The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2017
Filed:
Aug. 24, 2012
Yue LI, Hong Kong, CN;
Jin Yun Gan, Hong Kong, CN;
Chui You Zhou, Hong Kong, CN;
Cheng Xue, Shenzhen, CN;
Ya Ming Zhang, Shenzhen, CN;
Yue Li, Hong Kong, CN;
Jin Yun Gan, Hong Kong, CN;
Chui You Zhou, Hong Kong, CN;
Cheng Xue, Shenzhen, CN;
Ya Ming Zhang, Shenzhen, CN;
JOHNSON ELECTRIC S.A., Murten, CH;
Abstract
A brushless motor has a stator and an outer rotor. The stator includes a stator core having 6N teeth and 6N coils wound respectively around the teeth where N is an integer equal to or greater than 1. The rotor includes 6N±2 permanent magnets. The permanent magnets are arranged circumferentially around the stator core and face the teeth across an air gap. The radial thickness of the air gap is uneven along the circumferential direction of the motor.