中国激光, 2011, 38 (10): 1002003, 网络出版: 2011-09-28
两相冲击强化换热激光二极管用单片热沉
Micro-Channel Heat Sink with Two Phase Impinging Jets for Laser Diode Bar
激光器 激光二极管 沸腾空化耦合效应 两相冲击 场协同理论 微通道相变热沉 lasers laser diode coupling of boiling-cavitation two phase impinging jets field synergy principle micro-channel phase-change heat sink
摘要
针对大功率激光二极管(LD)的冷却需求，基于沸腾空化耦合效应，以及场协同理论，研制了一种微通道两相冲击强化相变热沉，封装腔长1.5 mm的LD线阵。实验测试了连续功率LD输出0～100 W时的电光转换效率以及电流输出功率等特性，冷却工质采用R134a，磁驱齿轮泵电机转速23 Hz时热沉热阻为0.211 ℃/W。结果显示微通道相变热沉具有良好的取热能力，能够满足大功率LD的散热要求。与改进前的热沉相比，基于场协同理论优化了的两相冲击热沉，热阻明显下降。
Abstract
A micro-channel phase-change heat sink has been developed for cooling high power continual laser diode (LD) based on coupling of boiling-cavitation in micro-channel and field synergy principle. The electron-optic conversion efficiency, output wavelength and the relation between input current and output power are measured experimentally when LD output power changes from 0 to 100 W. The cooling refrigerant is R134a. The thermal resistance of heat sink is measured as 0.211 ℃/W when the magnetic drive gear pump is operated at 23 r/s motor speed. Comparing with the previous heat sink, the thermal resistance of the micro-channel phase-change heat sink based on field synergy principle decreases significantly.
王爱国, 袁俊飞, 武德勇, 高松信, 唐大伟, 曹宏章. 两相冲击强化换热激光二极管用单片热沉[J]. 中国激光, 2011, 38(10): 1002003. Wang Aiguo, Yuan Junfei, Wu Deyong, Gao Songxin, Tang Dawei, Cao Hongzhang. Micro-Channel Heat Sink with Two Phase Impinging Jets for Laser Diode Bar[J]. Chinese Journal of Lasers, 2011, 38(10): 1002003.
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