摘要
本研究利用流體力學分析軟體，針對高功率 LED 汽車頭燈的原始模型進行模擬分析與散熱設計，首先先進行增加鰭面的設計，先增加鰭片的散熱面積，經過完整參數分析後設計出對於投射模組有較佳效能之散熱模組；再以此投射模組之較佳散熱設計為參考，套入整組 LED 汽車頭燈進行散熱設計改善流道方向，並整合實驗驗證與模擬分析之結果，確認出適用於此原型且具良好散熱效果之整體散熱模組設計。 這個研究新型具有與外界通風之散熱流道的底座設計，使方案不會引響車輛外觀的造型，將散熱模組放在於此流道內提升散熱效能 此散熱方案來解決 LED 汽車頭燈之散熱問題。最後之研究結果顯示此新型散熱設計具有相當良好之散熱效能，與原始設計相比可降低約 20℃之效果，且能使 LED 晶片在90℃之安全溫度下運作，並且具有良好之均溫性。總結來說本研究所建立之結合數值模擬、CNC 實體製作與實驗驗證的研發設計系統，將能幫助解決 LED 應用於汽車頭燈開啟時散熱問題，並且可以做為未來開發 LED 汽車頭燈散熱至一般 LED 燈具之參考與應用均溫性。
並列摘要
n this study, using fluid dynamics analysis software for high-power LED car headlights of the original model to conduct simulation analysis and thermal design, first be carried out to increase the fin surface design, the first increase in fin cooling area, after the complete parameter analysis designed for the projection module has better performance thermal module; Then as a better projection module thermal design as the reference, set into the whole group of LED automobile headlamps designed to improve conduct heat flow direction, and integration of experimental verification and simulation results confirm that for this prototype possessed good thermal the overall effect of thermal module design. The research model has the cooling with outside air flow channel base design, sound scheme does not cause the appearance of the vehicle shape, the cooling module on this flow tract enhance the cooling efficiency of this cooling solution to solve the heat dissipation LED car headlights problem. Finally the research results show that this new cooling design has a very good heat dissipation performance, with the original design compared to lower about 20OC of the effect, and make the LED chip at 90OC for the safe temperature to operate, and has with good temperature uniformity . Summary speaking of this study establish binding numerical simulation, CNC fabrication and experimental verification of physical research and design systems that will be able to help solve the LED used in car headlights turned on heat dissipation, and can be used as the future development of LED car headlights to heat general reference for LED lamps and application temperature uniformity.