Cooking appliance

Abstract

The application discloses a cooking utensil, which comprises a pot body, a cover body and a temperature detection device. The cover body is arranged on the pot body in an openable and closable manner, and a food cooking cavity is formed between the cover body and the pot body. The cover body has a concentrated temperature detection space. The cover body is provided with a supplementary cooking steam supply channel and a cooking steam exhaust channel. The supplementary cooking steam supply channel is provided with a supplementary cooking steam outlet which is communicated with the food cooking cavity. The cooking steam exhaust channel is provided with a cooking steam inlet which is communicated with the food cooking cavity. The temperature detection device is used for detecting the temperatures of the supplementary cooking steam and the cooking steam at different time periods. The supplementary cooking steam outlet and the cooking steam inlet are arranged in the concentrated temperature detection space, and the temperature detection device is also arranged in the concentrated temperature detection space. The concentrated temperature detection space is a creative design of the working positions of the temperature detection device, the supplementary cooking steam outlet and the cooking steam inlet in a three-dimensional space, so that the number of parts is small, and the structure of the parts is simple and compact.

Description

Technical Field

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

[0002] Existing steam cooking appliances, such as steam rice cookers, typically have two independent steam channels on the lid. One channel is for steam inlet, delivering high-temperature steam from the steam source to the food cooking chamber, while the other channel is for steam outlet, allowing the steam inside the cooking chamber to escape to the outside environment. During the cooking stage, the high-temperature steam generated by the steam source is introduced into the food cooking chamber through the steam inlet channel to heat and moisten the food. The steam generated during cooking is discharged through the steam outlet channel to prevent excessive pressure inside the cooking chamber.

[0003] Typically, the lid also has two temperature measuring devices: one located in the steam inlet channel to detect the temperature of the high-temperature steam, and the other located in the steam outlet channel to detect the temperature of the steam generated during cooking. This results in the cooking appliance having two independent temperature measuring systems, each controlling the cooking temperature and process based on the temperature detected by its respective device. These two independent temperature measuring systems not only complicate the structure of the cooking appliance but also increase manufacturing costs.

[0004] Therefore, a cooking appliance is needed to at least partially solve the above problems. Utility Model Content

[0005] 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.

[0006] To at least partially solve the above problems, this application provides a cooking appliance, the cooking appliance comprising: pot body; A lid, which is openable and closable and forms a cooking cavity between the two, is provided with a centralized temperature sensing space, and has the following features: A supplementary cooking steam supply channel is provided for supplying supplementary cooking steam, and the supplementary cooking steam supply channel has a supplementary cooking steam outlet communicating with the food cooking chamber; and A cooking steam exhaust passage for allowing cooking steam to pass through, the cooking steam exhaust passage having a cooking steam inlet communicating with the food cooking chamber; A temperature detection device, wherein the temperature detection device is used to detect the temperature of the supplementary steam and the cooking steam at different time periods; The supplementary steam outlet and the cooking steam inlet are located in the centralized temperature detection space, and the temperature detection device is also located in the centralized temperature detection space.

[0007] According to this solution, the centralized temperature detection space is a creative three-dimensional spatial design of the working positions of the temperature detection device, the supplementary steam outlet, and the cooking steam inlet, achieving a small number of components and a simple and compact component structure. The temperature detection device can be used to detect the temperature of both the supplementary steam and the cooking steam, enabling accurate temperature detection of both. Furthermore, the cooking appliance can form a temperature measurement system that can simultaneously detect and control the temperature of both the supplementary steam and the cooking steam during the cooking process.

[0008] Optionally, the centralized temperature detection space refers to a space where the supplementary steam outlet is located adjacent to or next to the cooking steam inlet, and the distance between the temperature detection device and the supplementary steam outlet is approximately equal to the distance between the temperature detection device and the cooking steam inlet. According to this solution, the response speed of the temperature detection device to the supplementary steam is essentially the same as the response speed of the temperature detection device to the cooking steam, ensuring that the temperature detection conditions for the supplementary steam are essentially the same as those for the cooking steam. This allows for better control of the cooking process based on these two temperatures, resulting in better cooking performance.

[0009] Optionally, the centralized temperature detection space refers to a space where the initial section of the cooking steam exhaust channel is approximately parallel to the input section of the supplementary cooking steam supply channel. According to this design, the distance from the temperature detection device to the supplementary cooking steam outlet can be easily designed to be approximately equal to the distance to the cooking steam inlet.

[0010] Optionally, the supplementary cooking steam supply channel is composed of a supplementary cooking steam channel assembly, which includes an output end component. The supplementary cooking steam outlet is located adjacent to or next to the cooking steam inlet on the output end component. According to this solution, by centralizing the supplementary cooking steam outlet and the cooking steam inlet in one component, it is easy to design the supplementary cooking steam outlet and the cooking steam inlet more compactly, so that the distance from the temperature detection device to the supplementary cooking steam outlet is approximately equal to the distance to the cooking steam inlet. Furthermore, the internal space occupied by the cover is small, and the number of parts is few, which is conducive to the miniaturization of the cover and improves the utilization rate of the internal space of the cover.

[0011] Optionally, the supplementary cooking steam supply channel is composed of a supplementary cooking steam channel assembly, which includes an output end component. The initial section of the cooking steam exhaust channel and the input section of the supplementary cooking steam supply channel are both located on the output end component and are approximately parallel. According to this design, the two approximately parallel channel sections are designed on the output end component, facilitating the design of the distance from the temperature detection device to the supplementary cooking steam outlet being approximately equal to the distance to the cooking steam inlet. Furthermore, the output end component has a dual-channel structure, allowing these two channels to occupy the same area of ​​the cover, resulting in a smaller internal space footprint and fewer parts, which is beneficial for miniaturization of the cover and improves the utilization rate of the internal space.

[0012] Optionally, the supplementary cooking steam supply channel is composed of a supplementary cooking steam channel assembly, which includes an output end component that forms a cooking steam outlet. The temperature detection device is positioned adjacent to the cooking steam outlet. According to this design, the temperature detection device can be located outside the output end component but near the cooking steam outlet, allowing for independent structural configurations and greater design flexibility. Alternatively, the temperature detection device can extend at least partially into the cooking steam exhaust channel. According to this design, the temperature detection device is closer to both the supplementary cooking steam outlet and the cooking steam inlet, resulting in a faster temperature detection response.

[0013] Optionally, the cover includes a cover body, the cover body being provided with an output section of the cooking steam exhaust channel, the output end component having an upper deformable portion, the upper deformable portion communicating with the output section of the cooking steam exhaust channel, and the upper end of the upper deformable portion forming the cooking steam outlet. According to this solution, the upper deformable portion provides a sealed connection between the output end component and the output section of the cooking steam exhaust channel; the output end component also serves as a seal at the output cooking steam outlet, achieving multiple functions in one component, reducing the number of parts, simplifying the structure, and facilitating manufacturing.

[0014] Optionally, the supplementary cooking steam supply channel is composed of a supplementary cooking steam channel assembly, which is detachably mounted on the cover. According to this solution, the structure is simplified, and the supplementary cooking steam channel assembly can be detached separately from the cover for cleaning; it also facilitates the installation of a three-dimensional centralized temperature detection area, enabling accurate temperature detection and control of various components to operate according to preset settings.

[0015] Optionally, the cooking appliance also includes a detachable cover assembly detachably mounted on the cover body, and the supplementary steam supply channel is composed of a supplementary steam channel assembly, which is detachably mounted on the detachable cover assembly. According to this solution, the supplementary steam channel assembly and the detachable cover assembly form a single unit, which is detachable and can be removed together from the cover body for cleaning of the supplementary steam supply channel; the removal and installation from the cover body are completed in one step, simplifying the process and increasing efficiency.

[0016] Optionally, the removable cover assembly includes: Cover plate; A cover plate seat, wherein the cover plate seat is connected to the cover plate; The supplementary steam passage assembly includes a main body component for the supplementary steam passage, which spans across the cover plate and the cover plate seat. The supplementary steam passage assembly also includes: Output terminal component, the output terminal component being detachably disposed on the cover plate; and / or A steam generating end component, which is detachably disposed on the cover plate seat.

[0017] According to this solution, the supplementary steam supply channel consists of three parts. The number of parts is small and the structure is simple, which is conducive to the miniaturization of the supplementary steam channel assembly and facilitates production and manufacturing. The assembly process is simple. The steam generating end component can be removed from the detachable cover assembly, and the output end component can be removed from the detachable cover assembly, so as to facilitate the cleaning of the internal channels of the steam generating end component and the output end component separately, making cleaning more convenient.

[0018] Optionally, the main body component of the supplementary steam channel and the steam generating end component can be detachably plugged into, overlapped, or connected to each other. According to this solution, in the disassembled state, the main body component of the supplementary steam channel and the steam generating end component can be disconnected, and their ports form an open opening to facilitate cleaning of the internal channels of the main body component of the supplementary steam channel and the output end component.

[0019] Optionally, the main body component of the supplementary steam channel and the output end component are detachably plugged into, overlapped, or connected to each other. According to this solution, in the disassembled state, the main body component of the supplementary steam channel and the output end component can be disconnected, and their ports form an open opening to facilitate cleaning of the internal channels of the main body component of the supplementary steam channel and the output end component respectively.

[0020] Optionally, the steam generating end component forms an initial section constituting the supplementary cooking steam supply channel. The bottom end of the steam generating end component is open to form a supplementary cooking steam inlet, and the top end of the steam generating end component is closed to form a guide top wall. According to this solution, the top end of the steam generating end component is closed, and no other temperature measuring device is installed, avoiding the air leakage problem caused by installing another temperature measuring device. The sealing effect is good, ensuring the accuracy of temperature measurement and more accurate judgment of the temperature measuring system, making the cooking process safer and more reliable.

[0021] Optionally, the cooking appliance further includes a cooking steam channel component, which forms the output section of the cooking steam exhaust channel. The cooking steam channel component is arranged vertically, and the temperature detection device passes through the side wall of the cooking steam channel component. According to this solution, the cooking steam channel component forms a channel extending vertically. The channel has a short extension length, which shortens the distance from the temperature detection device to the food cooking chamber. This results in a short flow distance for the cooking steam / supplementary steam from the food cooking chamber to the temperature detection device, facilitating accurate temperature measurement.

[0022] Optionally, the cover further includes an infrared heating device for radiating infrared rays into the food cooking chamber. The infrared heating device occupies at least the central area inside the cover, and the centralized temperature detection space is located in the area of ​​the cover corresponding to the rear of the food cooking chamber. According to this solution, supplementary steam can enter or exit the food cooking chamber from the rear, and cooking steam can exit the food cooking chamber from the rear. The two channels occupy a small cooking area on the cover, which is beneficial for miniaturizing the cooking appliance. Attached Figure Description

[0023] 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.

[0024] In the attached image: Figure 1 This is a three-dimensional cross-sectional view of the cooking utensil according to this application; Figure 2 for Figure 1 A three-dimensional exploded view of the cooking utensils shown; Figure 3 for Figure 1 A three-dimensional cross-sectional diagram of the middle cover; Figure 4 for Figure 3 The diagram shown is an exploded three-dimensional representation of the cover. Figure 5 for Figure 2 A three-dimensional schematic diagram of a removable cover assembly with a steam channel for supplementary cooking; Figure 6 for Figure 5 Another perspective view of the removable cover assembly with the supplementary steam passage component shown; Figure 7 for Figure 5 A three-dimensional cross-sectional schematic diagram of the removable cover assembly with supplementary steam channel shown; Figure 8 for Figure 5 An exploded perspective view of the removable cover assembly with the supplementary steam channel assembly shown. Figure 9 for Figure 5 An exploded perspective view of the removable cover assembly with the supplementary steam channel assembly shown. Figure 10 for Figure 5 A three-dimensional exploded cross-sectional view of the removable cover assembly with supplementary steam channel shown. Figure 11 This is a schematic flowchart of the control method for supplementary steam according to this application; Figure 12 A schematic flowchart illustrating a specific example of the control method for supplementary steam according to this application; Figure 13 This is a schematic flowchart illustrating another specific example of the control method for supplementary steam according to this application; Figure 14 This is a schematic flowchart illustrating a specific example of a method for controlling cooking steam according to this application.

[0025] Explanation of reference numerals in the attached figures: 1. Cooking appliance; 2. Pot body; 3. Lid; 4. Inner pot; 5. Inner pot heating device; 6. Pivot shaft; 7. Pot mouth sealing ring; 8. Lid body; 9. Lining; 10. Top cover assembly; 11. Torsion spring; 12. Removable lid assembly; 13. Lid plate; 14. Lid plate seat; 15. Outer shell; 16. Middle plate; 17. Base; 19. Lid plate through hole; 20. Lid plate seat mounting hole; 21. Lid plate mounting hole; 22. Through hole sealing ring; 23. Sealing part; 31. Steam valve; 32. Cooking steam channel component; 33. Channel seal; 34. Temperature detection device; 40. Steam generator; 41. Water container; 42. Water container heating device; 100. Supplementary cooking steam channel assembly; 101. Protrusion; 110. Steam generator end component; 11. 1. Supplemental cooking steam inlet; 112. First supplemental cooking steam interface; 113. Guide top wall; 120. Main component of supplemental cooking steam channel; 121. Support component; 130. Output end component; 131. Supplemental cooking steam outlet; 132. Second supplemental cooking steam interface; 133. Cooking steam inlet; 134. Cooking steam outlet; 135. Upper deformed part; 200. Infrared heating device; P1. Supplemental cooking steam supply channel; P11. Initial section of supplemental cooking steam; P12. Supplemental cooking steam transmission section; P13. Supplemental cooking steam input section; P2. Cooking steam exhaust channel; P21. Initial section of cooking steam exhaust channel; P22. Output section of cooking steam exhaust channel; A1. Centralized temperature detection space; A11. Inlet and outlet centralized area. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] The ordinal numbers such as “first” and “second” used in this application are merely identifiers and have no other meaning, such as a specific order. Furthermore, for example, the term “first component” does not imply the existence of a “second component,” and the term “second component” does not imply the existence of a “first component.” It should be noted that the terms “upper,” “lower,” “front,” “back,” “left,” “right,” “inner,” “outer,” and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0030] 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.

[0031] like Figures 1 to 4 As shown, this application provides a cooking appliance 1, which includes a pot body 2 and a lid 3. The pot body 2 has a cylindrical inner pot storage section. The inner pot 4 can be fixedly installed in the inner pot storage section, or can be freely placed into or removed from the inner pot storage section to facilitate cleaning of the inner pot 4. The inner pot 4 is usually made of metal and has a circular opening on its upper surface for holding materials to be heated, such as rice or soup. The pot body 2 includes an inner pot heating device 5, such as a heating plate, for heating the inner pot 4. It is understood that the cooking appliance 1 according to this application can be a rice cooker, an electric pressure cooker, or other cooking appliances 1, and the cooking appliance 1 can have various functions such as cooking porridge in addition to cooking rice.

[0032] 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 line relative to the pot body 2 between a closed position and an open position, 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.

[0033] 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.

[0034] 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 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 in the inner liner 9 and is fitted with a torsion spring 11 for automatic lid opening. The pot body 2 also includes a lid opening button, and the lid body 3 has a lid opening mechanism. By pressing the lid opening button, the lid opening mechanism is unlocked. The end of the lid body 3 with the lid opening mechanism or near the lid opening button is the front end, and the opposite end of the front end is the rear end. Generally, the rear end of the lid body 3 is near the pivot 6 between the lid body 3 and the pot body 2.

[0035] In some examples, the lid 3 also includes a removable lid assembly 12. The removable lid assembly 12 is located below the lid body 8 and is detachably connected to the lid body 8 as a component, thus allowing the removable lid assembly 12 to be detachably mounted on the lid 3 from below. When cleaning the removable lid assembly 12 is required, it can be removed from the lid 3. Specifically, the removable lid assembly 12 is located below or inside the liner 9 and is detachably connected to the liner 9. For example, the removable lid assembly 12 is movably connected to the liner 9 via a plug-in and / or snap-fit ​​structure. The removable lid assembly 12 basically includes a lid plate 13, a lid seat 14, and the aforementioned pot opening sealing ring 7. The lid plate 13 may be a metal plate. At least a portion of the lower surface of the lid plate 13 forms the top surface of the food cooking cavity. The lid seat 14 allows the lid plate 13 to be detachably connected to the liner 9. The lid plate 13 can be connected to the lid seat 14 by other suitable means such as snaps or fasteners. A portion of the pot opening sealing ring 7 is pressed between the cover plate 13 and the cover plate seat 14.

[0036] In some alternative examples, the cover 3 includes the aforementioned cover plate 13, which is fixedly connected to the cover body 8, specifically to the liner 9, so that the cover plate 13 is non-removably mounted on the cover 3.

[0037] The pot body 2 basically includes an outer shell 15, a middle plate 16 located on the upper side of the outer shell 15, and a base 17 located on the lower side of the outer shell 15. The lower end of the outer shell 15 can be connected to the outer periphery of the middle plate 16 by a suitable method such as snap-fit, fastener connection such as screws, or bonding, and the lower end of the outer shell 15 can be connected to the upper end of the base 17 by a suitable method such as snap-fit, fastener connection such as screws, or bonding.

[0038] The cooking appliance 1 of this application has a steam supplementary cooking function. High-temperature steam can be delivered to the food cooking cavity to heat and moisten the food inside. For example, during the heat preservation stage, high-temperature steam can be introduced into the food 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 food cooking cavity, the cover 3 is provided with a supplementary cooking steam supply channel P1 that communicates with the food cooking cavity. The supplementary cooking steam supply channel P1 is used for the passage of steam for supplementary cooking in the food cooking cavity. Specifically, it can receive supplementary cooking steam from the steam generator 40 and deliver supplementary cooking steam to the food cooking cavity.

[0039] The steam generating device 40 can be located on the lid 3 or the pot body 2. Figure 1 An example of a steam generator 40 disposed in the pot body 2 is shown schematically. Figure 4 As shown, the steam generator 40 includes a steam generating chamber with an upper opening. The steam generator 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. The water container 41 forms the steam generating chamber, with its upper opening for the overflow of supplementary cooking steam. The water container heating device 42 is used to heat the water in the water container 41 to generate supplementary cooking steam; and is usually disposed below the water container 41 and has a cavity for receiving the water container 41. This supplementary cooking steam can enter the supplementary cooking steam supply channel P1, and then enter the food cooking chamber to keep food such as rice in the inner pot 4 moist. When the steam generator 40 is disposed in the lid body 3, the placement and structure of the water container 41 and the water container heating device 42 are the same as... Figure 1 The examples shown are different.

[0040] 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 1 and Figure 3 As shown, the cover 3 is also provided with a cooking steam exhaust channel P2 for the steam discharged from the food cooking chamber to pass through.

[0041] 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, heating the food from the top. Specifically, the lid 3 includes a top heating device located in the area of ​​the lid 3 corresponding to the inner pot 4, and the heat generated by the top heating device can be transferred towards the cooking cavity via heat radiation. The top heating device can be any suitable heating device, such as an electric heating device, an electromagnetic heating device, or an infrared heating device 200. 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 illustrated example schematically shows the top heating device as an infrared heating device 200, 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, making the food evenly heated, thereby stimulating the aroma of the food.

[0042] For the infrared heating device 200, the cover plate 13 is partially provided with a cover plate through hole 19. The cover plate through hole 19 corresponds to the position of the infrared heating device 200. In other words, the cover plate through hole 19 is located directly below the infrared heating device 200. The infrared rays generated by the infrared heating device 200 can radiate towards the inner pot 4 through the cover plate through hole 19. The cover body 3 may also include a through hole sealing ring 22. The through hole sealing ring 22 can be disposed around the cover plate through hole 19 and located on the side opposite to the side where the pot opening sealing ring 7 is located, specifically between the infrared heating device 200 and the inner liner 9. Forming a seal at the cover plate through hole 19 can prevent steam from entering the interior of the cover body 3 through the gap between the infrared heating device 200 and the cover plate 13, thereby improving the sealing effect of the cover body 3.

[0043] The following text combines Figures 1 to 14 The specific structure of the steam supply channel P1 for supplementary cooking is described.

[0044] like Figures 1 to 4As shown, the lid 3 also includes a supplementary steam channel assembly 100 for forming a supplementary steam supply channel P1. The supplementary steam channel assembly 100 is located on the upper side of the lid 13 and the lower side of the liner 9. The supplementary steam channel assembly 100 is arranged horizontally parallel to the top heating device, specifically on the rear side of the top heating device. The supplementary steam channel assembly 100 is mounted on the removable lid assembly 12, forming a single unit. The removable lid assembly 12 with the supplementary steam channel assembly 100 is detachably connected to the lid body 8. Thus, the supplementary steam channel assembly 100 can be removed from the lid 3 along with the removable lid assembly 12 for cleaning the supplementary steam supply channel P1 on the supplementary steam channel assembly 100. The lid through-hole 19 is adjacent to the front end of the removable lid assembly 12. The lid through-hole 19 occupies at least the central area of ​​the removable lid assembly 12. The lid 13 defines a cooking area within the pot opening sealing ring 7. The cover plate through hole 19 and the supplementary steam channel assembly 100 can be arranged in a front-to-back manner, with the cover plate through hole 19 in front and the supplementary steam channel assembly 100 in the back, so that the cover plate through hole 19 can be designed to occupy a larger cooking area and increase the infrared radiation area.

[0045] For cooking appliances 1 that do not have an infrared heating device 200, the supplementary steam channel assembly 100 can be located near the rear or middle of the removable cover assembly 12, and supplementary steam can be sprayed from the rear or middle of the cover plate 13 into the food cooking chamber.

[0046] like Figures 5 to 10 As shown, the supplementary cooking steam channel assembly 100 is arranged horizontally. The supplementary cooking steam channel assembly 100 includes a steam generating end component 110 for through which supplementary cooking steam passes, a supplementary cooking steam channel main body component 120, and an output end component 130. The supplementary cooking steam channel main body component 120 is located between the steam generating end component 110 and the output end component 130, and its two ends are respectively sealed and connected to the steam generating end component 110 and the output end component 130. The steam generating end component 110 is sealed and connected to the steam generating device 40, forming a sealed channel between them. The output end component 130 is sealed and connected to the food cooking chamber, forming a sealed channel between them. The supplementary cooking steam channel main body component 120 is sealed and connected to both the steam generating end component 110 and the output end component 130.

[0047] Specifically, such as Figure 6As shown, the steam generating end member 110 has a supplementary cooking steam inlet 111 for docking with the steam generating device 40. The supplementary cooking steam inlet 111 faces vertically. In the illustrated example, the supplementary cooking steam inlet 111 is located at the bottom end of the steam generating end member 110 and faces downwards to dock with the steam generating device 40 located in the pot body 2. Alternatively, the supplementary cooking steam inlet 111 is located at the top end of the steam generating end member 110 and faces upwards to dock with the steam generating device 40 located in the lid body 3. The steam generating end member 110 is described herein with reference to the illustrated example. The output end member 130 has a supplementary cooking steam outlet 131 for communicating with the food cooking chamber. The supplementary cooking steam outlet 131 faces downwards to spray supplementary cooking steam downwards toward the food cooking chamber.

[0048] It should be noted that "docking" in this article means that two components are joined or connected in corresponding positions. The joining method includes the two components being connected in a detachable or non-detachable manner, or the two components being close to and touching each other.

[0049] The supplementary cooking steam passage assembly 100 spans across the cover plate 13 and the cover plate seat 14. The steam generating end component 110 is connected to the cover plate seat 14, and the output end component 130 is connected to the cover plate 13. The main body component 120 of the supplementary cooking steam passage spans across both the cover plate 13 and the cover plate seat 14. The steam generating device 40 is located at the rear corner of the pot body 2, and the steam generating end component 110 is located at the rear corner of the cover body 3, specifically at the rear corner of the cover plate seat 14, thus the supplementary cooking steam inlet 111 is located at the corner of the cover body 3. This allows the position of the supplementary cooking steam inlet 111 to correspond vertically with the water container 41 of the steam generating device 40, allowing steam to enter the supplementary cooking steam inlet 111 from bottom to top, resulting in a shorter and more direct steam path between the supplementary cooking steam inlet 111 and the water container 41. The steam generating end component 110 abuts against the periphery of the upper opening when the cover body 3 is closed onto the pot body 2. The steam generating end component 110 can seal the upper opening of the steam generating device 40 to prevent the steam from leaking outwards. The opening and closing of the steam generating device 40 of the pot body 2 by the steam generating end component 110 is achieved by opening and closing the lid 3, which reduces the user's operation steps and improves the user's operating experience.

[0050] The supplementary steam outlet 131 is located at the front end of the supplementary steam channel assembly 100. Optionally, the supplementary steam outlet 131 is located near or on the longitudinal centerline of the cover plate 13. Optionally, the output end member 130 is located at the rear of the cover plate 13, thereby the supplementary steam outlet 131 is located at the rear of the cover plate 13. Alternatively, the output end member 130 is located at the middle of the cover plate 13, thereby the supplementary steam outlet 131 is located at the middle of the cover plate 13.

[0051] like Figure 7 and Figure 10 As shown, the supplementary cooking steam supply channel P1 extends between the supplementary cooking steam inlet 111 and the supplementary cooking steam outlet 131. Specifically, the steam generating end component 110 is an integral hollow component, for example, it is an integral hollow component made of an elastic material. The main body component 120 of the supplementary cooking steam channel is a component with a circular tubular channel. The output end component 130 is an integral hollow component, for example, it is an integral hollow component made of an elastic material. The steam generating end component 110 forms a supplementary cooking steam initial section P11 that communicates with the supplementary cooking steam inlet 111, the main body component 120 of the supplementary cooking steam channel forms a supplementary cooking steam transmission section P12, and the output end component 130 forms a supplementary cooking steam input section P13 that communicates with the supplementary cooking steam outlet 131. The supplementary cooking steam input section P13 is connected to the supplementary cooking steam initial section P11 through the supplementary cooking steam transmission section P12. The supplementary cooking steam enters the initial section P11 from the supplementary cooking steam inlet 111, flows through the supplementary cooking steam transmission section P12, and then flows into the supplementary cooking steam input section P13 before being ejected from the supplementary cooking steam outlet 131.

[0052] The supplementary steam passage assembly 100 is detachably connected to the removable cover assembly 12. Specifically, the steam generating end component 110 is detachably connected to the cover plate seat 14, allowing the steam generating end component 110 to be removed from the removable cover assembly 12 for cleaning the initial supplementary steam section P11. The supplementary steam passage main body component 120 is detachably connected to the cover plate seat 14. The supplementary steam passage main body component 120 occupies an area on the cover plate seat 14 for installation, reducing the area ratio of the supplementary steam passage assembly 100 on the cover plate 13; and the supplementary steam passage main body component 120 is detachable, facilitating assembly and replacement. The output end component 130 is detachably connected to the cover plate 13, allowing the output end component 130 to be removed from the removable cover assembly 12 for cleaning the supplementary steam input section P13.

[0053] like Figure 8 and Figure 10 As shown, the cover plate seat 14 has a cover plate seat mounting hole 20. The steam generating end component 110 of the supplementary steam channel assembly 100 is detachably inserted into the cover plate seat mounting hole 20. For example, the steam generating end component 110 can be snapped onto the edge of the cover plate seat mounting hole 20. The steam generating end component 110 can be detachably installed onto the cover plate seat 14 by snapping, and the disassembly and assembly process is simple and easy to operate, facilitating the separate removal of the steam generating end component 110 for cleaning. The cover plate 13 has a cover plate mounting hole 21. The output end component 130 is detachably inserted into the cover plate mounting hole 21. For example, the output end component 130 can be snapped onto the edge of the cover plate mounting hole 21. The output end component 130 can be detachably installed onto the cover plate 13 by snapping, and the disassembly and assembly process is simple and easy to operate, facilitating the separate removal of the output end component 130 for cleaning.

[0054] The shape of the cover plate mounting hole 20 corresponds to the shape of the supplementary steam inlet 111, and the shape of the cover plate mounting hole 21 corresponds to the shape of the supplementary steam outlet 131. For example, if the supplementary steam inlet 111 and the supplementary steam outlet 131 are circular, the cover plate mounting hole 20 and the cover plate mounting hole 21 are also circular. The neat structure of the inner side of the cover body 3 can improve the overall appearance of the inner side of the cover body 3 in terms of shape.

[0055] like Figure 8 and Figure 9 As shown, the cover plate seat 14 is provided with a mounting portion 23, which protrudes upward from the upper surface of the cover plate seat 14. The supplementary steam passage assembly 100 also includes a support member 121. The support member 121 is connected to approximately the middle of the supplementary steam passage main body member 120. The support member 121 can be detachably connected to the mounting portion 23, thereby detachably mounting the supplementary steam passage main body member 120. For example, the support member 121 is connected to the mounting portion 23 by fasteners such as screws and / or clips, so that the supplementary steam passage main body member 120 is non-removably detachable / movably detachable.

[0056] Optionally, the seat mounting portion 23 is integrally formed on the cover plate seat 14; the support member 121 is integrally formed on the main body member 120 of the supplementary steam passage. If needed and / or desired, the seat mounting portion 23 is a separate component that is connected to the cover plate seat 14 by welding, fasteners such as screws, snap-fit, plug-in, or other suitable means; the support member 121 is a separate component that is connected to the main body member 120 of the supplementary steam passage by welding, fasteners such as screws, snap-fit, plug-in, or other suitable means.

[0057] The steam generating end component 110 has a first supplementary cooking steam inlet 112, and a supplementary cooking steam initial section P11 extends between the supplementary cooking steam inlet 111 and the first supplementary cooking steam inlet 112. The first supplementary cooking steam inlet 112 is connected to one end of the supplementary cooking steam channel main component 120, and the first supplementary cooking steam inlet 112 faces horizontally. The output end component 130 also has a second supplementary cooking steam inlet 132, and a supplementary cooking steam input section P13 extends between the supplementary cooking steam outlet 131 and the second supplementary cooking steam inlet 132. The second supplementary cooking steam inlet 132 is connected to the other end of the supplementary cooking steam channel main component 120, and the second supplementary cooking steam inlet 132 faces horizontally.

[0058] One end of the main component 120 of the supplementary cooking steam passage is detachably inserted into, overlapped with, or directly connected to the steam generating end component 110 at the first supplementary cooking steam interface 112. The other end of the main component 120 of the supplementary cooking steam passage is detachably inserted into, overlapped with, or directly connected to the output end component 130 at the second supplementary cooking steam interface 132. The detachable connection between the steam generating end component 110 / output end component 130 and the main component 120 of the supplementary cooking steam passage can be a connection, such as the insertion shown in the illustration, in which case the sealing connection between the two is more stable and reliable; or it can be an abutment, in which case the steam generating end component 110 / output end component 130 has a deformation structure at the interface to seal against the main component 120 of the supplementary cooking steam passage, resulting in a better sealing effect. The illustration shows that both ends of the main component 120 of the supplementary cooking steam passage are respectively inserted into the steam generating end component 110 and the output end component 130 via interfaces.

[0059] The main component 120 of the supplementary steam passage is a separate, self-removable part. Alternatively, the supplementary steam passage assembly 100 is integrally or fixedly connected to the removable cover assembly 12, and the main component 120 of the supplementary steam passage and the removable cover assembly 12 are integrally detachable. In this case, the main component 120 of the supplementary steam passage is non-detachably mounted on the removable cover assembly 12. The overall external shape of the main component 120 of the supplementary steam passage is tubular. Alternatively, the main component 120 of the supplementary steam passage can be any other elongated component with tubular connecting ends at both ends. The main component 120 of the supplementary steam passage can form a circumferentially sealed supplementary steam transmission section P12, eliminating the need for additional sealing components; the construction of the supplementary steam supply passage P1 is simple. The main component 120 of the supplementary steam passage extends along a reference straight line L. In other words, the main component 120 of the supplementary steam passage is a straight pipe, with its central axis on the reference straight line L, or its extension direction extending along the reference straight line L, thus making the supplementary steam transmission section P12 a straight passage. The straight-line steam channel main component 120 shortens the flow distance and time of the steam, thereby quickly supplying steam to the food cooking chamber and reducing energy loss. Structurally, it can be easily manufactured and occupies less internal space in the cover 3, which is conducive to the miniaturization of the cover 3.

[0060] See Figure 5 The main component 120 of the supplementary steam passage is inclined relative to the longitudinal centerline of the cover plate 13. In other words, the reference line L / central axis / extension direction of the main component 120 of the supplementary steam passage has a predetermined angle with the centerline extending in the front-rear direction of the cover plate 13. It should be noted that the "longitudinal centerline" refers to a straight line extending in the longitudinal direction and passing through the center of the component. For example, the longitudinal centerline of the cover plate 13 extends in the longitudinal direction and passes through the center of the cover plate 13; the term "longitudinal" as used herein refers to the front-rear direction, and "lateral" refers to the left-right direction.

[0061] The output end component 130 also forms an initial section P21 for the passage of cooking steam, through which cooking steam can be discharged to the external environment. The output end component 130 also forms a cooking steam inlet 133 and a cooking steam outlet 134, with the initial section P21 extending between the cooking steam inlet 133 and the cooking steam outlet 134. The cooking steam exhaust channel P2 includes the initial section P21. The initial section P21 of the cooking steam exhaust channel is independent of the supplementary cooking steam input section P13. With this configuration, a single seal forms a dual-channel system, respectively delivering supplementary cooking steam and cooking steam, serving two purposes. Furthermore, these two channels occupy the same area of ​​the cover 3, resulting in a small internal space footprint and fewer parts, which is beneficial for miniaturization of the cover 3 and improves the utilization rate of its internal space. Furthermore, the initial section P21 of the cooking steam exhaust channel has a higher temperature, and the adjacent supplementary cooking steam input section P13 can maintain an even higher temperature. On the one hand, the steam entering the food cooking chamber loses less heat when passing through the supplementary cooking steam supply channel P1, resulting in a higher temperature for the supplementary cooking steam and a better supplementary cooking effect. On the other hand, it prevents the steam entering the food cooking chamber from condensing and liquefying during transmission in the supplementary cooking steam input section P13, thus avoiding water droplets in the supplementary cooking steam from affecting the supplementary cooking effect. The output end component 130 serves as a seal at both the cooking steam inlet 133 and the supplementary cooking steam outlet 131. This multi-functional design reduces heat loss during the transmission of supplementary cooking steam, effectively ensuring optimal moisture retention for foods such as rice.

[0062] Optionally, the main component 120 of the supplementary steam channel is injection molded from rigid plastic, such as PP (polypropylene), PE (polyethylene), PET (polyethylene terephthalate), PS (polystyrene), etc. If needed and / or desired, the main component 120 of the supplementary steam channel is made of soft plastic, such as silicone rubber. The steam generating end component 110 and the output end component 130 are both made of silicone rubber. The silicone rubber-made steam generating end component 110 and output end component 130, in addition to their sealing capabilities, primarily possess structural strength and support capabilities, stably supporting the supplementary steam channel main component 120 at the joints. This results in a more stable sealing connection between the steam generating end component 110 and the supplementary steam channel main component 120, and between the output end component and the supplementary steam channel main component 120, preventing air leakage. Furthermore, the complex structure of the steam generating end component 110 and the output end component 130 allows for forced demolding during silicone rubber injection molding, ensuring successful production of the finished product. Silicone rubber has the characteristics of long-term resistance to high temperature and moisture, no odor, low cost, reliable mass production process, good structural plasticity, and good long-term sealing performance.

[0063] See back Figure 1 and Figure 3 The cooking steam exhaust passage P2 also includes an output section P22. The cooking steam exhaust is connected to the food cooking chamber via the initial section P21 of the cooking steam exhaust passage. Cooking steam first enters the initial section P21 of the cooking steam exhaust passage and then exits to the external environment via the output section P22. The cover 3 also includes a steam valve 31 forming the output section P22 of the cooking steam exhaust passage and a cooking steam passage component 32. The cooking steam passage component 32 is located below the steam valve 31 and above the output end component 130. The cooking steam passage component 32 is fixed to the upper side of the liner 9. The cooking steam passage component 32 is sealed and connected to the output end component 130 via the steam inlet of the liner 9. Channel seals 33 are provided between the steam valve 31 and the cooking steam passage component 32, and between the cooking steam passage component 32 and the liner 9, to form a sealed connection.

[0064] The output end member 130 has an upper deformable portion 135 located at its top. The upper end of the upper deformable portion 135 forms an upward-facing cooking steam outlet 134. The upper deformable portion communicates with the output section P21 of the cooking steam exhaust passage. Specifically, the upper deformable portion 135 can correspond to the cooking steam passage member 32 to form a sealed connection. The liner 9 has a liner steam passage, and the upper deformable portion 135 abuts against the edge of the liner steam passage. During abutment, the lower deformable portion 115 undergoes elastic deformation. The cooking steam passage member 32 communicates with the initial section P21 of the cooking steam exhaust passage via the liner steam passage.

[0065] See Figure 1 and Figure 3 The cover 3 has a centralized temperature detection space A1. Figure 1 and Figure 3 The approximate location of the centralized temperature detection space A1 is schematically marked with a dashed box. Centralized temperature detection space A1 is a three-dimensional region on the cover 3, within which a portion of the supplementary steam supply channel P1 and a portion of the cooking steam exhaust channel P2 are located. Specifically, the outlet portion of the supplementary steam supply channel P1 and at least the inlet portion of the cooking steam exhaust channel P2 are located within centralized temperature detection space A1. The structures constituting the channels within centralized temperature detection space A1 have similar cross-sectional dimensions with relatively small dimensional differences.

[0066] In the illustrated example, the three-dimensional area occupied by the output component 130 and the cooking steam channel component 32 on the cover 3 roughly constitutes a centralized temperature detection space A1. Thus, the supplementary cooking steam input section P13, the initial section P21 of the cooking steam exhaust channel, and the output section P22 of the partial cooking steam exhaust channel formed by the cooking steam channel component 32 are located within this centralized temperature detection space A1. The supplementary cooking steam outlet 131 and the cooking steam inlet 133 are located within the centralized temperature detection space A1. Specifically, see [link to documentation]. Figure 6 The inner bottom surface of the cover 3 has an inlet / outlet concentration area A11. Figure 6 The location of the inlet / outlet centralized area A11 is schematically marked with a dashed line. The inlet / outlet centralized area A11 forms the bottom surface of the centralized temperature detection space A1. The supplementary steam outlet 131 and the cooking steam inlet 133 are located in the inlet / outlet centralized area A11.

[0067] The centralized temperature detection space A1 can be located in the area of ​​the cover 3 corresponding to the rear of the food cooking chamber. The supplementary steam can enter or exit the food cooking chamber from the rear, and the cooking steam can exit the food cooking chamber from the rear. The two channels occupy a small cooking area on the cover 3, which is conducive to the miniaturization of the cooking appliance 1.

[0068] The cover 3 also includes a temperature detection device 34 for detecting the temperature of the supplementary steam and the temperature of the cooking steam. Specifically, the temperature detection device 34 detects the temperature of the supplementary steam and the temperature of the cooking steam at different time periods. For example, in the first time period, the water container 41 is heated but the inner pot 4 is not heated, so supplementary steam is generated but cooking steam is not generated, and the temperature detected by the temperature detection device 34 in the first time period is the temperature of the supplementary steam; in the second time period, the water container 41 is not heated but the inner pot 4 is heated, so no supplementary steam is generated but cooking steam is generated, and the temperature detected by the temperature detection device 34 in the second time period is the temperature of the cooking steam.

[0069] Temperature detection device 34 is also located in centralized temperature detection space A1. Centralized temperature detection space A1 is a creative three-dimensional spatial design of the working positions of temperature detection device 34, supplementary steam outlet 131, and cooking steam inlet 133, achieving a smaller overall number of components and a simpler, more compact structure. Temperature detection device 34 is used to detect both the temperature of supplementary steam and the temperature of cooking steam, achieving accurate temperature detection for both. The cooking appliance 1 can be configured with a temperature measurement system that can simultaneously detect and control the temperature of supplementary steam and cooking steam during the cooking process. This simplifies the structure of the cooking appliance 1 and reduces manufacturing costs.

[0070] The centralized temperature detection space A1 refers to a location where the supplementary steam outlet 131 and the cooking steam inlet 133 are adjacent to or adjacent to each other, and the distance between the temperature detection device 34 and the supplementary steam outlet 131 is approximately equal to the distance between the temperature detection device 34 and the cooking steam inlet 133. The response speed of the temperature detection device 34 to the supplementary steam is approximately the same as that to the cooking steam, ensuring that the temperature detection conditions for the supplementary steam are essentially the same as those for the cooking steam. This allows for better control of the cooking process based on these two temperatures, resulting in better cooking performance. Optionally, the centralized temperature detection space A1 refers to a location where the initial section P21 of the cooking steam exhaust channel is approximately parallel to the input section (i.e., the supplementary steam input section P13) of the supplementary steam supply channel P1. It is easy to design the distance from the temperature detection device 34 to the supplementary steam outlet 131 and the distance to the cooking steam inlet 133 to be approximately equal.

[0071] Due to manufacturing and assembly reasons, there may be deviations in the direction, distance, and size of components. The terms "approximately" and "basically" used to describe the direction, distance, and size of components mentioned above refer to a fluctuation of approximately ±5% relative to the specified direction, distance, and size. For example, "approximately horizontal direction" means that the angle with the horizontal direction is within ±5°, and "distance is basically equal to" means that the difference between the two distances is within ±5mm.

[0072] For the illustrated example, the supplementary steam outlet 131 and the cooking steam inlet 133 are disposed adjacent to each other on the output end member 130. Alternatively, the supplementary steam outlet 131 and the cooking steam inlet 133 are disposed adjacent to each other on the output end member 130. By concentrating the supplementary steam outlet 131 and the cooking steam inlet 133 on one member, it is easy to design the supplementary steam outlet 131 and the cooking steam inlet 133 more compactly, so that the distance from the temperature detection device 34 to the supplementary steam outlet 131 is designed to be approximately equal to the distance to the cooking steam inlet 133. Optionally, the initial section P11 of the cooking steam exhaust passage and the input section P13 of the supplementary steam supply passage are both disposed on the output end member 130 and are substantially parallel. The main parts of the initial section P11 of the cooking steam exhaust passage and the input section P13 of the supplementary steam supply passage are substantially parallel in the vertical direction. The two roughly parallel channel sections are designed on the output end component 130 to make the distance from the temperature detection device 34 to the supplementary steam outlet 131 and the distance to the cooking steam inlet 133 approximately equal.

[0073] Optionally, the temperature detection device 34 is positioned near the cooking steam outlet 134. Alternatively, the temperature detection device 34 may extend at least partially into the cooking steam exhaust passage P2. For example, the temperature sensor of the temperature detection device 34 may extend into the cooking steam exhaust passage P2.

[0074] The supplementary steam channel assembly 100 forms a supplementary steam supply channel P1 and a partial cooking steam exhaust channel P2. The temperature detection device 34 is located above the supplementary steam channel assembly 100. One channel assembly simultaneously forms dual channels, respectively supplying supplementary steam and cooking steam, facilitating the formation of a centralized temperature detection space A1 on the cover 3. This allows the temperature detection device 34 to be easily placed within the centralized temperature detection space A1. The temperature detection device 34 occupies the centralized temperature detection space above the supplementary steam channel assembly 100, avoiding the area of ​​the cover 3 corresponding to the food cooking chamber, thus contributing to the miniaturization of the cover 3. The temperature detection device 34 is located on the cover body 8. When the supplementary steam channel assembly 100 and the detachable cover assembly 12 are removed together from the cover 3, the temperature detection device 34 remains on the cover 3, not affecting the assembly and disassembly of the supplementary steam channel assembly 100 and the detachable cover assembly 12, and facilitating the wiring of the temperature detection device 34.

[0075] Optionally, the temperature detection device 34 is located adjacent to the output end component 130. The output end component 130 forms a dual channel, and these two channels can converge in the same small area of ​​the cover 3, facilitating the formation of a centralized temperature detection space A1 on the cover 3. The temperature detection device 34 can be positioned closer to the food cooking chamber, bypassing the output end component 130, ensuring the sealing effect of the dual channels. The projection of the temperature measuring head of the temperature detection device 34 onto the inner bottom surface of the cover 3 is located within the inlet / outlet concentration area A11. Supplemental steam / cooking steam can flow upwards to the temperature measuring head via the output end component 130; the flow distance from the supplemental steam / cooking steam to the temperature measuring head is shorter, resulting in more accurate temperature measurement.

[0076] Optionally, the temperature detection device 34 can be located in the cooking steam exhaust channel P2. At different times, both cooking steam and supplementary cooking steam can escape from the cooking steam exhaust channel P2 after filling the food cooking chamber, allowing the temperature measurement environment to meet the requirements of separately detecting the temperature of the cooking steam and separately detecting the temperature of the supplementary cooking steam, resulting in higher temperature measurement accuracy. For example, as shown in the illustration, the temperature detection device 34 is located on the cooking steam channel component 32, and its temperature sensor is located within the output section P22 of the cooking steam exhaust channel. Specifically, the cooking steam channel component 32 is arranged vertically, and the temperature detection device 34 passes through the peripheral wall of the cooking steam channel component 32. The cooking steam channel component 32 forms a vertically extending channel with a short extension length, resulting in a short distance between the temperature detection device 34 and the food cooking chamber. This shortens the flow distance of the cooking steam / supplementary cooking steam from the food cooking chamber to the temperature detection device 34, facilitating accurate temperature measurement.

[0077] The bottom of the steam generating end component 110 is open to form a supplementary cooking steam inlet 111, while the top of the steam generating end component 110 is closed to form a guide top wall 113. The top of the steam generating end component 110 is closed, and no other temperature measuring device is installed there, nor is another temperature measuring device installed at the main tubular supplementary cooking steam channel component 120. This avoids the leakage problem caused by installing another temperature measuring device, ensuring good sealing performance, accurate temperature measurement, and more accurate judgment by the temperature measurement system, making the cooking process safer and more reliable.

[0078] The cooking appliance 1 also includes a control device. The control device is electrically connected to the inner pot heating device 5, the water container heating device 42, and the temperature detection device 34, respectively. The control device is configured (i.e., the control method includes) to control the inner pot heating device 5 and the water container heating device 42 to heat or stop heating based on the steam temperature T detected by the temperature detection device 34. The control device, the inner pot heating device 5, the water container heating device 42, and the temperature detection device 34 constitute a temperature measurement system capable of simultaneously detecting and controlling the temperature of the supplementary steam and the cooking steam during the cooking process; that is, one temperature measurement system is used to control two heating systems.

[0079] The control device is configured to stagger the heating of the inner pot heating device 5 and the water container heating device 42 at different time periods, so that the heating of the inner pot 4 and the water container 41 is staggered at different time periods. The control device determines the state of steam in the inner pot 4 or the water container 41 based on the detected steam temperature T. For example, in the first time period, the water container 41 is heated but the inner pot 4 is not heated, and the control device determines whether supplementary cooking steam is generated in the water container 41 and whether the desired temperature is reached based on the detected steam temperature T; in the second time period, the water container 41 is not heated but the inner pot 4 is heated, and the control device determines whether cooking steam is generated in the inner pot 4 and whether the desired temperature is reached based on the detected steam temperature T.

[0080] The cooking process includes multiple stages, such as the water absorption stage, the heating stage, the boiling stage, the simmering stage, and the heat-keeping stage. If needed and / or desired, supplementary steam can be injected into the inner pot 4 for a certain period of time during each of these stages. Alternatively, one, two, or more stages can be selected for this purpose. The desired temperature of the cooking steam differs for each stage, and the desired temperature of the supplementary steam also differs for each stage.

[0081] The following is combined Figures 11 to 13 The description confirms the status of the steam in the water container 41.

[0082] like Figures 11 to 13As shown, the control device is configured to control the heating of the inner pot heating device 5 and the water container heating device 42, that is, to control the heating of the inner pot 4 and the water container 41. The water and food in the inner pot 4 are heated to generate cooking steam, and the water in the water container 41 is heated to generate supplementary cooking steam. After a certain amount of cooking steam accumulates in the inner pot 4, it flows into the cooking steam exhaust channel P2; the supplementary cooking steam first flows into the inner pot 4 through the supplementary cooking steam supply channel P1, and after a certain amount accumulates in the inner pot 4, it flows into the cooking steam exhaust channel P2.

[0083] During the cooking process, the temperature detection device 34 continuously detects the steam temperature T and generates a temperature signal. The control device is configured to receive the steam temperature T signal from the temperature detection device 34. The control device is configured to control the inner pot heating device 5 to stop heating for a first preset time S1 during the period when the water container heating device 42 is continuously heating. 设 The water container 41 is continuously heated, generating a certain amount of supplementary steam, which flows into the inner pot 4. To ensure that the temperature detection device 34 detects the temperature of the supplementary steam, it is necessary to stop the generation of cooking steam and allow the supplementary steam to fill the inner pot 4. It takes a certain amount of time for the supplementary steam to fill the inner pot 4, so a first preset time S1 for stopping heating the inner pot 4 is set. 设 The supplementary cooking steam flows back into the channel space where the temperature detection device 34 is located (i.e., the cooking steam exhaust channel P2). At this time, the cooking steam exhaust channel P2 is filled with supplementary cooking steam and has little or no cooking steam. Optionally, the first preset duration S1 设 It can be 20~300 seconds, for example, the first preset duration S1. 设 Suitable values ​​are 20 seconds, 50 seconds, 60 seconds, 80 seconds, 100 seconds, 150 seconds, 200 seconds, 250 seconds, and 300 seconds.

[0084] like Figure 11 As shown, the control device is configured to determine, based on the detected steam temperature T, that the water container 41 has generated supplementary cooking steam at the desired temperature. Since the supplementary cooking steam fills the channel space where the temperature detection device 34 is located, the temperature detection device 34 detects the temperature of the supplementary cooking steam. The desired temperature of the supplementary cooking steam is generally higher than the desired temperature of the cooking steam.

[0085] Optionally, the control device is configured to determine whether the detected steam temperature T is greater than or equal to a first preset temperature T1. 设 If the determination is yes, it means that a certain amount of cooking steam and / or supplementary steam has accumulated and flowed into the channel space where the temperature detection device 34 is located, then the inner pot heating device 5 is controlled to stop heating for a first preset time S1. 设 If the determination is negative, then the heating of the inner pot heating device 5 and the water container heating device 42 is maintained, that is, the process returns to the step of controlling the heating of the inner pot heating device 5 and the water container heating device 42.

[0086] The control device is configured to stop heating the inner pot heating device 5 for a first preset time S1. 设 Then, the water container heating device 42 is continuously heated. This ensures that the space between the inner pot 4 and the temperature detection device 34 is filled with supplementary cooking steam, and that the temperature of the supplementary cooking steam continuously rises. When the water container 41 is continuously heated for a certain period of time, the steam temperature T detected by the temperature detection device 34 can reach the desired temperature of the supplementary cooking steam. The duration of continuous heating of the water container 41 can be 30 to 120 seconds, for example, suitable values ​​such as 30 seconds, 50 seconds, 60 seconds, 80 seconds, 100 seconds, 120 seconds, etc.

[0087] For determining, based on the detected steam temperature T, that water container 41 has generated supplemental steam at the desired temperature, an example is as follows: Figure 12 As shown, the control device is configured to determine whether the steam temperature T is greater than or equal to the second preset temperature T2. 设 If the determination is yes, then it is confirmed that the water container 41 has generated supplementary steam at the desired temperature; if the determination is no, then the water container 41 is kept heating continuously, i.e., the process returns to the step of controlling the water container heating device 42 to continue heating. Second preset temperature T2 设 To determine the desired temperature of the pre-set supplementary steam, the state of the supplementary steam in water container 41 is confirmed based on the steam temperature point. When the steam temperature T reaches the second preset temperature T2... 设 This indicates that water container 41 has generated supplementary steam at the desired temperature. The method for confirming the steam temperature point is relatively intuitive and easy to understand; the steam temperature directly reflects the desired temperature of the supplementary steam. Water container 41 continues to heat for a certain period, for example, 30-120 seconds, until the steam temperature T reaches the second preset temperature T2. 设 .

[0088] Another example of determining, based on the detected steam temperature T, that water container 41 has generated supplemental steam at the desired temperature is as follows: Figure 13 As shown, the control device is configured to calculate the first preset time period Δt1 based on the detected steam temperature T. 设 The temperature change ΔT. The temperature of the supplementary steam generally rises continuously, within the first preset time period Δt1. 设 The temperature change ΔT is the difference between the steam temperature at the start and end of a time period. The control device is configured to determine whether the temperature change ΔT is greater than or equal to a preset temperature change ΔT. 设If the determination is yes, then it is determined that the water container 41 has generated supplementary cooking steam at the desired temperature; if the determination is no, then the water container 41 continues to heat, that is, it returns to the step of controlling the water container heating device 42 to continue heating. Supplementary cooking steam continuously flows into the channel space where the temperature detection device 34 is located. As time changes, the temperature rise of the supplementary cooking steam becomes more significant. When the temperature change ΔT reaches the preset temperature change ΔT... 设 This indicates that water container 41 has generated supplementary cooking steam at the desired temperature. The method for confirming the amount of steam temperature change provides high accuracy in confirming the supplementary cooking steam, effectively avoiding the influence of cooking steam on temperature detection.

[0089] Optionally, the first preset time period Δt1 设 The time interval can be from 10 to 100 seconds, such as 10 seconds, 20 seconds, 30 seconds, 50 seconds, 60 seconds, 80 seconds, 100 seconds, etc. The error, reliability, and timeliness of the temperature detection will affect the preset temperature change ΔT. 设 Preset temperature change ΔT 设 It can be 2~8℃, such as 2℃, 3℃, 4℃, 5℃, 6℃, 7℃, 8℃, etc.

[0090] It should be noted that the cooking process includes the above-mentioned multiple stages, with the first preset temperature T1. 设 First preset duration S1 设 Second preset temperature T2 设 Preset temperature change ΔT 设 The values ​​of these preset parameters can be set differently in these stages. For example, the first preset temperature T1 in the water absorption stage... 设 The first preset temperature T1 during the heating phase 设 Different. In the same stage, the second preset temperature T2 设 Higher than the first preset temperature T1 设 For example, the second preset temperature T2 设 Compared to the first preset temperature T1 设 The temperature is approximately 10°C higher. For example, during the water absorption phase, the first preset temperature T1... 设 The temperature can be set from 20 to 40°C, with a second preset temperature T2. 设 It can be 30~50℃.

[0091] According to another aspect of this application, a control method is provided, the control method including steps performed by a control device of a cooking appliance 1. The following is in conjunction with... Figure 12 and Figure 13 The specific description details the control method used for supplementary steam.

[0092] like Figure 12 As shown, cooking begins, and cooking appliance 1 starts heating P according to its rated power. 额定Heating. The inner pot heating device 5 and the water container heating device 42 are heated simultaneously to heat the inner pot 4 and the water container 41 at the same time. During heating, the inner pot 4 continuously generates cooking steam, and the water container 41 continuously generates supplementary steam. The temperature detection device 34 detects the steam temperature T. Because cooking steam and / or supplementary steam flow into the channel space where the temperature detection device 34 is located, the detected steam temperature T continues to rise. Then, the relationship of steam temperature T is determined: T≥T1. 设 If the condition is met, the steam temperature T reaches the first preset temperature T1. 设 Then proceed to the next step: control the inner pot heating device 5 to stop heating for the first preset time S1. 设 If the determination is negative, the process returns to the step of controlling the heating of the inner pot heating device 5 and the water container heating device 42. After the inner pot 4 stops heating for a period of time, the steam temperature detected by the temperature detection device 34 is the temperature of the supplementary steam generated by the heating of the water container 41.

[0093] Next, the water container heating device 42 is controlled to continuously heat, and the water container 41 continuously generates supplementary steam, ensuring that the supplementary steam fills the space between the inner pot 4 and the temperature detection device 34. At this time, the temperature detection device 34 detects the steam temperature T, and detects that the steam temperature T is continuously rising. Then, the relationship of steam temperature T is determined: T≥T2. 设 If the condition is met, the steam temperature T reaches the second preset temperature T2. 设 If the temperature is detected by the water container 41, it is determined that the water container 41 has generated the desired temperature of supplementary steam; if not, the process returns to the step of controlling the water container heating device 42 to continue heating. In this way, the state of the supplementary steam in the water container 41 is confirmed based on the steam temperature detected by the temperature detection device 34.

[0094] like Figure 13 As shown, cooking begins, and cooking appliance 1 starts heating P according to its rated power. 额定 Heating. The inner pot heating device 5 and the water container heating device 42 are heated simultaneously to heat the inner pot 4 and the water container 41 at the same time. During heating, the inner pot 4 continuously generates cooking steam, and the water container 41 continuously generates supplementary steam. The temperature detection device 34 detects the steam temperature T. Because cooking steam and / or supplementary steam flow into the channel space where the temperature detection device 34 is located, the detected steam temperature T continues to rise. Then, the relationship of steam temperature T is determined: T≥T1. 设 If the condition is met, the steam temperature T reaches the first preset temperature T1. 设 Then proceed to the next step: control the inner pot heating device 5 to stop heating for the first preset time S1. 设If the determination is negative, the process returns to the step of controlling the heating of the inner pot heating device 5 and the water container heating device 42. After the inner pot 4 stops heating for a period of time, the steam temperature detected by the temperature detection device 34 is the temperature of the supplementary steam generated by the heating of the water container 41.

[0095] Next, the water container heating device 42 is controlled to continuously heat, and the water container 41 continuously generates supplementary steam, ensuring that the supplementary steam fills the space between the inner pot 4 and the temperature detection device 34. At this time, the temperature detection device 34 detects the steam temperature T, and detects that the steam temperature T is continuously rising. Then, the first preset time period Δt1 is calculated based on the detected steam temperature T. 设 The temperature change ΔT. Next, determine the relationship between the steam temperature T and ΔT: ΔT ≥ ΔT 设 If the condition is met, it is determined that the water container 41 has generated supplementary steam at the desired temperature; if it is not met, the process returns to the step of controlling the water container heating device 42 to continue heating. In this way, the state of the supplementary steam in the water container 41 is confirmed based on the steam temperature change obtained by the temperature detection device 34.

[0096] The following is combined Figure 14 The description confirms the status of the steam in the water container 41.

[0097] like Figure 14 As shown, the control device is configured (i.e., the control method includes) to control the heating of the inner pot heating device 5 and the water container heating device 42, that is, to control the heating of the inner pot 4 and the water container 41. The water and food in the inner pot 4 are heated to generate cooking steam, and the water in the water container 41 is heated to generate supplementary cooking steam. After a certain amount of cooking steam accumulates in the inner pot 4, it flows into the cooking steam exhaust channel P2; the supplementary cooking steam first flows into the inner pot 4 through the supplementary cooking steam supply channel P1, and after a certain amount accumulates in the inner pot 4, it flows into the cooking steam exhaust channel P2.

[0098] The control device is configured to stop heating the water container heating device 42 for a second preset time S2 during the period when the inner pot heating device 5 is continuously heating. 设 The inner pot 4 continues to heat, generating a certain amount of cooking steam. To ensure that the temperature detection device 34 detects the temperature of the cooking steam, it is necessary to stop the generation of supplementary steam, allowing the cooking steam to fill the inner pot 4. Since it takes a certain amount of time for the cooking steam to fill the inner pot 4, a second preset time S2 is set to stop heating the water container 41. 设 Cooking steam re-flows into the channel space where the temperature detection device 34 is located (i.e., cooking steam exhaust channel P2). At this time, the cooking steam exhaust channel P2 is filled with cooking steam, with little or no supplementary cooking steam. Optionally, the second preset duration S2 设 It can be 20~300 seconds, for example, the second preset duration S2. 设Suitable values ​​are 20 seconds, 50 seconds, 60 seconds, 80 seconds, 100 seconds, 150 seconds, 200 seconds, 250 seconds, and 300 seconds.

[0099] The control device is configured to determine, based on the detected steam temperature T, that the inner pot 4 has generated cooking steam at the desired temperature. Since the cooking steam fills the channel space where the temperature detection device 34 is located, the temperature detection device 34 detects the temperature of the cooking steam.

[0100] Optionally, the control device is configured to determine whether the detected steam temperature T is greater than or equal to a third preset temperature T3. 设 If the determination is yes, it means that the cooking steam and / or supplementary steam have accumulated to a certain amount and reached the preset temperature, then the water container heating device 42 is controlled to stop heating for a second preset time S2. 设 If the determination is negative, then the heating of the inner pot heating device 5 and the water container heating device 42 is maintained, that is, the process returns to the step of controlling the heating of the inner pot heating device 5 and the water container heating device 42.

[0101] The control device is configured to stop heating the water container heating device 42 for a second preset time S2. 设 Then, the inner pot heating device 5 is controlled to continuously heat. This ensures that the space between the inner pot 4 and the temperature detection device 34 is filled with cooking steam, and that the temperature of the cooking steam continuously rises. When the inner pot 4 is continuously heated for a certain period of time, the steam temperature T detected by the temperature detection device 34 can reach the desired temperature of the cooking steam. The duration of continuous heating of the inner pot 4 can be 30~120 seconds, for example, suitable values ​​such as 30 seconds, 50 seconds, 60 seconds, 80 seconds, 100 seconds, 120 seconds, etc.

[0102] Based on the detected steam temperature T, it is determined that the inner pot 4 has generated cooking steam at the desired temperature. The control device is configured to determine whether the steam temperature T is greater than or equal to a fourth preset temperature T4. 设 If the determination is yes, then it is confirmed that the inner pot 4 has generated cooking steam at the desired temperature; if the determination is no, then the inner pot 4 continues to heat, i.e., the process returns to the step of controlling the inner pot heating device 5 to continue heating. Fourth preset temperature T4 设 The desired cooking steam temperature is preset, and the state of the cooking steam inside the inner pot 4 is confirmed based on the steam temperature point. When the steam temperature T reaches the fourth preset temperature T4... 设 This indicates that the inner pot 4 has generated cooking steam at the desired temperature. The method for confirming the steam temperature point is relatively intuitive and easy to understand; the steam temperature directly reflects the desired cooking steam temperature. The inner pot 4 continues to heat for a certain period, for example, 30-120 seconds, until the steam temperature T reaches the fourth preset temperature T4. 设 .

[0103] It should be noted that the cooking process includes the above-mentioned multiple stages, with the third preset temperature T3. 设 Second preset duration S2 设 Fourth preset temperature T4 设 The values ​​of these preset parameters can be set differently in these stages. For example, the first preset temperature T1 in the water absorption stage... 设 The first preset temperature T1 during the heating phase 设 Different. Within the same stage, the fourth preset temperature T4... 设 Higher than the third preset temperature T3 设 .

[0104] The following is combined Figure 14 A detailed description of the methods for controlling cooking steam.

[0105] like Figure 14 As shown, cooking begins, and cooking appliance 1 starts heating P according to its rated power. 额定 Heating. The inner pot heating device 5 and the water container heating device 42 are simultaneously heated to heat both the inner pot 4 and the water container 41. During heating, the inner pot 4 continuously generates cooking steam, and the water container 41 continuously generates supplementary steam. The temperature detection device 34 detects the steam temperature T. As cooking steam and / or supplementary steam flow into the channel space where the temperature detection device 34 is located, the detected steam temperature T continuously rises. Then, the relationship between the steam temperature T and T is determined: T ≥ T3. 设 If the condition is met, the steam temperature T reaches the third preset temperature T3. 设 Then proceed to the next step: control the water container heating device 42 to stop heating for the second preset time S2. 设 If the determination is negative, the process returns to the step of controlling the heating of the inner pot heating device 5 and the water container heating device 42. After the water container 41 stops heating for a period of time, the steam temperature detected by the temperature detection device 34 is the temperature of the cooking steam generated by the heating of the inner pot 4.

[0106] Next, the inner pot heating device 5 is controlled to continue heating, and the inner pot 4 continuously generates cooking steam, ensuring that the cooking steam fills the space between the inner pot 4 and the temperature detection device 34. At this time, the temperature detection device 34 detects the steam temperature T, and detects that the steam temperature T is continuously rising. Then, the relationship between the steam temperature T and T is determined: T ≥ T4. 设 If the condition is met, the steam temperature T reaches the fourth preset temperature T4. 设 If the temperature is detected by the inner pot 4, it is determined that cooking steam at the desired temperature has been generated; if not, the process returns to the step of controlling the inner pot heating device 5 to continue heating. In this way, the state of cooking steam in the inner pot 4 is confirmed based on the steam temperature detected by the temperature detection device 34.

[0107] The sequence of steps in this embodiment can be adjusted, combined, or reduced according to actual needs. The terminal units in this embodiment can be integrated, further divided, or reduced according to actual needs. The processes described in all the preferred embodiments above are merely examples. Unless adverse effects occur, various processing operations can be performed in a different order than the above-described processes. The sequence of steps in the above processes can also be added, combined, or reduced according to actual needs.

[0108] 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.

[0109] 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 cooking utensil, characterized in that, The cooking appliance includes: pot body; A lid, which is openable and closable and forms a cooking cavity between the two, is provided with a centralized temperature sensing space, and has the following features: A supplementary cooking steam supply passage for supplying supplementary cooking steam, wherein the supplementary cooking steam supply passage has a supplementary cooking steam outlet communicating with the food cooking chamber; and A cooking steam venting passage for allowing cooking steam to pass through, the cooking steam venting passage having a cooking steam inlet communicating with the food cooking chamber; and A temperature detection device, wherein the temperature detection device is used to detect the temperature of the supplementary steam and the cooking steam at different time periods; The supplementary steam outlet and the cooking steam inlet are located in the centralized temperature detection space, and the temperature detection device is also located in the centralized temperature detection space.

2. The cooking utensil according to claim 1, characterized in that, The centralized temperature detection space refers to a space where the supplementary steam outlet is located adjacent to or next to the cooking steam inlet, and the distance between the temperature detection device and the supplementary steam outlet is approximately equal to the distance between the temperature detection device and the cooking steam inlet.

3. The cooking utensil according to claim 2, characterized in that, The centralized temperature detection space refers to the initial section of the cooking steam exhaust channel being roughly parallel to the input section of the supplementary cooking steam supply channel.

4. The cooking utensil according to claim 2, characterized in that, The supplementary cooking steam supply channel is composed of a supplementary cooking steam channel assembly, which includes an output end component. The supplementary cooking steam outlet is located adjacent to or next to the cooking steam inlet on the output end component.

5. The cooking utensil according to claim 3, characterized in that, The supplementary cooking steam supply channel is composed of a supplementary cooking steam channel assembly, which includes an output end component. The initial section of the cooking steam exhaust channel and the input section of the supplementary cooking steam supply channel are both located on the output end component and are approximately parallel to each other.

6. The cooking utensil according to claim 2, characterized in that, The supplementary cooking steam supply channel is composed of a supplementary cooking steam channel assembly, which includes an output end component that forms a cooking steam outlet. The temperature detection device is located near the cooking steam outlet, or the temperature detection device extends at least partially into the cooking steam exhaust channel.

7. The cooking utensil according to claim 6, characterized in that, The cover includes a cover body, the cover body is provided with an output section of the cooking steam exhaust channel, the output end component has an upper deformable part, the upper deformable part is connected to the output section of the cooking steam exhaust channel, and the upper end of the upper deformable part forms the cooking steam outlet.

8. The cooking utensil according to any one of claims 1 to 7, characterized in that, The supplementary cooking steam supply channel is composed of a supplementary cooking steam channel assembly, which is detachably mounted on the cover.

9. The cooking utensil according to any one of claims 1 to 7, characterized in that, It also includes a removable cover assembly that is detachably disposed on the cover body, and the supplementary cooking steam supply channel is composed of a supplementary cooking steam channel assembly, which is detachably disposed on the removable cover assembly.

10. The cooking utensil according to claim 9, characterized in that, The removable cover assembly includes: Cover plate; A cover plate seat, wherein the cover plate seat is connected to the cover plate; The supplementary steam passage assembly includes a main body component for the supplementary steam passage, which spans across the cover plate and the cover plate seat. The supplementary steam passage assembly also includes: Output terminal component, the output terminal component being detachably disposed on the cover plate; and / or A steam generating end component, which is detachably disposed on the cover plate seat.

11. The cooking utensil according to claim 10, characterized in that, The main component of the supplementary steam channel and the steam generating end component are detachably plugged in, overlapped, or connected to each other.

12. The cooking utensil according to claim 10, characterized in that, The main component of the supplementary steam channel and the output end component are detachably plugged in, overlapped, or connected to each other.

13. The cooking utensil according to claim 10, characterized in that, The steam generating end component forms an initial section constituting the supplementary cooking steam supply channel. The bottom end of the steam generating end component is open to form a supplementary cooking steam inlet, and the top end of the steam generating end component is closed to form a guide top wall.

14. The cooking utensil according to claim 10, characterized in that, The cooking appliance also includes a cooking steam channel component, which forms the output section of the cooking steam exhaust channel. The cooking steam channel component is arranged vertically, and the temperature detection device is installed through the side wall of the cooking steam channel component.

15. The cooking utensil according to claim 10, characterized in that, The cover also includes an infrared heating device for radiating infrared rays into the food cooking cavity. The infrared heating device occupies at least the central area inside the cover. The centralized temperature detection space is located in the area of ​​the cover corresponding to the rear of the food cooking cavity.

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