An air-cooled heat dissipation battery pack and a car

Abstract

The invention discloses an air-cooled and heat-dissipating battery pack, which includes a battery box, an air-cooled heat-dissipating component, a battery management system and a battery module, and the battery management system and the battery module are fixed inside the battery box; the battery box includes an upper The cover plate and the lower box body, the upper cover plate and the lower box body are sealed and connected, and an access panel is embedded on the side wall of the lower box body; The first cooling fins are fixed on the inner and outer surfaces of the access panel, the second cooling fins are fixed on the inner and outer surfaces of the access panel, the fan is fixed inside the battery box, and the battery management system is connected to the battery module respectively. communicate with the fan. In the present invention, heat dissipation fins are fixed on the inner and outer surfaces of the battery box, which improves the heat transfer coefficient between the air and the battery box, accelerates heat transfer and cooling speed, and improves heat dissipation efficiency; the fan circulates the air in the battery box , to carry out forced air cooling and heat dissipation, so that the temperature of the battery cells is more uniform.

Description

technical field [0001] The present invention relates to the field of power batteries, and more specifically, the present invention relates to an air-cooled and heat-dissipating battery pack and a vehicle. Background technique [0002] As the energy source of electric vehicles, the battery pack is the most critical component of electric vehicles, which directly affects the performance of electric vehicles. The temperature is one of the important factors affecting the performance of the battery pack. The battery generates a large amount of heat during operation due to the influence of space and accumulates, causing the temperature of the battery pack to be uneven, thereby affecting the consistency of the single cells of the battery pack. In order to keep the battery pack in the most suitable working condition and to maximize the performance and life of the battery pack, it is particularly important to dissipate heat from the battery. [0003] Air cooling is to use air as a co...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of low heat transfer coefficient, slow cooling speed, and low efficiency between the air and the battery case of the existing air-cooled battery pack, the present invention innovatively provides an air-cooled and heat-dissipating battery pack, the air-cooled heat-dissipating battery pack There are cooling fins fixed on both sides of the box inside and outside of the bag, which increases the heat transfer coefficient between the air and the battery box, improves the heat transfer and cooling speed, and improves the heat dissipation efficiency

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