Conditioner

Abstract

To downsize a cooker.SOLUTION: A cooker includes: a container for storing materials to be heated; a heating part heating the container or the inside of the container; a safety valve 24 provided to a passage 18 for discharging steam generated in the container to the outside and releasing pressure when the pressure in the container exceeds a prescribed value; and a pressure-reducing valve 21 provided to the passage 18 and controlling the pressure in the container. The safety valve 24 and the pressure-reducing valve 21 are integrally structured. The safety valve 24 and the pressure-reducing valve 21 open / close the passage 18 by vertical movement of a valve body, and the pressure-reducing valve 21 is structured so that the passage 18 is opened by the downward movement of the valve body.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to cooking appliances. [Background technology]

[0002] Cooking appliances that heat and cook ingredients under pressures equal to or greater than atmospheric pressure have been proposed. For example, Patent Document 1 discloses a cooking appliance that includes a cooking pot for containing ingredients, a lid placed at the opening of the cooking pot, and an inner lid removably attached to the lid. The lid has an exhaust passage for discharging steam from inside the cooking pot, and the inner lid has an exhaust hole that constitutes part of the exhaust passage. The lid also includes a valve element placement section provided in a portion facing the exhaust hole, an elastic member that closes the end of the valve element placement section, and a valve element placed inside the lid of the valve element placement section. By moving the valve element vertically, the exhaust hole in the inner lid can be closed to increase the pressure inside the cooking pot, or the exhaust hole can be opened to return the pressure inside the cooking pot to atmospheric pressure. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-209417 Summary of the Invention [Problem to be solved by the invention]

[0004] Such cookers require not only a pressure reducing valve to control the pressure inside the cooking pot, but also a safety valve to release the pressure when the pressure inside the cooking pot exceeds a predetermined value to prevent the pressure inside the cooking pot from becoming too high, which can increase the number of parts and size. Technology is needed to reduce the size of cookers while ensuring their safety.

[0005] The present disclosure provides techniques for miniaturizing cooking appliances. [Means for solving the problem]

[0006] The cooking appliance of the present disclosure comprises a container for accommodating an object to be heated, a heating unit for heating the container or the inside of the container, a first valve provided in a passage for releasing steam generated inside the container to the outside and releasing the pressure when the pressure inside the container exceeds a predetermined value, and a second valve provided in the passage for controlling the pressure inside the container, the first valve and the second valve being integrally configured, and the first valve and the second valve opening and closing the passage by vertical movement of the valve body, and the second valve being configured so that the passage is opened by moving the valve body downward. [Effects of the Invention]

[0007] According to the present disclosure, the cooking appliance can be made smaller. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a cooking device according to a first embodiment; [Figure 2] FIG. 1 is a perspective view of a cooking device according to a first embodiment with a lid removed; [Figure 3] 1 is a cross-sectional view of a cooking device according to a first embodiment; [Figure 4A] FIG. 1 is a perspective view of the back surface of an inner lid of a cooking device according to a first embodiment; [Figure 4B] FIG. 1 is a perspective view of a surface of an inner lid of a cooking device according to a first embodiment; [Figure 5A] FIG. 1 is a diagram illustrating a schematic configuration of a valve unit of a cooking appliance according to a first embodiment; [Figure 5B] FIG. 1 is a diagram illustrating a schematic configuration of a valve unit of a cooking appliance according to a first embodiment; [Figure 5C] FIG. 1 is a diagram illustrating a schematic configuration of a valve unit of a cooking appliance according to a first embodiment; [Figure 6] FIG. 10 is a diagram illustrating a schematic configuration of a valve unit of a cooker according to a second embodiment. [Figure 7A] FIG. 10 is a diagram illustrating a schematic configuration of a valve unit of a cooker according to a third embodiment. [Figure 7B] FIG. 10 is a diagram illustrating a schematic configuration of a valve unit of a cooker according to a third embodiment. [Figure 7C] FIG. 10 is a diagram illustrating a schematic configuration of a valve unit of a cooker according to a third embodiment. [Figure 8] FIG. 1 is a diagram illustrating a schematic configuration of a valve unit of a cooking appliance. [Figure 9] FIG. 10 is a diagram showing an example of a user interface of the cooking appliance according to the first to third embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described in detail with reference to the drawings. However, unnecessary detailed description may be omitted. For example, detailed description of well-known matters or redundant description of substantially the same configuration may be omitted.

[0010] The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0011] (Embodiment 1) Hereinafter, the first embodiment will be described with reference to FIGS. 1 to 5C.

[0012] [1-1.Configuration] 1 to 3 show the configuration of a cooking appliance 10 according to embodiment 1. Fig. 1 is a perspective view of cooking appliance 10 according to embodiment 1. Fig. 2 is a perspective view of cooking appliance 10 according to embodiment 1 with the lid removed. Fig. 3 is a cross-sectional view of cooking appliance 10 according to embodiment 1.

[0013] The cooker 10 comprises a main body 11, a lid 12, a handle 13, a container 14, and a stirring blade 15.

[0014] The container 14 is detachably housed inside the main body 11 and houses an object to be heated. A stirring blade 15 for stirring the object to be heated is provided inside the container 14. The stirring blade 15 is rotated by a motor. The motor is controlled by a control device. The container 14 is heated by a heating unit. The heating unit is controlled by the control device.

[0015] The lid 12 opens and closes the opening of the main body 11 in which the container 14 is housed. The cooker 10 of this embodiment is configured to be able to increase the pressure inside the container 14 to atmospheric pressure or higher during heating. To this end, an inner lid 17 is provided inside the lid 12 to airtightly close the opening of the container 14 when the lid 12 is closed. A seal 93 seals the gap between the lid 12 and the inner lid 17. The seal 93 may be a packing made of an elastic material. The seal 93 may be provided on the lid 12, the inner lid 17, or both the lid 12 and the inner lid 17. The lid 12 is provided with an exhaust hole 16 for releasing steam generated inside the container 14 to the outside. A valve unit 20 for controlling the pressure inside the container 14 is provided in a passage 18 extending from the inner lid exhaust hole 19 to the exhaust hole 16, which is provided to release steam generated inside the container 14 to the outside.

[0016] FIG. 4A is a perspective view of the back surface of inner lid 17. FIG. 4B is a perspective view of the front surface of inner lid 17. To heat the object by increasing the pressure inside container 14 to a pressure equal to or greater than atmospheric pressure, a pressure reducing valve, which functions as a second valve for controlling the pressure inside container 14, and a safety valve, which functions as a first valve for releasing the pressure when the pressure inside container 14 exceeds a predetermined value, are provided along passage 18. These valves must be housed within area 94 sealed by seal portion 93. If multiple pressure reducing valves or safety valves are installed at different positions on inner lid 17, multiple mounting holes must be drilled in inner lid 17 at intervals required for processing, so area 94 must be large. In this case, stress is applied to area 94 of inner lid 17 when the pressure inside container 14 is increased to a pressure equal to or greater than atmospheric pressure, which may cause the plane of area 94 to deform out of plane, reducing the airtightness between inner lid 17 and seal portion 93. Furthermore, the larger size of seal portion 93 increases material costs.

[0017] To solve this problem, in the cooker 10 of this embodiment, a valve unit 20 integrating a pressure reducing valve and a safety valve is provided in an area 94 of the inner lid 17. This allows the inner lid 17 to be formed into a tapered shape so that the area 94 is small, thereby preventing the inner lid 17 from deforming out of its plane when pressurized, improving pressure resistance and airtightness. In addition, the material cost of the seal portion 93 can be reduced.

[0018] 5A, 5B, and 5C schematically illustrate the configuration of the valve unit 20 of the cooker 10 of the first embodiment. The valve unit 20 is an integral configuration of a pressure reducing valve 21, which is a second valve, and a safety valve 24, which is a first valve. The valve unit 20 is provided in the middle of a passage 18 extending from an inner lid exhaust hole 19 of the inner lid 17 to an exhaust hole 16 of the lid 12, and the passage 18 is provided to release steam generated inside the container 14 to the outside. The valve unit 20 is fixed to the inner lid 17 by a nozzle fixing spring 88 and a fixing nut 89. This prevents the valve unit 20 from coming off the inner lid 17 or steam from leaking through gaps. FIG. 5A illustrates a state in which the pressure reducing valve 21 and the safety valve 24 are closed. FIG. 5B illustrates a state in which the pressure reducing valve 21 is open. FIG. 5C illustrates a state in which the safety valve 24 is open.

[0019] The pressure reducing valve 21 includes a valve element 22 that is movable in the vertical direction, and a pressure reducing valve spring 23 that urges the valve element 22 upward. The pressure reducing valve spring 23 has an urging force that is sufficient to support the weight of the valve element 22. The safety valve 24 includes a valve element 25 that is movable in the vertical direction, and a safety valve spring 26 that urges the valve element 25 downward.

[0020] In the closed state (FIG. 5A) where the valve element 22 of the pressure reducing valve 21 is moved to the uppermost position and the valve element 25 of the safety valve 24 is moved to the lowermost position, the pressure reducing valve 21 closes the flow path 81 between the valve element 22 of the pressure reducing valve 21 and the valve element 25 of the safety valve 24, and the safety valve 24 closes the flow path 82 between the valve element 25 of the safety valve 24 and the base 97. This causes the pressure inside the container 14 to rise above atmospheric pressure.

[0021] In the pressure-reducing valve open state (FIG. 5B) in which the valve element 22 of the pressure-reducing valve 21 is moved to the lowest position, the pressure-reducing valve 21 opens the flow path 81. This allows steam from inside the container 14 to flow into the cover 90 through holes 91 on the side and holes 92 on the bottom of the cover 90, which covers the inner lid exhaust hole 19. As shown by the arrows in FIG. 5B, steam passes through the inner lid exhaust hole 19, flow path 83 constituting part of the passage 18, flow path 81, and opening 96 in the outer shell 95, and is then exhausted to the outside through the exhaust hole 16, thereby reducing the pressure inside the container 14. During cooking, the cooker 10 closes the pressure-reducing valve 21 to increase the pressure inside the container 14, or opens the pressure-reducing valve 21 to reduce the pressure inside the container 14. This applies a sudden pressure change to the food to be heated during cooking, allowing the food to move inside the container 14, reducing uneven heating and enabling efficient heating. It also speeds up depressurization after cooking is completed. When cooking is completed, cooker 10 gradually pushes down the upper part of valve element 22, which protrudes from the upper end of valve unit 20, to open passage 18. This releases steam from inside container 14 to the outside through exhaust hole 16, and the pressure inside container 14 is returned to atmospheric pressure, allowing lid 12 to be opened. Valve element 22 may be moved electrically by a driving means such as a stepping motor, by a mechanical driving mechanism, or manually. The driving means or driving mechanism functions as a pressure control unit that controls the pressure inside container 14 by controlling the opening and closing of pressure reducing valve 21.

[0022] When the pressure inside the container 14 exceeds the biasing force of the safety valve spring 26, the valve element 25 of the safety valve 24 is pushed upward together with the valve element 22 of the pressure-reducing valve 21, creating a gap between the valve element 25 and the base 97. That is, when the valve element 25 is moved to the uppermost position ( FIG. 5C ), the safety valve 24 opens the flow path 82. As a result, steam inside the container 14 flows into the cover 90 through the side hole 91 and the bottom hole 92 of the cover 90, which covers the inner lid exhaust hole 19. As shown by the arrows in FIG. 5C , steam passes through the inner lid exhaust hole 19, the flow path 83 and the flow path 82 that constitute part of the passage 18, and the opening 96 of the outer shell 95, and is exhausted to the outside through the exhaust hole 16, thereby reducing the pressure inside the container 14. The biasing force of the safety valve spring 26 is adjusted so that when the pressure inside the container 14 exceeds the safety valve opening pressure value, the valve element 25 moves upward and the safety valve 24 opens. This prevents the pressure inside the container 14 from exceeding the safety valve opening pressure value even if a malfunction occurs in the pressure reducing valve 21. If no malfunction occurs in the pressure reducing valve 21, the safety valve 24 remains closed and does not open.

[0023] The outer shell 95 of the valve unit 20 is made of a high-strength material to support the biasing force of the safety valve spring 26. To ensure ease of cleaning, the opening 96 provided in the outer shell 95 is preferably large in area, as long as the strength of the outer shell 95 is ensured. The outer shell 95 is removably fixed to the top surface of the valve unit 20 by female and male threads, for example. The outer shell 95 may be configured so that it can be removably fixed to the top surface of the valve unit 20 by rotating the outer shell 95. The outer shell 95 may be configured so that it can be removably fixed to the top surface of the valve unit 20 by hooking a claw onto the top surface of the valve unit 20. This allows the outer shell 95 to be removed to clean the inside of the valve unit 20, making it less likely to clog.

[0024] The pressure reducing valve 21, the safety valve 24, and the base 97 are arranged on the same axis. The pressure reducing valve 21, the safety valve 24, and the base 97 are housed in the same housing and are positioned by the outer shell 95 of the valve unit 20 so that they are arranged on the same axis. This makes it possible to ensure a radial seal margin between the valve element 22 of the pressure reducing valve 21 and the valve element 25 of the safety valve 24, and a seal margin between the valve element 25 of the safety valve 24 and the base 97, while also ensuring a margin for the seal margin, thereby making it possible to reduce the size of the valve unit 20. In order to quickly exhaust steam inside the container 14 when the pressure reducing valve 21 is open, the opening area (opening area: Q in FIG. 5B) formed by the pressure reducing valve 21 and the safety valve 24 when the pressure reducing valve 21 is opened should be equal to or larger than the opening area (flow path area: S in FIG. 5B) of the inner lid exhaust hole 19 (for example, 28 mm 2 It is desirable that the opening area Q and the flow path area S are equal to or greater than the opening area Q. The opening area Q and the flow path area S may be determined to match the opening area when cooking ingredients or food without pressurizing the inside of container 14 with pressure reducing valve 21 open in cooker 10. In cooker 10 of the present embodiment, pressure reducing valve 21 and safety valve 24 are concentrically arranged on the same axis as described above, and are configured to operate by the valve body moving up and down, thereby ensuring an opening area Q equal to or greater than flow path area S with the minimum installation area, and therefore preventing steam inside container 14 from being pressurized without being quickly discharged even when the pressure reducing valve is open.

[0025] The pressure reducing valve 21 and the safety valve 24 are provided in the same passage 18 for discharging steam from inside the container 14 to the outside. Furthermore, the pressure reducing valve 21 and the safety valve 24 share the inner lid exhaust hole 19 and flow path 83 for discharging steam from inside the container 14. This makes it possible to increase the area of the inner lid exhaust hole 19 while suppressing the pressure on each component, so that steam inside the container 14 can be quickly discharged to the outside when the pressure is reduced. Furthermore, since the number of holes provided in the inner lid 17 can be reduced, airtightness can be improved and manufacturing costs can be reduced.

[0026] It is preferable to reduce the thickness and weight of parts common to the pressure reducing valve 21 and the safety valve 24, as long as the pressure resistance and the opening area required for exhaust are ensured. This allows the size of the valve unit 20 to be reduced. Furthermore, since the pressure reducing valve 21 can be made smaller, the biasing force of the safety valve spring 26 arranged outside the pressure reducing valve 21 can be reduced. Therefore, the wire diameter of the safety valve spring 26 can be reduced, which reduces variation in the biasing force of the safety valve spring 26 and allows stable operation. Furthermore, since the number of safety valves 24 can be reduced, the number of parts and manufacturing costs can be reduced and assembly can be improved.

[0027] Both the pressure reducing valve 21 and the safety valve 24 are opened and closed by vertical movement of the valve element. Therefore, arranging them side by side increases the horizontal size of the valve unit 20. In the valve unit 20 of this embodiment, the pressure reducing valve 21 and the safety valve 24 are not arranged side by side, but are integrally configured such that the pressure reducing valve 21 is enclosed within the safety valve 24. This reduces the size, number of parts, and manufacturing cost of the valve unit 20. Furthermore, since the passage 18 can be shared, the size, number of parts, and manufacturing cost of the valve unit 20 can be reduced, and user maintenance convenience can be improved. Furthermore, restrictions on component layout can be reduced. Furthermore, the convex shape of the inner lid 17 can be reduced, preventing the heated object from getting caught or getting caught during cleaning. The pressure reducing valve 21 and the safety valve 24 may be arranged adjacent to each other. In this case, the passage 18 can also be shared, reducing the size, number of parts, and manufacturing cost of the valve unit 20, and improving user maintenance convenience.

[0028] In the valve unit 20 of this embodiment, the safety valve 24 is provided outside the pressure reducing valve 21. This allows a spring with a larger diameter than the pressure reducing valve spring 23 to be used as the safety valve spring 26 of the safety valve 24, which opens at a higher pressure than the pressure reducing valve 21. This reduces the size and cost of the valve unit 20 and improves the safety of the cooker 10. Furthermore, since the opening area of the pressure reducing valve 21 can be reduced, the operating force of the pressure reducing valve 21 during pressure reduction after pressure cooking can be reduced, and the torque of a motor or the like for moving the valve element 22 can be reduced, thereby making it possible to miniaturize the valve unit 20. The opening area of the valve unit 20 may be larger than the opening area of the pressure reducing valve 21. This improves cleanability.

[0029] [1-2. Operation] The operation and function of cooker 10 configured as described above will be explained below. A user grasps handle 13 to open lid 12 and places an object to be heated, such as food ingredients, in container 14. The user then closes lid 12 and sets heating conditions, such as temperature, heating time, and whether or not to stir, via the user interface of cooker 10, and issues a command to start heating. A control device for cooker 10 controls the heating unit for heating container 14, the motor for rotating stirring blade 15, and other components according to the set heating conditions.

[0030] When the pressure inside container 14 is atmospheric pressure, pressure reducing valve 21 is open. When the control device wants to pressurize the inside of container 14 during heating, it closes pressure reducing valve 21. As a result, the pressure inside container 14 increases due to steam generated inside container 14. When the control device wants to depressurize the inside of container 14 during heating, it opens pressure reducing valve 21. As a result, some of the steam is released to the outside from exhaust hole 16 via passage 18, and the pressure inside container 14 decreases to near atmospheric pressure (1.05 atmospheres or less).

[0031] If the pressure inside the container 14 exceeds the safety valve opening pressure value due to a malfunction of the pressure reducing valve 21 or the like, the safety valve 24 opens and the steam is released to the outside from the exhaust hole 16 via the passage 18. This prevents the pressure inside the container 14 from exceeding the safety valve opening pressure value.

[0032] When heating is completed, the control device gradually opens pressure reducing valve 21 by gradually depressing valve element 22 of pressure reducing valve 21, gradually releasing steam inside container 14 to the outside and reducing the pressure inside container 14. When the pressure inside container 14 returns to atmospheric pressure, the user grasps handle 13 to open lid 12 and removes the heated object from container 14.

[0033] [1-3. Effects, etc.] As described above, in this embodiment, cooker 10 comprises container 14 for accommodating an object to be heated, a heating unit for heating container 14 or the interior of container 14, safety valve 24 provided in passage 18 for releasing steam generated inside container 14 to the outside and for releasing the pressure inside container 14 when the pressure exceeds a predetermined value, and pressure reducing valve 21 provided in passage 18 for controlling the pressure inside container 14, with safety valve 24 and pressure reducing valve 21 being integrally configured. This makes it possible to reduce the size, number of parts, and manufacturing costs of cooker 10.

[0034] Furthermore, in the present embodiment, cooker 10 is provided with a pressure control unit that controls the pressure inside container 14 by controlling the opening and closing of pressure reducing valve 21. This allows the pressure inside container 14 to be appropriately controlled.

[0035] Furthermore, in the present embodiment, safety valve 24 is provided outside pressure reducing valve 21. This makes it possible to reduce the size and cost of cooker 10, and also to improve the safety of cooker 10.

[0036] In the present embodiment, the safety valve 24 and the pressure reducing valve 21 are opened and closed by vertical movement of the valve body, which makes it possible to reduce the size of the cooker 10, the number of parts, and the manufacturing cost.

[0037] In this embodiment, the first valve is a safety valve 24 that releases pressure when the pressure inside the container 14 exceeds a safety valve opening pressure value, and the second valve is a pressure reducing valve 21 that reduces the pressure inside the container 14 when open and increases the pressure inside the container 14 when closed. The second valve may be the safety valve 24 or a pressure regulating valve that releases pressure when the pressure inside the container 14 exceeds a pressure regulating valve opening pressure value that is lower than the safety valve opening pressure value. This allows the pressure inside the container 14 to be appropriately controlled.

[0038] Furthermore, in this embodiment, pressure reducing valve 21 is configured such that valve element 22 is biased to close passage 18, and passage 18 is opened by mechanically or manually moving valve element 22 of pressure reducing valve 21, and safety valve 24 is configured such that valve element 25 is biased to close passage 18, and when the pressure inside container 14 exceeds the biasing force, valve element 25 of safety valve 24 moves, thereby releasing the pressure inside container 14. This makes it possible to reduce the size and cost of cooker 10 and improve the safety of cooker 10.

[0039] In the present embodiment, pressure reducing valve 21 is configured so that passage 18 is opened when valve element 22 is moved downward, and safety valve 24 is configured so that passage 18 is opened when valve element 25 is moved upward. This makes it possible to reduce the size and cost of cooker 10 and improve the safety of cooker 10.

[0040] (Embodiment 2) Hereinafter, the second embodiment will be described with reference to FIG.

[0041] [2-1.Configuration] Fig. 6 shows a schematic configuration of valve unit 20 of cooker 10 of embodiment 2. Cooker 10 of embodiment 2 includes pressure regulating valve 27 as a second valve instead of pressure reducing valve 21 of cooker 10 of embodiment 1. Other configurations and operations are the same as those of embodiment 1. Fig. 6 shows a state in which pressure regulating valve 27 and safety valve 24 are closed.

[0042] The pressure regulating valve 27 includes a valve element 28 that is movable in the vertical direction and a pressure regulating valve spring 29 that urges the valve element 28 downward. The pressure regulating valve 27 opens when the pressure inside the container 14 exceeds a pressure regulating valve opening pressure value and closes when the pressure inside the container 14 falls below the pressure regulating valve opening pressure value. This maintains the pressure inside the container 14 constant. The pressure regulating valve 27 may be configured so that the pressure regulating valve opening pressure value is adjustable. For example, the spring constants of the pressure regulating valve spring 29 and the safety valve spring 26 may be adjusted by making the outer shell 95 movable. The urging forces of the pressure regulating valve spring 29 and the safety valve spring 26 may be adjusted electrically by a driving means such as a motor, by a mechanical driving mechanism, or manually. The rest of the configuration and operation of the pressure regulating valve 27 are the same as those of the pressure reducing valve 21 of the first embodiment.

[0043] According to the cooker 10 of this embodiment, the size, number of parts, and manufacturing cost of the valve unit 20 can be reduced. Furthermore, since the passage 18 can be shared, the size, number of parts, and manufacturing cost of the valve unit 20 can be reduced, and the convenience of maintenance for the user can be improved. Furthermore, since the safety valve spring 26 of the safety valve 24, which opens at a higher pressure than the pressure regulating valve 27, can be a spring with a larger diameter than the pressure regulating valve spring 29, the size and cost of the valve unit 20 can be reduced, and the safety of the cooker 10 can be improved. Furthermore, since the pressure inside the container 14 can be maintained at the pressure regulating valve opening pressure value, the heated food, such as ingredients, can be cooked more appropriately. Furthermore, restrictions on component layout can be reduced. Furthermore, since the convex shape can be reduced, the heated food can be prevented from getting caught or caught during cleaning. The pressure regulating valve 27 and the safety valve 24 may be installed adjacent to each other. The pressure regulating valve 27 and the safety valve 24 may be interchanged. In this case, too, the passage 18 can be shared, which reduces the size, number of parts, and manufacturing costs of the valve unit 20, and improves convenience for the user when cleaning.

[0044] [2-2. Operation] The operation and function of cooking appliance 10 configured as above are the same as those in the first embodiment.

[0045] [2-3. Effects, etc.] As described above, in this embodiment, cooker 10 comprises container 14 for accommodating an object to be heated, a heating unit for heating container 14 or the interior of container 14, safety valve 24 provided in passage 18 for releasing steam generated inside container 14 to the outside and for releasing the pressure inside container 14 when the pressure exceeds a predetermined value, and pressure regulating valve 27 provided in passage 18 for controlling the pressure inside container 14, with safety valve 24 and pressure regulating valve 27 being integrally configured. This makes it possible to reduce the size, number of parts, and manufacturing costs of cooker 10.

[0046] Furthermore, in the present embodiment, cooker 10 is provided with a pressure control unit that controls the pressure inside container 14 by controlling the opening and closing of pressure regulating valve 27. This allows the pressure inside container 14 to be appropriately adjusted.

[0047] Furthermore, in the present embodiment, safety valve 24 is provided outside pressure regulating valve 27. This makes it possible to reduce the size and cost of cooker 10, and also to improve the safety of cooker 10.

[0048] In the present embodiment, safety valve 24 and pressure regulating valve 27 are opened and closed by vertical movement of the valve body, which makes it possible to reduce the size of cooker 10, the number of parts, and manufacturing costs.

[0049] In this embodiment, the first valve is a safety valve 24 that releases pressure when the pressure inside container 14 exceeds a safety valve opening pressure value, and the second valve is a pressure regulating valve 27 that maintains the pressure inside container 14 at a pressure regulating valve opening pressure value. The first valve may be pressure regulating valve 27. The second valve may be a pressure reducing valve 21 or a safety valve 24. This allows the pressure inside container 14 to be appropriately adjusted.

[0050] Furthermore, in this embodiment, pressure regulating valve 27 is configured so that valve element 28 is biased to close passage 18, and passage 18 is opened by mechanically or manually moving valve element 28 of pressure regulating valve 27, and safety valve 24 is configured so that valve element 25 is biased to close passage 18, and when the pressure inside container 14 exceeds the biasing force, valve element 25 of safety valve 24 moves, thereby releasing the pressure inside container 14. This makes it possible to reduce the size and cost of cooker 10 and improve the safety of cooker 10.

[0051] In the present embodiment, pressure regulating valve 27 is configured so that passage 18 is opened when valve element 28 is moved upward, and safety valve 24 is configured so that passage 18 is opened when valve element 25 is moved upward. This makes it possible to reduce the size and cost of cooker 10 and improve the safety of cooker 10.

[0052] (Embodiment 3) Hereinafter, the third embodiment will be described with reference to FIGS. 7A to 9. FIG.

[0053] [3-1.Configuration] Cooking appliance 10 of embodiment 3 includes valve unit 30 instead of valve unit 20 of cooking appliance 10 of embodiment 1. The other configurations and operations are the same as those of embodiment 1.

[0054] Figures 7A, 7B, and 7C schematically show the configuration of valve unit 30 of cooker 10 of embodiment 3. Valve unit 30 is an integral configuration of pressure reducing valve 31, which is a second valve, and safety valve 34, which is a first valve. Figure 7A shows pressure reducing valve 31 in an open state. Figure 7B shows pressure reducing valve 31 in a closed state. Figure 7C shows safety valve 34 in an open state. Valve unit 30 is provided in passage 18 from inner lid exhaust hole 19 of inner lid 17 to exhaust hole 16 of lid 12, and is provided to release steam generated inside container 14 to the outside.

[0055] The pressure reducing valve 31 comprises a valve element 32 that is movable in the vertical direction, and a pressure reducing valve spring 33 that urges the valve element 32 upward. The pressure reducing valve spring 33 has an urging force that is sufficient to support the weight of the valve element 32 and the pressure acting on the valve element 32. The safety valve 34 comprises a valve element 35 that is movable in the vertical direction, and a safety valve spring 36 that urges the valve element 35 downward.

[0056] In the open state (FIG. 7A) where valve element 32 of pressure reducing valve 31 is moved to the uppermost position, pressure reducing valve 31 opens flow path 84 below valve element 32 of pressure reducing valve 31. As a result, steam inside container 14 passes through flow path 84, which constitutes part of passage 18, and is exhausted to the outside from exhaust hole 16, as shown by the arrow in FIG. 7A, so that the pressure inside container 14 is reduced.

[0057] In the closed state (FIG. 7B) where valve element 32 of pressure reducing valve 31 is moved to the lowest position and valve element 35 of safety valve 34 is moved to the lowest position, pressure reducing valve 31 closes flow path 84. This causes the pressure inside container 14 to rise above atmospheric pressure. Contrary to pressure reducing valve 21 of embodiment 1, in the initial state where pressure reducing valve 31 is not under load, valve element 32 is biased by pressure reducing valve spring 33 to the uppermost position, so pressure reducing valve 31 is in the open state. During cooking, cooker 10 closes pressure reducing valve 31 to increase the pressure inside container 14, or opens pressure reducing valve 31 to reduce the pressure inside container 14. This applies a sudden pressure change to the food to be heated during cooking, allowing the food to move inside container 14, reducing uneven heating and enabling efficient heating. It also speeds up depressurization after cooking is completed. When the pressure inside the container 14 needs to be increased during cooking, the cooker 10 pushes down the valve element 32 to move it to its lowest position, closing the pressure-reducing valve 31. The valve element 32 may be moved electrically by a driving means such as a stepping motor, by a mechanical driving mechanism, or manually. The valve element 32 may be indirectly pushed down by a spring 99 disposed between the outer shell 95 and the valve element 32 when the outer shell 95 is pushed down. The driving means or driving mechanism functions as a pressure control unit that controls the pressure inside the container 14 by controlling the opening and closing of the pressure-reducing valve 31. When cooking is completed, the cooker 10 gradually reduces the force pushing down the valve element 32, gradually moving the valve element 32 upward and opening the passage 98. This releases steam from the container 14 to the outside through the exhaust hole 16, returning the interior of the container 14 to atmospheric pressure, allowing the lid 12 to be opened.

[0058] In the open state (FIG. 7C) where the valve element 35 of the safety valve 34 is moved to the uppermost position, the safety valve 34 opens the flow path 85 between the valve element 35 of the safety valve 34 and the valve element 32 of the pressure-reducing valve 31. As a result, steam inside the container 14 passes through the flow path 85, which constitutes part of the passage 18, and is exhausted to the outside through the exhaust hole 16, as shown by the arrow in FIG. 7C, thereby reducing the pressure inside the container 14. The biasing force of the safety valve spring 36 is adjusted so that the valve element 35 moves upward and the safety valve 34 opens when the pressure inside the container 14 exceeds the safety valve opening pressure value. This prevents the pressure inside the container 14 from exceeding the safety valve opening pressure value even if a malfunction occurs in the pressure-reducing valve 31. If no malfunction occurs in the pressure-reducing valve 31, the safety valve 34 remains closed and does not open.

[0059] The pressure reducing valve 31 may be configured so that the spring constants of the pressure reducing valve spring 33 and the safety valve spring 36 can be adjusted by pushing down the outer shell 95. The operating pressure and the safety valve opening pressure value of the pressure reducing valve 31 are determined by the amount of movement of the outer shell 95 and the spring forces of the pressure reducing valve spring 33 and the safety valve spring 36. In this case, the pressure reducing valve 31 can function not only as a pressure reducing valve but also as a pressure regulating valve. The safety valve 34 may also be used as a pressure regulating valve. A pressure regulating valve may be provided instead of the pressure reducing valve 31.

[0060] Both the pressure reducing valve 31 and the safety valve 34 are opened and closed by vertical movement of the valve element, so arranging them side by side increases the horizontal size of the valve unit 30. In the valve unit 30 of this embodiment, the pressure reducing valve 31 and the safety valve 34 are not arranged side by side, but are instead integrally configured with the safety valve 34 enclosed within the pressure reducing valve 31. This reduces the size, number of parts, and manufacturing cost of the valve unit 30. Furthermore, the commonality of the passage 18 reduces the size, number of parts, and manufacturing cost of the valve unit 30, while also improving user convenience for maintenance. Furthermore, it also reduces restrictions on component layout. Furthermore, it reduces the convex shape of the inner lid 17, thereby preventing the heated object from getting caught or getting caught during cleaning. The pressure reducing valve 31 and the safety valve 34 may be arranged adjacent to each other. The pressure reducing valve 31 and the safety valve 24 may be interchanged. In this case, too, the passage 18 can be shared, which reduces the size, number of parts, and manufacturing costs of the valve unit 30, and improves convenience for the user when cleaning.

[0061] In the valve unit 30 of this embodiment, the safety valve 34 is provided inside the pressure reducing valve 31. The pressure reducing valve 31 is configured to be initially in an open state. This prevents the passage 18 from being blocked and the pressure inside the container 14 from increasing, even if a malfunction occurs in the drive means or drive mechanism for driving the valve element 32 of the pressure reducing valve 31, thereby improving safety.

[0062] 8 schematically shows another example of the configuration of the valve unit 30 of the cooker 10. The valve unit 30 is an integral configuration of a pressure reducing valve 31, which is a second valve, and a safety valve 34, which is a first valve. The valve unit 30 is provided midway along the passage 18 that runs from the inner lid exhaust hole 19 of the inner lid 17 to the exhaust hole 16 of the lid 12, and is provided to release steam generated inside the container 14 to the outside.

[0063] The pressure reducing valve 31 comprises a valve element 32 that is movable in the vertical direction, and a pressure reducing valve spring 33 that urges the valve element 32 upward. The pressure reducing valve spring 33 is provided between the valve element 32 of the pressure reducing valve 31 and the valve element 35 of the safety valve 34, and has an urging force that is greater than or equal to the weight of the valve element 32 and the pressure acting on the valve element 32. This allows the pressure reducing valve 31 to be configured to be in an open state in its initial state, thereby improving safety. The safety valve 34 comprises a valve element 35 that is movable in the vertical direction, and a safety valve spring 36 that urges the valve element 35 upward. The safety valve spring 36 has an urging force that is greater than or equal to the weight of the valve element 35 and the pressure acting on the valve element 35. This allows the safety valve 34 to be configured to be in an open state in its initial state, thereby improving safety. In the valve unit 30 shown in Figures 7A, 7B, and 7C, the safety valve 34 is provided inside the pressure reducing valve 31, but in the valve unit 30 shown in this figure, the safety valve 34 is provided outside the pressure reducing valve 31.

[0064] In the initial state, the pressure reducing valve spring 33 opens a flow path 85 between the valve element 32 of the pressure reducing valve 31 and the valve element 35 of the safety valve 34, or the safety valve spring 36 opens a flow path 84 below the valve element 35 of the safety valve 34. The safety valve 34 may be configured to open the flow path 84 in the initial state by the valve element 35 being urged downward by the safety valve spring 36, or may be configured to close the flow path 84 in the initial state by adjusting the spring pressure of the central safety valve spring 86 provided between the outer shell 95 and the valve element 32 of the pressure reducing valve 31. When the outer shell 95 is pressed down, the valve element 32 of the pressure reducing valve 31 is moved to the lowest position by a central safety valve spring 86 provided between the outer shell 95 and the valve element 32 of the pressure reducing valve 31, and the valve element 35 of the safety valve 34 is moved to the lowest position by a spring 99 provided between the outer shell 95 and the valve element 35 of the safety valve 34 and the valve element 32 of the pressure reducing valve 31. In this closed state, the pressure reducing valve 31 and the safety valve 34 close the flow path 85 and the flow path 84. When the force pressing down the outer shell 95 is weakened, the valve element 32 of the pressure reducing valve 31 moves upward, creating a gap between it and the valve element 35 of the safety valve 34, and opening the flow path 85. When the pressure inside the container 14 exceeds the safety valve opening pressure value, the valve element 35 of the safety valve 34 moves upward, overcoming the downward force acting on the valve element 35 of the safety valve 34 and the valve element 32 of the pressure reducing valve 31 (the biasing force of the central safety valve spring 86 and the force pushing down on the outer shell 95). In this safety valve operating state (FIG. 8), the safety valve 34 opens the flow path 84. As a result, steam inside the container 14 passes through the flow path 84, which constitutes part of the passage 18, and is exhausted to the outside from the exhaust hole 16, as shown by the arrow in FIG. 8, so that the pressure inside the container 14 is reduced.

[0065] This configuration also reduces the size, number of parts, and manufacturing costs of the valve unit 30. Furthermore, since the passage 18 can be shared, the size, number of parts, and manufacturing costs of the valve unit 30 can be reduced, and the convenience for users when cleaning can be improved. Also, restrictions on component layout can be reduced. Furthermore, since the convex shape of the inner lid 17 can be reduced, it is possible to prevent the heated object from getting caught or the inner lid from getting caught during cleaning.

[0066] [3-2. Operation] The operation and function of cooking appliance 10 configured as above are the same as those in the first embodiment.

[0067] [3-3. Effects, etc.] As described above, in this embodiment, cooker 10 comprises container 14 for accommodating an object to be heated, a heating unit for heating container 14 or the interior of container 14, safety valve 34 provided in passage 18 for releasing steam generated inside container 14 to the outside and for releasing pressure when the pressure inside container 14 exceeds a safety valve opening pressure value, and pressure reducing valve 31 provided in passage 18 for controlling the pressure inside container 14, with safety valve 34 and pressure reducing valve 31 being integrally configured. This makes it possible to reduce the size, number of parts, and manufacturing costs of cooker 10.

[0068] Furthermore, in the present embodiment, cooker 10 is provided with a pressure control unit that controls the pressure inside container 14 by controlling the opening and closing of pressure reducing valve 31. This allows the pressure inside container 14 to be appropriately controlled.

[0069] Furthermore, in the present embodiment, safety valve 34 is provided outside pressure reducing valve 31. This makes it possible to reduce the size and cost of cooker 10, and also to improve the safety of cooker 10.

[0070] In the present embodiment, the safety valve 34 and the pressure reducing valve 31 are opened and closed by vertical movement of the valve body, which makes it possible to reduce the size of the cooker 10, the number of parts, and the manufacturing cost.

[0071] In this embodiment, the first valve is a safety valve 34 that releases pressure when the pressure inside the container 14 exceeds a safety valve opening pressure value, and the second valve is a pressure reducing valve 31 that reduces the pressure inside the container 14 when open and increases the pressure inside the container 14 when closed. The first valve may be a pressure regulating valve that releases pressure when the pressure inside the container 14 exceeds a pressure regulating valve opening pressure value that is lower than the safety valve opening pressure value. The second valve may be a safety valve or a pressure regulating valve. This allows the pressure inside the container 14 to be appropriately controlled.

[0072] Furthermore, in this embodiment, pressure reducing valve 31 is configured such that valve element 32 is biased to close passage 18, and passage 18 is opened by mechanically or manually moving valve element 32 of pressure reducing valve 31, and safety valve 34 is configured such that valve element 35 is biased to close passage 18, and when the pressure inside container 14 exceeds the biasing force, valve element 35 of safety valve 34 moves, thereby releasing the pressure inside container 14. This makes it possible to reduce the size and cost of cooker 10 and improve the safety of cooker 10.

[0073] In this embodiment, pressure reducing valve 31 is configured so that passage 18 is opened when valve element 32 is moved upward, and safety valve 34 is configured so that passage 18 is opened when valve element 35 is moved upward. This makes it possible to reduce the size and cost of cooker 10 and improve the safety of cooker 10.

[0074] In the present embodiment, the safety valve 34 is provided inside the pressure reducing valve 31. This makes it possible to reduce the size and cost of the cooker 10, and also to improve the safety of the cooker 10.

[0075] In the present embodiment, the safety valve 34 and the pressure reducing valve 31 are opened and closed by vertical movement of the valve body, which makes it possible to reduce the size of the cooker 10, the number of parts, and the manufacturing cost.

[0076] In this embodiment, the first valve is a safety valve 34 that releases pressure when the pressure inside the container 14 exceeds a safety valve opening pressure value, and the second valve is a pressure reducing valve 31 that reduces the pressure inside the container 14 when open and increases the pressure inside the container 14 when closed. The first valve may be a pressure regulating valve that releases pressure when the pressure inside the container 14 exceeds a pressure regulating valve opening pressure value that is lower than the safety valve opening pressure value. The second valve may be a safety valve or a pressure regulating valve. This allows the pressure inside the container 14 to be appropriately controlled.

[0077] Furthermore, in this embodiment, pressure reducing valve 31 is configured so that valve element 32 is biased to open passage 18, and passage 18 is closed by mechanically or manually moving valve element 32 of pressure reducing valve 31, and safety valve 34 is configured so that valve element 35 is biased to close passage 18, and when the pressure inside container 14 exceeds the biasing force, valve element 35 of safety valve 34 moves, thereby releasing the pressure inside container 14. This makes it possible to reduce the size and cost of cooker 10 and improve the safety of cooker 10.

[0078] In this embodiment, pressure reducing valve 31 is configured so that passage 18 is closed when valve element 32 is moved downward, and safety valve 34 is configured so that passage 18 is opened when valve element 35 is moved upward. This makes it possible to reduce the size and cost of cooker 10 and improve the safety of cooker 10.

[0079] (Other embodiments) As described above, Embodiments 1 to 3 have been described as examples of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to these, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made. Furthermore, it is also possible to combine the components described in Embodiments 1 to 3 above to create new embodiments.

[0080] In any of the valve units of Embodiments 1 to 3, one or more pressure reducing valves, one or more pressure regulating valves, and one or more safety valves may be provided in any combination. The first valve that releases the pressure inside the container 14 when the pressure exceeds a predetermined value may be a safety valve or a pressure regulating valve. The second valve for controlling the pressure inside the container 14 may be a pressure reducing valve or a pressure regulating valve. All of the valves may be provided coaxially, or at least some of the valves may be provided adjacent to each other. The arrangement order from the outside of the multiple valves provided coaxially may also be arbitrary.

[0081] When manually moving a valve such as a pressure reducing valve, pressure adjusting valve, or safety valve to exhaust steam from inside the container 14 to the outside, the cooker 10 may receive instructions from the user via a user interface provided on the cooker 10. FIG. 9 shows an example of the user interface of the cooker 10. The user interface includes an input unit 53 including buttons and the like for receiving user input instructions, and a display unit 54 for displaying various information. The cooker 10 may receive instructions from the user to operate a drive means such as a stepping motor via the buttons and the like on the input unit 53, and may move the valve by controlling the drive means in accordance with the operation instructions. In this case, the cooker 10 may display the amount of steam exhausted and the like on the display unit 54, allowing the user to visually adjust the exhaust volume and the like. This allows the user to open and close the valve at any timing and speed, thereby enabling safe and prompt exhaust without overflow after cooking.

[0082] (Addendum) The above description of the embodiments discloses the following techniques. (Technology 1) a container for accommodating an object to be heated; a heating unit that heats the container or the inside of the container; a first valve provided in a passage for releasing steam generated inside the container to the outside, the first valve releasing pressure when the pressure inside the container exceeds a predetermined value; a second valve disposed in the passage for controlling the pressure inside the container; Equipped with The first valve and the second valve are integrally configured. Cooker. This configuration allows the size, number of parts, and manufacturing costs of the cooking appliance 10 to be reduced. (Technology 2) a pressure control unit that controls the pressure inside the container by controlling the opening and closing of the second valve; The cooker according to claim 1. This configuration allows the pressure inside the container 14 to be appropriately adjusted. (Technology 3) The first valve is provided outside the second valve. The cooker according to Art 1 or 2. This configuration allows the size and cost of cooking appliance 10 to be reduced, and also allows the safety of cooking appliance 10 to be improved. (Technology 4) The first valve and the second valve are opened and closed by the vertical movement of a valve element. The cooker according to Art 3. This configuration allows the size, number of parts, and manufacturing costs of the cooking appliance 10 to be reduced. (Technology 5) the first valve is a safety valve that releases pressure when the pressure inside the container exceeds a safety valve opening pressure value, or a pressure regulating valve that releases pressure when the pressure inside the container exceeds a pressure regulating valve opening pressure value that is lower than the safety valve opening pressure value, The second valve is a pressure reducing valve that reduces the pressure inside the container when open and increases the pressure inside the container when closed, or the safety valve or the pressure regulating valve. The cooker according to any one of claims 3 to 4. This configuration allows the pressure inside the container 14 to be appropriately controlled. (Technology 6) the second valve is configured such that a valve element is biased to close the passage, and the passage is opened by mechanically or manually moving the valve element of the second valve; The first valve is configured such that a valve element is biased to close the passage, and when the pressure inside the container exceeds the biasing force, the valve element of the first valve moves to release the pressure inside the container. A cooker according to any one of techniques 3 to 5. This configuration allows the size and cost of cooking appliance 10 to be reduced, and also allows the safety of cooking appliance 10 to be improved. (Technology 7) the second valve is configured so that the passage is opened when a valve body is moved downward; The first valve is configured such that the passage is opened when a valve body is moved upward. 10. The cooker according to claim 6. This configuration allows the size and cost of cooking appliance 10 to be reduced, and also allows the safety of cooking appliance 10 to be improved. (Technology 8) The first valve is provided inside the second valve. The cooker according to Art 1 or 2. This configuration allows the size and cost of cooking appliance 10 to be reduced, and also allows the safety of cooking appliance 10 to be improved. (Technology 9) The first valve and the second valve are opened and closed by the vertical movement of a valve element. The cooker according to claim 8. This configuration allows the size, number of parts, and manufacturing costs of the cooking appliance 10 to be reduced. (Technology 10) the first valve is a safety valve that releases pressure when the pressure inside the container exceeds a safety valve opening pressure value, or a pressure regulating valve that releases pressure when the pressure inside the container exceeds a pressure regulating valve opening pressure value that is lower than the safety valve opening pressure value, The second valve is a pressure reducing valve that reduces the pressure inside the container when open and increases the pressure inside the container when closed, or the safety valve or the pressure regulating valve. The cooker according to technology 8 or 9. This configuration allows the pressure inside the container 14 to be appropriately controlled. (Technology 11) the second valve is configured such that a valve element is biased to open the passage, and the passage is closed by mechanically or manually moving the valve element of the second valve; The first valve is configured such that a valve element is biased to close the passage, and when the pressure inside the container exceeds the biasing force, the valve element of the first valve moves to release the pressure inside the container. A cooker according to any one of claims 8 to 10. This configuration allows the size and cost of cooking appliance 10 to be reduced, and also allows the safety of cooking appliance 10 to be improved. (Technology 12) the second valve is configured such that the passage is closed when a valve element is moved upward; The first valve is configured such that the passage is opened when a valve body is moved upward. The cooker according to claim 11. This configuration allows the size and cost of cooking appliance 10 to be reduced, and also allows the safety of cooking appliance 10 to be improved. [Industrial Applicability]

[0083] The present invention can be used in a cooking appliance. [Explanation of symbols]

[0084] 10...Cooker 11...Main unit 12…Lid 13...Handle 14...Container 15...Stirring blade 16...Exhaust hole 17...Inner lid 18...Aisle 19...Inner lid exhaust hole 20...Valve unit 21...Reducing valve 22...Valve body 23...Reducing valve spring 24...Safety valve 25...Valve body 26...Safety valve spring 27...Pressure adjusting valve 28...Valve body 29... Pressure regulating valve spring 30...Valve unit 31...Reducing valve 32...Valve body 33...Reducing valve spring 34...Safety valve 35...Valve body 36...Safety valve spring 53...Input section 54...Display section 81...Flow path 82...Flow path 83...Flow path 84...Flow path 85...Flow path 86...Central safety valve spring 88...Nozzle fixing spring 89...Fixing nut 90...Cover 91...hole 92…hole 93...Seal part 94...range 95...Outer shell 96...Opening 97...Pedestal 98...Aisle 99...Spring

Claims

1. a container for accommodating an object to be heated; a heating unit that heats the container or the inside of the container; a first valve provided in a passage for releasing steam generated inside the container to the outside, the first valve releasing pressure when the pressure inside the container exceeds a predetermined value; a second valve disposed in the passage for controlling the pressure inside the container; Equipped with the first valve and the second valve are integrally configured, the first valve and the second valve open and close the passage by vertically moving valve bodies; The second valve is configured such that the passage is opened when a valve body is moved downward. Cooker.

2. The first valve is configured such that the passage is opened when a valve body is moved upward. The cooking device according to claim 1 .

3. a pressure control unit that controls the pressure inside the container by controlling the opening and closing of the second valve; The cooking device according to claim 1 or 2.

4. The first valve is provided outside the second valve. The cooking device according to claim 1 or 2.

5. The first valve is provided inside the second valve. The cooking device according to claim 1 or 2.

6. the first valve is a safety valve that releases pressure when the pressure inside the container exceeds a safety valve opening pressure value, or a pressure regulating valve that releases pressure when the pressure inside the container exceeds a pressure regulating valve opening pressure value that is lower than the safety valve opening pressure value, The second valve is a pressure reducing valve that reduces the pressure inside the container when open and increases the pressure inside the container when closed, or the safety valve or the pressure regulating valve. The cooking device according to claim 1 or 2.

7. the second valve is configured such that a valve element is biased to close the passage, and the passage is opened by mechanically or manually moving the valve element of the second valve; The first valve is configured such that a valve element is biased to close the passage, and when the pressure inside the container exceeds the biasing force, the valve element of the first valve moves to release the pressure inside the container. The cooking device according to claim 1 or 2.

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