Mosfet管散热器正交试验模拟优化设计

Optimal Design of Orthogonal Experiment Simulation for Mosfet Tube Radiator

利用仿真软件ICEPAK对一款大功率MOSFET管散热器进行了热仿真模拟。为了提高散热器的散热效率以及控制散热器重量,使用正交试验法对散热器进行模拟优化设计,从基板厚度、翘片数量、翘片间隔等5个方面考察了MOSFET管散热器的尺寸参数对散热器重量与MOSFET管最高温度的影响。得到了一个散热效率最优化结果,优化后MOSFET管的最高温度较优化前下降了26.644℃,重量降低70 g。

A high power MOSFET tube radiator is simulated by Icepak. In order to improve the heat dissipation efficiency and control the weight of the radiator,the orthogonal test method is used to simulate and optimize the design of the radiator. The influence of the size parameters of MOSFET tube radiator on the weight of the radiator and the maximum temperature of MOSFET tube is investigated from five aspects, such as the thickness of the substrate,the number of warped pieces and the interval of warped pieces. The maximum temperature of MOSFET after optimization is lower than that before optimization twenty-six point six four four C,weight reduced by 70 g.