CN213213907U - High-voltage drive-free COB light source - Google Patents
High-voltage drive-free COB light source Download PDFInfo
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- CN213213907U CN213213907U CN202022278949.1U CN202022278949U CN213213907U CN 213213907 U CN213213907 U CN 213213907U CN 202022278949 U CN202022278949 U CN 202022278949U CN 213213907 U CN213213907 U CN 213213907U
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Abstract
The utility model discloses a high-voltage drive-free COB light source, wherein a power conversion module, a luminous body module and a constant current module are arranged on a substrate; the live wire input end of the power conversion module is sequentially connected with a high-voltage fuse and a thermistor in series and then connected to the input end of the rectifier bridge, the zero line input end is connected with the thermistor in series and then connected to the other input end of the rectifier bridge, and a piezoresistor is connected between the two input ends of the rectifier bridge; the positive electrode of the output end of the power supply conversion module is connected to one end of an LED luminous body mounting plate of the luminous body module, and the other end of the LED luminous body mounting plate is connected to the negative electrode of the output end of the power supply conversion module through a constant current module; and the micro-brightness removing resistors are connected in parallel between the light emitting units formed by connecting the LED luminous bodies in series. The utility model discloses an optimize circuit board inner line, integrated rectifier module, design high-voltage fuse, anti surge piezo-resistor form the high-voltage line board, can directly connect the alternating current to use, simple to operate, light source good reliability.
Description
Technical Field
The utility model belongs to the technical field of the LED illumination, specifically relate to a driven COB light source is exempted from to high pressure.
Background
The existing LED-COB light source is integrated on an aluminum-based circuit board by adopting a light-emitting device (LED chip), can be used only by being externally connected with a matched direct current power supply, cannot be directly connected with alternating current, is inconvenient to install during use, and has poor performance of easily receiving voltage impact by the external direct current power supply, so that the reliability of the light source is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to above-mentioned problem, provide a COB light source that driven is exempted from to high pressure, can directly connect the alternating current to use, simple to operate, and light source good reliability.
The utility model discloses a realize through following technical scheme:
the utility model provides a COB light source that driven is exempted from to high pressure, includes the base plate, its characterized in that: the substrate is provided with a power supply conversion module, a light emitting body module and a constant current module; the input end of the power supply conversion module is connected with a live wire and a zero wire of an alternating current power supply, the input end of the live wire is sequentially connected with a high-voltage fuse and a thermistor in series and then connected to the input end of a rectifier bridge, the input end of the zero wire is connected with the thermistor in series and then connected to the other input end of the rectifier bridge, and a piezoresistor is connected between the two input ends of the rectifier bridge; the anode of the output end of the power supply conversion module is connected to one end of an LED luminous body mounting plate of the luminous body module, and the other end of the LED luminous body mounting plate is connected to the cathode of the output end of the power supply conversion module through a constant current module; the LED luminous body mounting plate is characterized in that a plurality of LED luminous bodies mounted on the LED luminous body mounting plate are connected in series to form a luminous unit, and a micro-brightness removing resistor is connected in parallel between the luminous units; the base plate is also provided with a plurality of mounting holes.
Furthermore, the number of the LED luminous bodies arranged in the light emitting units connected with the micro brightness removing resistors in parallel is the same.
The utility model has the advantages that: 1. the utility model discloses an optimize the internal circuit of circuit board, integrated rectifier module, designed high-voltage fuse, anti surge piezo-resistor has formed the high-voltage line board, can directly connect the alternating current to use, simple to operate, and light source good reliability can realize 1W-200W in the power. 2. The overall dimension of product more is favorable to the user demand of cooperation market to change, if is used for the LED projecting lamp, and it is more convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, the LED lamp comprises a substrate 1, a substrate 2, a power conversion module 3, a luminous body module 4, a constant current module 5, a mounting hole 6, a high-voltage fuse 7, a thermistor 8, a piezoresistor 9, an LED luminous body mounting plate 10, an LED luminous body 11 and a delustering resistor.
Detailed Description
The invention will be further described with reference to the following specific examples and the accompanying drawings.
As shown in fig. 1, a high-voltage drive-free COB light source includes a substrate 1, a power conversion module 2 is installed on the left side of the substrate 1, a light emitting module 3 is installed in the middle of the substrate, and a constant current module 4 is installed on the right side of the substrate; the input end of the power conversion module 2 is connected with a live wire and a zero wire of an alternating current power supply, the input end L of the live wire is sequentially connected with a high-voltage fuse 6(F1) and a thermistor 7(FR1) in series and then connected to the input end of a rectifier bridge DB1, the input end N of the zero wire is connected with the thermistor 7(FR2) in series and then connected to the other input end of the rectifier bridge DB1, and a voltage dependent resistor 8(ZV) resisting surge voltage is connected between the two input ends of the rectifier bridge DB 1; the anode of the output end of the power supply conversion module 2 is connected to one end of an LED luminous body mounting plate 9 of the luminous body module 3, and the other end of the LED luminous body mounting plate 9 is connected to the cathode of the output end of the power supply conversion module 2 through a constant current module 4; the LED luminary mounting board 9 is provided with a delustering resistor 11(R7, R8, R9, R10. cndot. R18) connected in parallel between the light emitting units formed by connecting every 6 LED luminaries 10 in series. The base plate 1 is also provided with 4 mounting holes 5. The constant current module 4 controls the current flowing through the LED luminary 10 to keep stable, so that the luminous intensity is kept unchanged. The function of the resistance 11 is to remove the phenomenon of slight lighting of the LED luminary 10 and protect the LED luminary 10 by the residual electricity in the components being consumed through the resistance when the ac power is turned off.
The utility model discloses a cooperation market's user demand can realize 1W-200W in the power, and the overall dimension of product also can change, and luminous body and electronic components are with LED special silica gel with its complete encapsulation on the circuit board, encapsulate the protection to its product, if do the LED projecting lamp can directly wire to the 220V alternating current when using this product, need not increase LED drive power supply again.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and those skilled in the art should be equivalent replacement modes without departing from the spirit and principles of the present invention.
Claims (2)
1. The utility model provides a COB light source that driven is exempted from to high pressure, includes the base plate, its characterized in that: the substrate is provided with a power supply conversion module, a light emitting body module and a constant current module; the input end of the power supply conversion module is connected with a live wire and a zero wire of an alternating current power supply, the input end of the live wire is sequentially connected with a high-voltage fuse and a thermistor in series and then connected to the input end of a rectifier bridge, the input end of the zero wire is connected with the thermistor in series and then connected to the other input end of the rectifier bridge, and a piezoresistor is connected between the two input ends of the rectifier bridge; the anode of the output end of the power supply conversion module is connected to one end of an LED luminous body mounting plate of the luminous body module, and the other end of the LED luminous body mounting plate is connected to the cathode of the output end of the power supply conversion module through a constant current module; the LED luminous body mounting plate is characterized in that a plurality of LED luminous bodies mounted on the LED luminous body mounting plate are connected in series to form a luminous unit, and a micro-brightness removing resistor is connected in parallel between the luminous units; the base plate is also provided with a plurality of mounting holes.
2. The high-voltage, drive-free COB light source of claim 1, wherein: the LED luminous bodies installed in the light emitting units connected with the micro-brightness removing resistors in parallel are the same in number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022278949.1U CN213213907U (en) | 2020-10-13 | 2020-10-13 | High-voltage drive-free COB light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022278949.1U CN213213907U (en) | 2020-10-13 | 2020-10-13 | High-voltage drive-free COB light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213213907U true CN213213907U (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022278949.1U Active CN213213907U (en) | 2020-10-13 | 2020-10-13 | High-voltage drive-free COB light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213213907U (en) |
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2020
- 2020-10-13 CN CN202022278949.1U patent/CN213213907U/en active Active
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