Upper cover assembly and cooking utensil

Abstract

The utility model discloses an upper cover assembly and a cooking utensil, and relates to the technical field of household appliances, the upper cover assembly comprises a cover body and a cooling device, the cover body is provided with a cooling channel and a steam channel, the cooling channel is communicated with the steam channel, the cooling device is arranged on the cover body, the cooling device is provided with a cooling air outlet, and the cooling air outlet is communicated with the cooling channel. On the basis that condensation and overflow prevention are achieved at the same time, the space structure layout of the upper cover assembly is simplified, use of electronic devices is reduced, and therefore loads and cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a top cover assembly and a cooking utensil. Background Technology

[0002] During the cooking process, steam carries away the aroma molecules of the rice, thus reducing its fragrance. To address this issue, a condensation device is installed to condense the steam containing rice aroma molecules during the boiling stage and allow the condensate to flow back into the cooking cavity, thereby enhancing the aroma of the rice. Additionally, the rice cooker is equipped with a bubble-breaking and anti-overflow device, which blows airflow into the steam valve during boiling to prevent overflow.

[0003] However, installing both a condenser and an anti-bubble overflow device on a rice cooker increases the number of related electronic components, complicates the overall structure, and affects the spatial layout of the lid, thereby increasing costs and overloading the rice cooker. Utility Model Content

[0004] The main purpose of this invention is to propose a top cover assembly and cooking appliance that, while simultaneously achieving condensation and spill prevention, simplifies the spatial structure layout of the top cover assembly and reduces the use of electronic components, thereby reducing load and cost.

[0005] To achieve the above objectives, this utility model proposes a top cover assembly, the top cover assembly comprising:

[0006] The cover body, wherein the cover body is provided with a cooling channel and a steam channel, the cooling channel being connected to the steam channel; and

[0007] A cooling device is provided on the cover, and the cooling device is provided with a cooling air outlet, which is connected to the cooling channel.

[0008] In one embodiment, the cover is further provided with a drainage channel that connects the cooling channel and the steam channel.

[0009] In one embodiment, the cover includes an inner cover and a seat plate, the inner cover and the seat plate enclosing to form the cooling channel;

[0010] The drainage channel is located on the side of the inner cover facing away from the seat plate.

[0011] In one embodiment, the air intake channel is provided with an air intake inlet and an air intake outlet, the air intake inlet being located in the inner cover and connected to the cooling channel;

[0012] The air outlet is located on the side wall of the steam channel and is connected to the steam channel.

[0013] In one embodiment, the steam passage is located at the edge of the cooling passage;

[0014] At least a portion of the drainage channel is located between the cooling channel and the steam channel.

[0015] In one embodiment, the top cover assembly further includes a one-way valve disposed in the drainage channel;

[0016] The one-way valve is configured to guide the airflow into the steam passage in one direction.

[0017] In one embodiment, the cover assembly further includes a solenoid valve;

[0018] The solenoid valve includes a drive component and a seal component. The drive component is located on the cover body, and the seal component is located at the output end of the drive component. The seal component is located in the drainage channel.

[0019] In one embodiment, the seal includes a main body section and an extension section;

[0020] The main body segment is connected to the output end of the drive unit, and the extension segment is located at the periphery of the main body segment and extends away from the main body segment.

[0021] In one embodiment, the cover is further provided with an air guide channel, which connects the cooling air outlet and the cooling channel.

[0022] In one embodiment, a portion of the air guide channel is located within the cooling channel, and the extension direction of the air guide channel within the cooling channel is set at an angle to the extension direction of the cover.

[0023] In one embodiment, the cooling channel is provided with a cavity air inlet and a cavity air outlet;

[0024] The upper cover assembly also includes multiple drainage sections, which are disposed on the inner wall of the cooling channel. One end of each drainage section extends from the air inlet of the cavity to the air outlet of the cavity.

[0025] In one embodiment, the cooling channel is provided with a plurality of cavity air outlets, and each cavity air outlet corresponds to at least one of the drainage sections;

[0026] And / or, the upper cover assembly includes a plurality of the drainage portions, one end of which extends from the air inlet of the cavity toward the air outlet of the cavity.

[0027] In one embodiment, the upper cover assembly further includes a heating element disposed on the cover body and located in the cooling channel;

[0028] The heating element and the drainage part enclose each other to form a drainage channel, which extends from the air inlet to the air outlet of the cavity.

[0029] In one embodiment, the drainage portion and the heating element are disposed on the same cavity wall of the cooling channel, and the drainage portion and the heating element surround the drainage channel in the extending direction of the cavity wall of the cooling channel to form the drainage channel;

[0030] And / or, the drainage portion and the heating element are disposed on different cavity walls of the cooling channel, the drainage portion protrudes toward the heating element, and the drainage portion and the heating element enclose each other in opposite directions to form the drainage channel;

[0031] And / or, the height of the drainage portion protruding from the cavity wall of the cooling channel is greater than or equal to 2 mm;

[0032] And / or, the distance between the drainage portion and the cavity wall of the opposite cooling channel is greater than or equal to 1 mm and less than or equal to 20 mm.

[0033] This utility model also proposes a cooking utensil, the cooking utensil comprising:

[0034] The pot body; and

[0035] As described above, the top cover assembly is connected to the pot body.

[0036] The upper cover assembly of this utility model includes a cover body and a cooling device. The cover body has a cooling channel and a steam channel, with the cooling channel connected to the steam channel. The cooling device is located on the cover body and has a cooling air outlet connected to the cooling channel. The cooling channel and the steam channel of this upper cover assembly are directly connected. The cooling fluid flowing out of the cooling device first enters the cooling channel to cool the cooking cavity through the cover body, condensing the water vapor containing aroma molecules to form condensate containing aroma molecules that flows back into the rice cooker. Then, the cooling fluid generated by the cooling device further enters the steam channel to break up the boiling foam in the steam channel through a lower temperature airflow, preventing overflow. Thus, a single cooling device can simultaneously achieve the dual functions of condensation and foam breaking to prevent overflow, effectively simplifying the spatial structure layout of the upper cover assembly, reducing the use of electronic components, and reducing the power consumption of the cooking appliance. This invention addresses the issues of load and manufacturing costs. Furthermore, in existing systems, the airflow entering the cooling channel, after exchanging heat with the cover to cool it and collect condensate, experiences a temperature increase. To ensure user safety, the high-temperature airflow cannot be directly discharged from the cover, causing it to remain inside and raising the overall temperature of the cover. This not only affects electronic components such as cooling devices in the cover assembly but also reduces the cooling and condensation effect on the cover. This application connects the cooling channel and the steam channel, allowing the airflow in the cooling channel to be quickly discharged through the steam channel after heat exchange with the cover. This reduces airflow accumulation, improves the cooling and condensation effect on the cover, and controls the temperature rise of the cover, minimizing the impact of high-temperature gas on internal electronic components such as cooling devices. It also reduces the number of high-temperature heat sources to be discharged, effectively protecting user safety. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0038] Figure 1 This is a cross-sectional schematic diagram of the upper cover assembly in one embodiment of the present utility model;

[0039] Figure 2 This is a cross-sectional schematic diagram of the upper cover assembly in another embodiment of the present invention;

[0040] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0041] Figure 4This is a cross-sectional schematic diagram of the upper cover assembly in another embodiment of the present utility model;

[0042] Figure 5 This is a cross-sectional schematic diagram of the upper cover assembly from another perspective in one embodiment of the present invention;

[0043] Figure 6 This is a cross-sectional schematic diagram of the upper cover assembly from another perspective in one embodiment of the present utility model;

[0044] Figure 7 This is a cross-sectional schematic diagram of the upper cover assembly from another perspective in one embodiment of the present invention;

[0045] Figure 8 This is a structural schematic diagram of the upper cover assembly from another perspective in one embodiment of the present invention;

[0046] Figure 9 This is a cross-sectional schematic diagram of the upper cover assembly in another embodiment of the present invention;

[0047] Figure 10 for Figure 9 A magnified view of a section at point B in the middle;

[0048] Figure 11 This is a cross-sectional schematic diagram of a cooking utensil in one embodiment of the present invention.

[0049] Explanation of icon numbers:

[0050] 100. Top cover assembly; 1. Cover body; 11. Inner cover; 12. Seat plate; 13. Cooling channel; 131. Cavity air inlet; 132. Cavity air outlet; 14. Steam channel; 15. Drainage channel; 151. Drainage air inlet; 152. Drainage air outlet; 16. Air guide channel; 17. Air guide plate; 18. Drainage section; 2. Cooling device; 21. Cooling air outlet; 3. Solenoid valve; 31. Drive component; 32. Sealing component; 321. Main body section; 322. Extension section; 4. Steam valve; 5. One-way valve; 6. Heating component; 61. Drainage channel; 700. Cooking appliance; 701. Pot body; 702. Cooking cavity.

[0051] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0052] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0053] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0054] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0055] Please refer to Figures 1 to 11 As shown, this utility model proposes a cover assembly 100, which includes a cover body 1 and a cooling device 2. The cover body 1 is provided with a cooling channel 13 and a steam channel 14. The cooling channel 13 is connected to the steam channel 14. The cooling device 2 is provided on the cover body 1 and is provided with a cooling air outlet 21, which is connected to the cooling channel 13.

[0056] In this embodiment, the top cover assembly 100 is applied to the cooking appliance 700, which includes, but is not limited to, rice cookers, pressure rice cookers, electric soup pots, electric medicine pots, and electric clay pots. The top cover assembly 100 is used to cover the main body of the cooking appliance 700 (such as the pot body 701). The top cover assembly 100 includes a cover 1, a cooling device 2, and a control valve. The cover 1 is the main supporting component of the top cover assembly 100. The cover 1 can be a shell structure or a plate structure to install the cooling device 2 and the control valve.

[0057] In this embodiment, as Figure 7As shown, the cooling device 2 is a device that generates cold source fluid, such as a fan, air pump, or water pump that can generate airflow. The cover 1 is provided with a cooling channel 13, and the cooling device 2 is provided with a cooling air outlet 21. The cooling air outlet 21 can be directly connected to the cooling channel 13, allowing the cold source fluid generated by the cooling device 2 to enter the cooling channel 13. Specifically, the cooling channel 13 is located in the cover 1 and can be arranged in a tubular or cavity-like manner. In this case, the cooling channel 13, which extends in a tubular shape, may have only one air inlet and one air outlet, arranged in a meandering manner on the entire plane of the side of the cover 1 that contacts the cooking cavity 702 of the cooking appliance 700, or it may have multiple air inlets and multiple air outlets, arranged in parallel on the entire plane of the side of the cover 1 that contacts the cooking cavity 702 of the cooking appliance 700; the cooling channel 13 arranged in a cavity is a complete large cavity, arranged on the entire plane of the side of the cover 1 that contacts the cooking cavity 702 of the cooking appliance 700.

[0058] It is understood that the cover assembly 100 and the cooking appliance 700 having the cover assembly 100 are in a cooling state and a bubble-breaking state. During the cooking process, the steam will carry away the aroma molecules of the rice, thereby reducing the aroma of the rice. By setting the cooling device 2 and the cooling channel 13, during the boiling stage, the cooling device 2 blows condensing fluid into the cooling channel 13 to condense the steam containing the aroma molecules of rice in the cooking cavity 702 through the cover body 1, and the steam is condensed on the cover body 1 and flows back into the cooking cavity 702 to enhance the aroma of the rice. At this time, the cover assembly 100 and the cooking appliance 700 having the cover assembly 100 are in a cooling state.

[0059] In this embodiment, as Figures 1 to 4 As shown, the upper cover assembly 100 is also provided with a steam channel 14, and a steam valve 4 is provided on the steam channel 14. The steam channel 14 is connected to the cooking cavity 702 of the pot body 701. During the heating and boiling stage of cooking rice, the boiling foam with rice paste is easy to overflow from the steam channel 14. On the one hand, the steam valve 4 can be set to prevent the foam from overflowing. On the other hand, a cooling device 2 can be set. By connecting the cooling air outlet 21 of the cooling device 2 to the steam channel 14, cold air is blown into the steam channel 14. The foam will break after being cooled, so as to realize the foam-breaking and overflow prevention of the cooking appliance 700. At this time, the upper cover assembly 100 and the cooking appliance 700 with the upper cover assembly 100 are in the foam-breaking state.

[0060] It is understood that the lid 1 of the top cover assembly 100 is provided with a cooling channel 13 and a steam channel 14, and the cooling channel 13 and the steam channel 14 are connected. This allows the cooling fluid generated by the cooling device 2 to first enter the cooling channel 13 to cool the lid 1, thereby cooling the cooking cavity 702. This causes the water vapor containing aroma molecules to form condensate and flow back into the rice cooker. Then, it further enters the steam channel 14 to break up the boiling foam in the steam channel 14 with the lower temperature fluid, thereby reducing foam overflow. In other words, the same cooling device 2 can achieve the dual functions of condensing and recovering aroma substances and breaking up foam to prevent overflow. This reduces the use of the cooling device 2 and related electronic components in the top cover assembly 100, reduces the power load of the top cover assembly 100 and the cooking appliance 700 with the top cover assembly, and also reduces the arrangement of related channels, effectively simplifying the spatial layout of the top cover assembly 100 and improving the structural compactness.

[0061] The cover assembly 100 of this utility model includes a cover body 1 and a cooling device 2. The cover body 1 is provided with a cooling channel 13 and a steam channel 14, with the cooling channel 13 connected to the steam channel 14. The cooling device 2 is located on the cover body 1 and is provided with a cooling air outlet 21, which is connected to the cooling channel 13. The cooling channel 13 and the steam channel 14 of the cover assembly 100 are directly connected. The cooling fluid flowing out from the cooling device 2 first enters the cooling channel 13 to cool the cooking cavity 702 through the cover body 1, thereby condensing the water vapor containing aroma molecules to form condensate containing aroma molecules that flows back into the rice cooker. Then, the cooling fluid generated by the cooling device 2 further enters the steam channel 14 to break up the boiling foam in the steam channel 14 through the lower temperature airflow, preventing overflow. Thus, the dual functions of condensation and foam breaking and overflow prevention can be achieved simultaneously by a single cooling device 2, effectively simplifying the spatial structure layout of the cover assembly 100 and reducing the use of electronic components. This invention reduces the electrical load and manufacturing cost of the cooking appliance 700. Currently, the airflow entering the cooling channel 13, after exchanging heat with the lid 1 to cool it and collect condensate, experiences a temperature increase. To ensure user safety, the high-temperature airflow cannot be directly discharged from the lid 1, causing it to remain inside and raising the overall temperature of the lid 1. This not only affects electronic components such as the cooling device 2 in the lid assembly 100 but also reduces the cooling and condensation effect on the lid 1. This application connects the cooling channel 13 and the steam channel 14, allowing the airflow in the cooling channel 13 to be quickly discharged through the steam channel 14 after heat exchange with the lid 1. This reduces airflow accumulation, improves the cooling and condensation effect on the lid 1, and controls the temperature rise of the lid 1. This reduces the impact of high-temperature gas on internal electronic components such as the cooling device 2 and also reduces the number of high-temperature heat sources, effectively protecting user safety.

[0062] In one embodiment, such as Figures 1 to 6 As shown, the cover 1 is also provided with a drainage channel 15, which connects the cooling channel 13 and the steam channel 14.

[0063] It is understood that the cover 1 is also provided with a flow channel 15 that connects the cooling channel 13 and the steam channel 14. The air inlet of the flow channel 15 is connected to the cooling channel 13, and the air outlet of the flow channel 15 is connected to the steam channel 14, so that the cooling fluid generated by the cooling device 2 can flow into the steam channel 14 through the flow channel 15 after flowing out of the cooling channel 13. The flow channel 15 can be a channel structure or a cavity structure. Any space that can connect the cooling channel 13 and the steam channel 14 is within the protection scope of this embodiment.

[0064] It is understandable that in the cover assembly 100, the positions of the cooling channel 13 and the steam channel 14 are independent of each other. For example, in order to improve the cooling and condensation capacity of the cover 1, the cooling channel 13 will cover as much of the cover 1 area as possible, while the steam channel 14 needs to ensure that the hot steam in the cooking cavity 702 can escape. Therefore, the steam channel 14 is usually located at the periphery of the cover 1, or at the periphery of the cooling channel 13. Based on this, the cover 1 is provided with a flow channel 15 to connect the cooling channel 13 and the steam channel 14 in different positions, so that the cooling fluid flowing out of the cooling channel 13 can enter the steam channel 14 through the flow channel 15. This not only ensures the rational use of the cooling fluid, but also improves the overall structural compactness of the cover 1 and the cover assembly 100 with the cover 1.

[0065] In one embodiment, such as Figures 1 to 11 As shown, the cover 1 includes an inner cover 11 and a seat plate 12, which together form a cooling channel 13; a drainage channel 15 is provided on the side of the inner cover 11 facing away from the seat plate 12.

[0066] In this embodiment, the lid 1 is disposed on the pot body 701 of the cooking appliance 700. The lid 1 and the pot body 701 are both the main structure of the cooking appliance 700. The lid 1 includes an inner lid 11 and a seat plate 12. The seat plate 12 is disposed on the pot body 701 of the cooking appliance 700. When the lid 1 covers the pot body 701, the seat plate 12 and the pot body 701 of the cooking appliance 700 form a cooking cavity 702 for cooking ingredients. When the rice boils, the cooling device 2 blows a cooling airflow into the cooling channel 13 to cool the seat plate 12. The seat plate 12 also cools the steam containing aromatic substances in the cooking cavity 702, causing the steam to condense and flow back to the cooking cavity 702 to continue to participate in the cooking of rice, thereby solving the problem of loss of aromatic substances caused by violent boiling.

[0067] Furthermore, the inner cover 11 is connected to the side of the seat plate 12 facing away from the pot body 701, and the inner cover 11 and the seat plate 12 are spaced apart to form a cooling channel 13 in the middle space. At the same time, the drainage channel 15 is provided on the side of the inner cover 11 facing away from the seat plate 12, and the cooling device 2 is provided on the side of the inner cover 11 facing away from the seat plate 12. The cooling airflow is blown into the cooling channel 13 from the side of the inner cover 11 facing away from the seat plate 12 to cool the seat plate 12.

[0068] It is understandable that, in order to improve the cooling and condensation capacity of the cover 1, the cooling channel 13 will cover as much of the cover 1 area as possible. The cooling channel 13 can be set to extend along the extension direction of the cover 1 body and along a plane. Therefore, there will be more space on the side of the inner cover 11 facing away from the seat plate 12. Based on this, the drainage channel 15 is set on the side of the inner cover 11 facing away from the seat plate 12 to make reasonable use of the space. The drainage channel 15 is reasonably set on the side of the inner cover 11 away from the seat plate 12, so as to realize the connection between the drainage channel 15, the cooling channel 13 and the steam channel 14.

[0069] In another embodiment of this utility model, the cooling device 2 is located on the side of the inner cover 11 facing away from the seat plate 12, so that the cooling device 2, the inner cover 11 and the seat plate 12 can be arranged sequentially along the thickness direction of the upper cover assembly 100, effectively reducing the space occupied by the cooling device 2 on the upper cover assembly 100 in the peripheral direction of the cover body 1, improving the structural compactness of the cover body 1, and the cooling device 2 can also be located at the edge of the inner cover 11, so as to be away from the heating element in the cooling channel 13, reducing the heat transfer of the heating element to the cooling device 2, reducing the working temperature of the cooling device 2, and ensuring the working life of the cooling device 2.

[0070] Meanwhile, the cooling device 2 is installed on the inner cover 11, which also facilitates the installation of a flow channel 15 on the side of the inner cover 11 facing away from the seat plate 12. This allows the airflow generated by the cooling device 2 to be blown into the cooling channel 13 from the top, so that the cooling airflow can diffuse throughout the entire cooling channel 13. Furthermore, the cooling channel 13 extends along the plate extension direction of the seat plate 12, which further improves the uniformity of airflow in the cooling channel 13, thereby improving the overall cooling uniformity and cooling efficiency.

[0071] In one embodiment, such as Figures 1 to 5 As shown, the air intake channel 15 is provided with an air intake 151 and an air outlet 152. The air intake 151 is located on the inner cover 11 and is connected to the cooling channel 13; the air outlet 152 is located on the side wall of the steam channel 14 and is connected to the steam channel 14.

[0072] In this embodiment, the air inlet 151 and the air outlet 152 are located at both ends of the air intake channel 15 along its extension direction, and both the air inlet 151 and the air outlet 152 are provided on the cover 1. The air inlet 151 is provided on the inner cover 11 and connects the air intake channel 15 with the cooling channel 13. That is, the air inlet 151 is located on the side of the cooling channel 13 away from the cooking cavity 702, so that the air inlet 151 is located at the upper part of the cooling channel 13 along the direction from the seat plate 12 to the inner cover 11. At the same time, the air outlet 152 is provided on the side wall of the cover 1 that forms the steam channel 14, and the air outlet 152 is located between the air inlet and the air outlet of the steam channel 14, so as to connect the air intake channel 15 with the steam channel 14.

[0073] It is understandable that by setting the air inlet 151 on the inner cover 11, the air inlet 15 is set on the side of the inner cover 11 facing away from the cooling channel 13. When the cooler cooling fluid enters the cooling channel 13 and comes into contact with the seat plate 12, the cooling fluid will heat up. The heated cooling fluid will expand in volume, decrease in density, and become lighter. This will cause the warmer air to flow upwards in the cooling channel 13 (that is, from the seat plate 12 to the inner cover 11) and flow out from the air inlet 151 located on the inner cover 11 to enter the air inlet 15. This will realize the fluid circulation of the cooling fluid in the cooling channel 13, which will facilitate the stratified circulation of hot and cold fluids, reduce turbulence during internal fluid flow, and improve the cooling effect on the seat plate 12.

[0074] Furthermore, the air outlet 152 connects the air intake channel 15 and the steam channel 14. The air outlet 152 is located on the side wall of the steam channel 14. The steam channel 14 extends from the cooking cavity 702 to the external space, and it extends approximately perpendicular to the cover 1. The extension direction of the air outlet 152 is perpendicular to the extension direction of the steam channel 14. The air outlet 152 is located between the air inlet and the air outlet of the steam channel 14, and is set closer to the air inlet of the steam channel 14. When cooling fluid is introduced into the steam channel 14 by the air intake channel 15, the cooling fluid flows out from the air outlet 152, which can improve the effect of preventing foam from breaking and overflowing in the steam channel 14.

[0075] In one embodiment, the steam passage 14 is located at the edge of the cooling passage 13; at least a portion of the drainage passage 15 is located between the cooling passage 13 and the steam passage 14.

[0076] It is understandable that, in order to ensure the flow area of ​​the cooling channel 13, the steam channel 14 is preferably located at the edge of the cover 1 so that the cooling channel 13 can cool the center of the cover 1. The high-temperature steam in the cooking cavity 702 can flow out through the steam channel 14. At the same time, the drainage channel 15 can be arranged adjacent to or at intervals with the steam channel 14 so that airflow can be blown into the steam channel 14 to break bubbles and prevent overflow.

[0077] It is understood that at least part of the flow channel 15 is located between the cooling channel 13 and the steam channel 14, so that the flow channel 15 can be connected to both the cooling channel 13 and the steam channel 14 at the same time, such as through two adjacent side walls or two opposite side walls of the air guide channel 16, to improve the structural compactness of the upper cover assembly 100, and to facilitate the separate setting of control valves to control the connection and disconnection between the flow channel 15 and the cooling channel 13, and between the flow channel 15 and the steam channel 14.

[0078] In one embodiment, the cover assembly 100 further includes a solenoid valve 3; the solenoid valve 3 includes a drive member 31 and a seal member 32, the drive member 31 is disposed on the cover body 1, the seal member 32 is disposed at the output end of the drive member 31, and the seal member 32 is located in the drainage channel 15.

[0079] In this embodiment, as Figures 1 to 3 As shown, the solenoid valve 3 includes a drive element 31, a push rod, and a seal 32. The push rod is located at the output end of the drive element 31, and the seal 32 is located at the end of the push rod away from the drive element 31. The drive element 31 can be a linear motor or an electromagnetic drive structure, such as an electromagnet and an iron core. When the electromagnet is energized, it generates a magnetic field, which in turn generates an attractive force to attract the iron core to move. The iron core is connected to the push rod so that it can drive the push rod to move after being energized. Furthermore, the push rod drives the seal 32 to move.

[0080] It is understandable that the seal 32 can block only the flow channel 15 during the movement, or it can block the air inlet 151 connecting the cooling channel 13 and the flow channel 15, or block the air outlet 152 connecting the steam channel 14 and the flow channel 15. For example, the drive member 31 drives the seal 32 to move, and when the seal 32 blocks the air inlet 151 or the air outlet 152, it can isolate the cooling channel 13 and the steam channel 14 from being connected.

[0081] Understandably, the single sealing element 32 blocks the drainage channel 15 to achieve the switching between the cooling channel 13 and the steam channel 14, thereby cooling the cover assembly 100 and breaking bubbles to prevent overflow at different stages of cooking. For example, when the food in the cooking cavity 702 is in the heating stage, the driving element 31 controls the sealing element 32 to block the drainage channel 15, so that cooling fluid is blown into the cooling channel 13 to cool the cover 1 and obtain condensed water with aroma molecules. Or, in the boiling stage, the solenoid valve 3 controls the cooling channel 13 and the steam channel 14 to connect. At this time, the cooling fluid generated by the cooling device 2 can enter the cooling channel 13 and the steam channel 14 at the same time to cool the cover 1 and obtain condensed water with aroma molecules, and break bubbles to prevent overflow in the steam channel 14. This effectively simplifies the spatial structure layout of the cover assembly 100, reduces the power load of the cover assembly 100, and reduces production costs.

[0082] In another embodiment of the present invention, the upper cover assembly 100 may be provided with a one-way valve 5, which is located in the flow channel 15 and may be located at the flow outlet 152, so that the cooling fluid in the cooling channel 13 can enter the steam channel 14 in one direction through the one-way valve 5, and prevent the high-temperature steam in the steam channel 14 from flowing back into the flow channel 15.

[0083] In one embodiment, such as Figure 3 As shown, the seal 32 includes a main body section 321 and an extension section 322; the main body section 321 is connected to the output end of the drive member 31, and the extension section 322 is located at the periphery of the main body section 321 and extends away from the main body section 321.

[0084] In this embodiment, the sealing element 32 is used to seal the air outlet 152, that is, it is provided on the side wall of the steam channel 14. The main body section 321 is connected to the output end of the drive element 31, and the main body section 321 protrudes in the direction of the steam channel 14. The main body section 321 can be a circular sealing column structure adapted to the shape of the air outlet 152, or it can be a circular sealing ring structure adapted to the shape of the air outlet 152. There is no limitation here. The extension section 322 is provided on the periphery of the main body section 321, and the extension section 322 extends from the main body section 321 in a direction away from the main body section 321. Preferably, the extension direction of the extension section 322 is also set at an acute angle with the direction in which the drive element 31 drives the sealing element 32 to move, so that the extension section 322 and the main body section 321 enclose and form a sealing cavity.

[0085] It is understandable that the main body section 321 blocks the air outlet 152 so that when the air outlet channel 15 and the steam channel 14 are isolated, part of the extension section 322 abuts against the peripheral area of ​​the air outlet 152. At this time, the extension section 322 is squeezed and deformed, and completely fits the peripheral area of ​​the air outlet 152, so that the seal 32 completely seals the air outlet 152. By setting the main body section 321 and the extension section 322, the sealing effect of the air outlet 152 is effectively improved. When the air outlet channel 15 and the cooling channel 13 are connected to cool the cover 1, the airflow is prevented from entering the steam channel 14, thereby affecting the normal cooking of the cooking cavity 702, and the cooling effect of the cover 1 is guaranteed. Cooling fluid is introduced into the cooling channel 13 through the cooling device 2 at different stages and at different times, or cooling fluid is introduced into the cooling channel 13 and the steam channel 14 simultaneously through the cooling device 2.

[0086] In one embodiment, such as Figure 7 As shown, the cover 1 is also provided with an air guide channel 16, which connects the cooling air outlet 21 and the cooling channel 13.

[0087] In this embodiment, the cooling device 2 is disposed on the cover 1 and located at the edge of the cooling channel 13. The cooling device 2 can be disposed at the outer edge of the upper surface of the cooling channel 13 or the outer edge of the side wall. Furthermore, the cooling device 2 can be disposed at a distance from the cooling channel 13, so that the cooling device 2 is as far away from the cooling channel 13 as possible or is kept at a certain distance from the cooling device 2.

[0088] Meanwhile, the cover 1 of the upper cover assembly 100 is also provided with an air guide channel 16. The air guide channel 16 is independently set up with the cooling channel 13 and the steam channel 14. The air guide channel 16 is connected to the cooling air outlet 21 of the cooling device 2, so that the cooling fluid generated by the cooling device 2 first flows into the air guide channel 16. The upper cover assembly 100 also includes a solenoid valve 3, which controls the connection between the air guide channel 16 and the cooling channel 13, or controls the connection between the air guide channel 16 and the steam channel 14. The cooling device 2 is set on the inner cover 11, which also facilitates the setting of the air guide channel 16 on the side of the inner cover 11 facing away from the seat plate 12. This allows the airflow generated by the cooling device 2 to be blown into the cooling channel 13 from the top through the air guide channel 16, so that the cooling airflow can diffuse throughout the entire cooling channel 13. Furthermore, the cooling channel 13 extends along the extension direction of the seat plate 12, which further improves the uniformity of the airflow in the cooling channel 13, and improves the overall cooling uniformity and cooling efficiency.

[0089] It is understandable that when cooling fluid is introduced into the cooling channel 13 through the air guide channel 16, the cooling fluid in the air guide channel 16 can enter from the top of the cooling channel 13 (that is, one side of the inner cover 11), and allow the cooler air to flow from the top to the bottom of the cooling channel 13 (that is, from the inner cover 11 to the seat plate 12). At the same time, the side of the seat plate 12 below the cooling channel 13, which faces away from the inner cover 11, comes into contact with the hot steam inside the cooking cavity 702. The fluid temperature on the seat plate 12 in the cooling channel 13 rises, and because the hot air temperature is high, its volume expands after being heated. The expansion reduces the density and weight, causing the warmer air to flow upwards in the cooling channel 13 (i.e., from the seat plate 12 to the inner cover 11) and out through the air outlet of the cooling channel 13 (i.e., the air inlet 151 of the air inlet channel 15), thus forming a thermal cycle in the cooling channel 13. The cooler air entering from the upper cooling air outlet 21 continuously flows from the inner cover 11 to the seat plate 12 to cool the seat plate 12 and condense the water vapor on one side of the cooking cavity 702 through the seat plate 12, effectively improving the condensation effect of the seat plate 12 on the cooking cavity 702.

[0090] In one embodiment, such as Figure 7 As shown, the air guide includes multiple air guide plates 17, which are set at an angle to the extension direction of the cover 1; some of the air guide plates 17 form an air guide channel 16 and are located at the cooling air outlet 21.

[0091] In this embodiment, the air guide includes multiple air guide plates 17. The air guide plate 17 can also be an air guide slab, air guide baffle, air guide wall, air guide pipe, air guide tube, etc., and is not limited here. The extension direction of the air guide plate 17 is set at an angle to the extension direction of the cover 1. Some of the air guide plates 17 enclose and form an air guide channel 16. The air guide plates 17 inclined at the cooling air outlet 21 make the enclosed air guide channel 16 also inclined, thereby guiding the airflow to flow evenly into the cooling channel 13.

[0092] It is understood that, based on the above-mentioned cooling device 2 being located on the side of the inner cover 11 facing away from the seat plate 12, and part of the air guide plate 17 being located at the cooling air outlet 21 and the inner cover 11, an air guide channel 16 connecting the cooling air outlet 21 and the cooling channel 13 is formed. The surface of the air guide plate 17 can be flat or curved, so that the enclosed air guide channel 16 can be a straight channel or a winding channel. Preferably, the air guide channel 16 is set as a winding channel to reduce the direct diffusion of the heating element in the cooling channel 13 to the cooling device 2 through the air guide channel 16, effectively reducing the working temperature of the cooling device 2 and ensuring the working life of the cooling device 2.

[0093] In one embodiment, a portion of the air guide channel 16 is located in the cooling channel 13, and the extension direction of the air guide channel 16 in the cooling channel 13 is set at an angle to the extension direction of the cover 1.

[0094] It is understood that the air guide channel 16 connects the cooling channel 13 and the cooling air outlet 21 of the cooling device 2. Part of the air guide channel 16 is located in the cooling channel 13. At the same time, the extension direction of the air guide channel 16 located in the cooling channel 13 is set at an angle to the extension direction of the inner cover 11. This allows the cooling airflow entering from the cooling device 2 into the air guide channel 16 to be blown into the cooling channel 13 at an angle to the extension direction of the inner cover 11 and towards the seat plate 12. This makes the airflow entering the cooling channel 13 smoother and more uniform, and prevents it from concentrating at the position of the seat plate 12 directly opposite the air guide channel 16. This ensures the cooling uniformity of the seat plate 12 and improves the condensation effect on the vapor containing aromatic substances.

[0095] Meanwhile, the inclined air guide channel 16 can increase the length of the air guide channel 16, making it easier to adjust the position of the cooling device 2 relative to the cooling channel 13 and reduce the impact of the heating element on the cooling device 2.

[0096] In one embodiment, such as Figures 8 to 10 As shown, the cooling channel 13 is provided with a cavity air inlet 131 and a cavity air outlet 132; the upper cover assembly 100 also includes a diversion part 18, which is provided on the inner wall of the cooling channel 13 and extends from the cavity air inlet 131 to the cavity air outlet 132.

[0097] In this embodiment, the cooling device 2 is provided with an air inlet, which is used to introduce airflow from the external space to blow airflow into the cooling channel 13 through the cooling air outlet 21. At the same time, the upper cover assembly 100 also includes a guide section 18, which can be a baffle structure or a rib structure. The guide section 18 can be a strip structure extending on the inner wall of the cooling channel 13, such as on the inner cover 11 or the seat plate 12.

[0098] Meanwhile, one end of the drainage section 18 is located at the air inlet 131 of the cavity, and the other end of the drainage section 18 is located at the air outlet 132 of the cavity, so that the drainage section 18 can extend from the air inlet 131 of the cavity to the air outlet 132 of the cavity.

[0099] It is understandable that by providing a guide section 18 in the cooling channel 13, after the airflow enters the cooling channel 13 from the cavity air inlet 131, the airflow can flow along the extension direction of the guide section 18 and flow to the cavity air outlet 132, thereby increasing the flow path of the guide section 18, improving the cooling uniformity of the airflow to the cooling channel 13, and improving the cooling effect of the airflow to the cooling channel 13.

[0100] In one embodiment, such as Figure 8 As shown, the top cover assembly 100 includes a plurality of drainage sections 18; one end of the plurality of drainage sections 18 extends from the cavity air inlet 131 toward the cavity air outlet 132.

[0101] It is understood that one end of each of the multiple air intake sections 18 originates from the air inlet 131 of the cavity and extends towards the air outlet 132 of the cavity. Furthermore, the multiple air intake sections 18 can be arranged in parallel or meandering along different directions, which is not limited here. By setting multiple air intake sections 18, the airflow can be divided to make the airflow entering the cooling channel 13 more uniform and dispersed, thereby effectively improving the cooling effect of the cooling channel 13.

[0102] In one embodiment, such as Figure 8 As shown, the cooling channel 13 is provided with multiple cavity air outlets 132; each cavity air outlet 132 corresponds to at least one air intake section 18.

[0103] It is understood that the cooling channel 13 is provided with multiple cavity air outlets 132, which are located at the periphery of the cooling channel 13 to allow airflow to be directed from different directions and positions. Each cavity air outlet 132 is provided with at least one guide section 18 so that the airflow can be evenly directed from the multiple cavity air outlets 132 through the guide section 18. In addition to providing the guide section 18 extending from the cavity air inlet 131 to the cavity air outlet 132, a guide section 18 can also be provided at the cavity air outlet 132 to guide the airflow in the cooling channel 13 into the cavity air outlet 132, thereby improving the airflow efficiency.

[0104] In one embodiment, such as Figures 8 to 10 As shown, the upper cover assembly 100 also includes a heating element 6, which is disposed on the cover 1 and located in the cooling channel 13; the heating element 6 and the flow guide 18 enclose a flow guide channel 61, which extends from the air inlet to the air outlet 132 of the cavity.

[0105] In this embodiment, the heating element 6 is a heating wire or a heating film. The heating element 6 is disposed in the cooling channel 13 of the cover 1, such as on the inner cover 11 or the seat plate 12, which is not limited here. The heating element 6 can be surrounded by the flow guide 18 to form a flow guide channel 61. For example, the heating element 6 and the flow guide 18 are disposed on the side wall of the same cooling channel 13, and the two are arranged in parallel and spaced apart to form the flow guide channel 61. Or the heating element 6 and the flow guide 18 are disposed on the side walls of different cooling channels 13, and the two are arranged relative to each other and spaced apart to form the flow guide channel 61, which is not limited here.

[0106] It is understood that the heating element 6 is preferably a heating wire structure, and the heating element 6 is preferably disposed on the seat plate 12 so as to heat the seat plate 12 through the heating element 6, thereby reducing the condensation water generated on the seat plate 12 after cooking and improving the taste of the food. The heating wire itself has a certain thickness or height, and the heating wire and the guide part 18 cooperate with each other to form a guide channel 61, thereby guiding and dividing the airflow so that the airflow entering the cooling channel 13 is more uniform and dispersed, effectively improving the cooling effect of the cooling channel 13.

[0107] In one embodiment, such as Figure 9 and Figure 10 As shown, the flow guide 18 and the heating element 6 are disposed on the same cavity wall of the cooling channel 13, and the flow guide 18 and the heating element 6 enclose a flow guide channel 61 in the extending direction of the cavity wall of the cooling channel 13. It can be understood that the flow guide 18 and the heating element 6 can be disposed on the same cavity wall of the cooling channel 13 to enclose a flow guide channel 61 in the extending direction of the cavity wall of the cooling channel 13. For example, if the flow guide 18 and the heating element 6 are both disposed on the inner cover 11 or the seat plate 12, the airflow can flow along the flow guide channel 61 in the cooling channel 13, effectively improving the uniformity of airflow and improving the heat dissipation performance of the seat plate 12.

[0108] Optionally, the flow guide 18 and the heating element 6 are disposed on different cavity walls of the cooling channel 13. The flow guide 18 protrudes towards the heating element 6, and the flow guide 18 and the heating element 6 surround each other in opposite directions to form a guide channel 61. It can be understood that the flow guide 18 and the heating element 6 can be disposed on different cavity walls of the cooling channel 13, such as one of the flow guide 18 and the heating element 6 being disposed on the inner cover 11, and the other of the flow guide 18 and the heating element 6 being disposed on the seat plate 12, so that the airflow can flow along the guide channel 61 in the cooling channel 13, effectively improving the uniformity of airflow and improving the heat dissipation performance of the seat plate 12.

[0109] Optionally, the height of the drain portion 18 protruding from the cavity wall of the cooling channel 13 is greater than or equal to 2 mm; optionally, the distance between the drain portion 18 and the cavity wall of the opposite cooling channel 13 is greater than or equal to 1 mm and less than or equal to 20 mm.

[0110] This utility model also proposes a cooking utensil 700, such as Figure 11 As shown, the cooking appliance 700 includes a pot body 701 and the aforementioned lid assembly 100, which is connected to the pot body 701. The specific structure of the lid assembly 100 is as described in the foregoing embodiments. Since the cooking appliance 700 adopts all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, which will not be described in detail here.

[0111] Understandably, the cooking appliance 700 can be a cooking appliance 700, a pressure rice cooker, an electric soup pot, an electric medicine pot, or an electric clay pot, etc. The pot body 701 includes a base, an electric heater disposed on the base, and a rice cooker container disposed in the base and sitting on the electric heater. The lid 1 of the upper cover assembly 100 is rotatably hinged to the base at one end, and the other end is fastened to the base by a buckle, so that the upper cover assembly 100 can be opened by opening the buckle.

[0112] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An upper cover assembly, characterized by, The upper cover assembly comprises: a cover body provided with a cooling channel and a steam channel, the cooling channel being communicated with the steam channel; and a cooling device provided on the cover body, the cooling device being provided with a cooling air outlet communicated with the cooling channel.

2. The upper cover assembly of claim 1, wherein, The cover body is further provided with a drainage channel communicated with the cooling channel and the steam channel.

3. The upper cover assembly of claim 2, wherein, The cover body comprises an inner cover and a seat plate, and the inner cover and the seat plate enclose the cooling channel; The drainage channel is provided on a side of the inner cover away from the seat plate.

4. The upper cover assembly of claim 3, wherein, The drainage channel is provided with a drainage air inlet and a drainage air outlet, the drainage air inlet being provided on the inner cover and communicated with the cooling channel; The drainage air outlet is provided on a side wall of the steam channel and communicated with the steam channel.

5. The upper cover assembly of claim 2, wherein, The steam channel is located at an edge of the cooling channel; At least part of the drainage channel is located between the cooling channel and the steam channel.

6. The overcap assembly of any one of claims 2 to 5, wherein, The upper cover assembly further comprises a one-way valve provided in the drainage channel; The one-way valve is arranged to guide the airflow to enter the steam channel in one direction.

7. The overcap assembly of any one of claims 2 to 5, wherein, The upper cover assembly further comprises an electromagnetic valve; The electromagnetic valve comprises a driving member provided on the cover body and a sealing member provided on an output end of the driving member, the sealing member being located in the drainage channel.

8. The overcap assembly of claim 7, wherein, The sealing member comprises a main body segment and an extension segment; The main body segment is connected to the output end of the driving member, and the extension segment is provided on a peripheral edge of the main body segment and extends away from the main body segment.

9. The overcap assembly of any one of claims 2 to 5, wherein, The cover body is further provided with an air guide channel communicated with the cooling air outlet and the cooling channel.

10. The overcap assembly of claim 9, wherein, Part of the air guide channel is located in the cooling channel, and the channel extension direction of the air guide channel in the cooling channel is arranged at an angle with the extension direction of the cover body.

11. The overcap assembly of any one of claims 2 to 5, wherein, The cooling channel is provided with a cavity air inlet and a cavity air outlet; The upper cover assembly further comprises a drainage portion provided on an inner wall of the cooling channel, one end of the drainage portion extending from the cavity air inlet to the direction of the cavity air outlet.

12. The overcap assembly of claim 11, wherein, The cooling channel is provided with a plurality of cavity air outlets, and each cavity air outlet corresponds to at least one drainage portion; And / or, the upper cover assembly comprises a plurality of drainage portions, one end of the plurality of drainage portions extending from the cavity air inlet to the direction of the cavity air outlet.

13. The overcap assembly of claim 11, wherein, The upper cover assembly further comprises a heating member provided on the cover body and located in the cooling channel; The heating member and the drainage portion enclose a flow guide channel, and the flow guide channel extends from the air inlet to the direction of the cavity air outlet.

14. The overcap assembly of claim 13, wherein, The drainage portion and the heating member are provided on the same cavity wall of the cooling channel, and the drainage portion and the heating member enclose the flow guide channel in the cavity wall extension direction of the cooling channel; And / or, the drainage portion and the heating member are provided on different cavity walls of the cooling channel, the drainage portion protruding in the direction of the heating member, and the drainage portion and the heating member enclose the flow guide channel in opposite directions; And / or, the height of the flow guide part protruding from the cavity wall of the cooling channel is greater than or equal to 2mm; And / or, the distance between the flow guide part and the opposite cavity wall of the cooling channel is greater than or equal to 1mm and less than or equal to 20mm.

15. A cooking appliance characterized by, The cooking utensil comprises: a pot body; and The upper cover assembly as claimed in any one of claims 1 to 14, which is connected to the pot body.

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