CN107171308A - Ultrahigh speed Ethernet monitors surge protection device - Google Patents
Ultrahigh speed Ethernet monitors surge protection device Download PDFInfo
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- CN107171308A CN107171308A CN201710595334.1A CN201710595334A CN107171308A CN 107171308 A CN107171308 A CN 107171308A CN 201710595334 A CN201710595334 A CN 201710595334A CN 107171308 A CN107171308 A CN 107171308A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/044—Physical layout, materials not provided for elsewhere
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Abstract
Surge protection device is monitored the invention discloses ultrahigh speed Ethernet; two bridges are provided between a-signal line and B signal line; bridge close to RJ45 Interface Terminals J1 includes discharge tube G1, low di-cap F1 between line; discharge tube G1 one end is connected on B signal line between line, and the discharge tube G1 other end is connected with low di-cap F1 one end between line；The other end at discharge tube G1 ends is connected on a-signal line between low di-cap F1 connecting lines；Include discharge tube G2 one end between discharge tube G2, low di-cap F2 between line, line close to RJ45 Interface Terminals J2 bridge to be connected on a-signal line, the discharge tube G2 other end is connected with low di-cap F2 one end between line；The other end at discharge tube G2 ends is connected on B signal line between low di-cap F2 connecting lines.The present invention realizes the bidirectional protective to input and equipment end by setting two specific bridges and the over the ground circuit of aerial drainage between signal wire, comprehensive to prevent the directionless invasion of lightning current.
Description
Technical field
The present invention relates to lightning protection field, and in particular to ultrahigh speed Ethernet monitors surge protection device.
Background technology
Surge protector (Surge Protection Devices), abbreviation SPD, also referred to as Surge Protector, overvoltage are protected
Device is protected, arrester, lightning protection device is commonly called as.Lightning protection device element has soft or hard two kinds in terms of response characteristic.Belong to the electric discharge of hard response characteristic
Element has spark gap (based on the angle-style gap and coaxial discharge gap for cutting arc technology) and gas-discharge tube to belong to soft sound
Answering the arresting element of characteristic has metal oxide piezo-resistance and Transient Suppression Diode.The difference of these elements is the energy that discharges
Power, response characteristic and residual voltage, arrester are exactly to utilize their different advantage and disadvantage, maximize favourable factors and minimize unfavourable ones, are combined into various arresters, are protected
Protection circuit.
Wherein, the principle of discharging gap is the electrode of two such as ox horn present situations, and distance is very short, is separated with insulating materials, when
When two interelectrode electric-field intensity reach breakdown strength, current path is formed between electrode.It is first when lightning wave is come
First puncture in gap location, make the air ionization in gap, form short circuit, lightning current is flowed into greatly by gap, and now gap two
The voltage at end is very low, so as to reach the purpose of protection circuit.Electric-field intensity is less than when puncturing gap, and discharging gap type arrester is again
Recover state of insulation.It is usually used in the lighting protection of high-tension line.In low-pressure system, it is usually used in the prime protection of power supply.
Gas-discharge tube (Gas discharge tube, GDT) is filled with again necessarily in a kind of ceramics or glass-encapsulated, pipe
The inert gas (such as argon gas) of pressure, the protection element of switching mode has two kinds of structures of two electrodes and three electrodes.When electric-field intensity reaches
To when puncturing inert gas intensity, just cause gap discharge, so as to limit the voltage of interpolar.8/20 μ s pulse currents can be dredged
10KA.Discharge voltage is unstable, when voltage is more than 12V, Current Voltage 100mA, can produce subsequent current.It is generally used for surveying
In amount, control, regulation technology circuit and electronic data processing transmission circuit.
Network's thunder device is one kind of Surge Protector, is primarily used for the lightning protection measures that network system is taken.
It is the important behaviour of internal lighting protection.In today of information-based high speed development, the application of network's thunder device is more and more universal.
In the prior art, applying charge gap principle or gas-discharge tube, can only all realize the list of network transmission system
To lightning protection, network's thunder device is so resulted in during actual installation use, it is possible that installing error when installation,
Cause lightning protection device to lose the due effect of lightning protection, be that intrusion of the lightning current to circuit or equipment is regardless of direction the problem of bigger
, network's thunder device of the prior art can not play due comprehensive protective effect, due to prior art lightning protection device
There is considerable influence for network data rate transmission, cause transmission rate to reduce, it is impossible to which meeting network data transmission rate will
Ask.
The content of the invention
The technical problems to be solved by the invention are that network's thunder device of the prior art can only unidirectionally lightning protection, it is impossible to played
Comprehensive protective effect, and its transmission rate is relatively low, it is therefore intended that ultrahigh speed Ethernet monitoring surge protection device is provided,
Realize to input and the bidirectional protective of equipment end, it is comprehensive to prevent the directionless invasion of lightning current, while improving network number
According to transmission rate.
The present invention is achieved through the following technical solutions：
Ultrahigh speed Ethernet monitors surge protection device, including RJ45 Interface Terminal J1, RJ45 Interface Terminals J2, described
RJ45 Interface Terminals J1 draw pin is with RJ45 Interface Terminals J2 draw pin according to draw pin 1, draw pin 2, draw pin 3, draw pin 6, draw pin
4th, draw pin 5, draw pin 7, the order of draw pin 8 or inverted order are set, and are connected respectively using 8 circuits, and 8 circuit correspondences are designated as
Adjacent two lines road constitutes one in Line 1, No. 2 lines, No. 3 lines, No. 6 lines, No. 4 lines, No. 5 lines, No. 7 lines, No. 8 lines, 8 circuits
Lightning protection unit, circuit is not reused；Each lightning protection unit medium and small sizes line is that Line 1, No. 3 lines, No. 4 lines, No. 7 lines are designated as A letters
Number line, corresponding another circuit is the A letters that No. 2 lines, No. 6 lines, No. 5 lines, No. 8 lines are designated as in B signal line, each lightning protection unit
Number it is provided with two bridges between line and B signal line, two bridge parallel connections, wherein,
Include discharging between discharge tube G1, low di-cap F1 between line, the line close to RJ45 Interface Terminals J1 bridge
Pipe G1 one end is connected on B signal line, and discharge tube G1 and B signal line tie point are designated as discharge tube G1 between node c, line between line
The other end is connected with low di-cap F1 one end；The other end at discharge tube G1 ends connects between the low di-cap F1 connecting lines
It is connected on a-signal line, low di-cap F1 and a-signal line tie point are designated as node a；
Include discharging between discharge tube G2, low di-cap F2 between line, the line close to RJ45 Interface Terminals J2 bridge
Pipe G2 one end is connected on a-signal line, and discharge tube G2 and a-signal line tie point are designated as discharge tube G2 between node b, line between line
The other end is connected with low di-cap F2 one end；The other end at discharge tube G2 ends connects between the low di-cap F2 connecting lines
It is connected on B signal line, low di-cap F2 and B signal line tie point are designated as node d；
Each lightning protection unit also includes discharge tube G3 and over the ground discharge tube G4 over the ground, the G3 of discharge tube over the ground one end connection
On a-signal line, the tie point of discharge tube G3 and a-signal line is between node a and node b over the ground, over the ground discharge tube G3
The other end is grounded；The described G4 of discharge tube over the ground one end is connected on B signal line, over the ground discharge tube G4 and B signal line tie point
Between node c and node d, the discharge tube G4 other end is grounded over the ground；The G3 of discharge tube over the ground of each lightning protection unit with it is right
Ground discharge tube G4 common grounds.
Discharge tube is a kind of high voltage protective element for being used in equipment input.If the voltage at its two ends exceeds its protection rule
Short circuit phenomenon occurs during lattice value, inside it, and sponges the mistake high pressure of input.Discharge tube is divided into gas-discharge tube and semiconductor
Discharge tube.Wherein, gas-discharge tube can regard a symmetrical switch with very little electric capacity as, and it is in normal working conditions
Shut-off, its electrode resistance reaches more than mega-ohms.When surge voltage exceedes the compressive resistance of circuit system, gas-discharge tube quilt
Puncture and occur arc discharge phenomenon, because arc photoelectric is forced down, only tens volts, so as to limit surge electricity in a short time
That presses is further up.Gas-discharge tube is exactly to limit surge voltage using above-mentioned principle, and overvoltage protection is played to circuit
's.It is a kind of PNPN elements that semiconductor discharge tube, which is also referred to as solid discharging tube, and it can be counted as a freely electricity without gate electrode
The controllable silicon of voltage-controlled system, when voltage exceedes its off-state crest voltage or makees avalanche voltage, semiconductor discharge tube can be by wink
State voltage clamping is within the switching voltage or break over voltage value of element.Voltage continue increase when, semiconductor discharge tube due to
Negative resistance effect enters conducting state.Only when electric current is less than maintenance electric current, element can just reset and return to its high resistant
Anti- state.Therefore, the operation principle and process from two kinds of discharge tubes can be drawn, discharge tube meets with lightning current so no
Surge current when, discharge tube is not turned on.
In the present invention, RJ45 Interface Terminals J1 can connect signal input part or equipment end, and RJ45 Interface Terminals J2 can
It is for convenience, described below on condition that RJ45 Interface Terminals J1 connections are believed to connect signal input part or equipment end
Number input, RJ45 Interface Terminals connection equipment end.
The intrusion of lightning current is that, regardless of direction, lightning current may enter from signal input part, it is also possible to which slave unit end is entered
Enter.
When no lightning current is invaded, due to the working characteristics of discharge tube, the a-signal line and B of each lightning protection unit
Two bridges between signal wire pass through Line 1 to 8 equivalent to open circuit between RJ45 Interface Terminal J1 and RJ45 Interface Terminals J2
Number line carries out normal data transfer.
When lightning current is flowed into from RJ45 Interface Terminals J1 inflows, that is, from signal input part, concrete condition is as follows：
When lightning current enters from the B signal line of lightning protection unit, because the voltage between a-signal line and B signal line increases suddenly
Greatly, discharge tube G1 is turned between line, the conducting of bridge between B signal line and the intermediate node c and node a of a-signal line, lightning current from
RJ45 Interface Terminals J1 enter, from node c pass sequentially through line between discharge tube G1, low di-cap F1 flow through node a, due to right
The ends of ground discharge tube G3 mono- are connected on a-signal line, and the other end is grounded, and the voltage at discharge tube G3 two ends is very high over the ground, therefore, discharges over the ground
Pipe G3 is also conducting, and lightning current flows through discharge tube G3 aerial drainages over the ground over the ground after node a outflows；
When lightning current enters from the a-signal line of lightning protection unit, because the voltage between a-signal line and B signal line increases suddenly
Greatly, discharge tube G2 is turned between line, the conducting of bridge between B signal line and the intermediate node b and node d of a-signal line, lightning current from
RJ45 Interface Terminals J1 enter, from node b pass sequentially through line between discharge tube G2, low di-cap F2 flow through node d, due to right
The ends of ground discharge tube G4 mono- are connected on a-signal line, and the other end is grounded, and the voltage at discharge tube G4 two ends is very high over the ground, therefore, discharges over the ground
Pipe G4 is also conducting, and lightning current flows through discharge tube G4 aerial drainages over the ground over the ground after node d outflows；So as to prevent lightning current to invade
Enter the equipment end of RJ45 Interface Terminals J2 connections, the equipment for protecting connection.
When lightning current is flowed into from RJ45 Interface Terminals J2 inflows, that is, slave unit end, concrete condition is as follows：
When lightning current enters from the B signal line of lightning protection unit, because the voltage between a-signal line and B signal line increases suddenly
Greatly, discharge tube G2 is turned between line, the conducting of bridge between a-signal line and the intermediate node b and node d of B signal line, lightning current from
RJ45 Interface Terminals J2 enter, from node b pass sequentially through line between discharge tube G2, low di-cap F2 flow through node d, due to right
The ends of ground discharge tube G4 mono- are connected on B signal line, and the other end is grounded, and the voltage at discharge tube G4 two ends is very high over the ground, therefore, discharges over the ground
Pipe G4 is also conducting, and lightning current flows through discharge tube G4 aerial drainages over the ground over the ground after node d outflows；
When lightning current enters from the a-signal line of lightning protection unit, because the voltage between a-signal line and B signal line increases suddenly
Greatly, discharge tube G1 is turned between line, the conducting of bridge between a-signal line and the intermediate node c and node a of B signal line, lightning current from
RJ45 Interface Terminals J2 enter, from node c pass sequentially through line between discharge tube G1, low di-cap F1 flow through node a, due to right
The ends of ground discharge tube G3 mono- are connected on a-signal line, and the other end is grounded, and the voltage at discharge tube G3 two ends is very high over the ground, therefore, discharges over the ground
Pipe G3 is also conducting, and lightning current flows through discharge tube G3 aerial drainages over the ground over the ground after node a outflows；So as to prevent lightning current to invade
Enter the signal input part of RJ45 Interface Terminals J1 connections, protect the relevant device of RJ45 Interface Terminals J1 connections.
Hereby it is achieved that the bidirectional protective of the side apparatus of lightning protection device two, solves the problem of the application is proposed.
Further, also it is in series with the circuit between the node a of each lightning protection unit and low di-cap F1 unidirectional
Diode D1, the anode of the unilateral diode D1 is connected with low di-cap F1, the negative electrode of the unilateral diode D1 with
Node a connections；Unilateral diode D2, unidirectional two pole are also in series with circuit between node d and low di-cap F2
Pipe D2 anode is connected with low di-cap F2, and the negative electrode of the unilateral diode D2 is connected with node d.
When the signal frequency or higher transmission rate of a-signal line and B signal line, if between a-signal line and B signal line
Line pair between equivalent capacity it is higher, the signal frequency or transmission rate of signal wire can be reduced, therefore, in order to reduce total equivalent electric
Hold, unilateral diode is provided with two bridges, for improving frequency transmission signal or transmission rate.Between the present invention is online
By the tube discharge that discharges, then by low di-cap combination unilateral diode, the equivalent capacity of whole circuit is reduced, it is equivalent
Electric capacity Cj≤ 3pF, adequately protects, and realize the data transfer of high-speed being realized whole line.
As shown in Table 1, the electrical characteristic data table measured when table one is 25 DEG C, can draw, junction capacity is equivalent from table
Electric capacity very little, can adequately protect, and realize the data transfer of high-speed being realized whole line.
Further, as signal frequency W >=10MHz between RJ45 Interface Terminal J1 and RJ45 Interface Terminals J2 or
Transmission rate R >=10Mb/s between RJ45 Interface Terminal J1 and RJ45 Interface Terminals J2, a-signal line and B signal
Equivalent capacity C between line pair between linej≤60pF。
Further, as signal frequency W >=100MHz between RJ45 Interface Terminal J1 and RJ45 Interface Terminals J2 or
Transmission rate R >=100Mb/s between RJ45 Interface Terminal J1 and RJ45 Interface Terminals J2, between a-signal line and B signal line
Equivalent capacity C between line pairj≤20pF。
Further, the low di-cap F1 and low di-cap F2 use SELC08CI series of diode.
It is in order to reduce total equivalent capacity between signal wire, for improving frequency transmission signal from SELC08CI series of diode
Or transmission rate.
Further, the circuit and device between the RJ45 Interface Terminals J1 and RJ45 Interface Terminal J2 are integrated in
On pcb board, the pcb board is four-layer structure, and pcb board is from top to bottom followed successively by top layer, PE1 layers, PE2 layers and bottom, wherein, its
In, the G3 of discharge tube over the ground of each lightning protection unit is arranged on PE1 layers/PE2 layers, the G3 of discharge tube over the ground of each lightning protection unit, right
Ground discharge tube G4 is arranged on PE2 layers and PE1 layers；Bridge close to RJ45 Interface Terminals J1, the bridge close to RJ45 Interface Terminals J2
Road is arranged on bottom and top layer；The bridge between bridge and No. 7 lines and No. 8 lines between No. 3 lines and No. 6 lines is arranged on top
Layer/bottom, the bridge between bridge and No. 4 lines and No. 5 lines between Line 1 and No. 2 lines is arranged on bottom/top layers.
At present, what is used in lightning protection device is all two-layer wiring, because high-speed data signal has very strong wear in transmission
Permeability, easily produce line between, the noise jamming of line pair, therefore, the present invention between top layer and bottom be provided with PE1 layers and PE2
Two layers of separation layer of layer, and connected together with the ground wire of inside and outside laminate extraction, multilayer circuit board is so combined into, is realized well
Ground connection and isolate, reduce between line, the noise jamming of line pair, it is ensured that the high rate data transmission of high speed signal.It is high in the prior art
I.e. the transmission rate of fast signal network data is 100Mbps, a small number of products can reach 1000Mbps, what the present invention can reach
Transmission rate is 10Gbps, and more than 10 times are improved in the transmission rate in currently available technology.
Further, the pcb board thickness is 1.60 ± 0.18mm.Sheet material is thicker smaller to data penetrability and interference,
And 1.60 ± 0.18mm is sheet metal thickness and the double preferable thickness guarantees ensured of interference free performance, sheet material had both been saved, it is ensured that
Size is smaller, can realize interference free performance again.
Further, the copper thickness used on the pcb board is the one of 1/1oz, i.e., 1 ounce point.Copper foil is thicker logical resistance to
Impact is stronger, but the thickness of copper foil is bigger, and cost is higher, and 1 ounce point one can balance cost and impact resistance well
Between contradiction.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention is between signal wire by setting two specific bridges and the circuit of aerial drainage over the ground, realizes pair
The bidirectional protective of input and equipment end, it is comprehensive to prevent the directionless invasion of lightning current；
2nd, the invention provides four layers of wiring, two layers separation layer is set up between top layer and bottom, reduce between line, line
To noise jamming, it is ensured that the high rate data transmission for high speed signal of knowing clearly；
3rd, the transmission rate that network data transmission of the invention can reach is 10Gbps, and highest present in prior art
Speed is 1000Mbps, and more than 10 times are improved in the transmission rate in currently available technology.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is pcb board layer structure schematic diagram of the present invention；
Fig. 3 is the pin layout of RJ45 Interface Terminals in the prior art；
Fig. 4 is the pin layout of the RJ45 Interface Terminals after the present invention is improved；
Fig. 5 and Fig. 6 is the simple circuit figure of lightning protection device in the prior art.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment 1
As shown in figure 1, ultrahigh speed Ethernet monitors surge protection device, including RJ45 Interface Terminal J1, RJ45 interface ends
Sub- J2, the draw pin of the RJ45 Interface Terminals J1 and RJ45 Interface Terminals J2 draw pin according to draw pin 1, draw pin 2, draw pin 3, draw
Pin 6, draw pin 4, draw pin 5, draw pin 7, the order of draw pin 8 or inverted order are set, and are connected respectively using 8 circuits, by 8 circuits
Correspondence is designated as adjacent two lines road in Line 1, No. 2 lines, No. 3 lines, No. 6 lines, No. 4 lines, No. 5 lines, No. 7 lines, No. 8 lines, 8 circuits
A lightning protection unit is constituted, circuit is not reused；Each lightning protection unit medium and small sizes line is Line 1, No. 3 lines, No. 4 lines, No. 7 lines
It is designated as a-signal line, corresponding another circuit is that No. 2 lines, No. 6 lines, No. 5 lines, No. 8 lines are designated as B signal line, each lightning protection unit
In a-signal line and B signal line between be provided with two bridges, two bridge parallel connections, wherein,
Include discharging between discharge tube G1, low di-cap F1 between line, the line close to RJ45 Interface Terminals J1 bridge
Pipe G1 one end is connected on B signal line, and discharge tube G1 and B signal line tie point are designated as discharge tube G1 between node c, line between line
The other end is connected with low di-cap F1 one end；The other end at discharge tube G1 ends connects between the low di-cap F1 connecting lines
It is connected on a-signal line, low di-cap F1 and a-signal line tie point are designated as node a；
Include discharging between discharge tube G2, low di-cap F2 between line, the line close to RJ45 Interface Terminals J2 bridge
Pipe G2 one end is connected on a-signal line, and discharge tube G2 and a-signal line tie point are designated as discharge tube G2 between node b, line between line
The other end is connected with low di-cap F2 one end；The other end at discharge tube G2 ends connects between the low di-cap F2 connecting lines
It is connected on B signal line, low di-cap F2 and B signal line tie point are designated as node d；
Each lightning protection unit also includes discharge tube G3 and over the ground discharge tube G4 over the ground, the G3 of discharge tube over the ground one end connection
On a-signal line, the tie point of discharge tube G3 and a-signal line is between node a and node b over the ground, over the ground discharge tube G3
The other end is grounded；The described G4 of discharge tube over the ground one end is connected on B signal line, over the ground discharge tube G4 and B signal line tie point
Between node c and node d, the discharge tube G4 other end is grounded over the ground；The G3 of discharge tube over the ground of each lightning protection unit with it is right
Ground discharge tube G4 common grounds.
Unilateral diode D1, the unilateral diode are also in series with circuit between node a and low di-cap F1
D1 anode is connected with low di-cap F1, and the negative electrode of the unilateral diode D1 is connected with node a；Node d and low electric capacity
Unilateral diode D2, the unilateral diode D2 anode and low di-cap are also in series with circuit between diode F2
F2 connections, the negative electrode of the unilateral diode D2 is connected with node d.
Signal frequency W >=10MHz or RJ45 interface ends between RJ45 Interface Terminal J1 and RJ45 Interface Terminals J2
It is equivalent between transmission rate R >=10Mb/s between sub- J1 and RJ45 Interface Terminals J2, the line pair between a-signal line and B signal line
Electric capacity Cj≤60pF。
Signal frequency W >=100MHz or RJ45 interface ends between RJ45 Interface Terminal J1 and RJ45 Interface Terminals J2
It is equivalent between transmission rate R >=100Mb/s between sub- J1 and RJ45 Interface Terminals J2, the line pair between a-signal line and B signal line
Electric capacity Cj≤20pF。
Low di-cap F1 and low di-cap F2 use SELC08CI series of diode.
Discharge tube between line：1206 encapsulation, precision 1%, 90V or 350V (are released：Selection between 90V and 350V is limited to POE confessions
Selection when electric)
Discharge tube over the ground：1812 encapsulation, precision 1%, 90V
Low di-cap：SELC08CI series, 3216 encapsulation, 12.0CA
Unilateral diode：1210 encapsulation, 12.0CA
As shown in Figure 5 and Figure 6, all it is the operating circuit of network's thunder device in the prior art, has all strictly distinguished turnover side
To this does not just meet lightning current and flees feature i.e. regardless of direction；All larger using the discharge tube of device and TVS electric capacity, this is just
Bandwidth is limited, does not reach the high bandwidth that the present invention can reach.
Embodiment 2
The present embodiment and the difference of embodiment 1 are, as shown in Fig. 2 RJ45 Interface Terminals J1 and RJ45 Interface Terminals J2
Between circuit and device be integrated on pcb board, the pcb board be four-layer structure, pcb board be from top to bottom followed successively by top layer,
PE1 layers, PE2 layers and bottom, wherein, the G3 of discharge tube over the ground of each lightning protection unit is arranged on PE1 layers/PE2 layers, each lightning protection list
The G3 of discharge tube over the ground of member, over the ground discharge tube G4 are separately positioned on PE2 layers and PE1 layers；Close RJ45 Interface Terminals J1 bridge,
Bridge close to RJ45 Interface Terminals J2 is separately positioned on bottom and top layer；Bridge and No. 7 lines between No. 3 lines and No. 6 lines
Bridge between No. 8 lines is arranged on top/bottom, between the bridge and No. 4 lines and No. 5 lines between Line 1 and No. 2 lines
Bridge is arranged on bottom/top layers.
Whole pcb board 1.60 ± 0.18mm of thickness, overlay coating is chemical nickel and gold.Pcb board material is FR4 and Rogers4350
Radio frequency sheet material mixing compacting is formed.The dielectric loss of the sheet material is measured under identical standard, and only 0.0009, extremely low medium is damaged
Consumption makes it be highly suitable for high frequency and wide-band application that requirement minimizes dispersion and loss, and its highest supports frequency up to Ku ripples
Section even more high frequency.Additionally with extremely low hydroscopicity, only 0.02%, the characteristic makes it high humidity environment application
Ideal chose.
Top layer：Special RJ45 Interface Terminal pins are combined by 1/1oz copper foils, the line pair of No. 3 lines of layout and No. 6 lines and
The line pair of No. 7 lines and No. 8 lines；
PE1 layers：Discharged over the ground aerial drainage by 1/1oz copper foils；
PE2 layers：Discharged over the ground aerial drainage by 1/1oz copper foils；
Bottom：Special RJ45 Interface Terminal pins are combined by 1/1oz copper foils, the line pair of layout Line 1 and No. 2 lines and
The line pair of No. 4 lines and No. 5 lines；
Above-mentioned special RJ45 Interface Terminals are the product after improving existing RJ45 Interface Terminals, such as Fig. 3 and Fig. 4
It is shown, the position for having exchanged 1/2-3/6 is changed, it is achieved thereby that impedance, distribution capacity and noise between 1/2-3/6 lines pair
Interference, further increases the transmission rate of network data, while improving impact resistance Surge handling capability.
The copper thickness used on pcb board is the one of 1/1oz, i.e., 1 ounce point.
2 layers of ectonexine medium design isolator, has fine protection to the penetrability of high speed data transfer.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (8)
1. ultrahigh speed Ethernet monitors surge protection device, including RJ45 Interface Terminal J1, RJ45 Interface Terminal J2, its feature exists
In the draw pin of the RJ45 Interface Terminals J1 is with RJ45 Interface Terminals J2 draw pin according to draw pin 1, draw pin 2, draw pin 3, draw pin
6th, draw pin 4, draw pin 5, draw pin 7, the order of draw pin 8 or inverted order are set, and are connected respectively using 8 circuits, by 8 circuits pair
Adjacent two lines road structure in Line 1, No. 2 lines, No. 3 lines, No. 6 lines, No. 4 lines, No. 5 lines, No. 7 lines, No. 8 lines, 8 circuits should be designated as
Into a lightning protection unit, circuit is not reused；Each lightning protection unit medium and small sizes line is Line 1, No. 3 lines, No. 4 lines, No. 7 line notes
For a-signal line, corresponding another circuit is that No. 2 lines, No. 6 lines, No. 5 lines, No. 8 lines are designated as in B signal line, each lightning protection unit
A-signal line and B signal line between be provided with two bridges, two bridge parallel connections, wherein,
Bridge close to RJ45 Interface Terminals J1 includes discharge tube G1 between discharge tube G1, low di-cap F1 between line, the line
One end is connected on B signal line, and the tie point of discharge tube G1 and B signal line is designated as the another of discharge tube G1 between node c, line between line
End is connected with low di-cap F1 one end；The other end at discharge tube G1 ends is connected between the low di-cap F1 connecting lines
On a-signal line, low di-cap F1 and a-signal line tie point are designated as node a；
Bridge close to RJ45 Interface Terminals J2 includes discharge tube G2 between discharge tube G2, low di-cap F2 between line, the line
One end is connected on a-signal line, and the tie point of discharge tube G2 and a-signal line is designated as the another of discharge tube G2 between node b, line between line
End is connected with low di-cap F2 one end；The other end at discharge tube G2 ends is connected between the low di-cap F2 connecting lines
On B signal line, low di-cap F2 and B signal line tie point are designated as node d；
Each lightning protection unit also includes discharge tube G3 and over the ground discharge tube G4 over the ground, and the described G3 of discharge tube over the ground one end is connected to A
On signal wire, the tie point of discharge tube G3 and a-signal line is between node a and node b over the ground, and discharge tube G3's is another over the ground
End ground connection；The described G4 of discharge tube over the ground one end is connected on B signal line, and discharge tube G4 and B signal line tie point are in over the ground
Between node c and node d, the discharge tube G4 other end is grounded over the ground；The G3 of discharge tube over the ground of each lightning protection unit with putting over the ground
Fulgurite G4 common grounds.
2. ultrahigh speed Ethernet according to claim 1 monitors surge protection device, it is characterised in that each lightning protection unit
In node a and corresponding low di-cap F1 between circuit on be also in series with unilateral diode D1, unidirectional two pole
Pipe D1 anode is connected with low di-cap F1, and the negative electrode of the unilateral diode D1 is connected with node a；Node d and low electricity
Hold and unilateral diode D2 is also in series with the circuit between diode F2, the anode of the unilateral diode D2 and the low pole of electric capacity two
Pipe F2 connections, the negative electrode of the unilateral diode D2 is connected with node d.
3. ultrahigh speed Ethernet according to claim 1 monitors surge protection device, it is characterised in that when RJ45 interface ends
Signal frequency W >=10MHz or RJ45 Interface Terminals J1 and RJ45 Interface Terminals J2 between sub- J1 and RJ45 Interface Terminals J2
Between transmission rate R >=10Mb/s, equivalent capacity C between the line pair between a-signal line and B signal linej≤60pF。
4. ultrahigh speed Ethernet according to claim 1 monitors surge protection device, it is characterised in that when RJ45 interface ends
Signal frequency W >=100MHz or RJ45 Interface Terminals J1 and RJ45 Interface Terminals J2 between sub- J1 and RJ45 Interface Terminals J2
Between transmission rate R >=100Mb/s, equivalent capacity C between the line pair between a-signal line and B signal linej≤20pF。
5. ultrahigh speed Ethernet according to claim 1 monitors surge protection device, it is characterised in that the low electric capacity two
Pole pipe F1 and low di-cap F2 use SELC08CI series of diode.
6. surge protection device is monitored according to any described ultrahigh speed Ethernet in claim 1 to 5, it is characterised in that institute
The circuit and device stated between RJ45 Interface Terminal J1 and RJ45 Interface Terminals J2 are integrated on pcb board, and the pcb board is four
Rotating fields, pcb board is from top to bottom followed successively by top layer, PE1 layers, PE2 layers and bottom, wherein, the electric discharge over the ground of each lightning protection unit
Pipe G3, over the ground discharge tube G4 are arranged on PE2 layers and PE1 layers；Bridge, close RJ45 Interface Terminals close to RJ45 Interface Terminals J1
J2 bridge is arranged on bottom and top layer；Bridge between bridge and No. 7 lines and No. 8 lines between No. 3 lines and No. 6 lines is set
The bridge between bridge and No. 4 lines and No. 5 lines between top/bottom, Line 1 and No. 2 lines is arranged on bottom/top layers.
7. ultrahigh speed Ethernet according to claim 6 monitors surge protection device, it is characterised in that the pcb board is thick
Spend for 1.60 ± 0.18mm.
8. ultrahigh speed Ethernet according to claim 6 monitors surge protection device, it is characterised in that on the pcb board
The copper thickness used is the one of 1/1oz, i.e., 1 ounce point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595334.1A CN107171308A (en) | 2017-07-20 | 2017-07-20 | Ultrahigh speed Ethernet monitors surge protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595334.1A CN107171308A (en) | 2017-07-20 | 2017-07-20 | Ultrahigh speed Ethernet monitors surge protection device |
Publications (1)
| Publication Number | Publication Date |
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| CN107171308A true CN107171308A (en) | 2017-09-15 |
Family
ID=59818009
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710595334.1A Pending CN107171308A (en) | 2017-07-20 | 2017-07-20 | Ultrahigh speed Ethernet monitors surge protection device |
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| CN (1) | CN107171308A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739673A (en) * | 2018-07-20 | 2020-01-31 | 硕天科技股份有限公司 | Surge protection device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5124873A (en) * | 1989-10-30 | 1992-06-23 | Efi Corporation | Surge suppression circuit for high frequency communication networks |
| CN1649228A (en) * | 2005-01-14 | 2005-08-03 | 艾默生网络能源系统有限公司 | Signal lightning protection circuit |
| CN201018277Y (en) * | 2007-02-01 | 2008-02-06 | 株洲普天中普防雷科技有限公司 | Three-in-one lightning protection device dedicated for video monitoring system |
| CN101877473A (en) * | 2010-05-14 | 2010-11-03 | 上海科晗实业有限公司 | Protection circuit in surge protector used for high-definition camera |
| CN201663438U (en) * | 2010-02-10 | 2010-12-01 | 广西地凯科技有限公司 | Two-port household appliance signal surge protective device irrespective of input and output |
| CN204391743U (en) * | 2015-01-13 | 2015-06-10 | 四川安邦威斯特电子设备有限公司 | Surge protector |
| CN105119260A (en) * | 2015-07-31 | 2015-12-02 | 杜建国 | Two-wire system channel lightning protection apparatus circuit structure |
| CN106229961A (en) * | 2016-08-16 | 2016-12-14 | 凌云光技术集团有限责任公司 | Network surge protection circuit |
| CN206922427U (en) * | 2017-07-20 | 2018-01-23 | 四川赛尔特科技有限公司 | Network's thunder device |
-
2017
- 2017-07-20 CN CN201710595334.1A patent/CN107171308A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5124873A (en) * | 1989-10-30 | 1992-06-23 | Efi Corporation | Surge suppression circuit for high frequency communication networks |
| CN1649228A (en) * | 2005-01-14 | 2005-08-03 | 艾默生网络能源系统有限公司 | Signal lightning protection circuit |
| CN201018277Y (en) * | 2007-02-01 | 2008-02-06 | 株洲普天中普防雷科技有限公司 | Three-in-one lightning protection device dedicated for video monitoring system |
| CN201663438U (en) * | 2010-02-10 | 2010-12-01 | 广西地凯科技有限公司 | Two-port household appliance signal surge protective device irrespective of input and output |
| CN101877473A (en) * | 2010-05-14 | 2010-11-03 | 上海科晗实业有限公司 | Protection circuit in surge protector used for high-definition camera |
| CN204391743U (en) * | 2015-01-13 | 2015-06-10 | 四川安邦威斯特电子设备有限公司 | Surge protector |
| CN105119260A (en) * | 2015-07-31 | 2015-12-02 | 杜建国 | Two-wire system channel lightning protection apparatus circuit structure |
| CN106229961A (en) * | 2016-08-16 | 2016-12-14 | 凌云光技术集团有限责任公司 | Network surge protection circuit |
| CN206922427U (en) * | 2017-07-20 | 2018-01-23 | 四川赛尔特科技有限公司 | Network's thunder device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739673A (en) * | 2018-07-20 | 2020-01-31 | 硕天科技股份有限公司 | Surge protection device |
| CN110739673B (en) * | 2018-07-20 | 2021-12-14 | 硕天科技股份有限公司 | Surge protection device |
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