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:
Nov. 01, 2022
Filed:
Apr. 06, 2018
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/30 (2006.01); H02K 1/27 (2022.01); H02K 15/03 (2006.01); H02K 15/12 (2006.01); H02K 21/14 (2006.01); H02K 1/278 (2022.01);
U.S. Cl.
CPC ...
H02K 1/30 (2013.01); H02K 1/278 (2013.01); H02K 15/03 (2013.01); H02K 15/12 (2013.01); H02K 21/14 (2013.01);
Abstract
A rotor includes: a plurality of permanent magnets divided at regular intervals in a circumferential direction around a shaft, and provided in an axial direction; a first protection ring for positioning and holding ends in the axial direction of the permanent magnets; a second protection ring for positioning and holding other ends in the axial direction of the permanent magnets; and a protection cover covering outer circumferential surfaces of the permanent magnets, the first protection ring, and the second protection ring, and having a uniform thickness in a radial direction.