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:
Aug. 15, 2023
Filed:
Dec. 14, 2020
Applicant:
Skf Magnetic Mechatronics, Saint-Marcel, FR;
Inventors:
Erwan Salahun, Groix, FR;
Joaquim Da Silva, Sennely, FR;
Bruno Tellier, Saint-Julien-de-la Liegue, FR;
Assignee:
SKF MAGNETIC MECHATRONICS, Saint-Marcel, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 1/02 (2006.01); H02K 7/09 (2006.01); H02K 15/02 (2006.01); H02K 1/17 (2006.01); H02K 1/27 (2022.01);
U.S. Cl.
CPC ...
H02K 1/02 (2013.01); H02K 7/09 (2013.01); H02K 15/02 (2013.01); H02K 1/17 (2013.01); H02K 1/27 (2013.01); H02K 2201/09 (2013.01);
Abstract
A lamination stack for use in a rotating electrical machine includes a plurality of sheets of ferritic material. Each of the sheets has first and second sides that include asperities, and the asperities have a height of about two microns and a width of about two microns. A layer of electrically insulating material is provided between adjacent pairs of the ferritic sheets in the stack, and the asperities extend into the electrically insulating material.