CN206413222U - A kind of lightning protection circuit and LED drive power - Google Patents

A kind of lightning protection circuit and LED drive power Download PDF

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Publication number
CN206413222U
CN206413222U CN201621469942.5U CN201621469942U CN206413222U CN 206413222 U CN206413222 U CN 206413222U CN 201621469942 U CN201621469942 U CN 201621469942U CN 206413222 U CN206413222 U CN 206413222U
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China
Prior art keywords
protection circuit
lightning protection
thermistor
lightning
resistance
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CN201621469942.5U
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王宗友
罗飞熊
邹超洋
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Shenzhen Song Sheng Electronic Ltd By Share Ltd
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Shenzhen Song Sheng Electronic Ltd By Share Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

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Abstract

The utility model is related to a kind of lightning protection circuit and LED drive power.The circuit includes:First thermistor PTC1, the second thermistor PTC2, the first lightning protection circuit, the second lightning protection circuit, wherein, the first thermistor PTC1 accesses zero line, the second thermistor PTC2 access live wires, first lightning protection circuit connects zero line and the shell line that picks, the second lightning protection circuit connection live wire and zero line;When alternating current circuit, which is met with, is struck by lightning, alternating current circuit is connected by the first thermistor PTC1, the second thermistor PTC2, the first lightning protection circuit and the second lightning protection circuit with the earth, and the voltage for generation of being struck by lightning is released into ground terminal.By implementing the utility model, power supply can be protected very well in the more place of thunder and lightning, and power supply can be protected very well in the larger place of power network fluctuation.

Description

A kind of lightning protection circuit and LED drive power
Technical field
The utility model is related to LED field, more specifically to a kind of lightning protection circuit and LED drive power.
Background technology
With the popularization of LED, LED drive power is used in increasing place, such as in street lamp, Tunnel Lamp, Landscape Lamp, The high-power LED driving power sources such as Commercial lighting, require the cost performance of LED drive power more and more higher, it is existing on the market The stability of LED drive power Shortcomings, such as LED power is poor, on the high side, lightning protection level capability is poor, efficiency is relatively low.
In addition, in the LED device of outdoor mounted, often encountering thunderstorm weather, it is well known that the thunder and lightning in thunderstorm weather Be it is breakneck, thunder and lightning can to outdoor LED power supply and life cause very big influence, we how can by this " danger Turn danger into safety danger "We will use a kind of protection device, and this protection device is " lightning-protection module;It is added in power input Energy aspect can reach more preferable effect..The type of lightning-protection module mainly has portable protective gaps, valve-type lightning protection device and zinc oxide lightning protection Device.Portable protective gaps are mainly used in limiting atmospheric over-voltage, are generally used for distribution system, circuit and inlet wire of substation section protection.Valve Type lightning protection device is used for the protection in electric substation and power plant with zinc oxide lightning protection device, and limitation is mainly used in 500KV and following system Atmospheric over-voltage, also by for limiting internal overvoltage or make the back-up protection of internal overvoltage in extra high voltage system.This is several anti- Thunder and lightning road is unsuitable for LED drive power.
Utility model content
The technical problems to be solved in the utility model is, for the above-mentioned existing LED power lightning protection effect of prior art There is provided a kind of lightning protection circuit and LED drive power for the defect of difference.
The utility model solves the technical scheme that its technical problem used:A kind of lightning protection circuit is constructed, including:First Thermistor PTC1, the second thermistor PTC2, the first lightning protection circuit, the second lightning protection circuit, wherein,
The first thermistor PTC1 accesses zero line, and the second thermistor PTC2 accesses live wire, and described first prevents Thunder and lightning road connects the zero line and the shell line that picks, and second lightning protection circuit connects the live wire and zero line;
When alternating current circuit, which is met with, is struck by lightning, the first thermistor PTC1, the second thermistor PTC2, the first thunder-lightning Alternating current circuit is connected by road and the second lightning protection circuit with the earth, and the voltage for generation of being struck by lightning is released into ground terminal.
Preferably, lightning protection circuit described in the utility model, first lightning protection circuit includes:Piezo-resistance in parallel, Two discharge tube FGD2, the 3rd thermistor PTC3,
The zero line passes through the piezo-resistance in parallel of connecting, the second discharge tube FGD2, the 3rd thermistor PTC3 connections The shell line that picks.
Preferably, lightning protection circuit described in the utility model, the piezo-resistance in parallel includes:First piezo-resistance MOV1 With the second piezo-resistance MOV2.
Preferably, lightning protection circuit described in the utility model, second lightning protection circuit includes:First discharge tube FGD1, 4th thermistor PTC4, the 3rd piezo-resistance MOV3,
The zero line passes through the first discharge tube FGD1, the 4th thermistor PTC4, the 3rd piezo-resistance MOV3 of connecting Connect the live wire.
Preferably, lightning protection circuit described in the utility model, the first thermistor PTC1, second thermistor PTC2, the 3rd thermistor PTC3, the 4th thermistor PTC4 are semistor.
Preferably, lightning protection circuit described in the utility model, the first discharge tube FGD1 and the second discharge tube FGD2 are Solid discharging tube or gas-discharge tube.
Preferably, lightning protection circuit described in the utility model, the first piezo-resistance MOV1, the second piezo-resistance MOV2, the 3rd piezo-resistance MOV3 are zinc oxide varistor, silicon carbide varistor, metal oxide piezo-resistance At least one of device, germanium (silicon) piezoresistor, barium titanate piezoresistor.
Preferably, lightning protection circuit described in the utility model, the lightning protection circuit is pressure-resistant by the voltage of thunderbolt generation Value is not more than 20KV.
Preferably, lightning protection circuit described in the utility model, the pressure voltage over the ground of the lightning protection circuit is less than 1600V.
In addition, a kind of LED drive power is also disclosed in the utility model, the LED drive power includes above-mentioned lightning protection circuit.
Implement lightning protection circuit of the present utility model and LED drive power, have the advantages that:The circuit includes:The One thermistor PTC1, the second thermistor PTC2, the first lightning protection circuit, the second lightning protection circuit, wherein, the first temperature-sensitive electricity PTC1 access zero lines are hindered, the second thermistor PTC2 accesses live wire, and first lightning protection circuit connects the zero line and connect Casing line, second lightning protection circuit connects the live wire and zero line;When alternating current circuit, which is met with, is struck by lightning, the first temperature-sensitive electricity Alternating current circuit is connected by resistance PTC1, the second thermistor PTC2, the first lightning protection circuit and the second lightning protection circuit with the earth, will The electric current and voltage that thunderbolt is produced are uninstalled.By implementing the utility model, it can be protected very well in the more place of remote thunder and lightning Power supply is protected, and power supply can be protected very well in the larger place of power network fluctuation.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model lightning protection circuit;
Fig. 2 is the structural representation of the utility model lightning protection circuit preferred embodiment.
Embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, accompanying drawing is now compareed detailed Illustrate this embodiment of the present utility model.
Such as Fig. 1, Fig. 1 is the structural representation of the utility model lightning protection circuit.
The utility model solves the technical scheme that its technical problem used:A kind of lightning protection circuit is constructed, including:First Thermistor PTC1, the second thermistor PTC2, the first lightning protection circuit, the second lightning protection circuit, wherein,
First thermistor PTC1 accesses zero line, the second thermistor PTC2 access live wires, the first lightning protection circuit connection zero Line and the shell line that picks, the second lightning protection circuit connection live wire and zero line;
When alternating current circuit meet be struck by lightning when, the first thermistor PTC1, the second thermistor PTC2, the first lightning protection circuit, And second lightning protection circuit by alternating current circuit with the earth be connected, by be struck by lightning generation voltage be released to ground terminal.
Fig. 2 is the structural representation of the utility model lightning protection circuit preferred embodiment.
Specifically, N represents zero line in Fig. 2, L represents that live wire, FG represent the shell line that picks.Lightning protection circuit of the present utility model, First lightning protection circuit includes:Piezo-resistance in parallel, the second discharge tube FGD2, the 3rd thermistor PTC3,
Zero line is picked shell line by series and parallel piezo-resistance, the second discharge tube FGD2, the 3rd thermistor PTC3 connections, From zero line to the shell line that picks put in order for:Series and parallel piezo-resistance, the second discharge tube FGD2, the 3rd thermistor PTC3.Discharge tube is a kind of high pressure protector, when discharge tube both end voltage exceedes its rated range, its internal meeting short circuit. The connection mode of discharge tube is that one end and piezo-resistance are in parallel, one end connection protecting field (PE).Piezo-resistance is a kind of with non- Linear resistor device.When the voltage being added in above it is less than its threshold values, the electric current for flowing through it is minimum, is shut equivalent to one Valve;When voltage exceedes its threshold values, its resistance diminishes, and so allows for flowing through its electric current surge.
Preferably, lightning protection circuit of the present utility model, piezo-resistance in parallel includes:The pressures of first piezo-resistance MOV1 and second Quick resistance MOV2.
Preferably, lightning protection circuit of the present utility model, the second lightning protection circuit includes:First discharge tube FGD1, the 4th temperature-sensitive Resistance PTC4, the 3rd piezo-resistance MOV3,
Zero line passes through the first discharge tube FGD1, the 4th thermistor PTC4, the 3rd piezo-resistance MOV3 connection live wires of connecting. From zero line to live wire put in order for:First discharge tube FGD1, the 4th thermistor PTC4, the 3rd piezo-resistance MOV3.
Preferably, lightning protection circuit of the present utility model, the first thermistor PTC1, the second thermistor PTC2, the 3rd heat Quick resistance PTC3, the 4th thermistor PTC4 are semistor.
Preferably, lightning protection circuit of the present utility model, the first discharge tube FGD1 and the second discharge tube FGD2 are solid discharge Pipe or gas-discharge tube.
Preferably, lightning protection circuit of the present utility model, the first piezo-resistance MOV1, the second piezo-resistance MOV2, the 3rd pressure Quick resistance MOV3 is that zinc oxide varistor, silicon carbide varistor, metal-oxide varistor, germanium (silicon) are pressure-sensitive At least one of resistor, barium titanate piezoresistor.
Preferably, lightning protection circuit of the present utility model, the pressure voltage for the voltage that lightning protection circuit is produced by thunderbolt is not more than 20KV。
Preferably, lightning protection circuit of the present utility model, the pressure voltage over the ground of lightning protection circuit is less than 1600V.
In addition, a kind of LED drive power is also disclosed in the utility model, LED drive power includes above-mentioned lightning protection circuit.
By implementing the utility model, when ac input circuit, which is met with, to be struck by lightning, ac input end can produce instantaneous high electricity Press, at this moment the resistance of piezo-resistance can diminish moment, instantaneous short circuit inside discharge tube so meets with the moment of thunderbolt, alternating current Road is connected with the earth, and powerful voltage is released to ground terminal, is effectively protected equipment.
Power supply can be protected very well in the more place of remote thunder and lightning, and can be fine in the larger place of power network fluctuation Protect power supply.
Above example is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with technique Personage can understand content of the present utility model and implement accordingly, protection domain of the present utility model can not be limited.It is all with The equivalent changes and modifications that the utility model right is done, all should belong to the utility model claim covers model Enclose.

Claims (10)

1. a kind of lightning protection circuit, it is characterised in that including:First thermistor PTC1, the second thermistor PTC2, the first lightning protection Circuit, the second lightning protection circuit, wherein,
The first thermistor PTC1 accesses zero line, and the second thermistor PTC2 accesses live wire, first thunder-lightning Road connects the zero line and the shell line that picks, and second lightning protection circuit connects the live wire and zero line;
When alternating current circuit meet be struck by lightning when, the first thermistor PTC1, the second thermistor PTC2, the first lightning protection circuit, And second lightning protection circuit by alternating current circuit with the earth be connected, by be struck by lightning generation voltage be released to ground terminal.
2. lightning protection circuit according to claim 1, it is characterised in that first lightning protection circuit includes:Pressure-sensitive electricity in parallel Resistance, the second discharge tube FGD2, the 3rd thermistor PTC3,
The zero line is described by the piezo-resistance in parallel of connecting, the second discharge tube FGD2, the 3rd thermistor PTC3 connections Pick shell line.
3. lightning protection circuit according to claim 2, it is characterised in that the piezo-resistance in parallel includes:First pressure-sensitive electricity Hinder MOV1 and the second piezo-resistance MOV2.
4. lightning protection circuit according to claim 3, it is characterised in that second lightning protection circuit includes:First discharge tube FGD1, the 4th thermistor PTC4, the 3rd piezo-resistance MOV3,
The zero line passes through the first discharge tube FGD1, the 4th thermistor PTC4, the 3rd piezo-resistance MOV3 connections of connecting The live wire.
5. lightning protection circuit according to claim 4, it is characterised in that the first thermistor PTC1, second heat Quick resistance PTC2, the 3rd thermistor PTC3, the 4th thermistor PTC4 are semistor.
6. lightning protection circuit according to claim 4, it is characterised in that the first discharge tube FGD1 and the second discharge tube FGD2 is solid discharging tube or gas-discharge tube.
7. lightning protection circuit according to claim 4, it is characterised in that the first piezo-resistance MOV1, the second pressure-sensitive electricity It is zinc oxide varistor, silicon carbide varistor, metal oxide piezo-resistance to hinder MOV2, the 3rd piezo-resistance MOV3 At least one of device, germanium (silicon) piezoresistor, barium titanate piezoresistor.
8. lightning protection circuit according to claim 1, it is characterised in that the voltage that the lightning protection circuit is produced by thunderbolt Pressure voltage is not more than 20KV.
9. lightning protection circuit according to claim 1, it is characterised in that the pressure voltage over the ground of the lightning protection circuit is less than 1600V。
10. a kind of LED drive power, it is characterised in that it is any described anti-that the LED drive power includes claim 1-9 Thunder and lightning road.
CN201621469942.5U 2016-12-29 2016-12-29 A kind of lightning protection circuit and LED drive power Active CN206413222U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621469942.5U CN206413222U (en) 2016-12-29 2016-12-29 A kind of lightning protection circuit and LED drive power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621469942.5U CN206413222U (en) 2016-12-29 2016-12-29 A kind of lightning protection circuit and LED drive power

Publications (1)

Publication Number Publication Date
CN206413222U true CN206413222U (en) 2017-08-15

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CN201621469942.5U Active CN206413222U (en) 2016-12-29 2016-12-29 A kind of lightning protection circuit and LED drive power

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109268761A (en) * 2018-08-17 2019-01-25 芜湖左舒电子商务有限公司 A kind of solar lighting street lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109268761A (en) * 2018-08-17 2019-01-25 芜湖左舒电子商务有限公司 A kind of solar lighting street lamp

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