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Plastic bracket and battery pack

A technology for plastic brackets and battery packs, applied to secondary batteries, battery pack components, circuits, etc., can solve the problems of fast heat dissipation of metal shells, which is not conducive to charging and discharging of battery cells, and is not conducive to heat dissipation of battery packs, etc.

Pending Publication Date: 2021-10-15
ZHEJIANG NARADA POWER SOURCE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the battery pack is used at high temperature, the plastic case is not conducive to the heat dissipation of the battery pack; when the battery pack is used at low temperature, the metal case dissipates heat quickly, which is not conducive to the charging and discharging of the battery cell

Method used

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  • Plastic bracket and battery pack
  • Plastic bracket and battery pack
  • Plastic bracket and battery pack

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Embodiment Construction

[0028] The implementation of the present application will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects.

[0029] Figure 1-4 A plastic bracket provided by the present invention, the plastic bracket is made of foaming material, the plastic bracket is composed of left and right half shells 1, and through the splicing of the two half shells 1, the two half shells 1 An accommodating cavity 6 for accommodating the electric core is formed inside, and as figure 1 As shown, only the top of the entire plastic bracket is provided with a harness hole penetrating through the accommodating cavity 6, and the harness of the battery passes through the harness hole.

[0030] Specifically, the two half-shells 1 have longitudinal closed-loop joining surfaces 7; a raised fitting s...

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Abstract

The invention belongs to the technical field of lithium ion batteries, and comprises a plastic bracket, the plastic bracket is made of a foaming material and is formed by splicing a left half shell and a right half shell, an accommodating cavity for accommodating a battery cell is formed in the two half shells, and a wiring harness hole penetrating through the accommodating cavity is formed in the top of the plastic bracket. The invention further comprises a battery pack, the battery pack comprises a shell and a top cover covering the shell, and a plurality of battery cells are fixed through the plastic bracket. The foamed plastic bracket can effectively reduce the weight proportion of the bracket, so that the weight proportion of the battery cell can be increased for the battery pack with the same weight standard, the capacity of the battery pack is improved, in addition, the plastic bracket is located between the battery cell and the shell, the battery cell can be fixed, the damping effect can be achieved, and therefore, friction and collision between the battery cell and the inner side of the shell in the use process of the battery pack are avoided, and finally the bad phenomena of short circuit, fire and the like of the battery cell are avoided.

Description

technical field [0001] The invention belongs to the technical field of lithium ion batteries, and specifically includes a plastic bracket and a battery pack. Background technique [0002] The battery pack is fixed with a plastic bracket, and there is a gap between the battery pack and the shell. During use, the battery pack will rub and collide with the inside of the shell, resulting in short circuit of the battery cells, fire and other defects. Generally, potting glue is used to fill the gap, but the use of existing plastic brackets, potting glue and other materials leads to a significant drop in battery energy density. For batteries of the same weight specification, the larger the weight of the bracket, the smaller the specific gravity of the battery cell, that is The smaller the battery capacity. [0003] In addition, the lithium-ion battery pack is fixed in the form of a plastic bracket or potting sealant, and then packed into a plastic or metal casing. When the batter...

Claims

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Application Information

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IPC IPC(8): H01M50/244H01M50/242H01M50/227H01M10/6551H01M10/615H01M50/258H01M50/264
CPCH01M50/244H01M50/227H01M50/242H01M50/264H01M50/258H01M10/615H01M10/6551Y02E60/10
Inventor 刘桃松刘卫朋张育红胡雨萌党志敏张焱于文志严玲玲葛忠陈建陈冬
Owner ZHEJIANG NARADA POWER SOURCE CO LTD
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