船用大功率LED灯散热性能研究

摘要

High-power LED usually is in small size and big current, most of the input power converted into thermal energy,so heat dissipation is the key technology to be solved. This paper introduces the method of thermal design and module of thermal resistance of High-power LED; and describes heat dissipation design for illumination high-power LED on ship. The results from the simulation and analysis and the assessment experiment had proved that the method and the radiator design met the demand of heat dissipation of the LED lamp on ship.%大功率LED体积小、工作电流大,输入功率中大部分转化为热能,散热是需要解决的关键技术.文章介绍了大功率LED热设计的方法,针对大功率LED的封装结构,建立了热传导模型.对某船用大功率LED灯具进行了散热设计,通过仿真分析和热评估试验验证了所采用的散热方法和设计的散热器满足LED灯具的散热要求.