Control method and control apparatus for cooking appliance, cooking appliance, device, and storage medium

Abstract

A control method and a control apparatus (12) for a cooking appliance (100), the cooking appliance (100), and a storage medium. The control method for the cooking appliance (100) comprises: controlling the cooking appliance (100) to perform heating in a pressurized cooking stage (01); after the pressurized cooking stage ends, controlling the cooking appliance (100) to enter a pressure relief venting stage (02); and after the pressure relief venting stage ends, controlling the cooking appliance (100) to switch to perform heating in a non-pressurized cooking stage (03).

Description

Methods for controlling cooking appliances, control devices, cooking appliances, equipment and storage media

[0001] Priority information

[0002] This application claims priority and benefits to patent applications filed with the China National Intellectual Property Administration on July 22, 2024, with patent application numbers 202410989515.2 and 202421746577.2, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of cooking appliance technology, and in particular to a control method, control device, cooking appliance, cooking equipment, and storage medium for a cooking appliance. Background Technology

[0004] Pressure cookers in related technologies cannot achieve boiling cooking during the pressure cooking stage. In other words, current pressure cookers cannot perform both pressure cooking and pressureless cooking in a single cooking process, which makes the cooking function of pressure cookers relatively limited. Summary of the Invention

[0005] This application provides a method, device, appliance, equipment, and storage medium for controlling a cooking appliance to solve at least one of the aforementioned technical problems.

[0006] The control method for a cooking appliance provided in this application includes:

[0007] The cooking appliance is controlled to heat during the pressurized cooking stage;

[0008] After the pressurized cooking stage is completed, the cooking appliance is controlled to enter the depressurization and venting stage;

[0009] After the pressure relief and venting phase is completed, the cooking appliance is switched to the pressureless cooking phase for heating.

[0010] The aforementioned cooking appliances can perform a pressure relief and exhaust stage after the pressure cooking stage, and then perform a pressureless cooking stage after the pressure relief and exhaust stage, thereby enabling a switch from pressureless cooking to pressureless cooking and improving the cooking effect of the appliances.

[0011] In some embodiments, the cooking appliance includes a pressure relief valve, a switching element, a first exhaust channel, and a second exhaust channel. The pressure relief valve is used to open and close the first exhaust channel, and the switching element is used to open and close the second exhaust channel. The exhaust area of ​​the second exhaust channel is larger than the exhaust area of ​​the first exhaust channel.

[0012] Controlling the heating of the cooking appliance during the pressurized cooking phase includes:

[0013] The pressure limiting valve is controlled to close the first exhaust passage and the switching element is controlled to close the second exhaust passage, so that the cooking appliance is in the pressurized cooking stage;

[0014] After the pressure relief and venting phase ends, controlling the cooking appliance to switch to the pressureless cooking phase includes:

[0015] After the pressure relief and venting phase is completed, control the pressure limiting valve to close the first venting channel and control the switching element to open the second venting channel so that the cooking appliance is in the pressure-free cooking phase, or;

[0016] After the pressure relief and venting phase is completed, the pressure limiting valve is controlled to open the first venting channel and the switching element is controlled to open the second venting channel, so that the cooking appliance is in the pressure-free cooking phase.

[0017] In some embodiments, after the pressurized cooking stage ends, controlling the cooking appliance to enter a depressurization and venting stage includes:

[0018] The pressure relief valve is controlled to open the first exhaust passage for a pressure relief and exhaust phase, and / or the switching element is controlled to open the second exhaust passage for a pressure relief and exhaust phase.

[0019] In some embodiments, the switching element includes a switching valve or a first float.

[0020] In some embodiments, where the switching element includes a switching valve, the cooking appliance includes a second float for indicating whether pressure is present in the cooking chamber of the cooking appliance.

[0021] In some embodiments, the pressure bearing pressure of the switching element is greater than the pressure limiting pressure of the pressure limiting valve.

[0022] In some embodiments, the cooking appliance includes a pressure detection component and a cooking cavity, the pressure detection component being used to detect the pressure within the cooking cavity.

[0023] In some embodiments, the pressure detection component includes a float assembly.

[0024] In some embodiments, the exhaust area of ​​the second exhaust passage is greater than or equal to 30 mm^2.

[0025] In some embodiments, the exhaust area of ​​the first exhaust channel is less than or equal to 10 mm^2.

[0026] In some embodiments, the control method includes:

[0027] During the pressure relief and venting phase, the cooking appliance is controlled to heat up or stop heating.

[0028] In some embodiments, the control method includes:

[0029] Before the cooking appliance enters the pressurized cooking stage, the cooking appliance is controlled to heat at maximum power.

[0030] A control device for a cooking appliance according to an embodiment of this application includes a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, it implements the steps of the control method of any of the above embodiments.

[0031] One embodiment of this application provides a cooking appliance that includes the control device described in any of the above embodiments.

[0032] This application provides a non-volatile computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the control method described in any of the above embodiments.

[0033] The control device, cooking appliance, and computer-readable storage medium of the aforementioned cooking appliance can perform a pressure relief and exhaust stage after the pressure cooking stage ends, and then perform a pressureless cooking stage after the pressure relief and exhaust stage ends, thereby enabling the switch from pressure cooking to pressureless cooking and improving the cooking effect of the cooking appliance.

[0034] One embodiment of the cooking apparatus of this application includes:

[0035] A pot lid assembly, comprising a pot lid and an exhaust valve, wherein the pot lid is provided with a first exhaust hole and a second exhaust hole, and the exhaust valve is connected to the pot lid and seals the first exhaust hole;

[0036] A pot body, the pot body being connected to the pot lid, a cooking cavity being formed inside the pot body, and the pot lid covering the cooking cavity;

[0037] A sealing assembly, the sealing assembly including a driving member and a movable member, the driving member being configured to drive the movable member to open or close the second vent hole;

[0038] The exhaust area of ​​the second exhaust port is greater than or equal to 30 mm^2.

[0039] In the aforementioned cooking equipment, by adding a second vent hole to the pot lid, and the vent area of ​​the second vent hole being greater than or equal to 30 mm^2, the driving component can drive the movable component to open or close the second vent hole. When the cooking equipment needs to perform pressureless cooking, the driving component drives the movable component to open the second vent hole, so that the cooking chamber is connected to the outside of the cooking equipment through the second vent hole, thereby increasing the venting volume and avoiding the decrease in cooking speed and increase in cooking time due to insufficient venting volume of the vent valve.

[0040] In some embodiments, the exhaust area of ​​the second exhaust port is larger than the exhaust area of ​​the first exhaust port.

[0041] In some embodiments, the exhaust area of ​​the first exhaust port is less than or equal to 10 mm^2.

[0042] In some embodiments, the self-locking force of the drive member is greater than the pressure exerted by the gas pressure inside the cooking cavity on the end of the movable member.

[0043] In some embodiments, the sealing assembly includes a first seal disposed on the wall of the second vent, wherein when the movable member closes the second vent, the first seal is clamped between the movable member and the wall of the second vent.

[0044] In some embodiments, the pot lid includes an inner lid and a cover plate, the sealing assembly includes a second seal, the pot lid has a mounting hole that extends through the inner lid and the cover plate, the second seal is disposed in the mounting hole, the second seal seals the inner lid and the cover plate, and the second seal has a second vent hole.

[0045] In some embodiments, the movable member includes a first movable segment and a second movable segment, the first movable segment connecting the second movable segment and the drive member, the diameter of the first movable segment being larger than the diameter of the second movable segment, and the second exhaust port including a first hole and a second hole;

[0046] When the movable part closes the second vent hole, the first movable section passes through the first hole, and the second movable section passes through and seals the second hole;

[0047] When the movable part opens the second vent, the second movable section opens the second hole so that the second hole communicates with the outside of the cooking device through the first hole.

[0048] In some embodiments, the pot lid includes an inner lid and a cover plate, the inner lid having the first hole and the cover plate having the second hole, and the sealing assembly including a third seal that seals the first movable section and the cover plate when the second movable section passes through and seals the second hole.

[0049] In some embodiments, the third seal is provided at least on the end face where the first movable segment connects to the second movable segment and surrounds the second movable segment.

[0050] In some embodiments, a first thread is provided on the circumferential side of the second movable segment, and a second thread is provided on the wall of the second hole. When the movable member closes the second vent hole, the first thread and the second thread are connected in a mating manner, and when the movable member opens the second vent hole, the first thread and the second thread are separated.

[0051] In some embodiments, the surface of the cover plate facing the inner cover has a boss, and the second hole passes through the boss.

[0052] In some embodiments, the sealing assembly includes a fourth seal, the inner cover and the cover plate are spaced apart, the fourth seal is located between the inner cover and the cover plate, and the fourth seal connects the inner cover and the cover plate in the circumferential direction of the second vent.

[0053] In some embodiments, at least a portion of the second hole is a tapered hole that gradually expands in a direction away from the pot body, and the end of the second movable segment away from the first movable segment is a tapered portion that gradually expands in a direction away from the pot body, the tapered portion being adapted to the tapered hole, and the drive member being configured to drive the movable member to move to different positions relative to the pot lid to change the opening area of ​​the second hole.

[0054] In some embodiments, the second vent includes a first opening and a second opening, the first opening facing the cooking cavity and the second opening facing away from the cooking cavity. When the movable member closes the second vent, the length of the movable member extending from the first opening toward the cooking cavity is greater than 1 mm, and / or, when the movable member opens the second vent, the distance between the movable member and the second opening is greater than 3 mm.

[0055] In some embodiments, the drive member is configured to drive the movable member to different positions relative to the lid to change the opening area of ​​the second vent.

[0056] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0057] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementations of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0058] Figure 1 is a flowchart illustrating the control method for cooking appliances provided in the embodiments of this application;

[0059] Figure 2 is a structural schematic diagram of the cooking appliance provided in the embodiments of this application;

[0060] Figure 3 is a schematic diagram of the modules of the cooking appliance provided in the embodiments of this application;

[0061] Figures 4 to 9 are partial structural schematic diagrams of the cooking utensils provided in the embodiments of this application;

[0062] Figure 10 is a schematic diagram of the structure of a cooking device according to an embodiment of this application;

[0063] Figure 11 is a second schematic diagram of the structure of the cooking device according to an embodiment of this application;

[0064] Figure 12 is a partial structural schematic diagram of a cooking device according to an embodiment of this application;

[0065] Figure 13 is a second partial structural schematic diagram of the cooking device according to an embodiment of this application;

[0066] Figure 14 is a partial structural schematic diagram of the cooking device according to an embodiment of this application;

[0067] Figure 15 is a fourth partial structural schematic diagram of the cooking device according to an embodiment of this application;

[0068] Figure 16 is a partial structural schematic diagram of the cooking device according to an embodiment of this application;

[0069] Figure 17 is a partial structural schematic diagram of the cooking device according to an embodiment of this application;

[0070] Figure 18 is a partial structural schematic diagram of the cooking device according to an embodiment of this application;

[0071] Figure 19 is a partial structural schematic diagram of the cooking device according to an embodiment of this application;

[0072] Figure 20 is a partial structural schematic diagram of the cooking device according to an embodiment of this application;

[0073] Figure 21 is a partial structural schematic diagram of the cooking device according to an embodiment of this application.

[0074] Explanation of reference numerals in the attached drawings: Cooking appliance 100, control device 12, heating assembly 14, first cooking chamber 16, pressure relief valve 18, switching element 20, first exhaust channel 22, second exhaust channel 24, first lid 26, first pot body 28, first drive element 30, first actuating element 32, second drive element 34, switching valve 36, first float 38, first main body 40, first limiting part 42, second float 44, mounting through hole 46, second main body 48, second limiting part 50, third exhaust channel 52, third main body 54, third limiting part 56, trigger element 58, memory 60, processor 62; Cooking device 200, lid assembly 101, second lid 110, first exhaust hole 120, inner lid 140, cover plate 160, mounting hole 180, first sealing element 190. Second seal 201, second vent 220, first hole 240, second hole 260, groove 280, vent valve 300, vent pipe 340, second pot body 360, second cooking cavity 380, sealing assembly 400, driving component 420, moving component 440, first moving section 460, second moving section 470, fourth seal 500, vent space 520, third seal 540, connecting part 560, closing part 580, first opening 570, second opening 590, fifth seal 600, boss 610, cover plate 620, third vent 640. Detailed Implementation

[0075] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0076] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0078] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0079] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0080] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0081] Please refer to Figures 1 and 2. An embodiment of this application provides a method for controlling a cooking appliance 100, which includes:

[0082] 01, Control the cooking appliance 100 to heat during the pressurized cooking stage;

[0083] 03. After the pressurized cooking stage is completed, the cooking appliance 100 is controlled to enter the depressurization and venting stage;

[0084] 05. After the pressure relief and venting stage is completed, control the cooking appliance 100 to switch to the pressureless cooking stage for heating.

[0085] The cooking appliance 100 can perform a pressure relief and exhaust stage after the pressure cooking stage ends, and then perform a pressureless cooking stage after the pressure relief and exhaust stage ends, thereby enabling the switch from pressure cooking to pressureless cooking and improving the cooking effect of the cooking appliance 100.

[0086] Specifically, before cooking, the user can select a cooking mode via buttons on the cooking appliance 100 or a terminal (such as a mobile phone) connected to the cooking appliance 100. For example, the selected cooking mode is a pressurized or pressureless cooking mode. Referring to Figure 3, in one embodiment, the cooking appliance 100 may include a control device 12, a heating component 14, and a first cooking chamber 16, with the control device 12 electrically connected to the heating component 14. During the pressurized cooking stage, the first cooking chamber 16 forms a relatively sealed space, preventing communication with the outside of the first cooking chamber 16. During cooking, the pressure inside the first cooking chamber 16 can be maintained at a high pressure (greater than atmospheric pressure), achieving pressurized cooking. During the pressureless cooking stage, the first cooking chamber 16 can be connected to the outside of the first cooking chamber 16. During cooking, the pressure inside the first cooking chamber 16 can be maintained in balance with the external air pressure (atmospheric pressure), achieving pressureless cooking.

[0087] The control device 12 can control the heating component 14 to operate and heat the first cooking chamber 16 according to the selected cooking mode. The cooking mode may include the types of cooking stages and the cooking time corresponding to each cooking stage. When the first cooking chamber 16 is heated, the water temperature in the first cooking chamber 16 rises and boils, and the air pressure in the first cooking chamber 16 gradually increases. When the air pressure in the first cooking chamber 16 is greater than the external air pressure of the first cooking chamber 16, the cooking appliance 100 operates in the pressurized cooking stage.

[0088] When the cooking time of the pressurized cooking stage is completed, the pressurized cooking stage ends. Afterwards, the control device 12 can control the cooking appliance 100 to enter the pressure relief and venting stage. The pressure relief and venting stage is to release the high-pressure gas in the first cooking chamber 16 to the outside of the first cooking chamber 16 until the gas pressure in the first cooking chamber 16 is equal to the external gas pressure.

[0089] After the pressure relief and exhaust phase is completed, the control device 12 can control the cooking appliance 100 to switch to the pressureless cooking phase for heating. Specifically, the pressureless cooking phase is carried out when the first cooking chamber 16 is connected to the outside of the first cooking chamber 16. During cooking, the gas generated in the first cooking chamber 16 can be discharged to the outside of the first cooking chamber 16, so that the pressure inside the first cooking chamber 16 can be kept in balance with the external air pressure, thus achieving pressureless cooking.

[0090] The pressureless cooking stage ends when the cooking time is completed. Optionally, after the pressureless cooking stage ends, the control device 12 can control the cooking appliance 100 to issue a cooking completion prompt message, allowing the user to promptly view and operate the cooking appliance 100. The cooking completion prompt message may include, but is not limited to, sound and light information. The control device 12 can also send the cooking completion prompt message to a terminal (such as a mobile phone) that is connected to the cooking appliance 100, so that the terminal can push the cooking completion prompt message to the user.

[0091] Optionally, the control device 12 may include a controller, a computer board, a main control board, a control board, etc.

[0092] In some embodiments, the cooking appliance 100 includes a pressure relief valve 18, a switching element 20, a first exhaust channel 22, and a second exhaust channel 24. The pressure relief valve 18 is used to open and close the first exhaust channel 22, and the switching element 20 is used to open and close the second exhaust channel 24. The exhaust area of ​​the second exhaust channel 24 is larger than the exhaust area of ​​the first exhaust channel 22.

[0093] Step 01 includes:

[0094] The pressure limiting valve 18 is controlled to close the first exhaust passage 22 and the switching element 20 is controlled to close the second exhaust passage 24, so that the cooking appliance 100 is in the pressurized cooking stage;

[0095] Step 05 includes:

[0096] After the pressure relief and venting phase is completed, control the pressure limiting valve 18 to close the first venting channel 22 and control the switching element 20 to open the second venting channel 24 so that the cooking appliance 100 is in the pressure-free cooking phase, or;

[0097] After the pressure relief and venting phase is completed, the pressure limiting valve 18 is controlled to open the first venting passage 22 and the switching element 20 is controlled to open the second venting passage 24 so that the cooking appliance 100 is in the pressure-free cooking phase.

[0098] Therefore, the cooking appliance 100 can be placed in a pressurized cooking stage or a pressureless cooking stage by controlling the pressure relief valve 18 and the switching element 20.

[0099] Specifically, the pressure limiting valve 18 functions as a pressure limiting valve. When the pressure inside the first cooking chamber 16 is less than the pressure limiting pressure of the pressure limiting valve 18, the pressure limiting valve 18 can close the first exhaust passage 22 under the action of gravity, preventing the gas generated inside the first cooking chamber 16 from being discharged through the first exhaust passage 22. As cooking time progresses, the gas pressure generated inside the first cooking chamber 16 increases. When the pressure inside the first cooking chamber 16 exceeds the pressure limiting pressure of the pressure limiting valve 18, the pressure limiting valve 18 is pushed up by the gas pressure inside the first cooking chamber 16, thereby opening the first exhaust passage 22, allowing the gas inside the first cooking chamber 16 to be discharged through the first exhaust passage 22 for pressure relief. In one example, the pressure limiting pressure of the pressure limiting valve 18 can be 70 kPa.

[0100] Referring to Figure 2, the cooking appliance 100 includes a first lid 26 and a first pot body 28. The first lid 26 has a first venting channel 22 and a second venting channel 24. A pressure relief valve 18 is movably connected to the first lid 26 and closes the first venting channel 22. A first cooking cavity 16 is formed inside the first pot body 28. The first lid 26 covers the first cooking cavity 16. The first pot body 28 and the first lid 26 are hinged or detachably connected. The upper end of the first cooking cavity 16 has an opening. When the cooking appliance 100 is in operation, the first lid 26 closes the first pot body 28 to close the opening of the first cooking cavity 16, making the first cooking cavity 16 a relatively sealed cavity. When the first lid 26 opens the first pot body 28, the opening of the first cooking cavity 16 is also opened.

[0101] Referring to Figures 4 and 5, the cooking appliance 100 also includes a first driving assembly disposed on the first lid 26. The first driving assembly includes a first driving member 30 and a first actuating member 32. The control device 12 can be electrically connected to the first driving member 30, and the first driving member 30 is connected to the first actuating member 32. The first driving member 30 can drive the first actuating member 32 to move back and forth in a straight line, thereby switching between a first position and a second position. In the first position, the first actuating member 32 is separated from the pressure relief valve 18, causing the pressure relief valve 18 to close the first exhaust passage 22 under its own gravity, as shown in Figure 4. In the second position, the first actuating member 32 pushes up the pressure relief valve 18, causing the pressure relief valve 18 to open the first exhaust passage 22, as shown in Figure 5. The first actuating member 32 may include a push rod. The first driving member 30 may include a linear motor.

[0102] The control device 12 can control the operation of the first drive member 30, placing the first actuating member 32 in either a first or second position. For example, when the cooking appliance 100 is in a pressurized cooking stage, the control device 12 can control the first drive member 30 to drive the first actuating member 32 to the first position, disengaging the first actuating member 32 from the pressure relief valve 18, which then closes the first exhaust passage 22. When the cooking appliance 100 is in a depressurized exhaust stage and / or a pressureless cooking stage, the control device 12 can control the first drive member 30 to drive the first actuating member 32 to the second position, causing the first actuating member 32 to lift the pressure relief valve 18, which then opens the first exhaust passage 22.

[0103] It is understood that in other embodiments, the first drive component controls the pressure relief valve 18 to open and close the first exhaust passage 22, which is not limited to the above-described embodiments. Other actuators and other motion methods can also be used to open and close the pressure relief valve 18 and the first exhaust passage 22. Other motion methods include, but are not limited to, driving other actuators to rotate to open and close the pressure relief valve 18 and the first exhaust passage 22.

[0104] The control device 12 can control the switching element 20 to open and close the second exhaust passage 24. Specifically, the cooking appliance 100 includes a second drive assembly disposed on the first pot lid 26. The second drive assembly is connected to the switching element 20, and the control device 12 is electrically connected to the second drive assembly. Referring to Figure 3, the second drive assembly may include a second drive element 34 and a second actuating element. The switching element 20 is movably disposed on the first pot lid 26. The second drive element 34 can be connected to the second actuating element to drive the second actuating element to switch back and forth between a third position and a fourth position, thereby opening and closing the second exhaust passage 24. When the second actuating element is in the third position, it causes the switching element 20 to close the second exhaust passage 24; when the second actuating element is in the fourth position, it causes the switching element 20 to open the second exhaust passage 24.

[0105] Optionally, in one embodiment, the first driving component and the second driving component are the same driving component, the first position and the third position are the same position, and the second position and the fourth position are the same position. Optionally, in one embodiment, the first driving component and the second driving component are two different driving components.

[0106] Therefore, when the cooking appliance 100 needs to be in a pressurized cooking stage, the control device 12 can control the first drive assembly to place the first actuating element 32 in a first position, and control the second drive assembly to place the second actuating element in a third position, thereby causing the pressure relief valve 18 to close the first exhaust passage 22 and the switching element 20 to close the second exhaust passage 24. When the cooking appliance 100 needs to be in a pressureless cooking stage, the control device 12 can control the first drive assembly to place the first actuating element 32 in a second position, and control the second drive assembly to place the second actuating element in a fourth position, thereby causing the pressure relief valve 18 to open the first exhaust passage 22 and the switching element 20 to open the second exhaust passage 24; or the control device 12 can control the first drive assembly to place the first actuating element 32 in a first position, and control the second drive assembly to place the second actuating element in a fourth position, thereby causing the pressure relief valve 18 to close the first exhaust passage 22 and the switching element 20 to open the second exhaust passage 24. Because the exhaust area of ​​the second exhaust channel 24 is larger than that of the first exhaust channel 22, even when the pressure relief valve 18 closes the first exhaust channel 22 and the switching element 20 opens the second exhaust channel 24, the cooking appliance 100 can still be in the pressureless cooking stage.

[0107] The exhaust area of ​​the second exhaust channel 24 is larger than that of the first exhaust channel 22, ensuring that the amount of airflow discharged (loss) generated by the cooking appliance 100 during pressureless cooking is greater than the amount of airflow generated. This allows the cooking appliance 100 to smoothly perform the pressureless cooking stage. Therefore, when the cooking appliance 100 needs to perform the pressureless cooking stage, the switching component 20 can open the second exhaust channel 24, allowing the first cooking chamber 16 to connect to the outside of the first cooking chamber 16 through the second exhaust channel 24, thereby increasing the exhaust volume and enabling the pressureless cooking stage.

[0108] In some implementations, step 03 includes:

[0109] The pressure relief valve 18 is controlled to open the first exhaust passage 22 for a pressure relief and exhaust phase, and / or the switching element 20 is controlled to open the second exhaust passage 24 for a pressure relief and exhaust phase.

[0110] Thus, the cooking appliance 100 can be put into a pressure relief and venting phase by means of the pressure relief valve 18 and / or the switching element 20.

[0111] Specifically, in one embodiment, the control device 12 can control the first drive assembly to open the first exhaust passage 22 via the pressure relief valve 18, and control the second drive assembly to open the second exhaust passage 24 via the switching element 20, so that the first cooking chamber 16 can communicate with the outside of the first cooking chamber 16 through the first exhaust passage 22 and the second exhaust passage 24. Using two exhaust passages for pressure relief and exhaust can increase the speed of pressure relief and exhaust.

[0112] In one embodiment, the control device 12 can control the first drive assembly to open the first exhaust passage 22 via the pressure relief valve 18 and control the second drive assembly to close the second exhaust passage 24 via the switching element 20, thereby allowing the first cooking chamber 16 to communicate with the outside through the first exhaust passage 22 for pressure relief and exhaust. In another embodiment, the control device 12 can control the second drive assembly to open the second exhaust passage 24 via the switching element 20 and control the first drive assembly to close the first exhaust passage 22 via the pressure relief valve 18, thereby allowing the first cooking chamber 16 to communicate with the outside through the second exhaust passage 24 for pressure relief and exhaust.

[0113] In some embodiments, the switching element 20 includes a switching valve 36 or a first float 38.

[0114] Therefore, the structure of the switching component 20 is simple.

[0115] Specifically, referring to Figures 4 and 5, in one embodiment, the switching element 20 includes a switching valve 36. Optionally, the operating principle of the second drive assembly controlling the switching valve 36 to open and close the second exhaust passage 24 can refer to the operating principle of the first drive assembly controlling the pressure relief valve 18 to open and close the first exhaust passage 22.

[0116] Optionally, the second actuating element can be connected to the switching valve 36, and the second driving element 34 can drive the second actuating element to move the switching valve 36, thereby opening and closing the second exhaust passage 24. Specifically, when the second driving element 34 drives the second actuating element to switch to the third position, the second actuating element can move the switching valve 36 to the position of closing the second exhaust passage 24; when the second driving element 34 drives the second actuating element to switch to the fourth position, the second actuating element can move the switching valve 36 to the position of opening the second exhaust passage 24.

[0117] Referring to Figures 6 and 7, in one embodiment, the switching component 20 includes a first float 38. The first float 38 includes a first body 40 and two first limiting portions 42, which are respectively located at both ends of the first body 40. The first limiting portions 42 protrude from the first body 40. The first body 40 movably passes through the second exhaust channel 24 and is in clearance fit with the second exhaust channel 24, thereby allowing the first float 38 to rise and fall within the second exhaust channel 24.

[0118] The first float 38 can be positioned at a lower position when there is no pressure in the first cooking chamber 16 (zero pressure), thus indicating that there is no pressure in the first cooking chamber 16. At this time, the first float 38 can open the second exhaust passage 24. In the initial stage of cooking, the cold air in the first cooking chamber 16 can be discharged from the second exhaust passage 24, thereby improving the heating efficiency of the cooking appliance 100.

[0119] Optionally, when the second actuating member is in the third position, it can avoid the first float 38 in the lifting direction, thereby allowing the first float 38 to rise and close the second exhaust passage 24 when pressure is generated in the first cooking cavity 16. When the second actuating member is in the fourth position, it can be in the path of the first float 38 in the lifting direction, thereby preventing the first float 38 from rising to the position that closes the second exhaust passage 24, and allowing the first float 38 to open the second exhaust passage 24.

[0120] In some embodiments, where the switching element 20 includes a switching valve 36, the cooking appliance 100 includes a second float 44 for indicating whether pressure is present in the first cooking chamber 16 of the cooking appliance 100.

[0121] This allows users to easily understand the pressure status of the cooking appliance 100.

[0122] Specifically, referring to Figure 8, the first pot lid 26 is provided with a mounting through hole 46, and the second float 44 includes a second body 48 and two second limiting parts 50. The two second limiting parts 50 are respectively provided at both ends of the second body 48, and the second limiting parts 50 protrude from the second body 48. The second body 48 passes through the mounting through hole 46, and the circumferential side of the second body 48 can slide in contact with the hole wall of the mounting through hole 46, so that the second float 44 can slide and rise and fall within the mounting through hole 46.

[0123] When the first cooking chamber 16 is not pressurized (at zero pressure), the second float 44 is in a lower position, indicating that the first cooking chamber 16 has not yet been pressurized. During pressurized cooking, the air pressure in the first cooking chamber 16 can lift the second float 44, placing it in a higher position, indicating that the first cooking chamber 16 has been pressurized. Simultaneously, the second limiting portion 50 at the bottom of the second body 48 can further seal the mounting through hole 46. During unpressurized cooking, since the first cooking chamber 16 is connected to the outside through the second exhaust channel 24 or through both the second exhaust channel 24 and the first exhaust channel 22, the first cooking chamber 16 is not pressurized, and the second float 44 is in a lower position.

[0124] Please refer to Figure 9. The first pot lid 26 is provided with a third exhaust channel 52. The second float 44 includes a third body 54 and two third limiting parts 56. The two third limiting parts 56 are respectively provided at both ends of the third body 54. The third limiting parts 56 protrude from the third body 54. The third body 54 is movably provided with the third exhaust channel 52 and is in clearance fit with the third exhaust channel 52, so that the second float 44 can rise and fall within the third exhaust channel 52.

[0125] The second float 44 can be positioned at a lower position when the first cooking chamber 16 is not pressurized (at zero pressure), thus indicating that the first cooking chamber 16 has not yet been pressurized. At this time, the second float 44 can open the third exhaust passage 52. In the initial stage of cooking, the cold air in the first cooking chamber 16 can be discharged from the third exhaust passage 52, thereby improving the heating efficiency of the cooking appliance 100.

[0126] During the pressurized cooking stage, the air pressure inside the first cooking chamber 16 can lift the second float 44, placing it in a higher position, thus indicating that pressure has been established inside the first cooking chamber 16. Simultaneously, the third limiting part 56 at the bottom of the third body 54 can close the third exhaust passage 52, preventing the first cooking chamber 16 from communicating with the outside through the third exhaust passage 52, allowing the cooking appliance 100 to perform the pressurized cooking stage.

[0127] During the pressureless cooking stage, since the first cooking chamber 16 is connected to the outside of the first cooking chamber 16 through the second exhaust channel 24 or through the second exhaust channel 24 and the first exhaust channel 22, no pressure is released inside the first cooking chamber 16. As a result, the second float 44 is in a lower position, and the second float 44 can open the third exhaust channel 52. The first cooking chamber 16 can also be connected to the outside of the first cooking chamber 16 through the third exhaust channel 52.

[0128] In some embodiments, the pressure bearing pressure of the switching element 20 is greater than the pressure limiting pressure of the pressure limiting valve 18.

[0129] Therefore, it can be ensured to a certain extent that the cooking appliance 100 can smoothly carry out the pressure cooking stage.

[0130] Specifically, during the limited cooking stage, if the pressure inside the first cooking chamber 16 exceeds the pressure limit of the pressure relief valve 18, the pressure relief valve 18 can open the first exhaust passage 22 to release pressure and exhaust air, thereby reducing the pressure inside the first cooking chamber 16 and improving the safety of the cooking appliance 100 to some extent. When the pressure inside the first cooking chamber 16 drops below the pressure limit of the pressure relief valve 18, the pressure relief valve 18 closes the first exhaust passage 22 again.

[0131] The pressure bearing pressure of the switching element 20 is greater than the pressure limiting pressure of the pressure limiting valve 18. This allows the switching element 20 to withstand the pressure in the first cooking chamber 16 while the pressure limiting valve 18 releases pressure when the pressure in the first cooking chamber 16 is greater than the pressure limiting pressure of the pressure limiting valve 18. This prevents the pressure in the first cooking chamber 16 from breaking through the switching element 20 and causing the switching element 20 to fail to keep the second exhaust channel 24 closed. This can, to a certain extent, ensure that the cooking appliance 100 can smoothly carry out the pressurized cooking stage.

[0132] In one example, the pressure limiting valve 18 has a pressure limiting pressure of 70 kPa, and the pressure bearing pressure of the switching element 20 is greater than 70 kPa.

[0133] In some embodiments, the cooking appliance 100 includes a pressure detection component and a first cooking cavity 16, the pressure detection component being used to detect the pressure within the first cooking cavity 16.

[0134] Therefore, the pressure inside the first cooking cavity 16 can be obtained through the pressure detection component.

[0135] Specifically, when the pressure inside the first cooking cavity 16 is greater than atmospheric pressure, it indicates that the first cooking cavity 16 is pressurized, and the control device 12 can determine that the cooking appliance 100 is in the pressurized cooking stage. When the pressure inside the first cooking cavity 16 is equal to atmospheric pressure, it indicates that the first cooking cavity 16 is not pressurized, and the control device 12 can determine that the pressure relief and exhaust stage has ended, thus allowing the pressureless cooking stage to proceed. When the pressure inside the first cooking cavity 16 is equal to atmospheric pressure, the first cooking cavity 16 can be considered to be in a zero-pressure state (not pressurized). When the pressure inside the first cooking cavity 16 is greater than atmospheric pressure, the first cooking cavity 16 can be considered to be in a pressurized state (pressurized).

[0136] Optionally, the pressure detection assembly may include a pressure sensor, which may be disposed on the surface of the first lid 26 facing the first cooking cavity 16 to sense the pressure within the first cooking cavity 16. The pressure sensor may be electrically connected to the control device 12.

[0137] In some embodiments, the pressure detection component includes a float assembly.

[0138] Therefore, the pressure inside the first cooking chamber 16 can be detected by the float assembly, which can reduce the cost of the cooking appliance 100.

[0139] Specifically, referring to Figures 6 and 7, in one embodiment, the float assembly includes a first float 38 and a trigger 58. The control device 12 is electrically connected to the trigger 58. When the first cooking chamber 16 is not yet pressurized, the first float 38 is in a lower position and does not trigger the trigger 58 (as shown in Figure 6). As the air pressure in the first cooking chamber 16 gradually increases, when the air pressure in the first cooking chamber 16 exceeds atmospheric pressure, the first float 38 is lifted by the air pressure in the first cooking chamber 16 and is located in a higher position, thereby triggering the trigger 58 (as shown in Figure 7). This allows the trigger 58 to send a pressurization signal, and the control device 12 can determine that the first cooking chamber 16 is in a pressurized cooking state.

[0140] After the pressurized cooking stage is completed, the control device 12 can control the cooking appliance 100 to enter the pressure relief and venting stage. Optionally, during the pressure relief and venting stage, the control device 12 can control the first drive assembly to open the first venting passage 22 by the pressure relief valve 18 and control the second drive assembly to open the second venting passage 24 by the switching element 20.

[0141] When the air pressure inside the first cooking chamber 16 equals atmospheric pressure, the first float 38 descends to a lower position, and the first float 38 no longer triggers the trigger 58. The control device 12 can then determine that the pressure relief and venting stage has ended, and thus can switch to the pressureless cooking stage. Optionally, the trigger 58 may include a reed switch or a contact trigger, etc., which is not specifically limited in this application.

[0142] Referring to Figures 8 and 9, in one embodiment, the float assembly includes a second float 44 and a trigger 58. The detection of the pressure state of the cooking appliance 100 using the second float 44 and trigger 58 can be referred to the above description of detecting the pressure state of the cooking appliance 100 using the first float 38 and trigger 58, and will not be elaborated upon here.

[0143] In some embodiments, the exhaust area of ​​the second exhaust passage 24 is greater than or equal to 30 mm^2 (square millimeters).

[0144] In this way, the exhaust area of ​​the second exhaust channel 24 can be guaranteed to meet the relevant exhaust speed design to a certain extent.

[0145] Specifically, in one embodiment, the second exhaust channel 24 is a cylindrical hole, and the exhaust area of ​​the cylindrical hole is the area of ​​the base of the cylinder. In another embodiment, the second exhaust channel 24 is a prism-shaped hole, and the exhaust area of ​​the prism-shaped hole is the area of ​​the base of the prism. The base of the prism includes, but is not limited to, triangles, quadrilaterals, pentagons, or other polygons. The prism may include right prisms and oblique prisms.

[0146] Optionally, for other regular or irregular shapes of the second exhaust channel 24, the exhaust area of ​​the second exhaust channel 24 can be the area of ​​a planar shape obtained by a cross-section perpendicular to the axis of the second exhaust channel 24. When there are multiple areas of the obtained planar shape, the minimum area of ​​the planar shape is greater than or equal to 30 mm^2.

[0147] The exhaust area of ​​the second exhaust channel 24 is S2, which is greater than or equal to 30 mm², i.e., S2 ≥ 30 mm². In some examples, S2 = 30 mm², 35 mm², 40 mm², 45 mm², 50 mm², or other values ​​≥ 30 mm². The upper limit of S2 can be determined based on the spatial configuration of the first lid 26 and the size of the cooking utensil 100, and this application does not limit it in this regard.

[0148] In some embodiments, the exhaust area of ​​the first exhaust channel 22 is less than or equal to 10 mm^2.

[0149] In this way, cooking appliance 100 can be put into pressure cooking smoothly to a certain extent.

[0150] Specifically, in one embodiment, the first exhaust channel 22 is a cylindrical hole, and the exhaust area of ​​the cylindrical hole is the area of ​​the base of the cylinder. In another embodiment, the first exhaust channel 22 is a prism-shaped hole, and the exhaust area of ​​the prism-shaped hole is the area of ​​the base of the prism. The base of the prism includes, but is not limited to, triangles, quadrilaterals, pentagons, or other polygons. The prism may include right prisms and oblique prisms.

[0151] Optionally, for other regular or irregular shapes of the first exhaust channel 22, the exhaust area of ​​the first exhaust channel 22 can be the area of ​​a planar shape obtained by a cross-section perpendicular to the axis of the first exhaust channel 2212. When there are multiple areas of the obtained planar shape, the maximum area of ​​the planar shape is less than or equal to 10 mm^2.

[0152] The exhaust area of ​​the first exhaust channel 22 is S1, which is less than or equal to 10 mm², i.e., S1 ≤ 10 mm². In some examples, S1 = 10 mm², 8 mm², 6 mm², 5 mm², or other values ​​≤ 10 mm². The lower limit of S1 can be determined based on the spatial configuration of the first lid 26, the size of the cooking utensil 100, and the processing difficulty; this application does not impose any limitations on this.

[0153] The exhaust area of ​​the first exhaust channel 22 is less than or equal to 10 mm^2, which can, to a certain extent, ensure that the amount of airflow discharged (loss) is less than the amount of airflow generated when the pressure relief valve 18 is depressurized, thereby ensuring that the cooking appliance 100 can still perform pressurized cooking smoothly after the pressure relief valve 18 is depressurized.

[0154] In some embodiments, the control method includes:

[0155] During the pressure relief and venting phase, the cooking appliance 100 is controlled to heat up or stop heating.

[0156] Therefore, the working modes of the cooking appliance 100 can be flexibly configured.

[0157] Specifically, in one embodiment, during the pressure relief and venting phase, the control device 12 can control the cooking appliance 100 to heat. The cooking appliance 100 includes a heating element 14, and the control device 12 can be electrically connected to the heating element 14. During the pressure relief and venting phase, the control device 12 can control the heating element 14 to operate and heat the first cooking chamber 16. Optionally, the heating power of the heating element 14 can be less than the heating power during the pressurized cooking phase. Heating during the pressure relief and venting phase allows the cooking appliance 100 to operate under a pressure lower than that during the pressurized cooking phase, thereby enabling more cooking modes for the food.

[0158] In one embodiment, during the pressure relief and venting phase, the control device 12 can control the cooking appliance 100 to stop heating. The cooking appliance 100 includes a heating element 14, and the control device 12 can be electrically connected to the heating element 14. During the pressure relief and venting phase, the control device 12 can control the heating element 14 to shut off to stop heating the first cooking chamber 16. Stopping heating during the pressure relief and venting phase helps to reduce the duration of the pressure relief and venting phase, allowing the cooking appliance 100 to proceed to the pressure-free cooking phase more quickly.

[0159] In some embodiments, the control method includes:

[0160] Before the cooking appliance 100 enters the pressurized cooking stage, the cooking appliance 100 is controlled to heat at maximum power.

[0161] This reduces cooking time and improves the user experience.

[0162] Specifically, in one embodiment, when the cooking appliance 100 is in use, the user can pour water into the first cooking chamber 16 to cook the food. Before the cooking appliance 100 enters the pressurized cooking stage, the control device 12 can control the heating component 14 to operate at maximum power to heat the first cooking chamber 16, causing the water in the first cooking chamber 16 to boil quickly and pressurize the first cooking chamber 16, thereby reducing cooking time and improving the user experience. Optionally, the maximum power can be the rated power of the heating component 14. The heating component 14 may include, but is not limited to, a heating plate and a heating element.

[0163] A control device 12 for a cooking appliance 100 according to an embodiment of this application includes a memory 60 and a processor 62. The memory 60 stores a computer program, and when the computer program is executed by the processor 62, it implements the steps of the control method of any of the above embodiments.

[0164] A cooking appliance 100 according to an embodiment of this application includes the control device 12 described in the above embodiment.

[0165] Optionally, referring to Figure 3, the cooking appliance 100 includes a heating component 14, a first driving component 30, a second driving component 34, and a trigger component 58. The control device 12 can be electrically connected to the heating component 14, the first driving component 30, the second driving component 34, and the trigger component 58, and can control the overall operation of the cooking appliance 100.

[0166] This application provides a non-volatile computer-readable storage medium storing a computer program, which, when executed by a processor 62, implements the steps of the control method described in any of the above embodiments.

[0167] For example, the control methods implemented when a computer program is executed by processor 62 include:

[0168] 01, Control the cooking appliance 100 to heat during the pressurized cooking stage;

[0169] 03. After the pressurized cooking stage is completed, the cooking appliance 100 is controlled to enter the depressurization and venting stage;

[0170] 05. After the pressure relief and venting stage is completed, control the cooking appliance 100 to switch to the pressureless cooking stage for heating.

[0171] It should be noted that the above explanation of the implementation method and its beneficial effects also applies to the control device 12, cooking appliance 100 and computer-readable storage medium of this embodiment. To avoid redundancy, they will not be repeated here.

[0172] In related technologies, pressure cookers have the function of pressureless cooking. Most pressure cookers achieve pressureless cooking by separating the plug of the exhaust valve from the exhaust pipe opening. The gas generated during cooking is discharged from the exhaust pipe opening. However, due to the small straight hole of the exhaust pipe opening, the exhaust volume is insufficient, which affects the cooking speed and results in a long cooking time.

[0173] Referring to Figures 10 and 11, a cooking device 200 according to an embodiment of this application includes a lid assembly 101, a second pot body 360, and a sealing assembly 400. The lid assembly 101 includes a second lid 110 and an exhaust valve 300. The second lid 110 has a first exhaust hole 120 and a second exhaust hole 220. The exhaust valve 300 is connected to the second lid 110 and seals the first exhaust hole 120. The second pot body 360 is connected to the second lid 110. A second cooking cavity 380 is formed within the second pot body 360. The second lid 110 covers the second cooking cavity 380. The sealing assembly 400 includes a driving member 420 and a movable member 440. The driving member 420 is configured to drive the movable member 440 to open or close the second exhaust hole 220, wherein the exhaust area of ​​the second exhaust hole 220 is greater than or equal to 30 mm² (square millimeters).

[0174] In the cooking device 200 described above, by adding a second vent 220 to the second pot lid 110, the vent area of ​​the second vent 220 is greater than or equal to 30 mm^2. The driving member 420 can drive the movable member 440 to open or close the second vent 220. When the cooking device 200 needs to perform pressureless cooking, the driving member 420 drives the movable member 440 to open the second vent 220, so that the second cooking chamber 380 is connected to the outside of the cooking device 200 through the second vent 220, thereby increasing the vent volume and avoiding the decrease in cooking speed and increase in cooking time due to insufficient vent volume of the vent valve 300.

[0175] Specifically, in the embodiment shown in FIG10, the cooking device 200 may include a pressure cooker. The cooking device 200 may have pressure cooking function and pressureless cooking function. The lid assembly 101 may be disposed above the second pot body 360. The height direction of the cooking device 200 may be represented by H. Along the H direction, the second pot lid 110 may have a first vent 120 and a second vent 220. The first vent 120 and the second vent 220 may be disposed at different positions on the second pot lid 110. The vent valve 300 may be connected to the second pot lid 110 and may seal the first vent 120. A second cooking cavity 380 may be formed inside the second pot body 360. The second pot body 360 may be connected to the second pot lid 110, and the second pot lid 110 may cover the second cooking cavity 380, so that food can be placed in the second cooking cavity 380 for cooking.

[0176] The drive unit 420 can be a screw motor or a push rod motor.

[0177] In one embodiment, the screw motor includes a screw motor body and a screw. Optionally, the movable member 440 may be the screw. Optionally, the movable member 440 may be a component connected to the screw. The screw motor can drive the movable member 440 to move forward and backward in a rotational manner, and the direction of rotation determines whether the movable member 440 moves forward or backward relative to the screw motor.

[0178] In one embodiment, the push rod motor includes a push rod motor body and a push rod. Optionally, the movable member 440 can be the push rod. Optionally, the movable member 440 can be a component connected to the push rod. The push rod motor can drive the movable member 440 to move forward and backward in a linear motion. The drive member 420 can be connected to the second pot lid 110. The drive member 420 can be fixedly connected to the second pot lid 110. In one embodiment, the drive member 420 can drive the movable member 440 in the H direction to close the second vent 220, thereby enabling the cooking device 200 to perform pressurized cooking. In one embodiment, the drive member 420 can drive the movable member 440 in the H direction to open the second vent 220, thereby enabling the cooking device 200 to perform pressureless cooking. In other words, when the cooking device 200 needs to perform pressureless cooking, the drive member 420 can drive the movable member 440 to open the second exhaust port 220, so that the second cooking chamber 380 is connected to the outside of the cooking device 200 through the second exhaust port 220, thereby increasing the exhaust volume and avoiding the decrease in cooking speed and increase in cooking time due to insufficient exhaust volume of the exhaust valve 300.

[0179] It should be noted that, in one embodiment, when the cooking device 200 is in pressureless cooking, the pressure inside the second cooking chamber 380 can be detected by the detection device to be below 4 kPa. At this time, the movable component 440 can open the second vent 220, and the gas inside the second cooking chamber 380 can be discharged from the second vent 220. Optionally, the drive component 420 can also be connected to the exhaust valve 300, and the drive component 420 can drive the exhaust valve 300 to open the first vent 120, so that the gas inside the second cooking chamber 380 can also be discharged from the first vent 120. In one embodiment, when the cooking device 200 is in pressurized cooking, the movable component 440 can close the second vent 220, and the gas inside the second cooking chamber 380 can be discharged from the first vent 120.

[0180] In addition, when the cooking device 200 is performing pressurized cooking, the drive member 420 can drive the movable member 440 to seal the second exhaust port 220, and the pressure in the second cooking chamber 380 rises. The locking force of the drive member 420 to lock the movable member 440 can be greater than or equal to the pressure of the air pressure in the second cooking chamber 380 located at the end of the movable member 440, thereby making the movable member 440 seal the second exhaust port 220 and preventing the movable member 440 from being pushed.

[0181] The exhaust area of ​​the second exhaust port 220 being greater than or equal to 30 mm² (square millimeters) can, to a certain extent, ensure that the exhaust area of ​​the second exhaust port 220 meets the relevant exhaust velocity design. Specifically, in one embodiment, the second exhaust port 220 is a cylindrical hole, and the exhaust area of ​​the cylindrical hole is the area of ​​the base surface of the cylinder. In another embodiment, the second exhaust port 220 is a prism-shaped hole, and the exhaust area of ​​the prism-shaped hole is the area of ​​the base surface of the prism. The base surface of the prism includes, but is not limited to, triangles, quadrilaterals, pentagons, or other polygons. The prism can include right prisms and oblique prisms.

[0182] Optionally, for other regular or irregular shapes of the second exhaust port 220, the exhaust area of ​​the second exhaust port 220 can be the area of ​​a planar shape obtained by a cross section perpendicular to the axis of the second exhaust port 220. When there are multiple areas of the obtained planar shape, the minimum area of ​​the planar shape is greater than or equal to 30 mm^2.

[0183] The exhaust area of ​​the second exhaust port 220 is S2, which is greater than or equal to 30 mm², i.e., S2 ≥ 30 mm². In some examples, S2 = 30 mm², 35 mm², 40 mm², 45 mm², 50 mm², or other values ​​≥ 30 mm². The upper limit of S2 can be determined based on the spatial configuration of the second lid 110 and the size of the cooking device 200, and this application does not limit it in this regard.

[0184] In some embodiments, the exhaust area of ​​the second exhaust port 220 is larger than the exhaust area of ​​the first exhaust port 120.

[0185] In this way, cooking equipment 200 can smoothly perform pressureless cooking.

[0186] Specifically, the exhaust valve 300 functions as a pressure limiting device. When the pressure inside the second cooking chamber 380 is less than the pressure limiting pressure of the exhaust valve 300, the exhaust valve 300 can seal the first exhaust port 120 under the action of gravity, preventing the airflow generated inside the second cooking chamber 380 from escaping through the first exhaust port 120. As cooking time progresses, the air pressure generated inside the second cooking chamber 380 increases. When the pressure inside the second cooking chamber 380 is greater than or equal to the pressure limiting pressure of the exhaust valve 300, the exhaust valve 300 is pushed up by the air pressure inside the second cooking chamber 380, allowing the airflow inside the second cooking chamber 380 to escape through the first exhaust port 120. In one example, the pressure limiting pressure of the exhaust valve 300 can be 70 kPa.

[0187] The exhaust area of ​​the second exhaust port 220 is larger than that of the first exhaust port 120. After the driving member 420 drives the movable member 440 to open the second exhaust port 220, the exhaust area of ​​the second exhaust port 220 is larger than that of the first exhaust port 120, so that the amount of airflow discharged (loss) generated by the cooking device 200 during the pressureless cooking process is greater than the amount of airflow generated, thereby enabling the cooking device 200 to carry out pressureless cooking smoothly.

[0188] In some embodiments, the exhaust area of ​​the first exhaust port 120 is less than or equal to 10 mm^2.

[0189] In this way, cooking equipment 200 can be able to perform pressurized cooking smoothly to a certain extent.

[0190] Specifically, in one embodiment, the first exhaust port 120 is a cylindrical port, and the exhaust area of ​​the cylindrical port is the area of ​​the base of the cylinder. In another embodiment, the first exhaust port 120 is a prism-shaped port, and the exhaust area of ​​the prism-shaped port is the area of ​​the base of the prism. The base of the prism includes, but is not limited to, triangles, quadrilaterals, pentagons, or other polygons. The prism may include right prisms and oblique prisms.

[0191] Optionally, for other regular or irregular shapes of the first exhaust hole 120, the exhaust area of ​​the first exhaust hole 120 can be the area of ​​a planar shape obtained by a cross section perpendicular to the axis of the first exhaust hole 120. When there are multiple areas of the obtained planar shape, the maximum area of ​​the planar shape is less than or equal to 10 mm^2.

[0192] The exhaust area of ​​the first exhaust port 120 is S1, which is less than or equal to 10 mm², i.e., S1 ≤ 10 mm². In some examples, S1 = 10 mm², 8 mm², 6 mm², 5 mm², or other values ​​≤ 10 mm². The lower limit of S1 can be determined based on the spatial configuration of the second lid 110, the size of the cooking equipment 200, and the processing difficulty; this application does not impose any limitations on this.

[0193] When the cooking device 200 is performing pressurized cooking, the drive component 420 can drive the movable component 440 to close the second exhaust port 22014. The exhaust valve 300 can function as a pressure limiting device. Specifically, when the pressure inside the second cooking chamber 380 is less than the pressure limiting pressure of the exhaust valve 300, the exhaust valve 300 can seal the first exhaust port 120 under the action of gravity, and the airflow generated inside the second cooking chamber 380 cannot be discharged through the first exhaust port 120. As the cooking time progresses, the air pressure generated inside the second cooking chamber 380 increases. When the pressure inside the second cooking chamber 380 is greater than or equal to the pressure limiting pressure of the exhaust valve 300, the exhaust valve 300 is pushed up by the air pressure inside the second cooking chamber 380, so that the airflow inside the second cooking chamber 380 can be discharged through the first exhaust port 120. In one example, the pressure limiting pressure of the exhaust valve 300 can be 70 kPa.

[0194] The exhaust area of ​​the first exhaust port 120 is less than or equal to 10 mm^2, which can, to a certain extent, ensure that the amount of airflow discharged (loss) is less than the amount of airflow generated when the exhaust valve 300 is depressurized, thereby ensuring that the cooking device 200 can still perform pressurized cooking smoothly after the exhaust valve 300 is depressurized.

[0195] In some embodiments, the self-locking force of the drive member 420 is greater than the pressure exerted by the air pressure inside the second cooking cavity 380 on the end of the movable member 440.

[0196] In this way, the movable part 440 can withstand pressure, ensuring that the cooking equipment operates in pressurized mode.

[0197] Specifically, when the cooking device 200 is performing pressurized cooking, the movable part 440 needs to close the second exhaust port 220. The self-locking force of the driving part 420 is greater than the pressure exerted by the air pressure inside the second cooking chamber 380 on the end of the movable part 440, so that the movable part 440 can withstand the pressure during pressurized cooking. This avoids, to a certain extent, the movable part 440 being forced open by the pressure inside the second cooking chamber 380, which would cause the pressure inside the second cooking chamber 380 to drop, thus ensuring the smooth progress of pressurized cooking to a certain extent.

[0198] In some embodiments, the sealing assembly includes a first seal 190 disposed on the wall of the second vent 220, wherein when the movable member 440 closes the second vent 220, the first seal 190 is clamped between the movable member 440 and the wall of the second vent 220.

[0199] This improves the sealing performance of the second vent 220.

[0200] Specifically, when the movable part 440 closes the second vent hole 220, the first seal 190 is clamped between the movable part 440 and the hole wall of the second vent hole 220, thereby improving the sealing performance between the movable part 440 and the hole wall of the second vent hole 220, thus improving the sealing performance of the second vent hole 220.

[0201] Optionally, the first sealing element 190 can be a sealing ring. The two ends of the sealing ring along the axial direction of the second vent 220 can extend away from the second vent 220 and fit against the surface of the second pot lid 110, thereby preventing the first sealing element 190 from shifting and affecting the sealing performance of the second vent 220.

[0202] Referring to Figures 10, 11, and 12, in some embodiments, the second pot lid 110 includes an inner lid 140 and a cover plate 160, and the sealing assembly 400 includes a second seal 201. The second pot lid 110 has a mounting hole 180 extending through the inner lid 140 and the cover plate 160. The second seal 201 is disposed in the mounting hole 180. The second seal 201 seals the inner lid 140 and the cover plate 160. The second seal 201 has a second vent 220.

[0203] Thus, the second vent hole 220 can be provided through the second sealing member 201, so that the second sealing member 201 seals the inner cover 140, the cover plate 160 and the movable member 440, thereby sealing the second vent hole 220.

[0204] Specifically, in the embodiment shown in FIG12, the inner cover 140 and the cover plate 160 may be disposed at the bottom of the second pot lid 110, with the inner cover 140 positioned above the cover plate 160. In one embodiment, the second pot lid 110 may have a mounting hole 180 extending through the inner cover 140 and the cover plate 160. The second seal 201 may include a sealing ring. The second seal 201 has a second vent 220.

[0205] In one embodiment, when the movable member 440 closes the second vent 220, the second seal 201 can seal the inner cover 140, the cover plate 160 and the movable member 440, thereby sealing the second vent 220.

[0206] Referring to Figure 10, in some embodiments, the cooking apparatus 200 includes an exhaust pipe 340. The exhaust pipe 340 passes through the second pot lid 110. An exhaust valve 300 is movably mounted on the end of the exhaust pipe 340 away from the second cooking chamber 380. The exhaust pipe 340 is provided with a first exhaust port 120.

[0207] In this way, the cooking equipment 200 can be depressurized through the exhaust valve 300 to ensure the safe use of the cooking equipment 200.

[0208] Specifically, the exhaust valve 300 can be located near the top of the second pot lid 110. The exhaust pipe 340 can pass through the second pot lid 110, and the end of the exhaust pipe 340 away from the second cooking cavity 380 can protrude from the top of the second pot lid 110. The exhaust valve 300 can be movably installed at the end of the exhaust pipe 340 away from the second cooking cavity 380. The exhaust pipe 340 is provided with a first exhaust hole 120.

[0209] When the pressure inside the second cooking chamber 380 is less than the pressure limit of the exhaust valve 300, the exhaust valve 300 can seal the first exhaust port 120 under the action of gravity, preventing the airflow generated inside the second cooking chamber 380 from being discharged through the first exhaust port 120. As cooking time progresses, the air pressure generated inside the second cooking chamber 380 increases. When the pressure inside the second cooking chamber 380 is greater than or equal to the pressure limit of the exhaust valve 300, the exhaust valve 300 is pushed up by the air pressure inside the second cooking chamber 380, allowing the airflow inside the second cooking chamber 380 to be discharged through the first exhaust port 120, thus ensuring the safe use of the cooking device 200 in pressurized mode. In one example, the pressure limit of the exhaust valve 300 can be 70 kPa.

[0210] It should be noted that an exhaust drive mechanism may be provided on the cooking device 200 near the exhaust valve 300. This exhaust drive mechanism controls the exhaust valve 300 to release pressure and exhaust air when the air pressure in the second cooking chamber 38026 reaches a predetermined pressure, causing the air pressure in the second cooking chamber 380 to be lower than the predetermined pressure. The exhaust drive mechanism can then drive the exhaust valve 300 to seal the first exhaust port 120. In one example, when the cooking device 200 is performing pressurized cooking, the exhaust valve 300 may reciprocate at the end of the first exhaust port 120 away from the second cooking chamber 380. Optionally, the predetermined pressure is lower than the pressure limiting pressure of the exhaust valve 22. In one example, the predetermined pressure is 50 kPa, and the pressure limiting pressure of the exhaust valve 22 is 70 kPa.

[0211] Referring to Figures 14 to 17, in some embodiments, the movable member 440 includes a first movable segment 460 and a second movable segment 470. The first movable segment 460 connects the second movable segment 470 and the drive member 420. The diameter of the first movable segment 460 is larger than the diameter of the second movable segment 470. The second vent 220 includes a first hole 240 and a second hole 260. When the movable member 440 closes the second vent 220, the first movable segment 460 passes through the first hole 240, and the second movable segment 470 passes through and seals the second hole 260.

[0212] When the movable part 440 opens the second vent 220, the second movable section 470 opens the second hole 260 so that the second hole 260 communicates with the outside of the cooking device 200 through the first hole 240.

[0213] In this way, the second exhaust port 220 can be closed by using movable sections of different diameters.

[0214] Specifically, in the embodiments shown in Figures 14 to 17, the first movable segment 460 may be cylindrical. The second movable segment 470 may also be cylindrical. One end of the first movable segment 460 may be connected to the drive member 420, and the other end may be connected to the second movable segment 470. The diameter of the first movable segment 460 may be represented by D1, and the diameter of the second movable segment 470 may be represented by D2. The diameter D1 of the first movable segment 460 is larger than the diameter D2 of the second movable segment 470.

[0215] In Figures 14 to 17, the second hole 260 is located close to the second cooking chamber 380, and the first hole 240 is located above the second hole 260. The diameter of the first hole 240 can be represented by d1, and the diameter of the second hole 260 can be represented by d2. The diameter d1 of the first hole 240 is larger than the diameter d2 of the second hole 260. In one embodiment, when the movable member 440 closes the second vent 220, the first movable section 460 passes through the first hole 240, which can communicate with the outside of the cooking device 200, and the second movable section 470 passes through and seals the second hole 260, thereby allowing the cooking device 200 to perform pressurized cooking.

[0216] In one embodiment, when the movable member 440 opens the second vent 220, the second movable section 470 opens the second hole 260 so that the second hole 260 communicates with the outside of the cooking device 200 through the first hole 240, thereby venting the gas in the second cooking chamber 380, so that the cooking device 200 can perform pressureless cooking.

[0217] Referring to Figures 14 to 19, in some embodiments, the second pot lid 110 includes an inner lid 140 and a cover plate 160. The inner lid 140 is provided with a first hole 240, and the cover plate 160 is provided with a second hole 260. The sealing assembly includes a third seal 540. When the second movable section 470 passes through and seals the second hole 260, the third seal 540 seals the connection between the first movable section 460 and the cover plate 160.

[0218] Thus, the sealing performance of the second hole 260 can be improved when the cooking device 200 is performing pressurized cooking.

[0219] Specifically, the third seal 540 may include a sealing ring. The third seal 540 may be annular. A portion of the cross-section of the third seal 540 may be L-shaped. In one embodiment, when the cooking appliance 200 is performing pressurized cooking, the third seal 540 may seal the connection between the first movable section 460 and the cover plate 160. Specifically, the end face of the first movable section 460 may press against a portion of the third seal 540 located between the end face of the first movable section 460 and the cover plate 160, thereby improving the sealing of the second hole 260.

[0220] In some embodiments, a third seal 540 is provided at least on the end face where the first movable segment 460 connects to the second movable segment 470 and surrounds the second movable segment 470.

[0221] This can further improve the sealing performance of the second vent 220.

[0222] Specifically, the diameter of the first movable segment 460 is larger than the diameter of the second movable segment 470, such that one end of the first movable segment 460 connecting to the second movable segment 470 forms an end face, and the third seal 540 includes a first portion disposed on the end face. The first portion surrounds the second movable segment 470.

[0223] When the movable part 440 closes the second vent 220, the first part is clamped between the end face and the upper surface of the cover plate 160. The first part surrounds the second movable section 470, so that the third seal 540 can seal the end face of the first movable section 460 and the cover plate 160 from the circumference of the second movable section 470, thereby further improving the sealing performance of the second vent 220.

[0224] Optionally, the third seal 540 also includes a second portion that fits against the circumferential side of the first movable segment 460, with the first portion connecting to the second portion, thereby allowing the third seal 540 to be more securely mounted on the first movable segment 460.

[0225] Referring to Figures 16 and 17, in some embodiments, a first thread is provided on the circumferential side of the second movable segment 470, and a second thread is provided on the hole wall of the second hole 260. When the movable member 440 closes the second vent hole 220, the first thread and the second thread are connected in a cooperating manner, and when the movable member 440 opens the second vent hole 220, the first thread and the second thread are separated.

[0226] Therefore, the second vent 220 can be closed by means of a threaded connection.

[0227] Specifically, the drive component 420 may include a screw motor, which drives the movable component 440 to move forward and backward in a rotating manner. The direction of rotation determines whether the movable component 440 moves forward or backward relative to the screw motor. Initially, when the movable component 440 has the second vent hole 220 open, the drive component 420 can drive the movable component 440 to rotate in a first direction, causing the movable component 440 to move forward and extend into the second hole 260. The first thread on the second movable section 470 engages with the second thread on the wall of the second hole 260. When the movable component 440 is screwed into place, the first thread and the second thread engage to close the second vent hole 220.

[0228] When the second vent 220 is opened, the drive member 420 can drive the movable member 440 to rotate in the second direction, causing the movable member 440 to retract. The second movable segment 470 withdraws from the second hole 260, and the portion where the first thread and the second thread are connected gradually decreases until the first thread and the second thread separate, and the second vent 220 is opened. The second direction is opposite to the first direction.

[0229] Referring to Figures 16 and 17, in some embodiments, the surface of the cover plate 160 facing the inner cover 140 is provided with a boss 610, and the second hole 260 passes through the boss 610.

[0230] Therefore, the boss 610 can make the threaded engagement area thicker, further improving the sealing performance of the second vent 220.

[0231] Specifically, in Figure 16, the boss 610 protrudes from the upper surface of the cover plate 160, and the second hole 260 penetrates the boss 610, making the length of the second hole 260 larger. The length of the hole wall of the second hole 260, which can be set with the second thread, is also larger, so that a longer second thread can be set. In conjunction with the first thread, the thread engagement position of the first thread and the second thread can be thicker, thereby improving the sealing performance of the second vent hole 220.

[0232] Optionally, the boss 610 and the cover plate 160 are connected as an integral structure. Alternatively, the boss 610 and the cover plate 160 can be separate structures, and the boss 610 can be fixed to the cover plate 160 by welding or other means.

[0233] Referring to Figures 14 to 17, in some embodiments, the sealing assembly includes a fourth seal 500, an inner cover 140 and a cover plate 160 spaced apart, the fourth seal 500 being located between the inner cover 140 and the cover plate 160, and the fourth seal 500 connecting the inner cover 140 and the cover plate 160 along the circumferential direction of the second vent 220.

[0234] This improves the sealing performance of the lid assembly 101.

[0235] Specifically, the second vent 220 has a first hole 240 and a second hole 260 formed in the inner cover 140 and the cover plate 160, respectively. The fourth sealing member 500 is located between the inner cover 140 and the cover plate 160. The fourth sealing member 500 connects the inner cover 140 and the cover plate 160 in the circumferential direction of the second vent 220. Thus, the fourth sealing member 500 can surround the space between the inner cover 140 and the cover plate 160 to form an venting space 520 that connects the first hole 240 and the second hole 260. When the movable member 440 opens the second vent 220, gas can enter the first hole 240 through the second hole 260 and the venting space 520, and exit from the first hole 240 to the outside of the lid assembly 101. This prevents airflow from flowing through the gap between the inner cover 140 and the cover plate 160 to other parts of the lid assembly 101, thus improving the sealing performance of the lid assembly 101.

[0236] Referring to Figures 18 and 19, in some embodiments, at least a portion of the second hole 260 is a tapered hole that gradually expands in a direction away from the second pot body 360, and the end of the second movable segment 470 away from the first movable segment 460 is a tapered portion that gradually expands in a direction away from the second pot body 360. The tapered portion is adapted to the tapered hole, and the drive member 420 is configured to drive the movable member 440 to move to different positions relative to the second pot lid 110 to change the opening area of ​​the second hole 260.

[0237] Therefore, the opening area of ​​the second hole 260 can be adjusted.

[0238] Specifically, the movable member 440 can move along the axial direction of the second hole 260. When the movable member 440 closes the second vent hole 220, the length of the portion of the movable member 440 extending into the second hole 260 is at its longest. When the second hole 260 is opened, the driving member 420 can drive the movable member 440 (in a rotational or linear motion) to move away from the second pot body 360, thereby opening the second hole 260. The opening area of ​​the second hole 260 is related to the lifting position of the movable member 440.

[0239] Since at least a portion of the second hole 260 is a tapered hole that gradually expands in the direction away from the second pot body 360, and the end of the second movable section 470 away from the first movable section 460 is a tapered portion that gradually expands in the direction away from the second pot body 360, the tapered portion is adapted to the tapered hole. When the movable member 440 is raised and lowered to different positions, the opening area of ​​the second hole 260 is different, thus making the opening area of ​​the second hole 260 adjustable. The space between the second movable section 470 and the hole wall of the second hole 260 can form an exhaust channel, i.e., the exhaust channel is adjustable.

[0240] Referring to Figures 18 and 19, in some embodiments, the second vent 220 includes a first opening 570 and a second opening 590. The first opening 570 faces the second cooking cavity 380, and the second opening 590 faces away from the second cooking cavity 380. When the movable member 440 closes the second vent 220, the length of the movable member 440 extending from the first opening 570 toward the second cooking cavity 380 is greater than 1 mm. And / or, when the movable member 440 opens the second vent 220, the distance between the movable member 440 and the second opening 590 is greater than 3 mm.

[0241] This ensures the reliability of the seal and / or the unobstructed flow of the second vent 220.

[0242] Specifically, in one embodiment, the movable member 440 may be cylindrical. Referring to Figures 10 to 19, when the movable member 440 seals the second vent 220, the length of the movable member 440 extending from the first opening 570 toward the second cooking cavity 380 is greater than 1 mm, and the length of the movable member 440 extending into the second cooking cavity 380 is relatively large, thereby ensuring the reliability of the seal.

[0243] In some examples, H1 = 1 mm, 1.2 mm, 1.5 mm, 2.0 mm, 2.5 mm, or other values ​​greater than 1 mm. The upper limit of H1 can be determined based on factors such as the space within the second cooking cavity 380.

[0244] When the movable part 440 opens the second vent 220, the distance between the movable part 440 and the second opening 590 is greater than 3mm, and the movable part 440 is far away from the second vent 220, thus ensuring the unobstructed flow of the second vent 220.

[0245] In some examples, H2 = 3mm, 3.2mm, 3.5mm, 4.0mm, 4.5mm, or other values ​​greater than 3mm. The upper limit of H2 can be determined based on factors such as the space within the lid assembly 101.

[0246] In some embodiments, the drive member 420 is configured to drive the movable member 440 to different positions relative to the second pot lid 110 to change the opening area of ​​the second vent 220.

[0247] Therefore, the opening area of ​​the second exhaust port 220 can be changed to enable more cooking modes of the cooking device 200.

[0248] Specifically, in one embodiment, the movable member 440 can be of variable diameter, and the driving member 420 can drive the movable member 440 to rise and fall to a specified height to achieve different opening areas of the second exhaust port 220, thereby realizing the adjustable exhaust channel.

[0249] Referring to Figures 18 and 19, the second movable segment 470 has a variable diameter, and the second hole 260 also has a variable diameter, with the shapes of the second movable segment 470 and the second hole 260 being adapted to each other. In Figures 18 and 19, the end of the second movable segment 470 away from the first movable segment 460 is a tapered portion that gradually expands in the direction away from the second pot body 360, corresponding to the tapered hole portion of the second hole 260. As the movable part 440 rises and falls to different positions, the opening area of ​​the second hole 260 varies, thus achieving an adjustable exhaust channel. Figure 18 shows the cooking device 200 operating in pressurized mode, with the second exhaust port 220 closed. Figure 19 shows the second exhaust port 220 open, indicating that the cooking device 200 can operate in unpressurized mode.

[0250] Referring to Figures 20 and 21, the movable component 440 includes a connecting portion 560 and a closing portion 580. The connecting portion 560 connects to the closing portion 580. The driving component 420 drives the connecting portion 560 along a first direction to cause the closing portion 580 to close the second vent 220, thus preventing the second cooking cavity 380 from communicating with the outside of the second cooking cavity 380, and also drives the closing portion 580 to move to open the second vent 220, thus communicating the second cooking cavity 380 with the outside of the second cooking cavity 380.

[0251] Specifically, in the embodiment shown in FIG21, the drive member 420 may include a push rod motor. The connecting portion 560 may serve as a push rod of the push rod motor, or a component connecting the push rod of the push rod motor. Optionally, the connecting portion 560 may be columnar.

[0252] The closing part 580 may be plate-shaped. The connecting part 560 may be fixedly connected to the closing part 580. The first direction is the left-right direction as shown in Figures 20 and 21. In one embodiment, when the cooking device 200 needs to perform pressurized cooking, the driving member 420 may drive the connecting part 560 to the left to move the closing part 580 and close the second vent 220, so that the second cooking cavity 380 is not in communication with the outside of the second cooking cavity 380. In one embodiment, when the cooking device 200 needs to perform unpressurized cooking, the driving member 420 may drive the connecting part 560 to the right to move the closing part 580 to open the second vent 220 and make the second cooking cavity 380 communicate with the outside of the second cooking cavity 380.

[0253] When the closing part 580 moves from the leftmost to the right or from the rightmost to the left at different distances, the closing part 580 can be in different positions relative to the second pot lid 110, thereby changing the opening area of ​​the second exhaust port 220 and realizing the adjustment of the exhaust channel.

[0254] Referring to Figures 20 and 21, in some embodiments, the sealing assembly 400 includes a fifth seal 600. When the movable member 440 closes the second vent 220, the fifth seal 600 seals the connection between the closing part 580 and the second pot lid 110.

[0255] This improves the sealing performance of the second vent 220.

[0256] Specifically, the fifth seal 600 may include a sealing ring. The fifth seal 600 may be annular. Two fifth seals 600 may be provided, respectively disposed on the top and bottom surfaces of the closing portion 580.

[0257] Referring to Figure 12, in some embodiments, the second lid 110 has a recess 280. A drive member 420 is disposed in the recess 280. The cooking device 200 includes a cover plate 620. The cover plate 620 covers the recess 280. The cover plate 620 has a third vent 640. The third vent 640 communicates with the recess 280.

[0258] Thus, when the cooking device 200 is performing pressureless cooking, the gas in the second cooking chamber 380 can be discharged to the outside of the cooking device 200 through the third exhaust port 640. At the same time, the drive member 420 is set in the groove 280 to make the structure compact.

[0259] Specifically, the top of the second lid 110 may have a groove 280. The bottom wall of the groove 280 may have a mounting hole 180. The second sealing member 201 may be disposed within the mounting hole 180. The second sealing member 201 may have a second vent 220. The driving member 420 may be disposed within the groove 280. In one embodiment, when the cooking device 200 is performing pressureless cooking, the gas in the second cooking chamber 380 can be discharged into the groove 280 through the second vent 220, and finally discharged to the outside of the cooking device 200 through the third vent 640. The driving member 420 is disposed within the groove 280 and then closed by the cover plate 620, thereby avoiding outward protrusion of the structure and making the structure compact.

[0260] Those skilled in the art will understand that embodiments of this application can be provided as methods, apparatus (systems), or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0261] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0262] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, combinations, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A control method of a cooking appliance, characterized by, The control method comprises: controlling the cooking appliance to heat in a pressure cooking phase; after the pressure cooking phase, controlling the cooking appliance to perform a pressure relief exhaust phase; after the pressure relief exhaust phase, controlling the cooking appliance to switch to a non-pressure cooking phase to heat.

2. The control method of a cooking appliance according to claim 1, characterized in that, The cooking appliance comprises a pressure limiting valve, a switching piece, a first exhaust passage and a second exhaust passage, the pressure limiting valve is used to open and close the first exhaust passage, the switching piece is used to open and close the second exhaust passage, and an exhaust area of the second exhaust passage is greater than an exhaust area of the first exhaust passage; controlling the cooking appliance to heat in a pressure cooking phase comprises: controlling the pressure limiting valve to close the first exhaust passage and the switching piece to close the second exhaust passage to make the cooking appliance in the pressure cooking phase; after the pressure relief exhaust phase, controlling the cooking appliance to switch to a non-pressure cooking phase to heat comprises: after the pressure relief exhaust phase, controlling the pressure limiting valve to close the first exhaust passage and the switching piece to open the second exhaust passage to make the cooking appliance in the non-pressure cooking phase, or; after the pressure relief exhaust phase, controlling the pressure limiting valve to open the first exhaust passage and the switching piece to open the second exhaust passage to make the cooking appliance in the non-pressure cooking phase. 3.The control method of a cooking appliance according to claim 2, characterized in that, after the pressure cooking phase, controlling the cooking appliance to perform a pressure relief exhaust phase comprises: controlling the pressure limiting valve to open the first exhaust passage to perform the pressure relief exhaust phase, and / or, controlling the switching piece to open the second exhaust passage to perform the pressure relief exhaust phase.

4. The control method of a cooking appliance according to claim 2 or 3, characterized in that, The switching piece comprises a switching valve or a first float.

5. The control method of a cooking appliance according to claim 4, characterized in that, In the case that the switching piece comprises a switching valve, the cooking appliance comprises a second float, and the second float is used to indicate whether pressure is generated in a first cooking cavity of the cooking appliance.

6. The control method of a cooking appliance according to any one of claims 2-5, characterized in that, The pressure bearing pressure of the switching piece is greater than the pressure limiting pressure of the pressure limiting valve.

7. The control method of a cooking appliance according to any one of claims 1 to 6, characterized in that, The cooking appliance comprises a pressure detection assembly and a first cooking cavity, and the pressure detection assembly is used to detect pressure in the first cooking cavity. 8.The control method of a cooking appliance according to claim 7, characterized in that, The pressure detection assembly comprises a float assembly.

9. The control method of a cooking appliance according to any one of claims 2-6, characterized in that, The exhaust area of the second exhaust passage is greater than or equal to 30 mm^2.

10. The control method of a cooking appliance according to any one of claims 2-6, characterized in that, The exhaust area of the first exhaust passage is less than or equal to 10 mm^2.

11. The control method of a cooking appliance according to any one of claims 1-10, characterized in that, The control method comprises: in the pressure relief exhaust phase, controlling the cooking appliance to heat or stop heating.

12. The control method of a cooking appliance according to any one of claims 1-11, characterized in that, The control method comprises: before the cooking appliance enters the pressure cooking phase, controlling the cooking appliance to heat at a maximum power.

13. A control device of a cooking appliance, characterized in that, The control device comprises a memory and a processor, and the memory stores a computer program, and the computer program is executed by the processor to realize the steps of the control method in any one of claims 1-12.

14. A cooking appliance characterized by, The control device comprises the control device in claim 13.

15. A non-transitory computer readable storage medium, comprising: The non-volatile computer readable storage medium stores a computer program, and the computer program is executed by the processor to realize the steps of the control method in any one of claims 1-12.

16. A cooking apparatus, characterized by, The cooking device comprises: A pot cover assembly includes a second pot cover provided with a first exhaust hole and a second exhaust hole, and an exhaust valve connected to the second pot cover and sealing the first exhaust hole; A second pot body connected to the second pot cover, the second pot body being formed with a second cooking cavity covered by the second pot cover; A sealing assembly including a driving member and a movable member, the driving member being configured to drive the movable member to open or close the second exhaust hole; The exhaust area of the second exhaust hole is greater than or equal to 30 mm^2.

17. The cooking apparatus of claim 16, wherein, The exhaust area of the second exhaust hole is greater than the exhaust area of the first exhaust hole.

18. The cooking apparatus according to claim 16 or 17, characterized in that, The exhaust area of the first exhaust hole is less than or equal to 10 mm^2.

19. The cooking apparatus according to any one of claims 16-18, wherein, The self-locking force of the driving member is greater than the pressure of the gas pressure in the second cooking cavity acting on the end of the movable member.

20. The cooking apparatus according to any one of claims 16-19, wherein, The sealing assembly includes a first sealing member provided on the hole wall of the second exhaust hole, and the first sealing member is clamped between the movable member and the hole wall of the second exhaust hole when the movable member closes the second exhaust hole.

21. The cooking apparatus according to any one of claims 16-20, wherein, The second pot cover includes an inner cover and a cover plate, the sealing assembly includes a second sealing member, the second pot cover is formed with a mounting hole penetrating through the inner cover and the cover plate, the second sealing member is arranged in the mounting hole, the second sealing member sealingly connects the inner cover and the cover plate, and the second sealing member forms the second exhaust hole.

22. The cooking apparatus according to any one of claims 16-21, wherein, The movable member includes a first movable segment and a second movable segment, the first movable segment is connected to the second movable segment and the driving member, the diameter of the first movable segment is greater than the diameter of the second movable segment, and the second exhaust hole includes a first hole and a second hole; When the movable member closes the second exhaust hole, the first movable segment penetrates the first hole, and the second movable segment penetrates and seals the second hole; When the movable member opens the second exhaust hole, the second movable segment opens the second hole to make the second hole communicate with the outside of the cooking device through the first hole.

23. The cooking apparatus of claim 22, wherein, The second pot cover includes an inner cover and a cover plate, the inner cover is provided with the first hole, the cover plate is provided with the second hole, the sealing assembly includes a third sealing member, and the third sealing member sealingly connects the first movable segment and the cover plate when the second movable segment penetrates and seals the second hole.

24. The cooking apparatus of claim 23, wherein, The third sealing member is arranged on at least the end face of the first movable segment connected to the second movable segment and surrounds the second movable segment.

25. The cooking apparatus of claim 23, wherein, A first thread is arranged on the circumferential side surface of the second movable segment, a second thread is arranged on the hole wall of the second hole, the first thread and the second thread are cooperatively connected when the movable member closes the second exhaust hole, and the first thread and the second thread are separated when the movable member opens the second exhaust hole.

26. The cooking apparatus of claim 25, wherein, The surface of the cover plate facing the inner cover is provided with a boss, and the second hole penetrates through the boss.

27. The cooking apparatus of claim 21 or 23, wherein, The sealing assembly comprises a fourth sealing member, the inner cover and the cover plate are spaced apart, the fourth sealing member is located between the inner cover and the cover plate, and the fourth sealing member connects the inner cover and the cover plate along the circumferential direction of the second exhaust hole.

28. The cooking apparatus of any one of claims 22-26, wherein, At least a part of the second hole is a tapered hole with a shape gradually expanding away from the second pot body, an end of the second movable section away from the first movable section is a tapered section with a shape gradually expanding away from the second pot body, the tapered section is matched with the tapered hole, and the driving member is configured to drive the movable member to move to different positions relative to the second pot cover to change the opening area of the second hole.

29. The cooking device of claim 16, wherein, The second exhaust hole comprises a first opening and a second opening, the first opening faces the second cooking cavity, and the second opening faces away from the second cooking cavity, in a case where the movable member closes the second exhaust hole, the length of the movable member extending from the first opening to the second cooking cavity is greater than 1 mm, and / or, in a case where the movable member opens the second exhaust hole, the distance between the movable member and the second opening is greater than 3 mm.

30. The cooking apparatus of any of claims 16-29, wherein, The driving member is configured to drive the movable member to move to different positions relative to the second pot cover to change the opening area of the second exhaust hole.

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