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A thermal management system for a power battery

A technology of thermal management system and power battery, applied in the field of thermal management system, can solve the problems of increasing battery weight, leaking battery, battery short circuit, etc., and achieve the effect of avoiding continuous work, low battery weight, and high safety

Active Publication Date: 2018-04-20
ANHUI ANKAI AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of airflow for thermal management usually blows the air-conditioning air directly into the battery box, allowing the wind to directly contact the battery. This will cause the battery to short circuit due to the condensation of water vapor due to the excessive temperature difference; the use of liquid phase for thermal management, Leakage usually occurs instead of a battery short circuit, and the use of a liquid phase thermal management system also increases battery weight

Method used

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  • A thermal management system for a power battery
  • A thermal management system for a power battery
  • A thermal management system for a power battery

Examples

Experimental program
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Embodiment 1

[0027] Such as image 3 As shown, the battery modules 2 are arranged in a row and multiple columns in the battery box 1 . That is, correspondingly, the number of small cavities 33 in the airbag 3 should be the same as the number of battery modules 2 , and the small cavities 33 are also correspondingly arranged in a row and multiple columns.

Embodiment 2

[0029] Such as Figure 4 As shown, the battery modules 2 are arranged in multiple rows and multiple columns in the battery box 1 . That is, on the basis of Embodiment 1, a partition is added in the middle, so that the small cavities 33 are arranged in multiple rows and multiple columns.

[0030] Working process of the present invention is as follows:

[0031] When in use, the airbag is arranged inside the battery box, and then the battery module is arranged in the small cavity of the airbag.

[0032] When the controller receives the temperature sensor signal and needs to be cooled, the controller controls the air conditioner compressor to turn on to the cooling state, and at the same time opens the first control valve on the intake pipe and closes the second control valve on the exhaust pipe. At this time, the air conditioner compressor The machine blows cold air into the airbag, and the airbag inflates and completely contacts the battery module, thereby cooling the battery ...

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PUM

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Abstract

The invention relates to a thermal management system for a power battery. The thermal management system comprises a battery box body, wherein multiple battery modules are arranged in the battery box body; airbags are arranged between the multiple battery modules, and between the battery modules and the inner wall of the battery box body; a temperature sensor is arranged in the airbags; the airbags are connected with an air inlet pipe and an air exhausting pipe which are provided with a first control valve and a second control valve respectively; the air inlet pipe is connected with an air condition compressor; the temperature sensor is connected with the input end of a controller; and the air condition compressor, the first control valve and the second control valve are connected with the output end of the controller. According to the technical scheme, the battery modules can be heated or cooled by pumping cold air or hot air to the sealed airbags, so that the short circuit of the battery caused by water vapor condensation due to the direction contact between the cold air or hot air and the battery modules can be avoided, the safety of the battery in use is improved, and the battery is light in weight.

Description

technical field [0001] The invention relates to the field of power batteries, in particular to a heat management system for a power battery. Background technique [0002] At present, zero-emission electric vehicles have become the main force of urban new energy vehicles, and the high and low temperature performance of the power battery as the power source of electric vehicles is generally poor. Heating the battery under high temperature conditions, and cooling the battery under high temperature conditions, so that the power battery can be used normally. The thermal management system of power batteries on the market has two ways of thermal management through airflow or thermal management through liquid phase. The use of airflow for thermal management usually blows the air-conditioning air directly into the battery box, allowing the wind to directly contact the battery. This will cause the battery to short circuit due to the condensation of water vapor due to the excessive te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/617H01M10/6564H01M10/625
CPCH01M10/617H01M10/625H01M10/6564Y02E60/10
Inventor 李兵方明凤付冠东吴东李韧朱鹤丁传记陈顺东
Owner ANHUI ANKAI AUTOMOBILE
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