Floating sealing assembly, gas circuit integration device and cooking utensil

Abstract

The utility model discloses a floating sealing assembly, a gas circuit integration device and a cooking utensil. The floating sealing assembly is used for opening and closing an airflow channel in an air path integration device of the cooking utensil. The floating sealing assembly comprises a floating piece, a plugging piece and an elastic piece. The floating part is used for extending to penetrate through the airflow channel and can move between an open position and a closed position, the floating part comprises a first floating part end and a second floating part end which are oppositely arranged in the axial direction, and a gap is formed between at least part of the floating part and the inner circumferential surface of the airflow channel; the plugging piece is connected to the first end part of the floating piece, synchronously moves along with the floating piece, and is used for opening the gap at the opening position and plugging the gap at the closing position; the elastic piece is used for being connected to the first end of the floating piece or the second end of the floating piece. The floating piece is used for moving to be located at the opening position under the action of thrust and moving to be located at the closing position under the action of the elastic piece.

Description

[0001] The present application claims priority to the Chinese Utility Model Patent Application No. CN 202422235400.2, filed on September 11, 2024, entitled “Floating sealing assembly, gas path integration device and cooking appliance”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of cooking appliances, in particular to a floating sealing assembly for a gas path integration device of a cooking appliance, and a gas path integration device and a cooking appliance having the same. BACKGROUND

[0003] In order to improve the cooking effect of the rice cooker, the existing rice cookers generally have a steam valve for discharging steam, some also blow air into the pot to achieve rapid cooking, and some use a gas pump to extract negative pressure to improve the water absorption speed of rice and the preservation effect. All of these bring consumers a good cooking experience. However, the existing solutions are simply a combination of technologies, and the steam valve in the solution is single-functioned and can only be used to discharge steam. Therefore, a floating sealing assembly for a gas path integration device is needed to increase the functionality of the gas path integration device. 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 a floating sealing assembly for opening and closing a gas flow passage in a gas path integration device of a cooking appliance, the floating sealing assembly comprising:

[0006] a floating member for extending through the gas flow passage and being movable in the gas flow passage between an open position and a closed position, the floating member comprising a floating member first end portion and a floating member second end portion oppositely arranged along an axial direction, and a gap being formed between at least a portion of the floating member and an inner circumferential surface of the gas flow passage;

[0007] a blocking member connected to the floating member first end portion and moving synchronously with the floating member, for opening the gap when the floating member is located at the open position, and blocking the gap when the floating member is located at the closed position; and

[0008] a resilient member for being connected to the floating member first end portion or the floating member second end portion,

[0009] The floating member is used to move along the axial direction under the action of the pushing force to be located at the open position, and is used to move along the axial direction under the action of the elastic member to be located at the closed position.

[0010] According to the application, the floating sealing assembly opens the airflow passage under the action of the pushing force and automatically seals the airflow passage under the action of the elastic member. The floating sealing assembly can change the internal airflow of the gas path integration device, so that the gas path integration device has different functions under different gas path configurations. The elastic force of the elastic member is matched with the external force, for example, can be matched with the pressure of the steam generated during cooking, and is moved under the action of the steam pressure to change the gas path.

[0011] Optionally, the sealing member comprises an elastic material.

[0012] According to the application, the sealing member comprises an elastic material, so that the sealing member can seal the airflow passage.

[0013] Optionally, the first end portion of the floating member is used to protrude out of the airflow passage, and the sealing member is used to cover the gap when the floating member is located at the closed position.

[0014] According to the application, the method for the sealing member to seal the gap of the airflow passage is simple. The first end portion of the floating member is used to be located outside the airflow passage, so that the external force can be easily applied to the first end portion of the floating member.

[0015] Optionally, the radial dimension of the sealing member is 2-10mm.

[0016] According to the application, the size of the sealing member can be flexibly set.

[0017] Optionally, the sealing member is provided with a mounting hole, and the first end portion of the floating member passes through the mounting hole, so that the sealing member is sleeved on the outer periphery of the first end portion of the floating member.

[0018] According to the application, the connection mode of the sealing member and the floating member is simple.

[0019] Optionally, the outer periphery of the first end portion of the floating member is provided with a first mounting groove extending in the circumferential direction, which is used to accommodate the part of the sealing member located around the mouth of the mounting hole.

[0020] According to the application, the relative position of the sealing member and the floating member is stable.

[0021] Optionally, the floating sealing assembly further comprises an additional limiting member, which is arranged at the first end portion of the floating member and located on the side of the sealing member away from the airflow passage, and the radial dimension of the additional limiting member is greater than the inner diameter of the airflow passage.

[0022] According to the application, the additional limiting member is used to prevent the floating member from being pulled out of the airflow passage.

[0023] Optionally, the elastic member is used to connect to the side of the additional limiting member which is opposite to the blocking member.

[0024] According to the application, the elastic force of the elastic member acts on the additional limiting member.

[0025] Optionally, the second end of the floating member is used to extend out of the airflow passage, and the elastic member is used to be arranged between the second end of the floating member and the passage opening of the airflow passage which is close to the side of the second end of the floating member.

[0026] According to the application, the second end of the floating member is used to be located outside the airflow passage, so as to facilitate the external force to act on the second end of the floating member.

[0027] Optionally, the floating sealing assembly further comprises a limiting member, the limiting member is arranged at the second end of the floating member, and the dimension of the floating sealing assembly along the radial direction of the airflow passage at the limiting member is greater than the inner diameter of the airflow passage.

[0028] According to the application, the limiting member is used to prevent the floating member from being pulled out of the airflow passage.

[0029] Optionally, the elastic member is used to be arranged between the passage opening and the limiting member.

[0030] According to the application, the limiting member has the function of connecting the elastic member, and the structure of the floating sealing assembly is compact.

[0031] Optionally, the limiting member is sleeved on the outer periphery of the second end of the floating member, or is configured as a local protrusion of the outer surface of the second end of the floating member.

[0032] According to the application, the connection mode of the limiting member and the floating member is simple

[0033] Optionally, the limiting member is configured as a limiting ring, and the outer periphery of the second end of the floating member is provided with a second mounting groove extending in the circumferential direction, which is used to accommodate the limiting ring.

[0034] According to the application, the relative position of the limiting member and the floating member is stable.

[0035] Optionally, the floating member further comprises a floating member connecting portion between the first end of the floating member and the second end of the floating member, and the floating member connecting portion has a gap with the inner peripheral surface of the airflow passage.

[0036] According to the present application, when the floating member moves in the axial direction, the floating member connecting portion is always located in the airflow passage, and a gap is formed between the floating member connecting portion and the inner circumferential surface of the airflow passage, so that the airflow can flow through the airflow passage.

[0037] Optionally,

[0038] The outer circumferential surface of the floating member connecting portion is provided with at least one third groove extending in the axial direction, so that a gap is formed between the floating member connecting portion and the inner circumferential surface of the airflow passage; and / or

[0039] The radial dimension of the floating member connecting portion is smaller than the radial dimension of the airflow passage, and the floating member connecting portion is used to fit with the gap of the airflow passage.

[0040] According to the present application, the method of forming a gap between the floating member connecting portion and the airflow passage is simple.

[0041] Optionally, the elastic member is configured as a spring.

[0042] According to the present application, the elastic member is low in cost, stable in performance, and easy to obtain.

[0043] The second aspect of the present application provides a gas path integration device for a cooking appliance, which comprises:

[0044] A device housing encloses a device inner cavity;

[0045] A partition plate is arranged in the device inner cavity, and the partition plate is provided with an opening to form an airflow passage for passing airflow; and

[0046] The floating sealing assembly according to any one of the first aspect, wherein the floating member extends through and is movable in the airflow passage, a gap is formed between at least part of the floating member and the inner circumferential surface of the airflow passage, the elastic member is arranged between the device housing and the first end portion of the floating member, or the elastic member is arranged between the partition plate and the second end portion of the floating member.

[0047] According to the present application, the floating sealing assembly opens the airflow passage under the action of the thrust force and automatically seals the airflow passage under the action of the elastic member. The floating sealing assembly can change the internal gas path of the gas path integration device, so that the gas path integration device has different functions under different gas path configurations.

[0048] Optionally, the device inner cavity is used to communicate with a cooking cavity, and the gas path integration device further comprises an acting component, and the thrust force refers to the force of the acting component moving under the action of the steam pressure of the cooking cavity and pushing the floating member.

[0049] According to the present application, the floating sealing assembly is driven to move by steam.

[0050] Optionally, the gas path integration device further comprises a driving component for acting on the first end of the floating member to move the floating member.

[0051] According to the present application, the floating sealing assembly can also be driven to move by the driving component.

[0052] Optionally, the floating member further comprises a floating member connecting portion between the first end of the floating member and the second end of the floating member, the radial dimension of the floating member connecting portion is smaller than the radial dimension of the gas flow passage, and the floating member connecting portion is in clearance fit with the gas flow passage.

[0053] Further, the radial dimension of the floating member connecting portion is 0.1mm to 10mm smaller than the radial dimension of the gas flow passage.

[0054] Further, the radial dimension of the floating member connecting portion is 0.2mm to 2mm smaller than the radial dimension of the gas flow passage.

[0055] According to the present application, the method of making the floating member connecting portion and the gas flow passage have a clearance is simple.

[0056] The third aspect of the present application provides a cooking appliance, which comprises:

[0057] a cooking cavity for containing food materials; and

[0058] The gas path integration device according to any one of the second aspect,

[0059] wherein the device inner cavity is in communication with the cooking cavity.

[0060] According to the present application, the floating sealing assembly opens (or blocks) the gas flow passage under the action of external force, and automatically blocks (or opens) the gas flow passage under the action of the elastic member. The floating sealing assembly can change the internal gas path of the gas path integration device, so that the gas path integration device has different functions under different gas path configurations. When the device inner cavity is in communication with the cooking cavity, the different gas paths of the device inner cavity can change the direction of the gas flow between the device inner cavity and the cooking cavity, so that the gas path integration device can be used to realize multiple functions.

[0061] Optionally, the cooking appliance further comprises a gas flow generating device, the gas flow generating device comprises a gas flow inlet and a gas flow outlet, the device inner cavity is in communication with the gas flow inlet and the gas flow outlet, and the gas flow passage is arranged on the gas path connecting the gas flow inlet and the gas flow outlet.

[0062] According to the present application, the air path integration device is connected with the air flow generating device, when the air path in the air path integration device changes, the flow direction of the air flow generated by the air flow generating device in the air path integration device changes, so that the air path integration device has multiple functions, for example, cold air can be blown to the cooking cavity or air can be sucked from the cooking cavity.

[0063] Optionally, the cooking utensil further comprises:

[0064] a pot body, the pot body is provided with the cooking cavity; and

[0065] a cover body, used for covering the pot body, the air flow generating device and the air path integration device are arranged in the cover body, wherein, when the cover body covers the pot body, the device cavity communicates with the cooking cavity.

[0066] According to the present application, the air flow generating device and the air path integration device are arranged close to each other, which facilitates the connection between the two. BRIEF DESCRIPTION OF DRAWINGS

[0067] The following drawings for the present application are hereby incorporated into the present application as a part of the present application for the purpose of understanding the present application. The drawings in the present application show representative embodiments of the present application, which are used to explain the principles of the present application, but not to limit the present application.

[0068] In the drawings:

[0069] Figure 1 is a perspective view of a part of the cooking utensil according to the first embodiment of the present application;

[0070] Figure 2 is a perspective view of a part of the cooking utensil according to the first embodiment of the present application; Figure 1

[0071] Figure 3 is a perspective view of a part of the cooking utensil according to the first embodiment of the present application; Figure 1

[0072] Figure 4 is a perspective view of a part of the cooking utensil according to the first embodiment of the present application; Figure 1

[0073] Figure 5 is a perspective view of a part of the cooking utensil according to the first embodiment of the present application; Figure 2

[0074] Figure 6 is a perspective view of a part of the cooking utensil according to the first embodiment of the present application; Figure 1

[0075] Figure 7 is a perspective view of a part of the cooking utensil according to the first embodiment of the present application; Figure 1

[0076] Figure 8 is a perspective view of a part of the cooking utensil according to the first embodiment of the present application;​​​​​​Figure 1 Fig. 6 is a perspective view of the gas path integration device of Fig. 1, shown in exploded view;

[0077] Figure 9 Fig. 7 is an enlarged view of portion A of Fig. 6; Figure 8

[0078] Figure 10 Fig. 8 is a perspective view of the gas path integration device of Fig. 1, shown in exploded view; Figure 1

[0079] Figure 11 Fig. 9 is a side view of the gas path integration device of Fig. 1, shown in exploded view; Figure 1

[0080] Figure 12 Fig. 10 is a top view of the gas path integration device of Fig. 1, shown in exploded view; Figure 1

[0081] Figure 13 Fig. 11 is a bottom view of the gas path integration device of Fig. 1, shown in exploded view; Figure 1

[0082] Figure 14 Fig. 12 is a perspective view of the gas path integration device of Fig. 1, shown in exploded view; Figure 1

[0083] Figure 15 Fig. 13 is a perspective view of the lower device cover of Fig. 1, shown in assembled view; Figure 7

[0084] Figure 16 Fig. 14 is a top view of the lower device cover of Fig. 1, shown in assembled view; Figure 7

[0085] Figure 17 Fig. 15 is a side view of the lower device cover of Fig. 1, shown in assembled view; Figure 7

[0086] Figure 18 Fig. 16 is a perspective view of the upper partition pre-assembly of Fig. 1, shown in assembled view; Figure 14

[0087] Figure 19 Fig. 17 is a top view of the upper partition pre-assembly of Fig. 1, shown in assembled view; Figure 18

[0088] Figure 20 Fig. 18 is a side view of the upper partition pre-assembly of Fig. 1, shown in assembled view; Figure 18

[0089] Figure 21 Fig. 19 is a perspective view of the lower partition pre-assembly of Fig. 1, shown in assembled view; Figure 14

[0090] Figure 22 Fig. 20 is a top view of the lower partition pre-assembly of Fig. 1, shown in assembled view; Figure 21 Fig. 21 is a side view of the lower partition pre-assembly of Fig. 1, shown in assembled view;​​​​​​​​​​​​​

[0091] Figure 23 is a side view cross-sectional schematic of the lower divider pre-assembly in Figure 21 ;

[0092] Figure 24 is a bottom view schematic of the lower divider in Figure 7 ;

[0093] Figure 25 is a side view exploded cross-sectional schematic of the gas path integration device in Figure 1 , wherein the mobile bulkhead assembly is in a first closed position and the floating seal assembly is in a second closed position;

[0094] Figure 26 is a side view exploded cross-sectional schematic of the gas path integration device in Figure 1 , wherein the mobile bulkhead assembly is in a first open position and the floating seal assembly is in a second open position;

[0095] Figure 27 is a perspective exploded schematic of the mobile bulkhead assembly in Figure 7 ;

[0096] Figure 28 is a side view exploded cross-sectional schematic of the mobile bulkhead assembly in Figure 7 ;

[0097] Figure 29 is a top view schematic of the mobile bulkhead assembly in Figure 7 ;

[0098] Figure 30 is a perspective exploded schematic of the floating seal assembly in Figure 7 ;

[0099] Figure 31 is a side view exploded cross-sectional schematic of the floating seal assembly in Figure 7 ;

[0100] Figure 32 is a bottom view schematic of the floating seal assembly in Figure 7 ;

[0101] Figure 33 is a side view cross-sectional schematic of a gas path integration device of a cooking appliance according to a second embodiment of the present application;

[0102] Figure 34 is a side view cross-sectional schematic of a gas path integration device of a cooking appliance according to a third embodiment of the present application;

[0103] Figure 35 is a side view cross-sectional schematic of a gas path integration device of a cooking appliance according to a fourth embodiment of the present application;

[0104] Figure 36 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0105] Figure 37 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0106] Figure 38 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0107] Figure 39 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0108] Figure 40 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0109] Figure 41 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0110] Figure 42 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0111] Figure 43 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0112] Figure 44 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application; Figure 43 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0113] Figure 45 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application; Figure 43 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0114] Figure 46 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application; Figure 43 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0115] Figure 47 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application; Figure 43 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0116] Figure 48 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application; Figure 43 FIG. 8 is a side view schematic diagram of a gas path integration device according to a sixth embodiment of the present application;

[0117] BRIEF DESCRIPTION OF THE DRAWINGS

[0118] 10: cover 11: cover gasket

[0119] 11A: cover accommodating groove 12: detachable cover

[0120] 13: face cover 14: air flow generating device

[0121] 15: air flow inlet 16: air flow outlet

[0122] 17A: top temperature sensor 17B: bottom temperature sensor

[0123] 18: air outlet passage 19: air inlet passage

[0124] 20: pot body 21: inner pot

[0125] 22: cooking cavity 28: heating device

[0126] 30: air path integration device 31: device upper cover

[0127] 31A: upper cover top wall 31B: upper cover side wall

[0128] 31C: upper cover annular wall 32: upper partition

[0129] 32A: partition plate 32B: upper groove side wall

[0130] 32C: lower groove side wall 32D: partition plate connecting portion

[0131] 32E: through hole

[0132] 33: lower partition 33A: air vent hole

[0133] 33B: mounting structure 33C: mounting through hole

[0134] 33D: through hole 33E: clamping groove

[0135] 34: device lower cover

[0136] 34A: lower cover bottom wall 34B: lower cover side wall

[0137] 34C, 34D: through hole 35: second one-way valve

[0138] 36: moving partition assembly 37: floating sealing assembly

[0139] 38: device housing 39: device inner cavity

[0140] 41: first opening 42: second opening

[0141] 43: third opening 45: first blocking piece

[0142] 46: blocking piece side edge 47: blocking piece middle portion

[0143] 48: guide column 49: second blocking member

[0144] 51: first common cavity wall 52: second common cavity wall

[0145] 53: upper partition preassembled component 54: lower partition preassembled component

[0146] 55: housing aperture 55A: first housing aperture

[0147] 55B: second housing aperture 56: exhaust pipe

[0148] 57: third vent pipe 58: first vent pipe

[0149] 59: second vent pipe 61: telescopic member

[0150] 61A: telescopic member outer peripheral portion 61B: telescopic member intermediate portion

[0151] 61C: pleated structure 61E: annular protrusion

[0152] 61H: second groove 64: movable partition

[0153] 64A: partition flange plate 64B: partition connecting portion

[0154] 64C: accommodating groove 64D: guide hole

[0155] 64E: first groove 64F, 64G: through hole

[0156] 64H: partition flange 65: press ring

[0157] 66: press ring connecting portion 67: press ring

[0158] 68: convex rib

[0159] 69: reinforcing rib 71: floating member

[0160] 71A: floating member first end portion 71B: floating member second end portion

[0161] 71C: floating member connecting portion 71E: first mounting groove

[0162] 71F: second mounting groove 75: plugging member

[0163] 76: diaphragm mounting hole 77: limiting member

[0164] 78: counterweight member 79: elastic member

[0165] 81: air blowing cavity

[0166] 82: switching cavity 83: exhaust cavity

[0167] 83A: bottom wall of exhaust cavity 83B: annular wall

[0168] 83C: exhaust port 83D: suction port

[0169] 83E: steam discharge side 83F: cold air communication side

[0170] 84: ventilation cavity 84A: bottom wall of ventilation cavity

[0171] 85: exhaust cavity 86: combined cavity

[0172] 91A: first sealing member 91B: second sealing member

[0173] 91C: third sealing member 91D: fourth sealing member

[0174] 91E: fifth sealing member 92A: first spring

[0175] 92B: second spring 92C: third spring

[0176] 93A: first magnet 93B: second magnet

[0177] 94A: first rotary buckle 94B: second rotary buckle

[0178] 94C: third rotary buckle 94D: fourth rotary buckle

[0179] 95: temperature-sensitive deformation member 96: flexible member

[0180] 97: first positioning portion 97A: positioning column

[0181] 97B: positioning rib 98: second positioning portion

[0182] 98A: positioning hole 98B: positioning groove

[0183] 100: cooking appliance

[0184] 110: gas path structure 111: first gas path

[0185] 112: second gas path 113: third gas path

[0186] 114: fourth gas path 115: fifth gas path

[0187] 130: driving assembly 131: lever

[0188] 132: driving device DA: axial direction

[0189] DC: circumferential direction DR: radial direction

[0190] PA: axis DETAILED DESCRIPTION

[0191] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. One skilled in the relevant art will recognize, however, that the application can be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures have not been described in detail in order to avoid obscuring the application.

[0192] For a thorough understanding of the application, reference is made to the following description taken in connection with the accompanying drawings. It is apparent that the application can be practiced without the specific details set forth in connection with the following description, and that the scope of the application includes other implementations beyond the particular embodiments described and / or pictured herein. The following description is presented for the purpose of illustrating the application and is not intended to limit the application in its various forms as described herein.

[0193] The ordinal numbers such as "first" and "second" used in the present application are merely identifiers but do not have any other meaning, for example, a particular order. Also, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component". The use of "first", "second", and "third" words does not indicate any order, and these words can be interpreted as names.

[0194] It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and similar terms are used for explanation only and not to limit.

[0195] In this document, "identical", "same", and the like are not limited in a strict mathematical and / or geometrical sense, but also include errors that can be understood by those skilled in the art and allowed in manufacturing or use, etc.

[0196] Unless otherwise indicated, numerical ranges in this document are inclusive of the entire range and also of several sub-ranges within the range.

[0197] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings.

[0198] The present application provides a cooking appliance.

[0199] As Figures 1 to 4As shown, in the first embodiment, the cooking utensil 100 according to the present application can include a pot body 20 and a cover body 10. The pot body 20, for example, includes a pot liner 21. Generally, the pot body 20 can have a cylindrical-shaped (or other shape) receiving cavity, and the pot liner 21 can be freely put into or taken out of the receiving cavity to facilitate cleaning of the pot liner 21. The pot liner 21, for example, is made of a metal material and is configured as a revolution body having an opening and an inner cavity formed by a pot wall. The capacity of the pot liner 21 is generally below 6L, for example, the capacity of the pot liner 21 can be 2L or 4L, etc. The pot liner 21 has a pot liner opening for taking and placing food materials, and an inner space of the pot liner 21 forms a cooking cavity 22 for holding and heating food materials. The cover body 10 can be pivotably connected to the pot body 20 by a pivot shaft for covering the pot body 20.

[0200] The cooking utensil 100 has a heating device 28. The heating device 28 is generally arranged at the bottom of the pot body 20, below the pot liner 21. The heating device 28 is used to heat the pot liner 21 and the food materials therein, thereby realizing the cooking function. The heating device 28, for example, can be configured in the form of a heating disc, an electromagnetic heating coil, etc.

[0201] The cooking utensil 100 has a top temperature sensor 17A, which is generally arranged on the cover body 10 and is used to detect the top temperature of the cooking cavity 22. A bottom temperature sensor 17B is also arranged in the pot body 20 and is used to detect the bottom temperature of the cooking cavity 22. The bottom temperature sensor 17B, for example, is in contact with the bottom wall of the pot liner 21.

[0202] In addition, the cooking utensil 100 also includes a control device (not shown), which is used to realize the cooking control of the cooking utensil 100. The control device, for example, can be a micro control unit (MCU). The control device is electrically connected with the heating device 28 and the temperature sensors, so that the control device can control the heating device 28 to work according to the detection values of the temperature sensors.

[0203] It should be noted that, in the present application, the directional terms "upper" and "lower" are determined based on the cooking utensil 100 which is placed upright and the cover body 10 is in a closed state.

[0204] It should be noted that, although the partial structure of the cooking utensil 100 is described schematically 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.

[0205] As Figure 3 and Figure 5As shown, the lid 10 includes, for example, a face cover 13, a backing cover 11 and a detachable cover 12. The backing cover 11 forms a skeleton of the lid 10, and various components (e.g. a top temperature sensor 17A) in the lid 10 are mounted on the backing cover 11. The backing cover 11 is pivotally connected to the pot body 20, for example, so that the lid 10 can be closed on the pot body 20. The face cover 13 forms an outer shell of the lid 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 a bottom of the lid 10. The detachable cover 12 is used to close a pot opening of a pot liner 21.

[0206] The cooking process of the cooking appliance 100 includes, for example, a preheating procedure, a water absorption procedure, a boiling procedure, a boiling maintenance procedure, a rice 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 boiled in the boiling maintenance procedure to substantially cook the foodstuff. In the rice braising procedure, the residual free water is dried to further cook the foodstuff. Finally, in the temperature maintenance procedure, the foodstuff is maintained at a temperature so that the user can eat the hot foodstuff.

[0207] To improve the cooking quality, in the water absorption procedure, the cooking cavity 22 is usually pumped to a negative pressure, i.e. the air pressure in the cooking cavity 22 is lower than the ambient air pressure. 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 pumped to a negative pressure, and the negative pressure environment is beneficial to the foodstuff to be fresh-kept. To improve the cooking efficiency, in the boiling maintenance procedure, the cooking cavity 22 is blown with cold air, i.e. the ambient air is discharged into the cooking cavity 22, which functions to prevent the foodstuff 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.

[0208] To achieve the above functions, referring back to Figure 6 , the cooking appliance 100 further includes an air flow generating device 14 and an air path integrating device 30. The air flow generating device 14, the air path integrating device 30 and the cooking cavity 22 are organically connected to form an air path structure 110 of the cooking appliance 100, which can realize the steam discharge, the negative pressure pumping and the cold air blowing of the cooking cavity 22.

[0209] The air flow generating device 14 is a component for promoting the air flow, for example, a gas pump. The air flow generating device 14 includes an air flow inlet 15 and an air flow outlet 16. When the air flow generating device 14 works, the air flow enters the air flow generating device 14 from the air flow inlet 15, and then is discharged from the air flow outlet 16. The air flow generating device 14 is electrically connected to the control device, for example, to work under the control of the control device.

[0210] As shown in Figures 6 to 8As shown, the air path integration device 30 has a device housing 38 enclosing a device internal cavity 39. The device housing 38 can be formed by the outer shells or partial outer shells of the components of the air path integration device 30 in the assembled state. The device housing 38 is provided with a housing opening 55 through which the device internal cavity 39 is in communication with the external environment. The device internal cavity 39 is provided with a first air path 111 (see the red arrow air flow path in the figure), a second air path 112 (see the brown arrow air flow path in the figure), a third air path 113 (see the blue arrow air flow path in the figure), a fourth air path 114 (see the green arrow air flow path in the figure), and a fifth air path 115 (see the purple arrow air flow path in the figure). Each air path, i.e. an air flow channel, can be formed by a pipe, a cavity, an opening, or any structure through which air can pass. In other words, the pipe, the cavity, the opening, or any structure through which the air flow passes is a constituent part of the air path.

[0211] Specifically, the first air path 111 is configured to connect the cooking cavity 22 and the air flow inlet 15, and air flows from the cooking cavity 22 to the air flow inlet 15. The second air path 112 is configured to connect the air flow outlet 16 and the housing opening 55, and air flows from the air flow outlet 16 to the housing opening 55. The third air path 113 is configured to connect the cooking cavity 22 and the housing opening 55, and air flows from the cooking cavity 22 to the housing opening 55. The fourth air path 114 is configured to connect the housing opening 55 and the air flow inlet 15, and air flows from the housing opening 55 to the air flow inlet 15. The fifth air path 115 is configured to connect the air flow outlet 16 and the cooking cavity 22. Thus, by means of the first air path 111 and the second air path 112, the cooking cavity 22 can be subjected to negative pressure when the air flow generating device 14 is in operation. By means of the third air path 113, the cooking cavity 22 can be subjected to steam exhaust. By means of the fourth air path 114 and the fifth air path 115, the cooking cavity 22 can be subjected to air blowing when the air flow generating device 14 is in operation.

[0212] The mode in which the first air path 111 and the second air path 112 are connected is an air extraction mode in which the air path integration device 30 extracts air from the cooking cavity 22. The mode in which the third air path 113 is connected is a steam exhaust mode in which the air path integration device 30 exhausts steam from the cooking cavity 22. The mode in which the fourth air path 114 and the fifth air path 115 are connected is an air injection mode in which the air path integration device 30 injects air into the cooking cavity 22.

[0213] 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.

[0214] 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.

[0215] 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 containing groove 11A for containing the air path integration device 30. The air path integration device 30 is detachably mounted in the cover containing 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 containing groove 11A.

[0216] 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 containing 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.

[0217] The first air path 111 and the fourth air path 114 are upstream air paths of the air flow generating device 14, and can share the third air pipe 57, i.e., the third air pipe 57 is on both the first air path 111 and the fourth air path 114. The third air pipe 57 is also referred to as a tubular connecting portion. The second air path 112 and the fifth air path 115 are downstream air paths of the air flow generating device 14, and can share the first air pipe 58, i.e., the first air pipe 58 is on both the second air path 112 and the fifth air path 115.

[0218] As shown in Figs. 8 and 9, the device cavity 39 can include a blowing cavity 81, a switching cavity 82, an exhaust cavity 83, an air passage cavity 84, and an exhaust cavity 85. The housing aperture 55 is arranged on the cavity wall of the air passage cavity 84 and the exhaust cavity 85, but not arranged on the cavity wall of the blowing cavity 81, the switching cavity 82, and the exhaust cavity 83. Therefore, the air passage cavity 84 and the exhaust cavity 85 are always in communication with the external environment. The exhaust cavity 83 is in communication with the exhaust pipe 56 and the third air pipe 57, and thus is always in communication with the cooking cavity 22 and the air flow inlet 15. The first air pipe 58 is in communication with the switching cavity 82, so that the switching cavity 82 is always in communication with the air flow outlet 16. The blowing cavity 81 is in communication with the second air pipe 59, and thus is always in communication with the cooking cavity 22. Figure 7 Figure 8

[0219] The structure of the air path integration device 30 on the first air path 111 includes, in sequence along the air flow direction, the exhaust pipe 56, the exhaust cavity 83, and the third air pipe 57. The structure of the air path integration device 30 on the second air path 112 includes, in sequence along the air flow direction, the first air pipe 58, the switching cavity 82, and the exhaust cavity 85. The switching cavity 82 and the exhaust cavity 85 are adjacent. The structure of the air path integration device 30 on the third air path 113 includes, in sequence along the air flow direction, the exhaust pipe 56, the exhaust cavity 83, and the air passage cavity 84. The exhaust cavity 83 and the air passage cavity 84 are adjacent. The structure of the air path integration device 30 on the fourth air path 114 includes, in sequence along the air flow direction, the air passage cavity 84, the exhaust cavity 83, and the third air pipe 57. The structure of the air path integration device 30 on the fifth air path 115 includes, in sequence along the air flow direction, the first air pipe 58, the switching cavity 82, the blowing cavity 81, and the second air pipe 59. The switching cavity 82 and the blowing cavity 81 are adjacent.

[0220] The switching cavity 82 and the blowing cavity 81 are collectively referred to as a combined cavity 86. The combined cavity 86 is used to communicate the first air pipe 58 and the second air pipe 59. The combined cavity 86 is used to communicate the first air pipe 58 and the cooking cavity 22. The combined cavity 86 is used to communicate the air flow outlet 16 and the second air pipe 59. The combined cavity 86 is used to communicate the air flow outlet 16 and the cooking cavity 22.

[0221] ​​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.

[0222] 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.

[0223] 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.

[0224] 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.

[0225] 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.

[0226] 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.

[0227] 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.

[0228] 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 located 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.

[0229] 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.

[0230] The moving 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 moving 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 moving partition assembly 36 and the device shell 38 is provided with a cavity space for forming the exhaust air cavity 83. For example, the moving 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 moving partition assembly 36 is located at the first open position, the moving partition assembly 36 is away from the part of the device shell 38 and a first opening 41 is formed between the moving partition assembly 36 and the part of the device shell 38 (see FIG. 6). When the moving partition assembly 36 is located at the first closed position, the moving partition assembly 36 is close to the part of the device shell 38 and a second opening 42 is formed between the moving partition assembly 36 and the part of the device shell 38 (see FIG. 7). 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.

[0231] 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.

[0232] 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.

[0233] The float 71 of the float seal assembly 37 is moved in the axial direction DA from the second closed position to the second open position under the action of a pushing force of the acting component. The pushing force refers to the force by which the acting component is moved and pushes the float 71 under the action of the steam pressure in the cooking cavity 22.

[0234] When the first opening 41 is open, the third air path 113 for discharging steam is also open. Thus, the cooking cavity 22 can be simultaneously discharged of steam and cooled by the cold air. Preferably, the cooking appliance 100 is configured such that the first opening 41 is opened under the action of the steam pressure in the cooking cavity 22, or the moving baffle assembly 36 opens the first opening 41 under the action of the steam pressure in the cooking cavity 22. When the moving baffle assembly 36 and the float seal assembly 37 are linked, the float seal assembly 37 opens the second opening 42 under the action of the steam pressure in the cooking cavity 22, or the second opening 42 is opened under the action of the steam pressure in the cooking cavity 22. That is, when the moving baffle assembly 36 is moved from the first closed position to the first open position under the action of the steam pressure in the cooking cavity 22, the moving baffle assembly 36 contacts the float seal assembly 37 in the second closed position, and then forces the float seal assembly 37 to move together with the moving baffle assembly 36, so that the float seal assembly 37 is moved to the second open position. Thus, the opening of the first opening 41 does not require the participation of electrical components, and the control is simple and cost-saving. Moreover, when the steam in the cooking cavity 22 can drive the moving baffle assembly 36 to move, it indicates that a large amount of steam has been generated in the cooking cavity 22, for example, in the boiling maintenance process. At this time, the first opening 41 is open, which can discharge steam and blow cold air, and meets the needs of anti-overflow in the boiling maintenance process.

[0235] In the present application, the force by which the steam opens the moving baffle 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.

[0236] 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 boiling maintenance process, and control the air flow generating device 14 to work after it is determined to enter the boiling maintenance process. Those skilled in the art can adjust the control software and component parameters through experiments, so that the moving baffle assembly 36 has opened the first opening 41 under the action of the steam in the cooking cavity 22 before the control software confirms to enter the boiling maintenance process.

[0237] 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.

[0238] 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 or an open state in which it is 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 is closed (in a closed position or closed state). The second one-way valve 35 includes, for example, an elastic component that deforms 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.

[0239] 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.

[0240] 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.

[0241] 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.

[0242] 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.

[0243] 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.

[0244] The specific exemplary structure of the air path integration device 30 will be introduced below.

[0245] 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.

[0246] The air path integration device 30 includes a device upper cover 31 (also referred to as a first cover), an upper partition 32 (also referred to as a first partition), a lower partition 33 (also referred to as a second partition), and a device lower cover 34 (also referred to as a second cover). The device upper cover 31 and the device lower cover 34 form parts of a device housing 38, 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 a bottom wall of the containing 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 a lower surface of the device lower cover 34.

[0247] The device upper cover 31 is for example generally configured as a top hat, and includes 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 an upper end of the cover side wall 31B, and forms a hat top, constituting a top wall of the air path integration device 30. The cover annular wall 31C has an inner peripheral edge connected to an outer peripheral surface of a 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 includes a lower cover bottom wall 34A and a lower cover side wall 34B. The lower cover side wall 34B is also in the axial direction DA. The lower cover bottom wall 34A is connected to a lower end of the lower cover side wall 34B, and constitutes a bottom wall of the air path integration device 30, configured to contact a groove bottom of the containing groove 11A. The lower cover bottom wall 34A is for example planar, thereby reducing processing difficulty. An outer peripheral edge of the cover annular wall 31C is located above an opening of the lower cover side wall 34B.

[0248] 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.

[0249] The lower partition 33 is for example configured as a disc, and has an outer peripheral edge connected to an 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 rotation buckle 94C (see Figure 11 and Figure 14 ). The upper partition 32 is located above the lower partition 33.

[0250] 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 ).

[0251] 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.

[0252] 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.

[0253] 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.

[0254] 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.

[0255] 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.

[0256] The space between the lower partition 33 and the device lower lid 34 forms the air exhaust cavity 83 and the air passage cavity 84. Specifically, referring to Figure 15 and Figure 16 , the lower lid 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 air exhaust cavity 83, and the outer side space of the annular wall 83B is used to form the air passage cavity 84. The middle portion of the lower lid bottom wall 34A forms the air exhaust cavity bottom wall 83A of the air exhaust cavity 83, and the annular wall 83B forms at least part of the air exhaust cavity side wall of the air exhaust cavity 83. The outer portion of the lower lid bottom wall 34A forms the bottom wall of the air passage cavity 84, the lower lid side wall 34B forms the side wall of the air passage cavity 84, and the lower partition 33 forms the top wall of the air passage cavity 84. The annular wall 83B is, for example, configured as a cylindrical wall.

[0257] 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. In the case where the annular wall 83B is a cylindrical wall, the first opening 41 is a circular opening, and the inner diameter of the circular opening is the inner diameter of the annular wall 83B.

[0258] An exhaust port 83C is arranged on the cavity wall of the exhaust cavity 83, and the exhaust port 83C is connected to the exhaust pipe 56, so that the exhaust cavity 83 is in communication with the cooking cavity 22. An exhaust inlet 83D is arranged on the cavity wall of the exhaust cavity 83, and the exhaust inlet 83D is connected to the third ventilation pipe 57, so that the exhaust cavity 83 is in communication with the airflow inlet 15. The exhaust port 83C and the exhaust inlet 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.

[0259] 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 is communicated to the first housing opening 55A through the ventilation hole 33A, so as to be in communication with the environment. See Figure 10 and Figure 11The housing opening 55 further comprises a second housing opening 55B provided at an upper portion of the upper cover sidewall 31B, which is configured to communicate the exhaust cavity 85 with the ambient. See Figure 1 When the gas circuit integration device 30 is assembled to the cover 10, the device upper cover 31 is protruded from the upper surface of the face cover 13, for example, so that the first and second housing openings 55A and 55B are communicated with the ambient.

[0260] The first vent tube 58 is provided at the lower partition 33. The first vent tube 58 extends in the axial direction DA in the device inner cavity 39, through the switching cavity 82 and the vent cavity 84, and out of 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, such that the first vent tube 58 is integrally formed with the cavity wall of the switching cavity 82, and the first vent tube 58 is integrally formed with the cavity wall of the vent cavity 84. The second vent tube 59 is provided at the middle portion of the partition 32A (see Figure 8 ), i.e. the bottom wall of the blowing cavity 81. The second vent tube 59 extends in the axial direction DA in the device inner cavity 39, through the switching cavity 82 and the vent cavity 84, and out of 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 circuit function of the exhaust cavity 83.

[0261] As mentioned above, the upper partition 32 is connected with the lower partition 33 by the second rotation buckle 94B, i.e. 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 externally threaded tube, 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.

[0262] When assembling the gas circuit integration device 30, the second one-way valve 35 and the floating seal assembly 37 are first mounted to the partition 32A, and the moving partition assembly 36 is mounted to the lower partition 33. Then the upper partition 32 is screwed and buckled with the lower partition 33. Next, 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. Finally, the second vent tube 59 is mounted to the partition connecting portion 32D.

[0263] In order not to affect the functions of the various cavities of the device inner cavity 39, a plurality of seals are further arranged in the device inner cavity. In order to ensure that the exhaust cavity 83 and the ventilation cavity 84 are not communicated in the negative pressure suction mode, a first seal 91A is arranged between the movable partition assembly 36 and the device shell 38. The first seal 91A is, for example, a sealing ring, which is, for example, straddled on the end of the annular wall 83B (see Figure 9 ). A second seal 91B is further arranged between the lower groove side wall 32C of the upper partition 32 and the edge of the lower partition 33, so as to realize the sealing of the switching cavity 82. At the same time, 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 cavity 85, the switching cavity 82 and the ventilation cavity 84. A third seal 91C is arranged between the upper groove side wall 32B of the upper partition 32 and the upper cover top wall 31A, so as to realize the sealing between the blowing cavity 81 and the exhaust cavity 85. The third seal 91C is, for example, a sealing ring, 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 cavity 82, a fourth seal 91D is arranged at the through hole 33D of the lower partition 33, so as to make the second ventilation pipe 59 in sealing contact with the through hole 33D, so that the switching cavity 82 and the ventilation cavity 84 are not communicated. A fifth seal 91E is arranged in the through hole 32E of the partition connecting portion 32D, so that the second ventilation pipe 59 is sealingly connected with the partition connecting portion 32D, for sealing between the blowing cavity 81 and the switching cavity 82.

[0264] The ventilation cavity 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 pipe 58 has been located in the through hole 34C, and the second ventilation pipe 59 has been located in the through hole 34D, and the through holes 34C and 34D reserve enough space for the corresponding gas pipes to move therein. As shown in Figure 13 , the through holes 34C and 34D are both long holes, when the device lower cover 34 just contacts the lower partition 33 in the axial direction DA, the two gas pipes 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 pipes are located at the other end of the corresponding long hole (such as the blue marked position in the figure).

[0265] 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 (also referred to as a first pre-assembled assembly). As shown in Figure 14 and Figures 21 to 23As shown, the mobile partition assembly 36 and the lower partition 33 can be pre-assembled to form a lower partition pre-assembled assembly 54 (also referred to as a second pre-assembled assembly). The upper partition pre-assembled assembly 53 and the lower partition pre-assembled assembly 54 are connected by the second rotary buckle 94B. After the upper partition pre-assembled assembly 53 and the lower partition pre-assembled assembly 54 are connected, the upper cover 31 and the upper partition pre-assembled assembly 53 are connected by the first rotary buckle 94A, and the lower cover 34 and the lower partition pre-assembled assembly 54 are connected by the third rotary buckle 94C.

[0266] The structure and installation mode of the mobile partition assembly 36 are described below.

[0267] Referring to Figure 24 , the lower partition 33 is provided with a mounting structure 33B for mounting the mobile partition assembly 36, and the mounting structure 33B includes a mounting through hole 33C. The mobile partition assembly 36 is arranged through the mounting through hole 33C. The mounting 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 mounting through hole 33C, and both are the axial direction DA. As Figure 9 shown, the first opening 41 and the mounting through hole 33C are spaced apart along the axial direction DA. The mobile partition assembly 36 is connected to the mounting through hole 33C and is movable relative to the mounting through hole 33C along the axial direction DA between the first open position and the first closed position.

[0268] As Figures 7 to 9 and Figures 27 to 29 shown, the mobile partition assembly 36 includes a telescopic member 61, a mobile partition 64, and a pressing ring 65.

[0269] The telescopic member 61 is connected to the periphery of the mounting through hole 33C and is telescopic in the axial direction DA of the mounting through hole 33C between the first open position and the first closed position. The mobile partition 64 defines an air exhaust cavity 83 with part of the device housing 38. The mobile partition 64 is arranged through the mounting 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.

[0270] The telescopic member 61 has, for example, a radial symmetry structure, including a telescopic member outer peripheral portion 61A and a telescopic member intermediate portion 61B, and the telescopic member outer peripheral portion 61A is connected to the telescopic member intermediate portion 61B at the outer periphery of the telescopic member intermediate portion 61B. The telescopic member outer peripheral portion 61A is in the form of a circular ring and is used to connect to the periphery of the mounting through hole 33C. The telescopic member intermediate portion 61B is configured to extend through the mounting through hole 33C and be movable relative to the telescopic member outer peripheral portion 61A in the axial direction DA of the mounting through hole 33C between the first open position and the first closed position in the mounting through hole 33C.

[0271] The movable partition 64 is connected to the side of the telescopic member intermediate portion 61B facing the first opening 41 and moves synchronously with the telescopic member intermediate portion 61B between the first open position and the first closed position. In the first embodiment, the movable partition 64 is moved from the first closed position (see Figure 25 ) to the first open position (see Figure 26 ) under the action of the steam pressure, thereby driving the telescopic member intermediate portion 61B to move from the first closed position to the first open position. The telescopic member intermediate portion 61B is moved from the first open position to the first closed position under the action of the floating seal assembly 37, thereby driving the movable partition 64 to move from the first open position to the first closed position.

[0272] The main body portion of the compression ring 65 is a compression ring 67, which is configured as a circular ring and matches the shape of the telescopic member outer peripheral portion 61A, and is used to contact the telescopic member outer peripheral portion 61A so that the telescopic member outer peripheral portion 61A is clamped between the compression ring 67 and the mounting structure 33B, i.e., the telescopic member outer peripheral portion 61A is compressed around the mouth of the mounting through hole 33C. Thus, the position of the telescopic member outer peripheral portion 61A is fixed, i.e., the relative position of the telescopic member outer peripheral portion 61A and the first opening 41 is fixed. The telescopic member outer peripheral portion 61A can then move in the axial direction DA in the central through hole of the compression ring 67. The compression ring 65 further includes a compression ring connecting portion 66, which is used to connect the mounting structure 33B, for example, detachably connect the mounting structure 33B. For example, the compression ring connecting portion 66 is arranged on the radially outer side of the inner peripheral surface of the compression ring 67 and is connected to the mounting structure 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 compression ring 65.

[0273] The elastic member 61 is preferably made of an elastic material. It is appreciated that, since the outer circumferential portion 61A of the elastic member 61 is connected to the periphery of the mounting hole 33C, the elastic member 61 can seal the mounting hole 33C, so as to isolate the switching cavity 82 from the ventilation cavity 84, and also isolate the switching cavity 82 from the exhaust cavity 83. The intermediate portion 61B of the elastic member 61 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 elastic material, the pleated structure 61C can be stretched and also can be restored. When the pleated structure 61C is stretched, the intermediate portion 61B of the elastic member 61 moves away from the outer circumferential portion 61A in the axial direction DA, and drives the movable partition 64 to move 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 restored, the intermediate portion 61B of the elastic member 61 moves toward the outer circumferential portion 61A in the axial direction DA, and drives the movable partition 64 to move toward the first opening 41 in the axial direction DA, so as to close the first opening 41. In other words, the movable partition 64 has a first open position and a first closed position, and the intermediate portion 61B of the elastic member 61 is configured to be stretchable in the axial direction DA, so as to correspond to the switching of the movable partition 64 between the first open position and the first closed position.

[0274] 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 one end of the partition connecting portion 64B away from the first opening 41 is connected to one side of the intermediate portion 61B of the elastic member 61 facing the first opening 41. The partition flange plate 64A is arranged on the outer circumferential side of the partition connecting portion 64B, and is used 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 hole 33C and is movable in the axial direction DA relative to the mounting hole 33C between the first open position and the first closed position in the mounting hole 33C.

[0275] The partition connecting portion 64B can have a smaller radial dimension, so as to save material. Correspondingly, the mounting hole 33C, the elastic member 61, and the compression ring 65 can all have smaller dimensions. The radial dimension of the partition flange plate 64A can be greater than the diameter of the mounting hole 33C, so that the partition flange plate 64A is always located on the side of the mounting hole 33C facing the first opening 41, i.e., the partition flange plate 64A is always located in the ventilation 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.

[0276] Preferably, the intermediate portion 61B of the extension member 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 intermediate portion 61B of the extension member is tightly fitted with the partition flange 64H. For example, the outer peripheral surface of the movable partition 64 is configured with a radially outward annular partition flange 64H extending in the circumferential direction, and the inner peripheral surface of the side of the intermediate portion 61B of the extension member facing the first opening 41 is configured with a second groove 61H extending in the circumferential direction, the groove mouth and groove bottom of the second groove 61H being opposite in the radial direction DR, for accommodating the annular flange 64H. The movable partition 64 is made of a hard material (plastic, metal, etc.), and the partition flange 64H is tightly fitted with the partition flange 64H by the elasticity of the extension member 61. For example, the inner peripheral surface of the side of the intermediate portion 61B of the extension member facing the first opening 41 is configured with a radially inward annular protrusion 61E extending in the circumferential direction, and the outer peripheral surface of the partition flange 64H is configured with a first groove 64E extending in the circumferential direction, the groove mouth and groove bottom of the first groove 64E being opposite in the radial direction DR, for accommodating the annular protrusion 61E. The movable partition 64 can press and deform the extension member 61 by the elasticity of the extension member 61, so that the annular protrusion 61E can enter the first groove 64E.

[0277] 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 provided 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 as an annular rib, for example, and can be located on the inner side of the annular wall 83B.

[0278] Further, the mounting structure 33B is provided with at least one guide post 48 extending in the axial direction DA toward 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 movable partition 64 is provided with at least one guide hole 64D for accommodating the guide post 48. The guide post 48 and the guide hole 64D are correspondingly arranged, and the guide post 48 is movable in the guide hole 64D in the axial direction DA. Thus, the guide post 48 and the guide hole 64D enable the movable 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 FIG. 8, the guide post 48 is located at the mouth of the mounting through-hole 33C. As shown in FIG. 9, the guide post 48 is located on the outer side of the annular wall 83B, i.e., outside the first opening 41, i.e., in the air passage cavity 84. Correspondingly, the guide hole 64D is also located on the outer side of the first opening 41. Figure 24 Figure 25 Figure 26

[0279] As​​​Figure 27 As shown, the partition flange plate 64A is further provided with a through hole 64F for the first air pipe 58 to pass through and a through hole 64G for the second air pipe 59 to pass through. The first air pipe 58 and the second air pipe 59 also have a guiding effect on the movement of the moving partition 64. From the perspective of the moving partition 64, the first air pipe 58 and the second air pipe 59 are located on the same side of the moving partition 64. Figure 24 As can be seen, the guide column 48, the first air pipe 58 and the second air pipe 59 are generally distributed on the same circle with the axis PA as the center.

[0280] As mentioned before, the steam exhaust third air path 113 and the cold air blowing fourth air path 114 of the cooking utensil 100 are simultaneously turned on, 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 cavity 84. In the exhaust air cavity 83 and the air 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.

[0281] 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 shown in Figure 15 and Figure 16 As shown, the exhaust air cavity bottom wall 83A is further provided with a first blocking piece 45 located between the exhaust air outlet 83D and the exhaust air inlet 83C. The first blocking piece 45 protrudes from the exhaust air cavity bottom wall 83A towards the inside of the exhaust air cavity 83, to a certain extent to prevent airflow from flowing between the exhaust air outlet 83D and the exhaust air inlet 83C. In other words, the first blocking piece 45 divides the exhaust air cavity 83 into a steam exhaust side 83E and a cold air communication side 83F. It can be understood that the exhaust air inlet 83C is located on the steam exhaust side 83E. The exhaust air outlet 83D is located on the cold air communication side 83F.

[0282] Further, the air cavity 84 is provided with a second blocking piece 49. The lower side of the second blocking piece 49 is connected to the lower cover bottom wall 34A and the lower cover side wall 34B, and the upper edge thereof conforms to the bottom shape of the lower partition 33, thereby generally dividing the air cavity 84 into two. Preferably, the second blocking piece 49 is located in the extension direction of the first blocking piece 45, that is, on the extension line of the first blocking piece 45, and cooperates with the first blocking piece 45 to separate the cold and hot airflows. Due to the radial arrangement of the exhaust air cavity 83 and the air cavity 84, two second blocking pieces 49 are provided in the air cavity 84, corresponding to the extension of the two side edges 46 of the first blocking piece 45 on the extension line of the first blocking piece 45.

[0283] As shown in Figure 7As 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.

[0284] like Figures 15 to 17 As shown, preferably, the two side edges 46 of the first blocking member 45 spaced apart in the width direction are connected to the annular wall 83B to more fully block the air inlet 83D and the air outlet 83C. Preferably, the middle portion 47 of the first blocking member 45 in the width direction protrudes from the annular wall 83B in the axial direction DA toward the movable partition assembly 36 to more fully block the air inlet 83D and the air outlet 83C. The partition connection portion 64B of the movable partition assembly 36 includes a receiving groove 64C (see Figure 28 ), the opening of the accommodating groove 64C faces the first opening 41, and the accommodating groove 64C is used to accommodate the middle part 47 of the first blocking member 45. In this way, the middle part 47 of the first blocking member 45 can have a certain height, which is conducive to isolating hot steam and ambient cold air. In order to adapt to the shape of the mounting through hole 33C, the partition connecting portion 64B is generally cylindrical in shape, so that the accommodating groove 64C is a circular groove. In order to extend the effective length of the middle part 47 of the first blocking member 45, the middle part 47 of the first blocking member 45 includes an arc-shaped plate, and the arc axis of the arc-shaped plate substantially coincides with the axis of the annular wall 83B. The curvature of the arc-shaped plate is, for example, 90 degrees to 180 degrees. The first blocking member 45, the annular wall 83B, the exhaust pipe 56, the third ventilation pipe 57 and the lower cover 34 of the device can be formed as one piece.

[0285] It can be understood that the accommodating groove 64C is also a part of the cavity space of the exhaust cavity 83.

[0286] Preferably, the axis of the exhaust port 83C is substantially coincident with the axis of the annular wall 83B, so that the steam can uniformly act on the moving partition 64. Preferably, the diameter of the exhaust port 83C is larger than the diameter of the air suction port 83D, which facilitates the steam to quickly enter the air suction and exhaust cavity 83 and occupy the third air path 113.

[0287] When the moving partition assembly 36 is in the first open position, the air path integration device 30 is in a blowing mode of air into the cooking cavity 22, the shell opening 55, the air passage cavity 84, the first opening 41, the air suction and exhaust cavity 83 (in particular, 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 a connected internal blowing air path (an air path for blowing cold air into the cooking space 22). Among them, the shell opening 55, the air passage cavity 84, the first opening 41 and the cold air communication side 83F form a connected cold air inlet air path. The air in the external environment enters the airflow generating device 14 through the air suction and exhaust cavity 84, the tubular connecting part 57 and the airflow inlet 15. At the same time, the air path integration device 30 is also in a steam exhaust mode, the exhaust pipe 56, the steam exhaust side 83E, the first opening 41, the air passage cavity 84 and the shell opening 55 form a steam exhaust air path. When the moving partition assembly 36 is in the first closed position, the air path integration device 30 is in an air suction mode for the cooking cavity 22, the air suction and exhaust cavity 83 is cut off from the air passage cavity 84, the exhaust pipe 56, the air suction and 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 (in particular, the switching cavity 82) can form a connected external air suction path (an air path for sucking negative pressure into the cooking space 22). The gas in the cooking cavity 22 enters the airflow generating device 14 through the exhaust pipe 56, the air suction and exhaust cavity 83, the tubular connecting part 57 and the airflow inlet 15.

[0288] In the present application, preferably, the axis 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 moving partition assembly 36 and the annular wall 83B are all the axis PA of the air path integration device 30.

[0289] 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 shell 38.

[0290] In other embodiments not shown in the present application, the cavity space of the exhaust cavity 83 is entirely provided by the moving partition assembly 36. For example, the lower cover 34 is not provided with the annular wall 83B, the reinforcing ribs 69 of the moving partition 64 of the moving partition assembly 36 form the side wall of the exhaust cavity 83, the receiving groove 64C forms the cavity space of the exhaust cavity 83, and the bottom wall 34A of the lower cover forms the bottom wall of the exhaust cavity 83. The first sealing member 91A is sleeved on the reinforcing rib 69.

[0291] The structure and installation of the floating sealing assembly 37 will be described below.

[0292] As mentioned above, the floating sealing assembly 37 extends through the second opening 42. As shown in Figures 30 to 32 the floating sealing 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 arranged opposite to each other 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 part 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 provides a limit position for the floating member 71 when the floating member 71 moves towards the floating member second end portion 71B side.

[0293] 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 configured as an elastic diaphragm, for example, which 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 part 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.

[0294] The blocking member 75 is configured as a circular (annular) elastic sealing member, for example, and the radial dimension of the circular outer periphery is 2-10 mm, for example.

[0295] The second end portion 71B of the floating member also extends out of the second opening. The floating seal assembly 37 further includes a stopper 77 connected to the second end portion 71B of the floating member, the stopper 77 having a radial dimension greater than that of the second opening 42. Thus, the stopper 77 provides a limit position for the floating member 71 when moving toward the first end portion 71A side of the floating member. The stopper 77 is, for example, fitted to the outer periphery of the second end portion 71B of the floating member. The stopper 77 can be configured as a stopper ring made of an elastic material, for example. The outer periphery of the second end portion 71B of the floating member is provided with a second mounting groove 71F extending in the circumferential direction, for example, for accommodating the stopper 77, i.e., for holding the stopper in the second mounting groove 71F.

[0296] The floating member 71 further includes a floating member connecting portion 71C between the first end portion 71A and the second end portion 71B of the floating member. The floating member connecting portion 71C extends through the second opening 42 and is movable in the axial direction DA in the second opening 42 between a second open position and a second closed position. The floating member connecting portion 71C has a gap with the inner peripheral surface of the second opening 42. The floating seal assembly 37 is in the second closed position when the stopper 75 contacts the mouth portion of the second opening 42 on one side, for example. The floating seal assembly 37 is in the second open position when the stopper 75 is away from the partition 32A. In the second open position, the floating member connecting portion 71C is located 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 open. In other words, the stopper 75 is connected to the floating member 71 and moves in synchronization with the floating member 71, and the stopper 75 is used to open the gap when the floating member 71 is in the second open position, and to close the gap when the floating member 71 is in the second closed position.

[0297] The radial dimension of the floating member connecting portion 71C is smaller than that of the second opening 42, for example, so that the floating member connecting portion 71C is in clearance fit with the second opening 42. The radial dimension of the floating member connecting portion 71C is 0.1 mm to 10 mm smaller than that of the second opening 42. More preferably, the radial dimension of the floating member connecting portion 71C is 0.2 mm to 2 mm smaller than that of the second opening. Alternatively, the outer peripheral surface of the floating member connecting portion 71C can be provided with at least one third groove extending in the axial direction DA, so that the floating member connecting portion 71C has a gap with the inner peripheral surface of the second opening 42.

[0298] In the first embodiment, the axial direction DA is the up-down direction, the floating member first end portion 71A is located above the floating member second end portion 71B, the floating member first end portion 71A is located above the second opening 42, and the floating member second end portion 71B is located below the second opening 42. The floating member second end portion 71B is configured to be acted upon by the movable partition assembly 36 to move upward from the second closed position to the second open position. The floating seal assembly 37 is configured to move downward from the second open position to the second closed position by its own gravity. The mass (preset weight) of the floating seal assembly 37 is, for example, 1 g to 50 g. More preferably, the mass of the floating seal assembly 37 is, for example, 5 g to 20 g.

[0299] As mentioned above, the preset weight of the floating seal assembly 37 needs to be adapted to the deformation capacity of the second one-way valve 35. It can be understood that when the 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, so that the movable partition 64 is separated from the first seal 91A on the annular wall 83B. When the steam pressure is not enough 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 is attached to the first seal 91A, so that the cooking cavity 22 has a certain pressure (for example, 3 kPa to 4 kPa). Therefore, the weight of the floating seal assembly 37 can be adapted to the micro-pressure of the cooking cavity 22. For example, the floating seal assembly 37 further comprises a counterweight 78, which is arranged at the floating member first end portion 71A and located above the blocking member 75. The total weight of the floating seal assembly 37 can be adjusted by adjusting the weight of the counterweight 78.

[0300] The force applied by the steam to the movable partition assembly 36 is related to the effective area of the movable partition 64. The effective area of the movable partition 64 is the area of the projection of the part exposed to the exhaust cavity 83 in the axial direction DA, or the area of the projection of the part of the movable partition 64 that can be contacted by the steam when the movable partition assembly 36 is in the first closed position. When the movable partition assembly 36 is in the first closed position, the effective area of the movable partition 64 that can be contacted by the steam is the area of the projection of the part of the movable partition 64 located inside the annular wall 83B in the axial direction DA. 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, or 20 mm to 49 mm, or 20 mm to 35 mm. The size of the first seal 91A matches the diameter of the annular wall 83B.

[0301] The effective area of the movable partition 64 that receives the steam pressure can also be understood as the cross-sectional area of the first opening 41. Preferably, the cross-sectional area of the first opening 41 is 3 cm2 to 20 cm 2 More preferably, 3 cm 2 to 10 cm 2 .

[0302] The first vent pipe 58 is located outside the annular wall 83B, with the center point of the first vent pipe 58 being, for example, 17.5 mm to 60 mm, preferably 22.5 mm to 35 mm, away from the midline point (axis PA) of the annular wall 83B.

[0303] The second vent pipe 59 is located outside the annular wall 83B, with the center point of the second vent pipe 59 being, for example, 12.5 mm to 55 mm, preferably 17.5 mm to 30 mm, away from the midline point (axis PA) of the annular wall 83B.

[0304] In an embodiment not shown in the present application, the gas path integration device is configured such that the second closed position is above the second open position, and the floating sealing assembly 37 is moved upward by an external force, for example, steam pressure, to block the gas flow passage, and is moved downward by its own gravity to open the gas flow passage. In such an embodiment, the blocking piece 75 is arranged at the second end 71B of the floating piece. In such an embodiment, the floating sealing assembly 37 can still change the gas path passage in the gas path integration device, which, in combination with other components in the device cavity, can make the gas path integration device have multiple functions.

[0305] The following describes other embodiments of the present application, in which the same contents as the first embodiment will not be described again.

[0306] In Figure 33 the second embodiment shown and Figure 34 the third embodiment shown, the moving partition assembly 36 (for example, the moving partition 64 thereof) is connected with an elastic piece, for example, a spring, and is moved from the first open position to the first closed position under the action of the spring.

[0307] As Figure 33 shown, the second spring 92B is sleeved on the outer periphery of the guide column 48, one end of the second spring 92B abuts against the mounting structure 33B of the lower partition 33, and the other end abuts against the partition flange plate 64A. When the moving partition 64 is pushed open by steam, the second spring 92B is compressed. When the steam pressure is insufficient, the second spring 92B restores, and pushes the moving partition 64 back to the first closed position.

[0308] As Figure 34As shown, the first spring 92A extends in the axial direction DA, with one end connected to the exhaust chamber bottom wall 83A and the other end connected to the movable partition 64. For example, the first spring 92A extends into the receiving groove 64C and connects to the partition connection portion 64B. When the movable partition 64 is pushed open by steam, the first spring 92A is stretched. When the steam pressure is insufficient, the first spring 92A returns to its original position, pulling the movable partition 64 back to the first closed position.

[0309] like Figure 35 As shown, in the fourth embodiment, the movable partition 64 is provided with a first magnet 93A, and a second magnet 93B is provided in the device cavity 39, for example, on the inner side of the bottom wall 34A of the lower cover. The magnetic force between the first magnet 93A and the second magnet 93B attracts each other, and the direction of the magnetic force is parallel to the axial direction DA. Since the internal structure of the ventilation cavity 84 is relatively simple, the second magnet 93B is provided on the bottom wall 84A of the ventilation cavity, that is, on the outside of the annular wall 83B. Accordingly, the first magnet 93A is provided on the partition flange plate 64A at a position outside the first opening 41. Multiple pairs (for example, 2-4 pairs) of the first magnet 93A and the second magnet 93B can be evenly distributed along the circumferential direction.

[0310] In the second to fourth embodiments, the movable partition assembly 36 no longer relies on the weight of the floating seal assembly 37 to move from the first open position to the first closed position, but instead relies on the force of other return components. Once the movable partition assembly 36 returns, the floating seal assembly 37 can fall back under its own weight. In these embodiments, the force driving the movable partition assembly 36 toward the first open position is relatively greater, allowing the pressure in the cooking chamber 22 to be relatively higher before steam is exhausted.

[0311] exist Figure 36 In the fifth embodiment shown, the floating seal assembly 37 moves from the second open position to the second closed position under the action of a third spring 92C. The third spring 92C is located between the top cover wall 31A (i.e., the device housing 38) and the first end 71A of the floating member 71. When steam passes through the movable diaphragm assembly, pushing the floating seal assembly 37 to the second open position, the third spring 92C is compressed. When the steam pressure decreases, the third spring 92C returns to its original position, pushing the floating seal assembly 37 back in the opposite direction, and through the floating seal assembly 37, pushing the movable diaphragm assembly 36 back to the first closed position. It will be appreciated that in this embodiment, the axial direction DA need not be in the up-down direction.

[0312] Figure 37 The sixth embodiment shown is similar to the fifth embodiment and also adopts an elastic member to act on the floating seal assembly 37, wherein the spring is replaced by a flexible member 96, which is, for example, an elastic ring.

[0313] In the fifth and sixth embodiments, the mobile partition assembly 36 moves the floating seal assembly 37 towards the second open position when the mobile partition assembly 36 moves towards the first open position; the floating seal assembly 37 moves the mobile partition assembly 36 towards the first closed position when the floating seal assembly 37 moves towards the second closed position. When the axial direction DA is the up-down direction, the floating seal assembly 37 can reduce the dead weight due to the elastic member applying a force to the floating seal assembly 37 to seal the second opening 42. The third spring 92C and the flexible member 96 can also be considered as part of the floating seal assembly 37.

[0314] In the fifth and sixth embodiments, the elastic member applies a preset pressure to the floating seal assembly, and the elastic member moves the floating seal assembly 37 to the second closed position when the air pressure in the switching chamber 82 is less than the preset pressure. It can be understood that in these two embodiments, the axial direction DA can not be the up-down direction because the floating seal assembly 37 no longer relies on its own gravity to close the second opening 42. At this time, the counterweight effect of the counterweight member 78 is weakened, and it is more suitable to serve as an additional limiting member (similar to the limiting member 77), i.e., to prevent the floating member 71 from moving out of the second opening along the axial direction DA. The additional limiting member is located on the side of the blocking member 75 away from the second opening 42, and the radial dimension of the additional limiting member is greater than the inner diameter of the second opening. The elastic member is arranged on the side of the additional limiting member away from the blocking member 75.

[0315] In Figure 38 In the seventh embodiment shown in the drawings, the elastic member is replaced by a temperature-sensitive deforming component 95, such as a memory spring or a bimetallic strip. In this embodiment, the axial direction DA is the up-down direction. The temperature-sensitive deforming component 95 is arranged, for example, on the side of the blocking member 75 facing the second opening 42. At low temperatures, the temperature-sensitive deforming component 95 is in a contracted state, and the floating seal assembly 37 relies on its own gravity to allow the blocking member 75 to seal the second opening 42. When the cooking process enters the boiling maintenance process, the various parts of the cooking utensil 100 will be heated, and the air path integration device 30 will also be heated. After the temperature-sensitive deforming component 95 is heated, it automatically deforms and expands, pushing the blocking member 75 away from the second opening 42. After the temperature decreases, the memory spring restores its elasticity and is compressed by the counterweight member 78, so that the blocking member 75 can cover the mouth of the second opening 42. After the temperature decreases, the bimetallic strip returns to its original state, so that the floating seal assembly 37 can fall back.

[0316] In Figure 39In the eighth embodiment shown, the floating seal assembly 37 is moved between the second open position and the second closed position by a driving assembly 130 of the cooking utensil. The driving assembly 130 includes, for example, a lever 131 and a driving device 132 that applies force to one end of the lever 131, and the other end of the lever 131 applies force to the floating seal assembly 37. In this embodiment, the driving device 132 can be electrically connected to the control device, so that the floating seal assembly 37 can be positioned in the corresponding position in the corresponding cooking process in coordination with the control of the cooking process in the control software. For example, when the control software confirms that the cooking process enters the boiling-maintaining process, the driving device 132 drives the lever 131 to act, so that the floating seal assembly 37 is positioned in the second open position; when the control software confirms that the cooking process enters the heat-keeping process, the driving device 132 drives the lever 131 to act, so that the floating seal assembly 37 is positioned in the second closed position. When the floating seal assembly 37 moves toward the second closed position, the floating seal assembly 37 moves the moving partition assembly 36 toward the first closed position. Thus, the axial direction DA can not be the up-down direction.

[0317] In Figure 40 In the ninth embodiment shown, the driving assembly 130 is replaced by an electromagnet, and the floating seal assembly 37 is configured to include ferromagnetic material. The electromagnet is provided, for example, on the inner side of the top wall 31A of the upper cover. The electromagnet is connected to a control circuit, and the control circuit is connected to the control device, so that the on-off of the electromagnet can be coordinated with the cooking process. For example, when the control software confirms that the cooking process enters the boiling-maintaining process, the control circuit is turned on, the electromagnet is powered on, and the floating seal assembly 37 is magnetically attracted to the second open position; when the control software confirms that the cooking process enters the heat-keeping process, the control circuit is turned off, the electromagnet is powered off, and the floating seal assembly 37 moves to the second closed position under the action of its own gravity. That is, the axial direction DA is the up-down direction. When the floating seal assembly 37 moves toward the second closed position, the floating seal assembly 37 moves the moving partition assembly 36 toward the first closed position.

[0318] The second to ninth embodiments introduce various ways of closing the first opening 41 by the moving partition assembly 36, and various ways of opening and closing the second opening 42 by the floating seal assembly 37. Those skilled in the art can reasonably combine different embodiments to more specifically control the movement of the moving partition assembly 36 and the floating seal assembly 37 according to specific needs. It can be understood that when the floating seal assembly 37 does not need to return to the second closed position by gravity, the axial direction of the second opening 42 can not be the up-down direction. When the floating seal assembly 37 does not need to move to the second open position by the action of the moving partition assembly 36, and the moving partition assembly 36 does not need to return to the first closed position by the action of the floating seal assembly 37, the moving partition assembly 36 and the floating seal assembly 37 can be independently provided.

[0319] exist Figure 41 In the tenth embodiment shown, the second one-way valve 35 is configured as a gravity ball. The axial direction of the third opening 43 is the vertical direction. The gravity ball sits on 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.

[0320] exist Figure 42 In the eleventh embodiment shown, the second one-way valve 35 is configured as a pneumatic float. The axial direction of the third opening 43 is in the up-down direction. The pneumatic float rests on the third opening 43 by its own gravity to close the third opening 43, and can be lifted by the airflow from the airflow generating device 14 to open the third opening 43.

[0321] exist Figures 43 to 48 In the twelfth embodiment shown, the floating seal assembly 37 is additionally provided with an elastic member 79. Figures 43 to 45 As shown, the elastic member 79 is used to connect to the second end portion 71B of the floating member, for example, it is arranged between the second end portion 71B of the floating member and the partition 32A. The elastic member 79 is configured as a spring, for example, and is sleeved on the outer periphery of the floating member 71. When the spring is configured as a compression spring, the floating member 71 moves from the second open position to the second closed position under the action of the elastic member 79. That is, the floating member 71 does not need to rely on its own gravity to return to the second closed position. Accordingly, the axial direction DA may not be the up and down direction. At this time, the counterweight effect of the counterweight member 78 is weakened, and it is more suitable to serve as an additional limit member (similar to the limit member 77), that is, to prevent the floating member 71 from moving along the axial direction DA and falling out of the second opening. The additional limit member is located on the side of the blocking member 75 facing away from the second opening 42, and the radial dimension of the additional limit member is larger than the inner diameter of the second opening.

[0322] Specifically, the elastic member 79 can be disposed between the second end 71B of the floating member and the passage opening of the second opening 42 near the second end 71B, for example, between the second end 71B and the partition 32A. Furthermore, the elastic member 79 can be disposed between the passage opening of the second opening 42 near the second end 71B and the stopper 77, for example, between the partition 32A and the stopper 77. Because the stopper 77 needs to abut against the elastic member 79, a rigid component such as a retaining ring, a retaining spring, or a pin can be selected. The stopper 77 is sleeved onto the outer circumference of the second end 71B of the floating member or is configured as a local protrusion on the outer surface of the second end 71B. This ensures that the radial dimension of the floating seal assembly 37 at the stopper 77 along the second opening 42 is greater than the inner diameter of the second opening.

[0323] like Figure 43 and Figure 45As shown, the first sealing member 91A may also be provided on the movable partition 64 , for example, on the reinforcing rib 69 of the movable partition 64 .

[0324] like Figure 43 and Figure 46 As shown, the pressing ring connection portion 66 of the pressing ring 65 of the movable partition assembly 36 can be engaged and connected with the mounting structure 33B of the lower partition 33. For example, the pressing ring 65 is provided with a rib 68 at the pressing ring connection portion 66. The mounting structure 33B is provided with a slot 33E for accommodating the rib 68. The rib 68 is provided, for example, on the pressing ring 67 and protrudes outward in the radial direction of the pressing ring 67. The notch and the bottom of the slot 33E are relative to each other along the circumferential direction DC of the mounting through hole 33C (the circumferential direction DC is also the circumferential direction corresponding to the axial direction DA). When installing the pressing ring 65, the pressing ring 65 is pressed against the telescopic part 61, and then the pressing ring 65 is rotated in the opposite direction along the circumference of the pressing ring 65 so that the rib 68 is screwed into the slot 33E. The slot 33E limits the pressing ring 65 in the axial direction DA, and also limits the telescopic part 61 in the axial direction DA.

[0325] To ensure secure installation of the telescopic member 61, multiple pressing ring connecting portions 66 are typically provided. The pressing ring connecting portions 66 can be connected to the mounting structure 33B using fasteners (e.g., bolts) and / or a snap-fit ​​connection. As will be appreciated, a snap-fit ​​connection is more convenient than a fastener connection. Therefore, a fastener can be used on one pressing ring connecting portion 66, while snap-fit ​​connections can be used on the other pressing ring connecting portions 66.

[0326] like Figure 45 and Figure 46 As shown, the second vent pipe 59 is integrally formed with the wall of the combination chamber 86, for example, the second vent pipe 59 is integrally formed with the wall of the switching chamber 82, for example, the second vent pipe 59 is integrally formed with the lower partition 33. Thus, the number of parts of the gas path integration device 30 is reduced, and assembly is easier. In this embodiment, as shown in FIG. Figure 46 and Figure 47 As shown, the upper cover 31 and the lower cover 34 are connected by, for example, a fourth rotating buckle 94D. The upper cover 31 is no longer engaged with the upper partition 32, and the lower cover is no longer engaged with the lower partition 33. The upper cover 31 and the lower cover 34 directly sandwich the upper partition 32 and the lower partition 33. After the pre-assembled components 53 and 54 are assembled, the assembly operation of the gas path integration device 30 will be simpler. Figure 48 It can be seen that the through hole 34C of the lower cover 34 of the device for allowing the first vent pipe 58 to pass through does not need to reserve a rotation amount for the first vent pipe 58 (compare Figure 15 and Figure 16 ), that is, it does not need to be set as a long hole.

[0327] like Figure 45As shown, the sidewall 34B of the device lower cover 34 is configured in a tapered inward shape, which allows the lower cover sidewall 34B to support the lower partition 33. The lower partition 33 supports the upper partition 32. Dimensional errors in the axial direction DA can be absorbed by the elasticity of the second and third seals 91B and 91C at the two ends of the upper partition 32.

[0328] The baffle connecting portion 32D of the upper partition 32 is configured as a tubular body, with a first end (e.g. the upper end in the figure) in communication with the blowing cavity 81, and a second end (e.g. the lower end in the figure) in contact connection with the first end (e.g. the upper end in the figure) of the second air passage tube 59, for example by way of a fifth seal 91E.

[0329] The upper partition 32 is placed directly on the lower partition 33. In order to facilitate alignment of the baffle connecting portion 32D with the second air passage tube 59, the upper partition 32 is provided with at least one first positioning portion 97, which is located in the switching cavity 82. At least one second positioning portion 98 is also provided in the switching cavity 82, corresponding to the first positioning portion 97. When the first positioning portion 97 is connected with the corresponding second positioning portion 98, the second end of the tubular body of the baffle connecting portion 32D is in contact with the first end of the second air passage tube 59. The second positioning portion 98 is provided, for example, on the lower partition 33.

[0330] Specifically, the first positioning portion 97 and the second positioning portion 98 can be inserted into each other, for example, one of them is inserted into the other along the axial direction DA (i.e. the extension direction of the second air passage tube 59). For example, one of them is configured as a positioning hole 98A, and the other is configured as a positioning column 97A for insertion into the positioning hole 98A. Alternatively, one of them is configured as a positioning slot 98B, and the other is configured as a positioning rib 97B for insertion into the positioning slot 98B. In the illustrated embodiment, the first positioning portion 97 is inserted into the second positioning portion 98. Of course, the second positioning portion 98 can also be inserted into the first positioning portion 97. Alternatively, in the case of multiple first positioning portions 97 and multiple second positioning portions 98, both the first positioning portion 97 inserted into the second positioning portion 98 and the second positioning portion 98 inserted into the first positioning portion 97 can be included.

[0331] Preferably, the first positioning portion 97 and the second positioning portion 98 are configured as a foolproof structure, so as to ensure that the user can align the upper partition 32 with the lower partition 33 (specifically, align the baffle connecting portion 32D with the second air passage tube 59) before contact. For example, as shown in the figure, the first positioning portion 97 and the second positioning portion 98 are configured as a foolproof structure, so as to ensure that the user can align the upper partition 32 with the lower partition 33 (specifically, align the baffle connecting portion 32D with the second air passage tube 59) before contact. Figure 46 and Figure 47As shown, positioning holes 98A and positioning posts 97A are arranged on one side of the switching cavity 82, and positioning grooves 98B and positioning ribs 97B are arranged on the opposite side. If the positioning holes 98A and the positioning posts 97A are not aligned (at the same time, the positioning grooves 98B and the positioning ribs 97B are not aligned) when the upper partition 32 is buckled with the lower partition 33, at least one of the positioning holes 98A, the positioning posts 97A, the positioning grooves 98B and the positioning ribs 97B will be in contact with other structures in the switching cavity 82 to form an interference, so that the upper partition 32 and the lower partition 33 cannot be in contact. Therefore, the user adjusts the relative angular position between the upper partition 32 and the lower partition 33 until the positioning holes 98A and the positioning posts 97A are aligned, and at the same time, the positioning grooves 98B and the positioning ribs 97B are aligned, so that the upper partition 32 and the lower partition 33 can be close to each other in the axial direction DA until they are in contact.

[0332] Of course, the positioning connection mode of the first positioning part 97 and the second positioning part 98 can also be other modes. The foolproof design of buckling the upper partition 32 and the lower partition 33 can also be other modes.

[0333] Those skilled in the art can reasonably combine the different embodiments described above.

[0334] Of course, the air path integration device 30 can also be constructed in other forms to integrate the air paths of suction negative pressure, steam exhaust and cold air blowing.

[0335] The processes and steps described in all the preferred embodiments described above are only examples. Unless adverse effects occur, various processing operations can be performed in different orders from the above processes. The order of steps of the above processes can also be added, combined or deleted according to actual needs.

[0336] 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 equivalents.

[0337] The term "attached" or "attaching" as used herein includes configurations wherein an element is directly secured to another element by affixing the element directly to the other element; configurations wherein the element is indirectly secured to the other element by affixing the element to an intermediate member that in turn is affixed to the other element; and configurations wherein one element is integral with the other element, i.e., one element is essentially a part of the other element. The definition also applies to words of similar meaning, such as "connected", "coupled", "joined", "adhered", "fixed", and their derivatives. Finally, relative terms as used herein such as "basically", "approximately" and "substantially" mean an amount of deviation that is minor enough to not change the final result significantly.

[0338] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The features described herein in one embodiment can be applied to another embodiment, mutatis mutandis, unless the features are not applicable or are otherwise stated.

[0339] The present application has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and illustration, and are not intended to limit the present application to the scope of the described embodiments. Furthermore, those skilled in the art can understand that the present application is not limited to the above embodiments, and that more various modifications and changes can be made according to the teachings of the present application, and that such modifications and changes fall within the scope of the present application claimed.

Claims

1. A floating sealing assembly for opening and closing an air flow channel in an air flow integration device of a cooking appliance, characterized in that: The floating seal assembly comprises: a floating member configured to extend through the airflow passage and be movable in the airflow passage between an open position and a closed position, the floating member comprising a first floating member end portion and a second floating member end portion disposed opposite to each other in an axial direction, a gap being defined between at least a portion of the floating member and an inner peripheral surface of the airflow passage; a blocking member connected to the first end of the floating member and moving synchronously with the floating member, for opening the gap when the floating member is in the open position and blocking the gap when the floating member is in the closed position; and an elastic member, used to be connected to the first end portion of the floating member or the second end portion of the floating member, The floating member is configured to move along the axial direction under the action of the thrust to be located at the open position, and to move along the axial direction under the action of the elastic member to be located at the closed position.

2. The floating seal assembly according to claim 1, wherein: The blocking member comprises an elastic material.

3. The floating seal assembly according to claim 1, wherein: The first end portion of the floating member is used to extend out of the airflow channel, and the blocking member is used to cover the gap when the floating member is located in the closed position.

4. The floating seal assembly according to claim 3, wherein: The radial dimension of the blocking member is 2-10 mm.

5. The floating seal assembly according to claim 1, wherein: The blocking member is provided with a mounting hole, and the first end portion of the floating member passes through the mounting hole, so that the blocking member is sleeved on the outer periphery of the first end portion of the floating member.

6. The floating seal assembly according to claim 5, wherein: A first mounting groove extending in a circumferential direction is provided on the outer periphery of the first end portion of the floating member for accommodating a portion of the blocking member located around the mouth of the mounting hole.

7. The floating seal assembly according to claim 1, wherein: The floating seal assembly further includes an additional limiting member, which is arranged at the first end of the floating member and located on the side of the blocking member facing away from the air flow channel. The radial dimension of the additional limiting member is greater than the inner diameter of the air flow channel.

8. The floating seal assembly according to claim 7, wherein: The elastic member is used to be connected to a side of the additional limiting member facing away from the blocking member.

9. The floating seal assembly according to claim 1, wherein: The second end of the floating member is used to extend out of the airflow channel, and the elastic member is used to be arranged between the second end of the floating member and the channel opening of the airflow channel close to the second end of the floating member.

10. The floating seal assembly according to claim 9, wherein: The floating seal assembly further includes a limiting member disposed at the second end of the floating member. A radial dimension of the floating seal assembly at the limiting member along the airflow channel is larger than an inner diameter of the airflow channel.

11. The floating seal assembly according to claim 10, wherein: The elastic member is used to be arranged between the passage opening and the limiting member.

12. The floating seal assembly according to claim 10, wherein: The limiting member is sleeved on the outer periphery of the second end portion of the floating member, or is constructed as a local protrusion on the outer surface of the second end portion of the floating member.

13. The floating seal assembly according to claim 12, wherein: The limiting member is configured as a limiting ring, and a second mounting groove extending in a circumferential direction is provided on the outer periphery of the second end portion of the floating member for accommodating the limiting ring.

14. The floating seal assembly according to claim 9, wherein: The floating member further includes a floating member connecting portion located between the first end portion of the floating member and the second end portion of the floating member, and a gap is formed between the floating member connecting portion and the inner peripheral surface of the air flow channel.

15. The floating seal assembly according to claim 14, wherein: The outer peripheral surface of the floating member connecting portion is provided with at least one third groove extending in the axial direction, so that a gap exists between the floating member connecting portion and the inner peripheral surface of the air flow channel; and / or The radial dimension of the floating member connecting portion is smaller than the radial dimension of the airflow channel, and the floating member connecting portion is used for clearance fit with the airflow channel.

16. The floating seal assembly according to any one of claims 1 to 15, characterized in that: The elastic member is configured as a spring.

17. A gas path integration device for a cooking appliance, characterized in that: include: a device housing, the device housing enclosing an inner cavity of the device; a partition disposed in the inner cavity of the device, the partition being provided with an opening to form an airflow channel for allowing airflow to pass through; and The floating seal assembly according to any one of claims 1 to 16, wherein the floating member extends through the airflow channel and is movable in the airflow channel, a gap is defined between at least a portion of the floating member and an inner peripheral surface of the airflow channel, and the elastic member is disposed between the device housing and a first end portion of the floating member, or between the partition plate and a second end portion of the floating member.

18. The gas path integration device according to claim 17, characterized in that: The inner cavity of the device is used to communicate with the cooking cavity. The gas path integration device also includes an action component. The thrust refers to the force of the action component moving under the action of the steam pressure in the cooking cavity and pushing the floating part.

19. The gas path integration device according to claim 17 or 18, characterized in that: The floating member further includes a floating member connecting portion located between the first end portion and the second end portion of the floating member, wherein the radial dimension of the floating member connecting portion is smaller than the radial dimension of the airflow channel, and the floating member connecting portion is loosely matched with the airflow channel.

20. The gas path integration device according to claim 19, characterized in that: The radial dimension of the floating member connection portion is 0.1 mm to 10 mm smaller than the radial dimension of the air flow channel.

21. The gas path integration device according to claim 20, characterized in that: The radial dimension of the floating member connection portion is 0.2 mm to 2 mm smaller than the radial dimension of the air flow channel.

22. 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 17 to 21, Wherein, the inner cavity of the device is communicated with the cooking cavity.

23. The cooking appliance according to claim 22, wherein It also includes an airflow generating device, which includes an airflow inlet and an airflow outlet. The inner cavity of the device is connected to the airflow inlet and the airflow outlet, and the airflow channel is arranged on the air path connecting the airflow inlet and the airflow outlet.

24. The cooking appliance according to claim 23, wherein The cooking appliance further comprises: a pot body, wherein the pot body is provided with the cooking cavity; and The cover body is used to cover the pot body, and the airflow generating device and the air path integration device are arranged on the cover body, wherein when the cover body covers the pot body, the inner cavity of the device is connected with the cooking cavity.

Images