CN105300205A - Ignition circuit applied to electric blasting device - Google Patents
Ignition circuit applied to electric blasting device Download PDFInfo
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- CN105300205A CN105300205A CN201510872560.0A CN201510872560A CN105300205A CN 105300205 A CN105300205 A CN 105300205A CN 201510872560 A CN201510872560 A CN 201510872560A CN 105300205 A CN105300205 A CN 105300205A
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Abstract
The invention discloses an ignition circuit applied to an electric blasting device, and belongs to the technical field of ignition control. The ignition circuit comprises electromagnetic relays K1-K5, photocoupling relays G1-G5 and current limiting resistors R1-R6; the ignition circuit performs the ignition control through five externally-input control signals CTR1-CTR5, wherein points 1 of G1-G5 are correspondingly connected with CTR1-CTR5 through R1-R6 one to one, points 2 are all grounded, points 3 are all connected with a positive voltage signal V1, and points 4 are correspondingly connected with coils B1-B5 of K1-K5 one to one; a normally open contact K5-1K is connected with a negative voltage signal V2GND; normally closed contacts K5-1B and K1-1B are connected with K2-1B; a common terminal COM5-1 is connected with an end AA of the electric blasting device through R6; an end BB of the electric blasting device is connected with common terminals COM1-1 and COM2-1; a normally open contact K1-1K is connected with a common terminal COM3-1; a normally open contact K2-1K is connected with a common terminal COM4-1; a normally open contact K3-1 is connected with a common terminal COM4-2; a normally open contact K4-1 is connected with a common terminal COM3-2; a common terminal COM4-2 is connected with a common terminal COM3-2; and normally open contacts K4-2 and K3-2 are both connected with a positive voltage signal V2.
Description
Technical field
The invention belongs to IGNITION CONTROL technical field, particularly relate to a kind of firing circuit being applied to electric detonation device.
Background technology
Along with developing rapidly of electronic technology, techniques intensity and the function of missile equipment increase day by day, and electric detonation device is constantly widely applied on guided missile, and are in considerable status.As the igniting of rocket engine; The supercharging of liquid engine propellant, the startup of engine, turn level; Stage Separation of Missile; Ignition of warhead etc., all needs to adopt electric detonation device.Can electric detonation device work safely, reliably, has direct impact to missile flight success or failure, otherwise the major accident that bullet can be caused to ruin people die.The application characteristic of electric detonation device and service condition determine when its firing circuit designs, except the technical requirement of satisfied routine, also should meet reliability and safety requirement, ensure that electric detonation device is when lighting a fire, firing circuit must be powered like clockwork, electric detonation device is detonated in good time, and outside the predetermined duration of ignition and igniting place in any case, electric detonation device is not because of artificial, components and parts and circuit, and the impact of other enchancement factors and detonating, cause peril to occur, jeopardize the safety of operating personnel, place and guided missile.
In the technical literature " cruising missile design of electrical system " that Yuhang Publishing House announces, electric detonation device firing circuit design description is mentioned: electric detonator is not when working, and input should add short circuit plug ground connection; In electric detonator firing circuit, must have multistage insurance, existing machine insurance, have again electricity insurance, this what insurance is separate, but conditions each other.
Although more design method demonstrates certain feasibility through model test, there is following problem:
Application short circuit plug implements short-circuit protection to electric detonation device, is to be realized by electric connector docking, and reliability is higher; But dismounting or installation that special lid carries out short circuit plug need be offered on bulkhead, and all need staff's manual operations at every turn, be unfavorable for being applied in (as launch site testing/transmitting) or guided missile vanning long term storage in the shorter task of time requirement.
When adopting two groups of normally opened contacts of single relay, control the break-make of the positive and negative firing circuit of electric detonation device respectively, when completing the igniting of electric detonation device, if two of this relay groups of normally opened contacts do not have regular event, or due to relay itself exist fault cannot adhesive time, will cause firing circuit cannot normal ignition; If be connected on two groups of asynchronous work of normally opened contact of the single relay in the positive and negative firing circuit of electric detonation device respectively, then can cause the failure of igniting sequential or the sequential exception of whole electric detonation device group.
When employing two relays two groups of normally opened contacts separately, after carrying out parallel connection, just controlling electric detonation device respectively, the break-make of negative firing circuit, when completing the igniting of electric detonation device, although achieve two Redundant Control of firing circuit, the normally opened contact that can solve when single relay can not regular event, or relay itself exist fault cannot adhesive time, cause firing circuit cannot the problem of normal ignition, if but two relays do not carry out action according to synchronic command, the problem of the asynchronous work of the relay normally open contact existed in the firing circuit then for single Control, be present in too in this circuit.
Therefore, reliable, the effective electric detonation device ignition control circuit adapting to following IGNITION CONTROL technical development need be furtherd investigate.
Summary of the invention
In view of this; the invention provides a kind of firing circuit being applied to electric detonation device; this firing circuit can either carry out short-circuit protection when normality to electric detonation device; ensure the laden security of electric detonation device; again can be operationally; short-circuit protection is removed to electric detonation device, implements effective, reliable IGNITION CONTROL.
In order to achieve the above object, technical scheme of the present invention is: this firing circuit comprises five electromagnetic relay K
1, K
2, K
3, K
4and K
5, five light coupling relay G
1, G
2, G
3, G
4and G
5, six current-limiting resistance R
1, R
2, R
3, R
4, R
5and R
6; This firing circuit carries out IGNITION CONTROL by the control signal of five outside inputs, and five control signals are respectively: CTR
1~ CTR
5.
Described electromagnetic relay K
1there is line bag B
1, normally opened contact K
1-1Kand corresponding common port COM
1-1, normally-closed contact K
1-1Band corresponding common port COM
1-1, and normally opened contact K
1-2Kand corresponding common port COM
1-2, normally-closed contact K
1-2Band corresponding common port COM
1-2.
Described electromagnetic relay K
2there is line bag B
2, normally opened contact K
2-1Kand corresponding common port COM
2-1, normally-closed contact K
2-1Band corresponding common port COM
2-1, and normally opened contact K
2-2Kand corresponding common port COM
2-2, normally-closed contact K
2-2Band corresponding common port COM
2-2.
Described electromagnetic relay K
3there is line bag B
3, normally opened contact K
3-1and corresponding common port COM
3-1, and normally opened contact K
3-2and corresponding common port COM
3-2.
Described electromagnetic relay K
4there is line bag B
4, normally opened contact K
4-1and corresponding common port COM
4-1, and normally opened contact K
4-2and corresponding common port COM
4-2.
Described electromagnetic relay K
5there is line bag B
5, normally opened contact K
5-1Kand corresponding common port COM
5-1, normally-closed contact K
5-1Band corresponding common port COM
5-1, and normally opened contact K
5-2Kand corresponding common port COM
5-2, normally-closed contact K
5-2Band corresponding common port COM
5-2.
Described light coupling relay G
11 with resistance R
1one end connect, resistance R
1the other end and control signal CTR
1connect; Light coupling relay G
12 be connected with GND signal; Light coupling relay G
13 with positive voltage signal V
1connect; Light coupling relay G
14 with line bag B
1just power supply port connect, negative voltage signal V
1gND and line bag B
1negative power supply port connect.
Described light coupling relay G
21 with resistance R
2one end connect, resistance R
2the other end and control signal CTR
2connect; Light coupling relay G
22 be connected with GND signal; Light coupling relay G
23 with positive voltage signal V
1connect; Light coupling relay G
24 with line bag B
2just power supply port connect, negative voltage signal V
1gND and line bag B
2negative power supply port connect;
Described light coupling relay G
31 with resistance R
3one end connect, resistance R
3the other end and control signal CTR
3connect; Light coupling relay G
32 be connected with GND signal; Light coupling relay G
33 with positive voltage signal V
1connect; Light coupling relay G
34 with line bag B
3just power supply port connect, negative voltage signal V
1gND and line bag B
3negative power supply port connect.
Described light coupling relay G
41 with resistance R
4one end connect, resistance R
4the other end and control signal CTR
4connect; Light coupling relay G
42 be connected with GND signal; Light coupling relay G
43 with positive voltage signal V
1connect; Light coupling relay G
44 with line bag B
4just power supply port connect, negative voltage signal V
1gND and line bag B
4negative power supply port connect.
Described light coupling relay G
51 with resistance R
5one end connect, resistance R
5the other end and control signal CTR
5connect; Light coupling relay G
52 be connected with GND signal; Light coupling relay G
53 with positive voltage signal V
1connect; Light coupling relay G
54 with line bag B
5just power supply port connect, negative voltage signal V
1gND and line bag B
5negative power supply port connect.
Normally opened contact K
5-1Kwith negative voltage signal V
2gND connects, normally-closed contact K
5-1Bwith normally-closed contact K
1-1Bwith normally-closed contact K
2-1Bconnect, its common port COM
5-1with current-limiting resistance R
6one end connect, current-limiting resistance R
6the other end hold with the AA of electric detonation device and be connected; BB end and the common port COM of electric detonation device
1-1and COM
2-1connect; Normally opened contact K
1-1Kwith normally opened contact K
3-1common port COM
3-1connect; Normally opened contact K
2-1Kwith normally opened contact K
4-1common port COM
4-1connect; Normally opened contact K
3-1with normally opened contact K
4-2common port COM
4-2connect; Normally opened contact K
4-1with normally opened contact K
3-2common port COM
3-2connect; Normally opened contact K
4-2common port COM
4-2with normally opened contact K
3-2common port COM
3-2connect; Normally opened contact K
4-2with positive voltage signal V
2connect, normally opened contact K
3-2with positive voltage signal V
2connect.
Further, five fly-wheel diode L are also comprised
1, L
2, L
3, L
4and L
5, wherein fly-wheel diode L
1negative electrode and line bag B
1just power supply port connect, anode and line bag B
1negative power supply port connect; Fly-wheel diode L
2negative electrode and line bag B
2just power supply port connect, anode and line bag B
2negative power supply port connect; Fly-wheel diode L
3negative electrode and line bag B
3just power supply port connect, anode and line bag B
3negative power supply port connect; Fly-wheel diode L
4negative electrode and line bag B
4just power supply port connect, anode and line bag B
4negative power supply port connect; Fly-wheel diode L
5negative electrode and line bag B
5just power supply port connect, anode and line bag B
5negative power supply port connect.
Further, the operation principle of this firing circuit is: when normality, needs to carry out short-circuit protection to electric detonation device, now five control signal CTR
1~ CTR
5all invalid, then light coupling relay G
1, G
2, G
3, G
4and G
5prime all effectively do not input, its rear class all disconnects, and causes electromagnetic relay K
1, K
2, K
3, K
4and K
5line bag B
1, B
2, B
3, B
4and B
5work electric pathway all disconnect, electromagnetic relay K
1normally opened contact K
1-1Kdisconnect, normally-closed contact K
1-1Bclosed; Electromagnetic relay K
2normally opened contact K
2-1Kdisconnect, normally-closed contact K
2-1Bclosed; Electromagnetic relay K
3normally opened contact K
3-1, K
3-2disconnect; Electromagnetic relay K
4normally opened contact K
4-1, K
4-2disconnect; Electromagnetic relay K
5normally opened contact K
5-1Kdisconnect, normally-closed contact K
5-1Bclosed; Now by electromagnetic relay K
5normally-closed contact K
5-1B, current-limiting resistance R
6, and and the electromagnetic relay K connected together
1normally-closed contact K
1-1Bwith electromagnetic relay K
2normally-closed contact K
2-1B, for electric detonation device provides short-circuit protection circuit;
When needs are lighted a fire to electric detonation device, this firing circuit obtains CTR by external sync
1, CTR
2and CTR
5control signal, light coupling relay G
1, G
2and G
5front stage conducting, connect electromagnetic relay K
1, K
2and K
5line bag B
1, B
2and B
5work electric pathway, then electromagnetic relay K
1normally opened contact K
1-1Kclosed, normally-closed contact K
1-1Bdisconnect; Electromagnetic relay K
2normally opened contact K
2-1Kclosed, normally-closed contact K
2-1Bdisconnect; By closed normally opened contact K
1-1Kwith electromagnetic relay K
3normally opened contact K
3-1common port COM
3-1link together, by closed normally opened contact K
2-1Kwith electromagnetic relay K
4normally opened contact K
4-1common port COM
4-1link together; Electromagnetic relay K
5normally opened contact K
5-1Kclosed, normally-closed contact K
5-1Bdisconnect, be disconnected the short-circuit protection circuit of electric detonation device, will light a fire negative voltage signal V
2gND and current-limiting resistance R
6link together; After the time interval of presetting, CTR
3and CTR
4control signal inputs to this firing circuit by external sync, light coupling relay G
3and G
4front stage conducting, connect electromagnetic relay K
3and K
4line bag B
3and B
4work electric pathway, then electromagnetic relay K
3normally opened contact K
3-1, K
3-2closed; Electromagnetic relay K
4normally opened contact K
4-1, K
4-2closed, by closed normally opened contact K
3-1with electromagnetic relay K
4normally opened contact K
4-2common port COM
4-2link together, by closed normally opened contact K
4-1with electromagnetic relay K
3normally opened contact K
3-2common port COM
3-2link together, namely light a fire positive voltage signal V
2the electromagnetic relay K of H type circuit is become by closed series and parallel
1, K
2, K
3and K
4normally opened contact and electric detonation device link together, then electric detonation device firing circuit connect, complete the IGNITION CONTROL to electric detonation device.
Beneficial effect:
(1) the present invention accurately, reliably can either send control signal, completes the IGNITION CONTROL to electric detonation device; When effectively can ensure that again non-ignition operation performs, the security of electric detonation device.The present invention is in circuit design; adopt the design philosophy of integrated planning, timesharing application; same group of mutual exclusion of application electromagnetic relay is often opened, normally-closed contact carries out path control to the short-circuit protection circuit of electric detonation device and negative sense firing circuit respectively; guarantee at any time; circuit has and only has a kind of state effectively (or effectively implement the IGNITION CONTROL of electric detonation device, or carry out effective short-circuit protection to electric detonation device).
(2) Redundancy Design and backup design are combined, implement to control to negative sense firing circuit.After the same group of mutual exclusion normally-closed contact parallel connection of two normally opened contacts in forward ignition control circuit, connect with same group of mutual exclusion normally-closed contact of the normally opened contact in negative sense ignition control circuit, short-circuit protection is implemented to electric detonation device.Like this, the harm that may bring after both having avoided one group of contact failure, applies again the mutual exclusion characteristic of electromagnetic relay same group of normally opened contact, normally-closed contact, ensure that any time electric detonation device has and only has a kind of effective status to exist.
(3) forward firing circuit is adopted to the method for designing of Redundant Control.By two of two electromagnetic relays groups of normally opened contact connection in series-parallel together, the path implementing forward firing circuit controls.Like this, after effectively can avoiding applying two groups of normally opened contact parallel connections of single electromagnetic relay, or after one of two electromagnetic relays group of normally opened contact series connection, when implementing path controls, because the reasons such as electromagnetic relay inefficacy cause normally opened contact timing closing or do not close, and then affect electric detonation device on time, the problem of reliable ignition, improve igniting reliability.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the present invention's " a kind of firing circuit being applied to electric detonation device ".
Detailed description of the invention
To develop simultaneously embodiment below in conjunction with accompanying drawing, describe the present invention.
As shown in Figure 1, the firing circuit in the present embodiment, comprises five electromagnetic relay K
1, K
2, K
3, K
4and K
5, five light coupling relay G
1, G
2, G
3, G
4and G
5, five fly-wheel diode L
1, L
2, L
3, L
4and L
5, six current-limiting resistance R
1, R
2, R
3, R
4, R
5and R
6.
For electromagnetic relay, it comprises many group normally opened contacts and normally-closed contact, and the corresponding one group of normally opened contact of each common port and one group of normally-closed contact, only need choose on the contact and common port thereof of conventional electromagnetic relay by demand herein.
Electromagnetic relay K
1there is line bag B
1, normally opened contact K
1-1Kand corresponding common port COM
1-1, normally-closed contact K
1-1Band corresponding common port COM
1-1, and normally opened contact K
1-2Kand corresponding common port COM
1-2, normally-closed contact K
1-2Band corresponding common port COM
1-2; Electromagnetic relay K
2there is line bag B
2, normally opened contact K
2-1Kand corresponding common port COM
2-1, normally-closed contact K
2-1Band corresponding common port COM
2-1, and normally opened contact K
2-2Kand corresponding common port COM
2-2, normally-closed contact K
2-2Band corresponding common port COM
2-2; Electromagnetic relay K
3there is line bag B
3, normally opened contact K
3-1and corresponding common port COM
3-1, and normally opened contact K
3-2and corresponding common port COM
3-2; Electromagnetic relay K
4there is line bag B
4, normally opened contact K
4-1and corresponding common port COM
4-1, and normally opened contact K
4-2and corresponding common port COM
4-2; Electromagnetic relay K
5there is line bag B
5, normally opened contact K
5-1Kand corresponding common port COM
5-1, normally-closed contact K
5-1Band corresponding common port COM
5-1, and normally opened contact K
5-2Kand corresponding common port COM
5-2, normally-closed contact K
5-2Band corresponding common port COM
5-2.
In the present embodiment, light coupling relay selects the AQY275A of Panasonic, and the JZC-078M of Guizhou Space Electric Co., Ltd selected by electromagnetic relay, and fly-wheel diode selects IN4007, resistance R
1~ R
5select the 0.47K/0.25W metalfilmresistor of Beijing 718 factory, resistance R
6select the 0.0012K/2W priming system current-limiting resistance of Yongxing in Sichuan Province Electronics Co., Ltd..
Light coupling relay G
11 with resistance R
1one end connect, resistance R
1the other end and control signal CTR
1connect; Light coupling relay G
12 be connected with GND signal; Light coupling relay G
13 with positive voltage signal V
1connect; Light coupling relay G
14 with line bag B
1just power supply port connect, negative voltage signal V
1gND and line bag B
1negative power supply port connect; Fly-wheel diode L
1negative electrode and line bag B
1just power supply port connect, anode and line bag B
1negative power supply port connect.
Light coupling relay G
21 with resistance R
2one end connect, resistance R
2the other end and control signal CTR
2connect; Light coupling relay G
22 be connected with GND signal; Light coupling relay G
23 with positive voltage signal V
1connect; Light coupling relay G
24 with line bag B
2just power supply port connect, negative voltage signal V
1gND and line bag B
2negative power supply port connect; Fly-wheel diode L
2negative electrode and line bag B
2just power supply port connect, anode and line bag B
2negative power supply port connect.
Light coupling relay G
31 with resistance R
3one end connect, resistance R
3the other end and control signal CTR
3connect; Light coupling relay G
32 be connected with GND signal; Light coupling relay G
33 with positive voltage signal V
1connect; Light coupling relay G
34 with line bag B
3just power supply port connect, negative voltage signal V
1gND and line bag B
3negative power supply port connect; Fly-wheel diode L
3negative electrode and line bag B
3just power supply port connect, anode and line bag B
3negative power supply port connect.
Light coupling relay G
41 with resistance R
4one end connect, resistance R
4the other end and control signal CTR
4connect; Light coupling relay G
42 be connected with GND signal; Light coupling relay G
43 with positive voltage signal V
1connect; Light coupling relay G
44 with line bag B
4just power supply port connect, negative voltage signal V
1gND and line bag B
4negative power supply port connect; Fly-wheel diode L
4negative electrode and line bag B
4just power supply port connect, anode and line bag B
4negative power supply port connect.
Light coupling relay G
51 with resistance R
5one end connect, resistance R
5the other end and control signal CTR
5connect; Light coupling relay G
52 be connected with GND signal; Light coupling relay G
53 with positive voltage signal V
1connect; Light coupling relay G
54 with line bag B
5just power supply port connect, negative voltage signal V
1gND and line bag B
5negative power supply port connect; Fly-wheel diode L
5negative electrode and line bag B
5just power supply port connect, anode and line bag B
5negative power supply port connect.
Normally opened contact K
5-1Kwith negative voltage signal V
2gND connects, normally-closed contact K
5-1Bwith normally-closed contact K
1-1Bwith normally-closed contact K
2-1Bconnect, its common port COM
5-1with current-limiting resistance R
6one end connect, current-limiting resistance R
6the other end hold with the AA of electric detonation device and be connected; BB end and the normally opened contact K of electric detonation device
1-1Kcommon port COM
1-1with normally opened contact K
2-1Kcommon port COM
2-1connect; Normally opened contact K
1-1Kwith normally opened contact K
3-1common port COM
3-1connect; Normally opened contact K
2-1Kwith normally opened contact K
4-1common port COM
4-1connect; Normally opened contact K
3-1with normally opened contact K
4-2common port COM
4-2connect; Normally opened contact K
4-1with normally opened contact K
3-2common port COM
3-2connect; Normally opened contact K
4-2with positive voltage signal V
2connect, normally opened contact K
3-2with positive voltage signal V
2connect.
Its operation principle is: when normality, needs to carry out short-circuit protection to electric detonation device.Now higher level's master cpu does not export any control signal, light coupling relay G
1, G
2, G
3, G
4and G
5prime all effectively do not input, its rear class all disconnects, and causes electromagnetic relay K
1, K
2, K
3, K
4and K
5line bag B
1, B
2, B
3, B
4and B
5work electric pathway all disconnect, electromagnetic relay K
1normally opened contact K
1-1Kdisconnect, normally-closed contact K
1-1Bclosed; Electromagnetic relay K
2normally opened contact K
2-1Kdisconnect, normally-closed contact K
2-1Bclosed; Electromagnetic relay K
3normally opened contact K
3-1, K
3-2disconnect; Electromagnetic relay K
4normally opened contact K
4-1, K
4-2disconnect; Electromagnetic relay K
5normally opened contact K
5-1Kdisconnect, normally-closed contact K
5-1Bclosed.Thus, by electromagnetic relay K
5normally-closed contact K
5-1B, current-limiting resistance R
6, and and the electromagnetic relay K connected together
1normally-closed contact K
1-1Bwith electromagnetic relay K
2normally-closed contact K
2-1B, for electric detonation device provides short-circuit protection circuit, can the effectively interference such as release electrostatic, electric detonation device is protected.
Although electromagnetic relay K
5normally-closed contact K
5-1Bbe connected in the short-circuit loop of electric detonation device, but it is with the normally opened contact K of group mutual exclusion
5-1Kbe disconnected igniting negative voltage signal V
2the connection of GND and electric detonation device, and electromagnetic relay K
3normally opened contact K
3-1, K
3-2with electromagnetic relay K
4normally opened contact K
4-1, K
4-2, after series and parallel connects, the H type circuit of formation is disconnected igniting positive voltage signal V
2with the connection of electric detonation device.Therefore in this state, electric detonation device, by good short-circuit protection, is disconnected the connection with positive and negative voltage signal of lighting a fire, and can not meet accident ignition conditions.
When needs are lighted a fire to electric detonation device, first, higher level's master cpu synchronism output CTR
1, CTR
2and CTR
5control signal, light coupling relay G
1, G
2and G
5front stage conducting, connect electromagnetic relay K
1, K
2and K
5line bag B
1, B
2and B
5work electric pathway, then electromagnetic relay K
1normally opened contact K
1-1Kclosed, normally-closed contact K
1-1Bdisconnect; Electromagnetic relay K
2normally opened contact K
2-1Kclosed, normally-closed contact K
2-1Bdisconnect; By closed normally opened contact K
1-1Kwith electromagnetic relay K
3normally opened contact K
3-1common port COM
3-1link together, by closed normally opened contact K
2-1Kwith electromagnetic relay K
4normally opened contact K
4-1common port COM
4-1link together.Electromagnetic relay K
5normally opened contact K
5-1Kclosed, normally-closed contact K
5-1Bdisconnect, be disconnected the short-circuit protection circuit of electric detonation device, will light a fire negative voltage signal V
2gND and current-limiting resistance R
6link together.
After higher level's master cpu waits for predetermined time interval, synchronism output CTR
3and CTR
4control signal, light coupling relay G
3and G
4front stage conducting, connect electromagnetic relay K
3and K
4line bag B
3and B
4work electric pathway, then electromagnetic relay K
3normally opened contact K
3-1, K
3-2closed; Electromagnetic relay K
4normally opened contact K
4-1, K
4-2closed, by closed normally opened contact K
3-1with electromagnetic relay K
4normally opened contact K
4-2common port COM
4-2link together, by closed normally opened contact K
4-1with electromagnetic relay K
3normally opened contact K
3-2common port COM
3-2link together, namely light a fire positive voltage signal V
2the electromagnetic relay K of H type circuit is become by closed series and parallel
1, K
2, K
3and K
4normally opened contact and electric detonation device link together, then electric detonation device firing circuit connect, complete the IGNITION CONTROL to electric detonation device.Under this kind of state, forward ignition control circuit is Redundancy Design, even if electromagnetic relay K
3with electromagnetic relay K
4any one group of normally opened contact lost efficacy, and electromagnetic relay K
1normally opened contact and electromagnetic relay K
2normally opened contact in both one of lost efficacy, effectively, on time do not close, the forward firing circuit of electric detonation device also can be made on time to connect, complete the IGNITION CONTROL of electric detonation device.
To sum up, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. be applied to a firing circuit for electric detonation device, it is characterized in that, this firing circuit comprises five electromagnetic relay K
1, K
2, K
3, K
4and K
5, five light coupling relay G
1, G
2, G
3, G
4and G
5, six current-limiting resistance R
1, R
2, R
3, R
4, R
5and R
6; This firing circuit carries out IGNITION CONTROL by the control signal of five outside inputs, and five control signals are respectively: CTR
1~ CTR
5;
Described electromagnetic relay K
1there is line bag B
1, normally opened contact K
1-1Kand corresponding common port COM
1-1, normally-closed contact K
1-1Band corresponding common port COM
1-1, and normally opened contact K
1-2Kand corresponding common port COM
1-2, normally-closed contact K
1-2Band corresponding common port COM
1-2;
Described electromagnetic relay K
2there is line bag B
2, normally opened contact K
2-1Kand corresponding common port COM
2-1, normally-closed contact K
2-1Band corresponding common port COM
2-1, and normally opened contact K
2-2Kand corresponding common port COM
2-2, normally-closed contact K
2-2Band corresponding common port COM
2-2;
Described electromagnetic relay K
3there is line bag B
3, normally opened contact K
3-1and corresponding common port COM
3-1, and normally opened contact K
3-2and corresponding common port COM
3-2;
Described electromagnetic relay K
4there is line bag B
4, normally opened contact K
4-1and corresponding common port COM
4-1, and normally opened contact K
4-2and corresponding common port COM
4-2;
Described electromagnetic relay K
5there is line bag B
5, normally opened contact K
5-1Kand corresponding common port COM
5-1, normally-closed contact K
5-1Band corresponding common port COM
5-1, and normally opened contact K
5-2Kand corresponding common port COM
5-2, normally-closed contact K
5-2Band corresponding common port COM
5-2;
Described light coupling relay G
11 with resistance R
1one end connect, resistance R
1the other end and control signal CTR
1connect; Light coupling relay G
12 be connected with GND signal; Light coupling relay G
13 with positive voltage signal V
1connect; Light coupling relay G
14 with line bag B
1just power supply port connect, negative voltage signal V
1gND and line bag B
1negative power supply port connect;
Described light coupling relay G
21 with resistance R
2one end connect, resistance R
2the other end and control signal CTR
2connect; Light coupling relay G
22 be connected with GND signal; Light coupling relay G
23 with positive voltage signal V
1connect; Light coupling relay G
24 with line bag B
2just power supply port connect, negative voltage signal V
1gND and line bag B
2negative power supply port connect;
Described light coupling relay G
31 with resistance R
3one end connect, resistance R
3the other end and control signal CTR
3connect; Light coupling relay G
32 be connected with GND signal; Light coupling relay G
33 with positive voltage signal V
1connect; Light coupling relay G
34 with line bag B
3just power supply port connect, negative voltage signal V
1gND and line bag B
3negative power supply port connect;
Described light coupling relay G
41 with resistance R
4one end connect, resistance R
4the other end and control signal CTR
4connect; Light coupling relay G
42 be connected with GND signal; Light coupling relay G
43 with positive voltage signal V
1connect; Light coupling relay G
44 with line bag B
4just power supply port connect, negative voltage signal V
1gND and line bag B
4negative power supply port connect;
Light coupling relay G
51 with resistance R
5one end connect, resistance R
5the other end and control signal CTR
5connect; Light coupling relay G
52 be connected with GND signal; Light coupling relay G
53 with positive voltage signal V
1connect; Light coupling relay G
54 with line bag B
5just power supply port connect, negative voltage signal V
1gND and line bag B
5negative power supply port connect;
Normally opened contact K
5-1Kwith negative voltage signal V
2gND connects, normally-closed contact K
5-1Bwith normally-closed contact K
1-1Bwith normally-closed contact K
2-1Bconnect, its common port COM
5-1with current-limiting resistance R
6one end connect, current-limiting resistance R
6the other end hold with the AA of electric detonation device and be connected; BB end and the common port COM of electric detonation device
1-1and COM
2-1connect; Normally opened contact K
1-1Kwith normally opened contact K
3-1common port COM
3-1connect; Normally opened contact K
2-1Kwith normally opened contact K
4-1common port COM
4-1connect; Normally opened contact K
3-1with normally opened contact K
4-2common port COM
4-2connect; Normally opened contact K
4-1with normally opened contact K
3-2common port COM
3-2connect; Normally opened contact K
4-2common port COM
4-2with normally opened contact K
3-2common port COM
3-2connect; Normally opened contact K
4-2with positive voltage signal V
2connect, normally opened contact K
3-2with positive voltage signal V
2connect.
2. a kind of firing circuit being applied to electric detonation device as claimed in claim 1, is characterized in that, also comprise five fly-wheel diode L
1, L
2, L
3, L
4and L
5, wherein fly-wheel diode L
1negative electrode and line bag B
1just power supply port connect, anode and line bag B
1negative power supply port connect; Fly-wheel diode L
2negative electrode and line bag B
2just power supply port connect, anode and line bag B
2negative power supply port connect; Fly-wheel diode L
3negative electrode and line bag B
3just power supply port connect, anode and line bag B
3negative power supply port connect; Fly-wheel diode L
4negative electrode and line bag B
4just power supply port connect, anode and line bag B
4negative power supply port connect; Fly-wheel diode L
5negative electrode and line bag B
5just power supply port connect, anode and line bag B
5negative power supply port connect.
3. a kind of firing circuit being applied to electric detonation device as claimed in claim 1, it is characterized in that, the operation principle of this firing circuit is: when normality, needs to carry out short-circuit protection to electric detonation device, now five control signal CTR
1~ CTR
5all invalid, then light coupling relay G
1, G
2, G
3, G
4and G
5prime all effectively do not input, its rear class all disconnects, and causes electromagnetic relay K
1, K
2, K
3, K
4and K
5line bag B
1, B
2, B
3, B
4and B
5work electric pathway all disconnect, electromagnetic relay K
1normally opened contact K
1-1Kdisconnect, normally-closed contact K
1-1Bclosed; Electromagnetic relay K
2normally opened contact K
2-1Kdisconnect, normally-closed contact K
2-1Bclosed; Electromagnetic relay K
3normally opened contact K
3-1, K
3-2disconnect; Electromagnetic relay K
4normally opened contact K
4-1, K
4-2disconnect; Electromagnetic relay K
5normally opened contact K
5-1Kdisconnect, normally-closed contact K
5-1Bclosed; Now by electromagnetic relay K
5normally-closed contact K
5-1B, current-limiting resistance R
6, and and the electromagnetic relay K connected together
1normally-closed contact K
1-1Bwith electromagnetic relay K
2normally-closed contact K
2-1B, for electric detonation device provides short-circuit protection circuit;
When needs are lighted a fire to electric detonation device, this firing circuit obtains CTR by external sync
1, CTR
2and CTR
5control signal, light coupling relay G
1, G
2and G
5front stage conducting, connect electromagnetic relay K
1, K
2and K
5line bag B
1, B
2and B
5work electric pathway, then electromagnetic relay K
1normally opened contact K
1-1Kclosed, normally-closed contact K
1-1Bdisconnect; Electromagnetic relay K
2normally opened contact K
2-1Kclosed, normally-closed contact K
2-1Bdisconnect; By closed normally opened contact K
1-1Kwith electromagnetic relay K
3normally opened contact K
3-1common port COM
3-1link together, by closed normally opened contact K
2-1Kwith electromagnetic relay K
4normally opened contact K
4-1common port COM
4-1link together; Electromagnetic relay K
5normally opened contact K
5-1Kclosed, normally-closed contact K
5-1Bdisconnect, be disconnected the short-circuit protection circuit of electric detonation device, will light a fire negative voltage signal V
2gND and current-limiting resistance R
6link together; After the time interval of presetting, CTR
3and CTR
4control signal inputs to this firing circuit by external sync, light coupling relay G
3and G
4front stage conducting, connect electromagnetic relay K
3and K
4line bag B
3and B
4work electric pathway, then electromagnetic relay K
3normally opened contact K
3-1, K
3-2closed; Electromagnetic relay K
4normally opened contact K
4-1, K
4-2closed, by closed normally opened contact K
3-1with electromagnetic relay K
4normally opened contact K
4-2common port COM
4-2link together, by closed normally opened contact K
4-1with electromagnetic relay K
3normally opened contact K
3-2common port COM
3-2link together, namely light a fire positive voltage signal V
2the electromagnetic relay K of H type circuit is become by closed series and parallel
1, K
2, K
3and K
4normally opened contact and electric detonation device link together, then electric detonation device firing circuit connect, complete the IGNITION CONTROL to electric detonation device.
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CN201510872560.0A CN105300205B (en) | 2015-12-01 | 2015-12-01 | A kind of firing circuit being applied to electric detonation device |
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CN201510872560.0A CN105300205B (en) | 2015-12-01 | 2015-12-01 | A kind of firing circuit being applied to electric detonation device |
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CN105300205B CN105300205B (en) | 2016-11-30 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109578147A (en) * | 2018-10-31 | 2019-04-05 | 四川泛华航空仪表电器有限公司 | A kind of igniter being automatically repaired |
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CN2150521Y (en) * | 1993-02-24 | 1993-12-22 | 南票矿务局 | Constant-current ignitor |
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