CN209658901U - A kind of lightning protection device - Google Patents
A kind of lightning protection device Download PDFInfo
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- CN209658901U CN209658901U CN201920123036.7U CN201920123036U CN209658901U CN 209658901 U CN209658901 U CN 209658901U CN 201920123036 U CN201920123036 U CN 201920123036U CN 209658901 U CN209658901 U CN 209658901U
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- lightning
- protection module
- varistor
- power supply
- protection
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Abstract
The utility model relates to electronic technology fields; more particularly to a kind of lightning protection device; L, N-terminal are exported including input terminal connection power supply; first output end connects electrical equipment; first lightning-protection module of second output terminal ground connection, input terminal are connected to power supply output L, N-terminal, the second lightning-protection module of output end ground connection; input terminal is connected to the first lightning-protection module output end, the third lightning-protection module of output end ground connection.Realize following effect by the utility model: the energy that 1. lightning strokes generate is by the first lightning-protection module, the second lightning-protection module and third lightning-protection module; lightning stroke can be substantially reduced and the damage of the huge pulse energy of generation; to play protection electrical equipment, and thunder and lightning is prevented to the common mode and DM EMI of electrical equipment；2. power device can be effectively connected to ground by fastening bolt, avoid being grounded do not connect bad connection or tie point connection resistance it is excessive and lightning protection is caused to be failed.
Description
Technical field
The utility model relates to electronic technology field more particularly to a kind of lightning protection devices.
Background technique
Spacious and higher position electrical equipment outdoors is installed, is easy to meeting when meeting the peak time that thunderstorm weather occurs
It strikes and damages by thunder and lightning, prevention just becomes the necessary of protection LED street lamp lamps and lanterns component devices by thunder and lightning impact and works.
There is lightning strike accident for prevention, existing lightning-protection method has:
1. lightning protection equipotential link
For the potential difference for thoroughly eliminating destructive caused by thunder and lightning, power supply line, signal wire, metallic conduit etc. will use over-voltage
Protector carries out equipotential link, and the interface of each internal layer protection zone will also carry out partial equivalent potential connection, each part etc.
Current potential junction will interconnect, and finally be connected at main body equipotential；
2. outside lightning protection is combined with internal lighting protection
All it is conductor material outside electrical equipment typically now, itself is equivalent to a lightning rod, in design must
Downlead and earth mat must be installed, these systems constitute external lightning-protection system.Internal lighting protection system refers to be passed through inside electrical equipment
The modes such as ground connection, setting voltage protection protect equipment.The system can prevent the overvoltage of inductive lightning and other forms from invading
Enter, cause power supply damage, this be that external lightning-protection system not can guarantee.
Although above two method can play the role of lightning protection to a certain extent, can not discharge rapidly can
The big energy of equipment is destroyed to greatly, remaining energy can still damage electrical equipment.
Utility model content
To solve the above problems, lightning stroke energy residual voltage can be made to be down to most the utility model proposes a kind of lightning protection device
It is low, it is ensured that electrical equipment trouble free service.
A kind of lightning protection device, including input terminal connection power supply export L, N-terminal, and the first output end connects electrical equipment,
First lightning-protection module of second output terminal ground connection, further includes:
Input terminal is connected to power supply output L, N-terminal, the second lightning-protection module of output end ground connection, the second lightning-protection module packet
Include fuse FUSE1, differential mode varistor MOV1, common mode varistor MOV2, MOV3 and gas-discharge tube GDT1, the guarantor
Dangerous silk FUSE1 is connected in series in the power supply output end L, and described one end differential mode varistor MOV1 connects fuse FUSE1, the other end
It connects power supply and exports N-terminal, described one end common mode varistor MOV2 connects fuse FUSE1, and the other end connects gas-discharge tube
The other end connection power supply of one end of GDT1, the gas-discharge tube GDT1 exports the end PE, the common mode varistor MOV3 mono-
End connection power supply exports N-terminal, and the other end connects one end of gas-discharge tube GDT1；
Input terminal is connected to the first lightning-protection module output end, the third lightning-protection module of output end ground connection.
Preferably, second lightning-protection module includes: differential mode varistor MOV4, the differential mode varistor MOV4 and poor
Mould varistor MOV1 is connected in parallel.
Preferably, the third lightning-protection module includes: fuse FUSE2, common mode varistor MOV5, MOV6 and gas
Discharge tube GDT2, the fuse FUSE2 are connected in series in the first lightning-protection module positive output end DC+, the common mode varistor
The one end MOV5 connects fuse FUSE2, and the other end connects one end and the common mode varistor MOV6 of gas-discharge tube GDT2
The other end connection power supply of one end, the gas-discharge tube GDT2 exports the end PE, the other end of the common mode varistor MOV6
Connect the first lightning-protection module negative output terminal DC-.
It preferably, further include fastening bolt, the shell that the fastening bolt passes through electrical equipment is connected to ground.
By using the utility model, following effect may be implemented:
1. the energy that lightning stroke generates passes through the first lightning-protection module, the second lightning-protection module and third lightning-protection module, can be significantly
It reduces lightning stroke and the damage of the huge pulse energy of generation, to play protection electrical equipment, and has prevented thunder and lightning to electricity consumption
The common mode and DM EMI of equipment；
2. power device can be effectively connected to ground by fastening bolt, avoids being grounded and do not connect or bad connection, or
Tie point connection resistance is excessive and lightning protection is caused to be failed.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the module connection diagram of the utility model embodiment；
Fig. 2 is the circuit diagram of the second lightning-protection module in the utility model embodiment；
Fig. 3 is the circuit diagram of third lightning-protection module in the utility model embodiment；
Fig. 4 is the structural schematic diagram of fastening screw in the utility model embodiment.
Specific embodiment
Below in conjunction with attached drawing, the technical solution of the utility model is further described, but the utility model and unlimited
In these embodiments.
The main thought of the utility model be by the first lightning-protection module, the second lightning-protection module and third lightning-protection module,
It substantially reduces lightning stroke and the damage of the huge pulse energy of generation, to play protection electrical equipment, and has prevented thunder and lightning pair
The common mode and DM EMI of electrical equipment.
As shown in Figure 1, the utility model embodiment provides a kind of lightning protection device, including input terminal connection power supply output
L, N-terminal, the first output end connect electrical equipment, and the first lightning-protection module of second output terminal ground connection, it is defeated that input terminal is connected to power supply
L, N-terminal out, the second lightning-protection module of output end ground connection, input terminal are connected to the first lightning-protection module output end, output end ground connection
Third lightning-protection module.
The energy generated that is struck by lightning first enters from power input, flows through the second lightning-protection module, and the second lightning-protection module is by big portion
Lightning stroke energy is divided to be discharged into ground；Once most of energy of remnants flows through the first lightning-protection module afterwards, and the first lightning-protection module will be residual
Remaining most of energy is discharged into ground；Nubbin after having the protection of the second lightning-protection module afterwards flows through third lightning-protection module, third
Secondary remaining lightning stroke energy is discharged into ground by lightning-protection module protection；Lightning stroke energy residual voltage can be used to minimize, it is ensured that electricity consumption is set
Standby trouble free service.
It in the present embodiment, built in the first lightning-protection module within the control module, mainly include pressure-sensitive circuit and insurance
Silk.Since the internal circuit of the first lightning-protection module is the prior art, no longer it is described in detail in the present embodiment.
As shown in Fig. 2, in the present embodiment, second lightning-protection module includes fuse FUSE1, differential mode varistor
MOV1, common mode varistor MOV2, MOV3 and gas-discharge tube GDT1, it is defeated that the fuse FUSE1 is connected in series in power supply
The end L out, described one end differential mode varistor MOV1 connect fuse FUSE1, and the other end connects power supply and exports N-terminal, the common mode
The one end varistor MOV2 connects fuse FUSE1, and the other end connects one end of gas-discharge tube GDT1, the gas-discharge tube
The other end connection power supply of GDT1 exports the end PE, and the one end common mode varistor MOV3 connection power supply exports N-terminal, and the other end connects
Connect one end of gas-discharge tube GDT1.When voltage big by thunder and lightning, voltage is more than that differential mode varistor MOV1, common mode are pressure-sensitive
Resistance MOV2, MOV3, gas-discharge tube GDT1 arrive the big energy that rapid releases can destroy electrical equipment when protecting threshold value
Ground.
As the preferred of the present embodiment, the second lightning-protection module includes: differential mode varistor MOV4, the differential mode varistor
MOV4 is connected in parallel with differential mode varistor MOV1.
As shown in figure 3, in the present embodiment, third lightning-protection module include: fuse FUSE2, common mode varistor MOV5,
MOV6 and gas-discharge tube GDT2, the fuse FUSE2 are connected in series in the first lightning-protection module positive output end DC+, described
Common mode one end varistor MOV5 connects fuse FUSE2, and the other end connects one end and the common mode pressure of gas-discharge tube GDT2
The other end connection power supply of one end of quick resistance MOV6, the gas-discharge tube GDT2 exports the end PE, the common mode varistor
The other end of MOV6 connects the first lightning-protection module negative output terminal DC-.It is defeated in the first lightning-protection module when voltage big by thunder and lightning
Rapid releases can be destroyed to the big energy of equipment to greatly when voltage is more than varistor, gas discharge protection of pipe threshold value out
Ground, reduces the potential difference of protected equipment end, to play the role of protecting electrical equipment.
As shown in figure 4, lightning protection device further includes fastening bolt 1 as the preferred of the present embodiment, the fastening bolt 1 is worn
The shell for crossing electrical equipment is connected to ground.The specification of fastening bolt 1: interior hexagonal stainless steel M6 × 30, M8 × 30, M10 × 30,
The bolt of M12 × 30 cone.Using the fastening bolt 1 that can abolish the connection of lamp stand surface lacquer safely, the shell and ground of electric equipment are used
Connection；First lightning-protection module, the second lightning-protection module and third lightning-protection module form an equipotential electrical grounding；It avoids being grounded
Do not connect or bad connection or tie point connection resistance it is excessive and lightning protection is caused to be failed.
Those skilled in the art of the present invention can do described specific embodiment various
The similar mode of modify or supplement or adopt substitutes, but without departing from the spirit of the present application or surmounts appended right and want
Seek range defined in book.
Claims (4)
1. a kind of lightning protection device, including input terminal connection power supply export L, N-terminal, the first output end connects electrical equipment, the
First lightning-protection module of two output ends ground connection, which is characterized in that further include:
Input terminal is connected to power supply output L, N-terminal, and the second lightning-protection module of output end ground connection, second lightning-protection module includes protecting
Dangerous silk FUSE1, differential mode varistor MOV1, common mode varistor MOV2, MOV3 and gas-discharge tube GDT1, the fuse
FUSE1 is connected in series in the power supply output end L, and described one end differential mode varistor MOV1 connects fuse FUSE1, other end connection
Power supply exports N-terminal, and described one end common mode varistor MOV2 connects fuse FUSE1, and the other end connects gas-discharge tube GDT1
One end, the other end connection power supply of the gas-discharge tube GDT1 exports the end PE, and described one end common mode varistor MOV3 connects
Power supply output N-terminal is connect, the other end connects one end of gas-discharge tube GDT1；
Input terminal is connected to the first lightning-protection module output end, the third lightning-protection module of output end ground connection.
2. lightning protection device according to claim 1, which is characterized in that second lightning-protection module includes: differential mode pressure
Quick resistance MOV4, the differential mode varistor MOV4 are connected in parallel with differential mode varistor MOV1.
3. lightning protection device according to claim 1, which is characterized in that the third lightning-protection module includes: fuse
FUSE2, common mode varistor MOV5, MOV6 and gas-discharge tube GDT2, it is anti-that the fuse FUSE2 is connected in series in first
Thunder module positive output end DC+, described one end common mode varistor MOV5 connect fuse FUSE2, and the other end connects gas discharge
One end of pipe GDT2 and one end of common mode varistor MOV6, the other end connection power supply output of the gas-discharge tube GDT2
The other end at the end PE, the common mode varistor MOV6 connects the first lightning-protection module negative output terminal DC-.
4. lightning protection device according to claim 1, which is characterized in that it further include fastening bolt, the fastening bolt
Shell across electrical equipment is connected to ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920123036.7U CN209658901U (en) | 2019-01-24 | 2019-01-24 | A kind of lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920123036.7U CN209658901U (en) | 2019-01-24 | 2019-01-24 | A kind of lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209658901U true CN209658901U (en) | 2019-11-19 |
Family
ID=68522448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920123036.7U Active CN209658901U (en) | 2019-01-24 | 2019-01-24 | A kind of lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209658901U (en) |
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2019
- 2019-01-24 CN CN201920123036.7U patent/CN209658901U/en active Active
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221011 Address after: Huahong building, 248 Tianmushan Road, Xihu District, Hangzhou City, Zhejiang Province, 310013 Patentee after: HANGZHOU HONYAR ELECTRICAL Co.,Ltd. Address before: Huahong building, 248 Tianmushan Road, Xihu District, Hangzhou City, Zhejiang Province, 310013 Patentee before: HANGZHOU HONYAR ELECTRICAL Co.,Ltd. Patentee before: HANGZHOU HONYAR-UNITY OPTOELECTRONIC TECHNOLOGY Co.,Ltd. |