Thermal Analysis And Structural Design Of The High-Power LED Lamp

LED light has some advantages. Such as environmental pollution, low powerconsumption, high luminous efficiency and long life. However, thermal issues become animportant factor restricting its development.This article includes two parts of the ansys finite element simulation and the productionof physical. First propose two models of high-power LED light radiators. They arehoneycomb-type radiator and column radiator. By increasing the convective heat transfersurface area, honeycomb-type radiator improve its cooling efficiency. Columnar radiator havea larger heat capacity, so its thermal efficiency is high. However, ansys thermal analysisresults show that the cooling effect of the two radiator model are both not very well.According to the characteristics of the cylindrical radiator, increasing the convective heattransfer area can effectively improve the thermal efficiency of the cylindrical radiator. Themain measures taken include: take holes on the aluminum plate surface of the radiator; takeholies on the side of aluminum plate ofthe radiator; change solid cooling aluminum rod tocylindrical cooling aluminum rod. These improvements have a certain impact on coolingefficiency, but the impact is little. To further increase the convective heat transfer surface areaof the radiator, propose the fin-type radiator. Through the optimization of its structuralparameters, including the optimization the number, length and width of the fin of the thethermal bar, Eventually propose the optimal design program.Because the cooling efficiency of the fin-type radiator is significantly higher than thehoneycomb-type radiator and column radiator, we choose to make the physical model offin-type radiator and measure its temperature. Finally, make optimization to the physicalstructure of the fin-type radiators. By three optimization of fin-type radiators, optimize thestructure parameters and come to the best physical model.