Developments of Saving Energy Jetting Fan without Bearing

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Project title

Code/計畫編號

MOST105-2623-E019-001-ET

Translated Name/計畫中文名

節能噴流無軸承風扇之研究開發

Project Coordinator/計畫主持人

Jung-Chang Wang

Funding Organization/主管機關

National Science and Technology Council

Co-Investigator(s)/共同執行人

王榮祖

Department/Unit

Department of Marine Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=11720083

Year

2016

Start date/計畫起

01-01-2016

Expected Completion/計畫迄

31-12-2016

Bugetid/研究經費

1000千元

ResearchField/研究領域

能源工程

近年來為因應微小化及可攜式電子產品隨著積體電路封裝技術與微小化製程進步的發展趨勢，電子元件內所含的積體電路封裝密度及速度隨之提升，但其運作頻率及發熱量也相對提高，若電子元件長時間於高溫下運作，可能會縮短使用壽命及效率，因此如何在有限的空間內提升散熱效果，就成為一個重要的研究議題。台灣的散熱模組產業一直是世界最重要的設計製造基地，如果要持續保持這樣的優勢，比其他國家更領先進一步的開發新的散熱模組技術是非常重要的。本計畫提出一種輕量化的散熱元件，以逆壓電原理為基礎，藉由電能經過逆壓電效應而產生機械振動，進而產生噴流，達到散熱目的。市面上常見的壓電風扇為懸臂樑式，因配合其葉片長度，所以佔用空間較大；而壓電片致動噴流風扇具有無葉片的特性，且相較於傳統旋轉式風扇，具有下列優點：1.結構簡單，無須保養及潤滑。2.消耗功率低，相同電量下，可延長使用時間。3.無軸承設計，體積輕薄短小，可應用於可攜式電子產品。4.壓電風扇具無扇葉特性，為零質量流率，機殼不須孔洞結構。5.壓電風扇採用壓電陶瓷結合金屬片，其中壓電陶瓷價格便宜、取得容易、可大量生產及製成任意幾何形狀。為了能夠完整充分探討最有潛力成為壓電噴流無軸承風扇的散熱模組系統的特性，所以本計畫「節能噴流無軸承風扇之研究開發」研究目的之一為建立無軸承風扇系統之理論模式及數值模擬分析方法，以作為發展的理論基礎。研究目的之二，為開發分析壓電噴流無軸承風扇系統散熱模組，以其與理論結果作比較，並可做為修正理論模式的基礎。研究目的之三為發展最佳化的壓電噴流無軸承風扇模組系統，以期使總熱阻降低至0.1 °C/W 以下。本計畫在學術方面上及工程實際應用上，皆具有相當大的研究價值。In recent years, we will cope with miniaturization and portable electronic products with the development trend of integrated circuit packaging technology and miniaturization process advances, integrated circuit packaging density and speed of electronic components contained within the subsequent upgrade, but its operation frequency and heat is also enhanced, if electronic components operate at high temperatures for a long time may shorten the service life and efficiency, how to enhance the cooling effect of the limited space, it has become an important research topic. Taiwan cooling module industry has been the world's most important design and manufacturing base, if we want to continue to maintain this advantage, even leading to further development of new cooling module technology than other countries is very important. This plan “Development of Dual Piezo Flow Study without bearing fan” proposes a lightweight cooling components, based on the piezoelectric principle, by the piezoelectric effect to generate electricity through mechanical vibrations, and produce jets achieve cooling purposes. Common market for cantilever piezoelectric fan, because with its blade length, so take up more space; and bimorph actuators jet fan with no blades characteristics, and compared to traditional rotary fan, with the following advantages: 1. A simple structure, no maintenance and lubrication. 2. Low power consumption, the same power, the extended use of time. 3. No bearing design, small compact size, can be used in portable electronic products. 4. Pressure fan with no blades feature a zero mass flow rate, the case does not have to pore structure. 5. The piezoelectric ceramic piezoelectric fan combine pieces of metal, which piezoelectric ceramic cheap price, made easy, mass production and made arbitrary geometry. To be able to fully explore the full potential to become the most characteristic double piezo flow no bearing fan cooling module system, so the purpose of this project is to establish the theoretical model of non-bearing fan system analysis and numerical simulation methods, as the development of the theoretical basis. The second purpose for the development of dual-piezo flow analysis no bearing system cooling fan modules, its comparison with the theoretical results, and as a basis for correcting the theoretical model. Three research purposes for the development of optimized dual-pressure EFI flow thermal module system, in order to make the total thermal resistance down to 0.1 ° C / W or less. The plan on the practical application of engineering and academic aspects, are of considerable research value.

Keyword(s)

雙壓電致動
合成噴流
Dual Cooling Jet
Piezoelectricity fan
Synthetic jet
Double Piezoelectric Actuator
Synthetic Jets

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Developments of Saving Energy Jetting Fan without Bearing

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