US 11,722,024 B2
Interior permanent magnet motor with magnetic flux guiding component
Jaemin Lee, Seoul (KR); Youngjun Ahn, Seoul (KR); Kilyoung Kim, Seoul (KR); Junho Lee, Seoul (KR); Jihwan Kong, Seoul (KR); and Taeseok Jeong, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Feb. 2, 2021, as Appl. No. 17/165,329.
Claims priority of application No. 10-2020-0051545 (KR), filed on Apr. 28, 2020.
Prior Publication US 2021/0336497 A1, Oct. 28, 2021
Int. Cl. H02K 1/27 (2022.01); H02K 1/276 (2022.01); H02K 21/16 (2006.01); H02K 11/215 (2016.01)
CPC H02K 1/2773 (2013.01) [H02K 11/215 (2016.01); H02K 21/16 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An interior permanent magnet (IPM) motor comprising:
a stator;
a rotor that is configured to rotate with respect to the stator and that includes:
a hub;
a plurality of spokes that extend outward in a radial direction from the hub;
a plurality of slots that are defined between the plurality of spokes; and
a plurality of permanent magnets that are disposed in the plurality of slots, respectively;
a sensor that is disposed adjacent to the rotor and that is configured to detect a position of each of the plurality of permanent magnets; and
a cover disposed at a circumferential edge of the rotor and extending along a circumferential direction, the cover at least partially covering the circumferential edge of the rotor and being configured to guide, based on rotation of the rotor with respect to the stator, magnetic flux of each of the plurality of permanent magnets toward the sensor,
wherein the cover includes a plurality of windows that correspond to the plurality of permanent magnets, respectively, and
wherein the plurality of windows are disposed on center lines of the plurality of slots, respectively, that extend in the radial direction.