Water-cooling pot cover assembly and pressure cooking utensil

Abstract

The utility model discloses a water cooling pot cover assembly and a pressure cooking utensil, the pot cover assembly comprises a cover body and an inner cover detachably installed on the cover body, the inner cover is used for being matched with a pot body to form a cooking cavity, the pot cover assembly is further provided with a cooling piece protruding out of the lower surface of the inner cover to stretch into the cooking cavity, and a cooling cavity is formed in the cooling piece; a holding handle is arranged on the lower surface of the inner cover in a protruding mode and surrounds the periphery of the cooling piece, a first space is formed in the inner side of the holding handle, a second space is formed in the outer side of the holding handle, and a communication opening communicating the first space with the second space is formed in the side wall of the holding handle. The communication opening accelerates air circulation in the first space and the second space, the flowing efficiency of cold and hot air is improved, then the contact effect and heat exchange efficiency of the cooling piece and air in the cooking cavity are improved, the water-cooling pressure reduction efficiency is improved, rapid cover opening is facilitated, the waiting time of a user is shortened, and the use experience is improved.

Description

A water-cooled pot lid assembly and a pressure cooking appliance Technical Field

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

[0002] Traditional pressure cookers, such as electric pressure cookers, typically release pressure by venting after cooking. This method is not only inefficient and time-consuming, but also generates significant noise, resulting in a poor user experience. Therefore, some existing pressure cookers use water cooling to release pressure, rapidly reducing the internal temperature and achieving quick pressure reduction.

[0003] In the prior art, some water-cooled pressure cooking appliances have a cooling element in the lid. The cooling element has a cooling chamber inside for the flow of coolant. The cooling element extends into the cooking chamber, so that it can directly contact the air in the cooking chamber to cool it down.

[0004] In addition, for easy cleaning, some pressure cookers are equipped with a removable inner cover, through which the cooling component extends into the cooking chamber. Since the removable inner cover is detachable, it is equipped with a handle structure for easy gripping. The handle structure is a single, stretched cylindrical structure. After the removable inner cover is installed, the handle structure surrounds the outer periphery of the cooling component, enclosing it within its internal space.

[0005] However, the handle structure with the removable inner cover surrounds the cooling component, hindering the airflow between the inside and outside of the handle. This results in poor contact between the cooling component and the air inside the cooking cavity, leading to low efficiency in heat exchange. Consequently, the water cooling effect is poor, and it cannot quickly reduce the air pressure inside the cooking cavity, causing the pressure reduction to take a long time, which affects the user experience. Summary of the Invention

[0006] This utility model provides a water-cooled pot lid assembly and a pressure cooking appliance to solve the problem that the handle of the inner lid obstructs the flow of air between the inside and outside, resulting in poor contact between the cooling components and the air in the cooking cavity, making it impossible to carry out large-area heat exchange and causing low water-cooling pressure reduction efficiency.

[0007] The technical solution adopted in this utility model is as follows:

[0008] A water-cooled pot lid assembly includes a lid body and an inner lid detachably installed on the lid body. The inner lid is used to cooperate with the pot body to form a cooking cavity. The pot lid assembly is also provided with a cooling element that protrudes from the lower surface of the inner lid and extends into the cooking cavity. The cooling element has a cooling cavity inside. A handle is protruding from the lower surface of the inner lid. The handle surrounds the outer periphery of the cooling element. A first space is formed inside the handle, and a second space is formed outside the handle. A communication opening connecting the first space and the second space is opened on the side wall of the handle.

[0009] In this invention, a first space is formed on the inner side of the handle, and a second space is formed on the outer side. The cooling component is located in the first space, and a connecting port is provided on the side wall of the handle to connect the first and second spaces. This accelerates the air circulation in the first and second spaces. The cooling component, located in the first space, can directly cool the air in the first space through contact with it. The cooled air can flow into the second space through the connecting port, while the hot air in the second space can also continuously enter the first space through the connecting port to be cooled. This improves the flow efficiency of hot and cold air, thereby improving the contact effect and heat exchange efficiency between the cooling component and the air in the cooking cavity, improving the water cooling depressurization efficiency, helping to achieve quick opening of the lid, reducing user waiting time, and improving the user experience.

[0010] In addition, the grip handle surrounds the cooling component, which ensures that the grip handle is cooled first when the coolant enters the cooling component, making the grip handle relatively cool, thus making it convenient for users to hold and preventing burns.

[0011] The lower edge of the cooling element is lower than the lower edge of the grip handle, so that the cooling element has a shielding section surrounded by the grip handle and an exposed section extending outside the first space.

[0012] In this design, the lower end of the cooling component extends beyond the first space, creating an exposed section. This exposed section is not enclosed by the handle, placing it within a more open space. This increases the contact area between the exposed section and the hot air inside the cooking cavity. The hot air can exchange heat not only with the side walls of the exposed section but also with its bottom. Furthermore, the airflow at the exposed section is not obstructed by the handle, resulting in better airflow and further improving the heat exchange efficiency between the exposed section and the hot air inside the cooking cavity. Consequently, this enhances the overall cooling effect of the cooling component.

[0013] The lower end of the exposed section is provided with a flow guide transition surface to guide liquid droplets from the surface of the cooling component.

[0014] In this design, because the exposed section is positioned lower, the liquid in the cooking cavity is more likely to come into contact with it when boiling, and thus adhere to the cooling component. Furthermore, when the hot air in the cooking cavity comes into contact with the cooler cooling component, it easily condenses into water and adheres to the cooling component. The guide transition surface directs the liquid droplets from the surface of the cooling component to fall off, preventing prolonged accumulation and thus avoiding contamination that could affect heat transfer efficiency, keeping the cooling component in a relatively clean state.

[0015] There are multiple connecting ports arranged circumferentially along the handle, each connecting port extends circumferentially along the handle, and there is a reinforcing wall between two adjacent connecting ports.

[0016] In this design, the connecting opening extends circumferentially along the handle, increasing its area and thus increasing airflow through it. This further improves airflow efficiency in both the first and second spaces, enhancing heat exchange. However, increasing the opening area reduces the structural strength of the handle. Since the handle's primary function is for user gripping, its low structural strength poses a risk of deformation or breakage when gripped or pulled with significant force. By installing a reinforcing wall between adjacent connecting openings, the structural strength of the handle, particularly in the area between the two openings, is improved while maintaining a larger opening area. This allows the handle to withstand greater forces and enhances structural stability.

[0017] The cooling component is located on the cover, and the inner cover has an installation opening through which the cooling component extends into the cooking cavity.

[0018] In this design, the cooling component is located on the cover. The lower end of the cooling component extends into the cooking cavity through the mounting opening of the inner cover. Since the cooling component is located on the cover, even if the inner cover can rotate relative to the cover, the cover will not move. This ensures that the position of the cooling component and the water cooling pipes connected to the cooling component will not change, thereby maintaining a stable connection and seal between the water cooling pipes and the cooling cavity, and improving the reliability of the pipe connection.

[0019] Furthermore, when the inner cover is removed from the outer cover, the cooling components remain on the cover and their position does not change with the installation or removal of the inner cover. This eliminates the need for users to connect the water-cooling piping to the cooling chamber during inner cover installation, reducing installation and removal efficiency and improving ease of use, thus enhancing the user experience. On the other hand, the water-cooling piping remains connected to the cooling chamber at all times, eliminating the need for frequent connection and ensuring a tight seal. This further reduces the risk of water-cooling fluid leakage and guarantees water-cooling efficiency.

[0020] The handle has a connecting part that is fixed to the mounting port. The connecting part has a through-hole for the cooling component to pass through, and a sealing element is provided between the edge of the through-hole and the cooling component.

[0021] In this design, the mounting opening of the inner cover not only serves to position the inner cover in conjunction with the cooling component, but also to secure the handle. This allows for multiple functions within a single structure, simplifying the inner cover's design and saving costs. During assembly, the handle is fixed to the edge of the mounting opening, and then the sealing component is fixed to the edge of the through-hole. When installing the inner cover, the cooling component passes through the through-hole, and its outer periphery abuts against the sealing component to prevent steam from the cooking cavity from entering the upper part of the inner cover through gaps and causing contamination inside the lid assembly.

[0022] The cooling component is positioned at the center of the inner cover, and the mounting opening is located at the center of the inner cover. The cover also has a downward-extending temperature sensor that passes through the inner cover and extends into the cooking cavity. The temperature sensor is eccentrically positioned relative to the inner cover.

[0023] In this design, the cooling component is positioned at the center of the inner cover, and the mounting opening is also located at the center of the inner cover. During installation, the inner cover can be positioned using the cooling component and the mounting opening, reducing installation difficulty and improving efficiency. Simultaneously, center positioning enhances the accuracy of the inner cover's positioning. The temperature sensor is staggered from the cooling component, allowing it to be relatively far from the cooling component, thus accurately detecting the temperature within the cooking cavity and preventing the temperature sensor's accuracy from being affected by being too close.

[0024] The cooling chamber is equipped with a partition rib, which divides the cooling chamber into an inlet channel and an outlet channel. The inlet channel and the outlet channel are connected at the bottom of the cooling chamber, and the projection of the connection opening toward the cooling component is located at the partition rib.

[0025] In this design, the internal partition ribs of the cooling chamber divide it into an inlet channel and an outlet channel. The coolant, at a lower temperature, enters the inlet channel and is filled with it, enabling efficient heat exchange with the air inside the pot and improving cooling performance. As the coolant in the inlet channel heats up after heat exchange, it gradually flows into the outlet channel, where the warmer coolant gathers and flows out. The partition ribs, located between the two channels, impede the flow of coolant, preventing excessive mixing of liquids with large temperature differences and minimizing heat exchange between them. This ensures efficient heat exchange between the coolant and the gas inside the cooking chamber. The projection of the connecting opening is located at the partition ribs, allowing hot air entering the first space through the opening to exchange heat with the coolant in both the inlet and outlet channels. This increases the contact area between the coolant and the hot air through the cooling component's outer shell and also prolongs the contact time between the cooling component and the hot air, improving cooling efficiency and effectiveness.

[0026] The partition ribs have helical segments that extend in a spiral shape along the axial direction of the cooling component.

[0027] In this design, the spirally arranged dividing ribs not only divide the cooling chamber into inlet and outlet channels, but also restrict the inlet and outlet channels to a spiral shape, thereby lengthening the length of the inlet and outlet channels, increasing the flow path of the coolant inside the cooling chamber, prolonging the residence time of the coolant inside the cooling chamber, and improving its heat exchange effect with the high-temperature gas in the cooking chamber.

[0028] This utility model also discloses a pressure cooking appliance, including a pot body and the aforementioned water-cooled pot lid assembly; the pot body or pot lid assembly is provided with a water tank, the water tank having an outlet and a return outlet, the outlet and the return outlet being respectively connected to a cooling chamber, so that the liquid in the water tank flows into the cooling chamber through the outlet and then flows back into the water tank through the return outlet. Attached Figure Description

[0029] 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:

[0030] Figure 1 is a cross-sectional view of a pot lid assembly according to one embodiment of the present invention;

[0031] Figure 2 is an exploded view of the inner cover and grip handle according to one embodiment of the present invention;

[0032] Figure 3 is a schematic diagram of the grip handle according to one embodiment of the present invention;

[0033] Figure 4 is an exploded view of the pot lid assembly according to one embodiment of the present invention;

[0034] Figure 5 is a cross-sectional view of a portion of the pot lid assembly according to one embodiment of the present invention.

[0035] in:

[0036] 1. Cover;

[0037] 2. Inner cover; 21. Mounting port;

[0038] 3 Cooling components; 31 Cooling cavity; 32 Separating ribs; 33 Water inlet channel; 34 Water outlet channel; 35 Exposed section; 36 Shielding section; 37 Guide transition surface;

[0039] 4. Handle grip; 41. Connecting port; 42. Flanged edge; 43. Reinforcing wall; 44. Grip section; 45. Fixed section; 46. Through port; 47. Opening; 48. First space; 49. Second space;

[0040] 5 water tanks;

[0041] 6 water pumps;

[0042] 7. Sealing components. Detailed Implementation

[0043] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] As shown in Figures 1 and 5, a water-cooled pot lid assembly includes a lid body 1 and an inner lid 2 detachably installed on the lid body 1. The inner lid 2 is used to cooperate with the pot body to form a cooking cavity. The pot lid assembly is also provided with a cooling component 3 protruding from the lower surface of the inner lid 2 to extend into the cooking cavity. A cooling cavity 31 is provided inside the cooling component 3. A grip handle 4 is protruding from the lower surface of the inner lid 2. The grip handle 4 surrounds the outer periphery of the cooling component 3. A first space 48 is formed inside the grip handle 4, and a second space 49 is formed outside the grip handle 4. A communication port 41 connecting the first space 48 and the second space 49 is opened on the side wall of the grip handle 4.

[0049] In this invention, a first space 48 is formed on the inner side of the handle 4, and a second space 49 is formed on the outer side. The cooling component 3 is located in the first space 48, and a connecting port 41 is provided on the side wall of the handle 4 to connect the first space 48 and the second space 49. This accelerates the air circulation in the first space 48 and the second space 49. The cooling component 3 is located in the first space 48 and can directly cool down the air in the first space 48. The cooled air can flow into the second space 49 through the connecting port 41, and the hot air in the second space 49 can also continuously enter the first space 48 through the connecting port 41 to be cooled. This improves the flow efficiency of hot and cold air, thereby improving the contact effect and heat exchange efficiency between the cooling component 3 and the air in the cooking cavity, improving the water cooling pressure reduction efficiency, helping to achieve quick opening of the lid, reducing user waiting time, and improving the user experience.

[0050] In addition, the grip handle 4 surrounds the cooling component 3. When the coolant enters the interior of the cooling component 3, it can ensure that the grip handle 4 is cooled down first, so that the temperature of the grip handle 4 is relatively low, which makes it convenient for users to hold and prevents burns.

[0051] It should be noted that, as shown in Figures 3 and 5, the grip handle 4 is a cylindrical structure that surrounds the outer periphery of the cooling component 3 and has an opening 47 at the lower end. Therefore, the first space 48 and the second space 49 are not only connected through the connecting port 41, but also through the opening 47 at the lower end of the grip handle 4, so as to further improve the smooth flow of gas in the first space 48 and the second space 49.

[0052] Preferably, as shown in Figures 3 and 5, the lower edge of the handle 4 is provided with an outwardly folded flange 42 to facilitate the user to grip and apply force to remove the inner cover 2. The flange 42 can be a folded edge or a rolled edge as shown in Figure 5.

[0053] In a preferred embodiment, as shown in Figures 1, 3, and 5, the sidewall of the grip handle 4 is a vertical wall structure, making the grip handle 4 a straight cylindrical structure. In other embodiments, the grip handle 4 may also extend obliquely or bend, for example, the sidewall of the grip handle 4 may extend obliquely outward from top to bottom, making it funnel-shaped from top to bottom, thereby making it easier for airflow in the first space 48 to enter the second space 49 through the opening 47.

[0054] As a preferred embodiment of the present invention, as shown in Figures 1 and 5, the lower edge of the cooling member 3 is lower than the lower edge of the grip handle 4, so that the cooling member 3 has a shielding section 36 surrounded by the grip handle 4 and an exposed section 35 extending out of the first space 48.

[0055] The lower end of the cooling component 3 extends out of the first space 48, giving it an exposed section 35. This exposed section 35 is not enclosed by the handle 4, placing it in a more open space. This increases the contact area between the exposed section 35 and the hot air in the cooking cavity, allowing the hot air to exchange heat not only with the side walls of the exposed section 35 but also with its bottom. Furthermore, the airflow at the exposed section 35 is not obstructed by the handle 4, resulting in better airflow and further improving the heat exchange efficiency between the exposed section 35 and the hot air in the cooking cavity, thus enhancing the overall cooling effect of the cooling component 3.

[0056] Furthermore, when liquid rises from the cooking cavity, the exposed section 35, being lower in position, will contact the liquid before the handle 4. Because the exposed section 35 is at a lower temperature, the liquid in contact with it will quickly cool down, thus reducing the kinetic energy of the rising liquid and allowing it to cool and fall rapidly. This reduces the risk to some extent of liquid rising to the handle 4, or even flowing into the first space 48, causing contamination of the handle 4 and making it inconvenient to hold.

[0057] Of course, in other embodiments, the cooling element 3 may also be entirely located within the first space 48 and surrounded by the handle 4, which is not limited here.

[0058] Furthermore, as shown in Figure 5, the lower end of the exposed section 35 is provided with a flow guiding transition surface 37 for guiding liquid droplets from the surface of the cooling component 3.

[0059] Because the exposed section 35 is positioned lower, when the liquid in the cooking cavity boils, it is more likely to come into contact with the exposed section 35 and adhere to the cooling element 3. Furthermore, when the high-temperature air in the cooking cavity comes into contact with the lower-temperature cooling element 3, it easily liquefies into condensate and adheres to the cooling element 3. The guide transition surface 37 guides the liquid droplets from the surface of the cooling element 3 to fall off, preventing prolonged accumulation on the cooling element 3. This avoids contamination of the cooling element 3 and its impact on heat transfer efficiency, keeping the cooling element 3 in a relatively clean state.

[0060] Specifically, the flow guiding transition surface 37 can be an inclined surface, a circular arc surface, or a spherical surface, etc., and is not limited here.

[0061] Preferably, the cooling component 3 is made of metal to have better heat transfer efficiency, and the cooling component 3 is cylindrical in shape.

[0062] Preferably, as shown in FIG3, there are multiple communication ports 41 arranged along the circumference of the grip handle 4, each communication port 41 extends along the circumference of the grip handle 4, and there is a reinforcing wall 43 between two adjacent communication ports 41.

[0063] The connecting opening 41 extends circumferentially along the grip handle 4, increasing its area and thus increasing the airflow through it. This further improves the airflow efficiency within the first space 48 and the second space 49, enhancing heat exchange. However, the increased opening area reduces the structural strength of the grip handle 4. Since the primary function of the grip handle 4 is for user gripping, its low structural strength poses a risk of deformation or breakage when gripped or pulled with significant force. By providing a reinforcing wall 43 between adjacent connecting openings 41, the structural strength of the grip handle 4, particularly the area between the two openings 41, is improved while maintaining a larger opening area. This allows the grip handle 4 to withstand greater forces and enhances its structural stability.

[0064] The shape of the connecting port 41 can be a rounded rectangle, a rectangle, a circle, an ellipse, or other irregular shapes, as long as it allows airflow to pass through; there are no restrictions on this.

[0065] This invention does not limit the assembly method of the cooling component 3. In one embodiment, the cooling component 3 is fixed to the inner cover 2. The cooling component 3 can be fixed to the lower surface of the inner cover 2 or to the upper surface of the inner cover 2, and passes downward through the inner cover 2. Since the cooling component 3 is located on the inner cover 2, it can be removed together with the inner cover 2.

[0066] As a preferred embodiment, as shown in Figures 1 and 4, the cooling component 3 is disposed on the cover 1, and the inner cover 2 has an installation opening 21, through which the cooling component 3 extends into the cooking cavity.

[0067] The cooling component 3 is disposed on the cover 1. The lower end of the cooling component 3 extends into the cooking cavity through the mounting port 21 of the inner cover 2. Since the cooling component 3 is disposed on the cover 1, even if the inner cover 2 can rotate relative to the cover 1, the cover 1 will not move. This ensures that the position of the cooling component 3 and the water cooling pipe connected to the cooling component 3 will not change, thereby maintaining a stable connection and seal between the water cooling pipe and the cooling cavity 31, and improving the reliability of the pipe connection.

[0068] Furthermore, when the inner cover 2 is removed from the cover body 1, the cooling component 3 remains on the cover body 1 and its position does not change with the installation and removal of the inner cover 2. This eliminates the need for users to connect the water-cooling pipes to the cooling chamber 31 during the installation of the inner cover 2, reducing the efficiency and ease of operation of the inner cover 2 installation and removal, and improving the user experience. On the other hand, the water-cooling pipes can remain connected to the cooling chamber 31 at all times, eliminating the need for frequent connection between the water-cooling pipes and the cooling chamber 31, thus ensuring a tight seal and further reducing the risk of water-cooling liquid leakage, ensuring water-cooling efficiency.

[0069] This invention does not limit the assembly method of the grip handle 4 and the inner cover 2. In one embodiment, the grip handle 4 and the inner cover 2 are integrally formed to improve the connection strength between the grip handle 4 and the inner cover 2. In another preferred embodiment, as shown in Figures 2, 3, and 5, the grip handle 4 has a connecting part, which is fixed at the mounting port 21. The connecting part has a through-hole 46 for the cooling component 3 to pass through, and a sealing element 7 is provided between the edge of the through-hole 46 and the cooling component 3.

[0070] The mounting opening 21 of the inner cover 2 is not only used to position the inner cover 2 for installation in conjunction with the cooling component 3, but also to fix the handle 4. Thus, multiple functions are achieved with one structure, simplifying the structure of the inner cover 2 and saving costs. During assembly, the handle 4 is fixed to the edge of the mounting opening 21, and then the sealing component 7 is fixed to the edge of the opening 46. When installing the inner cover 2, the cooling component 3 passes through the opening 46 and its outer periphery abuts against the sealing component 7 to prevent steam in the cooking cavity from entering the upper part of the inner cover 2 through gaps and causing contamination inside the lid assembly.

[0071] Specifically, the handle 4 has a gripping section 44 and a fixing section 45 along the axial direction. The fixing section 45 is located above the gripping section 44, and the outer diameter of the fixing section 45 is smaller than the outer diameter of the gripping section 44. The fixing section 45 is riveted to the inner cover 2 by means of stamping and flanging 42. Of course, the two can also be fixedly connected by other means, such as screw connection, welding, etc., which are not limited here.

[0072] Preferably, as shown in Figures 1, 2, and 4, the cooling component 3 is positioned at the center of the inner cover 2, the mounting port 21 is opened at the center of the inner cover 2, and the cover 1 is also provided with a downwardly extending temperature measuring component that passes through the inner cover 2 and extends into the cooking cavity. The temperature measuring component is eccentrically positioned relative to the inner cover 2.

[0073] The cooling component 3 corresponds to the center of the inner cover 2, and the mounting opening 21 is located at the center of the inner cover 2. During installation, the inner cover 2 can be positioned using the cooling component 3 and the mounting opening 21, reducing installation difficulty and improving efficiency. Simultaneously, center positioning improves the positioning accuracy of the inner cover 2. The temperature sensor is staggered from the cooling component 3, allowing it to be relatively far from the cooling component 3, thus accurately detecting the temperature inside the cooking cavity and preventing the cooling component 3 from being too close to the temperature sensor, which could affect the accuracy of the temperature measurement.

[0074] In a preferred embodiment of the present invention, as shown in FIG1, a partition rib 32 is provided inside the cooling cavity 31. The partition rib 32 divides the cooling cavity 31 into a water inlet channel 33 and a water outlet channel 34. The water inlet channel 33 and the water outlet channel 34 are connected at the bottom of the cooling cavity 31, and the projection of the connecting port 41 toward the cooling component 3 is located at the partition rib 32.

[0075] The partition rib 32 inside the cooling chamber 31 divides it into an inlet channel 33 and an outlet channel 34. When the coolant at a lower temperature enters the inlet channel 33, it fills the channel, enabling efficient heat exchange with the air inside the pot and improving cooling performance. As the coolant in the inlet channel 33 heats up after heat exchange, it gradually flows into the outlet channel 34, where the hotter coolant gathers and flows out. The partition rib 32, located between the two channels, obstructs the flow of coolant in both channels, preventing excessive mixing of liquids with large temperature differences and minimizing heat exchange between them. This ensures efficient heat exchange between the coolant and the gas inside the cooking chamber.

[0076] The projection of the connecting port 41 is located at the partition rib 32, which allows the hot air entering the first space 48 from the connecting port 41 to exchange heat with the coolant in the water inlet channel 33 and the water outlet channel 34. On the one hand, this increases the contact area between the coolant and the hot air through the outer shell of the cooling component 3, and on the other hand, it prolongs the contact time between the cooling component 3 and the hot air, thereby improving the cooling efficiency and cooling effect.

[0077] Specifically, the cooling component 3 includes an outer shell and a cooling core extending into the outer shell. A partition rib 32 is disposed on the cooling core. The cooling core extends into the cooling cavity 31 from the upper end of the outer shell. The lower end of the partition rib 32 forms a connecting gap with the outer shell, which connects the water inlet channel 33 and the water outlet channel 34.

[0078] Furthermore, as shown in Figure 1, the partition rib 32 has a spiral segment that extends spirally along the axial direction of the cooling component 3.

[0079] The spirally arranged dividing ribs 32 not only divide the cooling chamber 31 into an inlet channel 33 and an outlet channel 34, but also restrict the inlet channel 33 and the outlet channel 34 to a spiral shape, thereby lengthening the length of the inlet channel 33 and the outlet channel 34, increasing the flow path of the coolant inside the cooling chamber 31, prolonging the residence time of the coolant in the cooling chamber 31, and improving its heat exchange effect with the high-temperature gas in the cooking chamber.

[0080] This utility model also discloses a pressure cooking appliance, including a pot body and the above-mentioned water-cooled pot lid assembly; the pot body or pot lid assembly is provided with a water tank 5, the water tank 5 has a water outlet and a water return outlet, the water outlet and the water return outlet are respectively connected to the cooling chamber 31, so that the liquid in the water tank 5 flows into the cooling chamber 31 through the water outlet, and then flows back into the water tank 5 through the water return outlet.

[0081] This invention does not limit the location of the water tank 5. In one embodiment, the water tank 5 is located on the pot lid assembly to shorten the pipe length between the water tank 5 and the water-cooling cavity, thereby improving the flow efficiency of the coolant. In another embodiment, the water tank 5 is located on the pot body, and the water-cooling pipe extends from the pot body to the pot lid assembly, thereby connecting the water tank 5 and the cooling cavity 31.

[0082] Preferably, the pressure cooking appliance also includes a water pump 6, which can be installed in either the pot body or the pot lid assembly, and pumps the coolant in the water tank 5 into the cooling chamber 31.

[0083] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0084] 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.

[0085] 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 water-cooled pot lid assembly, comprising a lid body and an inner cover detachably mounted on the lid body, the inner cover being configured to cooperate with the pot body to form a cooking cavity, characterized in that, The pot lid assembly is further provided with a cooling component that protrudes from the lower surface of the inner lid and extends into the cooking cavity, and the cooling component is provided with a cooling cavity; a grip handle protrudes from the lower surface of the inner lid, the grip handle surrounds the outer periphery of the cooling component, a first space is formed on the inner side of the grip handle, a second space is formed on the outer side of the grip handle, and a communication opening is provided on the side wall of the grip handle to connect the first space and the second space.

2. The water-cooled pot lid assembly according to claim 1, characterized in that, The lower edge of the cooling element is lower than the lower edge of the grip handle, so that the cooling element has a shielding section surrounded by the grip handle and an exposed section extending outside the first space.

3. The water-cooled pot lid assembly according to claim 2, characterized in that, The lower end of the exposed section is provided with a flow-guiding transition surface for guiding liquid droplets from the surface of the cooling component.

4. The water-cooled pot lid assembly according to claim 1, characterized in that, The communication ports are multiple and arranged circumferentially along the grip handle. Each communication port extends circumferentially along the grip handle, and a reinforcing wall is provided between two adjacent communication ports.

5. The water-cooled pot lid assembly according to claim 1, characterized in that, The cooling component is disposed on the cover, and the inner cover has an installation opening through which the cooling component extends into the cooking cavity.

6. The water-cooled pot lid assembly according to claim 5, characterized in that, The grip handle has a connecting part, which is fixed to the mounting port. The connecting part has a through-hole for the cooling component to pass through, and a sealing element is provided between the edge of the through-hole and the cooling component.

7. The water-cooled pot lid assembly according to claim 5, characterized in that, The cooling component is positioned at the center of the inner cover, the mounting opening is located at the center of the inner cover, and the cover body is also provided with a downwardly extending temperature measuring component that passes through the inner cover and extends into the cooking cavity. The temperature measuring component is eccentrically positioned relative to the inner cover.

8. The water-cooled pot lid assembly according to claim 1, characterized in that, The cooling chamber is provided with a partition rib, which divides the cooling chamber into a water inlet channel and a water outlet channel. The water inlet channel and the water outlet channel are connected at the bottom of the cooling chamber, and the projection of the connection port toward the cooling component is located at the partition rib.

9. The water-cooled pot lid assembly according to claim 8, characterized in that, The partition rib has a helical segment that extends in a helical shape along the axial direction of the cooling element.

10. A pressure cooking appliance, comprising a pot body, characterized in that, It also includes the water-cooled pot lid assembly according to any one of claims 1-9; the pot body or the pot lid assembly is provided with a water tank, the water tank has a water outlet and a water return outlet, the water outlet and the water return outlet are respectively connected to the cooling chamber, so that the liquid in the water tank flows into the cooling chamber through the water outlet and then flows back into the water tank through the water return outlet.

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