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:
May. 17, 2016
Filed:
Nov. 25, 2011
Keisuke Fukumasu, Hitachinaka, JP;
Makoto Torigoe, Ayase, JP;
Kenichiro Nakajima, Hitachinaka, JP;
Masayoshi Takahashi, Yokohama, JP;
Hiroki Funato, Fujisawa, JP;
Keisuke Fukumasu, Hitachinaka, JP;
Makoto Torigoe, Ayase, JP;
Kenichiro Nakajima, Hitachinaka, JP;
Masayoshi Takahashi, Yokohama, JP;
Hiroki Funato, Fujisawa, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
Radiated noise caused by switching noise of power semiconductor elements in an electrical converter is reduced. The electrical converter is characterized in comprising: a case; a power module mounted on the case and comprising a plurality of power semiconductor elements; a metal plate mounted to the power module and fixed to the case; a control circuit board arranged on the metal plate, for controlling the power semiconductor elements; and a direct-current input terminal electrically connected to a battery. The electrical converter is also characterized in being provided at the bottom with a transmission or motor, and at the top with a connector for connecting the battery and the direct-current input terminal. The electrical converter is further characterized in that the metal plate is curved, and a portion of the curved metal plate is arranged in the space between the control circuit board and the direct-current input terminal.