US Pat. No. 9,312,743

MOTOR FOR WASHING MACHINE, METHOD FOR MANUFACTURING SAME, AND WASHING MACHINE HAVING SAME

AMOTECH CO., LTD., (KR)

1. A motor for a washing machine, the motor comprising:
an inner rotor connected to a dehydrating tub rotating shaft;
an outer rotor connected to a pulsator rotating shaft; and
a double stator arranged to leave a gap between the inner rotor and the outer rotor, the double stator having a first coil
which interacts with the outer rotor, to thereby form a first magnetic circuit and a second coil which interacts with the
inner rotor, to thereby form a second magnetic circuit,

wherein a first drive signal is applied to the first coil and a second drive signal different from the first drive signal
is applied to the second coil,

wherein the double stator comprises a plurality of split core assemblies,
wherein one of the split core assemblies comprises: a split core on one side of which an outer teeth are formed and on the
other opposite side of which an inner teeth are formed; a bobbin that surrounds an outer surface of the split core and is
an insulator, a partition between the outer teeth and the inner teeth, and a connecting unit that is formed at both ends of
the partition and connects between the split cores adjacent to each other,

wherein the first coil to which the first drive signal is applied is wound on the outer teeth and the second coil to which
the second drive signal different from the first drive signal is applied is wound on the inner teeth, and

wherein the connecting unit comprises: a coupling protrusion that is formed on one side of the partition; and a coupling recess
that is formed on the other side of the partition and that is fitted with the coupling protrusion.

US Pat. No. 9,188,128

ELECTRIC WATER PUMP

HYUNDAI MOTOR COMPANY, S...

1. An electric water pump, comprising:
a motor having:
a rotating shaft;
a rotor assembly fitted over a circumferential outer surface of the rotating shaft, the rotor assembly rotatably installed
in a space through which a pumped coolant flows;

a stator assembly enclosing the rotor assembly and providing magnetic force for rotating the rotor assembly using electricity;
and

a sealing can forming an inner surface of the stator assembly such that a gap is defined between the inner surface of the
stator assembly and a circumferential outer surface of the rotor assembly, the sealing can enclosing and rotatably supporting
both a rear end of the rotor assembly and a rear end of the rotating shaft;

a pump cover having an inlet through which the coolant is drawn thereinto, an outlet through which the coolant is discharged
therefrom, and a pumping space in which an impeller rotates; and

a body cover coupled to the pump cover and defining the pumping space along with the pump cover, the body cover defining,
separately from the pumping space, a motor space receiving therein the stator assembly and the rotor assembly of the motor,

wherein a sealing coupling end is provided on a front end of the sealing can, and a sealing member is interposed between the
sealing coupling end and the body cover so that an inside of the sealing can is sealed and isolated from the outside,

a communication hole is formed in the body cover and disposed radially inward of the sealing member, the communication hole
communicating the pumping space with the space in which the rotor assembly is installed, and

a front bearing is provided in the body cover and disposed radially inward of the communication hole, the front bearing rotatably
supporting the front end of the rotating shaft.

US Pat. No. 9,419,497

DOUBLE-ROTOR MOTOR

AMOTECH CO., LTD., (KR)

1. A double-rotor type motor comprising:
a stator;
a double-rotor including an inner rotor and an outer rotor;
a rotor support having an annular groove formed open towards a lower side thereof, the annular groove accommodating the stator
and having an inner surface, an outer surface facing the inner surface and an open lower portion, wherein the inner rotor
is mounted on the inner surface and the outer rotor is mounted on the outer surface;

a plurality of air passages formed above the annular groove, each of the air passages penetrating the rotor support while
forming a support rib in a radial direction between neighboring air passages;

an outer blade formed on an upper surface of the support rib, the outer blade protruding upwards by a predetermined height;
and

an inner blade formed on an inner surface opposite to the upper surface of the support rib, the inner blade protruding downwards
by a predetermined height,

wherein the plurality of the air passages, the outer blade and the inner blade form a heat dissipation unit forcibly ventilating
outer air through the air passages into the annular groove during rotation of the double-rotor, to thereby dissipate heat
generated from the stator.

US Pat. No. 9,318,927

AMORPHOUS STATOR, AND ELECTRIC MOTOR USING SAME

AMOTECH CO., LTD., (KR)

1. An amorphous stator for use in an electric motor, the amorphous stator comprising:
a number of unit split core assemblies that are temporarily assembled in an annular form; and
an annular support bracket that are coupled at one side surface of the number of the assembled unit split core assemblies,
to thus fix the number of the unit split core assemblies,

wherein each of the number of unit split core assemblies comprises:
a number of unit split cores that are made in an “I”-shape by compression molding amorphous alloy powder;
a number of insulating bobbins that comprise inner and outer flanges that are formed in the outer periphery of the number
of unit split cores, to thus define a coil winding area, in which a first coupling protrusion and a coupling ring that are
formed at both ends of the outer flange interconnect with each other to then be assembled in an annular form, and that are
fixed to the outer side of the annular support bracket by a second coupling protrusion that extends in a direction opposed
to the first coupling protrusion and fixed to the inner side of the annular support bracket by a pair of third coupling protrusions
that are formed at both sides of the inner flange; and

a coil that is wound on the coil winding area of the insulating bobbins.

US Pat. No. 9,391,499

AMORPHOUS DIVIDED-CORE STATOR AND AXIAL-GAP-TYPE MOTOR USING SAME

AMOTECH CO., LTD., (KR)

1. An axial gap type amorphous split core motor comprising:
a rotating shaft whose both ends are rotatably supported;
first and second annular yokes the center of each of which combined with the rotating shaft and that are placed at an interval
therebetween;

first and second rotors having a plurality of magnets that are mounted on the inner surfaces of the first and second yokes
with polarities opposite to each other; and

a stator having a plurality of split cores that are placed between the first and second rotors and on each of which a coil
is wound,

wherein the split cores are molded by using amorphous metallic powder.

US Pat. No. 10,050,502

DOUBLE STATOR AND MOTOR COMPRISING SAME

AMOTECH CO., LTD., Inche...

1. A double stator comprising:a stator core;
a bobbin wrapped on an outer circumferential surface of the stator core; and
a first coil wound on one side of the stator core and a second coil wound on the other side of the stator core,
wherein the stator core comprises:
a lamination type core portion that is formed by laminating a plurality of iron pieces, on an outer surface of which a first press-fit groove is formed, and on an inner surface of which a second press-fit groove is formed;
a first integration type core portion that is fixed to the first press-fit groove of the lamination type core portion, integrally formed by metal powders, and on which the first coil is wound; and
a second integration type core portion that is fixed to the second press-fit groove of the lamination type core portion, integrally formed by metal powders, and on which the second coil is wound.

US Pat. No. 9,653,808

MULTILAYER PATCH ANTENNA

AMOTECH CO., LTD., Inche...

1. A multilayer-type patch antenna, comprising:
an upper patch antenna portion having a first through hole and a second through hole which are spaced apart from each other
and are arranged such that an angle between the first through hole and the second through hole in reference to a center point
of the upper patch antenna portion is a predetermined angle;

a lower patch antenna portion having a third through hole and a fourth through hole which are spaced from each other and are
arranged such that an angle between the third through hole and the fourth through hole in reference to a center point of the
lower patch antenna portion is the predetermined angle, and a fifth through hole which is spaced apart from the third through
hole and the fourth through hole;

a first feeding pin, a portion of which passes through the first through hole and the third through hole and protrudes from
a lower end of the lower patch antenna portion;

a second feeding pin, a portion of which passes through the second through hole and the fourth through hole and protrudes
from the lower end of the lower patch antenna portion; and

a third feeding pin, a portion of which passes through the fifth through hole and protrudes from the lower end of the lower
patch antenna portion,

wherein the upper patch antenna portion includes an accommodation portion that accommodates a head portion of the third feeding
pin.

US Pat. No. 9,318,931

WATER PUMP MOTOR, AND WATER PUMP USING SAME

AMOTECH CO., LTD., (KR)

1. A water pump motor comprising:
a lower case on top of which a cylindrical protrusion is provided;
a stator whose lower portion is supported on top of the cylindrical protrusion and is sealed by the lower case;
a stator case formed of an inner circumferential portion, an outer circumferential portion and an upper surface between upper
end portions of the inner and outer circumferential portions, wherein a lower portion which extends from the inner circumferential
portion of the stator case is sealed by a circular sealing plate, and a groove is formed at a center of the circular sealing
plate, wherein the stator case is monolithically formed as a single piece having the inner circumferential portion, the outer
circumferential portion, the upper surface and the circular sealing plate, which together form an annular trench accommodating
the stator, and wherein a lower distal end portion of the outer circumferential portion is disposed below a bottom surface
of the groove so as to abut against an upper surface of the lower case, and wherein the outer circumferential portion abuts
and surrounds an outer circumferential surface of the cylindrical protrusion, thereby coupling the lower case and the stator
case to each other;

a rotational shaft whose lower portion is rotatably supported by the groove;
a rotor that is placed at an upper-inner circumferential portion of the stator case and having its center coupled to the rotational
shaft to thus rotate according to an action with respect to the stator; and

an upper case having an inverted cup shape and coupled directly with the lower case in such a way that an inner circumferential
surface of the upper case is fitted circumferentially around an outer circumferential surface of the outer circumferential
portion of the stator case, wherein an O-ring is disposed between the upper surface of the stator case and an inner surface
of the upper case,

a middle case having a circular plate shape and disposed on top of the upper-inner circumferential portion of the stator case
and inside the upper case to fluidically seal the rotor in a sealing state, wherein an upper portion of the rotational shaft
is rotatably supported at a center of the middle case,

wherein an upper bearing is installed at the center of the middle case to thereby rotatably support the rotational shaft.

US Pat. No. 9,543,799

SINGLE ROTOR-TYPE MOTOR

AMOTECH CO., LTD., Inche...

1. A single rotor type motor comprising:
a plurality of stators radially arranged, each of the stators including a stator core, a bobbin made of an insulating material
and wrapped on an outer surface of the stator core, and coils wound on an outer surface of the bobbin; and

a single rotor disposed with a certain gap from an inner surface or an outer surface of the stator; and
a wiring unit for electrically wiring the coils wound on the bobbin, the wiring unit being arranged at an opposite side to
the single rotor with respect to the stators,

wherein the wiring unit includes: a terminal pocket integrally formed with the bobbin, the terminal pocket having a seating
groove and an insertion groove, and a coil terminal made of a metal material, wherein the coil terminal is configured to be
inserted into the insertion grooves of the terminal pocket, and end portions of the coils are inserted into the seating groove
and exposed to the insertion groove, and

wherein the coil terminal includes a slot of which one end is open and the other end is closed, a blade formed at the open
end of the slot, and a coil fixing groove formed spaced apart from the blade, wherein the coil terminal is configured in such
a way that the blade cuts an insulation outer sheath of the end portions of the coils inserted into the seating, and the cut
end portions of the coils is press-fitted into the coil fixing groove when the coil terminal is inserted into the insertion
groove, thereby electrically connecting the coils.

US Pat. No. 9,287,758

SLIM-TYPE MOTOR HAVING A HEAT-DISSIPATING STRUCTURE, AND WASHING MACHINE ADOPTING A DIRECT DRIVE SYSTEM

AMOTECH CO., LTD., (KR)

1. A slim type motor having a heat radiating structure for a washing machine having a direct drive system, the slim type motor
comprising:
a stator in which stator cores around which coils are wound are disposed in an annular form in an annular stator support,
wherein the annular stator support includes an outer circumferential edge portion and an inner circumferential edge portion
defining a circular opening in the annular stator support in order to emit heat generated in the inside of the motor to the
outside, the circular opening of the annular stator support being completely open;

a rotor in which a plurality of permanent magnets are arranged in a back yoke mounted on a circular rotor support, to thus
form an air gap with respect to the stator;

a rotating shaft that is coupled to the central portion of the rotor support and is driven by a torque of the rotor; and
a plurality of bolting-couplers that are respectively extended from the outer circumferential edge portion of the annular
stator support and include bolt-coupling holes through which bolts are fitted to couple the annular stator support directly
to a tub of the washing machine,

wherein the stator cores are supported by the annular stator support and held in place at the annular stator support in such
a way that the rotor can be operatively accommodated inside a space provided by the annular stator support and the tub of
the washing machine.

US Pat. No. 9,673,509

ANTENNA MODULE FOR PORTABLE TERMINAL AND PORTABLE TERMINAL COMPRISING SAME

AMOTECH CO., LTD., Inche...

1. An antenna module for a portable terminal, comprising:
a base sheet in which a slot is formed;
an NFC antenna formed on an upper surface of the base sheet;
a wireless charging antenna that is formed on the upper surface of the base sheet and has an outer edge distanced from an
inner edge of the NFC antenna, wherein opposite ends of the wireless charging antenna pass under the NFC antenna while passing
through the slot formed in the base sheet and are connected to a power supply terminal of the portable terminal; and

an insulating sheet formed in a portion where the wireless charging antenna intersects the NFC antenna to provide an insulation
between the wireless charging antenna and the NFC antenna.

US Pat. No. 9,488,177

WATER PUMP

AMOTECH CO., LTD., (KR)

1. A water pump comprising:
a lower casing;
an upper casing sealably mounted on an upper side of the lower casing, the upper casing including a water inlet and a water
outlet;

a fixed shaft fixed to a center of the lower casing by a shaft fixing unit, the lower casing and the fixed shaft being integrally
formed with each other, the fixed shaft penetrating the center of the lower casing and protruding inside the lower casing
and inside the upper casing;

a stator disposed inside the lower casing;
an outer rotor that is arranged at a predetermined gap to an outer circumferential surface of the stator and is rotatably
supported on the fixed shaft;

an impeller that is disposed inside the upper casing and that is rotatably supported on the fixed shaft; and
a power transmission unit that is installed between the impeller and the rotor and transmits rotational force of the rotor
to the impeller by a magnetic force,

wherein the shaft fixing unit includes a concave ring groove formed around an outer circumferential surface of the fixed shaft,
and scratches formed at a plurality of portions where the fixed shaft contacts the lower casing during the insert-molding
of the fixed shaft, thereby reinforcing a bonding force, preventing a vertical movement of the fixed shaft and sealing the
lower casing, wherein a first one of the portions is formed above the contact ring groove and a second one of the portions
is formed below the contact ring groove.

US Pat. No. 9,392,925

MOTOR DRIVE DEVICE FOR WASHING MACHINE AND MOTOR CONTROL METHOD THEREOF

AMOTECH CO., LTD., (KR)

1. A motor drive device for a washing machine, the motor drive device comprising:
a motor controller that generates a drive signal according to a laundry mode signal to control a motor for the washing machine;
a single inverter that generates three-phase alternating-current (AC) power according to the drive signal from the motor controller,
wherein the single inverter is configured to output the three-phase AC power to a first three-phase stator coil for rotating
a first rotor in the motor, and a second three-phase stator coil for rotating a second rotor therein, and wherein the first
rotor is coupled to a pulsator of the washing machine and the second rotor is coupled to a dehydrator thereof; and

a first rotor drive controller installed between the single inverter and the second three-phase stator coil, wherein the first
rotor controller is configured to block or pass the three-phase AC power being applied to the second three-phase stator coil
according to the drive signal from the motor controller to rotate the second rotor in a direction opposite to that of the
first rotor or stop rotation of the second rotor.

US Pat. No. 9,124,161

DOUBLE-STATOR/DOUBLE-ROTOR TYPE MOTOR AND DIRECT DRIVE APPARATUS FOR WASHER USING SAME

AMOTECH CO., LTD., (KR)

1. A direct drive apparatus for a drum-type washing machine in which the direct drive apparatus is provided for a tub to thus
drive a basket, the direct drive apparatus comprising:
a rotor including a first permanent magnet mounted on an inner circumferential surface of a back yoke and a second permanent
magnet mounted on an outer circumferential surface of the back yoke;

a stator unit including an inner stator that faces the first permanent magnet with a first air gap, to generate a first magnetic
field that rotates the rotor, and an outer stator that faces the second permanent magnet with a second air gap, to generate
a second magnetic field that rotates the rotor, to thereby drive the rotor rotatably;

a rotating shaft whose outer circumference is fixedly supported to a central portion of the rotor and whose front end is fixedly
combined with the basket;

a first bearing that is mounted on a central portion of the stator unit and rotatably supports one end of the rotating shaft;
and

a second bearing that is provided in the tub to thus rotatably support the other end of the rotating shaft,
wherein the rotor is placed between the inner stator and the outer stator, to thus form an independent magnetic circuit for
each of the inner stator and the outer stator to thereby perform a double-rotor function,

wherein the stator unit further includes: an inner stator support that supports the inner stator; an outer stator support
that supports the outer stator; an inner extension portion that extends inwards from the inner stator support; and an outer
extension portion that extends outward from the outer stator support, and

wherein the inner stator support, the outer stator support, the outer extension portion and the inner extension portion are
integrally combined as a single piece, and only the outer extension portion is attached to the tub in such a way that the
single piece forms an annular cover covering the rotor.

US Pat. No. 9,712,028

STATOR HAVING THREE-LINE CONNECTION STRUCTURE, BLDC MOTOR USING SAME, AND DRIVING METHOD THEREFOR

Amotech Co., Ltd., Inche...

1. A brushless direct-current (BLDC) motor comprising:
a double rotor having an inner rotor and an outer rotor in which a number of N-pole and S-pole magnets consisting of opposite
polarity are alternately arranged at opposite positions of the inner rotor and the outer rotor facing each other;

a stator having a plurality of split cores that are disposed between the inner rotor and the outer rotor and having slots
therebetween, and on which coils of three phases are connected and wound in a three-phase drive method, the plurality of split
cores comprise a number of core groups in which the coils of the respective phases are wound on three consecutive split cores
in sequence of a forward direction, a reverse direction, and a forward direction, and the three consecutive split cores generate
magnetic flux in opposite directions to each other, the number of magnetic poles in the inner rotor and the outer rotor of
the motor being determined by using {(the number of slots/9)×8} and the number of slots is set to a multiple of nine (9);
and

three Hall elements that detect a position signal of the double rotor, angular positions of the Hall elements being set according
to an equation, where an angle between two adjacent Hall elements={(360°/the number of poles)×2÷3}, and wherein drive signals
for the coils are applied by using the position signal of the double rotor detected by the three Hall elements.

US Pat. No. 9,577,554

MULTI-MOTOR DRIVING DEVICE AND APPARATUS AND METHOD OF DRIVING MOTOR FOR WASHING MACHINE USING SAME

AMOTECH CO., LTD., (KR)

1. A motor driving apparatus for a washing machine, in which a motor is a washing machine motor with a double stator and a
double rotor respectively having first and second U-phase, V-phase, and W-phase stator coils, the washing machine motor driving
apparatus comprising:
a motor controller for generating a drive signal in accordance with a washing mode, a rinsing mode and a dewatering mode,
thereby controlling the driving of the motor for the washing machine;

an inverter for generating a three-phase alternating-current (AC) power according to the drive signal, in which any one-phase
AC power of the three-phase AC power is applied in common to any one-phase stator coil of the first and second U-phase, V-phase,
and W-phase stator coils for the washing machine motor; and

a switching unit for switching to apply the remaining two-phase AC power of the three-phase AC power to any two-phase stator
coils of the remaining two-phase stator coils of the first and second U-phase, V-phase, and W-phase stator coils for the washing
machine motor, according to the control of the motor controller.

US Pat. No. 9,774,080

ELECTROMAGNETIC WAVE SHIELDING SHEET FOR ANTENNA, METHOD FOR MANUFACTURING SAME, ANTENNA COMPRISING SAME, AND BATTERY PACK FOR PORTABLE TERMINAL HAVING SAID ANTENNA

AMOTECH CO., LTD., Inche...

1. An electromagnetic wave shielding sheet for an antenna, comprising:
a ferrite sheet;
a heat dissipating layer attached to one side of the ferrite sheet; and
an adhesive layer between the ferrite sheet and the heat-dissipating layer via which the heat-dissipating layer is attached
to the ferrite sheet,

wherein the adhesive layer comprises an acryl-based adhesive,
wherein the adhesive contains Ag and Ni powders in an amount of 10˜30 volume %, based on a total volume thereof, so that the
adhesive can function as a thermal conductor.

US Pat. No. 9,819,085

NFC ANTENNA MODULE AND PORTABLE TERMINAL COMPRISING SAME

Amotech Co., Ltd., Inche...

1. A Near-Field Communication (NFC) antenna module, comprising:
an electromagnetic shielding sheet;
an antenna sheet in which a radiation pattern is formed along a peripheral surface of a central part, the antenna sheet being
stacked on the electromagnetic shielding sheet; and

a radiation sheet stacked on the antenna sheet to form an area that overlaps the radiation pattern, the radiation sheet having
a depression formed to expose the central part,

wherein the radiation sheet forms an area that overlaps a left pattern, a right pattern, and a lower pattern of the radiation
pattern,

wherein the radiation sheet comprises:
a first protrusion formed on a left side of the depression and configured to form an area that overlaps the left pattern of
the radiation pattern;

a second protrusion formed on a right side of the depression and configured to form an area that overlaps the right pattern
of the radiation pattern; and

a base element formed under the depression and configured to form an area that overlaps the lower pattern of the radiation
pattern.

US Pat. No. 9,703,326

ELECTRIC SHOCK PROTECTION DEVICE AND PORTABLE ELECTRONIC DEVICE INCLUDING THE SAME

AMOTECH CO., LTD., Inche...

1. An electric shock protection device disposed between a human body contactable conductor and an internal circuit unit of
an electronic device, the electric shock protection device comprising:
a sintered body where a plurality of sheet layers stacked;
an electric shock protection unit including at least one pair of inner electrodes disposed spaced a predetermined interval
apart from each other inside the sintered body and a pore disposed between the inner electrodes; and

at least one capacitor layer configured to pass communication signals flowing from the conductor,
wherein the pore has an inner wall to which a discharging material layer is applied at a predetermined thickness along a height
direction;

the discharging material comprises a first portion applied along the inner wall of the pore, a second portion outwardly extending
from an upper end of the first portion, and a third portion outwardly extending from a lower end of the first portion;

the second portion contacts one of the pair of inner electrodes and the third portion contacts the other one of the pair of
inner electrodes; and

in order to pass static electricity without causing dielectric breakdown when the static electricity flows from the conductor,
block a leakage current of an external power source flowing from a ground of the circuit unit, and pass communication signals
flowing from the conductor, the following equation is satisfied:

Vbr>Vin
where Vbr is a breakdown voltage of the electric shock protection unit and Vin is a rated voltage of an external power source
of the electronic device.

US Pat. No. 9,644,305

DRIVE MOTOR FOR DRUM WASHING MACHINE

AMOTECH CO., LTD., Inche...

1. A drive motor for a drum washing machine, the drive motor comprising:
a stator including a stator core fixed to a tub and the stator core comprising a plurality of split cores arranged in an annular
form, wherein each of the split cores comprises an outer tooth, an inner tooth formed in opposition to the outer tooth, a
partitioning portion formed between the outer tooth and the inner tooth, and connecting portions formed at both end portions
of the partitioning portion and connecting two neighboring split cores in such a way that the split cores form the annular
form, and wherein a first coil is wound around the outer tooth, and a second coil is wound around the inner tooth, the first
coil and the second coil being separated from each other;

a rotor including a rotor support that is connected to a drum via a rotating shaft, an outer rotor fixed to the rotor support
and arranged with a gap on an outer surface of the stator, to thus be rotated by interacting with the first coil, and an inner
rotor fixed to the rotor support and arranged with a gap on an inner surface of the stator, to thus be rotated by interacting
with the second coil; and

a motor drive circuit configured to control an alternating-current (AC) power to be applied to both the first and second coils
at a washing mode, for driving both the inner and outer rotors simultaneously, and to control the AC power to be applied to
any one of the first and second coils at a dehydration mode, for driving any one of the inner and outer rotors.

US Pat. No. 9,673,676

SINGLE ROTOR TYPE MOTOR AND MANUFACTURNG METHOD THEREOF

AMOTECH CO., LTD., Inche...

1. A single rotor type motor comprising:
a stator including a plurality of stator cores that are split and radially arranged, a bobbin made of an insulating material
and wrapped on an outer surface of each of the stator cores, coils wound on an outer surface of the bobbin, an upper fixing
plate that is disposed on the upper surfaces of the stator cores and on which the stator cores are radially arranged, and
a lower fixing plate that is disposed on the lower surfaces of the stator cores and is coupled with the upper fixing plate,
the stator cores being fastened to both the upper fixing plate and the lower fixing plate,

wherein the stator core comprises:
a rod portion of a plate shape and around which the coils are wound;
a tooth portion that is extensibly formed in a lateral direction on one end of both ends of the rod portion and that is disposed
facing a magnet of the rotor; and

a flange portion that is formed at the other side end of the rod portion, in which the flange portion comprises: a connecting
portion for mutually connecting between the stator cores; and a bolt fastening hole for coupling the stator core, the upper
fixing plate, and the lower fixing plate with a fastening bolt; and

a single rotor disposed with a certain gap from any one surface of an inner surface of the stator and an outer surface thereof,
wherein a plurality of wiring units for electrically connecting between the coils wound around each of the stator cores are
formed integrally on the upper surface of the upper fixing plate,

wherein each of the wiring units comprises: a terminal pocket that is integrally formed on the upper surface of the upper
fixing plate and into which the coils are inserted; and a coil terminal that is made of a metallic material that can be electrified
and is inserted into the terminal pocket for electrically connecting between the coils, and

wherein the lower fixing plate is configured in the form of a disc whose central portion is opened, in which first fastening
bolt holes that are communicated from and coupled with the bolt fastening holes of the stator cores are formed at predetermined
intervals in a circumferential direction of the lower fixing plate, first fixing holes that are in contact with a lower surface
of the upper fixing plate and are communicated from the first fastening holes are formed at predetermined intervals in the
circumferential direction of the lower fixing plate, and a cover portion extending from an outer surface of the stator and
covering the lower surfaces of the stator cores is formed.

US Pat. No. 9,551,347

WATER-PUMP MOTOR USING A WATERPROOF STATOR, AND WATER PUMP

AMOTECH CO., LTD., Inche...

1. A water pump motor having a stator and an inner type rotor disposed inside of the stator, the water pump motor comprising:
a stator including a stator core: the stator core comprising: a plurality of protrusions annularly arranged, wherein each
of the protrusions protrudes in a radial direction, and radial inner portions of neighboring protrusions are connected with
each other to form a physically integral form of the stator core;

a bobbin in which the stator core is embedded except for a radial outer portion of each of the protrusions,
wherein the bobbin comprises:
a plurality of coil winding portions each surrounding a corresponding protrusion except for the radial inner portions and
the radial outer portions of the stator core such that each protrusion is surrounded by a coil winding portion of the bobbin,
a coil wound around the coil winding portions,

an outer flange formed on a radial outer portion of each coil winding portion, and
a ring-shaped inner flange formed on a radial inner portion of each coil winding portion, wherein the ring-shaped inner flange
connects radial inner portions of neighboring coil winding portions to form a cup-shape composed of an open top portion, a
hollow center portion and a closed bottom portion, and wherein a rotor is inserted into the hollow center portion, and a bearing
for the rotor is seated in a groove formed in a center portion of the closed bottom portion; and

an annular back yoke having a plurality of coupling grooves formed on an inner circumferential portion thereof, the radially
outer portions of the stator core being coupled with the coupling grooves.

US Pat. No. 9,966,822

WASHING MACHINE DRIVING APPARATUS AND WASHING MACHINE COMPRISING SAME

AMOTECH CO., LTD., Inche...

1. A washing machine driving apparatus comprising:an outer shaft which is connected with a washing tub;
an inner shaft which is rotatably arranged inside the outer shaft and connected with a pulsator;
an inner rotor which is connected with the outer shaft;
an outer rotor which is connected to the inner shaft; and
a stator which is disposed with an air gap between the inner rotor and the outer rotor,
wherein the stator comprises: stator cores; a bobbin wrapped on an outer surface of each of the stator cores; a first coil wound on one side of each of the stator cores; and a second coil wound on an opposite side to the one side of each of the stator cores,
wherein a first bearing and a second bearing are disposed on an outer circumferential surface of the outer shaft, and the first bearing and the second bearing are mounted in a first bearing housing and a second bearing housing which are fixed to an outer tub, respectively and
wherein an outer tub fixing portion which enables the stator to be fixed on the outer tub is integrally formed with the bobbins.

US Pat. No. 9,896,794

DRIVING APPARATUS FOR DIRECT-DRIVE TYPE WASHING MACHINE

AMOTECH CO., LTD., Inche...

1. A driving apparatus for a direct-drive type washing machine, the driving apparatus comprising:
a support member that is fixed to a lower side of a washing tub;
a dehydrating tub rotating shaft that is rotatably supported on the support member and that is connected to a dehydrating
tub to rotate the dehydrating tub, the dehydrating tub being arranged inside the washing tub;

a pulsator rotating shaft that is rotatably arranged inside the dehydrating tub rotating shaft and that is connected to a
pulsator to rotate the pulsator, the pulsator being arranged inside the dehydrating tub;

a drive motor comprising a double rotor including an outer rotor that is connected to the pulsator rotating shaft and an inner
rotor that is connected to the dehydrating tub rotating shaft, and a double stator including a first stator coil for rotating
the outer rotor and a second stator coil for rotating the inner rotor;

a single inverter that generates a three-phase alternating-current (AC) power to be applied to the first stator coil and the
second stator coil; and

a first rotor drive controller provided between the single inverter and the second stator coil, wherein the first rotor drive
controller is configured to block or pass the three-phase AC power being applied to the second stator coil under control of
a motor controller, to thus control driving of the inner rotor;

a second rotor drive controller that is provided between the single inverter and the first stator coil, and that is configured
to block or pass an application of the three-phase AC power to the first stator coil under the control of the motor controller,
to thus control driving of the outer rotor,

wherein the first rotor drive controller is further configured to change direction of rotation of the inner rotor in case
of performing a washing or rinsing mode, so that the inner rotor rotates in opposite direction to that of the outer rotor.

US Pat. No. 9,905,925

NFC ANTENNA MODULE AND PORTABLE TERMINAL COMPRISING SAME

AMOTECH CO., LTD., Inche...

1. A Near-Field Communication (NFC) antenna module, comprising:
a first antenna sheet provided with a first radiation pattern formed along a peripheral surface of a first central part;
a second antenna sheet provided with a second radiation pattern formed along a peripheral surface of a second central part,
the second radiation pattern being formed to partially overlap the first radiation pattern;

an electromagnetic shielding sheet stacked on both the first antenna sheet and the second antenna sheet; and
a radiation sheet stacked both on the first antenna sheet and on the second antenna sheet and provided with a portion that
overlaps the first radiation pattern and the second radiation pattern.

US Pat. No. 10,047,467

WASHING MACHINE DRIVING APPARATUS AND WASHING MACHINE COMPRISING SAME

AMOTECH CO., LTD., Inche...

1. A washing machine driving apparatus comprising:an outer shaft which is connected with a washing tub, the washing tub being disposed inside an outer tub;
an inner shaft which is rotatably arranged inside the outer shaft and connected with a pulsator;
an inner rotor which is connected with the outer shaft;
an outer rotor which is connected to the inner shaft; and
a stator which is disposed with an air gap between the inner rotor and the outer rotor,
wherein the outer shaft has one end connected to the washing tub and the other end connected to the inner rotor and is directly connected between the washing tub and the inner rotor, and
wherein the inner shaft has one end connected to the pulsator and the other end connected to the outer rotor and is directly connected between the pulsator and the outer rotor,
wherein the outer shaft is rotatably supported by a first bearing and a second bearing, in which the first bearing is fixed to a first bearing housing, the second bearing is fixed to a second bearing housing, and the first bearing housing and the second bearing housing are fixed to the outer tub,
wherein the first bearing housing includes: a stator fixing portion surrounding an outer surface of stator cores; a bearing supporting portion that extends from an inner surface of the stator fixing portion for supporting the first bearing; and an outer tub fixing portion extending from an outer surface of the bearing supporting portion and fixed to the outer tub, and
wherein the first bearing housing further includes: a plurality of first protrusions that are vertically extended from a top surface of the stator fixing portion and that are in contact with an inner surface of the second bearing housing; and a plurality of second protrusions that are arranged at regular intervals away from the plurality of first protrusions, and are in contact with a lower surface of the second bearing housing.

US Pat. No. 9,988,752

WASHING MACHINE MOTOR AND WASHING MACHINE COMPRISING SAME

AMOTECH CO., LTD., Inche...

1. A washing machine motor comprising:an inner rotor;
an outer rotor;
a double stator disposed with an air gap between the inner rotor and the outer rotor, and independently and selectively controlling the inner rotor and the outer and driving the inner rotor and the outer rotor selectively and independently from each other;
a first cylindrical outer shaft connected to the inner rotor;
a second cylindrical outer shaft connected to a washing tub;
a first inner shaft rotatably disposed inside the first cylindrical shaft and connected to the outer rotor;
a second inner shaft rotatably disposed inside the second cylindrical shaft and connected to a pulsator inside the washing tub;
a planetary gear set comprising: a ring gear fixedly coupled to the first cylindrical outer shaft and the second cylindrical outer shaft; a sun gear fixedly coupled to the first inner shaft; a plurality of planetary gears rotatably engaged with an outer surface of the sun gear and an inner surface of the ring gear; and a carrier coupled to the second inner shaft and rotatably supporting the planetary gears, wherein the planetary gear set is configured in such a way that, when a rotational force from the outer rotor is applied to the sun gear through the first inner shaft, a rotational speed of the outer rotor is decelerated through the planetary gears and is transmitted to the pulsator through the carrier and the second inner shaft; and, when a rotational force from the inner rotor is applied to the ring gear through the first cylindrical outer shaft, a rotational speed of the inner rotor is not decelerated and is transmitted to the washing tub through the ring gear and the second cylindrical outer shaft;
a first bearing mounted on an outer surface of the first cylindrical outer shaft and a second bearing mounted on an outer surface of the second cylindrical outer shaft in such a way that the planetary gear set is able to rotate in both directions; and
a control unit configured to control the double stator in such a manner that, when under a washing mode, the outer rotor and the inner rotor are driven in opposite directions to each other simultaneously or with a time delay to thereby generate a vortex water flow due to water flows by the pulsator and the washing tub rotating in opposite directions, and when under a dewatering mode, the outer rotor and the inner rotor are driven simultaneously in a same direction.

US Pat. No. 9,976,243

WASHING MACHINE MOTOR AND WASHING MACHINE COMPRISING SAME

AMOTECH CO., LTD., Inche...

1. A washing machine motor driving apparatus comprising:an outer rotor;
an inner rotor;
a double stator disposed with an air gap between the inner rotor and the outer rotor, and driving the inner rotor and the outer rotor independently;
a first cylindrical outer shaft connected to the outer rotor;
a second cylindrical outer shaft connected to a washing tub;
a first inner shaft rotatably disposed inside the first cylindrical shaft and connected to the inner rotor;
a second inner shaft rotatably disposed inside the second cylindrical shaft and connected to a pulsator inside the washing tub; and
a planetary gear set comprising: a ring gear fixedly coupled to the first cylindrical outer shaft and the second cylindrical outer shaft; a sun gear fixedly coupled to the first inner shaft; a plurality of planetary gears rotatably engaged with an outer surface of the sun gear and an inner surface of the ring gear; and a carrier coupled to the second inner shaft and rotatably supporting the planetary gears,
wherein the planetary gear set is configured in such a way that, when a rotational force from the inner rotor is applied to the sun gear through the first inner shaft, a rotational speed of the inner rotor is decelerated through the planetary gears and is transmitted to the pulsator through the carrier and the second inner shaft; and, when a rotational force from the outer rotor is applied to the ring gear through the first cylindrical outer shaft, a rotational speed of the outer rotor is not decelerated and is transmitted to the washing tub through the ring gear and the second cylindrical outer shaft, thereby being able to rotate the pulsator and the washing tub in the decelerated speed and the non-decelerated speed, respectively, and in opposite directions to each other.

US Pat. No. 9,917,350

MULTI LOOP ANTENNA MODULE AND PORTABLE DEVICE HAVING THE SAME

Amotech Co., Ltd., Inche...

1. A multi loop antenna module comprising:
an antenna sheet having a radiation pattern with two or more loops on a side; and
a magnetic sheet mounted on a rear side of the antenna sheet,
wherein the antenna sheet includes a circuit board having a first non-patterned portion and a second non-patterned portion
and the radiation pattern forming at least two or more loops by being wound around outsides of the first non-patterned portion
and the second non-patterned portion,

wherein the radiation pattern overlaps a non-metallic area, holes being formed through a metallic rear cover of a portable
terminal and the non-metallic area being formed around the holes,

and wherein the radiation pattern forms a first loop by being wound several times around an outside of the first non-patterned
portion overlapping the holes and forms a second loop by being wound several times around an outside of the second non-patterned
portion.

US Pat. No. 10,188,019

ELECTRIC SHOCK PROTECTION CONTACTOR AND PORTABLE ELECTRONIC DEVICE INCLUDING THE SAME

AMOTECH CO., LTD., Inche...

1. An electric shock protection contactor comprising:a conductive connection unit having an elastic force electrically in contact with a conductor of an electronic device;
a conductive adhesive layer; and
an electric shock protection element connected to the conductive connection unit in series via the conductive adhesive layer and blocking a leakage current of an external power source that is introduced from ground of a circuit board of the electronic device,
wherein the electric shock protection element has a breakdown voltage (Vbr) satisfying an equation below:
Vbr>Vin
where Vin is a rated voltage of the external power source of the electronic device,
wherein the electric shock protection element comprises:
a sintered body in which a plurality of sheet layers is stacked;
at least one pair of internal electrodes spaced apart by a predetermined spacing in the sintered body; and
a pore formed between the internal electrodes.

US Pat. No. 10,231,366

ELECTRIC SHOCK PREVENTION APPARATUS

AMOTECH CO., LTD., Inche...

1. An electric shock protection apparatus comprising:a conductive connection part having elastic force comprising an accommodation part which an upper surface is in electrical contact with a conductor of an electronic device and in which a predetermined space is formed at a lower portion;
a circuit board on which the conductive connection part is mounted; and
an electric shock protection device mounted on the circuit board such that at least a portion of the electric shock protection device is disposed at the accommodation part, and blocking a leakage current of an external power source that flows from a ground of the circuit board of the electronic device,
wherein the circuit board comprises a pad and a wiring such that the conductive connection part and the electric shock protection device are electrically connected in series.

US Pat. No. 10,175,727

ELECTRIC SHOCK PROTECTION DEVICE AND MOBILE ELECTRONIC APPARATUS INCLUDING THE SAME

AMOTECH CO., LTD., Inche...

1. An electric shock protection device for connecting between a human body contactable conductor and an internal circuit unit of an electronic device, and passing static electricity by being electrically conducted without causing dielectric breakdown when the static electricity is introduced from the conductor, and blocking a leakage electric current of an external power source by being maintained opened without being electrically conducted when the leakage electric current of the external power source is introduced from a ground of the circuit unit, andwherein the electric shock protection device comprises:
a sintered body in which a plurality of sheet layers comprising a protection sheet layer are stacked;
at least one pair of internal electrodes spaced apart at a predetermined interval, each internal electrode in a pair of internal electrodes disposed on a different sheet layer of the plurality of sheet layers;
a pore defined on the protection sheet layer disposed between the internal electrodes; and
a discharging material layer formed in the pore,
wherein the discharging material layer comprises a first part coated along an inner wall of the pore to a predetermined thickness along a height direction, the first part having a top end and a bottom end, a second part outwardly extending from the top end of the first part along an upper surface of the protection sheet layer, and a third part outwardly extending from the bottom end of the first part along a lower surface of the protection sheet layer,
the second part coming into contact with one internal electrode of the at least one pair of internal electrodes, and
the third part coming into contact with another one of the internal electrodes of the at least one pair of internal electrodes.

US Pat. No. 10,205,489

REAR COVER AND PORTABLE TERMINAL HAVING SAME

AMOTECH CO., LTD., Inche...

1. A rear cover of a portable terminal including an antenna for near-field communication, wherein the rear cover is made of a metallic material and has a slit part formed thereon, and, when the rear cover is mounted on a rear surface of the portable terminal, the antenna for near-field communication and the slit part define an overlapping area;wherein the slit part comprises a plurality of slits extending diagonally from a side of the rear cover;
wherein the rear cover operates as an auxiliary radiator of the antenna for near-field communication through coupling between the rear cover and the antenna for near-field communication in the overlapping area;
wherein a first side of each of the slits is connected to the side of the rear cover, and a second side thereof is connected to another side of the rear cover; and
wherein the rear cover is separated into a plurality of pieces by plurality of slits.

US Pat. No. 10,204,746

SEPARATION MEMBRANE FOR SUPER CAPACITOR, SUPER CAPACITOR COMPRISING SAME, AND MANUFACTURING METHOD THEREFOR

AMOTECH CO., LTD., Inche...

1. A super capacitor comprising:an energy storage assembly in which a plurality of unit modules are stacked;
a sealing member disposed to surround a side portion of the energy storage assembly;
upper and lower plates disposed on upper and lower portions of the energy storage assembly, respectively; and
a roll force compensation member disposed between each of the upper and lower plates and the energy storage assembly and configured to prevent convex bending of a center portion of the energy storage assembly toward the upper and lower plates;
wherein the roll force compensation member is disposed on a central region of each of the upper and lower plates and is provided to have a smaller area than a sectional area of an active material layer provided in the energy storage assembly.

US Pat. No. 10,214,846

WASHING MACHINE DRIVING DEVICE, WASHING MACHINE HAVING SAME, AND CONTROL METHOD THEREFOR

AMOTECH CO., LTD., Inche...

1. An apparatus for driving a washing machine, the apparatus comprising:an outer rotor;
an inner rotor;
a double stator including a stator core, wherein the stator core is formed of a first teeth portion around which a first coil is wound, a second teeth portion around which a second coil is wound, and a partition integrally formed with and between the first teeth portion and the second teeth portion, and wherein the first teeth portion faces the inner rotor with an air gap to drive the inner rotor, the second teeth portion faces the outer rotor with an air gap to drive the outer rotor independently from the inner rotor;
a first cylindrical outer shaft connected to the outer rotor;
a second cylindrical outer shaft connected to a washing tub;
a first inner shaft rotatably disposed inside the first cylindrical shaft and connected to the inner rotor;
a second inner shaft rotatably disposed inside the second cylindrical shaft and connected to a pulsator inside the washing tub; and
a planetary gear set comprising: a ring gear fixedly coupled to the first cylindrical outer shaft and the second cylindrical outer shaft; a sun gear fixedly coupled to the first inner shaft; a plurality of planetary gears rotatably engaged with an outer surface of the sun gear and an inner surface of the ring gear; and a carrier coupled to the second inner shaft and rotatably supporting the planetary gears; and
first and second bearings that are provided at the first cylindrical outer shaft and the second cylindrical outer shaft, respectively,
wherein the planetary gear set is configured in such a way that, when a rotational force from the inner rotor is applied to the sun gear through the first inner shaft, a rotational speed of the inner rotor is decelerated through the planetary gears and the rotational force from the inner rotor is transmitted to the pulsator through the carrier and the second inner shaft with a decelerated rotational speed; and, when a rotational force from the outer rotor is applied to the ring gear through the first cylindrical outer shaft, a rotational speed of the outer rotor is not decelerated and the rotational force from the outer rotor is transmitted to the washing tub through the ring gear and the second cylindrical outer shaft, thereby being able to rotate the pulsator and the washing tub in the decelerated speed and the non-decelerated speed, respectively, and in opposite directions to each other, and drive the washing tub requiring a starting torque larger than that of the pulsator by ouput of the outer rotor providing a toque higher than that of the inner rotor.

US Pat. No. 10,301,757

DRIVE MOTOR FOR DRUM WASHING MACHINE, AND DRUM WASHING MACHINE HAVING SAME

AMOTECH CO., LTD., Inche...

1. A drive motor for a drum washing machine, the drive motor comprising:a cover member attached to a rear surface of a tub of a drum washing machine;
a stator attached to an inner side of the cover member, the stator including a stator core, a bobbin of an insulating material that is wrapped on an outer surface of the stator core, and a coil that is wound around an outer surface of the bobbin;
a rotor that is arranged with a predetermined air gap from the stator core; and
a rotating shaft to which the rotor is fixed, one end portion of the rotating shaft being fixed to a rear surface of a drum disposed inside the tub, the other end portion thereof being rotatably supported in the cover member, and an intermediate portion thereof being rotatably supported in the tub.

US Pat. No. 10,301,761

WASHING MACHINE DRIVING APPARATUS AND WASHING MACHINE INCLUDING SAME

AMOTECH CO., LTD., Inche...

1. A washing machine driving apparatus comprising:a drive motor of a double rotor-double stator structure in which the drive motor comprises an inner rotor and an outer rotor that are controllable independently by a double stator, and optionally generates an inner rotor output and an outer rotor output;
a first inner shaft that transfers the inner rotor output as a first input;
a first outer shaft that is rotatably coupled to an outer periphery of the first inner shaft, and that transfers the outer rotor output as a second input;
a planetary gear unit in which a gear ratio of a transmission output that is generated from a carrier is controlled by the second input is applied to a ring gear through the first outer shaft, when the first input is applied to a sun gear through the first inner shaft; and
a protection unit for protecting the inner rotor in which an outer peripheral portion of the protection unit is supported by the double stator,
wherein the double stator comprises:
a stator core assembly around a number of stator cores, wherein each of the stator cores is formed of a first teeth portion around which a first coil is wound, a second teeth portion around which a second coil is wound, and a partition integrally formed with and between the first teeth portion and the second teeth portion, and wherein the first teeth portion faces the inner rotor with an air gap to drive the inner rotor, the second teeth portion faces the outer rotor with an air gap to drive the outer rotor independently from the inner rotor; and
a stator support that is formed integrally with the stator core assembly and on an outer circumferential portion of which an outer tub is fixed and on an inner circumferential portion of which the first outer shaft is rotatably supported,
wherein the stator support comprises:
a core fixing portion in which the stator cores are mounted;
a bearing fixing portion extending inwardly from the core fixing portion to thus fix a first bearing;
a cover portion extending outwardly from the core fixing portion and that is formed in a cylindrical shape to thus secure the outer rotor; and
an outer tub fixing portion extending outwardly from the cover portion and that is fixed to the outer tub, and
wherein the protection unit is a protective cover, wherein the protective cover is located to cover a lower surface of the inner rotor and an edge of the protective cover is fixed to the stator support.