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.