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:
Dec. 25, 2018
Filed:
Jan. 20, 2016
Denso Corporation, Kariya, Aichi-pref., JP;
Jirou Hayashi, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A frame of an electric motor opens in one end. A heat sink, to which a control substrate is connected, closes an opening of the frame. A stator is positioned on an inner circumferential surface of the frame to be movable in an axis of rotation direction. A fastening bolt penetrates through the heat sink and a motor cover to fasten to the frame, thereby holding the stator between a pressing portion formed on the heat sink and a stepped portion formed on the inner circumferential surface to fix the stator to the frame. A disc spring is interposed between a front bearing that retains a rotor shaft and a spring retainer formed in the heat sink, and the rotor shaft is biased in the axis of rotation direction by a biasing force from the disc spring.