Cover assembly of cooking device and cooking device

Abstract

The utility model relates to domestic appliance technical field discloses the cover body subassembly and cooking equipment of cooking equipment, include: cover body is equipped with first exhaust passage, second exhaust passage, first exhaust valve subassembly is used for opening or closing first exhaust passage, second exhaust valve subassembly is used for opening or closing second exhaust passage, drive subassembly can drive second exhaust valve subassembly to open second exhaust passage while driving first exhaust valve subassembly to open first exhaust passage, or drive second exhaust valve subassembly to close second exhaust passage while driving first exhaust valve subassembly to close first exhaust passage. The utility model can increase the exhaust speed, and the steam of the pot inner cavity can be discharged quickly, avoids causing the difficulty of closing when hot.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to the cover assembly of a cooking device and the cooking device itself. Background Technology

[0002] Pressure rice cookers are popular in the market because they cook rice that is soft and fluffy. Pressure rice cookers generate a certain amount of pressure during the heating process, so the lid cannot be opened after the rice is cooked. You have to wait for the pressure to drop before you can open the lid.

[0003] The related technology discloses a pressure relief device for a low-pressure rice cooker, including a cooker body and a lid hinged to the cooker body. The lid includes a top cover, an inner cover, and a detachable component detachably connected to the inner cover. The inner cover has a solenoid valve with a push rod connected to one end. A sealing silicone sealant is provided between the push rod and the inner cover. The solenoid valve is connected to the control panel of the rice cooker. The detachable component has an anti-blocking seat, with an anti-blocking cover near the end of the anti-blocking seat close to the cooker body. Near the inner cover, the anti-blocking seat has a sealing steel ball seat and a safety device. The top of the sealing steel ball seat has a vent hole with a pressure steel ball. Multiple spaced protrusions are also provided on the top surface of the sealing steel ball seat. When not in operation, the push rod always pushes the pressure ball away from the vent hole. Placing the pressure relief device on the detachable component facilitates cleaning. In operation, the solenoid valve generates a pulling force, pulling the pressure steel ball back to the vent hole, blocking it, and increasing the pressure inside the cooker.

[0004] The aforementioned technologies use pressure steel balls to block or open the vent holes, but the area of ​​the vent holes is limited, and the gas inside the pot cannot be discharged quickly when it is hot, which can easily lead to difficulty in closing the lid or the lid not being able to be closed. Utility Model Content

[0005] This invention provides a lid assembly for a cooking device and a cooking device in order to solve the problem of gas not being able to escape quickly from the pot.

[0006] In a first aspect, this utility model provides a lid assembly for a cooking device, comprising: The cover is provided with a first exhaust channel and a second exhaust channel; A first exhaust valve assembly is used to open or close the first exhaust passage; The second exhaust valve assembly is used to open or close the second exhaust passage; The drive assembly is capable of simultaneously driving the first exhaust valve assembly to open the first exhaust passage and driving the second exhaust valve assembly to open the second exhaust passage, or simultaneously driving the first exhaust valve assembly to close the first exhaust passage and driving the second exhaust valve assembly to close the second exhaust passage.

[0007] Beneficial effects: When venting is required, the drive assembly simultaneously opens the first venting valve assembly and the second venting valve assembly, allowing steam in the pot cavity to escape through both venting channels. Compared to related technologies, this increases the venting speed, enabling rapid steam removal and preventing difficulty in closing the lid while the pot is hot. When cooking is required, the drive assembly simultaneously closes the first venting valve assembly and the second venting valve assembly, ensuring pressure within the pot cavity and facilitating normal cooking. Because the drive assembly can simultaneously operate both venting valves, its simple structure facilitates venting control.

[0008] In one optional embodiment, an air inlet is provided at the inlet of the first exhaust channel, and the first exhaust valve assembly includes a float rod, a float magnet disposed at one end of the float rod, and a sealing element disposed on the float rod; The driving component includes a driving structure and a magnet structure that is drively connected to the driving structure. The magnet structure has a first position and a second position under the drive of the driving structure. 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.

[0009] Beneficial effects: When the magnet structure is 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. When the magnet structure is 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. The float rod is moved by magnetic force, and the drive component does not need to contact the float rod, making the structure simpler and easier to drive.

[0010] In one alternative embodiment, the magnet structure is adapted to move along a first direction under the drive of the drive structure, the magnet structure including a connecting magnet having opposite magnetic poles at both ends along the first direction.

[0011] Beneficial effects: The magnet structure includes a connecting rod magnet, with opposite magnetic poles at both ends along the first direction. Only one connecting rod magnet is required, making the structure simpler.

[0012] In one alternative embodiment, the magnet structure includes a first magnet and a second magnet spaced apart, wherein the magnetic poles of the first magnet facing the end of the float magnet are opposite to the magnetic poles of the second magnet facing the end of the float magnet.

[0013] Beneficial effects: The magnet structure includes a first magnet and a second magnet arranged at intervals. The magnetic poles of the first magnet facing the float magnet are opposite to those of the second magnet facing the float magnet. Therefore, when the first magnet and the float magnet are facing each other, the magnetic force between them is opposite to that between the second magnet and the float magnet, thus driving the float rod to move. By setting the first magnet and the second magnet, the magnetic poles of the magnets can be accurately aligned, reducing the problem of the float rod getting stuck.

[0014] In one alternative embodiment, the drive structure includes an electromagnet connected to a connecting rod, the connecting rod having a second connecting arm and a first connecting arm, the magnet structure being disposed on the first connecting arm, and the second connecting arm being adapted to drive the second exhaust valve assembly.

[0015] Beneficial effects: The connecting rod has a second connecting arm and a first connecting arm. The magnet structure is located on the first connecting arm, and the second connecting arm is suitable for driving the second exhaust valve assembly. Therefore, when the electromagnet drives the connecting rod to move, it can simultaneously drive the magnet structure and the second connecting arm to move synchronously. The structure is simple and compact, which can avoid occupying a large space in the cover.

[0016] In one alternative embodiment, the first connecting arm is provided with a limiting hole, and the magnet structure is limited within the limiting hole.

[0017] Beneficial effect: By setting a limiting hole in the first connecting arm, it is convenient to position and install the magnet structure.

[0018] In one optional embodiment, a first limiting rib is provided in the limiting hole, and the first limiting rib is interference-fitted with the magnet structure.

[0019] Beneficial effect: By setting the first limiting rib in the limiting hole, the first limiting rib is interference-fitted with the magnet structure, so the magnet structure can be fixed in the limiting hole and prevented from falling out of the limiting hole.

[0020] In one optional embodiment, the cover is provided with a first guide structure for guiding the movement direction of the first connecting arm.

[0021] Beneficial effect: By setting the first guide structure in the cover, the smooth movement of the first connecting arm can be ensured.

[0022] In one alternative implementation, the first guide structure includes a first guide groove, and the first connecting arm is disposed in the first guide groove.

[0023] Beneficial effects: The first guide structure includes a first guide groove, which can guide the movement direction of the first connecting arm.

[0024] In one optional embodiment, the opening end of the limiting hole is located on one side of the first connecting arm, and the cover is provided with a limiting rib. The limiting rib is located on the side of the first connecting arm where the opening end is located, and the limiting rib forms a side wall of the first guide groove.

[0025] Beneficial effects: The opening end of the limiting hole is located on one side of the first connecting arm, and the cover is provided with a limiting rib. The limiting rib is located on the side of the first connecting arm with the opening end, and the limiting rib can prevent the magnet structure from coming out of the opening end of the limiting hole.

[0026] In one alternative embodiment, the cover assembly further includes a pressure plate fixed to the cover and a portion of the pressure plate extending above the first connecting arm.

[0027] Beneficial effects: The pressure plate is fixed to the cover and part of the pressure plate extends above the first connecting arm, so the pressure plate can play a limiting role above the first connecting arm.

[0028] In one optional embodiment, the pressure plate includes a first limiting plate extending above the first connecting arm and a second limiting plate extending below the first connecting arm, wherein the first limiting plate and the second limiting plate limit the vertical direction of the first connecting arm.

[0029] Beneficial effects: The pressure plate includes a first limiting plate extending above the first connecting arm and a second limiting plate extending below the first connecting arm. The first limiting plate and the second limiting plate limit the first connecting arm in the vertical direction, which can prevent the first connecting arm from swaying in the vertical direction. The cover does not need to have a structure to support the first connecting arm, which can simplify the structure of the cover assembly.

[0030] In one optional embodiment, the opening end of the limiting hole is located on one side of the first connecting arm, and at least a portion of the pressure plate is located on the side of the first connecting arm where the opening is located.

[0031] Beneficial effect: At least part of the pressure plate is located on the side of the first connecting arm with an opening, and the pressure plate can prevent the magnet structure from coming out of the opening end of the limiting hole.

[0032] In one optional embodiment, the pressure plate and the cover are positioned by a positioning structure. The positioning structure includes a positioning post and a positioning hole. The positioning post is located in one of the pressure plate and the cover, and the positioning hole is located in the other of the pressure plate and the cover. The positioning post is inserted into the positioning hole. And / or, the positioning structure includes a first positioning rib, a second positioning rib, and a third positioning rib, wherein the first positioning rib and the second positioning rib are disposed opposite to each other, the pressure plate is located between the first positioning rib and the second positioning rib, and the pressure plate is supported above the third positioning rib.

[0033] Beneficial effects: The positioning structure allows for proper positioning of the pressure plate and cover, improving assembly efficiency and ensuring correct installation. A positioning post is located on one of the pressure plate and cover, while a positioning hole is located on the other. Inserting the positioning post into the positioning hole positions the pressure plate, effectively improving assembly efficiency. The positioning structure includes a first positioning rib, a second positioning rib, and a third positioning rib. The first and second positioning ribs are positioned opposite each other, with the pressure plate confined between them and supported above the third positioning rib. This positioning mechanism further enhances assembly efficiency.

[0034] In one optional embodiment, the pressure plate is provided with one of a second limiting rib and a limiting groove, and the cover is provided with the other of a second limiting rib and a limiting groove, wherein the second limiting rib and the limiting groove are engaged and inserted into each other.

[0035] Beneficial effects: The pressure plate is provided with one of the second limiting ribs and the limiting groove, and the cover is provided with the other of the second limiting ribs and the limiting groove. The second limiting ribs and the limiting groove are interlocked, which can further position and install the pressure plate, improve the assembly efficiency of the pressure plate, and ensure the correct assembly of the pressure plate.

[0036] In one alternative embodiment, the connecting rod is engaged with the push rod of the electromagnet; And / or, an elastic element is provided between the connecting rod and the electromagnet.

[0037] Beneficial effects: The engagement between the connecting rod and the electromagnet's push rod improves the assembly efficiency of the connecting rod and the electromagnet. When the electromagnet is energized, it generates electromagnetic force, causing the electromagnet's push rod to move the connecting rod. When the electromagnet is de-energized, the elastic force of the elastic element allows the electromagnet's push rod to return the connecting rod to its original position.

[0038] In one alternative embodiment, the second exhaust passage includes an exhaust orifice, and the second exhaust valve assembly includes a ball valve adapted to block or open the exhaust orifice under the actuation of the drive assembly.

[0039] Beneficial effects: When the ball valve blocks the exhaust port, steam cannot be discharged through the second exhaust channel. When the ball valve deviates from the exhaust port, steam can flow into the steam chamber through the second exhaust channel and then into the exhaust port.

[0040] Secondly, this utility model also provides a cooking device, including the cover assembly of the cooking device.

[0041] Beneficial effects: When venting is required, this cooking device simultaneously drives the first vent valve assembly to open the first vent channel and the second vent valve assembly to open the second vent channel. Steam inside the pot cavity can flow to the vent through both vent channels simultaneously. Compared to related technologies, this increases the venting speed, allowing steam to escape quickly and preventing difficulty in closing the lid. When cooking is required, the drive assembly simultaneously drives the first vent valve assembly to close the first vent channel and the second vent valve assembly to close the second vent channel, ensuring pressure inside the pot cavity and enabling normal cooking. Because the drive assembly can simultaneously drive both vent valve assemblies, the structure is simple and facilitates venting control.

[0042] In one alternative implementation, the cooking device is a rice cooker or an electric pressure cooker. Attached Figure Description

[0043] To more clearly illustrate the specific embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0044] Figure 1 This is an exploded view of the cover assembly of a cooking device according to an embodiment of the present utility model; 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 This is a schematic diagram of a lid assembly of a cooking device according to an embodiment of the present utility model; Figure 5 for Figure 4 Enlarged view of point C in the middle; Figure 6 This is a schematic diagram of the pressure plate; Figure 7 This is a top view of a lid assembly of a cooking device according to an embodiment of the present utility model; Figure 8 A lid assembly of a cooking device according to an embodiment of this utility model. Figure 7 A three-dimensional sectional view at section AA; Figure 9 This is a cross-sectional view of a cooking device according to an embodiment of the present invention when the first exhaust valve assembly opens the first exhaust channel; Figure 10 for Figure 9 Enlarged view of point D in the middle; Figure 11 This is a cross-sectional view of a cooking device according to an embodiment of the present invention when the first exhaust valve assembly closes the first exhaust channel; Figure 12 for Figure 11 Enlarged view at point E in the middle; Figure 13 A schematic diagram of a lid assembly for a cooking device in an alternative embodiment; Figure 14 An exploded view of the lid assembly of a cooking device in an alternative embodiment; Figure 15 for Figure 14 Enlarged view at point F; Figure 16 A cross-sectional view of a cooking appliance in an alternative embodiment when the first exhaust valve assembly closes the first exhaust passage; Figure 17 A cross-sectional view of a cooking appliance in an alternative embodiment when the first exhaust valve assembly opens the first exhaust passage; Figure 18 This is a cross-sectional view of a cooking device according to an embodiment of the present invention at the second exhaust valve assembly.

[0045] Explanation of reference numerals in the attached figures: 1. Inner cover; 101. Cover body; 102. Protruding structure; 103. First guide structure; 104. Threaded hole; 105. Positioning post; 106. First positioning rib; 107. Second positioning rib; 108. Third positioning rib; 109. Second limiting rib; 110. Limiting rib plate; 2. First exhaust valve assembly; 201. Float rod; 202. Float magnet; 203. Sealing element; 2031. Annular body part; 2032. First annular sealing part; 2033. Second annular sealing part; 204. Magnet cover; 3. Electromagnet; 301. Push rod; 302. Snap ring; 4. Connecting rod; 400. First connecting rod 401. Connecting arm; 402. First horizontal section; 403. Second horizontal section; 404. Bending section; 405. Connecting body; 406. Limiting hole; 407. First limiting rib; 408. Second connecting arm; 5. Air outlet; 6. Steam chamber; 8. Pressure cap; 801. Second guide structure; 9. Elastic element; 10. Pressure plate; 1001. Screw hole; 1002. First limiting plate; 1003. Second limiting plate; 1004. Positioning hole; 1005. Limiting groove; 11. Cover plate; 1101. Air inlet; 12. Pot inner cavity; 13. Connecting rod magnet; 14. First magnet; 15. Second magnet; 16. Ball valve. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0047] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model according to the specific circumstances.

[0049] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0050] The following is combined Figures 1 to 18 The following describes embodiments of the present invention.

[0051] According to an embodiment of the present invention, in one aspect, a cover assembly for a cooking device is provided, including a cover, a first exhaust valve assembly 2, a second exhaust valve assembly, and a drive assembly.

[0052] The cover is provided with a first exhaust channel and a second exhaust channel; the first exhaust valve assembly 2 is used to open or close the first exhaust channel; the second exhaust valve assembly is used to open or close the second exhaust channel; the drive assembly can drive the second exhaust valve assembly to open the second exhaust channel while driving the first exhaust valve assembly 2 to open the first exhaust channel, or drive the second exhaust valve assembly to close the second exhaust channel while driving the first exhaust valve assembly 2 to close the first exhaust channel.

[0053] In this embodiment, when venting is required, the drive assembly simultaneously drives the first vent valve assembly 2 to open the first vent passage and the second vent valve assembly to open the second vent passage. Steam in the pot cavity 12 can be discharged simultaneously through both the first and second vent passages. Compared to related technologies, this increases the venting speed, allowing steam in the pot cavity 12 to be discharged quickly and preventing difficulty in closing the lid when hot. When cooking is required, the drive assembly simultaneously drives the first vent valve assembly 2 to close the first vent passage and the second vent valve assembly to close the second vent passage, ensuring pressure in the pot cavity 12 and enabling normal cooking. Because the drive assembly can simultaneously drive the first vent valve assembly 2 and the second vent valve assembly, the structure is simple and facilitates venting control.

[0054] In one specific embodiment, the cover is provided with an air outlet 5, and a steam chamber 6 is formed inside the cover. The steam chamber 6 is connected to the air outlet 5, and both the first exhaust channel and the second exhaust channel are connected to the steam chamber 6.

[0055] In one specific embodiment, the cover includes an inner cover 1 and a cover plate 11. The cover plate 11 is disposed on the side of the inner cover 1 near the inner cavity 12 of the pot. The cover plate 11 and the inner cover 1 form a steam chamber 6, and the vent 5 is located at the top of the steam chamber 6.

[0056] In one embodiment, an air inlet 1101 is provided at the inlet of the first exhaust channel, and the air inlet 1101 is connected to the inner cavity 12 of the pot. The first exhaust valve assembly 2 is adapted to open or block the air inlet 1101 under the drive of the drive assembly.

[0057] In this embodiment, when the first exhaust valve assembly 2 opens the air inlet 1101, steam can enter the first exhaust channel through the air inlet 1101 and then be discharged through the air outlet 5. When the first exhaust valve assembly 2 blocks the air inlet 1101, steam cannot enter the first exhaust channel.

[0058] In one specific embodiment, the cover includes an inner cover 1 and a cover plate 11. The cover plate 11 is disposed on the side of the inner cover 1 near the inner cavity 12 of the pot, and the air inlet 1101 is disposed on the cover plate 11.

[0059] In one embodiment, an air inlet 1101 is provided at the inlet of the first exhaust channel. The first exhaust valve assembly 2 includes a float rod 201, a float magnet 202 disposed at one end of the float rod 201, and a seal 203 disposed on the float rod 201. The drive assembly includes a drive structure and a magnet structure that is driveably connected to the drive structure. The magnet structure has a first position and a second position under the drive of the drive structure. In the first position, the magnetic force between the magnet structure and the float magnet 202 causes the float rod 201 to move so that the seal 203 opens the air inlet 1101. In the second position, the magnetic force between the magnet structure and the float magnet 202 causes the float rod 201 to move so that the seal 203 closes the air inlet 1101.

[0060] In this embodiment, when the magnet structure is in the first position, the magnetic force between the magnet structure and the float magnet 202 causes the float rod 201 to move so that the seal 203 opens the air inlet 1101. When the magnet structure is in the second position, the magnetic force between the magnet structure and the float magnet 202 causes the float rod 201 to move so that the seal 203 closes the air inlet 1101. The float rod 201 is moved by magnetic force, and the drive component does not need to contact the float rod 201, making the structure simpler and easier to drive.

[0061] In one specific embodiment, when the magnet structure is in the first position, the repulsive force between the magnet structure and the float magnet 202 causes the float rod 201 to move downward so that the seal 203 opens the air inlet 1101. When the magnet structure is in the second position, the magnetic attraction between the magnet structure and the float magnet 202 causes the float rod 201 to move upward so that the seal 203 closes the air inlet 1101.

[0062] In one specific embodiment, an annular mounting groove is provided near the lower end of the float rod 201, and a seal 203 is installed in the mounting groove, with a portion of the seal 203 protruding outside the mounting groove. When the seal 203 abuts against the lower end of the air inlet 1101, the seal 203 blocks the air inlet 1101.

[0063] Specifically in one embodiment, such as Figure 10As shown, the seal 203 includes an annular main body 2031, a first annular sealing portion 2032 and a second annular sealing portion 2033 disposed on the outer periphery of the annular main body 2031. The first annular sealing portion 2032 extends obliquely upward, and the second annular sealing portion 2033 extends obliquely downward. An angle is formed between the first annular sealing portion 2032 and the second annular sealing portion 2033, and a gap exists between them. When the magnet structure is in the second position, the magnetic attraction between the magnet structure and the float magnet 202 causes the float rod 201 to move upward, thereby causing the seal 203 to move upward. The first annular sealing portion 2032 abuts against and deforms with the cover plate 11 in the area around the air inlet, thereby sealing the air inlet. Because an angle is formed between the first annular sealing portion 2032 and the second annular sealing portion 2033, and a gap exists between them, the first annular sealing portion 2032 is more likely to deform, thus ensuring sealing performance.

[0064] In one embodiment, the magnet structure is adapted to move along a first direction under the drive of the drive structure, and the magnet structure includes a connecting magnet 13, the connecting magnet 13 having opposite magnetic poles at both ends along the first direction.

[0065] In this embodiment, the magnet structure is adapted to move along a first direction under the drive of the driving structure. The magnet structure includes a connecting magnet 13, which has opposite magnetic poles at both ends along the first direction. Only one connecting magnet 13 is provided, making the structure simpler.

[0066] In one specific embodiment, the connecting rod magnet 13 moves horizontally under the drive of the driving structure, and the magnetic poles of the connecting rod magnet 13 are opposite at both ends along the horizontal direction.

[0067] More specifically, such as Figures 9 to 12 As shown, the right end of the connecting rod magnet 13 is the S pole, the left end of the connecting rod magnet 13 is the N pole, and the upper end of the float magnet 202 is the N pole. When the right end of the connecting rod magnet 13 is directly opposite the upper end of the float magnet 202, the magnetic attraction between the connecting rod magnet 13 and the float magnet 202 causes the float rod 201 to move upward so that the seal 203 closes the air inlet 1101. When the left end of the connecting rod magnet 13 is directly opposite the upper end of the float magnet 202, the repulsive force between the connecting rod magnet 13 and the float magnet 202 causes the float rod 201 to move downward so that the seal 203 opens the air inlet 1101.

[0068] In one embodiment, such as Figures 14 to 17 As shown, the magnet structure includes a first magnet 14 and a second magnet 15 arranged at intervals. The magnetic poles of the first magnet 14 facing the end of the float magnet 202 are opposite to the magnetic poles of the second magnet 15 facing the end of the float magnet 202.

[0069] In this embodiment, the magnet structure includes a first magnet 14 and a second magnet 15 spaced apart. The magnetic poles of the first magnet 14 facing the float magnet 202 are opposite to those of the second magnet 15 facing the float magnet 202. Therefore, the magnetic force between the first magnet 14 and the float magnet 202 is opposite to that between the second magnet 15 and the float magnet 202 when they are facing each other, thus driving the float rod 201 to move. By setting the first magnet 14 and the second magnet 15, the magnetic poles of the magnets can be accurately aligned, reducing the problem of the float rod 201 getting stuck.

[0070] In one specific embodiment, the upper end of the float magnet 202 is the N pole, the lower end of the first magnet 14 is the S pole, and the lower end of the second magnet 15 is the N pole. When the first magnet 14 is directly opposite the float magnet 202, the magnetic attraction between the first magnet 14 and the float magnet 202 causes the float rod 201 to move upward so that the seal 203 closes the air inlet 1101. When the second magnet 15 is directly opposite the float magnet 202, the repulsive force between the second magnet 15 and the float magnet 202 causes the float rod 201 to move downward so that the seal 203 opens the air inlet 1101.

[0071] In one embodiment, the driving structure includes an electromagnet 3 connected to a connecting rod 4, the connecting rod 4 having a second connecting arm 406 and a first connecting arm 400, a magnet structure disposed on the first connecting arm 400, and the second connecting arm 406 being adapted to drive the second exhaust valve assembly.

[0072] In this embodiment, the connecting rod 4 has a second connecting arm 406 and a first connecting arm 400. The magnet structure is located on the first connecting arm 400, and the second exhaust valve assembly is located on the second connecting arm 406. Therefore, when the electromagnet 3 drives the connecting rod 4 to move, it can simultaneously drive the magnet structure and the second connecting arm 406 to move synchronously. The structure is simple and compact, which can avoid occupying a large space inside the cover.

[0073] In one specific embodiment, the cover includes an inner cover 1, the inner cover 1 includes a cover body 101 and a protruding structure 102 disposed on the cover body 101; the first exhaust valve assembly 2 is disposed below the protruding structure 102, the first connecting arm 400 includes a first horizontal part 401, a second horizontal part 402 and a bent part 403, the first horizontal part 401 is close to the drive structure, the second horizontal part 402 is movably disposed on the protruding structure 102, and the bent part 403 connects the first horizontal part 401 and the second horizontal part 402.

[0074] In this embodiment, the first exhaust valve assembly 2 is located below the protruding structure 102. The first connecting arm 400 includes a first horizontal part 401, a second horizontal part 402, and a bent part 403. The first horizontal part 401 is close to the drive structure, and the second horizontal part 402 is movably located on the protruding structure 102. This can make full use of the space inside the cover assembly and reduce the overall thickness of the cover assembly.

[0075] In one specific embodiment, the electromagnet 3 is fixed to the cover body by screws and a pressure cap 8.

[0076] More specifically, the cover includes an inner cover 1, and a pressure cap 8 is connected to the inner cover 1 by screws. The pressure cap 8 limits the position of the electromagnet 3.

[0077] In one embodiment, the pressure cap 8 is fixed to the cover body 101 to limit the electromagnet 3. The pressure cap 8 or the pressure cap 8 and the cover body 101 cooperate to form a second guide structure 801, which is used to guide the movement of the first horizontal part 401.

[0078] In this embodiment, by providing a second guide structure 801, the movement of the first horizontal part 401 can be guided, which can further enable the connecting rod 4 to move smoothly and reduce movement resistance.

[0079] In one specific embodiment, the pressure cap 8 itself has a second guide structure 801.

[0080] Specifically, the connecting rod 4 includes a connecting body 404 connected to the push rod 301 of the electromagnet 3, and the second connecting arm 406 and the first connecting arm 400 are both connected to the connecting body 404.

[0081] In one embodiment, the first connecting arm 400 is provided with a limiting hole 405, and the magnet structure is limited in the limiting hole 405.

[0082] In this embodiment, the positioning and installation of the magnet structure is facilitated by providing a limiting hole 405 in the first connecting arm 400.

[0083] Specifically in one embodiment, such as Figure 9 and Figure 11 As shown, the magnet structure moves horizontally under the drive of the drive structure. The magnet structure includes a connecting rod magnet 13, which has opposite magnetic poles at both ends in the horizontal direction. A limiting hole 405 is provided, and the connecting rod magnet 13 is disposed in the limiting hole 405.

[0084] Specifically in one embodiment, such as Figure 14 and Figure 16As shown, the magnet structure includes a first magnet 14 and a second magnet 15 spaced apart. The magnetic poles of the first magnet 14 facing the float magnet 202 are opposite to those of the second magnet 15 facing the float magnet 202. Two limiting holes 405 are correspondingly provided, with the first magnet 14 placed in one limiting hole 405 and the second magnet 15 placed in the other limiting hole 405. Alternatively, only one limiting hole 405 can be provided, with both the first magnet 14 and the second magnet 15 placed within this limiting hole 405 and spaced apart.

[0085] In one embodiment, a first limiting rib 4051 is provided in the limiting hole 405, and the first limiting rib 4051 is interference-fitted with the magnet structure.

[0086] In this embodiment, by providing a first limiting rib 4051 in the limiting hole 405, the first limiting rib 4051 is interference-fitted with the magnet structure, thus the magnet structure can be fixed in the limiting hole 405 to prevent the magnet structure from falling out of the limiting hole 405.

[0087] In one embodiment, the cover is provided with a first guide structure 103, which is used to guide the movement direction of the first connecting arm 400.

[0088] In this embodiment, by providing a first guide structure 103 on the cover, the smooth movement of the first connecting arm 400 can be ensured.

[0089] In one specific embodiment, the first guide structure 103 includes a first guide groove, and the first connecting arm 400 is disposed in the first guide groove.

[0090] In this embodiment, the first guide structure 103 includes a first guide groove, which can guide the movement direction of the first connecting arm 400.

[0091] In one embodiment, the opening end of the limiting hole 405 is located on one side of the first connecting arm 400, such as... Figure 15 As shown, the cover is provided with a limiting rib plate 110, which is located on the side of the first connecting arm 400 with an open end, and the limiting rib plate 110 forms a side wall of the first guide groove.

[0092] In this embodiment, the opening end of the limiting hole 405 is located on one side of the first connecting arm 400, and the cover is provided with a limiting rib 110. The limiting rib 110 is located on the side of the first connecting arm 400 with the opening end, and the limiting rib 110 can prevent the magnet structure from coming out of the opening end of the limiting hole 405.

[0093] In one embodiment, the cover assembly further includes a pressure plate 10, which is fixed to the cover and a portion of the pressure plate 10 extends above the first connecting arm 400.

[0094] In this embodiment, the pressure plate 10 is fixed to the cover and a portion of the pressure plate 10 extends above the first connecting arm 400, and the pressure plate 10 can play a limiting role above the first connecting arm 400.

[0095] In one specific embodiment, the pressure plate 10 is connected to the cover by screws.

[0096] Specifically, the pressure plate 10 is provided with screw holes 1001, and the cover is provided with threaded holes 104. Screws pass through the screw holes 1001 and are tightened in the threaded holes 104 to fix the pressure plate 10.

[0097] In other alternative embodiments, the pressure plate 10 and the cover can be connected by snap-fit.

[0098] In one embodiment, such as Figure 6 As shown, the pressure plate 10 includes a first limiting plate 1002 extending above the first connecting arm 400 and a second limiting plate 1003 extending below the first connecting arm 400. The first limiting plate 1002 and the second limiting plate 1003 limit the vertical direction of the first connecting arm 400.

[0099] In this embodiment, the pressure plate 10 includes a first limiting plate 1002 extending above the first connecting arm 400 and a second limiting plate 1003 extending below the first connecting arm 400. The first limiting plate 1002 and the second limiting plate 1003 limit the first connecting arm 400 in the vertical direction, which can prevent the first connecting arm 400 from shaking in the vertical direction. The cover does not need to have a structure to support the first connecting arm 400, which can simplify the structure of the cover assembly.

[0100] In one embodiment, such as Figure 13 As shown, the pressure plate 10 may only include a first limiting plate 1002 extending above the first connecting arm 400, and the cover is formed with a first guide groove, the bottom of which can limit the lower part of the first connecting arm 400.

[0101] In one embodiment, the opening end of the limiting hole 405 is located on one side of the first connecting arm 400, and at least part of the pressure plate 10 is located on the side of the first connecting arm 400 where the opening is located.

[0102] In this embodiment, at least part of the pressure plate 10 is located on the side of the first connecting arm 400 where the opening is provided, and the pressure plate 10 can prevent the magnet structure from coming out of the opening end of the limiting hole 405.

[0103] In one embodiment, the pressure plate 10 and the cover are positioned by a positioning structure.

[0104] In this embodiment, the pressure plate 10 and the cover are positioned by a positioning structure, which can improve the assembly efficiency of the pressure plate 10 and ensure that the pressure plate 10 is installed correctly.

[0105] In one embodiment, the positioning structure includes a positioning post 105 and a positioning hole 1004. The positioning post 105 is disposed in one of the pressure plate 10 and the cover, and the positioning hole 1004 is disposed in the other of the pressure plate 10 and the cover. The positioning post 105 is inserted into the positioning hole 1004. And / or, the positioning structure includes a first positioning rib 106, a second positioning rib 107 and a third positioning rib 108. The first positioning rib 106 and the second positioning rib 107 are disposed opposite to each other. The pressure plate 10 is limited between the first positioning rib 106 and the second positioning rib 107, and the pressure plate 10 is supported above the third positioning rib 108.

[0106] In this embodiment, a positioning post 105 is disposed on one of the pressure plate 10 and the cover, and a positioning hole 1004 is disposed on the other of the pressure plate 10 and the cover. The positioning post 105 is inserted into the positioning hole 1004, which can position the assembly of the pressure plate 10, effectively improving assembly efficiency. The positioning structure includes a first positioning rib 106, a second positioning rib 107, and a third positioning rib 108. The first positioning rib 106 and the second positioning rib 107 are arranged opposite to each other. The pressure plate 10 is limited between the first positioning rib 106 and the second positioning rib 107, and the pressure plate 10 is supported above the third positioning rib 108, which can position the assembly of the pressure plate 10, effectively improving assembly efficiency.

[0107] Specifically in one embodiment, such as Figure 5 and Figure 6 As shown, the cover is provided with a positioning post 105, and the pressure plate 10 is provided with a positioning hole 1004, through which the positioning post 105 passes.

[0108] Specifically in one embodiment, such as Figure 14 and Figure 15 As shown, the cover is provided with a first positioning rib 106, a second positioning rib 107 and a third positioning rib 108. The first positioning rib 106 and the second positioning rib 107 are arranged opposite to each other. The pressure plate 10 is located between the first positioning rib 106 and the second positioning rib 107, and the pressure plate 10 is supported above the third positioning rib 108.

[0109] In one embodiment, the pressure plate 10 is provided with one of the second limiting rib 109 and the limiting groove 1005, and the cover structure is provided with the other of the second limiting rib 109 and the limiting groove 1005, and the second limiting rib 109 and the limiting groove 1005 are engaged and inserted.

[0110] In this embodiment, the pressure plate 10 is provided with one of the second limiting rib 109 and the limiting groove 1005, and the cover is provided with the other of the second limiting rib 109 and the limiting groove 1005. The second limiting rib 109 and the limiting groove 1005 are engaged and inserted to further position and install the pressure plate 10, improve the assembly efficiency of the pressure plate 10, and ensure that the pressure plate 10 is correctly assembled.

[0111] Specifically in one embodiment, such as Figure 5 and Figure 6 As shown, the pressure plate 10 is provided with a limiting groove 1005, the opening of the limiting groove 1005 faces downward, and the cover is provided with a second limiting rib 109. The pressure plate 10 is installed from top to bottom, so that the limiting groove 1005 is locked on both sides of the second limiting rib 109. When the bottom of the limiting groove 1005 abuts against the top of the second limiting rib 109, the pressure plate 10 is installed in place in the vertical direction.

[0112] Specifically, the second limiting rib 109 extends in the vertical direction, and the plate surface of the second limiting rib 109 is parallel to the moving direction of the first connecting arm 400.

[0113] In one embodiment, the top end of the float rod 201 is connected to a magnet cover 204 by a thread, and the float magnet 202 is located between the magnet cover 204 and the float rod 201.

[0114] In this embodiment, a magnet cover 204 is threadedly connected to the top of the float rod 201, and the float magnet 202 is located between the magnet cover 204 and the float rod 201. The magnet cover and the float rod 201 cooperate to fix the float magnet 202.

[0115] In an alternative embodiment, the magnet cover may be omitted, and a groove may be provided at the top of the float rod 201, in which the float magnet 202 is embedded. Alternatively, the float magnet 202 may be glued to the top of the float rod 201.

[0116] In one embodiment, the connecting rod 4 is engaged with the push rod 301 of the electromagnet 3.

[0117] In this embodiment, the connecting rod 4 is engaged with the push rod 301 of the electromagnet 3, which can improve the assembly efficiency of the connecting rod 4 and the electromagnet 3.

[0118] In one specific embodiment, the push rod 301 is provided with a retaining ring 302, and the connecting rod 4 is provided with a retaining groove, and the retaining ring 302 is engaged in the retaining groove.

[0119] In one embodiment, an elastic element 9 is provided between the connecting rod 4 and the electromagnet 3.

[0120] In this embodiment, when the electromagnet 3 is energized, it generates electromagnetic force, which causes the push rod 301 of the electromagnet 3 to move the connecting rod 4. When the electromagnet 3 is de-energized, the elastic force of the elastic element 9 can cause the push rod 301 of the electromagnet 3 to move the connecting rod 4 back to its original position.

[0121] In one specific embodiment, the elastic element 9 is a spring.

[0122] In one embodiment, the second exhaust passage includes an exhaust through-hole, such as Figure 18 As shown, the second exhaust valve assembly includes a ball valve 16, which is adapted to block or open the exhaust port under the drive of the drive assembly.

[0123] In this embodiment, when the ball valve 16 blocks the exhaust port, steam cannot flow to the outlet port 5 through the second exhaust channel. When the ball valve 16 deviates from the exhaust port, steam can flow to the steam chamber 6 through the second exhaust channel and then to the outlet port 5.

[0124] It should be noted that the specific structure of the second exhaust valve assembly and the second exhaust passage is not the focus of this embodiment, and will not be described in detail here.

[0125] According to an embodiment of the present invention, another aspect provides a cooking device including the cover assembly provided in the above embodiment.

[0126] When venting is required, this cooking device simultaneously drives the first vent valve assembly 2 to open the first vent passage and the second vent valve assembly to open the second vent passage. Steam inside the pot cavity 12 can flow to the vent 5 through both the first and second vent passages. Compared to related technologies, this increases the venting speed, allowing steam inside the pot cavity 12 to be quickly expelled and preventing difficulty in closing the lid. When cooking is required, the drive assembly simultaneously drives the first vent valve assembly 2 to close the first vent passage and the second vent valve assembly to close the second vent passage, ensuring pressure inside the pot cavity 12 and enabling normal cooking. Because the drive assembly can simultaneously drive both the first and second vent valve assemblies, the structure is simple and facilitates venting control.

[0127] In one specific embodiment, the cooking device is a rice cooker or an electric pressure cooker.

[0128] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A lid assembly for a cooking appliance, characterized in that, include: The cover is provided with a first exhaust channel and a second exhaust channel; The first exhaust valve assembly (2) is used to open or close the first exhaust passage; The second exhaust valve assembly is used to open or close the second exhaust passage; The drive assembly is capable of driving the second exhaust valve assembly to open the second exhaust passage while driving the first exhaust valve assembly (2) to open the first exhaust passage, or driving the second exhaust valve assembly to close the second exhaust passage while driving the first exhaust valve assembly (2) to close the first exhaust passage.

2. The lid assembly of the cooking apparatus according to claim 1, characterized in that, The first exhaust channel is provided with an air inlet (1101) at the entrance. The first exhaust valve assembly (2) includes a float rod (201), a float magnet (202) provided at one end of the float rod (201), and a sealing member (203) provided on the float rod (201). The driving component includes a driving structure and a magnet structure that is drively connected to the driving structure. The magnet structure has a first position and a second position under the drive of the driving structure. In the first position, the magnetic force between the magnet structure and the float magnet (202) causes the float rod (201) to move so that the seal (203) opens the air inlet (1101). In the second position, the magnetic force between the magnet structure and the float magnet (202) causes the float rod (201) to move so that the seal (203) closes the air inlet (1101).

3. The lid assembly of the cooking apparatus according to claim 2, characterized in that, The magnet structure is adapted to move along a first direction under the drive of the drive structure, and the magnet structure includes a connecting magnet (13) with opposite magnetic poles at both ends along the first direction.

4. The lid assembly of the cooking apparatus according to claim 2, characterized in that, The magnet structure includes a first magnet (14) and a second magnet (15) spaced apart. The magnetic pole of the first magnet (14) facing the float magnet (202) is opposite to the magnetic pole of the second magnet (15) facing the float magnet (202).

5. The lid assembly of the cooking apparatus according to any one of claims 2 to 4, characterized in that, The driving structure includes an electromagnet (3), which is connected to a connecting rod (4). The connecting rod (4) has a second connecting arm (406) and a first connecting arm (400). The magnet structure is located on the first connecting arm (400), and the second connecting arm (406) is adapted to drive the second exhaust valve assembly.

6. The lid assembly of the cooking apparatus according to claim 5, characterized in that, The first connecting arm (400) is provided with a limiting hole (405), and the magnet structure is limited in the limiting hole (405).

7. The lid assembly of the cooking apparatus according to claim 6, characterized in that, The limiting hole (405) is provided with a first limiting rib (4051), and the first limiting rib (4051) is interference-fitted with the magnet structure.

8. The lid assembly of the cooking apparatus according to claim 6, characterized in that, The cover is provided with a first guide structure (103), which is used to guide the movement direction of the first connecting arm (400).

9. The lid assembly of the cooking apparatus according to claim 8, characterized in that, The first guide structure (103) includes a first guide groove, and the first connecting arm (400) is disposed in the first guide groove.

10. The lid assembly of the cooking apparatus according to claim 9, characterized in that, The opening end of the limiting hole (405) is located on one side of the first connecting arm (400), and the cover is provided with a limiting rib (110). The limiting rib (110) is located on the side of the first connecting arm (400) where the opening end is located, and the limiting rib (110) constitutes a side wall of the first guide groove.

11. The lid assembly of the cooking apparatus according to claim 6, characterized in that, The cover assembly also includes a pressure plate (10) fixed to the cover and a portion of the pressure plate (10) extending above the first connecting arm (400).

12. The lid assembly of the cooking apparatus according to claim 11, characterized in that, The pressure plate (10) includes a first limiting plate (1002) extending above the first connecting arm (400) and a second limiting plate (1003) extending below the first connecting arm (400). The first limiting plate (1002) and the second limiting plate (1003) limit the vertical direction of the first connecting arm (400).

13. The lid assembly of the cooking apparatus according to claim 11, characterized in that, The opening end of the limiting hole (405) is located on one side of the first connecting arm (400), and at least part of the pressure plate (10) is located on the side of the first connecting arm (400) where the opening is located.

14. The lid assembly of the cooking apparatus according to claim 11, characterized in that, The pressure plate (10) and the cover are positioned by a positioning structure; The positioning structure includes a positioning post (105) and a positioning hole (1004). The positioning post (105) is located in one of the pressure plate (10) and the cover, and the positioning hole (1004) is located in the other of the pressure plate (10) and the cover. The positioning post (105) is inserted into the positioning hole (1004). And / or, the positioning structure includes a first positioning rib (106), a second positioning rib (107) and a third positioning rib (108), the first positioning rib (106) and the second positioning rib (107) are disposed opposite to each other, the pressure plate (10) is located between the first positioning rib (106) and the second positioning rib (107), and the pressure plate (10) is supported above the third positioning rib (108).

15. The lid assembly of the cooking apparatus according to claim 11, characterized in that, The pressure plate (10) is provided with one of a second limiting rib (109) and a limiting groove (1005), and the cover is provided with the other of a second limiting rib (109) and a limiting groove (1005). The second limiting rib (109) and the limiting groove (1005) are engaged and inserted.

16. The lid assembly of the cooking apparatus according to any one of claims 6 to 15, characterized in that, The connecting rod (4) is engaged with the push rod (301) of the electromagnet (3); And / or, an elastic element (9) is provided between the connecting rod (4) and the electromagnet (3).

17. The lid assembly of the cooking apparatus according to any one of claims 1 to 4, 6 to 15, characterized in that, The second exhaust passage includes an exhaust orifice, and the second exhaust valve assembly includes a ball valve (16) adapted to block or open the exhaust orifice under the drive of the drive assembly.

18. A cooking device, characterized in that, The lid assembly of the cooking apparatus as described in any one of claims 1 to 17.

19. The cooking apparatus according to claim 18, characterized in that, The cooking equipment is a rice cooker or an electric pressure cooker.

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