公开(公告)号：US20220181954A1

公开(公告)日：2022-06-09

申请号：US17598297

申请日：2020-01-10

申请人： NIDEC CORPORATION

发明人： Junya TANAKA ,  Tomoya UEDA

IPC分类号： H02K15/03 ,  H02K1/2713

摘要： One aspect of a method of manufacturing a rotor of the present invention is the method of manufacturing the rotor, which includes a rotor core rotatable about a central axis and a rotor magnet fixed to an outer peripheral surface of the rotor core, the method including a magnetization step of magnetizing a first magnetic member fixed to the outer peripheral surface of the rotor core to form the rotor magnet. The rotor core has a hole recessed from a surface on one side in an axial direction of the rotor core to the other side in the axial direction. In the magnetization step, the first magnetic member is magnetized in a state where a second magnetic member made of a magnetic material is inserted into the hole.