1335400 099年07月22日桉正替換頁 六、發明說明： 【發明所屬之技術領域】^ * [0001] 本發明涉及一種發光二極體燈具，特別係指一種具有散 熱裝置之發光二極體燈具。 【先前技術】 [0002] 發光二極體作為一種高效之發光源，已經被越來越多地 應用在各個領域當中。但是，發光二極體工作時會產生 大量之熱量，該等熱量如若得不到及時之散發，容易使 發光二極體產生過熱現象，進而導致其發光效率下降。 [0003] 傳統之發光二極體燈具包括一板狀之散熱器及複數安裝 於散熱器一側之發光二極體。該等發光二極體均勻地排 列於複數直線上。當發光二極體被點亮時，其產生之熱 量經由散熱器散發至周圍之空氣當中。 [0004] 但是，由於發光二極體之發熱量較大，為了使其熱量能 夠被及時散發出去，散熱器之體積一般製造地比較龐大 以獲得一較大之散熱面積，從而導致該發光二極體燈具 ® 之運輸不甚便利；且，由於該等發光二極體位於散熱器 之同側，其所發出之光線只能籍由散熱器之該側向外輻 射而出，發光角度有限，不能同時照亮燈具之四周圍， 照明效果不佳》 【發明内容】 [0005] 有鑒於此，實有必要提供一種散熱效率較高且照明效果 較佳之發光二極體燈具。 [0006] 一種發光二極體燈具，包括一第一散熱器、一第二散熱 096133376 表單編號A0101 第3頁/共14頁 0993262830-0 1335400 099年07月22日修正替換頁 器、複數熱管、及圍繞第一散熱器外壁貼置之複數發光 二極體模組，所述第一散熱器開緣一貫穿之通口，所述 第二散熱器收容於第一散熱器之通口内且通過所述熱管 與第一散熱器連接，該第二散熱器包括一環形之導熱筒 及複數從導熱筒外壁朝向第一散熱器内壁延伸之鰭片， 該第一散熱器包括一中空之柱體，其具有複數供發光二 極體模組貼設之外壁面。 [0007] 與習知技術相比，本發明發光二極體燈具加設一第二散 熱器以輔助散熱，可在控制散熱器體積大小之同時獲得 φ 一較高之散熱效率；且由於發光二極體模組圍繞散熱器 外壁設置，可將光線向燈具四周輻射，達到一較佳之照 明效果。 【實施方式】 [0008] 如圖1所示，本發明之發光二極體燈具包括一第一散熱器 1.0、一設置於第一散熱器10内部之第二散熱器20、複數 連接第一散熱器10和第二散熱器20之熱管30、及圍繞第 一散熱器10設置之複數發光二極體模組40。 · [0009] 請參閱圖2，所述第一散熱器10和第二散熱器20均由熱導 性良好之金屬材料製成。該第一散熱器10包括一第一導 熱筒12。本發明之實施例中該第一導熱筒12為一中空之 正六稜柱體。所述第一導熱筒12具有六等大之矩形外壁 120，供發光二極體模組40貼置。該第一導熱筒12中部沿 第一散熱器10軸向開設一上下貫穿之圓形通口 14，進而 形成一圓筒形之内壁122。六平行之凹槽124均勻地開設 於所述内壁122上，其中每一凹槽122與相應外壁120之 096133376 表單編號A0101 第4頁/共14頁 0993262830-0 1335400 - 099年07月22日核正替換頁 中部相對設置，且沿第一散熱器10軸向延伸至第一導熱 筒12之上、下端口。'1335400 July 22, 2008, Yongzheng replacement page VI, invention description: [Technical field of invention] ^ * [0001] The present invention relates to a light-emitting diode lamp, in particular to a light-emitting diode having a heat sink Lighting. [Prior Art] [0002] As a highly efficient light source, light-emitting diodes have been increasingly used in various fields. However, when the light-emitting diode works, a large amount of heat is generated. If the heat is not released in time, it is easy to cause the light-emitting diode to overheat, which leads to a decrease in luminous efficiency. [0003] A conventional light-emitting diode lamp includes a plate-shaped heat sink and a plurality of light-emitting diodes mounted on one side of the heat sink. The light emitting diodes are evenly arranged on a plurality of straight lines. When the light-emitting diode is illuminated, the heat generated by it is dissipated through the heat sink to the surrounding air. [0004] However, since the heat generation of the light-emitting diode is large, in order to allow the heat to be dissipated in time, the volume of the heat sink is generally relatively large to obtain a large heat dissipation area, thereby causing the light-emitting diode. The transportation of the body lamp® is not very convenient; and since the light-emitting diodes are located on the same side of the heat sink, the light emitted by the light-emitting diodes can only be radiated outward from the side of the heat sink, and the illumination angle is limited, and cannot be At the same time, illuminating the periphery of the lamp, the lighting effect is not good. [Invention] [0005] In view of this, it is necessary to provide a light-emitting diode lamp with high heat dissipation efficiency and better illumination effect. [0006] A light-emitting diode lamp, comprising a first heat sink, a second heat sink 096133376 Form No. A0101 Page 3 / 14 pages 0993262830-0 1335400 Modified on July 22, 2008, the replacement page, the plurality of heat pipes, And a plurality of light emitting diode modules disposed around the outer wall of the first heat sink, the first heat sink opening is a through hole, and the second heat sink is received in the opening of the first heat sink and passes through the The heat pipe is connected to the first heat sink, and the second heat sink comprises an annular heat conducting tube and a plurality of fins extending from the outer wall of the heat conducting tube toward the inner wall of the first heat sink, the first heat sink comprising a hollow cylinder. The utility model has a plurality of light-emitting diode modules attached to the outer wall surface. Compared with the prior art, the light-emitting diode lamp of the present invention is provided with a second heat sink to assist heat dissipation, and can obtain a higher heat dissipation efficiency while controlling the volume of the heat sink; The pole body module is arranged around the outer wall of the radiator to radiate light to the periphery of the lamp to achieve a better illumination effect. [Embodiment] As shown in FIG. 1 , the LED lamp of the present invention includes a first heat sink 1.0, a second heat sink 20 disposed inside the first heat sink 10, and a plurality of first heat sinks. The heat pipe 30 of the device 10 and the second heat sink 20, and the plurality of light emitting diode modules 40 disposed around the first heat sink 10. [0009] Referring to FIG. 2, the first heat sink 10 and the second heat sink 20 are both made of a metal material having good thermal conductivity. The first heat sink 10 includes a first heat transfer cartridge 12. In the embodiment of the invention, the first heat conducting tube 12 is a hollow regular hexagonal prism. The first heat conducting tube 12 has a rectangular outer wall 120 of six equal dimensions for mounting the light emitting diode module 40. A circular through-port 14 is formed in the middle of the first heat conducting tube 12 along the axial direction of the first heat sink 10 to form a cylindrical inner wall 122. Six parallel grooves 124 are uniformly formed on the inner wall 122, wherein each groove 122 and the corresponding outer wall 120 are 096133376 Form No. A0101 Page 4 / Total 14 Page 0993262830-0 1335400 - July 22, 2008 The positive replacement page is disposed opposite to the middle portion and extends axially along the first heat sink 10 to the upper and lower ports of the first heat conduction tube 12. '
II
[0010] 請一併參閱圖3，所述第二散熱器20位於第一散熱器10之 通口 14内，其包括一第二導熱筒22及從第二導熱筒22外 壁（圖未標）向外延伸而出之複數鰭片24。本發明實施 例中該第二導熱筒22為一中空之圓筒，其與第一導熱筒 12同軸，且其高度與第一導熱筒12之高度相等。該第二 導熱筒22中部沿第二散熱器20軸向開設一上下貫穿之圓 ^ 形開口26,進而形成一圓筒形之内壁220。六平行之通槽 222均勻地開設於所述内壁220上，其中每一通槽222對 應於第一散熱器10之每一凹槽124，且沿第二散熱器20之 軸向延伸至第二導熱筒22之上、下端口，供熱管30嵌入 。所述鰭片24均呈矩形，其等間距地設置於第二導熱筒 22四周，進而形成複數供氣流通過之間隙（圖未標）。 每一鰭片24之高度小於第二導熱筒22之高度，其上邊緣 與第二導熱筒22之上端口齊平，其下邊緣未到達第二導 φ 熱筒22之下端口。所述鰭片24之自由末端與第一導熱筒 12之内壁122存在一定之間隙，以使第二散熱器20完全收 容於第一散熱器10内。與第一導熱筒12凹槽124相對之每 一鰭片24之自由末端切去一部分，使該每一鰭片24之長 度小於處於其他位置之鰭片24之長度。該等末端切去一 部分之鰭片24與第一導熱筒12之凹槽124共同形成複數空 間以收容熱管30，從而防止熱管30與鰭片24產生干涉。 依據長度不同，可將鰭片24分為兩類：第一類鰭片24b中 每一鰭片24b均較長，其自由末端至第二導熱筒22轴線之 096133376 表單編號A0101 第5頁/共14頁 0993262830-0 1335400 099年07月22日垵正替換頁 垂直距離小於第一導熱筒12之内徑；第二類縛片24a中每 一鰭片24a均較短’其自由末端至第二導熱筒22軸線之垂 直距離小於第一類鰭片24b中每一鰭片24b之自由末端至 第二導熱筒22軸線之垂直距離。 [0011] 所述熱管30連接第一導熱筒12之内壁122和第二導熱筒 22之内壁220而將熱量由第一散熱器10傳輸至第二散熱器 20。每一熱管30大致呈“门”形，其包括一冷凝段34、 一平行于冷凝段34之蒸發段32、及垂直連接冷凝段34和 蒸發段32之絕熱段36 »所述每一蒸發段32嵌入第一導熱 | 筒12之凹槽124内且與相對之第二類鰭片24b間隔設置； 所述每一冷凝段32嵌入於第二導熱筒22之通槽222内；相 應之絕熱段36則位於第二類鰭片24a之正上方。 [0012] 所述每一發光二極體模組40均包括一矩形之電路板44及 沿電路板44長度方向固定於電路板44同側之複數發光二 極禮42。三發光二極體模組40貼置於第一導熱筒12之每 —外壁120上。該三發光二極體模組40均平行於第一散熱 器10之軸線，且相互等間距之分佈於每一外壁120上，其 ί 中位於中間之一發光二極體模組40與第一導熱筒12之凹 槽124相互對應，另外兩侧之二發光二極體模組4〇則位於 該每一外壁12 0靠向兩側邊之位置。各侧面之發光二極體 模組40均此佈置’從而其所產生之熱量能均勻地散佈至 整個第一散熱器10。 [0013] 請參閱圖4，使用該發光二極體燈具時，發光二極體42通 電發光，其產生之熱量經由電路板44傳導至第一散熱器 10。由於加設了第二散熱器20，間接地增加了第一散熱 096133376 表單編號Α0101 第6頁/共14頁 〇叫, I.3354〇〇[0010] Please refer to FIG. 3 together, the second heat sink 20 is located in the through port 14 of the first heat sink 10, and includes a second heat conducting tube 22 and an outer wall of the second heat conducting tube 22 (not shown). A plurality of fins 24 extending outward. In the embodiment of the present invention, the second heat conducting tube 22 is a hollow cylinder coaxial with the first heat conducting tube 12 and having a height equal to the height of the first heat conducting tube 12. A circular opening 26 is formed in the middle of the second heat conducting tube 22 along the axial direction of the second heat sink 20 to form a cylindrical inner wall 220. The six parallel through slots 222 are evenly defined on the inner wall 220, wherein each of the through slots 222 corresponds to each of the recesses 124 of the first heat sink 10 and extends along the axial direction of the second heat sink 20 to the second heat conduction. The upper and lower ports of the cylinder 22 are embedded in the heat pipe 30. The fins 24 are all rectangular, and are disposed at equal intervals around the second heat-conducting cylinder 22 to form a plurality of gaps through which the airflow passes (not shown). The height of each fin 24 is smaller than the height of the second heat conducting tube 22, the upper edge of which is flush with the upper port of the second heat conducting tube 22, and the lower edge thereof does not reach the lower port of the second conductive tube 22. The free end of the fin 24 has a certain gap with the inner wall 122 of the first heat conducting tube 12, so that the second heat sink 20 is completely received in the first heat sink 10. A portion of the free end of each of the fins 24 opposite the recess 124 of the first thermally conductive tube 12 is cut away such that the length of each fin 24 is less than the length of the fins 24 at other locations. The fins 24 cut at the ends and the recesses 124 of the first heat conducting tube 12 form a plurality of spaces to accommodate the heat pipes 30, thereby preventing the heat pipes 30 from interfering with the fins 24. The fins 24 can be divided into two types according to the length: each fin 24b of the first type of fins 24b is long, and its free end is 096133376 to the axis of the second heat conducting tube 22. Form No. A0101 Page 5 / A total of 14 pages 0993262830-0 1335400 July 22, 2008, the replacement page vertical distance is smaller than the inner diameter of the first heat conduction tube 12; each of the fins 24a of the second type of fastening piece 24a is shorter 'the free end to the first The vertical distance of the axis of the two heat conducting tubes 22 is smaller than the vertical distance from the free end of each fin 24b of the first type of fins 24b to the axis of the second heat conducting tube 22. [0011] The heat pipe 30 connects the inner wall 122 of the first heat conduction tube 12 and the inner wall 220 of the second heat conduction tube 22 to transfer heat from the first heat sink 10 to the second heat sink 20. Each heat pipe 30 is generally "gate" shaped and includes a condensation section 34, an evaporation section 32 parallel to the condensation section 34, and an adiabatic section 36 that vertically connects the condensation section 34 and the evaporation section 32. 32 is embedded in the recess 124 of the first heat conduction | barrel 12 and spaced apart from the opposite second type of fins 24b; each of the condensation sections 32 is embedded in the through groove 222 of the second heat conduction tube 22; corresponding insulation section 36 is located directly above the second type of fin 24a. [0012] Each of the LED modules 40 includes a rectangular circuit board 44 and a plurality of LEDs 42 fixed to the same side of the circuit board 44 along the length of the circuit board 44. The three light emitting diode modules 40 are placed on each of the outer walls 120 of the first heat conducting tube 12. The three LED modules 40 are parallel to the axis of the first heat sink 10 and are equally spaced from each other on each of the outer walls 120, and are located in the middle of the light emitting diode module 40 and the first The grooves 124 of the heat-conducting tube 12 correspond to each other, and the two light-emitting diode modules 4 on both sides are located at the positions of the two sides of the outer wall 120. The light-emitting diode modules 40 of the respective sides are arranged so that the heat generated by them can be uniformly distributed to the entire first heat sink 10. Referring to FIG. 4, when the light emitting diode lamp is used, the light emitting diode 42 is electrically illuminated, and the generated heat is conducted to the first heat sink 10 via the circuit board 44. Due to the addition of the second heat sink 20, the first heat dissipation is indirectly increased. 096133376 Form No. Α0101 Page 6 of 14 Howling, I.3354〇〇
099年07月22日梭正替換頁I 器1〇與空氣之接觸面積’從而可在不增大第一散熱器1〇 雜積之基礎上，彳吏:第一散熱器10所吸收之熱量籍由第二 散熱器20迅速地散發出去，進而提高散熱效率。一部分 熱量經由第一散熱器10之外壁120向外輻射；另一部分熱 责經由第一散熱器10内壁122散發至第一散熱器1〇内部之 突氣中β第一散熱器1〇内部之空氣吸收熱量之後膨脹成 密度較小之熱空氣，其穿過第一散熱器1 〇之通口 14之上 部而離開第一散熱器1〇 ;由於熱空氣離開導致第一散熱 器1〇内部和外部間產生氣壓差，從而使位於第一散熱器 外部之空氣穿過通口 14下部進入第一散熱器10内；之 後這部分空氣吸收熱量再度轉變成熱空氣，從而持續地 實現空氟對流，不斷地移除發光二極體燈具之熱量《且 ，由於發光二極體模組40圍繞第一散熱器10外壁12〇設置 ，<將光線向燈具四周輻射，達到一較佳之照明效果。. Ί嫁上所述，本發明確已符合發明專利之要件，遂依法提 [0014J " 出專利申請。惟，以上所述者僅為本發明之較佳實施例 ，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化， 皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0015] 圖1係本發明實施例之立體組裝圖。 [0016] 圖2係圖1之立體分解圖。 [0017] 圖3係圖1之倒置圖。 [〇〇18] 圖4係圖1中散熱器之氣流走向圖。 096133376 表單編號Α0101 第7頁/共14頁 0993262830-0 1335400 [0019] 【主要元件符號說明】 第一散熱器：10 [0020] 第一導熱筒：12 [0021] 外壁：120 [0022] 内壁：122、220 [0023] 凹槽：124 [0024] 通口 ： 1 4 [0025] 第二散熱器：20 [0026] 第二導熱筒：22 [0027] 通槽：222 [0028] 鰭片：24、24a、 24b [0029] 開口 ： 26 [0030] 熱管：30 [0031] 蒸發段：32 [0032] 冷凝段：34 [0033] 絕熱段：36 [0034] 發光二極體模組： 40 [0035] 發光二極體：42 [0036] 電路板：44 096133376 表單編號A0101 第8頁/共14頁 099年07月22日修正替換頁 0993262830-0On July 22, 099, the shuttle is replacing the contact area of the device 1 with the air, so that the heat absorbed by the first heat sink 10 can be obtained without increasing the first heat sink. The second heat sink 20 is quickly dissipated, thereby improving heat dissipation efficiency. A part of the heat is radiated outward through the outer wall 120 of the first heat sink 10; another part of the heat is radiated to the air inside the first heat sink 1 inside the first heat sink 1 through the inner wall 122 of the first heat sink 10 After absorbing heat, it expands into a small density of hot air, which passes through the upper portion of the first radiator 1 and exits the first radiator 1; the first radiator 1 is inside and outside due to the hot air leaving A difference in air pressure is generated, so that air located outside the first radiator passes through the lower portion of the port 14 into the first radiator 10; after that, the portion of the air absorbs heat again into hot air, thereby continuously achieving air convection, continuously The heat of the illuminating diode lamp is removed. Moreover, since the illuminating diode module 40 is disposed around the outer wall 12 of the first heat sink 10, < illuminating the light around the illuminator to achieve a better illumination effect. As described above, the present invention has indeed met the requirements of the invention patent, and [0014J " patent application. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by those skilled in the art to the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0015] FIG. 1 is a perspective assembled view of an embodiment of the present invention. 2 is an exploded perspective view of FIG. 1. 3 is an inverted view of FIG. 1. [〇〇18] Figure 4 is a flow diagram of the airflow of the heat sink of Figure 1. 096133376 Form No. 1010101 Page 7 of 14 0993262830-0 1335400 [0019] [Main component symbol description] First heat sink: 10 [0020] First heat pipe: 12 [0021] Outer wall: 120 [0022] Inner wall: 122, 220 [0023] Groove: 124 [0024] Port: 1 4 [0025] Second Radiator: 20 [0026] Second Tube: 22 [0027] Channel: 222 [0028] Fin: 24 24a, 24b [0029] Opening: 26 [0030] Heat pipe: 30 [0031] Evaporation section: 32 [0032] Condensation section: 34 [0033] Insulation section: 36 [0034] Light-emitting diode module: 40 [0035 Light Emitting Diode: 42 [0036] Circuit Board: 44 096133376 Form No. A0101 Page 8 / Total 14 Pages 099 July 22 Revision Replacement Page 0993262830-0