Battery module, battery system, electric vehicle, mobile unit, electric power storage device, power supply device, and electric device

Patent metadata

Field	Value
Publication number	US-9705161-B2
Application number	US-201114008213-A
Country	US
Kind code	B2
Filing date	Sep 15, 2011
Priority date	Mar 29, 2011
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A battery module includes a battery block, a cover member, a circuit board, a wiring member, and a first connection member. The battery block includes a plurality of battery cells, and has a terminal surface. Terminals of the plurality of battery cells are arranged on the terminal surface. The cover member is arranged on or above the terminal surface of the battery block. The circuit board overlaps the cover member, and includes a voltage detection circuit for detecting terminal voltages of the plurality of battery cells. The wiring member overlaps the cover member, and is electrically connected to the terminals of the plurality of battery cells. The first connection member electrically connects the circuit board to the wiring member.

First claim

The invention claimed is:

1. A battery module comprising:
a battery block that includes a plurality of battery cells, and has a terminal surface on which terminals of said plurality of battery cells are arranged;
a cover member that is arranged on or above said terminal surface of said battery block;
a wiring member that overlaps said cover member, and is electrically connected to the terminals of said plurality of battery cells;
a circuit board that overlaps said wiring member, said circuit board including a voltage detection circuit for detecting terminal voltages of said plurality of battery cells; and
a first connection member that electrically connects said circuit board to said wiring member;
wherein said circuit board, said wiring member and said cover member are arranged on or above said terminal surface of said battery block in this order, and
wherein said circuit board and said wiring member are provided separately from each other.

2. The battery module according to claim 1 , wherein said cover member has a first surface that faces said terminal surface of said battery block, and a second surface that is located a side opposite to the first surface,
wherein said circuit board overlaps said first surface of said cover member, and
wherein said wiring member is arranged between said cover member and said circuit board, and overlaps said first surface of said cover member.

3. The battery module according to claim 1 , wherein said cover member, said circuit board, said wiring member, and said first connection member are integrally formed with each other by resin.

4. The battery module according to claim 1 further comprising second connection members for electrical connection of the terminals of said plurality of battery cells,
wherein said wiring member is connected to said second connection members.

5. The battery module according to claim 4 , wherein said second connection members are fastened to said cover member.

6. A battery system comprising:
one or a plurality of battery modules; and
said one or at least one of said plurality of battery modules is the battery module according to claim 1 .

7. The battery module according to claim 1 ,
wherein said cover member has a first surface that faces said terminal surface of said battery block, and a second surface that is located on a side opposite to the first surface,
wherein said circuit board is positioned between said battery block and said cover member to overlap said first surface of said cover member.

8. The battery module according to claim 7 , wherein said first connection member overlaps said second surface of said cover member.

9. A battery module comprising:
a battery block that includes a plurality of battery cells, and has a terminal surface on which terminals of said plurality of battery cells are arranged;
a circuit board that overlaps said terminal surface of said battery block, and includes a voltage detection circuit for detecting terminal voltages of said plurality of battery cells;
a cover member that is arranged on or above said terminal surface of said battery block and overlaps said circuit board;
a wiring member that overlaps said cover member, and is electrically connected to the terminals of said plurality of battery cells; and
a first connection member that electrically connects said circuit board to said wiring member,
wherein said wiring member, said cover member and said circuit board are arranged on or above said terminal surface of said battery block in this order.

Assignees

• Nishihara Yoshitomo
• Asai Yasuhiro
• Watanabe Tsuyoshi
• Sanyo Electric Co

Inventors

• Nishihara Yoshitomo
• Asai Yasuhiro
• Watanabe Tsuyoshi

Classifications

• H01M10/425

  Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title

• B60L50/60

  using power supplied by batteries (in combination with fuel cells B60L50/75) · CPC title

• H01M10/482 Primary

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M50/519

  comprising printed circuit boards [PCB] · CPC title

• H01M50/569

  Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals (battery terminal connectors with integrated measuring arrangements G01R31/364) · CPC title