Detachable cover assembly, cover body and cooking utensil

Abstract

The utility model discloses a detachable cover assembly, a cover body and a cooking utensil, the cover body comprises a cover plate and a steam channel assembly, a complementary cooking steam supply channel and a cooking steam discharge channel are formed in the steam channel assembly, and the complementary cooking steam supply channel and the cooking steam discharge channel are used for allowing complementary cooking steam of a cooking cavity to pass through and allowing steam discharged from the cooking cavity to pass through respectively; the cover plate at least forms a part of the top face of the cooking cavity, an inlet and outlet concentrated distribution area is arranged at the part forming the top face, and a complementary cooking steam outlet of the complementary cooking steam supply channel and a cooking steam inlet of the cooking steam exhaust channel are both located in the inlet and outlet concentrated distribution area. According to the utility model, the complementary cooking steam outlet and the cooking steam inlet are ingeniously and intensively designed in a relatively small area, and a sealing piece and a sealing structure do not need to be respectively arranged at the two openings, so that the manufacturing and assembling procedures are simplified, and meanwhile, the structure is simpler.

Description

TECHNICAL FIELD

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

[0002] The existing steam cooking utensils such as steam rice cookers, etc. generally have two independent steam channels in the cover body. One steam channel is used for steam inlet to transport steam from a steam source to a cooking cavity. The other steam channel is used for steam outlet to exhaust steam in a steam space to the outside environment. Generally, steam generated by the steam source is introduced into the steam channel from the rear part of the cover body, and then enters the cooking cavity from the middle part of the cover body.

[0003] The cover body is provided with an inlet in the rear area for communication with the steam source, and is provided with an entrance in the area facing the inner pot for communication with the cooking cavity. The entrance is generally arranged in the middle of the area. In order to communicate the inlet and the entrance, the steam channel needs to extend from the rear area of the cover body to the middle of the area facing the inner pot of the cover body. This results in the length of the steam channel being too long, and the steam flow is large in loss.

[0004] Therefore, there is a need for a detachable cover assembly, a cover body and a cooking utensil to at least partially solve the above problems. SUMMARY

[0005] A series of simplified concepts are introduced in the summary part of the utility model, which will be further described in detail in the specific embodiment part. The summary part of the utility model 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 detachable cover assembly for a cooking utensil, the cooking utensil comprising a cover body and a pot body, the cover body being openably and closably arranged on the pot body to form a cooking cavity between the cover body and the pot body. The detachable cover assembly comprises a cover plate, and further comprises a steam channel assembly, the steam channel assembly being formed with:

[0007] a cooking steam supply channel for supplying steam for cooking in the cooking cavity; and

[0008] a cooking steam exhaust channel for exhausting steam from the cooking cavity;

[0009] wherein the cover plate at least constitutes part of a top surface of the cooking cavity, and is provided with an entrance and exit concentrated distribution area at the part constituting the top surface, the cooking steam outlet of the cooking steam supply channel and the cooking steam inlet of the cooking steam exhaust channel are both located in the entrance and exit concentrated distribution area.

[0010] According to the present scheme, the steam outlet for the re-cooking and the steam inlet for the cooking are ingeniously designed in a relatively small area, and it is not necessary to separately arrange a sealing member and a sealing structure at the two ports, thus simplifying the manufacturing and assembling procedures and making the structure more simple. Moreover, a single part made of a desired material can meet the requirements of the structure and material performance of the concentrated distribution area of the inlet and outlet. Furthermore, in order to make the design structure of the cover plate simple, the steam outlet for the re-cooking and the steam inlet for the cooking can be formed in a small area of the cover plate by the same means. When the cover body is in the open state, a user observes the two steam ports in a relatively small area on the inside of the cover plate. Compared with the two steam ports dispersed in different areas, the present application makes the user's visual perception better and the integrity of the appearance of the inside of the product better.

[0011] Optionally, the part of the re-cooking steam supply channel adjacent to the re-cooking steam outlet and the part of the cooking steam discharge channel adjacent to the cooking steam inlet are arranged in a spatially adjacent manner or have a containing relationship in terms of space occupation. According to the present scheme, the arrangement and spatial distribution of the re-cooking steam supply channel and the cooking steam discharge channel can be designed according to the internal structure of the cover body, for example, independent of each other or containing each other, as well as the position of the outlet of the cooking steam discharge channel.

[0012] Optionally, the re-cooking steam supply channel is arranged inside the cooking steam discharge channel, and the cooking steam inlet is arranged adjacent to the re-cooking steam outlet. According to the present scheme, the re-cooking steam supply channel can maintain a higher temperature, and the steam entering the cooking cavity for re-cooking loses less heat when passing through the re-cooking steam supply channel, so that the temperature of the re-cooking steam is higher and the re-cooking effect is better. The steam entering the cooking cavity for re-cooking does not condense and liquefy when transmitting in the re-cooking steam supply channel, so that the water droplets mixed in the re-cooking steam do not affect the re-cooking effect. The sealing of the two steam channels can be implemented by an inner and outer double sealing manner to form an excellent sealing effect and reduce the flow loss of the re-cooking steam in the transmission process.

[0013] Optionally, the steam channel assembly is arranged adjacent to the rear end of the detachable cover assembly. According to the present scheme, the area adjacent to the rear end of the detachable cover assembly can be used to layout the steam channel assembly, and the re-cooking steam supply channel is contained inside the cooking steam discharge channel, so that the steam channel 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 channel assembly is relatively large, so that this area can be designed diversely.

[0014] Optionally, the area of the cover plate adjacent to the rear end portion is provided with an import and export concentrated distribution area and / or is connected with a steam cover, and the cover plate is provided with openings corresponding to the cooking steam import and the cooking steam export on the part of the import and export concentrated distribution area or the steam cover. According to the scheme, the cooking steam supply channel extends from the rear portion of the cover plate and extends towards the rear portion of the cover body, shortening the extension path of the cooking steam supply channel and facilitating the miniaturization of the cover body. The steam 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 according to the functions to be performed and the effects to be achieved, and the surface of the cover plate is required to be made of food-grade stainless steel as the top surface of the cooking cavity. In addition, the surface is also the visible surface after the cooking utensil is opened, and the through holes of the cooking steam and the cooking steam are designed in the relatively small area of the visible surface, which can improve the user's visual experience in the structural design.

[0015] Optionally, the detachable cover assembly further comprises a cover plate seat connected with the cover plate and a pot opening sealing ring arranged on the cover plate seat, and the cover plate is provided with a through hole for infrared rays to pass through in the cooking area defined by the pot opening sealing ring, and the area of the through hole is greater than 3 / 5 of the area of the cooking area. The steam channel assembly is arranged at the area outside the through hole. According to the scheme, the infrared rays of the infrared heating device in the cover body can radiate to the food through the through hole, and the large-area through hole can make more infrared rays pass through, improving the infrared heating efficiency.

[0016] Optionally, the through hole is adjacent to the front end portion of the detachable cover assembly. According to the scheme, the through hole and the steam channel assembly can be arranged front and back, with the through hole in front and the steam channel assembly behind, so that the through hole can be designed to occupy a larger cooking area.

[0017] Optionally, the cover plate is provided with a through hole sealing ring fixed on the periphery of the through hole and located on the side opposite to the side where the pot opening sealing ring is located. According to the scheme, the steam can be prevented from entering the inside of the cover body from the through hole of the cover plate, thereby improving the sealing effect of the cover body.

[0018] Optionally, the detachable cover assembly comprises a cover plate seat connected with the cover plate, and the steam channel assembly is arranged across the cover plate and the cover plate seat. According to the scheme, the rear portion of the detachable cover assembly outside the cooking area can be better utilized to arrange the steam channel with a longer extension path, reducing the area ratio of the steam channel assembly on the cover plate.

[0019] Optionally, a cooking steam docking cover is arranged at the import of the cooking steam supply channel, and the cooking steam docking cover is connected with or integrally arranged at the area of the cover plate seat adjacent to the rear end portion. According to the scheme, the opening and closing of the steam generating device of the pot body is realized by the opening and closing of the cover body, reducing the operation steps of the user and improving the operation experience of the user.

[0020] Optionally, the steam passage assembly comprises a passage bottom shell and a passage top plate, the passage bottom shell and the passage top plate are connected and form the cooking steam supply passage and the cooking steam exhaust passage between the two. According to the scheme, two independent members that can be covered up and down are used as the basic members of the steam passage, a part of the steam passage is formed by the passage bottom shell or the components thereon, and the other part is formed by the passage top plate, and the production and manufacturing of the steam passage assembly are easier.

[0021] Optionally, the passage bottom shell is provided with a steam passing part, the cover plate is provided with a steam passing part passing hole, and the steam passing part and the steam passing part passing hole are combined. According to the scheme, the steam passing part can be clamped in the steam passing part passing hole, and the position of the steam passing part in the horizontal direction is positioned, so that the assembly of the steam passage assembly is firm and reliable.

[0022] Optionally, the steam passing part is a flange-shaped protruding part that extends into or through the steam passing part passing hole. According to the scheme, the flange surface can abut against the edge of the steam passing part passing hole, and the protruding part can be limited in the steam passing part passing hole, and this assembly structure enables the steam passing part to be stably retained on the cover plate.

[0023] Optionally, the inlet and outlet concentrated distribution area is arranged on the steam passing part. According to the scheme, the steam passing part is concentratedly provided with the cooking steam outlet and the cooking steam inlet, and the cooking steam and the cooking steam can pass through the steam passing part.

[0024] Optionally, the detachable cover assembly comprises a steam passing cover, the steam passing cover is welded, threadedly connected or connected through a fastener with the steam passing part, and the peripheral edge of the steam passing cover is larger than the steam passing part passing hole. According to the scheme, the steam passing cover can limit the steam passing part from coming out of the steam passing part passing hole, and the connection between the steam passing cover and the passage bottom shell is more and the connection area is larger, so the two can be more firmly and reliably connected, thereby firmly and reliably connecting the passage bottom shell to the cover plate; furthermore, the contact area between the steam passing cover and the cover plate is larger, and the pressure of the steam passing cover on the cover plate is more dispersed in the process of installation, so that local deformation of the cover plate can be effectively avoided.

[0025] Optionally, a sealing element is arranged between one of the steam passing cover and the steam passing part and the edge of the steam passing part passing hole. According to the scheme, the sealing element can seal the gap between the steam passing cover or the steam passing part and the edge of the steam passing part passing hole, prevent the steam from leaking from between the cover plate and the steam passing part to the inside of the cover body, thereby avoiding the safety hazard caused by the dampening of the electrical devices in the cover body, improving the sealing effect of the assembly and the use safety of the product while ensuring the reliability of the assembly.

[0026] According to another aspect of the present application, a cover body is provided for a cooking appliance, the cooking appliance comprising the cover body and a pot body, the cover body being arranged to be openably and closably arranged on the pot body to form a cooking cavity between the cover body and the pot body, the bottom side of the cover body being fixedly connected with a cover plate and further comprising a steam passage assembly, the steam passage assembly being formed with:

[0027] a cooking steam supply passage for supplying steam for cooking to the cooking cavity; and

[0028] a cooking steam discharge passage for discharging steam from the cooking cavity;

[0029] The lower bottom surface of the cover body constitutes at least a part of the top surface of the cooking cavity, and the cooking steam supply passage and the cooking steam discharge passage are both located in the import and export concentrated distribution area.

[0030] According to the present application, the structure of the import and export concentrated distribution area is suitable for the cover body fixedly connected with the cover plate, and the cover body can also obtain the above technical effects brought by the import and export concentrated distribution area.

[0031] According to another aspect of the present application, a cover body for a cooking appliance is provided, the cooking appliance comprising the cover body and a pot body, the cover body being openably and closably arranged on the pot body to form a cooking cavity between the cover body and the pot body, and the bottom side of the cover body detachably connected with the detachable cover assembly of any one of the above aspects. According to the present application, the structure of the import and export concentrated distribution area is suitable for the cover body detachably connected with the detachable cover assembly, and the cover body can also obtain the above technical effects brought by the import and export concentrated distribution area.

[0032] Optionally, the cover body comprises an opening mechanism, and the import and export concentrated distribution area is arranged at the rear of the cover plate away from the opening mechanism. According to the present application, the cooking steam supply passage extends from the rear of the cover plate and towards the rear of the cover body, shortening the extension path of the cooking steam supply passage and being beneficial to the miniaturization of the cover body.

[0033] Optionally, the import and export concentrated distribution area is arranged on the longitudinal center line of the cover plate. According to the present application, on the one hand, the steam entering through the cooking steam outlet can be diffused from the middle to the left and right sides in the transverse direction, and the diffusion of the steam is more uniform, which is beneficial to more effectively wetting a large area of food. On the other hand, the overall appearance of the inside of the cover body is better.

[0034] Optionally, the import and export concentrated distribution area has an axisymmetric shape, and the center of the import and export concentrated distribution area is on the longitudinal center line of the cover plate. According to the present application, the structure design can be improved from the shape of the area, so that the structure adapted to the shape of the area can have a simple structure, and the overall appearance of the inside of the cover body is improved.

[0035] Optionally, the area defined by the cooking steam outlet has a first center, the area defined by the cooking steam inlet has a second center, and the first center and the second center are respectively located on two sides of the longitudinal center line of the cover plate. According to the scheme, the cooking steam outlet mainly occupies the area of the concentrated distribution area on one side of the longitudinal center line, and the cooking steam inlet mainly occupies the area of the concentrated distribution area on the other side of the longitudinal center line. The cooking steam outlet and the cooking steam inlet each have a certain arrangement space in the transverse direction, which facilitates the design of the channel structure of the cooking steam supply channel and the cooking steam exhaust channel.

[0036] Optionally, the first center has a first distance d1 to the longitudinal center line, and the second center has a second distance d2 to the longitudinal center line, and d1 = d2. According to the scheme, in the design, the size and shape of the cooking steam outlet and the cooking steam inlet are designed based on the area centers of the cooking steam outlet and the cooking steam inlet respectively, and the distances of the area centers to the longitudinal center line are equal, which facilitates the structural design and improves the overall appearance of the inner side of the cover body.

[0037] Optionally, the first center and the second center are on a transverse reference line. According to the scheme, the structural design is easier, and the overall appearance of the inner side of the cover body can be improved.

[0038] Optionally, the shape of at least the concentrated distribution area of the inlet and outlet corresponds to the shape of the outer contour of the cover plate. According to the scheme, the structural design can be improved from the area shape, so that the overall structural design of the cover body has consistency and simple structure, and the overall appearance of the inner side of the cover body is improved.

[0039] Optionally, the cooking steam outlet and the cooking steam inlet are respectively located on two sides of the longitudinal center line of the cover plate. According to the scheme, the cooking steam outlet occupies the area of the concentrated distribution area on one side of the longitudinal center line, and the cooking steam inlet occupies the area of the concentrated distribution area on the other side of the longitudinal center line. The cooking steam outlet and the cooking steam inlet each have a certain arrangement space in the transverse direction, which facilitates the design of the channel structure of the cooking steam supply channel and the cooking steam exhaust channel.

[0040] Optionally, the steam channel assembly comprises a channel bottom shell, the channel bottom shell is located on the upper side of the cover plate, the channel bottom shell comprises a steam passing portion protruding downward, the supplementary cooking steam outlet and the cooking steam inlet are arranged on the steam passing portion, the cover plate is provided with a steam passing portion passing hole for the steam passing portion to pass through, and the steam passing portion is arranged in the steam passing portion passing hole. According to the scheme, the channel bottom shell is closer to the cover plate at the steam passing portion protruding downward, and the steam passing portion is limited in the through hole of the cover plate, which can make the steam passing port on the steam passing portion communicate with the cooking cavity, and on the other hand, the cover plate limits the horizontal position of the channel bottom shell at the steam passing portion, avoiding the horizontal movement of the channel bottom shell relative to the cover plate.

[0041] Optionally, the steam channel assembly comprises a channel bottom shell, the channel bottom shell is provided with a steam receiving port for receiving steam from the steam generating device in the pot body, the channel bottom shell exceeds the rear portion of the cover plate in the longitudinal direction and the transverse direction on the horizontal plane, the steam receiving port is located at the side end portion of the channel bottom shell in the transverse direction, and the side end portion corresponds to the corner portion of the cover body. According to the scheme, the position of the steam receiving port is correspondingly arranged above and below the steam generating device in the pot body, and the steam enters the steam receiving port from the bottom to the top, so that the steam path between the steam receiving port and the steam generating device is short and straight.

[0042] Optionally, the steam channel assembly comprises a channel bottom shell and a channel top plate, the channel bottom shell is located on the lower side of the channel top plate and forms the supplementary cooking steam supply channel and the cooking steam discharge channel with the channel top plate. According to the scheme, the supplementary cooking steam supply channel and the cooking steam discharge channel are formed by one assembly, which is simple in structure and has higher space utilization in the cover body. Two independent members that can be covered up and down are used as the basic members of the steam channel, a part of the steam channel is formed by the channel bottom shell or the components thereon, and the other part is formed by the channel top plate, so that the production and manufacturing of the steam channel assembly are easier.

[0043] Optionally, the channel top plate is provided with a cooking steam outlet for discharging steam in the cooking steam discharge channel. According to the scheme, the cooking steam outlet on the channel top plate is closer to the cover body, so that the cooking steam outlet can more easily communicate with the steam discharge channel of the cover body.

[0044] Optionally, the channel top plate or the channel top plate is provided with a steam receiving port for receiving steam from the steam generating device. According to the scheme, the steam receiving port on the channel top plate is suitable for steam entering from the upper side, and the steam receiving port on the channel bottom shell is suitable for steam entering from the lower side, so that the structure of the steam channel assembly of the present application is not limited by the position of the steam generating device. The cooking steam assembly has a requirement for the installation direction, and when installed, the lower side of the channel bottom shell needs to face the cooking cavity, and the reverse side constitutes the member supporting the cooking steam channel and the supplementary cooking steam channel.

[0045] Optionally, the channel top plate is detachably connected with the channel bottom shell. According to the scheme, when the steam channel needs to be cleaned, the channel top plate can be detached from the channel bottom shell, so that the inside of the steam channel is exposed for cleaning by the user with water, and the channel top plate detached from the cover body can be cleaned by the user with water.

[0046] Alternatively, the cover body comprises a cover main body, and the channel top plate is integrally designed with the cover main body or detachably connected with the cover main body. According to the scheme, in the integrally designed scheme, a part of the cover main body abuts against the channel bottom shell to form two steam channels, thereby saving a component and simplifying the structure and assembly of the cover body; in the detachable scheme, the channel top plate can be detached from the cover body together with the channel bottom shell for cleaning by the user.

[0047] According to another aspect of the present application, a cooking appliance is provided, which comprises a cover body, a pot body and a steam generating device according to the above. The cover body is openably arranged 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 steam supply channel. According to the scheme, the cooking appliance can have the function of supplying cooking steam to the cooking cavity, wherein the cooking steam inlet and the cooking steam outlet in the cover body are located in the inlet and outlet concentrated distribution area, so that the cooking appliance can obtain the above technical effects brought by the inlet and outlet concentrated distribution area.

[0048] Optionally, the steam generating device has a top opening, and the cooking steam docking cover on the cover body is arranged on the top opening when the cover body is closed on the pot body. According to the scheme, the cooking steam docking cover can close the top opening of the steam generating device to prevent the cooking steam from leaking to the outside; the opening and closing of the cooking steam docking cover on the steam generating device of the pot body is realized by the opening and closing of the cover body, which reduces the operation steps of the user and improves the operation experience of the user. BRIEF DESCRIPTION OF DRAWINGS

[0049] The following drawings of the present application are hereby incorporated into the present application as part of the present application for the purpose of understanding the present application. The embodiments of the present application and their description shown in the drawings are used to explain the principles of the present application.

[0050] In the drawings:

[0051] Figure 1 is a perspective view of a cooking appliance according to the present application, wherein the cover body is in a closed state;

[0052] Figure 2 is Figure 1 is another perspective view of the cooking appliance shown in FIG. 1, wherein the cover body is in an open state;

[0053] Figure 3 is Figure 1 is a perspective exploded view of the cooking appliance shown in FIG. 1;

[0054] Figure 4 for Figure 1 A cross-sectional view of the cooking appliance shown, wherein the tangent of the section is parallel to the line connecting the center line extending in the front-back direction of the lid and the center line of the supplementary steam supply channel.

[0055] Figure 5 for Figure 1 Another sectional view of the cooking appliance shown, wherein the tangent of the section is parallel to the center line extending in the front-back direction of the lid;

[0056] Figure 6 for Figure 5 Enlarged view of section A;

[0057] Figure 7 for Figure 5 An exploded perspective view of the top heating element and lining shown.

[0058] Figure 8 for Figure 5 A perspective view of the top heating device and the main body of the cover shown;

[0059] Figure 9 for Figure 5 An exploded perspective view of the steam passage assembly and the removable cover assembly shown.

[0060] Figure 10 for Figure 5 A perspective view of the steam passage assembly and the removable cover assembly shown;

[0061] Figure 11 for Figure 5 A bottom view of the steam passage assembly and the removable cover assembly shown;

[0062] Figure 12 for Figure 5 Cross-sectional view of the steam passage assembly and the removable cover assembly shown;

[0063] Figure 13 for Figure 5 The top view of the steam passage assembly and removable cover assembly shown has the passage top plate removed;

[0064] Figure 14 for Figure 5 Another exploded perspective view of the steam passage assembly and the removable cover assembly shown;

[0065] Figure 15 for Figure 5 The image shows a bottom view of the steam passage assembly and the removable cover assembly, with dimensions indicated.

[0066] Explanation of reference numerals in the attached figures:

[0067] 1. Cooking utensils 2. Pot body

[0068] 3 lid 4 inner pot

[0069] 5 inner pot heating device 6 pivot shaft

[0070] 7 pot opening sealing ring 8 lid main body

[0071] 9 inner liner 10 face cover assembly

[0072] 11 user interaction area 12 torsion spring

[0073] 13 detachable cover assembly 14 cover plate

[0074] 15 cover plate seat 16 outer shell

[0075] 17 middle plate 18 base

[0076] 20 inner liner through hole 21 cover plate through hole

[0077] 22 support portion 23 through hole sealing ring

[0078] 24 pressing ring 25 protruding portion

[0079] 26 recessed portion 27 steam valve

[0080] 28 steam sealing element 29 seat support portion

[0081] 30 cooking steam docking cover 31 cooking steam docking sealing element

[0082] 32 steam passing portion passing hole 33 steam passing cover

[0083] 34 steam passing area sealing element 35 cooking steam inlet

[0084] 36b rear end portion 37 cylindrical wall

[0085] 40 steam generating device 41 water container

[0086] 42 water container heating device 50 temperature measuring device

[0087] 51 temperature measuring element

[0088] 100 top heating device 110 radiation plate

[0089] 111 avoidance notch 120 heating assembly

[0090] 130 peripheral portion sealing ring 140 fixing element

[0091] 200 steam passage assembly 201 steam inlet

[0092] 202 cooking steam outlet 203 cooking steam inlet

[0093] 204 cooking steam outlet 205 channel bottom shell

[0094] 206 channel top plate 207 cooking steam channel seal

[0095] 208 complementary cooking steam channel member 209 channel wall

[0096] 210 side end 211 / 36a front end

[0097] 212 fixed clasp 213 movable clasp

[0098] 214 bayonet 215 first protrusion

[0099] 216 second protrusion 217 steam passage

[0100] 218 steam passage opening 219 temperature measuring hole

[0101] CL longitudinal center line RL lateral reference line

[0102] R import / export concentrated distribution area C1 first center

[0103] C2 second center C3 center of cover plate DETAILED DESCRIPTION

[0104] In the following description, numerous specific details are set forth to provide a more 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 order to avoid obscuring the present application.

[0105] For a thorough understanding of the present application, reference is made to the following description taken in conjunction with the accompanying drawings. It is apparent that the application can be practiced without specific details, which are well known to a person of ordinary skill in the art. The preferred embodiments of the present application are described in detail below.

[0106] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. 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.

[0107] 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,” “back,” “left,” “right,” “inner,” “outer,” and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0108] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0109] like Figures 1 to 5 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.

[0110] 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.

[0111] It should be noted that the directional terms used herein in describing various components, parts, etc. of the cooking appliance 1, such as "upper", "lower", "upper side", "lower side", "upward", "downward", "upwardly", "downwardly", etc. are relative to the cooking appliance 1 in a horizontal placement, upright state and with the lid body 3 in a closed state.

[0112] The lid body 3 basically comprises a lid main body 8. The lid 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, adhesion, 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 lid. The pot body 2 further comprises an opening button, and an opening mechanism is arranged in the lid body 3. By pressing the opening button, the opening mechanism is unlocked. One end of the lid body 3 provided with the opening mechanism or adjacent to the opening button is the front end, and the opposite end of the front end is the rear end. Generally, the rear end of the lid body 2 is adjacent to the pivot shaft 6 of the lid body 2 and the pot body 2.

[0113] In one example, the lid body 3 further comprises a detachable lid assembly 13. The detachable lid assembly 13 is arranged on the lower side of the lid main body 8 and is detachably connected to the lid main body 8 in the form of an assembly, so that the detachable lid assembly 13 is detachably mounted on the lid body 3 from the lower side. When the detachable lid assembly 13 needs to be cleaned, the detachable lid assembly 13 can be detached from the lid body 3. Specifically, the detachable lid 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 lid assembly 13 is movably connected to the inner liner 9 by a plug-in and / or clamping structure. The detachable lid assembly 13 basically comprises a cover plate 14, a cover plate seat 15 and the aforementioned 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 to 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.

[0114] In another alternative example, the lid body 3 comprises the aforementioned cover plate 14, which is fixedly connected to the lid main body 8, specifically to the inner liner 9, so that the cover plate 14 is non-detachably mounted on the lid body 3.

[0115] The pot body 2 basically comprises an outer shell 16, a middle plate 17 located on the upper side of the outer shell 16, and a base 18 located on the lower side of the outer shell 16. The lower end of the outer shell 16 can be connected to the outer periphery of the middle plate 17 by clamping, fastening with fasteners such as screws, bonding, or other suitable methods. The lower end of the outer shell 16 can be connected to the upper end of the base 18 by clamping, fastening with fasteners such as screws, bonding, or other suitable methods. The outer shell 16, the middle plate 17, and the base 18 together form an inner pot receiving portion. The inner pot heating device 5 can be arranged between the base 18 and the bottom of the inner pot 4 and connected to the base 18, so it is also called a bottom heating device. Alternatively, another inner pot heating device 5 can be arranged between the outer shell 16 and the side of the inner pot 4, so it is also called a side heating device.

[0116] 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 generates 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 other suitable electric heating device. The electromagnetic heating device comprises an electromagnetic coil and a coil disc. The electromagnetic coil is wound around the coil disc. In this scheme, the cover plate 14 on the lower side of the coil disc is a metal component. The alternating magnetic field generated by the electromagnetic coil can act on the metal cover plate 14 below, causing the cover plate 14 to heat itself to radiate heat to the cooking cavity. The illustrated example schematically 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.

[0117] The cooking appliance 1 of the present application also has the function of steam heating. 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 can be delivered to the cooking cavity during the holding stage to keep the food such as rice moist and prevent the food from drying out and turning yellow. Specifically, the cooking appliance 1 further comprises a steam generating device 40 for generating cooking steam to supplement 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 steam for cooking the cooking cavity, specifically, it can receive cooking steam from the steam generating device 40 and deliver cooking steam to the cooking cavity.

[0118] The steam generating device 40 can be arranged in the cover body 3 or the pot body 2. Figure 4 An example in which the steam generating device 40 is arranged in the pot body 2 is schematically shown. As shown in the figure, the steam generating device 40 is arranged in the base 18 of the pot body 2. Figure 4As shown, the steam generating device 40 basically comprises a water container 41 and a water container heating device 42. The water container 41 is arranged in the pot body 2 and is capable of storing water for generating the replenishment steam. Optionally, the water container 41 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 41 from the pot body 2. The water container 41 has a top opening for forming an outlet to allow the replenishment steam to overflow. The water container heating device 42 is usually arranged below the water container 41 and is used to heat the water in the water container 41 to generate the replenishment steam. The replenishment steam can enter the replenishment steam supply passage 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 41 and the water container heating device 42 are different from those of the example shown in the drawings. Figure 4

[0119] During cooking, the heating of the food and water in the inner pot 4 generates cooking steam. In order to exhaust the cooking steam to the external environment, the cooking utensil 1 is provided with a cooking steam exhaust passage P2 and a cooking steam exhaust passage P12 which is in communication with the cooking steam exhaust passage P2 and the cooking cavity. The cooking steam can first enter the cooking steam exhaust passage P12 and then be exhausted to the external environment through the cooking steam exhaust passage P2. Figure 5

[0120] For the infrared heating device, one example is that the infrared heating device can be an infrared electric heating tube. For example, the infrared electric heating tube is formed by encapsulating an infrared heating element in a glass tube. In this example, the cover body 3 further comprises a light-transmissive isolation plate arranged on the lower side of the infrared electric heating tube. Another alternative example is that the infrared heating device can be an electric heating film arranged on a plate-shaped member and capable of being electrified. In this example, the plate-shaped member for arranging the electric heating film is at least partially light-transmissive. Another alternative example is that, as shown in the example, the infrared heating device comprises a radiation plate 110 and a heating assembly 120 for heating the radiation plate 110. The heating assembly 120 generates heat which is transferred to the radiation plate 110. The radiation plate 110 can be heated to radiate infrared rays to the cooking cavity. The radiation plate 110 can be a ceramic plate, a carbon plate made of carbon material, etc. A light-transmissive isolation plate can be arranged on the lower side of the radiation plate 110. Alternatively, the radiation plate 110 is exposed in the cooking cavity, at least part of the lower surface of the radiation plate 110 forms the top surface of the cooking cavity, and further, at least part of the radiation plate 110 forms the top wall of the cooking cavity. The temperature of the radiation plate 110 can be controlled by controlling the power or heating temperature of the heating assembly 120.

[0121] The structure of the cover body 3 is further described by taking the example shown in the drawings as an example. As shown in the example, Figure 3 Figure 7 ​​​As shown, the inner liner 9 has an inner liner through-hole 20, and the radiating plate 110 is installed at the inner liner through-hole 20. The cover plate 14 is disposed below the radiating 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 radiating plate 110. In other words, the cover plate through-hole 21 is located directly below the radiating plate 110. The infrared rays generated by the radiating 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 is at least partially transparent. The cover plate 14 can be made entirely of a transparent material such as glass, or the portion corresponding to the radiating plate 110 can be made of a transparent material. In this case, the cover plate 14 serves as an isolation plate.

[0122] like Figure 6 and Figure 7 As shown, the inner liner 9 may be provided with a support portion 22. The support portion 22 is disposed around the through hole 20 of the inner liner, and the support portion 22 forms a closed annular structure. The outer edge of the radiant plate 110 can overlap 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 an upward supporting force to the radiant plate 110 and restrict the horizontal movement of the radiant plate 110, facilitating the fixation of the radiant plate 110. In one example, the support portion 22 can be recessed downward, and the radiant plate 110 is accommodated in the recessed support portion 22. In another example, the support portion 22 is a planar structure, i.e., it does not form a recess. A peripheral sealing ring 130 is fitted around the outer periphery of the radiant plate 110 to form a seal between the radiant plate 110 and the inner liner 9. The top heating device 100 also includes a fixing member 140. The fixing member 140 can be connected to the inner liner 9, and the outer edge of the radiant plate 110 is sandwiched between the fixing member 140 and the support portion 22. The fastener 140 may optionally be configured as a ring, which can be connected to the liner 9 by a suitable means such as snap-fit, fastener connection such as screws, welding, etc.

[0123] Additionally, the cover 3 may also include a through-hole sealing ring 23. The through-hole sealing ring 23 can be disposed around the periphery of the through-hole 21 of the cover plate and located on the side opposite to the side where the pot opening sealing ring 7 is located, specifically between the radiant plate 110 and the inner liner 9, abutting against the lower surface of the radiant plate 110. Forming a seal at the through-hole 21 of the cover plate prevents steam from entering the interior of the cover 3 through the gap between the radiant plate 110 and the cover plate 14, thereby improving the sealing effect of the cover 3. For example, a pressure ring 24 can be provided to clamp a portion of the through-hole sealing ring 23 between the pressure ring 24 and the cover plate 14, and the pressure ring 24 can be fixed to the cover plate 14 by a bendable clip.

[0124] The shape of the inner liner through hole 20, the shape of the cover plate through hole 21, the shape of the support portion 22, and the shape of the through hole sealing ring 23 correspond to the shape of the radiation plate 110. Exemplarily, the radiation plate 110 can be provided with an avoiding notch 111, and the inner liner 9 is provided with a protruding portion 25 protruding towards the center of the inner liner through hole 20, and the protruding portion 25 is engaged with the avoiding notch 111. A part of the steam passage P1 can be provided on the protruding portion 25. In this way, the area of the radiation plate 110 can be designed to be larger, and the steam passage P1 can also be arranged on one side of the radiation plate 110, specifically the rear side, with a suitable area ratio. Here, the steam passage P1 includes the above-mentioned cooking steam supply passage P11 and / or the cooking steam exhaust passage P12. Alternatively, the cover plate 14 can also be provided with a protruding portion 25, and the protruding portions 25 of the cover plate 14 and the inner liner 9 correspond in position.

[0125] In order to simplify the structure and optimize the use 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 exhaust passage P12, rather than using different components to form the two passages respectively. Specifically, the cover body 3 further includes a steam passage assembly 200 for forming the cooking steam supply passage P11 and the cooking steam exhaust 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, specifically on the rear side of the top heating device 100. As shown in Figure 8 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 recessed upward from the lower surface of the inner liner 9. At least part of the steam passage assembly 200 is accommodated in the recess 26. The size and shape of the recess 26 are adapted to the outer contour of the steam passage assembly 200.

[0126] As shown in Figure 9 , Figure 10 and Figure 11 The steam passage assembly 200 is further provided with a steam receiving port 201 communicating with the cooking steam supply passage P11 and a cooking steam outlet 202. The steam receiving port 201 is used to receive steam from the steam generating device 40, and the cooking steam outlet 202 is used to communicate the cooking steam supply passage P11 with the cooking cavity. The position of the steam receiving port 201 corresponds to the outlet of the water container 41, specifically above the water container 41. Figure 4 The steam flow path is schematically indicated by arrows. Specifically, the steam generated after the water in the water container 41 is heated enters the cooking steam supply passage P11 through the steam receiving port 201, flows along the cooking steam supply passage P11, and enters the cooking cavity through the cooking steam outlet 202.

[0127] 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 discharge passage P12. The cooking steam inlet 203 is configured to communicate the cooking steam discharge passage P12 with the cooking cavity, and the cooking steam outlet 204 is configured to discharge steam in the cooking steam discharge passage P12. The lid body 8 is provided with the steam discharge passage P2 as described above. The cooking steam outlet 204 is positioned corresponding to the steam discharge passage P2 of the lid body 8. The cover plate 14 further comprises a steam valve 27 and a steam seal 28 which form the steam discharge passage P2 and are vertically disposed in the lid body 8. The steam seal 28 is disposed in the upwardly protruding cylindrical wall 37 of the lid body 8 and abuts against the bottom of the steam valve 27 and the upper surface of the steam passage assembly 200. Figure 5 The steam flow path is schematically indicated by arrows, in particular, steam in the cooking cavity enters the cooking steam discharge passage P12 via the cooking steam inlet 203, flows along the cooking steam discharge passage P12, and flows to the steam discharge passage P2 via the cooking steam outlet 204, and then is discharged to the ambient environment.

[0128] The steam passage assembly 200 comprises a passage bottom shell 205 and a passage top plate 206. The passage bottom shell 205 is positioned below the passage top plate 206 and is coverable to the passage bottom shell 205. The steam seal 28 abuts against the 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, and the outer periphery of the passage bottom shell 205 and the passage top plate 206 is schematically shown as a substantially triangular shape in the drawings.

[0129] The passage bottom shell 205 is connected with the passage top plate 206 and forms the cooking steam discharge passage P12 and the steam supply passage P11 therebetween. Further, the two steam passages P1 are partly formed by the passage bottom shell 205 or components thereon, and partly formed by the passage top plate 206 or components thereon. The steam passage assembly 200 comprises two passage seals, i.e. a cooking steam passage seal and a steam supply passage seal 207, for forming seals at the cooking steam discharge passage P12 and the steam supply passage P11, respectively. In one example, the cooking steam discharge passage P12 and the steam supply passage P11 are provided at different regions of the passage bottom shell 205. In this example, the passage bottom shell 205 forms the bottom walls of the two steam passages P1, and the two passage seals are sandwiched at the passage walls at different positions, so that the passage bottom shell 205 and the passage top plate 206 enclose the two steam passages P1. Alternatively, the passage bottom shell 205 is provided with a pressing plate which is configured to form the bottom walls of the two steam passages P1; in this arrangement, the pressing plate can be configured to fix the passage seals which abut against the passage top plate 206. Thus, the pressing plate, the passage seals and the passage top plate 206 enclose the two steam passages P1.

[0130] Another example is shown in FIG. 6, in which the cooking steam supply passage P11 is arranged inside the cooking steam discharge passage P12. In this example, the passage bottom shell 205 forms the bottom wall of the cooking steam discharge passage P12, so that the passage bottom shell 205 and the passage top plate 206 enclose the cooking steam discharge passage P12. The steam passage assembly 200 further comprises a cooking steam passage member 208 arranged between the passage bottom shell 205 and the passage top plate 206 for forming the cooking steam supply passage P11. Figure 9

[0131] In the example described above in which the passage bottom shell 205 forms the bottom wall of the steam passage P1, the passage bottom shell 205 is provided with a passage wall 209 extending upwardly from the upper surface of the passage bottom shell 205, which encloses the peripheral side wall of the steam passage P1.

[0132] The cover plate 14 needs to be made of food-grade material as it forms the top wall of the cooking cavity. The passage bottom shell 205 and the passage top plate 206 are independent components and can be made of different materials from the cover plate 14. The components used to enclose the steam passage P1, such as the passage bottom shell 205, the passage top plate 206, the pressing plate and / or the cooking steam passage member 208, are also made of food-grade material. In this way, the top wall of the steam passage P1 can be formed without using the cover body 8, so that the cover body 8 does not need to be made of food-grade material, thereby saving material costs.

[0133] The steam passage assembly 200 is at least partially mounted on the detachable cover assembly 13, so that the steam passage assembly 200 is at least partially detached from the cover body 3 together with the detachable cover assembly 13 for cleaning the two steam passages P1 on the steam passage assembly 200. The cover plate through hole 21 is arranged adjacent to the front end portion 36a of the detachable cover assembly 13. The steam passage assembly 200 is arranged adjacent to the rear end portion of the detachable cover assembly 13. The cover plate through hole 21 and the steam passage assembly 200 can be arranged in front and back order, with the cover plate through hole 21 in front and the steam passage assembly 200 in back, so that the cover plate through hole 21 can be designed to occupy a larger cooking area. The cover plate 14 is defined with a cooking area by the pot opening sealing ring 7, and the cover plate through hole 21 is located within the cooking area and occupies an area greater than 3 / 5 of the area of the cooking area, for example, an area ratio of 8 / 10, 4 / 5, etc. The steam passage assembly 200 is arranged at a region outside the cover plate through hole 21.

[0134] ​For the illustrated example, at least the channel bottom shell 205 is mounted on the removable lid assembly 13, so that at least the channel bottom shell 205 is removed from the lid body 3 together with the removable lid assembly 13. In particular, the channel bottom shell 205 is connected with the removable lid assembly 13 to be removed from or mounted to the lid body 3 together with the removable lid assembly 13. Thus, at least the channel bottom shell 205 can be removed from the lid body 3 for cleaning the two steam channels PI. The channel top plate 206 can be separated from the channel bottom shell 205 to expose the interior of the steam channels PI for better cleaning of the interior of the steam channels PI.

[0135] For the illustrated example, the channel top plate 206 is detachably connected with the channel bottom shell 205 to be removed from or mounted to the lid body 3 together with the channel bottom shell 205. When cleaning of the steam channels PI is required, the whole of the steam channel assembly 200 and the removable lid assembly 13 can be removed from the lid body 3, and then the channel top plate 206 is detached from the channel bottom shell 205. This exposes part of the steam channels PI on the channel top plate 206 and part of the steam channels PI on the channel bottom shell 205, and the removable lid assembly 13 and the channel bottom shell 205 removed from the lid body 3 can be cleaned by the user with water, and the channel top plate 206 removed from the lid body 3 can be cleaned separately by the user with water. The user can easily achieve cleaning of the steam channels PI with good cleaning effect.

[0136] Alternatively, the channel top plate 206 is integrally designed with or detachably connected with the lid body 8. When cleaning of the steam channels PI is required, the whole of the channel bottom shell 205 and the removable lid assembly 13 can be removed from the lid body 3. This exposes part of the steam channels PI on the channel top plate 206 and part of the steam channels PI on the channel bottom shell 205, and the removable lid assembly 13 and the channel bottom shell 205 removed from the lid body 3 can be cleaned by the user with water, and the channel top plate 206 remaining on the lid body 3 can be cleaned by the user by wiping. In this solution, the channel top plate 206 is butted against the channel bottom shell 205 on the removable lid assembly 13 when the removable lid assembly 13 is mounted to the lid body 3 to form the closed steam channels PI.

[0137] The channel bottom shell 205 is provided with the above-mentioned cooking steam inlet 203 and the cooking steam outlet 204. In other examples not shown, the cover plate 14 can be provided with the above-mentioned cooking steam inlet 203 and the cooking steam outlet 204, and the channel bottom shell 205 is provided with a channel structure at positions corresponding to the steam inlet port 201 and the cooking steam outlet 204. A sealing member is sandwiched between the channel structure and the cover plate 14. In the example shown in the figure, the steam generating device 40 is arranged in the pot body 2, and the channel bottom shell 205 is provided with the above-mentioned steam inlet port 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 steam inlet port 201 to admit steam from the upper side.

[0138] Referring back to Figure 6 and Figure 8 , the cover body 3 further comprises a temperature measuring device 50 for detecting the temperature of the steam in the cooking cavity. The temperature measuring device 50 comprises a temperature measuring element 51. The channel top plate is provided with a temperature measuring hole 219, and at least a portion of the temperature measuring element 51 is arranged in the cooking steam discharge channel P12 via the temperature measuring hole 219.

[0139] The configuration of the steam channel assembly 200 will be further described below with reference to the example shown in the figure.

[0140] As shown in Figure 12 and Figure 13 , the channel bottom shell 205 extends beyond the rear portion of the cover plate 14 in the longitudinal direction and the lateral direction of the horizontal plane, and specifically, the steam channel assembly 200 is arranged astride the cover plate 14 and the cover plate seat 15. The steam inlet port 201 is located at the lateral end portion 210 of the channel bottom shell 205 in the lateral direction. The steam generating device 40 is arranged at the corner portion of the rear end of the pot body 2, and the lateral end portion 210 of the channel bottom shell 205 in the lateral direction corresponds to the corner portion of the cover body 3. In this way, the position of the steam inlet port 201 can be corresponded to the water container 41 of the steam generating device 40 in the up-down direction, and steam enters the steam inlet port 201 from the lower side, so that the steam path between the steam inlet port 201 and the water container 41 is short and straight. At least the cooking steam outlet 202 is located at the front end portion 211 of the channel bottom shell 205 in the longitudinal direction. For the example shown in the figure, both the cooking steam outlet 202 and the cooking steam inlet 203 are arranged at the front end portion 211 of the channel bottom shell 205 in the longitudinal direction. The cooking steam outlet 204 is spaced apart from the cooking steam inlet 203 in the longitudinal direction and is located on the longitudinal center line of the cover plate 14.

[0141] The steam supply passage P11 for the steam supply to the cooking vessel is provided with a steam outlet 202 at one end and a steam inlet 201 at the other end. In other words, the steam inlet 201 and the steam outlet 202 are located at the two ends of the steam supply passage P11 for the steam supply to the cooking vessel. Alternatively, the steam supply passage P11 for the steam supply to the cooking vessel is a straight passage with a center line extending in the front-to-rear direction of the cover plate 14 at a preset angle. Further, the steam supply passage P11 for the steam supply to the cooking vessel is inclined relative to the longitudinal center line of the cover plate 14. It should be noted that, in the example of the detachable cover assembly 13, the longitudinal center lines of the cover plate 14 and the detachable cover assembly 13 are collinear.

[0142] It should be noted that, as used herein, the term "longitudinal" or "longitudinal direction" refers to the front-to-rear direction, and the term "lateral" or "lateral direction" refers to the left-to-right direction.

[0143] As shown in FIG. 1, the steam passage assembly 200 is arranged on the cover plate 14 of the detachable cover assembly 13. The steam passage assembly 200 includes a channel base 205 and a cover plate seat 15. The channel base 205 is arranged on the cover plate 14 of the detachable cover assembly 13. The channel base 205 is provided with a steam supply passage P11 for the steam supply to the cooking vessel. The steam supply passage P11 for the steam supply to the cooking vessel is provided with a steam outlet 202 at one end and a steam inlet 201 at the other end. In other words, the steam inlet 201 and the steam outlet 202 are located at the two ends of the steam supply passage P11 for the steam supply to the cooking vessel. Alternatively, the steam supply passage P11 for the steam supply to the cooking vessel is a straight passage with a center line extending in the front-to-rear direction of the cover plate 14 at a preset angle. Further, the steam supply passage P11 for the steam supply to the cooking vessel is inclined relative to the longitudinal center line of the cover plate 14. It should be noted that, in the example of the detachable cover assembly 13, the longitudinal center lines of the cover plate 14 and the detachable cover assembly 13 are collinear. Figure 14 As shown in FIG. 1, the steam passage assembly 200 is arranged on the cover plate 14 of the detachable cover assembly 13. The steam passage assembly 200 includes a channel base 205 and a cover plate seat 15. The channel base 205 is arranged on the cover plate 14 of the detachable cover assembly 13. The channel base 205 is provided with a steam supply passage P11 for the steam supply to the cooking vessel. The steam supply passage P11 for the steam supply to the cooking vessel is provided with a steam outlet 202 at one end and a steam inlet 201 at the other end. In other words, the steam inlet 201 and the steam outlet 202 are located at the two ends of the steam supply passage P11 for the steam supply to the cooking vessel. Alternatively, the steam supply passage P11 for the steam supply to the cooking vessel is a straight passage with a center line extending in the front-to-rear direction of the cover plate 14 at a preset angle. Further, the steam supply passage P11 for the steam supply to the cooking vessel is inclined relative to the longitudinal center line of the cover plate 14. It should be noted that, in the example of the detachable cover assembly 13, the longitudinal center lines of the cover plate 14 and the detachable cover assembly 13 are collinear. Figure 13 As shown in FIG. 1, the steam passage assembly 200 is arranged on the cover plate 14 of the detachable cover assembly 13. The steam passage assembly 200 includes a channel base 205 and a cover plate seat 15. The channel base 205 is arranged on the cover plate 14 of the detachable cover assembly 13. The channel base 205 is provided with a steam supply passage P11 for the steam supply to the cooking vessel. The steam supply passage P11 for the steam supply to the cooking vessel is provided with a steam outlet 202 at one end and a steam inlet 201 at the other end. In other words, the steam inlet 201 and the steam outlet 202 are located at the two ends of the steam supply passage P11 for the steam supply to the cooking vessel. Alternatively, the steam supply passage P11 for the steam supply to the cooking vessel is a straight passage with a center line extending in the front-to-rear direction of the cover plate 14 at a preset angle. Further, the steam supply passage P11 for the steam supply to the cooking vessel is inclined relative to the longitudinal center line of the cover plate 14. It should be noted that, in the example of the detachable cover assembly 13, the longitudinal center lines of the cover plate 14 and the detachable cover assembly 13 are collinear.

[0144] The channel top plate 206 can be detachably connected to the channel bottom shell 205 through a buckle structure. The buckle structure includes a fixed buckle 212 and a movable buckle 213, which correspond to different side edges of the steam channel assembly 200 respectively. The fixed buckle 212 is connected to the channel bottom shell 205 and is provided with a buckle hole 214. The movable buckle 213 is rotatably connected to the seat support part 29. The channel top plate 206 is provided with a first protruding buckle 215 matched with the fixed buckle 212 and a second protruding buckle 216 matched with the movable buckle 213. The first protruding buckle 215 can be buckled into the buckle hole 214 of the fixed buckle 212, and the second protruding buckle 216 can be buckled by the movable buckle 213 from the upper side. The seat support part 29 is provided with a column protruding upward at intervals, and the movable buckle 213 is rotatably connected to the column. When assembled, the first protruding buckle 215 is buckled into the buckle hole 214 of the fixed buckle 212 first, to realize the fixation of one side edge of the assembly; and then the movable buckle 213 is rotated to be buckled to the second protruding buckle 216, to realize the fixation of the other side edge of the assembly. When disassembled, the movable buckle 213 is unlocked first, and then the fixed buckle 212 is separated.

[0145] The cover plate 14 at least constitutes a part of the top surface of the cooking cavity, and is provided with an inlet and outlet concentrated distribution area R at the part constituting the top surface, Figure 11 and Figure 13 The approximate position and shape of the inlet and outlet concentrated distribution area R are shown by a dashed line. The inlet and outlet concentrated distribution area R is provided with the cooking steam outlet 202 and the cooking steam inlet 203. Specifically, the area of the cover plate 14 adjacent to the rear end portion 36b is provided with the inlet and outlet concentrated distribution area R of the steam channel assembly 200. As shown in the example, the channel bottom shell 205 is provided with the inlet and outlet concentrated distribution area R, which is arranged in the area of the cover plate 14 adjacent to the rear end portion 36b. This design ingeniously concentrates the cooking steam outlet 202 and the cooking steam inlet in a relatively small area, and does not need to arrange a sealing member and a sealing structure at the two ports respectively, simplifying the manufacturing and assembly process, and also making the structure more concise. The inlet and outlet concentrated distribution area R is arranged at the front end portion of the channel bottom shell 205 in the longitudinal direction.

[0146] Alternatively, the area of the cover plate 14 adjacent to the rear end portion 36b is connected with a steam passing cover 33. The steam passing cover 33 is provided with openings corresponding to the cooking steam outlet 202 and the cooking steam inlet 203. For example, the steam passing cover 33 is annular, and has annular openings. Alternatively, the steam passing cover 33 is provided with openings corresponding to the cooking steam outlet 202 and the cooking steam inlet 203, respectively. The steam passing cover 33 can be made of different materials or individually designed according to the needs of the user. Different components of the detachable cover assembly 13 are designed according to the functions to be performed and the effects to be achieved. The surface of the cover plate is required to be made of food-grade stainless steel as it serves as the top surface of the cooking cavity. In addition, the surface is also the visible surface after the cooking appliance is opened. Therefore, the openings for the cooking steam and the cooking steam are designed in a relatively small area of the visible surface to improve the user's visual experience. Alternatively, the cover plate 14 is provided with openings corresponding to the cooking steam outlet 202 and the cooking steam inlet 203 in the part of the inlet and outlet concentrated distribution area R. For example, the cover plate 14 is provided with a steam passing portion through hole 32 (i.e. an opening), and the steam passing portion 217 described below is combined with the steam passing portion through hole 32. Alternatively, the cover plate 14 is provided with openings corresponding to the cooking steam outlet 202 and the cooking steam inlet 203, respectively. The steam passing portion 217 described below abuts against the part of the cover plate 14 having the two openings.

[0147] In some examples, the part of the cooking steam supply channel adjacent to the cooking steam outlet is contained in the part of the cooking steam discharge channel adjacent to the cooking steam inlet in terms of space occupation. For the example shown, the part of the cooking steam supply channel adjacent to the cooking steam outlet is contained in the part of the cooking steam discharge channel adjacent to the cooking steam inlet. In some alternative examples, the part of the cooking steam supply channel adjacent to the cooking steam outlet is arranged adjacent to the part of the cooking steam discharge channel adjacent to the cooking steam inlet in terms of spatial distribution. The arrangement and spatial distribution of the cooking steam supply channel and the cooking steam discharge channel can be designed according to the internal structure of the cover body, for example, independently or contained in each other, and the position of the outlet of the cooking steam discharge channel.

[0148] Specifically, the channel bottom shell 205 comprises a downward protruding steam passing portion 217, which is provided with a steam passing opening 218 for communicating the steam channel P1 with the cooking cavity. The steam passing opening 218 comprises a complementary cooking steam outlet 202 communicating with the complementary cooking steam supply channel P11 and / or a cooking steam inlet 203 communicating with the cooking steam exhaust channel P12. That is, the complementary cooking steam outlet 202 and / or the cooking steam inlet 203 are arranged at the steam passing portion 217. In the illustrated example, the inlet and outlet concentrated distribution region R is arranged at the steam passing portion 217, so that the complementary cooking steam outlet 202 and the cooking steam inlet 203 are arranged at 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.

[0149] The channel bottom shell 205 can be closer to the cover plate 14 at the downward protruding steam passing portion 217, and the steam passing portion 217 is limited in the steam passing portion passing hole 32, which can make the steam passing opening 218 on the steam passing portion 217 communicate with the cooking cavity, and on the other hand, the cover plate 14 limits the horizontal position of the channel bottom shell 205 at the steam passing portion 217, avoiding the horizontal movement of the channel bottom shell 205 relative to the cover plate 14.

[0150] Exemplarily, the steam passing portion 217 is a flange-shaped protruding portion, which extends into or passes through the steam passing portion passing hole 32. The flange surface can abut against the edge of the steam passing portion passing hole 32, and the protruding portion can be limited in the steam passing portion passing hole 32, and this assembly structure can stably keep the steam passing portion on the cover plate.

[0151] The steam passing portion 217 is located at the front end portion 211 of the channel bottom shell 205 in the longitudinal direction. In design, the steam channel assembly 200 in the longitudinal direction can better utilize the space to arrange the steam channel P1 with a longer extension path, so as to miniaturize the size of the steam channel assembly 200 in the longitudinal direction, so that the part of the steam channel 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 can effectively limit the horizontal movement of the channel 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.

[0152] The steam cover 33 is separated from the steam cover 217 on both sides of the cover plate 14, and the steam cover 33 is located on the lower side of the cover plate 14 to fix the steam cover 217 to the cover plate 14. The removable cover assembly 13 further comprises a steam area seal 34. The steam area seal 34 is arranged between one of the steam cover 33 and the steam cover 217 and the edge of the steam cover through hole 32. For example, as shown in the example, the steam area seal 34 is arranged between the cover plate 14 and the steam cover 217 to form a seal between the cover plate 14 and the steam cover 217. The steam cover 217 is located in the steam cover through hole 32 and connected with the steam cover 33, and the periphery of the steam cover 33 is larger than the steam cover through hole 32, the edge of the steam cover through hole 32 can be clamped between the steam cover 217 and the steam cover 33, and the steam area seal 34 is clamped between the cover plate 14 and the steam cover 217. Alternatively, the steam cover 33 is welded with the steam cover 217. Alternatively, the steam cover 33 is connected with the steam cover 217 by threads. Alternatively, the steam cover 33 is connected with the steam cover 217 by fasteners.

[0153] One of the outstanding optimization improvements of the present application is that the cooking steam supply channel P11 is arranged inside the cooking steam exhaust channel P12.

[0154] As described above, the steam channel assembly 200 is formed with a cooking steam supply channel P11 and a cooking steam exhaust channel P12. The cooking steam supply channel P11 is used for the steam for cooking the cavity to pass through; the cooking steam exhaust channel P12 is used for the steam discharged from the cooking cavity to pass through. In order to optimize the design, as shown in Figure 9 、 Figures 12 to 15 The cooking steam supply channel P11 is arranged inside the cooking steam exhaust channel P12. The cooking steam inlet 203 is distributed on the side of the cooking steam outlet 202.

[0155] In this way, the cooking steam supply passage P11 is contained in the cooking steam discharge passage P12, and occupies the space inside the cooking steam discharge passage P12, so that the two steam passages P1 occupy the same area in the cover body, and the structure of the two steam passages P1 can be more compactly arranged, so that the internal space in the cover body 3 is small, which is beneficial to the miniaturization of the cover body, and improves the utilization rate of the internal space. Moreover, the internal temperature of the cooking steam discharge passage P12 is relatively high, so that the cooking steam supply passage P11 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 passage P11, 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 when transmitting in the cooking steam supply passage P11, so as to avoid that the water droplets mixed in the cooking steam affect the cooking effect. The present scheme reduces the heat loss of the cooking steam in the transmission process, and effectively ensures that the moisture retention of food such as rice reaches the best effect. Furthermore, the channel design defined in the present scheme enables the sealing of the two steam passages to be constructed by an inner and outer double sealing manner and form an excellent sealing effect, which reduces the flow loss of the cooking steam in the transmission process.

[0156] As described above, the cooking steam supply passage P11 can be formed by the cooking steam passage member 208. Specifically, the cooking steam passage member 208 is arranged on the passage bottom shell 205 and located in the area defined by the outer peripheral portion of the passage bottom shell 205. The cooking steam passage member 208 is connected to the passage bottom shell 205 by suitable means such as welding, clamping, fasteners such as screws, etc. The cooking steam passage member 208 can be surrounded by the passage top plate 206 to form the cooking steam supply passage P11, so that the cooking steam passage member 208 forms at least the bottom wall of the cooking steam supply passage P11, and the passage top plate 206 forms at least the top wall of the cooking steam supply passage P11. The present scheme uses an independent passage member on the passage bottom shell 205 to form the bottom part of the cooking steam supply passage P11, which can be easily arranged at the desired position on the passage bottom shell 205, and the sealing structure between it and the passage top plate 206 can also be easily constructed.

[0157] In some examples, as shown in the illustrated example, the steam channel member 208 is made of elastic sealing material and abuts against the channel top plate 206. In other words, the steam channel member 208 is a part made of flexible material. The steam channel member 208 thus seals against the channel top plate 206 to form an inner seal between the steam channel member 208 and the channel top plate 206. The steam 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 channel sealing member. In this way, no additional sealing ring is needed to seal the gap between the steam channel member 208 and the channel top plate 206. In addition, a seal is also formed between the steam channel member 208 and the channel bottom shell 205 to prevent steam from leaking out. The cooking steam channel sealing member 207 is arranged between the outer periphery of the channel bottom shell 205 and the channel top plate 206 to form an outer seal.

[0158] In the illustrated example, the steam channel member 208 can be independently fixed to the channel bottom shell 205. No pressing plate for fixing the sealing ring is needed, which reduces the number of components, simplifies the structure and assembly process, and is conducive to efficient use of the internal space of the cover 3 and improvement of assembly efficiency. In alternative examples, a pressing plate is arranged in the steam channel member 208, the pressing plate presses the bottom wall of the steam channel member 208 against the channel bottom shell 205, and the side peripheral wall of the steam channel member 208 together with the pressing plate forms most of the steam supply channel P11, and the top of the side peripheral wall abuts against the lower bottom surface of the channel top plate 206, thereby constituting the entire steam supply channel P11. The pressing plate is preferably made of a rigid metal material that is not prone to rust, and a fastener is used to connect the pressing plate, the bottom wall of the channel bottom shell, and the cover plate of the detachable cover assembly near the steam outlet.

[0159] In some alternative examples not shown, the steam channel assembly 200 further comprises a steam channel sealing member arranged at the outer periphery of the steam channel member 208 and abutting against the channel top plate 206. The channel sealing member is separately arranged to form a seal for the steam supply channel P11, and the structure of the steam channel sealing member can be simply designed to facilitate production and manufacture of the steam channel sealing member. The steam channel sealing member can be fixed to the channel bottom shell 205 by the steam channel member 208, for example, the steam channel sealing member is a sealing ring with a lip, and the bottom of the sealing ring is clamped between the steam channel member 208 and the channel bottom shell 205. In this scheme, the steam channel member 208 serves as a pressing plate and can fix the steam channel sealing member.

[0160] In some alternative examples, a steam channel member that can independently constitute a steam supply channel is arranged in the steam channel assembly. For example, the steam channel member can be constituted by a tubular member such as a rubber tube or the like, or by a separate channel.

[0161] One prominent optimization improvement of the present application is to set the import and export concentrated distribution area R to improve the position arrangement of the cooking steam outlet 202 and the cooking steam inlet 203. The cooking steam outlet 202 and the cooking steam inlet 203 are concentrated in the import and export concentrated distribution area R. The import and export concentrated distribution area R is located at the rear of the cover plate 14 away from the cover opening mechanism. The steam exhaust passage P2 is located at the rear of the cover body 3. The cooking steam inlet 203 is located at the rear of the cover plate 14. The cooking steam exhaust passage P12 extends between the rear of the cover plate 14 and the rear of the cover body 3. In this arrangement, the extension path of the cooking steam exhaust passage P12 is shorter, which is conducive to the miniaturization of the cover body 3. The cooking steam outlet 202 is also located at the rear of the cover plate 14. The cooking steam supply passage P11 extends from the rear of the cover plate 14 and towards the rear of the cover body 3, which shortens the extension path of the cooking steam supply passage P11 and is conducive to the miniaturization of the cover body 3. Furthermore, in order to make the design structure of the cover plate 14 simple, the cooking steam outlet 202 is concentrated in the area where the cooking steam inlet 203 is located. The two steam inlets can be formed in the same area of the cover plate 14. When the cover body 3 is in the open state, the user observes the two steam inlets in an area inside the cover plate 14. Compared with two steam inlets dispersed in different areas, the present application provides a better user experience and better integrity of the inside appearance of the product.

[0162] The import and export concentrated distribution area R can be arranged on the longitudinal center line CL of the cover plate 14. On the one hand, it can make the steam entering through the cooking steam outlet 202 spread from the middle to the left and right sides in the transverse direction, and the steam spreads more evenly, which is conducive to more effective wetting of a large area of food. On the other hand, the overall appearance of the inside of the cover body 3 is better. On the other hand, it is more suitable for a circular / elliptical cover plate with an arc-shaped rear portion. The import and export concentrated distribution area R is closer to the rear edge of the cover plate 14 in the middle of the transverse direction than on the left and right sides, and the space utilization in the middle is greater.

[0163] The import and export concentrated distribution area R has an axisymmetric shape, and the center of the import and export concentrated distribution area R is on the longitudinal center line CL of the cover plate 14. For example, the shape of the import and export concentrated distribution area R can be designed as an axisymmetric shape such as a circular shape, a square shape, a ring shape, a semicircular shape, an elliptical shape, etc. according to needs. The structure design can be improved from the area shape, so that the structure adapted to the area shape can have a simple structure, for example, the structure of the cooking steam outlet 202 and the cooking steam inlet 203 is simple, which improves the overall appearance of the inside of the cover body 3.

[0164] The area defined by the cooking steam outlet 202 has a first center C1, and the area defined by the cooking steam inlet 203 has a second center C2. The first center C1 and the second center C2 are located on opposite sides of the longitudinal center line CL. It is to be noted that the area defined by the cooking steam outlet 202 refers to the area where the cooking steam outlet 202 is designed to be arranged, and similarly, the area defined by the cooking steam inlet 203 refers to the area where the cooking steam inlet 203 is designed to be arranged. The number of the cooking steam outlets 202 is more than one, and the number of the cooking steam inlets 203 is also more than one. When the number of the two is one, the area defined by the port is the port, the first center C1 is the center of the cooking steam outlet 202, and the second center C2 is the center of the cooking steam inlet 203. When the number of the two is more than one, the area defined by the port is the area containing all the ports. The cooking steam outlet 202 mainly occupies the area on one side of the longitudinal center line CL in the concentrated distribution area R of the inlet and outlet, and the cooking steam inlet 203 mainly occupies the area on the other side of the longitudinal center line CL in the concentrated distribution area R of the inlet and outlet. Alternatively, the cooking steam outlet 202 and the cooking steam inlet 203 are located on opposite sides of the longitudinal center line CL. This makes the cooking steam outlet 202 occupy the area on one side of the longitudinal center line CL in the concentrated distribution area R of the inlet and outlet, and the cooking steam inlet 203 occupy the area on the other side of the longitudinal center line CL in the concentrated distribution area R of the inlet and outlet. The cooking steam outlet 202 and the cooking steam inlet 203 each have a certain arrangement space in the transverse direction, which facilitates the design of the channel structure of the cooking steam supply channel P11 and the cooking steam exhaust channel P12.

[0165] As shown in Figure 15 , the first center C1 has a first distance d1 to the longitudinal center line CL, and the second center C2 has a second distance d2 to the longitudinal center line CL, wherein d1 = d2. In design, the size and shape of the cooking steam outlet 202 and the cooking steam inlet 203 are designed based on the area center of each of them, and the distance from the area center to the longitudinal center line CL is equal, which makes the structure design easier and also improves the overall appearance of the inside of the cover body 3.

[0166] The first center C1 and the second center C2 are on one transverse reference line RL. This scheme makes the structure design easier and also improves the overall appearance of the inside of the cover body 3. For circular cooking steam outlet 202 and cooking steam inlet 203, the center of the cooking steam outlet 202 and the center of the cooking steam inlet 203 have a third distance d3, the radius of the cooking steam outlet 202 is d4, and the radius of the cooking steam inlet 203 is d5, d3 > d4 + d5. Thus, the cooking steam outlet 202 and the cooking steam inlet 203 have a certain spacing distance.

[0167] The shape of at least the import and export concentrated distribution area R corresponds to the shape of the outer contour of the cover plate 14. For example, the outer contour of the cover plate 14 is circular, the import and export concentrated distribution area R is also circular, the area defined by the cooking steam outlet 202 is circular, and the area defined by the cooking steam inlet 203 is circular. The structural design can be improved in terms of area shape, so that the overall structural design of the cover body 3 has consistency and simple structure, and the overall appearance of the inner side of the cover body 3 is improved.

[0168] It should be noted that the above improvement in the position arrangement of the cooking steam outlet 202 and the cooking steam inlet 203 is not limited to the cooking appliance 1 with the top heating device 100, but also applies to the cooking appliance 1 without the top heating device 100.

[0169] For the illustrated example, the edge of the protruding portion 25 of the cover plate 14 has a first size L1 from the center C3 of the cover plate 14 on the longitudinal center line CL of the cover plate 14, the center of the import and export concentrated distribution area R has a second size L2 from the center C3 of the cover plate 14 on the longitudinal center line CL, and the rear end edge of the cover plate 14 has a third size L3 from the center C3 of the cover plate 14 on the longitudinal center line CL. L3>L2>L1.

[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 applicable or are otherwise stated. The application has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and illustration, and 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 fall within the scope of the application claimed.

Claims

1. A detachable lid assembly for a cooking appliance, the cooking appliance comprising a lid and a pot, the lid being openably and closably disposed on the pot to form a cooking cavity between the lid and the pot, the detachable lid assembly comprising a lid plate, characterized in that, The steam passage assembly is formed with: a cooking steam outlet passage for the steam from the cooking cavity to pass through; and a cooking steam outlet passage for the steam from the cooking cavity to pass through; The cover plate constitutes at least a part of the top surface of the cooking cavity, and is provided with an import and export concentrated distribution area at the part constituting the top surface, and the cooking steam outlet of the cooking steam supply passage and the cooking steam import of the cooking steam outlet passage are both located in the import and export concentrated distribution area.

2. The detachable lid assembly of claim 1, wherein, The part of the cooking steam supply passage adjacent to the cooking steam outlet and the part of the cooking steam outlet passage adjacent to the cooking steam import are arranged adjacent in spatial distribution or have a containing relationship in space occupation.

3. The detachable lid assembly of claim 1, wherein, The cooking steam supply passage is arranged inside the cooking steam outlet passage, and the cooking steam import is distributed adjacent to the cooking steam outlet.

4. The detachable lid assembly of claim 1, wherein, The steam passage assembly is arranged adjacent to the rear end of the detachable cover assembly.

5. The detachable lid assembly of claim 4, wherein, The area of the cover plate adjacent to the rear end is provided with the import and export concentrated distribution area and / or is connected with a steam passing cover, and the cover plate is provided with openings corresponding to the cooking steam outlet and the cooking steam import on the part of the import and export concentrated distribution area or the steam passing cover.

6. The detachable lid assembly of claim 4, wherein, The detachable cover assembly further comprises a cover plate seat connected with the cover plate and a pot opening sealing ring arranged on the cover plate seat, and the cover plate is provided with a through hole for infrared rays to pass through in the cooking area defined by the pot opening sealing ring, and the area of the through hole is greater than 3 / 5 of the area of the cooking area, and the steam passage assembly is arranged at the area outside the through hole.

7. The detachable lid assembly of claim 6, wherein, The through hole is adjacent to the front end of the detachable cover assembly.

8. The detachable lid assembly of claim 6, wherein, The cover plate is provided with a through hole sealing ring fixed on the periphery of the through hole and located on the side opposite to the side where the pot opening sealing ring is located.

9. The detachable lid assembly of any one of claims 1 to 8, wherein, The detachable cover assembly comprises a cover plate seat connected with the cover plate, and the steam passage assembly is arranged across the cover plate and the cover plate seat.

10. The detachable lid assembly of claim 9, wherein, The import of the cooking steam supply passage is provided with a cooking steam docking cover connected with or integrally arranged at the area adjacent to the rear end of the cover plate seat.

11. The detachable lid assembly of any one of claims 1 to 8, wherein, The steam passage assembly comprises a passage bottom shell and a passage top plate connected with each other and forming the cooking steam supply passage and the cooking steam outlet passage therebetween.

12. The detachable lid assembly of claim 11, wherein, The passage bottom shell is provided with a steam passing portion, the cover plate is provided with a steam passing portion passing hole, and the steam passing portion and the steam passing portion passing hole are combined.

13. The detachable lid assembly of claim 12, wherein, The steam passing portion is a flange-shaped protruding portion extending into or through the steam passing portion passing hole.

14. The detachable lid assembly of claim 12, wherein, The import and export concentrated distribution area is arranged at the steam passing portion.

15. The detachable lid assembly of claim 12, wherein, The detachable cover assembly comprises a steam passing cover welded, threadedly connected or connected through a fastener with the steam passing portion, and the periphery of the steam passing cover is greater than the steam passing portion passing hole.

16. The detachable lid assembly of claim 15, wherein, One of the steam passing cover and the steam passing portion is provided with a sealing member between the periphery of the steam passing cover and the edge of the steam passing portion passing hole.

17. The detachable lid assembly of claim 11, wherein, The channel top plate is provided with a cooking steam outlet for discharging steam in the cooking steam discharging channel, and / or the channel bottom shell or the channel top plate is provided with a steam receiving port for receiving steam from a steam generating device.

18. 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 further comprises a steam channel assembly, the steam channel assembly is formed with: A cooking steam supply channel for supplying steam for cooking in the cooking cavity; and A cooking steam discharging channel for discharging steam from the cooking cavity; Wherein, the lower bottom surface of the cover body constitutes at least a part of the top surface of the cooking cavity, and is provided with an inlet and outlet concentrated distribution area at the part constituting the top surface, the cooking steam outlet of the cooking steam supply channel and the cooking steam inlet of the cooking steam discharging channel are located in the inlet and outlet concentrated distribution area.

19. 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 of any one of claims 1 to 17.

20. The cover of claim 18 or 19, wherein, The cover body comprises an opening mechanism, and the inlet and outlet concentrated distribution area is arranged at the rear portion of the cover plate away from the opening mechanism.

21. The cover of claim 18 or 19, wherein, The inlet and outlet concentrated distribution area is arranged on the longitudinal center line of the cover plate.

22. The cover of claim 18 or 19, wherein, The inlet and outlet concentrated distribution area has an axisymmetric shape, and the center of the inlet and outlet concentrated distribution area is on the longitudinal center line of the cover plate.

23. The cover of claim 18 or 19, wherein, The area defined by the cooking steam outlet has a first center, and the area defined by the cooking steam inlet has a second center, and the first center and the second center are respectively located on both sides of the longitudinal center line of the cover plate.

24. The cover body of claim 23, wherein, The first center has a first distance d1 to the longitudinal center line, and the second center has a second distance d2 to the longitudinal center line, and d1 = d2; and / or The first center and the second center are on a transverse reference line.

25. The cover of claim 18 or 19, wherein, The shape of at least the inlet and outlet concentrated distribution area among the inlet and outlet concentrated distribution area, the area defined by the cooking steam outlet, and the area defined by the cooking steam inlet corresponds to the shape of the outer contour of the cover plate.

26. The cover of claim 18 or 19, wherein, The cooking steam outlet and the cooking steam inlet are respectively located on both sides of the longitudinal center line of the cover plate.

27. The cover of claim 18 or 19, wherein, The steam channel assembly comprises a channel bottom shell, the channel bottom shell is located on the upper side of the cover plate, the channel bottom shell comprises a steam passing portion protruding downward, the cooking steam outlet and the cooking steam inlet are arranged in the steam passing portion, the cover plate is provided with a steam passing portion passing hole for the steam passing portion to pass through, and the steam passing portion is arranged in the steam passing portion passing hole.

28. The cover of claim 18 or 19, wherein, The steam channel assembly comprises a channel bottom shell, the channel bottom shell is provided with a steam receiving port for receiving steam from a steam generating device of the pot body, the channel bottom shell exceeds the rear portion of the cover plate in the longitudinal direction and the transverse direction on the horizontal plane, the steam receiving port is located at the side end portion of the channel bottom shell in the transverse direction, and the side end portion corresponds to the corner portion of the cover body.

29. The cover of claim 18 or 19, wherein, The steam passage assembly comprises a passage bottom shell and a passage top plate, the passage bottom shell is located at the lower side of the passage top plate and forms the cooking steam supply passage and the cooking steam exhaust passage between the passage top plate.

30. The cover according to claim 29, wherein, the passage top plate is provided with a cooking steam outlet for discharging steam in the cooking steam exhaust passage; and / or the passage bottom shell or the passage top plate is provided with a steam receiving port for receiving steam from the steam generating device of the pot body.

31. The cover according to claim 29, wherein, the passage bottom shell is detachably connected with the passage top plate; and / or the cover comprises a cover main body, the passage top plate is integrally designed with the cover main body or is detachably connected with the cover main body.

32. A cooking appliance, characterized by The cooking appliance comprises the cover according to any one of claims 18 to 31, the pot body and the steam generating device, the cover is openably arranged on the pot body to form a cooking cavity between the cover and the pot body, and the steam generating device is arranged on the cover or the pot body to supply steam to the cooking steam supply passage.

33. The cooking appliance of claim 32, wherein, The steam generating device has a top opening, and when the cover is closed on the pot body, a cooking steam docking cover on the cover covers the top opening.

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