Cooker and method for preventing dry boiling of a cooker

Abstract

The application discloses a stove and a stove dry burning prevention control device and method. The stove dry burning prevention control device comprises a detection module, a control module and a dry burning prevention module. The detection module is used for acquiring type detection data and dynamic detection data of a to-be-detected pot. The control module is connected with the detection module and the dry burning prevention module, respectively, and is used for identifying a cooking scene according to the type detection data and the dynamic detection data, and adjusting a working state and a protection temperature threshold of the dry burning prevention module according to the cooking scene. The application adjusts the dry burning prevention protection temperature threshold by identifying the type of the pot, improves the applicability of the dry burning prevention module to different pots, and avoids the false triggering of the dry burning prevention module. Meanwhile, the cooking scene is dynamically identified according to the type of the pot, and the working state of the dry burning prevention module is adjusted correspondingly, so that the dry burning prevention module can avoid the collision with the moving pot, the dry burning prevention protection in the continuous cooking process can be realized, and the safety hidden danger can be reduced.

Description

Technical Field

[0001] This invention relates to the field of gas stove control technology, and in particular to a stove and a stove anti-dry-burning control device and method. Background Technology

[0002] To ensure the personal and property safety of users, more and more gas stoves are equipped with anti-dry-burning function.

[0003] In existing technologies, anti-dry-burning gas stoves typically add a temperature sensing column in the center of the burner. This column senses the temperature of the pot bottom, and automatically cuts off the gas supply to the burner when the pot bottom temperature is too high. However, existing temperature protection strategies have the following problems: Different types of cookware are used during cooking, such as non-metallic or aluminum pots. For non-metallic cookware, during timed operation, the temperature sensor may detect a higher pot bottom temperature, easily triggering the stove's high-temperature protection and causing it to shut off prematurely, affecting the user experience. Furthermore, in scenarios such as stir-frying and tossing, the temperature sensor is prone to collisions and damage to the pot bottom. Summary of the Invention

[0004] This invention provides a stove anti-dry-burning control device that can automatically identify the type and dynamic characteristics of the cookware, and adjust the configuration scheme of the anti-dry-burning module according to different cooking scenarios, thereby reducing misjudgments and improving the applicability of the anti-dry-burning module to different cookware.

[0005] According to one aspect of the present invention, a stove anti-dry-burning control device is provided. The stove includes a pot rack, a drip tray, a burner, and an anti-dry-burning module. The pot rack is used to support the pot to be tested. The control device comprises:

[0006] The detection module is used to acquire type detection data and dynamic detection data of the cookware to be tested;

[0007] The control module is connected to the detection module and the anti-dry-burning module respectively. It is used to identify the cooking scenario based on the type detection data and dynamic detection data, and adjust the working status and protection temperature threshold of the anti-dry-burning module according to the cooking scenario.

[0008] Optionally, the cooktop anti-dry-burning control device also includes: a drive assembly for driving the anti-dry-burning module to move;

[0009] The control module is also configured to: determine the cookware type based on the type detection data, and when the cookware type is easily deformable cookware, control the drive component to drive the anti-dry-burning module to move in the direction toward the cookware to be tested until the anti-dry-burning module comes into contact with the bottom of the cookware to be tested; and / or, when the cookware type is non-easily deformable cookware, control the drive component to drive the anti-dry-burning module to move in the direction away from the cookware to be tested according to the cooking scenario.

[0010] Optionally, the driver components include:

[0011] The drive motor is connected to the control module and is used to receive drive control signals from the control module and perform forward or reverse rotation according to the drive control signals.

[0012] The transmission mechanism has a crank part and a connecting rod part. The crank part is connected to the drive motor. The first end of the connecting rod part is hinged to the crank part, and the second end of the connecting rod part is hinged to the anti-dry-burning module. The crank part rotates synchronously with the drive motor, and drives the anti-dry-burning module to move in the direction toward or away from the pot to be tested through the connecting rod part.

[0013] The control module is configured to: acquire the crank radius and connecting rod length of the transmission mechanism; determine the moving distance of the anti-dry-burning module based on type detection data and dynamic detection data; determine the crank angle based on the moving distance, crank radius, and connecting rod length; and send a drive control signal based on the crank angle. Optionally, the drive assembly also includes a fixing part, which is hinged to the second end of the connecting rod part, and the outer periphery of the fixing part forms a nested gap fit with the side wall of the hollow part of the burner head to lock and fix the anti-dry-burning module, so that the anti-dry-burning module can move in a direction toward or away from the pot to be tested. Optionally, the anti-dry-burning module includes: an anti-dry-burning probe and a support part;

[0014] The anti-dry-burning probe is installed in the hollow part of the burner head;

[0015] The support part is locked and fixed to the fixing part.

[0016] Optionally, the detection module includes: a recognition unit and an editable identification unit;

[0017] An editable identifier unit is set on the cookware to be tested and is used to store at least one of the cookware material, cookware shape or cookware type of the cookware to be tested, and the stored data is editable data;

[0018] The identification unit communicates with the control module, or it is integrated with the control module.

[0019] Optionally, the detection module is configured to: identify at least one of the following: real-time distance from the bottom of the cookware, pressure exerted on the cookware support, and acceleration of the cookware;

[0020] The control module is also configured to determine the movement and shape of the cookware based on at least one of the real-time distance from the bottom of the cookware, the pressure exerted on the cookware support, or the acceleration of the cookware.

[0021] Optionally, the stove anti-dry-burning control device may also include: a timer module and / or an interactive module;

[0022] The timing module is used to configure the timing duration;

[0023] The interaction module is used to obtain the working mode of the stove and display the corresponding data according to the working mode.

[0024] The operating modes include at least one of the following: timed mode, probe lifting and display mode, and anti-dry burning trigger mode.

[0025] According to another aspect of the present invention, a method for controlling dry burning of a cooktop is provided. The cooktop includes a pot rack, a drip tray, a burner, and an anti-dry burning module. The pot rack is used to support the cooktop to be tested. The control method includes:

[0026] Acquire type detection data and dynamic detection data of the cookware to be tested;

[0027] The system identifies cooking scenarios based on type detection data and dynamic detection data, and adjusts the working status and protection temperature threshold of the anti-dry burning module according to the cooking scenario.

[0028] According to another aspect of the present invention, a cooktop is provided, comprising: a cooktop anti-dry-burning control device according to any embodiment of the present invention.

[0029] This invention provides a cooktop anti-dry-burning control device. Through a detection module and a control module, it can identify the type and dynamics of the cookware, and adjust the anti-dry-burning protection temperature threshold according to the cookware type to avoid misjudgment by the anti-dry-burning module. Simultaneously, it identifies the cooking scenario based on the type and dynamics, and adjusts the working state of the anti-dry-burning module accordingly. This not only prevents moving cookware from colliding with the anti-dry-burning module but also achieves anti-dry-burning protection during continuous cooking. It solves the problem that existing anti-dry-burning modules are incompatible with different cookware, leading to false triggering of the anti-dry-burning protection or damage to the temperature sensing element due to collisions. This improves the applicability of the anti-dry-burning module to different cookware and reduces safety hazards.

[0030] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a structural schematic diagram of a stove with an anti-dry-burning control device provided in an embodiment of the present invention;

[0033] Figure 2This is an exploded view of a stove with an anti-dry-burning control device provided in an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of a stove anti-dry-burning control device provided in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of another stove anti-dry-burning control device provided in an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of a driving component provided in an embodiment of the present invention;

[0037] Figure 6 This is a perspective view of a driving component provided in an embodiment of the present invention;

[0038] Figure 7 This is an exploded view of the drive assembly and furnace head provided in an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the structure of the drive assembly and the furnace head installed together according to an embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the structure of another stove anti-dry-burning control device provided in an embodiment of the present invention;

[0041] Figure 10 This is a flowchart of a stove anti-dry-burning control method provided in an embodiment of the present invention;

[0042] Figure 11 This is a flowchart of another stove anti-dry-burning control method provided in an embodiment of the present invention.

[0043] Figure label:

[0044] 1. Pot support; 2. Water tray; 3. Burner; 4. Stove head; 5. Chassis; 6. Drive motor; 7. Crankshaft; 8. Connecting rod; 9. Fixing part; 10. Hollow part of stove head; 11. Anti-dry burning module; 13. Panel; 14. Timer encoder; 15. Timer encoder knob; 16. Valve body; 17. Detection module; 18. Control module; 19. Timer module; 20. Interaction module; 21. Display panel; 22. Power module; 23. Flameout protection module; 24. Flame detection module; 111. Anti-dry burning probe; 112. Support part; 200. Drive assembly. Detailed Implementation

[0045] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0046] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0047] This invention provides a stove anti-dry-burning device, applicable to gas stoves equipped with anti-dry-burning function, and compatible with different types of cookware. In this embodiment, cookware is classified by material, including but not limited to any of the following: non-metallic pots and metallic pots, wherein non-metallic pots include but are not limited to: earthenware pots, stone pots, ceramic pots, or glass pots; metallic pots include but are not limited to: aluminum pots, iron pots, or stainless steel pots; cookware is classified by shape, including but not limited to: flat-bottomed pots or round-bottomed pots; cookware is classified by function, including but not limited to: woks, steamers, or stew pots.

[0048] Figure 1 This is a structural schematic diagram of a stove with an anti-dry-burning control device provided in an embodiment of the present invention. Figure 2 This is an exploded view of a stove with an anti-dry-burning control device provided in an embodiment of the present invention. (Combined with...) Figure 1 and Figure 2 As shown, the stove includes a pot rack 1, a drip tray 2, a burner 3, and an anti-dry-burning module 11. The pot rack 1 supports the pot under test. When the stove is in operation, the pot is placed on top of the pot rack 1, with the lower surface of the pot abutting against the upper surface of the pot rack 1, and the pot rack 1 supports the pot. The pot rack 1 is placed on top of the drip tray 2, and the drip tray 2 supports the pot rack 1. The upper part of the burner head 4, the lower part of the drip tray 2, and the panel 13 are fixedly connected by fasteners. The burner 3 is positioned between the drip tray 2 and the upper part of the burner head 4, and the lower part of the burner head 4 is fixedly connected to the base 5 by fasteners. The anti-dry-burning module 11 is located in the hollow part 10 between the burner 3 and the burner head.

[0049] Figure 3 This is a schematic diagram of the structure of a stove anti-dry-burning control device provided in an embodiment of the present invention. See also... Figure 3 As shown, the control device of this application includes a detection module 17 and a control module 18.

[0050] The detection module 17 is used to acquire type detection data and dynamic detection data of the cookware under test. In this embodiment, the type detection data is the data fed back after performing cookware type detection on the cookware under test; the dynamic detection data is the data fed back after detecting the action status of the cookware under test.

[0051] The control module 18, connected to both the detection module 17 and the anti-dry-burn module 11, identifies cooking scenarios based on type detection data and dynamic detection data, and adjusts the operating state and protection temperature threshold of the anti-dry-burn module 11 according to the cooking scenario. Specifically, the control module 18 can determine the material and shape of the cookware based on its type data, and identify the cooking scenario based on the cookware's material, shape, and dynamic characteristics. Operating states include, but are not limited to: turning off the anti-dry-burn module 11, and maintaining the anti-dry-burn module 11 to perform temperature measurement on the bottom of the cookware under test. The protection temperature threshold is the temperature set based on the temperature measurement data from the anti-dry-burn module 11 to trigger the anti-dry-burn protection action (such as powering off). Optionally, cooking scenarios include, but are not limited to, any of the following: metal pot cooking, non-metal pot cooking scenario, or wok tossing scenario.

[0052] Specifically, when the stove is operating, the control module 18 can identify the material and shape of the cookware based on the type monitoring data. Since different cookware materials have different bottom temperatures during cooking, the control module 18 adjusts the anti-dry-burn protection temperature threshold according to the cookware material. For example, if the cookware is detected to be made of a non-metallic material, the bottom temperature will be higher during cooking due to its poor thermal conductivity, thus requiring an increased anti-dry-burn protection temperature threshold. Conversely, metal cookware has better thermal conductivity, resulting in a smaller temperature difference between the bottom and the food inside during cooking. If the cookware is detected to be made of metal, the anti-dry-burn protection temperature threshold needs to be lowered to prevent misjudgment by the anti-dry-burn module 11. Simultaneously, the control module 18 determines the shape of the cookware and whether it is moving based on the type monitoring data and dynamic detection data. If the cookware is in motion, the system determines that the user is moving the cookware, such as flipping or transferring it. In this case, the anti-dry-burning module 11 is deactivated to prevent the cookware from colliding with the anti-dry-burning module 11 and damaging it. If the control module 18 determines that the cookware is stationary, the anti-dry-burning module 11 will activate and press against the bottom of the cookware to detect the temperature of the bottom of the cookware and prevent dry burning.

[0053] This invention provides a cooktop anti-dry-burning control device. Through a detection module and a control module, it can identify the type and dynamics of the cookware, and adjust the anti-dry-burning protection temperature threshold according to the cookware type to avoid misjudgment by the anti-dry-burning module. Simultaneously, it identifies the cooking scenario based on the type and dynamics, and adjusts the working state of the anti-dry-burning module accordingly. This not only prevents moving cookware from colliding with the anti-dry-burning module but also achieves anti-dry-burning protection during continuous cooking. It solves the problem that existing anti-dry-burning modules are incompatible with different cookware, leading to false triggering of the anti-dry-burning protection or damage to the temperature sensing element due to collisions. This improves the applicability of the anti-dry-burning module to different cookware and reduces safety hazards.

[0054] Figure 4 This is a schematic diagram of another stove anti-dry-burning control device provided in an embodiment of the present invention. See also... Figure 4 As shown, the stove anti-dry-burning control device of the present invention also includes a drive assembly 200 for driving the anti-dry-burning module 11 to move.

[0055] The control module 18 is further configured to: determine the cookware type based on type detection data; and when the cookware type is easily deformable cookware, control the drive component 200 to drive the anti-dry-burn module 11 to move in a direction toward the cookware under test until the anti-dry-burn module 11 contacts the bottom of the cookware under test; and / or, when the cookware type is non-easily deformable cookware, control the drive component 200 to drive the anti-dry-burn module 11 to move in a direction away from the cookware under test according to the cooking scenario. In this embodiment, the drive component 200 is driveably connected to the anti-dry-burn module 11 to drive the anti-dry-burn module 11 to move in a direction toward or away from the bottom surface of the cookware under test. For example, when the drive assembly 200 drives the anti-dry-burning module 11 to move in the direction toward the bottom surface of the cookware to be tested, if the anti-dry-burning probe 111 of the anti-dry-burning module 11 comes into contact with the bottom surface of the cookware, the drive assembly 200 stops driving; when the drive assembly 200 drives the anti-dry-burning module 11 to move in the direction away from the bottom surface of the cookware to be tested, the drive assembly 200 may increase the distance between the anti-dry-burning probe 111 and the bottom surface of the cookware according to the calibration data, or drive the anti-dry-burning probe 111 to be hidden inside the burner 3.

[0056] Specifically, cookware made of certain materials is prone to deformation under sustained high temperatures, such as aluminum pots. When the control module 18 determines that the cookware under test is prone to deformation, the anti-dry-burning module 11 needs to contact the bottom of the cookware to detect whether the bottom temperature is too high and prevent the cookware from deforming. Non-deformable cookware is less likely to deform under high temperatures. When the cookware type is non-deformable, the drive component 200 drives the anti-dry-burning module 11 to move in a direction away from the bottom surface of the cookware under test to avoid collision between the anti-dry-burning module 11 and the cookware, which could damage the anti-dry-burning module 11 or the cookware. Furthermore, when the cookware is placed on the pot rack 1, the bottom height of different shaped cookware will vary. For example, the bottom of a flat-bottomed pan is higher than that of a round-bottomed pan. Therefore, the control module 18 needs to determine the bottom position based on the shape detection data and adjust the position of the anti-dry-burning module 11 to measure the bottom temperature.

[0057] For example, when the user is tossing the food, the position and angle of the pot are constantly changing, and the anti-dry-burning module 11 is likely to collide with the bottom of the pot. At the same time, since the user can directly observe the state of the pot when tossing the food, the anti-dry-burning module 11 does not need to be in working state. Therefore, the control drive component 200 drives the anti-dry-burning module 11 to move in a direction away from the pot to be tested, so as to avoid the anti-dry-burning module 11 from colliding with the bottom of the pot and causing damage to the anti-dry-burning module 11 or the pot.

[0058] Figure 5 This is a schematic diagram of the structure of a driving component provided in an embodiment of the present invention. Figure 6 This is an exploded view of a driving component provided in an embodiment of the present invention. See also... Figure 5 and Figure 6 As shown, the drive assembly 200 includes a drive motor 6 and a transmission mechanism. The drive motor 6 is connected to the control module 18 and is used to receive drive control signals issued by the control module 18 and perform forward or reverse rotation according to the drive control signals. The transmission mechanism has a crank part 7 and a connecting rod part 8. The crank part 7 is connected to the drive motor 6. The first end of the connecting rod part 8 is hinged to the crank part 7, and the second end of the connecting rod part 8 is hinged to the anti-dry-burning module 11. The crank part 7 rotates synchronously with the drive motor 6 and drives the anti-dry-burning module 11 to move in the direction toward or away from the pot to be tested via the connecting rod part 8. The control module 18 is configured to: acquire the crank radius and connecting rod length of the transmission mechanism, determine the moving distance of the anti-dry-burning module 11 according to the type detection data and dynamic detection data, determine the crank angle according to the moving distance, crank radius and connecting rod length, and issue a drive control signal according to the crank angle.

[0059] refer to Figure 5 and Figure 6As shown, when the drive motor 6 rotates forward or reverse, it drives the crank part 7 and the connecting rod part 8 to move, thereby achieving displacement of the anti-dry-burning probe 11 in the direction toward or away from the cookware (e.g., vertical direction). The formula for calculating the displacement of the anti-dry-burning probe 11 is:

[0060] x=R(1-cosα)+Rλ(1-cos2α) / 4

[0061] Where x represents the displacement of the probe, R is the crank radius, α is the crank angle, and λ is the ratio of the crank radius R to the connecting rod length L (R / L). The crank radius is the distance from the connection point between the crank part 7 and the drive motor 6 to the connection point between the crank part 7 and the connecting rod part 8. The control module 18 can determine the distance that the anti-dry burning module 11 needs to move based on the type detection data and dynamic detection data, and control the drive motor 6 according to the above formula to move the anti-dry burning module 11 to a specific position.

[0062] Optionally, the drive assembly 200 further includes a fixing part 9, which is hinged to the second end of the connecting rod part 8. The outer periphery of the fixing part 9 forms a nested gap fit with the side wall of the hollow part 10 of the burner head 3, for locking and fixing the anti-dry-burning module 11, so that the anti-dry-burning module 11 can move in a direction toward or away from the pot to be tested. In this embodiment, the fixing part 9 consists of two oppositely arranged cover plates, and the anti-dry-burning module 11 is fixed in the fixing hole formed by the engagement of the two cover plates.

[0063] Figure 7 This is an exploded view of the drive assembly and furnace head provided in an embodiment of the present invention. Figure 8 This is a schematic diagram illustrating the structural arrangement of the drive assembly and the furnace head provided in an embodiment of the present invention. (Combined with...) Figures 5 to 8 As shown, the fixing part 9 is hinged to the second end of the connecting rod part 8 and locked to fix the anti-dry-burning module 11, so that the anti-dry-burning module 11 can be moved upward or downward by the connecting rod part 8. The fixing part 9 includes a fixing hole and several fixing feet. The fixing hole is used to fix the anti-dry-burning module 11. The fixing feet are arranged radially on the outside of the fixing hole and form a nested gap fit with the side wall of the hollow part 10 of the burner head, thereby ensuring that the anti-dry-burning module 11 will not shift horizontally while moving up and down.

[0064] See Figures 5 to 8 As shown, the anti-dry-burning module 11 includes an anti-dry-burning probe 111 and a support part 112; the anti-dry-burning probe 111 is disposed in the hollow part 10 of the burner head of the burner 3; the support part 112 is locked and fixed to the fixing part 9. The anti-dry-burning probe 111 can be equipped with a temperature sensor and / or a thermistor, and the bottom temperature of the pot under test is detected by the contact between the anti-dry-burning probe 111 and the bottom surface of the pot.

[0065] Combination Figures 5 to 8As shown, the support portion 112 is locked and fixed to the fixing portion 9, so that the anti-dry-burning probe 111 is placed in the hollow portion 10 of the burner head. Specifically, the fixing portion 9 includes a fixing hole, the size of which is interference-fitted with the support portion 112, so that the support portion 112 is locked and fixed in the fixing portion 9.

[0066] Figure 9 This is a schematic diagram of another stove anti-dry-burning control device provided in an embodiment of the present invention, wherein the power module 22 supplies power to the control module 18 and the drive motor 6, and the control module 18 is connected to the detection module 17. The control module 18 receives data from the detection module 17, determines the movement and shape of the pot, and determines the cooking scenario based on the movement and shape of the pot.

[0067] Optionally, the detection module 17 includes an identification unit and an editable identification unit. The editable identification unit is disposed on the cookware under test and is used to store at least one of the following: cookware material, cookware shape, or cookware type. The stored data is editable. The identification unit is communicatively connected to the control module 18, or integrated with the control module 18. The editable identification unit includes a near-field radio frequency identification (NFC) tag, which can be disposed on the cookware handle, pot handle, or auxiliary lug. The identification unit includes a NFC reader, which can identify at least one of the following information: cookware material, cookware shape, or cookware type, based on the NFC tag.

[0068] Optionally, the detection module 17 is configured to: identify at least one of the following: the real-time distance from the bottom surface of the cookware, the pressure exerted on the cookware support, and the acceleration of the cookware;

[0069] The control module is also configured to determine the movement and shape of the cookware based on at least one of the real-time distance from the bottom of the cookware, the pressure exerted on the cookware support, or the acceleration of the cookware.

[0070] Optionally, the detection module 17 includes an ultrasonic sensor, which is used to detect the real-time distance between the bottom of the cookware and the transmitting end of the ultrasonic sensor. The ultrasonic sensors are evenly arranged within the inner axial range of the pot rack 1; preferably, three or four ultrasonic sensors can be used. Multiple ultrasonic sensors are evenly arranged on the surface of the drip tray 2 facing the cookware, and the projection of the ultrasonic sensors on the panel 13 falls within the inner circumferential range of the pot rack 1. The control module 18 is also used to determine the cookware's movement based on the real-time distance collected by the ultrasonic sensors, and to determine the cooking scenario based on the cookware's movement. Specifically, during the detection process, the ultrasonic sensor emits ultrasonic waves to identify the real-time distance from the bottom surface of the cookware supported by the pot rack 1. The control module 18 identifies the cookware's movement based on this real-time distance. For example, if the distance between the bottom surface of the cookware and the ultrasonic sensor continuously changes, it is determined that the cookware is moving; if the distance between the bottom surface of the cookware and the ultrasonic sensor remains unchanged for a long time, it is determined that the cookware is stationary.

[0071] Optionally, the detection module 17 includes a displacement sensor for detecting the displacement of the bottom of the cookware. The displacement sensor is located at the point where the foot of the pot support 1 abuts against the drip tray 2, and the number of displacement sensors is consistent with the number of foot pieces of the pot support 1. The control module 18 is also used to determine the cookware's movement based on the real-time displacement collected by the displacement sensor, and to determine the cooking scenario based on the cookware's movement. Specifically, during the detection process, the displacement sensor identifies the real-time displacement of the bottom surface of the cookware, and identifies the cookware's movement based on the real-time displacement of the bottom surface of the cookware. For example, if the bottom surface of the cookware under test continuously moves back and forth, it is determined that the user is tossing the pot.

[0072] Optionally, the detection module 17 includes strain force sensors, which are used to detect the pressure exerted on the cookware by the pot rack 1. The pressure exerted on the cookware by the strain force sensors can indirectly reflect the movement of the cookware. The strain force sensors are located at the contact points between the feet of the pot rack 1 and the drip tray 2, and the number of strain force sensors is consistent with the number of feet of the pot rack 1. The control module 18 is also used to determine the movement of the cookware based on the pressure data collected by the strain force sensors, and to determine the cooking scenario based on the movement of the cookware. Specifically, during the detection process, the strain force sensors detect the pressure exerted on the cookware by the pot rack 1, and identify the movement of the cookware based on changes in the pressure data. For example, if the pressure exerted on the strain force sensors is greater than the weight of the pot rack 1, and the pressure remains constant for a long time, it is determined that the cookware is placed on the pot rack 1 and is stationary; if the pressure exerted on the strain force sensors is equal to the weight of the pot rack 1, it is determined that there is no cookware on the pot rack 1.

[0073] Optionally, the detection module 17 includes an accelerometer sensor for detecting the acceleration of the cookware. The accelerometer sensor is positioned at the contact point between the feet of the pot support 1 and the drip tray 2, and the number of accelerometer sensors matches the number of feet on the pot support 1. The control module 18 is further configured to determine the cookware's movement based on its acceleration and to determine the cooking scenario based on the movement. Specifically, during the detection process, the accelerometer sensor detects the cookware's acceleration, and the control module 18 identifies the cookware's movement based on this acceleration. For example, if the accelerometer sensor detects a continuous change in the cookware's acceleration, it determines that the user is tossing the pot.

[0074] Specifically, during the cooking process, the identification unit reads the label content of the editable identification unit and identifies data such as the material, shape, or type of the cookware based on the label content. If the type of cookware to be tested is a flat-bottomed aluminum pot, the drive motor 6 drives the anti-dry-burn probe 111 to rise and contact the bottom of the pot. If the type of cookware to be tested is a non-metallic pot (e.g., a clay pot), the movement of the pot is identified based on an ultrasonic sensor, displacement sensor, strain detection sensor, or acceleration sensor. When the pot to be tested has continuous movement, the drive motor 6 drives the anti-dry-burn probe 111 to descend into the burner 3. If the type of cookware to be tested is a round-bottomed iron pot, the movement of the pot is identified based on an ultrasonic sensor, displacement sensor, strain detection sensor, or acceleration sensor. When the pot to be tested does not have continuous movement, the drive motor 6 drives the anti-dry-burn probe 111 to contact the bottom of the pot, and the anti-dry-burn module 11 works normally.

[0075] refer to Figure 9 As shown, the stove anti-dry-burning control device also includes a timer module 19 and / or an interaction module 20; the timer module 19 is used to configure the timer duration, wherein the timer duration represents the cooking time of the stove; the interaction module 20 is used to obtain the working mode of the stove and display the corresponding data according to the working module; wherein the working mode includes at least one of the following: timer mode, probe lifting display mode and anti-dry-burning trigger mode.

[0076] refer to Figure 9 The control module 18 is connected to the timing module 19 and the interaction module 20. The timing module 19 configures the timing duration, and the control module 18 obtains the timing duration and controls the stove to turn off according to the timing duration. The control module 18 outputs the stove's working mode information to the interaction module 20, and the interaction module 20 displays the stove's working mode according to the working mode information.

[0077] refer to Figure 2The timing module 19 includes a timing encoder 14 and a timing encoder knob 15. The timing encoder 14 is sleeved on the valve body 16 and located below the panel 13, while the timing encoder knob 15 is sleeved on the upper part of the timing encoder 14 and located above the panel 13. The power knob is inserted into the top of the valve stem of the valve body 16 and located above the timing encoder knob 15. Both the valve body 16 and the timing encoder 14 are connected to the control module 18. The interaction module 20 includes a display panel 21, which abuts against the panel 13 and is connected to the control module 18. The upper surface of the display panel 21 is provided with a display screen. The display screen on the display panel 21 can display different data according to different modes. In the timing mode, the display panel 21 is used to display the remaining time in minutes, and the remaining time is displayed in seconds within 1 minute. In the probe lifting display mode, the display panel 21 can be used to display the height of the anti-dry burning probe 111 relative to the reference point, as well as the reminder display of the highest and lowest positions. In the anti-dry burning trigger mode, the display panel 21 can be used to display anti-dry burning trigger warning information (such as graphic warnings or light warnings).

[0078] refer to Figure 9 As shown, the stove anti-dry-burning control device of this application further includes: a flameout protection module 23 and a flame detection module 24. The flameout protection module 23 and the flame detection module 24 are respectively connected to the control module 18. The flameout protection module 23 performs flameout protection on the stove under the control of the control module 18. The flame detection module 24 is used to detect the flame detection data of the stove and send the flame detection data to the control module 18. The control module 18 can determine whether ignition is successful or whether flameout is successful based on the flame detection data.

[0079] Based on the same inventive concept, this invention provides a method for preventing dry burning in a cooktop, implemented using the aforementioned anti-dry burning control device. The cooktop includes a pot rack 1, a water tray 2, a burner 3, and an anti-dry burning module 11. The pot rack 1 supports the pot to be tested. Figure 10 This is a flowchart of a stove anti-dry-burning control method provided in an embodiment of the present invention, such as... Figure 10 As shown, the control methods include:

[0080] S1. Obtain the type detection data and dynamic detection data of the cookware to be tested.

[0081] In this embodiment, different types of sensors or other detection elements can be set at the bottom surface of the cookware facing the cookware to be tested to collect detection data at the corresponding location.

[0082] S2. Identify cooking scenarios based on type detection data and dynamic detection data, and adjust the working status and protection temperature threshold of the anti-dry burning module according to the cooking scenario.

[0083] Optionally, the stove anti-dry-burning control method of the present invention further includes: determining the type of cookware based on type detection data, and when the cookware type is easily deformable cookware, controlling the drive component 200 to drive the anti-dry-burning module 11 to move in the direction toward the cookware to be tested until the anti-dry-burning module 11 abuts against the bottom of the cookware to be tested; and / or, when the cookware type is non-easily deformable cookware, controlling the drive component 200 to drive the anti-dry-burning module 11 to move in the direction away from the cookware to be tested according to the cooking scenario.

[0084] Specifically, if the cookware being tested is detected to be made of a non-metallic material, the bottom temperature of the non-metallic cookware will be higher during cooking due to its poor thermal conductivity, thus requiring an increase in the anti-dry-burn protection temperature threshold. Conversely, if the cookware being tested is made of a metallic material, the bottom temperature difference between the metallic cookware and the food inside is smaller during cooking, so the anti-dry-burn protection temperature threshold needs to be lowered to avoid misjudgment by the anti-dry-burn module 11. If the cookware is being moved, it is determined that the user is moving the cookware, such as flipping or transferring it, and the anti-dry-burn module 11 is deactivated to prevent the cookware from colliding with the anti-dry-burn module. If block 11 collides with the cookware, it may damage the cookware or the anti-dry-burn module 11. If the cookware is determined to be stationary, the anti-dry-burn module 11 will activate and come into contact with the bottom of the cookware to detect the temperature of the bottom and prevent dry burning. If the cookware is determined to be easily deformable, the control drive component 200 will drive the anti-dry-burn module 11 to move towards the bottom surface of the cookware, so that the anti-dry-burn module 11 comes into contact with the bottom of the cookware to detect whether the bottom temperature is too high. If the cookware is not easily deformable, the drive component 200 will drive the anti-dry-burn module 11 to move away from the bottom surface of the cookware to avoid collision between the anti-dry-burn module 11 and the cookware, which could damage the anti-dry-burn module 11 or the cookware. If the anti-dry-burn module 11 detects that the bottom temperature is higher than the anti-dry-burn protection temperature threshold, it will trigger the anti-dry-burn high-temperature protection, the display panel 21 will show that the anti-dry-burn mode has been triggered, and the gas supply will be cut off, and the stove will turn off. If the user rotates the timer encoder knob 15 to turn on the timer mode, the display panel 21 can also display the timer mode and the remaining timer time. If the anti-dry burning high temperature protection is not triggered within the timer time, the gas supply will be cut off and the stove will turn off when the timer time ends.

[0085] Optionally, the stove anti-dry-burning control method of the present invention further includes: determining the type of cookware to be tested based on the type detection data collected by the identification unit, and determining the material and shape of the cookware based on the type of cookware to be tested.

[0086] Optionally, the stove anti-dry-burning control method of the present invention further includes: acquiring the working mode of the stove and displaying corresponding data according to the working module; wherein the working mode includes at least one of the following: timed mode, probe lifting and display mode, and anti-dry-burning trigger mode.

[0087] Figure 11 This is a flowchart of another method for preventing dry burning in a stove, provided in an embodiment of the present invention. (Reference) Figure 11 The user rotates the fire control knob to ignite the stove. A thermocouple checks if ignition is successful, and the anti-dry-burn mode is activated by default upon successful ignition. Next, the near-field radio frequency identification (RFID) device and accelerometer determine the type of cookware and the cooking action. If the cookware is a flat-bottomed aluminum pot, the drive motor 6 raises the anti-dry-burn probe 111 to contact the bottom of the pot. If the cookware is not flat-bottomed aluminum and there is continuous movement, the anti-dry-burn probe 111 descends into the burner 3. If the cookware has no continuous movement and is a round-bottomed iron pot, the drive motor 6 raises the anti-dry-burn probe 111 to contact the bottom of the pot, and the anti-dry-burn module 11 operates normally. If the cookware has no continuous movement and is a clay pot, the anti-dry-burn protection temperature threshold is increased by Δt. If the anti-dry-burn high-temperature protection is triggered, the stove shuts off; if the anti-dry-burn high-temperature protection is not triggered, the stove shuts off when the timer ends.

[0088] According to another aspect of the present invention, a cooktop is provided, comprising: a cooktop anti-dry-burning control device according to any embodiment of the present invention.

[0089] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0090] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A stove anti-dry-burning control device, the stove comprising a pot rack, a drip tray, a burner, and an anti-dry-burning module, wherein the pot rack is used to support the pot to be tested, characterized in that, The control device includes: The detection module is used to acquire type detection data and dynamic detection data of the cookware to be tested; A control module is connected to the detection module and the anti-dry-burning module respectively, and is used to identify the cooking scenario based on the type detection data and the dynamic detection data, and adjust the working state and protection temperature threshold of the anti-dry-burning module according to the cooking scenario; It also includes: a drive component for driving the anti-dry-burning module to move; The control module is further configured to: determine the cookware type based on the type detection data; and when the cookware type is a deformable cookware, control the drive component to drive the anti-dry-burning module to move in the direction toward the cookware to be tested until the anti-dry-burning module comes into contact with the bottom of the cookware to be tested; and when the cookware type is a non-deformable cookware, control the drive component to drive the anti-dry-burning module to move in the direction away from the cookware to be tested based on the cooking scenario.

2. The stove anti-dry-burning control device according to claim 1, characterized in that, The driving component includes: A drive motor, connected to the control module, is used to receive drive control signals sent by the control module and to perform forward or reverse rotation according to the drive control signals; The transmission mechanism includes a crank portion and a connecting rod portion. The crank portion is connected to the drive motor. The first end of the connecting rod portion is hinged to the crank portion, and the second end of the connecting rod portion is hinged to the anti-dry-burning module. The crank portion rotates synchronously with the drive motor, and the connecting rod portion drives the anti-dry-burning module to move in a direction toward or away from the pot to be tested. The control module is configured to: acquire the crank radius and connecting rod length of the transmission mechanism, determine the moving distance of the anti-dry burning module based on the type detection data and the dynamic detection data, determine the crank angle based on the moving distance, the crank radius and the connecting rod length, and send the drive control signal based on the crank angle.

3. The stove anti-dry-burning control device according to claim 2, characterized in that, The drive assembly also includes a fixing part, which is hinged to the second end of the connecting rod part, and the outer periphery of the fixing part forms a nested gap fit with the side wall of the hollow part of the burner head to lock and fix the anti-dry burning module, so that the anti-dry burning module can move in the direction toward or away from the pot to be tested.

4. The stove anti-dry-burning control device according to claim 3, characterized in that, The anti-dry-burning module includes: an anti-dry-burning probe and a support; The anti-dry-burning probe is installed in the hollow part of the burner head; The support portion is locked and fixed to the fixing portion.

5. The stove anti-dry-burning control device according to claim 1, characterized in that, The detection module includes: an identification unit and an editable identification unit; The editable identifier unit is disposed on the cookware to be tested and is used to store at least one of the cookware material, cookware shape or cookware type of the cookware to be tested, and the stored data is editable data; The identification unit is communicatively connected to the control module, or it is integrated with the control module.

6. The stove anti-dry-burning control device according to claim 1, characterized in that, The detection module is configured to identify at least one of the following: real-time distance from the bottom of the cookware, pressure exerted on the cookware rack, and acceleration of the cookware. The control module is also configured to determine the movement and shape of the cookware based on at least one of the real-time distance from the bottom surface of the cookware, the pressure borne by the cookware support, or the acceleration of the cookware.

7. The stove anti-dry-burning control device according to any one of claims 1-6, characterized in that, Also includes: Timed module and / or interactive module; The timing module is used to configure the timing duration; The interaction module is used to obtain the working mode of the stove and display the corresponding data according to the working mode; The operating modes include at least one of the following: timed mode, probe lifting and display mode, and anti-dry burning trigger mode.

8. A method for controlling dry burning in a stove, characterized in that, The stove anti-dry-burning control device as described in any one of claims 1 to 7, wherein the control method includes: Acquire the type detection data and dynamic detection data of the cookware to be tested; The cooking scenario is identified based on the type detection data and the dynamic detection data, and the working state and protection temperature threshold of the anti-dry burning module are adjusted according to the cooking scenario.

9. A stove, characterized in that, include: The stove anti-dry-burning control device according to any one of claims 1 to 7.

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