CN208738838U - Eight gauze network Spark gap devices - Google Patents

Abstract

Eight gauze network Spark gap devices, are related to Spark gap engineering device technique field, in order to solve the problems, such as the device of existing protection electromagnetic pulse since preventive means is single bad to the protection effect of network communication apparatus.Eight gauze network Spark gap device of the utility model, setting includes brass nickel plating shell, waterproof grommet, shielding case, Transient Suppression Diode, varistor, multistage protection means including gas-discharge tube and equipment ground, it can will include harsh height, low temperature and salt fog, hygrothermal environment and thunderstorm weather, nuclear electromagnetic pulse (NEMP), influence of the overvoltage and electrical surge electric current caused by high-altitude electromagnetic pulse (HEMP) and Lightning Electromagnetic Pulse (LEMP) to network communication apparatus is protected to lower level, communicating network communication apparatus under the interference by electromagnetic pulse can operate normally and equipment is not damaged.The electromagnetic pulse interference that the utility model is suitable for being subject to eight line network communication apparatus is protected.

Description

Eight gauze network Spark gap devices

Technical field

The utility model relates to Spark gap engineering device technique fields.

Background technique

With the fast development of electronic technology, network communications technology has also obtained great promotion, and at the same time, network is logical The safety and stability of news is particularly important.And the safety and stability of network communication can be had an impact because Element, in addition to some technical problems and communication appliance fault and weather, weather reason, main disturbing factor includes nuclear electromagnetic arteries and veins Overvoltage and electrical surge electric current caused by punching (NEMP), high-altitude electromagnetic pulse (HEMP) and Lightning Electromagnetic Pulse (LEMP). Above-mentioned disturbing factor, which has, to be naturally occurred, and is also had and is artificially generated, modern network communication apparatus and technology facing above-mentioned factor Interference when be also encountered by many problems.For example, modern military forces use is since to network communications technology equipment, there are the dependences of height Property, so that network communications technology equipment, which becomes, directly affects weapon system or even entire military system fullfledged combat capability Key factor, if network communications technology equipment is by nuclear electromagnetic pulse, high-altitude electromagnetic pulse and Lightning Electromagnetic Pulse high energy The impact of amount and be destroyed, then can seriously undermine the fighting capacity of modern military forces use.Therefore, the impact of high intensity EMP is carried out Protection becomes current network communication top priority urgently to be resolved.

Electromagnetic pulse has the characteristics that amplitude is big, action time is short, frequency spectrum is wide and sphere of action is wide, can mainly cause electricity Pressure or electrical surge electric current, this can not only make network communication apparatus generate malfunction or even disabler, serious also to will cause The hardware damage of communication apparatus.Influence of the electromagnetic pulse to communication apparatus can be divided into four ranks: upset, degrade, damage and It destroys, the judgement for influencing rank depends primarily on that power caused by electromagnetic pulse, it is the distance between with target and electromagnetism arteries and veins Rush characteristic and the protective capacities of target etc. of radiation.

Currently, there is the device of some protection electromagnetic pulses in the market, protective action can be played to network communication apparatus, but It is existing protection electromagnetic pulse device due to preventive means is single thus to the protection effect of network communication apparatus it is bad, in turn Cause communication security and stability be affected even hardware be damaged.Therefore, the device of existing protection electromagnetic pulse It need to be further improved.

Utility model content

The purpose of this utility model is that in order to solve the device of existing protection electromagnetic pulse since preventive means is single It is bad to the protection effect of network communication apparatus, it in turn results in communication security and stability is affected or even hardware is damaged The problem of hurting provides eight gauze network Spark gap devices.

Eight gauze network Spark gap device of the utility model, including shell, sealing ring, protected input terminal RJ45 are inserted Seat, not protected output end RJ45 socket, nut, shielding case, printed circuit board, TVS pipe array, gas-discharge tube and pressure-sensitive electricity Resistance.Wherein, printed circuit board plays undertaking effect to entire circuit, and TVS pipe array includes four Transient Suppression Diodes, respectively For TVS1, TVS2, TVS3 and TVS4, varistor include VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7, VDR8, VDR9 and VDR10, gas-discharge tube include GDT1, GDT2, GDT3 and GDT4.Eight gauze network Spark gap of the utility model Device is a cylindrical shape, is carved with spiral thread in outer circle, and close to middle position setting, there are two six-sided nuts. Crust of the device is brass nickel plating material, and eight gauze network Spark gap device of the utility model can be made, which to adapt to particular surroundings, to be made With requiring, normal function and performance can be kept under harsh high and low temperature and salt fog, hygrothermal environment.Eight line network electromagnetic arteries and veins Protective device inner wall is rushed with one layer of sealing ring, waterproof can be played the role of.Device internal diameter middle position is equipped with shielding case, screen It covers and is connected between cover and printed circuit board with soldering and welding, shielding, insulating effect can be played to high voltage and surge current, from And eight line network communication systems are protected.Firstly, protected input terminal RJ45 socket is separately connected TVS1, TVS2, TVS3 With the anode of TVS4 and one end of VDR9, the cathode of TVS1 is separately connected the cathode of TVS2 and one end of VDR1 and VDR3, The cathode of TVS2 is separately connected the cathode of TVS1 and one end of VDR1 and VDR3, and the other end of VDR1 connects one end of VDR2, The other end of VDR2 is separately connected the other end of VDR4 and one end of GDT1 and GDT2, and the other end of VDR3 connects the one of VDR4 End, the other end of VDR4 is separately connected the other end of VDR2 and one end of GDT1 and GDT2, the other end of GDT1 are separately connected One end and ground connection of the other end of GDT2, VDR10, GDT3 and GDT4 and not protected output end RJ45 socket, GDT2's is another One end is separately connected the other end of GDT1, VDR10, GDT3 and GDT4 and one end of not protected output end RJ45 socket and connects Ground, one end of the other end connection VDR10 of VDR9, the other end of VDR10 are separately connected the another of GDT1, GDT2, GDT3 and GDT4 One end and ground connection of one end and not protected output end RJ45 socket, the cathode of TVS3 be separately connected TVS4 cathode and One end of VDR5 and VDR7, the cathode of TVS4 are separately connected the cathode of TVS3 and one end of VDR5 and VDR7, and VDR5's is another One end of end connection VDR6, the other end of VDR6 are separately connected the other end of VDR8 and one end of GDT3 and GDT4, VDR7's The other end connects one end of VDR8, and the other end of VDR8 is separately connected the other end of VDR6 and one end of GDT3 and GDT4, The other end of GDT3 is separately connected the other end and not protected output end RJ45 socket of GDT1, GDT2, GDT4 and VDR10 One end and ground connection, the other end of GDT4 be separately connected GDT1, GDT2, GDT3 and VDR10 the other end and not protected output Hold one end and the ground connection of RJ45 socket, one end ground connection of not protected output end RJ45 socket.

Eight gauze network Spark gap device of the utility model, wherein TVS1, TVS2, TVS3 and TVS4 are all made of type Number Transient Suppression Diode for being 5KP5.0CA, highest can bear the electric current of the voltage of 40KV, 543A, VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7 and VDR8 are all made of the varistor of model 20D511K, and highest can bear 6500A Electric current, GDT1, GDT2, GDT3 and GDT4 be all made of the gas-discharge tube of 6KV model UN2H8, and VDR9 and VDR10 are 4.7 Ohm Low ESR varistor can guarantee the communication signal transmission of eight line network communication systems in normal operation.

One end of eight gauze network Spark gap device of the utility model, protected input terminal RJ45 socket connects transient state Inhibit the anode of diode, one end of the cathode connection varistor of Transient Suppression Diode, the other end connection of varistor The other end of one end of gas-discharge tube, gas-discharge tube connects not protected output end RJ45 socket.Since transient state inhibits two Pole pipe, varistor, gas-discharge tube response speed are followed successively by Transient Suppression Diode, varistor, gas from fast to slow and put Fulgurite, when pulse of the protected input terminal RJ45 socket by high voltage and surge current, therefore Transient Suppression Diode can With the response within first time, TVS1, TVS2, TVS3 and TVS4 shunt high voltage and surge current, with nanosecond The high impedance of its two interpolar is become Low ESR, absorbs up to thousands of watts of surge power, make the voltage clamp of two interpolars by speed In a predetermined value, next when high voltage appears in the two of VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7 and VDR8 Interpolar, VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7 and VDR8 can be by voltage clampings to a relatively-stationary electricity Pressure value, when remaining high voltage and surge current appear in two interpolars of GDT1, GDT2, GDT3 and GDT4, since high voltage is made With two interpolars of GDT1, GDT2, GDT3 and GDT4 start to generate non-uniform electric field, under this electric field action, gas-discharge tube pipe Interior inert gas starts to dissociate, when applied voltage increase to make the two poles of the earth between field strength be more than gas dielectric strength when, the two poles of the earth it Between gap will be breakdown, conduction state is converted by original state of insulation, voltage after conducting between discharge tube the two poles of the earth dimension It holds in the low voltage level putting electric arc channel and being determined, and remaining voltage and surge current will import underground by earth conductor cable, by Response time and the reaction speed of nanosecond are all had in Transient Suppression Diode, gas-discharge tube, varistor, therefore is passed through The voltage and current that VDR9 and VDR10 is transferred to not protected output end RJ45 socket is respectively less than eight line network communication apparatus most Big operating voltage and electric current, the maximum working voltage of eight line network communication apparatus are 55V, maximum operating currenbt 250MA.This reality It with novel eight gauzes network Spark gap device, is obtained through repetition test data statistics, than the dress of existing protection electromagnetic pulse It sets and 30% or more is averagely improved to the protection effect of network communication apparatus, guaranteeing interference of the communication apparatus by electromagnetic pulse Lower hardware will not damage and can guarantee that communication security and stability are unaffected.

Eight gauze network Spark gap device of the utility model, being equipped with includes brass nickel plating shell, waterproof grommet, screen The multistage protection means including cover, Transient Suppression Diode, varistor and gas-discharge tube etc. are covered, can will include harsh High and low temperature and salt fog, hygrothermal environment and thunderstorm weather, nuclear electromagnetic pulse (NEMP), high-altitude electromagnetic pulse (HEMP) and thunder and lightning Influence of the overvoltage and electrical surge electric current caused by electromagnetic pulse (LEMP) to network communication apparatus is protected to lower water Flat, communicating network communication apparatus under the interference by electromagnetic pulse can operate normally and equipment is not damaged. Eight gauze network Spark gap device of the utility model, is directly mounted to be protected on faraday cup or metal shell, And installing Spark gap device additional not influences the function and performance of protected device.In addition, due to eight line of the utility model Network electromagnetic pulse protective device is equipped with multistage protection means, and eight gauze network Spark gap device of the utility model is installed In wheeled communication command vehicle, in the earth-free situation of device, mistake caused by the electrical surge electric current generated to electromagnetic pulse Voltage similarly can be carried out effective protection.

Detailed description of the invention

Fig. 1 is the cross-sectional view of eight gauze network Spark gap device of the utility model；

Fig. 2 is the circuit diagram of the printed circuit board of eight gauze network Spark gap device of the utility model；

Fig. 3 is the main view of eight gauze network Spark gap device of the utility model；

Fig. 4 is the left view of eight gauze network Spark gap device of the utility model；

Wherein: 1. shells；2. sealing ring；3. protected input terminal RJ45 socket；4. not protected output end RJ45 socket； 5. nut；6. shielding case；7. printed circuit board；8.TVS pipe array；9. Transient Suppression Diode；10. gas-discharge tube；11. pressure Quick resistance；TVS1, TVS2, TVS3 and TVS4 be Transient Suppression Diode, VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7, VDR8, VDR9 and VDR10 are varistor, and GDT1, GDT2, GDT3 and GDT4 are gas-discharge tube.

Specific embodiment

Specific embodiment 1: eight gauze network Spark gap device of the utility model, including protected input terminal RJ45 socket 3, not protected output end RJ45 socket 4, printed circuit board 7, TVS pipe array 8, gas-discharge tube 10 and pressure-sensitive electricity Resistance 11；Wherein, printed circuit board 7 plays undertaking effect to entire circuit, and TVS pipe array 8 includes four Transient Suppression Diodes TVS1, TVS2, TVS3 and TVS4, varistor 11 include VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7, VDR8, VDR9 and VDR10, gas-discharge tube 10 include GDT1, GDT2, GDT3 and GDT4；

Protected input terminal RJ45 socket 3 be separately connected TVS1, TVS2, TVS3 and TVS4 anode and VDR9 one End, the cathode of TVS1 is separately connected the cathode of TVS2 and one end of VDR1 and VDR3, the cathode of TVS2 are separately connected TVS1's One end of cathode and VDR1 and VDR3, one end of the other end connection VDR2 of VDR1, the other end of VDR2 are separately connected VDR4 The other end and GDT1 and GDT2 one end, one end of the other end connection VDR4 of VDR3, the other end of VDR4 is separately connected The other end and GDT1 of VDR2 and one end of GDT2, the other end of GDT1 are separately connected GDT2, VDR10, GDT3 and GDT4 One end and ground connection of the other end and not protected output end RJ45 socket 4, the other end of GDT2 be separately connected GDT1, VDR10, One end and ground connection of the other end of GDT3 and GDT4 and not protected output end RJ45 socket 4, the other end connection of VDR9 One end of VDR10, the other end of VDR10 be separately connected GDT1, GDT2, GDT3 and GDT4 the other end and not protected output The one end and ground connection, the cathode of TVS3 for holding RJ45 socket 4 are separately connected the cathode of TVS4 and one end of VDR5 and VDR7, TVS4 Cathode be separately connected the cathode of TVS3 and one end of VDR5 and VDR7, one end of the other end connection VDR6 of VDR5, VDR6 The other end be separately connected the other end of VDR8 and one end of GDT3 and GDT4, one end of the other end connection VDR8 of VDR7, The other end of VDR8 is separately connected the other end of VDR6 and one end of GDT3 and GDT4, the other end of GDT3 are separately connected One end and ground connection of the other end of GDT1, GDT2, GDT4 and VDR10 and not protected output end RJ45 socket 4, GDT4's is another One end be separately connected the other end of GDT1, GDT2, GDT3 and VDR10 and one end of not protected output end RJ45 socket 4 and Ground connection, one end ground connection of not protected output end RJ45 socket 4.

Specific embodiment 2: the present embodiment is different from the first embodiment in that: TVS1, TVS2, TVS3 and TVS4 is all made of the Transient Suppression Diode of model 5KP5.0CA, and highest can bear the voltage of 40KV and the electric current of 543A, VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7 and VDR8 are all made of the varistor of model 20D511K, and highest can To bear the electric current of 6500A, GDT1, GDT2, GDT3 and GDT4 are all made of the gas-discharge tube of 6KV model UN2H8, VDR9 and VDR10 is 4.7 ohm of Low ESR varistors, can guarantee the communication letter of eight line network communication systems in normal operation Number transmission.

Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that: protected input terminal The anode of one end connection Transient Suppression Diode 9 of RJ45 socket 3, the cathode of Transient Suppression Diode 9 connect varistor 11 One end, varistor 11 the other end connection gas-discharge tube 10 one end, gas-discharge tube 10 the other end connection not by Protect output end RJ45 socket 4.Since Transient Suppression Diode 9, varistor 11 and 10 response speed of gas-discharge tube are by fast To being followed successively by Transient Suppression Diode 9, varistor 11, gas-discharge tube 10 slowly, therefore Transient Suppression Diode 9 can be the Response, shunts high voltage and surge current, with the speed of nanosecond, the high impedance of its two interpolar is become in one time Low ESR absorbs up to thousands of watts of surge power, makes the voltage clamp of two interpolars in a predetermined value, and then can guarantee residual Remaining voltage and surge current will not damage in itself varistor 11.Next, varistor 11 responds, it can be further Ground is by voltage clamping to a relatively-stationary voltage value.Gas-discharge tube 10 starts to generate due to action of high voltage, two interpolars Non-uniform electric field, under this electric field action, the inert gas in gas-discharge tube pipe starts to dissociate, and makes when applied voltage increases to When field strength is more than the dielectric strength of gas between the two poles of the earth, the gap between the two poles of the earth will be breakdown, is converted by original state of insulation Conduction state, the voltage after conducting between discharge tube the two poles of the earth, which maintains, puts the low voltage level that electric arc channel is determined, remaining voltage With surge current underground will be imported by earth conductor cable.

Specific embodiment 4: unlike one of present embodiment and specific embodiment one to three: eight gauze networks electricity Magnetic field impulse protective device ground connection, remaining voltage and surge current will import underground by earth conductor cable, thus by VDR9 with The voltage and current that VDR10 is transferred to not protected output end RJ45 socket 4 is respectively less than the maximum work of eight line network communication apparatus Make voltage and current, to play the protective effect to eight line network communication apparatus.

Specific embodiment 5: unlike one of present embodiment and specific embodiment one to four: further including shielding Cover 6, shielding case 6 and printed circuit board 7 are welded to connect.

Specific embodiment 6: unlike one of present embodiment and specific embodiment one to five: eight gauze networks electricity Magnetic field impulse protective device inner wall is provided with sealing ring 2, can play the role of waterproof and moistureproof.

Specific embodiment 7: unlike one of present embodiment and specific embodiment one to six: further including shell 1, it is brass nickel plating material, eight gauze network Spark gap device of the utility model can be made to adapt to particular surroundings use and wanted It asks, normal function and performance can be kept under harsh high and low temperature and salt fog, hygrothermal environment.

By following embodiment verify eight gauze network Spark gap device of the utility model the utility model has the advantages that

Eight gauze network Spark gap devices of embodiment one, the present embodiment follow the steps below:

Eight gauze network Spark gap device of the utility model, including shell 1, sealing ring 2, protected input terminal RJ45 Socket 3, not protected output end RJ45 socket 4, nut 5, shielding case 6, printed circuit board 7, TVS pipe array 8, gas-discharge tube 10 and varistor 11.Wherein, printed circuit board 7 plays undertaking effect to entire circuit, and TVS pipe array 8 includes four transient states Inhibit diode TVS1, TVS2, TVS3 and TVS4, varistor 11 include VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7, VDR8, VDR9 and VDR10, gas-discharge tube 10 include GDT1, GDT2, GDT3 and GDT4.Eight gauze network of the utility model Spark gap device is a cylindrical shape, is carved with spiral thread in outer circle, close to there are two the settings of middle position Six-sided nut 5.Crust of the device is brass nickel plating material, and eight gauze network Spark gap device of the utility model can be made suitable Particular surroundings requirement is answered, normal function and performance can be kept under harsh high and low temperature and salt fog, hygrothermal environment.Eight Have one layer of sealing ring 2 at gauze network Spark gap device inner wall and two ports, waterproof can be played the role of.Device Internal diameter middle position is equipped with shielding case 6, is connected between shielding case 6 and printed circuit board 7 with soldering and welding, can to high voltage and Surge current plays shielding, insulating effect, to protect to eight line network communication systems.Firstly, protected input terminal RJ45 socket 3 is separately connected the anode of TVS1, TVS2, TVS3 and TVS4 and one end of VDR9, and the cathode of TVS1 is separately connected The cathode and VDR1 of TVS2 and one end of VDR3, the cathode of TVS2 be separately connected TVS1 cathode and VDR1 and VDR3 one End, one end of the other end connection VDR2 of VDR1, the other end of VDR2 are separately connected the other end and GDT1 and GDT2 of VDR4 One end, VDR3 the other end connection VDR4 one end, the other end of VDR4 be separately connected VDR2 the other end and GDT1 and One end of GDT2, the other end of GDT1 be separately connected GDT2, VDR10, GDT3 and GDT4 the other end and not protected output Hold RJ45 socket 4 one end and ground connection, the other end of GDT2 be separately connected GDT1, VDR10, GDT3 and GDT4 the other end and One end of not protected output end RJ45 socket 4 and ground connection, one end of the other end connection VDR10 of VDR9, the other end of VDR10 It is separately connected the other end of GDT1, GDT2, GDT3 and GDT4 and one end and the ground connection of not protected output end RJ45 socket 4, The cathode of TVS3 is separately connected the cathode of TVS4 and one end of VDR5 and VDR7, and the cathode of TVS4 is separately connected the cathode of TVS3 And one end of VDR5 and VDR7, one end of the other end connection VDR6 of VDR5, the other end of VDR6 are separately connected the another of VDR8 One end and one end of GDT3 and GDT4, one end of the other end connection VDR8 of VDR7, the other end of VDR8 are separately connected VDR6 The other end and GDT3 and GDT4 one end, the other end of GDT3 is separately connected the another of GDT1, GDT2, GDT4 and VDR10 One end and ground connection, the other end of GDT4 of end and not protected output end RJ45 socket 4 are separately connected GDT1, GDT2, GDT3 With the other end of VDR10 and one end and the ground connection of not protected output end RJ45 socket 4, not protected output end RJ45 socket 4 one end ground connection.

Eight gauze network Spark gap device of the utility model, wherein TVS1, TVS2, TVS3 and TVS4 are all made of type Number Transient Suppression Diode for being 5KP5.0CA, highest can bear the voltage of 40KV and the electric current of 543A, VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7 and VDR8 are all made of the varistor of model 20D511K, and highest can bear 6500A Electric current, GDT1, GDT2, GDT3 and GDT4 be all made of the gas-discharge tube of 6KV model UN2H8, and VDR9 and VDR10 are 4.7 Ohm Low ESR varistor can guarantee the communication signal transmission of eight line network communication systems in normal operation.

One end of eight gauze network Spark gap device of the utility model, protected input terminal RJ45 socket 3 connects wink State inhibit diode 9 anode, Transient Suppression Diode 9 cathode connection varistor 11 one end, varistor 11 it is another One end connects one end of gas-discharge tube 10, and the other end of gas-discharge tube 10 connects not protected output end RJ45 socket 4.By It is followed successively by transient state from fast to slow in Transient Suppression Diode 9, varistor 11 and 10 response speed of gas-discharge tube and inhibits two poles Pipe 9, varistor 11, gas-discharge tube 10, when pulse of the protected input terminal RJ45 socket 3 by high voltage and surge current When, therefore Transient Suppression Diode 9 can be responded in first time, TVS1, TVS2, TVS3 and TVS4 are to high voltage and surge electricity Stream is shunted, and with the speed of nanosecond, the high impedance of its two interpolar is become Low ESR, absorbs up to thousands of watts of surge function Rate makes the voltage clamp of two interpolars in a predetermined value, next when high voltage appear in VDR1, VDR2, VDR3, VDR4, Two interpolars of VDR5, VDR6, VDR7 and VDR8, VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7 and VDR8 can will be electric Pressing tongs position to a relatively-stationary voltage value, when remaining high voltage and surge current appear in GDT1, GDT2, GDT3 and Two interpolars of GDT4, due to action of high voltage, two interpolars of GDT1, GDT2, GDT3 and GDT4 start to generate non-uniform electric field, Under this electric field action, the inert gas in gas-discharge tube pipe starts to dissociate, when applied voltage increase to make the two poles of the earth between field strength it is super When crossing the dielectric strength of gas, the gap between the two poles of the earth will be breakdown, is converted into conduction state by original state of insulation, conducting The voltage between discharge tube the two poles of the earth, which maintains, afterwards puts the low voltage level that electric arc channel is determined, and remaining voltage and surge current will Underground is imported by earth conductor cable, since Transient Suppression Diode 9, gas-discharge tube 10 and varistor 11 all have nanosecond Response time and reaction speed, therefore by VDR9 and VDR10 be transferred to not protected output end RJ45 socket 4 voltage and Electric current is respectively less than the maximum working voltage and electric current of eight line network communication apparatus, the maximum working voltage of eight line network communication apparatus For 55V, maximum operating currenbt 250MA.Eight gauze network Spark gap device of the utility model, unites through repetition test data Meter show that the device than existing protection electromagnetic pulse averagely improves 30% or more to the protection effect of network communication apparatus, Guarantee that communication apparatus will not be damaged and can guarantee that communication security and stability will not by hardware under the interference of electromagnetic pulse It is affected.

Eight gauze network Spark gap device of the utility model, being equipped with includes brass nickel plating shell, waterproof grommet, screen Cover the multistage protection means including cover, Transient Suppression Diode, varistor, gas-discharge tube etc., can will include harsh height, Low temperature and salt fog, hygrothermal environment and thunderstorm weather, nuclear electromagnetic pulse (NEMP), high-altitude electromagnetic pulse (HEMP) and thunder and lightning electromagnetism Influence of the overvoltage and electrical surge electric current caused by pulse (LEMP) to network communication apparatus is protected to lower level, is made Network communication apparatus communicates under the interference by electromagnetic pulse to be operated normally and equipment is not damaged.This is practical Novel eight gauzes network Spark gap device is directly mounted to be protected on faraday cup or metal shell, and adds Dress Spark gap device does not influence the function and performance of protected device.In addition, due to eight gauze network electricity of the utility model Magnetic field impulse protective device is equipped with multistage protection means, eight gauze network Spark gap device of the utility model is mounted on wheeled In communication command vehicle, in the earth-free situation of device, overvoltage caused by the electrical surge electric current generated to electromagnetic pulse, It equally can be carried out effective protection.

Certainly, above description is not the limitation to eight gauze network Spark gap device of the utility model, this is practical new Eight gauze network Spark gap device of type is also not limited to the example above, and those skilled in the art are practical at this The variations, modifications, additions or substitutions made in the essential scope of novel eight gauzes network Spark gap device also belong to this The protection scope of eight gauze network Spark gap device of utility model.

Claims (7)

1. eight gauze network Spark gap devices, including protected input terminal RJ45 socket (3) and not protected output end RJ45 socket (4), it is characterised in that: further include printed circuit board (7), TVS pipe array (8), gas-discharge tube (10) and pressure-sensitive Resistance (11)；TVS pipe array (8) includes four Transient Suppression Diodes (9), respectively TVS1, TVS2, TVS3 and TVS4, pressure Quick resistance (11) includes VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7, VDR8, VDR9 and VDR10, gas-discharge tube It (10) include GDT1, GDT2, GDT3 and GDT4；

Protected input terminal RJ45 socket (3) is separately connected the anode of TVS1, TVS2, TVS3 and TVS4 and one end of VDR9, The cathode of TVS1 is separately connected the cathode of TVS2 and one end of VDR1 and VDR3, and the cathode of TVS2 is separately connected the cathode of TVS1 And one end of VDR1 and VDR3, one end of the other end connection VDR2 of VDR1, the other end of VDR2 are separately connected the another of VDR4 One end and one end of GDT1 and GDT2, one end of the other end connection VDR4 of VDR3, the other end of VDR4 are separately connected VDR2 The other end and GDT1 and GDT2 one end, the other end of GDT1 is separately connected the another of GDT2, VDR10, GDT3 and GDT4 End and not protected output end RJ45 socket (4) one end and ground connection, the other end of GDT2 be separately connected GDT1, VDR10, One end and ground connection of the other end of GDT3 and GDT4 and not protected output end RJ45 socket (4), the other end connection of VDR9 One end of VDR10, the other end of VDR10 be separately connected GDT1, GDT2, GDT3 and GDT4 the other end and not protected output The one end and ground connection, the cathode of TVS3 for holding RJ45 socket (4) are separately connected the cathode of TVS4 and one end of VDR5 and VDR7, The cathode of TVS4 is separately connected the cathode of TVS3 and one end of VDR5 and VDR7, and the other end of VDR5 connects one end of VDR6, The other end of VDR6 is separately connected the other end of VDR8 and one end of GDT3 and GDT4, and the other end of VDR7 connects the one of VDR8 End, the other end of VDR8 is separately connected the other end of VDR6 and one end of GDT3 and GDT4, the other end of GDT3 are separately connected One end and ground connection of the other end of GDT1, GDT2, GDT4 and VDR10 and not protected output end RJ45 socket (4), GDT4's The other end be separately connected GDT1, GDT2, GDT3 and VDR10 the other end and not protected output end RJ45 socket (4) one End and ground connection, one end ground connection of not protected output end RJ45 socket (4).

2. eight gauzes network Spark gap device according to claim 1, it is characterised in that: TVS1, TVS2, TVS3 and The model 20D511K of the model 5KP5.0CA, VDR1, VDR2, VDR3, VDR4, VDR5, VDR6, VDR7 and VDR8 of TVS4, The model UN2H8, VDR9 and VDR10 of GDT1, GDT2, GDT3 and GDT4 are 4.7 ohm of varistors.

3. eight gauzes network Spark gap device according to claim 1, it is characterised in that: protected input terminal RJ45 The cathode of the anode of one end connection Transient Suppression Diode (9) of socket (3), Transient Suppression Diode (9) connects varistor (11) one end, varistor (11) the other end connection gas-discharge tube (10) one end, gas-discharge tube (10) it is another End connects not protected output end RJ45 socket (4).

4. eight gauzes network Spark gap device according to claim 1, it is characterised in that: eight gauze network electromagnetic pulses Protective device ground connection.

5. eight gauzes network Spark gap device according to claim 1, it is characterised in that: it further include shielding case (6), Shielding case (6) and printed circuit board (7) are welded to connect.

6. eight gauzes network Spark gap device according to claim 1, it is characterised in that: eight gauze network electromagnetic pulses The inner wall of protective device is provided with sealing ring (2).

7. eight gauzes network Spark gap device according to claim 1, it is characterised in that: further include shell (1), outside Shell (1) is brass nickel plating material.