CN204538693U - A kind of local area network (LAN) distributing frame network ' s thunder device - Google Patents
A kind of local area network (LAN) distributing frame network ' s thunder device Download PDFInfo
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- CN204538693U CN204538693U CN201520198444.0U CN201520198444U CN204538693U CN 204538693 U CN204538693 U CN 204538693U CN 201520198444 U CN201520198444 U CN 201520198444U CN 204538693 U CN204538693 U CN 204538693U
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- surge arrester
- core holding
- electrode surge
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Abstract
A kind of local area network (LAN) distributing frame network ' s thunder device; comprise communication line, electrode surge arrester and electrical interconnection thereof; whole lightning protection circuit electric capacity is made to drop to minimum by arranging low electric capacity electrode surge arrester; reduce lightning protection circuit to the interference of Signal transmissions, proterctive equipment can normally work under thunder and lightning and over-voltage condition.Further, described communication line is made up of many RJ45 twisted pair line, each root RJ45 twisted pair line comprises 8 core holding wires, of the present utility modelly to be characterised in that, in each root RJ45 twisted pair line, the first core holding wire of 8 core holding wires connects electrode surge arrester one pole, in every next root RJ45 twisted pair line, the first core holding wire of 8 core holding wires connects another pole of electrode surge arrester, namely every 2 RJ45 twisted pair line connections electrode surge arrester.When twisted-pair feeder because of lightning induced voltage high time, if electric current is from any heart yearn release, voltage in so whole twisted-pair feeder in other heart yearn can reduce rapidly, on the other hand, when twisted-pair feeder because of lightning induced voltage high time, so in twisted-pair feeder 8 heart yearn, the voltage of each heart yearn all can be very high, so each root twisted-pair feeder only needs the heart yearn got in 8 heart yearns to connect electrode surge arrester just can reach the object of lightning protection.
Description
Technical field
The utility model relates to a kind of lightning protection device, more specifically, relates to a kind of local area network (LAN) distributing frame network ' s thunder device, belongs to network ' s thunder technical field.
Background technology
Shocking preventing technology is divided into direct lightning strike to protect and induced lightening protection two large categories, and induced lightening causes the probability of damage far away higher than direct lightning strike to present microelectronic device.Network ' s thunder belongs to induced lightening protection category; release in process at direct lightning strike; as long as there is the place of circuit all can form transient voltage; thus damage is formed to the equipment at circuit two ends; so; network signal lightning protection device protection has directivity, and the lightning current that netting twine senses road direction two ends along the line are impacted, so need network terminal device all to need to do lightning protection process.
The modular equipment of distributing frame purposes mainly in order to manage front-end information point at local side.First enter distributing frame after between information point cable (surpassing 5 classes or the 6 class lines) access arrangement of front end, line is beaten in the module of distributing frame, then use wire jumper (RJ45 interface) connection wiring frame and switch.Distributing frame is most important assembly in network management subsystem, plays the effect of network synthesis unified management, and distributing frame front end connects subscriber equipment, and rear end connects switch, so the lightning protection of distributing frame port is very important.
Current most of distributing frame does not have lightning protection facility, small part has lightning protection facility, also there is very large deficiency in its shocking preventing technology scheme, be mainly manifested in: be terrible lower residual voltage level, current distributing frame network ' s thunder device adopts multistage lightning protection components and parts to combine mostly, energy coordination device is adopted to carry out decoupling in the middle of multistage lightning protection components and parts, guarantee that rear class equipment is not damaged by powerful lightning current or overvoltage, but the lightning protection device of this multistage lightning protection component combination is because energy coordination devices in series is in major loop, present larger impedance, again because rear class lightning protection component presents larger electric capacity in high frequency, thus cause this network ' s thunder device series connection to be received in main circuit insertion loss can be caused to increase, signal attenuation, affect the transmission of network signal.
Therefore, be necessary to improve prior art.
Summary of the invention
The technical problems to be solved in the utility model is: current most of distributing frame does not have lightning protection facility, small part has lightning protection facility, also there is very large deficiency in its shocking preventing technology scheme, be mainly manifested in: be terrible lower residual voltage level, the multistage lightning protection components and parts combination of most employing, because energy coordination devices in series is in major loop, causes impedance larger, thus cause signal attenuation, affect network signal transmission.For deficiency of the prior art, the utility model provides the distributing frame lightning protection device that a kind of parasitic capacitance is little, residual voltage level is low.
The utility model is that technical solution problem adopts following technical scheme:
A kind of local area network (LAN) distributing frame network ' s thunder device; comprise communication line, electrode surge arrester and electrical interconnection thereof; whole lightning protection circuit electric capacity is made to drop to minimum by arranging low electric capacity electrode surge arrester; reduce lightning protection circuit to the interference of Signal transmissions, proterctive equipment can normally work under thunder and lightning and over-voltage condition.
Further, described communication line is made up of many RJ45 twisted pair line, each root RJ45 twisted pair line comprises 8 core holding wires, of the present utility modelly to be characterised in that, in each root RJ45 twisted pair line, the first core holding wire of 8 core holding wires connects electrode surge arrester one pole, in every next root RJ45 twisted pair line, the first core holding wire of 8 core holding wires connects another pole of electrode surge arrester, namely every 2 RJ45 twisted pair line connections electrode surge arrester.
When twisted-pair feeder because of lightning induced voltage high time, if electric current is from any heart yearn release, voltage in so whole twisted-pair feeder in other heart yearn can reduce rapidly, on the other hand, when twisted-pair feeder because of lightning induced voltage high time, so in twisted-pair feeder 8 heart yearn, the voltage of each heart yearn all can be very high, so each root twisted-pair feeder only needs the heart yearn got in 8 heart yearns to connect electrode surge arrester just can reach the object of lightning protection.
The utility model has the advantage of: 1, lightning protection device described in the utility model is without traditional energy coordination device, decreases the impedance of circuit, network ' s thunder device insertion loss can be made greatly to reduce, make network transmission performance more superior; 2, electrode surge arrester is being set between the lines, lightning protection circuit electric capacity is being dropped to minimum, reducing lightning protection circuit to the interference of Signal transmissions; 3, the lightning protection device structure that provides of the utility model is simple, and the electrode surge arrester number of use is less, and production cost is lower.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of a kind of local area network (LAN) distributing frame network ' s thunder device described in the utility model;
In figure: D is electrode surge arrester;
1 is No. 1 twisted-pair feeder the 1st heart yearn;
2 is No. 2 twisted-pair feeders the 1st heart yearns;
3 is No. 3 twisted-pair feeders the 1st heart yearns;
：
：
：
23 is No. 23 twisted-pair feeders the 1st heart yearns;
24 is No. 24 twisted-pair feeders the 1st heart yearns;
Embodiment
The utility model is set forth further below in conjunction with the drawings and specific embodiments.
Can find out that the utility model relates to a kind of local area network (LAN) distributing frame network ' s thunder device from accompanying drawing, many twisted-pair feeders are connected at described local area network (LAN) distributing frame, in each root RJ45 twisted pair line, the first core holding wire of 8 core holding wires connects electrode surge arrester one pole, in every next root RJ45 twisted pair line, the first core holding wire of 8 core holding wires connects another pole of electrode surge arrester, namely every 2 RJ45 twisted pair line connections electrode surge arrester D, the discharge capacity of lightning protection device is improved by arranging electrode surge arrester D, reduce lightning protection circuit to the interference of Signal transmissions, proterctive equipment can normally work under thunder and lightning and over-voltage condition, improve network ' s thunder device performance.
According to a kind of local area network (LAN) distributing frame network ' s thunder device that said method proposes, it is characterized in that:
Every 2 twisted pair line connections electrode surge arrester, then connect ground wire; The voltage of described electrode surge arrester is not less than the operating voltage of twisted-pair feeder, not higher than the highest residual voltage value that twisted-pair feeder can bear.
Embodiment
As shown in Figure 1, using 24 port patch panel as lightning protection object, each port connects a RJ45 twisted-pair feeder, each root twisted pair line connection user.
A kind of local area network (LAN) distributing frame network ' s thunder device, comprises electrode surge arrester D and electric connection line thereof.
The Thunder Protection principle of above-described embodiment is: when having lightning current or overcurrent to flow through twisted-pair feeder the first heart yearn; electrode surge arrester is breakdown; present conducting state; electric current is made to flow to the earth by electrode surge arrester D; play the effect of proterctive equipment; when twisted-pair feeder is in normal working voltage, electrode surge arrester D is in cut-off state, on communication not impact.
When twisted-pair feeder because of lightning induced voltage high time, if electric current is from any heart yearn release, voltage in so whole twisted-pair feeder in other heart yearn can reduce rapidly, on the other hand, when twisted-pair feeder because of lightning induced voltage high time, so in twisted-pair feeder, the voltage of 8 heart yearns all can be very high, so each root twisted-pair feeder only needs the heart yearn got in 8 heart yearns to connect electrode surge arrester just can reach the object of lightning protection.
When lightning induction produce temporary overvoltage act on electrode surge arrester one pole make it discharge time, the free electron that tube interior is produced by gas ionization can cause ionization by impact at another interpolar rapidly, also discharged very soon in another pole, this just substantially reduces the discharge dispersity of two interpolars.In addition, after wherein between pair of electrodes, cut-off is discharged, due to the composite action of a large amount of charged particle (electronics and ion), electron amount in pipe will be reduced greatly, thus can promptly suppress another to interelectrode ionization by impact, make this end very soon the discharge process of interpolar, what this also just substantially reduced two pairs of interpolars blocks dispersiveness.Which improves the stability of communication line.
The utility model also can be used for the lightning protection of other networks, and all distortion not departing from the utility model spirit, all should be considered as within protection range of the present utility model.
Claims (1)
1. a local area network (LAN) distributing frame network ' s thunder device, it is characterized in that, comprise communication line, electrode surge arrester and electrical interconnection thereof, described communication line is made up of many RJ45 twisted pair line, each root RJ45 twisted pair line comprises 8 core holding wires, in each root RJ45 twisted pair line, the first core holding wire of 8 core holding wires connects electrode surge arrester one pole, in every next root RJ45 twisted pair line, the first core holding wire of 8 core holding wires connects another pole of electrode surge arrester, namely every 2 RJ45 twisted pair line connections electrode surge arrester, whole lightning protection circuit electric capacity is made to drop to minimum by arranging low electric capacity electrode surge arrester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520198444.0U CN204538693U (en) | 2015-04-03 | 2015-04-03 | A kind of local area network (LAN) distributing frame network ' s thunder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520198444.0U CN204538693U (en) | 2015-04-03 | 2015-04-03 | A kind of local area network (LAN) distributing frame network ' s thunder device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204538693U true CN204538693U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520198444.0U Expired - Fee Related CN204538693U (en) | 2015-04-03 | 2015-04-03 | A kind of local area network (LAN) distributing frame network ' s thunder device |
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| Country | Link |
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| CN (1) | CN204538693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701834A (en) * | 2015-04-03 | 2015-06-10 | 胡清桂 | Local area network distributing frame network lightning protection device |
-
2015
- 2015-04-03 CN CN201520198444.0U patent/CN204538693U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701834A (en) * | 2015-04-03 | 2015-06-10 | 胡清桂 | Local area network distributing frame network lightning protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20180403 |