Control circuit of gas stove and gas stove

Abstract

The control circuit comprises a first circuit unit and a second circuit unit, the first circuit unit comprises a first processor, an operation module, an indicating lamp module, a first communication interface module and an LED display module, and the second circuit unit comprises a second processor, a first communication interface module and a second communication interface module. The second circuit unit comprises a second processor, a power module, a second communication interface module, an electromagnetic valve interface module, an electromagnetic valve on-off control module and an electromagnetic valve voltage control module. According to the technical scheme, the first circuit unit and the second circuit unit which are in communication connection with each other are arranged, the first circuit unit is mainly used for achieving the man-machine interaction function, and the second circuit unit is mainly used for generating the power supply voltage and controlling the opening degree of the electromagnetic valve in the gas stove. A second processor, an electromagnetic valve on-off control module and an electromagnetic valve voltage control module in the second circuit unit are matched with one another so that the second processor can accurately control the opening and closing degree of an electromagnetic valve, and therefore the taste of dishes cooked by cooking personnel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic circuits, and more specifically to a control circuit of a gas stove and the gas stove. Background Art

[0002] To facilitate the cooking of multiple dishes simultaneously, stove designers often install multiple burners on the stove body. To facilitate power control on each burner, designers often install power control knobs on the stove body. To improve the convenience of stove operation, designers use touch buttons and solenoid valves instead of knobs to control the power of each burner. Existing controllers lack the ability to precisely control the solenoid valves, making it impossible to precisely control the power of each burner, which can affect the taste of the dishes being cooked. Utility Model Content

[0003] In order to solve one or more of the above technical problems, the purpose of the present invention is to provide a control circuit of a gas stove and a gas stove.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] A control circuit of a gas stove comprises a first circuit unit and a second circuit unit;

[0006] The first circuit unit includes a first processor, an operation module, an indicator light module, a first communication interface module and an LED display module, and the first processor is connected to the operation module, the indicator light module, the first communication interface module and the LED display module respectively;

[0007] The second circuit unit includes a second processor, a power supply module, a second communication interface module, a solenoid valve interface module, a solenoid valve on-off control module, and a solenoid valve voltage control module. The power supply module is respectively connected to each circuit module. The second processor is respectively connected to the second communication interface module, the solenoid valve on-off control module, and the solenoid valve voltage control module. The solenoid valve on-off control module is connected to the solenoid valve voltage control module, and the solenoid valve on-off control module is connected to the solenoid valve interface module.

[0008] The first communication interface of the first circuit unit is electrically connected to the second communication interface of the second circuit unit.

[0009] As a further improvement of the above technical solution, the power module includes a point switch, a power chip of model SP6604, a step-down chip of model AP2406, a rectifier, a filter, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a diode D1, a diode D2, a diode D3, a photocoupler U1, a transistor Q1, a transformer and an inductor L1. The transformer is configured with a first winding LA1, a second winding LA2 and a third winding LA3. The power chip is configured with an input end, a feedback end, a driving end and a sampling end. The step-down chip is configured with an input end, an output end, a regulation control end and a feedback end.

[0010] The rectifier is connected to the filter, one end of the first winding LA1 of the transformer is respectively connected to one end of the capacitor C1 and the filter, the other end of the capacitor C1 is connected to the cathode of the diode D1 through the resistor R1, the anode of the diode D1 is respectively connected to the other end of the first winding LA1 of the transformer and the driving end of the power chip, one end of the second winding of the transformer is connected to the ground, the other end of the second winding of the transformer is connected to the anode of the diode D2, the cathode of the diode D2 is connected to the input end of the power chip through the resistor R2, the sampling end of the power chip is connected to the ground through the resistor R3, one end of the third winding LA3 of the transformer is connected to the ground, the other end of the third winding LA3 of the transformer is respectively connected to the anode of the diode D3 and the driving end of the power chip. One end of the capacitor C2 is connected, and the other end of the capacitor C2 is connected to the cathode of the diode D3 through the resistor R4. The cathode of the diode D3 is connected to the input end of the photoelectric coupler U1, and the output end of the photoelectric coupler U1 is connected to the feedback end of the power supply chip. The second processor and the inching switch are both connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to the cathode of the diode D3, and the collector of the transistor Q1 is respectively connected to the input end and the adjustment control end of the buck chip. The output end of the buck chip is connected to one end of the inductor L1, and the other end of the inductor L1 is backward connected to the ground through the resistor R5 and the resistor R6. The capacitor C3 is connected in parallel with the resistor R5, and the feedback end of the buck chip is connected to the connection point between the resistor R5 and the resistor R6.

[0011] As a further improvement of the above technical solution, the solenoid valve on-off control module includes a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a capacitor C4, a capacitor C5, a transistor Q2, a transistor Q3, a transistor Q4 and an inductor L2. The second processor is connected to the base of the transistor Q2, the emitter of the transistor Q2 is connected to the power module, the collector of the transistor Q2 is connected to the ground through the resistor R7 and the inductor L2, the capacitor C5 is connected in parallel with the inductor L2, one end of the resistor R8 is connected to the connection point of the resistor R7 and the inductor L2 and is also connected to the solenoid valve interface module, the other end of the resistor R8 is connected to the power module, and the second processor is connected to the base of the transistor Q2, the emitter of the transistor Q2 is connected to the power module, and the collector of the transistor Q2 is connected to the ground through the resistor R7 and the inductor L2. The capacitor C5 is connected to the inductor L2 in parallel, one end of the resistor R8 is connected to the connection point of the resistor R7 and the inductor L2 and is also connected to the solenoid valve interface module, the other end of the resistor R8 is connected to the power module, and the second processor is connected to the base of the transistor Q2, the emitter of the transistor Q2 is connected to the power module, and the collector of the transistor Q2 is connected to the ground through the resistor R7 and the inductor L2. The processor is connected to the base of the transistor Q4, the emitter of the transistor Q4 is connected to the power module, the collector of the transistor Q4 is connected to the base of the transistor Q3 through the resistor R11, the emitter of the transistor Q3 is connected to the solenoid valve voltage control module, one end of the resistor R12 is connected to the emitter of the transistor Q3, and the other end is connected to the base of the transistor Q3, the collector of the transistor Q3 is connected to the second processor through the resistor R10 and the resistor R9, one end of the capacitor C4 is connected to the ground, and the other end is connected to the connection point of the resistor R9 and the second processor, and the collector of the transistor Q3 is connected to the connection point of the resistor R8 and the capacitor C5 through the resistor R10.

[0012] As a further improvement of the above technical solution, the solenoid valve voltage control module includes a resistor R13, a resistor R14, a resistor R15, a capacitor C6, an inductor L3, a diode D4 and a transistor Q5. The second processor is connected to the base of the transistor Q5 through the resistor R13, and the emitter of the transistor Q5 is connected to the power module. The two ends of the resistor R14 are respectively connected to the base and emitter of the transistor Q5 in a one-to-one correspondence. The collector of the transistor Q5 is respectively connected to the negative electrode of the diode D4 and one end of the inductor L3, and the other end of the inductor L3 is connected to the ground. The positive electrode of the diode D4 is respectively connected to one end of the resistor R15, one end of the capacitor C6 and the power module, and the other end of the resistor R15 and the other end of the capacitor C6 are both connected to the ground.

[0013] As a further improvement of the above technical solution, the second circuit unit further includes a buzzer module, and the second processor is connected to the buzzer module.

[0014] As a further improvement of the above technical solution, the buzzer module includes a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a resistor R21, a resistor R22, a resistor R23, a capacitor C7, a diode D5, a transistor Q6, a transistor Q7, a transistor Q8 and a buzzer, the second processor is connected to the base of the transistor Q6 through the resistor R16, the emitter of the transistor Q6 is connected to the ground, the two ends of the resistor R17 are connected to the base and emitter of the transistor Q6 in a one-to-one correspondence, the collector of the transistor Q6 is connected to the base of the transistor Q7 through the resistor R18, the emitter of the transistor Q7 is connected to the power module, the resistor R19 The two ends of the transistor Q7 are connected one-to-one with the emitter and base of the transistor Q7, the collector of the transistor Q7 is connected to the cathode of the diode D5, the emitter of the transistor Q6 is connected to the collector of the transistor Q7 through the capacitor C7 and the resistor R22, the anode of the diode D5 is connected to the collector of the transistor Q8, the resistor R23 is connected in parallel with the diode D5, the emitter of the transistor Q8 is connected to the ground, the base of the transistor Q8 is connected to the second processor through the resistor R20, the two ends of the resistor R21 are connected one-to-one with the base and emitter of the transistor Q8, and the anode and cathode of the diode D5 are connected one-to-one with the two ends of the buzzer.

[0015] As a further improvement of the above technical solution, the first circuit unit is further provided with a timer module, which is arranged in the first processor. The operation module includes multiple adjustment knobs, switch buttons, increase buttons and decrease buttons. The number of the adjustment knobs is consistent with the number of stove heads of the gas stove and the adjustment knobs correspond one-to-one to the stove heads of the gas stove. The adjustment knobs, the switch buttons, the increase buttons and the decrease buttons are respectively connected to the first processor.

[0016] The utility model provides a gas stove, including a control circuit of the gas stove, characterized in that: the gas stove includes a glass panel and a mounting plate, the switch button, the increase button and the decrease button are all mounted on the mounting plate, the top surface of the mounting plate is provided with a circle of glue grooves, the glue grooves are provided with glue, the mounting plate is bonded to the bottom of the glass panel, and the adjustment knob is mounted on the glass panel.

[0017] The beneficial effect of the present utility model is that the present technical solution is configured with a first circuit unit and a second circuit unit that are communicatively connected to each other. The first circuit unit is mainly used to realize the human-computer interaction function, and the second circuit unit is mainly used to generate power supply voltage and control the opening and closing degree of the solenoid valve in the gas stove. The second processor, the solenoid valve on-off control module and the solenoid valve voltage control module in the second circuit unit cooperate with each other to realize the second processor's precise control of the solenoid valve opening and closing degree, thereby improving the taste of the dishes cooked by the cook. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further explained below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a circuit module framework diagram of the utility model;

[0020] Figure 2 This is a circuit diagram of the power module in the utility model;

[0021] Figure 3 This is the circuit principle diagram of the solenoid valve on-off control module in the utility model;

[0022] Figure 4 This is a circuit diagram of the solenoid valve voltage control module in the utility model;

[0023] Figure 5 This is the circuit schematic diagram of the buzzer module in the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the utility model (configured with three stove heads);

[0025] Figure 7 This is a schematic diagram of the structure of the utility model (configured with four stove heads);

[0026] Figure 8 This is a schematic diagram of the structure of the utility model (configured with five stove heads);

[0027] Figure 9 This is an assembly drawing of the mounting plate, the switch button, the increase button, and the decrease button of the utility model. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] Reference Figures 1 to 5 , the present application discloses a control circuit of a gas stove, a first embodiment of which includes a first circuit unit and a second circuit unit;

[0033] The first circuit unit includes a first processor, an operation module, an indicator light module, a first communication interface module and an LED display module, and the first processor is connected to the operation module, the indicator light module, the first communication interface module and the LED display module respectively;

[0034] The second circuit unit includes a second processor, a power supply module, a second communication interface module, a solenoid valve interface module, a solenoid valve on-off control module, and a solenoid valve voltage control module. The power supply module is respectively connected to each circuit module. The second processor is respectively connected to the second communication interface module, the solenoid valve on-off control module, and the solenoid valve voltage control module. The solenoid valve on-off control module is connected to the solenoid valve voltage control module, and the solenoid valve on-off control module is connected to the solenoid valve interface module.

[0035] The first communication interface of the first circuit unit is electrically connected to the second communication interface of the second circuit unit.

[0036] Specifically, this embodiment is configured with the first circuit unit and the second circuit unit that are communicatively connected to each other. The first circuit unit is mainly used to realize the human-computer interaction function, and the second circuit unit is mainly used to generate the power supply voltage and control the opening and closing degree of the solenoid valve in the gas stove. The second processor, the solenoid valve on-off control module and the solenoid valve voltage control module in the second circuit unit cooperate with each other to realize the second processor's precise control of the solenoid valve opening and closing degree, thereby improving the taste of the dishes cooked by the cook.

[0037] As a further preferred embodiment, in this embodiment, the power module includes a point switch, a power chip model SP6604, a step-down chip model AP2406, a rectifier, a filter, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a diode D1, a diode D2, a diode D3, a photocoupler U1, a PNP transistor Q1, a transformer, and an inductor L1. The transformer is configured with a first winding LA1, a second winding LA2, and a third winding LA3. The power chip is configured with an input terminal, a feedback terminal, a drive terminal, and a sampling terminal. The step-down chip is configured with an input terminal, an output terminal, a regulation control terminal, and a feedback terminal.

[0038] The rectifier is connected to the filter, one end of the first winding LA1 of the transformer is respectively connected to one end of the capacitor C1 and the filter, the other end of the capacitor C1 is connected to the cathode of the diode D1 through the resistor R1, the anode of the diode D1 is respectively connected to the other end of the first winding LA1 of the transformer and the driving end of the power chip, one end of the second winding of the transformer is connected to the ground, the other end of the second winding of the transformer is connected to the anode of the diode D2, the cathode of the diode D2 is connected to the input end of the power chip through the resistor R2, the sampling end of the power chip is connected to the ground through the resistor R3, one end of the third winding LA3 of the transformer is connected to the ground, the other end of the third winding LA3 of the transformer is respectively connected to the anode of the diode D3 and the driving end of the power chip. One end of the capacitor C2 is connected, and the other end of the capacitor C2 is connected to the cathode of the diode D3 through the resistor R4. The cathode of the diode D3 is connected to the input end of the photoelectric coupler U1, and the output end of the photoelectric coupler U1 is connected to the feedback end of the power supply chip. The second processor and the inching switch are both connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to the cathode of the diode D3, and the collector of the transistor Q1 is respectively connected to the input end and the adjustment control end of the buck chip. The output end of the buck chip is connected to one end of the inductor L1, and the other end of the inductor L1 is backward connected to the ground through the resistor R5 and the resistor R6. The capacitor C3 is connected in parallel with the resistor R5, and the feedback end of the buck chip is connected to the connection point between the resistor R5 and the resistor R6.

[0039] As a further preferred embodiment, in this embodiment, the solenoid valve on-off control module is used to control the action of the solenoid valve according to the control signal of the second processor. The number of the solenoid valve on-off control modules is consistent with the number of stove heads provided in the gas stove. In this embodiment, the solenoid valve on-off control module includes resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, capacitor C4, capacitor C5, transistor Q2, transistor Q3, transistor Q4 and inductor L2. The second processor is connected to the base of the transistor Q2, the emitter of the transistor Q2 is connected to the power module, the collector of the transistor Q2 is connected to the ground terminal through the resistor R7 and the inductor L2, the capacitor C5 is connected in parallel with the inductor L2, one end of the resistor R8 is connected to the connection point of the resistor R7 and the inductor L2 and is also connected to the solenoid valve interface module, the other end of the resistor R8 is connected to the power module, and the second processor is connected to the base of the transistor Q2. The base of the transistor Q4 is connected, the emitter of the transistor Q4 is connected to the power module, the collector of the transistor Q4 is connected to the base of the transistor Q3 through the resistor R11, the emitter of the transistor Q3 is connected to the solenoid valve voltage control module, one end of the resistor R12 is connected to the emitter of the transistor Q3, and the other end is connected to the base of the transistor Q3, the collector of the transistor Q3 is connected to the second processor through the resistor R10 and the resistor R9, one end of the capacitor C4 is connected to the ground, and the other end is connected to the connection point of the resistor R9 and the second processor, and the collector of the transistor Q3 is connected to the connection point of the resistor R8 and the capacitor C5 through the resistor R10.

[0040] Further as a preferred embodiment, in this embodiment, the solenoid valve voltage control module is used to control the driving voltage of the solenoid valve according to the control signal of the second processor. The solenoid valve voltage control module includes a resistor R13, a resistor R14, a resistor R15, a capacitor C6, an inductor L3, a diode D4 and a transistor Q5. The second processor is connected to the base of the transistor Q5 through the resistor R13, and the emitter of the transistor Q5 is connected to the power module. The two ends of the resistor R14 are respectively connected to the base and emitter of the transistor Q5 in a one-to-one correspondence. The collector of the transistor Q5 is respectively connected to the negative electrode of the diode D4 and one end of the inductor L3, and the other end of the inductor L3 is connected to the ground. The positive electrode of the diode D4 is respectively connected to one end of the resistor R15, one end of the capacitor C6 and the power module, and the other end of the resistor R15 and the other end of the capacitor C6 are both connected to the ground.

[0041] As a further preferred implementation, in this embodiment, the second circuit unit further includes a buzzer module, and the second processor is connected to the buzzer module.

[0042] Specifically, in this embodiment, the buzzer module includes a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a resistor R21, a resistor R22, a resistor R23, a capacitor C7, a diode D5, a transistor Q6, a transistor Q7, a transistor Q8 and a buzzer. The second processor is connected to the base of the transistor Q6 through the resistor R16, and the emitter of the transistor Q6 is connected to the ground terminal. The two ends of the resistor R17 are connected to the base and emitter of the transistor Q6 in a one-to-one correspondence. The collector of the transistor Q6 is connected to the base of the transistor Q7 through the resistor R18, and the emitter of the transistor Q7 is connected to the power module. The two ends of the resistor R19 The emitter and base of the transistor Q7 are connected one-to-one, the collector of the transistor Q7 is connected to the cathode of the diode D5, the emitter of the transistor Q6 is connected to the collector of the transistor Q7 through the capacitor C7 and the resistor R22, the anode of the diode D5 is connected to the collector of the transistor Q8, the resistor R23 is connected in parallel with the diode D5, the emitter of the transistor Q8 is connected to the ground, the base of the transistor Q8 is connected to the second processor through the resistor R20, the two ends of the resistor R21 are connected one-to-one with the base and emitter of the transistor Q8, and the anode and cathode of the diode D5 are connected one-to-one with the two ends of the buzzer.

[0043] Reference Figure 6 、 Figure 7 and Figure 8As a further preferred embodiment, in this embodiment, the first circuit unit is further provided with a timer module, which is disposed within the first processor. The operation module includes a plurality of adjustment knobs 100, a toggle button 400, an increase button 200, and a decrease button 300. The number of the adjustment knobs 100 corresponds to the number of burner heads on the gas stove, and each adjustment knob 100 corresponds one-to-one with each burner head on the gas stove. The adjustment knobs, the toggle button 400, the increase button 200, and the decrease button 300 are respectively connected to the first processor. In this embodiment, the number of adjustment knobs 100 is preferably three, four, or five, corresponding to the number of burner heads on the gas stove. In this embodiment, the adjustment knob 100 is used to adjust the power level of the corresponding burner head. The first processor transmits relevant data to the second processor based on the input signal of the adjustment knob 100. The second processor then controls the opening and closing degree of the corresponding solenoid valve through the solenoid valve on-off control module based on the data. In this embodiment, the switch button 400, the increase button 200 and the decrease button 300 cooperate to control the fire usage time of each stove head on the gas stove, wherein the switch button 400 is used to switch the stove head targeted when the increase button 200 and the decrease button 300 are pressed, and the increase button 200 and the decrease button 300 are used to increase or decrease the fire usage time of the stove head.

[0044] Reference Figure 9 A gas stove includes the control circuit of the gas stove, the gas stove includes a glass panel 1, and also includes a mounting plate 2, the switch button 400, the increase button 200 and the decrease button 300 are all installed on the mounting plate 2, the top surface of the mounting plate 2 is provided with a circle of glue groove 21, the glue groove 21 is provided with glue, the mounting plate 2 is bonded to the bottom of the glass panel 1, and the adjustment knob 100 is installed on the glass panel 1.

[0045] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A control circuit for a gas stove, characterized in that: comprising a first circuit unit and a second circuit unit; The first circuit unit includes a first processor, an operation module, an indicator light module, a first communication interface module and an LED display module, and the first processor is connected to the operation module, the indicator light module, the first communication interface module and the LED display module respectively; The second circuit unit includes a second processor, a power supply module, a second communication interface module, a solenoid valve interface module, a solenoid valve on-off control module, and a solenoid valve voltage control module. The power supply module is respectively connected to each circuit module. The second processor is respectively connected to the second communication interface module, the solenoid valve on-off control module, and the solenoid valve voltage control module. The solenoid valve on-off control module is connected to the solenoid valve voltage control module, and the solenoid valve on-off control module is connected to the solenoid valve interface module. The first communication interface of the first circuit unit is electrically connected to the second communication interface of the second circuit unit.

2. The control circuit of a gas stove according to claim 1, characterized in that: The power module includes a momentary switch, a power chip of model SP6604, a step-down chip of model AP2406, a rectifier, a filter, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a diode D1, a diode D2, a diode D3, a photocoupler U1, a transistor Q1, a transformer and an inductor L1. The transformer is provided with a first winding LA1, a second winding LA2 and a third winding LA3. The power chip is provided with an input terminal, a feedback terminal, a driving terminal and a sampling terminal. The step-down chip is provided with an input terminal, an output terminal, a regulation control terminal and a feedback terminal. The rectifier is connected to the filter, one end of the first winding LA1 of the transformer is respectively connected to one end of the capacitor C1 and the filter, the other end of the capacitor C1 is connected to the cathode of the diode D1 through the resistor R1, the anode of the diode D1 is respectively connected to the other end of the first winding LA1 of the transformer and the driving end of the power chip, one end of the second winding of the transformer is connected to the ground, the other end of the second winding of the transformer is connected to the anode of the diode D2, the cathode of the diode D2 is connected to the input end of the power chip through the resistor R2, the sampling end of the power chip is connected to the ground through the resistor R3, one end of the third winding LA3 of the transformer is connected to the ground, the other end of the third winding LA3 of the transformer is respectively connected to the anode of the diode D3 and the driving end of the power chip. One end of the capacitor C2 is connected, and the other end of the capacitor C2 is connected to the cathode of the diode D3 through the resistor R4. The cathode of the diode D3 is connected to the input end of the photoelectric coupler U1, and the output end of the photoelectric coupler U1 is connected to the feedback end of the power supply chip. The second processor and the inching switch are both connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to the cathode of the diode D3, and the collector of the transistor Q1 is respectively connected to the input end and the adjustment control end of the buck chip. The output end of the buck chip is connected to one end of the inductor L1, and the other end of the inductor L1 is backward connected to the ground through the resistor R5 and the resistor R6. The capacitor C3 is connected in parallel with the resistor R5, and the feedback end of the buck chip is connected to the connection point between the resistor R5 and the resistor R6.

3. The control circuit of a gas stove according to claim 1, characterized in that: The solenoid valve on-off control module includes a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a capacitor C4, a capacitor C5, a transistor Q2, a transistor Q3, a transistor Q4 and an inductor L2. The second processor is connected to the base of the transistor Q2, the emitter of the transistor Q2 is connected to the power module, the collector of the transistor Q2 is connected to the ground through the resistor R7 and the inductor L2, the capacitor C5 is connected in parallel with the inductor L2, one end of the resistor R8 is connected to the connection point between the resistor R7 and the inductor L2 and is also connected to the solenoid valve interface module, the other end of the resistor R8 is connected to the power module, the second processor is connected to the transistor The base of the transistor Q4 is connected, the emitter of the transistor Q4 is connected to the power module, the collector of the transistor Q4 is connected to the base of the transistor Q3 through the resistor R11, the emitter of the transistor Q3 is connected to the solenoid valve voltage control module, one end of the resistor R12 is connected to the emitter of the transistor Q3, and the other end is connected to the base of the transistor Q3, the collector of the transistor Q3 is connected to the second processor through the resistor R10 and the resistor R9, one end of the capacitor C4 is connected to the ground, and the other end is connected to the connection point of the resistor R9 and the second processor, and the collector of the transistor Q3 is connected to the connection point of the resistor R8 and the capacitor C5 through the resistor R10.

4. The control circuit of a gas stove according to claim 3, characterized in that: The solenoid valve voltage control module includes a resistor R13, a resistor R14, a resistor R15, a capacitor C6, an inductor L3, a diode D4 and a transistor Q5. The second processor is connected to the base of the transistor Q5 through the resistor R13, and the emitter of the transistor Q5 is connected to the power module. The two ends of the resistor R14 are respectively connected to the base and emitter of the transistor Q5 in a one-to-one correspondence. The collector of the transistor Q5 is respectively connected to the negative electrode of the diode D4 and one end of the inductor L3, and the other end of the inductor L3 is connected to the ground. The positive electrode of the diode D4 is respectively connected to one end of the resistor R15, one end of the capacitor C6 and the power module, and the other end of the resistor R15 and the other end of the capacitor C6 are both connected to the ground.

5. The control circuit of a gas stove according to claim 1, characterized in that: The second circuit unit further includes a buzzer module, and the second processor is connected to the buzzer module.

6. The control circuit of the gas stove according to claim 5, characterized in that: The buzzer module includes a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a resistor R21, a resistor R22, a resistor R23, a capacitor C7, a diode D5, a transistor Q6, a transistor Q7, a transistor Q8 and a buzzer. The second processor is connected to the base of the transistor Q6 through the resistor R16, the emitter of the transistor Q6 is connected to the ground, the two ends of the resistor R17 are connected to the base and emitter of the transistor Q6 in a one-to-one correspondence, the collector of the transistor Q6 is connected to the base of the transistor Q7 through the resistor R18, the emitter of the transistor Q7 is connected to the power module, and the two ends of the resistor R19 are connected to the transistor. The emitter and base of transistor Q7 are connected in a one-to-one correspondence, the collector of the transistor Q7 is connected to the cathode of the diode D5, the emitter of the transistor Q6 is connected to the collector of the transistor Q7 via the capacitor C7 and the resistor R22, the anode of the diode D5 is connected to the collector of the transistor Q8, the resistor R23 is connected in parallel with the diode D5, the emitter of the transistor Q8 is connected to the ground, the base of the transistor Q8 is connected to the second processor via the resistor R20, the two ends of the resistor R21 are connected in a one-to-one correspondence to the base and emitter of the transistor Q8, and the anode and cathode of the diode D5 are connected in a one-to-one correspondence to the two ends of the buzzer.

7. The control circuit of a gas stove according to claim 1, characterized in that: The first circuit unit is also provided with a timer module, which is arranged in the first processor. The operation module includes multiple adjustment knobs, switch buttons, increase buttons and decrease buttons. The number of the adjustment knobs is consistent with the number of stove heads of the gas stove and the adjustment knobs correspond one-to-one to the stove heads of the gas stove. The adjustment knobs, the switch buttons, the increase buttons and the decrease buttons are respectively connected to the first processor.

8. A gas stove comprising the control circuit of claim 7, characterized in that: The gas stove includes a glass panel and a mounting plate. The switch button, increase button and decrease button are all mounted on the mounting plate. The top surface of the mounting plate is provided with a circle of glue grooves, and glue is provided in the glue grooves. The mounting plate is bonded to the bottom of the glass panel, and the adjustment knob is mounted on the glass panel.

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