公开(公告)号：US20230057656A1

公开(公告)日：2023-02-23

申请号：US17570130

申请日：2022-01-06

Applicant: LG ELECTRONICS INC.

Inventor： Joohang KANG ,  Youngchan AHN ,  Hyeonho HA

IPC: F16K5/06 ,  F16K31/04 ,  F16K31/524

Abstract: A valve actuator includes: a housing, a motor that is disposed in the housing and that includes a motor shaft, a drive gear coupled to the motor shaft, a transfer gear that engages with the drive gear and that is configured to, based on the drive gear rotating, be rotated according to a predetermined gear ratio, an output shaft disposed in the housing, an output gear that is coupled to the output shaft and that engages with the transfer gear, and a stopper that is disposed in the housing and that is configured to control a rotation radius of the output gear. The transfer gear comprises an inner part, an outer part disposed at an outside of the inner part, a first magnet disposed at the outer part, and a second magnet that is disposed at the inner part and that faces the first magnet.

公开(公告)号：US20240235350A9

公开(公告)日：2024-07-11

申请号：US18207519

申请日：2023-06-08

Applicant: LG Electronics Inc.

Inventor： Hyeonho HA ,  Joohang KANG

IPC: H02K21/02 ,  D06F37/30

CPC classification number: H02K21/024 ,  D06F37/304

Abstract: A system for driving a washing machine includes a housing; a plurality of supports extending from the housing in a vertical direction and spaced apart therefrom in a circumferential direction; a supporter supported by the plurality of supports and extending in a circumferential direction; a stator movably coupled to the plurality of supports in a vertical direction; a rotor facing the stator; an output shaft coupled to the rotor and bearing-coupled to the housing; a plurality of cam guides extending radially inward of the stator; and an actuator for adjusting an area where the stator and the rotor face each other by moving the plurality of cam guides in a vertical direction.

公开(公告)号：US20240136901A1

公开(公告)日：2024-04-25

申请号：US18207519

申请日：2023-06-07

Applicant: LG Electronics Inc.

Inventor： Hyeonho HA ,  Joohang KANG

IPC: H02K21/02 ,  D06F37/30

CPC classification number: H02K21/024 ,  D06F37/304

Abstract: A system for driving a washing machine includes a housing; a plurality of supports extending from the housing in a vertical direction and spaced apart therefrom in a circumferential direction; a supporter supported by the plurality of supports and extending in a circumferential direction; a stator movably coupled to the plurality of supports in a vertical direction; a rotor facing the stator; an output shaft coupled to the rotor and bearing-coupled to the housing; a plurality of cam guides extending radially inward of the stator; and an actuator for adjusting an area where the stator and the rotor face each other by moving the plurality of cam guides in a vertical direction.

公开(公告)号：US20230344297A1

公开(公告)日：2023-10-26

申请号：US18342351

申请日：2023-06-27

Applicant: LG Electronics Inc.

Inventor： Joohang KANG ,  Hyeonho HA ,  Yongdae KIM ,  Jin HONG

IPC: H02K3/52 ,  H02K9/06 ,  H02K3/34 ,  H02K1/14

CPC classification number: H02K3/345 ,  H02K1/146 ,  H02K3/34 ,  H02K3/522 ,  H02K9/06

Abstract: An electric motor assembly includes a stator and a rotor configured to rotate relative to the stator. The stator includes a stator core including a yoke that has a ring shape and a plurality of teeth radially coupled to an inner surface of the yoke, a stator coil that is wound around the stator core, and an insulator disposed between the stator core and the stator coil. The insulator includes a yoke insulator that is coupled to the yoke with a first coupling tolerance defined between the yoke insulator and the plurality of tooth insulators, and a plurality of tooth insulators that are coupled to the plurality of teeth, respectively, with a second coupling tolerance defined between the yoke and the plurality of teeth. The first coupling tolerance is less than the second coupling tolerance.

公开(公告)号：US20220109348A1

公开(公告)日：2022-04-07

申请号：US17406691

申请日：2021-08-19

Applicant: LG Electronics Inc.

Inventor： Joohang KANG ,  Hyeonho HA ,  Yongdae KIM ,  Jin HONG

IPC: H02K9/06 ,  H02K3/34 ,  H02K3/52 ,  H02K1/14

Abstract: An electric motor assembly includes a stator and a rotor configured to rotate relative to the stator. The stator includes a stator core including a yoke that has a ring shape and a plurality of teeth radially coupled to an inner surface of the yoke, a stator coil that is wound around the stator core, and an insulator disposed between the stator core and the stator coil. The insulator includes a yoke insulator that is coupled to the yoke with a first coupling tolerance defined between the yoke insulator and the plurality of tooth insulators, and a plurality of tooth insulators that are coupled to the plurality of teeth, respectively, with a second coupling tolerance defined between the yoke and the plurality of teeth. The first coupling tolerance is less than the second coupling tolerance.