Monday, March 24, 2014

Heat Pipe Technology in The Invention of High-Power LED Cooling

LED heat sinkJianjun Du said heat pipe technology in 1963 Los Alamos National Laboratory invention heat pipe , mainly used in aerospace , military . Using the principle of heat conduction , in a closed envelope filled with working medium and the phase change medium using endothermic and exothermic heat exchange . Thermal capacity exceeds any known metal.Heat pipe technology PCCooler invention riveted fins , heat pipes using internal medium vapor , liquid phase change thermal conductivity, high density heat conduction from the LED light source to sink.Large area fins dissipate heat,quickly reduce the temperature of the light source , prolonging lamp life.


LED lights only in good thermal design, the product can be both stable luminous efficiency and quality , thereby reducing heat exhaustion and enhance the life of the product with the surrounding elements. Currently , by the limitations of current technology , LED luminous efficiency is low , most of all the energy into heat. Heat to rise in temperature will cause the LED chip flux decline , poor efficiency , accelerate the aging of the chip so that it shortened the life expectancy and other issues, the issue has become a bottleneck thermal power led lighting technology in engineering applications . Mentioned PCCooler technical improvements this year in R & D LED heat sink made ​​of Jianjun Du, said: "This year we combined a variety of products and cooling technology , the most important is that the heat pipe cooling technology is applied to the combination of CPU on the LED heat sink . " cooling technology of high-power LED products is an industry problem, heat directly affects the life of the LED products , according to DU Jianjun introduced overclocking three radiators for the production of small power LED products are mainly concentrated in areas Die-cast profiles, in terms of high-power LED cooling overclocking three invested considerable effort , such as the high-power LED products on the air-cooled fins, heat pipes and other technology used .

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