battery module

A technology of battery modules and battery cells, which is applied in the direction of batteries, secondary batteries, battery pack components, etc., and can solve problems such as connector plugging and unplugging obstacles, height and dimension increase, etc.

Active Publication Date: 2022-07-19
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, as shown in Patent Document 1, in the battery module in which the sensor device is arranged on the upper surface of the battery cell stack, the height dimension may be greatly increased.
In particular, in a battery module using a bus bar having an upwardly protruding bent portion in the middle of the stacking direction of the battery cells in order to relieve the stress acting on the battery cells due to expansion, the height dimension may be greatly increased, and with The insertion and removal of the connector connected to the sensor device may also be hindered by the bent part of the bus bar

Method used

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Embodiment Construction

[0037] Hereinafter, an embodiment of the battery module of the present invention will be described with reference to the drawings. It should be noted that the drawings are viewed along the direction of the reference numerals.

[0038] [Battery Module]

[0039] like Figure 1 to Figure 3 As shown, the battery module 1 according to the present embodiment includes a battery cell stack body 2 composed of a plurality of battery cells 21 stacked in the front-rear direction, and the battery cell stack body 2 has a front surface, a rear surface, a left surface, and a right surface. , upper surface, and lower surface; a pair of end plates 3, which are arranged on the front and rear surfaces of the battery cell stack 2; a pair of side frames 4, which are arranged on the left and right surfaces of the battery cell stack 2, A pair of end plates 3 are connected; the lower plate 5 is arranged on the lower surface of the battery cell stack body 2; the sensor device 7 is arranged on the upp...

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Abstract

The present invention provides a battery module capable of securing a connector insertion / removal space and suppressing a height dimension. The battery module includes a battery cell stack formed by stacking a plurality of battery cells, a plurality of bus bars connecting terminals of adjacent battery cells to each other, and a sensor device that detects the voltage of each battery cell. The sensor device is disposed above the plurality of bus bars disposed on the upper surface of the battery cell stack when viewed in the width direction, and includes a voltage detection connector having a connection portion in the width direction. Each bus bar has a bent portion that protrudes upward between the connected battery cells. The connector for voltage detection is disposed between the bent portions of the bus bars adjacent in the stacking direction, and the lower surface of the connector for voltage detection is provided at a position lower than the upper portion of the bent portion in the vertical direction.

Description

technical field [0001] The present invention relates to a battery module mounted in an electric vehicle or the like. Background technique [0002] Conventionally, battery modules have been mounted on electric vehicles and the like. For example, Patent Document 1 discloses a battery module including a battery cell stack formed by stacking a plurality of battery cells, and a sensor device that detects the voltage of each battery cell. [0003] prior art literature [0004] Patent Document 1: Japanese Patent Laid-Open No. 2016-072181 [0005] However, as shown in Patent Document 1, in the battery module in which the sensor device is arranged on the upper surface of the battery cell stack, the height dimension may be greatly increased. In particular, in a battery module to which a bus bar having a bent portion protruding upward in the middle portion in the stacking direction of the battery cells is applied in order to alleviate the stress that acts due to the expansion of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H01M10/48H01M50/209H01M50/271H01M50/503H01M50/507H01M50/51
CPCH01M10/425H01M10/482H01M2220/20H01M50/503H01M50/271H01M50/507H01M50/51H01M50/209
Inventor 因和久板谷弘毅中野笃
Owner HONDA MOTOR CO LTD
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