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:
Oct. 06, 2020
Filed:
Jul. 31, 2017
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Abstract
Provided is an electric drive device in which heat-dissipating sections (A) (B) that transfer at least heat generated by a power supply circuit unit () and power conversion circuit units () to a motor housing () are formed on an end surface section () of the motor housing () on the opposite side from an output section of a rotating shaft () of an electric motor. In addition, a watertight lid member () that covers a through hole () through which the rotating shaft passes and the end of the rotating shaft () from the exterior is attached to the end surface section () around the through hole (), and a waterproof breathable membrane () that prevents the passage of moisture while allowing the passage of air and water vapor is provided to part of the watertight lid member.