LED散熱片微結構設計與分析

LED散熱片微結構設計與分析學生：陳炯宏指導教授：莊為群教授國立虎尾科技大學車用光學設計與通訊系統產業碩士專班摘要現今社會上，許多的照明設備已開始廣泛運用發光二極體(Light Emitting Diode, LED)，LED優點在於省電、省空間、壽命長、環保及反應快，高功率LED所面臨的最大問題即是如何有效散熱，LED產生的高溫所帶來的最大影響為使用壽命及效能，所以散熱是首要解決的問題，最常使用的散熱方式為增加表面積利用空氣的對流將熱帶走。鋁合金加工容易、成本低、也有不錯的散熱效果，因此成為許多散熱原件的主要材料。本論文實驗方法是將現有的散熱片作為研究題材，於散熱片上增加微結構，使散熱片與空氣所接觸的表面積增加，來降低LED所產生的熱能。將設計後的散熱片製作模具進行散熱分析，最後將實驗結果與模擬數據做比對，驗證微結構設計有助於散熱效率，再進行散熱片微結構設計變更來提升散熱效能。關鍵詞：發光二極體，散熱片

關鍵字

發光二極體；散熱片

並列摘要

Design and Analysis of the Microstructures of the Heat Sink for LED Daylights Student：Chiung-Hung Chen Advisors：Wei-Ching Chanug Graduate Institute of Electro-Optical and Materials Science National Formosa University Abstract Nowadays, many of the lighting equipment has begun extensive use light-emitting diodes (Light Emitting Diode, LED), LED advantages of energy saving, space saving, long life, environmental protection and fast response, high power LED that is the biggest problem facing how effective heat dissipation, LED heat generated by the biggest impact for the life and performance, so the heat is the primary problem, the most commonly used methods to increase the surface area of the use of cooling air convection heat away. Aluminum processing is easy, low cost, also has a good cooling effect, thus becoming the main material of many heat originals. The paper of the existing experimental methods as a research subject heatsink, the heatsink to increase microstructure, the heat sink surface area in contact with air increases to reduce heat generated by the LED. The design of the heat sink after making molds for cooling analysis, the final results will be compared with the simulated data do verify microstructure design helps heat dissipation efficiency, then heat sink design changes to improve the microstructure thermal performance. Keywords: Light Emitting Diode,Heatsink.