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:
Aug. 08, 2017

Filed:

Oct. 20, 2014
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventor:

Hiroto Kusaka, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); H01L 23/473 (2006.01); H01L 23/34 (2006.01); H01L 23/373 (2006.01); F28D 15/00 (2006.01); F28F 21/08 (2006.01); F28D 21/00 (2006.01);
U.S. Cl.
CPC ...
H01L 23/473 (2013.01); F28D 15/00 (2013.01); F28F 21/084 (2013.01); H01L 23/34 (2013.01); H01L 23/3735 (2013.01); H01L 23/3736 (2013.01); F28D 2021/0028 (2013.01); H01L 2224/32225 (2013.01); H01L 2924/0002 (2013.01); H01L 2924/13055 (2013.01);
Abstract

An onboard electronic device includes: an element that generates heat; a member that is provided between the element and a coolant cooling the element, and differs in thermal expansion coefficient from the element; an element temperature sensor that detects the temperature of the element; a coolant temperature sensor that detects the temperature of the coolant; and a controller that controls operation of the element such that the temperature of the element allowed when the temperature of the coolant is a first temperature is lower than the temperature of the element allowed when the temperature of the coolant is a second temperature that is higher than the first temperature.


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