Lg Electronics Inc.

Lg Magna E-powertrain Co., Ltd.

Kyeonghwan Kim

Dongwon Kim

Youngmin Kim

Hyundong Kim

Jinwoong Kim

Hyunseok Seo

Hojun Shin

Hwanjin Jung

Changwoo Son

Junho Ahn

Chaseung Jun

Byungwook Min

Sungryong Kim

Byungkeol Choi

Wonjung Sung

Gyeongjae Park

Jaehyun Kim

Yangsoo Lee

Heakyung Yoo

Jaemin Kim

Junghyun Park

Jaehoon Lee

Jaewon Chang

Oshin Kwon

Hyojin Ko

Seokhwan Kim

Jongsu Kim

Rayoung Park

Byunghyun Moon

Youngchan Ahn

Seungsuk Oh

Jeongmin Lee

Hyounguk Nam

Junyoung Song

Hyunsoo Seol

A planetary gear assembly includes a carrier shaft supported on a drum shaft by a first fastening member; a coupling shaft including a first shaft portion in the carrier shaft and a first flange portion fixed to the carrier shaft by a second fastening member, a carrier including a second shaft portion in the first shaft portion and a second flange portion positioned at a back side of the first flange portion of the coupling shaft, a sun gear supported on the coupling shaft and supported on a rotor frame by a third fastening member, pinion gears coupled to the second flange portion and tooth-coupled with the sun gear, a ring gear tooth-coupled with the pinion gears, and a gear housing accommodating the sun gear, the pinion gears, and the ring gear.

Washing machine driving system and a washing machine with the same

A stator for a rotating electric machine according to one implementation of the present disclosure includes a stator core having a plurality of slots, and a stator coil formed by electrically connecting a plurality of hairpins inserted into the slots in a preset pattern, wherein the stator coil includes voltage distribution hairpins disposed in a voltage distribution section preset from an end to which power is to be input, wherein the voltage distribution hairpins include a plurality of first and protruding parts protruding from the plurality of slots and extending away from the stator core, wherein one of the plurality of first protruding parts and one of the plurality of second protruding parts are electrically coupled to form a coil pair, and wherein an insulating member is disposed between the first protruding parts and the second protruding parts to insulate between the first and second protruding parts.

Stator for rotating electric machine with overlapping hairpin coils

A laundry apparatus including a cabinet; a first space provided in the cabinet, in which a first treating part provided to treat laundry is installed; a second space provided in the cabinet, in which a second treating part provided to treat laundry is installed; a drawer movably provided in the second space, in which the second treating part is installed; and a rail unit configured to limit vertical and horizontal movement of the drawer with respect to the second space and to guide the outward movement of the drawer. Therefore, laundry may be treated by using the first and second treating parts and vibration and noise generated in the second treating part may be reduced.

Laundry machine

A stator for an electric motor according to the present disclosure includes a stator core having a plurality of slots and teeth, and a stator coil wound via the plurality of slots, wherein the stator coil includes a plurality of hairpins inserted into the plurality of slots and connected in series with one another, wherein the plurality of hairpins is spaced apart from one another by a partial discharge suppression distance to suppress partial discharge between adjacent hairpins, wherein a partial discharge suppression distance between hairpins with a high voltage distribution ratio is farther than a partial discharge suppression distance between hairpins with a low voltage distribution ratio when power is applied to the stator coil. This may result in suppressing reduction of lifespan of the stator coil due to the partial discharge of the hairpins.

Stator for electric motor

The present disclosure provides a stator of an electric rotating machine, a hairpin of a stator of an electric rotating machine, and a manufacturing method thereof. The stator for the electric rotating machine comprises a stator core, and a stator coil comprising hairpins. Each hairpin comprises a conductor, a film surrounding the conductor, a pair of insertion parts configured to be inserted into different slots, and a connection part connecting the insertion parts. The connection part comprises first and second bending parts bent with a predetermined radius of curvature such that the pair of insertion parts are insertable into different layers. The hairpins include first and second hairpins, each of the first and second hairpins configured to protrude from one end of the stator core by different protrusion lengths. Each of the first and second hairpins comprises a region configured to cross each other.

Stator of electric rotating machine, hairpin of stator of electric rotating machine and manufacturing method thereof

The present disclosure provides a motor configured to receive driving power from a connector including power terminals. The motor comprises a housing, a terminal block disposed inside the housing, and at least one terminal located adjacent to the terminal block. The power terminals are configured to penetrate through the terminal block, and the at least one terminal is configured to be brought into contact with the power terminal according to a movement of the connector when hairpin coils are inserted in the connector, such that the driving power is applied to the hairpin coils via the power terminal.

Motor

A motor includes a rotor assembly and a stator. The rotor assembly includes a rotatable shaft extending in an axial direction, a rotor core coupled to the rotatable shaft and having a plurality of holes penetrating through the rotor core in the axial direction, a first end ring coupled to one end of the rotor core and configured to guide oil supplied to the rotor assembly into the plurality of holes, and a second end ring coupled to the opposite end of the rotor core and configured to guide oil passing through the plurality of holes in a radial direction.

The embodiments of the present disclosure provide a shaft structure of a motor, comprising a housing, a stator disposed inside the housing, and a rotor rotatably disposed inside the stator. The stator may comprise a stator core and a coil wound around the stator core, and the rotor may comprise a rotor core and a rotational shaft coupled to the rotor core. The rotational shaft may comprise a plurality of adjusting portions formed on an outer circumferential surface of the rotational shaft to align a center of gravity of the rotor with a center of the rotational shaft.

Shaft structure with adjustment portions for alignment with rotor center of gravity

The present disclosure relates to a switching semiconductor device and a cooling apparatus thereof. The cooling apparatus of the switching semiconductor device of the present disclosure comprises a first heat dissipation plate configured to facilitate heat dissipation of a surface of the semiconductor device at an installation space, and a second heat dissipation plate disposed inside the installation space along a thickness direction of the first heat dissipation plate. The installation space is formed in a predetermined size at the surface of the semiconductor device, and the second heat dissipation plate is configured to contact the first heat dissipation plate so as to allow heat exchange. Accordingly, a heat dissipation area may be increased without increasing a size of the installation space.

Switching semiconductor device and cooling apparatus thereof

The present disclosure relates to a stator for an electric rotating machine, the stator comprising a stator core comprising teeth and slots, and a stator coil comprising a plurality of hairpins configured to be inserted into the slots of the stator core in a predetermined pattern. Each of the plurality of hairpins comprises a conductor and a coating layer surrounding an outer surface of the conductor. The plurality of hairpins comprise a first hairpin configured to be placed in a first section of the stator coil predetermined from an end to which power is to be input, and a second hairpin placed in a section after the first section. The first hairpin provides better insulation performance than the second hairpin, and the first section has a higher voltage distribution ratio than the section including the second hairpin.

Stator for electric rotating machine

A washing apparatus comprising a tub provided inside a cabinet; a drum provided inside the tub so as to be rotatable; a balancer housing installed on the front or rear side of the drum; and a balancing unit that includes a body, a drive motor, and a drive gear, the balancing unit movable in the balancer housing to reduce the eccentricity of the drum, wherein gear teeth are formed along an inner circumferential surface of the balancer housing, and the balancing unit is disposed in the balancer housing such that the drive gear is exposed to the outside of the body of the balancing unit to engage with the gear teeth.

Washing apparatus

The present disclosure relates to a washing machine comprising: a cabinet; a tub which is accommodated in said cabinet, and accommodates wash water therein; a drum which is installed in said tub to be rotated, an accommodates the laundry; a sump which is equipped on the lower part of said tub such that the wash water is collected; a drain chamber which is connected to the lower part of a drain formed on a bottom surface of said sump, and in which the wash water drained from said drain is temporarily stored; a pump which circulates the wash water drained from said drain chamber; and a drain-side circulation flow path which forms a path in which the wash water circulates between said drain chamber and said pump.

Washing machine and method for supplying wash water of washing machine

A laundry treatment apparatus including a cabinet forming an appearance of the apparatus, a drum having a laundry space therein to accommodate laundry, a rotating shaft for rotatably supporting the drum in the cabinet, a balancer including a housing fixed to the drum, an accommodation space defined in the housing, a balancing unit movably provided in the accommodation space, and a housing power line provided in the accommodation space to supply the balancing unit with electric power, a shaft through-hole formed through the rotating shaft, a first power supply unit, fixed to the rotating shaft, including a connection line connected to the housing power line through the shaft through-hole, and a second power supply unit rotatably fixed to the first power supply unit to connect the connection line to a power source.

Growing community of inventors

Seoul, South Korea

Kyeonghwan Kim