公开(公告)号：US20240079919A1

公开(公告)日：2024-03-07

申请号：US18507396

申请日：2023-11-13

Applicant: DENSO CORPORATION

Inventor： Fumiya KAWATE ,  Ritsuro HIRAMATSU ,  Toshihiro UCHIDA

IPC: H02K1/276

CPC classification number: H02K1/276 ,  H02K2201/06 ,  H02K2213/03

Abstract: A rotor includes a plurality of rotor units disposed side by side in an axial direction. The plurality of rotor units each include a rotor core, a plurality of permanent magnets, a plurality of magnetic pole sections and a plurality of magnetic pole bordering sections. At least one of the rotor units has a displacement portion in an outer circumferential surface of the rotor core. The displacement portion is displaced radially inward from respective magnetic pole centers of a circumferentially adjacent pair of the magnetic pole sections toward the magnetic pole bordering section between the pair of the magnetic pole sections. The displacement portion is disposed corresponding to at least one of the magnetic pole bordering sections. The magnetic pole centers of at least one of the rotor units are offset in the circumferential direction with respect to the magnetic pole centers of another of the rotor units.