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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 10249913 B1

PDFFull Text
Date of Patent:
Apr. 02, 2019

Filed:

Jul. 24, 2014

Battery pack cooling system

Applicants:

Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;

Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;

Inventors:

Toyoki Iguchi, Kanagawa, JP;

Hiroaki Hashimoto, Kanagawa, JP;

Masayoshi Saeki, Kanagawa, JP;

Hiroaki Saitou, Kanagawa, JP;

Shigeyuki Kiyota, Kanagawa, JP;

Yoshiyuki Tanaka, Kanagawa, JP;

Hiroshi Iwata, Hitachinaka, JP;

Hiroshi Hoshi, Hitachinaka, JP;

Akira Kotaki, Hitachinaka, JP;

Nayuta Yamachi, Hitachinaka, JP;

Toshiyuki Yoshida, Hitachinaka, JP;

Chikara Kikkawa, Hitachinaka, JP;

Takeshi Haga, Hitachinaka, JP;

Assignee:

Nissan Motor Co., Ltd., Yokohama, JP;

Attorney:

Global IP Counselors, LLP

Primary Examiner:

Stephan J Essex

Int. Cl.
CPC ...
H01M 10/42 (2006.01); H01M 10/48 (2006.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/643 (2014.01); H01M 10/6556 (2014.01); H01M 10/6563 (2014.01); H01M 10/6566 (2014.01); H01M 10/63 (2014.01); B60L 11/18 (2006.01); H01M 2/10 (2006.01); H01M 10/637 (2014.01); H01M 10/633 (2014.01);
U.S. Cl.
CPC ...
H01M 10/4257 (2013.01); B60L 11/1853 (2013.01); B60L 11/1874 (2013.01); B60L 11/1879 (2013.01); H01M 2/1077 (2013.01); H01M 10/482 (2013.01); H01M 10/486 (2013.01); H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/63 (2015.04); H01M 10/637 (2015.04); H01M 10/6556 (2015.04); H01M 10/6563 (2015.04); H01M 10/6566 (2015.04); B60L 2240/545 (2013.01); H01M 10/425 (2013.01); H01M 10/633 (2015.04); H01M 10/643 (2015.04); H01M 2010/4271 (2013.01); H01M 2010/4278 (2013.01); H01M 2220/20 (2013.01); Y02T 10/705 (2013.01); Y02T 10/7005 (2013.01);
Abstract

A battery pack cooling system includes a plurality of cells disposed in an internal space of a battery pack case so as to form a cooling passage configured to cool the cell modules by cooling air flowing in the cooling passage. A first temperature sensor is a minimum temperature sensor disposed in the upstream position which becomes a lowest temperature. A second temperature sensor is a maximum temperature sensor disposed in the downstream position which becomes a highest temperature. A third temperature sensor is configured to measure the temperature of either the highest temperature or the lowest temperature disposed in a second cell module. A cooling passage includes a cooling air inlet passage, a cooling air exhaust passage, and a plurality of cooling branch passages disposed to connect the cooling air inlet passage and the cooling air exhaust passage in parallel.

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