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:
Mar. 19, 2024
Filed:
Dec. 09, 2020
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Alireza Fatemi, Canton, MI (US);
Anil K. Sachdev, Rochester Hills, MI (US);
Jian Yao, Shanghai, CN;
Anthony M. Coppola, Rochester Hills, MI (US);
Thomas W. Nehl, Shelby Township, MI (US);
Chengwu Duan, Shanghai, CN;
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/02 (2006.01); H01F 1/032 (2006.01); H01F 1/053 (2006.01); H01F 41/02 (2006.01); H02K 1/2793 (2022.01); H02K 1/32 (2006.01); H02K 15/03 (2006.01); H02K 21/24 (2006.01);
U.S. Cl.
CPC ...
H02K 1/02 (2013.01); H01F 1/032 (2013.01); H01F 1/053 (2013.01); H01F 41/0253 (2013.01); H01F 41/0266 (2013.01); H02K 1/2793 (2013.01); H02K 1/32 (2013.01); H02K 15/03 (2013.01); H02K 21/24 (2013.01);
Abstract
A bi-material permanent magnet for an electric machine includes a core including a first magnetic material and a shell portion located on the core and made of a second magnetic material. The first magnetic material comprises a magnet material with an energy less than 20 Mega Gauss Oersteds (MGOe). The second magnetic material comprises a magnet material with an energy greater than 30 MGOe.