CN205384299U - Small -size switch structure for impulse generator - Google Patents
Small -size switch structure for impulse generator Download PDFInfo
- Publication number
- CN205384299U CN205384299U CN201620189594.XU CN201620189594U CN205384299U CN 205384299 U CN205384299 U CN 205384299U CN 201620189594 U CN201620189594 U CN 201620189594U CN 205384299 U CN205384299 U CN 205384299U
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- switch
- threaded rod
- voltage generator
- electrically conductive
- conductive support
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Abstract
The utility model provides a small -size switch structure for impulse generator, its technical essential lies in: including two ball gap switch and two electrically conductive support columns, on impulse generator's mounting panel is located to two electrically conductive support column parallels, ball gap switch includes the switch threaded rod, and the tip of switch threaded rod is equipped with rather than vertically arc end face, electrically conductive support column be close to the upper end seted up with switch threaded rod assorted screw hole, two ball gap switch are respectively through switch threaded rod and two electrically conductive support column threaded connection, the arc end face who connects two back ball gap switch is adjacent. The utility model discloses the volume is less, and simple structure switches on respond wellly, can realize that the pulse voltage grade at the impulse generator of tens kilovolts to tens kilovolts miniaturization, can satisfy that some electric pressures are low, low capacity collision test's demand, and it lands to show has improved measuring work efficiency.
Description
Technical field:
This utility model relates to a kind of impulse voltage generator switch, is specifically related to a kind of small impingement voltage generator construction of switch.
Background technology:
Impulse voltage generator is a kind of generating means producing pulse high-voltage, it is mainly used in various power equipments are carried out the impact test of lightning impulse voltage all-wave, lightning impulse voltage wave chopping and operating impulse voltage ripple, checks power equipment insulating properties under overvoltage.At present, impulse voltage generator mainly, Large Copacity high based on electric pressure；And electric pressure is low, capacity is less small impingement voltage generator is comparatively rare, by contrast, small impingement voltage generator can meet that some electric pressures are low, the demand of low capacity impact test, have be convenient for carrying, be convenient for measuring, required floor space is little and the advantage such as the work efficiency that can significantly increase measurement.So the development of small impingement generator has great significance.
In order to realize the pulse voltage grade impulse voltage generator at the miniaturization of tens kilovolts to tens kilovolts, make it be convenient for carrying, and some specific low-voltage, low capacity impact test in can be conveniently carried out measure, improve the work efficiency measured, being generally adopted high-voltage switch gear (IGBT) at present replaces atmospherical discharges ball gap as controlling switch, thus improving the control mode of charging and discharging circuit.But when adopting IGBT as high-voltage switch gear, owing to self exists the problem of conducting time delay in trigger process, can make to produce during switch triggering at different levels nonsynchronous phenomenon, the surge waveform resulted in can not meet associated specifications.High pressure IGBT in order to ensure every one-level switchs and synchronizes to trigger, so to increase delay driving circuit to ensure the reliable and stable of synchronizing process, which adds the complexity of whole impulse voltage generator, it is impossible to reach to make the purpose of its enough miniaturization.Additionally, the price of high pressure IGBT is costly, after repeatedly turning on and off, its service life significantly reduces.Therefore, one simple in construction of design, small volume, the construction of switch with good turn-on effect are very necessary to be suitably applied small impingement voltage generator.
Summary of the invention:
The purpose of this utility model is to provide a kind of small impingement voltage generator construction of switch, this construction of switch volume is less, simple in construction, turn-on effect is good, the pulse voltage grade impulse voltage generator at the miniaturization of tens kilovolts to tens kilovolts can be realized, can meet that some electric pressures are low, the demand of low capacity impact test, considerably improve the work efficiency of measurement.
Small impingement voltage generator construction of switch of the present utility model, the technical scheme adopted for achieving the above object is in that: include two sphere gap switches and two conductive supporting posts, on two parallel installing plates being located at impulse voltage generator of conductive supporting post, described sphere gap switch includes switch threaded rod, the end of switch threaded rod is provided with perpendicular curved end, described conductive supporting post offers near upper end and switchs the screwed hole that threaded rod matches, two sphere gap switches connect respectively through switch threaded rod and two conductive supporting male screws, the curved end connecting latter two sphere gap switch is adjacent.
As further improvement of the utility model, described conductive supporting post with installing plate for threadeding, and be attached fixing with nut, thus the position height that scalable conductive supporting post is on a mounting board, so that the center of the curved end of two sphere gap switches is on same straight line.
The beneficial effects of the utility model are: construction of switch volume of the present utility model is less, simple in construction, turn-on effect is good, can avoid being there is, as when switching, the problem that time delay is cut-off by high pressure IGBT, the clearance distance of two curved ends can be conveniently adjusted by switching threaded rod, threaded the height that can arbitrarily regulate two curved ends so that both centers are on same straight line by the external screw thread of conductive supporting post bottom and installing plate, the switches at different levels on small impingement voltage generator are finally made to reach the effect synchronizing to trigger, and achieve the pulse voltage grade impulse voltage generator at the miniaturization of tens kilovolts to tens kilovolts, low to meet some electric pressures, the demand of low capacity impact test, facilitate carrying and measuring of small impingement voltage generator, considerably improve the work efficiency of measurement.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the partial sectional view of conductive supporting post in this utility model；
Fig. 3 is the structural representation of the small impingement voltage generator being provided with this utility model construction of switch.
Detailed description of the invention:
See figures.1.and.2, this small impingement voltage generator construction of switch, in order to by impulse voltage generator miniaturization, in the circuit of impulse voltage generator, there is no to adopt conventional major diameter ball gap as switch, but adopt the structure of similar ball gap as switch.It includes two sphere gap switches 1 and two conductive supporting posts 2, specifically adopting long is the copper rod of 10mm for 30mm, diameter, the curved end 12 that central angle is 60 °, the cambered surface that diameter is 10mm of maximum circle is used as sphere gap switch 1 in cambered surface is processed in its one end, the remainder of copper rod is processed into the cylinder that diameter is 3mm, the external screw thread being tapped with M3 outside cylinder is used as the switch threaded rod 11 of sphere gap switch 1, preparing two sphere gap switches 1 in this way, the volume of obtained sphere gap switch 1 is little；nullAdopting a root length again is 30mm、Diameter is the copper rod of 10mm，Half processing diameter is the through hole of 2.5mm thereon，Female thread at through hole inside fire attack M3 forms screwed hole 21，The external screw thread of M10 it is tapped with in its latter half，Prepare two conductive supporting posts 2 in this way，Again the switch threaded rod 12 of two sphere gap switches 1 is threadeded with the screwed hole 21 of two conductive supporting posts 2 respectively，It is assembled into the construction of switch of impulse voltage generator，Two conductive supporting posts 2 are fixed on the installing plate 3 of impulse voltage generator by the nut 4 adopting M10，And make two curved ends 12 adjacent，Such that it is able to be conveniently adjusted the height of sphere gap switch 1，The axis making two curved ends 12 is highly consistent，So it is possible not only to reduce the volume of whole construction of switch，And can more easily fix and regulate the clearance distance of two curved ends 12，Construction of switch at different levels is made to reach good net synchronization capability，The surge waveform Pass Test requirement produced during guarantee test.
With reference to Fig. 3, according to impulse voltage generator ultimate principle, designing a small impingement voltage generator, surge voltage amplitude is 12kV, and this generator is 6 level structures, and every grade of charging voltage is 2.5kV.The parameter of each element is as follows: protective resistance 13 is 200k Ω, and charging resistor 14 is 40k Ω, and main capacitance 16 is 4kV/0.1uF; damping resistance 17 is 15 Ω; wavefront resistance 18 is 10k Ω, and wave terminal resistance 19 is 5k Ω, and this generator can also increase progression further and obtain bigger pulse amplitude.During making, required components and parts are arranged on installing plate 3 and are connected with wire, first pressure regulator 9 is connected with 220V ac input end, testing transformer 10 is arranged on the right side of it, and testing transformer 10 is connected with the full bridge rectifier being made up of silicon stack 5 and is used as the importation of impulse voltage generator；Secondly spark switch 6, protective resistance 13, charging resistor 14, main capacitance 16, damping resistance 17 wire are connected to form first order structure, are arranged on the right side of rectification circuit；Again by charging resistor 14, construction of switch 15, main capacitance 16, damping resistance 17 wire is connected to form second level structure, it is arranged on the right side of first order structure, mode is installed to the 6th level structure using the main part as impulse voltage generator according to this, finally construction of switch 15, wavefront resistance 18, wave terminal resistance 19 are connected with wire and are arranged on the rightmost side using the output part as impulse voltage generator, thus being assembled into complete impulse voltage generator.
In the process that this small impingement voltage generator is debugged, in order to ensure high-voltage switch gear structure 15 can effectively intercept when charging to electric capacity at different levels and not breakdown, the spacing of the curved end 12 on two sphere gap switches 1 can be regulated by regulating the switch threaded rod 11 of sphere gap switch 1, the spacing making two curved ends 12 is at least more than 1mm, regulate the height of two conductive supporting posts 2 again through two nuts 4, and then make the center of two curved ends 12 be on same straight line.After spark switch 6 action, when the situation of the asynchronous triggering of switch at different levels occurs, regulate the spacing of two curved ends 12 by switching threaded rod 11, make construction of switch at different levels reach the effect of synchronous switching off.
During test operation: 220V alternating current is boosted to 2.5kV by pressure regulator 9 and testing transformer 10, full bridge rectifier is formed again by silicon stack 5, the main capacitance 16 of parallel connections at different levels is charged, after at full charge, Trigger Spark Switch 6, high-voltage switch gear structure 15 at different levels is made to synchronize conducting successively, main capacitance 16 at different levels is made to become discharged in series state from charged in parallel state, the pulse voltage amplitude produced is electric capacity charging voltage sums at different levels, under the effect of wavefront resistance 18 and wave terminal resistance 19, form the shock wave that test is required.
Claims (2)
1. a small impingement voltage generator construction of switch, it is characterized in that: include two sphere gap switches (1) and two conductive supporting posts (2), on two parallel installing plates (3) being located at impulse voltage generator of conductive supporting post (2), described sphere gap switch (1) includes switch threaded rod (11), the end of switch threaded rod (11) is provided with perpendicular curved end (12), described conductive supporting post (2) offers near upper end and switchs the screwed hole (21) that threaded rod (11) matches, two sphere gap switches (1) threaded with two conductive supporting posts (2) respectively through switch threaded rod (11), the curved end (12) connecting latter two sphere gap switch (1) is adjacent.
2. small impingement voltage generator construction of switch as claimed in claim 1 a kind of, it is characterised in that: described conductive supporting post (2), and is attached fixing with nut (4) for threadeding with installing plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620189594.XU CN205384299U (en) | 2016-03-11 | 2016-03-11 | Small -size switch structure for impulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620189594.XU CN205384299U (en) | 2016-03-11 | 2016-03-11 | Small -size switch structure for impulse generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205384299U true CN205384299U (en) | 2016-07-13 |
Family
ID=56351921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620189594.XU Expired - Fee Related CN205384299U (en) | 2016-03-11 | 2016-03-11 | Small -size switch structure for impulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205384299U (en) |
-
2016
- 2016-03-11 CN CN201620189594.XU patent/CN205384299U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 Termination date: 20170311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |