Design and Optimization of Heat Dissipation Engine with 200W COB LED

In this paper, to replace high power luminaire of halogen lamp, heat - dissipating engine for 200W COB LED was studied. In order to solve the heat dissipation problem of high flux and high power LED luminaire thermal design and analysis were studied equipped with heat pipe and cooling fan. BR Thermal design using heat pipes and cooling fans reduced weight by 24% than aluminum heat sink. When the number of heat pipes and dissipation fins were 8 and 53, respectively, heat dissipation performance can lower the maximum surface temperature to 67.0℃. The required flow rate satisfying the heat dissipation performance was calculated by controlling the speeds of the upper and the lower cooling fan separately, and it was found that the maximum surface temperature can be cooled to 65.2℃ under the optimum control condition.