Gas circuit integration device and cooking utensil

Abstract

The utility model discloses a gas circuit integration device for a cooking utensil and the cooking utensil. The cooking utensil is provided with a cooking cavity. The gas circuit integration device comprises a device shell and a movable partition plate assembly. A device inner cavity defined by the device shell comprises a ventilation cavity. The cavity wall of the ventilation cavity is provided with a shell opening which can be communicated with the external environment. The movable partition plate assembly is arranged in the device inner cavity, and an exhaust cavity is defined by the movable partition plate assembly and part of the device shell and used for being communicated with the cooking cavity. The movable partition plate assembly is provided with a first opening position and a first closing position, and when the movable partition plate assembly is located at the first opening position, a first opening communicating with the ventilation cavity is formed between the movable partition plate assembly and the device shell; when the movable partition plate assembly is located at the first closing position, the air suction and exhaust cavity is separated from the ventilation cavity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooking utensils, in particular to an air path integration device for a cooking utensil and a cooking utensil with the air path integration device. BACKGROUND

[0002] In order to improve the cooking effect of the rice cooker, the existing rice cooker discharges steam by setting a steam valve. Generally, the steam valve of the cooking utensil always communicates the inner container with the external environment, which is not conducive to the heat preservation of the cooking space.

[0003] Therefore, there is a need for an air path integration device and a cooking utensil to at least partially solve the above problems. SUMMARY

[0004] A series of simplified concepts are introduced in the summary section, which will be further described in detail in the detailed description section. The summary section of the present application does not mean to attempt to limit the key features and essential technical features of the claimed technical solutions, nor to determine the protection scope of the claimed technical solutions.

[0005] To at least partially solve the above problems, the first aspect of the present application provides an air path integration device for a cooking utensil, the cooking utensil having a cooking cavity for containing food materials, the air path integration device comprising:

[0006] a device housing, the device housing enclosing a device inner cavity;

[0007] a ventilation cavity, which is part of the device inner cavity, the cavity wall of the ventilation cavity being provided with a housing opening that can communicate with the external environment; and

[0008] a movable partition assembly arranged in the device inner cavity and defining an exhaust cavity with part of the device housing, the exhaust cavity being used to communicate with the cooking cavity;

[0009] wherein the movable partition assembly has a first closed position and a first open position, when the movable partition assembly is in the first open position, a first opening is formed between the movable partition assembly and the device housing, which communicates with the ventilation cavity; when the movable partition assembly is in the first closed position, the exhaust cavity is cut off from the ventilation cavity.

[0010] According to the present application, when the first opening is closed, the exhaust cavity does not communicate with the environment, which is conducive to the heat preservation of the cooking cavity and maintains a certain pressure. When the first opening is opened, the cooking cavity communicates with the environment through the exhaust cavity and the ventilation cavity, and can directly discharge steam. The air path integration device changes the on-off relationship of the two cavities by setting the exhaust cavity and the ventilation cavity, and respectively realizes the functions of pressure cooking and steam discharge.

[0011] Optionally, the mobile partition assembly is configured to move from the first closed position to the first open position under the action of steam pressure in the cooking cavity.

[0012] According to the present application, the opening and closing of the first opening is driven by steam, so that the gas path integration device opens the first opening when it is really necessary to exhaust steam, and the control is more accurate. The first opening is opened and closed in a mechanical manner, which saves electric control components, and the control is simple and the cost is lower.

[0013] Optionally, the gas path integration device further comprises a mounting through hole, and the mobile partition assembly is arranged in the mounting through hole.

[0014] According to the present application, the mobile partition assembly is simple to install.

[0015] Optionally, the mobile partition assembly is movable relative to the mounting through hole in the axial direction of the mounting through hole between the first open position and the first closed position.

[0016] According to the present application, the mobile partition assembly moves in the mounting through hole to open and close the first opening.

[0017] Optionally, the mobile partition assembly comprises:

[0018] a telescopic part connected to the periphery of the mounting through hole and telescopic in the axial direction of the mounting through hole between the first open position and the first closed position; and

[0019] a mobile partition defining the exhaust cavity with part of the device housing to accept the action of steam pressure, the mobile partition being arranged in the mounting through hole and connected to the telescopic part to move synchronously with the telescopic part between the first open position and the first closed position.

[0020] According to the present application, the telescopic part is used to be installed in the mounting position, and the mobile partition is installed in the telescopic part.

[0021] Optionally, the telescopic part comprises a telescopic part outer peripheral part and a telescopic part intermediate part, the telescopic part outer peripheral part being connected to the telescopic part intermediate part at the periphery of the telescopic part intermediate part, the telescopic part outer peripheral part being used to be connected to the periphery of the mounting through hole, and the telescopic part intermediate part being configured to be movable relative to the telescopic part outer peripheral part in the axial direction between the first open position and the first closed position.

[0022] The mobile partition passes through the mounting through hole and is connected to the telescopic part intermediate part.

[0023] According to the present application, the telescopic part intermediate part and the mobile partition can move in the mounting through hole, and the mobile partition assembly structure is adapted to the mounting through hole.

[0024] Optionally, the mobile partition assembly further comprises a pressing diagram, which presses the outer circumferential part of the telescopic part to the mouth of the mounting through hole.

[0025] According to the present application, the telescopic part is simple to install in the mounting position.

[0026] Optionally, the pressing diagram connecting part is detachably connected with the mounting position.

[0027] According to the present application, the mobile partition assembly is detachable, which is convenient for cleaning.

[0028] Optionally, the telescopic part is connected to the side of the mounting through hole away from the first opening.

[0029] According to the present application, the telescopic part is connected to the side of the mounting through hole away from the first opening, which is convenient for installing the telescopic part, and is beneficial for the mobile partition to have a larger moving stroke and can fully open the first opening.

[0030] Optionally, the telescopic part is made of elastic material.

[0031] According to the present application, the elastic material is convenient for realizing telescopic.

[0032] Optionally, the middle part of the telescopic part comprises a wrinkle structure in the radial direction, and the wrinkle structure is concave-convex in the axial direction.

[0033] According to the present application, the elastic material is configured as a wrinkle structure, and the wrinkle can be stretched and reset, thereby realizing the movement in the axial direction.

[0034] Optionally, the middle part of the telescopic part is detachably connected with the mobile partition.

[0035] According to the present application, the mobile partition can be detached from the telescopic part, which is convenient for cleaning.

[0036] Optionally, the mobile partition is provided with a partition flange, and the middle part of the telescopic part is tightly matched with the partition flange.

[0037] According to the present application, the mobile partition and the telescopic part are connected through elastic tight matching.

[0038] Optionally, the partition flange is configured as a radially outward annular flange extending in the circumferential direction, the middle part of the telescopic part is configured with a second groove extending in the circumferential direction, and the groove opening and groove bottom of the second groove are opposite in the radial direction and used for accommodating the annular flange; and / or

[0039] The intermediate part of the telescopic member is configured with a radially inward annular protrusion extending in the circumferential direction, and the flange of the movable partition plate is configured with a first groove extending in the circumferential direction, the groove opening and groove bottom of the first groove are opposite in the radial direction, and the first groove is used for accommodating the annular protrusion.

[0040] According to the present application, the connection mode of the telescopic member and the movable partition plate is simple.

[0041] Optionally, the movable partition plate comprises:

[0042] a partition plate connecting part, the partition plate connecting part is arranged in the mounting through hole, and an end of the partition plate connecting part away from the first opening is connected to the telescopic member; and

[0043] a partition plate flange plate, arranged on the outer circumferential side of the partition plate connecting part, used for contacting the device shell.

[0044] According to the present application, the movable partition plate has a simple structure.

[0045] Optionally,

[0046] The partition plate flange plate is provided with a reinforcing rib; and / or

[0047] The mounting through hole is provided with at least one guide column extending towards the first opening in the axial direction, and the partition plate flange plate is provided with at least one guide hole corresponding to the guide column, used for accommodating the guide column.

[0048] According to the present application, the reinforcing rib can enhance the strength of the movable partition plate. The cooperation of the guide column and the guide hole enables the movable partition plate to move stably in the axial direction.

[0049] Optionally, the bottom wall of the air exhaust cavity is provided with an exhaust port, the exhaust port is used for communicating with the cooking cavity, and the movable partition plate assembly forms the top wall of the air exhaust cavity.

[0050] According to the present application, the first opening is equivalent to being arranged on the side wall of the air exhaust cavity, when the first opening is opened, the side wall of the air exhaust cavity is cracked along the circumferential direction, and the first opening has a large area relative to the air exhaust cavity, so that when the first opening is opened, the steam can be quickly released.

[0051] Optionally, the axis of the exhaust port is substantially coincided with the axis of the side wall of the air exhaust cavity.

[0052] According to the present application, the axis of the exhaust port is substantially coincided with the axis of the side wall of the air exhaust cavity, which is beneficial to the steam of the cooking cavity acting on the movable partition plate assembly uniformly.

[0053] Optionally, the air passage cavity is located on the outer circumferential side of the side wall of the air exhaust cavity and surrounds the first opening.

[0054] According to the present application, the relative positions of the venting cavity and the exhaust cavity are beneficial to rapid steam discharge, and the exhaust cavity and the venting cavity can be formed by one component.

[0055] Optionally, the bottom wall of the exhaust cavity and the bottom wall of the venting cavity extend in the same plane.

[0056] According to the present application, the exhaust cavity and the venting cavity are simple to process.

[0057] Optionally, an action component is arranged in the device cavity, and the moving partition assembly moves from the first open position to the first closed position under the action of the action component.

[0058] According to the present application, the moving partition assembly moves from the first open position to the first closed position under the action of the action component, without the need for an electric control component, so that the control is simple and the cost is lower.

[0059] Optionally,

[0060] A first sealing member is arranged between the device housing and the moving partition assembly.

[0061] According to the present application, when the first opening is closed, the moving partition assembly is in sealing contact with the device housing, thereby blocking the communication between the exhaust cavity and the environment, so that a certain pressure can be maintained in the cooking cavity.

[0062] The second aspect of the present application provides a cooking appliance, which comprises:

[0063] a cooking cavity for containing food materials; and

[0064] The gas path integration device according to any one of the first aspect,

[0065] The exhaust cavity is in communication with the cooking cavity.

[0066] According to the present application, when the first opening is closed, the exhaust cavity is not in communication with the environment, which is beneficial to heat preservation and maintaining a certain pressure in the cooking cavity. When the first opening is opened, the cooking cavity is in communication with the environment through the exhaust cavity and the venting cavity, and steam can be directly discharged. The gas path integration device changes the on-off relationship between the two cavities by arranging the exhaust cavity and the venting cavity, thereby realizing the functions of pressure cooking and steam discharge, respectively.

[0067] Optionally, the cooking appliance further comprises:

[0068] a pot body, wherein the cooking cavity is arranged in the pot body; and

[0069] a cover body for covering the pot body, wherein the gas path integration device is arranged in the cover body, and when the cover body covers the pot body, the exhaust cavity is in communication with the cooking cavity.

[0070] According to the present application, the location of the gas path integration device is reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] The following drawings of the present application are used as part of the present application for understanding the present application. The drawings show representative embodiments of the present application and are used to explain the principles of the present application rather than to limit the present application.

[0072] In the attached figure:

[0073] Figure 1 is a partial perspective schematic diagram of a cooking appliance according to the first embodiment of the present application;

[0074] Figure 2 for Figure 1 A schematic top view of a portion of the cooking appliance shown;

[0075] Figure 3 for Figure 1 A schematic side cutaway view of the cooking appliance shown;

[0076] Figure 4 for Figure 1 A partially exploded perspective view of the cooking appliance shown;

[0077] Figure 5 for Figure 2 A schematic top view of a portion of the lining cover;

[0078] Figure 6 for Figure 1 A schematic diagram of the gas path structure of the cooking appliance shown;

[0079] Figure 7 for Figure 1 A side cross-sectional schematic diagram of the gas path integration device;

[0080] Figure 8 for Figure 1 A three-dimensional cross-sectional schematic diagram of the gas path integration device;

[0081] Figure 9 for Figure 8 Enlarged view of section A;

[0082] Figure 10 for Figure 1 A three-dimensional schematic diagram of the gas path integration device;

[0083] Figure 11 for Figure 1 A schematic side view of the gas path integration device;

[0084] Figure 12 for Figure 1 A top view schematic diagram of the gas path integration device;

[0085] Figure 13 Figure 1 is a perspective view of a gas circuit integration device according to an embodiment of the present application; Figure 1 Figure 2 is a bottom view of the gas circuit integration device of Figure 1 ;

[0086] Figure 14 Figure 3 is a perspective exploded view of the gas circuit integration device of Figure 1 ; Figure 1 Figure 4 is a top view of the gas circuit integration device of Figure 1 ;

[0087] Figure 15 Figure 5 is a side view of the gas circuit integration device of Figure 1 ; Figure 7 Figure 6 is a perspective view of a lower cover of the device of Figure 1 ;

[0088] Figure 16 Figure 7 is a top view of the lower cover of the device of Figure 1 ; Figure 7 Figure 8 is a side view of the lower cover of the device of Figure 1 ;

[0089] Figure 17 Figure 9 is a perspective view of an upper partition pre-assembly of the device of Figure 1 ; Figure 7 Figure 10 is a top view of the upper partition pre-assembly of the device of Figure 1 ;

[0090] Figure 18 Figure 11 is a side view of the upper partition pre-assembly of the device of Figure 1 ; Figure 14 Figure 12 is a perspective view of a lower partition pre-assembly of the device of Figure 1 ;

[0091] Figure 19 Figure 13 is a top view of the lower partition pre-assembly of the device of Figure 1 ; Figure 18 Figure 14 is a side view of the lower partition pre-assembly of the device of Figure 1 ;

[0092] Figure 20 Figure 15 is a bottom view of a lower partition of the device of Figure 1 ; Figure 18 Figure 16 is a side view exploded sectional view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position;

[0093] Figure 21 Figure 17 is a perspective view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position; Figure 14 Figure 18 is a top view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position;

[0094] Figure 22 Figure 19 is a side view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position; Figure 21 Figure 20 is a bottom view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position;

[0095] Figure 23 Figure 21 is a perspective view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position; Figure 21 Figure 22 is a top view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position;

[0096] Figure 24 Figure 23 is a side view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position; Figure 7 Figure 24 is a bottom view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position;

[0097] Figure 25 Figure 25 is a perspective view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position; Figure 1 Figure 26 is a side view exploded sectional view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position;

[0098] Figure 26 Figure 27 is a perspective view of the gas circuit integration device of Figure 1, with the mobile partition assembly in a first closed position and the floating seal assembly in a second closed position; Figure 1Figure 6 is a side view of the gas path integration device of Figure 1, wherein the movable partition assembly is in the first open position and the floating seal assembly is in the second open position;

[0099] Figure 27 Figure 7 is a perspective view of the movable partition assembly of Figure 1; Figure 7

[0100] Figure 28 Figure 8 is a side view of the movable partition assembly of Figure 1; Figure 7

[0101] Figure 29 Figure 9 is a top view of the movable partition assembly of Figure 1; Figure 7

[0102] Figure 30 Figure 10 is a perspective view of the floating seal assembly of Figure 1; Figure 7

[0103] Figure 31 Figure 11 is a side view of the floating seal assembly of Figure 1; Figure 7

[0104] Figure 32 Figure 12 is a bottom view of the floating seal assembly of Figure 1; Figure 7

[0105] Figure 13 is a side view of a partial gas path integration device of a cooking appliance according to a second embodiment of the present application; Figure 33

[0106] Figure 14 is a side view of a partial gas path integration device of a cooking appliance according to a third embodiment of the present application. Figure 34 BRIEF DESCRIPTION OF THE DRAWINGS

[0107] 10: cover 11: gasket

[0108] 11A: gasket receiving groove 12: removable cover

[0109] 13: face cover 14: airflow generating device

[0110] 15: airflow inlet 16: airflow outlet

[0111] 17A: top temperature sensor 17B: bottom temperature sensor

[0112] 18: air outlet passage 19: air inlet passage

[0113] 20: pot body 21: pot liner

[0114] 22: cooking cavity 28: heating device

[0115] 23: handle 24: handle cover​​​​​

[0116] 30: air path integration device 31: device upper cover

[0117] 31A: upper cover top wall 31B: upper cover side wall

[0118] 31C: upper cover annular wall 32: upper divider

[0119] 32A: partition 32B: upper groove side wall

[0120] 32C: lower groove side wall 32D: partition connecting portion

[0121] 32E: through hole

[0122] 33: lower divider 33A: air vent

[0123] 33B: mounting position 33C: mounting through hole

[0124] 33D: through hole 34: device lower cover

[0125] 34A: lower cover bottom wall 34B: lower cover side wall

[0126] 34C, 34D: through hole 35: second one-way valve

[0127] 36: moving partition assembly 37: floating seal assembly

[0128] 38: device housing 39: device inner cavity

[0129] 41: first opening 42: second opening

[0130] 43: third opening 45: first blocking piece

[0131] 46: blocking piece side edge 47: blocking piece middle portion

[0132] 48: guide column 49: second blocking piece

[0133] 51: first common cavity wall 52: second common cavity wall

[0134] 53: upper divider preassembly 54: lower divider preassembly

[0135] 55: housing aperture 55A: first housing aperture

[0136] 55B: second housing aperture 56: exhaust pipe

[0137] 57: third air vent pipe 58: first air vent pipe

[0138] 59: second air vent pipe 61: telescopic piece

[0139] 61A: outer peripheral portion of the telescopic member

[0140] 61C: pleated structure 61E: annular protrusion

[0141] 61H: second groove 64: moving partition

[0142] 64A: partition flange plate 64B: partition connecting portion

[0143] 64C: accommodating groove 64D: guide hole

[0144] 64E: first groove 64F, 64G: through hole

[0145] 64H: partition flange 65: pressing diagram

[0146] 66: pressing diagram connecting portion 67: pressing ring

[0147] 69: reinforcing rib 71: floating member

[0148] 71A: first end portion of the floating member 71B: second end portion of the floating member

[0149] 71C: floating member connecting portion 71E: first mounting groove

[0150] 71F: second mounting groove 75: blocking member

[0151] 76: diaphragm mounting hole 77: limiting member

[0152] 78: counterweight member 81: air blowing cavity

[0153] 82: switching cavity 83: air pumping and discharging cavity

[0154] 83A: bottom wall of the air pumping and discharging cavity 83B: annular wall

[0155] 83C: air discharging port 83D: air pumping port

[0156] 83E: steam discharging side 83F: cold air communicating side

[0157] 84: air passage cavity 84A: bottom wall of the air passage cavity

[0158] 85: air discharging cavity 86: combined cavity

[0159] 91A: first sealing member 91B: second sealing member

[0160] 91C: third sealing member 91D: fourth sealing member

[0161] 91E: fifth sealing member

[0162] 94A: first rotating buckle 94B: second rotating buckle

[0163] 94C: third rotating buckle 100: cooking utensil

[0164] 110: air path structure 111: first air path

[0165] 112: second air path 113: third air path

[0166] 114: fourth air path 115: fifth air path

[0167] DA: axial direction

[0168] DR: radial direction PA: axis DETAILED DESCRIPTION

[0169] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail so as not to unnecessarily obscure the present application.

[0170] In order to thoroughly understand the present application, detailed descriptions will be given in the following description. It should be understood that these embodiments are provided in order to make the disclosure of the present application thorough and complete, and to fully convey the ideas of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the present application is not limited to the special details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail as follows, however, in addition to these detailed descriptions, the present application can have other embodiments.

[0171] The ordinal numbers such as "first" and "second" cited in the present application are merely identifiers, and have no other meaning, such as a specific order, etc. Also, for example, the term "first part" itself does not imply the existence of "second part", and the term "second part" itself does not imply the existence of "first part". The use of "first", "second", and "third" words does not indicate any order, and these words can be interpreted as names.

[0172] It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like used in the present application are for illustrative purposes only, and are not limiting.

[0173] In this document, "equal", "same", and the like are not strictly mathematical and / or geometric limitations, but also include errors allowed by those skilled in the art and manufacturing or use.

[0174] Unless otherwise stated, numerical ranges herein include not only the entire range between its two endpoints but also the several sub-ranges contained therein.

[0175] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings.

[0176] The present application provides a cooking appliance.

[0177] like Figures 1 to 4 As shown, in a first embodiment, the cooking utensil 100 according to the present application may include a pot body 20 and a lid body 10. The pot body 20 includes, for example, a pot inner body 21. Generally, the pot body 20 may have a cylindrical (or other shaped) accommodating cavity, and the pot inner body 21 may be freely placed in or taken out of the accommodating cavity to facilitate the cleaning of the pot inner body 21. The pot inner body 21 is made of, for example, a metal material and is constructed as a rotating body with an opening and an inner cavity formed by a pot wall. The capacity of the pot inner body 21 is generally less than 6L, for example, the capacity of the pot inner body 21 may be 2L or 4L, etc. The pot inner body 21 has a pot inner body opening for taking in and placing food, and the internal space of the pot inner body 21 forms a cooking cavity 22, which is used to hold and heat food. The lid body 10 may be pivotally connected to the pot body 20 by a pivot shaft for covering the pot body 20.

[0178] Cooking appliance 100 includes a heating device 28. This device is typically located at the bottom of pot body 20, below inner pot 21. Heating device 28 heats inner pot 21 and the food within, thereby achieving cooking. Heating device 28 can be configured as, for example, a heating plate, an electromagnetic heating coil, or the like.

[0179] Cooking appliance 100 includes a top temperature sensor 17A, typically located on lid 10, for detecting the top temperature of cooking cavity 22. A bottom temperature sensor 17B is also located within pot body 20 for detecting the bottom temperature of cooking cavity 22. Bottom temperature sensor 17B is, for example, in contact with the bottom wall of pot inner 21.

[0180] In addition, the cooking appliance 100 further includes a control device (not shown) for controlling the cooking of the cooking appliance 100. The control device may be, for example, a microprocessor unit (MCU). The control device is electrically connected to the heating device 28 and the temperature sensor so that the control device can control the operation of the heating device 28 based on the detection value of the temperature sensor.

[0181] It should be noted that, in the present application, the directional terms "upper" and "lower" are those directions determined based on the cooking appliance 100 being placed upright with the lid 10 in a closed state.

[0182] It should be noted that although the partial structure of the cooking utensil 100 is schematically described at this time, these enumerations are only exemplary and cannot be regarded as a limitation on the structure of the cooking utensil 100 of the embodiments of the present application.

[0183] As shown in Figure 3 and Figure 5 , the cover body 10 comprises, for example, a face cover 13, a backing cover 11 and a detachable cover 12. The backing cover 11 constitutes the framework of the cover body 10, and various components (for example, the top temperature sensor 17A) in the cover body 10 are mounted on the backing cover 11. The backing cover 11 is, for example, pivotally connected to the pot body 20, so that the cover body 10 can cover the pot body 20. The face cover 13 forms the outer shell of the cover body 10 and is mounted on the backing cover 11. The detachable cover 12 is detachably connected to the backing cover 11 and is located at the bottom of the cover body 10. The detachable cover 12 is used to cover the pot opening of the inner pot 21.

[0184] The cooking process of the cooking utensil 100 comprises, for example, a preheating procedure, a water absorption procedure, a boiling procedure, a boiling maintenance procedure, a braising procedure and a temperature maintenance procedure. The preheating procedure is used to preliminarily heat the foodstuff. In the water absorption procedure, the foodstuff is fully water-absorbed to improve the taste. In the boiling procedure, the foodstuff is heated to a temperature close to boiling by using a high fire, and then in the boiling maintenance procedure, the foodstuff is boiled to be substantially cooked. In the braising procedure, the residual free water is dried to further cook the foodstuff. Finally, in the temperature maintenance procedure, the foodstuff is kept warm so that the user can eat hot food.

[0185] In order to improve the cooking quality, generally, in the water absorption procedure, the cooking cavity 22 is subjected to negative pressure, that is, the air pressure in the cooking cavity 22 is lower than the ambient air pressure, and the negative pressure environment is beneficial to the foodstuff to be fully water-absorbed. In the temperature maintenance procedure, the cooking cavity 22 is also subjected to negative pressure, and the negative pressure environment is beneficial to the food preservation. In order to improve the cooking efficiency, in the boiling maintenance procedure, the cooking cavity 22 is subjected to cold air blowing, that is, the ambient air is discharged into the cooking cavity 22, which plays a role in preventing the pot from overflowing. Thus, in the boiling maintenance procedure, the heating device 28 can maintain a relatively high power, which is beneficial to the foodstuff to be quickly cooked.

[0186] In order to realize the above functions, referring back to Figure 6 , the cooking utensil 100 further comprises an air flow generating device 14 and an air path integration device 30. The air flow generating device 14, the air path integration device 30 and the cooking cavity 22 are organically connected to form an air path structure 110 of the cooking utensil 100, which can realize the steam discharge, the negative pressure extraction and the cold air blowing of the cooking cavity 22.

[0187] The airflow generating device 14 is a component that promotes airflow, such as an air pump. The airflow generating device 14 includes an airflow inlet 15 and an airflow outlet 16. When the airflow generating device 14 is in operation, airflow enters the airflow generating device 14 through the airflow inlet 15 and exits the airflow generating device 14 through the airflow outlet 16. The airflow generating device 14 is, for example, electrically connected to a control device to operate under the control of the control device.

[0188] like Figures 6 to 8 As shown, the gas path integration device 30 has a device shell 38, and the device shell 38 surrounds the device cavity 39. The device shell 38 can be composed of the shells or partial shells of multiple components of the gas path integration device 30 in an assembled state. A shell opening 55 is provided on the device shell 38, and the device cavity 39 is connected to the external environment through the shell opening 55. The device cavity 39 is provided with a first gas path 111 (see the red arrow air flow path in the figure), a second gas path 112 (see the brown arrow air flow path in the figure), a third gas path 113 (see the blue arrow air flow path in the figure), a fourth gas path 114 (see the green arrow air flow path in the figure) and a fifth gas path 115 (see the purple arrow air flow path in the figure). Each gas path is also an air flow channel, which can be composed of any structure such as a pipe, a cavity, an opening, etc. that can allow gas to pass through it. In other words, the pipes, cavities, openings, etc. passed by each air flow path are all components of the gas path.

[0189] Specifically, the first air path 111 connects the cooking cavity 22 with the air inlet 15, with air flowing from the cooking cavity 22 to the air inlet 15. The second air path 112 connects the air outlet 16 with the housing opening 55, with air flowing from the air outlet 16 to the housing opening 55. The third air path 113 connects the cooking cavity 22 with the housing opening 55, with air flowing from the cooking cavity 22 to the housing opening 55. The fourth air path 114 connects the housing opening 55 with the air inlet 15, with air flowing from the housing opening 55 to the air inlet 15. The fifth air path 115 connects the air outlet 16 with the cooking cavity 22. Thus, the first and second air paths 111 and 112 can create a negative pressure in the cooking cavity 22 when the airflow generating device 14 is in operation. The third air path 113 can exhaust steam from the cooking cavity 22. The fourth and fifth air paths 114 and 115 can blow cool air into the cooking cavity 22 when the airflow generating device 14 is in operation.

[0190] The first and second air paths 111 and 112 are connected in an exhaust mode, in which the air path integration device 30 extracts air from the cooking cavity 22. The third air path 113 is connected in an exhaust mode, in which the air path integration device 30 exhausts steam from the cooking cavity 22. The fourth and fifth air paths 114 and 115 are connected in an air blowing mode, in which the air path integration device 30 introduces air into the cooking cavity 22.

[0191] The first air path 111, the second air path 112, the fourth air path 114 and the fifth air path 115 are connected with the air flow generating device 14, and the air flow direction therein is determined by the air flow generating device 14. The first air path 111 and the fourth air path 114 are upstream air paths of the air flow generating device 14. The second air path 112 and the fifth air path 115 are downstream air paths of the air flow generating device 14. The third air path 113 is not connected with the air flow generating device 14, and the air flow direction therein is determined by the air pressure at both ends of the air path. When the food is boiled, a large amount of hot steam is generated in the cooking cavity 22, and the air pressure of the steam is higher than the ambient air pressure, so the air flow flows from the cooking cavity 22 to the housing opening 55.

[0192] It can be seen that the air path integration device 30 is connected with the air flow generating device 14 and the cooking cavity 22, or in other words, the device inner cavity 39 is in communication with the air flow generating device 14 and the cooking cavity 22, and the air path integration device 30 internally integrates the air paths for extracting negative pressure, discharging steam and blowing cold wind for the cooking cavity 22. The integrated design reduces the number of components of the cooking utensil 100 and makes assembly easier.

[0193] Preferably, the air path integration device 30 and the air flow generating device 14 are both arranged in the cover body 10, for example, mounted in the cover 11. As shown in Figure 4 and Figure 5 , the cover 11 is provided with a cover accommodating groove 11A for accommodating the air path integration device 30. The air path integration device 30 is detachably mounted in the cover accommodating groove 11A, for example, so as to facilitate user cleaning. It can be understood that the face cover 13 is provided with an opening at a position corresponding to the cover accommodating groove 11A.

[0194] For example, as shown in Figures 3 to 6 , the cover body 10 is provided with an air outlet passage 18 and an air inlet passage 19. When the cover body 10 covers the pot body 20, the air outlet passage 18 and the air inlet passage 19 are both in communication with the cooking cavity 22. The air path integration device 30 has an exhaust pipe 56, a third air pipe 57, a first air pipe 58 and a second air pipe 59. The exhaust pipe 56, the third air pipe 57, the first air pipe 58 and the second air pipe 59 are all in communication with the device inner cavity 39. When the air path integration device 30 is mounted to the cover body 10, the exhaust pipe 56 is in communication with the air outlet passage 18, and the second air pipe 59 is in communication with the air inlet passage 19, so that the device inner cavity 39 is in communication with the cooking cavity 22. The third air pipe 57 is in communication with the air flow inlet 15. The first air pipe 58 is in communication with the air flow outlet 16. Here, the communication between two components can be that the two components are directly connected, or the two components are connected through a pipeline such as a conduit, an air pipe, etc. The port of the pipeline can also be understood as the interface of the component. For example, the interfaces of the cover body 10 and the air flow generating device 14 for connecting with the air path integration device 30 are both arranged on the bottom wall of the accommodating groove 11A, and the interfaces of the air path integration device 30 are all arranged on the lower surface of the device shell 38, so as to facilitate the connection of the air path structure 110.

[0195] The first and fourth air paths 111, 114 are upstream of the airflow generating device 14 and can share the third vent pipe 57. Specifically, the third vent pipe 57 is connected to both the first and fourth air paths 111, 114. The third vent pipe 57 is also referred to as a tubular connector. The second and fifth air paths 112, 115 are downstream of the airflow generating device 14 and can share the first vent pipe 58. Specifically, the first vent pipe 58 is connected to both the second and fifth air paths 112, 115.

[0196] like Figure 7 and Figure 8 As shown, the internal cavity 39 of the device may include an air blowing cavity 81, a switching cavity 82, an exhaust and extraction cavity 83, a ventilation cavity 84, and an exhaust cavity 85. The housing openings 55 are provided in the walls of the ventilation cavity 84 and the exhaust cavity 85, but not in the walls of the air blowing cavity 81, the switching cavity 82, and the exhaust and extraction cavity 83. Therefore, the ventilation cavity 84 and the exhaust cavity 85 are always connected to the external environment. The exhaust and extraction cavity 83 is connected to both the exhaust pipe 56 and the third ventilation pipe 57, and thus is always connected to the cooking cavity 22 and the air flow inlet 15. The first ventilation pipe 58 is connected to the switching cavity 82, thereby always connecting to the air flow outlet 16. The air blowing cavity 81 is connected to the second ventilation pipe 59, and thus is always connected to the cooking cavity 22.

[0197] The structure of the air path integration device 30 located on the first air path 111 includes, in order along the airflow direction, an exhaust pipe 56, an exhaust chamber 83, and a third vent pipe 57. The structure of the air path integration device 30 located on the second air path 112 includes, in order along the airflow direction, a first vent pipe 58, a switching chamber 82, and an exhaust chamber 85. The switching chamber 82 and the exhaust chamber 85 are adjacent to each other. The structure of the air path integration device 30 located on the third air path 113 includes, in order along the airflow direction, an exhaust pipe 56, an exhaust chamber 83, and a vent chamber 84. The exhaust chamber 83 and the vent chamber 84 are adjacent to each other. The structure of the air path integration device 30 located on the fourth air path 114 includes, in order along the airflow direction, a vent chamber 84, an exhaust chamber 83, and the third vent pipe 57. The structure of the air path integration device 30 located on the fifth air path 115 includes, in order along the airflow direction, a first vent pipe 58, a switching chamber 82, an air blowing chamber 81, and a second vent pipe 59. The switching chamber 82 and the air blowing chamber 81 are adjacent to each other.

[0198] The switching chamber 82 and the blowing chamber 81 are collectively referred to as the combined chamber 86. The combined chamber 86 is used to connect the first vent pipe 58 and the second vent pipe 59. The combined chamber 86 is used to connect the first vent pipe 58 and the cooking chamber 22. The combined chamber 86 is used to connect the airflow outlet 16 and the second vent pipe 59. The combined chamber 86 is used to connect the airflow outlet 16 and the cooking chamber 22.

[0199] To make the gas path integration device 30 compact, components are shared among multiple gas paths. To make the gas path integration device 30 work in order, multiple valve devices are provided in the device inner cavity 39 to control the on-off of the gas paths.

[0200] For example, on the second gas path 112, a third opening 43 is provided on the shared cavity wall 51 (also referred to as the first shared cavity wall 51) between the switching cavity 82 and the exhaust cavity 85. When the third opening 43 is open, the second gas path 112 is on. When the second gas path 112 is on, the gas path downstream of the airflow generation device 14 in the gas path for drawing negative pressure in the cooking cavity 22 is on. When the third opening 43 is closed, the second gas path 112 is off. When the second gas path 112 is off, the gas path downstream of the airflow generation device 14 in the gas path for drawing negative pressure in the cooking cavity 22 is off.

[0201] The second one-way valve 35 in the device inner cavity 39 is used to open and close the third opening 43. When the second one-way valve 35 opens the third opening 43, the second gas path 112 is on, and allows the airflow to flow unidirectionally from the switching cavity 82 to the exhaust cavity 85 (i.e. allows the airflow to flow unidirectionally from the first air duct 58 to the exhaust cavity 85, allows the airflow to flow unidirectionally from the first air duct 58 to the housing opening 55, allows the airflow to flow unidirectionally from the airflow outlet 16 to the exhaust cavity 85, and allows the airflow to flow unidirectionally from the airflow outlet 16 to the housing opening 55). When the second one-way valve 35 is open, the gas path integration device 30 is in the air drawing mode, and an air drawing gas path is formed between the exhaust cavity 83, the third air duct 57, the airflow generation device 14, the first air duct 58, the switching cavity 82, and the exhaust cavity 85. When the second one-way valve 35 closes the third opening 43, the second gas path 112 is off.

[0202] On the fifth gas path 115, a second opening 42 is provided on the shared cavity wall 52 (also referred to as the second shared cavity wall 52) between the switching cavity 82 and the blowing cavity 81. When the second opening 42 is open, the fifth gas path 115 is on. When the fifth gas path 115 is on, the gas path downstream of the airflow generation device 14 in the gas path for blowing cold air into the cooking cavity 22 is on. When the second opening 42 is closed by the fifth one-way valve 37, the fifth gas path 115 is off. When the fifth gas path 115 is off, the gas path downstream of the airflow generation device 14 in the gas path for blowing cold air into the cooking cavity 22 is off.

[0203] The second opening 42 is located on the gas path for connecting the airflow outlet 16 and the cooking cavity 22 in the device inner cavity 39.

[0204] The fifth one-way valve 37 (also known as the floating seal assembly 37 ) in the device's internal cavity 39 is used to open and close the second opening 42. When the fifth one-way valve 37 opens the second opening 42, the fifth air path 115 is open, allowing one-way air flow from the switching chamber 82 to the blowing chamber 81 (i.e., allowing one-way air flow from the first vent pipe 58 to the blowing chamber 81, allowing one-way air flow from the first vent pipe 58 to the second vent pipe 59, allowing one-way air flow from the first vent pipe 58 to the cooking chamber 22, allowing one-way air flow from the air outlet 16 to the blowing chamber 81, allowing one-way air flow from the air outlet 16 to the second vent pipe 59, and allowing one-way air flow from the air outlet 16 to the cooking chamber 22). When the fifth one-way valve 37 closes the second opening 42, the fifth air path 115 is blocked. For example, the floating seal assembly 37 is movable relative to the second opening 42 (i.e., the device's internal cavity 39 or the device housing 38) between a second open position and a second closed position. When the floating seal assembly 37 is in the second open position, it opens the second opening 42, connecting the switching chamber 82 to the blowing chamber 81. A continuous air path is formed between the first vent pipe 58, the switching chamber 82, the blowing chamber 81, and the second vent pipe 59. When the floating seal assembly 37 is in the second closed position, it closes the second opening 42, isolating the switching chamber 82 from the blowing chamber 81. The second opening 42 and the floating seal assembly 37 are both located between the switching chamber 82 and the blowing chamber 81.

[0205] like Figure 7 As shown, the axial direction of the second opening 42 is DA. The floating seal assembly 37 extends through the second opening 42 and is movable in the second opening 42 along the axial direction DA between a second open position and a second closed position. A gap is defined between at least a portion of the floating seal assembly 37 (e.g., the portion of the floating seal assembly 37 that is adapted to move through the second opening 42) and the inner circumferential surface of the second opening 42. When the floating seal assembly 37 is in the second closed position (the position shown in the figure), the floating seal assembly 37 blocks the second opening 42. When the floating seal assembly 37 is in the second open position, the floating seal assembly opens the second opening 42, allowing airflow to flow through the gap between the floating seal assembly 37 and the inner circumferential surface of the second opening 42.

[0206] Further, the cooking appliance 100 is configured to, in the water absorbing process and / or the heat preserving process, make the second air path 112 conductive and the fifth air path 115 blocked; in the boiling maintaining process, make the second air path 112 blocked and the fifth air path 115 conductive. In other words, the cooking appliance 100 is configured to, in the water absorbing process and / or the heat preserving process, make the second one-way valve 35 open the third opening 43 and make the fifth one-way valve 37 close the second opening 42; in the boiling maintaining process, make the second one-way valve 35 close the third opening 43 and make the fifth one-way valve 37 open the second opening 42. Both the second air path 112 and the fifth air path 115 are downstream of the airflow generating device 14 and are used to guide the airflow discharged by the airflow generating device 14. When negative pressure needs to be drawn, the downstream air path for drawing negative pressure is connected to the environment and not connected to the cooking cavity 22; when cold air needs to be blown, the downstream air path for blowing cold air is connected to the cooking cavity 22 and not connected to the environment. Thus, the airflow is orderly and directionally guided to achieve the expected effect. In Figure 7 It can be clearly seen that the downstream air paths (the brown second air path 112 and the purple fifth air path 115) of the airflow generating device 14 are divided in the shared switching cavity 82 after passing through the shared first air duct 58.

[0207] The first air path 111, the third air path 113, and the fourth air path 114 share the exhaust air cavity 83. It can be understood that when negative pressure is drawn for the cooking cavity 22, the exhaust air cavity 83 cannot be connected to the external environment and can only be connected to the cooking cavity 22. When steam is discharged for the cooking cavity 22, the exhaust air cavity 83 needs to be connected to the external environment so that the steam can be discharged to the environment. When cold air is blown for the cooking cavity 22, the exhaust air cavity 83 also needs to be connected to the external environment so that the cold air in the environment can enter the airflow generating device 14. Therefore, the third air path 113 and the fourth air path 114 also share the air duct 84 which is always connected to the environment. The exhaust air cavity 83 is connected to the air duct 84 through the first opening 41, and when the first opening 41 is opened, the exhaust air cavity 83 is connected to the air duct 84. When the first opening 41 is closed, the exhaust air cavity 83 is cut off from the air duct 84.

[0208] The movable partition assembly 36 in the device inner cavity 39 is used to define the exhaust air cavity 83 with a part of the device shell 38. In other words, the movable partition assembly 36 and the device shell 38 respectively provide a part of the cavity wall of the exhaust air cavity 83, and at least one of the movable partition assembly 36 and the device shell 38 is provided with a cavity space for forming the exhaust air cavity 83. For example, the movable partition assembly 36 is movable relative to the device shell 38 (i.e., the device inner cavity 39) between a first open position and a first closed position. When the movable partition assembly 36 is in the first open position, the movable partition assembly 36 is away from the part of the device shell 38 and a first opening 41 is formed between the movable partition assembly 36 and the part of the device shell 38 (see FIG. 3). When the movable partition assembly 36 is in the first closed position, the movable partition assembly 36 is close to the part of the device shell 38 and a second opening 42 is formed between the movable partition assembly 36 and the part of the device shell 38 (see FIG. 4). Figure 9), that is, the relative movement between different parts of the cavity wall of the exhaust cavity 83 causes the cavity wall to split, and the split opening is the first opening 41; when the moving baffle assembly 36 is in the first closed position, the moving baffle assembly 36 contacts the said part of the device housing 38, and the different parts of the cavity wall of the exhaust cavity 83 are reattached, and the split of the first opening 41 is closed.

[0209] Further, the cooking appliance 100 is configured to close the first opening 41 in the water absorption process and / or the heat preservation process, so that the exhaust cavity 83 is not in communication with the external environment, but only in communication with the cooking cavity 22; in the boiling maintenance process, the first opening 41 is opened, and the exhaust cavity 83 is in communication with the ventilation cavity 84, so that the exhaust cavity 83 is in communication with the environment. In other words, the cooking appliance 100 is configured to close the first opening 41 by the moving baffle assembly 36 in the water absorption process and / or the heat preservation process; open the first opening 41 by the moving baffle assembly 36 in the boiling maintenance process. Both the first gas path 111 and the fourth gas path 114 are located upstream of the airflow generating device 14 and are used to provide gas to the airflow generating device 14. When negative pressure needs to be extracted, it is ensured that the gas entering the airflow generating device 14 is air in the cooking cavity 22; when cold air needs to be blown, ambient cold air can enter the airflow generating device 14. Thus, the airflow is orderly directed to achieve the desired effect.

[0210] Further, the cooking appliance 100 is configured such that when the second gas path 112 is conducted, the first opening 41 is closed, and the fifth gas path 115 is blocked, so that the gas path for extracting negative pressure works normally; when the fifth gas path 115 is conducted, the first opening 41 is opened, so that the gas path for blowing cold air works normally. Therefore, the first opening 41 and the second opening 42 are opened and closed synchronously (or simultaneously). For example, the cooking appliance 100 is configured such that the moving baffle assembly 36 and the floating sealing assembly 37 can interact with each other (both are action components) to realize linkage. For example, when the moving baffle assembly 36 opens the first opening 41, the moving baffle assembly 36 causes the floating sealing assembly 37 to open the second opening 42. In other words, when the moving baffle assembly 36 is in the first open position, the moving baffle assembly 36 abuts the floating sealing assembly 37 to the second open position. For example, when the moving baffle assembly 36 closes the first opening 41, the moving baffle assembly 36 causes the floating sealing assembly 37 to close the second opening 42. For example, when the floating sealing assembly 37 closes the second opening 42, the floating sealing assembly 37 causes the moving baffle assembly 36 to close the first opening 41. Of course, the moving baffle assembly 36 and the floating sealing assembly 37 can also work under the control of the control device, and the synchronous action of the two can be realized by a software program.

[0211] When the first opening 41 is opened, the third air path 113 for discharging steam is also opened. Thus, discharging steam and blowing cold air for the cooking cavity 22 can be performed simultaneously. Preferably, the cooking appliance 100 is configured such that the first opening 41 is opened under the action of steam pressure in the cooking cavity 22, or the movable partition assembly 36 opens the first opening 41 under the action of steam pressure in the cooking cavity 22. When the movable partition assembly 36 and the floating sealing assembly 37 are linked, the floating sealing assembly 37 opens the second opening 42 under the action of steam pressure in the cooking cavity 22, or the second opening 42 is opened under the action of steam pressure in the cooking cavity 22. That is, in the process of moving the movable partition assembly 36 from the first closed position to the first open position under the action of steam pressure in the cooking cavity 22, the movable partition assembly 36 contacts the floating sealing assembly 37 in the second closed position, and then forces the floating sealing assembly 37 to move together with the movable partition assembly 36, so as to move the floating sealing assembly 37 to the second open position. Thus, the opening of the first opening 41 does not require the participation of electric control components, and the control is simple and cost-saving. Moreover, when the steam in the cooking cavity 22 can drive the movable partition assembly 36 to move, it indicates that a large amount of steam has been generated in the cooking cavity 22, for example, in the maintaining boiling process, at this time, the first opening 41 is opened, which can discharge steam and blow cold air, and meets the needs of preventing overflow in the maintaining boiling process.

[0212] In the present application, the force of the steam top opening the movable partition assembly 36 to open the first opening 41 is, for example, 0.1 N to 5 N, and preferably 0.2 N to 1 N.

[0213] It can be understood that the control device can determine the temperature in the cooking cavity 22 through the sensing data of the temperature sensor, so as to accurately determine whether to enter the maintaining boiling process, and control the air flow generating device 14 to work after determining to enter the maintaining boiling process. Those skilled in the art can adjust the control software and component parameters through experiments, so that the movable partition assembly 36 has opened the first opening 41 under the action of steam in the cooking cavity 22 before the control software confirms to enter the maintaining boiling process.

[0214] Furthermore, to simplify control, the cooking appliance 100 is configured such that the second open position is above the second closed position, and the floating seal assembly 37 moves from the second open position to the second closed position by its own weight. Furthermore, the cooking appliance 100 is configured such that the floating seal assembly 37 is located above the movable partition assembly 36, such that the movable partition assembly 36 is located above the first opening 41 (the floating seal assembly 37 and the first opening 41 are located on either side of the movable partition assembly 36 along the axial direction DA). Furthermore, the first open position is located above the first closed position. When the floating seal assembly 37 moves from the second open position to the second closed position by its own weight, its own weight also causes the movable partition assembly 36 to move from the first open position to the first closed position. That is, during the process of moving from the second open position to the second closed position by its own weight, the floating seal assembly 37 contacts the movable partition assembly 36 in the first open position, forcing the movable partition assembly 36 to move along with the floating seal assembly 37, thereby moving the movable partition assembly 36 to the first closed position.

[0215] Furthermore, in order to simplify control, the cooking appliance 100 is constructed so that the second one-way valve 35 opens the third opening 43 under the action of the air pressure in the switching chamber 82 (that is, the air pressure in the first vent pipe 58, that is, the air pressure at the airflow outlet 16, that is, the air pressure in the second air path 112). In other words, the second one-way valve 35 has an open position driven to open by the air pressure in the switching chamber 82. When the air pressure in the switching chamber 82 drops, the second one-way valve 35 closes (is in the closed position). The second one-way valve 35 includes, for example, an elastic component, which is deformed under the action of air pressure to open the third opening 43 and returns to its original shape by its own elasticity to close the third opening 43. Thus, the air path integration device 30 does not need to be connected to an electronic control component, the control is simple, the cost is saved, and the cooking appliance 100 is easy to assemble.

[0216] like Figure 7 As shown, the second one-way valve 35 is constructed as an elastic diaphragm covering the third opening 43. When airflow flows through the switching chamber 82, the airflow deforms the elastic diaphragm, for example, flipping it upward in the figure, exposing the third opening 43, thereby opening the second air path 112. When the airflow pressure is insufficient, the elastic diaphragm recovers due to its own elasticity, re-covering the third opening 43 and blocking the second air path 112.

[0217] It can be understood that the force that elastically deforms the second one-way valve 35 needs to be less than the gravity of the floating sealing assembly 37, so that the air flow blown by the air flow generating device 14 is less resistant at the second one-way valve 35 in the water absorption and / or heat preservation process, so that the air flow tends to flow to the third opening 43. In other words, when the air pressure in the switching cavity 82 is less than the gravity corresponding to the preset weight of the floating sealing assembly 37, the floating sealing assembly 37 is located in the second closed position. Those skilled in the art can determine the power of the air flow generating device 14, the gravity of the floating sealing assembly 37 and the elastic deformation capacity of the second one-way valve 35 through experiments, so that the air flow blown by the air flow generating device 14 can deform the second one-way valve 35, but cannot lift the floating sealing assembly 37, realize the conduction of the second air path 112 and the blockage of the fifth air path 115 when the negative pressure is drawn.

[0218] When the floating sealing assembly 37 opens the second opening 42, the second opening 42 is a passage. The second one-way valve 35 closes the third opening 43, so that the resistance at the third opening 43 is greater than the resistance at the second opening 42. Therefore, when the second opening 42 is opened, the air flow in the switching cavity 82 selects the path with small resistance and flows out of the switching cavity 82 from the second opening 42, but not from the third opening 43. In other words, when the second opening 42 is opened, the second opening 42 makes the switching cavity 82 not a closed cavity, and cannot maintain a high air pressure in the switching cavity 82, so that the air pressure cannot deform the second one-way valve 35.

[0219] The first opening 41, the second opening 42 and the third opening 43 are openings on the respective air paths, and can also be regarded as a small air flow passage.

[0220] Due to the position of the cross section, Figure 7 the cross-sectional view fails to show the complete fifth air path 115, Figure 8 the cross-sectional view fails to show the complete second air path 112.

[0221] The specific exemplary structure of the air path integration device 30 will be introduced below.

[0222] As Figures 10 to 26 shown, the air path integration device 30 has a substantially radial symmetry shape, and its axis PA extends in the upward and downward direction, that is, the axial direction DA of the air path integration device 30 is the upward and downward direction. In the projection along the axial direction DA, the device housing 38 is circular with the axis PA as the center.

[0223] The air path integration device 30 comprises a device upper cover 31, an upper partition 32, a lower partition 33, and a device lower cover 34. The device upper cover 31 and the device lower cover 34 form parts of a device housing 38 respectively, and together enclose a device inner cavity 39. The device lower cover 34 is located below the device upper cover 31, and is configured to face the cooking cavity 22 and contact the bottom wall of the accommodating groove 11A. The exhaust pipe 56, the third air pipe 57, the first air pipe 58, and the second air pipe 59 all extend from the lower surface of the device lower cover 34.

[0224] The device upper cover 31 is configured as a top hat, for example, and comprises a cover top wall 31A, a cover side wall 31B, and a cover annular wall 31C. The cover side wall 31B is generally a cylinder extending in the axial direction DA. The cover top wall 31A is connected to the upper end of the cover side wall 31B, forms a hat top, and constitutes the top wall of the air path integration device 30. The inner peripheral edge of the cover annular wall 31C is connected to the outer peripheral surface of the lower end of the cover side wall 31B, and extends radially outward from the outer periphery of the cover side wall 31B, forming a hat brim. The device lower cover 34 is generally bowl-shaped, and comprises a lower cover bottom wall 34A and a lower cover side wall 34B. The axial direction of the lower cover side wall 34B is also the axial direction DA. The lower cover bottom wall 34A is connected to the lower end of the lower cover side wall 34B, and constitutes the bottom wall of the air path integration device 30, configured to contact the groove bottom of the accommodating groove 11A. The lower cover bottom wall 34A extends along a plane, for example, thereby reducing the processing difficulty. The outer peripheral edge of the cover annular wall 31C is located above the periphery of the opening at the upper end of the lower cover side wall 34B.

[0225] The upper partition 32 and the lower partition 33 are both arranged in the device inner cavity 39, to divide the device inner cavity 39 into multiple cavities.

[0226] The lower partition 33 is configured as a disc, for example, and its outer peripheral edge is connected to the inner peripheral surface of the lower cover side wall 34B. The lower partition 33 is connected to the device lower cover 34, for example, by a third rotary buckle 94C (see Figure 11 and Figure 14 ). The upper partition 32 is located above the lower partition 33.

[0227] The upper end of the upper partition 32 abuts against the upper cover top wall 31A, and the lower end abuts against the lower partition 33. The upper partition 32 is configured as a double-layer structure, and both the upper layer and the lower layer are generally circular grooves with the axial direction DA as the axis. The upper layer groove and the lower layer groove share a groove bottom, and thus the opening directions of the two grooves are opposite. Specifically, the upper partition 32 includes a partition plate 32A, an upper groove side wall 32B, and a lower groove side wall 32C. The partition plate 32A extends, for example, in the horizontal direction, and forms the groove bottom of the upper layer groove and the lower layer groove. The upper groove side wall 32B is, for example, a cylinder extending in the axial direction DA, and is connected to the upper surface of the partition plate 32A, so that the upper layer groove opens upward. The upper end of the upper groove side wall 32B abuts against the upper cover top wall 31A. The lower groove side wall 32C is, for example, also a cylinder extending in the axial direction DA, and is connected to the lower surface of the partition plate 32A, so that the lower layer groove opens downward. The lower end of the lower groove side wall 32C abuts against the lower partition 33. The lower groove side wall 32C and the lower partition 33 are connected, for example, by the second rotation buckle 94B (see Figure 14 ).

[0228] The radial dimension of the upper groove side wall 32B is smaller than the radial dimension of the lower groove side wall 32C. The radial dimension of the upper groove side wall 32B is smaller than the radial dimension of the partition plate 32A. The radial dimension of the lower groove side wall 32C is the same as the radial dimension of the partition plate 32A. The upper groove side wall 32B, the lower groove side wall 32C, and the partition plate 32A are connected to the center, so that the partition plate 32A as a whole forms the groove bottom of the lower layer groove, and the middle part of the partition plate 32A forms the groove bottom of the upper layer groove. That is, the groove bottom of the lower layer groove includes the groove bottom of the upper layer groove, and the groove bottom of the upper layer groove is the middle part of the groove bottom of the lower layer groove.

[0229] Referring to Figure 7 , the opening of the upper layer groove of the upper partition 32 is covered by the upper cover top wall 31A, and the space of the upper layer groove forms the air blowing cavity 81. That is, the upper cover top wall 31A, the partition plate 32A, and the upper groove side wall 32B enclose the air blowing cavity 81. Among them, the upper cover top wall 31A forms the top wall of the air blowing cavity 81, the partition plate 32A forms the bottom wall of the air blowing cavity 81, and the upper groove side wall 32B forms the side wall of the air blowing cavity 81. The air blowing cavity 81 is generally cylindrical in shape.

[0230] The opening of the lower layer groove of the upper partition 32 is covered by the lower partition 33, and the space of the lower layer groove forms the switching cavity 82. That is, the lower partition 33, the partition plate 32A, and the lower groove side wall 32C enclose the switching cavity 82. Among them, the partition plate 32A forms the top wall of the switching cavity 82, the lower partition 33 forms the bottom wall of the switching cavity 82, and the lower groove side wall 32C forms the side wall of the switching cavity 82. The switching cavity 82 is generally cylindrical in shape.

[0231] The upper lid side wall 31B is located outside the upper partition 32. The upper portion of the upper lid side wall 31B is located above the partition 32A. The lower portion of the upper lid side wall 31B is located below the partition 32A and outside the lower tank side wall 32C. The lower portion of the upper lid side wall 31B is connected to the lower tank side wall 32C, for example, by a third rotational snap 94C (see FIG. 9B). Figure 11 and Figure 14 ). Due to the upper tank of the upper partition 32 being thinner than the lower tank, there is an annular space between the upper tank side wall 32B and the upper lid side wall 31B, which forms the exhaust cavity 85. That is, the exhaust cavity 85 is substantially enclosed by the outer portion of the upper lid top wall 31A (the portion outside the air blowing cavity 81), the outer portion of the partition 32A (the portion outside the air blowing cavity 81), the upper tank side wall 32B and the upper portion of the upper lid side wall 31B. Among them, the outer portion of the upper lid top wall 31A forms the top wall of the exhaust cavity 85, the outer portion of the partition 32A forms the bottom wall of the exhaust cavity 85, the upper tank side wall 32B forms the outer side wall of the exhaust cavity 85, and the upper lid side wall 31B forms the inner side wall of the exhaust cavity 85.

[0232] It can be understood that the bottom wall of the upper tank of the upper partition 32, that is, the middle portion of the partition 32A, is a second common cavity wall 52 shared by the air blowing cavity 81 and the switching cavity 82. The second opening 42 is provided on the second common cavity wall 52. The outer portion of the partition 32A is a first common cavity wall 51 shared by the exhaust cavity 85 and the switching cavity 82. The third opening 43 is provided on the first common cavity wall 51. In other words, the partition 32A includes the second common cavity wall 52 and the first common cavity wall 51 connected in the radial direction, and the first common cavity wall 51 is located outside the second common cavity wall 52. The upper tank side wall 32B is connected to the boundary between the first common cavity wall 51 and the second common cavity wall 52. Since the first common cavity wall 51 is annular, multiple third openings 43 and second one-way valves 35 can be provided.

[0233] The space between the lower partition 33 and the device lower cover 34 forms the exhaust cavity 83 and the ventilation cavity 84. Specifically, referring to Figure 15 and Figure 16 , the lower cover bottom wall 34A is provided with an annular wall 83B extending in the axial direction DA, the annular wall 83B is located in the device inner cavity 39, the inner side space of the annular wall 83B is used to form at least part of the exhaust cavity 83, and the outer side space of the annular wall 83B is used to form the ventilation cavity 84. The middle portion of the lower cover bottom wall 34A forms the exhaust cavity bottom wall 83A of the exhaust cavity 83, and the annular wall 83B forms at least part of the exhaust cavity side wall of the exhaust cavity 83. The outer portion of the lower cover bottom wall 34A forms the bottom wall of the ventilation cavity 84, the lower cover side wall 34B forms the side wall of the ventilation cavity 84, and the lower partition 33 forms the top wall of the ventilation cavity 84.

[0234] The annular wall 83B has two ends arranged opposite along the axial direction DA, one of which is connected to the bottom wall 83A of the exhaust cavity. The annular wall 83B is connected to the junction between the intermediate portion and the peripheral portion of the bottom wall 34A of the lower cover. The lower partition 33 is located above the annular wall 83B. The lower partition 33 and the bottom wall 34A of the lower cover are respectively located on both sides of the annular wall 83B along the axial direction DA. The movable partition assembly 36 is arranged on the lower partition 33, and the movable partition assembly 36 and the bottom wall 34A of the lower cover are respectively located on both sides of the annular wall 83B along the axial direction DA. The movable partition assembly 36 is configured to be movable relative to the annular wall 83B along the axial direction DA between a first open position and a first closed position. When the movable partition assembly 36 is located at the first open position, the movable partition assembly 36 and the end of the annular wall 83B not connected to the bottom wall 83A of the exhaust cavity form a first opening 41. Thus, the ventilation cavity 84 is located at the periphery of the annular wall 83B and surrounds the first opening 41. When the movable partition assembly 36 is located at the first closed position, the movable partition assembly 36 contacts the end of the annular wall 83B not connected to the bottom wall 83A of the exhaust cavity, forming at least a top wall of the exhaust cavity 83. The first opening 41 can be understood as being formed in the side wall of the exhaust cavity 83, and when the first opening 41 is opened, the side wall of the exhaust cavity 83 is broken along the circumference. The exhaust cavity 83 can also be understood as a section of airflow passage, and the first opening 41 can be understood as an opening of the section of airflow passage.

[0235] The cavity wall of the exhaust cavity 83 is provided with an exhaust port 83C connected to the exhaust pipe 56, so that the exhaust cavity 83 communicates with the cooking cavity 22. The cavity wall of the exhaust cavity 83 is provided with an exhaust port 83D connected to the third ventilation pipe 57, so that the exhaust cavity 83 communicates with the airflow inlet 15. The exhaust port 83C and the exhaust port 83D are preferably arranged on the same cavity wall of the exhaust cavity 83, for example, both are arranged on the exhaust cavity bottom wall 83A. Thus, the bottom wall 34A of the lower cover, the third ventilation pipe 57 and the exhaust pipe 56 can be integrally formed.

[0236] The housing opening 55 is arranged on the device upper cover 31. For example, see Figure 12 The housing opening 55 includes a first housing opening 55A arranged on the annular wall 31C. See Figure 24 The lower partition 33 is provided with a ventilation hole 33A near the edge. See Figure 7 The ventilation hole 33A and the first housing opening 55A are arranged along the axial direction DA. The ventilation cavity 84 communicates to the first housing opening 55A through the ventilation hole 33A, thereby communicating with the environment. See Figure 10 and Figure 11 The housing opening 55 further includes a second housing opening 55B arranged on the upper portion of the upper cover side wall 31B, and the second housing opening 55B is used to communicate the exhaust cavity 85 with the environment. See Figure 1When the gas path integration device 30 is mounted to the cover 10, the device upper cover 31 protrudes from the upper surface of the face cover 13, for example, so that the first housing aperture 55A and the second housing aperture 55B are in communication with the environment.

[0237] The first vent tube 58 is provided on the lower partition 33. The first vent tube 58 extends in the axial direction DA in the device inner cavity 39, passes through the vent cavity 84, and exits from the through hole 34C on the lower cover bottom wall 34A. The first vent tube 58 can be integrally formed with the lower partition 33. The second vent tube 59 is provided on the middle portion of the partition 32A (see Figure 8 ), that is, the bottom wall of the blowing cavity 81. The second vent tube extends in the axial direction DA in the device inner cavity 39, passes through the switching cavity 82 and the vent cavity 84, and exits from the through hole 34D on the lower cover bottom wall 34A. The lower partition 33 is provided with a through hole 33D (see Figure 24 ) for the second vent tube 59 to pass through. Both the first vent tube 58 and the second vent tube 59 are located outside the annular wall 83B, so as not to affect the gas path function of the pumping and exhaust cavity 83.

[0238] As mentioned above, the upper partition 32 is connected with the lower partition 33 by the second rotating buckle 94B, that is, the two need to be relatively rotated, and the second vent tube 59 needs to pass through the lower partition 33, so the second vent tube 59 cannot be integrally formed with the upper partition 32. The second vent tube 59 is detachably connected with the partition 32A. As shown in Figure 8 , the partition 32A is provided with a partition connecting portion 32D for detachable connection with the second vent tube 59. The partition connecting portion 32D is configured as an internally threaded tube (or hole) extending in the axial direction DA, for example, and the outer periphery of the second vent tube 59 is provided with an external thread, which is screwed with the partition connecting portion 32D. When the upper partition 32 and the lower partition 33 are buckled in place, the partition connecting portion 32D is aligned with the through hole 33D of the lower partition 33.

[0239] When assembling the gas path integration device 30, first, the second one-way valve 35 and the floating sealing assembly 37 are mounted to the partition 32A, and the moving partition assembly 36 is mounted to the lower partition 33. Then, the upper partition 32 and the lower partition 33 are screwed and buckled. Next, the second vent tube 59 is mounted to the partition connecting portion 32D. Finally, the device lower cover 34 is screwed and buckled with the lower partition 33, and the device upper cover 31 is screwed and buckled with the upper partition 32.

[0240] In order not to affect the functions of the various cavities in the device inner cavity 39, a plurality of sealing members are also provided in the device inner cavity. In order to ensure that the pumping and exhaust cavity 83 and the vent cavity 84 are not in communication in the pumping negative pressure mode, a first sealing member 91A is provided between the moving partition assembly 36 and the device housing 38. The first sealing member 91A is a sealing gasket, for example, which straddles the end of the annular wall 83B (see Figure 9). A second seal 91B is also provided between the lower groove side wall 32C of the upper partition 32 and the edge of the lower partition 33 for sealing the switching chamber 82. Meanwhile, the upper cover side wall 31B is close to the lower groove side wall 32C, so that the second seal 91B is also connected between the upper cover side wall 31B and the edge of the lower partition 33. Thus, the second seal 91B is used for sealing between the exhaust chamber 85, the switching chamber 82 and the ventilation chamber 84. A third seal 91C is provided between the upper groove side wall 32B of the upper partition 32 and the upper cover top wall 31A for sealing between the blowing chamber 81 and the exhaust chamber 85. The third seal 91C is, for example, a sealing diagram, such as a gasket, which is, for example, straddled on the end of the upper groove side wall 32B (see Figure 8 In order not to affect the gas path function of the switching chamber 82, a fourth seal 91D is provided at the through hole 33D of the lower partition 33 for sealing contact between the second ventilation tube 59 and the through hole 33D, so that the switching chamber 82 is not communicated with the ventilation chamber 84. A fifth seal 91E is provided in the through hole 32E of the partition connecting portion 32D, so that the second ventilation tube 59 is sealingly connected with the partition connecting portion 32D for sealing between the blowing chamber 81 and the switching chamber 82.

[0241] The ventilation chamber 84 is used to communicate with the environment, so the through holes 34C and 34D do not need to be sealed. It can be understood that when the device lower cover 34 is screwed and engaged with the lower partition 33, the first ventilation tube 58 has been located in the through hole 34C, and the second ventilation tube 59 has been located in the through hole 34D, and the through holes 34C and 34D reserve enough space for the corresponding gas tubes to move therein. As shown in Figure 13 The through holes 34C and 34D are both long holes, and when the device lower cover 34 just contacts the lower partition 33 in the axial direction DA, the two gas tubes are located at one end of the corresponding long hole (such as the black marked position in the figure), and after the device lower cover 34 is screwed and engaged with the lower partition 33 (such as the red arrow direction in the figure), the two gas tubes are located at the other end of the corresponding long hole (such as the blue marked position in the figure).

[0242] As shown in Figure 14 and Figures 18 to 20 The second one-way valve 35, the floating sealing assembly 37, the upper partition 32 and the third seal 91C can be pre-assembled to form an upper partition pre-assembled assembly 53. As shown in Figure 14 and Figures 21 to 23 The moving partition assembly 36 and the lower partition 33 can be pre-assembled to form a lower partition pre-assembled assembly 54. The upper partition pre-assembled assembly 53 and the lower partition pre-assembled assembly 54 are connected through the second rotating buckle 94B. After the upper partition pre-assembled assembly 53 and the lower partition pre-assembled assembly 54 are connected, the upper cover 31 is connected with the upper partition pre-assembled assembly 53 through the first rotating buckle 94A, and the lower cover 34 is connected with the lower partition pre-assembled assembly 54 through the third rotating buckle 94C.

[0243] The structure and installation of the mobile partition assembly 36 are described below.

[0244] Referring to Figure 24 , the lower partition 33 is provided with an installation site 33B for installing the mobile partition assembly 36, and the installation site 33B includes an installation through hole 33C. The mobile partition assembly 36 is arranged through the installation through hole 33C. The installation through hole 33C is, for example, a circular hole. The axial direction of the first opening 41 is parallel to the axial direction of the installation through hole 33C, and both are the axial direction DA. As shown in Figure 9 , the first opening 41 and the installation through hole 33C are spaced apart along the axial direction DA. The mobile partition assembly 36 is connected to the installation through hole 33C and is movable along the axial direction DA relative to the installation through hole 33C between the first open position and the first closed position.

[0245] As shown in Figures 7 to 9 and Figures 27 to 29 , the mobile partition assembly 36 includes a telescopic member 61, a mobile partition 64, and a pressing diagram 65.

[0246] The telescopic member 61 is connected to the mouth of the installation through hole 33C and is telescopic in the axial direction DA of the installation through hole 33C between the first open position and the first closed position. The mobile partition 64 defines an exhaust cavity 83 with part of the device housing 38. The mobile partition 64 is arranged through the installation through hole 33C and is connected to the telescopic member 61 to move synchronously with the telescopic member 61 between the first open position and the first closed position. Thus, the opening and closing of the first opening 41 is realized by the movement of the mobile partition 64.

[0247] The telescopic member 61 has, for example, a radial symmetry structure, including a telescopic member outer peripheral part 61A and a telescopic member intermediate part 61B, and the telescopic member outer peripheral part 61A is connected to the telescopic member intermediate part 61B at the outer periphery of the telescopic member intermediate part 61B. The telescopic member outer peripheral part 61A is in the form of a circular ring and is used to connect to the mouth of the installation through hole 33C. The telescopic member intermediate part 61B is configured to extend through the installation through hole 33C and is movable in the axial direction DA relative to the telescopic member outer peripheral part 61A between the first open position and the first closed position in the installation through hole 33C.

[0248] The mobile partition 64 is connected to the side of the telescopic member intermediate part 61B facing the first opening 41 and moves synchronously with the telescopic member intermediate part 61B between the first open position and the first closed position. In the first embodiment, the mobile partition 64 moves from the first closed position (see Figure 25 ) to the first open position (see Figure 26The middle part 61B of the telescopic member is moved from the first open position to the first closed position under the action of the floating seal assembly 37, thereby moving the movable partition 64 from the first open position to the first closed position.

[0249] The main body of the pressing diagram 65 is a pressing ring 67, which is configured as a circular ring and matches the shape of the outer peripheral part 61A of the telescopic member, and is used to contact the outer peripheral part 61A of the telescopic member so that the outer peripheral part 61A of the telescopic member is clamped between the pressing ring 67 and the mounting site 33B, that is, the outer peripheral part 61A of the telescopic member is pressed around the mouth of the mounting through hole 33C. Thus, the position of the outer peripheral part 61A of the telescopic member is fixed, that is, the relative position of the outer peripheral part 61A of the telescopic member to the first opening 41 is fixed. The outer peripheral part 61A of the telescopic member can move in the axial direction DA in the central through hole of the pressing ring 67. The pressing diagram 65 further includes a pressing diagram connecting part 66, which is used to connect the mounting site 33B, for example, detachably connect the mounting site 33B. For example, the pressing diagram connecting part 66 is arranged on the radially outer side of the inner peripheral surface of the pressing ring 67 and is connected to the mounting site 33B by a bolt. The telescopic member 61 is connected to the side of the mounting through hole 33C away from the first opening 41, thereby facilitating the installation of the pressing diagram 65.

[0250] The telescopic member 61 is preferably made of an elastic material. It can be understood that, since the outer peripheral part 61A of the telescopic member is connected around the mouth of the mounting through hole 33C, the telescopic member 61 can seal the mounting through hole 33C, thereby isolating the switching cavity 82 from the ventilation cavity 84 and isolating the switching cavity 82 from the exhaust cavity 83. The middle part 61B of the telescopic member includes a pleated structure 61C. The pleated structure 61C is configured to extend in the radial direction DR and is concave-convex in the axial direction DA. Due to the use of an elastic material, the pleated structure 61C can be stretched and reset. When the pleated structure 61C is stretched, the middle part 61B of the telescopic member moves away from the outer peripheral part 61A of the telescopic member in the axial direction DA, thereby moving the movable partition 64 away from the first opening 41 in the axial direction DA, so as to open the first opening 41. When the pleated structure 61C is reset, the middle part 61B of the telescopic member moves toward the outer peripheral part 61A of the telescopic member in the axial direction DA, thereby moving the movable partition 64 toward the first opening 41 in the axial direction DA, so as to close the first opening 41.

[0251] The movable partition 64 can include a partition connecting portion 64B and a partition flange plate 64A. The partition connecting portion 64B extends in the axial direction DA, and an end of the partition connecting portion 64B distal from the first opening 41 is connected to the side of the telescopic member intermediate portion 61B facing the first opening 41. The partition flange plate 64A is provided on the outer circumferential side of the partition connecting portion 64B, and is configured to contact the device housing 38, i.e., to open and close the first opening 41. The outer diameter of the partition flange plate 64A is not less than the diameter of the first opening 41. The partition connecting portion 64B extends through the mounting through-hole 33C, and is movable in the axial direction DA relative to the mounting through-hole 33C between the first open position and the first closed position in the mounting through-hole 33C.

[0252] The partition connecting portion 64B can have a small radial dimension to save material. Correspondingly, the mounting through-hole 33C, the telescopic member 61, and the compression diagram 65 can all have small dimensions. The radial dimension of the partition flange plate 64A can be greater than the diameter of the mounting through-hole 33C, so that the partition flange plate 64A is always located on the side of the mounting through-hole 33C facing the first opening 41, i.e., the partition flange plate 64A is always located in the air passage cavity 84. The partition flange plate 64A is connected to the end of the partition connecting portion 64B in the axial direction DA, so that the axial dimension of the partition connecting portion 64B can be reduced.

[0253] Preferably, the telescopic member intermediate portion 61B is detachably connected to the movable partition 64. The movable partition 64 (in particular, the partition connecting portion 64B) is provided with a partition flange 64H, and the telescopic member intermediate portion 61B is tightly fitted with the partition flange 64H. For example, the outer circumferential surface of the movable partition 64 is configured with a radially outward annular partition flange 64H extending in the circumferential direction, and the inner circumferential surface of the side of the telescopic member intermediate portion 61B facing the first opening 41 is configured with a second groove 61H extending in the circumferential direction, the groove opening and groove bottom of the second groove 61H being opposite in the radial direction DR, and configured to accommodate the annular flange 64H. The movable partition 64 is made of a hard material (plastic, metal, etc.), and the partition flange 64H can be tightly fitted with the partition flange 64H by using the elasticity of the telescopic member 61. For example, the inner circumferential surface of the side of the telescopic member intermediate portion 61B facing the first opening 41 is configured with a radially inward annular protrusion 61E extending in the circumferential direction, and the outer circumferential surface of the partition flange 64H is configured with a first groove 64E extending in the circumferential direction, the groove opening and groove bottom of the first groove 64E being opposite in the radial direction DR, and configured to accommodate the annular protrusion 61E. The movable partition 64 can press and deform the telescopic member 61 by using the elasticity of the telescopic member 61, so that the annular protrusion 61E can enter the first groove 64E.

[0254] Preferably, the partition flange plate 64A is provided with a reinforcing rib 69 for reinforcing the strength of the partition flange plate 64A. The reinforcing rib 69 protrudes from the surface of the partition flange plate 64A. Preferably, the reinforcing rib 69 is arranged on the side of the partition flange plate 64A facing the first opening 41, so that the size of the partition connecting portion 64B in the axial direction DA can be reduced. The reinforcing rib 69 is configured, for example, as an annular rib, and can be located inside the annular wall 83B.

[0255] Further, the mounting site 33B is provided with at least one guide post 48 extending in the axial direction DA towards the first opening 41, for example, the side of the lower partition 33 facing the device lower cover 34 is provided with at least one guide post 48 extending in the axial direction DA, and the partition flange plate 64A of the moving partition 64 is provided with at least one guide hole 64D for accommodating the guide post 48. The guide post 48 is arranged correspondingly with the guide hole 64D, and the guide post 48 is movable in the axial direction DA in the guide hole 64D. Thus, the guide post 48 and the guide hole 64D enable the moving partition 64 to be stably moved in the axial direction DA. A plurality of guide posts 48 and guide holes 64D can be uniformly distributed in the circumferential direction. As shown in Figure 24 As shown in Figure 25 and Figure 26 As shown in

[0256] As shown in Figure 27 The partition flange plate 64A is also provided with a through hole 64F for the first air vent pipe 58 to pass through and a through hole 64G for the second air vent pipe 59 to pass through. The first air vent pipe 58 and the second air vent pipe 59 also have a guiding effect on the movement of the moving partition 64. From Figure 24 It can be seen that the guide post 48, the first air vent pipe 58 and the second air vent pipe 59 are generally distributed on the same circle with the axis PA as the center.

[0257] As mentioned above, the steam exhaust third air path 113 and the cold air blowing fourth air path 114 of the cooking appliance 100 are simultaneously conducted, that is, the steam exhaust and the cold air blowing are simultaneously performed, and the two air paths share the exhaust air cavity 83 and the air vent cavity 84. In the exhaust air cavity 83 and the air vent cavity 84, the airflow direction of the third air path 113 and the fourth air path 114 is opposite and the airflow temperature is different.

[0258] In order to make the hot steam that needs to move along the third air path 113 as little as possible to enter the fourth air path 114, as Figure 15 and Figure 16As shown, the bottom wall 83A of the exhaust chamber is further provided with a first barrier 45, located between the exhaust port 83D and the exhaust port 83C. The first barrier 45 protrudes from the bottom wall 83A toward the interior of the exhaust chamber 83, somewhat blocking air flow between the exhaust port 83D and the exhaust port 83C. In other words, the first barrier 45 divides the exhaust chamber 83 into a steam exhaust side 83E and a cold air connection side 83F. As will be appreciated, the exhaust port 83C is located on the steam exhaust side 83E, while the exhaust port 83D is located on the cold air connection side 83F.

[0259] Furthermore, a second barrier 49 is provided in the ventilation cavity 84. The lower side of the second barrier 49 is connected to the lower cover bottom wall 34A and the lower cover side wall 34B, and its upper edge conforms to the bottom shape of the lower divider 33, thereby roughly dividing the ventilation cavity 84 into two. Preferably, the second barrier 49 is located in the extension direction of the first barrier 45, that is, on the extension line of the first barrier 45, and together with the first barrier 45, it serves to separate the cold and hot air flows. Due to the radial arrangement of the exhaust cavity 83 and the ventilation cavity 84, two second barriers 49 are provided in the ventilation cavity 84, corresponding to the two side edges 46 of the first barrier 45 and extending on the extension line of the first barrier 45.

[0260] like Figure 7 As shown, after hot steam enters the exhaust chamber 83 from the exhaust pipe 56 along the blue third air path 113, due to the blocking effect of the first blocking member 45, most of the steam enters the ventilation chamber 84 from the side of the first blocking member 45 facing the exhaust port 83C, and is then discharged into the environment from the side of the second blocking member 49 facing the exhaust port 83C. The reinforcing rib 69 extends toward the exhaust chamber 83 and is located inside the annular wall 83B. The reinforcing rib 69 and the first blocking member 45 are staggered in the axial direction DA, forming a double barrier with the first blocking member 45 to a certain extent, further hindering the movement of hot steam toward the exhaust port 83D. Preferably, the reinforcing rib 69 is located between the first blocking member 45 and the annular wall 83B in the radial direction DR. The parts of the exhaust chamber 83 and the ventilation chamber 84 located on the side of the two blocking members facing the exhaust port 83C are occupied by hot steam, while the ambient cold air tends to enter the ventilation chamber 84 from the side of the second blocking member 49 facing the exhaust port 83D, and then enter the exhaust chamber 83 from the side of the first blocking member 45 facing the exhaust port 83D.

[0261] like Figures 15 to 17As shown, preferably, the width direction spaced two side edges 46 of the first barrier 45 are connected to the annular wall 83B to more fully block the suction port 83D and the exhaust port 83C. Preferably, the width direction middle portion 47 of the first barrier 45 protrudes from the annular wall 83B toward the moving baffle assembly 36 in the axial direction DA to more fully block the suction port 83D and the exhaust port 83C. The baffle connecting portion 64B of the moving baffle assembly 36 includes a receiving groove 64C (see Figure 28 ) having an opening facing the first opening 41, and the receiving groove 64C is used to receive the middle portion 47 of the first barrier 45. In this way, the middle portion 47 of the first barrier 45 can have a certain height, which is conducive to isolating the hot steam and the ambient cold air. In order to adapt to the shape of the mounting through hole 33C, the baffle connecting portion 64B is generally cylindrical in shape, so that the receiving groove 64C is a circular groove. In order to prolong the effective length of the middle portion 47 of the first barrier 45, the middle portion 47 of the first barrier 45 includes an arc-shaped plate, and the axis of the arc of the arc-shaped plate generally coincides with the axis of the annular wall 83B. The arc of the arc-shaped plate is, for example, 90 degrees to 180 degrees. The first barrier 45, the annular wall 83B, the exhaust pipe 56, the third air pipe 57, and the device lower cover 34 can be integrally formed.

[0262] It can be understood that the receiving groove 64C is also part of the cavity space of the suction and exhaust cavity 83.

[0263] Preferably, the axis of the exhaust port 83C generally coincides with the axis of the annular wall 83B, so that the steam can uniformly act on the moving baffle 64. Preferably, the caliber of the exhaust port 83C is larger than the caliber of the suction port 83D, which is conducive to the steam quickly entering the suction and exhaust cavity 83 and occupying the third air path 113.

[0264] When the mobile partition assembly 36 is in the first open position, the air path integration device 30 is in a blowing mode of blowing air into the cooking cavity 22, the outer shell opening 55, the air passage cavity 84, the first opening 41, the air exhaust cavity 83 (specifically, the cold air communication side 83F), the third air passage tube 57, the airflow generating device 14, the first air passage tube 58, the combined cavity 86, and the second air passage tube 59 can form an internal blowing air path (an air path of blowing cold air into the cooking space 22) in communication. Among them, the outer shell opening 55, the air passage cavity 84, the first opening 41, and the cold air communication side 83F form a cold air inlet air path in communication. The air in the external environment enters the airflow generating device 14 through the air exhaust cavity 84, the tubular connecting portion 57, and the airflow inlet 15. At the same time, the air path integration device 30 is also in an exhaust mode, and the exhaust pipe 56, the steam exhaust side 83E, the first opening 41, the air passage cavity 84, and the outer shell opening 55 form a steam exhaust air path. When the mobile partition assembly 36 is in the first closed position, the air path integration device 30 is in a suction mode of sucking air into the cooking cavity 22, and the air exhaust cavity 83 is separated from the air passage cavity 84. The exhaust pipe 56, the air exhaust cavity 83, the third air passage tube 57, the airflow generating device 14, the first air passage tube 58, and the combined cavity 86 (specifically, the switching cavity 82) can form an external suction air path (an air path of sucking negative pressure into the cooking space 22) in communication. The gas in the cooking cavity 22 enters the airflow generating device 14 through the exhaust pipe 56, the air exhaust cavity 83, the tubular connecting portion 57, and the airflow inlet 15.

[0265] In the present application, preferably, the axes of the device upper cover 31, the upper partition 32, the lower partition 33, the device lower cover 34, the mounting through hole 33C, the mobile partition assembly 36, and the annular wall 83B are all the axis PA of the air path integration device 30.

[0266] In some embodiments not shown in the present application, the lower cover bottom wall 34A does not extend along a plane, wherein the middle portion and the outer peripheral portion are not in the same plane, for example, wherein the middle portion is recessed downward relative to the outer peripheral portion, for example, the annular wall 83B constitutes part of the outer surface of the device housing 38.

[0267] In some embodiments not shown in the present application, the cavity space of the air exhaust cavity 83 is completely provided by the mobile partition assembly 36. For example, the lower cover 34 does not provide the annular wall 83B, the reinforcing ribs 69 of the mobile partition 64 of the mobile partition assembly 36 form the side wall of the air exhaust cavity 83, the accommodation groove 64C forms the cavity space of the air exhaust cavity 83, and the lower cover bottom wall 34A forms the bottom wall of the air exhaust cavity 83. The first sealing member 91A is sleeved on the reinforcing rib 69.

[0268] The structure and installation method of the floating sealing assembly 37 are described below.

[0269] As described above, the floating sealing assembly 37 extends through the second opening 42. As shown in FIG. 4, the floating sealing assembly 37 is arranged on the second opening 42 of the device housing 38.Figures 30 to 32 As shown, the floating seal assembly 37 includes a floating member 71 and a blocking member 75. The floating member 71 is configured to extend through the second opening 42 and is movable in the axial direction DA in the second opening 42. The floating member 71 includes a floating member first end portion 71A and a floating member second end portion 71B oppositely arranged in the axial direction DA. The floating member first end portion 71A extends out of the second opening 42. There is a gap between at least a portion of the floating member 71 and the inner circumferential surface of the second opening 42. The blocking member 75 is connected to the floating member first end portion 71A and is configured to block the second opening 42 at one end of the second opening 42. For example, the radial dimension of the blocking member 75 is greater than the radial dimension of the second opening 42, so that the blocking member 75 closes the second opening 42 by covering the second opening 42. At the same time, the blocking member 75 also allows the floating member 71 to have a limit position when moving toward the side of the floating member second end portion 71B.

[0270] The blocking member 75 is preferably made of an elastic material. The blocking member 75 can also be understood as a sealing member. The blocking member 75 is, for example, configured as an elastic diaphragm that covers the second opening 42 at one end (one side) of the second opening 42. The elastic diaphragm is provided with a diaphragm mounting hole 76 through which the floating member first end portion 71A passes, so that the elastic diaphragm is sleeved on the outer periphery of the floating member first end portion 71A. For example, the outer periphery of the floating member first end portion 71A is provided with a first mounting groove 71E extending in the circumferential direction, which is configured to accommodate the portion of the elastic diaphragm located around the mouth of the diaphragm mounting hole 76, i.e., to clamp the elastic diaphragm in the first mounting groove 71E.

[0271] The floating member second end portion 71B also extends out of the second opening. The floating seal assembly 37 further includes a limiting member 77 connected to the floating member second end portion 71B, and the radial dimension of the limiting member 77 is greater than the radial dimension of the second opening 42. Thus, the limiting member 77 allows the floating member 71 to have a limit position when moving toward the side of the floating member first end portion 71A. The limiting member 77 is, for example, sleeved on the outer periphery of the floating member second end portion 71B. For example, the limiting member 77 can be configured as a limiting ring made of an elastic material. The outer periphery of the floating member second end portion 71B is, for example, provided with a second mounting groove 71F extending in the circumferential direction, which is configured to accommodate the limiting member 77, i.e., to clamp the limiting member in the second mounting groove 71F.

[0272] The float member 71 further includes a float member connecting portion 71C between the float member first end portion 71A and the float member second end portion 71B. The float member connecting portion 71C extends through the second opening 42 and is movable in the axial direction DA between the second open position and the second closed position in the second opening 42. The float member connecting portion 71C has a gap with the inner peripheral surface of the second opening 42. For example, when the stopper member 75 contacts the peripheral edge of one side of the second opening 42, the float seal assembly 37 is in the second closed position. When the stopper member 75 is away from the partition 32A, the float seal assembly 37 is in the second open position. In the second open position, the float member connecting portion 71C is in the second opening 42 with a gap with the inner wall of the second opening 42, so that the airflow can flow through the gap and the fifth air passage 115 is conducted.

[0273] For example, the radial dimension of the float member connecting portion 71C is smaller than the radial dimension of the second opening 42, so that the float member connecting portion 71C is in a clearance fit with the second opening 42. The radial dimension of the float member connecting portion 71C is 0.1 mm to 10 mm smaller than the radial dimension of the second opening 42. More preferably, the radial dimension of the float member connecting portion 71C is 0.2 mm to 2 mm smaller than the radial dimension of the second opening 42. Alternatively, the outer peripheral surface of the float member connecting portion 71C can be provided with at least one third groove extending in the axial direction DA, so that the float member connecting portion 71C has a gap with the inner peripheral surface of the second opening 42.

[0274] In the first embodiment, the axial direction DA is the up-down direction, the float member first end portion 71A is above the float member second end portion 71B, the float member first end portion 71A is above the second opening 42, and the float member second end portion 71B is below the second opening 42. The float member second end portion 71B is used to receive the action of the moving partition assembly 36 to move upward from the second closed position to the second open position. The float seal assembly 37 moves downward from the second open position to the second closed position by its own gravity. The mass (preset weight) of the float seal assembly 37 is, for example, 1 g to 50 g. More preferably, the mass of the float seal assembly 37 is, for example, 5 g to 20 g.

[0275] As previously mentioned, the preset weight of the floating seal assembly 37 needs to be compatible with the deformation capacity of the second one-way valve 35. It will be appreciated that when steam lifts the movable partition assembly 36, the steam overcomes the weight of the movable partition 64, the weight of the floating seal assembly 37, and the deformation force of the telescopic member 61, causing the movable partition 64 to separate from the first sealing member 91A on the annular wall 83B. When the steam pressure is insufficient to overcome the weight of the movable partition 64, the weight of the floating seal assembly 37, and the deformation force of the telescopic member 61, the movable partition 64 abuts against the first sealing member 91A, maintaining a certain pressure (e.g., 3 kPa to 4 kPa) in the cooking chamber 22. Therefore, the weight of the floating seal assembly 37 can be adapted to the micro-pressure of the cooking chamber 22. For example, the floating seal assembly 37 also includes a counterweight 78, which is disposed at the first end 71A of the floating member, above the sealing member 75. The total weight of the floating seal assembly 37 can be adjusted to an appropriate value by adjusting the weight of the counterweight 78.

[0276] The force applied by steam to the movable baffle assembly 36 is related to the effective area of ​​the movable baffle 64. The effective area of ​​the movable baffle 64 is the area of ​​the portion exposed to the exhaust chamber 83; or the area of ​​the movable baffle 64 that can be contacted by steam when the movable baffle assembly 36 is in the first closed position. When the movable baffle assembly 36 is in the first closed position, the area of ​​the movable baffle 64 that can be contacted by steam is the area of ​​the movable baffle 64 located inside the annular wall 83B. Preferably, the inner diameter of the annular wall 83B is 10 mm to 100 mm, more preferably 10 mm to 50 mm, more preferably 10 mm to 40 mm or 15 mm to 50 mm, more preferably 20 mm to 30 mm. The size of the first seal 91A matches the diameter of the annular wall 83B.

[0277] The first vent pipe 58 is located outside the annular wall 83B, and the distance from its center point to the midline point of the annular wall 83B (axis PA) is, for example, 17.5 mm to 60 mm, preferably 22.5 mm to 35 mm.

[0278] The second vent pipe 59 is located outside the annular wall 83B, and the distance from its center point to the midline point of the annular wall 83B (axis PA) is, for example, 12.5 mm to 55 mm, preferably 17.5 mm to 30 mm.

[0279] Other embodiments of the present application are introduced below, wherein the same contents as the first embodiment will not be repeated.

[0280] exist Figure 33In the second embodiment shown, the second one-way valve 35 is configured as a gravity ball. The axial direction of the third opening 43 is the up-down direction, and the gravity ball is seated in the third opening 43 by its own gravity to close the third opening 43, and can be lifted by the airflow of the airflow generating device 14 to open the third opening 43.

[0281] In Figure 34 In the third embodiment shown, the second one-way valve 35 is configured as a pneumatic float. The axial direction of the third opening 43 is the up-down direction, and the pneumatic float is seated in the third opening 43 by its own gravity to close the third opening 43, and can be lifted by the airflow of the airflow generating device 14 to open the third opening 43.

[0282] Of course, the air path integration device 30 can also be configured in other forms to integrate the air paths for suctioning negative pressure, discharging steam, and blowing cold air.

[0283] The processes and steps described in all of the preferred embodiments described above are merely examples. Unless an adverse effect occurs, various processing operations can be performed in a different order from the order of the processes described above. The order of the steps of the processes described above can also be added, combined, or deleted as needed.

[0284] In understanding the scope of the present application, the term "comprising" and its derivatives, as used herein, are intended to be open-ended terms that specify the presence of the stated features, elements, components, groups, integers, and / or steps, but do not exclude the presence of other unstated features, elements, components, groups, integers and / or steps. The foregoing also applies to like- meaning terms such as "comprising," "having," "including," and their derivatives, and their derivatives.

[0285] The term "attached" or "attach" as used herein includes a configuration in which an element is directly fixed to another element by fixing the element to the other element, a configuration in which an element is indirectly fixed to another element by fixing the element to an intermediate member, which in turn is fixed to the other element, and a configuration in which one element is integral with another element, i.e., one element is essentially a part of the other element. This definition also applies to words with similar meanings, such as "connected," "coupled," "engaged," "fixed," "bonded," "secured," and their derivatives. Finally, the degree terms such as "substantially," "approximately," and "about" as used herein mean an amount of deviation that does not significantly change the end result.

[0286] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the art of this application. The terms used herein are merely for describing specific implementation purposes and are not intended to limit this application. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or is otherwise indicated.

[0287] The present application has been described through the above-described embodiments, but it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present application to the described embodiments. In addition, those skilled in the art will understand that the present application is not limited to the above-described embodiments, and that various variations and modifications may be made based on the teachings of the present application, all of which fall within the scope of protection claimed in the present application.

Claims

1. A gas path integration device for a cooking appliance having a cooking cavity for holding food, characterized in that: The gas path integration device comprises: a device housing, the device housing surrounding the device inner cavity; A vent cavity, which is a part of the inner cavity of the device, wherein the cavity wall of the vent cavity is provided with a shell opening that can communicate with the external environment; and a movable baffle assembly, disposed in the inner cavity of the device and defining an exhaust cavity with a portion of the device housing, the exhaust cavity being configured to communicate with the cooking cavity; In which, the movable partition assembly has a first open position and a first closed position. When the movable partition assembly is in the first open position, a first opening connected to the ventilation cavity is formed between it and the device shell; when the movable partition assembly is in the first closed position, the exhaust cavity and the ventilation cavity are separated.

2. The gas path integration device according to claim 1, characterized in that: The movable partition assembly is configured to move from the first closed position to the first open position under the action of steam pressure in the cooking cavity.

3. The gas path integration device according to claim 2, characterized in that: The air path integration device further includes a mounting through hole, and the movable partition assembly is passed through the mounting through hole.

4. The gas path integration device according to claim 3, characterized in that: The movable partition assembly is movable relative to the mounting through-hole in an axial direction of the mounting through-hole between the first open position and the first closed position.

5. The gas path integration device according to claim 4, characterized in that: The movable partition assembly comprises: a telescopic member connected to the periphery of the mouth of the mounting through hole and capable of extending and contracting between the first open position and the first closed position in the axial direction of the mounting through hole; and The movable partition and part of the device shell define the exhaust chamber to receive the action of steam pressure. The movable partition is passed through the mounting hole and connected to the telescopic member to move synchronously with the telescopic member between the first open position and the first closed position.

6. The gas path integration device according to claim 5, characterized in that: The telescopic member includes a telescopic member outer peripheral portion and a telescopic member middle portion, the telescopic member outer peripheral portion is connected to the telescopic member middle portion at the periphery of the telescopic member middle portion, the telescopic member outer peripheral portion is used to be connected to the periphery of the mounting through hole, and the telescopic member middle portion is configured to be movable along the axial direction relative to the telescopic member outer peripheral portion between the first open position and the first closed position; The movable partition passes through the mounting through hole and is connected to the middle portion of the telescopic member.

7. The gas path integration device according to claim 6, characterized in that: The movable partition assembly further comprises a pressing pattern, which presses the outer peripheral portion of the telescopic member onto the periphery of the opening of the installation through hole.

8. The gas path integration device according to claim 6, characterized in that: The telescopic member is made of elastic material.

9. The gas path integration device according to claim 8, characterized in that: The middle portion of the telescopic member includes a pleated structure along the radial direction, and the pleated structure is concave and convex in the axial direction.

10. The gas path integration device according to claim 8, characterized in that: The middle portion of the telescopic member is detachably connected to the movable partition.

11. The gas path integration device according to claim 10, characterized in that: The movable partition is provided with a partition flange, and the middle portion of the telescopic member is tightly matched with the partition flange.

12. The gas path integration device according to claim 11, characterized in that: The partition flange is configured as a radially outward annular flange extending in the circumferential direction, and the middle portion of the telescopic member is configured with a second groove extending in the circumferential direction, wherein the notch and the groove bottom of the second groove are radially opposite to each other for accommodating the annular flange; and / or The middle portion of the telescopic member is configured with a radially inward annular protrusion extending circumferentially, and the partition flange is configured with a first groove extending circumferentially, wherein the notch and the groove bottom of the first groove are opposite in the radial direction for accommodating the annular protrusion.

13. The gas path integration device according to claim 5, characterized in that: The movable partition comprises: a partition connecting portion, the partition connecting portion being passed through the mounting through hole, and an end of the partition connecting portion away from the first opening being connected to the telescopic member; and The partition flange plate is arranged on the outer peripheral side of the partition connecting portion and is used for contacting the device housing.

14. The gas path integration device according to claim 13, characterized in that: The partition flange plate is provided with reinforcing ribs; and / or At least one guide column extending along the axial direction toward the first opening is provided around the mouth of the mounting through hole, and the partition flange plate is provided with at least one guide hole, which is provided corresponding to the guide column for accommodating the guide column.

15. The gas path integration device according to claim 2, characterized in that: The bottom wall of the exhaust cavity is provided with an exhaust port, and the exhaust port is used to communicate with the cooking cavity. The movable partition assembly forms the top wall of the exhaust cavity.

16. The gas path integration device according to claim 15, characterized in that: The axis of the exhaust port roughly coincides with the axis of the side wall of the exhaust chamber.

17. The gas path integration device according to claim 15, characterized in that: The ventilation cavity is located on the outer periphery of the side wall of the exhaust cavity and surrounds the first opening.

18. The gas path integration device according to claim 17, characterized in that: The bottom wall of the exhaust cavity and the bottom wall of the ventilation cavity extend in the same plane.

19. The gas path integration device according to claim 1, characterized in that: An acting component is provided in the inner cavity of the device, and the movable partition assembly moves from the first open position to the first closed position under the action of the acting component.

20. The gas path integration device according to any one of claims 1 to 19, characterized in that: A first sealing member is provided between the device housing and the movable partition assembly.

21. A cooking utensil, characterized in that: include: A cooking cavity for holding food; and The gas path integration device according to any one of claims 1 to 20, Wherein, the exhaust cavity is communicated with the cooking cavity.

22. The cooking appliance according to claim 21, wherein The cooking appliance further comprises: a pot body, wherein the cooking cavity is disposed on the pot body; and The cover body is used to cover the pot body. The gas path integration device is arranged on the cover body. When the cover body covers the pot body, the exhaust cavity is connected with the cooking cavity.

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