CN102931628B - Protection circuit suitable for initiating explosive device on two-stage ignition bomb - Google Patents
Protection circuit suitable for initiating explosive device on two-stage ignition bomb Download PDFInfo
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- CN102931628B CN102931628B CN201210458310.9A CN201210458310A CN102931628B CN 102931628 B CN102931628 B CN 102931628B CN 201210458310 A CN201210458310 A CN 201210458310A CN 102931628 B CN102931628 B CN 102931628B
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Abstract
The invention discloses a protection circuit suitable for an initiating explosive device on a two-stage ignition bomb. The protection circuit belongs to the technical field of safety protection of the initiating explosive device on the bomb, and solves problems of delayed explosion and poor direct protectiveness of the initiating explosive device caused by a safety protection mode of the conventional initiating explosive device on the bomb. The protection circuit comprises a protection control relay, a protection state detection circuit and a ground control circuit; one end of the protection control relay is connected with a negative power supply end Q of an ignition power supply; the other end of the protection control relay is connected with a negative activating end T of the initiating explosive device; a control signal input end of the protection control relay is connected with a control signal output end of the ground control circuit, and the control signal output end of the protection control relay is connected with the control signal input end of the protection state detection circuit. The protection circuit is suitable for safety protection of the initiating explosive device on the two-stage ignition bomb.
Description
Technical field
The present invention relates to a kind of protective circuit that is applicable to priming system on two-stage igniting bullet, belong to priming system security protection technology field on bullet.
Background technology
The whether quick-fried success or failure that are related to test of normal point of priming system on bullet, whether the safety precautions of priming system is effective, and can be related to too test normally carry out.Conventionally the mode that on model bullet, priming system is protected as shown in Figure 3.As can be seen from Figure 3, traditional priming system guard method is the activation positive and negative terminal of priming system to be directly drawn out to ground carry out short circuit protection, the shortcoming of this kind of guard method is that protection circuit is longer on the one hand, if short-circuit protection end is mishandling, just may there is interference voltage, may cause like this overdue quick-fried of priming system, directly protectiveness is poor; Be on the other hand to meet the timing sequence test demand of firing action circuit.
Summary of the invention
The present invention has been that the safeguard protection mode for solving priming system on existing bullet can cause the overdue quick-fried of priming system, and the directly poor problem of protectiveness provides a kind of protective circuit that is applicable to priming system on two-stage igniting bullet.
The protective circuit that is applicable to priming system on two-stage igniting bullet of the present invention, it comprises protection control relay, guard mode testing circuit and ground control circuit,
The power supply negative terminal Q of one end tie point ignition source of protection control relay; the other end of protection control relay connects priming system and activates negative terminal T; the control signal input of protection control relay connects the control signal output of ground control circuit, and the control signal output of protection control relay connects the control signal input of guard mode testing circuit.
Described protective circuit is made up of the first electromagnetic relay K1, the second electromagnetic relay K2 and diode D,
The power supply negative terminal Q of the moving contact tie point ignition source of first group of contact K1-1 of the first electromagnetic relay K1, the normally closed fixed contact of this first group of contact K1-1 connects the moving contact of first group of contact K2-1 of the second electromagnetic relay K2, and the normally closed fixed contact of this first group of contact K2-1 connects priming system and activates negative terminal T;
The power supply negative terminal Q of the moving contact tie point ignition source of second group of contact K1-2 of the first electromagnetic relay K1, the normally closed fixed contact of this second group of contact K1-2 connects the moving contact of second group of contact K2-2 of the second electromagnetic relay K2, and the normally closed fixed contact of this second group of contact K2-2 connects priming system and activates negative terminal T;
The power supply negative terminal Q of the moving contact tie point ignition source of the 3rd group of contact K2-3 of the second electromagnetic relay K2, the normally closed fixed contact of the 3rd group of contact K2-3 connects the moving contact of the 3rd group of contact K1-3 of the first electromagnetic relay K1, and the normally closed fixed contact of the 3rd group of contact K1-3 connects priming system and activates negative terminal T;
The normally closed fixed contact of the 3rd group of contact K2-3 of the normally closed fixed contact of the normally closed fixed contact of first group of contact K1-1 of the first electromagnetic relay K1, second group of contact K1-2 of the first electromagnetic relay K1 and the second electromagnetic relay K2 links together;
The moving contact of the 4th group of contact K1-4 of the first electromagnetic relay K1 is as a guard mode test lead, the 4th group of contact K1-4 often opens the 4th group of contact K2-4 moving contact that fixed contact connects the second electromagnetic relay K2, and the 4th group of contact K2-4 often opens fixed contact as another guard mode test lead;
The negative electrode of diode D connects power supply VCC; the anode of diode D is as a link of ground control terminal short-circuit protection plug A; another of short-circuit protection plug A connects termination GND; the control coil of diode D and the first electromagnetic relay K1 is in parallel, and the control coil of diode D and the second electromagnetic relay K2 is in parallel.
Advantage of the present invention is: the invention provides the high reliability under a kind of guided missile two-stage igniting operating mode, the active Initiator Safety protective circuit of high security.It is in system testing and emission process; can guarantee point ignition circuit safety complete proper testing; confirm that firing circuit is in good state; can not reduce the reliability of firing circuit simultaneously; there is simple to operate, reliability and safe feature; it ensured in system testing and system emission process bullet on the safeguard protection of priming system, make on bullet priming system in flight course, realize reliable point quick-fried.
Brief description of the drawings
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is circuit theory diagrams of the present invention;
Fig. 3 is priming system protected mode schematic diagram on traditional bullet.
In figure, P represents the power supply anode of priming supply, and F represents that priming system activates anode, and H represents priming system.
Embodiment
Embodiment one: below in conjunction with Fig. 1 to Fig. 2, present embodiment is described, is applicable to the protective circuit of priming system on two-stage igniting bullet described in present embodiment, it comprises protection control relay 1, guard mode testing circuit 2 and ground control circuit 3,
The power supply negative terminal Q of one end tie point ignition source of protection control relay 1; the other end of protection control relay 1 connects priming system and activates negative terminal T; the control signal input of protection control relay 1 connects the control signal output of ground control circuit 3, and the control signal output of protection control relay 1 connects the control signal input of guard mode testing circuit 2.
Embodiment two: below in conjunction with Fig. 1 to Fig. 2, present embodiment is described, present embodiment is that described protective circuit is made up of the first electromagnetic relay K1, the second electromagnetic relay K2 and diode D to the further illustrating of execution mode one,
The power supply negative terminal Q of the moving contact tie point ignition source of first group of contact K1-1 of the first electromagnetic relay K1, the normally closed fixed contact of this first group of contact K1-1 connects the moving contact of first group of contact K2-1 of the second electromagnetic relay K2, and the normally closed fixed contact of this first group of contact K2-1 connects priming system and activates negative terminal T;
The power supply negative terminal Q of the moving contact tie point ignition source of second group of contact K1-2 of the first electromagnetic relay K1, the normally closed fixed contact of this second group of contact K1-2 connects the moving contact of second group of contact K2-2 of the second electromagnetic relay K2, and the normally closed fixed contact of this second group of contact K2-2 connects priming system and activates negative terminal T;
The power supply negative terminal Q of the moving contact tie point ignition source of the 3rd group of contact K2-3 of the second electromagnetic relay K2, the normally closed fixed contact of the 3rd group of contact K2-3 connects the moving contact of the 3rd group of contact K1-3 of the first electromagnetic relay K1, and the normally closed fixed contact of the 3rd group of contact K1-3 connects priming system and activates negative terminal T;
The normally closed fixed contact of the 3rd group of contact K2-3 of the normally closed fixed contact of the normally closed fixed contact of first group of contact K1-1 of the first electromagnetic relay K1, second group of contact K1-2 of the first electromagnetic relay K1 and the second electromagnetic relay K2 links together;
The moving contact of the 4th group of contact K1-4 of the first electromagnetic relay K1 is as a guard mode test lead, the 4th group of contact K1-4 often opens the 4th group of contact K2-4 moving contact that fixed contact connects the second electromagnetic relay K2, and the 4th group of contact K2-4 often opens fixed contact as another guard mode test lead;
The negative electrode of diode D connects power supply VCC; the anode of diode D is as a link of ground control terminal short-circuit protection plug A; another of short-circuit protection plug A connects termination GND; the control coil of diode D and the first electromagnetic relay K1 is in parallel, and the control coil of diode D and the second electromagnetic relay K2 is in parallel.
Present embodiment designs priming system protective circuit between the power supply negative terminal Q of priming supply and the negative terminal T of priming system activation loop, as depicted in figs. 1 and 2.In system testing and emission process, by controlling the break-make of priming system protective circuit, realize the safeguard protection of priming system on bullet, can complete normal igniting timing sequence test.
The enforcement of this protective circuit divides five steps to complete, and concrete steps are:
The first step: active protection control:
Protection control relay 1 is selected two electromagnetic relays with 4 groups of contacts, and the connection of series and parallel is carried out in each 3 groups of contacts of two electromagnetic relays, and one end is connected to priming supply power supply negative terminal Q, and the other end is connected to the negative terminal T of priming system activation loop.
The coil control end of two electromagnetic relays is guided to ground, and short-circuit protection plug A can adopt custom-designed short-circuit protection plug, by connecting or pulling out short-circuit protection plug and realize the control to relay.
In the time that needs carry out on bullet priming system protection, ground control terminal connects short-circuit protection plug to put in place, the action of protection control relay, and cut-out point ignition source power supply negative terminal is connected with priming system activation loop negative terminal, the active protection of realization to priming system on bullet.
In the time not needing to carry out on bullet priming system protection, ground control terminal is pulled out short-circuit protection plug, and protection control relay, in normally off, ensures the unimpeded of ignition circuit, guarantees the reliability of firing circuit.
Second step: protective circuit guard mode can detection design:
Guard mode testing circuit 2 adopts the break-make of the pair of contact of protection control relay 1 to realize; in the time not needing to carry out on bullet priming system protection; the detection loop of guard mode testing circuit 2 is in off-state; in the time carrying out priming system protection; described detection loop is in conducting state, thereby the protection state of a control of priming system can be detected clearly.
The 3rd step: High Reliability Design:
Protection control relay 1 is selected two electromagnetic relays with 4 groups of contacts, each 3 groups of contacts of two electromagnetic relays is carried out to the connected mode of series and parallel, and through calculating, the reliability of protective circuit is 0.99996.
The 4th step: high security design:
The control end of short-circuit protection is chosen in the negative terminal of relay control coil, can prevent that accidental short circuit from causing damage to personnel and equipment, improved the fail safe of circuit.
The 5th step: simple and easy maneuverability design:
Ground control terminal adopts a kind of short-circuit protection plug A easy to plug fast, and two control line short circuits of ground control circuit 3 just can be realized to the protection to priming system on bullet, simple to operation.
Claims (1)
1. a protective circuit that is applicable to priming system on two-stage igniting bullet, it comprises protection control relay (1), guard mode testing circuit (2) and ground control circuit (3),
The power supply negative terminal Q of one end tie point ignition source of protection control relay (1), the other end of protection control relay (1) connects priming system and activates negative terminal T, the control signal input of protection control relay (1) connects the control signal output of ground control circuit (3), and the control signal output of protection control relay (1) connects the control signal input of guard mode testing circuit (2); It is characterized in that:
Described protective circuit is made up of the first electromagnetic relay K1, the second electromagnetic relay K2 and diode D,
The power supply negative terminal Q of the moving contact tie point ignition source of first group of contact K1-1 of the first electromagnetic relay K1, the normally closed fixed contact of this first group of contact K1-1 connects the moving contact of first group of contact K2-1 of the second electromagnetic relay K2, and the normally closed fixed contact of this first group of contact K2-1 connects priming system and activates negative terminal T;
The power supply negative terminal Q of the moving contact tie point ignition source of second group of contact K1-2 of the first electromagnetic relay K1, the normally closed fixed contact of this second group of contact K1-2 connects the moving contact of second group of contact K2-2 of the second electromagnetic relay K2, and the normally closed fixed contact of this second group of contact K2-2 connects priming system and activates negative terminal T;
The power supply negative terminal Q of the moving contact tie point ignition source of the 3rd group of contact K2-3 of the second electromagnetic relay K2, the normally closed fixed contact of the 3rd group of contact K2-3 connects the moving contact of the 3rd group of contact K1-3 of the first electromagnetic relay K1, and the normally closed fixed contact of the 3rd group of contact K1-3 connects priming system and activates negative terminal T;
The normally closed fixed contact of the 3rd group of contact K2-3 of the normally closed fixed contact of the normally closed fixed contact of first group of contact K1-1 of the first electromagnetic relay K1, second group of contact K1-2 of the first electromagnetic relay K1 and the second electromagnetic relay K2 links together;
The moving contact of the 4th group of contact K1-4 of the first electromagnetic relay K1 is as a guard mode test lead, the 4th group of contact K1-4 often opens the 4th group of contact K2-4 moving contact that fixed contact connects the second electromagnetic relay K2, and the 4th group of contact K2-4 often opens fixed contact as another guard mode test lead;
The negative electrode of diode D connects power supply VCC; the anode of diode D is as a link of ground control terminal short-circuit protection plug A; another of short-circuit protection plug A connects termination GND; the control coil of diode D and the first electromagnetic relay K1 is in parallel, and the control coil of diode D and the second electromagnetic relay K2 is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458310.9A CN102931628B (en) | 2012-11-14 | 2012-11-14 | Protection circuit suitable for initiating explosive device on two-stage ignition bomb |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210458310.9A CN102931628B (en) | 2012-11-14 | 2012-11-14 | Protection circuit suitable for initiating explosive device on two-stage ignition bomb |
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| CN102931628A CN102931628A (en) | 2013-02-13 |
| CN102931628B true CN102931628B (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210458310.9A Active CN102931628B (en) | 2012-11-14 | 2012-11-14 | Protection circuit suitable for initiating explosive device on two-stage ignition bomb |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217920B (en) * | 2013-03-20 | 2015-04-22 | 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 |
| CN104266553B (en) * | 2014-07-24 | 2016-01-13 | 娄文忠 | A kind of electric spark workpiece assembly |
| CN105223840B (en) * | 2015-08-21 | 2018-04-20 | 北京电子工程总体研究所 | A kind of priming system control circuit with automatic protection functions |
| CN106468761B (en) * | 2016-09-22 | 2019-03-26 | 中国运载火箭技术研究院 | A kind of aircraft priming system short-circuit protection circuit and state switching method |
| CN106786392B (en) * | 2016-12-15 | 2018-08-24 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aero-engine ignition power cutting circuit |
| CN108988287B (en) * | 2018-06-27 | 2019-10-01 | 晋西工业集团有限责任公司 | It is a kind of to dispense the whole short-circuit protection torn open |
| CN109405679B (en) * | 2018-12-16 | 2022-07-12 | 山西汾西重工有限责任公司 | Self-protection type initiating explosive device ignition method |
| CN110943515B (en) * | 2019-12-17 | 2021-02-02 | 北京空间飞行器总体设计部 | On-orbit power-off prevention method for spacecraft storage battery |
| CN114326472B (en) * | 2021-11-26 | 2024-09-24 | 北京时代精衡航天科技有限公司 | Multi-stage safety ignition system on bullet and control method |
| CN114353606B (en) * | 2021-11-30 | 2024-08-30 | 河北汉光重工有限责任公司 | On-bullet ignition circuit and method of underwater bullet |
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| WO2008112234A1 (en) * | 2007-03-12 | 2008-09-18 | Dyno Nobel Inc. | Detonator ignition protection circuit |
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