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US09222710B2 Heat-pump automotive air conditioner and defrosting method of the heat-pump automotive air conditioner 有权
热泵汽车空调和除霜方式的热泵汽车空调

Heat-pump automotive air conditioner and defrosting method of the heat-pump automotive air conditioner
摘要：
A refrigerant cycle (16) for cooling as a prototype is provided with: an internal condenser (8) connected to a discharge circuit of an electric compressor (9) and disposed on a downstream of an internal evaporator (7) of an HVAC unit (2); a first heating circuit (18) connected to a receiver (11) through a switching unit (17) arranged on an inlet side of the external condenser (8); and a second heating circuit (23) connected between an outlet side of the receiver (11) and a suction side of the electric compressor (9) and provided with a second expansion valve (20) and an external evaporator (21). A heat pump cycle (24) for heating is formed by a second heating circuit (23) including the electric compressor (9), the internal condenser (8), the switching unit (17), the first heating circuit (18), the receiver (11), the second expansion valve (20), and the external evaporator (21).
摘要（中）：

作为原型冷却的制冷剂循环（16）设置有：连接到电动压缩机（9）的排出回路并设置在HVAC单元的内部蒸发器（7）的下游的内部​​冷凝器（8） 2）; 通过布置在外部冷凝器（8）的入口侧的切换单元（17）连接到接收器（11）的第一加热回路（18）; 以及连接在所述接收器（11）的出口侧和所述电动压缩机（9）的吸入侧并且设置有第二膨胀阀（20）和外部蒸发器（21）的第二加热回路（23）。 用于加热的热泵循环（24）由包括电动压缩机（9），内部冷凝器（8），切换单元（17），第一加热回路（18），第二加热回路 接收器（11），第二膨胀阀（20）和外部蒸发器（21）。

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