WO2017088583A1 - 脉冲点火控制电路、燃气灶及其工作控制方法和装置 - Google Patents

脉冲点火控制电路、燃气灶及其工作控制方法和装置 Download PDF

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Publication number
WO2017088583A1
WO2017088583A1 PCT/CN2016/100372 CN2016100372W WO2017088583A1 WO 2017088583 A1 WO2017088583 A1 WO 2017088583A1 CN 2016100372 W CN2016100372 W CN 2016100372W WO 2017088583 A1 WO2017088583 A1 WO 2017088583A1
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WO
WIPO (PCT)
Prior art keywords
gas stove
control
preset
burner
working
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Application number
PCT/CN2016/100372
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English (en)
French (fr)
Inventor
曾宪光
张炳卫
赖育文
Original Assignee
广东美的厨房电器制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201510843195.0A external-priority patent/CN105351975A/zh
Priority claimed from CN201521088954.9U external-priority patent/CN205447820U/zh
Priority claimed from CN201510982093.7A external-priority patent/CN105423339B/zh
Application filed by 广东美的厨房电器制造有限公司, 美的集团股份有限公司 filed Critical 广东美的厨房电器制造有限公司
Publication of WO2017088583A1 publication Critical patent/WO2017088583A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00—Igniters using electrically-produced sparks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T15/00—Circuits specially adapted for spark gaps, e.g. ignition circuits

Definitions

  • the invention relates to the technical field of household appliances, in particular to a pulse ignition control circuit, a gas stove and a working control method and device thereof.
  • each burner head is provided with a pulse ignition control circuit.
  • the conventional pulse ignition circuit is used to control the collector of the triode that generates the oscillating voltage, usually through the coil grounding, and the storage capacitor is set at the base of the triode to realize the delayed ignition operation.
  • the knob switch is released, since the storage capacitor needs to be discharged through the coil, the discharge has a delay.
  • the storage capacitor is not discharged completely, and the other knob is pressed to perform the ignition operation, Since the oscillation of the coil in the other pulse ignition control circuit affects the voltage of the entire ground terminal, the triode connected to the storage capacitor may be turned on again, so that the pulse ignition control circuit corresponding to the previously released knob switch is here. An oscillating voltage is generated to perform an ignition operation. Therefore, the existing gas stove has a crosstalk phenomenon on the left and right burners.
  • the gas stove that can be timed can preset the use time of the gas stove according to the need. When the set use time is reached, the gas stove will automatically go out. This function greatly facilitates the use of people in daily life. When boiling water or steaming vegetables, people do not need to wait around and do not need to worry about missing the fire time. Only need to set the running time in advance to reach the setting. The gas stove will automatically turn off the fire at a fixed time, so that people can have more time to do other things while using the gas stove.
  • the gas stove is powered by a battery or an external power supply, due to the use of the timing function, the gas stove needs more power in addition to the conventional ignition to drive the gas stove to work, so the gas stove will bring convenience and convenience. Consumes a large amount of electricity.
  • a primary object of the present invention is to provide a pulse ignition control circuit and a gas cooker for preventing crosstalk of a gas stove when it is fired on the left and right burners.
  • a first aspect of the present invention provides a pulse ignition control circuit including: a switch tube, a first capacitor, a switch button, a first resistor, a first coil, a second coil, and a control a module, wherein the switch tube includes a first end, a second end, and a control end for controlling a communication state of the first end and the second end, wherein a control end of the switch tube and the first capacitor a positive pole is connected, the anode of the first capacitor is connected to the anode of the preset power source through the switch button, and the first end of the switch tube is connected to the control module through the first coil, and the second end of the switch tube Connecting the ground terminal; the negative pole of the first capacitor is connected to the negative pole of the preset power source to form a ground end; one end of the first resistor is connected to the control end, and the other end is connected to the ground end; One end of the two coils is connected to the ground end, the other end is connected to the control module,
  • the control module comprises a first transistor, a second resistor, a second capacitor and a Zener diode, wherein the first transistor is a PNP transistor, and an emitter thereof is connected to an anode of the preset power source, a base is connected to the first coil through the second resistor, and a collector is connected to the second coil; one end of the second capacitor is connected to a base of the first transistor, and the other end is connected An emitter connection of the first transistor; wherein an end of the first coil connected to the first end of the switch tube and one end of the second coil connected to the collector of the first transistor are of the same name
  • the anode of the Zener diode is connected to the collector of the first transistor, and the cathode is connected to the emitter of the first transistor.
  • control module further comprises a diode, an anode of the diode is connected to a base of the first transistor, and a cathode is connected to an emitter of the first transistor.
  • the switch tube comprises a second triode, the second triode is an NPN transistor, the second end of the switch tube is emitted, and the collector is the first end of the switch tube.
  • the base is extremely the control end of the switch tube.
  • a third resistor is further disposed between the control end of the switch tube and the positive terminal of the first capacitor.
  • the pulse ignition control circuit further includes a third capacitor connected in parallel to both ends of the first resistor.
  • a second aspect of the present invention provides a gas stove, the gas stove includes at least two pulse ignition control circuits, and the pulse ignition control circuit includes: a switch tube, a first capacitor, and a switch button a first resistor, a first coil, a second coil, and a control module, wherein the switch tube includes a first end, a second end, and a control end for controlling a state in which the first end and the second end are in communication, wherein The control terminal is connected to the positive pole of the first capacitor, and the anode of the first capacitor is connected to the anode of the preset power source through the switch button, and the first end is connected to the control module through the first coil.
  • the second end is connected to the ground end; the negative pole of the first capacitor is connected to the negative pole of the preset power source to form a ground end; one end of the first resistor is connected to the control end, and the other end is connected to the ground end Connecting; one end of the second coil is connected to the ground end, the other end is connected to the control module, and the first coil and the second coil are coupled to each other; the control module is used in the switch First and second ends turned on, the second control voltage oscillation across the coil.
  • the pulse ignition control circuit includes a switch tube, a first capacitor, a switch button, a first resistor, a first coil, a second coil, and a control module, wherein the switch tube includes a first end, a second end, and a control end for controlling a communication state of the first end and the second end, wherein the control end is connected to a positive pole of the first capacitor, and a positive pole of the first capacitor passes the switch button and a preset power source
  • the positive pole is connected, the first end is connected to the control module through the first coil, and the second end is connected to the ground end; the negative pole of the first capacitor is connected to the negative pole of the preset power source to form a ground end
  • One end of the first resistor is connected to the control end, and the other end is connected to the ground end; one end of the second coil is connected to the ground end, and the other end is connected to the control module, and the first The coil and the second coil are coupled to each other; the control module is configured to control an oscillating
  • the invention also provides a working control method and device for a gas stove, aiming at reducing the power consumption of the gas stove.
  • a third aspect of the present invention provides a gas stove working control method comprising the following steps:
  • the preset thermocouple detection circuit detects the voltage value across the thermocouple
  • the preset standby working circuit is controlled to enter a working state.
  • the method further includes:
  • the corresponding solenoid valve of the burner is controlled to be closed, and the preset standby working circuit and the thermocouple detecting circuit are controlled to enter a standby state.
  • the method further includes:
  • the first alarm signal is output.
  • controlling the corresponding solenoid valve of the burner to be closed, and controlling the preset standby working circuit to enter the standby state further comprises:
  • the voltage value across the thermocouple of the burner is collected again at the first preset time interval;
  • the corresponding solenoid valve of the burner is controlled to be closed, and a second alarm signal is output.
  • thermocouple when the standby working circuit detects that the display panel has a touch signal, controlling the preset thermocouple Before the detection circuit detects the voltage value across the thermocouple, it also includes:
  • the ignition control circuit of the gas stove When it is detected that the preset knob of the gas stove is triggered, the ignition control circuit of the gas stove enters an operating state, and the solenoid valve corresponding to the burner is controlled to be closed;
  • control pulse igniter continues to discharge for a second preset period of time.
  • a fourth aspect of the present invention provides a work control apparatus for a gas stove, and the work control apparatus of the gas stove includes:
  • thermocouple detection circuit configured to detect a voltage value across the thermocouple
  • a first determining module configured to determine, according to the magnitude of the voltage value, whether a burner corresponding to the gas stove currently has a flame
  • the second control module is configured to control the preset standby working circuit to enter a working state when it is determined that the burner has a flame.
  • the working control device of the gas stove further comprises:
  • a third control module configured to control a pulse controller start timing in the preset standby working circuit
  • a fourth control module configured to control the corresponding solenoid valve of the burner to be closed when the timing time arrives, and control the preset standby working circuit and the thermocouple detection circuit to enter a standby state.
  • the working control device of the gas stove further comprises:
  • a detecting module configured to detect a battery power of the gas stove
  • a determining module configured to determine whether the detected power value is less than a preset value
  • the first output module is configured to output a first alarm signal when the power value is less than a preset value.
  • the working control device of the gas stove further comprises:
  • a voltage collecting module configured to collect the voltage values of the thermocouples of the burner again at intervals of a first preset time after the timing time is reached;
  • a second determining module configured to determine whether the furnace still has a flame according to the magnitude of the voltage value detected again;
  • the fifth control module is configured to control the corresponding solenoid valve of the burner to be closed when the burner still has a flame, and output a second alarm signal.
  • the working control device of the gas stove further comprises an ignition control device, the ignition control device comprising:
  • a sixth control module configured to: when it is detected that the preset knob of the gas stove is triggered, the ignition control circuit of the gas stove enters an operating state, and controls a solenoid valve corresponding to the burner to be closed;
  • the seventh control module is configured to continuously discharge the pulse igniter during the first preset time period after the corresponding solenoid valve of the burner is sucked.
  • the preset thermocouple detection circuit controls the voltage value at both ends of the thermocouple; and determines the burner corresponding to the gas stove according to the magnitude of the voltage value. Whether there is a flame currently; when it is determined that the burner has a flame, the preset standby working circuit is controlled to enter a working state. Thereby achieving a reduction in the power consumption of the gas stove.
  • FIG. 1 is a schematic diagram showing the circuit structure of an embodiment of a pulse ignition control circuit of the present invention.
  • FIG. 2 is a schematic flow chart of a first embodiment of a working control method for a gas stove according to the present invention
  • FIG. 3 is a view showing an example of an electrical principle of a gas stove in an embodiment of a working control method for a gas cooker according to the present invention
  • FIG. 4 is a schematic flow chart of a second embodiment of a working control method for a gas stove according to the present invention.
  • FIG. 5 is a schematic flow chart of a fourth embodiment of a working control method for a gas stove according to the present invention.
  • FIG. 6 is a schematic flow chart of a fifth embodiment of a working control method for a gas stove according to the present invention.
  • FIG. 7 is a schematic structural diagram of a functional module of a first embodiment of a working control device for a gas stove according to the present invention.
  • FIG. 8 is a schematic structural diagram of a functional module of a second embodiment of a working control device for a gas stove according to the present invention.
  • FIG. 9 is a schematic structural diagram of a functional module of a fourth embodiment of a working control device for a gas stove according to the present invention.
  • FIG. 10 is a schematic structural diagram of a functional module of a fifth embodiment of a working control apparatus for a gas cooker according to the present invention.
  • first, second, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.
  • the pulse ignition control circuit includes a switch tube Q1, a first capacitor C1, a switch button S, and a first resistor R1.
  • the switch tube Q1 includes a first end, a second end, and a control end for controlling the communication state of the first end and the second end, wherein
  • the control terminal is connected to the anode of the first capacitor C1, and the anode of the first capacitor C1 is connected to the anode of the preset power source VCC through the switch button S, and the first end passes through the first coil L1 and the
  • the control module Ctr10 is connected, the second end is connected to the ground end; the negative pole of the first capacitor C1 is connected to the negative pole of the preset power source VCC to form a ground end; one end of the first resistor R1 and the control end Connecting, the other end is connected to the ground end; one end of the second coil L2 is connected to the ground end, the other end is connected to the control module Ctr10, and the first coil L1 and the second coil L2 are coupled
  • the control module Ctr10 is used When the first end and
  • the pulse ignition control circuit provided in this embodiment is mainly applied to a gas stove for generating an oscillating voltage.
  • the switch button S is a knob switch in the gas stove.
  • the gas stove includes two burners, and each burner is provided with a pulse ignition control circuit to control the ignition operation.
  • the preset power supply may be a battery built in the gas stove or a working power supply provided by the external adapter, which is not further limited herein.
  • the switch button S In operation, when the user presses the switch button S, the switch button S is in an on state.
  • the preset power supply VCC charges both ends of the first capacitor C1, and when the voltage of the first capacitor C1 rises to a high level that enables the switching transistor to be turned on, the switching transistor Q1 is turned on.
  • the first coil L1 and the second coil L2 are caused by the control module Ctr10 such that an oscillating voltage is generated across the second coil L2.
  • the oscillating voltage is substantially in the form of a sine wave and is a direct current.
  • the pulse ignition control circuit further includes a high-voltage pulse ignition circuit H20, which couples and boosts the oscillating voltage across the second coil L2, and finally outputs the voltage to the high voltage package HV to provide the high voltage package HV.
  • the pulse ignition voltage is used to achieve the ignition function.
  • the circuit structure of the high-voltage pulse ignition circuit H20 can be set according to actual needs, and will not be further described herein.
  • the pulse ignition control circuit includes a switch tube Q1, a first capacitor C1, a switch button S, a first resistor R1, a first coil L1, a second coil L2, and a control module Ctr10, wherein the switch tube Q1 includes a first end, a second end, and a control end for controlling the communication state of the first end and the second end, wherein the control end is connected to the positive pole of the first capacitor C1, and the first capacitor C1
  • the positive pole is connected to the positive pole of the preset power source VCC through the switch button S, the first end is connected to the control module Ctr10 through the first coil L1, and the second end is connected to the ground end;
  • the first capacitor C1 a negative pole connected to the negative pole of the preset power source VCC to form a ground end; one end of the first resistor R1 is connected to the control end, and the other end is connected to the ground end; one end of the second coil L2 is The ground end is connected, the other end is connected to the control module C
  • control module Ctr10 includes a first transistor Q2, a second resistor R2, a second capacitor C2, and a Zener diode Z1.
  • the first transistor Q2 is a PNP transistor, the emitter thereof is connected to the anode of the preset power source VCC, the base is connected to the first coil L1 through the second resistor R2, and the collector and the first Two coils L2 are connected; one end of the second capacitor C2 is connected to the base of the first transistor Q2, and the other end is connected to the emitter of the first transistor Q2; wherein the first coil L1 One end connected to the first end of the switch tube Q1 and one end connected to the collector of the second coil L2 and the first transistor Q2 are the same end; the anode of the Zener diode Z1 and the first The collector of the transistor Q2 is connected, and the cathode is connected to the emitter of the first transistor Q2.
  • the second capacitor C2 is discharged through the second resistor R2 and the first coil L1.
  • the base voltage of the first transistor Q2 is lowered.
  • the first transistor Q2 is turned on.
  • the preset power source VCC will charge the second coil L2 through the first transistor Q2.
  • an induced electromotive force will be generated on the first coil L1, thereby making the first The voltage of the base of the transistor Q2 rises.
  • the first transistor Q2 is turned off, and the second coil L2 is discharged through the Zener diode Z1.
  • the voltage at the base of the first transistor Q2 will rise again, again causing the first transistor Q2 to turn off. Therefore, during the turn-on of the switching transistor Q1, the first transistor Q2 is continuously turned on and off, and the second coil L2 is continuously charged and discharged, thereby forming an oscillating voltage.
  • control module Ctr10 further includes a diode D1, an anode of the diode D1 is connected to a base of the first transistor Q2, and a cathode and the first three poles The emitter of tube Q2 is connected.
  • the diode D1 is a rectifier diode for realizing a freewheeling discharge at the moment when the transistor is turned off.
  • the voltage between the emitter and the base of the first transistor Q2 is prevented from being excessively large, and the first transistor Q2 is damaged.
  • the structure of the above-mentioned switch tube Q1 can be set according to actual needs.
  • the switch tube Q1 includes a second transistor, and the second three poles.
  • the tube is an NPN transistor, which emits the second end of the switch tube, and the collector is the first end of the switch tube, and the base is the control end of the switch tube.
  • the above-mentioned switch tube Q1 can also adopt other structures, for example, a field effect transistor or the like can be used.
  • a third resistor R3 is further disposed between the control terminal and the anode of the first capacitor C1.
  • the third resistor R3 is a current limiting resistor, and may be connected between the control terminal and the first capacitor C1, or may be connected between the emitter of the second transistor and the ground.
  • the pulse ignition control circuit further includes a third capacitor C3, and the third capacitor C3 is connected in parallel to both ends of the first resistor R1.
  • the third capacitor C3 is a filter capacitor for stabilizing the voltage of the control terminal of the switch Q1.
  • the present invention also provides a gas stove, which includes at least two pulse ignition control circuits.
  • the structure of the pulse ignition control circuit can be referred to the above embodiment, and details are not described herein again.
  • the gas stove of the embodiment adopts the technical scheme of the above-described pulse ignition control circuit, the gas stove has all the beneficial effects of the above-described pulse ignition control circuit.
  • the invention provides a working control method for a gas stove.
  • the work of the gas stove Control methods include:
  • Step S10 when the standby working circuit detects that the display panel has a touch signal, controlling the preset thermocouple detection circuit to detect the voltage value across the thermocouple;
  • Step S20 determining, according to the magnitude of the voltage value, whether there is a flame currently present in the burner corresponding to the gas stove; if yes, executing step S30, otherwise ending;
  • step S30 the preset standby working circuit is controlled to enter an operating state.
  • FIG. 3 an example of the electrical principle of the gas stove is shown in FIG. 3.
  • the MCU main control board 21 of the gas stove controls the operation of the gas stove, and the pulse igniter 22 is used for the ignition of the left and right burners, and the left burner 23 of the gas stove.
  • the right burner 24 has a thermocouple and an ignition needle, such as a right thermocouple 25 and a right ignition needle 26, and an output display device of the display panel 27 gas stove for displaying the battery power indication, the timing indicator, and the timing time.
  • the preset thermocouple is a thermocouple for a gas stove burner. It is a temperature sensor that directly measures temperature and converts the temperature signal into a thermoelectromotive force signal.
  • the voltage value across the thermocouple is detected by the thermocouple detection circuit.
  • the program controls the standby working circuit to enter the working state.
  • the standby working circuit does not need to start working, and the thermocouple detection circuit maintains the standby state.
  • the obtained voltage value is compared with the preset voltage value.
  • the value is greater than the preset voltage value, the presence of the flame may be determined.
  • the size of the specific preset voltage value may be set by a technician according to requirements.
  • the above standby working circuit includes a display panel controller and a pulse controller. This part of the circuit is activated when the voltage across the thermocouple is detected to determine the presence of a flame in the burner. When the gas stove burner has no flame, the standby working circuit and the thermocouple detection circuit are kept in standby state.
  • the preset thermocouple detection circuit controls the voltage value at both ends of the thermocouple; and determines the burner corresponding to the gas stove according to the magnitude of the voltage value. Whether there is a flame currently; when it is determined that the burner has a flame, the preset standby working circuit is controlled to enter a working state. Thereby achieving a reduction in the power consumption of the gas stove.
  • the step S30 includes:
  • Step S40 controlling a pulse controller starting timing in the standby working circuit
  • Step S50 when the timing time arrives, the solenoid valve corresponding to the burner is controlled to be closed, and the standby working circuit and the thermocouple detection circuit are controlled to enter a standby state.
  • the pulse controller is used to perform the ignition timing, and when the ignition timing time is reached, the corresponding pulse control signal is output to perform the fire control.
  • the closing of the solenoid valve corresponding to the control burner refers to controlling the closing of the solenoid valve of the burner with a fire. For example, the left burner has a fire at this time, and at this time, the solenoid valve of the left burner is closed. At the same time, since the fire has been turned off, there is no flame on the burner, and the standby circuit will be controlled to enter the standby state again.
  • the timing of the pulse controller control circuit in the standby working circuit is controlled, and the timing circuit can be controlled to enter the working state when the necessary starting timing is performed.
  • the method further includes:
  • Step S60 detecting a battery power of the gas stove
  • Step S70 determining whether the detected electric quantity value is less than a preset value; if yes, executing step S90, otherwise ending;
  • Step S80 outputting a first alarm signal.
  • the battery power of the gas stove is detected.
  • the battery power of the gas stove is checked after the standby working circuit detects that the display panel has a touch signal.
  • the preset value can be set according to need to compare the battery power value, for example, set to 2.1 volts, when it is detected that the battery power is less than 2.1 volts, indicating that the battery power is low, and the first alarm signal is output.
  • the first alarm signal is represented in a coded form of a predefined communication transmission, and the specific communication protocol coding rules can be set as needed.
  • the first alarm signal is transmitted to the output device of the gas stove, and the output device performs a corresponding operation to prompt the user that the battery is in a low battery state.
  • the output device can be set as needed, and can be an output device or several output devices, such as an indicator light or a whistle, and the corresponding operation can be a blinking light or a short beep.
  • the alarm signal will not be output.
  • the battery power reminding method is not limited to the above enumerated manners, and the preset value may be set to a value or a plurality of values, and may prompt the user to have a battery state in various states.
  • the method further includes:
  • Step S90 after the timing time arrives, the voltage value across the thermocouple of the burner is collected again at intervals of the first preset time;
  • Step S100 determining whether the furnace still has a flame according to the magnitude of the voltage value detected again; if yes, executing step S110, otherwise ending;
  • Step S110 controlling the corresponding solenoid valve of the burner to be closed, and outputting a second alarm signal.
  • the voltage value at both ends of the burner thermocouple that was extinguished before is collected again.
  • the first left burner has a fire, and the flame is extinguished after the timing is completed.
  • the preset time can be set as needed. For example, after setting it to 30-45 s, check whether the corresponding burner has a flame, in order to confirm whether the flame has been completely extinguished.
  • the corresponding solenoid valve of the burner is closed again, and the corresponding gas path of the solenoid valve is cut off, and the flame is extinguished.
  • the second alarm signal is also a code of a predefined communication transmission, and is also transmitted to an output device of the gas stove for prompting that the gas stove burner is not properly closed when the timing time arrives. For example, when there is a flame detected again, try to turn off the fire again, output and transmit a signal that does not turn off the fire to the output device, and the output device buzzer will sound three times. When the user hears a short beep After that, you can check the flame condition of the gas stove. When the fire has not been turned off, the user can manually turn off the fire. When the timing time arrives, the flame is not detected again, indicating that the fire has been properly closed. At this time, no operation is performed to change the state of the solenoid valve corresponding to the burner, and the second alarm signal is not output.
  • the flame condition is detected again after the timing is completed, and it is ensured that the gas stove corresponding to the burner is properly closed.
  • different abnormal conditions can also be defined as different alarm signals as needed, and the output device is controlled to perform corresponding operations according to different alarm signals.
  • the method further includes:
  • Step S130 when it is detected that the preset knob of the gas stove is triggered, the ignition control circuit enters an operating state, and the solenoid valve corresponding to the burner is controlled to be closed;
  • Step S140 after the corresponding solenoid valve of the burner is sucked, the control pulse igniter continues to discharge for a second preset period of time.
  • the ignition control circuit in this embodiment is used to ignite the burner of the gas stove.
  • the preset knob is a knob for ignition on the gas stove.
  • the ignition control circuit is a circuit for controlling ignition.
  • the suction of the solenoid valve is controlled by controlling the discharge of the pulse igniter.
  • the second preset time can be set according to actual needs. For example, it can be set to 2-5s. If the knob is still pressed within 2-5s, the pulse igniter will continue to discharge for 2-5s, so the solenoid valve can be guaranteed. Continue to suck for a period of time and the burner is stable.
  • This embodiment achieves the function of controlling the delayed ignition of the gas stove by controlling the pulse igniter to be engaged for a duration of time.
  • the present invention also provides a working control device for a gas stove.
  • a working control device for a gas stove includes:
  • thermocouple detection circuit configured to detect a voltage value across the thermocouple
  • the first determining module 20 is configured to determine, according to the magnitude of the voltage value, whether a burner corresponding to the gas stove currently has a flame;
  • a second control module 30 configured to control a preset standby operation when it is determined that the burner has a flame
  • FIG. 3 an example of the electrical principle of the gas stove is shown in FIG. 3.
  • the MCU main control board 21 of the gas stove controls the operation of the gas stove, and the pulse igniter 22 is used for the ignition of the left and right burners, and the left burner 23 of the gas stove.
  • the right burner 24 has a thermocouple and an ignition needle, such as a right thermocouple 25 and a right ignition needle 26, and an output display device of the display panel 27 gas stove for displaying the battery power indication, the timing indicator, and the timing time.
  • the preset thermocouple is a thermocouple for a gas stove burner. It is a temperature sensor that directly measures temperature and converts the temperature signal into a thermoelectromotive force signal.
  • the voltage value across the thermocouple is detected by the thermocouple detection circuit.
  • Program control standby power when there is a flame in the burner
  • the standby working circuit does not need to start working, and the thermocouple detection circuit remains in the standby state.
  • the obtained voltage value is compared with the preset voltage value. When the value is greater than the preset voltage value, the presence of the flame may be determined.
  • the size of the specific preset voltage value may be set by a technician according to requirements.
  • the above standby working circuit includes a display panel controller and a pulse controller. This part of the circuit is activated when the voltage across the thermocouple is detected to determine the presence of a flame in the burner. When the gas stove burner has no flame, the standby working circuit and the thermocouple detection circuit are kept in standby state.
  • the preset thermocouple detection circuit controls the voltage value at both ends of the thermocouple; and determines the burner corresponding to the gas stove according to the magnitude of the voltage value. Whether there is a flame currently; when it is determined that the burner has a flame, the preset standby working circuit is controlled to enter a working state. Thereby achieving a reduction in the power consumption of the gas stove.
  • the working control device for the gas stove further includes:
  • a third control module 40 configured to control a pulse controller start timing in the standby working circuit
  • the fourth control module 50 is configured to control the solenoid valve corresponding to the burner to be closed when the timing time arrives, and control the standby working circuit and the thermocouple detection circuit to enter a standby state.
  • the pulse controller is used to perform the ignition timing, and when the ignition timing time is reached, the corresponding pulse control signal is output to perform the fire control.
  • the closing of the solenoid valve corresponding to the control burner refers to controlling the closing of the solenoid valve of the burner with a fire. For example, the left burner has a fire at this time, and at this time, the solenoid valve of the left burner is closed. At the same time, since the fire has been turned off, there is no flame on the burner, and the standby circuit will be controlled to enter the standby state again.
  • the timing of the pulse controller control circuit in the standby working circuit is controlled, and the timing circuit can be controlled to enter the working state when the necessary starting timing is performed.
  • the working control device for the gas stove further includes:
  • a detecting module configured to detect a battery power of the gas stove
  • a determining module configured to determine whether the detected power value is less than a preset value
  • the first output module is configured to output a first alarm signal when the power value is less than a preset value.
  • the battery power of the gas stove is detected.
  • the battery power of the gas stove is checked after the standby working circuit detects that the display panel has a touch signal.
  • the preset value can be set according to need to compare the battery power value, for example, set to 2.1 volts, when it is detected that the battery power is less than 2.1 volts, indicating that the battery power is low, and the first alarm signal is output.
  • the first alarm signal is represented in a coded form of a predefined communication transmission, and the specific communication protocol coding rules can be set as needed.
  • the first alarm signal is transmitted to the output device of the gas stove, and the output device performs a corresponding operation to prompt the user that the battery is in a low battery state.
  • the output device can be set as needed, It is an output device or several output devices, such as an indicator light or a whistle.
  • the corresponding operation may be a blinking light or a short beep.
  • the battery power reminding method is not limited to the above enumerated manners, and the preset value may be set to a value or a plurality of values, and may prompt the user to have a battery state in various states.
  • the working control device for the gas stove further includes:
  • the voltage collecting module 60 is configured to collect the voltage values of the thermocouples of the burner again at intervals of the first preset time after the timing time is reached;
  • a second determining module 70 configured to determine, according to the magnitude of the voltage value detected again, whether the burner still has a flame
  • the fifth control module 80 is configured to control the corresponding solenoid valve of the burner to be closed when the burner still has a flame, and output a second alarm signal.
  • the voltage value at both ends of the burner thermocouple that was extinguished before is collected again.
  • the first left burner has a fire, and the flame is extinguished after the timing is completed.
  • the preset time can be set as needed. For example, after setting it to 30-45 s, check whether the corresponding burner has a flame, in order to confirm whether the flame has been completely extinguished.
  • the corresponding solenoid valve of the burner is closed again, and the corresponding gas path of the solenoid valve is cut off, and the flame is extinguished.
  • the second alarm signal is also a code of a predefined communication transmission, and is also transmitted to an output device of the gas stove for prompting that the gas stove burner is not properly closed when the timing time arrives. For example, when there is a flame detected again, try to turn off the fire again, output and transmit a signal that does not turn off the fire to the output device, and the output device buzzer will sound three times. When the user hears the short beep, he can check the flame condition of the gas stove. When the fire has not been turned off, the user can manually turn off the fire. When the timing time arrives, the flame is not detected again, indicating that the fire has been properly closed. At this time, no operation is performed to change the state of the solenoid valve corresponding to the burner, and the second alarm signal is not output.
  • the flame condition is detected again after the timing is completed, and it is ensured that the gas stove corresponding to the burner is properly closed.
  • different abnormal conditions can also be defined as different alarm signals as needed, and the output device is controlled to perform corresponding operations according to different alarm signals.
  • the working control device for the gas stove further includes:
  • a sixth control module 90 configured to: when it is detected that the preset knob of the gas stove is triggered, the ignition control circuit enters a working state, and controls a solenoid valve corresponding to the burner to be sucked;
  • the seventh control module 100 is configured to control the pulse igniter to continuously discharge during the second preset time period after the corresponding solenoid valve of the burner is sucked.
  • the ignition control circuit in this embodiment is used to ignite the burner of the gas stove.
  • the preset knob is a knob for ignition on the gas stove.
  • the ignition control circuit is a circuit for controlling ignition.
  • the suction of the solenoid valve is controlled by controlling the discharge of the pulse igniter.
  • the second preset time can be set according to actual needs. For example, it can be set to 2-5s. If the knob is still pressed within 2-5s, the pulse igniter will continue to discharge for 2-5s, so the solenoid valve can be guaranteed. Continue to suck for a period of time and the burner is stable.
  • This embodiment achieves the function of controlling the delayed ignition of the gas stove by controlling the pulse igniter to be engaged for a duration of time.

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Abstract

一种脉冲点火控制电路、具有至少两个该脉冲点火控制电路的燃气灶及其工作控制方法和工作控制装置。其中脉冲点火控制电路包括开关管（Q1）、第一电容（C1）、开关按键（S）、第一电阻（R1）、第一线圈（L1）、第二线圈（L2）和控制模块（10），开关管（Q1）包括第一端、第二端和用于控制第一端和第二端连通状态的控制端，控制端与第一电容（C1）的正极连接，第一电容（C1）的正极通过开关按键（S）与预置电源（VCC）的正极连接，第一端通过第一线圈（L1）与控制模块（Ctr10）连接，第二端与接地端连接；第一电容（C1）的负极与预置电源（VCC）的负极连接，形成接地端；第一电阻（R1）的一端与控制端连接，另一端与接地端连接；第二线圈（L2）的一端与接地端连接，另一端与控制模块（Ctr 10）连接，且第一线圈（L1）和第二线圈（L2）耦合连接。该燃气灶及其工作控制方法和工作控制装置降低了耗电量。

Description

脉冲点火控制电路、燃气灶及其工作控制方法和装置
相关申请的交叉引用
本申请要求中国专利申请号201510982093.7、申请日为2015年12月22日；中国专利申请号201521088954.9、申请日为2015年12月22日以及中国专利申请号201510843195.0、申请日为2015年11月27日的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本发明涉及家用电器技术领域，尤其涉及一种脉冲点火控制电路、燃气灶及其工作控制方法和装置。
背景技术
众所周知，在现有的燃气灶中通常设有左右两个炉头，每个炉头对应设有一个脉冲点火控制电路。传统的脉冲点火电路用于控制产生振荡电压的三极管的集电极通常通过线圈接地，在三极管的基极设置储能电容实现延时点火操作。但是在旋钮开关松开后，由于储能电容需要经过该线圈放电，从而使得放电存在延时，若在储能电容未放电完全的情况下，另外一侧的旋钮开关按下进行点火操作时，由于另一脉冲点火控制电路中的线圈进行振荡对整个接地端的电压产生影响，将可能导致与储能电容相连的三极管将再次导通，使得之前松开的旋钮开关对应的脉冲点火控制电路在此产生振荡电压，进行点火操作。因此现有的燃气灶左右炉头打火存在串扰现象。
随着技术的发展，目前市场上推出了很多具有定时功能的燃气灶。可定时的燃气灶可以根据需要预先设定燃气灶的使用时间，当达到设置的使用时间后，燃气灶会自动熄灭。这项功能极大的方便了人们日常生活中的使用，当在烧水或者蒸菜时，人们不需要一直守候在旁边也不需要担心错过关火时间，只需要提前设置好运行时间，达到设定时间燃气灶会自动关火，使人们可以有更多的时间在使用燃气灶的同时做其他事情。
然而无论燃气灶是使用电池供电还是外接电源供电，由于使用了定时功能，燃气灶除了常规的点火以外也需要更多的电量来带动燃气灶工作，因此燃气灶在带来使用便捷的同时也会消耗较大的电量。
申请内容
本发明的主要目的在于提供一种脉冲点火控制电路及燃气灶，旨在防止燃气灶在左右炉头打火时产生串扰。
为了实现上述目的，本发明的第一方面提供一种脉冲点火控制电路，所述脉冲点火控制电路包括：开关管、第一电容、开关按键、第一电阻、第一线圈、第二线圈和控制模块，其中所述开关管包括第一端、第二端和用于控制所述第一端和第二端连通状态的控制端，其中，所述开关管的控制端与所述第一电容的正极连接，所述第一电容的正极通过所述开关按键与预置电源的正极连接，开关管的第一端通过所述第一线圈与所述控制模块连接，开关管的第二端与所述接地端连接；所述第一电容的负极与所述预置电源的负极连接，形成接地端；所述第一电阻的一端与控制端连接，另一端与所述接地端连接；所述第二线圈的一端与所述接地端连接，另一端与所述控制模块连接，且所述第一线圈和第二线圈耦合连接；所述控制模块用于在所述开关管的第一端和第二端导通时，控制所述第二线圈两端产生振荡电压。
优选地，所述控制模块包括第一三极管、第二电阻、第二电容和稳压二极管，所述第一三极管为PNP三极管，其发射极与所述预置电源的正极连接，基极通过所述第二电阻与所述第一线圈连接，集电极与所述第二线圈连接；所述第二电容的一端与所述第一三极管的基极连接，另一端与所述第一三极管的发射极连接；其中所述第一线圈与所述开关管第一端连接的一端和所述第二线圈与所述第一三极管集电极连接的一端为同名端；所述稳压二极管的阳极与所述第一三极管的集电极连接，阴极与所述第一三极管的发射极连接。
优选地，所述控制模块还包括二极管，所述二极管的阳极与所述第一三极管的基极连接，阴极与所述第一三极管的发射极连接。
优选地，所述开关管包括为第二三极管，所述第二三极管为NPN三极管，其发射极为所述开关管的第二端，集电极为所述开关管的第一端，基极为所述开关管的控制端。
优选地，所述开关管的控制端与所述第一电容的正极之间还设有第三电阻。
优选地，所述脉冲点火控制电路还包括第三电容，所述第三电容并联于所述第一电阻的两端。
此外，为实现上述目的，本发明的第二方面还提供一种燃气灶，所述燃气灶包括至少两个脉冲点火控制电路，所述脉冲点火控制电路包括：开关管、第一电容、开关按键、第一电阻、第一线圈、第二线圈和控制模块，其中所述开关管包括第一端、第二端和用于控制所述第一端和第二端连通状态的控制端，其中，所述控制端与所述第一电容的正极连接，所述第一电容的正极通过所述开关按键与预置电源的正极连接，第一端通过所述第一线圈与所述控制模块连接，第二端与所述接地端连接；所述第一电容的负极与所述预置电源的负极连接，形成接地端；所述第一电阻的一端与控制端连接，另一端与所述接地端连接；所述第二线圈的一端与所述接地端连接，另一端与所述控制模块连接，且所述第一线圈和第二线圈耦合连接；所述控制模块用于在所述开关管的第一端和第二端导通时，控制所述第二线圈两端产生振荡电压。
本发明实施例提供的脉冲点火控制电路包括开关管、第一电容、开关按键、第一电阻、第一线圈、第二线圈和控制模块，其中所述开关管包括第一端、第二端和用于控制所述第一端和第二端连通状态的控制端，其中，所述控制端与所述第一电容的正极连接，所述第一电容的正极通过所述开关按键与预置电源的正极连接，第一端通过所述第一线圈与所述控制模块连接，第二端与所述接地端连接；所述第一电容的负极与所述预置电源的负极连接，形成接地端；所述第一电阻的一端与控制端连接，另一端与所述接地端连接；所述第二线圈的一端与所述接地端连接，另一端与所述控制模块连接，且所述第一线圈和第二线圈耦合连接；所述控制模块用于在所述开关管的第一端和第二端导通时，控制所述第二线圈两端产生振荡电压。由于将开关管的控制端通过第一电阻直接连接到地，从而在开关按键截止时，可以将第一电容两端的电压迅速释放到0电压；因此在燃气灶中不会因为左右炉头打火时，产生串扰现象。
本发明还提供一种燃气灶的工作控制方法及装置，旨在实现降低燃气灶的耗电量。
为实现上述目的，本发明的第三方面提供的一种燃气灶的工作控制方法包括以下步骤：
当预置的待机工作电路检测到显示板具有触摸信号时，控制预置的热电偶检测电路检测热电偶两端的电压值；
根据所述电压值的大小确定燃气灶对应的炉头当前是否存在火焰；
当确定所述炉头存在火焰时，控制预置的待机工作电路进入工作状态。
优选地，所述控制预置的待机工作电路进入工作状态之后还包括：
控制所述预置的待机工作电路中的脉冲控制器开始定时；
当定时时间到达时，控制所述炉头对应的电磁阀关闭，并控制所述预置的待机工作电路和所述热电偶检测电路进入待机状态。
优选地，所述预置的待机工作电路检测到显示板具有触摸信号之后还包括：
检测所述燃气灶的电池电量；
判断检测到的所述电量值是否小于预置值；
当所述电量值小于预置值时，输出第一报警信号。
优选地，所述当定时时间到达时，控制所述炉头对应的电磁阀关闭，并控制所述预置的待机工作电路进入待机状态之后还包括：
当所述定时时间到达之后，间隔第一预置时间再次采集所述炉头的热电偶两端的电压值；
根据再次检测的所述电压值的大小确定所述炉头是否仍然存在火焰；
当所述炉头仍然存在火焰时，控制所述炉头对应的电磁阀关闭，并输出第二报警信号。
优选地，所述当所述待机工作电路检测到显示板具有触摸信号时，控制预置的热电偶 检测电路检测热电偶两端的电压值之前还包括：
当检测到所述燃气灶预置的旋钮被触发时，所述燃气灶的点火控制电路进入工作状态，控制所述炉头对应的电磁阀吸合；
当所述炉头对应的电磁阀吸合后，控制脉冲点火器在第二预置时间段内持续放电。
此外，为实现上述目的，本发明的第四方面还提供一种燃气灶的工作控制装置，所述燃气灶的工作控制装置包括：
第一控制模块，用于当预置的待机工作电路检测到显示板具有触摸信号时，控制预置的热电偶检测电路检测热电偶两端的电压值；
第一确定模块，用于根据所述电压值的大小确定燃气灶对应的炉头当前是否存在火焰；
第二控制模块，用于当确定所述炉头存在火焰时，控制预置的待机工作电路进入工作状态。
优选地，所述燃气灶的工作控制装置还包括：
第三控制模块，用于控制所述预置的待机工作电路中的脉冲控制器开始定时；
第四控制模块，用于当定时时间到达时，控制所述炉头对应的电磁阀关闭，并控制所述预置的待机工作电路和所述热电偶检测电路进入待机状态。
优选地，所述燃气灶的工作控制装置还包括：
检测模块，用于检测所述燃气灶的电池电量；
判断模块，用于判断检测到的所述电量值是否小于预置值；
第一输出模块，用于当所述电量值小于预置值时，输出第一报警信号。
优选地，所述燃气灶的工作控制装置还包括：
电压采集模块，用于当所述定时时间到达之后，间隔第一预置时间再次采集所述炉头的热电偶两端的电压值；
第二确定模块，用于根据再次检测的所述电压值的大小确定所述炉头是否仍然存在火焰；
第五控制模块，用于当所述炉头仍然存在火焰时，控制所述炉头对应的电磁阀关闭，并输出第二报警信号。
优选地，所述燃气灶的工作控制装置还包括点火控制装置，所述点火控制装置包括：
第六控制模块，用于当检测到所述燃气灶预置的旋钮被触发时，所述燃气灶的点火控制电路进入工作状态，控制所述炉头对应的电磁阀吸合；
第七控制模块，用于当所述炉头对应的电磁阀吸合后，控制脉冲点火器在第一预置时间段内持续放电。
本发明实施例通过当所述待机工作电路检测到显示板具有触摸信号时，控制预置的热电偶检测电路检测热电偶两端的电压值；根据所述电压值的大小确定燃气灶对应的炉头当前是否存在火焰；当确定所述炉头存在火焰时，控制预置的待机工作电路进入工作状态。从而实现了降低燃气灶的耗电量。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本发明脉冲点火控制电路一实施例的电路结构示意图。
图2为本发明燃气灶的工作控制方法第一实施例的流程示意图；
图3为本发明燃气灶的工作控制方法一实施例中燃气灶电气原理示例图；
图4为本发明燃气灶的工作控制方法第二实施例的流程示意图；
图5为本发明燃气灶的工作控制方法第四实施例的流程示意图；
图6为本发明燃气灶的工作控制方法第五实施例的流程示意图；
图7为本发明燃气灶的工作控制装置第一实施例的功能模块结构示意图；
图8为本发明燃气灶的工作控制装置第二实施例的功能模块结构示意图；
图9为本发明燃气灶的工作控制装置第四实施例的功能模块结构示意图；
图10为本发明燃气灶的工作控制装置第五实施例的功能模块结构示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
附图标号说明：
Figure PCTCN2016100372-appb-000001
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，本发明实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本发明中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
图1为本发明脉冲点火控制电路一实施例的电路结构示意图，参照图1，在一实施例中，该脉冲点火控制电路包括开关管Q1、第一电容C1、开关按键S、第一电阻R1、第一线圈L1、第二线圈L2和控制模块Ctr10，其中所述开关管Q1包括第一端、第二端和用于控制所述第一端和第二端连通状态的控制端，其中，所述控制端与所述第一电容C1的正极连接，所述第一电容C1的正极通过所述开关按键S与预置电源VCC的正极连接，第一端通过所述第一线圈L1与所述控制模块Ctr10连接，第二端与所述接地端连接；所述第一电容C1的负极与所述预置电源VCC的负极连接，形成接地端；所述第一电阻R1的一端与控制端连接，另一端与所述接地端连接；所述第二线圈L2的一端与所述接地端连接，另一端与所述控制模块Ctr10连接，且所述第一线圈L1和第二线圈L2耦合连接；所述控制模块Ctr10用于在所述开关管Q1的第一端和第二端导通时，控制所述第二线圈L2两端产生振荡电压。
本实施例提供的脉冲点火控制电路主要应用于燃气灶中，用于产生振荡电压。
本实施例中，上述开关按键S为燃气灶中的旋钮开关，具体地，在燃气灶中包括两个炉头，每个炉头对应设置有一个脉冲点火控制电路，以控制其点火操作。上述预置电源可以为燃气灶内置的电池，也可以为外接适配器提供的工作电源，在此不做进一步地限定。
在工作时，当用户按下开关按键S，使得开关按键S处于导通状态。预置电源VCC将对第一电容C1两端进行充电，并在第一电容C1的电压上升至能够使开关管导通的高电平时，开关管Q1导通。此时，第一线圈L1和第二线圈L2在控制模块Ctr10的作用下，使得第二线圈L2两端产生振荡电压。该振荡电压大致呈正弦波形式，且为直流电。
当用户松开开关按键S，第一电容C1两端的电压将通过第一电阻R1进行放电，可以使得开关管Q1控制端的电压迅速变为0电压。此时开关管Q1处于截止状态，第二线圈L2两端将停止产生振荡电压。
具体地，在脉冲点火控制电路中还包括高压脉冲点火电路H20，该高压脉冲点火电路对上述第二线圈L2两端的振荡电压进行耦合升压，最终输出到高压包HV中，为高压包HV提供脉冲点火电压，实现点火功能。
该高压脉冲点火电路H20的电路结构可以根据实际需要进行设置，在此不做进一步地说明。
本发明实施例提供的脉冲点火控制电路包括开关管Q1、第一电容C1、开关按键S、第一电阻R1、第一线圈L1、第二线圈L2和控制模块Ctr10，其中所述开关管Q1包括第一端、第二端和用于控制所述第一端和第二端连通状态的控制端，其中，所述控制端与所述第一电容C1的正极连接，所述第一电容C1的正极通过所述开关按键S与预置电源VCC的正极连接，第一端通过所述第一线圈L1与所述控制模块Ctr10连接，第二端与所述接地端连接；所述第一电容C1的负极与所述预置电源VCC的负极连接，形成接地端；所述第一电阻R1的一端与控制端连接，另一端与所述接地端连接；所述第二线圈L2的一端与所述接地端连接，另一端与所述控制模块Ctr10连接，且所述第一线圈L1和第二线圈L2耦合连接；所述控制模块Ctr10用于在所述开关管Q1的第一端和第二端导通时，控制所述第二线圈L2两端产生振荡电压。由于将开关管Q1的控制端通过第一电阻R1直接连接到地，从而在开关按键S截止时，可以将第一电容C1两端的电压迅速释放到0电压；因此在燃气灶中不会因为左右炉头打火时，产生串扰现象。
可以理解的是，上述控制模块Ctr10的结构可以根据实际需要进行设置，本实施例中，上述控制模块Ctr10包括第一三极管Q2、第二电阻R2、第二电容C2和稳压二极管Z1，所述第一三极管Q2为PNP三极管，其发射极与所述预置电源VCC的正极连接，基极通过所述第二电阻R2与所述第一线圈L1连接，集电极与所述第二线圈L2连接；所述第二电容C2的一端与所述第一三极管Q2的基极连接，另一端与所述第一三极管Q2的发射极连接；其中所述第一线圈L1与所述开关管Q1第一端连接的一端与所述第二线圈L2与所述第一三极管Q2集电极连接的一端为同名端；所述稳压二极管Z1的阳极与所述第一三极管Q2的集电极连接，阴极与所述第一三极管Q2的发射极连接。
具体地，在工作的过程中，当上述开关管Q1的第一端和第二端连通时，上述第二电容C2通过第二电阻R2和第一线圈L1进行放电。使得第一三极管Q2的基极电压降低，当降低到一定值时，第一三极管Q2导通，此时预置电源VCC将通过第一三极管Q2对第二线圈L2进行充电，在充电的过程中，将在第一线圈L1上产生感应电动势，从而使得第一 三极管Q2基极的电压上升，当上述到一定程度后，第一三极管Q2截止，第二线圈L2将通过稳压二极管Z1进行放电。在放电的过程中，第一三极管Q2基极的电压将再次上升，从而再次导致第一三极管Q2截止。因此在开关管Q1导通的过程中，通过第一三极管Q2不断的导通和截止，在第二线圈L2上不断的充电和放电，从而形成振荡电压。
进一步地，基于上述实施例，本实施例中，上述控制模块Ctr10还包括二极管D1，所述二极管D1的阳极与所述第一三极管Q2的基极连接，阴极与所述第一三极管Q2的发射极连接。
本实施例中，上述二极管D1为整流二极管，用于在三极管关断的瞬间实现续流放电。防止第一三极管Q2发射极与基极之间的电压过大，而损坏第一三极管Q2。
可以理解的是，上述开关管Q1的结构可以根据实际需要进行设置，基于上述实施例，本实施例中，优选地，所述开关管Q1包括为第二三极管，所述第二三极管为NPN三极管，其发射极为所述开关管的第二端，集电极为所述开关管的第一端，基极为所述开关管的控制端。
可以理解的是，在其他实施例中，上述开关管Q1还可以采用其他结构，例如，例如可以采用场效应管等。
进一步地，基于上述实施例，本实施例中，上述控制端与所述第一电容C1的正极之间还设有第三电阻R3。
本实施例中，该第三电阻R3为限流电阻，可以连接在控制端与第一电容C1之间，也可以连接在第二三极管的发射极与接地端之间。
进一步地，基于上述实施例，本实施例中，上述脉冲点火控制电路还包括第三电容C3，所述第三电容C3并联于所述第一电阻R1的两端。
本实施例中，该第三电容C3为滤波电容，用于稳定开关管Q1控制端的电压。
本发明还提供一种燃气灶，该燃气灶包括至少两个脉冲点火控制电路，该脉冲点火控制电路的结构可参照上述实施例，在此不再赘述。理所应当地，由于本实施例的燃气灶采用了上述脉冲点火控制电路的技术方案，因此该燃气灶具有上述脉冲点火控制电路所有的有益效果。
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供一种燃气灶的工作控制方法。参照图2，在第一实施例中，该燃气灶的工 作控制方法包括：
步骤S10，当所述待机工作电路检测到显示板具有触摸信号时，控制预置的热电偶检测电路检测热电偶两端的电压值；
步骤S20,根据所述电压值的大小确定燃气灶对应的炉头当前是否存在火焰；若是，则执行步骤S30，否则结束；
步骤S30，控制预置的待机工作电路进入工作状态。
本实施例中，上述燃气灶电气原理示例图如图3所示，燃气灶的MCU主控板21控制燃气灶的运行，脉冲点火器22用于左右炉头点火，燃气灶的左炉头23和右炉头24各有一个热电偶和点火针，如右热电偶25和右点火针26，显示板27燃气灶的输出显示设备，用于显示电池电量指示、定时指示灯、定时时间。上述预置的热电偶为燃气灶炉头的热电偶，它是一种温度传感器，能够直接测量温度，并把温度信号转换成热电动势信号。上述热电偶两端的电压值通过所述热电偶检测电路检测。当炉头存在火焰时，程序控制待机工作电路进入工作状态，当炉头不存在火焰时，表明没有点火，此时无需待机工作电路开始工作，热电偶检测电路保持待机状态。具体的，将获得的电压值与预置电压值对比，当大于预置电压值时可以确定存在火焰，具体预置电压值的大小可以由技术人员根据需要设定。上述待机工作电路包括显示板控制器和脉冲控制器。当检测热电偶两端的电压值确定炉头存在火焰时，这部分电路才被激活。当燃气灶炉头没有火焰时，待机工作电路工作和热电偶检测电路均保持待机状态。
本发明实施例通过当所述待机工作电路检测到显示板具有触摸信号时，控制预置的热电偶检测电路检测热电偶两端的电压值；根据所述电压值的大小确定燃气灶对应的炉头当前是否存在火焰；当确定所述炉头存在火焰时，控制预置的待机工作电路进入工作状态。从而实现了降低燃气灶的耗电量。
进一步地，参照图4，基于本发明燃气灶的工作控制方法第一实施例，在本发明燃气灶的工作控制方法第二实施例中，上述步骤S30之后包括：
步骤S40，控制所述待机工作电路中的脉冲控制器开始定时；
步骤S50，当定时时间到达时，控制所述炉头对应的电磁阀关闭，并控制所述待机工作电路和所述热电偶检测电路进入待机状态。
本实施例中上述脉冲控制器用于进行关火定时，当关火定时时间到达时，输出相应的脉冲控制信号进行关火控制。所述控制炉头对应的电磁阀关闭是指控制有火的炉头的电磁阀关闭，比如左炉头此时有火，此时控制左炉头的电磁阀关闭。同时由于火已经关闭了，此时炉头上并无火焰，会控制上述待机工作电路会再次进入到待机状态。
本实施例通过待机工作电路工作后，控制所述待机工作电路中的脉冲控制器控制电路定时，能够在必要启动定时的时候控制定时电路进入工作状态。
进一步地，基于本发明燃气灶的工作控制方法第二实施例，在本发明燃气灶的工作控制方法第三实施例中，上述当待机工作电路检测到显示板具有触摸信号之后还包括：
步骤S60,检测所述燃气灶的电池电量；
步骤S70,判断检测到的所述电量值是否小于预置值；若是，执行步骤S90，否则结束；
步骤S80，输出第一报警信号。
本实施例中检测所述燃气灶的电池电量是在燃气灶使用电池的情况下，当待机工作电路检测到显示板具有触摸信号之后检查燃气灶的电池电量。所述预置值可以根据需要设定用于对比电池电量值，比如设为2.1伏，则当检测到电池电量不足2.1伏时表明电池电量较低，此时输出第一报警信号。所述第一报警信号以预先定义的通信传输的编码形式表现，具体的通信协议编码规则可以根据需要设定。第一报警信号传递给燃气灶的输出设备，输出设备执行相应操作，提示用户电池处于低电量状态。输出设备可以根据需要设定，可以是一种输出设备也可以是几种输出设备，例如可以是指示灯或鸣笛，上述相应操作可以为指示灯闪烁或鸣笛短鸣。当检测到的电池电量值不小于预置值时，不会输出报警信号。
本实施例通过检测电池电量并与预置电量值对比判断，实现燃气灶定时的同时检测电池电量，并通过输出设备对对低电量情况下进行提醒。可以理解的是，电池电量提醒的方式不止限于以上列举的方式，同时预置值的设定可以为一个值，也可以为多个值，可以提示用户电池在各种不同状态的电量情况。
进一步地，参照图5，基于本发明燃气灶的工作控制方法第二实施例，在本发明燃气灶的工作控制方法第四实施例中，上述步骤S50之后还包括：
步骤S90，当所述定时时间到达之后，间隔第一预置时间再次采集所述炉头的热电偶两端的电压值；
步骤S100，根据再次检测的所述电压值的大小确定所述炉头是否仍然存在火焰；若是，则执行步骤S110，否则结束；
步骤S110，控制所述炉头对应的电磁阀关闭，并输出第二报警信号。
本实施例中当定时时间达到炉头火已经被熄灭以后，将再次采集之前熄灭的炉头电热偶两端的电压值，例如第一次左炉头有火，定时完成后火焰熄灭，此时会再次检测左炉头是否仍有火焰。上述预置时间可以根据需要设定，例如设定为30-45s以后，再次检查对应炉头是否有火焰，目的是为了确认是否火焰已经完全被熄灭。当仍然存在火焰时，会再次控制炉头对应的电磁阀关闭，电磁阀关闭相应的气路会被切断，火焰会被熄灭。所述第二报警信号也是预先定义的通信传输的编码，也会传递给燃气灶的输出设备，用于提示定时时间到达时，燃气灶炉头未被正确关闭。例如，当再次检测还有火焰时，尝试再次关火，输出并传递没有关火的信号给输出设备，输出设备蜂鸣器短鸣三声提示。当用户听到短鸣 后可查看燃气灶火焰情况，如此时还未关火，用户可以手动关火。当所述定时时间到达之后，没有再次检测到火焰，表明炉火已被正确关闭，此时不执行任何操作改变炉头对应的电磁阀状态，也不输出第二报警信号。
本实施例通过定时完成后再次检测火焰情况，确保燃气灶对应炉头被正确关闭。可以理解的是，也可以根据需要将不同的异常情况定义为不同的报警信号，根据不同的报警信号，控制输出设备执行相应的操作。
进一步地，参照图6，基于本发明燃气灶的工作控制方法第一实施例，在本发明燃气灶的工作控制方法第五实施例中，上述步骤S10之前还包括：
步骤S130，当检测到所述燃气灶预置的旋钮被触发时，点火控制电路进入工作状态，控制炉头对应的电磁阀吸合；
步骤S140，当所述炉头对应的电磁阀吸合后，控制脉冲点火器在第二预置时间段内持续放电。
本实施例中的点火控制电路用于为燃气灶的炉头点火。上述预置的旋钮是燃气灶上用于点火的旋钮，当预置的旋钮被触发时是指预置的旋钮被下压并旋转至点火指示时，上述点火控制电路是用于控制点火的电路，首先通过控制脉冲点火器放电来控制电磁阀的吸合。上述第二预置时间可以根据实际需要设定，比如可以设置为2-5s，则在2-5s内无论旋钮是否仍被下压，脉冲点火器都会继续放电2-5s，因此可以保证电磁阀持续吸合一段时间炉头稳定着火。
本实施例通过控制脉冲点火器在持续时间内吸合达到控制燃气灶的延时点火的功能。
本发明还提供一种燃气灶的工作控制装置，参照图7，提供了本发明燃气灶的工作控制装置第一实施例，该实施例中，燃气灶的工作控制装置包括：
第一控制模块10，用于当所述待机工作电路检测到显示板具有触摸信号时，控制预置的热电偶检测电路检测热电偶两端的电压值；
第一确定模块20，用于根据所述电压值的大小确定燃气灶对应的炉头当前是否存在火焰；
第二控制模块30，用于当确定所述炉头存在火焰时，控制预置的待机工作
本实施例中，上述燃气灶电气原理示例图如图3所示，燃气灶的MCU主控板21控制燃气灶的运行，脉冲点火器22用于左右炉头点火，燃气灶的左炉头23和右炉头24各有一个热电偶和点火针，如右热电偶25和右点火针26，显示板27燃气灶的输出显示设备，用于显示电池电量指示、定时指示灯、定时时间。上述预置的热电偶为燃气灶炉头的热电偶，它是一种温度传感器，能够直接测量温度，并把温度信号转换成热电动势信号。上述热电偶两端的电压值通过所述热电偶检测电路检测。当炉头存在火焰时，程序控制待机工作电 路进入工作状态，当炉头不存在火焰时，表明没有点火，此时无需待机工作电路开始工作，热电偶检测电路保持待机状态。具体的，将获得的电压值与预置电压值对比，当大于预置电压值时可以确定存在火焰，具体预置电压值的大小可以由技术人员根据需要设定。上述待机工作电路包括显示板控制器和脉冲控制器。当检测热电偶两端的电压值确定炉头存在火焰时，这部分电路才被激活。当燃气灶炉头没有火焰时，待机工作电路工作和热电偶检测电路均保持待机状态。
本发明实施例通过当所述待机工作电路检测到显示板具有触摸信号时，控制预置的热电偶检测电路检测热电偶两端的电压值；根据所述电压值的大小确定燃气灶对应的炉头当前是否存在火焰；当确定所述炉头存在火焰时，控制预置的待机工作电路进入工作状态。从而实现了降低燃气灶的耗电量。
进一步地，参照图8，基于本发明燃气灶的工作控制装置第一实施例，在本发明燃气灶的工作控制装置第二实施例中，上述燃气灶的工作控制装置还包括：
第三控制模块40，用于控制所述待机工作电路中的脉冲控制器开始定时；
第四控制模块50，用于当定时时间到达时，控制所述炉头对应的电磁阀关闭，并控制所述待机工作电路和所述热电偶检测电路进入待机状态。
本实施例中上述脉冲控制器用于进行关火定时，当关火定时时间到达时，输出相应的脉冲控制信号进行关火控制。所述控制炉头对应的电磁阀关闭是指控制有火的炉头的电磁阀关闭，比如左炉头此时有火，此时控制左炉头的电磁阀关闭。同时由于火已经关闭了，此时炉头上并无火焰，会控制上述待机工作电路会再次进入到待机状态。
本实施例通过待机工作电路工作后，控制所述待机工作电路中的脉冲控制器控制电路定时，能够在必要启动定时的时候控制定时电路进入工作状态。
进一步地，基于本发明燃气灶的工作控制装置第二实施例，在本发明燃气灶的工作控制装置第三实施例中，上述燃气灶的工作控制装置还包括：
检测模块，用于检测所述燃气灶的电池电量；
判断模块，用于判断检测到的所述电量值是否小于预置值；
第一输出模块，用于当所述电量值小于预置值时，输出第一报警信号。
本实施例中检测所述燃气灶的电池电量是在燃气灶使用电池的情况下，当待机工作电路检测到显示板具有触摸信号之后检查燃气灶的电池电量。所述预置值可以根据需要设定用于对比电池电量值，比如设为2.1伏，则当检测到电池电量不足2.1伏时表明电池电量较低，此时输出第一报警信号。所述第一报警信号以预先定义的通信传输的编码形式表现，具体的通信协议编码规则可以根据需要设定。第一报警信号传递给燃气灶的输出设备，输出设备执行相应操作，提示用户电池处于低电量状态。输出设备可以根据需要设定，可以 是一种输出设备也可以是几种输出设备，例如可以是指示灯或鸣笛，上述相应操作可以为指示灯闪烁或鸣笛短鸣。当检测到的电池电量值不小于预置值时，不会输出报警信号。
本实施例通过检测电池电量并与预置电量值对比判断，实现燃气灶定时的同时检测电池电量，并通过输出设备对对低电量情况下进行提醒。可以理解的是，电池电量提醒的方式不止限于以上列举的方式，同时预置值的设定可以为一个值，也可以为多个值，可以提示用户电池在各种不同状态的电量情况。
进一步地，参照图9，基于本发明燃气灶的工作控制装置第二实施例，在本发明燃气灶的工作控制装置第四实施例中，上述燃气灶的工作控制装置还包括：
电压采集模块60，用于当所述定时时间到达之后，间隔第一预置时间再次采集所述炉头的热电偶两端的电压值；
第二确定模块70，用于根据再次检测的所述电压值的大小确定所述炉头是否仍然存在火焰；
第五控制模块80，用于当所述炉头仍然存在火焰时，控制所述炉头对应的电磁阀关闭，并输出第二报警信号。
本实施例中当定时时间达到炉头火已经被熄灭以后，将再次采集之前熄灭的炉头电热偶两端的电压值，例如第一次左炉头有火，定时完成后火焰熄灭，此时会再次检测左炉头是否仍有火焰。上述预置时间可以根据需要设定，例如设定为30-45s以后，再次检查对应炉头是否有火焰，目的是为了确认是否火焰已经完全被熄灭。当仍然存在火焰时，会再次控制炉头对应的电磁阀关闭，电磁阀关闭相应的气路会被切断，火焰会被熄灭。所述第二报警信号也是预先定义的通信传输的编码，也会传递给燃气灶的输出设备，用于提示定时时间到达时，燃气灶炉头未被正确关闭。例如，当再次检测还有火焰时，尝试再次关火，输出并传递没有关火的信号给输出设备，输出设备蜂鸣器短鸣三声提示。当用户听到短鸣后可查看燃气灶火焰情况，如此时还未关火，用户可以手动关火。当所述定时时间到达之后，没有再次检测到火焰，表明炉火已被正确关闭，此时不执行任何操作改变炉头对应的电磁阀状态，也不输出第二报警信号。
本实施例通过定时完成后再次检测火焰情况，确保燃气灶对应炉头被正确关闭。可以理解的是，也可以根据需要将不同的异常情况定义为不同的报警信号，根据不同的报警信号，控制输出设备执行相应的操作。
进一步地，参照图10，基于本发明燃气灶的工作控制装置第二实施例，在本发明燃气灶的工作控制装置第三实施例中，上述燃气灶的工作控制装置还包括：
第六控制模块90，用于当检测到所述燃气灶预置的旋钮被触发时，点火控制电路进入工作状态，控制炉头对应的电磁阀吸合；
第七控制模块100，用于当所述炉头对应的电磁阀吸合后，控制脉冲点火器在第二预置时间段内持续放电。
本实施例中的点火控制电路用于为燃气灶的炉头点火。上述预置的旋钮是燃气灶上用于点火的旋钮，当预置的旋钮被触发时是指预置的旋钮被下压并旋转至点火指示时，上述点火控制电路是用于控制点火的电路，首先通过控制脉冲点火器放电来控制电磁阀的吸合。上述第二预置时间可以根据实际需要设定，比如可以设置为2-5s，则在2-5s内无论旋钮是否仍被下压，脉冲点火器都会继续放电2-5s，因此可以保证电磁阀持续吸合一段时间炉头稳定着火。
本实施例通过控制脉冲点火器在持续时间内吸合达到控制燃气灶的延时点火的功能。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (18)

  1. 一种脉冲点火控制电路，其特征在于，所述脉冲点火控制电路包括：开关管、第一电容、开关按键、第一电阻、第一线圈、第二线圈和控制模块，其中所述开关管包括第一端、第二端和用于控制所述第一端和第二端连通状态的控制端，其中，所述开关管的控制端与所述第一电容的正极连接，所述第一电容的正极通过所述开关按键与预置电源的正极连接，所述开关管的第一端通过所述第一线圈与所述控制模块连接，所述开关管的第二端与所述接地端连接；所述第一电容的负极与所述预置电源的负极连接，形成接地端；所述第一电阻的一端与控制端连接，另一端与所述接地端连接；所述第二线圈的一端与所述接地端连接，另一端与所述控制模块连接，且所述第一线圈和第二线圈耦合连接；所述控制模块用于在所述开关管的第一端和第二端导通时，控制所述第二线圈两端产生振荡电压。
  2. 如权利要求1所述的脉冲点火控制电路，其特征在于，所述控制模块包括第一三极管、第二电阻、第二电容和稳压二极管，所述第一三极管为PNP三极管，其发射极与所述预置电源的正极连接，基极通过所述第二电阻与所述第一线圈连接，集电极与所述第二线圈连接；所述第二电容的一端与所述第一三极管的基极连接，另一端与所述第一三极管的发射极连接；其中所述第一线圈与所述开关管第一端连接的一端和所述第二线圈与所述第一三极管集电极连接的一端为同名端；所述稳压二极管的阳极与所述第一三极管的集电极连接，阴极与所述第一三极管的发射极连接。
  3. 如权利要求2所述的脉冲点火控制电路，其特征在于，所述控制模块还包括二极管，所述二极管的阳极与所述第一三极管的基极连接，阴极与所述第一三极管的发射极连接。
  4. 如权利要求1至3任一项所述的脉冲点火控制电路，其特征在于，所述开关管包括为第二三极管，所述第二三极管为NPN三极管，其发射极为所述开关管的第二端，集电极为所述开关管的第一端，基极为所述开关管的控制端。
  5. 如权利要求4所述的脉冲点火控制电路，其特征在于，所述开关管的控制端与所述第一电容的正极之间还设有第三电阻。
  6. 如权利要求5所述的脉冲点火控制电路，其特征在于，所述脉冲点火控制电路还包括第三电容，所述第三电容并联于所述第一电阻的两端。
  7. 一种燃气灶，其特征在于，包括至少两个如权利要求1至6中任一项所述的脉冲点火控制电路。
  8. 一种燃气灶的工作控制方法，其特征在于，所述燃气灶的工作控制方法包括以下步骤：
    当预置的待机工作电路检测到显示板具有触摸信号时，控制预置的热电偶检测电路检测热电偶两端的电压值；
    根据所述电压值的大小确定燃气灶对应的炉头当前是否存在火焰；
    当确定所述炉头存在火焰时，控制预置的待机工作电路进入工作状态。
  9. 如权利要求8所述的燃气灶的工作控制方法，其特征在于，所述控制预置的待机工作电路进入工作状态之后还包括：
    控制所述预置的待机工作电路中的脉冲控制器开始定时；
    当定时时间到达时，控制所述炉头对应的电磁阀关闭，并控制所述预置的待机工作电路和所述热电偶检测电路进入待机状态。
  10. 如权利要求8或9所述的燃气灶的工作控制方法，其特征在于，所述预置的待机工作电路检测到显示板具有触摸信号之后还包括：
    检测所述燃气灶的电池电量；
    判断检测到的所述电量值是否小于预置值；
    当所述电量值小于预置值时，输出第一报警信号。
  11. 如权利要求9所述的燃气灶的工作控制方法，其特征在于，所述当定时时间到达时，控制所述炉头对应的电磁阀关闭，并控制所述预置的待机工作电路进入待机状态之后还包括：
    当所述定时时间到达之后，间隔第一预置时间再次采集所述炉头的热电偶两端的电压值；
    根据再次检测的所述电压值的大小确定所述炉头是否仍然存在火焰；
    当所述炉头仍然存在火焰时，控制所述炉头对应的电磁阀关闭，并输出第二报警信号。
  12. 如权利要求8-11中任一项所述的燃气灶的工作控制方法，其特征在于，所述当所述待机工作电路检测到显示板具有触摸信号时，控制预置的热电偶检测电路检测热电偶两端的电压值之前还包括：
    当检测到所述燃气灶预置的旋钮被触发时，所述燃气灶的点火控制电路进入工作状 态，控制所述炉头对应的电磁阀吸合；
    当所述炉头对应的电磁阀吸合后，控制脉冲点火器在第二预置时间段内持续放电。
  13. 一种燃气灶的工作控制装置，其特征在于，所述燃气灶的工作控制装置包括：
    第一控制模块，用于当预置的待机工作电路检测到显示板具有触摸信号时，控制预置的热电偶检测电路检测热电偶两端的电压值；
    第一确定模块，用于根据所述电压值的大小确定燃气灶对应的炉头当前是否存在火焰；
    第二控制模块，用于当确定所述炉头存在火焰时，控制预置的待机工作电路进入工作状态。
  14. 如权利要求13所述的燃气灶的工作控制装置，其特征在于，所述燃气灶的工作控制装置还包括：
    第三控制模块，用于控制所述预置的待机工作电路中的脉冲控制器开始定时；
    第四控制模块，用于当定时时间到达时，控制所述炉头对应的电磁阀关闭，并控制所述预置的待机工作电路和所述热电偶检测电路进入待机状态。
  15. 如权利要求14所述的燃气灶的工作控制装置，其特征在于，所述燃气灶的工作控制装置还包括：
    检测模块，用于检测所述燃气灶的电池电量；
    判断模块，用于判断检测到的所述电量值是否小于预置值；
    第一输出模块，用于当所述电量值小于预置值时，输出第一报警信号。
  16. 如权利要求14所述的燃气灶的工作控制装置，其特征在于，所述燃气灶的工作控制装置还包括：
    电压采集模块，用于当所述定时时间到达之后，间隔第一预置时间再次采集所述炉头的热电偶两端的电压值；
    第二确定模块，用于根据再次检测的所述电压值的大小确定所述炉头是否仍然存在火焰；
    第五控制模块，用于当所述炉头仍然存在火焰时，控制所述炉头对应的电磁阀关闭，并输出第二报警信号。
  17. 如权利要求13-16中任一项所述的燃气灶的工作控制装置，其特征在于，所述燃气灶的工作控制装置还包括：
    第六控制模块，用于当检测到所述燃气灶预置的旋钮被触发时，所述燃气灶的点火控制电路进入工作状态，控制所述炉头对应的电磁阀吸合；
    第七控制模块，用于当所述炉头对应的电磁阀吸合后，控制脉冲点火器在第一预置时间段内持续放电。
  18. 一种计算机可读存储介质，包括计算机指令，当所述计算机指令被执行时，使得执行根据权利要求8-12中任一项所述的燃气灶的工作控制方法。
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