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.

Date of Patent:
Oct. 03, 2006

Filed:

Mar. 17, 2005
Applicants:

Masatoshi Koumura, Okazaki, JP;

Kouichi Ihata, Okazaki, JP;

Akihito Koike, Kariya, JP;

Inventors:

Masatoshi Koumura, Okazaki, JP;

Kouichi Ihata, Okazaki, JP;

Akihito Koike, Kariya, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An AC generator has negative pole-side rectifier devices press-fitted to a holder fin so as to dispose a bottom face of the rectifier device on a surface of the holder fin. The holder fin is disposed in such a manner that the bottom face of the rectifier device faces a rear frame of the AC generator. A clearance is formed between the rear frame and the bottom face through which the cooling wind for the rectifier device flows. The rear frame is provided with a slant face on its outer wall face for inducing the cooling wind introduced through an opening of the protection cover of the AC generator to the rectifier devices. Thus, the cooling wind induced by the slant face can hit on the bottom face of the rectifier devices directly, so as to cool the rectifier device well.


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