M359640 五、新型說明： 【新型所屬之技術領域】 本新型是有關於一種照明裝置，且特別是#_ —種發光 極體照明裝置。 【先前技術】 發光二極體’因其低功率消耗與低污染特性，而漸漸被應 用於照明設備。其中，為了使發光二極體照明設備能夠搭配傳 統的日光燈燈座，吾人莫不致力於發光二極體與日光燈管之結 合。 然而，以發光二極體取代曰光燈管時，首先面臨的問題便 在於廢熱的排除；其次’當多顆發光二極體中有—小部分故障 時，如何使故障的發光二極體不影響驅動電路之運行，亦至關 重要。 【新型内容】 因此，本新型之一技術態樣是在提供一種發光二極體燈管裝 置，用以兼具良好的散熱能力與驅動電路強健性。 根據本新型之一實施方式，提出一種發光二極體燈具，其 包括一電路板、一定電流驅動電路及多個發光二極體負載。其 中，定電流驅動電路至少包括—交流轉直流電路、—高壓轉低 壓電路以及n：流電路。交流轉直流電路係用以將一市電轉 換為一直流電，進而供應給上述發光二極體負載。高壓轉低壓 電路係用以將直流電轉換為一直流低壓電，而定電流電路則一 端接收直流低壓電，另一端電性連接上述發光二極體負載，以 3 M359640 ： 控制發光二極體負載之功率。 其中，定電流電路至少包括一比較器以及一電晶體。比較 器之正輸入端接收直流低壓電，比較器之負輸入端電性連接電 曰曰體之輸出端；電晶體之輸入端電性連接發光二極體負載，電 晶體之控制端則電性連接比較器之輸出端。此外，發光二極體 負載可為一串並聯式架構，亦即數顆發光二極體彼此並聯成 組，各組再互相串連。 根據本新型之上述技術態樣，更提出一種發光二極體燈管 _ 裝置，至少包含一燈管、一门字型散熱座、一電路板、一定電 流驅動電路以及多個發光二極體負載。燈管具有一長條狀溝 槽；门字型散熱座具有一底部及兩散熱翼板，兩散熱翼板外側 卡合於長條狀溝槽，底部則延伸至燈管外。電路板容設於兩散 熱翼板之間；發光二極體負載設置於電路板朝向燈管的一側； 定電流驅動電路則設置於電路板朝向门字型散熱座的一側，以 定電流驅動發光二極體負載。 藉此’本新型之發光二極體燈管裝置可利用大面積之门字 Φ 型散熱座來順利排除廢熱，亦同時利用定電流電路，使負載端 達到穩壓穩流的效果，並透過串並聯式的發光二極體負載，提 升產品而f用度。 【實施方式】 請參照第1圖，其係為本新型一實施方式之定電流驅動電 路之功能方塊圖，為方便解釋，圖中亦繪示發光二極體負載 200。定電流驅動電路100至少包括一交流轉直流電路11〇、一 高壓轉低壓電路120以及一定電流電路13〇。交流轉直流電路 4 M359640 110係用以將一市電轉換為一直流電，進而供應給發光二極體 負載200。具體而言，交流轉直流電路丨丨〇包含一整流子，例 如橋式整流子，及一電容以濾除漣波。高壓轉低壓電路12()係 用以將直流電轉換為一直流低壓電，而定電流電路丨3〇則一端 接收直流低壓電，另一端電性連接發光二極體負載2〇〇，以控 制發光二極體負載200之功率。 請參照第2圖’其係為本實施方式之發光二極體負載之結 構示意圖。為了避免發光二極體負載2〇〇因其中少數幾顆發光 二極體故障，而影響定電流驅動電路1〇〇整體之運行，發光二 極體負載200較佳可為多組串並聯發光二極體負載21〇。舉例 而言’當串並聯發光二極體負載22〇其中一顆發光二極體故障 時’電流亦仍可流經此串並聯發光二極體負載22〇而不會出現 斷路故障。此外，串並聯發光二極體負載21〇與串並聯發光二 極體負載220之間都是獨立的驅動迴路。 請參照第3圖，其係為本實施方式之定電流驅動電路之詳 細電路圖。圖中，高壓轉低壓電路丨2〇包括一降壓電路121及 一分壓電路122。降壓電路121輸出一工作電壓給定電流電路 13 0，再利用分壓電路122取得一低壓直流電ν 1給定電流電路 130。當然’吾人亦可利用簡單之電路設計，例如脈波寬度調 變晶片（PWM)同時輸出一工作電壓與一低壓直流電V1給定電 流電路130，而無須透過分壓電路122。定電流電路13〇至少 包括一比較器131以及一電晶體132。比較器131之正輸入端 接收直流低壓電VI’比較器131之負輸入端則電性連接電晶體 U2之輸出端。電晶體132之輸入端電性連接一組串並聯發光 二極體負載210，電晶體132之控制端則電性連接比較器131 之輸出端。依此類推，另一組串並聯發光二極體負載22〇亦以 5 M359640 相同之架構掛載於另一顆電晶體上。 藉此，由於比較器131與電晶體132形成負回授，參考電 壓V2會相等於低壓直流電VI，因而使電晶體132上方之串並 聯發光二極體負载21〇呈現穩定電流驅動狀態。換句話說，由 於比較器131之輸出端穩定輸出一電流，因而使電晶體132亦 穩定控制流經串並聯發光二極體負載21〇之電流，進而達到定 電流之效果。當然，電晶體132可為一電流控制之雙載子接面 電曰曰體（B JT) ’亦可為一電壓控制之場效電晶體（(fet)。 值得一提的是，降壓電路121可利用矽控整流子（ScR)、 脈波頻率調變晶片（PFM)或脈波寬度調變晶片（pWM)等方式來 實現之，但亦不以此為限；於本技術領域中具有通常知識者， 可套用其他具降壓功能之電路，而亦不脫出本新型之範疇。然 而，本新型更於一實施方式中，建議採用線性降壓電路以實現 降壓電路12卜具體而言，上述矽控整流子（SCR)、脈波頻率調 變晶片（PFM)或脈波寬度調變晶片（PWM)等方式係屬利用切換 電路來調節電晶體開關的時脈，進而達到定電流驅動之目的。 其衍生的缺點如下： 第一、電源端的持續性切換造成較高的雜訊輸出。 第二、此切換電路需要較大功率的二極體與電感等元件相 配合，因而產生較高的體積需求與成本。 因此，本實施方式建議使用線性降壓電路來實現降壓電路 121’進而使本實施方式之高壓轉低壓電路12〇成為一線性高 壓轉低壓電路。亦即，本實施方式將市f的高電壓轉為直流電 壓之後，直接線性轉換成發光二極體的驅動電壓，以饋入串並 聯發光一極體負載220的高壓側。本實施方式並於串並聯發光 一極體負載220的低壓側以線性降壓電路實現降壓電路工2上， M359640 由於串並聯發光二極體負載220本身的多串接結構已經承受了 高壓側饋入的大部分電壓，所以在電晶體132上的電壓為一相 對的低電壓’以維持其正常工作。承上所述，本實施方式進— 步將電晶體132負回授連接以形成定電流電路13〇來產生定電 流機制；如此一來，定電流電路13〇所產生的定電流由於具有 上述之線性特徵，所以衍生下列優點： 第一、無切換雜訊。 第一、因為沒有開關時序轉換上的功率耗損，所以效率比 一般開關切換式設計更高。 第二、所需要的元件數量、體積與成本相對較少，因而更 具市場優勢。 請參照第4圖，其繪示依照本新型一實施方式之發光二極 體燈官裝置之結構示意圖。圖中，本實施方式之發光二極體燈 管裝置，至少包含一燈管結構3〇〇 '多個發光二極體負載2〇〇 及一定電流驅動電路1〇〇。燈管結構3〇()具體更包含一燈管 310、一门字型散熱座320及一電路板330。燈管310具有一長 條狀溝槽。门字型散熱座320具有一底部及兩散熱翼板，兩散 熱翼板外側卡合於長條狀溝槽，底部則延伸至燈管31〇外，以 提升散熱能力。電路板330容設於兩散熱翼板内側。定電流驅 動電路1〇〇設置於電路板330朝向门字型散熱座32〇的一側， 亦即容置於電路板330與门字型散熱座32〇所形成的空間内。 發光一極體負載200則設置於電路板33〇朝向燈管31〇的一 側，亦即位於燈管3丨〇内。 請繼續參照第5圖，其係為本實施方式之發光二極體燈管 裝置之詳細結構示意圖。圖中，電路板330更包含一燈板331、 夕個導熱膠條332及—基板333。基板333是用來承载定電流 7 M3 59640 驅動電路100，因而可利用—單層雙面電路之電木板來實現 之。而燈板331則用以承載上述之發光二極體負載2〇〇，因而 較佳需具有一反射面以反射照明光，且可利用導線與基板333 上的定電流驅動電路100電性連接。此外，為了解決發光二極 體負載200於工作時產生之高熱，燈板331可選用具高導熱性 質之材料，且進一步利用導熱膠條332連接於散熱座32〇的散 熱翼板。 請繼續參照第6圖，其係為本實施方式之侧視圖田 可=楚知悉，燈管310上方非照明側，具有一長條狀溝槽，而 笞3 10之材質較佳可為一透光材料，例如塑膠或玻璃。此外， 為了使個別光源之發光二極體負載2〇〇能形成一均勻照明光 源，燈管310之材質更可添加一擴散劑311。门字型散熱座 :較佳為-長條狀，以提供較大的散熱面積，其材質則可為銘 合金等散熱材料° Π字型散熱座320利用兩散熱翼板承載電路 板330,並利用底部增加散熱面積；值得一提的是，散熱座咖 的底柯执置數個小孔，以利用煙自效應加強熱對流，進而提 升散熱能力。 雖然本新型已以實施方式揭露如上，然其並非用以限定本新 型’任何熟習此技藝者，在不脫離本新型之精神和範圍内，當可 作各種之更動與潤飾，因此本新型之賴範圍當視後附之申請專 利範圍所界定者為準。 【圖式簡單說明】 優點與實施例能更明 為讓本新型之上述和其他目的、特徵、 顯易懂，所附圖式之說明如下： M359640 第1圖是本新型一實施方式之定電流驅動電路之功能方塊 圖。 第2圖是本實施方式之發光二極體負載之結構示意圖。 第3圖是本實施方式之定電流驅動電路之詳細電路圖。 第4圖是本新型另一實施方式之發光二極體燈管裝置之結 構不意圖。 第5圖是本實施方式之發光二極體燈管裝置之詳細結構示 意圖。 第6圖是本實施方式之發光二極體燈管裝置之側視圖。 【主要元件符號說明】 100 :定電流驅動電路 120 :高壓轉低壓電路 122 :分壓電路 131 :比較器 2〇〇 :發光二極體負載 220:串並聯發光二極體 310 :燈管 320 :散熱座 331 :燈板 333 :基板 110 :交流轉直流電路 121 :降壓電路 130 :定電流電路 132 :電晶體 210 :串並聯發光二極體 300 :燈管結構 311 :擴散劑 330 :電路板 332 :導熱膠條M359640 V. New description: [New technical field] The present invention relates to a lighting device, and in particular to a light emitting body device. [Prior Art] The light-emitting diodes are gradually being applied to lighting equipment due to their low power consumption and low pollution characteristics. Among them, in order to enable the LED lighting device to be matched with the conventional fluorescent lamp holder, we are not committed to the combination of the LED and the fluorescent tube. However, when replacing the neon tube with a light-emitting diode, the first problem is the elimination of waste heat; secondly, when there are small faults in the multiple light-emitting diodes, how to make the faulty light-emitting diodes not It is also important to influence the operation of the drive circuit. [New content] Therefore, one of the technical aspects of the present invention is to provide a light-emitting diode lamp device for combining good heat dissipation capability and driving circuit robustness. According to an embodiment of the present invention, a light emitting diode lamp is provided, which comprises a circuit board, a constant current driving circuit and a plurality of light emitting diode loads. The constant current driving circuit includes at least an alternating current to direct current circuit, a high voltage to low voltage circuit, and an n: current circuit. The AC-to-DC circuit is used to convert a commercial power into a continuous current, and then supply the above-mentioned light-emitting diode load. The high-voltage to low-voltage circuit is used to convert the direct current into a direct current low-voltage power, and the constant current circuit receives the direct current low-voltage power at one end, and the other end is electrically connected to the above-mentioned light-emitting diode load to the 3 M359640: control light-emitting diode The power of the load. The constant current circuit includes at least a comparator and a transistor. The positive input end of the comparator receives DC low voltage power, and the negative input end of the comparator is electrically connected to the output end of the electric body; the input end of the transistor is electrically connected to the LED load, and the control end of the transistor is electrically The output of the comparator is connected. In addition, the LED load can be a series of parallel architectures, that is, a plurality of LEDs are connected in parallel to each other, and the groups are connected in series. According to the above technical aspect of the present invention, a light-emitting diode lamp _ device is further provided, which comprises at least one lamp tube, a gate type heat sink, a circuit board, a certain current driving circuit and a plurality of light emitting diode loads. . The lamp tube has a long strip groove; the door type heat sink has a bottom and two heat dissipating fins, the outer side of the two heat dissipating fins are engaged with the elongated groove, and the bottom portion extends outside the lamp tube. The circuit board is disposed between the two heat dissipating fins; the light emitting diode load is disposed on a side of the circuit board facing the lamp tube; and the constant current driving circuit is disposed on a side of the circuit board facing the gate type heat sink to determine a current Drive the LED load. Therefore, the novel light-emitting diode lamp device can utilize a large-area gate-type Φ-type heat sink to smoothly remove waste heat, and also utilizes a constant current circuit to achieve a stable and steady flow effect at the load end, and through the string The parallel type of LED load increases the product cost. [Embodiment] Please refer to Fig. 1, which is a functional block diagram of a constant current driving circuit according to an embodiment of the present invention. For convenience of explanation, a light emitting diode load 200 is also illustrated. The constant current driving circuit 100 includes at least an AC to DC circuit 11A, a high voltage to low voltage circuit 120, and a constant current circuit 13A. AC to DC circuit 4 The M359640 110 is used to convert a mains supply to a continuous current, which is then supplied to the LED load 200. Specifically, the AC to DC circuit 丨丨〇 includes a commutator, such as a bridge commutator, and a capacitor to filter out chopping. The high-voltage to low-voltage circuit 12 () is used to convert direct current into a direct current low-voltage power, while the constant current circuit 丨3〇 receives DC low-voltage power at one end and is electrically connected to the light-emitting diode load 2〇〇 at the other end. Control the power of the LED load 200. Please refer to Fig. 2, which is a schematic view showing the structure of the light-emitting diode load of the present embodiment. In order to avoid the operation of the LED load 2 due to the failure of a few of the LEDs, which affects the operation of the constant current driving circuit 1 , the LED load 200 is preferably a plurality of series and parallel LEDs. The polar body load is 21〇. For example, when a series-parallel LED load 22 〇 one of the LEDs fails, the current can still flow through the series-parallel LED load 22 without an open circuit fault. In addition, there is an independent drive circuit between the series-parallel LED load 21〇 and the series-parallel LED load 220. Please refer to Fig. 3, which is a detailed circuit diagram of the constant current driving circuit of the present embodiment. In the figure, the high voltage to low voltage circuit 丨2〇 includes a step-down circuit 121 and a voltage dividing circuit 122. The step-down circuit 121 outputs a working voltage given current circuit 130, and then uses the voltage dividing circuit 122 to obtain a low-voltage direct current ν1 given current circuit 130. Of course, we can also use a simple circuit design, such as a pulse width modulation chip (PWM), to simultaneously output an operating voltage and a low voltage direct current V1 to the current circuit 130 without passing through the voltage dividing circuit 122. The constant current circuit 13A includes at least a comparator 131 and a transistor 132. The positive input terminal of the comparator 131 receives the DC low voltage power. The negative input terminal of the comparator 131 is electrically connected to the output terminal of the transistor U2. The input end of the transistor 132 is electrically connected to a series of series-parallel light-emitting diode loads 210, and the control end of the transistor 132 is electrically connected to the output end of the comparator 131. And so on, another set of series-parallel LED loads 22〇 is also mounted on another transistor in the same architecture as 5 M359640. Thereby, since the comparator 131 and the transistor 132 form a negative feedback, the reference voltage V2 is equal to the low voltage direct current VI, so that the series parallel LED load 21 上方 above the transistor 132 exhibits a stable current driving state. In other words, since the output of the comparator 131 stably outputs a current, the transistor 132 also stably controls the current flowing through the series-parallel light-emitting diode load 21〇, thereby achieving the effect of constant current. Of course, the transistor 132 can be a current controlled bi-carrier junction body (B JT) ' can also be a voltage controlled field effect transistor ((fet). It is worth mentioning that the step-down circuit 121 can be implemented by using a controlled commutator (ScR), a pulse frequency modulation chip (PFM), or a pulse width modulation chip (pWM), but is not limited thereto; Generally, the knowledgeer can apply other circuits with buck function without departing from the scope of the novel. However, in the present invention, it is recommended to use a linear buck circuit to implement the buck circuit 12 specifically. In other words, the above-mentioned control rectifier (SCR), pulse frequency modulation chip (PFM) or pulse width modulation chip (PWM) is a method that uses a switching circuit to adjust the clock of the transistor switch, thereby achieving a constant current. The purpose of driving is as follows: First, the continuous switching of the power supply causes high noise output. Second, the switching circuit requires a larger power diode to cooperate with components such as inductors, thus producing High volume requirements and costs. Therefore, the present embodiment proposes to use a linear buck circuit to implement the buck circuit 121' and further the high voltage to low voltage circuit 12 of the present embodiment to become a linear high voltage to low voltage circuit. That is, the present embodiment will be a high voltage of the city f. After being converted to a DC voltage, it is directly linearly converted into a driving voltage of the LED to feed the high voltage side of the series-parallel light-emitting diode load 220. This embodiment is also applied to the low-voltage side of the series-parallel light-emitting diode load 220. The linear step-down circuit realizes the step-down circuit 2, M359640. Since the multi-connected structure of the series-parallel light-emitting diode load 220 itself has withstood most of the voltage fed by the high-voltage side, the voltage on the transistor 132 is one. Relatively low voltage 'to maintain its normal operation. As described above, the present embodiment further negatively feedbacks the transistor 132 to form a constant current circuit 13 〇 to generate a constant current mechanism; thus, the constant current circuit The constant current generated by 13〇 has the following linear characteristics, so the following advantages are derived: First, no switching noise. First, because there is no switching timing conversion The power consumption is higher, so the efficiency is higher than the general switch-switching design. Second, the required number of components, volume and cost are relatively small, so it has more market advantages. Please refer to Figure 4, which shows A schematic diagram of a structure of a light-emitting diode lamp device of the present embodiment. In the figure, the light-emitting diode lamp device of the present embodiment includes at least one lamp structure 3〇〇's multiple light-emitting diode loads 2〇〇 And a certain current driving circuit 1 . The lamp structure 3 〇 () specifically includes a lamp tube 310, a gate type heat sink 320 and a circuit board 330. The lamp tube 310 has a long strip groove. The heat sink 320 has a bottom and two heat dissipating fins. The outer side of the two heat dissipating fins are engaged with the long strip grooves, and the bottom portion extends to the outside of the lamp tube 31 to improve the heat dissipating capability. The circuit board 330 is accommodated inside the two heat dissipation fins. The constant current driving circuit 1 is disposed on a side of the circuit board 330 facing the gate-type heat sink 32, that is, in a space formed by the circuit board 330 and the gate-type heat sink 32. The light-emitting body load 200 is disposed on one side of the circuit board 33 facing the lamp tube 31, that is, in the lamp tube 3''. Please refer to FIG. 5, which is a detailed structural diagram of the light-emitting diode lamp device of the present embodiment. In the figure, the circuit board 330 further includes a light board 331, a thermal conductive strip 332 and a substrate 333. The substrate 333 is used to carry a constant current 7 M3 59640 drive circuit 100, and thus can be realized by a single-layer double-sided circuit board. The light board 331 is used to carry the above-mentioned light-emitting diode load 2〇〇. Therefore, it is preferable to have a reflective surface to reflect the illumination light, and the conductive line can be electrically connected to the constant current driving circuit 100 on the substrate 333. In addition, in order to solve the high heat generated by the LED load 200 during operation, the lamp panel 331 can be made of a material having high thermal conductivity and further connected to the heat dissipating fin of the heat sink 32 by the heat conductive strip 332. Please refer to FIG. 6 , which is a side view of the present embodiment. It can be seen that the non-illuminated side of the lamp tube 310 has a long strip-shaped groove, and the material of the 笞 3 10 is preferably a transparent one. Light materials such as plastic or glass. In addition, in order to make the light-emitting diode of the individual light source load a uniform illumination light source, the material of the lamp tube 310 can be further added with a diffusing agent 311. The door type heat sink is preferably a long strip to provide a large heat dissipating area, and the material thereof can be a heat dissipating material such as a Ming alloy. The U-shaped heat sink 320 carries the circuit board 330 by using two heat dissipating fins, and Use the bottom to increase the heat dissipation area; it is worth mentioning that the bottom of the cooling café has several small holes to enhance the heat convection by using the smoke self-effect, thereby improving the heat dissipation capability. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Any one skilled in the art can make various changes and refinements without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention. FIG. 1 is a constant current of an embodiment of the present invention. Functional block diagram of the drive circuit. Fig. 2 is a schematic view showing the structure of the light-emitting diode load of the present embodiment. Fig. 3 is a detailed circuit diagram of the constant current drive circuit of the present embodiment. Fig. 4 is a schematic view showing the structure of a light-emitting diode lamp unit of another embodiment of the present invention. Fig. 5 is a view showing the detailed structure of the light-emitting diode lamp unit of the present embodiment. Fig. 6 is a side view of the light-emitting diode lamp unit of the embodiment. [Main component symbol description] 100: constant current driving circuit 120: high voltage to low voltage circuit 122: voltage dividing circuit 131: comparator 2: light emitting diode load 220: series and parallel light emitting diode 310: light tube 320 : heat sink 331 : light board 333 : substrate 110 : AC to DC circuit 121 : step-down circuit 130 : constant current circuit 132 : transistor 210 : series and parallel light emitting diode 300 : lamp structure 311 : diffusing agent 330 : circuit Plate 332: thermal tape