Support, air outlet assembly and cooking equipment

Abstract

The utility model discloses a support, an air outlet assembly and cooking equipment. The support is provided with a first side and a second side which are oppositely arranged, the support comprises a first lower convex part, a second lower convex part and a third lower convex part which are sequentially connected, in the direction of the rotating axis, the second lower convex part is closer to the second side of the support than the first lower convex part, and the third lower convex part is closer to the second side of the support than the second lower convex part; the third lower protruding part is located on the inner periphery of the second lower protruding part, and the second lower protruding part is located on the inner periphery of the first lower protruding part. By means of the mode, the axial size of the support can be reduced when components are installed on the support.

Description

Technical Field

[0001] This application relates to the field of kitchen heating technology, and in particular to brackets, air outlet components and cooking equipment. Background Technology

[0002] In related technologies, cooking equipment needs to blow hot air to heat food evenly. As cooking equipment becomes more integrated and complex, new demands are placed on the efficient use of internal space. Currently, the hot air components in cooking equipment are relatively large, occupying a significant amount of space and reducing the overall space utilization rate. Utility Model Content

[0003] Embodiments of this application provide a bracket, an air outlet assembly, and a cooking device, which can reduce the axial dimension of the air outlet assembly.

[0004] In a first aspect, embodiments of this application provide a bracket. The bracket has a first side and a second side disposed opposite to each other. The bracket includes a first lower protrusion, a second lower protrusion, and a third lower protrusion connected in sequence. In the direction of the rotation axis, the second lower protrusion is closer to the second side of the bracket than the first lower protrusion, and the third lower protrusion is closer to the second side of the bracket than the second lower protrusion. The third lower protrusion is located inside the second lower protrusion, and the second lower protrusion is located inside the first lower protrusion.

[0005] Optionally, the bracket includes a pivot portion and a mounting portion. The pivot portion is used to mount a drive device and has a rotation axis that matches the drive device. The mounting portion is connected to the pivot portion and is mounted on a first side of the mounting portion. The mounting portion has a first lower protrusion, a second lower protrusion, and a third lower protrusion. The pivot portion is mounted on the third lower protrusion. The third lower protrusion is closer to the rotation axis than the second lower protrusion, and the second lower protrusion is closer to the rotation axis than the first lower protrusion.

[0006] The outer periphery of the third lower protrusion is provided with a plurality of second lower protrusions at circumferential intervals; the first lower protrusion is provided with a plurality of first lower protrusions at circumferential intervals; each second lower protrusion is connected to at least one first lower protrusion.

[0007] The bracket also includes a wire clamping section extending from the mounting section;

[0008] At least two pressure lines are provided extending from the first lower protrusion, and the two pressure lines have a height difference in the direction of the rotation axis;

[0009] And / or, at least one pressure line portion is provided extending from the second lower protrusion;

[0010] And / or, at least one pressure line portion is provided extending from the third lower protrusion.

[0011] A limiting part is also provided on the outer periphery of the mounting part to restrict the movement of the insulation component.

[0012] The limiting portion includes a first extension extending from the outer edge of the mounting portion along the rotation axis direction and a second extension extending from the first extension along a direction perpendicular to the rotation axis direction.

[0013] Secondly, embodiments of this application provide an air outlet assembly. The air outlet assembly includes a fixed cover, a bracket, a drive device, and air outlet blades. The fixed cover has a first side and a second side facing each other, and includes a first recessed portion, a second recessed portion, and a third recessed portion connected in sequence. The bracket is mounted on the first side of the fixed cover, and the bracket is correspondingly disposed to the fixed cover. The drive device is mounted on the fixed cover via the bracket, and the drive device is at least partially mounted on the third recessed portion, and the drive device has a rotation axis. The air outlet blades are located on the second side of the fixed cover and are drivenly connected to the drive device.

[0014] Optionally, the fixing cover includes a first recessed portion, a second recessed portion, and a third recessed portion connected in sequence; wherein, the second recessed portion is closer to the second side of the fixing cover than the first recessed portion, and the third recessed portion is closer to the second side of the fixing cover than the second recessed portion; the second recessed portion is closer to the rotation axis than the first recessed portion, and the third recessed portion is closer to the rotation axis than the second recessed portion; the first lower protrusion matches the first recessed portion, the second lower protrusion matches the second recessed portion, and the third lower protrusion matches the third recessed portion; the driving device is at least partially accommodated in the third recessed portion.

[0015] Optionally, the air outlet blade includes a main body and a blade portion surrounding the main body, with the main body corresponding to the third recessed portion; in the direction of the rotation axis, the main body is located on the side of the blade portion away from the first side, and in the radial direction of the air outlet blade, the blade portion is at least partially located on the periphery of the third recessed portion.

[0016] Optionally, the air outlet assembly also includes heat dissipation blades, which are mounted on the first side of the bracket and driven by the drive device; in the direction of the rotation axis, the heat dissipation blades are located on the side of the second recessed portion closer to the first side; in the radial direction of the heat dissipation blades, the heat dissipation blades are located in the inner periphery of the first recessed portion.

[0017] Thirdly, embodiments of this application provide a cooking device. The cooking device includes a main body and the aforementioned air outlet assembly. The air outlet assembly is installed on the main body.

[0018] The beneficial effects of this application are as follows: Unlike the prior art, by setting the positional relationship of the first lower protrusion, the second lower protrusion and the third lower protrusion, the bracket can have a stepped structure. On the one hand, the bracket can form a space to accommodate and install components such as drive devices. On the other hand, it can also make way for the movement or rotation of other components. Using the bracket of the embodiment of this application in the product can reduce the axial dimension of the product. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the cooking device according to an embodiment of this application;

[0020] Figure 2 yes Figure 1 The diagram shown is an exploded view of the cooking device using a single exhaust fan blade.

[0021] Figure 3 yes Figure 1 The diagram shown is an exploded view of the cooking device using dual air outlet blades.

[0022] Figure 4 yes Figure 2 A schematic diagram of the structure of the first side of the air outlet component in the cooking device shown;

[0023] Figure 5 yes Figure 2 A schematic diagram of the structure of the second side of the air outlet component in the cooking device shown;

[0024] Figure 6 yes Figure 5 Schematic diagram of the structure of section AA in the middle;

[0025] Figure 7 yes Figure 5 Schematic diagram of the structure of the center-discharge air blade;

[0026] Figure 8 yes Figure 4 Schematic diagram of the mid-support structure;

[0027] Figure 9 yes Figure 2 A schematic diagram of the structure of the air outlet component with an insulation element in the cooking device shown;

[0028] Figure 10 yes Figure 9 The diagram shows the structural diagram of the bracket in the air outlet assembly;

[0029] Figure 11 yes Figure 6 Enlarged structural diagram at point B;

[0030] Figure 12 yes Figure 11 A schematic diagram of the structure of an embodiment of the central sealing element;

[0031] Figure 13 yes Figure 11 A schematic diagram of another embodiment of the central sealing element;

[0032] Figure 14 yes Figure 11 A schematic diagram of another embodiment of the central sealing element;

[0033] Figure 15 yes Figure 2 A schematic diagram of the structure of an embodiment of the air vent in the cooking device shown;

[0034] Figure 16 yes Figure 15 The diagram shows the airflow of the air outlet shroud as the air outlet blades rotate counterclockwise.

[0035] Figure 17 yes Figure 15 The diagram shows the airflow of the air outlet shroud as the air outlet blades rotate clockwise.

[0036] Figure 18 yes Figure 2 A schematic diagram of the structure of an embodiment of the air vent in the cooking device shown;

[0037] Figure 19 yes Figure 2 A schematic diagram of the structure of an embodiment of the air vent in the cooking device shown;

[0038] Figure 20 yes Figure 19 A simulation diagram of the flow field during the use of the center outlet shroud;

[0039] Figure 21 yes Figure 2 A schematic diagram of the structure of an embodiment of the air vent in the cooking device shown;

[0040] Figure 22 yes Figure 21 A partial structural diagram of the central air outlet and the deflector;

[0041] Figure 23 yes Figure 19 A schematic diagram of the air outlet shroud at various angles;

[0042] Figure 24 yes Figure 2 A schematic diagram of the structure of an embodiment of the air vent in the cooking device shown;

[0043] Figure 25 yes Figure 24 A simulation diagram of the flow field during the use of the center outlet shroud;

[0044] Figure 26 yes Figure 24 A partial structural diagram of the central air outlet and the deflector;

[0045] Figure 27 yes Figure 2 A schematic diagram of the structure of an embodiment of the air vent in the cooking device shown;

[0046] Figure 28 yes Figure 27 The diagram shows the airflow direction when the air outlet hood is in use. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0048] Combination Figures 1 to 3 This application provides a cooking device 1. The cooking device 1 provided in this application embodiment can be a microwave oven, oven, or steam oven. The cooking device 1 provided in this application embodiment can also be an integrated machine combining any two of the three functions of microwaving, steaming, or baking. The cooking device 1 provided in this application embodiment can also be a microwave-steam-bake integrated machine. The cooking device 1 includes a main body 10, an air outlet assembly 20, and an air outlet hood 30.

[0049] Specifically, the main body 10 can install and support various components. Depending on the type of cooking equipment 1, the main body 10 can support microwave components, steam components, or heating components 27, etc. The main body 10 has a cooking cavity 101. The cooking cavity 101 can be used to place food and can contain microwaves, steam, or hot air to heat the food. Optionally, the main body 10 has openings at both ends that communicate with the cooking cavity 101. One opening on one side of the main body 10 can be used to install a door (not shown), which can open or close the opening, allowing a user to put or take food into or out of the cooking cavity 101 through the opening. The opening on the other side of the main body 10 can be used to install an exhaust hood 30 and an exhaust assembly 20. The exhaust hood 30 and the exhaust assembly 20 can cooperate to generate airflow within the cooking cavity 101 to achieve uniform heating of the food.

[0050] In some embodiments, a recessed portion 11 is provided on one side of the main body 10 facing the cooking cavity 101. The recessed portion 11 can accommodate components such as microwave components, steam components, or heating components 27. The recessed portion 11 allows the size of components such as microwave components, steam components, or heating components 27 to be partially accommodated by the cooking cavity 101, thereby reducing the overall space occupied by the cooking device 1.

[0051] Combination Figure 4 and Figure 5The air outlet assembly 20 is installed on the main body 10 of the device. The air outlet assembly 20 can discharge air into the cooking cavity 101 through the air outlet cover 30. The air outlet assembly 20 includes a fixed cover 21, a bracket 22, a drive device 23, and air outlet blades 24. The drive device 23 can be fixed to the fixed cover 21 through the bracket 22. The air outlet blades 24 are drivenly connected to the drive device 23. The air outlet blades 24 can generate airflow by rotating. The airflow generated by the air outlet blades 24 can be guided into the cooking cavity 101 through the air outlet cover 30.

[0052] Combination Figure 15 , Figure 18 , Figure 23 or Figure 26 An air hood 30 is installed on the main body 10 of the device and communicates with the cooking cavity 101. The air hood 30 is installed at one end of the main body 10 with an opening. The air hood 30 is provided with an air outlet 321, through which the airflow generated by the air outlet assembly 20 can enter the cooking cavity 101. The air hood 30 can rectify and guide the airflow generated by the air outlet assembly 20, and then guide the airflow into the cooking cavity 101. The air hood 30 can also form a return air inlet 311 corresponding to the air outlet assembly 20, through which the airflow in the cooking cavity 101 can flow back to the air outlet blades 24. In this way, airflow circulation can be formed in the cooking cavity 101, thereby promoting the flow of heat in the cooking cavity 101 and improving the uniformity of heating of food inside the cooking cavity 101.

[0053] In some embodiments, combined with Figure 2 and Figure 3 The main body 10, air outlet hood 30, and air outlet assembly 20 are separately configured. The main body 10 can be used to install the air outlet hood 30 and the air outlet assembly 20. The air outlet assembly 20 can drive airflow convection through the rotation of the air outlet blades 24. The air outlet hood 30 can integrate and guide the airflow, thereby inputting it into the cooking cavity 101 in a desired manner. By setting the main body 10, air outlet hood 30, and air outlet assembly 20 separately, different air outlet hoods 30 and air outlet assemblies 20 can be selected and equipped during the assembly process. By selecting different air outlet hoods 30 and air outlet assemblies 20, cooking equipment 1 with different configurations can be assembled.

[0054] Figure 2 The illustration shows a cooking device 1 with a single exhaust blade 24. Figure 3The illustration shows a cooking device 1 with dual air outlet blades 24. In some embodiments, there are multiple air outlet hoods 30 and multiple air outlet assemblies 20. The air outlet hood 30 may include an air outlet hood 30 with a single return air inlet 311 or an air outlet hood 30 with multiple return air inlets 311. The air outlet hood 30 may also include air outlet hoods 321 of different shapes. The air outlet assembly 20 may include a single fan assembly or a dual fan assembly, etc. The device body 10 is a general-purpose cavity. The device body 10 has the same assembly method with different air outlet hoods 30. The device body 10 also has the same assembly method with different air outlet assemblies 20. In this way, the cooking device 1 can be equipped with air outlet hoods 30 and air outlet assemblies 20 with different configurations. For example, during the assembly process, depending on the required configuration, an air outlet assembly 20 with dual fans and an air outlet cover 30 with dual return air inlets 311 can be installed on the main body 10 of the equipment; or an air outlet assembly 20 with a single fan and an air outlet cover 30 with a single return air inlet 311 can be installed.

[0055] In related technologies, to make the cooking device 1 occupy less space, the size of its components needs to be reduced. The air outlet assembly 20 contains many components, and reducing its size can significantly reduce space occupation and improve space utilization. However, the air outlet assembly 20 needs to rotate to expel air, so how to reduce its size while ensuring normal operation is a technical problem that needs to be considered. To improve the above-mentioned technical problem, this application can provide the following embodiments.

[0056] Combination Figures 4 to 7 , Figure 4 The structure of the first side of the fixing cover 21 is shown. Figure 5 The structure of the second side of the fixing cover is illustrated. In some embodiments, the air outlet assembly 20 includes a fixing cover 21, a bracket 22, a drive device 23, and air outlet blades 24. The fixing cover 21 has a first side and a second side facing each other. The fixing cover 21 can be used to fix the various components of the air outlet assembly 20, and the fixing cover 21 can also be assembled with the device body 10. The bracket 22, the drive device 23, and the air outlet blades 24 can be mounted on the device body 10 through the fixing cover 21. Different components can be assembled on both sides of the fixing cover 21, and the fixing cover 21 can act as a spacer to reduce the impact of the components on each other during operation.

[0057] A bracket 22 is mounted on the first side of a fixed cover 21. A drive unit 23 is mounted on the fixed cover 21 via the bracket 22. The drive unit 23 has a rotation axis, around which the air outlet blade 24 rotates. The air outlet blade 24 is located on the second side of the fixed cover 21 and is driven by the drive unit 23. The drive shaft 2321 of the drive unit 23 on the first side can pass through the fixed cover 21 and be driven by the air outlet blade 24 on the second side. The air outlet blade 24 can drive airflow by rotating, thereby realizing the air outlet assembly 20. Optionally, the air outlet blade 24 is a radial blade, and when the air outlet blade 24 rotates, the airflow can be discharged in a direction perpendicular to the rotation axis.

[0058] In some embodiments, the air outlet assembly 20 further includes a heating assembly 27 surrounding the air outlet blades 24.

[0059] Based on the above embodiment, the fixing cover 21 includes a first recessed portion 211, a second recessed portion 212, and a third recessed portion 213 connected in sequence. The second recessed portion 212 is closer to the second side than the first recessed portion 211, and the third recessed portion 213 is also closer to the second side than the second recessed portion 212. The second recessed portion 212 is closer to the rotation axis than the first recessed portion 211, and the third recessed portion 213 is also closer to the rotation axis than the second recessed portion 212. Optionally, the first recessed portion 211 is annular, the second recessed portion 212 is annular, and the third recessed portion 213 is disc-shaped. The first recessed portion 211 surrounds the second recessed portion 212, and the second recessed portion 212 surrounds the third recessed portion 213.

[0060] Optionally, the fixing cover 21 further includes a fixing cover body, the fixing cover body surrounding a first recessed portion 211, the first recessed portion 211 surrounding a second recessed portion 212, and the second recessed portion 212 surrounding a third recessed portion 213. In some embodiments, the fixing cover 21 is formed by stamping sheet metal to form the first recessed portion 211, the second recessed portion 212, and the third recessed portion 213, while the portion of the fixing cover 21 that does not require stamping forms the fixing cover body. The first recessed portion 211 is closer to the second side than the fixing cover body. In other words, the first recessed portion 211, the second recessed portion 212, and the third recessed portion 213 of this application are sequentially closer to the second side than the fixing cover body.

[0061] In the above manner, the first recessed portion 211, the second recessed portion 212, and the third recessed portion 213 can form a stepped structure. The first recessed portion 211, the second recessed portion 212, and the third recessed portion 213 can respectively provide space for the installation of the air blade 24 and the drive device 23.

[0062] Specifically, the drive unit 23 is at least partially accommodated in the third recessed portion 213. The third recessed portion 213 is located further away from the first side than the first recessed portion 211 and the second recessed portion 212. The third recessed portion 213 can create a larger space on the first side. By accommodating at least a portion of the drive unit 23 in the third recessed portion 213, the axial dimension of the drive unit 23 can be accommodated by the downward movement of the third recessed portion 213. Furthermore, the space formed by the second recessed portion 212 on the first side can be used to accommodate at least other parts of the drive unit 23, thus achieving the technical effect of making way for the drive unit 23. The first recessed portion 211 can be used to fix the bracket 22 by fasteners such as screws or rivets. In this way, the axial dimension of the air outlet assembly 20 can be reduced, and on this basis, the clearance structure formed by the first recessed portion 211, the second recessed portion 212 and the third recessed portion 213 enables the drive unit 23 to operate normally and reduces interference during the operation of the drive unit 23.

[0063] Specifically, in some embodiments, the air outlet assembly 20 further includes heat dissipation blades 25, which are mounted on the first side of the fixed cover 21 and driven by the drive device 23. The drive device 23 can drive the heat dissipation blades 25 to rotate, and the heat dissipation blades 25 can dissipate heat for the drive device 23 by rotating. In the direction of the rotation axis, the heat dissipation blades 25 are at least partially located on the side of the second recessed portion 212 closer to the first side. In the radial direction of the heat dissipation blades 25, the heat dissipation blades 25 are located in the inner periphery of the first recessed portion 211. In this way, the space formed by the second recessed portion 212 close to the first side can make way for the heat dissipation blades 25, reducing interference between the fixed cover 21 and the heat dissipation blades 25. By setting the second recessed portion 212 to make way for the heat dissipation blades 25, the heat dissipation blades 25 can be positioned closer to the second side on the first side, which helps to reduce the axial dimension of the air outlet assembly 20.

[0064] In some embodiments, the air outlet blade 24 includes a main body 241 and a blade portion 242 surrounding the main body 241, with the main body 241 corresponding to the third recessed portion 213. The main body 241 can be driven to connect with the drive device 23 at the third recessed portion 213. Optionally, the main body 241 can be configured to conform to the shape of the third recessed portion 213.

[0065] In the direction of the rotation axis, the main body 241 is located on the side of the blade portion 242 away from the first side. In the radial direction of the outlet blade 24, the blade portion 242 is at least partially located on the periphery of the third recessed portion 213. The blade portion 242 is provided with blades. The thickness of the blade along the rotation axis is greater than the thickness of the main body 241 along the rotation axis (in combination). Figure 7The blades can be components formed by stamping that extend in the direction of the rotation axis. The body portion 241 with a smaller thickness can correspond to the third recessed portion 213, which is further away from the first side (compared to the second recessed portion 212 and the first recessed portion 211). The blade portion 242 with a larger thickness can be accommodated on the periphery of the third recessed portion 213, that is, on the side of the second recessed portion 212 and the first recessed portion 211 closer to the second side. In this way, the blade portion 242 with a considerable thickness in the air outlet blade 24 can be accommodated in a position close to the first side, which is beneficial to reducing the axial dimension of the air outlet assembly 20. Furthermore, by providing the first recessed portion 211 and the second recessed portion 212, more space can be left for the blade portion 242 in the radial direction, thereby increasing the radial length of the blade on the blade portion 242, which is beneficial to improving the air outlet efficiency of the air outlet assembly 20. Optionally, the ratio of the outer diameter to the inner diameter of the air outlet blade 24 is greater than 1.5. For example, the ratio of the inner diameter to the outer diameter of the air outlet blade 24 can be 1.6, 1.8, 1.88, or 1.9. The outer diameter of the air outlet blade 24 refers to the radial distance from the outer periphery of the air outlet blade 24 to the axis of rotation. The inner diameter of the air outlet blade 24 refers to the diameter of the main body 241.

[0066] This application provides a bracket 22. The bracket 22 has a first side and a second side disposed opposite to each other. The bracket 22 includes a first lower protrusion 2221, a second lower protrusion 2222, and a third lower protrusion 2223 connected in sequence. In the direction of the rotation axis, the second lower protrusion 2222 is closer to the second side of the bracket 22 than the first lower protrusion 2221, and the third lower protrusion 2223 is closer to the second side of the bracket 22 than the second lower protrusion 2222. The third lower protrusion 2223 is located inside the second lower protrusion 2222, and the second lower protrusion 2222 is located inside the first lower protrusion 2221.

[0067] In some embodiments, the bracket 22 includes a pivot portion 221 and a mounting portion 222. The pivot portion 221 is used to mount a drive device 23 and has a rotation axis that matches the drive device 23. The mounting portion 222 is connected to the pivot portion 221, and the pivot portion 221 is mounted on a first side of the mounting portion 222. The mounting portion 222 has a first lower protrusion 2221, a second lower protrusion 2222, and a third lower protrusion 2223. The pivot portion 221 is mounted on the third lower protrusion 2223. The third lower protrusion 2223 is closer to the rotation axis than the second lower protrusion 2222, and the second lower protrusion 2222 is closer to the rotation axis than the first lower protrusion 2221.

[0068] By setting the positional relationship of the first lower protrusion 2221, the second lower protrusion 2222, and the third lower protrusion 2223 in the above manner, the bracket 22 can have a stepped structure. On the one hand, the bracket 22 can form a space to accommodate and install components such as the drive device 23; on the other hand, it can make way for the movement or rotation of other components. Using the bracket 22 of this application embodiment in a product can reduce the axial dimension of the product. The embodiment of the bracket 22 will be described in more detail below with reference to the air outlet assembly 20.

[0069] In some embodiments, combined with Figure 6 and Figure 8 The bracket 22 includes a pivot portion 221 and a mounting portion 222 connected to each other. The mounting portion 222 is correspondingly arranged with respect to the first recessed portion 211, the second recessed portion 212, and the third recessed portion 213. The corresponding arrangement of the mounting portion 222 with respect to the first recessed portion 211, the second recessed portion 212, and the third recessed portion 213 means that the mounting portion 222 is conformally arranged to the stepped structure formed by the first recessed portion 211, the second recessed portion 212, and the third recessed portion 213. In this way, the shape of the bracket 22 can match the shape of the fixing cover 21, thereby reducing the space occupied by the bracket 22 in the axial direction.

[0070] Specifically, the mounting part 222 includes a first lower protrusion 2221, a second lower protrusion 2222, and a third lower protrusion 2223 connected in sequence. A first recessed part 211, a second recessed part 212, and a third recessed part 213 are respectively configured to correspond to the first lower protrusion 2221, the second lower protrusion 2222, and the third lower protrusion 2223 (that is, the first lower protrusion 2221 matches the first recessed part 211, the second lower protrusion 2222 matches the second recessed part 212, and the third lower protrusion 2223 matches the third recessed part 213). In other words, the second lower protrusion 2222 is closer to the second side than the first lower protrusion 2221, and the third lower protrusion 2223 is closer to the second side than the second lower protrusion 2222. The second lower protrusion 2222 is closer to the rotation axis than the first lower protrusion 2221, and the third lower protrusion 2223 is closer to the rotation axis than the second lower protrusion 2222. The mounting part 222 can be the aforementioned structure formed by a part that is integrally plate-shaped through processes such as stamping, injection molding, or bending.

[0071] In some embodiments, the third lower protrusion 2223 is plate-shaped. The pivot portion 221 extends from the side of the third lower protrusion 2223 away from the fixing cover 21 in a direction away from the fixing cover 21. The third lower protrusion 2223 may also be provided with a mounting space for a circuit board. On the one hand, since the third lower protrusion 2223 is a component directly connected to the pivot portion 221, and the pivot portion 221 is a component directly connected to the drive device 23, the third lower protrusion 2223 needs to have sufficient strength to support the pivot portion 221 and the drive device 23. On the other hand, since the third lower protrusion 2223 is provided corresponding to the innermost third recessed portion 213, the size (or mounting area) of the third lower protrusion 2223 is limited; therefore, the plate-shaped arrangement of the third lower protrusion 2223 can have sufficient strength to support the pivot portion 221 and the drive device 23.

[0072] Based on this, the second lower protrusion 2222 and the first lower protrusion 2221, located on the relatively outer periphery, have sufficient installation area. Therefore, multiple second lower protrusions 2222 can be arranged at intervals along the circumferential direction on the outer periphery of the third lower protrusion 2223. In the circumferential direction, multiple first lower protrusions 2221 are also sequentially connected to the outer periphery corresponding to the second lower protrusions 2222 (that is, the first lower protrusions 2221 are arranged at intervals in the circumferential direction and are respectively connected to the second lower protrusions 2222). In the above manner, the first lower protrusions 2221 and the second lower protrusions 2222 can achieve the technical effect of reducing the weight of the bracket 22 while satisfying the requirement of supporting the third lower protrusion 2223.

[0073] In some embodiments, combined with Figure 8 The bracket 22 also includes a wire clamping portion 224 extending from the mounting portion 222. Specifically, at least two wire clamping portions 224 are provided extending from the first lower protrusion 2221. By providing the wire clamping portions 224, the wires connecting the drive device 23 can be fixed and guided, reducing interference of the wires with the operation of the drive device 23. Optionally, the wire clamping portions 224 can extend in a circumferential direction.

[0074] Specifically, the two wire clamping portions 224 have a height difference in the direction of the rotation axis. This height difference allows the wire to extend from above one wire clamping portion 224 towards the rotation axis, and from below the other wire clamping portion 224 towards the rotation axis. This method limits the movement of the wire clamping portions 224 on both sides, reducing their movement and interference with the drive device 23. Optionally, the wire clamping portion 224 that is further away from the second side on the rotation axis is located on the side of the other wire clamping portion 224 that is further away from the rotation axis. That is, the taller wire clamping portion 224 is located further outward. This method keeps the taller wire clamping portion 224 away from the drive device 23, reducing interference between the wire clamping portion 224 and the drive device 23.

[0075] In some embodiments, at least one wire clamping portion 224 extends from the second lower protrusion 2222, with the wire clamping portion 224 extending toward the rotation axis on the side near the second side. At least one wire clamping portion 224 extends from the third lower protrusion 2223, with the wire clamping portion 224 extending toward the rotation axis on the side near the second side. Since a heat dissipation fin 25 is provided on the side of the second lower protrusion 2222 away from the second side, and a drive device 23 is provided on the side of the third lower protrusion 2223 away from the second side, the wire can be confined between the fixing cover 21 and the bracket 22, thereby reducing interference of the wire with the rotation of the heat dissipation fin 25 and the drive device 23.

[0076] Based on the above embodiments, the pressure crease 224 can be configured in the following ways. Specifically, in some embodiments, two first lower protrusions 2221 are spaced apart in the circumferential direction, and the pressure crease 224 is disposed between the two first lower protrusions 2221. Two second lower protrusions 2222 are spaced apart in the circumferential direction, and the pressure crease 224 is disposed between the two second lower protrusions 2222. Two third lower protrusions 2223 are spaced apart in the circumferential direction, and the pressure crease 224 is disposed between the two third lower protrusions 2223.

[0077] In other embodiments, the first lower protrusion 2221, the second lower protrusion 2222, and the third lower protrusion 2223 are provided with wire-passing holes, and the wire-pressing portion 224 extends within the wire-passing holes. Optionally, the method of providing wire-passing holes can be combined with the method of providing two lower protrusions at intervals, which will not be described in detail here.

[0078] In some embodiments, the rotating shaft portion 221 is mounted on the fixed cover 21 via the mounting portion 222, and the drive device 23 is mounted on the rotating shaft portion 221. The rotating shaft portion 221 extends along the direction of the rotation axis. The rotating shaft portion 221 can be hinged to the drive device 23, and rotating components such as the drive shaft 2321 in the drive device 23 can form a rotating pair with the rotating shaft portion 221.

[0079] In some embodiments, combined with Figure 6The drive unit 23 includes a stator 231 and a rotor. The stator 231 is mounted on a rotating shaft portion 221. The rotor includes a drive shaft 2321 and a drive cover 2322 hinged to the rotating shaft portion 221. The drive shaft 2321 is located inside the stator 231 and passes through the rotating shaft portion 221. The drive shaft 2321 is drivenly connected to the air outlet blades 24. The drive shaft 2321 can extend through a third recessed portion 213 to a second side and be drivenly connected to the air outlet blades 24. The drive cover 2322 is located around the stator 231 and is located on a first side. The drive cover 2322 is drivenly connected to the heat dissipation blades 25 located on the first side. The heat dissipation blades 25 can be at least partially fitted over the drive cover 2322 and fixedly connected to the drive cover 2322. The stator 231 can drive the drive shaft 2321 and the drive cover 2322 to rotate synchronously, thereby driving the heat dissipation fins 25 located on the first side to rotate and the air outlet fins 24 located on the second side to rotate, respectively. Optionally, the drive shaft 2321 and the drive cover 2322 are fixedly connected. The drive shaft 2321 and the drive cover 2322 can be rotatably connected simultaneously through the hinge between the drive shaft 2321 and the rotating shaft portion 221. The stator 231 can drive the drive shaft 2321 to rotate by driving the drive cover 2322 to rotate, or the stator 231 can drive the drive cover 2322 to rotate by driving the drive shaft 2321 to rotate. Optionally, the stator 231 is a coil and the rotor is a magnetic element. The drive shaft 2321 and / or the drive cover 2322 are magnetic elements.

[0080] In some embodiments, a bracket 22 and an air outlet blade 24 correspond to a first recessed portion 211, a second recessed portion 212, and a third recessed portion 213. A bracket 22, an air outlet blade 24, a first recessed portion 211, a second recessed portion 212, and a third recessed portion 213 constitute a set of air outlet units, and at least one air outlet unit is mounted on the fixing cover 21. The air outlet assembly 20 can be an air outlet assembly 20 with only one air outlet blade 24 or an air outlet assembly 20 with two air outlet blades 24. When there is only one air outlet blade 24, the fixing cover 21 has one air outlet unit. When there are two air outlet blades 24, the fixing cover 21 can have two air outlet units.

[0081] Combination Figure 9 and Figure 10In some embodiments, a heat-insulating element 28 is also provided on the first side of the fixed cover 21. The heat-insulating element 28 can serve as a heat insulation component. On the one hand, the heat-insulating element 28 can limit the leakage of heat from the fixed cover 21 side of the cooking cavity 101, thereby improving the thermal efficiency of the cooking device 1. On the other hand, the heat-insulating element 28 can reduce the heat conducted from the cooking cavity 101 to the outer shell of the cooking device 1, thereby reducing the temperature of the outer shell of the cooking device 1 and reducing the risk of burns. The heat-insulating element 28 can be heat-insulating cotton. Specifically, the material of the heat-insulating element 28 can be ceramic fiber, porous alumina blanket, fiber cotton, heat-insulating fiberboard, etc., and is not specifically limited here.

[0082] The bracket 22 has a limiting part 223 on its outer edge. The insulation member 28 has a clearance space. The orthographic projection of the drive device 23 onto the insulation member 28 is located within the clearance space. The limiting part 223 is used to abut against the insulation member 28 to restrict its movement. Since the drive device 23 needs to drive the heat dissipation fins 25 and the air outlet fins 24 to rotate, interference between the insulation member 28 and the drive device 23 would cause serious problems. By providing the limiting part 223, the deformation of the insulation member 28 toward the drive device 23 can be limited, thereby reducing interference between the insulation member 28 and the drive device 23 during operation.

[0083] In some embodiments, the outer edge of the support 22 is provided with a plurality of circumferentially spaced limiting portions 223. The insulation member 28 has a clearance space to accommodate at least the drive device 23 and the heat dissipation fins 25. The insulation member 28 forms a structure that surrounds the drive device 23 and the heat dissipation fins 25. In this case, by providing a plurality of limiting portions 223 axially on the outer edge of the support 22, the insulation member 28 can be prevented from approaching the rotation axis in the circumferential direction of the drive device 23 and the heat dissipation fins 25, thereby reducing the interference of the insulation member 28 with other components.

[0084] In some embodiments, the heat dissipation fins 25 are projected onto the insulation member 28 within the clearance space. The inner wall of the clearance space is projected onto the periphery of the second recessed portion 212. The heat dissipation fins 25 are accommodated on the side of the second recessed portion 212 closest to the first side. Positioning the inner wall of the clearance space of the insulation member 28 on the periphery of the second recessed portion 212 allows the insulation member 28 to be held on the outer periphery of the heat dissipation fins 25, reducing interference between the insulation member 28 and the heat dissipation fins 25. The limiting portion 223 is located on the side of the first recessed portion 211 furthest from the second side, and is located on the periphery of the second recessed portion 212. The limiting portion 223 is further away from the fixing cover 21 than the first lower protrusion 2221. In this manner, the limiting portion 223 prevents the insulation member 28 from approaching the heat dissipation fins 25, further reducing the possibility of interference between the insulation member 28 and the heat dissipation fins 25. Optionally, the limiting portion 223 may further be located on the periphery of the first recessed portion 211.

[0085] In some embodiments, the mounting portion 222 of the bracket 22 includes second lower protrusions 2222 spaced apart in the circumferential direction, and first lower protrusions 2221 spaced apart in the circumferential direction and respectively connected to the second lower protrusions 2222. Further, limiting portions 223 are spaced apart in the circumferential direction and respectively connected to the first lower protrusions 2221.

[0086] In some embodiments, combined with Figure 10 The limiting portion 223 includes a first extension 2231 extending from the outer edge of the bracket 22 along the thickness direction of the insulation member 28, and a second extension 2232 extending from the first extension 2231 along the surface of the insulation member 28 away from the fixing cover 21. The first extension 2231 abuts against the inner wall of the clearance space, and the second extension 2232 abuts against the surface of the insulation member 28. The first extension 2231 can limit the movement of the insulation member 28 toward the rotation axis, and the second extension 2232 can limit the movement of the insulation member 28 away from the fixing cover 21. By providing the first extension 2231 and the second extension 2232, the movement of the insulation member 28 can be limited in different directions.

[0087] In some embodiments, the contact area between the limiting portion 223 and the insulation member 28 gradually increases in the direction away from the driving device 23. Specifically, the width of the limiting portion 223 gradually increases in the direction away from the driving device 23. Alternatively, the circumferential extension length of the limiting portion 223 gradually increases in the direction away from the driving device 23. In this way, the limiting capability of the insulation member 28 can be gradually increased by increasing the contact area in the direction away from the driving device 23. This increases the limiting capability of the insulation member 28 without affecting the normal operation of the driving device 23.

[0088] In some embodiments, combined with Figure 11 , Figure 11 yes Figure 6 Enlarged view at point B. A seal 26 is provided between the bracket 22 and the fixed cover 21. The seal 26 prevents leakage of hot air or electromagnetic waves. Specifically, the seal 26 is located between the bracket 22 and the third recessed portion 213. Potential leakage points in the fixed cover 21 mainly include the mounting holes and the through holes where the drive unit 23 connects to the exhaust blade 24. The sealing of the mounting holes can be improved by interference fit or sealant application. However, the through holes where the drive unit 23 connects to the exhaust blade 24 are not suitable for sealing using the above methods because they require the drive shaft 2321 to pass through and rotate. By providing the seal 26 between the bracket 22 and the third recessed portion 213, the holes through which the drive shaft 2321 passes can be sealed, reducing leakage of hot air or electromagnetic waves. Optionally, the seal 26 is located between the third lower protrusion 2223 and the third recessed portion 213.

[0089] In some embodiments, combined with Figure 12 , Figure 13 and Figure 14 The sealing element 26 includes an air seal portion 261 and a magnetic seal portion 262. Hot air, steam, or electromagnetic waves may be present in the cooking appliance 1. The sealing element 26 needs to reduce not only airflow leakage but also electromagnetic wave leakage. In this embodiment, the air seal portion 261 reduces airflow leakage, and the magnetic seal portion 262 reduces electromagnetic wave leakage. At least a portion of the air seal portion 261 is located on the side of the magnetic seal portion 262 near the third recessed portion 213 and on the side near the support 22, respectively; in other words, the air seal portion 261 is located at least on both sides of the magnetic seal portion 262 in the direction of rotation axis. The air seal portion 261 abuts against the third recessed portion 213 and the support 22. The support 22 and the third recessed portion 213 are spaced apart in the direction of rotation axis. By positioning the air seal portion 261 on both sides of the magnetic seal portion 262, the sealing element 26's ability to reduce airflow leakage is increased. The air seal portion 261 can be made of materials such as silicone or rubber, and the magnetic seal portion 262 can be made of metal. The hardness of the air seal 261 is less than that of the magnetic seal 262. When the seal 26 is sandwiched between the bracket 22 and the third recessed portion 213, the air seal 261 can deform under pressure to fill the gap between the bracket 22 and the third recessed portion 213 as much as possible, thereby increasing the seal 26's ability to reduce airflow leakage.

[0090] In some embodiments, the magnetic seal portion 262 is embedded in the gas seal portion 261, and the gas seal portion 261 also covers the side of the magnetic seal portion 262 away from the rotation axis, while the side of the magnetic seal portion 262 near the rotation axis is exposed. In other embodiments, the magnetic seal portion 262 is embedded in the gas seal portion 261, and the gas seal portion 261 also covers the side of the magnetic seal portion 262 near the rotation axis, while the side of the magnetic seal portion 262 away from the rotation axis is exposed. The seal 26 formed in this way is easy to assemble; for example, in the case of injection molding, the gas seal portion 261 can be formed by injection molding the magnetic seal portion 262 as a core. Even if the magnetic seal portion 262 and the gas seal portion 261 are formed separately, they can be assembled with the magnetic seal portion 262 by deformation of the gas seal portion 261.

[0091] In some embodiments, the gas seal 261 covers the magnetic seal 262, with the gas seal 261 covering each side of the magnetic seal 262. The complete coverage of the magnetic seal 262 by the gas seal 261 reduces friction between the high-hardness magnetic seal 262 and other components, which is beneficial for production and assembly.

[0092] In some embodiments, combined with Figure 11The bracket 22 extends toward the fixing cover 21 and is provided with a first engaging portion 2223A, while the fixing cover 21 extends toward the bracket 22 and is provided with a second engaging portion 213A. One of the first engaging portion 2223A and the second engaging portion 213A engages the outer periphery of the sealing member 26, and the other engages the inner periphery of the sealing member 26. By providing the first engaging portion 2223A and the second engaging portion 213A, the movement of the sealing member 26 away from the rotation axis and the movement towards the rotation axis can be restricted, thereby engaging the sealing member 26 between the bracket 22 and the fixing cover 21. Optionally, the first engaging portion 2223A is provided on the side of the third lower protrusion 2223 near the fixing cover 21, and the second engaging portion 213A is provided on the side of the third lower recess 213 near the bracket 22.

[0093] In summary, by setting the first recessed portion 211, the second recessed portion 212, and the third recessed portion 213, this application enables the dimensions of the fan blade 24, the heat dissipation blade 25, and the drive device 23 in the axial direction to be distributed in the direction perpendicular to the rotation axis, so that the thickness of different components in the axial direction can be accommodated by the first recessed portion 211, the second recessed portion 212, and the third recessed portion 213 respectively, thereby reducing the axial dimension of the air outlet assembly 20.

[0094] In related technologies, a recessed portion 11 is provided on one side of the main body 10 facing the cooking cavity 101. The recessed portion 11 can accommodate components such as microwave components, steam components, or heating components 27. The recessed portion 11 obstructs the airflow from the exhaust hood 30, resulting in a decrease in the uniformity of airflow within the cooking cavity 101. To improve the above-mentioned technical problems, this application can provide the following embodiments.

[0095] It should be noted that the embodiments provided in this application also achieve the technical effect of improving airflow uniformity without the sinking portion 11. This application has made a targeted design for the case with the sinking portion 11, and compared with the solutions in related technologies, the embodiments of this application have a better effect on improving airflow uniformity for the case with the sinking portion 11.

[0096] Reference Figures 15 to 28 As illustrated, this application embodiment provides an air outlet cover 30. The air outlet cover 30 includes a main body 31 and a side plate 32. The main body 31 is provided with a return air port 311. The side plate 32 is disposed on at least one side of the main body 31 and is connected to the main body 31. The side plate 32 is provided with an air outlet 321. Through the air outlet 321 of the side plate 32, the airflow generated by the air outlet blades 24 of the cooking device 1 can be introduced into the cooking cavity 101, and through the return air port 311 of the main body 31, the airflow in the cooking cavity 101 can flow back to the air outlet blades 24 from the return air port 311. In this way, an airflow circulation can be formed within the cooking cavity 101.

[0097] For ease of description, the mainboard body 31 has different first reference directions (illustrated in conjunction with the X direction in the figure) and second reference directions (illustrated in conjunction with the Y direction in the figure). At least one side of the mainboard body 31 in the second reference direction is configured to correspond to the side of the device body 10 where the recessed portion 11 is located. Optionally, the first reference direction is the length direction of the mainboard body 31, and the second reference direction is the width direction of the mainboard body 31. Optionally, the first and second reference directions are perpendicular. Optionally, when the cooking device 1 is in use, the second reference direction is parallel to the direction of gravity.

[0098] Example 1:

[0099] Combination Figures 15 to 17 In this embodiment, the side plate 32 is disposed on the adjacent side of the main plate 31 and the recessed portion 11. In this way, the side plate 32 with the air outlet 321 can bypass the obstruction of the recessed portion 11, so that the airflow of the air outlet 321 can be smoothly discharged into the cooking cavity 101, thereby promoting the flow of air in the cooking cavity 101 and improving the uniformity of airflow.

[0100] The side plate 32 is disposed on at least one side in the first reference direction. The side plate 32 being disposed on one side in the first reference direction can bypass the recessed portion 11 disposed on one side in the second reference direction, thereby improving the uniformity of airflow.

[0101] The air outlet 321 has a length direction and a width direction. The length direction of the air outlet 321 is parallel to the perpendicular direction of the arrangement direction of the main body 31 and the side plate 32. By setting the length direction of the side plate 32 to be parallel to the perpendicular direction of the arrangement direction of the main body 31 and the side plate 32, the air outlet 321 can be matched with the cooking cavity 101 to increase the uniformity of airflow.

[0102] Furthermore, in this embodiment, the air outlet 321 provides less constraint on the airflow along the second reference direction, but more constraint on the airflow along the first reference direction. In this case, the airflow along the second reference direction, being close to the tangential direction of the outlet blades 24, is affected by the rotational direction of the outlet blades 24. Therefore, the air outlet 321 formed in the above manner can also change the direction of the airflow exiting through the air outlet 321 by rotating the outlet blades 24 counterclockwise or clockwise, thereby further increasing the uniformity of the airflow. Combined with... Figure 16 and 17By changing the rotation direction of the air outlet blades 24, air can be selectively directed to different parts of the cooking cavity 101 to increase the uniformity of airflow (the same applies to the dual-fan embodiment). Optionally, the length direction of the air outlet 321 is consistent with the second reference direction. Optionally, the main board extends in the same direction along the outer edge of the main board body 31.

[0103] In this embodiment, an auxiliary plate 33 is provided on at least one side in the second reference direction, and the auxiliary plate 33 has an auxiliary air outlet 331. The auxiliary air outlet 331 can discharge a portion of the airflow generated by the air outlet blades 24 into the cooking cavity 101. Since the auxiliary plate 33 and the side plate 32 are in different directions, the airflow generated by the air outlet blades 24 can be fully utilized in this manner. By setting the area of ​​the auxiliary air outlet 331 to be smaller than the area of ​​the air outlet 321, the wind pressure of the air outlet 321 can be increased, so that most of the airflow exits from the air outlet 321, which is beneficial to increasing the uniformity of airflow through the arrangement of the side plate 32.

[0104] In some embodiments, the main body 31 has opposing front and rear sides in its thickness direction, and the side plate 32 is inclined rearward from the outer edge of the main body 31 in a direction away from the main body 31. Optionally, the auxiliary plate 33 is inclined rearward from the outer edge of the main body 31. In this way, the air outlet hood 30 and the fixed cover 21 can enclose a space to accommodate the air outlet blades 24, and the airflow generated by the air outlet blades 24 can be discharged from the side plate 32 and the auxiliary plate 33 to the cooking cavity 101.

[0105] In some embodiments, the main body 31 has opposing front and rear sides in its thickness direction. On the side panel 32, a guide plate 322 is provided on the side of the air outlet 321 away from the main body 31 in the width direction. The guide plate 322 extends obliquely from the side panel 32 towards the front and closer to the main body 31. Optionally, the guide plate 322 is configured to extend from the side panel 32 towards the corresponding side wall of the device body 10.

[0106] The deflector 322 guides the airflow from the outlet 321. By setting the deflector 322, the airflow from the outlet 321 can be directed towards the front of the main body 31. In other words, the deflector 322 can work with the outlet 321 to change the direction of the airflow, thereby improving the uniformity of the airflow inside the cooking cavity 101.

[0107] In some embodiments, the air outlet 321, in conjunction with the baffle 322, forms an air outlet direction facing the side wall of the equipment body 10. In this way, the airflow from the baffle 322 and the air outlet 321 can bounce off the side wall of the equipment body 10 and then flow to the return air inlet 311, which helps increase airflow uniformity. Furthermore, the angle between the air outlet direction formed by the baffle 322 and the air outlet 321 and the side wall is an obtuse angle, which helps reduce airflow resistance and makes it easier for the airflow to flow towards the front end. If the baffle 322 is not provided, the angle between the airflow outlet direction and the side wall will be close to a right angle, resulting in excessive obstruction of the airflow by the side wall and affecting airflow uniformity.

[0108] In some embodiments, at least one side of the air outlet 321 on the side plate 32 along its length is provided with an auxiliary flow plate, which is connected to the guide plate 322 and extends from the side plate 32 toward the front. The auxiliary flow plate can block and guide the air outlet on both sides along its length, so that more airflow can be guided by the guide plate 322.

[0109] In some embodiments, in the width direction of the air outlet 321, the height of the auxiliary vane relative to the side plate 32 gradually increases in the direction close to the guide vane 322. This arrangement enhances the guiding effect of the guide vane 322 on the airflow.

[0110] In some embodiments, at least two rows of air outlets 321 are provided in the width direction of the air outlet 321, with the area of ​​the air outlet 321 on the side closer to the main board 31 being smaller than the area of ​​the air outlet 321 on the side farther from the main board 31. The number of air outlets 321 in the row closer to the main board 31 is greater than the number of air outlets 321 in the row farther from the main board 31. Since the air outlets 321 on the side closer to the main board 31 are closer to the air outlet blades 24 and closer to the air outlet 321, the air outlets 321 arranged in this way can match the airflow gradient, thereby balancing the airflow volume of the two rows of air outlets 321 and improving the uniformity of airflow.

[0111] Example 2:

[0112] Combination Figures 18 to 23 In this embodiment, the side plate 32 is disposed on the adjacent side of the main plate 31 and the recessed portion 11. In this way, the side plate 32 with the air outlet 321 can bypass the obstruction of the recessed portion 11, so that the airflow of the air outlet 321 can be smoothly discharged into the cooking cavity 101, thereby promoting the flow of air in the cooking cavity 101 and improving the uniformity of airflow.

[0113] The air outlet 321 has a length direction and a width direction, and the length direction of the air outlet 321 is inclined relative to the first reference direction. Due to the inclination of the air outlet 321, the air outlet position will gradually move away from one side of the motherboard 31 in the direction away from the motherboard 31, thereby reducing the influence of the corresponding component on the air outlet.

[0114] Specifically, the length direction of the air outlet 321 is inclined to one side of the second reference direction in the direction away from the main body 31. In the cooking appliance 1, the length direction of the air outlet 321 is inclined to the side away from the recessed portion 11 in the direction away from the main body 31. In this way, the air outlet position can be gradually moved away from the recessed portion 11 in the direction away from the main body 31, thereby reducing the obstruction of airflow by the recessed portion 11.

[0115] Furthermore, the airflow direction generated by the air outlet blade 24 during rotation is not perpendicular to the extension direction (second reference direction) of the side plate 32. The airflow generated by the air outlet blade 24 is tilted at a certain angle and blows towards the side plate 32. By tilting the length direction of the air outlet 321, the direction of the air outlet 321 can be matched with the airflow direction generated by the air outlet blade 24, thereby more conveniently guiding the airflow into the cooking cavity 101.

[0116] In some implementations, combined Figure 23 The side panel 32 has an air outlet area. The air outlet area can be a single piece of the side panel 32, or it can be an area formed by sheet metal or bending of the side panel 32 to create an air outlet 321. There is no specific limitation here. Optionally, the air outlet area can also be an area formed by extending the air outlet 321 from one end of the side panel 32 to the air outlet 321 at the other end.

[0117] Combination Figure 23 Multiple air outlets 321 are spaced apart within the air outlet area. The angle of inclination of each air outlet 321 relative to the first reference direction is ∠A. The angle between the line connecting the geometric center of the air outlet area and the geometric center of the return air inlet 311 and the first reference direction is ∠D. The angle between the line connecting the geometric center of the air outlet area and the geometric center of the return air inlet 311 and the tangent between the geometric center of the air outlet area and the outer edge of the return air inlet 311 is ∠C. These parameters satisfy ∠A=(90°±20°)-∠C-∠D.

[0118] Specifically, ∠C and ∠D can be calculated using trigonometric functions based on various dimensions. For example, the distance H is the projection of the geometric center of the air outlet area and the geometric center of the return air inlet 311 onto the second reference direction, the distance L is the projection of the geometric center of the air outlet area and the geometric center of the return air inlet 311 onto the first reference direction, and the radius R is the return air inlet 311. In this case, the above parameters satisfy... The above method allows the tilt angle of the air outlet 321 to be matched with the position of the return air outlet 311. Since the return air outlet 311 is correspondingly set with the air outlet blade 24, the above method allows the tilt angle of the air outlet 321 to be matched with the position of the air outlet blade 24, thereby enabling the air outlet 321 to more effectively deliver the airflow generated by the air outlet blade 24 to the cooking cavity 101.

[0119] In some embodiments, the side panel 32 is provided with a plurality of air outlets 321, which are spaced apart in the second reference direction and are parallel to each other in the length direction.

[0120] In some embodiments, the main body 31 has opposing front and rear sides in its thickness direction, and the side plate 32 is inclined rearward from the outer edge of the main body 31 in a direction away from the main body 31; a guide plate 322 is provided on at least one side of the air outlet 321 in the width direction, and the guide plate 322 extends inclinedly from the side plate 32 towards the front. The guide plate 322 can guide the airflow blown out of the air outlet 321. By providing the guide plate 322, the airflow of the air outlet 321 can be directed to move closer to the front of the main body 31. In other words, the guide plate 322 can cooperate with the air outlet 321 to change the direction of the airflow, thereby improving the uniformity of the airflow inside the cooking cavity 101.

[0121] Furthermore, the rotation direction of the air outlet blade 24 is tangential near the side plate 32. In the tangential direction, the air outlet 321 has a first long side and a second long side in sequence, and the guide plate 322 is at least disposed on the second long side in the tangential direction. In this way, the placement of the guide plate 322 can be matched with the rotation direction of the air outlet blade 24, thereby effectively guiding the airflow to the cooking cavity 101.

[0122] It should be noted that the airflow direction generated by the rotation of the exhaust blade 24 is not perpendicular to the extension direction of the side plate 32. Furthermore, the airflow direction generated by the exhaust blade 24 is related to the rotation direction of the exhaust blade 24. (Reference) Figure 18 When the air outlet blade 24 rotates counterclockwise, the airflow direction for the left side panel 32 is downward to the left. The rotation direction of the air outlet blade 24 is downward in the tangential direction near the side panel 32. The guide plate 322 needs to be positioned on the lower side of the air outlet 321 to effectively guide the airflow to the cooking cavity 101. That is, in the downward tangential direction, the lower side of the air outlet 321 is the second longest side.

[0123] Combination Figure 18With the exhaust blade 24 rotating counterclockwise, the airflow direction for the right-side panel 32 is upward and to the right. The rotation direction of the exhaust blade 24 is upward in the tangential direction near the side panel 32. The guide plate 322 needs to be positioned on the upper side of the exhaust port 321 to effectively guide the airflow to the cooking cavity 101. That is, in the upward tangential direction, the upper side of the exhaust port 321 is the second longest side.

[0124] Combination Figure 19 and Figure 21 The cooking device 1 may include only one air outlet blade 24, and the air outlet shroud 30 is provided with a return air vent 311. The air outlet blade 24 is correspondingly arranged with the return air vent 311. Side plates 32 are respectively provided on both sides in the first reference direction, and air outlets 321 are opened on the side plates 32. In this case, one side of the air outlet blade 24 is respectively provided with one side plate 32. Since the tangential directions on both sides of the air outlet blade 24 are opposite, the guide plate 322 on one side plate 32 is located on the upper side in the width direction of the air outlet 321, while the guide plate 322 on the other side plate 32 is located on the lower side in the width direction of the air outlet 321. Optionally, "upper" may refer to one side in the second reference direction, and "lower" may refer to the other side in the second reference direction.

[0125] The cooking device 1 may include two air outlet blades 24. The main body 31 includes two return air vents 311, and the two air outlet blades 24 are correspondingly arranged with the two return air vents 311. Side plates 32 are respectively arranged on both sides in the first reference direction, and air outlets 321 are opened on the side plates 32. In this case, the rotation direction of the two air outlet blades 24 can be selected to be opposite (one counterclockwise and the other clockwise), so that the air outlet blades 24 face the same direction in the tangential direction near the side plates 32 respectively, and the guide plates 322 on the two side plates 32 are both arranged on the same side in the width direction of the air outlets 321 (both are located at the top or the same bottom).

[0126] The rotation direction of the two air outlet blades 24 can also be the same (both clockwise or both counterclockwise). In this way, the tangential directions of the air outlet blades 24 near the two sides of the side plate 32 are opposite. Therefore, the guide plate 322 on one side plate 32 is located on one side of the air outlet 321 in the width direction, while the guide plate 322 on the other side plate is located on the other side of the air outlet 321 in the width direction.

[0127] In this embodiment, an auxiliary plate 33 is provided on at least one side in the second reference direction, and the auxiliary plate 33 has an auxiliary air outlet 331. The auxiliary air outlet 331 can discharge a portion of the airflow generated by the air outlet blades 24 into the cooking cavity 101. Since the auxiliary plate 33 and the side plate 32 are in different directions, the airflow generated by the air outlet blades 24 can be fully utilized in this manner. By setting the area of ​​the auxiliary air outlet 331 to be smaller than the area of ​​the air outlet 321, the wind pressure of the air outlet 321 can be increased, so that most of the airflow exits from the air outlet 321, which is beneficial to increasing the uniformity of airflow through the arrangement of the side plate 32.

[0128] Example 3:

[0129] Combination Figures 18 to 26 In this embodiment, the side plate 32 is disposed on the adjacent side of the main plate 31 and the recessed portion 11. In this way, the side plate 32 with the air outlet 321 can bypass the obstruction of the recessed portion 11, so that the airflow of the air outlet 321 can be smoothly discharged into the cooking cavity 101, thereby promoting the flow of air in the cooking cavity 101 and improving the uniformity of airflow.

[0130] This application embodiment provides an air outlet hood 30. An air outlet 321 disposed on a side panel 32 has a length direction and a width direction. A guide plate 322 is disposed on at least one side of the air outlet 321 in the width direction, and the guide plate 322 protrudes from the side panel 32. The guide plate 322 can guide the airflow blown from the air outlet 321. By providing the guide plate 322, the airflow from the air outlet 321 can be directed towards the front side of the main body 31. On the other hand, by providing the guide plate 322, it can cooperate with the deflection of the air outlet blades 24 to guide the airflow away from the recessed portion 11, thereby reducing the obstruction of the airflow by the recessed portion 11. In other words, the guide plate 322 can cooperate with the air outlet 321 to change the direction of the airflow, thereby improving the uniformity of the airflow inside the cooking cavity 101.

[0131] In some embodiments, the air outlet 321 is inclined relative to the first reference direction along its length. By tilting the air outlet 321, the airflow outlet position will gradually move away from one side of the motherboard 31 in the direction away from the motherboard 31, thereby reducing the influence of the corresponding component on the airflow.

[0132] In some embodiments, the main body 31 has opposing front and rear sides in its thickness direction, and the side plate 32 is inclined rearward from the outer edge of the main body 31 in a direction away from the main body 31. A guide plate 322 extends inclined forward from the side plate 32. A guide plate 322 is provided on at least one side of the air outlet 321 in its width direction, extending inclined forward from the side plate 32. The guide plate 322 guides the airflow from the air outlet 321. By providing the guide plate 322, the airflow from the air outlet 321 can be directed towards the front of the main body 31. In other words, the guide plate 322, in conjunction with the air outlet 321, can change the direction of the airflow to improve the uniformity of the airflow inside the cooking cavity 101.

[0133] The air deflector 322 is located on the side of the air outlet 321 that is close to the main body 31 in the width direction, or the air deflector 322 is located on the side of the air outlet 321 that is far away from the main body 31 in the width direction.

[0134] Specifically, the placement of the deflector 322 on one side is related to the rotation direction of the air outlet blade 24. The rotation direction of the air outlet blade 24 is tangential near the side plate 32. In this tangential direction, the air outlet 321 has a first long side and a second long side in sequence, and the deflector 322 is at least located on the second long side in the tangential direction. In this way, the placement of the deflector 322 can be matched with the rotation direction of the air outlet blade 24, thereby effectively guiding the airflow into the cooking cavity 101.

[0135] It should be noted that the airflow direction generated by the rotation of the exhaust blade 24 is not perpendicular to the extension direction of the side plate 32. Furthermore, the airflow direction generated by the exhaust blade 24 is related to the rotation direction of the exhaust blade 24. For example... Figure 18 When the air outlet blade 24 rotates counterclockwise, the airflow direction for the left side panel 32 is downward to the left. The rotation direction of the air outlet blade 24 is downward in the tangential direction near the side panel 32. The guide plate 322 needs to be positioned on the lower side of the air outlet 321 to effectively guide the airflow to the cooking cavity 101. That is, in the downward tangential direction, the lower side of the air outlet 321 is the second longest side.

[0136] With the air outlet blade 24 rotating counterclockwise, the airflow direction towards the upper right of the right-side panel 32 is upward. The rotation direction of the air outlet blade 24 is upward in the tangential direction near the side panel 32. The guide plate 322 needs to be positioned on the upper side of the air outlet 321 to effectively guide the airflow to the cooking cavity 101. That is, in the upward tangential direction, the upper side of the air outlet 321 is the second longest side.

[0137] Combination Figure 19 and 21The cooking device 1 may include only one air outlet blade 24, and the air outlet shroud 30 is provided with a return air vent 311. The air outlet blade 24 is correspondingly arranged with the return air vent 311. Side plates 32 are respectively provided on both sides in the first reference direction, and air outlets 321 are opened on the side plates 32. In this case, one side of the air outlet blade 24 is respectively provided with one side plate 32. Since the tangential directions on both sides of the air outlet blade 24 are opposite, the guide plate 322 on one side plate 32 is located on the upper side in the width direction of the air outlet 321, while the guide plate 322 on the other side plate is located on the lower side in the width direction of the air outlet 321. Optionally, "upper" may refer to one side in the second reference direction, and "lower" may refer to the other side in the second reference direction.

[0138] The cooking device 1 may include two air outlet blades 24. The main body 31 includes two return air vents 311, and the two air outlet blades 24 are correspondingly arranged with the two return air vents 311. Side plates 32 are respectively arranged on both sides in the first reference direction, and air outlets 321 are opened on the side plates 32. In this case, the rotation direction of the two air outlet blades 24 can be selected to be opposite (one counterclockwise and the other clockwise), so that the air outlet blades 24 face the same direction in the tangential direction near the side plates 32 respectively, and the guide plates 322 on the two side plates 32 are both arranged on the same side in the width direction of the air outlets 321 (both are located at the top or the same bottom).

[0139] The rotation direction of the two air outlet blades 24 can also be the same (both clockwise or both counterclockwise). In this way, the tangential directions of the air outlet blades 24 near the two sides of the side plate 32 are opposite. Therefore, the guide plate 322 on one side plate 32 is located on the upper side of the air outlet 321 in the width direction, while the guide plate 322 on the other side plate 32 is located on the lower side of the air outlet 321 in the width direction.

[0140] In this embodiment, an auxiliary plate 33 is provided on at least one side in the second reference direction, and the auxiliary plate 33 has an auxiliary air outlet 331. The auxiliary air outlet 331 can discharge a portion of the airflow generated by the air outlet blades 24 into the cooking cavity 101. Since the auxiliary plate 33 and the side plate 32 are in different directions, the airflow generated by the air outlet blades 24 can be fully utilized in this manner. By setting the area of ​​the auxiliary air outlet 331 to be smaller than the area of ​​the air outlet 321, the wind pressure of the air outlet 321 can be increased, so that most of the airflow exits from the air outlet 321, which is beneficial to increasing the uniformity of airflow through the arrangement of the side plate 32.

[0141] Combination Figures 24 to 26In other embodiments, guide vanes 322 are provided on both sides of the air outlet 321 in the width direction, and the guide vanes 322 on both sides extend obliquely from the side plate 32 towards each other. In this case, when the air outlet blade 24 rotates clockwise, it can mainly rely on the guide vane 322 on one side in the width direction for airflow guidance. When the air outlet blade 24 rotates counterclockwise, it can mainly rely on the guide vane 322 on the other side in the width direction for airflow guidance. In this way, regardless of whether the air outlet blade 24 rotates clockwise or counterclockwise, the airflow can be guided to the front by the guide vanes 322 on different sides. Optionally, the guide vanes 322 on different sides can have different airflow guiding effects. In the second reference direction, the guide vanes 322 on both sides can mainly guide the airflow to the upper and lower sides respectively. In this way, the air outlet blade 24 can also guide the airflow to the upper and lower sides respectively by rotating clockwise and counterclockwise alternately, thereby effectively increasing the uniformity of airflow.

[0142] Example 4:

[0143] Combination Figure 27 and 28 In this embodiment, the side plate 32 is at least disposed on the side corresponding to the main plate 31 and the recessed portion 11. In related technologies, this arrangement obstructs the airflow from the air outlet 321. Specifically, because a recess is formed between the recessed portion 11 and the side wall, negative pressure is generated at the recess during the airflow from the main air outlet, causing the airflow direction of the air outlet 321 to deviate, and causing the angle between the direction of the air outlet 321 and the side wall to gradually approach a right angle, resulting in increased airflow resistance. To improve this technical problem, this application can provide the following embodiments.

[0144] This application provides an air outlet hood 30. The side panel 32 of the air outlet hood 30 is provided with an air outlet 321 and a pressure-boosting air outlet 333. The pressure-boosting air outlet 333 is located on the side of the air outlet 321 away from the main body 31. The air outlet 321 and the pressure-boosting air outlet 333 are arranged in a second reference direction, and the side panel 32 is on at least one side of the second reference direction. In some embodiments, the air outlet 321 and the pressure-boosting air outlet 333 are arranged in the second reference direction, and the side panel 32 is on at least one side of the second reference direction. The pressure-boosting air outlet 333 assists in airflow. Furthermore, the pressure-boosting air outlet 333 can cooperate with the side wall of the main body 10 of the device to modify the airflow from the air outlet 321, thereby reducing the influence of the recessed portion 11 in the main body 10 on the airflow and increasing the uniformity of airflow within the cooking cavity 101. The pressure-boosting air outlet 333 can compensate for the pressure at the recessed area, reducing negative pressure that could cause airflow deviation at the air outlet 321. A guide cavity 12 is formed on the side of the recessed portion 11 of the equipment body 10 near the air outlet hood 30. The guide cavity 12 can be formed by the recessed portion 11 and the side wall of the equipment body 10. The guide cavity 12 is correspondingly arranged with the booster air outlet 333. Figure 28 As shown, the baffle 322 may not be provided at the pressurized air vent 333, and the airflow from the pressurized air vent 333 can be guided by the guide cavity 12. The guide cavity 12 can change the airflow direction of the airflow blown out of the pressurized air vent 333. The guide cavity 12, in conjunction with the recessed portion 11, can change the airflow blown out of the pressurized air vent 333 to be tilted towards the inside of the cooking cavity 101. Furthermore, the airflow blown out of the pressurized air vent 333 is changed to be tilted towards the airflow blown out of the air outlet 321. In this way, the airflow from the pressurized air vent 333 can change the airflow direction of the air outlet 321, so as to reduce the obstruction of the airflow blown out of the air outlet 321 by the recessed portion 11.

[0145] In some embodiments, the main body 31 has opposing front and rear sides in its thickness direction, and the side plate 32 is inclined rearward from the outer edge of the main body 31 in a direction away from the main body 31. In this way, the side plate 32, the main body 31, and the fixing cover 21 can form a space to accommodate the air outlet blades 24. On the other hand, the rearward inclination of the side plate 32 can cause the booster air outlet 333 to face the guide cavity 12 formed by the side wall and the recessed portion 11.

[0146] On the side panel 32, a guide plate 322 is provided on the side of the air outlet 321 away from the main body 31. The guide plate 322 extends from the side panel 32 towards the front, and the air outlet direction formed by the guide plate 322 and the air outlet 321 corresponds to the downward recess 11. The guide plate 322 can cooperate with the air outlet 321 to change the air outlet direction of the air outlet 321. In this embodiment, the air outlet direction formed by the guide plate 322 and the air outlet 321 corresponds to the downward recess 11. In this way, the air outlet direction can be directed towards the downward recess 11 instead of the guide cavity 12, so that the air outlet 321 can bypass the guide cavity 12, which has the greatest obstruction. Furthermore, the air outlet 321 can be redirected by the air outlet 333 in the manner described above, so that the air outlet direction is closer to parallel to the plane of the side wall (or the plane of the recessed part 11), thereby allowing the air outlet 321 to blow towards the front of the cooking cavity 101 with less resistance.

[0147] The air outlet 321 and the booster air outlet 333 have a length direction, and the length direction of the air outlet 321 and the booster air outlet 333 is parallel to the direction perpendicular to the arrangement direction of the main body 31 and the side plate 32. Specifically, the length direction of the air outlet 321 and the booster air outlet 333 extends along a first reference direction.

[0148] An auxiliary plate 33 is provided on at least one side adjacent to the main plate 31 and the side plate 32. The auxiliary plate 33 is located on one side in the first reference direction. The auxiliary plate 33 is provided with an auxiliary air outlet 331, the area of ​​which is smaller than the area of ​​the air outlet 321 and the pressurization air outlet 333. By setting the area of ​​the auxiliary air outlet 331 to be smaller than that of the air outlet 321, the air pressure at the air outlet 321 can be increased, so that most of the airflow exits from the air outlet 321, which is beneficial to increasing the uniformity of airflow through the side plate 32.

[0149] In some embodiments, an air outlet 321 and a booster air outlet 333 constitute an air outlet group, and multiple air outlet groups are arranged along the outer edge of the main body 31. Further, the main body 31 is provided with two return air outlets 311, each return air outlet 311 corresponding to at least two air outlet groups. This method allows the air outlet 321 and booster air outlet 333 to be matched with the return air outlet 311, that is, matched with the air outlet blades 24, thereby facilitating airflow.

[0150] It should be noted that the above embodiments describe at least one side plate 32 of the motherboard body 31. The side plate 32 of any side of the motherboard body 31 can adopt the technical solution of the side plate 32 in any of the above embodiments. No specific limitation is made here.

[0151] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A stent, characterized by, include: The bracket has a first side and a second side disposed opposite to each other. The bracket includes a first lower protrusion, a second lower protrusion and a third lower protrusion connected in sequence. The second lower protrusion is closer to the second side of the bracket than the first lower protrusion, and the third lower protrusion is closer to the second side of the bracket than the second lower protrusion. The third lower protrusion is located inside the second lower protrusion, and the second lower protrusion is located inside the first lower protrusion.

2. The bracket according to claim 1, characterized in that: The bracket includes a rotating shaft and a mounting portion. The rotating shaft is used to mount a drive device and has a rotation axis that matches the drive device. The mounting portion is connected to the rotating shaft and is mounted on a first side of the mounting portion. The mounting portion has a first lower protrusion, a second lower protrusion, and a third lower protrusion. The rotating shaft is mounted on the third lower protrusion. The third lower protrusion is closer to the rotation axis than the second lower protrusion, and the second lower protrusion is closer to the rotation axis than the first lower protrusion.

3. The stent according to claim 2, characterized in that: The outer periphery of the third lower protrusion is provided with a plurality of second lower protrusions at circumferential intervals; the first lower protrusion is provided with a plurality of first lower protrusions at circumferential intervals; each second lower protrusion is correspondingly connected to at least one first lower protrusion.

4. The bracket according to claim 2, characterized in that: The bracket also includes a pressure wire portion extending from the mounting portion; At least two pressure lines are provided extending from the first lower protrusion, and the two pressure lines have a height difference in the direction of the rotation axis; And / or, at least one of the pressure lines is provided extending from the second lower protrusion; And / or, at least one of the pressure lines is provided extending from the third lower protrusion.

5. The bracket according to claim 2, characterized in that: The outer periphery of the mounting part is also provided with a limiting part, which is used to restrict the movement of the insulation component.

6. The bracket according to claim 5, characterized in that: The limiting portion includes a first extension extending from the outer edge of the mounting portion along the rotation axis direction and a second extension extending from the first extension along a direction perpendicular to the rotation axis direction.

7. An air outlet assembly comprising: include: A fixing cover having opposing first and second sides; The bracket as described in any one of claims 1-6 is installed on the first side of the fixing cover, and the fixing cover is correspondingly provided with the bracket; The drive unit is mounted on the fixed cover via the bracket, and the drive unit is at least partially mounted on the third lower protrusion of the bracket. The air outlet blades are located on the second side of the fixed cover and are driven by the drive device.

8. The air outlet assembly according to claim 7, characterized in that: The fixing cover includes a first recessed portion, a second recessed portion, and a third recessed portion connected in sequence; wherein, the second recessed portion is closer to the second side of the fixing cover than the first recessed portion, and the third recessed portion is closer to the second side of the fixing cover than the second recessed portion; the second recessed portion is closer to the rotation axis than the first recessed portion, and the third recessed portion is closer to the rotation axis than the second recessed portion; the first lower protrusion matches the first recessed portion, the second lower protrusion matches the second recessed portion, and the third lower protrusion matches the third recessed portion; the driving device is at least partially accommodated in the third recessed portion.

9. The air outlet assembly according to claim 8, characterized in that: The air outlet blade includes a main body and a blade portion surrounding the main body. The main body is correspondingly disposed with respect to the third recessed portion. In the direction of the rotation axis, the main body is located on the side of the blade portion away from the first side. In the radial direction of the air outlet blade, the blade portion is at least partially located on the periphery of the third recessed portion.

10. The air outlet assembly according to any one of claims 8-9, characterized in that: The air outlet assembly further includes heat dissipation blades, which are mounted on the first side of the bracket and driven by the drive device; in the direction of the rotation axis, the heat dissipation blades are located on the side of the second recessed portion closer to the first side; in the radial direction of the heat dissipation blades, the heat dissipation blades are located within the inner periphery of the first recessed portion.

11. A cooking apparatus, characterized by, include: The device body and the air outlet assembly as described in any one of claims 7-10, wherein the air outlet assembly is mounted on the device body.

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