公开(公告)号：US20210376684A1

公开(公告)日：2021-12-02

申请号：US17329154

申请日：2021-05-25

Applicant: NIDEC CORPORATION

Inventor： Quang DANH Ho ,  Yuhei YAMAGUCHI

IPC: H02K5/16 ,  H02K7/08 ,  F16C35/00

Abstract: Provided is a motor including: a rotor, a stator, a first and second bearing, a support member, a housing including a first flat part and a cylindrical part, and a bearing holder. The cylindrical part includes: a first inner circumferential surface inside which is provided the stator; a second inner circumferential surface, a distance from the second inner circumferential surface to a central axis being greater than a distance from the first inner circumferential surface to the central axis, and the second inner circumferential surface contacting an outer circumferential surface of the bearing holder; and a stepped surface, connecting the first and the second inner circumferential surfaces, and contacting a lower surface of the bearing holder. The housing further includes a riveting part located on the second inner circumferential surface of the cylindrical part and fixing the bearing holder to the second inner circumferential surface of the cylindrical part.