CN103944072A - Compact inductor and load integrated gas switch - Google Patents
Compact inductor and load integrated gas switch Download PDFInfo
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- CN103944072A CN103944072A CN201410120289.0A CN201410120289A CN103944072A CN 103944072 A CN103944072 A CN 103944072A CN 201410120289 A CN201410120289 A CN 201410120289A CN 103944072 A CN103944072 A CN 103944072A
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Abstract
The invention provides a compact inductor and load integrated gas switch. The compact inductor and load integrated gas switch comprises an outer insulating cylinder, a conical cathode electrode tip and a conical anode electrode tip; the two ends of the outer insulating cylinder are sealed by the conical cathode electrode tip and the conical anode electrode tip respectively, the outer insulating cylinder is filled with high-pressure insulation gas, and at least one of the cathode electrode tip and the anode electrode tip is a hollow conical surface electrode structure. The hollow conical surface electrode structure comprises an electrode tip, an electrode base plate and an inductance unit arranged between the electrode tip and the electrode base plate, the electrode base plate is of a circular ring structure, the electrode tip, semi-circular-ring-shaped inductors and an inductor supporting section form a hollow conical surface layout. The inductors, load and switch integrated structure is obtained under the high-voltage and high-field conditions, so that a switch circuit structure is more compact, and self inductance is controllable.
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 forward position electromagnetic impulse source.
Background technology
Switch is the Primary Component in Pulse Power Techniques field, and it is connecting energy storage device and load.The performance impact of switch rise time, shape and the amplitude of output voltage waveforms.The high-voltage switch gear being applied in pulse power field has gas switch, vacuum switch, semiconductor switch, mechanical switch etc., and different application scenarios is also different to the requirement of switch performance and type.In the electromagnetic impulse source of large-scale fast forward position, often require controlled, high withstand voltage, the compact conformation of switched inductors, control simple and reliable etc.
In conventional pulse-power apparatus, the general and inductance of gas switch and load design respectively, are connected in circuit.The normal two electrode symmetric designs that adopt of switch, inside fill insulating gas, and switched inductors, by structures shape, can not regulate; The inductance sealing in switch loop generally adopt the external conductor lines of insulator surface cutting around surface insulation structure, must adopt surface insulation threshold value to consider, make this structure inductance heaviness, require insulation distance longer, cause that the volume of equipment is large and output-index is uncontrollable; Load is generally according to equipment requirement project organization and be connected in switch loop.Such switch loop structure needs enough spaces to settle respectively each parts, so switch loop structure volume is larger, that cannot do is very compact.Meanwhile, inductance adopts surface insulation may significantly reduce dielectric strength, and insulation damages easily occurs.
In the facility environment requiring at high voltage, highfield, the volume in General Requirements switch loop is as far as possible little.Because the volume meeting bigger than normal of switch loop causes insulator bulky, the series of problems such as manufacturing cost increase.And requiring to export in the electromagnetic impulse source in fast forward position, it is very difficult adopting the thinking of design respectively of switch, inductance and load to regulate the output pulse front edge of electromagnetic pulse dummy source, technically with in manufacturing cost, be all worthless.
Summary of the invention
In the facility environment requiring at high voltage, highfield, small size, in order to meet the controlled demand of switch application, 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, taper cathode tabs and taper anode electrode head; Described taper cathode tabs and taper anode electrode head seal external insulation cylinder from the two ends of external insulation cylinder respectively; In described external insulation cylinder, fill High-Voltage Insulation gas;
At least one in described cathode tabs and anode electrode head adopts open circles conical surface electrode structure;
Described open circles conical surface electrode structure comprise electrode tip, electrode chassis and be arranged on electrode tip and electrode chassis between inductance unit;
Described electrode chassis is cirque structure;
Described inductance unit comprises a semicircle ring-shaped inductors; Described semicircle ring-shaped inductors 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 semicircle ring-shaped inductors, inductance supporting section form an open circles conical surface layout.
The tip end surface rounding off of above-mentioned electrode tip, forms the slightly non-uniform electric field that electric field nonuniformity coefficient is less than 2; Between described electrode tip and inductance supporting section, between inductance supporting section and semicircle ring-shaped inductors, between inductance supporting section and electrode chassis, be the transition structure of fillet line cutting.
The cone angle scope of above-mentioned open circles conical surface structure is 15～60 degree 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, taper cathode tabs and taper anode electrode head; Described taper cathode tabs and taper anode electrode head seal external insulation cylinder from the two ends of external insulation cylinder respectively; In described external insulation cylinder, fill High-Voltage Insulation gas;
At least one in described cathode tabs and anode electrode head adopts open circles conical surface electrode structure;
Described open circles conical surface electrode structure comprise electrode tip, electrode chassis and be arranged on electrode tip and electrode chassis between inductance unit;
Described electrode chassis is cirque structure;
Described inductance unit comprises at least two semicircle ring-shaped inductors; Described semicircle ring-shaped inductors is parallel with electrode chassis; Between adjacent described semicircle ring-shaped inductors, phase angle differs 180 degree; Between adjacent described semicircle ring-shaped inductors, join end to end by inductance supporting section; The other end of the semicircle ring-shaped inductors of top is connected with electrode tip by inductance supporting section, and the other end of the semicircle ring-shaped inductors 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 semicircle ring-shaped inductors, inductance supporting section form an open circles conical surface layout.
The tip end surface rounding off of above-mentioned electrode tip, forms the slightly non-uniform electric field that electric field nonuniformity coefficient is less than 2; Between described electrode tip and inductance supporting section, between inductance supporting section and semicircle ring-shaped inductors, between inductance supporting section and electrode chassis, be the transition structure of fillet line cutting.
The cone angle scope of above-mentioned open circles conical surface structure is 15～60 degree angles.
Above-mentioned electrode tip, electrode chassis, inductance unit adopt stainless steel or brass.
Advantage of the present invention is:
1, the present invention has realized high voltage, and the integral structure of inductance, load and switch under strong electric field condition makes switch loop structure compacter, and self inductance is controlled.This switch can adapt to the operational environment of the inner compactness of large-scale electromagnetic pulse analogue means, complexity and gas pressure wide variation; The forward position that can meet forward position 1-a few ns pulse voltages regulates.
2, inductance main part of the present invention adopts body to puncture the form of insulation, and electric field is strengthened to point has carried out round and smooth processing, and the volume of inductance section is reduced greatly, and dielectric strength obtained larger lifting, thereby reaches the object that improves 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 line cutting realizes; And in cutting on line process, all electric fields enhancing points are carried out to the round and smooth processing of disposable cutting; Thereby reduce difficulty of processing, and ensured 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, the present invention has realized the comprehensive Design of switch and load, and switch electrode itself exists as the part of load, thereby has greatly reduced the volume in switch loop, makes switch loop inductance controlled, meets the requirement in the fast forward position of electromagnetic impulse source output waveform.
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 air 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, in the time being applied to radiated wave simulator output pulse steepness, can better realize being connected of simulator clock and antenna, makes device overall structure be beneficial to more continuously the generation of fast forward position electromagnetic pulse environment.
Brief description of the drawings
The construction of switch schematic 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 has adopted 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 sealing, inside fills High-Voltage Insulation gas.Electrode is processed by the brass material of high conductivity, nonferromagnetic material.Switch electrode tip end surface rounding off, forms the slightly non-uniform 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 is arranged unordered, as far as possible inconsistent with direction of an electric field, can improve external insulation cylinder surfaces externally and internally withstand voltage level.The axial compressive force that external insulation cylinder transmits by external structure is installed on load cone extension, adopts the mode of radial seal to ensure the SF6 air seal of the highest 1.5MPa of switch inside 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, and the bus of pyramidal structure and the angle of axis are adjustable at 15～60 degree angles.According to the computing formula of bipyramid impedance, can obtain the angles of loading consistent with equipment output loading requirement.
In conjunction with Fig. 1, negative electrode of the present invention is installed and high-pressure side by screw thread, and its sealing is the realization that coordinates with seal groove in cone and radial direction seal ring 6 by electrode sealed bottom face.Integral structure is taked in anode of the present invention and inductance, load, is installed on load extension 7, and carries out the adjusting of switch air pressure by switch charge/discharge gas hole 8 by the screwed hole of its bottom.
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 is by one section of hollow cone support structure that meets angles of loading requirement, on this hollow cone surface, adopt wire cutting technology to make two sections of semi arch inductance, and in all transition structures, adopt fillet line cutting.Two inductance sections 4 adopt series aiding connection structure on circuit, and every section of inductance all carries out round-corner transition processing along the conical surface, to obtain best inductance insulation property.
In conjunction with Fig. 2, inductance section of the present invention is carried out wire cutting technology realization along the conical surface, and all corners adopt rounding off processing, have ensured mechanical strength and dielectric strength.After machining, all seamed edges of inductance section are carried out to chamfered, make inductance section Electric Field Distribution more even.、
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 bipyramid structure of mating with load request, and bipyramid becomes 15～60 degree 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 on this hollow cone 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 line cutting realizes; And in cutting on line process, all electric fields enhancing points are carried out to the round and smooth processing of disposable cutting; Thereby reduce difficulty of processing, and ensured mechanical strength and the electric field dielectric strength of inductance section.To obtain best inductance insulation property.
3, the controlled thought of switch electrode inductance.
By regulating the diameter of electrode inductance section and the quantity of semicircle inductance can realize the control to electrode inductance.
4, integrated mentality of designing and the structure of switch electrode inductance section and load.
The design of switched inductors section of the present invention concentrates on the electrode of switch, and switch one or both ends electrode is by one section of hollow cone support structure that meets certain angle requirement, and this angle is consistent with load request.
5, the extensibility of switch electrode
Switch electrode of the present invention can adopt the controlled electrode of this inductance at arbitrary electrode of negative electrode, anode, also can all adopt on both sides, has certain selectivity and flexibility.
Operation principle of the present invention is: when switch, negative electrode is in high potential, and anode is in electronegative potential.In the time that high-voltage pulse arrives, between positive and negative electrode, produce highfield, cause switch main gap to puncture, inductance and bipyramid load are accessed in switch loop 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, taper cathode tabs and taper anode electrode head; Described taper cathode tabs and taper anode electrode head seal external insulation cylinder from the two ends of external insulation cylinder respectively; In described external insulation cylinder, fill High-Voltage Insulation gas;
At least one in described cathode tabs and anode electrode head adopts open circles conical surface electrode structure;
Described open circles conical surface electrode structure comprise electrode tip, electrode chassis and be arranged on electrode tip and electrode chassis between inductance unit;
Described electrode chassis is cirque structure;
Described inductance unit comprises a semicircle ring-shaped inductors; Described semicircle ring-shaped inductors 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 semicircle ring-shaped inductors, 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 non-uniform electric field that electric field nonuniformity coefficient is less than 2; Between described electrode tip and inductance supporting section, between inductance supporting section and semicircle ring-shaped inductors, between inductance supporting section and electrode chassis, be the transition structure of fillet line cutting.
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 conical surface structure is 15～60 degree 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, taper cathode tabs and taper anode electrode head; Described taper cathode tabs and taper anode electrode head seal external insulation cylinder from the two ends of external insulation cylinder respectively; In described external insulation cylinder, fill High-Voltage Insulation gas;
At least one in described cathode tabs and anode electrode head adopts open circles conical surface electrode structure;
Described open circles conical surface electrode structure comprise electrode tip, electrode chassis and be arranged on electrode tip and electrode chassis between inductance unit;
Described electrode chassis is cirque structure;
Described inductance unit comprises at least two semicircle ring-shaped inductors; Described semicircle ring-shaped inductors is parallel with electrode chassis; Between adjacent described semicircle ring-shaped inductors, phase angle differs 180 degree; Between adjacent described semicircle ring-shaped inductors, join end to end by inductance supporting section; The other end of the semicircle ring-shaped inductors of top is connected with electrode tip by inductance supporting section, and the other end of the semicircle ring-shaped inductors 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 semicircle ring-shaped inductors, 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 non-uniform electric field that electric field nonuniformity coefficient is less than 2; Between described electrode tip and inductance supporting section, between inductance supporting section and semicircle ring-shaped inductors, between inductance supporting section and electrode chassis, be the transition structure of fillet line cutting.
7. according to the compact type electric inductance load integrated gas switch described in claim 5 or 6, it is characterized in that: the cone angle scope of described open circles conical surface structure is 15～60 degree 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| 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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| CN103944072A true CN103944072A (en) | 2014-07-23 |
| CN103944072B CN103944072B (en) | 2016-01-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631640A (en) * | 2018-05-11 | 2018-10-09 | 西北核技术研究所 | A kind of pulsed drive source that output pulse width is variable |
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| JPH117854A (en) * | 1997-06-14 | 1999-01-12 | Nitto Denko Corp | Insulation mold |
| CN101924328A (en) * | 2010-04-30 | 2010-12-22 | 西北核技术研究所 | Stack-type multi-gap gas switch |
| 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 |
| CN103490283A (en) * | 2013-08-27 | 2014-01-01 | 西北核技术研究所 | Square gas switch with multiple gaps connected in parallel and discharge circuit comprising same |
-
2014
- 2014-03-27 CN CN201410120289.0A patent/CN103944072B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH117854A (en) * | 1997-06-14 | 1999-01-12 | Nitto Denko Corp | Insulation mold |
| CN101924328A (en) * | 2010-04-30 | 2010-12-22 | 西北核技术研究所 | Stack-type multi-gap gas switch |
| 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 |
| CN103490283A (en) * | 2013-08-27 | 2014-01-01 | 西北核技术研究所 | Square gas switch with multiple gaps connected in parallel and discharge circuit comprising same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631640A (en) * | 2018-05-11 | 2018-10-09 | 西北核技术研究所 | A kind of pulsed drive source that output pulse width is variable |
| CN108631640B (en) * | 2018-05-11 | 2019-12-27 | 西北核技术研究所 | Pulse driving source with variable output pulse width |
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| CN103944072B (en) | 2016-01-20 |
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