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:
Feb. 04, 2014
Filed:
Sep. 16, 2011
Yue LI, Hong Kong, CN;
Mao Xiong Jiang, Shenzhen, CN;
Jian Zhao, Shenzhen, CN;
Yong LI, Shenzhen, CN;
Hai Jun Hua, Shenzhen, CN;
Yue Li, Hong Kong, CN;
Mao Xiong Jiang, Shenzhen, CN;
Jian Zhao, Shenzhen, CN;
Yong Li, Shenzhen, CN;
Hai Jun Hua, Shenzhen, CN;
Johnson Electric S.A., Murten, CH;
Abstract
A permanent magnet electric motor includes a rotor and a stator magnetically coupled to the rotor. The rotor includes a shaft, a rotor core fixed to the shaft and having n teeth, n being an integer, a commutator fixed to the shaft adjacent the rotor core and having m segments, m being an even number less than n. Rotor windings are wound about the teeth and connected to the segments. The stator includes a plurality of permanent magnets surrounding the rotor core and brushes in sliding electrical contact with the commutator.