CN2798387Y - Wired signal thunder protector - Google Patents
Wired signal thunder protector Download PDFInfo
- Publication number
- CN2798387Y CN2798387Y CN 200520034261 CN200520034261U CN2798387Y CN 2798387 Y CN2798387 Y CN 2798387Y CN 200520034261 CN200520034261 CN 200520034261 CN 200520034261 U CN200520034261 U CN 200520034261U CN 2798387 Y CN2798387 Y CN 2798387Y
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- lightning
- lightning protection
- circuit
- ground connection
- protection element
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Abstract
The utility model relates to a lightning arrester used for protecting multiple pairs of wired communication signals, which comprises not less than two wired communication signal lightning protection unit circuits, a grounding assembly wire and a grounding conductor connected with a grounding electrode, wherein the lightning current output end of the lightning protection unit circuit is linked with the grounding assembly wire which is linked with one end of the grounding conductor of which the other end is linked with the grounding electrode and the lightning protection unit circuit is arranged in parallel. Compared with the mode of using one protection unit circuit to be grounded alone for protecting one pair of wired communication signals of the prior art, the utility model avoids the defects caused by multipoint earthing of the prior art and has the advantages of low cost, convenient and rapid installation and construction, thorough lightning current discharge, favorable effect of lightning protection and high performance-price ratio of devices.
Description
One, technical field
The utility model relates to a kind of communication equipment lightning protection technology, more particularly, relates to a kind of lightning arrester that is used for many groups of wire communication signal protections, as the lightning protection device of wire communication equipment such as telephone set, facsimile machine.
Two, background technology
The lightning protection of wire communication equipment such as the telephone set of present prior art, facsimile machine; be to adopt the unit protection mostly; be that a pair of wire communication signal is protected with the lightning arrester of an independent grounding; each lightning arrester all comprises a lightning protection element circuit, connects with the earth lead and the grounding electrode of independent configuration.The a pair of wire communication signal of prior art is protected with the lightning arrester of an independent grounding; for the wire communication signal to few situation or acceptable; but it is wide to distribute for communication; the many situations of communication apparatus configuration; need lightning protection wire communication signal to inevitable a lot; at this moment still adopt the unit protection of prior art, its technical deficiency is fairly obvious.One, because each protected location all will be equipped with earth lead, grounding electrode and protected location lightning arrester shell, therefore, many structures are loaded down with trivial details except connecting up, outside construction volume and difficulty increased, the cost of lightning protection facility also increased greatly.They are two years old; for many communication apparatus to the wire communication signal are arranged; because each protected location all is equipped with an earth lead; the inductance value that many earth leads add up will increase greatly, improved the current potential of earthing device, and multipoint earthing also cause certain position loose contact easily; increase contact resistance; thereby influence the bleed off of lightning current, insufficient to equipment protection, do not reach expected effect.
Three, summary of the invention
At many deficiencies that wire communication signal lightning protection technology is existed of prior art, the purpose of this utility model aims to provide a kind of installation easy-to-connect, quick, and lightning protection facility cost is low, and protection is used for the wire signal lightning arrester fully.
Above-mentioned purpose of the present utility model can realize by the lightning arrester with following technical scheme.
Be used for the wire signal lightning arrester; comprise that the wire communication signal that is no less than 2 is to the lightning protection element circuit; ground connection compile line and with the joining earth lead of grounding electrode; the said lightning protection element circuit that is no less than 2 is arranged in parallel; the lightning current earial drainage output of lightning protection element circuit compiles line with ground connection and connects, and its other end of the earth lead that connects with grounding electrode compiles line with ground connection and connects.
The above-mentioned wire signal lightning arrester that is used in use is arranged on protected wire communication device signal input front end.Each cell protection circuit of lightning arrester all is made of gas discharge tube, piezo-resistance and decoupling resistance, and wherein gas discharge tube constitutes the first order protective circuit of protected location circuit, the thin protective circuit that piezo-resistance constitutes.Said thin level protective circuit is constituted by the differential mode circuit that the common-mode circuit that is made of two piezo-resistances and piezo-resistance constitute.Said decoupling resistance is a wire-wound resistor.The output of lightning protection element circuit can directly compile line with ground connection and connect, and also can compile line with ground connection by ground connection distribution system line and connect.
In combinations thereof type wire communication signal lightning arrester technical scheme, be no less than two groups lightning protection element circuit and the ground connection that are arranged in parallel are compiled line and are integrated in the printed board.Output for the lightning protection element circuit compiles the joining line construction of line by ground connection distribution system line and ground connection, and ground connection distribution system line and protected location circuit and ground connection are compiled line and is integrated in the printed board in the lump.
Lightning arrester is an enclosed construction, is integrated with lightning protection element circuit and ground connection and compiles the printed board of line and be placed in the box body, and the input-output line of communication signal and lightning protection earthing lead are drawn respectively from the wiring hole on the box body.Said box body is the metal material box body.
Grounding electrode and lead wire resistance thereof, as the grounding electrode of " working earthing " or " protective earthing ", this resistance can be ignored.But as " thunder resisting equipment ground connection " grounding electrode, this resistance will become the key factor that influences the wire signal lightning protection in the repid discharge process of lightning wave.Therefore be the key factor that lightning protection device (lightning arrester) design is considered.
The voltage that lightning current produces in lead is:
E＝Ri+Ldi/dt
Wherein Ldi/dt is produced by inductance, and di/dt is a thunder and lightning wave head steepness, and the order of magnitude is very big, be about several kiloamperes of every microsecond, therefore the length of lead is very big to the voltage influence that is produced by inductance, is very important factor, and the current potential of lightning protection device improves along with the growth of earth lead.Long lead has not only improved the current potential of earthing device, also can cause glimmering between the adjacent conductive object.This is unallowed.Therefore, can not be oversize with the joining earth lead of grounding electrode, otherwise will influence the bleed off of lightning current.
The utility model just is being based on above-mentioned principle and is designing.Many lightning protection element circuits to the wire communication signal are integrated in the printed board, and the ground wire of all protected location circuit and thicker ground connection compiling are covered copper cash and link, and come together in the printed board, then with the long 1.5mm of a 1m
2Insulated conductor and cover copper cash ground connection compiling and in printed board, weld and draw, connect with grounding electrode.With 20 pairs of wire communication signal lightning protections is example; the a pair of wire communication signal that adopts prior art with one independently lightning arrester protect; the design length of supposing each root earth lead of each protected location is 0.5m; the length of 20 pairs of wire communication signal protection unit accumulative total earth leads is so; 20 * 0.5m=10m; the combined wire communication signal lightning arrester that adopts the utility model to disclose; the length of earth lead has only 1m; the length that only is 1/10. earth lead of prior art significantly reduces; simultaneously the inductance value of earth lead also only for a pair of wire communication signal of prior art with an independent protection unit protect 1/10, thereby improved protected equipment and personnel's safety greatly.
The combined wire communication signal lightning arrester that the utility model discloses is protected with an independent protection unit with a pair of wire communication signal of prior art and is compared, and except above said advantage, also has following relatively more outstanding technique effect.
1; the utility model is owing to be that many lightning protection element circuits to the wire communication signal are integrated in the printed board; the ground wire of all protected location circuit compiles line and earth lead and grounding electrode by a ground connection and links; therefore; each protected location compared to prior art must be distinguished independent grounding; wiring is few; simple in structure; the wiring installation is convenient; fast; in addition; because many lightning protection element circuits to the wire communication signal are integrated in the printed board and are placed in the box body; the box body member has only one; separately protected than every pair of wire communication signal with a protected location; saved a large amount of structural members such as box body, therefore, manufacturing cost and installation cost all reduce greatly.
2, each protected location difference independent grounding of prior art; not only many earth connections add up inductance value increases; improved the current potential of earthing device; and because earth point is many; the probability that certain position loose contact occurs greatly increases; promptly cause contact resistance to increase easily, thereby influence the bleed off of lightning current, insufficient to equipment protection.No matter and how many utility model wire communication signals only connect with grounding electrode with an earth lead, earth point is few, thereby has overcome the shortcoming that each protected location independent grounding of prior art is caused fully, has improved the reliability of lightning protection greatly.
3, lightning protection element circuit of the present utility model contains elementary protective circuit and thin level protective circuit.Three grades of gas discharge tubes are adopted in elementary protection, and three grades of synchronous interactions are protected more effective.The decoupling resistance of input/output terminal adopts accurate wire-wound resistor, has good anti-single pulse impact capacity, impacts the back resistance and stablizes, and is not acted upon by temperature changes, and clamper is stable.Piezo-resistance is adopted in thin level protection, and the reverse impact tolerance improves greatly than Transient Suppression Diode or other lightning protection component.Thin level protection is the full guard pattern, not only has the differential mode protection but also have the full guard pattern of common mode protection.
4, the utility model is because the transmission rate height, can be up to 2Mbit/s, so data is reliable, can error code, obliterated data not, and can guarantee the equipment operate as normal.
5, nominal discharge current of the present utility model is big, can reach 8/20 μ s, 5kA, maximum discharge current 8/20 μ s, 10kA.
6, the utility model is based on the advantage of above several aspects, and cost performance improves greatly, and reliability also improves thereupon.
Four, description of drawings
Accompanying drawing 1 is a grounding system schematic diagram of the present utility model.
Accompanying drawing 2 is cell protection circuit diagrams of the present utility model.
Accompanying drawing 3 is cut-away views of the present utility model.
In above-mentioned accompanying drawing 1, a is a grounding electrode, and b is an earth lead, and c is that ground connection is compiled line, and d is the ground connection distribution system, and e is for being grounded part.In above-mentioned accompanying drawing 2, V1 is a gas discharge tube, and R1, R2 are decoupling resistance, and RV1, RV2 and RV3 are piezo-resistance.In above-mentioned accompanying drawing 3,1 zoarium, 2 printed boards, 3 cell protection circuit, 4 signal input-output lines are drawn jack, 5 hinges, 6 lids.
Five, embodiment
The combined wire communication signal lightning arrester that the utility model discloses, its concrete structure is shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3.The combined wire communication signal lightning arrester that is used for 20 pairs of wire communication signal port lightning protections is 1.5mm by 20 lightning protection element circuits 3 that are arranged in parallel with as a diameter of earth lead
2, be about to the insulated conductor of 1m and constitute; the lightning current output of lightning protection element circuit 3; promptly being grounded part e compiles line c by ground connection distribution system line d and ground connection and prints and connect; compile line c welding with the joining earth lead b of the grounding electrode a other end and ground connection and connect, 20 lightning protection element circuits 3 compile line c with ground connection distribution system line d and ground connection and are integrated in the printed board 2.Be integrated with lightning protection element circuit, ground connection distribution system line and ground connection and compile the printed board fixed in position of line in box body.Box body 1 connects by hinge 5 with lid 6, is made by metal material, is the open type closed structure.Communication signal input-output line and the earth lead jack 4 of drawing from the box body are respectively drawn.In the right lightning protection element circuit of wire communication signal, be that three grades of gas discharge tubes of 3R230 constitute the first order protective circuit in the lightning protection element circuit by model; By model is that piezo-resistance RV1, the RV2 of 10D151K and RV3 constitute the thin level protective circuit in the lightning protection element circuit; By resistance value is that wire-wound decoupling resistance R1, the R2 of 2.2 Ω constitutes the decoupling circuit in the lightning protection element circuit.In the thin level protective circuit that is made of piezo-resistance RV1, RV2 and RV3, RV1, RV2 have constituted common-mode circuit, and RV3 has constituted the differential mode protective circuit, and circuit protection has formed the full guard pattern, not only have the common mode protection but also have the differential mode protection.The right input-output line of wire communication signal all adopts the no thread terminals of 625 series, and pin is apart from 5.08mm, 45 ℃ of angle plug wires, so easy-to-connect is quick.
Claims (8)
1, a kind of wire signal lightning arrester; comprise that the wire communication signal that is no less than 2 is to the lightning protection element circuit; the lightning protection element circuit and with the joining earth lead of grounding electrode; it is characterized in that also including ground connection compiles line; the said lightning protection element circuit that is no less than 2 is arranged in parallel; the lightning current earial drainage output of lightning protection element circuit compiles line with ground connection and connects, and with the joining earth lead of grounding electrode, its other end compiles line with ground connection and connects.
2, wire signal lightning arrester according to claim 1; it is characterized in that said lightning protection element circuit is made of gas discharge tube, piezo-resistance and decoupling resistance; wherein gas discharge tube constitutes the first order protective circuit of protected location circuit, and piezo-resistance constitutes the thin level protective circuit of protected location circuit.
3, wire signal lightning arrester according to claim 2 is characterized in that said thin level protective circuit is constituted by the differential mode circuit that the common-mode circuit that is made of two piezo-resistances and piezo-resistance constitute.
4, wire signal lightning arrester according to claim 2 is characterized in that said decoupling resistance is a wire-wound resistor.
5,, it is characterized in that said and the lightning protection element circuit that can be provided with and ground connection are compiled line and is integrated in the printed board according to claim 1 or 2 or 3 or 4 described wire signal lightning arresters.
6, wire signal lightning arrester according to claim 5, the output that it is characterized in that the lightning protection element circuit compiles line by ground connection partition line and ground connection and connects.
7, wire signal lightning arrester according to claim 5; it is characterized in that being integrated with lightning protection element circuit and ground connection and compile the printed board of line and be placed in the box body, the input-output line of communication signal and lightning protection earthing lead are drawn respectively from the wiring hole on the box body.
8, wire signal lightning arrester according to claim 7 is characterized in that said box body is the metal material box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034261 CN2798387Y (en) | 2005-05-24 | 2005-05-24 | Wired signal thunder protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034261 CN2798387Y (en) | 2005-05-24 | 2005-05-24 | Wired signal thunder protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2798387Y true CN2798387Y (en) | 2006-07-19 |
Family
ID=36869635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520034261 Expired - Lifetime CN2798387Y (en) | 2005-05-24 | 2005-05-24 | Wired signal thunder protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2798387Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265800A (en) * | 2019-05-21 | 2019-09-20 | 中国建筑第八工程局有限公司 | Based on the earthing or grounding means and its construction method under the conditions of plate brad supporting |
| CN110879305A (en) * | 2019-11-06 | 2020-03-13 | 国网天津市电力公司 | A lightning arrester online monitoring junction box |
-
2005
- 2005-05-24 CN CN 200520034261 patent/CN2798387Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265800A (en) * | 2019-05-21 | 2019-09-20 | 中国建筑第八工程局有限公司 | Based on the earthing or grounding means and its construction method under the conditions of plate brad supporting |
| CN110879305A (en) * | 2019-11-06 | 2020-03-13 | 国网天津市电力公司 | A lightning arrester online monitoring junction box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN ZHONGGUANG LIGHTNING PROTECTION TECHNOLOGY Free format text: FORMER OWNER: ZHONGGUANG HIGH TECH INST., CO., LTD., SICHUAN Effective date: 20110110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610023 GROUP 2, BAOJIANGQIAO, CHENGDU CITY, SICHUAN PROVINCE TO: 611731 NO.19, TIANYU ROAD, WESTERN PARK, HIGH-TECH. ZONE, CHENGDU CITY, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110110 Address after: Tianyu Chengdu road 611731, Sichuan province high tech Zone West Park No. 19 Patentee after: Sichuan Zhongguang Lightning Protection Technologies Co., Ltd. Address before: 610023 Jiangqiao two packs, Sichuan, Chengdu Patentee before: Zhongguang High Tech Inst., Co., Ltd., Sichuan |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150524 Granted publication date: 20060719 |