.1288806 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種發光二極體燈具，且特別是有關 於一種液體冷卻之發光二極體燈具。 【先前技術】 發光一極體由於具有體積小'效率高、省電等優點， 因此逐漸取代耗電量大、使用壽命短的鎢絲燈及具有污染 • 性的水銀燈管，成為新一代的發光與照明設備。目前，發 光二極體已被大量應用於交通號誌燈、汽車車燈、廣告看 板及投射燈等產品上。 早期的發光二極體燈具由於其發光二極體的功率較 低，因此常有亮度不足的問題。目前，隨著磊晶技術的提 升，單顆發光二極體的功率已經從丨瓦提升至3瓦甚至5 瓦。然而，高功率發光二極體於發光的同時，亦產生較高 的熱量，因此，發光二極體燈具必須具有良好的散熱設計， 鲁 以避免南溫影響其使用壽命。 第1圖是習知發光二極體燈具的立體結構圖。參照第i ’發光二極體燈具10包含-固定座1卜複數個發光二極 體13及-燈杯15 ’其中燈杯15具有多數個散熱鰭片17, ^ 用以使發光二極體13所產生的熱量透過此些散熱鑛片17 散發至外界環境中，進而降低發光二極體13的溫度。然而， 此發光二極體燈具H)由於具有散熱_片17,因此其體積較 大。另外，當發光二極體13的功率較大，僅透過散熱鰭片 5 .1288806 17與空氣進行熱交換的散熱方式較難有效的降低發光二極 體1 3的溫度。 另外’美國專利公開號碼US2004/0264192揭示一種以 液體冷卻發光二極體的燈具，其發光二極體晶片直接與液 體接觸’雖㉟具有較佳的散熱效果，然而其製造較為困難。 【發明内容】 因此本發明的目的就是在提供一種發光二極體燈具， 其利用液體冷卻，而具有較佳的散熱效果，藉以提高此發 光二極體燈具的使用壽命。 本發明的另一目的是在提供一種發光二極體燈具，其 利用液體冷卻，且其發光二極體並未與液體直接接觸，而 具有體積小且製造容易的優點。 根據本發明之上述目的，提出一種發光二極體燈具， 具有一容置空間，此發光二極體燈具包含：一固定座、至 少一發光二極體以及一液體。其中發光二極體設置於固定 座之上，液體設置於容置空間内。並且液體並未與發光二 極體接觸，而發光二極體產生之熱能是經由固定座傳導至 液體。 根據本發明一較佳實施例所述之發光二極體燈具，其 更包含一燈杯，此燈杯設置於固定座之上，且燈杯具有上 述容置空間，而液體設置於容置空間内，並且液體並未與 發光二極體接觸，而發光二極體產生之熱能是經由固定座 傳導至液體。 6 1288806 根據本發明一較佳實施例所述之發光二極體燈具，其 更包含一導熱板，此導熱板設置於容置空間内，其由複數 個微粒組合而成，此些微粒之間形成複數個孔隙。 根據本發明一較佳實施例所述之發光二極體燈具，其 中燈杯包含一第一殼體以及一第二殼體，第二殼體疊設於 第一殼體，第二殼體與第一殼體之間形成上述容置空間。 本發明之一種發光二極體燈具由於是利用液體進行散 熱'因此對於發光二極體具有較佳的散熱效果。此外，其 更包含一導熱板，用以進一步加強其散熱效果。 本發明之一種發光二極體燈具因為不具有散熱鰭片， 因此具有體積小的優點。此外，其構造簡單，並且具有組 裝、拆卸容易的優點。 【實施方式】 參照第2圖，其繪示依照本發明一較佳實施例之發光 二極體燈具結構剖面圖。此發光二極體燈具20包含：一固 定座21、至少一發光二極體13以及一液體23。其中發光 二極體13設置於固定座21之上，而金屬導線25穿過固定 座21連接至發光二極體13，用以使發光二極體13受控並 通電發光。具體而言，發光二極體13可採用白光發光二極 體，其亦可採用紅光發光二極體、綠光發光二極體及藍光 發光二極體，並且透過混光的方式，使發光二極體燈具20 發出不同顏色的光線。於一較佳實施例中，固定座21可採 用銅、鋁或陶瓷等導熱性良好的材質，並且形成一容置空 7 1288806 間27 〇 繼續參照第2圖，液體23設置於容置空間27内，於 一較佳實施例中，此液體23可採用水或油。較佳為使用高 沸點的液體，例如沸點高於120°C的油。值得注意的是，液 體23並未與發光二極體13接觸，而發光二極體13產生之 熱能是經由固定座21傳導至液體23。於一較佳實施例中， 容置空間27内更設置有一導熱板29，此導熱板29是由複 數個微粒組合而成。具體而言，可使用奈米技術製造複數 個微小的金屬顆粒，再將此些金屬顆粒壓鑄成此導熱板 29，由於此些金屬顆粒之間形成複數個孔隙，使液體23可 以進入此些孔隙，如此，可大幅增加導熱板29與液體23 的熱交換面積，使發光二極體13所產生的熱能得以更快速 且均勻的散佈在液體23中。 一般發光二極體13之發光面的長寬分別約為imm，由 於發光面的面積小，因此散熱面積亦小，本發明藉由固定 座21及其容置空間27内之液體23及導熱板29,使發光二 極體13的散熱面積大幅增加，進而降低發光二極體13的 溫度，提高發光二極體燈具20的使用壽命。 參照第3圖，其繪示依照本發明另一較佳實施例之發 光二極體燈具結構剖面圖。此發光二極體燈具3〇包含：一 固定座31、至少一發光二極體13、一燈杯33以及一液體 23。其中發光二極體13設置於固定座31之上，而金屬導 線25穿過固定座31連接至發光二極體13,使發光二極體 13受控並通電發光。具體而言，發光二極體13可採用白光 1288806 發光二極體，其亦可採用紅光發光二極體、綠光發光二極 體及藍光發光二極體，並且透過混光的方式，使發光二極 體燈具30發出不同顏色的光線。於一較佳實施例中，固定 座31可採用銅、紹或陶瓷等導熱性良好的材質。 燈杯33設置於固定座31之上·，其可採用銅、鋁或陶 瓷等導熱性良好的材質。於一較佳實施例中，燈杯33包含 一第一殼體35以及一第二殼體37，第二殼體37疊設於第 一殼體35，並且第二殼體37與第一殼體35之間形成一容 置空間39。第二殼體37具有一液體注入孔41，液體23經 由液體注入孔41注入於容置空間39内，之後，封閉液體 注入孔41，使液體23設置於容置空間39内。於一較佳實 施例中，此液體23可採用水或油。較佳為使用高沸點的液 體23，例如沸點高於120 C的油。值得注意的是，液體23 並未與發光二極體13接觸，而發光二極體13產生之熱能 是經由固定座3 1傳導至液體23。 於一較佳實施例中，第二殼體37具有一折彎部43，此 折彎部43與第一殼體35緊密貼合，用以避免容置空間外 内之液體23由第二殼體37與第一殼體35的接合處滲漏。 另外，於一較佳實施例中，一第一 〇型環45設置於固定座 31與第一殼體35之間，一第二〇型環47設置於固定座μ 與第二殼體37之間，此第一 〇型環45與第二〇型環们 用以避免液體23從容置空間39汽漏。 第-殼體35與第二殼體37可以利用焊接、黏接 式固定於燈杯33上。於-較佳實施例中，發光二極體燈具 1288806 30更包含一固定件49，此固定件49例如是一螺帽，其與 固定座31上之螺紋（圖中未示）相配合，其上更設置有一墊 片51。當固定件49向上旋緊，第二殼體37與第一殼體35 可以更緊密地貼合，使液體23不致於從容置空間39洩漏。 利用此固定件49，使本發明具有容易組裝與分解的優點。 於一較佳實施例中，容置空間39内更設置有一導熱板 29 ’此導熱板29是由複數個微粒組合而成。微粒之間形成 複數個孔隙’使液體23可以進入此些孔隙，如此，可大幅 增加導熱板29與液體23的熱交換面積，使發光二極體π 所產生的熱能得以更快速且均勻的散佈在液體23中。 由上述本發明較佳實施例可知，應用本發明具有下列 優點。 一、 本發明利用液體進行散熱，因此對於發光二極體 具有較佳的散熱效果。此外，其更包含一具有孔隙之導熱 板，更增加了本發明之散熱效果。 二、 本發明利用液體進行散熱，不具有散熱鰭片，因 此具有體積小的優點。此外，其構造簡單，並且具有組裝、 拆卸容易的優點。 雖然本發明已以一較佳實施例揭露如上，然其並非用 以限定本發明，任何熟習此技藝者，在不脫離本發明之精 神和範圍内，當可作各種之更動與潤飾，因此本發明之保 護範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 10 • 1288806 為讓本發明之上述和其他目的、特徵、優點與實施例 能更明顯易懂，所附圖式之詳細說明如下： 第1圖是習知發光二極體燈具的立體結構圖。 第2圖是本發明一較佳實施例之發光二極體燈具結構 剖面圖。 第3圖是本發明另一較佳實施例之發光二極體燈具結.1288806 IX. Description of the Invention: [Technical Field] The present invention relates to a light-emitting diode lamp, and more particularly to a liquid-cooled light-emitting diode lamp. [Prior Art] Because of its small size, high efficiency and power saving, the light-emitting diode has gradually replaced the tungsten lamp with high power consumption and short service life, and the mercury lamp with pollution and pollution, becoming a new generation of light. With lighting equipment. At present, the light-emitting diode has been widely used in traffic lights, car lights, advertising billboards and projection lamps. Early LED luminaires often had insufficient brightness due to their low power. At present, with the advancement of epitaxial technology, the power of a single light-emitting diode has been increased from a silicon tile to 3 watts or even 5 watts. However, the high-power light-emitting diodes also generate high heat while emitting light. Therefore, the light-emitting diode lamps must have a good heat-dissipation design, so as to avoid the influence of the south temperature on the service life. Fig. 1 is a perspective structural view of a conventional light-emitting diode lamp. Referring to the i'th light-emitting diode lamp 10, there is provided a fixing base 1 and a plurality of light-emitting diodes 13 and a lamp cup 15', wherein the lamp cup 15 has a plurality of heat-dissipating fins 17, ^ for the light-emitting diode 13 The generated heat is radiated to the external environment through the heat-dissipating pellets 17, thereby lowering the temperature of the light-emitting diodes 13. However, this light-emitting diode lamp H) has a large volume because it has a heat-dissipating sheet 17. In addition, when the power of the light-emitting diode 13 is large, it is difficult to effectively reduce the temperature of the light-emitting diode 13 by heat-dissipating only through the heat-dissipating fins 5.11888016. Further, U.S. Patent Publication No. US 2004/0264192 discloses a lamp in which a light-emitting diode is cooled by liquid, and the light-emitting diode wafer is directly in contact with the liquid. Although 35 has a preferable heat-dissipating effect, it is difficult to manufacture. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a light-emitting diode lamp that utilizes liquid cooling to provide a better heat dissipation effect, thereby improving the service life of the light-emitting diode lamp. Another object of the present invention is to provide a light-emitting diode lamp which is cooled by liquid and whose light-emitting diode is not in direct contact with a liquid, and which has the advantages of small size and easy manufacture. According to the above object of the present invention, a light-emitting diode lamp has an accommodating space, and the light-emitting diode lamp comprises: a fixing seat, at least one light-emitting diode, and a liquid. The light emitting diode is disposed on the fixing seat, and the liquid is disposed in the accommodating space. And the liquid is not in contact with the light-emitting diode, and the heat generated by the light-emitting diode is conducted to the liquid via the fixed seat. According to a preferred embodiment of the present invention, a light-emitting diode lamp further includes a light cup, the light cup is disposed on the fixed seat, and the light cup has the above-mentioned accommodating space, and the liquid is disposed in the accommodating space. Internally, and the liquid is not in contact with the light-emitting diode, and the heat energy generated by the light-emitting diode is conducted to the liquid via the fixed seat. The light-emitting diode lamp according to a preferred embodiment of the present invention further includes a heat-conducting plate disposed in the accommodating space, which is composed of a plurality of particles, and between the particles A plurality of pores are formed. According to a preferred embodiment of the present invention, a light-emitting diode lamp includes a first housing and a second housing, the second housing is stacked on the first housing, and the second housing is The above accommodating space is formed between the first housings. A light-emitting diode lamp of the present invention has a better heat dissipation effect on the light-emitting diode because it uses a liquid to dissipate heat. In addition, it also includes a heat conducting plate to further enhance its heat dissipation. A light-emitting diode lamp of the present invention has the advantage of being small in size because it does not have heat-dissipating fins. In addition, it has a simple structure and has the advantages of easy assembly and disassembly. [Embodiment] Referring to Figure 2, there is shown a cross-sectional view of a structure of a light-emitting diode lamp in accordance with a preferred embodiment of the present invention. The light-emitting diode lamp 20 includes a fixing base 21, at least one light-emitting diode 13 and a liquid 23. The light-emitting diode 13 is disposed on the fixing base 21, and the metal wire 25 is connected to the light-emitting diode 13 through the fixing base 21 for controlling and emitting light to the light-emitting diode 13. Specifically, the light-emitting diode 13 can be a white light-emitting diode, which can also adopt a red light-emitting diode, a green light-emitting diode, and a blue light-emitting diode, and emit light by means of light mixing. The diode lamp 20 emits light of different colors. In a preferred embodiment, the fixing base 21 can be made of a material having good thermal conductivity such as copper, aluminum or ceramic, and a space of 7 1288806 is formed. 27 Continuing to refer to FIG. 2, the liquid 23 is disposed in the accommodating space 27 In a preferred embodiment, the liquid 23 can be water or oil. It is preferred to use a liquid having a high boiling point such as an oil having a boiling point higher than 120 °C. It is to be noted that the liquid 23 is not in contact with the light-emitting diode 13, and the heat generated by the light-emitting diode 13 is conducted to the liquid 23 via the holder 21. In a preferred embodiment, a heat conducting plate 29 is further disposed in the accommodating space 27, and the heat conducting plate 29 is formed by combining a plurality of particles. Specifically, a plurality of minute metal particles can be fabricated using a nanotechnology, and the metal particles are die-cast into the heat conducting plate 29, and a plurality of pores are formed between the metal particles to allow the liquid 23 to enter the pores. Thus, the heat exchange area of the heat conducting plate 29 and the liquid 23 can be greatly increased, so that the heat energy generated by the light emitting diode 13 can be more quickly and uniformly dispersed in the liquid 23. Generally, the length and width of the light-emitting surface of the light-emitting diode 13 are about imm, and since the area of the light-emitting surface is small, the heat-dissipating area is also small. The liquid 23 and the heat-conducting plate in the fixing seat 21 and the accommodating space 27 thereof are provided by the present invention. 29. The heat dissipation area of the light-emitting diode 13 is greatly increased, thereby lowering the temperature of the light-emitting diode 13 and improving the service life of the light-emitting diode lamp 20. Referring to Figure 3, there is shown a cross-sectional view of a light-emitting diode lamp according to another preferred embodiment of the present invention. The light-emitting diode lamp 3A includes: a fixing base 31, at least one light-emitting diode 13, a light cup 33, and a liquid 23. The light-emitting diode 13 is disposed on the fixing base 31, and the metal wire 25 is connected to the light-emitting diode 13 through the fixing base 31, so that the light-emitting diode 13 is controlled and energized to emit light. Specifically, the light-emitting diode 13 can be a white light 1288806 light-emitting diode, which can also adopt a red light-emitting diode, a green light-emitting diode, and a blue light-emitting diode, and can be mixed by light. The light-emitting diode lamp 30 emits light of different colors. In a preferred embodiment, the fixing base 31 may be made of a material having good thermal conductivity such as copper, sinter or ceramic. The lamp cup 33 is provided on the fixing base 31. It can be made of a material having good thermal conductivity such as copper, aluminum or ceramic. In a preferred embodiment, the lamp cup 33 includes a first housing 35 and a second housing 37. The second housing 37 is stacked on the first housing 35, and the second housing 37 and the first housing An accommodation space 39 is formed between the bodies 35. The second casing 37 has a liquid injection hole 41 through which the liquid 23 is injected into the accommodating space 39. Thereafter, the liquid injection hole 41 is closed, and the liquid 23 is placed in the accommodating space 39. In a preferred embodiment, the liquid 23 can be water or oil. It is preferred to use a high boiling point liquid 23 such as an oil having a boiling point higher than 120 C. It is to be noted that the liquid 23 is not in contact with the light-emitting diode 13, and the heat generated by the light-emitting diode 13 is conducted to the liquid 23 via the holder 31. In a preferred embodiment, the second housing 37 has a bent portion 43 that closely fits the first housing 35 to prevent the liquid 23 in the outer space from being accommodated by the second housing. The joint of the body 37 and the first housing 35 leaks. In addition, in a preferred embodiment, a first 〇-shaped ring 45 is disposed between the fixed seat 31 and the first housing 35, and a second 〇-shaped ring 47 is disposed between the fixed seat μ and the second housing 37. The first 〇-shaped ring 45 and the second 〇-shaped ring are used to prevent the liquid 23 from leaking from the accommodating space 39. The first housing 35 and the second housing 37 may be fixed to the lamp cup 33 by welding or adhesive bonding. In a preferred embodiment, the LED illuminator 1288806 30 further includes a fixing member 49, such as a nut, which cooperates with a thread (not shown) on the fixing base 31. A spacer 51 is further disposed on the upper side. When the fixing member 49 is screwed upward, the second housing 37 and the first housing 35 can be more closely fitted, so that the liquid 23 does not leak from the accommodating space 39. With this fixing member 49, the present invention has an advantage of easy assembly and disassembly. In a preferred embodiment, a heat conducting plate 29' is disposed in the accommodating space 39. The heat conducting plate 29 is formed by combining a plurality of particles. A plurality of pores are formed between the particles to allow the liquid 23 to enter the pores, so that the heat exchange area of the heat conducting plate 29 and the liquid 23 can be greatly increased, so that the heat energy generated by the light emitting diode π can be more quickly and uniformly dispersed. In the liquid 23. It will be apparent from the above-described preferred embodiments of the present invention that the application of the present invention has the following advantages. 1. The present invention utilizes a liquid for heat dissipation, and thus has a better heat dissipation effect for the light emitting diode. In addition, it further comprises a heat conducting plate with pores, which further increases the heat dissipation effect of the present invention. 2. The present invention utilizes a liquid for heat dissipation without having fins, and thus has the advantage of being small in size. In addition, it has a simple structure and has the advantage of easy assembly and disassembly. Although the present invention has been described above in terms of a preferred embodiment, it is not intended to limit the invention, and it is obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The three-dimensional structure of the luminaire. Fig. 2 is a cross-sectional view showing the structure of a light-emitting diode lamp according to a preferred embodiment of the present invention. Figure 3 is a diagram of a light emitting diode lamp junction according to another preferred embodiment of the present invention.
構剖面圖。 【主要元件符號說明】 10:發光二極體燈具 31:固定座 11:固定座 33:燈杯 13.·發光二極體 35:第一殼體 15:燈杯 37··第二殼體 17:散熱鰭片 39:容置空間 20:發光二極體燈具 41:液體注入孔 21:固定座 43:折彎部 23:液體 45:第一 0型環 25:金屬導線 47:第二0型環 27:容置空間 49:固定件 29·.導熱板 30:發光二極體燈具 51:墊片 11Profile view. [Main component symbol description] 10: Light-emitting diode lamp 31: Fixing seat 11: Fixing seat 33: Light cup 13. Light-emitting diode 35: First housing 15: Light cup 37··Second housing 17 : heat sink fin 39: accommodating space 20: light-emitting diode lamp 41: liquid injection hole 21: fixing seat 43: bent portion 23: liquid 45: first 0-ring 25: metal wire 47: second type 0 Ring 27: accommodating space 49: fixing member 29·. heat conducting plate 30: light emitting diode lamp 51: spacer 11