Pot cover assembly and pressure cooker

Abstract

The present application relates to the technical field of household appliances, and discloses a pot cover assembly and a pressure cooker. The pot cover assembly comprises an inner cover, an outer cover, a heat-conducting container and a control assembly. The outer cover is covered on the inner cover, and a mounting cavity is formed between the inner cover and the outer cover. The heat-conducting container is arranged in the mounting cavity and is used for containing a phase change medium. The heat-conducting container has a first position and a second position. In the first position, the heat-conducting container is in contact with the inner cover. In the second position, the heat-conducting container is arranged in a spaced manner with the inner cover. The control assembly is connected with the heat-conducting container and can be controlled to switch the heat-conducting container between the first position and the second position. When the cover needs to be opened, the heat-conducting container can be switched to the first position in direct contact with the inner cover by operating the control assembly. The phase change medium encapsulated in the heat-conducting container can rapidly exchange heat with the inner cover. The rapid reduction of the temperature of the inner cover can directly promote the condensation of high-temperature steam in the pot, so that the pressure in the pot is reduced to a safe range in a short time, and convenient and rapid opening operation of the cover is realized.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to a pot lid assembly and a pressure cooker. Background Technology

[0002] Pressure cookers utilize the physical phenomenon that the boiling point of a liquid increases under higher pressure, allowing water to reach a higher temperature without boiling, thus accelerating the cooking process. They can heat food to over 100℃, offering numerous advantages such as high cooking temperature, fast cooking speed, and excellent food texture, making them an indispensable cooking appliance in family kitchens.

[0003] However, in related technologies, after cooking, the pressure cooker has a long pressure release time due to the high pressure inside the pot, making it impossible to open the lid immediately, which causes considerable inconvenience to users. Summary of the Invention

[0004] In view of this, the present invention provides a lid assembly and a pressure cooker to solve the problem in the related art that the pressure cooker cannot be opened immediately after cooking.

[0005] In a first aspect, the present invention provides a pot lid assembly, comprising:

[0006] Inner cover;

[0007] An outer cover is placed over the inner cover, and an installation cavity is formed between the inner cover and the outer cover;

[0008] A heat-conducting container is disposed in an installation cavity for containing a phase change medium. The heat-conducting container has a first position and a second position. In the first position, the heat-conducting container is in contact with the inner cover. In the second position, the heat-conducting container is spaced apart from the inner cover.

[0009] The control component, connected to the heat-conducting container, can be manipulated to switch the heat-conducting container between a first position and a second position.

[0010] Beneficial Effects: In this embodiment of the invention, when the pressure cooker has finished cooking and the user needs to open the lid, the heat-conducting container can be switched to the first position where it directly contacts the inner lid by operating the control component. At this time, the phase change medium encapsulated inside the heat-conducting container will rapidly exchange heat with the inner lid, absorbing the heat transferred from the inner lid and undergoing a phase change. Utilizing the latent heat of phase change, it efficiently removes the heat from the inner lid. The rapid decrease in the temperature of the inner lid directly causes the high-temperature steam inside the pot to condense, reducing the pressure inside the pot to a safe range in a short time. This overcomes the bottleneck of slow pressure release in traditional pressure cookers, enabling convenient and rapid lid opening.

[0011] Once the lid-opening operation is complete, the heat-conducting container switches from the control component to a second position spaced apart from the inner lid. This design decouples the heat-conducting container from the inner lid, stopping heat absorption and creating conditions for the regeneration of the phase change medium. This allows for the reuse of the phase change medium without additional intervention, ensuring high efficiency in each cooling process and extending the lifespan of the components through orderly structural switching. This significantly improves the user experience and functional stability of the pressure cooker.

[0012] In one alternative implementation, the manipulation component includes:

[0013] The rotating ring contains a heat-conducting container. The rotating ring can be manipulated to rotate around its own axis. A guide structure is provided between the rotating ring and the heat-conducting container, which can convert the rotation of the rotating ring into the lifting and lowering motion of the heat-conducting container.

[0014] Beneficial effects: By converting the rotational motion of the rotating ring into the lifting motion of the heat-conducting container through the rotating ring and guide structure, it is possible to avoid deviation or jamming caused by uneven force, and to enable the operating components to more stably control the lifting stroke of the heat-conducting container, making the contact and separation between the heat-conducting container and the inner cover more precise and reliable.

[0015] In one alternative implementation, the guide structure includes:

[0016] The first guide section is located on the inner circumference of the rotating ring;

[0017] The second guide section is located on the outer periphery of the heat-conducting container. The first guide section and the second guide section are stacked in the vertical direction, and a guide slope is formed between the first guide section and the second guide section. The guide slope is spirally arranged along the circumference of the rotating ring.

[0018] Beneficial effect: With this configuration, when the control component is rotated, the guide ramp can convert the rotational motion of the control component into the vertical lifting motion of the heat-conducting container.

[0019] In one alternative implementation, the guide ramp is arranged in a circumferential spiral along the rotating ring.

[0020] In one alternative implementation, the manipulation component further includes:

[0021] A first limiting part is provided on the rotating ring, and a first stop surface is provided on the first limiting part. The first stop surface extends in a vertical direction. When the heat-conducting container is in the first position, the second guide part abuts against the first stop surface; and / or

[0022] The second limiting part is provided on the rotating ring. The second limiting part is provided with a second stop surface. The second stop surface extends in the vertical direction. When the heat-conducting container is in the second position, the second guide part abuts against the second stop surface.

[0023] Beneficial effect: With this configuration, when the rotating ring rotates to position the heat-conducting container in the first position, the second guide portion can abut against the first stop surface. The first stop surface itself extends in the vertical direction, so the rotation of the rotating ring cannot be converted into the lifting and lowering motion of the heat-conducting container, thereby preventing the heat-conducting container from moving further downward.

[0024] When the rotating ring rotates to position the heat-conducting container in the second position, the second guide portion can abut against the second stop surface. The second stop surface itself extends in the vertical direction, so the rotation of the rotating ring cannot be converted into the lifting and lowering motion of the heat-conducting container, thereby preventing the heat-conducting container from moving further upward.

[0025] In one alternative embodiment, the pot lid assembly further includes:

[0026] The stop is detachably connected to the outer cover and can abut against the underside of the operating components.

[0027] Beneficial effects: The stop can abut against the lower side of the control component, thereby constraining the position of the rotating ring and ensuring that the rotating ring can only rotate around its own axis, thus ensuring that the up and down movement of the heat-conducting container is precise and controllable.

[0028] In one alternative embodiment, the outer cover further includes:

[0029] Cover the body;

[0030] A screw post is provided on the lid body. The lid assembly also includes a fastener that can pass through a stop and connect to the screw post.

[0031] The limiting rib is located on the cover body and connected to the screw post. The stop part is provided with a positioning groove that can accommodate the limiting rib.

[0032] Beneficial effects: With this configuration, after the heat-conducting container and the control assembly are placed in the mounting cavity, the operator can use fasteners to pass through the stop and connect the threaded post, thereby reliably connecting the stop to the cover body. The limiting rib can be placed in the positioning groove to prevent the stop from rotating under external force, thus preventing the release of support and limitation on the control assembly.

[0033] In one alternative implementation, the manipulation component further includes:

[0034] The control handle is connected to the rotating ring, and the outer cover has a clearance opening that extends circumferentially along the outer cover. The control handle passes through the clearance opening.

[0035] Beneficial effects: With this configuration, the operator can turn the control handle to make the rotation rotate around its own axis, thereby driving the heat-conducting container to move vertically and switch between the first and second positions.

[0036] In one alternative implementation, the manipulation component further includes:

[0037] A rack is located on the outer periphery of the rotating ring;

[0038] Gears mesh with racks;

[0039] The rotation source has its power output end connected to the gear, enabling it to drive the gear to rotate.

[0040] Beneficial effects: With this setup, the rotating source can replace manual operation to drive the rotating ring, improving the automation level of the pot lid assembly and preventing dust from entering through the clearance opening.

[0041] In one alternative embodiment, the outer cover is provided with a first fixing member, and the operating component further includes:

[0042] The second fixing member is located on the operating assembly;

[0043] An elastic element is connected between the first fixed element and the second fixed element, and the operating component can switch the heat-conducting container to the second position under the action of the elastic element.

[0044] Beneficial effects: With this configuration, when the user does not apply external force to the control component, or when the rotation source stops driving the rotating ring, the elastic potential energy stored in the elastic element will be released, driving the rotating ring to rotate in the opposite direction. Then, through the inclined surface cooperation structure between the rotating ring and the heat-conducting container, the heat-conducting container is pushed to a second position spaced apart from the inner cover. Thus, after completing the cooling operation of the inner cover, the heat-conducting container is separated from the inner cover and no longer absorbs heat. At this time, the phase change medium inside will naturally release the latent heat previously absorbed to the external environment and reverse the phase change from liquid to solid.

[0045] This process requires no additional human intervention to restore the phase change medium to its initial state, preparing it for the next heat absorption and cooling cycle. This ensures that the phase change medium can be repeatedly recycled, improving the ease of operation and ensuring the continuous effectiveness of the rapid cooling function, thus significantly enhancing the practicality and economy of the overall structure.

[0046] In one alternative embodiment, the pot lid assembly further includes:

[0047] The anti-detachment structure, located on the rotating ring, abuts against the top of the heat-conducting container and prevents the heat-conducting container from detaching from the rotating ring.

[0048] In one alternative implementation, the heat-conducting container includes:

[0049] Ring-shaped support;

[0050] The outer casing, housed within a ring-shaped support, is used to contain the phase change medium;

[0051] A sealing ring is sandwiched between the annular bracket and the outer shell.

[0052] Beneficial effects: The annular support can be used to set the second guide section, the housing can be used to contain the phase change medium, and the sealing ring can improve the sealing between the housing and the annular support, thereby preventing leakage of the phase change medium.

[0053] Based on this, the separate design of the outer shell and the annular support allows the outer shell and the annular support to be made of different materials. The outer shell can be made of a thermally conductive metal material to improve the heat exchange efficiency between the heat-conducting container and the inner cover. The annular support can be made of plastic to ensure that the heat-conducting container rotates without jamming, and the guide slope is easy to process and shape.

[0054] Secondly, the present invention also provides a pressure cooker, comprising:

[0055] Pot body;

[0056] The pot lid assembly of the first aspect of the present invention is disposed on the pot body.

[0057] Beneficial Effects: The pressure cooker of the second aspect of this invention includes or uses the lid assembly of the first aspect of this invention, thus possessing its beneficial effects. Specifically, when the pressure cooker has finished cooking and the user needs to open the lid, the heat-conducting container can be switched to a first position where it directly contacts the inner lid by operating the control assembly. At this time, the phase change medium encapsulated inside the heat-conducting container rapidly exchanges heat with the inner lid, absorbing the heat transferred from the inner lid and undergoing a phase change. Utilizing the latent heat of phase change, it efficiently removes the heat from the inner lid. The rapid decrease in the temperature of the inner lid directly causes the high-temperature steam inside the pot to condense, reducing the pressure inside the pot to a safe range in a short time. This overcomes the bottleneck of slow pressure release in traditional pressure cookers, enabling convenient and rapid lid opening.

[0058] Once the lid-opening operation is complete, the heat-conducting container switches from the control component to a second position spaced apart from the inner lid. This design decouples the heat-conducting container from the inner lid, stopping heat absorption and creating conditions for the regeneration of the phase change medium. This allows for the reuse of the phase change medium without additional intervention, ensuring high efficiency in each cooling process and extending the lifespan of the components through orderly structural switching. This significantly improves the user experience and functional stability of the pressure cooker. Attached Figure Description

[0059] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0060] Figure 1 This is a side view of a pressure cooker according to an embodiment of the present invention, in which the heat-conducting container is in the second position;

[0061] Figure 2 This is a side view of a pressure cooker according to an embodiment of the present invention, in which the heat-conducting container is in the first position;

[0062] Figure 3 This is a cross-sectional view of a heat-conducting container of a pot lid assembly according to an embodiment of the present invention.

[0063] Figure 4 An exploded view of a heat-conducting container for a pot lid assembly according to an embodiment of the present invention;

[0064] Figure 5 This is a perspective view of the operating component of a pot lid assembly according to an embodiment of the present invention at one angle.

[0065] Figure 6 This is a perspective view of the operating component of a pot lid assembly according to an embodiment of the present invention from another angle.

[0066] Figure 7 This is a perspective view of the operating component and heat-conducting container of a pot lid assembly in an assembled state, according to an embodiment of the present invention.

[0067] Figure 8 This is a perspective view of the operating component and heat-conducting container of a pot lid assembly in an assembled state, according to an embodiment of the present invention.

[0068] Figure 9 This is a bottom view of a pot lid assembly according to an embodiment of the present invention;

[0069] Figure 10 This is a perspective view of a pot lid assembly according to an embodiment of the present invention;

[0070] Figure 11 This is a perspective view of an anti-detachment component of a pot lid assembly according to an embodiment of the present invention;

[0071] Figure 12 This is a perspective view of the outer cover of a pot lid assembly according to an embodiment of the present invention;

[0072] Figure 13 This is a schematic diagram of the drive assembly and heat-conducting container of another pot lid assembly according to an embodiment of the present invention in an assembled state.

[0073] Figure 14 for Figure 13 The diagram shows a 3D view of the pot lid assembly.

[0074] Explanation of reference numerals in the attached figures:

[0075] 1. Pot lid assembly;

[0076] 101. Inner cover;

[0077] 102. Outer cover; 1021. Cover body; 1022. Screw post; 1023. Limiting rib; 1024. Clearance opening;

[0078] 103. Installation cavity;

[0079] 104. Heat-conducting container; 1041. Annular support; 1042. Outer shell; 1043. Phase change medium; 1044. Sealing ring; 1045. First fixing component;

[0080] 105. Control component; 1051. Rotating ring; 1052. First limiting part; 1053. Second limiting part;

[0081] 1054. Rack; 1055. Gear; 1056. Rotation source; 1058. Second fixing element; 1059. Elastic element; 1060. Operating handle; 10601. Anti-detachment structure; 106011. Fixing buckle; 106012. Elastic buckle;

[0082] 106. Guide structure; 1061. First guide section; 1062. Second guide section; 1063. Guide slope;

[0083] 107. Stop; 1071. Positioning groove;

[0084] 2. Pot body; 201. Inner pot. Detailed Implementation

[0085] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0086] In related technologies, after cooking, pressure cookers experience prolonged pressure release time (20-30 minutes) after cooking due to the high pressure inside the pot, impacting user experience. Furthermore, the small vent holes in the pressure cooker's exhaust pipe (typically 2-4 mm in diameter) hinder heat exchange with the outside environment, and continuous venting can cause liquid to overflow or become blocked, posing a potential hazard.

[0087] The following is combined with Figures 1 to 14 The following describes embodiments of the present invention.

[0088] According to an embodiment of the present invention, in one aspect, a pot lid assembly 1 is provided, including an inner lid 101, a heat-conducting container 104, and an operating assembly 105.

[0089] The outer cover 102 covers the inner cover 101, and a mounting cavity 103 is formed between the inner cover 101 and the outer cover 102. A heat-conducting container 104 is disposed within the mounting cavity 103 to contain a phase change medium 1043. The heat-conducting container 104 has a first position and a second position. In the first position, the heat-conducting container 104 is in contact with the inner cover 101; in the second position, the heat-conducting container 104 is spaced apart from the inner cover 101. An operating component 105 is connected to the heat-conducting container 104 and can be operated to switch the heat-conducting container 104 between the first and second positions. The lid assembly 1 of this embodiment completes cooking in a pressure cooker, such as... Figure 2 As shown, when the user needs to open the lid, by operating the control component 105, the heat-conducting container 104 can be switched to the first position where it directly contacts the inner lid 101. At this time, the phase change medium 1043 encapsulated inside the heat-conducting container 104 will quickly exchange heat with the inner lid 101, undergoing a phase change by absorbing the heat transferred from the inner lid 101, and efficiently removing the heat from the inner lid 101 by utilizing the latent heat of phase change. The rapid decrease in the temperature of the inner lid 101 will directly cause the high-temperature steam inside the pot to condense, allowing the pressure inside the pot to drop to a safe range in a short time, thereby overcoming the bottleneck of waiting caused by the slow pressure release of traditional pressure cookers and realizing a convenient and fast lid opening operation.

[0090] like Figure 1 As shown, after the lid opening operation is completed, the heat-conducting container 104 is switched by the operating component 105 to a second position spaced apart from the inner lid 101. This design allows the heat-conducting container 104 to disengage from the inner lid 101, stopping heat absorption and creating conditions for the regeneration of the phase change medium 1043. The phase change medium 1043 can be reused without additional intervention, ensuring the efficiency of each cooling process and extending the service life of the components through orderly structural switching, significantly improving the user experience and functional stability of the pressure cooker.

[0091] In one embodiment, the heat-conducting container 104 is made of a heat-conducting material, such as stainless steel or aluminum.

[0092] In one embodiment, the phase change material is made of modified materials such as paraffin wax, and the phase change temperature is 90°~100°.

[0093] In one embodiment, the inner cover 101 is made of a thermally conductive material, such as steel or aluminum.

[0094] In one embodiment, such as Figure 5 and Figure 6 As shown, the manipulation component 105 includes a rotating ring 1051.

[0095] The heat-conducting container 104 is disposed inside the rotating ring 1051. The rotating ring 1051 can be manipulated to rotate around its own axis. A guide structure 106 is provided between the rotating ring 1051 and the heat-conducting container 104. The guide structure 106 can convert the rotation of the rotating ring 1051 into the lifting and lowering motion of the heat-conducting container 104.

[0096] The rotational motion of the rotating ring 1051 is converted into the lifting motion of the heat-conducting container 104 by the rotating ring 1051 and the guide structure 106. This can avoid deviation or jamming caused by uneven force, and enable the operating component 105 to control the lifting stroke of the heat-conducting container 104 more stably, making the contact and separation between the heat-conducting container 104 and the inner cover 101 more precise and reliable.

[0097] As an alternative implementation, in an embodiment not shown in the drawings, the manipulation component 105 can be manipulated to move up and down relative to the lid assembly 1, thereby carrying the heat-conducting container 104 up and down.

[0098] In one embodiment, in order to ensure that the heat-conducting container 104 does not rotate when the operating component 105 rotates, an anti-rotation structure is provided between the heat-conducting container 104 and the inner cover 101 and / or the outer cover 102.

[0099] In an optional embodiment, an anti-rotation structure is provided between the heat-conducting container 104 and the outer cover 102. The anti-rotation structure includes a guide post provided on one of the heat-conducting container 104 and the outer cover 102, and a guide hole provided on the other of the heat-conducting container 104 and the outer cover 102. The guide post can be inserted into the guide hole, and both the guide post and the guide hole extend in a vertical direction.

[0100] In one embodiment, the guide structure 106 includes a first guide portion 1061 and a second guide portion 1062.

[0101] The first guide portion 1061 is disposed on the inner circumference of the rotating ring 1051. The second guide portion 1062 is disposed on the outer circumference of the heat-conducting container 104. The first guide portion 1061 and the second guide portion 1062 are stacked vertically, and a guide slope 1063 is formed between the first guide portion 1061 and the second guide portion 1062. The guide slope 1063 is spirally arranged circumferentially along the rotating ring 1051.

[0102] With this configuration, when the control component 105 is rotated, the guide ramp 1063 can convert the rotational motion of the control component 105 into the vertical lifting motion of the heat-conducting container 104.

[0103] As an alternative implementation, in an embodiment not shown in the drawings, the heat-conducting container 104 is connected to the rotating ring 1051 via a guide rail arranged in a circumferential spiral.

[0104] In one embodiment, the manipulation component 105 further includes a first limiting portion 1052 and a second limiting portion 1053.

[0105] The first limiting part 1052 is provided on the rotating ring 1051. The first limiting part 1052 is provided with a first stop surface. The first stop surface extends in the vertical direction. When the heat-conducting container 104 is in the first position, the second guide part 1062 abuts against the first stop surface.

[0106] With this configuration, when the rotating ring 1051 rotates to position the heat-conducting container 104 in the first position, the second guide portion 1062 can abut against the first stop surface. The first stop surface itself extends in the vertical direction, so the rotation of the rotating ring 1051 cannot be converted into the lifting and lowering motion of the heat-conducting container 104, thereby preventing the heat-conducting container 104 from moving further downward.

[0107] In one embodiment, the first limiting part 1052 and the first guiding part 1061 are spaced apart, and the gap between the first limiting part 1052 and the first guiding part 1061 is smaller than the circumferential dimension of the second guiding part 1062, which can prevent the second guiding part 1062 from coming out of the gap between the first limiting part 1052 and the first guiding part 1061.

[0108] The second limiting part 1053 is provided on the rotating ring 1051. The second limiting part 1053 is provided with a second stop surface. The second stop surface extends in the vertical direction. When the heat-conducting container 104 is in the second position, the second guide part 1062 abuts against the second stop surface.

[0109] When the rotating ring 1051 rotates to position the heat-conducting container 104 in the second position, the second guide portion 1062 can abut against the second stop surface. The second stop surface itself extends in the vertical direction, so the rotation of the rotating ring 1051 cannot be converted into the lifting and lowering motion of the heat-conducting container 104, thereby preventing the heat-conducting container 104 from moving further upward.

[0110] In one embodiment, such as Figure 5 As shown, the second limiting part 1053 is connected to the upper side of the first guide part 1061.

[0111] In one embodiment, the lid assembly 1 further includes a stop 107. The stop 107 is detachably connected to the outer cover 102 and is capable of abutting against the underside of the operating assembly 105.

[0112] The stop 107 can abut against the lower side of the operating component 105, thereby constraining the position of the rotating ring 1051 and ensuring that the rotating ring 1051 can only rotate around its own axis, thus ensuring that the up and down movement of the heat-conducting container 104 is precise and controllable.

[0113] It should be noted that, in this embodiment of the application, the number of stop members 107 is not limited, as long as they can constrain the position of the rotating ring 1051.

[0114] By way of example, in an optional embodiment, there are three stops 107, which are evenly distributed along the circumference of the outer cover 102.

[0115] In embodiments not shown in the accompanying drawings, the number of stop members 107 may also be four, five, or six, etc.

[0116] In one embodiment, the outer cover 102 further includes a cover body 1021, a screw post 1022, and a limiting rib 1023.

[0117] The screw post 1022 is located on the lid body 1021. The lid assembly 1 also includes a fastener that can pass through the stop member 107 and connect to the screw post 1022. The limiting rib 1023 is located on the lid body 1021 and connected to the screw post 1022. The stop member 107 is provided with a positioning groove 1071, which can accommodate the limiting rib 1023.

[0118] With this configuration, after the heat-conducting container 104 and the operating component 105 are placed in the mounting cavity 103, the operator can use fasteners to pass through the stop 107 and connect the threaded post, thereby reliably connecting the stop 107 to the cover body 1021. The limiting rib 1023 can be placed in the positioning groove 1071, thereby preventing the stop 107 from rotating under the action of external force, which would cause the support and limiting of the operating component 105 to be released.

[0119] In one embodiment, the fastener may be a screw.

[0120] As an alternative implementation, in an embodiment not shown in the accompanying drawings, the connection between the stop 107 and the cover body 1021 can also be selected as snap-fit, riveting, or bonding.

[0121] In one embodiment, the control assembly 105 further includes a control handle 1060. The control handle 1060 is connected to the rotating ring 1051, and the outer cover 102 is provided with a clearance opening 1024, which extends circumferentially along the outer cover 102, through which the control handle 1060 passes.

[0122] With this configuration, the operator can turn the control handle 1060 to make the rotating ring 1051 rotate around its own axis, thereby driving the heat-conducting container 104 to move in the vertical direction and switch between the first position and the second position.

[0123] In one embodiment, the manipulation component 105 further includes a rack 1054, a gear 1055, and a rotation source 1056.

[0124] The rack 1054 is located on the outer periphery of the rotating ring 1051. The gear 1055 meshes with the rack 1054. The power output end of the rotation source 1056 is connected to the gear 1055, which can drive the gear 1055 to rotate.

[0125] With this configuration, the rotation source 1056 can drive the rotating ring to rotate instead of manually, improving the automation level of the pot lid assembly 1 and preventing dust from entering through the clearance opening 1024.

[0126] The rotation source 1056 can be selected as a device capable of outputting rotation, such as an electric motor, an engine, a hydraulic motor, or a combination of one of them and a reducer.

[0127] In one embodiment, the outer cover 102 is provided with a first fixing member 1045, and the operating component 105 further includes a second fixing member 1058 and an elastic member 1059.

[0128] The second fixing member 1058 is disposed on the operating assembly 105. The elastic member 1059 is connected between the first fixing member 1045 and the second fixing member 1058, and the operating assembly 105 can switch the heat-conducting container 104 to the second position under the action of the elastic member 1059.

[0129] With this configuration, when the user does not apply external force to the control component 105, or when the rotation source 1056 stops driving the rotating ring 1051, the elastic potential energy stored in the elastic element 1059 will be released, driving the rotating ring 1051 to rotate in the opposite direction. Then, through the inclined surface cooperation structure between the rotating ring 1051 and the heat-conducting container 104, the heat-conducting container 104 is pushed to a second position spaced apart from the inner cover 101. Thus, after completing the cooling operation of the inner cover 101, the heat-conducting container 104 is separated from the inner cover 101 and no longer absorbs heat. At this time, the phase change medium 1043 inside will naturally release the latent heat previously absorbed to the external environment and reverse the phase change from liquid to solid.

[0130] This process requires no additional manual intervention to restore the phase change medium 1043 to its initial state, preparing it for the next heat absorption and cooling cycle. This ensures that the phase change medium 1043 can be repeatedly recycled, improving the ease of operation and ensuring the continuous effectiveness of the rapid cooling function, thus significantly enhancing the practicality and economy of the overall structure.

[0131] In one embodiment, the elastic element 1059 is a torsion spring, which is sleeved on the outer periphery of the rotating ring 1051, and its two ends are respectively limited to the first fixing element 1045 and the second fixing element 1058.

[0132] As a possible implementation, in an embodiment not shown in the accompanying drawings, the elastic element 1059 is a tension spring.

[0133] As a possible implementation, in another embodiment not shown in the accompanying drawings, the elastic element 1059 is an elastic band.

[0134] In one embodiment, the lid assembly 1 further includes an anti-detachment structure 10601. The anti-detachment structure 10601 is disposed on the rotating ring 1051, and is able to abut against the top of the heat-conducting container 104 and prevent the heat-conducting container 104 from detaching from the rotating ring 1051.

[0135] In one embodiment, the anti-detachment structure 10601 includes a fixing buckle 106011 and an elastic buckle 106012.

[0136] The fixing buckle 106011 is located on the upper side of the rotating ring 1051. During the process of installing the heat-conducting container 104 on the rotating ring 1051, the operator can first tilt the heat-conducting container 104 into the rotating ring 1051 from the upper side, so that the fixing buckle 106011 covers the upper side of the rotating ring 1051.

[0137] The elastic buckle 106012 includes a guide surface and an abutment surface arranged sequentially from top to bottom. From top to bottom, the guide surface is inclined in a direction close to the axis of the rotating ring 1051. With this arrangement, when the heat-conducting container 104 is inserted into the rotating ring 1051, the elastic buckle 106012 can be forced to deform in a direction away from the axis of the rotating ring 1051, thereby allowing the heat-conducting container 104 to be placed into the rotating ring 1051. After the heat-conducting container 104 is inserted into the rotating ring 1051, the abutment surface can be located on the upper side of the heat-conducting container 104, thereby pre-positioning the heat-conducting container 104.

[0138] In one embodiment, the heat-conducting container 104 includes an annular support 1041, a housing 1042, and a sealing ring 1044.

[0139] The outer shell 1042 is disposed within the annular support 1041 to accommodate the phase change medium 1043. The sealing ring 1044 is sandwiched between the annular support 1041 and the outer shell 1042.

[0140] The annular bracket 1041 can be used to set the second guide portion 1062, the housing 1042 can be used to contain the phase change medium 1043, and the sealing ring 1044 can improve the sealing between the housing 1042 and the annular bracket 1041, thereby preventing leakage of the phase change medium 1043.

[0141] Based on this, the outer shell 1042 and the annular support 1041 are set separately, which allows the outer shell 1042 and the annular support 1041 to be made of different materials. The outer shell 1042 can be made of a thermally conductive metal material to improve the heat exchange efficiency between the heat-conducting container 104 and the inner cover 101. The annular support 1041 can be made of plastic to ensure that the heat-conducting container 104 rotates without jamming, and the guide slope 1063 is easy to process and form.

[0142] In an optional embodiment, the housing 1042 is provided with screw holes, and the annular bracket 1041 is connected to the housing 1042 by screws.

[0143] As an alternative implementation, in an embodiment not shown in the accompanying drawings, the connection between the housing 1042 and the annular bracket 1041 may also be riveting or snap-fitting.

[0144] According to an embodiment of the present invention, another aspect provides a pressure cooker, including a pot body 2 and a pot lid assembly 1.

[0145] Among them, the pot lid assembly 1 is the pot lid assembly 1 of the first aspect of the present invention, which is covered on the pot body 2.

[0146] The pot body 2 includes an inner pot 201, and the inner lid 101 of the pot lid assembly 1 can be sealed on the inner pot 201 to form a closed cooking cavity.

[0147] The pressure cooker of the second aspect of the present invention includes or uses the lid assembly 1 of the first aspect of the present invention, and therefore has the following beneficial effects: when the pressure cooker has finished cooking and the user needs to open the lid, the heat-conducting container 104 can be switched to a first position where it is in direct contact with the inner lid 101 by operating the control component 105. At this time, the phase change medium 1043 encapsulated in the heat-conducting container 104 will quickly exchange heat with the inner lid 101, undergoing a phase change by absorbing the heat transferred from the inner lid 101, and efficiently removing the heat from the inner lid 101 by utilizing the latent heat of phase change. The rapid decrease in the temperature of the inner lid 101 will directly cause the high-temperature steam inside the pot to condense, allowing the pressure inside the pot to drop to a safe range in a short time, thereby overcoming the bottleneck of waiting caused by the slow pressure release of traditional pressure cookers and realizing a convenient and quick lid opening operation.

[0148] Once the lid-opening operation is complete, the heat-conducting container 104 is switched by the operating component to a second position spaced apart from the inner lid 101. This design allows the heat-conducting container 104 to disengage from the inner lid 101, ceasing heat absorption and creating conditions for the regeneration of the phase change medium 1043. The phase change medium 1043 can be reused without additional intervention, ensuring high efficiency in each cooling process and extending the component's lifespan through orderly structural switching, significantly improving the pressure cooker's user experience and functional stability.

[0149] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope of protection claimed by the present invention.

Claims

1. A pot lid assembly, characterized in that, include: Inner cover (101); An outer cover (102) is fitted over the inner cover (101), and an installation cavity (103) is formed between the inner cover (101) and the outer cover (102). A heat-conducting container (104) is disposed in the mounting cavity (103) for containing a phase change medium (1043). The heat-conducting container (104) has a first position and a second position. In the first position, the heat-conducting container (104) is in contact with the inner cover (101). In the second position, the heat-conducting container (104) and the inner cover (101) are spaced apart. An actuation component (105), connected to the heat-conducting container (104), is operable to switch the heat-conducting container (104) between the first position and the second position; The manipulation component (105) includes: A rotating ring (1051) is provided inside the heat-conducting container (104). The rotating ring (1051) can be manipulated to rotate around its own axis. A guide structure (106) is provided between the rotating ring (1051) and the heat-conducting container (104). The guide structure (106) can convert the rotation of the rotating ring (1051) into the lifting and lowering motion of the heat-conducting container (104). The guide structure (106) includes: The first guide portion (1061) is provided on the inner circumference of the rotating ring (1051); The second guide portion (1062) is provided on the outer periphery of the heat-conducting container (104). The first guide portion (1061) and the second guide portion (1062) are stacked in the vertical direction, and a guide slope (1063) is formed between the first guide portion (1061) and the second guide portion (1062).

2. The pot lid assembly according to claim 1, characterized in that, The guide slope (1063) is arranged in a circumferential spiral along the rotating ring (1051).

3. The pot lid assembly according to claim 1, characterized in that, The manipulation component (105) further includes: A first limiting part (1052) is provided on the rotating ring (1051). The first limiting part (1052) has a first stop surface that extends vertically. When the heat-conducting container (104) is in the first position, the second guide part (1062) abuts against the first stop surface; and / or, The second limiting part (1053) is provided on the rotating ring (1051). The second limiting part (1053) is provided with a second stop surface. The second stop surface extends in the vertical direction. When the heat-conducting container (104) is in the second position, the second guide part (1062) abuts against the second stop surface.

4. The pot lid assembly according to any one of claims 1 to 3, characterized in that, Also includes: The stop (107) is detachably connected to the outer cover (102) and can abut against the underside of the operating component (105).

5. The pot lid assembly according to claim 4, characterized in that, The outer cover (102) also includes: Cover body (1021); A screw post (1022) is provided on the lid body (1021). The lid assembly (1) also includes a fastener that can pass through the stop (107) and connect to the screw post (1022). A limiting rib (1023) is provided on the cover body (1021) and connected to the screw post (1022). The stop member (107) is provided with a positioning groove (1071), which can accommodate the limiting rib (1023).

6. The pot lid assembly according to any one of claims 1 to 3, characterized in that, The manipulation component (105) further includes: A control handle (1060) is connected to the rotating ring (1051). The outer cover (102) is provided with a clearance opening (1024). The clearance opening (1024) extends circumferentially along the outer cover (102), and the control handle (1060) passes through the clearance opening (1024).

7. The pot lid assembly according to any one of claims 1 to 3, characterized in that, The manipulation component (105) further includes: A rack (1054) is disposed on the outer periphery of the rotating ring (1051); The gear (1055) meshes with the rack (1054); The rotating source (1056) has its power output end connected to the gear (1055) and can drive the gear (1055) to rotate.

8. The pot lid assembly according to any one of claims 1 to 3, characterized in that, The outer cover (102) is provided with a first fixing member (1045), and the operating assembly (105) further includes: The second fastener (1058) is provided on the operating assembly (105). An elastic element (1059) is connected between the first fixing element (1045) and the second fixing element (1058), and the operating component (105) is able to switch the heat-conducting container (104) to a second position under the action of the elastic element (1059).

9. The pot lid assembly according to any one of claims 1 to 3, characterized in that, Also includes: An anti-detachment structure (10601) is provided on the rotating ring (1051) and can abut against the top of the heat-conducting container (104) and prevent the heat-conducting container (104) from detaching from the rotating ring (1051).

10. The pot lid assembly according to any one of claims 1 to 3, characterized in that, The heat-conducting container (104) includes: Ring-shaped support (1041). The outer shell (1042) is disposed inside the annular support (1041) and is used to accommodate the phase change medium (1043). A sealing ring (1044) is sandwiched between the annular bracket (1041) and the outer shell (1042).

11. A pressure cooker, characterized in that, include: Pot body (2); The lid assembly (1) as described in any one of claims 1 to 10 is disposed on the pot body (2).

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