Pot cover assembly and cooking utensil

Abstract

The pot cover assembly comprises a cover body, a mounting groove is formed in the top face of the cover body, an exhaust valve and a pressure change-over valve are arranged in the mounting groove, the pressure change-over valve has a conducting state and a closed state, a mounting area and a water collecting area are arranged in the mounting groove, and the mounting area is higher than the water collecting area. The pressure change-over valve is arranged in the installation area, and a heating piece is arranged in the water collection area. The mounting groove is separated from the interior of the pot cover, so that airflow and liquid can be collected in the mounting groove and are difficult to enter the pot cover, and the cleaning convenience is improved. The pressure change-over valve is arranged in the high mounting area, and the heating piece is arranged in the low water collecting area, so that liquid flows to the water collecting area under the action of gravity and is collected in the water collecting area, the liquid is heated and evaporated under the heating action of the heating piece, the liquid is eliminated, and the cleaning burden of a user is relieved.

Description

A pot lid assembly and cooking utensil Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a pot lid assembly and a cooking utensil. Background Technology

[0002] Pressure cookers (such as electric pressure cookers) are common cooking appliances in household kitchens. However, electric pressure cookers can usually only perform pressure cooking and cannot perform atmospheric pressure cooking. If users want to use atmospheric pressure cooking, they can only purchase an atmospheric pressure rice cooker or other cooking appliances separately.

[0003] In recent years, a multi-functional cooking appliance has emerged that can perform both pressure cooking (used as an electric pressure cooker) and atmospheric pressure cooking (used as a regular rice cooker), integrating both functions into one machine and significantly improving the user experience. The working principle of this multi-functional cooking appliance is as follows: a pressure switching device is installed on the lid. By controlling the opening and closing of this device, the cooking mode is switched. Specifically, when the inside of the pot is connected to the outside through the pressure switching device, it is in atmospheric pressure cooking mode. In this mode, the inside and outside of the pot remain connected, thus achieving atmospheric pressure cooking. When the pressure switching device is closed, it is in pressure cooking mode, allowing pressure to build up inside the pot during cooking, achieving pressure cooking.

[0004] To meet venting requirements, the venting channel of the pressure switching device is typically designed with a large inner diameter, resulting in a large venting volume when it is in the open state. Therefore, during venting, liquid inside the pot may rise with the gas and enter the lid. Simultaneously, the condensation of steam during venting can also form condensate that enters the lid, causing liquid to accumulate inside and become difficult to drain and clean. Over time, this can lead to unpleasant odors inside the lid and pose a risk of water damage to the electrical components within the lid. Summary of the Invention

[0005] This invention provides a pot lid assembly and cooking appliance to solve the problem that liquid enters the pot lid during the venting process of the pressure switching device, causing the pot lid to become contaminated and increasing the user's cleaning burden.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A pot lid assembly includes a lid body, the top surface of which is provided with a mounting groove. An exhaust valve and a pressure conversion valve are provided in the mounting groove. The pressure conversion valve has an open state and a closed state. The mounting groove has an installation area and a water collection area. The installation area is higher than the water collection area. The pressure conversion valve is located in the installation area. A heating element is provided in the water collection area.

[0008] In this invention, the pressure conversion valve has an open state and a closed state, thus enabling the cooking appliance to have both atmospheric pressure cooking mode and high pressure cooking mode. In atmospheric pressure cooking mode, the cooking chamber is connected to the outside atmosphere through the pressure conversion valve, and the pot remains at atmospheric pressure throughout the cooking process. In high pressure cooking mode, the cooking chamber is isolated from the outside environment at the pressure conversion valve, so that after the float is raised, the cooking chamber is completely isolated from the outside environment, and pressure can be applied inside the cooking chamber for high-pressure cooking.

[0009] In this invention, the top surface of the lid is provided with a mounting groove, and the pressure conversion valve and the exhaust valve are located inside the mounting groove. When the valves exhaust, the airflow enters the mounting groove and then exits to the outside. The mounting groove is separated from the inside of the lid, allowing airflow and liquid to be collected within the mounting groove, preventing them from entering the inside of the lid and thus improving cleaning convenience. Furthermore, the mounting groove has an installation area and a water collection area. The pressure conversion valve is located in the higher installation area, while a heating element is located in the lower water collection area. This causes liquid to flow towards the water collection area under gravity and be collected there. Heating by the heating element evaporates the liquid, thus eliminating the need for a dedicated water collection box and reducing the user's cleaning burden.

[0010] The water collection area includes a first platform and a second platform. The first platform is higher than the second platform. The air vent is located on the first platform, and the heating element is located on the second platform.

[0011] In this design, the first platform of the water collection area is higher than the second platform. The vent valve is located on the first platform, and the heating element is located on the second platform. This allows the area where the heating element is located to collect liquid not only from the pressure conversion valve but also from the vent valve. In other words, the area where the heating element is located is the lowest point in the installation tank. Liquid in the installation tank can flow to the area where the heating element is located under gravity, where it is heated and evaporated. This process eliminates as much liquid as possible in the installation tank, ensuring its cleanliness and dryness.

[0012] The exhaust valve includes an exhaust pipe and a counterweight located at the top of the exhaust pipe. The pot lid assembly is also equipped with a pusher for lifting the counterweight, which is located on the side of the first platform near the second platform.

[0013] In this design, the pusher is used to lift the weight, thereby removing its obstruction of the exhaust pipe and allowing the exhaust pipe to open for ventilation. The pusher is located on one side of the exhaust pipe, applying a pushing force to one side of the weight to lift it. When the weight is lifted, it is in an inclined state, with the side receiving the pushing force higher, thus allowing more airflow to exit from the side where the pusher is located. Therefore, by placing the pusher on the side of the first platform closer to the second platform, the airflow and liquid flow out from the side closer to the second platform. This ensures that the steam is heated by the heating element during its flow, reducing the possibility of liquefaction into condensate. Simultaneously, the liquid flows more easily to the second platform, where it is heated and evaporates.

[0014] The pot lid assembly also includes a seal disposed in the mounting groove, the seal forming a mounting position in the water collection area, and the heating element disposed in the mounting position.

[0015] In this design, the lid is typically made of materials such as plastic, which have relatively weak high-temperature resistance. Therefore, a sealing element surrounds the heating element, providing insulation and preventing direct contact between the heating element and the lid. This reduces the heat transferred from the heating element to the lid, extending the lid's lifespan. Simultaneously, the sealing element also seals the gap between the heating element and the lid, preventing liquid and impurities from entering the lid through the gap.

[0016] The heating element is fixed to the bottom wall of the mounting groove to form the surface of at least a portion of the water collection area, and the heating element is able to contact the liquid and heat it.

[0017] In this design, the heating element is fixed to the bottom wall of the mounting groove. Therefore, when the liquid flows into the water collection area, it can directly contact the heating element. The heating element heats the liquid through contact, which has a higher heat transfer efficiency. This results in the heating element having a higher heating efficiency for the liquid, allowing the liquid to evaporate and disappear as quickly as possible, thus improving the efficiency of eliminating condensate and other liquids.

[0018] A step is provided between the installation area and the water collection area, the step having a flow-guiding transition surface that extends downward toward the water collection area; and / or, the installation area is provided with a flow-guiding slope that extends downward toward the direction of the water collection area.

[0019] In this design, a flow-guiding transition surface is provided between the installation area and the water collection area. This allows liquid in the installation area to flow into the water collection area under the guidance of the transition surface, preventing prolonged accumulation of liquid in the installation area and reducing the risk of backflow into the pot or lid. Similarly, by providing a sloping flow-guiding surface that extends downwards towards the water collection area throughout the installation area, liquid in the installation area can also be guided to flow towards the water collection area, reducing the likelihood of liquid accumulation in the installation area.

[0020] The pot lid assembly also includes a vent box, which is located at the mounting slot to cover the mounting slot. The vent box has an vent chamber inside that communicates with the pressure conversion valve and the vent valve. The top surface of the vent box has an vent port that communicates with the vent chamber.

[0021] In this design, an exhaust box is installed in the mounting slot, and an exhaust chamber is constructed inside the exhaust box. This allows the pressure switching valve and the exhaust valve to exhaust air through the exhaust chamber. The exhaust box, by constructing a tortuous exhaust channel inside, elongates the exhaust air path, thereby reducing airflow energy and exhaust noise. It also helps collect some condensate and other liquids within the exhaust box, further reducing the risk of liquids entering the lid or flowing back into the pot.

[0022] The exhaust chamber includes a first exhaust channel and a second exhaust channel that are separated from each other. The first exhaust channel is connected to an exhaust valve, and the second exhaust channel is connected to a pressure switching valve. The exhaust port includes a first exhaust port connected to the first exhaust channel and a second exhaust port connected to the second exhaust channel.

[0023] In this design, the first and second exhaust channels are separated. This ensures that the airflow from the exhaust valve and the pressure conversion valve does not mix, allowing each to exit independently and guaranteeing its own exhaust efficiency. It also prevents turbulence caused by collisions between the two airflows, which would generate noise and affect exhaust efficiency. Furthermore, the airflow and liquid ejected from the exhaust valve can only flow within the first exhaust channel and cannot enter the second exhaust channel, thus preventing them from reaching the pressure conversion valve and entering the lid, and vice versa. This design prevents hot air from flowing back into the lid, causing it to overheat and providing a better tactile experience for the user. It also prevents thick soup overflowing from the exhaust valve from flowing to the pressure conversion valve and causing it to stick, ensuring the pressure conversion valve remains unobstructed.

[0024] The exhaust box is detachably connected to the cover. The top surface of the cover is also provided with a hand slot, which is located at the edge of the mounting groove and communicates with the mounting groove.

[0025] In this design, when the user removes the exhaust box from the cover, the inside of the exhaust box can be cleaned separately. Simultaneously, the mounting slot is open, allowing for easy cleaning of its interior as well. This reduces the difficulty of cleaning and helps ensure the cleanliness of the exhaust components. The hand grip provides space for the user's hands, allowing them to insert their fingers to grasp the exhaust box and remove it from the mounting slot. This makes disassembling the exhaust box simpler and more convenient, improving the user experience.

[0026] This utility model also discloses a cooking appliance, including a pot body and the aforementioned pot lid assembly. The pot lid assembly and the pot body cooperate to form a cooking cavity. The cooking appliance also includes a control unit, which is used to control the pressure conversion valve to switch between an open state and a closed state. When the pressure conversion valve is in the open state, the cooking appliance is in a normal pressure cooking mode. When the pressure conversion valve is in the closed state, the cooking appliance is in a pressure cooking mode. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0028] Figure 1 is a structural schematic diagram of the cover body according to one embodiment of the present invention;

[0029] Figure 2 is an exploded view of the structure of a portion of the pot lid assembly according to one embodiment of the present invention.

[0030] Figure 3 is a cross-sectional view of a cooking utensil according to one embodiment of the present invention;

[0031] Figure 4 is an enlarged view of region A in Figure 3;

[0032] Figure 5 is a cross-sectional view of the exhaust box according to one embodiment of the present invention.

[0033] in:

[0034] 1. Cover; 11. Mounting groove; 12. Mounting area; 121. Flow guide transition surface; 13. Water collection area; 131. First platform; 132. Second platform; 14. Air vent valve; 141. Air vent pipe; 142. Counterweight; 15. Float valve; 16. Hand groove; 17. Mounting port;

[0035] 2. Exhaust box; 21. Exhaust port; 211. First exhaust port; 212. Second exhaust port; 22. First exhaust passage; 23. Second exhaust passage;

[0036] 3 Heating element; 31 Sealing element; 32 Fixing bracket. Detailed Implementation

[0037] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0038] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0039] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] As shown in Figure 1, a pot lid assembly includes a lid body 1. The top surface of the lid body 1 is provided with a mounting groove 11. An exhaust valve 14 and a pressure conversion valve (not shown in the figure) are provided in the mounting groove 11. The pressure conversion valve has an open state and a closed state. The mounting groove 11 has an installation area 12 and a water collection area 13. The installation area 12 is higher than the water collection area 13. The pressure conversion valve is located in the installation area 12. A heating element 3 is provided in the water collection area 13.

[0043] It should be noted that the pressure switching valve is used to switch the cooking mode of the cooking appliance, and the exhaust valve 14 is used to release the gas in the pot after pressure cooking is completed, thereby achieving pressure reduction.

[0044] The pressure conversion valve has an open and closed state, enabling the cooking appliance to operate in both atmospheric pressure and high-pressure cooking modes. In atmospheric pressure cooking mode, the cooking chamber is connected to the outside atmosphere through the pressure conversion valve, and the pot remains at atmospheric pressure throughout the cooking process. In high-pressure cooking mode, the cooking chamber is isolated from the outside environment at the pressure conversion valve. Thus, after the float is raised, the cooking chamber is completely isolated from the outside, allowing pressure to build up within the cooking chamber for high-pressure cooking.

[0045] In this invention, the top surface of the lid 1 is provided with a mounting groove 11. The pressure conversion valve and the exhaust valve 14 are located inside the mounting groove 11. When the two exhaust, the airflow enters the mounting groove 11 and then exits to the outside. The mounting groove 11 is separated from the inside of the lid, so that the airflow and liquid are collected in the mounting groove 11 and are difficult to enter the inside of the lid, thereby improving the convenience of cleaning. In addition, the mounting groove 11 has a mounting area 12 and a water collection area 13. The pressure conversion valve is located in the higher mounting area 12, and a heating element 3 is provided in the lower water collection area 13. The liquid flows to the water collection area 13 under the action of gravity and is collected in the water collection area 13. Under the heating action of the heating element 3, the liquid will evaporate, thus eliminating the need for a special water collection box and reducing the cleaning burden on the user.

[0046] As a preferred embodiment of the present invention, as shown in Figure 1, the water collection area 13 includes a first platform 131 and a second platform 132. The first platform 131 is higher than the second platform 132. The exhaust valve 14 is disposed on the first platform 131, and the heating element 3 is disposed on the second platform 132.

[0047] The first platform 131 of the water collection area 13 is higher than the second platform 132. The vent valve 14 is located on the first platform 131, and the heating element 3 is located on the second platform 132. This allows the area where the heating element 3 is located to collect not only the liquid at the pressure conversion valve but also the liquid at the vent valve 14. In other words, the area where the heating element 3 is located is the lowest point in the installation tank 11. The liquid in the installation tank 11 can flow to the area where the heating element 3 is located under the action of gravity, so that the liquid is heated by the heating element 3 and evaporates, thereby eliminating as much liquid as possible in the installation tank 11 and ensuring the cleanliness and dryness of the installation tank 11.

[0048] At the same time, since the area where the exhaust valve 14 is located is lower than the area where the pressure switching valve is located, the risk of liquid overflowing from the exhaust valve 14 flowing to the pressure switching valve is reduced, thereby reducing the possibility of liquid flowing back into the pot through the pressure switching valve.

[0049] Preferably, as shown in Figure 1, the first platform 131 is further provided with a float valve 15. The float valve 15 can float up and down under the push of the gas in the pot, so as to have a floating sealing state and a falling connecting state.

[0050] Preferably, as shown in FIG1, the cover 1 is provided with an installation port 17 for the installation and passage of the pressure conversion valve and an exhaust valve 14 in the installation groove 11. A sealing ring is provided between the pressure conversion valve and the edge of the installation port 17 and between the exhaust valve 14 and the edge of the exhaust port.

[0051] Specifically, as shown in Figures 1 and 4, the exhaust valve 14 includes an exhaust pipe 141 and a counterweight 142 disposed at the top of the exhaust pipe 141.

[0052] Preferably, the pot lid assembly is further provided with a pusher for lifting the counterweight 142, and the pusher is located on the side of the first platform 131 near the second platform 132.

[0053] The pusher is used to lift the counterweight 142, thereby removing the blockage of the exhaust pipe 141 by the counterweight 142 and allowing the exhaust pipe 141 to be open for exhaust. The pusher is located on one side of the exhaust pipe 141, applying a pushing force to one side of the counterweight 142 to lift it. When the counterweight 142 is lifted, it is in an inclined state, with the side receiving the pushing force from the pusher being higher. Therefore, more airflow will flow out from the side where the pusher is located. Thus, by placing the pusher on the side of the first platform 131 close to the second platform 132, the airflow and liquid flow out from the side close to the second platform 132. During the steam flow, it will be heated by the heating element 3, thereby reducing the possibility of liquefaction into condensate. At the same time, the liquid can more easily flow to the second platform 132, be heated, and evaporate.

[0054] Of course, the pusher can also be set on other sides of the exhaust pipe 141, such as the side away from the second platform 132 as shown in Figure 4, as long as it can lift the hammer 142, and there is no limitation here.

[0055] Preferably, as shown in Figures 1 and 2, the pot lid assembly further includes a sealing element 31 disposed in the mounting groove 11, the sealing element 31 forming a mounting position in the water collection area 13, and the heating element 3 disposed in the mounting position.

[0056] The lid 1 is typically made of materials such as plastic, which have relatively weak high-temperature resistance. Therefore, a sealing element 31 surrounds the heating element 3, providing insulation and preventing direct contact between the heating element 3 and the lid 1. This reduces the heat transferred from the heating element 3 to the lid 1 and extends the lifespan of the lid 1. Simultaneously, the sealing element 31 also seals the gap between the heating element 3 and the lid 1, preventing liquid and impurities in the mounting groove 11 from entering the lid through the gap.

[0057] Preferably, the seal 31 is made of silicone, which can seal the gap through elastic deformation and has good thermal insulation properties.

[0058] It should be noted that the present invention does not limit the method of heating the liquid in the mounting groove 11 by the heating element 3. In a preferred embodiment, as shown in Figures 1, 3 and 4, the heating element 3 is fixed to the bottom wall of the mounting groove 11 to form the surface of at least a part of the water collection area 13, and the heating element 3 can contact the liquid to heat it.

[0059] The heating element 3 is fixed to the bottom wall of the mounting groove 11. Therefore, when the liquid flows into the water collection area 13, it can directly contact the heating element 3. The heating element 3 heats the liquid through contact, and the heat transfer efficiency of contact heat transfer is higher. This makes the heating element 3 have a higher heating efficiency for the liquid, so that the liquid can evaporate and disappear as quickly as possible, and improve the efficiency of eliminating liquids such as condensate.

[0060] Specifically, as shown in Figures 1 and 2, the heating element 3 is a PTC heating plate, which is fixed to the bottom wall of the mounting groove 11, and its surface is flush with the surface of the water collection area 13. As shown in Figure 2, the pot lid assembly also includes a fixing bracket 32, and the heating element 3 is fixed to the fixing bracket 32, which in turn fixes it to the lid body 1.

[0061] In another embodiment, the heating element 3 can completely cover the bottom wall of the water collection area 13 or the mounting groove 11 to increase the contact area between the heating element 3 and the liquid in the mounting groove 11 and improve the heating effect.

[0062] In another embodiment of this utility model, the heating element 3 heats the liquid in the mounting groove 11 by thermal radiation. Specifically, there can be a gap between the heating element 3 and the bottom wall of the water collection area 13. For example, the heating element 3 can be set on the side wall or top wall of the mounting groove 11. The heating element 3 heats the air in the mounting groove 11, and then the heat is transferred to the liquid through radiation heat transfer, so that the liquid is heated and evaporated.

[0063] In a preferred embodiment, as shown in FIG1, a stepped portion is provided between the installation area 12 and the water collection area 13, the stepped portion having a flow-guiding transition surface 121 extending downward towards the water collection area 13. By providing the flow-guiding transition surface 121 between the installation area 12 and the water collection area 13, the liquid in the installation area 12 can flow into the water collection area 13 under the guidance of the flow-guiding transition surface 121, avoiding the long-term accumulation of liquid in the installation area 12 and reducing the risk of backflow into the pot or the inside of the pot lid.

[0064] Specifically, the flow guiding transition surface 121 can be a slope, an arc surface, etc., as long as it can guide the liquid in the installation area 12 to flow into the water collection area 13.

[0065] In another embodiment, the installation area 12 is provided with a guide slope extending downward toward the water collection area 13. By providing a guide slope extending downward toward the water collection area 13 throughout the installation area 12, the liquid in the installation area 12 can also be guided to flow toward the water collection area 13, reducing the accumulation of liquid in the installation area 12.

[0066] Preferably, the lid assembly further includes a shielding component, which is used to cover the mounting groove 11 to shield components such as the pressure switching valve and the exhaust valve 14. Specifically, the shielding component can be a cover plate, which covers the mounting groove 11, and the cover plate has an exhaust port 21 for the gas flowing out of the pressure switching valve and the exhaust valve 14 to be discharged.

[0067] As a preferred embodiment, as shown in Figures 2 and 3, the pot lid assembly also includes an exhaust box 2. The exhaust box 2 is disposed at the mounting groove 11 to cover the mounting groove 11. The exhaust box 2 has an exhaust chamber that communicates with the pressure conversion valve and the exhaust valve 14. The top surface of the exhaust box 2 has an exhaust port 21 that communicates with the exhaust chamber.

[0068] The exhaust box 2 shields the exhaust valve 14 and the pressure switching valve, achieving a concealed design for each exhaust structure and improving the simplicity and aesthetics of the lid assembly. Simultaneously, by constructing an exhaust chamber inside the exhaust box 2, the pressure switching valve and exhaust valve 14 can exhaust air through this chamber. The exhaust box 2, with its internally constructed tortuous exhaust channels, elongates the exhaust path, thereby reducing airflow energy and exhaust noise. It also helps collect some condensate and other liquids within the exhaust box 2, further reducing the risk of liquid entering the lid or flowing back into the pot.

[0069] As a preferred embodiment of this implementation, as shown in FIG5, the exhaust chamber includes a first exhaust channel 22 and a second exhaust channel 23 that are separated from each other. The first exhaust channel 22 is connected to the exhaust valve 14, and the second exhaust channel 23 is connected to the pressure switching valve. The exhaust port 21 includes a first exhaust port 211 connected to the first exhaust channel 22 and a second exhaust port 212 connected to the second exhaust channel 23.

[0070] The first exhaust channel 22 and the second exhaust channel 23 are separated from each other. On the one hand, this prevents the airflow from the exhaust valve 14 and the pressure conversion valve from mixing, ensuring their respective exhaust efficiency and avoiding turbulence caused by collisions between the two airflows, which would generate noise and affect exhaust efficiency. On the other hand, the airflow and liquid ejected from the exhaust valve 14 can only flow within the first exhaust channel 22 and cannot enter the second exhaust channel 23, thus preventing them from reaching the pressure conversion valve and entering the inside of the pot lid, and vice versa. In this way, it avoids hot airflow flowing back into the pot lid, causing the pot lid to heat up and ensuring a better tactile experience for the user when operating the pot lid. It also prevents thick soup overflowing from the exhaust valve 14 from flowing to the pressure conversion valve and causing it to stick, ensuring the smooth flow of the pressure conversion valve.

[0071] It is understandable that the exhaust valve 14 and the pressure switching valve can exhaust simultaneously or independently. Regardless of whether they exhaust simultaneously or independently, the airflow they discharge is within their respective chambers and will not flow into another chamber.

[0072] In one embodiment, the first exhaust channel 22 and the second exhaust channel 23 are arranged horizontally side by side to simplify the internal structure of the exhaust box 2, facilitate manufacturing, and allow the user to clean the interior. Of course, in other embodiments, one of the first exhaust channel 22 and the second exhaust channel 23 may surround the outer periphery of at least a portion of the other to reduce the overall volume of the exhaust box 2; this is not a limitation.

[0073] Preferably, as shown in Figures 1, 2, and 3, the exhaust box 2 is detachably connected to the cover 1, and the top surface of the cover 1 is also provided with a hand groove 16, which is located at the edge of the mounting groove 11 and communicates with the mounting groove 11.

[0074] When the user removes the exhaust box 2 from the cover 1, the inside of the exhaust box 2 can be cleaned separately. At the same time, the mounting slot 11 opens, allowing the user to easily clean the inside of the mounting slot 11 as well, thus reducing the difficulty of cleaning and helping to ensure the cleanliness of the exhaust components. The hand groove 16 provides space for the user's hands, allowing the user to insert their fingers into the hand groove 16 to grasp the exhaust box 2 and then remove it from the mounting slot 11. This makes disassembling the exhaust box 2 simpler and more convenient, improving the user experience.

[0075] Specifically, the exhaust box 2 can be fixed to the cover 1 by snap-fit. For example, snap-fit ​​structures can be provided on the walls of the exhaust box 2 and the mounting groove 11 to allow them to engage. When disassembling the exhaust box 2, the user can insert their hand into the handle groove 16 to disengage the exhaust box 2 from the cover 1. The exhaust box 2 can also be fixed to the mounting groove 11 by interference fit. For example, a sealing ring can be provided on the outer periphery of the exhaust box 2. By inserting the exhaust box 2 into the mounting groove 11, the two forces the sealing ring together, thereby confining the exhaust box 2 within the mounting groove 11 under the action of frictional resistance.

[0076] This utility model also discloses a cooking appliance, including a pot body and the aforementioned pot lid assembly. The pot lid assembly and the pot body cooperate to form a cooking cavity. The cooking appliance also includes a control unit, which is used to control the pressure conversion valve to switch between an open state and a closed state. When the pressure conversion valve is in the open state, the cooking appliance is in a normal pressure cooking mode. When the pressure conversion valve is in the closed state, the cooking appliance is in a pressure cooking mode.

[0077] It should be noted that this utility model does not limit the control method of the pressure conversion valve. In one embodiment, the pot lid assembly is provided with a driving component, which is electrically connected to the control unit of the cooking appliance to control the pressure conversion valve to switch between the open and closed states.

[0078] By electrically connecting the drive unit to the control unit, the pressure switching valve is associated with the control program of the cooking appliance, thereby realizing the automatic switching of different states of the pressure switching valve. This process does not require manual operation by the user, reducing the difficulty of operation for the user.

[0079] In another embodiment, the pot lid assembly is provided with a drive element and an operating element, the operating element being used to drive the drive element to switch the pressure switching valve between an on state and a closed state.

[0080] By setting up an operating component, manual control of the drive component can be achieved. Users can drive the operating component to switch the state of the pressure conversion valve. Through manual operation, the functional flexibility of the cooking appliance is further improved. Users can adjust and set the cooking mode according to their needs to meet different cooking requirements.

[0081] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0082] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0083] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A pot lid assembly, characterized in that, The device includes a cover, the top surface of which is provided with a mounting groove. An exhaust valve and a pressure conversion valve are provided in the mounting groove. The pressure conversion valve has an open state and a closed state. The mounting groove has an installation area and a water collection area. The installation area is higher than the water collection area. The pressure conversion valve is located in the installation area. A heating element is provided in the water collection area.

2. The pot lid assembly according to claim 1, characterized in that, The water collection area includes a first platform and a second platform, with the first platform being higher than the second platform. The vent valve is located on the first platform, and the heating element is located on the second platform.

3. The pot lid assembly according to claim 2, characterized in that, The exhaust valve includes an exhaust pipe and a counterweight disposed at the top of the exhaust pipe. The pot lid assembly is also provided with a pusher for lifting the counterweight, and the pusher is disposed on the side of the first platform near the second platform.

4. The pot lid assembly according to claim 1, characterized in that, The pot lid assembly also includes a sealing element disposed in the mounting groove, the sealing element forming a mounting position in the water collection area, and the heating element disposed in the mounting position.

5. The pot lid assembly according to claim 1, characterized in that, The heating element is fixed to the bottom wall of the mounting groove to form the surface of at least a portion of the water collection area, and the heating element is capable of contacting and heating the liquid.

6. The pot lid assembly according to claim 1, characterized in that, A step is provided between the installation area and the water collection area, the step having a flow-guiding transition surface that extends downward toward the water collection area; and / or, the installation area is provided with a flow-guiding slope that extends downward toward the direction of the water collection area.

7. The pot lid assembly according to claim 1, characterized in that, The pot lid assembly also includes a vent box, which is disposed at the mounting groove to cover the mounting groove. The vent box has an vent chamber inside that communicates with the pressure conversion valve and the vent valve. The top surface of the vent box has an vent port that communicates with the vent chamber.

8. The pot lid assembly according to claim 7, characterized in that, The exhaust chamber includes a first exhaust channel and a second exhaust channel that are separated from each other. The first exhaust channel is connected to the exhaust valve, and the second exhaust channel is connected to the pressure switching valve. The exhaust port includes a first exhaust port connected to the first exhaust channel and a second exhaust port connected to the second exhaust channel.

9. The pot lid assembly according to claim 7, characterized in that, The exhaust box is detachably connected to the cover, and the top surface of the cover is also provided with a hand groove, which is located at the edge of the mounting groove and communicates with the mounting groove.

10. A cooking utensil, comprising a pot body, characterized in that, It also includes a lid assembly as described in any one of claims 1-9, the lid assembly cooperating with the pot body to form a cooking cavity, the cooking appliance further including a control unit, the control unit being used to control the pressure conversion valve to switch between the open state and the closed state, when the pressure conversion valve is in the open state, the cooking appliance is in the normal pressure cooking mode, when the pressure conversion valve is in the closed state, the cooking appliance is in the pressure cooking mode.

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