Bus bar module and battery pack

Patent metadata

Field	Value
Publication number	US-2018358601-A1
Application number	US-201816001815-A
Country	US
Kind code	A1
Filing date	Jun 6, 2018
Priority date	Jun 7, 2017
Publication date	Dec 13, 2018
Grant date	—

Abstract

A bus bar module includes an insulating resin case mounted to an assembled battery and including a bus bar accommodating chamber, a conductive metal bus bar, and a voltage detection terminal. The assembled battery includes a plurality of cells in which a positive terminal and a negative terminal are alternately arranged. The positive terminal and the negative terminal are collectively disposed in the bus bar accommodating chamber. The conductive metal bus bar includes a plurality of terminal through holes corresponding to a number of the positive terminal and the negative terminal. The conductive metal bus bar is accommodated in the bus bar accommodating chamber.

First claim

What is claimed is:

1 . A bus bar module comprising:
an insulating resin case mounted to an assembled battery and including a bus bar accommodating chamber; a conductive metal bus bar; and a voltage detection terminal, wherein the assembled battery includes a plurality of cells, wherein the positive terminal and the negative terminal are collectively disposed in the bus bar accommodating chamber, wherein the conductive metal bus bar includes a plurality of terminal through holes corresponding to a number of the positive terminal and the negative terminal, wherein the conductive metal bus bar is accommodated in the bus bar accommodating chamber, wherein the positive terminal and the negative terminal are collectively conducted in the conductive metal bus bar, wherein the voltage detection terminal includes a wire connecting portion and a plurality of terminal insertion holes, wherein adjacent terminals of the positive terminal and the negative terminal are inserted into the plurality of terminal insertion holes, and wherein the voltage detection terminal is stacked and fixed to the conductive metal bus bar and is shorter than the conductive metal bus bar.

2 . The bus bar module according to claim 1 :
wherein the voltage detection terminal is overlapped with a heating portion of the conductive metal bus bar to prevent a temperature rise on the heating portion during current flowing.

3 . The bus bar module according to claim 1 :
wherein the assembled battery includes a first cell group in which the plurality of cells are connected in parallel, and a second cell group in which the plurality of cells are connected in parallel, wherein the first cell group and the second cell group are connected in series.

4 . A battery pack comprising:
the bus bar module according to claim 1 ; and the assembled battery.

Assignees

• Yazaki Corp

Inventors

• Yanagihara Shinichi
• Okazaki Yutaro
• Nojima Motoo

Classifications

• H01M10/482 Primary

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M10/4285

  Testing apparatus · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M6/5083 Primary

  Testing apparatus · CPC title

• H01M6/5011

  for several cells simultaneously or successively · CPC title