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研究生: 賴威菖
Wei-Chang Lai
論文名稱: 結合修正式TRIZ及電腦輔助工程分析改善LED檯燈結構之研究
A Study of Improving LED Table Lamp Structure by Using Modified TRIZ Method and Computer Aided Engineering Analysis
指導教授: 林榮慶
Zone-ching Lin
口試委員: 傅光華
Kuang-hua Fuh
許覺良
none
學位類別: 碩士
Master
系所名稱: 工程學院 - 自動化及控制研究所
Graduate Institute of Automation and Control
論文出版年: 2011
畢業學年度: 99
語文別: 中文
論文頁數: 106
中文關鍵詞: 支撐結構散熱結構TRIZ檯燈
外文關鍵詞: table lamp
相關次數: 點閱:160下載:3
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本文利用修正式TRIZ分群法多重步驟,進行LED檯燈散熱結構與支撐的創新設計與研發。首先搜尋現有的期刊、專利、論文等知識文件資料,再針對LED檯燈散熱結構與支撐結構之技術功能分類。然後參考相關知識文件中散熱結構與支撐結構形式之情況,定義出所需要之改善需求。再將所要改善之需求及其對應之工程特性,依照特徵群組的改良優先次序,帶入修正式TRIZ分群法,對應出可行之發明法則。然後依發明法則提出改善的創新LED檯燈散熱結構與支撐結構,本文逐步經過多步驟的LED檯燈散熱結構與支撐結構改善,並依次對補償參數及尺寸規劃進行逐步改善,並藉熱傳軟體與有限元素軟體輔助模擬分析。最後再將新設計之LED檯燈之散熱結構與支撐結構對照現有專利,避免可能的專利侵權,達到改善之需求。
有關散熱部分之改良,首先建立一般常用的散熱鰭片,在其基底建立總共有十二顆的LED。假設LED平均燈源之熱源為一瓦/秒,經由熱傳模擬軟體(FLUENT)觀察其散熱情況。針對其散熱不足之部分,我們利用修正式TRIZ分群法進行改良。在改良過程中,利用修正式TRIZ分群法對散熱鰭片的方向與形狀做逐步改善,並逐步進行散熱分析。最後本文將風扇置於鰭片與鰭片間之空位,得到一種新的散熱結構。再配合熱傳模擬軟體模擬整個散熱結構的溫度,顯示出風扇距離散熱片的距離越近,會有更好的散熱效果。有關LED檯燈之檯燈支撐結構之改變,本文經由修正式TRIZ分群法逐步改善,並就所得各項新結構進行有限元素法及力學公式的計算分析,最後創新得到本文之新的LED檯燈支撐結構。本文之LED檯燈支撐結構改善,考慮檯燈燈罩組裝方式,檯燈支架之轉軸及支架高度調整,三大部位的改善。本文創新之檯燈燈罩之組裝方式與外面一般用螺絲的檯燈方式不同,其使用的組裝方式以滑動的凹凸槽配合為主,使組裝上非常之方便,更可節省螺絲材料與相對應之工具。而就創新之LED檯燈支架之轉軸部分,則是將零件置於內部,利用一層配合一層的安裝方式與盤型彈片取代一般彈簧作為彈性元件,其除可增加外型的美觀外更可以防止灰塵的附著。另外本文創新之支架高度調整部分則改良為伸縮支架,其具有摺疊支架的優點。且再經由本文設計之押扣式插銷調整高度時,可以除去調整LED檯燈高度時,上支架與下支架之間的轉軸因折疊而凸起所占用之空間。以上本文之創新LED檯燈支撐結構,由於全部零件皆無使用螺絲固定,因此無須工具即可組裝。在搜尋其他相關專利並確認各項元件無侵權的可能性後,即可將前述本文有關創新的LED檯燈支撐結構的元件整合,組合成一台完整創新結構之LED檯燈。
經本文之研究結果顯示,應用修正式TRIZ分群法的優先次序流程,可以有效的幫助開發人員降低所需要之開發時程。


The paper uses multiple engineering analytical procedures of modified TRIZ contradiction matrix to carry out innovative design as well as research and development (R&D) of LED table lamp structure. First of all, related information is searched from the existing periodicals, patents and research papers. Focusing on the classification of technical functions of LED table lamp structure, and referring to the situation of structural forms, the paper defines the required improvement needs, and brings the needs and their corresponding engineering characteristics to a modified TRIZ clustering method according to the improvement priority of feature clusters, and then finds the corresponding feasible invention principles. Step-by-step improvement is made on compensation parameters and dimensional planning. Finite element software and heat transfer software are used to help simulate the analysis. Finally, the newly designed LED table lamp is compared to the existing patents, avoiding possible infringement of the existing patents and step by step achieving the need of improvement.
The main modification of the paper can be divided into two major parts: cooling form of LED table lamp and assembling way of table lamp support structure. Regarding improvement of the cooling part, the commonly used cooling fins are firstly established. At the bottom of the cooling structure are established with a total of 12 LED lights. Let the average heat source of LED light be 1 watt/second. Through the heat transfer simulation software (FLUENT), the cooling situation is observed. Focusing on the part of insufficient cooling, modified TRIZ clustering is used to make improvement. In the improvement process, TRIZ clustering method is used to step by step improve the direction and shape of cooling fins, and step by step make cooling analysis. Finally, a fan is placed in the empty space between two fins, achieving a new kind of cooling structure. With the help of heat transfer simulation software, the temperature of the entire cooling structure is simulated, showing that the closer the distance of the fan from cooling fins, the better the cooling effect. Regarding the assembling way of the support structure of LED table lamp, the paper uses TRIZ clustering method to make step by step improvement, and then employs finite element method and mechanics equation to analyze and calculate the various new structures. After final innovation, the LED table lamp structure of the paper is acquired. The assembling way of the table lampshade is different from the assembling way of general table lamps that use screws. The assembling mechanism adopted is mainly the mating surface groove, which gives great convenience to assembling, and even saves screw materials and the corresponding tools. As to the shaft of the innovative LED table lamp support stand, this part is placed in the inside. Employing the layer-by-layer installation way and using a disc-shaped dome sheet to serve as an elastic component for replacement of general springs not only can increase beauty to its appearance, but also can prevent dust from adhering to it. Besides, the innovative support stand of LED table lamp in this study is an improved retractable support stand, which has the advantage of folding of the support stand. In addition, during height adjustment of the press-button bolt designed by the paper, it can eliminate the space occupied by the protruding of shaft between upper support stand and lower support stand caused by folding. For the abovementioned innovative LED table lamp support structure developed by the paper, since all the parts need no use of screw for fixing, no tool is required for assembling. After searching other related patents and validating that the various components have no possibility of infringement involved, the components of cooling structure and support structure of the related innovative LED table lamp are integrated to become an LED table lamp with complete and innovative structure.
As shown from the research results of the paper, using the priority procedures of modified TRIZ clustering method can effectively help R&D workers to reduce their required R&D time. The paper’s use of the corresponding conflict matrix of the engineering feature parameter clusters with similar physical meaning, in terms of application, can reduce the waste of time on making wrong choices. According to the improvement priority of feature parameters, related procedures are carried out in proper order. Through step-by-step and logical contemplation, engineers are assisted to think, analyze and find solutions more efficiently, shortening their time on R&D.

摘要 I Abstract IV 誌謝 VII 目錄 VIII 圖目錄 XI 表目錄 XV 第一章 緒論 1 1.1 研究背景與動機 1 1.2 文獻回顧 3 1.2.1 LED散熱相關文獻 4 1.2.2 檯燈支架相關文獻 7 1.2.3 轉軸相關文獻 8 1.2.4 TRIZ相關文獻 9 1.3 論文架構 12 第二章 LED檯燈理論介紹 13 2.1 LED檯燈介紹 13 2.2 LED理論介紹 15 2.2.1 LED發光原理 16 2.2.2 LED封裝之溫度 18 第三章 修正式TRIZ分群法介紹 21 3.1 修正式TRIZ分群法判斷流程 23 第四章 LED檯燈內部風扇與散熱鰭片分析 26 4.1 風扇與散熱鰭片之熱傳公式 27 4.2 熱傳遞理論 30 第五章 LED檯燈創新散熱結構與結構支撐模擬分析 33 5.1 建立模擬模型之步驟 33 5.1.1 Fluent熱傳軟體介紹 34 5.2 運用修正式TRIZ分群法改良散熱結構 43 5.3 散熱鰭片機構之重量改善 48 5.4 風扇與散熱鰭片距離之改善 53 5.5 LED檯燈燈罩組裝改良 59 5.6 轉軸結構改良 62 5.7 檯燈支撐結構改良 65 5.7.1支架固定器改良 68 5.7.2 支架固定結構再改良 71 5.8 LED檯燈整體組裝與計算 75 5.8.1 檯燈整體組裝 75 5.8.2 檯燈轉軸之扭力計算模式 77 5.8.3檯燈轉軸內部扭力值計算 80 5.8.4 盤型彈簧之應用理論模式 81 5.9 LED檯燈結構模擬分析 83 第六章 結論與建議 93 6.1 結論 93 6.2 建議 95 參考文獻 97 附錄A 運用修正式TRIZ創新之LED檯燈結構圖 101 作者簡介 106

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