CN101826742A - Electric firing head ignition circuit for thermal battery - Google Patents
Electric firing head ignition circuit for thermal battery Download PDFInfo
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- CN101826742A CN101826742A CN 201010144486 CN201010144486A CN101826742A CN 101826742 A CN101826742 A CN 101826742A CN 201010144486 CN201010144486 CN 201010144486 CN 201010144486 A CN201010144486 A CN 201010144486A CN 101826742 A CN101826742 A CN 101826742A
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Abstract
The invention discloses an electric firing-head ignition circuit for a thermal battery, comprising an energy-storage tantalum capacitor C1, an isolating diode D1, a voltage-regulation tube DW1, a voltage-regulation tube DW2, a resistance R2, an anti-jamming ceramic capacitor C2 and an NPN triode Q2, wherein the energy-storage tantalum capacitor C1 accumulates and controls the electric energy transferred from the circuit, and the isolating diode D1 prevents the energy-storage tantalum capacitor from discharging to a control circuit; the voltage-regulation tube DW1, the voltage-regulation tube DW2, the resistance R2, the anti-jamming ceramic capacitor C2 and the NPN triode Q2 commonly form a circuit for detecting the voltage of the energy-storage tantalum capacitor C1 to indirectly control ignition time of the circuit; the NPN triode Q2, three current-limiting resistances, a PNP triode Q1 and a PNP triode Q3 form a three-triode positive feedback operating circuit; and the energy-storage tantalum capacitor C1, a self-discharge resistance R1, the anti-jamming ceramic capacitor C2 and the resistance R2 form two absorption and energy-consumption circuits for resisting wrong ignition caused by interference in case of external short circuit. The electric firing-head for the thermal battery realized by the circuit of the invention can achieve safe, reliable and accurate ignition, and can activate the thermal battery immediately.
Description
Technical field
The present invention relates to the thermal cell technical field, relate in particular to a kind of electric firing head ignition circuit for thermal battery that is used for.
Background technology
At present, thermal cell is the unique energy source devices of many guided missiles, the guided missile autonomous flight stage for its for its guidance system, flight control system, because of the war system provides the energy, finish predetermined function to guarantee guided missile.Thermal cell claims the hot activation reserve cell again, and it is nonrecoverable molten salt electrolyte primary cell.At normal temperatures, electrolyte is nonconducting solid, lights pyrotechnic heat source in the battery with electric firing head during use, and temperature rise raises rapidly in the battery, makes the electrolyte fusion, thus activated batteries and provide specified voltage and current to external circuit.Electric firing head is the main ignition element that the thermal cell electricity activates, and wherein the most frequently used is heat bridge silk electric firing head, and its ignition sensitivity is very high, as long as very little electric current just can make electric firing head light.
In order to improve guided missile storage time and security reliability, electric firing head ignition circuit adopts passive circuit.The electric firing head ignition energy comes from the output of the MISSILE LAUNCHING control circuit that is attached thereto.And the output of MISSILE LAUNCHING control circuit be exactly supply voltage is the output port of the CPU of 5V, after output port is output as high level the control beginning effectively, its suitable voltage is that 5V, internal resistance are the DC power supply of 500 Ω.In order to prevent overdue combustion, to require the output high level of MISSILE LAUNCHING control circuit to continue just can light electric firing head, to be lower than this special time and can not to light electric firing head after specific a few tens of milliseconds; Simultaneously, also to allow to become low level intermittently several times in the middle of the output high level of MISSILE LAUNCHING control circuit, after the cumulative time of output high level is specific a few tens of milliseconds, also can light electric firing head.Electric firing head resistance is 4 Ω, lights the electric firing head energy needed and all is taken from countdown circuit and is output as the output of the part in this specific a few tens of milliseconds behind the high level.
Summary of the invention
At above-mentioned specification requirement, the invention provides a kind of electric firing head ignition circuit for thermal battery, utilize this circuit can realize safely, reliably, exactly that the thermal cell electric firing head lights, activation heat is battery operated.
In order to solve the problems of the technologies described above, the present invention realizes that the technical scheme of electric firing head ignition circuit for thermal battery is to comprise: electric firing head ignition circuit for thermal battery control signal positive input binding post JP1 and control signal are born input wires terminal JP2; The binding post at electric firing head resistance R 6 and two ends thereof; Also comprise: an energy storage tantalum capacitor C 1 is used for the electric energy that the accumulation control circuit transmission comes, and an isolating diode D1 prevents that described energy storage tantalum capacitor C 1 from discharging to control circuit; Be configured for jointly detecting described energy storage tantalum capacitor C 1 voltage and reach the electronic circuit of control burning time indirectly by two voltage-stabiliser tube DW1 and DW2, a resistance R 2, one anti-interference ceramic disc capacitor C2 and a NPN type triode Q2; Constitute one or three triode positive feedback work electronic circuits by described NPN type triode Q2, three current-limiting resistances and two positive-negative-positive triodes; Two absorptions that constitute by described energy storage tantalum capacitor C 1 and a self discharge resistance R 1 and by a described anti-interference ceramic disc capacitor C2 and a resistance R 2 and energy consumption electronic circuit; The physical connection of above-mentioned each electronic circuit is: described electric firing head ignition circuit for thermal battery control signal positive input binding post JP1 is connected with the anode of described isolating diode D1, and the negative electrode of described isolating diode D1 is connected with an emitter that triggers the positive-negative-positive triode Q3 of electric firing head resistance R 6 with the emitter of positive-negative-positive triode Q1 with an end, the negative electrode of a voltage-stabiliser tube DW1, a positive feedback of the positive pole of described energy storage tantalum capacitor C 1, described self discharge resistance R 1 simultaneously; The negative input wires terminal JP2 of described electric firing head ignition circuit for thermal battery control signal is connected with the emitter of the end of the other end of the negative pole of described energy storage tantalum capacitor C 1, described self discharge resistance R 1, an end of described resistance R 2, described anti-interference ceramic disc capacitor C2, described NPN type triode Q2 and a binding post JP4 of described electric firing head resistance R 6 simultaneously; The anode of described voltage-stabiliser tube DW1 is connected with the negative electrode of a voltage-stabiliser tube DW2, and the anode of described voltage-stabiliser tube DW2 is connected with an end of positive-negative-positive triode Q1 collector electrode output current limiting resistance R 3 and the base stage of described NPN type triode Q2 with the other end of the other end of described resistance R 2, described anti-interference ceramic disc capacitor C2, described positive feedback simultaneously; Described positive feedback connects a current-limiting resistance R4 with the base stage of positive-negative-positive triode Q1; The base stage of described positive-negative-positive triode Q3 connects a current-limiting resistance R5, and the collector electrode of described positive-negative-positive triode Q3 is connected to another binding post JP3 of described electric firing head resistance R 6; The collector electrode of described NPN type triode Q2 is connected with the other end of positive-negative-positive triode Q1 base stage input current-limiting resistance R4 and the other end of described positive-negative-positive triode Q3 base stage input current-limiting resistance R5 with described positive feedback simultaneously.
Compared with prior art, the beneficial effect that has of the present invention is:
Because the electric energy that an energy storage tantalum capacitor C 1 accumulation control circuit transmission comes in the circuit of the present invention, an isolating diode D1 prevents that energy storage tantalum electric capacity from discharging to control circuit; And comprise and be used to detect energy storage tantalum capacitor C 1 voltage and reach the control circuit of burning time and a triode positive feedback operating circuit and two absorptions and energy consumption circuit indirectly in order to resist overdue combustion that outside interference in short-term causes.Therefore, utilize circuit of the present invention can realize safely, reliably, exactly that the thermal cell electric firing head lights, activation heat is battery operated.
Description of drawings
Accompanying drawing is electric firing head ignition circuit for thermal battery figure of the present invention.
Embodiment
Describe the present invention below in conjunction with the drawings and specific embodiments.
As shown in drawings, electric firing head ignition circuit for thermal battery of the present invention constitutes: comprise electric firing head ignition circuit for thermal battery control signal positive input binding post JP1, the electric firing head ignition circuit for thermal battery control signal is born input wires terminal JP2, isolating diode D1, energy storage tantalum capacitor C 1, self discharge resistance R 1, be used to detect the voltage-stabiliser tube DW1 of energy storage tantalum capacitor C 1 voltage, voltage-stabiliser tube DW2 and resistance R 2, anti-interference ceramic disc capacitor C2, positive feedback positive-negative-positive triode Q1, triode Q1 collector electrode output current limiting resistance R 3, triode Q1 base stage input current-limiting resistance R4, NPN type triode Q2, electric firing head resistance R 6, the binding post JP3 of electric firing head resistance R 6 and binding post JP4, the positive-negative-positive triode Q3 of triggering electric firing head resistance R 6, triode Q3 base stage input current-limiting resistance R5.The concrete physical connection of this circuit is as follows: electric firing head ignition circuit for thermal battery control signal positive input binding post JP1 is connected with the anode of isolating diode D1; The negative electrode while of isolating diode D1 and the positive pole of energy storage tantalum capacitor C 1, one end of self discharge resistance R 1, the negative electrode of voltage-stabiliser tube DW1, positive feedback is connected with the emitter of positive-negative-positive triode Q1 and the emitter of the positive-negative-positive triode Q3 that triggers electric firing head resistance R 6, the anode of voltage-stabiliser tube DW1 is connected with the negative electrode of voltage-stabiliser tube DW2, the anode while of voltage-stabiliser tube DW2 and an end of resistance R 2, the end of anti-interference ceramic disc capacitor C2, one end of triode Q1 collector electrode output current limiting resistance resistance R 3 and the base stage of NPN type triode Q2 are connected, the collector electrode of NPN type triode Q2 is connected with the end of triode Q1 base stage input current-limiting resistance R4 and the end of triode Q3 base stage input current-limiting resistance R5 simultaneously, positive feedback is connected with the other end of triode Q1 base stage input current-limiting resistance R4 with the base stage of positive-negative-positive triode Q1, positive feedback is connected with the other end of the collector electrode current-limiting resistance R3 of triode Q1 with the collector electrode of positive-negative-positive triode Q1, the base stage that triggers the positive-negative-positive triode Q3 of electric firing head resistance R 6 is connected with the other end of triode Q3 base stage input current-limiting resistance R5, the collector electrode that triggers the positive-negative-positive triode Q1 of electric firing head resistance R 6 is connected with the binding post JP3 of electric firing head resistance R 6, and the binding post JP3 of electric firing head resistance R 6 is connected with the end of electric firing head R6; The other end of electric firing head resistance R 6 is connected with the binding post JP4 of electric firing head resistance R 6, and the negative input wires terminal JP2 of electric firing head ignition circuit for thermal battery control signal is connected with the other end of the negative pole of energy storage tantalum capacitor C 1, the other end of self discharge resistance R 1, anti-interference ceramic disc capacitor C2, the emitter of NPN type triode Q2 and the binding post JP4 of electric firing head resistance R 6 simultaneously.
Isolating diode D1 selects the extremely low Schottky diode of tube voltage drop for use in the above-mentioned electric firing head ignition circuit for thermal battery, it can prevent to become intermittently in the middle of the output high level of MISSILE LAUNCHING control circuit low level several times the time energy storage tantalum capacitor C 1 discharge to control circuit.
Storage capacitor is selected tantalum electric capacity for use in the above-mentioned electric firing head ignition circuit for thermal battery, is because tantalum electric capacity all is being better than traditional electrolytic capacitor on the volume He on the performance.The foundation of determining of energy storage tantalum capacitor C 1 appearance value is, be that 5V, the internal resistance of source are 500 Ω, 1 charging interval of energy storage tantalum capacitor C to be that the output high level of requirement MISSILE LAUNCHING control circuit should continue specific a few tens of milliseconds and self discharge resistance R 1 to get hundreds of k Ω be model with the supply voltage, by circuit simulation calculate the capacitance energy storage of finding out when maximum pairing capacitance as energy storage tantalum capacitor C 1 appearance value.
Above-mentioned electric firing head ignition circuit for thermal battery can ensure that the output high level of MISSILE LAUNCHING control circuit continues just to light electric firing head after specific a few tens of milliseconds, realize more accurate control, what rely on fully is to be configured for jointly detecting energy storage tantalum capacitor C 1 voltage and to be reached the electronic circuit of control electric firing head burning time indirectly by voltage-stabiliser tube DW1, voltage-stabiliser tube DW2, resistance R 2, anti-interference ceramic disc capacitor C2 and NPN type triode Q2.
What above-mentioned electric firing head ignition circuit for thermal battery can guarantee that electric firing head resistance R 6 reliable ignitions rely on fully is the electronic circuit that forms triode Q1, Q2 and Q3 positive feedback work that is made of NPN type triode Q2, resistance R 3, resistance R 4, resistance R 5, positive-negative-positive triode Q1 and Q3.
Above-mentioned electric firing head ignition circuit for thermal battery can resist that outside interference in short-term relies on is two absorptions constituting by energy storage tantalum capacitor C 1 and self discharge resistance R 1 and by anti-interference ceramic disc capacitor C2 and resistance R 2 and the electronic circuit of energy consumption.
The operation principle of above-mentioned electric firing head ignition circuit for thermal battery is as follows:
The output of MISSILE LAUNCHING control circuit be exactly supply voltage be the output port of the CPU of 5V, be output as behind the high level control beginning effectively, its suitable voltage is that 5V, internal resistance are the DC power supply of 500 Ω.After the MISSILE LAUNCHING control circuit is output as high level control beginning effectively, electric firing head ignition circuit for thermal battery is started working, external control circuit is 1 charging of energy storage tantalum capacitor C, energy storage tantalum capacitor C 1 voltage begins to increase by index law by zero, the charging current of energy storage tantalum capacitor C 1 reduces by index law, the energy of energy storage tantalum capacitor C 1 accumulation progressively increases, but three transistors in the circuit all are in cut-off state.After the separately voltage stabilizing value sum of energy storage tantalum capacitor C 1 voltage greater than voltage-stabiliser tube DW1 that is connected in series and voltage-stabiliser tube DW2, the voltage-stabiliser tube DW1 and the voltage-stabiliser tube DW2 that are connected in series begin conducting, the conducting electric current is anti-interference ceramic disc capacitor C2 charging, certain shunting is arranged on resistance R 2 simultaneously, anti-interference ceramic disc capacitor C2 voltage increases gradually, after this voltage is greater than the bias voltage between NPN type triode Q2 base stage and the emitter, then conducting between NPN type triode Q2 collector electrode and emitter.In case NPN type triode Q2 conducting then is applied with the forward bias voltage that can make Q1 and Q3 conducting to positive feedback between with the emitter of the positive-negative-positive triode Q3 of positive-negative-positive triode Q1 and triggering electric firing head resistance R 6 and base stage respectively through triode Q1 base stage input current-limiting resistance R4 and triode Q3 base stage input current-limiting resistance R5.So positive feedback is used positive-negative-positive triode Q1 and is triggered the positive-negative-positive triode Q3 conducting fast simultaneously of electric firing head resistance R 6, triggering the electric energy that apace energy storage tantalum capacitor C 1 is stored after the positive-negative-positive triode Q3 conducting of electric firing head resistance R 6 is discharged on the triggering electric firing head resistance R 6, make electric firing head light fast, the activation heat battery.Meanwhile, conducting positive feedback be discharged into resistance R 2 with positive-negative-positive triode Q1 collector electrode output current through triode Q1 collector electrode output current limiting resistance R 3, on the parallel branch that anti-interference ceramic disc capacitor C2 and NPN type triode Q2 base stage to emitter constitutes, keep NPN type triode Q2 and continue conducting, also just continue to keep Q1, three transistors of Q2 and Q3 continue the conducting conducting, just formed by NPN type triode Q2 this moment, resistance R 3, resistance R 4, resistance R 5, the formation triode Q1 that positive-negative-positive triode Q1 and Q3 constitute, the electronic circuit of Q2 and Q3 positive feedback work, guarantee that the electric energy overwhelming majority that energy storage tantalum capacitor C 1 stores is discharged on the triggering electric firing head resistance R 6, ensures electric firing head resistance R 6 reliable ignitions.If there is not the electronic circuit of positive feedback work, in case trigger the positive-negative-positive triode Q3 conducting of electric firing head resistance R 6, the electric energy that energy storage tantalum capacitor C 1 stores is discharged into and triggers on the electric firing head resistance R 6, then energy storage tantalum capacitor C 1 voltage reduces, cause NPN type triode Q2 to end, also cause simultaneously the positive-negative-positive triode Q3 that triggers electric firing head resistance R 6 to end, 1 discharge of energy storage tantalum capacitor C is insufficient, can cause the electric firing head can't normal ignition.
If become low level intermittently several times in the middle of the output high level of MISSILE LAUNCHING control circuit, and it is much shorter with respect to high level time to become the lasting time of low level, because the resistance of the self discharge resistance R 1 in parallel with energy storage tantalum capacitor C 1 is very big, 1 discharge of self discharge resistance R slowly, the reduction of energy storage tantalum capacitor C 1 voltage can be ignored, when being output as after the high level cumulative time is specific a few tens of milliseconds, also can light electric firing head.
If the output high level of MISSILE LAUNCHING control circuit has continued less than just transferring lasting low level after a period of time of specific a few tens of milliseconds to, then energy storage tantalum capacitor C 1 energy stored can the self discharge resistance R 1 by in parallel with it slowly discharge, can in time correct unnecessary thermal cell electric firing head like this and light, in time correct mistakenly launching.
Although invention has been described in conjunction with the accompanying drawings above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; under the situation that does not break away from aim of the present invention, can also make a lot of distortion, these all belong within the protection of the present invention.
Claims (1)
1. electric firing head ignition circuit for thermal battery, comprising: electric firing head ignition circuit for thermal battery control signal positive input binding post JP1 and control signal are born input wires terminal JP2; The binding post at electric firing head resistance R 6 and two ends thereof; It is characterized in that, also comprise:
The electric energy that the 1 accumulation control circuit transmission of one energy storage tantalum capacitor C comes, an isolating diode D1 prevent that described energy storage tantalum capacitor C 1 from discharging to control circuit;
By two voltage-stabiliser tubes, a resistance R 2, one anti-interference ceramic disc capacitor C2 and a NPN type triode Q2 be configured for jointly detecting described energy storage tantalum capacitor C 1 voltage and reach indirectly control burning time electronic circuit;
Constitute one or three triode positive feedback work electronic circuits by described NPN type triode Q2, three current-limiting resistances and two positive-negative-positive triodes;
Two absorptions that constitute by described energy storage tantalum capacitor C 1 and a self discharge resistance R 1 and by a described anti-interference ceramic disc capacitor C2 and a resistance R 2 and energy consumption electronic circuit;
The physical connection of above-mentioned each electronic circuit is:
Described electric firing head ignition circuit for thermal battery control signal positive input binding post JP1 is connected with the anode of described isolating diode D1, and the negative electrode of described isolating diode D1 is connected with an emitter that triggers the positive-negative-positive triode Q3 of electric firing head resistance R 6 with the emitter of positive-negative-positive triode Q1 with an end, the negative electrode of a voltage-stabiliser tube DW1, a positive feedback of the positive pole of described energy storage tantalum capacitor C 1, described self discharge resistance R 1 simultaneously;
The negative input wires terminal JP2 of described electric firing head ignition circuit for thermal battery control signal is connected with the emitter of the end of the other end of the negative pole of described energy storage tantalum capacitor C 1, described self discharge resistance R 1, an end of described resistance R 2, described anti-interference ceramic disc capacitor C2, described NPN type triode Q2 and a binding post JP4 of described electric firing head resistance R 6 simultaneously;
The anode of described voltage-stabiliser tube DW1 is connected with the negative electrode of a voltage-stabiliser tube DW2, and the anode of described voltage-stabiliser tube DW2 is connected with an end of positive-negative-positive triode Q1 collector electrode output current limiting resistance resistance R 3 and the base stage of described NPN type triode Q2 with the other end of the other end of described resistance R 2, described anti-interference ceramic disc capacitor C2, described positive feedback simultaneously;
Described positive feedback connects a current-limiting resistance R4 with the base stage of positive-negative-positive triode Q1;
The base stage of described positive-negative-positive triode Q3 connects a current-limiting resistance R5, and the collector electrode of described positive-negative-positive triode Q3 is connected to another binding post JP3 of described electric firing head resistance R 6;
The collector electrode of described NPN type triode Q2 is connected with the other end of positive-negative-positive triode Q1 base stage input current-limiting resistance R4 and the other end of described positive-negative-positive triode Q3 base stage input current-limiting resistance R5 with described positive feedback simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101444868A CN101826742B (en) | 2010-04-12 | 2010-04-12 | Electric firing head ignition circuit for thermal battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101444868A CN101826742B (en) | 2010-04-12 | 2010-04-12 | Electric firing head ignition circuit for thermal battery |
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| Publication Number | Publication Date |
|---|---|
| CN101826742A true CN101826742A (en) | 2010-09-08 |
| CN101826742B CN101826742B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101444868A Expired - Fee Related CN101826742B (en) | 2010-04-12 | 2010-04-12 | Electric firing head ignition circuit for thermal battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110270A (en) * | 2017-12-26 | 2018-06-01 | 贵州梅岭电源有限公司 | A kind of thermal cell exports activation control circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01253165A (en) * | 1988-03-31 | 1989-10-09 | Japan Storage Battery Co Ltd | Lithium thermal cell |
| JPH06215777A (en) * | 1992-10-01 | 1994-08-05 | Japan Storage Battery Co Ltd | Thermal cell |
| JPH08162129A (en) * | 1994-12-08 | 1996-06-21 | Japan Storage Battery Co Ltd | Thermal cell with attaching metal fitting and manufacture thereof |
-
2010
- 2010-04-12 CN CN2010101444868A patent/CN101826742B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01253165A (en) * | 1988-03-31 | 1989-10-09 | Japan Storage Battery Co Ltd | Lithium thermal cell |
| JPH06215777A (en) * | 1992-10-01 | 1994-08-05 | Japan Storage Battery Co Ltd | Thermal cell |
| JPH08162129A (en) * | 1994-12-08 | 1996-06-21 | Japan Storage Battery Co Ltd | Thermal cell with attaching metal fitting and manufacture thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《微计算机信息》 20061231 翟丹晨，刘正国 热电池参数测试与控制系统 91-93 1 第22卷, 第10-1期 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110270A (en) * | 2017-12-26 | 2018-06-01 | 贵州梅岭电源有限公司 | A kind of thermal cell exports activation control circuit |
| CN108110270B (en) * | 2017-12-26 | 2019-12-03 | 贵州梅岭电源有限公司 | A kind of thermal cell output activation control circuit |
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| CN101826742B (en) | 2012-05-23 |
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Effective date of registration: 20201123 Address after: 226000 Jiangsu Province, Nantong City Chongchuan District Taiping North Road, No. 1018 Patentee after: EC PRECISION TECHNOLOGY (JIANGSU) Corp. Address before: Room 402, building 24, Yuzhou Zunfu, Jinghai Town, Jinghai District, Tianjin Patentee before: Tianjin Dingsheng Technology Development Co.,Ltd. Effective date of registration: 20201123 Address after: Room 402, building 24, Yuzhou Zunfu, Jinghai Town, Jinghai District, Tianjin Patentee after: Tianjin Dingsheng Technology Development Co.,Ltd. Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92, Tianjin University Patentee before: Tianjin University |
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Granted publication date: 20120523 Termination date: 20210412 |