Automatic temperature-equalizing battery module

Abstract

The invention relates to an automatic temperature-equalizing battery module which comprises a shell, a cell bracket, cells, radiating aluminum pipes, a copper current-carrying sheet, an insulating plate, a fixing steel frame and a screw rod, wherein the cells are arranged in the shell in a multilayer overlapped form; one radiating aluminum pipe is arranged among each four cells distributed in the shape of a Chinese character Tian; a plurality of cell support holes and a plurality of aluminum pipe support holes are formed in the cell bracket; the distributions of the cell support holes and aluminum pipe support holes are as same as those of the cells and the radiating aluminum pipes; a plurality of aluminum pipe support holes are formed in the copper current-carrying sheet, the insulating plate and the fixing steel frame; the cell bracket passes through the cells and the radiating aluminum pipes and is fixed in the shell; the copper current-carrying sheet, the insulating plate and the fixing steel frame successively pass through the radiating aluminum pipes from inside to outside and are fixedly arranged on the shell through screw rods; cooling liquid chambers are formed in the radiating aluminum pipes; the cooling liquid chambers are filled with cooling liquids; a heat exchange end has a conical structure, good radiating 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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