CN203933004U - A kind of without leakage current the large discharge capacity surge protector without afterflow - Google Patents
A kind of without leakage current the large discharge capacity surge protector without afterflow Download PDFInfo
- Publication number
- CN203933004U CN203933004U CN201420385232.9U CN201420385232U CN203933004U CN 203933004 U CN203933004 U CN 203933004U CN 201420385232 U CN201420385232 U CN 201420385232U CN 203933004 U CN203933004 U CN 203933004U
- Authority
- CN
- China
- Prior art keywords
- protector
- discharge tube
- gas discharge
- inductance
- afterflow
- 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 - Fee Related
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a kind of without leakage current the large discharge capacity surge protector without afterflow, relate to electronic device shocking preventing technology field, it comprises at least one input wires terminal, at least one output wiring terminal, first order protector, the first inductance, the second protector and the second inductance, and described first order protector and the second protector carry out decoupling by the first inductance and the second inductance; Described first order protector and the second protector are parallel to live wire L between zero line N after adopting one or more varistors and gas discharge tube to connect, be parallel to live wire L to earth connection PE, zero line N to earth connection PE after adopting at least one or more varistor to connect with gas discharge tube.The utility model coordinates through varistor and gas discharge tube, gas discharge tube blocking-up varistor leakage current, the afterflow of piezo-resistance blocking-up gas discharge tube, realize surge protector without leakage current with without afterflow, make equipment obtain better protection.
Description
Technical field
The utility model relates to shocking preventing technology field, be specifically related to a kind of without leakage current the large discharge capacity surge protector without afterflow.
Background technology
Along with the progress of modern science and technology, the equipment of Highgrade integration is more and more, highly integratedly means that the spacing between internal wiring is more and more nearer, and its voltage endurance capability is more and more lower.The harm that surge brings is also more and more serious.Be necessary surge to limit, make surge voltage be reduced to the acceptable degree of equipment.Surge protector is exactly the device that surge is limited.
Surge protector (Surge protection Device) is indispensable a kind of device in electronic equipment lightning protection, and used is called " lightning arrester " or " overvoltage protection device " English and is abbreviated as SPD.The effect of surge protector is that the instantaneous overvoltage of scurrying into power line, signal transmssion line is limited in the voltage range that equipment or system can bear, or powerful lightning current is let out to inflow place, protects protected equipment or system not to be hit and damages.The type of surge protector and structure are different by different purposes, but it at least should comprise a non-linear voltage limiting element.Basic components and parts for surge protector have: discharging gap, gas-discharge tube, piezo-resistance, twin zener dioder and choking-winding etc.Surge protector is divided into by operation principle: one, switching mode, and its operation principle is in the time there is no instantaneous overvoltage, to be rendered as high impedance, but once response thunder and lightning instantaneous overvoltage, its impedance just sports low value, allows lightning current to pass through.During as such device, device has: discharging gap, gas discharge tube, thyristor etc.Two, votage limit type, its operation principle is in the time there is no instantaneous overvoltage, to be that height obstructs, but constantly reduces with its impedance meeting of increase of surge current and voltage, its current-voltage characteristic is for strongly non-linear.Device as such device has: zinc oxide, piezo-resistance, twin zener dioder, avalanche diode etc.Three, bypass type or chokes type, bypass type: in parallel with protected equipment, lightening pulse is rendered as to Low ESR, and normal working frequency is rendered as to high impedance.Chokes type: with protected devices in series, lightening pulse is rendered as to high impedance, and normal operating frequency is rendered as to Low ESR.The general protective device using of present large discharge capacity power surge protector is discharging gap, piezo-resistance, discharge tube, transient diode and twin zener dioder etc.How many these devices in use all exist a little problems as piezo-resistance leakage current problem in use, the afterflow problem of gas discharge tube.
Utility model content
For above-mentioned prior art, the purpose of this utility model be how to provide a kind of without leakage current the large discharge capacity surge protector without afterflow, be intended to solve leakage current problem and afterflow problem in existing surge protector design.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of without leakage current the large discharge capacity surge protector without afterflow, it is characterized in that, comprise at least one input wires terminal, at least one output wiring terminal, first order protector, the first inductance, the second protector and the second inductance, described first order protector and the second protector carry out decoupling by the first inductance and the second inductance; Described first order protector and the second protector are parallel to live wire L between zero line N after adopting one or more varistors and gas discharge tube to connect, be parallel to live wire L to earth connection PE, zero line N to earth connection PE after adopting at least one or more varistor to connect with gas discharge tube.
In the utility model, described varistor is heat protection pressure sensitive resistor TMOV, and gas discharge tube is ceramic gas discharge tube GDT.
Operation principle of the present utility model is:
By heat protection pressure sensitive resistor and coordinating by ceramic gas discharge tube of ceramic gas discharge tube blocking heat protection pressure sensitive resistor leakage current, the afterflow of logical overtemperature protection piezo-resistance blocking-up ceramic gas discharge tube realizes large discharge capacity without leakage current, without the circuit design of the surge protector of afterflow.
Compared with prior art, the utlity model has following beneficial effect:
The utility model takes full advantage of the advantage of varistor and gas discharge tube; through coordinating of varistor and gas discharge tube; gas discharge tube blocking-up varistor leakage current; the afterflow of piezo-resistance blocking-up gas discharge tube; realized surge protector without leakage current with without afterflow; make equipment obtain better protection, reduced the impact that equipment is struck by lightning, thereby the work that equipment more can be stable for a long time.
Brief description of the drawings
Fig. 1 is normal power supplies surge protector schematic diagram;
The power surge protector schematic diagram that Fig. 2 provides for the utility model.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model will be further described.
A kind of without leakage current the large discharge capacity surge protector without afterflow, it is characterized in that, comprise at least one input wires terminal, at least one output wiring terminal, first order protector, the first inductance, the second protector and the second inductance, described first order protector and the second protector carry out decoupling by the first inductance and the second inductance; Described first order protector and the second protector are parallel to live wire L between zero line N after adopting one or more varistors and gas discharge tube to connect, be parallel to live wire L to earth connection PE, zero line N to earth connection PE after adopting at least one or more varistor to connect with gas discharge tube.
Embodiment
As shown in Figure 2; comprise an input wires terminal; an output wiring terminal; first order protector is parallel to live wire L between zero line N after first adopting a heat protection pressure sensitive resistor TMOV and ceramic gas discharge tube GDT to connect, then is parallel to live wire L to earth connection PE, zero line N to earth connection PE after adopting two heat protection pressure sensitive resistors to connect with ceramic gas discharge tube GDT respectively.Second level protector is parallel to live wire L between zero line N after first adopting a heat protection pressure sensitive resistor TMOV and ceramic gas discharge tube GDT to connect, then is parallel to live wire L to earth connection PE, zero line N to earth connection PE after adopting two heat protection pressure sensitive resistors to connect with ceramic gas discharge tube GDT respectively.The first order and second and protection between carry out decoupling by the first inductance L 1 and the second inductance L 2.
It should be noted that, above for embodiment be the preferred embodiment that the utility model is introduced, those skilled in the art on this basis, can design more embodiment completely, therefore do not repeat herein.General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article.
Claims (2)
- One kind without leakage current the large discharge capacity surge protector without afterflow, it is characterized in that, comprise at least one input wires terminal, at least one output wiring terminal, first order protector, the first inductance, the second protector and the second inductance, described first order protector and the second protector carry out decoupling by the first inductance and the second inductance; Described first order protector and the second protector are parallel to live wire L between zero line N after adopting one or more varistors and gas discharge tube to connect, be parallel to live wire L to earth connection PE, zero line N to earth connection PE after adopting at least one or more varistor to connect with gas discharge tube.
- According to claim 1 without leakage current the large discharge capacity surge protector without afterflow, it is characterized in that, described varistor is heat protection pressure sensitive resistor TMOV, gas discharge tube is ceramic gas discharge tube GDT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420385232.9U CN203933004U (en) | 2014-07-14 | 2014-07-14 | A kind of without leakage current the large discharge capacity surge protector without afterflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420385232.9U CN203933004U (en) | 2014-07-14 | 2014-07-14 | A kind of without leakage current the large discharge capacity surge protector without afterflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203933004U true CN203933004U (en) | 2014-11-05 |
Family
ID=51828759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420385232.9U Expired - Fee Related CN203933004U (en) | 2014-07-14 | 2014-07-14 | A kind of without leakage current the large discharge capacity surge protector without afterflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203933004U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186480A (en) * | 2015-10-10 | 2015-12-23 | 南京赛康交通安全科技股份有限公司 | Lightning protection circuit |
| CN105606943A (en) * | 2015-10-27 | 2016-05-25 | 上海斐讯数据通信技术有限公司 | Alarm device of cable broken line fault and method thereof |
| CN109217275A (en) * | 2018-08-22 | 2019-01-15 | 深圳市瑞隆源电子有限公司 | High voltage bearing anti-thunder surge suppression circuit, device and power supply adaptor |
-
2014
- 2014-07-14 CN CN201420385232.9U patent/CN203933004U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186480A (en) * | 2015-10-10 | 2015-12-23 | 南京赛康交通安全科技股份有限公司 | Lightning protection circuit |
| CN105606943A (en) * | 2015-10-27 | 2016-05-25 | 上海斐讯数据通信技术有限公司 | Alarm device of cable broken line fault and method thereof |
| CN109217275A (en) * | 2018-08-22 | 2019-01-15 | 深圳市瑞隆源电子有限公司 | High voltage bearing anti-thunder surge suppression circuit, device and power supply adaptor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4571656A (en) | Electrical circuit for protection against surge overvoltage of transients | |
| CN204089181U (en) | A kind of lightning surge protection circuit and LED drive power | |
| CN201854029U (en) | Direct current power supply surge protection circuit | |
| CN202549831U (en) | An electrostatic discharge protector and a system composed thereof | |
| EP3387723B1 (en) | Surge protection circuit and surge protection method | |
| CN105981241B (en) | The drive circuit of overvoltage protection with asymmetric component | |
| CN203933004U (en) | A kind of without leakage current the large discharge capacity surge protector without afterflow | |
| KR102130660B1 (en) | Emp protective device for power source using power semiconductor | |
| CN202797931U (en) | Power lightning arrester for overvoltage protection device | |
| KR100878685B1 (en) | Data/signal surge protector | |
| CN201541124U (en) | Circuit for protecting digital subscriber lines | |
| CN207753452U (en) | A kind of network electric power two-in-one lightning | |
| CN210041320U (en) | Surge protector for socket | |
| CN109193600A (en) | A kind of lower Line To Line lightning protection circuit of clamp voltage | |
| Howell | Comparing Circuit Protection Technologies for 48 V DC in High Surge Environments | |
| CN103001201A (en) | Method and device for suppressing high-energy surge | |
| CN214280940U (en) | Surge protection circuit structure of PSE chip | |
| CN202997553U (en) | Signal lightning protection device | |
| CN204333944U (en) | A kind of network ' s thunder device | |
| CN214708129U (en) | Single lamp controller with lightning surge protection function and street lamp | |
| CN202395437U (en) | TVS current peak protection circuit | |
| CN203932997U (en) | With the surge protection apparatus of sense light device unit | |
| CN201270414Y (en) | Network interface circuit | |
| CN209462013U (en) | A kind of 6KV surge protection circuit | |
| CN204376402U (en) | A kind of surge protector with under-voltage protection level |
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 |
Granted publication date: 20141105 Termination date: 20210714 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |