Cooking utensil

Abstract

The embodiment of the utility model belongs to the kitchen appliance technology, and provides a cooking utensil, which comprises a box body, a heating device, a heating device and a control device, and is characterized in that the box body is provided with a cooking cavity; the fan device is provided with a first air cavity, and the first air cavity is communicated with the cooking cavity; the filtering device is provided with a second air cavity, a mounting opening is formed in the first side of the filtering device, the mounting opening communicates with the second air cavity, and the fan device is inserted into the mounting opening; the sealing structure is located between the filtering device and the fan device; the sealing structure comprises a body connected with the filtering device, and the body is arranged around the inner wall of the mounting opening; the fins surround the side, facing the fan device, of the body, make contact with the fan device and deform under the action of the fan device and the body. According to the cooking utensil provided by the embodiment of the invention, the sealing performance of the connecting position of the fan device and the filtering device is relatively good, and the mounting convenience is relatively good.

Description

Cooking utensils Technical Field

[0001] This application relates to the field of kitchen appliance technology, and more particularly to a cooking appliance. Background Technology

[0002] Cooking appliances, such as ovens or steam ovens, can produce a lot of fumes during the cooking process. These fumes are located inside the oven cavity, and when the user opens the oven door, the fumes escape, polluting the environment.

[0003] In related technologies, cooking appliances include a housing, a fan unit, and a filter unit. The housing has a cooking chamber, and under the action of the fan unit, the cooking fumes can enter the filter unit. The filter unit filters the fumes, thereby reducing environmental pollution.

[0004] However, the connection between the fan unit and the filter unit is poorly sealed, making it easy for oil fumes to leak out, and the installation is not very convenient. Summary of the Invention

[0005] This application provides a cooking appliance with good sealing at the connection point between the fan device and the filter device, and good ease of installation.

[0006] In a first aspect, embodiments of this application provide a cooking utensil, including:

[0007] The cabinet has a cooking cavity.

[0008] A fan device, which has a first air chamber connected to the cooking chamber;

[0009] The filter device has a second air chamber and a mounting opening on the first side of the filter device. The mounting opening is connected to the second air chamber and a fan device is inserted into the mounting opening.

[0010] A sealing structure is located between the filter unit and the fan unit; the sealing structure includes:

[0011] The main body is connected to the filter device, and the main body is arranged around the inner wall of the installation opening;

[0012] The fins are wrapped around the body on the side facing the fan device. The fins are in contact with the fan device and deform under the action of the fan device and the body.

[0013] The cooking appliance provided in this embodiment is based on the principle that the external force required for local deformation is less than that required for overall deformation. The sealing structure consists of a body and fins. The body is connected to the filter device and is arranged around the inner wall of the installation opening. The fins are arranged around the side of the body facing the filter device and are in contact with the fan device. Under the action of the fan device and the body, the fins deform. In this way, the deformation of the fins fills the gap, the external force required for the fan device installation is small, and the fins produce a large amount of deformation under a small external force, thus resulting in a better sealing effect.

[0014] In some embodiments of this application, there is a gap between the inner wall of the body and the outer wall of the fan device, and the size of the fins is larger than the gap between the body and the fan device along the direction from the inner wall of the body to the outer wall of the fan device.

[0015] There is a gap between the inner wall of the main body and the outer wall of the fan unit. This allows the fan unit to be easily inserted into the main body during installation. The fan unit simply needs to deform its fins to seal the gap between the main body and the fan unit. This makes installation of the fan unit relatively convenient. The fin size is larger than the gap between the main body and the fan unit, which helps to improve the sealing effect.

[0016] In some embodiments of this application, the fan device and the filter device are arranged along the depth direction of the housing. The cross-section along the depth direction shows that the dimension of the fins along the height direction of the housing is greater than the gap dimension between the inner wall of the main body and the outer wall of the fan device, and the value of the gap dimension is greater than 0.2 mm and less than 0.5 mm.

[0017] When the difference between the fin's height along the housing and the gap is less than 0.2 mm, the deformable dimension is small, which is detrimental to improving sealing performance. When the difference between the fin's height along the housing and the gap is greater than 0.5 mm, the required deformation dimension during installation is larger, the force required during installation is greater, and the ease of installation is poor.

[0018] In some embodiments of this application, the fin dimensions increase in the width direction from the end closer to the fan device to the end farther from the fan device.

[0019] Near one end of the fan assembly, the fin has a width dimension greater than 0.2 mm and less than 0.8 mm.

[0020] The width direction is from the first side to the second side, the second side is the side of the filter device away from the fan device, and the second side is opposite to the first side.

[0021] In this way, the fins near the fan end are more prone to deformation, which facilitates installation and improves sealing. When the fin dimension along the width direction is less than 0.2mm near the fan end, the fins are more difficult to process and are more easily damaged. When the fin dimension along the width direction is greater than 0.8mm near the fan end, the force required to deform the fins is greater, the force required during installation is greater, and the ease of installation is poor.

[0022] In some embodiments of this application, the dimension of the fin near the fan device along the width direction is greater than one-seventh of the dimension of the fin away from the fan device along the width direction, and the dimension of the fin near the fan device along the width direction is less than one-third of the dimension of the fin away from the fan device along the width direction.

[0023] When the width dimension of the fin near the fan is less than one-seventh of the width dimension of the fin away from the fan, the width dimension of the fin near the fan is small, and the fin is easily damaged. When the width dimension of the fin near the fan is greater than one-third of the width dimension of the fin away from the fan, the width dimension of the fin near the fan is large, requiring greater force during installation and resulting in poor installation convenience.

[0024] In some embodiments of this application, the dimension of the fin along the width direction is smaller than the dimension of the body along the width direction;

[0025] Along the width direction, the fins are located in the middle region of the body.

[0026] In this way, compared to the fins being located at the ends, the fins being located in the middle area of ​​the body along the width direction is beneficial to ensuring that the area of ​​the fins filling the gap between the body and the fan device after deformation is larger.

[0027] In some embodiments of this application, the main body is fitted onto the inner wall of the installation opening, with a portion of the main body located inside the second air cavity and the remainder of the main body located outside the second air cavity.

[0028] In this way, the connection between the main body and the filter device is highly reliable, and the sealing structure is not easy to fall off.

[0029] In some embodiments of this application, a first limiting structure is provided on the first side of the filter device, and a second limiting structure matching the first limiting structure is provided on the main body, with the second limiting structure correspondingly connected to the first limiting structure.

[0030] This helps ensure the accuracy of the sealing structure's installation position.

[0031] In some embodiments of this application, the body is provided with a first chamfered portion, which is arranged around the inner wall of the mounting opening;

[0032] The fan unit has a second chamfer at the end near the filter unit.

[0033] This facilitates the installation of the fan unit and improves installation efficiency.

[0034] Secondly, embodiments of this application provide a cooking utensil, including:

[0035] The cabinet has a cooking cavity.

[0036] A fan device, which has a first air chamber connected to the cooking chamber;

[0037] The filter device has a second air chamber and a mounting opening on its first side, which communicates with the second air chamber. A fan device is inserted into the mounting opening, and the filter device and the fan device are slidably connected.

[0038] A sealing structure is located between the filter unit and the fan unit; the sealing structure includes:

[0039] The main body is connected to the filter device, and the main body is arranged around the inner wall of the installation opening;

[0040] Fins, which surround the body on the side facing the fan assembly, are configured to elastically deform and seal the gap between the body and the fan assembly.

[0041] In this way, when the filter and fan move relative to each other, the fins can continuously seal the gap between the fin filler body and the fan under the action of elasticity, thereby improving the sealing effect of the sealing structure and extending its service life. Attached Figure Description

[0042] Figure 1 is a front view of the cooking utensil provided in an embodiment of this application;

[0043] Figure 2 is a schematic diagram of the structure of the cooking appliance provided in the embodiment of this application after removing the door and part of the cabinet;

[0044] Figure 3 is a structural schematic diagram of Figure 2 from another angle;

[0045] Figure 4 is a top view of Figure 2;

[0046] Figure 5 is a cross-sectional view along direction AA in Figure 4;

[0047] Figure 6 is a magnified view of part B in Figure 5;

[0048] Figure 7 is a schematic diagram of the sealing structure in the cooking appliance provided in the embodiment of this application;

[0049] Figure 8 is a cross-sectional view of Figure 7;

[0050] Figure 9 is a magnified view of part C in Figure 8;

[0051] Figure 10 is a schematic diagram of the sealing structure and filter housing in the cooking appliance provided in the embodiment of this application;

[0052] Figure 11 is a schematic diagram of the fan device in the cooking appliance provided in the embodiment of this application;

[0053] Figure 12 is an exploded view of Figure 11;

[0054] Figure 13 is a schematic diagram of the structure of the fixed bracket in the cooking utensil provided in the embodiment of this application;

[0055] Figure 14 is a schematic diagram of the fan housing in the cooking appliance provided in the embodiment of this application;

[0056] Figure 15 is a structural schematic diagram of Figure 14 from another angle;

[0057] Figure 16 is a cross-sectional view of the fan device in the cooking appliance provided in the embodiment of this application;

[0058] Figure 17 is a magnified view of part D in Figure 16;

[0059] Figure 18 is a front view of the fan housing in the cooking appliance provided in the embodiment of this application;

[0060] Figure 19 is a schematic diagram of the structure of the fan cover in the cooking appliance provided in the embodiment of this application;

[0061] Figure 20 is a schematic diagram of the structure of the fan bottom shell in the cooking appliance provided in the embodiment of this application;

[0062] Figure 21 is a schematic diagram of the structure of the buffer seat assembly in the cooking appliance provided in the embodiment of this application;

[0063] Figure 22 is a schematic diagram of the connecting device in the cooking utensil provided in the embodiment of this application;

[0064] Figure 23 is a cross-sectional view along the EE direction in Figure 4;

[0065] Figure 24 is a magnified view of a portion of point F in Figure 23;

[0066] Figure 25 is a schematic diagram of the structure of the filtering device and the linear drive device in the cooking appliance provided in the embodiment of this application;

[0067] Figure 26 is a structural schematic diagram of Figure 25 from another angle;

[0068] Figure 27 is an exploded view of Figure 25;

[0069] Figure 28 is a schematic diagram of the structure of the first bottom shell and filter module in the cooking appliance provided in the embodiment of this application;

[0070] Figure 29 is a structural schematic diagram of Figure 28 from another angle;

[0071] Figure 30 is a cross-sectional view of the filter device in the cooking appliance provided in the embodiment of this application when it is in the first state;

[0072] Figure 31 is a cross-sectional view of the filter device in the cooking appliance provided in the embodiment of this application when it is in the second state;

[0073] Figure 32 is a cross-sectional view of the filter device in the cooking appliance provided in the embodiment of this application when it is in the third state;

[0074] Figure 33 is a schematic diagram of the structure of the filter housing in the cooking appliance provided in the embodiment of this application;

[0075] Figure 34 is a structural schematic diagram of Figure 33 from another angle;

[0076] Figure 35 is a magnified view of a portion of point G in Figure 28;

[0077] Figure 36 is a schematic diagram of the contact spring and the second bottom shell in the cooking appliance provided in the embodiment of this application;

[0078] Figure 37 is a schematic diagram of the contact spring in the cooking appliance provided in the embodiment of this application;

[0079] Figure 38 is a structural schematic diagram of Figure 37 from another angle;

[0080] Figure 39 is a schematic diagram of the linear drive device in the cooking appliance provided in the embodiment of this application;

[0081] Figure 40 is a schematic diagram of the linear drive device in Figure 39 after removing part of the outer shell and tray;

[0082] Figure 41 is a schematic diagram of the flow of oil fumes and external air in the cooking appliance provided in the embodiment of this application;

[0083] Figure 42 is a schematic diagram of the flow of oil in the cooking appliance provided in the embodiment of this application.

[0084] Explanation of reference numerals in the attached figures:

[0085] 100-Box body; 110-Outer shell; 120-Inner liner; 121-Second opening; 122-Oil baffle structure; 200-Door; 300-Fan unit; 310-Cooling component; 311-First opening; 320-Fixed bracket; 321-First connecting structure; 330-Fan shell; 331-Second connecting structure; 3311-Air inlet; 332-Mounting structure; 333-Return flow structure; 334-Connecting structure; 335-Fan bottom shell; 3351-First mounting part; 336-Fan upper shell; 3361-Second mounting part; 340-Fan; 350-Buffer seat assembly; 351-Damping component; 3511-Damping body; 3512-First limiting part; 3513-Second limiting part; 352-Mass component; 400-Connecting device; 410-Driver; 420-Third fixed seat; 430-First fixed seat; 440-First connecting rod; 450-Second connecting rod; 460-Connector; 470-Second fixed seat; 480-Cover; 500-Filter device; 510-Mounting opening; 520-First limiting structure; 530-Filter housing; 531-Handle structure; 532-First bottom shell; 5321-First smoke outlet; 5322-Second smoke outlet Smoke outlet; 533-First upper cover; 5331-Third smoke outlet; 534-Third clearance opening; 535-Second clearance opening; 536-Fourth clearance opening; 540-Filter module; 541-First contact; 542-Second contact; 543-First anti-slip part; 544-Second anti-slip part; 550-High voltage transformer; 560-Fixed outer shell; 561-Fifth opening; 562-Second bottom shell; 563-Second upper cover; 564-First clearance opening; 565-Assembly structure; 570-Cover plate; 580-Contact spring; 581-Fixing part; 582-First arc-shaped part; 583-First straight part; 584-Second arc-shaped portion; 585-Second straight portion; 586-Through opening; 587-Forming; 600-Sealing structure; 610-Body; 611-First connecting portion; 612-Second connecting portion; 613-Third connecting portion; 614-Second limiting structure; 615-First chamfered portion; 620-Fin; 700-Linear drive device; 710-Drive housing; 711-Outer housing; 712-Bracket; 7121-First connecting plate; 7122-Second connecting plate; 720-Linear drive assembly; 730-Sensing element; 740-Sensor; 750-Connecting rod; 760-Tray. Detailed Implementation

[0086] The fan unit and filter unit are connected by an insertion ring, which is usually located at the insertion point. During installation, the sealing ring is mounted on the filter unit's housing, and the fan unit's housing is inserted inside the sealing ring. In other words, the sealing ring is located between the fan unit and the filter unit, thus sealing the gap between them. However, if the sealing ring is compressed to a greater degree, a larger force needs to be applied during filter unit installation, resulting in less ease of installation. If the sealing ring is compressed to a lesser degree, the sealing effect is poor.

[0087] To address the aforementioned technical problems, this application provides a cooking appliance based on the principle that the external force required for local deformation is less than that required for overall deformation. The sealing structure comprises a body and fins. The body is connected to a filter device and is arranged around the inner wall of the mounting opening. The fins surround the side of the body facing the filter device, contacting the fan device and deforming under the action of the fan device and the body. In this way, the deformation of the fins seals the gap, requiring less external force for fan device installation, and the fins generate a larger amount of deformation under a smaller external force, resulting in a better sealing effect.

[0088] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0089] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0090] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0091] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0092] This application provides a cooking appliance, which can be an oven, microwave oven, or steam oven, etc.

[0093] Figure 1 is a front view of the cooking appliance provided in an embodiment of this application. Figure 2 is a structural schematic diagram of the cooking appliance provided in an embodiment of this application after removing the door and part of the cabinet. Figure 3 is a structural schematic diagram of Figure 2 from another angle.

[0094] Referring to Figures 1 to 3, in some embodiments, the cooking appliance includes a housing 100. The housing 100 is provided with a cooking cavity.

[0095] In some embodiments, the housing 100 includes an outer shell 110, which serves both protective and aesthetic purposes.

[0096] In some embodiments, the housing 100 includes an inner liner 120, which has a cooking cavity for holding food. The inner liner 120 is located inside the outer housing 110, and the space between the outer wall of the inner liner 120 and the inner wall of the outer housing 110 can provide installation space for other devices.

[0097] In some embodiments, the top of the inner liner 120 is provided with a second opening 121, which communicates with the cooking cavity. The second opening 121 is used to communicate with the exhaust duct. The fumes in the cooking cavity flow to the outside of the outer casing 110 through the exhaust duct, thereby purifying the fumes and reducing environmental pollution.

[0098] In some embodiments, the smoke exhaust duct includes a cooling component 310 of a fan device 300, a fan housing 330 of the fan device 300, and a filter device 500 connected in sequence.

[0099] Referring to Figure 1, in some embodiments, the cooking appliance includes a door 200. The door 200 is rotatably connected to the housing 100, and the door 200 rotates relative to the housing 100 to open or close the cooking cavity.

[0100] Referring to Figures 2 and 3, in some embodiments, the cooking appliance includes a fan device 300.

[0101] In some embodiments, the fan device 300 may be in communication with the inner liner 120. The fan device 300 is used to draw oil fumes from the inner liner 120 into the fan device 300.

[0102] In some embodiments, the fan device 300 may be selectively connected to the inner liner 120. That is, when there is little or no oil fume in the inner liner 120, the fan device 300 is not connected to the inner liner 120. When there is a lot of oil fume in the inner liner 120 and oil fume exhaust is required, the fan device 300 is connected to the inner liner 120.

[0103] In some embodiments, the fan device 300 is provided with a first air chamber for communicating with the cooking cavity. In some embodiments, the fan device 300 is located at the top of the inner liner 120.

[0104] In some embodiments, the cooking appliance includes a connecting device 400. The connecting device 400 is used to control whether the fan device 300 is connected to or disconnected from the inner pot 120. Specifically, the connecting device 400 is located on top of the inner pot 120.

[0105] In some embodiments, the cooking appliance includes a filter device 500. Driven by a fan device 300, cooking fumes in the inner liner 120 flow through the fan device 300 to the filter device 500. The filter device 500 captures and removes contaminants from the cooking fumes, and then discharges the treated air to the outside of the housing 100.

[0106] In some embodiments, the filter device 500 includes a filter element manufactured based on the principle of a strong field dielectric. In some embodiments, the filter device 500 includes a filter element manufactured based on the principle of activated carbon, metal mesh, glass fiber, or high-efficiency particulate air filter. In some embodiments, the filter device 500 is located at the top of the inner liner 120.

[0107] Figure 5 is a cross-sectional view along direction AA in Figure 4, and Figure 6 is a magnified view of part B in Figure 5.

[0108] Referring to Figures 5 and 6, in some embodiments, the filter device 500 is provided with a second air cavity, and a mounting opening 510 is provided on the first side of the filter device 500, which communicates with the second air cavity. The mounting opening 510 is used to mount the fan device 300. The fan device 300 is inserted into the mounting opening 510.

[0109] Referring to Figures 5 and 6, in some embodiments, the cooking appliance includes a sealing structure 600. The sealing structure 600 is located between the filter device 500 and the fan device 300.

[0110] Figure 7 is a schematic diagram of the sealing structure in the cooking appliance provided in the embodiment of this application.

[0111] Referring to Figures 6 and 7, the sealing structure 600 includes a body 610. The body 610 is connected to the filter device 500 and is arranged around the inner wall of the mounting opening 510.

[0112] In some embodiments, the sealing structure 600 includes fins 620. The fins 620 surround the body 610 on the side facing the fan device 300, the fins 620 are in contact with the fan device 300, and the fins 620 are deformed under the action of the fan device 300 and the body 610.

[0113] The cooking appliance provided in this embodiment includes a housing 100, a fan device 300, a filter device 500, and a sealing structure 600. The sealing structure 600 includes a body 610 and fins 620. The body 610 is connected to the filter device 500 and is arranged around the inner wall of the mounting opening 510. The fins 620 surround the body 610 on the side facing the filter device 500 and contact the fan device 300, deforming under the action of the fan device 300 and the body 610. Thus, by filling the gaps with the deformation of the fins 620, the external force required for the installation of the fan device 300 is relatively small, and the fins 620 generate a large amount of deformation under a small external force, thereby achieving a better sealing effect.

[0114] In some embodiments, the filter device 500 and the fan device 300 are slidably connected, and the sealing structure 600 includes a body 610 and fins 620.

[0115] The main body 610 is connected to the filter device 500, and the main body 610 is arranged around the inner wall of the mounting opening 510. The fins 620 are arranged around the side of the main body 610 facing the fan device 300, and the fins 620 are in contact with the fan device 300. The fins 620 are configured to elastically deform and seal the gap between the main body 610 and the fan device 300.

[0116] The cooking appliance provided in this embodiment includes a housing 100, a fan device 300, a filter device 500, and a sealing structure 600. The filter device 500 and the fan device 300 are slidably connected. The sealing structure 600 includes a body 610 and fins 620. The body 610 is connected to the filter device 500 and is arranged around the inner wall of the mounting opening 510. The fins 620 surround the body 610 on the side facing the filter device 500 and contact the fan device 300. The fins 620 undergo elastic deformation, sealing the gap between the body 610 and the fan device 300. Thus, when the filter device 500 and the fan device 300 move relative to each other, the fins 620 can continuously seal the gap between the body 610 and the fan device 300 under the action of elasticity, thereby improving the sealing effect of the sealing structure 600 and extending its service life.

[0117] In some embodiments, the sealing structure 600 may be made of rubber or silicone, etc.

[0118] Referring to Figure 6, in some embodiments of this application, there is a gap between the inner wall of the body 610 and the outer wall of the fan device 300. Along the direction from the inner wall of the body 610 to the outer wall of the fan device 300, the size of the fins 620 is larger than the gap between the body 610 and the fan device 300.

[0119] The direction from the inner wall of the body 610 to the outer wall of the fan device 300 is the direction shown by the Z-axis in the figure.

[0120] Understandably, there is a gap between the inner wall of the body 610 and the outer wall of the fan device 300. This allows the fan device 300 to be easily inserted into the body 610 during installation. The fan device 300 only needs to deform the fins 620 to seal the gap between the body 610 and the fan device 300. This makes installation of the fan device 300 convenient. The size of the fins 620 is larger than the gap between the body 610 and the fan device 300, which helps improve the sealing effect. Moreover, when the fan device 300 is slidably connected to the filter device 500, the relative sliding between the fan device 300 and the filter device 500 prevents the fins 620 from failing and affecting the sealing performance.

[0121] Figure 8 is a cross-sectional view of Figure 7, and Figure 9 is a magnified view of part C in Figure 8.

[0122] Referring to Figures 8 and 9, in some embodiments of this application, the fan device 300 and the filter device 500 are arranged along the depth direction of the housing 100. The depth direction of the housing 100 is the direction shown by the Y-axis in the figures.

[0123] In the cross-section along the depth direction, the height dimension of fin 620 along the housing 100 is greater than the gap dimension between the inner wall of the body 610 and the outer wall of the fan device 300. The height dimension of housing 100 is in the direction shown by the Z-axis in the figure. Specifically, the value by which the height dimension of fin 620 along the housing 100 exceeds the gap dimension is greater than 0.2 mm and less than 0.5 mm. That is, the interference dimension on one side of fin 620 is greater than 0.2 mm and less than 0.5 mm.

[0124] In some embodiments, the height dimension of the fin 620 along the housing 100 is greater than the gap dimension by 0.3 mm, 0.35 mm, or 0.4 mm.

[0125] When the height dimension of fin 620 along the housing 100 is less than 0.2mm greater than the gap dimension, the deformable dimension is small, which is not conducive to improving the sealing performance. When the height dimension of fin 620 along the housing 100 is greater than 0.5mm greater than the gap dimension, the dimension that needs to be deformed during installation is large, the force required during installation is large, and the ease of installation is poor.

[0126] It should be noted that in some embodiments, the fan device 300 and the filter device 500 are arranged along the width direction of the housing 100. Alternatively, the arrangement direction of the fan device 300 and the filter device 500 forms an angle with both the width direction and the depth direction of the housing 100. The width direction of the housing 100 is the direction shown by the X-axis in the figure, and the depth direction of the housing 100 is the direction shown by the Y-axis in the figure.

[0127] Referring to Figures 8 and 9, in some embodiments of this application, the dimension of the fin 620 increases along the width direction from the end near the fan device 300 to the end away from the fan device 300. Specifically, at the end near the fan device 300, the dimension of the fin 620 along the width direction is greater than 0.2 mm and less than 0.8 mm. The width direction is the direction from the first side to the second side, where the second side is the side of the filter device 500 facing away from the fan device 300, and is opposite to the first side.

[0128] It should be noted that the direction from the end closer to the fan assembly 300 to the end farther from the fan assembly 300 is the direction shown by the Z-axis in the figure. The width direction of the fin 620 is the direction shown by the Y-axis in the figure.

[0129] Understandably, the fins 620 increase in width from the end closest to the fan assembly 300 to the end furthest from the fan assembly 300. This makes the fins 620 closer to the fan assembly 300 more prone to deformation, thus facilitating installation and improving sealing.

[0130] In some embodiments, the fins 620 near the end of the fan device 300 have a width dimension of 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, or 0.7 mm, etc.

[0131] When the fin 620 is less than 0.2 mm in width direction near one end of the fan assembly 300, the fin 620 is difficult to process and is easily damaged. When the fin 620 is greater than 0.8 mm in width direction near one end of the fan assembly 300, the force required to deform the fin 620 is greater, the force required to apply during installation is greater, and the ease of installation is poor.

[0132] In some embodiments of this application, the dimension of the fin 620 in the width direction at the end near the fan device 300 is greater than one-seventh of the dimension of the fin 620 in the width direction at the end away from the fan device 300, and the dimension of the fin 620 in the width direction at the end near the fan device 300 is less than one-third of the dimension of the fin 620 in the width direction at the end away from the fan device 300.

[0133] In some embodiments, the dimension of the fin 620 in the width direction at the end near the fan device 300 is one-quarter, one-fifth, or one-sixth of the dimension of the fin 620 in the width direction at the end away from the fan device 300.

[0134] When the width-direction dimension of the end of fin 620 near the fan assembly 300 is less than one-seventh of the width-direction dimension of the end of fin 620 away from the fan assembly 300, the width-direction dimension of the end of fin 620 near the fan assembly 300 is small, and fin 620 is easily damaged. When the width-direction dimension of the end of fin 620 near the fan assembly 300 is greater than one-third of the width-direction dimension of the end of fin 620 away from the fan assembly 300, the width-direction dimension of the end of fin 620 near the fan assembly 300 is large, requiring greater force during installation and resulting in poor installation convenience. It should be noted that the width direction refers to the direction shown by the Y-axis in the figure.

[0135] In some embodiments of this application, the dimension of the fin 620 along the width direction is smaller than the dimension of the body 610 along the width direction. Along the width direction, the fin 620 is located in the middle region of the body 610. The width direction is the direction shown by the Y-axis in the figure.

[0136] The central region of the body 610 is the area between its two ends along the width direction. Specifically, the fin 620 is located in the central region of the body 610, and the fin 620 and the body 610 have a centrally symmetrical structure. It can be understood that compared to the fin 620 being located at the ends, the fin 620 being located in the central region of the body 610 along the width direction is beneficial to ensuring that the area of ​​the fin 620 sealing the gap between the body 610 and the fan device 300 after deformation is larger.

[0137] Figure 10 is a schematic diagram of the sealing structure and filter housing in the cooking appliance provided in the embodiment of this application.

[0138] Referring to Figures 6 and 10, in some embodiments of this application, the body 610 is fitted onto the inner wall of the mounting opening 510, with a portion of the body 610 located inside the second air cavity and the remainder located outside the second air cavity. This ensures a high degree of reliability in the connection between the body 610 and the filter device 500, and prevents the sealing structure 600 from easily detaching.

[0139] In some embodiments, the filter device 500 includes a filter housing 530, and a mounting opening 510 is provided at one end of the filter housing 530.

[0140] Specifically, the body 610 includes a first connecting portion 611, a second connecting portion 612, and a third connecting portion 613 connected sequentially. The second connecting portion 612 is located between the first connecting portion 611 and the third connecting portion 613. The extending plane of the first connecting portion 611 is parallel to the extending plane of the second connecting portion 612. The extending plane of the first connecting portion 611 is parallel to the extending plane of the end wall of the filter housing 530 where the mounting opening 510 is provided. The side of the first connecting portion 611 facing the third connecting portion 613 abuts against the outer wall surface of the end wall of the filter housing 530 where the mounting opening 510 is provided. The side of the third connecting portion 613 facing the first connecting portion 611 abuts against the inner wall surface of the end wall of the filter housing 530 where the mounting opening 510 is provided. The outer wall of the second connecting portion 612 abuts against the inner wall of the mounting opening 510.

[0141] The first connecting portion 611 and the third connecting portion 613 are flat. A through hole is provided in the middle region of the first connecting portion 611, the second connecting portion 612, and the third connecting portion 613, allowing them to communicate with each other. Specifically, a fin 620 is disposed on the inner wall of the second connecting portion 612.

[0142] In some embodiments of this application, a first limiting structure 520 is provided on the first side of the filter device 500, and a second limiting structure 614 matching the first limiting structure 520 is provided on the body 610. The second limiting structure 614 is correspondingly connected to the first limiting structure 520. This helps to ensure the accuracy of the installation position of the sealing structure 600.

[0143] In some embodiments, one of the first limiting structure 520 and the second limiting structure 614 is a limiting protrusion, and the other is a limiting groove that matches the limiting protrusion. Specifically, the end wall of the filter housing 530 with the mounting opening 510 is provided with a limiting post. The first connecting portion 611 is provided with a limiting hole that matches the limiting post. The limiting post is inserted into the limiting hole. Specifically, the limiting post can be a cylinder. The limiting hole is a circular hole.

[0144] In some embodiments, there are multiple first limiting structures 520 and second limiting structures 614, for example, four. The multiple first limiting structures 520 and multiple second limiting structures 614 are arranged in a one-to-one correspondence. The multiple first limiting structures 520 are spaced apart. The multiple second limiting structures 614 are spaced apart.

[0145] Referring to Figures 6 and 7, in some embodiments of this application, the body 610 is provided with a first chamfered portion 615, which surrounds the inner wall of the mounting opening 510. Specifically, the first chamfered portion 615 is located at the end of the body 610, thereby facilitating the installation of the fan device 300.

[0146] In some embodiments, the fan assembly 300 has a second chamfer at one end near the filter device 500. Specifically, the second chamfer is located at the end of the fan housing 330 of the fan assembly 300, thereby facilitating the installation of the fan assembly 300.

[0147] During installation, the end of the fan housing 330 with the second chamfer is inserted into the body 610 along the first chamfer 615 at one end of the body 610.

[0148] Figure 11 is a structural schematic diagram of the fan device in the cooking appliance provided in the embodiment of this application. Figure 12 is an exploded view of Figure 11.

[0149] The specific structure of the fan unit 300 is described below.

[0150] Referring to Figures 11 and 12, in some embodiments, the fan assembly 300 includes a cooling element 310. The cooling element 310 increases the flow path of the fumes, thereby helping to reduce the temperature of the fumes.

[0151] The cooling component 310 is configured to be connected to or not connected to the inner liner 120. The cooling component 310 is located at the top of the inner liner 120. The cooling component 310 has a first opening 311. The first opening 311 is connected to a second opening 121.

[0152] Figure 13 is a schematic diagram of the structure of the fixed support in the cooking utensil provided in the embodiment of this application.

[0153] Referring to Figure 13, in some embodiments, the fan assembly 300 includes a mounting bracket 320. The mounting bracket 320 is used to mount the fan housing. The mounting bracket 320 can be connected to the housing 100.

[0154] The fixed bracket 320 is located at the top of the cooling component 310. A first connecting structure 321 is provided at the bottom of the fixed bracket 320. The first connecting structure 321 is inserted into the cooling component 310 and is connected to it.

[0155] Specifically, the outer wall of the first connecting structure 321 abuts against the inner wall of the cooling component 310. This helps to prevent oil fumes from spreading to the outside through the gap between the first connecting structure 321 and the cooling component 310.

[0156] Figure 14 is a structural schematic diagram of the fan housing in the cooking appliance provided in the embodiment of this application, and Figure 15 is a structural schematic diagram of Figure 14 from another angle.

[0157] Referring to Figures 14 and 15, in some embodiments, the fan assembly 300 includes a fan housing 330.

[0158] The fan housing 330 is located on top of the fixed bracket 320. The fan housing 330 is also located on top of the cooling component 310. The fan housing 330 is connected to the cooling component 310.

[0159] The fan 340 is located inside the fan housing 330. Under the action of the fan 340, the fumes in the cooking cavity flow through the cooling element 310, the fan housing 330, and the filter device 500 to the outside of the outer housing 110. The cooling element 310 is configured to reduce the temperature of the fumes. The cooling element 310 is located at the top of the inner liner 120 so that at least a portion of the grease condensed from the fumes in the exhaust channel flows back to the inner liner 120 along the inner wall of the cooling element 310 under gravity. It should be noted that the grease can flow to the top wall of the inner liner 120 or flow into the cooking cavity of the inner liner 120.

[0160] This application provides a cooking appliance, which includes an outer shell 110, an inner liner 120, a smoke exhaust duct, and a fan 340. The smoke exhaust duct includes a cooling element 310, a fan housing 330, and a filter device 500 connected in sequence. The inner liner 120 is located inside the outer shell 110 and has a cooking cavity. The top of the inner liner 120 has a second opening 121. The cooling element 310 has a first opening 311, which communicates with the second opening 121. The fan 340 is located inside the fan housing 330. Under the action of the fan 340, the oil fumes in the cooking cavity flow through the cooling element 310, the fan housing 330, and the filter device 500 to the outside of the outer shell 110, thereby purifying the oil fumes and reducing environmental pollution. The cooling element 310 can lower the temperature of the oil fumes, thereby reducing the damage to the fan 340 and the filter device 500 caused by high-temperature oil fumes. The cooling element 310 is located at the top of the inner liner 120 so that at least part of the grease condensed from the smoke in the exhaust channel flows along the inner wall of the cooling element 310 toward the inner liner 120 under the action of gravity. This allows the grease to be carbonized at high temperature near the outer wall of the inner liner 120, or to flow into the cooking cavity for high-temperature carbonization or for cleaning by the user. The exhaust channel is less likely to retain grease, thus preventing odors.

[0161] In some embodiments, the fan housing 330 is located on top of the cooling element 310, so that at least a portion of the grease condensed from oil fumes in the exhaust duct flows back to the inner liner 120 through the fan housing 330 and the cooling element 310. In this way, grease does not easily accumulate in the fan housing 330, and it is less likely to produce odors.

[0162] In some embodiments, the fan housing 330 includes a second connecting structure 331. The orthographic projection of the outer wall of the second connecting structure 331 toward the top wall of the inner liner 120 lies within the orthographic projection of the inner wall of the cooling member 310 toward the top wall of the inner liner 120, thereby allowing grease on the inner wall of the second connecting structure 331 to drip onto the inner wall of the cooling member 310, and the second connecting structure 331 is in communication with the cooling member 310.

[0163] Specifically, the second connecting structure 331 is inserted into the first connecting structure 321, and the second connecting structure 331 is connected to the first connecting structure 321.

[0164] In some embodiments, the fan housing 330 includes a mounting structure 332. The mounting structure 332 is located on top of the second communicating structure 331. The mounting structure 332 is in communication with the second communicating structure 331. A fan 340 is located within the mounting structure 332. The fan 340 rotates, thereby driving the flow of oil fumes.

[0165] The fan housing 330 includes a return flow structure 333. The return flow structure 333 is connected to the mounting structure 332. The fan housing 330 includes a connecting structure 334. The connecting structure 334 is connected to the return flow structure 333. The connecting structure 334 is connected to the filter device 500.

[0166] The reflux structure 333 extends at an angle to the horizontal plane, with the end near the connecting structure 334 being higher than the end near the mounting structure 332. The connecting structure 334 is connected to the filter device 500. The horizontal plane is the plane shown by the X and Y axes in the figure. By tilting the reflux structure 333, the grease is facilitated to flow back into the cooling element 310.

[0167] When the cooling component 310 is connected to the inner liner 120, the grease flows back to the top wall of the inner liner 120 or into the cooking cavity under the action of gravity along the return structure 333, the mounting structure 332, the second connecting structure 331, the first connecting structure 321 and the inner wall of the cooling component 310.

[0168] Figure 16 is a cross-sectional view of the fan device in the cooking appliance provided in the embodiment of this application, and Figure 17 is a partial enlarged view of point D in Figure 16.

[0169] Referring to Figures 16 and 17, the outer wall of the first connecting structure 321 abuts against the inner wall of the cooling element 310. This helps to prevent grease from flowing to the outside of the fan device 300 through the space between the first connecting structure 321 and the cooling element 310.

[0170] Specifically, the outer wall of the second connecting structure 331 abuts against the inner wall of the first connecting structure 321.

[0171] Referring to Figure 18, in some embodiments, the angle α between the extension direction of the reflux structure 333 and the horizontal plane is greater than 20° and less than 40°.

[0172] When the angle α between the extension direction of the reflux structure 333 and the horizontal plane is less than 20°, the grease formed after the oil fume cools down is not easy to slide down the inner wall of the reflux structure 333 and tends to accumulate on the inner wall. When the angle α between the extension direction of the reflux structure 333 and the horizontal plane is greater than 40°, the oil fume has poor flowability and is not easy to enter the filter device 500.

[0173] In some embodiments, the angle α between the extension direction of the reflux structure 333 and the horizontal plane is 25°, 30°, or 35°.

[0174] Referring to Figure 17, in some embodiments, the length of contact between the outer wall of the second connecting structure 331 and the inner wall of the first connecting structure 321 along the height direction is greater than 3 mm. This helps to improve the reliability of the connection, and prevents oil fumes from easily overflowing between the outer wall of the second connecting structure 331 and the inner wall of the first connecting structure 321.

[0175] In some embodiments, the length by which the outer wall of the second connecting structure 331 abuts against the inner wall of the first connecting structure 321 along the height direction is 4 mm, 5 mm, or 6 mm.

[0176] In some embodiments, the length of the second connecting structure 331 inserted into the first connecting structure 321 along the height direction is greater than 3 mm. The height direction is the direction shown by the Z-axis in the figure.

[0177] In some embodiments, the length of the second connecting structure 331 inserted into the first connecting structure 321 along the height direction is 4mm, 5mm or 6mm.

[0178] Referring to Figure 15, the outer wall of the second connecting structure 331 is provided with an air inlet 3311. Under the action of the fan 340, air from outside the inner liner 120 enters the fan device 300 through the air inlet 3311. It can be understood that the air temperature inside the inner liner 120 is relatively high. By providing the air inlet 3311, cooler air is introduced from outside the inner liner 120 to mix with the oil fumes, thereby helping to lower the temperature and effectively solving the problem of damage to the filter device 500 and the fan 340 caused by excessively high temperatures.

[0179] Figure 41 is a schematic diagram of the flow of oil fumes and external air in the cooking appliance provided in the embodiment of this application.

[0180] Referring to Figure 41, when the fan device 300 is connected to the inner liner 120, the fan 340 rotates. Air inside the inner liner 120 enters the fan housing 330 through the second opening 121 and the cooling element 310. Air outside the inner liner 120 enters the fan housing 330 through the air inlet 3311. The mixed air then enters the filter device 500. In this way, the low-temperature air outside the inner liner mixes with the high-temperature oil fumes flowing out of the inner liner 120, thereby reducing the temperature of the oil fumes and minimizing damage to the fan 340 and the filter device 500.

[0181] Referring to Figure 17, in some embodiments, the cross-sectional area of ​​the inner wall of the cooling element 310 along the horizontal plane increases from the bottom to the top. That is, the cooling element 310 is generally funnel-shaped. This increases the air intake area of ​​the fan device 300, improving the speed of oil fume exhaust, and also increases the amount of air from outside the inner liner 120 entering the fan housing 330, improving the cooling effect and speed. The direction from the bottom to the top of the cooling element 310 is shown by the Z-axis in the figure. The horizontal plane is the plane formed by the X-axis and Y-axis in the figure. Furthermore, this facilitates the flow of grease along the inner wall of the cooling element 310, preventing it from dripping directly into the cooking cavity and contaminating the food inside.

[0182] In some embodiments, the opening area of ​​the first opening 311 is larger than the opening area of ​​the second opening 121. This is beneficial to improving the cooling effect of the cooling element, and also prevents grease from dripping directly into the cooking cavity through the second opening, thus avoiding contamination of the food inside the cooking cavity.

[0183] Figure 42 is a schematic diagram of the flow of oil in the cooking appliance provided in the embodiment of this application.

[0184] Referring to Figure 42, in some embodiments, an oil-blocking structure 122 is provided on the top of the inner liner. The oil-blocking structure 122 protrudes from the outer wall of the inner liner and is located within the cooling element. The oil-blocking structure 122 has a connecting cavity that communicates with the first opening 311 and the second opening 121, so that at least a portion of the grease condensed from oil fumes in the exhaust channel flows back to the area enclosed by the top wall of the inner liner 120, the outside of the oil-blocking structure 122, and the inner wall of the cooling element 310. In this way, by providing the oil-blocking structure 122 to block the grease, the amount of grease entering the cooking cavity is reduced, thus preventing contamination of the food in the cooking cavity. When the amount of grease is large, it can enter the cooking cavity through the connecting cavity and the second opening 121. It is understood that the high temperature during the operation of the cooking device can carbonize the grease on the top wall of the cooking cavity and the inner liner.

[0185] In some embodiments, a portion of the fan housing 330 is inserted into the filter device 500, with a portion of the filter device 500 positioned above the fan housing 330. This facilitates the flow of at least a portion of the grease in the filter device 500 toward the inner liner.

[0186] Figure 19 is a schematic diagram of the structure of the fan top cover in the cooking appliance provided in the embodiment of this application, and Figure 20 is a schematic diagram of the structure of the fan bottom shell in the cooking appliance provided in the embodiment of this application.

[0187] Referring to Figures 19 and 20, in some embodiments, the fan housing 330 includes a fan base 335.

[0188] The fan base 335 has a first inner cavity, and a first mounting part 3351 is provided on the top of the fan base 335. The first mounting part 3351 extends along the periphery of the first inner cavity, and the second connecting structure 331 is located at the bottom of the fan base 335.

[0189] In some embodiments, the fan housing 330 includes a fan upper housing 336.

[0190] The upper fan housing 336 covers the top of the lower fan housing 335. The upper fan housing 336 has a second inner cavity that communicates with the first inner cavity. The first inner cavity and the second inner cavity form a first air chamber.

[0191] The top of the fan base 335 is provided with a second mounting part 3361, which extends along the periphery of the second inner cavity and is provided correspondingly to the first mounting part 3351.

[0192] The upper fan housing 336 and the lower fan housing 335 together form the mounting structure 332, the return flow structure 333, and the connection structure 334.

[0193] In some embodiments, the fan housing 330 includes a seal (not shown) that is engaged within a first mounting portion 3351 and a second mounting portion 3361.

[0194] Specifically, one of the first mounting part 3351 and the second mounting part 3361 is a mounting groove, and the other is a mounting protrusion that matches the mounting groove. The mounting protrusion and the seal are engaged in the mounting groove.

[0195] The sealing element can be a sealing strip. The material of the sealing element can be rubber or cotton cloth, etc.

[0196] Understandably, by setting up separate upper fan housing 336 and lower fan housing 335, the machining difficulty of fan housing 330 is reduced, and the installation of fan 340 is facilitated. By setting up the first mounting part 3351, the second mounting part 3361, and the seal, the sealing performance of fan housing 330 is improved.

[0197] Referring to Figure 11, in some embodiments, the fan assembly 300 further includes a buffer seat assembly 350. The buffer seat assembly 350 is used to reduce noise during operation of the fan 340.

[0198] The fan housing 330 is connected to the buffer seat assembly 350, and the buffer seat assembly 350 is connected to the fixed bracket 320.

[0199] In some embodiments, the number of buffer seat assemblies 350 is at least two, and the at least two buffer seat assemblies 350 are spaced apart.

[0200] Figure 21 is a schematic diagram of the structure of the buffer seat assembly in the cooking appliance provided in the embodiment of this application.

[0201] Referring to Figure 21, in some embodiments, the buffer assembly 350 includes a damping element 351. The damping element 351 can store and release energy by deformation.

[0202] The fan housing 330 is mounted on the outer wall of the damping component 351.

[0203] Specifically, the damping element 351 includes a damping body 3511. The damping body 3511 may be cylindrical. The damping body 3511 is provided with a through hole, and the axis of the through hole is aligned with the axis of the damping body 3511.

[0204] The outer wall of the damping body 3511 is provided with a first limiting part 3512 and a second limiting part 3513. The first limiting part 3512 and the second limiting part 3513 are spaced apart along the axial direction of the damping body 3511.

[0205] The fan housing 330 is provided with a claw, which is engaged on the outer wall of the damping body 3511 and is engaged between the first limiting part 3512 and the second limiting part 3513.

[0206] In some embodiments, the damping element 351 may be made of rubber.

[0207] In some embodiments, the buffer assembly 350 includes a mass 352. The inertia of the mass 352 resists changes in the deformation force of the damper 351, which helps to prevent oscillations in the buffer assembly 350.

[0208] The mass component 352 is inserted into the damping component 351 and is engaged with the damping component 351.

[0209] Specifically, mass part 352 is a metal part.

[0210] In some embodiments, the buffer seat assembly 350 includes fasteners.

[0211] The fastener is inserted into the fixed bracket 320 via the mass component 352 to connect the mass component 352 and the fixed bracket 320.

[0212] Specifically, the fastener can be a screw.

[0213] It is understandable that by setting up the damping component 351 and the mass component 352, a spring-mass block system can be formed, which is beneficial to the vibration reduction of the fan 340.

[0214] Figure 22 is a schematic diagram of the connecting device in the cooking appliance provided in the embodiment of this application, Figure 23 is a cross-sectional view along the EE direction in Figure 4, and Figure 24 is a partial enlarged view of point F in Figure 23.

[0215] The specific structure of the connecting device 400 is described below.

[0216] Referring to Figures 22 to 24, in some embodiments, the cooking appliance also includes a connecting device 400.

[0217] The cooling component 310 is provided with an air cavity, and the bottom of the cooling component 310 is provided with a first opening 311, which is connected to the air cavity.

[0218] The top of the inner pot 120 is provided with a second opening 121, which is connected to the cooking cavity and is opposite to the first opening 311.

[0219] In some embodiments, at least a portion of the connecting device 400 is located within the cooling member 310, and the connecting device 400 is configured to control whether the first opening 311 is connected to or not connected to the second opening 121. In this way, the first opening 311 and the second opening 121 are selectively connected, thereby helping to reduce heat loss in the inner liner 120.

[0220] In some embodiments, the connecting device 400 covers the second opening 121, and the connecting device 400 can control the opening ratio of the second opening 121. That is, the connecting device 400 can close the second opening 121, or open part of the second opening 121, or open all of the second opening 121.

[0221] Referring to Figure 22, in some embodiments, the communication device 400 includes a drive element 410.

[0222] Specifically, the drive element 410 can be an electric actuator. Alternatively, the drive element 410 can be a hydraulic cylinder.

[0223] Referring to Figure 4, the connecting device 400 includes a third fixing base 420 for mounting the driving component 410.

[0224] The third fixing seat 420 can be connected to the fixing bracket 320. The third fixing seat 420 can be connected to the housing 100.

[0225] Referring to Figure 22, in some embodiments, the connecting device 400 includes a first fixing base 430.

[0226] The first fixed base 430 can be connected to the fixed bracket 320. The first fixed base 430 can be connected to the housing 100.

[0227] The first fixing seat 430 is located on the side of the drive member 410 near the second opening 121.

[0228] In some embodiments, the connecting device 400 includes a first connecting rod 440.

[0229] The first connecting rod 440 is connected to the drive shaft of the drive member 410 on one side along its extension direction, and is rotatably connected to the first fixed seat 430 in the middle region along its extension direction. The other side of the first connecting rod 440 along its extension direction can extend into the interior of the cooling member 310 through the air inlet 3311.

[0230] In some embodiments, the connecting device 400 includes a second connecting rod 450.

[0231] The first connecting rod 440 is rotatably connected to the second connecting rod 450 on the other side along the extension direction.

[0232] Specifically, the second connecting rod 450 is located inside the cooling component 310.

[0233] In some embodiments, the connecting device 400 includes a connector 460.

[0234] The connector 460 is rotatably connected to the second connecting rod 450 on the side opposite to the first connecting rod 440 along the extension direction.

[0235] The connector 460 is located inside the cooling component 310.

[0236] In some embodiments, the connecting device 400 includes a second fixing base 470.

[0237] The second fixing seat 470 is located on the side of the first fixing seat 430 near the second opening 121, and the connector 460 is rotatably connected to the second fixing seat 470 on the side away from the second connecting rod 450.

[0238] The second fixing seat 470 is connected to the inner wall of the cooling component 310.

[0239] The second fixing member is located inside the cooling member 310.

[0240] In some embodiments, the connecting device 400 includes a cover 480. The cover 480 is used to cover the second opening 121.

[0241] The cover 480 is connected to the bottom of the connector 460.

[0242] The cover 480 is located inside the cooling component 310.

[0243] Specifically, the drive shaft of the drive member 410 moves downward to drive the first connecting rod 440 to rotate relative to the first fixed seat 430. The first connecting rod 440 drives the second connecting rod 450 to rotate. The second connecting rod 450 drives the connecting member 460 to rotate relative to the second fixed seat 470. The connecting member 460 drives the cover member 480 to rotate to open the second opening 121.

[0244] It is understandable that by controlling the downward movement of the drive shaft of the drive member 410, the rotation angle of the cover member 480 can be controlled, thereby controlling the opening ratio of the second opening 121.

[0245] In some embodiments, in order for the cover 480 to automatically reset, the connecting device 400 includes an elastic element connected to the second fixing seat 470 and to the connector 460.

[0246] Specifically, the elastic element can be a torsion spring.

[0247] Figure 25 is a structural schematic diagram of the filtering device and the linear drive device in the cooking appliance provided in the embodiment of this application. Figure 26 is a structural schematic diagram of Figure 25 from another angle. Figure 27 is an exploded view of Figure 25.

[0248] The specific structure of the filter device 500 is described below.

[0249] Referring to Figures 25 to 27, in some embodiments, the filtration device 500 includes a filter housing 530.

[0250] The filter housing 530 is provided with a second air chamber, which is connected to the first air chamber.

[0251] In some embodiments, the filtration device 500 includes at least one filter element module 540.

[0252] The filter module 540 is located in the second air chamber.

[0253] In some embodiments, the filtration device 500 includes a high-pressure transformer 550.

[0254] The high-voltage transformer 550 is located outside the filter housing 530. When the high-voltage transformer 550 is electrically connected to the filter element module 540, it forms an ionization region within the filter element module 540.

[0255] The cooking appliance provided in this embodiment includes a housing 100, a fan device 300, and a filter device 500. The filter device 500 includes a filter housing 530, a filter element module 540, and a high-pressure coil 550. The filter element module 540 is located inside the filter housing 530, and the high-pressure coil 550 is located outside the filter housing 530. In this way, the high-pressure coil 550 does not easily occupy the internal space of the filter housing 530 and does not easily obstruct the flow of oil fumes, thereby improving the filtration effect of the filter device 500.

[0256] Figure 28 is a structural schematic diagram of the first bottom shell and filter module in the cooking appliance provided in the embodiment of this application, and Figure 29 is a structural schematic diagram of Figure 28 from another angle.

[0257] Referring to Figures 28 and 29, in some embodiments, the filter module 540 is provided with a first contact 541 and a second contact 542, which are located on opposite sides of the filter module 540 and are configured to be electrically connected to the high-voltage transformer 550.

[0258] It is understandable that the first contact 541 and the second contact 542 are located on opposite sides of the filter module 540. This makes the distance between the first contact 541 and the second contact 542 relatively large, increasing the creepage distance and improving safety.

[0259] In some embodiments, the first contact 541 and the second contact 542 are located on opposite sides of the filter module 540 along a first direction of the housing 100.

[0260] The first contact 541 is located near the edge of the housing 100 along the first direction.

[0261] Specifically, the first contact 541 and the second contact 542 are located on opposite sides of the filter module 540 along the width direction of the housing 100. The width direction of the housing 100 is the direction shown by the X-axis in the figure.

[0262] Understandably, the first contact 541 is located near the edge of the enclosure 100 along the first direction. This places the first contact 541 close to the outer casing 110 of the enclosure 100, which is grounded. In the event of an electrical fault, this provides a low-impedance path to safely guide the fault current to the ground, reducing the risk of electric shock.

[0263] In some embodiments, the number of filter modules 540 is at least two, and the at least two filter modules 540 are arranged along a second direction, which has an angle with the first direction.

[0264] In this configuration, the first contact 541 and the second contact 542 of each filter module 540 are electrically connected to the high-voltage transformer 550.

[0265] Specifically, there are two filter modules 540, which are arranged along the depth direction of the housing 100, which is the direction shown by the Y-axis in the figure.

[0266] Understandably, the first contact 541 and the second contact 542 of each filter module 540 are electrically connected to the high-voltage transformer 550. This means that each filter module 540 is powered independently, thus minimizing mutual interference between them. This results in higher reliability for the filter modules 540.

[0267] It should be noted that in some embodiments, the number of filter modules 540 can be greater. The second direction can form an angle with the depth direction of the housing 100 and an angle with the width direction of the housing 100. This embodiment will not be described in detail here.

[0268] Referring to Figures 25 to 27, in some embodiments, the filter device 500 includes a fixed housing 560.

[0269] The fixed outer casing 560 is located inside the housing 100.

[0270] Specifically, the outer casing 560 can be located on top of or above the inner liner 120.

[0271] The fixed housing 560 has a second mounting cavity and a third opening, which communicates with the second mounting cavity and with the outside of the housing 100.

[0272] Figure 30 is a cross-sectional view of the filter device in the cooking appliance provided in the embodiment of this application when it is in the first state; Figure 31 is a cross-sectional view of the filter device in the cooking appliance provided in the embodiment of this application when it is in the second state; and Figure 32 is a cross-sectional view of the filter device in the cooking appliance provided in the embodiment of this application when it is in the third state.

[0273] Referring to Figures 30 to 32, the filter housing 530 is slidably connected to the fixed housing 560, and the filter housing 530 slides relative to the fixed housing 560 so that it is located in the second mounting cavity through the third opening or at least partially located outside the housing 100.

[0274] The filter module 540 moves synchronously with the filter housing 530.

[0275] In some embodiments, the filter device 500 includes a cover plate 570.

[0276] The cover plate 570 is rotatably connected to the fixed housing 560. The cover plate 570 rotates relative to the fixed housing 560 to open or close the third opening. This improves aesthetics. Specifically, a pivot is provided on the lower front side of the fixed housing 560, and the cover plate 570 has a pivot hole that matches the pivot, with the pivot inserted into the pivot hole. The axis of the pivot is aligned with the width direction of the housing 100, as shown by the X-axis in the figure. The filter housing 530 moves relative to the fixed housing 560 along the Y-axis, thereby pushing the cover plate 570 to rotate downwards.

[0277] In some embodiments, an elastic element is also included. The elastic element is connected to the fixed housing 560 and the cover plate 570, so that when the filter housing 530 stops applying external force to the fixed housing 560, the cover plate 570 can be reset under the elastic force of the elastic element. Specifically, the elastic element can be a torsion spring.

[0278] In some embodiments, the cover plate 570 may be part of the outer housing 110. In some embodiments, the cover plate 570 may be rotatably connected to the outer housing 110.

[0279] It should be noted that when there is no oil smoke or very little oil smoke in the inner liner 120, the fan device 300 is not connected to the inner liner 120, the filter device 500 is in the first state, the filter device 500 is located inside the fixed outer shell 560, and the filter device 500 is not connected to the outside of the box 100.

[0280] When there is a large amount of oil fume in the inner liner 120, the fan device 300 is connected to the inner liner 120, and the filter device 500 is in its second state. The filter device 500 pushes the cover plate 570 to rotate through the third opening, thereby connecting the filter device 500 to the outside of the housing 100, and thus discharging the filtered air to the outside of the housing 100. This facilitates airflow and improves the efficiency of oil fume extraction.

[0281] When the filter element module 540 needs to be replaced and cleaned, the filter device 500 pushes the cover plate 570 to rotate through the third opening and continues to move outward. The filter device 500 is in the third state, which makes it easy for the user to pull the filter housing 530 to remove the filter housing 530 and the filter element module 540.

[0282] Figure 33 is a structural schematic diagram of the filter housing in the cooking appliance provided in the embodiment of this application. Figure 34 is a structural schematic diagram of Figure 33 from another angle.

[0283] Referring to Figures 33 and 34, in some embodiments, a handle structure 531 is provided at the front end of the filter housing 530 along the direction of movement of the filter housing 530.

[0284] Specifically, the filter housing 530 and the filter element module 540 move along the direction shown by the Y-axis in the figure. The front end of the filter housing 530 faces the third opening.

[0285] Understandably, by setting up the handle structure 531, it is easier for users to operate. By pulling the handle structure 531, users can easily remove the filter housing 530 and the filter element module 540.

[0286] In some embodiments, the filter housing 530 includes a first bottom housing 532.

[0287] The first bottom shell 532 has a second air cavity.

[0288] The first bottom shell 532 has a fourth opening at the top along the height direction, and the fourth opening is connected to the second air cavity.

[0289] Along the moving direction of the filter housing 530, the front end of the first bottom shell 532 is provided with a first smoke outlet 5321, which is connected to the second air cavity.

[0290] Referring to Figures 33 and 34, the filter housing 530 is provided with second smoke outlets 5322 at both ends along the first direction. The second smoke outlets 5322 are close to the first smoke outlets 5321 and are connected to the second air chamber.

[0291] The first direction forms an angle with the moving direction of the filter housing 530, and the first direction forms an angle with the height direction.

[0292] In some embodiments, the filter housing 530 moves in the depth direction of the housing 100, which is the direction shown by the Y-axis in the figure. The height direction is the direction shown by the Z-axis in the figure. The first direction is the width direction of the housing 100, which is the direction shown by the X-axis.

[0293] In some embodiments, the filter housing 530 includes a first top cover 533.

[0294] The first upper cover 533 is placed on top of the first bottom shell 532 to close the fourth opening.

[0295] Specifically, the first upper cover 533 is provided with a third smoke outlet 5331, which is connected to the second air cavity. The third smoke outlet 5331 is close to the first smoke outlet 5321.

[0296] Understandably, by setting up the first smoke outlet 5321 and the second smoke outlet 5322, it is beneficial to reduce wind resistance and increase the smoothness of airflow.

[0297] It is understandable that by setting the first bottom shell 532 and the first top cover 533 to achieve the split design of the filter housing 530, it is beneficial to reduce the processing difficulty of the filter housing 530 and the installation difficulty of the filter element module 540.

[0298] In some embodiments, the first smoke outlet 5321 is provided with a filter mesh structure for further filtering of oil fumes. The filter mesh structure divides the first smoke outlet 5321 into multiple regions, and the filter mesh structure can be integrally formed with the first bottom shell 532.

[0299] In some embodiments, the second smoke outlet 5322 is provided with a filter mesh structure for further filtering of oil fumes. The filter mesh structure divides the second smoke outlet 5322 into multiple regions, and the filter mesh structure can be integrally formed with the first bottom shell 532.

[0300] In some embodiments, the third smoke outlet 5331 is provided with a filter mesh structure for further filtering of oil fumes. The filter mesh structure divides the third smoke outlet 5331 into multiple areas, and the filter mesh structure can be integrally formed with the first upper cover 533.

[0301] In some embodiments, the material of the filter mesh structure may be the same as that of the filter housing 530.

[0302] In some embodiments, the mounting opening 510 is provided on the first bottom shell 532.

[0303] Referring to Figures 25 to 27, in some embodiments, the fixed housing 560 is provided with a fifth opening 561, which is located on opposite sides of the third opening. The fan device 300 is inserted into the fifth opening 561. The fixed housing 560 includes a second bottom housing 562. The second bottom housing 562 is provided with a second mounting cavity. The fixed housing 560 includes a second top cover 563, which covers the top of the second bottom housing 562. The second bottom housing 562 and the second top cover 563 together form the fifth opening 561. The fifth opening 561 is opposite to the mounting opening 510, and the fan device 300 is inserted into the mounting opening 510 through the fifth opening 561.

[0304] In some embodiments, a third opening is provided on the second bottom shell 562. It is understood that by providing a second bottom shell 562 and a second top cover 563 to achieve a split design for the fixed outer shell 560, it is beneficial to reduce the processing difficulty of the fixed outer shell 560 and reduce the installation difficulty of the filter housing 530.

[0305] It should be noted that during installation, the second bottom shell 562, filter shell 530, and filter element module 540 can be installed first, followed by the installation of the fan device 300, and then the second top cover 563 can be connected to the second bottom shell 562. Alternatively, the fixed outer shell 560, filter shell 530, and filter element module 540 can be installed first, followed by the installation of the fan device 300.

[0306] Figure 35 is a magnified view of point G in Figure 28.

[0307] Referring to Figures 28, 29 and 35, in some embodiments, the outer wall of the filter module 540 is provided with a first anti-slip portion 543 and a second anti-slip portion 544, which are located on opposite sides of the filter module 540.

[0308] The filter housing 530 is provided with a third clearance opening 534 to avoid the first anti-slip part 543, and the filter housing 530 is provided with a fourth clearance opening 536 to avoid the second anti-slip part 544.

[0309] The first anti-slip part 543 and the second anti-slip part 544 protrude from the outer wall of the filter module 540. The side wall of the first anti-slip part 543 abuts against the inner wall of the third clearance opening 534, and the side wall of the second anti-slip part 544 abuts against the inner wall of the fourth clearance opening 536, thereby restricting the position of the filter module 540. Specifically, the first anti-slip part 543 and the second anti-slip part 544 are arranged opposite each other along the width direction of the housing 100. The first anti-slip part 543 abuts against the inner walls of the third clearance opening 534 on both sides opposite each other along the depth direction of the housing 100. The second anti-slip part 544 abuts against the inner walls of the fourth clearance opening 536 on both sides opposite each other along the depth direction of the housing 100.

[0310] Understandably, users can remove the filter module 540 from the first bottom shell 532 of the filter housing 530 by using their fingers to grip the first anti-slip part 543 and the second anti-slip part 544. Moreover, the cooperation between the first anti-slip part 543 and the second anti-slip part 544 and the third clearance opening 534 and the fourth clearance opening 536 can play a limiting role, thereby facilitating the synchronous movement of the filter module 540 and the filter housing 530.

[0311] Specifically, the first anti-slip part 543 and the second anti-slip part 544 can be strip-shaped anti-slip protrusions.

[0312] Figure 36 is a schematic diagram of the structure of the contact spring and the second bottom shell in the cooking appliance provided in the embodiment of this application.

[0313] Referring to Figures 32, 33, and 36, in some embodiments, the filter device 500 includes at least two contact springs 580. The contact springs 580 are electrically connected to the high-voltage transformer 550.

[0314] The contact spring 580 is connected to the outer wall of the fixed housing 560. The outer wall of the fixed housing 560 is provided with at least two first clearance openings 564 to avoid at least two contact springs 580. The at least two first clearance openings 564 are provided in a one-to-one correspondence with at least two contact springs 580.

[0315] The outer wall of the filter housing 530 is provided with at least two second clearance openings 535 that respectively avoid the first contact 541 and the second contact 542, and the at least two second clearance openings 535 are respectively provided in a one-to-one correspondence with the at least two first clearance openings 564.

[0316] When the filter housing 530 slides relative to the fixed outer shell 560 until the second clearance port 535 is opposite to the corresponding first clearance port 564, at least one contact spring 580 is electrically connected to the first contact 541 through the corresponding first clearance port 564 and the corresponding second clearance port 535, and at least one contact spring 580 is electrically connected to the second contact 542 through the corresponding first clearance port 564 and the corresponding second clearance port 535, so that at least one filter module 540 is electrically connected to the high voltage transformer 550.

[0317] Specifically, each filter module 540 corresponds to two contact springs 580. One contact spring 580 is used to connect to the first contact 541, and the other contact spring 580 is used to connect to the second contact 542. When the filter housing 530 slides relative to the fixed outer shell 560 until the second clearance port 535 is aligned with the first clearance port 564, one contact spring 580 is electrically connected to the first contact 541 via the corresponding first clearance port 564 and the corresponding second clearance port 535. The other contact spring 580 is electrically connected to the second contact 542 via the corresponding first clearance port 564 and the corresponding second clearance port 535, thereby electrically connecting the filter module 540 to the high-voltage transformer 550.

[0318] It should be noted that when there is one filter module 540, there are two contact springs 580, two first clearance ports 564, and two second clearance ports 535. One of the two second clearance ports 535 avoids the first contact point 541, and the other avoids the second contact point 542. When there are two filter modules 540, there are four contact springs 580, four first clearance ports 564, and four second clearance ports 535. Two of the four second clearance ports 535 avoid the two first contacts 541 of the two filter modules 540, and the other two avoid the two second contacts 542 of the two filter modules 540.

[0319] Understandably, based on the sliding of the filter housing 530 relative to the fixed outer shell 560, the electrical connection and disconnection of the filter element module 540 and the high-voltage transformer 550 are achieved through the deformation of the contact spring 580. This method offers high reliability and a relatively simple structure. It should be noted that the contact spring 580 is a conductive metal component.

[0320] Figure 37 is a structural schematic diagram of the contact spring in the cooking appliance provided in the embodiment of this application, and Figure 38 is a structural schematic diagram of Figure 37 from another angle.

[0321] Referring to Figures 36 to 38, in some embodiments, the contact spring 580 includes a fixing part 581. The fixing part 581 is connected to the fixing housing 560.

[0322] Specifically, the fixing part 581 includes a first positioning notch and a second positioning notch, and the extending directions of the first positioning notch and the second positioning notch form an angle. For example, the extending directions of the first positioning notch and the second positioning notch are perpendicular. The first positioning notch and the second positioning notch may be elongated.

[0323] In some embodiments, the fixing part 581 includes a third positioning notch. The third positioning notch may be circular.

[0324] The fixed housing 560 is provided with an assembly structure 565, which corresponds one-to-one with the contact spring 580. The assembly structure 565 includes a receiving cavity that communicates with the first clearance opening 564. The inner wall of the receiving cavity has a first positioning protrusion that matches the first positioning notch. The inner wall of the receiving cavity also has a second positioning protrusion that matches the second positioning notch.

[0325] In some embodiments, the inner wall of the receiving cavity is provided with a third positioning protrusion that matches the third positioning notch. The fixing part 581 is located within the receiving cavity, the first positioning notch is connected to the first positioning protrusion, the second positioning notch is connected to the second positioning protrusion, and the third positioning notch is connected to the third positioning protrusion.

[0326] In some embodiments, the contact spring 580 includes a first arcuate portion 582. One side of the first arcuate portion 582 is connected to the fixing portion 581.

[0327] In some embodiments, the contact spring 580 includes a first straight portion 583. The first straight portion 583 is connected to the side of the first arcuate portion 582 opposite to the fixing portion 581.

[0328] The first straight section 583 has an extension plane that forms a first angle b with the extension plane of the fixed section 581, and there is a distance between the first straight section 583 and the fixed section 581. The first straight section 583 can approach the fixed section 581 under the action of an external force.

[0329] In some embodiments, the contact spring 580 includes a second arcuate portion 584.

[0330] The second arc-shaped portion 584 is connected to the side of the first straight portion 583 opposite to the first arc-shaped portion 582, and the second arc-shaped portion 584 is located on the side of the fixing portion 581 facing the first clearance opening 564. The second arc-shaped portion 584 is used for electrical connection with the filter module 540. Compared to the straight portion, the second arc-shaped portion 584 has a larger contact area when electrically connecting to the filter module 540.

[0331] In some embodiments, the contact spring 580 includes a second straight portion 585. The second straight portion 585 is connected to the side of the second arcuate portion 584 opposite to the first straight portion 583. The extending plane of the second straight portion 585 forms a second included angle c with the extending plane of the first straight portion 583. The second straight portion 585 is located on the side of the second arcuate portion 584 facing the fixing portion 581, and the second straight portion 585 and the fixing portion 581 are spaced apart.

[0332] The filter housing 530 slides relative to the fixed outer shell 560, and contacts the second arc-shaped portion 584. The second arc-shaped portion 584 deforms under the pressure of the filter housing 530, and the distance between the first straight portion 583, the second arc-shaped portion 584, the second straight portion 585 and the fixed portion 581 decreases. When the filter housing 530 slides relative to the fixed outer shell 560 until the second clearance opening 535 and the first clearance opening 564 are opposite each other, the second arc-shaped portion 584 contacts and electrically connects to the filter element module 540 through the first clearance opening 564 and the second clearance opening 535.

[0333] It is understandable that by setting the fixing part 581, the first arc-shaped part 582, the first straight part 583, the second arc-shaped part 584 and the second straight part 585, the elastic deformation of the contact spring 580 can be achieved, the structure is relatively simple and the processing cost is low.

[0334] In some embodiments, at least a portion of the second arcuate portion 584 is located within the second mounting cavity via the first clearance opening 564. This allows for a larger contact area between the second arcuate portion 584 and the filter housing 530.

[0335] In some embodiments, at least a portion of the second arcuate portion 584 is located within the second mounting cavity via the first clearance opening 564, and at least a portion of the second straight portion 585 is located outside the second mounting cavity. This prevents damage to the contact spring 580 during the sliding process of the filter housing 530 relative to the fixed housing 560, thus ensuring proper deformation of the contact spring 580.

[0336] In some embodiments, in order to improve the deformability of the contact spring 580, the first arcuate portion 582 is provided with a through opening 586, which extends along the extending direction of the first arcuate portion 582.

[0337] In some embodiments, the through opening 586 may extend to the fixing portion 581 and the first straight portion 583.

[0338] In some embodiments, to improve the strength of the contact spring 580, the second arcuate portion 584 is provided with a molding 587. The molding 587 extends along the extending direction of the second arcuate portion 584.

[0339] In some embodiments, the molding 587 may extend to the first straight portion 583 and the second straight portion 585.

[0340] In some embodiments, the first included angle b between the extension plane of the fixing portion 581 and the extension plane of the first straight portion 583 is less than 45°.

[0341] In some embodiments, the first included angle b between the extension plane of the fixing portion 581 and the extension plane of the first straight portion 583 is greater than 20°.

[0342] In some embodiments, the first included angle b between the extension plane of the fixing portion 581 and the extension plane of the first straight portion 583 is 25°, 30°, 35° or 40°.

[0343] When the first included angle b between the extended plane of the fixed part 581 and the extended plane of the first straight part 583 is greater than 45°, the first straight part 583 is prone to deformation and move away from the fixed part 581 during the sliding process of the filter housing 530 relative to the fixed housing 560. When the first included angle b between the extended plane of the fixed part 581 and the extended plane of the first straight part 583 is less than 20°, the deformation range of the first straight part 583 is smaller and the elasticity is poor during the sliding process of the filter housing 530 relative to the fixed housing 560.

[0344] In some embodiments, the second included angle c between the extending plane of the fixing portion 581 and the extending plane of the second straight portion 585 is less than 45°.

[0345] In some embodiments, the second included angle c between the extending plane of the fixing portion 581 and the extending plane of the second straight portion 585 is 10°, 15°, 20°, 25°, 30°, 35° or 40°.

[0346] When the second included angle c between the extended plane of the fixed part 581 and the extended plane of the second straight part 585 is greater than 45°, the filter housing 530 is prone to deformation as it slides relative to the fixed housing 560, causing the second straight part 585 to move away from the fixed part 581.

[0347] The structure of the linear drive device is described below.

[0348] Referring to Figures 30 to 33, in some embodiments, the cooking appliance includes a linear drive 700.

[0349] When the fan device 300 is connected to the inner liner 120, the fan device 300 is configured to discharge the oil fumes in the cooking cavity to the filter device 500 through the fan device 300. The linear drive device 700 is configured to drive the filter device 500 to move so that the filter device 500 is connected to or not connected to the outside of the cooking appliance.

[0350] Figure 39 is a schematic diagram of the linear drive device in the cooking appliance provided in the embodiment of this application. Figure 40 is a schematic diagram of the linear drive device in Figure 39 after removing part of the outer shell and tray.

[0351] Referring to Figures 39 and 40, in some embodiments, the linear drive device 700 includes a drive housing 710.

[0352] In some embodiments, the linear drive device 700 includes a linear drive assembly 720.

[0353] Specifically, the linear drive assembly 720 can be a hydraulic cylinder or an electric actuator.

[0354] The linear drive assembly 720 is connected to the drive housing 710, and the drive shaft of the linear drive assembly 720 is connected to the filter device 500.

[0355] In some embodiments, the linear drive device 700 includes a sensor 730. The sensor 730 is used to trigger the sensor 740.

[0356] The sensing element 730 is located inside the drive housing 710 and is connected to the drive shaft of the linear drive assembly 720.

[0357] In some embodiments, the linear drive device 700 includes at least two sensors 740. The sensors 740 are used to detect the position of the sensing element 730. The sensors 740 are located within the drive housing 710, and at least two sensors 740 are spaced apart along the extension direction of the drive shaft. The linear drive assembly 720 drives the sensing element 730 to move until it triggers the target sensor 740, at which point the linear drive assembly 720 stops moving. The sensors 740 are electrically connected to the linear drive assembly 720.

[0358] Understandably, when the filter housing 530 slides relative to the fixed housing 560 and reaches a position where the filter device 500 is not in communication with the outside of the housing 100, the sensor 730 triggers one of the sensors 740, and the linear drive assembly 720 stops moving. When the filter housing 530 slides relative to the fixed housing 560 and reaches a position where the filter device 500 is in communication with the outside of the housing 100, the sensor 730 triggers another sensor 740, and the linear drive assembly 720 stops moving. The extension direction of the drive shaft is as shown by the Y-axis in the figure.

[0359] It should be noted that sensor 740 can be a proximity switch. Alternatively, sensor 740 can be a micro switch. Alternatively, sensor 740 can be a limit switch.

[0360] The cooking appliance provided in this embodiment includes an inner pot 120, a fan device 300, a filter device 500, and a linear drive device 700. When the fan device 300 is connected to the inner pot 120, it is configured to discharge cooking fumes from the cooking cavity to the filter device 500. The linear drive device 700 is configured to drive the filter device 500 to move, allowing the filter device 500 to be connected to or disconnected from the outside of the cooking appliance. The linear drive device 700 includes a drive housing 710, a linear drive assembly 720, a sensor 730, and at least two sensors 740. The linear drive assembly 720 is connected to the drive housing 710, and the sensor 730 and at least two sensors 740 are located inside the drive housing 710. This allows the linear drive device 700 to be assembled and then connected to the filter device 500, improving installation convenience and efficiency. Furthermore, the movement of the linear drive assembly 720 is detected by the sensor 730 and the sensors 740, which helps improve control accuracy.

[0361] In some embodiments, the drive housing 710 is connected to the fixed housing 560 of the filter device 500.

[0362] Specifically, the drive housing 710 and the fixed housing 560 can be snapped together or connected by fasteners.

[0363] In some embodiments, the drive housing 710 includes an outer shell 711. The outer shell 711 can serve a protective function.

[0364] The outer casing 711 has a first mounting cavity and an inlet / outlet. The inlet / outlet communicates with the first mounting cavity.

[0365] The first mounting cavity is used to accommodate the sensor 740, part of the linear drive assembly 720, and the sensing element 730. The drive shaft of the linear drive assembly 720 is inserted into the inlet / outlet, and part of the drive shaft is located outside the housing 711.

[0366] In some embodiments, the housing 711 includes a plurality of side panels that are detachably connected. Specifically, the side panels can be connected by screws.

[0367] In some embodiments, the linear drive assembly 720 is detachably connected to the housing 711. This facilitates the installation and removal of the linear drive assembly 720.

[0368] Specifically, the linear drive assembly 720 and the housing 711 can be connected by screws.

[0369] In some embodiments, the drive housing 710 includes a bracket 712.

[0370] The bracket 712 is located inside the housing 711, and the bracket 712 is detachably connected to the housing 711. The sensor 740 is connected to the bracket 712.

[0371] In this way, during installation, each sensor 740 can be first mounted on the bracket 712, and then the bracket 712 and the sensor 740 can be installed together with the housing 711. This makes installation very convenient.

[0372] For example, the bracket 712 can be snapped into the housing 711, or the bracket 712 can abut against the housing 711.

[0373] In some embodiments, the bracket 712 includes a first connecting plate 7121 and a second connecting plate 7122. The sensor 740 is located between the first connecting plate 7121 and the second connecting plate 7122. The sensor 740 is connected to both the first connecting plate 7121 and the second connecting plate 7122. This shared connection of the sensor 740 via the first connecting plate 7121 and the second connecting plate 7122 helps ensure the reliability of the sensor 740 connection. The first connecting plate 7121 and the second connecting plate 7122 are detachably connected. This facilitates the exposure of the sensor 740 for maintenance and replacement.

[0374] In some embodiments, the first connecting plate 7121 and the second connecting plate 7122 are snapped together. This improves the efficiency of installation and disassembly. Specifically, one of the first connecting plate 7121 and the second connecting plate 7122 is provided with a claw, and the other is provided with a slot. The first connecting plate 7121 and the second connecting plate 7122 are snapped together by the claw and the slot.

[0375] In some embodiments, the sensor 740 is provided with a fourth connecting portion. Specifically, a sensor 740 is provided with at least two fourth connecting portions. The at least two fourth connecting portions are spaced apart. This helps to improve the reliability of the sensor 740 connection. Specifically, the fourth connecting portion may include a light hole or a threaded hole. The first connecting plate 7121 is provided with a fifth connecting portion. The fifth connecting portion is provided in a one-to-one correspondence with the fourth connecting portion. Specifically, the fifth connecting portion may include a light hole or a threaded hole. The second connecting plate 7122 is provided with a sixth connecting portion. The sixth connecting portion is provided in a one-to-one correspondence with the fifth connecting portion. Specifically, the sixth connecting portion may include a light hole or a threaded hole. A first fastener is inserted into the sixth connecting portion via the fifth connecting portion and the fourth connecting portion to connect the sensor 740, the first connecting plate 7121 and the second connecting plate 7122. Specifically, the first fastener may be a pin. Alternatively, the first fastener may be a screw. In this way, the connection of the sensor 740, the first connecting plate 7121 and the second connecting plate 7122 can be completed with fewer first fasteners, resulting in higher efficiency in connection and disassembly.

[0376] In some embodiments, the number of sensors 740 is at least three, and the at least three sensors 740 are spaced apart along the extension direction of the drive shaft.

[0377] Referring to Figure 30, when there is no oil smoke or very little oil smoke in the inner liner 120, the fan device 300 is not connected to the inner liner 120, and the filter device 500 is in the first state. Specifically, the filter device 500 is located inside the fixed housing 560, the contact spring 580 and the contact point of the filter module 540 are not in contact, the filter module 540 is not electrically connected to the high-voltage transformer 550, the filter module 540 is in a de-energized state, and the filter device 500 is not connected to the outside of the housing 100. At this time, the sensing element 730 is located at the trigger position of the first sensor 740.

[0378] As shown in Figure 31, when there is a lot of oil smoke in the inner liner 120, the fan device 300 is connected to the inner liner 120, and the filter device 500 is in the second state. Specifically, under the driving action of the linear drive assembly 720, when the filter housing 530 slides relative to the fixed outer shell 560 until the second clearance port 535 is aligned with the corresponding first clearance port 564, the contact spring 580 is electrically connected to the first contact 541 through the corresponding first clearance port 564 and the corresponding second clearance port 535, and the contact spring 580 is electrically connected to the second contact 542 through the corresponding first clearance port 564 and the corresponding second clearance port 535, so that the filter element module 540 is electrically connected to the high voltage transformer 550. The filter element module 540 is in a powered state and processes the oil fumes. The filter housing 530 pushes the cover plate 570 to rotate through the third opening, and part of the filter housing 530 is located outside the housing 100, thereby connecting the filter device 500 with the outside of the housing 100, and thus discharging the filtered air to the outside of the housing 100. This facilitates airflow and improves the efficiency of oil fume extraction. At this time, the sensing element 730 is located at the trigger position of the second sensor 740. When the amount of oil fumes in the inner liner 120 is relatively small, the filter housing 530 moves in the opposite direction under the driving action of the linear drive assembly 720, returning to the first state mentioned above.

[0379] Referring to Figure 32, when the filter module 540 needs to be replaced and cleaned, under the driving action of the linear drive assembly 720, the filter device 500 pushes the cover plate 570 to rotate through the third opening and continues to move outward, thus facilitating the user to pull the filter housing 530 and remove the filter module 540. At this time, the sensor 730 is located at the trigger position of the third sensor 740. After replacement, under the driving action of the linear drive assembly 720, the filter housing 530 moves in the opposite direction, returning to the first state described above.

[0380] Understandably, by setting up three sensors 740, each sensor 740 corresponds to a different state. When the linear drive assembly 720 operates, its drive shaft moves the sensing element 730 to the corresponding sensor 740 position, triggering the sensor 740. After receiving the positioning signal, the linear drive assembly 720 stops moving, thereby improving control accuracy.

[0381] In some embodiments, the linear drive device 700 includes a connecting rod 750. The connecting rod 750 is threadedly connected to the drive shaft. This results in high connection efficiency between the connecting rod 750 and the drive shaft. Specifically, the drive shaft is provided with a threaded hole.

[0382] In some embodiments, the connecting rod 750 includes a first connecting post and a second connecting post, the axes of the first connecting post and the second connecting post are collinear, and the top of the first connecting post is connected to the bottom of the second connecting post. The outer wall of the first connecting post is provided with threads.

[0383] The diameter of the first connecting post is smaller than the diameter of the second connecting post, and the bottom of the second connecting post abuts against the drive shaft, thereby serving as a limit.

[0384] In some embodiments, the linear drive unit 700 includes a tray 760, which is connected to the filter unit 500. Specifically, the tray 760 is connected to the side of the connecting rod 750 opposite to the drive shaft via a second fastener, which is inserted into the connecting rod 750 through the tray 760. The second fastener can be a screw. The tray 760 is located inside the fixed housing 560 and is slidably connected to the fixed housing 560. The bottom of the filter housing 530 abuts against the top of the tray 760.

[0385] The linear drive assembly 720 moves the filter housing 530 and filter element module 540 relative to the fixed housing 560 via the connecting rod 750 and the tray 760, allowing the filter housing 530 and filter element module 540 to enter and exit the second mounting cavity through the third opening. It is understood that connecting the linear drive assembly 720 to the filter housing 530 via the connecting rod 750 and the tray 760 results in a simpler structure and higher installation efficiency.

[0386] In some embodiments, the top of the second connecting post is provided with a threaded hole, and a screw is inserted into the threaded hole via a tray 760 and screwed in, thereby connecting the connecting rod 750 and the tray 760. In some embodiments, the tray 760 is provided with a recess, and a second fastener is inserted into the recess so that the second fastener does not protrude from the top surface of the tray 760.

[0387] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0388] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A cooking utensil, characterized in that, include: A housing (100) having a cooking cavity; a fan device (300) having a first air chamber communicating with the cooking cavity; a filter device (500) having a second air chamber, a first side of the filter device (500) having an installation opening (510) communicating with the second air chamber, and the fan device (300) being inserted into the installation opening (510); A sealing structure (600) is located between the filter device (500) and the fan device (300). The sealing structure (600) includes: a body (610) connected to the filter device (500) and the body (610) surrounding the inner wall of the mounting opening (510); and fins (620) surrounding the body (610) on the side facing the fan device (300), the fins (620) contacting the fan device (300), and the fins (620) deforming under the action of the fan device (300) and the body (610).

2. The cooking utensil according to claim 1, characterized in that, There is a gap between the inner wall of the body (610) and the outer wall of the fan device (300), and the size of the fin (620) is larger than the gap between the body (610) and the fan device (300) along the direction from the inner wall of the body (610) to the outer wall of the fan device (300).

3. The cooking utensil according to claim 2, characterized in that, The fan device (300) and the filter device (500) are arranged along the depth direction of the housing (100). In the cross section along the depth direction, the dimension of the fin (620) along the height direction of the housing (100) is greater than the gap dimension between the inner wall of the body (610) and the outer wall of the fan device (300), and the value of the gap dimension is greater than 0.2 mm and less than 0.5 mm.

4. The cooking utensil according to claim 1, characterized in that, From one end near the fan device (300) to the end away from the fan device (300), the dimension of the fin (620) increases along the width direction; near the end of the fan device (300), the dimension of the fin (620) along the width direction is greater than 0.2 mm and less than 0.8 mm; the width direction is the direction from the first side to the second side, the second side being the side of the filter device (500) away from the fan device (300), and the second side is opposite to the first side.

5. The cooking utensil according to claim 4, characterized in that, The dimension of the fin (620) near the fan device (300) along the width direction is greater than one-seventh of the dimension of the fin (620) away from the fan device (300) along the width direction, and the dimension of the fin (620) near the fan device (300) along the width direction is less than one-third of the dimension of the fin (620) away from the fan device (300) along the width direction.

6. The cooking utensil according to claim 4, characterized in that, The fin (620) is smaller in the width direction than the body (610) in the width direction; the fin (620) is located in the middle region of the body (610) in the width direction.

7. The cooking utensil according to any one of claims 1 to 6, characterized in that, The main body (610) is fitted onto the inner wall of the mounting opening (510), with a portion of the main body (610) located inside the second air cavity and the remainder of the main body (610) located outside the second air cavity.

8. The cooking utensil according to any one of claims 1 to 6, characterized in that, The filter device (500) is provided with a first limiting structure (520) on its first side, and the main body (610) is provided with a second limiting structure (614) that matches the first limiting structure (520). The second limiting structure (614) is correspondingly connected to the first limiting structure (520).

9. The cooking utensil according to any one of claims 1 to 6, characterized in that, The main body (610) is provided with a first chamfered portion (615), which surrounds the inner wall of the mounting opening (510); the fan device (300) is provided with a second chamfered portion at one end near the filter device (500).

10. A cooking utensil, characterized in that, include: A housing (100) having a cooking cavity; a fan device (300) having a first air chamber communicating with the cooking cavity; a filter device (500) having a second air chamber, with a mounting opening (510) on a first side communicating with the second air chamber; the fan device (300) being inserted into the mounting opening (510), and the filter device (500) being slidably connected to the fan device (300); and a sealing structure (600). The sealing structure (600) is located between the filter device (500) and the fan device (300); the sealing structure (600) includes: a body (610) connected to the filter device (500), the body (610) being arranged around the inner wall of the mounting opening (510); and fins (620) surrounding the body (610) on the side facing the fan device (300), the fins (620) being configured to elastically deform and seal the gap between the body (610) and the fan device (300).

Images