Lightweight power battery box design method, system and battery box based on temperature control

Abstract

The application discloses a temperature control-based lightweight power battery box design method, system, and battery box. The method includes: performing a deformation collision test on the original battery box to obtain the impact area and non-impact area of ​​the battery box; designing a heat conduction channel and heat dissipation air slots; after the heat dissipation performance test and safety crash test, the final design of the power battery box is obtained. The system includes the original impact data acquisition platform, temperature control design platform, temperature control test platform, and safety impact test platform; the original impact data acquisition platform is used for deformation collision testing, and the impact area and non-impact area are obtained; the temperature control design platform is used Based on the design of heat conduction ducts and cooling air slots, the temperature control test platform is used for heat dissipation performance testing; the safety impact test platform is used for safety impact tests. The application not only ensures sufficient rigidity of the box body, but also ensures heat dissipation requirements, and reduces the weight of the box body as much as possible.

Description

technical field [0001] The present application belongs to the field of new energy vehicle technology, and specifically relates to a temperature control-based lightweight power battery box design method, system, and battery box. Background technique [0002] With the improvement of people's living standards, the number of vehicles is increasing. With the increase of vehicles, it brings environmental damage. Therefore, electric vehicles are born. Compared with traditional vehicles using internal combustion engines, pure electric vehicles With many convenient advantages, such as zero emissions, energy saving, etc., it is considered a key research area by automakers. [0003] As more and more electric vehicles are involved in traffic safety, vehicle collisions are inevitable. For electric vehicles, the key component that affects the safety performance of electric vehicles is the battery pack. As the carrier of the battery pack, the battery box has very high design requirements...

AI Technical Summary

Problems solved by technology

[0004] However, in order to ensure that the battery box has sufficient strength, it is necessary to use a large amount of high-strength steel and add a lot of support structures, and this will inevitably lead to a substantial increase in the weight of the box, and the increase in the weight of the box, It will inevitably lead to an increase in vehicle energy consumption, and rigid safety and weight reduction have become a pair of contradictions

On the other hand, during the discharge of the power battery, due to the internal chemical reaction, it will also generate a lot of heat, which needs to be dissipated in time, otherwise the chemical reaction will be too violent due to the accumulation of heat, and more heat will be generated faster. Even cause fire, explosion, and too much rigid support of the support box hinders the flow and distribution of heat

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