Control method and control device of cooking utensil, cooking utensil and storage medium

Abstract

The invention discloses a control method and device of a cooking utensil, the cooking utensil and a storage medium. The control method of the cooking utensil comprises the steps that the cooking utensil is controlled to be heated in a pressure cooking stage; after the pressure cooking stage is finished, the cooking utensil is controlled to conduct a pressure relief and exhaust stage; and after the pressure relief and exhaust stage is finished, the cooking utensil is controlled to be switched to be heated in a non-pressure cooking stage. According to the cooking utensil, the pressure relief and exhaust stage can be carried out after the pressure cooking stage is finished, and the non-pressure cooking stage can be carried out after the pressure relief and exhaust stage is finished, so that pressure cooking can be switched to non-pressure cooking, and the cooking effect of the cooking utensil is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooking appliances, and in particular to a control method and control device of a cooking appliance, a cooking appliance and a storage medium. BACKGROUND

[0002] The pressure cooker in the related art cannot achieve boiling cooking in the pressure cooking stage, that is, the current pressure cooker cannot achieve both pressure cooking and non-pressure cooking in the process of one cooking, which makes the cooking function of the pressure cooker relatively single. SUMMARY

[0003] The present application provides a control method and control device of a cooking appliance, a cooking appliance and a storage medium to solve at least one of the above technical problems.

[0004] The control method of the cooking appliance provided by the present application comprises:

[0005] controlling the cooking appliance to heat in a pressure cooking stage;

[0006] controlling the cooking appliance to perform a pressure relief and exhaust stage after the pressure cooking stage ends;

[0007] controlling the cooking appliance to switch to heat in a non-pressure cooking stage after the pressure relief and exhaust stage ends.

[0008] The cooking appliance can perform a pressure relief and exhaust stage after the pressure cooking stage ends, and perform a non-pressure cooking stage after the pressure relief and exhaust stage ends, so that the cooking appliance can achieve switching from pressure cooking to non-pressure cooking, thereby improving the cooking effect of the cooking appliance.

[0009] In some embodiments, 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 the exhaust area of the second exhaust passage is greater than that of the first exhaust passage;

[0010] controlling the cooking appliance to heat in a pressure cooking stage comprises:

[0011] controlling the pressure limiting valve to close the first exhaust passage and the switching piece to close the second exhaust passage so that the cooking appliance is in the pressure cooking stage;

[0012] controlling the cooking appliance to switch to heat in a non-pressure cooking stage after the pressure relief and exhaust stage ends comprises:

[0013] after the pressure relief exhaust phase, controlling the pressure limiting valve to open the first exhaust passage and controlling the switching member to open the second exhaust passage to put the cooking appliance in a pressureless cooking phase.

[0014] after the pressure relief exhaust phase, controlling the pressure limiting valve to open the first exhaust passage and controlling the switching member to open the second exhaust passage to put the cooking appliance in a pressureless cooking phase.

[0015] In certain embodiments, after the pressure cooking phase, controlling the cooking appliance to perform a pressure relief exhaust phase comprises:

[0016] controlling the pressure limiting valve to open the first exhaust passage to perform a pressure relief exhaust phase, and / or, controlling the switching member to open the second exhaust passage to perform a pressure relief exhaust phase.

[0017] In certain embodiments, the switching member comprises a switching valve or a first float.

[0018] In certain embodiments, when the switching member comprises a switching valve, the cooking appliance comprises a second float for indicating whether the cooking cavity of the cooking appliance is under pressure.

[0019] In certain embodiments, the pressure bearing pressure of the switching member is greater than the pressure limiting pressure of the pressure limiting valve.

[0020] In certain embodiments, the cooking appliance comprises a pressure detection assembly for detecting the pressure in the cooking cavity.

[0021] In certain embodiments, the pressure detection assembly comprises a float assembly.

[0022] In certain embodiments, the exhaust area of the second exhaust passage is greater than or equal to 30mm^2.

[0023] In certain embodiments, the exhaust area of the first exhaust passage is less than or equal to 10mm^2.

[0024] In certain embodiments, the control method comprises:

[0025] In the pressure relief exhaust phase, controlling the cooking appliance to heat or stop heating.

[0026] In certain embodiments, the control method comprises:

[0027] Before the cooking appliance enters the pressure cooking phase, controlling the cooking appliance to heat at maximum power.

[0028] The control device of the cooking appliance in the embodiment of the present application comprises a memory and a processor, the memory stores a computer program, and the computer program is executed by the processor to realize the steps of the control method of any of the above embodiments.

[0029] The cooking appliance in the embodiment of the present application comprises the control device of any of the above embodiments.

[0030] The embodiment of the present application provides a non-volatile computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to realize the steps of the control method of any of the above embodiments.

[0031] The control device of the cooking appliance, the cooking appliance and the computer readable storage medium can perform a pressure relief exhaust stage after the end of the pressure cooking stage, and perform a pressureless cooking stage after the end of the pressure relief exhaust stage, so that the cooking appliance can realize the switching from pressure cooking to pressureless cooking, and improve the cooking effect of the cooking appliance.

[0032] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0034] Figure 1 The flow chart of the control method of the cooking appliance provided by the embodiment of the present application is shown in the figure.

[0035] Figure 2 The structure diagram of the cooking appliance provided by the embodiment of the present application is shown in the figure.

[0036] Figure 3 The module diagram of the cooking appliance provided by the embodiment of the present application is shown in the figure.

[0037] Figures 4 to 9 The partial structure diagram of the cooking appliance provided by the embodiment of the present application is shown in the figure.

[0038] Explanation of reference signs:

[0039] Cooking utensil 100, control device 12, heating assembly 14, cooking cavity 16, pressure limiting valve 18, switching piece 20, first exhaust passage 22, second exhaust passage 24, pot cover 26, pot body 28, first driving piece 30, first acting piece 32, second driving piece 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 passage 52, third main body 54, third limiting part 56, triggering piece 58, memory 60, processor 62. DETAILED DESCRIPTION

[0040] Embodiments of the present application are described in detail below with reference to several drawings. The embodiments of the present application described below are exemplary and are merely intended to explain the present application, and are not to be understood as limiting the present application.

[0041] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the elements and settings of the particular examples below are described in some instances by a specific reference number. It will be apparent, however, that the application can be practiced without such specific elements. In other instances, well-known structures and elements are shown in block diagram form in order to avoid obscuring the concepts of the present application. In addition, specific details are not to be construed as limiting, but rather as a basis for the claims as set forth below.

[0042] In addition, the terms "first", "second", and the like, do not denote any quantity or order but are used only as labels for distinguishing between different elements. Thus, a "first" and / or "second" feature can include one or more features. In the description of the present application, the meaning of "a plurality" is two or more, unless expressly specified otherwise.

[0043] In the description of the present application, it is to 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", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0045] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected. It can be mechanical connection, or electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] Please refer to Figure 1 and Figure 2 , the control method of the cooking appliance 100 provided by the embodiment of the present application comprises:

[0047] 01, controlling the cooking appliance 100 to heat in the pressure cooking stage;

[0048] 03, after the end of the pressure cooking stage, controlling the cooking appliance 100 to perform the pressure relief and exhaust stage;

[0049] 05, after the end of the pressure relief and exhaust stage, controlling the cooking appliance 100 to switch to the pressureless cooking stage to heat.

[0050] The above cooking appliance 100 can perform the pressure relief and exhaust stage after the end of the pressure cooking stage, and perform the pressureless cooking stage after the end of the pressure relief and exhaust stage, so that the pressure cooking can be switched to the pressureless cooking, and the cooking effect of the cooking appliance 100 can be improved.

[0051] Specifically, the user can select a cooking mode through the keys of the cooking appliance 100 or a terminal (such as a mobile phone) in communication connection with the cooking appliance 100 before cooking. For example, the selected cooking mode is the pressureless cooking mode. Please refer to Figure 3In one embodiment, the cooking appliance 100 can include a control device 12, a heating assembly 14, and a cooking cavity 16, the control device 12 being electrically connected to the heating assembly 14. In the pressure cooking stage, the cooking cavity 16 forms a relatively sealed space and cannot communicate with the outside of the cooking cavity 16, and the pressure in the cooking cavity 16 can be maintained at a high pressure (greater than atmospheric pressure) during cooking to achieve pressure cooking. In the non-pressure cooking stage, the cooking cavity 16 can communicate with the outside of the cooking cavity 16, and the pressure in the cooking cavity 16 can be maintained in balance with the external atmospheric pressure during cooking to achieve non-pressure cooking.

[0052] The control device 12 can control the heating assembly 14 to work according to the selected cooking mode to heat the cooking cavity 16. The cooking mode can include the types of cooking stages and the cooking time corresponding to each cooking stage. When the cooking cavity 16 is heated, the water temperature in the cooking cavity 16 rises and boils, and the air pressure in the cooking cavity 16 gradually increases. When the air pressure in the cooking cavity 16 is greater than the external air pressure of the cooking cavity 16, the cooking appliance 100 works in the pressure cooking stage.

[0053] When the cooking time of the pressure cooking stage is completed, the pressure cooking stage ends. Then, the control device 12 can control the cooking appliance 100 to perform a pressure relief and exhaust stage. The pressure relief and exhaust stage is to exhaust the high-pressure gas in the cooking cavity 16 to the outside of the cooking cavity 16 until the air pressure in the cooking cavity 16 is balanced with the external air pressure.

[0054] After the pressure relief and exhaust stage ends, the control device 12 can control the cooking appliance 100 to switch to heating in the non-pressure cooking stage. Specifically, the non-pressure cooking stage is to cook with the cooking cavity 16 communicating with the outside of the cooking cavity 16. During cooking, the gas generated in the cooking cavity 16 can be exhausted to the outside of the cooking cavity 16, so that the pressure in the cooking cavity 16 can be maintained in balance with the external air pressure to achieve non-pressure cooking.

[0055] When the cooking time of the non-pressure cooking stage is completed, the non-pressure cooking stage ends. Optionally, after the non-pressure cooking stage ends, the control device 12 can control the cooking appliance 100 to issue a cooking end prompt information, so that the user can timely check and operate the cooking appliance 100. The cooking end prompt information can include but is not limited to sound information and light information. The control device 12 can also send the cooking end prompt information to a terminal (such as a mobile phone) in communication connection with the cooking appliance 100, and the terminal can push the cooking end prompt information to the user.

[0056] Optionally, the control device 12 can include a controller, a computer board, a main control board, a control board, etc.

[0057] In some embodiments, the cooking appliance 100 comprises a pressure-limiting valve 18 for opening and closing the first exhaust passage 22, a switching piece 20 for opening and closing the second exhaust passage 24, and the exhaust area of the second exhaust passage 24 is greater than that of the first exhaust passage 22;

[0058] Step 01 comprises:

[0059] Controlling the pressure-limiting valve 18 to close the first exhaust passage 22 and the switching piece 20 to close the second exhaust passage 24 makes the cooking appliance 100 in a pressure cooking phase;

[0060] Step 05 comprises:

[0061] After the end of the pressure relief exhaust phase, controlling the pressure-limiting valve 18 to close the first exhaust passage 22 and the switching piece 20 to open the second exhaust passage 24 makes the cooking appliance 100 in a pressureless cooking phase, or

[0062] After the end of the pressure relief exhaust phase, controlling the pressure-limiting valve 18 to open the first exhaust passage 22 and the switching piece 20 to open the second exhaust passage 24 makes the cooking appliance 100 in a pressureless cooking phase.

[0063] Therefore, the cooking appliance 100 can be in a pressure cooking phase or a pressureless cooking phase by controlling the pressure-limiting valve 18 and the switching piece 20.

[0064] Specifically, the pressure-limiting valve 18 can function as a pressure-limiting valve. When the pressure in the cooking cavity 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, and the gas generated in the cooking cavity 16 cannot be exhausted through the first exhaust passage 22. As the cooking time progresses, the gas pressure in the cooking cavity 16 becomes greater and greater. When the pressure in the cooking cavity 16 is greater than the pressure-limiting pressure of the pressure-limiting valve 18, the pressure-limiting valve 18 is lifted by the gas pressure in the cooking cavity 16, thereby opening the first exhaust passage 22, and the gas in the cooking cavity 16 can be exhausted 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 (kilopascal).

[0065] Please refer to Figure 2The cooking utensil 100 comprises a lid 26 and a body 28. The lid 26 is provided with a first exhaust passage 22 and a second exhaust passage 24. The pressure-limiting valve 18 is movably connected to the lid 26 and closes the first exhaust passage 22. The body 28 is provided with a cooking cavity 16. The lid 26 covers the cooking cavity 16. The body 28 and the lid 26 are hingedly or detachably connected. The upper end of the cooking cavity 16 is provided with an opening. When the cooking utensil 100 is in operation, the lid 26 is closed to the body 28 to close the opening of the cooking cavity 16, so that the cooking cavity 16 forms a relatively sealed cavity. When the lid 26 is opened to the body 28, the opening of the cooking cavity 16 is also opened.

[0066] Please refer to Figure 4 and Figure 5 The cooking utensil 100 further comprises a first driving assembly provided on the lid 26. The first driving assembly comprises a first driving member 30 and a first acting member 32. The control device 12 is electrically connected to the first driving member 30, and the first driving member 30 is connected to the first acting member 32. The first driving member 30 can drive the first acting member 32 to move back and forth along a straight line, so as to switch back and forth between a first position and a second position. When in the first position, the first acting member 32 is separated from the pressure-limiting valve 18, so that the pressure-limiting valve 18 is closed to the first exhaust passage 22 under the action of its own gravity, as shown in Figure 4 . When in the second position, the first acting member 32 lifts the pressure-limiting valve 18, so that the pressure-limiting valve 18 is opened to the first exhaust passage 22, as shown in Figure 5 . The first acting member 32 can comprise a push rod. The first driving member 30 can comprise a linear motor.

[0067] The control device 12 can control the first driving member 30 to operate, so as to control the first acting member 32 to be in the first position or in the second position. For example, when the cooking utensil 100 is in a pressure cooking stage, the control device 12 can control the first driving member 30 to drive the first acting member 32 to the first position, so that the first acting member 32 is separated from the pressure-limiting valve 18, and the pressure-limiting valve 18 is closed to the first exhaust passage 22. When the cooking utensil 100 is in a pressure relief and exhaust stage and / or a pressureless cooking stage, the control device 12 can control the first driving member 30 to drive the first acting member 32 to the second position, so that the first acting member 32 lifts the pressure-limiting valve 18, and the pressure-limiting valve 18 is opened to the first exhaust passage 22.

[0068] It can be understood that, in other embodiments, the first driving assembly for controlling the pressure-limiting valve 18 to open and close the first exhaust passage 22 is not limited to the above-mentioned embodiments, but other acting members and other movement modes can also be used to control the pressure-limiting valve 18 to open and close the first exhaust passage 22. The other movement modes include but are not limited to driving other acting members to rotate to control the pressure-limiting valve 18 to open and close the first exhaust passage 22.

[0069] The control device 12 can control the switching piece 20 to open and close the second exhaust passage 24. Specifically, the cooking appliance 100 comprises a second driving assembly provided on the pot cover 26, the second driving assembly is connected with the switching piece 20, and the control device 12 is electrically connected with the second driving assembly. Please refer to Figure 3 The second driving assembly can comprise a second driving piece 34 and a second acting piece, and the switching piece 20 is movably provided on the pot cover 26. The second driving piece 34 can be connected with the second acting piece, for driving the second acting piece to switch back and forth between a third position and a fourth position to make the switching piece 20 open and close the second exhaust passage 24. When the second acting piece is in the third position, the switching piece 20 is closed, and when the second acting piece is in the fourth position, the switching piece 20 is opened.

[0070] Optionally, in an embodiment, the first driving assembly and the second driving assembly are the same driving assembly, and 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 an embodiment, the first driving assembly and the second driving assembly are two different driving assemblies.

[0071] Therefore, when it is needed that the cooking appliance 100 is in the pressure cooking stage, the control device 12 can control the first driving assembly to make the first acting piece 32 be in the first position, and control the second driving assembly to make the second acting piece be in the third position, so as to make the pressure limiting valve 18 close the first exhaust passage 22 and make the switching piece 20 close the second exhaust passage 24. When it is needed that the cooking appliance 100 is in the pressureless cooking stage, the control device 12 can control the first driving assembly to make the first acting piece 32 be in the second position, and control the second driving assembly to make the second acting piece be in the fourth position, so as to make the pressure limiting valve 18 open the first exhaust passage 22 and make the switching piece 20 open the second exhaust passage 24, or the control device 12 can control the first driving assembly to make the first acting piece 32 be in the first position, and control the second driving assembly to make the second acting piece be in the fourth position, so as to make the pressure limiting valve 18 close the first exhaust passage 22 and make the switching piece 20 open the second exhaust passage 24. Since the exhaust area of the second exhaust passage 24 is larger than that of the first exhaust passage 22, even in the case that the pressure limiting valve 18 closes the first exhaust passage 22 and the switching piece 20 opens the second exhaust passage 24, the cooking appliance 100 can still be in the pressureless cooking stage.

[0072] The exhaust area of the second exhaust passage 24 is larger than the exhaust area of the first exhaust passage 22, so that the exhaust amount (loss amount) of the air flow generated by the cooking appliance 100 during the pressureless cooking process is larger than the generation amount of the air flow, thereby enabling the cooking appliance 100 to smoothly proceed to the pressureless cooking stage. Therefore, when the cooking appliance 100 needs to proceed to the pressureless cooking stage, the switching member 20 can open the second exhaust passage 24 to enable the cooking cavity 16 to communicate with the outside of the cooking cavity 16 through the second exhaust passage 24, thereby increasing the exhaust amount and proceeding to the pressureless cooking stage.

[0073] In some embodiments, step 03 comprises:

[0074] controlling the pressure-limiting valve 18 to open the first exhaust passage 22 to proceed to the pressure relief exhaust stage, and / or controlling the switching member 20 to open the second exhaust passage 24 to proceed to the pressure relief exhaust stage.

[0075] Thus, the cooking appliance 100 can proceed to the pressure relief exhaust stage through the pressure-limiting valve 18 and / or the switching member 20.

[0076] Specifically, in one embodiment, the control device 12 can control the first driving assembly to make the pressure-limiting valve 18 open the first exhaust passage 22, and control the second driving assembly to make the switching member 20 open the second exhaust passage 24, so that the cooking cavity 16 can communicate with the outside of the cooking cavity 16 through the first exhaust passage 22 and the second exhaust passage 24. The use of two exhaust passages for pressure relief exhaust can improve the speed of pressure relief exhaust.

[0077] In one embodiment, the control device 12 can control the first driving assembly to make the pressure-limiting valve 18 open the first exhaust passage 22 and control the second driving assembly to make the switching member 20 close the second exhaust passage 24, so that the cooking cavity 16 can communicate with the outside of the cooking cavity 16 through the first exhaust passage 22, and pressure relief exhaust is performed through the first exhaust passage 22. In one embodiment, the control device 12 can control the second driving assembly to make the switching member 20 open the second exhaust passage 24 and control the first driving assembly to make the pressure-limiting valve 18 close the first exhaust passage 22, so that the cooking cavity 16 can communicate with the outside of the cooking cavity 16 through the second exhaust passage 24, and pressure relief exhaust is performed through the second exhaust passage 24.

[0078] In some embodiments, the switching member 20 comprises a switching valve 36 or a first float 38.

[0079] Thus, the structure of the switching member 20 is simple.

[0080] Specifically, please refer to Figure 4 and Figure 5In one embodiment, the switching member 20 comprises a switching valve 36. Optionally, the principle of the second driving assembly controlling the switching valve 36 to open and close the second exhaust passage 24 can refer to the principle of the first driving assembly controlling the pressure-limiting valve 18 to open and close the first exhaust passage 22.

[0081] Optionally, the second acting member can be connected to the switching valve 36, and the second driving member 34 can drive the second acting member to move the switching valve 36, so as to open and close the second exhaust passage 24. Specifically, when the second driving member 34 drives the second acting member to switch to the third position, the second acting member can drive the switching valve 36 to move to a position to close the second exhaust passage 24; when the second driving member 34 drives the second acting member to switch to the fourth position, the second acting member can drive the switching valve 36 to move to a position to open the second exhaust passage 24.

[0082] Please refer to Figure 6 and Figure 7 In one embodiment, the switching member 20 comprises a first float 38. The first float 38 comprises a first main body 40 and two first limiting portions 42, the two first limiting portions 42 are respectively arranged at two ends of the first main body 40, the first limiting portions 42 protrude from the first main body 40, and the first main body 40 is movably arranged in the second exhaust passage 24 and gap-fitted with the second exhaust passage 24, so that the first float 38 can ascend and descend in the second exhaust passage 24.

[0083] The first float 38 can be located at a lower position when the pressure in the cooking cavity 16 is not started (zero pressure), so as to indicate that the pressure in the cooking cavity 16 has not been started. At this time, the first float 38 can open the second exhaust passage 24. At the initial stage of cooking, the cold air in the cooking cavity 16 can be discharged from the second exhaust passage 24, so as to improve the heating efficiency of the cooking appliance 100.

[0084] Optionally, when the second acting member is at the third position, the second acting member can avoid the first float 38 in the ascending and descending direction of the first float 38, so that the first float 38 can ascend to close the second exhaust passage 24 when the pressure in the cooking cavity 16 is started. When the second acting member is at the fourth position, the second acting member can be in the path of the ascending and descending direction of the first float 38, so that the first float 38 cannot ascend to the position to close the second exhaust passage 24, and the first float 38 opens the second exhaust passage 24.

[0085] In some embodiments, in the case that the switching member 20 comprises the switching valve 36, the cooking appliance 100 comprises a second float 44 for indicating whether the pressure in the cooking cavity 16 of the cooking appliance 100 is started.

[0086] Therefore, the user can conveniently and timely know the pressure state of the cooking appliance 100.

[0087] Specifically, please combine Figure 8 The second float 44 includes a second main body 48 and two second limiting portions 50, the two second limiting portions 50 are respectively arranged at two ends of the second main body 48, the second limiting portions 50 protrude from the second main body 48, the second main body 48 penetrates the mounting through hole 46, and a circumferential side surface of the second main body 48 can be in sliding contact with a hole wall of the mounting through hole 46, so that the second float 44 can slide up and down in the mounting through hole 46.

[0088] The second float 44 can be located at a lower position when the cooking cavity 16 is not under pressure (zero pressure), thereby indicating that the cooking cavity 16 is not yet under pressure. During the pressure cooking stage, the air pressure in the cooking cavity 16 can lift the second float 44, so that the second float 44 is located at a higher position, thereby indicating that the cooking cavity 16 is under pressure, and meanwhile, the second limiting portions 50 at the bottom of the second main body 48 can further seal the mounting through hole 46. During the non-pressure cooking stage, since the cooking cavity 16 is connected to the outside of the cooking cavity 16 through the second exhaust passage 24 or is connected to the outside of the cooking cavity 16 through the second exhaust passage 24 and the first exhaust passage 22, the cooking cavity 16 is not under pressure, and thus the second float 44 is located at the lower position.

[0089] Please refer to Figure 9 The third exhaust passage 52 is arranged on the pot cover 26, and the second float 44 includes a third main body 54 and two third limiting portions 56, the two third limiting portions 56 are respectively arranged at two ends of the third main body 54, the third limiting portions 56 protrude from the third main body 54, and the third main body 54 penetrates the third exhaust passage 52 and is in gap cooperation with the third exhaust passage 52, so that the second float 44 can rise and fall in the third exhaust passage 52.

[0090] The second float 44 can be located at a lower position when the cooking cavity 16 is not under pressure (zero pressure), thereby indicating that the cooking cavity 16 is not yet under pressure. At this time, the second float 44 can open the third exhaust passage 52. During the initial stage of cooking, the cold air in the cooking cavity 16 can be discharged from the third exhaust passage 52, thereby improving the heating efficiency of the cooking appliance 100.

[0091] During the pressure cooking stage, the air pressure in the cooking cavity 16 can lift the second float 44, so that the second float 44 is located at a higher position, thereby indicating that the cooking cavity 16 is under pressure. Meanwhile, the third limiting portions 56 at the bottom of the third main body 54 can close the third exhaust passage 52, so that the cooking cavity 16 cannot be connected to the outside of the cooking cavity 16 through the third exhaust passage 52, and the cooking appliance 100 can perform the pressure cooking stage.

[0092] In the pressureless cooking stage, the cooking cavity 16 is communicated with the outside of the cooking cavity 16 through the second exhaust passage 24 or communicated with the outside of the cooking cavity 16 through the second exhaust passage 24 and the first exhaust passage 22, so that the cooking cavity 16 is not under pressure, and the second float 44 is in a lower position, the third exhaust passage 52 can be opened by the second float 44, and the cooking cavity 16 can be communicated with the outside of the cooking cavity 16 through the third exhaust passage 52.

[0093] In some embodiments, the pressure-bearing pressure of the switching piece 20 is greater than the pressure-limiting pressure of the pressure-limiting valve 18.

[0094] Therefore, the pressure cooking stage of the cooking appliance 100 can be carried out smoothly to a certain extent.

[0095] Specifically, in the limited cooking stage, when the pressure in the cooking cavity 16 is greater than the pressure-limiting pressure of the pressure-limiting valve 18, the pressure-limiting valve 18 can open the first exhaust passage 22 to vent and reduce the pressure in the cooking cavity 16, which can improve the use safety of the cooking appliance 100 to a certain extent. When the pressure in the cooking cavity 16 is reduced to be less than the pressure-limiting pressure of the pressure-limiting valve 18, the pressure-limiting valve 18 re-closes the first exhaust passage 22.

[0096] The pressure-bearing pressure of the switching piece 20 is greater than the pressure-limiting pressure of the pressure-limiting valve 18, so that when the pressure in the cooking cavity 16 is greater than the pressure-limiting pressure of the pressure-limiting valve 18, the switching piece 20 can withstand the pressure in the cooking cavity 16 while the pressure-limiting valve 18 can vent, thereby avoiding the pressure in the cooking cavity 16 breaking the switching piece 20 and the switching piece 20 being unable to maintain the state of closing the second exhaust passage 24, and the pressure cooking stage of the cooking appliance 100 can be carried out smoothly to a certain extent.

[0097] In one example, the pressure-limiting pressure of the pressure-limiting valve 18 is 70 kPa, and the pressure-bearing pressure of the switching piece 20 is greater than 70 kPa.

[0098] In some embodiments, the cooking appliance 100 comprises a pressure detection assembly and a cooking cavity 16, and the pressure detection assembly is used to detect the pressure in the cooking cavity 16.

[0099] Therefore, the pressure in the cooking cavity 16 can be obtained by the pressure detection assembly.

[0100] Specifically, in the case that the pressure in the cooking cavity 16 is greater than the atmospheric pressure, it indicates that the pressure in the cooking cavity 16 is built up, and the control device 12 can determine that the cooking appliance 100 is in the pressure cooking stage. In the case that the pressure in the cooking cavity 16 is equal to the atmospheric pressure, it indicates that the pressure in the cooking cavity 16 is not built up, and the control device 12 can determine that the pressure relief exhaust stage is ended, so that the pressureless cooking stage can be performed. In the case that the pressure in the cooking cavity 16 is equal to the atmospheric pressure, it can be considered that the cooking cavity 16 is in the zero pressure state (not built up). In the case that the pressure in the cooking cavity 16 is greater than the atmospheric pressure, it can be considered that the cooking cavity 16 is in the pressure state (built up).

[0101] Optionally, the pressure detecting assembly can comprise a pressure sensor, which can be arranged on the surface of the pot cover 26 facing the cooking cavity 16 to sense the pressure in the cooking cavity 16. The pressure sensor can be electrically connected to the control device 12.

[0102] In some embodiments, the pressure detecting assembly comprises a float assembly.

[0103] In this way, the pressure in the cooking cavity 16 can be detected by the float assembly, and the cost of the cooking appliance 100 can be reduced.

[0104] Specifically, please refer to Figure 6 and Figure 7 In one embodiment, the float assembly comprises a first float 38 and a trigger 58. The control device 12 is electrically connected to the trigger 58. When the pressure in the cooking cavity 16 is not built up, the first float 38 is in a lower position, and the first float 38 does not trigger the trigger 58 (as shown in Figure 6 When the air pressure in the cooking cavity 16 gradually increases, and the air pressure in the cooking cavity 16 is greater than the atmospheric pressure, the first float 38 is lifted by the air pressure in the cooking cavity 16 and is in a higher position to trigger the trigger 58 (as shown in Figure 7 ), so that the trigger 58 can send a pressure built-up signal, and the control device 12 can determine that the cooking cavity 16 is in the pressure cooking state.

[0105] After the pressure cooking stage is ended, the control device 12 can control the cooking appliance 100 to perform the pressure relief exhaust stage. Optionally, in the pressure relief exhaust stage, the control device 12 can control the first driving assembly to open the first exhaust passage 22 and control the second driving assembly to open the second exhaust passage 24.

[0106] When the air pressure in the cooking cavity 16 is equal to the atmospheric pressure, the first float 38 drops to the lower position, and the first float 38 no longer triggers the trigger 58, so that the control device 12 can determine that the pressure relief exhaust stage is ended, so that the pressureless cooking stage can be switched to. Optionally, the trigger 58 can comprise a reed switch or a contact trigger, and the present application does not make specific limitations thereto.

[0107] Please refer to Figure 8 and Figure 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 by the second float 44 and the trigger 58 can refer to the above description of the detection of the pressure state of the cooking appliance 100 by the first float 38 and the trigger 58, which will not be described in detail here.

[0108] In some embodiments, the second exhaust passage 24 has an exhaust area greater than or equal to 30 mm^2.

[0109] In this way, the exhaust area of the second exhaust passage 24 can meet the relevant exhaust speed design to some extent.

[0110] Specifically, in one embodiment, the second exhaust passage 24 is a cylindrical hole, and the exhaust area of the cylindrical hole is the area of the bottom surface of the cylinder. In one embodiment, the second exhaust passage 24 is a prismatic hole, and the exhaust area of the prismatic hole is the area of the bottom surface of the prism. The bottom surface of the prism includes but is not limited to a triangle, a quadrilateral, a pentagon, or other polygons. The prism can include a straight prism and an inclined prism.

[0111] Alternatively, for other regular or irregular shapes of the second exhaust passage 24, the exhaust area of the second exhaust passage 24 can be the area of the planar shape obtained by the cross section perpendicular to the axis of the second exhaust passage 24, and when there are multiple planar shapes, the minimum area of the planar shape is greater than or equal to 30 mm^2.

[0112] The exhaust area of the second exhaust passage 24 is S2, and the exhaust area of the second exhaust passage 24 is greater than or equal to 30 mm^2, that is, S2≥30 mm^2. In some examples, S2=30 mm^2, 35 mm^2, 40 mm^2, 45 mm^2, 50 mm^2, or other values greater than or equal to 30 mm^2. The upper limit of S2 can be determined according to the space configuration of the pot cover 26 and the size of the cooking appliance 100, which is not limited in the present application.

[0113] In some embodiments, the first exhaust passage 22 has an exhaust area less than or equal to 10 mm^2.

[0114] In this way, the cooking appliance 100 can be able to smoothly perform pressure cooking to some extent.

[0115] Specifically, in one embodiment, the first exhaust passage 22 is a cylindrical hole, and the exhaust area of the first exhaust passage 22 is the area of the bottom surface of the cylinder. In one embodiment, the first exhaust passage 22 is a prismatic hole, and the exhaust area of the first exhaust passage 22 is the area of the bottom surface of the prism. The bottom surface of the prism includes but is not limited to a triangle, a quadrilateral, a pentagon, or other polygons. The prism can include a straight prism and an oblique prism.

[0116] Alternatively, for other regular or irregular shaped first exhaust passages 22, the exhaust area of the first exhaust passage 22 can be the area of the planar shape obtained by the cross section perpendicular to the first exhaust passage 2212 axis, and when there are multiple planar shapes, the largest area of the planar shape is less than or equal to 10 mm^2.

[0117] The exhaust area of the first exhaust passage 22 is S1, and the exhaust area of the first exhaust passage 22 is less than or equal to 10 mm^2, i.e. S1≤10 mm^2. In some examples, S1=10 mm^2, 8 mm^2, 6 mm^2, 5 mm^2, or other values ≤10 mm^2. The lower limit of S1 can be determined according to the spatial configuration of the pot cover 26, the size of the cooking utensil 100, and the processing difficulty, which is not limited in the present application.

[0118] The exhaust area of the first exhaust passage 22 is less than or equal to 10 mm^2, which can to some extent make the exhaust amount (loss amount) of the gas flow smaller than the generated amount of the gas flow when the pressure limiting valve 18 is relieved, so as to ensure that the cooking utensil 100 can still smoothly proceed with pressure cooking after the pressure limiting valve 18 is relieved.

[0119] In some embodiments, the control method comprises:

[0120] In the pressure relief exhaust stage, the control device 12 controls the cooking utensil 100 to heat or stop heating.

[0121] In this way, the working mode of the cooking utensil 100 can be flexibly configured.

[0122] Specifically, in one embodiment, in the pressure relief exhaust stage, the control device 12 can control the cooking utensil 100 to heat. The cooking utensil 100 comprises a heating assembly 14, and the control device 12 can be electrically connected to the heating assembly 14. In the pressure relief exhaust stage, the control device 12 can control the heating assembly 14 to operate to heat the cooking cavity 16. Alternatively, the heating power of the heating assembly 14 can be smaller than the heating power in the pressure cooking stage. Heating in the pressure relief exhaust stage can make the cooking utensil 100 work in a state where the pressure in the cooking cavity 16 is smaller than the pressure in the pressure cooking stage, so as to cook the food in more modes.

[0123] In one embodiment, during the pressure relief exhaust stage, the control device 12 can control the cooking appliance 100 to stop heating. The cooking appliance 100 comprises a heating assembly 14, and the control device 12 can be electrically connected to the heating assembly 14. During the pressure relief exhaust stage, the control device 12 can control the heating assembly 14 to be turned off to stop heating the cooking cavity 16. Stopping heating during the pressure relief exhaust stage can help reduce the time length of the pressure relief exhaust stage, so that the cooking appliance 100 can enter the pressureless cooking stage faster.

[0124] In some embodiments, the control method comprises:

[0125] Before the cooking appliance 100 enters the pressure cooking stage, the control device 12 can control the cooking appliance 100 to heat at maximum power.

[0126] In this way, the cooking time can be reduced, and the user experience can be improved.

[0127] Specifically, in one embodiment, when the cooking appliance 100 is in use, a user can pour water into the cooking cavity 16 to cook food. Before the cooking appliance 100 enters the pressure cooking stage, the control device 12 can control the heating assembly 14 to operate at maximum power to heat the cooking cavity 16, so that the water in the cooking cavity 16 can be boiled as soon as possible to pressurize the cooking cavity 16, thereby reducing the cooking time and improving the user experience. Optionally, the maximum power can be the rated power of the heating assembly 14. The heating assembly 14 can include, but is not limited to, a heating disc and a heating tube.

[0128] The control device 12 of the cooking appliance 100 according to an embodiment of the present application comprises a memory 60 and a processor 62, the memory 60 stores a computer program, and the computer program is executed by the processor 62 to implement the steps of the control method according to any one of the above embodiments.

[0129] The cooking appliance 100 according to an embodiment of the present application comprises the control device 12 according to any one of the above embodiments.

[0130] Optionally, please refer to Figure 3 The cooking appliance 100 comprises a heating assembly 14, a first driving member 30, a second driving member 34, and a trigger member 58, and the control device 12 can be electrically connected to the heating assembly 14, the first driving member 30, the second driving member 34, and the trigger member 58, and can control the overall operation of the cooking appliance 100.

[0131] The non-volatile computer readable storage medium according to an embodiment of the present application stores a computer program, and the computer program is executed by the processor 62 to implement the steps of the control method according to any one of the above embodiments.

[0132] For example, the control method implemented when the computer program is executed by the processor 62 comprises:

[0133] 01, controlling the cooking appliance 100 to heat under a pressure cooking phase;

[0134] 03, after the end of the pressure cooking phase, controlling the cooking appliance 100 to perform a pressure relief and exhaust phase;

[0135] 05, after the end of the pressure relief and exhaust phase, controlling the cooking appliance 100 to switch to heat under a pressureless cooking phase.

[0136] It should be noted that the above explanations and descriptions of the embodiments of the control method and the beneficial effects are also applicable to the control device 12, the cooking appliance 100 and the computer readable storage medium of the present embodiment, and for the sake of avoiding redundancy, will not be described here again.

[0137] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, device (system) or computer program product. Therefore, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented 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.

[0138] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0139] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, combinations, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirit of the present application, and the scope of the present application 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; controlling the cooking appliance to perform a pressure relief exhaust phase after the pressure cooking phase ends; controlling the cooking appliance to switch to heat in a pressureless cooking phase after the pressure relief exhaust phase ends.

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; controlling the cooking appliance to switch to heat in a pressureless cooking phase after the pressure relief exhaust phase ends comprises: 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 pressureless cooking phase, or 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 pressureless cooking phase. 3.The control method of a cooking appliance according to claim 2, characterized in that, controlling the cooking appliance to perform a pressure relief exhaust phase after the pressure cooking phase ends 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 cooking cavity of the cooking appliance. 6.The control method of a cooking appliance according to claim 2, 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 claim 1, characterized in that, The cooking appliance comprises a pressure detection assembly and a cooking cavity, and the pressure detection assembly is used to detect pressure in the 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 claim 2, 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 claim 2, 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 claim 1, characterized in that, The control method comprises: controlling the cooking appliance to heat or stop heating in the pressure relief exhaust phase. 12.The control method of a cooking appliance according to claim 1, characterized in that, The control method comprises: controlling the cooking appliance to heat at maximum power before the cooking appliance enters the pressure cooking phase.

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.

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