CN2938632Y - Anti-thunderstrike camera - Google Patents
Anti-thunderstrike camera Download PDFInfo
- Publication number
- CN2938632Y CN2938632Y CN 200620123289 CN200620123289U CN2938632Y CN 2938632 Y CN2938632 Y CN 2938632Y CN 200620123289 CN200620123289 CN 200620123289 CN 200620123289 U CN200620123289 U CN 200620123289U CN 2938632 Y CN2938632 Y CN 2938632Y
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- CN
- China
- Prior art keywords
- video camera
- lightning
- transient state
- lightning protection
- suppressing diode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Emergency Protection Circuit Devices (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
Whenever lightning occurs before a thunderstorm, the intensity of the magnetic field rises quickly and the great energy generated will generate very high voltages. When the monitoring line sends this over-voltage to the video camera, the components in the circuit board of the video camera often break down, which is the main hazard of outdoor protection and causes inestimable direct or indirect losses around the world. The lightning-proof video camera of the utility model protects the signal and power supply of the video camera simultaneously and discharges the inductive thunder generated by the natural electric field in the monitoring line to the ground in several nanoseconds, protecting the video camera from lightning and other surge over-voltages. Meanwhile, the latest lightning protection theory is applied, solving the problem of interference to the video image of numerous monitoring and lightning protection products worldwide in the practical working environment.
Description
Technical field
The utility model belongs to a kind of lightning protection video camera, is mainly used in the destruction that protection video camera user in use exempts from thunder and lightning, particularly the lightning protection video camera of the lightning protection of vision signal and power supply lightning protection.
Background technology
When thunderstorm arriving lightning takes place, magnetic field intensity can increase progressively rapidly, the huge energy that is produced (every meter reaches several kilovolts) is passed magnetic field, produce a very high voltage, monitoring circuit is carried this overvoltage toward video camera, thereby puncture the components and parts in the video camera wiring board, the main harm of outdoor security protection that Here it is, annual both at home and abroad therefore the direct or indirect economic loss that causes of institute be difficult to estimate.
Also not having incorporate lightning protection video camera on the market at present, if people will solve the lightning protection of this equipment, can only be that single lightning arrester is installed on camera signal radio frequency cable line, at the power unit of video camera power arrester is installed.Such protection causes the lightning arrester volume excessive, is again partial installation.And lightning protection video camera of the present utility model is that the signal and the power supply of video camera are protected simultaneously, and organically lightning arrester is combined in one.Be specially adapted to the occasion of wanting cube little.
Summary of the invention
The utility model belongs to a kind of lightning protection video camera, is mainly used in the destruction that protection video camera user in use exempts from thunder and lightning, particularly the lightning protection video camera of vision signal lightning protection and power supply lightning protection.
Concrete technical scheme is: power circuit and video signal transmission wire road are installed in the casing of video camera, be equiped with the transient state suppressing diode between two holding wires in video signal transmission wire road, two holding wires in video signal transmission wire road are connected with ground wire with metal oxide piezo-resistance MOV by the transient state suppressing diode respectively.
Also can install the transient state suppressing diode between its power circuit both positive and negative polarity, positive and negative polar curve is connected with ground wire with metal oxide piezo-resistance MOV by the transient state suppressing diode respectively.
The usefulness of technique scheme is: by said structure and connected mode, the earth of the induction thunder that natural electric field produces monitoring circuit being released in the time of nanosecond, thus make video camera avoid being struck by lightning and the infringement of other overvoltage surge.Properly settled the interference problem that the monitoring lightning-protected product produces simultaneously to video image in actual working environment.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further
Fig. 1. be system block diagram of the present utility model;
Fig. 2. be circuit diagram of the present utility model;
Embodiment: as Fig. 1, Fig. 2, shown in, 1 is that video lightning-protection module, 2 is that power lightning protection module, 3 is that metal oxide piezo-resistance MOV, 4 is that transient state suppressing diode, 5 is that metal oxide piezo-resistance MOV, 6 is the transient state suppressing diode, 7 is the transient state suppressing diode, 8 is the transient state suppressing diode, and 9 is the transient state suppressing diode.
Video lightning-protection module 1 is installed in the casing of video camera, power lightning protection module 2, be equiped with transient state suppressing diode 9 between two holding wires in video signal transmission wire road, two holding wires in video signal transmission wire road are connected with ground wire with metal oxide piezo-resistance MOV3 by transient state suppressing diode 4 respectively.This ground wire well is connected with the earth.
Simultaneously also can be equiped with transient state suppressing diode 7 between its power circuit both positive and negative polarity, positive and negative polar curve is connected with ground wire with metal oxide piezo-resistance MOV 5 by transient state suppressing diode 8 respectively.This ground wire well is connected with the earth.
By said structure and connected mode, the earth of the induction thunder that natural electric field produces monitoring circuit being released in the time of nanosecond, thus make video camera avoid being struck by lightning and the infringement of other overvoltage surge.Properly settled the interference problem that the monitoring lightning-protected product produces simultaneously to video image in actual working environment.
Main field of using has:
● the lightning protection video camera can be applied in all outdoor public safety fields that the lightning protection demand is arranged.
● the outdoor safety-protection system that river, river, lake, harbour mouth and the monitoring of hydrology water conservancy etc. are struck by lightning easily.
● the outdoor supervisory control system of sub-district, villa.
● traffic systems such as airport, highway comprise the monitored video camera system in the expressway tol lcollection booth.
● the outdoor pick-up equipment of systems such as finance.
Claims (2)
1. lightning protection video camera, power circuit and video signal transmission wire road are installed in the casing of video camera, it is characterized in that: be equiped with the transient state suppressing diode between two holding wires in video signal transmission wire road, two holding wires in video signal transmission wire road are connected with ground wire with metal oxide piezo-resistance MOV by the transient state suppressing diode respectively.
2. lightning protection video camera according to claim 1 is characterized in that: be equiped with the transient state suppressing diode between its power circuit both positive and negative polarity, positive and negative polar curve is connected with ground wire with metal oxide piezo-resistance MOV by the transient state suppressing diode respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123289 CN2938632Y (en) | 2006-08-03 | 2006-08-03 | Anti-thunderstrike camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123289 CN2938632Y (en) | 2006-08-03 | 2006-08-03 | Anti-thunderstrike camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2938632Y true CN2938632Y (en) | 2007-08-22 |
Family
ID=38362661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620123289 Expired - Lifetime CN2938632Y (en) | 2006-08-03 | 2006-08-03 | Anti-thunderstrike camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2938632Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877473A (en) * | 2010-05-14 | 2010-11-03 | 上海科晗实业有限公司 | Protection circuit in surge protector used for high-definition camera |
| CN102263407A (en) * | 2010-05-31 | 2011-11-30 | 鸿富锦精密工业（深圳）有限公司 | High voltage protector |
-
2006
- 2006-08-03 CN CN 200620123289 patent/CN2938632Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877473A (en) * | 2010-05-14 | 2010-11-03 | 上海科晗实业有限公司 | Protection circuit in surge protector used for high-definition camera |
| CN101877473B (en) * | 2010-05-14 | 2012-11-14 | 上海科晗实业有限公司 | Protection circuit in surge protector used for high-definition camera |
| CN102263407A (en) * | 2010-05-31 | 2011-11-30 | 鸿富锦精密工业（深圳）有限公司 | High voltage protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xiamen ROPEOK Science and Technology Co., Ltd. Assignor: Chen Yanxing Contract fulfillment period: 2008.10.1 to 2014.10.1 Contract record no.: 2008350000170 Denomination of utility model: Anti-thunderstrike camera Granted publication date: 20070822 License type: Exclusive license Record date: 20081118 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.1 TO 2014.10.1; CHANGE OF CONTRACT Name of requester: XIAMEN CITY LUOPUTE TECHNOLOGY CO., LTD. Effective date: 20081118 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Anti-thunderstrike camera Effective date of registration: 20100926 Granted publication date: 20070822 Pledgee: Bank of China, Limited by Share Ltd, Xiamen branch Pledgor: Chen Yanxing Registration number: 2010990000904 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070822 |
|
| EXPY | Termination of patent right or utility model |