CN219554839U - Multi-drive ignition circuit - Google Patents
Multi-drive ignition circuit Download PDFInfo
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- CN219554839U CN219554839U CN202320652958.3U CN202320652958U CN219554839U CN 219554839 U CN219554839 U CN 219554839U CN 202320652958 U CN202320652958 U CN 202320652958U CN 219554839 U CN219554839 U CN 219554839U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model discloses a multi-drive ignition circuit, wherein an oscillation unit comprises a capacitor and a PNP triode, and a driving unit comprises an NPN triode and a plurality of ignition driving input ends; all ignition driving input ends are electrically connected with bases of NPN type triodes, emitters of the NPN type triodes are grounded, collectors of the NPN type triodes are electrically connected with bases of PNP triodes, one end of a capacitor is electrically connected with the bases of the PNP triodes, the other end of the capacitor is electrically connected with emitters of the PNP triodes, the emitters of the PNP triodes are electrically connected with a power supply, collectors of the PNP triodes are electrically connected with primary coils of a step-up transformer, and the primary coils of the step-up transformer are grounded; the ignition modules are in one-to-one correspondence with the ignition driving input ends, and the secondary coils of the step-up transformers are respectively and electrically connected with all the ignition modules through the inversion step-up modules. The multi-drive ignition circuit solves the problems of complexity and high cost of the existing ignition circuit.
Description
Technical Field
The utility model relates to the technical field of integrated stoves, in particular to a multi-drive ignition circuit.
Background
At present, most of household gas stoves adopt an integrated stove, and an ignition module is adopted to be matched with a switch of the gas stove for use during ignition. For convenient use, the integrated kitchen range is generally provided with two or more gas stoves for cooking and soup cooking, and each integrated kitchen range is provided with an ignition module corresponding to the integrated kitchen range. However, in the existing integrated cooker, each ignition module needs to be provided with an ignition circuit independently, so that the more the ignition modules are provided, the more the electric components are used, and the more the whole ignition circuit is complex, so that the cost is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a multi-drive ignition circuit to solve the problems.
The technical scheme adopted for solving the technical problems is as follows: a multi-drive ignition circuit comprises a direct current boosting module, an inversion boosting module and a plurality of ignition modules;
the direct-current boosting module comprises an oscillating unit, a driving unit and a boosting transformer T1, wherein the oscillating unit comprises a capacitor C6 and a PNP triode Q1, and the driving unit comprises an NPN triode Q2 and a plurality of ignition driving input ends; all the ignition driving input ends are electrically connected with the base electrode of the NPN type triode Q2, the emitting electrode of the NPN type triode Q2 is grounded, the collecting electrode of the NPN type triode Q2 is electrically connected with the base electrode of the PNP triode Q1, one end of a capacitor C6 is electrically connected with the base electrode of the PNP triode Q1, the other end of the capacitor C6 is electrically connected with the emitting electrode of the PNP triode Q1, the emitting electrode of the PNP triode Q1 is electrically connected with a +5V power supply, the collecting electrode of the PNP triode Q1 is electrically connected with the primary coil of the step-up transformer T1, and the primary coil of the step-up transformer T1 is grounded;
the ignition modules are in one-to-one correspondence with the ignition driving input ends, and secondary coils of the step-up transformer T1 are respectively and electrically connected with all the ignition modules through the inversion step-up modules.
It is worth to be noted that, the inversion boosting module includes a diode D2, an energy storage capacitor C4, a voltage stabilizing tube ZD1 and a plurality of silicon controlled electronic switches SR; the controllable silicon electronic switches SR are in one-to-one correspondence with the ignition driving input ends, and the controllable silicon electronic switches SR are in one-to-one correspondence with the ignition modules;
the positive electrode of the diode D2 is electrically connected with one end of the secondary coil of the step-up transformer T1, the negative electrode of the diode D2 is electrically connected with one end of the energy storage capacitor C4, and the other end of the energy storage capacitor C4 is grounded; the negative electrode of the voltage stabilizing tube ZD1 is electrically connected with the other end of the secondary coil of the step-up transformer T1, the positive electrode of the voltage stabilizing tube ZD1 is electrically connected with the control ends of all the silicon controlled electronic switches SR, the positive electrode of the silicon controlled electronic switches SR is electrically connected with one end of the energy storage capacitor C4, and the negative electrode of the silicon controlled electronic switches SR is electrically connected with the corresponding ignition module.
Optionally, the ignition module includes a high-voltage package T2 and an ignition needle CP, a negative electrode of the thyristor electronic switch SR is electrically connected with one end of a primary coil of the high-voltage package T2, the other end of the primary coil of the high-voltage package T2 is grounded, one end of a secondary coil of the high-voltage package T2 is electrically connected with the ignition needle CP, and the other end of the secondary coil of the high-voltage package T2 is grounded.
Preferably, the inversion boosting module further includes a plurality of diodes D12, the diodes D12 are in one-to-one correspondence with the ignition modules, the anodes of the diodes D12 are grounded, and the cathodes of the diodes D12 are electrically connected with one end of the primary coil of the high-voltage package T2 corresponding to the cathodes.
Specifically, the multi-drive ignition circuit further comprises a filtering module, the filtering module comprises a diode D3, an electrolytic capacitor C18 and a capacitor C9, the positive electrode of the electrolytic capacitor C18 is electrically connected with the negative electrode of the diode D3 after being connected with one end of the capacitor C9 in parallel, one end of the capacitor C9 is electrically connected with the emitter of the PNP triode Q1, the negative electrode of the electrolytic capacitor C18 is grounded after being connected with the other end of the capacitor C9 in parallel, and the positive electrode of the diode D3 is electrically connected with a +5V power supply.
It is worth to say that the inversion boosting module further comprises a load resistor group, and the negative electrode of the diode D2 is grounded through the load resistor group.
Optionally, the inversion boosting module further includes a plurality of diodes D8, the diodes D8 are in one-to-one correspondence with the ignition driving input ends, the negative electrodes of the diodes D8 are electrically connected with the ignition driving input ends, and the positive electrodes of the diodes D8 are electrically connected with the positive electrodes of the voltage stabilizing tubes ZD 1.
The utility model has the beneficial effects that: in the multi-drive ignition circuit, all ignition drive input ends are electrically connected with the same oscillating unit, so that the purpose of providing high ignition voltage for a plurality of ignition modules can be realized by only one step-up transformer T1 and one inversion step-up module. Compared with a complete ignition circuit corresponding to each ignition module, the multi-drive ignition circuit has fewer electric components, thereby simplifying the ignition circuit and reducing the cost.
Drawings
FIG. 1 is a circuit diagram of a multi-drive ignition circuit in one embodiment of the present utility model;
FIG. 2 is a circuit diagram of an oscillating unit and a filtering module in one embodiment of the utility model;
FIG. 3 is a circuit diagram of an inverter boost module in one embodiment of the utility model;
in the figure: 11 an oscillation unit; 12 a driving unit; a 20 inverter boost module; a 30 filtering module; 40 ignition module.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1-3, a multi-drive ignition circuit includes a dc boost module, an inverter boost module 20, and a plurality of ignition modules 40;
the direct-current boosting module comprises an oscillating unit 11, a driving unit 12 and a boosting transformer T1, wherein the oscillating unit 11 comprises a capacitor C6 and a PNP triode Q1, and the driving unit 12 comprises an NPN triode Q2 and a plurality of ignition driving input ends; all the ignition driving input ends are electrically connected with the base electrode of the NPN type triode Q2, the emitting electrode of the NPN type triode Q2 is grounded, the collecting electrode of the NPN type triode Q2 is electrically connected with the base electrode of the PNP triode Q1, one end of a capacitor C6 is electrically connected with the base electrode of the PNP triode Q1, the other end of the capacitor C6 is electrically connected with the emitting electrode of the PNP triode Q1, the emitting electrode of the PNP triode Q1 is electrically connected with a +5V power supply, the collecting electrode of the PNP triode Q1 is electrically connected with the primary coil of the step-up transformer T1, and the primary coil of the step-up transformer T1 is grounded;
the ignition modules 40 are in one-to-one correspondence with the ignition driving input ends, and the secondary coils of the step-up transformer T1 are electrically connected with all the ignition modules 40 through the inversion step-up modules 20, respectively.
In the multi-drive ignition circuit, all the ignition drive inputs are electrically connected to the same oscillating unit 11, so that only one step-up transformer T1 and one inversion step-up module 20 are needed to supply the high ignition voltage to the plurality of ignition modules 40. The multi-drive ignition circuit uses fewer electrical components than a complete ignition circuit for each ignition module 40, thereby simplifying the ignition circuit and reducing cost.
When the micro switch on the gas appliance is turned on, the MCU control pin outputs a high level to the corresponding ignition driving input end, the base electrode of the NPN triode Q2 is high level, so that the collector electrode and the emitter electrode of the NPN triode Q2 are conducted, one end of the capacitor C6 is grounded, the base electrode of the PNP triode Q1 obtains a voltage, the emitter electrode and the collector electrode of the PNP triode Q1 are conducted, the primary coil of the boost transformer T1 is electrified, the secondary coil of the boost transformer T1 generates a high voltage and acts on the inversion boost module 20, and then the ignition module 40 works to realize ignition.
It should be noted that the inverter boost module 20 includes a diode D2, an energy storage capacitor C4, a voltage regulator ZD1 and a plurality of thyristors SR; the scr electronic switches SR are in one-to-one correspondence with the ignition driving input ends, and the scr electronic switches SR are in one-to-one correspondence with the ignition modules 40;
the positive electrode of the diode D2 is electrically connected with one end of the secondary coil of the step-up transformer T1, the negative electrode of the diode D2 is electrically connected with one end of the energy storage capacitor C4, and the other end of the energy storage capacitor C4 is grounded; the negative electrode of the voltage stabilizing tube ZD1 is electrically connected with the other end of the secondary coil of the step-up transformer T1, the positive electrode of the voltage stabilizing tube ZD1 is electrically connected with the control ends of all the silicon controlled electronic switches SR, the positive electrode of the silicon controlled electronic switch SR is electrically connected with one end of the energy storage capacitor C4, and the negative electrode of the silicon controlled electronic switch SR is electrically connected with the corresponding ignition module 40.
The ignition module 40 includes a high-voltage package T2 and an ignition needle CP, the negative electrode of the thyristor electronic switch SR is electrically connected with one end of the primary coil of the high-voltage package T2, the other end of the primary coil of the high-voltage package T2 is grounded, one end of the secondary coil of the high-voltage package T2 is electrically connected with the ignition needle CP, and the other end of the secondary coil of the high-voltage package T2 is grounded.
The inverter boost module 20 further includes a plurality of diodes D12, the diodes D12 are in one-to-one correspondence with the ignition module 40, the positive electrodes of the diodes D12 are grounded, and the negative electrodes of the diodes D12 are electrically connected with one end of the primary coil of the high-voltage package T2 corresponding thereto.
When the micro switch on the gas appliance is turned on, the MCU control pin outputs a high level to the ignition driving input end, the NPN triode Q2 is conducted, the collector electrode of the NPN triode Q2 is equivalent to the ground, and the oscillation unit 11 works. The oscillating voltage generated by the oscillating unit 11 is boosted by the boosting transformer T1, rectified by the diode D2, and charged into the energy storage capacitor C4, and the voltage of the energy storage capacitor C4 is continuously increased. When the voltage of the energy storage capacitor C4 rises to about 200V, the voltage stabilizing tube ZD1 breaks down in the positive half cycle of the voltage of the 6 pin of the step-up transformer T1, so that the control end of the silicon controlled switch SR is electrified, and the silicon controlled switch SR is triggered to be conducted. The energy storage capacitor C4 discharges through a loop formed by the primary coil of the high-voltage package T2 and the thyristor switch SR, current generates induced electromotive force at the primary coil of the high-voltage package T2, the induced electromotive force is boosted by the high-voltage package T2, and high-voltage discharge is generated at the secondary coil of the high-voltage package T2, so that a positive half cycle of a high-voltage waveform is formed; the voltage gradually decreases during the discharge, and when the voltage decreases to approximately 0V, the current flowing through the thyristor switch SR is smaller than its own holding current and turns off. The primary coil of the high-voltage package T2 discharges through the diode D12, the diode D2 and the energy storage capacitor C4, and is boosted through the high-voltage package T2, and high-voltage discharge is generated in the secondary coil, so that a high-voltage waveform negative half cycle is formed. When the thyristor switch SR is turned off, the energy storage capacitor C4 is continuously charged through the direct-current boosting module, the voltage is continuously increased, and the previous process is repeated, so that the secondary coil of the high-voltage package T2 can generate high voltage of about 12KV during operation, the high voltage breaks down air, sparks are generated, and the fuel gas is ignited, so that the ignition effect is achieved. In this embodiment, the MCU sends a high level to the ignition driving input and also sends a signal to allow start to the ignition module 40 corresponding to the ignition driving input.
Optionally, the multi-driving ignition circuit further includes a filter module 30, the filter module 30 includes a diode D3, an electrolytic capacitor C18, and a capacitor C9, where an anode of the electrolytic capacitor C18 is electrically connected to a cathode of the diode D3 after being connected in parallel with one end of the capacitor C9, one end of the capacitor C9 is electrically connected to an emitter of the PNP triode Q1, the cathode of the electrolytic capacitor C18 is grounded after being connected to the other end of the capacitor C9 in parallel, and an anode of the diode D3 is electrically connected to a +5v power supply. Thus, the stability of the oscillation module can be improved.
Preferably, the inverter boost module 20 further includes a load resistor group, in this embodiment, the load resistor group is a resistor R8 and a resistor R11 connected in series, and the negative electrode of the diode D2 is grounded through the load resistor group. When the energy storage capacitor C4 is full, the electric power is 0, the high-voltage direct-current power supply is almost empty, the voltage continues to rise, and the elements such as the thyristor electronic switch SR and the energy storage capacitor C4 can be damaged under the condition that no load resistor group is used for protection.
Specifically, the inverter boost module 20 further includes a plurality of diodes D8, the diodes D8 are in one-to-one correspondence with the ignition driving input terminals, the negative electrodes of the diodes D8 are electrically connected with the ignition driving input terminals, and the positive electrodes of the diodes D8 are electrically connected with the positive electrodes of the voltage stabilizing tubes ZD 1. The diode D8 plays an isolating role and can prevent the thyristor switch SR from triggering ignition by mistake.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (7)
1. A multi-drive ignition circuit, characterized by: the system comprises a direct current boosting module, an inversion boosting module and a plurality of ignition modules;
the direct-current boosting module comprises an oscillating unit, a driving unit and a boosting transformer T1, wherein the oscillating unit comprises a capacitor C6 and a PNP triode Q1, and the driving unit comprises an NPN triode Q2 and a plurality of ignition driving input ends; all the ignition driving input ends are electrically connected with the base electrode of the NPN type triode Q2, the emitting electrode of the NPN type triode Q2 is grounded, the collecting electrode of the NPN type triode Q2 is electrically connected with the base electrode of the PNP triode Q1, one end of a capacitor C6 is electrically connected with the base electrode of the PNP triode Q1, the other end of the capacitor C6 is electrically connected with the emitting electrode of the PNP triode Q1, the emitting electrode of the PNP triode Q1 is electrically connected with a +5V power supply, the collecting electrode of the PNP triode Q1 is electrically connected with the primary coil of the step-up transformer T1, and the primary coil of the step-up transformer T1 is grounded;
the ignition modules are in one-to-one correspondence with the ignition driving input ends, and secondary coils of the step-up transformer T1 are respectively and electrically connected with all the ignition modules through the inversion step-up modules.
2. A multi-drive ignition circuit according to claim 1, wherein: the inversion boosting module comprises a diode D2, an energy storage capacitor C4, a voltage stabilizing tube ZD1 and a plurality of silicon controlled electronic switches SR; the controllable silicon electronic switches SR are in one-to-one correspondence with the ignition driving input ends, and the controllable silicon electronic switches SR are in one-to-one correspondence with the ignition modules;
the positive electrode of the diode D2 is electrically connected with one end of the secondary coil of the step-up transformer T1, the negative electrode of the diode D2 is electrically connected with one end of the energy storage capacitor C4, and the other end of the energy storage capacitor C4 is grounded; the negative electrode of the voltage stabilizing tube ZD1 is electrically connected with the other end of the secondary coil of the step-up transformer T1, the positive electrode of the voltage stabilizing tube ZD1 is electrically connected with the control ends of all the silicon controlled electronic switches SR, the positive electrode of the silicon controlled electronic switches SR is electrically connected with one end of the energy storage capacitor C4, and the negative electrode of the silicon controlled electronic switches SR is electrically connected with the corresponding ignition module.
3. A multi-drive ignition circuit according to claim 2, wherein: the ignition module comprises a high-voltage package T2 and an ignition needle CP, wherein the negative electrode of the silicon controlled electronic switch SR is electrically connected with one end of a primary coil of the high-voltage package T2, the other end of the primary coil of the high-voltage package T2 is grounded, one end of a secondary coil of the high-voltage package T2 is electrically connected with the ignition needle CP, and the other end of the secondary coil of the high-voltage package T2 is grounded.
4. A multi-drive ignition circuit according to claim 3, wherein: the inversion boosting module further comprises a plurality of diodes D12, the diodes D12 are in one-to-one correspondence with the ignition modules, the anodes of the diodes D12 are grounded, and the cathodes of the diodes D12 are electrically connected with one end of a primary coil of the corresponding high-voltage package T2.
5. A multi-drive ignition circuit according to claim 1, wherein: the multi-drive ignition circuit further comprises a filtering module, the filtering module comprises a diode D3, an electrolytic capacitor C18 and a capacitor C9, the positive electrode of the electrolytic capacitor C18 is connected with the negative electrode of the diode D3 after being connected with one end of the capacitor C9 in parallel, one end of the capacitor C9 is electrically connected with the emitter of the PNP triode Q1, the negative electrode of the electrolytic capacitor C18 is connected with the other end of the capacitor C9 in parallel and then grounded, and the positive electrode of the diode D3 is electrically connected with a +5V power supply.
6. A multi-drive ignition circuit according to claim 2, wherein: the inversion boosting module further comprises a load resistor group, and the cathode of the diode D2 is grounded through the load resistor group.
7. A multi-drive ignition circuit according to claim 2, wherein: the inversion boosting module further comprises a plurality of diodes D8, the diodes D8 are in one-to-one correspondence with the ignition driving input ends, the cathodes of the diodes D8 are electrically connected with the ignition driving input ends, and the anodes of the diodes D8 are electrically connected with the anodes of the voltage stabilizing tubes ZD 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320652958.3U CN219554839U (en) | 2023-03-29 | 2023-03-29 | Multi-drive ignition circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320652958.3U CN219554839U (en) | 2023-03-29 | 2023-03-29 | Multi-drive ignition circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219554839U true CN219554839U (en) | 2023-08-18 |
Family
ID=87700695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320652958.3U Active CN219554839U (en) | 2023-03-29 | 2023-03-29 | Multi-drive ignition circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219554839U (en) |
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2023
- 2023-03-29 CN CN202320652958.3U patent/CN219554839U/en active Active
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