Upper cover assembly and cooking utensil

Abstract

The utility model discloses an upper cover subassembly and cooking utensil relates to household electrical appliance technical field, upper cover subassembly includes cover body, cooling device and control valve, the cover body is equipped with wind guide channel, cooling channel and steam channel, cooling device is provided in the cover body, cooling device is equipped with cooling air outlet, cooling air outlet is communicated with wind guide channel, the steam channel is equipped with steam channel. The control valve is arranged on the cover body, and the control valve is arranged to control the air guide channel to communicate with the cooling channel and / or control the air guide channel to communicate with the steam channel. The utility model aims to reduce the use of electronic devices and simplify the spatial structure layout of the upper cover assembly on the basis of simultaneously realizing condensation and overflow prevention so as to reduce the load and the cost.

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, reducing its fragrance. To address this, a condensation device is installed to condense the steam containing rice aroma molecules during the boiling stage and return the condensate to the cooking chamber, thus enhancing the aroma. Additionally, the cooking appliance is equipped with a bubble-breaking and overflow-preventing device that blows air into the steam valve during boiling to prevent overflow.

[0003] However, installing both a condenser and a bubble-breaking anti-overflow device on a cooking appliance increases the number of related electronic components, complicates the overall structure, and affects the spatial layout of the appliance's lid, resulting in increased costs and excessive load on the appliance. Utility Model Content

[0004] The main purpose of this invention is to propose a top cover assembly and cooking appliance that aims to reduce the use of electronic components and simplify the spatial structure layout of the top cover assembly while simultaneously achieving condensation and spill prevention, 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 is provided with an air guide channel, a cooling channel and a steam channel;

[0007] A cooling device, wherein the cooling device is disposed on the cover, the cooling device is provided with a cooling air outlet, the cooling air outlet being connected to the air guide channel; and

[0008] A control valve is disposed on the cover body, and the control valve is configured to control the air guide channel to communicate with the cooling channel and / or control the air guide channel to communicate with 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 cooling channel extends along the plate extension direction of the seat plate.

[0011] In one embodiment, the air guide channel is located on the side of the inner cover facing away from the seat plate;

[0012] And / or, the steam passage is located at the edge of the cover;

[0013] And / or, at least a portion of the air duct is located between the cooling duct and the steam duct.

[0014] In one embodiment, the cover is provided with a first connecting hole and a second connecting hole, the first connecting hole connecting the air guide channel and the cooling channel, and the second connecting hole connecting the air guide channel and the steam channel;

[0015] The control valve blocks the first or second connecting hole.

[0016] In one embodiment, the extension direction of the first connecting hole and the extension direction of the second connecting hole are the same or perpendicular to each other.

[0017] And / or, the top cover assembly includes two control valves, one of which is located in the first communication port and the other of which is located in the second communication port.

[0018] In one embodiment, the cover is further provided with a steam vent, which is configured to connect the steam passage and the cooking chamber;

[0019] The second connecting hole and the steam port are spaced apart along the extension direction of the steam channel.

[0020] In one embodiment, the control valve includes a drive element and a seal element, the drive element being disposed on the cover body, the seal element being disposed at the output end of the drive element, and the seal element being located in the air guide channel;

[0021] The driving element drives the seal to move, so that the seal blocks the cooling channel or the steam channel.

[0022] In one embodiment, the seal includes:

[0023] A sealing body, the sealing body being connected to the driving component;

[0024] A first sealing portion is disposed on the sealing body and is configured to block the cooling channel; and

[0025] A second sealing part is disposed on the sealing body and is configured to block the steam passage.

[0026] In one embodiment, the second sealing portion includes a main body segment and an extension segment;

[0027] The main body segment is located on the sealing body, and the extension segment is located on the periphery of the main body segment and extends away from the main body segment.

[0028] This utility model also proposes a cooking utensil, the cooking utensil comprising:

[0029] The pot body; and

[0030] As described above, the top cover assembly is connected to the pot body.

[0031] The cover assembly of this utility model includes a cover body, a cooling device, and a control valve. The cover body is provided with an air guide channel, a cooling channel, and a steam channel. The cooling device is located on the cover body and has a cooling air outlet connected to the air guide channel. The cooling device can blow airflow into the air guide channel. The control valve is located on the cover body and can control the connection between the air guide channel and the cooling channel and / or control the connection between the air guide channel and the steam channel. This cover assembly is independently connected to the cooling channel through the air guide channel, so that the airflow generated by the cooling device can be independently introduced into the cooling channel to cool the cover body, thereby cooling the cooking cavity through the cover body to cool the steam containing aroma molecules. The air is cooled and condensed to form condensate with aromatic molecules that flows back into the rice cooker; or the airflow generated by the cooling device is separately connected to the steam channel through the air guide channel, so that the airflow is directed into the steam channel to break up the boiling foam in the steam channel and prevent overflow through the lower temperature airflow; or the air guide channel is connected to both the cooling channel and the steam channel at the same time, so that while cooling the top cover assembly to obtain condensate, it can also break up the foam during cooking to prevent overflow. Thus, a single cooling device can achieve the dual functions of condensation and foam breaking to prevent overflow, effectively simplifying the spatial structure layout of the top cover assembly, reducing the use of electronic components, and reducing the power load and manufacturing cost of the cooking appliance. Attached Figure Description

[0032] 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.

[0033] Figure 1 This is a schematic diagram of the structure of a cooking utensil in one embodiment of the present invention;

[0034] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0035] Figure 3 This is a cross-sectional schematic diagram of a cooking utensil in one embodiment of the present invention;

[0036] Figure 4 In one embodiment of this utility model Figure 3 A magnified view of a section at point B in the middle;

[0037] Figure 5 In another embodiment of this utility model Figure 3 A magnified view of a section at point B in the middle;

[0038] Figure 6 This is a schematic diagram of the sealing element in one embodiment of the present invention.

[0039] Explanation of icon numbers:

[0040] 100. Top cover assembly; 1. Cover body; 11. Inner cover; 12. Seat plate; 13. Cooling channel; 13a. First connecting hole; 14. Air guide channel; 15. Steam channel; 15a. Second connecting hole; 15b. Steam port; 2. Cooling device; 3. Control valve; 31. Drive component; 32. Push rod; 33. Sealing component; 331. Sealing body; 332. First sealing part; 333. Second sealing part; 3331. Main body section; 3332. Extension section; 4. Steam valve; 500. Cooking utensil; 501. Pot body; 5011. Cooking cavity.

[0041] 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

[0042] 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.

[0043] 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.

[0044] 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.

[0045] Please refer to Figures 1 to 5 As shown, this utility model proposes a cover assembly 100, which includes a cover body 1, a cooling device 2, and a control valve 3. The cover body 1 is provided with an air guide channel 14, a cooling channel 13, and a steam channel 15. The cooling device 2 is provided on the cover body 1 and has a cooling air outlet connected to the air guide channel 14. The control valve 3 is provided on the cover body 1 and is configured to control the connection between the air guide channel 14 and the cooling channel 13 and / or control the connection between the air guide channel 14 and the steam channel 15.

[0046] In this embodiment, the cover assembly 100 is applied to the cooking appliance 500, which includes, but is not limited to, rice cookers, pressure rice cookers, electric soup pots, electric medicine pots, and electric clay pots. The cover assembly 100 is used to cover the main body of the cooking appliance 500 (such as the pot body 501). The cover assembly 100 includes a cover 1, a cooling device 2, and a control valve 3. The cover 1 is the main supporting component of the 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 3.

[0047] In this embodiment, the cooling device 2 is a device that generates a cold source fluid, such as a fan, air pump, or water pump that generates airflow. The cover 1 is provided with a cooling channel 13, and the cooling device 2 is provided with a cooling air outlet. The cooling air outlet can be directly connected to the air guide channel 14, allowing the cold source fluid generated by the cooling device 2 to enter the air guide channel 14. Specifically, the air guide channel 14 is located on the cover 1 and can be arranged in a tubular or cavity-like manner. 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 5011 of the cooking appliance 500, 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 5011 of the cooking appliance 500; 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 5011 of the cooking appliance 500.

[0048] It is understandable that, such as Figure 1 and Figure 3 As shown, the cover assembly 100 and the cooking appliance 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 up 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 through the air guide channel 14, so as to condense the steam containing the aroma molecules of rice in the cooking chamber 5011 through the cover 1, and make the steam condense on the cover 1 and flow back into the cooking chamber 5011 to enhance the aroma of the rice. At this time, the cover assembly 100 and the cooking appliance having the cover assembly 100 are in a cooling state.

[0049] In this embodiment, the top cover assembly 100 is also provided with a steam channel 15, and a steam valve 4 is provided on the steam channel 15. The steam channel 15 is connected to the cooking cavity 5011 of the pot body 501. During the heating and boiling stage of cooking rice, the boiling foam with rice paste is easy to overflow from the steam channel 15. 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 of the cooling device 2 to the steam channel 15, cold air is blown into the steam channel 15. The foam will break after being cooled, so as to realize the foam-breaking and overflow prevention of the cooking appliance. At this time, the top cover assembly 100 and the cooking appliance with the top cover assembly 100 are in the foam-breaking state.

[0050] Meanwhile, the cover body 1 of the upper cover assembly 100 is also provided with an air guide channel 14. The air guide channel 14 is independently set with the cooling channel 13 and the steam channel 15. The air guide channel 14 is connected to the cooling air outlet of the cooling device 2, so that the cooling fluid generated by the cooling device 2 flows into the air guide channel 14. The upper cover assembly 100 also includes a control valve 3. The control valve 3 controls the air guide channel 14 to be connected to the cooling channel 13 alone, or controls the air guide channel 14 to be connected to the steam channel 15 alone, or controls the air guide channel 14 to be connected to both the cooling channel 13 and the steam channel 15 at the same time.

[0051] It is understood that the control valve 3 can be a solenoid valve or a two-way valve. The control valve 3 can be set in the air guide channel 14, or set separately in the cooling channel 13, or set separately in the steam channel 15. Preferably, the control valve 3 is set in the air guide channel 14. By opening and closing the control valve 3, the air guide channel 14 and the cooling channel 13 are connected. At this time, the cooling fluid generated by the cooling device 2 flows into the cooling channel 13 through the air guide channel 14 to cool and condense the cover 1, and condense the steam with aroma molecules back into the food. Alternatively, the air guide channel 14 and the steam channel 15 are connected. At this time, the cooling fluid generated by the cooling device 2 flows into the steam channel 15 through the air guide channel 14 to break bubbles and prevent overflow by cold air. Alternatively, the air guide channel 14 is connected to both the cooling channel 13 and the steam channel 15 to break bubbles and prevent overflow by cold air when cooling the cover assembly 100.

[0052] Understandably, by setting up the air guide channel 14 and the control valve 3, only one cooling device 2 is needed to both introduce cooling fluid into the cooling channel 13 to cool the cover plate and obtain condensed water with aroma molecules, and introduce cooling fluid into the steam channel 15 to eliminate overflow foam. The control valve 3 can be opened at different times of cooking to control the connection between the air guide channel 14 and the cooling channel 13, or between the air guide channel 14 and the steam channel 15, reducing the use and setting of related channels, and reducing the use of the cooling device 2 and related electronic components. This effectively simplifies the structural layout of the cover assembly 100, thereby effectively reducing the power load and manufacturing cost of the cooking appliance.

[0053] The cover assembly 100 includes a cover body 1, a cooling device 2, and a control valve 3. The cover body 1 is provided with an air guide channel 14, a cooling channel 13, and a steam channel 15. The cooling device 2 is located on the cover body 1 and has a cooling air outlet connected to the air guide channel 14, allowing the cooling device 2 to blow airflow into the air guide channel 14. The control valve 3 is located on the cover body 1 and can control the connection between the air guide channel 14 and the cooling channel 13 and / or control the connection between the air guide channel 14 and the steam channel 15. The cover assembly 100 is connected to the cooling channel 13 separately through the air guide channel 14, allowing the airflow generated by the cooling device 2 to be independently introduced into the cooling channel 13 to cool the cover body 1, thereby cooling the cooking cavity 5011 through the cover body 1. The cooling device 2 cools and condenses water vapor containing aromatic molecules, forming condensate that flows back into the rice cooker. Alternatively, the cooling device 2 can be connected to the steam channel 15 via the air guide channel 14, allowing the airflow generated by the cooling device 2 to be directed into the steam channel 15 to break up the boiling foam in the steam channel 15 and prevent overflow. Or, the air guide channel 14 can be connected to both the cooling channel 13 and the steam channel 15, so that while cooling the top cover assembly 100 to obtain condensate, it can also break up the cooking foam and prevent overflow. Thus, the dual functions of condensation and foam breaking and overflow prevention can be achieved with a single cooling device 2, effectively simplifying the spatial structure layout of the top cover assembly 100, reducing the use of electronic components, and reducing the power load and manufacturing cost of the cooking appliance.

[0054] In one embodiment, such as Figure 4 and Figure 5 As shown, the cover 1 includes an inner cover 11 and a seat plate 12, which together form a cooling channel 13; the cooling channel 13 extends along the plate extension direction of the seat plate 12.

[0055] In this embodiment, the lid 1 is disposed on the pot body 501 of the cooking appliance. The lid 1 and the pot body 501 are both the main structure of the cooking appliance. The lid 1 includes an inner lid 11 and a seat plate 12. The seat plate 12 is disposed on the pot body 501 of the cooking appliance. When the lid 1 covers the pot body 501, the seat plate 12 and the pot body 501 of the cooking appliance form a cooking cavity 5011 for cooking ingredients. When the rice boils, the cooling device 2 blows cooling air into the cooling channel 13 through the air guide channel 14 to cool the seat plate 12. The seat plate 12 cools the steam containing aromatic substances in the cooking cavity 5011, so that the steam condenses and flows back to the cooking cavity 5011 to continue to participate in the cooking of rice, thereby solving the problem of loss of aromatic substances caused by violent boiling.

[0056] Furthermore, the inner cover 11 is connected to the side of the seat plate 12 facing away from the pot body 501, 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 cooling device 2 is located on the side of the inner cover 11 facing away from the seat plate 12, and the air guide channel 14 can also be located 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.

[0057] It is understandable that 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. This effectively reduces the space occupied by the cooling device 2 on the upper cover assembly 100 in the peripheral direction of the cover body 1, improves 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 that it can be far away from the heating element in the cooling channel 13, reduce the heat transfer of the heating element to the cooling device 2, reduce the working temperature of the cooling device 2, and ensure the working life of the cooling device 2.

[0058] Meanwhile, the cooling device 2 is installed on the inner cover 11, which also facilitates the installation of an air guide channel 14 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 14, 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.

[0059] In one embodiment, such as Figures 1 to 5 As shown, the air guide channel 14 is located on the side of the inner cover 11 facing away from the seat plate 12. It can be understood that, in order to increase the flow area of ​​the cooling channel 13 and to cool the seat plate 12 as comprehensively as possible, the cooling channel 13 is preferably laid flat between the inner cover 11 and the seat plate 12, covering the entire seat plate 12. Therefore, the cooling channel 13 occupies a large area in the extension direction of the seat plate 12. Based on this, the air guide channel 14 is located on the side of the inner cover 11 facing away from the seat plate 12, so that the air guide channel 14 and the cooling channel 13 are aligned along... The upper cover assembly 100 is arranged perpendicular to the plate direction of the seat plate 12 to improve the overall structural compactness of the upper cover assembly 100. At the same time, the air guide channel 14 is set on the side of the inner cover 11 facing away from the seat plate 12, which also facilitates the opening of a connecting hole on the inner cover 11 to connect the air guide channel 14 and the cooling channel 13. The connecting hole blows air into the cooling channel 13 from above, which effectively improves the uniformity of airflow in the cooling channel 13, and allows the cooler airflow to sink to the surface of the seat plate 12, thereby improving the cooling effect on the seat plate 12.

[0060] Optionally, the steam channel 15 is located at the edge of the cover 1. It is understood that, in order to ensure the flow area of ​​the cooling channel 13, the steam channel 15 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 5011 can flow out through the steam channel 15. At the same time, the air guide channel 14 can be arranged adjacent to or at intervals with the steam channel 15 so that airflow can be blown into the steam channel 15 to break bubbles and prevent overflow.

[0061] Optionally, at least a portion of the air guide channel 14 is located between the cooling channel 13 and the steam channel 15. It is understood that the air guide channel 14 is located between the cooling channel 13 and the steam channel 15, so that the air guide channel 14 can be connected to both the cooling channel 13 and the steam channel 15 simultaneously, such as through two adjacent side walls or two opposite side walls of the air guide channel 14, to improve the structural compactness of the upper cover assembly 100 and facilitate the control valve 3 to control the connection and disconnection between the air guide channel 14 and the cooling channel 13, and between the air guide channel 14 and the steam channel 15.

[0062] In one embodiment, the cover 1 is provided with a first connecting hole 13a and a second connecting hole 15a. The first connecting hole 13a connects the air guide channel 14 and the cooling channel 13, and the second connecting hole 15a connects the air guide channel 14 and the steam channel 15. The control valve 3 can block the first connecting hole 13a or the second connecting hole 15a.

[0063] It is understandable that, such as Figure 4As shown, in the cooling state, the first connecting hole 13a connects the air guide channel 14 and the cooling channel 13. The first connecting hole 13a is located on the inner cover 11 of the cover body 1, that is, the first connecting hole 13a is located on the side of the cooling channel 13 away from the cooking cavity 5011. When the air guide channel 14 inputs cooling fluid into the cooling channel 13, the cooling fluid in the air guide channel 14 can enter from the top of the cooling channel 13 (that is, from the 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 seat plate 12, which is below the cooling channel 13, has its side facing away from the inner cover 11 connected to the cooking cavity 5011. After the internal hot steam comes into contact, the fluid temperature on the seat plate 12 in the cooling channel 13 rises. Because the hot air is at a higher temperature, it expands in volume, becomes less dense, and becomes lighter. This causes the hotter 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, thus forming a thermal cycle in the cooling channel 13. The cooler air entering from the upper first connecting hole 13a continuously flows from the inner cover 11 to the seat plate 12 to cool the seat plate 12. The seat plate 12 also condenses the water vapor on one side of the cooking cavity 5011, effectively improving the condensation effect of the seat plate 12 on the cooking cavity 5011.

[0064] Furthermore, such as Figure 5 As shown, in the bubble-breaking state, the second connecting hole 15a connects the air guide channel 14 and the steam channel 15. The second connecting hole 15a is located on the side wall of the steam channel 15. The channel of the steam channel 15 extends from the cooking cavity 5011 to the external space, and it extends approximately perpendicular to the cover 1. The extension direction of the second connecting hole 15a is perpendicular to the extension direction of the steam channel 15. The second connecting hole 15a is located between the air inlet and the air outlet of the steam channel 15, and is set closer to the air inlet of the steam channel 15. When the air guide channel 14 inputs cooling fluid into the steam channel 15, the cooling fluid flows out from the second connecting hole 15a, which can improve the effect of preventing foam from breaking and overflowing in the steam channel 15.

[0065] In one embodiment, such as Figures 3 to 5As shown, the extension direction of the first connecting hole 13a is the same as or perpendicular to the extension direction of the second connecting hole 15a. It can be understood that the control valve 3 can block one of the first connecting hole 13a and the second connecting hole 15a to connect the air guide channel 14 with the cooling channel 13, or to connect the air guide channel 14 with the steam channel 15. Furthermore, since the extension directions of the first connecting hole 13a and the second connecting hole 15a are the same or perpendicular, the opening and closing of the first connecting hole 13a and the second connecting hole 15a can be controlled simultaneously by the same control valve 3. For example, if the extension directions of the first connecting hole 13a and the second connecting hole 15a are perpendicular, the control valve 3... The valve seat can block the first connecting hole 13a and the second connecting hole 15a in different states through two adjacent side walls. For example, in the cooling state, when one side wall of the valve seat blocks the first connecting hole 13a, the air guide channel 14 is disconnected from the cooling channel 13, and the other adjacent side wall of the valve seat is released from blocking the second connecting hole 15a, so that the air guide channel 14 is connected to the steam channel 15. The same principle applies when one side wall of the valve seat blocks the second connecting hole 15a, which will not be elaborated here. This enables unidirectional movement of the same control valve 3, which can simultaneously control the opening and closing of the first connecting hole 13a and the second connecting hole 15a, reducing the control difficulty, simplifying the control structure, and reducing the use of related electronic components.

[0066] Optionally, the upper cover assembly 100 includes two control valves 3, one control valve 3 located in the first connecting hole 13a and the other control valve 3 located in the second connecting hole 15a. It is understood that the upper cover assembly 100 may be equipped with one control valve 3, located in the air guide channel 14, which can block one of the first connecting hole 13a and the second connecting hole 15a to achieve communication between the air guide channel 14 and the cooling channel 13, or between the air guide channel 14 and the steam channel 15. Alternatively, the upper cover assembly 100 may be equipped with two control valves 3, one control valve 3 located in the first connecting hole 13a and the other control valve 3 located in the second connecting hole 15a. Each control valve 3 independently controls either the first connecting hole 13a or the second connecting hole 15a, and the two control valves 3 are electrically connected to each other. In the cooling state, while one control valve 3 controls the first connecting hole 13a to connect the air guide channel 14 and the cooling channel 13, the other control valve 3 blocks the second connecting hole 15a to isolate the air guide channel 14 and the steam channel 15, thus preventing airflow... The airflow in channel 14 flows only to cooling channel 13, thereby cooling and condensing the water vapor containing aroma molecules, and returning the condensed water containing aroma molecules to the rice cooker. In the bubble-breaking state, one control valve 3 controls the first connecting hole 13a to connect the air guide channel 14 and the steam channel 15, and another control valve 3 blocks the first connecting hole 13a to isolate the air guide channel 14 and the cooling channel 13, so that the airflow in the air guide channel 14 flows only to the steam channel 15, so as to break the bubbles and prevent overflow of the boiling foam in the steam channel 15 through the lower temperature airflow. In addition, the two control valves 3 can also control the connection between the air guide channel 14 and the cooling channel 13 and the steam channel 15 at the same time, so that while cooling the upper cover assembly 100 to obtain condensed water, the cooking foam can also be broken to prevent overflow. By using the same cooling device 2 and air guide channel 14, the cooling of the cover 1 and the breaking of bubbles and preventing overflow of steam can be achieved at the same time, reducing the use of electronic components and improving the overall structural compactness of the upper cover assembly 100.

[0067] In one embodiment, such as Figures 3 to 5 As shown, the cover 1 is also provided with a steam port 15b, which is configured to connect the steam channel 15 and the cooking cavity 5011; the second connecting hole 15a and the steam port 15b are spaced apart along the extension direction of the steam channel 15.

[0068] In this embodiment, the seat plate 12 of the cover 1 is provided with a steam port 15b, which connects the steam channel 15 and the cooking chamber 5011. That is, the boiling foam and steam in the cooking chamber 5011 will enter the steam channel 15 through the steam port 15b. At the same time, the steam channel 15 is also provided with a steam valve 4 to ensure that the steam is discharged from the steam valve 4 in one direction, and to prevent external water vapor or debris from entering the cooking chamber 5011 through the steam channel 15.

[0069] Meanwhile, the second connecting hole 15a and the steam port 15b are spaced apart along the extension direction of the steam channel 15. That is, the second connecting hole 15a is located between the steam valve 4 and the steam port 15b, so that the second connecting hole 15a and the steam port 15b have a certain height difference in the direction perpendicular to the plate 12, so that the airflow in the air guide channel 14 can blow airflow from the top of the steam channel 15 to the steam port 15b, thereby causing the high-temperature foam to be cooled and broken by the cooler air, effectively improving the foam breaking and overflow prevention effect.

[0070] In one embodiment, such as Figures 3 to 5 As shown, the control valve 3 includes a drive element 31 and a seal element 33. The drive element 31 is located on the cover 1, and the seal element 33 is located at the output end of the drive element 31. The seal element 33 is located in the air guide channel 14. The drive element 31 drives the seal element 33 to move so that the seal element 33 blocks the cooling channel 13 or the steam channel 15.

[0071] In this embodiment, the control valve 3 includes a drive element 31, a push rod 32, and a seal 33. The push rod 32 is located at the output end of the drive element 31, and the seal 33 is located at the end of the push rod 32 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, thereby generating an attractive force to attract the iron core to move. The iron core is connected to the push rod 32 so that it can drive the push rod 32 to move after being energized. Furthermore, the push rod 32 drives the seal 33 to move.

[0072] It is understandable that the seal 33 can block the cooling channel 13 or the steam channel 15 during the movement. For example, when the seal 33 blocks the first connecting hole 13a, it can isolate the air guide channel 14 and the cooling channel 13 and connect the air guide channel 14 and the steam channel 15. When the drive member 31 drives the seal 33 to move, the seal 33 blocks the second connecting hole 15a, isolates the air guide channel 14 and the steam channel 15, and connects the air guide channel 14 and the cooling channel 13.

[0073] It is understandable that a single sealing element 33 can block the first connecting hole 13a and the second connecting hole 15a respectively through two adjacent side walls, or it can block the first connecting hole 13a and the second connecting hole 15a respectively through two opposite side walls. In this way, while achieving cooling and condensation and bubble breaking and overflow prevention, the use of related electronic components, such as cooling device 2 and control valve 3, can be reduced. The air guide channel 14 can be connected and disconnected from the cooling channel 13 and the steam channel 15 respectively through a cooling device 2 and a control valve 3, so as to cool the upper cover assembly 100 and break bubbles and prevent overflow at different stages of cooking. This effectively simplifies the spatial structure layout of the upper cover assembly 100, reduces the power load of the upper cover assembly 100, and reduces production costs.

[0074] In one embodiment, such as Figure 6 As shown, the sealing element 33 includes a sealing body 331, a first sealing part 332 and a second sealing part 333. The sealing body 331 is connected to the driving element 31. The first sealing part 332 is disposed on the sealing body 331 and is configured to block the cooling channel 13. The second sealing part 333 is disposed on the sealing body 331 and is configured to block the steam channel 15.

[0075] It is understood that the seal 33 is an elastic sealing structure, and the sealing body 331 is the main support structure of the seal 33. The sealing body 331 is connected to the output end of the drive 31 or to the push rod 32. The first sealing part 332 and the second sealing part 333 are both provided on the sealing body 331. The first sealing part 332 and the second sealing part 333 can be a sealing platform, sealing protrusion, or other structures that protrude from the sealing body 331. The first sealing part 332 and the second sealing part 333 can be integrally molded with the sealing body 331 or can be detachably connected. No limitation is made here.

[0076] Furthermore, the first sealing part 332 and the second sealing part 333 can be disposed on the adjacent or opposite side walls of the sealing body 331. Correspondingly, the first connecting hole 13a and the second connecting hole 15a are located on the adjacent or opposite side walls of the air guide channel 14. So that when the driving member 31 drives the sealing member 33 to move in a straight line, when the first sealing part 332 blocks the first connecting hole 13a, the second sealing part 333 disengages from blocking the second connecting hole 15a, and when the second sealing part 333 blocks the second connecting hole 15a, the first sealing part 332 disengages from blocking the first connecting hole 13a. This enables a single control valve 3 to control the connection between the air guide channel 14 and the cooling channel 13, or the connection between the air guide channel 14 and the steam channel 15. Based on the simplification of the control mechanism and the cooling device 2, the control efficiency is improved, and different functions can be provided for the upper cover assembly 100 at different stages.

[0077] In one embodiment, such as Figure 6 As shown, the second sealing part 333 includes a main body section 3331 and an extension section 3332; the main body section 3331 is disposed on the sealing body 331, and the extension section 3332 is disposed on the periphery of the main body section 3331 and extends in a direction away from the main body section 3331.

[0078] In this embodiment, the main body segment 3331 is disposed on the sealing body 331, and the main body segment 3331 protrudes towards the steam passage 15. The main body segment 3331 can be a circular sealing column structure adapted to the shape of the second connecting hole 15a, or a circular sealing ring structure adapted to the shape of the second connecting hole 15a. There is no limitation here. The extension segment 3332 is disposed on the periphery of the main body segment 3331, and the extension segment 3332 extends from the main body segment 3331 in a direction away from the main body segment 3331. Preferably, the extension direction of the extension segment 3332 is also set at an acute angle to the direction in which the driving member 31 drives the sealing member 33 to move, so that the extension segment 3332 and the main body segment 3331 enclose and form a sealing cavity.

[0079] It is understandable that when the main body section 3331 blocks the second connecting hole 15a to isolate the air guide channel 14 and the steam channel 15, part of the extension section 3332 abuts against the peripheral area of ​​the second connecting hole 15a. At this time, the extension section 3332 is squeezed and deformed, and fits completely against the peripheral area of ​​the second connecting hole 15a, so that the second sealing part 333 completely seals the second connecting hole 15a. By setting the main body section 3331 and the extension section 3332, the sealing effect of the second connecting hole 15a is effectively improved, so that when the air guide channel 14 and the cooling channel 13 are connected to cool the cover 1, the airflow is prevented from entering the steam channel 15, thereby affecting the normal cooking of the cooking cavity 5011, and the cooling effect of the cover 1 is guaranteed.

[0080] This utility model also proposes a cooking utensil 500, such as Figure 1 and Figure 3 As shown, the cooking appliance 500 includes a pot body 501 and the aforementioned lid assembly 100, which is connected to the pot body 501. The specific structure of the lid assembly 100 is as described in the foregoing embodiments. Since the cooking appliance 500 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.

[0081] Understandably, the cooking appliance 500 can be a cooking appliance, pressure rice cooker, electric soup pot, electric medicine pot, or electric clay pot, etc. The pot body 501 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.

[0082] 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 an air guide channel, a cooling channel and a steam channel; a cooling device provided in the cover body, the cooling device being provided with a cooling air outlet communicating with the air guide channel; and a control valve provided in the cover body, the control valve being configured to control the communication between the air guide channel and the cooling channel and / or the communication between the air guide channel and the steam channel.

2. The upper cover assembly of claim 1, 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 cooling channel extends along the extending direction of the plate body of the seat plate.

3. The upper cover assembly of claim 2, wherein, The air guide channel is provided on the side of the inner cover away from the seat plate; And / or, the steam channel is provided at the edge of the cover body; And / or, at least part of the air guide channel is located between the cooling channel and the steam channel.

4. The upper cover assembly of claim 1, wherein, The cover body is provided with a first communication hole and a second communication hole, the first communication hole communicating the air guide channel and the cooling channel, and the second communication hole communicating the air guide channel and the steam channel; The control valve blocks the first communication hole or the second communication hole.

5. The upper cover assembly of claim 4, wherein, The hole extending direction of the first communication hole and the hole extending direction of the second communication hole are the same or are arranged vertically; And / or, the upper cover assembly comprises two control valves, one of which is provided in the first communication hole and the other of which is provided in the second communication hole.

6. The upper cover assembly of claim 4, wherein, The cover body is further provided with a steam port configured to communicate the steam channel and a cooking cavity; The second communication hole and the steam port are arranged in the extending direction of the steam channel.

7. The overcap assembly of any one of claims 1 to 6, wherein, The control valve comprises a driving member and a sealing member, the driving member being provided in the cover body, and the sealing member being provided at the output end of the driving member and located in the air guide channel; The driving member drives the sealing member to move so as to block the cooling channel or the steam channel.

8. The overcap assembly of claim 7, wherein, The sealing member comprises: a sealing body connected to the driving member; a first sealing part provided in the sealing body and configured to block the cooling channel; and a second sealing part provided in the sealing body and configured to block the steam channel.

9. The overcap assembly of claim 8, wherein, The second sealing part comprises a main body section and an extending section; The main body section is provided in the sealing body, and the extending section is provided at the periphery of the main body section and extends away from the main body section.

10. A cooking appliance characterized by, The cooking appliance comprises: a pot body; and The upper cover assembly according to any one of claims 1 to 9 is connected to the pot body.

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