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:
Aug. 19, 2008
Filed:
Mar. 03, 2005
Yutaka Kitamura, Tokyo, JP;
Yoshihito Asao, Tokyo, JP;
Yutaka Kitamura, Tokyo, JP;
Yoshihito Asao, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
[Problem] In a vehicular rotating electrical machine apparatus mounted in an electric vehicle or a hybrid electric vehicle, a rotating electrical machine apparatus in which a rotating electrical machine and an inverter unit to control the rotating electrical machine are integrated is miniaturized, and its torque characteristic and efficiency are improved. [Means for Resolution] Since an inverter unitis cooled by cooling air forcibly formed by a cooling fan, the inverter unitis efficiently cooled. Then, heat radiating finsandof heat sinksandcan be miniaturized, and consequently, the inverter unitis miniaturized, and mountability of the inverter unitto a rear bracketis improved. Further, since the inverter unitand a rotating electrical machineare cooled by the cooling air formed by the cooling fan, the cooling medium of the inverter unitis used also as the cooling medium (cooling air) of the rotating electrical machine, and a cooling structure is simplified.