Microwave air fryer oven

Abstract

The application provides a microwave air-frying oven, which comprises a shell, an inner shell arranged in the shell, an inner cavity of the inner shell forming a cooking cavity, an air inlet hole arranged at the top of the inner shell, an air outlet hole arranged at the rear of the inner shell, a heating pipe assembly arranged at the top of the inner shell, a fan assembly arranged at the rear of the inner shell and having an air outlet, a fan cover assembly arranged at the top of the inner shell and forming an air duct between the top of the inner shell and the fan cover assembly, the air duct having an air inlet end with a larger diameter than that of a tail air end, the air inlet end being communicated with the air outlet, air generated by the fan assembly flowing through the air outlet, the air inlet end, the air duct and the air inlet hole in sequence to form hot air, the hot air entering the cooking cavity and being discharged from the air outlet hole to form a circulation, a rotating disc rotatably arranged at the inner side of the bottom of the inner shell, and a frying basket assembly arranged on the rotating disc. The application has a reasonable structure layout, the air duct between the fan cover assembly and the top of the inner shell is designed in a form that the air inlet end is spacious and the tail air end is narrow, which is beneficial to improving the wind power, increasing the air pressure and improving the cooking effect.

Description

Technical Field

[0001] This application belongs to the field of cooking appliance technology, and in particular relates to a microwave air fryer oven. Background Technology

[0002] With the increasing demand for diverse food options, cooking utensils have become more varied, creating a new need for combining diverse cooking functions. This has led to the emergence of microwave air fryer ovens that combine microwave, air frying, and baking functions. However, the cooking effects of these ovens are not as good as using a microwave, air fryer, or oven individually, and they also suffer from complex structures and overall bulkiness. Utility Model Content

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of this application is to provide a microwave air fryer oven with good cooking effect and simple and reasonable structure.

[0004] The technical solution adopted in this application embodiment is a microwave air fryer oven, including an outer shell, and further comprising:

[0005] An inner shell is disposed inside the outer shell, and the inner cavity of the inner shell forms a cooking cavity; the top of the inner shell is provided with an air inlet communicating with the cooking cavity, and the rear of the inner shell is provided with an air outlet communicating with the cooking cavity.

[0006] A heating element assembly is located at the top of the inner shell and corresponds to the air inlet.

[0007] A fan assembly is located at the rear of the inner shell and has an air outlet.

[0008] A fan hood assembly is disposed on the top of the inner shell and forms an air duct between it and the top of the inner shell. The diameter of the air inlet end of the air duct is larger than the diameter of its exhaust end. The air inlet end is connected to the air outlet of the fan assembly, so that the air generated by the fan assembly flows sequentially through the air outlet, the air inlet end, the air duct and the air inlet hole to the heating element assembly to form hot air, which then enters the cooking cavity and is discharged from the air outlet to form a circulation.

[0009] A turntable, which is rotatably located on the inner bottom side of the inner shell;

[0010] The frying basket assembly is located on the turntable.

[0011] In an optional embodiment, the wind hood assembly includes a wind hood shell and air guide vanes. The wind hood shell includes a first shell portion and a second shell portion. A first space is formed between the first shell portion and the top of the inner shell. The second shell portion is connected to the first shell portion and gradually slopes towards the top of the inner shell to form a gradually narrowing second space between it and the top of the inner shell. The second space communicates with the first space to form the air duct. The end of the first space away from the second space forms an air inlet end, and the end of the second space away from the first space forms an air outlet end. The air guide vanes are located at the end of the first shell portion away from the second shell portion and are used to guide the air into the air duct. The wind hood assembly has a simple and reasonable structure, which facilitates the formation of an air duct that is spacious at the rear and gradually narrows at the front between it and the top of the inner shell; and the air guide vanes ensure that the air is evenly distributed inside the air duct.

[0012] In an optional embodiment, the air guide vane is vertically arranged. The distance between the first end of the air guide vane near the air outlet and the first side of the first housing is greater than the distance between the first end of the air guide vane and the second side of the first housing. Furthermore, the air guide vane gradually tilts towards the first side of the first housing from its first end to its second end, with an tilt angle of 65°≤α≤85°. This arrangement of the air guide vane is more effective in guiding deflected airflow, ensuring that the airflow is evenly distributed within the air duct.

[0013] In an optional embodiment, the fan assembly includes a blower shroud and a fan mounted on the blower shroud. The blower shroud is located at the rear of the inner shell and forms a wind cavity with the inner shell. The upper end of the blower shroud is connected to the first shell portion, and the air outlet at the rear of the inner shell communicates with the wind cavity. This facilitates the formation of hot air circulation.

[0014] In an optional embodiment, the fan assembly further includes fan blades and blower blades mounted on the output shaft of the fan. The outer center of the blower shroud is recessed inward to form a cavity. The fan blades are located on the outer side of the blower shroud and within the cavity. The blower blades are located on the inner side of the blower shroud and are recessed inward to avoid obstructing the recess of the blower shroud, thus maintaining a safe distance between the fan blades and blower blades and the blower shroud. The layout of the components of the fan assembly is reasonable and the structure is compact.

[0015] In an optional embodiment, the first shell portion and the second shell portion are an integral structure, and their outer periphery extends outward with a raised edge, which fits tightly with the top of the inner shell to prevent hot air from escaping.

[0016] In an optional embodiment, the turntable assembly includes a turntable and a plurality of roller assemblies disposed at the bottom of the turntable. Each roller assembly includes a roller post, a roller bracket, and a roller. The roller post is fixed to the bottom surface of the turntable near its periphery. The roller bracket is fitted and fastened to the roller post. The roller bracket is provided with symmetrical roller locking grooves, and the roller axle is rotatably disposed within the roller locking grooves; and / or

[0017] The inner bottom of the inner shell is provided with an annular roller groove, and the roller assembly is disposed in the annular roller groove and can roll along the annular roller groove. This turntable assembly can eliminate the need for a rotating ring and a triangular bracket, saving parts, reducing costs, and making it more convenient to use.

[0018] In an optional embodiment, a motor bracket is provided on the bottom outer side of the inner shell, and a synchronous motor is provided on the motor bracket;

[0019] The turntable has a meshing platform in the middle of its bottom surface;

[0020] The bottom of the inner shell is provided with a meshing bracket, the upper end of which extends into the inner shell to form a connector for engaging with the meshing platform, and the lower end of which extends out of the inner shell and is fixed to the output shaft of the synchronous motor.

[0021] In an optional embodiment, the frying basket assembly includes a frying basket and a plurality of support legs located at the bottom of the frying basket near its periphery. The bottom end of each support leg has a semi-cutout to form a stepped structure, and the stepped surface of the stepped structure supports the edge of the turntable. By providing support legs at the bottom of the frying basket, the frying basket can always be accurately supported on the edge of the turntable, keeping the center position of the frying basket consistent with the center position of the turntable, without any offset.

[0022] In an optional embodiment, the heating element assembly includes a heating element in a square loop shape, and the air inlet has multiple loops surrounding the heating element. This increases heat transfer efficiency and improves cooking efficiency and results.

[0023] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: the microwave air fryer oven of this application has a reasonable structural layout. The inner shell, the hood assembly, and the fan assembly work together to form a relatively sealed space, ensuring the cooking effect when performing microwave and baking functions. The air duct between the hood assembly and the top of the inner shell is designed with a wide air inlet and a narrow air outlet, which is conducive to increasing the wind force and air pressure to form a strong wind and improve the cooking effect of air frying.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this application.

[0025] The overview of various implementations or examples of the technology described in this application is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0026] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to illustrate the claimed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts.

[0027] Figure 1 This is an exploded view of a microwave air fryer oven according to an embodiment of this application.

[0028] Figure 2 This is a cross-sectional view of the microwave air fryer oven according to an embodiment of this application.

[0029] Figure 3 This is a cross-sectional view of a microwave air fryer oven according to an embodiment of this application.

[0030] Figure 4 This is a schematic diagram of the obliquely narrowed shroud assembly according to an embodiment of this application.

[0031] Figure 5 This is a three-dimensional structural diagram of the windshield assembly according to an embodiment of this application.

[0032] Figure 6 This is a bottom view of the shroud assembly according to an embodiment of this application.

[0033] Figure 7 This is a cross-sectional view of a wind turbine assembly according to an embodiment of this application.

[0034] Figure 8 This is a three-dimensional structural diagram of the turntable assembly according to an embodiment of this application.

[0035] Figure 9 This is an exploded view of the turntable assembly in an embodiment of this application after being inverted.

[0036] Figure 10 The image shows the front view of the basket assembly assembled onto the turntable assembly, as described in this embodiment of the application.

[0037] Figure 11 This is a three-dimensional structural diagram of the inverted blasting basket assembly according to an embodiment of this application.

[0038] Figure 12 This is a schematic diagram showing the arrangement of the heating element assembly and air inlet at the top of the inner shell according to an embodiment of this application.

[0039] Figure label:

[0040] 1-Inner shell; 11-Air inlet; 12-Air outlet; 13-Annular roller groove; 14-Meshing bracket; 15-Waveguide mask;

[0041] 2-Heating element;

[0042] 3-Fan assembly; 31-Air outlet; 32-Blower shroud; 321-Cavity; 33-Fan; 34-Fan blades; 35-Blower blades; 36-Fan support; 37-Shock-absorbing silicone pad;

[0043] 4-Wind cover assembly; 41-Air duct; 411-First space; 412-Second space; 42-Wind cover shell; 421-First shell section; 422-Second shell section; 423-Raised edge; 43-Air guide vane;

[0044] 5-Turntable assembly; 51-Turntable; 511-Meshing table; 52-Roller assembly; 521-Roller column; 522-Roller bracket; 523-Roller;

[0045] 6-Balloon blasting assembly; 61-Balloon blasting basket; 62-Support leg; 621-Stepped structure;

[0046] 71-Motor bracket; 72-Synchronous motor;

[0047] 8-Magnetron. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the described embodiments of this application without creative effort are within the scope of protection of this application.

[0049] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] To keep the following description of the embodiments of this application clear and concise, detailed descriptions of known functions and known components are omitted.

[0051] This application provides a microwave air fryer oven. For example... Figures 1 to 4 As shown, the microwave air fryer oven includes an outer shell (the outer shell is omitted in the figure to clearly show the internal structure), an inner shell 1, a heating element assembly, a fan assembly 3, a fan hood assembly 4, a turntable assembly 5, and a frying basket assembly 6.

[0052] The inner shell 1 is located inside the outer shell, and its inner cavity forms the cooking chamber. The top of the inner shell 1 has an air inlet 11 communicating with the cooking chamber, and the rear of the inner shell 1 has an air outlet 12 communicating with the cooking chamber. The heating element assembly is located on the inner side of the top of the inner shell 1, corresponding to the air inlet 11, so that air passing through the air inlet 11 can be blown onto the heating element assembly. The fan assembly 3 is located at the rear of the inner shell 1, and an air outlet 31 is formed on its top. The fan shroud assembly 4 is located on the top of the inner shell 1, forming an air duct 41 between itself and the top of the inner shell 1. The diameter of the air inlet end of the air duct 41 is larger than the diameter of its exhaust end. The air inlet end communicates with the air outlet 31 of the fan assembly 3, so that the air generated by the fan assembly 3 flows sequentially through the air outlet 31, the air inlet end, the air duct 41, and the air inlet 11, and is blown onto the heating element assembly to form hot air, which then enters the cooking chamber and is discharged through the air outlet 12, forming a circulation. (See [reference]). Figure 3 , Figure 3 The direction of the middle arrow indicates the direction of hot air circulation. The turntable assembly 5 is rotatably located on the bottom inner side of the inner shell 1, and the frying basket assembly 6 is located on the turntable 51.

[0053] The microwave air fryer oven of this application has a reasonable structural layout, and the air inlet of the fan assembly 4 is connected to the air outlet 31 of the fan assembly 3 at the rear. This allows the air generated by the fan assembly 3 to flow through the heating element assembly to form hot air before entering the cooking cavity. After heating the food in the cooking cavity, the air is discharged from the cooking cavity through the air outlet 12 under the action of the fan assembly 3, forming a circulation and achieving a uniform hot air baking function with better cooking results. Moreover, the air duct 41 between the fan assembly 4 and the top of the inner shell 1 is designed with a wide air inlet and a narrow air outlet, which is beneficial for improving air quality. High wind force increases wind pressure to create strong wind. Strong wind can accelerate the contact between hot air and the food surface and quickly disperse the hot air to all areas of the cooking cavity, preventing hot air from stagnating in some places and ensuring that heat can be evenly distributed to all surfaces of the food, making the heating process faster and shortening the baking time. Moreover, the strong wind pressure of the hot air can make the moisture on the surface of the food evaporate quickly and can also effectively remove moisture from the inside of the cooking cavity, preventing the food from becoming soggy or soft due to water vapor accumulation during baking, which helps the food to form a crispy outside and tender inside texture.

[0054] In some embodiments, such as Figure 5 and Figure 6 As shown, the shroud assembly 4 includes a shroud shell 42 and air guide vanes 43. The shroud shell 42 includes a first shell portion 421 and a second shell portion 422. A first space 411 is formed between the first shell portion 421 and the top of the inner shell 1. The second shell portion 422 is connected to the first shell portion 421 and gradually slopes towards the top of the inner shell 1 to form a gradually narrowing second space 412 between it and the top of the inner shell 1 (see [reference]). Figure 4 The second space 412 is connected to the first space 411 to form an air duct 41. The end of the first space 411 away from the second space 412 forms the air inlet, and the end of the second space 412 away from the first space 411 forms the air outlet. A guide vane 43 is located at the end of the first shell 421 away from the second shell 422 to guide air into the air duct 41. The fan hood assembly 4 has a simple and reasonable structure, facilitating the formation of an air duct 41 that is spacious at the rear and gradually narrows at the front with the top of the inner shell 1. This structure of the air duct 41 not only allows the air generated by the fan assembly 3 to smoothly enter from the spacious rear, but also, without adding additional structural components, increases the air pressure and wind force at the narrowing front, facilitating the rapid and powerful blowing of hot air through the heating element assembly and into the cooking cavity to form a circulation. Furthermore, since the air blown by the fan assembly 3 towards the fan shroud is deflected, the design of the air guide vane 43 can guide the airflow, ensuring that the airflow evenly fills the interior of the air duct 41, and then evenly and quickly enters the cooking cavity through the air inlet 11. (See [reference]) Figure 5 , Figure 5 The direction of the middle arrow indicates the direction of hot air flow.

[0055] In some embodiments, continue to combine Figure 5 and Figure 6 The air guide vane 43 is vertically arranged, that is, perpendicular to the first shell portion 421 of the air cover 42. The distance Y1 between the first end of the air guide vane 43 near the air outlet 31 and the first side of the first shell portion 421 is greater than the distance Y2 between the first end of the air guide vane 43 and the second side of the first shell portion 421. Furthermore, the air guide vane 43 gradually tilts towards the first side of the first shell portion 421 from its first end to its second end, with an tilt angle of 65°≤α≤85°. This arrangement of the air guide vane 43 is more conducive to guiding deflected air, allowing the air to be evenly distributed into the air duct 41 between the air cover 42 and the top of the inner shell 1.

[0056] Preferably, Y1 can be four-sevenths of the total distance N between the first and second sides of the air inlet end of the first housing 421. The air guide plate 43 can be fixedly connected to the first housing 421 by snap-fit, screw fixing or spot welding process to ensure the stability of the air guide plate 43.

[0057] like Figure 5 and Figure 6As shown, the end of the first shell portion 421 away from the second shell portion 422 tapers inward to form a constricted portion, which forms the air inlet. A guide vane 43 is disposed within the constricted portion. The constricted portion facilitates the connection between the air duct 41 and the air outlet 31.

[0058] The first shell portion 421 and the second shell portion 422 can be an integral structure, and their outer periphery extends outward with a protruding edge 423. The protruding edge 423 fits tightly with the top of the inner shell 1 to form a sealed air duct 41 to prevent hot air from escaping.

[0059] In some embodiments, such as Figure 7 As shown, the fan assembly 3 includes a blower shroud 32 and a fan 33 mounted on the blower shroud 32. The blower shroud 32 is located at the rear of the inner shell 1 and is tightly connected to the rear of the rear shell to form an air cavity. The upper end of the blower shroud 32 is connected to the first shell portion 421, and an air outlet 31 is formed at the upper end of the blower shroud 32 and communicates with the air cavity. The air outlet 12 at the rear of the inner shell 1 communicates with the air cavity to circulate hot air under the action of the fan 33. The blower shroud fits tightly against the top of the inner shell 1 and is tightly connected to the rear of the inner shell 1, so that the inner shell 1, the blower shroud assembly 4, and the fan assembly 3 cooperate to form a relatively sealed space, which not only prevents hot air from escaping but also ensures the cooking effect during microwave and baking functions.

[0060] In some embodiments, continue to combine Figure 7 The fan assembly 3 also includes a fan blade 34 and a blower blade 35 mounted on the output shaft of the fan 33. The outer center of the blower shroud 32 is recessed inward to form a cavity 321. The fan blade 34 is located on the outer side of the blower shroud 32 and within the cavity 321. The blower blade 35 is located on the inner side of the blower shroud 32 and is recessed inward to avoid obstructing the recess of the blower shroud 32, ensuring a safe distance between the fan blade 34 and the blower blade 35 and the blower shroud 32. The layout of the components of the fan assembly 3 is reasonable and the structure is compact. When the fan 33 starts, the fan 33 simultaneously drives the fan blade 34 and the blower blade 35 to rotate via its output shaft. The fan blade 34 carries the heat dissipation of the fan 33, while the blower blade 35 carries the hot air circulation. The blower blade 35 is a turbine blade, allowing gas to enter the impeller center axially and be radially ejected by centrifugal force.

[0061] Continue to combine Figure 7 The blower shroud 32 of the blower assembly 3 is also equipped with a blower support 36, and the blower 33 is mounted on the blower support 36, with a shock-absorbing silicone pad 37 separating the blower 33 from the blower support 36. The blower 33 can be a DC brushless motor.

[0062] In some embodiments, such as Figure 8 and Figure 9As shown, the turntable assembly 5 includes a turntable 51 and multiple roller assemblies 52 located at the bottom of the turntable 51. Each roller assembly 52 includes a roller post 521, a roller bracket 522, and a roller 523. The roller post 521 is fixed to the bottom surface of the turntable 51 near its periphery. The roller bracket 522 is fitted and fastened to the roller post 521. The roller bracket 522 has symmetrical roller locking grooves, and the axle of the roller 523 rotates within the roller locking grooves. By setting multiple roller assemblies 52 at the bottom of the turntable 51, a rolling connection can be formed between the turntable 51 and the inner bottom of the inner shell 1, allowing the turntable 51 to rotate smoothly. This eliminates the need for the rotating ring and triangular support found in existing cooking equipment, saving parts, reducing costs, and making it more convenient for users.

[0063] The shape of the roller post 521 is not limited, as long as it can be fixed to the bottom of the turntable 51 and fastened together with the roller bracket 522. The turntable 51 can be made of glass or ceramic. The roller retaining groove can be a C-shape with the opening facing downwards, which facilitates the installation and removal of the roller 523 and allows the axle of the roller 523 to move within the C-shaped roller retaining groove, thus allowing the roller 523 to rotate.

[0064] Furthermore, such as Figures 1 to 3 As shown, the inner bottom of the inner shell 1 is provided with an annular roller groove 13. The roller assembly 52 is disposed in the annular roller groove 13 and can roll along the annular roller groove 13 when the turntable 51 rotates. By providing the annular roller groove 13, the operation of the roller assembly 52 can be guided and limited, so that the turntable 51 can maintain its rotation around its own center axis without dislodging. The depth of the annular roller groove 13 can be set according to the size of the roller 523 and actual needs, specifically to prevent the roller 523 from falling out of the annular roller groove 13. For example, the groove depth of the annular roller groove 13 can be 5mm to 18mm.

[0065] In some embodiments, such as Figure 2 and Figure 3 As shown, a motor bracket 71 is provided on the bottom outer side of the inner shell 1, and a synchronous motor 72 is mounted on the motor bracket 71. Figure 8 and Figure 9 As shown, a meshing platform 511 is provided in the center of the bottom surface of the turntable 51. A meshing bracket 14 is provided through the bottom of the inner shell 1 (see...). Figure 2 The upper end of the meshing bracket 14 extends into the inner shell 1 to form a connector for engaging with the meshing table 511, and the lower end of the meshing bracket 14 extends out of the inner shell 1 and is fixed to the output shaft of the synchronous motor 72. Thus, when the synchronous motor 72 starts, it will drive the meshing bracket 14 to rotate, and the meshing bracket 14 will then drive the meshing table 511 and the turntable 51 to rotate synchronously.

[0066] In some embodiments, such as Figure 10 and Figure 11As shown, the frying basket assembly 6 includes a frying basket 61 and multiple support legs 62 located at the bottom of the frying basket 61 near its periphery. The bottom end of each support leg 62 has a half-cut to form a stepped structure 621, and the stepped surface of the stepped structure 621 supports the edge of the turntable 51. By providing support legs 62 at the bottom of the frying basket 61, the frying basket 61 can always be accurately supported on the edge of the turntable 51, keeping the center position of the frying basket 61 consistent with the center position of the turntable 51, without any offset.

[0067] like Figure 12 As shown, the heating element assembly includes a heating element 2 in a square loop shape, with multiple air inlets 11 arranged around the heating element 2. The square loop shape of the heating element 2 allows for a longer heating element 2 to be arranged on the top of the limited inner shell 1, increasing the contact area for heat transfer. Combined with the air inlets 11 surrounding the heating element 2, this design ensures that air fully absorbs the heat from the heating element 2 to form hot air, thereby improving cooking efficiency and results. The surface load of this heating element assembly is between 6W and 7.5W, guaranteeing the effectiveness of hot air baking.

[0068] like Figure 1 and Figure 2 As shown, a waveguide mask 15 is provided on the side of the inner shell 1. The microwave air fryer oven of this embodiment also includes a magnetron 8, which is used to emit electromagnetic waves into the cooking cavity through the waveguide mask 15 to achieve microwave function.

[0069] The microwave air fryer oven of this application embodiment utilizes the turntable 51 and magnetron 8 to realize the microwave function of the turntable 51; the hot air circulation formed by the fan assembly 3, the heating tube assembly and the fan shroud assembly 4 realizes the air frying function; and the heating tube assembly realizes the baking function.

[0070] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A microwave air fryer oven, comprising an outer shell, characterized in that, Also includes: An inner shell (1) is disposed inside the outer shell, and the inner cavity of the inner shell (1) forms a cooking cavity; The top of the inner shell (1) is provided with an air inlet (11) communicating with the cooking cavity, and the rear of the inner shell (1) is provided with an air outlet (12) communicating with the cooking cavity. A heating element assembly is located at the top of the inner shell (1) and corresponds to the air inlet (11); A fan assembly (3) is located at the rear of the inner shell (1) and has an air outlet (31). The fan assembly (4) is located on the top of the inner shell (1) and forms a duct (41) between it and the top of the inner shell (1). The diameter of the air inlet end of the duct (41) is larger than the diameter of the air outlet end. The air inlet end is connected to the air outlet (31) of the fan assembly (3) so that the air generated by the fan assembly (3) flows through the air outlet (31), the air inlet end, the duct (41) and the air inlet hole (11) in sequence, blows to the heating tube assembly to form hot air, enters the cooking cavity, and is discharged through the air outlet (12) to form a circulation. A turntable (51) is rotatably located on the inner bottom side of the inner shell (1); The frying basket assembly (6) is located on the turntable (51).

2. The microwave air fryer oven according to claim 1, characterized in that, The wind hood assembly (4) includes a wind hood shell (42) and a wind guide plate (43). The wind hood shell (42) includes a first shell portion (421) and a second shell portion (422). A first space (411) is formed between the first shell portion (421) and the top of the inner shell (1). The second shell portion (422) is connected to the first shell portion (421) and gradually tilts towards the top of the inner shell (1) to form a gradually narrowing second space (412) between it and the top of the inner shell (1). The second space (412) communicates with the first space (411) and forms the air duct (41). The end of the first space (411) away from the second space (412) forms an air inlet end, and the end of the second space (412) away from the first space (411) forms an air outlet end. The wind guide plate (43) is disposed at the end of the first shell portion (421) away from the second shell portion (422) and is used to guide the air into the air duct (41).

3. The microwave air fryer oven according to claim 2, characterized in that, The air guide vane (43) is vertically arranged. The distance between the first end of the air guide vane (43) near the air outlet (31) and the first side of the first shell (421) is greater than the distance between the air guide vane (43) and the second side of the first shell (421). The air guide vane (43) gradually tilts towards the first side of the first shell (421) from its first end to its second end. The tilt angle of the air guide vane (43) is 65°≤α≤85°.

4. The microwave air fryer oven according to claim 2, characterized in that, The blower assembly (3) includes a blower shroud (32) and a blower (33) disposed on the blower shroud (32). The blower shroud (32) is disposed at the rear of the inner shell (1) and forms a wind cavity with the inner shell (1). The upper end of the blower shroud (32) is connected to the first shell part (421). The air outlet (12) at the rear of the inner shell (1) communicates with the wind cavity.

5. The microwave air fryer oven according to claim 4, characterized in that, The fan assembly (3) also includes a fan blade (34) and a blower blade (35) disposed on the output shaft of the fan (33). The outer middle of the blower shroud (32) is recessed inward to form a cavity (321). The fan blade (34) is disposed on the outer side of the blower shroud (32) and located in the cavity (321). The blower blade (35) is disposed on the inner side of the blower shroud (32) and is recessed inward to avoid the recess of the blower shroud (32), so that the fan blade (34) and the blower blade (35) maintain a safe distance from the blower shroud (32).

6. The microwave air fryer oven according to claim 2, characterized in that, The first shell portion (421) and the second shell portion (422) are an integral structure, and their outer periphery extends outward with a protruding edge (423), which is closely fitted to the top of the inner shell (1).

7. The microwave air fryer oven according to claim 1, characterized in that, The turntable assembly (5) includes a turntable (51) and a plurality of roller assemblies (52) disposed at the bottom of the turntable (51). Each roller assembly (52) includes a roller post (521), a roller bracket (522) and a roller (523). The roller post (521) is fixed to the bottom surface of the turntable (51) near the periphery. The roller bracket (522) is fitted and fastened to the roller post (521). The roller bracket (522) is provided with symmetrical roller locking grooves. The axle of the roller (523) is rotatably disposed in the roller locking groove. The inner shell (1) has an annular roller groove (13) on its bottom inner side. The roller assembly (52) is located in the annular roller groove (13) and can roll along the annular roller groove (13).

8. The microwave air fryer oven according to claim 1, characterized in that, The bottom outer side of the inner shell (1) is provided with a motor bracket, and a synchronous motor (72) is provided on the motor bracket; The turntable (51) has a meshing platform (511) in the middle of its bottom surface; The bottom of the inner shell (1) is provided with a meshing bracket (14). The upper end of the meshing bracket (14) extends into the inner shell (1) to form a connector for cooperating with the meshing table (511). The lower end of the meshing bracket (14) extends out of the inner shell (1) and is fixed to the output shaft of the synchronous motor (72).

9. The microwave air fryer oven according to claim 1, characterized in that, The frying basket assembly (6) includes a frying basket (61) and a plurality of legs (62) located at the bottom of the frying basket (61) near the periphery. The bottom end of the legs (62) is provided with a half cut to form a stepped structure (621). The stepped surface of the stepped structure (621) is supported on the edge of the turntable (51).

10. The microwave air fryer oven according to claim 1, characterized in that, The heating element assembly includes a heating element (2) in a square loop shape, and the air inlet (11) is provided with multiple loops and arranged around the heating element (2).

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