熱電醫用保溫箱（TMC）基本上是利用熱電制冷器來達到冷卻效果，相較於其他具制冷能力之保溫箱櫃，TMC具有體積輕巧、可攜性高之優點，適合於對溫度具敏感性之生物醫藥產品，例如：血清、疫苗等作保溫及運輸之用途。
　　本文針對熱電式醫用保溫箱之效能作改善，熱電晶片模組冷端吸熱金屬薄板假設為對稱的兩側延伸單一鰭片，對箱內空氣進行冷卻，並對薄板厚度作最佳化改善；在熱端多鰭片散熱模組方面，透過鰭片間單一通道的最大散熱效應來作鰭片間距的尺寸最佳化。
　　在實驗中，吾人測試不同間距之散熱模組的冷卻效能，當保溫箱在滿載的情況下，箱內溫度從27℃降到6℃時，熱端模組鰭片間距最佳化前後所需降溫時間從108分鐘縮短為83分鐘，且於6℃時TMC的性能係數在鰭片間距最佳化前後亦從0.05提升到0.08。

　　Thermoelectric medical cooler（TMC）is essentially a cooler with a thermoelectric cooling device. Comparing to other cooler with active cooling ability, TMC is very compact, light-weighted, and quite suitable for transporting the medicines such as serum, vaccine etc. which are very sensitive to temperature variation.
　　In this study, the efforts were focused on the improvement of cooling performance for a TMC. The sheet metal, attached to the cold end of thermoelectric module（TEM）, used to cool down the indoor air is assumed to be a symmetrically extended single fin. The optimized thickness of the sheet metal is then obtained. In the analysis of multiple fin module which is attached to the hot end of TEM, the optimized fin spacing is obtained by maximizing the heat released by a single subchannel.
　　Tests with and without optimization on heat sink were also conducted in this study to examine the difference in cooling performance. Under the simulated full-load condition, the cooling time required to cool down the indoor temperature from 27℃ to 6℃ is found to be 83 vs 108 minutes for the case with vs without optimal fin spacing, and the COP of TMC when the indoor temperature is kept at 6℃ is found to 0.08 vs 0.05 for the case with vs without optimal fin spacing.

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