A battery module liquid cooling system

Abstract

The invention relates to a liquid cooling system for a battery module. The liquid cooling system comprises the battery module, a water tank, a water pump, a heat exchanger and a PLC controller; the battery module comprises a shell, a battery core bracket, battery cores, heat dissipation aluminium pipes, a copper current-carrying sheet, an insulating plate, a fixed steel frame and a screw; the battery cores are arranged in the shell in a multi-layer overlying manner; the heat dissipation aluminium pipes are arranged among every four battery cores distributed in a field-character manner; a plurality of battery core support holes and a plurality of aluminium pipe support holes are arranged on the battery core bracket; distribution of the battery core support holes and the aluminium pipe support holes is the same as that of the battery cores and the heat dissipation aluminium pipes; the copper current-carrying sheet, the insulating plate and the fixed steel frame are each provided with a plurality of aluminium pipe support holes; the battery core bracket passes through the battery cores and the heat dissipation aluminium pipes, and is fixed in the shell; and the copper current-carrying sheet, the insulating plate and the fixed steel frame sequentially pass through the heat dissipation aluminium pipes from inside to outside, and are fixed on the shell through the screw. The liquid cooling system for the battery module disclosed by the invention is good in heat dissipation effect, low in cost and high in sealing grade and security.

Description

technical field [0001] The invention relates to a liquid cooling system, in particular to a battery module liquid cooling system. 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 decreas...

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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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