CN204886163U - LED lamps and lanterns power lightning protection circuit - Google Patents
LED lamps and lanterns power lightning protection circuit Download PDFInfo
- Publication number
- CN204886163U CN204886163U CN201520520459.4U CN201520520459U CN204886163U CN 204886163 U CN204886163 U CN 204886163U CN 201520520459 U CN201520520459 U CN 201520520459U CN 204886163 U CN204886163 U CN 204886163U
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- lightning protection
- power
- constant current
- gas discharge
- discharge tube
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Abstract
The utility model provides a LED lamps and lanterns power lightning protection circuit, includes power lightning protection module, constant current drive unit, LED array module and the control unit, the external power source signal passes through the power lightning protection module flow direction the constant current drive unit, the control unit and constant current drive unit connection, the constant current drive unit is connected with LED array module, power lightning protection module has input, output and a PE end, and the live wire L of input and power is connected, and the zero line N of output and power is connected, not LED termination ground, and power lightning protection module is including establishing at the pressure -sensitive device between input and the output, at the pressure -sensitive device and the gas discharge tube of the pressure -sensitive device of mutual series connection between live wire L and PE hold and gas discharge tube and mutual series connection between zero line N and PE hold. The utility model discloses have two kinds of lightning protection unit of power lightning protection and signal lightning protection in lamps and lanterns, make the high pressure resistant big current rush of lamps and lanterns, can avoid the thunderbolt by high -efficient protection lamps and lanterns under adverse circumstances. (U /)
Description
Technical field
The utility model relates to LED lamp, especially has the LED lamp of power lightning protection circuit.
Background technology
LED lamp, when practical application, is often struck by lightning, the threat of the factors such as surge, and particularly outdoor lighting engineering, in the position of building object height, is easy to suffer mine transmitting device.Thunderbolt, power surge fluctuation meeting are by producing larger transient voltage, and instantaneous electric current makes the communication port of light fixture cause damage, thus cannot reach light fixture brightening effect.
Outdoor lamp is generally arranged on the outdoor edge of building, once fault, causes very large loss, brings great difficulty to maintenance.LED lamp in the market, does not possess lightning Protection Design, the protection of the DMX control signal particularly commonly used for light fixture.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of LED lamp power lightning protection circuit, the high pressure resistant heavy current impact of light fixture, can high efficient protected light fixture in the presence of a harsh environment from thunderbolt.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of LED lamp power lightning protection circuit, comprises lightning protection module of power source, constant current driving unit, LED array module and control unit; External power source signal flows to described constant current driving unit by described lightning protection module of power source, and described control unit is connected with constant current driving unit, and constant current driving unit is connected with LED array module; Described lightning protection module of power source has input, output and PE end, input is connected with the live wire L of power supply, output is connected with the zero line N of power supply, LED holds ground connection, and lightning protection module of power source comprises the pressure-sensitive device and gas discharge tube that are located at the pressure-sensitive device between input with output, the pressure-sensitive device of mutually connecting between live wire L and PE holds and gas discharge tube and mutual series connection between zero line N and PE holds.
As improvement, described gas discharge tube is the GDT gas discharge tube of high pressure resistant high speed.
The beneficial effect that the utility model is compared with prior art brought is:
Integrated power supply lightning-protection module in light fixture, makes light fixture ability high-voltage great-current impact, can high efficient protected light fixture in the presence of a harsh environment from thunderbolt, conveyance capacity is strong, fast response time, and has the advantage that reliability high and life-span grows; Need not other SPD module external on the printed circuit board (PCB) that lightning protection module of power source is built in light fixture.
Accompanying drawing explanation
Fig. 1 is the utility model circuit structure block diagram.
Fig. 2 is lightning protection module of power source circuit structure block diagram.
Fig. 3 is signal lighting protection modular circuit structured flowchart.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.
As shown in Figure 1, the anti-circuit of a kind of LED lamp power lightning protection, comprises lightning protection module of power source, constant current driving unit, LED array module and control unit; External power source signal flows to described constant current driving unit by described lightning protection module of power source; Described control unit is connected with constant current driving unit, and constant current driving unit is connected with LED array module.Can also arrange the signal lighting protection module of control signal being carried out to lightning protection, external control signal is by described signal lighting protection module traffic organising unit.
Described light fixture control unit is core with CPU, comprises host CPU and controls, interactive interface, to realize the control signal receiving external piloting control, produces pwm signal by data processing, the DMX signal that main control unit receiving light is conventional.
Described power supply constant current driving unit is made up of Switching Power Supply and constant-current drive circuit, and constant-current drive circuit is controlled by pwm signal, to meet the requirement of lamp light-regulating.
Described distribution type LED array element is by lamp pearl, and lens assembly lamp radiator forms.
As shown in Figure 2, described lightning protection module of power source comprises the first pressure-sensitive device, the second pressure-sensitive device, the 3rd pressure-sensitive device and gas discharge tube; Power supply signal comprises live wire L and zero line N, described first pressure-sensitive device is located between described live wire L and zero line N, live wire L is connected with the first pin of gas discharge tube by the second pressure-sensitive device, zero line N is connected with the second pin of gas discharge tube by the 3rd pressure-sensitive device, the 3rd pin ground connection of gas discharge tube.Described power module lightning-protection module, is connected between the input of electric power driving module and lightning protection end, and between L/N, access pressure cell, plays the effect of common mode protection; Use pressure-sensitive device and gas discharge tube series system between L/PE, N/PE, do differential mode protection.
As shown in Figure 3, described signal lighting protection module comprises gas discharge tube GDT, the first field effect transistor transient current protector TBU, the second field effect transistor transient current protector TBU, the first two-way transient state suppression TVS pipe and the second two-way transient state and suppresses TVS pipe; Described control signal comprises the first holding wire and secondary signal line, and wherein two pins of described gas discharge tube GDT are connected with the first holding wire and secondary signal line respectively, the 3rd pin ground connection of gas discharge tube GDT; First field effect transistor transient current protector TBU is located on the first holding wire, and the second field effect transistor transient current protector TBU is located on secondary signal line; First two-way transient state suppresses a pin of TVS pipe to be connected with the first holding wire, another pin ground connection, and the first field effect transistor transient current protector TBU suppresses between TVS pipe at gas discharge tube GDT and the first two-way transient state; Second two-way transient state suppresses a pin of TVS pipe to be connected with secondary signal line, and another pin ground connection, the second field effect transistor transient current protector TBU suppresses between TVS pipe at gas discharge tube GDT and the second two-way transient state.Described control signal lightning-protection module; be connected between signal input/output port; between the control signal of input and output; gas discharge tube GDT plays one-level lightning protection effect; field effect transistor transient current protector TBU is between the first order and third level protection device; can provide back-end circuit very quick and reliable electric isolution protection, field effect transistor transient current protector TBU overcurrent fastening device is opened a way under scheduled current.When generation overcurrent, device can in 1us the time protected circuit and surge are disconnected, in the remaining time of transition, protect in protected obstruct state.Under obstruct pattern, it has very high impedance to intercept transient energy.When after current spikes pop-off, voltage strides across TBU and lower than predetermined level, its field effect transistor transient current protector TBU device will recover normal.The feature of signal lighting protection is: block surging energy instantaneously and enter load circuit, and non-diverting or be transferred to ground, effectively block surge.The reaction time of 1us simultaneously, for high speed transmission of signals.
Claims (2)
1. a LED lamp power lightning protection circuit, is characterized in that: comprise lightning protection module of power source, constant current driving unit, LED array module and control unit; External power source signal flows to described constant current driving unit by described lightning protection module of power source, and described control unit is connected with constant current driving unit, and constant current driving unit is connected with LED array module; Described lightning protection module of power source has input, output and PE end, input is connected with the live wire L of power supply, output is connected with the zero line N of power supply, LED holds ground connection, and lightning protection module of power source comprises the pressure-sensitive device and gas discharge tube that are located at the pressure-sensitive device between input with output, the pressure-sensitive device of mutually connecting between live wire L and PE holds and gas discharge tube and mutual series connection between zero line N and PE holds.
2. a kind of LED lamp power lightning protection circuit according to claim 1, is characterized in that: described gas discharge tube is the GDT gas discharge tube of high pressure resistant high speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520520459.4U CN204886163U (en) | 2015-07-17 | 2015-07-17 | LED lamps and lanterns power lightning protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520520459.4U CN204886163U (en) | 2015-07-17 | 2015-07-17 | LED lamps and lanterns power lightning protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204886163U true CN204886163U (en) | 2015-12-16 |
Family
ID=54830495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520520459.4U Expired - Fee Related CN204886163U (en) | 2015-07-17 | 2015-07-17 | LED lamps and lanterns power lightning protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204886163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391023A (en) * | 2015-12-18 | 2016-03-09 | 湖南普天科比特电子科技有限公司 | Current variable lightning protection device and lightning protection method |
| CN108376979A (en) * | 2018-04-16 | 2018-08-07 | 淮阴师范学院 | A kind of laser diode electrostatic surge protection device |
-
2015
- 2015-07-17 CN CN201520520459.4U patent/CN204886163U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391023A (en) * | 2015-12-18 | 2016-03-09 | 湖南普天科比特电子科技有限公司 | Current variable lightning protection device and lightning protection method |
| CN108376979A (en) * | 2018-04-16 | 2018-08-07 | 淮阴师范学院 | A kind of laser diode electrostatic surge protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20200717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |