公开(公告)号：US20210167647A1

公开(公告)日：2021-06-03

申请号：US17030928

申请日：2020-09-24

Applicant: LG Electronics Inc.

Inventor： Hyoung Uk NAM ,  Hyojin KO ,  Jun Young SONG

IPC: H02K1/27 ,  H02K21/22

Abstract: A vibration and noise reduction motor, a rotor magnetizing structure of a motor, and a skew magnetizing yoke. The vibration and noise reduction motor includes a stator that is concentric with a shaft and axially fixed and a rotor including a rotor core configured to surround the stator and a plurality of block magnets disposed in the rotor core and configured to face the stator and surround the stator, where an air gap is provided between the plurality of block magnets and the stator, and each piece of the plurality of block magnets includes a plurality of poles and the plurality of block magnets are magnetized by a skew magnetizing yoke and has a continuous skew shape such that the plurality of poles provided for each piece are each inclined by a skew angle of the skew magnetizing yoke.

公开(公告)号：US20200282822A1

公开(公告)日：2020-09-10

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 ,  B60G3/00 ,  B60G11/00 ,  G01R33/07 ,  G01R33/00 ,  H02K5/16 ,  H02K7/00 ,  H02K7/08 ,  H02K11/215 ,  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：US20200373806A1

公开(公告)日：2020-11-26

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

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.

公开(公告)号：US20200240067A1

公开(公告)日：2020-07-30

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 ,  D06F37/40 ,  D06F23/00 ,  D06F37/36 ,  D06F33/36 ,  D06F33/40 ,  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.