空调系统的过冷度影响着整个系统效率及制冷量,增加系统过冷度的传统方式是增加冷凝器的和换热面积,从而导致系统成本提高及体积增加。本文设计了基于半导体热电原理的过冷器,并进行了实验对比。结果表明,采用设计的过冷器可使冷凝器出口过冷度提高1.5℃,系统COP提高6.5%。 The degree of undercooling of the air conditioning system affects the overall system efficiency and cooling capacity. The traditional way to increase the degree of system undercooling is to increase the condenser and heat transfer area, resulting in increased system cost and increased volume. In this paper, based on the principle of semiconductor thermoelectric cooler, and the experimental comparison. The results show that the design of the subcooler can make the condenser outlet subcooling increased by 1.5 ℃, the system COP increased by 6.5%.