차량용 램프 내열인자에 대한 해석적 연구

The thermal performance is one of the most important factors in evaluating an automotive lamp, and is not easy for engineer to improve due to the diversified lamp designs. Achieving a better thermal performance in automotive lamps requires that every component consisting of the lamp such as reflector, bezel, lens, etc maintains its shapes and colors without any deforming or fading from the heat transfer of the bulb. It has been a courtesy that its thermal performance has been verified with experiments and CFD after the design is complete. However, the shortening automobile development period and the frequent changes in design corrupt the effectiveness of the test procedure in the thermal performance. In this study, nine factors of thermal performance were chosen and evaluated their effects on thermal performance. Among them, three main factors were studied to attain thermal performance using CFD. On the completion of this study, it is expected that the thermal performance of automotive lamps can be achieved before the stage of the thermal experiment and CFD.