Cover and cooking appliance

Abstract

The application discloses a cover body and a cooking utensil. The cover body comprises an infrared heating device and a steam passage assembly. The infrared heating device forms an infrared radiation area on a plane where a pot opening is located, and the infrared radiation area is located in a cooking area. The steam passage assembly forms at least a supplementary cooking steam supply passage. The steam passage assembly forms a steam passage area on the plane where the pot opening is located. A region where a supplementary cooking steam outlet of the supplementary cooking steam supply passage is located is arranged in the cooking area. In a projection direction perpendicular to the plane where the pot opening is located, the steam passage area is arranged between the cooking area and a cover bottom peripheral area. In the design, the cover bottom peripheral area can be better utilized to arrange steam passages with long paths, the area ratio of the steam passage area in the cooking area is reduced, the area of the infrared radiation area can not be reduced due to the supplementary cooking steam supply passage added in the cover body, and the space layout inside the cover body is reasonably adjusted.

Description

Technical Field

[0001] This application relates to the technical field of kitchen appliances, and more specifically to a lid and cooking utensil. Background Technology

[0002] Existing cooking appliances, such as rice cookers, typically have a heating element inside the lid to heat the food inside the inner pot from the top. In some appliances, this heating element is an infrared heater, which generates infrared radiation during cooking. This infrared radiation radiates towards the food in the inner pot, heating it through this heat radiation. The radiation area of ​​the infrared heater on the lid should be as large as possible to allow more infrared radiation to pass through. These infrared-heated cooking appliances provide a large amount of heat to the food during cooking, which can easily cause the surface of the food to dry out and turn yellow.

[0003] Therefore, a lid and cooking utensil are needed to at least partially solve the above problems. Utility Model Content

[0004] The description of this utility model introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This description is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, this application provides a lid for a cooking utensil. The cooking utensil includes a lid and a pot body containing an inner pot. The lid is closable and disposed on the pot body and has a bottom surface, such that when the lid is closed, the bottom surface of the lid contacts the opening of the inner pot, forming a cooking cavity between the lid and the inner pot.

[0006] The portion of the bottom surface of the lid inside the pot opening is the cooking area, and the portion of the bottom surface of the lid outside the pot opening is the perimeter area of ​​the lid bottom. The lid is equipped with a manual opening mechanism; the end of the lid with the manual opening mechanism is the front end, and the opposite end of the front end is the rear end.

[0007] The cover includes:

[0008] An infrared heating device forms an infrared radiation area on the plane of the pot opening, and this infrared radiation area is located within the cooking area; and

[0009] The steam channel assembly forms at least one supplementary steam supply channel for communication with the cooking cavity. The steam channel assembly forms a steam channel area on the plane where the pot opening is located, and the supplementary steam outlet area of ​​the supplementary steam supply channel is located within the cooking area.

[0010] In the projection direction perpendicular to the plane where the pot opening is located, the steam passage area spans between the cooking area and the area around the bottom of the lid.

[0011] According to this design, an infrared heating device and a steam supply channel are simultaneously installed inside the lid. The infrared heating device radiates infrared rays into the cooking cavity during cooking, effectively heating the surface food and ensuring even heating, thus enhancing its aroma. High-temperature steam is delivered into the cooking cavity through the steam supply channel, heating and moistening the food inside, keeping foods like rice moist and preventing them from drying out and turning yellow. Users can enjoy freshly cooked, perfectly moist, flavorful, and aromatic food at any time after cooking, effectively solving the problem of food drying out during the heat preservation process and improving the user experience.

[0012] The cooking appliance of this application achieves a synergistic effect between steam function and infrared radiation penetration function, enhancing the product's versatility and making it easier to meet the diverse food needs of consumers. The design allows for better utilization of the area around the lid's bottom to arrange a longer steam channel, reducing the area of ​​the steam channel in the cooking area. The area of ​​the infrared radiation zone does not need to be reduced by adding a supplementary steam supply channel within the lid, and the internal spatial layout of the lid is rationally adjusted.

[0013] Optionally, the steam channel area is located near the rear end of the cover and arranged horizontally parallel to the infrared radiation area. According to this scheme, the steam channel assembly and the infrared heating device occupy different areas of the cover in the horizontal direction, thereby improving the space utilization rate of the cover in the horizontal direction.

[0014] Optionally, in the projection direction perpendicular to the plane where the pot opening is located, the infrared radiation area has an area ratio SP1 in the cooking area, where SP1>1 / 2. According to this solution, the steam channel area occupies a smaller portion of the cooking area, while the infrared radiation area occupies more than half of the cooking area. The area of ​​the infrared radiation area does not need to be reduced by adding a supplementary steam supply channel in the lid, thus allowing the infrared heating device to radiate infrared rays over a large area into the cooking cavity, which ensures the cooking effect.

[0015] Optionally, the infrared radiation zone occupies the entire cooking area except for the area where the supplementary steam outlet is located. According to this scheme, the infrared radiation zone is relatively large, and the infrared heating device can radiate infrared rays over a wide area of ​​the cooking cavity.

[0016] Optionally, the infrared radiation area and the steam channel area are independent of each other and have a preset distance between them. According to this solution, the infrared heating device and the steam channel assembly occupy different spaces in the cover in the horizontal direction, and there is an assembly distance between them, so that the installation structure can be set up independently using the assembly distance, and the assembly of each other is not affected.

[0017] Optionally, in the direction of the plane where the pot opening is located, the rear part of the outline of the infrared radiation area forms a convex profile protruding towards the center of the cooking area. In the projection direction perpendicular to the plane where the pot opening is located, the projection of the area where the supplementary steam outlet is located is at least partially located within the projection of the avoidance recess formed by the convex profile. According to this solution, a portion of the area originally occupied by the infrared heating area is saved for arranging the steam channel area. The spatial layout of the lid is further rationally adjusted, and the infrared radiation area and the steam channel area can be arranged closer and more compactly. While the area of ​​the infrared radiation area meets the cooking requirements, the size of the lid will not be significantly increased due to the addition of the steam channel component, which is conducive to the miniaturization of the lid.

[0018] Optionally, both the convex profile and the outer profile of the infrared radiation area are curved. According to this solution, the curved design makes better use of space and presents a simple and elegant inner structure of the cover to the user, enhancing the user's visual experience and thus improving the user's overall experience.

[0019] Optionally, the steam channel assembly also forms a cooking steam exhaust channel communicating with the cooking chamber. The supplementary cooking steam outlet of the cooking steam exhaust channel and the cooking steam inlet of the supplementary cooking steam supply channel are centrally located in the inlet / outlet distribution area, which is located at the rear of the cooking area. According to this solution, the supplementary cooking steam outlet and cooking steam inlet are cleverly designed to be concentrated in a relatively small area, making the area occupied by the steam channel area smaller and allowing for a larger area occupied by the infrared radiation area. The internal spatial layout of the cover is rationally adjusted, effectively solving the problem of insufficient internal space when simultaneously installing the infrared heating device and the steam channel assembly. Furthermore, it eliminates the need for separate seals and sealing structures at the two openings, simplifying manufacturing and assembly processes and resulting in a more concise structure. When the cover is open, the user can observe two steam outlets within one area on the inside of the cover. Compared to being scattered in different areas, the centralized arrangement provides better integrity of the inner appearance of the cover and a better user experience.

[0020] Optionally, the area of ​​the concentrated import and export distribution zone is 300–800 mm². 2 According to this plan, the area occupied by the concentrated import / export distribution area within the cooking area should be less than 800 mm². 2 This allows for a larger cooking area to be reserved for infrared heating devices.

[0021] Optionally, the periphery of the lid has at least one corner, and the steam channel assembly has a supplementary steam inlet located at the corner. The steam channel area is diagonally positioned between the cooking area and the corner. According to this design, the position of the steam inlet at the supplementary steam inlet corresponds vertically to the steam generator at the corner of the pot body, allowing steam to enter from bottom to top, resulting in a shorter and more direct steam path between the inlet and the steam generator.

[0022] Optionally, the supplementary steam supply channel extends along a straight line inclined relative to the longitudinal centerline of the lid. According to this design, the straight-line supplementary steam supply channel further shortens the steam flow distance, allowing the steam to quickly reach the cooking chamber and avoid energy loss; structurally, it can be easily constructed and occupies a small area in the steam channel region, which is beneficial for the miniaturization of the steam channel components.

[0023] Optionally, the lid has a cover plate, and an infrared heating device is located on the upper side of the cover plate. The cover plate has a light-transmitting area for infrared rays to pass through. In the projection direction perpendicular to the plane where the pot opening is located, the light-transmitting area falls into the infrared radiation area. According to this solution, the light-transmitting area of ​​the cover plate corresponds to the infrared heating device, and infrared rays can be radiated into the cooking cavity through the light-transmitting area, avoiding the cover plate blocking the infrared rays.

[0024] Optionally, the light-transmitting area corresponds in shape and size to the infrared radiation area. According to this solution, the light-transmitting area is designed to have a larger area, reducing the obstruction of infrared rays by the lid. The lid has a correspondingly shaped through-hole, or a correspondingly shaped light-transmitting portion made of a light-transmitting material. According to this solution, infrared rays can directly radiate to the food through the through-hole, avoiding heat loss and achieving higher heat utilization. The structure of the through-hole is more advantageous in solutions where the radiating plate generates infrared rays. In an alternative solution, the light-transmitting portion of the lid can block the infrared heating device, preventing users from being burned and / or electrocuted by direct contact with the infrared heating device after the lid is opened. In the projection direction perpendicular to the plane of the pot opening, the light-transmitting area has an area ratio SP2 in the cooking area, where SP2 > 1 / 2. According to this solution, the light-transmitting area occupies more than half of the cooking area on the lid, reducing the obstruction of infrared rays by the lid.

[0025] Optionally, the infrared heating device includes one of an infrared heating tube, an infrared heating film, and a radiant plate, wherein at least a portion of the lower surface of the radiant plate forms the top surface of the cooking cavity. According to this solution, the structure combining infrared heating and steam heating is suitable for various types of infrared cooking appliances.

[0026] Optionally, the cover has a cover plate forming the bottom surface of the cover, and the steam channel assembly is located above the cover plate and includes a channel bottom shell and a channel top plate. The channel bottom shell is located below the channel top plate and forms at least a supplementary steam supply channel between the two. According to this solution, two independent components that can be fitted together are used as the basic components of the steam channel. Part of the steam channel is formed by the channel bottom shell or its components, and the other part is formed by the channel top plate, making the production and manufacturing of the steam channel assembly easier.

[0027] Optionally, the lid also includes a lid body and a removable lid assembly, the removable lid assembly being detachably mounted on the lid body. The channel bottom shell is connected to the removable lid assembly, allowing it to be removed from or installed onto the lid together with the removable lid assembly. According to this solution, the channel bottom shell and its connected components can be integrally formed with the removable lid assembly and removed together from the lid for cleaning of the two steam channels. Alternatively, the lid also includes a lid body, with a lid plate fixedly connected to the lid body, and the channel bottom shell connected to the lid plate. According to this solution, the design combining infrared heating and steam heating is also suitable for cooking appliances where the lid plate is not removable from the lid body.

[0028] Optionally, the cover also includes a detachable cover assembly, which is detachably mounted on the cover and includes a cover plate and a cover plate seat; the cover plate seat is connected to the outer periphery of the cover plate, and the steam passage assembly spans across the cover plate and the cover plate seat. According to this solution, the area on the cover plate seat of the detachable cover assembly can be better utilized in the design to arrange a longer steam passage, reducing the area ratio of the steam passage assembly on the cover plate.

[0029] Optionally, the cover plate seat forms a protruding support portion at the rear of the cover plate, and the steam passage assembly spans across the cover plate and the support portion. According to this solution, the rear area of ​​the removable cover assembly can be better utilized in the design to arrange a longer steam passage, reducing the area ratio of the steam passage assembly in the cover plate.

[0030] According to another aspect of this application, a cooking appliance is provided, comprising a lid, a pot body, and a steam generating device according to any of the above aspects. The lid is closable and disposed on the pot body to form a cooking cavity between the lid and the pot body. The steam generating device is disposed on the lid or the pot body for supplying steam to a supplementary steam supply channel. According to this solution, an infrared heating device and a supplementary steam supply channel are simultaneously provided on the lid, allowing the infrared heating device to radiate infrared rays into the cooking cavity during cooking. The infrared rays effectively heat the surface food, ensuring even heating and enhancing its aroma. High-temperature steam is delivered into the cooking cavity through the supplementary steam supply channel, heating and moistening the food inside, keeping foods such as rice moist and preventing them from drying out and turning yellow. Attached Figure Description

[0031] The following drawings, which are incorporated herein by reference and used to understand this application, illustrate embodiments of the application and their descriptions, thereby explaining the principles of the application.

[0032] In the attached image:

[0033] Figure 1 A perspective view of a cooking appliance according to this application, wherein the lid is in a closed state;

[0034] Figure 2 for Figure 1 Another perspective view of the cooking appliance shown, with the lid in the open position;

[0035] Figure 3 for Figure 1 An exploded 3D view of the cooking utensils shown;

[0036] 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;

[0037] 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;

[0038] Figure 6 for Figure 5 Enlarged view of section A;

[0039] Figure 7 for Figure 5 An exploded perspective view of the infrared heating device and its lining.

[0040] Figure 8 for Figure 5 A perspective view of the infrared heating device and the main body of the cover shown;

[0041] Figure 9 for Figure 5 An exploded perspective view of the steam passage assembly and the removable cover assembly shown.

[0042] Figure 10 for Figure 5 A perspective view of the steam passage assembly and the removable cover assembly shown;

[0043] Figure 11 for Figure 5 A bottom view of the steam passage assembly and the removable cover assembly shown;

[0044] Figure 12 for Figure 5 Cross-sectional view of the steam passage assembly and the removable cover assembly shown;

[0045] Figure 13 for Figure 5 The top view of the steam passage assembly and removable cover assembly shown has the passage top plate removed;

[0046] Figure 14 for Figure 5 Another exploded perspective view of the steam passage assembly and the removable cover assembly shown;

[0047] Figure 15 for Figure 5 A top view of the infrared heating device, steam channel assembly, and removable cover assembly shown.

[0048] Figure 16 for Figure 15 The image shows a bottom view of the infrared heating device, steam channel assembly, and removable cover assembly.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1. Cooking utensils 2. Pot body

[0051] 3 lids 4 inner pots

[0052] 5. Inner pot heating device; 6. Pivot shaft

[0053] 7. Pot opening sealing ring; 8. Lid body

[0054] 9. Liner 10. Cover assembly

[0055] 11 User Interaction Area 12 Torsion Spring

[0056] 13 Removable cover assembly 14 Cover plate

[0057] 15 Cover plate seat 16 Housing

[0058] 17-inch middle plate, 18-inch base

[0059] 20 Inner lining through hole 21 Cover plate through hole

[0060] 22 Support section 23 Through hole sealing ring

[0061] 24 Pressure ring 25 Protrusion

[0062] 26 Recess 27 Steam Valve

[0063] 28 Steam seal 29 Support unit

[0064] 30 Steam docking cover for cookers; 31 Steam docking seal for cookers.

[0065] 32 Steam passage hole 33 Steam cover

[0066] 34 Steam passage seal; 35 Steam inlet for reheating.

[0067] 36a Front end of the removable cover assembly; 36b Rear end of the removable cover assembly

[0068] 37 Cylindrical wall 40 Steam generator

[0069] 41 Water container 42 Water container heating device

[0070] 50 Temperature measuring device 51 Temperature measuring element

[0071] 100 Infrared heating device 110 Radiation plate

[0072] 111 Avoidance gap 120 Heating component

[0073] 130 peripheral seal ring 140 fastener

[0074] 200 Steam passage assembly 201 Steam inlet

[0075] 202 Steam outlet for supplementary cooking; 203 Steam inlet for cooking.

[0076] 204 Cooking Steam Outlet 205 Channel Bottom Shell

[0077] 206 Channel Top Plate 207 Cooking Steam Channel Seal

[0078] 208 Steam passage component for supplementary cooking; 209 Passage wall

[0079] 210 Side end 211 Channel bottom shell front end

[0080] 212 Fixed buckle 213 Movable buckle

[0081] 214 Socket 215 First Protruding Buckle

[0082] 216 Second protrusion buckle 217 Steam passage part

[0083] 218 Steam inlet, 219 Temperature measuring hole

[0084] P1 Steam passage; P11 Supplementary cooking steam supply passage

[0085] P12 Cooking steam exhaust channel; P2 Exhaust channel

[0086] CL Vertical Centerline RL Horizontal Reference Line

[0087] C1 First Center, C2 Second Center

[0088] The center of the C3 cover plate is the R1 cooking area.

[0089] R11 Non-transparent area R12 Transparent area

[0090] R2 Infrared radiation area; R3 Steam channel area

[0091] R / R31 Import / Export Concentration Area, R4 Avoidance Depression Area

[0092] R10 cover area Detailed Implementation

[0093] The following description provides numerous specific details to offer a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with this application.

[0094] To fully understand this application, a detailed description will be provided below. It is obvious that the implementation of embodiments of this application is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this application are described in detail below; however, other embodiments may also be available in addition to these detailed descriptions.

[0095] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0096] Ordinal numbers such as “first” and “second” used in this application are merely identifiers and have no other meaning, such as a specific order. Moreover, 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”.

[0097] It should be noted that the terms “up,” “down,” “front,” “back,” “left,” “right,” “inner,” “outer,” and similar expressions used in this article are for illustrative purposes only and are not intended to be restrictive.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] It should be noted that the directional terms used in this article to describe the various parts and components of the cooking appliance 1, such as "up", "down", "above", "below", "upward", "downward", "facing upward", and "facing downward", are relative to the cooking appliance 1 when it is placed horizontally, upright, and the lid 3 is closed.

[0102] The lid body 3 basically includes the lid body 8. The lid body 8 includes an inner liner 9 and a cover assembly 10. The cover assembly 10 is located on the upper side or outer side of the inner liner 9 and can cover the inner liner 9. The upper surface of the cover assembly 10 has a user interaction area 11 for user operation. The inner liner 9 can be connected to the cover assembly 10 by a suitable method such as snap-fit, fastener connection such as screws, or adhesive. A pivot 6 is located on the inner liner 9 and is fitted with a torsion spring 12 for automatic lid opening. The pot body 2 also includes a lid opening button, and the lid body 3 has a manual lid opening mechanism. By pressing the lid opening button, the manual lid opening mechanism is unlocked. The end of the lid body 3 with the manual lid opening mechanism 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 close to the pivot 6 between the lid body 2 and the pot body 2.

[0103] In one example, the lid 3 also includes a removable lid assembly 13. The removable lid assembly 13 is located below the lid body 8 and is detachably connected to the lid body 8 as a component, thus being detachably mounted on the lid 3 from below. When cleaning the removable lid assembly 13 is required, it can be removed from the lid 3. Specifically, the removable lid assembly 13 is located below or inside the liner 9 and is detachably connected to the liner 9. For example, the removable lid assembly 13 is movably connected to the liner 9 via a plug-in and / or snap-fit ​​structure. The removable lid assembly 13 basically includes a lid plate 14, a lid seat 15, and the aforementioned pot opening sealing ring 7. The lid plate 14 may be a metal plate. At least a portion of the lower surface of the lid plate 14 forms the top surface of the cooking cavity. The lid seat 15 enables the lid plate 14 to be detachably connected to the liner 9. The lid plate 14 can be connected to the lid seat 15 by other suitable means such as snaps or fasteners. A portion of the pot opening sealing ring 7 is pressed between the cover plate 14 and the cover plate seat 15.

[0104] In another alternative example, the cover 3 includes the aforementioned cover plate 14, which is fixedly connected to the cover body 8, specifically to the liner 9, so that the cover plate 14 is non-removably mounted on the cover 3.

[0105] The pot body 2 basically includes 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 a suitable method such as snap-fit, fastener connection such as screws, or bonding. The lower end of the outer shell 16 can also be connected to the upper end of the base 18 by a suitable method such as snap-fit, fastener connection such as screws, or bonding. The outer shell 16, the middle plate 17, and the base 18 together form the inner pot storage area. The inner pot heating device 5 can be disposed between the base 18 and the bottom of the inner pot 4 and connected to the base 18, hence it is also called a bottom heating device. Optionally, another inner pot heating device can be disposed between the outer shell 16 and the side of the inner pot 4, hence it is also called a side heating device.

[0106] The cooking appliance 1 of this application also has a top-heating function, whereby the heat generated by the top heat source can radiate to the food inside the cooking cavity to heat the food from the top side. Specifically, the cover 3 includes an infrared heating device 100 for radiating infrared rays into the cooking cavity during the cooking process. The infrared rays radiated into the cooking cavity can effectively heat the surface food, making the food evenly heated, thereby stimulating the aroma of the food.

[0107] The cooking appliance 1 of this application also has a steam supplementary cooking function. High-temperature steam can be delivered into the cooking cavity to heat and moisten the food inside. For example, during the heat preservation stage, high-temperature steam can be introduced into the cooking cavity to keep foods such as rice moist and prevent them from drying out and turning yellow. Specifically, the cooking appliance 1 also includes a steam generator 40 for generating supplementary cooking steam to supplement the cooking cavity. In order to deliver the supplementary cooking steam to the cooking cavity, the cover 3 is provided with a supplementary cooking steam supply channel P11 communicating with the cooking cavity. The supplementary cooking steam supply channel P11 is used for the passage of steam for supplementary cooking of the cooking cavity. Specifically, it can receive supplementary cooking steam from the steam generator 40 and deliver supplementary cooking steam to the cooking cavity.

[0108] The steam generating device 40 can be located on the lid 3 or the pot body 2. Figure 4 An example of a steam generator 40 disposed in the pot body 2 is shown schematically. Figure 4 As shown, the steam generating device 40 basically includes a water container 41 and a water container heating device 42. The water container 41 is disposed in the pot body 2 and is capable of storing water for generating supplementary cooking steam. Optionally, the water container 41 is located within the receiving cavity of the pot body 2, and its top protrudes from the upper surface of the pot body 2 to facilitate 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 supplementary cooking steam to escape. The water container heating device 42 is typically disposed below the water container 41 and is used to heat the water in the water container 41 to generate supplementary cooking steam. This supplementary cooking steam can enter the supplementary cooking steam supply channel P11 and then enter the cooking cavity to keep food such as rice in the inner pot 4 moist. When the steam generating device 40 is disposed in the lid 3, the placement and structure of the water container 41 and the water container heating device 42 are the same as... Figure 4 The examples shown are different.

[0109] When cooking, the food and water in the inner pot 4 of the cooking appliance 1 generate cooking steam. To vent this cooking steam to the outside environment, such as... Figure 5 As shown, the cover 3 is also provided with a cooking steam exhaust channel P12 and a steam exhaust channel P2 for the steam discharged from the cooking chamber to pass through. The cooking steam exhaust channel P12 is connected to the cooking chamber and the steam exhaust channel P2. The cooking steam can first enter the cooking steam exhaust channel P12 and then be discharged to the external environment through the steam exhaust channel P2.

[0110] For the infrared heating device 100, one example is that the infrared heating device 100 can be an infrared electric heating tube. For example, an infrared heating element is encapsulated in a glass tube to form an infrared electric heating tube. In this example, the cover 3 also includes a light-transmitting isolation plate disposed below the infrared electric heating tube. An alternative example is that the infrared heating device 100 can be an electrically conductive electric heating film arranged on a plate-like member. In this example, the plate-like member used to arrange the electric heating film is at least partially light-transmitting. Another alternative example, referring to the illustrated example, is that the infrared heating device 100 includes a radiating plate 110 and a heating assembly 120 for heating the radiating plate 110. The radiating plate 110 can block the heating assembly 120, and is therefore also called an opaque isolation plate. The heat generated by the heating assembly 120 can be transferred to the radiating plate 110, and the radiating plate 110 can radiate infrared rays into the cooking cavity after being heated. The radiating plate 110 can be a ceramic plate, a carbon plate made of carbon material, etc. A light-transmitting isolation plate can be disposed below the radiating plate 110. Alternatively, the radiant plate 110 is exposed inside the cooking cavity, with at least a portion of its lower surface forming the top surface of the cooking cavity; more specifically, at least a portion of the radiant plate 110 forms the top wall of the cooking cavity. The temperature of the radiant plate 110 can be controlled by controlling the power or heating temperature of the heating assembly 120.

[0111] Using the illustrated example, the structure of cover 3 will be further described. For example... Figure 3 and 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 at least partially transparent. The cover plate 14 is partially provided with a cover plate through-hole 21 that constitutes a light-transmitting area. 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 can be made entirely of a light-transmitting material such as glass, in which case the entire structure constitutes a light-transmitting area, or the portion corresponding to the radiating plate 110 can be made of a light-transmitting material. In this case, the light-transmitting portion constitutes a light-transmitting area. Alternatively, the cover plate 14 can serve as an isolation plate. Alternatively, the radiating plate 110 can be fixedly mounted on the removable cover assembly 13, in which case the radiating plate 110 serves as a cover plate.

[0112] like Figure 6 and Figure 7As 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 radiating 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 radiating plate 110 and restrict the horizontal movement of the radiating plate 110, facilitating the fixation of the radiating plate 110. In one example, the support portion 22 can be recessed downward, and the radiating 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 radiating plate 110 to form a seal between the radiating plate 110 and the inner liner 9. The infrared 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 radiating 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.

[0113] Additionally, the cover 3 may also include a through-hole sealing ring 23. The through-hole sealing ring 23 can be disposed at the edge of the through-hole 21 of the cover plate and located between the radiating plate 110 and the inner liner 9, abutting against the lower surface of the radiating 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 radiating 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.

[0114] The shapes of the liner through-hole 20, the cover plate through-hole 21, the support portion 22, and the through-hole sealing ring 23 correspond to the shape of the radiant plate 110. For example, the radiant plate 110 may have a clearance notch 111, and the liner 9 may have a protrusion 25 protruding towards the center of the liner through-hole 20, the protrusion 25 engaging with the clearance notch 111. A portion of the steam passage P1 may be located on the protrusion 25. With this design, the area of ​​the radiant plate 110 can be designed to be larger, and the steam passage P1 can be arranged on one side of the radiant plate 110, specifically the rear side, with an appropriate area proportion. Here, the steam passage P1 includes the aforementioned supplementary steam supply passage P11 and / or cooking steam exhaust passage P12. Correspondingly, the cover plate 14 also has a protrusion 25, and the protrusions 25 of both the cover plate 14 and the liner 9 are vertically aligned.

[0115] To simplify the structure and optimize the use of space within the cover 3, this application uses a single component to form the supplementary steam supply channel P11 and the cooking steam exhaust channel P12, instead of using separate components to form these two channels. Specifically, the cover 3 also includes a steam channel assembly 200 for forming the supplementary steam supply channel P11 and the cooking steam exhaust channel P12. The steam channel assembly 200 is located on the upper side of the cover plate 14 and the lower side of the inner liner 9. The steam channel assembly 200 is located on one side of the infrared heating device 100, specifically on the rear side of the infrared heating device 100. Figure 8 As shown, the liner 9 has a recess 26 for receiving the steam passage assembly 200. The recess 26 is located behind the liner through-hole 20 and is recessed upward from the lower surface of the liner 9. At least a portion of the steam passage assembly 200 is received within the recess 26. The size and shape of the recess 26 are adapted to the outer contour of the steam passage assembly 200.

[0116] like Figure 9 , Figure 10 and Figure 11 As shown, the steam passage assembly 200 also includes a steam inlet 201 and a steam outlet 202 connected to the supplementary cooking steam supply passage P11. The steam inlet 201 is used to receive steam from the steam generator 40, and the steam outlet 202 is used to connect the supplementary cooking steam supply passage P11 to the cooking chamber. The location of the steam inlet 201 corresponds to the outlet of the water container 41, specifically located above the water container 41. Figure 4 The steam inlet flow path is schematically marked with arrows. Specifically, the steam generated after the water in the water container 41 is heated enters the supplementary cooking steam supply channel P11 through the steam inlet 201, flows along the supplementary cooking steam supply channel P11 and enters the cooking chamber through the supplementary cooking steam outlet 202.

[0117] The steam passage assembly 200 also includes a cooking steam inlet 203 and a cooking steam outlet 204 communicating with the cooking steam exhaust passage P12. The cooking steam inlet 203 connects the cooking steam exhaust passage P12 to the cooking chamber, and the cooking steam outlet 204 discharges steam from the cooking steam exhaust passage P12. The cover body 8 includes the aforementioned exhaust passage P2. The cooking steam outlet 204 is located corresponding to the exhaust passage P2 of the cover body 8. The cover plate 14 also includes a steam valve 27 and a steam seal 28 forming the exhaust passage P2, both of which are vertically inserted into the cover body 8. The steam seal 28 is inserted into the upwardly protruding cylindrical wall 37 of the cover body 8, abutting against the bottom of the steam valve 27 and against the upper surface of the steam passage assembly 200. Figure 5The steam flow path is schematically marked with arrows. Specifically, the steam in the cooking chamber enters the cooking steam exhaust channel P12 through the cooking steam inlet 203, flows along the cooking steam exhaust channel P12, and flows through the cooking steam outlet 204 to the exhaust channel P2, and is then discharged to the external environment.

[0118] The steam passage assembly 200 includes a passage base shell 205 and a passage top plate 206. The passage top plate 206 is located above the passage base shell 205 and can cover the passage base shell 205. A steam seal 28 abuts against the upper surface of the passage top plate 206. The outer peripheral contours of the passage base shell 205 and the passage top plate 206 correspond in shape and size, and the figure schematically shows that the outer peripheral contours of the passage base shell 205 and the passage top plate 206 are approximately triangular.

[0119] The bottom shell 205 is connected to the top plate 206, forming a supplementary steam supply passage P11 and a cooking steam exhaust passage P12 between them. Specifically, a portion of these two steam passages P1 is formed by the bottom shell 205 or components thereon, while another portion is formed by the top plate 206 and components thereon. The steam passage assembly 200 includes two passage seals, namely a supplementary steam passage seal and a cooking steam passage seal 207, used to form seals at the supplementary steam supply passage P11 and the cooking steam exhaust passage P12, respectively. As an example, the supplementary steam supply passage P11 and the cooking steam exhaust passage P12 are located in different areas of the bottom shell 205. In this example, the bottom shell 205 forms the bottom wall of these two steam passages P1, and the two passage seals are clamped at different locations on the passage walls, thereby the bottom shell 205 and the top plate 206 enclose these two steam passages P1. Alternatively, the bottom shell 205 of the passage is provided with a pressure plate, which forms the bottom wall of the two steam passages P1; in this embodiment, the pressure plate can be used to fix the passage seal, which abuts against the top plate 206 of the passage. Thus, the pressure plate, the passage seal, and the top plate 206 of the passage form the two steam passages P1.

[0120] Another example is, such as Figure 9As shown, the supplementary steam supply channel P11 is located inside the cooking steam exhaust channel P12. In this example, the bottom shell 205 or its bottom wall component forms the bottom wall of the cooking steam exhaust channel P12, thereby forming the cooking steam exhaust channel P12 with the top plate 206. The steam channel assembly 200 also includes a groove-shaped supplementary steam channel component 208, which is located between the bottom shell 205 and the top plate 206. The supplementary steam channel component 208 on the bottom shell 205 forms the bottom wall and peripheral sidewall of the supplementary steam supply channel P11, thereby forming the supplementary steam supply channel P11 with the top plate 206. In the illustrated example, the supplementary steam channel component 208 is entirely made of sealing material, thus providing a sealing function and can also be referred to as a channel seal. The supplementary steam channel component 208 forms an internal seal. The cooking steam passage seal 207 is disposed between the outer periphery of the passage bottom shell 205 and the passage top plate 206 to form an external seal.

[0121] In the illustrated example, the supplementary steam passage component 208 can be independently fixed to the passage bottom shell 205. Eliminating the need for a pressure plate with a fixing sealing ring reduces the number of components, simplifies the structure and assembly process, and facilitates the effective utilization of the internal space of the cover 3, as well as improving assembly efficiency. In an alternative example, the supplementary steam passage component 208 has a pressure plate inside, which presses the bottom wall of the supplementary steam passage component 208 tightly against the passage bottom shell 205. Its side peripheral wall, together with the pressure plate, forms most of the supplementary steam supply passage P11. The top of this side peripheral wall abuts against the lower bottom surface of the passage top plate 206, thus constituting the entire supplementary steam supply passage P11. The pressure plate is preferably made of a rigid metal material that is not prone to rust. Near the supplementary steam outlet, fasteners are used to connect the pressure plate, the bottom wall of the passage bottom shell, and the cover plate of the removable cover assembly.

[0122] In the example where the bottom shell 205 forms the bottom wall of the steam passage P1, the bottom shell 205 is provided with a channel wall 209 extending upward from the upper surface of the bottom shell 205, and the channel wall 209 surrounds the peripheral sidewall of the steam passage P1.

[0123] The cover plate 14, forming the top wall of the cooking cavity, needs to be made of food-grade material. The channel bottom shell 205 and channel top plate 206 are independent components and can be manufactured using different materials than the cover plate 14. Components forming the steam channel P1, such as the channel bottom shell 205, channel top plate 206, bottom wall components, and / or supplementary steam channel components 208, are also made of food-grade material. This design eliminates the need for a cover body 8 to form the top wall of the steam channel P1, thus avoiding the need for a cover body 8 to be made of food-grade material and saving material costs.

[0124] The steam channel assembly 200 is at least partially mounted on the removable cover assembly 13, so that the steam channel assembly 200 is at least partially removed from the cover body 3 along with the removable cover assembly 13, allowing for cleaning of the two steam channels P1 on the steam channel assembly 200. The cover through-hole 21 is located near the front end 36a of the removable cover assembly 13. The steam channel assembly 200 is located near the rear end 36b of the removable cover assembly 13. The cover through-hole 21 and the steam channel assembly 200 can be arranged front and back, with the cover through-hole 21 in front and the steam channel assembly 200 in the back, allowing the cover through-hole 21 to be designed to occupy a larger cooking area R1. The cover 14 defines the cooking area R1 within the pot opening sealing ring 7, and the cover through-hole 21 is located within the cooking area R1 and occupies an area greater than 3 / 5 of the area of ​​the cooking area R1, for example, 8 / 10, 4 / 5, etc. The steam channel assembly 200 is located outside the area of ​​the cover through-hole 21.

[0125] In the illustrated example, at least the channel bottom shell 205 is mounted on the removable cover assembly 13, so that at least the channel bottom shell 205 can be removed from the cover body 3 together with the removable cover assembly 13. Specifically, the channel bottom shell 205 is connected to the removable cover assembly 13 to be removed from or installed onto the cover body 3 together with the removable cover assembly 13. Thus, at least the channel bottom shell 205 can be removed from the cover body 3 to allow for cleaning of the two steam channels P1. The channel top plate 206 can be separated from the channel bottom shell 205 to expose the interior of the steam channel P1 for better cleaning.

[0126] As illustrated, the top plate 206 of the passage is detachably connected to the bottom shell 205 of the passage, allowing it to be removed from or installed onto the cover 3 along with the bottom shell 205. When cleaning the steam passage P1 is required, the entire assembly consisting of the steam passage assembly 200 and the removable cover assembly 13 can be removed from the cover 3, and then the top plate 206 can be removed from the bottom shell 205. This exposes part of the steam passage P1 on the top plate 206 and part of the steam passage P1 on the bottom shell 205. The removable cover assembly 13 and the bottom shell 205, removed from the cover 3, can be washed with water by the user, and the top plate 206, removed from the cover 3, can be washed separately with water. The user can easily clean the steam passage P1 with good cleaning results.

[0127] Alternatively, the channel top plate 206 can be integrally designed with or detachably connected to the cover body 8. When it is necessary to clean the steam passage P1, the entire assembly consisting of the channel bottom shell 205 and the removable cover assembly 13 can be removed from the cover body 3. This exposes part of the steam passage P1 on the channel top plate 206 and part of the steam passage P1 on the channel bottom shell 205. The removable cover assembly 13 and the channel bottom shell 205, which are removed from the cover body 3, can be washed with water by the user, and the channel top plate 206, which remains on the cover body 3, can be wiped clean by the user. In this solution, the channel top plate 206 mates with the channel bottom shell 205 on the removable cover assembly 13 when the removable cover assembly 13 is installed on the cover body 3 to form a closed steam passage P1.

[0128] The bottom shell 205 of the channel is provided with the aforementioned supplementary steam outlet 202 and cooking steam inlet 203. The top plate 206 of the channel is provided with a cooking steam outlet 204. In other examples not shown, the cover plate 14 may be provided with the aforementioned supplementary steam outlet 202 and cooking steam inlet 203, and the bottom shell 205 of the channel is provided with a channel structure at the positions corresponding to the steam inlet 201 and the supplementary steam outlet 202. A sealing element is sandwiched between the channel structure and the cover plate 14. In the illustrated example where the steam generating device 40 is provided in the pot body 2, the bottom shell 205 of the channel is provided with the aforementioned steam inlet 201 to allow steam to enter from the bottom. In the example where the steam generating device 40 is provided in the cover body 3, the top plate 206 of the channel is provided with the aforementioned steam inlet 201 to allow steam to enter from the top.

[0129] See back Figure 6 and Figure 8 The cover 3 also includes a temperature measuring device 50 for detecting the temperature of the steam in the cooking chamber. The temperature measuring device 50 includes a temperature measuring element 51. The temperature measuring element 51 is located above the cooking steam inlet 203 and extends into the cooking steam exhaust channel P12. Specifically, the top plate 206 of the channel is provided with a temperature measuring hole 219, and at least a portion of the temperature measuring element 51 is placed in the cooking steam exhaust channel P12 through the temperature measuring hole 219.

[0130] The construction of the steam channel assembly 200 is further described below using the illustrated example.

[0131] like Figure 12 and Figure 13As shown, the bottom shell 205 extends beyond the rear of the cover plate 14 in both the longitudinal and transverse directions on the horizontal plane. Specifically, the steam passage assembly 200 spans across the cover plate 14 and the cover plate seat 15. The steam inlet 201 is located at the transverse side end 210 of the bottom shell 205. The steam generator 40 is located at the rear corner of the pot body 2, and the transverse side end 210 of the bottom shell 205 corresponds to the corner of the cover body 3. This allows the position of the steam inlet 201 to correspond vertically with the water container 41 of the steam generator 40, and steam enters the steam inlet 201 from bottom to top, resulting in a short and direct steam path between the steam inlet 201 and the water container 41. At least the supplementary cooking steam outlet 202 is located at the longitudinal front end 211 of the bottom shell 205. In the illustrated example, both the supplementary cooking steam outlet 202 and the cooking steam inlet 203 are located at the longitudinal front end 211 of the bottom shell 205. The cooking steam outlet 204 is spaced apart from the cooking steam inlet 203 in the longitudinal direction and is on the longitudinal centerline CL of the cover plate 14 / cover body 3.

[0132] The supplementary steam supply channel P11 has a supplementary steam outlet 202 at one end and a steam inlet 201 at the other end. In other words, the steam inlet 201 and the supplementary steam outlet 202 are located at opposite ends of the supplementary steam supply channel P11. Optionally, the supplementary steam supply channel P11 is a straight channel, with its centerline forming a preset angle with the centerline extending in the front-rear direction of the cover plate 14. Furthermore, the supplementary steam supply channel P11 is inclined relative to the longitudinal centerline CL of the cover plate 14. It should be noted that the longitudinal centerline CL of the cover plate 14 is parallel to the longitudinal centerline of the cover body 3, and their projections on the horizontal plane are collinear. In the example of the detachable cover assembly 13, the longitudinal centerlines of the cover plate 14 and the detachable cover assembly 13 are approximately parallel / collinear. It should be noted that the terms "longitudinal" and "longitudinal direction" used in this article refer to the front-to-back direction, and "lateral" and "lateral direction" refer to the left-to-right direction; "longitudinal centerline" refers to a straight line that extends in the longitudinal direction and passes through the center of the component. For example, the longitudinal centerline CL of the cover plate 14 extends in the longitudinal direction and passes through the center C3 of the cover plate 14.

[0133] like Figure 14As shown, to secure the channel bottom shell 205 to the detachable cover assembly 13, the cover plate seat 15 includes a plate-shaped seat support portion 29, which protrudes from the rear of the cover plate 14. The steam channel assembly 200 spans the cover plate 14 and the seat support portion 29. The channel bottom shell 205 can be connected to the seat support portion 29 by a suitable method such as channel welding or fastener connection such as screws. The detachable cover assembly 13 is provided with a supplementary steam docking cover 30, which can be closed onto the top opening of the water container 41 when the cover body 3 is closed. The supplementary steam docking cover 30 is also provided with a supplementary steam docking seal 31, which forms a seal between the water container 41 and the supplementary steam docking cover 30 when the cover body 3 is closed. The supplementary steam docking cover 30 is provided with a supplementary steam inlet 35, from which supplementary steam enters the supplementary steam supply channel P11. The steam docking cover 30 is connected to or integrally disposed on the near rear end 36b of the cover plate seat 15 (see...). Figure 13 The area is specifically located in the seat support part 29.

[0134] The top plate 206 of the passageway is detachably connected to the bottom shell 205 of the passageway via a snap-fit ​​structure. The snap-fit ​​structure includes a fixed snap-fit ​​212 and a movable snap-fit ​​213, corresponding to different sides of the steam passageway assembly 200. The fixed snap-fit ​​212 is connected to the bottom shell 205 and has a latch 214. The movable snap-fit ​​213 is rotatably connected to the support portion 29. The top plate 206 of the passageway has a first protrusion 215 that engages with the fixed snap-fit ​​212 and a second protrusion 216 that engages with the movable snap-fit ​​213. The first protrusion 215 can be engaged with the latch 214 of the fixed snap-fit ​​212, and the second protrusion 216 can be engaged from above by the movable snap-fit ​​213. The support portion 29 has upwardly protruding columns spaced apart, and the movable snap-fit ​​213 is rotatably connected to the columns. During assembly, first snap the first protrusion 215 into the slot 214 of the fixing buckle 212 to secure one side of the component; then rotate the movable buckle 213 to engage with the second protrusion 216 to secure the other side of the component. When disassembly is required, first unlock the movable buckle 213, and then separate the fixing buckle 212.

[0135] The cover plate 14 forms at least a portion of the top surface of the cooking cavity, and an inlet / outlet concentrated distribution area R is provided in this portion forming the top surface. Figure 11 and Figure 13The approximate location and shape of the inlet / outlet concentration area R are indicated by dashed lines. This area R houses the supplementary steam outlet 202 and the cooking steam inlet 203. Specifically, the area near the rear end 36b of the cover plate 14 contains the inlet / outlet concentration area R of the steam channel assembly 200. As illustrated, the channel bottom shell 205 has the inlet / outlet concentration area R located near the rear end 36b of the cover plate 14. This design cleverly concentrates the supplementary steam outlet 202 and the cooking steam inlet into a relatively small area, eliminating the need for separate seals and sealing structures at each outlet, simplifying manufacturing and assembly processes, and resulting in a more concise structure. The inlet / outlet concentration area R is located at the front end of the channel bottom shell 205 in the longitudinal direction.

[0136] Specifically, the bottom shell 205 of the passage includes a downwardly protruding steam passage 217, which has a steam outlet 218 for connecting the steam passage P1 to the cooking chamber. The steam outlet 218 includes a supplementary steam outlet 202 connected to the supplementary steam supply passage P11 and / or a cooking steam inlet 203 connected to the cooking steam exhaust passage P12. That is, the supplementary steam outlet 202 and / or the cooking steam inlet 203 are located in the steam passage 217. In the illustrated example, the inlet and outlet concentrated distribution area R is located in the steam passage 217, thus the supplementary steam outlet 202 and the cooking steam inlet 203 are located in the steam passage 217. The cover plate 14 has a steam passage hole 32, and the steam passage 217 can be inserted through and combined with the steam passage hole 32. The bottom shell 205 of the channel can be closer to the cover plate 14 at the downward protruding steam passage 217. The steam passage 217 is limited within the steam passage through hole 32. On the one hand, the steam passage 218 on the steam passage 217 can communicate with the cooking cavity. On the other hand, the cover plate 14 restricts the horizontal position of the bottom shell 205 at the steam passage 217, preventing the bottom shell 205 from moving horizontally relative to the cover plate 14.

[0137] The steam passage section 217 is located at the front end 211 of the channel bottom shell 205 in the longitudinal direction. The design allows for better utilization of the longitudinal space of the steam channel assembly 200 to accommodate the longer steam channel P1, thus miniaturizing the longitudinal dimensions of the steam channel assembly 200. Consequently, the portion of the steam channel assembly on the cover plate 14 is smaller, and its area proportion is smaller. The steam passage section 217 is configured to fit the steam passage hole 32 in both shape and size. The structure between the steam passage section 217 and the cover plate 14 can be more compact, effectively limiting the horizontal movement of the channel bottom shell 205 relative to the cover plate 14. Additionally, it improves the overall appearance of the inner side of the cover 3.

[0138] The cover 3 also includes a steam passage cover 33 and a steam passage area seal 34. The steam passage cover 33 and the steam passage portion 217 are located on opposite sides of the cover plate 14, with the steam passage cover 33 positioned below the cover plate 14 to fix the steam passage portion 217 to the cover plate 14. The steam passage area seal 34 is disposed between one of the steam passage cover 33 and the steam passage portion 217 and the edge of the steam passage through hole 32. For example, as shown in the illustration, the steam passage area seal 34 is disposed between the cover plate 14 and the steam passage portion 217 to form a seal between the cover plate 14 and the steam passage portion 217. The steam passage portion 217 is located within the steam passage through hole 32 and connected to the steam passage cover 33, with the periphery of the steam passage cover 33 larger than the steam passage through hole 32. The edge of the steam passage through hole 32 can be clamped between the steam passage portion 217 and the steam passage cover 33, and the steam passage area seal 34 is clamped between the cover plate 14 and the steam passage portion 217. Optionally, the steam passage cover 33 is welded to the steam passage part 217. Alternatively, the steam passage cover 33 is connected to the steam passage part 217 by threads. Alternatively, the steam passage cover 33 is connected to the steam passage part 217 by fasteners.

[0139] The cover 3 has a bottom surface. For example... Figure 5 and Figure 6 As shown, the portion of the bottom surface of the lid inside the pot opening is the cooking area R1, and the portion of the bottom surface of the lid outside the pot opening is the peripheral area R10. (See also...) Figure 2 The bottom surface of the lid mainly includes the portion of the bottom surface of the lid formed by the bottom surface of the inner liner 9, the portion of the bottom surface of the lid plate 14, and the portion of the bottom surface of the lid seat 15. The lid plate 14 at least constitutes a part of the cooking area R1. The lid seat 15 is outside the pot opening, that is, within the perimeter area R10 of the lid bottom.

[0140] like Figure 6 , Figure 15 , Figure 16 As shown, the infrared heating device 100 forms an infrared radiation region R2 on the plane P where the pot opening is located, and the infrared radiation region R2 is located within the cooking region R1. The steam channel assembly 200 forms a steam channel region R3 on the plane P where the pot opening is located. The front end of the steam channel region R3 is located within the cooking region R1 so that the supplementary steam supply channel P11 and the cooking steam exhaust channel P12 are connected to the cooking cavity. It should be noted that the cooking region R1 includes the non-transparent region R11 of the cover plate 14 forming the top surface of the cooking cavity and the light-transmitting region R12 formed by the through hole 21 or light-transmitting part of the cover plate; the infrared radiation region R2 is the projection of the main body of the infrared heating device 100 on the plane P where the pot opening is located. Here, the main body refers to the structure used for the generation, concentration, reflection and / or heat insulation of infrared rays. For the illustrated example, the infrared radiation region R2 is the projection of the radiating plate on the plane P where the pot opening is located; the steam channel region R3 is the projection of the steam channel assembly 200 on the plane P where the pot opening is located.

[0141] It should be noted that when the cooking utensil 1 is placed on a horizontal surface and the lid 3 is closed, the plane P where the pot opening is located is basically parallel to the horizontal plane; the area of ​​the bottom surface of the lid at the inner liner 9 is also usually parallel to the horizontal plane. Therefore, the area of ​​the bottom surface of the lid at the inner liner 9 is basically parallel to the plane P where the pot opening is located. Thus, the infrared radiation area R2 and the steam channel area R3 can be understood as the projection of the area of ​​the bottom surface of the lid at the inner liner 9 onto the plane, or as the projection onto the plane P where the pot opening is located.

[0142] Figure 6 The approximate horizontal positions of the three regions—cooking zone R1, infrared radiation zone R2, and steam channel zone R3—are shown. Figure 15 The shape and position of the infrared radiation region R2 and the steam passage region R3 on a reference plane parallel to the plane P where the boiler opening is located are shown. Figure 16 The shapes and positions of the cooking area R1 and the infrared radiation area R2 on the reference plane are shown. Figure 15 and Figure 16 The arrows schematically indicate the location of the outer contours of these areas.

[0143] In the projection direction perpendicular to the plane where the pot opening is located, the infrared radiation area R2 has an area ratio SP1 on the cooking area R1, where SP1 > 1 / 2. For example, suitable values ​​for SP1 include 0.55, 0.6, 0.65, 0.7, and 0.75. The steam channel area R3 occupies a smaller portion of the cooking area R1, while the infrared radiation area R2 occupies more than half of the cooking area R1. The area of ​​the infrared radiation area R2 does not need to be reduced due to the addition of a supplementary steam supply channel P11 in the lid 3, thus allowing the infrared heating device 100 to radiate infrared rays over a large area into the cooking cavity, ensuring optimal cooking results.

[0144] The maximum area of ​​the infrared radiation region R2 is affected by the diameter of the steam channel assembly 200 and the pot opening; the area of ​​the infrared radiation region R2 is smaller than the area of ​​the pot opening and larger than the areas of other regions except for the steam channel region R3. For the example of an infrared heating tube, the minimum area of ​​the infrared radiation region R2 is affected by the diameter of the infrared heating tube; specifically, its minimum area is larger than the area of ​​the region with the diameter of the infrared heating tube.

[0145] The steam passage region R3 is located behind the infrared radiation region R2. The steam passage region R3 is adjacent to the rear end of the cover 3 and can be arranged parallel to the infrared radiation region R2 in the horizontal direction. The steam passage assembly 200 and the infrared heating device 100 occupy different areas of the cover 3 in the horizontal direction, improving the space utilization of the cover 3 in the horizontal direction. At least the area where the supplementary steam outlet 202 is located is located within the cooking region R1. Exemplarily, the steam passage region R3 includes an inlet / outlet concentrated distribution area R31. It should be noted that the inlet and outlet concentrated distribution area R31 on the steam passage area R3 is the projection of the inlet and outlet concentrated distribution area R on the cover plate 14 onto the plane where the boiler opening is located. Furthermore, these two inlet and outlet concentrated distribution areas R and R31 are located at different heights, and are distinguished by the designations R and R31. They can also be referred to as the first inlet and outlet concentrated distribution area R and the second inlet and outlet concentrated distribution area R31, respectively. In some embodiments, the inlet and outlet concentrated distribution area R on the cover plate 14 is on the plane where the boiler opening is located. In this case, the inlet and outlet concentrated distribution area R31 is the same as the inlet and outlet concentrated distribution area R, or in other words, the inlet and outlet concentrated distribution area R31 coincides with the inlet and outlet concentrated distribution area R. Figure 11 , Figure 13 The attached diagram shows, schematically, the overlapping of the concentrated import and export distribution areas R and R31, indicated by dashed lines.

[0146] The inlet / outlet concentration areas R and R31 are located within the cooking area R1. These areas are adjacent to the rear end of the lid 3, with R31 located behind the infrared radiation area R2. The supplementary steam outlet 202 and the cooking steam inlet 203 are concentrated within the inlet / outlet concentration area R. In the projection direction perpendicular to the plane of the pot opening, both the supplementary steam outlet 202 and the cooking steam inlet 203 are located within the inlet / outlet concentration area R31. In other words, the projections of the supplementary steam outlet 202 and the cooking steam inlet 203 onto the plane of the pot opening are both located within the inlet / outlet concentration area R31. This clever design of concentrating the supplementary steam outlet and the cooking steam inlet in a relatively small area facilitates the use of space at the rear of the lid 3 to arrange the steam channel assembly 200, allowing the steam channel area R3 to occupy a smaller portion of the cooking area R1, while the infrared radiation area R2 occupies a larger portion. Optionally, the area of ​​the inlet / outlet concentration areas R / R31 is 300–800 mm². 2 For example, 300mm 2 350mm 2 400mm 2 450mm 2 500mm 2 600mm 2 700mm 2 800mm 2Wait for appropriate values. The area occupied by the concentrated import / export distribution area R / R31 within the cooking area R1 should be set to less than 800 mm². 2 This allows for a larger cooking area to be reserved for the infrared heating device 100.

[0147] For example, as illustrated, the infrared radiation region R2 occupies the middle and / or periphery of the cooking region R1, excluding the rear. In the projection direction perpendicular to the plane of the pot opening, the infrared radiation region occupies the entire cooking region except for the areas where the supplementary steam outlet and cooking steam inlet are located (or, in other words, except for the inlet / outlet concentrated distribution area R31); for example, an example where the radiation plate is located on the removable cover assembly and serves as the cover. In this example, the area of ​​the infrared radiation region is large, allowing the infrared heating device to radiate infrared rays over a wide area of ​​the cooking cavity. The steam channel region R3 occupies the rear of the cooking region R1, thus the inlet / outlet concentrated distribution area R31 also occupies the rear of the cooking region R1. The supplementary steam supply channel P11 can extend from the rear of the cover plate 14 towards the rear of the cover body 3, which helps to reduce the area occupied by the steam channel region R3 in the cooking region R1; and shortens the extension path of the supplementary steam supply channel P11, thereby shortening the steam flow distance and allowing the steam to quickly reach the cooking cavity, avoiding energy loss.

[0148] As described above, the cover plate 14 has a light-transmitting area R12 for infrared light to pass through. The infrared radiation area R2 at least constitutes a part of the cooking area R1. For example, in the example of the cover plate through-hole 21, the bottom surface of the isolation plate or radiation plate 110 of the infrared heating device 100 constitutes a part of the cooking area R1; in the example where the isolation plate or radiation plate is the cover plate, the bottom surface of the isolation plate or radiation plate constitutes almost the entire cooking area. In the projection direction perpendicular to the plane P where the pot opening is located, the light-transmitting area R12 falls into the infrared radiation area R2 and occupies the middle and / or periphery of the cooking area R1, excluding the rear portion. The light-transmitting area R12 corresponds to the infrared radiation area R2 in shape and size. The light-transmitting area R12 is designed to have a large area to reduce the obstruction of infrared light by the cover plate 14. In the projection direction perpendicular to the plane P where the pot opening is located, the light-transmitting area R12 has an area ratio SP2 on the cooking area R1, where SP2 > 1 / 2. For example, SP2 can be a suitable value such as 0.55, 0.6, 0.65, 0.7, or 0.75. The light-transmitting area R12 occupies more than half of the cooking area R1 on the cover plate 14, reducing the obstruction of infrared rays by the cover plate 14. The light-transmitting area R12 is described below using the cover plate through hole 21 as an example.

[0149] The inlet and outlet concentration area R is located at the rear of the cover plate 14. The exhaust steam 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, and the cooking steam exhaust passage P12 extends from the rear of the cover plate 14 to the rear of the cover body 3. This arrangement results in a shorter extension path for the cooking steam exhaust passage P12, which is beneficial for the miniaturization of the cover body 3. The supplementary cooking steam outlet 202 is also located at the rear of the cover plate 14, and the supplementary cooking steam supply passage P11 extends from the rear of the cover plate 14 towards the rear of the cover body 3. This shortens the extension path of the supplementary cooking steam supply passage P11, which is also beneficial for the miniaturization of the cover body 3. Furthermore, in order to simplify the design structure of the cover plate 14, the supplementary steam outlet 202 is concentrated in the area where the cooking steam inlet 203 is located. These two steam outlets can be formed in one area of ​​the cover plate 14 by the same means. When the cover 3 is in the open state, the user can observe two steam outlets in one area on the inside of the cover plate 14. Compared with two steam outlets that are scattered in different areas, the solution of this application makes the user's perception better and the integrity of the inner appearance of the product better.

[0150] The inlet / outlet concentration distribution area R can be arranged on the longitudinal centerline CL of the cover plate 14, and the inlet / outlet concentration distribution area R31 can be arranged on a reference centerline parallel to the longitudinal centerline of the cover plate 14 / cover body 3. The reference centerline is on the plane where the pot opening is located and is collinear with the projection of the aforementioned longitudinal centerline onto the plane where the pot opening is located. On the one hand, it allows the steam entering through the supplementary steam outlet 202 to diffuse from the middle to the left and right sides in the lateral direction, resulting in more uniform steam diffusion and more effective wetting of large areas of food. On the other hand, it improves the overall appearance of the inner side of the cover body 3. Furthermore, it is more suitable for circular / elliptical cover plates with an arc-shaped rear, as the inlet / outlet concentration distribution area R is closer to the rear edge of the cover plate 14 in the lateral direction compared to the left and right sides, thus maximizing the utilization of the central space.

[0151] The inlet / outlet concentrated distribution areas R and R31 have an axisymmetric shape. The center of the inlet / outlet concentrated distribution area R is on the longitudinal centerline CL of the cover plate 14, and the center of the inlet / outlet concentrated distribution area R31 is on the aforementioned reference centerline. For example, the shapes of the inlet / outlet concentrated distribution areas R and R31 can be designed as circular, square, annular, semi-circular, elliptical, or other axisymmetric shapes as needed. The structural design can be improved by adjusting the shape of the areas, so that the structures adapted to the shape of the areas can have simple constructions. For example, the construction of the supplementary steam outlet 202 and the cooking steam inlet 203 is simple, improving the overall appearance of the inner side of the cover 3.

[0152] The area defined by the supplementary 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 centerline CL. It should be noted that the area defined by the supplementary steam outlet 202 refers to the area where the supplementary steam outlet 202 is planned to be located in the design; similarly, the area defined by the cooking steam inlet 203 refers to the area where the cooking steam inlet 203 is planned to be located in the design. When there is one or more supplementary steam outlets 202 and one or more cooking steam inlets 203, the area defined by each outlet is that outlet, with the first center C1 being the center of the supplementary steam outlet 202 and the second center C2 being the center of the cooking steam inlet 203. When there are two or more outlets, the area defined by each outlet includes all outlets. The supplementary steam outlet 202 primarily occupies the area of ​​the inlet / outlet concentrated distribution area R on one side of the longitudinal centerline CL, while the cooking steam inlet 203 primarily occupies the area of ​​the inlet / outlet concentrated distribution area R on the other side of the longitudinal centerline CL. Optionally, the supplementary steam outlet 202 and the cooking steam inlet 203 are located on opposite sides of the longitudinal centerline CL. This results in the supplementary steam outlet 202 occupying the area of ​​the inlet / outlet concentrated distribution area R on one side of the longitudinal centerline CL, and the cooking steam inlet 203 occupying the area of ​​the inlet / outlet concentrated distribution area R on the other side of the longitudinal centerline CL. The supplementary steam outlet 202 and the cooking steam inlet 203 each have a certain amount of space in the transverse direction, facilitating the design of the channel structure for the supplementary steam supply channel P11 and the cooking steam exhaust channel P12.

[0153] like Figure 15 As shown, the first center C1 has a first distance d1 from the longitudinal centerline CL, and the second center C2 has a second distance d2 from the longitudinal centerline CL, where d1 = d2. In the design, the size and shape of the supplementary steam outlet 202 and the cooking steam inlet 203 are designed based on their respective regional centers, with the distances from the regional centers to the longitudinal centerline CL being equal. This simplifies the structural design and improves the overall appearance of the inner side of the cover 3. The first center C1 and the second center C2 lie on a transverse reference line RL. The transverse reference line RL is a straight line extending in the transverse / left-right direction. This scheme simplifies the structural design and improves the overall appearance of the inner side of the cover 3. For the circular supplementary steam outlet 202 and cooking steam inlet 203, the center of the supplementary steam outlet 202 and the center of the cooking steam inlet 203 have a third distance d3, the radius of the supplementary steam outlet 202 is d4, and the radius of the cooking steam inlet 203 is d5, where d3 > d4 + d5. Therefore, there is a certain distance between the supplementary steam outlet 202 and the cooking steam inlet 203.

[0154] It should be noted that in some embodiments, the first center C1, the second center C2, and the longitudinal centerline CL can be considered to be substantially on the same plane, with the first distance d1 and the second distance d2 being the shortest distances on this plane, and the third distance d3 being a straight line connecting the two centers on this plane. In other embodiments, the first center C1, the second center C2, and the longitudinal centerline CL are not on the same plane. The first distance d1 can be understood as the shortest distance from the projection of the first center C1 onto the longitudinal centerline CL on the plane, and the second distance d2 has a similar understanding; the third distance d3 is the line connecting the projections of the two centers onto the same plane. Here, the plane is parallel to the plane containing the pot opening.

[0155] At least the shapes of the inlet / outlet concentrated distribution areas R and R31, the area defined by the supplementary steam outlet 202, and the area defined by the cooking steam inlet 203, correspond to the shape of the outer contour of the cover plate 14. For example, if the outer contour of the cover plate 14 is circular, the inlet / outlet concentrated distribution areas R and R31 are also circular, the area defined by the supplementary steam outlet 202 is circular, and the area defined by the cooking steam inlet 203 is circular. The structural design can be improved by adjusting the shape of the areas, resulting in a consistent and simple overall structure for the cover 3, and also enhancing the overall appearance of the inner side of the cover 3.

[0156] The infrared radiation area R2 and the steam channel area R3 are independent of each other and have a preset distance between them. The infrared heating device 100 and the steam channel assembly 200 occupy different spaces in the lid 3 in the horizontal direction, and there is an assembly distance between them, so that the installation structure can be set up independently using the assembly distance without affecting the assembly of each other. Optionally, in the direction of the plane P where the pot opening is located, the rear part of the outline of the infrared radiation area R2 forms a convex outline that protrudes towards the center of the cooking area R1, and the convex outline constitutes a clearance recess R4. This clearance recess R4 corresponds to the protrusion 25 on the liner 9 and the lid 14. In the projection direction perpendicular to the plane where the pot opening is located, the front end of the steam channel area R3 is partially located within the clearance recess R4. The infrared radiation area R2 and the steam channel area R3 can be arranged closer and more compactly, so that the area of ​​the infrared radiation area R2 meets the cooking requirements without significantly increasing the size of the lid 14 due to the addition of the steam channel assembly 200, which is beneficial to the miniaturization of the lid 3.

[0157] The inlet / outlet concentration area R31 is located at the front end of the steam channel area R3. The front end of the steam channel area R3 is partially located within the avoidance recess R4, and the area where the supplementary steam outlet 202 is located / the inlet / outlet concentration area R31 can also be at least partially located within the avoidance recess R4. The infrared radiation area R2 and the steam channel area R3 can be arranged closer and more compactly. The positions of the supplementary steam outlet 202 and the cooking steam inlet 203 can be closer to the infrared radiation area R2, avoiding a significant increase in the size of the cover plate 14 due to the addition of the supplementary steam outlet 202, thus facilitating the miniaturization of the cover plate 14. The curved design offers better space utilization and presents a simple and elegant inner structure of the cover 3 to the user, enhancing the user's visual experience and thus improving the user's overall experience.

[0158] At least a portion of the outer contour of the infrared radiation region R2, at least a portion of the contour of the cover plate through-hole 21, and at least a portion of the outer contour of the inlet / outlet concentrated distribution areas R and R31 correspond in shape to the outer contour of the cover plate 14. Exemplarily, the outer contour of the infrared radiation region R2 is constructed as a circle or an arc. In the illustrated example, the outer contours of both the avoidance recess R4 and the infrared radiation region R2 are arc-shaped, giving the infrared radiation region R2 an overall crescent-like shape. The cover plate through-hole 21 also forms a crescent-like shape. Exemplarily, the outer contours of the inlet / outlet concentrated distribution areas R and R31 are constructed as circles. This improves space utilization and presents a simple and elegant inner structure of the cover 3 to the user, enhancing the user's visual experience and thus improving the user experience. Alternatively, the outer contour of the infrared radiation region R2 can be set to a square, annular, semi-circular, elliptical, or other shapes.

[0159] The outline of the through-hole 21 in the cover plate and the concentrated distribution area R of the inlet and outlet are symmetrical with respect to the longitudinal centerline CL of the cover plate 14. The outer outlines of the infrared radiation area R2 and the concentrated distribution area R31 of the inlet and outlet are also symmetrical with respect to a reference centerline parallel to the longitudinal centerline of the cover plate 14 / cover body 3. This makes the structural design easier and improves the overall appearance of the inner side of the cover body 3. The center of the through-hole 21 in the cover plate and the center of the concentrated distribution area R of the inlet and outlet are arranged on the longitudinal centerline CL of the cover plate 14; the center of the infrared radiation area R2 and the center of the concentrated distribution area R31 of the inlet and outlet are arranged on the aforementioned reference centerline parallel to the longitudinal centerline CL of the cover plate 14. On the one hand, this allows the infrared rays to radiate to approximately the same area on both sides of the cooking cavity in the lateral direction, facilitating more even heating of food; and it allows high-temperature steam to diffuse from the center to the left and right sides in the lateral direction, resulting in more uniform steam diffusion and more even wetting of a large area of ​​food. On the other hand, it improves the overall appearance of the inner side of the cover body 3.

[0160] In the projection direction perpendicular to the plane P where the pot opening is located, the steam passage region R3 spans between the cooking region R1 and the periphery region R10 of the lid bottom. Specifically, the steam passage region R3 extends beyond the rear of the cooking region R1 in both the longitudinal and transverse directions. At least the rear end of the cooking steam exhaust passage P12 enters the portion of the steam passage region R3 that extends beyond the cooking region R1, and the cooking steam outlet 204 of the cooking steam exhaust passage P12 is located at the rear end of the steam passage assembly 200. The projection of the cooking steam outlet 204 onto the plane P where the pot opening is located extends beyond the cooking region R1, and the cooking steam exhaust passage P12 can extend from the upper side of the cooking region R1 toward the rear of the lid 3. Thus, the cooking steam exhaust passage P12 occupies a small area on the lid 14, and the projection of the cooking steam exhaust passage P12 onto the plane P occupies a small portion of the cooking region R1. The periphery region R10 of the lid has at least one corner. The steam channel assembly 200 has a supplementary steam inlet, which is located at the corner of the periphery region R10, so that the steam inlet 201 at the supplementary steam inlet is located at this corner. The steam channel region R3 is diagonally located between the cooking region R1 and the corner of the periphery region R10. At least the rear end of the supplementary steam supply channel P11 enters the corner of the steam channel region R3 that extends beyond the cooking region R1, and the steam inlet 201 of the supplementary steam supply channel P11 is located at the rear end of the supplementary steam supply channel P11. This allows the position of the steam inlet 201 to correspond vertically with the steam generator 40 at the corner of the pot body 2, and the steam enters the steam inlet 201 from bottom to top, making the steam path between the steam inlet 201 and the steam generator 40 shorter and more direct.

[0161] Optionally, the supplementary steam supply channel P11 extends along a straight line L inclined relative to the longitudinal centerline CL of the cover plate 14. The straight-line supplementary steam supply channel P11 further shortens the steam flow distance, allowing steam to quickly reach the cooking chamber and avoiding energy loss; structurally, it is easy to construct and occupies a small area in the steam channel region R3, which is beneficial for the miniaturization of the steam channel assembly 200. The straight line L containing the supplementary steam supply channel P11 has an angle α relative to the longitudinal centerline CL of the cover plate 14, where 45°≤α≤62°, and α is, for example, a suitable angle such as 45°, 46°, 48°, 50°, 52°, 54°, 56°, 58°, 60°, or 62°.

[0162] It should be noted that in some embodiments, the straight line L and the longitudinal centerline CL are on the same plane, and the included angle α is the angle within that plane; in other embodiments, the straight line L and the longitudinal centerline CL are not on the same plane, and the included angle α is the angle between the projection of the straight line L onto the plane containing the longitudinal centerline CL and the longitudinal centerline CL. The plane here is parallel to the plane containing the pot opening.

[0163] This design places the temperature sensing element 51 on the upper side of the cooking steam inlet 203 of the cooking steam exhaust channel P12. During cooking, the temperature sensing element 51 is protected from infrared heat, allowing it to accurately detect the steam temperature with higher precision. This enables rapid and precise temperature control, adjusting the heating temperature of the food and ensuring better taste. Furthermore, the design avoids the temperature sensing element 51 occupying the cooking area R1 on the cover plate 14, allowing for a larger infrared radiation area R2. The temperature sensing element 51 is also hidden inside the cover plate 14, resulting in a simpler and more elegant inner structure of the cover body 3.

[0164] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0165] This application has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative purposes. This application is not limited to the above embodiments. Many variations and modifications can be made based on the teachings of this application, and all such variations and modifications fall within the scope of protection claimed in this application.

Claims

1. A lid for a cooking utensil, the cooking utensil comprising the lid and a pot body containing an inner pot, the lid being closable and having a bottom surface such that, when closed, the bottom surface of the lid contacts the opening of the inner pot, forming a cooking cavity between the lid and the inner pot, characterized in that, The portion of the bottom surface of the lid inside the pot opening is the cooking area, and the portion of the bottom surface of the lid outside the pot opening is the perimeter area of ​​the lid bottom. The lid is equipped with a manual opening mechanism; the end of the lid with the manual opening mechanism is the front end, and the opposite end of the front end is the rear end. The cover includes: An infrared heating device, wherein the infrared heating device forms an infrared radiation area on the plane where the pot opening is located, and the infrared radiation area is located within the cooking area; and A steam channel assembly, wherein the steam channel assembly forms at least one supplementary steam supply channel for communicating with the cooking cavity, the steam channel assembly forms a steam channel area on the plane where the pot opening is located, and the supplementary steam outlet area of ​​the supplementary steam supply channel is located within the cooking area. In the projection direction perpendicular to the plane where the pot opening is located, the steam channel area spans between the cooking area and the periphery area of ​​the lid bottom.

2. The cover according to claim 1, characterized in that, The steam channel area is located near the rear end of the cover and is arranged in parallel with the infrared radiation area in the horizontal direction.

3. The cover according to claim 1, characterized in that, In the projection direction perpendicular to the plane where the pot opening is located, the infrared radiation area has an area ratio SP1 on the cooking area, where SP1>1 / 2.

4. The cover according to claim 1, characterized in that, In the projection direction perpendicular to the plane where the pot opening is located, the infrared radiation area occupies the entire area of ​​the cooking area except for the area where the supplementary steam outlet is located.

5. The cover according to claim 1, characterized in that, The infrared radiation area and the steam channel area are independent of each other and there is a preset distance between them.

6. The cover according to claim 1, characterized in that, In the direction of the plane where the pot opening is located, the rear part of the outline of the infrared radiation area forms a convex profile that protrudes toward the center of the cooking area; in the projection direction perpendicular to the plane where the pot opening is located, the projection of the area where the supplementary steam outlet is located is at least partially located within the projection of the avoidance recess formed by the convex profile.

7. The cover according to claim 6, characterized in that, Both the convex profile and the outer profile of the infrared radiation region are arc-shaped profiles.

8. The cover according to claim 1, characterized in that, The steam channel assembly also forms a cooking steam exhaust channel that communicates with the cooking chamber. The cooking steam inlet and the supplementary cooking steam outlet of the cooking steam exhaust channel are centrally located in an inlet-outlet distribution area, which is located at the rear of the cooking area.

9. The cover according to claim 8, characterized in that, The area of ​​the concentrated import and export distribution zone is 300-800 mm². 2 .

10. The cover according to claim 1, characterized in that, The periphery of the lid has at least one corner, and the steam channel assembly has a supplementary steam inlet, which is located at the corner. The steam channel area is diagonally located between the cooking area and the corner.

11. The cover according to claim 1, characterized in that, The steam supply channel for the supplementary cooking extends along a straight line inclined relative to the longitudinal centerline of the cover.

12. The cover according to any one of claims 1 to 11, characterized in that, The lid has a cover plate, and the infrared heating device is located on the upper side of the cover plate. The cover plate has a light-transmitting area for infrared rays to pass through. In the projection direction perpendicular to the plane where the pot opening is located, the light-transmitting area falls into the cooking area.

13. The cover according to claim 12, characterized in that, The light-transmitting area corresponds in shape and size to the infrared radiation area; and / or The cover plate has a cover plate through hole of a corresponding shape, or a light-transmitting part of a corresponding shape made of light-transmitting material; and / or In the projection direction perpendicular to the plane where the pot opening is located, the light-transmitting area has an area ratio SP2 on the cooking area, where SP2>1 / 2.

14. The cover according to any one of claims 1 to 11, characterized in that, The infrared heating device includes one of an infrared heating tube, an infrared heating film, and a radiant plate, wherein at least a portion of the lower surface of the radiant plate forms the top surface of the cooking cavity.

15. The cover according to any one of claims 1 to 11, characterized in that, The cover has a cover plate forming the bottom surface of the cover, the steam channel assembly is connected to the cover plate and includes a channel bottom shell and a channel top plate, the channel bottom shell is connected to the channel top plate and forms at least the supplementary cooking steam supply channel between them.

16. The cover according to claim 15, characterized in that, The cover also includes a cover body and a detachable cover assembly, the detachable cover assembly being detachably mounted on the cover body. The channel bottom shell is connected to the detachable cover assembly so as to be removed from or installed onto the cover body together with the detachable cover assembly; or The cover also includes a cover body, the cover plate is fixedly connected to the cover body, and the channel bottom shell is connected to the cover plate.

17. The cover according to any one of claims 1 to 11, characterized in that, The cover also includes a detachable cover assembly, which is detachably mounted on the cover and includes a cover plate and a cover plate seat; the cover plate seat is connected to the outer periphery of the cover plate, and the steam passage assembly spans the cover plate and the cover plate seat.

18. The cover according to claim 17, characterized in that, The cover plate seat forms a protruding seat support portion at the rear of the cover plate, and the steam passage assembly spans the cover plate and the seat support portion.

19. A cooking utensil, characterized in that, The cooking appliance includes a lid, a pot body, and a steam generating device according to any one of claims 1 to 18, wherein the lid is closable and disposed on the pot body to form a cooking cavity between the lid and the pot body, and the steam generating device is disposed on the lid or the pot body for supplying steam to the supplementary cooking steam supply channel.

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