Cover body for electric heating pressure cooking utensil and electric heating pressure cooking utensil

Abstract

The utility model discloses a cover body for an electric heating pressure cooking utensil and the electric heating pressure cooking utensil. The cover body comprises a cover main body, a cover plate, a pressure control device and a detachable cover assembly of a radiant panel, and the pressure control device provided with an exhaust channel is arranged on the cover plate; the radiant panel is used for radiating infrared rays to the pressure cooking cavity after being heated, the radiant panel is detachably connected to the side, facing the pressure cooking cavity, of the cover plate, and a first gap is formed between the upper surface of the radiant panel and the lower surface, facing the pressure cooking cavity, of the cover plate; therefore, steam in the pressure cooking cavity is communicated with the exhaust channel through the periphery of the radiant panel and the first gap. The technical problems that when the pressure cooking cavity exhausts air, overflowing food blocks the exhaust channel, and the pressure bearing effect of the material of the radiant panel is poor due to the fact that the peripheral side of the radiant panel is not evenly stressed in all directions are solved at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and more particularly to a lid for an electric pressure cooking appliance and an electric pressure cooking appliance. Background Art

[0002] Existing electric pressure cooking appliances such as electric pressure rice cookers usually have an exhaust valve and a detachable lid assembly on their lids. The exhaust valve has an exhaust passage inside. To prevent the exhaust passage from being blocked by ingredients such as vegetable leaves, a blocking prevention cover with through holes is usually provided on the lower side of the exhaust valve. In some cooking appliances, the exhaust valve is provided on the detachable lid assembly. The cover plate is provided with an opening, and the exhaust valve passes through the opening. The blocking prevention cover with through holes is located on the lower side of the exhaust valve and is connected to the exhaust valve. The blocking prevention cover only plays a role in preventing blockage in a small area where the exhaust valve is located, and the blocking prevention area is small. There is still a high probability that the through holes of the blocking prevention cover will be blocked by food, affecting the blocking prevention effect.

[0003] Therefore, there is a need for a lid for an electric pressure cooking appliance and an electric pressure cooking appliance to at least partially solve the above problems. Summary of the Utility Model

[0004] A series of simplified concepts are introduced in the summary part of the utility model, which will be further described in detail in the specific implementation part. The summary part of the present utility model does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0005] To at least partially solve the above problems, the present application provides a lid for an electric pressure cooking appliance. The electric pressure cooking appliance includes a cooking pot body and the lid. The lid is detachably disposed on the cooking pot body to form a pressure cooking cavity between the lid and the cooking pot body. The lid includes:

[0006] A lid main body; and

[0007] A detachable lid assembly detachably connected to the lid main body in the form of a component. The detachable lid assembly includes:

[0008] A cover plate;

[0009] A pressure control device disposed on the cover plate. The pressure control device is provided with an exhaust passage; and

[0010] A radiation plate for radiating infrared rays to the pressure cooking cavity after being heated. The radiation plate is detachably connected to the side of the cover plate facing the pressure cooking cavity. And a first gap is formed between the upper surface of the radiation plate and the lower surface of the cover plate facing the pressure cooking cavity, so that the steam in the pressure cooking cavity is communicated with the exhaust passage through the periphery of the radiation plate and the first gap.

[0011] According to this solution, a radiation plate that generates infrared rays is provided in the pressure cooking cavity. The radiation plate radiates infrared rays to the pressure cooking cavity during the cooking process, which can improve the thermal utilization efficiency, effectively heat the food, make the food evenly heated, stimulate the aroma of the food, and make the food more delicious; the radiation plate can also generate infrared rays to keep the food warm after the cooking process.

[0012] The cover plate that constitutes the pressure cooking cavity can withstand pressure, while the radiation plate in the pressure cooking cavity does not bear pressure. The material of the radiation plate can be selected mainly from the perspective of enhancing the far-infrared radiation effect without being overly affected by the material strength. The material of the radiation plate can be a material with a lower cost. At the same time, the radiation plate is below the pressure control device on the cover plate and can cover the exhaust passage of the pressure control device. The gas in the pressure cooking cavity can flow in the gap between the radiation plate and the cover plate and flow to the exhaust passage. Thus, the radiation plate has the function of an anti-blocking cover, can prevent blockage of the exhaust passage on a large area, effectively reduce the probability of the exhaust passage being blocked by foods such as rice and vegetable leaves, has a better anti-blocking effect, and higher safety.

[0013] Such a setting simultaneously solves the technical problems that food overflows and blocks the exhaust passage when the pressure cooking cavity exhausts, and the pressure-bearing effect of the material of the radiation plate itself is poor due to uneven pressure on all directions of its periphery.

[0014] Optionally, the radiation plate has a first area S1 in the extending direction of the surface of the cover plate facing the pressure cooking cavity. The radiation plate is located below the pressure control device and the first area S1 covers at least the projected area of the exhaust passage in the vertical projection direction.

[0015] According to this solution, the design of the radiation plate can be selected according to actual needs, and its setting below the pressure control device simultaneously realizes the function of radiating far-infrared rays to the food in the pressure cooking cavity to stimulate the aroma substances in the food after being heated and preventing the food from overflowing during exhaust from entering the exhaust passage and causing potential hazards of blockage and malfunction.

[0016] Optionally, the ratio between the first area S1 of the radiation plate and the second area S2 of the cover plate located in the pressure cooking cavity is 0.35 to 1.

[0017] According to this solution, the radiation plate occupies a relatively large area of the cover plate. The area for it to receive heat transfer from the cover plate and the area for radiating infrared rays to the pressure cooking cavity are both large, which can radiate more infrared rays to the food in the pressure cooking cavity and more strongly stimulate the aroma substances in the food. At the same time, it better covers the exhaust passage and realizes the function of preventing blockage of the exhaust passage on a large area.

[0018] Optionally, the cover plate is provided with a cover plate opening, and the bottom of the pressure control device passes through the cover plate opening.

[0019] According to this solution, the bottom end of the exhaust passage can extend between the cover plate and the radiation plate so as to communicate with the first gap between the cover plate and the radiation plate.

[0020] Optionally, at least one exhaust hole is provided in a portion of the radiation plate corresponding to the pressure control device, and the exhaust hole communicates the pressure cooking cavity with the exhaust passage.

[0021] According to this solution, by using the exhaust hole, the electric pressure cooking appliance can meet the normal exhaust requirement during cooking. The gas can flow from the exhaust hole of the radiation plate to the exhaust passage. The gas flow path is short, the exhaust efficiency is high, and a large amount of gas can be exhausted. The exhaust hole also has an anti-blocking function, which effectively reduces the probability of the exhaust passage being blocked by foods such as rice and vegetable leaves, and has a better anti-blocking effect and higher safety. The combination of the gap between the radiation plate and the cover plate and the exhaust hole makes the dual functions of anti-blocking and exhausting of the radiation plate more reliable.

[0022] Optionally, the aperture of the exhaust hole is smaller than the caliber of the passage opening at the bottom end of the exhaust passage.

[0023] According to this solution, the exhaust hole with a small aperture can block foods smaller than the bottom port of the exhaust passage, can achieve a better anti-blocking function, and more effectively reduce the probability of the exhaust passage being blocked by foods such as rice and vegetable leaves.

[0024] Optionally, a positioning hole is provided near the exhaust hole of the radiation plate, the cover plate is connected with a positioning member, and the lower part of the positioning member passes through the positioning hole and protrudes from the lower surface of the radiation plate.

[0025] According to this solution, the radiation plate can be positioned during assembly to prevent the radiation plate from being installed reversely or not in place, and after assembly is completed, the position of the radiation plate can be restricted to avoid the radiation plate from shaking. At the same time, the lower part of the positioning member can prevent it from being adhered to the lower surface of the radiation plate by foods such as rice and vegetable leaves and blocking the exhaust hole.

[0026] Alternatively, a convex portion is provided near the exhaust hole of the radiation plate, and the convex portion protrudes downward from the lower surface of the radiation plate.

[0027] According to this solution, the convex portion on the radiation plate can prevent it from being adhered to the lower surface of the radiation plate by foods such as rice and vegetable leaves and blocking the exhaust hole.

[0028] Optionally, at least a portion of the radiation plate corresponding to the pressure control device has a spacing from the cover plate to form at least the first gap for communicating with the pressure cooking cavity, and the first gap formed by the spacing extends toward the periphery of the cover plate closer to the pressure control device.

[0029] According to this solution, the first gap formed due to the spacing can be formed in the area near at least the pressure control device, and part of the gas can flow to the exhaust passage through the gap near the pressure control device. The gas flow path is short, and fast exhaust of the gas can be achieved while effectively preventing blockage.

[0030] Optionally, the pressure control device is arranged at the rear end of the cover plate, and there is a spacing between the rear end of the radiation plate and the rear end of the cover plate to form at least the first gap.

[0031] According to this solution, the exhaust gap is closer to the exhaust passage of the pressure control device, and the gas flow path from the exhaust gap to the exhaust passage is shortened, improving the exhaust efficiency.

[0032] Optionally, a second gap is formed between the circumferential surface of the radiation plate and the cover plate, and the second gap communicates with the first gap.

[0033] According to this solution, the gas flows to the exhaust passage through the second gap and the first gap in sequence. The range of the exhaust gap is large and not easily blocked by food, effectively preventing blockage.

[0034] Optionally, the cover plate is formed with an upwardly concave mounting portion, the top wall of the mounting portion is provided with a cover plate opening, the pressure control device is mounted on the top wall of the mounting portion through the cover plate opening, and the bottom of the pressure control device is located in the depression of the mounting portion.

[0035] According to this solution, the depression of the mounting portion can be used to accommodate part of the pressure control device, so as to firmly and reliably mount the pressure control device on the cover plate. And the depression of the mounting portion can form a gas convergence area, and the gas flowing from the exhaust hole and / or the exhaust gap can converge at the depression of the mounting portion first, and then flow to the exhaust passage.

[0036] Optionally, the pressure control device is mounted on the cover plate at the cover plate opening so as to be detached from the cover body together with the detachable cover assembly.

[0037] According to this solution, the exhaust passage of the pressure control device can be cleaned, and it is convenient for the installation and replacement of the pressure control device.

[0038] Optionally, the cover body further includes a steam channel structure for forming a steam channel. The steam channel structure includes a steam valve and a steam seal. The steam seal is arranged at the bottom of the steam valve and abuts against the upper surface of the cover plate, and the pressure control device is located in the steam channel.

[0039] According to this solution, the steam can be discharged to the external environment through the exhaust passage and the steam channel of the pressure control device; a seal is formed between the steam channel structure and the cover plate, which can prevent the steam from overflowing into the interior of the cover body.

[0040] Optionally, the radiation plate is detachably connected to the cover plate by at least one fastening component.

[0041] According to this solution, the radiation plate can be detached from the detachable cover assembly. After the radiation plate is separated, it can be cleaned separately. At the same time, the lower surface of the cover plate is not blocked by the radiation plate and can also be cleaned, which greatly facilitates the cleaning operation after the user uses the appliance. The connection structure of the fastening component can provide strong support force for the radiation plate, which is beneficial to the radiation plate to be more stably held on the cover plate.

[0042] The pressure control device includes a pressure valve.

[0043] According to this solution, a certain gas pressure can be present in the pressure cooking cavity, so as to form a pressure cooking appliance.

[0044] Optionally, the cover body further includes a heating component for heating the radiation plate, and the heating component is located on the upper side of the detachable cover assembly and abuts against the cover plate.

[0045] According to this solution, the heating component is in contact with the cover plate, so that heat is transferred from the heating component to the cover plate through heat conduction, and then transferred to the radiation plate through the heated cover plate. The heat transfer efficiency is high, enabling the radiation plate to quickly heat up.

[0046] Optionally, the heating component is floating relative to the detachable cover assembly in a direction close to and away from the detachable cover assembly.

[0047] According to this solution, the floating heating component can avoid the existence of installation gaps, enabling the heating component to abut against the cover plate.

[0048] According to another aspect of the present application, there is provided an electrothermal pressure cooking appliance, which includes a cooking pot body and a cover body according to any one of the above aspects. The cover body is openably and closably arranged on the cooking pot body to form a pressure cooking cavity between the cover body and the cooking pot body.

[0049] According to this solution, a radiation plate that generates infrared rays is provided in the pressure cooking cavity. The radiation plate radiates infrared rays into the pressure cooking cavity during the cooking process, which can improve the thermal utilization efficiency, effectively heat the food, make the food heated evenly, stimulate the aroma of the food, and make the food more delicious; the radiation plate can also generate infrared rays to keep the food warm after the cooking process.

[0050] Meanwhile, the radiation plate is located below the pressure control device on the cover plate and can cover the exhaust passage of the pressure control device. The gas in the pressure cooking cavity can flow through the gap between the radiation plate and the cover plate and then reach the exhaust passage. Thus, the radiation plate has the function of an anti-blocking cover, which can prevent blockage of the exhaust passage over a large area, effectively reduce the probability of blockage by foods such as rice and vegetable leaves, and has a better anti-blocking effect and higher safety.

[0051] This setting solves the technical problems that food overflows and blocks the exhaust passage during the exhaust of the pressure cooking cavity and the pressure-bearing effect of the material of the radiation plate itself is poor due to uneven pressure on all sides of its circumference.

[0052] Optionally, the cooking pot body includes an inner pot. The mouth of the inner pot has a third area S3 on a horizontal plane, and the ratio of the first area S1 of the radiation plate to the third area S3 of the mouth of the pot is 0.35 - 1.

[0053] According to this solution, when the ratio of the area of the radiation plate to the area of the pot mouth is above 0.35, the infrared region radiated by the radiation plate is larger, which can meet the heating requirements of food and better cover the exhaust passage at the same time, realizing the function of preventing blockage of the exhaust passage over a large area. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The following drawings of the present application are part of the present application for understanding the present application. The embodiments and descriptions thereof shown in the drawings are used to explain the principles of the present application.

[0055] In the drawings:

[0056] Figure 1 is a cross-sectional view of a cooking appliance according to the present application;

[0057] Figure 2 is Figure 1 a perspective view of the cooking appliance shown in, where the cover body is shown in a disassembled state;

[0058] Figure 3 is Figure 1 a cross-sectional perspective exploded view of the cover body shown in;

[0059] Figure 4 is Figure 1 a cross-sectional perspective exploded view of the detachable cover assembly shown in;

[0060] Figure 5 is Figure 1 a cross-sectional perspective exploded view of the heating assembly and the heat insulation member shown in;

[0061] Figure 6 is Figure 4 a cross-sectional perspective view of the screw member shown in;

[0062] Figure 7is Figure 4 A sectional perspective view of the nut member shown in

[0063] Figure 8 is Figure 1 A partial view of a part of the cover body at the screw member shown in

[0064] Figure 9 is Figure 1 A partial view of a part of the cover body at the pressure control device shown in

[0065] Explanation of reference numerals:

[0066] 1 Cooking appliance 2 Pot body

[0067] 3 Cover body 4 Inner pot

[0068] 5 Heating device 5a Bottom heating device

[0069] 5b Side heating device 6 Inner lining

[0070] 7 Face cover assembly 8 Through hole

[0071] 9 Cover main body 10 Removable cover assembly

[0072] 11 Cover plate 12 Removable cover base

[0073] 13 Pot mouth sealing ring 14 Radiation plate

[0074] 15 Mounting hole 16 Positioning member

[0075] 17 Positioning hole 18 First avoidance portion

[0076] 20 Heating assembly 21 Heating plate

[0077] 22 Heating element 23 Card foot

[0078] 24 Second avoidance portion 25 First mounting opening

[0079] 26 Second mounting opening 30 Heat insulation member

[0080] 31 Fixed post 32 Card hole

[0081] 40 Pressure control device 41 Pressure valve

[0082] 42 Safety valve 43 Screw

[0083] 44 Elastic element 45 Connecting member

[0084] 46 Connecting portion 47 First through hole

[0085] 48 Second through hole 49 Temperature measuring hole

[0086] 50 Fastening assembly 51 Screw member

[0087] 52 Nut component 53 Mounting seat

[0088] 54 Positioning part 55 External thread

[0089] 56 Guide part 57 Guide surface

[0090] 60 Steam channel structure 61 Cover plate opening

[0091] 62 Steam valve 63 Steam seal

[0092] 64 Exhaust hole 65 Mounting part

[0093] 71 User interaction area 72 Power cord

[0094] 73 Pivot shaft 74 Torsion spring

[0095] P1 Exhaust channel P2 Steam channel

[0096] G Exhaust gap G1 First gap

[0097] G2 Second gap Detailed implementation mode

[0098] In the following description, a large number of specific details are given to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features known to the public are not described.

[0099] For a thorough understanding of the present application, detailed descriptions will be presented in the following. Obviously, the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail as follows. However, in addition to these detailed descriptions, the present application can also have other embodiments.

[0100] It should be noted that the terms used here are only for describing specific implementation modes and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations.

[0101] Ordinal numbers such as "first" and "second" cited in this application are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" does not imply the existence of a "second component" by itself, and the term "second component" does not imply the existence of a "first component" by itself.

[0102] 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 not restrictive.

[0103] 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 many different forms and should not be construed as being limited only to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present application is thorough and complete, and the concept of these exemplary embodiments is fully conveyed to those of ordinary skill in the art.

[0104] As Figure 1 and Figure 2 As shown, the present application provides an electrothermal pressure cooking appliance 1, which includes a cooking pot body 2 and a lid body 3. The cooking pot body 2 has an inner pot receiving portion in a cylindrical shape. The inner pot 4 can be fixedly arranged at the inner pot receiving portion, or can be freely placed into or taken out from the inner pot receiving portion to facilitate the cleaning of the inner pot 4. The inner pot 4 is usually made of a metal material and has a circular opening on the upper surface for containing materials to be heated, such as rice, soup, etc. The cooking pot body 2 includes a heating device 5 for heating the inner pot 4, such as a heating plate, to heat the inner pot 4.

[0105] It can be understood that the electrothermal pressure cooking appliance 1 according to the present application can be an electrothermal pressure rice cooker, an electric pressure cooker or other electrothermal pressure cooking appliances, and the electrothermal pressure cooking appliance 1 can have various functions such as porridge cooking in addition to the function of cooking rice.

[0106] The lid body 3 has a shape substantially corresponding to that of the cooking pot body 2. The lid body 3 is pivotally provided on the cooking pot body 2. Specifically, it is pivotally connected to the cooking pot body 2 through a pivot shaft 73 and can freely pivot between a closed position and an open position relative to the cooking pot body 2 about the pivot axis where the pivot shaft 73 is located to facilitate the closing and opening of the cooking pot body 2. When the lid body 3 is closed on the cooking pot body 2, it covers the inner pot 4, and a pressure cooking cavity is formed between the lid body 3 and the inner pot 4. The lid body 3 usually also has a pot mouth sealing ring 13, and the pot mouth sealing ring 13 can be made of, for example, a rubber material. It is arranged between the lid body 3 and the inner pot 4 and is used to seal the pressure cooking cavity when the lid body 3 is in the closed state.

[0107] It should be noted that the directional terms used in this article to describe the various components, parts, etc. of the electrothermal pressure cooking appliance 1, such as "upper", "lower", "above", "below", "upward", "downward", "upward-facing", "downward-facing", etc., are relative to the electrothermal pressure cooking appliance 1 in a horizontally placed and upright state.

[0108] As Figure 1 and Figure 2 shown, the heating device 5 in the pot body includes a bottom heating device 5a and a side heating device 5b. The bottom heating device 5a is located on the lower side of the inner pot 4 and can be an electric heating device, an electromagnetic heating device, etc. The side heating device 5b corresponds to the side of the inner pot 4 and can be an electric heating device, an electromagnetic heating device, etc. A power cord 72 with a plug is also provided at the rear end of the pot body 2, and is connected to an external power supply through the plug on the power cord 72. A torsion spring 74 can be sleeved on the pivot shaft 73 for automatic lid opening.

[0109] As Figure 2 and Figure 3 shown, the lid 3 mainly includes a lining 6, a face cover assembly 7, and a detachable lid assembly 10. The lining 6 and the face cover assembly 7 form the lid main body 9. The detachable lid assembly 10 is located on the lower side of the lid main body 9 and is detachably connected to the lid main body 9 in the form of a component. Specifically, the face cover assembly 7 is provided on the upper side or the outside of the lining 6 and can cover the lining 6. A user interaction area 71 is provided on the upper surface of the face cover assembly 7 for user operation. The lining 6 can be connected to the face cover assembly 7 by suitable means such as snap connection, connection by fasteners such as screws 43, bonding, etc. The detachable lid assembly 10 is provided on the lower side or the inside of the lining 6 and is detachably connected to the lining 6. The detachable lid assembly 10 is movably connected to the lining 6 through a plug-in and / or snap connection structure. When it is necessary to clean the detachable lid assembly 10, the detachable lid assembly 10 can be detached from the lid 3.

[0110] The detachable lid assembly 10 mainly includes a cover plate 11, an annular detachable lid base 12, and the above-mentioned pot mouth sealing ring 13. The cover plate 11 can be selected as a metal plate and can withstand a certain gas pressure. Most of the lower surface of the cover plate 11 constitutes the upper top surface of the pressure cooking cavity. The detachable lid base 12 can detachably connect the cover plate 11 to the lining 6. The cover plate 11 can be connected to the detachable lid base 12 by other suitable means such as snap fasteners or fastening by fasteners. A part of the pot mouth sealing ring 13 is pressed between the cover plate 11 and the detachable lid base 12.

[0111] To improve the cooking effect of food, the detachable cover assembly 10 further includes a radiation plate 14, which is used to radiate infrared rays, such as far-infrared rays, into the pressure cooking cavity after being heated. The radiation plate 14 radiates infrared rays into the pressure cooking cavity during the cooking process, which can improve the thermal utilization efficiency, effectively heat the food, make the food heated evenly, stimulate the aroma of the food, and make the food more delicious; the radiation plate 14 can also generate infrared rays to keep the food warm after the cooking process. The radiation plate 14 can be a ceramic plate, a carbon plate made of carbon materials, etc.

[0112] To heat the radiation plate 14, the cover body 3 further includes a heating assembly 20 for heating the radiation plate 14. The heating assembly 20 is located on the lower side of the inner liner 6 and can be connected to the inner liner 6. The heating assembly 20 includes a heating plate 21 and a heating element 22 provided on the upper surface of the heating plate 21. The heat generated by the heating element 22 can be transferred downward through the heating plate 21 and then transferred to the radiation plate 14 to raise the temperature of the radiation plate 14.

[0113] The radiation plate 14 of this embodiment can be connected to the side of the cover plate 11 facing the pressure cooking cavity, specifically the lower side. The radiation plate 14 can be detached from the cover body 3 together with the detachable cover assembly 10, which facilitates the cleaning operation after the user uses the appliance. This design also makes it possible for the radiation plate 14 to be closer to the food in the pressure cooking cavity. Designers can test, think, and select the best distance by shortening the radiation distance of the infrared rays to the food. Generally, by shortening the radiation distance, the thermal radiation intensity and efficiency can be improved to a certain extent, energy loss can be avoided, the radiation effect on the food is stronger, and the effect of stimulating the aroma substances in the food is also better. Therefore, the market competitiveness of the product can be enhanced.

[0114] The radiation plate 14 is disposed in the pressure cooking cavity. Specifically, the radiation plate 14 is suspended at the top of the pressure cooking cavity. A gap through which gas can pass is formed between the upper surface of the radiation plate 14 and the lower surface of the cover plate 11 that constitutes the upper top surface of the pressure cooking cavity. Optionally, in the assembled state, there is a spacing between the upper surface of the radiation plate 14 and the above-mentioned lower surface of the cover plate 11 to form a gap. In this solution, the heat of the heated cover plate 11 is transferred to the radiation plate 14 in the form of radiative heat conduction. Alternatively, the upper surface of the radiation plate 14 is provided with a gas guiding structure such as a gas guiding groove, and a gap is formed between the gas guiding structure and the above-mentioned lower surface of the cover plate 11. In this solution, the upper surface of the radiation plate 14 and the above-mentioned lower surface of the cover plate 11 can be in contact or in touch, and the heat of the heated cover plate 11 is transferred to the radiation plate 14 in a mixed way of radiative heat conduction and contact heat conduction. Alternatively, the upper surface of the radiation plate 14 has a preset surface roughness. Due to the small spacing and minute peaks and valleys on the upper surface of the radiation plate 14, a gap is formed even when the upper surface of the radiation plate 14 and the above-mentioned lower surface of the cover plate 11 are in contact. In this solution, the upper surface of the radiation plate 14 and the above-mentioned lower surface of the cover plate 11 can be in contact or in touch, and the heat of the heated cover plate 11 is transferred to the radiation plate 14 in a mixed way of radiative heat conduction and contact heat conduction.

[0115] In the design of this application, there is a fine gap between the cover plate 11 and the radiation plate 14. In order to achieve better heat transfer and gas flow functions, the designer can specifically design this fine gap, such as a gas guiding groove. Alternatively, in the case of manufacturing according to general manufacturing processes, a fine gap through which gas can flow can be formed between the two surfaces in the assembled state, that is, the gap between the two is accessible to gas. The radiation plate 14 can be designed to be partially in contact with the cover plate 11, and due to the existence of the gap, the heat of the heated cover plate 11 is transferred to the radiation plate 14 in a mixed way of radiative heat conduction and contact heat conduction.

[0116] The detachable cover assembly 10 is sealed with the inner pot 4 through the pot mouth sealing ring 13 to form a sealed pressure cooking cavity. There is no seal between the radiation plate 14 and the cover plate 11, and the gas in the pressure cooking cavity can flow in the gap between the radiation plate 14 and the cover plate 11. When there is gas pressure in the pressure cooking cavity, the cover plate 11 that constitutes the top wall of the pressure cooking cavity can withstand the pressure, while the radiation plate 14 in the pressure cooking cavity does not bear the pressure. The material of the radiation plate 14 can be selected mainly from the perspective of enhancing the far-infrared radiation effect without being overly affected by the material strength. The material of the radiation plate 14 can be a material with a lower cost. For example, inexpensive domestic ceramics can be used.

[0117] Thus, through the gap between the radiation plate 14 and the cover plate 11, the radiation plate 14 itself can avoid bearing pressure, and the technical problem that the bearing effect of the material of the radiation plate 14 is poor due to uneven pressure on all directions of the circumferential side of the radiation plate 14 itself can be solved. Since the cover plate bears the pressure in the pressure cooking cavity and the pressure in the pressure cooking cavity is adjustable, for example, adjustable between 10Kpa and 110Kpa, the radiation plate 14 will not break even in a high-pressure cooking environment because it does not bear pressure. Even if the radiation plate 14 accidentally collides and breaks during use, since the cover plate bears the pressure, it will not cause safety problems such as explosion of the electric pressure cooking appliance and hurt consumers, and the product use safety is higher.

[0118] To effectively transfer heat to the radiation plate 14, the heating assembly 20 abuts against the cover plate 11. Specifically, the heating plate 21 abuts against the cover plate 11, so that heat is transferred from the heating assembly 20 to the cover plate 11 through heat conduction. It should be explained that Figure 1 This is only a schematic diagram. When the detachable cover assembly 10 is assembled to the cover body 3, the heating plate 21 can abut against the cover plate 11 and there is no gap between them. The heating assembly 20 contacts the cover plate 11, so that heat is transferred from the heating assembly to the cover plate 11 through heat conduction, and then transferred to the radiation plate 14 via the heated cover plate 11. The heat transfer efficiency is high, enabling the radiation plate 14 to quickly heat up.

[0119] The main body of the radiation plate 14 is substantially parallel to the cover plate 11, and the distance between the radiation plate 14 and the food in the pressure cooking cavity is small, further shortening the radiation distance of infrared rays to the food; and it is convenient to form a large-area surface contact, which is beneficial to heat conduction. Alternatively, the cover plate 11 is provided with an upwardly concave accommodating portion, and the radiation plate 14 is located in the accommodating portion. This solution can limit the movement of the radiation plate 14 in the horizontal direction through the accommodating portion to prevent shaking; and the shapes of the accommodating portion and the radiation plate 14 can be set to be adapted to each other. For a non-circular radiation plate 14, it is beneficial to position the radiation plate 14 during assembly to prevent misassembly.

[0120] The cover body 3 includes a pressure control device 40, and the pressure control device 40 is provided with an exhaust passage P1. The pressure control device 40 is installed on the cover plate 11 and can be disassembled from the cover body together with the detachable cover assembly 10. As Figure 3 shown, the cover body 3 is provided with a steam passage structure 60 for forming a steam passage P2. The steam passage structure 60 includes a steam valve 62 and a steam seal 63. The steam seal 63 is provided at the bottom of the steam valve 62 and abuts against the upper surface of the cover plate 11, and the pressure control device 40 is located in the steam passage P2.

[0121] The pressure control device 40 includes a pressure valve 41 and a safety valve 42. The pressure valve 41 has an exhaust passage P1 for communicating with the pressure cooking cavity. The safety valve 42 also has an exhaust passage P1 for communicating with the pressure cooking cavity, which can also be called a pressure relief passage. Optionally, asFigure 2 As shown, the pressure valve 41 is fixed to the cover plate 11 so as to be detached from the cover body 3 together with the detachable cover assembly 10; the safety valve 42 is also fixed to the cover plate 11 and can be detached from the cover body 3 together with the detachable cover assembly 10. In this way, the exhaust passage P1 of the pressure valve 41 can be cleaned, the air release passage of the safety valve 42 can be cleaned, and it is convenient for the installation and replacement of the pressure valve 41 and the safety valve 42. The pressure valve 41 and the safety valve 42 are located in the steam passage P2. The heating plate 21 has a notch for avoiding the steam passage structure 60 in the cover body 3.

[0122] In order to prevent the heat of the heating assembly 20 from being directed towards the inner liner 6, the cover body 3 further includes a heat insulation member 30. The heat insulation member 30 is disposed between the heating assembly 20 and the inner liner 6, and the heating assembly 20 can be connected to the inner liner 6 through the heat insulation member 30. Thereby, heat radiation to heat-sensitive components in the cover body 3, such as the lamp board, etc., can be avoided, which may affect the functions of these components.

[0123] As Figure 4 shown, the radiation plate 14 is detachably connected to the cover plate 11. The radiation plate 14 can be detached from the detachable cover assembly 10. After the radiation plate 14 is separated, it can be cleaned separately. At the same time, the lower surface of the cover plate 11 is not blocked by the radiation plate 14 and can also be cleaned. This design greatly facilitates the cleaning operation after the user uses the appliance. In the connected state, the upper surface of the radiation plate 14 is partially in contact with the lower surface of the cover plate 11 that constitutes the upper top surface of the pressure cooking cavity. With such an arrangement, when the cover plate 11 is heated, the heat of the heated cover plate 11 is transferred to the radiation plate through the contact part by contact heat conduction. The connection method of the radiation plate 14 can be set as required. Refer to Figure 1 , a connecting member 45 is fixedly provided on the cover plate 11, and a connecting portion 46 is provided on the radiation plate 14. The radiation plate 14 is detachably connected to the cover plate 11 through the connecting member 45 and the connecting portion 46. Exemplarily, the radiation plate 14 can be connected to the cover plate 11 through at least one fastening assembly 50, and the fastening assembly 50 is located in the middle of the radiation plate 14. The illustrated embodiment schematically shows one fastening assembly 50, and this one fastening assembly 50 can be located at the center position of the radiation plate 14. The radiation plate 14 is separated from the cover plate 11 by disassembling the fastening assembly 50, and the radiation plate 14 is connected to the cover plate 11 by assembling the fastening assembly 50. Since the weight of the radiation plate 14 is usually large, the connection structure of the fastening assembly 50 can provide strong support for the radiation plate 14, which is beneficial to the radiation plate 14 being held more stably on the cover plate 11.

[0124] The fastening assembly 50 includes a screw member 51 for the connecting member 45 and a nut member 52 for the connecting portion 46. The screw member 51 is not a conventional screw 43, and the nut member 52 is not a conventional nut. Both are designed according to the assembly requirements, and their specific structures will be described below. The screw member 51 is fixed to the cover plate 11. For example, the screw member 51 can be fixed to the cover plate 11 by means such as welding or riveting. The nut member 52 is located on the lower side of the radiation plate 14. The radiation plate 14 is provided with a mounting hole 15. As Figure 8 shown, the screw member 51 passes through the mounting hole 15 and its lower part passes out of the mounting hole 15, and the nut member 52 is screwed onto the lower part of the screw member 51 from the lower side of the radiation plate 14. The radiation plate 14 is clamped between the cover plate 11 and the nut member 52. The nut member 52 supports the radiation plate 14 upward and can provide a strong supporting force to the radiation plate 14. When it is necessary to disassemble the radiation plate 14 from the detachable cover assembly 10, rotate the nut member 52 to disengage it from the screw member 51; when installing the radiation plate 14 onto the detachable cover assembly 10, rotate the nut member 52 to screw it onto the screw member 51. The disassembly and installation process of the radiation plate 14 is simple and easy to operate.

[0125] As Figure 4 shown, the detachable cover assembly 10 further includes a positioning member 16. The positioning member 16 is connected to the cover plate 11. The positioning member 16 can protrude from the lower surface of the cover plate 11. The radiation plate 14 is provided with a positioning hole 17, and the lower part of the positioning member 16 passes through the positioning hole 17. Through the positioning member 16, the radiation plate 14 can be positioned during assembly to prevent the radiation plate 14 from being installed in the wrong direction or not in place, and after assembly is completed, the position of the radiation plate 14 can be restricted to avoid the radiation plate 14 from shaking. Optionally, the positioning member 16 is a separate component, and it can be connected to the cover plate 11 by a suitable method such as snap connection or connection by a fastener such as a screw 43. Alternatively, the positioning member 16 can be integrally formed with the cover plate 11.

[0126] The heating assembly 20 is vertically movably connected to the inner liner 6, and the position of the heating assembly 20 relative to the inner liner 6 is variable. Thus, the heating assembly 20 can float relative to the detachable cover assembly 10 in the direction of approaching and departing from the detachable cover assembly 10. The floating heating assembly 20 can avoid the existence of an installation gap, so that the heating assembly 20 can abut against or closely adhere to the cover plate 11 from the side of the cover plate 11 facing away from the cooking cavity, specifically ensuring that the heating plate 21 can be in surface contact with the cover plate 11.

[0127] As Figure 5 shown, the heat insulation member 30 is provided with a plurality of fixing columns 31 at intervals, and the inner liner 6 is provided with a plurality of through holes 8 (refer to Figure 3), the through hole 8 corresponds to the position of the fixing post 31. The screw 43 is inserted through the through hole 8 from the upper side of the inner liner 6 and fastened to the fixing post 31. Thus, the heat insulation member 30 can be movably connected to the inner liner 6. A plurality of clamping feet 23 are provided at intervals on the outer periphery of the heating plate 21, and a plurality of clamping holes 32 are provided at intervals on the heat insulation member 30. The clamping feet 23 are inserted through the opening and bent to fix the heating plate 21 to the heat insulation member 30. With such an arrangement, the heat insulation member 30 and the heating assembly 20 float up and down together. When floating, the screw 43 connected to the heat insulation member 30 also moves up and down relative to the inner liner 6.

[0128] The cover body 3 further includes an elastic element 44. The elastic element 44 applies a biasing force to the heating assembly 20 to keep the heating assembly 20 in abutment with the cover plate 11. Thus, the heating assembly 20 remains in contact with the cover plate 11, enabling heat to be transferred from the cover plate 11 to the radiation plate 14 through heat conduction. Exemplarily, the elastic element 44 is sleeved on the fixing post 31 and abuts against the lower surface of the inner liner 6. The elastic element 44 can be a helical spring.

[0129] Optionally, the shape of the heat insulation member 30 can be annular. Alternatively, the shape of the heat insulation member 30 can be plate-shaped to form a heat insulation cover / casing.

[0130] As Figure 4 and Figure 8 shown, the cover plate 11 is provided with a first avoidance portion 18 that is recessed upward, and the first avoidance portion 18 corresponds to the position of the fastening assembly 50. The top of the fastening assembly 50 is located within the recess of the avoidance portion and is fixedly connected to the avoidance portion. With such an arrangement, the connection between the fastening assembly 50 and the cover plate 11 is more stable, while avoiding a large gap between the radiation plate 14 and the cover plate 11 at the fastening assembly 50, enabling heat conduction between the radiation plate 14 and the cover plate 11 at the fastening assembly 50.

[0131] As Figure 5 shown, the heating plate 21 is provided with a second avoidance portion 24 that is recessed upward, and the second avoidance portion 24 corresponds to the position of the first avoidance portion 18. The first avoidance portion 18 of the cover plate 11 protrudes from the upper surface of the cover plate 11 and is located within the recess of the second avoidance portion 24. With such an arrangement, a positioning structure is formed between the first avoidance portion 18 and the second avoidance portion 24, which can position the detachable cover assembly 10 during assembly, prevent the detachable cover assembly 10 from being installed in the wrong direction or not being assembled in place, and limit the position of the detachable cover assembly 10 after assembly to avoid the detachable cover assembly 10 from shaking. In addition, it prevents movement interference during the up and down floating of the heating assembly 20.

[0132] Optionally, the shapes of the first avoidance portion 18 and the second avoidance portion 24 can be the same, for example, they can be circular, polygonal or other suitable shapes; the numbers of the first avoidance portion 18 and the second avoidance portion 24 are the same as the number of the screw members 51, for example, one or more.

[0133] As Figure 6 shown, the screw member 51 includes a mounting base 53, a positioning portion 54, an external thread 55, and a guiding portion 56. The positioning portion 54 is located below the mounting base 53 and above the external thread 55. As Figure 8 shown, the mounting base 53 can be located within the recess of the first avoidance portion 18 and connected to the cover plate 11. The positioning portion 54 is located within the mounting hole 15, and the positioning portion 54 is adapted to the mounting hole 15. Optionally, there is a gap of, for example, 0.1 - 1 mm between the two. The external thread 55 can cooperate with the internal thread of the nut member 52. The guiding portion 56 is provided below the external thread 55 and is formed, for example, via an R corner or a C corner. During assembly, the screw member 51 can easily penetrate into the mounting hole 15 by means of the guiding portion 56.

[0134] As Figure 7 shown, the nut member 52 is provided with a guiding surface 57 at the threaded opening, which is formed, for example, via an R corner or a C corner. During assembly, the screw member 51 can easily penetrate into the nut member 52 by means of the guiding surface 57. The nut member 52 has a bottom to prevent steam, etc. from entering the nut member 52 and affecting the fastening effect. The outer contour shape of the nut member 52 can be circular or polygonal. The material of the nut member 52 can be metal, such as stainless steel, aluminum, titanium, etc.; it can also be silicone rubber, etc.;

[0135] As Figure 3 、 Figure 4 and Figure 9 shown, the cover plate 11 is provided with a cover plate opening 61, and the bottom of the pressure control device 40 penetrates through the cover plate opening 61. The radiation plate 14 extends to below the pressure control device 40 and at least covers the exhaust passage P1 to prevent blockage of the exhaust passage P1. The radiation plate 14 covers the entire pressure control device 40 from the lower side, specifically, the radiation plate 14 covers both the pressure valve 41 and the safety valve 42 from the lower side.

[0136] As described above, a gap, i.e., the first gap G1, is formed between the upper surface of the radiation plate 14 and the lower surface of the cover plate 11 that constitutes the upper top surface of the pressure cooking cavity. The steam in the pressure cooking cavity is communicated with the exhaust passage P1 via the periphery of the radiation plate 14 and the first gap G1 for exhausting. The first gap G1 constitutes the exhaust gap. With such an arrangement, the radiation plate 14 is located below the pressure control device 40 on the cover plate 11 and can cover the exhaust passage P1 of the pressure control device 40. The gas in the pressure cooking cavity can flow through the gap between the radiation plate 14 and the cover plate 11 and flow to the exhaust passage P1. Thus, the radiation plate 14 has the function of an anti-blocking cover, can prevent blockage of the exhaust passage P1 on a large area, effectively reduce the probability of being blocked by foods such as rice and vegetable leaves, has a better anti-blocking effect and higher safety. Such an arrangement solves the technical problems of food overflowing and blocking the exhaust passage P1 during the exhaust of the pressure cooking cavity and the poor pressure-bearing effect of the material of the radiation plate 14 itself due to uneven pressure on all directions of its periphery.

[0137] The radiation plate 14 has a first area S1 in the extending direction of the surface of the cover plate 11 facing the pressure cooking cavity. The radiation plate 14 is located below the pressure control device 40 and the first area S1 covers at least the projected area of the exhaust passage P2 in the vertical projection direction. The design of the radiation plate 14 can be selected according to actual needs, and its arrangement below the pressure control device 40 can simultaneously realize the function of radiating far-infrared rays to the food in the pressure cooking cavity to stimulate the aroma substances of the food after being heated and prevent the hidden danger of food overflowing and entering the exhaust passage P1 during exhaust, which may cause blockage and malfunction.

[0138] At least one exhaust hole 64 is formed in the part of the radiation plate 14 corresponding to the position of the pressure control device 40. The illustrated embodiment schematically shows a plurality of exhaust holes 64 arranged at intervals for exhausting a large amount of gas simultaneously. The exhaust holes 64 can communicate the pressure cooking cavity with the exhaust passage P1. By using the exhaust holes 64, the electrothermal pressure cooking appliance can meet the normal exhaust requirement during cooking. The gas can flow from the exhaust holes 64 of the radiation plate 14 to the exhaust passage. The gas flow path is short, the exhaust efficiency is high, and a large amount of gas can be exhausted. The exhaust holes 64 also have an anti-blocking function, can effectively reduce the probability of the exhaust passage P1 being blocked by foods such as rice and vegetable leaves, have a better anti-blocking effect and higher safety. The combination of the gap between the radiation plate 14 and the cover plate 11 and the exhaust holes 64 makes the dual functions of anti-blocking and exhausting of the radiation plate 14 more reliable.

[0139] The diameter of vent hole 64 is smaller than the bottom opening of exhaust channel P1. Optionally, the diameter of vent hole 64 ranges from 0.5 mm to 15 mm, for example, 0.5 mm, 2 mm, 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 15 mm, or other suitable values. Small-diameter vent holes 64 can block food smaller than the bottom end of exhaust channel P1, providing better anti-clogging capabilities and reducing the likelihood of exhaust channel P1 being clogged by food such as rice and vegetable leaves.

[0140] A second gap G2 is formed between the circumferential surface of the radiation plate 14 and the cover plate 11. This second gap G2 constitutes the exhaust gap G. In other words, the exhaust gap G comprises the first gap G1 and the second gap G2. The second gap G2 communicates with the first gap G1. Gas flows sequentially through the second gap G2 and the first gap G1 to the exhaust passage P1. The large exhaust gap G is less susceptible to food clogging, effectively preventing blockage.

[0141] A gap exists between the radiant plate 14 and the cover plate 11, at least in the portion corresponding to the pressure control device 40, to form at least a first gap G1 for communication with the pressure cooking chamber. This gap G1 extends toward the periphery of the cover plate 11 closer to the pressure control device 40. This arrangement allows the first gap G1 to be formed at least near the pressure control device 40, allowing some gas to flow through the gap near the pressure control device 40 to the exhaust passage P1. This shortens the gas flow path, enables faster exhaust, and effectively prevents clogging.

[0142] The pressure control device 40 is located at the rear end of the cover plate 11. A gap G1 is defined between the rear end of the radiation panel 14 and the rear end of the cover plate 11. The exhaust gap G is closer to the exhaust passage P1 of the pressure control device 40, shortening the gas flow path from the exhaust gap G to the exhaust passage P1 and improving exhaust efficiency.

[0143] In the illustrated embodiment, the lower portion of the positioning member 16 is inserted into the positioning hole 17 and protrudes from the lower surface of the radiation plate 14. The positioning hole 17 can be located near the exhaust hole 64. Specifically, the positioning member 16 is located in the area where the pressure control device 40 is located, and its position is offset from the opening of the exhaust passage P1. The protrusion of the positioning member 16 from the lower surface of the radiation plate 14 can range from 1 mm to 30 mm, for example, 1 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, or other suitable values. The lower portion of the positioning member 16 prevents food such as rice and vegetable leaves from sticking to the lower surface of the radiation plate 14 and blocking the exhaust hole 64. There can be one or more positioning members 16, with each positioning hole 17 corresponding to each positioning member 16.

[0144] Alternatively, in an embodiment not shown, the radiation plate 14 is provided with a convex portion near the exhaust hole 64, and the convex portion protrudes downward from the lower surface of the radiation plate 14. Optionally, the convex portion is integrally formed on the radiation plate 14. The convex portion on the radiation plate 14 can prevent food such as rice and vegetable leaves from sticking to the lower surface of the radiation plate 14 and blocking the exhaust hole 64.

[0145] Optionally, the cover plate 11 is formed with a mounting portion 65 that is recessed upward. The top wall of the mounting portion 65 is provided with the cover plate opening 61. The mounting portion 65 is recessed upward from the lower surface of the cover plate 11 and protrudes from the upper surface of the cover plate 11. The pressure control device 40 is installed on the top wall of the mounting portion 65 via the cover plate opening 61, and the bottom of the pressure control device 40 is located in the recess of the mounting portion 65. With such a setting, the recess of the mounting portion 65 can be used to accommodate part of the pressure control device 40, so as to firmly and reliably install the pressure control device 40 on the cover plate 11. And the recess of the mounting portion 65 can form a gas converging area, and the gas flowing from the exhaust hole 64 and / or the exhaust gap G can first converge at the recess of the mounting portion 65 and then flow to the exhaust passage P1. This is beneficial to improving the exhaust efficiency of the gas at the passage opening of the exhaust passage P1.

[0146] Optionally, the shape of the radiation plate 14 can be circular, polygonal, elliptical or a special shape matching the shape of the heating plate 21. The lower surface of the radiation plate 14 is provided with concave-convex textures, and the concave-convex textures can form a preset pattern. By setting the concave-convex textures, the surface area of the radiation plate 14 can be increased to better emit infrared rays, and the radiation plate 14 can have a certain non-stick property. A preset pattern is printed on the lower surface of the radiation plate 14. When the cover 3 is opened, consumers can observe the preset pattern from the radiation plate 14, so as to improve the visual appearance of the product.

[0147] Optionally, the ratio between the first area S1 of the radiation plate 14 and the second area S2 of the cover plate 11 located in the pressure cooking cavity is 0.35 to 1, such as suitable values like 0.35, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, etc. The radiation plate 14 occupies a relatively large area of the cover plate 11. Both the area for receiving heat transfer from the cover plate 11 and the area for radiating infrared rays into the pressure cooking cavity are relatively large, enabling more infrared rays to be radiated to the food in the pressure cooking cavity, and more effectively stimulating the aroma substances in the food. The mouth of the inner pot 4 has a third area S3 on the horizontal plane. The ratio between the first area S1 of the radiation plate 14 and the third area S3 of the mouth of the pot is 0.35 to 1, such as suitable values like 0.35, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, etc. If the area of the radiation plate 14 is too small, the infrared radiation area is small, and the food heating effect is not good. When the ratio of the area of the radiation plate 14 to the area of the mouth of the pot is above 0.35, the infrared radiation area of the radiation plate 14 is relatively large, which can meet the heating requirements of the food, and at the same time better cover the exhaust passage, realizing the function of preventing blockage of the exhaust passage over a large area. The thickness of the radiation plate 14 can be 2 to 12 mm, such as suitable values like 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, etc.

[0148] Optionally, a temperature measuring device (not shown) for detecting the temperature in the pressure cooking cavity can also be provided inside the cover body 3. Optionally, a floating limit device (not shown) for restricting the position of an installation part can also be provided inside the cover body 3. The temperature measuring device and the floating limit device can be installed on the inner lining 6. Return to Figures 2 to 5 , the heating plate 21 of the heating assembly 20 is provided with a first installation opening 25 and a second installation opening 26. The cover plate 11 is provided with a first through hole 47 and a second through hole 48. The radiation plate 14 is provided with a temperature measuring hole 49 and a communication hole (not shown). The first installation opening 25, the first through hole 47, and the temperature measuring hole 49 are corresponding in the up-down position. The temperature measuring device can pass through the first installation opening 25, and its temperature measuring head extends into the temperature measuring hole 49 through the first through hole 47 and protrudes from the temperature measuring hole 49. The second installation opening 26, the second through hole 48, and the communication hole are corresponding in the up-down position. The floating limit device can pass through the second installation opening 26 and can communicate with the pressure cooking cavity through the second through hole 48 and the communication hole.

[0149] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the technical field of this application. The terms used herein are only for the purpose of describing specific implementation purposes and are not intended to limit this application. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0150] The present application has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative and explanatory purposes. The present application is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present application, and these variations and modifications all fall within the scope claimed by the present application.

Claims

1. A lid for an electrothermal pressure cooking appliance, the electrothermal pressure cooking appliance comprising a cooking pot body and the lid, the lid being pivotally provided on the cooking pot body to form a pressure cooking cavity between the lid and the cooking pot body, characterized in that, The cover body includes: A cover main body; and A detachable cover assembly detachably connected to the cover main body in the form of a component, and the detachable cover assembly includes: A cover plate; A pressure control device provided on the cover plate, and the pressure control device is provided with an exhaust passage; and A radiation plate for radiating infrared rays to the pressure cooking cavity after being heated, the radiation plate is detachably connected to the side of the cover plate facing the pressure cooking cavity, and a first gap is formed between the upper surface of the radiation plate and the surface of the cover plate facing the pressure cooking cavity, so that the steam in the pressure cooking cavity is communicated with the exhaust passage through the periphery of the radiation plate and the first gap.

2. The cover according to claim 1, characterized in that, The radiation plate has a first area S1 in the extending direction of the surface of the cover plate facing the pressure cooking cavity, the radiation plate is located below the pressure control device and the first area S1 at least covers the projected area of the exhaust passage in the vertical projection direction.

3. The cover according to claim 2, characterized in that, The ratio between the first area S1 of the radiation plate and the second area S2 of the cover plate located in the pressure cooking cavity is 0.35 to 1.

4. The cover according to claim 1, characterized in that, The cover plate is provided with a cover plate opening, and the bottom of the pressure control device passes through the cover plate opening.

5. The cover according to claim 1, characterized in that, At least one exhaust hole is formed in the part of the radiation plate corresponding to the position of the pressure control device, and the exhaust hole communicates the pressure cooking cavity with the exhaust passage.

6. The cover according to claim 5, characterized in that, The aperture of the exhaust hole is smaller than the caliber of the passage opening at the bottom end of the exhaust passage.

7. The cover body according to claim 5, wherein The radiation plate is provided with a positioning hole near the exhaust hole, the cover plate is connected with a positioning member, and the lower part of the positioning member passes through the positioning hole and protrudes from the lower surface of the radiation plate, Or the radiation plate is provided with a convex part near the exhaust hole, and the convex part protrudes downward from the lower surface of the radiation plate.

8. The cover according to claim 1, characterized in that, The radiation plate has a spacing with the cover plate at least in the part corresponding to the position of the pressure control device to form at least the first gap for communicating with the pressure cooking cavity, and the first gap formed by the spacing extends at least toward the periphery of the cover plate closer to the pressure control device.

9. The cover according to claim 1, characterized in that, The pressure control device is arranged at the rear end of the cover plate, and there is a spacing between the rear end of the radiation plate and the rear end of the cover plate to form at least the first gap.

10. The cover according to claim 1, wherein, A second gap is formed between the peripheral side surface of the radiation plate and the cover plate, and the second gap is communicated with the first gap.

11. The cover according to any one of claims 1 to 10, characterized in that, The cover plate forms an upwardly concave mounting portion, the top wall of the mounting portion is provided with a cover plate opening, the pressure control device is mounted on the top wall of the mounting portion through the cover plate opening, and the bottom of the pressure control device is located in the depression of the mounting portion.

12. The cover according to any one of claims 1 to 10, characterized in that, The pressure control device is mounted on the cover plate at the cover plate opening so as to be detached from the cover body together with the detachable cover assembly.

13. The cover according to any one of claims 1 to 10, characterized in that, The cover body further includes a steam channel structure for forming a steam channel, the steam channel structure includes a steam valve and a steam seal, the steam seal is arranged at the bottom of the steam valve and abuts against the upper surface of the cover plate, and the pressure control device is located in the steam channel.

14. The cover according to any one of claims 1 to 10, characterized in that The radiation plate is detachably connected to the cover plate through at least one fastening component; and / or the pressure control device includes a pressure valve.

15. The cover according to any one of claims 1 to 10, characterized in that, The cover body further includes a heating component for heating the radiation plate, and the heating component is located on the upper side of the detachable cover component and abuts against the cover plate.

16. The cover according to claim 15, characterized in that, The heating component is floating relative to the detachable cover component in a direction close to and away from the detachable cover component.

17. An electrothermal pressure cooking appliance, characterized in that, The electrothermal pressure cooking appliance includes a cooking pot body and a cover body according to any one of claims 1 to 16, and the cover body is openably and closably arranged on the cooking pot body to form a pressure cooking cavity between the cover body and the cooking pot body.

18. The electrothermal pressure cooking appliance according to claim 17, wherein, The cooking pot body includes an inner pot, the opening of the inner pot has a third area S3 on a horizontal plane, and the ratio of the first area S1 of the radiation plate to the third area S3 of the opening of the pot is 0.35 to 1.

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