The invention belongs to the technical field of battery cooling, and particularly relates to a thermal management system of an automobile. The thermal management system comprises following componentsconnected in sequence: a compressor, a condenser, an evaporator, a battery pack connected with the evaporator in parallel and a heat exchanger, and the refrigerant at the upstream of the evaporator and the refrigerant at the downstream of the battery pack are subjected to heat exchange in the heat exchanger. Refrigerants on the downstream of the battery pack are subjected to cold energy recovery through the heat exchanger, the recovered refrigerants cool the refrigerants on the upstream of the evaporator, the super-cooling degree of the refrigerants on the upstream of the evaporator is increased, the refrigerating capacity of the evaporator is reduced, the energy utilization rate is increased, and the problem that the passenger compartment cooling effect is poor due to refrigerant distribution can be solved. The cooling requirements of the passenger compartment and the battery pack are met, and the load of the compressor is reduced. According to the scheme, the super-cooling degree ofthe refrigerant flowing into the compressor can be improved, the liquid refrigerant is prevented from flowing back to the compressor, and the liquid impact phenomenon in the compressor is avoided.
本发明属于电池冷却技术领域,具体涉及一种汽车的热管理系统。热管理系统包括依次连接的压缩机、冷凝器和蒸发器,与所述蒸发器并联的电池包,和换热器;所述蒸发器上游的冷媒和所述电池包下游的冷媒于所述换热器中进行热交换。通过换热器对电池包下游的冷媒进行冷量回收,回收的冷媒冷却蒸发器上游的冷媒,增加蒸发器上游的冷媒的过冷度,减轻蒸发器的制冷量,提高了能量的利用率,能够避免因冷媒分流导致乘员舱降温效果差的问题,保证乘员舱和电池包的降温需求,减小压缩机的负荷。本方案还能够提高流入压缩机的冷媒的过冷度,防止液态冷媒回流至压缩机,避免压缩机内发生液击现象。
Automobile thermal management system and automobile
汽车的热管理系统及汽车
2021-02-02
Patent
Electronic Resource
Chinese
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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