CN105405729B - Two-electrode gas is switched - Google Patents
Two-electrode gas is switched Download PDFInfo
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- CN105405729B CN105405729B CN201510748209.0A CN201510748209A CN105405729B CN 105405729 B CN105405729 B CN 105405729B CN 201510748209 A CN201510748209 A CN 201510748209A CN 105405729 B CN105405729 B CN 105405729B
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- 238000007514 turning Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 10
- 229910002804 graphite Inorganic materials 0.000 abstract description 10
- 239000010439 graphite Substances 0.000 abstract description 10
- 238000010891 electric arc Methods 0.000 abstract description 8
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- 239000007789 gas Substances 0.000 description 50
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000007599 discharging Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000002679 ablation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 239000007770 graphite material Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- -1 becomes CO Chemical compound 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
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- 239000011810 insulating material Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/40—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes
- H01J17/42—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes having one or more probe electrodes, e.g. for potential dividing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/10—Anodes
Abstract
The present invention relates to two-electrode gas switch.Two-electrode gas is switched, two electrodes including first electrode seat, second electrode seat and for forming electrode gap, first electrode seat is tubbiness, the electrode gap is located in the inner chamber of first electrode seat, the radial sidewalls of the first electrode seat are provided with the conduction connecting structure for being used for making first electrode seat be conductively connected with exterior object, on the axial direction of first electrode seat, the conduction connecting structure is located at the electrode gap close to the side of second electrode seat.Electric current by when, current direction by first electrode seat radial sidewalls is just opposite with by the current direction of electrode gap, the electromagnetic force produced by the electric current of first electrode seat radial sidewalls is on the electric arc that two electrode gaps discharge, hoop beam force can be produced to the electrical discharge arc of two electrode gaps, concentrate heat, electric arc and graphite particle, graphite particle is more oxidized to gas, reduce pollution of the graphite particle to insulating concrete cylinder, extend switch life.
Description
Technical field
The present invention relates to pulse technique, more particularly to two-electrode gas is switched.
Background technology
In super high power solid state laser system, mainly great Rong is provided by energy subsystem for laser optical driver
Amount, high-voltage pulse energy pump.Energy subsystem is made up of large number of energy module and control system, and energy module is main
Function uses high-voltage energy storage, is turned on by triggering high-voltage discharging switch, power output pulse energy pumping.Energy module voltage etc.
Level is general from more than ten kV to twenties kV, and the energy of single power pulse release is from tens kJ to several MJ, therefore in high pressure, big work(
In rate pulse energy module, high-voltage discharging switch plays vital effect.High-voltage discharging switch requires that through-current capability reaches
Hundreds of kA, charge transfer quantity is up to hundreds of coulombs.Under the working condition of such super large energy pulse, high-voltage discharging switch is necessary
With high pressure, through-current capability is strong, on state characteristic is stable, internal resistance is small the features such as.And the punch-through of high-pressure discharge switch
Sufficiently complex with discharge physicses process on switch electrode, with certain dispersiveness, the electrical characteristic of high-voltage discharging switch is straight
Connect the high energy pulse output characteristics for having influence on energy module.Therefore, electric property stabilization, long-life high-voltage great-current are developed
Discharge switch is of great significance for ultra-large type solid state laser tool, for existing domestic actual conditions, optional height
Press electric switch very few.
In existing super high power high intensity laser system, high-voltage discharging switch is mainly switched using two-electrode gas.It is existing
Two-electrode gas switch as in Application No. 200910022937.8, the B of Authorization Notice No. CN 101577396 Chinese patent
A kind of disclosed two-electrode spark gap gas switch, and the Authorization Notice No. of Application No. 201010128326.4 are CN
A kind of two-electrode gas spark switch disclosed in 101783480 B Chinese patent, including two electrode tip holders（Alternatively referred to as
Base）, the insulating concrete cylinder and the insulated tension pole for being fixedly connected with two electrode tip holders that are arranged between two electrode tip holders.Two electricity
Being equipped with electrode seat between the electrode that graphite material is made, electrode has electrode gap.During heavy-current discharge, point of discharge
Randomly generated in electrode surface, sometimes in electrode outer edge etc., the conditions at the arc can be caused a little or Partial ablation is non-
Chang Yanchong, influences electrode life, and the electrode of existing discharge switch can be because graphite occurs for TRANSIENT HIGH TEMPERATURE and electric charge transfer
Grain splashes, and aggravates electrode erosion, the ablation degree direct influence of electrode to the discharge time of high-voltage discharging switch is electrion
The life-span of switch.Simultaneously as graphite particle is splashed, high-pressure discharge switch insulation component such as insulating concrete cylinder can be aggravated
Pollution, reduces dielectric strength, reduces high-pressure discharge switch service life.
The content of the invention
It is an object of the invention to provide a kind of two-electrode gas switch, to solve existing two-electrode gas switch because electrode burns
The problem of service life is short caused by erosion and graphite particle are splashed.
Two-electrode gas of the present invention switchs the technical scheme used：Two-electrode gas is switched, including first electrode seat, the
Two electrode tip holders and two electrodes for forming electrode gap, the first electrode seat is tubbiness, and the electrode gap is located at first
In the inner chamber of electrode tip holder, described two electrode apparent surfaces are parallel and in central coaxial, the radial sidewalls and two of first electrode seat
Electrode centers are coaxial, and first electrode seat only passes through the flange being arranged in first electrode seat radial sidewalls and the conduction on flange
Post realizes and is conductively connected with exterior object that on the axial direction of first electrode seat, the flange is leaned on positioned at the electrode gap
The side of nearly second electrode seat.
One end of the conductive pole is fixed on flange, and the other end is axially facing away from second electrode along first electrode seat
The direction of seat extends and exceeds the bottom wall of first electrode seat.
The flange is provided with the mounting hole being threadedly coupled for the corresponding end of conductive pole, and the conductive pole is provided with convex shoulder,
The convex shoulder have be used for when screwing and mounting hole conductive seal face of the hole along compression fit.
Conductive pole is provided with convex shoulder beyond one end of first electrode seat bottom wall, and the convex shoulder, which has, to be used to compress with exterior object
The conductive seal face of cooperation.
The conductive pole is made of red copper material.
The conductive pole is provided with many, and each conductive pole is uniformly distributed along the circumference on flange.
First electrode seat is towards provided with turning edge, the flange is by the shape that turns edge at the opening of second electrode seat
Into.
Connected by insulated tension pole between first electrode seat and second electrode seat, it is described turn edge on dorsad conductive pole
End face is provided with tapped blind hole, and the corresponding end of the insulated tension pole is provided with the external screw thread being threadedly coupled with tapped blind hole.
First electrode seat is only conductively connected by the conductive pole on the flange and flange and exterior object.
The radial sidewalls of the first electrode seat are provided with spark plug mounting hole radially corresponding with electrode gap, described
Being provided with spark plug mounting hole is used for the pilot spark plug that trigger electrode discharges, the electrode and first electrode of the pilot spark plug
The inwall of the radial sidewalls of seat has interval.
The present invention uses above-mentioned technical proposal, and electrode gap is located in the inner chamber of first electrode seat, the first electrode seat
Radial sidewalls be provided with and be used to make the flange that is conductively connected with exterior object of first electrode seat, in the axial direction side of first electrode
Upwards, the flange be located at the electrode gap close to second electrode seat side, so, electric current by when, pass through first electricity
The current direction of electrode seat radial sidewalls is just with the current direction by electrode gap on the contrary, action principle according to electromagnetic force, leads to
The electromagnetic force of electric current generation of first electrode seat radial sidewalls is crossed on the electric arc that two electrode gaps discharge, can be to two
The electrical discharge arc of electrode gap produces hoop beam force, and the hoop beam force causes electric arc when gas switch is turned on by hoop beam in coaxial configuration
In in narrow-minded region, in the region, transient temperature is higher, can reach 2000 ~ 4000K, the meeting of graphite molecule and cavity
Oxidation reaction occurs for interior oxygen, becomes CO, CO2, can pass through waste cock cavity of taking a breath after electric discharge terminates, it is to avoid gas
Switch because the accumulative of residual conductive medium causes the pressure-resistant reduction of gas switch insulation, also cause electrode surface by hard arc ablation journey
Degree tends to be uniform, and then improves the service life of two-electrode gas discharge switch；The a small amount of graphite produced during simultaneously turning on
Molecule also can be by electromagnetic force hoop beam in the narrow region of coaxial metal structure centre, it is to avoid be splashed on insulating concrete cylinder inwall dirty
Insulating concrete cylinder is contaminated, influence of the electric arc of sputtering to insulating concrete cylinder is avoided with this, and then extend its life-span.
Brief description of the drawings
Fig. 1 is the stereogram of one embodiment of two-electrode gas switch；
Fig. 2 is the front sectional view of two-electrode gas switch in Fig. 1；
Fig. 3 is the stereogram of the base combination of two-electrode gas switch in Fig. 1；
Fig. 4 is the stereogram of the top cover combination of two-electrode gas switch in Fig. 1；
Fig. 5 is the stereogram of the copper post of two-electrode gas switch in Fig. 1；
Fig. 6 is that the power current of two-electrode gas switch in Fig. 1 flows to principle schematic.
Each reference is corresponding entitled in figure：10- top cover combinations, 11- first electrodes seat, 12- first electrodes, 13-
Turn edge, 14- tapped blind holes, 20- insulating concrete cylinders, 21- sealing rings, 30- base combinations, 31- second electrodes seat, 32- second electrodes,
40- insulated tension poles, 50- conductive poles, 51- convex shoulders, the symmetrical tangent planes of 60-, 70- auxiliary triggering spark plugs.
Embodiment
One embodiment of two-electrode gas switch of the present invention is a kind of two electrode gas of coaxial backflow as shown in Fig. 1 ~ Fig. 7
Body spark switch, mainly combines 5 by top cover combination 10, insulating concrete cylinder 20, base combination 30, insulated tension pole 40 and conductive pole 50
Divide and constitute.Top cover combination 10 includes first electrode seat 11 and first electrode 12, and base combination 30 includes second electrode seat 31 and the
Two electrodes 32.First electrode seat 11 is tubbiness, bottom wall and opening directed downwardly with radial sidewalls, upward, second electrode seat 31
The T-shaped generally turned upside down.
Base combination 30 and top cover combination 10 use 45# steel, it is ensured that structural strength, while improving the He of base combination 30
Anti- galvano-cautery ability of the upper flange plate connecting portion of top cover combination 10 in hundreds of kA strong power impulses electric currents.Certainly, in other realities
Apply in example, other high-hardness metal materials can also be selected as needed.In order to ensure electric property, base combination 30 and upper lid
Combination 10 can not use welding mode, employ the finishing of monoblock steel and be made.
The electrode that graphite material EDM-AF5 is made, stone are inlayed in base combination 30 and the electrode column at the center of top cover combination 10
Ink has good chemical stability at normal temperatures, not by any strong acid, the erosion of highly basic and organic solvent, stone under discharge scenario
Ink reacts with oxygen in air, generation carbon monoxide, carbon dioxide, can conveniently discharge.Two electrode apparent surfaces are parallel
And in central coaxial, it is ensured that gas switch is in discharge process, the substantially uniform electric discharge of electrode surface, is conducive to raising electrode to use
Life-span.Electrode surface is according to Electric Field Distribution situation, by curve form working process so that electrode surface ablation degree tends to be equal
It is even, in addition, electrode surface is according to applying working condition, it is necessary to ensure flatness and axially vertical degree during machining.Certainly, other
In embodiment, electrode can also use other high intensity commonly used in the art, high-density graphite material, improve electrode and use the longevity
Life.
Insulating concrete cylinder 20 uses the composite insulating material F881 of high intensity.F881 construction machines intensity is big, corrosion resistance
By force, beneficial to the life-span for improving gas switch.The processing of insulating concrete cylinder 20 must assure that certain concentricity, and wall thickness is consistent.Insulation
Two end faces of cylinder 20 will ensure smoothly, to prevent gas leakage after assembling.
Insulated tension pole 40 is strong using tensile capacity, the high material processing and manufacturing of dielectric strength, is used in the present embodiment
Pure epoxy insulating materials.The uniform ring flange connecting portion for being installed on base combination 30 and top cover combination 10 of ten insulated tension poles 40
Position.This structure design ensure that the stress equilibrium of discharge switch under high current working condition.
Top cover combination 10 is towards being evenly equipped with ten on the lower surface that 13 provided with turning edge 13, are turned edge at the opening of base combination 30
Tapped blind hole 14, the corresponding end of each insulated tension pole 40 is provided with the external screw thread being threadedly coupled with tapped blind hole 14.For ease of installing,
Symmetrical tangent plane 60 is machined with the outer peripheral face of insulated tension pole 40, for transmitting moment of torsion.The ring flange connecting portion of base combination 30
The perforation passed through for the lower end of insulated tension pole 40 is provided with, the lower end of insulated tension pole 40 is passed through after base combination 30, can pass through nut
It is fixed.
Turn edge 13 upper surface on be evenly distributed the screwed holes of ten blind hole forms, ten conductive poles 50 pass through respectively
Screwed hole, which is fixed on, to be turned edge on 13, and exterior object 13 is connected by ten conductive poles 50 with turning edge.Ten conductive poles 50 are using purple
Copper product is fabricated, and red copper material has certain pliability relative to high purity steel, in the assembling of both structural member high intensity
During, it is possible to increase the conjugation of two kinds of parts contact surfaces, reduce contact resistance.It is equal near two terminations of conductive pole 50
A convex shoulder 51 is designed with, structure platform is formed, the thickness and sectional area of structure platform are strong according to actual through-flow situation and machinery
Degree design, the convex shoulder 51 has the conductive seal face along compression fit, energy for the exterior object or screwed hole hole with corresponding end
Enough play a part of structure positioning and reduce contact resistance, and then improve the through-current capability of flash power current.In convex shoulder 51
Outer ledge be also machined with symmetrical tangent plane 60, be easy to conductive pole 50 install fastening.Ten conductive poles 50 are uniformly arranged in concentric circles
Cloth is arranged on the flange plate edge fixing hole of top cover combination 10, it is ensured that the strong power impulses electric current of the metallic cylinder of top cover combination 10
The uniformity of output, while simplifying the installation complexity of coaxial configuration, realizes the coaxial technique of backflow of two-electrode gas switch
Scheme.
Base combination 30, insulating concrete cylinder 20, top cover combination 10 according to sequential combination from bottom to up together.In insulation
Cylinder 20 installs sealing ring 21 additional with base combination 30, the connecting portion of top cover combination 10, prevents gas switch body gas leakage.Pass through
Ten insulated tension poles 40 in the outside of insulating concrete cylinder 20 are fastened and fixed base combination 30, top cover combination 10.Ten insulated tension poles 40
Be centrosymmetric distribution, the uniform force fixed beneficial to structure between base combination 30, insulating concrete cylinder 20, the three of top cover combination 10
And air-tightness.
In top cover combination 10, in metal cylinder side, wall counter electrode gap location is provided with spark plug mounting hole, and spark plug is installed
An auxiliary triggering spark plug 70 is mounted with hole.Two electrode two ends moment are added in gas switch triggered as normal voltage, it is auxiliary
Pilot spark plug 70 is helped to export ultraviolet light, gap high pressure gas of the ultraviolet light in two electrodes in the presence of high pressure fast pulse
On body so that the gases at high pressure of two electrode gaps carry out partial ionization.Synchronization, gas switch, which applies, has fast rise time special
Property main triggering high-voltage pulse, primary triggering pulse high voltage electric field effect under, the gases at high pressure of electrode gap are ionized completely, gas
Switch conduction.By auxiliary triggering spark plug 70, the reliability of gas switch triggering and the service life of gas switch are improved.
In the installation process of spark plug, it is ensured that the trigger electrode protrusion metal cylinder inner wall surface 1mm of spark plug distance.Which energy
Enough reliabilities for ensureing triggering, can improve the service life of sparking-plug electrode again.In installation process, it is ensured that interface it is airtight
Property.
Principle and act on as follows that two-electrode gas switch coaxially flows back：
1）When gas switch is turned on, highpowerpulse current direction is：Ring flange → base combination of base combination 30
The electrode tip holder of electrode → top cover combination 10 of electrode gap → top cover combination 10 between 30 electrode → two electrode → upper lid
Combine the ring flange → ten piece copper post of 10 cylindrical wall backflows → top cover combination 10 → highpowerpulse output；
2）Two electrode gaps are in the metal inner cavity of top cover combination 10, because conduction connecting structure is arranged on first electrode
In the radial sidewalls of seat 11, and set location is located at the downside of electrode gap, in gas switch turn on process, top cover combination
10 metal inner cavity wall current directions are opposite with the current direction of two electrode gaps.According to the action principle of electromagnetic force, upper lid group
The electromagnetic force of 10 metal inner cavity wall pulse currents generation is closed on the electric arc that two electrode gaps discharge, can be to two electrodes
The electrical discharge arc in gap produces hoop beam force, and the hoop beam force causes electric arc when gas switch is turned on by hoop beam in coaxial metal structure
In in narrow-minded region, in the region, transient temperature is higher, can reach 2000 ~ 4000K, the meeting of graphite molecule and cavity
Oxidation reaction occurs for interior oxygen, becomes CO, CO2, after electric discharge terminates, is taken a breath by high pressure pure air, can be residual
Gas and particle blow gas switch cavity, it is to avoid gas switch causes gas switch insulation resistance to because of the accumulative of residual conductive medium
Pressure drop is low；Meanwhile, compared to the two-electrode gas switch without coaxial configuration, the gas of the coaxial return-flow structure of the application in the prior art
During body switch conduction, pass through the electromagnetism hoop beam force that the Impulsive Current of outer metal barrel is inside so that electrical discharge arc is all each time
It is in the border circular areas centered on coaxial configuration axle center, to stablize relatively, the conditions at the arc cause electrode surface by hard arc
Ablation position is the border circular areas centered on coaxial configuration axle center, and electrode surface ablation degree tends to be uniform, and then improves two
The service life of electrode gas discharge switch；The a small amount of graphite molecule produced during simultaneously turning on also can be by electromagnetic force hoop
Beam is in the narrow region of coaxial metal structure centre, it is to avoid is splashed to pollution insulating concrete cylinder 20 on the inwall of insulating concrete cylinder 20, is kept away with this
Exempt from influence of the electric arc of sputtering to insulating concrete cylinder 20, and then extend its life-span.In addition, in highpowerpulse current work situation
Under, pass through the design that coaxially flows back, it is possible to increase two-electrode gas switch on/off electric dynamic balance and uniform, further lifting Large Copacity gas
The arrangement works stability of body switch, and then raising gas switch electrically makees stability.
In the above-described embodiments, conduction connecting structure is using turning edge on first electrode seat is arranged on, in other embodiment
In, conduction connecting structure can also replace with other forms, such as in electrode gap in the radial sidewalls of first electrode seat
Lower section sets flange, and conductive pole is set on flange；In addition, conductive pole can also replace with other forms, such as wire；Again
Person, conduction connecting structure can also be the structure being connected directly between in the radial sidewalls of first electrode seat, for example, pass through screw
Or conductive anchor ear is conductively connected in the radial sidewalls of first electrode seat, can now be not provided with flange.In its of the present invention
In his embodiment, in radial sidewalls and conduction connecting structure can also be set on bottom wall simultaneously on first electrode seat.
In the above-described embodiments, conductive pole is to be connected through a screw thread realization to fix, and in other embodiments, conductive pole also may be used
To use other modes and first electrode conductive and fixed, for example, weld or pass through interference fit connection.
Claims (9)
1. two-electrode gas is switched, including first electrode seat, second electrode seat and two electrodes for forming electrode gap, described
First electrode seat is tubbiness, and the electrode gap is located in the inner chamber of first electrode seat, it is characterised in that：Described two electrode phases
Parallel to surface and in central coaxial, the radial sidewalls and two electrode centers of first electrode seat are coaxial, and first electrode only passes through
The flange and conductive pole on flange being arranged in first electrode seat radial sidewalls realize and be conductively connected with exterior object, the
On the axial direction of one electrode tip holder, flange is located at the electrode gap close to the side of second electrode seat.
2. two-electrode gas switch according to claim 1, it is characterised in that：One end of conductive pole is fixed on flange,
Be axially facing bottom wall that direction away from second electrode extend and exceed first electrode seat of the other end along first electrode seat, institute
Exterior object is stated to be connected with conduction connecting structure by conductive pole.
3. two-electrode gas switch according to claim 2, it is characterised in that：The flange is provided with pair for conductive pole
The mounting hole of threaded connection should be held, the conductive pole is provided with convex shoulder, the convex shoulder, which has, to be used for when screwing and mounting hole
Conductive seal face of the hole along compression fit.
4. two-electrode gas switch according to claim 2, it is characterised in that：Conductive pole is beyond first electrode seat bottom wall
One end is provided with convex shoulder, and the convex shoulder, which has, is used for the conductive seal face with exterior object compression fit.
5. two-electrode gas switch according to claim 2, it is characterised in that：The conductive pole is made of red copper material.
6. two-electrode gas switch according to claim 2, it is characterised in that：The conductive pole is provided with many, each conduction
Post is uniformly distributed along the circumference on flange.
7. two-electrode gas switch according to claim 2, it is characterised in that：First electrode seat is towards second electrode
Provided with turning edge at the opening of seat, the flange is formed by described turn edge.
8. two-electrode gas switch according to claim 7, it is characterised in that：The first electrode seat and second electrode seat
Between connected by insulated tension pole, it is described turn edge on dorsad conductive pole end face be provided with tapped blind hole, the insulated tension pole
Corresponding end is provided with the external screw thread being threadedly coupled with tapped blind hole.
9. two-electrode gas switch according to claim 1 or 2, it is characterised in that：The radial side of the first electrode seat
Wall, which is provided with to be provided with spark plug mounting hole radially corresponding with electrode gap, the spark plug mounting hole, is used for trigger electrode
The pilot spark plug of electric discharge, the electrode and the inwall of the radial sidewalls of first electrode seat of the pilot spark plug have interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510748209.0A CN105405729B (en) | 2015-11-06 | 2015-11-06 | Two-electrode gas is switched |
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|---|---|---|---|
| CN201510748209.0A CN105405729B (en) | 2015-11-06 | 2015-11-06 | Two-electrode gas is switched |
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| Publication Number | Publication Date |
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| CN105405729A CN105405729A (en) | 2016-03-16 |
| CN105405729B true CN105405729B (en) | 2017-09-08 |
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| CN110913555B (en) * | 2019-12-06 | 2021-02-26 | 西安交通大学 | Plasma jet switch |
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| CN201450228U (en) * | 2009-06-12 | 2010-05-05 | 西安交通大学 | Two-electrode spark gap gas switch |
| CN101783480A (en) * | 2010-03-22 | 2010-07-21 | 华中科技大学 | Two-electrode gas spark switch |
| CN102904162A (en) * | 2012-10-22 | 2013-01-30 | 云南电力试验研究院（集团）有限公司电力研究院 | Multichannel gas spark switch based on ultraviolet preionization technology |
| CN103219652A (en) * | 2013-03-22 | 2013-07-24 | 华中科技大学 | Large-current closed inflatable spark interval |
| CN203983729U (en) * | 2014-07-24 | 2014-12-03 | 中国工程物理研究院流体物理研究所 | A kind of gas spark switch |
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2015
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|---|---|---|---|---|
| US5663544A (en) * | 1994-02-18 | 1997-09-02 | Abb Research Ltd. | Switching device having a vacuum circuit-breaker shunt connected with a gas-blast circuit breaker |
| CN201450228U (en) * | 2009-06-12 | 2010-05-05 | 西安交通大学 | Two-electrode spark gap gas switch |
| CN101783480A (en) * | 2010-03-22 | 2010-07-21 | 华中科技大学 | Two-electrode gas spark switch |
| CN102904162A (en) * | 2012-10-22 | 2013-01-30 | 云南电力试验研究院（集团）有限公司电力研究院 | Multichannel gas spark switch based on ultraviolet preionization technology |
| CN103219652A (en) * | 2013-03-22 | 2013-07-24 | 华中科技大学 | Large-current closed inflatable spark interval |
| CN203983729U (en) * | 2014-07-24 | 2014-12-03 | 中国工程物理研究院流体物理研究所 | A kind of gas spark switch |
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