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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 9627896 B1

PDFFull Text
Date of Patent:
Apr. 18, 2017

Filed:

Aug. 02, 2013

Battery system including a voltage detecting circuit for detecting voltages of plural battery cells through voltage detecting lines having different lengths

Applicant:

Sanyo Electric Co., Ltd., Osaka, JP;

Inventor:

Yoshitomo Nishihara, Hyogo, JP;

Assignee:

SANYO ELECTRIC CO., LTD., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Richard Isla Rodas

Assistant Examiner:

Manuel Hernandez

Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01M 10/48 (2006.01); B60L 11/18 (2006.01); G01R 31/36 (2006.01); B60L 3/12 (2006.01); B60L 7/14 (2006.01); B60L 11/12 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0021 (2013.01); B60L 3/12 (2013.01); B60L 7/14 (2013.01); B60L 11/123 (2013.01); B60L 11/1859 (2013.01); B60L 11/1861 (2013.01); B60L 11/1866 (2013.01); B60L 11/1877 (2013.01); B60L 11/1879 (2013.01); G01R 31/3624 (2013.01); G01R 31/3658 (2013.01); H01M 10/482 (2013.01); H02J 7/007 (2013.01); H02J 7/0016 (2013.01); H02J 7/0052 (2013.01); B60L 2210/40 (2013.01); B60L 2240/12 (2013.01); B60L 2240/545 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); G01R 31/3637 (2013.01); Y02T 10/6217 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/7055 (2013.01); Y02T 10/7061 (2013.01); Y02T 10/7077 (2013.01); Y02T 10/7241 (2013.01);
Abstract

A battery system comprises plural battery cells, a voltage detecting circuit detecting voltage of each of the battery cells, and plural voltage detecting lines connecting an electrode terminal of each of the battery cells to input side of the voltage detecting circuit, and the voltage detecting circuit detects the voltage of each of the battery cells through the voltage detecting lines. The voltage detecting lines have different lengths, and at least one of the voltage detecting lines has a resistance adjusting portion which equalizes electrical resistances of the long voltage detecting line and the short voltage detecting line, and through the plural voltage detecting lines of which electrical resistances are equalized by the resistance adjusting portion, the voltage detecting circuit detects the voltage of each of the battery cells.

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