CN202050238U

CN202050238U - Lightning protection device special for LED (light-emitting diode) lamp power supply

Info

Publication number: CN202050238U
Application number: CN201120134711XU
Authority: CN
Inventors: 张仲; 王飞龙; 郑浩闻
Original assignee: BEIJING YINGHUAN FEILONG Co Ltd
Current assignee: BEIJING YINGHUAN FEILONG Co Ltd
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2011-11-23
Anticipated expiration: 2021-04-29

Abstract

The utility model relates to a lightning protection device special for an LED (light-emitting diode) lamp power supply. The lightning protection device comprises a main body. A lightning surge limit unit of the main body is connected with the input end of a signal source; the lightning surge limit unit is sequentially connected with a lightning current discharging unit, a decoupling unit, a lightning voltage clamping unit, a lightning electromagnetic shielding unit, a capacitor voltage-dividing unit, a magnetoelectricity converting unit, an insulating isolating unit, a power frequency short circuit protective unit and a capacitor filtering unit; the capacitor filtering unit is connected with the output end of the signal source, wherein the capacitor voltage-dividing unit is connected with a fault display unit. The lightning protection device special for the LED lamp power supply has the beneficial effects of strong lightning protection electromagnetic pulse interference voltage and current capability and quick speed of action; furthermore, a shielding device is additionally arranged in the lightning protection device so as to shield and transfer or reversely counteract the power harmonic interference and other high frequency signal interference; the efficiency and the service life of the LED lamp power supply are increased; and the maintenance cost of the lamp is reduced.

Description

The special-purpose lightning protection device of LED lamp power

Technical field

The present invention relates to the special-purpose lightning protection device of a kind of LED lamp power.

Background technology

The anti-lightning strike electromagnetic pulse surge of LED lamp power module measure is to import end line (Line to Ground) over the ground at power module AC220V on the domestic market at present, line is to zero (Line to Neutral), zero installs transient state device (discharge tube over the ground between (Neutral to Ground), piezo-resistance, Transient Suppression Diode etc.), because the designing requirement of LED lamp power modular circuit is tighter, these transient state device power can not be selected excessive, general tolerance thunderbolt voltage is all about 4kV, the tolerance thunder-strike current is about 2kA, and responsiveness is (generally slow 50-100ns).

Summary of the invention

The purpose of this invention is to provide the special-purpose lightning protection device of a kind of LED lamp power, overcome the deficiency of above-mentioned aspect in the existing product.

The objective of the invention is to be achieved through the following technical solutions:

The special-purpose lightning protection device of a kind of LED lamp power; comprise main body; described main body is provided with thunder and lightning surge limiting unit; the lightning current vent unit; the decoupling unit; lightning voltage is clamped down on the unit; thunderbolt electromagnetic shielding unit; the capacitance partial pressure unit; the magnetoelectricity converting unit; the insulation isolated location; power frequency short-circuit protection unit and capacitor filtering unit; wherein; thunder and lightning surge limiting unit is connected with the signal source input; thunder and lightning surge limiting unit also connects the lightning current vent unit; the lightning current vent unit connects the decoupling unit; the decoupling unit connects lightning voltage and clamps down on the unit; lightning voltage is clamped down on the unit and is connected thunderbolt electromagnetic shielding unit; thunderbolt electromagnetic shielding unit connects the capacitance partial pressure unit; the capacitance partial pressure unit connects magnetoelectricity converting unit and fault display unit respectively; the magnetoelectricity converting unit connects the insulation isolated location; the insulation isolated location connects power frequency short-circuit protection unit; power frequency short-circuit protection unit connects the capacitor filtering unit, and the capacitor filtering unit is connected with the signal source output.

The beneficial effects of the utility model are: anti-LEMP interference voltage and current capacity are strong, quick action, and inside has increased screening arrangement, maskable shifts or oppositely offsets supply harmonic and disturbs and other high-frequency signal interference, increase the efficient and the useful life of LED lamp power module, reduce the maintenance cost of light fixture.

Description of drawings

With reference to the accompanying drawings the utility model is described in further detail below.

Fig. 1 is the structured flowchart of the special-purpose lightning protection device of the described LED lamp power of the utility model embodiment;

Among the figure:

1, main body; 2, signal source input; 3, thunder and lightning surge limiting unit; 4, lightning current vent unit; 5, decoupling unit; 6, lightning voltage is clamped down on the unit; 7, thunderbolt electromagnetic shielding unit; 8, capacitance partial pressure unit; 9, magnetoelectricity converting unit; 10, insulation isolated location; 11, power frequency short-circuit protection unit; 12, capacitor filtering unit; 13, signal source output; 14, fault display unit.

Embodiment

As shown in Figure 1; the special-purpose lightning protection device of the described a kind of LED lamp power of the embodiment of the invention; comprise main body 1; described main body 1 is provided with thunder and lightning surge limiting unit 3; lightning current vent unit 4; decoupling unit 5; lightning voltage is clamped down on unit 6; thunderbolt electromagnetic shielding unit 7; capacitance partial pressure unit 8; magnetoelectricity converting unit 9; insulation isolated location 10; power frequency short-circuit protection unit 11 and capacitor filtering unit 12; wherein thunder and lightning surge limiting unit 3 is connected with signal source input 2; thunder and lightning surge limiting unit 3 also connects lightning current vent unit 4; lightning current vent unit 4 connects decoupling unit 5; decoupling unit 5 connects lightning voltage and clamps down on unit 6; lightning voltage is clamped down on unit 6 and is connected thunderbolt electromagnetic shielding unit 7; thunderbolt electromagnetic shielding unit 7 connects capacitance partial pressure unit 8; capacitance partial pressure unit 8 connects magnetoelectricity converting unit 9 and fault display unit 14 respectively; magnetoelectricity converting unit 9 connects insulation isolated location 10; insulation isolated location 10 connects power frequency short-circuit protection unit 11; power frequency short-circuit protection unit 11 connects capacitor filtering unit 12, and capacitor filtering unit 12 is connected with signal source output 13.

Described thunder and lightning surge limiting unit 3 plays the effect of restriction high frequency lightning current; Described lightning current vent unit 4 plays the effect of the instantaneous thunder amplification current of releasing; The 5 pairs of high frequency lightning currents in described decoupling unit play time-lag action, eliminate stray inductance, dividing potential drop simultaneously and alleviate lightning voltage and clamp down on unit 6 two ends power; Described lightning voltage is clamped down on unit 6 can improve the thunder resisting equipment response speed, further limits the effect of lightning current hazardous voltages amplitude; Described thunderbolt electromagnetic shielding unit 7 divides and walks to endanger thunder disaster magnetic field by inner high magnetic conduction shielding material; Described capacitance partial pressure unit 8 reduces the hazardous voltages of signal source output 13 by changing the distributed capacitance of signal source input 2, signal source output 13, and the harm electric current of the above wave band of lightning current high frequency is carried out filtering; Described magnetoelectricity converting unit 9 is separated useful signal; Insulation isolated location 10 can be avoided input, outlet line directly connects, and insulation isolated location 10 can be avoided casing distributed capacitance or the stray inductance hazardous voltages that is coupled once more; Described power frequency short-circuit protection unit 11 can prevent the short circuit of protected device end equipment, causes internal circuit impaired; The be added to harmonic effect of power-frequency voltage of described capacitor filtering unit 12 filtering lightning current high fdrequency components; Described fault display unit 14 shows the ruddiness warning when equipment breaks down.

Claims

1. the special-purpose lightning protection device of a LED lamp power; comprise main body (1); it is characterized in that: described main body (1) is provided with thunder and lightning surge limiting unit (3); lightning current vent unit (4); decoupling unit (5); lightning voltage is clamped down on unit (6); thunderbolt electromagnetic shielding unit (7); capacitance partial pressure unit (8); magnetoelectricity converting unit (9); insulation isolated location (10); power frequency short-circuit protection unit (11) and capacitor filtering unit (12); wherein; thunder and lightning surge limiting unit (3) is connected with signal source input (2); thunder and lightning surge limiting unit (3) also connects lightning current vent unit (4); lightning current vent unit (4) connects decoupling unit (5); decoupling unit (5) connects lightning voltage and clamps down on unit (6); lightning voltage is clamped down on unit (6) and is connected thunderbolt electromagnetic shielding unit (7); thunderbolt electromagnetic shielding unit (7) connects capacitance partial pressure unit (8); capacitance partial pressure unit (8) connects magnetoelectricity converting unit (9) and fault display unit (14) respectively; magnetoelectricity converting unit (9) connects insulation isolated location (10); insulation isolated location (10) connects power frequency short-circuit protection unit (11); power frequency short-circuit protection unit (11) connects capacitor filtering unit (12), and capacitor filtering unit (12) are connected with signal source output (13).