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:
Nov. 23, 2010
Filed:
Jul. 13, 2007
Lijian Wu, Shanghai, CN;
Wanbing Jin, Shanghai, CN;
Jianping Ying, Shanghai, CN;
Shih-ming Huang, Shanghai, CN;
Wen-shi Huang, Shanghai, CN;
Lijian Wu, Shanghai, CN;
Wanbing Jin, Shanghai, CN;
Jianping Ying, Shanghai, CN;
Shih-Ming Huang, Shanghai, CN;
Wen-Shi Huang, Shanghai, CN;
Delta Electronics, Inc., Taoyuan Hsien, TW;
Abstract
A permanent magnet motor is provided. The permanent magnet motor includes a stator having a stator shaft having an outer surface, K salient teeth formed upon the outer surface, and K winding slots formed among the K salient teeth, and a rotor having a first inner surface facing the outer surface, and P pairs of permanent magnets formed on the first inner surface, each of which has a second inner surface facing the outer surface and at least a groove formed on the second inner surface to reduce a cogging torque.