研究生: |
吳俊逸 Chun-yi Wu |
---|---|
論文名稱: |
變頻器之散熱系統的分析及改善 Improvements on the Cooling Performance of Low Power Inverter |
指導教授: |
洪俊卿
Jin-Tsing Hong |
口試委員: |
管衍德
none 陳恩宗 En-Tsung Chen |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 機械工程系 Department of Mechanical Engineering |
論文出版年: | 2005 |
畢業學年度: | 93 |
語文別: | 中文 |
論文頁數: | 189 |
中文關鍵詞: | ICEPAK 、電子冷卻 |
外文關鍵詞: | Cooling system, ICEPAK |
相關次數: | 點閱:273 下載:1 |
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變頻器是將直流電源轉換成交流的功率轉換器(DC-to-AC Power Converter),廣泛的應用於各種工業產品上,如交流電動機速度控制,家電產品(冷氣機、洗衣機、跑步機……等等)及UPS 不斷電電源供應器等。現今自動化產業界在開發小馬力數(小於3 馬力)的變頻器時由於講究成本低、體積小,造成製造商在機構與散熱設計上頭疼的問題。
本研究主要是以Icepak 建立數值模型進行模擬分析並將模擬結果與實測結果作比對,以確定模型的正確性。再進一步分析變頻器散熱系統之熱場及速度場分布狀況,以此觀察系統中散熱不良之處。針對系統散熱不良之處提出改善方法,經由改善案的模擬與分析來找到本系統最佳的散熱設計。
Small horsepower Dc-to-Ac power converters(less than 3 horsepowers)are widely used in various industrial products, such as motor speed control,UPS power supply, and home appliances. This study employs the commercial electronic cooling package-Icepak to setup an analysis model for a small commercial power converter. The flow and temperature fields are determined and studied computationally. The surface temperature at several critical
electronic components obtained numerically are compared with values measured experimentally. It is shown that the computational model can give satisfactory results. In order to improve the performance of the converter,several improvements on the basic design are proposed and studied computationally and the best design among these proposed models are suggested.
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