201128129 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種照明燈具’特別是指一種led燈泡。 【先前技術】 近年來，因為LED (light emitting diode，發光二極體）的使用壽命長、 能耗低、節約能源顯著，LED作為光源已廣泛應用於日常生活中。例如目 前已發展出可以直接安裝在普通燈泡插座中的LED燈泡，以取代現有的燈 泡，例如鎢絲燈燈泡。 .目前，市售的LED燈泡包括燈頭、燈罩、鋁基板與安裝固定在鋁基板 上的LED。銘基板的底端固定有銘合金散熱裝置。燈頭固定在銘合金散熱 裝置的底端。燈頭與LED電性連接。燈罩安裝固定在鋁基板的頂端’用以 罩住LED。當啟動LED進行照明時’ LED產生的光線可以透過燈罩照射出 去’達到照明的目的。但是’上述的LED燈泡在運作時，由於LED會產生 大量的熱量，只有通過鋁基板底端的鋁合金散熱裝置將LED產生的熱量即 時地散逸出去，才能為持LED的正常運作，否則會導致LED的使用壽命縮 短’甚至是燒壞’所以現有的LED燈泡一般都會將LED安裝固定在鋁基板 上，並設置鋁合金散熱裝置。然而，鋁基板和鋁合金散熱裝置的重量較大， 而且佔用LED燈泡一定的體積，使得現有的LED燈泡的重量大、體積大與 生產成本高。 另外’ LED燈泡中的LED集中向一個方向發射光線，致使LED燈泡 發光不均勻，在LED燈泡的兩側形成暗區，這也是現有技術的led燈泡所 無法解決的問題。 201128129 有鑑於此，本發明遂針對上述習知技術之缺失，提出一鋪新的哪 燈泡，以有效克服上述之該等問題。 【發明内容】 本發明之纟要目的在提供一種_燈泡，其具有^量小、體積小、生 產成本低、能快速散熱與發光均勻等優點。 為達上述之目的，本發明提供一種LED燈泡，其包括有一燈頭；一燈 罩，其底端係絲固定在麵_端；—安裝固定在燈罩内且與燈頭電性 連接的電路板組件；數個裝設於f路板組件表面上的led ;以及—填充於 燈罩内的混合氣體，其係用以將LED所產生的熱量傳導到咖燈泡外。 底下藉由具體實施例詳加說明，當更容易瞭解本發明之目的、技術内 容、特點及其所達成之功效。 【實施方式】 。月-併參閱第1圖至第4 @，如圖所示，本發明之led燈泡包含有燈 頭卜燈罩2、LED 3和電路板組件4。鮮2底端安伽定在燈頭i的頂 端’使得燈頭1可將燈罩2的開口封閉起來。電路板組件4安裝固定在燈 罩2内，電路板組件4與燈頭1電性連接。 燈罩2内填充有用於將LED 3產生的熱量傳導到燈泡外的混合氣體， 以利用混合氣體作為熱傳遞祕介，快速地將LED 3產生的齡快速散逸 到燈泡外’散熱速度快，有效解決LED 3散熱的問題，延長LED 3的壽命。 而此混合氣體可以是氮氣和氬氣組成的混合氣體，其中，氮氣的氣體 佔混合氣體總體積的30〜90%，氬氣佔混合氣體總體積的1〇〜7〇%。 由於本發明的燈罩内填充有混合氣體，當LED工作照明時，LED會產 201128129 生…量燈罩内的混σ氣體則會因為受熱而上升流動，進而將UD產生的 熱量傳導至燈罩_表面’再由鮮散逸出去。更具體的說，本實施例的 混合氣體為氮氣和氬氣組成的氮氩混合氣體，在較佳實施方式中，氣氯混 合氣體的成分為3〇%氮氣和7〇%氬氣。氮氣能夠快速傳導熱量，氣氣除傳201128129 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a lighting fixture, particularly to a LED bulb. [Prior Art] In recent years, LEDs (light emitting diodes) have been widely used in daily life because of their long service life, low energy consumption, and significant energy saving. For example, LED bulbs that can be directly mounted in conventional bulb sockets have been developed to replace existing bulbs, such as tungsten bulbs. Currently, commercially available LED bulbs include a lamp cap, a lamp cover, an aluminum substrate, and an LED mounted on an aluminum substrate. The bottom end of the base plate is fixed with an alloy heat sink. The lamp cap is attached to the bottom of the alloy heat sink. The lamp cap is electrically connected to the LED. The lamp cover is mounted and fixed at the top end of the aluminum substrate to cover the LED. When the LED is activated for illumination, the light generated by the LED can be illuminated through the lamp cover to achieve the purpose of illumination. However, when the above-mentioned LED bulb is in operation, since the LED generates a large amount of heat, only the heat generated by the LED is dissipated through the aluminum alloy heat sink at the bottom of the aluminum substrate, so that the LED can be normally operated, otherwise the LED will be caused. The service life is shortened 'even burned out', so the existing LED bulbs generally mount the LEDs on the aluminum substrate and set the aluminum alloy heat sink. However, the aluminum substrate and the aluminum alloy heat sink have a large weight and occupy a certain volume of the LED bulb, so that the existing LED bulb has a large weight, a large volume, and a high production cost. In addition, the LEDs in the LED bulb concentrate to emit light in one direction, causing the LED bulb to emit uneven light, forming dark areas on both sides of the LED bulb, which is also a problem that cannot be solved by the prior art LED bulb. In view of the above, the present invention proposes a new light bulb to overcome the above-mentioned problems in view of the above-mentioned shortcomings of the prior art. SUMMARY OF THE INVENTION An object of the present invention is to provide a light bulb which has the advantages of small amount, small volume, low production cost, rapid heat dissipation and uniform light emission. In order to achieve the above object, the present invention provides an LED bulb comprising a lamp cap; a lamp cover having a bottom end wire fixed to the face end; a circuit board assembly mounted in the lamp cover and electrically connected to the lamp cap; a led light mounted on the surface of the f-plate assembly; and a mixed gas filled in the lamp cover for conducting heat generated by the LED to the outside of the coffee bulb. The details, technical contents, features, and effects achieved by the present invention will become more apparent from the detailed description of the embodiments. [Embodiment] Month - and referring to Figures 1 through 4 @, as shown, the LED bulb of the present invention comprises a lampshade 2, an LED 3 and a circuit board assembly 4. The bottom end of the fresh 2 is placed at the top end of the base i such that the base 1 can close the opening of the cover 2. The circuit board assembly 4 is mounted and fixed in the lamp cover 2, and the circuit board assembly 4 is electrically connected to the lamp cap 1. The lampshade 2 is filled with a mixed gas for conducting the heat generated by the LED 3 to the outside of the bulb, so as to quickly dissipate the age generated by the LED 3 to the outside of the bulb by using the mixed gas as a heat transfer secret. The problem of LED 3 heat dissipation extends the life of LED 3. The mixed gas may be a mixed gas of nitrogen and argon, wherein the gas of nitrogen accounts for 30 to 90% of the total volume of the mixed gas, and the argon gas accounts for 1 to 7 % of the total volume of the mixed gas. Since the lampshade of the present invention is filled with a mixed gas, when the LED is operated to illuminate, the LED will produce 201128129. The mixed σ gas in the lampshade will rise and flow due to heat, and then the heat generated by the UD will be transmitted to the lampshade_surface. Then escape from the fresh. More specifically, the mixed gas of the present embodiment is a mixed gas of nitrogen and argon composed of nitrogen and argon. In a preferred embodiment, the composition of the gas-chlorine mixed gas is 3 % nitrogen and 7 % by argon. Nitrogen can quickly conduct heat, and the gas is removed.
導熱量的功之外’氬氣更重要的功能是增加LED燈的亮度，它使LED .燈具有更大的冗度’而且LED發出的光線柔和不刺眼。本實施例所述的氮 氬混合氣體可以較快地將LED 3產生的熱量傳導給燈罩2，再由燈罩2散 _逸出去。當然’所述魏氬混合氣體也可以採料它的混合錄，只要其 具有熱量傳導作用即可。 當然所述混合氣體亦可以為氮氣、氬氣、氛氣、氮氣或氣氣中的一種。 或者，此混合纽縫氣、統、絲、_和二氧化雜成的混合 氣體。於較佳的實施例方式中，所軌氣、氩氣、氪氣、聽和二氧化碳 在在σ氣體總體積中的比例分別為：氮氣佔混合氣體總體積的;氮氣 佔混合氣體總體積的25% ;氪氣佔混合氣體總體積的15% ;氣氣佔齡氣 體總體積的5%，二氧化碳佔混合氣體總體積的。 上述實施方式概實現本發目的，並細本發明所述醜期效果。 具體地’電路板組件4為縱橫交錯的兩塊印刷電路板所構成。每塊印 刷板的正絲背面分解個定LED3。祕腳3設置在縱橫交錯 設置的印刷電路板上，因此各個方向都安裝有㈣，所以各方向都有led 發射的光線，使得LED燈泡在發光時更佳均勻，解決了現有LED燈泡發光 不均勻與在照明時存在暗區的問題。 本實施例中，電路板組件4係由兩塊縱橫交錯成十字形狀的印刷電路 201128129 板所構成’錢電路板組件4具有更㈣向獨方向的平面來供安裝咖 3。當然，所述電路板組件4亦可以由三塊或者四塊印刷電路板來交錯構成， 以使電路板組件4具有更多朝向不同方向的平面供安裝LED 3。 本實施例的LED 3可以是貼収LED ’因為貼以LED的體積小， 而且工作時產生的熱量較少’可以進-步減少LED燈泡的重量和體積。者 然，所述的LED 3也可以獅其它形柄咖，妨舰於本實施例所^ 用的貼片式LED。 電路板組件4設有整流模組6。整流模組6的輸入端&與燈頭i的交流 輸入端連接，LED 3串聯連接在整流· 6的正極輸出端和貞極輸出端之 間。 本實施例的燈罩2為透明玻璃氣密罩，可以讓咖3發出的光線照射 出去，達到照明的目的。當然，為了達到不同的照明效果，燈罩2也可以 採用其它顏色的燈罩’例如乳白色。糾，需要的是，燈罩2的形狀 可以是尖頂形狀、球狀、橢圓狀或其它形狀。稀於本實施例所選用的尖 頂形狀。 本實施例的電路板組件4上設有整流模組6。整流模組6的輸入端與燈 頭i的交流輸人端連接，LED 3串聯連接在整流模組6的正極輸出端與負 極輸出端之間。更具體的說，複數個哪3同向㈣連接，組成燈串，其 中，燈串正極的-端與整賴組6的正極連接，燈“極的—端與整流模 組6的負極連接’其卫作原理是：整流模組6將燈頭1輸人的交流電整流 為直/，_L電，以提供電源給複數個LED 3。 使用本發明，可以取代現有的鎢絲鲜燈泡，燈頭i可以直接插接在 201128129 現有的普通燈泡插座中，自交流電供電。#LED 3工作照明時，燈罩2内 的混合氣體因為受熱而上升流動，以將LED 3產生的熱量傳導致燈罩二的 内表面，再由燈罩2散發出去。與現有的LED燈泡相比，本發明無需安裝 重量較大的减板和!g合金散紐置，即可將LED 3產生的熱量散逸出 去，而且組裝生產過程簡單，因此，本發明具有重量小、體積小與生產成 . 本低等特點。 唯以上所述者，僅為本發明之較佳實施例而已，並非用來限定本發明 •實施之範圍。故即凡依本發明申請範圍所述之特徵及精神所為之均等變化 或修飾，均應包括於本發明之申請專利範圍内。 【圖式簡單說明】 第1圖為本發明的結構示意圖。 第2圖為本發明的電路板的結構示意圖❶ 第3圖為本發明的電路板另一視角的結構示意圖。 第4圖為本發明的電路板的分解示意圖。 • 【主要元件符號說明】 1 燈頭 2 燈罩In addition to the work of the heat conduction, the more important function of argon is to increase the brightness of the LED lamp, which makes the LED lamp have more redundancy, and the light emitted by the LED is soft and not glare. The nitrogen-argon mixed gas described in this embodiment can conduct the heat generated by the LED 3 to the lamp cover 2 relatively quickly, and then escapes from the lamp cover 2. Of course, the Wei-argon mixed gas can also be mixed with it as long as it has a heat conduction effect. Of course, the mixed gas may also be one of nitrogen, argon, atmosphere, nitrogen or gas. Alternatively, the mixed gas is a mixed gas of gas, system, wire, _ and dioxide. In a preferred embodiment, the ratio of the orbital gas, argon gas, helium gas, audition, and carbon dioxide in the total volume of the σ gas is: nitrogen accounts for the total volume of the mixed gas; and nitrogen accounts for 25 of the total volume of the mixed gas. %; helium accounts for 15% of the total volume of the mixed gas; gas accounts for 5% of the total volume of the gas, and carbon dioxide accounts for the total volume of the mixed gas. The above embodiment achieves the object of the present invention and details the ugly effect of the present invention. Specifically, the circuit board assembly 4 is constructed of two printed circuit boards that are criss-crossed. The back side of the silk of each printed board is decomposed into a predetermined LED3. The secret foot 3 is arranged on the printed circuit board which is arranged criss-crossed, so that (4) is installed in all directions, so the light emitted by the LED is emitted in all directions, so that the LED light bulb is better and even when illuminated, and the uneven illumination of the existing LED light bulb is solved. There is a problem with dark areas when lighting. In the present embodiment, the circuit board assembly 4 is composed of two printed circuits which are criss-crossed into a cross shape. The structure of the board is formed by the board. The money board assembly 4 has a more (four) direction to the direction of the installation. Of course, the circuit board assembly 4 can also be staggered by three or four printed circuit boards so that the circuit board assembly 4 has more planes oriented in different directions for mounting the LEDs 3. The LED 3 of the present embodiment can be a sticker LED ’ because the LED is small in size and generates less heat during operation, and the weight and volume of the LED bulb can be further reduced. However, the LED 3 can also be used as a stalk type LED for the lion. The circuit board assembly 4 is provided with a rectifying module 6. The input terminal & of the rectifier module 6 is connected to the AC input terminal of the lamp cap i, and the LED 3 is connected in series between the positive output terminal of the rectification ·6 and the drain output terminal. The lampshade 2 of this embodiment is a transparent glass airtight cover, which can illuminate the light emitted by the coffee 3 to achieve the purpose of illumination. Of course, in order to achieve different lighting effects, the lampshade 2 can also be used in other color shades such as milky white. Correction, it is required that the shape of the lampshade 2 may be a pointed shape, a spherical shape, an elliptical shape or the like. The shape of the tip selected for this embodiment is dilute. The circuit board assembly 4 of the embodiment is provided with a rectifying module 6. The input end of the rectifier module 6 is connected to the AC input end of the lamp head i, and the LED 3 is connected in series between the positive output end and the negative output end of the rectifying module 6. More specifically, a plurality of 3 are connected in the same direction (four) to form a light string, wherein the positive end of the light string is connected to the positive pole of the whole set 6 and the "pole end of the light is connected to the negative pole of the rectifier module 6". The utility principle is that the rectifying module 6 rectifies the alternating current input from the lamp cap 1 into a straight/, _L electric power to provide power to a plurality of LEDs 3. With the invention, the existing tungsten neon bulb can be replaced, and the lamp head i can Directly plugged in the existing ordinary bulb socket of 201128129, powered by AC. #LED 3 working illumination, the mixed gas in the lampshade 2 rises due to heat, so that the heat generated by the LED 3 is transmitted to the inner surface of the lampshade 2, The lamp cover 2 is dissipated. Compared with the existing LED bulb, the present invention can dissipate the heat generated by the LED 3 without installing a heavy-weight reduction plate and a .g alloy loose-band, and the assembly process is simple. Therefore, the present invention has the characteristics of small weight, small volume, and low production. The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. According to this The features and spirits described in the scope of the application are equally varied or modified, and are included in the scope of the patent application of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view of the structure of the present invention. Schematic diagram of the circuit board of the circuit board Fig. 3 is a schematic structural view of the circuit board of the present invention from another perspective. Fig. 4 is an exploded perspective view of the circuit board of the present invention. • [Description of main components] 1 lamp cap 2 lampshade
• 3 LED - 4 電路板組件 6 整流模組• 3 LED - 4 board assembly 6 rectifier module