Bottom plate liquid cooling battery module with honeycomb-shaped heat dissipation channels

Abstract

The invention relates to the technical field of battery thermal management, in particular to a bottom plate liquid cooling battery module with honeycomb-shaped heat dissipation channels. The bottom plate liquid cooling battery module comprises cylindrical batteries, a liquid cooling plate and the honeycomb-shaped liquid cooling heat dissipation channels, the liquid-cooled plate is of a square structure, and the upper surface of theliquid cooling plate is provided with a plurality of circular grooves for inserting the bottoms of the cylindrical batteries. The plurality of honeycomb-shaped liquid cooling heat dissipation channels are fixed in the liquid cooling plate, the cooling liquid inlets and cooling liquid outlets at the two ends of the honeycomb-shaped liquid cooling heat dissipation channels penetrate through the end walls at the two ends of the liquid cooling plate and are communicated with the outside, and a cooling bottom plate matched with the liquid cooling plate in shape is arranged below the liquid cooling plate; each honeycomb-shaped liquid cooling heat dissipation channel comprises a plurality of hexagonal channels and straight channels, each hexagonal channel is of a hexagonal tubular structure, the straight channels are arranged among the hexagonal channels at intervals, and the opposite angles of the hexagonal channels in the horizontal direction are connected with the straight channels. According to the present invention, the flow path of the cooling liquid in the liquid cooling plate is increased through the changeable flow channels, and heat is better taken away.

Description

technical field [0001] The invention relates to the technical field of battery heat management, in particular to a bottom plate liquid-cooled battery module with a honeycomb heat dissipation channel. Background technique [0002] With the development of the global economy, the automobile industry is an important pillar industry of the national economy and plays an important role in the development of the national economy and society. The new energy vehicle industry is a strategic emerging industry, and the development of energy-saving vehicles is an effective measure to promote energy conservation and emission reduction. At present, energy and environmental problems are becoming more and more serious. Pure electric vehicles can achieve zero pollution during operation, and do not emit harmful gases that pollute the atmosphere at all. [0003] In an electric vehicle, the battery is its core component. Its working environment directly affects the efficiency of the battery and ...

AI Technical Summary

Problems solved by technology

[0003] In an electric vehicle, the battery is its core component. Its working environment directly affects the efficiency of the battery and the normal operation of the vehicle. During the charging and discharging process of the battery, a large amount of heat will be generated. If this part of the heat Failure to dissipate it in a timely manner will lead to accidents such as reduced battery efficiency and even spontaneous combustion. Traditional air cooling technology is not very effective in reducing battery temperature. Phase change material cooling also has the problem of increasing the weight of battery modules. The effect of battery cooling can be significantly improved

[0004] If the traditional single bottom battery is liquid-cooled, if the bottom is liquid-cooled with a large channel, the weight of the battery module will be greatly increased; the small and straight liquid-cooled channel will take away very little heat, which is not enough to achieve the purpose of battery thermal management

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