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 with the axial direction being the vertical direction. The floating sealing assembly comprises a floating piece and a plugging piece. The floating part extends to penetrate through the airflow channel and can move up and down 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, the first floating part end is located above the second floating part end, and a gap is formed between at least part of the floating part and the inner circumferential surface of the airflow channel. The blocking piece is connected to the floating piece and used for opening the gap when the floating piece is located at the opening position and blocking the gap when the floating piece is located at the closing position. The floating piece moves upwards to be located in one of the open position and the closed position under the action of external force and moves downwards to be located in the other of the open position and the closed position under the action of gravity of the floating sealing assembly. The mass of the floating sealing assembly is 1 g to 628 g.

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 use air blowing into the pot to achieve fast cooking, some use air pumps 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 function 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 an air flow passage in a gas path integration device of a cooking appliance, the air flow passage has an axial direction being upward and downward direction, the floating sealing assembly comprises:

[0006] a floating member for extending through the air flow passage and being upward and downward movable between an open position and a closed position, the floating member comprises a floating member first end portion and a floating member second end portion oppositely arranged along the axial direction, the floating member first end portion is for being located above the floating member second end portion, at least a part of the floating member has a gap with an inner circumferential surface of the air flow passage; and

[0007] a plugging member connected to the floating member and synchronously movable with the floating member, for opening the gap when the floating member is located at the open position, and plugging the gap when the floating member is located at the closed position,

[0008] The floating member is used to move upward to one of the open position and the closed position under the action of the external force, and move downward to the other of the open position and the closed position under the action of the gravity of the floating sealing assembly, and the mass of the floating sealing assembly is 1g to 50g.

[0009] According to the present application, the floating sealing assembly opens (or blocks) the airflow passage under the action of the external force, and falls back to block (or open) the airflow passage under the action of the gravity of the floating sealing assembly. 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 weight of the floating sealing assembly matches the external force, for example, can match the pressure of the steam generated by cooking, and moves under the action of the steam pressure to change the gas path.

[0010] The second aspect of the present application provides a floating sealing assembly for opening and closing an airflow passage in a gas path integration device of a cooking appliance, the airflow passage has an axial direction being upward and downward direction, and the floating sealing assembly comprises:

[0011] a floating member extending through the airflow passage and being upward and downward movable between an open position and a closed position, the floating member comprises a floating member first end portion and a floating member second end portion oppositely arranged along the axial direction, the floating member first end portion is used to be located above the floating member second end portion, and at least part of the floating member has a gap with an inner circumferential surface of the airflow passage; and

[0012] a blocking member connected to the floating member and synchronously movable with the floating member, used to open the gap when the floating member is located at the open position, and block the gap when the floating member is located at the closed position,

[0013] The floating member is used to move upward to one of the open position and the closed position under the action of the external force, and move downward to the other of the open position and the closed position under the action of the gravity of the floating sealing assembly, and the mass of the floating sealing assembly is 3g to 628g.

[0014] According to the present application, the floating sealing assembly opens (or blocks) the airflow passage under the action of the external force, and falls back to block (or open) the airflow passage under the action of the gravity of the floating sealing assembly. 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 weight of the floating sealing assembly matches the external force, for example, can match the pressure of the steam generated by cooking, and moves under the action of the steam pressure to change the gas path.

[0015] Optionally, the blocking member comprises an elastic material.

[0016] According to the present application, the blocking member comprises an elastic material, so that the blocking member can seal the air flow passage.

[0017] Optionally, the blocking member is connected to the first end of the floating member, and the open position is above the closed position.

[0018] According to the present application, the floating sealing assembly moves upward to open the air flow passage and moves downward to block the air flow passage.

[0019] Optionally, the first end of the floating member is used to extend out of the air flow passage to be above the air flow passage, and the blocking member is used to cover the gap above the air flow passage when the floating member is in the closed position.

[0020] According to the present application, the method for blocking the gap of the air flow passage by the blocking member is simple.

[0021] Optionally, the radial dimension of the blocking member is 2-10mm.

[0022] According to the present application, the radial dimension of the blocking member can be flexibly set.

[0023] Optionally, the blocking member is provided with a mounting hole, and the first end of the floating member passes through the mounting hole, so that the blocking member is sleeved on the outer periphery of the first end of the floating member.

[0024] According to the present application, the connection mode of the blocking member and the floating member is simple.

[0025] Optionally, the outer periphery of the first end 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 blocking member located around the mouth of the mounting hole.

[0026] According to the present application, the relative position of the blocking member and the floating member is stable.

[0027] Optionally, the floating sealing assembly further comprises a counterweight, which is arranged at the first end of the floating member and above the blocking member.

[0028] According to the present application, the weight of the floating sealing assembly can be adjusted by adjusting the weight of the counterweight.

[0029] Optionally, the second end of the floating member is used to extend out of the air flow passage.

[0030] According to the present application, the second end of the floating member is used to be located outside the air flow passage, so as to facilitate the external force acting on the second end of the floating member.

[0031] Optionally, the floating sealing assembly further comprises a limiting member connected to the second end of the floating member, and a radial dimension of the limiting member is greater than a radial dimension of the airflow channel.

[0032] According to the application, the limiting member is used to prevent the floating member from being pulled out of the airflow channel.

[0033] Optionally, the limiting member is sleeved on an outer periphery of the second end of the floating member.

[0034] According to the application, the connection between the limiting member and the floating member is simple.

[0035] Optionally, the limiting member is configured as a limiting ring made of elastic material.

[0036] According to the application, the limiting member is low in cost, stable in formation, and simple to install.

[0037] Optionally, an outer periphery of the second end of the floating member is provided with a second installation groove extending in a circumferential direction, used for accommodating the limiting ring.

[0038] According to the application, the relative position between the limiting member and the floating member is stable.

[0039] 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 a gap is formed between the floating member connecting portion and an inner peripheral surface of the airflow channel.

[0040] According to the application, when the floating member moves up and down, the floating member connecting portion is always located in the airflow channel, and the gap between the floating member connecting portion and the inner peripheral surface of the airflow channel can ensure the airflow to flow through the airflow channel.

[0041] Optionally, an outer peripheral surface of the floating member connecting portion is provided with at least one third groove extending in an axial direction, so that the gap is formed between the floating member connecting portion and the inner peripheral surface of the airflow channel.

[0042] According to the application, the third groove is used to make the airflow flow through the airflow channel.

[0043] Optionally, a radial dimension of the floating member connecting portion is less than a radial dimension of the airflow channel, and the floating member connecting portion is used to gap-fit with the airflow channel.

[0044] According to the application, the method of forming the gap between the floating member connecting portion and the airflow channel is simple.

[0045] Optionally, the floating sealing assembly has a mass of 5g to 20g.

[0046] Optionally, the floating sealing assembly has a mass of 3g to 200g.

[0047] According to the present application, the quality of the floating sealing assembly can be flexibly set, facilitating product material selection, and being flexible to adapt to different specific needs.

[0048] The third aspect of the present application provides a gas path integration device for a cooking appliance, comprising:

[0049] A device housing enclosing a device inner cavity;

[0050] An airflow passage arranged in the device inner cavity for passing airflow, the axial direction of the airflow passage being the up-down direction; and

[0051] The floating sealing assembly according to any one of the first aspect and the second aspect, wherein the floating member extends through the airflow passage and is movable up and down in the airflow passage, and a gap is formed between at least part of the floating member and the inner peripheral surface of the airflow passage.

[0052] According to the present application, the floating sealing assembly opens (or blocks) the airflow passage under the action of external force, and falls back to block (or open) the airflow passage under the action of its own gravity. 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.

[0053] Optionally, the device inner cavity is configured to communicate with a cooking cavity, and the gas path integration device further comprises an acting component configured to connect the second end of the floating member, the acting component being configured to move upward under the action of steam pressure in the cooking cavity to push the floating member to move upward.

[0054] According to the present application, the floating sealing assembly opens the airflow passage under the driving of steam.

[0055] Optionally, the gas path integration device further comprises a driving component configured to act on the first end of the floating member to move the floating member upward.

[0056] According to the present application, an external force can also be applied to the upper end of the floating member to drive the floating sealing assembly to move upward.

[0057] Optionally,

[0058] The driving component comprises a motor or a push-pull electromagnet; or

[0059] The floating member comprises a ferromagnetic material, the driving component comprises an electromagnet, the electromagnet is arranged in the device inner cavity and located on the side of the first end of the floating member away from the airflow passage; or

[0060] The driving component comprises a temperature-sensitive deforming component.

[0061] According to the present application, there are various methods for driving the floating sealing assembly to move upward, which can be flexibly set according to specific needs.

[0062] Optionally, the floating member further comprises a floating member connecting portion located between the first end portion of the floating member and the second end portion of the floating member, 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 in clearance fit with the airflow passage.

[0063] Further, the radial dimension of the floating member connecting portion is 0.1mm to 10mm smaller than the radial dimension of the airflow passage.

[0064] Further, the radial dimension of the floating member connecting portion is 0.2mm to 2mm smaller than the radial dimension of the airflow passage.

[0065] According to the present application, the method for making the floating member connecting portion and the airflow passage have a clearance therebetween is simple.

[0066] The fourth aspect of the present application provides a cooking appliance, which comprises:

[0067] a cooking cavity for containing food materials; and

[0068] The gas path integration device according to any one of the third aspect,

[0069] The device inner cavity is in communication with the cooking cavity.

[0070] According to the present application, the floating sealing assembly opens (or blocks) the airflow passage under the action of external force and falls back to block (or open) the airflow passage under the action of its own gravity. 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 airflow direction between the device inner cavity and the cooking cavity, so that the gas path integration device can be used to realize multiple functions.

[0071] Optionally, the cooking appliance further comprises an airflow generating device, the airflow generating device comprises an airflow inlet and an airflow outlet, the device inner cavity is in communication with the airflow inlet and the airflow outlet, and the airflow passage is arranged on a gas path connecting the airflow inlet and the airflow outlet.

[0072] According to the present application, the gas path integration device is connected with the airflow generating device, when the gas path in the gas path integration device changes, the airflow generated by the airflow generating device changes the flow direction in the gas path integration device, so that the gas path integration device has multiple functions, for example, it can blow cold air to the cooking cavity or exhaust air from the cooking cavity.

[0073] Optionally, the cooking utensil further comprises:

[0074] a pot body provided with the cooking cavity; and

[0075] a cover body for covering the pot body, the airflow generating device and the air path integration device being arranged in the cover body, wherein the device cavity is in communication with the cooking cavity when the cover body covers the pot body.

[0076] According to the present application, the airflow generating device and the air path integration device are arranged close to each other, facilitating the connection between the two. BRIEF DESCRIPTION OF DRAWINGS

[0077] The following drawings for the present application are hereby incorporated in and constitute a part of the specification for the present application. The drawings illustrate preferred embodiments of the present application and, together with the description, serve to explain the principles of the present application, but are not intended to limit the present application.

[0078] In the drawings:

[0079] Figure 1 is a perspective view of a part of the cooking utensil according to the first embodiment of the present application;

[0080] Figure 2 is a top view of a part of the cooking utensil shown in Figure 1

[0081] Figure 3 is a side view of a part of the cooking utensil shown in Figure 1

[0082] Figure 4 is an exploded view of a part of the cooking utensil shown in Figure 1

[0083] Figure 5 is a top view of a part of the cover shown in Figure 2

[0084] Figure 6 is a schematic view of the air path structure of the cooking utensil shown in Figure 1

[0085] Figure 7 is a side view of a part of the air path integration device shown in Figure 1

[0086] Figure 8 is a perspective view of a part of the air path integration device shown in Figure 1

[0087] Figure 9 is an enlarged view of part A in Figure 8

[0088] ​​​​​​​​Figure 10 is a perspective view of the gas path integration device in Figure 1 ;

[0089] Figure 11 is a side view of the gas path integration device in Figure 1 ;

[0090] Figure 12 is a top view of the gas path integration device in Figure 1 ;

[0091] Figure 13 is a bottom view of the gas path integration device in Figure 1 ;

[0092] Figure 14 is a perspective view of the device lower cover in Figure 1 ;

[0093] Figure 15 is a perspective view of the device lower cover in Figure 7 ;

[0094] Figure 16 is a top view of the device lower cover in Figure 7 ;

[0095] Figure 17 is a side view of the device lower cover in Figure 7 ;

[0096] Figure 18 is a perspective view of the upper partition pre-assembly after assembly in Figure 14 ;

[0097] Figure 19 is a top view of the upper partition pre-assembly in Figure 18 ;

[0098] Figure 20 is a side view of the upper partition pre-assembly in Figure 18 ;

[0099] Figure 21 is a perspective view of the lower partition pre-assembly after assembly in Figure 14 ;

[0100] Figure 22 is a top view of the lower partition pre-assembly in Figure 21 ;

[0101] Figure 23 is a side view of the lower partition pre-assembly in Figure 21 ;

[0102] Figure 24 is a perspective view of the lower partition pre-assembly in Figure 7bottom view schematic diagram of the lower divider in

[0103] Figure 25 for Figure 1 side view exploded sectional schematic diagram of the gas path integration device in

[0104] Figure 26 for Figure 1 side view exploded sectional schematic diagram of the gas path integration device in

[0105] Figure 27 for Figure 7 perspective exploded schematic diagram of the moving partition assembly in

[0106] Figure 28 for Figure 7 side view exploded sectional schematic diagram of the moving partition assembly in

[0107] Figure 29 for Figure 7 top view schematic diagram of the moving partition assembly in

[0108] Figure 30 for Figure 7 perspective exploded schematic diagram of the floating seal assembly in

[0109] Figure 31 for Figure 7 side view exploded sectional schematic diagram of the floating seal assembly in

[0110] Figure 32 for Figure 7 bottom view schematic diagram of the floating seal assembly in

[0111] Figure 33 side view sectional schematic diagram of the gas path integration device of a cooking appliance according to the second embodiment of the present application;

[0112] Figure 34 side view sectional schematic diagram of the gas path integration device of a cooking appliance according to the third embodiment of the present application;

[0113] Figure 35 side view sectional schematic diagram of the gas path integration device of a cooking appliance according to the fourth embodiment of the present application;

[0114] Figure 36 side view sectional schematic diagram of the gas path integration device of a cooking appliance according to the fifth embodiment of the present application;

[0115] Figure 37FIG. 10 is a side view schematic diagram of a gas path integration device of a cooking appliance according to a sixth embodiment of the present application;

[0116] Figure 38 FIG. 11 is a side view schematic diagram of a gas path integration device of a cooking appliance according to a seventh embodiment of the present application;

[0117] Figure 39 FIG. 12 is a side view schematic diagram of a gas path integration device of a cooking appliance according to an eighth embodiment of the present application;

[0118] Figure 40 FIG. 13 is a side view schematic diagram of a gas path integration device of a cooking appliance according to a ninth embodiment of the present application;

[0119] Figure 41 FIG. 14 is a side view schematic diagram of a gas path integration device of a cooking appliance according to a tenth embodiment of the present application;

[0120] Figure 42 FIG. 15 is a side view schematic diagram of a gas path integration device of a cooking appliance according to an eleventh embodiment of the present application.

[0121] BRIEF DESCRIPTION OF THE DRAWINGS

[0122] 10: cover 11: gasket

[0123] 11A: gasket receiving groove 12: removable cover

[0124] 13: face cover 14: airflow generating device

[0125] 15: airflow inlet 16: airflow outlet

[0126] 17A: top temperature sensor 17B: bottom temperature sensor

[0127] 18: air outlet passage 19: air inlet passage

[0128] 20: pot body 21: pot liner

[0129] 22: cooking cavity 28: heating device

[0130] 30: gas path integration device 31: device upper cover

[0131] 31A: upper cover top wall 31B: upper cover side wall

[0132] 31C: upper cover annular wall 32: upper partition

[0133] 32A: partition 32B: upper groove side wall

[0134] 32C: lower groove side wall 32D: partition connecting portion

[0135] 32E: through hole

[0136] 33: lower divider 33A: vent hole

[0137] 33B: mounting structure 33C: mounting through hole

[0138] 33D: through hole 34: device lower cover

[0139] 34A: lower cover bottom wall 34B: lower cover side wall

[0140] 34C, 34D: through hole 35: second one-way valve

[0141] 36: moving partition assembly 37: floating seal assembly

[0142] 38: device housing 39: device inner cavity

[0143] 41: first opening 42: second opening

[0144] 43: third opening 45: first blocking piece

[0145] 46: blocking piece side edge 47: blocking piece middle portion

[0146] 48: guide post 49: second blocking piece

[0147] 51: first common cavity wall 52: second common cavity wall

[0148] 53: upper divider preassembled assembly 54: lower divider preassembled assembly

[0149] 55: housing opening 55A: first housing opening

[0150] 55B: second housing opening 56: exhaust pipe

[0151] 57: third vent pipe 58: first vent pipe

[0152] 59: second vent pipe 61: telescopic piece

[0153] 61A: telescopic piece outer peripheral portion 61B: telescopic piece middle portion

[0154] 61C: pleated structure 61E: annular protrusion

[0155] 61H: second groove 64: moving partition

[0156] 64A: partition flange plate 64B: partition connecting portion

[0157] 64C: accommodating groove 64D: guide hole

[0158] 64E: first groove 64F, 64G: through hole

[0159] 64H: partition flange 65: pressing ring

[0160] 66: pressing ring connecting part 67: pressing ring

[0161] 69: reinforcing rib 71: floating piece

[0162] 71A: first end of floating piece 71B: second end of floating piece

[0163] 71C: connecting part of floating piece 71E: first mounting groove

[0164] 71F: second mounting groove 75: blocking piece

[0165] 76: diaphragm mounting hole 77: limiting piece

[0166] 78: counterweight piece 81: air blowing cavity

[0167] 82: switching cavity 83: air pumping and exhausting cavity

[0168] 83A: bottom wall of air pumping and exhausting cavity 83B: annular wall

[0169] 83C: exhaust port 83D: air pumping port

[0170] 83E: steam discharging side 83F: cold air communicating side

[0171] 84: air passage cavity 84A: bottom wall of air passage cavity

[0172] 85: exhaust cavity 86: combined cavity

[0173] 91A: first sealing piece 91B: second sealing piece

[0174] 91C: third sealing piece 91D: fourth sealing piece

[0175] 91E: fifth sealing piece 92A: first spring

[0176] 92B: second spring 92C: third spring

[0177] 93A: first magnet 93B: second magnet

[0178] 94A: first rotary buckle 94B: second rotary buckle

[0179] 94C: third rotary buckle 95: temperature sensing deforming part

[0180] 96: flexible piece 100: cooking utensil

[0181] 110: air path structure 111: first air path

[0182] 112: second gas passage 113: third gas passage

[0183] 114: fourth gas passage 115: fifth gas passage

[0184] 130: drive assembly 131: lever

[0185] 132: drive device DA: axial direction

[0186] DR: radial direction PA: axis DETAILED DESCRIPTION

[0187] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail so as not to unnecessarily obscure the present application.

[0188] For a thorough understanding of the present application, reference is made to the following description taken in conjunction with the accompanying drawings. It is to be understood that the application is not limited to the particular implementations described, as the application can assume many different forms. The exemplary implementations described are meant to be illustrative only and changes can be made by persons of ordinary skill in the art without departing from the spirit or scope of the application. It will be apparent to one of ordinary skill in the art that the present application can be practiced without one or more of the specific details set forth herein.

[0189] The ordinal numbers such as "first" and "second" used in the present application are used merely to distinguish one element from another, and do not mean a specific order or priority. For example, a "first" component can be termed a "second" component, and, similarly, a "second" component can also be termed a "first" component, without departing from the scope of the present application. The use of "first" and "second", and the like, is intended to connote "one", "two", or more than two objects, and is not intended to limit the application to a particular number of objects, unless specified otherwise.

[0190] It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like, as used herein are made only for the purpose of illustration and not as a limitation.

[0191] In the present application, "equal", "identical", and the like, are not limited in a strict mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and allowed in manufacturing or use, etc.

[0192] Unless otherwise indicated, numerical ranges expressed in the present application in terms of "from X to Y" are understood to include X and Y. This applies to ranges expressed in terms of "from X to Y", "between X and Y", and "X and Y", where X and Y are numerical values. In other words, a range of "from X to Y" is understood to include X and Y.

[0193] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings.

[0194] This application provides a cooking utensil.

[0195] like Figures 1 to 4 As shown, in a first embodiment, the cooking appliance 100 according to this application may include a pot body 20 and a lid 10. The pot body 20 includes, for example, a pot inner 21. Typically, the pot body 20 may have a cylindrical (or other shaped) receiving cavity, and the pot inner 21 can be freely placed into or removed from the receiving cavity to facilitate cleaning of the pot inner 21. The pot inner 21 is, for example, made of a metal material and constructed as a rotating body with an opening and an inner cavity formed by the pot wall. The capacity of the pot inner 21 is typically less than 6L, for example, the capacity of the pot inner 21 may be 2L or 4L, etc. The pot inner 21 has a pot opening for placing and removing food, and the internal space of the pot inner 21 forms a cooking cavity 22 for holding and heating food. The lid 10 is pivotally connected to the pot body 20 via a pivot axis for closing the pot body 20.

[0196] The cooking appliance 100 has a heating device 28. The heating device 28 is usually located at the bottom of the pot body 20, below the inner pot 21. The heating device 28 is used to heat the inner pot 21 and the food inside, thereby realizing the cooking function. The heating device 28 can be configured as a heating plate, an electromagnetic heating coil, or the like.

[0197] The cooking appliance 100 has a top temperature sensor 17A, which is typically located on the lid 10, for detecting the top temperature of the cooking cavity 22. A bottom temperature sensor 17B is also located in the pot body 20 for detecting the bottom temperature of the cooking cavity 22. The bottom temperature sensor 17B is, for example, in contact with the bottom wall of the inner pot 21.

[0198] In addition, the cooking appliance 100 also includes a control device (not shown) for controlling the cooking process. This control device may be, for example, a microcontroller unit (MCU). The control device is electrically connected to the heating device 28 and the temperature sensor, so that the control device can control the operation of the heating device 28 based on the detected value of the temperature sensor.

[0199] It should be noted that, in this application, the directional terms “up” and “down” are those directions determined based on the cooking appliance 100 when it is placed upright and the lid 10 is in the closed state.

[0200] It should be noted that although some structures of the cooking appliance 100 are illustrated here, these examples are merely exemplary and should not be construed as limiting the structure of the cooking appliance 100 in the embodiments of this application.

[0201] As shown in Figure 3 and Figure 5 , the cover 10 includes a face cover 13, a backing cover 11 and a detachable cover 12. The backing cover 11 forms a skeleton of the cover 10, and various components (e.g. a top temperature sensor 17A) in the cover 10 are mounted on the backing cover 11. The backing cover 11 is pivotally connected to the pot body 20, so that the cover 10 can be closed on the pot body 20. The face cover 13 forms an outer shell of the cover 10, and is mounted on the backing cover 11. The detachable cover 12 is detachably connected to the backing cover 11, and is located at the bottom of the cover 10. The detachable cover 12 is used to close the pot opening of the inner pot 21.

[0202] The cooking process of the cooking appliance 100 includes a preheating procedure, a water absorption procedure, a boiling procedure, a boiling maintenance procedure, a rice stewing procedure and a temperature maintenance procedure. The preheating procedure is used to preliminarily heat the food. In the water absorption procedure, the food is fully water absorbed to improve the taste. In the boiling procedure, the food is heated to a temperature close to boiling by using a high fire, and then is boiled in the boiling maintenance procedure to substantially cook the food. In the rice stewing procedure, the residual free water is dried to further cook the food. Finally, in the temperature maintenance procedure, the food is kept warm so that the user can eat hot food.

[0203] In order to improve the cooking quality, generally, the cooking cavity 22 is subjected to negative pressure in the water absorption procedure, i.e. the air pressure in the cooking cavity 22 is lower than the ambient air pressure, and the negative pressure environment is conducive to the food to fully absorb water. The cooking cavity 22 is also subjected to negative pressure in the temperature maintenance procedure, and the negative pressure environment is conducive to food preservation. In order to improve the cooking efficiency, the cooking cavity 22 is subjected to cold air blowing in the boiling maintenance procedure, i.e. the ambient air is discharged into the cooking cavity 22, which plays a role in preventing the pot from overflowing. Thus, in the boiling maintenance procedure, the heating device 28 can maintain a relatively high power, which is conducive to the food to be quickly cooked.

[0204] In order 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 extraction and the cold air blowing of the cooking cavity 22.

[0205] The air flow generating device 14 is a component for promoting air flow, e.g. an air 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, air flows into the air flow generating device 14 from the air flow inlet 15, and then flows out of the air flow generating device 14 from the air flow outlet 16. The air flow generating device 14 is electrically connected to the control device, so as to work under the control of the control device.

[0206] 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.

[0207] 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.

[0208] 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.

[0209] 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.

[0210] 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.

[0211] Preferably, the air path integration device 30 and the air flow generating device 14 are both arranged in the cover body 10, for example, mounted in the cover 11. As shown in Figure 4 and Figure 5 , the cover 11 is provided with a cover accommodating groove 11A for accommodating the air path integration device 30. The air path integration device 30 is detachably mounted in the cover accommodating groove 11A, for example, so as to facilitate user cleaning. It can be understood that the face cover 13 is provided with an opening at a position corresponding to the cover accommodating groove 11A.

[0212] For example, as shown in Figures 3 to 6 , the cover body 10 is provided with an air outlet passage 18 and an air inlet passage 19. When the cover body 10 covers the pot body 20, the air outlet passage 18 and the air inlet passage 19 are both in communication with the cooking cavity 22. The air path integration device 30 has an exhaust pipe 56, a third air pipe 57, a first air pipe 58 and a second air pipe 59. The exhaust pipe 56, the third air pipe 57, the first air pipe 58 and the second air pipe 59 are all in communication with the device inner cavity 39. When the air path integration device 30 is mounted to the cover body 10, the exhaust pipe 56 is in communication with the air outlet passage 18, and the second air pipe 59 is in communication with the air inlet passage 19, so that the device inner cavity 39 is in communication with the cooking cavity 22. The third air pipe 57 is in communication with the air flow inlet 15. The first air pipe 58 is in communication with the air flow outlet 16. Here, the communication between two components can be that the two components are directly connected, or the two components are connected through a pipeline such as a conduit, an air pipe, etc. The port of the pipeline can also be understood as the interface of the component. For example, the interfaces of the cover body 10 and the air flow generating device 14 for connecting with the air path integration device 30 are both arranged on the bottom wall of the accommodating groove 11A, and the interfaces of the air path integration device 30 are all arranged on the lower surface of the device shell 38, so as to facilitate the connection of the air path structure 110.

[0213] The first air passage 111 and the fourth air passage 114 are upstream air passages of the airflow generating device 14. They can share the third vent pipe 57, meaning the third vent pipe 57 is on both the first air passage 111 and the fourth air passage 114. The third vent pipe 57 is also called a tubular connection. The second air passage 112 and the fifth air passage 115 are downstream air passages of the airflow generating device 14. They can share the first vent pipe 58, meaning the first vent pipe 58 is on both the second air passage 112 and the fifth air passage 115.

[0214] like Figure 7 and Figure 8 As shown, the inner cavity 39 of the device may include an air blowing chamber 81, a switching chamber 82, an exhaust chamber 83, a ventilation chamber 84, and an exhaust chamber 85. The outer shell opening 55 is located on the cavity walls of the ventilation chamber 84 and the exhaust chamber 85, but not on the cavity walls of the air blowing chamber 81, the switching chamber 82, and the exhaust chamber 83. Therefore, the ventilation chamber 84 and the exhaust chamber 85 are always in communication with the external environment. The exhaust chamber 83 is connected to both the exhaust pipe 56 and the third ventilation pipe 57, and thus is always in communication with the cooking cavity 22 and the airflow inlet 15. The first ventilation pipe 58 is connected to the switching chamber 82, so the switching chamber 82 is always in communication with the airflow outlet 16. The air blowing chamber 81 is connected to the second ventilation pipe 59, and thus is always in communication with the cooking cavity 22.

[0215] The structure of the airflow integration device 30 located on the first airflow path 111 includes, in sequence along the airflow direction, an exhaust pipe 56, an exhaust / exhaust chamber 83, and a third vent pipe 57. The structure of the airflow integration device 30 located on the second airflow path 112 includes, in sequence along the airflow direction, a first vent pipe 58, a switching chamber 82, and an exhaust chamber 85. The switching chamber 82 and the exhaust chamber 85 are adjacent. The structure of the airflow integration device 30 located on the third airflow path 113 includes, in sequence along the airflow direction, an exhaust pipe 56, an exhaust / exhaust chamber 83, and a vent chamber 84. The exhaust / exhaust chamber 83 and the vent chamber 84 are adjacent. The structure of the airflow integration device 30 located on the fourth airflow path 114 includes, in sequence along the airflow direction, a vent chamber 84, an exhaust / exhaust chamber 83, and a third vent pipe 57. The structure of the airflow integration device 30 located on the fifth airflow path 115 includes, in sequence along the airflow direction, a first vent pipe 58, a switching chamber 82, a blowing chamber 81, and a second vent pipe 59. The switching chamber 82 and the blowing chamber 81 are adjacent.

[0216] The switching chamber 82 and the blowing chamber 81 are collectively referred to as the combined chamber 86. The combined chamber 86 connects the first vent pipe 58 and the second vent pipe 59. The combined chamber 86 connects the first vent pipe 58 and the cooking chamber 22. The combined chamber 86 connects the airflow outlet 16 and the second vent pipe 59. The combined chamber 86 connects the airflow outlet 16 and the cooking chamber 22.

[0217] 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.

[0218] 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.

[0219] 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.

[0220] 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.

[0221] 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.

[0222] A fifth one-way valve 37 (also called a floating seal assembly 37) in the device 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 passage 115 is open, allowing airflow to flow unidirectionally from the switching chamber 82 to the blowing chamber 81 (that is, allowing airflow unidirectionally from the first vent pipe 58 to the blowing chamber 81, from the first vent pipe 58 to the second vent pipe 59, from the first vent pipe 58 to the cooking chamber 22, from the air outlet 16 to the blowing chamber 81, from the air outlet 16 to the second vent pipe 59, and 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 passage 115 is blocked. For example, the floating seal assembly 37 is movable relative to the second opening 42 (that is, the device cavity 39 or the device housing 38) between a second open position and a second closed position. When the floating sealing assembly 37 is in the second open position, it opens the second opening 42, at which point the switching chamber 82 is connected to the blowing chamber 81, and the first vent pipe 58, the switching chamber 82, the blowing chamber 81, and the second vent pipe 59 form a connected air passage. When the floating sealing assembly 37 is in the second closed position, it closes the second opening 42, at which point the switching chamber 82 is isolated from the blowing chamber 81. Both the second opening 42 and the floating sealing assembly 37 are located between the switching chamber 82 and the blowing chamber 81.

[0223] like Figure 7 As shown, the axial direction of the second opening 42 is DA. A floating seal assembly 37 extends through the second opening 42 and is movable within the second opening 42 in the axial direction DA between a second open position and a second closed position. At least a portion of the floating seal assembly 37 (e.g., the portion of the floating seal assembly 37 for traversing within the second opening 42) has a gap with 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 pass through the gap between the floating seal assembly 37 and the inner circumferential surface of the second opening 42.

[0224] 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.

[0225] 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.

[0226] The movable partition assembly 36 in the device inner cavity 39 is used to define the exhaust air cavity 83 with a part of the device shell 38. In other words, the movable partition assembly 36 and the device shell 38 respectively provide a part of the cavity wall of the exhaust air cavity 83, and at least one of the movable partition assembly 36 and the device shell 38 is provided with a cavity space for forming the exhaust air cavity 83. For example, the movable partition assembly 36 is movable relative to the device shell 38 (i.e., the device inner cavity 39) between a first open position and a first closed position. When the movable partition assembly 36 is located at the first open position, the movable partition assembly 36 is away from the part of the device shell 38 and a first opening 41 is formed between the movable partition assembly 36 and the part of the device shell 38 (see FIG. 5). When the movable partition assembly 36 is located at the first closed position, the movable partition assembly 36 is close to the part of the device shell 38 and a second opening 42 is formed between the movable partition assembly 36 and the part of the device shell 38 (see FIG. 6). 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.

[0227] 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.

[0228] 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.

[0229] When the first opening 41 is opened, the third air path 113 for discharging steam is also opened. Thus, discharging steam and blowing cold air for the cooking cavity 22 can be performed simultaneously. Preferably, the cooking appliance 100 is configured such that the first opening 41 is opened under the action of steam pressure in the cooking cavity 22, or the movable partition assembly 36 opens the first opening 41 under the action of steam pressure in the cooking cavity 22. When the movable partition assembly 36 and the floating sealing assembly 37 are linked, the floating sealing assembly 37 opens the second opening 42 under the action of steam pressure in the cooking cavity 22, or the second opening 42 is opened under the action of steam pressure in the cooking cavity 22. That is, in the process of moving the movable partition assembly 36 from the first closed position to the first open position under the action of steam pressure in the cooking cavity 22, the movable partition assembly 36 contacts the floating sealing assembly 37 in the second closed position, and then forces the floating sealing assembly 37 to move together with the movable partition assembly 36, so as to move the floating sealing assembly 37 to the second open position. Thus, the opening of the first opening 41 does not require the participation of electric control components, and the control is simple and cost-saving. Moreover, when the steam in the cooking cavity 22 can drive the movable partition assembly 36 to move, it indicates that a large amount of steam has been generated in the cooking cavity 22, for example, in the maintaining boiling process, at this time, the first opening 41 is opened, which can discharge steam and blow cold air, and meets the needs of preventing overflow in the maintaining boiling process.

[0230] In the present application, the force of the steam top opening the movable partition assembly 36 to open the first opening 41 is, for example, 0.1 N to 5 N, and preferably 0.2 N to 1 N.

[0231] It can be understood that the control device can determine the temperature in the cooking cavity 22 through the sensing data of the temperature sensor, so as to accurately determine whether to enter the maintaining boiling process, and control the air flow generating device 14 to work after determining to enter the maintaining boiling process. Those skilled in the art can adjust the control software and component parameters through experiments, so that the movable partition assembly 36 has opened the first opening 41 under the action of steam in the cooking cavity 22 before the control software confirms to enter the maintaining boiling process.

[0232] 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 sealing assembly 37 moves from the second open position to the second closed position by its own weight. Further, the cooking appliance 100 is configured such that the floating sealing assembly 37 is above the movable partition assembly 36, and the movable partition assembly 36 is above the first opening 41 (the floating sealing assembly 37 and the first opening 41 are located on opposite sides of the movable partition assembly 36 along the axial direction DA), and the first open position is above the first closed position. When the floating sealing assembly 37 moves from the second open position to the second closed position by its own weight, it also causes the movable partition assembly 36 to move from the first open position to the first closed position by its own weight. That is, during the process of the floating sealing assembly 37 moving from the second open position to the second closed position by its own weight, it contacts the movable partition assembly 36 located in the first open position, and then forces the movable partition assembly 36 to move together with the floating sealing assembly 37, thereby moving the movable partition assembly 36 to the first closed position.

[0233] Furthermore, to simplify control, the cooking appliance 100 is configured such that the second one-way valve 35 opens the third opening 43 under the action of the air pressure in the switching chamber 82 (i.e., the air pressure in the first vent pipe 58, the air pressure at the air outlet 16, and the air pressure in the second air passage 112). In other words, the second one-way valve 35 has an open position or open state driven by the air pressure in the switching chamber 82. When the air pressure in the switching chamber 82 drops, the second one-way valve 35 closes (is in the closed position or closed state). The second one-way valve 35 includes, for example, an elastic member that deforms under air pressure to open the third opening 43 and returns to its original shape through its elasticity to close the third opening 43. Thus, the air passage integration device 30 does not require connection to electrical control components, simplifying control, saving costs, and simplifying the assembly of the cooking appliance 100.

[0234] like Figure 7 As shown, the second one-way valve 35 is constructed as an elastic diaphragm covering the third opening 43. When there is airflow in the switching chamber 82, the airflow deforms the elastic diaphragm, for example, by flipping it upwards as shown in the figure, exposing the third opening 43 and thus opening the second air passage 112. When the airflow pressure is insufficient, the elastic diaphragm recovers under its own elasticity, re-covering the third opening 43 and blocking the second air passage 112.

[0235] 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.

[0236] 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.

[0237] 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.

[0238] 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.

[0239] The specific exemplary structure of the air path integration device 30 will be introduced below.

[0240] 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.

[0241] The air path integration device 30 includes a device upper cover 31, an upper partition 32, a lower partition 33, and a device lower cover 34. The device upper cover 31 and the device lower cover 34 form parts of a device housing 38 respectively, and together enclose a device inner cavity 39. The device lower cover 34 is located below the device upper cover 31, and is configured to face the cooking cavity 22 and contact the bottom wall of the accommodating groove 11A. The exhaust pipe 56, the third air pipe 57, the first air pipe 58, and the second air pipe 59 all extend from the lower surface of the device lower cover 34.

[0242] The device upper cover 31 is configured as a top hat, for example, and includes an upper cover top wall 31A, an upper cover side wall 31B, and an upper cover annular wall 31C. The upper cover side wall 31B is generally a cylinder extending in the axial direction DA. The upper cover top wall 31A is connected to the upper end of the upper cover side wall 31B, forms a hat top, and constitutes the top wall of the air path integration device 30. The inner peripheral edge of the upper cover annular wall 31C is connected to the outer peripheral surface of the lower end of the upper cover side wall 31B, and extends radially outward from the outer periphery of the upper 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 axial direction of the lower cover side wall 34B is also the axial direction DA. The lower cover bottom wall 34A is connected to the lower end of the lower cover side wall 34B, and constitutes the bottom wall of the air path integration device 30, configured to contact the groove bottom of the accommodating groove 11A. The lower cover bottom wall 34A extends along a plane, for example, thereby reducing the processing difficulty. The outer peripheral edge of the upper cover annular wall 31C is located above the periphery of the opening at the upper end of the lower cover side wall 34B.

[0243] 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.

[0244] The lower partition 33 is configured as a disc, for example, and its outer peripheral edge is connected to the inner peripheral surface of the lower cover side wall 34B. The lower partition 33 is connected to the device lower cover 34, for example, by a third rotary buckle 94C (see Figure 11 and Figure 14 ). The upper partition 32 is located above the lower partition 33.

[0245] 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 ).

[0246] 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.

[0247] 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.

[0248] 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.

[0249] 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 ). Since the upper tank of the upper partition 32 is 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.

[0250] 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.

[0251] The space between the lower partition 33 and the device lower cover 34 forms the exhaust cavity 83 and the ventilation cavity 84. Specifically, referring to Figure 15 and Figure 16 , the lower cover bottom wall 34A is provided with an annular wall 83B extending in the axial direction DA, the annular wall 83B is located in the device inner cavity 39, the inner side space of the annular wall 83B is used to form at least part of the exhaust cavity 83, and the outer side space of the annular wall 83B is used to form the ventilation cavity 84. The middle portion of the lower cover bottom wall 34A forms the exhaust cavity bottom wall 83A of the exhaust cavity 83, and the annular wall 83B forms at least part of the exhaust cavity side wall of the exhaust cavity 83. The outer portion of the lower cover bottom wall 34A forms the bottom wall of the ventilation cavity 84, the lower cover side wall 34B forms the side wall of the ventilation cavity 84, and the lower partition 33 forms the top wall of the ventilation cavity 84.

[0252] 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.

[0253] 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.

[0254] The housing opening 55 is arranged on the device upper cover 31. For example, referring to Figure 12 , the housing opening 55 includes a first housing opening 55A arranged on the annular wall 31C. Referring to Figure 24 , the lower partition 33 is provided with a ventilation hole 33A near the edge. Referring to 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. Referring to Figure 10 and Figure 11 , the housing opening 55 further includes a second housing opening 55B arranged on the upper portion of the upper cover side wall 31B, and the second housing opening 55B is used to communicate the exhaust cavity 85 with the environment. Referring to Figure 1When the gas path integration device 30 is mounted to the cover 10, the device upper cover 31 protrudes from the upper surface of the face cover 13, for example, so that the first housing aperture 55A and the second housing aperture 55B are in communication with the environment.

[0255] The first vent tube 58 is provided on the lower partition 33. The first vent tube 58 extends in the axial direction DA in the device inner cavity 39, passes through the vent cavity 84, and exits from the through hole 34C on the lower cover bottom wall 34A. The first vent tube 58 can be integrally formed with the lower partition 33. The second vent tube 59 is provided on the middle portion of the partition 32A (see Figure 8 ), that is, the bottom wall of the blowing cavity 81. The second vent tube extends in the axial direction DA in the device inner cavity 39, passes through the switching cavity 82 and the vent cavity 84, and exits from the through hole 34D on the lower cover bottom wall 34A. The lower partition 33 is provided with a through hole 33D (see Figure 24 ) for the second vent tube 59 to pass through. Both the first vent tube 58 and the second vent tube 59 are located outside the annular wall 83B, so as not to affect the gas path function of the pumping and exhaust cavity 83.

[0256] As mentioned above, the upper partition 32 is connected with the lower partition 33 by the second rotating buckle 94B, that is, the two need to be relatively rotated, and the second vent tube 59 needs to pass through the lower partition 33, so the second vent tube 59 cannot be integrally formed with the upper partition 32. The second vent tube 59 is detachably connected with the partition 32A. As shown in Figure 8 , the partition 32A is provided with a partition connecting portion 32D for detachable connection with the second vent tube 59. The partition connecting portion 32D is configured as an internally threaded tube (or hole) extending in the axial direction DA, for example, and the outer periphery of the second vent tube 59 is provided with an external thread, which is screwed with the partition connecting portion 32D. When the upper partition 32 and the lower partition 33 are buckled in place, the partition connecting portion 32D is aligned with the through hole 33D of the lower partition 33.

[0257] When assembling the gas path integration device 30, first, the second one-way valve 35 and the floating sealing assembly 37 are mounted to the partition 32A, and the moving partition assembly 36 is mounted to the lower partition 33. Then, the upper partition 32 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.

[0258] In order not to affect the functions of the various cavities in the device inner cavity 39, a plurality of sealing members are also provided in the device inner cavity. In order to ensure that the pumping and exhaust cavity 83 and the vent cavity 84 are not in communication in the pumping negative pressure mode, a first sealing member 91A is provided between the moving partition assembly 36 and the device housing 38. The first sealing member 91A is a sealing ring, for example, which straddles the end of the annular wall 83B (see Figure 9). A second seal 91B is also provided between the lower groove side wall 32C of the upper partition 32 and the edge of the lower partition 33 for sealing the switching cavity 82. Meanwhile, the upper cover side wall 31B is close to the lower groove side wall 32C, so that the second seal 91B is also connected between the upper cover side wall 31B and the edge of the lower partition 33. Thus, the second seal 91B is used for sealing between the exhaust cavity 85, the switching cavity 82 and the ventilation cavity 84. A third seal 91C is provided between the upper groove side wall 32B of the upper partition 32 and the upper cover top wall 31A for sealing between the blowing 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 provided at the through hole 33D of the lower partition 33 for sealing contact between the second ventilation tube 59 and the through hole 33D, so that the switching cavity 82 is not communicated with the ventilation cavity 84. A fifth seal 91E is provided in the through hole 32E of the partition connecting portion 32D, so that the second ventilation tube 59 is sealingly connected with the partition connecting portion 32D for sealing between the blowing cavity 81 and the switching cavity 82.

[0259] 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 tube 58 has been located in the through hole 34C, and the second ventilation tube 59 has been located in the through hole 34D. The through holes 34C and 34D reserve enough space for the corresponding gas tubes to move therein. As shown in Figure 13 The through holes 34C and 34D are both long holes, and when the device lower cover 34 just contacts the lower partition 33 in the axial direction DA, the two gas tubes are located at one end of the corresponding long hole (such as the black marked position in the figure), and after the device lower cover 34 is screwed and engaged with the lower partition 33 (such as the red arrow direction in the figure), the two gas tubes are located at the other end of the corresponding long hole (such as the blue marked position in the figure).

[0260] As shown in Figure 14 and Figures 18 to 20 The second one-way valve 35, the floating sealing assembly 37, the upper partition 32 and the third seal 91C can be pre-assembled to form an upper partition pre-assembled assembly 53. As shown in Figure 14 and Figures 21 to 23 The moving partition assembly 36 and the lower partition 33 can be pre-assembled to form a lower partition pre-assembled assembly 54. The upper partition pre-assembled assembly 53 and the lower partition pre-assembled assembly 54 are connected through the second rotation buckle 94B. After the upper partition pre-assembled assembly 53 and the lower partition pre-assembled assembly 54 are connected, the upper cover 31 is connected with the upper partition pre-assembled assembly 53 through the first rotation buckle 94A, and the lower cover 34 is connected with the lower partition pre-assembled assembly 54 through the third rotation buckle 94C.

[0261] The structure and mounting method of the movable partition assembly 36 will be described below.

[0262] Referring to Figure 24 , the lower partition 33 is provided with a mounting structure 33B for mounting the movable partition assembly 36, the mounting structure 33B including a mounting through hole 33C. The movable partition assembly 36 is inserted 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, both being the axial direction DA. As shown in Figure 9 , the first opening 41 is spaced apart from the mounting through hole 33C along the axial direction DA. The movable 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.

[0263] As shown in Figures 7 to 9 and Figures 27 to 29 , the movable partition assembly 36 includes an expansion member 61, a movable partition 64, and a pressing ring 65.

[0264] The expansion member 61 is connected to the periphery of the mounting through hole 33C and is expandable in the axial direction DA of the mounting through hole 33C between the first open position and the first closed position. The movable partition 64 defines an exhaust cavity 83 together with part of the device housing 38. The movable partition 64 is inserted through the mounting through hole 33C and is connected to the expansion member 61 to move synchronously with the expansion member 61 between the first open position and the first closed position. Thus, the opening and closing of the first opening 41 is achieved by the movement of the movable partition 64.

[0265] The expansion member 61 has, for example, a radial symmetry structure including an expansion member peripheral portion 61A and an expansion member intermediate portion 61B, the expansion member peripheral portion 61A being connected to the expansion member intermediate portion 61B at the periphery of the expansion member intermediate portion 61B. The expansion member peripheral portion 61A is in the shape of a circular ring for connection to the periphery of the mounting through hole 33C. The expansion member intermediate portion 61B is configured to extend through the mounting through hole 33C and be movable relative to the expansion member 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.

[0266] The movable partition 64 is connected to the side of the expansion member intermediate portion 61B facing the first opening 41 and moves synchronously with the expansion member intermediate portion 61B between the first open position and the first closed position. In the first embodiment, the movable partition 64 moves from the first closed position (see Figure 25 ) to the first open position (see Figure 26) to move the middle part 61B of the telescopic member from the first open position to the first closed position. The middle part 61B of the telescopic member is moved from the first open position to the first closed position under the action of the floating seal assembly 37, thereby moving the moving partition 64 from the first open position to the first closed position.

[0267] The main part of the pressing ring 65 is a pressing ring 67, which is configured as a circular ring and matches the shape of the outer peripheral part 61A of the telescopic member, and is used to contact the outer peripheral part 61A of the telescopic member so that the outer peripheral part 61A of the telescopic member is clamped between the pressing ring 67 and the mounting structure 33B, i.e., the outer peripheral part 61A of the telescopic member is pressed around the mouth of the mounting through hole 33C. Thus, the position of the outer peripheral part 61A of the telescopic member is fixed, i.e., the relative position of the outer peripheral part 61A of the telescopic member to the first opening 41 is fixed. The outer peripheral part 61A of the telescopic member can move in the axial direction DA in the central through hole of the pressing ring 67. The pressing ring 65 further includes a pressing ring connecting part 66, which is used to connect the mounting structure 33B, for example, detachably connect the mounting structure 33B. For example, the pressing ring connecting part 66 is arranged on the radially outer side of the inner peripheral surface of the pressing ring 67 and is connected to the mounting structure 33B by bolts. The telescopic member 61 is connected to the side of the mounting through hole 33C away from the first opening 41, thereby facilitating the installation of the pressing ring 65.

[0268] The telescopic member 61 is preferably made of elastic material. It can be understood that, since the outer peripheral part 61A of the telescopic member is connected around the mouth of the mounting through hole 33C, the telescopic member 61 can seal the mounting through hole 33C, thereby isolating the switching cavity 82 from the ventilation cavity 84 and isolating the switching cavity 82 from the exhaust cavity 83. The middle part 61B of the telescopic member includes a pleated structure 61C. The pleated structure 61C is configured to extend in the radial direction DR and is concave-convex in the axial direction DA. Due to the use of elastic material, the pleated structure 61C can be stretched and reset. When the pleated structure 61C is stretched, the middle part 61B of the telescopic member moves away from the outer peripheral part 61A in the axial direction DA, thereby moving the moving partition 64 away from the first opening 41 in the axial direction DA, so as to open the first opening 41. When the pleated structure 61C is reset, the middle part 61B of the telescopic member moves toward the outer peripheral part 61A in the axial direction DA, thereby moving the moving partition 64 toward the first opening 41 in the axial direction DA, so as to close the first opening 41. In other words, the moving partition 64 has a first open position and a first closed position, and the middle part 61B of the telescopic member is configured to be telescopic in the axial direction DA to correspond to the switching of the moving partition 64 between the first open position and the first closed position.

[0269] The movable partition 64 can include a partition connecting portion 64B and a partition flange plate 64A. The partition connecting portion 64B extends in the axial direction DA, and an end of the partition connecting portion 64B distal from the first opening 41 is connected to the side of the telescopic member intermediate portion 61B facing the first opening 41. The partition flange plate 64A is provided on the outer circumferential side of the partition connecting portion 64B, and is configured to contact the device housing 38, i.e., to open and close the first opening 41. The outer diameter of the partition flange plate 64A is not less than the diameter of the first opening 41. The partition connecting portion 64B extends through the mounting through-hole 33C, and is movable in the axial direction DA relative to the mounting through-hole 33C between the first open position and the first closed position in the mounting through-hole 33C.

[0270] The partition connecting portion 64B can have a small radial dimension to save material. Correspondingly, the mounting through-hole 33C, the telescopic member 61, and the compression ring 65 can all have small dimensions. The radial dimension of the partition flange plate 64A can be greater than the diameter of the mounting through-hole 33C, so that the partition flange plate 64A is always located on the side of the mounting through-hole 33C facing the first opening 41, i.e., the partition flange plate 64A is always located in the air passage cavity 84. The partition flange plate 64A is connected to the end of the partition connecting portion 64B in the axial direction DA, so that the axial dimension of the partition connecting portion 64B can be reduced.

[0271] Preferably, the telescopic member intermediate portion 61B is detachably connected to the movable partition 64. The movable partition 64 (in particular, the partition connecting portion 64B) is provided with a partition flange 64H, and the telescopic member intermediate portion 61B is tightly fitted with the partition flange 64H. For example, the outer circumferential surface of the movable partition 64 is configured with a radially outward annular partition flange 64H extending in the circumferential direction, and the inner circumferential surface of the side of the telescopic member intermediate portion 61B facing the first opening 41 is configured with a second groove 61H extending in the circumferential direction, the groove opening and groove bottom of the second groove 61H being opposite in the radial direction DR, and configured to accommodate the annular flange 64H. The movable partition 64 is made of a hard material (plastic, metal, etc.), and the partition flange 64H can be tightly fitted with the partition flange 64H by using the elasticity of the telescopic member 61. For example, the inner circumferential surface of the side of the telescopic member intermediate portion 61B facing the first opening 41 is configured with a radially inward annular protrusion 61E extending in the circumferential direction, and the outer circumferential surface of the partition flange 64H is configured with a first groove 64E extending in the circumferential direction, the groove opening and groove bottom of the first groove 64E being opposite in the radial direction DR, and configured to accommodate the annular protrusion 61E. The movable partition 64 can press and deform the telescopic member 61 by using the elasticity of the telescopic member 61, so that the annular protrusion 61E can enter the first groove 64E.

[0272] Preferably, the partition flange plate 64A is provided with a reinforcing rib 69 for reinforcing the strength of the partition flange plate 64A. The reinforcing rib 69 protrudes from the surface of the partition flange plate 64A. Preferably, the reinforcing rib 69 is arranged on the side of the partition flange plate 64A facing the first opening 41, so that the size of the partition connecting portion 64B in the axial direction DA can be reduced. The reinforcing rib 69 is configured, for example, as an annular rib, and can be located inside the annular wall 83B.

[0273] Further, the mounting structure 33B is provided with at least one guide post 48 extending in the axial direction DA towards the first opening 41, for example, the side of the lower partition 33 facing the device lower cover 34 is provided with at least one guide post 48 extending in the axial direction DA, and the partition flange plate 64A of the moving partition 64 is provided with at least one guide hole 64D for accommodating the guide post 48. The guide post 48 is arranged corresponding to the guide hole 64D, and the guide post 48 is movable in the axial direction DA in the guide hole 64D. Thus, the guide post 48 and the guide hole 64D enable the moving partition 64 to be stably moved in the axial direction DA. A plurality of guide posts 48 and guide holes 64D can be uniformly distributed in the circumferential direction. As shown in Figure 24 As shown in Figure 25 and Figure 26 As shown in

[0274] As shown in Figure 27 The partition flange plate 64A is also provided with a through hole 64F for the first air vent pipe 58 to pass through and a through hole 64G for the second air vent pipe 59 to pass through. The first air vent pipe 58 and the second air vent pipe 59 also have a guiding effect on the movement of the moving partition 64. From Figure 24 It can be seen that the guide post 48, the first air vent pipe 58 and the second air vent pipe 59 are generally distributed on the same circle with the axis PA as the center.

[0275] As mentioned earlier, the steam exhaust third air path 113 and the cold air blowing fourth air path 114 of the cooking appliance 100 are simultaneously conducted, that is, the steam exhaust and the cold air blowing are simultaneously performed, and the two air paths share the exhaust air cavity 83 and the air vent cavity 84. In the exhaust air cavity 83 and the air vent cavity 84, the third air path 113 and the fourth air path 114 have opposite air flow directions and different air flow temperatures.

[0276] In order to make the hot steam that needs to move along the third air path 113 as little as possible to enter the fourth air path 114, as Figure 15 and Figure 16As shown, a first blocking member 45 is also provided on the bottom wall 83A of the exhaust chamber, located between the exhaust port 83D and the exhaust port 83C. The first blocking member 45 protrudes from the bottom wall 83A of the exhaust chamber towards the interior of the exhaust chamber 83, preventing airflow between the exhaust port 83D and the exhaust port 83C to a certain extent. In other words, the first blocking member 45 divides the exhaust chamber 83 into a steam exhaust side 83E and a cold air connection side 83F. It is understood that the exhaust port 83C is located on the steam exhaust side 83E, and the exhaust port 83D is located on the cold air connection side 83F.

[0277] Furthermore, a second blocking member 49 is provided in the venting cavity 84. The lower side of the second blocking member 49 is connected to the bottom wall 34A and the side wall 34B of the lower cover, and its upper edge conforms to the bottom shape of the lower partition 33, thereby substantially dividing the venting cavity 84 into two. Preferably, the second blocking member 49 is located in the extending direction of the first blocking member 45, that is, on the extension line of the first blocking member 45, and together with the first blocking member 45, it serves to separate the hot and cold airflows. Due to the radial arrangement of the exhaust cavity 83 and the venting cavity 84, two second blocking members 49 are provided in the venting cavity 84, respectively corresponding to the two sides 46 of the first blocking member 45 extending on the extension line of the first blocking member 45.

[0278] like Figure 7 As shown, hot steam enters the exhaust chamber 83 from the exhaust pipe 56 via the blue third gas path 113. Due to the obstruction 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 then is 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, thereby forming a double-layer obstruction with the first blocking member 45 to a certain extent, further preventing the hot steam from moving 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 portions of the exhaust chamber 83 and the ventilation chamber 84 located on the side of the two obstructions 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 obstruction 49 facing the exhaust port 83D, and then enter the exhaust chamber 83 from the side of the first obstruction 45 facing the exhaust port 83D.

[0279] like Figures 15 to 17As shown, preferably, the width direction spaced two side edges 46 of the first barrier 45 are connected to the annular wall 83B to more fully block the suction port 83D and the exhaust port 83C. Preferably, the width direction middle portion 47 of the first barrier 45 protrudes from the annular wall 83B toward the moving baffle assembly 36 in the axial direction DA to more fully block the suction port 83D and the exhaust port 83C. The baffle connecting portion 64B of the moving baffle assembly 36 includes a receiving slot 64C (see Figure 28 ) having an opening facing the first opening 41 for receiving the middle portion 47 of the first barrier 45. In this way, the middle portion 47 of the first barrier 45 can have a certain height to facilitate the isolation of the hot steam and the ambient cold air. To accommodate the shape of the mounting through hole 33C, the baffle connecting portion 64B is generally cylindrical in shape, and thus the receiving slot 64C is a circular slot. To extend the effective length of the middle portion 47 of the first barrier 45, the middle portion 47 of the first barrier 45 includes an arc-shaped plate having an arc axis generally coinciding with the axis of the annular wall 83B. The arc of the arc-shaped plate is, for example, 90 degrees to 180 degrees. The first barrier 45, the annular wall 83B, the exhaust pipe 56, the third air pipe 57, and the device lower cover 34 can be integrally formed.

[0280] It can be understood that the receiving slot 64C is also part of the cavity space of the suction and exhaust cavity 83.

[0281] Preferably, the axis of the exhaust port 83C generally coincides with the axis of the annular wall 83B, so that the steam can uniformly act on the moving baffle 64. Preferably, the diameter of the exhaust port 83C is greater than the diameter of the suction port 83D, which facilitates the steam to quickly enter the suction and exhaust cavity 83 and occupy the third air path 113.

[0282] When the mobile partition assembly 36 is in the first open position, the air path integration device 30 is in a blowing mode of blowing air into the cooking cavity 22, the housing opening 55, the air passage cavity 84, the first opening 41, the air exhaust cavity 83 (specifically, the cold air communication side 83F), the third air passage tube 57, the airflow generating device 14, the first air passage tube 58, the combined cavity 86, and the second air passage tube 59 can form an internal blowing air path (an air path of blowing cold air into the cooking space 22) in communication. Among them, the housing opening 55, the air passage cavity 84, the first opening 41, and the cold air communication side 83F form a cold air inlet air path in communication. The air in the external environment enters the airflow generating device 14 through the air exhaust cavity 84, the tubular connecting portion 57, and the airflow inlet 15. At the same time, the air path integration device 30 is also in an exhaust mode, and the exhaust pipe 56, the steam exhaust side 83E, the first opening 41, the air passage cavity 84, and the housing opening 55 form a steam exhaust air path. When the mobile partition assembly 36 is in the first closed position, the air path integration device 30 is in a suction mode of sucking air into the cooking cavity 22, and the air exhaust cavity 83 is separated from the air passage cavity 84. The exhaust pipe 56, the air exhaust cavity 83, the third air passage tube 57, the airflow generating device 14, the first air passage tube 58, and the combined cavity 86 (specifically, the switching cavity 82) can form an external suction air path (an air path of sucking negative pressure into the cooking space 22) in communication. The gas in the cooking cavity 22 enters the airflow generating device 14 through the exhaust pipe 56, the air exhaust cavity 83, the tubular connecting portion 57, and the airflow inlet 15.

[0283] In the present application, preferably, the axes of the device upper cover 31, the upper partition 32, the lower partition 33, the device lower cover 34, the mounting through hole 33C, the mobile partition assembly 36, and the annular wall 83B are all the axis PA of the air path integration device 30.

[0284] In some embodiments not shown in the present application, the lower cover bottom wall 34A does not extend along a plane, wherein the middle portion and the outer peripheral portion are not in the same plane, for example, wherein the middle portion is recessed downward relative to the outer peripheral portion, for example, the annular wall 83B constitutes part of the outer surface of the device housing 38.

[0285] In some embodiments not shown in the present application, the cavity space of the air exhaust cavity 83 is completely provided by the mobile partition assembly 36. For example, the lower cover 34 does not provide the annular wall 83B, the reinforcing ribs 69 of the mobile partition 64 of the mobile partition assembly 36 form the side wall of the air exhaust cavity 83, the accommodation groove 64C forms the cavity space of the air exhaust cavity 83, and the lower cover bottom wall 34A forms the bottom wall of the air exhaust cavity 83. The first sealing member 91A is sleeved on the reinforcing rib 69.

[0286] The structure and installation method of the floating sealing assembly 37 are described below.

[0287] As described above, the floating sealing assembly 37 extends through the second opening 42. As shown in FIG. 4, the floating sealing assembly 37 is arranged on the second opening 42 of the device housing 38.Figures 30 to 32 As shown, the floating seal assembly 37 includes a floating member 71 and a blocking member 75. The floating member 71 is configured to extend through the second opening 42 and is movable in the axial direction DA in the second opening 42. The floating member 71 includes a floating member first end portion 71A and a floating member second end portion 71B disposed 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 a portion of the floating member 71 and the inner circumferential surface of the second opening 42. The blocking member 75 is connected to the floating member first end portion 71A and is configured to block the second opening 42 at one end of the second opening 42. For example, the radial dimension of the blocking member 75 is greater than the radial dimension of the second opening 42, so that the blocking member 75 closes the second opening 42 by covering the second opening 42. At the same time, the blocking member 75 also allows the floating member 71 to have a limit position when moving toward the side of the floating member second end portion 71B.

[0288] The blocking member 75 is preferably made of an elastic material. The blocking member 75 can also be understood as a sealing member. The blocking member 75 is, for example, configured as an elastic diaphragm that covers the second opening 42 at one end (one side) of the second opening 42. The elastic diaphragm is provided with a diaphragm mounting hole 76 through which the floating member first end portion 71A passes, so that the elastic diaphragm is sleeved on the outer periphery of the floating member first end portion 71A. For example, the outer periphery of the floating member first end portion 71A is provided with a first mounting groove 71E extending in the circumferential direction, which is configured to accommodate the portion of the elastic diaphragm located around the mouth of the diaphragm mounting hole 76, i.e., to clamp the elastic diaphragm in the first mounting groove 71E.

[0289] The blocking member 75 is, for example, configured as a circular (annular) elastic diaphragm. The diameter of the blocking member 75 is, for example, 2-10 mm.

[0290] The floating member second end portion 71B also extends out of the second opening. The floating seal assembly 37 further includes a limiting member 77 connected to the floating member second end portion 71B, and the radial dimension of the limiting member 77 is greater than the radial dimension of the second opening 42. Therefore, the limiting member 77 allows the floating member 71 to have a limit position when moving toward the side of the floating member first end portion 71A. The limiting member 77 is, for example, sleeved on the outer periphery of the floating member second end portion 71B. For example, the limiting member 77 can be configured as a limiting ring made of an elastic material. The outer periphery of the floating member second end portion 71B is, for example, provided with a second mounting groove 71F extending in the circumferential direction, which is configured to accommodate the limiting member 77, i.e., to clamp the limiting member in the second mounting groove 71F.

[0291] The float member 71 further includes a float member connecting portion 71C between the float member first end portion 71A and the float member second end portion 71B. The float member connecting portion 71C extends through the second opening 42 and is movable in the axial direction DA between the second open position and the second closed position in the second opening 42. There is a gap between the float member connecting portion 71C and the inner peripheral surface of the second opening 42. For example, when the stopper member 75 contacts the inner wall of the second opening 42, the float seal assembly 37 is in the second closed position. When the stopper member 75 is away from the partition 32A, the float seal assembly 37 is in the second open position. In the second open position, the float member connecting portion 71C is in the second opening 42 with a gap from 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 member 75 is connected to the float member 71 and moves synchronously with the float member 71, and the stopper member 75 is used to open the gap when the float member 71 is in the second open position, and to close the gap when the float member 71 is in the second closed position.

[0292] For example, the radial dimension of the float member connecting portion 71C is smaller than the radial dimension of the second opening 42, so that the float member connecting portion 71C is in a clearance fit with the second opening 42. The radial dimension of the float member connecting portion 71C is 0.1 mm to 10 mm smaller than the radial dimension of the second opening 42. More preferably, the radial dimension of the float member connecting portion 71C is 0.2 mm to 2 mm smaller than the radial dimension of the second opening 42. Alternatively, the outer peripheral surface of the float member connecting portion 71C can be provided with at least one third groove extending in the axial direction DA, so that there is a gap between the float member connecting portion 71C and the inner peripheral surface of the second opening 42.

[0293] In the first embodiment, the axial direction DA is the up-down direction, the float member first end portion 71A is above the float member second end portion 71B, and the float member first end portion 71A is above the second opening 42 and the float member second end portion 71B is below the second opening 42. The float member second end portion 71B is used to receive the action of the moving partition assembly 36 to move upward from the second closed position to the second open position. The float seal assembly 37 moves downward from the second open position to the second closed position by its own gravity.

[0294] As Figure 25As shown, when the cooking cavity 22 is under negative pressure, the floating sealing assembly 37 is kept in the second closed position by its own gravity, i.e. pressing on the second opening 42. At this time, the air pump is working, so that the first air pipe 58 blows air to the switching cavity 82, for example, so that the air pressure in the switching cavity 82 is P1. The cooking cavity 22 is communicated with the switching cavity 82 through the air pump and the first air pipe 58, so the air pressure in the cooking cavity 22 is also approximately P1. The blowing cavity 81 is communicated with the cooking cavity 22 through the second air pipe 59, so the air pressure in the blowing cavity 81 is also P1. The air pressure in the switching cavity 82 and the blowing cavity 81 both apply a force F upward to the floating sealing assembly 37, which can be approximately considered as the product of the air pressure P1 and the area of the blocking member 75 (considering that the air pressure acts on the blocking member 75). Generally, the negative pressure in the cooking cavity 22 is -5kPa≤P1≤-40kPa, and when the radial dimension of the blocking member 75 is 2-10mm, the force F is approximately 0.0157 to 3.14N. In order to keep the floating sealing assembly 37 in the second closed position by its own gravity, the gravity of the floating sealing assembly 37 is not less than or is approximately equal to 2F. The mass (preset weight) of the floating sealing assembly 37 is for example 1g to 628g, for example 1g to 50g, 3g to 628g. More preferably, the mass of the floating sealing assembly 37 is for example 5g to 20g, 3g to 200g.

[0295] As mentioned above, the preset weight of the floating sealing assembly 37 needs to be adapted to the deformation ability of the second one-way valve 35. It can be understood that when the steam lifts the moving partition assembly 36, the steam overcomes the weight of the moving partition 64, the weight of the floating sealing assembly 37 and the deformation force of the telescopic member 61, so that the moving partition 64 leaves the first sealing member 91A on the annular wall 83B. When the air pressure of the steam is not enough to overcome the weight of the moving partition 64, the weight of the floating sealing assembly 37 and the deformation force of the telescopic member 61, the moving partition 64 adheres to the first sealing member 91A, so that the cooking cavity 22 has a certain pressure (for example 3kPa to 4kPa). Therefore, the weight of the floating sealing assembly 37 can be adapted to the micro-pressure of the cooking cavity 22. For example, the floating sealing assembly 37 further comprises a counterweight 78, which is arranged at the first end 71A of the floating member and above the blocking member 75. The total weight of the floating sealing assembly 37 can be adjusted by adjusting the weight of the counterweight 78.

[0296] The force of the steam applied to the mobile partition assembly 36 is related to the effective area of the mobile partition 64. The effective area of the mobile partition 64 is the area of the portion of the mobile partition 64 exposed in the evacuation chamber 83; or the area of the mobile partition 64 accessible to the steam when the mobile partition assembly 36 is in the first closed position. The area of the mobile partition 64 accessible to the steam when the mobile partition assembly 36 is in the first closed position is the area of the mobile partition 64 located inside the annular wall 83B. Preferably, the inner diameter of the annular wall 83B is 10mm to 100mm, more preferably 10mm to 50mm, more preferably 10mm to 40mm or 15mm to 50mm, more preferably 20mm to 30mm. The first seal 91A is sized to match the diameter of the annular wall 83B.

[0297] The first vent tube 58 is located outside the annular wall 83B, with its center point being at a distance of, for example, 17.5mm to 60mm, preferably 22.5mm to 35mm, from the center line point (axis PA) of the annular wall 83B.

[0298] The second vent tube 59 is located outside the annular wall 83B, with its center point being at a distance of, for example, 12.5mm to 55mm, preferably 17.5mm to 30mm, from the center line point (axis PA) of the annular wall 83B.

[0299] 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 seal 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 member 75 is provided at the second end 71B of the floating member. In such an embodiment, the floating seal 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.

[0300] Other embodiments of the present application are described below, in which the same contents as the first embodiment will not be described in detail.

[0301] In Figure 33 the second embodiment shown in Figure 34 the third embodiment shown in, the mobile partition assembly 36 (for example, the mobile partition 64 thereof) is connected with a resilient member, for example, a spring, and is moved from the first open position to the first closed position under the action of the spring.

[0302] As Figure 33As shown, the second spring 92B is sleeved on the outer periphery of the guide post 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 movable partition 64 is opened by steam, the second spring 92B is compressed. When the steam pressure is insufficient, the second spring 92B returns to its original state, pushing the movable partition 64 back to the first closed position.

[0303] like Figure 34 As shown, the first spring 92A extends along the axial direction DA, with one end connected to the bottom wall 83A of the exhaust chamber 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 part 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 state, pulling the movable partition 64 back to the first closed position.

[0304] 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 inner cavity 39 of the device, for example, on the inner side of the bottom wall 34A of the lower cover. The first magnet 93A and the second magnet 93B attract each other magnetically, and the direction of this magnetic force is parallel to the axial direction DA. Since the internal structure of the venting cavity 84 is relatively simple, the second magnet 93B is located on the bottom wall 84A of the venting cavity, that is, on the outer side of the annular wall 83B. Correspondingly, the first magnet 93A is located on the partition flange 64A outside the first opening 41. Multiple pairs (e.g., 2-4 pairs) of the first magnet 93A and the second magnet 93B can be evenly distributed along the circumferential direction.

[0305] In the second to fourth embodiments, the movable partition assembly 36 no longer relies on the gravity of the floating sealing assembly 37, but rather on the force of other restoring components to move from the first open position to the first closed position. After the movable partition assembly 36 returns to its original position, the floating sealing assembly 37 can return to its original position under its own weight. In this embodiment, the force driving the movable partition assembly 36 towards the first open position is relatively greater, thereby allowing for a relatively higher pressure in the cooking chamber 22 before steam is released.

[0306] exist Figure 36In the fifth embodiment shown, the floating sealing assembly 37 is moved from the second open position to the second closed position by the third spring 92C. The third spring 92C is located between the upper cover top wall 31A and the floating member 71. When the steam pushes the floating sealing assembly 37 to the second open position by moving the baffle assembly, the third spring 92C is compressed. When the steam pressure drops, the third spring 92C restores and pushes the floating sealing assembly 37 back in the opposite direction, and pushes the moving baffle assembly 36 back to the first closed position by the floating sealing assembly 37. It can be understood that in this embodiment, the axial direction DA can not be the up-down direction.

[0307] Figure 37 In the sixth embodiment shown, the elastic member acting on the floating sealing assembly 37 is replaced by a flexible member 96, such as an elastic sleeve.

[0308] In the fifth and sixth embodiments, when the moving baffle assembly 36 moves towards the first open position, the moving baffle assembly 36 moves the floating sealing assembly 37 towards the second open position; when the floating sealing assembly 37 moves towards the second closed position, the floating sealing assembly 37 moves the moving baffle assembly 36 towards the first closed position. When the axial direction DA is the up-down direction, the floating sealing assembly 37 can reduce the self-weight due to the force exerted by the elastic member on the floating sealing assembly 37 to block the second opening 42.

[0309] In the fifth and sixth embodiments, the elastic member exerts a preset pressure on the floating sealing assembly 37, and when the air pressure in the switching cavity 82 is less than the preset pressure, the elastic member causes the floating sealing assembly 37 to be in the second closed position.

[0310] In Figure 38 In the seventh embodiment shown, 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 temperature, the temperature-sensitive deforming component 95 is in a contracted state, and the floating sealing assembly 37 relies on its own gravity to allow the blocking member 75 to block the second opening 42. When the cooking process enters the boiling maintenance process, the temperature of each part of the cooking appliance 100 rises, and the air path integration device 30 also rises in temperature. After the temperature-sensitive deforming component 95 is raised in temperature, it automatically deforms and expands, and pushes the blocking member 75 away from the second opening 42. After the temperature drops, the memory spring restores its elasticity and is compressed by the counterweight 78, so that the blocking member 75 can cover the mouth of the second opening 42. After the temperature drops, the bimetallic strip returns to its original state, so that the floating sealing assembly 37 can fall back.

[0311] 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.

[0312] 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.

[0313] 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.

[0314] In Figure 41 In the tenth embodiment shown in FIG. 10, the second one-way valve 35 is configured as a gravity ball. The axial direction of the third opening 43 is the up-down direction, and the gravity ball sits in the third opening 43 by its own gravity to close the third opening 43, and can be lifted by the airflow of the airflow generating device 14 to open the third opening 43.

[0315] In Figure 42 In the eleventh embodiment shown in FIG. 11, the second one-way valve 35 is configured as a pneumatic float. The axial direction of the third opening 43 is the up-down direction, and the pneumatic float sits in the third opening 43 by its own gravity to close the third opening 43, and can be lifted by the airflow of the airflow generating device 14 to open the third opening 43.

[0316] Of course, the air path integration device 30 can also be configured in other forms to integrate the air paths for suctioning negative pressure, discharging steam, and blowing cold air.

[0317] 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 a different order from the above-described processes. The order of the steps of the above-described processes can also be added, combined, or deleted as needed.

[0318] 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-terms, such as "comprise," "have," "include," and "contain," among others.

[0319] The term "attached" or "attach" as used herein includes a configuration in which an element is directly fixed to another element by fixing the element to the other element, a configuration in which an element is indirectly fixed to another element by fixing the element to an intermediate member, which in turn is fixed to the other element, and a configuration in which one element is integral with another element, i.e., one element is essentially a part of the other element. This definition also applies to words with similar meanings, such as "connected," "coupled," "joined," "fixed," "bonded," and derivatives thereof. Finally, degree terms such as "substantially," "approximately," and "about" as used herein mean an amount that does not significantly change the end result.

[0320] 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 in one embodiment can be applied to another embodiment, mutatis mutandis, unless that embodiment is inherently incompatible with the other embodiment.

[0321] The 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 application to the scope of the described embodiments. Furthermore, those skilled in the art can understand that the application is not limited to the above embodiments, and more various modifications and changes can be made according to the teachings of the application, which all fall within the scope of the application claimed.

Claims

1. A floating sealing assembly for opening and closing an airflow channel in a gas path integration device of a cooking appliance, wherein the axial direction of the airflow channel is vertical, characterized in that... The floating seal assembly includes: A floating element, extending through the airflow channel and movable vertically between an open position and a closed position, includes a first end and a second end disposed opposite to each other in an axial direction, the first end being positioned above the second end, and at least a portion of the floating element having a gap with the inner circumferential surface of the airflow channel; and A sealing element, connected to and moving synchronously with the floating element, is used to open the gap when the floating element is in the open position and to seal the gap when the floating element is in the closed position. The floating component is used to move upward under the action of an external force to be located in one of the open position and the closed position, and to move downward under the action of gravity of the floating sealing assembly to be located in the other of the open position and the closed position, wherein the mass of the floating sealing assembly is 1g to 50g.

2. A floating sealing assembly for opening and closing an airflow channel in a gas path integration device of a cooking appliance, wherein the axial direction of the airflow channel is vertical, characterized in that... The floating seal assembly includes: A floating element, extending through the airflow channel and movable vertically between an open position and a closed position, includes a first end and a second end disposed opposite to each other in an axial direction, the first end being positioned above the second end, and at least a portion of the floating element having a gap with the inner circumferential surface of the airflow channel; and A sealing element, connected to and moving synchronously with the floating element, is used to open the gap when the floating element is in the open position and to seal the gap when the floating element is in the closed position. The floating component is used to move upward under the action of an external force to be located in one of the open position and the closed position, and to move downward under the action of gravity of the floating sealing assembly to be located in the other of the open position and the closed position, wherein the mass of the floating sealing assembly is from 1g to 628g.

3. The floating sealing assembly according to claim 1 or 2, characterized in that, The sealing element comprises an elastic material.

4. The floating sealing assembly according to claim 1 or 2, characterized in that, The sealing element is connected to the first end of the floating element, and the open position is located above the closed position.

5. The floating sealing assembly according to claim 4, characterized in that, The first end of the floating member is used to extend out of the airflow channel to be positioned above the airflow channel, and the sealing member is used to cover the gap above the airflow channel when the floating member is in the closed position.

6. The floating sealing assembly according to claim 5, characterized in that, The radial dimension of the sealing component is 2-10 mm.

7. The floating sealing assembly according to claim 5, characterized in that, The sealing member is provided with a mounting hole, and the first end of the floating member passes through the mounting hole, so that the sealing member is sleeved on the outer periphery of the first end of the floating member.

8. The floating sealing assembly according to claim 7, characterized in that, The outer periphery of the first end of the floating member is provided with a first mounting groove extending in the circumferential direction for accommodating the portion of the sealing member located around the mounting hole.

9. The floating sealing assembly according to claim 4, characterized in that, The floating sealing assembly also includes a counterweight, which is disposed at the first end of the floating member and located above the sealing member.

10. The floating sealing assembly according to claim 1 or 2, characterized in that, The second end of the floating component is used to extend out of the airflow channel to be located below the airflow channel.

11. The floating sealing assembly according to claim 10, characterized in that, The floating sealing assembly further includes a limiting member connected to the second end of the floating member, the limiting member having a radial dimension larger than the radial dimension of the airflow channel.

12. The floating sealing assembly according to claim 11, characterized in that, The limiting member is sleeved on the outer periphery of the second end of the floating member.

13. The floating sealing assembly according to claim 12, characterized in that, The limiting member is constructed as a limiting ring made of an elastic material; and / or The outer periphery of the second end of the floating member is provided with a second mounting groove extending in the circumferential direction for accommodating the limiting member.

14. The floating sealing assembly according to claim 10, characterized in that, The floating component further includes a floating component connecting portion located between the first end and the second end of the floating component, and the floating component connecting portion has a gap with the inner circumferential surface of the airflow channel.

15. The floating sealing assembly according to claim 14, characterized in that, The outer peripheral surface of the floating component connection is provided with at least one third groove extending in the axial direction, so that there is a gap between the floating component connection and the inner peripheral surface of the airflow channel; and / or The radial dimension of the floating component connection is smaller than the radial dimension of the airflow channel, and the floating component connection is used for clearance fit with the airflow channel.

16. The floating sealing assembly according to claim 1 or 2, characterized in that, The mass of the floating sealing assembly is 5g to 20g.

17. The floating sealing assembly according to claim 2, characterized in that, The mass of the floating sealing assembly is between 3g and 200g.

18. A gas path integration device for cooking appliances, characterized in that, include: A device housing that encloses the inner cavity of the device; An airflow channel is provided in the inner cavity of the device to allow airflow to pass through, and the axial direction of the airflow channel is vertical. and The floating sealing assembly according to any one of claims 1 to 17, wherein the floating member extends through the airflow channel and is movable up and down in the airflow channel, and at least a portion of the floating member has a gap with the inner peripheral surface of the airflow channel.

19. The gas path integration device according to claim 18, 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, which is used to connect to the second end of the floating member. The action component is configured to move upward under the action of the steam pressure in the cooking cavity to push the floating member upward.

20. The gas path integration device according to claim 18, characterized in that, The gas path integration device further includes a driving component, which acts on the first end of the floating member to move the floating member upward.

21. The gas path integration device according to claim 20, characterized in that, The driving component includes a motor or a push-pull electromagnet; or The floating component comprises a ferromagnetic material, and the driving component comprises an electromagnet, which is disposed within the inner cavity of the device and located above the first end of the floating component; or The driving component includes a temperature-sensitive deformation component.

22. The gas path integration device according to any one of claims 18 to 21, characterized in that, The floating component further includes a floating component connecting portion located between the first end and the second end of the floating component. The radial dimension of the floating component connecting portion is smaller than the radial dimension of the airflow channel, and the floating component connecting portion is clearance-fitted with the airflow channel.

23. The gas path integration device according to claim 22, characterized in that, The radial dimension of the floating component connection is 0.1 mm to 10 mm smaller than the radial dimension of the airflow channel.

24. The gas path integration device according to claim 23, characterized in that, The radial dimension of the floating component connection is 0.2 mm to 2 mm smaller than the radial dimension of the airflow channel.

25. A cooking utensil, characterized in that, include: The cooking cavity is used to hold the ingredients; and The gas path integration device according to any one of claims 18 to 24, The inner cavity of the device is connected to the cooking cavity.

26. The cooking utensil according to claim 25, characterized in that, 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 both the airflow inlet and the airflow outlet, and the airflow channel is arranged in the air path connecting the airflow inlet and the airflow outlet.

27. The cooking utensil according to claim 26, characterized in that, The cooking appliance also includes: The pot body, wherein the pot body is provided with the cooking cavity; and A lid is used to cover the pot body. The airflow generating device and the air path integration device are disposed on the lid. When the lid covers the pot body, the inner cavity of the device is connected to the cooking cavity.

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