抄録
As we know that LED has a bright future for its long life time, good endurance of heavy impact, no mercury containing and most importantly, potentially high efficiency, energy conservation and low carbon dioxide emissions. This paper has concentrated on the optimum design of LED heat sink in order to increase the efficiency of LED external heat diffusion. At first, we have selected the height of heat sink, the thickness of fin, the width of fin, the radius and the fin number as design variables, and have assigned the design points via the orthogonal array based on the design of experiment method. Then, the simulation models of LED heat sink are created by Solidworks, and then the simulation was implemented by the COMSOL software. Next, we have constructed the second-order polynomial approximation of response surface for the maximum temperature by the multiple regression analysis. At last, the optimum design point was determined by the use of the quadratic polynomial approximation of response surface.
