新型交叉孔道式平板热管的性能研究

An Experimental Study of Flat Plate Heat Pipe With Interlaced Micro Grooves

提出了一种设计交叉孔道式平板热管的新思路,按照这种方法设计加工的新型结构的平板热管均热器具有较强的轴向和径向导热能力,能明显减小导热热阻;特殊的孔道结构增强了毛细作用力,能有效强化相变换热。实验测试了不同热流密度和不同充液率下该热管正常工作时的稳态温度分布,给出了不同充液率和不同热流下的热阻,得到了热管的最佳充液率,证明该热管具有良好的均热性能。

A new design method for flat plate heat pipe thermal spreader is put forward. A flat heat pipe spreader is designed and manufactured based on the new method. The new design of the heat pipe can enhance the capillary effect and reduce the thermal conduction resistance. The temperature and thermal resistance of the heat pipe are obtained under different heat fluxes and the influences of working fluid filling are studied. The experimental results proved its good performance for temperature levelling.