A battery module with automatic temperature equalization

Abstract

The invention relates to a battery module with automatic temperature equalization, which includes a shell, a battery cell bracket, a battery cell, a heat dissipation aluminum tube, a copper current carrier, an insulating plate, a fixed steel frame and a screw rod, and the battery cells are stacked in multiple layers It is arranged in the shell, and a heat-dissipating aluminum tube is arranged between every four batteries distributed in a square shape. The battery support is provided with a number of battery support holes and a number of aluminum tube support holes. The battery support holes and The distribution of the supporting holes of the aluminum tube is the same as the distribution of the electric core and the heat-dissipating aluminum tube respectively, and the copper current carrier, the insulating plate and the fixed steel frame are all provided with a number of supporting holes for the aluminum tube, and the support of the electric core passes through the electric core The heat dissipation aluminum tube is fixed in the housing, and the copper current carrier, insulating plate and fixed steel frame pass through the heat dissipation aluminum tube from inside to outside in sequence, and are fixed on the housing by screws; The liquid cavity is filled with cooling liquid, and the heat exchanging end is a tapered structure, which has good heat dissipation effect, low cost, high sealing level and high safety.

Description

technical field [0001] The invention relates to a battery module, in particular to an automatic temperature equalizing battery module. Background technique [0002] At present, there are many heat dissipation solutions for battery packs, such as natural cooling, air cooling, liquid cooling, etc. [0003] 1. Natural cooling is to dissipate heat from the battery pack through the wind generated during the driving process of the car. The effect is not obvious, especially in hot areas, and it has little effect. [0004] 2. The air-cooling system uses the wind from the air conditioner to dissipate the heat inside the battery pack. However, there must be vents, so that the sealing level of the battery pack cannot reach IP67, and the safety will be reduced. [0005] 3. The effect of the liquid cooling system is the best. The cost of the entire cooling system is relatively expensive. The existing liquid cooling system requires liquid to enter and exit, the sealing level will also de...

AI Technical Summary

Problems solved by technology

[0003] 1. Natural cooling is to dissipate heat from the battery pack through the wind generated during the running of the car, the effect is not obvious, especially in hot areas, it has little effect

[0004] 2. The air-cooling system uses the wind from the air conditioner to dissipate heat inside the battery pack. However, there must be vents, so that the sealing level of the battery pack cannot reach IP67, and the safety will be reduced.

[0005] 3. The effect of the liquid cooling system is the best. The cost of the entire cooling system is relatively expensive. The existing liquid cooling system requires liquid to enter and exit, and the sealing level will also decrease, and the safety is low.

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