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Connection components especially for traction batteries of electric vehicles

A technology for connecting components and traction batteries, which is applied to battery pack components, conductive connections, electric vehicles, etc., and can solve problems such as loss of electrical contact

Active Publication Date: 2022-08-09
TE CONNECTIVITY GERMANY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A disadvantage associated with current solutions is that relative movement between the cells may result, for example, due to mechanical forces acting during operation or due to thermal expansion, resulting in a loss of electrical contact.

Method used

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  • Connection components especially for traction batteries of electric vehicles
  • Connection components especially for traction batteries of electric vehicles
  • Connection components especially for traction batteries of electric vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] figure 1 Connection assembly 1 is shown. The connection assembly 1 comprises several bus bars 5 and flexible electrical connection elements 6 .

[0033] The bus bars 5 may be used to connect the electrodes of the cells 4 of the traction battery 2, which may for example be part of an electric vehicle. The bus bars 5 can connect the electrodes in parallel or in series to achieve an increase in voltage or current.

[0034] A cover 45 is arranged below the bus bar 5 .

[0035] The bus bars 5 , the flexible electrical connection elements 6 and the cover 45 extend in a general or general direction of extension 7 parallel to the surface of the traction battery 2 .

[0036] During operation of the vehicle, the cells 4 are subjected to relative movement, eg due to mechanical stress or movement. Furthermore, when the current flowing through the bus bar 5 increases the temperature of the bus bar 5, the bus bar 5 expands.

[0037] In order to avoid such relative movement from ...

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PUM

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Abstract

The application shows a connection assembly ( 1 ) for traction batteries ( 2 ), in particular for electric vehicles, comprising at least one bus bar ( 5 ) and at least one flexible electrical connection element ( 6 ), wherein , the bus bar (5) and the flexible electrical connection element (6) extend along each other in the general extension direction (7), wherein the bus bar (5) comprises at least one compensation section (10, 15) , the bus bar (5) extends laterally away from the extension direction (7) in the at least one compensation section.

Description

technical field [0001] The present invention relates to a connection assembly for traction batteries, in particular for electric vehicles. Background technique [0002] Such a connection assembly may include at least one bus bar and at least one flexible electrical connection element, wherein the bus bar and the flexible electrical connection element extend along each other in a general direction of extension. [0003] Bus bars can be used to connect some cells of the traction battery to increase current and / or voltage. The flexible electrical connection elements can be used to monitor voltage at certain locations of the connection assembly, for example to monitor the voltage at a particular cell to check the integrity of the cell. [0004] A disadvantage associated with current solutions is that electrical contact may be lost, for example, due to mechanical forces acting during operation or relative movement between the cells due to thermal expansion. [0005] It is there...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/505H01M50/503H01M50/209H01M50/50
CPCH01M2220/20H01M50/50H01M50/503H01M10/48H01M50/209H01M2010/4271Y02E60/10B60L58/10B60L3/0023B60Y2200/91H01R4/28H01R12/59
Inventor K.基奥希斯G.托特
Owner TE CONNECTIVITY GERMANY GMBH