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New-energy automobile power battery pack

A technology for power battery packs and new energy vehicles, applied to battery pack components, secondary batteries, circuits, etc., can solve problems such as inability to reach the deep part of the battery pack, battery pack failure, poor heat dissipation, etc., and achieve pollution prevention and high efficiency Effect of heat dissipation and strengthening of impact strength

Inactive Publication Date: 2019-05-14
NANJING VOCATIONAL UNIV OF IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing air-cooled heat dissipation of the battery pack mainly focuses on the heat dissipation on the periphery of the battery pack. The heat dissipation is concentrated on the surface of the battery pack, and cannot reach the deep part of the battery pack. Impurities and water, causing battery pack failure

Method used

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  • New-energy automobile power battery pack
  • New-energy automobile power battery pack
  • New-energy automobile power battery pack

Examples

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Embodiment Construction

[0021] combine Figure 1-4 A new energy vehicle power battery pack shown is installed on an electric vehicle to provide driving power for the electric vehicle. The present invention includes a casing and a battery unit 2 installed in the casing. The casing is made of sheet metal or directly made of high-strength plastic, and the latter has good strength and light weight. A battery unit 2 can be a single battery, and a battery unit 2 can also be a small whole composed of a plurality of batteries connected in series. The inner walls of the front side and the rear side of the housing are respectively provided with a confluence positioning plate 1 made of conductive material, such as: copper plate, copper alloy plate, aluminum alloy plate, etc., between the confluence positioning plates 1. Several battery cells 2 are arranged in a matrix, and the positive poles and negative poles of the battery cells 2 are respectively in contact with the bus positioning plate 1 . The battery ce...

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Abstract

The invention relates to the technical field of automobile batteries and aims to provide a new-energy automobile power battery pack with a good heat dissipation effect. According to the adopted technical scheme, the new-energy automobile power battery pack comprises a shell and a plurality of battery units, wherein two converging locating plates made of a conductive material are arranged on the inner wall of a front side face and the inner wall of a rear side face of the shell respectively, the plurality of battery units are distributed in a matrix between the converging locating plates, and the anode and cathode of each battery unit make contact with the converging locating plates respectively; poles are arranged on the surface of the shell, and the converging locating plates are communicated with the poles through outgoing lines; and airflow heat exchange pipes are arranged between the four adjacent battery units and extend along the front-back direction of the shell. According to the new-energy automobile power battery pack, heat dissipation can be efficiently performed inside the battery pack, and it is ensured that the battery units always work under stable working conditions.

Description

technical field [0001] The invention relates to the technical field of automobile batteries, in particular to a new energy automobile power battery pack. Background technique [0002] With the continuous development and progress of science and technology, the number of electric vehicles is showing a trend of rapid growth. At present, the energy storage devices used in electric vehicles mainly use lithium-ion batteries, but when the internal reaction rate of lithium-ion batteries reaches a certain critical point, the heat generated by the internal reaction of the battery exceeds the heat that can be dissipated, which leads to a decrease in the internal reaction rate of the battery. The acceleration and heat generation increase, and the battery thermal runaway occurs. In thermal runaway, a large amount of heat is released rapidly, raising the temperature of the entire battery cell to 900°C or even higher. If the electric vehicle battery pack cannot be ventilated and dissipat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/20H01M2/10H01M10/613H01M10/625H01M10/6562H01M50/242H01M50/244H01M50/249H01M50/502
CPCY02E60/10
Inventor 满毅
Owner NANJING VOCATIONAL UNIV OF IND TECH
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