CN201210034Y

CN201210034Y - Electrostatic ignition explosive initiator for electric fuse

Info

Publication number: CN201210034Y
Application number: CNU2008200123660U
Authority: CN
Inventors: 张连山
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-23
Filing date: 2008-04-23
Publication date: 2009-03-18
Anticipated expiration: 2018-04-23

Abstract

The utility model discloses an electrostatic ignition detonating instrument of an electric initiating explosive device, comprising a charging circuit which consists of a power transformer T1 and a rectifier bridge D1, a direct current power which consists of a storage battery E, a generator triode BG and a high-frequency transformer T2, and an electrostatic storage/releasing device which consists of a plurality of polar capacitors in series. The charging circuit charges the E when raising a switch K2, and the E supplies power to the generator triode BG and the high-frequency transformer T2 when the switch K2 is pressed; at the time, the T2 inputs the direct current which generates high-frequency pulse after rectified to charge a capacitor unit Cn. When charging to the needed potential, an ignition switch K3 button is pressed and all the electric initiating explosive devices in series are ignited or detonated. The electrostatic ignition detonating instrument selects the ignition switch with high pressure resistance, reduces the number of contact points to be the minimum and solves the problems of energy loss, contact point sintering and the like, which are caused when multiple contact points reverse the direction. Simultaneously, a passive carrying type and an active fixed type are integrated into a body, thus having convenient use.

Description

The static of the electric spark workpiece instrument that detonates that ignites

One, technical field

The utility model relates to a kind of instrument that ignites or detonate of electric spark workpiece.

Two, background technology

The existing device that can ignite 100 priming systems of connecting has the disclosed KJ level of Chinese patent ZL2211582.X static discharge device, and it is divided into passive portable type and active fixed two types.It is to have adopted the polar capacitor series connection group of two groups of 6KV to carry out charged in parallel, the circuit form that series connection is got angry.Three coaxial reversing switches are arranged in portable device; Two multijunction contactors are arranged in stationary installation.Because each contact of coaxial reversing switch is difficult to accomplish fully synchronously closed and disconnected, two series capacitor bank are transferred to by parallel connection in the process of series connection and easily produce spark, not only make the output energy lossy, and exist the contact sintering phenomenon.The charge in batteries of passive in addition portable type igniter must be joined constant current charger in addition, and the operation of charging can not be carried out at any time.

Three, summary of the invention

The objective of the invention is in order to improve and improve the deficiency of existing KJ level static discharge device, a kind of static of the electric spark workpiece instrument that detonates that ignites is provided, it can either avoid sparking, contact sintering phenomenon in the switch operation, and the priming device that simultaneously static of passive portable type and active fixed electric spark workpiece ignited is integrated.

The technical solution adopted in the utility model is: the ignite instrument that detonates of the static of electric spark workpiece comprises static storage/releasing device, dc source and charging circuit, it is characterized in that: static storage/releasing device is to be composed in series capacitor group Cn by n polar capacitor, shunt voltage Table V on the capacitor of forming Cn, the output head anode of dc source connects the Cn positive pole, the negative pole of output end of dc source connects the Cn negative pole, the Cn positive pole connects output wiring terminal through button switch K 3, and the Cn negative pole connects another output wiring terminal.

The high-pressure pulse direct current source is made of batteries E, generator triode BG, high frequency transformer T2 and commutation diode D2, the E positive pole connects the T2 intermediate point of polar curve circle just through the following contact of reversing switch K2, the E negative pole connects the emitter stage of BG, the base series resistor R of BG connects the upper end of T2 primary coil line, the colelctor electrode of BG connects the T2 lower end of polar curve circle just, and the T2 secondary coil meets capacitor group Cn through D2.

Charging circuit is made of transformer T1, current limiting capacitance C1, rectifier bridge D1 and ammeter A, and the T1 primary coil connects the 220V AC power through power switch K1, and T1 secondary coil series connection C1 connects the input of D1; The D1 output meets batteries E through upper contact and the ammeter A of reversing switch K2.

During work, instrument is connected the 220V AC power, and the K switch 1 back rectifier bridge D1 of closed power transformer charges with the electric current accumulators group E that batteries E is complementary by ammeter A and reversing switch K2 output.When the indicating value decline 10mA left and right sides of ammeter, the energy of batteries E has possessed condition of work.

Press reversing switch K2 and cut off batteries E charging circuit, this moment, the positive pole of E was communicated with the primary coil intermediate contact of high frequency transformer T2, the negative pole of E is connected with the emitter stage of generator triode BG, the base stage of BG is joined through current-limiting resistance R and T2 primary coil upper end, the colelctor electrode of BG is that the lower end with the T2 primary coil joins, so the high frequency transformer T2 of this moment has started working, and has just produced higher-order of oscillation high-tension current at the T2 secondary coil.

Just producing high-voltage pulse current behind the high-frequency high-voltage current process kenotron D2 is capacitor group Cn charging.In process to the Cn charging, about 450V, just mention reversing switch K2 when the indicating value of voltmeter V and stop charging to Cn, E recovers charging simultaneously.Check whether all contacts are correct on the electric spark workpiece circuit be connected on the output wiring terminal this moment,, will carry out insulation processing if any what contact contacted with the earth or other conductors if any not critically tightening again that contact connects.Check result is errorless can press ignition switch K3, and all electric spark workpiece moment was all ignited or detonated this moment.

The utility model adopts the double contact switch of the sliding-contact formula of 13KV high frequency transformer and withstand voltage 15KV, having solved former KJ level static discharge device can not be with 24 450V, 560 μ F capacitances in series charging problem, the high-voltage switch gear number of contacts is dropped to problems such as minimum, energy loss that has been caused when having eliminated the multiple-contact commutation and contact sintering.

The utility model design has also increased the charging circuit of automatic accumulators group E charging, and is so just unified for one passive portable and active fixed as long as there is the 220V power supply just can be its charging at any time, made things convenient for use.

This instrument is applicable to that safe current is no more than 100 (lead length＜3m of various bridge silk priming system series connection of 5A, copper core Φ〉the 0.4mm copper conductor) ignite or detonate, comprise outer exploding bridge wire detonator of existing electric cap, electric igniter and medicine and copper bridge silk electric cap etc.It can ignite copper bridge silk of 0.01～0.09mm can also be ignited the nichrome bridge silk of 0.01～0.10mm.So it both can ignite the electric spark workpiece of no bridge silk ignition charge, also can ignite the existing various electric spark workpieces that bridge silk ignition charge is arranged.

Four, description of drawings

Accompanying drawing is circuit theory diagrams of the present utility model.

Five, the specific embodiment

T1 is 220V/24V-20W transformer, K1 is the switch of AC power, the rectifier bridge that D1 is made up of 4 1N4007 diodes, C1 is the current limiting capacitance (50V of D1 output current, 60 μ F), A is DC ammeter (indicating value 0～500mA), the batteries that E is made up of the battery that 10 capacity are 1.2～3.8Ah.K2 is a reversing switch, BG is a 3DD15D oscillating crystal triode, and R is the base stage current-limiting resistance (500 Ω) of BG, and T2 is a high frequency high voltage transformer, be made up of 50W high frequency magnetic core and primary coil (50 circles * 2), secondary coil (2750 circle), D2 is the 2DGL15K kenotron.Cn is 24 450V, the capacitor group that 560 μ F polar capacitors are formed, and V is the 500V D.C. voltmeter, K3 is the ignition switch of high pressure resistant 15KV.

The T1 primary coil connects on the 220V power supply by K1, and secondary series connection C1 is connected on the D1 input.The D1 output negative pole connects the negative pole of A, and the positive pole of A is connected on the negative pole of E and the colelctor electrode of BG, and the positive pole of D1 links to each other with the upper contact of K2, and the other end of K2 upper contact links to each other with the positive pole of E.Following contact one end of K2 and the positive pole of E link, and the other end is connected on the intermediate contact of the first polar curve circle of T2.The base series resistor R of BG is connected on the T2 upper end of polar curve circle just, and colelctor electrode is connected on the lower end of T2 primary coil.The positive pole of the secondary coil of T2 is connected on the negative pole of D2, and the positive pole of D2 is connected on a contact of K3 and the positive terminal of Cn respectively, and the b contact of K3 links to each other with output wiring terminal positive pole (instrument is marked with red marker).Can on this section lead, put an initiating signal induction coil as required when surveying.The negative pole of Cn directly links to each other with the output wiring terminal of black designation.

At first closed power switch K1 mentions commutation K2 then during operation, and the DC current that this moment, rectifier D1 produced is by ammeter A accumulators group E charging.When the ammeter indicating value descended about 10mA, batteries E had possessed work capacity.Pressing reversing switch K2, to stop to E charging makes batteries E be polar capacitor group Cn charging by BG, R, T2 and D2.When the indicating value of V reaches the 450V left and right sides, mention commutation K2 again and stop charging for Cn, recover to charge to E.Check whether all wiring are wrong between the priming system of series connection and the binding post, and normally by issuing K switch 3, moment can make all priming systems all be ignited or detonate as all this moment.

In the two ends shunt voltage Table V of the electric capacity in the centre of series capacitor bank Cn, the indicating value of V is represented the 1/n numerical value of Cn capacitance group when Cn electric capacity charges.When being 450V, total the numerical value of Cn rest potential is exactly 450V * 24=10.8kV as the V indicating value.

The structure of button switch K 3 is: on high insulator two fixedly latten(-tin)s that are welded with silver tipped contact are arranged, two fixedly latten(-tin) is parallel, opposing end surface is an arc, the two minimum range is greater than 15mm, the movable latten(-tin) that two silver tipped contacts of a welding are arranged at the fixing upper position of latten(-tin), this activity latten(-tin) is connected on the button spindle, can move up and down with button, when static it with two fixedly latten(-tin) apart minimum spacing be 7mm.

Claims

1, a kind of static of electric spark workpiece instrument that detonates that ignites, comprise static storage/releasing device, dc source and charging circuit, it is characterized in that: static storage/releasing device is to be composed in series capacitor group Cn by n polar capacitor, shunt voltage Table V on the capacitor of forming Cn, the output head anode of dc source connects the Cn positive pole, the negative pole of output end of dc source connects the Cn negative pole, and the Cn positive pole connects output wiring terminal through button switch K 3, and the Cn negative pole connects another output wiring terminal.

2, the static of the electric spark workpiece according to claim 1 instrument that detonates that ignites, it is characterized in that: dc source is made of batteries E, generator triode BG, high frequency transformer T2 and commutation diode D2, the E positive pole connects the T2 intermediate point of polar curve circle just through the following contact of reversing switch K2, the E negative pole connects the emitter stage of BG, the base series resistor R of BG connects the upper end of T2 primary coil line, the colelctor electrode of BG connects the T2 lower end of polar curve circle just, and the T2 secondary coil meets capacitor group Cn through D2.

3, the static of the electric spark workpiece according to claim 1 instrument that detonates that ignites, it is characterized in that: charging circuit is made of transformer T1, current limiting capacitance C1, rectifier bridge D1 and ammeter A, the T1 primary coil connects the 220V AC power through power switch K1, and T1 secondary coil series connection C1 connects the input of D1; The D1 output meets batteries E through upper contact and the ammeter A of reversing switch K2.

4, the static of the electric spark workpiece according to claim 1 instrument that detonates that ignites is characterized in that: voltmeter V is connected in parallel on the capacitor in the middle of the capacitor group Cn.

5, the static of the electric spark workpiece according to claim 1 instrument that detonates that ignites, the structure that it is characterized in that button switch K 3 is: on high insulator two fixedly latten(-tin)s that are welded with silver tipped contact are arranged, two fixedly latten(-tin) is parallel, opposing end surface is an arc, the two minimum range is greater than 15mm, the movable latten(-tin) that two silver tipped contacts of a welding are arranged at the fixing upper position of latten(-tin), this activity latten(-tin) is connected on the button spindle, can move up and down with button, when static it with two fixedly latten(-tin) apart minimum spacing be 7mm.