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.:

US 9277681 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 01, 2016

Filed:

Mar. 04, 2013
Applicant:

Hitachi Automotive Systems, Ltd., Ibaraki, JP;

Inventors:

Yoshio Kawai, Ota, JP;

Takayuki Fukuzawa, Isesaki, JP;

Assignee:

HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); H05K 5/00 (2006.01);
U.S. Cl.
CPC ...
H05K 7/20854 (2013.01); H05K 5/0082 (2013.01); H01L 2924/0002 (2013.01);
Abstract

An electronic control apparatus includes housing members, and a circuit board. At least one of the housing members is opposed to a heat-generating region which is heated by the heat-generating electronic component. A heat radiating portion of the housing member includes a convex portion protruding from an inner wall surface at a location opposed to the heat-generating region, and a concave portion opened to an outer wall surface at a location shifted from the convex portion in a thickness direction. The convex portion is close to the heat-generating region through a clearance. The concave portion has a lateral wall formed in a tapered shape such that an opening area of the concave portion is larger than a bottom area of the concave portion. A thickness of the heat radiating portion is smaller than a thickness of a region peripheral to the heat radiating portion in the housing member.


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Kawai, Yoshio. (2016). Electronic control apparatus (U.S. Patent No. 9277681). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9277681

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