Gas stove with adjustable fire and control method and device thereof

Abstract

The application discloses a gas stove with adjustable fire type and a control method and device thereof, the gas stove comprises a fire cover structure, the fire cover structure has three fire types; the three fire types are combusted by fire holes at different positions inside and outside; the control method comprises the following steps: obtaining a cooking mode; obtaining a real-time temperature of a pot; judging a current cooking stage according to the cooking mode and the real-time temperature of the pot; determining a corresponding preset target fire type of the gas stove according to the cooking mode and the current cooking stage; and controlling the gas stove to work according to the target fire type. The embodiment of the application solves the problem that the existing gas stove can only adjust the fire power and cannot provide adaptive fire types according to actual cooking conditions, can independently adjust the fire type configuration in combination with the cooking mode, the real-time temperature of the pot and the cooking stage, optimizes the cooking effect, realizes precise and automatic regulation and control of cooking, and improves the use and cooking experience of users.

Description

Technical Field

[0001] This invention relates to the field of intelligent kitchen appliance design technology, and in particular to a gas stove with adjustable flame pattern and its control method and device. Background Technology

[0002] Existing gas stoves typically use manual or segmented control of the main gas valve to control the heat output. Once set, the gas flow rate remains constant and cannot be dynamically adjusted according to the actual temperature changes of the cookware. Furthermore, the same single heat output adjustment logic is used in different cooking modes or different cooking stages of the same mode, which can only change the total gas flow rate and affect the cooking quality.

[0003] Therefore, existing gas stoves can only adjust the flame intensity but cannot provide a suitable flame pattern to adapt to actual cooking conditions. Summary of the Invention

[0004] This invention provides a gas stove with adjustable flame pattern and its control method and device, which can autonomously adjust the flame pattern configuration in combination with cooking mode and cooking stage to optimize cooking effect, achieve precise and automated control of cooking temperature, and improve user experience and cooking experience.

[0005] In a first aspect, embodiments of the present invention provide a control method for a gas stove with adjustable flame patterns. The gas stove includes a burner cap structure having three flame patterns. The three flame patterns use burner holes at different internal and external positions for combustion. The control method includes: acquiring a cooking mode; acquiring the real-time temperature of the cookware; determining the current cooking stage based on the cooking mode and the real-time temperature of the cookware; determining a corresponding preset target flame pattern for the gas stove based on the cooking mode and the current cooking stage; and controlling the gas stove to operate according to the target flame pattern.

[0006] Optionally, the current cooking stage can be determined based on the cooking mode and the real-time temperature of the cookware, including: Determine the preset temperature range for each cooking stage corresponding to the cooking mode; The current cooking stage is determined based on the real-time temperature of the cookware and the preset temperature range of each cooking stage corresponding to the cooking mode.

[0007] Optionally, the cooking modes include stir-fry mode, deep-fry mode, steaming mode, and slow-cooking mode; Based on the real-time temperature of the cookware and the preset temperature ranges for each cooking stage corresponding to the cooking mode, the current cooking stage is determined, including: When the cooking mode is stir-fry mode, frying mode, or steaming mode, the current cooking stage is determined according to the preset temperature range of each cooking stage corresponding to the stir-fry mode, frying mode, and steaming mode respectively. When the cooking mode is slow cooking mode, the current cooking stage is determined to be any cooking stage.

[0008] Optionally, the cooking stage includes an initial stage, an intermediate stage, and a final stage; When the cooking mode is stir-fry mode, frying mode, or steaming mode, the current cooking stage is determined based on the preset temperature ranges corresponding to each cooking stage of the stir-fry mode, frying mode, and steaming mode, including: When the real-time temperature of the cookware is within the first temperature range, it is determined that the current stage is in the initial stage. When the real-time temperature of the cookware is in the second temperature range, it is determined that the current stage is in the middle stage. When the real-time temperature of the cookware is in the third temperature range, it is determined that the current stage is the final stage. The first temperature range, the second temperature range, and the third temperature range increase sequentially.

[0009] Optionally, the flame cap structure has an inner ring flame hole, a uniform flame hole, and an outer ring flame hole, wherein the uniform flame hole includes multiple concentric rings of flame holes; the outer ring flame hole surrounds the uniform flame hole, and the uniform flame hole surrounds the inner ring flame hole; The three fire types include a first fire type, a second fire type, and a third fire type; wherein, the first fire type is combustion of the inner ring fire holes; the second fire type is combustion of the inner ring fire holes and the outer ring fire holes simultaneously; and the third fire type is combustion of the inner ring fire holes and the uniform fire holes simultaneously. Based on the cooking mode and the current cooking stage, determine the target flame type of the corresponding preset gas stove, including at least one of the following: When the cooking mode is the stir-fry mode or the deep-fry mode and is currently in the initial stage, the target flame type of the gas stove is determined to be the second flame type; When the cooking mode is the stir-fry mode or the deep-fry mode and is currently in the middle stage, the target flame type of the gas stove is determined to be the second flame type; When the cooking mode is the stir-fry mode or the deep-fry mode and is currently in the final stage, the target flame type of the gas stove is determined to be the first flame type; When the cooking mode is the steaming mode and the current stage is in the initial stage, the target flame type of the gas stove is determined to be the third flame type; When the cooking mode is the steaming mode and it is currently in the middle stage, the target flame type of the gas stove is determined to be the first flame type; When the cooking mode is the steaming mode and the cooking is currently in the final stage, the target flame type of the gas stove is determined to be the first flame type; When the cooking mode is the slow cooking mode, the target flame type of the gas stove is determined to be the third flame type.

[0010] Optionally, after determining the target flame pattern of the gas stove according to the cooking mode and the current cooking stage, before controlling the gas stove to operate according to the target flame pattern, the method further includes: Based on the cooking mode and the current cooking stage, determine the target temperature of the corresponding preset cookware; Calculate the real-time temperature deviation based on the real-time temperature and target temperature of the cookware; The real-time target firepower of the gas stove is determined based on the real-time temperature deviation. The gas stove is controlled to operate according to the target flame pattern and the real-time target firepower.

[0011] Optionally, determining the real-time target firepower of the gas stove based on the real-time temperature deviation includes: According to the formula for calculating flow regulation Calculate the flow regulation amount ;in, For real-time temperature deviation, This is the proportionality coefficient. The integral coefficient is... These are the differential coefficients; According to the flow rate adjustment amount The preset flow range determines the corresponding preset real-time target firepower.

[0012] Optionally, adjust the flow rate accordingly. The preset flow range determines the corresponding preset real-time target firepower, including: exist When the firepower of the real-time target is greater than 80%, it is determined that the firepower level is the first firepower level. ≤ 30% If the firepower of the real-time target is ≤80%, the firepower level of the target is determined to be the second firepower level. exist If the firepower of the real-time target is ≤30%, the firepower level of the target is determined to be the third firepower level. The firepower of the first firepower setting, the second firepower setting, and the third firepower setting decreases sequentially.

[0013] Secondly, embodiments of the present invention also provide a control device for a gas stove with adjustable flame patterns. The gas stove includes a burner cap structure, which has three flame patterns. The three flame patterns use burner holes at different internal and external positions for combustion. The control device includes: The mode acquisition module is used to acquire cooking modes; Temperature acquisition module, used to acquire the real-time temperature of the cookware; The stage determination module is used to determine the current cooking stage based on the cooking mode and the real-time temperature of the cookware. The flame pattern determination module is used to determine the target flame pattern of the gas stove corresponding to the preset cooking mode and the current cooking stage. The execution module is used to control the gas stove to work according to the target flame pattern.

[0014] Thirdly, embodiments of the present invention also provide a gas stove with an adjustable flame pattern, comprising: One or more processors; Storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the control method for the adjustable flame gas stove provided in the above embodiments.

[0015] This invention provides a control method for an adjustable flame type gas stove. Three flame types are generated by burner holes at different positions inside and outside the gas stove. This control method determines the target flame type of the gas stove based on the real-time temperature of the cookware, the cooking mode, and the current cooking stage. Using this technical solution, the problem of existing gas stoves only being able to adjust the heat level and not adapt to actual cooking conditions can be solved. This invention enables the gas stove to autonomously adjust the flame type configuration based on the cooking mode, real-time cookware temperature, and cooking stage, optimizing cooking results and achieving precise and automated control of cooking heat, thus improving the user experience and cooking experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a gas stove with gas distribution function provided in an embodiment of the present invention; Figure 2 yes Figure 1 A partial structural diagram of the gas stove shown. Figure 3 A schematic flowchart illustrating a control method for an adjustable flame gas stove according to an embodiment of the present invention; Figure 4 A flowchart illustrating another control method for an adjustable flame type gas stove provided in an embodiment of the present invention; Figure 5 A flowchart illustrating another control method for an adjustable flame type gas stove provided by the present invention; Figure 6 A schematic flowchart illustrating another control method for an adjustable flame type gas stove provided by the present invention; Figure 7 A schematic diagram of the structure of a control device for an adjustable flame gas stove provided in an embodiment of the present invention; Figure 8 This is a structural schematic diagram of a gas stove with an adjustable flame pattern provided in an embodiment of the present invention.

[0017] in: 10-Warhead structure; 11-Inner ring warhead; 12-Outer ring warhead; 20-Gas passage; 21-First gas passage; 22-Second gas passage; 23-Third gas passage; 30-Warhead hole; 31-Inner ring warhead hole; 32-Energy equalization hole; 33-Outer ring warhead hole; 40-First ejector tube; 41-Second ejector tube; 50-Valve plate; 51-Valve plate drive mechanism; 511-Motor; 512-Motor gear; 513-Valve plate gear; 514-Valve plate shaft; 60 - Parameter Acquisition Module; 62 - Target Fire Pattern Determination Module; 63 - Execution Module; 71-Processor; 72-Storage device; 73-Input device; 74-Output device. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0019] Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but may also have additional steps not included in the figures. The process can correspond to a method, function, procedure, subroutine, subroutine, etc. Moreover, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0020] The term "comprising" and its variations as used in this invention are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment".

[0021] It should be noted that the concepts of "first" and "second" mentioned in this invention are only used to distinguish the corresponding contents and are not used to limit the order or interdependence.

[0022] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] Figure 1 This is a schematic diagram of the structure of a gas stove with gas distribution function provided in an embodiment of the present invention. Figure 2 yes Figure 1 The diagram shown is a partial structural illustration of a gas stove. (For reference only) Figure 1 and Figure 2 The gas stove includes a burner cap structure 10, which has three flame patterns. The three flame patterns use burner holes at different positions inside and outside for combustion.

[0024] Specifically, the gas stove also includes a first injector tube 40 and a valve plate 50. The burner cap structure 10 internally provides a first gas passage 21, a second gas passage 22, and a third gas passage 23, which connect to burner holes 30 at different internal and external locations. The first injector tube 40 is connected to at least two of the first gas passage 21, second gas passage 22, and third gas passage 23. The valve plate 50 is located at the air inlet of the gas passage 20 connected to the first injector tube 40, and is used to change the effective area of ​​the air inlet of each gas passage 20 connected to the first injector tube 40, thereby adjusting the gas flow rate distributed to each gas passage 20 connected to the first injector tube 40.

[0025] The burner cap structure 10, located on the burner base, is the core device for the final combustion of the gas. The gas passage is the path through which the gas flows within the burner cap structure 10. The flame hole 20 is a small hole extending outward from the outer wall of the burner cap structure 10, marking the final gas ejection point. The two are connected, forming the gas flow path from inside the burner cap structure 10 to the external combustion zone. The first ejector tube 40, located below the burner cap structure 10, outputs the mixture of gas and primary air. This mixture is delivered to the burner cap structure 10, distributed through the gas passage 20 inside, and then ejected through the flame hole 30 for combustion. The gas flow rate can be distributed and controlled by changing the overlapping area of ​​the through holes using a rotating valve plate 50.

[0026] Continue to refer to Figure 1and Figure 2 In one specific embodiment, the flame cap structure 10 has an inner ring flame hole 31, a uniform flame hole 32, and an outer ring flame hole 33. The uniform flame hole 32 includes multiple concentric rings of flame holes 30. The outer ring flame hole 33 surrounds the uniform flame hole 32, and the uniform flame hole 32 surrounds the inner ring flame hole 31. A first gas passage 21 communicates with the inner ring flame hole 31, a second gas passage 22 communicates with the uniform flame hole 32, and a third gas passage 23 communicates with the outer ring flame hole 33.

[0027] The inner ring flame hole 31 is located in the inner region of the flame cap structure 10 and is an injection hole connected to the first gas passage 21. Gas flows through the gas passage 20 into the inner ring flame hole 31 and is ejected to form the inner ring main flame, constituting the central combustion area. The uniform flame hole 32 is connected to the second gas passage 22 and is arranged between the inner ring flame hole 31 and the outer ring flame hole 33. It is used to balance the temperature field between the inner and outer ring flames, fill the blank area in the middle combustion, avoid the disconnection between the inner and outer flames and the uneven local temperature, balance the flame distribution on the overall combustion surface, and suppress local flame separation and yellow flame. The outer ring flame hole 33 is an injection hole located in the outer region of the flame cap structure 10 and connected to the gas passage 20. Gas is ejected through the outer ring flame hole 33 to form the outer ring flame, constituting the outer combustion area. Therefore, in this embodiment, the valve plate can be used to achieve independent distribution and regulation of multiple gas channels. After the gas is premixed through the injector tube, it is sent into the gas channel in the burner structure for diversion and pressure stabilization. Finally, the gas is emitted in layers through the inner ring flame hole, the uniform flame hole, and the outer ring flame hole. It can be controlled that the uniform flame hole and the outer ring flame hole ignite separately and form flames at the same time. Together with the inner ring flame hole, different flame patterns are formed, so that the gas stove can form a variety of specific flame patterns to adapt to different cooking needs.

[0028] Continue to refer to Figure 1 and Figure 2 In one specific embodiment, the flame cap structure 10 further includes an inner ring flame cap 11 and an outer ring flame cap 12. The inner ring flame hole 31 is an outlet channel formed on the body of the inner ring flame cap 11 and is a component of the inner ring flame cap 11; the outer ring flame hole 32 is an outlet channel formed on the body of the outer ring flame cap 12 and belongs to the body structure of the outer ring flame cap 12.

[0029] In an optional embodiment, the first gas passage 21 is disposed inside the inner ring burner cap 11, and the second gas passage 22 and the third gas passage 23 are disposed inside the outer ring burner cap 12; the first ejector tube 40 is connected to the second gas passage 22 and the third gas passage 23 respectively.

[0030] The first ejector tube 40 serves as a unified premixed gas source and simultaneously supplies gas to the gas passage 20 within the outer ring burner cap 12. This gas passage 20 is a diversion channel on the burner cap body, serving a secondary flow equalization function to alleviate the uneven distribution of circumferential airflow in the outer ring caused by a single ejector tube. Meanwhile, the inner ring burner cap 11 is equipped with an independent gas passage 20, ensuring independent gas supply to the combustion zones of the inner and outer ring burner caps 11 and 12. Combined with the control of the front-end valve plate 50, the combustion load of the inner and outer ring burner caps 11 and 12 can be adjusted separately.

[0031] Continue to refer to Figure 1 and Figure 2 In a specific embodiment of the present invention, the first ejector tube 40 can be connected to the second gas passage 22 and the third gas passage 23. The valve plate 50 can be disposed between the second gas passage 22 and the third gas passage 23 and can be rotated. The valve plate 50 can be rotated to the position that blocks the second gas passage 22, i.e., the first position, or it can be rotated to the position that blocks the third gas passage 23, i.e., the second position. In addition, it can be rotated between these two positions to form different degrees of blocking effect on the two gas passages, change the effective area of ​​their air inlets, realize the gas distribution function, and adjust the final flame shape of the burner cap.

[0032] In the above embodiments, the gas stove may further include a second ejector tube 41, which is connected to a gas passage 20 other than the gas passage 20 connected to the first ejector tube 40.

[0033] The first ejector tube and the second ejector tube are responsible for supplying gas to different gas passages, which can realize the individual control of gas in a specific gas passage. A certain ejector tube can be opened or closed to supply gas according to combustion needs. On this basis, the first ejector tube can be used to distribute the gas flow to at least two connected gas passages. It can be combined with the flame holes at different positions inside and outside to form flames and form different flame patterns.

[0034] In a specific embodiment of the present invention, the gas stove further includes a valve plate driving mechanism 51, which is tractively connected to the valve plate 50 and is used to drive the valve plate 50 to adjust its position. See details for further information. Figure 1 and Figure 2 The valve plate drive mechanism 51 includes a motor 511, a motor gear 512, a valve plate gear 513, and a valve plate shaft 514; wherein the shaft of the motor 511 is coaxially connected to the shaft of the motor gear 512, the motor gear 512 meshes with the valve plate gear 513, and the shaft of the valve plate gear 513 is coaxially connected to the shaft of the valve plate 50.

[0035] In addition, the gas stove also includes a solenoid valve and a control module (not shown in the figure). The solenoid valve is located at the input end of the first injector tube 40 and is used to change its opening degree to control the gas input flow rate of the first injector tube 40. The control module, electrically connected to both the motor 511 and the solenoid valve, is configured to synchronously control the opening degree of the solenoid valve and the rotation amount of the motor 511, so that the gas flow distribution ratio of each gas passage 20 connected to the first injector tube 40 is related to the gas input flow rate of the first injector tube 40.

[0036] The valve plate drive mechanism 51 serves as the power actuator, driving and connecting the valve plate 50. It receives drive commands from the control module, changing the effective flow area of ​​the corresponding air inlet of each injector, thereby regulating the gas flow to each injector. Solenoid valves are arranged in series in the main gas intake passage or branch gas passages, controlled by the control module. As gas on / off safety actuators, they enable rapid gas path cutoff or connection, and can be used for flameout protection and start / stop safety control. The control module, as the central control unit, receives input signals such as operation commands and flame status signals, and outputs control signals to the valve plate drive mechanism 51 and the solenoid valves, realizing the logical control of the entire gas supply system.

[0037] During operation, the control module sends an adjustment command to the valve plate drive mechanism 51, which drives the valve plate 50 to change the effective flow area of ​​the corresponding air inlet of each injector tube, thereby adjusting the gas flow rate entering each injector tube. The gas entrains air once within the injector tube to form a combustible mixture, which is then delivered to the gas passage 20 inside the inner ring burner cap 11 and outer ring burner cap 12, and ejected for combustion through the burner holes 30. The control module can control the opening and closing of the solenoid valve according to the operating conditions to achieve safe management of the gas passage.

[0038] The above embodiments essentially provide a gas stove with adjustable flame pattern. Based on this, the embodiments of the present invention also provide a control method for a gas stove with adjustable flame pattern. Figure 3 This is a flowchart illustrating a control method for an adjustable flame gas stove according to an embodiment of the present invention. (Refer to...) Figure 3 This method is applicable to cooking using gas stoves. The method can be executed by the control device of the gas stove with adjustable flame type, which can be implemented by software and / or hardware and is generally integrated into the gas stove.

[0039] This gas stove includes a burner cap structure with three flame patterns, each using flame holes located at different positions inside and outside the cookware. Since heating different areas of the cookware during cooking produces different cooking effects—for example, heating the center provides a gentle heat, slowly heating the food, preventing overflow and saving gas; while heating both the center and the periphery simultaneously rapidly increases the cooking temperature and ensures even heating, preventing scorching—this invention designs the burner cap structure with three flame patterns that allow combustion through flame holes at different positions inside and outside. This aims to provide different flame distribution patterns to adapt to different cooking needs and provide optimal cooking results. The specific forms of the three flame patterns can be designed and configured by those skilled in the art according to actual needs, and are not limited here.

[0040] Based on the gas stoves with different flame patterns described above, the control method includes the following steps: S110, Obtain cooking mode.

[0041] Examples of cooking modes include slow cooking, frying, and stir-frying. Different cooking modes have fundamentally different requirements for heat type. For example, slow cooking only requires a low heat to maintain a gentle simmer, frying requires a medium heat to maintain a constant oil temperature, and stir-frying requires high heat throughout and the ability to instantly replenish heat. Therefore, the control center must first obtain the current cooking mode and determine the target heat type parameters that match the mode, so that subsequent heat type outputs can be specifically adapted to the heat requirements of that mode.

[0042] In one specific embodiment, the gas stove is equipped with a mode selection module, which is used to determine the target cooking mode. The mode selection module includes a manual input submodule and an automatic recognition submodule. The manual input submodule allows the user to set the target cooking mode via physical buttons, a rotary knob, or a touchscreen display. The automatic recognition submodule collects the size and material information of the cookware using an image recognition sensor and automatically generates the target cooking mode according to preset recognition rules. This embodiment does not limit the specific implementation of the mode selection module.

[0043] S120: Obtain the real-time temperature of the cookware.

[0044] During cooking, the temperature of the cookware fluctuates in real time, and whether the flame type is suitable for the current working conditions depends on the real-time temperature status of the cookware. Only by continuously acquiring the real-time temperature can the control center determine whether the current flame type is suitable based on the temperature change trend, and actively switch to a more suitable flame type when the temperature drops sharply or rises abnormally, ensuring that the flame type is always adapted to the heat demand of the cookware.

[0045] In one specific embodiment, the gas stove is equipped with a temperature sensor and a temperature acquisition module. The temperature sensor is used to collect the cookware temperature signal in real time during the cooking process and transmits the collected analog temperature signal to the temperature acquisition module. After receiving the analog temperature signal, the temperature acquisition module completes signal sampling and analog-to-digital conversion processing, converting it into digital temperature data. This data is temporarily stored and then uploaded to the control center for subsequent control processes. The specific type and installation location of the temperature sensor can be flexibly selected according to the actual product design requirements, as long as stable and reliable cookware temperature detection is achieved.

[0046] S130. Determine the current cooking stage based on the cooking mode and the real-time temperature of the cookware.

[0047] The complete cooking process of a dish is not a single cooking stage with a constant temperature, but is composed of multiple sub-stages with different heat requirements connected in sequence. The requirements of the heat type are completely different in different cooking stages. If the control center cannot identify which stage it is currently in, it cannot actively switch the heat type and can only passively maintain a single target temperature, causing the cooking effect to deviate from the expected process.

[0048] In one specific embodiment, the control center pre-stores multiple ordered cooking stages for various cooking modes and configures corresponding temperature characteristic criteria for each cooking stage. The control center compares and matches the real-time temperature of the cookware with the preset temperature characteristics of each stage to determine the current cooking stage.

[0049] S140. Determine the target flame type of the corresponding preset gas stove according to the cooking mode and the current cooking stage.

[0050] By selecting a cooking mode and identifying the current cooking stage, a top-level flame control strategy can be formed. However, this strategy is only a qualitative logical judgment and cannot directly drive the hardware actuators. Only by determining the corresponding target flame pattern can quantifiable control commands be output, clearly identifying the burner components involved in the work within the stove, and driving the gas valve and burner to perform regulatory actions.

[0051] In one specific embodiment, the control center has a pre-stored correspondence table of "cooking mode - cooking stage - target flame type". Based on the currently identified cooking mode and the specific cooking stage under that mode, the target flame type of the gas stove corresponding to that stage is determined by querying the pre-stored correspondence table.

[0052] If the temperature drop rate of the cookware is less than -5℃ / s during any cooking stage, it is determined that the cookware has left the gas stove. The control center immediately cuts off the power supply to the flow valve of the gas stove and drives the motor to switch the valve plate back to the first flame mode, waiting for the cookware to reset.

[0053] S150, Control the gas stove to operate according to the target flame pattern.

[0054] The target flame pattern is the optimal heating scheme obtained by the control center through combining cooking mode recognition, real-time cookware temperature acquisition, cooking stage recognition, and flame pattern matching. Only when this scheme is sent to the actuator to drive the burner to generate the corresponding flame according to the target flame pattern can the decision result formed by the aforementioned process be transformed into effective heat acting on the cookware, achieving precise control of the cookware temperature. If the target flame pattern parameters are only calculated but not implemented, the entire flame control logic will remain in the theoretical decision-making stage and will not be able to provide effective heating for the cooking process.

[0055] In one specific implementation, the control center sends a pulse signal to the motor inside the gas stove. The motor gear drives the valve plate gear to rotate, and the valve plate shaft rotates to a predetermined angle, so that the gas stove works according to the target flame pattern.

[0056] This invention provides a control method for a gas stove with an adjustable flame pattern. By acquiring the cooking mode, the gas stove can match and adapt the flame pattern according to the heat demand characteristics corresponding to different cooking modes, overcoming the problem of insufficient control precision caused by the use of a uniform flame pattern for different cooking modes in traditional stoves, and improving the adaptability and rationality of combustion conditions. By acquiring the real-time temperature of the cookware, the method can sense the heat supply and demand status of the cookware in real time, and dynamically switch the flame pattern according to the temperature change trend, ensuring that the flame shape continuously adapts to the actual heating demand of the cookware, solving the problem that a fixed flame pattern cannot cope with poor heating effect caused by temperature fluctuations and changes in operating conditions. By identifying the current cooking stage, the method can further adjust the flame pattern accordingly. Positioning the cooking stage at key time points, the system automatically switches control targets and adjustment strategies at different cooking stages, allowing the flame configuration to adjust systematically with the cooking process. This avoids the drawbacks of insufficient heating in the early stages and excessive heating in the later stages caused by a single control mode throughout the entire process. Through flame analysis output, multi-level decision information is transformed into executable quantitative instructions, and the judgment results of the control system are transformed into burner adjustment actions. This constructs a complete control closed loop of strategy judgment, instruction generation, and execution drive. It can autonomously adjust the flame configuration based on the cooking mode, real-time temperature of the cookware, and cooking stage to optimize cooking effects, achieve precise and automated control of cooking temperature, and improve the user experience and cooking experience.

[0057] Optional, Figure 4 This is a flowchart illustrating another control method for an adjustable flame type gas stove provided by an embodiment of the present invention. This embodiment is a refinement of the above embodiment. Specifically, step S130 of the previous embodiment, determining the current cooking stage based on the cooking mode and the real-time temperature of the pot, can be refined as follows: Determine the preset temperature range for each cooking stage corresponding to the cooking mode; The current cooking stage is determined based on the cookware's real-time temperature and the preset temperature ranges for each cooking stage corresponding to the cooking mode.

[0058] For parts not described in detail in this embodiment, please refer to the foregoing embodiments, such as... Figure 4 As shown, the control method provided in this embodiment includes: S210, Obtain cooking mode.

[0059] S220: Obtain the real-time temperature of the cookware.

[0060] S230. Determine the preset temperature range for each cooking stage corresponding to the cooking mode.

[0061] The temperature requirements for different cooking stages are not fixed values, but rather have their own suitable fluctuation ranges. Below the lower limit of this range, the heating effect for that stage cannot be achieved, while above the upper limit will lead to overheating of the food or deterioration of flavor. Therefore, it is necessary to predefine clear temperature boundaries for each stage, so that the control center has a quantitative standard to judge whether the current temperature is acceptable during execution, and provides a clear target reference for subsequent flame adjustments. Without pre-determining the preset temperature range for each stage, the controller will lack a basis for judging whether the temperature is suitable; it will be unable to identify whether the current temperature is too low and requires additional heat, or too high and requires reduction, causing the entire flame control process to lose its quantitative benchmark and become random adjustment.

[0062] In one specific embodiment, under the current cooking mode, the control center presets a permissible range for the temperature of the bottom of the pot or the medium inside the pot for each cooking stage. When the real-time temperature of the pot is within this preset range, the control center determines that the current temperature control effect meets expectations and no adjustment is needed; when the real-time temperature of the pot is below the lower limit, the control center determines that the current temperature has not reached the standard and heating needs to continue to increase the temperature; when the real-time temperature of the pot is above the upper limit, the control center determines that the current temperature exceeds the permissible range and heating needs to be stopped or the heating intensity reduced to prevent overheating.

[0063] When the real-time temperature of the cookware reaches or enters the preset temperature range of a certain cooking stage, the control center can determine that the current cooking stage has been completed, automatically switch to the next cooking stage, and load the new preset temperature range corresponding to the cooking stage.

[0064] S240. Determine the current cooking stage based on the real-time temperature of the cookware and the preset temperature range of each cooking stage corresponding to the cooking mode.

[0065] During the cooking process, the temperature of the cookware is not a node that is manually marked to switch stages. The control center cannot directly know which stage it is currently in. It must perform logical reasoning by matching the real-time temperature with the preset temperature range of each stage in order to identify the current process position and trigger the corresponding fire pattern strategy, so as to avoid executing incorrect fire control logic due to stage misjudgment.

[0066] In one specific embodiment, the current cooking mode is first obtained through the mode selection module, and then the real-time temperature value of the pot under the cooking mode is obtained through the temperature acquisition module. Finally, the real-time temperature value is compared with the upper and lower limits of the preset temperature range of each cooking stage. When the real-time temperature value of the pot falls within the preset temperature range of a certain cooking stage, it is determined that the current cooking stage is being performed.

[0067] S250. Determine the target flame type of the corresponding preset gas stove according to the cooking mode and the current cooking stage.

[0068] S260, Control the gas stove to operate according to the target flame pattern.

[0069] By defining preset temperature ranges for each cooking stage, the cooktop can convert the temperature requirements of different cooking processes into quantifiable benchmarks, establishing a clear target reference system for cooking control. The cooktop continuously compares the real-time temperature of the cookware with the preset temperature ranges for each stage, autonomously identifies the current sub-stage during cooking, and automatically switches the flame pattern as the cooking stage changes.

[0070] This embodiment refines the steps for determining the current cooking stage based on the cooking mode and the real-time temperature of the cookware. It can accurately identify the cooking stage by relying on preset temperature ranges, thereby driving the flame pattern to change sequentially. Different flame patterns correspond to different flame layouts, and the two work together to precisely control the flame pattern switching points based on a quantified temperature benchmark. This allows the flame layout to dynamically adjust to match the heating requirements of each process, continuously stabilizing the cooking temperature within the appropriate range for each stage. By using targeted flame patterns adapted to the heating characteristics of different cooking stages, it effectively avoids heating defects caused by errors in determining the cooking stage, preventing problems such as localized overheating and scorching, uneven heating of ingredients, and poor flavor, thus fully ensuring the cooking effect.

[0071] Based on the above embodiments, modified embodiments of the above embodiments are proposed. It should be noted that, in order to keep the description brief, only the differences from the above embodiments are described in the modified embodiments.

[0072] Optionally, the cooking modes include stir-fry mode, deep-fry mode, steaming mode, and slow-cooking mode; the above step S240, determining the current cooking stage based on the real-time temperature of the pot and the preset temperature range of each cooking stage corresponding to the cooking mode, can be further refined as follows: S2401. When the cooking mode is stir-fry mode, frying mode and steaming mode, determine the current cooking stage according to the preset temperature range of each cooking stage corresponding to the stir-fry mode, frying mode and steaming mode respectively. The technological characteristics of different cooking modes determine that their accuracy requirements and execution methods for determining the cooking stage are fundamentally different. The refined processing of cooking modes can enable the control center to adopt differentiated stage identification strategies for different cooking modes, avoiding the use of uniform logic that may lead to improper matching of fire patterns in some cooking modes and cause deviations in heat control.

[0073] In one specific embodiment, the stir-fry, deep-fry, and steaming modes each have three cooking stages. The preset temperature ranges for each stage are non-overlapping and clearly distinguishable. For example, the initial, middle, and final stages of the stir-fry mode correspond to independent, non-overlapping temperature ranges. The stage switching is indicated by the real-time temperature crossing the range boundary, and the current cooking stage is determined based on the range in which the real-time temperature falls. All three modes have clearly quantifiable stage switching conditions. By precisely comparing the real-time temperature with the preset temperature ranges for each cooking stage, the control center can accurately identify the current cooking stage and trigger the corresponding target heat pattern for each cooking stage.

[0074] S2402. When the cooking mode is slow cooking mode, determine whether the current cooking stage is any cooking stage.

[0075] In slow cook mode, the entire cooking process only requires maintaining a constant simmer. There are no phased transitions in temperature range or clear boundaries between cooking stages. The cooking process always operates under the same heat requirement. Setting slow cook mode to any cooking stage essentially skips the detailed judgment of cooking stages in this mode, allowing the control center to always execute a single heat pattern strategy. This avoids unnecessary disturbances introduced by the intervention of multiple cooking stage logic, ensuring the gentleness and continuity of the entire slow cook process.

[0076] Through the aforementioned refined interval division, the control center can adaptively adjust the execution depth of the cooking stage judgment logic based on the technological characteristics of different cooking modes. For stir-frying, deep-frying, and steaming modes, it performs refined cooking stage identification and heat type switching control; for single-cooking stage modes such as slow cooking, it simplifies the judgment logic and maintains stable heat. This mechanism can ensure the accuracy of heat type control in various modes, reduce redundant calculations, lower the probability of misjudgment, and achieve optimal matching between the stage judgment strategy and the technological requirements of each cooking mode.

[0077] Optionally, the cooking stage includes an initial stage, an intermediate stage, and a final stage. Step S2401, when the cooking mode is stir-frying, frying, or steaming, determines the current cooking stage based on the preset temperature ranges corresponding to each cooking stage of the stir-frying, frying, and steaming modes. This can be further refined as follows: S24011. When the real-time temperature of the cookware is in the first temperature range, it is determined that the current stage is in the initial stage. S24012. When the real-time temperature of the cookware is in the second temperature range, it is determined that the current stage is in the middle stage. S24013. When the real-time temperature of the cookware is in the third temperature range, it is determined that the current stage is the final stage. The first temperature range, the second temperature range, and the third temperature range increase sequentially.

[0078] Even among cooking modes that belong to multiple cooking stages, there are still significant differences in the initial, intermediate, and final stages of stir-frying, deep-frying, and steaming / boiling modes in terms of temperature range settings and cooking stage switching logic. It is necessary to define the temperature range thresholds for each cooking stage for each type of cooking mode and clarify the criteria for judging cooking stage switching, so as to ensure that the control center can accurately determine the current cooking stage under different cooking modes.

[0079] For example, when the cooking mode is stir-fry mode, if the real-time temperature of the pot is detected to be in the first temperature range (T<160℃), the cooking is determined to be in the initial stage. At this time, a heating strategy is executed to control the heating power so that the target pot temperature can be rapidly increased to 180℃, and when this temperature is reached, a stage switching command is triggered to enter the intermediate stage.

[0080] When the real-time temperature of the cookware is within the second temperature range (200℃>T≥160℃), the cooking is determined to be in the intermediate stage. In this stage, the target pot temperature is maintained at a constant 190℃ for a preset duration, and then a stage end signal is output, transitioning to the final stage.

[0081] When the real-time temperature of the cookware reaches the third temperature range (T≥200℃), the cooking process is considered to be entering the final stage. In this stage, the control logic switches to cooling mode, lowering the target pot temperature from the current value to 150℃. At the same time, the active temperature control intervention in the stir-fry mode is terminated, including but not limited to stopping the power output of the heating element, executing the turn-off command, or switching to low-power heat preservation / residual heat utilization mode, to prevent the pot temperature from rising too high and ensure that the temperature drops smoothly in the final stage.

[0082] When the cooking mode is frying, if the real-time temperature of the pot is detected to be in the first temperature range (T<150℃), the cooking is determined to be in the initial stage. At this time, a uniform heating strategy is executed to control the heating power so that the target pot temperature rises evenly to 170℃ to prevent local overheating. When this temperature is reached, a stage switching command is triggered to enter the intermediate stage.

[0083] When the real-time temperature of the cookware is within the second temperature range (180℃>T≥150℃), the cooking is determined to be in the intermediate stage. In this stage, the target pot temperature is maintained at a constant 170℃ for a preset duration, and then a stage end signal is output, transitioning to the final stage.

[0084] When the real-time temperature of the cookware reaches the third temperature range (T≥180℃), the cooking process is considered to be entering the final stage. In this stage, the control logic switches to cooling mode, lowering the target pot temperature from the current value to 120℃. This effectively prevents the oil temperature from rising excessively due to residual heat accumulation when cooking is finished, thereby reducing the generation of oil fumes and improving cooking safety and the taste of the dishes.

[0085] When the cooking mode is steaming or boiling, if the real-time temperature of the pot is detected to be within the first temperature range (T<90℃), the cooking is determined to be in the initial stage. At this time, a large-area heating strategy is implemented, controlling the heating power to make the medium inside the pot boil rapidly, accelerating the generation of steam, and continuing for a preset time before entering the intermediate stage.

[0086] When the real-time temperature of the cookware is within the second temperature range (100℃>T≥90℃), the cooking process is determined to be in the intermediate stage. During this stage, the medium inside the cookware is maintained at a near-boiling state to prevent it from overflowing due to violent boiling, while also reducing ineffective power loss and achieving energy-saving effects. After a preset duration, a stage end signal is output, and the process transitions to the final stage.

[0087] When the real-time temperature of the cookware reaches the third temperature range (T≥100℃), the cooking process is considered to be in its final stage. In this stage, the control logic switches to the heat preservation mode to achieve constant temperature operation and reduce energy consumption.

[0088] By dividing the cooking process into initial, intermediate, and final stages based on progressively increasing temperature ranges (first, second, and third) for stir-frying, frying, and steaming / boiling modes, the system accurately identifies the current cooking stage through real-time pot temperature. It adapts to the temperature changes of ingredients under different cooking modes, automatically distinguishing cooking stages. No complex image recognition or ingredient weight detection sensors are needed; stage determination relies solely on pot temperature, reducing hardware costs. This facilitates the subsequent matching of differentiated heating control strategies based on different cooking stages, ensuring heat control aligns with the cooking needs of ingredients at each stage, improving cooking results, and enhancing the versatility of the cooking control solution.

[0089] Optionally, the flame cap structure has an inner ring of flame holes, a uniform flame hole, and an outer ring of flame holes. The uniform flame hole comprises multiple concentric rings of flame holes; the outer ring of flame holes surrounds the uniform flame hole, and the uniform flame hole surrounds the inner ring of flame holes. Three flame types are included: a first flame type, a second flame type, and a third flame type. In the first flame type, the inner ring of flame holes burns; in the second flame type, both the inner and outer rings of flame holes burn simultaneously; and in the third flame type, both the inner ring of flame holes and the uniform flame hole burn simultaneously.

[0090] Step S250 above, determining the target flame type of the corresponding preset gas stove based on the cooking mode and the current cooking stage, may include at least one of the following: S2501. When the cooking mode is stir-fry mode or frying mode and the current stage is the initial stage, the target flame type of the gas stove is determined to be the second flame type. S2502. When the cooking mode is stir-fry mode or frying mode and is currently in the middle stage, the target flame type of the gas stove is determined to be the second flame type. The initial stage of stir-frying and deep-frying requires rapidly increasing the overall temperature of the cookware; the middle stage requires maintaining a high temperature to ensure the intense heat of stir-frying and that the food being fried is fully heated.

[0091] The second flame type uses simultaneous combustion of the inner and outer ring flame holes, eliminating the need for the uniform flame holes for gas supply. The outer ring flame holes provide a high-intensity flame to the outer edge of the pot, working in conjunction with the inner ring flame holes to heat the center of the pot bottom, forming a large-scale, high-heat-flux-density ring-shaped high-temperature flame. This results in rapid heating of the pot bottom, meeting the high-temperature, high-heat requirements for stir-frying. In frying conditions, the large-scale flame allows the oil surface in the pot to quickly reach the working oil temperature, preventing insufficient local oil temperature that could lead to excessive oil absorption by the food, thus improving the cooking effect.

[0092] S2503. When the cooking mode is stir-fry mode or frying mode and the current stage is the end stage, determine the target flame type of the gas stove as the first flame type. As stir-frying and deep-frying enter the final stages of cooking, the ingredients are mostly cooked and no longer require sustained high heat. At this point, switching to the first flame type, where only the inner ring burners are lit, significantly reduces the heat load on the stove. This prevents the food from burning or overcooking due to continuous high temperatures; on the other hand, the low flame maintains the base temperature, avoiding a sudden drop in the pot's temperature, while also reducing gas consumption and achieving stable heat and temperature control at the end of cooking.

[0093] S2504. When the cooking mode is steaming or boiling and the current stage is in the initial phase, the target flame type of the gas stove is determined to be the third flame type. The initial goal of the steaming / cooking mode is to quickly heat the water to a boil. The third flame type uses an inner ring flame hole plus concentric multi-ring flame holes for combustion. The multiple concentric flame holes can evenly cover most of the bottom of the pot with heat. Compared with the simple inner and outer ring flame type, the heat distribution is smoother, which can accelerate the overall heating of the water and shorten the boiling time of cold water; at the same time, it will not produce local extreme high temperature and avoid the risk of local dry burning of the bottom of the pot.

[0094] S2505. When the cooking mode is steaming or boiling and the current stage is in the middle, the target flame type of the gas stove is determined to be the first flame type. S2506. When the cooking mode is steaming or boiling and the cooking process is in its final stage, the target flame type of the gas stove is determined to be the first flame type. During the middle stage of steaming or boiling, the water has already boiled. Continuing to use high heat will cause violent rolling and a large amount of water vapor to escape quickly, which can easily lead to the food being overcooked or the soup drying out. At the end of the cooking process, it is only necessary to maintain a gentle boil to ensure that the food is thoroughly cooked.

[0095] It adopts the first flame type (only the inner ring flame holes burn), which maintains a slight boiling state in the pot with a small heat load, stabilizes the cooking environment, saves gas, and can effectively prevent the soup from boiling over violently, thus improving the stability of cooking.

[0096] S2507. When the cooking mode is slow cooking mode, the target flame type of the gas stove is determined to be the third flame type.

[0097] The slow-cooking process requires long-term, even, low-temperature heating, relying on continuous, gentle heat to moisten the ingredients. It requires even heating of the bottom of the pot to avoid localized high-temperature cooking that could cause the bottom to burn.

[0098] The third type of flame relies on concentric multi-ring flame holes combined with inner ring flame holes to ensure that the flame is evenly distributed radially along the bottom of the pot. The heat flow is gentle and covers a wide area, eliminating localized overheating zones. During long-term simmering, the broth inside the pot is heated evenly, and the heat slowly penetrates into the ingredients. This achieves thorough simmering while effectively preventing the ingredients from sticking together and burning at the bottom of the pot, meeting the requirements of slow simmering with long-term, even heating.

[0099] By tailoring three flame patterns to different cooking modes—stir-frying, deep-frying, steaming, and slow-cooking—and utilizing zoned burner holes, the system achieves differentiated flame shapes. Instead of simply adjusting gas flow to change heat intensity, it modifies the flame distribution and heating range by altering the combination of burner holes involved in combustion. This balances heating speed and temperature uniformity, matching the thermal requirements of different cooking processes, improving cooking results while reducing ineffective gas combustion and optimizing stove thermal efficiency.

[0100] Optional, Figure 5This is a flowchart illustrating another control method for an adjustable flame type gas stove provided by the present invention. Based on the above embodiments, this embodiment supplements the above embodiments. Specifically, after determining the corresponding preset target flame type of the gas stove according to the cooking mode and the current cooking stage, before controlling the gas stove to operate according to the target flame type, the method further includes: Determine the target temperature of the corresponding preset cookware based on the cooking mode and the current cooking stage; Calculate the real-time temperature deviation based on the cookware's real-time temperature and the target temperature; The real-time target firepower of the gas stove is determined based on the real-time temperature deviation. Control the gas stove to operate according to the target flame type and real-time target firepower.

[0101] For parts not described in detail in this embodiment, please refer to the foregoing embodiments, such as... Figure 5 As shown, the control method provided in this embodiment includes: S310, Obtain cooking mode.

[0102] S320: Obtain the real-time temperature of the cookware.

[0103] S330: Determine the current cooking stage based on the cooking mode and the real-time temperature of the cookware.

[0104] S340. Determine the target flame type of the corresponding preset gas stove according to the cooking mode and the current cooking stage.

[0105] S350: Determine the target temperature of the corresponding preset cookware based on the cooking mode and the current cooking stage.

[0106] The target flame pattern does not have built-in temperature constraints that match the heating termination. Therefore, it is necessary to set a clear target temperature as a critical benchmark for the control center to judge whether the real-time temperature meets the standard, adjust the firepower, or switch flame patterns. This provides a clear direction and reference for heat regulation and avoids the inability to accurately control the heating process due to the lack of a temperature control benchmark when only the flame pattern is configured.

[0107] Specifically, the cooking mode determines the overall fire strategy, and the preset temperature range corresponding to each cooking stage serves as the boundary for identifying and switching between cooking stages. This temperature range is only the allowable temperature fluctuation range, not a precise control target. A unique target temperature needs to be determined within the temperature range as the benchmark for closed-loop adjustment by the control center. The control center first determines the target flame type based on the current cooking mode and cooking stage, and then combines it with the target temperature of the corresponding stage to achieve closed-loop control of the firepower.

[0108] For example, the stir-fry mode is divided into multiple stages. In the initial stage, the target temperature is set to 180°C, and the pot is controlled to heat up quickly to lock in the moisture of the ingredients. When the temperature reaches the target value, it switches to the middle stage and maintains a high temperature of 190°C to achieve high-heat stir-frying. After a preset time, it enters the final stage, where the target temperature is lowered to 150°C, and the heat is stored to continue cooking while preventing the ingredients from burning.

[0109] In frying mode, the initial target temperature is set to 170℃ to control the pot to heat up evenly and avoid local overheating. After the target temperature is reached, the middle stage is entered, and the temperature is kept constant at 170℃ to stabilize the oil temperature and ensure that the food is fried evenly. After the preset time is completed, the final stage is entered, and the target temperature is reduced to 120℃ to suppress the production of oil fumes at high temperatures and prevent the food from charring and spoiling.

[0110] S360. Calculate the real-time temperature deviation based on the cookware's real-time temperature and the target temperature.

[0111] The target temperature defines the temperature the control center wants the cookware to reach, while the real-time temperature reflects the cookware's current actual temperature. The difference between the two is the real-time error, and its sign and magnitude directly represent the degree of deviation between the current heat supply and the actual heat demand. A positive error indicates that the real-time temperature is lower than the target temperature, meaning the current heat supply is insufficient and needs to be increased; a negative error indicates that the real-time temperature is higher than the target temperature, meaning the current heat supply is excessive and needs to be reduced; a zero error indicates that the heat supply and heat demand are balanced and no adjustment is needed.

[0112] Therefore, real-time error is the core link in transforming the two independent physical quantities of target temperature and real-time temperature into calculable control variables. Only when the control center obtains the quantitative indicator of real-time error can it accurately calculate the required firepower adjustment based on the sign and magnitude of the error, so that the control logic has a quantitative adjustment basis and realizes a closed-loop temperature control process from error identification to error elimination.

[0113] S370. Determine the real-time target firepower of the gas stove based on the real-time temperature deviation.

[0114] Real-time temperature error only indicates the direction and degree of deviation between the current temperature and the target temperature. It does not directly tell the actuator how much heat to adjust. It is necessary to transform this abstract value of error into a physical command that the actuator can recognize and execute, that is, to determine the specific heat output value, so that the control decision can transition from the perception of deviation to the execution action, and thus affect the cooking process.

[0115] Specifically, the control center determines the direction of firepower adjustment based on the sign of the error. When the error is positive, the firepower needs to be increased to compensate for the heat gap; when the error is negative, the firepower needs to be reduced to prevent the temperature from continuing to rise; when the error is zero, the current firepower remains unchanged.

[0116] S380, Control the gas stove to operate according to the target flame pattern.

[0117] The heat level determines the total heat output, while the flame pattern determines the heat distribution at the bottom of the pot and the heat input response characteristics. Both work together in the cooking process. Adjusting the heat level alone or simply switching the flame pattern has obvious drawbacks. Controlling the heat level alone can result in sufficient total heat but a mismatch between the heat distribution and the cooking conditions; switching the flame pattern alone can result in a reasonable heat distribution but insufficient or excessive total heat supply.

[0118] This invention integrates firepower adjustment and flame pattern switching for coordinated control. When temperature deviation is large, the total firepower is increased to quickly eliminate the temperature difference; when temperature deviation is small, the firepower is adjusted smoothly to avoid temperature overshoot. Under conditions of rapid temperature changes, the flame pattern is switched synchronously to match the instantaneous heat distribution requirements, while simultaneously ensuring sufficient total heat supply and reasonable heat distribution at the bottom of the pot. This overcomes the shortcomings of low heating efficiency and uneven heating caused by single-dimensional control. Through the coordinated control of firepower and flame pattern, this invention allows the gas stove's heat output to adapt to different cooking conditions in terms of both total amount and distribution, achieving more precise and efficient intelligent fire control.

[0119] Optional, Figure 6 This is a flowchart illustrating another control method for an adjustable flame type gas stove provided by the present invention. This embodiment is a refinement of the above embodiment. Specifically, step S370, determining the real-time target flame of the gas stove based on the real-time temperature deviation, can be refined as follows: According to the formula for calculating flow regulation Calculate the flow regulation amount ;in, For real-time temperature deviation, This is the proportionality coefficient. The integral coefficient is... These are the differential coefficients; Adjust the flow rate The preset flow range determines the corresponding preset real-time target firepower.

[0120] For parts not described in detail in this embodiment, please refer to the foregoing embodiments, such as... Figure 6 As shown, the control method provided in this embodiment includes: S410, Obtain cooking mode.

[0121] S420: Obtain the real-time temperature of the cookware.

[0122] S430: Determine the current cooking stage based on the cooking mode and the real-time temperature of the cookware.

[0123] S440. Determine the target flame type of the corresponding preset gas stove according to the cooking mode and the current cooking stage.

[0124] S450: Determine the target temperature of the corresponding preset cookware based on the cooking mode and the current cooking stage.

[0125] S460. Calculate the real-time temperature deviation based on the real-time temperature of the cookware and the target temperature.

[0126] S470, Calculation formula based on flow regulation Calculate the flow regulation amount ;in, For real-time temperature deviation, This is the proportionality coefficient. The integral coefficient is... These are the differential coefficients; The above formula comprehensively quantifies the instantaneous state, cumulative trend, and rate of change of the current and historical temperature deviations into a single numerical regulation variable, namely, the flow regulation amount. ,Should As an input parameter for subsequent firepower level decisions, it characterizes the direction and magnitude of the gas flow adjustment required to eliminate the current temperature deviation. The flow adjustment amount is then obtained. After completing the corresponding decision output for the firepower level, the real-time temperature of the cookware is collected again, and the real-time temperature of the cookware is compared with the preset target temperature. If it is determined that the temperature of the cookware has not yet reached the set temperature requirement, the corresponding step of temperature deviation calculation is returned, and the above real-time temperature deviation calculation, flow rate adjustment solution and firepower decision process are executed in a loop to continuously adjust the gas firepower in a closed loop until the real-time temperature of the cookware meets the set temperature requirement.

[0127] It should be noted that although the above embodiments are illustrated using an incremental PID algorithm, the control logic of the present invention is not limited thereto. In practical engineering applications, a fuzzy PID control strategy can also be used to replace the aforementioned incremental PID to achieve adaptive parameter tuning.

[0128] S480, Adjust amount according to flow rate The preset flow range determines the corresponding preset real-time target firepower.

[0129] Specifically, multiple preset flow ranges are set in advance, and each preset flow range is adjusted according to the flow rate. The numerical ranges are pre-divided into ranges, and each preset flow range has a corresponding real-time target firepower. These preset flow ranges and their corresponding real-time target firepower can be stored in the control center as a mapping table. The control center obtains the flow adjustment amount at time k. Next, adjust the flow rate. Match and judge with each preset flow range to identify the flow adjustment amount. The target preset flow range is assigned, and the real-time target firepower pre-bound to that target preset flow range is read as the real-time target firepower of the combustion equipment at the current moment.

[0130] S490, Control the gas stove to operate according to the target flame pattern.

[0131] Specifically, in this embodiment of the invention, multiple preset flow ranges are predefined, and each preset flow range is adjusted based on the flow rate. The numerical values ​​are pre-defined continuous ranges, and each preset flow range uniquely corresponds to a set of preset real-time target firepower. The mapping relationship between each preset flow range and the corresponding real-time target firepower can be constructed as a firepower matching mapping table, which is pre-stored in the control center of the stove to provide data support for real-time firepower adjustment.

[0132] During the operation of the stove, the control center collects the flow regulation amount at time k in real time. and adjust the real-time flow rate. The current flow rate is determined by comparing it with each of the pre-stored preset flow ranges. The target preset flow range is determined, and then the real-time target firepower bound to that target preset flow range is retrieved and used as the standard control firepower of the combustion equipment at the current moment to achieve precise matching of the firepower level.

[0133] As an exemplary specific embodiment of the present invention, the above step S480, based on the flow rate adjustment amount... The preset flow range determines the corresponding preset real-time target firepower, which can be further refined as follows: S4801, in When the firepower of the real-time target is greater than 80%, the firepower level is determined to be the first level. S4802, within 30% ≤ If the firepower of the real-time target is ≤80%, the target firepower is determined to be at the second firepower level. S4803, in If the firepower of the real-time target is ≤30%, the target's firepower is determined to be at the third firepower level. The firepower of the first, second, and third firepower levels decreases sequentially.

[0134] It should be noted that the flow rate regulation amount in this application All values ​​are absolute values, used to quantify the overall deviation between the real-time temperature of the cookware and the preset target temperature range of the current cooking stage. The larger the temperature deviation, the greater the heat compensation required for the cooking condition.

[0135] Specifically, adjust the amount based on the flow rate. The system divides the range to match different firepower levels, and can adjust the corresponding level of adjustment according to the magnitude of temperature deviation. When the temperature exceeds 80%, the highest heat setting is used to achieve rapid heat compensation under large deviations and accelerate temperature convergence towards the target range; when the temperature is ≤30%, the highest heat setting is used to achieve rapid heat compensation under large deviations and accelerate temperature convergence towards the target range. When the temperature is ≤80%, use the second power setting to control the temperature smoothly with moderate adjustment, reduce the rate of temperature change, and suppress temperature overshoot. When the temperature is ≤30°C, the third power setting is used to maintain thermal balance by providing a small amount of heat, reducing temperature fluctuations. This tiered power setting strategy avoids continuous, small adjustments to the power, reduces frequent reciprocating movements of the gas valve assembly, stabilizes the combustion conditions of the gas stove, and balances temperature control response speed and steady-state temperature control accuracy, ensuring that the cookware temperature is maintained stably within the preset temperature range for the current cooking stage.

[0136] This invention configures a specific target heat pattern for different cooking stages, forming a standardized and refined intelligent cooking mode through multi-stage differentiated heat pattern matching. During the cooking process, the system continuously and dynamically adjusts the output heat and heat pattern based on the difference between the real-time temperature of the cookware and the preset target temperature range for each cooking stage, ensuring that the cookware temperature always precisely matches the optimal heat conditions for each cooking stage. Compared to traditional fixed-heat cooking methods, this solution effectively avoids the problem of localized overheating and scorching during high-temperature stir-frying and frying, as well as the problem of uneven cooking and poor taste caused by insufficient heat supply during slow stewing and steaming. It can continuously and stably maintain the appropriate temperature range for each cooking stage, optimize the uniformity of food heating, improve the overall cooking quality, further reduce ineffective heat loss, improve gas energy utilization, and achieve energy-efficient and intelligent cooking.

[0137] Figure 7 This is a schematic diagram of the structure of a control device for an adjustable flame gas stove provided in an embodiment of the present invention. The device is applicable to situations where cooking is carried out using a gas stove. The device can be implemented by software and / or hardware and is generally integrated into the gas stove.

[0138] like Figure 7 As shown, the control device includes: The mode acquisition module 71 is used to acquire the cooking mode; Temperature acquisition module 72 is used to acquire the real-time temperature of the cookware; The stage determination module 73 is used to determine the current cooking stage based on the cooking mode and the real-time temperature of the cookware. The flame pattern determination module 74 is used to determine the target flame pattern of the corresponding preset gas stove according to the cooking mode and the current cooking stage; The execution module 75 is used to control the gas stove to work according to the target flame pattern.

[0139] This embodiment provides a control method for an adjustable flame gas stove. A mode acquisition module acquires the cooking mode, and the gas stove can match the appropriate flame type based on the heat demand characteristics corresponding to different cooking modes. This overcomes the insufficient control precision caused by traditional stoves using a uniform flame type for different cooking modes, improving the adaptability and operational rationality of combustion conditions. A temperature acquisition module acquires the real-time temperature of the cookware, continuously sensing the heat supply and demand status of the cookware and dynamically switching the flame type based on temperature change trends. This ensures that the flame shape continuously adapts to the actual heating needs of the cookware, solving the problem of poor heating effect caused by temperature fluctuations and changes in operating conditions when using a fixed flame type. A stage judgment module identifies the current cooking stage, locates the cooking stage timing node, and determines the appropriate flame type based on the flame pattern. The positioning module determines the corresponding preset target flame pattern of the gas stove based on the cooking mode and cooking stage. It can automatically switch the control target and regulation strategy at different cooking stages, allowing the flame pattern configuration to be adjusted in an orderly manner with the cooking process, avoiding the defects of insufficient heating in the early stage and excessive heating in the later stage caused by a single control mode throughout the entire process. The execution module analyzes and outputs the flame pattern, transforms multi-level decision information into executable quantitative instructions, and transforms the judgment results of the control system into burner adjustment actions, constructing a complete control closed loop of strategy judgment, instruction generation and execution drive. It can autonomously adjust the flame pattern configuration based on the cooking mode, real-time temperature of the cookware and cooking stage, optimize the cooking effect, achieve precise and automated control of cooking temperature, and improve the user's use and cooking experience.

[0140] In one embodiment, the stage determination module 73 may specifically include: Temperature range determination unit, used to determine the preset temperature range for each cooking stage corresponding to the cooking mode; The stage determination unit is used to determine the current cooking stage based on the real-time temperature of the cookware and the preset temperature range of each cooking stage corresponding to the cooking mode.

[0141] In one embodiment, the cooking modes include stir-frying, deep-frying, steaming, and slow-cooking. Based on this, the stage determination unit can specifically be used for: When the cooking mode is stir-fry mode, deep-fry mode, or steaming mode, the current cooking stage is determined based on the preset temperature range corresponding to each cooking stage of the stir-fry mode, deep-fry mode, and steaming mode. When the cooking mode is slow cook mode, the current cooking stage is determined to be any cooking stage.

[0142] In one embodiment, the cooking stage includes an initial stage, an intermediate stage, and a final stage. Based on this, the stage determination unit can also be specifically used for: When the cooking mode is stir-fry, deep-fry, or steaming / boiling, the current cooking stage is determined based on the preset temperature ranges for each cooking stage corresponding to these modes, including: When the real-time temperature of the cookware is within the first temperature range, it is determined that the current stage is in the initial stage. When the real-time temperature of the cookware is in the second temperature range, it is determined that the current stage is in the middle stage; When the real-time temperature of the cookware is in the third temperature range, it is determined that the current stage is the final stage. The first temperature range, the second temperature range, and the third temperature range increase sequentially.

[0143] In one embodiment, the flame cap structure has an inner ring of flame holes, a uniform flame hole, and an outer ring of flame holes. The uniform flame hole comprises multiple concentric rings of flame holes. The outer ring of flame holes surrounds the uniform flame hole, and the uniform flame hole surrounds the inner ring of flame holes. Three flame types are included: a first flame type, a second flame type, and a third flame type. In the first flame type, the inner ring of flame holes burns; in the second flame type, both the inner and outer rings of flame holes burn simultaneously; and in the third flame type, both the inner ring of flame holes and the uniform flame hole burn simultaneously.

[0144] Based on this, the fire pattern determination module 74 can also be used to perform at least one of the following: When the cooking mode is stir-frying or deep-frying and the cooking is in the initial stage, the target flame type of the gas stove is determined to be the second flame type. When the cooking mode is stir-frying or deep-frying and is currently in the middle stage, the target flame type of the gas stove is determined to be the second flame type. When the cooking mode is stir-frying or deep-frying and the cooking process is in its final stage, the target flame type of the gas stove is determined to be the first flame type. When the cooking mode is steaming or boiling and the process is in the initial stage, the target flame type of the gas stove is determined to be the third flame type. When the cooking mode is steaming or boiling and the cooking process is currently in the middle stage, the target flame type of the gas stove is determined to be the first flame type. When the cooking mode is steaming or boiling and the cooking process is in its final stage, the target flame type of the gas stove is determined to be the first flame type. When the cooking mode is slow cooking, the target flame type of the gas stove is set to the third flame type.

[0145] In one embodiment, the control device further includes: The target temperature determination module is used to determine the target temperature of the corresponding preset cookware based on the cooking mode and the current cooking stage. The temperature deviation calculation module is used to calculate the real-time temperature deviation based on the real-time temperature of the cookware and the target temperature. The target firepower determination module is used to determine the real-time target firepower of the gas stove based on the real-time temperature deviation. Therefore, the execution module 75 is also used to control the gas stove to work according to the target flame type and real-time target firepower.

[0146] In one embodiment, the target fire determination module may further include: The regulation calculation unit is used to calculate the flow regulation Δu(k) according to the flow regulation calculation formula Δu(k)=Kp×[e(k)-e(k-1)]+Ki×e(k)+Kd×[e(k)-2e(k-1)+e(k-2)]; where e(k) is the real-time temperature deviation, Kp is the proportional coefficient, Ki is the integral coefficient, and Kd is the derivative coefficient; The target fire determination unit is used to determine the corresponding preset real-time target fire based on the preset flow range in which the flow adjustment amount Δu(k) is located.

[0147] In one embodiment, the target fire determination unit is further configured to: When Δu(k) > 80%, the real-time target firepower is determined to be at the first firepower level; When 30%≤Δu(k)≤80%, the real-time target firepower is determined to be at the second firepower level; When Δu(k)≤30%, the real-time target firepower is determined to be at the third firepower level. The firepower of the first, second, and third firepower levels decreases sequentially.

[0148] The above-mentioned control device can execute the control method of the adjustable flame gas stove provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the method.

[0149] Figure 8 This is a structural schematic diagram of a gas stove with an adjustable flame pattern, provided as an embodiment of the present invention. Figure 8 As shown, the gas stove provided in this embodiment of the invention includes: one or more processors 81 and a storage device 82; the processor 81 in the gas stove may be one or more, Figure 8 Taking a processor 81 as an example; storage device 82 is used to store one or more programs; the one or more programs are executed by the one or more processors 81, so that the one or more processors 81 implement a control method for an adjustable flame gas stove as described in any one of the embodiments of the present invention.

[0150] The gas stove may also include an input device 83 and an output device 84.

[0151] The processor 81, storage device 82, input device 83, and output device 84 in the gas stove can be connected via a bus or other means. Figure 8 Taking the example of a connection between China and Israel via a bus.

[0152] The storage device 82 in this gas stove serves as a computer-readable storage medium, capable of storing one or more programs. These programs can be software programs, computer-executable programs, or modules, such as the program instructions / modules corresponding to the control method for an adjustable flame gas stove provided in this embodiment of the invention (e.g., attached). Figure 7 The control device for an adjustable flame gas stove, as shown, includes the following modules: a mode acquisition module 71 for acquiring a cooking mode; a temperature acquisition module 72 for acquiring the real-time temperature of the cookware; a stage determination module 73 for determining the current cooking stage based on the cooking mode and the real-time temperature of the cookware; a flame type determination module 74 for determining the corresponding preset target flame type of the gas stove based on the cooking mode and the current cooking stage; and an execution module 75 for controlling the gas stove to operate according to the target flame type. The processor 81 executes various functional applications and data processing of the gas stove by running software programs, instructions, and modules stored in the storage device 82, thereby implementing the control method for the adjustable flame gas stove in the above-described method embodiment.

[0153] Storage device 82 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the gas stove. Furthermore, storage device 82 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, storage device 82 may further include memory remotely located relative to processor 81, which can be connected to the gas stove via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0154] Input device 83 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the gas stove. Output device 84 may include display devices such as a display screen.

[0155] Furthermore, when one or more programs included in the aforementioned gas stove are executed by one or more processors 81, the programs perform the following operations: Get the cooking mode; Obtain the real-time temperature of the cookware; Determine the current cooking stage based on the cooking mode and the real-time temperature of the cookware; Determine the target flame type of the corresponding preset gas stove based on the cooking mode and the current cooking stage; Control the gas stove to operate according to the target flame pattern.

[0156] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A control method for a gas stove with adjustable flame pattern, characterized in that, The gas stove includes a burner cap structure, which has three flame patterns; the three flame patterns use flame holes at different internal and external positions for combustion. The control method includes: Get the cooking mode; Obtain the real-time temperature of the cookware; The current cooking stage is determined based on the cooking mode and the real-time temperature of the cookware. Based on the cooking mode and the current cooking stage, determine the target flame type of the corresponding preset gas stove. The gas stove is controlled to operate according to the target flame pattern.

2. The control method according to claim 1, characterized in that, Based on the cooking mode and the real-time temperature of the cookware, determine the current cooking stage, including: Determine the preset temperature range for each cooking stage corresponding to the cooking mode; The current cooking stage is determined based on the real-time temperature of the cookware and the preset temperature range of each cooking stage corresponding to the cooking mode.

3. The control method according to claim 2, characterized in that, The cooking modes include stir-fry mode, deep-fry mode, steaming mode, and slow-cooking mode; Based on the real-time temperature of the cookware and the preset temperature ranges for each cooking stage corresponding to the cooking mode, the current cooking stage is determined, including: When the cooking mode is stir-fry mode, frying mode, or steaming mode, the current cooking stage is determined according to the preset temperature range of each cooking stage corresponding to the stir-fry mode, frying mode, and steaming mode respectively. When the cooking mode is slow cooking mode, the current cooking stage is determined to be any cooking stage.

4. The control method according to claim 3, characterized in that, The cooking process includes an initial stage, an intermediate stage, and a final stage. When the cooking mode is stir-fry mode, frying mode, or steaming mode, the current cooking stage is determined based on the preset temperature ranges corresponding to each cooking stage of the stir-fry mode, frying mode, and steaming mode, including: When the real-time temperature of the cookware is within the first temperature range, it is determined that the current stage is in the initial stage. When the real-time temperature of the cookware is in the second temperature range, it is determined that the current stage is in the middle stage. When the real-time temperature of the cookware is in the third temperature range, it is determined that the current stage is the final stage. The first temperature range, the second temperature range, and the third temperature range increase sequentially.

5. The control method according to claim 3, characterized in that, The flame cap structure has an inner ring flame hole, a uniform flame hole, and an outer ring flame hole. The uniform flame hole includes multiple concentric rings of flame holes. The outer ring flame hole surrounds the uniform flame hole, and the uniform flame hole surrounds the inner ring flame hole. The three fire types include a first fire type, a second fire type, and a third fire type; wherein, the first fire type is combustion of the inner ring fire holes; the second fire type is combustion of the inner ring fire holes and the outer ring fire holes simultaneously; and the third fire type is combustion of the inner ring fire holes and the uniform fire holes simultaneously. Based on the cooking mode and the current cooking stage, determine the target flame type of the corresponding preset gas stove, including at least one of the following: When the cooking mode is the stir-fry mode or the deep-fry mode and is currently in the initial stage, the target flame type of the gas stove is determined to be the second flame type; When the cooking mode is the stir-fry mode or the deep-fry mode and is currently in the middle stage, the target flame type of the gas stove is determined to be the second flame type; When the cooking mode is the stir-fry mode or the frying mode and is currently in the final stage, the target flame type of the gas stove is determined to be the first flame type; When the cooking mode is the steaming mode and the current stage is in the initial stage, the target flame type of the gas stove is determined to be the third flame type; When the cooking mode is the steaming mode and it is currently in the middle stage, the target flame type of the gas stove is determined to be the first flame type; When the cooking mode is the steaming mode and the cooking is currently in the final stage, the target flame type of the gas stove is determined to be the first flame type; When the cooking mode is the slow cooking mode, the target flame type of the gas stove is determined to be the third flame type.

6. The control method according to claim 1, characterized in that, After determining the target flame pattern of the gas stove according to the cooking mode and the current cooking stage, before controlling the gas stove to operate according to the target flame pattern, the method further includes: Based on the cooking mode and the current cooking stage, determine the target temperature of the corresponding preset cookware; Calculate the real-time temperature deviation based on the real-time temperature and target temperature of the cookware; The real-time target firepower of the gas stove is determined based on the real-time temperature deviation. The gas stove is controlled to operate according to the target flame pattern and the real-time target firepower.

7. The control method according to claim 6, characterized in that, Determining the real-time target firepower of the gas stove based on the real-time temperature deviation includes: The flow regulation amount Δu(k) is calculated according to the formula Δu(k)=Kp×[e(k)-e(k-1)]+Ki×e(k)+Kd×[e(k)-2e(k-1)+e(k-2)]; where e(k) is the real-time temperature deviation, Kp is the proportional coefficient, Ki is the integral coefficient, and Kd is the derivative coefficient. Based on the preset flow range in which the flow adjustment amount Δu(k) is located, the corresponding preset real-time target firepower is determined.

8. The control method according to claim 7, characterized in that, Based on the preset flow range in which the flow adjustment amount Δu(k) is located, the corresponding preset real-time target firepower is determined, including: When Δu(k) > 80%, the real-time target firepower is determined to be at the first firepower level; If 30%≤Δu(k)≤80%, the real-time target firepower is determined to be at the second firepower level; If Δu(k) ≤ 30%, the real-time target firepower is determined to be at the third firepower level. The firepower of the first firepower setting, the second firepower setting, and the third firepower setting decreases sequentially.

9. A control device for a gas stove with adjustable flame pattern, characterized in that, The gas stove includes a burner cap structure, which has three flame patterns; the three flame patterns use flame holes at different internal and external positions for combustion. The control device includes: The mode acquisition module is used to acquire cooking modes; Temperature acquisition module, used to acquire the real-time temperature of the cookware; The stage determination module is used to determine the current cooking stage based on the cooking mode and the real-time temperature of the cookware. The flame pattern determination module is used to determine the target flame pattern of the gas stove corresponding to the preset cooking mode and the current cooking stage. The execution module is used to control the gas stove to work according to the target flame pattern.

10. A gas stove with adjustable flame pattern, characterized in that, include: One or more processors; Storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the control method for an adjustable flame gas stove as described in any one of claims 1-8.

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