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设计了两种不同散热方式的半导体制冷器,实验表明制冷性能良好,为太阳能驱动半导体制冷装置的优化设计提供依据、奠定基础。半导体制冷模块热端采用汽车发动机散热系统标准部件、采取水冷却,能在有限的空间内将高热流密度热量散发出去,有利于提高制冷性能。半导体制冷模块在等功率状态下工作,制冷量为半导体器件最大制冷量的55%;若倾向于获得较大制冷系数,制冷量按最大制冷量的40%进行设计,制冷系数ε达1·65。
Two kinds of semiconductor refrigerators with different heat sinks are designed. Experiments show that the refrigerating performance is good and provide the basis for the optimal design of solar powered semiconductor refrigerating device. The hot end of the semiconductor cooling module uses the standard components of the automobile engine cooling system to take water cooling, which can dissipate the heat of high heat flux density in a limited space and improve the cooling performance. The semiconductor cooling module works under the condition of equal power and the cooling capacity is 55% of the maximum cooling capacity of the semiconductor device. If it is inclined to obtain a larger cooling coefficient, the cooling capacity is designed according to 40% of the maximum cooling capacity, the refrigeration coefficient is up to 1.65 .