| .Thermal simulation and optimization design on a high-power LED spot lamp[J].Optoelectronics Letters,2011,7(2):117-121 |
| Thermal simulation and optimization design on a high-power LED spot lamp |
| 余桂英 |
| College of Metrology and Measurement Engineering, China Jiliang University； |
| Abstract: |
| In this paper, thermal characteristics of the high-power LED spot lamp are reported. The emphasis is placed upon optimizing
design of the heat sink of LED spot lamp using the optimization module and the orthogonal-experiment method. Results demonstrate
that the weight of the heat sink is decreased to 46.1% of that for the initial structure, and the influence of each factor
on junction temperature and weight of the heat sink is acquired by range analysis. Finally, the influence of ambient temperature
and natural convection coefficient on the LED maximum temperature is analyzed. The results and the optimizing methodology
are of great importance to the thermal design of LED lamps. |
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