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. 12, 2024
Filed:
Jun. 04, 2019
Applicant:
Ntn Corporation, Osaka, JP;
Inventor:
Yuuki Naitou, Shizuoka, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 1/278 (2022.01); H02K 1/30 (2006.01); H02K 7/06 (2006.01); H02K 7/116 (2006.01);
U.S. Cl.
CPC ...
H02K 1/278 (2013.01); H02K 1/30 (2013.01); H02K 7/06 (2013.01); H02K 7/116 (2013.01);
Abstract
A rotor unitused in an electric motor, the rotor unitincluding a rotor core, a rotary shaftinserted in an inner periphery of the rotor core, a plurality of magnetsattached to an outer peripheral surface of the rotor core, and a cover membercovering an outer periphery of each of the plurality of the magnets, in which the rotary shaftis provided, on an outer peripheral surface of the rotary shaft, with a caulking partconfigured to restrict an axial movement of the rotor corewith respect to the rotary shaft, and the caulking partis configured to restrict an axial movement of the cover memberwith respect to the rotor core