论文部分内容阅读
针对目前大功率LED灯的散热问题,研制了高效散热器件——平板微热管阵列。实验表明,平板微热管阵列具有良好的热输运能力,当蒸发段表面温度为69.5℃时,热流密度能够达到143.2 W/cm2。利用该平板微热管阵列设计了用于LED散热的散热装置,并进行了相关的实验测试和模拟研究。结果表明,该散热装置散热效果良好,测得的光源基座处的温度均低于70℃,大大低于对结温的要求。模拟结果与实验结果误差在4%以内,模型合理,可以用于该散热装置的优化设计。
For the current high-power LED lamp cooling problem, developed a highly efficient cooling device - flat micro heat pipe array. Experiments show that the plate micro-heat pipe array has a good heat transport capacity, heat flux density can reach 143.2 W / cm2 when the surface temperature of evaporation section is 69.5 ℃. The flat heat pipe array was used to design a heat sink for LED cooling, and related experimental and simulation studies were carried out. The results show that the cooling effect of the cooling device is good, the measured temperature of the light source base are lower than 70 ℃, much lower than the junction temperature requirements. The simulation results and the experimental results are within 4% error, the model is reasonable and can be used for the optimal design of the cooling device.