Cover body and cooking utensil

Abstract

The utility model discloses a cover body and a cooking utensil, the cover body comprises a cooking steam temperature measuring device and a steam channel assembly, and the cooking steam temperature measuring device comprises a temperature measuring element; the steam channel assembly comprises a channel bottom shell and a channel top plate, the channel top plate is connected with the channel bottom shell, a complementary cooking steam supply channel and a cooking steam discharge channel are formed between the channel top plate and the channel bottom shell, a temperature measuring hole is formed in the channel bottom shell or the channel top plate, and at least one part of the temperature measuring element extends into the cooking steam discharge channel through the temperature measuring hole. According to the steam channel assembly, a complementary cooking steam supply channel and a cooking steam discharge channel are integrated in one assembly structure, and meanwhile, a cooking steam temperature measuring element detects the temperature of cooking steam in the cooking steam discharge channel; according to the cover body structure in the design scheme, related structures of three technical functions of supplementary cooking steam supply, cooking steam discharge and cooking cavity steam temperature detection are ingeniously adjusted and integrated, the cover body and / or cover plate structure is simplified, and the production process and the assembly process of the cover plate are reduced.

Description

TECHNICAL FIELD

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

[0002] Existing cooking appliances such as electric rice cookers have a temperature measuring element in the cover body for detecting the temperature of cooking steam. The temperature measuring element is generally arranged at a through hole of a heat preservation plate and extends into a cooking cavity to contact the cooking steam. The temperature measuring element occupies the area of the heat preservation plate, which makes the assembly of the heat preservation plate more troublesome and affects the layout of devices such as heating devices on the cover body.

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

[0004] A series of simplified concepts are introduced in the summary part of the application, which will be further described in detail in the detailed description part. The summary part of the application does not mean to try to limit the key features and necessary technical features of the claimed technical solution, and even less to determine the protection scope of the claimed technical solution.

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

[0006] a cooking steam temperature measuring device comprising a temperature measuring element; and

[0007] a steam passage assembly comprising a passage bottom shell and a passage top plate, the passage top plate being connected to the passage bottom shell and forming a cooking steam exhaust passage and a cooking steam supply passage between the passage bottom shell and the passage top plate,

[0008] wherein the passage bottom shell or the passage top plate is provided with a temperature measuring hole, and at least a part of the temperature measuring element extends into the cooking steam exhaust passage through the temperature measuring hole.

[0009] According to the scheme, the steam channel assembly integrates the cooking steam supply channel and the cooking steam discharge channel in one assembly structure, and the temperature measuring element of the cooking steam detects the temperature of the cooking steam in the cooking steam discharge channel. The cover structure of the design scheme ingeniously adjusts and integrates the three technical functions of cooking steam supply, cooking steam discharge, and cooking steam temperature detection in the cooking cavity, simplifies the cover and / or cover plate structure, reduces the production and assembly processes of the cover plate, and can accurately determine the steam temperature in the cooking cavity through the electric control program setting, thereby providing a control signal for the cooking process. Moreover, the temperature measuring element is arranged away from the cooking area of the cover / cover plate, leaving more cooking area and space above to layout functional devices such as heating devices, thereby improving the utilization rate of the internal space of the cover.

[0010] Optionally, the channel bottom shell is provided with a cooking steam inlet of the cooking steam discharge channel, and the temperature measuring hole is arranged adjacent to the cooking steam inlet, so that the temperature measuring element is located close to the cooking steam inlet. According to the scheme, the steam temperature near the cooking steam inlet is basically the same as the temperature of the steam in the cooking cavity; the temperature measuring element detects the steam temperature near the cooking steam inlet, so that the steam temperature in the cooking cavity can be truly reflected, and the steam temperature is more accurate, thereby quickly and accurately controlling the temperature.

[0011] Optionally, the temperature measuring hole is arranged on the channel top plate and located on the upper side of the cooking steam inlet, and the head of the temperature measuring element faces the cooking steam inlet. According to the scheme, the head of the temperature measuring element faces the cooking steam inlet, so that the steam flow flows towards the head, and the head of the temperature measuring element contacts the newly-inflown steam from the cooking steam inlet the fastest, thereby further improving the accuracy of temperature measurement and facilitating quick and accurate temperature control.

[0012] Optionally, the channel bottom shell is provided with a cooking steam inlet of the cooking steam discharge channel, and the cooking steam inlet is located at the front end of the channel bottom shell in the longitudinal direction, and the temperature measuring hole is located at the front end of the channel bottom shell or the channel top plate in the longitudinal direction. According to the scheme, the space of the steam channel assembly in the longitudinal direction can be better utilized to arrange the cooking steam discharge channel with a longer extension path, so as to miniaturize the size of the steam channel assembly in the longitudinal direction.

[0013] Optionally, the cover further includes a cover body, the steam channel assembly is located on the lower side of the cover body, and the cooking steam temperature measuring device is located on the upper side of the steam channel assembly and is mounted to the cover body. According to the scheme, the cooking steam temperature measuring device and the steam channel assembly are not fixedly connected, and the two can be separated; the position of the cooking steam temperature measuring device does not hinder the assembly of the steam channel assembly, and the steam channel assembly can be easily assembled to the cover body from bottom to top.

[0014] Optionally, the temperature measuring hole is arranged on the channel top plate, the temperature measuring element extends into the temperature measuring hole from the upper side of the channel top plate, and at least the channel bottom shell of the steam channel assembly is detachable from or mountable to the lower side of the cover body. According to this scheme, the position of the cooking steam temperature measuring device does not affect the dismounting of at least the channel bottom shell, so that the dismounting of at least the channel bottom shell can be easily operated, the dismounting efficiency is high, and the user can easily clean the steam channel frequently.

[0015] Optionally, the channel top plate is provided with a cooking steam outlet of the cooking steam discharge channel, the cooking steam outlet is away from the temperature measuring hole and arranged at the rear of the channel top plate. According to this scheme, the cooking steam outlet is arranged at a position away from the temperature measuring hole, so that the temperature measurement of the temperature measuring element is not affected by the airflow fluctuation, further improving the accuracy of the temperature measurement, and facilitating rapid and accurate temperature control.

[0016] Optionally, the cooking steam temperature measuring device further comprises a temperature measuring sealing ring, the temperature measuring sealing ring is sleeved on the temperature measuring element and abuts against the channel bottom shell or the channel top plate provided with the temperature measuring hole. According to this scheme, a seal can be formed at the temperature measuring hole by means of the temperature measuring sealing ring, so as to avoid the inflow of steam from between the cooking steam temperature measuring device and the steam channel assembly into the interior of the cover body, causing a safety hazard.

[0017] Optionally, the cover body further comprises a top heating device, and the steam channel assembly is arranged in parallel with the top heating device in the horizontal direction. According to this scheme, the temperature measuring element can avoid the area where the top heating device transmits heat to the cooking cavity, and the temperature measuring element can be free from the influence of the heat generated by the top heating device during cooking, so that it can detect the accurate steam temperature, the temperature measurement accuracy is higher, so as to rapidly and accurately control the temperature and adjust the heating temperature of the food, ensuring better taste of the food.

[0018] The top heating device is an electric heating device, an electromagnetic heating device or an infrared heating device for radiating infrared rays to the cooking cavity. According to this scheme, the electric heating device is simple and has low manufacturing cost; the electromagnetic heating device has high thermal efficiency, is more energy-saving than the electric heating, and has fast heating speed, so that the object can be quickly heated to the required temperature; the infrared heating can effectively heat the surface layer of the food and make the food evenly heated, so as to stimulate the aroma of the food.

[0019] Optionally, the cover further comprises a top heating device, the top heating device comprises a radiation plate and a heating assembly for heating the radiation plate, the radiation plate radiates infrared rays to the cooking cavity after being heated, and the cover further comprises a cover plate located at the lower side of the top heating device and the steam passage assembly. The cover plate is provided with an opening for the infrared rays to pass through, and the lower surface of the radiation plate exposed from the opening forms the top surface of the cooking cavity. Alternatively, the cover plate is at least partially transparent to light so that the infrared rays can pass through. According to the present scheme, the radiation plate is relatively hard and is not easy to be damaged, and no additional structure needs to be designed to protect it, so that the cover assembly is simple in structure and low in cost. In the scheme in which the cover plate is provided with an opening, the temperature of the radiation plate itself is relatively high, which can effectively prevent condensate water from being generated on the lower surface of the radiation plate. In the scheme in which the cover plate is at least partially transparent to light, the radiation plate is shielded by the cover plate, the structure of the inner side of the cover is simple, and the overall appearance of the inner side of the cover is better.

[0020] Optionally, the passage bottom shell is provided with a supplementary cooking steam outlet of the supplementary cooking steam supply passage, and the supplementary cooking steam outlet is located at the front end of the passage bottom shell in the longitudinal direction. According to the present scheme, the space of the steam passage assembly in the longitudinal direction can be better utilized to arrange the supplementary cooking steam supply passage with a relatively long extension path in the design, so that the steam passage assembly is miniaturized in the longitudinal direction.

[0021] Optionally, the cover comprises a steam generating device, and the passage top plate is provided with a steam inlet port for communicating with the steam generating device. Alternatively, the passage bottom shell is provided with a steam inlet port for communicating with the steam generating device of the pot body, and the steam inlet port is located at the side end of the passage bottom shell in the transverse direction. According to the present scheme, the steam inlet port on the passage top plate is suitable for the upper side steam inlet, and the steam inlet port on the passage bottom shell is suitable for the lower side steam inlet. The structure of the steam passage assembly is not limited by the position of the steam generating device, and the structure of the steam passage assembly is applicable regardless of whether the steam generating device is located on the cover or the pot body.

[0022] Optionally, the cover further comprises a detachable cover assembly and a top heating device, the detachable cover assembly is detachably mounted on the cover, the top heating device and the steam passage assembly are located at the upper side of the detachable cover assembly, and at least the passage bottom shell is mounted on the detachable cover assembly to be detached from or mounted to the cover together with the detachable cover assembly. According to the present scheme, at least the passage bottom shell and the detachable cover assembly can be integrated as a whole and detached from the cover together to clean the two steam passages. The detachment and mounting on the cover are completed in one step, and the detachment and mounting process is simple and efficient.

[0023] Optionally, the cover further includes a detachable cover assembly, which includes a cover plate and a cover plate seat connected to the cover plate, with the steam channel assembly spanning the cover plate and the cover plate seat. According to this design, the rear space outside the cooking area of ​​the detachable cover assembly can be better utilized to arrange a steam channel with a longer extension path, reducing the area ratio of the steam channel assembly in the cover plate.

[0024] According to another aspect of this application, a cooking appliance is provided, comprising a lid and a pot body as described in any of the preceding aspects, wherein the lid is closable and detachable from the pot body to form a cooking cavity between the lid and the pot body. According to this solution, a steam channel assembly integrates a supplementary steam supply channel and a cooking steam exhaust channel into a single component structure. Simultaneously, a temperature sensing element for the cooking steam detects the temperature of the cooking steam within the cooking steam exhaust channel. This design cleverly integrates and adjusts the related structures of the three technical functions: supplementary steam supply, cooking steam exhaust, and cooking cavity steam temperature detection.

[0025] Optionally, the cooking appliance further includes a steam generator, which generates supplementary steam and is located on the lid or the pot body, thereby supplying the supplementary steam into the cooking cavity via the steam channel assembly. According to this solution, high-temperature steam can be delivered into the cooking cavity to heat and moisten the food inside, preventing it from drying out and turning yellow, and improving its texture. Attached Figure Description

[0026] 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.

[0027] In the attached image:

[0028] Figure 1 A perspective view of a cooking appliance according to this application, wherein the lid is in a closed state;

[0029] Figure 2 for Figure 1 Another perspective view of the cooking appliance shown, with the lid in the open position;

[0030] Figure 3 for Figure 1 An exploded 3D view of the cooking utensils shown;

[0031] Figure 4 for Figure 1 A cross-sectional view of the cooking appliance shown, wherein the tangent of the section is parallel to the line connecting the center line extending in the front-back direction of the lid and the center line of the supplementary steam supply channel.

[0032] Figure 5 forFigure 1 Another cross-sectional view of the cooking appliance shown, wherein a tangent of the cross-section extends parallel to a centerline of the front-to-rear direction of the cover body;

[0033] Figure 6 For Figure 5 An enlarged view of a portion of the cooking appliance shown;

[0034] Figure 7 For Figure 5 An exploded perspective view of the top heating device and the inner liner shown;

[0035] Figure 8 For Figure 5 A perspective view of the top heating device and the cover body shown;

[0036] Figure 9 For Figure 5 An exploded perspective view of the steam channel assembly and the detachable cover assembly shown;

[0037] Figure 10 For Figure 5 A perspective view of the steam channel assembly and the detachable cover assembly shown;

[0038] Figure 11 For Figure 5 A bottom view of the steam channel assembly and the detachable cover assembly shown;

[0039] Figure 12 For Figure 5 A cross-sectional view of the steam channel assembly and the detachable cover assembly shown;

[0040] Figure 13 For Figure 5 A top view of the steam channel assembly and the detachable cover assembly shown, wherein the channel top plate is removed;

[0041] Figure 14 For Figure 5 Another exploded perspective view of the steam channel assembly and the detachable cover assembly shown;

[0042] Figure 15 For Figure 1 Another exploded perspective view of the cooking appliance shown, wherein the face cover assembly is removed;

[0043] Figure 16 For Figure 6 An enlarged view of a portion of the cover body at the cooking steam temperature measuring device shown.

[0044] BRIEF DESCRIPTION OF THE DRAWINGS:

[0045] 1 cooking appliance 2 pot body

[0046] 3 cover body 4 inner pot

[0047] 5 inner pot heating device 6 pivot shaft

[0048] 7 pot opening sealing ring 8 cover main body

[0049] 9 inner liner 10 face cover assembly

[0050] 11 user interaction area 12 torsion spring

[0051] 13 detachable cover assembly 14 cover plate

[0052] 15 cover plate seat 16 outer shell

[0053] 17 middle plate 18 base

[0054] 20 inner liner through hole 21 cover plate through hole

[0055] 22 support portion 23 through hole sealing ring

[0056] 24 pressing ring 25 protruding portion

[0057] 26 recessed portion 27 steam valve

[0058] 28 steam sealing element 29 seat support portion

[0059] 30 cooking steam docking cover 31 cooking steam docking sealing element

[0060] 32 steam passing portion passing hole 33 fixed cover

[0061] 34 steam passing area sealing element 35 cooking steam inlet

[0062] 36b rear end portion 37 cylindrical wall

[0063] 40 steam generating device 41 water container

[0064] 42 water container heating device 50 cooking steam temperature measuring device

[0065] 51 temperature measuring element 52 temperature measuring sealing ring

[0066] 53 fixing frame

[0067] 100 top heating device 110 radiation plate

[0068] 111 avoidance notch 120 heating assembly

[0069] 130 peripheral portion sealing ring 140 fixing element

[0070] 200 steam passage assembly 201 steam inlet

[0071] 202 cooking steam outlet 203 cooking steam inlet

[0072] 204 cooking steam outlet 205 passage bottom shell

[0073] 206 channel top plate 207 cooking steam channel seal

[0074] 208 complementary cooking steam channel member 209 channel wall

[0075] 210 side end portion 211 front end portion

[0076] 212 fixed buckle 213 movable buckle

[0077] 214 bayonet 215 first protrusion

[0078] 216 second protrusion 217 steam passing portion

[0079] 218 steam passing port 219 temperature measuring hole

[0080] P1 steam channel P11 complementary cooking steam supply channel

[0081] P12 cooking steam exhaust channel P2 exhaust steam channel DETAILED DESCRIPTION

[0082] In the following description, numerous specific details are set forth to provide a more thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present application.

[0083] For a thorough understanding of the present application, reference is made to the following detailed description. It is apparent that the application can be practiced without specific details, which are well known to a person of ordinary skill in the art. The preferred embodiments of the application will be described in sufficient detail so as to enable those skilled in the art to practice the application.

[0084] It should be noted that the use of the term "about" in describing the application herein is intended to encompass variations and permutations of the specific numerical values stipulated in this detailed description. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0085] The ordinal numbers such as "first" and "second" cited in the present application are merely for identification and have no other meaning, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component". It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and similar expressions used herein are for illustrative purposes only and are not limiting.

[0086] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in various different forms, and should not be construed as being limited to only the embodiments set forth herein. It should be understood that the embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0087] As shown in Figures 1 to 5 The present application provides a cooking appliance 1 including a pot body 2 and a cover body 3. The pot body 2 has a cylindrical inner pot receiving portion. An inner pot 4 can be fixedly arranged at the inner pot receiving portion, or can be freely put into or taken out of the inner pot receiving portion to facilitate cleaning of the inner pot 4. The inner pot 4 is usually made of a metal material and has a circular opening on its upper surface for containing materials to be heated, such as rice, soup, etc. The pot body 2 includes an inner pot heating device 5, such as a heating plate, for heating the inner pot 4. It can be understood that the cooking appliance 1 according to the present application can be an electric rice cooker, an electric pressure cooker, or other cooking appliance 1, and the cooking appliance 1 can have various functions in addition to the function of cooking rice, such as cooking porridge, etc.

[0088] The cover body 3 has a shape substantially corresponding to that of the pot body 2. The cover body 3 is arranged on the pot body 2 in a hingable manner. In one example, the cover body 3 is hingedly connected to the pot body 2 by a pivot shaft 6, and can be freely pivoted about a pivot axis defined by the pivot shaft 6 between a closed position and an open position relative to the pot body 2 to facilitate closing and opening of the pot body 2. In another example, the cover body 3 is connected to the pot body 2 by fasteners that cooperate with each other and are easy to disassemble, so that the two are tightly connected together during cooking, and are disassembled into two independent whole bodies during cleaning, for example. When the cover body 3 is closed on the pot body 2, it covers the inner pot 4 and forms a cooking cavity with the inner pot 4. The cover body 3 usually also has a pot opening sealing ring 7 made of, for example, rubber material, which is arranged between the cover body 3 and the inner pot 4 to seal the cooking cavity when the cover body 3 is in the closed state.

[0089] It should be noted that the directional terms used herein in describing various components, parts, etc. of the cooking appliance 1, such as "upper", "lower", "upper side", "lower side", "upward", "downward", "upwards", "downwards", etc. are relative to the cooking appliance 1 in a horizontal placement, upright state and with the lid body 3 in a closed state.

[0090] The lid body 3 basically comprises a lid main body 8. The lid main body 8 comprises an inner liner 9 and a face cover assembly 10. The face cover assembly 10 is arranged on the upper side or outer side of the inner liner 9 and can cover the inner liner 9. The upper surface of the face cover assembly 10 is provided with a user interaction area 11 for user operation. The inner liner 9 can be connected with the face cover assembly 10 by suitable means such as clamping, fastening with fasteners such as screws, bonding, etc. The pivot shaft 6 is arranged on the inner liner 9 and is sleeved with a torsion spring 12 so as to automatically open the lid.

[0091] In one example, the lid body 3 further comprises a detachable lid assembly 13. The detachable lid assembly 13 is arranged on the lower side of the lid main body 8 and is detachably connected with the lid main body 8 in the form of an assembly, so that the detachable lid assembly 13 is detachably mounted on the lid body 3 from the lower side. When the detachable lid assembly 13 needs to be cleaned, the detachable lid assembly 13 can be detached from the lid body 3. Specifically, the detachable lid assembly 13 is arranged on the lower side or inner side of the inner liner 9 and is detachably connected to the inner liner 9. For example, the detachable lid assembly 13 is movably connected to the inner liner 9 by a plug-in and / or clamping structure. The detachable lid assembly 13 basically comprises a cover plate 14, a cover plate seat 15 and the aforementioned pot opening sealing ring 7. The cover plate 14 can be optionally a metal plate. At least part of the lower surface of the cover plate 14 forms the top surface of the cooking cavity. The cover plate seat 15 can detachably connect the cover plate 14 to the inner liner 9. The cover plate 14 can be connected with the cover plate seat 15 by other suitable means such as buckling or fastening with fasteners. Part of the pot opening sealing ring 7 is pressed between the cover plate 14 and the cover plate seat 15.

[0092] In another alternative example, the lid body 3 comprises the aforementioned cover plate 14, which is fixedly connected to the lid main body 8, specifically to the inner liner 9, so that the cover plate 14 is non-detachably mounted on the lid body 3.

[0093] The pot body 2 basically comprises an outer shell 16, a middle plate 17 arranged on the upper side of the outer shell 16 and a base 18 arranged on the lower side of the outer shell 16. The lower end of the outer shell 16 can be connected with the outer periphery of the middle plate 17 by suitable means such as clamping, fastening with fasteners such as screws, bonding, etc. The lower end of the outer shell 16 can be connected with the upper end of the base 18 by suitable means such as clamping, fastening with fasteners such as screws, bonding, etc. The outer shell 16, the middle plate 17 and the base 18 together enclose an inner pot receiving portion. The inner pot heating device 5 can be arranged between the base 18 and the bottom of the inner pot 4 and is connected to the base 18, so it is also called a bottom heating device. Alternatively, another inner pot heating device 5 can be arranged between the outer shell 16 and the side of the inner pot 4, so it is also called a side heating device.

[0094] The cooking appliance 1 of the present application also has the function of top heat radiation heating, the heat generated by the top heat source can be radiated to the food in the cooking cavity to heat the food from the top side. Specifically, the cover body 3 comprises a top heating device 100 located in the area corresponding to the inner pot 4 of the cover body 3, which can transmit heat to the cooking cavity by heat radiation. The top heating device 100 can be any suitable heating device such as an electric heating device, an electromagnetic heating device or an infrared heating device. The electric heating device can be an electric heating tube, an electric heating wire, an electric heating film or any suitable electric heating device. The electromagnetic heating device comprises an electromagnetic coil and a coil disc, the electromagnetic coil is wound on the coil disc, in this scheme, the cover plate 14 on the lower side of the coil disc is a metal member, the alternating magnetic field generated by the electromagnetic coil can act on the metal cover plate 14 below, so that the cover plate 14 itself generates heat to radiate heat to the cooking cavity. The illustrated example shows that the top heating device 100 is an infrared heating device for radiating infrared rays to the cooking cavity during cooking. The infrared rays radiated to the cooking cavity can effectively heat the surface food and make the food evenly heated, thereby stimulating the aroma of the food.

[0095] The cooking appliance 1 of the present application also has the function of steam cooking, high-temperature steam can be delivered to the cooking cavity to heat and moisten the food in the cooking cavity, for example, high-temperature steam is supplied to the cooking cavity during the holding stage, which can keep the food such as rice moist and prevent the food from drying and yellowing. Specifically, the cooking appliance 1 also comprises a steam generating device 40 for generating cooking steam to cook the cooking cavity. In order to deliver the cooking steam to the cooking cavity, the cover body 3 is provided with a cooking steam supply channel P11 communicating with the cooking cavity. The cooking steam supply channel P11 is used for supplying steam for cooking the cooking cavity, specifically, it can receive cooking steam from the steam generating device 40 and deliver cooking steam to the cooking cavity.

[0096] The steam generating device 40 can be arranged on the cover body 3 or the pot body 2. Figure 4 An example of the steam generating device 40 arranged on the pot body 2 is schematically shown. As Figure 4As shown, the steam generating device 40 basically comprises a water container 41 and a water container heating device 42. The water container 41 is arranged in the pot body 2 and is capable of storing water for generating the replenishment steam. Optionally, the water container 41 is located in the receiving cavity of the pot body 2 and protrudes from the upper surface of the pot body 2 to facilitate the removal of the water container 41 from the pot body 2. The water container 41 has a top opening for forming an outlet to allow the replenishment steam to overflow. The water container heating device 42 is usually arranged below the water container 41 and is used to heat the water in the water container 41 to generate the replenishment steam. The replenishment steam can enter the replenishment steam supply passage P11 and then enter the cooking cavity to keep the food such as rice in the inner pot 4 moist. When the steam generating device 40 is arranged in the cover body 3, the arrangement position and structure of the water container 41 and the water container heating device 42 are different from those of the example shown in the drawings. Figure 4

[0097] During cooking, the heating of the food and water in the inner pot 4 generates cooking steam. In order to exhaust the cooking steam to the external environment, the cooking utensil 1 is provided with a cooking steam exhaust passage P2 and a cooking steam exhaust passage P12 which is in communication with the cooking steam exhaust passage P2 and the cooking cavity. The cooking steam can first enter the cooking steam exhaust passage P12 and then be exhausted to the external environment through the cooking steam exhaust passage P2. Figure 5

[0098] For the infrared heating device, one example is that the infrared heating device can be an infrared electric heating tube. For example, the infrared electric heating tube is formed by encapsulating an infrared heating element in a glass tube. In this example, the cover body 3 further comprises a light-transmissive isolation plate arranged on the lower side of the infrared electric heating tube. Another alternative example is that the infrared heating device can be an electric heating film arranged on a plate-shaped member and capable of being electrified. In this example, the plate-shaped member for arranging the electric heating film is at least partially light-transmissive. Another alternative example is that, as shown in the example, the infrared heating device comprises a radiation plate 110 and a heating assembly 120 for heating the radiation plate 110. The heating assembly 120 generates heat which is transferred to the radiation plate 110. The radiation plate 110 can be heated to radiate infrared rays to the cooking cavity. The radiation plate 110 can be a ceramic plate, a carbon plate made of carbon material, etc. A light-transmissive isolation plate can be arranged on the lower side of the radiation plate 110. Alternatively, the radiation plate 110 is exposed in the cooking cavity, at least part of the lower surface of the radiation plate 110 forms the top surface of the cooking cavity, and further, at least part of the radiation plate 110 forms the top wall of the cooking cavity. The temperature of the radiation plate 110 can be controlled by controlling the power or heating temperature of the heating assembly 120.

[0099] The structure of the cover body 3 is further described by taking the example shown in the drawings as an example. As shown, Figure 3 Figure 7 ​​​As shown, the inner liner 9 has an inner liner through-hole 20, and the radiating plate 110 is installed at the inner liner through-hole 20. The cover plate 14 is disposed below the radiating plate 110. The cover plate 14 is partially provided with a cover plate through-hole 21. The cover plate through-hole 21 corresponds to the position of the radiating plate 110. In other words, the cover plate through-hole 21 is located directly below the radiating plate 110. The infrared rays generated by the radiating plate 110 can be radiated toward the inner pot 4 through the inner liner through-hole 20 and the cover plate through-hole 21. Alternatively, the cover plate 14 is at least partially transparent. The cover plate 14 can be made entirely of a transparent material such as glass, or the portion corresponding to the radiating plate 110 can be made of a transparent material. In this case, the cover plate 14 serves as an isolation plate.

[0100] like Figure 6 and Figure 7 As shown, the inner liner 9 may be provided with a support portion 22. The support portion 22 is disposed around the through hole 20 of the inner liner, and the support portion 22 forms a closed annular structure. The outer edge of the radiant plate 110 can overlap the bottom wall of the support portion 22 and abut against the side wall of the support portion 22. The support portion 22 can provide an upward supporting force to the radiant plate 110 and restrict the horizontal movement of the radiant plate 110, facilitating the fixation of the radiant plate 110. In one example, the support portion 22 can be recessed downward, and the radiant plate 110 is accommodated in the recessed support portion 22. In another example, the support portion 22 is a planar structure, i.e., it does not form a recess. A peripheral sealing ring 130 is fitted around the outer periphery of the radiant plate 110 to form a seal between the radiant plate 110 and the inner liner 9. The top heating device 100 also includes a fixing member 140. The fixing member 140 can be connected to the inner liner 9, and the outer edge of the radiant plate 110 is sandwiched between the fixing member 140 and the support portion 22. The fastener 140 may optionally be configured as a ring, which can be connected to the liner 9 by a suitable means such as snap-fit, fastener connection such as screws, welding, etc.

[0101] Additionally, the cover 3 may also include a through-hole sealing ring 23. The through-hole sealing ring 23 can be disposed around the periphery of the through-hole 21 of the cover plate and located on the side opposite to the side where the pot opening sealing ring 7 is located, specifically between the radiant plate 110 and the inner liner 9, abutting against the lower surface of the radiant plate 110. Forming a seal at the through-hole 21 of the cover plate prevents steam from entering the interior of the cover 3 through the gap between the radiant plate 110 and the cover plate 14, thereby improving the sealing effect of the cover 3. For example, a pressure ring 24 can be provided to clamp a portion of the through-hole sealing ring 23 between the pressure ring 24 and the cover plate 14, and the pressure ring 24 can be fixed to the cover plate 14 by a bendable clip.

[0102] The shape of the inner liner through hole 20, the shape of the cover plate through hole 21, the shape of the support portion 22, and the shape of the through hole sealing ring 23 correspond to the shape of the radiation plate 110. Exemplarily, the radiation plate 110 can be provided with an avoiding notch 111, and the inner liner 9 is provided with a protruding portion 25 protruding towards the center of the inner liner through hole 20, and the protruding portion 25 is engaged with the avoiding notch 111. Alternatively, the cover plate 14 can also be provided with a protruding portion 25, and the protruding portions 25 of the cover plate 14 and the inner liner 9 correspond in position. A part of the steam channel P1 can be arranged on the protruding portion 25. In this way, the area of the radiation plate 110 can be designed to be larger, and the steam channel P1 can also be arranged on one side of the radiation plate 110, specifically the back side, with a suitable area ratio. The steam channel P1 here includes the above-mentioned cooking steam supply channel P11 and / or the cooking steam exhaust channel P12.

[0103] In order to simplify the structure and optimize the use of the space in the cover body 3, the present application uses one component to jointly form the cooking steam supply channel P11 and the cooking steam exhaust channel P12, rather than using different components to form the two channels respectively. Specifically, the cover body 3 further includes a steam channel assembly 200 for forming the cooking steam supply channel P11 and the cooking steam exhaust channel P12. The two channels are independent of each other and not connected. The steam channel assembly 200 is located on the upper side of the cover plate 14 and the lower side of the inner liner 9. The steam channel assembly 200 is arranged in parallel with the top heating device 100 in the horizontal direction, specifically on the back side of the top heating device 100. As shown in Figure 8 The inner liner 9 has a recess 26 for accommodating the steam channel assembly 200. The recess 26 is located on the back side of the inner liner through hole 20 and is recessed upward from the lower surface of the inner liner 9. At least part of the steam channel assembly 200 is accommodated in the recess 26. The size and shape of the recess 26 are adapted to the outer contour of the steam channel assembly 200.

[0104] As shown in Figure 9 , Figure 10 and Figure 11 The steam channel assembly 200 is further provided with a steam receiving port 201 communicating with the cooking steam supply channel P11 and a cooking steam outlet 202. The steam receiving port 201 is used to receive steam from the steam generating device 40, and the cooking steam outlet 202 is used to communicate the cooking steam supply channel P11 with the cooking cavity. The position of the steam receiving port 201 corresponds to the outlet of the water container 41, specifically above the water container 41. Figure 4 The steam flow path is schematically indicated by arrows. Specifically, the steam generated after the water in the water container 41 is heated enters the cooking steam supply channel P11 through the steam receiving port 201, flows along the cooking steam supply channel P11, and enters the cooking cavity through the cooking steam outlet 202.

[0105] The steam passage assembly 200 is further provided with a cooking steam inlet 203 and a cooking steam outlet 204 which are in communication with the cooking steam discharge passage P12. The cooking steam inlet 203 is configured to communicate the cooking steam discharge passage P12 with the cooking cavity, and the cooking steam outlet 204 is configured to discharge steam in the cooking steam discharge passage P12. The lid body 8 is provided with the steam discharge passage P2 as described above. The cooking steam outlet 204 is positioned corresponding to the steam discharge passage P2 of the lid body 8. The cover plate 14 further comprises a steam valve 27 and a steam seal 28 which form the steam discharge passage P2 and are vertically disposed in the lid body 8. The steam seal 28 is disposed in the upwardly protruding cylindrical wall 37 of the lid body 8 and abuts against the bottom of the steam valve 27 and the upper surface of the steam passage assembly 200. Figure 5 The steam flow path is schematically indicated by arrows, i.e. steam in the cooking cavity enters the cooking steam discharge passage P12 via the cooking steam inlet 203, flows along the cooking steam discharge passage P12, and flows to the steam discharge passage P2 via the cooking steam outlet 204, and then is discharged to the ambient environment.

[0106] The steam passage assembly 200 comprises a passage bottom shell 205 and a passage top plate 206. The passage top plate 206 is positioned on the upper side of the passage bottom shell 205 and is attachable to the passage bottom shell 205. The steam seal 28 abuts against the upper surface of the passage top plate 206. The outer periphery of the passage bottom shell 205 and the passage top plate 206 correspond in shape and size, and the outer periphery of the passage bottom shell 205 and the passage top plate 206 is schematically shown as a substantially triangular shape in the drawings.

[0107] The passage bottom shell 205 and the passage top plate 206 are connected and form the cooking steam discharge passage P12 and the steam supply passage P11 for the steam supply to the cooking cavity therebetween. Further, the two steam passages P1 are partially formed by the passage bottom shell 205 or components thereon, and partially formed by the passage top plate 206 or components thereon. The steam passage assembly 200 comprises two passage seals, i.e. a cooking steam passage seal and a steam supply passage seal 207, for forming a seal at the cooking steam discharge passage P12 and the steam supply passage P11, respectively. In one example, the cooking steam discharge passage P12 and the steam supply passage P11 are provided in different regions of the passage bottom shell 205. In this example, the passage bottom shell 205 forms the bottom wall of the two steam passages P1, and the two passage seals are sandwiched at the passage walls at different positions, so that the passage bottom shell 205 and the passage top plate 206 enclose the two steam passages P1. Alternatively, the passage bottom shell 205 is provided with a pressing plate which forms the bottom wall of the two steam passages P1; in this arrangement, the pressing plate can be used to secure the passage seals which abut against the passage top plate 206. Thus, the pressing plate, the passage seals and the passage top plate 206 enclose the two steam passages P1.

[0108] Another example is shown in FIG. 6, in which the cooking steam supply passage P11 is provided inside the cooking steam discharge passage P12. In this example, the passage bottom shell 205 forms a bottom wall of the cooking steam discharge passage P12, so that the passage bottom shell 205 and the passage top plate 206 enclose the cooking steam discharge passage P12. The steam passage assembly 200 further includes a cooking steam passage member 208 provided between the passage bottom shell 205 and the passage top plate 206 for forming the cooking steam supply passage P11. Figure 9

[0109] In the example described above in which the passage bottom shell 205 forms a bottom wall of the steam passage P1, the passage bottom shell 205 is provided with a passage wall 209 extending upward from an upper surface of the passage bottom shell 205, the passage wall 209 enclosing a peripheral side wall of the steam passage P1.

[0110] The cover plate 14 needs to be made of food-grade material as it forms a top wall of the cooking cavity. The passage bottom shell 205 and the passage top plate 206 are separate members and can be made of different materials from the cover plate 14. The components used to enclose the steam passage P1, such as the passage bottom shell 205, the passage top plate 206, the bottom wall member and / or the cooking steam passage member 208 are also made of food-grade material. In this way, the top wall of the steam passage P1 can be formed without using the cover body 8, so that the cover body 8 does not need to be made of food-grade material, thereby saving material cost.

[0111] The steam passage assembly 200 is at least partially mounted on the removable lid assembly 13, so that the steam passage assembly 200 is at least partially removed from the lid body 3 together with the removable lid assembly 13 for cleaning the two steam passages P1. The cover plate through hole 21 is adjacent to the front end portion 36a of the removable lid assembly 13. The steam passage assembly 200 is arranged adjacent to the rear end portion of the removable lid assembly 13. The cover plate through hole 21 and the steam passage assembly 200 can be arranged in front and back order, with the cover plate through hole 21 in front and the steam passage assembly 200 in back, so that the cover plate through hole 21 can be designed to occupy a larger cooking area.

[0112] For the example shown, at least the passage bottom shell 205 is mounted on the removable lid assembly 13, so that at least the passage bottom shell 205 is removed from the lid body 3 together with the removable lid assembly 13. Specifically, the passage bottom shell 205 is connected with the removable lid assembly 13 to be removed from or mounted to the lid body 3 together with the removable lid assembly 13. In this way, at least the passage bottom shell 205 can be removed from the lid body 3 for cleaning the two steam passages P1. The passage top plate 206 can be separated from the passage bottom shell 205 to expose the inside of the steam passage P1 for better cleaning of the inside of the steam passage P1.

[0113] ​In the illustrated example, the channel top plate 206 is detachably connected with the channel bottom shell 205 to be detached from or mounted to the cover body 3 together with the channel bottom shell 205. When the steam channel P1 needs to be cleaned, the whole of the steam channel assembly 200 and the detachable cover assembly 13 can be detached from the cover body 3, and then the channel top plate 206 is detached from the channel bottom shell 205. In this way, part of the steam channel P1 on the channel top plate 206 is exposed, and part of the steam channel P1 on the channel bottom shell 205 is also exposed. The detachable cover assembly 13 and the channel bottom shell 205 detached from the cover body 3 can be cleaned by the user with water, and the channel top plate 206 detached from the cover body 3 can be cleaned by the user with water separately. The user can easily clean the steam channel P1, and the cleaning effect is good.

[0114] Alternatively, the channel top plate 206 is connected with the cover body 8. The channel top plate 206 covers the channel bottom shell 205, and the two can be connected without fixed connection. When the steam channel P1 needs to be cleaned, the whole of the channel bottom shell 205 and the detachable cover assembly 13 can be detached from the cover body 3. In this way, part of the steam channel P1 on the channel top plate 206 is exposed, and part of the steam channel P1 on the channel bottom shell 205 is also exposed. The detachable cover assembly 13 and the channel bottom shell 205 detached from the cover body 3 can be cleaned by the user with water, and the channel top plate 206 remaining on the cover body 3 can be cleaned by the user with water. In this scheme, the channel top plate 206 is butted against the channel bottom shell 205 on the detachable cover assembly 13 when the detachable cover assembly 13 is mounted to the cover body 3 to form a closed steam channel P1.

[0115] The channel bottom shell 205 is provided with the above-mentioned cooking steam outlet 203 and the cooking steam inlet 203. The channel top plate 206 is provided with the cooking steam outlet 204. In other examples not shown, the cover plate 14 can be provided with the above-mentioned cooking steam outlet 203 and the cooking steam inlet 203, and the channel bottom shell 205 is provided with a channel structure at positions corresponding to the steam inlet 201 and the cooking steam outlet 203. The channel structure is clamped with a sealing element between the channel structure and the cover plate 14. In the illustrated example in which the steam generation device 40 is arranged in the pot body 2, the channel bottom shell 205 is provided with the above-mentioned steam inlet 201 to introduce steam from the lower side. In the example in which the steam generation device 40 is arranged in the cover body 3, the channel top plate 206 is provided with the above-mentioned steam inlet 201 to introduce steam from the upper side.

[0116] The structure of the steam channel assembly 200 will be further described below taking the illustrated example as an example.

[0117] As Figure 12 and Figure 13As shown, the longitudinal direction and the lateral direction of the channel bottom shell 205 on the horizontal plane exceed the rear portion of the cover plate 14, specifically, the steam channel assembly 200 is arranged on the cover plate 14 and the cover plate seat 15. The steam inlet 201 is located at the lateral end 210 of the channel bottom shell 205 in the lateral direction. The steam generation device 40 is arranged at the corner of the kettle body 2 at the rear end, and the lateral end 210 of the channel bottom shell 205 in the lateral direction corresponds to the corner of the cover body 3. In this way, the position of the steam inlet 201 can be corresponded with the water container 41 of the steam generation device 40 up and down, and the steam enters the steam inlet 201 from the bottom to the top, so that the steam path between the steam inlet 201 and the water container 41 is short and straight. The at least one reheat steam outlet 202 is located at the front end 211 of the channel bottom shell 205 in the longitudinal direction. For the example shown in the figure, the reheat steam outlet 202 and the cooking steam inlet 203 are both arranged at the front end 211 of the channel bottom shell 205 in the longitudinal direction. The cooking steam outlet 204 is spaced apart from the cooking steam inlet 203 in the longitudinal direction and is on the longitudinal center line of the cover plate 14.

[0118] The reheat steam supply channel P11 is provided with the reheat steam outlet 202 at one end and the steam inlet 201 at the other end. In other words, the steam inlet 201 and the reheat steam outlet 202 are respectively located at the two ends of the reheat steam supply channel P11. Optionally, the reheat steam supply channel P11 is a straight channel, and the center line thereof has a preset angle with the center line of the cover plate 14 extending in the front-rear direction. Further, the reheat steam supply channel P11 is inclined relative to the longitudinal center line of the cover plate 14. It should be noted that in the example of the detachable cover assembly 13, the longitudinal center lines of the cover plate 14 and the detachable cover assembly 13 are collinear.

[0119] It should be noted that the term "longitudinal" or "longitudinal direction" used herein refers to the front-rear direction, and the term "lateral" or "lateral direction" refers to the left-right direction.

[0120] As Figure 14As shown, in order to fix the channel bottom shell 205 to the detachable lid assembly 13, the lid seat 15 comprises a plate-shaped seat support portion 29 which protrudes from the rear portion of the lid plate 14. The steam channel assembly 200 is arranged across the lid plate 14 and the seat support portion 29. The channel bottom shell 205 can be connected to the seat support portion 29 by channel welding, fastener connection such as screws, or any suitable means. The detachable lid assembly 13 is provided with a reheat steam docking lid 30 which can be closed on the top opening of the water container 41 when the lid body 3 is closed to the pot body 2. The reheat steam docking lid 30 is also provided with a reheat steam docking seal 31 for forming a seal between the water container 41 and the reheat steam docking lid 30 when the lid body 3 is closed. The reheat steam docking lid 30 is provided with a reheat steam inlet 35 through which reheat steam enters the reheat steam supply channel P11. The reheat steam docking lid 30 is connected to or integrally arranged at the region adjacent to the rear end portion 36b (see Figure 13 ) of the lid seat 15, specifically at the seat support portion 29.

[0121] The channel top plate 206 can be detachably connected to the channel bottom shell 205 by a buckle structure. The buckle structure comprises a fixed buckle 212 and a movable buckle 213 which correspond to different side edges of the steam channel assembly 200 respectively. The fixed buckle 212 is connected to the channel bottom shell 205 and is provided with a buckle opening 214. The movable buckle 213 is rotatably connected to the seat support portion 29. The channel top plate 206 is provided with a first protruding buckle 215 which cooperates with the fixed buckle 212 and a second protruding buckle 216 which cooperates with the movable buckle 213. The first protruding buckle 215 can be buckled into the buckle opening 214 of the fixed buckle 212, and the second protruding buckle 216 can be buckled from the upper side by the movable buckle 213. The seat support portion 29 is spaced apart and provided with an upwardly protruding column, and the movable buckle 213 is rotatably connected to the column. When assembling, the first protruding buckle 215 is buckled into the buckle opening 214 of the fixed buckle 212 first to realize the fixation of one side edge of the assembly, and then the movable buckle 213 is rotated to be buckled to the second protruding buckle 216 to realize the fixation of the other side edge of the assembly. When disassembling, the movable buckle 213 is unlocked first, and then the fixed buckle 212 is separated.

[0122] The channel bottom shell 205 comprises a downwardly protruding steam passing portion 217 which is provided with a steam passing opening 218 for communicating the steam channel P1 with the cooking cavity. The steam passing opening 218 comprises a reheat steam outlet 202 which communicates with the reheat steam supply channel P11 and / or a cooking steam inlet 203 which communicates with the cooking steam exhaust channel P12. That is, the reheat steam outlet 202 and / or the cooking steam inlet 203 are arranged at the steam passing portion 217. The illustrated example is that the reheat steam outlet 202 and the cooking steam inlet 203 are arranged at the steam passing portion 217. The lid plate 14 is provided with a steam passing portion passing hole 32, and the steam passing portion 217 can be arranged to pass through the steam passing portion passing hole 32.

[0123] The channel bottom shell 205 can be closer to the cover plate 14 at the downwardly protruding steam portion 217, which is limited in the steam portion passing hole 32, on one hand, the steam port 218 on the steam portion 217 can be communicated with the cooking cavity, on the other hand, the cover plate 14 limits the horizontal position of the channel bottom shell 205 at the steam portion 217, avoiding the horizontal movement of the channel bottom shell 205 relative to the cover plate 14.

[0124] The steam portion 217 is located at the front end 211 of the channel bottom shell 205 in the longitudinal direction. In design, the steam channel assembly 200 in the longitudinal direction can be better utilized to arrange the steam channel P1 with longer extension path, so as to miniaturize the size of the steam channel assembly 200 in the longitudinal direction, so that the size of the part of the steam channel assembly on the cover plate 14 is smaller, and the area ratio is smaller. The steam portion 217 is configured to be adapted in shape and size to the steam portion passing hole 32. The structure between the steam portion 217 and the cover plate 14 can be more compact, which is convenient to effectively limit the horizontal movement of the channel bottom shell 205 relative to the cover plate 14, and in addition, the overall appearance of the inside of the cover body 3 can be improved in shape.

[0125] The cover body 3 further comprises a fixed cover 33 and a steam area sealing member 34. The fixed cover 33 is separated from the steam portion 217 on both sides of the cover plate 14, and the fixed cover 33 is located on the lower side of the cover plate 14 to fix the steam portion 217 to the cover plate 14. The detachable cover assembly 13 further comprises a steam area sealing member 34. The steam area sealing member 34 is arranged between one of the fixed cover 33 and the steam portion 217 and the edge of the steam portion passing hole 32. For example, as shown in the example, the steam area sealing member 34 is arranged between the cover plate 14 and the steam portion 217 to form a seal between the cover plate 14 and the steam portion 217. The steam portion 217 is located in the steam portion passing hole 32 and connected with the fixed cover 33, and the periphery of the fixed cover 33 is larger than the steam portion passing hole 32, the edge of the steam portion passing hole 32 can be clamped between the steam portion 217 and the fixed cover 33, and the steam area sealing member 34 is clamped between the cover plate 14 and the steam portion 217. Alternatively, the fixed cover 33 is welded with the steam portion 217. Alternatively, the fixed cover 33 is connected with the steam portion 217 by threads. Alternatively, the fixed cover 33 is connected with the steam portion 217 by fasteners.

[0126] One of the outstanding optimization improvements of the present application is that the temperature measuring element 51 is arranged to detect the temperature of the steam in the cooking steam exhaust channel P12.

[0127] Referring to Figure 6 , Figure 8 , Figure 15 and Figure 16The cover 3 further comprises a cooking steam temperature measuring device 50 for detecting the temperature of the cooking steam. The cooking steam temperature measuring device 50 comprises a temperature measuring element 51. The channel bottom shell or the channel top plate is provided with a temperature measuring hole 219, at least a portion of the temperature measuring element 51 extends into the cooking steam discharge channel P12 via the temperature measuring hole 219. The steam in the cooking cavity enters the cooking steam discharge channel P12 from the cooking steam inlet 203, and the temperature measuring element 51 detects the cooking steam in the cooking steam discharge channel P12.

[0128] In this way, the steam channel assembly 200 integrates the supplementary cooking steam supply channel P11 and the cooking steam discharge channel P12 in one assembly structure, and the temperature measuring element 51 of the cooking steam detects the temperature of the cooking steam in the cooking steam discharge channel P12. The cover structure of this design scheme ingeniously adjusts and integrates the structures related to the three technical functions of supplementary cooking steam supply, cooking steam discharge, and cooking cavity steam temperature detection, simplifies the cover and / or cover plate structure, reduces the production and assembly processes of the cover plate, and through the electric control program setting, the steam temperature in the cooking cavity can be accurately determined to be used as the control signal of the cooking process. Moreover, the temperature measuring element is arranged away from the cooking area of the cover / cover plate, leaving more cooking area and space above to layout functional devices such as the top heating device, which can improve the utilization rate of the internal space of the cover.

[0129] In addition, the temperature measuring element 51 can be away from the area where the top heating device 100 transmits heat to the cooking cavity, and the temperature measuring element 51 can be immune to the heat generated by the top heating device 100 during cooking, so that it can detect accurate steam temperature and has higher temperature measuring accuracy, so as to quickly and accurately control the temperature and adjust the heating temperature of the food, ensuring better taste of the food.

[0130] Optionally, for different food materials or the same food material but different cooking needs (e.g. hard rice, soft rice, etc.), the control device of the cooking appliance can be configured to have different temperature curves. The control device is configured to control the heating of the inner pot heating device and / or the top heating device 100 according to the detected steam temperature and the selected temperature curve.

[0131] For the example of heating food with infrared rays, infrared rays are radiated from the infrared heating device to the entire cooking cavity, and if the cooking steam temperature measuring device 50 is arranged in the radiation area, the heat radiation will affect the temperature measuring accuracy, so it is necessary to arrange the cooking steam temperature measuring device 50 away from the radiation area. In the example of generating infrared rays by the radiation plate 110, the radiation plate 110 is heated to 100-120℃ to generate far infrared rays, which can enhance the aroma of food such as rice and improve the taste of food. Therefore, in order to quickly reach this temperature, the power of the heating assembly 120 is usually set to 50-100w.

[0132] The cooking steam temperature measuring device 50 further comprises a temperature measuring sealing ring 52 and a fixing frame 53. The fixing frame 53 is fixed to the cover body 8 or the steam passage assembly 200, and the temperature measuring element 51 is connected to the fixing frame 53. Exemplarily, the middle part of the fixing frame 53 is provided with a hole, and the temperature measuring element 51 is arranged in the hole; the fixing frame 53 can be fixed to the cover body 8 or the steam passage assembly 200 by fastening bands such as screws. The temperature measuring sealing ring 52 is sleeved on the temperature measuring element 51 and abuts against the passage bottom shell 205 or the passage top plate 206 provided with the temperature measuring hole 219. By means of the temperature measuring sealing ring 52, a seal can be formed at the temperature measuring hole 219 to avoid steam flowing from between the cooking steam temperature measuring device 50 and the steam passage assembly 200 into the inside of the cover body 3, which causes a safety hazard.

[0133] Optionally, as shown in the example, the cooking steam temperature measuring device 50 is located on the upper side of the steam passage assembly 200 and is mounted to the cover body 8. Specifically, the fixing frame 53 is located on the upper side of the inner liner 9 and is fixed to the inner liner 9 by fastening members; the inner liner 9 is provided with a through hole, and a part of the temperature measuring sealing ring 52 is arranged in the through hole; and the temperature measuring element 51 passes through the temperature measuring sealing ring 52. In this way, the cooking steam temperature measuring device 50 and the steam passage assembly 200 are not fixedly connected, and the two can be separated; the position of the cooking steam temperature measuring device 50 does not hinder the assembly of the steam passage assembly 200, and the steam passage assembly 200 can be easily assembled from bottom to top to the cover body 8.

[0134] The temperature measuring hole 219 is arranged in the passage top plate 206, and the temperature measuring element 51 extends into the temperature measuring hole 219 from the upper side of the passage top plate 206. At least the passage bottom shell 205 in the steam passage assembly 200 is detached from or mounted to the cover body 3 from the lower side of the cover body 8. The position of the cooking steam temperature measuring device 50 does not affect the disassembly of at least the passage bottom shell 205. In the example in which the passage top plate 206 is connected to the passage bottom shell 205, the position of the cooking steam temperature measuring device 50 does not affect the disassembly of the entire steam passage assembly 200; in the example in which the passage top plate 206 is connected to the cover body 8, the position of the cooking steam temperature measuring device 50 does not affect the disassembly of the passage bottom shell 205. Therefore, the disassembly of at least the passage bottom shell 205 can be easily operated, and the disassembly efficiency is high, which facilitates the user to frequently clean the steam passage.

[0135] The temperature measuring hole 219 is arranged adjacent to the cooking steam inlet 203, so that the temperature measuring element 51 is located close to the cooking steam inlet 203. The steam in the cooking cavity first flows through the cooking steam inlet 203 and then flows in the cooking steam discharge passage P12, so the temperature of the steam near the cooking steam inlet 203 is basically the same as the temperature of the steam in the cooking cavity; the temperature of the steam near the cooking steam inlet 203 is detected by the temperature measuring element 51, so that the steam temperature in the cooking cavity can be truly reflected, and the steam temperature is more accurate, so as to quickly and accurately control the temperature.

[0136] Optionally, as shown in the illustrated example, the temperature measurement hole 219 is arranged on the channel top plate 206 and located at the upper side of the cooking steam inlet 203, for example, the temperature measurement hole 219 corresponds to the upper and lower positions of the cooking steam inlet 203, that is, the temperature measurement hole 219 is located approximately above the cooking steam inlet 203. The head of the temperature measurement element 51 faces the cooking steam inlet 203. Further, the projection of the temperature measurement hole 219 on the horizontal plane at least partially overlaps the projection of the cooking steam inlet 203 on the horizontal plane; the projection of the head of the temperature measurement element 51 on the horizontal plane is located within the projection of the cooking steam inlet 203 on the horizontal plane. The direction of the steam flow at the cooking steam inlet 203 is approximately parallel to the center line of the cooking steam inlet 203, the head of the temperature measurement element 51 is directed towards the cooking steam inlet 203, so that the steam flow flows towards the head, the head of the temperature measurement element 51 is the first to contact the newly flowed-in steam from the cooking steam inlet 203, further improving the accuracy of temperature measurement, and facilitating rapid and accurate temperature control.

[0137] The cooking steam inlet 203 is located at the front end 211 of the channel bottom shell 205 in the longitudinal direction, and the temperature measurement hole 219 is located at the front end 211 of the channel bottom shell 205 or the channel top plate 206 in the longitudinal direction. In design, the space of the steam channel assembly 200 in the longitudinal direction can be better utilized to arrange the steam channel with a longer extension path, so as to miniaturize the steam channel assembly 200 in the longitudinal direction. The cooking steam outlet 204 is located away from the temperature measurement hole 219 and at the rear of the channel top plate 206. After the steam flows out of the smaller cooking steam outlet 204, it enters the larger space of the exhaust steam channel, so that the steam flow at the cooking steam outlet 204 has greater air flow fluctuation. The cooking steam outlet 204 is arranged away from the temperature measurement hole 219, so that the temperature measurement of the temperature measurement element 51 is not affected by the air flow fluctuation, further improving the accuracy of temperature measurement, and facilitating rapid and accurate temperature control.

[0138] Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. Features described in one embodiment can be applied to another embodiment, unless the features are not compatible with the other embodiment or are otherwise stated.

[0139] The application has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and illustration, and the application is not limited to the above embodiments. More variations and modifications can be made according to the teachings of the application, which all fall within the scope of the application claimed.

Claims

1. A cover for a cooking appliance, the cooking appliance comprising the cover and a pot body, the cover being openably and closably disposed to the pot body to form a cooking cavity between the cover and the pot body, characterized in that, The cover body comprises: The cooking steam temperature measuring device comprises a temperature measuring element; and The steam channel assembly comprises a channel bottom shell and a channel top plate, the channel bottom shell is connected with the channel top plate and forms a cooking steam supply channel and a cooking steam exhaust channel between the channel bottom shell and the channel top plate, Wherein, the channel bottom shell or the channel top plate is provided with a temperature measuring hole, at least a part of the temperature measuring element extends into the cooking steam exhaust channel through the temperature measuring hole.

2. The cover of claim 1, wherein The channel bottom shell is provided with a cooking steam inlet of the cooking steam exhaust channel, and the temperature measuring hole is arranged adjacent to the cooking steam inlet, so that the temperature measuring element is located close to the cooking steam inlet.

3. The cover of claim 2, wherein The temperature measuring hole is arranged on the channel top plate and located on the upper side of the cooking steam inlet, and the head of the temperature measuring element is directed towards the cooking steam inlet.

4. The cover of claim 1, wherein The channel bottom shell is provided with a cooking steam inlet of the cooking steam exhaust channel, and the cooking steam inlet is located at the front end of the channel bottom shell in the longitudinal direction, and the temperature measuring hole is located at the front end of the channel bottom shell or the channel top plate in the longitudinal direction.

5. The cover of claim 1, wherein The cover body further comprises a cover main body, the steam channel assembly is located on the lower side of the cover main body, and the cooking steam temperature measuring device is located on the upper side of the steam channel assembly and is mounted to the cover main body.

6. The cover of claim 5, wherein The temperature measuring hole is arranged on the channel top plate, the temperature measuring element extends into the temperature measuring hole from the upper side of the channel top plate, and at least the channel bottom shell in the steam channel assembly is detached from or mounted to the cover body from the lower side of the cover main body.

7. The cover of claim 1, wherein The channel top plate is provided with a cooking steam outlet of the cooking steam exhaust channel, the cooking steam outlet is away from the temperature measuring hole and is arranged on the rear part of the channel top plate.

8. The cover of claim 1, wherein The cooking steam temperature measuring device further comprises a temperature measuring sealing ring, the temperature measuring sealing ring is sleeved on the temperature measuring element and abuts against the channel bottom shell or the channel top plate provided with the temperature measuring hole.

9. The cover of any one of claims 1 to 8, wherein, The cover body further comprises a top heating device, Wherein, the steam channel assembly is arranged in parallel with the top heating device in the horizontal direction, and / or The top heating device is an electric heating device, an electromagnetic heating device or an infrared heating device for radiating infrared rays to the cooking cavity.

10. The cover of any one of claims 1 to 8, wherein, The cover body further comprises a top heating device, the top heating device comprises a radiation plate and a heating assembly for heating the radiation plate, the radiation plate radiates infrared rays to the cooking cavity after being heated, and the cover body further comprises a cover plate located on the lower side of the top heating device and the steam channel assembly, Wherein, the cover plate is provided with an opening for infrared rays to pass through, the lower surface of the radiation plate exposed from the opening forms a top surface of the cooking cavity; or the cover plate is at least partially transparent to infrared rays.

11. The cover of any one of claims 1 to 8, wherein, The channel bottom shell is provided with a cooking steam inlet of the cooking steam exhaust channel, and the cooking steam inlet is located at the front end of the channel bottom shell in the longitudinal direction.

12. The cover body according to any one of claims 1 to 8, wherein The cover body comprises a steam generating device, and the channel top plate is provided with a steam connection port for communicating with the steam generating device; or The channel bottom shell is provided with a steam receiving port for communicating with the steam generating device of the pot body, and the steam receiving port is located at the lateral end of the channel bottom shell in the transverse direction.

13. The cover of any one of claims 1 to 8, wherein, The cover body further comprises a detachable cover assembly, and a top heating device, the detachable cover assembly is detachably mounted on the cover body, the top heating device and the steam channel assembly are located on the upper side of the detachable cover assembly, and at least the channel bottom shell in the steam channel assembly is mounted on the detachable cover assembly to be detached from or mounted to the cover body together with the detachable cover assembly.

14. The cover of any one of claims 1 to 8, wherein, The cover body further comprises a detachable cover assembly, and a top heating device, the detachable cover assembly is detachably mounted on the cover body, the top heating device and the steam channel assembly are located on the upper side of the detachable cover assembly, and at least the channel bottom shell in the steam channel assembly is mounted on the detachable cover assembly to be detached from or mounted to the cover body together with the detachable cover assembly.

15. A cooking appliance characterized by, The cooking utensil comprises the cover body and the pot body according to any one of claims 1 to 14, and the cover body is openably and closably arranged on the pot body to form a cooking cavity between the cover body and the pot body.

16. The cooking appliance of claim 15, wherein, The cooking utensil further comprises a steam generating device for generating cooking steam and arranged on the cover body or the pot body, so that the cooking steam is supplied into the cooking cavity through the steam channel assembly. The cover body further comprises a detachable cover assembly, and a top heating device, the detachable cover assembly is detachably mounted on the cover body, the top heating device and the steam channel assembly are located on the upper side of the detachable cover assembly, and at least the channel bottom shell in the steam channel assembly is mounted on the detachable cover assembly to be detached from or mounted to the cover body together with the detachable cover assembly.

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