CN202424154U - Network lightning protection device - Google Patents
Network lightning protection device Download PDFInfo
- Publication number
- CN202424154U CN202424154U CN2011203723714U CN201120372371U CN202424154U CN 202424154 U CN202424154 U CN 202424154U CN 2011203723714 U CN2011203723714 U CN 2011203723714U CN 201120372371 U CN201120372371 U CN 201120372371U CN 202424154 U CN202424154 U CN 202424154U
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- lightning protection
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- circuit
- thunder
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Abstract
The utility model discloses a network lightning protection device which comprises a lightning protection instrument, and is characterized by also comprising a plurality of diodes, wherein the diodes are arranged among a plurality of groups of dual-twisted wires for connecting a network; the lightning protection instrument is arranged between the dual-twisted wire groups and the ground; a plurality of diodes are connected in series among the dual-twisted wires clockwise and anticlockwise; and the lightning protection instrument is connected between the dual-twisted wire groups and the ground. The conventional energy matching device is not adopted in the lightning protection device; and the lightning protection device has the advantages of low impedance, low insertion loss, low capacitance, low interference level and the like.
Description
Technical field
The utility model relates to the network ' s thunder technical field, more specifically, relates to a kind of network ' s thunder device, is mainly used in lightning protection to the gigabit networking signal transmission system is provided.
Background technology
Shocking preventing technology is divided into direct lightning strike protection and induction thunder protection two big categories, and the induction thunder causes the probability of damage to be higher than direct lightning strike far away to present microelectronic device.Network ' s thunder belongs to induction thunder protection category, in direct lightning strike is released process, as long as there is the place of circuit all can form transient voltage; Thereby the equipment to the circuit two ends forms damage, so the protection of network signal lightning protection device has directivity; The lightning current of sensing on netting twine road direction along the line two ends are impacted; Handle so need the network terminal device all need do lightning protection, otherwise can not take into account from beginning to end, do not have due protection effect.
The network signal lightning protection device need mate with the network signal transmission rate; Transmission rate is divided into two kinds of 100,000,000 (100Mbps) and gigabits (1000Mbps) usually; The kilomega network transfer of data has particularity, should describe with some special parameters: decay, far and near end are crosstalked, distance is held return loss, ratio is crosstalked in decay, the power total value of crosstalking is to weigh the important parameter of gigabit networking performance, must reach requirement simultaneously; Have one defective, it is defective to be regarded as the network ' s thunder device.It is not just can weigh with Insertion Loss, one or two data of transmission rate.Therefore, the gigabit networking lightning protection device must possess the requirement of network performance, otherwise it will be inapplicable.
Find that through preliminary search the technical scheme of existing network lightning protection is also few, and is following about the more representational technical scheme of gigabit networking lightning protection:
One; Application number is that 200510109160.0 patent of invention discloses a kind of siganl thunder-proof device, comprises one-level protection circuit and two stages of circuit, and the one-level protection circuit is connected between holding wire and the ground; It is characterized in that; Said two stages of circuit is one or more, and the signal processing circuit that each two stages of circuit and at least one need protection is connected in parallel, an end ground connection of two stages of circuit and signal processing circuit; The other end is connected to holding wire through filter circuit, and the frequency separation that said filter circuit allows to pass through is more than or equal to the processing frequency range of connected signal processing circuit.
Two; Application number is that 200520108975.2 utility model patent discloses a kind of kilomega network lightning protection device; Comprise an one-level thunder and lightning leadage circuit, a decoupling circuit and a secondary thunder and lightning leadage circuit; And be connected between the input and output of said lightning protection device according to said sequence, said three partial circuits all are connected respectively on 8 network data lines; Also can comprise an anti-jamming circuit, said anti-jamming circuit is connected between the input and output of said lightning protection device.
The shortcoming of prior art scheme is: in order to reach higher through-current capacity and to obtain lower residual voltage level; The network ' s thunder device adopts multistage lightning protection components and parts combination mostly at present; Adopt energy to cooperate device to carry out decoupling in the middle of the multistage lightning protection components and parts, guarantee that back level 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 cooperates device to be series in the major loop; Demonstrate bigger impedance; Again because a level lightning protection component in back demonstrates bigger electric capacity in high frequency, thereby cause when causing being linked into the series connection of network ' s thunder device in the main circuit and insert loss increase, signal attenuation, influence Network Transmission.
Therefore, be necessary prior art is improved.
Summary of the invention
The technical problem that the utility model will solve is: network ' s thunder device of the prior art; Because energy cooperates device to be series in the major loop; Cause impedance bigger; Again since after be that lightning protection component demonstrates bigger electric capacity in high frequency, thereby cause when causing being linked into network ' s thunder device series connection in the main circuit and insert loss increase, signal attenuation, influence Network Transmission.To deficiency of the prior art, the utility model provides that a kind of parasitic capacitance is little, the residual voltage level is low, lightning protection circuit and transmission circuit network ' s thunder device arranged apart.
The utility model adopts following technical scheme for the technical solution problem:
A kind of network ' s thunder device comprises lightning protection component, it is characterized in that: also comprise some diodes, said diode is arranged between the some groups of twisted-pair feeders that are used for the network connection, and said lightning protection component is arranged between said set of twisted pair and the ground.
Further, positive and negative some diodes of connecting between every group of twisted-pair feeder, the voltage at said diode string two ends is not less than the operating voltage between the twisted-pair feeder, is not higher than the highest residual voltage value that twisted-pair feeder can bear.
Further, said lightning protection component is connected between said diode string and the ground.
Said lightning protection component is the GDT gas discharge tube, perhaps is other lightning protection components.
Said lightning protection component and said diode circuit and electric connection line thereof are arranged on the ordinary electronic wiring board, and twisted-pair feeder and other are used for circuit and the apparatus arrangement of network wire size transmission at the High-Frenquency Electronic Circuit plate, and lightning protection circuit is separated with signal circuit.
The advantage of the utility model is: 1, the said lightning protection device of the utility model has been abandoned traditional energy cooperation device, has reduced the impedance of circuit, network ' s thunder device insertion loss is reduced to meets the requirements of the standard, and makes network transmission performance more superior; 2, between the online and line diode circuit is set, makes lightning protection circuit electric capacity drop to minimum, reduce the interference of lightning protection circuit to the signal transmission, the diode circuit residual voltage is extremely low simultaneously, can protecting network equipment can operate as normal under thunder and lightning and over-voltage condition.
Description of drawings
Fig. 1 is the circuit structure diagram of the said network ' s thunder device of the utility model;
Among the figure: 1 ~ 8 for being used for the twisted-pair feeder that network connects, and D is a diode circuit, and GDT is the GDT gas discharge tube.
Embodiment
Coming further to set forth the utility model below in conjunction with accompanying drawing and embodiment, is lightning protection component with the GDT gas discharge tube, is the lightning protection object with the gigabit networking.
A kind of network ' s thunder device comprises lightning protection component GDT, it is characterized in that: also comprise some diodes, said diode is arranged between 4 groups of twisted-pair feeders that are used for the network connection, and said lightning protection component GDT is arranged between said set of twisted pair and the ground.
Further, positive and negative some diodes of connecting between every group of twisted-pair feeder, the voltage at said diode string two ends is not less than the operating voltage between the twisted-pair feeder, is not higher than the highest residual voltage value that twisted-pair feeder can bear.
Further, said lightning protection component is connected between said diode string and the ground.
Said lightning protection component is the GDT gas discharge tube, perhaps is other lightning protection components.
Said lightning protection component and said diode circuit and electric connection line thereof are arranged on the ordinary electronic wiring board, and twisted-pair feeder and other are used for circuit and the apparatus arrangement of network wire size transmission at the High-Frenquency Electronic Circuit plate, and lightning protection circuit is separated with signal circuit.
Embodiment
As shown in Figure 1, as the lightning protection object, the combination of twisted-pair feeder is respectively line 1 and line 2, line 3 and line 6, line 4 and line 5, line 7 and line 8 with the gigabit networking of four groups of twisted-pair feeder transmission signals.
A kind of lightning protection device that is used for this gigabit networking; Comprise the GDT pipe; Also comprise diode, positive and negative several diodes of connecting between every group of twisted-pair feeder, the operating voltage between the said twisted-pair feeder is 5V; The conduction terminal voltage of a diode is 0.7V, so want 8 diodes of positive anti-series could guarantee the circuit operate as normal at least; If diode is too much, can cause diode string two ends residual voltage too high again, damage equipment, in this example, 10 diodes of maximum positive and negative series connection between the twisted-pair feeder.
Said lightning protection component is selected the GDT gas discharge tube for use, and said GDT gas discharge tube is connected between diode string and the ground.
The lightning protection operation principle of the foregoing description is: when lightning current or overcurrent flow through twisted-pair feeder, can electric current be caused the GDT gas discharge tube through the diode string, play the effect of protection equipment; When lightning current when come in the circuit two ends, the diode string of positive and negative setting can guarantee that the lightning current that both direction is come in is clamped at below the 7V, plays the effect of protection equipment.
The utility model also can be used for the lightning protection of other networks, and the quantity that only needs to change diode between line and the line gets final product, and all distortion that does not break away from the utility model spirit all should be regarded as within the protection range of the utility model.
Claims (5)
1. a network ' s thunder device comprises lightning protection component, it is characterized in that: also comprise some diodes, said diode is arranged between the some groups of twisted-pair feeders that are used for the network connection, and said lightning protection component is arranged between said set of twisted pair and the ground.
2. according to the said a kind of network ' s thunder device of claim 1; It is characterized in that: positive and negative some diodes of connecting between every group of twisted-pair feeder; The voltage at said diode string two ends is not less than the operating voltage between the twisted-pair feeder, is not higher than the highest residual voltage value that twisted-pair feeder can bear.
3. according to claim 1 or 2 said a kind of network ' s thunder devices, it is characterized in that: said lightning protection component is connected between said diode string and the ground.
4. according to the said a kind of network ' s thunder device of claim 3, it is characterized in that: said lightning protection component is the GDT pipe, perhaps is other lightning protection components.
5. according to the said a kind of network ' s thunder device of claim 4; It is characterized in that: said lightning protection component and said diode circuit and electric connection line thereof are arranged on the ordinary electronic wiring board; Twisted-pair feeder and other are used for circuit and the apparatus arrangement of network wire size transmission at the High-Frenquency Electronic Circuit plate, and lightning protection circuit is separated with signal circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203723714U CN202424154U (en) | 2011-09-28 | 2011-09-28 | Network lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203723714U CN202424154U (en) | 2011-09-28 | 2011-09-28 | Network lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202424154U true CN202424154U (en) | 2012-09-05 |
Family
ID=46748879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203723714U Expired - Fee Related CN202424154U (en) | 2011-09-28 | 2011-09-28 | Network lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202424154U (en) |
-
2011
- 2011-09-28 CN CN2011203723714U patent/CN202424154U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HUNAN ZHONGPU LIGHTNING CO., LTD. Free format text: FORMER NAME: ZHUZHOU PUTIAN ZHONGPU THUNDER PROTECTION TECHNOLOGY CO.,LTD |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 412007 Tianyuan District, Hunan City, small and medium enterprises to promote Park, building A5 Patentee after: Hunan Zhongpu Lightning Co., Ltd. Address before: 412007 Tianyuan District, Hunan City, small and medium enterprises to promote Park, building A5 Patentee before: Zhuzhou Putian Zhongpu Lightning Protection Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412007 Tianyuan District, Hunan City, small and medium enterprises to promote Park, building A5 Patentee after: Hunan Pu Pu technology Limited by Share Ltd Address before: 412007 Tianyuan District, Hunan City, small and medium enterprises to promote Park, building A5 Patentee before: Hunan Zhongpu Lightning Co., Ltd. |
|
| 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: 20120905 Termination date: 20190928 |