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An electric vehicle battery air cooling device

An electric vehicle battery and air cooling technology, which is applied to the power unit, the arrangement of the cooling combination of the power unit, and electrical components, etc., can solve the problem of temperature rise of the battery pack, temperature difference of the exothermic battery pack, affecting battery performance and life, etc. problems, to achieve uniform temperature distribution, uniform heat dissipation, uniform flow rate

Active Publication Date: 2016-04-13
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Batteries are one of the core components of electric vehicles and hybrid vehicles, and their performance directly affects the performance of electric vehicles and hybrid vehicles. However, due to technical constraints, it is difficult to make major breakthroughs in the performance of power batteries in the short term. , if the electric vehicle is to be commercialized, it is necessary to ensure that the battery works under optimal conditions to improve its performance and prolong its life
The power battery pack used in electric vehicles is composed of multiple battery modules connected in series and parallel. During the charging and discharging process of the battery, heat will be generated, which will increase the overall temperature of the battery pack, and when the temperature is too high, it will seriously affect the performance of the battery. life, or even directly lead to battery failure
At the same time, when charging and discharging, the heat release or uneven heat dissipation of each single cell in the battery pack will cause temperature differences in the battery pack, and batteries with high local temperatures will age faster, and long-term operation will destroy the consistency of the battery pack, thus causing battery pack failure

Method used

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  • An electric vehicle battery air cooling device
  • An electric vehicle battery air cooling device
  • An electric vehicle battery air cooling device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 2 As shown, ten cylindrical battery modules 102 are arranged in the battery box 101 of this embodiment, the battery modules 102 are arranged in a staggered arrangement, and the flow direction of the cooling air is figure 2 In the direction of the arrow, along the flow direction of the cooling air inside the battery box 101, a spoiler 103 is respectively arranged on the inner wall of the battery box 101 both sides. The spoiler 103 is semi-cylindrical, and the height of the spoiler 103 is the same as The heights of the battery modules 102 are equal, and the distance between adjacent spoilers 103 on the inner walls of both sides of the battery box 101 is equal to the distance between adjacent battery modules 102. The battery modules are arranged in a staggered arrangement, so the disturbance The flow device 103 is staggered with the adjacent battery modules 102, and the flow turbulence device 103 and the inner wall 104 of the battery box are manufactured a...

Embodiment 2

[0026] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that the battery module 102 has a cuboid structure, and the section of the spoiler 103 is a rectangle, which is half the size of the battery module 102 .

Embodiment 3

[0028] Such as Figure 4 As shown, there are 8 battery modules 102 in this embodiment, which are arranged in series in the battery box 101, and semi-cylindrical spoilers 103 are arranged on the inner walls of the battery box 101 on both sides along the cooling air flow direction. The spoiler 103 is arranged in line with the adjacent battery modules 102 , and other features are the same as those of the first embodiment.

[0029] The spoiler 103 can be processed as a whole with the inner wall 104 of the battery box, or can be designed separately, and then nested on the inner wall 104 of the battery box.

[0030] A plurality of battery modules 102 are generally placed in the air-cooled battery box 101, and these battery modules 102 can be arranged in sequence or in a staggered arrangement. When the cooling air flows through the battery modules 102 in the battery box 101, due to the battery The space and shape between the inner walls 104 of the box and the spaces and shapes betwe...

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PUM

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Abstract

The invention discloses an air cooling apparatus for a battery for an electric car. The air cooling apparatus comprises a battery tank provided with a plurality of battery modules connected to each other therein, and turbulence devices disposed on the inner walls at two sides of the battery tank along a flow direction of cooling air. The air cooling apparatus can make the cooling air flowing through each battery module in the battery tank uniform in velocity and consistent in flow state, so that the temperature of each battery module in the battery tank is distributed uniformly. The air cooling apparatus for the battery of the electric car is simple in structure and obvious in effect, can be easily realized and has wide application prospects.

Description

technical field [0001] The invention relates to a cooling device, in particular to an air cooling device for an electric vehicle battery. Background technique [0002] Batteries are one of the core components of electric vehicles and hybrid vehicles, and their performance directly affects the performance of electric vehicles and hybrid vehicles. However, due to technical constraints, it is difficult to make major breakthroughs in the performance of power batteries in the short term. Therefore, if the electric vehicle is to be commercialized, it is necessary to ensure that the battery works under optimal conditions to improve its performance and prolong its life. The power battery pack used in electric vehicles is composed of multiple battery modules connected in series and parallel. During the charging and discharging process of the battery, heat will be generated, which will increase the overall temperature of the battery pack, and when the temperature is too high, it will ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/6561B60K11/06
CPCY02E60/10
Inventor 王红民孙炎军杨志周耀华
Owner SOUTH CHINA UNIV OF TECH