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. 14, 2005
Filed:
Aug. 26, 2002
Tsutomu Tominaga, Tokyo, JP;
Tadayuki Fujimoto, Tokyo, JP;
Tsutomu Tominaga, Tokyo, JP;
Tadayuki Fujimoto, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An electric power steering removes external wiring connecting between an electric motor and a control unit, whereby the influence of radiation noise caused by a PWM operation can be reduced. In addition, the heat radiation and assemblability of the electric motor and the control unit can be improved, while achieving high power output. A housingwith a metal substratefixedly secured thereto is arranged at a side opposite to an electric motor. The cooling fins are formed on an outer side of a housingand on an outer side and an inner side of a cover. A metal substrate, a large current substrateand a control substrateare arranged inside of the housingand the coverin a laminated structure.