基于温差发电的光学器件自冷却系统

Thermoelectric Self-cooling System of Optical Devices

大功率光学器件如高压汞灯广泛应用于日常生活中。为了防止其冷却系统电路失效,同时降低能耗,本文提出基于温差发电的大功率光学器件零能耗自冷却系统,展示在高压汞灯上设计、仿真与优化自冷却系统的过程,并基于热容热阻方法构建了系统动态数值计算模型。结果表明,自冷却系统能实现更优的散热效果。此外,在模型仿真精度(偏差小于6%)验证的基础上,分析了热电模块关键参数对自冷却系统散热能力的影响,指出了系统优化方向。

High-power optical devices, such as ultra-high performance(UHP) lamps, are widely used in our daily life. To prevent the circuit failure of its cooling system and reduce the energy consumption, in this paper, we develop the zero-energy thermoelectric self-cooling(TSC) system for a UHP lamp, demonstrate the process of designing, simulating and optimizing TSC system, and propose a simulation model based on thermal resistance-capacitance(RC) network. The results show that the TSC system can achieve better heat dissipation than the conventional cooling system.Furthermore, based on the proposed simulation model(within 6% error), we analyzed the impact of key parameters of thermoelectric modules on heat dissipation, and determine the direction of system optimization.