CN202797605U - Secondary discharge switch - Google Patents
Secondary discharge switch Download PDFInfo
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- CN202797605U CN202797605U CN 201220541004 CN201220541004U CN202797605U CN 202797605 U CN202797605 U CN 202797605U CN 201220541004 CN201220541004 CN 201220541004 CN 201220541004 U CN201220541004 U CN 201220541004U CN 202797605 U CN202797605 U CN 202797605U
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- discharge switch
- secondary discharge
- ribbon feeder
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Abstract
The utility model discloses a secondary discharge switch, comprising a parallel-transmission-line upper electrode plate, a parallel-transmission-line lower electrode plate and an insulating thin film, wherein the parallel-transmission-line upper electrode plate and the parallel-transmission-line lower electrode plate are respectively connected to two electrodes of a load, and the parallel-transmission-line upper electrode plate is connected with a target chamber through a switch body, a secondary discharge switch electrode and a disk transition plate, all of which are connected in sequence. According to the utility model, the original discharge current rise time is shortened, so that an initial current peak value of a load end can be reduced to make the load end acquire a discharge current curve, which is initially concave downwards and is different from a sine rising current curve, and thus, the design of a physical experiment sample is facilitated in a better way; and the secondary discharge switch is convenient to install and detach due to a component type structure, and is easy to realize and replace.
Description
Technical field
The utility model relates to a kind of discharge switch, specifically a kind of secondary discharge switch in a kind of strong magnetic pressure oblique wave charger in reference and dynamic high-pressure science and technology, Pulse Power Techniques field.
Background technology
Dynamic behavior and the complicated phenomenon thereof of material are the important research directions of the subjects such as dynamic high-pressure science and technology, Condensed Matter Physics, shock dynamics under the research extreme condition.For a long time, its main charger and technology have explosive detonation driving, firsts and seconds Gas Gun, electric blasting and Laser Driven etc.What these chargers and technology realized mainly is that a kind of impact compress loads, in the solid material sample, produce the shock wave of a strong discontinuity surface, sample after the compression is in a high temperature, high pressure conditions, the characteristics of this loading are that on-load pressure is from several GPa to number TPa, the temperature rise of the above sample of hundred lucky handkerchief pressure is opened to tens thousand of by thousand and is opened, even higher, sample is easy to be in molten state.
For other zone of research material phase space state (high pressure, low temperature, for the Hugoniot state of impact compress, be referred to as to depart from the Hugoniot state) characteristic, over past ten years, a kind of novel compression method is suggested, and namely accurate isentropic Compression loads.Current, can realize that the accurate isentropic Compression loading technique of solid material has magnetic to drive accurate isentropic Compression, the accurate isentropic Compression of Laser Driven, density gradient striker technology, the detonation product expansion accurate isentropic Compression of unloading and ramp generator etc.At present, the Development Technology of main flow mainly is that first three kind is that magnetic drives accurate isentropic Compression, the accurate isentropic Compression of Laser Driven and density gradient striker technology.The three respectively has characteristics, the accurate isentropic Compression of Laser Driven is to utilize the laser air reservoir film of directly ablating to produce high pressure plasma act on the target sample after vacuum gap expands, or laser converges at, and gold blackbody radial chamber generation x ray acts on the target sample after the even cunning of cavity or the air reservoir film of ablating again produces high pressure plasma through vacuum gap expansion and sample, the rise time of this on-load pressure ripple is shorter, is generally 10-30ns.Density gradient striker technology mainly is based on a high speed density gradient striker bump of two-stage light gas gun emission target, in target, produce a rise time and be the on-load pressure ripple about 1ms, reason owing to impedance matching, this pressure wave has the shock wave of individual Initial Jump usually, and this initial shock wave can produce an initial temperature rise in the target sample.And magnetic to drive accurate isentropic Compression be that the time dependent pulse high current that relies on experimental provision to produce the interact magnetic pressure (Lorentz force) of generation of load electrode and the induced field of self of opposite direction of flowing through acts on the loading electrode surface, propagate along its thickness direction, act in the material sample.This magnetic pressure rise time is 300ns～800ns, and temporal evolution smoothly rises, and is a kind of comparatively desirable accurate isentropic Compression approach.
Be engaged in the world the country that magnetic drives accurate isentropic Compression experimental provision and method research and mainly contain a few countries such as the U.S., France and Britain, domestic only have Fluid Physics Inst., China Engineering Physics Academy being engaged in relevant apparatus and method research.Representational device mainly is divided three classes, and a class is that U.S. Los Alamos laboratory and Russian institute in kind are the plate blast magnetic compression strong current generator of representative; Another kind of be the Z/ZR in inferior laboratory, the U.S. Holy Land and China Physics Institute's fluid physics research institute at the large-scale plants such as PTS of building, realize first that wherein magnetic drives the accurate isentropic Compression in plane and finishes at the Z device; The 3rd class is the pulse power device based on the energy storage of capacitor group, parallel-plate transmission and solid film insulation of so far inferior laboratory, French CE G weapon research center, the U.S. Holy Land, Washington State University and the development of China Physics Institute's fluid physics research institute of calendar year 2001, is building such as VELOCE, Asia, the GENESIS(Holy Land), GEPI, CEPAGE, CQ-1.5 and CQ-4 etc.
The utility model content
The purpose of this utility model is to provide a kind of secondary discharge switch, be applicable to strong magnetic pressure oblique wave charger, a kind of large electric current experimental provision that utilizes Pulse Power Techniques to develop realizes that the oblique wave of solid material sample loads (accurate isentropic Compression), the dynamic behavior of research material.
The purpose of this utility model is achieved through the following technical solutions:
A kind of secondary discharge switch, comprise ribbon feeder electric pole plate, ribbon feeder lower electrode plate and insulation film, ribbon feeder electric pole plate and ribbon feeder lower electrode plate are connected to respectively load the two poles of the earth, and described ribbon feeder electric pole plate is connected with target chamber by Switch main body, secondary discharge switch electrode, the excessive plate of disk that connects successively.Ribbon feeder electric pole plate and ribbon feeder lower electrode plate are parallel to each other, being provided with insulation film in the middle of it is used for insulating isolated, ribbon feeder lower electrode plate wherein extremely links to each other with one of load by link, simultaneously, the ribbon feeder electric pole plate passes through Switch main body, the secondary discharge switch electrode, the excessive plate of disk is connected with target chamber, target chamber is as another extraction pole of load, after the Switch main body conducting, the large function of current is on load the two poles of the earth, be used for the research physical property, in target chamber and cylindrical shape, between the electrode insulating cylinder is set, be used for the insulation property between maintenance the two poles of the earth, secondary discharge switch and sharpening capacitor device are installed in the discharge loop of strong magnetic pressure oblique wave charger, mainly be for the steepness discharge current waveform, originally the discharging current rise time (being first 1/4th cycle) shortens, but the sharpening capacitor device is in the also effect of its shunting of discharge initial stage simultaneously, the electric current that the energy storage capacitor of front end discharges is to the sharpening capacitor device group charging of rear end, can suitably reduce like this initial current peak value of load end, so that load end obtains one initially to recessed discharge current curves, be different from the sinusoidal current curve that rises, so more be conducive to the design of Physical Experiment sample.
Described Switch main body comprises organic glass shell, and middle transition ball electrode and track electrode are installed in the cavity in the polymethyl methacrylate housing, and described orbit motor is connected with the ribbon feeder electric pole plate by L shaped battery lead plate.Further, Switch main body comprises organic glass shell, middle transition ball electrode is installed in the cavity in the polymethyl methacrylate housing, and track electrode, form voltage self breakdown discharge mode of operation, when energy-storage pulsed capacitor by elementary discharge switch conducting discharging time, electromagnetic wave transmits to the back-end through the ribbon feeder electric pole plate, form a time dependent high voltage U (t) at the track electrode, the track electrode of the secondary discharge switch other end is in earth potential, when voltage is increased to a certain value, gap between the track electrode and gas insufficient pressure are when bearing this voltage, just puncture, the conducting discharge, so, by spacing and the gaseous species between middle transition ball electrode and the track electrode in the adjustment polymethyl methacrylate housing, and gas pressure intensity is regulated sub-breakdown time.
Described ribbon feeder lower electrode plate is connected with electrode in the cylindrical shape by cylindrical electrode, between cylindrical electrode and the excessive plate of disk insulating cover is installed.Further, the structure of assembly type is convenient to installation and removal, changes easily.
The utility model compared with prior art has following advantage and beneficial effect:
A kind of secondary discharge switch of 1 the utility model, secondary discharge switch and sharpening capacitor device are installed in the discharge loop of strong magnetic pressure oblique wave charger, mainly be for the steepness discharge current waveform, originally the discharging current rise time (being first 1/4th cycle) shortens, but the sharpening capacitor device is in the also effect of its shunting of discharge initial stage simultaneously, the electric current that the energy storage capacitor of front end discharges is to the sharpening capacitor device group charging of rear end, can suitably reduce like this initial current peak value of load end, so that load end obtains one initially to recessed discharge current curves, be different from the sinusoidal current curve that rises, so more be conducive to the design of Physical Experiment sample;
A kind of secondary discharge switch of 2 the utility model, when voltage is increased to a certain value, gap between the track electrode and gas insufficient pressure are when bearing this voltage, just puncture, the conducting discharge, so, regulate sub-breakdown time by the spacing between middle transition ball electrode and the track electrode and gaseous species and gas pressure intensity in the adjustment polymethyl methacrylate housing;
A kind of secondary discharge switch of 3 the utility model, the structure of assembly type are convenient to installation and removal, are easy to realize, change easily.
Description of drawings
Fig. 1 is partly cut-away's structural representation that the utility model uses state.
Mark and corresponding parts title in the accompanying drawing:
19-ribbon feeder electric pole plate, 20-insulation film, 21-ribbon feeder lower electrode plate, the 32-target chamber, 38-insulating cylinder, electrode in the 39-cylindrical shape, the 40-cylindrical electrode, the 41-insulating cover, the excessive plate of 42-disk, 43-secondary discharge switch electrode, 44-polymethyl methacrylate housing, 45-middle transition ball electrode, 46-orbit motor, 47-L shape battery lead plate.
Embodiment
The utility model is described in further detail below in conjunction with embodiment, but execution mode of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, a kind of secondary discharge switch of the utility model comprises the ribbon feeder electric pole plate 19 and ribbon feeder lower electrode plate 21 that are parallel to each other, is provided with insulation film 20 in the middle of it and is used for insulating isolated; Ribbon feeder lower electrode plate 21 is connected with electrode 39 in the cylindrical shape by cylindrical electrode 40, between cylindrical electrode 40 and the excessive plate 42 of disk insulating cover 41 is installed; Simultaneously, ribbon feeder electric pole plate 19 passes through Switch main body, secondary discharge switch electrode 43, the excessive plate 42 of disk is connected with target chamber 32, target chamber 32 is as another extraction pole of load, after the Switch main body conducting, the large function of current is on load the two poles of the earth, be used for the research physical property, insulating cylinder 38 is set between the electrode 39 in target chamber 32 and cylindrical shape, be used for the insulation property between maintenance the two poles of the earth, wherein Switch main body comprises organic glass shell 44, middle transition ball electrode 45 is installed in the cavity in polymethyl methacrylate housing 44, and track electrode 46, form voltage self breakdown discharge mode of operation, orbit motor 46 is connected with ribbon feeder electric pole plate 19 by L shaped battery lead plate 47.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, any simple modification, the equivalent variations on every foundation technical spirit of the present utility model above embodiment done all fall within the protection range of the present utility model.
Claims (3)
1. secondary discharge switch, comprise ribbon feeder electric pole plate (19), ribbon feeder lower electrode plate (21) and insulation film (20), ribbon feeder electric pole plate (19) is connected to respectively load the two poles of the earth with ribbon feeder lower electrode plate (21), it is characterized in that: described ribbon feeder electric pole plate (19) is connected with target chamber (32) by Switch main body, secondary discharge switch electrode (43), the excessive plate of disk (42) that connects successively.
2. a kind of secondary discharge switch according to claim 1, it is characterized in that: described Switch main body comprises organic glass shell (44), middle transition ball electrode (45) and track electrode (46) are installed in the cavity in polymethyl methacrylate housing (44), and described orbit motor (46) is connected with ribbon feeder electric pole plate (19) by L shaped battery lead plate (47).
3. a kind of secondary discharge switch according to claim 1 and 2, it is characterized in that: described ribbon feeder lower electrode plate (21) is connected with electrode (39) in the cylindrical shape by cylindrical electrode (40), between cylindrical electrode (40) and the excessive plate of disk (42) insulating cover (41) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220541004 CN202797605U (en) | 2012-10-22 | 2012-10-22 | Secondary discharge switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220541004 CN202797605U (en) | 2012-10-22 | 2012-10-22 | Secondary discharge switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202797605U true CN202797605U (en) | 2013-03-13 |
Family
ID=47824791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220541004 Expired - Lifetime CN202797605U (en) | 2012-10-22 | 2012-10-22 | Secondary discharge switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202797605U (en) |
-
2012
- 2012-10-22 CN CN 201220541004 patent/CN202797605U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |