Control method of gas stove, gas stove and intelligent cooking system

Abstract

The invention provides a control method of a gas stove, the gas stove and an intelligent cooking system, and relates to the technical field of intelligent cooking. The method comprises the following steps: igniting the gas stove at the highest gear, and starting the fan at the lowest rotating speed after successful ignition; in the operation process of the gas stove, whether the gear of the valve body is changed or not and the staying duration of the valve body on the gear are monitored, so that the rotating speed of the fan is adjusted; when the gear is reduced to be below the preset gear, the draught fan is controlled to run for a preset third duration at the highest rotating speed firstly, and then the draught fan is controlled to be closed; by presetting the corresponding relation between the valve body gear and the fan rotating speed and combining staying duration judgment and rotating speed hierarchical control, accurate adjustment of the air volume is achieved. The fan is started in a delayed manner after ignition, so that flames are prevented from being blown out; when the gear is turned down, high-speed purging is performed firstly and then closing is performed, so that backfire and fuel gas residues are effectively prevented; the response is quick, the operation is stable, the combustion efficiency and the use safety are improved, and meanwhile, the user experience is improved.

Description

Technical Field

[0001] This invention relates to the field of intelligent cooking technology, and in particular to a control method for a gas stove, a gas stove, and an intelligent cooking system. Background Technology

[0002] In existing gas stoves, the blower system plays a crucial role, providing the necessary air for combustion, promoting complete combustion of gas, and improving thermal efficiency.

[0003] However, traditional gas stoves often use fixed-speed or simple on / off control for their blower systems, failing to dynamically adjust airflow based on combustion conditions. During ignition, excessively high fan speeds can extinguish the flame, leading to ignition failure. When switching between power levels, delayed fan response or malfunctions can affect combustion stability and efficiency. Furthermore, the lack of an effective purging mechanism during shutdown can leave residual gas, potentially posing a safety hazard. Especially when the load suddenly decreases, such as when switching from high to low flame, traditional systems cannot adjust airflow promptly, easily causing backfire, incomplete combustion, or carbon buildup.

[0004] Therefore, there is an urgent need for a gas stove airflow control method that can intelligently respond to changes in gear settings while balancing safety and energy efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a control method for a gas stove, a gas stove, and an intelligent cooking system. By pre-setting the correspondence between valve body settings and fan speed, combined with dwell time judgment and speed graded control, precise airflow adjustment is achieved. The fan starts after a delay following ignition to prevent the flame from being blown out; when the setting is lowered, it first purges at high speed and then shuts off, effectively preventing backfire and gas residue; the system is responsive and operates stably, improving combustion efficiency and safety while enhancing the user experience.

[0006] In a first aspect, the present invention provides a method for controlling a gas stove, wherein a pre-set correspondence between the valve body positions of the gas stove and the fan speed is established, and the method includes: In response to the gas stove's activation command, the valve body is adjusted to the highest setting for ignition, and the ignition status is determined. If ignition is successful, the fan will start at the lowest speed after the preset first time period; Monitor whether the valve body position changes and the duration of residence in that position in order to adjust the fan speed; If the valve body position changes and the dwell time at the changed position is greater than the preset second duration, determine whether the valve body position is greater than or equal to the preset first position; where the correspondence represents the correspondence between the first position and the minimum speed of the fan. If the valve body position is lower than the first position, first control the fan to run at the highest speed for the preset third time, and then control the fan to shut down.

[0007] In some preferred embodiments of the present invention, after the step of monitoring whether the valve body position changes and the duration of residence at the current position to adjust the fan speed, the method further includes: If there is no change, the fan speed will be gradually adjusted from the lowest speed to the highest speed at a preset first time interval; the correspondence also indicates that the highest gear of the valve body corresponds to the highest speed.

[0008] In some preferred embodiments of the present invention, there is at least one gear interval between the first gear and the highest gear; the correspondence also represents the correspondence between the gear interval between the first gear and the highest gear and the preset target fan speed; the method further includes: If the valve body position is detected to decrease to a position between the first and the highest position, determine whether the duration of the valve body position at the current position exceeds the second duration. If not, the fan speed remains unchanged; If so, adjust the fan speed to the target fan speed corresponding to the current gear.

[0009] In some preferred embodiments of the present invention, the method further includes: Determine if the current gear is greater than or equal to the first gear; If so, and if the valve body stays in the current position for less than the preset fourth duration, determine whether the valve body has changed position and the fifth duration it stays in the changed position after the change. If the valve position does not change, or if the fifth duration is less than or equal to the second duration, the fan speed does not change; If the valve body's gear position changes and the fifth duration is greater than the second duration, the fan speed is gradually adjusted from the lowest speed to the target fan speed corresponding to the changed gear position at the first time interval.

[0010] In some preferred embodiments of the present invention, the method further includes: If the valve body stays in the current position for a time greater than or equal to the fourth duration, determine whether the valve body has changed position and, if it has changed, the sixth duration it stays in the changed position. If the valve position does not change, or the sixth duration is less than or equal to the second duration, the fan speed does not change; If the valve body's gear position changes and the sixth time interval is greater than the second time interval, the fan speed is gradually adjusted from the lowest speed to the target fan speed corresponding to the changed gear position at a preset second time interval; wherein, the first time interval is greater than the second time interval.

[0011] In some preferred embodiments of the present invention, the method further includes: In response to the gas stove's shut-off command, the system first controls the fan to run at its highest speed for three hours, and then controls the fan to shut off.

[0012] In some preferred embodiments of the present invention, after the step of determining whether the current gear is greater than or equal to the first gear, the method further includes: If not, determine whether the valve body position first stays at a position greater than or equal to the second position for more than the preset seventh time, and then adjusts to a position less than or equal to the third position for less than the preset eighth time; wherein, the second position is greater than the first position and less than the highest position; the third position is less than the first position. If so, determine whether the valve body's gear position has changed and, if it has changed, the ninth duration of time it stays in the changed gear. If the valve position does not change, or if the ninth duration is less than or equal to the second duration, the fan will not start. If the valve body's gear position changes and the ninth time interval is greater than the second time interval, the fan is started at the lowest speed after the preset first time interval; then the fan speed is gradually adjusted from the lowest speed to the target fan speed corresponding to the changed gear position at the preset third time interval; wherein, the first time interval is greater than the third time interval.

[0013] In some preferred embodiments of the present invention, after determining whether the valve body position first stays at a position greater than or equal to the second position for more than a preset seventh time, and then adjusts to a position less than or equal to the third position for less than a preset eighth time, the method further includes: If not, determine whether the valve body position has changed and the tenth duration of the stay in the changed position after the change; If the valve position does not change, or if the tenth time interval is less than or equal to the second time interval, the fan will not start. If the valve body position changes and the tenth duration is greater than the second duration, the fan will start at the lowest speed after the preset first duration.

[0014] Secondly, the present invention provides a gas stove for performing the control method for the gas stove provided in the first aspect.

[0015] Thirdly, the present invention provides an intelligent cooking system, including the gas stove provided in the second aspect above.

[0016] This invention brings the following beneficial effects: This invention provides a control method for a gas stove, a gas stove, and an intelligent cooking system. The method includes a pre-set correspondence between the gas stove's valve position and the fan speed. The method comprises: responding to a gas stove start command, adjusting the valve position to the highest level for ignition, and determining if ignition is successful; if ignition is successful, starting the fan at the lowest speed after a preset first duration; monitoring whether the valve position changes and the duration of residence at that position to adjust the fan speed; if the valve position changes and the residence time at the changed position is greater than a preset second duration, determining whether the valve position is greater than or equal to a preset first level; wherein the correspondence represents the correspondence between the first level and the fan's lowest speed; if the valve position is less than the first level, first controlling the fan to run at the highest speed for a preset third duration, and then controlling the fan to shut off; by pre-setting the correspondence between the valve position and the fan speed, combined with residence time judgment and speed-level control, precise airflow adjustment is achieved. The fan starts after a delay after ignition to prevent the flame from being blown out; when the speed is lowered, it first purges at high speed and then shuts off to effectively prevent backfire and gas residue; it responds quickly and operates stably, improving combustion efficiency and safety while also enhancing the user experience. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a hybrid combustion system for a gas stove provided in an embodiment of the present invention; Figure 2 A flowchart illustrating a gas stove control method provided in an embodiment of the present invention; Figure 3 This is an overall flowchart of a gas stove control method provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention.

[0019] Icons: 1-Copper core; 2-Copper cover; 3-Ignition needle; 4-Furnace head; 5-Outer ring damper plate; 6-Blower seat; 7-Nozzle holder; 8-Inner ring damper plate; 9-Fan holder; 10-Fan; 400-Memory; 401-Processor; 402-Bus; 403-Communication interface. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] Example 1 This invention provides a method for controlling a gas stove, which pre-sets the correspondence between the valve body settings and the fan speed of the gas stove.

[0028] For details, see Figure 1 The diagram shown is a structural schematic of a hybrid combustion system for a gas stove according to an embodiment of the present invention. Figure 1 The copper core 1, copper cover 2, ignition needle 3, burner head 4, outer ring damper plate 5, blower seat 6, nozzle fixing seat 7, inner ring damper plate 8, blower fixing seat 9 and blower 10 shown can form a complete gas and air mixing combustion system.

[0029] The correspondence between the valve body setting and the fan speed of the gas stove is pre-stored in the gas stove's control system. This correspondence includes multiple fan speeds, each fan speed corresponding to at least one setting. That is, when the valve body setting is in a certain setting, the fan operates at the corresponding speed to achieve air supply.

[0030] There is no need to start the fan when the gas stove is at a lower setting. Therefore, in some preferred embodiments of the present invention, only a portion of the settings may correspond to the fan speed. The settings between a certain middle setting and the highest setting of the gas stove may correspond to the fan speed. Generally, the fan speed gradually increases with the change of settings.

[0031] See Figure 2 The flowchart shown in this embodiment of the invention provides a method for controlling a gas stove, the method including: Step S102: In response to the gas stove's activation command, adjust the valve body to the highest setting for ignition, and determine whether ignition is successful.

[0032] Specifically, after the user turns on the gas valve by rotating the knob or presses the start button, the control system can automatically switch the gas valve to the highest setting, or prompt the user to manually rotate it to the highest setting, while simultaneously triggering the ignition needle. Thermocouples detect the flame signal; if a flame is detected within a predetermined time, ignition is considered successful; otherwise, it is considered a failure.

[0033] Further, see Figure 3 The diagram shown is an overall flowchart of a gas stove control method provided by an embodiment of the present invention. The valve body has nine gear positions, from 1 to 9. Valve positions 4 to 9 are respectively set to correspond to fan speeds N1, N2, N3, N4, N5, and N6. The fan is not activated at the remaining positions (1 to 3). The gas stove starts at position 9.

[0034] Step S104: If ignition is successful, start the fan at the lowest speed after a preset first time period.

[0035] Specifically, if ignition is successful, the control system waits for a preset first duration, for example... Figure 3 The delay lasts for 2 seconds, then the fan is started and runs at the lowest speed in the preset mapping relationship (such as N1 corresponding to gear 4). This delay prevents the strong wind from blowing out the flame at the moment of ignition.

[0036] Step S106: Monitor whether the valve body position changes and the duration of residence in the current position in order to adjust the fan speed.

[0037] Specifically, the system monitors the valve body's gear position during operation. When the gear position changes, the system starts timing and records the dwell time in the new gear position. The speed adjustment strategy (immediate adjustment, delayed adjustment, or no adjustment) depends on the gear position change and whether the dwell time reaches a specific threshold.

[0038] Step S108: If the valve body position changes and the dwell time at the changed position is greater than the preset second duration, determine whether the valve body position is greater than or equal to the preset first position; wherein, the correspondence represents the correspondence between the first position and the minimum speed of the fan.

[0039] Specifically, continue to refer to point 3. Set the first gear to gear 4, which corresponds to the lowest speed setting for the fan to start. When the user adjusts from gear 9 to gear 3 and stays at gear 3 for more than the second duration (e.g., Figure 3 When the time is 2 seconds (as shown), the system determines whether the new gear 3 is ≥ 4; if the time spent in gear 3 does not exceed the second duration, the fan speed is not adjusted.

[0040] In step S110, if the valve body position is lower than the first position, first control the fan to run at the highest speed for a preset third time, and then control the fan to shut down.

[0041] Specifically, continuing the previous example, if gear 3 is less than gear 4, the judgment result is "no". At this time, the system executes the safety transition logic: first, it controls the fan to run at full speed at the highest speed (i.e., N6) for a very short third duration (e.g., Figure 3 The blower is then turned off after a powerful purge (as shown in the diagram, lasting 3 seconds), which effectively removes residual combustion gases from the combustion chamber during downshifting and prevents backfire.

[0042] This invention provides a control method for a gas stove, which pre-sets a correspondence between the gas stove's valve body settings and the fan speed. The method includes: responding to an on / off command to the gas stove, adjusting the valve body settings to the highest setting for ignition, and determining whether ignition is successful; if ignition is successful, starting the fan at the lowest speed after a preset first duration; monitoring whether the valve body settings change and the duration of residence at the current setting to adjust the fan speed; if the valve body settings change and the residence time at the changed setting is greater than a preset second duration, determining whether the valve body settings are greater than or equal to a preset first setting; wherein, the correspondence represents the correspondence between the first setting and the fan's lowest speed; if the valve body settings are less than the first setting, first controlling the fan to run at the highest speed for a preset third duration, and then controlling the fan to shut down; by pre-setting the correspondence between the valve body settings and the fan speed, combined with the residence time judgment and speed graded control, precise adjustment of airflow is achieved. The fan starts after a delay after ignition to prevent the flame from being blown out; when the speed is lowered, it first purges at high speed and then shuts off to effectively prevent backfire and gas residue; it responds quickly and operates stably, improving combustion efficiency and safety while also enhancing the user experience.

[0043] Example 2 Based on the above embodiments, this invention provides another gas stove control method, implemented on the basis of the above embodiments. The main focus is on the control methods for increasing / decreasing the valve body position and shutting off the gas stove during operation, including: After the step of monitoring whether the valve body gear position changes and the duration of residence at the current gear position to adjust the fan speed, the method further includes: if there is no change, gradually adjusting the fan speed from the lowest speed to the highest speed at a preset first time interval; wherein, the correspondence also indicates that the highest gear position of the valve body corresponds to the highest speed.

[0044] For details, please refer to [link / reference]. Figure 3 If ignition is successful and the valve setting remains at a high position (e.g., setting 9) without change, the system will execute an automatic, gradual blower sequence. For example, starting with blower setting 1 (N1), it will automatically activate blower setting 2 (N2), blower setting 3 (N3), and so on, until approximately 90 seconds later, when it activates blower setting 4 (N4, corresponding to valve setting 7), blower setting 5 (N5, corresponding to valve setting 8), and blower setting 6 (N6, corresponding to valve setting 9). This "multi-stage delayed start" strategy achieves gradual air supply under high firepower demands, optimizing combustion efficiency. By automatically and smoothly increasing the fan speed, it provides a gradual air supply for the initial stage of high-load combustion, avoiding flame instability and combustion noise caused by sudden increases in airflow, thus optimizing combustion efficiency and user experience during the high-fire start-up phase.

[0045] Furthermore, in some preferred embodiments of the present invention, there is at least one gear interval between the first gear and the highest gear; the correspondence also characterizes the correspondence between the gear between the first gear and the highest gear and the preset target fan speed; the method further includes: if it is detected that the valve body gear is reduced to a gear between the first gear and the highest gear, it is determined whether the dwell time of the valve body gear at the current gear exceeds a second duration; if not, the fan speed does not change; if so, the fan speed is adjusted to the target fan speed corresponding to the current gear.

[0046] For details, please refer to [link / reference]. Figure 3 The system sets the first gear to 4 (corresponding to N1) and the highest gear to 9 (corresponding to N6). When the system detects that the valve body gear has decreased to a gear between 4 and 9 (e.g., from 9 to 7), it determines whether the dwell time at that gear (7) exceeds the second time limit (2 seconds). If the dwell time does not exceed 2 seconds, the fan speed remains unchanged and is not adjusted immediately; if the dwell time exceeds 2 seconds, the fan speed is directly adjusted to the target fan speed (N4) corresponding to that gear (7). By introducing a "dwell time threshold" judgment, unnecessary changes in fan speed caused by brief, unintentional gear adjustments by the user (such as quickly passing through a gear) are effectively avoided, reducing frequent start-stop and speed fluctuations of the fan, and significantly improving the stability and durability of the system operation.

[0047] Furthermore, in some preferred embodiments of the present invention, the method further includes: determining whether the current gear is greater than or equal to the first gear; if so, and if the time the valve body stays at the current gear is less than a preset fourth duration, determining whether the valve body gear changes and the fifth duration of the time it stays at the changed gear; if the valve body gear does not change, or the fifth duration is less than or equal to the second duration, the fan speed does not change; if the valve body gear changes, and the fifth duration is greater than the second duration, the fan speed is gradually adjusted from the lowest speed to the target fan speed corresponding to the changed gear at a first time interval.

[0048] For details, please refer to [link / reference]. Figure 3The system first determines whether the current dwell time at the specified gear (e.g., gear 7) is greater than or equal to the first gear (gear 4). If so, it further determines whether the dwell time at that gear is greater than or equal to a preset fourth duration (e.g., 3 minutes). If it is less than 3 minutes, and the valve gear changes at this time (e.g., from gear 7 to gear 8), the system monitors the dwell time at the new gear (gear 8) (defined as the fifth duration). If the valve gear no longer changes, or if the fifth duration at the new gear is less than or equal to the second duration (2 seconds), the fan speed remains unchanged. If the valve body position changes and the fifth time spent in the new position exceeds 2 seconds, the system will gradually adjust the fan speed from the lowest speed (N1) to the target speed (N5) corresponding to the new position (8th gear) at the first time interval (e.g., one gear every 30 seconds). By comprehensively judging the current position dwell time and subsequent position changes, while ensuring timely response, invalid operation commands are further filtered out. When the conditions are met, the speed is adjusted at a relatively gentle time interval, ensuring a smooth combustion transition during the gear switching process in the medium and high load range, and taking into account both response speed and system reliability.

[0049] Furthermore, in some preferred embodiments of the present invention, the method further includes: if the valve body's gear position remains at the current gear position for a time greater than or equal to a fourth duration, determining whether the valve body's gear position has changed and the sixth duration of time it remains at the changed gear position after the change; if the valve body's gear position does not change, or the sixth duration is less than or equal to a second duration, the fan speed does not change; if the valve body's gear position changes, and the sixth duration is greater than the second duration, the fan speed is gradually adjusted from the lowest speed to the target fan speed corresponding to the changed gear position at a preset second time interval; wherein, the first time interval is greater than the second time interval.

[0050] For details, please refer to [link / reference]. Figure 3 If the valve body remains at the current setting (e.g., setting 7) for a time greater than or equal to the fourth duration (3 minutes), and then the setting changes (e.g., to setting 8), the system monitors the dwell time at the new setting (setting 8) (defined as the sixth duration). If the valve body no longer changes, or the sixth duration is ≤2 seconds, the fan speed remains unchanged. If the valve body changes and the sixth duration is >2 seconds, the system will gradually adjust the fan speed to the target value at a second time interval (e.g., a faster acceleration rhythm of one setting every 10 seconds). This second time interval (10 seconds) is shorter than the aforementioned first time interval (30 seconds), implementing a "memory acceleration" logic that can intelligently identify scenarios where the user uses the device for extended periods under high load. Once the system "memorizes" this state, when adjusting to a higher setting again, it will replenish air at a faster rate, significantly shortening the time required to reach the target heat, reducing heat loss, and improving cooking response speed and energy efficiency.

[0051] Furthermore, in some preferred embodiments of the present invention, the method further includes: responding to a shutdown command on the gas stove, first controlling the fan to run at its highest speed for a third duration, and then controlling the fan to shut down.

[0052] For details, please refer to [link / reference]. Figure 3 When the system receives a user's instruction to turn off the gas stove, it executes the shutdown purging logic: first, it controls the fan to run at the highest speed (N6) for a preset third duration (e.g., 3 seconds) to powerfully purge the combustion system, and then turns off the fan; the forced high-speed purging during the shutdown phase can thoroughly remove unburned gas and exhaust gas remaining in the combustion chamber, burner cap and flue, greatly reducing the risk of backfire or deflagration during the next ignition due to gas accumulation. It is a key active protection measure to improve the overall safety of the gas stove.

[0053] Example 3 Based on the above embodiments, this invention provides another control method for a gas stove, implemented on the basis of the above embodiments. It mainly describes the control logic for the gas stove operating at a low speed after high load operation, specifically including: After determining whether the current gear is greater than or equal to the first gear, the method further includes: if not, determining whether the valve body gear first stays at a gear greater than or equal to the second gear for more than a preset seventh time duration, and then adjusts to a gear less than or equal to the third gear for less than a preset eighth time duration; wherein, the second gear is greater than the first gear and less than the highest gear; the third gear is less than the first gear; if yes, determining whether the valve body gear changes and the ninth time duration it stays at the changed gear after the change; if the valve body gear does not change, or the ninth time duration is less than or equal to the second time duration, the fan does not start; if the valve body gear changes, and the ninth time duration is greater than the second time duration, the fan is started at the lowest speed after a preset first time duration; the fan speed is gradually adjusted from the lowest speed to the target fan speed corresponding to the changed gear at a preset third time interval; wherein, the first time interval is greater than the third time interval.

[0054] For details, please refer to [link / reference]. Figure 3When the system determines that the current gear is lower than the first gear (gear 4) (e.g., gear 3), it will trace the operating history. The system will determine whether the valve body gear previously remained continuously at a gear greater than or equal to a second gear (e.g., gear 7) for more than a seventh duration (e.g., 3 minutes) before adjusting to a gear less than or equal to a third gear (e.g., gear 3), and whether the dwell time at this lower gear was less than an eighth duration (e.g., 1 minute). If this condition is met, the system will continue to monitor whether the valve body gear changes and the dwell time at the new gear (ninth duration). If the valve body no longer changes, or the ninth duration is ≤2 seconds, the fan will remain off. If the valve body changes and the ninth duration is greater than 2 seconds, the system will first start the fan at the lowest speed (N1) after the first duration (2 seconds), and then gradually increase the speed to the speed corresponding to the new gear over a third time interval. This can limit the long-term operation from high load to low load immediately after high load. By tracing the operating history and applying restrictions, it effectively prevents the combustion system from being in a low-oxygen combustion condition for a long time at high temperature, thereby inhibiting the formation of carbon black, protecting the flame holes, and maintaining the thermal efficiency and cleanliness of long-term use.

[0055] Furthermore, in some preferred embodiments of the present invention, after determining whether the valve body position first stays at a position greater than or equal to the second position for more than a preset seventh time, and then adjusts to a position less than or equal to the third position and stays at it for less than a preset eighth time, the method further includes: if not, determining whether the valve body position has changed and the tenth time it stays at the changed position after the change; if the valve body position does not change, or the tenth time is less than or equal to the second time, the fan does not start; if the valve body position changes and the tenth time is greater than the second time, the fan is started at the lowest speed after a preset first time.

[0056] For details, please refer to [link / reference]. Figure 3 If the condition of "rapidly switching from high load (≥7 gears working for ≥3 minutes) to low load (≤3 gears and working for <1 minute)" is not met, the system directly monitors whether the valve body gear changes and the dwell time in the new gear (tenth time interval). If the valve body gear no longer changes, or the tenth time interval is ≤2 seconds, the fan will not start. If the valve body gear changes and the tenth time interval is >2 seconds, the system performs the most basic startup action: after the preset first time interval (2 seconds), the fan starts at the lowest speed (N1). This ensures the completeness of the control logic, giving the system a definite response strategy under any operation sequence, avoiding logical dead ends, and guaranteeing the robustness of control and the consistency of user experience. Whether and how to continue adjusting the speed depends on other conditions and requires judgment in the corresponding logic branch mentioned above.

[0057] Example 4 Based on the above embodiments, this invention provides a gas stove for executing the control method for the gas stove provided in the above embodiments.

[0058] For details, please refer to [link / reference]. Figure 1 As shown, the gas stove includes: a copper core 1, a copper cover 2, a burner head 4, a gas distribution seat (not shown in the figure, usually located below the burner head), a nozzle fixing seat 7, and a nozzle (located inside the seat) forming a combustion chamber and gas passage; an ignition needle 3 for ignition; a thermocouple (not shown in the figure) for detecting the flame status; a blower seat 6, a blower fixing seat 9, a blower 10, an inner ring damper plate 8, and an outer ring damper plate 5 for adjusting the air supply; and a valve body knob (not shown in the figure) for user operation.

[0059] Furthermore, the gas stove also includes a control system. This control system is typically a microcontroller (MCU), which stores a preset table of correspondence between valve body positions and fan speeds, and has preset or executable control programs as described in Examples 1, 2, and 3. The control system is electrically connected to and controls the ignition needle 3, thermocouple, fan 10, and gas valve body (via actuators such as stepper motors or solenoid valves), thereby enabling it to: respond to user opening commands, control the gas valve body opening to the maximum and trigger ignition; receive thermocouple signals and determine the ignition status; based on the determination result, the real-time monitored valve body position signal (from the knob position sensor), and the internal timer, strictly follow the delay (e.g., first duration 2 seconds), dwell time threshold (e.g., second duration 2 seconds), speed mapping relationship (e.g., 4 gears corresponding to N1), and special logic (e.g., from high gear to low gear, run at high speed for 3 seconds and then shut down), send precise PWM (pulse width modulation) signals or voltage signals to the drive circuit of the fan 10 to control its speed (N1 to N6) and start / stop sequence; and respond to user closing commands, execute a high-speed purging and then completely shut down procedure.

[0060] Therefore, the gas stove in this embodiment, through the combination of its hardware structure (combustion system, fan, sensor) and built-in intelligent control software (method), can automatically and accurately execute... Figure 3 The complete control process shown ultimately achieves efficient, safe, and stable combustion and an excellent user experience.

[0061] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the gas stove described above can be referred to the corresponding process in the aforementioned embodiments of the gas stove control method, and will not be repeated here.

[0062] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the gas stove described above can be referred to the corresponding process in the aforementioned embodiments of the gas stove control method, and will not be repeated here.

[0063] Example 5 Based on the above embodiments, this invention provides an intelligent cooking system, including the gas stove provided in the above embodiments.

[0064] Specifically, the cooking system is centered around a central control unit or smart home gateway, and connects to one or more smart gas stoves as described in Example 4 via a network (such as Wi-Fi, Bluetooth, Zigbee) or wired connection. The central control unit can be integrated into a smart kitchen panel, a range hood control panel, or a standalone smart terminal.

[0065] Users can remotely view the working status of the gas stove (such as the current setting, flame status, and cumulative working time) and receive safety alerts (such as ignition failure or abnormal flameout) through the system's accompanying mobile application (APP) or voice assistant. They can also remotely shut down the stove if it is safe to do so.

[0066] The system can acquire smart recipes via built-in or network connection. When a user selects a recipe, the system can automatically send the heat change curve set in the recipe (i.e., the sequence of valve body settings changing over time) to the gas stove's control system. The gas stove can then automatically adjust the heat accordingly to achieve "one-button cooking" or automated cooking in steps.

[0067] The system can record and analyze the gas and electricity (fan power consumption) usage data for each cooking session, providing users with energy-saving suggestions, or automatically learning user habits to optimize control parameters (such as the optimal air supply for a specific dish) while ensuring cooking results.

[0068] The system can be linked with smoke sensors and gas leak sensors in the kitchen. Once an anomaly is detected, it can immediately and forcibly cut off the gas supply and power to the gas stove, and send an alarm to the user via the network.

[0069] In this embodiment, the gas stove provided in Embodiment 4 serves as both an execution terminal and a sensing terminal. Its precise combustion control capability is the foundation for the reliable implementation of upper-level intelligent applications (such as recipe linkage). The upper-level intelligent system endows the gas stove with interconnectivity, intelligence, and scenario-based capabilities, together forming a safer, more convenient, and more efficient modern intelligent cooking solution.

[0070] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the intelligent cooking system described above can be referred to the corresponding process in the aforementioned embodiment of the gas stove control method, and will not be repeated here.

[0071] Example 6 This invention also provides an electronic device for controlling a gas stove; see [link to related documentation]. Figure 4 The schematic diagram of an electronic device provided in the embodiment of the present invention shown includes a memory 400 and a processor 401. The memory 400 is used to store one or more computer instructions, which are executed by the processor 401 to implement the above-mentioned gas stove control method.

[0072] Furthermore, Figure 4 The electronic device shown also includes a bus 402 and a communication interface 403. The processor 401, the communication interface 403 and the memory 400 are connected via the bus 402.

[0073] The memory 400 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage device. Communication between this system network element and at least one other network element is achieved through at least one communication interface 403 (which can be wired or wireless), such as the Internet, wide area network, local area network, metropolitan area network, etc. The bus 402 can be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 4 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0074] Processor 401 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of processor 401 or by instructions in software form. Processor 401 can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software module can reside in a readily available storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory 400, and processor 401 reads information from memory 400 and, in conjunction with its hardware, completes the steps of the method described in the foregoing embodiments.

[0075] This invention also provides a computer-readable storage medium storing computer-executable instructions. When these computer-executable instructions are called and executed by a processor, they cause the processor to implement the aforementioned gas stove control method. For specific implementation details, please refer to the method embodiments, which will not be repeated here.

[0076] The computer program product of the gas stove control method and electronic device provided in the embodiments of the present invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the methods in the preceding method embodiments. For specific implementation, please refer to the method embodiments, which will not be repeated here.

[0077] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system and / or device described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0078] Furthermore, in the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0079] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling a gas stove, characterized in that, The method includes: A pre-set correspondence between the valve positions of a gas stove and the fan speed. In response to the gas stove's activation command, the valve body is adjusted to the highest setting for ignition, and it is determined whether ignition is successful. If ignition is successful, the fan will start at the lowest speed after a preset first time period; Monitor whether the valve body position changes and the duration of residence at the current position in order to adjust the fan speed; If the valve body position changes and the dwell time at the changed position is greater than a preset second duration, it is determined whether the valve body position is greater than or equal to a preset first position; wherein, the correspondence indicates that the first position corresponds to the minimum speed of the fan; If the valve body position is lower than the first position, the fan is first controlled to run at the highest speed for a preset third time, and then the fan is controlled to shut down.

2. The control method for a gas stove according to claim 1, characterized in that, After the step of monitoring whether the valve body position changes and the duration of residence at the current position to adjust the fan speed, the method further includes: If there is no change, the fan speed is gradually adjusted from the lowest speed to the highest speed at a preset first time interval; wherein, the correspondence also indicates that the highest gear of the valve body corresponds to the highest speed.

3. The control method for a gas stove according to claim 2, characterized in that, There is at least one gear interval between the first gear and the highest gear; the correspondence also represents the correspondence between the gear interval between the first gear and the highest gear and the preset target fan speed; the method further includes: If it is detected that the valve body position is reduced to a position between the first position and the highest position, it is determined whether the duration of the valve body position at the current position exceeds the second duration. If not, the fan speed remains unchanged; If so, adjust the fan speed to the target fan speed corresponding to the current gear.

4. The control method for a gas stove according to claim 3, characterized in that, The method further includes: Determine whether the current gear is greater than or equal to the first gear; If so, and if the valve body stays at the current position for less than a preset fourth duration, determine whether the valve body has changed position and the fifth duration of stay at the changed position after the change. If the valve body's position does not change, or if the fifth duration is less than or equal to the second duration, the fan speed does not change; If the valve body's gear position changes and the fifth duration is greater than the second duration, the fan speed is gradually adjusted from the lowest speed to the target fan speed corresponding to the changed gear position at the first time interval.

5. The control method for a gas stove according to claim 4, characterized in that, The method further includes: If the valve body stays at the current position for a time greater than or equal to the fourth duration, determine whether the valve body has changed position and the sixth duration of stay at the changed position after the change. If the valve body's position does not change, or if the sixth duration is less than or equal to the second duration, the fan speed does not change; If the valve body's gear position changes, and the sixth duration is greater than the second duration, the fan speed is gradually adjusted from the lowest speed to the target fan speed corresponding to the changed gear position at a preset second time interval; wherein, the first time interval is greater than the second time interval.

6. The control method for a gas stove according to claim 5, characterized in that, The method further includes: In response to the shut-off command for the gas stove, the system first controls the fan to run at its highest speed for the third duration, and then controls the fan to shut off.

7. The control method for a gas stove according to claim 4, characterized in that, After determining whether the current gear is greater than or equal to the first gear, the method further includes: If not, determine whether the valve body position first stays at a position greater than or equal to the second position for more than a preset seventh time, and then adjusts to a position less than or equal to the third position for less than a preset eighth time; wherein, the second position is greater than the first position and less than the highest position; the third position is less than the first position. If so, determine whether the valve body's position has changed and the ninth duration of time it remains at the changed position after the change. If the valve body does not change position, or if the ninth duration is less than or equal to the second duration, the fan will not start. If the valve body's gear position changes and the ninth duration is greater than the second duration, the fan is first started at the lowest speed after a preset first duration; then, the fan speed is gradually adjusted from the lowest speed to the target fan speed corresponding to the changed gear position at a preset third time interval; wherein, the first time interval is greater than the third time interval.

8. The control method for a gas stove according to claim 7, characterized in that, After determining whether the valve body position first remains at a position greater than or equal to the second position for more than a preset seventh time, and then adjusts to a position less than or equal to the third position for less than a preset eighth time, the method further includes: If not, determine whether the valve body's position has changed and, if so, the tenth duration of time the valve remains at the changed position. If the valve body does not change position, or if the tenth duration is less than or equal to the second duration, the fan will not start. If the valve body changes position and the tenth duration is greater than the second duration, the fan is started at the lowest speed after a preset first duration.

9. A gas stove, characterized in that, The control method for performing the gas stove as described in any one of claims 1 to 8.

10. An intelligent cooking system, characterized in that, Including the gas stove as described in claim 9.

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