US Pat. No. 9,339,973

CONTROL METHOD FOR STEREOLITHOGRAPHY STRUCTURE USED IN 3-D PRINTING

MICROJET TECHNOLOGY CO., ...

1. A control method for a stereolithography structure, comprising the steps of:
(a) providing a stereolithography structure including a main circuit system, an interface system, and a universal serial bus
transmission interface, wherein the main circuit system is used to control the interface system, and the interface system
includes a printing driving platform for allowing an user to operate the stereolithography structure;

(b) providing a computer system including a data transmission platform for generating printing data by performing a discontinuous
polar coordinate slicing operation according to operational instructions and converting slicing process data of a 3-D object
which is operated externally into 2-D slicing printing format image data,

wherein the discontinuous polar coordinate slicing operation comprises steps of:
forming a first sliced contour according to the information of the tangent points formed by an object;
determining if the first sliced contour has discontinuous surfaces; and
if it is determined that the first sliced contour has discontinuous surfaces, the first sliced contour is connected to form
a closed sliced contour by polar coordinate matching; and

(c) transmitting and receiving the 2-D slicing printing format image data converted by the data transmission platform of the
computer system through the universal serial bus transmission interface, and deciphering received data and re-formatting the
received data, in order to finish pre-planning procedure of driving operation, thereby transmitting data to the printing driving
platform to drive the printing driving platform to finish object forming operation by ink spraying operations.

US Pat. No. 9,421,714

PAGE-WIDTH PRINTING PLATFORM OF RAPID PROTOTYPING APPARATUS

MICROJET TECHNOLOGY CO., ...

1. A monochromatic page-width printing platform of a rapid prototyping apparatus, wherein the rapid prototyping apparatus
comprises a construction chamber and a moveable platform, the monochromatic page-width printing platform is installed on the
movable platform, and the monochromatic page-width printing platform and the movable platform are synchronously moved along
a single direction in a reciprocating motion, the monochromatic page-width printing platform comprising:
a plurality of inkjet head structures collaboratively defined as at least one page-width array printing unit, wherein the
inkjet head structures of the page-width array printing unit comprise respective inkjet chips, wherein the inkjet chips are
disposed on the monochromatic page-width printing platform and arranged in plural rows and in a staggered form, so that a
printing width of the inkjet chips is larger than or equal to a width of a printed pattern, wherein each of the inkjet chips
of the page-width array printing unit comprises at least one liquid supply slot, wherein a plurality of liquid ejectors are
located at one or two sides of the liquid supply slot along a long axis of the liquid supply slot, wherein there is an overlap
region between two adjacent inkjet chips in two adjacent rows, and the inkjet chips of the two adjacent rows in the overlap
region are aligned with each other, wherein at least one monochromatic print liquid is introduced into the construction chamber
from the plural inkjet head structures and printed on a construction material within the construction chamber, so that a rapid
prototyping monochromatic width-page printing operation is performed to produce a three-dimensional object by stacking multiple
layers.

US Pat. No. 9,302,431

RAPID PROTOTYPING APPARATUS FOR PRODUCING THREE-DIMENSIONAL CERAMIC OBJECT

MICROJET TECHNOLOGY CO., ...

1. A rapid prototyping apparatus for producing a three-dimensional ceramic object, the rapid prototyping apparatus comprising:
a construction platform, wherein a construction chamber is formed in the construction platform;
a movable platform disposed above the construction platform, wherein the movable platform and the construction platform are
movable relative to each other;

a printing module installed on the movable platform, and comprising at least one printhead unit, wherein the printing module
is synchronously moved with the movable platform;

a cleaning and maintenance module installed on the movable platform, wherein the cleaning and maintenance module is synchronously
moved with the movable platform;

a construction material spreading element installed on the movable platform for spreading a ceramic construction material
to the construction chamber;

a heater disposed over the construction platform, wherein after the ceramic construction material is spread in the construction
chamber, the construction material is heated by the heater; and

a heat shield disposed over the at least one printhead unit for shielding the at least one printhead unit,
wherein after the at least one printhead unit performs a printing operation, the at least one printhead unit is cleaned and
maintained by the cleaning and maintenance module.

US Pat. No. 9,586,365

POWDER RECYCLING SYSTEM

MICROJET TECHNOLOGY CO., ...

1. A powder recycling system for recycling remaining powder from a construction chamber of a three-dimensional object forming
apparatus, the powder recycling system comprising:
a powder feeder comprising a powder container for accommodating a construction powder, wherein the powder feeder comprises
a first inlet, a second inlet and a powder exhaust port, wherein the construction powder falls down to the construction chamber
through the powder exhaust port, so that a constructing process is performed within the construction chamber;

a remaining powder collector comprising a guiding tank, wherein the guiding tank surrounds the construction chamber for collecting
the remaining powder from the construction chamber, wherein a bottom of the guiding tank has a collector outlet;

a cyclone separator comprising a first cyclone unit and a second cyclone unit, wherein the first cyclone unit comprises a
first cyclone inlet, a first cyclone outlet and a first powder falling port, and the second cyclone unit comprises a second
cyclone inlet, a second cyclone outlet and a second powder falling port, wherein the first cyclone inlet is in communication
with the collector outlet of the remaining powder collector through a first duct, the first cyclone outlet is in communication
with the second cyclone inlet through a second duct, the first powder falling port is in communication with the first inlet
of the powder feeder, and the second powder falling port is in communication with the second inlet of the powder feeder, wherein
the remaining powder from the remaining powder collector is separated into large-size powdery particles and small-size powdery
particles by the cyclone separator, the large-size powdery particles fall down to the powder feeder to be recycled as the
construction powder, and the small-size powdery particles are outputted from the second cyclone outlet;

a particulate filter cleaner comprising a powder collecting tank, a covering member, a filter net, a cleaner inlet and an
airflow channel, wherein the filter net is arranged between the covering member and the powder collecting tank, an upper portion
of the powder collecting tank has an airflow conducting space, and the cleaner inlet is in communication with the second cyclone
outlet of the cyclone separator through a third duct, wherein when a negative pressure airflow is introduced into the airflow
channel, the small-size powdery particles of the remaining powder are transmitted from the second cyclone unit to the airflow
conducting space through the cleaner inlet and filtered by the filter net, so that portions of the small-size powdery particles
are suspended;

an air pressure generation device providing the negative pressure airflow, and comprising a first airflow port and a second
airflow port, wherein the first airflow port is in communication with the airflow channel of the particulate filter cleaner
through a fourth duct; and

an electrostatic precipitator comprising a connecting port and a dust collection plate, wherein the connecting port is in
communication with the second airflow port of the air pressure generation device through a fifth duct, wherein the suspended
small-size powdery particles from the particulate filter cleaner are introduced into the electrostatic precipitator through
the connecting port and adsorbed by electrostatic charges on the dust collection plate.

US Pat. No. 9,945,497

MINIATURE FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A miniature fluid control device for a miniature pneumatic device, comprising:a gas inlet plate comprising at least one inlet, at least one convergence channel and a central cavity, wherein a convergence chamber is defined by the central cavity, wherein after a gas is introduced into the at least one convergence channel through the at least one inlet, the gas is guided by the at least one convergence channel and converged to the convergence chamber;
a resonance plate having a central aperture corresponding to the convergence chamber of the gas inlet plate; and
a piezoelectric actuator comprising:
a suspension plate, wherein a length of the suspension plate is in a range between 7.5 mm and 12 mm, a width of the suspension plate is in a range between 7.5 mm and 12 mm, and a thickness of the suspension plate is in a range between 0.1 mm and 0.4 mm;
an outer frame, wherein the suspension plate and the outer frame are connected with each other through at least one bracket; and
a piezoelectric ceramic plate, attached on a first surface of the suspension plate, wherein a length of the piezoelectric ceramic plate is not larger than a length of the suspension plate, the length of the piezoelectric ceramic plate is in a range between 7.5 mm and 12 mm, a width of the piezoelectric ceramic plate is in a range between 7.5 mm and 12 mm, a thickness of the piezoelectric ceramic plate is in a range between 0.05 mm and 0.3 mm, and a length/width ratio of the piezoelectric ceramic plate is in a range between 0.625 and 1.6;
wherein the gas inlet plate, the resonance plate and the piezoelectric actuator are stacked on each other sequentially, and a gap is formed between the resonance plate and the piezoelectric actuator to define a first chamber, wherein when the piezoelectric actuator is driven and after the gas is fed into the miniature fluid control device through the at least one inlet of the gas inlet plate, the gas is sequentially converged to the central cavity through the at least one convergence channel, transferred through the central aperture of the resonance plate, introduced into the first chamber, transferred downwardly through a vacant space between the at least one bracket of the piezoelectric actuator, and exited from the miniature fluid control device.

US Pat. No. 10,314,198

AIR-COOLING HEAT DISSIPATION DEVICE AND SYSTEM

MICROJET TECHNOLOGY CO., ...

1. An air-cooling heat dissipation device located near an electronic component for removing heat therefrom, the air-cooling heat dissipation device comprising:a base comprising: a top surface; a bottom surface opposing to the top surface; two lateral walls connected between the top surface and the bottom surface; an introduction opening formed in the top surface; a guiding chamber running through the bottom surface and in communication with the introduction opening; and plural discharge grooves formed in one of the lateral walls and in communication with the guiding chamber and oriented toward the electronic component;
an air pump disposed on the top surface of the base and sealing the edge of the introduction opening; and
a supporting substrate, wherein a portion of the supporting substrate is connected to the bottom surface of the base to close a bottom side of the guiding chamber, and the electronic component is supported on the supporting substrate,
wherein when the air pump is enabled, an ambient air is introduced into the guiding chamber through the introduction opening and is discharged through the plural discharge grooves such that a lateral air flow is generated and passes over the electronic component to remove heat therefrom.

US Pat. No. 9,993,963

INKJET CHIP AND CONTROL CIRCUIT OF PRINTING MODULE OF RAPID PROTOTYPING APPARATUS

MICROJET TECHNOLOGY CO., ...

1. An inkjet chip used in a printing module of a rapid prototyping apparatus, wherein the printing module includes a printing platform, a carrying seat and at least two modular ink cartridges, and the at least two modular ink cartridges are disposed on the carrying seat, wherein each of the modular ink cartridges has a case body and three ink chambers, the three ink chambers are divided within the case body for receiving different print liquids, respectively, and the case bodies of the at least two modular ink cartridges contain at least one print liquid the same with each other, wherein the inkjet chip is disposed on a bottom of the case body of the modular ink cartridge and has a length and a width to define a total area, the inkjet chip comprising:an unwiring area having at least three liquid supply slots in parallel with each other and respectively connected to one of the three ink chambers of the modular ink cartridge; and
a wiring area having a control circuit, wherein the control circuit includes a plurality of liquid ejectors and each liquid ejector has a heating resistor, a driving transistor and a nozzle, wherein the heating resistors are disposed on the inkjet chip and sealed by a nozzle plate, the nozzles are disposed on the nozzle plate and corresponding to the heating resistors, the plural liquid ejectors are arranged along an axis and disposed at the bilateral sides of the corresponding liquid supply slot in staggered arrangement, and
the ratio of the wiring area of the inkjet chip to the total area of the inkjet chip is ranged from 85.03% to 94.65%.

US Pat. No. 9,989,047

MICRO-GAS PRESSURE DRIVING DEVICE

MICROJET TECHNOLOGY CO., ...

1. A micro-gas pressure driving device, comprising:a gas transportation module comprising a convergence plate, a resonance membrane and a piezoelectric actuator, wherein at least one inlet is formed in a first surface of the convergence plate, at least one convergence channel and a central opening are formed in a second surface of the convergence plate, and the at least one convergence channel is in communication with the at least one inlet, wherein the resonance membrane has a central aperture corresponding to the central opening of the convergence plate, wherein the convergence plate, the resonance membrane and the piezoelectric actuator are stacked on each other sequentially;
a covering plate disposed over the convergence plate of the gas transportation module; and
a tube plate disposed under the piezoelectric actuator of the gas transportation module, and comprising an input tube and an output tube,
wherein a first input chamber is located at a junction between the covering plate and the tube plate, a second input chamber is defined between the covering plate and the convergence plate of the gas transportation module, and an output chamber is defined between the tube plate and the piezoelectric actuator of the gas transportation module, wherein when the gas transportation module is activated to feed a gas into the input tube of the tube plate, the gas is sequentially transferred through the first input chamber, the second input chamber, the at least one inlet of the convergence plate, the at least one convergence channel of the convergence plate, the central opening of the convergence plate and the central aperture of the resonance membrane, and transferred through a vacant space of the piezoelectric actuator and the output chamber, and outputted from the output tube of the tube plate.

US Pat. No. 9,937,670

THREE-DIMENSIONAL RAPID PROTOTYPING APPARATUS AND POWDER FILTERING MECHANISM THEREOF

Microjet Technology Co., ...

1. A three-dimensional rapid prototyping apparatus, comprising:a construction platform comprising a construction chamber and a powder feeder;
a movable platform disposed over the construction platform, wherein when the movable platform is moved relative to the construction platform, construction powder is pushed from the powder feeder to the construction chamber;
a printing module disposed on the movable platform, wherein when the printing module is moved with the movable platform to a position over the construction chamber, a rapid prototyping process is performed in the construction chamber;
a powder inlet exposed to the construction platform;
an excess powder collector in communication with the powder inlet, wherein after the rapid prototyping process is completed, excess construction powder is collected by the excess powder collector; and
a powder filtering mechanism comprising:
a connecting part in communication with the powder inlet;
a main body comprising an outer shell, an entrance and an exit, wherein an accommodation space is defined within the outer shell, and plural filters are accommodated within the accommodation space;
a duct in communication with the connecting part and the entrance of the main body;
a suction device in communication with the exit of the main body; and
a bracket connected with a bottom surface of the main body, wherein a micro-particle adsorption structure is supported by the bracket,
wherein during operation of the suction device, flying dust of the excess construction powder is inhaled into the powder inlet, and a portion of the flying dust is transferred to the accommodation space of the main body through the connecting part and the duct, wherein after the portion of the flying dust is introduced into the accommodation space of the main body, the portion of the flying dust is filtered by the plural filters in multiple filtering steps, and micro-particles of flying dust passing through the plural filters are transferred to the micro-particle adsorption structure through the exit of the main body and the suction device so as to be adsorbed by the micro-particle adsorption structure.

US Pat. No. 9,976,673

MINIATURE FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A miniature fluid control device for a miniature pneumatic device, comprising:a gas inlet plate comprising at least one inlet, at least one convergence channel and a central cavity, wherein a convergence chamber is defined by the central cavity, wherein after a gas is introduced into the at least one convergence channel through the at least one inlet, the gas is guided by the at least one convergence channel and converged to the convergence chamber;
a resonance plate having a central aperture corresponding to the convergence chamber of the gas inlet plate; and
a piezoelectric actuator comprising:
a suspension plate, wherein a length of the suspension plate is in a range between 7.5 mm and 12 mm, a width of the suspension plate is in a range between 7.5 mm and 12 mm, and a thickness of the suspension plate is in a range between 0.1 mm and 0.4 mm;
an outer frame, wherein the suspension plate and the outer frame are connected with each other through at least one bracket; and
a piezoelectric ceramic plate, attached on a first surface of the suspension plate, wherein a length of the piezoelectric ceramic plate is not larger than a length of the suspension plate, the length of the piezoelectric ceramic plate is in a range between 7.5 mm and 12 mm, a width of the piezoelectric ceramic plate is in a range between 7.5 mm and 12 mm, a thickness of the piezoelectric ceramic plate is in a range between 0.05 mm and 0.3 mm, and a length/width ratio of the piezoelectric ceramic plate is in a range between 0.625 and 1.6;
wherein the gas inlet plate, the resonance plate and the piezoelectric actuator are stacked on each other sequentially, and a gap is formed between the resonance plate and the piezoelectric actuator to define a first chamber, wherein when the piezoelectric actuator is driven and after the gas is fed into the miniature fluid control device through the at least one inlet of the gas inlet plate, the gas is sequentially converged to the central cavity through the at least one convergence channel, transferred through the central aperture of the resonance plate, introduced into the first chamber, transferred downwardly through a vacant space between the at least one bracket of the piezoelectric actuator, and exited from the miniature fluid control device.

US Pat. No. 9,931,792

POWDER RECYCLING MACHINE

Microjet Technology Co., ...

1. A powder recycling machine, comprising:a casing having a partition plate therein, wherein an accommodation space within the casing is divided into a first space and a second space by the partition plate;
a powder collector disposed within the first space for collecting excess powder from the first space;
a dust-sucking system disposed within the second space, and comprising a connector, a cyclone separator, a first suction device and plural transmission ducts, wherein the connector, the cyclone separator, the first suction device and the powder collector are sequentially in communication with each other through the plural transmission ducts, wherein the connector is partially exposed outside the casing and connected with an external dust-sucking pipe, wherein the cyclone separator comprises a first cyclone unit, a second cyclone unit and a collecting tank, the first cyclone unit comprises a first powder outlet, a first cyclone inlet and a first cyclone outlet, and the second cyclone unit comprises a second powder outlet, a second cyclone inlet and a second cyclone outlet, wherein the first cyclone inlet is in communication with the connector, the first cyclone outlet is in communication with the second cyclone inlet, and the second cyclone outlet is in communication with the first suction device, and the collecting tank comprises a first inlet, a second inlet and a powder-falling port, wherein the first inlet of the collecting tank is in communication with the first powder outlet, the second inlet of the collecting tank is in communication with the second powder outlet, and the powder-falling port is in communication with the powder collector through a bypass duct;
a processing platform disposed within the first space, and comprising a screen mesh and a recycling tank, wherein the recycling tank is disposed under the processing platform and in communication with the powder collector, wherein the excess powder passing through the screen mesh and the excess powder in the powder collector are further transferred to the recycling tank, wherein after the excess powder is removed from the first space, the excess powder is sieved by the screen mesh; and
a dust-removing system disposed within the second space, and comprising a second suction device and plural guiding ducts, wherein the first space, the second suction device and the powder collector are sequentially in communication with each other through the plural guiding ducts, wherein after the excess powder suspended in the first space is introduced into the dust-removing system, the excess powder is transferred to the powder collector.

US Pat. No. 10,005,240

POWDER RECYCLING SYSTEM

MICROJET TECHNOLOGY CO., ...

1. A powder recycling system, comprising:a sealed main body having plural partition plates therein, wherein an inner portion of the sealed main body is divided into a sealed chamber, a component accommodation space and an excess powder receiving space by the plural partition plates, and a first partition plate of the plural partition plates is located between the sealed chamber and the component accommodation space, wherein the sealed chamber has a front door plate with plural openings, and the plural openings are connected with a corresponding isolation elements, wherein a screen mesh is located at a bottom side of the sealed chamber, and a powder collector is disposed within the excess powder receiving space and under the screen mesh, wherein when a three-dimensional object is accommodated within the sealed chamber and an excess powder removing process is performed to remove excess powder, the excess powder is sieved by the screen mesh and collected by the powder collector, so that the excess powder is recycled;
a negative pressure generator disposed within the component accommodation space for providing negative pressure airflow, wherein the negative pressure generator comprises an input channel and an output channel, wherein the input channel is penetrated through the first partition plate and is in communication with the sealed chamber, and a filter is installed in the input channel of the negative pressure generator for filtering the negative pressure airflow;
an air pressure generator disposed within the component accommodation space for providing pressurized airflow, wherein the air pressure generator has a tube in communication with the sealed chamber, and the tube is connected with an air spray gun that is disposed within the sealed chamber, wherein the pressurized airflow is ejected out from the air spray gun to remove the excess powder from the three-dimensional object;
a lighting unit for illuminating the sealed chamber; and
a heater for thermally treating the three-dimensional object so as to increase structural strength of the three-dimensional object.

US Pat. No. 9,937,639

POWDER HEATING ASSEMBLY AND HEATING MODULE OF RAPID PROTOTYPING APPARATUS

Microjet Technology Co., ...

1. A powder heating assembly of a rapid prototyping apparatus, the powder heating assembly comprising:a powder feeder comprising an accommodation space and a powder falling port in communication with the accommodation space, wherein a construction powder is accommodated within the accommodation space;
a heating module disposed under the powder feeder, and comprising a thermally conductive cap and a heat conduction structure, wherein the powder falling port is capped by the thermally conductive cap, the thermally conductive cap comprises a powder exhaust port, and the powder exhaust port is in communication with the powder falling port, wherein the heat conduction structure is arranged between the accommodation space of the powder feeder and the thermally conductive cap and comprises a heater, wherein the heat generated by the heater is transferred to the construction powder within the powder feeder through the heat conduction structure and the thermally conductive cap to preheat the construction powder accommodated within a bottom of the accommodation space, remove the moisture contained in the construction powder and dry the construction powder, wherein after the dried construction powder is ejected out of the powder exhaust port, a powder spreading process is performed.

US Pat. No. 9,611,843

MICRO-GAS PRESSURE DRIVING APPARATUS

MICROJET TECHNOLOGY CO., ...

1. A micro-gas pressure driving apparatus, comprising:
a miniature gas transportation module comprising:
a gas inlet plate having at least one inlet, wherein a gas is fed into the miniature gas transportation module through the
at least one inlet;

a fluid channel plate comprising at least one convergence channel and a central opening, wherein the at least one convergence
channel is aligned with the at least one inlet of the gas inlet plate, wherein after the gas is fed into the at least one
inlet, the gas is guided by the at least one convergence channel and converged to the central opening;

a resonance membrane having a central aperture corresponding to the central opening of the fluid channel plate; and
a piezoelectric actuator comprising a suspension plate, an outer frame and a piezoelectric ceramic plate, wherein the suspension
plate and the outer frame are connected with each other through at least one bracket, and the piezoelectric ceramic plate
is attached on a surface of the suspension plate,

wherein the gas inlet plate, the fluid channel plate, the resonance membrane and the piezoelectric actuator are stacked on
each other sequentially, and the resonance membrane and the piezoelectric actuator are separated from each other by a gap,
so that a first chamber is defined between the resonance membrane and the piezoelectric actuator, wherein when the piezoelectric
actuator is activated to feed the gas into the miniature gas transportation module through the at least one inlet, sequentially
converge the gas through the at least one convergence channel to the central opening of the fluid channel plate, transferred
through the central aperture of the resonance membrane, introduced into the first chamber, transferred downwardly through
a vacant space between the at least one bracket, the suspension plate and the outer frame, and exited from the miniature gas
transportation module; and

a miniature valve module comprising:
a gas collecting plate comprising a first perforation, a second perforation, a first pressure-releasing chamber and a first
outlet chamber, wherein the first perforation is in communication with the first pressure-releasing chamber, and the second
perforation is in communication with the first outlet chamber;

a valve membrane having a valve opening; and
a gas outlet plate comprising a third perforation corresponding to the first perforation of the gas collecting plate, a fourth
perforation corresponding to the second perforation of the gas collecting plate, a second pressure-releasing chamber, a second
outlet chamber and a communication channel, wherein the third perforation is in communication with the second pressure-releasing
chamber, the fourth perforation is in communication with the second outlet chamber, and the communication channel is arranged
between the second pressure-releasing chamber and the second outlet chamber,

wherein the gas collecting plate, the valve membrane and the gas outlet plate are stacked on each other sequentially, the
valve membrane is arranged between the gas collecting plate and the gas outlet plate, and the valve opening of the valve membrane
is arranged between the second perforation and the fourth perforation, wherein after the gas is downwardly transferred from
the miniature gas transportation module to the miniature valve module, the gas is introduced into the first pressure-releasing
chamber and the first outlet chamber through the first perforation and the second perforation, and the gas within the first
outlet chamber is further transferred to the fourth perforation through the valve opening of the valve membrane, so that a
pressure of the gas is collected, wherein if the collected pressure of the gas is higher than an ambient pressure and a pressure-releasing
operation is performed, the gas is transferred from the fourth perforation to the second outlet chamber to move the valve
membrane such that the valve opening of the valve membrane is contacted with and closed by the gas collecting plate, the gas
is transferred from the second outlet chamber to the second pressure-releasing chamber through the communication channel,
and the gas is exited from the third perforation.

US Pat. No. 10,312,033

LIFTABLE KEYBOARD

MICROJET TECHNOLOGY CO., ...

1. A liftable keyboard for use with a portable electronic device having a top cover and a base with a sensing element, the liftable keyboard comprising:at least one key unit, each of which comprises a keycap and an elastomer aligned with the keycap and having an elastomeric chamber;
a membrane switch circuit layer comprising at least one gas-inputting port and at least one gas-outputting port, wherein the at least one gas-inputting port is aligned with an opening of the elastomeric chamber; and
a micro pump located under the membrane switch circuit layer, comprising an inlet and an outlet, wherein the inlet is in communication with the at least one gas-inputting port of the membrane switch circuit layer, and the outlet is in communication with the at least one gas-outputting port of the membrane switch circuit layer,
wherein when the sensing element within the base of the portable electronic device senses that the top cover is close to the base, the micro pump is enabled to perform a gas-extracting action, wherein while the gas-extracting action is being performed, a gas in the elastomeric chamber is extracted downwardly from the opening of the elastomeric chamber, passing through the at least one gas-inputting port of the membrane switch circuit layer and entering the micro pump through the inlet thereof, after which the gas is outputted from the micro pump through the outlet thereof and is discharged from the at least one gas-outputting port of the membrane switch circuit layer, so that the elastomer is subjected to compressed deformation, wherein the keycap is moved downwardly in response to the compressed deformation of the elastomer so as to reduce an altitude of the at least one key unit.

US Pat. No. 10,251,428

DRIVING MODULE FOR ELECTRONIC CIGARETTE

MICROJET TECHNOLOGY CO., ...

1. A driving module for an electronic cigarette containing a cigarette liquid, the electronic cigarette comprising a casing, a mouthpiece, a sensing unit, an atomization component, a liquid storage component and a fluid transportation device, the driving module comprising:a battery for providing a driving power to the electronic cigarette;
a connection interface electrically connected with the battery;
a power board electrically connected with the battery through the connection interface, and comprising a voltage converter, a heater module and a voltage controller, wherein the voltage converter is configured to adjust the magnitude of the voltage of the driving power, the heater module is configured to drive the atomization component to heat and atomize the cigarette liquid, and the voltage controller is configured to calculate a specified voltage value; and
a control board electrically connected with the battery through the connection interface, and comprising a microprocessor and a fluid driving unit, wherein the microprocessor receives a control signal and issues a driving signal, and the fluid driving unit drives the fluid transportation device to transfer the cigarette liquid according to the driving signal,
wherein when the microprocessor receives the control signal, the microprocessor controls the voltage controller to calculate the specified voltage value according to the control signal and the voltage converter to convert a voltage of the driving power provided by the battery into the specified voltage, and the microprocessor issues the driving signal to the fluid driving unit and the heater module such that the driving power with the specified voltage value is provided to the fluid transportation device and the atomization component by the fluid driving unit and the heater module respectively, thereby enabling the fluid transportation device to transfer the cigarette liquid to the atomization component which atomizes the cigarette liquid to generate an atomized vapor.

US Pat. No. 10,308,025

MANUFACTURING METHOD OF FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A manufacturing method of a fluid control device, comprising:(a) providing a housing, a piezoelectric actuator and a deformable substrate, wherein the piezoelectric actuator comprises a piezoelectric element and a vibration plate, and the deformable substrate comprises a flexible plate and a communication plate, wherein the vibration plate has a first surface and an opposing second surface, a bulge is formed on the second surface of the vibration plate, and the flexible plate comprises a movable part;
(b) stacking and coupling the flexible plate and the communication plate of the deformable substrate, and implementing a preformed synchronous deformation process by applying at least one external force to an exterior portion of the deformable substrate to form a preformed synchronously-deformed structure defined by the flexible plate and the communication plate collaboratively, wherein a force-exerting mark is formed on a surface of the preformed synchronously-deformed structure where the at least one external force is applied; and
(c) coupling the housing, the piezoelectric actuator and the deformable substrate which are sequentially stacked, wherein the preformed synchronously-deformed structure of the deformable substrate is aligned with the bulge of the vibration plate to define a specified depth between the movable part of the flexible plate and the bulge of the vibration plate.

US Pat. No. 10,285,307

AIR-COOLING HEAT DISSIPATION DEVICE

MICROJET TECHNOLOGY CO., ...

1. An air-cooling heat dissipation device for removing heat from an electronic component, the air-cooling heat dissipation device comprising:a supporting substrate having a top surface, a bottom surface, an introduction opening, and at least one circulating groove running through the top surface and the bottom surface of the supporting substrate;
a thermal conduction plate located over the top surface of the supporting substrate and aligned with the introduction opening, and the electronic component is disposed on the thermal conduction plate, wherein a gap is formed between the thermal conduction plate and the supporting substrate for allowing air to go through, and the at least one circulating groove is adjacent to the thermal conduction plate;
an air pump fixed on the bottom surface of the supporting substrate and aligned with the introduction opening; and
a heat sink attached on the electronic component,
wherein when the air pump is enabled, an ambient air is introduced into the introduction opening and dispersed across the bottom of the thermal conduction plate via the gap, after which a part of the air is discharged through the circulating groove to remove heat from the thermal conduction plate.

US Pat. No. 10,105,901

RAPID PROTOTYPING APPARATUS WITH PAGE-WIDTH ARRAY PRINTING MODULE

MICROJET TECHNOLOGY CO., ...

1. A rapid prototyping apparatus, comprising:a construction platform comprising a construction chamber, wherein the length of the construction chamber is ranged from 0.8 m to 1.5 m, the width of the construction chamber is ranged from 0.8 to 1.5 m, and the height of construction chamber is ranged from 0.8 m to 1.2 m;
a movable platform disposed above the construction platform; and
a page-width array printing module installed on the movable platform and synchronously moved along a single direction in a reciprocating motion, wherein the page-width array printing module comprises at least one printing platform and plural inkjet head structures disposed thereon, and the plural inkjet head structures are installed on the printing platform and collaboratively defined as at least one page-width array printing unit, wherein the plural inkjet head structures of each page-width array printing unit and replaceable and comprise respective inkjet chips, and the inkjet chips are disposed on the printing platform and arranged in at least one row and in a staggered form, so that a printing width of the page-width array printing unit is larger than or equal to the width of the construction chamber, and a rapid prototyping width-page printing operation is performed.

US Pat. No. 10,260,657

MINIATURE FLUID CONTROL DEVICE AND PIEZOELECTRIC ACTUATOR THEREOF

MICROJET TECHNOLOGY CO., ...

1. A piezoelectric actuator, comprising:a suspension plate having a square shape and with a middle portion and a periphery portion, wherein the suspension plate is permitted to undergo a curvy vibration from the middle portion to the periphery portion;
an outer frame arranged around the suspension plate;
plural brackets perpendicularly connected between the suspension plate and the outer frame for elastically supporting the suspension plate, wherein each bracket has a length in a range between 1.11 mm and 1.21 mm and a width in a range between 0.2 mm and 0.6 mm; and
a piezoelectric ceramic plate having a square shape, wherein a length of a side of the square shape of the piezoelectric ceramic plate is equal to or less than a length of a side of the square shape of the suspension plate, and the piezoelectric ceramic plate is attached on a first surface of the suspension plate, wherein when a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration.

US Pat. No. 10,176,942

LIFTABLE KEYBOARD

MICROJET TECHNOLOGY CO., ...

1. A liftable keyboard for a portable electronic device having a top cover and a base with a sensing element, the liftable keyboard comprising:a plurality of key units, each of which comprises a keycap and an elastomer aligned with the keycap;
a membrane switch circuit layer comprising a plurality of gas-inputting ports and a plurality of gas-outputting ports, wherein each of the gas-inputting ports is aligned with the elastomer of the corresponding key unit;
a plurality of vent valves, each of which is located under the membrane switch circuit layer and aligned with the corresponding key unit, wherein each of the vent valves comprises an inlet, an outlet and a gas exhaust chamber, wherein the inlet is in communication with the corresponding gas-inputting port of the membrane switch circuit layer, and the outlet is in communication with the corresponding gas-outputting port of the membrane switch circuit layer, and wherein each of the gas exhaust chambers of the vent valves is in communication with the gas exhaust chamber of the at least one adjacent vent valve; and
a pump in communication with the gas exhaust chambers of the vent valves,
wherein when the sensing element within the base of the portable electronic device senses that the top cover is close to the base, the pump is enabled to apply suction to the gas exhaust chambers of the vent valves such that a gas in the elastomer of each key unit is extracted to the gas exhaust chamber of the corresponding vent valve, sequentially passing through the corresponding gas-inputting port of the membrane switch circuit layer and the inlet of the corresponding vent valve, after which the gas is outputted from the outlet of the corresponding vent valve and discharged from the corresponding gas-outputting port of the membrane switch circuit layer, so that the elastomer of each key unit is subjected to compressed deformation and the keycap of each key unit is moved downwardly in response to the compressed deformation of the elastomer, so as to reduce an altitude of each key unit.

US Pat. No. 10,308,024

MANUFACTURING METHOD OF FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A manufacturing method of a fluid control device, comprising:(a) providing a housing, a piezoelectric actuator and a deformable substrate, wherein the piezoelectric actuator comprises a piezoelectric element and a vibration plate, and the deformable substrate comprises a flexible plate and a communication plate, wherein the vibration plate has a first surface and an opposing second surface, a bulge is formed on the second surface of the vibration plate, and the flexible plate comprises a movable part;
(b) stacking and coupling the flexible plate and the communication plate of the deformable substrate, and implementing a preformed synchronous deformation process by applying at least one external force to an outer portion of the deformable substrate to form a preformed synchronously-deformed structure defined by the flexible plate and the communication plate collaboratively; and
(c) coupling the housing, the piezoelectric actuator and the deformable substrate which are sequentially stacked, wherein the preformed synchronously-deformed structure of the deformable substrate is aligned with the bulge of the vibration plate to define a specified depth between the movable part of the flexible plate and the bulge of the vibration plate.

US Pat. No. 10,236,799

DRIVING CIRCUIT FOR PIEZOELECTRICALLY ACTUATED PUMP

MICROJET TECHNOLOGY CO., ...

1. A driving circuit for a piezoelectrically actuated pump, wherein the piezoelectrically actuated pump comprises a piezoelectric actuator load, the driving circuit comprising:a boost converter receiving an input voltage and converting the input voltage into a constant voltage;
a control circuit electrically connected with the boost converter, receiving the constant voltage outputted form the boost converter, and comprising a voltage-division circuit, a comparator and a frequency adjustment circuit, wherein the constant voltage is divided into a first voltage and a second voltage by the voltage-division circuit, and the comparator compares the first voltage with the second voltage and outputs a positive voltage or a negative voltage according to a comparing result; and
a voltage switch circuit electrically connected with the control circuit, receiving the positive voltage or the negative voltage outputted from the comparator, and comprising a half-bridge circuit comprising a first switch element and a second switch element, wherein the voltage switch circuit receives the positive voltage or the negative voltage outputted from the comparator and feedbacks the positive voltage or the negative voltage to the piezoelectric actuator load so as to form a required positive voltage or a required negative voltage;
wherein the control circuit and the voltage switch circuit form a resonant circuit to control the operation of the piezoelectric actuator load according to the variety of the minor voltage outputted form the piezoelectric actuator load, and the frequency adjustment circuit of the control circuit detects and adjusts the variety of the minor voltage outputted from the piezoelectric actuator load automatically so as to adjust an operating frequency of the piezoelectric actuator load to a required operating frequency.

US Pat. No. 10,325,832

AIR-COOLING HEAT DISSIPATION DEVICE

MICROJET TECHNOLOGY CO., ...

1. An air-cooling heat dissipation device for removing heat from an electronic component, the air-cooling heat dissipation device comprising:a supporting substrate comprising a top surface, a bottom surface, an introduction opening and a thermal conduction plate, wherein the thermal conduction plate is disposed on the top surface of the supporting substrate and aligned with the introduction opening, and the electronic component is disposed on the thermal conduction plate;
an air pump, wherein the air pump is a piezoelectric air pump fixed on the bottom surface of the supporting substrate, and correspondingly sealing the introduction opening, wherein the air pump comprises:
a resonance plate having a central aperture;
a piezoelectric actuator aligned with the resonance plate; and
a covering member having a sidewall, a bottom plate and an opening, wherein the bottom surface of the supporting substrate continuously extends from one side of the sidewall to the other side of the sidewall, and the sidewall is protruding from the edge of the bottom plate to contact the bottom surface of the supporting substrate, wherein an accommodation space is defined by the bottom plate and the sidewall collaboratively, the resonance plate and the piezoelectric actuator are disposed within the accommodation space, and the opening is formed on the sidewall, wherein a first chamber is formed between the resonance plate and the bottom plate of covering member, and a convergence chamber is defined by the resonance plate and the sidewall of the covering member collaboratively; and
a heat sink attached on the electronic component,
wherein when the piezoelectric actuator is enabled to perform a gas-collection operation, a gas is introduced into the air pump through the opening of the covering member and converged to the convergence chamber, and then the gas is transferred to the first chamber through the central aperture of the resonance plate and temporarily stored in the first chamber, wherein when the piezoelectric actuator is enabled to perform a gas-releasing operation, the gas flows from the first chamber through the central aperture of the resonance plate and to the introduction opening, so as to exchange heat with the thermal conduction plate.

US Pat. No. 10,288,192

MINIATURE FLUID CONTROL DEVICE AND PIEZOELECTRIC ACTUATOR THEREOF

MICROJET TECHNOLOGY CO., ...

1. A piezoelectric actuator, comprising:a suspension plate having a square shape and with a middle portion and a periphery portion, wherein the suspension plate is permitted to undergo a curvy vibration from the middle portion to the periphery portion;
an outer frame arranged around the suspension plate;
plural brackets perpendicularly connected between the suspension plate and the outer frame for elastically supporting the suspension plate, wherein each bracket has a length in a range between 1.11 mm and 1.21 mm and a width in a range between 0.2 mm and 0.6 mm; and
a piezoelectric ceramic plate having a square shape, wherein a length of a side of the square shape of the piezoelectric ceramic plate is equal to or less than a length of a side of the square shape of the suspension plate, and the piezoelectric ceramic plate is attached on a first surface of the suspension plate, wherein when a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration.

US Pat. No. 10,218,829

PORTABLE ELECTRONIC DEVICE

MICROJET TECHNOLOGY CO., ...

1. A portable electronic device, comprising:a casing;
a flexible display panel coupled with the casing and comprising a movable region;
a cushion attached on the movable region of the flexible display panel;
an inflatable pad attached on a bottom surface of the flexible display panel and covering the cushion;
a gas transportation device disposed within the casing and in communication with the inflatable pad to transfer gas to the inflatable pad so that the inflatable pad is inflated and supporting the flexible display panel; and
a sensing unit electrically connected with the gas transportation device, wherein when an external contact force is sensed by the sensing unit, the sensing unit transmits a first driving signal to the gas transportation device, wherein in response to the first driving signal, the gas transportation device transfers gas to the inflatable pad to expand the inflatable pad and make the inflatable pad raise the cushion, so that the movable region of the flexible display panel corresponding to the cushion is raised.

US Pat. No. 10,180,199

FLUID CONTROL DEVICE HAVING A PIEZOELECTRIC ACTUATOR

MICROJET TECHNOLOGY CO., ...

1. A fluid control device, comprising:a piezoelectric actuator comprising a suspension plate, an outer frame, at least one bracket and a piezoelectric element, wherein the outer frame is arranged around the suspension plate, the at least one bracket is connected between the suspension plate and the outer frame, the piezoelectric element is attached on the suspension plate, and a length of a side of the piezoelectric element is equal to or less than a length of a side of the suspension plate;
a housing comprising an outlet plate and a base, wherein the outlet plate comprises a sidewall and a bottom plate, the sidewall is protruded from edges of the bottom plate, an accommodation space is defined by the sidewall and the bottom plate collaboratively, and the piezoelectric actuator is disposed within the accommodation space, wherein the base comprises an inlet plate and a resonance plate, the base covers the accommodation space of the outlet plate to seal the piezoelectric actuator, the inlet plate comprises a convergence chamber connected to outside, the resonance plate is fixed on the inlet plate, the resonance plate comprises a central aperture, and the central aperture is aligned with the convergence chamber; and
a glue body arranged between the outer frame of the piezoelectric actuator and the resonance plate of the base to maintain a gap formed between the piezoelectric actuator and the resonance plate of the base,
wherein a linear expansion coefficient of the suspension plate is lower than a linear expansion coefficient of the piezoelectric element, and the suspension plate has a specified hardness to maintain a curved shape after being heated, and the linear expansion coefficient of the suspension plate is different from a linear expansion coefficient of the resonance plate, so that an effective deformation displacement between the suspension plate and the resonance plate is obtained.

US Pat. No. 10,199,306

AIR-COOLING HEAT DISSIPATION DEVICE

MICROJET TECHNOLOGY CO., ...

1. An air-cooling heat dissipation device for removing heat from an electronic component, the air-cooling heat dissipation device comprising:a guiding carrier comprising a first surface, a second surface, a pump-receiving recess, a first guiding chamber, a second guiding chamber, an introduction opening, a communication structure and at least one discharge groove, wherein the first surface is a top surface of the guiding carrier, the second surface is a bottom surface of the guiding carrier, the pump-receiving recess is concavely formed in the first surface of the guiding carrier, the first guiding chamber is concavely formed in a bottom surface of the pump-receiving recess, the introduction opening is formed in the bottom surface of the pump-receiving recess, the introduction opening is in communication with the first guiding chamber, the second guiding chamber is concavely formed in the second surface, the communication structure is in communication between the first guiding chamber and the second guiding chamber, the at least one discharge groove is in communication between the second guiding chamber and surroundings of the air-cooling heat dissipation device, and the electronic component is disposed within the second guiding chamber;
a gas pump disposed within the pump-receiving recess of the guiding carrier and sealing the edge of the introduction opening, wherein the gas pump comprises a resonance plate, a piezoelectric actuator and a covering member, wherein the resonance plate has a central aperture, the piezoelectric actuator is aligned with the resonance plate, and the covering member comprises a sidewall, a bottom plate and an opening, wherein the sidewall is protruded from edges of the bottom plate, an accommodation space is defined by the sidewall and the bottom plate collaboratively, the resonance plate and the piezoelectric actuator are accommodated within the accommodation space, a first chamber is formed between the bottom plate of the covering member and the resonance plate, and a convergence chamber is formed between the resonance plate and the sidewall of the covering member,
wherein when the gas pump is enabled, an ambient gas is introduced into the first guiding chamber through the introduction opening and transferred to the second guiding chamber through the communication structure so as to exchange heat with the electronic component, after which the heated gas is discharged through the at least one discharge groove.

US Pat. No. 10,343,404

MANUFACTURING METHOD OF FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A manufacturing method of a fluid control device, comprising:(a) providing a housing, a piezoelectric actuator and a deformable substrate, wherein the piezoelectric actuator comprises a piezoelectric element and a vibration plate, and the deformable substrate comprises a flexible plate and a communication plate, wherein the vibration plate has a first surface and an opposing second surface, a bulge is formed on the second surface of the vibration plate, and the flexible plate comprises a movable part;
(b) stacking and coupling the flexible plate and the communication plate of the deformable substrate, and implementing a preformed synchronous deformation process by applying at least one external force to an outer portion of the deformable substrate to form a preformed synchronously-deformed structure defined by the flexible plate and the communication plate collaboratively; and
(c) coupling the housing, the piezoelectric actuator and the deformable substrate which are sequentially stacked, wherein the preformed synchronously-deformed structure of the deformable substrate is aligned with the bulge of the vibration plate to define a specified depth between the movable part of the flexible plate and the bulge of the vibration plate.

US Pat. No. 10,343,405

MANUFACTURING METHOD OF FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A manufacturing method of a fluid control device, comprising:(a) providing a housing, a piezoelectric actuator and a deformable substrate, wherein the piezoelectric actuator comprises a piezoelectric element and a vibration plate, and the deformable substrate comprises a flexible plate and a communication plate, wherein the vibration plate has a first surface and an opposing second surface, a bulge is formed on the second surface of the vibration plate, the communication plate has an outer surface, and the flexible plate comprises a movable part;
(b) stacking and coupling the flexible plate and the communication plate to form the deformable substrate; and
(c) coupling the housing, the piezoelectric actuator and the deformable substrate which are sequentially stacked, applying at least one external force thereon to implement a synchronous deformation process, so that the flexible plate and the communication plate of the deformable substrate are subjected to a synchronous deformation, and a specified depth is defined between the movable part of the flexible plate and the bulge of the vibration plate,
wherein a synchronously-deformed region of the deformable substrate includes the movable part, the deformable substrate is a conical synchronously-deformed structure, and the specified depth is defined between the conical synchronously-deformed structure and the bulge of the vibration plate.

US Pat. No. 10,244,785

THREE-DIMENSIONAL COOKING MACHINE

MICROJET TECHNOLOGY CO., ...

1. A three-dimensional cooking machine, comprising:a control computer for storing an image file of a predetermined food model and outputting a control command corresponding to the image file of the food model; and
a food ingredient laminating device comprising an ink-jet printer, wherein the ink-jet printer is controlled to perform a three-dimensional food laminating operation according to the control command from the control computer, and the ink-jet printer comprises:
a working platform;
a movable carrying mechanism;
at least one printhead for ejecting a food ingredient, wherein the at least one printhead comprises a printhead platform, a food ingredient supply tank and a pressure regulator, wherein the food ingredient supply tank is located over the printhead platform and contains the food ingredient, and an internal pressure within the food ingredient supply tank is adjusted to be maintained at a negative pressure by the pressure regulator, wherein the printhead platform comprises a printhead chamber and plural nozzles, the plural nozzles are located under the printhead chamber, the plural nozzles are in communication with the printhead chamber, and the food ingredient supply tank and the pressure regulator are in communication with the printhead chamber, wherein the plural nozzles eject ink drops configured to be controlled to comply with the following conditions: a volume of each ink drop is in a range between 0.1˜20000 picoliter, a diameter of each ink drop is in a range between 0.05 and 200000 picometer, a volume error of each ink drop is 20%, and an ejection rate of each ink drop is in a range between 0-10000 drops/second; and
at least one base disposed on the working platform, wherein the movable carrying mechanism is located over the working platform, and movable along two horizontal axis directions and a vertical axis direction according to the control command from the control computer, wherein the at least one printhead is supported on the movable carrying mechanism, and freely moved along the two horizontal axis directions and the vertical axis direction to eject the food ingredient from the plural nozzles on the at least one base so as to produce a three-dimensional food product by laminating multiple layers of the food ingredient.

US Pat. No. 10,438,868

AIR-COOLING HEAT DISSIPATION DEVICE

MICROJET TECHNOLOGY CO., ...

1. An air-cooling heat dissipation device for removing heat from an electronic component, the air-cooling heat dissipation device comprising:a supporting substrate comprising a top surface, a bottom surface, an introduction opening and a thermal conduction plate, wherein the thermal conduction plate is disposed on the top surface of the supporting substrate and aligned with the introduction opening, and the electronic component is disposed on the thermal conduction plate;
an air pump, wherein the air pump is a piezoelectric air pump fixed on the bottom surface of the supporting substrate, and correspondingly sealing the introduction opening, wherein the air pump comprises:
a resonance plate having a central aperture;
a piezoelectric actuator aligned with the resonance plate; and
a covering member having a sidewall, a bottom plate and an opening, wherein the bottom surface of the supporting substrate continuously extends from one side of the sidewall to the other side of the sidewall, and the sidewall is protruding from the edge of the bottom plate to contact the bottom surface of the supporting substrate, wherein an accommodation space is defined by the bottom plate and the sidewall collaboratively, the resonance plate and the piezoelectric actuator are disposed within the accommodation space, and the opening is formed on the sidewall, wherein a first chamber is formed between the resonance plate and the bottom plate of covering member, and a convergence chamber is defined by the resonance plate and the sidewall of the covering member collaboratively; and
a heat sink attached on the electronic component,
wherein when the piezoelectric actuator is enabled to perform a gas-collection operation, a gas is introduced into the air pump through the opening of the covering member and converged to the convergence chamber, and then the gas is transferred to the first chamber through the central aperture of the resonance plate and temporarily stored in the first chamber, wherein when the piezoelectric actuator is enabled to perform a gas-releasing operation, the gas flows from the first chamber through the central aperture of the resonance plate and to the introduction opening, so as to exchange heat with the thermal conduction plate.

US Pat. No. 10,388,850

PIEZOELECTRIC ACTUATOR

MICROJET TECHNOLOGY CO., ...

1. A piezoelectric actuator, comprising:a suspension plate, wherein the suspension plate is a square structure, a length of the suspension plate is in a range between 4 mm and 8 mm, and the suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion;
an outer frame arranged around the suspension plate; at least one bracket connected between the suspension plate and the outer frame for elastically supporting the suspension plate; and
a piezoelectric ceramic plate, wherein the piezoelectric ceramic plate is a square structure, a length of the piezoelectric ceramic plate is not larger than a length of the suspension plate, and the piezoelectric ceramic plate is attached on a first surface of the suspension plate, wherein when a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration,
wherein the suspension plate further comprises a bulge, and the bulge is formed on a second surface of the suspension plate.

US Pat. No. 10,378,529

MINIATURE PNEUMATIC DEVICE

MICROJET TECHNOLOGY CO., ...

1. A miniature pneumatic device, comprising:a miniature fluid control device comprising:
a gas inlet plate comprising at least one inlet, at least one convergence channel and a central cavity, wherein a convergence chamber is defined by the central cavity, wherein after a gas is introduced into the at least one convergence channel through the at least one inlet, the gas is guided by the at least one convergence channel and converged to the convergence chamber;
a resonance plate having a central aperture corresponding to the convergence chamber of the gas inlet plate;
a piezoelectric actuator comprising:
a suspension plate, wherein a length of the suspension plate is in a range between 4 mm and 8 mm, a width of the suspension plate is in a range between 4 mm and 8 mm, and a thickness of the suspension plate is in a range between 0.1 mm and 0.4 mm;
an outer frame, wherein the suspension plate and the outer frame are connected with each other through at least one bracket; and
a piezoelectric ceramic plate, attached on a first surface of the suspension plate, wherein a length of the piezoelectric ceramic plate is not larger than a length of the suspension plate, the length of the piezoelectric ceramic plate is in a range between 4 mm and 8 mm, a width of the piezoelectric ceramic plate is in a range between 4 mm and 8 mm, a thickness of the piezoelectric ceramic plate is in a range between 0.05 mm and 0.3 mm, and a length/width ratio of the piezoelectric ceramic plate is in a range between 0.5 and 2; and
a gas collecting plate comprising a first perforation, a second perforation, a first pressure-releasing chamber, a first outlet chamber and a fiducial surface, wherein the gas collecting plate further comprises a raised structure corresponding to the first outlet chamber, the raised structure is located at a level higher than the fiducial surface of the gas collecting plate, the first perforation is in communication with the first pressure-releasing chamber, and the second perforation is in communication with the first outlet chamber,
wherein the gas inlet plate, the resonance plate, the piezoelectric actuator and the gas collecting plate are stacked on each other sequentially, and a gap is formed between the resonance plate and the piezoelectric actuator to define a first chamber, wherein when the piezoelectric actuator is driven and after the gas is fed into the miniature fluid control device through the at least one inlet of the gas inlet plate, the gas is sequentially converged to the central cavity through the at least one convergence channel, transferred through the central aperture of the resonance plate, introduced into the first chamber, transferred downwardly through a vacant space between the at least one bracket of the piezoelectric actuator, and exited from the miniature fluid control device; and
a miniature valve device comprising:
a valve plate having a valve opening, wherein a thickness of the valve plate is in a range between 0.1 mm and 0.3 mm, wherein the valve opening of the valve plate is aligned with the raised structure of the gas collecting plate, and the raised structure provides a pre-force to seal the valve opening; and
a gas outlet plate comprising a pressure-releasing perforation, an outlet perforation, a second pressure-releasing chamber, a second outlet chamber, at least one position-limiting structure and a fiducial surface, wherein the fiducial surface of the gas outlet plate is concaved to define the second pressure-releasing chamber and the second outlet chamber, and the pressure-releasing perforation is located at a center of the second pressure-releasing chamber, wherein a convex structure is located beside an end of the pressure-releasing perforation, the convex structure is located at a level higher than the fiducial surface of the gas outlet plate, the outlet perforation is in communication with the second outlet chamber, the at least one position-limiting structure is disposed within the second pressure-releasing chamber, a thickness of the position-limiting structure is in a range between 0.2 mm and 0.5 mm, and the gas outlet plate further comprises a communication channel between the second pressure-releasing chamber and the second outlet chamber,
wherein the gas collecting plate, the valve plate and the gas outlet plate are combined together, the pressure-releasing perforation of the gas outlet plate is aligned with the first perforation of the gas collecting plate, the second pressure-releasing chamber of the gas outlet plate is aligned with the first pressure-releasing chamber of the gas collecting plate, and the second outlet chamber of the gas outlet plate is aligned with the first outlet chamber of the gas collecting plate, wherein the valve plate is arranged between the gas collecting plate and the gas outlet plate for blocking communication between the first pressure-releasing chamber and the second pressure-releasing chamber, and the valve opening of the valve plate is arranged between the second perforation and the outlet perforation, wherein after the gas is downwardly transferred from the miniature fluid control device to the miniature valve device, the gas is introduced into the first pressure-releasing chamber and the first outlet chamber through the first perforation and the second perforation, and the valve plate is quickly contacted with the convex structure of the gas outlet plate to provide a pre-force to tightly close the pressure-releasing perforation, and the gas within the first outlet chamber is further transferred to the outlet perforation through the valve opening of the valve plate, so that a pressure-collecting operation is performed, wherein while a pressure-releasing operation is performed, the gas is transferred from the outlet perforation to the second outlet chamber to move the valve plate, the valve opening of the valve plate is contacted with and closed by the gas collecting plate, the at least one position-limiting structure assists in supporting the valve plate to avoid collapse of the valve plate, the gas is transferred from the second outlet chamber to the second pressure-releasing chamber through the communication channel, the valve plate corresponding to the second pressure-releasing chamber is moved, and the gas is exited from the pressure-releasing perforation.

US Pat. No. 10,364,910

FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A fluid control device, comprising:a piezoelectric actuator comprising a piezoelectric element and a vibration plate, wherein the piezoelectric element is attached on a surface of the vibration plate, the piezoelectric element is subject to deformation in response to an applied voltage, and the vibration plate is subject to a curvy vibration in response to the deformation of the piezoelectric element; and
a deformable substrate comprising a communication plate and a flexible plate stacked on and coupled with the communication plate, wherein the communication plate and the flexible plate are subject to a synchronous deformation to form a synchronously-deformed structure as a whole,
wherein the deformable substrate is combined with and positioned on the vibration plate of the piezoelectric actuator, so that a specified depth is defined between the flexible plate of the deformable substrate and the vibration plate, wherein the flexible plate comprises a movable part corresponding to the vibration plate, and
wherein the communication plate has a central part directly below the movable part of the flexible plate, and the central part of the communication plate is spaced apart from the movable part of the flexible plate, and is synchronously deformable with the movable part of the flexible plate.

US Pat. No. 10,487,821

MINIATURE FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A miniature fluid control device, comprising:a piezoelectric actuator comprising:
a suspension plate, wherein the suspension plate is a square structure, a length of the suspension plate is in a range between 4 mm and 8 mm, and the suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion;
an outer frame arranged around the suspension plate;
at least one bracket connected between the suspension plate and the outer frame for elastically supporting the suspension plate; and
a piezoelectric ceramic plate, wherein the piezoelectric ceramic plate is a square structure, a length of the piezoelectric ceramic plate is not larger than a length of the suspension plate, and the piezoelectric ceramic plate is attached on a first surface of the suspension plate, wherein when a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration; and
a housing comprising:
a gas collecting plate, wherein the gas collecting plate is a frame body with a sidewall, and one surface of the gas collecting plate is concaved to define a gas-collecting chamber, wherein the piezoelectric actuator is accommodated within the gas-collecting chamber; and
a base sealing a bottom of the piezoelectric actuator, and having a central aperture corresponding to the middle portion of the suspension plate, wherein the base is located within a cavity formed and surrounded by the sidewall;
wherein the gas collecting plate comprises a plurality of perforations passing therethrough, wherein when the voltage is applied to the piezoelectric actuator, the suspension plate is permitted to undergo the curvy vibration, the fluid is transferred from the central aperture of the base to the gas-collecting chamber, and exited from the perforations.

US Pat. No. 10,451,051

MINIATURE PNEUMATIC DEVICE

MICROJET TECHNOLOGY CO., ...

1. A miniature pneumatic device, comprising:a miniature fluid control device comprising:
a gas inlet plate comprising at least one inlet, at least one convergence channel and a central cavity, wherein a convergence chamber is defined by the central cavity, wherein after a gas is introduced into the at least one convergence channel through the at least one inlet, the gas is guided by the at least one convergence channel and converged to the convergence chamber;
a resonance plate having a central aperture corresponding to the convergence chamber of the gas inlet plate;
a piezoelectric actuator comprising:
a suspension plate, wherein a length of the suspension plate is in a range between 7.5 mm and 12 mm, a width of the suspension plate is in a range between 7.5 mm and 12 mm, and a thickness of the suspension plate is in a range between 0.1 mm and 0.4 mm;
an outer frame, wherein the suspension plate and the outer frame are connected with each other through at least one bracket; and
a piezoelectric ceramic plate, attached on a first surface of the suspension plate, wherein a length of the piezoelectric ceramic plate is not larger than a length of the suspension plate, the length of the piezoelectric ceramic plate is in a range between 7.5 mm and 12 mm, a width of the piezoelectric ceramic plate is in a range between 7.5 mm and 12 mm, a thickness of the piezoelectric ceramic plate is in a range between 0.05 mm and 0.3 mm, and a length/width ratio of the piezoelectric ceramic plate is in a range between 0.625 and 1.6; and
a gas collecting plate comprising a first perforation, a second perforation, a first pressure-releasing chamber, a first outlet chamber and a fiducial surface, wherein the gas collecting plate further comprises a raised structure corresponding to the first outlet chamber, the raised structure is located at a level higher than the fiducial surface of the gas collecting plate, the first perforation is in communication with the first pressure-releasing chamber, and the second perforation is in communication with the first outlet chamber,
wherein the gas inlet plate, the resonance plate, the piezoelectric actuator and the gas collecting plate are stacked on each other sequentially, and a gap is formed between the resonance plate and the piezoelectric actuator to define a first chamber, wherein when the piezoelectric actuator is driven and after the gas is fed into the miniature fluid control device through the at least one inlet of the gas inlet plate, the gas is sequentially converged to the central cavity through the at least one convergence channel, transferred through the central aperture of the resonance plate, introduced into the first chamber, transferred downwardly through a vacant space between the at least one bracket of the piezoelectric actuator, and exited from the miniature fluid control device; and
a miniature valve device comprising:
a valve plate having a valve opening, wherein a thickness of the valve plate is in a range between 0.1 mm and 0.3 mm, wherein the valve opening of the valve plate is aligned with the raised structure of the gas collecting plate, and the raised structure provides a pre-force to seal the valve opening; and
a gas outlet plate comprising a pressure-releasing perforation, an outlet perforation, a second pressure-releasing chamber, a second outlet chamber, at least one position-limiting structure and a fiducial surface, wherein the fiducial surface of the gas outlet plate is concaved to define the second pressure-releasing chamber and the second outlet chamber, and the pressure-releasing perforation is located at a center of the second pressure-releasing chamber, wherein a convex structure is located beside an end of the pressure-releasing perforation, the convex structure is located at a level higher than the fiducial surface of the gas outlet plate, the outlet perforation is in communication with the second outlet chamber, the at least one position-limiting structure is disposed within the second pressure-releasing chamber, a thickness of the position-limiting structure is in a range between 0.2 mm and 0.5 mm, and the gas outlet plate further comprises a communication channel between the second pressure-releasing chamber and the second outlet chamber,
wherein the gas collecting plate, the valve plate and the gas outlet plate are combined together, the pressure-releasing perforation of the gas outlet plate is aligned with the first perforation of the gas collecting plate, the second pressure-releasing chamber of the gas outlet plate is aligned with the first pressure-releasing chamber of the gas collecting plate, and the second outlet chamber of the gas outlet plate is aligned with the first outlet chamber of the gas collecting plate, wherein the valve plate is arranged between the gas collecting plate and the gas outlet plate for blocking communication between the first pressure-releasing chamber and the second pressure-releasing chamber, and the valve opening of the valve plate is arranged between the second perforation and the outlet perforation, wherein after the gas is downwardly transferred from the miniature fluid control device to the miniature valve device, the gas is introduced into the first pressure-releasing chamber and the first outlet chamber through the first perforation and the second perforation, and the valve plate is quickly contacted with the convex structure of the gas outlet plate to provide a pre-force to tightly close the pressure-releasing perforation, and the gas within the first outlet chamber is further transferred to the outlet perforation through the valve opening of the valve plate, so that a pressure-collecting operation is performed, wherein while a pressure-releasing operation is performed, the gas is transferred from the outlet perforation to the second outlet chamber to move the valve plate, the valve opening of the valve plate is contacted with and closed by the gas collecting plate, the at least one position-limiting structure assists in supporting the valve plate to avoid collapse of the valve plate, the gas is transferred from the second outlet chamber to the second pressure-releasing chamber through the communication channel, the valve plate corresponding to the second pressure-releasing chamber is moved, and the gas is exited from the pressure-releasing perforation.

US Pat. No. 10,408,210

DRIVING CIRCUIT FOR PIEZOELECTRIC PUMP AND CONTROL METHOD THEREOF

MICROJET TECHNOLOGY CO., ...

1. A control method of a driving circuit for controlling a piezoelectric actuator of a piezoelectric pump to move a fluid of a fluid reservoir, the control method comprising steps of:(a) enabling the driving circuit, and outputting a driving voltage from the driving circuit;
(b) implementing a first inhalation adjusting process while the piezoelectric pump performs an inhaling operation, wherein in the first inhalation adjusting process, a fluid pressure of the fluid within the fluid reservoir is detected and a magnitude of the driving voltage is adjusted according to a result of comparing the fluid pressure with a first predetermined inhalation pressure value, so that the fluid pressure is adjusted to the first predetermined inhalation pressure value; and
(c) implementing a first exhalation adjusting process while the piezoelectric pump performs an exhaling operation, wherein in the first exhalation adjusting process, the fluid pressure is detected and the magnitude of the driving voltage is adjusted according to a result of comparing the fluid pressure with a first predetermined exhalation pressure value, the first predetermined exhalation pressure value being determined separately from the first predetermined inhalation pressure value, so that the fluid pressure is adjusted to the first predetermined exhalation pressure value.

US Pat. No. 10,388,849

PIEZOELECTRIC ACTUATOR

MICROJET TECHNOLOGY CO., ...

1. A piezoelectric actuator, comprising:a suspension plate, wherein the suspension plate is a square structure, a length of the suspension plate is in a range between 7.5 mm and 12 mm, and the suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion; an outer frame arranged around the suspension plate;
at least one bracket connected between the suspension plate and the outer frame for elastically supporting the suspension plate; and
a piezoelectric ceramic plate, wherein the piezoelectric ceramic plate is a square structure, a length of the piezoelectric ceramic plate is not larger than a length of the suspension plate, and the piezoelectric ceramic plate is attached on a first surface of the suspension plate, wherein when a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration,
wherein the suspension plate further comprises a bulge, and the bulge is formed on a second surface of the suspension plate.

US Pat. No. 10,382,841

DRIVING AND INFORMATION TRANSMITTING SYSTEM FOR SENSING MODULE

MICROJET TECHNOLOGY CO., ...

1. A driving and information transmitting system for a sensing module, the driving and information transmitting system comprising:a sensing device comprising at least one sensor, a microprocessor, a power controller and a data transceiver;
a power supply device configured to transfer an energy to the power controller, so that the power controller receives the energy and enables the sensor; and
a connection device configured to display, store and transmit an output data,
wherein after a monitored data sensed by the at least one sensor is transmitted to the microprocessor, the monitored data is processed into the output data by the microprocessor, wherein the output data is received by the data transceiver, and the output data is transmitted from the data transceiver to the connection device, wherein a control command from the connection device is received by the data transceiver, and the control command is transmitted to the microprocessor to control the sensor to perform a sensing operation, and the connection device is connected with a notification processing system and/or a notification processing device, so as to enable an air quality notification mechanism by the notification processing system and/or enable an air quality processing mechanism by the notification processing device.

US Pat. No. 10,371,136

MINIATURE PNEUMATIC DEVICE

MICROJET TECHNOLOGY CO., ...

1. A miniature pneumatic device, comprising:a miniature fluid control device comprising a gas inlet plate, a resonance plate, a piezoelectric actuator and a gas collecting plate with a peripheral wall, wherein the gas inlet plate, the resonance plate, the piezoelectric actuator and the gas collecting plate are stacked on each other sequentially such that the gas inlet plate, the resonance plate and the piezoelectric actuator are located within a cavity formed by the peripheral wall, and the piezoelectric actuator comprises a suspension plate, wherein a length of the suspension plate is in a range between 4 mm and 8 mm, a width of the suspension plate is in a range between 4 mm and 8 mm, a thickness of the suspension plate is in a range between 0.1 mm and 0.4 mm, and a gap g0 is formed between the resonance plate and the piezoelectric actuator to define a first chamber, wherein a difference x between the gap g0 and a vibration displacement d of the piezoelectric actuator is given by a formula: x=g0?d, and an output pressure of the gas is generated when x=1 ?m to 5 ?m, wherein after the gas is fed into the miniature fluid control device through the gas inlet plate, the gas is transferred through the resonance plate, introduced into the first chamber, and exited from the miniature fluid control device; and
a miniature valve device comprising a valve plate and a gas outlet plate, wherein the valve plate has a valve opening, and the gas collecting plate, the valve plate and the gas outlet plate are combined together, wherein after the gas is transferred from the miniature fluid control device to the miniature valve device, a pressure-collecting operation or a pressure-releasing operation is selectively performed,
wherein the suspension plate further comprises a bulge, and the bulge is formed on a surface of the suspension plate that faces the resonance plate, wherein the bulge is a circular convex structure, and a diameter of the bulge is 0.55 times as large as a short side length of the suspension plate.

US Pat. No. 10,656,436

GLASSES WITH WEARING CUSHION DEVICE

MICROJET TECHNOLOGY CO., ...

1. A pair of glasses with a wearing cushion device, the glasses comprising:a main body comprising at least one temple;
at least one inflatable cushion disposed on a surface of the at least one temple;
an air pump in communication with the at least one inflatable cushion;
a switch element;
a control unit electrically connected with the switch element and the air pump;
an air channel embedded within the main body and in communication with the at least one inflatable cushion and the air pump; and
a pressure valve structure embedded within the main body and in communication with the air channel, and the pressure valve structure is electrically connected with the control unit,
wherein when the switch element is turned on, the switch element issues an enabling signal to the control unit and the control unit enables the air pump in response to the enabling signal, wherein when the air pump is enabled, an ambient gas is transferred to the at least one inflatable cushion through the air channel, so that the at least one inflatable cushion is inflated with the gas and expanded, wherein the pressure valve structure is a switchable valve structure comprising a check valve and a relief valve, the check valve allows the gas in the air channel to flow in only one direction without backflow, and the relief valve adjusts a pressure of the gas in the air channel, wherein when the air pump is enabled by the control unit in response to the enabling signal, the gas in the air channel is transferred in one direction by the check valve of the pressure valve structure.

US Pat. No. 10,424,560

THREE-DIMENSIONAL INTEGRATED CIRCUIT COOLING SYSTEM

MICROJET TECHNOLOGY CO., ...

1. A three-dimensional integrated circuit cooling system for removing heat from a three-dimensional integrated circuit, wherein the three-dimensional integrated circuit comprises a main chip layer, plural middle chip layers and plural fluid microchannels, wherein the main chip layer and the plural middle chip layers are stacked on each other while every two neighboring middle chip layers are in electrical communication through plural leads, and the main chip layer and the neighboring middle chip layer are in electrical communication through plural leads, wherein the plural fluid microchannels are formed between every two neighboring middle chip layers, and formed between the main chip layer and the neighboring middle chip layer, the three-dimensional integrated circuit cooling system comprising:a base located beside the three-dimensional integrated circuit and having an introduction opening, a discharge opening and a fluid passage;
a casing having an inlet and an accommodation space, wherein the casing encapsulates the three-dimensional integrated circuit, the three-dimensional integrated circuit is disposed within the accommodation space, the inlet is disposed corresponding to the discharge opening, and the inlet is in communication with the discharge opening;
a fluid pump fixed on the base and sealing the edge of the introduction opening; and
a fluid storage configured to store a fluid, enclosing the fluid pump and in communication with the fluid pump;
wherein when the fluid pump is enabled, the fluid stored in the fluid storage is introduced into the fluid passage through the introduction opening, and guided into the accommodation space of the casing through the discharge opening and the inlet of the casing, then the fluid passes along each of the fluid microchannels of the three-dimensional integrated circuit as flowing through the plural middle chip layers and the main chip layer, so as to perform heat exchange between the fluid and any of the plural middle chip layers and heat exchange between the fluid and the main chip layer, wherein when the fluid pump stops operating, the heated fluid flows back into the fluid storage.

US Pat. No. 10,415,561

EYEGLASS BUFFER PROTECTION DEVICE

MICROJET TECHNOLOGY CO., ...

1. An eyeglass buffer protection device for using in a pair of glasses by detachably covering on at least one leg of the glasses, the eyeglass buffer protection device comprising:a main body with a penetrating channel and comprising:
an inflatable cushion having an expandable structure;
an air pump in communication with the inflatable cushion;
a switch element; and
a control unit electrically connected with the switch element and the air pump;
wherein when the switch element is turned on, the switch element issues an enabling signal to the control unit, and the control unit enables the air pump in response to the enabling signal to make the air pump transfer an ambient gas to the inflatable cushion, so that the inflatable cushion is inflated with the gas and the main body is expanded, by penetrating the at least one leg of the glasses into the penetrating channel of the main body, the at least one leg is protected, and the main body fits closely with the ear of the user.

US Pat. No. 10,385,838

MINIATURE FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A miniature fluid control device for a miniature pneumatic device, comprising:a gas inlet plate;
a resonance plate; and
a piezoelectric actuator comprising a suspension plate, wherein a length of the suspension plate is in a range between 4 mm and 8 mm, a width of the suspension plate is in a range between 4 mm and 8 mm, and a thickness of the suspension plate is in a range between 0.1 mm and 0.4 mm;
wherein the gas inlet plate, the resonance plate and the piezoelectric actuator are stacked on each other sequentially, and a gap is formed between the resonance plate and the piezoelectric actuator to define a first chamber, wherein when the piezoelectric actuator is driven and after the gas is fed into the miniature fluid control device through the gas inlet plate, the gas is transferred through the resonance plate, introduced into the first chamber, and exited from the miniature fluid control device, and
wherein the suspension plate further comprises a bulge, the bulge is formed on a surface of the suspension plate that faces the resonance plate, the bulge is a circular convex structure, and a diameter of the bulge is 0.55 times as large as a short side length of the suspension plate.

US Pat. No. 10,350,892

MANUFACTURING METHOD OF FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A manufacturing method of a fluid control device, comprising:(a) providing a housing, a piezoelectric actuator and a deformable substrate, wherein the piezoelectric actuator comprises a piezoelectric element and a vibration plate, and the deformable substrate comprises a flexible plate and a communication plate, wherein the vibration plate has a first surface and an opposing second surface, a bulge is formed on the second surface of the vibration plate, and the flexible plate comprises a movable part;
(b) stacking and coupling the flexible plate and the communication plate of the deformable substrate, and implementing a preformed synchronous deformation process by applying at least one external force to an exterior portion of the deformable substrate to form a preformed synchronously-deformed structure defined by the flexible plate and the communication plate collaboratively, wherein a force-exerting mark is formed on a surface of the preformed synchronously-deformed structure where the at least one external force is applied; and
(c) coupling the housing, the piezoelectric actuator and the deformable substrate which are sequentially stacked, wherein the preformed synchronously-deformed structure of the deformable substrate is aligned with the bulge of the vibration plate to define a specified depth between the movable part of the flexible plate and the bulge of the vibration plate.

US Pat. No. 10,615,329

PIEZOELECTRIC ACTUATOR

MICROJET TECHNOLOGY CO., ...

1. A piezoelectric actuator, comprising:a suspension plate, wherein the suspension plate is a square structure and comprises a bulge formed on a second surface of the suspension plate, a length of the suspension plate is in a range between 4 mm and 8 mm, and the suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion;
a piezoelectric ceramic plate, wherein the piezoelectric ceramic plate is a square structure, a length of the piezoelectric ceramic plate is not larger than a length of the suspension plate, and the piezoelectric ceramic plate is attached on a first surface of the suspension plate, wherein when a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration; an outer frame arranged around the suspension plate; and
at least one bracket connected between the suspension plate and the outer frame for elastically supporting the suspension plate, wherein the bracket comprises:
an intermediate part formed in a vacant space between the suspension plate and the outer frame and in parallel with the outer frame and the suspension plate;
a first connecting part arranged between the intermediate part and the suspension plate; and
a second connecting part arranged between the intermediate part and the outer frame, wherein the first connecting part and the second connecting part are opposed to each other and arranged along the same horizontal line.

US Pat. No. 10,598,169

FLUID TRANSPORTATION DEVICE COMPRISING A VALVE BODY, A VALVE MEMBRANE, A VALVE CHAMBER SEAT, AND AN ACTUATOR EACH SEQUENTIALLY STACKED WITHIN A ACCOMMODATION SPACE OF AN OUTER SLEEVE HAVING A RING-SHAPED PROTRUSION STRUCTURE

MICROJET TECHNOLOGY CO., ...

1. A fluid transportation device, comprising:a valve body comprising an inlet passage, an outlet passage, a first surface and a second surface, wherein the inlet passage and the outlet passage run through the first surface and the second surface, an inlet opening is formed in the second surface and in communication with the inlet passage, an outlet opening is formed in the second surface and in communication with the outlet passage, and a coupling structure is concavely formed in the first surface of the valve body;
a valve membrane comprising two valve plates, plural extension parts and plural hollow parts, wherein the two valve plates have the same thickness, the plural extension parts are arranged around the valve plates for elastically supporting the valve plates, and the hollow parts are arranged between the extension parts;
a valve chamber seat comprising a third surface, a fourth surface, an inlet valve channel, an outlet valve channel and a pressure chamber, wherein the inlet valve channel and the outlet valve channel run through the third surface and the fourth surface, the two valve plates are respectively supported on the inlet valve channel and the outlet valve channel so as to form a valve structure, the pressure chamber is concavely formed in the fourth surface, and in communication with the inlet valve channel and the outlet valve channel;
an actuator, wherein the pressure chamber of the valve chamber seat is covered by the actuator; and
an outer sleeve, wherein an accommodation space is defined by an inner wall of the outer sleeve, a ring-shaped protrusion structure is formed on the inner wall of the outer sleeve, and plural engaging structures are discretely arranged on a periphery of the outer sleeve at regular intervals,
wherein the valve body, the valve chamber seat and the actuator are sequentially stacked on each other, accommodated within the accommodation space of the outer sleeve, and supported on the ring-shaped protrusion structure, wherein the plural engaging structures of the outer sleeve are engaged with the coupling structure of the valve body so as to form the fluid transportation device.

US Pat. No. 10,529,911

PIEZOELECTRIC ACTUATOR

MICROJET TECHNOLOGY CO., ...

1. A piezoelectric actuator, comprising:a suspension plate, wherein the suspension plate is a square structure, and the suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion;
a piezoelectric ceramic plate, wherein the piezoelectric ceramic plate is a square structure, a length of the piezoelectric ceramic plate is not larger than a length of the suspension plate, and the piezoelectric ceramic plate is attached on a first surface of the suspension plate, wherein when a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration;
an outer frame arranged around the suspension plate; and
at least one bracket connected between the suspension plate and the outer frame for elastically supporting the suspension plate, wherein the bracket comprises:
an intermediate part formed in a vacant space between the suspension plate and the outer frame and in parallel with the outer frame and the suspension plate;
a first connecting part arranged between the intermediate part and the suspension plate; and
a second connecting part arranged between the intermediate part and the outer frame, wherein the first connecting part and the second connecting part are opposed to each other and arranged along the same horizontal line,
wherein the suspension plate further comprises a bulge, and the bulge is formed on a second surface of the suspension plate.

US Pat. No. 10,473,956

GLASSES WITH WEARING CUSHION DEVICE

MICROJET TECHNOLOGY CO., ...

1. A pair of glasses with a wearing cushion device, the glasses comprising:a main body comprising a frame and two legs;
an inflatable cushion system comprising:
two supporting cushions disposed on the frame of the main body and corresponding to the bridge of the nose; and
two buffer cushions respectively disposed on the two legs;
an air pump;
a switch element;
a control unit electrically connected with the switch element and the air pump; and
an air channel in communication with the two supporting cushions, the two buffer cushions and the air pump,
wherein when the switch element is turned on, the switch element issues an enabling signal to the control unit and the control unit enables the air pump in response to the enabling signal, wherein when the air pump is enabled, an ambient gas is transferred to the two supporting cushions and the two buffer cushions through the air channel, by which the two supporting cushions and the two buffer cushions are inflated with the gas and expanded, so as to fit closely on the ears of the user by the two buffer cushions and fit closely on the bridge of the nose of the user by the two supporting cushions, and the position of the main body are adjusted.

US Pat. No. 10,359,036

FLUID TRANSPORTATION DEVICE

MICROJET TECHNOLOGY CO., ...

1. A fluid transportation device, comprising:a valve cover comprising a first opening and a second opening, wherein a bottom edge of the valve cover has a chamfer;
a valve body comprising an inlet passage, an outlet passage, a first surface and a second surface, wherein a first protrusion platform is protruding from the second surface so that a first coupling plane is concavely formed on the second surface, the inlet passage and the outlet passage run through the first surface and the second surface, an inlet opening is formed on the second surface and in communication with the inlet passage, and an outlet opening is formed on the second surface and in communication with the outlet passage;
a valve membrane comprising two valve plates with the same thickness, plural extension parts disposed around each of the valve plates for elastically supporting the valve plates, and a hollow part formed between each two adjacent extension parts;
a first gasket attached on the first coupling plane to be arranged between the valve body and the valve membrane, the first gasket having a first perforation corresponding to the inlet opening;
a valve chamber seat comprising a third surface, a fourth surface, an inlet valve channel and an outlet valve channel, wherein a second protrusion platform is protruding from the third surface so that a second coupling plane is concavely formed on the third surface, the inlet valve channel and the outlet valve channel run through the third surface and the fourth surface, the two valve plates of the valve membrane are respectively supported by the inlet valve channel and the outlet valve channel to form two valve structures thereon, a pressure chamber is concavely formed on the fourth surface, and the pressure chamber is in communication with the inlet valve channel and the outlet valve channel;
a second gasket attached on the second coupling plane to be arranged between the valve membrane and the valve chamber seat, the second gasket having a second perforation corresponding to the outlet opening of the valve body;
an actuator covering and sealing the pressure chamber of the valve chamber seat; and
an outer sleeve comprising an inner wall, an accommodation space surrounded by the inner wall, and an annular protrusion structure formed on the bottom of the inner wall,
wherein the valve body, the first gasket, the valve membrane, the second gasket, the valve chamber seat and the actuator are sequentially stacked and corresponding to each other and accommodated within the accommodation space of the outer sleeve and supported by the annular protrusion structure of the outer sleeve, wherein the inlet passage and the outlet passage of the valve body are respectively penetrating through the first opening and the second opening of the valve cover, and the valve cover is introduced into the accommodation space of the outer sleeve by the chamfer thereof to be tightly fitted with the inner wall of the outer sleeve and to be assembled with the valve body, the first gasket, the valve membrane, the second gasket, the valve chamber seat and the actuator which are sequentially stacked so that the valve cover, the valve body, the first gasket, the valve membrane, the second gasket, the valve chamber seat and the actuator are positioned.

US Pat. No. 10,487,820

MINIATURE PNEUMATIC DEVICE

MICROJET TECHNOLOGY CO., ...

1. A miniature pneumatic device, comprising:a miniature fluid control device comprising:
a gas inlet plate comprising at least one inlet, at least one convergence channel and a central cavity, wherein a convergence chamber is defined by the central cavity, wherein after a gas is introduced into the at least one convergence channel through the at least one inlet, the gas is guided by the at least one convergence channel and converged to the convergence chamber;
a resonance plate having a central aperture corresponding to the convergence chamber of the gas inlet plate;
a piezoelectric actuator comprising a suspension plate, an outer frame and a piezoelectric ceramic plate, wherein the suspension plate and the outer frame are connected with each other through at least one bracket, and the piezoelectric ceramic plate is attached on a first surface of the suspension plate; and
a gas collecting plate comprising a first perforation, a second perforation, a first pressure-releasing chamber, a first outlet chamber and a fiducial surface, wherein the gas collecting plate further comprises a raised structure corresponding to the first outlet chamber, the raised structure is located at a level higher than the fiducial surface of the gas collecting plate, the first perforation is in communication with the first pressure-releasing chamber, and the second perforation is in communication with the first outlet chamber,
wherein the gas inlet plate, the resonance plate, the piezoelectric actuator and the gas collecting plate are stacked on each other sequentially, and a gap g0 is formed between the resonance plate and the piezoelectric actuator to define a first chamber, wherein a difference x between the gap g0 and a vibration displacement d of the piezoelectric actuator is given by a formula: x=g0?d, and an output pressure of the gas is generated when x=1 ?m to 5 ?m, wherein after the gas is fed into the miniature fluid control device through the at least one inlet of the gas inlet plate, the gas is sequentially converged to the central cavity through the at least one convergence channel, transferred through the central aperture of the resonance plate, introduced into the first chamber, transferred downwardly through a vacant space between the at least one bracket of the piezoelectric actuator, and exited from the miniature fluid control device; and
a miniature valve device comprising:
a valve plate having a valve opening, wherein a thickness of the valve plate is in a range between 0.1 mm and 0.3 mm; and
a gas outlet plate comprising a pressure-releasing perforation, an outlet perforation, a second pressure-releasing chamber, a second outlet chamber, at least one position-limiting structure and a fiducial surface, wherein a convex structure is located beside an end of the pressure-releasing perforation, the convex structure is located at a level higher than the fiducial surface of the gas outlet plate, the outlet perforation is in communication with the second outlet chamber, the at least one position-limiting structure is disposed within the second pressure-releasing chamber, a thickness of the position-limiting structure is in a range between 0.2 mm and 0.5 mm, and the gas outlet plate further comprises a communication channel between the second pressure-releasing chamber and the second outlet chamber,
wherein the gas collecting plate, the valve plate and the gas outlet plate are combined together, the pressure-releasing perforation of the gas outlet plate is aligned with the first perforation of the gas collecting plate, the second pressure-releasing chamber of the gas outlet plate is aligned with the first pressure-releasing chamber of the gas collecting plate, and the second outlet chamber of the gas outlet plate is aligned with the first outlet chamber of the gas collecting plate, wherein the valve plate is arranged between the gas collecting plate and the gas outlet plate for blocking communication between the first pressure-releasing chamber and the second pressure-releasing chamber, and the valve opening of the valve plate is arranged between the second perforation and the outlet perforation, wherein after the gas is downwardly transferred from the miniature fluid control device to the miniature valve device, the gas is introduced into the first pressure-releasing chamber and the first outlet chamber through the first perforation and the second perforation, and the valve plate is quickly contacted with the convex structure of the gas outlet plate to provide a pre-force to tightly close the pressure-releasing perforation, and the gas within the first outlet chamber is further transferred to the outlet perforation through the valve opening of the valve plate, so that a pressure-collecting operation is performed, wherein while a pressure-releasing operation is performed, the gas is transferred from the outlet perforation to the second outlet chamber to move the valve plate, the valve opening of the valve plate is contacted with and closed by the gas collecting plate, the at least one position-limiting structure assists in supporting the valve plate to avoid collapse of the valve plate, the gas is transferred from the second outlet chamber to the second pressure-releasing chamber through the communication channel, the valve plate corresponding to the second pressure-releasing chamber is moved, and the gas is exited from the pressure-releasing perforation.

US Pat. No. 10,356,941

AIR-COOLING HEAT DISSIPATION DEVICE

MICROJET TECHNOLOGY CO., ...

1. An air-cooling heat dissipation device for removing heat from an electronic component, the air-cooling heat dissipation device comprising:a base located beside the electronic component, and comprising an introduction opening and a discharge opening;
a swirling-airflow heatsink attached on the electronic component, and comprising a swirl-shaped conductive line and a thermal conduction plate placed over the conductive line, so that a swirling passage is defined by the conductive line and the thermal conduction plate collaboratively, wherein the thermal conduction plate has a vent corresponding to a middle region of the swirling passage;
an air pump fixed on the base and sealing the edge of the introduction opening by which an airflow-guiding chamber is defined by the air pump and the base collaboratively; and
a passage connector connected between the discharge opening of the base and the swirling passage of the swirling-airflow heatsink,
wherein when the air pump is enabled, an ambient air is driven by the air pump and introduced into the airflow-guiding chamber of the base and transferred to the swirling passage of the swirling-airflow heatsink through the discharge opening and the passage connector, so that a fast swirling air flow is produced to remove heat from the electronic component, after which the heated air flow is discharged through the vent of the swirling-airflow heatsink.

US Pat. No. 10,655,620

MINIATURE FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A miniature fluid control device for use with a miniature pneumatic device, the miniature fluid control device comprising:a gas inlet plate comprising at least one inlet, at least one convergence channel and a central cavity, wherein a convergence chamber is defined by the central cavity, wherein after a gas is introduced into the at least one convergence channel through the at least one inlet, the gas is guided by the at least one convergence channel and converged to the convergence chamber;
a resonance plate having a central aperture corresponding to the convergence chamber of the gas inlet plate; and
a piezoelectric actuator comprising a suspension plate, an outer frame and a piezoelectric ceramic plate, wherein a length of the suspension plate is in a range between 2 mm and 4.5 mm, a width of the suspension plate is in a range between 2 mm and 4.5 mm, and a thickness of the suspension plate is in a range between 0.1 mm and 0.3 mm, wherein the outer frame comprises at least one bracket, and the suspension plate and the outer frame are connected with each other through the at least one bracket, wherein the piezoelectric ceramic plate is attached on a first surface of the suspension plate, a length of the piezoelectric ceramic plate is equal to or less than a length of the suspension plate, the length of the piezoelectric ceramic plate is in a range between 2 mm and 4.5 mm, a width of the piezoelectric ceramic plate is in a range between 2 mm and 4.5 mm, a thickness of the piezoelectric ceramic plate is in a range between 0.05 mm and 0.3 mm, and a length/width ratio of the piezoelectric ceramic plate is in a range between 0.44 and 2.25,
wherein the gas inlet plate, the resonance plate and the piezoelectric actuator are stacked on each other sequentially, and a gap is formed between the resonance plate and the piezoelectric actuator to define a first chamber, wherein when the piezoelectric actuator is actuated, the gas is fed into the miniature fluid control device through the at least one inlet of the gas inlet plate, converged to the central cavity through the at least one convergence channel, transferred through the central aperture of the resonance plate, introduced into the first chamber, transferred downwardly through a vacant space between the at least one bracket of the piezoelectric actuator, and exited from the miniature fluid control device.

US Pat. No. 10,644,221

PIEZOELECTRIC ACTUATOR ELECTRODE ARRANGEMENT

MICROJET TECHNOLOGY CO., ...

1. An actuator comprising:a suspension plate having a first surface and a second surface and being capable of bending and vibrating;
an outer frame arranged around a periphery of the suspension plate;
at least one bracket connected between the suspension plate and the outer frame for elastically supporting the suspension plate; and
a piezoelectric plate having a first electrode and a second electrode made of silver palladium alloy doped with graphene, wherein the first electrode is coated with a conducting layer made of a graphene-doped paint, the second electrode is coated with an adhesive layer made of a graphene-doped epoxy glue, the adhesive layer is configured to attach and in adhesion with the first surface of the suspension plate, and a voltage is applied to the first electrode and the second electrode to make the suspension plate bend and vibrate.

US Pat. No. 10,620,106

PARTICULATE MATTER MEASURING DEVICE

MICROJET TECHNOLOGY CO., ...

1. A particulate matter measuring device used for measuring a concentration of suspended particles in air, comprising:a gas transporting actuator comprises a gas outlet;
a micro particle sensor disposed corresponding in position to the gas outlet of the gas transporting actuator and comprising a first surface, wherein the first surface faces the gas outlet of the gas transporting actuator; and
a laser module disposed between the gas transporting actuator and the micro particle sensor, wherein the laser module is configured to emit a laser beam between the gas transporting actuator and the micro particle sensor,
wherein the air flowing between the gas transporting actuator and the micro particle sensor is irradiated by the laser beam and the micro particle sensor analyzes sizes of the suspended particles in the air to calculate the concentration of the suspended particles in the air.

US Pat. No. 10,619,631

MINIATURE PNEUMATIC DEVICE

MICROJET TECHNOLOGY CO., ...

1. A miniature pneumatic device, comprising:a miniature fluid control device comprising:
a gas inlet plate;
a resonance plate having a central aperture;
a piezoelectric actuator;
a gas collecting plate comprising a concave plane, a datum plane, a first perforation and a second perforation, wherein the concave plane is concaved to form a gas-collecting chamber, the datum plane is concaved to form a first pressure-releasing chamber and a first outlet chamber, the first pressure-releasing chamber is in communication with the gas-collecting chamber through the first perforation, and the first outlet chamber is in communication with the gas-collecting chamber through the second perforation,
wherein the gas inlet plate, the resonance plate, the piezoelectric actuator and the gas collecting plate are stacked on each other sequentially, and a gap is formed between the resonance plate and the piezoelectric actuator to define a first chamber, wherein when the piezoelectric actuator is actuated, the gas is fed into the miniature fluid control device through the gas inlet plate, transferred through the resonance plate, and introduced into the first chamber; and
a miniature valve device positioned on the gas collecting plate of the miniature fluid control device, wherein the miniature valve device comprises:
a valve film comprising a first surface, a second surface and a valve opening, wherein the valve opening penetrates through the first surface and the second surface, and each of the first surface and the second surface comprises a sticking area and a plurality of non-sticking areas; and
a gas outlet plate comprising a datum plane and a second surface, wherein a pressure-releasing perforation and an outlet perforation are respectively formed on the second surface of the gas outlet plate and penetrate through the datum plane of the gas outlet plate, the datum plane of the gas outlet plate is concaved to form a second pressure-releasing chamber and a second outlet chamber, the pressure-releasing perforation is located at a center of the second pressure-releasing chamber, the outlet perforation is in communication with the second outlet chamber, and the gas outlet plate further comprises a communication channel between the second pressure-releasing chamber and the second outlet chamber,
wherein the valve film and the gas outlet plate are sequentially stacked on the gas collecting plate, an area of the gas outlet plate is smaller than an area of the gas collecting plate in order to shrink four edges of the gas outlet plate to maintain an adhesive-coating space formed between four edges of the gas outlet plate and the gas collecting plate, a sealing adhesive is filled in the adhesive-coating space to completely seal a periphery region of the valve film, and the valve film is positioned between the gas outlet plate and the gas collecting plate through the sticking areas of the first surface and the second surface, wherein a gas is transferred from the miniature fluid control device to the miniature valve device, so that a pressure-collecting operation or a pressure-releasing operation is selectively performed.

US Pat. No. 10,584,695

MINIATURE FLUID CONTROL DEVICE

MICROJET TECHNOLOGY CO., ...

1. A miniature fluid control device, comprising:a piezoelectric actuator comprising:
a suspension plate, wherein the suspension plate is a square structure, the length of the suspension plate is in a range between 7.5 mm and 12 mm, and the suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion;
an outer frame arranged around the suspension plate;
at least one bracket connected between the suspension plate and the outer frame for elastically supporting the suspension plate; and
a piezoelectric ceramic plate, wherein the piezoelectric ceramic plate is a square structure, a length of the piezoelectric ceramic plate is not larger than a length of the suspension plate, and the piezoelectric ceramic plate is attached on a first surface of the suspension plate, wherein when a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration; and
a housing comprising:
a gas collecting plate, wherein the gas collecting plate is a frame body with a sidewall, and one surface of the gas collecting plate is concaved to define a gas-collecting chamber, wherein the piezoelectric actuator is accommodated within the gas-collecting chamber; and
a base sealing a bottom of the piezoelectric actuator, and having a central aperture corresponding to the middle portion of the suspension plate;
wherein the gas collecting plate comprises a plurality of perforations passing therethrough, wherein when the voltage is applied to the piezoelectric actuator, the suspension plate is permitted to undergo the curvy vibration, the fluid is transferred from the central aperture of the base to the gas-collecting chamber, and exited from the perforations.