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:
Oct. 11, 2016

Filed:

Sep. 12, 2014
Applicant:

Johnson Electric S.a., Murten, CH;

Inventors:

Kar Wai Lam, Hong Kong, CN;

Cai Yong Zhang, Shenzhen, CN;

Assignee:

JOHNSON ELECTRIC S.A., Murten, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 21/26 (2006.01); H02K 1/18 (2006.01); H02K 1/17 (2006.01); H02K 5/04 (2006.01);
U.S. Cl.
CPC ...
H02K 1/18 (2013.01); H02K 1/17 (2013.01); H02K 5/04 (2013.01);
Abstract

A stator includes a housing made of magnetically conductive material, a plurality of magnets fixed to the stator housing; and a magnet holder attached to one end of the housing for fixing the magnets to the stator housing. The magnet holder includes a body and a plurality of locking structures extending from the body. Each magnet is locked between two adjacent locking structures. A plurality of cut-outs is formed in the stator housing, and a plurality of projections is formed on the body of the magnet holder and engaged with the cut-outs. Each locking structure includes a wedge-shaped inner end inwardly abutting against respective magnets to prevent the magnets from moving inwardly.


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