CN104048569B - A kind of Microsecond grade coaxial type synchronous control switch - Google Patents
A kind of Microsecond grade coaxial type synchronous control switch Download PDFInfo
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- CN104048569B CN104048569B CN201410235107.4A CN201410235107A CN104048569B CN 104048569 B CN104048569 B CN 104048569B CN 201410235107 A CN201410235107 A CN 201410235107A CN 104048569 B CN104048569 B CN 104048569B
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- ring
- bonnet
- protecgulum
- primacord
- control switch
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Abstract
The present invention relates to a kind of Microsecond grade coaxial type synchronous control switch, it is characterized in that: the two ends of insulating body are formed with protecgulum and bonnet respectively and are threaded, and are provided with interior pipe between protecgulum and bonnet; Protecgulum is close to output connection ring, and output connection ring is close to insulation tube, and insulation tube extends in insertion bonnet; Input wires ring is close to bonnet, inner ring surface and insulation tube, and outer ring surface and insulating body form tight fit; Primacord is by protecgulum, interior pipe and bonnet, and two ends are threaded fixing with protecgulum and bonnet by dead ring respectively.A kind of Microsecond grade coaxial type synchronous control switch that the present invention proposes, is fired by primacord, and in driving, copper pipe expands, and destroys insulating materials, makes the closely knit contact of inside and outside copper pipe, realizes the device that switch is closed.This switch can be used for controlling the closed of different capabilities seed corona discharge switch in explosive magnetic compression generator, and reliability is high, resistance to pressure good, closing time is short and price is low.
Description
Technical field
The invention belongs to synchronous control switch, be specifically related to a kind of Microsecond grade coaxial type synchronous control switch.
Background technology
In Pulse Power Techniques, explosive magnetic compression generator, owing to having the advantages such as energy density is large, volume is little, is a kind of high-power pulse source of extensive use.In the course of work of this generator, accurately control seed power switch and close and disconnects that to close the time interval closed be one of key technology with prizing.Primacord has that explosion velocity is high, energy is large, and not by the feature such as impact of stray electrical current and lightning induction, can meet in explosive magnetic compression generator work and disconnect the closed time requirement of closing to seed power switch and sled.Primacord fires not only can ignite column medicine, and the energy energy driving switch of its release closes, and adopts primacord time delay so in the delays time to control of explosive magnetic compression generator more.
In the different application of explosive magnetic compression generator, the capacity of seed power capacitor also has larger difference, in order to meet the seed power supply of different capabilities to the requirement of switch, so require before sled disconnection pass is closed, to be kept closed after seed power switch is closed, require that switch has larger withstand voltage properties simultaneously.
Following problem is brought in the design of synchro switch:
1, fired by primacord and realize the reliable closed of switch;
2, after switch closes, no longer disconnect;
3, switch will have enough highlands resistance to pressure (resistance to pressure is not less than 20KV) before closing.
Summary of the invention
The technical problem solved
In order to avoid the deficiencies in the prior art part, the present invention proposes a kind of Microsecond grade coaxial type synchronous control switch.
Technical scheme
A kind of Microsecond grade coaxial type synchronous control switch, is characterized in that comprising protecgulum 1, output connection ring 2, primacord 3, insulation tube 4, interior pipe 5, input wires ring 6, insulating body 7, bonnet 8 and dead ring 9; The center of insulating body 7 is provided with the step through-hole of different-diameter, and the two ends of insulating body 7 are formed with protecgulum 1 and bonnet 8 respectively and are threaded, and are provided with interior pipe 5 between protecgulum 1 and bonnet 8; Protecgulum 1 is close to output connection ring 2, and output connection ring 2 is close to insulation tube 4, and insulation tube 4 extends in insertion bonnet 8; Input wires ring 6 is close to bonnet 8, inner ring surface and insulation tube 4, and outer ring surface and insulating body 7 form tight fit; Primacord 3 is by protecgulum 1, interior pipe 5 and bonnet 8, and two ends are threaded fixing with protecgulum 1 and bonnet 2 by dead ring 9 respectively; External connecting hole is provided with at insulating body 7 position of output connection ring 2 and input wires ring 6; Described primacord 3 forms loose fit with insulation tube 4, interior pipe 5.
Described input wires ring 6 and output connection ring 2 are evenly provided with multiple circular hole along anchor ring.
Described circular hole is 4 circular holes.
Described Circularhole diameter is 5mm.
Described insulation tube 4 adopts stepped profile structure, and the one end be connected with output connection ring 2 is major diameter, and adopting two pitch circle arcs is excessively minor diameter.
The major diameter of described insulation tube 4 is 26mm, and minor diameter is 1mm.
Described interior pipe 5 adopts red copper material, and wall thickness is 2mm.
The external diameter of described primacord is not more than 5.5mm, explosion velocity is not less than 6500m/s, length Δ l=(T/4+t1-t2) u of primacord, wherein: t1 is the closing time needing synchro switch, u is the explosion velocity of primacord, t2 is that generator sled disconnects the closing time of closing, and T/4 is first 1/4 cycle of generator seed corona discharge.
Described input wires ring 6 and output connection ring 2 adopt brass.
Described insulating body 7 have employed nylon material.
Beneficial effect
A kind of Microsecond grade coaxial type synchronous control switch that the present invention proposes, is fired by primacord, and in driving, copper pipe expands, and destroys insulating materials, makes the closely knit contact of inside and outside copper pipe, realizes the device that switch is closed.This switch can be used for controlling the closed of different capabilities seed corona discharge switch in explosive magnetic compression generator, and reliability is high, resistance to pressure good, closing time is short and price is low.
According to coaxial type synchro switch development object, check in explosive magnetic compression generator test.According to the requirement of explosive magnetic compression generator seed power supply close switch, the present invention has following characteristics:
1, reliability is high, once ignite primacord, switch just can realize closed.Do not affect by stray electrical current or inductance etc., also not by the impact of General Mechanics behavior, be applicable to use in various complex environment;
2, switch is once closed, can ensure constant conduction, closes until sled disconnects closing.Be applicable to longer Large Copacity seed power supply various discharge time;
3, withstand voltage height, the withstand voltage of switch can reach 20KV, can meet the needs of general seed corona discharge switch;
4, closing time is short, can reach musec order.
Accompanying drawing explanation
Fig. 1: coaxial type synchro switch structure principle chart (left side is primacord leading-in end)
1. protecgulum, 2. output connection ring, 3. primacord, 4. insulation tube, 5. interior pipe, 6. input wires ring, 7. insulating body, 8. bonnet, 9. dead ring;
Fig. 2: inner tube structure figure
Fig. 3: access connecting ring structure chart
Fig. 4: insulating tube structure figure
Fig. 5: switch closes after-current source and explosive magnetic compression generator operating current
Detailed description of the invention
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
The embodiment of the present invention comprises protecgulum 1, output connection ring 2, primacord 3, insulation tube 4, interior pipe 5, input wires ring 6, insulating body 7, bonnet 8 and dead ring 9; The center of insulating body 7 is provided with the step through-hole of different-diameter, and the two ends of insulating body 7 are formed with protecgulum 1 and bonnet 8 respectively and are threaded, and are provided with interior pipe 5 between protecgulum 1 and bonnet 8; Protecgulum 1 is close to output connection ring 2, and output connection ring 2 is close to insulation tube 4, and insulation tube 4 extends in insertion bonnet 8; Input wires ring 6 is close to bonnet 8, inner ring surface and insulation tube 4, and outer ring surface and insulating body 7 form tight fit; Primacord 3 is by protecgulum 1, interior pipe 5 and bonnet 8, and two ends are threaded fixing with protecgulum 1 and bonnet 2 by dead ring 9 respectively; External connecting hole is provided with at insulating body 7 position of output connection ring 2 and input wires ring 6; Described primacord 3 forms loose fit with insulation tube 4, interior pipe 5.
Described input wires ring 6 and output connection ring 2 are evenly provided with 4 circular holes along anchor ring, and Circularhole diameter is 5mm.
Described insulation tube 4 adopts stepped profile structure, and one end diameter be connected with output connection ring 2 is 26mm, adopts the excessive diameter of two pitch circle arcs to be 1mm.
The external diameter of primacord is not more than 5.5mm, and explosion velocity is not less than 6500m/s.The red copper material that interior pipe 5 adopts ductility good, the brass that input wires ring 6 and output connection ring 2 adopt hardness larger, insulating body 7 have employed the good nylon material of resistance to pressure.Assembly method is: primacord is through the interior pipe of synchro switch, and one end connects detonating primer, and the other end connects the unit needing conducting.Synchro switch structure chart as shown in Figure 1.The course of work is: when cap sensitive primacord 3, primacord 3 fires pipe 5 in synchro switch, fire generation gases at high pressure, in driving, pipe 5 expands, and destroy interior pipe 5 and the insulating materials between input wires ring 6 and output connection ring 2, make primacord 3 (it is after firing, and is equivalent to one section of conductor) produce closely knit contact with input wires ring 6 with output connection ring 2, realize switch conduction.
In synchro switch, the wall thickness of pipe 5 adopts 2mm, and primacord 3 fires and can just drive its expansion damage insulating cylinder, and unlikely interior pipe 5 destroys, as shown in Figure 2.Input wires ring 6 and output connection ring 2 evenly open along anchor ring the prefabricated circular hole that 4 diameters are 5mm, when primacord 3 fire product drive in pipe 5 expand time, what hole and input and output connecting ring profile were formed run through face can effectively destroy insulation tube 4, interior pipe 5 is made to form projection along the pre-manufactured hole on two connecting rings, interior pipe 5 contacts with the closely knit of two connecting rings, ensure that primacord 3 and input wires ring 6 and output connection ring 2 conducting, and switch is once conducting, will not in disconnection, its structure is as shown in Figure 3.In order to prevent in delayed exploding process, insulation tube 4 and insulating body 7 are along insulation tube surface breakdown, and insulation tube adopts stepped profile structure, and adopts orthodrome excessive, increases distance between the two, as shown in Figure 4.Insulation tube wall thickness is 1mm, and ethics breakdown voltage is 100KV, can meet the requirement of withstand voltage of 1-20KV.
Installation relation: first protecgulum 1 and insulating body 7 are threaded, output connection ring 2 is close on the right of protecgulum 1, output connection ring 2 is close to insulation tube 4, inside insulation tube 4 and interior pipe 5 outside tight fit, outside with insulating body 7 inside and input wires ring 6 inside tight fit, outside input wires ring 6 and insulating body 7 inside tight fit, the right and bonnet 8 left side of input wires ring 6 are close to, bonnet 8 and insulating body 7 are threaded, two dead rings 9 in left and right are threaded with protecgulum 1 and bonnet 2 respectively, primacord 3 can be clamped make it to move, primacord 3 also with insulation tube 4, loose fit inside interior pipe 5, insulating body 7 is also threaded with output connection ring 2 and input wires ring 6 in the position of perforate respectively.
In using: first measure the closing time t1 (time that the end face that primacord fires synchro switch closes to switch) of synchro switch again according to explosion velocity u, the closing time t2 of generator sled disconnection pass and the first 1/4 cycle-T/4 of generator seed corona discharge of primacord.Determine length Δ l=(T/4+t1-t2) u of time delay primacord.
The length using primacord is l=Δ l+100+73mm, and namely sheared length is the primacord of l.Then primacord one end is connected detonating capsule to connect, the other end is through coaxial type synchro switch, and connect armature tube, the leading-in end end face of synchro switch aligns with the gauge point of primacord.
The high-voltage line of leading on coaxial type synchro switch is connected with the high pressure leading-in end of seed power supply high-pressure side and explosive magnetic compression generator respectively.After detonating primer, switch closes, and measures the operating current of switch closed path and explosive magnetic compression generator as shown in Figure 5.
Primacord explosion velocity is greater than 6500m/s, and namely unit millimeter fires the required time and is about 0.15 μ s, fires generation high temperature and high pressure gas by primacord, pipe undergoes rapid expansion in driving switch, destroys insulation tube, realizes switch conduction, closing time can reach musec order, can realize accurately closed.
Claims (9)
1. a Microsecond grade coaxial type synchronous control switch, is characterized in that comprising protecgulum (1), output connection ring (2), primacord (3), insulation tube (4), interior pipe (5), input wires ring (6), insulating body (7), bonnet (8) and dead ring (9); The center of insulating body (7) is provided with the step through-hole of different-diameter, the two ends of insulating body (7) are formed with protecgulum (1) and bonnet (8) respectively and are threaded, and are provided with interior pipe (5) between protecgulum (1) and bonnet (8); Protecgulum (1) is close to output connection ring (2), and output connection ring (2) is close to insulation tube (4), and insulation tube (4) extends in insertion bonnet (8); Input wires ring (6) is close to bonnet (8), inner ring surface and insulation tube (4), and outer ring surface and insulating body (7) form tight fit; Primacord (3) is by protecgulum (1), interior pipe (5) and bonnet (8), and two ends are threaded fixing with protecgulum (1) and bonnet (2) by dead ring (9) respectively; External connecting hole is provided with at insulating body (7) position of output connection ring (2) and input wires ring (6); Described primacord (3) and insulation tube (4), interior pipe (5) form loose fit.
2. Microsecond grade coaxial type synchronous control switch according to claim 1, is characterized in that: described input wires ring (6) and output connection ring (2) are evenly provided with multiple circular hole along anchor ring.
3. Microsecond grade coaxial type synchronous control switch according to claim 2, is characterized in that: described circular hole is 4 circular holes.
4. Microsecond grade coaxial type synchronous control switch according to Claims 2 or 3, is characterized in that: described Circularhole diameter is 5mm.
5. Microsecond grade coaxial type synchronous control switch according to claim 1, it is characterized in that: described insulation tube (4) adopts stepped profile structure, the one end be connected with output connection ring (2) is major diameter, and adopting two pitch circle arcs is excessively minor diameter.
6. Microsecond grade coaxial type synchronous control switch according to claim 1, is characterized in that: described interior pipe (5) adopts red copper material, and wall thickness is 2mm.
7. Microsecond grade coaxial type synchronous control switch according to claim 1, it is characterized in that: the external diameter of described primacord is not more than 5.5mm, explosion velocity is not less than 6500m/s, length Δ l=(T/4+t1-t2) u of primacord, wherein: t1 is the closing time needing synchro switch, u is the explosion velocity of primacord, and t2 is that generator sled disconnects the closing time of closing, and T/4 is first 1/4 cycle of generator seed corona discharge.
8. Microsecond grade coaxial type synchronous control switch according to claim 1, is characterized in that: described input wires ring (6) and output connection ring (2) adopt brass.
9. Microsecond grade coaxial type synchronous control switch according to claim 1, is characterized in that: described insulating body (7) have employed nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235107.4A CN104048569B (en) | 2014-05-29 | 2014-05-29 | A kind of Microsecond grade coaxial type synchronous control switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235107.4A CN104048569B (en) | 2014-05-29 | 2014-05-29 | A kind of Microsecond grade coaxial type synchronous control switch |
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| Publication Number | Publication Date |
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| CN104048569A CN104048569A (en) | 2014-09-17 |
| CN104048569B true CN104048569B (en) | 2015-09-23 |
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| CN201410235107.4A Active CN104048569B (en) | 2014-05-29 | 2014-05-29 | A kind of Microsecond grade coaxial type synchronous control switch |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104457456B (en) * | 2014-10-29 | 2016-02-24 | 北京机械设备研究所 | A kind of magnetic quick-fried primary pulse source discharge control device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1179548A (en) * | 1957-07-09 | 1959-05-26 | Charbonnages De France | Electrical network protection relays |
| DE2345196A1 (en) * | 1973-09-07 | 1975-03-20 | Univ Moskovsk | SWITCH WITH EXPLOSIVE EFFECT |
| CN202189730U (en) * | 2011-08-02 | 2012-04-11 | 上海速限开关有限公司 | Directional blasting cutting type rapid isolator |
| CN202183336U (en) * | 2011-08-02 | 2012-04-04 | 上海速限开关有限公司 | Directional blasting cutting type rapid isolator |
| CN202996711U (en) * | 2012-12-23 | 2013-06-12 | 西安电子工程研究所 | Explosive synchronous switch |
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