Liquid-cooling heat dissipation device for heat pipe of high-rate lithium-ion power battery module

Abstract

The invention discloses a liquid-cooling heat dissipation device for a heat pipe of a high-rate lithium-ion power battery module. The liquid-cooling heat dissipation device comprises a module housing1, a battery core 2, a pouring sealant 3, a cold end of a heat pipe 4, a heat pipe heat-insulating end 5, a hot end of the heat pipe 6, a water inlet 7, a water outlet 8 and a water tank 9; and the heat pipe 10 comprises the cold end of the heat pipe 4, the heat pipe heat-insulating end 5 and the hot end of the heat pipe 6. By using very high thermal conductivity of the heat pipe, a temperature difference between the surface of the heat pipe in the battery module and cooling water is extremely small to cool the battery module; the cooling water does not flow through the inside of the module, so that a leakage risk is avoided; and the liquid-cooling heat dissipation device is simple in structure, high in heat exchange efficiency and good in security.

Description

technical field [0001] The invention relates to a high-rate lithium ion power battery module heat pipe liquid cooling heat dissipation device. Background technique [0002] The national sustainable development strategy requires the use of clean energy. Electric vehicles are the main direction of new energy vehicles. Lithium-ion power batteries are the energy storage components of electric vehicles and are the core components of electric vehicles. When the car is in emergency acceleration, the battery needs to be discharged at a high rate. The fast charging of the car requires the battery to be charged at a high rate. When the battery is charged and discharged at a high rate, the heat generation increases sharply. If the heat cannot be dissipated in time, the internal temperature of the battery module and battery pack will exceed the operating range, greatly affecting the performance of the battery cell, and even causing a thermal safety accident. [0003] The heat dissipati...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems of liquid cooling, such as the risk of liquid leakage, low heat transfer efficiency, complex process, and low heat transfer rate of air cooling, and adopt heat pipes with higher thermal conductivity and no hidden danger of liquid leakage to dissipate heat Way

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