CN111561843A - Safe and reliable igniter circuit for initiating explosive device explosion test and working method thereof - Google Patents
Safe and reliable igniter circuit for initiating explosive device explosion test and working method thereof Download PDFInfo
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- CN111561843A CN111561843A CN202010464807.6A CN202010464807A CN111561843A CN 111561843 A CN111561843 A CN 111561843A CN 202010464807 A CN202010464807 A CN 202010464807A CN 111561843 A CN111561843 A CN 111561843A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
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- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The invention discloses a safe and reliable igniter circuit for an initiating explosive device explosion test and a working method thereof, and solves the problem of how to ensure that the igniter circuit is in a safe state in both working and non-working states in the initiating explosive device explosion test. In the ignition circuit of the traditional initiating explosive device explosion test circuit, a control circuit for controlling the on and off of the circuit is respectively added, the action of starting ignition is decomposed into three steps of closing the ignition circuit, giving an ignition signal and cutting off the ignition circuit, and a light-emitting indicator lamp is arranged to display the on and off of the ignition circuit, so that the ignition process is regulated from the safety perspective, and the safety of the ignition circuit in use and recovery storage is ensured. Provides a safe and practical operation means and process for field test operators.
Description
Technical Field
The invention relates to an igniter circuit for an initiating explosive device explosion test, in particular to a safe and reliable igniter circuit for the initiating explosive device explosion test and a working method thereof.
Background
After the novel initiating explosive device is designed, produced and assembled, explosion tests are generally required to be carried out, the explosion tests are carried out through an igniter, an ignition circuit in the igniter outputs an ignition current for the initiating explosive device after receiving an ignition starting electric signal, and the initiating explosive device is ignited to complete the explosion tests; the prior igniter circuit has the following problems in use, recovery and storage: (1) during the ignition test, whether the ignition signal circuit is in a connection state or not can not be accurately judged; (2) when a plurality of initiating explosive devices are tested by the same igniter, the high-risk danger of accidental explosion exists in the process of replacing the initiating explosive devices; (3) the ignition circuit is unscientific in operation safety and cannot fundamentally eliminate the potential safety hazard of the ignition circuit.
Disclosure of Invention
The invention provides a safe and reliable igniter circuit for an initiating explosive device explosion test and a working method thereof, and solves the technical problem of how to ensure that the igniter circuit is in a safe state in both working and non-working states in the initiating explosive device explosion test.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is as follows: in the ignition circuit of the traditional initiating explosive device explosion test circuit, a control circuit for controlling the on and off of the circuit is respectively added, the action of starting ignition is decomposed into three steps of closing the ignition circuit, giving an ignition signal and cutting off the ignition circuit, and a light-emitting indicator lamp is arranged to display the on and off of the ignition circuit, so that the ignition process is regulated from the safety perspective, and the safety of the ignition circuit in use and recovery storage is ensured.
A safe and reliable igniter circuit for an explosive test of initiating explosive devices comprises a tested initiating explosive device, an ignition power supply, a control circuit power supply, a double-pole double-throw switch relay, a first triode, a second triode, a third triode and a light-emitting diode, wherein a front exciting coil, a rear exciting coil, a first common end of a double-pole double-throw switch, a second common end of the double-pole double-throw switch, a first normally-closed end of the double-pole double-throw switch, a second normally-closed end of the double-pole double-throw switch, a first normally-opened end of the double-pole double-throw switch and a second normally-opened end of the double-pole double-throw switch are arranged in the double-pole double-throw switch relay, a base electrode of the first triode is connected with a high-level signal input end for controlling the closing of the ignition circuit through a first resistor, an emitting electrode of the first triode is grounded, a collector electrode of the first triode is connected with one end of, the other end of the front exciting coil is connected with the anode of the control circuit power supply, the base electrode of the second triode is connected with the ignition high-level signal input end through a second resistor, the collector electrode of the second triode is connected with the ignition power supply, the emitter electrode of the second triode is connected with the first common end, the first normally open end is connected with the ground, the second common end is connected with the anode of the light emitting diode through a third resistor, the cathode of the light emitting diode is grounded, the second normally open end is connected with the anode of the control circuit power supply, one end of the rear exciting coil is connected with the anode of the control circuit power supply, the other end of the rear exciting coil is connected with the collector of a third triode, the emitter of the third triode is grounded, and the base of the third triode is connected with the high-level signal input end of the control ignition circuit through a fourth resistor.
After the current exciting coil is electrified, the hand hay cutter of the double-pole double-throw switch is connected with the first normally open end and the second normally open end; when the back exciting coil is electrified, the hand hay of the double-pole double-throw switch is connected with the first normally closed end and the second normally closed end.
A safe and reliable working method of an igniter circuit for an initiating explosive device explosion test is characterized by comprising the following steps:
firstly, inputting a high-level signal for controlling the ignition circuit to be closed on a high-level signal input end for controlling the ignition circuit to be closed, conducting a first triode, electrifying a front exciting coil, switching the action of a hand knife in a double-pole double-throw switch relay to a first normally open end and a second normally open end, connecting an emitter of a second triode with an ignition input end of a workpiece to be tested sequentially through a first common end and the first normally open end, and meanwhile, lighting a light emitting diode by an anode of a power supply of the control circuit sequentially through the second normally open end, a second common end and a third resistor;
secondly, inputting an ignition high-level signal at an ignition high-level signal input end, and conducting a second triode to generate ignition current to ignite the workpiece to be tested;
and thirdly, inputting a high-level signal for controlling the ignition circuit to be disconnected on a high-level signal input end for controlling the ignition circuit to be disconnected, conducting a third triode, electrifying a rear exciting coil, switching the actions of a hand hay cutter in the double-pole double-throw switch relay to a first normally closed end and a second normally closed end, cutting off the ignition circuit of the workpiece to be tested, and simultaneously, losing the power of a circuit where the light emitting diode is located, and extinguishing the light emitting diode.
The invention utilizes the double-pole double-throw working mode of the bistable relay to combine the driving circuit and the load circuit, solves the problems of open circuit self-check, close self-check, fire path close luminous warning and the like of the initiating explosive device and the ignition branch circuit from the source of circuit design, does not need human intervention for the fire path open-close self-check and the luminous warning, and provides a safe and practical operation means and process for field test operators.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
an igniter circuit for safe and reliable initiating explosive device explosion test comprises a tested initiating explosive device U1, an ignition power supply VCC, a control circuit power supply VDD, a double-pole double-throw switch relay, a first triode V1, a second triode V2, a third triode V4 and a light emitting diode V3, wherein the double-pole double-throw switch relay is provided with a front exciting coil J1, a rear exciting coil J2, a first common end e of a double-pole double-throw switch, a second common end h of the double-pole double-throw switch, a first normally closed end f of the double-pole double-throw switch, a second normally closed end J of the double-pole double-throw switch, a first normally open end g of the double-pole double-throw switch and a second normally open end k of the double-pole double-throw switch, a base electrode of the first triode V1 is connected with a high-level signal input end W1 for controlling the ignition circuit through a first resistor R1, an emitter of the first triode V1 is grounded, a collector electrode of the first triode V1 is connected with a collector 35a collector of the front exciting coil J1 a, the other end b of the front exciting coil J1 is connected with the positive pole of the control circuit power supply VDD, the base of the second triode V2 is connected with the ignition high level signal input end W2 through a second resistor R2, the collector of the second triode V2 is connected with the ignition power supply VCC, the emitter of the second triode V2 is connected with the first common end e, the tested ignition workpiece U1 is connected between the first normally open end g and the ground, the second common end h is connected with the positive pole of the light emitting diode V3 through a third resistor R3, the negative pole of the light emitting diode V3 is grounded, the second normally open end k is connected with the positive pole of the control circuit power supply VDD, one end c of the rear exciting coil J2 is connected with the positive pole of the control circuit power supply VDD, the other end d of the rear exciting coil J2 is connected with the collector of the third triode V4, the emitter of the third triode V4 is grounded, the base of the third transistor V4 is connected to the high-level signal input terminal W3 for controlling the ignition circuit to be turned off through a fourth resistor R4.
When the front exciting coil J1 is electrified, the hand hay of the double-pole double-throw switch is connected with the first normally open end g and the second normally open end k; when the rear exciting coil J2 is energized, the chopper of the double-pole double-throw switch is connected with the first normally closed end f and the second normally closed end J.
A safe and reliable working method of an igniter circuit for an initiating explosive device explosion test is characterized by comprising the following steps:
firstly, inputting a high-level signal for controlling the ignition circuit to be closed on a high-level signal input end W1 for controlling the ignition circuit to be closed, conducting a first triode V1, electrifying a front exciting coil J1, switching the actions of a hand hay cutter in a double-pole double-throw switch relay to a first normally-open end g and a second normally-open end k, enabling an emitter of a second triode V2 to be connected with an ignition input end of a tested workpiece U1 sequentially through a first common end e and the first normally-open end g, meanwhile, enabling an anode of a control circuit power supply VDD to sequentially pass through the second normally-open end k, a second common end h and a third resistor R3, and lighting a light emitting diode V3;
secondly, an ignition high level signal is input to an ignition high level signal input end W2, a second triode V2 is conducted to generate ignition current, and the tested ignition workpiece U1 is ignited;
thirdly, inputting a high-level signal for controlling the ignition circuit to be disconnected on a high-level signal input end W3 for controlling the ignition circuit to be disconnected, conducting a third triode V4, electrifying a rear exciting coil J2, switching the actions of a hand hay cutter in the double-pole double-throw switch relay to a first normally closed end f and a second normally closed end J, cutting off the ignition circuit of the tested explosive device U1, and simultaneously, losing power of a circuit where the light emitting diode V3 is located, and extinguishing the light emitting diode V3;
the igniter can ensure that the ignition circuit is in an off state after being repeatedly used or stored after being used according to the steps, so that the occurrence of an explosion event caused by the error input of an abnormal ignition signal is avoided, if the light-emitting diode is in an on state, the light-emitting diode plays a role of warning an operator, the ignition circuit is in an on state, care is needed when a tested workpiece U1 is replaced, and the ignition circuit is preferably switched off and then related operations are carried out;
through this circuit design, some firearm can accurately judge the connected state between initiating explosive device and the ignition drive circuit, and the flame path break-make is independently controllable, distinguishable, in case the intercommunication then gives out light warning, realizes the flame path break-make self-checking and gives out light warning purpose, has brought important guarantee for personnel's safety, product safety.
Claims (3)
1. A safe and reliable igniter circuit for an explosive test of initiating explosive devices comprises a tested initiating explosive device (U1), an ignition power supply (VCC), a control circuit power supply (VDD), a double-pole double-throw switch relay, a first triode (V1), a second triode (V2), a third triode (V4) and a light-emitting diode (V3), wherein the double-pole double-throw switch relay is provided with a front exciting coil (J1), a rear exciting coil (J2), a first common end (e) of the double-pole double-throw switch, a second common end (h) of the double-pole double-throw switch, a first normally closed end (f) of the double-pole double-throw switch, a second normally closed end (J) of the double-pole double-throw switch, a first normally open end (g) of the double-pole double-throw switch and a second normally open end (k) of the double-pole double-throw switch, and is characterized in that the base electrode of the first triode (V1) is connected with a high-level signal input end (W1) for controlling the ignition circuit to be closed through a first resistor (R1), the emitter of the first triode (V1) is grounded, the collector of the first triode (V1) is connected with one end (a) of a front exciting coil (J1), the other end (b) of the front exciting coil (J1) is connected with the positive pole of a control circuit power supply (VDD), the base of the second triode (V2) is connected with an ignition high-level signal input end (W2) through a second resistor (R2), the collector of the second triode (V2) is connected with an ignition power supply (VCC), the emitter of the second triode (V2) is connected with a first common end (e), a tested ignition workpiece (U1) is connected between the first common end (g) and the ground, the second common end (h) is connected with the positive pole of a light-emitting diode (V3) through a third resistor (R3), the negative pole of the light-emitting diode (V3) is grounded, and the second common end (k) is connected with the positive pole of the control circuit power supply (VDD), one end (c) of the rear excitation coil (J2) is connected with the positive electrode of the control circuit power supply (VDD), the other end (d) of the rear excitation coil (J2) is connected with the collector of the third triode (V4), the emitter of the third triode (V4) is grounded, and the base of the third triode (V4) is connected with the high-level signal input end (W3) for controlling the disconnection of the ignition circuit through a fourth resistor (R4).
2. A safe and reliable igniter circuit for explosive testing of initiating explosive devices according to claim 1, wherein the guillotine of the double-pole double-throw switch is connected to the first normally open end (g) and the second normally open end (k) when the current exciting coil (J1) is energized; when the rear exciting coil (J2) is electrified, the hand hay of the double-pole double-throw switch is connected with the first normally closed end (f) and the second normally closed end (J).
3. A method of operating a safe and reliable igniter circuit for explosive testing of initiating explosive devices according to claim 2, comprising the steps of:
firstly, inputting a high-level signal for controlling the ignition circuit to be closed on a high-level signal input end (W1) for controlling the ignition circuit to be closed, conducting a first triode (V1), electrifying a front exciting coil (J1), switching the hand hay cutter action in a double-pole double-throw switch relay to a first normally open end (g) and a second normally open end (k), connecting an emitter of a second triode (V2) with the ignition input end of a tested workpiece (U1) through a first common end (e) and the first normally open end (g) in sequence, and meanwhile, sequentially passing a positive electrode of a control circuit power supply (VDD) through the second normally open end (k), a second common end (h) and a third resistor (R3) to light a light emitting diode (V3);
secondly, inputting an ignition high level signal at an ignition high level signal input end (W2), and conducting a second triode (V2) to generate ignition current to ignite the tested ignition workpiece (U1);
and thirdly, inputting a high-level signal for controlling the ignition circuit to be disconnected on a high-level signal input end (W3) for controlling the ignition circuit to be disconnected, conducting a third triode (V4), electrifying a rear exciting coil (J2), switching the hand-knife action in the double-pole double-throw switch relay to a first normally-closed end (f) and a second normally-closed end (J), cutting off the ignition circuit of the tested ignition workpiece (U1), and simultaneously, losing power of a circuit where the light-emitting diode (V3) is located, and extinguishing the light-emitting diode (V3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010464807.6A CN111561843A (en) | 2020-05-28 | 2020-05-28 | Safe and reliable igniter circuit for initiating explosive device explosion test and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010464807.6A CN111561843A (en) | 2020-05-28 | 2020-05-28 | Safe and reliable igniter circuit for initiating explosive device explosion test and working method thereof |
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| Publication Number | Publication Date |
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| CN111561843A true CN111561843A (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010464807.6A Pending CN111561843A (en) | 2020-05-28 | 2020-05-28 | Safe and reliable igniter circuit for initiating explosive device explosion test and working method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201488662U (en) * | 2009-08-06 | 2010-05-26 | 中国航天科工集团第三总体设计部 | Complete round test safety control circuit |
| CN103217920A (en) * | 2013-03-20 | 2013-07-24 | 中国航天科技集团公司第四研究院第四十一研究所 | Initiating explosive device short-circuit protection circuit for measure-control device |
| KR101392223B1 (en) * | 2013-11-20 | 2014-05-08 | 국방과학연구소 | The firing test device and the method thereof |
| CN205609413U (en) * | 2016-04-29 | 2016-09-28 | 句容华源电器设备有限公司 | Isolator with state indicating device |
| CN109405679A (en) * | 2018-12-16 | 2019-03-01 | 山西汾西重工有限责任公司 | Self protection type's priming system ignition method |
| CN212482288U (en) * | 2020-05-28 | 2021-02-05 | 山西汾西重工有限责任公司 | Safe and reliable igniter circuit for initiating explosive device explosion test |
-
2020
- 2020-05-28 CN CN202010464807.6A patent/CN111561843A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201488662U (en) * | 2009-08-06 | 2010-05-26 | 中国航天科工集团第三总体设计部 | Complete round test safety control circuit |
| CN103217920A (en) * | 2013-03-20 | 2013-07-24 | 中国航天科技集团公司第四研究院第四十一研究所 | Initiating explosive device short-circuit protection circuit for measure-control device |
| KR101392223B1 (en) * | 2013-11-20 | 2014-05-08 | 국방과학연구소 | The firing test device and the method thereof |
| CN205609413U (en) * | 2016-04-29 | 2016-09-28 | 句容华源电器设备有限公司 | Isolator with state indicating device |
| CN109405679A (en) * | 2018-12-16 | 2019-03-01 | 山西汾西重工有限责任公司 | Self protection type's priming system ignition method |
| CN212482288U (en) * | 2020-05-28 | 2021-02-05 | 山西汾西重工有限责任公司 | Safe and reliable igniter circuit for initiating explosive device explosion test |
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