带闭式空腔的铜铝复合柱翼型散热器研究及优化

Research and Optimization of a Copper-aluminum Column-wing-type Radiator with Closed Cavity

本文对铜铝复合柱翼型散热器闭式空腔的传热情况进行理论研究,得到闭式空腔铝翼管各表面温度的数值解析解、闭式空腔内部和单柱散热器的散热量等。然后对常见的此类铜铝复合柱翼型散热器进行实验测试,将测试所得的闭式空腔和散热器散热量与理论计算结果进行分析,得出理论数值与实验数值相差均在5.77%以内,闭式空腔内的散热量与其当量直径的函数关系图和闭式空腔内散热量较大时其当量直径的范围;并提出了提高散热器的整体散热量,优化其闭式空腔的具体措施。

In this article takes theoretical research on the heat transfer procedures about the copper-aluminum column-wing-type radiator with closed cavity, gets the theoretical solution of temperature of different parts of aluminum-wing-pipe, the heat dissipating capacity of closed cavity and single-column in copper-aluminum column-wing-type radiator, etc; and analysis the heat dissipating capacity between the experimental data the theoretical the radiators and closed cavity, obtains the comparison of the experimental data and theoretical data is beyond 5.77 %, gets the chart of functional relationship between heat dissipating capacity and equivalent diameter, and the distribution of equivalent diameter under relatively high heat dissipating capacity condition, presents the concrete measures for heat dissipating capacity enhancement and structure optimization of the closed cavity in the radiator.