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提出一种借助于在热电冷却器热端引入微尺度冷却,以提高其制冷性能参数的新方法,并建立了相应的理论模型来刻画该过程,并在此基础上对各类有助于提高制冷性能的潜在途径进行了参数化研究。结果表明,热电臂中存在一个最佳冷却长度,可在其冷热端实现最大的温度差。讨论了将该方法在低温环境及其他几类特殊场合的应用,并分析了加工该结构的相关问题。与通过改进材料来提高制冷性能的方法相比,该方法可在材料性能已趋极限时,提供一种新的物理途径用以强化热电冷却元件制冷性能。
A new method is proposed by introducing micro-scale cooling at the hot end of the thermoelectric cooler to improve its refrigeration performance parameters. A theoretical model is established to characterize this process. Based on this, Refrigeration performance of the potential ways of parametric research. The results show that there is an optimal cooling length in the thermoelectric arm, which can achieve the maximum temperature difference between its hot and cold ends. The application of this method in low temperature environment and other special occasions is discussed. The related problems of processing the structure are analyzed. Compared with the method of improving the refrigeration performance by improving the material, the method provides a new physical way to strengthen the refrigeration performance of the thermoelectric cooling element when the material performance has reached its limit.