公开(公告)号：US10790714B2

公开(公告)日：2020-09-29

申请号：US16322431

申请日：2017-07-14

Applicant: CONTINENTAL AUTOMOTIVE GmbH

Inventor： Tao Sun ,  Lu Wang ,  Xiangguang Cao

IPC: H02K1/27

Abstract: A rotor for a brushless electric machine, having: a rotor core; a rotor shaft, installed inside the rotor core; multiple U-shaped holes are formed in the rotor core, each of the U-shaped holes including a first magnet installation hole, a second magnet installation hole and a hardening material filling hole formed by a bottom space of the U-shaped hole. A groove structure is formed on the rotor core forming a first surface of the hardening material filling hole, with the width of a groove opening of the groove structure being smaller than the width of the bottom of the groove. The rotor for a brushless electric machine provided in the present invention has the advantages of low internal magnetic circuit losses and a stable mechanical structure.