CN103411484A - Safe ignition control circuit of electronic detonator - Google Patents
Safe ignition control circuit of electronic detonator Download PDFInfo
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- CN103411484A CN103411484A CN201310365291XA CN201310365291A CN103411484A CN 103411484 A CN103411484 A CN 103411484A CN 201310365291X A CN201310365291X A CN 201310365291XA CN 201310365291 A CN201310365291 A CN 201310365291A CN 103411484 A CN103411484 A CN 103411484A
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Abstract
The invention discloses a safe ignition control circuit of an electronic detonator. The safe ignition control circuit comprises a controlled switch I, an ignition control logic, an ignition signal I, an ignition element and an energy storage element, wherein at least two controlled switches, namely the controlled switch I and a controlled switch II are connected in series in a loop of the energy storage element and the ignition element, and both the controlled switch I and the controlled switch II are connected with the ignition control logic. According to the safe ignition control circuit provided by the invention, at least two controlled switches are connected in series in the loop consisting of the energy storage element and the igniter wire of an ignition powder head, when mistaken conduction is caused by quality problems or welding problems in any one of the two controlled switches, or further the ignition signal is not executed in the ignition control logic, but an effective signal is generated, the energy of the energy storage element can not be acquired by the ignition element, so that the safety of igniting the igniter wire of the ignition powder head by virtue of the energy storage element of the electronic detonator is improved extremely.
Description
Technical field
The present invention relates to the electric detonator field, be specifically related to a kind of electric detonator safety ignition control circuit.
Background technology
Electric detonator is to use the digital electric circuit as time delay device, uses electric capacity as the energy source of igniting point of amorce.After detonation chain is received the ignition order from initiator, start according to default delay time work, after delay time has arrived, connect the connecting path of storage capacitor and medicine head bridge silk, the primer head, complete detonating of detonator.From the whole course of work, can find out, break-make control how to control storage capacitor and medicine head bridge silk is depended in the security of detonator.
At present, the general break-make of using a road controlled switch to control ignition circuit of the IGNITION CONTROL of electric detonator.There is the hidden danger of misoperation in the sort circuit pattern, and the controlled switch of even controlling igniting is because self device quality, welding or control logic error etc. are former thereby cause conducting.In case this phenomenon occurs, electric detonator can can't be ignited to schedule, causes safety problem.
Summary of the invention
Goal of the invention: in order to solve the deficiencies in the prior art, the invention provides a kind of electric detonator safety ignition control circuit, greatly improve the security that the electric detonator energy-storage travelling wave tube is got angry to medicine head bridge silk.
Technical scheme: a kind of electric detonator safety ignition control circuit, comprise controlled switch I, IGNITION CONTROL logic, ignition signal I, igniting element and energy-storage travelling wave tube, in the loop of described energy-storage travelling wave tube and igniting element, be in series with at least 2 controlled switch: controlled switch I and controlled switch II, the controlled switch I all is connected with the IGNITION CONTROL logic with the controlled switch II.
As optimization: described controlled switch I and controlled switch II are comprised of a plurality of transistors, and for example MOSFET(can be N raceway groove or P raceway groove), because being is connected on to get angry in loop, therefore require the conducting resistance of controlled switch very little.
As optimization: described controlled switch I and controlled switch II are distributed in homonymy or the both sides of igniting element.
As optimization: described ignition signal I and ignition signal II are simultaneously with the series connection of IGNITION CONTROL logic or with the IGNITION CONTROL logic, be connected respectively.
As optimization: the significant level of described ignition signal I and ignition signal II is identical or opposite.
Beneficial effect: the present invention is in series with at least two controlled switch in the loop of the bridge silk composition of energy-storage travelling wave tube and powder head, any one defective in quality or Welding Problems causes misleading between two controlled switch, or ignition signal is not carried out in the IGNITION CONTROL logic, but while producing useful signal, all can not pilot the fire element obtain the energy of energy-storage travelling wave tube, greatly improve the security that the electric detonator energy-storage travelling wave tube is got angry to medicine head bridge silk.
The accompanying drawing explanation
Fig. 1 is general igniting loop control circuit principle schematic;
Fig. 2 is safety ignition control circuit principle schematic A of the present invention, and two controlled switch are at the igniting element homonymy;
Fig. 3 is safety ignition control circuit principle schematic B of the present invention, and two controlled switch are in the igniting element both sides;
Fig. 4 is safety ignition control circuit principle schematic C of the present invention, and the IGNITION CONTROL logic is independent.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment
As shown in Figure 1,2,3, 4, a kind of electric detonator safety ignition control circuit, comprise controlled switch I 11, IGNITION CONTROL logical one 2, ignition signal I 13, igniting element 14 and energy-storage travelling wave tube 15, in the loop of energy-storage travelling wave tube 15 and igniting element 14, be in series with at least 2 controlled switch: controlled switch I 11 and controlled switch II 16, controlled switch I 11 all is connected with IGNITION CONTROL logical one 2 with controlled switch II 16.Controlled switch I 11 and controlled switch II 16 are comprised of a plurality of transistors, and for example MOSFET(can be N raceway groove or P raceway groove), because being is connected in the ignition loop, therefore require the conducting resistance of controlled switch very little.Controlled switch I 11 and controlled switch II 16 are distributed in homonymy or the both sides of igniting element 14.Ignition signal I 13 is connected or with IGNITION CONTROL logical one 2, is connected respectively with IGNITION CONTROL logical one 2 simultaneously with ignition signal II 17.The significant level of ignition signal I 13 and ignition signal II 17 is identical or opposite.Ignition signal I 13 and ignition signal II 17 result from the delay procedure of certain logic electronics circuit or MCU.When not needing to light a fire, controlled switch I 11 and controlled switch II 16 all are in open-circuit condition (presenting very big Resistance states), can't form loop between energy-storage travelling wave tube 15 and igniting element 14, and igniting element 14 is in a safe condition.Any one defective in quality or Welding Problems causes misleading between controlled switch I 11 and controlled switch II 16, or ignition signal I 13 and ignition signal II 17 are not carried out at IGNITION CONTROL logical one 2, but while producing useful signal (can cause controlled switch 11 or 16 conductings), all can not pilot fire element 14 obtain the energy of energy-storage travelling wave tube, this just improves several orders of magnitude than the level of security of traditional single controlled switch pattern.The present invention is in series with at least two controlled switch in the loop of the bridge silk composition of energy-storage travelling wave tube and powder head, any one defective in quality or Welding Problems causes misleading between two controlled switch, or ignition signal is not carried out in the IGNITION CONTROL logic, but while producing useful signal, all can not pilot the fire element obtain the energy of energy-storage travelling wave tube, greatly improve the security that the electric detonator energy-storage travelling wave tube is got angry to medicine head bridge silk.
Claims (5)
1. electric detonator safety ignition control circuit, comprise controlled switch I (11), IGNITION CONTROL logic (12), ignition signal I (13), igniting element (14) and energy-storage travelling wave tube (15), it is characterized in that: in the loop of described energy-storage travelling wave tube (15) and igniting element (14), be in series with at least 2 controlled switch: controlled switch I (11) and controlled switch II (16), controlled switch I (11) all is connected with IGNITION CONTROL logic (12) with controlled switch II (16).
2. electric detonator safety ignition control circuit according to claim 1, it is characterized in that: described controlled switch I (11) and controlled switch II (16) are comprised of a plurality of transistors.
3. electric detonator safety ignition control circuit according to claim 1, it is characterized in that: described controlled switch I (11) and controlled switch II (16) are distributed in homonymy or the both sides of igniting element (14).
4. electric detonator safety ignition control circuit according to claim 1 is characterized in that: described ignition signal I (13) and ignition signal II (17) are simultaneously with IGNITION CONTROL logic (12) series connection or with IGNITION CONTROL logic (12), be connected respectively.
5. electric detonator safety ignition control circuit according to claim 1, it is characterized in that: described ignition signal I (13) is identical or opposite with the significant level of ignition signal II (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365291XA CN103411484A (en) | 2013-08-21 | 2013-08-21 | Safe ignition control circuit of electronic detonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365291XA CN103411484A (en) | 2013-08-21 | 2013-08-21 | Safe ignition control circuit of electronic detonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103411484A true CN103411484A (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310365291XA Pending CN103411484A (en) | 2013-08-21 | 2013-08-21 | Safe ignition control circuit of electronic detonator |
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| CN (1) | CN103411484A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543463A (en) * | 2017-07-19 | 2018-01-05 | 上海航空电器有限公司 | A kind of cartridge explosive detonation chain and application method |
| CN109855495A (en) * | 2018-12-29 | 2019-06-07 | 广州卫富科技开发有限公司 | A kind of safety circuit and its control method and a kind of initiator |
| CN113739653A (en) * | 2021-09-17 | 2021-12-03 | 无锡盛景微电子股份有限公司 | Control circuit and equipment suitable for integrated circuit's transducer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346129C (en) * | 2003-09-15 | 2007-10-31 | 中国兵器工业***总体部 | Controller of digital electronic detonator |
| CN201043881Y (en) * | 2006-06-18 | 2008-04-02 | 曹彦华 | Safety-fused device |
| CN100453960C (en) * | 2006-06-06 | 2009-01-21 | 西安理工大学 | Optical control nano second electric igniter |
-
2013
- 2013-08-21 CN CN201310365291XA patent/CN103411484A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346129C (en) * | 2003-09-15 | 2007-10-31 | 中国兵器工业***总体部 | Controller of digital electronic detonator |
| CN100453960C (en) * | 2006-06-06 | 2009-01-21 | 西安理工大学 | Optical control nano second electric igniter |
| CN201043881Y (en) * | 2006-06-18 | 2008-04-02 | 曹彦华 | Safety-fused device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543463A (en) * | 2017-07-19 | 2018-01-05 | 上海航空电器有限公司 | A kind of cartridge explosive detonation chain and application method |
| CN107543463B (en) * | 2017-07-19 | 2022-08-12 | 上海航空电器有限公司 | Explosion circuit for explosion and bounce and use method |
| CN109855495A (en) * | 2018-12-29 | 2019-06-07 | 广州卫富科技开发有限公司 | A kind of safety circuit and its control method and a kind of initiator |
| CN113739653A (en) * | 2021-09-17 | 2021-12-03 | 无锡盛景微电子股份有限公司 | Control circuit and equipment suitable for integrated circuit's transducer |
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Application publication date: 20131127 |