公开(公告)号：US11728706B2

公开(公告)日：2023-08-15

申请号：US17406691

申请日：2021-08-19

Applicant: LG Electronics Inc.

Inventor： Joohang Kang ,  Hyeonho Ha ,  Yongdae Kim ,  Jin Hong

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

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：US11056950B2

公开(公告)日：2021-07-06

申请号：US16512471

申请日：2019-07-16

Applicant: LG ELECTRONICS INC.

Inventor： Taeyong Jung ,  Youngil Park ,  Haerim Yang ,  Hyeonho Ha

IPC: H02K9/19 ,  H02K1/32 ,  H02K11/21 ,  H02K7/00

Abstract: A motor includes a rotary shaft having at least one spray hole for spraying a cooling fluid, a rotor installed on the rotary shaft, and a stator surrounding an outer circumference of the rotor, wherein the rotor includes a plurality of rotor blocks arranged on an outer circumference of the rotary shaft. Each of the rotor blocks may include a magnet installed at a rotor core and a cooling guide may be disposed between a pair of the plurality of rotor blocks and form a spray flow path for guiding a cooling fluid that has passed through the spray hole to be sprayed in a direction toward an inner circumference of the stator.

公开(公告)号：US12149140B2

公开(公告)日：2024-11-19

申请号：US18342351

申请日：2023-06-27

Applicant: LG Electronics Inc.

Inventor： Joohang Kang ,  Hyeonho Ha ,  Yongdae Kim ,  Jin Hong

IPC: H02K3/34 ,  H02K1/14 ,  H02K3/52 ,  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：US12104714B2

公开(公告)日：2024-10-01

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

CPC classification number: F16K5/0647 ,  F16K31/047 ,  F16K31/52425

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：US20200328657A1

公开(公告)日：2020-10-15

申请号：US16512471

申请日：2019-07-16

Applicant: LG ELECTRONICS INC.

Inventor： Taeyong Jung ,  Youngil Park ,  Haerim Yang ,  Hyeonho Ha

IPC: H02K9/19 ,  H02K1/32 ,  H02K7/00 ,  H02K11/21

Abstract: A motor includes a rotary shaft having at least one spray hole for spraying a cooling fluid, a rotor installed on the rotary shaft, and a stator surrounding an outer circumference of the rotor, wherein the rotor includes a plurality of rotor blocks arranged on an outer circumference of the rotary shaft. Each of the rotor blocks may include a magnet installed at a rotor core and a cooling guide may be disposed between a pair of the plurality of rotor blocks and form a spray flow path for guiding a cooling fluid that has passed through the spray hole to be sprayed in a direction toward an inner circumference of the stator.