公开(公告)号：US11601021B2

公开(公告)日：2023-03-07

申请号：US16836950

申请日：2020-04-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Mitsuo Saitoh ,  Naoki Nojiri ,  Hideaki Hamada ,  Kenji Tanimoto ,  Fumihiko Kawai ,  Yukio Nishikawa

IPC: H02K1/02 ,  H02K1/16 ,  H02K29/03

Abstract: A motor includes a rotor and a stator. The stator is formed by laminating a plurality of magnetic thin strips each having a plurality of teeth parts. The magnetic thin strip includes an elliptical-shaped inner diameter part formed along tip end portions of the plural teeth parts. At least one magnetic thin strip in the laminated magnetic thin strips is shifted by a given angle with respect to other magnetic thin strips in a horizontal direction, and positions of all teeth parts of the laminated magnetic thin strips correspond to one another to reduce cogging torque.