CN212774573U - Control type igniter - Google Patents
Control type igniter Download PDFInfo
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- CN212774573U CN212774573U CN202020594759.8U CN202020594759U CN212774573U CN 212774573 U CN212774573 U CN 212774573U CN 202020594759 U CN202020594759 U CN 202020594759U CN 212774573 U CN212774573 U CN 212774573U
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Abstract
A controlled igniter, comprising an ignition circuit, wherein: the circuit also comprises a power supply circuit, a delay circuit, a comparison circuit and a flameout circuit; the power supply circuit supplies power to the delay circuit and the comparison circuit respectively, the input end of the delay circuit is connected with the input end of the comparison circuit, the output end of the comparison circuit is connected with the control end of the flameout circuit, and the flameout circuit is used for controlling the ignition circuit. The control flameout circuit is added on the basis of the original igniter principle, the igniter is controlled by the CO module, the CO module sends out a control signal when CO does not exceed the standard, the igniter continuously ignites, and once the CO concentration exceeds the standard or the CO is not connected, the CO module does not send out a signal, the igniter loses control and immediately flameout. The engine stops and does not generate waste gas or CO any more, thereby ensuring the human body to be complete.
Description
Technical Field
The utility model relates to an automotive electronics field, concretely relates to control type point firearm.
Background
The commercial power igniter only has an ignition function and a simple flameout function, and can be stopped only by manually flameout. Along with the development of society, people have higher and higher requirements on safety, and developed countries in Europe and America propose that an igniter is required to automatically extinguish under the condition that the concentration of CO (carbon monoxide) in the use environment exceeds standard, so that CO poisoning is avoided, the personal safety is guaranteed, and the igniter is required to have an automatic extinguishing function besides an ignition function. The prior igniter has no automatic flameout function and cannot ensure personal safety.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a control type point firearm, concrete technical scheme is as follows:
a controlled igniter, comprising an ignition circuit, wherein: the circuit also comprises a power supply circuit, a delay circuit, a comparison circuit and a flameout circuit;
the power supply circuit supplies power to the delay circuit and the comparison circuit respectively, the input end of the delay circuit is connected with the input end of the comparison circuit, the output end of the comparison circuit is connected with the control end of the flameout circuit, and the flameout circuit is used for controlling the ignition circuit.
For better realization the utility model discloses, can further be: the power supply circuit comprises a diode D1, a diode D6, a resistor R10, a resistor R18 and a capacitor C2;
the anode of the diode D1 is connected to the terminal B of the primary coil T1, the cathode of the diode D1 is connected to the anode of the capacitor C2 via the resistor R10, the cathode of the capacitor C2 is connected to the anode of the diode D6, the cathode of the diode D6 is connected to the terminal a of the primary coil T1, the anode of the diode D6 is further connected to the anode of the diode D4, the cathode of the diode D4 is connected to the terminal B of the primary coil T1, a resistor R18 is further connected in parallel to both ends of the capacitor C2, and the anode of the capacitor C2 is the output terminal of the power supply circuit.
Further: the delay circuit comprises a resistor R12, a capacitor C5 and a diode D3, wherein the resistor R12 is connected with the capacitor C5 in series, the other end of the resistor R12 is connected with the output end of the power supply circuit, the other end of the capacitor C5 is connected with the anode of the diode D6, the common end of the capacitor C5 and the resistor R12 is connected with the anode of the diode D3, and the cathode of the diode D3 is connected with the anode of the capacitor C2;
and the common end of the resistor R12 and the capacitor C5 is the output end of the delay circuit.
Further: the comparison circuit comprises a comparator U1, a resistor R11, a resistor R17 and a capacitor C6;
one end of the resistor R11 is connected with the output end of the power supply circuit, the other end of the resistor R11 is connected with one end of the resistor R17, and the other end of the resistor R17 is connected with the anode of the diode D6;
the common end of the resistor R11 and the resistor 17 is connected with the reverse end of a comparator U1, the common end of the comparator U1 is connected with the output end of the delay circuit, and the output end of the comparator U1 is the output end of the comparison circuit.
Further: the flameout circuit comprises a resistor R21, a diode D7, a resistor R15, a thyristor Q10, a capacitor C7, a diode D4, a diode D5 and a capacitor C9;
one end of the resistor R21 is connected with the output end of the comparator U1, the other end of the resistor R21 is connected with the anode of the diode D7, the cathode of the diode D7 is connected with the control end of the controllable silicon Q10, the anode of the triode Q10 is connected with the A end of the primary coil T1, and the cathode of the triode Q10 is connected with the anode of the diode D6 through the resistor R20;
the cathode of the diode D7 is also connected with one end of a resistor R15, and the other end of the resistor R15 is connected with the anode of a diode D6 through a capacitor C7;
the cathode of the triode Q10 is connected with the anode of a diode D5, and the cathode of the diode D5 is connected with the common end of the resistor R5 and the capacitor C7;
the control terminal of the thyristor Q10 is also connected to the anode of a diode D6 via a capacitor C9.
Further: a first controlled point is arranged between the resistor R21 and the anode of the diode D7, a second controlled point is arranged between the capacitor C7 and the anode of the diode D6, and a control switch S1 is arranged between the first controlled point and the second controlled point.
The utility model has the advantages that: firstly, a control flameout circuit is added on the basis of the original igniter principle, the igniter is controlled by a CO module, the CO module sends out a control signal under normal conditions (CO does not exceed the standard), the igniter continuously ignites, once the CO concentration exceeds the standard or the CO module is not connected, the CO module does not send out a signal, the igniter loses control, and flameout is immediately carried out. The engine stops and does not generate waste gas or CO any more, thereby ensuring the human body to be complete.
And secondly, the device is matched with a CO module for use, so that the CO concentration of the working environment of the engine is effectively monitored, once the CO concentration exceeds the standard, the device can be reliably flamed out, the personal safety is guaranteed, and the device cannot be measured by using the benefit.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
fig. 2 is a detailed circuit configuration diagram.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
As shown in fig. 1 and 2: a control type igniter comprises an ignition circuit, a power supply circuit, a delay circuit, a comparison circuit and a flameout circuit;
the power supply circuit supplies power to the delay circuit and the comparison circuit respectively, the input end of the delay circuit is connected with the input end of the comparison circuit, the output end of the comparison circuit is connected with the control end of the flameout circuit, and the flameout circuit is used for controlling the ignition circuit.
In this embodiment, the power circuit has a structure that the power circuit includes a diode D1, a diode D6, a resistor R10, a resistor R18, and a capacitor C2;
the anode of the diode D1 is connected to the terminal B of the primary winding T1, the cathode of the diode D1 is connected to the anode of the capacitor C2 via the resistor R10, the cathode of the capacitor C2 is connected to the anode of the diode D6, the cathode of the diode D6 is connected to the terminal a of the primary winding T1, the anode of the diode D6 is further connected to the anode of the diode D4, the cathode of the diode D4 is connected to the terminal B of the primary winding T1, a resistor R18 is further connected in parallel to both ends of the capacitor C2, and the anode of the capacitor C2 is the output terminal of the power supply circuit.
The delay circuit comprises a resistor R12, a capacitor C5 and a diode D3, wherein the resistor R12 is connected with the capacitor C5 in series, the other end of the resistor R12 is connected with the output end of the power circuit, the other end of the capacitor C5 is connected with the anode of the diode D6, the common end of the capacitor C5 and the resistor R12 is connected with the anode of the diode D3, and the cathode of the diode D3 is connected with the anode of the capacitor C2;
the common end of the resistor R12 and the capacitor C5 is the output end of the delay circuit.
The comparison circuit comprises a comparator U1, a resistor R11, a resistor R17 and a capacitor C6;
one end of the resistor R11 is connected with the output end of the power supply circuit, the other end of the resistor R11 is connected with one end of the resistor R17, and the other end of the resistor R17 is connected with the anode of the diode D6;
the common end of the resistor R11 and the resistor 17 is connected with the reverse end of the comparator U1, the common end of the comparator U1 is connected with the output end of the delay circuit, and the output end of the comparator U1 is the output end of the comparison circuit.
The flameout circuit comprises a resistor R21, a diode D7, a resistor R15, a thyristor Q10, a capacitor C7, a diode D4, a diode D5 and a capacitor C9;
one end of a resistor R21 is connected with the output end of a comparator U1, the other end of the resistor R21 is connected with the anode of a diode D7, the cathode of the diode D7 is connected with the control end of a thyristor Q10, the anode of the thyristor Q10 is connected with the A end of a primary coil T1, and the cathode of the thyristor Q10 is connected with the anode of the diode D6 through a resistor R20;
the cathode of the diode D7 is also connected with one end of a resistor R15, and the other end of the resistor R15 is connected with the anode of a diode D6 through a capacitor C7;
the cathode of the thyristor Q10 is connected with the anode of a diode D5, and the cathode of the diode D5 is connected with the common end of a resistor R5 and a capacitor C7;
the control terminal of the thyristor Q10 is also connected to the anode of a diode D6 via a capacitor C9.
The utility model discloses the principle: the power supply circuit works in the process that the anode of the diode D1 is connected with the B end of the primary coil, the cathode of the diode D1 is connected with the resistor R10, the voltage generated by the primary coil is charged to the capacitor C2 after being limited by the diode D1 and the resistor R10, and then returns to the A end of the primary coil through the diode D6.
The capacitor C2 supplies power to the delay circuit and the comparison circuit, the voltage stabilizing diode D2 is used for stabilizing the voltage at two ends of the capacitor C2, the capacitor C3 plays a role in filtering, and the resistor R18 plays a role in discharging the electric quantity of the capacitor C2.
The working process of the delay circuit is that the electric quantity of the capacitor C2 is slowly charged to the capacitor C5 through the resistor R12, a certain time is needed for the C5 voltage to be charged to be equal to the voltage of the comparison circuit, the time is called delay time, and the diode D3 is used for quickly discharging the electric quantity of the capacitor C5 after shutdown.
The comparator circuit takes the comparator U1 as a center, and the resistor R11 is connected with the resistor R17 to form a divided voltage which is input to the reverse input end of the comparator U1 and is used as a reference voltage of the comparator U1.
The capacitor C6 plays a role in filtering and filtering out reference voltage clutter;
the common terminal of the resistor R12 and the capacitor C5 in the delay circuit is used as an input terminal to input a signal to the same-direction input terminal of the comparator U1.
The working principle of the whole comparison circuit is that after the circuit is powered on, a reference voltage is immediately input to the reverse input end of the comparator U1 as a voltage U-according to a proportional voltage formed by the voltage division ratio of the resistor R11 and the resistor R17.
The resistor R12 in the delay circuit has larger resistance and the capacitor C5 has larger capacitance, the voltage of the capacitor C5 rises according to an RC charging curve, the voltage at two ends of the capacitor C5 is the voltage of the same-phase input end of the comparator, the voltage records that the voltage is U +, the initial time of power-on is U-larger than U +, the output end of the comparator U1, the connection end of the comparator U1 and the resistor R21 in the figure has no voltage output, the subsequent flameout circuit is not influenced, and the igniter normally works.
With the lapse of time (time delay), the voltage at the two ends of the capacitor C5 gradually rises, namely the voltage at the non-inverting input end gradually rises, and because the non-inverting input end has no resistance voltage division, the voltage at the non-inverting input end finally exceeds the voltage at the inverting input end, namely U + is greater than U-, at this moment, the comparator U1 outputs positive voltage, and provides driving voltage to the following flameout circuit through the resistor R21.
The working principle of the flameout circuit is that when the comparison circuit has no output voltage, namely the voltage at the resistor R21 is zero, the control electrode of the controlled silicon Q10 has no driving voltage, the controlled silicon Q10 is not conducted, the voltage of the primary coil T1 is not influenced, and the ignition is normally carried out;
when the comparison circuit outputs positive voltage, the voltage drives the control electrode of the thyristor Q10 through the resistor R21 and the diode D7, the thyristor Q10 conducts the voltage of the primary coil T1, and the primary coil T1 cannot provide normal voltage for the ignition circuit to enable the igniter to extinguish.
The resistor R20 forms feedback voltage when the thyristor Q10 is conducted, the feedback voltage is charged to the capacitor C7 through the diode D5, meanwhile, driving voltage is provided for the control electrode of the resistor R15, the thyristor Q10 is always in a conducting state, and therefore the igniter is always in a flameout state until the engine stops.
Meanwhile, controlled points are connected in the flameout circuit, namely the connection point of the resistor R21 and the diode D7 and the negative electrode of the capacitor C7.
When the two points are in open circuit, once the comparison voltage U + is greater than U-, the comparator U1 outputs positive voltage, and the igniter is extinguished according to the principle of an extinguishing circuit;
when the two points are closed, no matter what the comparison voltage is, the control electrode of the flameout circuit can not obtain the driving voltage, the flameout circuit does not influence the ignition circuit, and the igniter ignites normally. The advantage that connects like this is that outside CO control module must work effectively, plays real-time monitoring CO concentration, ensures personal safety.
Claims (6)
1. A controlled igniter, comprising an ignition circuit, wherein: the circuit also comprises a power supply circuit, a delay circuit, a comparison circuit and a flameout circuit;
the power supply circuit supplies power to the delay circuit and the comparison circuit respectively, the input end of the delay circuit is connected with the input end of the comparison circuit, the output end of the comparison circuit is connected with the control end of the flameout circuit, and the flameout circuit is used for controlling the ignition circuit.
2. A controlled igniter as defined in claim 1, wherein: the power supply circuit comprises a diode D1, a diode D6, a resistor R10, a resistor R18 and a capacitor C2;
the anode of the diode D1 is connected to the terminal B of the primary coil T1, the cathode of the diode D1 is connected to the anode of the capacitor C2 via the resistor R10, the cathode of the capacitor C2 is connected to the anode of the diode D6, the cathode of the diode D6 is connected to the terminal a of the primary coil T1, the anode of the diode D6 is further connected to the anode of the diode D4, the cathode of the diode D4 is connected to the terminal B of the primary coil T1, a resistor R18 is further connected in parallel to both ends of the capacitor C2, and the anode of the capacitor C2 is the output terminal of the power supply circuit.
3. A controlled igniter as defined in claim 2, wherein: the delay circuit comprises a resistor R12, a capacitor C5 and a diode D3, wherein the resistor R12 is connected with the capacitor C5 in series, the other end of the resistor R12 is connected with the output end of the power supply circuit, the other end of the capacitor C5 is connected with the anode of the diode D6, the common end of the capacitor C5 and the resistor R12 is connected with the anode of the diode D3, and the cathode of the diode D3 is connected with the anode of the capacitor C2;
and the common end of the resistor R12 and the capacitor C5 is the output end of the delay circuit.
4. A controlled igniter as defined in claim 3, wherein: the comparison circuit comprises a comparator U1, a resistor R11, a resistor R17 and a capacitor C6;
one end of the resistor R11 is connected with the output end of the power supply circuit, the other end of the resistor R11 is connected with one end of the resistor R17, and the other end of the resistor R17 is connected with the anode of the diode D6;
the common end of the resistor R11 and the resistor 17 is connected with the reverse end of a comparator U1, the common end of the comparator U1 is connected with the output end of the delay circuit, and the output end of the comparator U1 is the output end of the comparison circuit.
5. A controlled igniter as defined in claim 4, wherein: the flameout circuit comprises a resistor R21, a diode D7, a resistor R15, a thyristor Q10, a capacitor C7, a diode D4, a diode D5 and a capacitor C9;
one end of the resistor R21 is connected with the output end of the comparator U1, the other end of the resistor R21 is connected with the anode of the diode D7, the cathode of the diode D7 is connected with the control end of the controllable silicon Q10, the anode of the controllable silicon Q10 is connected with the A end of the primary coil T1, and the cathode of the controllable silicon Q10 is connected with the anode of the diode D6 through the resistor R20;
the cathode of the diode D7 is also connected with one end of a resistor R15, and the other end of the resistor R15 is connected with the anode of a diode D6 through a capacitor C7;
the cathode of the triode Q10 is connected with the anode of a diode D5, and the cathode of the diode D5 is connected with the common end of the resistor R5 and the capacitor C7;
the control terminal of the transistor Q10 is also connected to the anode of a diode D6 via a capacitor C9.
6. A controlled igniter as defined in claim 5, wherein: a first controlled point is arranged between the resistor R21 and the anode of the diode D7, a second controlled point is arranged between the capacitor C7 and the anode of the diode D6, and a control switch S1 is arranged between the first controlled point and the second controlled point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020594759.8U CN212774573U (en) | 2020-04-17 | 2020-04-17 | Control type igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020594759.8U CN212774573U (en) | 2020-04-17 | 2020-04-17 | Control type igniter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212774573U true CN212774573U (en) | 2021-03-23 |
Family
ID=75065635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020594759.8U Active CN212774573U (en) | 2020-04-17 | 2020-04-17 | Control type igniter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212774573U (en) |
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2020
- 2020-04-17 CN CN202020594759.8U patent/CN212774573U/en active Active
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