CN112228911A - Ignition circuit, ignition control method using ignition circuit, stove and double-stove-head stove - Google Patents
Ignition circuit, ignition control method using ignition circuit, stove and double-stove-head stove Download PDFInfo
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- CN112228911A CN112228911A CN202011060601.3A CN202011060601A CN112228911A CN 112228911 A CN112228911 A CN 112228911A CN 202011060601 A CN202011060601 A CN 202011060601A CN 112228911 A CN112228911 A CN 112228911A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 64
- 238000001514 detection method Methods 0.000 claims abstract description 52
- 230000010355 oscillation Effects 0.000 claims abstract description 32
- 239000003990 capacitor Substances 0.000 claims description 61
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 10
- 230000010360 secondary oscillation Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 238000010411 cooking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/10—Arrangement or mounting of ignition devices
- F24C3/103—Arrangement or mounting of ignition devices of electric ignition devices
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Abstract
The invention discloses an ignition circuit, an ignition control method, a stove and a double-stove-head stove, wherein the ignition circuit comprises: the ignition control circuit comprises a switch detection circuit, a micro control module, an oscillation boosting rectification voltage stabilizing circuit, an ignition control circuit, a valve control circuit and a power supply; the power supply is connected with the switch detection circuit and provides initial voltage; the output end of the switch detection circuit is connected with the input end of the oscillation boosting rectification voltage stabilizing circuit; the oscillation boosting rectification voltage stabilizing circuit is used for boosting and rectifying low voltage input by the switch detection circuit; and the micro control module is used for detecting the key state of the switch detection circuit, starting to perform time delay operation on the valve control circuit after the oscillation boosting, rectifying and voltage stabilizing circuit obtains the working voltage, transmitting the working voltage to the ignition control circuit, and boosting the working voltage to discharge and ignite. During time-delay operation, a special boosting chip circuit is not needed, and low-voltage boosting, rectifying and voltage stabilizing and accurate software time-delay control functions can be realized only by oscillating the boosting, rectifying and voltage stabilizing circuit.
Description
Technical Field
The invention relates to the technical field of igniters, in particular to an ignition circuit, an ignition control method using the ignition circuit, a stove and a double-stove-head stove.
Background
Currently, a typical igniter, generally using pulse ignition, uses a battery to power an electromagnetic pulser and a solenoid valve. The pulse igniter is a device for igniting combustible gas in a furnace by using an electric spark of high-voltage discharge. In addition, when a circuit is arranged, delayed ignition is generally considered, namely, gas and other fire are considered during design, so that backfire is not easily caused. In the thermocouple type pulse igniter powered by the dry battery, ignition delay and suction valve delay are realized, as shown in fig. 1, a resistance and capacitance combined charging and discharging circuit is adopted to realize a delay function, the circuit is complex, delay precision is greatly influenced by battery voltage, and user experience is influenced. If the single chip microcomputer is used for software delay, a special boosting chip is needed for voltage stabilization, and the cost is high.
Disclosure of Invention
The invention provides an ignition circuit, an ignition control method using the ignition circuit, a cooker and a double-burner cooker, which can overcome the defect of high voltage stabilization cost of the voltage boosting chip special for the defect.
In order to achieve the purpose, the invention adopts the technical scheme that:
an ignition circuit, comprising: the ignition control circuit comprises a switch detection circuit, a micro control module, an oscillation boosting rectification voltage stabilizing circuit, an ignition control circuit, a valve control circuit and a power supply;
the power supply is connected with the input end of the switch detection circuit and provides initial voltage for the whole system; (ii) a
The output end of the switch detection circuit is connected with the input end of the oscillation boosting, rectifying and voltage stabilizing circuit;
the oscillation voltage boosting and rectifying voltage stabilizing circuit is used for performing voltage boosting and rectifying treatment on the low voltage input by the switch detection circuit; and the output end of the micro-control module is connected with the input end of the micro-control module;
the micro control module is used for detecting the key state of the switch detection circuit and starting to perform time delay operation on the valve control circuit after the oscillation boosting, rectifying and voltage stabilizing circuit obtains working voltage; the micro control module is connected with the input end of the ignition control circuit;
the ignition control circuit boosts the voltage to discharge and ignite.
Preferably, the oscillating voltage boosting, rectifying and stabilizing circuit includes a voltage boosting circuit, a rectifying circuit and a voltage stabilizing circuit, which are sequentially arranged.
The boosting circuit comprises an oscillation boosting circuit consisting of a pulse transformer T1, a resistor R1, a capacitor C1 and a triode Q2, wherein one end of the series connection of the resistor R1 and the capacitor C1 is connected with the input end of the pulse transformer T1, and the other end of the series connection of the resistor R1 and the capacitor C1 is connected with the output end of the pulse transformer T1; the base electrode of the triode Q2 is connected between a resistor R1 and a capacitor C1, the collector electrode of the triode Q2 is connected with the input end of the pulse transformer T1, and the emitter electrode of the triode Q2 is connected with the output end of the pulse transformer T1.
Preferably, the rectifying circuit comprises a diode D2 and a polar electrolytic capacitor EC1, the diode D2 is connected to the voltage boosting circuit, and the polar electrolytic capacitor EC1 is connected to the voltage stabilizing circuit.
The voltage stabilizing circuit comprises a resistor R2, a voltage stabilizing diode D4 and a polar electrolytic capacitor EC2, wherein one end of the resistor R2 is connected with the diode D2, and the other end of the resistor R2 is connected with a voltage stabilizing diode D4 and a polar electrolytic capacitor EC 2; one end of the zener diode D4 and the polar electrical corner capacitor EC2 is grounded.
The ignition circuit further comprises a battery maintenance control circuit which provides continuous power for the whole circuit.
The battery maintenance control circuit comprises a triode Q5, a resistor R13, a triode Q4, a resistor R23 and a resistor R39, wherein the base of the triode Q5 is connected with the resistor R13, the collector of the triode Q5 is connected with a power supply, and the emitter of the triode Q5 is connected with the anode of the switch detection circuit; the resistor R13 is connected with the switch detection circuit; one end of the resistor R23 is connected with the anode of the switch detection circuit, and the other end is connected with the base electrode of the triode Q4; the collector of the triode Q4 is connected with the emitter of the triode Q5, and the emitter of the triode Q4 is grounded; one end of the resistor R39 is connected with the base electrode of the triode Q4, and the other end is grounded.
The ignition control circuit includes a conducting circuit capable of conducting and a secondary oscillation boosting discharge circuit.
The conducting circuit comprises a resistor R5, a triode Q3, a voltage stabilizing diode D1, a resistor R3, a capacitor C2 and a silicon controlled rectifier U1; one end of the resistor R5 is connected with the micro-control module, and the other end is connected with the base electrode of the triode Q3; the emitter of the triode Q3 is connected with the zener diode D1, and the collector is grounded; one pole of the voltage stabilizing diode D1 is connected with the oscillation voltage boosting and rectifying voltage stabilizing circuit, and is connected with the collector of the triode Q3 after being connected with the resistor R3 in series; one end of a capacitor C2 is connected with the collector of the triode Q3, and the other end of the capacitor C2 is grounded; the positive pole of the controllable silicon U1 is connected with the high-voltage pulse-packed transformer T2, and the negative pole is respectively connected with the collector of the triode Q3 and grounded.
The secondary oscillation boosting discharge circuit comprises a diode D5, a resistor R4, a capacitor C4, a diode D6 and a high-voltage pulse-wrapping transformer T2; one end of the diode D5 is connected with the oscillation voltage boosting and rectifying voltage stabilizing circuit, and the other end is connected with the input end of the high-voltage packet pulse transformer T2; the resistor R4 and the capacitor C4 are connected with the input end of the high-voltage pulse-packet transformer T2 at one end, and the other end is grounded; one end of the diode D6 is connected with the input end of the high-voltage packet pulse transformer T2, and the other end is connected with the controllable silicon U1; the high-voltage pulse transformer T2 induces voltage rise and discharges air.
The switch detection circuit comprises a switch key K, a resistor R9, a triode Q1, a resistor R8 and a capacitor C5, wherein one end of the switch key is connected with the positive electrode of a power supply, and the other end of the switch key is connected with the resistor R9; the base electrode of the triode Q1 is connected with the resistor R9, the emitter electrode is grounded, and the collector electrode is connected with the resistor R8; the other end of the resistor R8 is connected with the micro control module; one end of the capacitor C5 is connected with the micro control module, and the other end is grounded.
The valve control circuit comprises a resistor R7, a triode Q14, a resistor R6 and an electromagnetic valve which are sequentially connected, wherein the base electrode of the triode Q14 is connected with the resistor R7, the emitting electrode of the triode Q14 is grounded, and the collector electrode of the triode Q14 is connected with the resistor R6.
The switch detection circuit comprises two groups of detection circuits which are arranged in parallel, one end of each group of circuits is connected with the anode of the power supply, and the other end of each group of circuits is connected with the micro control module.
Each group of detection circuits comprises a switch, a resistor and a triode which are sequentially connected in series, wherein the resistor is connected with the base electrode of the triode, the collector electrode of the triode is connected with the micro control module, and the emitting electrode of the triode is grounded.
The micro-control module comprises a control chip SOP8 and a capacitor C3, wherein one pin of the control chip SOP8 is connected with the switch detection circuit, one pin of the control chip SOP8 is connected with the oscillation voltage boosting and rectifying voltage stabilizing circuit, one pin of the control chip SOP8 is connected with the valve control circuit, one end of the capacitor C3 is connected with the oscillation voltage boosting and rectifying voltage stabilizing circuit, and the other end of the capacitor C3 is grounded.
The valve control circuit comprises two groups of same valve control circuits which are arranged in parallel, wherein each group of valve control circuits comprises a first resistor, a triode, a second resistor and an electromagnetic valve which are sequentially connected in series, the first resistor is connected with the base electrode of the triode, the collector electrode of the triode is connected with the second resistor, and the emitter electrode of the triode is grounded.
An ignition control method applying the ignition circuit comprises the following steps:
the micro control module detects whether a switch K of the switch detection circuit is closed, and if the switch K of the switch detection circuit is closed, a low level is output to obtain the voltage of the battery;
transmitting the voltage to the oscillation voltage boosting, rectifying and stabilizing circuit, and performing voltage boosting, rectifying and stabilizing treatment on the voltage to obtain a processed voltage which becomes a starting voltage of the micro control module;
the micro control module starts to be electrified, outputs high level, carries out time delay operation on the valve control circuit and times t 1; after the timing is finished, outputting a low level, and igniting through the ignition control circuit;
and after the valve control circuit and the ignition control circuit stop working, the battery stops supplying power.
Preferably, the ignition control method described above further includes:
and when the timing t1 of the time delay is greater than the preset time ts1, the micro-control module outputs low level and finishes the time delay. The preset time ts1 is 3-5 seconds.
The ignition control method described above further includes:
when the ignition control circuit ignites, the micro control module performs timing t2, and when the timing t2 is greater than the preset time ts2, the ignition is stopped. The preset time ts2 is 3-5 seconds.
A cooking utensil, it includes above-mentioned ignition circuit.
A double-burner stove comprises the ignition circuit.
After the technical scheme is implemented, the micro control module is used for carrying out time delay operation, a special booster chip circuit is not needed, and only the oscillating boosting rectifying voltage stabilizing circuit is used, so that preliminary boosting rectifying voltage stabilization of low voltage can be realized, and a working power supply voltage is provided for the micro control module; the circuit is simple, the cost is low, and the precise software delay control function is realized through the micro control module.
Drawings
FIG. 1 is a diagram of a conventional ignition circuit;
FIG. 2 is a circuit diagram according to a first embodiment of the present invention;
FIG. 3 is a diagram of an oscillating boost rectifying regulator circuit according to a first embodiment of the present invention;
FIG. 4 is a circuit diagram of an ignition control circuit according to a first embodiment of the present invention;
fig. 5 is a circuit diagram of a second embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 2, the present invention discloses an ignition circuit comprising: the device comprises a switch detection circuit 1, a micro-control module 2, an oscillation boosting rectification voltage stabilizing circuit 3, an ignition control circuit 4, a valve control circuit 5, a battery maintenance control circuit 6 and a power supply;
the power supply is connected with the input end of the switch detection circuit 1 and provides initial voltage for the whole system;
in specific implementation, the switch detection circuit 1 comprises a switch key K, a resistor R9, a triode Q1, a resistor R8 and a capacitor C5, wherein one end of the switch key is connected with the positive electrode of a power supply, and the other end of the switch key is connected with the resistor R9; the base electrode of the triode Q1 is connected with the resistor R9, the emitter electrode is grounded, and the collector electrode is connected with the resistor R8; the other end of the resistor R8 is connected with the micro control module; one end of the capacitor C5 is connected with the micro control module, and the other end is grounded.
The switch detection circuit 1, which is closed (pressed) by the switch key K, represents that the entire system circuit starts to be activated.
The micro-control module 2 comprises a control chip SOP8 and a capacitor C3, wherein one pin of the control chip SOP8 is connected with a resistor R8 of the switch detection circuit 1, one pin of the control chip SOP8 is connected with the oscillation boosting rectifying voltage stabilizing circuit 3, one pin of the control chip SOP8 is connected with the valve control circuit 5, one end of the capacitor C3 is connected with the oscillation boosting rectifying voltage stabilizing circuit 3, and the other end of the capacitor C3 is grounded.
Through the micro control module 2, on one hand, the state of the switch detection circuit 1 can be detected, and in addition, the voltage of the oscillation boosting rectification voltage stabilizing circuit 3 can be received as a starting working voltage to carry out software delay design.
Referring to fig. 3, the oscillating boost rectification voltage stabilizing circuit 3 is used for performing boost rectification processing on the low voltage input by the switch detection circuit 1; and the output end thereof is connected with the input end of the micro control module 3.
In specific implementation, the oscillating voltage boosting, rectifying and stabilizing circuit 3 preferably includes a voltage boosting circuit 31, a rectifying circuit 32 and a voltage stabilizing circuit 33, which are sequentially arranged.
The booster circuit 31 comprises an oscillation booster circuit consisting of a pulse transformer T1, a resistor R1, a capacitor C1 and a triode Q2, wherein one end of the resistor R1 and the capacitor C1 are connected in series and then connected with the input end of the pulse transformer T1, and the other end of the resistor R1 and the capacitor C1 are connected with the output end of the pulse transformer T1; the base of the triode Q2 is connected between the resistor R1 and the capacitor C1, the collector of the triode Q2 is connected with the input end of the pulse transformer T1, and the emitter of the triode Q2 is connected with the output end of the pulse transformer T1.
The rectifying circuit 32 comprises a diode D2 and a polar electrolytic capacitor EC1, the diode D2 is connected with the booster circuit 31, and the polar electrolytic capacitor EC1 is connected with the voltage stabilizing circuit 33.
The voltage stabilizing circuit 33 comprises a resistor R2, a voltage stabilizing diode D4 and a polar electrolytic capacitor EC2, wherein one end of the resistor R2 is connected with a diode D2, and the other end of the resistor R2 is connected with a voltage stabilizing diode D4 and the polar electrolytic capacitor EC 2; one end of the zener diode D4 and the polar electrical corner capacitor EC2 is grounded.
The booster circuit 31, the rectifier circuit 32 and the voltage regulator circuit 33 constitute a one-stage booster circuit, which boosts the voltage from 1.5 to over one hundred volts, and performs not only one-stage boosting but also rectification and voltage stabilization processing on the voltage.
The ignition control circuit 4 boosts the voltage to discharge and ignite.
In specific implementation, referring to fig. 4, the ignition control circuit 4 includes a conduction circuit 41 and a secondary oscillation boost discharge circuit 42 that are capable of conducting.
The conduction circuit 41 comprises a resistor R5, a triode Q3, a voltage stabilizing diode D1, a resistor R3, a capacitor C2 and a silicon controlled rectifier U1; one end of the resistor R5 is connected with the micro-control module 3, and the other end is connected with the base electrode of the triode Q3; the emitter of the triode Q3 is connected with the zener diode D1, and the collector is grounded; one pole of a voltage stabilizing diode D1 is connected with the oscillating boosting rectifying voltage stabilizing circuit, and is connected with the collector of the triode Q3 after being connected with the resistor R3 in series; one end of the capacitor C2 is connected with the collector of the triode Q3, and the other end is grounded; the positive pole of the controllable silicon U1 is connected with the high-voltage pulse-wrapped transformer T2, and the negative pole is respectively connected with the collector of the triode Q3 and grounded.
The secondary oscillation boosting discharge circuit 42 comprises a diode D5, a resistor R4, a capacitor C4, a diode D6 and a high-voltage pulse-packet transformer T2; one end of the diode D5 is connected with the oscillation voltage boosting and rectifying voltage stabilizing circuit, and the other end is connected with the input end of the high-voltage packet pulse transformer T2; the resistor R4 and the capacitor C4 are connected with the input end of the high-voltage pulse-packet transformer T2 at one end, and the other end is grounded; one end of the diode D6 is connected with the input end of the high-voltage packet pulse transformer T2, and the other end is connected with the controllable silicon U1; the high-voltage pulse transformer T2 induces voltage rise and discharges air.
When the high-voltage pulse transformer T2 is used, the voltage of more than one hundred volts can be boosted to more than ten thousand volts, namely the voltage is boosted to be more than ten thousand volts, and the functions of secondary boosting and discharge ignition are completed.
Referring to fig. 2, the valve control circuit 5 includes a resistor R7, a transistor Q14, a resistor R6, and a solenoid valve 51, which are connected in sequence, wherein a base of the transistor Q14 is connected to the resistor R7, an emitter is grounded, and a collector is connected to the resistor R6.
The solenoid valve 51 is used to control the flow, direction, speed, and other parameters of the conditioning medium in the gas burner. When the valve is in the suction valve state, the valve is equivalent to the closing of gas.
Referring to fig. 2, a battery maintenance control circuit 6 is provided for supplying continuous power to the entire circuit.
In specific implementation, the battery maintenance control circuit 6 comprises a triode Q5, a resistor R13, a triode Q4, a resistor R23 and a resistor R39, wherein the base of the triode Q5 is connected with the resistor R13, the collector is connected with a power supply, and the emitter is connected with the positive electrode of the switch detection circuit; the resistor R13 is connected with the switch detection circuit; one end of the resistor R23 is connected with the anode of the switch detection circuit 1, and the other end is connected with the base electrode of the triode Q4; the collector of the triode Q4 is connected with the emitter of the triode Q5, and the emitter of the triode Q4 is grounded; one end of the resistor R39 is connected with the base of the triode Q4, and the other end is grounded.
After the micro-control module 2 obtains the start-up voltage VCC, the micro-control module 2 outputs a high level BAT-W to the resistor R23, so that the transistor Q4 is turned on, the transistor Q5 is continuously turned on (self-sufficient), and power is supplied to the entire control system, so that the micro-control module 2 can normally perform other logic operations.
According to the technical scheme of the first embodiment, the micro-control module 2 is used for carrying out time delay operation, primary boosting, rectifying and voltage stabilizing of low voltage can be realized only by oscillating the boosting, rectifying and voltage stabilizing circuit 3 without a special boosting chip circuit, a working power supply voltage is provided for the micro-control module 2, and a continuous and stable working voltage is provided for the whole system through the battery maintenance control circuit 6, so that the micro-control module 2 can normally carry out other logic operations; the invention has simple circuit and low cost, and realizes the precise software delay control function through the micro control module 2.
Example 2:
compared with the embodiment 1, the difference is that:
referring to fig. 5, first, the switch detection circuit 1 includes two sets of detection circuits connected in parallel, one end of each set of detection circuits is connected to the positive electrode of the power supply, and the other end is connected to the micro control module 2.
Specifically, the first group of detection circuits 11 includes a switch K2, a resistor R12 and a transistor Q4, which are sequentially connected in series, the resistor R12 is connected to the base of the transistor Q4, the collector of the transistor Q4 is connected to the micro control module 2, and the emitter of the transistor Q4 is grounded.
The first group of detection circuits 12 comprises a switch K1, a resistor R9 and a triode Q1 which are sequentially connected in series, wherein a resistor 9 is connected with the base electrode of the triode Q1, the collector electrode of the triode Q1 is connected with the micro-control module 2, and the emitter electrode of the triode Q1 is grounded.
Referring to fig. 5, next, the valve control circuit 5 of embodiment 2 includes two identical sets of valve control circuits arranged in parallel.
Specifically, the first group valve control circuit 52 includes a first resistor R7, a transistor Q14, a second resistor R6 and a solenoid valve 511, which are connected in series in sequence, wherein the first resistor R7 is connected with the base of the transistor Q14, the collector of the transistor Q14 is connected with the second resistor R6, and the emitter of the transistor Q14 is grounded.
The second group of valve control circuits 53 comprises a first resistor R11, a triode Q15, a second resistor R10 and a solenoid valve 512 which are sequentially connected in series, wherein the first resistor R11 is connected with the base electrode of the triode Q15, the collector electrode of the triode Q15 is connected with the second resistor R10, and the emitter electrode of the triode Q15 is grounded.
In use, the present embodiment is mainly applied to two-burner cookers, and is equivalent to performing ignition control at two time points, for example, one time point is right and left, then another time point is right and left, and then right, and so on.
Example 3:
the invention also discloses an ignition control method applying the ignition circuit, which comprises the following steps:
the micro-control module 2 detects whether a switch K2 of the switch detection circuit 1 is closed, if the switch K2 is closed, a positive electrode VBAT of the battery is connected to a resistor R9 of the switch detection circuit 1, so that the triode Q1 is conducted, the battery maintains a resistor 13 of the control circuit 6, a low level is output to the triode Q5, namely the triode Q5 is conducted, and therefore a battery voltage of 1.5V is obtained;
after obtaining a battery voltage of 1.5v, the voltage is transmitted to an oscillation boosting rectification voltage stabilizing circuit 3, the original voltage of 1.5v is boosted to 10-20 v through a multivibrator boosting circuit composed of a pulse transformer T1, a resistor R1 and a capacitor C1, then the voltage is rectified through a hexagonal tap of the pulse transformer T1, in the embodiment, a rectifying circuit is composed of a diode D2 and a polar electrolytic capacitor EC1, after rectification, voltage stabilization processing is performed through a voltage stabilizing circuit composed of elements such as a voltage stabilizing diode D4, and a processed power supply voltage VCC is used as a starting working voltage of the micro control module 2.
After the micro control module 2 obtains the starting working voltage, the micro control module starts to be electrified, high level is output, the BAT-W angle is provided to the resistor R23 of the battery maintenance control circuit 6, the triode Q4 is conducted, meanwhile, the triode Q5 is continuously conducted, so that electric energy is provided for the whole control system, and the micro control module can conveniently carry out other operations.
Meanwhile, the micro control module 2 performs time delay operation on the valve control circuit 5, starts timing t1, outputs a low level when the time delay t1 is greater than the preset time ts1, and outputs the low level after the time delay timing is finished; in the present embodiment, the preset time ts1 is 3-5 seconds.
When the micro control module 2 outputs a low level, the micro control module provides a voltage to a resistor R5 of the ignition control circuit 4, at the moment, a triode Q3 is in a cut-off process, a voltage stabilizing diode D1 element charges a capacitor C2 through a resistor R3, then the electric energy of the capacitor C2 reaches the trigger voltage of a controllable silicon U1, the controllable silicon U1 is switched on, the stored energy of the capacitor C4 is discharged, and the voltage is raised to more than ten thousand volts through induction of a high-voltage package pulse transformer T2, so that one discharge ignition is carried out.
When the ignition control circuit 4 performs ignition, the micro control module 2 performs a timing t2, and stops ignition when the timing t2 is greater than the preset time ts 2. In the embodiment, the preset time ts2 is 3-5 seconds.
When both the valve control circuit 5 and the ignition control circuit 4 stop operating, the battery stops supplying power.
On one hand, the control method can raise the original 1.5V voltage to ten thousand volts by two-stage boosting so as to realize discharge ignition; on the other hand, the self-sufficiency of the electric energy is realized for the whole system through the battery maintenance control circuit. The circuit is simple, energy-saving and environment-friendly.
Through this ignition circuit, can accurately realize the time delay design function of cooking utensils, practice thrift the cost and simply.
Through this ignition circuit, can realize the circulation ignition control to two furnace ends. And similarly, the time delay design function of the cooker can be accurately realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (23)
1. An ignition circuit, comprising: the ignition control circuit comprises a switch detection circuit, a micro control module, an oscillation boosting rectification voltage stabilizing circuit, an ignition control circuit, a valve control circuit and a power supply;
the power supply is connected with the input end of the switch detection circuit and provides initial voltage for the whole system;
the output end of the switch detection circuit is connected with the input end of the oscillation boosting, rectifying and voltage stabilizing circuit;
the oscillation voltage boosting and rectifying voltage stabilizing circuit is used for performing voltage boosting and rectifying treatment on the low voltage input by the switch detection circuit; and the output end of the micro-control module is connected with the input end of the micro-control module;
the micro control module is used for detecting the key state of the switch detection circuit and starting to perform time delay operation on the valve control circuit after the oscillation boosting, rectifying and voltage stabilizing circuit obtains working voltage; the micro control module is connected with the input end of the ignition control circuit;
the ignition control circuit boosts the voltage to discharge and ignite.
2. An ignition circuit as defined in claim 1, wherein: the oscillation voltage boosting and rectifying voltage stabilizing circuit comprises a voltage boosting circuit, a rectifying circuit and a voltage stabilizing circuit which are sequentially arranged.
3. An ignition circuit as defined in claim 2, wherein: the boosting circuit comprises an oscillation boosting circuit consisting of a pulse transformer T1, a resistor R1, a capacitor C1 and a triode Q2, wherein one end of the resistor R1 and the capacitor C1 are connected in series and then connected with the input end of the pulse transformer T1, and the other end of the resistor R1 and the capacitor C1 are connected with the output end of the pulse transformer T1; the base electrode of the triode Q2 is connected between a resistor R1 and a capacitor C1, the collector electrode of the triode Q2 is connected with the input end of the pulse transformer T1, and the emitter electrode of the triode Q2 is connected with the output end of the pulse transformer T1.
4. An ignition circuit as defined in claim 3, wherein: the rectifying circuit comprises a diode D2 and a polar electrolytic capacitor EC1, the diode D2 is connected with the booster circuit, and the polar electrolytic capacitor EC1 is connected with the voltage stabilizing circuit.
5. An ignition circuit as defined in claim 4, wherein: the voltage stabilizing circuit comprises a resistor R2, a voltage stabilizing diode D4 and a polar electrolytic capacitor EC2, wherein one end of the resistor R2 is connected with the diode D2, and the other end of the resistor R2 is connected with a voltage stabilizing diode D4 and the polar electrolytic capacitor EC 2; one end of the zener diode D4 and the polar electrical corner capacitor EC2 is grounded.
6. An ignition circuit as claimed in any one of claims 1 to 5, wherein: it further includes a battery maintenance control circuit that provides continuous power to the entire circuit.
7. An ignition circuit as defined in claim 6, wherein: the battery maintenance control circuit comprises a triode Q5, a resistor R13, a triode Q4, a resistor R23 and a resistor R39, wherein the base electrode of the triode Q5 is connected with the resistor R13, the collector electrode of the triode Q5 is connected with a power supply, and the emitter electrode of the triode Q5 is connected with the anode of the switch detection circuit; the resistor R13 is connected with the switch detection circuit; one end of the resistor R23 is connected with the anode of the switch detection circuit, and the other end is connected with the base electrode of the triode Q4; the collector of the triode Q4 is connected with the emitter of the triode Q5, and the emitter of the triode Q4 is grounded; one end of the resistor R39 is connected with the base electrode of the triode Q4, and the other end is grounded.
8. An ignition circuit as defined in claim 6, wherein: the ignition control circuit comprises a conducting circuit capable of conducting and a secondary oscillation boosting discharge circuit.
9. An ignition circuit as defined in claim 8, wherein: the conducting circuit comprises a resistor R5, a triode Q3, a voltage stabilizing diode D1, a resistor R3, a capacitor C2 and a silicon controlled rectifier U1; one end of the resistor R5 is connected with the micro-control module, and the other end is connected with the base electrode of the triode Q3; the emitter of the triode Q3 is connected with the zener diode D1, and the collector is grounded; one pole of the voltage stabilizing diode D1 is connected with the oscillation voltage boosting and rectifying voltage stabilizing circuit, and is connected with the collector of the triode Q3 after being connected with the resistor R3 in series; one end of a capacitor C2 is connected with the collector of the triode Q3, and the other end of the capacitor C2 is grounded; the positive pole of the controllable silicon U1 is connected with the high-voltage pulse-packed transformer T2, and the negative pole is respectively connected with the collector of the triode Q3 and grounded.
10. An ignition circuit as defined in claim 9, wherein: the secondary oscillation boosting discharge circuit comprises a diode D5, a resistor R4, a capacitor C4, a diode D6 and a high-voltage pulse transformer T2; one end of the diode D5 is connected with the oscillation voltage boosting and rectifying voltage stabilizing circuit, and the other end is connected with the input end of the high-voltage packet pulse transformer T2; the resistor R4 and the capacitor C4 are connected with the input end of the high-voltage pulse-packet transformer T2 at one end, and the other end is grounded; one end of the diode D6 is connected with the input end of the high-voltage packet pulse transformer T2, and the other end is connected with the controllable silicon U1; the high-voltage pulse transformer T2 induces voltage rise and discharges air.
11. An ignition circuit as defined in claim 6, wherein: the switch detection circuit comprises a switch key K, a resistor R9, a triode Q1, a resistor R8 and a capacitor C5, wherein one end of the switch key is connected with the positive electrode of a power supply, and the other end of the switch key is connected with the resistor R9; the base electrode of the triode Q1 is connected with the resistor R9, the emitter electrode is grounded, and the collector electrode is connected with the resistor R8; the other end of the resistor R8 is connected with the micro control module; one end of the capacitor C5 is connected with the micro control module, and the other end is grounded.
12. An ignition circuit as defined in claim 6, wherein: the valve control circuit comprises a resistor R7, a triode Q14, a resistor R6 and an electromagnetic valve which are sequentially connected, wherein the base electrode of the triode Q14 is connected with the resistor R7, the emitting electrode of the triode Q14 is grounded, and the collector electrode of the triode Q14 is connected with the resistor R6.
13. An ignition circuit as defined in claim 6, wherein: the switch detection circuit comprises two groups of detection circuits which are arranged in parallel, one end of each group of circuits is connected with the anode of the power supply, and the other end of each group of circuits is connected with the micro control module.
14. An ignition circuit as defined in claim 13, wherein: each group of detection circuits comprises a switch, a resistor and a triode which are sequentially connected in series, wherein the resistor is connected with the base electrode of the triode, the collector electrode of the triode is connected with the micro control module, and the emitting electrode of the triode is grounded.
15. An ignition circuit as defined in claim 6, wherein: the micro-control module comprises a control chip SOP8 and a capacitor C3, wherein one pin of the control chip SOP8 is connected with the switch detection circuit, one pin of the control chip SOP8 is connected with the oscillation voltage boosting and rectifying voltage stabilizing circuit, one pin of the control chip SOP8 is connected with the valve control circuit, one end of the capacitor C3 is connected with the oscillation voltage boosting and rectifying voltage stabilizing circuit, and the other end of the capacitor C3 is grounded.
16. An ignition circuit as defined in claim 6, wherein: the valve control circuit comprises two groups of same valve control circuits which are arranged in parallel, each group of valve control circuits comprises a first resistor, a triode, a second resistor and an electromagnetic valve which are sequentially connected in series, the first resistor is connected with the base electrode of the triode, the collector electrode of the triode is connected with the second resistor, and the emitter electrode of the triode is grounded.
17. An ignition control method using the ignition circuit according to any one of claims 1 to 16, characterized in that: it includes:
the micro control module detects whether a switch K of the switch detection circuit is closed, and if the switch K of the switch detection circuit is closed, a low level is output to obtain the voltage of the battery;
transmitting the voltage to the oscillation voltage boosting, rectifying and stabilizing circuit, and performing voltage boosting, rectifying and stabilizing treatment on the voltage to obtain a processed voltage which becomes a starting voltage of the micro control module;
the micro control module starts to be electrified, outputs high level, carries out time delay operation on the valve control circuit and times t 1; after the timing is finished, outputting a low level, and igniting through the ignition control circuit;
and after the valve control circuit and the ignition control circuit stop working, the battery stops supplying power.
18. The ignition control method according to claim 17, characterized in that: it still includes:
and when the timing t1 of the time delay is greater than the preset time ts1, the micro-control module outputs low level and finishes the time delay.
19. The ignition control method according to claim 18, characterized in that: the preset time ts1 is 3-5 seconds.
20. The ignition control method according to any one of claims 17 to 19, characterized in that: it still includes:
when the ignition control circuit ignites, the micro control module performs timing t2, and when the timing t2 is greater than the preset time ts2, the ignition is stopped.
21. The ignition control method according to claim 20, characterized in that: the preset time ts2 is 3-5 seconds.
22. Hob, characterized in that it comprises an ignition circuit according to any one of claims 1 to 12.
23. A double-burner stove is characterized in that: comprising an ignition circuit according to any one of claims 1-10 or an ignition circuit according to any one of claims 13-16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011060601.3A CN112228911A (en) | 2020-09-30 | 2020-09-30 | Ignition circuit, ignition control method using ignition circuit, stove and double-stove-head stove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011060601.3A CN112228911A (en) | 2020-09-30 | 2020-09-30 | Ignition circuit, ignition control method using ignition circuit, stove and double-stove-head stove |
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| CN112228911A true CN112228911A (en) | 2021-01-15 |
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| CN202011060601.3A Pending CN112228911A (en) | 2020-09-30 | 2020-09-30 | Ignition circuit, ignition control method using ignition circuit, stove and double-stove-head stove |
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