Experimental Study On Cooling Technology For Led Mining Lamp Based On Thermosiphon Heat Pipe

LED lighting has the advantages of long life, high reliability, energy saving,environmental protection relative to the traditional lighting, and it sets off a revolution inthe field of general lighting in the twenty-first century. But there are still more than80%of the electrical energy convert into heat. Therefore, the heat rejection of LED is the mostimportant issue in the design and research.With the increasing power of the LED mining lamp, traditional cooling methods aredifficult to meet the requirements of dissipate the higher heat flux. The traditional LEDmining lamp radiator was largely dependent on the aluminum fins to transfer heat fromthe surrounding air, the fin temperature distribution is uneven, and heat dissipationefficiency is relatively low. The thermosiphon heat pipe has a high thermal conductivity,excellent hypolimnion, and work directional characteristics, to become one of thepromising technique to solve the heat rejection problem of high power LED mining lamp.This paper study on cooling performance of thermosiphon heat pipe combined withLED mining lamp through the following aspects:(1)Design the thermosiphon heat pipe radiator based on the characteristics ofthermosiphon heat pipe and high-power LED mining lamp.(2)Design and product a copper thermosiphon heat pipe, and comparatively test theoperating characteristics of water and ethanol as the working medium.(3)Select the design scheme of sunflowers thermosiphon heat pipe radiator, andembed the producted thermosiphon heat pipe into the radiator of a traditional100W LEDmining lamp. Comparatively test the the chip junction temperature and temperaturedistribution of the LED mining lamp radiator.