相变材料的固液相变具有较高的相变潜热且相变体积变化小,在间歇性工作的电子器件的温控中得到广泛的应用.本文采用将铜泡沫嵌入相变材料中的方法来强化同液相变的传热性能的方法,提出一种封装有金属泡沫和相变材料的复合式散热器结构,实验研究了该散热器的加热表面的温度与时间的变化关系,分析铜泡沫孔隙率、孔密度以及石蜡物性等各个参数对该复合式热沉散热效果的影响.
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