CN207753451U - A kind of lightning protection device - Google Patents
A kind of lightning protection device Download PDFInfo
- Publication number
- CN207753451U CN207753451U CN201721840007.XU CN201721840007U CN207753451U CN 207753451 U CN207753451 U CN 207753451U CN 201721840007 U CN201721840007 U CN 201721840007U CN 207753451 U CN207753451 U CN 207753451U
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- network interface
- lightning protection
- protection device
- signal wire
- network
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Abstract
The utility model discloses a kind of lightning protection devices, including first network interface, the second network interface, prime discharge tube, interlaminated resistance and rear class antistatic diode, every signal wire of first network interface is correspondingly connected with by the signal wire of an interlaminated resistance and the second network interface；One end of the corresponding interlaminated resistance of every signal wire and signal wire of first network interface is grounded by a prime discharge tube, and every signal wire of first network interface and the other end of the corresponding interlaminated resistance of every signal wire are grounded by a rear class antistatic diode；It realizes to the lightning protection of the network equipment, the network equipment is protected by effects of lightning and destruction, not improve the lightning protection capability of the network equipment.
Description
Technical field
The utility model is related to thunder resisting equipment field, especially a kind of lightning protection device.
Background technology
Thunder and lightning causes the range of natural calamity to expand increasingly, and especially Lightning Electromagnetic Pulse is widely used to all trades and professions
The destruction of microelectronic device and system.Due to lacking lightning-arrest consciousness, seldom it is considered as keeping away in PC or the network equipment
The design of thunder.Once connected network line is struck by lightning, voltage surge caused by moment can rapidly be passed by network connection
It is multicast on PC or the network equipment, equipment burnout is caused even to bring the danger of electric shock to user.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of lightning protection device, is set for improving network
Standby lightning protection capability protects the network equipment not by effects of lightning and destruction.
Technical solution used by the utility model is：A kind of lightning protection device, the lightning protection device include first network interface,
Two network interfaces, prime discharge tube, interlaminated resistance and rear class antistatic diode, every signal wire of the first network interface
It is correspondingly connected with by the signal wire of an interlaminated resistance and the second network interface；Every signal wire of the first network interface with
And one end of the corresponding interlaminated resistance of signal wire is grounded by a prime discharge tube, every signal of second network interface
The other end of line and the corresponding interlaminated resistance of every signal wire is grounded by a rear class antistatic diode.
Further, the first network interface and the second network interface are RJ45 network interfaces.
Further, the prime discharge tube is gas-discharge tube.
Further, the resistance value of the interlaminated resistance is 10 ohm.
Further, the lightning protection device further includes shell, the first network interface, the second network interface, prime electric discharge
Pipe, interlaminated resistance and rear class antistatic diode are arranged in the shell.
Further, the material of the shell is metal, conductive rubber or organic conductive material.
The utility model has the beneficial effects that：
A kind of lightning protection device of the utility model includes first network interface, the second network interface, prime discharge tube, interlaminated resistance
The letter for passing through an interlaminated resistance and the second network interface with rear class antistatic diode, every signal wire of first network interface
Number line is correspondingly connected with；One end of the corresponding interlaminated resistance of every signal wire and signal wire of first network interface passes through before one
Grade discharge tube ground connection, every signal wire of first network interface and the other end of the corresponding interlaminated resistance of every signal wire pass through
One rear class antistatic diode ground connection；Realize to the lightning protection of the network equipment, protect the network equipment not by effects of lightning with
It destroys, improves the lightning protection capability of the network equipment.
Description of the drawings
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is an a kind of specific embodiment circuit diagram of lightning protection device of the utility model；
Fig. 2 is an a kind of specific embodiment vertical view of lightning protection device of the utility model；
Fig. 3 is an a kind of specific embodiment left view of lightning protection device of the utility model；
Fig. 4 is an a kind of specific embodiment right view of lightning protection device of the utility model；
Fig. 5 is an a kind of specific embodiment rearview of lightning protection device of the utility model.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
A kind of lightning protection device, with reference to figure 1, Fig. 1 is an a kind of specific embodiment circuit diagram of lightning protection device of the utility model,
Including first network interface, the second network interface, prime discharge tube, interlaminated resistance and rear class antistatic diode, prime electric discharge
Pipe is ceramic gas discharge tube GDT, and the resistance value of interlaminated resistance is 10 ohm；Every signal wire of first network interface passes through one
The signal wire of interlaminated resistance and the second network interface is correspondingly connected with；The every signal wire and signal wire of first network interface correspond to
One end of interlaminated resistance be grounded by a prime discharge tube, the every signal wire and every signal wire of the second network interface
The other end of corresponding interlaminated resistance is grounded by a rear class antistatic diode.In the present embodiment, first network interface and
Second network interface is RJ45 network interfaces, i.e. the first RJ45 network interfaces and the 2nd RJ45 network interfaces, and RJ45 network interfaces include 8 signal wires, right
That answers has 8 interlaminated resistances (R1-R8), 8 ceramic gas discharge tubes (GDT1-GDT8) and 8 rear class antistatic diodes
(ESD1-ESD8), as shown in Figure 1, by the first RJ45 network interfaces, the 2nd RJ45 network interfaces first signal wire for, first letter
One end of number line and corresponding resistance R1 are grounded by ceramic gas discharge tube GDT1, first signal of the 2nd RJ45 network interfaces
The other end of line and corresponding resistance R1 are grounded by corresponding rear class antistatic diode ESD1, the connection of remaining signal wire
It is identical as the connection of first signal wire, it repeats no more.
In actual use, lightning protection device accesses network by first network interface, then is set with network by the second network interface
Standby connection, the network equipment utilizes the lightning protection device of the utility model, when the voltage for having lightning surge waveform to be added to two network interfaces
When reaching internal GDT (ceramic gas discharge tube) breakdown voltage (this GDT type selecting is 90V), GDT starts to discharge, and by high impedance
Become Low ESR, two network interface both end voltages is made to be no more than breakdown voltage, plays and release thunder and lightning overcurrent and limited electricity
Pressure acts on.GDT is generally placed upon line input, as level-one device of surge protector, bears big surge waveform.The insulation of GDT
Resistance is very big, parasitic capacitance very little, almost nil to effect of signals.And interlaminated resistance (R1-R8) is added and plays coordinative role, make
The larger thunder and lightning waveform of wave head rising steepness can be effectively inhibited by obtaining lightning protection device, improve lightning protection action sensitivity.In addition, due to
GDT releases after overcurrent over-voltage terminates, and depositing for discharge tube arc channel can be maintained by the operating voltage of protection system
Generating residual voltage.So and be further added by some protection elements behind GDT and make second class protection, to inhibit residual voltage, the utility model
In, two level protection is done using ESD protective device；The rated voltage of ESD is higher than by the normal operating voltage of protection system, can be right
The residual voltage that GDT is generated is released.Therefore, not only nominal discharge current is big for the lightning protection device of the utility model, and the response time is fast, high
Transmission rate；And with overcurrent, overvoltage, clamped defencive function, centralization protection, installation maintenance is simple and convenient, is connect for network
All signal wires of mouth provide full guard；Can be the network SPD on signal side of the designs such as various web-transporting devices,
Suitable for various web server computers, router, HUB, interchanger, broadband etc., it is installed on data line lightning arresting subregion
On network interface (such as RJ45 network interfaces) between the interfaces LPZ1-3.
It is an a kind of tool of lightning protection device of the utility model referring to figs. 2 to Fig. 5, Fig. 2 as being further improved for technical solution
Body embodiment vertical view；Fig. 3 is an a kind of specific embodiment left view of lightning protection device of the utility model；Fig. 4 is the utility model
An a kind of specific embodiment right view of lightning protection device；Fig. 5 is an a kind of specific embodiment rearview of lightning protection device of the utility model；
Lightning protection device further includes shell, first network interface, the second network interface, prime discharge tube, interlaminated resistance and rear class antistatic two
Pole pipe is arranged inside the shell.Further, the material of shell is metal, conductive rubber or organic conductive material so that shell has
There is screening ability, the conductive capability of shell is better, and screening ability is better.Specifically, first network interface 2, the second network connect
Mouth 3 is divided into the both sides of shell 1；The rear side of shell 1 is provided with ground wire PE；In the present embodiment, the material of shell 1 is closed for metal
Gold.Using the metallic alloy shell with screening ability, need to protect internal signal transmission from electromagnetic interference.When electromagnetic wave is met
Can all it be reflected or be torn open to overwhelming majority when metallic alloy shell and be penetrated, seldom a part enters the inside of metallic alloy shell, and
Electric current is formed to consume in the form of thermal energy.The better metal alloy of electric conductivity, shield effectiveness is better, also with metal
Thickness is related, and thicker shield effectiveness is better.
It is to be illustrated to the preferable implementation of the utility model, but the invention is not limited to the reality above
Example is applied, those skilled in the art can also make various equivalent variations without departing from the spirit of the present invention
Or replace, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (6)
1. a kind of lightning protection device, the lightning protection device includes first network interface and the second network interface, which is characterized in that the lightning protection
Device further includes prime discharge tube, interlaminated resistance and rear class antistatic diode, and every signal wire of the first network interface is logical
The signal wire for crossing an interlaminated resistance and the second network interface is correspondingly connected with；Every signal wire of the first network interface and
One end of the corresponding interlaminated resistance of signal wire is grounded by a prime discharge tube, every signal wire of second network interface
And the other end of the corresponding interlaminated resistance of every signal wire is grounded by a rear class antistatic diode.
2. lightning protection device according to claim 1, which is characterized in that the first network interface and the second network interface are
RJ45 network interfaces.
3. lightning protection device according to claim 1, which is characterized in that the prime discharge tube is gas-discharge tube.
4. lightning protection device according to claim 1, which is characterized in that the resistance value of the interlaminated resistance is 10 ohm.
5. lightning protection device according to any one of claims 1 to 4, which is characterized in that the lightning protection device further includes shell, described
First network interface, the second network interface, prime discharge tube, interlaminated resistance and rear class antistatic diode are arranged in the shell
It is interior.
6. lightning protection device according to claim 5, which is characterized in that the material of the shell is metal, conductive rubber or has
Machine conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721840007.XU CN207753451U (en) | 2017-12-25 | 2017-12-25 | A kind of lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721840007.XU CN207753451U (en) | 2017-12-25 | 2017-12-25 | A kind of lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207753451U true CN207753451U (en) | 2018-08-21 |
Family
ID=63150746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721840007.XU Active CN207753451U (en) | 2017-12-25 | 2017-12-25 | A kind of lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207753451U (en) |
-
2017
- 2017-12-25 CN CN201721840007.XU patent/CN207753451U/en active Active
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