CN220512670U - Pressure cooking apparatus - Google Patents

Abstract

The utility model relates to the technical field of cooking devices, in particular to pressure cooking equipment, which comprises: the shell comprises a box body and a door body, wherein a containing cavity is arranged in the box body, an opening is formed in one side surface of the box body in the containing cavity, and the door body is connected to the opening of the box body and used for opening or closing the opening; the inner container is arranged in the accommodating cavity and can move out of the accommodating cavity relative to the box body; the inner pot assembly comprises a pot body arranged in the inner container and a cover body covered at an opening of the pot body; the pressure regulating device is arranged on the cover body and the shell and is used for regulating the air pressure in the pot body. The pressure cooking equipment is higher than the existing pressure cooker in safety performance, can be installed in an embedded mode, and is convenient for decoration design of a kitchen.

Description

Pressure cooking apparatus

Technical Field

The utility model relates to the technical field of cooking devices, in particular to pressure cooking equipment.

Background

The pressure cooker is a common kitchen equipment, and the general working principle is that food materials and liquid in the cooker are heated by a heat source, the pressure in the cooker is continuously increased due to vaporization of the liquid along with the heating process, and the boiling point of the liquid is increased along with the increase of the pressure, so that the pressure in the cooker can delay the boiling time of the liquid in the cooker, and the food materials in the cooker can be quickly cured.

The pressure release exhaust valve is often arranged on the existing pressure cooker, and when the pressure in the cooker reaches the preset pressure, part of the gas in the cooker is discharged by the pressure release exhaust valve, so that the pressure in the cooker is limited in a safe range. However, in actual use, various reasons such as blockage of the exhaust port by food materials, failure of the pressure release exhaust valve and the like cause various potential safety hazards in the use of the pressure cooker.

Disclosure of Invention

Based on this, it is necessary to provide a pressure cooking apparatus with better use safety in view of the above-mentioned problems.

A pressure cooking apparatus, the pressure cooking apparatus comprising:

the shell comprises a box body and a door body, wherein a containing cavity is arranged in the box body, an opening is formed in one side surface of the box body in the containing cavity, and the door body is connected to the opening of the box body and used for opening or closing the opening;

the inner container is arranged in the accommodating cavity and can move out of the accommodating cavity relative to the box body;

the inner pot assembly comprises a pot body arranged in the inner container and a cover body covered at an opening of the pot body;

the pressure regulating device is arranged on the cover body and the shell and is used for regulating the air pressure in the pot body.

In the pressure cooking equipment, the inner container and the inner pot assembly arranged in the inner container are arranged in the shell, so that even if pressure regulation failure occurs in the inner pot assembly due to various reasons, the shell can be dangerously diffused to a certain extent; meanwhile, as the outer shell is arranged outside the inner container, the inner container can be arranged into a shape convenient for embedding and mounting, for example, the inner container is made into a shape similar to that of a dish washer, a steaming oven and the like, so that the integral pressure cooking equipment can be embedded and mounted in a kitchen, the space on a table top in the kitchen can be saved, the integral kitchen arrangement becomes tidy and attractive, and in addition, compared with a mode of being placed on the kitchen table top, the embedded mounting can further improve the use safety. The inner pot component can move out of the accommodating cavity along with the inner container relative to the box body, so that a user can put in and take out food materials in the pot body conveniently. The pressure regulating device arranged on the cover body and the shell enables the interior of the pot body to exchange gas with the exterior of the shell, so that the air pressure in the inner pot component can be stabilized in the normal working range and is not influenced by the shell.

In one embodiment, the cover body is provided with a first exhaust port; the box body is provided with a second exhaust port which is communicated with the accommodating cavity to the outside; the pressure regulating device comprises a first pressure regulating valve and a second pressure regulating valve which are respectively arranged at the first exhaust port and the second exhaust port.

The pressure regulating valve on the cover body and the box body can work respectively or simultaneously, so that the air pressure in the pot body can be regulated more flexibly, and the cooking requirement of a user is met.

In one embodiment, the top plate of the box body is internally provided with a gas storage cavity, the top plate is provided with a third gas outlet which is communicated with the gas storage cavity to the accommodating cavity, and the second gas outlet is used for communicating the gas storage cavity to the outside.

So set up, exhaust gas gets into the holding chamber at first in the interior pot subassembly, after the third gas vent is opened, and gas can get into the gas storage chamber, and after the second gas vent is opened, the gas storage chamber can further carry out gas communication with outside, so can realize tertiary exhaust accuse pressure.

In one embodiment, the following ratio is satisfied among the volume V1 in the pot body, the volume V2 of the accommodating cavity after the liner is removed, and the volume V3 of the air storage cavity: v1:v2:v3=1:2:3.5.

By the arrangement, the space configuration in the pressure cooking equipment can be optimized, so that the space requirement of three-stage pressure regulation can be well adapted.

In one embodiment, the pressure cooking apparatus further comprises a drawer slidably disposed in the case, and the liner is mounted to the drawer.

So set up, need put into food material and suitable form liquid into the pot body before the culinary art begins, and need take out the food in the pot body and carry out suitable form cleanness after the culinary art finishes, through the drawer for the mode of box pull removal, can be with the inner bag and the interior pot subassembly that install in the drawer outside the box altogether, thereby the user is convenient for take out interior pot subassembly from the inner bag, in order to put into food material into the pot body, perhaps take out the food after the culinary art finishes from the pot body, perhaps carry out necessary cleanness to interior pot subassembly again.

In one embodiment, the pressure regulating device further includes a third pressure regulating valve disposed at the third exhaust port.

The setting like this, the position of gas storage chamber can form second level pressure regulating position, and like this, lid, third gas vent and second gas vent are provided with three air-vent valve respectively, can carry out tertiary accurate pressure regulating to the pot body is inside to guarantee the safety in utilization of equipment, and satisfy the various culinary art demands of user.

In one embodiment, the first pressure regulating valve comprises a driving piece, a connecting piece and a valve core, wherein the valve core is connected to the motion output end of the driving piece through the connecting piece and can move under the driving of the driving piece so as to change the ventilation area of the first exhaust port.

The valve core is arranged on the first air vent, the valve core is connected with the first air vent, the valve core is arranged on the second air vent, and the valve core is connected with the first air vent.

In one embodiment, the second pressure regulating valve and the third pressure regulating valve have the same structure as the first pressure regulating valve.

The pressure regulating valve with the corresponding structure is selected, so that the three pressure regulating valves can realize the adjustment of the set pressure, and the positions of valve cores in the three pressure regulating valves are adjusted by an electric control means, so that the set pressures of the three pressure regulating valves are the same or different, and the whole cooking process can be regulated and controlled more flexibly.

In one embodiment, the pressure cooking device further includes a microprocessor, and a sensor disposed on the cover, where when the sensor detects that the air pressure and/or the temperature in the pot body reach a first preset value, the microprocessor controls the driving member to act according to a detection result of the sensor, so as to drive the valve core to change the ventilation area of the first exhaust port.

The arrangement is that the sensor is used for detecting the air pressure and/or the temperature in the pot body, so that whether the internal pressure is required to be regulated through the first air outlet and the first pressure regulating valve can be accurately judged.

In one embodiment, when the sensor detects that the air pressure and/or the temperature in the pot body reach a second preset value, the microprocessor respectively controls the first pressure regulating valve and the third pressure regulating valve to act according to the detection result of the sensor, so that the air pressure exchange is performed between the interior of the pot body and the accommodating cavity through the first air outlet, and the air pressure exchange is performed between the accommodating cavity and the air storage cavity through the third air outlet, wherein the second preset value is larger than the first preset value; the method comprises the steps of,

when the sensor detects that the air pressure and/or the temperature in the pot body reach a third preset value, the microprocessor controls the first pressure regulating valve, the third pressure regulating valve and the second pressure regulating valve to act according to the detection result of the sensor, so that the air pressure exchange is carried out between the inner part of the pot body and the outside through the first air outlet, the third air outlet and the second air outlet in sequence, wherein the third preset value is larger than the second preset value.

The first pressure regulating valve is started to enable the interior of the pot body and the accommodating cavity to exchange air pressure, so that the pressure in the pot body can be initially released to the accommodating cavity; when the pressure exchange is difficult to meet the pressure adjustment requirement in the pot body, the sensor can detect that the pressure and/or the temperature in the pot body reach a second preset value higher than the first preset value, and at the moment, the first pressure regulating valve and the third pressure regulating valve are controlled to work so that the accommodating cavity can exchange the pressure with the gas storage cavity; when the two-stage air pressure exchange still cannot meet the pressure adjustment requirement, the three pressure regulating valves all enter the working state, so that the air storage cavity can further exchange air pressure with the outside through the second air outlet, and the pot body is communicated with the outside of the shell through the three open air outlets, so that the cooking pressure in the pot body can be accurately regulated and controlled, and the practical safety of the pressure cooking equipment is furthest ensured while the pressure and temperature requirements of cooking are met.

Drawings

Fig. 1 is a schematic structural view of a pressure cooking apparatus according to an embodiment of the present utility model;

fig. 2 is a schematic view of the structure shown in fig. 1 with the housing omitted.

Reference numerals:

100. a housing; 10. a case; 101. a receiving chamber; 102. a gas storage chamber; 1021. a third exhaust port; 1022. a second exhaust port; 11. a door body;

200. an inner container; 20. a liner body; 21. a heating member;

300. an inner pot assembly; 30. a pot body; 31. a cover body; 311. a first exhaust port;

400. a first pressure regulating valve; 40. a driving member; 41. a connecting piece; 42. a valve core;

500. a sensor;

600. and (5) stopping opening the valve.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 and 2, a schematic structure of a pressure cooking apparatus according to an embodiment of the present utility model is shown in fig. 1, and a schematic structure of the pressure cooking apparatus shown in fig. 1 with a housing 100 removed is shown in fig. 2. The pressure cooking apparatus includes a housing 100, a liner 200, an inner pot assembly 300, and a pressure regulating device. Wherein: the housing 100 includes a case 10 and a door 11, and the door 11 may be connected to the case 10 in any manner movable with respect to the case 10. The interior of the box 10 is provided with a containing cavity 101, and the containing cavity 101 is used for containing other related components such as the liner 200. The accommodating chamber 101 has an opening formed at one side of the case 10, and the door 11 is correspondingly provided at the one side of the case 10 and is used to open or close the opening.

The liner 200 is provided in the accommodation chamber 101 and is movable to the outside of the accommodation chamber 101 with respect to the casing 10. In one embodiment, the pressure cooking apparatus further includes a drawer slidably provided in the case 10, and the liner 200 is installed in the drawer to move in/out of the accommodating chamber 101 according to the sliding of the drawer. In other embodiments, the movement of the liner 200 relative to the case 10 is not limited to the drawer pulling method, and may be implemented in a form. It will be appreciated that the movement of the liner 200 out of the receiving cavity 101 herein does not necessarily require that the liner 200 be entirely external, as long as it is capable of being moved outwardly to the desired position for removal of the liner 200 from the inner pot assembly 300.

The liner 200 may include a liner body 20 and a heating element 21 disposed in the liner body 20, and the inner pot assembly 300 may be installed in the liner body 20 and receive heat of the heating element 21 to cook food materials in the inner pot assembly 300.

The inner pot assembly 300 comprises a pot body 30 and a cover body 31, wherein: the pot body 30 is detachably arranged in the liner body 20, and the cover body 31 covers the opening of the pot body 30 and can seal the inner space of the pot body 30. During cooking, food and liquid are placed in the pot body 30, and the pot body 30 is placed in the liner body 20 and is in heat conduction contact with the heating element 21, so that heat of the heating element 21 can be conducted to the pot body 30 and the food in the pot body, and the purpose of curing the food is achieved.

The pressure regulating device is disposed on the cover 31 and the housing 100, and is used for regulating the air pressure in the pot 30. Compared with the pressure cooker in the traditional mode, when the pressure release valve is blocked or the pressure in the cooker is too high due to other conditions, the cooker cover can be directly fried to threaten the safety of a user; in the pressure cooking apparatus according to the present embodiment, the inner pot assembly 300 and the liner 200 are disposed in the outer casing 100, so that when the pressure adjustment failure of the inner pot assembly 300 causes the explosion, the splashing and other hazards, the outer casing 100 can limit the hazards to the accommodating cavity 101, thereby avoiding the direct exposure of the hazards to the user, and greatly improving the use safety.

Meanwhile, in the pressure cooking apparatus in the present embodiment, the shape of the casing 100 may be flexibly designed, for example, the casing 100 may be designed in a rectangular parallelepiped form for easy installation in an insert manner, as compared with an autoclave used on an existing open fire, and various forms of electric pressure cookers.

The inner container 200 and the inner pot assembly 300 are arranged in the outer shell 100, so that the use safety of the equipment can be improved and the requirement of embedded installation can be met, but how to regulate and control the air pressure in the inner pot assembly 300 is a problem to be solved. In this embodiment, the pressure regulating device is disposed on the cover 31 and the housing 100, so that the pressure of the inner pot assembly 300 can be regulated by the pressure regulating device disposed on the cover 31, and can be regulated by the pressure regulating device disposed on the housing 100.

In one embodiment, the cover 31 is provided with a first exhaust port 311, the case 10 is provided with a second exhaust port 1022, and the second exhaust port 1022 can communicate the accommodating chamber 101 to the outside. The pressure regulating device includes a first pressure regulating valve 400 disposed at the first exhaust port 311, and a second exhaust valve (not shown) disposed at the second exhaust port 1022.

Further, the top plate of the box 10 may be provided with an air storage chamber 102, and the top plate is provided with a third air outlet 1021 for communicating the air storage chamber 102 to the accommodating chamber 101, and the second air outlet 1022 is used for communicating the air storage chamber 102 to the outside. In this way, when the pressure in the inner pot assembly 300 needs to be adjusted by exhausting, the gas can be exhausted into the accommodating cavity 101 through the first exhaust port 311 and the first pressure regulating valve 400; when the space in the accommodating cavity 101 still cannot meet the pressure regulation requirement, the gas can be further discharged to the accommodating cavity 101 and the gas storage cavity 102 through the third gas outlet 1021; finally, when the two spaces still cannot meet the exhaust pressure regulation requirement, the gas can be exhausted out of the housing 100 through the second exhaust port 1022.

Referring to the reference numeral in FIG. 1, reference numeral A is a space in the pan body 30, and the volume thereof is denoted by V1; the reference number B is a space outside the inner container 200 in the accommodating cavity 101, and the volume of the space is the original volume in the accommodating cavity 101 minus the volume occupied by the inner container 200, and is marked as V2; the space in the gas storage chamber 102 is denoted by reference numeral C, and the volume thereof is denoted by V3. In order to better meet the purpose of pressure regulation and control in the pot body 30, the volumes of the three spaces meet the requirement of V1:V2:V3=1:2:3.5, wherein the space at the position B is set to be 2 times of the volume of the space at the position A, and the air pressure exchange time between the space at the position B and the space at the position C can be delayed, so that the purpose of accurately controlling the pressure is achieved.

In one embodiment, a third pressure regulating valve is further provided at the third exhaust port 1021. Therefore, the pressure regulating valves are respectively arranged at the three exhaust ports, the pressure regulating valves are equivalent to the adjustment of three-level pressure of the whole pressure cooking equipment, the pressure is not only released through the exhaust ports, and the pressure regulating process is more accurate and easy to control.

Referring to fig. 2, the first pressure regulating valve 400 includes a driving member 40, a connecting member 41, and a valve core 42, wherein: the valve core 42 is connected to the motion output end of the driving member 40 through the connecting member 41, and can move under the driving of the driving member 40 to change the ventilation area of the first exhaust port 311. The second pressure regulating valve and the third pressure regulating valve may have the same or substantially the same structure as the first pressure regulating valve 400, thereby facilitating the assembly process of the pressure cooking apparatus, and at the same time, the same pressure regulating valve is also beneficial to simplifying the control procedure when the electric control of the three pressure regulating valves is realized in a programming manner.

In one embodiment, the pressure cooking apparatus may further include a microprocessor and a sensor 500 provided to the cover 31, the sensor 500 being used to detect the air pressure and/or temperature in the pot 30. It is understood that the sensor 500 may include a plurality of sensors and be used to detect pressure and temperature, respectively. In order to facilitate accurate control of the cooking process, the pressure cooking apparatus may further comprise a detection device for detecting the humidity in the pot 30. In addition, the sensor 500 may detect only one of the air pressure and the temperature.

In order to achieve three levels of accurate pressure regulation, three thresholds for air pressure and/or temperature may be preset: the first preset value, the second preset value and the third preset value, wherein the second preset value is larger than the first preset value, and the third preset value is larger than the second preset value.

When the sensor 500 detects that the air pressure and/or temperature in the pan body 30 reaches the first preset value, the microprocessor controls the driving member 40 to act according to the detection result of the sensor 500, so as to drive the valve core 42 to move to change the ventilation area of the first air outlet 311, at this time, the air pressure exchange is performed between the area a and the area B in fig. 1 until the air pressure in the pan body 30 reaches the dynamic balance state.

When the sensor 500 detects that the air pressure and/or the temperature in the pan body 30 reach the second preset value, the microprocessor controls the first pressure regulating valve 400 and the third pressure regulating valve to act according to the detection result of the sensor 500, so as to change the ventilation areas of the first air outlet 311 and the third air outlet 1021 at the same time, at this time, the area a and the area B in fig. 1 exchange air pressure, and the area B exchanges air pressure with the area C until the air pressure in the pan body 30 reaches a dynamic balance state.

When the sensor 500 detects that the air pressure and/or the temperature in the pot body 30 reach the third preset value, the microprocessor controls the first pressure regulating valve 400, the third pressure regulating valve and the second pressure regulating valve to act according to the detection result of the sensor 500, so as to change the ventilation areas of the first air outlet 311, the third air outlet 1021 and the second air outlet 1022 at the same time, at this time, the area a in fig. 1 exchanges air pressure with the area B, the area B exchanges air pressure with the area C, and the area C exchanges air pressure with the outside of the pot body 10 until the air pressure in the pot body 30 reaches a dynamic balance state.

Different from the traditional pressure relief, the purpose of flexibly adjusting the pressure in the pot body 30 can be realized by adopting the pressure regulating valve, for example, the pressure regulating valve is used for adjusting the pressure in different pot bodies 30 in the two cooking processes, so that proper adjustment is made for cooking different kinds of food materials. Meanwhile, the three pressure regulating valves are sequentially started, so that the pressure in the pot body 30 can be regulated and controlled more accurately, the cooking effect is ensured, the probability of potential safety hazards caused by failure of pressure regulation is reduced, and the use safety of the pressure cooking equipment is improved.

Further, as shown in fig. 2, the cover 31 may be further provided with a non-opening valve 600. When a certain pressure exists in the pot body 30, which may cause danger, the opening stop valve 600 can prevent the cover body 31 from being opened, thereby further improving the use safety of the pressure cooking apparatus.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A pressure cooking apparatus, characterized in that the pressure cooking apparatus comprises:

the shell (100), the shell (100) comprises a box body (10) and a door body (11), a containing cavity (101) is arranged in the box body (10), an opening is formed in one side surface of the box body (10) in the containing cavity (101), and the door body (11) is connected to the opening of the box body (10) and used for opening or closing the opening;

the inner container (200) is arranged in the accommodating cavity (101) and can move out of the accommodating cavity (101) relative to the box body (10);

the inner pot assembly (300), the inner pot assembly (300) comprises a pot body (30) arranged in the inner container (200) and a cover body (31) covered at the opening of the pot body (30);

the pressure regulating device is arranged on the cover body (31) and the shell (100) and is used for regulating the air pressure in the pot body (30).

2. Pressure cooking device according to claim 1, characterized in that the cover (31) is provided with a first exhaust opening (311);

the box body (10) is provided with a second exhaust port (1022) which is communicated with the accommodating cavity (101) to the outside;

the pressure regulating device comprises a first pressure regulating valve (400) and a second pressure regulating valve which are respectively arranged at the first exhaust port (311) and the second exhaust port (1022).

3. Pressure cooking device according to claim 2, characterized in that a gas storage cavity (102) is arranged in the top plate of the box body (10), a third gas outlet (1021) for communicating the gas storage cavity (102) to the accommodating cavity (101) is arranged on the top plate, and the second gas outlet (1022) is used for communicating the gas storage cavity (102) to the outside.

4. A pressure cooking apparatus according to claim 3, wherein the following ratio is satisfied between the volume V1 in the pan (30), the volume V2 of the accommodating chamber (101) excluding the inner container (200), and the volume V3 of the gas storage chamber (102): v1:v2:v3=1:2:3.5.

5. A pressure cooking apparatus according to claim 3, further comprising a drawer slidably arranged in the casing (10), the liner (200) being mounted to the drawer.

6. A pressure cooking apparatus according to claim 3, wherein the pressure regulating means further comprises a third pressure regulating valve provided at the third exhaust port (1021).

7. The pressure cooking apparatus according to claim 6, wherein the first pressure regulating valve (400) includes a driving member (40), a connecting member (41) and a valve core (42), and the valve core (42) is connected to a movement output end of the driving member (40) through the connecting member (41) and is capable of moving under the driving of the driving member (40) to change a ventilation area of the first exhaust port (311).

8. The pressure cooking apparatus according to claim 7, wherein the second pressure regulating valve and the third pressure regulating valve are identical in structure to the first pressure regulating valve (400).

9. The pressure cooking apparatus according to claim 7, further comprising a microprocessor, and a sensor (500) disposed on the cover (31), wherein when the sensor (500) detects that the air pressure and/or the temperature in the pot (30) reaches a first preset value, the microprocessor controls the driving member (40) to act according to the detection result of the sensor (500) so as to drive the valve core (42) to change the ventilation area of the first exhaust port (311).

10. The pressure cooking apparatus according to claim 9, wherein when the sensor (500) detects that the air pressure and/or the temperature in the pan body (30) reach a second preset value, the microprocessor controls the first pressure regulating valve (400) and the third pressure regulating valve to act according to the detection result of the sensor (500) respectively, so that the air pressure exchange is performed between the interior of the pan body (30) and the accommodating cavity (101) through the first air outlet (311), and the air pressure exchange is performed between the accommodating cavity (101) and the air storage cavity (102) through the third air outlet, wherein the second preset value is greater than the first preset value; the method comprises the steps of,

when the sensor (500) detects that the air pressure and/or the temperature in the pot body (30) reach a third preset value, the microprocessor controls the first pressure regulating valve (400), the third pressure regulating valve and the second pressure regulating valve to act according to the detection result of the sensor (500), so that the air pressure exchange is carried out between the first air outlet (311), the third air outlet (1021) and the second air outlet (1022) and the outside sequentially through the inside of the pot body (30), and the third preset value is larger than the second preset value.