Water cooling method for vehicle lithium power cell set and device thereof

Abstract

The invention discloses a water cooling method for a vehicle lithium power cell set and a device thereof. Besides that the surface of the lithium power cell set is mounted with a water cooling radiating device, one side of each cell core shell is directly mounted with an internal water cooling radiating device during production, and the internal water cooling radiating device of the lithium power cell set and the cell monomer is distributed at intervals. The invention combines the original water cooling radiating device of the lithium power cell set to realize the requirement of all-round and balanced heat radiation for the lithium power cell set and overcome the defect of poor heat radiation performance among the cell monomers on the existing lithium power cell set. The internal water cooling radiating device is simple in manufacturing, convenient in processing and has obvious radiating effect, thus improving the safety and reliability in the use process of the lithium power cell set, realizing the heat balance management in the water cooling process, and being applicable to the vehicle and vessel lithium power cell set featuring simplicity, practicality and reliability thereof.

Description

technical field [0001] The invention relates to a battery cooling method, in particular to a water cooling method for a lithium power battery pack used in a vehicle and a cooling device manufactured by the method. Background technique [0002] With the continuous improvement of environmental awareness and the gradual consumption of non-renewable energy sources, finding new alternative energy sources has become a new revolutionary direction. In the vehicle and ship industry, the traditional power comes from the combustion process of gasoline in the engine, which not only generates a lot of heat, but also produces toxic and harmful gases such as CO and SO. Using lithium battery packs as an alternative energy source has become a consensus. The existing lithium power battery pack will generate a lot of heat during the working process. When the temperature rises, the inside of the lithium power battery will be in a serious unbalanced state, which will directly affect the service...

AI Technical Summary

Problems solved by technology

The existing lithium power battery pack will generate a lot of heat during the working process. When the temperature rises, the inside of the lithium power battery will be in a serious unbalanced state, which will directly affect the service life of the battery and pose a serious safety hazard. Therefore, the lithium power battery The cooling process when the battery pack is in use becomes an inevitable link.

The existing lithium power battery cooling methods mainly include air cooling and water cooling. Air cooling mainly relies on the cold air poured into the machine from the outside during driving to convectively cool the lithium power battery pack. The cooling process is affected by external air temperature, wind speed and other conditions. Limitation, the cooling process is not easy to control, especially the leeward or side cooling effect is worse, it is easy to cause uneven heat dissipation, affecting the performance and service life of lithium-ion battery packs

Although the water-cooling method cools down evenly, and the cooling effect is stable and reliable, but because lithium-powered batteries are mostly used in groups, the cooling process is concentrated on the surface of the lithium-powered battery pack, making it easy to produce cooling dead angles between adjacent batteries, causing a large number of Heat accumulation cannot be effectively dissipated, which affects the safe use of lithium-ion battery packs

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