随着空间制冷技术的广泛应用,微型机械制冷机得到飞速地发展。微型机械制冷机对可靠性的要求非常高。目前机械失效基本上不会影响微型机械制冷机的寿命,而污染失效则成为了微型机械制冷机的发展难题。本文首先简单介绍了微型机械制冷机的现状,然后描述了微型机械制冷机的污染失效机理以及对制冷效果的影响,最后为控制污染提了几条建议,对微型机械制冷机有关方面的研究,具有重要的意义。 With the extensive application of space refrigeration technology, micro-mechanical refrigeration has been rapidly developed. Micro-mechanical chillers require very high reliability. The current mechanical failure basically does not affect the life of micro-mechanical refrigerator, and pollution failure has become the development of micro-mechanical refrigerator problems. In this paper, the status quo of micro-mechanical refrigerator is briefly introduced. Then the pollution failure mechanism of micro-mechanical refrigerator and its effect on refrigeration are described. Finally, several suggestions for pollution control are given. It is of great significance.