CN204497738U - A kind of lightning protection device - Google Patents
A kind of lightning protection device Download PDFInfo
- Publication number
- CN204497738U CN204497738U CN201520187684.0U CN201520187684U CN204497738U CN 204497738 U CN204497738 U CN 204497738U CN 201520187684 U CN201520187684 U CN 201520187684U CN 204497738 U CN204497738 U CN 204497738U
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- China
- Prior art keywords
- pressure limiting
- lightning
- panel
- circuit
- box body
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of lightning protection device, be made up of erecting of panel stud, panel, inner ground circuit board and earthed circuit plate socket, grounding screw, box body, installation component, lightning protection circuit plate, lightning-protection module unit, inner mounting panel, box body and lightning-protection module unit are fixed on panel, lightning-protection module unit is by inner ground circuit board and earthed circuit plate outlet ground, and panel and box body are fixed by erecting of panel Stud connection; Internal lighting protection circuit comprises signal input output interface and the first pressure limiting circuit; described first pressure limiting circuit comprises into gas discharge tube and the pressure limiting resistance of electrical connection; gas discharge tube is connected with signal input part interface; pressure limiting resistance is connected with signal output part interface; be provided with between the first pressure limiting circuit and signal input part interface second pressure limiting circuit the utility model have install simple and easy; the feature such as easy to maintenance, can make computer data signal, signal of communication obtains effective lightning protection, surging prevention.
Description
Technical field
The utility model relates to a kind of protective device, specifically a kind of lightning protection device.
Background technology
Lightning protection device is mainly used in resisting the inductive thunderbolt and the surge of video, audio frequency, computer network, control signal and supervisory control system etc., and product category is various, and style also differs from one another.Lightening arresting method popular at present adopts outside lightning protection, and as the outside lightning-protection system adopting lightning rod, downlead and grounding system to form, this lightning-protection system is subject to thunderbolt to cause fire incident mainly for the protection of building free.But, lightning protection only has outside lightning protection to be inadequate, lightning wave can invade the metallic conduit etc. of each electrical path as power line, holding wire, the high voltage produced by it and surge voltage have great harm to communication apparatus, network, information, system, light then damage circuit, heavy then damage equipment, and even systemic breakdown, cause immeasurable loss.
Utility model content
The purpose of this utility model is to provide a kind of lightning protection device, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of siganl thunder-proof device, it is characterized in that being made up of erecting of panel stud, panel, inner ground circuit board and earthed circuit plate socket, grounding screw, box body, installation component, lightning protection circuit plate, lightning-protection module unit, inner mounting panel, box body and lightning-protection module unit are fixed on panel, lightning-protection module unit is by inner ground circuit board and earthed circuit plate outlet ground, panel and box body are fixed by erecting of panel Stud connection, and box body is 19 in2 U cabinets.Described lightning-protection module unit comprises signal input output interface and the first pressure limiting circuit, described first pressure limiting circuit comprises into gas discharge tube and the pressure limiting resistance of electrical connection, gas discharge tube is connected with signal input part interface, pressure limiting resistance is connected with signal output part interface, and inductive surge or thunder and lightning carry out entering pressure limiting resistance after pressure limiting through gas discharge tube and carry out current limliting; The second pressure limiting circuit is provided with between the first pressure limiting circuit and signal input part interface, be provided with the second pressure limiting circuit, inductive surge or thunder and lightning carry out after the first low pressure limiting through gas discharge tube, enter the second pressure limiting circuit through pressure limiting resistance and carry out pressure limiting, form discharge loop with ground strip, described gas discharge tube and pressure limiting resistance are for being arranged in series simultaneously.
Compared with prior art, the beneficial effects of the utility model are: the utility model adopts modular construction, and module number can configure as required, conserve space, avoid waste, and what possess abundance carries out ability simultaneously, and discharge capacity is large, can reach 10kA.Integrate secondary to protect, reaction time is fast, efficiency is high, safe and reliable, function is many, can install the multiple different classes of lightning-protection modules such as video, audio frequency, computer network, control signal, supervisory control system and power supply simultaneously, possesses multiple lightning protection function, install simple and easy, exempt from tool maintenance, internal lighting protection is effective.
Accompanying drawing explanation
Fig. 1 is a kind of overall structure schematic diagram of lightning protection device.
Fig. 2 is a kind of internal structure schematic diagram of lightning protection device.
Fig. 3 is lightning-protection module circuit theory diagrams in a kind of lightning protection device.
In figure: 1-erecting of panel stud, 2-panel, 3-inner ground circuit board and earthed circuit plate socket, 4-grounding screw, 5-box body, 6-installation component, 7-lightning protection circuit plate, 8-lightning-protection module unit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-2, in the utility model embodiment, a kind of lightning protection device, is made up of erecting of panel stud 1, panel 2, inner ground circuit board and earthed circuit plate socket 3, grounding screw 4, box body 5, installation component 6, lightning protection circuit plate 7, lightning-protection module unit 8, inner mounting panel; Box body 5 and lightning-protection module unit 8 are fixed on panel 2, can change lightning-protection module unit 8, do not affect the normal work of other lightning-protection module unit 8 during dismounting after dismounting; Be arranged on inner ground circuit board on inner mounting panel and earthed circuit plate socket 3 is connected ground connection with lightning-protection module unit 8; Panel 2 and box body 5 are connected and fixed by erecting of panel stud 1, and erecting of panel stud 1 is for exempting from tool ejector stud; Grounding screw 4 is for the grounding connection of lightning protection device; Installation component 6 is suitable for various 19 inches of racks, frames, also can hang wall simultaneously and install; Box body 5 is 19 in2 U cabinets; Electronic devices and components installed by lightning protection circuit plate 7.
Refer to Fig. 3, the overvoltage of lightning protection circuit adopts two class protection mode, comprise signal input part interface RJ1, signal output part interface RJ2, first pressure limiting circuit and the second pressure limiting circuit, first pressure limiting circuit comprises into the gas discharge tube F1 of electrical connection, F2 and pressure limiting resistance R1, R2, R3, R4, gas discharge tube F1, F2 is connected with signal input part interface RJ1, pressure limiting resistance R1, R2, R3, R4 is connected with signal output part interface RJ2, second pressure limiting circuit is arranged between the first pressure limiting circuit and signal input part interface RJ2, this second pressure limiting circuit is made up of VD clamp circuit and diode D1-D10.First pressure limiting circuit is thick protective circuit, and the second pressure limiting circuit is thin protective circuit, and thick protective circuit can discharge the overvoltage surge of large discharge capacity, and thin protective circuit is for discharging the overvoltage surge of little discharge capacity.Inductive surge or thunder and lightning carry out, after the first low pressure limiting, entering the second pressure limiting circuit carry out pressure limiting through pressure limiting resistance R1, R2, R3, R4 through gas discharge tube F1, F2, form discharge loop with ground strip simultaneously.Signal input output interface can select the interfaces such as RJ11 or RJ45, and the gas discharge tube of 5-10KA can be adopted in the first pressure limiting circuit as protection device, and TVS (VD) pipe fitting of 1500W can be adopted in the second pressure limiting circuit as protection device.
Operation principle of the present utility model is: when occurring when being struck by lightning; inductive surge overvoltage is introduced through input ground RJ45 interface end; by gas discharge tube F1, F2, common mode is carried out to overvoltage surge, differential mode is protected; now; overvoltage is weakened severely about about 500V, through pressure limiting resistance R1, R2, R3, R4 current limliting, after the second pressure limiting circuit of VD and D1-D10 composition carries out secondary pressure limiting; voltage to signal output part RJ2 is clamped at about 15V, thus realizes the protection to signalling arrangement.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (1)
1. a lightning protection device, comprise lightning protection device body, it is characterized in that, described lightning protection device body is by erecting of panel stud (1), panel (2), inner ground circuit board and earthed circuit plate socket (3), grounding screw (4), box body (5), installation component (6), lightning protection circuit plate (7), lightning-protection module unit (8), inner mounting panel is formed, box body (5) and lightning-protection module unit (8) are fixed on panel (2), lightning-protection module unit (8) is by inner ground circuit board and earthed circuit plate socket (3) ground connection, panel (2) and box body (5) are connected and fixed by erecting of panel stud (1), box body (5) is 19 in2 U cabinets, internal lighting protection circuit comprises signal input output interface and the first pressure limiting circuit, described first pressure limiting circuit comprises into gas discharge tube and the pressure limiting resistance of electrical connection, gas discharge tube is connected with signal input part interface, pressure limiting resistance is connected with signal output part interface, and inductive surge or thunder and lightning to carry out after pressure limiting through gas discharge tube and enter pressure limiting resistance, between the first pressure limiting circuit and signal input part interface, be provided with the second pressure limiting circuit, inductive surge or thunder and lightning carry out the first low pressure limiting through gas discharge tube, and pressure limiting resistance also enters the second pressure limiting circuit and carries out pressure limiting, forms discharge loop with ground strip simultaneously, described gas discharge tube and pressure limiting resistance are for being arranged in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520187684.0U CN204497738U (en) | 2015-03-31 | 2015-03-31 | A kind of lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520187684.0U CN204497738U (en) | 2015-03-31 | 2015-03-31 | A kind of lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204497738U true CN204497738U (en) | 2015-07-22 |
Family
ID=53577025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520187684.0U Expired - Fee Related CN204497738U (en) | 2015-03-31 | 2015-03-31 | A kind of lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204497738U (en) |
-
2015
- 2015-03-31 CN CN201520187684.0U patent/CN204497738U/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 | ||
| 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: 20150722 Termination date: 20160331 |