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Copper bar protection structure, battery pack and electric vehicle

A technology for protecting structures and copper bars, applied in the automotive field, can solve the problems of PI film wear and tear on the outer surface of copper bars, leakage and other problems, and achieve the effects of avoiding the risk of copper bar leakage, enhancing safety performance, and improving installation stability

Pending Publication Date: 2021-11-12
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the long-term use of the battery pack, considering that under various working conditions, the vibration of the electric vehicle will cause the wear and damage of the PI film on the outer surface of the copper row, and then there will be a risk of leakage

Method used

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  • Copper bar protection structure, battery pack and electric vehicle
  • Copper bar protection structure, battery pack and electric vehicle
  • Copper bar protection structure, battery pack and electric vehicle

Examples

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Embodiment Construction

[0021] The specific implementation manners of the present application will be clearly described below in conjunction with the accompanying drawings.

[0022] The copper bar protection structure in the embodiment of the present application can be used in a battery pack of an electric vehicle, and its function is to connect different battery cell modules in the battery pack to realize the electrical connection between the battery modules.

[0023] Please also refer to Figure 1 to Figure 4 , figure 1 It is a structural schematic diagram of the copper bar protection structure of the embodiment of the present application, figure 2 is a cross-sectional view of the copper row protection structure along the A-A cutting line, image 3 is in figure 2 An exploded view in the case of a cutaway view, Figure 4 It is an exploded view of the protective structure of copper bars.

[0024] The copper bar protection structure 10 in the embodiment includes an upper shell 11 and a lower sh...

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Abstract

The invention discloses a copper bar protection structure which comprises an upper shell and a lower shell which are in butt joint with each other, the butt joint faces of the upper shell and the lower shell are each provided with a containing groove, the two containing grooves form a copper bar containing space, phase-change material layers are laid on the inner walls of the containing grooves, and when the copper bar accommodating space accommodates a copper bar, the copper bar is wrapped by the phase-change material layers. According to the copper bar protection structure, the copper bar containing space is designed between the upper shell and the lower shell which are in butt joint, the phase-change material layers are laid on the inner walls, then the copper bar is wrapped, and the copper bar protection structure achieves the effect of cooling the copper bar while achieving installation protection of the copper bar. The invention further provides a battery pack and an electric vehicle.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a copper bar protection structure, a battery pack and an electric vehicle. Background technique [0002] As the power component of electric vehicles, the battery pack mainly works by charging and discharging multiple battery packs connected internally, and different battery packs are electrically connected through copper bars. In order to protect the copper bars, the traditional process is to add a layer of PI (polyimide) film on the outer surface of the copper bars, so as to play the role of insulation protection. However, during the long-term use of the battery pack, it is considered that under various working conditions, the vibration of the electric vehicle will cause wear and damage to the PI film on the outer surface of the copper row, and then there is a risk of leakage. Contents of the invention [0003] The purpose of this application is to provide a protective structure fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/503H01M50/588H01M10/613H01M10/625H01M10/659
CPCH01M10/613H01M10/625H01M10/659H01M2220/20H01M50/588Y02E60/10H02G5/10H01M50/591H01M10/6554H01M10/6567H01M50/581H01M50/503H01M50/522H01M10/6569H01M50/204H01M50/249B60L58/18B60L50/64B60L58/26H01M50/517H01M50/505H01M50/526
Inventor 赵向峰郭坤陶乃束
Owner BYD CO LTD
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