公开(公告)号：US20210313858A1

公开(公告)日：2021-10-07

申请号：US17135276

申请日：2020-12-28

Applicant: LG ELECTRONICS INC.

Inventor： Wonjung Sung ,  Jaemin Kim ,  Gyeongjae Park ,  Jeongmin Lee

IPC: H02K5/20 ,  H02K9/193

Abstract: A motor according to an embodiment of the present disclosure may include a housing comprising an accommodation space and a refrigerant supply hole; a stator core disposed in the accommodation space and coupled to an inner circumferential surface of the housing; a rotor core rotatably disposed in the accommodation space; a shaft coupled to a central portion of the rotor core; and a refrigerant supply groove formed as a recess in a portion of the inner circumferential surface of the housing adjacent to a location where the inner circumferential surface of the housing is coupled to the stator core. The refrigerant supply groove may comprise a main groove communicating with the refrigerant supply hole and extending in a circumferential direction of the stator core; and a plurality of branched grooves extending in an axial direction from both sides of the main groove.