The invention discloses a thermal management system for a centralized power battery pack. The thermal management system comprises first and second fans, a controller and temperature sensors, wherein the temperature sensors are mounted in the battery pack, the first and second fans are mounted on a central channel located in the battery pack, and air outlets of the first and second fans are oppositely arranged in the length direction of the central channel; the controller acquires current temperature values of corresponding positions from temperature signals output by all the temperature sensors and calculates the maximum temperature difference between the current temperature values of different positions; the controller drives the first and second fans to work alternately when the maximum temperature difference is larger than a preset temperature difference threshold until the controller detects that the maximum temperature difference is smaller than or equal to the temperature difference threshold. According to the system, air circulation paths in opposite directions are formed in different periods in such a manner that the two fans work alternately, so that the fusion rate and the thermal conduction efficiency of air in the battery pack can be increased, and the thermal balance of the battery pack can be effectively improved.
Thermal management system for centralized power battery pack
2015-04-29
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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