Cover body and cooking utensil

Abstract

The utility model discloses a cover body and a cooking utensil, the cover body comprises a cover plate and a steam channel assembly, and at least part of the lower surface of the cover plate forms the top surface of a cooking cavity; the steam channel assembly is located on the upper side of the cover plate and at least forms a steam inlet channel, and the steam inlet channel is used for conveying steam to the cooking cavity; one of the cover plate and the steam channel assembly is provided with a steam inlet, the steam inlet is used for communicating the steam inlet channel with the cooking cavity, the steam inlet is located in the rear portion of the cover plate and comprises a first steam inlet, and the first steam inlet is obliquely arranged and faces the area below the center of the cover plate. The steam inlet is formed in the rear portion of the cover plate, the steam channel assembly occupies the upper side area of the rear portion of the cover plate, and the upper side area of other most of the cover plate is reserved, so that functional devices such as a top heating device can be arranged on the main area, corresponding to the cooking cavity, of the cover body by avoiding the steam channel assembly; steam can be sprayed to food in the central area of the inner pot, and it is effectively ensured that the food is moisturized optimally.

Description

TECHNICAL FIELD

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

[0002] The existing steam cooking appliances such as steam rice cookers generally have a steam generating device and a steam inlet channel for conveying steam generated by the steam generating device to a cooking cavity. In some steam cooking appliances, a steam inlet of the steam inlet channel is formed on a cover plate of a detachable cover assembly. The cover plate is generally a thin metal plate, and the steam inlet is arranged at the center of the cover plate and faces downward. In some steam cooking appliances, a member for forming the steam inlet channel penetrates a through hole at the center of the cover plate, and a steam inlet facing downward is formed on the bottom wall of the member. These steam cooking appliances all spray steam from the center of the cover plate to the cooking cavity, which occupies the central area of the cover plate and is not conducive to arranging functional devices such as a top heating device on the cover body.

[0003] Therefore, there is a need for a cover body and a cooking appliance to at least partially solve the above problems. SUMMARY

[0004] A series of simplified concepts are introduced in the summary part of the application, which will be further described in detail in the detailed description part. The summary part of the application does not mean to try to limit the key features and necessary technical features of the claimed technical solution, nor to try to determine the protection scope of the claimed technical solution.

[0005] To at least partially solve the above problems, the present application provides a cover body for a cooking appliance, the cooking appliance comprising the cover body and a pot body, the cover body being openably and closably arranged on the pot body to form a cooking cavity between the cover body and the pot body, the cover body comprising:

[0006] a cover plate, at least a part of a lower surface of the cover plate forming a top surface of the cooking cavity;

[0007] a steam channel assembly connected to the cover plate and forming at least a steam inlet channel for conveying steam to the cooking cavity;

[0008] wherein a steam inlet is arranged on the cover plate and / or the steam channel assembly, the steam inlet being used to communicate the steam inlet channel with the cooking cavity, the steam inlet being located at a rear portion of the cover plate and comprising a first steam inlet, the first steam inlet being arranged obliquely and facing a central lower area of the cover plate.

[0009] According to the present scheme, the steam inlet is arranged at the rear part of the cover plate, the steam passage assembly occupies the upper region of the rear part of the cover plate, and the upper region of the other part of the cover plate is reserved, including the upper region of the center of the cover plate, so that the functional device such as the top heating device can be arranged on the main region of the cover corresponding to the cooking cavity, avoiding the steam passage assembly. Furthermore, the steam inlet arranged at the rear part can be directed to the center of the inner pot, so that the steam can be sprayed to the food in the central region of the inner pot, effectively ensuring the best moisture retention of the food.

[0010] Optionally, the steam passage assembly comprises a steam exchange part, the cover plate is provided with a cover plate opening, the steam exchange part is arranged in the cover plate opening, and at least the steam inlet is arranged in the steam exchange part. According to the present scheme, the steam exchange part can be closer to the cover plate, so that at least the steam inlet on the steam exchange part can be communicated with the cooking cavity, and the steam exchange part is limited in the cover plate opening, so that the horizontal position of the passage bottom plate is limited by the cover plate at the steam exchange part, avoiding the horizontal movement of the passage bottom plate relative to the cover plate.

[0011] Optionally, the steam exchange part is provided with a steam inlet pipe extending in the vertical direction, the steam inlet is arranged in the lower wall of the steam inlet pipe, and the first steam inlet is inclined relative to the center line of the steam inlet pipe. According to the present scheme, the steam can generate a downward flow force when flowing along the steam inlet pipe in the vertical direction, so that the steam is sprayed out of the steam inlet, and the spray range of the steam from the first steam inlet can more easily reach the center of the inner pot.

[0012] Optionally, the center line of the first steam inlet and the center line of the steam passage have an included angle α, and the included angle α is in the range of 5°-80°. According to the present scheme, the spray area of the first steam inlet can fall in the center of the inner pot, and the moisture retention effect of the food is better.

[0013] Optionally, the steam exchange part comprises a lower wall with a predetermined thickness, the steam inlet is arranged in the lower wall, and the caliber of the steam inlet gradually increases in the steam inlet direction. According to the present scheme, the variable diameter design of the steam inlet can form a shape similar to a horn, the flow rate of the steam out of the steam inlet increases, and the spray area also increases, which is beneficial to the steam spraying to the food in a larger range, improving the moisture retention effect of the food.

[0014] Optionally, the lower wall is a convex wall convexly protruding from the lower surface of the steam exchange part, or the lower wall is a flat wall extending in the horizontal direction. According to the present scheme, the convex wall has a larger surface area in the cooking cavity, so that the first steam inlet can be easily arranged to be directed to the center of the inner pot, and the design difficulty of the first steam inlet is small; the flat wall is easier to construct, is convenient for production and manufacturing, and has less influence on the appearance of the inner side of the cover.

[0015] Optionally, the convex wall body is configured in an arc shape. According to the scheme, the convex wall body is designed in an arc shape, which can have more surface than that designed in a polygon shape, and the first steam inlet is easier to be arranged at a desired position and a larger steam injection area is easier to be obtained; in addition, the outer surface of the convex wall body is smooth, avoiding the risk of scratching the user.

[0016] Optionally, the steam passage assembly further forms a steam outlet passage for discharging steam in the cooking cavity, and one of the cover plate and the steam passage assembly is provided with a steam outlet opening for communicating the steam outlet passage with the cooking cavity. According to the scheme, the steam inlet passage and the steam outlet passage are formed by one assembly, which is simple in structure and has a higher space utilization in the cover body.

[0017] Optionally, the steam outlet opening is located on one side of the steam inlet opening in a transverse direction or on a rear side of the steam inlet opening in a longitudinal direction. The steam inlet opening and the steam outlet opening are respectively located on two sides of a longitudinal center line of the cover plate. According to the scheme, the first steam inlet opening can not face the lower area of the steam outlet opening, avoiding the steam entering from the first steam inlet opening from flowing out of the steam outlet opening.

[0018] Optionally, the steam inlet opening and the steam outlet opening are both arranged at a steam exchange portion of the steam passage assembly. According to the scheme, the steam inlet opening for inputting steam into the cooking cavity is arranged at a region at the rear of the cover plate together with the steam outlet opening for outputting steam from the cooking cavity, the steam inlet passage extends from the rear of the cover plate and extends towards the rear of the cover body, which shortens the extension path of the steam inlet passage and is beneficial to the miniaturization of the cover body.

[0019] Optionally, the steam inlet opening further comprises at least one second steam inlet opening, and the at least one second steam inlet opening has a different direction from the first steam inlet opening. According to the scheme, the steam is injected not only towards the position where the center of the inner pot is located, but also towards other different positions, so that the food in different regions of the inner pot is injected by the steam, improving the uniformity of the moisture retention of the food.

[0020] Optionally, the first steam inlet opening has a larger diameter than the second steam inlet opening. According to the scheme, the first steam inlet opening has a larger injection area, and more steam is required to meet the moisture retention effect of a large area of food.

[0021] Optionally, the cover body further comprises a top heating device located on the upper side of the cover plate, and the steam passage assembly is located at the rear of the top heating device in the horizontal direction. According to the scheme, the cooking appliance has the function of top heat radiation heating, and the heat generated by the top heat source can be radiated to the food in the cooking cavity to heat the food from the top side; the steam flows through the rear of the cooking cavity, and the top heating device can occupy more of the upper side of the cover plate to transmit heat to the cooking cavity in a large area, improving the heating efficiency and effect.

[0022] Optionally, the top heating device is an electric heating device, an electromagnetic heating device or an infrared heating device for radiating infrared rays to the cooking cavity. According to the present solution, the electric heating device is simple and has low manufacturing cost; the electromagnetic heating device has high thermal efficiency, is more energy-saving than the electric heating device, has fast heating speed and can quickly heat an object to a required temperature; the infrared heating can effectively heat the surface layer of food and make the food evenly heated, thereby exciting the aroma of the food.

[0023] Optionally, the top heating device comprises a radiation plate and a heating assembly for heating the radiation plate, the radiation plate radiates infrared rays to the cooking cavity after being heated. The cover plate is provided with an opening for the infrared rays to pass through, and the lower surface of the radiation plate exposed from the opening forms the top surface of the cooking cavity; or the cover plate is at least partially light-transmissive so that the infrared rays can pass through. According to the present solution, the upper side of the cover plate can be used to arrange the radiation plate so as to radiate a large range of infrared rays to the cooking cavity, thereby improving the heating efficiency and effect; in the solution in which the cover plate is provided with the opening, the radiation plate itself has a relatively high temperature, which can effectively prevent condensate water from being generated on the lower surface of the radiation plate; in the solution in which the cover plate is at least partially light-transmissive, the radiation plate is shielded by the cover plate, the structure of the inner side of the cover body is simple, and the overall appearance of the inner side of the cover body is better.

[0024] Optionally, the cover body further comprises a steam passage assembly, the steam passage assembly is located on the upper side of the cover plate and comprises a passage bottom plate and a passage top plate, the passage bottom plate is located on the lower side of the passage top plate and forms at least the steam inlet passage with the passage top plate. According to the present solution, two independent members that can be covered and uncovered are used as the basic members of the steam passage, one part of the steam passage is formed by the passage bottom plate or components thereon, and the other part is formed by the passage top plate, and the production and manufacturing of the steam passage assembly are easier.

[0025] Optionally, the passage bottom plate comprises a steam exchange portion protruding downward, and at least the steam inlet is arranged on the steam exchange portion of the passage bottom plate. According to the present solution, the steam exchange portion can be closer to the cover plate, so that at least the steam inlet on the steam exchange portion can be in communication with the cooking cavity.

[0026] Optionally, the cover body further comprises a cover main body and a detachable cover assembly, the detachable cover assembly is detachably mounted on the cover main body from the lower side and comprises the cover plate, and at least the passage bottom plate is connected with the detachable cover assembly so as to be detached from or mounted to the cover body together with the detachable cover assembly. According to the present solution, the passage bottom plate and the components connected therewith can be integrated with the detachable cover assembly and detached from the cover body together, so as to clean the steam passage.

[0027] According to another aspect of the present application, there is provided a cooking appliance comprising the cover, the pot body and the steam generating device according to any one of the above aspects, the cover is openably arranged on the pot body to form a cooking cavity between the cover and the pot body, and the steam generating device is arranged on the cover or the pot body to supply steam to the steam inlet passage.

[0028] According to the present application, the steam inlet is arranged at the rear of the cover plate, and the steam passage assembly occupies the upper side area of the rear of the cover plate, and the upper side area of the other part of the cover plate is reserved, including the upper side area of the center of the cover plate, so that the functional device such as the top heating device can be arranged on the main area of the cover corresponding to the cooking cavity. Furthermore, the steam inlet at the rear can be directed towards the center of the inner pot, so that the steam can be sprayed to the food in the center area of the inner pot, effectively ensuring the best moisture retention of the food. BRIEF DESCRIPTION OF DRAWINGS

[0029] The following drawings for the present application are hereby incorporated into the present application as part of the present application for the purpose of understanding the present application. The embodiments of the present application and the description thereof shown in the drawings are used to explain the principles of the present application.

[0030] In the drawings:

[0031] Figure 1 is a perspective view of the cooking appliance according to the present application, wherein the cover is in a closed state;

[0032] Figure 2 is Figure 1 is another perspective view of the cooking appliance shown in FIG. 1, wherein the cover is in an open state;

[0033] Figure 3 is Figure 1 is an exploded perspective view of the cooking appliance shown in FIG. 1;

[0034] Figure 4 is Figure 1 is a sectional view of the cooking appliance shown in FIG. 1, wherein the tangent line of the section plane is parallel to the line connecting the center line extending in the front-rear direction of the cover plate and the center line of the steam inlet passage;

[0035] Figure 5 is Figure 1 is another sectional view of the cooking appliance shown in FIG. 1, wherein the tangent line of the section plane is parallel to the center line extending in the front-rear direction of the cover;

[0036] Figure 6 is Figure 5 is an enlarged view of part A in FIG. 1;

[0037] Figure 7 is Figure 5 is an exploded perspective view of the top heating device and the inner liner shown in FIG. 1;

[0038] Figure 8 for Figure 5 a top heating device and a cover body shown in the perspective view;

[0039] Figure 9 for Figure 5 a steam channel assembly and a detachable cover assembly shown in the perspective exploded view;

[0040] Figure 10 for Figure 5 a steam channel assembly and a detachable cover assembly shown in the perspective view;

[0041] Figure 11 for Figure 5 a steam channel assembly and a detachable cover assembly shown in the bottom view;

[0042] Figure 12 for Figure 5 a steam channel assembly and a detachable cover assembly shown in the sectional view;

[0043] Figure 13 for Figure 5 a steam channel assembly and a detachable cover assembly shown in the top view with the channel top plate removed;

[0044] Figure 14 for Figure 5 a steam channel assembly and a detachable cover assembly shown in another perspective exploded view;

[0045] Figure 15 for Figure 4 an enlarged view of part B in FIG. 12;

[0046] Figure 16 for a bottom view of a steam channel assembly and a detachable cover assembly according to another example of the present application.

[0047] BRIEF DESCRIPTION OF DRAWINGS:

[0048] 1 cooking utensil 2 pot body

[0049] 3 cover body 4 inner pot

[0050] 5 inner pot heating device 6 pivot shaft

[0051] 7 pot opening sealing ring 8 cover body

[0052] 9 inner liner 10 face cover assembly

[0053] 11 user interaction area 12 torsional spring

[0054] 13 detachable cover assembly 14 cover plate

[0055] 15 cover plate seat 16 outer shell

[0056] 17 middle plate 18 base

[0057] 20 inner liner opening 21 cover plate opening

[0058] 22 support portion 23 opening seal ring

[0059] 24 pressure ring 25 protrusion

[0060] 26 recess 27 steam valve

[0061] 28 steam seal 29 seat support portion

[0062] 30 water container cover 31 outlet seal

[0063] 32 cover plate opening 33 fixing member

[0064] 34 cover plate seal 40 steam generating device

[0065] 41 water container 42 water container heating device

[0066] 50 temperature measuring device 51 temperature measuring element

[0067] 100 top heating device 110 radiation plate

[0068] 111 avoidance notch 120 heating assembly

[0069] 130 peripheral portion seal ring 140 fixing member

[0070] 200 steam passage assembly 201 steam inlet

[0071] 202 steam inlet 202a first steam inlet

[0072] 202b second steam inlet 203 steam outlet

[0073] 204 steam outlet 205 passage bottom plate

[0074] 206 passage top plate 207 passage seal

[0075] 208 steam inlet passage member 209 passage wall

[0076] 210 side end portion 211 front end portion

[0077] 212 fixed clasp 213 movable clasp

[0078] 214 clasp opening 215 first protrusion

[0079] 216 second protrusion 217 steam exchange portion

[0080] 218 steam exchange opening 219 temperature measuring hole

[0081] 220 lower wall body 221 steam inlet pipe

[0082] 222 communication column

[0083] P1 steam passage P11 steam inlet passage

[0084] P12 steam outlet passage P2 exhaust passage DETAILED DESCRIPTION

[0085] In the following description, numerous specific details are set forth to provide a more thorough understanding of the present application. However, it will be apparent to one of skill in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present application.

[0086] For a thorough understanding of the present application, reference is made to the following description taken in conjunction with the accompanying drawings. It is apparent that the application can be practiced without one or more of the specific details set forth herein. Certain terminology is used in the description and the claims that shall not be interpreted as limiting of the application. For example, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Further, the terms "comprises", "comprising", "includes", "including" and the like are to be construed as being inclusive (meaning and / or) unless specifically indicated otherwise.

[0087] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the example embodiments of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, it is to be understood that the terms "comprise", "comprising", "includes", "including", and the like, are to be construed in an inclusive, rather than an exclusive, sense, unless specifically indicated otherwise.

[0088] Numerical ordinals such as "first" and "second" as used in this application are merely identifiers and do not necessarily imply a particular order or sequence unless specifically stated otherwise. Also, use of the terms "first" and "second" do not imply the existence of a "second" unless the term "first" is used, and do not imply the existence of a "first" unless the term "second" is used.

[0089] It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like as can be used herein are made only for purposes of illustration and not as a limitation.

[0090] Now, exemplary embodiments according to this application will be described in greater detail by referring to the drawings. These exemplary embodiments can be implemented in various 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 present disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art.

[0091] As shown in Figures 1 to 5 , the present application provides a cooking appliance 1, which includes a pot body 2 and a cover body 3. The pot body 2 has an inner pot receiving portion in a cylindrical shape. An inner pot 4 can be fixedly arranged at the inner pot receiving portion, or can be freely put into or taken out of the inner pot receiving portion, to facilitate cleaning of the inner pot 4. The inner pot 4 is usually made of a metal material and has a circular opening on its upper surface, for containing materials to be heated, such as rice, soup, etc. The pot body 2 includes an inner pot heating device 5, such as a heating plate, for heating the inner pot 4.

[0092] It can be understood that the cooking appliance 1 according to the present application can be an electric rice cooker, an electric pressure cooker, or other cooking appliance 1, and the cooking appliance 1 can have various functions in addition to the function of cooking rice, such as cooking porridge, etc.

[0093] The cover body 3 has a shape substantially corresponding to that of the pot body 2. The cover body 3 is arranged on the pot body 2 in a manner that can be opened and closed. In one example, the cover body 3 is pivotally connected to the pot body 2 by a pivot shaft 6, and can be freely pivoted about a pivot axis defined by the pivot shaft 6 between a closed position and an open position relative to the pot body 2, to facilitate closing and opening of the pot body 2. In another example, the cover body 3 is connected to the pot body 2 by fasteners that cooperate with each other and are easy to detach, so that the two are tightly connected together during cooking, and are detached into two independent whole bodies during cleaning, for example. When the cover body 3 is closed on the pot body 2, it covers the inner pot 4, and a cooking cavity is formed between the cover body 3 and the inner pot 4. The cover body 3 usually also has a pot opening sealing ring 7, which can be made of rubber material, for example, and is arranged between the cover body 3 and the inner pot 4, to seal the cooking cavity when the cover body 3 is in the closed state.

[0094] It should be noted that the directional terms used herein in describing various components, parts, etc. of the cooking appliance 1, such as "upper", "lower", "upper side", "lower side", "upward", "downward", "upwardly", "downwardly", etc. are relative to the cooking appliance 1 in a horizontal placement, upright state, and with the cover body 3 in the closed state.

[0095] The cover body 3 basically comprises a cover main body 8. The cover main body 8 comprises an inner liner 9 and a face cover assembly 10. The face cover assembly 10 is arranged on the upper side or outer side of the inner liner 9 and can cover the inner liner 9. The upper surface of the face cover assembly 10 is provided with a user interaction area 11 for user operation. The inner liner 9 can be connected with the face cover assembly 10 by suitable means such as clamping, fastening by fasteners such as screws, bonding, etc. The pivot shaft 6 is arranged on the inner liner 9 and is sleeved with a torsion spring 12 so as to automatically open the cover.

[0096] In one example, the cover body 3 further comprises a detachable cover assembly 13. The detachable cover assembly 13 is arranged on the lower side of the cover main body 8 and is detachably connected with the cover main body 8 in the form of an assembly, so that the detachable cover assembly 13 is detachably mounted on the cover body 3 from the lower side. When the detachable cover assembly 13 needs to be cleaned, the detachable cover assembly 13 can be detached from the cover body 3. Specifically, the detachable cover assembly 13 is arranged on the lower side or inner side of the inner liner 9 and is detachably connected to the inner liner 9. For example, the detachable cover assembly 13 is movably connected to the inner liner 9 by a plug-in and / or clamping structure. The detachable cover assembly 13 basically comprises a cover plate 14, a cover plate seat 15, and the aforementioned pot opening sealing ring 7. The cover plate 14 can be optionally a metal plate. At least part of the lower surface of the cover plate 14 forms the top surface of the cooking cavity. The cover plate seat 15 can detachably connect the cover plate 14 to the inner liner 9. The cover plate 14 can be connected with the cover plate seat 15 by other suitable means such as buckling or fastening by fasteners. Part of the pot opening sealing ring 7 is pressed between the cover plate 14 and the cover plate seat 15.

[0097] In another alternative example, the cover body 3 comprises the aforementioned cover plate 14, which is fixedly connected to the cover main body 8, specifically to the inner liner 9, so that the cover plate 14 is non-detachably mounted on the cover body 3.

[0098] The pot body 2 basically comprises an outer shell 16, a middle plate 17 arranged on the upper side of the outer shell 16, and a base 18 arranged on the lower side of the outer shell 16. The lower end of the outer shell 16 can be connected with the outer periphery of the middle plate 17 by suitable means such as clamping, fastening by fasteners such as screws, bonding, etc. The lower end of the outer shell 16 can be connected with the upper end of the base 18 by suitable means such as clamping, fastening by fasteners such as screws, bonding, etc. The outer shell 16, the middle plate 17, and the base 18 together enclose an inner pot receiving portion. The inner pot heating device 5 can be arranged between the base 18 and the bottom of the inner pot 4 and connected to the base 18, so it is also called a bottom heating device. Alternatively, another inner pot heating device 5 can be arranged between the outer shell 16 and the side of the inner pot 4, so it is also called a side heating device.

[0099] 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. Specifically, the cover 3 includes a top heating device 100, which is located in the area of ​​the cover 3 corresponding to the inner pot 4. The heat generated by the top heating device 100 can be transferred towards the cooking cavity through heat radiation. The top heating device 100 can be any suitable heating device, such as an electric heating device, an electromagnetic heating device, or an infrared heating device. The electric heating device can be a suitable electric heating device such as an electric heating tube, an electric heating wire, or an electric heating film. The electromagnetic heating device includes an electromagnetic coil and a coil disk. The electromagnetic coil is wound on the coil disk. In this embodiment, the cover plate 14 below the coil disk is a metal component. The alternating magnetic field generated by the electromagnetic coil can act on the metal cover plate 14 below, causing the cover plate 14 to heat up and radiate heat into the cooking cavity. The illustrated example schematically shows that the top heating device 100 is an infrared heating device used to radiate infrared rays into the cooking cavity during the cooking process. The infrared rays radiated into the cooking cavity can effectively heat the surface of the food, ensuring even heating and thus enhancing its aroma.

[0100] The cooking appliance 1 of this application also has a steam heating 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 generating device 40 for generating steam. In order to deliver steam to the cooking cavity, the cover 3 is provided with a steam inlet channel P11 communicating with the cooking cavity. The steam inlet channel P11 can receive steam from the steam generating device 40 and deliver steam to the cooking cavity.

[0101] 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 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 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 steam. This steam can enter the steam inlet passage P11 and then into the cooking cavity to keep food such as rice moist in the inner pot 4. 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.

[0102] When the cooking appliance 1 is in use, heating food and water in the inner pot 4 will generate steam. In order to discharge the steam generated during cooking to the outside environment, the cover body 3 is provided with a steam outlet passage P12 and a steam discharge passage P2, as shown in Figure 5 The steam outlet passage P12 and the steam discharge passage P2 are in communication with the cooking cavity. Steam in the cooking cavity can first enter the steam outlet passage P12 and then be discharged to the outside environment through the steam discharge passage P2.

[0103] For the infrared heating device, one example is that the infrared heating device can be an infrared electric heating tube. For example, an infrared electric heating tube is formed by packaging an infrared heating element in a glass tube. In this example, the cover body 3 further comprises a light-transmissive isolation plate arranged below the infrared electric heating tube. Another alternative example is that the infrared heating device can be an electric heating film arranged on a plate-shaped member and capable of being powered. In this example, the plate-shaped member for arranging the electric heating film is at least partially light-transmissive. Another alternative example is that, as shown in the example, the infrared heating device comprises a radiation plate 110 and a heating assembly 120 for heating the radiation plate 110. The heating assembly 120 generates heat which is transferred to the radiation plate 110. The radiation plate 110 is heated and can radiate infrared rays to the cooking cavity. The radiation plate 110 can be a ceramic plate, a carbon plate made of carbon material, or the like. A light-transmissive isolation plate can be arranged below the radiation plate 110. Alternatively, the radiation plate 110 is exposed in the cooking cavity, at least part of the lower surface of the radiation plate 110 forms the top surface of the cooking cavity, and further, at least part of the radiation plate 110 forms the top wall of the cooking cavity. The temperature of the radiation plate 110 can be controlled by controlling the power or heating temperature of the heating assembly 120.

[0104] The structure of the cover body 3 is further described by taking the example as shown in the drawings. As shown in Figure 3 and Figure 7 The inner liner 9 is provided with an inner liner opening 20, and the radiation plate 110 is arranged at the inner liner opening 20. The cover plate 14 is arranged below the radiation plate 110. The cover plate 14 is partially provided with a cover plate opening 21. The cover plate opening 21 corresponds to the position of the radiation plate 110. In other words, the cover plate opening 21 is directly below the radiation plate 110. Infrared rays generated by the radiation plate 110 can be radiated toward the inner pot 4 through the inner liner opening 20 and the cover plate opening 21. Alternatively, the cover plate 14 is at least partially light-transmissive. The cover plate 14 can be entirely made of a light-transmissive material such as glass, or the portion corresponding to the radiation plate 110 is made of a light-transmissive material. In this case, the cover plate 14 serves as an isolation plate.

[0105] As shown in Figure 6 and Figure 7As shown, the inner liner 9 can be provided with a support portion 22. The support portion 22 is arranged around the inner liner opening 20, and forms a closed annular structure. The outer edge of the radiation plate 110 can be lapped on the bottom wall of the support portion 22 and abut against the side wall of the support portion 22. The support portion 22 can provide upward support to the radiation plate 110 and limit the movement of the radiation plate 110 in the horizontal direction, facilitating the fixation of the radiation plate 110. In one example, the support portion 22 can be concave downward, and the radiation plate 110 is accommodated in the concave support portion 22. In another example, the support portion 22 is a planar structure, i.e. not concave. The outer peripheral portion of the radiation plate 110 is sleeved with a peripheral sealing ring 130 to form a seal between the radiation plate 110 and the inner liner 9. The top heating device 100 further comprises a fixing member 140. The fixing member 140 can be connected with the inner liner 9, and the outer edge of the radiation plate 110 is clamped between the fixing member 140 and the support portion 22. The fixing member 140 is optionally arranged in an annular shape, which can be connected with the inner liner 9 by clamping, fastening by fasteners such as screws, welding or other suitable methods.

[0106] In addition, the cover body 3 can further comprise an opening sealing ring 23. The opening sealing ring 23 can be arranged at the edge of the cover plate opening 21 and between the radiation plate 110 and the inner liner 9, and abuts against the lower surface of the radiation plate 110. The formation of a seal at the cover plate opening 21 can prevent steam from entering the interior of the cover body 3 through the gap between the radiation plate 110 and the cover plate 14, thereby improving the sealing effect of the cover body 3. For example, a press ring 24 can be arranged to clamp a portion of the opening sealing ring 23 between the press ring 24 and the cover plate 14, and the press ring 24 can be fixed to the cover plate 14 by bendable clamping corners.

[0107] The shape of the inner liner opening 20, the shape of the cover plate opening 21, the shape of the support portion 22, the shape of the opening sealing ring 23 and the shape of the radiation plate 110 correspond to each other. In an example, the radiation plate 110 can be provided with an avoiding notch 111, and the inner liner 9 is provided with a protruding portion 25 protruding towards the center of the inner liner opening 20, and the protruding portion 25 is engaged with the avoiding notch 111. The cover plate 14 also has a protruding portion 25, and the protruding portions 25 of the cover plate 14 and the inner liner 9 correspond in position. A portion of the steam passage P1 can be arranged on the protruding portion 25. In this way, the area of the radiation plate 110 can be designed to be larger, and the steam passage P1 can also be arranged on one side of the radiation plate 110, specifically the back side, with a suitable area ratio. The steam passage P1 here includes the steam inlet passage P11 and / or the steam outlet passage P12 described above.

[0108] To simplify the structure and optimize the use of the space inside the cover 3, the steam inlet passage P11 and the steam outlet passage P12 are formed by one component instead of different components. Specifically, the cover 3 further comprises a steam passage assembly 200 for forming the steam inlet passage P11 and the steam outlet passage P12. The two passages are independent of each other and not connected. The steam passage assembly 200 is located on the upper side of the cover plate 14 and the lower side of the inner liner 9. The steam passage assembly 200 is located on one side of the top heating device 100, specifically the rear side of the top heating device 100. As shown in Figure 8 The inner liner 9 has a recess 26 for accommodating the steam passage assembly 200. The recess 26 is located on the rear side of the inner liner opening 20 and is recessed upward from the lower surface of the inner liner 9. At least part of the steam passage assembly 200 is accommodated in the recess 26. The size and shape of the recess 26 are adapted to the outer contour of the steam passage assembly 200.

[0109] As shown in Figure 9 , Figure 10 and Figure 11 The steam passage assembly 200 is further provided with a steam supply port 201 and a steam inlet port 202 which communicate with the steam inlet passage P11. The steam supply port 201 is used to receive steam from the steam generating device 40, and the steam inlet port 202 is used to communicate the steam inlet passage P11 with the cooking cavity. The position of the steam supply port 201 corresponds to the outlet of the water container 41, specifically above the water container 41. Figure 4 The steam inlet flow path is schematically indicated by arrows. Specifically, the steam generated after the water in the water container 41 is heated enters the steam inlet passage P11 through the steam supply port 201, flows along the steam inlet passage P11, and enters the cooking cavity through the steam inlet port 202.

[0110] The steam passage assembly 200 is further provided with a steam outlet port 203 and a steam exhaust port 204 which communicate with the steam outlet passage P12. The steam outlet port 203 is used to communicate the steam outlet passage P12 with the cooking cavity, and the steam exhaust port 204 is used to exhaust the steam in the steam outlet passage P12. The cover body 8 is provided with the above-mentioned steam exhaust passage P2. The position of the steam exhaust port 204 corresponds to the steam exhaust passage P2 of the cover body 8. The cover plate 14 further comprises a steam valve 27 and a steam seal 28 which form the steam exhaust passage P2 and are vertically arranged in the cover body 8. The steam seal 28 is arranged at the bottom of the steam valve 27 and abuts against the upper surface of the steam passage assembly 200. Figure 5 The steam outlet flow path is schematically indicated by arrows. Specifically, the steam in the cooking cavity enters the steam outlet passage P12 through the steam outlet port 203, flows along the steam outlet passage P12, flows to the steam exhaust passage P2 through the steam exhaust port 204, and is then exhausted to the external environment.

[0111] The steam passage assembly 200 includes a passage base plate 205 and a passage top plate 206. The passage top plate 206 is located above the passage base plate 205 and can cover the passage base plate 205. A steam seal 28 abuts against the upper surface of the passage top plate 206. The outer peripheral contours of the passage base plate 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 plate 205 and the passage top plate 206 are approximately triangular.

[0112] A steam inlet passage P11 and a steam outlet passage P12 are formed between the bottom plate 205 and the top plate 206. Specifically, a portion of these two steam passages P1 is formed by the bottom plate 205 or components thereon, and another portion is formed by the top plate 206 and components thereon. The steam passage assembly 200 includes two passage seals 207, respectively used to form seals at the steam inlet passage P11 and the steam outlet passage P12. As an example, the steam inlet passage P11 and the steam outlet passage P12 are respectively located in different areas of the bottom plate 205. In this example, the bottom plate 205 forms the bottom wall of these two steam passages P1, thereby the bottom plate 205 and the top plate 206 enclose these two steam passages P1. Alternatively, the channel bottom plate 205 is provided with a bottom wall member for forming the bottom wall of the two steam channels P1; in this embodiment, the bottom wall member can be used to fix the channel seal 207 (described in detail below), which abuts against the channel top plate 206. Thus, the bottom wall member, the channel seal 207, and the channel top plate 206 enclose the two steam channels P1.

[0113] Another example is, such as Figure 9 As shown, the steam inlet passage P11 is located inside the steam outlet passage P12. In this example, the bottom plate 205 or its bottom wall component forms the bottom wall of the steam outlet passage P12, thereby the bottom plate 205 or its bottom wall component and the top plate 206 enclose the steam outlet passage P12. The steam passage assembly 200 also includes an inlet passage component 208, which is located between the bottom plate 205 and the top plate 206. The inlet passage component 208 on the bottom plate 205 forms at least the bottom wall of the steam inlet passage P11, thereby the inlet passage component 208 and the top plate 206 enclose the steam inlet passage P11.

[0114] In the example where the bottom wall of the steam passage P1 is formed by the bottom plate 205, the bottom plate 205 is provided with a channel wall 209 extending upward from the upper surface of the bottom plate 205, and the channel wall 209 surrounds the peripheral sidewall of the steam passage P1.

[0115] The cover plate 14 needs to be made of food grade material as it forms the top wall of the cooking cavity. The channel bottom plate 205 and the channel top plate 206 are separate components and can be made of different material from the cover plate 14. The components used to enclose the steam channels P1, such as the channel bottom plate 205, the channel top plate 206, the bottom wall component and / or the steam inlet channel component 208 are also made of food grade material. In this way, the top wall of the steam channels P1 can be formed without the cover body 8, so that the cover body 8 does not need to be made of food grade material, thereby saving material cost.

[0116] 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 together with the removable cover assembly 13 for cleaning the two steam channels P1 on the steam channel assembly 200. For the illustrated example, at least the channel bottom plate 205 is mounted on the removable cover assembly 13, so that at least the channel bottom plate 205 is removed from the cover body 3 together with the removable cover assembly 13. In particular, the channel bottom plate 205 is connected with the removable cover assembly 13 to be removed from or mounted to the cover body 3 together with the removable cover assembly 13. In this way, at least the channel bottom plate 205 can be removed from the cover body 3 for cleaning the two steam channels P1. The channel top plate 206 can be separated from the channel bottom plate 205 to expose the interior of the steam channels P1 for better cleaning of the interior of the steam channels P1.

[0117] For the illustrated example, the channel top plate 206 is detachably connected with the channel bottom plate 205 to be removed from or mounted to the cover body 3 together with the channel bottom plate 205. When the steam channels P1 need to be cleaned, the whole of the steam channel assembly 200 and the removable cover assembly 13 can be removed from the cover body 3, and then the channel top plate 206 can be detached from the channel bottom plate 205. In this way, part of the steam channels P1 on the channel top plate 206 are exposed, and part of the steam channels P1 on the channel bottom plate 205 are also exposed. The removable cover assembly 13 and the channel bottom plate 205 removed from the cover body 3 can be cleaned by the user with water, and the channel top plate 206 removed from the cover body 3 can be cleaned by the user with water separately. The user can easily clean the steam channels P1 with good cleaning effect.

[0118] Alternatively, the channel top plate 206 is connected with the cover body 8. The channel top plate 206 is covered on the channel bottom plate 205, and the two can be free of fixed connection. When the steam channel P1 needs to be cleaned, the channel bottom plate 205 and the detachable cover assembly 13 as a whole can be detached from the cover body 3. In this way, part of the steam channel P1 on the channel top plate 206 is exposed, and part of the steam channel P1 on the channel bottom plate 205 is also exposed. The detachable cover assembly 13 and the channel bottom plate 205 detached from the cover body 3 can be cleaned by the user with water, and the channel top plate 206 retained on the cover body 3 can be cleaned by the user with water. In this scheme, the channel top plate 206 is butted with the channel bottom plate 205 on the detachable cover assembly 13 when the detachable cover assembly 13 is installed to the cover body 3, so as to form a closed steam channel P1.

[0119] The channel bottom plate 205 is provided with the steam inlet 202 and the steam outlet 203. The channel top plate 206 is provided with the steam discharge port 204. In other examples not shown, the cover plate 14 can be provided with the steam inlet 202 and the steam outlet 203, and the channel bottom plate 205 is provided with a channel structure at positions corresponding to the steam supply port 201 and the steam inlet 202. The channel structure is clamped with a sealing element between the cover plate 14. In the example shown in the figure, the steam generation device 40 is arranged in the pot body 2, and the channel bottom plate 205 is provided with the steam supply port 201 to introduce steam from the lower side. In the example in which the steam generation device 40 is arranged in the cover body 3, the channel top plate 206 is provided with the steam supply port 201 to introduce steam from the upper side.

[0120] Referring back to Figure 6 and Figure 8 , the cover body 3 further comprises a temperature measuring device 50 for detecting the temperature of the steam in the cooking cavity. The temperature measuring device 50 comprises a temperature measuring element 51. The channel top plate is provided with a temperature measuring hole 219, and at least part of the temperature measuring element 51 is arranged in the steam discharge channel P12 via the temperature measuring hole 219.

[0121] The structure of the steam channel assembly 200 will be further described below with reference to the example shown in the figure.

[0122] As Figure 12 and Figure 13As shown, the channel bottom plate 205 extends beyond the rear of the cover plate 14 in both the longitudinal and transverse directions on the horizontal plane, and the steam inlet 201 is located at the side end 210 of the channel bottom plate 205 in the transverse direction. The steam generator 40 is located at the rear corner of the pot body 2, and the side end 210 of the channel bottom plate 205 in the transverse direction 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, making the steam path between the steam inlet 201 and the water container 41 shorter and more direct. At least the steam inlet 202 is located at the front end 211 of the channel bottom plate 205 in the longitudinal direction. In the illustrated example, both the steam inlet 202 and the steam outlet 203 are located at the front end 211 of the channel bottom plate 205 in the longitudinal direction. The exhaust port 204 is spaced apart from the steam outlet 203 in the longitudinal direction and is located on the longitudinal centerline of the cover plate 14.

[0123] The steam inlet passage P11 extends from the steam supply port 201 to the steam inlet port 202; in other words, the steam supply port 201 and the steam inlet port 202 are located at opposite ends of the steam inlet passage P11. Optionally, the steam inlet passage P11 is a straight passage, and its centerline has a predetermined angle with the centerline extending in the front-rear direction of the cover plate 14. Furthermore, the steam inlet passage P11 is inclined relative to the longitudinal centerline of the cover plate 14. It should be noted that in the example of the removable cover assembly 13, the longitudinal centerlines of both the cover plate 14 and the removable cover assembly 13 are collinear.

[0124] It should be noted that the terms "longitudinal" and "longitudinal direction" used in this article refer to the front-to-back direction, while "lateral" and "lateral direction" refer to the left-to-right direction.

[0125] like Figure 14 As shown, to secure the channel base plate 205 to the removable 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 channel base plate 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 seat support portion 29 is also provided with a water container cover 30, which can be closed onto the top opening of the water container 41 when the cover body 3 is closed to the pot body 2. The water container cover 30 is also provided with an outlet seal 31 for forming a seal between the water container 41 and the water container cover 30 when the cover body 3 is closed.

[0126] The channel top plate 206 can be detachably connected to the channel bottom plate 205 through a buckle structure. The buckle structure includes a fixed buckle 212 and a movable buckle 213, which correspond to different side edges of the steam channel assembly 200 respectively. The fixed buckle 212 is connected to the channel bottom plate 205 and is provided with a buckle opening 214. The movable buckle 213 is rotatably connected to the seat support part 29. The channel top plate 206 is provided with a first protruding buckle 215 matched with the fixed buckle 212 and a second protruding buckle 216 matched with the movable buckle 213. The first protruding buckle 215 can be buckled into the buckle opening 214 of the fixed buckle 212, and the second protruding buckle 216 can be buckled from the upper side by the movable buckle 213. The seat support part 29 is spaced apart and provided with an upwardly protruding column, and the movable buckle 213 is rotatably connected to the column. When assembled, the first protruding buckle 215 is buckled into the buckle opening 214 of the fixed buckle 212 first, to realize the fixation of one side edge of the assembly; and then the movable buckle 213 is rotated to be buckled in the second protruding buckle 216, to realize the fixation of the other side edge of the assembly. When disassembled, the movable buckle 213 is unlocked first, and then the fixed buckle 212 is separated.

[0127] The channel bottom plate 205 includes a downwardly protruding steam exchange part 217, which is provided with a steam exchange opening 218 for communicating the steam channel P1 with the cooking cavity. The steam exchange opening 218 includes a steam inlet opening 202 communicated with the steam inlet channel P11 and / or a steam outlet opening 203 communicated with the steam outlet channel P12. That is, the steam inlet opening 202 and / or the steam outlet opening 203 are arranged on the steam exchange part 217. The illustrated example is that the steam inlet opening 202 and the steam outlet opening 203 are arranged on the steam exchange part 217. The cover plate 14 is provided with a cover plate opening 32, and the steam exchange part 217 is arranged in the cover plate opening 32. The channel bottom plate 205 can be closer to the cover plate 14 at the downwardly protruding steam exchange part 217, and the steam exchange part 217 is limited in the cover plate opening 21, which can on the one hand enable the steam exchange opening 218 on the steam exchange part 217 to communicate with the cooking cavity, and on the other hand limit the horizontal position of the channel bottom plate 205 at the steam exchange part 217, to avoid the horizontal movement of the channel bottom plate 205 relative to the cover plate 14.

[0128] The steam exchange part 217 is located at the front end part 211 of the channel bottom plate 205 in the longitudinal direction. In design, the steam channel assembly 200 in the longitudinal direction can be better utilized to arrange the steam channel P1 with a longer extension path, so as to miniaturize the steam channel assembly 200 in the longitudinal direction, so that the part of the steam channel assembly on the cover plate 14 has a smaller size and a smaller area ratio. The steam exchange part 217 is configured to be adapted in shape and size to the cover plate opening 32. The structure between the steam exchange part 217 and the cover plate 14 can be more compact, which is beneficial to effectively limiting the horizontal movement of the channel bottom plate 205 relative to the cover plate 14, and in addition, the overall appearance of the inner side of the cover body 3 can be improved in shape.

[0129] The cover body 3 further comprises a fixing member 33 and a cover plate seal 34. The fixing member 33 is located at the lower side of the cover plate 14 to fix the steam exchange portion 217 to the cover plate 14. The cover plate seal 34 is arranged between the cover plate 14 and the steam exchange portion 217 to form a seal therebetween. The steam exchange portion 217 is located within the cover plate aperture 32 and connected to the fixing member 33, the edge of the cover plate aperture 32 can be clamped between the steam exchange portion 217 and the fixing member 33, and the cover plate seal 34 is clamped between the cover plate 14 and the steam exchange portion 217. Alternatively, the fixing member 33 is welded to the steam exchange portion 217. Alternatively, the fixing member 33 is connected to the steam exchange portion 217 by screwing.

[0130] One of the prominent optimization improvements of the present application is that the steam inlet 202 is directed towards the location of the center of the inner pot 4.

[0131] As shown in Figure 2 , Figure 4 , Figure 12 , Figure 15 , the steam inlet 202 is located at the rear of the cover plate 14 and comprises a first steam inlet 202a. The first steam inlet 202a is obliquely arranged and directed towards the area below the center of the cover plate 14. By arranging the steam inlet 202 at the rear of the cover plate 14, the upper side area of the rear of the cover plate 14 is occupied by the steam passage assembly 200, and the upper side area of the other part of the cover plate 14 is reserved, including the upper side area of the center of the cover plate 14, so that the functional devices such as the top heating device 100 can be arranged on the main area of the cover body 3 corresponding to the cooking cavity without avoiding the steam passage assembly 200. Furthermore, the steam inlet 202 located at the rear can be directed towards the location of the center of the inner pot 4, so that the steam can be sprayed to the food located in the central area of the inner pot 4, effectively ensuring that the moisture retention of the food reaches the best. As mentioned above, the steam inlet 202 is arranged at the steam exchange portion 217 of the passage bottom plate 205. Alternatively, the steam inlet 202 can be arranged at the cover plate 14. It should be noted that the steam inlet 202 is the port or opening closest to the cooking cavity.

[0132] The steam exchange portion 217 comprises a lower wall 220 for arranging the steam inlet 202. In some examples, as shown in the example, the steam exchange portion 217 is provided with a steam inlet pipe 221 extending in the vertical direction, for example, a communication column 222 extending in the vertical direction can be arranged on the passage bottom plate 205, and the communication column 222 has the steam inlet pipe 221 therein. The steam inlet pipe 221 has the lower wall 220. The steam inlet 202 is arranged at the lower wall 220 of the steam inlet pipe 221, so that the steam inlet 202 communicates with the steam inlet pipe 221. The first steam inlet 202a is inclined relative to the center line of the steam inlet pipe 221. The steam can generate a downward flow force when flowing along the steam inlet pipe 221 in the vertical direction, so that the steam is sprayed out of the steam inlet 202, and the spray range from the first steam inlet 202a can more easily reach the location of the center of the inner pot 4.

[0133] As shown in Figure 15 , the center line of the first steam inlet 202a has an included angle a with the center line of the steam passage, and the included angle a is set in the range of 5°-80°. For example, the included angle a can be 5°, 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, etc. The jet area of the first steam inlet 202a can fall on the position where the center of the inner pot 4 is located, and the moisture retention effect of the food is better.

[0134] Optionally, the lower wall body 220 has a preset thickness t, which can be 1 mm or more, for example, t is 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, etc. The steam inlet 202 is opened in the lower wall body 220, and the caliber of the steam inlet 202 gradually increases along the steam direction. The variable diameter design of the steam inlet 202 can form a shape similar to a horn, the flow rate of the steam out of the steam inlet 202 increases, and the jet area also increases, which is beneficial to the steam to be sprayed to a larger range of food, and improves the moisture retention effect of the food.

[0135] The lower wall body 220 is a convex wall body protruding from the lower surface of the steam replacing part 217. The surface area of the convex wall body in the cooking cavity is large, and the first steam inlet 202a can be easily set to face the position where the center of the inner pot 4 is located, and the design difficulty of the first steam inlet 202a is small. The convex wall body is configured to be arc-shaped or other shapes such as polygonal. The convex wall body designed to be arc-shaped can have more surface than designed to be polygonal, and the first steam inlet 202a is more easily opened at the desired position and can easily obtain a larger jet area; in addition, the outer surface of the convex wall body is smooth, avoiding the risk of scratching the user. Alternatively, the lower wall body 220 is a straight wall body extending in the horizontal direction. The straight wall body is easier to construct, is convenient for production and manufacturing, and has less influence on the appearance of the inner side of the cover body 3.

[0136] Referring back to Figure 11 , the steam outlet 203 is located on one side of the steam inlet 202 in the transverse direction. Alternatively, the steam outlet 203 is located on the rear side of the steam inlet 202 in the longitudinal direction. Optionally, the steam inlet 202 and the steam outlet 203 are respectively located on both sides of the longitudinal center line of the cover plate 14. The positions of the two steam ports are thus arranged, so that the first steam inlet 202a can not face the lower area of the steam outlet 203, avoiding the steam entering from the first steam inlet 202a from flowing out of the steam outlet 203.

[0137] Optionally, the shapes of the steam inlet 202 and the steam outlet 203 can be any suitable shape such as circular, square, oval, etc. The number of steam inlets 202 is one, and if necessary or desired, the number of steam inlets 202 can be greater than one, such as two.

[0138] As shown in Figure 16As shown, the steam inlet 202 further comprises at least one second steam inlet 202b. The at least one second steam inlet 202b is oriented differently from the first steam inlet 202a. Exemplarily, the second steam inlet 202b is oriented straight downward; the second steam inlet 202b is downwardly inclined and oriented toward the rear of the cover plate 14 or toward either side of the lateral direction of the cover plate 14. In this way, steam is sprayed toward different locations in addition to the center of the inner pot 4, so that food in different areas of the inner pot 4 is sprayed by steam, improving the uniformity of food moisture. The illustrated example shows two or more second steam inlets 202b oriented differently.

[0139] The first steam inlet 202a has a larger spraying area, and more steam is required to satisfy the moisture effect of large-area food. Therefore, the diameter of the first steam inlet 202a needs to be larger than that of the second steam inlet 202b.

[0140] Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The features described in one embodiment can be applied to another embodiment, unless the features are not applicable or are otherwise stated.

[0141] The application has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and illustration, and the application is not limited to the above embodiments. According to the teachings of the present application, more variations and modifications can be made, which all fall within the scope of the application claimed.

Claims

1. A cover for a cooking appliance, the cooking appliance comprising the cover and a pot body, the cover being openably and closably disposed to the pot body to form a cooking cavity between the cover and the pot body, characterized in that, The cover body comprises: a cover plate, at least a lower surface of the cover plate forming a top surface of the cooking cavity; a steam channel assembly connected to the cover plate and forming at least a steam inlet channel for delivering steam to the cooking cavity; wherein the cover plate and / or the steam channel assembly is provided with a steam inlet port for communicating the steam inlet channel with the cooking cavity, the steam inlet port being located at a rear portion of the cover plate and comprising a first steam inlet port, the first steam inlet port being obliquely arranged and facing a central lower area of the cover plate.

2. The cover of claim 1, wherein The steam channel assembly comprises a steam exchange portion, the cover plate is provided with a cover plate opening, the steam exchange portion is arranged through the cover plate opening, and at least the steam inlet port is arranged on the steam exchange portion.

3. The cover of claim 2, wherein The steam exchange portion is provided with a steam inlet pipe extending in a vertical direction, the steam inlet port is arranged on a lower wall of the steam inlet pipe, and the first steam inlet port is obliquely arranged relative to a center line of the steam inlet pipe.

4. The cover of claim 3, wherein The center line of the first steam inlet port and the center line of the steam inlet channel form an included angle α, and the included angle α is in a range of 5°-80°.

5. The cover of claim 2, wherein The steam exchange portion comprises a lower wall with a predetermined thickness, the steam inlet port is arranged on the lower wall, and a diameter of the steam inlet port gradually increases in a steam inlet direction.

6. The cover of claim 5, wherein The lower wall is a convex wall convexly protruding from a lower surface of the steam exchange portion, or the lower wall is a flat wall extending in a horizontal direction.

7. The cover of claim 6, wherein The convex wall is configured in an arc shape.

8. The cover of claim 1, wherein The steam channel assembly further forms a steam outlet channel for discharging steam in the cooking cavity, and one of the cover plate and the steam channel assembly is provided with a steam outlet port for communicating the steam outlet channel with the cooking cavity.

9. The cover of claim 8, wherein The steam outlet port is located on one side of the steam inlet port in a transverse direction or on a rear side of the steam inlet port in a longitudinal direction, and / or the steam inlet port and the steam outlet port are respectively located on two sides of a longitudinal center line of the cover plate.

10. The cover of claim 8, wherein The steam inlet port and the steam outlet port are both arranged on the steam exchange portion of the steam channel assembly.

11. The cover of any one of claims 1 to 10, wherein, The steam inlet port further comprises at least one second steam inlet port, and an orientation of the at least one second steam inlet port is different from an orientation of the first steam inlet port.

12. The cover of claim 11, wherein, A diameter of the first steam inlet port is greater than a diameter of the second steam inlet port.

13. The cover of any one of claims 1 to 10, wherein, The cover body further comprises a top heating device located on an upper side of the cover plate, and the steam channel assembly is located at a rear side of the top heating device in a horizontal direction.

14. The cover of claim 13, wherein, The top heating device is an electric heating device, an electromagnetic heating device, or an infrared heating device for radiating infrared rays to the cooking cavity.

15. The cover of claim 13, wherein, The top heating device comprises a radiation plate and a heating assembly for heating the radiation plate, the radiation plate radiates infrared rays to the cooking cavity after being heated, wherein the cover plate is provided with an opening for infrared rays to pass through, a lower surface of the radiation plate exposed from the opening forms a top surface of the cooking cavity, or the cover plate is at least partially transparent to infrared rays.

16. The cover of any one of claims 1 to 10, wherein, The cover further comprises a steam passage assembly located on the upper side of the cover plate and comprising a passage bottom plate and a passage top plate, the passage bottom plate being located on the lower side of the passage top plate and forming at least the steam inlet passage with the passage top plate.

17. The cover of claim 16, wherein The passage bottom plate comprises a steam exchange portion protruding downward, and at least the steam inlet is provided on the steam exchange portion of the passage bottom plate.

18. The cover of claim 16, wherein, The cover further comprises a cover main body and a detachable cover assembly, the detachable cover assembly being detachably mounted on the cover main body from the lower side and comprising the cover plate, and at least the passage bottom plate being connected with the detachable cover assembly so as to be detached from or mounted to the cover together with the detachable cover assembly.

19. A cooking appliance characterized by, The cooking utensil comprises the cover according to any one of claims 1 to 18, a pot body, and a steam generating device, the cover being openably and closably arranged on the pot body to form a cooking cavity between the cover and the pot body, and the steam generating device being arranged on the cover or the pot body to supply steam to the steam inlet passage.

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