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研究生： 沈徵明
Shen, Cheng-Ming
論文名稱： LED機車頭燈散熱分析
Thermal Analysis of Motorcycle Headlight
指導教授： 周榮華
Chou, Jung-Hua
學位類別： 碩士
Master
系所名稱： 工學院 - 工程科學系碩士在職專班
Department of Engineering Science (on the job class)
論文出版年： 2014
畢業學年度： 102
語文別： 中文
論文頁數： 68
中文關鍵詞： 機車LED頭燈 、高功率LED 、散熱鰭片
外文關鍵詞： Motorcycle headlights, LED bulbs, cooling fin
相關次數： 點閱：101  下載：1 
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    • 摘要
    台灣地方狹小，機車一是種方便的交通工具，但機車照明大多以傳統鹵素燈泡為主，而因鹵素燈泡溫度高，且較耗電，故LED取代鹵素燈泡將成為趨勢。
    本研究將針對機車頭燈內，有限空間之高功率LED燈泡散熱鰭片之設計做討論與改善，探討侷限空間內使用之高功率LED，其散熱鰭片設計重點為何? 實驗結果顯示，經過設計之縱向散熱鰭片，能有效降低熱源溫度約20℃，改善比率為16.9%，預期將風扇移除後，其LED核心溫度要與移除風扇前相同，亦即風扇能降低溫度之效果約為15.7%，模擬後之結果，相當於有散熱風扇設計之LED頭燈降溫的效果，因此可以藉由LED晶片周圍縱向散熱鰭片之設計，達成代替可靠度較低之風扇裝置。
    在此研究中另驗證機車LED頭燈，能完全取代傳統鹵素燈泡，於常溫中設計一個能維持LED晶片正常運作的散熱鰭片設計，亦可成為未來，在侷限空間內，使用之高功率LED燈設計的方向。

    SUMMARY
    This study focuses on motorcycle headlights for which high power LED bulb fin design within the limited space is conducted and improved to lower temperature. LED bulbs are from those available in the market. Experiments are carried out using halogen bulbs as the control group for comparison. Moreover, simulations are adopted for optimal thermal design. After the design and implementation of a vertical fin, the heat source temperature can effectively be reduced by about 20 ℃, improving by 16.9%.

    目錄 摘要 I Abstract II 致謝 VI 表目錄 XI 圖目錄 XII 符號說明 XVI 第一章 緒論 1 1-1前言 1 1-2研究動機與目的 2 1-3 文獻回顧 3 1-3-1機車的起源[5] 3 1-3-2白光LED的起源 4 1-4研究流程 6 第二章 基礎理論分析 7 2-1 LED發光原理 7 2-2 白光LED的介紹 9 2-3 散熱基板之作用與種類 9 2-4 LED熱能傳遞 12 2-4-1熱傳導 12 2-4-2熱對流 13 2-4-3熱輻射 13 2-4-4熱組定義 14 2-5 機車照明的介紹 15 2-5-1 機車照明法規及光型 15 2-5-2 LED光學的度量單位及其意義[28] 17 第三章 數值模擬 24 3-1三維穩態熱傳分析 24 3-1-1二維熱傳 24 3-1-2三維熱傳 26 3-2 ANSYS模擬流程 27 3-2-1 ANSYS模擬流程圖 28 3-3 幾何模型 29 3-3-1匯入幾何模型 29 3-3-2定義材料性質 30 3-3-3建立分析網路 30 3-3-4定義邊界條件 31 第四章 實驗方法與設備 33 4-1實驗方法 33 4-1-1 量測機車大燈燈殼上LED燈泡與鹵素燈泡溫度 33 4-1-2量測使用不同燈泡之流明值 41 4-1-3 光型量測 42 4-1-4 燈泡中心溫度量測 46 4-2實驗模組 50 4-2-1 發光二極體 50 4-2-2 散熱基板 51 4-2-3 熱介面材料 51 4-2-4散熱鰭片 53 4-3實驗設備 54 4-3-1直流電源供應器 54 4-3-2數位式電壓表 54 4-3-3數位式電流表 55 4-3-4汽車電瓶 56 4-3-5紅外線熱像儀 56 4-3-6照度計 57 4-3-7數位溫度計 58 第五章 結果與討論 59 第六章 結論與建議 65 6-1結論 65 6-2建議 66 參考文獻 67

    參考文獻

    [1] Lexus官方網站, "http://www.lexus.com.tw/cars.aspx?typ=57#/LS Hybrid_gallery."
    [2] 中華民國交通部公路總局, "http://www.thb.gov.tw/TM/Default.aspx," 2014.
    [3] S. Xuehui. and Y. Yukun., "Synthesis and Photochromism of Acrylic Ester Copolymers Bearing Pendant Viologen Groups," CHINESE JOURNAL OF POLYMER SCIENCE, vol. 14(3), pp. 249-254, 1996.
    [4] EUR-lex, "http://eur-lex.europa.eu/homepage.html," 2014.
    [5] 洪連成, "台灣機車產業發展與未來," 生活科技教育月刊, vol. 四十三卷 第三期, 2010.
    [6] 吳淑華, 李尚青, 和 吳昭東, "騎過半世紀-機車特展專刊," 國立科學工藝博物館, 2008.
    [7] J. H. Schulman, R. J. Ginther, and C. C. Klick, "A Study of the Mechanism of Sensitized Luminescence of Solids," JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 97(4), 1950.
    [8] 陳怡夫, "我國白光(LED)照明產品商機之研究," 工研院IEK系統能源組, 2001.
    [9] 陳興, "白光LED簡介," 工業材料, vol. 162期(6), 2000.
    [10] Y. Wu and A. Agarwal, "5.07 - GaN- and SiC-Based Power Devices," in Comprehensive Semiconductor Science and Technology, P. Bhattacharya, R. Fornari, and H. Kamimura, Eds., ed Amsterdam: Elsevier, 2011, pp. 299-339.
    [11] Nichia, "http://www.nichia.co.jp/en/about_nichia/2006/2006_122001.html," 2006.
    [12] 蕭弘清, "LED照明節能應用技術手冊," 經濟部能源局, 2012.
    [13] S. G. Wang, "Fabrication and Characteristics of Ion-implanted 4H Silicon Carbide Metal-Semiconductor Field-Effect Transistors on a P-Type Epilayer," CHINESE JOURNAL OF PHYSICS, vol. 51, NO. 2, pp. 337-346, 2013.
    [14] 陳隆建, "發光二極體之原理與製程(第三版)," 全華出版社, 2011.
    [15] 田民波, 呂輝宗, 和 溫坤禮, "白光LED照明技術," 五南出版社, 2011.
    [16] 廖啟男, "三原色發光二極體操作特性研究," 國立中山大學電機工程學系碩士論文, 2007.
    [17] A. Christensen and S. Graham, "Thermal Effects in Packaging High Power Light Emitting Diode Arrays," Applied Thermal Engineering, vol. 29, pp. 364-371, 2009.
    [18] M. Meneghini, M. Dal Lago, N. Trivellin, G. Mura, M. Vanzi, G. Meneghesso, et al., "Chip and Package-related Degradation of High Power White LEDs," Microelectronics Reliability, vol. 52, pp. 804-812, 2012.
    [19] M.-H. Chang, D. Das, P. V. Varde, and M. Pecht, "Light Emitting Diodes Reliability Review," Microelectronics Reliability, vol. 52, pp. 762-782, 2012.
    [20] N. Narendran, Y. Gu, J. P. Freyssinier, H. Yu, and L. Deng, "Solid-state Lighting: Failure Analysis of White LEDs," Journal of Crystal Growth, vol. 268, pp. 449-456, 2004.
    [21] S. I. Chan, W. S. Hong, K. T. Kim, Y. G. Yoon, J. H. Han, and J. S. Jang, "Accelerated Life Test of High Power White Light Emitting Diodes Based on Package Failure Mechanisms," Microelectronics Reliability, vol. 51, pp. 1806-1809, 2011.
    [22] 李豫華, "發光二極體的散熱技術," 科學發展, vol. 435期, 2009.
    [23] M. Shatalov, A. Chitnis, P. Yadav, M. F. Hasan, J. Khan, V. Adivarahan, et al., "Thermal Analysis of Flip-chip Packaged 280 nm Nitride-based Deep Ultraviolet Light-emitting Diodes," Applied Physics Letters, vol. 86, p. 201109, 2005.
    [24] R.-H. Horng, R.-C. Lin, Y.-C. Chiang, B.-H. Chuang, H.-L. Hu, and C.-P. Hsu, "Failure Modes and Effects Analysis for High-power GaN-based Light-emitting Diodes Package Technology," Microelectronics Reliability, vol. 52, pp. 818-821, 2012.
    [25] Z.-Y. Liu, B.-H. Y. Cheng Li, Yao-HaoWang, and H.-B. Niu, "Effects of YAG: Ce Phosphor Particle Size on Luminous Flux and Angular Color Uniformity of Phosphor-Converted White LEDs," JOURNAL OF DISPLAY TECHNOLOGY, vol. 8, NO. 6,, 2012.
    [26] E. E. Narimanov and I. I. Smolyaninov, "Beyond Stefan-Boltzmann Law: Thermal Hyper-Conductivity," physics.optics, vol. 1109.5444v1, 2011.
    [27] 蕭耀榮 和 鄭文欽, "機車頭燈照明法規之研究," Journal of Technology, vol. Vol. 25, No. 2, pp. 141-149, 2010.
    [28] TRIFIRE, "http://3fire.blogspot.tw/2007/10/led.html," 2007.
    [29] LEDinside, "http://www.ledinside.com.tw/knowledge/20070604-290.html," 2007.
    [30] 佳皇科技公司, "http://www.led-shop.com.tw/page41.htm," 2006.
    [31] 東亞照明, "http://www.chinaelectric.com.tw/word.htm," 2002.
    [32] 郭啓田, "市面上各種燈具光源介紹," 能源與生活, vol. 能源報導2010年06月, p. 33, 2010.
    [33] E. B. Becker, G. F. Carey, and T. Oden, "Finite Elements An Introduction," Prentice-Hall, 1981.
    [34] "Ansys Manual Derivation of Heat Flow Matrices," Ansys Theory Reference, Reversion 5.1, vol. 6-4-6, 1994.
    [35] 許宏孝, "應用有限元素法作高壓高頻變壓器之三維穩態熱傳分析," 逢甲大學電機工程學系碩士班碩士論文, 2004.
    [36] "Ansys Workbench Training Manual Ansys Release 10.0,1st Edition," vol. August 26, 2005.
    [37] 加藤金屬, "http://www.katometals.com/metal.asp," 2012.
    [38] 光陽機車, "http://www.kymco.com.tw/," 2013.
    [39] F. Chen, K. Wang, Z. Mao, X. Fu, C. Li, M. Zhao, et al., "Application Specific LED Packaging for Automotive Forward-lighting Application and Design of Whole Lamp Module," IEEE, vol. 978-1-4673-1965-2/12, 2012.
    [40] "Thermal Management of Cree® XLamp® LEDs," vol. CLD-AP05 REV 3C, 2014.
    [41] J. P. Gwinn and R. L. Webb, "Performance and Testing of Thermal Interface Materials," Microelectronics Journal, vol. 34, pp. 215-222, 2003.
    [42] 力祥資訊, "http://www.fujiei.com.tw/," 2014.
    [43] L. FLIR Systems Co., "FLIR紅外線熱像儀入門," 2008.

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