CN201178306Y - Surge protector for video, data and power supply - Google Patents
Surge protector for video, data and power supply Download PDFInfo
- Publication number
- CN201178306Y CN201178306Y CN 200820084330 CN200820084330U CN201178306Y CN 201178306 Y CN201178306 Y CN 201178306Y CN 200820084330 CN200820084330 CN 200820084330 CN 200820084330 U CN200820084330 U CN 200820084330U CN 201178306 Y CN201178306 Y CN 201178306Y
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- video
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- 230000001012 protector Effects 0.000 title claims abstract description 12
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000011787 zinc oxide Substances 0.000 claims abstract description 15
- 229960001296 zinc oxide Drugs 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 4
- 240000002853 Nelumbo nucifera Species 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/043—Protection of over-voltage protection device by short-circuiting
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a video, data and power surge protector, which comprises an audio and video signal protection part, a control data signal protection part and a weak current voltage protection part; the audio and video signal protection comprises first-level protection, second-level protection and third-level protection; the control data signal protection comprises a first-stage protection, a second-stage protection and a third-stage protection; and weak current voltage protection comprises first-stage protection, second-stage protection and third-stage protection. According to the scheme, the three-level protection mode can effectively reduce residual voltage; the novel TMOV with the temperature protection function and the good thermal coupling performance is adopted on the weak current voltage protection, so that the TMOV can be timely separated from a circuit when the work reaches a self combustion critical point, the zinc oxide piezoresistor is prevented from being ignited and exploded, and the normal state is recovered when the circuit is normal; effectively reduces the damage of residual voltage to the equipment circuit and prolongs the service life of the surge protection device.
Description
Technical field
The utility model relates to light current surge protector equipment in a kind of intellectualizing system, i.e. video, data, power surge protector are specifically designed to a kind of device of the anti-induction lightening overvoltage surge protection of line facility.
Background technology
Powerful transient magnetic field (induction overvoltage) the harm safety-protection system low pressure and the light-current system that in weak electricity system, form when preventing from thunderbolt to take place near the switching overvoltage that in transfer process, produces such as static discharge, electromagnetic radiation, electric controling switch and building or the installations and facilities, its consequence may make malfunctioning the burning of whole monitoring system operation, and causes the economic loss that is difficult to estimate.Therefore be necessary light-current system (mainly being PLC module, microelectronic device etc.) is carried out the anti-surge protection of lightning protection.
At signal section, because of signal voltage and electric current are very little, even line short can not cause very big physical damage to equipment and circuit yet; And at power unit, no matter be forceful electric power or light current, because exist very big electric current, as the phenomenon that is short-circuited, cause burning of equipment, circuit easily, even initiation fire.Generally online-the ground of the power protection of existing surge protector part, between line-line directly the cross-over connection piezo-resistance or between piezo-resistance Thermal Cutoffs of serial connection as the first order protection of input interface; Like this, flow through MOV at the formed very powerful pulse current of overvoltage and make its heating, when when the MOV heat is enough high, reaching the burning-point of insulating bag seal of MOV, and circuit does not have in time to cut off or because Thermal Cutoffs does not disconnect with the good thermal coupling of MOV and causes line short, equipment burnout so just may take place catch fire or explode.That is sold on the market in recent years all exists this type of problem basically to the part like product, fundamentally do not solve the phenomenon of MOV because of heating blast on fire, timely cut-out circuit when having in other words the inreal MOV of solution moment work spins off MOV from circuit.
Recently; like product adopts the second class protection pattern mostly; though the protection of merchandiser level is compared; very big improvement has been arranged on protective value; but the residual voltage of (as the Thunderstorm Weather of spring and autumn coastal area) its protection back output still is higher than the limiting voltage that protected equipment can bear far away after being subjected to many these continuous overvoltage surge, and therefore equipment burn.
The utility model content:
At the problems referred to above, the problem that the utility model quasi-solution is determined provides a kind of maximum that can guarantee that overvoltage surge is not higher than protected equipment and bears voltage; Effectively reduce video, data, the power surge protector of residual voltage to the destruction of circuitry.
For achieving the above object, the utility model has adopted following technical scheme: a kind of video, data, power surge protector, and it comprises by audio-video signal protection, control data signal protection and light current voltage protection three parts and forming; Described audio-video signal protection comprises first order protection, second level protection and third level protection, the described first order is by ceramic gas discharge tube D1, D2, resistance R 1, R2 are formed by connecting, the second level is by glass gas-discharge pipe D3, D4, resistance R 3, R4 are formed by connecting, the third level is by semiconductor discharge tube D5, TVS transition diode D6, and resistance R 5, R6 are formed by connecting; Described control data signal protection comprises first order protection, second level protection and third level protection, the described first order is by ceramic gas discharge tube D7, resistance R 7, R8 are formed by connecting, the second level is by glass gas-discharge pipe D8, D9, resistance R 9, R10 are formed by connecting, the third level is by TVS transition diode D10, D11, D12, and resistance R 11, R12 are formed by connecting; Described light current voltage protection comprises first order protection, second level protection and third level protection, and the described first order is formed by connecting by Zinc-oxide piezoresistor TMOV1, TMOV2, TMOV3; The second level is by Zinc-oxide piezoresistor TMOV4, TMOV5, TMOV6, and inductance L 1, L2 are formed by connecting; The third level is by Zinc-oxide piezoresistor TMOV7, TMOV8, TMOV9, and inductance L 3, L4 are formed by connecting.
Above-mentioned video, data, power surge protector, described control data signal protective earthing is connected with earth point PE current potential by ceramic gas discharge tube D13, Zinc-oxide piezoresistor TMOV10; Described audio-video signal, light current voltage protection directly are connected with PE ground concurrent current potential.
Adopted such scheme, this novel video, data, power surge protector, three-in-one combination surge protection device adopts the three-level protective pattern can reduce residual voltage more effectively; In the light current voltage protection, adopt novel; Zinc-oxide piezoresistor with TMOV band temperature protection of extraordinary thermal coupling performance; can guarantee that its work reaches self burning and in time spins off from circuit during critical point; prevent Zinc-oxide piezoresistor self blast on fire; when circuit just often, recover normal again.Each interface protection all is designed to the three-level protective pattern; First order protective circuit bleed off high voltage heavy current, second level protection with surge voltage and current clamp on lower position; Third level protective circuit is to carrying out the low pressure clamper by the residual voltage behind the first order and the second level, guarantees that the maximum that overvoltage surge is not higher than protected equipment bears voltage; Effectively reduce the destruction of residual voltage to circuitry.Series resistance or inductance between the first order and the second level, the second level and the third level move back lotus root and chokes to overvoltage surge.Therefore also prolonged the work useful life of surge protection device.
Description of drawings:
Fig. 1: the utility model structure block diagram
Fig. 2: the utility model V-audio-video signal protective circuit figure
Fig. 3: the utility model D-control data signal protective circuit figure
Fig. 4: the following light current voltage protection circuit of the utility model P-24V AC/DC figure
Fig. 5: the utility model signal ground and equipotential ground connecting circuit figure
Embodiment:
As schematically shown in Figure 1, entire circuit is made of audio-video signal, data controlling signal, light current voltage protection three parts, and described light current voltage protection can be the voltage protection of P-24VAC/DC light current.The input and output of the power supply pressure line terminal by 2 3P is connected on the circuit, and wherein 1P is public earth terminal output; The input and output of data controlling signal are connected on the circuit by the pressure line terminal of 2 2P; The input and output of audio-video signal are connected on the circuit by 2 BNC connectors.
As Fig. 2: the D1 of the ceramic gas discharge tube in the audio-video signal protective circuit, D2, resistance R 1, R2 protect as the first order; Glass gas-discharge pipe D3, D4, resistance R 3, R4 protect as the second level, semiconductor discharge tube D5, TVS transition diode D6, resistance R 5, R6 protect as the third level; Series resistance is used as moving back lotus root between the first order and the second level, the second level and the third level.
As Fig. 3: the D7 of the ceramic gas discharge tube in the data controlling signal protective circuit, resistance R 7, R8 protect as the first order; Glass gas-discharge pipe D8, D9, resistance R 9, R10 protect as the second level, TVS transition diode D10, D11, D12, resistance R 11, R12 protect as the third level; Series resistance is used as moving back lotus root between the first order and the second level, the second level and the third level.
As Fig. 4: Zinc-oxide piezoresistor TMOV1, TMOV2, the TMOV3 of the band temperature protection in the 24VAC/DC light current voltage protection circuit protect as the first order; Zinc-oxide piezoresistor TMOV4, TMOV5, the TMOV6 of band temperature protection, inductance L 1, L2 protect as the second level; Zinc-oxide piezoresistor TMOV7, TMOV8, the TMOV9 of band temperature protection, inductance L 3, L4 protect as the third level; The inductance of connecting between the first order and the second level, the second level and the third level is used as moving back the lotus root chokes.
As Fig. 5: the control data signal protective earthing of three-in-one combination surge protection device is connected with electrical grounding point PE by ceramic gas discharge tube, Zinc-oxide piezoresistor releases into ground; Audio-video signal, supply voltage protective earthing directly are connected with equipotential PE ground concurrent releases into ground; Can effectively prevent because of the bad interference of ground connection the data control signal.
Claims (2)
1, a kind of video, data, power surge protector, it comprises by audio-video signal protection, control data signal protection and light current voltage protection three parts and forming, it is characterized in that:
Described audio-video signal protection comprises first order protection, second level protection and third level protection, the described first order is by ceramic gas discharge tube D1, D2, resistance R 1, R2 are formed by connecting, the second level is by glass gas-discharge pipe D3, D4, resistance R 3, R4 are formed by connecting, the third level is by semiconductor discharge tube D5, TVS transition diode D6, and resistance R 5, R6 are formed by connecting;
Described control data signal protection comprises first order protection, second level protection and third level protection, the described first order is by ceramic gas discharge tube D7, resistance R 7, R8 are formed by connecting, the second level is by glass gas-discharge pipe D8, D9, resistance R 9, R10 are formed by connecting, the third level is by TVS transition diode D10, D11, D12, and resistance R 11, R12 are formed by connecting;
Described light current voltage protection comprises first order protection, second level protection and third level protection, and the described first order is formed by connecting by Zinc-oxide piezoresistor TMOV1, TMOV2, TMOV3; The second level is by Zinc-oxide piezoresistor TMOV4, TMOV5, TMOV6, and inductance L 1, L2 are formed by connecting; The third level is by Zinc-oxide piezoresistor TMOV7, TMOV8, TMOV9, and inductance L 3, L4 are formed by connecting.
2, video according to claim 1, data, power surge protector is characterized in that described control data signal protective earthing is connected with earth point PE current potential by ceramic gas discharge tube D13, Zinc-oxide piezoresistor TMOV10; Described audio-video signal, light current voltage protection directly are connected with PE ground concurrent current potential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820084330 CN201178306Y (en) | 2008-03-11 | 2008-03-11 | Surge protector for video, data and power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820084330 CN201178306Y (en) | 2008-03-11 | 2008-03-11 | Surge protector for video, data and power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201178306Y true CN201178306Y (en) | 2009-01-07 |
Family
ID=40218328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820084330 Expired - Fee Related CN201178306Y (en) | 2008-03-11 | 2008-03-11 | Surge protector for video, data and power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201178306Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976830A (en) * | 2010-11-18 | 2011-02-16 | 南京信息工程大学 | Surge protection device of high-definition network video camera |
| CN102170119A (en) * | 2010-10-20 | 2011-08-31 | 南京信息工程大学 | Combined surge protection device (SPD) with LC (inductance-capacitance) decoupling element |
| CN102231519A (en) * | 2011-07-08 | 2011-11-02 | 中山市新立防雷科技有限公司 | Tandem power supply surge protection device |
| CN101656417B (en) * | 2009-06-30 | 2011-12-07 | 中山市澳美电子科技有限公司 | Three-in-one composite equipotential arrester |
| WO2013189314A1 (en) * | 2012-06-28 | 2013-12-27 | 中兴通讯股份有限公司 | Protection circuit of communication interface |
| CN103595036A (en) * | 2013-11-25 | 2014-02-19 | 国家电网公司 | Three-in-one lightning protection device for security and protection |
| CN104242284A (en) * | 2014-09-04 | 2014-12-24 | 廖飞舟 | Equipotential lightning protection device |
| WO2015113659A1 (en) * | 2014-01-31 | 2015-08-06 | Epcos Ag | Circuit arrangement for overvoltage protection |
| CN108718081A (en) * | 2018-06-05 | 2018-10-30 | 天津铁路信号有限责任公司 | A kind of radar pedal lightning protection circuit |
| CN110679053A (en) * | 2017-04-11 | 2020-01-10 | 德恩塞两合公司 | Separating and switching device for overvoltage protection, in particular for DC systems |
| CN112952785A (en) * | 2021-01-27 | 2021-06-11 | 杭州爱科科技股份有限公司 | Surge protection circuit |
-
2008
- 2008-03-11 CN CN 200820084330 patent/CN201178306Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656417B (en) * | 2009-06-30 | 2011-12-07 | 中山市澳美电子科技有限公司 | Three-in-one composite equipotential arrester |
| CN102170119A (en) * | 2010-10-20 | 2011-08-31 | 南京信息工程大学 | Combined surge protection device (SPD) with LC (inductance-capacitance) decoupling element |
| CN101976830A (en) * | 2010-11-18 | 2011-02-16 | 南京信息工程大学 | Surge protection device of high-definition network video camera |
| CN102231519A (en) * | 2011-07-08 | 2011-11-02 | 中山市新立防雷科技有限公司 | Tandem power supply surge protection device |
| US9496705B2 (en) | 2012-06-28 | 2016-11-15 | Zte Corporation | Protection circuit of communication interface |
| WO2013189314A1 (en) * | 2012-06-28 | 2013-12-27 | 中兴通讯股份有限公司 | Protection circuit of communication interface |
| CN103595036A (en) * | 2013-11-25 | 2014-02-19 | 国家电网公司 | Three-in-one lightning protection device for security and protection |
| WO2015113659A1 (en) * | 2014-01-31 | 2015-08-06 | Epcos Ag | Circuit arrangement for overvoltage protection |
| CN104242284A (en) * | 2014-09-04 | 2014-12-24 | 廖飞舟 | Equipotential lightning protection device |
| CN110679053A (en) * | 2017-04-11 | 2020-01-10 | 德恩塞两合公司 | Separating and switching device for overvoltage protection, in particular for DC systems |
| US11159013B2 (en) | 2017-04-11 | 2021-10-26 | Dehn Se + Co Kg | Disconnection and switch-over device for overvoltage protection, particularly for DC systems |
| CN108718081A (en) * | 2018-06-05 | 2018-10-30 | 天津铁路信号有限责任公司 | A kind of radar pedal lightning protection circuit |
| CN108718081B (en) * | 2018-06-05 | 2020-08-25 | 天津铁路信号有限责任公司 | Radar footboard lightning protection circuit |
| CN112952785A (en) * | 2021-01-27 | 2021-06-11 | 杭州爱科科技股份有限公司 | Surge protection circuit |
| CN112952785B (en) * | 2021-01-27 | 2024-09-17 | 杭州爱科科技股份有限公司 | Surge protection circuit |
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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: SHANGYU YUHENG ELECTRONICS CO. LTD. Free format text: FORMER OWNER: GU JIANGSHAN Effective date: 20100623 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 312300 SHANGYU YUHENG ELECTRONICS CO., LTD., INNOVATION CENTER, NO.567, PEOPLE S ROAD CENTRAL, SHANGYU CITY, ZHEJIANG PROVINCE TO: 312300 2ND FLOOR, BUILDING 1, HIGH + NEW TECHNOLOGY INCUBATOR, NO.567, RENMIN MIDDLE ROAD, SHANGYU CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100623 Address after: Shangyu City, Zhejiang province people's road 312300 No. 567 high tech Incubator Building 1 floor 2 Patentee after: Shangyu City Yuheng Electronic Co., Ltd. Address before: Shangyu City, Zhejiang province people's road 312300 No. 567 high tech incubator Shangyu Yuheng Electronics Co. Ltd. Patentee before: Gu Jiangshan |
|
| ASS | Succession or assignment of patent right |
Owner name: SHAOXING AODUN ELECTRONIC CO., LTD. Free format text: FORMER OWNER: SHANGYU YUHENG ELECTRONIC CO., LTD. Effective date: 20121225 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121225 Address after: Shangyu City, Zhejiang province people's road 312300 No. 567 high tech Incubator Building 1 floor 2 Patentee after: Shaoxing Aodun Electronics Co., Ltd. Address before: Shangyu City, Zhejiang province people's road 312300 No. 567 high tech Incubator Building 1 floor 2 Patentee before: Shangyu City Yuheng Electronic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20140311 |