CN111911318A - Solid engine ignition circuit with feedback - Google Patents
Solid engine ignition circuit with feedback Download PDFInfo
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- CN111911318A CN111911318A CN202010598114.6A CN202010598114A CN111911318A CN 111911318 A CN111911318 A CN 111911318A CN 202010598114 A CN202010598114 A CN 202010598114A CN 111911318 A CN111911318 A CN 111911318A
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- relay
- triode
- channel
- diode
- resistor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/95—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by starting or ignition means or arrangements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The invention discloses a solid engine ignition circuit with feedback, which comprises a relay, a first triode, a first resistor, a capacitor, a first diode, a safety switch, a second triode, a second resistor and a second diode, wherein the relay is connected with the first triode; the common end and the normally closed end of the first relay channel are connected with two ends of the safety switch, and the normally closed end of the first relay channel is connected with the positive pole of the fire head driving voltage; the normally open end of the first channel of the relay is connected with the normally open end of the second channel; the common end and the normally closed end of the second relay channel are connected with two ends of the fire head; the normally closed end of the second channel of the relay is connected with the emitter of the second triode; the emitter of the first triode is connected with the driving voltage anode of the relay; the other end of the first resistor is simultaneously connected with one end of the capacitor and the control end of the control interface; the emitter of the second triode is also connected with an external controller signal input pin. The ignition head solves the problems of safety protection of daily storage and transportation and electric protection before use of the conventional solid engine ignition head.
Description
Technical Field
The invention belongs to the technical field of solid engine safety ignition circuits, and particularly relates to a solid engine ignition circuit with feedback.
Background
At present, due to the advantages of a solid engine in transportation and storage, the solid engine is widely applied to various rocket projectiles, guided bombs, missiles and various individual weapons, the solid engine belongs to explosive substances, and an ignition head of the solid engine is an electric sensitive component, so that safety protection design is mostly adopted in the existing solid engine, a misfiring device is usually designed for a large-sized solid engine, and two ends of the ignition head of the solid engine are mostly kept in a conducting state during storage and transportation by adopting a method for a small-sized solid engine, so that the protection for abnormal discharge is realized.
However, the existing safety protection circuit for the small solid engine has potential safety hazard, the solid engine ignition head in a conducting state needs to be disconnected before ignition is needed, abnormal discharge phenomena such as static electricity and the like are easily generated in the disconnection process, and the potential safety hazard is left for the use of the solid engine.
Disclosure of Invention
The invention aims to provide a solid engine ignition circuit with feedback, which is used for solving the problems of safety protection of daily storage and transportation and electric protection before use of the conventional solid engine ignition head.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a solid engine ignition circuit with feedback comprises a relay, a first triode, a first resistor, a capacitor, a first diode, a safety switch, a second triode, a second resistor and a second diode;
the relay comprises two channels, wherein each channel is provided with a common end, a normally open end and a normally closed end; the positive electrode of the power supply end of the relay coil is connected with the collector electrode of the first triode, the negative electrode of the power supply end of the relay coil is grounded, a first diode is connected between the positive electrode and the negative electrode of the power supply end of the relay coil, and the conduction direction of the first diode points to the positive electrode of the power supply end; the common end and the normally closed end of the first relay channel are connected with two ends of the safety switch, and the normally closed end of the first relay channel is connected with the positive pole of the fire head driving voltage; the normally open end of the first channel of the relay is connected with the normally open end of the second channel; the common end and the normally closed end of the second relay channel are connected with two ends of the fire head; the normally closed end of the second channel of the relay is connected with the emitter of the second triode; the emitter of the first triode is connected with the driving voltage anode of the relay; the base electrode of the first triode is connected with one end of a first resistor, the other end of the first resistor is simultaneously connected with one end of a capacitor and the control end of a control interface, and the other end of the capacitor is connected with the grounding end of the control interface; the emitter of the second triode is also connected with an external controller signal input pin; the collector of the second triode is grounded; the base electrode of the second triode is simultaneously connected with one end of a second resistor and one end of a second diode, the conduction direction of the second diode points to an external controller, and the other end of the second diode is connected with a signal control pin of the external controller; the other end of the second resistor is connected with the driving voltage anode of the relay.
The invention has the following beneficial effects:
1. when the solid engine is stored or transported, the two wiring terminals of the engine ignition head are conducted, and the engine ignition head is physically isolated from the ignition circuit, so that the electric protection in daily storage and transportation is realized.
2. The safety switch is designed in such a way that the disconnection state of the safety switch is a safety locking state in daily storage and transportation processes, when the safety switch is required to be used, the safety switch is closed to release the safety, when the safety switch is released, two ends of the safety switch are already in a conduction state, abnormal discharge phenomena such as static electricity and the like cannot be generated, and at the moment, two wiring terminals of the solid engine ignition head are still in a conduction state.
3. The detection of the state of the ignition head and the ignition result is increased, and the whole process from before ignition to after ignition can be detected.
Drawings
FIG. 1 is a schematic circuit diagram of a solid state engine ignition circuit with feedback in accordance with the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial changes in the technical contents.
Example 1
Referring to fig. 1, the solid engine ignition circuit with feedback comprises a relay U1, a first triode Q1, a first resistor R1, a capacitor C1, a first diode D1, a safety switch S1, a second triode Q2, a second resistor R2 and a second diode D3;
the relay U1 comprises two channels, each channel has a common end G, a normally open end H and a normally closed end C; the positive electrode of the power supply end of the coil of the relay U1 is connected with the collector electrode of the first triode Q1, the negative electrode of the power supply end of the coil of the relay U1 is grounded, a first diode D1 is connected between the positive electrode and the negative electrode of the power supply end of the coil of the relay U1, and the conducting direction of the first diode D1 points to the positive electrode of the power supply end; the common end G and the normally closed end C of the first channel of the relay U1 are connected with two ends of a safety switch S1, and the normally closed end C of the first channel of the relay U1 is connected with the positive pole of a fire head driving voltage; the normally open end H of the first channel of the relay U1 is connected with the normally open end H of the second channel; the common end G and the normally closed end C of the second channel of the relay U1 are connected with two ends of an ignition head DHT; the normally closed end C of the second channel of the relay U1 is connected with the emitter of a second triode Q2; the emitter of the first triode Q1 is connected with the driving voltage anode of the relay; the base electrode of the first triode Q1 is connected with one end of a first resistor R1, the other end of the first resistor R1 is simultaneously connected with one end of a capacitor C1 and the control end of a control interface KZ, and the other end of the capacitor C1 is connected with the grounding end of the control interface KZ; the emitter of the second triode Q2 is also connected with an external controller signal input pin MCU _ I; the collector of the second triode Q2 is grounded; the base electrode of the second triode Q2 is simultaneously connected with one end of a second resistor R2 and one end of a second diode D3, the conduction direction of the second diode D3 points to an external controller, and the other end of the second diode D3 is connected with a signal control pin MCU _ K of the external controller; the other end of the second resistor R2 is connected with the positive pole of the driving voltage of the relay.
The working process is as follows: when the ignition is not performed, the safety switch S1 is switched off, the control end input of the control interface KZ is at a low level, the MCU _ K input by the external controller of the second diode D3 is at a low level, and the normally closed end C of the second channel of the detection relay U1 is in a floating state; when ignition is needed, the safety switch S1 is closed firstly, then the control end of the control interface KZ is pulled high, at the moment, the first triode Q1 is conducted, the first channel and the second channel of the relay U1 are closed, at the moment, the power supply current of the ignition head passes through the safety switch S1 from the normally closed end C of the first channel of the relay U1 and flows to one end where the ignition head DHT is connected with the common end G of the second channel of the relay U1, at the moment, the normally closed end G of the second channel of the detection relay U1 is in a high level state, at the moment, the external controller of the second diode D3 is pulled high to input the MCU _ K, so that the second triode Q2 is conducted, at the moment, the ignition head DHT realizes ignition, after ignition, the normally closed end C of the second channel of the detection relay is in a low level state, and the fact.
After the solid engine ignition circuit with feedback is adopted, when the solid engine is stored or transported, two wiring terminals of the engine ignition head are conducted, and the engine ignition head is physically isolated from the ignition circuit, so that the electric protection in daily storage and transportation is realized. The design based on the safety switch ensures that the off state of the safety switch is a safety locking state in the daily storage and transportation process, when the safety switch is required to be used, the safety switch is closed to release the safety, when the safety switch is released, two ends of the safety switch are in a conducting state, abnormal discharge phenomena such as static electricity and the like can not be generated, and at the moment, two wiring terminals of the solid engine ignition head are still in a conducting state. Meanwhile, the detection of the state of the ignition head and the ignition result is increased, and the whole process from before ignition to after ignition can be detected.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (1)
1. A solid state engine ignition circuit with feedback, characterized by: the ignition circuit comprises a relay (U1), a first triode (Q1), a first resistor (R1), a capacitor (C1), a first diode (D1), a safety switch (S1), a second triode (Q2), a second resistor (R2) and a second diode (D3);
the relay (U1) comprises two channels, each channel having a common end (G), a normally open end (H) and a normally closed end (C); the positive electrode of the power supply end of the coil of the relay (U1) is connected with the collector electrode of the first triode (Q1), the negative electrode of the power supply end of the coil of the relay (U1) is grounded, a first diode (D1) is connected between the positive electrode and the negative electrode of the power supply end of the coil of the relay (U1), and the conduction direction of the first diode (D1) points to the positive electrode of the power supply end; the common end (G) and the normally closed end (C) of the first channel of the relay (U1) are connected with two ends of a safety switch (S1), and the normally closed end (C) of the first channel of the relay (U1) is connected with the positive pole of a fire head driving voltage; the normally open end (H) of the first channel of the relay (U1) is connected with the normally open end (H) of the second channel; the common end (G) and the normally closed end (C) of the second channel of the relay (U1) are connected with two ends of an ignition head (DHT); the normally closed end (C) of the second channel of the relay (U1) is connected with the emitter of a second triode (Q2); the emitter of the first triode (Q1) is connected with the driving voltage anode of the relay; the base electrode of the first triode (Q1) is connected with one end of a first resistor (R1), the other end of the first resistor (R1) is simultaneously connected with one end of a capacitor (C1) and the control end of a control interface (KZ), and the other end of the capacitor (C1) is connected with the grounding end of the control interface (KZ); the emitter of the second triode (Q2) is also connected with an external controller signal input pin (MCU _ I); the collector of the second triode (Q2) is grounded; the base electrode of the second triode (Q2) is simultaneously connected with one end of a second resistor (R2) and one end of a second diode (D3), the conduction direction of the second diode (D3) points to an external controller, and the other end of the second diode (D3) is connected with a signal control pin (MCU _ K) of the external controller; the other end of the second resistor (R2) is connected with the positive pole of the driving voltage of the relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598114.6A CN111911318A (en) | 2020-06-28 | 2020-06-28 | Solid engine ignition circuit with feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598114.6A CN111911318A (en) | 2020-06-28 | 2020-06-28 | Solid engine ignition circuit with feedback |
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| Publication Number | Publication Date |
|---|---|
| CN111911318A true CN111911318A (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010598114.6A Withdrawn CN111911318A (en) | 2020-06-28 | 2020-06-28 | Solid engine ignition circuit with feedback |
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| CN (1) | CN111911318A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3287912A (en) * | 1962-06-30 | 1966-11-29 | Rheinmetall Gmbh | Propellent charge for solid fuel rockets |
| CN104454240A (en) * | 2014-11-24 | 2015-03-25 | 江西洪都航空工业集团有限责任公司 | Ignition control circuit for booster of aircraft |
| CN104895700A (en) * | 2015-04-15 | 2015-09-09 | 北京航天自动控制研究所 | Low delay ignition confirmation system and confirmation method applied to rocket ground information fusion |
| CN206360838U (en) * | 2016-11-28 | 2017-07-28 | 重庆航天机电设计院 | Safe high-energy Iganition control system |
| US20180058830A1 (en) * | 2016-08-23 | 2018-03-01 | Agency For Defense Development | Arm-fire device and method of igniting propulsion system using the same |
| CN109488487A (en) * | 2018-11-14 | 2019-03-19 | 南京云睿航天科技有限公司 | A kind of solid engines safety ignition circuit |
| CN109654959A (en) * | 2018-11-13 | 2019-04-19 | 重庆长安工业(集团)有限责任公司 | Electronic security(ELSEC) insurance circuit for people's rain rocket projectile |
| CN109854414A (en) * | 2018-12-11 | 2019-06-07 | 西安航天动力测控技术研究所 | A kind of safety ignition mechanism unit tester |
| CN110296022A (en) * | 2019-07-19 | 2019-10-01 | 桂林航天电子有限公司 | With the solid ignition module compared with strong adaptability |
-
2020
- 2020-06-28 CN CN202010598114.6A patent/CN111911318A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3287912A (en) * | 1962-06-30 | 1966-11-29 | Rheinmetall Gmbh | Propellent charge for solid fuel rockets |
| CN104454240A (en) * | 2014-11-24 | 2015-03-25 | 江西洪都航空工业集团有限责任公司 | Ignition control circuit for booster of aircraft |
| CN104895700A (en) * | 2015-04-15 | 2015-09-09 | 北京航天自动控制研究所 | Low delay ignition confirmation system and confirmation method applied to rocket ground information fusion |
| US20180058830A1 (en) * | 2016-08-23 | 2018-03-01 | Agency For Defense Development | Arm-fire device and method of igniting propulsion system using the same |
| CN206360838U (en) * | 2016-11-28 | 2017-07-28 | 重庆航天机电设计院 | Safe high-energy Iganition control system |
| CN109654959A (en) * | 2018-11-13 | 2019-04-19 | 重庆长安工业(集团)有限责任公司 | Electronic security(ELSEC) insurance circuit for people's rain rocket projectile |
| CN109488487A (en) * | 2018-11-14 | 2019-03-19 | 南京云睿航天科技有限公司 | A kind of solid engines safety ignition circuit |
| CN109854414A (en) * | 2018-12-11 | 2019-06-07 | 西安航天动力测控技术研究所 | A kind of safety ignition mechanism unit tester |
| CN110296022A (en) * | 2019-07-19 | 2019-10-01 | 桂林航天电子有限公司 | With the solid ignition module compared with strong adaptability |
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Application publication date: 20201110 |
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| WW01 | Invention patent application withdrawn after publication |