TWM430565U - Heat-dissipation structure of LED bulb - Google Patents

Heat-dissipation structure of LED bulb Download PDF

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Publication number
TWM430565U
TWM430565U TW100218687U TW100218687U TWM430565U TW M430565 U TWM430565 U TW M430565U TW 100218687 U TW100218687 U TW 100218687U TW 100218687 U TW100218687 U TW 100218687U TW M430565 U TWM430565 U TW M430565U
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Taiwan
Prior art keywords
heat
vertical
dissipation structure
heat dissipation
heat conducting
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TW100218687U
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Chinese (zh)
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I-Fee Chen
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Easlite Industry Co Ltd
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Priority to TW100218687U priority Critical patent/TWM430565U/en
Priority to CN2012200653907U priority patent/CN202442305U/en
Publication of TWM430565U publication Critical patent/TWM430565U/en

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Description

M430565 五、新型說明: 【新型所屬之技術領域】 本創作係為一種LED燈泡之散熱結構,尤指一種用 於提供LED發光模組進行散熱的散熱結構。 【先前技術】 鑑於環保及省電的需求,目前的LED燈泡不但已逐 漸取代傳統照明燈具,例如桌燈、壁用燈、手電筒及路 燈等照明用具,亦廣泛應用於各種電子產品上面,例如 廣告看板、交通指示牌及液晶螢幕背光板等電子設備。 然而LED燈泡雖然在提供同一亮度的情形下可具有遠比 鎢絲燈泡耗電量低的優點,但高功率的LED燈泡在實際 運作時,仍會有產生高溫的現象,當高溫持續過久即會 造成LED燈泡的損壞,或造成發光效率的下降,故如何 解決散熱問題成為LED燈具是否能夠穩定地運作的一大 問題。 目前對於LED燈具於散熱問題的解決方法,是在燈 具上設置一散熱結構執行散熱的功能,該散熱結構一般 是以導電及導熱性極佳的金屬或合金所製成,例如銅金 屬或銘合金,散熱結構其中一種方式是以一水平方向接 觸面來實現,提供LED發光模組裝設其上,位在散熱結 構上的其他外表面則設置有複數散熱鰭片,當LED發光 模組運作產生高熱時,熱量可以經由水平方向接觸面導 引吸收,再經由散熱鰭片直接散逸於空氣中,以達到將 3 M430565 led發光模組予以散熱的目的。 ,另一種方式則是以一垂直方向接觸面來實現,提 供一筒體接觸面來將LED發光模組及其線路包覆於其 中位在散熱結構外的其他外表面則設置有複數散熱鰭 片-led發光模組運作產生高熱時,熱量可以經由垂 直方向接觸面導引吸收,再經由散熱鰭片直接散逸於空 氣中,以達到將LED發光模組予以散熱的目的。 但前述的散熱結構由於一般是藉由純鋁金屬所製 成,不但成本較為高昂,且當使用者不當使用而碰觸於 散熱器表面上的散熱鰭片時,會易於因LED發光模組的 漏電而造成有觸電的危險,甚至因金屬的高熱而有造成 皮膚燙傷的缺點。 【新型内容】 為了能有效克服上述習知技術的問題,本創作透由 複合性的結構設計以及模内成型(Insert Molding)的技術 來改良散熱結構。 為此,本創作揭露一種LED燈泡之散熱結構,包括: 一中空的垂直方向導熱筒體,垂直方向導熱筒體上 下兩端各構成一上端開口及一下端開口,一水平方向導 熱片’形成在該垂直方向導熱筒體上端開口;以及 一外殼體’包覆設置於該垂直方向導熱筒體的外表 面,該外殼體頂端位於該垂直方向導熱筒體上端開口周 緣構成一環狀承載平面。 4 M430565 首先,藉由垂直方向導熱筒體與水平方向導熱片的 複合式散熱結構’使散熱效果更趨近完美;其次,由非 導電材料所製成的外殼體,更成功的將散熱用的接觸面 隔絕’避免觸電與费傷等意外;再者,以模内成型(ι_ Moldmg)將塑件等非導電性材料與金屬件等導電性材料 結合,取代了傳統需使用導電膠的嵌合方式除了重量 更輕盈之外,更不用擔心導電膠熔化等問題發生。 【實施方式】 »青 > 閱第1圖及第2圖所示,分別為本創作燈 泡之散熱結構的外觀示意@及剖面圖。如圖所示,本創 作的LED燈/包之散熱結構1包括有-呈中空的垂直方向 導熱筒體10及一外殼體20;其中垂直方向導熱筒體1〇 上下兩端各構成一上端開口 12及一下端開口 14,垂直 方向導熱筒體10是選擇以導熱性金屬所製成,垂直方向 導熱筒體10上端開口 12蓋設有一水平方向導熱片16, 水平方向導熱片16表面穿設有複數穿孔162及複數螺孔 W4,垂直方向導熱筒體1〇下端開口 14表面同樣穿設有 複數穿孔182;外殼體20是包覆設置於垂直方向導熱筒 體10的外表面,外殼體20頂端位在垂直方向導熱筒體 1 〇上端開口 12周緣構成一環狀承載平面22,且位在承 載平面22上表面周緣環設有一嵌槽24,另在位在承載 平面22下表面及外殼體20的外表面具有複數散熱片 26,並呈一放射狀環繞設於外殼體2〇的外表面,且在本 創作中,外殼體20、承載平面22及散熱片26是選擇以 5 M430565 絕緣及導熱性的非金屬材質以一體成形方式成形於垂直 方向導熱筒體ίο上所製成’最佳者可以導熱性塑料所製 请參閱第3圖所示’為本創作的LED燈泡之散熱結 構於組合LED發光模組及燈罩後的剖面示意圖,如圖所 示,本創作的LED燈泡之散熱結構1的水平方向導熱片 16用於提供一 LED發光模組30貼設其表面上,lED發 光模組30可以藉由複數螺釘螺固於水平方向導熱片16 上的螺孔164 ’而LED發光模組3 0的複數導線3 2則可 分別穿設過水平方向導熱片16上的穿孔162,並經由垂 直方向導熱筒體10内部延伸,最後由穿孔182穿設出垂 直方向導熱筒體10下端開口 14的外部,以便與連接於 垂直方向導熱筒體10下端的一電源接頭(圖未示)呈一電 連接;再者,一呈圓弧狀的燈罩4〇則可透過與嵌槽24 的固定而蓋設於承載平面22的表面。 請參閱第4圖所示,此為本創作之第二實施例,其 特色係將水平方向導熱片16向外作延伸,此時水平方向 導熱片16與垂直方向導熱筒體10之結合關係係一體成 型或兩件式之一,使散熱面積更大以致散熱效果更好, 其它原理與前述實施例相同。 请參閱第5圖所示,此為本創作之第三實施例,本 創作LED燈泡之散熱結構1包括有一垂直方向導熱筒體 1〇,該垂直方向導熱筒體10上下兩端各構成一上端開口 12及一下端開口 14,且於該上端開口 12以水平方向形 6 M430565 成一延伸段16a; —外殼體20,包覆設置於該垂直方向 導熱筒體10的外表面,該外殼體2〇頂端位於該垂直方 向導熱筒體10上端開口 12周緣構成一環狀承載平面 22,其它原理與前述實施例相同。 請參閱第5圖所示,此為本創作之第四實施例,本 創作LED燈泡之散熱結構中之垂直方向導熱筒體1〇與 一擴大水平方向導熱片16b藉由一導角結構1〇a結合, 三者之結合關係係一體成型。此實施例藉由擴大水平方 向導熱片16b與導角結構l〇a之結構的改變,使散熱面 積使散熱面積更大以致散熱效果更好,其它原理與前述 實施例相同。 藉由前述的說明可知,本創作的led燈泡之散熱結 構主要是藉由將LED發光模組30與水平方向導熱片16 的接觸’使得LED發光模組3 0所產生的熱量,可以經 由水平方向導熱片16的導引’傳遞至與水平方向導熱片 16相連接的垂直方向導熱筒體1〇’並再配合包覆於垂直 方向導熱筒體10表面的外殼體20,以及環繞於外殼體 20表面的散熱片26,迅速地將熱量經由散熱片26散逸 至空氣中而達到散熱的功能’且由於本創作的外殼體2〇 及散熱片26可以絕緣且導熱性的塑料以模内成型(insert Molding)之製程所製成,故本創作的成品重量相對於習 知技術來說,不但可以達到降低產品的重量,避免接觸 而產生觸電的危險,並可以同時維持絕佳的散熱特性, 並進一步降低生產的成本。 7 M430565 綜上所陳,僅為本創作之較佳實施例而已, 創作;凡其他未脫離本創作所揭示之精神下而 :成的等效修飾或置換,均應包含於後述”專利範圍 【圖式簡單說明】 =1圖為本創作LED燈泡之散熱結構的外觀示意圖; 2圖為本創作LED燈泡之散熱結構的剖面圖; 第3圖為本創作的LED燈泡之散熱結構於組合發 光模組及燈罩後第一實施例的剖面示意圖; 第圖為本創作的LED燈泡之散熱結構於組合led發 光模組及燈罩後第二實施例的剖面示意圖; 第5圖為本創作的LED燈泡之散熱結構於組合lED發 光模組及燈罩後第三實施例的剖面示意圖; 第6圖為本創作的LED燈泡之散熱結構第四實施例的 剖面示意圖。 【主要元件符號說明】 1 LED燈泡之散熱結構 10 垂直方向導熱筒體 10a 導角結構 12 上端開口 14 下端開口 16 水平方向導熱片 8 M430565 16a 延伸段 16b 擴大水平方向導熱片 162 穿孔 164 螺孔 182 穿孔 20 外殼體 22 承載平面 24 嵌槽 26 散熱片 30 LED發光模組 32 導線 40 燈罩M430565 V. New Description: [New Technology Field] This creation is a heat dissipation structure for LED bulbs, especially a heat dissipation structure for providing LED lighting modules for heat dissipation. [Prior Art] In view of environmental protection and power saving requirements, current LED bulbs have gradually replaced traditional lighting fixtures, such as table lamps, wall lamps, flashlights and street lamps, and are also widely used in various electronic products, such as advertising. Electronic devices such as billboards, traffic signs and LCD screen backlights. However, although the LED bulb can have the advantage of lower power consumption than the tungsten filament bulb when the same brightness is provided, the high-power LED bulb still has a high temperature phenomenon when the actual operation is performed, and when the high temperature continues for too long, It will cause damage to the LED bulb or cause a decrease in luminous efficiency. Therefore, how to solve the heat dissipation problem becomes a major problem for whether the LED lamp can operate stably. At present, the solution to the heat dissipation problem of the LED lamp is to provide a heat dissipation structure on the lamp to perform heat dissipation. The heat dissipation structure is generally made of a metal or alloy having excellent electrical conductivity and thermal conductivity, such as copper metal or alloy. One of the ways of dissipating the heat dissipation structure is realized by a horizontal contact surface, and the LED light-emitting mold is assembled thereon, and the other outer surfaces located on the heat dissipation structure are provided with a plurality of heat-dissipating fins, and the LED light-emitting module operates. When the heat is high, the heat can be absorbed and absorbed through the horizontal contact surface, and then directly dissipated into the air through the heat dissipation fins, so as to achieve the purpose of dissipating heat of the 3 M430565 led light-emitting module. The other way is to realize a vertical contact surface, and provide a cylindrical contact surface to cover the LED light-emitting module and its line on the other outer surface of the heat-dissipating structure, and then provide a plurality of heat-dissipating fins. When the LED lighting module is operated to generate high heat, the heat can be absorbed and absorbed through the vertical contact surface, and then directly dissipated into the air through the heat dissipating fins, so as to achieve the purpose of dissipating the LED lighting module. However, the above-mentioned heat dissipation structure is generally made of pure aluminum metal, which is not only costly, but also can be easily used by the LED light-emitting module when the user touches the heat-dissipating fin on the surface of the heat sink improperly. Leakage causes a risk of electric shock, and even has the disadvantage of causing skin burns due to the high heat of the metal. [New content] In order to effectively overcome the above-mentioned problems of the prior art, the present invention improves the heat dissipation structure by a composite structural design and an in-mold molding technique. To this end, the present invention discloses a heat dissipating structure of an LED bulb, comprising: a hollow vertical heat conducting cylinder body, the upper and lower ends of the vertical heat conducting cylinder body respectively forming an upper end opening and a lower end opening, and a horizontal direction heat conducting sheet is formed in The upper end of the vertical heat conducting cylinder is open; and an outer casing 'covers the outer surface of the vertical heat conducting cylinder. The top end of the outer casing is located at an upper end of the vertical heat conducting cylinder to form an annular bearing plane. 4 M430565 Firstly, the composite heat dissipation structure of the vertical heat conduction cylinder and the horizontal heat conduction sheet makes the heat dissipation effect closer to perfection. Secondly, the outer casing made of non-conductive material is more successful for heat dissipation. The contact surface is isolated to avoid accidents such as electric shock and injury; in addition, in-mold molding (ι_ Moldmg) combines non-conductive materials such as plastic parts with conductive materials such as metal parts, replacing the traditional use of conductive glue. In addition to the lighter weight, there is no need to worry about the melting of conductive glue. [Embodiment] »Green > Referring to Fig. 1 and Fig. 2, the appearance of the heat dissipation structure of the creation lamp is shown in Fig. @ and a sectional view, respectively. As shown in the figure, the heat dissipation structure 1 of the LED lamp/package of the present invention comprises a hollow vertical heat conducting cylinder 10 and an outer casing 20; wherein the vertical heat conducting cylinder 1 has an upper end opening at the upper and lower ends. 12 and the lower end opening 14, the vertical heat conducting cylinder 10 is selected from a heat conductive metal, and the upper end opening 12 of the vertical heat conducting cylinder 10 is covered with a horizontal heat conducting sheet 16, and the surface of the horizontal heat conducting sheet 16 is provided. The plurality of perforations 162 and the plurality of screw holes W4, the surface of the lower end opening 14 of the vertical heat conducting cylinder 1 is also provided with a plurality of perforations 182; the outer casing 20 is covered on the outer surface of the vertical heat conducting cylinder 10, and the outer casing 20 is at the top end. The circumference of the upper end opening 12 of the heat conducting cylinder 1 in the vertical direction forms an annular bearing plane 22, and a groove 24 is formed on the circumference of the upper surface of the bearing plane 22, and the lower surface of the bearing plane 22 and the outer casing 20 are located. The outer surface has a plurality of fins 26 and is radially disposed on the outer surface of the outer casing 2, and in the present invention, the outer casing 20, the bearing plane 22 and the fins 26 are selectively insulated by 5 M430565 The non-metallic material with thermal conductivity is integrally formed into the vertical heat-conducting cylinder. The best one can be made of thermal conductive plastic. Please refer to Figure 3 for the heat dissipation structure of the LED bulb. The cross-sectional schematic diagram of the LED light-emitting module and the lamp cover is as shown in the figure. The horizontal heat-conducting film 16 of the heat-dissipating structure 1 of the LED light bulb of the present invention is used to provide an LED light-emitting module 30 on its surface, and the lED light-emitting module The group 30 can be screwed to the screw hole 164 ′ on the horizontal heat conducting sheet 16 by a plurality of screws, and the plurality of wires 3 2 of the LED lighting module 30 can be respectively passed through the through holes 162 on the horizontal heat conducting sheet 16 , and The inside of the heat conducting cylinder 10 extends through the vertical direction, and finally the outer surface of the lower end opening 14 of the vertical heat conducting cylinder 10 is pierced by the through hole 182 so as to be connected with a power connector (not shown) connected to the lower end of the vertical heat conducting cylinder 10. An electrical connection; in addition, an arc-shaped cover 4 can be covered on the surface of the bearing plane 22 through the fixing of the recess 24. Referring to FIG. 4, this is a second embodiment of the present invention. The feature is that the horizontal heat conducting sheet 16 is extended outward. At this time, the horizontal conductive sheet 16 and the vertical heat conducting cylinder 10 are coupled. One of the one-piece or two-piece type makes the heat dissipation area larger so that the heat dissipation effect is better, and other principles are the same as those of the foregoing embodiment. Please refer to FIG. 5 , which is a third embodiment of the present invention. The heat dissipation structure 1 of the LED bulb of the present invention comprises a vertical heat conducting cylinder 1 , and the upper and lower ends of the vertical heat conducting cylinder 10 form an upper end. The opening 12 and the lower end opening 14 are formed in the horizontal direction 6 M430565 as an extension 16a in the horizontal direction; the outer casing 20 is covered on the outer surface of the vertical heat conducting cylinder 10, the outer casing 2〇 The top end of the upper end opening 12 of the heat conducting cylinder 10 in the vertical direction constitutes an annular bearing plane 22, and other principles are the same as those of the previous embodiment. Please refer to FIG. 5 , which is a fourth embodiment of the present invention. The vertical heat conducting cylinder 1 〇 and the enlarged horizontal heat conducting sheet 16 b in the heat dissipation structure of the LED bulb are formed by a lead angle structure. a combination, the combination of the three is integrated. In this embodiment, by changing the structure of the horizontal guide glass 16b and the lead structure l〇a, the heat dissipating area is made larger so that the heat dissipating area is larger, and the other principles are the same as those of the foregoing embodiment. As can be seen from the foregoing description, the heat dissipation structure of the LED light bulb of the present invention is mainly caused by the contact between the LED light-emitting module 30 and the horizontal heat-conductive sheet 16 so that the heat generated by the LED light-emitting module 30 can be horizontally The guide of the heat transfer sheet 16 is transmitted to the vertical heat conduction cylinder 1'' connected to the horizontal heat conduction sheet 16, and is further fitted to the outer casing 20 which is coated on the surface of the vertical heat conduction cylinder 10, and surrounds the outer casing 20. The surface of the heat sink 26 rapidly dissipates heat to the air via the heat sink 26 to achieve heat dissipation function. And since the outer casing 2 and the heat sink 26 of the present invention can be insulated and the thermal conductive plastic is molded in-mold (insert Molding's process is made, so the weight of the finished product is not only lowering the weight of the product, avoiding the risk of electric shock due to contact, and maintaining excellent heat dissipation characteristics, and further Reduce the cost of production. 7 M430565 In summary, only for the preferred embodiment of the creation, creation; any other equivalent modification or replacement without departing from the spirit of this creation shall be included in the scope of the patents described later [ Brief description of the figure] =1 Figure is a schematic view of the heat dissipation structure of the LED bulb; 2 is a sectional view of the heat dissipation structure of the LED bulb; Figure 3 is the heat dissipation structure of the LED bulb of the creation BRIEF DESCRIPTION OF THE DRAWINGS FIG. 5 is a cross-sectional view showing a second embodiment of the heat dissipation structure of the LED bulb of the present invention after combining the LED lighting module and the lampshade; FIG. 5 is a schematic view of the LED bulb of the present invention. FIG. 6 is a cross-sectional view showing a fourth embodiment of the heat dissipation structure of the LED light bulb of the present invention. FIG. 6 is a cross-sectional view showing a fourth embodiment of the heat dissipation structure of the LED light bulb. Structure 10 Vertical direction heat conducting cylinder 10a Corner structure 12 Upper end opening 14 Lower end opening 16 Horizontal direction heat conducting sheet 8 M430565 16a Extension section 16b Expanding horizontal direction heat conducting sheet 162 Perforated 164 Screw hole 182 Perforation 20 Outer casing 22 Bearing plane 24 Insert groove 26 Heat sink 30 LED lighting module 32 Conductor 40 Shade

Claims (1)

M430565 101年3月/日修正替換頁 六、申請專利範圍: 1. 一種LED燈泡之散熱結構,包括: 一垂直方向導熱筒體,該#直方向導熱筒體上下兩端各 構成一上端開口及一下端開口; 一水平方向導熱片,形成在該垂直方向導熱筒體上端開 口;以及 一外殼體,包覆設置於該垂直方向導熱筒體的外表面, 該外殼體頂端位於該粢直方向導熱筒體上端開口周緣 構成一環狀承載平面。 2. 如申請專利範圍第1項所述之LED燈泡之散熱結構,其 中該垂直方向導熱筒體選擇導熱性材料所製成。 3. 如申請專利範圍第1項所述之LED燈泡之散熱結構,其 中該水平方向導熱片表面穿設有複數穿孔及複數螺孔。 4·如申請專利範圍第1項所述之LED燈泡之散熱結構,其 中該外殼體及該承載平面是選擇絕緣及導熱性的非金屬 材質以一模内成型之製程所製成。 5. 如申請專利範圍第1項所述之LED燈泡之散熱結構,其 中該垂直方向導熱筒.體及該水平方向導熱片之結合關係 係一體成型或兩件式之一。 6. 如申請專利範圍第1項所述之LED短泡之散熱結構,其 中該水平方向導熱片包括一延伸段向外作延伸。 7. —種LED燈泡之散熱結構,包括: 一垂直方向導熱筒體,該垂直方向導熱筒體上下兩端各 10 構成一上端開口及一下端開口 平方向形成一延伸段, 一外殼體,·包覆設置於该垂直方向導熱筒體的外表面, 該外殼體頂端位於該燊直方向導熱筒體上端開口周緣 構成一環狀承載平面β 8.如申請專利範圍第7項所述之LED燈泡之散熱結構,其 中該垂直方向導熱筒體選擇導熱性材料所製成。 9.如申請專利範圍第7項所述之LED燈泡之散熱結構,其 中該垂直方向導熱筒體上之延伸段表面穿設有複數穿孔 及複數螺孔。 10. 如申請專利範圍第7項所述之LED燈泡之散熱結構,其 中該外殼體及該承載平面是選擇絕緣及導熱性的非金屬 材質以一模内成型之製稃所製成。 11. 如申請專利範圍第7項所述之LED燈泡之散熱結構,其 中該垂直方向導熱筒體及該延伸段之結合關係係一體成 型或兩件式之一。 12. 如申請專利範圍第7項所述之LED燈泡之散熱結構,其 中該垂直方向導熱筒體與一擴大水平方向導熱片藉由一 導角結構結合,三者之結合關係係一體成型。M430565 Correction and replacement page of March, 2003, the patent application scope: 1. A heat dissipation structure of an LED bulb, comprising: a vertical direction heat conduction cylinder body, wherein the upper and lower ends of the direct heat conduction cylinder body constitute an upper end opening and a lower end opening; a horizontal direction heat conducting sheet formed at an upper end opening of the vertical direction heat conducting cylinder; and an outer casing body covering the outer surface of the vertical heat conducting cylinder body, the top end of the outer casing body being thermally conductive in the vertical direction The peripheral edge of the upper end of the cylinder constitutes an annular bearing plane. 2. The heat dissipation structure of the LED light bulb according to claim 1, wherein the vertical heat conduction cylinder is made of a heat conductive material. 3. The heat dissipation structure of the LED light bulb according to claim 1, wherein the surface of the horizontal heat conduction sheet is provided with a plurality of perforations and a plurality of screw holes. 4. The heat dissipation structure of the LED light bulb of claim 1, wherein the outer casing and the bearing plane are made of a non-metallic material selected for insulation and thermal conductivity by an in-mold molding process. 5. The heat dissipating structure of the LED bulb according to claim 1, wherein the combination of the vertical heat conducting tube body and the horizontal heat conducting sheet is one of a one-piece molding or a two-piece type. 6. The heat dissipation structure of the LED short bubble according to claim 1, wherein the horizontal heat conduction piece comprises an extension extending outward. 7. The heat dissipating structure of the LED bulb comprises: a vertical direction heat conducting cylinder body, wherein the upper and lower ends of the vertical heat conducting cylinder body 10 constitute an upper end opening and the lower end opening is formed in a flat direction to form an extending section, an outer casing body, The cover is disposed on the outer surface of the vertical heat conducting cylinder, and the top end of the outer casing is located at an upper end of the opening of the heat conducting cylinder of the vertical direction to form an annular bearing plane β. 8. The LED bulb according to claim 7 The heat dissipation structure, wherein the vertical heat conduction cylinder is made of a heat conductive material. 9. The heat dissipation structure of the LED light bulb of claim 7, wherein the surface of the extension portion of the vertical heat conduction cylinder is provided with a plurality of perforations and a plurality of screw holes. 10. The heat dissipation structure of the LED light bulb of claim 7, wherein the outer casing and the bearing plane are made of a non-metallic material selected to be insulative and thermally conductive. 11. The heat dissipation structure of the LED light bulb of claim 7, wherein the combination of the vertical heat conduction cylinder and the extension is one of two types or two pieces. 12. The heat dissipating structure of the LED bulb according to claim 7, wherein the vertical heat conducting cylinder and the enlarged horizontal heat conducting sheet are combined by a lead angle structure, and the combination of the three is integrally formed.
TW100218687U 2011-10-05 2011-10-05 Heat-dissipation structure of LED bulb TWM430565U (en)

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