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:
Jun. 02, 2020
Filed:
Feb. 16, 2017
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Masao Fujimoto, Isesaki, JP;
Keiji Hamada, Isesaki, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
An electric drive device has a motor housing accommodating an electric motor, a heat radiation base body fixed to an end surface, which is opposite side to an output shaft portion of a motor rotation shaft, of the motor housing and extending in a rotation shaft direction that is opposite side to output shaft portion, one electronic control unit of redundant system, arranged along direction in which heat radiation base body extends and having board, fixed to the heat radiation base body with thermal conduction to heat the radiation base body allowed, and the other electronic control unit of redundant system, arranged along direction in which the heat radiation base body extends and having a board, fixed to the heat radiation base body with thermal conduction to heat radiation base body allowed. Boards of both electronic control units are fixed to the heat radiation base body with boards slanting with respect to an extension direction of the heat radiation base body.