公开(公告)号：US10594178B2

公开(公告)日：2020-03-17

申请号：US15258825

申请日：2016-09-07

Applicant: LG ELECTRONICS INC.

Inventor： Seungsuk Oh ,  Dosun Kim ,  Hyounguk Nam ,  Jangwon Lee ,  Heon Lee ,  Jaemin Kim

IPC: H02K21/12 ,  H02K1/27

Abstract: Disclosed are a rotor that is capable of more efficiently using magnetic flux from magnets and a motor including the same. The rotor includes a plurality of rotor cores, a plurality of magnets magnetized such that magnetic flux is formed in the circumferential direction, the magnets and the rotor cores being alternately arranged in the circumferential direction, a coupler connected to a shaft, and a rotor frame formed by injection molding, the rotor frame being integrally coupled to the rotor cores, the magnets, and the coupler, wherein each of the rotor cores includes a pole shoe for defining a gap between each of the rotor cores and a stator and a rotor core body having a depression formed in the side opposite to the pole shoe in the radial direction, and portions of side surfaces of corresponding ones of the magnets located at opposite sides of each of the rotor cores are exposed by the depression to define an aperture formed in the circumferential direction.

公开(公告)号：US10326325B2

公开(公告)日：2019-06-18

申请号：US15258878

申请日：2016-09-07

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon Lee ,  Seungsuk Oh ,  Heon Lee ,  Junho Ahn ,  Jaemin Kim ,  Dosun Kim ,  Hyounguk Nam

IPC: H02K21/12 ,  H02K1/27 ,  H02K1/30 ,  H02K1/32

Abstract: Disclosed are a rotor that is capable of more efficiently using magnetic flux from magnets and a motor including the same. The rotor includes a plurality of rotor cores, a plurality of magnets magnetized such that magnetic flux is formed in the circumferential direction, the magnets and the rotor cores being alternately arranged in the circumferential direction, a coupler connected to a shaft, and a rotor frame including a coupler base connected to the coupler, an extension base extending from the coupler base in the radial direction, and a rotary base extending from the extension base in the axial direction of the shaft for supporting the rotor cores and the magnets while surrounding the rotor cores and the magnets, wherein the coupler base, the extension base, and the rotary base are integrally formed by injection molding, and the rotor frame is coupled to the coupler, the rotor cores, and the magnets, and wherein the extension base is provided with crossing ribs that cross in the radial direction.

公开(公告)号：US11509204B2

公开(公告)日：2022-11-22

申请号：US16488099

申请日：2018-02-06

Applicant: LG ELECTRONICS INC.

Inventor： Hyounguk Nam ,  Seungsuk Oh ,  Dosun Kim

IPC: H02K1/18 ,  H02K7/08 ,  H02K16/02 ,  H02K21/24 ,  D06F37/30

Abstract: An axial air gap motor comprises: a frame; a stator that is arranged in an outer side of the frame in a radial direction; a first rotor that is spaced from one side of the stator in an axial direction, that has an air gap therebetween, and that is rotatably arranged in one side of the frame; and a second rotor that is spaced from the other side of the stator in the axial direction, that has an air gap therebetween, that is rotatably arranged in the other side of the frame, and that is connected with the first rotor in the axial direction.

公开(公告)号：US11165322B2

公开(公告)日：2021-11-02

申请号：US16489868

申请日：2018-01-30

Applicant: LG ELECTRONICS INC.

Inventor： Hyojin Ko ,  Seungsuk Oh ,  Dosun Kim

IPC: H02K21/02 ,  H02K1/02

Abstract: The present invention relates to a variable-flux motor comprising: a stator having stator coils; and a rotor disposed to be rotatable with respect to the stator with an air gap interposed therebetween, wherein the rotor comprises: a rotor core; a fixed magnet disposed along the radial direction of the rotor core, and of which one end portion is disposed adjacently to the air gap; and a variable magnet disposed inside the fixed magnet along the radial direction of the rotor core, and the variable magnet is formed such that a magnetic flux thereof varies when a preset current is applied to the stator coils. Therefore, use of an expensive permanent magnet can be excluded.

公开(公告)号：US11114965B2

公开(公告)日：2021-09-07

申请号：US16498159

申请日：2018-03-08

Applicant: LG ELECTRONICS INC.

Inventor： Hyojin Ko ,  Seungsuk Oh ,  Hyounguk Nam

IPC: H02P21/22 ,  H02P21/18 ,  H02P21/26 ,  H02P21/12 ,  H02P21/14 ,  H02P27/06

Abstract: The present specification relates to a motor control module, a motor control device, a motor control system, and a motor control method, and the purpose of the present specification is to provide a motor control module, a motor control device, a motor control system, and a motor control method, which control driving current applied to a motor according to an operating condition of a variable magnetic motor so as to enable magnetic force in the motor to be controlled.