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:
May. 12, 2020
Honda Motor Co.,ltd., Tokyo, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A rotor structure of an electric motor includes a rotor and a stator. The rotor is fixed to a motor shaft and rotates integrally with the motor shaft. The stator is fixed around the rotor. The rotor includes a cylindrical rotor core coaxially press-fitted and fixed to the motor shaft, a pair of ring-shaped end surface plates disposed facing two axial end surfaces of the rotor core, and permanent magnets respectively housed in slots penetrating an outer peripheral portion of the rotor core in an axial direction. A plurality of openings in which the permanent magnets are exposed are formed in a circumferential direction in an outer peripheral portion of one of the end surface plates, and a ring-shaped cover that covers the openings is detachably attached to an outer end surface of the outer peripheral portion of the end surface plate.