公开(公告)号：US10348141B2

公开(公告)日：2019-07-09

申请号：US15266587

申请日：2016-09-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami ,  Haruhiko Kado ,  Kiyomi Kawamura

IPC: H02K1/16 ,  H02K21/16 ,  H02K3/18 ,  H02K1/14 ,  H02K29/03 ,  H02K1/27

Abstract: A motor of this invention comprises a rotor having a permanent magnet, the number of which magnet poles is P, and a stator including M pcs of teeth, the teeth arranged in a circumferential direction in a manner to face the permanent magnet through a spatial gap, wherein the stator includes stator core having the number M of the teeth, and a winding wire wound about each of the tooth, wherein the number P of the magnet poles and the number M of the teeth have a relation defined by formulae (2/3)M