公开(公告)号：US20200212758A1

公开(公告)日：2020-07-02

申请号：US16731177

申请日：2019-12-31

Applicant: LG Electronics Inc.

Inventor： Kyeonghwan KIM ,  Yangsoo LEE ,  Gyeongjae PARK ,  Hojun SHIN ,  Junho AHN ,  Wonjung SUNG

IPC: H02K7/00 ,  H02K5/26

Abstract: 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.

公开(公告)号：US20210296947A1

公开(公告)日：2021-09-23

申请号：US17039860

申请日：2020-09-30

Applicant: LG ELECTRONICS INC.

Inventor： Hojun SHIN ,  Wonjung SUNG ,  Gyeongjae PARK ,  Jeongmin LEE

IPC: H02K1/16 ,  H02K3/34 ,  H02K3/28 ,  H02K3/12 ,  H02K3/50 ,  H02K15/02 ,  H02K15/10 ,  H02K15/12

Abstract: Disclosed herein are a stator and a method for manufacturing the same. The stator according to embodiments of the present disclosure includes an insulating part and a plurality of stator coils each having two ends electrically connected to form one joint portion. The insulating part is configured to cover at least respective parts of the joint portions, and to provide a distance between neighboring joint portions. Accordingly, a partial discharge caused by a surge between the joint portions of the stator coils may be prevented, allowing operational reliability of the stator to be increased.

公开(公告)号：US20200227971A1

公开(公告)日：2020-07-16

申请号：US16736062

申请日：2020-01-07

Applicant: LG Electronics Inc.

Inventor： Wonjung SUNG ,  Yangsoo LEE ,  Hojun SHIN ,  Kyeonghwan KIM ,  Gyeongjae PARK ,  Junho AHN

IPC: H02K5/22 ,  H02K3/28

Abstract: 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.

公开(公告)号：US20200220408A1

公开(公告)日：2020-07-09

申请号：US16539069

申请日：2019-08-13

Applicant: LG Electronics Inc.

Inventor： Hojun SHIN ,  Kyeonghwan KIM ,  Gyeongjae PARK ,  Wonjung SUNG ,  Yangsoo LEE ,  Junghyun PARK ,  Junho AHN

IPC: H02K3/40 ,  H02K1/16 ,  H02K3/12 ,  H02K3/28 ,  H02K3/34

Abstract: 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.

公开(公告)号：US20200212749A1

公开(公告)日：2020-07-02

申请号：US16539053

申请日：2019-08-13

Applicant: LG Electronics Inc.

Inventor： Wonjung SUNG ,  Yangsoo LEE ,  Hojun SHIN ,  Kyeonghwan KIM ,  Gyeongjae PARK ,  Junho AHN

IPC: H02K3/40 ,  H02K1/16 ,  H02K3/12 ,  H02K3/28 ,  H02K3/34 ,  H02K15/04 ,  H02K15/10

Abstract: 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.