公开(公告)号：US20230120874A1

公开(公告)日：2023-04-20

申请号：US17885859

申请日：2022-08-11

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho KIM ,  Younggeun Min ,  Jiwan Lee ,  Kyungho Ha

IPC: H02K1/276

Abstract: A flux concentrate type rotor may include a shaft; a rotor core; and an arc type permanent magnet having an inner diameter portion and an outer diameter portion. The rotor core includes an annular ring-shaped inner diameter portion core having a shaft through hole, a plurality of outer diameter portion cores arranged along a circumferential direction of the inner diameter portion core on an outer circumferential surface of the inner diameter portion core, and spaced apart from each other to form permanent magnet insertion portion, and a plurality of bridges arranged along the circumferential direction of the inner diameter portion core to correspond to each of the outer diameter portion cores, and connect each of the outer diameter portion cores to the inner diameter portion core. The outer diameter portion core has a first cutout portion positioned at a lower end.