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:
Dec. 29, 2020
Filed:
May. 23, 2018
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Leyi Zhu, Novi, MI (US);
Edward Chan-Jiun Jih, Troy, MI (US);
Feng Liang, Troy, MI (US);
Michael W. Degner, Novi, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 15/03 (2006.01); H02K 1/27 (2006.01); B32B 37/18 (2006.01); B32B 38/04 (2006.01); B32B 15/01 (2006.01); H02K 15/02 (2006.01);
U.S. Cl.
CPC ...
H02K 15/03 (2013.01); B32B 15/011 (2013.01); B32B 37/18 (2013.01); B32B 38/04 (2013.01); H02K 1/2706 (2013.01); B32B 2038/042 (2013.01); H02K 1/2766 (2013.01); H02K 15/02 (2013.01);
Abstract
An electric machine includes an electrical steel rotor having openings defining magnet pockets and outer side pockets, and having spaced apart axial stripes of increased compressive residual stress layers around a perimeter thereof. The outer side pockets and the perimeter form top bridges therebetween. Each of the axial stripes is aligned with one of the top bridges to strengthen outer edges of the top bridges.