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. 23, 2012
Filed:
Jan. 12, 2009
Ji Dong Chai, Shenzhen, CN;
Bao Ting Liu, Shenzhen, CN;
Wen Liang LI, Shenzhen, CN;
Zhi Duan Shao, Shenzhen, CN;
Ji Dong Chai, Shenzhen, CN;
Bao Ting Liu, Shenzhen, CN;
Wen Liang Li, Shenzhen, CN;
Zhi Duan Shao, Shenzhen, CN;
Johnson Electric S.A., La Chaux-de-Fonds, CH;
Abstract
A stator for an electric motor has a laminated stator coreformed from a plurality of stacked laminations, and a stator winding formed from a plurality of coilswound on bobbins. The stator corehas a plurality of teethwhich extend radially and alternately spaced between and connected to circumferentially extending yokes. The yokes and the teeth are separately formed with each yokebeing a stack of yoke laminationsand each toothbeing a stack of tooth laminations. The teethare inserted through the bobbinsand arranged in a cylindrical form with each toothextending radially. Yokesare then fixed between radially outer endsof adjacent teeth to complete the radially outer portion of the stator core. Each toothhas a radial location surfacewhich contacts an inner surface of the adjacent yokes. The yokesand teethare fixed together by welding the yokesto the outer endsof the teeth