五、新型說明： 【新型所屬之技術領域】 [0001]本創作係有關於一種LEDUighi emitting diode，發 光二極體）燈泡’尤指一種可產生背面投射的LED燈泡。 【先前技術】 [〇〇〇2]發光二極體（Light Emitting Diode, LED)具有低耗 能、省電、使用壽命長、體積小、反應快等特點，已逐 步取代傳統燈泡而廣泛應用各種照明燈具或發光裝置中 〇 [0003] f知的LED燈泡主要包括：一燈頭、連接至燈頭的一座體 、安裝於座體内並電性連接至燈頭的一LED模組' 連接於 座體周圍的一散熱罩、及罩蓋於LED模組上的-燈罩；其 中燈罩是由透光材料製成，致使㈣模組所發出的光線可 以穿透此燈罩而提供照明；散熱罩朝座體周圍外部延伸 出多數散熱鰭片，藉此增加散熱面積以便將LED模組所產 生的熱量散逸到外部。 [0004] 然而，實際上，上述習知的[ED燈泡仍具有一些問題。由 於燈罩並未設有穿孔而使部分光線不易穿透，導致朝燈 頭周圍投射的光線量很低，再加上散熱罩凸出於座體外 ’所以此少量朝燈頭照射的光線完全被散熱罩擋住而無 法在燈頭周圍產生光影，而僅能夠正向穿透燈罩而在一 定角度範圍内向下照射；因此，在需要LED燈泡額外具有 背面朝上投射光影的裝飾用途時，習知的LED燈泡顯然無 法勝任》 表單編號A0101 第3頁/共15頁 M381724 [0005] '另一方面，在習知的LED燈泡中，燈罩僅作為透光之用， 並無任何散熱效果，因此，在長期使用之後，燈罩的溫 度很高，使用者不小心觸摸會被燙傷，而且燈罩内的高 溫也會影響LED模組的壽命。因此，倘若燈罩也能夠具有 一部份散熱效果的話，則可配合散熱罩產生更佳的散熱 效果。 [0006] 因此，如何解決上述之問題點，即成為本創作人所改良 之目標。 【新型内容】 [0007] 本創作之一目的，在於提供一種可產生背面投射的LED燈 泡，其能夠額外提供背面朝上的投射光影，以達到照明 與裝飾的雙重效果。 [0008] 本創作之另一目的，在於提供一種可產生背面投射的LED 燈泡，其燈罩不僅能透光，還具有一部份的散熱效果。 [0009] 為了達成上述之目的，本創作係提供一種可產生背面投 射的LED燈泡，包括：一座體，包含一燈頭及連接該燈頭 的一散熱框架；一LED模組，設置於該散熱框架内部並電 性連接該燈頭；；以及一光投射結構，包含罩蓋於該LED 模組上並與該散熱框架對應結合的一透光燈罩、及環設 於該透光燈罩上的多個穿孔，其中該LED模組所發出的一 部份光線直接穿透該透光燈罩，另一部份光線則被該透 光燈罩反射而通過該等穿孔以朝向該燈頭周圍投射。 [0010] 相較於先前技術，本創作具有以下功效： [0011] 由於本創作的透光燈罩設有多個穿孔，因此LED模組所發 表單编號A0101 第4頁/共15頁 出的—部份光線能夠輕易穿過這些穿孔’所以，其朝上 投射的光影相當明顯，因此除了正面朝下投射的照明功 能之外，還具有背面朝上投射的裝飾用途。 [0012] 由於本創作的透光燈罩設有多個穿孔，這些穿孔不僅作 為光線穿透之用’也可供外部空氣自由流通，而產生— 部份的散熱效果’藉此降低透光燈罩本身及内部的溫度 ，同時可延長透光燈罩内部的led模組的使用壽命。 【實施方式】 [0013] 有關本創作之詳細說明及技術内容，將配合圖式說明如 下，然而所附圖式僅作為說明用途，並非用於侷限本創 作。 [0014] 請參考第一圖，係為本創作之立體分解圖，本創作係提 供一種可產生背面投射的LED燈泡，此LED燈泡1主要包括 :—座體10、一LED模組20、及一透光燈罩30。 [0015] 座體10包含一燈頭11及連接該燈頭11的一散熱框架12， 燈頭11呈圓柱狀且具有外螺紋，用以螺接至天花板4〇所 設置的一燈座50内（第五圖），座體1〇内部具有分別電性 連接至燈頭11及LED模組20的多個電子元件13(例如，變 壓器）；而且’座體10内部還設置有導熱構件14，用以將 LED模組20所產生的熱量傳導至散熱框架12上，進而散逸 至外部。由於座體1〇内的電子元件13及導熱構件14並非 本創作的技術特徵且屬於習知，故此省略其相關說明以 免贅述》 [0016] 散熱框架丨2是由高導熱性金屬材料製成，且大致上從座 表單编號A0101 第5頁/共15頁 M381724 體l〇的中段處朝外延伸；在本創作的實施例中，散熱框 架12開設有多數縱向狹長的散熱孔丨21，藉由這些散熱孔 121，外部空氣可以輕易地進出散熱框架丨2而將散熱框架 12上的熱量帶至外部》 [0017] LED模組20包含多個LED 21及供該等LED 21佈設的__電 路板22，在第一圖所示的實施例中，LED模組2〇具有五個 LED 21 ’但其數罝及排列方式並未偈限於此。電路板22 呈圓板狀’整個LED模組20係設置於散熱框架12内部並電 性連接至煃頭11，電路板22遠離LED 21的另一表面連接 有導熱構件14，用以將LED模組20所產生的熱量傳導至散 熱框架12上’進而散逸到外部，藉此使LED模組20的操作 溫度保持在允許的範圍内，以維持LED模組20的正常運作 〇 [0018] 透光燈罩30是由透光材料製成，以便讓LED 21所發出的 光線從該處穿透出去提供照明，透光燈罩20對應於散熱 框架12而被製作成半圓球狀；透光燈罩30的内部成型有 一環形壁31，環形壁31亦由透光材料製成，致使LED 21 所發出的光線可以穿透此環形壁31 ;此環形壁31的外徑 略大於LED模組20的電路板22的外徑，藉此，從第四圖可 以清楚看出，當透光燈罩30罩蓋於LED模組20上時’環形 壁31可以確實包圍LED模組20免受外部灰塵或水氣的影響 〇 [0019] 透光燈罩30的周緣環設有多個穿孔32，在本創作的實施 例中，這些穿孔32呈橢圓形且分別對齊散熱框架I2的散 熱孔121，而且，穿孔32開設於接近透光燈罩30與散熱框 表單編號A0101 第6頁/共15頁 架12的結合處。因此，在本創作的實施例中，透光燈罩 30及穿孔32均能夠使光線穿透出去，因此兩者共同組成 一光投射結構。 [0020] 透光燈罩30的外緣具有多個卡勾33(在第一圖中為三個） ，這些卡勾3 3係朝外勾扣對應散熱孔121的邊緣，藉此使 透光燈罩30能夠與散熱框架12對應結合。 [0021] 參考第四圖，LED 21所發出的一部份光線係直接穿透此 透光燈罩3 0，而另一部份的光線則穿過環形壁31而到達 透光燈罩30 ;由於此部分的光線相對於透光燈罩30的入 射角大於折射角，所以無法:穿過透光燈罩30，而是被透 光燈罩30反射出去；穿孔32的位置係經由光學原理設計 而能夠讓這些反射光線順利穿出，所以能夠使LED 21所 發出的光線有一#份經反射後朝燈頭11周圍投射，而形 成如第五圖所示的朝上投射光影。因此，如第五圖所示 ，本創作的LED燈泡1不僅具有正向朝下照射的光線之外 ，而且還具有背面朝上投射的光線，這些背面朝上投射 的光線照射在天花板40上則形成圍繞在LED燈泡1周圍的 一圈光環，因而產生出良好的裝飾效果。可以想像得到 ，當將本創作的LED燈泡1安裝於天花板40時，可同時產 生照明及裝飾的雙重效果。 [0022] 值得一提的是，為防止從穿孔32穿透出去的光線被散熱 框架12擋住而無法順利投影至燈頭11的周圍，所以，散 熱框架12在遠離透光燈罩30的方向上呈漸縮狀，如此一 來，將不會妨礙光線的行進。 表單編號A0101 第7頁/共15頁 [0023]M381724 [0024] [0025] [0026] [0027] [0028] [0029] [0030] [0031] [0032] [0033] [0034] 表單編號A0101 另一方面，由於本創作的透光燈罩30設有多個穿孔32， 這些穿孔32不僅作為光線穿透之用，也可供外部空氣自 由流通，而產生一部份的散熱效果，藉此降低透光燈罩 30本身及内部的溫度，同時可延長環形壁31内所包圍的 LED模組20的使用壽命。 綜上所述，當知本創作之「可產生背面投射的LED燈泡」 已具有產業利用性、新穎性與進步性，又本創作之構造 亦未曾見於同類產品及公開使用，完全符合新型專利申 請要件，爰依專利法提出申請。 【圖式簡單說明】 第一圖係本創作之分解立體圖。 第二圖係本創作的透光燈罩的立體圖。 第三圖係本創作之組合立體圖。 第四圖係本創作之組合剖面圖。 第五圖係本創作之使用狀態圖，其顯示具有正向朝下照 射及朝上投射的光線。 【主要元件符號說明】 1 LED燈泡 10座體 11燈頭 12散熱框架 121散熱孔 第8頁/共15頁 M381724V. New Description: [New Technology Field] [0001] This creation is about an LEDUighi emitting diode, which is a kind of LED bulb that can produce rear projection. [Prior Art] [〇〇〇2] Light Emitting Diode (LED) has the characteristics of low energy consumption, power saving, long service life, small size, fast response, etc. It has gradually replaced traditional light bulbs and is widely used in various applications. In the lighting fixture or the illuminating device, the LED bulb mainly includes: a lamp cap, a body connected to the lamp cap, an LED module mounted in the body and electrically connected to the lamp cap, and connected around the seat body a heat-dissipating cover and a lamp cover covering the LED module; wherein the lamp cover is made of a light-transmitting material, so that light emitted by the (4) module can penetrate the lamp cover to provide illumination; the heat-dissipating cover is disposed around the body Most of the heat dissipation fins are externally extended, thereby increasing the heat dissipation area to dissipate the heat generated by the LED module to the outside. [0004] However, in fact, the above-mentioned conventional [ED bulbs still have some problems. Since the lampshade is not provided with perforations, some of the light is not easily penetrated, resulting in a low amount of light projected around the lamp cap, and the heat-dissipating cover protrudes out of the body. Therefore, a small amount of light that is directed toward the lamp cap is completely blocked by the heat-dissipating cover. It is impossible to produce light and shadow around the lamp cap, but only can penetrate the lamp cover in the forward direction and illuminate downward within a certain angle range; therefore, the conventional LED light bulb obviously cannot be used when the LED light bulb is required to have an additional decorative effect with a back-up projection light. Competency" Form No. A0101 Page 3 of 15 M381724 [0005] On the other hand, in the conventional LED bulb, the lampshade is only used for light transmission, and does not have any heat dissipation effect. Therefore, after long-term use, The temperature of the lampshade is very high, and the user may be burnt if accidentally touched, and the high temperature inside the lampshade also affects the life of the LED module. Therefore, if the lamp cover can also have a part of the heat dissipation effect, it can be combined with the heat dissipation cover to produce a better heat dissipation effect. [0006] Therefore, how to solve the above problems becomes the goal of improvement by the present creator. [New Content] [0007] One of the purposes of this creation is to provide an LED bulb that produces rear projection, which can additionally provide a back-up projection light to achieve the dual effects of illumination and decoration. Another object of the present invention is to provide an LED light bulb capable of generating a rear projection, the lampshade not only transmitting light, but also having a part of heat dissipation effect. [0009] In order to achieve the above object, the present invention provides an LED bulb capable of generating a rear projection, comprising: a body comprising a lamp cap and a heat dissipation frame connecting the lamp cap; and an LED module disposed inside the heat dissipation frame And electrically connecting the lamp cap; and a light projection structure, comprising: a light-transmitting lamp cover covering the LED module and correspondingly coupled to the heat-dissipating frame; and a plurality of perforations disposed on the light-transmitting lamp cover A portion of the light emitted by the LED module directly penetrates the light-transmitting cover, and another portion of the light is reflected by the light-transmitting cover and passes through the through holes to project toward the periphery of the lamp. [0010] Compared with the prior art, the present invention has the following effects: [0011] Since the light-transmitting lamp cover of the present invention is provided with a plurality of perforations, the single-numbered A0101 of the LED module is published on page 4 of 15 pages. - Some of the light can easily pass through the perforations', so the light shadow that is projected upwards is quite obvious, so in addition to the illumination function that is projected face down, it also has the decorative use of the back-up projection. [0012] Since the light transmissive lampshade of the present invention is provided with a plurality of perforations, these perforations are not only used for light penetration, but also for free circulation of external air, and generate a part of the heat dissipation effect, thereby reducing the translucent lampshade itself. And the internal temperature, at the same time can extend the service life of the LED module inside the light-transmitting lampshade. [Embodiment] [0013] The detailed description and technical contents of the present invention will be described below with reference to the drawings, but the drawings are for illustrative purposes only and are not intended to limit the present invention. [0014] Please refer to the first figure, which is an exploded perspective view of the present invention. The present invention provides an LED bulb capable of generating a rear projection. The LED bulb 1 mainly includes: a base 10, an LED module 20, and A light transmissive cover 30. [0015] The base 10 includes a base 11 and a heat dissipation frame 12 connected to the base 11. The base 11 has a cylindrical shape and has an external thread for screwing into a socket 50 provided by the ceiling 4 (fifth) The inside of the base 1 has a plurality of electronic components 13 (for example, transformers) electrically connected to the lamp cap 11 and the LED module 20, respectively; and the inside of the base 10 is further provided with a heat conducting member 14 for LEDs. The heat generated by the module 20 is conducted to the heat dissipation frame 12, thereby being dissipated to the outside. Since the electronic component 13 and the heat conductive member 14 in the body 1 are not the technical features of the present invention and are conventionally known, the related description is omitted to avoid the description. [0016] The heat dissipation frame 丨 2 is made of a highly thermally conductive metal material. And extending substantially outward from the middle section of the seat form number A0101, page 5 of the M381724 body; in the embodiment of the present invention, the heat dissipation frame 12 is provided with a plurality of longitudinally elongated heat dissipation holes 21, From the heat dissipation holes 121, the outside air can easily enter and exit the heat dissipation frame 丨2 to bring the heat on the heat dissipation frame 12 to the outside. [0017] The LED module 20 includes a plurality of LEDs 21 and __ for the LEDs 21 to be laid. The circuit board 22, in the embodiment shown in the first figure, has two LEDs 21', but the number and arrangement thereof are not limited thereto. The circuit board 22 is in the shape of a disk. The entire LED module 20 is disposed inside the heat dissipation frame 12 and electrically connected to the hoe 11 . The other surface of the circuit board 22 away from the LED 21 is connected with a heat conducting member 14 for modulating the LED module. The heat generated by the group 20 is conducted to the heat dissipation frame 12 and is then dissipated to the outside, thereby maintaining the operating temperature of the LED module 20 within an allowable range to maintain the normal operation of the LED module 20 [0018] The lampshade 30 is made of a light transmissive material to allow the light emitted by the LED 21 to penetrate out therefrom to provide illumination. The translucent lampshade 20 is formed into a semi-spherical shape corresponding to the heat dissipation frame 12; the interior of the translucent lampshade 30 An annular wall 31 is formed, and the annular wall 31 is also made of a light transmissive material, so that the light emitted by the LED 21 can penetrate the annular wall 31; the outer diameter of the annular wall 31 is slightly larger than the circuit board 22 of the LED module 20. The outer diameter, by which it can be clearly seen from the fourth figure, when the light-transmitting lamp cover 30 is covered on the LED module 20, the annular wall 31 can surely surround the LED module 20 from external dust or moisture. [0019] The peripheral ring of the transparent lampshade 30 is provided with a plurality of perforations 32, In the embodiment of the present invention, the through holes 32 are elliptical and respectively aligned with the heat dissipation holes 121 of the heat dissipation frame I2, and the through holes 32 are opened close to the light shielding cover 30 and the heat dissipation frame form number A0101, page 6 / total 15 page frame 12 The junction. Therefore, in the embodiment of the present invention, the light-transmitting cover 30 and the perforations 32 are capable of penetrating light, so that the two together constitute a light-projecting structure. [0020] The outer edge of the light-transmitting lamp cover 30 has a plurality of hooks 33 (three in the first figure), and the hooks 3 3 are outwardly hooked to the edges of the corresponding heat dissipation holes 121, thereby making the light-transmitting lampshade 30 can be combined with the heat dissipation frame 12. [0021] Referring to the fourth figure, a part of the light emitted by the LED 21 directly penetrates the light-transmitting cover 30, and another part of the light passes through the annular wall 31 to reach the transparent cover 30; The incident angle of the portion of the light relative to the light-transmitting cover 30 is greater than the angle of refraction, so that it cannot pass through the transparent cover 30 but is reflected by the transparent cover 30; the position of the perforation 32 is optically designed to allow these reflections. The light is smoothly passed out, so that one of the light rays emitted from the LED 21 can be reflected and projected toward the periphery of the base 11, thereby forming an upwardly projected light as shown in FIG. Therefore, as shown in the fifth figure, the LED bulb 1 of the present invention has not only the light that is irradiated toward the downward direction but also the light that is projected upward from the back, and the light that is projected upward from the back is irradiated on the ceiling 40. A ring of aura around the LED bulb 1 is formed, thus producing a good decorative effect. It is conceivable that when the LED bulb 1 of the present invention is mounted on the ceiling 40, both the illumination and the decoration can be simultaneously produced. [0022] It is worth mentioning that, in order to prevent the light penetrating from the through hole 32 from being blocked by the heat dissipation frame 12 and being unable to be smoothly projected to the periphery of the lamp cap 11, the heat dissipation frame 12 is gradually inclined away from the light transmission cover 30. Shrinking, as such, will not hinder the travel of light. Form No. A0101 Page 7 of 15 [0023] M381724 [0024] [0028] [0028] [0030] [0033] [0033] Form number A0101 On the other hand, since the translucent lampshade 30 of the present invention is provided with a plurality of perforations 32, these perforations 32 serve not only as light penetration but also freely circulate outside air, thereby generating a part of the heat dissipation effect, thereby reducing The temperature of the light-transmitting lamp cover 30 itself and the inside thereof can also extend the service life of the LED module 20 enclosed in the annular wall 31. In summary, when the "LED bulbs that can produce rear projections" of Zhiben's creations have industrial applicability, novelty and progressiveness, the structure of this creation has not been seen in similar products and public use, and fully complies with the new patent application. The requirements are based on the patent law. [Simple description of the diagram] The first diagram is an exploded perspective view of the creation. The second figure is a perspective view of the translucent lampshade of the present invention. The third picture is a combined perspective view of the creation. The fourth picture is a combined sectional view of the creation. The fifth figure is a state diagram of the use of the present invention, which shows light having a positive downward illumination and an upward projection. [Main component symbol description] 1 LED bulb 10 seat body 11 base 12 heat dissipation frame 121 heat dissipation hole Page 8 of 15 M381724
[0035] 13 電子元件 [0036] 14 導熱構件 [0037] 20 LED模組 [0038] 21 LED [0039] 22 電路板 [0040] 30 透光燈罩 [0041] 31 環形壁 [0042] 32 穿孔 [0043] 33 卡勾 [0044] 40 天花板 [0045]. 50 燈座 表單編號A0101 第9頁/共15頁13 Electronic component [0036] 14 Thermally conductive member [0037] 20 LED module [0038] 21 LED [0039] 22 Circuit board [0040] 30 Translucent lampshade [0041] 31 Ring wall [0042] 32 Perforation [0043 ] 33 Hook [0044] 40 Ceiling [0045]. 50 Lamp Holder Form No. A0101 Page 9 of 15