基于正交设计的密封机箱散热翅片的参数仿真优化

Parameter Simulation and Optimization for Cooling Fins of a Sealed Case Based on Orthogonal Design

对于纯自然对流的密封机箱来说,散热翅片的设计对整个密封机箱的散热至关重要。通过正交试验设计方法,利用ICEPAK热仿真分析软件,通过极差分析得知散热翅片的翅片厚度A、基板厚度B,翅片间距C,翅片高度D对密封机箱散热的影响规律。结果表明,翅片高度D对密封机箱的散热性能影响最为显著,而翅片厚度A和翅片间距C对密封机箱的散热性能影响不显著。

For a sealed case with pure natural convection,the parameter of cooling fins is crucial to the heat dissipation of the sealed case.Through the orthogonal experiment design method and the ICEPAK thermal simulation analysis software,the influence law of fin thickness(A),substrate thickness(B),fin pitch(C)and fin height(D)of the cooling fins has been found in this paper.The results show that the height of the fin(D)has the most obvious influence on the heat dissipation performance of the sealed case;while the fin thickness(A)and fin spacing(C)have little effect on the heat dissipation performance of the sealed case.