LED水族燈之結構與散熱改良研究

• Main Author: 黃志銘
• Format: Thesis
• Language: Chinese; English
• Published: 2012
• Subjects: 水族燈; 散熱結構; 燈架結構; 反射罩結構; LED; aquarium light; TRIZ; heat dissipation structure; light bracket structure; reflective lid structure; evener
• Online Access: http://ir.lib.ntust.edu.tw/handle/987654321/32665; http://ir.lib.ntust.edu.tw/bitstream/987654321/32665/-1/index.html

國立臺灣科技大學機械工程系 學位：碩士 指導教授：林榮慶 本文利用修正式TRIZ分群法發明法則，進行LED水族燈散熱及燈架整體結構的創新設計與研發。首先搜尋現有的期刊、專利、論文等知識文件資料，再針對LED水族燈散熱及燈架整體結構之技術功能分類。然後參考相關知識文件中散熱及燈架整體結構形式之情況，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，依照特徵群組的發明法則之改良優先次序，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水族燈散熱及燈架整體結構，本文逐步經過多步驟的LED水族燈散熱及燈架整體結構改善，並藉熱傳軟體與光學模擬軟體輔助模擬分析。最後再將新設計之LED水族燈之散熱及燈架整體結構對照現有專利，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，首先建立專利號US20120044713的散熱鰭片，其圓盤基底總共設有二十一顆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散熱媒介做逐步改善，並逐步進行散熱分析。最後本文將散熱媒介由空氣轉為水液體，得到一種較有效率的散熱方法。再配合熱傳模擬軟體模擬整個散熱結構的溫度，另外，當泵浦的流速增加，也會有更好的散熱效果。關於LED水族燈架整體結構，本文經由修正式TRIZ分群法逐步改善，最後得到本文之創新LED水族燈架整體結構。本文之LED水族燈燈架整體結構改善，考慮到LED水族燈之反射罩組裝方式及結構、燈架本體，三大部位的改善。本文創新之LED水族燈反射罩組裝方式與外面一般用螺紋的水族燈方式不同。其使用的組裝方式以環型卡槽配合為主，使組裝上非常之方便，更可較低模具製作的複雜性。而就改良後LED水族燈反射罩結構方面，將其反射罩內部幾何形狀由圓錐轉變為半橢圓形，改善部分區間的光源強度，使整體光源更加平均。另外，創新LED水族燈燈架本體方面，其LED水族燈可在可在具有溝槽的創新式燈架做移動，以配合不同水草的擺放位置做變更，達到更有效率的照明。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水族燈的散熱結構之元件整合，組合成一台完整創新結構之LED水族燈。 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 the invention rules of modified TRIZ clustering method to carry out heat dissipation of LED aquarium light, as well as the innovative design and research and development (R&D) of the entire light bracket structure. First of all, knowledge document information is searched from the existing periodicals, patents and research papers. Focusing on the heat dissipation of LED aquarium light and the entire light bracket structure, the paper carries out classification of their technical functions. After that, referring to the conditions of heat dissipation and the entire light bracket structural form in relevant knowledge documents, the paper defines the required improvement. According to the improvement priority of the invention rules of feature clusters, the paper substitutes the required improvement and its corresponding engineering features in the modified TRIZ clustering method, resulting in the feasible invention rules. After that, according to the invention rules, the paper proposes innovative improvement of the LED aquarium light and the entire light bracket structure. Having performed step-by-step improvement in the heat dissipation of LED aquarium light and the entire light bracket structure in multiple procedures, the paper uses heat transfer software and optical simulation software to help undergo simulation and analysis. Finally, the heat dissipation of the newly designed LED aquarium light and the entire light bracket structure are compared with the existing patents, avoiding possible infringement of the past patents, and meeting the need of improvement. Regarding improvement in heat dissipation, the paper firstly establishes a heat sink with Patent No. US20120044713. Its disc base has a total of 21 LEDs. It is supposed that the average heat source of LED light source is 1 watt/second. Through heat transfer simulation software, FLUENT, its heat dissipation condition is observed. Focusing on the part of heat dissipation insufficiency, modified TRIZ clustering method is employed to carry out improvement. In the improvement process, step-by-step improvement of the heat dissipation media is performed on the heat sink by modified TRIZ clustering method, and step-by-step analysis of heat dissipation is made. Finally, the paper changes the heat dissipation media from air to be water liquid, achieving a more efficient heat dissipation method. Also using heat transfer simulation software, the temperature of the entire heat dissipation structure is simulated. Besides, when the flow speed of pump increases, better heat dissipation effect can be achieved. As to the entire LED aquarium light bracket structure, it is improved step by step by modified TRIZ clustering method. Finally, an innovative LED aquarium light bracket structure is obtained by the paper. The improvement of the entire LED aquarium light bracket structure undergone by the paper considers improvement in three major aspects, including the assembling way and structure of the reflective lid of LED aquarium light, and the light bracket body. The paper’s innovative assembling way of the reflective lid of LED aquarium light is different from that of screw-thread aquarium light generally used outside. It mainly uses a ring-shaped neck for assembling, making assembling very convenient and reducing the complicatedness of mold making. As to the improved reflective lid structure of LED aquarium light, the geometric shape inside its reflective lid is changed from conic to be semi-oval, improving the light source intensity in part of the zones and making the overall light source evener. Besides, as for the body of the innovative LED aquarium light bracket, its LED aquarium light can move in the innovative light bracket with grooves so as to make changes according to the various placing positions of different waterweeds, and achieve more efficient lighting. After searching other related patents and confirming that there is no possibility for the various components to have patent infringement, the components of heat dissipation structure of the related innovative LED aquarium light abovementioned by the paper are integrated and assembled to form a complete LED aquarium light with innovative structure. As shown from the research results of the paper, the priority procedures of the modified TRIZ clustering method can be applied to effectively help R&D personnel reduce the required R&D time.