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发明授权
CN105172523B 制冷和制热循环相互独立的电动汽车空调系统 有权

制冷和制热循环相互独立的电动汽车空调系统
摘要：
一种制冷和制热循环相互独立的电动汽车空调系统，包括：制冷系统、制热系统，制热系统与制冷系统相互独立，依次实现对空气的加热和制冷，制冷系统使用R134a制冷剂，制热系统使用二氧化碳作为制冷剂。制冷系统包括：车内蒸发器、车外换热器、第一轴流风机、第一膨胀阀和汽车空调压缩机。制热系统包括：暖风芯体、二氧化碳压缩机、第二膨胀阀、第二轴流风机和车外蒸发器。制冷时，制冷系统单独制冷；制热时，制热系统单独制热；除雾时，制冷系统和制热系统同时运行，本发明提高了电动汽车空调系统的制热制冷效率，降低了能耗，从而提高了电动汽车的单次充电里程数。
摘要（英）：

The invention discloses an electric automotive air conditioning system with mutually independent refrigerating cycle and heating cycle. The electric automotive air conditioning system comprises a refrigerating system and a heating system, wherein the refrigerating system and the heating system are mutually independent, and sequentially realize air heating and air refrigeration; the refrigerating system adopts a refrigerating agent R134a; the heating system adopts carbon dioxide as a refrigerating agent. The refrigerating system comprises an automotive internal evaporator, an automotive external heat exchanger, a first axial flow fan, a first expansion valve and an automotive air conditioning compressor. The heating system comprises a warm-wind core body, a carbon dioxide compressor, a second expansion valve, a second axial flow fan and an automotive external evaporator. During refrigeration, the refrigerating system independently performs refrigeration; during heating, the heating system independently performs heating; during demisting, the refrigerating system and the heating system operate at the same time. According to the electric automotive air conditioning system disclosed by the invention, the refrigerating efficiency and the heating efficiency of the electric automotive air conditioning system are improved, and the energy consumption is reduced, so that one-time charging mileage of an electric automobile is increased.

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