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 top plate, a channel bottom shell and a cooking steam channel sealing piece, the channel bottom shell and the channel top plate are connected, and a complementary cooking steam supply channel and a cooking steam exhaust channel are formed between the channel bottom shell and the channel top plate; wherein the supplementary cooking steam supply channel is located in the cooking steam exhaust channel; the cooking steam channel sealing piece is arranged between the periphery of the channel bottom shell and the periphery of the channel top plate, and therefore a closed cooking steam discharging channel is formed. According to the application, the complementary cooking steam supply channel occupies the space in the cooking steam discharge channel, so that the two steam channels occupy the same area in the cover body, the structure forming the two steam channels can be more compactly arranged, the occupied space in the cover body is small, the miniaturization of the cover body is facilitated, and the cost is reduced. The utilization rate of the internal space is improved; the cooking steam channel sealing piece forms external sealing, and cooking steam is prevented from leaking outwards.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen household 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, etc. generally have two independent steam passages in the cover body, one steam passage is used for steam inlet to transport high-temperature steam from a steam source to a cooking cavity, and the other steam passage is used for steam outlet to exhaust steam in the cooking cavity to the outside environment. During the cooking stage, the high-temperature steam generated by the steam source is introduced into the cooking cavity through the steam passage for steam inlet, so as to heat and moisten the food in the cooking cavity with the high-temperature steam; the steam in the cooking cavity is exhausted through the steam passage for steam outlet, so as to prevent the pressure in the cooking cavity from being too high.

[0003] Since the steam passage for steam inlet and the steam passage for steam outlet are independent of each other and respectively occupy separate different areas in the cover body, the internal space of the cover body is relatively large.

[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 does it mean 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 cooking appliance, the steam passage assembly comprising:

[0007] a passage top plate;

[0008] a passage bottom shell, the passage bottom shell and the passage top plate are connected and form a cooking steam exhaust passage and a complementary cooking steam supply passage between them, wherein the cooking steam exhaust passage is located inside the complementary cooking steam supply passage; and

[0009] a cooking steam passage sealing member, the cooking steam passage sealing member is arranged between the outer circumferential portions of the passage bottom shell and the passage top plate, so as to form a closed cooking steam exhaust passage.

[0010] According to the scheme, the cooking steam supply channel is contained in the interior of the cooking steam discharge channel, occupying the space in the interior of 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 rate of the internal space.

[0011] Moreover, the interior 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 entering the cooking cavity for cooking has less heat loss when passing through the cooking steam supply channel, and the loss is less, so that the temperature of the cooking steam is higher, and the cooking effect is better; on the other hand, the steam entering the cooking cavity for cooking is not condensed and liquefied 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.

[0012] Furthermore, the channel design defined in the scheme allows the sealing of the two steam channels to be constructed in an inner and outer double sealing manner and to form excellent sealing effect, reducing the flow loss of the cooking steam in the transmission process, wherein the cooking steam channel sealing member constitutes the outer sealing, so that the outer periphery of the channel bottom shell and the channel top plate forms a closed cooking steam discharge channel, avoiding the leakage of cooking steam.

[0013] Optionally, one of the outer periphery of the channel bottom shell and the outer periphery of the channel top plate is provided with a limiting groove, and the other of the outer periphery of the channel bottom shell and the outer periphery of the channel top plate is provided with an outer wall, and the cooking steam channel sealing member is at least partially located in the limiting groove and abuts against the outer wall. According to the scheme, the cooking steam channel sealing member can be better fixed by setting the limiting groove, avoiding the cooking steam channel sealing member from falling off, and ensuring that the channel top plate will not be displaced due to its own deformation when it is closed to the channel bottom shell, and the sealing effect is guaranteed.

[0014] Optionally, the cooking steam channel sealing member includes a first sealing part and a second sealing part, the first sealing part is located in the limiting groove, and the second sealing part is provided with a fixing groove, and the groove opening of the fixing groove faces the side where the limiting groove is located. The groove wall of the limiting groove is clamped into the fixing groove. According to the scheme, part of the cooking steam channel sealing member is clamped in the limiting groove, and the other part is hung on the groove wall of the limiting groove, so as to effectively prevent the cooking steam channel sealing member from falling off, and the assembly is more firm and reliable.

[0015] Optionally, the second sealing part is located on one side of the first sealing part close to the center of the steam passage assembly. According to the present solution, when the steam passage assembly is assembled, the second sealing part is not easily touched inside the one of the passage bottom shell and the passage top plate, so that the cooking steam passage sealing part is stably fixed; after assembly, the second sealing part is hidden inside the cooking steam exhaust passage, and the external structure of the steam passage assembly is steam, and the visual effect is better.

[0016] Optionally, the cooking steam passage sealing part is annular and corresponds to the shape of the outer contour of the steam passage assembly. According to the present solution, the cooking steam passage sealing part has good sealing effect and can be assembled at one time.

[0017] Optionally, the passage top plate is connected to the passage bottom shell through a buckle structure provided on the outer peripheral parts of both the passage bottom shell and the passage top plate, so that a close combination is formed between the passage bottom shell, the passage top plate and the cooking steam passage sealing part. According to the present solution, the buckle structure can detachably connect the passage top plate to the passage bottom shell, facilitating cleaning of the inside of the steam passage after the passage top plate is detached.

[0018] Optionally, one end of the passage bottom shell is provided with a steam passing part protruding downward, and the steam passing part has an import and export concentrated distribution area, and the cooking steam outlet of the cooking steam supply passage and the cooking steam inlet of the cooking steam exhaust passage are arranged in the import and export concentrated distribution area. According to the present solution, the cooking steam outlet and the cooking steam inlet are ingeniously designed to be concentrated in a relatively small area, and sealing parts and sealing structures do not need to be arranged at two ports respectively, which simplifies the manufacturing and assembly process and makes the structure more concise.

[0019] Optionally, one end of the passage bottom shell is provided with a cooking steam outlet of the cooking steam supply passage and the other end is provided with a cooking steam inlet of the cooking steam supply passage. According to the present solution, the cooking steam supply passage is a straight passage, the path of the cooking steam flowing in the cooking steam supply passage is relatively short, and the flow time is relatively short, so that the cooking steam can be quickly supplied to the cooking cavity.

[0020] Optionally, the cooking steam outlet of the cooking steam exhaust passage is arranged on the passage top plate and at least partially located in a region corresponding to the position of the cooking steam inlet of the cooking steam exhaust passage. According to the present solution, a part of the cooking steam flows from bottom to top, the flow path is relatively short, and it is convenient to quickly exhaust to the external environment; and the steam passage assembly is omitted at the middle rear part of the longitudinal center line of the cover, the material cost of the steam passage assembly is reduced, and the front-rear direction dimension of the cover can be shortened, which is beneficial to product miniaturization.

[0021] Optionally, the steam channel assembly further comprises a steam channel component for cooking, which is arranged in the channel bottom shell and forms at least part of the steam supply channel for cooking. According to this solution, the steam supply channel for cooking can be easily arranged at a suitable position inside the cooking steam exhaust channel by means of the steam channel component for cooking, and the structure design is more flexible and has a larger degree of freedom.

[0022] Optionally, the steam channel component for cooking is formed by a groove-shaped member, and the circumferential side wall of the groove-shaped steam channel component for cooking is in abutment with the channel top plate to form the steam supply channel for cooking. According to this solution, the bottom wall and the circumferential side wall of the steam supply channel for cooking are formed by an independent channel member on the channel bottom shell, which can be easily arranged at a desired position on the channel bottom shell, thereby reducing the number of parts and simplifying the structure.

[0023] Optionally, the steam channel component for cooking is made of elastic sealing material, so that the steam channel component for cooking is in sealing abutment with the channel top plate. According to this solution, the steam channel component for cooking is used as a sealing member to form an internal seal to prevent the steam for cooking from overflowing to the outside, and an additional sealing ring is not needed to seal the gap between the steam channel component for cooking and the channel top plate, thereby reducing the number of parts, simplifying the structure and assembly process, and facilitating the effective use of the internal space of the cover body and the improvement of assembly efficiency.

[0024] Optionally, the steam channel assembly further comprises a pressing plate arranged in the groove of the steam channel component for cooking and connected with the channel bottom shell, and the pressing plate, the circumferential side wall of the steam channel component for cooking and the channel top plate form the steam supply channel for cooking. According to this solution, the pressing plate can better fix the steam channel component for cooking to the channel bottom shell to prevent the steam for cooking from leaking to the outside.

[0025] Optionally, the steam channel component for cooking is formed by a tubular member to independently form the steam supply channel for cooking. According to this solution, the steam for cooking can be kept at a higher temperature by avoiding a large amount of heat loss during transmission, and the structure of the steam channel for cooking is simplified and easy to assemble.

[0026] According to another aspect of the present application, a detachable cover assembly is provided for a cooking appliance, which comprises:

[0027] a cover plate;

[0028] a cover plate seat connected with the outer periphery of the cover plate;

[0029] The steam channel assembly according to any one of the above aspects is arranged on the same side of the cover plate and the cover plate seat.

[0030] According to the scheme, the cooking steam supply passage is located inside the cooking steam discharge passage and constitutes an outer sealing cooking steam passage sealing element applicable to the detachable cover assembly, so that the detachable cover assembly also obtains the above technical effects brought by the feature.

[0031] Optionally, the detachable cover assembly further comprises a steam passing cover located on the other side of the cover plate, the cover plate is provided with a steam passing portion through hole, and the steam passing cover is connected with the steam passing portion of the steam passage assembly at the steam passing portion through hole. According to the scheme, the steam passing cover is used to fix the cover plate and the passage bottom shell together; compared with using rivets and the like fasteners alone, the connection between the steam passing cover and the passage bottom shell is more and the connection area is larger, so that the two can be more firmly and reliably connected, thereby firmly and reliably connecting the passage bottom shell to the cover plate. The steam passing cover can be made of different materials or separately designed according to the needs of the user. Different components of the detachable cover assembly are designed correspondingly due to different functions to be performed and effects to be achieved, among which the surface of the cover plate is required to be made of food-grade stainless material as the top surface of the cooking cavity, and the surface is also the visible surface after the cooking appliance is opened, so the through openings of the cooking steam and the cooking steam are designed in a relatively small area of the visible surface, which can improve the user's visual experience in the structural design.

[0032] Optionally, the steam passing cover covers the steam passing portion from the lower side, and the steam passing cover is provided with a corresponding docking port for the cooking steam outlet of the cooking steam supply passage and the cooking steam inlet of the cooking steam discharge passage, respectively. According to the scheme, the steam passing cover can shield the steam passing portion, and when the cover body of the cooking appliance is opened, the steam passing cover can be observed, and the steam passing portion is not exposed, which can improve the user's visual experience in the structural design and reduce the damage probability of the components inside the cover body.

[0033] Optionally, the steam passing cover is connected with the steam passing portion through fasteners, and the peripheral edge of the steam passing cover is larger than the steam passing portion through hole. According to the scheme, the steam passing cover is easy to disassemble and assemble relative to the steam passing portion, which is convenient for disassembly, maintenance and assembly of the components such as the detachable cover assembly, and the fasteners can clamp the cover plate between the steam passing portion and the steam passing cover, thereby firmly and reliably fixing the cover plate.

[0034] Optionally, the steam passage assembly is inclined relative to the longitudinal center line of the detachable cover assembly, the front end portion of the steam passage assembly is arranged at the rear end portion of the cover plate, and the rear end portion of the steam passage assembly is arranged at the rear end corner portion of the cover plate seat. According to the scheme, the area near the rear end portion of the detachable cover assembly can be used to layout the steam passage assembly, and the cooking steam supply passage is contained inside the cooking steam discharge passage, so that the steam passage assembly occupies a relatively small cooking area of the detachable cover assembly corresponding to the cooking cavity, and the cooking area of the detachable cover assembly not occupied by the steam passage assembly is relatively large, so that the area can be designed diversely.

[0035] According to another aspect of the present application, a cover is provided for a cooking appliance, the cooking appliance comprising the cover and a pot body, the cover being arranged to be openably closed to the pot body to form a cooking cavity between the cover and the pot body, the bottom side of the cover being fixedly connected with a cover plate and comprising the steam passage assembly according to any one of the above aspects. According to this aspect, the cooking steam supply passage is located inside the cooking steam discharge passage and the outer sealing cooking steam passage sealing member constitutes an outer seal, and is suitable for the cover to which the cover plate is fixedly connected, so that the cover also obtains the above technical effects brought by this feature.

[0036] According to another aspect of the present application, a cover is provided for a cooking appliance, the cooking appliance comprising the cover and a pot body, the cover being arranged to be openably closed to the pot body to form a cooking cavity between the cover and the pot body, the bottom side of the cover being fixedly connected with a cover plate and comprising the steam passage assembly according to any one of the above aspects. According to this aspect, the cooking steam supply passage is located inside the cooking steam discharge passage and the outer sealing cooking steam passage sealing member constitutes an outer seal, and is suitable for the cover to which the cover plate is fixedly connected, so that the cover also obtains the above technical effects brought by this feature.

[0037] Optionally, the cover further comprises a top heating device, and the steam passage assembly is arranged in parallel with the top heating device in the horizontal direction. According to this aspect, the cooking appliance has the function of top heat radiation heating, and the heat generated by the top heat source can be radiated to the food in the cooking cavity to heat the food from the top side; the steam passage assembly and the top heating device occupy different areas of the cover in the horizontal direction, respectively, thereby improving the space utilization of the cover in the horizontal direction.

[0038] Optionally, the top heating device comprises a radiation plate and a heating assembly for heating the radiation plate, the radiation plate radiates infrared rays to the cooking cavity after being heated, and the heating assembly is located on the upper side of the radiation plate. According to this aspect, the radiation plate is relatively hard and is not easy to be damaged, and no additional structure needs to be designed to protect it, so that the cover is simple in structure and low in cost; the infrared rays generated by the radiation plate can effectively heat the surface layer of food and make the food evenly heated, thereby stimulating the aroma of the food.

[0039] Alternatively, the top heating device comprises an infrared heating pipe and a light-transmissive isolation plate, and the isolation plate is arranged on the lower side of the infrared heating pipe. According to this aspect, the infrared rays generated by the infrared heating pipe are radiated to the cooking cavity through the isolation plate, and the infrared rays can effectively heat the surface layer of food and make the food evenly heated, thereby stimulating the aroma of the food.

[0040] According to still another aspect of the present application, a cooking appliance is provided, which comprises a pot body, a steam generating device, and a cover according to any one of the above aspects, the cover being arranged openably on the pot body to form a cooking cavity between the cover and the pot body, the steam generating device being arranged on the cover or the pot body to generate a cooking steam and supply the cooking steam into the cooking cavity via the steam passage assembly, and to discharge a cooking steam in the cooking cavity via the steam passage assembly. According to the present solution, the high-temperature cooking steam can be supplied into the cooking cavity to heat and moisten the food in the cooking cavity, so as to avoid drying and yellowing of the food and improve the taste of the food. The cooking steam supply passage in the cover is arranged inside the cooking steam discharge passage and forms an outer sealing cooking steam passage sealing element, so that the cooking appliance can obtain the above technical effects brought by the feature. BRIEF DESCRIPTION OF DRAWINGS

[0041] The following drawings for embodiments of the present application are hereby incorporated into this application as part of the present application for understanding the present application. The embodiments of the present application and the description thereof shown in the drawings are used to explain the principles of the present application. In the drawings,

[0042] Figure 1 FIG. 1 is a perspective view of a cooking appliance according to the present application, in which a cover is in a closed state;

[0043] Figure 2 FIG. 2 is another perspective view of the cooking appliance shown in FIG. 1, in which the cover is in an open state; Figure 1

[0044] Figure 3 FIG. 3 is a sectional view of the cooking appliance shown in FIG. 1, in which a section plane is parallel to a longitudinal center line extending in a front-rear direction of a cover plate; Figure 1

[0045] Figure 4 FIG. 4 is an enlarged view of part A in FIG. 3; Figure 3

[0046] Figure 5 FIG. 5 is a perspective view of a top heating device and a cover main body shown in FIG. 1; Figure 3

[0047] Figure 6 FIG. 6 is a bottom view of a detachable cover assembly with a steam passage assembly shown in FIG. 1; Figure 3

[0048] Figure 7 FIG. 7 is an additional view of the detachable cover assembly with the steam passage assembly shown in FIG. 1; Figure 6

[0049] Figure 8 FIG. 8 is a perspective view of a passage bottom shell shown in FIG. 1 in an inverted state; Figure 3

[0050] Figure 9 ​​​​​​​for Figure 7 A side view of the removable cover assembly with steam passage components in the open position of the passage top plate;

[0051] Figure 10 for Figure 7 An exploded perspective view of the removable cover assembly with steam passage components shown.

[0052] Figure 11 for Figure 7 The sectional view shown is of a removable cover assembly with a steam passage assembly, wherein the tangent of the section is parallel to the line connecting the longitudinal centerline of the cover plate extending in the front-back direction and the centerline of the supplementary steam supply passage.

[0053] Figure 12 for Figure 10 Enlarged view of part B

[0054] Figure 13 for Figure 4 A magnified view of a portion of the image; and

[0055] Figure 14 for Figure 13 The exploded perspective view of the steam cover and its seal is shown.

[0056] Figure 15 for Figure 14 The image shown is a three-dimensional view of the steam cover in an inverted state;

[0057] Figure 16 for Figure 10 A perspective view of the cooking steam passage seal shown;

[0058] Figure 17 for Figure 12 A magnified view of a portion of the image.

[0059] Explanation of reference numerals in the attached figures:

[0060] 1. Cooking utensils 2. Pot body

[0061] 3 lids 4 inner pots

[0062] 5. Inner pot heating device; 6. Pivot shaft

[0063] 7. Pot opening sealing ring; 8. Lid body

[0064] 9. Liner 10. Cover assembly

[0065] 11 User Interaction Area 12 Torsion Spring

[0066] 13 Removable cover assembly 14 Cover plate

[0067] 15 Cover plate seat 16 Housing

[0068] 17 middle plate 18 base

[0069] 19 uncovering button 20 inner liner through hole

[0070] 21 cover plate through hole 22 support portion

[0071] 23 through hole sealing ring 24 pressing ring

[0072] 25 steam docking hole for re-cooking 26 recess

[0073] 27 steam valve 28 steam sealing member

[0074] 29 seat support portion 30 steam docking cover for re-cooking

[0075] 31 steam sealing member for re-cooking docking 32 steam passing portion through hole

[0076] 33 steam passing cover 34 steam passing cover sealing member

[0077] 35 pattern 36 interface portion

[0078] 37 flared portion 40 steam generating device

[0079] 41 water container 50 cooking steam temperature measuring device

[0080] 51 cooking steam temperature measuring element 52 re-cooking steam temperature measuring device

[0081] 53 re-cooking steam temperature measuring element 61 fixed column

[0082] 61a first fixed column 61b second fixed column

[0083] 62 accommodating portion 63 docking port

[0084] 63a re-cooking steam docking port 63b cooking steam docking port

[0085] 64 fitting hole 64a re-cooking steam fitting hole

[0086] 64b cooking steam fitting hole 65 positioning hole

[0087] 100 top heating device

[0088] 110 isolation plate 111 reflecting member

[0089] 120 heating assembly 130 peripheral portion sealing ring

[0090] 140 fixing member 200 steam passage assembly

[0091] 201 re-cooking steam inlet 202 re-cooking steam outlet

[0092] 203 cooking steam inlet 204 cooking steam outlet

[0093] 205 channel bottom shell 206 channel top plate

[0094] 207 cooking steam channel sealing member 208 complementary cooking steam channel member

[0095] 209 outer peripheral wall 210 / 46b rear end portion

[0096] 211 / 46a front end portion 212 fixed buckle

[0097] 213 movable buckle 214 buckle position

[0098] 217 steam passing portion 218 steam passing opening

[0099] 219 temperature measuring hole 221 pressing plate

[0100] 222 fixed hole 223 first fixed hole

[0101] 224 second fixed hole 225 locking hole

[0102] 226 concave cavity 227 limiting groove

[0103] 228 limiting groove wall 231 first sealing portion

[0104] 232 second sealing portion 233 fixed groove DETAILED DESCRIPTION

[0105] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail to avoid obscuring aspects of the present application.

[0106] To thoroughly understand the present application, detailed structures will be presented in the following description. It is obvious that the implementation of the present application is not limited to the special details familiar to those skilled in the art.

[0107] It should be understood that the terms used herein are for the purpose of describing specific embodiments and are not intended to limit the present application, and the singular forms "a," "an," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in the specification, it indicates the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0108] The ordinal numbers such as "first" and "second" used in this application are merely identifiers and have no other meaning, such as a specific order. Furthermore, for example, 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." It should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and similar expressions used in this application are for illustrative purposes only and are not intended to be limiting.

[0109] The specific embodiments of this application will be described in more detail below with reference to the accompanying drawings, which illustrate representative embodiments of this application and are not intended to limit this application.

[0110] like Figures 1 to 4 As shown, this application provides a cooking appliance 1, which includes a pot body 2 and a lid 3. The pot body 2 has a cylindrical inner pot storage section. The inner pot 4 can be fixedly installed in the inner pot storage section, or can be freely placed into or removed from the inner pot storage section to facilitate cleaning of the inner pot 4. The inner pot 4 is usually made of metal and has a circular opening on its upper surface for holding materials to be heated, such as rice or soup. The pot body 2 includes an inner pot heating device 5, such as a heating plate, for heating the inner pot 4. It is understood that the cooking appliance 1 according to this application can be a rice cooker, an electric pressure cooker, or other cooking appliances 1, and the cooking appliance 1 can have various functions such as cooking porridge in addition to cooking rice.

[0111] The lid 3 has a shape substantially corresponding to the pot body 2. The lid 3 is closable on the pot body 2. In one example, the lid 3 is pivotally connected to the pot body 2 via a pivot axis 6 and can pivot freely about the pivot axis 6 between a closed position and an open position relative to the pot body 2, facilitating the closing and opening of the pot body 2. In another example, the lid 3 and pot body 2 are connected by interlocking and easily disassembled fasteners, so that they are tightly connected during cooking and can be separated into two independent units, for example, during cleaning. When the lid 3 is closed on the pot body 2, it covers the inner pot 4, forming a cooking cavity between them. The lid 3 typically also has a pot opening sealing ring 7, which can be made of, for example, rubber material, and is positioned between the lid 3 and the inner pot 4 to seal the cooking cavity when the lid 3 is closed.

[0112] It should be noted that the directional terms used in this article to describe the various parts and components of the cooking appliance 1, such as "up", "down", "above", "below", "upward", "downward", "facing upward", and "facing downward", are relative to the cooking appliance 1 when it is placed horizontally, upright, and the lid 3 is closed.

[0113] The cover body 3 basically comprises a cover main body 8. The cover main body 8 comprises an inner liner 9 and a face cover assembly 10. The face cover assembly 10 is arranged on the upper side or outer side of the inner liner 9 and can cover the inner liner 9. The upper surface of the face cover assembly 10 is provided with a user interaction area 11 for user operation. The inner liner 9 can be connected with the face cover assembly 10 by suitable means such as clamping, fastening by fasteners such as screws, bonding, etc. The pivot shaft 6 is arranged on the inner liner 9 and is sleeved with a torsion spring 12 so as to automatically open the cover. The pot body further comprises an opening button 19, and an opening mechanism is arranged in the cover body. By pressing the opening button 19, the opening mechanism is unlocked, and the cover body 3 is automatically opened under the elastic force of the torsion spring 12. One end of the cover body 3 provided with the opening mechanism or adjacent to the opening button is the front end, and the reverse end of the front end is the rear end. Generally, the rear end of the cover body 2 is adjacent to the pivot shaft 6 of the cover body 2 and the pot body 2.

[0114] In one example, the cover body 3 further comprises a detachable cover assembly 13. The detachable cover assembly 13 is arranged on the lower side of the cover main body 8 and is detachably connected with the cover main body 8 in the form of an assembly, so that the detachable cover assembly 13 is detachably mounted on the cover body 3 from the lower side. In other words, the bottom side of the cover body 3 is detachably connected with the detachable cover assembly 13. When the detachable cover assembly 13 needs to be cleaned, the detachable cover assembly 13 can be detached from the cover body 3. Specifically, the detachable cover assembly 13 is arranged on the lower side or inner side of the inner liner 9 and is detachably connected to the inner liner 9. For example, the detachable cover assembly 13 is movably connected to the inner liner 9 by a plug-in and / or clamping structure. The detachable cover assembly 13 basically comprises a cover plate 14, a cover plate seat 15 and the above-mentioned pot opening sealing ring 7. The cover plate 14 can be selected as a metal plate. At least part of the lower surface of the cover plate 14 forms the top surface of the cooking cavity. The cover plate seat 15 can detachably connect the cover plate 14 to the inner liner 9. The cover plate 14 can be connected with the cover plate seat 15 by other suitable means such as buckling or fastening by fasteners. Part of the pot opening sealing ring 7 is pressed between the cover plate 14 and the cover plate seat 15.

[0115] In another alternative example, the cover body 3 comprises the above-mentioned cover plate 14, which is arranged on the bottom side of the cover body 3 and is fixedly connected to the cover main body 8, specifically to the inner liner 9, so that the cover plate 14 is non-detachably mounted on the cover body 3.

[0116] The pot body 2 basically comprises an outer shell 16, a middle plate 17 arranged on the upper side of the outer shell 16 and a base 18 arranged on the lower side of the outer shell 16. The lower end of the outer shell 16 can be connected with the outer periphery of the middle plate 17 by suitable means such as clamping, fastening by fasteners such as screws, bonding, etc. The lower end of the outer shell 16 can be connected with the upper end of the base 18 by suitable means such as clamping, fastening by fasteners such as screws, bonding, etc. The outer shell 16, the middle plate 17 and the base 18 form an inner pot receiving part. The inner pot heating device 5 can be arranged between the base 18 and the bottom of the inner pot 4 and is connected to the base 18, so it is also called a bottom heating device.

[0117] The cooking appliance 1 of the present application also has the function of top heat radiation heating, the heat generated by the top heat source can be radiated to the food in the cooking cavity to heat the food from the top side. Specifically, the cover body 3 comprises a top heating device 100 located in the area corresponding to the inner pot 4 of the cover body 3, which can generate heat that can be transmitted to the cooking cavity by heat radiation. The top heating device 100 can be any suitable heating device such as an electric heating device, an electromagnetic heating device or an infrared heating device. The electric heating device can be an electric heating tube, an electric heating wire, an electric heating film or any suitable electric heating device. The electromagnetic heating device comprises an electromagnetic coil and a coil disc, the electromagnetic coil is wound on the coil disc, in this scheme, the cover plate 14 on the lower side of the coil disc is a metal member, the alternating magnetic field generated by the electromagnetic coil can act on the metal cover plate 14 below, so that the cover plate 14 itself generates heat to radiate heat to the cooking cavity. The illustrated example shows that the top heating device 100 is an infrared heating device for radiating infrared rays to the cooking cavity during cooking. The infrared rays radiated to the cooking cavity can effectively heat the surface food and make the food evenly heated, thereby stimulating the aroma of the food.

[0118] The cooking appliance 1 of the present application also has the function of steam cooking, high-temperature steam can be delivered to the cooking cavity to heat and moisten the food in the cooking cavity, for example, high-temperature steam is supplied to the cooking cavity during the holding stage, which can keep the food such as rice moist and prevent the food from drying and yellowing. Specifically, the cooking appliance 1 also comprises a steam generating device 40 for generating cooking steam to cook the cooking cavity. In order to deliver the cooking steam to the cooking cavity, the cover body 3 is provided with a cooking steam supply channel P11 communicating with the cooking cavity. The cooking steam supply channel P11 is used for supplying the cooking steam for the cooking cavity, specifically, it can receive the cooking steam from the steam generating device 40 and deliver the cooking steam to the cooking cavity.

[0119] The steam generating device 40 can be arranged in the cover body 3 or the pot body 2. Figure 2 An example of the steam generating device 40 arranged in the pot body 2 is shown schematically. For example, the steam generating device 40 basically comprises a water container and a water container heating device. The water container is arranged in the pot body 2 and can store water for generating cooking steam. Optionally, the water container is located in the receiving cavity of the pot body 2 and protrudes from the upper surface of the pot body 2 to facilitate the removal of the water container from the pot body 2. The water container has a top opening for forming an outlet to allow the cooking steam to overflow. The water container heating device is usually arranged below the water container to heat the water in the water container to generate cooking steam. The cooking steam can enter the cooking steam supply channel P11 and then enter the cooking cavity to keep the food such as rice in the inner pot 4 moist. When the steam generating device 40 is arranged in the cover body 3, the arrangement position and structure of the water container and the water container heating device are different from the above-mentioned example.

[0120] When cooking, the food and water in the inner pot 4 of the cooking appliance 1 generate cooking steam. To vent this cooking steam to the outside environment, such as... Figure 3 and Figure 4 As shown, the cover 3 is also provided with a cooking steam exhaust channel P12 and a steam exhaust channel P2 for the steam discharged from the cooking chamber to pass through. The cooking steam exhaust channel P12 is connected to the cooking chamber and the steam exhaust channel P2. The cooking steam can first enter the cooking steam exhaust channel P12 and then be discharged to the external environment through the steam exhaust channel P2.

[0121] For an infrared heating device, one example is that the device includes an infrared heating tube and a light-transmitting insulating plate. For instance, an infrared heating element is encapsulated within a glass tube to form the infrared heating tube, with the insulating plate disposed below the infrared heating tube. An alternative example is that the infrared heating tube can be replaced by an electrically conductive heating film disposed on a plate-like member, in which case the plate-like member for arranging the heating film is at least partially light-transmitting. The infrared heating device also includes a reflective member 111 to reflect upwardly radiated infrared light into the cooking cavity, thereby improving heating efficiency.

[0122] Another alternative example is an infrared heating device comprising a radiant plate and a heating assembly 120 for heating the radiant plate, the heating assembly 120 being located above the radiant plate. Heat generated by the heating assembly 120 is transferred to the radiant plate, which, when heated, radiates infrared rays into the cooking cavity. The radiant plate can be a ceramic plate, a carbon plate made of carbon material, etc. The radiant plate is exposed inside the cooking cavity, and at least a portion of its lower surface forms the top surface of the cooking cavity. The temperature of the radiant plate can be controlled by controlling the power or heating temperature of the heating assembly 120.

[0123] Using the illustrated example, the structure of cover 3 will be further described. For example... Figure 4 As shown, the inner liner 9 has an inner liner through-hole 20, and the partition plate 110 is installed at the inner liner through-hole 20. The cover plate 14 is disposed below the partition plate 110. The cover plate 14 is partially provided with a cover plate through-hole 21. The cover plate through-hole 21 corresponds to the position of the partition plate 110. In other words, the cover plate through-hole 21 is located directly below the partition plate 110. Infrared rays generated by the partition plate 110 can be radiated toward the inner pot 4 through the inner liner through-hole 20 and the cover plate through-hole 21. Alternatively, the cover plate 14 may be at least partially transparent. The cover plate 14 may be made entirely of a transparent material such as glass, or the portion corresponding to the partition plate 110 may be made of a transparent material.

[0124] The inner liner 9 can be provided with a support portion 22. The support portion 22 is arranged around the inner liner through hole 20, and forms a closed annular structure. The outer edge of the isolation plate 110 can be lapped on the bottom wall of the support portion 22 and abut against the side wall of the support portion 22. The support portion 22 can provide upward support force to the isolation plate 110 and limit the movement of the isolation plate 110 in the horizontal direction, facilitating the fixation of the isolation plate 110. In one example, the support portion 22 can be concave downward, and the isolation plate 110 is accommodated in the concave support portion 22. In another example, the support portion 22 is a planar structure, i.e. not concave. The outer peripheral portion of the isolation plate 110 is sleeved with a peripheral sealing ring 130 to form a seal between the isolation plate 110 and the inner liner 9. The top heating device 100 further comprises a fixing member 140. The fixing member 140 can be connected with the inner liner 9, and the outer edge of the isolation plate 110 is clamped between the fixing member 140 and the support portion 22. The fixing member 140 is optionally arranged in an annular shape, which can be connected with the inner liner 9 by clamping, fastening by fasteners such as screws, welding or other suitable methods.

[0125] In addition, the cover body 3 can further comprise a through hole sealing ring 23. The through hole sealing ring 23 can be arranged on the peripheral portion of the cover plate through hole 21 and located on the side opposite to the side where the pot opening sealing ring 7 is located, specifically, located between the isolation plate 110 and the inner liner 9 and abuts against the lower surface of the isolation plate 110. Forming a seal at the cover plate through hole 21 can avoid steam entering the interior of the cover body 3 through the gap between the isolation plate 110 and the cover plate 14, thereby improving the sealing effect of the cover body 3. For example, a compression ring 24 can be arranged to clamp a part of the through hole sealing ring 23 between the compression ring 24 and the cover plate 14, and the compression ring 24 can be fixed with the cover plate 14 by bendable clamping corners.

[0126] In order to simplify the structure and optimize the utilization of the space in the cover body 3, the present application uses one component to jointly form the cooking steam supply passage P11 and the cooking steam discharge passage P12, rather than using different components to form the two passages respectively. Specifically, referring to Figures 7 to 10 , the cover body 3 further comprises a steam passage assembly 200 for forming the cooking steam supply passage P11 and the cooking steam discharge passage P12. The steam passage assembly 200 is located on the upper side of the cover plate 14 and the lower side of the inner liner 9. The steam passage assembly 200 is arranged in parallel with the top heating device 100 in the horizontal direction. The steam passage assembly 200 is located on one side of the top heating device 100, specifically, the rear side of the top heating device 100. As shown in Figure 4 and Figure 5 , the inner liner 9 has a recess 26 for accommodating the steam passage assembly 200. The recess 26 is located on the rear side of the inner liner through hole 20 and is concave upward from the lower surface of the inner liner 9. The steam passage assembly 200 is accommodated in the recess 26.

[0127] Please refer to Figure 8The steam passage assembly 200 is further provided with a supplementary cooking steam inlet 201 and a supplementary cooking steam outlet 202 which are in communication with the supplementary cooking steam supply passage P11. The supplementary cooking steam inlet 201 is configured to receive steam from the steam generation device 40, and the supplementary cooking steam outlet 202 is configured to communicate the supplementary cooking steam supply passage P11 with the cooking cavity. The supplementary cooking steam inlet 201 is located above the water container 41. Figure 11 and Figure 12 The steam flow path is schematically indicated by arrows. In particular, steam generated from water in the water container 41 after being heated enters the supplementary cooking steam supply passage P11 via the supplementary cooking steam inlet 201, flows along the supplementary cooking steam supply passage P11, and enters the cooking cavity via the supplementary cooking steam outlet 202.

[0128] Referring to Figure 8 and Figure 13 The steam passage assembly 200 is further provided with a cooking steam inlet 203 and a cooking steam outlet 204 which are in communication with the cooking steam exhaust passage P12. The cooking steam inlet 203 is configured to communicate the cooking steam exhaust passage P12 with the cooking cavity, and the cooking steam outlet 204 is configured to exhaust steam in the cooking steam exhaust passage P12. The lid body 8 is provided with the steam exhaust passage P2. The cooking steam outlet 204 is located above the steam exhaust passage P2 of the lid body 8. Referring back to Figure 3 and Figure 4 The lid 3 further comprises a steam passage structure forming the steam exhaust passage P2, which can include a steam valve 27 and a steam seal 28 which are vertically disposed in the lid body 8. Figure 13 The steam flow path is schematically indicated by arrows. In particular, steam in the cooking cavity enters the cooking steam exhaust passage P12 via the cooking steam inlet 203, flows along the cooking steam exhaust passage P12, and flows to the steam exhaust passage P2 via the cooking steam outlet 204, and is then exhausted to the ambient environment.

[0129] Referring back to Figure 9 The steam passage assembly 200 comprises a passage bottom shell 205 and a passage top plate 206. The passage top plate 206 is located below the passage bottom shell 205 and can be coupled to the passage bottom shell 205. The steam seal 28 abuts against an upper surface of the passage top plate 206. The outer periphery of the passage bottom shell 205 and the passage top plate 206 correspond in shape and size. The outer periphery of the passage bottom shell 205 and the passage top plate 206 is schematically shown as a substantially rounded long strip shape.

[0130] The bottom shell 205 is connected to the top plate 206, forming a supplementary steam supply passage P11 and a cooking steam exhaust passage P12 between them. Specifically, a portion of these two steam passages P1 is formed by the bottom shell 205 or components thereon, while another portion is formed by the top plate 206 and components thereon. The steam passage assembly 200 includes two passage seals, namely a supplementary steam passage seal and a cooking steam passage seal 207, used to form seals at the supplementary steam supply passage P11 and the cooking steam exhaust passage P12, respectively. As an example, the supplementary steam supply passage P11 and the cooking steam exhaust passage P12 are located in different areas of the bottom shell 205. In this example, the bottom shell 205 forms the bottom wall of these two steam passages P1, and the two passage seals are clamped at different locations on the passage walls, thereby the bottom shell 205 and the top plate 206 enclose these two steam passages P1.

[0131] Another example is, such as Figure 9 As shown, the supplementary steam supply passage P11 is located inside the cooking steam exhaust passage P12. In this example, the bottom shell 205 forms the bottom wall and outer peripheral wall 209 of the cooking steam exhaust passage P12. The bottom shell 205 and the top plate 206 are connected at their outer peripheries to form the cooking steam exhaust passage P12. A cooking steam passage seal 207 is located between the outer peripheries of the bottom shell 205 and the top plate 206, thereby forming a sealed cooking steam exhaust passage P12. The steam passage assembly 200 also includes a supplementary steam passage component 208, which is located between the bottom shell 205 and the top plate 206 to form the supplementary steam supply passage P11. The supplementary steam passage component 208 is located on the bottom shell 205 and within the area defined by the outer periphery of the bottom shell 205.

[0132] At least the bottom shell 205 of the steam channel assembly 200 is mounted on the removable cover assembly 13, or in other words, the steam channel assembly 200 is part of the removable cover assembly 13. Thus, the steam channel assembly 200 is at least partially removed from the cover 3 along with the removable cover assembly 13, allowing for cleaning of the two steam channels P1 on the steam channel assembly 200. The cover through-hole 21 is located near the front end 46a of the removable cover assembly 13. The steam channel assembly 200 is located near the rear end 46b of the removable cover assembly 13. The cover through-hole 21 and the steam channel assembly 200 can be arranged front and rear, with the cover through-hole 21 in front and the steam channel assembly 200 in the rear, allowing the cover through-hole 21 to be designed to occupy a larger cooking area. The cover 14 defines a cooking area within the pot opening sealing ring 7, and the cover through-hole 21 is located within this cooking area and occupies an area greater than 3 / 5 of the cooking area, for example, 8 / 10, 4 / 5, etc. The steam passage assembly 200 is located in the area outside the cover plate through hole 21.

[0133] The channel top plate 206 is separable from the channel bottom shell 205 to expose the interior of the steam channel P1 for better cleaning of the interior of the steam channel P1. In the illustrated example, the channel top plate 206 is detachably connected to the channel bottom shell 205 to be detached from or mounted to the cover body 3 together with the channel bottom shell 205. When cleaning of the steam channel P1 is required, the whole of the steam channel assembly 200 and the detachable cover assembly 13 can be detached from the cover body 3, and then the channel top plate 206 is detached from the channel bottom shell 205. This exposes part of the steam channel P1 on the channel top plate 206 and part of the steam channel P1 on the channel bottom shell 205. The detachable cover assembly 13 and the channel bottom shell 205 detached from the cover body 3 can be cleaned by the user with water, and the channel top plate 206 detached from the cover body 3 can be cleaned by the user with water separately. The user can easily clean the steam channel P1 with good cleaning effect.

[0134] Alternatively, the channel top plate 206 is connected to the cover body 8. The channel top plate 206 covers the channel bottom shell 205 without fixed connection therebetween. When cleaning of the steam channel P1 is required, the whole of the channel bottom shell 205 and the detachable cover assembly 13 can be detached from the cover body 3. This exposes part of the steam channel P1 on the channel top plate 206 and part of the steam channel P1 on the channel bottom shell 205. The detachable cover assembly 13 and the channel bottom shell 205 detached from the cover body 3 can be cleaned by the user with water, and the channel top plate 206 remaining on the cover body 3 can be cleaned by the user with wiping. In this scheme, the channel top plate 206 is butted against the channel bottom shell 205 on the detachable cover assembly 13 when the detachable cover assembly 13 is mounted to the cover body 3 to form the enclosed steam channel P1.

[0135] The channel bottom shell 205 is provided with the above-mentioned cooking steam outlet 203 and the cooking steam inlet 203. The channel top plate 206 is provided with the cooking steam outlet 204. The cooking steam outlet 204 is at least partially located in a region corresponding to the position of the cooking steam inlet 203. In other examples not shown, the cover plate 14 can be provided with the above-mentioned cooking steam outlet 203 and the cooking steam inlet 203, and the channel bottom shell 205 is provided with a channel structure at positions corresponding to the cooking steam inlet 201 and the cooking steam outlet 202. The channel structure is sandwiched with a sealing member between the cover plate 14. In the illustrated example where the steam generating device 40 is arranged in the pot body 2, the channel bottom shell 205 is provided with the above-mentioned cooking steam inlet 201 to admit steam from the lower side. In the example where the steam generating device 40 is arranged in the cover body 3, the channel top plate 206 is provided with the above-mentioned cooking steam inlet 201 to admit steam from the upper side.

[0136] Referring to Figure 13The cover body 3 also includes a cooking steam temperature measuring device 50 for detecting the temperature of cooking steam. The cooking steam temperature measuring device 50 is located on the cover body 8 and includes a cooking steam temperature measuring element 51. The cooking steam temperature measuring element 51 extends into the cooking steam exhaust channel P12. The cover body 3 also includes a supplementary cooking steam temperature measuring device 52 for detecting the temperature of supplementary cooking steam. The supplementary cooking steam temperature measuring device 52 is located on the cover body 8 and includes a supplementary cooking steam temperature measuring element 53. The supplementary cooking steam temperature measuring element 53 extends into the cooking supplementary cooking steam supply channel P11 through a temperature measuring hole 219 in the channel top plate 206.

[0137] The construction of the steam channel assembly 200 is further described below using the illustrated example.

[0138] like Figures 6 to 10 As shown, the steam passage assembly 200 spans across the same side of the cover plate 14 and the cover plate seat 15. The passage bottom shell 205 extends beyond the rear of the cover plate 14 in both the longitudinal and transverse directions on the horizontal plane. The steam passage assembly 200 is inclined relative to the longitudinal centerline of the removable cover assembly 13. The supplementary cooking steam inlet 201 is located at the rear end 210 of the passage bottom shell 205, and this rear end 210 is located at the rear corner of the cover plate seat. The steam generator 40 is located at the rear corner of the pot body 2, and the rear end 210 of the passage bottom shell 205 corresponds to the corner of the cover body 3. This allows the position of the supplementary cooking steam inlet 201 to correspond vertically with the water container 41 of the steam generator 40, and steam enters the supplementary cooking steam inlet 201 from bottom to top, making the steam path between the supplementary cooking steam inlet 201 and the water container 41 shorter and more direct. At least the supplementary cooking steam outlet 202 is located at the front end 211 of the passage bottom shell 205, and this front end 211 is located at the rear end of the cover plate. In the illustrated example, both the supplementary steam outlet 202 and the cooking steam inlet 203 are located at the front end 211 of the channel bottom shell 205. The cooking steam inlet 203 is distributed around the supplementary steam outlet 202.

[0139] The supplementary cooking steam supply channel P11 has a supplementary cooking steam outlet 202 at one end and a supplementary cooking steam inlet 201 at the other end. In other words, the supplementary cooking steam inlet 201 and the supplementary cooking steam outlet 202 are located at opposite ends of the supplementary cooking steam supply channel P11. Optionally, the supplementary cooking steam supply channel P11 is a straight channel. Furthermore, the supplementary cooking steam supply channel P11 is inclined relative to the longitudinal centerline of the cover plate 14. It should be noted that in the example of the removable cover assembly 13, the longitudinal centerlines of the cover plate 14 and the removable cover assembly 13 are collinear. It should be noted that the terms "longitudinal" and "longitudinal direction" used herein refer to the front-to-back direction, while "lateral" and "lateral direction" refer to the left-to-right direction.

[0140] like Figure 9As shown, in order to secure the passage bottom shell 205 to the detachable lid assembly 13, the lid base 15 comprises a plate-like base support portion 29 which protrudes from the rear portion of the lid plate 14. The steam passage assembly 200 is straddled on the lid plate 14 and the base support portion 29. The passage bottom shell 205 can be connected to the base support portion 29 by welding, fastener connection such as screws, or any suitable means. Please refer to Figure 8 and Figure 11 The passage bottom shell 205 or the base support portion 29 is provided with a reheat steam docking lid 30 which can be closed on the top opening of the water container 41 when the lid body 3 is closed to the pot body 2. The reheat steam docking lid 30 is further provided with a reheat steam docking seal 31 for forming a seal between the water container 41 and the reheat steam docking lid 30 when the lid body 3 is closed. In other words, the reheat steam docking seal 31 is closed on the top opening as mentioned above when the lid body 3 is closed to the pot body 2. The reheat steam docking lid 30 is provided with a reheat steam inlet 201 through which reheat steam from the reheat steam generator 40 enters the reheat steam supply passage P11. The reheat steam docking lid 30 is connected to or integrally provided at the region adjacent to the rear end portion of the passage bottom shell 205 or the lid base 15, specifically at the base support portion 29. Exemplarily, the reheat steam docking lid 30 is provided at the passage bottom shell 205, and the rear end corner portion of the base support portion 29 is provided with a reheat steam docking hole 25 which is in communication with the reheat steam inlet 201 of the reheat steam supply passage P11 for guiding reheat steam from the reheat steam generator 40. The reheat steam docking seal 31 is provided through the reheat steam docking hole 25 and connected to the lid base 15.

[0141] Preferably, the passage top plate 206 is connected to the passage bottom shell 205 by a manually detachable structure, for example, the passage top plate 206 can be detachably connected to the passage bottom shell 205 by a snap structure. The snap structure is provided at the outer periphery of both the passage bottom shell 205 and the passage top plate 206. The snap structure comprises fixed snaps 212 and movable snaps 213 which correspond to different side edges of the steam passage assembly 200 respectively. The fixed snaps 212 and the movable snaps 213 can be provided at the passage bottom shell 205. The passage top plate 206 is correspondingly provided with snap positions 214 to which the fixed snaps 212 and the movable snaps 213 are detachably snapped respectively.

[0142] The region of the lid plate 14 adjacent to the rear end portion 46b is provided with an inlet and outlet concentration distribution region R of the steam passage assembly 200, Figure 8The approximate location and shape of the import and export concentrated distribution area R is shown by a dashed line. The import and export concentrated distribution area R is provided with a supplementary cooking steam outlet 202 and a cooking steam inlet 203. As shown in the example, the passage bottom shell 205 is provided with the import and export concentrated distribution area R, which is arranged in the area adjacent to the rear end portion 46b of the cover plate 14. This design ingeniously concentrates the supplementary cooking steam outlet 202 and the cooking steam inlet in a relatively small area, and it is not necessary to separately provide a sealing member and a sealing structure at the two ports, which simplifies the manufacturing and assembly process and also makes the structure more compact. The import and export concentrated distribution area R is arranged at the front end portion of the passage bottom shell 205 in the longitudinal direction.

[0143] Specifically, the passage bottom shell 205 includes a downwardly protruding steam passing portion 217, which is provided with a steam passing port 218 for communicating the steam passage P1 with the cooking cavity. The steam passing port 218 includes the supplementary cooking steam outlet 202 communicating with the supplementary cooking steam supply passage P11 and / or the cooking steam inlet 203 communicating with the cooking steam exhaust passage P12. That is, the supplementary cooking steam outlet 202 and / or the cooking steam inlet 203 are arranged in the steam passing portion 217. In the example, the import and export concentrated distribution area R is arranged in the steam passing portion 217, so that the supplementary cooking steam outlet 202 and the cooking steam inlet 203 are arranged in the steam passing portion 217. The cover plate 14 is provided with a steam passing portion passing hole 32, and the steam passing portion 217 is arranged to pass through the steam passing portion passing hole 32. The shape of the import and export concentrated distribution area R corresponds to the shape of the steam passing portion 217, for example, a circular shape, etc.

[0144] The passage bottom shell 205 can be closer to the cover plate 14 at the downwardly protruding steam passing portion 217, and the steam passing portion 217 is limited in the steam passing portion passing hole 32, which can on the one hand enable the steam passing port 218 on the steam passing portion 217 to communicate with the cooking cavity, and on the other hand limit the horizontal position of the passage bottom shell 205 at the steam passing portion 217, avoiding horizontal movement of the passage bottom shell 205 relative to the cover plate 14.

[0145] The steam passing portion 217 is located at the front end portion 211 of the passage bottom shell 205 in the longitudinal direction. In design, the steam passage assembly 200 in the longitudinal direction can be better utilized to arrange the steam passage P1 with a longer extension path, so as to miniaturize the steam passage assembly 200 in the longitudinal direction, so that the part of the steam passage assembly on the cover plate 14 has a smaller size and a smaller area ratio. The steam passing portion 217 is configured to be adapted in shape and size to the steam passing portion passing hole 32. The structure between the steam passing portion 217 and the cover plate 14 can be more compact, which facilitates effective limitation of the horizontal movement of the passage bottom shell 205 relative to the cover plate 14, and in addition, the overall appearance of the inner side of the cover body 3 can be improved in shape.

[0146] In some examples, the steam supply channel member 208 is formed by a groove, and the circumferential wall of the groove-shaped steam supply channel member 208 abuts against the channel top plate 206 to form the steam supply channel P11. The steam supply channel member 208 is made of elastic sealing material and abuts against the channel top plate 206. In other words, the steam supply channel member 208 is a part made of flexible material. Thus, the steam supply channel member 208 abuts against the channel top plate 206 to form a seal therebetween. The steam supply channel member 208 itself has the functions of sealing and elastic deformation, and can be used as a sealing member, and thus can also be referred to as a steam supply channel sealing member. In this way, no additional sealing ring is needed to seal the gap between the steam supply channel member 208 and the channel top plate 206. In addition, a seal is also formed between the steam supply channel member 208 and the channel bottom shell 205, so as to prevent steam from leaking out.

[0147] The steam supply channel member 208 is provided with a pressing plate 221, which presses the bottom wall of the steam supply channel member 208 against the channel bottom shell 205. The circumferential wall of the steam supply channel member 208, together with the pressing plate 221, forms most of the steam supply channel P11, and the top of the circumferential wall abuts against the lower bottom surface of the channel top plate 206, thereby forming the entire steam supply channel. The pressing plate is preferably made of rigid metal material that is not prone to rust. Near the steam outlet 202, fasteners are used to connect the pressing plate 221, the bottom wall of the channel bottom shell 205, and the cover plate 14 of the detachable cover assembly 13. The pressing plate 221 is connected to the channel bottom shell 205 by at least two fasteners. The pressing plate 221 and the steam supply channel member 208 are spaced apart and provided with locking holes 225, through which the corresponding fasteners pass.

[0148] In some alternative examples, the steam channel assembly is provided with a steam supply channel member that can independently form the steam supply channel. For example, the steam supply channel member can be formed by a tubular member such as a rubber tube, or by a separate channel.

[0149] One prominent optimization and improvement of the present application is that the channel bottom shell 205 in the steam channel assembly 200 is connected to the cover plate 14 by means of the steam cover 33. The steam cover 33 is arranged at the rear of the cover plate 14, away from the opening mechanism.

[0150] Please refer to Figure 6 and Figure 10A steam passage cover 33 is located on the opposite side of the cover plate 14 from the steam passage assembly 200, i.e., on the lower side of the cover plate 14, to fix the steam passage part 217 to the cover plate 14. The passage bottom shell 205 (or the steam passage part 217) and the steam passage cover 33 are connected at the steam passage through hole 32, thus occupying opposite sides of the cover plate 14. The steam passage cover 33 covers the steam passage part 217 from below, and the steam passage cover 33 has a mating interface 63 corresponding to the position of the steam passage port 218 to allow steam to pass through. Preferably, the steam passage cover 33 is connected to the steam passage part 217 by fasteners, and the periphery of the steam passage cover 33 is larger than the steam passage through hole 32. The steam cover 33 is used to fix the cover plate 14 and the channel bottom shell 205 together. Compared with fasteners such as rivets, the steam cover 33 has more connecting parts and a larger connecting area with the channel bottom shell 205, so the two can be connected more firmly and reliably, thus firmly and reliably connecting the channel bottom shell 205 to the cover plate 14. Furthermore, the contact area between the steam cover 33 and the cover plate 14 is larger. During the installation process, the pressure of the steam cover 33 on the cover plate 14 is more dispersed, which can effectively prevent the cover plate 14 from undergoing local deformation, improve product quality and the overall appearance of the inner side of the cover 3.

[0151] The cover plate 14 is made of metal. Using the steam cover 33 to secure the metal cover plate effectively prevents localized deformation. The channel bottom shell 205 is made of non-metallic material. Using a non-metallic channel bottom shell 205 makes its connection structure with the steam cover 33 easier to manufacture, resulting in lower material and manufacturing costs. The steam cover 33 is also made of non-metallic material. Using a non-metallic steam cover 33 prevents scratches on the cover plate 14 during installation, and its connection structure with the channel bottom shell 205 is easy to manufacture, resulting in lower material and manufacturing costs.

[0152] like Figure 14 and Figure 15 As shown, interface 63 includes a supplementary steam interface 63a corresponding to the supplementary steam outlet 202 and a cooking steam interface 63b corresponding to the cooking steam inlet 203. The supplementary steam interface 63a is located in the center of the steam cover 33, and the cooking steam interfaces 63b are distributed around the periphery of the supplementary steam interface 63a. The supplementary steam interfaces 63a are spaced apart circumferentially along the steam cover 33; the cooking steam interfaces 63b are symmetrically distributed on both sides of the supplementary steam interface 63a. In the illustrated embodiment, there are two cooking steam interfaces 63b, symmetrically distributed on both sides of the cooking steam interface 63b. The cooking steam interfaces 63b are strip-shaped, and their extended shape corresponds to the shape of the steam cover 33; for example, if the steam cover 33 is circular, the cooking steam interface 63b is arc-shaped. This arrangement allows for smoother exhaust of cooking steam and improves exhaust efficiency.

[0153] The steam docking interface 63a of the steam replenishment includes an interface portion 36 and a flared portion 37 located at the lower side of the interface portion 36. The flared portion 37 has a larger diameter than the interface portion 36, and the diameter of the flared portion 37 gradually increases in the direction away from the interface portion 36, so that the steam injection area of the steam replenishment is enlarged, which is conducive to the steam being injected to a larger range of food. In order to improve the visual experience of the user, or in other words, to improve the visual effect of the steam cover 33, the wall surface of the flared portion 37 can be provided with a pattern 35.

[0154] As shown in Figure 14 and Figure 15 , the steam cover 33 is provided with a fixed column 61 extending upward, and correspondingly, as shown in Figure 8 , the steam cover portion 217 is provided with a fixed hole 222 suitable for the fixed column 61. The fixed column 61 is arranged in the fixed hole 222, and the fastener is locked to the fixed column 61 from the upper side of the steam cover portion. When there is a single fixed column 61, even if the fastener locks the fixed column 61, the steam cover 33 still has a certain degree of rotational freedom relative to the steam cover portion 217. Preferably, the steam cover 33 is provided with at least two fixed columns 61 extending upward and connected to the steam cover portion 217, and the at least two fixed columns 61 are arranged in a spaced manner and distributed on both sides of the center of the steam cover 33. The steam cover portion 217 is correspondingly provided with at least two fixed holes 222. For example, in the embodiment shown, the number of fixed columns 61 is two. Alternatively, the number of fixed columns 61 can also be three or more.

[0155] Further, the fixed column 61 includes a first fixed column 61a, and the fixed hole 222 includes a first fixed hole 223 corresponding to the position of the first fixed column 61a, and the first fixed column 61a is arranged in the first fixed hole 223. The fastener is locked to the first fixed column 61a located in the first fixed hole 223 from the upper side of the pressing plate 221. The fixed column 61 includes a second fixed column 61b, and the fixed hole 222 includes a second fixed hole 224 corresponding to the position of the second fixed column 61b. The steam cover portion 217 is provided with a recessed cavity 226 recessed downward from the bottom surface of the channel bottom shell 205, and the second fixed hole 224 extends downward from the bottom surface of the recessed cavity 226. The second fixed column 61b is arranged in the second fixed hole 224. The fastener is locked to the second fixed column 61b located in the second fixed hole 224 from the upper side of the recessed cavity 226.

[0156] The cover body 3 further includes a steam cover sealing member 34. The steam cover sealing member 34 is located between the steam cover 33 and the cover plate 14 and is provided with a matching hole 64. The steam port 218 is in sealed communication with the docking interface 63 via the matching hole 64. It can be understood that the matching hole 64 includes a steam replenishment matching hole 64a corresponding to the steam replenishment docking interface 63a, and a cooking steam matching hole 64b corresponding to the cooking steam docking interface 63b.

[0157] The periphery of the steam cover sealing member 34 abuts against the edge of the steam passage hole 32. The steam cover sealing member 34 can seal the gap between the steam cover 33 and the cover plate 14, so as to prevent steam from entering the cover body through the gap. Further, the steam cover 33 has a downwardly recessed accommodating portion 62, and the steam cover sealing member 34 is located in the accommodating portion 62, so that the installation position of the steam cover sealing member 34 is determined, and the sealing effect is ensured. By means of the steam cover sealing member 34, steam can be prevented from entering the cover body from between the cover plate 14 and the steam passage 217, so as to avoid the safety hazard caused by the electrical components in the cover plate 14 being wetted, improve the sealing effect of the assembly, and improve the use safety of the product. As known from the foregoing, the steam cover 33 is provided with a fixing column 61 connected to the steam passage 217. In the illustrated embodiment, the fixing column 61 has a first fixing column 61a and a second fixing column 61b. Correspondingly, in order to adapt to the installation of the steam cover 33, the steam cover sealing member 34 is provided with a positioning hole 65, and the fixing column 61 passes through the positioning hole 65 to position the steam cover sealing member 34.

[0158] As shown in Figure 12 , Figure 16 and Figure 17 , one of the outer periphery of the channel bottom shell 205 and the outer periphery of the channel top plate 206 is provided with a limiting groove 227, and the other of the outer periphery of the channel bottom shell 205 and the outer periphery of the channel top plate 206 is provided with an outer peripheral wall 209. The cooking steam passage sealing member 207 is at least partially located in the limiting groove 227 and is abutted by the outer peripheral wall 209. For example, the outer periphery of the channel top plate 206 is provided with a limiting groove 227 with a downwardly opening notch, and the outer periphery of the channel bottom shell 205 is provided with an upwardly extending outer peripheral wall 209. The outer peripheral wall 209 can extend into the limiting groove 227 and press the part of the cooking steam passage sealing member 207 located in the groove. By providing the limiting groove 227, the cooking steam passage sealing member 207 can be better fixed, so as to avoid falling off and ensure that the cooking steam passage sealing member 207 will not be displaced due to its own deformation when the channel top plate 206 is covered to the channel bottom shell 205, and the sealing effect is ensured.

[0159] In some examples, the cooking steam passage seal 207 includes a first sealing portion 231 and a second sealing portion 232. The first sealing portion 231 can be located in the limiting groove 227 and abutted by the peripheral wall 209. The second sealing portion 232 is provided with a fixing groove 233, the groove opening of the fixing groove 233 faces the side where the limiting groove 227 is located, and in a specific example, the groove opening of the fixing groove 233 faces upward. The groove wall 228 of the limiting groove 227 is clamped into the fixing groove 233. A part of the cooking steam passage seal 207 is clamped in the limiting groove 227, and the other part is hung on the groove wall 228 of the limiting groove 227, thereby effectively preventing the cooking steam passage seal 207 from falling off and making the assembly more firm and reliable. The second sealing portion 232 is located on the side of the first sealing portion 231 close to the center of the steam passage assembly. When the steam passage assembly 200 is assembled, the second sealing portion 232 is not easy to touch on the inner side of the one of the passage bottom shell 205 and the passage top plate 206, so that the cooking steam passage seal 207 is stably fixed; after assembly, the second sealing portion 232 is hidden inside the cooking steam exhaust passage P12, and the external structure of the steam passage assembly 200 is steam, and the visual effect is better.

[0160] In some alternative examples, the cooking steam passage seal 207 is entirely limited in the limiting groove 227, and in this example, the cooking steam passage seal 207 is selected as an O-shaped sealing ring, for example.

[0161] The cooking steam passage seal 207 is configured to be annular and correspond to the shape of the outer contour of the steam passage assembly. The cooking steam passage seal 207 has good sealing effect and can be in place after one assembly.

[0162] 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. As used herein, the term "set" can mean either a component is directly attached to another component or a component is attached to another component via an intermediate component. The features described in one embodiment can be applied to another embodiment, either individually or in combination with other features, unless such features are not applicable or are otherwise stated.

[0163] 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 are not intended to limit the application to the described embodiments. Those skilled in the art can understand that more variations and modifications can be made according to the teachings of the application, and these variations and modifications all fall within the scope of the application claimed.

Claims

1. A steam channel assembly for a cooking appliance, characterized by, The steam channel assembly comprises: a channel top plate; a channel bottom shell connected with the channel top plate and forming a cooking steam supply channel and a cooking steam exhaust channel therebetween, wherein the cooking steam supply channel is located inside the cooking steam exhaust channel; and a cooking steam channel sealing member arranged between the outer periphery of the channel bottom shell and the channel top plate to form a closed cooking steam exhaust channel.

2. The vapor chimney assembly of claim 1, wherein, One of the outer periphery of the channel bottom shell and the outer periphery of the channel top plate is provided with a limiting groove, and the other is provided with an outer peripheral wall, and the cooking steam channel sealing member is at least partially located in the limiting groove and is in abutment with the outer peripheral wall.

3. The vapor chimney assembly of claim 2, wherein, The cooking steam channel sealing member comprises a first sealing portion and a second sealing portion, the first sealing portion is located in the limiting groove, and the second sealing portion is provided with a fixing groove, the groove opening of the fixing groove faces the side where the limiting groove is located, and the groove wall of the limiting groove is clamped into the fixing groove.

4. The vapor chimney assembly of claim 3, wherein, The second sealing portion is located on one side of the first sealing portion close to the center of the steam channel assembly.

5. The vapor chimney assembly of claim 1, wherein, The cooking steam channel sealing member is annular and corresponds to the shape of the outer contour of the steam channel assembly.

6. The vapor chimney assembly of claim 1, wherein, The channel top plate is connected to the channel bottom shell through a buckle structure arranged on the outer periphery of both the channel bottom shell and the channel top plate, so that the channel bottom shell, the channel top plate and the cooking steam channel sealing member form a close combination.

7. The vapor chimney assembly of claim 1, wherein, One end of the channel bottom shell is provided with a steam passing portion protruding downward, and the steam passing portion has an import and export concentrated distribution area, and the cooking steam outlet of the cooking steam supply channel and the cooking steam import of the cooking steam exhaust channel are arranged in the import and export concentrated distribution area.

8. The vapor chimney assembly of claim 1, wherein, One end of the channel bottom shell is provided with the cooking steam outlet of the cooking steam supply channel, and the other end is provided with the cooking steam import of the cooking steam supply channel.

9. The vapor chimney assembly of claim 1, wherein, The cooking steam outlet of the cooking steam exhaust channel is arranged on the channel top plate and at least partially located in a region corresponding to the position of the cooking steam import of the cooking steam exhaust channel.

10. The vapor passage assembly of any of claims 1-9, wherein, The steam channel assembly further comprises a cooking steam channel member arranged in the channel bottom shell, and the cooking steam channel member constitutes at least a part of the cooking steam supply channel.

11. The vapor passage assembly of claim 10, wherein, The cooking steam channel member is composed of a groove-shaped member, and the circumferential wall of the groove-shaped cooking steam channel member is in abutment with the channel top plate to form the cooking steam supply channel.

12. The vapor passage assembly of claim 11, wherein, The cooking steam channel member is made of elastic sealing material, so that the cooking steam channel member is in sealing abutment with the channel top plate.

13. The vapor chimney assembly of claim 11, wherein, The steam channel assembly further comprises a pressing plate arranged in the groove of the cooking steam channel member and connected with the channel bottom shell, and the pressing plate, the circumferential wall of the cooking steam channel member and the channel top plate form the cooking steam supply channel.

14. The vapor chimney assembly of claim 10, wherein, The cooking steam channel member is composed of a tubular member, so as to independently form the cooking steam supply channel.

15. A removable lid assembly for a cooking appliance, the removable lid assembly comprising: The detachable cover assembly comprises: A cover plate; A cover plate seat connected with the outer periphery of the cover plate; The steam passage assembly according to any one of claims 1 to 14 is arranged on the same side of the cover plate and the cover plate seat.

16. The detachable lid assembly of claim 15, wherein, The detachable cover assembly further comprises a steam passing cover arranged on the other side of the cover plate, the cover plate is provided with a steam passing hole, and the steam passing cover is connected with the steam passing part of the steam passage assembly at the steam passing hole.

17. The detachable lid assembly of claim 16, wherein, The steam passing cover covers the steam passing part from the lower side, and the steam passing cover is provided with a corresponding interface corresponding to the cooking steam outlet of the cooking steam supply passage and the cooking steam inlet of the cooking steam discharge passage, respectively.

18. The detachable lid assembly of claim 16, wherein, The steam passing cover is connected with the steam passing part through fasteners, and the periphery of the steam passing cover is larger than the steam passing hole.

19. The detachable lid assembly of any one of claims 15 to 18, wherein, The steam passage assembly is inclined relative to the longitudinal center line of the detachable cover assembly, the front end of the steam passage assembly is arranged at the rear end of the cover plate, and the rear end of the steam passage assembly is arranged at the rear end corner of the cover plate seat.

20. A cover for a cooking appliance, the cooking appliance comprising the cover and a pot body, the cover being openably disposed on the pot body to form a cooking cavity between the cover and the pot body, characterized in that, The bottom side of the cover body is fixedly connected with a cover plate and comprises the steam passage assembly according to any one of claims 1 to 14.

21. A cover for a cooking appliance, the cooking appliance comprising the cover and a pot body, the cover being openably disposed on the pot body to form a cooking cavity between the cover and the pot body, characterized in that, The bottom side of the cover body is detachably connected with the detachable cover assembly according to any one of claims 15 to 19.

22. The cover of claim 20 or 21, wherein, The cover body further comprises a top heating device, and the steam passage assembly is arranged in parallel with the top heating device in the horizontal direction.

23. The cover body according to claim 22, wherein, The top heating device comprises a radiation plate and a heating assembly for heating the radiation plate, the radiation plate radiates infrared rays to the cooking cavity after being heated, and the heating assembly is arranged on the upper side of the radiation plate; or The top heating device comprises an infrared heating pipe and a light-transmissive isolation plate arranged on the lower side of the infrared heating pipe.

24. A cooking appliance characterized by, The cooking appliance comprises a pot body, a steam generating device, and the cover body according to any one of claims 20 to 23, the cover body is arranged in a openable and closable manner on the pot body to form a cooking cavity between the cover body and the pot body, the steam generating device is arranged on the cover body or the pot body to generate cooking steam, so that the cooking steam in the cooking cavity is discharged through the steam passage assembly, and the cooking steam is supplied into the cooking cavity through the steam passage assembly.

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