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:
Oct. 16, 2012
Filed:
Dec. 22, 2009
Rui Feng Qin, Hong Kong, CN;
Xin Hui Guan, Shenzhen, CN;
Yi Jing, Shenzhen, CN;
Johnson Electric S.A., La Chaux-de-Fonds, CH;
Abstract
A electric motor has a stator and a rotor. The stator comprises a housing and a plurality of magnets fixed to an inner surface of said housing by a frame member. The magnets are embedded in the frame member. A plurality of first grooves are formed in an outside peripheral surface of the frame member, each of said first grooves extending axially from one axial surface of said frame member and having a axial length smaller than the axial height of said frame member. The housing has a plurality of first anchors formed on its inner surface, each of the first anchors engaging with a corresponding one of the first grooves.