US Pat. No. 9,295,111

MICROWAVE OVEN

MIDEA GROUP CO., LTD, Fo...

1. A microwave oven, comprising:
an oven door, a heating chamber, and a magnetron, the oven door being installed in the front of the heating chamber, the heating
chamber including a back wall,

a plurality of identical protrusions being disposed in a rectangular matrix on the back wall, wherein two of the plurality
of identical protrusions disposed adjacent to each other tightly contact each other without any space between them,

each of the protrusions having a shape of a regular pyramid with four triangle reflecting surfaces meeting at one point towards
an inside of the heating chamber, and

each of the reflecting surfaces being configured to reflect a microwave emitted by the magnetron.

US Pat. No. 9,918,357

FIXING MEMBER, COOKING RANGE AND OVEN WITH THE SAME

GUANGDONG MIDEA KITCHEN A...

1. A fixing member, comprising:
a base plate defining a mounting hole;
a connecting plate comprising a first plate segment connected at a first side of the base plate, a second plate segment, and
a third plate segment substantially parallel to the base plate, the second plate segment being connected between the first
and third plate segments; and

a fixing plate defining a first end connected at a second side of the base plate and perpendicular to the base plate, and
a second end having a snapping tongue bent and extended in a direction away from the connecting plate, a vertical distance
between a free end of the snapping tongue and the base plate being equal to or smaller than that between the third plate segment
and the base plate;

wherein a notch is formed at a free end of the third plate segment at a position corresponding to the snapping tongue.

US Pat. No. 9,918,358

MICROWAVE COOKING DEVICE

GUANGDONG MIDEA KITCHEN A...

1. A microwave oven, comprising:
a shell defining a cooling air inlet and a cooling air outlet therein;
a compartment defining a cavity, nested in the shell and defining an open front end, a receiving space being defined between
a rear plate of the compartment and a rear plate of the shell, an air intake duct being formed between a side plate of the
shell and a side plate of the compartment and communicated with the cooling air inlet;

a first electric member and a second electric member disposed in the receiving space respectively; and
a fan disposed in the receiving space, defining a first air inlet, a second air inlet opposite to the first air inlet, a first
air outlet communicated with the first air inlet to define a first air blowing channel, and a second air outlet communicated
with the second air inlet to define a second air blowing channel, the first air blowing channel being disposed independently
of the second air blowing channel, the fan being configured to cool the first electric member via the first air blowing channel
and to cool the second electric member via the second air blowing channel;

a compartment air inlet formed in the rear plate of the compartment, a compartment air outlet formed in the compartment, and
wherein the microwave oven further comprises a front air guiding plate defining an end adjacent to and opposite to the first
air outlet, and extending in a direction away from the first air outlet, a first air duct is formed between the front air
guiding plate and the rear plate of the compartment and communicated with the compartment air inlet, and a second air duct
is formed behind the front air guiding plate and opposite to the first electric member.

US Pat. No. 9,375,120

DUST COLLECTOR FOR CLEANER

Jiangsu Midea Cleaning Ap...

1. A dust collector for a cleaner, comprising:
a dust container defining an air inlet in a bottom wall thereof;
a cyclone separator disposed in the dust container and defining a cyclone separator inlet communicated with the air inlet
and a cyclone separator outlet;

a dust container top cover covering the dust container and defining an air outlet communicated with the cyclone separator
outlet;

an air intake tube defining two ends communicated with the air inlet and the cyclone separator inlet respectively and being
engaged with the dust container;

wherein the cyclone separator comprises:
a cyclone barrel defining an upper open end, the cyclone separator inlet being formed in a bottom wall of the cyclone barrel,
an air guide plate and an air shield plate being disposed in the cyclone barrel, and at least a part of the air guide plate
being extended upwardly and spirally;

a cyclone separator end cover disposed above the cyclone barrel, the cyclone separator outlet being formed in the cyclone
separator end cover, in which an upper end of the dust container is open, and the cyclone separator end cover covers the upper
end of the dust container;

a filter defining an upper end communicated with the cyclone separator outlet, and a lower end extended into the cyclone barrel;
an air guide barrel defining a lower end communicated with the cyclone separator inlet and an upper closed end, and defining
an air vent in a side wall of the air guide barrel communicated with the cyclone barrel,

the air shield plate being disposed above the air vent and no higher than an upper edge of the air guide plate;
wherein the air guide plate is annular and comprises:
first and second plate bodies perpendicular to an axis of the cyclone barrel respectively;
a spiral plate extended spirally in an up-down direction, and defining two ends connected to the first and second plate bodies
respectively;

a connection plate parallel to an axis of the cyclone separator, and defining two ends connected to the first and second plate
bodies respectively.

US Pat. No. 9,353,969

WATER TANK AND HEAT PUMP WATER HEATER COMPRISING THE SAME

MIDEA GROUP CO., LTD., F...

1. A water tank, comprising:
an inner tank; and
a condenser disposed on the inner tank for heating water contained therein, having:
a liquid inlet tube defining a first end and a second end;
a liquid outlet tube defining a first end and a second end;
a first condensing tube wound around an outer wall of an upper part of the inner tank, a first end of the first condensing
tube being communicated with the second end of the liquid inlet tube;

a second condensing tube wound around an outer wall of the lower part of the inner tank, a first end of the second condensing
tube being communicated with the second end of the liquid inlet tube; and

a third condensing tube wound around an outer wall of a bottom part of the inner tank beneath the lower part, a first end
of the third condensing tube being communicated with second ends of the first and second condensing tubes respectively, a
second end of the third condensing tube being communicated with a first end of the liquid outlet tube;

wherein the first condensing tube, the second condensing tube, and the third condensing tube are communicated via a T-junction.

US Pat. No. 9,055,838

PORTABLE SLOW COOKER

Midea Group Co., Ltd., (...

1. A portable slow cooker, comprising
a cooking body,
a liner container disposed within the cooking body,
a lid disposed on an opening of the liner container, and
a handle, wherein:
the handle is spanned over the lid and has lower ends in vertically slidable cooperation with handle boxes disposed at a side
surface of the cooking body;

the handle is locked by the handle boxes when the handle slides to a lowest position, so as to press the lid to form a sealing
engagement with the liner container;

each lower end of the handle is provided with a lock catch, and the handle box is provided with a flexible pressing buckle
that is matched with the lock catch to lock the handle at the lowest position; and

each of the handle boxes comprises a box base, a box lid, a positioning buckle and a trigger, wherein:
a spring installed within each handle box is provided as a restoring mechanism, the box lid being mounted on the box base;
and

the trigger is rotatably connected to the handle box, the positioning buckle is rotatably connected to the trigger, and each
lower end of the handle is rotatably connected to a slider sliding within the box base.

US Pat. No. 9,516,988

WATER SPRAYING APPARATUS OF DISHWASHER AND DISHWASHER COMPRISING THE SAME

Foshan Shunde Midea Washi...

1. A water spraying apparatus of a dishwasher comprising:
a water source connecting pipe having a water outlet tube,
a spraying arm having a water inlet tube, and
a connecting device connecting the water source connecting pipe with the spraying arm, wherein the connecting device comprises
first and second semicircular fitting rings which are adapted to snap-fit with each other to form a connecting ring, the connecting
ring is rotatably fitted over the water outlet tube of the water source connecting pipe and positioned in an axial direction
of the connecting ring between the water inlet tube of the spraying arm and the water outlet tube of the water source connecting
pipe;

wherein the first semicircular fitting ring is provided with a first snapping tongue and a first backstop rib, and the second
semicircular fitting ring is provided with a second snapping tongue snap-fitted with the first backstop rib and a second backstop
rib snap-fitted with the first snapping tongue;

wherein the first snapping tongue is disposed on a peripheral surface of the first semicircular fitting ring and adjacent
to an engaging surface of the first semicircular fitting ring with the second semicircular fitting ring, and the second snapping
tongue is disposed on a peripheral surface of the second semicircular fitting ring and adjacent to an engaging surface of
the second semicircular fitting ring with the first semicircular fitting ring.

US Pat. No. 9,565,983

CYCLONIC SEPARATING DEVICE, CLEANER, SURFACE CLEANING APPARATUS AND CYCLONIC SEPARATING METHOD

JIANGSU MIDEA CLEANING AP...

1. A cyclonic separating device, comprising:
a first cyclonic separator defining a first longitudinal axis, the first cyclonic separator having one or more walls defining
an interior separating space;

a plurality of second cyclonic separators located downstream of the first cyclonic separator, arranged circumferentially around
the first longitudinal axis in parallel, and integrally received in the first cyclonic separator such that the plurality of
second cyclonic separators are located wholly within the interior separating space of the first cyclonic separator;

an air intake centrally located along the first longitudinal axis of the first cyclonic separator;
an inlet passage in fluid communication with the air intake and at least partially received in the first cyclonic separator;
a guiding passage communicated with the inlet passage and the first cyclonic separator respectively, wherein a fluid introduced
through the inlet passage is tangentially guided outwardly into the interior separating space of the first cyclonic separator
by the guiding passage;

wherein each of the plurality of second cyclonic separators has an air inlet formed on a side wall thereof, and the fluid
is tangentially guided into the plurality of second cyclonic separators by the air inlet.

US Pat. No. 10,149,352

MICROWAVE OVEN

GUANGDONG MIDEA KITCHEN A...

1. A microwave oven, comprising:an outer housing defining an accommodating chamber therein and having a first cooling air inlet and a first cooling air outlet therein;
an inner housing disposed within the accommodating chamber and defining a heating chamber therein, the heating chamber having a second cooling air inlet and a second cooling air outlet communicated with the first cooling air outlet, the second cooling air inlet and the second cooling air outlet being formed in the top wall of the heating chamber, a cooling air passage being defined between an upper surface of the inner housing and a top wall of the accommodating chamber and communicated with the second cooling air inlet;
a cooling fan having an air inlet communicated with the first cooling air inlet via an air inlet passage and an air outlet communicated with the cooling air passage, and the cooling fan being positioned between the upper surface of the inner housing and the top wall of the accommodating chamber; and
an electrical component disposed within the cooling air passage,
wherein the air inlet passage includes an air inlet section extended in a front-rear direction and a receiving section extended in a left-right direction, a front end of the air inlet section is communicated with the first cooling air inlet and a rear end of the air inlet section is communicated with a right end of the receiving section, and the cooling fan is disposed within the receiving section which is communicated with the cooling air passage,
wherein the microwave oven further comprises:
a side plate disposed on the upper surface of the inner housing and defining an accommodating space with a front wall of the accommodating chamber, the first cooling air inlet and outlet being formed in the front wall of the accommodating chamber;
a first plate disposed within the accommodating space and defining an air outlet passage with the side plate and the front wall of the accommodating chamber, the first cooling air outlet and the second cooling air outlet being communicated with each other via the air outlet passage; and
a second plate disposed within the accommodating space, the second plate defining one of the cooling air passage and the air inlet passage with the first plate and the front wall of the accommodating chamber, and the second plate defining the other of the cooling air passage and the air inlet passage with the side plate and the front wall of the accommodating chamber.

US Pat. No. 9,743,795

ELECTRIC COOKING DEVICE

MIDEA GROUP CO., LTD., F...

1. An electric cooking device comprising:
a plurality of electric cookers which are capable of cooking ingredients therein independently,
wherein adjacent electric cookers of the plurality of the electric cookers are detachably connected with each other,
wherein each of the electric cookers defines a first side and a second side, and comprises a first electric connector disposed
on the first side and a second electric connector disposed on the second side,

wherein the first electric connector of one electric cooker of the adjacent electric cookers is adapted to electrically connect
with the second electric connector of the other electric cooker of the adjacent electric cookers via a plug and socket relationship,

wherein each of the electric cookers comprises an outer pot and at least one inner pot adapted to dispose in the outer pot
and to contain ingredients,

wherein each of the electric cookers comprises a protrusion disposed on the first side and a recess disposed in the second
side,

wherein the first electric connector is a female contact disposed on the protrusion and the second electric connector is a
male contact disposed in the recess, and

wherein the protrusion of the one electric cooker of the adjacent electric cookers is adapted to fit within the recess of
the other electric cooker of the adjacent electric cookers.

US Pat. No. 9,920,949

AIR CONDITIONING SYSTEM AND ENERGY MANAGEMENT METHOD OF AIR CONDITIONING SYSTEM

Midea Group Co., Ltd., F...

1. An air conditioning system, comprising a controller and an indoor unit, the indoor unit comprising a controlling module,
the controller being configured to send an energy control signal to the controlling module, the controlling module being configured
to receive the energy control signal and determine a state of the indoor unit according to the energy control signal, states
of the indoor unit comprising an off state, a heating state and a cooling state;
if the indoor unit is under the off state, the controlling module being configured to maintain the off state of the indoor
unit, and determine whether an indoor temperature is smaller than a preset temperature;

if the indoor temperature is smaller than the preset temperature, the controlling module being configured to control the indoor
unit to heat according to a first heating temperature, and increase a target degree of subcooling of the indoor unit;

if the indoor temperature is not smaller than the preset temperature, the controlling module being configured to maintain
the off state of the indoor unit;

if the indoor unit is under the heating state, the controlling module being configured to set a second heating temperature
of the indoor unit to the first heating temperature, and control the indoor unit to heat according to the first heating temperature,
and increase the target degree of subcooling of the indoor unit, the first heating temperature being smaller than the second
heating temperature;

if the indoor unit is under the cooling state, the controlling module being configured to set a first cooling temperature
of the indoor unit to a second cooling temperature and control the indoor unit to cool according to the second cooling temperature,
and increase a target degree of superheating of the indoor unit, the second cooling temperature being greater than the first
cooling temperature;

the air conditioning system comprising an outdoor unit, when the controlling module controls the indoor unit to heat according
to the first heating temperature, the controlling module being configured to send a first heating demand to the outdoor unit;

the controlling module being further configured to reduce the first heating demand to a second heating demand, and send the
second heating demand to the outdoor unit;

when the controlling module controls the indoor unit to cool according to the second cooling temperature, the controlling
module being configured to send a first cooling demand to the outdoor unit;

the controlling module being further configured to reduce the first cooling demand to a second cooling demand, and send the
second cooling demand to the outdoor unit.

US Pat. No. 9,856,127

WATER SUPPLY APPARATUS

FOSHAN MIDEA CHUNGHO WATE...

1. A water supply apparatus, comprising:
a cooling tank with a cold water outlet, wherein the cooling tank is suitable for being connected with a water source and
the water source is configured for supplying water to the cooling tank;

a refrigeration system comprising a compressor, a condenser, a throttling device and an evaporator sequentially connected
head to tail; and

a heat exchange device disposed outside the cooling tank and provided with a water inlet and a water outlet communicating
with an inside of the cooling tank;

wherein the cooling tank is a component separated from the heat exchange device and is connected to the heat exchange device
through a connecting pipeline, and the heat exchange device is configured such that water in the cooling tank flows into the
heat exchange device from the water inlet and performs a heat exchange with the evaporator, the water after the heat exchange
flows out from the water outlet and flows back to the cooling tank.

US Pat. No. 10,015,846

SEMICONDUCTOR MICROWAVE OVEN AND MICROWAVE FEEDING STRUCTURE THEREOF

Guangdong Midea Kitchen A...

1. A microwave feeding structure for a semiconductor microwave oven, comprising:a chamber body having a door;
a semiconductor power source configured to generate a microwave; and
a microwave feeding assembly connected between the semiconductor power source and the chamber body, and configured to feed the microwave generated by the semiconductor power source into the chamber body and to convert a first microwave mode of TE11 output by the semiconductor power source into a second microwave mode of TE10 adaptive to microwave heating, and
a rectangular wave guide connected with the chamber body,
wherein the microwave feeding assembly is connected between the semiconductor power source and the rectangular wave guide, and includes;
a mounting tube;
a ceramic ring having a first end connected with the mounting tube and a second end;
a tube case connected with the second end of the ceramic ring; and
an antenna defining a first end connected with the semiconductor power source and a second end extended through the tube case, the ceramic ring and the mounting tube sequentially into the rectangular wave guide.

US Pat. No. 9,867,492

WATER DISPENSER HAVING BEVERAGE-MAKING FUNCTION

MIDEA GROUP CO., LTD., F...

1. A water dispenser having beverage-making function, comprising:
a body defining a beverage making cavity with an open side therein;
a beverage making assembly disposed in the beverage making cavity and including a beverage container for accommodating a beverage
capsule, the beverage container having a first penetration member for penetrating a bottom of the beverage capsule;

a water injection mechanism for supplying water to the beverage capsule and having a second penetration member for penetrating
a top of the beverage capsule; and

a sleeve disposed at a bottom of the beverage container for receiving beverage flowing out of the beverage container, and
having a beverage outlet formed in a bottom thereof.

US Pat. No. 9,872,582

ELECTRIC PRESSURE COOKER

Midea Group Co., Ltd., F...

1. An electric pressure cooker, comprising:
a cooker body, wherein the cooker body comprises:
a housing;
an outer container disposed in the housing such that a cavity is defined between the outer container and the housing; and
a cap fitted over upper portions of the outer container and the housing and closing the cavity;
a cooker cover having a closing state in which the cooker body is covered by the cooker cover and an opening state in which
the cooker cover is removed from the cooker body, wherein the cooker cover is rotatable with respect to the cooker body between
a sealing position and an unsealing position in the closing state; and

a micro-switch assembly disposed on the cooker body and adapted to switch between an OFF state in which the micro-switch assembly
controls the electric pressure cooker not to cook and an ON state in which the micro-switch assembly controls the electric
pressure cooker to cook, wherein when the cooker cover is in the closing state and at the unsealing position, the cooker cover
actuates the micro-switch assembly to switch to the OFF state, and wherein the micro-switch assembly is in the ON state when
the cooker cover is in the opening state or at the sealing position;

wherein the micro-switch assembly comprises:
a push rod movable in an up-down direction between a first position at which the micro-switch assembly is in the ON state
and a second position at which the micro-switch assembly is in the OFF state, wherein the cooker cover actuates the push rod
to the second position when the cooker cover is in the closing state and at the unsealing position;

a front housing having a second mounting hole within which the push rod is movably disposed in the up-down direction;
a rear housing coupled with the front housing;
a fixed support disposed on the front housing; and
a movable support movably coupled with the fixed support in the up-down direction;
wherein the micro-switch assembly is disposed in the cavity and the push rod extends upwardly out of the cap.

US Pat. No. 10,194,494

MICROWAVE COOKING DEVICE

MIDEA GROUP CO., LTD., F...

1. A microwave cooking device, comprising:a shell defining an air inlet and an air outlet therein;
a filter screen disposed at the air outlet; and
a ventilation grid assembly comprising:
a body defining a through hole therein and disposed on an outer surface of the shell, the through hole being opposite to the filter screen;
a cover plate disposed on the body and moveable between an open position where the through hole is opened by the cover plate and a closed position where the through hole is closed by the cover plate, wherein the cover plate defines a positioning hole and a snapping groove therein;
a first support disposed at a bottom wall of the through hole;
a positioning column defining a first end disposed on the first support and a second end which is a free end and is fitted within the positioning hole, the cover plate being rotatable relative to the second end of the positioning column;
a second support and a third support disposed at the bottom wall of the through hole and spaced apart from each other; and
a positioning pin defining a first end disposed on the second support and a second end disposed on the third support, and snap-fitted within the snapping groove, the cover plate being rotatable relative to the positioning pin.

US Pat. No. 9,895,046

DISHWASHER RACK LIFT SYSTEM

Midea Group Co., Ltd., B...

1. A dish washing appliance comprising:
a dishwasher tub defining a wash cavity;
one or more dishwasher racks positioned within the wash cavity of the dishwasher tub, at least one of the dishwasher racks
is moveable between a stowed position and a deployed position, wherein the deployed position is different from the stowed
position;

at least one threaded member;
one or more slides coupling the at least one dishwasher r rack to the at least one threaded member;
at least one motor;
at least one worm screw located within the wash cavity and operably coupled to the at least one motor;
the at least one threaded member and the at least one dishwasher rack connected to the at least one worm screw, wherein the
at least one threaded member, the one or more slides, and the at least one dishwasher rack is positionable between a first
height and a second height along a length of the at least one worm screw when the at least one dishwasher rack is in the deployed
position, wherein the second height is at a higher vertical elevation than the first height; and

wherein the at least one threaded member and the at least one worn screw are positioned adjacent a rear wall of the dishwasher
tub.

US Pat. No. 9,879,893

AIR CONDITIONING SYSTEM, METHOD FOR CONTROLLING AIR CONDITIONING SYSTEM, AND OUTDOOR APPARATUS OF AIR CONDITIONING SYSTEM

Midea Group Co., Ltd., F...

1. An air condition system, comprising:
an indoor apparatus; and
an outdoor apparatus comprising
a variable-frequency compressor;
a controller configured to perform a variable-frequency control on the variable-frequency compressor according to operation
parameters of the variable-frequency compressor for a heating operation or a refrigerating operation and independent from
the indoor apparatus;

a communicator configured to receive an on-off instruction and a mode option instruction sent from a remote, a line controller
or the indoor apparatus of the air condition system;

a first pressure sensor disposed at an inlet of the variable-frequency compressor and configured to generate a first pressure
detecting signal, when a working mode of the air condition system is a refrigerating mode; and

a second pressure sensor disposed at an outlet of the variable-frequency compressor and configured to generate a second pressure
detecting signal, when the working mode is a heating mode,

wherein the controller is configured to generate a current refrigerant saturation temperature by selecting one of the first
pressure detecting signal and the second pressure detecting signal according to the working mode, to obtain a target refrigerant
saturation temperature, to perform the variable-frequency control on the variable-frequency compressor according to the target
refrigerant saturation temperature and the current refrigerant saturation temperature, and to adjust the target refrigerant
saturation temperature according to the operation parameters of the variable-frequency compressor during the variable-frequency
control,

wherein the operation parameters of the variable-frequency compressor comprise a working time of the variable-frequency compressor
and a stop-start number of time of the variable-frequency compressor in a first predetermined period,

when the working time of the variable-frequency compressor is larger than or equal to a first time threshold and the stop-start
number of time of the variable-frequency compressor in the first predetermined period is larger than or equal to a first predetermined
number of time threshold, the controller adjusts the target refrigerant saturation temperature according to a predetermined
step length.

US Pat. No. 9,780,555

AIR CONDITIONER AND COMPRESSOR PROTECTION CIRCUIT THEREOF

MIDEA GROUP CO., LTD., F...

1. A compressor protection circuit, comprising: a current sampling module, a reference voltage generating module, a voltage
comparison module, and an intelligent power module, the current sampling module sampling a phase current of the compressor
and outputting a corresponding sampling voltage signal to a first input end of the voltage comparison module, the reference
voltage generating module outputting a reference voltage signal to a second input end of the voltage comparison module, the
voltage comparison module comparing the sampling voltage signal with the reference voltage signal; the intelligent power module
controlling a working condition of the compressor according to a driving signal outputted by a signal processing circuit,
when the intelligent power module shutting off the output, the intelligent power module outputting a fault protecting signal
simultaneously, so that the signal processing circuit stopping outputting the driving signal; the compressor protection circuit
further comprising a signal latching module;
an output end of the voltage comparison module being connected with an input end of the signal latching module, an output
end of the signal latching module being connected with a testing port for protecting trigger voltage of the intelligent power
module, a latching-controlling end of the signal latching module being connected with the signal processing circuit; when
the sampling voltage signal being higher than the reference voltage signal, the voltage comparison module outputting an overcurrent
level signal to the signal latching module, the signal latching module latching and outputting the overcurrent level signal
to the intelligent power module continuously according to the overcurrent level signal, so that the intelligent power module
shutting off the output of a phase current; when the signal processing circuit outputting a latching cancel signal to the
signal latching module, the signal latching module outputting a conventional level signal to the intelligent power module
according to the latching cancel signal, the intelligent power module driving the compressor to operate according to the conventional
level signal and a driving signal outputted by the signal processing circuit.

US Pat. No. 10,036,561

INDOOR UNIT FOR AIR CONDITIONER

GD MIDEA AIR-CONDITIONING...

1. An indoor unit for an air conditioner, comprising:a housing comprising an upper base plate provided with an air inlet, a lower base plate detachably mounted to the upper base plate and provided with an air outlet, and a front cover detachably mounted to the upper base plate;
a fan detachably mounted to the lower base plate; and
a heat exchanger detachably mounted to the upper base plate and having a supporting seat and a heat exchanger core body mounted to the supporting seat,
wherein the upper base plate is provided with a first positioning portion, the supporting seat is provided with a second positioning portion, and the first positioning portion is configured to be fitted with the second positioning portion to position the heat exchanger core body to the upper base plate,
wherein a plurality of bent pipe structures are provided at an end of the heat exchanger core body, one end of the heat exchanger core body is mounted to the supporting seat, the supporting seat is provided with a plurality of mounting holes corresponding to the plurality of bent pipe structures, at least one of the plurality of mounting holes is a positioning mounting hole, an elastic cantilever is provided in the positioning mounting hole, and is configured to avoid the bent pipe structure when mounting the heat exchanger core body and configured to be restored to position a corresponding bent pipe structure after the heat exchanger core body is mounted in place.

US Pat. No. 10,028,638

APPLIANCE WITH A RETRACTABLE AND SLIDABLE DOOR

Midea Group Co., Ltd., B...

1. An appliance, comprising:a housing with an aperture extending along a plane and providing access to an interior compartment of the appliance; and
a door slidable and retractable between at least a closed position to an open position;
wherein the door includes at least three panels configured in an iris arrangement;
wherein at least a portion of the door is configured to move substantially parallel to the plane of the aperture and across the aperture when actuating between the closed position and the open position;
wherein the door closes the aperture in the closed position; and
wherein the door provides access to the interior compartment and is retracted into the housing in the open position.

US Pat. No. 9,933,168

AIR SUPPLY APPARATUS USED FOR AIR CONDITIONER AND AIR CONDITIONER INDOOR UNIT HAVING THE SAME

Midea Group Co., Ltd., F...

1. An air conditioner indoor unit, comprising:a housing having an air outlet channel;
an air supply apparatus used for an air conditioner comprising:
an annular outer frame having an outer surface formed as a partial spherical surface and having an accommodating space therein,
an impeller assembly provided in the accommodating space and pivotally connected to the outer frame, wherein the impeller assembly has an air suction side and an air outlet side,
a central part disposed in the accommodating space and coaxially provided with the outer frame, and
a plurality of air guide blades arranged along a circumferential direction in the accommodating space, and an outer end of each air guide blade being connected to an inner surface of the outer frame and an inner end of each air guide blade being connected to an outer surface of the central part,
wherein the impeller assembly comprises: an impeller; an electric motor driving the impeller, the electric motor being installed in the central part, an output shaft of the electric motor being connected to the impeller through the central part;
wherein the air supply apparatus is disposed in the air outlet channel and rotatable related to the housing; and
an evaporator disposed in the housing and located at the air suction side of the impeller assembly of the air supply apparatus,
wherein the air outlet channel has an air outlet, an annular wall is provided at the air outlet, an inner surface of the annular wall is formed as a partial spherical surface, and the outer frame of the air supply apparatus is connected to the annular wall in a pivotal manner by a rotation apparatus, and wherein the air supply apparatus is rotatable along at least one axis of the air outlet,
wherein the rotation apparatus comprises: a first rotation mechanism connected to the annular wall in a movable manner; and a first driving mechanism driving the first rotation mechanism to rotate about a first axis,
wherein the first rotation mechanism comprises: a first shaft piece and a second shaft piece, the first shaft piece and the second shaft piece being disposed between the outer frame and the annular wall and provided on two opposite sides of the outer frame, respectively, the first shaft piece and the second shaft piece being connected to the outer frame and to the annular wall in a movable manner respectively, the first shaft piece and the second shaft piece having a co-axis with the first axis, wherein the first driving mechanism drives at least one of the first shaft piece and the second shaft piece to rotate,
wherein the first driving mechanism comprises: a first driving electric motor, an output shaft of the first driving electric motor being provided with a first gear; a first gear pair, the first gear pair being formed as a sector, a first end of the first gear pair having a first tooth engaged with the first gear and a second end being fixed on the first shaft piece,
wherein the rotation apparatus further comprises a mounting bracket, the mounting bracket comprising a first mounting arm fixed to the outer frame, wherein the first shaft piece and the second shaft piece are connected to both ends of the first mounting arm respectively.

US Pat. No. 9,797,642

SYSTEM AND METHOD FOR CONTROLLING AN AIR CONDITIONING SYSTEM AND AN OUTDOOR APPARATUS OF THE SYSTEM

Midea Group Co., Ltd., F...

1. A method for controlling an air conditioning system, comprising:
obtaining a working mode of the air conditioning system and starting a variable-frequency compressor in an outdoor apparatus
of the air conditioning system according to the working mode;

obtaining a target refrigerant saturation temperature;
performing a variable-frequency control on the variable-frequency compressor according to the target refrigerant saturation
temperature;

during the variable-frequency control, obtaining a working time of the variable-frequency compressor and a stop-start number
of time of the variable-frequency compressor in a first predetermined period; and

adjusting the target refrigerant saturation temperature according to the working time of the variable-frequency compressor
and the stop-start number of time of the variable-frequency compressor in the first predetermined time.

US Pat. No. 10,159,398

DISHWASHER RACK SYSTEM

Midea Group Co., Ltd., B...

1. A dish washing appliance comprising:a dishwasher tub;
at least one dishwasher rack positioned within the dishwasher tub, the at least one dishwasher rack positionable between a stowed position and a deployed position along a horizontal plane, wherein the deployed position is different from the stowed position;
at least one motor;
a gear mechanism connecting the at least one motor to the at least one dishwasher rack;
the at least one dishwasher rack is operable between the stowed position and the deployed position in at least one of an automatic configuration and a manual configuration;
when in the automatic configuration the at least one motor applies a first force to the at least one dishwasher rack between the deployed position and the stowed position; and
when in the manual configuration the at least one motor applies a second force in addition to a user applied force to the at least one dishwasher rack between the deployed position and the stowed position, wherein the second force is less than the first force and greater than zero.

US Pat. No. 10,126,029

VARIABLE REFRIGERANT FLOW AIR CONDITIONING SYSTEM AND METHOD FOR CONTROLLING ELECTRONIC EXPANSION VALVE THEREOF

MIDEA GROUP CO., LTD., F...

1. A method for controlling an electronic expansion valve of a variable refrigerant flow (VRF) air conditioning system, wherein, the VRF air conditioning system comprises: an outdoor machine, a plurality of indoor machines and a flow distributing device, the flow distributing device comprises: a first heat exchanger, a second heat exchanger and a first electronic expansion valve, wherein the first electronic expansion valve is connected between an outlet of a first heat exchange flow path of the second heat exchanger and an inlet of a second heat exchange flow path of the second heat exchanger, and the method comprises steps as follows:when the VRF air conditioning system operates in a primary heating mode, obtaining a degree of superheat of return air of a compressor, and performing a control on an opening degree of the first electronic expansion valve according to the degree of superheat of return air;
judging the degree of superheat of return air and an opening degree of an electronic expansion valve of each refrigerating indoor machine in the plurality of indoor machines; and
if the degree of superheat of return air is greater than a first preset degree of superheat and an opening degree of an electronic expansion valve in any refrigerating indoor machine reaches a maximum opening degree, obtaining a target medium pressure value by calculating a refrigerant volume of the refrigerating indoor machine with the electronic expansion valve reaching the maximum opening degree, and performing a medium pressure control on the first electronic expansion valve according to the target medium pressure value.

US Pat. No. 10,101,054

VARIABLE REFRIGERANT FLOW AIR CONDITIONING SYSTEM WITH DUAL CONTROL OVER TEMPERATURE AND HUMIDITY AND CONTROL METHOD THEREOF

MIDEA GROUP CO., LTD., F...

1. A variable refrigerant flow (VRF) air conditioning system with dual control over temperature and humidity, comprising:an outdoor machine having a first connector and a second connector;
a controller; and
a plurality of indoor machines, each comprising:
an indoor throttle valve having a first end connected with the first connector;
a first solenoid valve having a first end connected with a second end of the indoor throttle valve;
a first heat exchanger and a second heat exchanger, wherein a first end of the first heat exchanger is connected with a first end of the second heat exchanger, and a first node is provided between the first end of the first heat exchanger and the first end of the second heat exchanger and is connected with a second end of the first solenoid valve;
a second solenoid valve having a first end connected with the first end of the first solenoid valve and the second end of the indoor throttle valve respectively, and a second end connected with a second end of the second heat exchanger, wherein a second node is provided between the second end of the second solenoid valve and the second end of the second heat exchanger;
a third solenoid valve having a first end connected with the second node, and a second end connected with a second end of the first heat exchanger and the second connector respectively;
a temperature detector configured to detect an indoor environment temperature; and
a humidity detector configured to detect indoor environment relative humidity;
wherein the controller is connected with the indoor throttle valve, the first solenoid valve, the second solenoid valve, the third solenoid valve, the temperature detector and the humidity detector of each indoor machine respectively, and is configured to control the VRF air conditioning system through control over the indoor throttle valve, the first solenoid valve, the second solenoid valve and the third solenoid valve of each indoor machine.

US Pat. No. 10,161,074

LAUNDRY WASHING MACHINE WITH AUTOMATIC DETERGENT DISPENSING AND/OR RINSE OPERATION TYPE SELECTION

Midea Group Co., Ltd., B...

1. A laundry washing machine, comprising:a wash tub disposed within a housing;
a detergent dispenser configured to dispense detergent for washing a load disposed in the wash tub;
a weight sensor operatively coupled to the wash tub to sense a weight associated with the wash tub;
a fluid level sensor configured to sense a fluid level in the wash tub;
a fluid property sensor configured to sense turbidity and/or conductivity of fluid from the wash tub; and
a controller coupled to the detergent dispenser and the weight, fluid level, and fluid property sensors, the controller configured to dynamically select a load type from among a plurality of load types prior to agitating the load based at least upon a weight value sensed by the weight sensor and a fluid level value sensed by the fluid level sensor, and to control a wash cycle at least based upon the selected load type and a fluid property value sensed by the fluid property sensor, wherein the controller is configured to control the wash cycle at least by controlling an amount of detergent dispensed by the detergent dispenser based at least in part upon the fluid property value.

US Pat. No. 10,161,075

LAUNDRY WASHING MACHINE WITH AUTOMATIC DETECTION OF DETERGENT DEFICIT

Midea Group Co., Ltd., B...

1. A laundry washing machine, comprising:a wash tub disposed within a housing;
a detergent dispenser configured to dispense detergent for washing a load disposed in the wash tub;
a fluid property sensor configured to sense turbidity and/or conductivity of fluid from the wash tub; and
a controller coupled to the detergent dispenser and the fluid property sensor, the controller configured to initiate a fill phase of a wash cycle to dispense water into the wash tub subsequent to a manual addition of detergent by a user to form a wash fluid, determine a detergent deficit in the wash fluid based upon a fluid property value sensed by the fluid property sensor, and cause the detergent dispenser to automatically dispense additional detergent in response to determining the detergent deficit;
wherein the controller is configured to determine the detergent deficit by:
determining a total amount of detergent to dispense;
determining an amount of detergent manually added by the user and sensed by the fluid property sensor; and
determining an amount of additional detergent to dispense based upon the determined total amount of detergent to dispense and the determined amount of detergent manually added by the user; and
wherein the controller is configured to cause the detergent dispenser to automatically dispense the additional detergent in response to determining the detergent deficit by causing the detergent dispenser to automatically dispense the determined amount of additional detergent.

US Pat. No. 10,141,848

INTERLEAVED POWER FACTOR CORRECTOR

MIDEA GROUP CO., LTD., F...

1. An interleaved power factor corrector, comprising:a first power factor correction (PFC) component comprising a first energy storage inductor, a first switch component and a first fast recovery diode;
a second PFC component, parallel to the first PFC component and comprising a second energy storage inductor, a second switch component and a second fast recovery diode, wherein the second switch component is connected to the first switch component and a first node is between the second switch component and the first switch component;
a current sampling resistor, wherein a first terminal of the current sampling resistor is connected to the first node and a second terminal of the current sampling resistor is grounded;
a current detection component, connected to the first node and configured to detect a current I1 flowing through the first switch component, to detect a current I2 flowing through the second switch component and to detect a current lin flowing through the first switch component and the second switch component, each detection is based on a sampling signal generated by the current sampling resistor;
a voltage detection component, configured to detect a voltage U1 inputted into the interleaved power factor corrector and an output voltage U2 of the interleaved power factor corrector; and
a control component, connected to the current detection component, the voltage detection component, a control terminal of the first switch component and a control terminal of the second switch component respectively and configured to generate a first pulse-width modulation (PWM) control signal for controlling the first switch component and a second PWM control signal for controlling the second switch component based on the current I1, the current I2, the current lin, the voltage U1, the voltage U2 and a preset target output voltage, wherein the first PWM control signal is different from the second PWM control signal by a half of a carrier period;
wherein the control component further comprises:
a PFC control unit, configured to generate a first duty ratio signal in each carrier cycle based on the current lin, the voltage U1, the voltage U2, and the preset target output voltage;
a duty ratio adjustment unit, configured to calculate a duty ratio adjustment value based on the current I1 and the current I2;
a first calculating unit, configured to calculate a duty ratio signal of the first switch component based on the first duty ratio signal and the duty ratio adjustment value;
a second calculating unit, configured to calculate a duty ratio signal of the second switch component based on the first duty ratio signal and the duty ratio adjustment value;
a first saw-tooth wave generating unit, configured to output a first saw-tooth wave signal;
a second saw-tooth wave generating unit, configured to output a second saw-tooth wave signal;
a first PWM control signal generating unit, configured to generate the first PWM control signal based on the duty ratio signal of the first switch component and the first saw-tooth wave signal; and
a second PWM control signal generating unit, configured to generate the second PWM control signal based on the duty ratio signal of the second switch component and the second saw-tooth signal.

US Pat. No. 10,132,417

SIX-WAY DIRECTIONAL VALVE

MIDEA GROUP CO., LTD., F...

1. A six-way directional valve comprising:a valve body, defining a valve cavity therein and provided with a first connecting pipe, a second connecting pipe, a third connecting pipe, a fourth connecting pipe, a fifth connecting pipe and a sixth connecting pipe;
a valve spool, movably disposed in the valve cavity, wherein two valve chambers are defined between two moving ends of the valve spool and an inner circumferential wall of the valve cavity, so that the valve spool is driven to move by a pressure difference between the two valve chambers, a first chamber and a second chamber are defined between the valve spool and a same side wall of the valve cavity, a third chamber is defined between the valve spool and the inner circumferential wall of the valve cavity, the first connecting pipe is normally communicated with the third chamber, the third connecting pipe is normally communicated with the first chamber, the fifth connecting pipe is normally communicated with the second chamber, the valve spool moves so that one of the second connecting pipe and the sixth connecting pipe is communicated with the third chamber, the first chamber is communicated with the second connecting pipe or the fourth connecting pipe, and the second chamber is communicated with the fourth connecting pipe or the sixth connecting pipe; and
a pilot valve assembly, connected with the two valve chambers so as to switch pressures in the two valve chambers, and connected with the first connecting pipe and the fourth connecting pipe,
wherein the valve spool comprises:
two barrier blocks spaced apart from each other, the two valve chambers being defined between the two barrier blocks and the inner circumferential wall of the valve cavity; and
a sliding block, disposed between the two barrier blocks and connected to the two barrier blocks through two connecting rods, the sliding block being slidable with respect to the same side wall of the valve cavity, the first chamber and the second chamber being defined between the sliding block and the same side wall of the valve cavity, and the third chamber being defined between the sliding block, the two connecting rods, the two barrier blocks and the inner circumferential wall of the valve cavity,
the two barrier blocks, the sliding block and the two connecting rods are configured as an integrally formed member.

US Pat. No. 10,105,032

APPLIANCE WITH A RETRACTABLE AND SLIDABLE DOOR

Midea Group Co., Ltd., B...

1. An appliance, comprising:a housing with an aperture extending along a plane and providing access to an interior compartment of the appliance; and
a door slidable and retractable between at least a closed position to an open position;
wherein the door includes at least three panels configured in an iris arrangement;
wherein at least a portion of the door is configured to move substantially parallel to the plane of the aperture and across the aperture when actuating between the closed position and the open position;
wherein the door closes the aperture in the closed position; and
wherein the door provides access to the interior compartment and is retracted into the housing in the open position.

US Pat. No. 10,197,320

METHOD AND APPARATUS FOR ADJUSTING OPERATING FREQUENCY OF INVERTER COMPRESSOR

MIDEA GROUP CO., LTD., F...

1. A method for adjusting an operating frequency of an inverter compressor, comprising:detecting whether an inverter air conditioner comprising the inverter compressor is in a heating mode;
obtaining a target operating current of the inverter compressor if the inverter air conditioner is in the heating mode;
adjusting the operating frequency of the inverter compressor according to the target operating current;
determining whether to adjust the target operating current based on an operating condition of the inverter compressor, and obtaining a maximum operating frequency of the inverter compressor in response to determining to adjust the target operating current;
obtaining a current correction according to the maximum operating frequency and correcting the target operating current according to the current correction to update the target operating current.