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Electric vehicle power battery box

A technology for power batteries and electric vehicles, applied to secondary batteries, battery pack components, circuits, etc., can solve problems such as insufficient cooling capacity, heavy weight, and complex structure, and achieve high energy utilization, high safety, and temperature good control effect

Pending Publication Date: 2019-12-27
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the liquid pipeline is arranged in the box wall, and the energy is transmitted to the cells, which has the defects of complex structure and heavy weight; on the other hand, it only adopts the form of liquid cooling of the box shell, and the cooling capacity is insufficient

Method used

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  • Electric vehicle power battery box
  • Electric vehicle power battery box
  • Electric vehicle power battery box

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0024] Such as Figure 1 to Figure 3 As shown, an electric vehicle power battery box includes a rectangular block battery box body 100 and a temperature control device for the battery box body 100 , and an upper cover 300 is provided on the top opening of the battery box body 100 . The outer sides of the left and right side walls of the battery box body 100 are respectively provided with a temperature control chamber B, and the two temperature control chambers B are symmetrically arranged left and right. form. The two temperature control chambers B and the battery chamber A of the battery box body 100 are respectively connected through a number of ventilation holes 101 on the left and right side walls of the battery box body 100, and the two temperature control chambers B are connected through the front and rear side walls of the battery box body 100. The horizontal air duct 102 inside is connected, and a cold / hot liquid pipeline 401 is laid on the side wall close to the batt...

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PUM

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Abstract

The invention discloses an electric vehicle power battery box. The temperature of the battery box is regulated and controlled in a liquid and circulating air combined mode; a liquid pipeline is used for adjusting the temperature of circulating air and is adhered to the outer wall of a battery cavity so as to adjust the temperature of the side wall of the battery cavity; the flowing circulating aircan enter the battery cavity to adjust the temperature, and can adjust the temperature of the side walls of the battery cavity through the other two side walls of the battery cavity; and the temperature of the four side surfaces and the interior of the battery cavity is adjusted simultaneously through the circulating air. The battery box has the advantages of high energy utilization rate, good temperature control effect, high safety and outstanding practicability.

Description

technical field [0001] The invention relates to an electric vehicle power battery box, which belongs to the technical field of electric vehicle power battery installation structure and temperature control thereof. Background technique [0002] The power battery system is one of the key components of new energy vehicles. At present, the suitable operating temperature of the battery cell of the power battery is within a narrow range, but the vehicle usually needs to be driven in a wider temperature environment. In addition, due to various reasons, especially in high-rate applications, the battery will generate a lot of heat during charging and discharging. In order to ensure that the battery cells work under suitable temperature conditions, a temperature control device is usually equipped to adjust the temperature in the power battery box. Common cooling measures include natural air cooling, forced air cooling, liquid cooling, direct cooling, and phase change material coolin...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M10/613H01M10/625H01M10/6556H01M10/6563H01M10/6568
CPCH01M10/613H01M10/625H01M10/6556H01M10/6563H01M10/6568H01M50/20Y02E60/10
Inventor 张成海周建刚柳文琴宋宏贵
Owner DONGFENG COMML VEHICLE CO LTD