Fire power control device and method of gas stove and gas stove

Abstract

This invention belongs to the field of equipment control technology, specifically providing a firepower control device, firepower control method, and gas stove for a gas stove. The firepower control device includes a first microswitch, a second microswitch, a high-heat flow regulating valve connected to the gas passage, and a controller. The controller has a switch signal input terminal and a signal output terminal. The switch signal input terminal is connected to the first microswitch and the second microswitch respectively, and the signal output terminal is connected to the high-heat flow regulating valve. The controller is used to control the high-heat flow regulating valve according to the signal triggered by the first microswitch and / or the second microswitch when switching its state, so that the gas stove enters either a normal firepower operating state or a high-heat firepower operating state. By controlling the switching state of the two microswitches, the gas stove can quickly switch between normal firepower and high-heat firepower operating states, making it convenient for users.

Description

Technical Field

[0001] This invention relates to the field of equipment control, and in particular to a fire control device, fire control method and gas stove for a gas stove. Background Technology

[0002] Gas stoves are widely used in kitchens as cooking utensils.

[0003] Currently, gas stoves are generally equipped with knobs to control the gas flow in the gas pipeline, thereby controlling the flame of the gas stove from low to high.

[0004] However, during the cooking process, users prefer to cook by stir-frying over high heat. Even if the gas flow is controlled to the maximum value by turning the knob on the existing gas stove, it is impossible to meet the user's demand for stir-frying over high heat. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a firepower control device, a firepower control method, and a gas stove. The gas stove is equipped with a firepower control device having a first micro switch and a second micro switch. By controlling the on / off state of the two micro switches, the gas stove can switch between normal firepower and high-heat cooking firepower operation.

[0006] In a first aspect, the present invention provides a fire control device for a gas stove, comprising: a first micro switch, a second micro switch, a stir-fry flow regulating valve connected to a gas passage, and a controller;

[0007] The controller has a switch signal input terminal and a signal output terminal. The switch signal input terminal is connected to the first micro switch and the second micro switch respectively, and the signal output terminal is connected to the stir-fry flow regulating valve.

[0008] The controller is used to control the high-heat flow regulating valve according to the signal triggered by the first micro switch and / or the second micro switch when the switch state is switched, so that the gas stove enters the normal firepower operation state or the high-heat firepower operation state.

[0009] In an optional embodiment, when the gas stove is operating at normal power, the first micro switch remains closed and the second micro switch remains open.

[0010] The second micro switch enters the closed state under the user's pressing operation. The controller is used to receive the stir-fry start signal triggered by the closure of the second micro switch, and control the valve state of the stir-fry flow regulating valve according to the stir-fry start signal, thereby controlling the gas flow in the gas passage so that the gas stove enters the stir-fry firepower operation state.

[0011] In an optional embodiment, when the gas stove is in the high-heat operation state, the first micro switch remains closed, and the second micro switch remains closed;

[0012] The second micro switch enters the open state under the user's pressing operation. The controller is used to receive the stir-fry stop signal triggered by the opening of the second micro switch, and stop controlling the valve state of the stir-fry flow regulating valve according to the stir-fry stop signal, so that the gas stove enters the normal firepower operation state.

[0013] In an optional embodiment, the fire control device further includes: a timer connected to the controller;

[0014] When the gas stove is in the high-heat operation mode, the timer starts and records the operation time of the high-heat operation mode;

[0015] If the running time exceeds a preset time threshold, the timer sends a stir-fry stop signal to the controller, so that the controller controls the gas stove to enter the normal firepower operation state according to the stir-fry stop signal.

[0016] In an optional embodiment, the fire control device further includes: a pulse starter connected to the controller;

[0017] When the gas stove is in a stopped state, both the first micro switch and the second micro switch remain open.

[0018] The first micro switch and the second micro switch close simultaneously when pressed and rotated by the user. The controller receives the start signal triggered by the simultaneous closure of the first micro switch and the second micro switch, and controls the pulse starter to run so that the gas stove starts and enters the normal firepower operation state.

[0019] In an optional embodiment, the fire control device further includes a knob connected to the first micro switch and the second micro switch;

[0020] The knob is used to respond to user operation, so that the first micro switch and the second micro switch are switched to different switching states.

[0021] Secondly, this application provides a flame control method for a gas stove, which is applicable to the flame control device described in the first aspect, and the flame control method includes:

[0022] When the gas stove is in a stopped state, the first micro switch and the second micro switch close simultaneously under the user's pressing and rotating operation to send a start signal to the controller;

[0023] The controller controls the gas stove to start and enter normal operating state according to the start signal;

[0024] When the gas stove is in normal operating condition, the second micro switch closes under the user's pressing operation to send a stir-fry start signal to the controller;

[0025] The controller controls the valve state of the stir-fry flow regulating valve according to the stir-fry start signal, and controls the gas flow in the gas channel so that the gas stove enters the stir-fry firepower operation state.

[0026] In an optional embodiment, the fire control method further includes:

[0027] When the gas stove is in the high-heat operation state, the second micro switch is activated by the user's pressing operation to send a high-heat stop signal to the controller;

[0028] The controller stops controlling the valve state of the stir-fry flow regulating valve according to the stir-fry stop signal, so that the gas stove enters the normal firepower operation state.

[0029] In an optional embodiment, the running time of the high-heat operation state of the gas stove is recorded when the gas stove enters the high-heat operation state;

[0030] If the running time exceeds a preset time threshold, the controller controls the gas stove to enter normal firepower operation.

[0031] Thirdly, this application provides a gas stove, including: the fire control device of the gas stove described in the first aspect, a gas passage, and a gas stove body;

[0032] The gas stove's fire control device is used to control the gas flow in the gas passage, so that the gas stove body can enter different operating states.

[0033] This invention provides a firepower control device, a firepower control method, and a gas stove. The firepower control device includes a first microswitch, a second microswitch, a high-heat flow regulating valve connected to the gas passage, and a controller. The controller has a switch signal input terminal and a signal output terminal. The switch signal input terminal is connected to the first microswitch and the second microswitch, respectively, and the signal output terminal is connected to the high-heat flow regulating valve. The controller is used to control the high-heat flow regulating valve according to the signal triggered by the first microswitch and / or the second microswitch when switching its on / off state, so that the gas stove enters either a normal firepower operating state or a high-heat firepower operating state. By controlling the on / off state of the two microswitches, the gas stove can quickly switch between normal firepower and high-heat firepower operating states, which is convenient for users.

[0034] It should be understood that the description in the foregoing summary section is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the fire control device for a gas stove provided in this application;

[0037] Figure 2 A schematic diagram of the first state change of a fire control device for a gas stove provided in this application;

[0038] Figure 3 A schematic diagram of the second state change of a fire control device for a gas stove provided in this application;

[0039] Figure 4 A schematic diagram of the third state change of a fire control device for a gas stove provided in this application;

[0040] Figure 5 A schematic flowchart illustrating a fire control method for a gas stove provided in an embodiment of this disclosure;

[0041] Figure 6 This is a schematic diagram of the structure of a gas stove provided in an embodiment of this disclosure.

[0042] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0043] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the invention. It should be understood that the accompanying drawings and embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the invention.

[0044] Gas stoves are widely used in kitchens as cooking utensils.

[0045] Currently, gas stoves are generally equipped with knobs to control the gas flow in the gas pipeline, thereby controlling the flame of the gas stove from low to high.

[0046] However, during the cooking process, users prefer to cook by stir-frying over high heat. Even if the gas flow is controlled to the maximum value by turning the knob on the existing gas stove, it is impossible to meet the user's demand for stir-frying over high heat.

[0047] To meet users' needs for cooking methods based on high-heat stir-frying, some gas stoves are equipped with multiple heat levels, including the aforementioned high-heat stir-frying mode and the normal heat level mode.

[0048] To control the use of gas stoves in different operating states, current gas stove flame control is achieved through control buttons. This means that different control buttons are set on the gas stove's control panel for different flame levels, such as high-heat stir-fry and normal power. Users can control the gas stove's operating state by triggering or pressing the corresponding control button.

[0049] However, such a control structure and method makes the gas stove's fire control device redundant, requiring a large area to accommodate numerous buttons on the control panel. Furthermore, the presence of multiple buttons makes it easy for users to accidentally press the buttons when controlling the gas stove's fire, affecting usability.

[0050] To address the aforementioned issues, the inventors discovered that a fire control device with a first microswitch and a second microswitch can be installed on the gas stove. Users can control the on / off state of the two microswitches through operation. Based on the different on / off states of the two microswitches, the controller can control the gas stove to operate at different fire levels, thereby enabling rapid switching between normal fire level and high-heat operation, which is convenient for users.

[0051] The technical solution of the present invention will be described in detail below with reference to specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0052] Figure 1 Figure 1 shows a schematic diagram of the fire control device for a gas stove provided in this application. The fire control device for the gas stove provided in this application includes a first micro switch 1, a second micro switch 2, a stir-fry flow regulating valve 3 connected to the gas passage, and a controller 4.

[0053] In order to control the operating state of the gas stove's firepower through dual microswitches (first microswitch 1 and second microswitch 2), the dual microswitches will be connected to the controller 4 to send a switch signal to the controller 4. After the controller 4 receives the switch signal, it will coordinate with the stir-fry flow regulating valve to control the switching of the gas stove's firepower operating state based on the signal type represented by the switch signal.

[0054] That is, such as Figure 1 As shown, the controller 4 has a switch signal input terminal 41 and a signal output terminal 42. The switch signal input terminal 41 is connected to the first micro switch 1 and the second micro switch 2 respectively, and the signal output terminal 42 is connected to the stir-fry flow regulating valve 3.

[0055] The controller 4 is used to control the stir-fry flow regulating valve 3 according to the signal triggered by the first micro switch 1 and / or the second micro switch 2 when the switch state is switched, so that the gas stove enters the normal firepower operation state or the stir-fry firepower operation state.

[0056] Of course, unlike the existing technology that uses multiple buttons for fire control, the fire control device provided in this application can be equipped with a knob connected to a dual micro switch. The user can operate the knob by rotating and / or pressing it, so that the knob will trigger the dual micro switch to change the switching state under the user's operation.

[0057] Therefore, in an optional embodiment, the fire control device further includes a knob connected to the first micro switch and the second micro switch; the knob is used to respond to the user's operation to switch the first micro switch and the second micro switch to different switching states.

[0058] The following implementation methods illustrate the process of switching between different firepower operating states of the gas stove.

[0059] Scenario 1: The gas stove switches from being off to operating at normal power.

[0060] Figure 2 This application provides a schematic diagram of the first state change of a gas stove's fire control device, combined with... Figure 2 Generally, when the gas stove is not running, both the first micro switch 1 and the second micro switch 2 remain in the open state. At this time, when the user presses and rotates the switch, both micro switches will be closed simultaneously, triggering a start signal so that the controller 4 can control the gas stove to start based on the start signal.

[0061] In an optional embodiment, the fire control device further includes: a pulse starter connected to the controller;

[0062] When the gas stove is in a stopped state, the first micro switch 1 remains open, and the second micro switch 2 remains open.

[0063] The first micro switch 1 and the second micro switch 2 are closed simultaneously under the user's pressing and rotating operation. The controller 4 receives the start signal triggered by the simultaneous closure of the first micro switch 1 and the second micro switch 2, and controls the pulse starter to run so that the gas stove starts and enters the normal firepower operation state.

[0064] Specifically, when a user needs to use the gas stove, they can rotate and press down the knob in the fire control device. At this time, as the knob is rotated and pressed, it will trigger the switching state change of the first micro switch 1 and the second micro switch 2, so that the first micro switch 1 and the second micro switch 2 close simultaneously and send a corresponding signal (i.e., a signal that they close simultaneously) to the controller 4.

[0065] The controller 4 will recognize that the signal represents the start signal of the gas stove and control the pulse starter connected to it to trigger the corresponding pulse start signal. At this time, the gas passage will be opened, and under the triggering of the pulse start signal, the gas stove will start and enter the normal flame operation state.

[0066] It should be noted that in this embodiment, when the gas stove has finished starting and is in normal operating condition, the user will stop rotating and pressing the knob. At this time, the first micro switch 1 will remain in the closed state, while the second micro switch will remain in the open state.

[0067] In addition, a gas stove's combustion system generally includes a main nozzle and a secondary nozzle. The main nozzle provides a variable maximum gas flow rate, while the secondary nozzle typically provides a fixed gas flow rate. The combined use of the main and secondary nozzles allows the user to switch between low flame (providing heat only through the secondary nozzle) and high flame (providing heat through both the main and secondary nozzles simultaneously).

[0068] The gas flow rate of the main nozzle is controllable, typically ranging from 0 kW to a specific gas flow rate. In this embodiment, the main nozzle, under normal operating conditions, can provide a maximum gas flow rate of 4.1 kW. This nozzle will provide 1 kW of gas. Under normal operating conditions, the user can use a gas flow rate of 0 kW to 5.1 kW (the sum of the maximum gas flow rate provided by the main nozzle and the gas flow rate provided by the secondary nozzle) via the power adjustment knob.

[0069] Scenario 2: The gas stove switches from normal power mode to high-power stir-fry mode:

[0070] Figure 3 This application provides a schematic diagram of the second state change of a gas stove's fire control device, combined with... Figure 3 As mentioned above, under normal firepower operation, the first microswitch 1 will remain in the closed state, while the second microswitch will remain in the open state.

[0071] Unlike existing technologies, the fire control device provided in this application does not have a dedicated button for switching the gas stove from normal firepower to high-heat operation. Users need to use other methods to switch the operating state.

[0072] Therefore, in an optional embodiment, the second micro switch 2 enters a closed state under the user's pressing operation, and the controller 4 is used to receive the stir-fry start signal triggered by the closure of the second micro switch 2, and control the valve state of the stir-fry flow regulating valve 3 according to the stir-fry start signal, so as to control the gas flow in the gas passage, so that the gas stove enters the stir-fry firepower operation state.

[0073] In other words, to simplify the structure of the fire control device, the fire control device provided in this application only has one knob. To meet the user's need to switch the gas stove's firepower from normal to high-heat, the user can operate the knob again (press the knob) when the gas stove is running at normal firepower.

[0074] When the knob is pressed, the second microswitch 2, which is in the open state, will switch from the open state to the closed state and remain in the closed state. Accordingly, the change in the switching state of the second microswitch 2 will trigger a signal sent to the controller 4.

[0075] When the controller 4 receives the signal, it will identify the signal as a stir-fry start signal, and the controller 3 will start the valve state of the stir-fry flow regulating valve 3 so that the flow regulating valve is in a fully open state.

[0076] At this time, the maximum gas volume (i.e. gas flow) of the main nozzle will be greatly increased, for example, it can be increased to 5kw of gas volume, while the secondary nozzle still provides 1kw of gas volume. At this time, the gas stove can use 6kw of gas volume and enters the high-heat operation state to meet the user's high-heat stir-fry needs.

[0077] Scenario 3: The gas stove switches from high-power stir-fry mode to normal power mode:

[0078] Figure 4 This application provides a schematic diagram of the third state change of a gas stove's fire control device, combined with... Figure 4 As mentioned above, when the stir-frying fire is in operation, the first micro switch 1 will remain in the closed state, and the second micro switch 2 will remain in the closed state.

[0079] As is still the case, since the fire control device provided in this application does not have a dedicated button for switching the gas stove from the high-heat operation state to the normal heat operation state, users need to use other methods to switch the operation state.

[0080] Therefore, in an optional embodiment, the second micro switch 2 enters the open state under the user's pressing operation, and the controller 4 is used to receive the stir-fry stop signal triggered by the opening of the second micro switch 2, and stop controlling the valve state of the stir-fry flow regulating valve 3 according to the stir-fry stop signal, so that the gas stove enters the normal firepower operation state.

[0081] In this embodiment, in order to meet the user's need to switch the gas stove's firepower from high-heat to normal, the user can operate the knob again (press the knob) when the gas stove is running at full power.

[0082] When the knob is pressed, the second microswitch 2, which is in the closed state, will switch from the closed state to the open state and remain in the open state. Accordingly, the change in the switching state of the second microswitch 2 will trigger a signal sent to the controller 4.

[0083] When controller 4 receives the signal, it will identify the signal as a stir-fry notification signal. Controller 3 will then adjust the valve status of the stir-fry flow regulating valve 3 to make the flow regulating valve fully semi-open.

[0084] At this time, the maximum gas volume (i.e., gas flow rate) of the main nozzle will be reduced accordingly and returned to the previous gas volume of 4.1kw. The secondary nozzle still provides 1kw of gas. At this time, the gas stove can use 0-5.1kw of gas and enters the normal firepower operation state to meet the normal use needs of users.

[0085] In scenario three, since the high-heat operation mode consumes a large amount of gas, if this mode is maintained for too long, it can easily lead to incomplete combustion and subsequent safety accidents. To improve the safety of the gas stove, in an optional implementation, the operating mode of the gas stove can be switched based on the duration of the high-heat operation.

[0086] Specifically, the fire control device also includes a timer connected to the controller 4;

[0087] When the gas stove is in the high-heat operation mode, the timer starts and records the operation time of the high-heat operation mode;

[0088] If the running time exceeds a preset time threshold, the timer sends a stir-fry stop signal to the controller 4, so that the controller 4 controls the gas stove to enter the normal firepower operation state according to the stir-fry stop signal.

[0089] This invention provides a firepower control device for a gas stove, comprising a first microswitch, a second microswitch, a high-heat flow regulating valve connected to the gas passage, and a controller. The controller has a switch signal input terminal and a signal output terminal. The switch signal input terminal is connected to both the first and second microswitches, and the signal output terminal is connected to the high-heat flow regulating valve. The controller controls the high-heat flow regulating valve based on signals triggered by the first and / or second microswitches during switch-state switching, thereby enabling the gas stove to operate at either normal or high-heat settings. By controlling the switching states of the dual microswitches, the gas stove can quickly switch between normal and high-heat operating states, facilitating user operation.

[0090] Figure 5This is a flowchart illustrating a flame control method for a gas stove provided in an embodiment of the present disclosure, as shown below. Figure 5 As shown, the method includes:

[0091] Step 101: When the gas stove is in a stopped state, the first micro switch and the second micro switch are simultaneously closed under the user's pressing and rotating operation to send a start signal to the controller;

[0092] Step 102: The controller controls the gas stove to start and enter normal operating state according to the start signal;

[0093] Step 103: When the gas stove is in normal operating condition, the second micro switch is closed by the user's pressing operation to send a stir-fry start signal to the controller;

[0094] Step 104: The controller controls the valve state of the stir-fry flow regulating valve according to the stir-fry start signal, and controls the gas flow in the gas channel so that the gas stove enters the stir-fry firepower operation state.

[0095] The execution entity of the above-mentioned control method is the aforementioned fire control device. Compared with the prior art, this control method, because the fire control device of the gas stove includes a first microswitch, a second microswitch, a high-heat flow regulating valve connected to the gas passage, and a controller, allows the user to generate a corresponding trigger signal by controlling the dual microswitches. Upon receiving the trigger signal, the controller then controls the high-heat flow regulating valve to bring the gas stove into either normal firepower operation or high-heat operation mode.

[0096] In an optional embodiment, the fire control method further includes:

[0097] When the gas stove is in the high-heat operation state, the second micro switch is activated by the user's pressing operation to send a high-heat stop signal to the controller;

[0098] The controller stops controlling the valve state of the stir-fry flow regulating valve according to the stir-fry stop signal, so that the gas stove enters the normal firepower operation state.

[0099] In an optional embodiment, the running time of the high-heat operation state of the gas stove is recorded when the gas stove enters the high-heat operation state;

[0100] If the running time exceeds a preset time threshold, the controller controls the gas stove to enter normal firepower operation.

[0101] For details on the specific implementation of the above method, please refer to the foregoing embodiments; this embodiment will not repeat them here.

[0102] also, Figure 6 This is a schematic diagram of the structure of a gas stove provided in an embodiment of the present disclosure, as shown below. Figure 6 As shown, the gas stove includes: the fire control device of the gas stove described in the foregoing embodiment, the gas passage, and the gas stove body;

[0103] The fire control device of the gas stove can be integrated into the main body of the gas stove and used to control the gas flow in the gas channel so that the main body of the gas stove can enter different operating states.

[0104] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features disclosed in this disclosure that have similar functions.

[0105] Furthermore, while the operations are described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in a sequential order. In certain environments, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this disclosure. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0106] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely embodiments of the implementation of the claims.

Claims

1. A gas stove's fire power control device, characterized in that, include: A first micro switch, a second micro switch, a knob connected to the first and second micro switches, a stir-fry flow regulating valve connected to the gas passage, and a controller. The controller has a switch signal input terminal and a signal output terminal. The switch signal input terminal is connected to the first micro switch and the second micro switch respectively, and the signal output terminal is connected to the stir-fry flow regulating valve. The controller is used to control the high-heat flow regulating valve according to the signal triggered by the first micro switch and / or the second micro switch when the switch state is switched, so that the gas stove can enter the normal firepower operation state or the high-heat firepower operation state. The knob is used to respond to user operation, so that the first micro switch and the second micro switch are switched to different switching states; When the gas stove is operating at normal power, the first micro switch remains closed and the second micro switch remains open. With the knob kept at the normal power setting, the second micro switch enters the closed state under the user's pressing operation. The controller is used to receive the stir-fry start signal triggered by the closure of the second micro switch, and control the valve state of the stir-fry flow regulating valve according to the stir-fry start signal, thereby controlling the gas flow in the gas passage so that the gas stove enters the stir-fry power operation state. When the gas stove is in the high-heat operation state, the first micro switch remains closed, and the second micro switch remains closed. When the knob remains at the high-heat level, the second micro switch is opened when pressed again by the user. The controller receives the high-heat stop signal triggered by the opening of the second micro switch and controls the high-heat flow regulating valve to close according to the high-heat stop signal, so that the gas stove enters the normal heat operation state.

2. The fire control device of claim 1, wherein Also includes: A timer connected to the controller; When the gas stove is in the high-heat operation mode, the timer starts and records the operation time of the high-heat operation mode; If the running time exceeds a preset time threshold, the timer sends a stir-fry stop signal to the controller, so that the controller controls the gas stove to enter the normal firepower operation state according to the stir-fry stop signal.

3. The fire control device of claim 1, wherein Also includes: A pulse starter connected to the controller; When the gas stove is in a stopped state, both the first micro switch and the second micro switch remain open. The first micro switch and the second micro switch close simultaneously when pressed and rotated by the user. The controller receives the start signal triggered by the simultaneous closure of the first micro switch and the second micro switch, and controls the pulse starter to run so that the gas stove starts and enters the normal firepower operation state.

4. A method for controlling the flame of a gas stove, wherein the method is applicable to the flame control device as described in any one of claims 1-3, characterized in that, The fire control method includes: When the gas stove is in a stopped state, the first micro switch and the second micro switch close simultaneously under the user's pressing and rotating operation to send a start signal to the controller; The controller controls the gas stove to start and enter the normal firepower operation state according to the start signal; wherein, in the normal firepower operation state, the first micro switch remains closed and the second micro switch remains open. With the knob kept at the normal power setting, the second micro switch closes under the user's pressing operation to send a stir-fry start signal to the controller; The controller controls the valve state of the stir-fry flow regulating valve according to the stir-fry start signal, and controls the gas flow in the gas channel so that the gas stove enters the stir-fry firepower operation state; When the gas stove is in the high-heat operation state, the first micro switch remains closed, and the second micro switch remains closed. When the knob remains at the high-heat level, the second micro switch opens upon the user's re-pressing operation to send a high-heat stop signal to the controller. The controller controls the high-heat flow regulating valve to close according to the high-heat stop signal, so that the gas stove enters the normal heat operation state.

5. The method of controlling a fire according to claim 4, wherein When the gas stove is in the high-heat cooking state, the running time of the high-heat cooking state is recorded; If the running time exceeds a preset time threshold, the controller controls the gas stove to enter normal firepower operation.

6. A gas hob, characterized in that include: The fire control device, gas passage, and gas stove body of any one of claims 1-3; The gas stove's fire control device is used to control the gas flow in the gas passage, so that the gas stove body can enter different operating states.

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