CN110429925A - A kind of all solid state triggering isolation resistance - Google Patents
A kind of all solid state triggering isolation resistance Download PDFInfo
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- CN110429925A CN110429925A CN201910665125.9A CN201910665125A CN110429925A CN 110429925 A CN110429925 A CN 110429925A CN 201910665125 A CN201910665125 A CN 201910665125A CN 110429925 A CN110429925 A CN 110429925A
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- resistance
- solid state
- base body
- end cap
- state triggering
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C8/00—Non-adjustable resistors consisting of loose powdered or granular conducting, or powdered or granular semi-conducting material
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
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- Microelectronics & Electronic Packaging (AREA)
- Details Of Resistors (AREA)
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Abstract
The present invention provides a kind of all solid state triggering isolation resistance, solves that resistance stability existing for water resistance in existing primary pulse source is poor, breakdown easily occurs, damage sequence is serious, is mechanically fixed the problems such as difficult, thermal expansion coefficient is big.The all solid state triggering isolation resistance is designed using all solid stateization, has the characteristics that power capacity is high, high pressure resistant, resistance value is stable, easy for installation, good environmental adaptability.All solid state triggering isolation resistance includes resistance base body, two fingertip springs and two shielding end caps；One end of shielding end cap is provided with axial notch, and the cell wall of axial notch is connect with the radial end face of shielding end cap by arc surface；The both ends of resistance base body are inserted into respectively in the axial notch of shielding end cap, and radial ringed groove is provided on the cell wall of axial notch, and fingertip spring is mounted in radial ringed groove, and realization shielding end cap is electrically connected with resistance base body.
Description
Technical field
The present invention relates to pulse power devices, and in particular to a kind of all solid state triggering isolation resistance is applied to large-scale pulse
The triggering isolation in primary pulse source in power device.
Background technique
Fast linear type transformer driving source (FLTD) is a kind of novel driving source that can generate high voltage, high current,
Feature is that traditional pulse is generated to, compressed and shaped the disc that link is integrated in high 20cm to 35cm, diameter is less than 3.0m
In cavity, the pulse of electrical power of rising edge about 100ns is directly generated.The output current peak of single FLTD module up to 2.0MA,
Compared with traditional Marx combination multi-level water medium pulse compression molding technology, numerous advantages are embodied, it has also become next-generation big
Type driving source develops one of highly competititve technology.
The structure of FLTD module is as shown in Figure 1, primary pulse source is in parallel by multiple discharge paths, and each discharge paths are by two
The capacitor 25 of the positive and negative charging of branch and an electricity triggering gas switch 22 form, and the discharge loop of each discharge paths wraps magnetic core
28 1 circles, secondary are a metallic cylinder.Entire module is equivalent to primary by multiple single-turn circular coils parallel connections on circuit, and secondary is
One single-turn circular coil, when each discharge paths work asynchronously, secondary load approximate can be obtained and the consistent peak value of primary charging voltage
Voltage, and electric current is then N times (N is module discharge branch circuit parallel connection number) of single discharge paths electric current.FLTD module routine
Be broadly divided into two steps: the first step is by high-voltage charging resistance 21 and high-voltage charging cable 24 to each 25 DC charging of capacitor；The
Two step external circuit provide electric trigger signal, control the synchronous conducting of each electricity triggering gas switch 22.
Trigger process is as follows: circular ring type firing line 27 is provided on intermediate insulation disk 26, external trigger is touched by high pressure
Power generation cable 29 is connect with circular ring type firing line 27, and the trigger electrode of each electricity triggering gas switch 22 triggers resistance 23 by high pressure and connects
It is connected to circular ring type firing line 27.After module charging complete, external trigger generates trigger signal, and trigger signal is triggered by high pressure
Cable 29 is transmitted to circular ring type firing line 27, and trigger signal is angularly allocated by circular ring type firing line 27 again, and passes through height
Pressure triggering resistance 23 is applied to the trigger electrode of each electricity triggering gas switch 22, and then realizes the approximation of each electricity triggering gas switch
Synchronizing close.
By the above trigger process it is found that the synchronous discharge of multistage discharge cell triggers electricity by high pressure by external trigger pulse
Resistance 23 controls the electricity triggering gas switch 22 inside its unit and realizes, every grade of discharge cell at least needs 1 high pressure triggering resistance
23, therefore high pressure triggering 23 quantity of resistance needed for single primary pulse source, up to tens of even up to a hundred, job stability is straight
Connect the overall performance for determining primary pulse source, and one of the key factor that limitation pulse power device reliability is promoted.Therefore,
Carry out highly reliable novel high-pressure resistance to explore with important engineering application value.
For the design of primary pulse source high-power high voltage resistance, carries out numerous explorations both at home and abroad and studied, but by
Currently, failing the use for being detached from water resistance always (using certain conduction liquid as the resistance of medium).In J.R.Woodworth,
" the 810 kA linear transformer driver of Compact of the scholars such as W.E.Fowler, B.S.Stoltzfus
Cavity " (Physical Review Special Topic-Accelerator and Beams, 2011,14,
Pp.040401 a kind of fast linear type transformer driving source module of 20 discharge paths parallel connections, each discharge paths are proposed in)
Comprising triggering resistance, triggering resistance is made of the built-in conduction liquid of plastic flexible pipe, and grafting metal cap in hose both ends seals conduction liquid,
Metal cap connect (capacitor or switch) as electrical fitting with external component simultaneously.The advantages of this quasi-resistance is power capacity
Greatly, structure is simple, at low cost, but there are problems that following aspect in engineering practice: 1) resistance value is unstable；Water resistance is by being electrolysed
Matter is matched with pure water, and with the change of the conditions such as time of repose, environment temperature, electrolyte is easy to happen cohesion, is precipitated
Deng variation, and then lead to the change of water resistance resistance value；2) it is easy to happen breakdown；Water resistance is easy to be precipitated micro- under static conditions
Minute bubbles, and bubble dielectric constant only about the 1/81 of electrolyte, it is meant that its internal electric intensity is 81 times of electrolyte, part
Electric field is by Severe distortion, and then the resistance failure for causing bubble breakdown to cause；3) damage causes consequence serious；Usual primary pulse
Source is full of transformer oil medium, and after water resistance damage rupture, electrolyte can pollute the transformer oil in entire primary source cavity,
Cause huge economic loss and maintenance difficulties；4) it is mechanically fixed difficulty；It is cold along face length, heat expansion from installation convenience, increase
Contracting effect is it is contemplated that water resistance outer wall mostly uses plastic flexible pipe, in long-time use process, due to electrodynamic effect, is easy
Cause hose to deform, fracture of root is caused to even result in the insulation breakdown between positive and negative charging resistor；5) it expands with heat and contract with cold obvious；Electricity
Solution liquid thermal expansion coefficient is larger, and amplitude of expanding with heat and contract with cold during variation of ambient temperature is big, be easy to cause hose fracture or end
Portion's metal cap is detached from, and is caused the damage of resistance, is not available even more lower than 0 DEG C or under higher than 100 DEG C environment temperatures especially,
Directly limit the use environment in primary pulse source.
In conclusion high-tension resistive is one of the essential elements component in primary pulse source in large-scale pulse power device, though
It is all made of water resistance in right numerous primary pulse sources as triggering resistance, but there is clearly disadvantageous, seriously restricts just
The promotion of grade clock reliability.
Summary of the invention
The present invention provides a kind of all solid state triggering isolation resistance, solves resistance value existing for water resistance in existing primary pulse source
Stability is poor, breakdown easily occurs, damage sequence is serious, is mechanically fixed the problems such as difficult, thermal expansion coefficient is big.Triggering isolation electricity
Resistance is designed using all solid stateization, has the spies such as power capacity is high, high pressure resistant, resistance value is stable, easy for installation, good environmental adaptability
Point.
Technical proposal that the invention solves the above-mentioned problems is:
A kind of all solid state triggering isolation resistance, including resistance base body, two fingertip springs and two shielding end caps；The screen
The one end for covering end cap is provided with axial notch, and the cell wall of the axial notch and the radial end face of shielding end cap are connected by arc surface
It connects；The both ends of the resistance base body are inserted into respectively in the axial notch of shielding end cap, are provided on the cell wall of the axial notch
Radial ringed groove, the fingertip spring are mounted in radial ringed groove, and realization shielding end cap is electrically connected with resistance base body.
Further, the part of the resistance base body insertion shielding end cap is provided with metal-plated film layer.
Further, the metal-plated film layer is plated copper film layer, silver coating layer or golden film plating layer.
Further, the cross sectional shape of the radial ringed groove is trapezoidal, and the cross sectional shape of the fingertip spring is ellipse
It is round, it is therefore an objective to ensure to shield the excellent electric contact under the conditions of end cap and resistance base body grafting.
Further, the resistance base body is that insulating materials doping conductive material is suppressed.
Further, the resistance base body is ceramic doped graphite, ceramics doping aluminium powder is suppressed.
Further, the resistance base body is cylindrical structure or rectangular parallelepiped structure.
Further, the internal diameter of the fingertip spring is 0.8mm~1.0mm smaller than the radius of axial notch.
Further, the fingertip spring is spring made of beryllium copper material.
Further, the diameter of the resistance base body be 15mm, axial length 150mm.
Compared with prior art, the invention has the following advantages that
All solid state triggering isolation resistance of the invention is entity resistance, takes full advantage of entity resistance own characteristic (electricity
Feel low, power capacity is larger, resistance to voltage levels are higher), all solid stateization design of primary pulse source high-power high voltage resistance is realized,
The system scheme in primary pulse source in high-power high voltage resistive arrangement is proposed, solves the existing resistance of traditional water resistance
Value stability is poor, breakdown easily occurs, damage sequence is serious, is mechanically fixed the problems such as difficult, thermal expansion coefficient is big.The high-tension resistive
It is easy to industrialized mass production, effectively increases the reliability of the quasi-resistance, is the engineering practice of primary pulse source high-tension resistive
Provide important references.
Detailed description of the invention
Fig. 1 is existing FLTD modular structure schematic diagram；
Fig. 2 is the scheme of installation of all solid state triggering isolation resistance of the present invention；
Fig. 3 is the structural schematic diagram of all solid state triggering isolation resistance of the present invention.
Appended drawing reference: all solid state triggering isolation resistance of 1-, 2- charging resistor, 11- resistance base body, 12- fingertip spring, 13-
Shield end cap, 14- axial notch, the radial ringed groove of 15-, 16- metal-plated film layer, 21- high-voltage charging resistance, the triggering of 22- electricity
Gas switch, 23- high pressure triggering resistance, 24- high-voltage charging cable, 25- capacitor, 26- intermediate insulation disk, 27- firing line,
28- magnetic core, 29- high pressure trigger cable.
Specific embodiment
The contents of the present invention are described in further detail below in conjunction with the drawings and specific embodiments.
The present invention provides a kind of triggering isolation resistance, which is a kind of all solid stateization high-power high voltage resistance.In primary
In clock, triggering isolation resistance requires it to have the characteristics that low inductance, relatively high power capacity, high pressure resistant.According to the above feature,
The present invention is triggered isolation resistance and is designed using all solid stateization, to meet different function high-tension resistives to inductance, power capacity, pressure resistance
Equal parameter requests.
As shown in Fig. 2, all solid state triggering isolation resistance provided by the invention uses ceramic body resistance, its main feature is that inductance
It is low, high pressure resistant, although power capacity is fully able to tolerance trigger pulse energy not as good as filament winding resistance.During installation, all solid state
The one end for triggering isolation resistance is connect with the trigger electrode of electricity triggering gas switch 22, and the other end and Trig control signal source connect
It connects.
The sectional structure of all solid state triggering isolation resistance along its length is as shown in Figure 3 comprising resistance base body 11, two
Fingertip spring 12 and two shielding end caps 13.Resistance base body 11 is that insulating materials doping conductive material is suppressed, as ceramics are mixed
Miscellaneous graphite, ceramics doping aluminium powder etc., according to specifically used environmental requirement, can be made as various structures, such as cylindrical type, cuboid
Deng.(the insertion shielding end cap of resistance base body 11 of metal-plated film layer 16 is coated on 11 liang of end surfaces of resistance base body and end cylinder
13 part), for the electrical contact with external component, to enhance electric conductivity, it is preferably selected as copper, silver or golden material.Shield end
One end of cap 13 is provided with axial notch 14, and the cell wall of axial notch 14 and the end face turning of shielding end cap 13 are set as arc surface
(cell wall of axial notch 14 is connect with the radial end face of shielding end cap 13 by arc surface)；It inserts respectively at the both ends of resistance base body 11
Enter to shield in the axial notch 14 of end cap 13, radial ringed groove 15, fingertip spring 12 are provided on the cell wall of axial notch 14
It is mounted in radial ringed groove 15, for realizing being electrically connected for shielding end cap 13 and resistance base body 11.Specifically, radial ringed
The cross sectional shape of groove 15 can be to be trapezoidal, and the cross sectional shape of fingertip spring 12 is ellipse, it is therefore an objective to ensure to shield end cap 13 with
Excellent electric contact under the conditions of 11 grafting of resistance base body.
In actual processing, shielding end cap 13 is processed to be slightly larger than with the consistent groove in 11 interface of resistance base body, depth
The length of 11 end metal plated film of resistance base body, and edge carries out round corner treatment, with shielding insulation matrix and shielding end cap 13
The electric field of root binding site.Entity resistance of the present invention takes the measures such as 12 connection of fingertip spring, end profile shielding, it is ensured that resistance is whole
The resistance to voltage levels of body.
Below by taking fast linear type transformer driving source module as an example, carry out detailed.Fast linear type transformer driving source module
For half cellular construction as shown in Fig. 2, entire module is made of 32 discharge paths, each discharge paths include two capacitors
Device 25 and 1 electricity triggering gas switch 22, charging resistor 2 use filament winding resistance, be arranged in two branch electricity triggering gas switch it
Between, it is divided into two rows；All solid state triggering isolation resistance 1 uses ceramic body resistance, from the firing line connection on module ring wall
To the trigger electrode of electricity triggering gas switch 22.
All solid state triggering isolation resistance structure is as shown in figure 3, mainly by resistance base body 11, fingertip spring 12 and shielding end cap
13 three parts composition.Resistance base body 11 is that ceramic Mixed carbon materials are suppressed, whole cylindrical, diameter 15mm, axial direction
Length 150mm；11 both ends of the surface of resistance base body and end cylinder 10mm are handled apart from the interior metal coating that takes, and material is
Silver, 50 μm of thickness, to improve the contact characteristics between resistance base body 11 and fingertip spring 12.Shielding 13 length of end cap is
15mm, overall diameter 30mm, interior diameter 15.5mm, depth 12mm, distance shielding are provided with one at 13 position ring edge 4mm of end cap
Annular groove, section is trapezoidal, and trapezoidal upper bottom length is 4mm, bottom length is 6mm, is highly 3mm, for placing touching
Thrum spring 12；Fingertip spring 12 is beryllium copper material, silk diameter 1.0mm, and section is oval structure, long axis 5mm, short axle 4mm,
10 ° of inclination angle.Projecting height is about between 0.8mm to (fingertip spring 12 between 1.0mm after fingertip spring 12 is assembled to shielding end cap 13
Internal diameter be less than 14 radius 0.8mm~1.0mm of axial notch), to ensure shielding end cap 13 and resistance base body 14 under the conditions of grafting
Excellent electric contact.
Claims (10)
1. a kind of all solid state triggering isolation resistance, it is characterised in that: including resistance base body (11), two fingertip springs (12) and two
A shielding end cap (13)；
One end of shielding end cap (13) is provided with axial notch (14), the cell wall and shielding end cap of the axial notch (14)
(13) radial end face is connected by arc surface；
The both ends of the resistance base body (11) are inserted into respectively in the axial notch (14) of shielding end cap (13), the axial notch
(14) it being provided on cell wall radial ringed groove (15), the fingertip spring (12) is mounted in radial ringed groove (15),
Realization shielding end cap (13) is electrically connected with resistance base body (11).
2. all solid state triggering isolation resistance according to claim 1, it is characterised in that: resistance base body (11) the insertion screen
The part for covering end cap (13) is provided with metal-plated film layer (16).
3. all solid state triggering isolation resistance according to claim 2, it is characterised in that: the metal-plated film layer (16) is copper
Film plating layer, silver coating layer or golden film plating layer.
4. all solid state triggering isolation resistance according to claim 1 or 2 or 3, it is characterised in that: the radial ringed groove
(15) cross sectional shape be it is trapezoidal, the cross sectional shape of the fingertip spring (12) is ellipse.
5. all solid state triggering isolation resistance according to claim 4, it is characterised in that: the resistance base body (11) is insulation
Material doped conductive material is suppressed.
6. all solid state triggering isolation resistance according to claim 5, it is characterised in that: the resistance base body (11) is ceramics
Doped graphite, ceramics doping aluminium powder are suppressed.
7. all solid state triggering isolation resistance according to claim 6, it is characterised in that: the resistance base body (11) is cylinder
Shape structure or rectangular parallelepiped structure.
8. all solid state triggering isolation resistance according to claim 7, it is characterised in that: the internal diameter of the fingertip spring (12)
Radius than axial notch (14) is 0.8mm~1.0mm small.
9. all solid state triggering isolation resistance according to claim 8, it is characterised in that: the fingertip spring (12) is beryllium copper
Spring made of material.
10. all solid state triggering isolation resistance according to claim 9, it is characterised in that: the resistance base body (11) it is straight
Diameter is 15mm, axial length 150mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910665125.9A CN110429925B (en) | 2019-07-23 | 2019-07-23 | All-solid-state trigger isolation resistor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910665125.9A CN110429925B (en) | 2019-07-23 | 2019-07-23 | All-solid-state trigger isolation resistor |
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| CN110429925A true CN110429925A (en) | 2019-11-08 |
| CN110429925B CN110429925B (en) | 2023-01-17 |
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| CN201910665125.9A Active CN110429925B (en) | 2019-07-23 | 2019-07-23 | All-solid-state trigger isolation resistor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113992191A (en) * | 2021-11-01 | 2022-01-28 | 中国工程物理研究院流体物理研究所 | Square wave pulse generation module and square wave pulse power source |
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2019
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| US4041417A (en) * | 1975-06-19 | 1977-08-09 | Telefonaktiebolaget L M Ericsson | Low duty cycle pulse generator using two thyristors |
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| WO2012171221A1 (en) * | 2011-06-17 | 2012-12-20 | Littelfuse, Inc. | Thermal metal oxide varistor circuit protection device |
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| WO2016155320A1 (en) * | 2015-03-30 | 2016-10-06 | 华为技术有限公司 | Charger, terminal device, and charging system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113992191A (en) * | 2021-11-01 | 2022-01-28 | 中国工程物理研究院流体物理研究所 | Square wave pulse generation module and square wave pulse power source |
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