Steam channel assembly, detachable cover assembly, cover body and cooking utensil

Abstract

The utility model discloses a steam channel assembly, a detachable cover assembly, a cover body and a cooking utensil, the steam channel assembly comprises a channel bottom shell and a complementary cooking steam channel assembly, the complementary cooking steam channel assembly is connected to the channel bottom shell and used for forming a complementary cooking steam supply channel, and the complementary cooking steam channel assembly comprises a complementary cooking steam adjusting piece; the complementary cooking steam adjusting part is movably arranged between a first position where the complementary cooking steam supply channel is closed and a second position where the complementary cooking steam supply channel is opened, and the complementary cooking steam adjusting part is configured to move from the first position to the second position under the thrust of complementary cooking steam. The complementary cooking steam supply channel is automatically switched from a closed state to an open state, and complementary cooking steam with a certain steam inlet amount rapidly flows forwards under the action of pressure difference and then is instantly sprayed into a cooking cavity; in this way, the time for supplying the complementary cooking steam into the cooking cavity can be shortened, the steam inlet amount of the complementary cooking steam in unit time is increased, and therefore the taste of food is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to a steam passage assembly, a detachable cover assembly, a cover body and a cooking appliance. BACKGROUND

[0002] The existing steam cooking appliances such as steam rice cookers are provided with steam generating devices. In order to transport the high-temperature steam of the steam generating device to the cooking cavity, a steam inlet passage is further provided in the cover body. During the cooking stage, the high-temperature steam is introduced into the cooking cavity through the steam inlet passage, so as to heat and moisten the food in the cooking cavity with the high-temperature steam.

[0003] However, since the steam inlet passage is open and the steam inlet passage is in a pressureless environment, no matter how much steam is generated, it will be guided to the cooking cavity by the steam inlet passage. The steam slowly drifts forward in the pressureless environment of the steam inlet passage, resulting in insufficient amount of steam sprayed into the cooking cavity at a moment and too long time.

[0004] Therefore, there is a need for a steam passage assembly to at least partially solve the above problems. SUMMARY

[0005] A series of simplified concepts are introduced in the summary part of the application, which will be further described in detail in the detailed description part. The summary part of the application does not mean to try to limit the key features and necessary technical features of the claimed technical solution, nor to try to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above problems, the present application provides a steam passage assembly for a cover body of a cooking appliance, the steam passage assembly comprising:

[0007] a passage bottom shell;

[0008] a supplementary cooking steam passage assembly connected to the passage bottom shell and used to form a supplementary cooking steam supply passage, the supplementary cooking steam passage assembly comprising a supplementary cooking steam regulating member movably arranged between a first position for closing the supplementary cooking steam supply passage and a second position for opening the supplementary cooking steam supply passage,

[0009] wherein the supplementary cooking steam regulating member is configured to be moved from the first position to the second position by the pushing force of the supplementary cooking steam.

[0010] According to the scheme, the steam for cooking supplement will generate a pushing force to move the steam for cooking supplement adjusting part towards the second position after reaching a certain steam intake, so that the steam supply channel for cooking supplement is automatically switched from the closed state to the open state, at this time the steam for cooking supplement with a certain steam intake flows forward quickly under the action of pressure difference, and then is sprayed into the cooking cavity instantaneously. In this way, the time for supplying the steam for cooking supplement into the cooking cavity is shortened, the steam intake per unit time of the steam for cooking supplement is increased, and the taste of food is improved, and the problem of rapid yellowing of food is better avoided.

[0011] Optionally, the steam for cooking supplement adjusting part is configured as a moving block with a cavity, the cavity forms part of the steam supply channel for cooking supplement and is provided with a steam passage, wherein the moving block moves horizontally and blocks the steam passage to close the steam supply channel for cooking supplement at the first position, and opens the steam passage to open the steam supply channel for cooking supplement at the second position. According to the scheme, the moving block is a component for adjusting the opening and closing of the steam supply channel for cooking supplement, and is also a component constituting the steam supply channel for cooking supplement. The steam passage on the moving block can be opened or blocked with the movement of the moving block, so as to realize the opening or closing of the steam supply channel for cooking supplement. The structure of the scheme is more accurate in controlling the steam intake of the steam for cooking supplement, and the flow of the steam for cooking supplement in the steam supply channel for cooking supplement is more stable.

[0012] Optionally, the steam channel assembly further comprises a reset elastic member for providing an elastic force to move the moving block towards the first position. According to the scheme, the reset elastic member can keep the moving block at the first position and automatically reset the moving block from the second position to the first position, so that the steam supply channel for cooking supplement is automatically switched from the open state to the closed state. The pushing force of the steam for cooking supplement and the elastic force of the reset elastic member are opposite to each other, so that the moving block can move reciprocally on the channel bottom shell to switch the open state and the closed state of the steam supply channel for cooking supplement.

[0013] Optionally, the steam passage is provided on the bottom wall of the cavity, and the channel bottom shell is provided with a blocking part located on the lower side of the bottom wall of the cavity to block the steam passage. According to the scheme, the blocking part can tightly adhere to the bottom wall of the cavity under the action of the downward pressure of the moving block, and the blocking effect on the steam passage is good.

[0014] Optionally, the steam channel assembly further comprises a resilient tubular member, one end of the tubular member is sealingly connected with the moving block, and the moving block moves together with the one end of the tubular member when the moving block moves, and a lumen of the tubular member forms a part of the steam supply channel. According to the scheme, the lumen of the tubular member constitutes a part of the steam supply channel, and the movement of the tubular member does not affect the overall communication effect of the steam supply channel, and the tubular member itself has a sealing function and an elastic deformation capability, so that the two ends of the tubular member can be directly connected with adjacent components and have good sealing performance, without the need for fasteners such as screws and additional sealing rings, thereby reducing the number of components of the steam channel assembly, simplifying the structure, and simplifying the assembly process.

[0015] Optionally, the steam channel assembly further comprises a hollow steam receiving column, the steam receiving column is fixedly arranged and sealingly connected with the other end of the tubular member. According to the scheme, the steam receiving column can easily connect the tubular member to the assembly and form a bridge connecting the steam generator and the tubular member, thereby preventing the steam from leaking out.

[0016] Optionally, the steam channel assembly further comprises a steam receiving column, the steam receiving column is fixedly arranged and sealingly connected with the other end of the tubular member. According to the scheme, the steam receiving column can easily connect the tubular member to the assembly and form a bridge connecting the steam generator and the tubular member, thereby preventing the steam from leaking out.

[0017] Optionally, the steam channel assembly further comprises a steam receiving column, the steam receiving column is fixedly arranged and sealingly connected with the other end of the tubular member. According to the scheme, the steam receiving column can easily connect the tubular member to the assembly and form a bridge connecting the steam generator and the tubular member, thereby preventing the steam from leaking out.

[0018] Optionally, the steam channel assembly further comprises a steam receiving column, the steam receiving column is fixedly arranged and sealingly connected with the other end of the tubular member. According to the scheme, the steam receiving column can easily connect the tubular member to the assembly and form a bridge connecting the steam generator and the tubular member, thereby preventing the steam from leaking out.

[0019] Optionally, the stop component comprises a stop block, which is movable between a retreat position allowing the movement of the moving block and a stop position blocking the movement of the moving block in the second position. According to the present solution, compared with the rod-shaped member, the block-shaped stop block can have more contact surface with the moving block, effectively preventing the moving block in the second position from moving towards the first position.

[0020] Optionally, the stop block is vertically movable and has a first inclined surface oppositely inclined to the vertical direction, the first inclined surface being opposite to the direction in which the moving block moves towards the first position, and the moving block has a second inclined surface matched with the first inclined surface. According to the present solution, by means of the two inclined surfaces, the stop block can smoothly enter the recess and provide a component force for moving the moving block towards the second position, promoting the moving block to move towards the second position; and the moving block can provide a component force for moving the stop block upwards when moving towards the first position, causing the stop block to automatically and smoothly exit the recess.

[0021] Optionally, the stop component further comprises a pushing elastic member for providing an elastic force for moving the stop block towards the stop position. According to the present solution, the pushing elastic member can automatically move the stop block to the stop position and keep it in the stop position, ensuring that the moving block can be continuously kept in the second position.

[0022] Optionally, the steam supplementing steam regulating member is configured to have a blocking member with a certain weight, the blocking member being vertically movable and blocking the steam supplementing steam inlet in the first position to close the steam supplementing steam supply passage, and opening the steam supplementing steam inlet in a second position above the first position to open the steam supplementing steam supply passage. According to the present solution, the steam supplementing steam inlet can be opened or blocked by the movable blocking member, thereby realizing the opening or closing of the steam supplementing steam supply passage; the blocking member is kept in the first position by its own gravity and automatically resets to the first position from the second position, so that the steam supplementing steam supply passage is automatically switched from the open state to the closed state. The thrust of the steam supplementing steam and the gravity of the blocking member are opposite to each other, so that the blocking member can reciprocate on the passage bottom shell to switch the open state and the closed state of the steam supplementing steam supply passage. The structure of the present solution is simpler, facilitating production and manufacture, and having lower manufacturing cost.

[0023] Optionally, the blocking member comprises a blocking main body for blocking the steam supplementing steam inlet and a counterweight block installed in the blocking main body. According to the present solution, the separate counterweight block can make the blocking member have a desired weight, which is beneficial to miniaturization of the blocking member and avoids occupying too much space in the steam supplementing steam supply passage.

[0024] Optionally, the blocking member comprises a blocking body, the blocking body is provided with a bendable connecting portion, the connecting portion is fixed to the channel bottom shell, and the blocking member is pivotable at the connecting portion between the first position and the second position. According to the scheme, the deformation of the connecting portion can make the blocking member pivot, and the pivoting of the blocking member can automatically switch the cooking steam supply channel from the open state to the closed state, and the blocking structure is simpler.

[0025] Optionally, the cooking steam channel assembly further comprises a cooking steam channel sealing member, and the blocking body is integrally formed with the cooking steam channel sealing member at the connecting portion. According to the scheme, the material of the blocking member is also a sealing material, which can act as a sealing member to seal the cooking steam inlet in the first position.

[0026] Optionally, the cooking steam channel assembly further comprises a pressing plate, the pressing plate is provided with a through hole, the edge of the through hole is pressed against the part of the connecting portion and the part of the cooking steam channel sealing member, and the blocking member is pivoted upward through the through hole. According to the scheme, the pressing plate can limit the position of the part of the cooking steam channel sealing member connected to the blocking member, so as to avoid displacement of the part of the cooking steam channel sealing member with the pivoting of the blocking member, thereby avoiding the deviation of the position caused by the reciprocating pivoting of the blocking member.

[0027] Optionally, the steam channel assembly further comprises a channel top shell, the channel top shell is connected to the channel bottom shell and forms a cooking steam discharge channel therebetween. According to the scheme, two independent members that can be covered up and down are used as the basic members of the cooking steam discharge channel, one part of the cooking steam discharge channel is formed by the channel bottom shell or the components thereon, and the other part is formed by the channel top shell, so that the production and manufacturing of the steam channel assembly are easier.

[0028] Optionally, the channel top shell is provided with a cooking steam outlet, the cooking steam regulating member is configured as a moving block having a steam passing port, the moving block blocks the steam passing port and opens the cooking steam outlet when located at the first position, so that the cooking steam discharge channel is communicated with the cooking steam outlet, and the moving block opens the steam passing port and blocks the cooking steam outlet when located at the second position, so that the cooking steam supply channel is communicated with the cooking steam discharge channel through the steam passing port. According to the scheme, the cooking steam discharge channel and the cooking steam supply channel share a section of the channel, so that the two steam channels occupy the same area in the cover body, the structure of the two steam channels can be more compactly arranged, the internal space in the cover body is occupied less, which is conducive to the miniaturization of the cover body and improves the utilization rate of the internal space. When the cooking steam is supplied to the cooking cavity, the cooking steam received by the cooking cavity can be kept in the cooking cavity because the cooking steam outlet is blocked by the moving block, and the cooking steam is not discharged through other channels communicated with the cooking steam outlet. Thus, the overflow of the cooking steam is avoided, the utilization rate of the cooking steam is greatly improved, and the load of producing effective cooking steam is reduced.

[0029] Optionally, the channel bottom shell is provided with a hollow steam inlet and outlet part, the steam inlet and outlet part is communicated with the cooking steam discharge channel, and a steam inlet and outlet opening at the bottom end of the steam inlet and outlet part is used as a cooking steam outlet and a cooking steam inlet. According to the scheme, the cooking steam and the cooking steam are respectively flowed from the common port at different time periods, and the outlet and inlet of the two kinds of steam are not respectively arranged in different areas, so that the structure of the assembly is simplified, and the space utilization is improved.

[0030] Optionally, the cooking steam channel assembly occupies the area of the channel bottom shell outside the cooking steam discharge channel. According to the scheme, the cooking steam supply channel is independent of the area where the cooking steam discharge channel is located, and the structures of the two steam channels can be separately arranged, so that the design freedom is larger.

[0031] Alternatively, the cooking steam channel assembly is located in the cooking steam discharge channel. According to the scheme, the cooking steam supply channel is contained in the inside of the cooking steam discharge channel, occupies the space inside the cooking steam discharge channel, so that the two steam channels occupy the same area in the cover body, and the structure of the two steam channels can be more compactly arranged, so that the internal space in the cover body is small, which is beneficial to the miniaturization of the cover body, and improves the utilization of the internal space. And the internal temperature of the cooking steam discharge channel is higher, so that the cooking steam supply channel can maintain a higher temperature, on the one hand, the steam in the cooking cavity has less heat loss when passing through the cooking steam supply channel, so that the cooking steam has a higher temperature and a better cooking effect; on the other hand, the steam in the cooking cavity is not condensed and liquefied when transmitting in the cooking steam supply channel, so that the water droplets mixed in the cooking steam do not affect the cooking effect. The scheme reduces the heat loss of the cooking steam in the transmission process, effectively ensures the best effect of moisture retention of food such as rice.

[0032] Optionally, the channel bottom shell is provided with a hollow steam inlet and outlet part, the cooking steam outlet of the cooking steam supply channel and the cooking steam inlet of the cooking steam discharge channel are concentrated in the steam inlet and outlet part. According to the scheme, the cooking steam outlet and the cooking steam inlet are concentrated in a relatively small area, and sealing members and sealing structures do not need to be arranged at the two ports respectively, so that the manufacturing and assembly processes are simplified, and the structure is also more simple.

[0033] Alternatively, the cooking steam outlet of the cooking steam supply channel and the cooking steam inlet of the cooking steam discharge channel are respectively arranged in different areas of the channel bottom shell. According to the scheme, the cooking steam outlet and the cooking steam inlet each occupy an area, and the structures of the two steam ports can be separately arranged, so that the design freedom is larger.

[0034] According to another aspect of the present application, a detachable lid assembly is provided for a lid of a cooking appliance, the detachable lid assembly is detachably mounted on the lid and comprises the steam passage assembly according to any of the above aspects, and the steam passage assembly is arranged adjacent to a rear end of the detachable lid assembly.

[0035] According to the present aspect, the detachable lid assembly can be used to arrange the steam passage assembly in a region adjacent to the rear end of the detachable lid assembly, and the cooking steam supply passage is provided with the cooking steam regulating member, so that the lid can obtain the above technical effects brought by the cooking steam regulating member.

[0036] Optionally, the detachable lid assembly further comprises a cover plate and a cover plate seat connected to the cover plate, and the steam passage assembly is arranged on the same side of the cover plate seat and the cover plate. According to the present aspect, the cover plate seat and the cover plate can jointly support the steam passage assembly, and the rear space of the detachable lid assembly outside the cooking area can be better utilized in design to arrange the steam passage with a longer extension path, and the area ratio of the steam passage assembly on the cover plate can be reduced.

[0037] Optionally, the inlet and outlet of the passage bottom shell is arranged in a region adjacent to the rear end of the cover plate. According to the present aspect, the cooking steam is supplied from the rear region of the lid to the cooking cavity, and the cooking steam in the cooking cavity is discharged from the rear region of the lid, and when the lid is opened, the inlet and outlet can be observed from a smaller region inside the lid, the user's visual experience is better, and the integrity of the inside appearance of the product is better.

[0038] The cooking steam docking cover of the steam passage assembly is connected to or integrally arranged in a corner region adjacent to the rear end of the cover plate seat. According to the present aspect, the position of the cooking steam docking cover can correspond to the water container in the pot body up and down, and the cooking steam enters the cooking steam inlet on the cooking steam docking cover from bottom to top, so that the steam path between the cooking steam inlet and the steam generating device is shorter and straight.

[0039] According to still another aspect of the present application, a lid is provided for a cooking appliance, the lid comprises the steam passage assembly according to any of the above aspects, or the lid comprises the detachable lid assembly according to any of the above aspects. According to the present aspect, the cooking steam supply passage in the lid is provided with the cooking steam regulating member, so that the lid can obtain the above technical effects brought by the cooking steam regulating member.

[0040] According to another aspect of the present application, a cooking appliance is provided, the cooking appliance comprises the lid according to any of the above aspects, a pot body, and a steam generating device, the lid is openably arranged on the pot body to form a cooking cavity between the lid and the pot body, and the steam generating device is arranged on the lid or the pot body to supply steam to the cooking steam supply passage.

[0041] According to this solution, the cooking appliance can have the function of supplementing the cooking cavity with steam, wherein the supplementing steam supply channel in the cover is provided with a supplementing steam regulator, so that the cooking appliance can obtain the above-mentioned technical effect brought by the supplementing steam regulator. Attached Figure Description

[0042] The following drawings, which are incorporated herein by reference and used to understand this application, illustrate embodiments of the application and their descriptions, thereby explaining the principles of the application.

[0043] In the attached image:

[0044] Figure 1 An exploded perspective view of a removable cover assembly with a steam passage assembly according to the first embodiment of this application.

[0045] Figure 2 for Figure 1 The top view of the removable cover assembly is shown, with lines AA and BB displayed.

[0046] Figure 3 For along Figure 2 A cross-sectional view of the removable cover assembly cut along the center line AA;

[0047] Figure 4 For along Figure 2 A cross-sectional view of the removable cover assembly cut along the center line BB;

[0048] Figure 5 for Figure 1 The top view of the removable cover assembly is shown, illustrating lines CC and DD.

[0049] Figure 6 For along Figure 2 A cross-sectional view of the removable cover assembly cut along the center line AA;

[0050] Figure 7 For along Figure 2 A cross-sectional view of the removable cover assembly cut along the center line DD;

[0051] Figure 8 for Figure 2 Another cross-sectional view of the removable cover assembly shown;

[0052] Figure 9 for Figure 1 An exploded 3D view of the moving block shown;

[0053] Figure 10 for Figure 1 A perspective view of a portion of the removable cover assembly shown;

[0054] Figure 11 for Figure 8 The diagram in section A;

[0055] Figure 12 for Figure 1 An exploded 3D view of the stop component;

[0056] Figure 13 This is a cross-sectional view of the steam passage assembly and lining according to the second embodiment of this application;

[0057] Figure 14 An exploded perspective view of a removable cover assembly with a steam passage assembly according to a third embodiment of this application.

[0058] Figure 15 for Figure 14 A partial exploded view of the steam passage seal and plug shown;

[0059] Figure 16 for Figure 14 A cross-sectional view of the removable cover assembly with steam passage shown;

[0060] Figure 17 for Figure 16 Enlarged view of section B.

[0061] Explanation of reference numerals in the attached figures:

[0062] 1. Removable cover assembly 2. Cover plate

[0063] 3. Cover plate seat; 4. Pot opening sealing ring

[0064] 5 support sections and 6 steam inlet / outlet passages

[0065] 10 / 100 / 200 Steam Channel Assembly 11 Channel Bottom Shell

[0066] 12-channel top shell, 13 cooking steam outlets

[0067] 14 Steam inlet for supplementary cooking; 15 Steam docking cover for supplementary cooking.

[0068] 16 Steam connection seal for cooking; 17 Steam inlet / outlet section

[0069] 18 Steam inlet / outlet ports 19 Steam inlet / outlet port seals

[0070] 20. Sealing section 21. Steam column connection

[0071] 22 Cavity 23 Hook Joint

[0072] 24 Limiting wall 25 Stop section

[0073] 26 Sliding rail 27 Protrusion

[0074] 28 connector 29 protrusion

[0075] 30 Installation cylinder 31 Cylinder cover

[0076] 32guide wall 33top shell fixing portion

[0077] 34top shell cavity portion 35inner cavity

[0078] 36support wall 40steam supplementing steam passage assembly

[0079] 41steam passing port 42moving block

[0080] 43tubular member 44cavity

[0081] 45tubular cavity 46sliding portion

[0082] 47sliding convex rib 48moving block body

[0083] 49moving block gland 50recess

[0084] 51second inclined surface 52steam passing column

[0085] 61reset elastic member 62passage sealing member

[0086] 63pressing plate 70stop assembly

[0087] 71stop block 72pushing elastic member

[0088] 73first inclined surface 74leak-proof sealing member

[0089] 75boss 76groove

[0090] 101inner liner 102steam generating device

[0091] 103steam inlet column 104hose

[0092] 105steam supplementing steam inlet sealing member 106steam inlet port

[0093] P1steam supplementing steam supply passage P2cooking steam discharging passage

[0094] 7steam supplementing steam regulating member 101cooking steam inlet

[0095] 102steam supplementing steam outlet 210plugging member

[0096] 211plugging body 212counterweight

[0097] 213connecting portion 214cavity

[0098] 240steam supplementing steam passage assembly 262steam supplementing steam passage sealing member

[0099] 263first pressing plate 264cooking steam passage sealing member

[0100] 265 second pressure plate 266 first through hole

[0101] 267 second through hole DETAILED DESCRIPTION

[0102] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, it will be apparent to one skilled in the art that the application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail to the extent that they would obscure the understanding of the application.

[0103] For a thorough understanding of the application, reference will be made to the following description in combination with the accompanying drawings. It is apparent that the application can be practiced without one or more of the specific details set forth herein. Certain terminology is used in the description and the claims below for the purpose of clarity in understanding the broadness and scope of the application. No limitation is intended to the features of the preferred embodiments described.

[0104] It is to be noted that the terminology used herein is for the purpose of describing the particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0105] Numerical ordinals such as "first" and "second" as used herein are merely identifiers and do not imply any particular order or ranking unless the context clearly indicates so. Also, the term "first component" does not imply the existence of a "second component" and the term "second component" does not imply the existence of a "first component" unless the context clearly indicates so.

[0106] It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and similar terms are used only for the purpose of illustration and not as terms of limitation.

[0107] Exemplary embodiments according to this application will now be described in detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in various manners, and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided in order to make the present disclosure complete and thorough, and to fully convey the concept of these exemplary embodiments to those having ordinary skill in the art.

[0108] The present application provides a cooking appliance, which includes a pot body and a cover body. The pot body has a cylindrical inner pot receiving portion. An inner pot can be fixedly arranged at the inner pot receiving portion, or can be freely put into or taken out of the inner pot receiving portion to facilitate cleaning of the inner pot. The inner pot is usually made of a metal material and has a circular opening on the upper surface for containing materials to be heated, such as rice, soup, etc. The pot body includes an inner pot heating device, such as a heating plate, for heating the inner pot.

[0109] It can be understood that the cooking appliance according to the present application can be an electric rice cooker, an electric pressure cooker or other cooking appliance, and the cooking appliance can have various functions in addition to the function of cooking rice, such as cooking porridge.

[0110] The cover body has a shape substantially corresponding to that of the pot body. The cover body is arranged on the pot body in an openable and closable manner. In one example, the cover body is pivotally connected to the pot body by a pivot shaft and can be freely pivoted about a pivot axis defined by the pivot shaft between a closed position and an open position relative to the pot body to facilitate closing and opening of the pot body. In another example, the cover body is connected to the pot body by fasteners that cooperate with each other and are easy to disassemble, so that the two are tightly connected together during cooking, and are disassembled into two independent whole bodies during cleaning, for example. When the cover body is closed on the pot body, it covers the inner pot and forms a cooking cavity with the inner pot. The cover body usually also has a pot opening sealing ring made of, for example, rubber material, which is arranged between the cover body and the inner pot to seal the cooking cavity when the cover body is in the closed state.

[0111] It should be noted that the directional terms used herein in describing various components, parts, etc. of the cooking appliance, such as "upper", "lower", "upper side", "lower side", "upward", "downward", "upwardly", "downwardly", etc. are relative to the cooking appliance in a horizontal placement, upright state and with the cover body in a closed state.

[0112] The cover body basically includes a cover main body. The cover main body includes an inner liner and a face cover assembly. The face cover assembly is arranged on the upper side or outer side of the inner liner and can cover the inner liner. The upper surface of the face cover assembly is provided with a user interaction area for user operation. The inner liner can be connected to the face cover assembly by suitable means such as clamping, fastener connection such as screws, adhesion, etc. The pivot shaft is arranged on the inner liner and is sleeved with a torsional spring to automatically open the cover.

[0113] In one example, the cover body further includes a detachable cover assembly 1 (see Figure 1). The detachable cover assembly 1 is located at the lower side of the cover body and detachably connected to the cover body in the form of an assembly, so that the detachable cover assembly 1 is detachably mounted on the cover body from the lower side. When the detachable cover assembly 1 needs to be cleaned, the detachable cover assembly 1 can be detached from the cover body. Specifically, the detachable cover assembly 1 is arranged at the lower side or inner side of the inner liner and detachably connected to the inner liner. For example, the detachable cover assembly 1 is movably connected to the inner liner through a plug-in and / or clamping structure. The detachable cover assembly 1 basically comprises a cover plate 2, a cover plate seat 3 and the above-mentioned pot opening sealing ring 4. The cover plate 2 can be selected as a metal plate. At least part of the lower surface of the cover plate 2 forms the top surface of the cooking cavity. The cover plate seat 3 can detachably connect the cover plate 2 to the inner liner. The cover plate 2 can be connected to the cover plate seat 3 by other suitable means such as buckles or fasteners. Part of the pot opening sealing ring 4 is pressed between the cover plate 2 and the cover plate seat 3.

[0114] In another alternative example, the cover body comprises the above-mentioned cover plate 2, which is fixedly connected to the cover body, specifically to the inner liner, so that the cover plate 2 is non-detachably mounted on the cover body.

[0115] The cooking appliance of the present application also has the function of steam cooking. High-temperature steam can be delivered into the cooking cavity to heat and moisten the food in the cooking cavity. For example, high-temperature steam can be supplied to the cooking cavity during the heat preservation stage to keep the food such as rice moist and prevent the food from drying out and turning yellow. Specifically, the cooking appliance further comprises a steam generating device for generating cooking steam to cook the food in the cooking cavity. In order to deliver the cooking steam to the cooking cavity, the cover body is provided with a cooking steam supply passage P1 (see Figure 6 ) which communicates with the cooking cavity. The cooking steam supply passage P1 is used for supplying the cooking steam for the cooking cavity, specifically for receiving the cooking steam from the steam generating device and delivering the cooking steam to the cooking cavity.

[0116] The steam generating device is arranged in the pot body. The steam generating device basically comprises a water container and a water container heating device. The water container is arranged in the pot body and can store water for generating cooking steam. The water container has a top opening for forming an outlet so that the cooking steam can overflow. The water container heating device is usually arranged below the water container and is used for heating the water in the water container to generate cooking steam. The cooking steam can enter the cooking steam supply passage P1 and then enter the cooking cavity to keep the food such as rice in the inner pot moist.

[0117] When the cooking appliance is cooking, heating the food and water in the inner pot will generate cooking steam. In order to exhaust the cooking steam to the outside environment, the cover body is further provided with a cooking steam exhaust passage P2 (see Figure 3) and a cooking steam exhaust passage, the cooking steam exhaust passage P2 connecting the cooking cavity and the cooking steam exhaust passage. The cooking steam can first enter the cooking steam exhaust passage P2 and then be exhausted to the outside environment through the cooking steam exhaust passage.

[0118] In order to simplify the structure and optimize the utilization of the space inside the cover, the present application uses one component to jointly form the cooking steam supply passage P1 and the cooking steam exhaust passage P2, instead of using different components to form the two passages respectively. Specifically, as shown in Figure 1 The cover further includes a steam passage component 10 for forming the cooking steam supply passage P1 and the cooking steam exhaust passage P2. The steam passage component 10 is located on the upper side of the cover plate 2 and the lower side of the inner liner. The inner liner has a recess for accommodating the steam passage component 10. The recess is located on the rear side of the opening of the inner liner and is recessed upward from the lower surface of the inner liner. At least part of the steam passage component 10 is accommodated in the recess.

[0119] Figures 1 to 12 The steam passage component 10 according to the first embodiment of the present application is shown. As shown in Figures 1 to 7 The steam passage component 10 includes a passage bottom shell 11 and a passage top shell 12. The passage top shell 12 is located on the upper side of the passage bottom shell 11 and can be detachably connected to the passage bottom shell 11. The outer periphery profiles of the passage bottom shell 11 and the passage top shell 12 correspond in shape and size, and the outer periphery profiles of the passage bottom shell 11 and the passage top shell 12 are shown to be generally triangular in shape in the figure. The passage bottom shell 11 is connected to the passage top shell 12 and forms the cooking steam supply passage P1 and the cooking steam exhaust passage P2 therebetween. The steam passage component 10 is installed on the detachable cover assembly 1, so that the steam passage component 10 is detached from the cover together with the detachable cover assembly 1, and the two steam passages on the steam passage component 10 are cleaned. For the example shown in the figure, the passage bottom shell 11 is installed on the detachable cover assembly 1, and the passage top shell 12 is detachably connected to the passage bottom shell 11. Alternatively, the passage top shell 12 can be detachably connected to the passage bottom shell 11 by a snap structure or fasteners such as screws.

[0120] The steam passage component 10 is arranged on the same side of the cover plate 2 and the cover plate seat 3. The cover plate seat 3 and the cover plate 2 can jointly support the steam passage component 10, and the design can better utilize the rear space of the detachable cover assembly 1 outside the cooking area to arrange the steam passage with a longer extension path. Specifically, the cover plate seat 3 includes a plate-shaped seat support portion 5 which protrudes from the rear of the cover plate 2. The steam passage component 10 is arranged on the cover plate 2 and the seat support portion 5. The passage bottom shell 11 can be connected to the cover plate 2 and the seat support portion 5 by suitable means such as passage welding, fastener connection such as screws, etc.

[0121] As shown in Figure 3 and Figure 4As shown, the channel top shell 12 is connected with the channel bottom shell 11 and forms the cooking steam discharging channel P2 therebetween. The channel top shell 12 forms the upper portion of the cooking steam discharging channel P2, and the channel bottom shell 11 and the components thereon form the lower portion of the cooking steam discharging channel P2. The channel top shell 12 is provided with a cooking steam outlet 13 at the portion forming the cooking steam discharging channel P2. The steam channel assembly 10 further comprises a reheat steam channel assembly 40. The reheat steam channel assembly 40 is movably arranged on the channel bottom shell 11 and at least partially located inside the cooking steam discharging channel P2. The illustrated example shows that the reheat steam channel assembly 40 is entirely located inside the cooking steam discharging channel P2. The reheat steam channel assembly 40 is used to form a reheat steam supplying channel P1 and is provided with a steam passing port 41 communicating with the reheat steam supplying channel P1.

[0122] The reheat steam channel assembly 40 is movable relative to the channel bottom shell 11 between a first position (see Fig. 1) in which the steam passing port 41 is blocked and the cooking steam outlet 13 is open, and a second position (see Fig. 2) in which the steam passing port 41 is open and the cooking steam outlet 13 is blocked. The first position is also referred to as an initial position. When the reheat steam channel assembly 40 is located at the first position, the cooking steam discharging channel P2 communicates with the cooking steam outlet 13; when the reheat steam channel assembly 40 is located at the second position, the cooking steam discharging channel P2 communicates with the reheat steam supplying channel P1 via the steam passing port 41. Figure 3 Figure 6 The reheat steam channel assembly 40 is movable relative to the channel bottom shell 11 between a first position (see Fig. 1) in which the steam passing port 41 is blocked and the cooking steam outlet 13 is open, and a second position (see Fig. 2) in which the steam passing port 41 is open and the cooking steam outlet 13 is blocked. The first position is also referred to as an initial position. When the reheat steam channel assembly 40 is located at the first position, the cooking steam discharging channel P2 communicates with the cooking steam outlet 13; when the reheat steam channel assembly 40 is located at the second position, the cooking steam discharging channel P2 communicates with the reheat steam supplying channel P1 via the steam passing port 41.

[0123] The cooking steam and the reheat steam in the present embodiment flow through the cooking steam discharging channel P2 at different time periods. The cooking steam discharging channel P2 and the reheat steam supplying channel P1 share a section of the channel, so that these two steam channels occupy the same area inside the cover body, and the structures constituting these two steam channels can be more compactly arranged, so that the internal space inside the cover body is less occupied, which is conducive to the miniaturization of the cover body and improves the utilization rate of the internal space. The movement of the reheat steam channel assembly 40 can realize the switching of the communication and non-communication between the cooking steam discharging channel P2 and the reheat steam supplying channel P1. When the reheat steam is fed into the cooking cavity, because the cooking steam outlet 13 is blocked by the reheat steam channel assembly 40, the reheat steam received by the cooking cavity can be kept inside the cooking cavity, and it is not discharged outside via other channels communicating with the cooking steam outlet 13. Thus, the overflow of the reheat steam is avoided, the utilization rate of the reheat steam is greatly improved, and the load of producing effective reheat steam is reduced.

[0124] As shown in Fig. 1, the reheat steam channel assembly 40 is located at the first position, and the cooking steam discharging channel P2 communicates with the cooking steam outlet 13. The cooking steam outlet 13 is located at the bottom of the cooking cavity, and the cooking steam outlet 13 is open. The cooking steam in the cooking cavity can be discharged outside via the cooking steam outlet 13. Figure 3 ​As shown, one end of the supplementary cooking steam supply channel P1 is provided with the aforementioned steam inlet 41, and the other end is provided with a supplementary cooking steam inlet 14. In this embodiment, the steam channel assembly 10 also includes a supplementary cooking steam docking cover 15. The supplementary cooking steam docking cover 15 is used to cover the top opening of the water container when the cover is in the closed position. The supplementary cooking steam inlet 14 is provided at the supplementary cooking steam docking cover 15. Supplementary cooking steam enters the supplementary cooking steam supply channel P1 from the supplementary cooking steam inlet 14. The supplementary cooking steam docking cover 15 is also provided with a supplementary cooking steam docking seal 16, which is used to form a seal between the water container and the supplementary cooking steam docking cover 15 when the cover is closed. The supplementary cooking steam docking cover 15 is connected to or integrally provided in the corner area near the rear end of the cover plate seat 3, specifically in the corner of the seat support part 5. Thus, the position of the supplementary cooking steam docking cover 15 can correspond vertically to the water container inside the pot.

[0125] like Figure 4 As shown, the bottom shell 11 of the channel has a hollow steam inlet / outlet section 17. The steam inlet / outlet section 17 protrudes downward from the lower surface of the bottom shell 11, and its top end forms a steam inlet / outlet port 18. The steam inlet / outlet section 17 communicates with the cooking steam exhaust channel P2, thereby the steam inlet / outlet port 18 communicates with the cooking steam exhaust channel P2. The cover plate 2 has a steam inlet / outlet passage hole 6, and the steam inlet / outlet section 17 of the bottom shell 11 is engaged in the steam inlet / outlet passage hole 6, thereby the steam inlet / outlet port 18 communicates with the cooking chamber. The steam inlet / outlet section 17 can be locked in the steam inlet / outlet passage hole 6, and the steam inlet / outlet section 17 is positioned in the horizontal direction. This steam inlet / outlet port 18 serves as a supplementary cooking steam outlet and a cooking steam inlet, so that supplementary cooking steam and cooking steam flow through a common opening at different times, eliminating the need to set separate outlets and inlets for these two types of steam in different areas. When the cover is opened, the steam inlet / outlet port 18 can be observed from a smaller area inside the cover, providing a better user experience and improving the integrity of the inner appearance of the product.

[0126] Steam inlet / outlet 17 is located in the area near the rear end of the cover plate 2. Supplemental steam is supplied to the cooking chamber from the rear area of ​​the cover, and cooking steam within the cooking chamber is discharged from the rear area of ​​the cover. When the cover is opened, the steam inlet / outlet 18 can be observed from a smaller area inside the cover, providing a better user experience and improving the integrity of the product's internal appearance. The cooking steam outlet 13 and the steam inlet / outlet 17 of the channel bottom shell 11 are arranged longitudinally at intervals and are adjacent to or located on the longitudinal centerline CL. The steam inlet / outlet 17 and the cooking steam outlet 13 are approximately located in the transverse middle of the cover, and a portion of the cooking steam discharge channel P2 extends longitudinally along the cover.

[0127] The steam supply channel P1 extends in the transverse direction, so as to communicate with the steam inlet 14 located at the end corner. Alternatively, the steam supply channel P1 extends in a direction inclined relative to the transverse direction. The steam outlet 13 and the steam inlet 17 of the channel bottom shell 11 are spaced apart in the longitudinal direction of the cover body, so that a part of the steam discharge channel P2 extends in the longitudinal direction of the cover body. It should be noted that the longitudinal center line CL of both the cover plate 2 and the detachable cover assembly 1 is collinear. It should be noted that the term "longitudinal" or "longitudinal direction" used herein refers to the front-rear direction, and the term "transverse" or "transverse direction" refers to the left-right direction.

[0128] The steam inlet 17 and the edge of the steam inlet passage hole 6 are provided with a steam inlet sealing member 19. For example, the steam inlet sealing member 19 is sleeved on the steam inlet 17 and abuts against the edge of the steam inlet passage hole 6. The steam inlet sealing member 19 can prevent steam from entering the inside of the cover body between the cover plate 2 and the steam inlet 17, thereby avoiding the safety hazard caused by the moisture of the electrical devices in the cover plate 2, improving the sealing effect of the assembly and the safety of the product in the case of ensuring the assembly reliability.

[0129] The channel between the steam inlet 18 and the steam outlet 13 is the steam discharge channel P2. When the steam channel assembly 40 is in the first position, the flow path of the cooking steam in the steam channel assembly 10 is as follows: referring to the arrow of Figure 4 , the cooking steam enters the steam inlet 18 into the steam inlet 17, and then flows into the steam discharge channel P2 communicated with the steam inlet 17, and then referring to the arrow of Figure 3 , the cooking steam passes through the steam discharge channel P2, and then is discharged from the cooking steam outlet 13 of the channel top shell 12. The cooking steam outlet 13 is in sealing communication with the cooking steam discharge channel in the cover body, so that the cooking steam is discharged to the external environment through the cooking steam discharge channel.

[0130] The channel between the steam inlet 18 and the steam inlet 14 is the steam supply channel P1. When the steam channel assembly 40 is in the second position, the flow path of the cooking steam in the steam channel assembly 10 is as follows: referring to the arrow of Figure 6 , the cooking steam enters the steam inlet 14 into the steam supply channel P1, and then flows into the steam discharge channel P2 through the steam passage 41; then referring to the arrow of Figure 7 , the cooking steam passes through the steam discharge channel P2, and then enters the steam inlet 17 communicated with the steam discharge channel P2; finally, the cooking steam is supplied into the cooking cavity from the steam inlet 18 at the bottom end of the steam inlet 17.

[0131] The driving force for the movement of the steam channel assembly 40 includes the thrust of the steam. Exemplarily, the steam channel assembly 40 is configured to be moved from the first position to the second position in the horizontal direction by the thrust of the steam. The steam generates a thrust to move the steam channel assembly 40 towards the second position after reaching a certain steam volume, so that the steam channel assembly 10 is automatically switched from the state of disconnection between the cooking steam exhaust channel P2 and the steam supply channel P1 to the state of connection, and at this time, the steam volume of the steam is rapidly flowed forward under the pressure difference and then instantaneously sprayed into the cooking cavity. In this way, the time for supplying the steam into the cooking cavity is shortened, the steam volume per unit time is increased, and the taste of the food is improved, and the problem of rapid browning of the food is better avoided.

[0132] The driving force for the movement of the steam channel assembly 40 also includes the elastic force of the elastic member. Specifically, the steam channel assembly 10 further comprises a reset elastic member 61. The reset elastic member 61 is used to provide an elastic force, also called a pulling force, for moving the steam channel assembly 40 towards the first position. The reset elastic member 61 can be a spring, a rubber band, etc. The reset elastic member 61 can keep the steam channel assembly 40 in the first position and automatically reset from the second position to the first position, so that the steam channel assembly 10 is automatically switched from the state of disconnection between the steam supply channel P1 and the cooking steam exhaust channel P2 to the state of connection. The thrust of the steam channel assembly 40 and the elastic force of the reset elastic member 61 are in opposition to each other, so that the steam channel assembly 40 can move reciprocally on the channel bottom shell 11 to switch the state of connection and disconnection between the cooking steam exhaust channel P2 and the steam supply channel P1. In addition, since the thrust of the steam channel assembly 40 needs to overcome a certain elastic force, it is beneficial to accumulate more steam volume, so that more steam volume is instantaneously sprayed into the cooking cavity.

[0133] The steam channel assembly 40 comprises a moving block 42 having a cavity 44. The moving block 42 is movably arranged on the channel bottom shell 11 between the first position and the second position, and the cavity 44 forms part of the steam supply channel P1 and is provided with the steam passage 41. The steam passage 41 is arranged on the moving block 42 to be opened or blocked with the movement of the moving block 42. The moving block 42 moves horizontally and blocks the steam passage 41 in the first position to close the steam supply channel P1, and opens the steam passage 42 in the second position to open the steam supply channel P1.

[0134] The mobile block 42 of the present embodiment is an example of the supplementary cooking steam regulating member 7. Further, the supplementary cooking steam regulating member 7 is movably arranged between a first position in which the supplementary cooking steam supply passage P1 is closed and a second position in which the supplementary cooking steam supply passage P1 is open, and the supplementary cooking steam regulating member 7 is configured to be moved from the first position to the second position by the pushing force of the supplementary cooking steam. With such a design, the supplementary cooking steam generates a pushing force to move the supplementary cooking steam regulating member 7 toward the second position after reaching a certain steam amount, so that the supplementary cooking steam supply passage P1 is automatically switched from the closed state to the open state, and the certain steam amount of the supplementary cooking steam flows forward under the pressure difference and is then instantaneously sprayed into the cooking cavity. In this way, the time length for supplying the supplementary cooking steam into the cooking cavity is shortened, and the steam amount of the supplementary cooking steam per unit time is increased, so that the taste of the food is improved and the problem of the food being quickly scorched is better avoided.

[0135] Referring back to Figure 3 The over-steam port 41 is arranged on the bottom wall of the accommodating cavity 44. The channel bottom shell 11 is provided with a blocking portion 20 arranged on the lower side of the bottom wall of the accommodating cavity 44 to block the over-steam port 41. The blocking portion 20 is tightly attached to the bottom wall of the accommodating cavity 44 under the downward pressure of the mobile block 42, so that the blocking effect on the over-steam port 41 is good. The downward pressure of the mobile block 42 includes the gravity of the mobile block 42 and the pressure of the stop block 71 on the mobile block 42.

[0136] The supplementary cooking steam passage assembly 40 further includes a resilient tubular member 43. As shown in Figure 8 One end of the tubular member 43 is sealingly connected to the mobile block 42, and the mobile block 42 moves the one end of the tubular member 43 when moving. The tubular cavity 45 of the tubular member 43 forms part of the supplementary cooking steam supply passage P1. The steam passage assembly 10 further includes a hollow steam receiving column 21 fixedly arranged and sealingly connected to the other end of the tubular member 43. The hollow cavity 22 of the steam receiving column 21 forms part of the supplementary cooking steam supply passage P1. The resilient tubular member 43 can be sealingly connected at both ends thereof to avoid leakage of the supplementary cooking steam. The steam receiving column 21 is connected to or integrally arranged on the channel bottom shell 11 or the supplementary cooking steam docking cover 15. In the illustrated example, the steam receiving column 21 is integrally formed with the supplementary cooking steam docking cover 15, and the channel bottom shell 11 is provided with a through hole for the steam receiving column 21 to pass through.

[0137] The tubular member 43 itself has resilience and is at least partially configured to have an extension structure. In the illustrated example, the two end portions of the tubular member 43 do not have the extension structure, and the portion outside the two end portions has the extension structure, so that the extension length of the tubular member 43 is relatively large. Alternatively, the tubular member 43 is not extendable, and in this case, the tubular member 43 can be bent to change the overall length thereof in the moving direction of the mobile block 42.

[0138] The reset elastic member 61 is located at the lower side of the tubular member 43. One end of the reset elastic member 61 is connected to the moving block 42, and the other end is connected to the passage bottom shell 11. Specifically, as shown in Figure 9 and Figure 10 the moving block 42 and the passage bottom shell 11 are both provided with a protruding hooking part 23, and the hooks at both ends of the reset elastic member 61 are hooked on the hooking part 23. The hooking part 23 has a recessed clamping position, and the hooks are clamped in the clamping position to avoid the hooks from shaking. The hooking part 23 on the moving block 42 protrudes from the surface of the moving block 42 facing the reset elastic member 61. The hooking part 23 on the passage bottom shell 11 protrudes upward from the bottom surface of the passage bottom shell 11 and is located between the moving block 42 and the steam receiving column 21. Optionally, the passage bottom shell 11 is also provided with a pair of limiting walls 24 arranged in parallel, and the reset elastic member 61 is located between the pair of limiting walls 24 to limit the position of the reset elastic member 61, so that the stretching direction of the reset elastic member 61 can remain parallel to the moving direction of the moving block 42, avoiding the reset elastic member 61 from being bent, skewed or other undesired displacement during stretching.

[0139] The bottom surface of the passage bottom shell 11 is provided with an upwardly extending blocking part 25. The blocking part 25 is arranged on the extension line of the moving path of the cooking steam passage assembly 40, specifically between the moving block 42 and the steam receiving column 21, so that the cooking steam passage assembly 40 is blocked at the first position. When the cooking steam passage assembly 40 moves in the direction towards the first position, it can be blocked by the blocking part 25, so that it stops at the first position and does not continue to move forward; the blocking part 25 is more advantageous in the scheme of the reset elastic member 61, which can make the automatic reset of the cooking steam passage assembly 40 more accurate. Optionally, the blocking part 25 is plate-shaped and extends in a direction perpendicular to the moving direction of the moving block 42. Figure 10 Two blocking parts 25 are shown arranged at intervals, each connected to one end of a pair of limiting walls 24. The area between the two blocking parts 25 is used to avoid the reset elastic member 61. The hooking part 23 on the passage bottom shell 11 is located between the pair of limiting walls 24 and the steam receiving column 21.

[0140] The bottom surface of the channel bottom shell 11 is provided with a pair of sliding rails 26 extending along the moving direction of the moving block 42 and spaced apart along a direction perpendicular to the moving direction. The moving block 42 is located between the pair of sliding rails 26, so that the blocking part 20 is also located between the pair of sliding rails 26. The stop part 25 is located between the pair of limiting walls 24 and the pair of sliding rails 26, which are located between the pair of sliding rails 26 and the steam receiving column 21. The moving block 42 has a pair of sliding parts 46. The sliding parts 46 are substantially parallel to the sliding rails 26. The sliding rails 26 and the corresponding sliding parts 46 are slidably matched through concave-convex structures. Exemplarily, the top end of the sliding rail 26 is provided with a convex part 27 protruding towards the middle of the pair of sliding rails 26, and the sliding part 46 protrudes from the surface of the moving block 42 and is clamped in the recessed area below the convex part 27. The convex part 27 can limit the sliding part 46 between the convex part 27 and the bottom surface of the channel bottom shell 11, thereby limiting the upward movement of the moving block 42.

[0141] Optionally, the bottom surface of the moving block 42 is also provided with a pair of downwardly protruding sliding protrusions 47 corresponding to the pair of sliding parts 46 respectively. The sliding protrusions 47 are substantially parallel to the sliding parts 46 and connected with the corresponding sliding parts 46. The sliding protrusions 47 can slide on the bottom surface of the channel bottom shell 11. The sliding protrusions 47 can reduce the contact area between the moving block 42 and the channel bottom shell 11, thereby reducing the friction, so that the moving block 42 can be easily moved.

[0142] The number of steam passing openings 41 can be one or more, and the number of blocking parts 20 can be less than or equal to the number of steam passing openings 41, Figure 10 Two blocking parts 20 are shown. Optionally, the width of the moving block 42 is greater than the width of the reset elastic member 61, so that the spacing between the pair of sliding rails 26 is greater than the spacing between the pair of limiting walls 24. As Figure 11 As shown, the moving block 42 and the steam receiving column 21 are provided with hollow joints 28, and the tubular member 43 can be sleeved on the joint 28 and is in interference fit with the joint 28 to form a sealed connection. Optionally, the joint 28 can be provided with a protrusion 29 with a guide surface, which is arranged around the outer periphery of the joint 28. The maximum outer diameter of the protrusion 29 is greater than the inner diameter of the tubular member 43, so as to be in interference fit. The end of the tubular member 43 can be gradually expanded along the guide surface, which can facilitate assembly and guide the end of the tubular member 43 to be easily sleeved into the joint 28, thereby improving the assembly efficiency. And the whole circle of the protrusion 29 can avoid gas leakage and ensure the sealing of the connection.

[0143] As Figure 9As shown, the moving block 42 comprises a moving block body 48 and a moving block cover 49. The moving block body 48 has a top opening which is blocked by the moving block cover 49. The hooking portion 23 is provided on the moving block body 48, and the joint 28 is provided on the moving block cover 49. Exemplarily, the moving block cover 49 is provided with a hollow steam passing column 52, and the joint 28 is connected to the steam passing column 52.

[0144] As shown in Figure 3 , Figure 6 and Figure 12 , the steam passage assembly 10 further comprises a stopper assembly 70. The stopper assembly 70 is provided on the passage top shell 12, and is used to keep the cooking steam passage assembly 40 in the second position. The stopper assembly 70 can block the movement of the cooking steam passage assembly 40 towards the first position, keep the cooking steam supply passage P1 open, and ensure the continuous supply of cooking steam to the cooking cavity.

[0145] The stopper assembly 70 comprises a stopper block 71 and a pushing elastic member 72. The stopper block 71 is movable relative to the passage top shell 12. Specifically, the stopper block 71 is movable between a avoiding position (see Figure 3 ) allowing the movement of the moving block 42 and a stop position (see Figure 6 ) blocking the movement of the moving block 42 in the second position. In the illustrated example, the stopper block 71 is vertically movable, and the moving block 42 is horizontally movable, and the moving directions of the two are different, so that the stopper block 71 can extend into the moving path of the moving block 42 to block the movement of the moving block 42 towards the first position. The pushing elastic member 72 is used to provide a pushing force for moving the stopper block 71 towards the stop position. The pushing elastic member 72 can automatically move the stopper block 71 to the stop position and keep the stopper block 71 in the stop position, so as to ensure that the moving block 42 can be continuously kept in the second position.

[0146] Exemplarily, the moving block 42 is provided with a recess 50, and specifically the moving block cover 49 is provided with the recess 50. The stopper block 71 extends into the recess 50, for example downwards, to engage with the recess 50 when in the stop position. The stopper block 71 moves upwards to exit the recess 50 to the avoiding position. The cooperation between the stopper block 71 and the recess 50 can limit the movement of the moving block 42, and the stopper block 71 can easily enter and exit the recess 50, avoiding the phenomenon of being stuck.

[0147] The stop block 71 has a first inclined surface 73 that is relatively vertically inclined. The orientation of the first inclined surface 73 is opposite to the direction of movement of the moving block 42 toward the first position and gradually slopes downward toward the first position. Specifically, the first inclined surface 73 faces away from the side where the reset elastic member 61 is located. The recess 50 has a second inclined surface 51 that mates with the first inclined surface 73. Specifically, the moving block cover 49 is configured in a bent shape to form the second inclined surface 51, so that the top opening of the moving block body 48 is a high-low opening. The second inclined surface 51 faces the first inclined surface 73 and is substantially parallel to the first inclined surface 73. Furthermore, the second inclined surface 51 faces the side where the reset elastic member 61 is located. With the help of the two inclined surfaces, the stop block 71 can smoothly enter the recess 50, and due to its own weight and the elastic force of the pushing elastic member 72, it can provide a component force to move the moving block 42 toward the second position, causing the moving block 42 to move toward the second position; when the moving block 42 moves toward the first position, it can provide a component force to move the stop block 71 upward, so that the stop block 71 automatically and smoothly exits the recess 50.

[0148] The diameters of the cooking steam outlet and the steam passage can be the same or different. The larger of the two diameters is set to a diameter D. The second inclined plane 51 has a projected dimension L on the horizontal plane, which should satisfy LD ≥ 1mm. This design ensures that when the moving block moves from the first position to the second position, it completely blocks the cooking steam outlet and fully opens the steam passage; conversely, it ensures that when the moving block returns from the second position to the first position, it fully opens the cooking steam outlet and completely blocks the steam passage.

[0149] like Figure 8 As shown, the top surface of the channel top shell 12 is provided with an upwardly extending mounting cylinder 30 and a cylinder cover 31 that seals the top opening of the mounting cylinder 30. The cylinder cover 31 can be fixed to the fastening post of the channel top shell 12 by fasteners. The stop assembly 70 is movably located inside the mounting cylinder 30 and slides along the inner wall of the mounting cylinder 30. The mounting cylinder 30 can provide guidance for the stop assembly 70, allowing the stop assembly 70 to move smoothly. One end of the push elastic member 72 abuts against the cylinder cover 31, and the other end extends into the mounting hole of the stop block 71. The stop assembly 70 also includes an annular leak-proof seal 74. The leak-proof seal 74 is sleeved on the outer periphery of the stop block 71 and slides in contact with the inner wall of the mounting cylinder 30. The leak-proof seal 74 can seal the gap between the stop block 71 and the mounting cylinder 30, preventing steam in the cooking steam exhaust channel P2 from overflowing into the interior of the cover.

[0150] Optionally, the outer periphery of the stopper 71 is provided with an annular boss 75 which is capable of sliding contact with the inner wall of the mounting cylinder 30. The boss 75 is capable of reducing the contact area between the stopper 71 and the mounting cylinder 30, thereby reducing the friction so as to facilitate the movement of the stopper 71. The outer periphery of the stopper 71 can also be provided with an annular groove 76 in which the leak-proof seal 74 is located so as to limit the movement of the leak-proof seal 74. The boss 75 can form the lower groove wall of the groove 76.

[0151] The inner surface of the channel top shell 12 is provided with a flow guide wall 32 which extends downwardly around the cooking steam outlet 13, and the top wall of the cavity 44 or the top surface of the moving block cover 49 blocks the bottom opening of the flow guide wall 32 when the moving block 42 is in the second position (see Figure 6 ). The flow guide wall 32 lowers the blocking position of the cooking steam outlet 13 by a certain height, so as to lower the blocking position to be closer to the moving block 42, so as to facilitate the blocking by the top wall of the cavity 44 at the cooking steam outlet 13. The cooking steam outlet 13 is adjacent to the stopper assembly 70 or the mounting cylinder 30, and is spaced apart from the stopper assembly 70 or the mounting cylinder 30 in the moving direction of the moving block 42. Further, the cooking steam outlet 13 is located on the side of the stopper assembly 70 which is away from the tubular member 43 / the return elastic member 61.

[0152] Referring back to Figure 1 , the steam channel assembly 10 further comprises a channel seal 62 and a pressing plate 63. The channel seal 62 is fixed to the channel bottom shell 11 by the pressing plate 63, for example, the pressing plate 63 is fixed to the channel bottom shell 11 at different positions by fasteners, and the channel seal 62 is pressed by the pressing plate 63 and thus is also fixed. The outer peripheral portion of the channel seal 62 is in sealing abutment with the channel top shell 12 to form a seal between the channel bottom shell 11 and the channel top shell 12, thereby forming a sealed cooking steam discharge channel P2. The supplementary cooking steam channel assembly 40 and the steam receiving column 21 are located within the channel seal 62, so that the supplementary cooking steam channel assembly 40 and the steam receiving column 21 are entirely located within the cooking steam discharge channel P2.

[0153] The outer profiles of both the channel seal 62 and the pressing plate 63 are substantially the same, and are exemplarily in the shape of an L. Alternatively, the outer profiles of both the channel bottom shell 11 and the channel top shell 12 can also be in the shape of an L, i.e. the part not forming the cooking steam exhaust passage P2 is omitted. The channel top shell 12 comprises a top shell fixing portion 33 and a top shell cavity portion 34. The top shell fixing portion 33 is connected to the channel bottom shell 11, and the top shell cavity portion 34 protrudes upwardly from the top shell fixing portion 33. The inner cavity 35 of the top shell cavity portion 34 forms the cooking steam exhaust passage P2, and the supplementary cooking steam passage assembly 40 is located in the inner cavity 35 of the top shell cavity portion 34. The top shell cavity portion 34 has an outer profile in the shape of an L. Both the channel seal 62 and the pressing plate 63 have avoiding openings to avoid the supplementary cooking steam passage assembly 40 and the structures associated therewith on the channel bottom shell 11, the steam receiving column 21, and the steam inlet and outlet portion 17.

[0154] Referring back to Figure 10 Alternatively, the channel bottom shell 11 can also be provided with a support wall 36 between the pair of sliding guide rails 26 and parallel to the sliding guide rails 26, for supporting the moving block 42. The support wall 36 can be connected to the blocking portion 20.

[0155] Figure 13 A steam passage assembly 100 according to a second embodiment of the present application is shown. As Figures 14 to 17 The steam generating device 102 is provided in the cover. Exemplarily, the steam generating device 102 can be fixed to the upper surface of the inner liner 101. The inner liner 101 is provided with a hollow steam inlet column 103 at a position corresponding to the steam receiving column 21, and the steam generating device 102 and the steam inlet column 103 can be connected by a hose 104.

[0156] In the present embodiment, the channel top shell 12 is provided with a supplementary cooking steam inlet 14 and a supplementary cooking steam inlet seal 105 passing through the supplementary cooking steam inlet 14. The steam receiving column 21 is provided with a steam receiving opening 106 corresponding to the position of the supplementary cooking steam inlet 14, so that the steam receiving column 21 is suitable for receiving supplementary cooking steam from the upper side. The steam receiving column 21 is connected to or integrally provided on the channel bottom shell 11. The lower part of the supplementary cooking steam inlet seal 105 abuts against the edge of the steam receiving opening 106, and the upper part thereof abuts against the edge of the bottom opening of the steam inlet column 103. In this way, a sealed passage can be formed between the steam inlet column 103 and the steam receiving opening 106, preventing leakage of the supplementary cooking steam.

[0157] The other structures of the second embodiment are substantially the same as those of the first embodiment, and will not be described again for the sake of brevity.

[0158] Next, the working process of the supplementary cooking steam passage assembly 40 is described schematically:

[0159] When the inner pot is heated and the steam generating device is not working, there is no cooking steam in the cooking steam discharging passage P2, at this time the moving block 42 is kept in the first position by the elastic force F11 of the reset elastic member 61 and the resistance F2 provided by the blocking part 25 against the elastic force F11. The cooking steam can flow through the steam inlet and outlet port 18, the steam inlet and outlet part 17, the cooking steam discharging passage P2 and the cooking steam outlet 13 in turn, and then discharged to the outside environment through the cooking steam discharging passage of the cover main body.

[0160] When the steam generating device is working, the cooking steam flows into the cooking steam discharging passage P2 and accumulates in the cooking steam discharging passage P2, the pushing force F3 of the cooking steam gradually increases from zero, and the resistance F2 gradually decreases to zero. At this time, the stop block 71 is in contact with the top surface of the moving block 42, and the stop block 71 generates a horizontal friction force f on the moving block 42 due to the elastic force of the pushing elastic member 72. When F3>F11+f, the moving block 42 can move away from the first position and move towards the second position, and as the moving block 42 moves, the reset elastic member 61 is stretched, and the elastic force F11 gradually increases, and the pushing force F3 needs to overcome the increasing elastic force F11. After moving a certain distance, the recess 50 of the moving block 42 is moved to the lower side of the stop block 71, and the elastic force of the pushing elastic member 72 pushes the stop block 71 to move downward. Due to the existence of the inclined surface, the stop block 71 generates a horizontal component force Fa towards the second position on the moving block 42, and the horizontal component force Fa and the pushing force F3 can further push the moving block 42 to move towards the second position until it moves to the second position. At this time, the steam passing port 41 is open, and the cooking steam flows through the cooking steam supply passage P1, the steam passing port 41, the cooking steam discharging passage P2 and the steam inlet and outlet part 17 in turn, and then supplied into the cooking cavity through the steam inlet and outlet port 18.

[0161] When the amount of cooking steam is insufficient, the pushing force F3 of the cooking steam decreases, and when F11>F3+Fa, the moving block 42 can move away from the second position and move towards the first position. Due to the existence of the inclined surface, as the moving block 42 moves, the stop block 71 is pushed upward by the moving block 42 until it completely exits the recess 50, at which time the horizontal component force Fa is zero. As the moving block 42 continues to move, the stop block 71 is in contact with the top surface of the moving block 42, and the stop block 71 generates a horizontal friction force f on the moving block 42. Since F11>F3+f, the moving block 42 can still continue to move in the direction towards the first position until it is blocked by the blocking part 25, at which time the moving block 42 stops in the first position and completes the reset.

[0162] Figure 14 A steam passage assembly 200 according to a third embodiment of the present application is shown. As Figure 16 and Figure 16As shown, one end of the cooking steam supply passage P1 has a cooking steam outlet, and the other end has a cooking steam outlet. The cooking steam passage assembly 40 occupies the area of the passage bottom shell 11 outside the cooking steam discharge passage P2, so that the cooking steam supply passage P1 is independent of the area where the cooking steam discharge passage P2 is located. In this way, the structures of the two steam passages can be separately arranged, and the design freedom is greater. The cooking steam outlet 102 of the cooking steam supply passage P1 and the cooking steam inlet 101 of the cooking steam discharge passage P2 are respectively arranged in different areas of the passage bottom shell 11. The cooking steam outlet 102 and the cooking steam inlet 101 each occupy an area, and the structures of the two steam inlets and outlets can be separately arranged, and the design freedom is greater.

[0163] Alternatively, the cooking steam passage assembly 40 can be located inside the cooking steam discharge passage P2. The cooking steam supply passage P1 is contained inside the cooking steam discharge passage P2, occupying the space inside the cooking steam discharge passage P2, so that the two steam passages occupy the same area inside the cover body, and the structure of the two steam passages can be more compactly arranged, so that the internal space of the cover body occupies less space; reduces the heat loss of the cooking steam during transmission, effectively ensures the best effect of moisture retention of food such as rice. The passage bottom shell 11 is provided with a hollow inlet and outlet steam part, and the cooking steam outlet 102 of the cooking steam supply passage P1 and the cooking steam inlet 101 of the cooking steam discharge passage P2 are concentrated at the inlet and outlet steam part. This design cleverly concentrates the cooking steam outlet 102 and the cooking steam inlet in a relatively small area, and does not need to arrange sealing members and sealing structures at the two ports respectively, simplifying the manufacturing and assembly process, and also making the structure more simple.

[0164] The cooking steam passage assembly 40 further comprises a cooking steam passage sealing member 262 and a first pressing plate 263. The cooking steam passage sealing member 262 is fixed to the passage bottom shell 11 by the first pressing plate 263, for example, the first pressing plate 263 is fixed to the passage bottom shell 11 at different positions by fasteners, and the cooking steam passage sealing member 262 is pressed by the first pressing plate 263, so as to be fixed. The outer peripheral part of the passage sealing member 262 is sealingly abutted with the passage top shell 12 to form a seal between the passage bottom shell 11 and the passage top shell 12, thereby forming a sealed cooking steam supply passage P1.

[0165] In the illustrated example, the steam passage assembly further comprises a cooking steam passage seal 264 and a second pressing plate 265. The cooking steam passage seal 264 is fixed to the passage bottom shell 11 by the second pressing plate 265, for example, the second pressing plate 265 is fixed to the passage bottom shell 11 at different positions with fasteners, and the cooking steam passage seal 264 is pressed by the second pressing plate 265 and thus is fixed. The outer peripheral portion of the passage seal 264 is sealingly abutted against the passage top shell 12 to form a seal between the passage bottom shell 11 and the passage top shell 12, thereby forming a sealed cooking steam exhaust passage P2. In an alternative example, the cooking steam passage seal 264 is clamped between the outer peripheral portions of both the passage bottom shell 11 and the passage top shell 12, at which time the supplementary cooking steam passage seal 262 forms an inner seal and the cooking steam passage seal 264 forms an outer seal.

[0166] The supplementary cooking steam regulating member 7 is configured to have a blocking member 210 with a certain weight. The blocking member 210 is vertically movable and blocks the supplementary cooking steam inlet 14 (see Figure 15 ) in the first position to close the supplementary cooking steam supply passage P1, and opens the supplementary cooking steam inlet 14 in the second position above the first position to open the supplementary cooking steam supply passage P1. The supplementary cooking steam inlet 14 can be opened or blocked by the movable blocking member 210, thereby realizing the opening or closing of the supplementary cooking steam supply passage P1; the blocking member 210 is kept in the first position by its own gravity and automatically resets to the first position from the second position, so that the supplementary cooking steam supply passage P1 is automatically switched from the open state to the closed state. The thrust of the supplementary cooking steam and the gravity of the blocking member 210 are mutually opposed, so that the blocking member 210 can reciprocally move on the passage bottom shell 11 to switch the open state and the closed state of the supplementary cooking steam supply passage P1.

[0167] As shown in Figure 17 and ​ , the blocking member 210 comprises a blocking body 211 for blocking the supplementary cooking steam inlet 14 and a counterweight 212 installed in the blocking body 211. The separate counterweight 212 can make the blocking member 210 have a desired weight, facilitate miniaturization of the blocking member 210, and avoid occupying too much space in the supplementary cooking steam supply passage P1. Exemplarily, the blocking body 211 is provided with an open cavity 214, the opening faces upward, and the size of the cavity 214 at the opening is smaller than the size inside the cavity 214, thereby forming a structure similar to a necked pocket. The counterweight 212 is loaded into the cavity 214 through the opening and is not easy to come out of the cavity 214.

[0168] The blocking body 211 is provided with a bendable connecting portion 213 fixed to the passage bottom shell 11. The blocking member 210 is pivotable at the connecting portion 213 between the first position and the second position. The deformation of the connecting portion 213 can make the blocking member 210 pivot by an angle not greater than 90 degrees so as to reset the blocking member 210. The pivoting of the blocking member 210 can automatically switch the cooking steam supply passage P1 from the open state to the closed state, and the blocking structure is simpler.

[0169] The blocking body 211 is integrally formed with the cooking steam passage seal 262 at the connecting portion 213. The blocking body 211 is fixed to the passage bottom shell 11 through the first pressing plate 263 and the cooking steam passage seal 262. The blocking member 210 is also of a sealing material and can act as a seal to seal the cooking steam inlet 14 in the first position. The cooking steam passage seal 262 is provided with a first through hole 266, and the blocking member 210 is located in the first through hole 266, and the connecting portion 213 is connected with the hole wall of the first through hole 266. The first pressing plate 263 is provided with a second through hole 267, and the edge of the second through hole 267 is pressed against the connecting portion 213 and the cooking steam passage seal 262. The blocking member 210 is pivoted upward through the second through hole 267. The first pressing plate 263 can limit the position of the cooking steam passage seal 262 connected with the blocking member 210, so as to avoid displacement of the cooking steam passage seal 262 with the pivoting of the blocking member 210, thereby avoiding the deviation of the position of the blocking member 210 caused by the reciprocating pivoting of the blocking member 210.

[0170] Unless otherwise defined, 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, unless the features are not compatible with the other embodiment or are otherwise stated.

[0171] The application has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and illustration, and the application is not limited to the above embodiments. According to the teachings of the present application, more various modifications and changes can be made, and these modifications and changes all fall within the scope of the application claimed.

Claims

1. A steam passage assembly for a lid of a cooking appliance, characterized in that, The steam passage assembly comprises: a passage bottom shell; a supplementary cooking steam passage assembly connected to the passage bottom shell and used for forming a supplementary cooking steam supply passage, the supplementary cooking steam passage assembly comprising a supplementary cooking steam regulating member movably arranged between a first position for closing the supplementary cooking steam supply passage and a second position for opening the supplementary cooking steam supply passage, wherein the supplementary cooking steam regulating member is configured to be moved from the first position to the second position by the thrust of the supplementary cooking steam.

2. The vapor chimney assembly of claim 1, wherein, The supplementary cooking steam regulating member is configured as a moving block having a cavity forming a part of the supplementary cooking steam supply passage and provided with a steam passage opening, wherein the moving block moves horizontally and blocks the steam passage opening in the first position to close the supplementary cooking steam supply passage and opens the steam passage opening in the second position to open the supplementary cooking steam supply passage.

3. The vapor chimney assembly of claim 2, wherein, The steam passage assembly further comprises a reset elastic member for providing an elastic force for moving the moving block towards the first position.

4. The vapor chimney assembly of claim 2, wherein, The steam passage opening is provided in a bottom wall of the cavity, and the passage bottom shell is provided with a blocking portion located on the lower side of the bottom wall of the cavity to block the steam passage opening.

5. The vapor chimney assembly of claim 2, wherein, The supplementary cooking steam passage assembly further comprises an elastic tubular member, one end of the tubular member being sealingly connected to the moving block, the moving block moving together with the one end of the tubular member when moving, and a tube cavity of the tubular member forming a part of the supplementary cooking steam supply passage.

6. The vapor passage assembly of claim 5, wherein, The supplementary cooking steam passage assembly further comprises a hollow steam receiving column fixedly arranged and sealingly connected to the other end of the tubular member.

7. The vapor chimney assembly of claim 6, wherein, The steam passage assembly further comprises a supplementary cooking steam docking cover provided with a supplementary cooking steam inlet, the supplementary cooking steam docking cover being used for covering the steam generating device on the pot body when the cover body is in a closed position, the steam receiving column being connected to or integrally arranged on the passage bottom shell or the supplementary cooking steam docking cover and being in communication with the supplementary cooking steam inlet.

8. The vapor chimney assembly of claim 6, wherein, The steam passage assembly further comprises a passage top shell provided with a supplementary cooking steam inlet and a supplementary cooking steam inlet sealing member passing through the supplementary cooking steam inlet, the steam receiving column being provided with a steam receiving opening corresponding to the position of the supplementary cooking steam inlet, and the supplementary cooking steam inlet sealing member abutting against the edge of the steam receiving opening.

9. The vapor chimney assembly of claim 2, wherein, The steam passage assembly further comprises a stop component for keeping the moving block in the second position.

10. The vapor passage assembly of claim 9, wherein, The stop component comprises a stop block movably arranged between an avoiding position for allowing the moving block to move and a blocking position for blocking the moving block in the second position from moving.

11. The vapor passage assembly of claim 10, wherein, The stop block is vertically movable and has a first inclined surface oppositely inclined to the vertical direction, the direction of the first inclined surface being opposite to the direction of the moving block moving towards the first position, and the moving block has a second inclined surface matched with the first inclined surface.

12. The vapor chimney assembly of claim 10, wherein, The stop component further comprises a pushing elastic member for providing an elastic force for moving the stop block towards the blocking position.

13. The vapor chimney assembly of claim 1, wherein, The steam supplementing regulating member is configured to have a blocking member with a certain weight, the blocking member is vertically movable and blocks the steam supplementing inlet to close the steam supplementing supply passage when in the first position, and opens the steam supplementing inlet to open the steam supplementing supply passage when in a second position above the first position.

14. The vapor chimney assembly of claim 13, wherein, The blocking member includes a blocking body for blocking the steam supplementing inlet and a counterweight installed in the blocking body.

15. The vapor chimney assembly of claim 13, wherein, The blocking member includes a blocking body provided with a bendable connecting portion fixed to the passage bottom shell, and the blocking member is pivotable about the connecting portion between the first position and the second position.

16. The vapor chimney assembly of claim 15, wherein, The steam supplementing passage assembly further includes a steam supplementing passage sealing member, and the blocking body is integrally formed with the steam supplementing passage sealing member at the connecting portion.

17. The vapor chimney assembly of claim 16, wherein, The steam supplementing passage assembly further includes a pressing plate provided with a through hole, and the edge of the through hole is pressed against the connecting portion and the steam supplementing passage sealing member, and the blocking member is pivoted upward through the through hole.

18. The vapor chimney assembly of any of claims 1 to 17, wherein, The steam passage assembly further includes a passage top shell connected to the passage bottom shell and forming a cooking steam discharging passage therebetween.

19. The vapor chimney assembly of claim 18, wherein, The passage top shell is provided with a cooking steam outlet, and the steam supplementing regulating member is configured to have a moving block with a steam passing opening, the moving block blocks the steam passing opening and opens the cooking steam outlet when in the first position to make the cooking steam discharging passage communicate with the cooking steam outlet, and the moving block opens the steam passing opening and blocks the cooking steam outlet when in the second position to make the steam supplementing supply passage communicate with the cooking steam discharging passage through the steam passing opening.

20. The vapor chimney assembly of claim 19, wherein, The passage bottom shell is provided with a hollow steam inlet and outlet portion, the steam inlet and outlet portion communicates with the cooking steam discharging passage, and a steam inlet and outlet opening at the bottom end of the steam inlet and outlet portion serves as a steam supplementing outlet and a cooking steam inlet.

21. The vapor chimney assembly of claim 18, wherein, The steam supplementing passage assembly occupies an area of the passage bottom shell outside the cooking steam discharging passage, or the steam supplementing passage assembly is located in the cooking steam discharging passage.

22. The steam passage assembly according to claim 18, wherein The passage bottom shell is provided with a hollow steam inlet and outlet portion, the steam supplementing outlet of the steam supplementing supply passage and the cooking steam inlet of the cooking steam discharging passage are concentrated at the steam inlet and outlet portion; or The steam supplementing outlet of the steam supplementing supply passage and the cooking steam inlet of the cooking steam discharging passage are respectively arranged at different areas of the passage bottom shell.

23. A removable lid assembly for a lid of a cooking appliance, the removable lid assembly comprising: The detachable cover assembly is detachably mounted on the cover body and includes the steam passage assembly according to any one of claims 1 to 22, and the steam passage assembly is arranged adjacent to the rear end of the detachable cover assembly.

24. The detachable lid assembly of claim 23, wherein, The detachable cover assembly further includes a cover plate and a cover plate seat connected to the cover plate, and the steam passage assembly is arranged on the same side of the cover plate seat and the cover plate.

25. The detachable cover assembly according to claim 24, wherein The inlet and outlet steam portions of the channel bottom shell are arranged in the area adjacent to the rear end portion of the cover plate; and / or The complementary cooking steam docking cover of the steam channel assembly is connected or integrally arranged in the end corner area of the cover plate seat adjacent to the rear end portion.

26. A lid for a cooking appliance, the lid comprising: The cover body comprises the steam channel assembly according to any one of claims 1 to 22, or the cover body comprises the detachable cover assembly according to any one of claims 23 to 25.

27. A cooking appliance characterized by, The cooking utensil comprises the cover body, the pot body and the steam generating device according to claim 26, the cover body is arranged openably and closably on the pot body to form a cooking cavity between the cover body and the pot body, and the steam generating device is arranged on the cover body or the pot body to supply steam to the complementary cooking steam supply channel.

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