CN102522737A - Multi-gap overvoltage protection device with ignition electrodes in vacuum environment - Google Patents
Multi-gap overvoltage protection device with ignition electrodes in vacuum environment Download PDFInfo
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- CN102522737A CN102522737A CN2011104014368A CN201110401436A CN102522737A CN 102522737 A CN102522737 A CN 102522737A CN 2011104014368 A CN2011104014368 A CN 2011104014368A CN 201110401436 A CN201110401436 A CN 201110401436A CN 102522737 A CN102522737 A CN 102522737A
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Abstract
The invention discloses a multi-gap overvoltage protection device with ignition electrodes in a vacuum environment, which comprises a plurality of pairs of discharge electrodes which are arranged in parallel inside an insulation sealed housing. Disc-shaped ignition electrodes are arranged between the bottommost pair of discharge electrodes, or columnar ignition electrodes are embedded in the bottommost pair of discharge electrodes; the plurality of pairs of discharge electrodes and the ignition electrodes are sealed in the insulation sealed housing through sealing end covers, respectively; and the pressure in the insulation sealing housing ranges from 10<-3>Pa to 10<-4>Pa. As the multi-gap overvoltage protection device with ignition electrodes disclosed by the invention is encapsulated in the vacuum environment, when overvoltage occurs, disruptive discharge is initiated by one of the ignition electrodes and the bottommost pair of discharge electrodes at first, and then disruptive discharge occurs between two parallel electrodes; and at last, disruption occurs between all the plurality of pairs of electrodes. Such a multi-stage mechanism with a triggering electrode is shorter in response time to an overvoltage protector, and has good consistency of discharge voltages.
Description
Technical field
The present invention relates to a kind of overvoltage protecting device, band causes many gaps overvoltage protection of electrode under particularly a kind of vacuum environment.
Background technology
Along with the develop rapidly of information-based industry, in the system because the harm that atmospheric over-voltage and switching overvoltage cause has caused that people pay attention to greatly.As the spark switch and the vacuum switch of the various electrode shapes of overvoltage protection element and device, existing report.The high-energy discharge pipe of wherein representational clearance type overvoltage protecting device and French CITEL for German phoenix contact limited company is the overvoltage protection that band causes electrode under surge protector and patent ZL 2,005 1 0043087.1 vacuum environments of core.In order to improve the voltage protection level of overvoltage protection device, German phoenix contact limited company and patent ZL 2,005 1 0043087.1 have adopted three electrode overvoltage protectors of active energy control; In order to improve the anti-power frequency continued flow ability of overvoltage protection device; The Germany electric OBO of Opel adopts the graphite laminated overvoltage protection gap of multilayer; This overvoltage protection device is based on the basic theory of creeping discharge; A plurality of gaps discharged in series taken into account the anti-afterflow ability of voltage protection level and power frequency, but creeping discharge forms the carbon trace easily and influences protective feature.The research work starting of the domestic overvoltage protecting device that is used for one-level thunder protection soon, big discharge capacity, higher protection level and consistency, the overvoltage protecting device research level that anti-power frequency continued flow ability is strong are lower.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art; The many gaps overvoltage protection that provides under a kind of vacuum environment band to cause electrode, this device have very good operation voltage consistency, higher overvoltage protection level, derive the ability of transient pulse electric current and the ability of stronger consistent power frequency supply subsequent current greatly.
For achieving the above object; The technical scheme that the present invention adopts is: comprise being arranged on many to sparking electrode that opposing parallel is arranged in the insulation sealing shell; Be provided with the column initiation electrode that is inlaid with in a discoid initiation electrode or the electrode in bottom pair of discharge electrodes through insulating part and sparking electrode isolation between the bottom pair of discharge electrodes; And many to sparking electrode and cause electrode and be sealed in the insulation sealing shell through upper and lower end cover, and the pressure in the insulation sealing shell is 10
-3～10
-4Pa.
Many numbers to sparking electrode of the present invention are 2-4; Many to being provided with radome around at least one pair of sparking electrode in the sparking electrode.
Because the present invention is the many gaps overvoltage protection that is encapsulated in band initiation electrode under the vacuum environment; When overvoltage takes place when; One of them electrode that causes electrode and bottom pair of discharge electrodes at first causes disruptive discharge; Disruptive discharge between two parallel poles then takes place, and finally makes many to all puncturing between the electrode.The multistage mechanism of this band trigger electrode has reduced the response time to overvoltage protection device, has the ability of the consistency of good discharge voltage, higher overvoltage protection level and strong inhibition power frequency continued flow.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Embodiment
Below in conjunction with accompanying drawing and embodiment structural principle of the present invention and operation principle are done further explain.
For the vacuum degree in the sealing shell 11 that guarantees to insulate, metal material wherein, the material of becoming attached to, electrode material all can not have gas to separate out.That insulation sealing shell (like glass or aluminium oxide ceramics) 11 requires is airtight, do not absorb water, mechanical strength is high, the performance of becoming attached to is good.
Many gaps overvoltage protection that band causes electrode 7 is operated under the vacuum environment; After initiation electrode 7 is initiated puncture with nethermost sparking electrode 1; Nethermost pair of discharge electrodes 1, at first puncture between 2, thereupon three pairs of sparking electrode discharge breakdowns and carry out the transition to arc discharge; Have the overvoltage protection that causes electrode 7, the breakdown process between its sparking electrode 1-2,3-4, the 5-6 is very fast, thereby the present invention has the consistency and the overvoltage response characteristic of higher overvoltage protection level and good overvoltage protection level.Owing to have three pairs of sparking electrodes 1-2,3-4, three discharging gaps of 5-6 are arranged promptly simultaneously; So whole multistage arc voltage when having the overvoltage protection conducting that causes electrode is far above patent ZL200510043087.1 single gap overvoltage protection device arc voltage, thereby make the overvoltage protection gap have the ability of stronger inhibition power frequency continued flow.
Because the present invention is by being encapsulated in the many gaps overvoltage protection device that causes electrode having under the vacuum environment, so this overvoltage protection element has good operation voltage consistency, higher protection level and derives the ability of transient pulse electric current greatly and the ability of strong inhibition power frequency subsequent current.
Claims (3)
1. be with the many gaps overvoltage protection that causes electrode under a vacuum environment; Comprise and be arranged on the many of the interior opposing parallel layout of insulation sealing shell (11) sparking electrode (1,2), (3,4), (5,6) ... It is characterized in that: be provided with the column initiation electrode (7) that is inlaid with in a discoid initiation electrode (7) or the electrode in bottom pair of discharge electrodes (1,2) through insulating part (8) and sparking electrode isolation between the bottom pair of discharge electrodes (1,2); And it is many to sparking electrode (1,2), (3,4), (5,6) ... Reach initiation electrode (7) and be sealed in the insulation sealing shell (11), and the pressure in the insulation sealing shell (4) is 10 through upper and lower end cover (10,9)
-3～10
-4Pa.
2. band causes many gaps overvoltage protection of electrode under the vacuum environment according to claim 1, and it is characterized in that: described many numbers to sparking electrode are 2-4.
3. band causes many gaps overvoltage protection of electrode under the vacuum environment according to claim 1, it is characterized in that: described many to being provided with radome (12) around at least one pair of sparking electrode in the sparking electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104014368A CN102522737A (en) | 2011-12-06 | 2011-12-06 | Multi-gap overvoltage protection device with ignition electrodes in vacuum environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104014368A CN102522737A (en) | 2011-12-06 | 2011-12-06 | Multi-gap overvoltage protection device with ignition electrodes in vacuum environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102522737A true CN102522737A (en) | 2012-06-27 |
Family
ID=46293561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104014368A Pending CN102522737A (en) | 2011-12-06 | 2011-12-06 | Multi-gap overvoltage protection device with ignition electrodes in vacuum environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102522737A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919661A (en) * | 2017-12-28 | 2018-04-17 | 浙江多格电气有限公司 | A kind of modular Surge Protector |
| CN109038221A (en) * | 2018-07-30 | 2018-12-18 | 华格电子（昆山）有限公司 | There is the active overvoltage protection gap of plug function under gaseous environment |
| CN109038222A (en) * | 2018-07-30 | 2018-12-18 | 华格电子（昆山）有限公司 | There is the active overvoltage protection gap of plug function under vacuum environment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4267484A (en) * | 1979-08-28 | 1981-05-12 | The United States Of America As Represented By The Secretary Of The Air Force | Parallel multi-electrode spark gap switch |
| CN1697107A (en) * | 2005-04-29 | 2005-11-16 | 西安交通大学 | Controllable discharge switch of high-energy impulse in three electrodes under vacuum environment |
| CN1738135A (en) * | 2005-08-11 | 2006-02-22 | 西安交通大学 | Overvoltage protection device with initiation electrode under vacuum environment |
| CN101090197A (en) * | 2007-04-29 | 2007-12-19 | 四川中光防雷科技有限责任公司 | High efficient laminated graphic discharge gap device |
| CN201478825U (en) * | 2009-06-10 | 2010-05-19 | 东莞市新铂铼电子有限公司 | Power supply over voltage protection module for multi-gap metal gas discharge tube |
-
2011
- 2011-12-06 CN CN2011104014368A patent/CN102522737A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4267484A (en) * | 1979-08-28 | 1981-05-12 | The United States Of America As Represented By The Secretary Of The Air Force | Parallel multi-electrode spark gap switch |
| CN1697107A (en) * | 2005-04-29 | 2005-11-16 | 西安交通大学 | Controllable discharge switch of high-energy impulse in three electrodes under vacuum environment |
| CN1738135A (en) * | 2005-08-11 | 2006-02-22 | 西安交通大学 | Overvoltage protection device with initiation electrode under vacuum environment |
| CN101090197A (en) * | 2007-04-29 | 2007-12-19 | 四川中光防雷科技有限责任公司 | High efficient laminated graphic discharge gap device |
| CN201478825U (en) * | 2009-06-10 | 2010-05-19 | 东莞市新铂铼电子有限公司 | Power supply over voltage protection module for multi-gap metal gas discharge tube |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919661A (en) * | 2017-12-28 | 2018-04-17 | 浙江多格电气有限公司 | A kind of modular Surge Protector |
| CN109038221A (en) * | 2018-07-30 | 2018-12-18 | 华格电子（昆山）有限公司 | There is the active overvoltage protection gap of plug function under gaseous environment |
| CN109038222A (en) * | 2018-07-30 | 2018-12-18 | 华格电子（昆山）有限公司 | There is the active overvoltage protection gap of plug function under vacuum environment |
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Application publication date: 20120627 |