臺灣博碩士論文加值系統

摘 要
本研究針對旋轉風扇應用於電子產品散熱相關研究之設計與測試。藉由改變結合於散熱鰭片上之旋轉風扇的風扇高度，對其散熱的影響做一研究與分析。使用CFDesign軟體模擬旋轉風扇位置的變化，對流場與溫度分布的影響，再與實際量測的結果做驗證，藉由實際量測來驗證是否與模擬結果相符，以維持電子產品效能及使用壽命能有效提升。
本文設定的旋轉風扇移動的距離，分別為0 mm、1 mm、2 mm、3 mm、4 mm、5 mm、6 mm、7 mm、8 mm、9 mm，固定50 W加熱功率來比較，並從數據中分析一個不但能增加熱傳速率，又不占空間的最佳化參數。


關鍵字：旋轉風扇、散熱鰭片

Abstract
This study is focus on the Vortex fan which is used in cooling design for electronics and test research, also analyzes the impact on heat dissipation by changing the height of Vortex fan which combine with the fin. I used CFDeisgn software to simulate the changes of position on Vortex fan, flow filed and temperature distribution, then compare with the actual result to see if they’re consistent. This test is designed to prove that Vortex fan can maintain the performance; also improve the life of electronics.
The moving distance of Vortex fan sets from 0mm to 9mm respectively, and compare with the fixed heating power of 50w, then find out a optimization that increase thermal conductivity, and also space-saving.


Keywords: Vortex Fan、Fin

目錄
頁次
中文摘要……………………………………………………………………….……Ⅰ
英文摘要……………………………………………………………………….……Ⅱ
目錄………………………………………………………………………….………III
圖目錄……………………………………………………………………….……… V
表目錄……………………………………………………………………….………IX

第一章 序論……………………………………………………………….…….……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離心風扇……………………………..………..…………….……3
1-3-2散熱鰭片……………………………..…………..………….……5
1-3-3數值模擬……………………………..……………..……….……5

第二章 基礎理論簡介……………………………………………………………… .8
2-1 風扇理論基礎…………………………………….……………………. 8
2-1-1 風扇組成架構…..………………………………………………..8
2-1-2 風扇葉型之型態………………………………………………..11
2-1-3 風壓風量相關特性……………………………………………..27
2-2 散熱鰭片材質…………………………………………………………33
2-3 熱傳與熱阻定義………………………………………………………33


第三章 程式模擬與實驗量測………………………………………………………34
3-1實驗與模擬流程………………………………………………….….…34
3-2電腦模擬理論基礎……………………………………………………..35
3-3實驗流程基礎……………….……………………………………….…36
3-3-1加熱裝置設計……………………………………………….…...36
3-3-1-1加熱銅塊設計……………………………………………38
3-3-1-2治具設計…………………………………………………40
3-3-2散熱模組選用.…………………………………………………...41
3-3-3溫度量測設備…….……………………………………………...42
3-3-3-1溫度擷取器………………………….…………………...42
3-3-3-2熱電偶線（Thermocouple）………………………………43
3-3-4其他實驗器材……………..……………...……...………………43
3-3-4-1導熱膏……………………………………………………43
3-3-4-2隔熱棉……………………………………………………43
3-4 實驗參數設定………………………………….………………………44
3-5 實驗量測位置設定……………………………………….……………44
3-6模擬參數設定…………………………………………………………..45

第四章 結果與討論…………………………………………………………………55
4-1 溫度分佈圖……………………………….….……………...................56
4-2 流速分佈圖(正視圖)…………………………………………….….…61
4-3 流速分佈圖(側視圖)……………………………………………….….66
4-4溫度數據…………………………………………………………….….71

第五章 結論…………………………………………………………………………74
參考文獻…………………………………………………………………………..…76

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