CN103944072B - A kind of compact type electric inductance load integrated gas switch - Google Patents
A kind of compact type electric inductance load integrated gas switch Download PDFInfo
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- CN103944072B CN103944072B CN201410120289.0A CN201410120289A CN103944072B CN 103944072 B CN103944072 B CN 103944072B CN 201410120289 A CN201410120289 A CN 201410120289A CN 103944072 B CN103944072 B CN 103944072B
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Abstract
The invention provides a kind of compact type electric inductance load integrated gas switch, comprise external insulation cylinder, cone-shaped cathode electrode tip and cone-shaped anode electrode tip; External insulation cylinder seals from the two ends of external insulation cylinder by cone-shaped cathode electrode tip and cone-shaped anode electrode tip respectively; High-Voltage Insulation gas is filled in external insulation cylinder; At least one in cathode tabs and anode electrode head adopts open circles conical surface electrode structure; The inductance unit that open circles conical surface electrode structure comprises electrode tip, electrode chassis and is arranged between electrode tip and electrode chassis; Electrode chassis is cirque structure; Electrode tip, semicircle semi-circular shape inductance, inductance supporting section form an open circles conical surface layout.Present invention achieves high voltage, the integral structure of the inductance under strong electric field condition, load and switch, make switching circuitry structure compacter, own inductance is controlled.
Description
Technical field
The invention belongs to a kind of compact type electric inductance, load integrated gas switch, be specifically related to a kind of compact-type high-pressure gas switch of the forward position regulation technology for large-scale fast rise time electromagnetic impulse source.
Background technology
Switch is the Primary Component in technical field of pulse power, and it is connected to energy storage device and load.The performance impact of switch rise time of output voltage waveforms, shape and amplitude.The high-voltage switch gear be applied in pulse power field has gas switch, vacuum switch, semiconductor switch, mechanical switch etc., and the requirement of different application scenarios to switch performance and type is also different.In large-scale fast rise time electromagnetic impulse source, often require controlled, high withstand voltage, the compact conformation of switched inductors, control simple and reliable.
In conventional pulse-power apparatus, the general and inductance of gas switch and load design respectively, are connected in circuit.Switch often adopts two electrode symmetrical design, inside fills insulating gas, and switched inductors, by structures shape, can not regulate; The inductance sealed in switching circuitry generally adopt the external conductor lines of insulator surface cutting around surface insulation structure, surface insulation threshold value must be adopted to consider, make this structure inductance heavy, require that insulation distance is longer, cause that the volume of equipment is large and output-index is uncontrollable; Load is generally connected in switching circuitry according to equipment requirement project organization.Such switching circuitry structure needs enough spaces to settle each parts respectively, so switching circuitry structural volume is comparatively large, that cannot do is very compact.Meanwhile, inductance adopts surface insulation significantly may reduce dielectric strength, easily insulation damages occurs.
In the facility environment that high voltage, highfield require, the volume of General Requirements switching circuitry is little as far as possible.Because the meeting bigger than normal of switching circuitry volume causes insulator bulky, the series of problems such as manufacturing cost increase.And requiring to export in the electromagnetic impulse source of fast rise time, adopt switch, the thinking designed respectively of inductance and load be very difficult to regulate the output pulse front edge of electromagnetic pulse dummy source, technically with manufacturing cost is all worthless.
Summary of the invention
In the facility environment that high voltage, highfield, small size require, in order to meet switch application, the controlled demand of inductance of compact electromagnetic impulse source, the invention provides a kind of compact type electric inductance load integrated gas switch.
Technical solution of the present invention is:
A kind of compact type electric inductance load integrated gas switch, its special character is:
Comprise external insulation cylinder, cone-shaped cathode electrode tip and cone-shaped anode electrode tip; External insulation cylinder seals from the two ends of external insulation cylinder by described cone-shaped cathode electrode tip and cone-shaped anode electrode tip respectively; High-Voltage Insulation gas is filled in described external insulation cylinder;
At least one in described cathode tabs and anode electrode head adopts open circles conical surface electrode structure;
The inductance unit that described open circles conical surface electrode structure comprises electrode tip, electrode chassis and is arranged between electrode tip and electrode chassis;
Described electrode chassis is cirque structure;
Described inductance unit comprises a semi-circular shape inductance; Described semi-circular shape inductance is parallel with electrode chassis, and its one end is connected with electrode tip by inductance supporting section, and its other end is connected with electrode chassis; The height of described inductance supporting section meets the requirement of inductance insulation property;
Described electrode tip, semicircle semi-circular shape inductance, inductance supporting section form an open circles conical surface layout.
The tip end surface rounding off of above-mentioned electrode tip, forms the slightly uneven electric field that electric field nonuniformity coefficient is less than 2; The transition structure that fillet line cuts is between described electrode tip and inductance supporting section, between inductance supporting section and semi-circular shape inductance, between inductance supporting section and electrode chassis.
The cone angle scope of above-mentioned open circles cone structure is 15 ~ 60 degree of angles.
Above-mentioned electrode tip, electrode chassis, inductance unit adopt stainless steel or brass.
A kind of compact type electric inductance load integrated gas switch, its special character is:
Comprise external insulation cylinder, cone-shaped cathode electrode tip and cone-shaped anode electrode tip; External insulation cylinder seals from the two ends of external insulation cylinder by described cone-shaped cathode electrode tip and cone-shaped anode electrode tip respectively; High-Voltage Insulation gas is filled in described external insulation cylinder;
At least one in described cathode tabs and anode electrode head adopts open circles conical surface electrode structure;
The inductance unit that described open circles conical surface electrode structure comprises electrode tip, electrode chassis and is arranged between electrode tip and electrode chassis;
Described electrode chassis is cirque structure;
Described inductance unit comprises at least two semi-circular shape inductance; Described semi-circular shape inductance is parallel with electrode chassis; Carrier phase shift 180 degree between adjacent described semi-circular shape inductance; Joined end to end by inductance supporting section between adjacent described semi-circular shape inductance; The other end of the semi-circular shape inductance of top is connected with electrode tip by inductance supporting section, and the other end of the semi-circular shape inductance of bottommost is connected with electrode chassis by inductance supporting section; The height of described inductance supporting section meets the requirement of inductance insulation property;
Described electrode tip, semicircle semi-circular shape inductance, inductance supporting section form an open circles conical surface layout.
The tip end surface rounding off of above-mentioned electrode tip, forms the slightly uneven electric field that electric field nonuniformity coefficient is less than 2; The transition structure that fillet line cuts is between described electrode tip and inductance supporting section, between inductance supporting section and semi-circular shape inductance, between inductance supporting section and electrode chassis.
The cone angle scope of above-mentioned open circles cone structure is 15 ~ 60 degree of angles.
Above-mentioned electrode tip, electrode chassis, inductance unit adopt stainless steel or brass.
Advantage of the present invention is:
1, present invention achieves high voltage, the integral structure of the inductance under strong electric field condition, load and switch, make switching circuitry structure compacter, own inductance is controlled.This switch can adapt to compact, the complicated and operational environment of gas pressure wide variation in large-scale electromagnetic pulse analogue means inside; The forward position that can meet forward position 1-a few ns pulse voltage regulates.
2, inductance main part of the present invention adopts body to puncture the form of insulation, and has carried out round and smooth process to electric-field enhancing point, the volume of inductance section is reduced greatly, and dielectric strength obtains larger lifting, thus reaches the object improving withstand voltage and cramped construction.
3, the processing of inductance segment electrode of the present invention adopts first solid conical and electrode tip, is reprocessed into the hollow conical surface, and the technique of finally carrying out Linear cut realizes; And in cutting on line process, the round and smooth process of disposable cutting is carried out to all electric-field enhancing points; Thus reduce difficulty of processing, and ensure that mechanical strength and the electric field dielectric strength of inductance section.Practical application proves, switched inductors section is born electric power and is greater than 370N, and mechanical deformation does not occur; Switch is under 2.5MV pulse voltage, and insulation breakdown does not occur inductance section.
4, present invention achieves the comprehensive Design of switch and load, switch electrode itself exists as the part of load, thus substantially reduces the volume of switching circuitry, makes switching circuitry inductance controlled, meets the requirement of electromagnetic impulse source output waveform fast rise time.
5, main-body electrode of the present invention adopts brass can improve switch under pulse voltage, to puncture stability, can reduce the difficulty in the course of processing simultaneously.Practical application proves, when switch pressure is up to 1.5MPa, the stable puncture voltage peak value of switch can reach 2.5MV.
6, coaxial configuration of the present invention, when being applied to Radiating-wave simulator and exporting pulse steeping, better can realize the connection of simulator clock and antenna, make device overall structure be beneficial to the generation of fast rise time electromagnetic pulse environment more continuously.
Accompanying drawing explanation
The switch structure diagram that Fig. 1 designs for single pole inductive;
Fig. 2 is anode inductance section schematic three dimensional views;
Fig. 3 is the side schematic view of Fig. 2, and the place that wherein screwed hole is contained on electrode chassis have employed partial cutaway;
Reference numeral is as follows: 1-external insulation cylinder, 2-cathode tabs, 3-anode electrode head, 4-inductance section, 6-radial direction seal ring, 7-load cone extension, 8-switch charge/discharge gas hole.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described:
As shown in Figure 1, compact type electric inductance load integrated gas switch of the present invention adopts two electrodes, self breakdown structure.Anode electrode head 3 and cathode tabs 2 form main electrode cavity with external insulation cylinder 1, and cavity seals, and inside fills High-Voltage Insulation gas.Electrode is processed by the brass material of high conductivity, non-ferromagnetic substance.Switch electrode tip end surface rounding off, forms the slightly uneven electric field that electric field nonuniformity coefficient is less than 2.Switch external insulation cylinder employing mechanical strength is high, the vacuum impregnation glass fibre reinforced plastic cylinder of good insulation preformance, and surfaces externally and internally is smooth, and remaining a small amount of bubble arrangement is unordered, as far as possible inconsistent with direction of an electric field, can improve external insulation cylinder surfaces externally and internally withstand voltage level.External insulation cylinder is installed on load cone extension by the axial compressive force that external structure is transmitted, and adopts the mode of radial seal to ensure the SF6 air seal of the highest 1.5MPa of switch internal with cone.
The overall structure of two electrodes in compact type electric inductance load integrated gas switch adopts the pyramidal structure of mating with load request, the bus of pyramidal structure and the angle of axis adjustable at 15 ~ 60 degree of angles.According to the computing formula of bipyramid impedance, the angles of loading consistent with equipment output loading requirement can be obtained.
Composition graphs 1, negative electrode of the present invention is installed and high-pressure side by screw thread, its sealing by electrode base sealing surface with realize the seal groove in cone and coordinating of radial direction seal ring 6.Integral structure is taked in anode of the present invention and inductance, load, is installed on load extension 7 by the screwed hole bottom it, and carries out the adjustment of switch pressure by switch charge/discharge gas hole 8.
Any one in cathode tabs in the present invention and anode electrode head all can adopt open circles conical surface electrode structure, open circles conical surface electrode meets the hollow cone support structure of angles of loading requirement by one section, adopt wire cutting technology to make two sections of semi arch inductance on the surface at this hollow cone, and adopt fillet line to cut in all transition structures.Two inductance sections 4 adopt series aiding connection structure on circuit, and every section of inductance all carries out round-corner transition process along the conical surface, to obtain best inductance insulation property.
Composition graphs 2, inductance section of the present invention carries out wire cutting technology realization along the conical surface, and all corners adopt rounding off process, ensure that mechanical strength and dielectric strength.After machining, chamfered is carried out to all seamed edges of inductance section, make inductance section Electric Field Distribution evenly.、
The thought that the present invention embodies:
1, switch, inductance and load integrated design thinking and structure.
The overall structure of switch electrode of the present invention adopts the double cone structure mated with load request, and bipyramid becomes 15 ~ 60 degree of angles with axle center.According to the computing formula of bipyramid impedance, can obtain, in switch, the wave impedance of bipyramid section requires consistent with equipment output loading.
2, the processing method of switch electrode.
The present invention adopts wire cutting technology to make two sections of semi arch inductance at this hollow cone on the surface, and every section of inductance adopts series aiding connection structure on circuit.The processing of inductance segment electrode of the present invention adopts first solid conical and electrode tip, is reprocessed into the hollow conical surface, and the technique of finally carrying out Linear cut realizes; And in cutting on line process, the round and smooth process of disposable cutting is carried out to all electric-field enhancing points; Thus reduce difficulty of processing, and ensure that mechanical strength and the electric field dielectric strength of inductance section.To obtain best inductance insulation property.
3, the thought that switch electrode inductance is controlled.
The control to electrode inductance can be realized by the quantity of the diameter and semicircle inductance that regulate electrode inductance section.
4, the integrated mentality of designing of switch electrode inductance section and load and structure.
The design of switched inductors section of the present invention concentrates on the electrode of switch, and switch one or both ends electrode meets the hollow cone support structure of certain angle requirement by one section, and this angle is consistent with load request.
5, the extensibility of switch electrode
The electrode that switch electrode of the present invention can adopt this inductance controlled at arbitrary electrode of negative electrode, anode, also all can adopt on both sides, has certain selectivity and flexibility.
Operation principle of the present invention is: during switch, and negative electrode is in high potential, and anode is in electronegative potential.When high-voltage pulse arrives, between positive and negative electrode, produce highfield, cause switch main gap to puncture, inductance and bipyramid load are accessed in switching circuitry simultaneously, and then realize inductance and load in little space in place in circuit.Now, the voltage drop of switched inductors section and the value of every section of inductance and to be carried in the rate of change of its electric current of two sections relevant, must carry out design and the check of dielectric strength.After pulse voltage disappears, the blow-out of switch main gap, switch returns to state of insulation, and the voltage drop of inductance section disappears.
Claims (8)
1. a compact type electric inductance load integrated gas switch, is characterized in that:
Comprise external insulation cylinder, cone-shaped cathode electrode tip and cone-shaped anode electrode tip; External insulation cylinder seals from the two ends of external insulation cylinder by described cone-shaped cathode electrode tip and cone-shaped anode electrode tip respectively; High-Voltage Insulation gas is filled in described external insulation cylinder;
At least one in described cathode tabs and anode electrode head adopts open circles conical surface electrode structure;
The inductance unit that described open circles conical surface electrode structure comprises electrode tip, electrode chassis and is arranged between electrode tip and electrode chassis;
Described electrode chassis is cirque structure;
Described inductance unit comprises a semi-circular shape inductance; Described semi-circular shape inductance is parallel with electrode chassis, and its one end is connected with electrode tip by inductance supporting section, and its other end is connected with electrode chassis; The height of described inductance supporting section meets the requirement of inductance insulation property;
Described electrode tip, semi-circular shape inductance, inductance supporting section form an open circles conical surface layout.
2. compact type electric inductance load integrated gas switch according to claim 1, is characterized in that: the tip end surface rounding off of described electrode tip, forms the slightly uneven electric field that electric field nonuniformity coefficient is less than 2; The transition structure that fillet line cuts is between described electrode tip and inductance supporting section, between inductance supporting section and semi-circular shape inductance, between inductance supporting section and electrode chassis.
3. compact type electric inductance load integrated gas switch according to claim 1 and 2, is characterized in that: the cone angle scope of described open circles cone structure is 15 ~ 60 degree of angles.
4. compact type electric inductance load integrated gas switch according to claim 3, is characterized in that: described electrode tip, electrode chassis, inductance unit adopt stainless steel or brass.
5. a compact type electric inductance load integrated gas switch, is characterized in that:
Comprise external insulation cylinder, cone-shaped cathode electrode tip and cone-shaped anode electrode tip; External insulation cylinder seals from the two ends of external insulation cylinder by described cone-shaped cathode electrode tip and cone-shaped anode electrode tip respectively; High-Voltage Insulation gas is filled in described external insulation cylinder;
At least one in described cathode tabs and anode electrode head adopts open circles conical surface electrode structure;
The inductance unit that described open circles conical surface electrode structure comprises electrode tip, electrode chassis and is arranged between electrode tip and electrode chassis;
Described electrode chassis is cirque structure;
Described inductance unit comprises at least two semi-circular shape inductance; Described semi-circular shape inductance is parallel with electrode chassis; Carrier phase shift 180 degree between adjacent described semi-circular shape inductance; Joined end to end by inductance supporting section between adjacent described semi-circular shape inductance; The other end of the semi-circular shape inductance of top is connected with electrode tip by inductance supporting section, and the other end of the semi-circular shape inductance of bottommost is connected with electrode chassis by inductance supporting section; The height of described inductance supporting section meets the requirement of inductance insulation property;
Described electrode tip, semi-circular shape inductance, inductance supporting section form an open circles conical surface layout.
6. compact type electric inductance load integrated gas switch according to claim 5, is characterized in that: the tip end surface rounding off of described electrode tip, forms the slightly uneven electric field that electric field nonuniformity coefficient is less than 2; The transition structure that fillet line cuts is between described electrode tip and inductance supporting section, between inductance supporting section and semi-circular shape inductance, between inductance supporting section and electrode chassis.
7. the compact type electric inductance load integrated gas switch according to claim 5 or 6, is characterized in that: the cone angle scope of described open circles cone structure is 15 ~ 60 degree of angles.
8. compact type electric inductance load integrated gas switch according to claim 7, is characterized in that: described electrode tip, electrode chassis, inductance unit adopt stainless steel or brass.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410120289.0A CN103944072B (en) | 2014-03-27 | 2014-03-27 | A kind of compact type electric inductance load integrated gas switch |
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| CN201410120289.0A CN103944072B (en) | 2014-03-27 | 2014-03-27 | A kind of compact type electric inductance load integrated gas switch |
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| CN103944072B true CN103944072B (en) | 2016-01-20 |
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| CN108631640B (en) * | 2018-05-11 | 2019-12-27 | 西北核技术研究所 | Pulse driving source with variable output pulse width |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255552A (en) * | 2011-06-21 | 2011-11-23 | 西安交通大学 | Compact type fast pulse discharging unit |
| 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 |
| CN202957450U (en) * | 2012-10-31 | 2013-05-29 | 陕西海泰电子有限责任公司 | Low-inductance gas spark switch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH117854A (en) * | 1997-06-14 | 1999-01-12 | Nitto Denko Corp | Insulation mold |
| CN101924328B (en) * | 2010-04-30 | 2012-11-28 | 西北核技术研究所 | Stack-type multi-gap gas switch |
| CN103490283B (en) * | 2013-08-27 | 2015-06-03 | 西北核技术研究所 | Square gas switch with multiple gaps connected in parallel and discharge circuit comprising same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255552A (en) * | 2011-06-21 | 2011-11-23 | 西安交通大学 | Compact type fast pulse discharging unit |
| 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 |
| CN202957450U (en) * | 2012-10-31 | 2013-05-29 | 陕西海泰电子有限责任公司 | Low-inductance gas spark switch |
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