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.

Date of Patent:
Aug. 05, 2014

Filed:

Oct. 21, 2011
Applicants:

James Ching Sik Lau, Hong Kong, CN;

Mao Xiong Jiang, Shenzhen, CN;

Gang LI, Shenzhen, CN;

KE Lin Zhou, Shenzhen, CN;

Hong Min Wei, Shenzhen, CN;

Jie Chai, Shenzhen, CN;

Tao Zhang, Shenzhen, CN;

Inventors:

James Ching Sik Lau, Hong Kong, CN;

Mao Xiong Jiang, Shenzhen, CN;

Gang Li, Shenzhen, CN;

Ke Lin Zhou, Shenzhen, CN;

Hong Min Wei, Shenzhen, CN;

Jie Chai, Shenzhen, CN;

Tao Zhang, Shenzhen, CN;

Assignee:

Johnson Electric S.A., Murten, CH;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 21/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electric motor, especially a brushless PMDC motor, has a stator and a rotor rotatably installed inside of the stator. The stator has a housing with an open end, an end cap fixed to the open end of the housing, a stator core fixed to an inner surface of the housing, and windings wound on the stator core. The rotor includes a plurality of permanent magnetic poles. The housing has a flange bent inwardly from the open end of the housing and abutting against the end cap inwardly and axially to thereby fix the end cap to the housing. The length of the flange measured along the circumferential direction of the housing is greater than half of that of the housing.


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