CN209687612U - A kind of novel fast automatic control circuit of engine misses - Google Patents
A kind of novel fast automatic control circuit of engine misses Download PDFInfo
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- CN209687612U CN209687612U CN201920345814.7U CN201920345814U CN209687612U CN 209687612 U CN209687612 U CN 209687612U CN 201920345814 U CN201920345814 U CN 201920345814U CN 209687612 U CN209687612 U CN 209687612U
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Abstract
A kind of novel fast automatic control circuit of engine misses, is provided with flame-out control switch unit, and the output switch ends of flame-out control switch unit are connect with flame-out line；The positive and negative both ends of flame-out line are connect with the input terminal of rectification unit respectively, the output end of rectification unit and the input terminal of energy-storage units connect, the output end of energy-storage units is connect with the input terminal of flameout control circuit unit, the output end of flameout control circuit unit is connect with the control terminal of flame-out control switch unit, and the control terminal of flameout control circuit unit is connect with flame-out control signal element；The connection of the output end of pwm switching signal control circuit unit first input end and rectification unit, second input terminal is connect with the output end of auxiliary power circuit unit, the control terminal of pwm switching signal control circuit unit is connect with flame-out control signal element, output end is connect with the control terminal of isolation boosting circuit unit, and the output end of isolation boosting circuit unit is connect with the input terminal of flameout control circuit unit.
Description
Technical field
The utility model relates to technical field of engine control, and in particular to a kind of novel fast automatic control of engine misses
Circuit processed.
Background technique
Engine is as can be the machine that can be converted into mechanical energy of other forms, and in logical machine, electrical generator fields are wide
General application, now in the art, such as generator control field, it generally adopts manually, passes through key or other controls
It is flame-out that switch is grounded the flame-out line of engine, but aforesaid way requires manual intervention, inconvenient to use, especially automatic
The disadvantage is particularly evident in control, such as in the automatic switchover system of generator and alternating current, the automatic switchover of generator and alternating current
Refer to that the power supply of load is provided by alternating current, after commercial power interruption power supply, is transferred to by generator powered, behind city power recovery, and from
Turn enters mains-supplied and stops generator, if will lead to generator using existing flame-out mode and stop working not in time, rung
Answer speed slow.
Utility model content
The utility model in view of the deficiencies of the prior art, proposes that a kind of structure is simple, fast response time, certainly using flame-out line
The energy of body and the energy of accessory power supply realize the flame-out novel fast automatic control circuit of engine misses automatically controlled,
Specific technical solution is as follows:
A kind of novel fast automatic control circuit of engine misses, it is characterised in that: it is provided with flame-out control switch unit,
The output switch ends of the flame-out control switch unit are connect with the anode of flame-out line and negative terminal respectively；
The anode and negative terminal of the flame-out line are also connect with the input terminal of rectification unit respectively, the output end of the rectification unit
It is connect with the input terminal of energy-storage units, the output end of the energy-storage units is connect with the input terminal of flameout control circuit unit, this puts out
The output end of fiery control circuit unit is connect with the control terminal of the flame-out control switch unit, the flameout control circuit unit
Control terminal connect with flame-out control signal element；
Be additionally provided with pwm switching signal control circuit unit, the pwm switching signal control circuit unit first input end with
The output end of the rectification unit connects, and the second input terminal is connect with the output end of auxiliary power circuit unit, the PWM switch
The control terminal of signal control circuit unit is connect with the flame-out control signal element, output end and isolation boosting circuit unit
Control terminal connection, the output end of the isolation boosting circuit unit are connect with the input terminal of the flameout control circuit unit.
The realization principle of the utility model: energy-storage units obtain the energy by rectification unit, carry out energy storage, in flame-out control
When the control terminal of circuit unit receives flame-out control signal, energy-storage units discharge rapidly, while pwm switching signal control circuit list
Member issues control instruction, and the starting of isolation boosting circuit unit carries out quick charge energy storage, flameout control circuit list to energy-storage units
The energy using energy-storage units of member, output end export misfire signals, which makes its flame-out control switch unit
In switch connect rapidly, stop working line positive and negative terminal shortcircuit, realize engine quickly stop working control.
Preferably to realize the utility model, further are as follows:
The energy-storage units are provided with capacitor C9, and capacitor C9 is connected in parallel on the positive-negative output end of the rectification unit, should
The both ends of capacitor C9, which also bridge, zener diode D16, and the negative terminal of zener diode D16 is VCC output end.
The flameout control circuit unit is provided with triode Q11, the emitter of triode Q11 respectively with the energy storage
The output end of unit is connected with the output end of isolation boosting circuit unit, and collector is grounded after resistance R39 and R42, base stage one
Road is connect after resistance R36 with the emitter of triode Q11, and another way is connect after R38 with the collector of triode Q14, should
The emitter of triode Q14 is grounded, and base stage is connected between the resistance R39 and R42；
The emitter of the triode Q11 is also connect after resistance R35 with the negative terminal of zener diode D21, the pressure stabilizing two
The anode of pole pipe D21 is connect after resistance R40 with the base stage of triode Q12 all the way, the collector of triode Q12 and described three
The collector of pole pipe Q14 connects, emitter ground connection, the anode another way of the zener diode D21 and flame-out control signal list
The output end connection of member.
The flame-out control switch unit is provided with silicon-controlled Q4, and the anode of the anode of the silicon-controlled Q4 and flame-out line connects
It connects, cathode is connect with the cathode of flame-out line, and control electrode is connect after resistance R33 with the cathode of diode D20, diode D20
Anode connect with the output end of the flameout control circuit unit；
The control electrode of the silicon-controlled Q4 is also grounded after resistance R31, and also bridging at the both ends resistance R31 has capacitor C21.
It is additionally provided with auxiliary power circuit unit, which is arranged bridge rectifier module, and the bridge-type is whole
Output plus terminal and the negative terminal bridging of flow module have capacitor C1, collection of the output plus terminal of the bridge rectifier module also with triode Q1
Electrode connection, the transmitting extremely circuit output end of triode Q1, base stage are connect with the emitter of triode Q2, triode Q2
Base stage be grounded after capacitor C6, collector is connect with the collector of the triode Q1 all the way, another way after resistance R25 with
The negative terminal of diode D4 connects, the positive ending grounding of diode D4, base stage of the negative terminal of the diode D4 also with triode Q2
Connection.
The flame-out control signal element is provided with photoelectric isolation module IC5, the input anode of photoelectric isolation module IC5
It is connect with the emitter of the triode Q1, input negative terminal is misfire signals input terminal, the output of the photoelectric isolation module IC5
Anode is connect with the anode of the zener diode D21, exports negativing ending grounding.
The pwm switching signal control circuit unit is provided with photoelectric isolation module IC4, photoelectric isolation module IC4
One input terminal is connect with the output plus terminal of the rectification unit, and the second input terminal is connect with the output negative terminal of the rectification unit,
The first output end of the photoelectric isolation module IC4 is connect with the output end of auxiliary power circuit unit, and second output terminal is through electricity
It is connect after resistance R34 with the anode of diode D19, the cathode of diode D19 is connect with the flame-out control signal element；
The anode of the diode D19 is also connect through resistance R32 with metal-oxide-semiconductor grid, the source electrode ground connection of the metal-oxide-semiconductor, in MOS
Also bridging has resistance R30 between the source electrode and grid of pipe, and the drain electrode of the metal-oxide-semiconductor and the control terminal of isolation boosting circuit unit connect
It connects.
The isolation boosting circuit unit is provided with isolating transformer T2, isolating transformer T2 pair side first end with it is described
The input terminal of flameout control circuit unit connects, second end ground connection, and the isolating transformer T2 primary side first end and PWM charging are controlled
The first output end of molding block IC6 connects, the second output terminal ground connection of PWM charge control module IC6, the isolating transformer
T2 primary side second end is connect with the output end of the auxiliary power circuit unit, control terminal and pwm switching signal control electricity
Road unit output end connection, the control terminal of the PWM charge control module IC6 upon the reception of control signals, the first output end
It is connected with second output terminal.
The utility model has the following beneficial effects: integrated circuit is simple, the energy of engine misses control line and storage are collected；
When the flame-out enable signal in outside is effective or open circuit, flameout control circuit utilizes the energy of energy-storage units and accessory power supply, control
Engine processed is quickly interior flame-out at five seconds；Integrated circuit is stable, also can be real in time in the case where accessory power supply is not involved in
Now stop working and controls；Control is simple, realizes engine automation control, and stable, cost of implementation is low.
Detailed description of the invention
Fig. 1 is the electrical block diagram of the utility model；
Fig. 2 is the circuit diagram of flameout control circuit unit in the utility model；
Fig. 3 is the circuit diagram of auxiliary power circuit unit in the utility model；
Fig. 4 is the circuit diagram that booster circuit unit is isolated in the utility model.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
As shown in Figure 1, Figure 2 and Figure 4: a kind of novel fast automatic control circuit of engine misses is provided with silicon-controlled Q4,
The anode of the silicon-controlled Q4 is connect with the anode of flame-out line IGON, and cathode is connect with the cathode of flame-out line IGON, silicon-controlled Q4's
Control electrode is connect after resistance R33 with the cathode of diode D20, anode and the flameout control circuit unit of diode D20
Output end connection, the control electrode of the silicon-controlled Q4 are also grounded after resistance R31, and also bridging at the both ends resistance R31 has capacitor
C21。
The anode of the flame-out line IGON connects after resistance R27 and resistance R28 with the first input end of bridge rectifier unit
Connect, the negative terminal of flame-out line IGON is connect with the second input terminal of bridge rectifier unit, the output plus terminal of the bridge rectifier unit with
Bridging has capacitor C9 between negative terminal, and at the both ends of capacitor C9, bridging has zener diode D16, and zener diode D16's is negative
End is circuit output end；The negative terminal of zener diode D16 is connect with the emitter of triode Q11 all the way, and another way is through resistance
It is connect after R36 with the base stage of triode Q11, at the both ends of resistance R36, bridging has capacitor C22, and triode Q11 collector is all the way
It is grounded after resistance R39 and resistance R42, the another way of triode Q11 collector is connect with the anode of diode D20；
The negative terminal of zener diode D16 is also connect after resistance R35 with the negative terminal of zener diode D21, two pole of pressure stabilizing
The anode of pipe D21 is connect after resistance R40 with the base stage of triode Q12, the emitter of triode Q12 ground connection, collector with
The collector of triode Q14 connects, and the collector of triode Q14 is also connect through resistance R38 with the base stage of triode Q11, and three
The emitter of pole pipe Q14 is grounded, and base stage is connect with the common end of resistance R39 and resistance R42, the base stage and hair of triode Q14
Also bridging has capacitor C23 between emitter-base bandgap grading；
The anode of the zener diode D21 is connect with photoelectric isolation module IC5 output plus terminal, photoelectric isolation module IC5
Negativing ending grounding is exported, the input anode of photoelectric isolation module IC5 is connect with the output end of auxiliary power circuit unit, the present embodiment
In be positive 12V, the input negative terminal of photoelectric isolation module IC5 is grounded after flame-out input signal switch, which opens
Guan Kewei triode.
Connect also after resistance R29 with the first input end of photoelectric isolation module IC4 in the anode of the bridge rectifier unit
It connecing, the second input terminal of photoelectric isolation module IC4 is connect with the negative terminal of bridge rectifier unit, and the of photoelectric isolation module IC4
One output end is connect with the output end of auxiliary power circuit unit, and be positive 12V in the present embodiment, and second output terminal is through resistance R34
It is connect afterwards with the anode of diode D19, the cathode of diode D19 is connect with flame-out input signal switch, diode D19's
Anode is also connect after resistance R32 with the grid of metal-oxide-semiconductor Q3, the source electrode ground connection of metal-oxide-semiconductor Q3, in the source electrode and grid of metal-oxide-semiconductor Q3
Bridging has resistance R30 between pole, is connected with capacitor C8 between metal-oxide-semiconductor Q3 source electrode and photoelectric isolation module IC4 second output terminal,
The drain electrode of metal-oxide-semiconductor Q3 is connect with the control terminal of PWM charge control module IC6, and PWM charge control module IC6 can be single-chip microcontroller,
The first output end of PWM charge control module IC6 is connect with the first end of isolating transformer T2 primary side, second output terminal ground connection,
The second end of isolating transformer T2 primary side is connect after resistance R46 with the output end of auxiliary power circuit unit, in the present embodiment
Be positive 12V, and isolating transformer T2 pair side first end is connect with the anode of diode D22, the cathode and triode of diode D22
The emitter of Q11 connects, isolating transformer T2 pair side second end ground connection.
Auxiliary power circuit unit as shown in Figure 3 is arranged bridge rectifier module, the output plus terminal of the bridge rectifier module and
Negative terminal bridging has capacitor C1, and the output plus terminal of the bridge rectifier module is also connect with the collector of triode Q1, the triode
The transmitting of Q1 extremely circuit output end, base stage are connect with the emitter of triode Q2, and the base stage of triode Q2 is after capacitor C6
Ground connection, collector are connect with the collector of the triode Q1 all the way, and another way connects after resistance R25 with the negative terminal of diode D4
It connects, the negative terminal of the positive ending grounding of diode D4, the diode D4 is also connect with the base stage of triode Q2.
The working principle of the present embodiment: in engine work, capacitor C9 passes through the charging accumulation of energy of bridge rectifier unit,
In the case where no extraneous misfire signals input, photoelectric isolation module IC5 output end is without output, and zener diode D21 is without defeated
Out, in the case where extraneous misfire signals have input, photoelectric isolation module IC5 exports both ends conducting, and zener diode D21 is just
Pole earth-continuity, triode Q12 base stage obtain it is electric, thus control triode Q12, triode Q14 and triode Q11 conducting；Simultaneously
Photoelectric isolation module IC4 output end exports electric signal, and metal-oxide-semiconductor Q3 conducting issues pwm control signal, PWM charge control module
The first output end of IC6 is connected with second output terminal, and isolating transformer T2 primary side obtains electric, secondary side output electric signal, quickly to capacitor
C9 charges, and drives silicon-controlled Q4 to be connected using the energy of capacitor C9, realizes that engine quickly stops working in five seconds and shuts down.
Claims (8)
1. a kind of novel fast automatic control circuit of engine misses, it is characterised in that: it is provided with flame-out control switch unit, it should
The output switch ends of flame-out control switch unit are connect with the anode of flame-out line and negative terminal respectively；
The anode and negative terminal of the flame-out line are also connect with the input terminal of rectification unit respectively, the output end of the rectification unit and storage
The input terminal connection of energy unit, the output end of the energy-storage units are connect with the input terminal of flameout control circuit unit, the flame-out control
The output end of circuit unit processed is connect with the control terminal of the flame-out control switch unit, the control of the flameout control circuit unit
End processed is connect with flame-out control signal element；
Be additionally provided with pwm switching signal control circuit unit, the pwm switching signal control circuit unit first input end with it is described
The output end of rectification unit connects, and the second input terminal is connect with the output end of auxiliary power circuit unit, the pwm switching signal
The control terminal of control circuit unit is connect with the flame-out control signal element, the control of output end and isolation boosting circuit unit
End connection, the output end of the isolation boosting circuit unit are connect with the input terminal of the flameout control circuit unit.
2. the novel fast automatic control circuit of engine misses according to claim 1, it is characterised in that: the energy-storage units
It is provided with capacitor C9, capacitor C9 is connected in parallel on the positive-negative output end of the rectification unit, and the both ends of capacitor C9, which also bridge, to be had
The negative terminal of zener diode D16, zener diode D16 are VCC output end.
3. the novel fast automatic control circuit of engine misses according to claim 1, it is characterised in that: the flame-out control
Circuit unit is provided with triode Q11, the emitter of triode Q11 respectively with the output end of the energy-storage units and be isolated rise
The output end of volt circuit unit connects, and collector is grounded after resistance R39 and R42, base stage all the way after resistance R36 with triode
The emitter of Q11 connects, and another way is connect after R38 with the collector of triode Q14, the emitter ground connection of triode Q14,
Base stage is connected between the resistance R39 and R42；
The emitter of the triode Q11 is also connect after resistance R35 with the negative terminal of zener diode D21, the zener diode
The anode of D21 is connect after resistance R40 with the base stage of triode Q12 all the way, the collector and the triode of triode Q12
The collector of Q14 connects, emitter ground connection, the anode another way of the zener diode D21 and control signal element of stopping working
Output end connection.
4. the novel fast automatic control circuit of engine misses according to claim 1, it is characterised in that: the flame-out control
Switch unit is provided with silicon-controlled Q4, and the anode of the silicon-controlled Q4 is connect with the anode of flame-out line, the cathode of cathode and flame-out line
Connection, control electrode are connect after resistance R33 with the cathode of diode D20, the anode of diode D20 and the flame-out control electricity
The output end of road unit connects；
The control electrode of the silicon-controlled Q4 is also grounded after resistance R31, and also bridging at the both ends resistance R31 has capacitor C21.
5. the novel fast automatic control circuit of engine misses according to claim 3, it is characterised in that: be additionally provided with auxiliary
Power circuit unit, the auxiliary power circuit unit are arranged bridge rectifier module, the output plus terminal of the bridge rectifier module and negative
End bridging has capacitor C1, and the output plus terminal of the bridge rectifier module is also connect with the collector of triode Q1, triode Q1
Transmitting extremely circuit output end, base stage connect with the emitter of triode Q2, and the base stage of triode Q2 is followed by through capacitor C6
Ground, collector are connect with the collector of the triode Q1 all the way, and another way connects after resistance R25 with the negative terminal of diode D4
It connects, the negative terminal of the positive ending grounding of diode D4, the diode D4 is also connect with the base stage of triode Q2.
6. the novel fast automatic control circuit of engine misses according to claim 5, it is characterised in that: the flame-out control
Signal element is provided with photoelectric isolation module IC5, the transmitting of the input anode and the triode Q1 of photoelectric isolation module IC5
Pole connection, input negative terminal are misfire signals input terminal, the output plus terminal and the zener diode of the photoelectric isolation module IC5
The anode of D21 connects, and exports negativing ending grounding.
7. the novel fast automatic control circuit of engine misses according to claim 1, it is characterised in that: the PWM switch
Signal control circuit unit is provided with photoelectric isolation module IC4, and photoelectric isolation module IC4 first input end and the rectification are single
The output plus terminal connection of member, the second input terminal are connect with the output negative terminal of the rectification unit, the photoelectric isolation module IC4's
First output end is connect with the output end of auxiliary power circuit unit, second output terminal after resistance R34 with diode D19 just
Pole connection, the cathode of diode D19 are connect with the flame-out control signal element；
The anode of the diode D19 is also connect through resistance R32 with metal-oxide-semiconductor grid, the source electrode ground connection of the metal-oxide-semiconductor, in metal-oxide-semiconductor
Also bridging has resistance R30 between source electrode and grid, and the drain electrode of the metal-oxide-semiconductor is connect with the control terminal of isolation boosting circuit unit.
8. the novel fast automatic control circuit of engine misses according to claim 1, it is characterised in that: the isolation boosting
Circuit unit is provided with isolating transformer T2, and isolating transformer T2 pair side first end is defeated with the flameout control circuit unit
Enter end connection, second end ground connection, the first output of the isolating transformer T2 primary side first end and PWM charge control module IC6
End connection, PWM charge control module IC6 second output terminal ground connection, the isolating transformer T2 primary side second end with it is described
The output end of auxiliary power circuit unit connects, and control terminal is connect with the pwm switching signal control circuit unit output end, institute
State the control terminal of PWM charge control module IC6 upon the reception of control signals, the first output end is connected with second output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920345814.7U CN209687612U (en) | 2019-03-18 | 2019-03-18 | A kind of novel fast automatic control circuit of engine misses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920345814.7U CN209687612U (en) | 2019-03-18 | 2019-03-18 | A kind of novel fast automatic control circuit of engine misses |
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| Publication Number | Publication Date |
|---|---|
| CN209687612U true CN209687612U (en) | 2019-11-26 |
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ID=68605221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920345814.7U Active CN209687612U (en) | 2019-03-18 | 2019-03-18 | A kind of novel fast automatic control circuit of engine misses |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763902A (en) * | 2019-03-18 | 2019-05-17 | 重庆建兴智能仪表有限责任公司 | A kind of fast automatic control circuit of engine misses |
-
2019
- 2019-03-18 CN CN201920345814.7U patent/CN209687612U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763902A (en) * | 2019-03-18 | 2019-05-17 | 重庆建兴智能仪表有限责任公司 | A kind of fast automatic control circuit of engine misses |
| CN109763902B (en) * | 2019-03-18 | 2022-03-08 | 重庆建兴智能仪表有限责任公司 | Quick automatic control circuit for engine flameout |
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