博碩士論文 993303016 完整後設資料紀錄

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DC.contributor機械工程學系在職專班zh_TW
DC.creator吳昆財zh_TW
DC.creatorKun-Tsai Wuen_US
dc.date.accessioned2015-8-6T07:39:07Z
dc.date.available2015-8-6T07:39:07Z
dc.date.issued2015
dc.identifier.urihttp://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=993303016
dc.contributor.department機械工程學系在職專班zh_TW
DC.description國立中央大學zh_TW
DC.descriptionNational Central Universityen_US
dc.description.abstract目前發光二極體在固態照明上的應用越來越廣,可以應用在室內照明、戶外照明、背光源、汽車照明、交通號誌燈及其它產業等。當LED的應用趨勢愈普及化,意味著LED的效率正在逐步提升當中。由於LED的輸入功率只有30%轉換成光,70%轉換成熱,因此,LED熱管理的問題更受到重視。若想要降低LED的接面溫度與熱阻值,其中最重要的一項是電路板的導熱銅箔層設計。 本研究最主要的目的是設計一款最佳化的金屬芯印刷電路板,可以降低來自於晶片的熱。使用散熱模擬分析、散熱實驗,對金屬芯印刷電路板散熱性能做探討。透過SolidWorks Flow Simulation軟體的分析與實驗結果的比對,要先確認分析的合理性,再尋找散熱解決對策。 比較六款不同金屬芯印刷電路板的導熱銅箔層設計,並藉由接面溫度及熱阻來評估在高功率LED模組上的散熱效能。從散熱模擬分析及散熱實驗結果顯示,由於Type-3導熱銅箔層的熱電耦合設計和具延伸面積設計,LED模組呈現出大約最低的接面溫度65.73°C與熱阻值17.21°C/W。依據模擬結果與散熱量測可以確認基板的幾何型式直接影響到LED的接面溫度及熱阻。 zh_TW
dc.description.abstractThe light-emitting diodes (LED) in the application of solid-state lighting is interested. LEDs one can be used as indoor lighting, outdoor lighting, backlighting, daytime running light, traffic light and the other industries, etc.. When the trend of the increasing popularity of LED applications, the efficiency of LED has also been increased gradually. Due to only 30% of the input power been converted to light and nearly 70% been converted to heat. The thermal management issue of the LEDs become important and crucial. To reduce the junction temperature and thermal resistance, one important issue is copper foil layer design of Printed Circuit Board. The main purpose of this study is to design an optimizing Metal Core Printed Circuit Board in order to reduce the heat from the chipset. This work investigates the cooling ability of the MCPCB by thermal simulation analysis and thermal experiments of LED. This study uses commercial software, SolidWorks Flow Simulation, to analyze the temperature field and the results are compared with experimental data to verify the simulation analysis. Six different copper foil design of MCPCB were compared. The junction temperature and thermal resistance, were used to evaluate the thermal performance on high power LED module in this study. From the thermal simulation analysis and thermal experiments results, the LED module showed a minimum junction temperature and thermal resistance at about 65.73°C and 17.21°C/W due to the thermoelectric coupling design and extended area design of the copper foil layer in Type-3. According to the simulation results and temperature measurement, we can make sure that the substrate geometry has directly effects on the junction temperature and thermal resistance of an LED. en_US
DC.subject發光二極體zh_TW
DC.subject接面溫度zh_TW
DC.subject熱阻值zh_TW
DC.subject電路板的導熱銅箔層設計zh_TW
DC.subject熱電耦合設計zh_TW
DC.subject延伸面積設計zh_TW
DC.subjectlight-emitting diodesen_US
DC.subjectjunction temperatureen_US
DC.subjectthermal resistanceen_US
DC.subjectcopper foil layer design of Printed Circuit Boarden_US
DC.subjectthermoelectric coupling designen_US
DC.subjectextended area designen_US
DC.title金屬芯印刷電路板設計對高功率發光二極體的散熱影響zh_TW
dc.language.isozh-TWzh-TW
DC.type博碩士論文zh_TW
DC.typethesisen_US
DC.publisherNational Central Universityen_US

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