CN114424883A

CN114424883A - Control method, control device, pressure cooking appliance and storage medium

Info

Publication number: CN114424883A
Application number: CN202011184137.9A
Authority: CN
Inventors: 梅若愚; 程志喜
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2022-05-03
Anticipated expiration: 2040-10-29
Also published as: CN114424883B

Abstract

The application provides a control method, a control device, a pressure cooking appliance and a storage medium. The control method comprises the following steps: judging whether the non-pressure exhaust channel is in an open state; and sending a reminding signal whether to operate in a non-pressure cooking mode or not based on the fact that the non-pressure exhaust channel is in an open state. This application can realize having the switching of two kinds of culinary art modes of pressure culinary art and non-pressure culinary art. The area of the through hole communicated with the atmosphere through the non-pressure exhaust channel is large, so that the non-pressure cooking can be really realized, and the cooking effect is good. In the use, whether the non-pressure exhaust channel is in an open state or not is judged firstly, so that the cooking mode of the pressure cooking appliance is controlled reasonably according to the selection of a user, and different cooking requirements of the user are met.

Description

Control method, control device, pressure cooking appliance and storage medium

Technical Field

The present application relates to the technical field of cooking appliances, and in particular, to a control method, a control device, a pressure cooking appliance, and a computer-readable storage medium.

Background

At present, the pressure cooking appliances such as electric pressure cookers carry out non-pressure cooking in the following modes: the push rod or other pushing structure pushes the pressure limiting valve and separates the plug of the pressure limiting valve from the pipe orifice of the exhaust pipe, so that the two ends of the exhaust pipe are respectively communicated with the pot body and the outside. However, since the diameter of the pipe body of the exhaust pipe is small and the exhaust amount is insufficient, the real non-pressure cooking cannot be realized and the cooking effect is poor.

Disclosure of Invention

In order to solve at least one of the above technical problems, a first object of the present application is to provide a control method.

A second object of the present application is to provide a control device.

A third object of the present application is to provide a pressure cooking appliance.

A fourth object of the present application is to provide a computer-readable storage medium.

In order to achieve the above object, according to an embodiment of a first aspect of the present application, there is provided a control method for a pressure cooking appliance provided with a non-pressure exhaust passage and a pressure exhaust passage, the non-pressure exhaust passage having a cross-sectional area larger than that of the pressure exhaust passage, the control method including: judging whether the non-pressure exhaust channel is in an open state; and sending a reminding signal whether to operate in a non-pressure cooking mode or not based on the fact that the non-pressure exhaust channel is in an open state.

According to the control method provided by the embodiment of the first aspect of the application, the pressure cooking appliance is provided with the pressure exhaust channel and the non-pressure exhaust channel which are mutually independent, the pressure exhaust channel is used for pressure cooking, the non-pressure exhaust channel is used for non-pressure cooking, and switching between two cooking modes of pressure cooking and non-pressure cooking can be realized through opening and closing of the non-pressure exhaust channel. The area of the through hole communicated with the atmosphere through the non-pressure exhaust channel is large, so that the non-pressure cooking can be really realized, and the cooking effect is good.

In the use, whether the non-pressure exhaust channel is in an open state or not is judged firstly, so that the cooking mode of the pressure cooking appliance is controlled reasonably according to the selection of a user, and different cooking requirements of the user are met. When judging that the non-pressure exhaust passage is in the open state, send the warning signal, remind the user whether with the operation of non-pressure culinary art mode, supply the user to select, can prevent like this that the user from because of forgetting to close the condition emergence that the non-pressure exhaust passage leads to choosing wrong culinary art mode, be favorable to improving user's comfort level.

In addition, the control method in the above technical solution provided by the present application may further have the following additional technical features:

according to an embodiment of the present application, the control method further includes: and controlling the pressure cooking appliance to operate in the non-pressure cooking mode based on the received instruction of operating in the non-pressure cooking mode.

When the user selects to operate in the non-pressure cooking mode, the pressure cooking appliance receives an instruction of operating in the non-pressure cooking mode, and at the moment, the pressure cooking appliance can be controlled to operate in the non-pressure cooking mode, so that the non-pressure cooking effect of food materials is ensured.

According to an embodiment of the present application, the control method further includes: judging whether the accumulated time of the pressure cooking appliance running in the non-pressure cooking mode reaches a first set time; and finishing the cooking based on that the accumulated time of the pressure cooking appliance running in the non-pressure cooking mode reaches the first set time.

When the accumulated time of the pressure cooking appliance running in the non-pressure cooking mode reaches the first set time, the cooking degree of food materials in the pot is shown to reach the required state, the cooking can be automatically finished at the moment, the manual finishing of a user is not needed, the automation degree of the pressure cooking appliance is improved, and the use comfort degree of the user is further improved. And when the accumulated time length of the pressure cooking appliance running in the non-pressure cooking mode does not reach the set time length, continuously executing the step of judging whether the accumulated time length of the pressure cooking appliance running in the non-pressure cooking mode reaches the first set time length.

According to an embodiment of the present application, the control method further includes: and sending a reminding signal for switching to the pressure cooking mode to operate based on the received instruction of not operating in the non-pressure cooking mode, and returning to execute the step of judging whether the non-pressure exhaust channel is in an open state or not.

When the user selects not to operate in the non-pressure cooking mode, the pressure cooking appliance receives an instruction of not operating in the non-pressure cooking mode, and indicates that the user forgets to close the non-pressure exhaust channel, so that a reminding signal for switching to the pressure cooking mode is sent out at the moment, the user is reminded to close the non-pressure exhaust channel, and the step of judging whether the non-pressure exhaust channel is in a card punching state is returned to be executed, so that the user is ensured to close the non-pressure exhaust channel and then cook.

According to an embodiment of the present application, the control method further includes: and controlling the pressure cooking utensil to operate in a pressure cooking mode based on the fact that the non-pressure exhaust channel is in a closed state.

In the using process, whether the non-pressure exhaust channel is in an open state or not is judged, and when the non-pressure exhaust channel is judged to be in a closed state, the non-pressure exhaust channel is indicated to be closed, so that the pressure cooking appliance is controlled to operate in a pressure cooking mode.

According to an embodiment of the present application, the control method further includes: judging whether a pressure switch of the pressure cooking appliance is disconnected or not in the process of controlling the pressure cooking appliance to operate in a pressure cooking mode; and controlling the pressure cooking appliance to switch to the pressure maintaining mode to operate based on the disconnection of the pressure switch.

In the pressure cooking process, when the pressure switch is switched off, the pressure in the cooker reaches the set pressure, and the pressure cooking appliance is controlled to be switched to the pressure maintaining mode to operate, so that potential safety hazards caused by continuous rising of the pressure in the cooker can be prevented, higher pressure in the cooker can be ensured, the high-efficiency cooking process can be ensured, and the cooking time can be shortened. And when the pressure switch is closed, indicating that the pressure in the cooker does not reach the set pressure, and continuously executing the step of judging whether the pressure switch of the pressure cooking appliance is disconnected.

According to an embodiment of the present application, the control method further includes: judging whether the accumulated time of the pressure cooking appliance running in the pressure maintaining mode reaches a second set time; and finishing the cooking based on the accumulated time length of the pressure cooking appliance running in the pressure maintaining mode reaching the second set time length.

When the accumulated time of the pressure cooking appliance running in the pressure maintaining mode reaches the second set time, the cooking degree of food in the pot is indicated to reach the required state, the cooking can be automatically finished at the moment, the manual finishing of a user is not needed, the automation degree of the pressure cooking appliance is improved, and the use comfort degree of the user is further improved. And when the accumulated time length of the pressure cooking appliance running in the pressure maintaining mode does not reach the set time length, continuously executing the step of judging whether the accumulated time length of the pressure cooking appliance running in the pressure maintaining mode reaches the second set time length.

According to one embodiment of the present application, the pressure cooking appliance comprises a pressure limiting valve, a driving mechanism and a detection mechanism; the pressure limiting valve is arranged at the pressure exhaust channel; the driving mechanism is arranged at the non-pressure exhaust channel, is suitable for moving between an opening position and a closing position and is used for opening or closing the non-pressure exhaust channel; the detection mechanism is used for detecting the position of the driving mechanism; the step of judging whether the non-pressure exhaust channel is in an open state specifically comprises the following steps: determining a detection result of the detection mechanism; judging whether the non-pressure exhaust channel is in an open state according to the detection result of the detection mechanism; based on the detection mechanism detecting that the driving mechanism moves to the closing position, determining that the non-pressure exhaust channel is in a closing state; and determining that the non-pressure exhaust channel is in an open state based on the detection mechanism detecting that the driving mechanism moves to the open position.

The pressure cooking appliance comprises a pressure limiting valve, a driving mechanism and a detection mechanism. The pressure limiting valve is arranged at the pressure exhaust channel and used for opening or closing the pressure exhaust channel. When the pressure limiting valve closes the pressure exhaust passage, the pressure in the cooker can reach the pressure limited by the pressure limiting valve, and when the pressure in the cooker exceeds the pressure limited by the pressure limiting valve, the pressure limiting valve is jacked open, and the pressure exhaust passage realizes exhaust. The drive mechanism is provided at the pressureless exhaust passage and is movable between an open position and a closed position. When the driving mechanism moves to the open position, the pressureless exhaust passage is opened; when the drive mechanism moves to the closed position, the pressureless exhaust passage is closed. The detection mechanism is used for detecting the position of the driving mechanism, so that whether the non-pressure exhaust channel is in an open state or not can be judged according to the detection result of the detection mechanism.

According to one embodiment of the application, the pressure exhaust channel, the non-pressure exhaust channel, the pressure limiting valve and the driving mechanism are all arranged on a pot cover of the pressure cooking utensil; the detection mechanism comprises a magnetic piece and a magnetic induction element, one of the magnetic piece and the magnetic induction element is in linkage fit with the driving mechanism, and the other one is arranged on a pot body of the pressure cooking appliance; the step of determining the detection result of the detection mechanism specifically includes: determining the detection result of the detection mechanism according to the output signal of the magnetic induction element; determining that the driving mechanism moves to the opening position based on the output signal of the magnetic induction element as a first setting signal; and determining that the driving mechanism moves to the closing position based on the output signal of the magnetic induction element as a second setting signal.

In this embodiment, the detection mechanism includes a magnetic member and a magnetic induction element, the magnetic member and the magnetic induction element are disposed correspondingly, and the magnetic induction element can detect the magnetic field of the magnetic member. When the relative position of the magnetic piece and the magnetic induction element changes, the output signal of the magnetic induction element changes. Therefore, the position of the driving mechanism can be indirectly detected by utilizing the matching of the magnetic piece and the magnetic induction element, and whether the non-pressure exhaust channel is in an open state or not is further judged. The scheme has the advantages of simple structure and ingenious design, is favorable for simplifying the electric control program of the pressure cooking appliance, and further reduces the probability of electric control faults.

According to one embodiment of the application, the magnetic induction element is a reed switch or a hall sensor.

The reed switch or the Hall sensor is a magnetic induction element which is commonly used and can be matched with a magnetic part to realize a non-contact detection function. Compared with a Hall sensor, the reed switch can distinguish the change of an output signal through the change of the on-off state, for example, when the reed switch is in the off state, the non-pressure exhaust channel is in the open state, and therefore the electric control program of the pressure cooking appliance is further simplified.

According to one embodiment of the application, the drive mechanism comprises: the moving part is movably connected with the pot cover; and the linkage lever is rotationally connected with the pot cover and is in linkage fit with the movable piece, one end of the linkage lever is in linkage fit with the magnetic piece, and the other end of the linkage lever is arranged corresponding to the non-pressure exhaust channel and is used for opening or closing the non-pressure exhaust channel.

The driving mechanism comprises a movable piece and a linkage lever. The moving part is movably connected with the pot cover and can move relative to the pot cover, and the linkage lever is rotatably connected with the pot cover and can rotate relative to the pot cover. And the linkage lever is in linkage fit with the moving part, and when the moving part moves relative to the pot cover, the linkage lever can be driven to move. Because one end of the linkage lever is arranged corresponding to the non-pressure exhaust channel, the linkage lever can open or close the non-pressure exhaust channel. Meanwhile, the linkage lever is in linkage fit with the magnetic piece, so that when the linkage lever moves, the magnetic piece can be driven to move, the position of the magnetic piece is changed, and the output signal of the magnetic induction element is changed.

According to an embodiment of the second aspect of the present application, there is provided a control device adapted for a pressure cooking appliance, comprising: a memory storing programs or instructions; and a processor, which implements the steps of the control method according to any one of the embodiments of the first aspect when executing the program or the instructions, so as to have all the advantages of any one of the embodiments described above, and thus, the description thereof is omitted here.

According to an embodiment of the third aspect of the present application, there is provided a pressure cooking appliance including: the cooking body is provided with a non-pressure exhaust channel and a pressure exhaust channel, and the cross section area of the non-pressure exhaust channel is larger than that of the pressure exhaust channel; and a control device as in the embodiment of the second aspect, electrically connected with the cooking body, for controlling the operation mode of the pressure cooking appliance.

The pressure cooking appliance provided by the embodiment of the third aspect of the present application includes the control device provided by the embodiment of the second aspect, so that all the advantages of any of the above embodiments are provided, and details are not described herein again.

According to an embodiment of the fourth aspect of the present application, there is provided a computer-readable storage medium, on which a program or an instruction is stored, where the program or the instruction, when executed, implements the steps of the control method according to any one of the embodiments of the first aspect, so that all the advantages of any one of the embodiments are achieved, and are not described herein again.

Additional aspects and advantages of the present application will be set forth in part in the description which follows, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic flow chart diagram of a control method provided by an embodiment of the present application;

FIG. 2 is a schematic flow chart diagram illustrating a portion of a control method provided in an embodiment of the present application;

FIG. 3 is a schematic flow chart diagram of a control method provided by an embodiment of the present application;

FIG. 4 is a schematic flow chart diagram of a control method provided by an embodiment of the present application;

FIG. 5 is a partial flow diagram of a control method provided in an embodiment of the present application;

FIG. 6 is a schematic flow chart diagram of a control method provided by an embodiment of the present application;

FIG. 7 is a schematic block diagram of a control device provided in one embodiment of the present application;

FIG. 8 is a schematic cross-sectional view of a pressure cooking appliance in a first state according to an embodiment of the present application;

fig. 9 is a sectional view schematically showing the pressure cooking appliance of fig. 8 in a second state;

fig. 10 is an exploded view of a pressure cooking appliance according to an embodiment of the present application;

figure 11 is a cross-sectional view of a lid assembly according to one embodiment of the present application;

figure 12 is a schematic top view of the lid assembly provided in one embodiment of the present application;

FIG. 13 is a schematic top view of a portion of a lid assembly according to an embodiment of the present application;

figure 14 is a cross-sectional view of a lid assembly according to one embodiment of the present application;

FIG. 15 is an enlarged schematic view of portion A of FIG. 14;

FIG. 16 is a schematic bottom view of the closure body provided in accordance with one embodiment of the present application;

FIG. 17 is a cross-sectional structural view of the closure body of FIG. 16;

FIG. 18 is a perspective view of a second seal provided in accordance with an embodiment of the present application;

FIG. 19 is a cross-sectional structural view of the second seal member shown in FIG. 18;

fig. 20 is a schematic perspective view of a fixing base according to an embodiment of the present application;

FIG. 21 is a cross-sectional view of the anchor block of FIG. 20;

FIG. 22 is a schematic perspective view of a valve cartridge provided in accordance with an embodiment of the present application;

FIG. 23 is a cross-sectional structural schematic of the valve cartridge of FIG. 22;

FIG. 24 is a perspective view of a first seal provided in accordance with an embodiment of the present application;

FIG. 25 is a cross-sectional structural view of the first seal member shown in FIG. 24;

fig. 26 is a schematic cross-sectional view of a pressure cooking appliance according to an embodiment of the present application.

Wherein, the correspondence between the reference numbers and the part names in fig. 7 to 26 is:

1, a pot cover, 11 cover bodies, 111 exhaust holes, 112 mounting holes, 113 sealing surfaces, 12 fixing seats, 121 guide parts, 1211 guide holes, 122 clamping edges, 123 abutting surfaces, 13 mounting spaces, 14 pressure exhaust channels, 15 pressure-free exhaust channels, 16 pressure limiting valves, 17 detection mechanisms, 171 magnetic parts, 172 magnetic induction elements, 18 steam valves and 19 knobs;

2 a first sealing element, 21 a sealing body, 211 a first clamping groove, 212 a second clamping protrusion and 22 skirt edges;

3, a connecting piece, 30 valve cores, 31 supporting surfaces, 32 limiting grooves, 33 first clamping protrusions and 34 second clamping grooves;

4 a first elastic reset piece;

5 second sealing element, 51 first connecting part, 511 spacing rib, 52 main body part, 53 second connecting part, 531 hooking protrusion;

6 driving mechanism, 61 moving part, 62 linkage lever;

7 a second elastic reset piece;

8 a third seal;

9 control means, 902 memory, 904 processor;

100 pan lid assembly, 200 pressure cooking appliance, 202 pan.

Detailed Description

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

A control method, a control apparatus, a pressure cooking appliance, and a computer-readable storage medium provided by some embodiments of the present application are described below with reference to fig. 1 to 26.

An embodiment of the first aspect of the present application provides a control method for a pressure cooking appliance 200, where the pressure cooking appliance 200 is provided with a pressureless exhaust channel 15 and a pressureless exhaust channel 14, as shown in fig. 10, 11 and 13. The cross-sectional area of the pressureless exhaust passage 15 is larger than that of the pressureless exhaust passage 14.

As shown in fig. 1, the control method includes:

step S302: judging whether the non-pressure exhaust channel is in an open state;

step S304: and sending a reminding signal whether to operate in a non-pressure cooking mode or not based on the fact that the non-pressure exhaust channel is in an open state.

According to the control method provided by the embodiment of the first aspect of the application, the pressure cooking utensil 200 is provided with the pressure exhaust channel 14 and the non-pressure exhaust channel 15 which are independent of each other, the pressure exhaust channel 14 is used for pressure cooking, the non-pressure exhaust channel 15 is used for non-pressure cooking, and switching between two cooking modes of pressure cooking and non-pressure cooking can be realized by opening and closing the non-pressure exhaust channel 15. Because the area of the through hole of the non-pressure exhaust channel 15 communicated with the atmosphere is larger, the non-pressure cooking can be really realized, and the cooking effect is good.

In the using process, whether the non-pressure exhaust channel 15 is in the open state or not is judged firstly, so that the cooking mode of the pressure cooking appliance 200 is conveniently and reasonably controlled according to the selection of a user, and different cooking requirements of the user are met. When judging that the non-pressure exhaust passage 15 is in the open state, send out the reminder signal, remind the user whether to operate with the non-pressure culinary art mode for the user selects, can prevent like this that the user from because of forgetting to close the condition emergence that the non-pressure exhaust passage 15 leads to choosing wrong culinary art mode, be favorable to improving user's comfort in utilization.

Wherein, the reminding signal includes but is not limited to: voice reminding signals, character reminding signals, light reminding signals, sound reminding signals and the like.

In an embodiment of the present application, further, as shown in fig. 2, the control method further includes:

step S306: and controlling the pressure cooking appliance to operate in the non-pressure cooking mode based on the received instruction of operating in the non-pressure cooking mode.

When the user selects to operate in the non-pressure cooking mode, the pressure cooking appliance 200 receives an instruction of operating in the non-pressure cooking mode, and at the moment, the pressure cooking appliance 200 can be controlled to operate in the non-pressure cooking mode, so that the non-pressure cooking effect of food materials is ensured.

In an embodiment of the present application, as shown in fig. 2, the control method further includes:

step S308: judging whether the accumulated time of the pressure cooking appliance running in the non-pressure cooking mode reaches a first set time;

step S310: and finishing the cooking when the accumulated time of the pressure cooking appliance running in the non-pressure cooking mode reaches a first set time.

When the accumulated time of the pressure cooking appliance 200 operating in the non-pressure cooking mode reaches the first set time, it indicates that the cooking degree of the food in the pot has reached the required state, and at this time, the cooking is automatically finished without the manual finishing of the user, which improves the automation degree of the pressure cooking appliance 200, thereby further improving the use comfort of the user. When the cumulative time period during which the pressure cooking appliance 200 operates in the non-pressure cooking mode does not reach the set time period, the step of determining whether the cumulative time period during which the pressure cooking appliance 200 operates in the non-pressure cooking mode reaches the first set time period may be continuously performed.

The first set time can be determined according to cooking requirements of different food materials.

Further, the first set time period may be manually set by a user during use, or may be stored in the memory 902 of the pressure cooking appliance 200 in advance.

In an embodiment of the present application, further, as shown in fig. 3, the control method further includes:

step S312: and sending a reminding signal for switching to the pressure cooking mode to operate based on the received instruction of not operating in the non-pressure cooking mode, and returning to execute the step of judging whether the non-pressure exhaust channel is in an open state.

When the user selects not to operate in the non-pressure cooking mode, the pressure cooking appliance 200 receives an instruction that the user forgets to close the non-pressure exhaust passage 15, and therefore a prompt signal for switching to the operation in the pressure cooking mode is sent to prompt the user to close the non-pressure exhaust passage 15, and the step of judging whether the non-pressure exhaust passage 15 is in a card punching state is returned to ensure that the user closes the non-pressure exhaust passage 15 and then cooks.

In an embodiment of the present application, further, as shown in fig. 4, the control method further includes:

step S314: and controlling the pressure cooking utensil to operate in a pressure cooking mode based on the fact that the non-pressure exhaust channel is in a closed state.

In the using process, whether the non-pressure exhaust channel 15 is in an open state or not is judged, and when the non-pressure exhaust channel 15 is judged to be in a closed state, the non-pressure exhaust channel 15 is indicated to be closed, so that the pressure cooking appliance 200 is controlled to operate in the pressure cooking mode.

In an embodiment of the present application, further, as shown in fig. 5, the control method further includes:

step S316: judging whether a pressure switch of the pressure cooking appliance is disconnected or not in the process of controlling the pressure cooking appliance to operate in a pressure cooking mode;

step S318: and controlling the pressure cooking appliance to switch to the pressure maintaining mode to operate based on the disconnection of a pressure switch of the pressure cooking appliance.

In the pressure cooking process, when the pressure switch is switched off, the pressure in the cooker reaches the set pressure, and the pressure cooking appliance 200 is controlled to be switched to the pressure maintaining mode to operate, so that potential safety hazards caused by the fact that the pressure in the cooker continues to rise can be prevented, high pressure in the cooker can be guaranteed, the cooking process can be carried out efficiently, and the pressure cooking process can be shortened. When the pressure switch is closed, it indicates that the pressure in the cooker has not reached the set pressure, and the step of determining whether the pressure switch of the pressure cooking appliance 200 is turned off may be continuously performed.

step S320: judging whether the accumulated time of the pressure cooking appliance running in the pressure maintaining mode reaches a second set time;

step S322: and finishing the cooking based on the fact that the accumulated time length of the pressure cooking appliance running in the pressure maintaining mode reaches a second set time length.

When the accumulated time of the pressure cooking appliance 200 operating in the pressure maintaining mode reaches the second set time, it indicates that the cooking degree of the food in the pot has reached the required state, and at this time, the cooking is automatically finished without the manual finishing of the user, which improves the automation degree of the pressure cooking appliance 200, thereby further improving the use comfort of the user. When the accumulated time length of the pressure cooking appliance 200 operating in the pressure maintaining mode does not reach the set time length, the step of determining whether the accumulated time length of the pressure cooking appliance 200 operating in the pressure maintaining mode reaches the second set time length may be continuously performed.

The second set time can be determined according to cooking requirements of different food materials.

Further, the second set time period may be manually set by the user during use, or may be stored in the memory 902 of the pressure cooking appliance 200 in advance.

In one embodiment of the present application, in particular, the pressure cooking appliance 200 comprises a pressure limiting valve 16, a driving mechanism 6 and a detection mechanism 17, as shown in fig. 8 and 9. The pressure limiting valve 16 is arranged at the pressure exhaust channel 14. The drive means 6 is provided at the pressureless exhaust channel 15 and is adapted to be moved between an open position and a closed position for opening or closing the pressureless exhaust channel 15. The detection means 17 is used to detect the position of the drive means 6.

Wherein, the step S302 specifically includes:

determining a detection result of the detection mechanism;

judging whether the non-pressure exhaust channel is in an open state according to the detection result of the detection mechanism;

based on the detection mechanism detecting that the driving mechanism moves to the closing position, determining that the non-pressure exhaust channel is in a closing state;

and determining that the non-pressure exhaust channel is in an open state based on the detection mechanism detecting that the driving mechanism moves to the open position.

The pressure cooking appliance 200 comprises a pressure limiting valve 16, a drive mechanism 6 and a detection mechanism 17. The pressure limiting valve 16 is provided at the pressure exhaust passage 14 to open or close the pressure exhaust passage 14. When the pressure limiting valve 16 closes the pressure exhaust channel 14, the pressure in the cooker can reach the pressure limited by the pressure limiting valve 16, and when the pressure in the cooker exceeds the pressure limited by the pressure limiting valve 16, the pressure limiting valve 16 is jacked open, and the pressure exhaust channel 14 realizes exhaust. The drive mechanism 6 is provided at the pressureless exhaust channel 15, movable between an open position and a closed position. When the drive mechanism 6 moves to the open position, the pressureless exhaust passage 15 is opened; when the drive mechanism 6 is moved to the closed position, the pressureless exhaust channel 15 is closed. The detection mechanism 17 is used for detecting the position of the driving mechanism 6, so that whether the non-pressure exhaust passage 15 is in an open state can be judged according to the detection result of the detection mechanism 17.

In an embodiment of the present application, further, as shown in fig. 12 and 13, the pressure exhaust channel 14, the non-pressure exhaust channel 15, the pressure limiting valve 16 and the driving mechanism 6 are all provided on the lid 1 of the pressure cooking appliance 200. The detecting mechanism 17 includes a magnetic member 171 and a magnetic induction element 172, as shown in fig. 8 and 9, one of the magnetic member 171 and the magnetic induction element 172 is in linkage with the driving mechanism 6, and the other is disposed on the pot body of the pressure cooking device 200. In the process of moving the driving mechanism 6 from the open position to the closed position, the distance between the magnetic member 171 and the magnetic sensing element 172 changes, so that the output signal of the magnetic sensing element 172 changes.

Wherein, the step of determining the detection result of the detection mechanism specifically comprises:

determining the detection result of the detection mechanism according to the output signal of the magnetic induction element;

determining that the driving mechanism moves to the opening position based on the output signal of the magnetic induction element as a first setting signal;

and determining that the driving mechanism moves to the closing position based on the output signal of the magnetic induction element as a second setting signal.

In this embodiment, the detection mechanism 17 includes a magnetic member 171 and a magnetic induction element 172, the magnetic member 171 and the magnetic induction element 172 are disposed correspondingly, and the magnetic induction element 172 can detect the magnetic field of the magnetic member 171. When the relative position between the magnetic member 171 and the magnetic sensor 172 changes, the output signal of the magnetic sensor 172 changes. Therefore, the position of the drive mechanism 6 can be indirectly detected by the engagement between the magnetic material 171 and the magnetic sensor 172, and whether or not the pressureless exhaust passage 15 is in the open state can be determined. The scheme has the advantages of simple structure and ingenious design, and is favorable for simplifying the electric control program of the pressure cooking appliance 200, thereby reducing the probability of electric control faults.

Specifically, the magnetic member 171 is arranged on the pot cover 1, and the magnetic induction element 172 is arranged on the pot body; alternatively, the magnetic member 171 is provided on the pot body, and the magnetic induction element 172 is provided on the pot cover 1. In the cooking process, the position of the pot body is kept unchanged, the position of the magnetic member 171 or the magnetic induction element 172 arranged on the pot cover 1 changes along with the position change of the driving mechanism 6, so that the output signal of the magnetic induction element 172 changes, and whether the non-pressure exhaust channel 15 is in an open state or not can be judged according to the output signal of the magnetic induction element 172.

In one embodiment of the present application, the magnetic induction element 172 is specifically a reed switch or a hall sensor.

The reed switch or the hall sensor is a magnetic induction element 172 which is commonly used, and can be matched with the magnetic part 171 to realize a non-contact detection function.

In which the reed switch can distinguish the change of the output signal by the change of the on-off state, for example, when the reed switch is in the off state, it indicates that the non-pressure exhaust passage 15 is in the open state, thereby being beneficial to further simplifying the electric control procedure of the pressure cooking appliance 200.

Specifically, the magnetic member 171 may be, but is not limited to, a magnet.

For the embodiment in which the magnetic induction element 172 is a reed switch, the first setting signal is an on signal, and the second setting signal is an off signal. Alternatively, the first setting signal is an off signal and the second setting signal is an on signal.

For the embodiment in which the magnetic induction element 172 is a hall sensor, the first setting signal is a first setting magnetic field strength, the second setting signal is a second setting magnetic field strength, and the first setting magnetic field strength is greater than the second setting magnetic steel strength, or the first setting magnetic field strength is less than the second setting magnetic field strength.

In one embodiment of the present application, in particular, the drive mechanism 6 comprises: a movable element 61 and an interlocking lever 62. Wherein, the moving piece 61 is movably connected with the pot cover 1. The linking lever 62 is rotatably connected to the lid 1 and is linked with the movable member 61, one end of the linking lever 62 is linked with the magnetic member 171, and the other end of the linking lever 62 is disposed corresponding to the non-pressure exhaust passage 15 for opening or closing the non-pressure exhaust passage 15.

The drive mechanism 6 includes a movable piece 61 and an interlock lever 62. The moving member 61 is movably connected with the pot cover 1 and can move relative to the pot cover 1, and the linkage lever 62 is rotatably connected with the pot cover 1 and can rotate relative to the pot cover 1. Moreover, the linking lever 62 is linked with the moving member 61, and when the moving member 61 moves relative to the pot cover 1, the linking lever 62 can be driven to move. Since one end of the interlock lever 62 is disposed corresponding to the non-pressure exhaust passage 15, the interlock lever 62 can open or close the non-pressure exhaust passage 15. Meanwhile, the interlocking lever 62 is in interlocking fit with the magnetic member 171, so that when the interlocking lever 62 moves, the magnetic member 171 can be driven to move, the position of the magnetic member 171 is changed, and the output signal of the magnetic induction element 172 is changed.

Further, the driving mechanism 6 further includes a knob 19, the knob 19 is located above the movable member 61, and one of the knob 19 and the movable member 61 is provided with a driving inclined plane, so that when the knob 19 rotates, the movable member 61 is driven to move downwards, and the linkage lever 62 is driven to open the non-pressure exhaust passage 15.

Further, the pressure cooking appliance 200 includes a steam valve 18, the steam valve 18 is provided with a steam outlet, and the non-pressure exhaust passage 15 is communicated with the steam outlet and exhausts air through the steam outlet. The knob 19 is installed on the steam valve 18, and the steam valve 18 is provided with a non-pressure mark and a pressure mark. When the knob 19 is rotated to be aligned with the pressure mark, the non-pressure exhaust channel 15 is closed; when the knob 19 is rotated to align with the pressureless flag, the pressureless exhaust passage 15 is opened.

In one embodiment, a pressure cooking appliance includes: the pan body is used for containing food to be cooked, and a magnetic induction element 172, in particular a reed switch, is arranged on the pan body; the pot cover 1 is arranged on the pot body; the exhaust assembly comprises a pressure exhaust channel 14 and a non-pressure exhaust channel 15, the pressure exhaust channel 14 comprises an air inlet and a pressure exhaust port, and the pressure exhaust channel 14 is provided with a pressure limiting valve 16; the non-pressure exhaust passage 15 is provided with a driving mechanism, the driving mechanism comprises a movable part movably arranged on the cooker cover 1, and the movable part moves downwards to drive a linkage lever to open the non-pressure exhaust passage 15; the moving part moves upwards, the non-pressure exhaust channel 15 is closed under the action of the self elasticity of the spring, and pressure cooking is realized; the magnet is matched with the linkage lever, and the pressure and non-pressure cooking state is distinguished and switched through the change of the relative position of the magnet and the magnetic induction element 172 (reed pipe).

Since the pressure cooking appliance 200 is provided with the pressure exhaust passage 14 and the non-pressure exhaust passage 15, the pressure exhaust passage 14 and the non-pressure exhaust passage 15 are independent of each other. Wherein, the pressure exhaust channel 14 is used for pressure cooking, and the non-pressure exhaust channel 15 is used for non-pressure cooking. The switching between the pressure cooking mode and the non-pressure cooking mode is realized by opening and closing the non-pressure exhaust channel 15. Because the area of the through hole for communicating the non-pressure exhaust passage 15 with the atmosphere is large, the real non-pressure cooking can be realized.

Further, as shown in fig. 6, the control method of the pressure cooking appliance includes:

powering on, and screwing the pot cover assembly 100 of the pressure cooking appliance in place;

step S402: judging whether the reed switch is in a connection state, if so, executing step S404, and if not, executing step S412;

step S404: controlling a pressure cooking appliance to enter a pressure cooking mode, and starting a function menu to heat;

step S406: judging whether the pressure switch is disconnected, if so, executing step S408, otherwise, returning to execute step S406;

step S408: controlling the pressure cooking appliance to enter a pressure maintaining mode;

step S410: judging whether the pressure maintaining time t1 set by the menu is reached, if so, finishing cooking, and if not, returning to execute the step S410;

step S412: prompting whether to enter a non-pressure cooking mode, and if yes, executing a step S414; if no instruction is received, returning to execute the step S402;

step S414: controlling a pressure cooking appliance to enter a non-pressure cooking mode, and starting a function menu to heat;

step S416: and judging whether the cooking time t2 set by the function menu is reached, if so, finishing the cooking, otherwise, returning to the step S416.

In other words, when the pressure cooking appliance 200 is powered on (i.e., the power is turned on), the lid assembly 100 is screwed in place, and then it is determined whether the reed switch is in the on state.

When the reed switch is in the on state, a pressure cooking mode (or pressure cooking mode) is entered. And then starting the function menu to heat, and judging whether the pressure switch is switched off or not in the heating process. And when the pressure switch is judged to be switched off, entering a pressure maintaining mode, and finishing cooking when the set pressure maintaining time period t1 is reached. When the pressure switch is not turned off, heating is continued until the pressure switch is turned off.

And when the reed switch is in the disconnected state, prompting whether to enter a non-pressure cooking mode. If the user selects yes, a function menu is started, heating is carried out, and whether the set pressureless cooking time t2 is reached or not is judged in the heating process. When the preset non-pressure cooking time t2 is reached, the cooking is finished; when it is determined that the set pressureless cooking time period t2 has not been reached, heating is continued until t2 is reached.

And when the reed switch is in the disconnected state, prompting whether to enter a non-pressure cooking mode. If the user selects no, prompting the user to switch to the pressure cooking mode. When a user rotates the knob 19, the knob 19 is rotated to the pressure mark, and at the moment, the reed pipe can be judged to be in the connection state, and then the pressure cooking mode is started.

The control method solves the problem of mode switching of products in pressure and non-pressure cooking.

As shown in fig. 7, a control device 9 provided in an embodiment of the second aspect of the present application is adapted for a pressure cooking appliance, and includes: a memory 902 and a processor 904. The memory 902 stores programs or instructions. The processor 904, when executing the program or the instructions, implements the steps of the control method according to any one of the embodiments of the first aspect, thereby having all the advantages of any one of the embodiments described above, and further description thereof is omitted here.

As shown in fig. 26, an embodiment of the third aspect of the present application provides a pressure cooking appliance, including: a cooking body and a control device 9 as in the second aspect embodiment. Wherein the cooking body is provided with a non-pressure exhaust passage 15 and a pressure exhaust passage 14. The cross-sectional area of the pressureless exhaust passage 15 is larger than that of the pressureless exhaust passage 14. A control device 9 is electrically connected to the cooking body for controlling the operation mode of the pressure cooking appliance.

The pressure cooking appliance provided by the embodiment of the third aspect of the present application includes the control device 9 provided by the embodiment of the second aspect, so that all the advantages of any of the above embodiments are provided, and details are not described herein again.

In one embodiment of the present application, further, the cooking body includes a lid assembly 100 and a body, the lid assembly 100 covering the body 202.

As shown in fig. 14, the pot lid assembly 100 includes: pot cover 1, first sealing member 2 and connecting piece 3.

Specifically, the pot cover 1 is provided with a pressureless exhaust passage 15, and the pressureless exhaust passage 15 includes at least one exhaust hole 111, as shown in fig. 16 and 17. The first sealing member 2 is provided corresponding to the bottom surface of the lid 1, as shown in fig. 15, for opening or closing the at least one exhaust hole 111. The connecting member 3 is provided on the lid 1 and connected to the first sealing member 2, as shown in fig. 15.

The pot cover assembly 100 provided by the embodiment of the first aspect of the present application is to arrange the first sealing element 2 for pressure sealing below the pot cover 1, so that the first sealing element 2 is located in the closed space formed by the pot cover assembly 100 and the pot body 202 during the cooking process, and therefore the first sealing element 2 can be tightly pressed on the pot cover 1 by using the pressure in the pot, so as to realize pressure sealing.

Specifically, in the related art, in the pressure limiting valve sealing manner, the pressure limiting valve is located outside the sealed space formed by the lid assembly 100 and the pot body 202 during the cooking process, so that a corresponding pre-tightening force needs to be set to achieve the sealing performance, and for a large exhaust port, the pressure limiting load and the pre-tightening force are too large, which leads to an increase in cost.

The pot cover assembly 100 of the present scheme includes a pot cover 1, a first sealing member 2 and a connecting member 3. The connecting piece 3 is arranged on the cooker cover 1 and connected with the first sealing piece 2, so that the position stability of the first sealing piece 2 is ensured. The pot cover 1 is provided with at least one exhaust hole 111 for exhausting air. The first sealing member 2 is disposed corresponding to the bottom surface of the lid 1, and the bottom surface of the lid 1 faces the pot body 202, so that the lid assembly 100 can cover the pot body 202 to form a closed space during cooking.

Therefore, the first sealing member 2 is located at the lower side of the exhaust hole 111 corresponding to the entrance of the exhaust hole 111 during the cooking process, and therefore, the first sealing member 2 is located in the closed space formed by the lid assembly 100 and the pot body 202 during the cooking process, and the exhaust hole 111 can be sealed from the inside of the closed space, thereby implementing pressure cooking. When the pressure in the cooker is increased, the first sealing element 2 can be tightly attached to the cooker cover 1 due to the outward direction of the pressure, the larger the pressure is, the larger the attaching force is, the more reliable the sealing is, the sealing is not limited by the size of the exhaust hole 111, and the small exhaust hole 111 and the large exhaust hole 111 can be well sealed.

Therefore, the problem that the pressure limiting valve sealing mode in the prior art needs corresponding pretightening force and pressure limiting load, so that the cost is high is effectively solved, and the product cost is favorably reduced.

In one embodiment of the present application, the connection 3 is a spool 30, as shown in fig. 22. The valve core 30 is movably connected with the pot cover 1, and is used for reciprocating between an open position and a closed position relative to the pot cover 1, so as to drive the first sealing element 2 to open or close the at least one exhaust hole 111.

The connecting piece 3 adopts the valve core 30 movably connected with the cooker cover 1, the valve core 30 can reciprocate relative to the cooker cover 1, and then the first sealing element 2 is driven to reciprocate relative to the cooker cover 1, so that the first sealing element 2 opens or closes the exhaust hole 111. In the scheme, the valve core 30 plays a role of connecting the first sealing element 2, and ensures the good matching of the first sealing element 2 and the pot cover 1; the reciprocating motion of the first sealing element 2 is driven, so that other structures for driving the first sealing element 2 to move do not need to be additionally arranged, and the structure of the existing product with the valve core 30 is conveniently and properly improved, so that the product structure is simplified, and the product cost is further reduced.

Specifically, when the valve core 30 moves to the open position, the first sealing element 2 opens the exhaust hole 111, and the space in the pot is communicated with the external atmosphere, so that the exhaust and pressure relief are realized. When the valve core 30 moves to the closed position, the first sealing member 2 closes the exhaust hole 111, and the inner space of the pot is disconnected from the external atmosphere, thereby realizing pressure cooking.

Of course, the connection member 3 is not limited to the form of the spool 30. For example, the connecting member 3 may also be fixedly connected to the lid 1, the first sealing member 2 is movably connected to the connecting member 3, the first sealing member 2 may move up and down or rotate relative to the connecting member 3 to open or close the exhaust hole 111, or another structure for driving the first sealing member 2 to move may be additionally provided.

In one embodiment of the present application, the pot lid 1 is provided with a guide hole 1211. The valve core 30 is movably disposed through the guide hole 1211. The bottom of the valve core 30 is connected to the first sealing member 2 for driving the first sealing member 2 to move along the axial direction of the guide hole 1211.

The pot cover 1 is provided with the guide hole 1211, the valve core 30 is movably arranged in the guide hole 1211 in a penetrating mode, the top of the valve core 30 is located on the outer side of the pot cover 1, the bottom of the valve core 30 is located on the inner side of the pot cover 1 and is connected with the first sealing element 2, when the valve core 30 reciprocates along the guide hole 1211, the first sealing element 2 can be driven to move along the axial direction of the guide hole 1211, the structure and the principle are simple, and the product cost is further reduced.

Meanwhile, the guide hole 1211 can guide the movement of the valve element 30, and reduce the probability of the valve element 30 being inclined or displaced, thereby improving the reliability of the valve element 30.

Further, the axis of the guide hole 1211 is parallel to the axis of the discharge hole 111.

Thus, the moving direction of the valve core 30 is consistent with the pressure direction of the steam in the pot to the first sealing element 2, so that the first sealing element 2 is tightly attached to the pot cover 1 under the action of the steam pressure in the pot, and the valve core 30 is not inclined or displaced to interfere with the guide hole 1211.

Further, the axis of the guide hole 1211 and the axis of the discharge hole 111 extend in the vertical direction.

This facilitates both the upward rising escape of steam and the use of the weight of the valve element 30 and the first seal 2 as at least part of the driving force for moving the valve element 30 to the open position. Therefore, the driving force of the valve core 30 moving to the opening position can be reduced, the exhaust driving force is further reduced, the product structure is further simplified, and the product cost is further reduced.

In one embodiment of the present application, the pot lid 1 comprises: a cover body 11 and a holder 12, as shown in fig. 15. Wherein the cover body 11 is provided with the mounting hole 112 and the at least one exhaust hole 111, as shown in fig. 16 and 17. The fixing base 12 is fixedly connected with the cover body 11. The holder 12 includes a guide 121, as shown in fig. 21. The guide portion 121 is fixedly inserted into the mounting hole 112. The guide portion 121 is provided with the guide hole 1211 as shown in fig. 20 and 21.

The pot cover 1 comprises a cover body 11 and a fixed seat 12. The lid body 11 is a main body 52 of the lid 1, and is adapted to be covered with the body 202 of the pressure cooking device 200. The exhaust hole 111 is provided on the lid body 11 to realize the exhaust function of the pot lid 1. The fixed seat 12 is fixedly connected with the cover body 11 and used for installing the valve core 30 and realizing good matching with the valve core 30. The cover body 11 further has a mounting hole 112, the fixing base 12 correspondingly includes a guiding portion 121, the guiding portion 121 is fixedly disposed through the mounting hole 112, and a guiding hole 1211 is disposed to cooperate with the valve core 30 to guide the valve core 30.

This scheme is with 1 split of pot cover for covering body 11 and fixing base 12, is favorable to simplifying the respective structure of covering body 11 and fixing base 12, is convenient for cover body 11 and fixing base 12 according to product needs rational design to optimize the structure and the performance of product.

Further, the fixing connection between the fixing seat 12 and the cover body 11 may be, but is not limited to: screw connection, riveting, interference fit fixing, welding and the like.

In one embodiment of the present application, the bottom surface of the closure body 11 includes a sealing surface 113, as shown in FIG. 17. The exhaust hole 111 and the mounting hole 112 penetrate the sealing surface 113. The number of the exhaust holes 111 is plural, and as shown in fig. 16, the exhaust holes 111 are provided at intervals in the circumferential direction of the mounting hole 112.

The bottom surface of the cover body 11 is provided with a sealing surface 113, the exhaust holes 111 and the mounting holes 112 are both arranged at the position of the sealing surface 113 and penetrate through the sealing surface 113, so that the distance between the exhaust holes 111 and the mounting holes 112 is favorably reduced, the processing and forming are convenient, the size of the first sealing element 2 is favorably reduced, and the product cost is further reduced.

Further, the plurality of exhaust holes 111 are provided at intervals along the circumferential direction of the mounting hole 112, which facilitates both rapid exhaust of the pressure cooking appliance 200 and reduction in size of the single exhaust hole 111. Compared with the single exhaust hole 111 with a large size, the exhaust holes 111 with the small sizes are beneficial to dispersing the steam pressure received by the first sealing element 2, so that the probability of failure of the first sealing element 2 is reduced, and the sealing difficulty of the first sealing element 2 to the exhaust hole 111 is also reduced, thereby improving the sealing reliability.

Simultaneously, this scheme also is convenient for utilize a first sealing member 2 to come the control of realizing a plurality of exhaust holes 111 switching simultaneously to further simplify product structure, further reduce product cost.

In addition, this scheme also is favorable to first sealing member 2 to adopt the structure of circumference symmetry, like discoid structure, is favorable to the atress between first sealing member 2 and the case 30 balanced, further improves case 30 and first sealing member 2's use reliability.

In one embodiment of the present application, the lid assembly 100 further comprises: a first elastic return member 4, as shown in fig. 15. The first elastic restoring member 4 is engaged with the valve core 30, and is configured to drive the valve core 30 to move from the open position to the closed position by using a restoring elastic force thereof, so that the first sealing member 2 closes the exhaust hole 111.

The lid assembly 100 further comprises a first elastic restoring member 4. The first elastic reset piece 4 is matched with the valve core 30, and the elastic deformation amount is gradually increased in the process that the valve core 30 moves from the closing position to the opening position, so that the elastic potential energy is stored. Therefore, under the condition that the valve core 30 is not subjected to other external forces, the first elastic resetting piece 4 releases elastic potential energy, and is reset and deformed, so that the valve core 30 is driven to move from the opening position to the closing position, and the first sealing element 2 closes the exhaust hole 111.

So, at the initial stage of the culinary art process, when the pressure was lower relatively in the pot promptly, exhaust hole 111 also can be sealed to first sealing member 2, realizes the initial self sealss of first sealing member 2, and this is favorable to the interior material high efficiency of cooking of pot to be heated to improve heating efficiency, shorten the culinary art duration. When the stage of needing exhaust is reached, the exhaust hole 111 can be opened by the first sealing element 2 only by driving the valve plug 30 to move to the opening position, so that the exhaust and pressure relief are realized.

In an embodiment of the present application, further, the first elastic restoring element 4 is sleeved on the valve core 30, as shown in fig. 15, and the valve core 30 is provided with a supporting surface 31, as shown in fig. 23. One end of the first elastic reset piece 4 is contacted with the supporting surface 31, and the other end of the first elastic reset piece 4 is contacted with the pot cover 1.

The valve core 30 is provided with a support surface 31, and the support surface 31 is used for limiting the first elastic restoring member 4. During assembly, the first elastic reset piece 4 is sleeved on the valve core 30, so that one end of the first elastic reset piece 4 is contacted with the supporting surface 31, and the other end of the first elastic reset piece 4 is contacted with the pot cover 1. When the valve core 30 moves from the closed position to the open position relative to the pot cover 1, the first elastic reset piece 4 can be compressed, so that the first elastic reset piece 4 stores elastic potential energy, and further, under the condition that the valve core 30 is not subjected to other external forces, the first elastic reset piece 4 can drive the valve core 30 to move from the open position to the closed position by utilizing the reset elastic force of the first elastic reset piece 4, and the initial self-sealing of the first sealing piece 2 is realized.

The first elastic reset piece 4 is sleeved on the valve core 30, so that the circumferential stress balance between the first elastic reset piece 4 and the valve core 30 is facilitated, the probability that the first elastic reset piece 4 and the valve core 30 incline, shift and the like is reduced, and the use reliability of the first elastic reset piece 4 and the valve core 30 is improved.

Further, a support convex edge may be provided on the valve core 30, and the support convex edge forms a support surface 31 on the surface facing the pot cover 1. The support surface 31 extends in the circumferential direction of the valve body 30 and has an annular shape. This is advantageous to increase the contact area of the supporting surface 31 and the first elastic restoring member 4, thereby improving the reliability of the fit between the supporting surface 31 and the first elastic restoring member 4.

Wherein, first elasticity resets 4 and is the spring, simple structure, and is with low costs.

Further, the fixing base 12 of the pot lid 1 comprises an abutment surface 123, as shown in fig. 21. The other end of the first elastic reset piece 4 is in contact with the abutting surface 123 of the fixed seat 12. For the scheme that first elasticity resets 4 and the lid body 11 of pot cover 1 contacts, this scheme is favorable to reducing the radial dimension that first elasticity resets 4 to further reduce product cost.

In an embodiment of the present application, further, the lid assembly 100 further includes: second seal 5, as shown in fig. 15. The second sealing member 5 is sleeved on the valve core 30 and encloses an installation space 13 with the valve core 30 and the pot cover 1. As shown in fig. 15, the first elastic restoring member 4 is located in the installation space 13.

The lid assembly 100 further includes a second sealing member 5, the second sealing member 5 is sleeved on the valve core 30, the second sealing member can enclose an installation space 13 with the valve core 30 and the lid 1, and the first elastic restoring member 4 is located in the installation space 13. Thus, when the valve core 30 moves to the open position, and the second sealing member 5 opens the vent hole 111, the soup, foam, steam and the like in the pot passing through the vent hole 111 are blocked by the second sealing member 5 and cannot directly contact the portion of the valve core 30 located in the installation space 13 and the first elastic restoring member 4.

Like this, be favorable to avoiding pollution and the corruption of material such as hot water juice, foam, steam to case 30 and first elasticity piece 4 that resets, be favorable to the life of the product of extension, also need not to unpack parts such as case 30, first elasticity piece 4 apart completely and wash, therefore reduced the washing degree of difficulty of product.

Meanwhile, the situation that substances such as soup and the like are accumulated for a long time to cause blockage between the valve core 30 and the cooker cover 1 or between the valve core 30 and the first elastic resetting piece 4 is avoided, and the use reliability of the product is improved.

In one embodiment of the present application, in particular, as shown in fig. 16, the second seal 5 comprises: a first connection portion 51, a body portion 52, and a second connection portion 53.

Wherein the first connection portion 51 is connected to the top of the valve spool 30. The top of the main body 52 is connected to the first connection portion 51. The second connecting portion 53 is connected to the bottom of the main body portion 52 and is connected to the pot lid 1.

The second seal member 5 includes a first connection portion 51, a body portion 52, and a second connection portion 53, and the first connection portion 51, the body portion 52, and the second connection portion 53 are connected in this order from top to bottom. The first connection portion 51 is located on the top of the second sealing member 5 and connected to the top of the valve core 30, so as to realize the connection function of the second sealing member 5 and the valve core 30. The main body 52 is located in the middle of the second sealing member 5, and is a part of the main body 52 of the second sealing member 5, and has a certain gap with the valve core 30 to ensure the formation of the installation space 13. The second connecting part 53 is located at the bottom of the second sealing member 5 and connected with the pot cover 1, so as to realize the connecting function of the second sealing member 5 and the pot cover 1.

Further, the second connecting portion 53 is specifically connected to the fixing base 12 of the pot cover 1.

In one embodiment of the present application, specifically, the first connecting portion 51 includes a stopper rib 511, as shown in fig. 16 and 17. The top of the valve core 30 is provided with a limit groove 32, as shown in fig. 22 and 23. The limiting rib 511 is engaged with the limiting groove 32.

First connecting portion 51 includes spacing muscle 511, and the top of case 30 corresponds and is equipped with spacing groove 32, goes into spacing groove 32 with spacing muscle 511 card during the assembly, can realize the joint cooperation of second sealing member 5 and case 30, simple structure, and the assembly is convenient.

Of course, the connection manner of the first connection portion 51 and the valve body 30 is not limited thereto. Such as: the positions of the limiting rib 511 and the limiting groove 32 can also be exchanged, the limiting rib 511 is arranged at the top of the valve core 30, and the first connecting part 51 correspondingly comprises the limiting groove 32; alternatively, the first connection portion 51 includes a hooking protrusion 531, and the top of the valve core 30 is correspondingly provided with a clamping edge 122.

In one embodiment of the present application, in particular, the second connection part 53 includes a hooking protrusion 531, as shown in fig. 19. The lid 1 is provided with a catch 122, as shown in fig. 21. The hooking protrusion 531 is hooked on the catching edge 122.

The second connecting portion 53 includes a hooking protrusion 531, the pot cover 1 is correspondingly provided with a clamping edge 122, the hooking protrusion 531 is hooked on the clamping edge 122 during assembly, and the hooking cooperation between the second sealing element 5 and the pot cover 1 can be realized.

When the first connection portion 51 includes the limiting rib 511, the top of the valve core 30 is correspondingly provided with the limiting groove 32, and the second connection portion 53 includes the hooking protrusion 531, and the pot cover 1 is correspondingly provided with the clamping edge 122, the limiting rib 511 can be firstly clamped into the limiting groove 32, and then the hooking protrusion 531 is pressed, so that the hooking protrusion 531 is hooked on the clamping edge 122. Alternatively, the hooking protrusion 531 may be hooked on the clamping edge 122, and then the limiting rib 511 may be pressed to clamp the limiting rib 511 into the limiting groove 32.

Of course, the connection manner of the second connection part 53 and the pot cover 1 is not limited thereto. Such as: the positions of the hooking protrusion 531 and the clamping edge 122 can also be exchanged, the hooking protrusion 531 is arranged on the pot cover 1, and the second connecting part 53 correspondingly comprises the clamping edge 122; or, the second connecting portion 53 includes a limiting rib 511, and the pot cover 1 is correspondingly provided with a limiting groove 32.

In an embodiment of the present application, further, for the solution that the first connecting portion 51 includes the limiting rib 511, the limiting rib 511 is disposed in a ring shape along the circumferential direction of the second sealing member 5, as shown in fig. 18. The stopper groove 32 engaged with the stopper rib 511 is formed in a ring shape corresponding thereto, as shown in fig. 22.

When the first connecting portion 51 includes the stopper rib 511, the stopper rib 511 extends in the circumferential direction of the second seal member 5 to form a ring structure. Accordingly, the limit groove 32 at the top of the valve core 30 also extends along the circumferential direction of the valve core 30 to form an annular structure. Thus, the annular limiting rib 511 is engaged with the annular limiting groove 32, so that the contact area between the second sealing element 5 and the valve core 30 is effectively increased, and the connection reliability between the second sealing element 5 and the valve core 30 is improved.

Meanwhile, a circumferential seal is formed at the top of the valve core 30, so that substances such as soup, foam and steam can be effectively prevented from entering the installation space 13 through a gap between the second sealing element 5 and the valve core 30, and the sealing reliability of the second sealing element 5 is improved.

In an embodiment of the present application, further, for a scheme in which the second connecting portion 53 includes a hooking protrusion 531, the hooking protrusion 531 is disposed in a ring shape along a circumferential direction of the second sealing member 5, as shown in fig. 18. The contour line of the longitudinal section of the hooking protrusion 531 is circular as shown in fig. 19. The catching edge 122 hooked to the hooking protrusion 531 is formed in a ring shape, and as shown in fig. 20, the catching edge 122 is a curled edge.

When the second connection part 53 includes the hooking protrusion 531, the hooking protrusion 531 extends in a circumferential direction of the second sealing member 5 to form a ring structure. Accordingly, the clamping edge 122 of the lid 1 also extends along the circumference of the second sealing member 5 to form a ring structure. Thus, the annular hooking protrusion 531 hooks the annular clamping edge 122, which effectively increases the contact area between the second sealing member 5 and the pot cover 1, and is beneficial to improving the connection reliability between the second sealing member 5 and the pot cover 1.

Meanwhile, circumferential sealing is formed between the second sealing element 5 and the pot cover 1, so that substances such as soup, foam and steam can be effectively prevented from entering the mounting space 13 through the second sealing according to the gap between the substances and the pot cover 1, and the sealing reliability of the second sealing element 5 is improved.

Further, the card edge 122 is a curled edge, which is convenient for processing and forming through a winding form, and reduces the processing difficulty, while the contour line of the longitudinal section of the hooking protrusion 531 is circular, and is matched with the shape of the curled edge well.

In one embodiment of the present application, further, the longitudinal section of the body portion 52 is corrugated, as shown in fig. 19.

When the longitudinal section of the main body 52 is corrugated, the second sealing member 5 has a plurality of corrugated structures, which is beneficial to increase the longitudinal deformation capability of the second sealing member 5, and is convenient for the second sealing member 5 to be deformed in a stretching manner during the reciprocating motion of the valve core 30 relative to the pot cover 1. Therefore, the second sealing member 5 does not influence the movement of the valve core 30, and the movement of the valve core 30 does not influence the sealing capability of the second sealing member 5, thereby effectively improving the use reliability of the second sealing member 5 and the valve core 30.

In one embodiment of the present application, further, the cross-sectional area of the main body portion 52 increases from the top of the main body portion 52 to the bottom of the main body portion 52, as shown in fig. 19.

The cross-sectional area of the body portion 52 increases from the top of the body portion 52 to the bottom of the body portion 52. Thus, the cross-sectional area of the mounting space 13 is increased from top to bottom, and the radial dimension of the first elastic restoring member 4 can also be increased from top to bottom. Compared with the scheme that the radial dimension is kept unchanged, the scheme is favorable for improving the reset elasticity of the first elastic reset piece 4, so that the reliability of the initial self-sealing of the first sealing piece 2 is improved; the stability of the first elastic reset piece 4 is improved, and the probability of the first elastic reset piece 4 inclining, shifting and the like is further reduced.

In an embodiment of the present application, further, the lid assembly 100 further includes: the drive mechanism 6 is shown in fig. 14. Wherein, the driving mechanism 6 is arranged on the pot cover 1, is matched with the valve core 30 and is used for driving the valve core 30 to move.

The cooker lid assembly 100 further comprises a driving mechanism 6, wherein the driving mechanism 6 is arranged on the cooker lid 1 and is used for driving the valve core 30 to move, and the driving force is provided for the movement of the valve core 30 through the cooperation with the valve core 30. The indirect movement of the valve core 30 can be realized only by reasonably setting the position and the form of the driving structure. The scheme is convenient for reasonably designing the shape of the valve core 30 according to the requirement, and is convenient for hiding the valve core 30 in the pressure cooking appliance 200, thereby preventing the external substances from influencing the movement of the valve core 30, and being beneficial to further improving the use reliability of the valve core 30.

It should be noted that the driving mechanism 6 can drive the valve plug 30 to move in one direction, such as driving the valve plug 30 from the open position to the closed position, or driving the valve plug 30 from the closed position to the open position; the driving mechanism 6 can also drive the valve plug 30 to move bidirectionally, namely: the valve plug 30 can be driven to move from the open position to the closed position, and the valve plug 30 can also be driven to move from the closed position to the open position. Of course, the drive mechanism 6 may be eliminated and the movement of the valve element 30 may be driven manually.

In one embodiment of the present application, in particular, the drive mechanism 6 comprises: a movable element 61 and an interlocking lever 62.

Wherein, the moving piece 61 is movably connected with the pot cover 1. The linking lever 62 is rotatably connected to the lid 1 and is linked with the movable member 61. One end of the linking lever 62 is engaged with the top of the valve core 30, as shown in fig. 15, and is used for pressing the valve core 30 under the driving of the movable element 61 to drive the valve core 30 to move from the closed position to the open position.

The drive mechanism 6 includes a movable piece 61 and an interlock lever 62. The moving member 61 is movably connected with the pot cover 1 and can move relative to the pot cover 1, and the linkage lever 62 is rotatably connected with the pot cover 1 and can rotate relative to the pot cover 1. Moreover, the linking lever 62 is linked with the moving member 61, and when the moving member 61 moves relative to the pot cover 1, the linking lever 62 can be driven to move. Because one end of the linkage lever 62 is matched with the top of the valve core 30, the linkage lever 62 can press the valve core 30, and further drives the valve core 30 to move from the closing position to the opening position.

On the contrary, for the pot lid assembly 100 including the scheme of the first elastic reset piece 4, when the moving piece 61 moves reversely, the pressing effect of the linkage lever 62 on the valve core 30 is released, the valve core 30 can move upwards under the reset elastic effect of the first elastic reset piece 4, and then the valve core 30 is driven to move from the open position to the closed position, so that the initial self-sealing of the first sealing piece 2 is realized.

For the scheme that the pot cover assembly 100 does not include the first elastic reset piece 4, when the movable piece 61 moves reversely, the pressing effect of the linkage lever 62 on the valve core 30 is released, and when the steam pressure in the pot increases, the first sealing piece 2 moves upwards under the action of the steam pressure, and can drive the valve core 30 to move upwards, so that the valve core 30 moves from the open position to the closed position.

In an embodiment of the present application, further, the lid assembly 100 further includes: a second elastic return element 7, as shown in fig. 14. The second elastic reset member 7 is engaged with the movable member 61, and is configured to drive the movable member 61 to reset by using a reset elastic force thereof, so that the linkage lever 62 is disengaged from the valve element 30.

The lid assembly 100 further comprises a second elastic return member 7. The second elastic reset member 7 is engaged with the movable member 61, and is configured to drive the movable member 61 to reset by using a reset elastic force thereof, so that the linking lever 62 is disengaged from the valve element 30. According to the scheme, the automatic resetting of the movable piece 61 and the linkage lever 62 can be realized, and the manual operation of a user is not needed, so that the operation difficulty of the pressure cooking appliance 200 is reduced, and the use experience of the user is improved.

Specifically, the movable member 61 may be, but is not limited to, a pressing rod. The second elastic restoring member 7 may be, but is not limited to, a spring. The spring is sleeved on the pressing rod, one end of the spring is abutted against a limiting structure (such as a limiting bulge) of the pressing rod, and the other end of the spring is abutted against a limiting structure (such as a limiting bulge) on the pot cover 1. The interlocking lever 62 is located below the pressing rod, and the portion where the interlocking lever 62 is engaged with the movable element 61 and the portion where the interlocking lever 62 is engaged with the valve element 30 are located on the same side of the fulcrum of the interlocking lever 62. Thus, when the pressing rod moves downwards, the linkage lever 62 rotates relative to the pot cover 1 and presses the valve core 30 to drive the valve core 30 to move downwards, so that the first sealing element 2 is separated from the pot cover 1 to open the exhaust hole 111.

Further, the driving mechanism 6 further includes a knob, the knob is located above the movable member 61, and one of the knob and the movable member 61 is provided with a driving inclined plane, so that when the knob rotates, the movable member 61 is driven to move downwards, and the linkage lever 62 is driven to press the valve element 30, and the exhaust hole 111 is opened to exhaust.

Further, the lid assembly 100 includes a steam valve having an exhaust passage, the exhaust hole 111 is located at a steam inlet of the exhaust passage, and the valve core 30 is a valve core 30 of the steam valve. The knob can rotate between an exhaust position and a pressure maintaining position, and when the knob rotates to the exhaust position, the movable piece 61 is driven to move downwards, and then the linkage lever 62 is driven to press the valve core 30, and the exhaust hole 111 is opened to exhaust; when the knob is rotated to the pressure maintaining position, the movable member 61 and the linkage lever 62 are reset under the reset elastic force of the second elastic reset member 7, the first sealing member 2 and the valve core 30 move upwards under the reset elastic force of the first elastic reset member 4, and the first sealing member 2 seals the exhaust hole 111.

Further, the lid assembly 100 further includes a face cover and a third sealing member 8. The surface cover is covered on the pot cover 1. The third sealing element 8 is arranged between the flour cover and the pot cover 1 and is used for preventing soup, steam and the like in the pot from entering the flour cover.

In one embodiment of the present application, further, the bottom of the valve core 30 is provided with a first snap projection 33, as shown in fig. 22 and 23. The first sealing member 2 is provided with a first catching groove 211 as shown in fig. 24 and 25. The first engaging protrusion 33 engages with the first engaging groove 211.

Establish first card protruding 33 in the bottom of case 30, first sealing member 2 is corresponding sets up first draw-in groove 211, makes first card protruding 33 card go into first draw-in groove 211 during the assembly, can realize the joint cooperation of case 30 and first sealing member 2, simple structure, and the assembly is convenient.

In an embodiment of the present application, further, the bottom of the valve core 30 is provided with a second locking groove 34, as shown in fig. 22 and 23. The first seal member 2 is provided with a second snap projection 212 as shown in fig. 24 and 25. The second protrusion 212 is engaged with the second slot 34.

Establish second draw-in groove 34 in the bottom of case 30, first sealing member 2 sets up the protruding 212 of second card correspondingly, makes the protruding 212 card of second card go into in the second draw-in groove 34 during the assembly, can realize the joint cooperation of case 30 and first sealing member 2, simple structure, and the assembly is convenient.

Further, when the bottom of the valve core 30 is provided with the first clamping groove 33 and the second clamping groove 34, and the first sealing element 2 is correspondingly provided with the first clamping groove 211 and the second clamping groove 212, the valve core 30 and the first sealing element 2 form a mutual concave-convex matched structure after assembly is completed, so that double clamping matching is realized, the contact area between the valve core 30 and the first sealing element 2 is effectively increased, and the connection reliability between the valve core 30 and the first sealing element 2 is further improved.

Of course, the manner of connection of the spool 30 to the first seal 2 is not limited thereto. Such as: the valve core 30 and the first sealing member 2 may be connected by bonding, screwing, or the like.

In an embodiment of the present application, further, the first seal 2 comprises: a sealing body 21 and a skirt 22, as shown in fig. 24 and 25. Wherein, the sealing body 21 is disposed corresponding to the at least one vent hole 111, and is connected to the connecting member 3 for opening or closing the at least one vent hole 111. The skirt 22 is connected to the outer periphery of the sealing body 21 and is disposed obliquely with respect to the sealing body 21 for abutting against the lid 1.

The first seal 2 comprises a seal body 21 and a skirt 22. The sealing main body 21 is a main body 52 of the first sealing element 2, and is disposed corresponding to the vent hole 111 of the pot lid 1, and is used for opening or closing the vent hole 111, so as to realize the matching function of the first sealing element 2 and the vent hole 111. The seal body 21 is connected to the connector 3, and functions to connect the first seal member 2 to the connector 3. The skirt 22 is connected with the outer periphery of the sealing main body 21 and can be abutted against the pot cover 1, so that the first sealing element 2 is tightly attached to the pot cover 1.

Meanwhile, the skirt 22 is obliquely arranged relative to the sealing main body 21, so that under the action of different pressures in the cooker, the attaching degree of the skirt 22 and the cooker cover 1 can be correspondingly changed, the contact area of the skirt 22 and the cooker cover 1 is correspondingly changed, the larger the pressure in the cooker is, the larger the attaching degree of the skirt 22 and the cooker cover 1 is, the larger the contact area of the skirt 22 and the cooker cover 1 is, and the larger the sealing reliability of the first sealing element 2 is. This scheme is favorable to reducing the effort between sealed main part 21 and the pot lid 1, and then improves sealed main part 21's use reliability.

In any of the above embodiments, the pressure cooking appliance 200 comprises an electric pressure cooker or a pressure cooker.

An embodiment of the fourth aspect of the present application provides a computer-readable storage medium, on which a program or an instruction is stored, where the program or the instruction, when executed, implements the steps of the control method according to any one of the embodiments of the first aspect, so that all the advantages of any one of the embodiments described above are achieved, and are not described herein again.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may 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, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In this application, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A control method for a pressure cooking appliance, wherein the pressure cooking appliance is provided with a non-pressure exhaust channel and a pressure exhaust channel, and the cross-sectional area of the non-pressure exhaust channel is larger than that of the pressure exhaust channel, the control method comprising:

judging whether the non-pressure exhaust channel is in an open state;

and sending a reminding signal whether to operate in a non-pressure cooking mode or not based on the fact that the non-pressure exhaust channel is in an open state.

2. The control method according to claim 1, characterized by further comprising:

controlling the pressure cooking appliance to operate in the pressureless cooking mode based on receiving an instruction to operate in the pressureless cooking mode.

3. The control method according to claim 2, characterized by further comprising:

judging whether the accumulated time of the pressure cooking appliance running in the non-pressure cooking mode reaches a first set time;

and finishing the cooking based on that the accumulated time of the pressure cooking appliance running in the non-pressure cooking mode reaches the first set time.

4. The control method according to claim 2, characterized by further comprising:

and sending a reminding signal for switching to the pressure cooking mode to operate based on the received instruction of not operating in the non-pressure cooking mode, and returning to execute the step of judging whether the non-pressure exhaust channel is in the open state.

5. The control method according to any one of claims 1 to 4, characterized by further comprising:

controlling the pressure cooking appliance to operate in a pressure cooking mode based on the non-pressure exhaust passage being in a closed state.

6. The control method according to claim 5, characterized by further comprising:

judging whether a pressure switch of the pressure cooking appliance is disconnected or not in the process of controlling the pressure cooking appliance to operate in a pressure cooking mode;

and controlling the pressure cooking appliance to be switched to the pressure maintaining mode to operate based on the disconnection of the pressure switch.

7. The control method according to claim 6, characterized by further comprising:

judging whether the accumulated time of the pressure cooking appliance running in the pressure maintaining mode reaches a second set time;

and finishing the cooking based on that the accumulated time length of the pressure cooking appliance running in the pressure maintaining mode reaches the second set time length.

8. The control method according to any one of claims 1 to 4, wherein the pressure cooking appliance includes a pressure limiting valve, a driving mechanism, and a detecting mechanism; the pressure limiting valve is arranged at the pressure exhaust channel; the driving mechanism is arranged at the non-pressure exhaust channel, is suitable for moving between an opening position and a closing position and is used for opening or closing the non-pressure exhaust channel; the detection mechanism is used for detecting the position of the driving mechanism;

the step of judging whether the non-pressure exhaust channel is in an open state specifically comprises:

determining a detection result of the detection mechanism;

judging whether the non-pressure exhaust channel is in an open state or not according to the detection result of the detection mechanism;

determining that the pressureless exhaust passage is in a closed state based on the detection mechanism detecting that the driving mechanism moves to the closed position;

9. The control method according to claim 8,

the pressure exhaust channel, the non-pressure exhaust channel, the pressure limiting valve and the driving mechanism are all arranged on a pot cover of the pressure cooking appliance;

the detection mechanism comprises a magnetic piece and a magnetic induction element, one of the magnetic piece and the magnetic induction element is in linkage fit with the driving mechanism, and the other one is arranged on a pot body of the pressure cooking appliance;

the step of determining the detection result of the detection mechanism specifically includes:

determining a detection result of the detection mechanism according to the output signal of the magnetic induction element;

determining that the driving mechanism moves to the open position based on the output signal of the magnetic induction element being a first setting signal;

10. The control method according to claim 9,

the magnetic induction element is a reed switch or a Hall sensor.

11. The control method according to claim 9, wherein the drive mechanism includes:

the moving piece is movably connected with the pot cover; and

and the linkage lever is rotatably connected with the pot cover and is in linkage fit with the movable piece, one end of the linkage lever is in linkage fit with the magnetic piece, and the other end of the linkage lever is arranged corresponding to the non-pressure exhaust channel and is used for opening or closing the non-pressure exhaust channel.

12. A control device for a pressure cooking appliance, comprising:

a memory storing programs or instructions; and

a processor implementing the steps of the control method of any one of claims 1 to 11 when executing the program or instructions.

13. A pressure cooking appliance, comprising:

the cooking body is provided with a non-pressure exhaust channel and a pressure exhaust channel, and the cross section area of the non-pressure exhaust channel is larger than that of the pressure exhaust channel; and

the control device of claim 12, electrically connected to the cooking body for controlling an operation mode of the pressure cooking appliance.

14. A computer storage medium having a program or instructions stored thereon, which when executed, implement the steps of the control method of any one of claims 1 to 11.