公开(公告)号：US11613837B2

公开(公告)日：2023-03-28

申请号：US16752383

申请日：2020-01-24

Applicant: LG Electronics Inc.

Inventor： Hyoung Uk Nam ,  Hyojin Ko ,  Jin Hong

IPC: D06F37/30 ,  D06F37/36 ,  D06F37/40 ,  H02K29/08 ,  D06F105/48 ,  D06F33/36 ,  D06F33/40 ,  D06F23/00 ,  F16D28/00 ,  H02K7/108 ,  H02K49/10

Abstract: A driving device for a washing machine includes: a shaft including an inner shaft and an outer shaft surrounding the inner shaft; a motor assembly including a stator, a rotor that surrounds the stator, a modulator that surrounds the rotor, and a magnetic gear rotating body that surrounds the modulator; a first fixation body that connects between the inner shaft and the magnetic gear rotating body; a second fixation body having one end connected to the stator and the other end connected to a tub; and an electronic clutch that disconnects the outer shat and the rotor or connects the inner shaft and the rotor according to an operation mode of the washing machine. The modulator adjusts a speed and torque of the magnetic gear rotating body. The driving device may make a motor drive area highly efficient and may reduce electric consumption.

公开(公告)号：US11565582B2

公开(公告)日：2023-01-31

申请号：US16765741

申请日：2019-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Seung-Suk Oh ,  Hyoung Uk Nam ,  Eul Pyo Hong

IPC: B60K7/00 ,  H02K11/215 ,  B60G3/00 ,  B60G11/00 ,  G01R33/00 ,  G01R33/07 ,  H02K5/16 ,  H02K7/00 ,  H02K7/08 ,  H02K21/22

Abstract: The present invention relates to an in-wheel motor driving apparatus for reducing weight, improving Hall sensor assembly performance, and reducing a defect rate. According to one embodiment of the present invention, the weight of an in-wheel motor can be reduced by separating a suspension housing and a shaft and applying different materials thereto. Furthermore, the ease of assembling a Hall sensor can be improved, and the defect rate can be reduced.

公开(公告)号：US11072880B2

公开(公告)日：2021-07-27

申请号：US15930796

申请日：2020-05-13

Applicant: LG Electronics Inc.

Inventor： Hyoung Uk Nam ,  Seung-Suk Oh ,  Jin Hong

IPC: F16H1/46 ,  B60K17/16 ,  D06F37/36 ,  D06F23/02 ,  D06F37/20 ,  F16H1/28 ,  F16H57/02

Abstract: A driving device for a washing machine includes a motor comprising a stator and a rotor configured to rotate inside the stator, a shaft configured to receive torque of the motor and rotate an inner tub of the washing machine, a planetary gear located at a front end of the shaft and configured to adjust a rotation speed of the inner tub by changing the torque of the motor at a preset reduction gear ratio, and an electronic clutch located between the shaft and the planetary gear and configured to operate to adjust connection and disconnection between the shaft and the planetary gear according to an operation mode change signal of the washing machine.

公开(公告)号：US11569704B2

公开(公告)日：2023-01-31

申请号：US16881342

申请日：2020-05-22

Applicant: LG ELECTRONICS, INC.

Inventor： Jaekwang Nam ,  Hyoung Uk Nam ,  Jin Hong

IPC: H02K5/10 ,  B60B7/00 ,  B60B7/14 ,  B60B21/00 ,  B60B21/10 ,  B60K7/00 ,  H02K3/50 ,  H02K7/00 ,  H02K21/22

Abstract: The present invention relates to an in-wheel motor. The in-wheel motor according to an embodiment of the present invention includes: a circular rim to which a tire is coupled by being wrapped around an outer ring thereof and a shaft is connected by passing through a center thereof; a motor assembly which is disposed in an inner portion of the rim and includes a stator connected to the shaft and a rotor disposed to be wrapped around the stator and configured to rotate; a cover coupled to cover one open side surface of the rim and configured to seal the inner portion of the rim; and a lead-out wire entry/exit portion waterproof structure configured to seal an entry/exit portion for a lead-out wire connected to supply power from outside of the in-wheel motor to the inner portion of the rim via a hollow portion of the shaft, wherein the lead-out wire entry/exit portion waterproof structure includes an elastic stopper, to which the lead-out wire is connected to pass through a center thereof and which is configured to be elastically contracted after being inserted into the hollow portion of the shaft in an axial direction and seal between the hollow portion of the shaft and the lead-out wire, and a stopper fixing body fastened to the shaft and configured to press the elastic stopper in the axial direction so that the elastic stopper is inserted and fixed inside the hollow portion of the shaft.