201128131 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種LED投射燈座的散熱片改良設計， 尤指該散熱片係利用延伸成型的遮光片，因此於LED的投 射燈座構成一封閉的遮光牆’藉此防止漏光、防塵防蟲並 能增加散熱面積。 【先前技術】 習知的LED投射燈具’雖具有低耗電特性，但因LED 鲁發光體的耐熱程度很低’因此解決散溫是很重要的課題； 已知LED投射燈具的散熱燈座，有的是採用模鑄成型的金 屬散熱殼座，其整體很沉重，散熱效果亦不如預期，顯得 笨重且成本很高，故不符實用。 目前已知的LED投射燈具，亦有利用複數散熱片，以 輻射狀圍繞結合於燈座的圓柱形散熱基座上，而在散熱基 座貼觸結合一由LED發光體所串列構成的發光單元，使發 光單元的高溫可通過散熱基座與散熱片，完成快速散熱， ®藉此提高散熱效率。 上述以複數散熱片圍繞結合的習知led投射燈具，如 第六圖所示’由於在各散熱片10之間會產生相離的間隙A ’除了散熱基座20可擋住部份的漏光外，其餘光線仍會從 各間隙A直接透出，因此有漏光的問題，同時也造成灰塵 入内堆積’不僅易污損LED投射燈具，且很難清除，又因 光線會吸引趨光的飛蟲進入，故經常粘附蟲屍而藏污納垢 ，使用上非常困擾。 201128131 外側片10’因係金屬薄片材質，故 佈鋒芒畢露的刀月.、，使整個燈具的四週都宛如分 有改善必要有時因取拿疏忽，常易割傷人手，仍 【發明内容】 本發明之主尊g 散熱片改良設計，盆侍在提供一種LED投射燈座的 少一個垆# Θ 八糸在各放熱片的内側底部延伸設有至 座時=用:=，圍繞固設於燈靖 來=:=:止:光:r塵防蟲的效果，並藉遮光牆 面積進—步提升其散熱作用。 气献片=^人要目的’乃在於提供一種led投射燈座的 :、。又’係使各散熱片的外側端面設有反摺彎部 呈^^改善散熱片的鋒利的毛邊，使散熱片的外側端面 鈍化鳊面，以避免取拿時割傷人手。 【實施方式】 “兹依附圖實施例將本發明結構特徵及其他作用、目的 洋細說明如下： 座；其中 複數個散熱片 均設有至少-個第—遮光片】卜該第—遮光片⑽從散熱 片1的本體一侧形成垂直向的一體相連； 如第-、二圖所示，本發明所為「led投射燈座的散 …片改良」’主要係將複數個散熱片1以_射狀ϋ繞結合 —散熱基座2，並結合-電連接頭3而組成一LED投射燈 其係在各散熱片1的内側底部延伸 201128131 散熱基座2，係分別結合一電連接頭3及一發熱單元 4，該電連接頭3係鎖設於散熱基座2的上端，發熱單元 4係由複數個LED所串列構成，並可貼置結合於散熱基座 2的底面部21，散熱基座2的外環壁可開設複數個相鄰的 嵌槽22，用以匹配各散熱片i逐一嵌入結合，但有關散熱 片1與散熱基座2的結合形態，則並不以上述嵌入固定方 式為限，例如採用焊接或其他結合手段者，均仍可行； 藉由上述構件，係將各散熱片1圍繞固設於燈座的散 鲁熱基座1，並利用相鄰的第一遮光片u圍繞形成一道封閉 的遮光牆，因此使燈座達到防止漏光及防塵防蟲的效果， 並以遮光牆增加散熱面積，以進一步提升其散熱作用。 上述各散熱片1係與散熱基座2形成相互匹配的結合 ’如遇散熱基S 2的圓徑規格較小時（如圖實施例所示）， 各散熱片1並可於第—遮光片11的相鄰邊側再增設一第二 遮光片12 ’請參閱第四圖所示，所述第二遮光片12係從散 熱片1的本體-側形成水平向的—體相連，且構成第一遮 光片11的相鄰邊側’但該第二遮光片12並非必要設置，惟 需視該散熱基座2與散的匹配圓徑規㈣任意增減 ，當散熱基座2的圓徑規格較小時，為避免出現其它心 ’故可由第二遮光片12圍繞形成第二道封閉的遮光牆，使 燈座達到完全防止漏光及防塵防_效果，並增加其散執 面積。 …、 如第五、六圖所示，本發明的複數散熱片1，係可進 一步在外㈣面設妓摺彎部I3，藉此使各散w i均具 有鈍化的端©’以改善散熱片i的鋒利的毛邊避免取^ 201128131 時割傷人手。 構件上燈具的電連接頭3或發光單元4，均為習知 量亦可ίΐί 實施形態不拘’發光單元4的L職 里亦了視而要而自由增減串列。 租二ΤΙ所組成的™射燈座’於必要時亦可於整 側:面外部再匹配套置一外殼座，使散熱片1的外 圈束路，或是，亦可利用—簡單的襲，將該環 圈^套固整組散熱片i的最外緣端，用以框住並加強固 增減改變，兹不另贅果因均係簡易技術的 此外如本發明的散熱基座2，其係可為中空或實心的 土座本體4至月丈熱基座2的形狀也並不以圓管體為限 例士一角^㈤角形、多邊形或其它幾何形狀的其他散 熱基座，同理均可採用，並無特別限制必要；又各散熱片 1的形狀、大小、規格或排列形態，當然也可以適當改變 ’故凡基於相同技術内容所為的簡單變化或等效置換行為 ，均仍應視為不脫本案的技術範嘴。 綜上所述’可知本發明所為「LED投射燈座的散熱片 改良」設計，其結構組成及手段應用已符合新賴首創，且 與習知LED投射燈具已明顯不同，並具有進步功效，為此 敬祈依法審定並賜准專利，實為德便。 201128131 【圖式簡單說明】 第一圖為本發明應用於LED燈具的分解立體圖。 第二圖為本發明應用於LED燈具的組合立體圖。 第三圖為本發明應用於LED燈具的局部組合斷面圖。 第四圖為本發明中散熱片的放大立體圖。 第五圖為本發明中散熱片的局部斷面圖。 第六圖為習知LED投射燈具的組合立體圖。 【主要元件符號說明】 1 散熱片 2 散熱基座 3 電連接頭 11 第一遮光片 21 底面部 22 嵌槽 4 發熱單元 12 第二遮光片 13 反摺彎部201128131 VI. Description of the Invention: [Technical Field] The present invention relates to an improved design of a heat sink for an LED projection lamp holder, and more particularly to the heat sink using an extended formed light shielding sheet, thereby forming a projection lamp holder for the LED The enclosed blackout wall 'to prevent light leakage, dust and insect proof and increase the heat dissipation area. [Prior Art] Although the conventional LED projection lamp has low power consumption characteristics, the heat resistance of the LED light emitter is very low, so solving the temperature dispersion is an important subject; the heat dissipation lamp holder of the LED projection lamp is known. Some are molded metal heat sinks, which are heavy and the heat dissipation is not as expected. It is cumbersome and costly, so it is not practical. Currently known LED projection lamps also use a plurality of heat sinks to radially surround the cylindrical heat sink base coupled to the lamp holder, and the heat sink base is in contact with a light source composed of LED light emitters. The unit enables the high temperature of the light-emitting unit to pass through the heat-dissipating base and the heat sink for rapid heat dissipation, thereby improving heat dissipation efficiency. The above-mentioned conventional LED projection lamp is surrounded by a plurality of heat sinks, as shown in FIG. 6 'Because a gap A is formed between the heat sinks 10', except that the heat sink base 20 can block part of the light leakage, The rest of the light will still pass out directly from each gap A, so there is a problem of light leakage, and it also causes dust to accumulate inside. It is not only easy to foul LED projection lamps, but also difficult to remove, and because the light will attract the light-flying flying insects, Therefore, the corpse is often adhered to the dirt and it is very troublesome to use. 201128131 The outer sheet 10' is made of metal foil material, so the cloth is sharp and the knife is moon-shaped. It makes the whole lamp all around as if it needs to be improved. Sometimes it is easy to cut the hand because of negligence, still [invention] The invention has the improved design of the main heat sink fin, and the potter provides one less LED 投射 Θ Θ 糸 糸 糸 糸 糸 糸 糸 糸 糸 糸 糸 糸 糸 糸 糸 糸 糸 糸 = = = = = = = = = = Lamp Jinglai =:=: Stop: Light: r dust-proof effect, and increase the heat dissipation by the area of the blackout wall. The gas film = ^ people want the purpose ' is to provide a led projection lamp holder :,. In addition, the outer end faces of the fins are provided with a reverse bent portion to improve the sharp burrs of the fins, so that the outer end faces of the fins are passivated to avoid the cuts of the hands. [Embodiment] The structural features and other functions and purposes of the present invention are described below with reference to the accompanying drawings: a seat; wherein a plurality of heat sinks are provided with at least one first light-shielding sheet - the first light-shielding sheet (10) Forming a vertical integral connection from the body side of the heat sink 1; as shown in the first and second figures, the present invention is a "diffuse film improvement of the led projection lamp holder" mainly by taking a plurality of heat sinks 1 The heat-dissipating base 2 and the electric connection head 3 are combined to form an LED projection lamp which extends on the inner bottom of each heat sink 1 to extend the 201128131 heat-dissipating base 2, which is respectively combined with an electrical connector 3 and a The heat generating unit 4 is locked on the upper end of the heat dissipation base 2, and the heat generating unit 4 is composed of a plurality of LEDs arranged in series, and can be attached to the bottom surface portion 21 of the heat dissipation base 2, and the heat dissipation base The outer ring wall of the seat 2 can be provided with a plurality of adjacent recessed grooves 22 for matching the heat sinks i to be integrated one by one. However, the joint form of the heat sink 1 and the heat sink base 2 is not embedded and fixed. For example, using welding or other bonding hands By the above-mentioned members, each of the fins 1 is surrounded by the diffuse heat base 1 fixed to the lamp holder, and the adjacent first light shielding film u is used to form a closed blackout wall. The lamp holder is protected against light leakage, dust and insects, and the heat dissipation area is increased by the blackout wall to further enhance the heat dissipation effect. Each of the heat sinks 1 and the heat dissipation base 2 form a matching combination of the heat sink base 2. Further, a second light shielding sheet 12 is further added to the adjacent side of the first side. Referring to the fourth figure, the second light shielding sheet 12 is horizontally connected from the body side of the heat sink 1, and constitutes the first The adjacent side of the light-shielding sheet 11 'but the second light-shielding sheet 12 is not necessarily provided, but the circular-diameter specification of the heat-dissipating base 2 is required to be arbitrarily increased or decreased depending on the heat-dissipating base 2 and the loose matching diameter gauge (4). When it is small, in order to avoid other hearts, the second light-shielding sheet 12 can be surrounded by the second light-shielding wall 12, so that the lamp holder can completely prevent light leakage and dust-proof effect, and increase its slack area. As shown in the fifth and sixth figures, the plurality of heat sinks 1 of the present invention may further be provided with a bent portion I3 on the outer (four) surface, whereby each of the scattered wi has a passivated end ©' to improve the heat sink i The sharp raw edges avoid taking the hand when you take ^201128131. The electrical connector 3 or the light-emitting unit 4 of the luminaire on the component is a conventional quantity or an embodiment. The L-position of the illuminating unit 4 is also free to increase or decrease the series. The TM spotlights that make up the two rafts can also be placed on the whole side if necessary: the outside of the surface is matched with a housing seat, so that the outer ring of the heat sink 1 can be bundled, or it can be utilized - simple attack The ring ring is sleeved to fix the outermost edge of the heat sink i for framing and reinforcing the solid addition and subtraction change, and the other reason is that the heat dissipation base 2 of the present invention is further The system may be a hollow or solid soil body 4 to the shape of the moon base 2 and is not limited to a circular tube body. (5) angular, polygonal or other geometric shape of the other cooling base, the same It can be used without any special restrictions; the shape, size, specification or arrangement of the heat sinks 1 can of course be changed appropriately. Therefore, simple changes or equivalent replacement behaviors based on the same technical content are still It should be regarded as a technical model that does not deviate from the case. In summary, the invention can be seen as the "improvement of the heat sink of the LED projection lamp holder", and the structural composition and the application thereof have been in line with the innovation of the new LED, and have been significantly different from the conventional LED projection lamps, and have advanced effects. This respect is praying for and approving patents in accordance with the law. 201128131 [Simple description of the diagram] The first figure is an exploded perspective view of the LED lamp used in the present invention. The second figure is a combined perspective view of the invention applied to an LED lamp. The third figure is a partial combined sectional view of the invention applied to the LED lamp. The fourth figure is an enlarged perspective view of the heat sink in the present invention. Figure 5 is a partial cross-sectional view of the heat sink of the present invention. The sixth figure is a combined perspective view of a conventional LED projection lamp. [Main component symbol description] 1 Heat sink 2 Heat sink base 3 Electrical connector 11 First light shield 21 Bottom portion 22 Insert groove 4 Heat unit 12 Second light sheet 13 Reverse bend