TW200921001A - LED lamp having heat dissipation structure - Google Patents

LED lamp having heat dissipation structure Download PDF

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Publication number
TW200921001A
TW200921001A TW96142343A TW96142343A TW200921001A TW 200921001 A TW200921001 A TW 200921001A TW 96142343 A TW96142343 A TW 96142343A TW 96142343 A TW96142343 A TW 96142343A TW 200921001 A TW200921001 A TW 200921001A
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TW
Taiwan
Prior art keywords
heat
light
emitting diode
heat sink
heat dissipation
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Application number
TW96142343A
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Chinese (zh)
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TWI331199B (en
Inventor
Chun-Jiang Shuai
Guang Yu
Cheng-Tien Lai
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Foxconn Tech Co Ltd
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Priority to TW96142343A priority Critical patent/TWI331199B/en
Publication of TW200921001A publication Critical patent/TW200921001A/en
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Publication of TWI331199B publication Critical patent/TWI331199B/en

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Abstract

An LED lamp having heat dissipation structure includes a heat sink, a plurality of LEDs attached to a top of the heat sink and a cover enclosing the LEDs therein. The heat sink is column-shaped and defines a plurality of slots therein. The slots extend from a bottom surface of the heat sink to a circumference of heat sink and a plurality of fins separated by the slots. A bottom surface of each of the slots is oblique to a central axis of the heat sink.

Description

200921001 九、發明說明: 【發明所屬之技術領域】 本發明涉及一種發光二極體燈具,尤係一種具有散熱 結構之發光二極體燈具。 〜 【先前技術】 π發光二極體光源作為一種新興之第三代光源,雖然現 在還不能大規模取代傳統之白熾燈,惟,其呈 長、節能、環保等優點,而普遍被市場所看二 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 符合節能環保主題之主要光源。 … 然而’功帛、亮度越大之發光二極體或其模組產生之 2越大,在體積有限之發光二極體燈具内累積難於及時 月X出去。故’發光二極體在照明上之應用尚 =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。 a ㈣之處目别業界通用之散熱方案係 :是、内設置一散熱器’通過該散熱器表面與自缺對流 二=方式將熱量散發到周圍空氣中。所以要滿足高 '、:冗度之發光二極體燈散熱需求以使其能正常工作 方切^ 散熱面積。通常由崎、鑄模等 變會體積大,料使整體燈具體積變大、 200921001 【發明内容】 有#於此’有必要提供一錄 體燈具,其可以通過較=易:具,熱結構之發光二極 較佳散熱性能。_有限體積獲得 種具有散熱結構之發光二極體燈具,其包括熱 器、貼設在該散熱器頂部上一 … 一 ^ ώ ^ 疋毛先—極體模組及將發光 了肢莫組罩設其内之—燈罩,該散熱器呈圓柱狀,盆一 =上设:多數延伸至其周面之溝槽從而分割出多數散埶 ...、曰片,該專溝槽底部表面相對散熱器中心軸線傾斜。… 、莫样術相比’上述發光二極體燈具散熱器之傾斜 面::周面延伸而成’因而可以容易地採糊 及Α:二' 方式加工容易獲得較高且較寬之散熱鰭片 及,、始本度’從而以緊凑之έ士禮痛 佯-且古j 構獲侍車父大之散熱面積,而 保3丘具有良好之散熱性能。 【實施方式】 ^所示本發明具有散熱結構之發光二極體燈呈 ==器上Μ/安裝有複數發光二極體元件22並貼設; …… 上端面之一發光二極體模組 極體模組20之一導光罩3〇以芬衣'凡该么先一 2〇上之一燈罩4〇。先軍心及“在該發光二極體模組 月併參閱圖3至5,上述散熱器1〇由導 之材料如紹、銅等全屬㈣㈣U好 圓㈣成。該散熱器10大致呈 .乂 -包括—導熱體12和從該導熱體12延伸而出之 複數散熱鱗片14。該導熱體12之上端面為圓形,其= 200921001 =該散熱器10中心軸線之且兩側邊平齊之長條 槽區域,且溝槽區域分佈於該條 ’、-4 12可由圓形頂面朝底面向内對 …、體 1Π ^ Τ聃地凹而成。該導熱體12 軸線形成有—截㈣則形之穿孔 「1’該穿孔12G之長軸線為該散熱器Μ之下端面長料 ::成:對稱線。該散熱器10之圓形頂面向下凹陷形成有直 2該頂面小之-圓形接觸部m,該接觸部a?大小料 ^-極體模組20對應,以容置並導熱接觸該發光二極體 =、,且2〇。該等散熱鰭片14係由從散熱器1()下端面延伸至 :周面之溝槽分割而成’該等溝槽底部底部表面相對散熱 斋10中心軸線傾斜且為弧狀面,各溝槽與各200921001 IX. Description of the Invention: [Technical Field] The present invention relates to a light-emitting diode lamp, and more particularly to a light-emitting diode lamp having a heat dissipation structure. ~ [Prior Art] As a new generation of third-generation light source, π-emitting diode light source can not replace traditional incandescent lamps on a large scale, but it has the advantages of long, energy-saving and environmental protection, and is generally seen by the market. The two modules consisting of LEDs can produce high-power, high-brightness light sources, which can replace existing incandescent lamps for indoor and outdoor lighting. It will also replace the existing light sources such as traditional incandescent lamps extensively and revolutionarily. In turn, it becomes the main light source that meets the theme of energy conservation and environmental protection. ... However, the larger the brightness and brightness of the LED or its module, the more it is difficult to accumulate in a limited-volume LED lamp. Therefore, the application of the light-emitting diode in lighting is still the bottleneck of the technology. This is also the key point for the most difficult breakthrough in the current high-power, high-brightness LED lighting. a (4) Where the heat dissipation scheme is common in the industry: Yes, a heat sink is installed inside. The heat is dissipated into the surrounding air through the surface of the heat sink and the convection. Therefore, it is necessary to meet the high heat dissipation requirements of the high-level light-emitting diode lamp so that it can work normally. Usually, it is made up of large size and large volume, which makes the overall lamp volume become larger. 200921001 [Inventive content] There is a need to provide a recorded light fixture, which can pass the lighter The two poles have better heat dissipation performance. _ finite volume to obtain a kind of light-emitting diode lamp with heat dissipation structure, which comprises a heat device, attached on the top of the heat sink, a ... ^ ^ 疋 先 先 — 极 极 极 极 极 极 极 极 极 极 极The lampshade is arranged in a cylindrical shape, and the basin is provided with a plurality of grooves extending to the circumferential surface thereof to divide a plurality of divergent ridges and cymbals. The bottom surface of the sump is relatively heat-dissipating. The center axis of the device is tilted. ..., compared with the 'inclined surface of the above-mentioned light-emitting diode lamp radiator:: the circumferential surface is extended' so that it can be easily smeared and smashed: the two-way processing is easy to obtain a higher and wider heat-dissipating fin The film and, the original degree of 'thereby a gentle gentleman's ritual 佯 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 侍 侍 侍 侍 侍 侍 侍[Embodiment] The light-emitting diode lamp of the present invention having a heat-dissipating structure is shown as a == upper/mounted with a plurality of light-emitting diode elements 22 and attached; ...... one of the upper end surface of the light-emitting diode module One of the light guides 3 of the polar body module 20 is provided with a lampshade 4 of the first one. First of all, and in the month of the LED module and see Figures 3 to 5, the above-mentioned heat sink 1 is made of materials such as Shao, copper, etc. (4) (4) U Haoyuan (4). The radiator 10 is roughly 乂. - comprising - a heat conductor 12 and a plurality of heat dissipating fins 14 extending from the heat conductor 12. The upper end surface of the heat conductor 12 is circular, which is = 200921001 = the central axis of the heat sink 10 is flush with both sides a long groove region, and the groove region is distributed on the strip ', -4 12 can be formed by a circular top surface facing inwardly toward the bottom, and the body is 1 Π ^ Τ聃 concave. The axis of the heat conductor 12 is formed by - (4) Then, the perforation of the shape "1' is the long axis of the end face of the heat sink 为: the material is: a symmetrical line. The circular top of the heat sink 10 is recessed downwardly to form a straight line 2 and the top surface is small. a circular contact portion m corresponding to the size of the body member 20 for accommodating and thermally contacting the light emitting diodes =, and 2 〇. The heat dissipating fins 14 are The lower end surface of the heat sink 1 () extends to: the groove of the circumferential surface is divided into 'the bottom surface of the bottom of the groove is inclined with respect to the central axis of the heat dissipation 10 and is an arc Surface, with each trench

均相互平行。該等溝槽與散熱韓片14關於散熱器、‘;;U 〜軸線及-通過散熱器1G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。 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2G中心開設-圓形透孔24,該等發光m件 22關於該發光二極體模組2〇之圓心均勾對稱地安裝在該 電路板上。 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1〇頂面上時 該、5緣34大小正好緊後環繞在該散熱器1 〇頂部之圓形 接觸部122周圍。該導光罩30之碗壁上通常會設置有反光 8 200921001 =上以:散射到其上之光線按一定之需要 方向上’、“形成料㈣之平行光絲焦光。疋之 上述燈覃40為由透明材料一體形成之球形罩體 罩40底部開設有缺口(圖未示),該缺 錢 邊緣’該水平邊緣與該導光罩3〇之結合緣%連::平 =;〇將位於該散熱器10頂部之發光二極體模二 上述發光二極體燈具在組裝時,該發光 貼設料散MU)頂部之接觸部122内,絲在該 極體模組 2〇 Η ^ ^ Φ - 4¾ afe -,., 油2與該接觸部122導教 々上罩3〇之結合緣34可通過鎖螺釘或粘貼等方 式貼设在該散熱H 1G頂部上並緊密環繞在該散熱器Μ 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 罩30結合緣34接合固定。 、 上述發光二極體燈具在使用時,該發光二極體元件U 產生光透過該燈罩40及經該導光罩3〇反射而照射到周圍 環境中去而起到照明之作用。同時,該發光二極體元件U 工作日守產生之熱Ϊ通過該散熱器1〇頂部之接觸部122傳遞 給邊散熱器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,^ 散熱器10導熱體12内之穿孔120與該燈罩4〇内之空間連 通,以便該燈罩40内之尚溫空氣逃逸到周圍環境中去,從 200921001 而有利於散發該發光二極體元件22之熱量。 亡述散熱器10可通過在一圓形柱體周緣直接用刀且刨 出傾斜之溝槽,而形成散熱鰭片14,具有加 4 ;潔緊凑及能有效地增大其散熱面積等優點,且在該:: 中心設有中空之導熱體12,能將熱量均勾 14上及通過該導熱體12穿孔12〇更好地與周圍環境連二 利申述’本發明符合發明專利要件,爰依法提出專 惟’以上料者僅為本發日狀㈣實施例,舉凡 ^案技藝之人士,在|依本發明精神所作之等效 或'交化,皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 二極體燈具之一優 一極體燈具之立體 圖1係本發明具有散熱結構之發光 選實施例之立體組合圖。 圖2係圖1中具有散熱結構之發光 分解圖。 圖3係圖2中沿剖線ΠΙ_ΙΠ之剖視圖。 圖4係圖2中散熱器之側視圖。 圖5係圖2中散熱器之仰視圖。 主要元件符號說明】 散熱器 10 導熱體 穿孔 120 接觸部 散熱鰭片 14 發光二極體模組 發光二極體元件 22 透孔 12 122 20 24 200921001 導光罩 結合緣 30 通孑L 32 34 燈罩 40 11They are all parallel to each other. The grooves are symmetrical with the heat dissipating fins 14 about the heat sink, '; U to the axis and - through the longitudinal section of the central axis of the heat sink 1G, and the trenches near the central axis are deeper than the grooves of the central axis. The LED module 20 includes a circuit board having a circular shape, and is sized to be received in the contact portion 122 of the heat sink 10. The center of the LED module 2G is opened - a circular through hole 24 The light-emitting m pieces 22 are mounted on the circuit board with respect to the center of the light-emitting diode module 2〇. 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 around the circumference of the light guide cover 30. When the top surface of the heat sink 1 is on the top surface, the 5 edge 34 is just right around the circular contact portion 122 at the top of the heat sink 1 . The wall of the light guide cover 30 is usually provided with a reflective light. 200921001=upper: the light scattered thereon is in a desired direction, and the parallel light of the material (4) is formed. 40 is a notch (not shown) at the bottom of the spherical cover cover 40 integrally formed of a transparent material, and the missing edge 'the horizontal edge is connected with the joint edge of the light guide cover 3:: flat =; The light-emitting diode of the second light-emitting diode on the top of the heat sink 10 is assembled, and the light-emitting diode MU is placed in the contact portion 122 at the top of the heat sink 10, and the wire is in the pole body module 2 〇Η ^ ^ Φ - 43⁄4 afe -,., the bonding edge 34 of the oil 2 and the contact portion 122 of the contact portion 122 can be attached to the top of the heat dissipation H 1G by means of a lock screw or a paste, and tightly surround the heat sink The cover 40 around the contact portion 122 is disposed on the LED module 20 and the horizontal edge of the cover 40 can be bonded and fixed to the cover 30 by a bonding or the like. When the body lamp is in use, the light emitting diode element U generates light to pass through the lamp cover 40 and The light guide 3 is reflected and irradiated to the surrounding environment to function as an illumination. At the same time, the heat generated by the LED device U is transmitted to the side through the contact portion 122 of the top of the heat sink 1 The heat conductor 12 of the heat sink 10 is evenly distributed to the heat dissipation fins 14 via the heat conductor 12, and finally the heat is radiated into the surrounding air through the heat dissipation fins 14 to cool 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 4, so that the warm air in the lamp cover 40 escapes to the surrounding environment, and the light emitting diode is advantageously distributed from 200921001. The heat of the component 22. The heatsink 10 can form the heat dissipation fins 14 by directly using a knife on a circumference of a circular cylinder and slanting the groove, which has a heat-increasing fin 14 and is compact and can effectively increase The heat dissipating area and the like have the advantages, and the hollow heat conductor 12 is disposed at the center: the heat can be hooked on the heat conductor 12 and perforated 12 through the heat conductor 12 to better conform to the surrounding environment. Invention patent requirements, Those who are solely responsible for the above-mentioned materials are only the embodiment of this issue (4). For those who are skilled in the art, the equivalent or 'intersection' in accordance with the spirit of the present invention shall be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS A perspective view of a preferred one-pole lamp of a diode lamp is a perspective view of a light-emitting embodiment of the present invention having a heat-dissipating structure. Figure 2 is an exploded view of the heat-dissipating structure of Figure 1. Figure 3 Figure 2 is a cross-sectional view along the line ΠΙ ΙΠ 。. Figure 4 is a side view of the heat sink in Figure 2. Figure 5 is a bottom view of the heat sink in Figure 2. Description of the main components of the heat sink 10 heat sink perforation 120 contact heat dissipation Fin 14 Light Emitting Diode Module Light Emitting Diode Element 22 Through Hole 12 122 20 24 200921001 Light Guide Cover Bonding Edge 30 Through L 32 34 Shade 40 11

Claims (1)

200921001 申請專利範圍 1. 一種具有散熱結構之發光二極體燈具,其包括—散熱 器、貼設在該散熱ϋ上端面上之―發光二極體模組絲 發,二極體模組罩設其内之-燈罩,其改良在於:該散 熱器呈圓柱狀,其下端面上設有多數延伸至苴周面之 槽從而分割出多數散熱鰭片,該等溝槽底部表面相對散 熱器中心軸線傾斜。 2. 如申請專利範圍第!項所述之具有散熱結構之發光二極 體燈具,其中該溝槽底部表面為弧狀面。 3. =請專利範圍第2項所述之具有散熱結構之發光二極 :燈具,其中該溝槽與其分割出來之散熱鰭片均相互平 (二申請專利範圍第!項所述之具有散熱結構之發光二極 體燈具’其中該溝槽與散錢片關於—通過散熱 軸線之縱切面對稱。 5如圍第4項所述之具有散熱結構之發光二極 體燈/、’其中該溝槽與散熱鰭片關於散熱器之 對稱。 專利範圍第3項所述之具有散熱結構之發光二極 且/、’其中該靠近中心軸線之溝槽較遠離中心轴線之 溝槽深。 7.:二:專:!圍第3項所述之具有散熱結構之發光二極 體燈/、,其中該散熱器端面上具有一長條形且兩側邊平 12 200921001 齊之無溝槽區。 8.如申請專利範圍第 之發光二極體燈具 成有一穿孔。 1至7任一項項所述之具有散熱結構 ,其中該導熱體沿散熱器中心轴線开; 9·如申請專利範圍第8項所述之具有散熱結構 ㈣賊曰 ++ 7Χ —極 體燈具,其中該穿孔截面成橢圓形,且其該橢圓形 軸線為散熱器下端面之對稱線。 又 專利範圍第1項所述之具有散熱結構之發光二極 /且/、,其中該散熱器上端面呈圓形且向下凹設 形接觸部,該發光二極體模組貼置於接觸部内。 1=:==所述之具有散熱結構之發光二極 圍繞該發i;模與燈罩之間並 項所述之具有散熱結構之發光二 緣愈4: 設置有圓環形之水平結合緣,該結合 13.如申二、喝接合並圍繞該發光二極體元件。 極體==第12項所述之具有散熱結構之發光二 體,其底部開設=為由透明材料—體形成之球形罩 接合之水平邊=、口,該缺口周緣形成有與該結合緣 13200921001 Patent application scope 1. A light-emitting diode lamp having a heat dissipation structure, comprising: a heat sink, a light-emitting diode module wire attached on an upper end surface of the heat-dissipating heat sink, and a diode module cover The improvement of the lampshade is that the heat sink has a cylindrical shape, and a plurality of grooves extending to the circumferential surface of the crucible are disposed on the lower end surface thereof to divide a plurality of heat dissipating fins, and the bottom surface of the grooves is opposite to the central axis of the heat sink. tilt. 2. If you apply for a patent scope! The illuminating diode lamp having a heat dissipating structure, wherein the bottom surface of the groove is an arc surface. 3. The light-emitting diode with a heat-dissipating structure according to the second aspect of the patent: the luminaire, wherein the groove and the heat-dissipating fins which are divided therefrom are mutually flat (the heat-dissipating structure described in the second application patent scope! The light-emitting diode lamp 'where the groove is related to the loose money piece—is symmetrical through the longitudinal section of the heat dissipation axis. 5 The light-emitting diode lamp having the heat-dissipating structure as described in item 4/, Symmetrical with the heat sink fins about the heat sink. The light emitting diode having the heat dissipation structure described in the third aspect of the patent and/, wherein the groove near the central axis is deeper than the groove away from the central axis. 2: Special: The light-emitting diode lamp with heat dissipation structure according to item 3, wherein the end face of the heat sink has a long strip shape and the sides are flat 12 200921001. The light-emitting diode lamp of claim 1 has a perforation. The heat dissipation structure according to any one of items 1 to 7, wherein the heat conductor is opened along a central axis of the heat sink; The item has a heat dissipation structure (four) thief ++ 7Χ—A polar luminaire in which the perforated cross section is elliptical, and the elliptical axis is a symmetry line of the lower end surface of the heat sink. Wherein, the upper end surface of the heat sink has a circular shape and is downwardly recessed with a contact portion, and the light emitting diode module is placed in the contact portion. 1=:== The light emitting diode having the heat dissipation structure surrounds the The light-emitting edge of the heat-emitting structure between the mold and the lampshade is 4: a horizontal joint edge provided with a circular ring, the combination 13. such as Shen, drinking and surrounding the light-emitting diode The polar body == the light-emitting two body having the heat dissipation structure according to Item 12, the bottom opening = the horizontal edge of the spherical cover formed by the transparent material body, the mouth, and the periphery of the notch is formed with the combination Edge 13
TW96142343A 2007-11-09 2007-11-09 Led lamp having heat dissipation structure TWI331199B (en)

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