Temperature adjustment system of vehicle-mounted battery

Abstract

The invention discloses a temperature adjustment system of a vehicle-mounted battery. The temperature adjustment system comprises a vehicle-mounted air conditioner module, a battery temperature adjustment module and a controller, wherein the vehicle-mounted air conditioner module comprises a refrigerating branch and a battery cooling branch, the battery cooling branch is connected in series with the refrigerating branch, the refrigerating branch comprises at least one compressor and a condenser, the condenser is connected with the compressor, each battery cooling branch comprises heat exchangers and a valve, the heat exchangers are in one-to-one correspondence to the compressor, the valve is connected with the heat exchangers, the battery temperature adjustment module is connected with thebattery cooling branch to form a heat exchange flowing path, and the controller is connected with the vehicle-mounted air conditioner module and the battery temperature adjustment module and is usedfor adjusting a temperature of the battery. By the temperature adjustment system, the temperature can be adjusted when the battery of the vehicle-mounted battery is excessively high or excessively low, the temperature of the vehicle-mounted battery is maintained with a preset range, and the influence of the temperature on the performance of the vehicle-mounted battery is prevented.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a temperature regulating system for a vehicle battery. Background technique [0002] At present, the performance of the on-board battery of electric vehicles is greatly affected by the climate environment, and the performance of the on-board battery will be affected if the ambient temperature is too high or too low. Therefore, it is necessary to adjust the temperature of the on-board battery to maintain its temperature within a preset range . [0003] In related technologies, for regions with hot climate environment, by adding battery cooling system to electric vehicles, the temperature of vehicle-mounted batteries can be lowered when the temperature is too high; for regions with cold climate environment, by adding battery heating systems to electric vehicles, to increase the temperature of the on-board battery if it gets too cold. [0004] However, for regions where the su...

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Problems solved by technology

[0004] However, for regions where the summer is hot and the winter is cold, the above method cannot solve the problem of overheating and low temperature of the on-board battery, and the method of adjusting the temperature of the on-board battery is relatively rough, and it cannot be heated according to the actual condition of the on-board battery. Precise control of power and cooling power, making it impossible to ensure that the temperature of the on-board battery remains within a preset range

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