CN207475522U - A kind of laser triggering multi-stage vacuum switch - Google Patents
A kind of laser triggering multi-stage vacuum switch Download PDFInfo
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- CN207475522U CN207475522U CN201721638537.6U CN201721638537U CN207475522U CN 207475522 U CN207475522 U CN 207475522U CN 201721638537 U CN201721638537 U CN 201721638537U CN 207475522 U CN207475522 U CN 207475522U
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Abstract
The utility model belongs to high-power pulse power switch technical field, and in particular to a kind of laser triggering multi-stage vacuum switch.A kind of laser triggering multi-stage vacuum switch, including laser-triggered vacuum gap, multistage self breakdown vacuum gap and triggering system；Multistage self breakdown vacuum gap is fixed on the upper end in laser-triggered vacuum gap by fastening connection piece, and grading ring is set in outside insulation crust；For the utility model using laser-triggered vacuum gap and multistage self breakdown vacuum gap serial connection technology, the two, which cooperates, realizes that laser triggering multi-stage vacuum switchs the application in high pressure, Gao Zhongying, highpowerpulse power system；Bombard triggering target simultaneously using multi-path laser, increase laser to the active area of target, generate more initial plasmas, the conduction property of further improving laser Triggered Vacuum Switch, it is switched using laser triggering multi-stage vacuum, avoids the complicated technology and great number cost needed for long term maintenance.
Description
Technical field
The utility model belongs to high-power pulse power switch technical field, and in particular to a kind of laser triggering is multistage
Vacuum switch.
Background technology
With China is high-power, high repetition pulse power technology research be constantly progressive and pulse power system capacity not
It is disconnected to increase, the crucial work such as pulse power system cut-offs the conduction delay, discharge capacity, high frequency of its switching device, service life
Requirements at the higher level are proposed as characteristic.Current widely used pulse power switch device mainly has gas trigger switch and true
Empty two kinds of trigger switch；According to switch triggering mode difference, and electric pulse triggering and laser triggering two types can be divided into.Its
In, electric pulse trigger switch is in main electrode gap setting trigger electrode, and initial plasma is generated using high pressure pulse discharge
Gap is connected.Electric pulse trigger switch maintains the premise of good trigger characteristic to be to maintain relatively high under-voltage ratio and provides one
Determine trigger energy, this proposes high requirement to its working environment and triggering system.Electric arc pair after the conducting of electric pulse trigger switch
Trigger electrode and trigger electrode coating material ablation are more serious, influence the conduction property and service life of electric pulse trigger switch.Swash
Light trigger switch, by triggering system and main electrode gap electrical isolation, is banged using laser as trigger source using High Power Laser Pulses
It hits target electrode and generates initial plasma conducting main gap.Compared to electric pulse triggering mode, laser triggered switch has conducting
Be delayed the advantages such as short, triggering precision is high, control is convenient, repeatable triggering, while avoids arc erosion to trigger electrode working life
Influence.Therefore in high-power, high repetition pulse power system mostly by the way of laser triggering.
Laser triggering gas switch is mostly using insulation of the good electronegative gases of insulation performances such as SF6 gases as switch
And arc-extinguishing medium, conducting delay is up to few tens of nano-seconds.To meet high pressure, highpowerpulse power system to high performance switch device
The demand of part has scholar to propose laser triggering gas gap and multistage over-pressed self breakdown gas gap being composed in series MV grades of laser
The gas switch of multistage multi-channel is triggered, using the mixed gas of SF6/N2 as switch insulation and arc-extinguishing medium, instantaneous work(is connected
Rate is or so 10 nanoseconds up to T watts of grade, conducting delay.But by SF6 gases, itself electrical characteristic is limited, laser triggering gas switch
Repetition working characteristics it is poor；And electric arc electric discharge can be such that SF6 gases in switch largely decompose, and influence multistage triggering gas switch
Job stability needs to regularly replace gas to maintain switch working performance, and later maintenance cost is higher.
Laser triggered vacuum switch is insulated between main electrode using vacuum and arc-extinguishing medium, has that through-current capability is strong, reliability
It is high, repetition characteristic is good, the advantages such as non-maintaining, can obtain the on state characteristic better than laser triggering gas switch under the same terms.Mesh
It is preceding all to concentrate on laser triggering gas switch aspect substantially for the research of high power laser trigger switch device both at home and abroad, it is high
The research of pressure, high power laser Triggered Vacuum Switch has not been reported.This is because the resistance to voltage levels of vacuum gap and its clearance gap
Sow discord the applied voltage grade for there are non-linear growth relationship, limiting laser triggered vacuum switch.Broken based on multi-break vacuum
Road device technology and laser triggering multistage gas switch technology correlative study, if laser-triggered vacuum gap and multistage overvoltage are hit certainly
It wears vacuum gap and is composed in series laser triggering multi-stage vacuum switch；Rational clearance distance, design each section electrode structure are set
And laser optical path, to meet the needs of pulse power system is to switching voltage grade and conduction property；Make full use of laser triggering
The conducting advantage of vacuum switch and the arc extinguishing of vacuum short air gap and insulation feature, are substantially improved the repetition connecting-disconnecting function of switch, together
Shi Youxiao reduces later maintenance cost.
Utility model content
The technical problem to be solved by the present invention is to provide one kind based on laser-triggered vacuum gap and self breakdown vacuum
The high pressure of gap series, high power laser triggering multi-stage vacuum switch；Laser triggering system is designed, it is equal to generate multichannel energy
Parallel laser, which is bombarded simultaneously in multiple target electrodes, triggers target, the on state characteristic of improving laser triggered vaccum gap, with multistage mistake
Pressure self breakdown vacuum gap matches, and laser triggering multi-stage vacuum switch is made to obtain more preferably conduction property；It is multistage by regulating and controlling
Self breakdown vacuum gap inner electrode utilizes the weight of the synergistic effect improving laser triggering multi-stage vacuum switch in magnetic field between gap
Frequency connecting-disconnecting function.
The technical solution of the utility model：
A kind of laser triggering multi-stage vacuum switch including laser-triggered vacuum gap, multistage self breakdown vacuum gap and touches
Hair system；
Multistage self breakdown vacuum gap is fixed on the upper end in laser-triggered vacuum gap, grading ring 6 by fastening connection piece 7
It is set in outside insulation crust 3；
The laser-triggered vacuum gap includes lower insulation crust 9, triggering upper end cover flange 8, triggered gap shielding case
19th, triggering bottom end cover flange 10, cathode conducting rod 15, the plate cathode contact 20 with multiple target electrodes, triggering target 22, band
The planar anode contact 21 of multiple light holes, the conductive anode rod 11 with multiple light holes, bellows 23,12 and of thang-kng eyeglass
Baffles 13；
The upper and lower ends opening of the lower insulation crust 9 is respectively by triggering upper end cover flange 8 and triggering bottom end cover flange
10 sealings；
The triggered gap shielding case 19 is fixed in lower insulation crust 9, for optimizing in laser-triggered vacuum gap
Electric field is distributed；The plate cathode contact 20 of the multiple target electrodes of the band and the planar anode contact 21 with multiple light holes
It is positioned opposite, in triggered gap shielding case 19；
Plate cathode contact 20 with multiple target electrodes is fixed on triggering upper end cover flange 8 by cathode conducting rod 15
On；Planar anode contact 21 with multiple light holes and the conductive anode rod 11 with multiple light holes are direct-connected, with multiple thang-kngs
The conductive anode rod 11 in hole is connected to triggering bottom end cover flange 10 through the sealing of bellows 23；Planar anode with multiple light holes is touched
22 position of triggering target one on 14 position of light hole on first 21 and the plate cathode contact 20 with multiple target electrodes is a pair of
It should；
The sealing of thang-kng eyeglass 12 is connected to 11 bottom of conductive anode rod with multiple light holes, 12 housing of thang-kng eyeglass
Baffles 13, baffles 13 are fixed on the conductive anode rod 11 with multiple light holes, outside triggering bottom end cover flange 10,
It is equipped with and 14 corresponding through-hole of light hole；
The multistage self breakdown vacuum gap includes upper insulation crust 3, self breakdown upper end cover flange 2, self breakdown gap
Shielding case 16, self breakdown bottom end cover flange 4, low voltage conductive bar 1, supporting insulator 18, annular self breakdown electrode 17 and high pressure are led
Electric pole 5；
The upper and lower ends of the upper insulation crust 3 are respectively by self breakdown upper end cover flange 2 and self breakdown bottom end cover flange 4
Sealing, multiple self breakdown gap shielding covers 16 are vertically fixed on inside insulation crust 3, are optimized in multistage self breakdown vacuum gap
Electric field is distributed；
The high-voltage conductive rod 5 passes through the sealing of self breakdown bottom end cover flange 4 to fix, the upper end and annular self breakdown electrode
17 equipotential links, lower end are connect with the upper end of cathode conducting rod 15；
The multiple annular self breakdown electrodes 17 and supporting insulator 18 of the series connection are fixed on multistage self breakdown gap shielding
Inside cover 16；
The supporting insulator 18 has cylindrical bump for top, and the column with full skirt of cylindrical grooves is arranged at bottom
Object, supporting insulator 18 and the high-voltage conductive rod 5 of bottommost are connected, cooperate between each supporting insulator 18, will be multiple
Annular 17 inner ring of self breakdown electrode is clipped in the middle respectively；
The central hollow circular diameter of the annular self breakdown electrode 17 is straight with 18 Upper cylindrical of supporting insulator protrusion
Diameter is equal, and electrode inner ring sheet thickness is less than outer shroud and connection in conjunction, and outer ring portion is main discharge electrode, and series gap is led
After logical, electric current is circulated by outer ring portion, changes outer ring portion structure and magnetic field in throughput time gap can be changed in slot type
Direction and intensity, 17 inner ring of first order annular self breakdown electrode is clipped between high-voltage conductive rod 5 and supporting insulator 18, with this side
Formula connects to form multistage over-pressed self breakdown vacuum gap；
Groove of the bottom surface of the low voltage conductive bar 1 with cooperation supporting insulator 18, the upper end are passed through on self breakdown
The sealing of end cap flange 2 is fixed, protrusion of the lower end groove through 18 top of afterbody annular self breakdown electrode 17 and supporting insulator
Connection；
The annular self breakdown electrode 17 of the series connection includes one or more knots in plate, vertical magnetic-type, horizontal magnetic-type
The intercombination of structure.
The triggering system includes trigger controller 24, laser 25, Transmission Fibers 26,4:1 light splitting eyeglass 27,3:1
It is divided eyeglass 28,2:1 light splitting eyeglass 36,1:It is 1 light splitting eyeglass 33, full-reverse lens A30, full-reverse lens B32, full-reverse lens C35, complete
Anti- eyeglass D29, focusing lens A31, focusing lens B34, focusing lens C37 and focusing lens D38；
The trigger controller 24 is responsible for receiving the action command of external system, and passes through Transmission Fibers 26 and control laser
Device 25 acts, and generates laser pulse；The laser pulse that laser 25 is sent out, which passes sequentially through, is fixed on the more of 25 output terminal of laser
A light splitting lens light-splitting, full-reverse lens reflection, focusing lens formed after focusing on upper and lower, left and right, in equal parallel of 5 road energy
Laser；
Laser pulse Jing Guo 80% transmitance 4:1 light splitting eyeglass 27 is divided, full-reverse lens B32 of the reflected light through lower section and
Focusing lens B34 forms lower road laser；Laser pulse penetrates 4:1 is divided 3 of the laser of eyeglass 27 through 75% transmitance:1 light splitting
Eyeglass 28 is divided, full-reverse lens C35 and focusing lens C37 of the reflected light through left side form left laser；Laser pulse penetrates 3:1
It is divided 2 of the laser of eyeglass 28 again through transmitance 66%:1 light splitting eyeglass 36 is divided, full-reverse lens D29 of the reflected light through right side and
Focusing lens D38 forms right wing laser；Laser pulse penetrates 2:1 is divided 1 of the laser of eyeglass 36 through transmitance 50%:1 light splitting
Eyeglass 33 is divided, and full-reverse lens A30 and focusing lens A31 of the reflected light through top form upper road laser；Through 1:1 light splitting eyeglass
33 laser forms Road laser by centre focus eyeglass；5 road parallel lasers pass through light hole 14 to focus on triggering target simultaneously
22 surface of material, generating a large amount of initial plasmas makes laser-triggered vacuum gap obtain shorter conducting delay.
The light splitting ratio of described light splitting eyeglass, quantity, position, the quantity of full-reverse lens, position and focusing lens
Quantity, position can be adjusted according to the quantity and position of target and light hole, with formed more beam energies it is equal it is parallel swash
Light.
The beneficial effects of the utility model：The utility model is using laser-triggered vacuum gap and multistage self breakdown vacuum space
Gap serial connection technology, the two, which cooperates, realizes laser triggering multi-stage vacuum switch in high pressure, Gao Zhongying, highpowerpulse power train
Application in system；Bombard triggering target simultaneously using multi-path laser, increase laser generates more initial the active area of target
Plasma, the conduction property of further improving laser Triggered Vacuum Switch, while weaken laser to a certain extent to triggering
The ablation effect of target, extends switch service life；By changing multistage self breakdown vacuum gap annular self breakdown electrode
Combination regulates and controls Distribution of Magnetic Field between gap, and laser triggering multi-stage vacuum switch is made to obtain stronger repetition connecting-disconnecting function；Using
Laser triggering multi-stage vacuum switchs, and avoids the complicated technology and great number cost needed for long term maintenance.
Description of the drawings
Fig. 1 is laser triggering multi-stage vacuum switch structure diagram.
Fig. 2 is laser triggering multi-stage vacuum switch internal structure diagram.
Fig. 3 is the conductive anode rod vertical view with multiple light holes.
Fig. 4 is horizontal magnetic-type annular self breakdown electrode schematic diagram.
Fig. 5 is the side view of laser triggering system.
Fig. 6 is the vertical view of laser triggering system.
In figure：1 low voltage conductive bar；2 self breakdown upper end cover flanges；Insulation crust on 3；4 self breakdown bottom end cover flanges；5 is high
Press conducting rod；6 grading rings；7 fastening connection pieces；8 triggering upper end cover flanges；9 times insulation crusts；10 triggering bottom end cover flanges；11
Conductive anode rod with multiple light holes；12 thang-kng eyeglasses；13 baffles；14 light holes；15 cathode conducting rods；Between 16 self breakdowns
Gap shielding case；17 annular self breakdown electrodes；18 supporting insulators；19 triggered gap shielding cases；20 tablets with multiple target electrodes
Type cathode contact；The 21 planar anode contacts with multiple light holes；22 triggering targets；23 bellowss；24 trigger controllers；25
Laser；26 Transmission Fibers；27 4:1 light splitting eyeglass；28 3:1 light splitting eyeglass；29 full-reverse lens D；30 full-reverse lens A；31 is poly-
Focus lens A；32 full-reverse lens B；33 1:1 light splitting eyeglass；34 focusing lens B；35 full-reverse lens C；36 2:1 light splitting eyeglass；37
Focusing lens C；38 focusing lens D.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with technical solution and attached drawing.
With reference to Fig. 1~Fig. 6, a kind of laser triggering multi-stage vacuum switch, including laser-triggered vacuum gap, multistage self breakdown
Vacuum gap and triggering system；
Multistage self breakdown vacuum gap is fixed on the upper end in laser-triggered vacuum gap, grading ring 6 by fastening connection piece 7
It is set in outside insulation crust 3；
The laser-triggered vacuum gap includes lower insulation crust 9, triggering upper end cover flange 8, triggered gap shielding case
19th, triggering bottom end cover flange 10, cathode conducting rod 15, the plate cathode contact 20 with multiple target electrodes, triggering target 22, band
The planar anode contact 21 of multiple light holes, the conductive anode rod 11 with multiple light holes, bellows 23,12 and of thang-kng eyeglass
Baffles 13；
The upper and lower ends opening of the lower insulation crust 9 is respectively by triggering upper end cover flange 8 and triggering bottom end cover flange
10 sealings；
The triggered gap shielding case 19 is fixed in lower insulation crust 9, for optimizing in laser-triggered vacuum gap
Electric field is distributed；The plate cathode contact 20 of the multiple target electrodes of the band and the planar anode contact 21 with multiple light holes
It is positioned opposite, in triggered gap shielding case 19；
Plate cathode contact 20 with multiple target electrodes is fixed on triggering upper end cover flange 8 by cathode conducting rod 15
On；Planar anode contact 21 with multiple light holes and the conductive anode rod 11 with multiple light holes are direct-connected, with multiple thang-kngs
The conductive anode rod 11 in hole is connected to triggering bottom end cover flange 10 through the sealing of bellows 23；Planar anode with multiple light holes is touched
22 position of triggering target one on 14 position of light hole on first 21 and the plate cathode contact 20 with multiple target electrodes is a pair of
It should；
The sealing of thang-kng eyeglass 12 is connected to 11 bottom of conductive anode rod with multiple light holes, 12 housing of thang-kng eyeglass
Baffles 13, baffles 13 are fixed on the conductive anode rod 11 with multiple light holes, outside triggering bottom end cover flange 10,
It is equipped with and 14 corresponding through-hole of light hole；
The multistage self breakdown vacuum gap includes upper insulation crust 3, self breakdown upper end cover flange 2, self breakdown gap
Shielding case 16, self breakdown bottom end cover flange 4, low voltage conductive bar 1, supporting insulator 18, annular self breakdown electrode 17 and high pressure are led
Electric pole 5；
The upper and lower ends of the upper insulation crust 3 are respectively by self breakdown upper end cover flange 2 and self breakdown bottom end cover flange 4
Sealing, multiple self breakdown gap shielding covers 16 are vertically fixed on inside insulation crust 3, are optimized in multistage self breakdown vacuum gap
Electric field is distributed；
The high-voltage conductive rod 5 passes through the sealing of self breakdown bottom end cover flange 4 to fix, the upper end and annular self breakdown electrode
17 equipotential links, lower end are connect with the upper end of cathode conducting rod 15；
The multiple annular self breakdown electrodes 17 and supporting insulator 18 of the series connection are fixed on multistage self breakdown gap shielding
Inside cover 16；
The supporting insulator 18 has cylindrical bump for top, and the column with full skirt of cylindrical grooves is arranged at bottom
Object, supporting insulator 18 and the high-voltage conductive rod 5 of bottommost are connected, cooperate between each supporting insulator 18, will be multiple
Annular 17 inner ring of self breakdown electrode is clipped in the middle respectively；
The central hollow circular diameter of the annular self breakdown electrode 17 is straight with 18 Upper cylindrical of supporting insulator protrusion
Diameter is equal, and electrode inner ring sheet thickness is less than outer shroud and connection in conjunction, and outer ring portion is main discharge electrode, and series gap is led
After logical, electric current is circulated by outer ring portion, changes outer ring portion structure and magnetic field in throughput time gap can be changed in slot type
Direction and intensity, 17 inner ring of first order annular self breakdown electrode is clipped between high-voltage conductive rod 5 and supporting insulator 18, with this side
Formula connects to form multistage over-pressed self breakdown vacuum gap；
Groove of the bottom surface of the low voltage conductive bar 1 with cooperation supporting insulator 18, the upper end are passed through on self breakdown
The sealing of end cap flange 2 is fixed, protrusion of the lower end groove through 18 top of afterbody annular self breakdown electrode 17 and supporting insulator
Connection；
The 17 outer ring portion structure of annular self breakdown electrode of the series connection is included in plate, vertical magnetic-type, horizontal magnetic-type
The intercombination of one or more structures.
The triggering system includes trigger controller 24, laser 25, Transmission Fibers 26,4:1 light splitting eyeglass 27,3:1
It is divided eyeglass 28,2:1 light splitting eyeglass 36,1:It is 1 light splitting eyeglass 33, full-reverse lens A30, full-reverse lens B32, full-reverse lens C35, complete
Anti- eyeglass D29, focusing lens A31, focusing lens B34, focusing lens C37 and focusing lens D38；
The trigger controller 24 is responsible for receiving the action command of external system, and passes through Transmission Fibers 26 and control laser
Device 25 acts, and generates laser pulse；The laser pulse that laser 25 is sent out, which passes sequentially through, is fixed on the more of 25 output terminal of laser
A light splitting lens light-splitting, full-reverse lens reflection, focusing lens formed after focusing on upper and lower, left and right, in equal parallel of 5 road energy
Laser；
Laser pulse Jing Guo 80% transmitance 4:1 light splitting eyeglass 27 is divided, full-reverse lens B32 of the reflected light through lower section and
Focusing lens B34 forms lower road laser；Through 4:1 is divided 3 of the laser of eyeglass 27 through 75% transmitance:1 light splitting eyeglass 28 divides
Light, reflected light full-reverse lens C35 and focusing lens C37 through left side form left laser；Through 3:The laser of 1 light splitting eyeglass 28
2 again through transmitance 66%:Eyeglass 36 is divided, full-reverse lens D29 and focusing lens D38 of the reflected light through right side are formed for 1 light splitting
Right wing laser；Through 2:1 is divided 1 of the laser of eyeglass 36 through transmitance 50%:1 light splitting eyeglass 33 is divided, and reflected light is through top
Full-reverse lens A30 and focusing lens A31 form road laser；Through 1:The laser of 1 light splitting eyeglass 33 passes through centre focus mirror
Piece forms Road laser；5 road parallel lasers pass through light hole 14 to focus on 22 surface of triggering target simultaneously, generate largely initial etc.
Gas ions make laser-triggered vacuum gap obtain shorter conducting delay.
The light splitting ratio of described light splitting eyeglass, quantity, position, the quantity of full-reverse lens, position and focusing lens
Quantity, position can be adjusted according to the quantity and position of target and light hole, with formed more beam energies it is equal it is parallel swash
Light.
When laser triggering multi-stage vacuum switch does not turn on, laser triggering multi-stage vacuum switch is placed in insulating oil, is utilized
Upper insulation crust 3 and lower insulation crust 9 and insulating oil keep exterior insulation, pass through the conductive anode rod 11 with multiple light holes 14
It keeps being electrically connected with low voltage conductive bar 1 and external system；Grading ring 6, self breakdown gap shielding cover 16, triggered gap shielding case
Under 19 effects, the voltage between multistage self breakdown gap is uniformly distributed, laser-triggered vacuum gap and multistage self breakdown vacuum gap
Between voltage reasonable be distributed, each gap keeps the high under-voltage ratio that works；By adjusting the multiple light holes of band being connected with bellows 23
Conductive anode rod 11 lengthwise position control triggered gap in vacuum contact spacing, can further adjust between laser-triggered vacuum
The under-voltage ratio of work of gap.
5 road laser are focused on by corresponding focusing lens, pass sequentially through thang-kng eyeglass 12 and the anode with multiple light holes
The 5 road laser channelings 14 that conducting rod 11 is formed with the planar anode contact 21 with multiple light holes, while bombard with multiple targets
5 triggering targets 22 on 20 surface of plate cathode contact of electrode, generate a large amount of initial plasmas, make laser-triggered vacuum
Gap obtains nanosecond conducting delay.
After triggered gap conducting, it is true that laser triggering multi-stage vacuum switch ends operating voltage is applied to rapidly multistage self breakdown
Empty gap both ends, multiple self breakdown vacuum gaps of series connection puncture step by step along the outer ring portion of annular self breakdown electrode 17, laser
Trigger multi-stage vacuum switch conduction.During switch conduction, electric current is by multistage self breakdown vacuum gap, in the ring of different structure
Under shape self breakdown electrode 17 acts on, the magnetic field of different directions is formed in vacuum gaps at different levels and generates synergistic effect, accelerating gap
The quick of laser triggering multi-stage vacuum switch is realized in the diffusion motion and cooling procedure of interior electric arc, cooperation laser-triggered vacuum gap
It cut-offs.
Claims (3)
1. a kind of laser triggering multi-stage vacuum switch, which is characterized in that including laser-triggered vacuum gap, multistage self breakdown vacuum
Gap and triggering system；
Multistage self breakdown vacuum gap is fixed on the upper end in laser-triggered vacuum gap, grading ring (6) by fastening connection piece (7)
It is external to be set in insulation crust (3)；
The laser-triggered vacuum gap includes lower insulation crust (9), triggering upper end cover flange (8), triggered gap shielding case
(19), triggering bottom end cover flange (10), cathode conducting rod (15), the plate cathode contact (20) with multiple target electrodes, triggering
Target (22), the planar anode contact (21) with multiple light holes, conductive anode rod (11), bellows with multiple light holes
(23), thang-kng eyeglass (12) and baffles (13)；
The upper and lower ends opening of the lower insulation crust (9) is respectively by triggering upper end cover flange (8) and triggering bottom end cover flange
(10) it seals；
The triggered gap shielding case (19) is fixed in lower insulation crust (9), for optimizing in laser-triggered vacuum gap
Electric field is distributed；The plate cathode contact (20) of the multiple target electrodes of the band and the planar anode contact with multiple light holes
(21) it is positioned opposite, in triggered gap shielding case (19)；
Plate cathode contact (20) with multiple target electrodes is fixed on triggering upper end cover flange (8) by cathode conducting rod (15)
On；Planar anode contact (21) with multiple light holes and the conductive anode rod (11) with multiple light holes are direct-connected, with multiple
The conductive anode rod (11) of light hole is connected to triggering bottom end cover flange (10) through bellows (23) sealing；It is flat with multiple light holes
Triggering on light hole (14) position on template anode contact (21) and the plate cathode contact (20) with multiple target electrodes
Target (22) position corresponds；
Thang-kng eyeglass (12) sealing is connected to conductive anode rod (11) bottom with multiple light holes, and thang-kng eyeglass (12) is outside
Baffles (13) are covered, baffles (13) are fixed on the conductive anode rod with multiple light holes (11), positioned at triggering bottom end cover method
Blue (10) outside, which is provided with and light hole (14) corresponding through-hole；
The multistage self breakdown vacuum gap includes upper insulation crust (3), self breakdown upper end cover flange (2), self breakdown gap
Shielding case (16), self breakdown bottom end cover flange (4), low voltage conductive bar (1), supporting insulator (18), annular self breakdown electrode
(17) and high-voltage conductive rod (5)；
The upper and lower ends of the upper insulation crust (3) are respectively by self breakdown upper end cover flange (2) and self breakdown bottom end cover flange
(4) it seals, multiple self breakdown gap shielding covers (16) are vertically fixed on insulation crust (3) inside, and it is true to optimize multistage self breakdown
Empty gap internal electric field is distributed；
The high-voltage conductive rod (5) is sealed across self breakdown bottom end cover flange (4) and is fixed, the upper end and annular self breakdown electrode
(17) equipotential link, lower end are connect with the upper end of cathode conducting rod (15)；
It is internal that the annular self breakdown electrode (17) and supporting insulator (18) are fixed on multistage self breakdown gap shielding cover (16)；
The supporting insulator (18) has cylindrical bump for top, and the column with full skirt of cylindrical grooves is arranged at bottom,
The supporting insulator (18) of bottommost is connected with high-voltage conductive rod (5), cooperates between each supporting insulator (18), will be more
A annular self breakdown electrode (17) inner ring is clipped in the middle respectively；
The central hollow circular diameter of the annular self breakdown electrode (17) is straight with supporting insulator (18) Upper cylindrical protrusion
Diameter is equal, and electrode inner ring sheet thickness is less than outer shroud and connection in conjunction, and outer ring portion is main discharge electrode, and series gap is led
After logical, electric current is circulated by outer ring portion, changes outer ring portion structure and magnetic field in throughput time gap can be changed in slot type
Direction and intensity, the first order annular self breakdown electrode (17) inner ring are clipped between high-voltage conductive rod (5) and supporting insulator (18),
Series connection forms multistage over-pressed self breakdown vacuum gap by this method；
Groove of the bottom surface of the low voltage conductive bar (1) with cooperation supporting insulator (18), the upper end are passed through on self breakdown
End cap flange (2) sealing is fixed, and lower end groove is through afterbody annular self breakdown electrode (17) and supporting insulator (18) top
Protrusion connection；
The triggering system includes trigger controller (24), laser (25), Transmission Fibers (26), 4:1 light splitting eyeglass (27),
3:1 light splitting eyeglass (28), 2:1 light splitting eyeglass (36), 1:1 light splitting eyeglass (33), full-reverse lens A (30), full-reverse lens B (32),
Full-reverse lens C (35), full-reverse lens D (29), focusing lens A (31), focusing lens B (34), focusing lens C (37) and focus lamp
Piece D (38)；
The trigger controller (24) is responsible for receiving the action command of external system, and passes through Transmission Fibers (26) control laser
Device (25) acts, and generates laser pulse；The laser pulse that laser (25) is sent out, which passes sequentially through, is fixed on laser (25) output
End multiple light splitting lens light-splittings, full-reverse lens reflection, focusing lens focus on after formed upper and lower, left and right, in 5 road energy it is equal
Parallel laser；
Laser pulse passes through 4:1 light splitting eyeglass (27) is divided, full-reverse lens B (32) and focusing lens B of the reflected light through lower section
(34) lower road laser is formed；Laser pulse penetrates 4:The laser of 1 light splitting eyeglass (27) is through 3:1 light splitting eyeglass (28) is divided, reflection
Full-reverse lens C (35) and focusing lens C (37) of the light through left side form left laser；Laser pulse penetrates 3:1 light splitting eyeglass
(28) laser is again through 2:1 light splitting eyeglass (36) is divided, full-reverse lens D (29) and focusing lens D (38) of the reflected light through right side
Form right wing laser；Laser pulse penetrates 2:The laser of 1 light splitting eyeglass (36) is through 1:1 light splitting eyeglass (33) is divided, reflected light warp
Road laser in the full-reverse lens A (30) of top and focusing lens A (31) formation；Laser pulse penetrates 1:1 light splitting eyeglass (33)
Laser forms Road laser by centre focus eyeglass；5 road parallel lasers pass through light hole (14) while focus on triggering target
(22) surface, generating a large amount of initial plasmas makes laser-triggered vacuum gap obtain shorter conducting delay；
The light splitting ratio of described light splitting eyeglass, quantity, position, the quantity of full-reverse lens, the quantity of position and focusing lens,
Position can be adjusted according to the quantity and position of target and light hole, to form the equal parallel laser of more beam energies.
A kind of 2. laser triggering multi-stage vacuum switch as described in claim 1, which is characterized in that the annular self breakdown electricity
Pole (17) includes the intercombination of one or more structures in plate, vertical magnetic-type, horizontal magnetic-type.
A kind of 3. laser triggering multi-stage vacuum switch as claimed in claim 1 or 2, which is characterized in that described 4:1 spectroscope
The transmitance of piece (27) is 80%, 3:The transmitance of 1 light splitting eyeglass (28) is 75%, 2:1 light splitting eyeglass (36) transmitance be
66%, 1:The transmitance of 1 light splitting eyeglass (33) is 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638537.6U CN207475522U (en) | 2017-11-30 | 2017-11-30 | A kind of laser triggering multi-stage vacuum switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638537.6U CN207475522U (en) | 2017-11-30 | 2017-11-30 | A kind of laser triggering multi-stage vacuum switch |
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| CN207475522U true CN207475522U (en) | 2018-06-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107743031A (en) * | 2017-11-30 | 2018-02-27 | 大连理工大学 | A kind of laser triggering multi-stage vacuum switch |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107743031A (en) * | 2017-11-30 | 2018-02-27 | 大连理工大学 | A kind of laser triggering multi-stage vacuum switch |
| WO2019104908A1 (en) * | 2017-11-30 | 2019-06-06 | 大连理工大学 | Laser triggered multi-stage vacuum switch |
| CN107743031B (en) * | 2017-11-30 | 2019-08-13 | 大连理工大学 | A kind of laser triggering multi-stage vacuum switch |
| US10594113B2 (en) | 2017-11-30 | 2020-03-17 | Dalian University Of Technology | Laser triggered multi-stage vacuum switch |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180608 Effective date of abandoning: 20190813 |