Battery module

Patent metadata

Field	Value
Publication number	US-11050123-B2
Application number	US-201916431983-A
Country	US
Kind code	B2
Filing date	Jun 5, 2019
Priority date	Jun 22, 2018
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

A battery module includes: a cell-stacked body constituted by stacking a plurality of cells; a plurality of bus bars, each of which connects terminals of adjacent cells; and a sensor device configured to detect a voltage of each cell. The sensor device is disposed above the plurality of bus bars disposed on an upper surface of the cell-stacked body as viewed from a width direction perpendicular to a stacking direction and an up-down direction, and includes a connector having a connection portion in the width direction. Each of the bus bars has a bent portion protruding upward between the cells to be connected. The connector is disposed between the bent portions of adjacent bus bars in the stacking direction, and a lower surface of the connector is provided at a position lower than an upper portion of the bent portion in the up-down direction.

First claim

The invention claimed is:

1. A battery module, comprising:
a cell-stacked body constituted by stacking a plurality of cells;
a plurality of bus bars, each of which connects terminals of adjacent cells; and
a sensor device configured to detect a voltage of each cell, wherein
the sensor device is disposed above the plurality of bus bars disposed on an upper surface of the cell-stacked body as viewed from a width direction perpendicular to a stacking direction and an up-down direction, and includes a connector having a connection portion in the width direction,
each of the bus bars has a bent portion protruding upward between the cells to be connected, and
the connector is disposed between the bent portions of adjacent bus bars in the stacking direction, and a lower surface of the connector is provided at a position lower than an upper portion of the bent portion in the up-down direction.

2. The battery module according to claim 1 , wherein
the sensor device includes:
a substrate;
an electronic component mounted on the substrate; and
a case accommodating the substrate and the electronic component, and
the connector is provided on a side surface of the case.

3. The battery module according to claim 1 , wherein
voltage detection lines connected to each of the bus bars are connected to the connector.

4. The battery module according to claim 1 , wherein
the sensor device further includes another connector for connecting voltage detection lines connected to each of bus bars of another battery module disposed adjacent to one side in the width direction, and a connection portion of the another connector is provided on the one side in the width direction.

Assignees

• Honda Motor Co Ltd

Inventors

• In Kazuhisa
• Itaya Hiroki
• Nakano Atsushi

Classifications

• H01M10/482 Primary

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M50/51

  Connection only in series · CPC title

• H01M50/271

  Lids or covers for the racks or secondary casings · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title

• H01M50/507

  comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules · CPC title