- 學位論文
LED六角錐散熱片設計分析與模具開發
Design of Hexagonal Cone LED Heat Sink Analysis and Die Exploitation
摘要
近年來由於光電產業迅速發展，因LED體積小、效率高、反應時間快、產品壽命較其他光源長、不含對環境有害的汞，所以市場上對LED的需求量大增，使得LED 產業快速成長，而台灣是全球第二大LED 生產國其出貨量僅次於日本，由此可見LED產業對台灣未來經濟成長的影響力，但LED但目前最大的難題就是如何克服溫度有效散熱，LED雖然省電、效率高，但使用壽命往往取決於散熱效果的優劣，因此散熱片扮演重要之角色，而一般散熱片產品設計方面，以方形或圓柱形較多，目前設計為六角錐形狀，因此本研究希望得到六角錐散熱片之形狀及間距等較佳之散熱效率設計。而在散熱片之製造上，透過電腦輔助金屬成形分析軟體，協助六角錐散熱片之鍛壓模具開發，最後選擇能完成六角錐散熱片產品。 本論文研究方法主要針對業界六角錐散熱片，繪製出小型六角錐散熱片，進行金屬成形與熱效率分析，實際製作模具進行鍛壓成形實驗，將鍛壓出來的小型六角錐散熱片進行熱效率分析，最後將鍛壓成形與熱效率實驗結果與分析模擬比對，驗證有限元素軟體分析的可靠與可行性，經驗證完後將有限元素分析應用於業界六角錐散熱片之開發，從外型設計、熱效率參數探討、鍛壓成形分析預估其成形噸數，到最後實際對六角錐散熱片進行鍛壓成形，將最後成品進行熱效率實驗與模擬比對。整體來說主要是為了驗證其軟體分析的可靠及可行性，經驗證軟體分析確實可行後，針對業界散熱片找出較佳散熱效率之產品尺寸進行產品的開發。
並列摘要
In recent years due to the rapid development of the optoelectronics industry, LED has the characteristics of small size, high efficiency, fast response time, longer product life than alternatives, and freedom from environmentally harmful mercury, significantly increasing market demand for LED and thus stimulating the LED Industry. Taiwan currently ranks second globally in terms of LED exports, second only to Japan, and the LED industry is extremely important to the future economic growth of Taiwan. However, the biggest problem facing the Taiwanese LED industry is how to overcome temperature cooling. Although LED is characterized by energy-saving and high efficiency, the life of LED frequently depends on the cooling effect of the pros and cons. Heat sinks thus is a important role. In general, heat sink designs can be square or cylindrical, try designed for hexagonal cone shape cone-shaped designs. This study hopes to simultaneously improve the cooling efficiency of hexagonal cone-shaped heat sink design and also heat sink spacing. Heat sink manufacture uses computer-assisted metal forming analysis software to develop a hexagonal cone heat sink forging mold. heat sink products based on a hexagonal cone shape have been shown to be superior. This study focuses on hexagonal cone cooling piece, drawing a small hexagonal cone cooling piece, and performing metal forming and thermal efficiency analysis. The actual production mold for conducting try forge forming experiments is forged from the small hexagonal cone heat sink to carry out thermal efficiency analysis. The final will the forging forming the experimental results and thermal efficiency Experiment results And simulation comparison verify the finite element software to analyze the reliability and feasibility. This phenomenon verified that the analysis of finite element software, proven after the finite element analysis used in the development of the hexagonal cone heat sink widely used in the industry, from the exterior design, thermal efficiency parameters of is effective in terms of exterior design and thermal efficiency parameters. Forge forming analysis was used to predict the forming tonnage, and the final products of the experiment and simulation were compared in terms of their thermal efficiency to verify the reliability and feasibility of its software analysis, proven software analysis is providing its reliability is verified a feasible method of finding out the size of products with better thermal efficiency heat-sink to stimulate overall industry product development.