CN203645318U - Video lightning protection circuit of network camera - Google Patents
Video lightning protection circuit of network camera Download PDFInfo
- Publication number
- CN203645318U CN203645318U CN201320849920.1U CN201320849920U CN203645318U CN 203645318 U CN203645318 U CN 203645318U CN 201320849920 U CN201320849920 U CN 201320849920U CN 203645318 U CN203645318 U CN 203645318U
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- lightning
- protection module
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- lightning protection
- protection
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Abstract
The utility model relates to the technical field of lightning protection, and discloses a video lightning protection circuit of a network camera. Each signal circuit is connected with the ground through a first lighting protection module and a second lightning protection module, and is also connected with a signal line through a capacitor and a silicon controlled rectifier, the signal line is also connected with the first lighting protection module and the second lightning protection module, both the first lighting protection module and the second lightning protection module include insulating shells, external sockets arranged at two ends of the insulating shells, and lightning protection circuits installed inside the insulating shells. The utility model designs the protection circuit with the capacitor, an inductor, the silicon controlled rectifier and the lightning protection modules, and a circuit which absorbs and blocks a spike pulse is formed, thereby effectively preventing a problem that an instantaneous surge is formed in induction of a lightning stroke in thunderstorm weather, the capacitor is punctured and the camera is damaged, and at the same time, the lightning modules are designed to modular structures having the insulating shells, thereby enabling replacement of the lightning modules to be convenient.
Description
Technical field
The utility model relates to lightning-protection engineering field, more particularly, and particularly a kind of video lightning protection circuit of web camera.
Background technology
General web camera is mounted in machine room, and it need to have Lighting Protection Measures, but Lighting Protection Measures of the prior art can not effectively be protected video camera; When video camera or machine room building are hit the powerful induced current of easy generation by thunder and lightning; cause instantaneous surge that the electric capacity in circuit is punctured; and then the very easy video camera that damages; even can cause fire; simultaneously the lightning-protection module in available circuit is and the structure of whole circuit integral type; in the time that lightning-protection module damages, need to change whole protective circuit, cause the waste of resource and the increase of cost.
Utility model content
The purpose of this utility model is to provide a kind of effectively video lightning protection circuit to the web camera that instantaneous surge suppresses and circuit maintenance cost is low.
In order to solve problem set forth above, the technical solution adopted in the utility model is: a kind of video lightning protection circuit of web camera, comprise multiple signal circuits, on each signal circuit, be all provided with successively access switch, the first inductance, the first lightning-protection module, the second inductance, the second lightning-protection module, electric capacity and controllable silicon, each signal circuit is all by the first lightning-protection module and the second lightning-protection module ground connection, each signal circuit is also all connected with a holding wire with controllable silicon by electric capacity, and this holding wire is also connected with the first lightning-protection module and the second lightning-protection module, described the first lightning-protection module and the second lightning-protection module include insulation crust, be located at the extraneous socket at insulation crust two ends, and be installed on the lightning protection circuit in insulation crust.
According to a preferred embodiment of the present utility model: described lightning protection circuit comprises resistance, the first gas discharge tube, the second gas discharge tube and bridge rectifier, described the first gas discharge tube is connected to the input of lightning protection circuit, described bridge rectifier is connected to the output of lightning protection circuit, described resistance is connected between the first gas discharge tube and bridge rectifier, and described the first gas discharge tube is also through the second gas discharge tube ground connection.
Compared with prior art; the beneficial effects of the utility model are: the utility model design has formed a circuit that spike absorbs, blocks with the protective circuit of electric capacity, inductance, controllable silicon and lightning-protection module; effectively prevent the instantaneous surge that in thunderstorm weather, indirect lightning strike forms; problem electric capacity being punctured and cause video camera to damage; lightning-protection module is designed to have the modular construction of insulation crust simultaneously, can makes the replacing of lightning-protection module convenient.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the video lightning protection circuit of web camera of the present utility model.
Fig. 2 is the circuit diagram of lightning-protection module in the video lightning protection circuit of web camera of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Consult shown in Fig. 1, the utility model provides a kind of video lightning protection circuit of web camera, comprise multiple signal circuits, on each signal circuit, be all provided with successively access K switch, the first inductance L 1, the first lightning-protection module F1, the second inductance L 2, the second lightning-protection module F2, capacitor C and controllable silicon G, each signal circuit is all by the first lightning-protection module F1 and the second lightning-protection module F2 ground connection, each signal circuit is also all connected with a holding wire M with controllable silicon G by capacitor C, and this holding wire M is also connected with the first lightning-protection module F1 and the second lightning-protection module F2, described the first lightning-protection module F1 and the second lightning-protection module F2 include insulation crust 1, be located at the extraneous socket 3 at insulation crust 1 two ends, and be installed on the lightning protection circuit 4 in insulation crust 1.
Capacitor C, two inductance (L1, L2), controllable silicon G and two lightning-protection modules (F1, F2) in the utility model have formed a circuit that spike absorbs, blocks, when in thunderstorm weather, the instantaneous surge that indirect lightning strike forms can absorb by electric capacity, inductance and controllable silicon.
In the utility model, the first and second lightning-protection modules (F1, F2) are all designed to have the modular construction of insulation crust simultaneously, do not need the plug connector of welding with extraneous socket 4, when the first and second lightning-protection modules (F1, F2) breakdown or damage time, can make to change easily.
Consult shown in Fig. 2, lightning protection circuit 4 described in the utility model comprises resistance R, the first gas discharge tube GDT1, the second gas discharge tube GDT2 and bridge rectifier 2, the first described gas discharge tube GDT1 is connected to the input of lightning protection circuit, described bridge rectifier 2 is connected to the output of lightning protection circuit, described resistance R is connected between the first gas discharge tube GDT1 and bridge rectifier 2, and the first described gas discharge tube GDT1 is also through the second gas discharge tube GDT2 ground connection, wherein two gas discharge tubes have certain puncture voltage, can be used for discharging larger induced current.
Above-described embodiment is preferably execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection range of the present utility model.
Claims (2)
1. the video lightning protection circuit of a web camera, it is characterized in that: comprise multiple signal circuits, on each signal circuit, be all provided with successively access switch (K), the first inductance (L1), the first lightning-protection module (F1), the second inductance (L2), the second lightning-protection module (F2), electric capacity (C) and controllable silicon (G), each signal circuit is all by the first lightning-protection module (F1) and the second lightning-protection module (F2) ground connection, each signal circuit is also all connected with a holding wire (M) with controllable silicon (G) by electric capacity (C), and this holding wire (M) is also connected with the first lightning-protection module (F1) and the second lightning-protection module (F2), described the first lightning-protection module (F1) and the second lightning-protection module (F2) include insulation crust (1), be located at the extraneous socket (3) at insulation crust (1) two ends, and be installed on the lightning protection circuit (4) in insulation crust (1).
2. the video lightning protection circuit of web camera according to claim 1, it is characterized in that: described lightning protection circuit (4) comprises resistance (R), the first gas discharge tube (GDT1), the second gas discharge tube (GDT2) and bridge rectifier (2), described the first gas discharge tube (GDT1) is connected to the input of lightning protection circuit, described bridge rectifier (2) is connected to the output of lightning protection circuit, described resistance (R) is connected between the first gas discharge tube (GDT1) and bridge rectifier (2), and described the first gas discharge tube (GDT1) is also through the second gas discharge tube (GDT2) ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849920.1U CN203645318U (en) | 2013-12-22 | 2013-12-22 | Video lightning protection circuit of network camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849920.1U CN203645318U (en) | 2013-12-22 | 2013-12-22 | Video lightning protection circuit of network camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645318U true CN203645318U (en) | 2014-06-11 |
Family
ID=50876539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849920.1U Expired - Fee Related CN203645318U (en) | 2013-12-22 | 2013-12-22 | Video lightning protection circuit of network camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203645318U (en) |
-
2013
- 2013-12-22 CN CN201320849920.1U patent/CN203645318U/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 | ||
| CP03 | Change of name, title or address |
Address after: 610000 No. 402, 4th floor, No. 229 Jingye Road, Qingyang District, Chengdu City, Sichuan Province Patentee after: Sichuan Maoye Intelligent Technology Co.,Ltd. Address before: 3 building, No. 2, West Avenue, Chengdu hi tech Zone, Sichuan, 611731 Patentee before: SICHUAN MAOYE BUILDING INTELLIGENT ENGINEERING Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20211222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |