Cover assembly for a cooking apparatus and cooking apparatus

Abstract

The present application relates to the technical field of household appliances, and discloses a cover assembly for a cooking device and the cooking device, the cover assembly comprising: a cover provided with a first exhaust passage; a first exhaust valve assembly having an open position for opening the first exhaust passage and a closed position for closing the first exhaust passage, the first exhaust valve assembly comprising a float magnet; a swing member provided with a first magnet having a first magnetic pole, the swing member being swingably arranged on the cover, the swing member having a first position and a second position, in the first position, the first magnetic pole faces the float magnet, a magnetic force between the first magnetic pole and the float magnet causes the first exhaust valve assembly to be in one of the open position and the closed position, in the second position, the swing member is tilted, the float magnet loses the magnetic force of the first magnetic pole, and the first exhaust valve assembly is reset to the other of the open position and the closed position; and a driving structure capable of driving the swing member to move between the first position and the second position.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more specifically to a cover assembly for cooking equipment and cooking equipment. Background Technology

[0002] When a pressure rice cooker is in a hot state (after cooking, water vapor is released from the pot, and the temperature is high), the area of ​​the through hole below the pressure ball that connects to the outside is small, and the exhaust channel is small. This makes it difficult to close the lid when the rice cooker is hot, as a lot of force is required.

[0003] The related technology discloses a lid assembly and cooking device, including: a lid with a first exhaust channel and a second exhaust channel; a first exhaust valve assembly including a float rod, a float magnet at one end of the float rod, and a sealing element on the float rod, the first exhaust valve assembly being used to open or close the first exhaust channel; a second exhaust valve assembly being used to open or close the second exhaust channel; and a drive assembly capable of simultaneously driving the first exhaust valve assembly to open the first exhaust valve channel and the second exhaust valve assembly to open the second exhaust valve channel, or simultaneously driving the first exhaust valve assembly to close the first exhaust valve channel and the second exhaust valve assembly to close the second exhaust valve channel. When venting is required, the drive assembly simultaneously drives the first exhaust valve assembly to open the first exhaust valve channel and the second exhaust valve assembly to open the second exhaust valve channel, allowing steam in the pot cavity to be discharged simultaneously through the first and second exhaust channels, increasing the venting speed and enabling rapid discharge of steam from the pot cavity, thus preventing difficulty in closing the lid when hot.

[0004] The drive assembly includes a drive structure and a magnet structure that is driveably connected to the drive structure. The magnet structure moves along a first direction under the drive of the drive structure to have a first position and a second position. In the first position, the magnetic force between the magnet structure and the float magnet causes the float rod to move so that the seal opens the air inlet. In the second position, the magnetic force between the magnet structure and the float magnet causes the float rod to move so that the seal closes the air inlet.

[0005] In the aforementioned related technologies, the stroke of the magnet structure in the first direction needs to be long enough to control the opening or closing of the first exhaust passage of the first exhaust valve assembly. However, the driving structure is a solenoid valve, and the stroke of the solenoid valve is limited, which makes it impossible to reliably control the opening or closing of the first exhaust passage of the first exhaust valve assembly. Summary of the Invention

[0006] In view of this, the present invention provides a cover assembly for a cooking device and a cooking device to solve the problem in the related art that the limited stroke of the solenoid valve leads to the inability to reliably control the opening or closing of the first exhaust valve assembly to the first exhaust passage.

[0007] In a first aspect, the present invention provides a cover assembly for a cooking device, the cover assembly comprising: The cover is equipped with a first exhaust channel; A first exhaust valve assembly has an open position for opening the first exhaust passage and a closed position for closing the first exhaust passage, the first exhaust valve assembly including a float magnet; A swinging member is provided with a first magnet, the first magnet having a first magnetic pole. The swinging member is swingably disposed on the cover. The swinging member has a first position and a second position. In the first position, the first magnetic pole faces the float magnet, and the magnetic force between the first magnetic pole and the float magnet causes the first exhaust valve assembly to be in one of the open position and the closed position. In the second position, the first magnetic pole is tilted, the float magnet loses the magnetic force of the first magnetic pole, and the first exhaust valve assembly resets to the other of the open position and the closed position. The drive structure is capable of driving the swinging member to move between the first position and the second position.

[0008] Beneficial effects: By oscillating the swinging component on the lid, and equipping it with a first magnet, when venting is required, the swinging component is positioned in the first position, with the first magnetic pole of the first magnet facing the float magnet. The magnetic force between the first magnetic pole and the float magnet causes the first vent valve assembly to be in the open position. At this time, the steam in the pot cavity can be quickly discharged through the first vent channel, avoiding the difficulty of closing the lid when it is hot. When cooking is required, the drive structure drives the swinging component to swing to the second position, with the first magnetic pole tilted. The float magnet loses the magnetic force of the first magnetic pole, and the first vent valve assembly returns to the closed position, ensuring the pressure in the pot cavity and enabling normal cooking. Alternatively, when venting is required, the drive structure drives the swinging component to swing to the second position, the first magnetic pole is tilted, the float magnet loses the magnetic force of the first magnetic pole, and the first vent valve assembly returns to the open position. At this time, the steam in the pot cavity can be quickly discharged through the first vent channel, avoiding difficulty in closing the lid when hot. When cooking is required, the swinging component swings to the first position, and the magnetic force between the first magnetic pole and the float magnet moves the first vent valve assembly to the closed position, ensuring the pressure in the pot cavity and achieving normal cooking. By setting a swinging component to carry the first magnet, the drive structure only needs to output a small stroke to change the relative orientation of the first magnet and the float magnet. Compared with related technologies, the first magnet does not need to move a long distance in a straight line. Even if a solenoid valve with a limited stroke is used as the drive structure, the switching of the swinging component between the first and second positions can be completed smoothly. This effectively solves the technical problem in related technologies where the limited stroke of the solenoid valve makes it impossible to reliably and smoothly control the opening and closing of the first vent valve assembly and the first vent channel, reducing the stroke design requirements of the drive structure.

[0009] In one alternative embodiment, the cover is connected to a fixing frame, and the swinging member is hinged to the fixing frame via a pivot.

[0010] Beneficial effects: The mounting bracket is assembled on the lid, supporting the swing component and the pivot. This eliminates the need for a separate, complex hinge mounting slot on the lid, reducing the difficulty of injection molding the lid shell. By mounting the swing component and pivot on the bracket, and then assembling the bracket and pivot together as a whole, the accumulated assembly tolerances of multiple parts are reduced, preventing the swing component from jamming due to shell deformation or assembly misalignment. Furthermore, the lid is subjected to high-temperature steam baking during cooking. The bracket, being an independent rigid support component, has superior structural rigidity compared to thin lid shells, making it less prone to warping and deformation due to heat. The pivot hinge point is rigidly positioned by the bracket, preventing a significant increase in hinge gap over long-term use. This ensures that the swing angle of the swing component does not drift over time, guaranteeing a consistently accurate relative angle between the first magnet and the float magnet, achieving stable magnetic on / off control, and extending the lifespan of the lid components.

[0011] In one optional embodiment, the fixing frame includes a plate, a support mounting portion protruding from one side of the plate, and a hinge mounting portion. The support mounting portion is fixedly connected to the cover, and the swing member is hinged to the hinge mounting portion via the pivot. The height of the support mounting portion is higher than that of the hinge mounting portion, so that an accommodating space for accommodating the swing member is formed below the plate.

[0012] Beneficial effects: By making the height of the support mounting part higher than the hinge mounting part, a space is formed below the plate to accommodate the swinging component. During the swinging of the component around the axis of rotation, the plate and cover will not interfere with the swinging component, eliminating the need to increase the overall thickness of the cover to allow for swinging allowance. The space below the plate to accommodate the swinging component prevents it from protruding outward and occupying the upper space of the cover, effectively controlling the overall thickness of the cover and allowing for a thinner and lighter appearance of the rice cooker. The plate, support mounting part, and hinge mounting part are integrally molded, eliminating the need to process two separate parts, reducing the number of molds and assembly steps. After the support mounting part raises the plate, a heat insulation buffer gap exists between the plate and the high-temperature cover, reducing the direct conduction of high temperature from the cover to the hinge mounting part, alleviating the heat-induced warping deformation of the hinge mounting part, and ensuring that the hinge point dimensions remain stable over a long period. The swinging angle of the swinging component will not shift with thermal expansion and contraction, thus ensuring the alignment accuracy of the magnetic poles of the first magnet and the float magnet, and continuously and stably controlling the opening or closing of the first exhaust channel.

[0013] In one optional embodiment, the cover includes an inner cover, the inner cover includes a cover body and a protruding structure disposed on the cover body, the protruding structure includes a main body portion and a connecting portion, the connecting portion is lower than the main body portion, the support mounting portion is connected to the connecting portion, and one end of the plate away from the support mounting portion overlaps the main body portion. The first exhaust valve assembly is located below the connection portion.

[0014] Beneficial effects: The inner cover includes a protruding structure comprising a high-level main body and a low-level connecting part. The support mounting part is fixed to the low-level connecting part, and the end of the plate overlaps with the high-level main body, forming a double-support point. The two support points can disperse the force generated when the swinging component swings. Under long-term repeated swinging and high-temperature thermal expansion and contraction conditions, the fixing frame is not prone to loosening or warping, and the position of the hinge mounting part will not shift, thus accurately ensuring the swinging position of the swinging component. The end of the plate overlaps with the main body of the protruding structure. When the fixing frame undergoes slight thermal expansion and deformation under high cooking temperatures, the end of the plate can release some internal stress, preventing extrusion deformation due to rigid locking at both ends. This avoids deformation of the holes in the hinge mounting part, which could lead to shaft jamming. In addition, the height of the connecting part is lower than that of the main body, so that the support mounting part is assembled on the lower connecting part, while the end of the plate overlaps on the higher main body. The longitudinal height of the accommodating space below the plate is further increased, and the swinging part can achieve a larger swing angle. Under the premise of limited drive structure stroke, the swinging part can fully complete the switching between the two postures of magnetic pole facing and magnetic pole tilting, avoiding the defects of magnetic force residue and incomplete closure of the first exhaust valve assembly due to insufficient swing stroke.

[0015] In one optional embodiment, the connecting portion is provided with a stud, the supporting mounting portion is provided with a connecting hole, and the fastener passes through the connecting hole and is fastened in the stud.

[0016] Beneficial effects: The connecting part is equipped with studs, and the support mounting part is equipped with connecting holes. Fasteners pass through the connecting holes and are fastened in the studs, which facilitates the positioning and assembly of the fixing frame.

[0017] In one alternative embodiment, the swing member is provided with a first mounting groove, and the first magnet is embedded in the first mounting groove.

[0018] Beneficial effect: By setting the first mounting groove in the swing component, it is convenient to install and remove the first magnet.

[0019] In one optional embodiment, the drive structure includes a solenoid valve and a push rod. The push rod is connected to the output end of the solenoid valve. When the solenoid valve is not energized, the swing member is in the first position under the action of gravity. The push rod abuts against the side of the swing member. After the solenoid valve is energized, the push rod pushes the swing member, causing the swing member to swing toward the second position.

[0020] Beneficial effects: When the solenoid valve is not energized, the oscillating component is in the first position under the action of gravity, with the push rod abutting against the side of the oscillating component. After the solenoid valve is energized, the push rod pushes the oscillating component, with the force direction perpendicular to the oscillation radius of the oscillating component. The lever arm is sufficient, and the solenoid valve outputs a small thrust to drive the oscillating component to swing around the axis to the second position. The push rod abuts against the side of the oscillating component for drive, and the drive mechanism can be arranged in the unused space on the side of the oscillating component, effectively utilizing space.

[0021] In one optional embodiment, when the swing member is in the first position, the magnetic force between the first magnetic pole and the float magnet causes the first exhaust valve assembly to be in the closed position. When the swing member is in the second position, the first magnetic pole is tilted, and under the action of gravity, the first exhaust valve assembly is reset to the open position.

[0022] Beneficial effects: When the solenoid valve is not energized, the oscillating component remains in the first position under gravity. At this time, the first magnet's magnetic pole faces the float magnet, and the first exhaust valve assembly is kept closed by magnetic force. This is suitable for cooking, heat preservation, and other working scenarios. The solenoid valve does not need continuous energization; it is only energized when pressure relief is required. The push rod pushes the oscillating component to the second position, the first magnet tilts, and the magnetic force between the first magnet and the float magnet is lost. After losing magnetic force, the first exhaust valve assembly automatically resets under gravity, opening the first exhaust channel to quickly release high-temperature steam from the pot. This fully relieves pressure before closing the lid while it is hot, significantly reducing the resistance to closing the lid and solving the problem of difficulty in closing the lid under high-temperature and steamy conditions, thus improving the user experience. Because the solenoid valve is only energized during pressure relief and not during other operating conditions, it remains in a de-energized and static state for extended periods. This results in less coil heating, avoiding the risks of high-temperature aging, insulation damage, and short circuits caused by continuous energization, reducing the probability of electrical failure, and extending the overall lifespan of the cooking equipment.

[0023] In one optional embodiment, the push rod is provided with a second magnet. When the swing member is in the second position, the second magnet and the float magnet generate a repulsive force. Under the action of gravity and the repulsive force, the first exhaust valve assembly is reset to the open position.

[0024] Beneficial effects: Considering that condensation, rice water, and other substances may remain on the inner lid after cooking, causing the float rod to stick to the first exhaust channel, or that the steam pressure inside the pot may prevent the first exhaust valve assembly from automatically resetting under gravity, a second magnet is installed on the push rod. When the swinging part is in the second position, a repulsive force is generated between the second magnet and the float magnet. This repulsive force is superimposed on gravity, and the two forces work together to drive the first exhaust valve assembly to reset quickly, thus quickly opening the first exhaust channel and further improving the pressure relief rate. When closing the lid while it is hot, the lid can be fastened without pressing hard, solving the problems of difficult lid closing and operation jamming under high temperature and steam conditions.

[0025] In one optional embodiment, the cover body is further provided with a second exhaust channel, and the cover body assembly further includes a second exhaust valve assembly for opening or closing the second exhaust channel. The push rod includes a first connecting arm and a second connecting arm, the first connecting arm abutting against the side of the swing member, and the second connecting arm being adapted to drive the second exhaust valve assembly.

[0026] Beneficial effects: The push rod includes a first connecting arm and a second connecting arm. The first connecting arm abuts against the side of the swinging member, and the second connecting arm is adapted to drive the second exhaust valve assembly. When the solenoid valve is energized and drives the push rod to move, the first and second connecting arms move synchronously. The first connecting arm pushes the swinging member to swing to the second position, and the first exhaust valve assembly automatically resets to the open position, opening the first exhaust channel. At the same time, the second connecting arm drives the second exhaust valve assembly to open the second exhaust channel. Steam in the pot cavity can be discharged simultaneously through the first and second exhaust channels, increasing the exhaust speed and allowing steam in the pot cavity to be discharged quickly, avoiding difficulty in closing the lid when hot. When cooking is required, the solenoid valve resets, causing the push rod to reset, the first connecting arm to retract, and the swinging member to reset to the first position. Under the action of magnetic force, the first exhaust valve assembly closes the first exhaust valve channel. At the same time, the second connecting arm retracts, and the second exhaust valve assembly closes the second exhaust valve channel, ensuring the pressure in the pot cavity and achieving normal cooking. Therefore, a single solenoid valve can simultaneously drive the first and second exhaust valve assemblies, resulting in a simple structure and convenient control of exhaust.

[0027] In a second aspect, the present invention also provides a cooking device, including the aforementioned cover assembly for the cooking device.

[0028] In one alternative implementation, the cooking device includes a rice cooker or an electric pressure cooker. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is an exploded view of a cover assembly for a cooking device according to an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view of point B in the middle; Figure 4 A schematic diagram showing the mounting bracket after it has been assembled into the inner cover; Figure 5 for Figure 4 Enlarged view of point C in the middle; Figure 6 This is a schematic diagram of the oscillating component; Figure 7 Schematic diagram of the mounting bracket Figure 1 ; Figure 8 Schematic diagram of the mounting bracket Figure 2 ; Figure 9 This is a schematic diagram of the gland and push rod after assembly; Figure 10 This is a cross-sectional view of a cover assembly for a cooking device according to an embodiment of the present invention when the swinging member is in the first position; Figure 11 for Figure 10 Enlarged view of point D in the middle; Figure 12 This is a cross-sectional view of a cover assembly for a cooking device according to an embodiment of the present invention when the swinging member is in the second position; Figure 13 for Figure 12 Enlarged view at point E in the middle; Figure 14 A cross-sectional view of the second exhaust valve assembly when the second exhaust passage is closed; Figure 15 A cross-sectional view of the second exhaust valve assembly when the second exhaust passage is opened.

[0031] Explanation of reference numerals in the attached figures: 1. Cover body; 101. Inner cover; 1011. First exhaust channel; 1012. Vent hole; 1013. Steam chamber; 1014. Cover body; 1015. Protruding structure; 10151. Main body; 10152. Connecting part; 10153. Stud; 10154. Second guide structure; 1016. Second exhaust channel; 10161. Exhaust through hole; 102. Inner cover reinforcing plate; 103. Insulation cover plate; 2. First exhaust valve assembly; 201. Float magnet; 202. Float rod; 203. Sealing element; 204. Magnet cover; 205. Sealing ring; 3. 301. Swing component; 4. First mounting groove; 5. First magnet; 6. Fixing bracket; 7. Plate; 8. Support mounting part; 9. Connecting plate; 10. Connecting hole; 11. Hinged mounting part; 2. Rotating shaft; 32. Solenoid valve; 4. Push rod; 53. Slot; 6. First connecting arm; 7. First horizontal part; 80. Second horizontal part; 80. Second mounting groove; 80. Inclined connecting part; 80. Second connecting arm; 9. Second magnet; 10. Pressure cap; 11. First guide structure; 12. Sealing ring; 13. Ball valve. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] The following is combined with Figures 1 to 15 The following describes embodiments of the present invention.

[0037] According to an embodiment of the present invention, in one aspect, a cover assembly for a cooking device is provided, including a cover 1, a first exhaust valve assembly 2, a swing member 3, and a drive structure.

[0038] The cover 1 is provided with a first exhaust channel 1011; the first exhaust valve assembly 2 has an open position for opening the first exhaust channel 1011 and a closed position for closing the first exhaust channel 1011, and the first exhaust valve assembly 2 includes a float magnet 201; the swing member 3 is provided with a first magnet 4, the first magnet 4 has a first magnetic pole, the swing member 3 is swingably disposed on the cover 1, the swing member 3 has a first position and a second position, in the first position, the first magnetic pole faces the float magnet 201, the magnetic force between the first magnetic pole and the float magnet 201 causes the first exhaust valve assembly 2 to be in one of the open position and the closed position, in the second position, the first magnetic pole is tilted, the float magnet 201 loses the magnetic force of the first magnetic pole, and the first exhaust valve assembly 2 resets to the other of the open position and the closed position; the driving structure can drive the swing member 3 to move between the first position and the second position.

[0039] In this embodiment, the swing member 3 is oscillatingly mounted on the lid 1. The swing member 3 is equipped with a first magnet 4. When venting is required, the swing member 3 is positioned in a first position, with the first magnetic pole of the first magnet 4 facing the float magnet 201. The magnetic force between the first magnetic pole and the float magnet 201 causes the first vent valve assembly 2 to be in the open position. At this time, the steam in the pot cavity can be quickly discharged through the first vent channel 1011, avoiding difficulty in closing the lid when hot. When cooking is required, the drive structure drives the swing member 3 to swing to a second position, with the first magnetic pole tilted. The float magnet 201 loses the magnetic force of the first magnetic pole, and the first vent valve assembly 2 returns to the closed position, ensuring the pressure in the pot cavity and enabling normal cooking. Alternatively, when venting is required, such as... Figure 12 and Figure 13As shown, the driving structure drives the swinging component 3 to swing to the second position, the first magnetic pole is tilted, the float magnet 201 loses the magnetic force of the first magnetic pole, and the first exhaust valve assembly 2 returns to the open position. At this time, the steam in the pot cavity can be quickly discharged through the first exhaust channel 1011, avoiding the difficulty of closing the lid when it is hot; when cooking is required, such as Figure 10 and Figure 11 As shown, the oscillating member 3 swings to the first position, and the magnetic force between the first magnetic pole and the float magnet 201 moves the first exhaust valve assembly 2 to the closed position, ensuring the pressure inside the pot cavity and achieving normal cooking. By setting the oscillating member 3 to carry the first magnet 4, the drive structure only needs to output a small stroke to change the relative orientation of the first magnet 4 and the float magnet 201. Compared with related technologies, the first magnet 4 does not need to move a long distance in a straight line. Even if the solenoid valve 7 with a limited stroke is used as the drive structure, the switching of the oscillating member 3 between the first position and the second position can be completed smoothly. This effectively solves the technical problem in related technologies that the limited stroke of the solenoid valve 7 makes it impossible to reliably and smoothly control the opening and closing of the first exhaust channel 1011 of the first exhaust valve assembly 2, and reduces the stroke design requirements of the drive structure.

[0040] In one specific embodiment, the cover 1 is provided with an air outlet 1012, and a steam chamber 1013 is formed inside the cover 1. The steam chamber 1013 is connected to the air outlet 1012, and the first exhaust channel 1011 is connected to the steam chamber 1013.

[0041] More specifically, the cover 1 includes an inner cover 101 and a heat-insulating cover 103. The heat-insulating cover 103 is disposed on the side of the inner cover 101 near the inner cavity of the pot. The heat-insulating cover 103 and the inner cover 101 form a steam chamber 1013, and the vent 1012 is located at the top of the steam chamber 1013.

[0042] In one specific embodiment, the first exhaust channel 1011 is provided with an air inlet at its inlet. The air inlet is connected to the inner cavity of the pot through a through hole on the cover plate. The first exhaust valve assembly 2 includes a float rod 202, a sealing member 203 disposed on the float rod 202, and a float magnet 201 disposed at the top of the float rod 202. When the sealing member 203 is in sealing contact with the air inlet around the perimeter, the first exhaust channel 1011 is closed, and steam cannot enter the first exhaust channel 1011. When the sealing member 203 moves upward or downward away from the air inlet, the first exhaust channel 1011 is opened, and steam can enter the first exhaust channel 1011.

[0043] More specifically, combined Figures 10 to 13When the swinging member 3 is in the first position, the float magnet 201 is directly opposite the first magnet 4, and the first magnet 4 exerts an attractive force on the float magnet 201, causing the first exhaust valve assembly 2 to move upward as a whole, so that the sealing member 203 seals the lower end of the air inlet, and steam cannot enter the first exhaust channel 1011; when the swinging member 3 is in the second position, the float magnet 201 loses its attractive force, the first exhaust valve assembly 2 moves downward as a whole, the sealing member 203 leaves the air inlet, and steam can enter the first exhaust channel 1011 and finally be discharged outside the cooking equipment.

[0044] In one specific embodiment, an annular mounting groove is provided near the lower end of the float rod 202, and the seal 203 is installed in the mounting groove and wraps around the lower end of the float rod 202. In one specific embodiment, a magnet cover 204 is threadedly connected to the top of the float rod 202, and the float magnet 201 is located between the magnet cover 204 and the float rod 202. The magnet cover 204 and the float rod 202 cooperate to fix the float magnet 201.

[0045] More specifically, the float magnet 201 is provided with a sealing ring 205 to achieve a seal between the float magnet 201 and the magnet cover 204, which can prevent steam from contaminating the float magnet 201 through the threaded gap between the magnet cover 204 and the float rod 202.

[0046] In an alternative embodiment, the magnet cover 204 may be omitted, and a groove may be provided at the top of the float rod 202, in which the float magnet 201 is embedded. Alternatively, the float magnet 201 may be glued to the top of the float rod 202.

[0047] In one embodiment, the cover 1 is connected to a fixed frame 5, and the swing member 3 is hinged to the fixed frame 5 via a pivot 6.

[0048] In this embodiment, the fixing frame 5 is assembled on the cover 1, and the fixing frame 5 supports the swing component 3 and the rotating shaft 6. This eliminates the need for a separate, complex hinge mounting slot on the cover 1, reducing the difficulty of injection molding the cover 1 shell. The swing component 3 and rotating shaft 6 are mounted on the fixing frame 5, and the pre-assembled components are then assembled onto the cover 1 as a whole, reducing the accumulated assembly tolerances of multiple parts and preventing the swing component 3 from becoming stuck due to shell deformation or assembly misalignment. Furthermore, the cover 1 is subjected to high-temperature steam baking for extended periods during cooking. The fixing frame 5, being an independent rigid support component, has a structural rigidity superior to the thin cover 1 shell, making it less prone to warping and deformation due to heat. The hinge point of the rotating shaft 6 is rigidly positioned by the fixing frame 5, ensuring that the hinge gap will not significantly increase after long-term use. This ensures that the swing angle of the swing component 3 does not drift with usage time, guaranteeing the long-term accuracy of the relative angle between the first magnet 4 and the float magnet 201, continuously and stably achieving magnetic on / off control, and extending the service life of the cover assembly.

[0049] Specifically, the pivot 6 is set horizontally.

[0050] In one specific embodiment, the rotating shaft 6 is made of stainless steel, and the oscillating component 3 is made of POM material.

[0051] In one embodiment, combined Figure 4 , Figure 7 and Figure 8 The fixing frame 5 includes a plate 501, a support mounting part 502 protruding from one side of the plate 501, and a hinge mounting part 503. The support mounting part 502 is fixedly connected to the cover 1. The swing member 3 is hinged to the hinge mounting part 503 through a rotating shaft 6. The height of the support mounting part 502 is higher than that of the hinge mounting part 503, so that a space for accommodating the swing member 3 is formed below the plate 501.

[0052] In this embodiment, by making the height of the support mounting part 502 higher than that of the hinge mounting part 503, a space is formed below the plate 501 to accommodate the swinging member 3. During the swinging of the swinging member 3 around the axis of rotation 6, the plate 501 and the cover 1 will not interfere with the swinging member 3, eliminating the need to increase the overall thickness of the cover 1 to allow for swinging allowance. The space below the plate 501 to accommodate the swinging member 3 prevents the swinging member 3 from protruding outward and occupying the upper space of the cover 1, effectively controlling the overall thickness of the cover 1 and making the rice cooker appear thinner. The plate 501, support mounting part 502, and hinge mounting part 503 are integrally formed, eliminating the need to process two separate parts, the support base and the hinge base, reducing the number of molds and assembly steps. After the support mounting part 502 raises the plate 501, there is a heat insulation buffer gap between the plate 501 and the high-temperature cover 1, which reduces the direct conduction of the high temperature of the cover 1 to the hinge mounting part 503, alleviates the heat-induced warping deformation of the hinge mounting part 503, and allows the hinge point dimensions to remain stable for a long time. The swing angle of the swinging part 3 will not shift with thermal expansion and contraction, thereby ensuring the magnetic pole alignment accuracy of the first magnet 4 and the float magnet 201, and continuously and stably controlling the opening or closing of the first exhaust channel 1011.

[0053] Specifically in one embodiment, such as Figure 7 As shown, the hinge mounting part 503 includes two spaced lugs with shaft holes. The rotating shaft 6 is fixed in the shaft hole, and the swing member 3 is rotatably mounted on the rotating shaft 6. Alternatively, the rotating shaft 6 can be rotatably mounted in the shaft hole, and the swing member 3 is fixed on the rotating shaft 6.

[0054] In one specific embodiment, one of the lugs is integrally connected to the side of the support mounting portion 502, which can improve the strength of the lug and thus prevent the hinged mounting portion 503 from deforming.

[0055] In one embodiment, the cover 1 includes an inner cover 101, which is combined with... Figure 4 and Figure 5The inner cover 101 includes a cover body 1014 and a protruding structure 1015 provided on the cover body 1014. The protruding structure 1015 includes a main body 10151 and a connecting part 10152. The connecting part 10152 is lower than the main body 10151. The support mounting part 502 is connected to the connecting part 10152. The end of the plate 501 away from the support mounting part 502 overlaps the main body 10151. The first exhaust valve assembly 2 is located below the connecting part 10152.

[0056] In this embodiment, the inner cover 101 includes a protruding structure 1015, which includes a high main body portion 10151 and a low connecting portion 10152. The support mounting portion 502 is fixed to the low connecting portion 10152. The end of the plate 501 overlaps with the high main body portion 10151, forming a double-support point. The two support positions can disperse the force generated when the swinging member 3 swings. Under long-term repeated swinging and high-temperature thermal expansion and contraction conditions, the fixing frame 5 is not easy to loosen or warp, and the position of the hinge mounting portion 503 will not shift, thereby accurately ensuring the swinging position of the swinging member 3. The end of the plate 501 overlaps with the main body portion 10151 of the protruding structure 1015. When the fixing frame 5 is heated and undergoes slight thermal expansion deformation under high cooking temperature, the end of the plate 501 can release some internal stress and will not be squeezed and deformed due to rigid locking at both ends. This can prevent the hinge mounting portion 503 from deforming at the hole position and causing the rotating shaft 6 to jam. In addition, the height of the connecting part 10152 is lower than that of the main body part 10151, so that the support mounting part 502 is assembled on the lower connecting part 10152, while the end of the plate 501 overlaps on the higher main body part 10151. The longitudinal height of the accommodating space below the plate 501 is further increased, and the swing member 3 can achieve a larger swing amplitude. Under the premise of limited drive structure stroke, the swing member 3 can fully complete the switching between the two postures of magnetic pole facing and magnetic pole tilting, avoiding the defects of magnetic force residue and incomplete closure of the first exhaust valve assembly 2 due to insufficient swing stroke.

[0057] In one embodiment, the connecting part 10152 is provided with a stud 10153, the support mounting part 502 is provided with a connecting hole 5022, and the fastener passes through the connecting hole 5022 and is fastened in the stud 10153.

[0058] In this embodiment, the connecting part 10152 is provided with a stud 10153, and the support mounting part 502 is provided with a connecting hole 5022. The fastener passes through the connecting hole 5022 and is fastened in the stud 10153, which facilitates the positioning and assembly of the fixing frame 5.

[0059] Specifically in one embodiment, such as Figure 8As shown, the support mounting part 502 includes four support walls that form a hollow cavity. A connecting plate 5021 is provided inside the four support walls, and a connecting hole 5022 is located at the center of the connecting plate 5021. This structure ensures that the support mounting part 502 has sufficient strength while keeping its weight as small as possible.

[0060] In one embodiment, such as Figure 6 , Figure 11 and Figure 13 As shown, the swing member 3 is provided with a first mounting groove 301, and the first magnet 4 is embedded in the first mounting groove 301.

[0061] In this embodiment, by providing a first mounting groove 301 in the swing member 3, it is convenient to assemble and disassemble the first magnet 4.

[0062] Specifically, the first mounting slot 301 has an opening through which the first magnet 4 can be installed and removed.

[0063] In one embodiment, the drive structure includes a solenoid valve 7 and a push rod 8. The push rod 8 is connected to the output end of the solenoid valve 7. When the solenoid valve 7 is not energized, the swing member 3 is in a first position under the action of gravity, and the push rod 8 abuts against the side of the swing member 3. After the solenoid valve 7 is energized, the push rod 8 pushes the swing member 3, causing the swing member 3 to swing toward a second position.

[0064] In this embodiment, when the solenoid valve 7 is not energized, the swing member 3 is in the first position under the action of gravity, and the push rod 8 abuts against the side of the swing member 3. After the solenoid valve 7 is energized, the push rod 8 pushes the swing member 3, and the direction of the force is perpendicular to the swing radius of the swing member 3. The lever arm is sufficient, and the solenoid valve 7 can drive the swing member 3 to swing around the axis 6 to the second position with a small thrust. The push rod 8 abuts against the side of the swing member 3 for driving, and the driving mechanism can be arranged in the unused space on the side of the swing member 3, making effective use of space.

[0065] In one specific embodiment, the solenoid valve 7 is disposed on the cover body 1014.

[0066] In one embodiment, when the swing member 3 is in the first position, the magnetic force between the first magnetic pole and the float magnet 201 causes the first exhaust valve assembly 2 to be in the closed position. When the swing member 3 is in the second position, the first magnetic pole is tilted and, under the action of gravity, the first exhaust valve assembly 2 is reset to the open position.

[0067] In this embodiment, when the solenoid valve 7 is not energized, the swinging component 3 remains in the first position under the action of gravity. At this time, the magnetic pole of the first magnet 4 is directly opposite the float magnet 201. The first exhaust valve assembly 2 is kept in the closed position by magnetic force. This is suitable for cooking, heat preservation and other working scenarios. The solenoid valve 7 does not need to be continuously energized. The solenoid valve 7 is energized only when pressure relief is needed. The push rod 8 pushes the swinging component 3 to the second position. The first magnet 4 tilts and loses magnetic force between the first magnet 4 and the float magnet 201. After losing magnetic force, the first exhaust valve assembly 2 automatically resets under the action of gravity and opens the first exhaust channel 1011 to quickly release the high-temperature steam in the pot. It fully relieves pressure before closing the lid in a hot state, greatly reduces the resistance to closing the lid, solves the problem of difficulty in closing the lid under high temperature and steam conditions, and improves the user's operating experience. Since the solenoid valve 7 is energized only during exhaust and pressure relief, and not energized during other operating conditions, the solenoid valve 7 is in a de-energized and static state for a long time. The coil generates less heat, which can avoid the hidden dangers of high temperature aging, insulation damage and short circuit caused by continuous energization, reduce the probability of electrical failure and extend the overall service life of the cooking equipment.

[0068] In an alternative embodiment, when the swing member 3 is in the first position, the magnetic force between the first magnetic pole and the float magnet 201 causes the first exhaust valve assembly 2 to be in the open position. When the swing member 3 is in the second position, the first magnetic pole is tilted and, under the action of gravity, the first exhaust valve assembly 2 is reset to the closed position.

[0069] In another alternative embodiment, an elastic element is provided between the float rod 202 and the cover 1. When the swing member 3 is in the second position, the first exhaust valve assembly 2 is reset to the open or closed position under the combined action of the elastic element and gravity.

[0070] In one embodiment, the push rod 8 is provided with a second magnet 9. When the swing member 3 is in the second position, the second magnet 9 and the float magnet 201 generate a repulsive force. Under the action of gravity and the repulsive force, the first exhaust valve assembly 2 is reset to the open position.

[0071] In this embodiment, considering that condensation, rice water, and other substances may remain on the inner lid 101 after cooking, causing the float rod 202 to stick to the first exhaust channel 1011, or that the steam pressure inside the pot may prevent the first exhaust valve assembly 2 from automatically resetting under gravity, a second magnet 9 is provided on the push rod 8. When the swing member 3 is in the second position, a repulsive force is generated between the second magnet 9 and the float magnet 201. The repulsive force is superimposed on the gravity, and the two forces work together to drive the first exhaust valve assembly 2 to reset quickly, and the first exhaust channel 1011 is quickly opened. The pressure relief rate can be further improved, and the lid 1 can be closed without pressing hard when the lid is hot, solving the problem of difficult lid closing and operation jamming under high temperature and steam conditions.

[0072] Specifically in one embodiment, such as Figure 2 As shown, the push rod 8 is provided with a second mounting groove 80221, and the second magnet 9 is embedded in the second mounting groove 80221.

[0073] In one specific embodiment, the magnetic pole at the lower end of the first magnet 4 is opposite to the magnetic pole at the upper end of the float magnet 201, while the magnetic pole at the lower end of the second magnet 9 is the same as the magnetic pole at the upper end of the float magnet 201.

[0074] In one embodiment, the push rod 8 is engaged with the output end of the solenoid valve 7.

[0075] In this embodiment, the push rod 8 is snapped into the output end of the solenoid valve 7, which can improve the assembly efficiency of the push rod 8 and the solenoid valve 7.

[0076] In one specific embodiment, a retaining ring is provided outside the output end of the solenoid valve 7, such as... Figure 9 As shown, the push rod 8 is provided with a slot 801, and the retaining ring is engaged in the slot 801.

[0077] In one embodiment, an elastic element may be provided between the connecting rod and the solenoid valve 7.

[0078] In this embodiment, when the solenoid valve 7 is energized, it generates electromagnetic force, which causes the output end of the solenoid valve 7 to move the connecting rod. When the solenoid valve 7 is de-energized, the elastic force of the elastic element can cause the output end of the solenoid valve 7 to move the connecting rod back to its original position.

[0079] In one embodiment, the cover assembly further includes a pressure cap 10, which is fixed to the cover body 1014 to limit the solenoid valve 7. Further reference... Figure 9 The pressure cap 10 or the pressure cap 10 and the cap body 1014 cooperate to form a first guide structure 1001, which is used to guide the movement of the push rod 8.

[0080] In this embodiment, the pressure cap 10 can not only fix and limit the electromagnet, but also guide the movement direction of the push rod 8, so that the push rod 8 can move smoothly and reduce movement resistance.

[0081] In one embodiment, such as Figure 14 and Figure 15 The cover 1 is also provided with a second exhaust channel 1016. The cover assembly also includes a second exhaust valve assembly, which is used to open or close the second exhaust channel 1016. The push rod 8 includes a first connecting arm 802 and a second connecting arm 803. The first connecting arm 802 abuts against the side of the swing member 3, and the second connecting arm 803 is adapted to drive the second exhaust valve assembly.

[0082] In this embodiment, the push rod 8 includes a first connecting arm 802 and a second connecting arm 803. The first connecting arm 802 abuts against the side of the swing member 3, and the second connecting arm 803 is adapted to drive the second exhaust valve assembly. When the solenoid valve 7 is energized to drive the push rod 8 to move, the first connecting arm 802 and the second connecting arm 803 move synchronously. The first connecting arm 802 pushes the swing member 3 to swing to the second position, and the first exhaust valve assembly 2 automatically resets to the open position, opening the first exhaust channel 1011. At the same time, the second connecting arm 803 drives the second exhaust valve assembly to open the second exhaust channel 1016. The steam in the pot cavity can be discharged through the first exhaust channel 1011 and the second exhaust channel 1016 at the same time, which can increase the exhaust speed and allow the steam in the pot cavity to be discharged quickly, avoiding difficulty in closing the lid when hot. When cooking is required, the solenoid valve 7 resets, causing the push rod 8 to reset, the first connecting arm 802 to retract, and the swing member 3 to reset to the first position. Under the action of magnetic force, the first exhaust valve assembly 2 closes the first exhaust valve channel. At the same time, the second connecting arm 803 retracts, and the second exhaust valve assembly closes the second exhaust valve channel, ensuring the pressure inside the pot cavity and enabling normal cooking. Therefore, a single solenoid valve 7 can simultaneously drive the first exhaust valve assembly 2 and the second exhaust valve assembly, resulting in a simple structure and convenient control of exhaust.

[0083] In one specific embodiment, the second connecting arm 803 is connected to a sealing ring 11, which can ensure a seal with the sidewall of the second exhaust channel 1016.

[0084] In one embodiment, the second exhaust passage 1016 includes an exhaust through-hole 10161, such as Figure 14 and Figure 15 As shown, the second exhaust valve assembly includes a ball valve 12, which is adapted to block or open the exhaust port 10161 under the drive of the drive assembly.

[0085] In this embodiment, when the ball valve 12 blocks the exhaust port 10161, steam cannot flow to the outlet port 1012 through the second exhaust channel 1016. When the ball valve 12 deviates from the exhaust port 10161, steam can flow to the steam chamber 1013 through the second exhaust channel 1016 and then to the outlet port 1012.

[0086] It should be noted that the specific structure of the second exhaust valve assembly and the second exhaust channel 1016 is not the focus of this embodiment, and will not be described in detail here.

[0087] In one specific embodiment, the first connecting arm 802 has a first horizontal portion 8021, a second horizontal portion 8022, and an inclined connecting portion 8023. The second horizontal portion 8022 is higher than the first horizontal portion 8021. The inclined connecting portion 8023 connects the first horizontal portion 8021 and the second horizontal portion 8022. The second horizontal portion 8022 abuts against the side of the swing member 3.

[0088] More specifically, such as Figure 5 As shown, the connecting part 10152 is provided with a second guide structure 10154, and the second horizontal part 8022 can move along the second guide structure 10154.

[0089] In one embodiment, the cover 1 further includes an inner cover reinforcing plate 102, which is fixed to the top of the inner cover 101.

[0090] According to an embodiment of the present invention, in another aspect, a cooking device is also provided, including the cover assembly for cooking devices provided in the above embodiments.

[0091] This cooking device features a swinging member 3 oscillatingly mounted on the lid 1. The swinging member 3 is equipped with a first magnet 4. When venting is required, the swinging member 3 is positioned in a first position, with the first magnetic pole of the first magnet 4 facing the float magnet 201. The magnetic force between the first magnetic pole and the float magnet 201 causes the first vent valve assembly 2 to be in an open position. At this time, the steam in the pot cavity can be quickly discharged through the first vent channel 1011, avoiding difficulty in closing the lid when it is hot. When cooking is required, the drive structure drives the swinging member 3 to swing to a second position, with the first magnetic pole tilted. The float magnet 201 loses the magnetic force of the first magnetic pole, and the first vent valve assembly 2 returns to the closed position, ensuring the pressure in the pot cavity and enabling normal cooking. Alternatively, when venting is required, the drive structure drives the swinging member 3 to swing to the second position, the first magnetic pole is tilted, the float magnet 201 loses the magnetic force of the first magnetic pole, and the first venting valve assembly 2 returns to the open position. At this time, the steam in the pot cavity can be quickly discharged through the first venting channel 1011, avoiding the difficulty of closing the lid when it is hot. When cooking is required, the swinging member 3 is made to swing to the first position, and the magnetic force between the first magnetic pole and the float magnet 201 causes the first venting valve assembly 2 to move to the closed position, ensuring the pressure in the pot cavity and realizing normal cooking. By setting a swinging member 3 to carry the first magnet 4, the drive structure only needs to output a small stroke to change the relative orientation of the first magnet 4 and the float magnet 201. Compared with related technologies, the first magnet 4 does not need to move a long distance in a straight line. Even if a solenoid valve 7 with a limited stroke is used as the drive structure, the switching of the swinging member 3 between the first position and the second position can be completed smoothly. This effectively solves the technical problem in related technologies that the solenoid valve 7 has a limited stroke and cannot reliably and smoothly control the opening and closing of the first exhaust valve assembly 2 and the first exhaust channel 1011, and reduces the stroke design requirements of the drive structure.

[0092] In one specific embodiment, the cooking device includes a rice cooker or an electric pressure cooker.

[0093] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A cover assembly for a cooking appliance, characterized in that, The cover assembly includes: The cover (1) is provided with a first exhaust channel (1011); The first exhaust valve assembly (2) has an open position for opening the first exhaust passage (1011) and a closed position for closing the first exhaust passage (1011), and the first exhaust valve assembly (2) includes a float magnet (201). The swing member (3) is provided with a first magnet (4), the first magnet (4) has a first magnetic pole, the swing member (3) is swingably disposed on the cover (1), the swing member (3) has a first position and a second position, in the first position, the first magnetic pole faces the float magnet (201), the magnetic force between the first magnetic pole and the float magnet (201) causes the first exhaust valve assembly (2) to be in one of the open position and the closed position, when the swing member (3) is in the second position, the first magnetic pole is tilted, the float magnet (201) loses the magnetic force of the first magnetic pole, and the first exhaust valve assembly (2) resets to the other of the open position and the closed position; The drive structure is capable of driving the swing member (3) to move between the first position and the second position.

2. The cover assembly for a cooking device according to claim 1, characterized in that, The cover (1) is connected to a fixed frame (5), and the swinging member (3) is hinged to the fixed frame (5) via a pivot (6).

3. The cover assembly for a cooking device according to claim 2, characterized in that, The fixing frame (5) includes a plate (501), a support mounting part (502) protruding from one side of the plate (501), and a hinge mounting part (503). The support mounting part (502) is fixedly connected to the cover (1). The swing member (3) is hinged to the hinge mounting part (503) through the pivot (6). The height of the support mounting part (502) is higher than that of the hinge mounting part (503), so that a space for accommodating the swing member (3) is formed below the plate (501).

4. The cover assembly for a cooking device according to claim 3, characterized in that, The cover (1) includes an inner cover (101), the inner cover (101) includes a cover body (1014) and a protruding structure (1015) provided on the cover body (1014), the protruding structure (1015) includes a main body (10151) and a connecting part (10152), the connecting part (10152) is lower than the main body (10151), the support mounting part (502) is connected to the connecting part (10152), and one end of the plate (501) away from the support mounting part (502) overlaps the main body (10151); The first exhaust valve assembly (2) is located below the connecting part (10152).

5. The cover assembly for a cooking device according to claim 4, characterized in that, The connecting part (10152) is provided with a stud (10153), and the supporting mounting part (502) is provided with a connecting hole (5022). The fastener passes through the connecting hole (5022) and is fastened in the stud (10153).

6. The cover assembly for a cooking apparatus according to any one of claims 1 to 5, characterized in that, The swing member (3) is provided with a first mounting groove (301), and the first magnet (4) is embedded in the first mounting groove (301).

7. The cover assembly for a cooking apparatus according to any one of claims 1 to 5, characterized in that, The drive structure includes a solenoid valve (7) and a push rod (8). The push rod (8) is connected to the output end of the solenoid valve (7). When the solenoid valve (7) is not energized, the swing member (3) is in the first position under the action of gravity. The push rod (8) abuts against the side of the swing member (3). After the solenoid valve (7) is energized, the push rod (8) pushes the swing member (3) so that the swing member (3) swings toward the second position.

8. The cover assembly for a cooking device according to claim 7, characterized in that, When the swing member (3) is in the first position, the magnetic force between the first magnetic pole and the float magnet (201) causes the first exhaust valve assembly (2) to be in the closed position. When the swing member (3) is in the second position, the first magnetic pole is tilted and, under the action of gravity, the first exhaust valve assembly (2) is reset to the open position.

9. The cover assembly for a cooking device according to claim 8, characterized in that, The push rod (8) is provided with a second magnet (9). When the swing member (3) is in the second position, the second magnet (9) and the float magnet (201) generate a repulsive force. Under the action of gravity and the repulsive force, the first exhaust valve assembly (2) is reset to the open position.

10. The cover assembly for a cooking appliance according to claim 7, characterized in that, The cover (1) is also provided with a second exhaust channel (1016). The cover (1) assembly also includes a second exhaust valve assembly, which is used to open or close the second exhaust channel (1016). The push rod (8) includes a first connecting arm (802) and a second connecting arm (803). The first connecting arm (802) abuts against the side of the swing member (3), and the second connecting arm (803) is adapted to drive the second exhaust valve assembly.

11. A cooking device, characterized in that, Includes the lid assembly for a cooking device according to any one of claims 1 to 10.

12. The cooking apparatus according to claim 11, characterized in that, The cooking equipment includes a rice cooker or an electric pressure cooker.

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