均溫板等效模型建立與熱特性量測

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姓名

邱奕昌(Yi-chang Chiou) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

均溫板等效模型建立與熱特性量測
(A simple model for evaluating the thermal properties of vapor chamber)

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摘要(中)

本論文利用質量流率計算出均溫板蒸氣室任意空間分佈之等效熱傳係數，利用紅外線穩態熱阻量測實驗與限元素分析法找出多孔性結構的等效熱傳係數，由實驗與模擬之驗證與分析，我們成功建立均溫板等效熱傳模型，且找出均溫板熱阻與質量流率的相關性，並可做為評估均溫板優劣參數。接著針對不同操作條件下的均溫板進行分析與比較，並找出最佳的操作條件。

摘要(英)

We success fully built an effective model that neatly describes heat-conducting behavior of vapor chamber, by obtaining the equivalent heat transfer coefficient of vapor space and the equivalent heat transfer of wick. and then we discovered the relationship between thermal resistance and mass flow rate of vapor chamber. Once the relation has found, we can treat mass flow rate as a factor of heat-conducting ability for every vapor chamber. Futhermore, we analyzed and compared different scenarios, and found the best operating condition of vapor chamber.

關鍵字(中)

★ 均溫板
★ 發光二極體
★ 熱阻

關鍵字(英)

★ Vapor chamber
★ Light emitting diodes
★ Thermal resistance

論文目次

目錄
摘要 I
ABSTRACT II
致謝 III
圖目錄 VI
表目錄 IX
第一章緒論 1
1.1 前言 1
1.2 研究動機與目的 3
1.3 文獻回顧 5
第二章基本原理 8
2.1 引言 8
2.2 LED基本原理 8
2.3 基本熱傳原理 12
2.3.1 熱傳導 12
2.3.2 熱對流 15
2.3.3 熱輻射 16
2.3.4 熱阻 18
2.4 均溫板工作原理 19
2.5 性能極限 22
第三章均溫板參數分析與等效模型建立 24
3.1引言 24
3.2質量流率 25
3.3 均溫板的等效熱傳係數 30
3.4 均溫板模型建立 33
3.4.1有限元素分析簡介 33
3.4.2 均溫板的幾何結構及材料參數、邊界條件設定 34
第四章實驗驗證與分析 37
4.1 引言 37
4.2 實驗架構 37
4.3 實驗與模型驗證 40
4.4 評估參數 45
4.5 特性分析與討論 47
4.6 均溫板散熱應用 53
第五章結論 56
參考資料 57

參考文獻

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指導教授

鐘德元、孫慶成
(Te-yuan Chung、Ching-cherng Sun)

審核日期

2013-2-25

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