CN2164013Y - High-frequency high-power sympathetic cap detonator - Google Patents
High-frequency high-power sympathetic cap detonator Download PDFInfo
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- CN2164013Y CN2164013Y CN 93206014 CN93206014U CN2164013Y CN 2164013 Y CN2164013 Y CN 2164013Y CN 93206014 CN93206014 CN 93206014 CN 93206014 U CN93206014 U CN 93206014U CN 2164013 Y CN2164013 Y CN 2164013Y
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Abstract
The utility model relates to a high-frequency high-power influence exploder detonator. The utility model is characterized in that an elementary circuit only adopts a power device Q; in the detonating process, the power device Q can be switched on and switched off periodically under the action of a control signal S, and thus, the operating current I in the load and the control signal S can be enlarged and reduced synchronously. Thus, the high-frequency pulse direct current can be formed. The use of series connection of power devices can raise the output voltage of the detonator; the use of parallel connection can raise the output current, and the use of series and parallel connection or parallel and series connection can simultaneously raise the output voltage and the output current. Therefore, the power device can be a field effect power tube, an ordinary power transistor, a Darlington tube or a thyristor. Compared with the existing various high-frequency detonators, the utility model has low cost and large output power.
Description
The utility model relates to a kind of priming device of industrial detonator, is applicable to the industrial detonator that detonates and get angry by the magnetic ferrite magnetic core induction.
Industrial detonator by magnetic ferrite magnetic core induction ignition, adopt soft magnetic ferrite (being generally the MnZn material) with the ignition bridge silk of electric cap with draw payment to a porter and isolate, utilize the high frequency response characteristic of soft magnetic ferrite, the extraneous direct current of getting rid of non-detonation property effectively, the possibility of static and low frequency stray electrical current and induced-current unintended detonation electric cap, this detonator needs the big electric current of the high frequency of frequency of utilization more than 10KHZ when detonating.The utility model is exactly the new equipment that produces the big electric current of this high frequency, is called the high-frequency initiation device.It is one by direct current become to exchange the high frequency transient inverter circuit, be on the basis of capacitive blaster, to increase a high-frequency inversion link.Difference between the various high-frequency initiation devices mainly is the difference of inversion transformation technique.Existing English, add, day and the electromagnetic induction demolition starter developed of China, its output element all has transformer, employing be the common transformer coupled power amplification output of recommending.The power device of inversion link two arms is at base stage (or gate pole, controlled stage) alternate conduction under the effect of signal, coupling transformer former limit form a high frequency electric, and in secondary, produces a high frequency induction current by the coupling transformer magnetic core, export thereby obtain high frequency electric.The problem that exists is 1, because transformer and detonator magnetic core are the material of same type, be inductive promptly and the load of detonating is changing because of what of detonator amount by the formed blasting network of electromagnetic detonators, so resistance matching problem is very outstanding when adopting transformer coupled output.2, for realizing peak power output, must be in load circuit external capacitor, inductance value with the balance electromagnetic detonators, the peak value oscillating voltage of realizing or causing near series resonance often several times even tens times of operating voltage (the circuit quality factor is high more, multiplying power is also just high more), be easy to cause the inversion device breakdown.3, use coupling transformer to limit the peak power that may export, and energy loss is about 10%, 4, because adopt transformer, initiator volume, weight ratio are bigger, cost is also along with having increased.
The high-frequency initiation device of transless output can overcome many shortcomings that transformer output is arranged, as simplify the resistance matching problem of initiation net, improve delivery efficiency, transless coupling bridge-type output inverter circuit is made up of four working arms, under the base signal effect, alternate conduction in twos, thereby in initiation net, form the high frequency alternating current, in fact, though this inverting has been cancelled coupling transformer in output stage, but structure is still quite complicated, and cost is also unlike the low of transformer arranged.
In sum, common high-frequency initiation device is owing to complex circuit, and volume is big, and the cost height is very restricted in actual use.
For addressing the above problem, the utility model provides a kind of dither direct current to replace high-frequency ac to be used for the electromagnetic detonators that detonates.
Fig. 1 is circuit theory diagrams of the present utility model, Fig. 2 is integrated oscillator circuit figure, and Fig. 3 is two power tube series circuit figure, and Fig. 4 is two power tube parallel circuit figure, Fig. 5 is four power tube parallel series circuit figure, and Fig. 6 is the basic circuit diagram of common power triode.
By reference to the accompanying drawings circuit structure of the present utility model and embodiment are described below:
Among Fig. 1: Q is a power tube (being depicted as the field effect type power tube among the figure), R
LBy the inductive initiation net that electromagnetic detonators is formed, C is main energy storage capacitor, resistance R
1, diode D
1, D
2And piezo-resistance R
MYBe the protection device of power tube, R is a current-limiting resistance, and K has been a voltage flame proof switch, and S is the initiation control signal, when power tube Q adds higher-order of oscillation control signal S, after the main energy storage capacitor C charging, inserts initiation net R
L, press the K switch of detonating, electromagnetic detonators promptly detonates.
By load R
LThe frequency of electric current I be by the frequency decision of the oscillation control signal S of power tube Q, as seen from the figure, the direction of electric current I is immovable, but along with the conducting of power tube Q or shutoff and constantly increase or reduce, for example, Q is the remorse effect power tube in N ditch MOS field, when the grid source electrode added the enough big positive signal S of value, drain-source was extremely open-minded, and electric current I begins increase, and reach maximum rapidly, then, along with the change of grid source signal voltage S value and polarity, the drain-source utmost point turn-offs, electric current I reduces rapidly, the increase of electric current I with reduce frequency and the load characteristic that speed depends on control signal S.Power tube Q is conducting again and again, shutoff under the effect of control signal S, makes electric current I increase synchronously, reduce.Though electric current I does not change direction, from waveform a kind of dither direct current only, because of it is constantly increasing and is reducing, so have the character of alternation yet.Initiation net R
LIn when adding this electric current, can make the magnetic domain periodic variation orientation in the FERRITE CORE equally, thereby realize the energy transmission.
As can be seen from Figure 1, use the basic circuit of a power tube can make an initiator.This circuit recommends the power amplification inverter circuit with traditional transformer coupled formula or transless coupling bridge push pull power amplification inverter circuit is compared, and circuit structure is simplified greatly, and cost of manufacture also reduces significantly.
Being used to control power tube Q conducting is the general oscillator signal that exchanges with the control signal S of shutoff, can obtain by existing various oscillating circuits, and as the RC oscillating circuit, LC oscillating circuit or the like.
Fig. 2 is a kind of oscillating circuit, and it is by one 555 time base circuit and resistance R
1, R
2, R
3, capacitor C
1, C
2, C
3With triode T, signal transformer B forms, and output signal frequency is by parameters R
1, R
2And C
2Numerical value decision.Unconventional inverter output frequency of the present utility model can be 10 kilo hertzs to 1 megahertz, and output waveform dutycycle 1% to 99% is generally about 50%.
The waveform of circuit output current is with load R among Fig. 1
LCharacter and change.As load R
LDuring near pure resistive, waveform approaches square wave, as load R
LWhen being inductive, electric current rises slow, in turn off process, of short duration reversed peak occurs, and this is because power tube control voltage S descends suddenly, has risen to peaked load current I implementation and has forced shutoff to cause.The operating current I of this high-frequency initiation device output still has the character of direct current in some aspects, this is that the alternating current with conventional inverter circuit output that need particularly point out has the different place of essence, when being connected in series a lumped capacitance in the laod network, can't realize normal electric current output, it is general that erect image electric capacity cuts off galvanic situation.
The high-frequency initiation device of Fig. 1, output voltage (referring to that main energy storage capacitor C has maximum charging voltage among the figure) can reach more than 1000 volts, and perhaps output current (refers to by load R
LMaximum current) can reach ten to tens of ampere.Illustrate that initiating ability that initiator can reach can satisfy the requirement of most of engineering explosion scale.When blasting scale quite big, the detonator quantity that need once detonate simultaneously is many especially, the running parameter L(of perhaps single power tube Q such as maximum withstand voltage, when the maximum current capacity) not enough, can on the basis of circuit shown in Figure 1, expand, to improve its output voltage or output current, promptly improve the power output of the high-frequency initiation device made from this inverter circuit.
Fig. 3 is for using double-tube series to improve the circuit diagram of output voltage, power tube Q
1, Q
2Other suspension control signal S of branch
1, S
2Drive S
1, S
2Be fully synchronous, so Q
1, Q
2Action also be synchronous, i.e. conducting is simultaneously turn-offed simultaneously.After power tube turn-offed, the voltage on the main energy storage capacitor C was by Q
1, Q
2Bear respectively, so total withstand voltage raising of power tube, the operating voltage of permission has also improved, when the power tube of series connection more than three or three, and total withstand voltage can being further enhanced.For obtaining bigger output current, can be with many power tube parallel connections.Shown in Figure 4 is that two-tube parallel connection is with the situation with one times of current capacity expansion, power tube Q
1, Q
2Grid link to each other grid and source electrode shared control signals S.Under this same signal effect, Q
1With Q
2Action be fully synchronous, output current I is divided into I
1With I
2Pass through Q respectively
1, Q
2, when the parameter of two power tubes is identical, I
1=I
2, the phase place unanimity, so during related two identical pipes, can make one times of the current expansion of output, when the power tube more than three or three in parallel, total current capacity can be further expanded.For improving output voltage and output current simultaneously, can row be in parallel again on the basis of multitube series connection, or row series connection again on the basis of multitube association, form the multitube connection in series-parallel or and the series connection output battle array of synchronization action.Fig. 5 is Q in parallel
1, Q
2With Q in parallel
3, Q
4Carry out the situation of tandem working, Q
1And Q
2Shared control signals S
1, Q
3And Q
4Shared control signals S
2, and S
1, S
2Be synchronous, under the control of these two synchronizing signals, four power tube Q
1～Q
4Synchronization action, main energy storage capacitor voltage V is respectively V
1And V
2, by the Q of parallel connection
1, Q
2Bear V
1, by the Q of parallel connection
3, Q
4Bear V
2Output current I is respectively I
1, I
2, divide to flow into Q
1～Q
3And Q
2～Q
4When using power tube more than six or six and series connection or connection in series-parallel, can further improve output voltage and output current.Utilize the circuit production high-frequency initiation device after the utility model is expanded, can under the prerequisite of volume that does not significantly increase initiator and cost, increase substantially its power output.Test shows that two common VMOS fet power pipes of use in parallel are the high-frequency initiation device that core is made with it, and the power ratio of detonating domestic prominent transformer type high-power high-frequency initiator has at present also improved more than 3 times.And bulking value only is the latter's 1/3rd, and manufacturing cost then is its 1/3rd to 1/5th.
In Fig. 3, expanded circuit shown in Figure 5, need use two synchronous control signal S simultaneously
1, S
2, at this moment as long as in oscillating circuit shown in Figure 2 with the winding N of the signal transformer side of paying
2It is identical to change the number of turn into, two windings that polarity is identical get final product, in like manner, when need using plural synchronous control signal, also can be on the basis of oscillating circuit shown in Figure 1, further increase the winding number of signal transformer, adopt the power field effect pipe of other type, perhaps use common pliotron, high-power darlington pipe and controllable silicon, all can obtain actual effect,, very easily realize signal controlling because power field effect pipe belongs to voltage control device, the cost of used control circuit is low, volume is little, is to be used for comparatively ideal power tube of the present utility model, common power triode, Darlington transistor and controllable silicon all belong to current control device, control circuit is slightly complicated, and cost is also higher.The high-frequency initiation device of Fig. 6 for using a common power triode to make, wherein Q is used pliotron, C
bBe base capacity, R
eBe emitter resistance, be connected in base stage and emitter stage, and the piezo-resistance R between the collector and emitter
MYBe to protect internal resistance R, the button K that detonates, load R as triode
LWith the same Fig. 1 of main energy storage capacitor C, the using method of high-power darlington pipe and common power triode is close, and adopt silicon controlled high-frequency initiation device, and the control circuit more complicated, its operation principle is identical with the high-frequency initiation device of effect and aforementioned various power tube mades.
When using this high-frequency initiation device, the charging method of main energy storage capacitor C can be used prior art, as the main energy storage capacitor charging of level after the rectification of boosting with industrial-frequency alternating current, perhaps uses dry cell, and battery boosts through vibration, gives main energy storage capacitor charging after the rectification.All electric elements are arranged on the printed circuit board (PCB), are loaded in the rectangle housing.
Below introduce two embodiment of the present utility model:
Embodiment 2: power tube Q among Fig. 4
1, Q
2Be BUZ381 type N ditch VMOS fet power pipe, load R
LBe 30 generating magnetic detonators, every meter 2 * 2 meters iron payment to a porter, reaction magnetic ring is 5 * 2.5 * 3(external diameter * internal diameter * thickness) millimeter, turn ratio 5:3,0.36 ampere of detonator firing current.Iron payment to a porter electromagnetic detonators is because the influence of big inductance and high frequency kelvin effect is a class electromagnetic detonators that very is difficult to detonate, and domestic prominent magnetic induction initiator also can only this detonator of reliable initiation 10 at present, in the test of present embodiment, and load R
LThe direct current all-in resistance be 70 ohm, inner current-limiting resistance R is 25 ohm, 500 volts of main energy storage capacitor C charging voltages, 55 kilo hertzs of sesames of power tube grid source class oscillation control signal, main capacitance C charging is after the power tube starting of oscillation, press the button K that detonates, 30 whole reliable initiations of iron payment to a porter electromagnetic detonators in the network.
The utility model has the advantages that: 1, owing to utilize the high frequency response characteristic of soft magnetic ferrite, the extraneous direct current of effectively getting rid of non-detonation property, the possibility of the unintended detonation electric caps such as static, thus safe and reliable, 2, line construction is simple, easy to manufacture, cost is low, and 3, volume is little, in light weight, power output is big, and applicability is strong.
Claims (8)
1, a kind of high-frequency high-power influence exploder initiator; all electric elements are arranged on the printed circuit board (PCB); be arranged in the rectangle housing; it is characterized in that; the input of higher-order of oscillation control signal (S) the ingoing power pipe (Q) that produces by oscillator; power tube (Q) conducting or shutoff, the main capacitance (C) that is connected initiator charges, and is connected the protecting component resistance (R of power tube (Q) input
1), two pipe (D
1) and (D
2) and be connected the piezo-resistance (R of power tube (Q) output
My), current-limiting resistance (R), switch (K), initiation net (R
L) produce the electric current (I) of a dither direct current (not changing direction) in the loop formed, when switch (K) when being in closed condition, electric current (I) flows through initiation net (R
L), detonator promptly detonates.
By the described initiator of claim 1, it is characterized in that 2, power tube (Q) is the power tube of two or two above same models of series connection.
By the described initiator of claim 1, it is characterized in that 3, power tube (Q) is the power tube of two or two above same models of parallel connection.
4,, it is characterized in that power tube (Q) is connection in series-parallel or and the power tube of four or four above same models of series connection by the described initiator of claim 1.
5, by the described initiator of claim 1 to 4, it is characterized in that the power tube in the circuit (Q) is the field effect type power transistor.
6, by the described initiator of claim 1 to 4, it is characterized in that the power tube in the circuit (Q) is a Darlington hybrid power transistor.
7, by the described initiator of claim 1 to 4, it is characterized in that the power tube in the circuit (Q) is the common power triode.
8, by the described initiator of claim 1 to 4, it is characterized in that the power tube in the circuit (Q) is a silicon controlled rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93206014 CN2164013Y (en) | 1993-03-18 | 1993-03-18 | High-frequency high-power sympathetic cap detonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93206014 CN2164013Y (en) | 1993-03-18 | 1993-03-18 | High-frequency high-power sympathetic cap detonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2164013Y true CN2164013Y (en) | 1994-05-04 |
Family
ID=33789131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93206014 Expired - Fee Related CN2164013Y (en) | 1993-03-18 | 1993-03-18 | High-frequency high-power sympathetic cap detonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2164013Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062658C (en) * | 1996-02-29 | 2001-02-28 | 胜利石油管理局测井公司 | Multi-stage self controlling safety exploder |
| CN100491893C (en) * | 2002-04-12 | 2009-05-27 | 中国科学院力学研究所 | Method and device for direct detonating high-energy explosive |
| CN101813442A (en) * | 2009-08-20 | 2010-08-25 | 北京维深数码科技有限公司 | Wireless detonator, explosive device and blasting method |
| RU204844U1 (en) * | 2020-07-03 | 2021-06-15 | Акционерное общество "Научно-производственное объединение "Курганприбор" | Electric initiation device for fuses |
-
1993
- 1993-03-18 CN CN 93206014 patent/CN2164013Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062658C (en) * | 1996-02-29 | 2001-02-28 | 胜利石油管理局测井公司 | Multi-stage self controlling safety exploder |
| CN100491893C (en) * | 2002-04-12 | 2009-05-27 | 中国科学院力学研究所 | Method and device for direct detonating high-energy explosive |
| CN101813442A (en) * | 2009-08-20 | 2010-08-25 | 北京维深数码科技有限公司 | Wireless detonator, explosive device and blasting method |
| RU204844U1 (en) * | 2020-07-03 | 2021-06-15 | Акционерное общество "Научно-производственное объединение "Курганприбор" | Electric initiation device for fuses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |