Efficient thermal management system for large-scale power battery and control method

Abstract

The invention discloses an efficient thermal management system for a large-scale power battery and a control method. The efficient thermal management system comprises a battery pack and multiple flatheat pipe, wherein a cooling air box is arranged at one side of the battery pack; the multiple flat heat pipes are divided into multiple rows of heat pipe arrays, all the evaporation sections are respectively and orderly clamped by battery cells and fit between the battery cells respectively, and all the cooling sections orderly pass through a wallboard of the cooling air box and are inserted intothe interior of the cooling air box; a partition board is arranged between every two cooling sections in the cooling air box, and an independent branch cooling channel for each cooling section is formed; and the system is also provided with a jet flow heat exchange system, a wind-heat heat exchange system and other systems. According to the system and the method, which are disclosed by the invention, the technical problems of heat dissipation of the battery under different working conditions, reduction of temperature difference of a large-scale battery pack and rapid preheating of the batterycan be solved; meanwhile, the working performance of the system is stable, a control mode is flexible, mounting and maintenance are convenient, and the optimization space is large, so that the systemis consistent with the development trend of battery thermal management systems and electric vehicles, and the battery thermal management system disclosed by the invention has good application prospect.

Description

technical field [0001] The invention relates to a power battery protection device, in particular to a high-efficiency thermal management system and a control method for a large power battery. Background technique [0002] In recent years, energy crisis and environmental problems have increasingly become a major problem encountered by many countries on the road to industrialization. With the increasing number of automobiles, the gasoline consumption of traditional internal combustion engine vehicles accounts for more than one-third of the global gasoline consumption, and in my country, it is estimated that more than half of the oil will be used in the automobile industry. In addition, the high pollution and noise of traditional internal combustion engine vehicles have seriously affected people's quality of life. Norway, Germany, France and other developed countries in Europe and the United States have successively announced the deadline for banning the sale of fuel vehicles ...

AI Technical Summary

Problems solved by technology

However, the weight of the entire water flow structure is still large, and the cooling water flows in the entire battery system, resulting in a large pressure loss, and the utilization rate of part of the cooling water is low, making it difficult to flexibly control according to the working conditions and eliminate local hot spots of the battery

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