1.331199六、發明說明： 【發明所屬之技術領域】 [〇〇〇1]本發明涉及一種發光二極體燈具，尤係一 構之發光二極體燈具。 [0002] 099年06月18日修正替换頁| 種具有散熱結1.331199 VI. Description of the invention: [Technical field to which the invention pertains] [〇〇〇1] The present invention relates to a light-emitting diode lamp, and in particular to a light-emitting diode lamp. [0002] Modified replacement page on June 18, 099 |
【先前技術】 發光二極體光源作為-種新興之第三代光源，雖然現在 還不能大規模取代傳統之自錢，惟，其具有工作壽命 長、節能、環保等優點，而普遍被市場所看好。而且， 目前由發光二極體組成之模組能產生大功率、高亮度之 光源，完全可以取代現有白熾燈實現室内外照明，亦將 廣泛地、革命性地取代傳統之白熾燈等現有之光源進 而成為符合節能環保主題之主要光源。[Prior Art] As a new generation of light source, the light-emitting diode light source can not replace the traditional self-finance on a large scale. However, it has the advantages of long working life, energy saving and environmental protection, and is generally marketed. I am optimistic. Moreover, the module composed of the light-emitting diode can generate a high-power, high-brightness light source, which can completely replace the existing incandescent lamp for indoor and outdoor illumination, and will also replace the existing light source such as the traditional incandescent lamp widely and revolutionarily. In turn, it becomes the main light source that meets the theme of energy conservation and environmental protection.
_3]然而，功率、亮度越大之發光二極體或其模組產生之熱 量越大，在體積有限之發光二極體燈具内累積難於及時 散發出去。故，發光二極體在照明上之應用尚存在較大 散熱技術瓶頸，此亦係目前大功率、高亮度發光二極體 燈具市％化最難突破之關鍵之處。目前業界通用之散熱 方案係在該燈具内設置一散熱器，通過該散熱器表面與 自然對流空氣接觸之方式將熱量散發到周圍空氣中。所 以要滿足高功率、高亮度之發光二極體燈散熱需求以使 其能正常工作防止光衰，一般岣需增大散熱面積。通常 由鋁擠、鑄模等方式形成之散熱器會體積大，同時使整 體燈具體積變大、變重而不適用。 【發明内容】 陶]有鑒於此，有必要提供-種具有散熱結構之發光二極體 096142343 表單編號A0101 第3頁/共16頁 0993213158-0 1331199 [0005] [0006] [0007] [0008] 096142343 099年06月18日修正替换頁 燈具，其可以通過較為容易之加工方式以有限體積獲得 較佳散熱性能。 一種具有散熱結構之發光二極體燈具，其包括一散熱器 、貼設在該散熱器頂部上之一發光二極體模組及將發光 二極體模組罩設其内之一燈罩，該散熱器呈圓柱狀，其 一端面上設有多數延伸至其周面之溝槽從而分割出多數 散熱鰭片，該下端面具有一長條形且兩侧邊平齊之無溝 槽區，該等溝槽分佈於該無溝槽區域兩側，該等溝槽頂 部表面相對散熱器中心轴線傾斜。 與習知技術相比，上述發光二極體燈具散熱器之傾斜溝 槽從端面向侧周面延伸而成，因而可以容易地採用刨削 加工製造，這種方式加工容易獲得較高且較寬之散熱鰭 片及其密集度，從而以緊湊之結構獲得較大之散熱面積 ，而保證具有良好之散熱性能。 【實施方式】 如圖1-2所示，本發明具有散熱結構之發光二極體燈具包 括一散熱器10、安裝有複數發光二極體元件22並貼設於 該散熱器10上端面之一發光二極體模組20、環繞該發光 二極體模組20之一導光罩30以及罩設在該發光二極體模 組20上之一燈罩40。 請一併參閱圖3至5，上述散熱器10由導熱性能良好之材 料如鋁、銅等金屬材料一體形成。該散熱器10大致呈圓 柱狀，其包括一導熱體12和從該導熱體12延伸而出之複 數散熱鰭片14。該導熱體12之上端面為圓形，其下端面 為穿過該散熱器10中心轴線之且兩側邊平齊之長條形無 表單編號A0101 第4頁/共16頁 0993213158-0 1331199 099年06月18日核正替换頁_3] However, the greater the power and brightness of the LEDs or their modules, the greater the heat generated by them, and the accumulation in a limited-volume LED lamp is difficult to dissipate in time. Therefore, the application of the light-emitting diode in illumination still has a large heat-dissipation technology bottleneck, which is also the key point of the current hard-to-break breakthrough of high-power, high-brightness light-emitting diode lamps. At present, the heat dissipation scheme commonly used in the industry is to provide a heat sink in the luminaire, and the heat is radiated into the surrounding air through the surface of the heat sink in contact with natural convection air. Therefore, it is necessary to meet the heat dissipation requirement of the high-power, high-brightness LED lamp so that it can work normally to prevent light decay, and it is generally unnecessary to increase the heat dissipation area. Generally, the heat sink formed by aluminum extrusion, molding, etc. will be bulky, and at the same time, the overall luminaire will become bulky and heavier and unsuitable. SUMMARY OF THE INVENTION In view of this, it is necessary to provide a light-emitting diode 096142343 having a heat dissipation structure. Form No. A0101 Page 3 / Total 16 Page 0993213158-0 1331199 [0005] [0006] [0007] 096142343 Modified the replacement page luminaire on June 18, 099, which can achieve better heat dissipation performance in a limited volume by a relatively easy processing method. A light-emitting diode lamp having a heat dissipation structure, comprising a heat sink, a light-emitting diode module attached to the top of the heat sink, and a light cover covering the light-emitting diode module The heat sink has a cylindrical shape, and one end surface of the heat sink has a plurality of grooves extending to the circumferential surface thereof to divide a plurality of heat dissipation fins, and the lower end surface has a long strip-shaped grooved area with both sides flush. Equal grooves are distributed on both sides of the grooveless region, and the top surfaces of the grooves are inclined with respect to the central axis of the heat sink. Compared with the prior art, the inclined groove of the above-mentioned light-emitting diode lamp radiator extends from the end surface to the side peripheral surface, and thus can be easily fabricated by planing, and the processing is easy to obtain higher and wider. The heat sink fins and their density make a large heat dissipation area in a compact structure, and ensure good heat dissipation performance. [Embodiment] As shown in FIG. 1-2, a light-emitting diode lamp having a heat dissipation structure of the present invention includes a heat sink 10, a plurality of light-emitting diode elements 22 mounted thereon, and one end surface of the heat sink 10 The light-emitting diode module 20 , a light guide cover 30 surrounding the light-emitting diode module 20 , and a light cover 40 disposed on the light-emitting diode module 20 . Referring to Figures 3 to 5 together, the heat sink 10 is integrally formed of a material having good thermal conductivity such as aluminum or copper. The heat sink 10 is substantially cylindrical and includes a heat conductor 12 and a plurality of heat sink fins 14 extending from the heat conductor 12. The upper end surface of the heat conductor 12 is circular, and the lower end surface thereof is a long strip that passes through the central axis of the heat sink 10 and is flush with both sides. No form number A0101 Page 4 / Total 16 pages 0993213158-0 1331199 Nuclear replacement page on June 18, 099
溝槽區域，且溝槽區域分佈於該條形區域兩側，故該導 熱體12可由圓形頂面朝底面向内對稱地凹陷而成。該導 熱體12沿該散熱器10之中心軸線形成有一截面為橢圓形 之穿孔120，該穿孔120之長軸線為該散熱器10之下端面 長條形區域之對稱線。該散熱器10之圓形頂面向下凹陷 形成有直徑較該頂面小之一圓形接觸部122，該接觸部 122大小與該發光二極體模組20對應，以容置並導熱接觸 該發光二極體模組20。該等散熱鰭片14係由從散熱器10 下端面延伸至其周面之溝槽分割而成，該等溝槽頂部表 面相對散熱器10中心軸線傾斜且為弧狀面，各溝槽與各 散熱鰭片14均相互平行。該等溝槽與散熱鰭片14關於散 熱器10之中心轴線及一通過散熱器10中心軸線之縱切面 對稱，且靠近中心軸線之溝槽較遠離中心軸線之溝槽深 〇 [0009] 上述發光二極體模組20呈包括一呈圓環形之電路板，其 大小正好容置在該散熱器10接觸部122内，該發光二極體 模組20中心開設一圓形透孔24，該等發光二極體元件22 關於該發光二極體模組20之圓心均勻對稱地安裝在該電 路板上。 [0010] 上述導光罩30大致呈一開口朝上之碗壁形狀，其底部中 間開設一通孔32，該通孔32周緣設置有圓環形之水平結 合緣34，當該導光罩30被放置在該散熱器10頂面上時， 該結合緣34大小正好緊密環繞在該散熱器10頂部之圓形 接觸部122周圍。該導光罩30之碗壁上通常會設置有反光 材料，以將散射到其上之光線按一定之需要反射到一定 096142343 表單編號A0101 第5頁/共16頁 0993213158-0 1331199 __ 099年06月18日修正替換頁 之方向上，從而形成用於照明之平行光或聚焦光。 [0011] 上述燈罩40為由透明材料一體形成之球形罩體，該燈罩 40底部開設有缺口（圖未示），該缺口周緣形成有水平 邊緣，該水平邊緣與該導光罩30之結合緣34連接以使該 燈罩40將位於該散熱器10頂部之發光二極體模組20罩於 其内。 [0012] 上述發光二極體燈具在組裝時，該發光二極體模組20貼 設於該散熱器10頂部之接觸部122内，安裝在該發光二極 體模組20上之發光二極體元件22與該接觸部122導熱接觸 | ，該導光罩30之結合緣34可通過鎖螺釘或粘貼等方式貼 設在該散熱器10頂部上並緊密環繞在該散熱器10頂部之 接觸部122周圍，該燈罩40罩設在該發光二極體模組20上 且該燈罩40之水平邊緣可通過粘貼等方式與該導光罩30 結合緣34接合固定。 [0013] 上述發光二極體燈具在使用時，該發光二極體元件22產 生光透過該燈罩40及經該導光罩30反射而照射到周圍環 ύ 境中去而起到照明之作用。同時，該發光二極體元件22 工作時產生之熱量通過該散熱器10頂部之接觸部122傳遞 給該散熱器10之導熱體12，再經該導熱體12均勻分佈到 各散熱鰭片14上，最後通過該等散熱鰭片14將熱量散發 到周圍空氣中，從而冷卻該發光二極體元件22。此外， 該散熱器10導熱體12内之穿孔120與該燈罩40内之空間 連通，以便該燈罩40内之高溫空氣逃逸到周圍環境中去 ，從而有利於散發該發光二極體元件22之熱量。 096142343 表單編號Α0101 第6頁/共16頁 0993213158-0 099年06月18日核正替換頁 1331199 [0014] 上述散熱器10可通過在一圓形柱體周緣直接用刀具刨出 傾斜之溝槽，而形成散熱鰭片14，具有加工方便、結構 簡潔緊湊及能有效地增大其散熱面積等優點，且在該柱 - 體中心設有中空之導熱體12，能將熱量均勻分佈到散熱 鰭片14上及通過該導熱體12穿孔120更好地與周圍環境連 通。 [0015] 綜上所述，本發明符合發明專利要件，爰依法提出專利 申請。惟，以上所述者僅為本發明之較佳實施例，舉凡 熟悉本案技藝之人士，在爰依本發明精神所作之等效修 飾或變化，皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 [0016] 圖1係本發明具有散熱結構之發光二極體燈具之一優選實 施例之立體組合圖。 [0017] 圖2係圖1中具有散熱結構之發光二極體燈具之立體分解 圖。 [0018] 圖3係圖2中沿剖線II I-Ι II之剖視圖。 [0019] 圖4係圖2中散熱器之側視圖。 [0020] 圖5係圖2中散熱器之仰視圖。 【主要元件符號說明】 [0021] 散熱器：10 [0022] 穿孔：120 [0023] 散熱鰭片：14 [0024] 發光二極體元件：22 096142343 表單編號A0101 第7頁/共16頁 0993213158-0 1331199 _ 099年06月18日按正替換頁 [0025] 導光罩：30 [0026] 結合緣：34 [0027] 導熱體：12 .The groove region and the groove region are distributed on both sides of the strip region, so that the heat conductor 12 can be concavely recessed from the circular top surface toward the bottom surface. The heat guide body 12 is formed with a hole 120 having an elliptical cross section along a central axis of the heat sink 10. The long axis of the hole 120 is a line of symmetry of the long strip-shaped area of the lower end surface of the heat sink 10. The circular top surface of the heat sink 10 is recessed downwardly to form a circular contact portion 122 having a smaller diameter than the top surface. The contact portion 122 is sized to correspond to the LED module 20 for accommodating and thermally contacting the Light-emitting diode module 20. The heat dissipating fins 14 are divided by grooves extending from the lower end surface of the heat sink 10 to the circumferential surface thereof, and the top surfaces of the grooves are inclined with respect to the central axis of the heat sink 10 and are arcuate surfaces, and each groove and each The heat sink fins 14 are all parallel to each other. The grooves are symmetrical with the heat sink fin 14 about the central axis of the heat sink 10 and a longitudinal section through the central axis of the heat sink 10, and the groove near the central axis is deeper than the groove of the central axis [0009] The LED module 20 includes a circular circuit board that is sized to be received in the contact portion 122 of the heat sink 10. The circular LED module 20 defines a circular through hole 24 in the center. The light-emitting diode elements 22 are mounted on the circuit board in a uniform symmetrical manner with respect to the center of the light-emitting diode module 20. [0010] The light guide cover 30 is substantially in the shape of a bowl wall with an opening facing upward, and a through hole 32 is defined in the middle of the bottom portion. The through hole 32 is provided with a circular horizontal joint edge 34 at the periphery thereof, when the light guide cover 30 is When placed on the top surface of the heat sink 10, the bond edge 34 is sized just around the circular contact portion 122 at the top of the heat sink 10. The reflector wall of the light guide cover 30 is usually provided with a reflective material to reflect the light scattered thereon to a certain amount of 096142343. Form No. A0101 Page 5 of 16 0993213158-0 1331199 __ 099 06 The direction of the replacement page is corrected on the 18th of the month to form parallel or focused light for illumination. [0011] The lamp cover 40 is a spherical cover integrally formed of a transparent material. The bottom of the lamp cover 40 is provided with a notch (not shown). The periphery of the notch is formed with a horizontal edge, and the horizontal edge is combined with the light guide cover 30. 34 is connected such that the light cover 40 covers the light emitting diode module 20 at the top of the heat sink 10. [0012] When the LED device is assembled, the LED module 20 is attached to the contact portion 122 at the top of the heat sink 10, and the LED is mounted on the LED module 20. The body member 22 is in thermal contact with the contact portion 122. The bonding edge 34 of the light guide cover 30 can be attached to the top of the heat sink 10 by a locking screw or a paste or the like and closely surrounds the contact portion at the top of the heat sink 10. Around the 122, the lamp cover 40 is disposed on the LED module 20, and the horizontal edge of the lamp cover 40 can be bonded and fixed to the light guide cover 30 by the bonding edge. [0013] When the light-emitting diode device is in use, the light-emitting diode element 22 generates light through the lamp cover 40 and is reflected by the light guide cover 30 to be irradiated into the surrounding environment to function as illumination. At the same time, the heat generated by the operation of the LED component 22 is transmitted to the heat conductor 12 of the heat sink 10 through the contact portion 122 at the top of the heat sink 10, and is evenly distributed to the heat dissipation fins 14 via the heat conductor 12. Finally, the heat radiating fins 14 are used to dissipate heat into the surrounding air, thereby cooling the light emitting diode element 22. In addition, the through hole 120 in the heat conductor 12 of the heat sink 10 communicates with the space in the lamp cover 40, so that the high temperature air in the lamp cover 40 escapes to the surrounding environment, thereby facilitating the heat dissipation of the light emitting diode element 22. . 096142343 Form No. Α0101 Page 6 / Total 16 Page 0993213158-0 June 18, 1999, Nuclear Replacement Page 1331199 [0014] The heat sink 10 described above can be used to directly slant the groove by a tool on the periphery of a circular cylinder. The heat dissipating fins 14 are formed, which have the advantages of convenient processing, simple and compact structure, and can effectively increase the heat dissipating area thereof, and a hollow heat conductor 12 is disposed at the center of the column body to uniformly distribute heat to the heat dissipating fins. The perforations 120 on the sheet 14 and through the heat conductor 12 are better in communication with the surrounding environment. [0015] In summary, the present invention complies with the requirements of the invention patent, and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art of the present invention should be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0016] FIG. 1 is a perspective assembled view of a preferred embodiment of a light-emitting diode lamp having a heat dissipation structure of the present invention. 2 is an exploded perspective view of the light-emitting diode lamp having the heat dissipation structure of FIG. 1. 3 is a cross-sectional view taken along line II I-Ι II of FIG. 2. 4 is a side view of the heat sink of FIG. 2. [0020] FIG. 5 is a bottom view of the heat sink of FIG. 2. [Main component symbol description] [0021] Heat sink: 10 [0022] Perforation: 120 [0023] Heat sink fin: 14 [0024] Light-emitting diode component: 22 096142343 Form number A0101 Page 7 / Total 16 page 0993213158- 0 1331199 _ June 18, 2017, press the replacement page [0025] Light guide: 30 [0026] Bonding edge: 34 [0027] Thermal conductor: 12 .
[0028] 接觸部：122 [0029] 發光二極體模組：20 [0030] 透孔：24 [0031] 通孔：32 [0032] 燈罩：40 0993213158-0 096142343 表單編號A0101 第8頁/共16頁[0028] Contact portion: 122 [0029] LED module: 20 [0030] Through hole: 24 [0031] Through hole: 32 [0032] Lamp cover: 40 0993213158-0 096142343 Form number A0101 Page 8 / total 16 pages