Air fryer with stewing structure on lower layer

By designing an upper and lower body flipping structure and a steam sealing ring in the air fryer, the problem of inconvenience in using the inner pot structure under stewing cooking method is solved, realizing convenient operation of stewing function and sealing of inner pot.

CN223979712UActive Publication Date: 2026-03-10NINGBO BIYI ELECTRIC APPLIANCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing air fryers are difficult to use with an inner pot structure for stewing and cooking methods. The lid is inconvenient to use, and there is a lack of a structure design for flipping the upper and lower parts to open and close, which affects the lifespan of the parts and the ease of use.

Method used

An air fryer with a stewing structure in the lower part was designed. It adopts a flip structure with the upper and lower parts hinged together. The inner pot lid is sealed by a steam sealing ring. Combined with the bottom heating element and fan system, it realizes the stewing function. The flipping of the upper part is controlled by a knob switch.

Benefits of technology

It enables convenient use of air fryers in stewing and cooking modes, improves the sealing and lifespan of the inner pot structure, and enhances the ease of operation of the lid.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an air fryer with a stewing structure on the lower layer, and aims to solve the technical problems that a pot cover in the stewing structure on the lower layer of the existing similar product is inconvenient to use, and an upper machine body and a lower machine body are rarely used in a small-angle opening mode. The air fryer is characterized in that an upper fryer body which can be opened in an overturning mode is arranged above the lower fryer body at the position, placed in the inner stewing pot assembly, of the lower layer of the air fryer, the rear portion of one side of the upper fryer body is hinged to the rear portion of the lower fryer body through a rotating shaft, and an inner pot cover is arranged at the bottom of the upper fryer body above a pot opening in the top of an inner stewing pot of the inner stewing pot assembly. A bottom cover opening of the inner pot cover is provided with a steam sealing ring which is integrally connected with the inner pot cover, and an exhaust hole in the inner pot cover of the stewing inner pot assembly is communicated with the steam sealing ring and one end of a steam channel piece in the bottom of the upper machine body; after the upper machine body is turned upwards to be opened through the rotating shaft, a stewing inner pot assembly is placed in the lower machine body, and when the upper machine body is turned downwards to be closed through the rotating shaft, the inner pot cover covers a pot opening at a stewing inner pot of the stewing inner pot assembly and is sealed through a steam sealing ring.
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Description

TECHNICAL FIELD

[0001] The utility model relates to air fryer, it is a lower layer with stew structure's air fryer. BACKGROUND

[0002] Air fryer is a kind of new type household appliance using high-speed air circulation technology to food is fried, the food made by it can reduce 80% oil compared with traditional electric fryer, it is easy to clean in daily use, both safe and economic, and people are favored. Some air fryers of the prior art realize bottom heating through the IH coil heating disc at the bottom, such as the air fryer disclosed in Chinese patent document with application publication number CN119257464A, application publication date 2025.01.07 and invention name "bottom IH coil heating disc air fryer". The inner pot of the air fryer is provided with a soup pot in the middle of the bottom, thereby having an inner pot steam cooking function. Some other air fryers realize steam cooking function through the spray holes at the top or bottom of the pot body and the water tank of the machine head. Even though some air fryers have a sealed pot cover at the inner pot, they still need the spray holes at the bottom to generate steam and cook. However, the above-mentioned products and similar products rarely use an inner pot structure for stewing cooking. This type of stewing cooking method has high sealing requirements in the machine body, and the hole diameter of the fan blade and the heating pipe is prone to produce steam flow channel, thereby affecting the service life and use of the parts. At the same time, the stewing cooking method is different from the steam cooking method, and generally needs to realize the heating of the inner pot through the bottom heating element, without the need for a spray structure design. In particular, the pot cover is inconvenient to use, and the machine body lacks a structure design for opening and closing by turning the upper and lower machine bodies. SUMMARY

[0003] To overcome the above-mentioned shortcomings, the utility model aims to provide an air fryer with a lower layer and a stew structure, which solves the technical problems that the existing air fryer products are difficult to use an inner pot structure for stewing cooking, and the inner pot structure lacks a pot cover under the stewing cooking method, especially the pot cover is inconvenient to use, and the pot cover lacks a structure design for opening and closing by being fixed to the bottom of the upper machine body and turning the upper and lower machine bodies. Further, the stewing pot lacks a structure design for opening and closing by turning the upper and lower machine bodies. The purpose is achieved through the following technical solutions.

[0004] The application discloses an air fryer with stewing structure, which comprises an upper body and a lower body. The outer diameter of the upper body is provided with a shell, one side of the upper body is provided with an exhaust cover, and the front side of the upper body is provided with an air frying inner pot assembly. A groove of a hardware lining in the upper body is provided with an electric heating tube. A second fan is arranged in a partition of the hardware lining at the rear of the upper body. A through hole of the hardware lining is arranged at equal intervals and is aligned with a honeycomb hole at the rear of one side of an air frying inner pot of the air frying inner pot assembly. A motor shaft of a motor at the rear of the hardware lining is connected with the second fan. A stewing inner pot assembly is arranged in the lower body below the air frying inner pot assembly. The shell of the stewing inner pot assembly is slid into a sidewall slide rail at the opening of the front side of the lower body below or is directly placed in the opening of the front side and the two walls of the lower body below. A bottom plate of the lower body is provided with a base. The base is provided with a bottom heating element and a first fan. The bottom heating element, the first fan, the second fan motor and the electric heating tube are connected with a controller circuit board in the body through a line. The structure design points are that the rear of the other side of the upper body is hinged to the rear of the lower body through a rotating shaft. The bottom of the upper body above the top of the stewing inner pot of the stewing inner pot assembly is provided with an inner pot cover. The bottom cover of the inner pot cover is provided with a steam sealing ring. An exhaust hole of the inner pot cover of the stewing inner pot assembly is communicated with the steam sealing ring and one end of a steam passage in the bottom of the upper body. The other end of the steam passage is used for discharging steam out of the upper body or the lower body. When the upper body is turned upward through the rotating shaft, the stewing inner pot assembly is placed in the lower body. When the upper body is turned downward through the rotating shaft, the inner pot cover is combined with the stewing inner pot of the stewing inner pot assembly, and the combination is sealed through the steam sealing ring.

[0005] One end of the rotating shaft is arranged outside one side of the lower body and is provided with a knob switch. The two ends of the rotating shaft in the lower body are respectively provided with a torsion spring. When the knob switch is rotated to drive the rotating shaft to be unlocked, the upper body is turned upward and opened. When the knob switch is released to drive the rotating shaft to be reset and locked, the upper body is locked and fixed to the lower body.

[0006] The rotating shaft is provided with a limiting hardware plate and a corresponding limiting hole between the upper body and the lower body. The opening angle between the upper body and the lower body is less than 15 degrees.

[0007] The bottom heating element is an IH coil heating disc, a cast iron / aluminum electric heating disc or another electric heating tube. The center of the IH coil heating disc is provided with a second NTC temperature sensor which is arranged outside the bottom plate of the lower body. The end of the second NTC temperature sensor is in contact with the bottom of the stewing inner pot of the stewing inner pot assembly. The second NTC temperature sensor is connected with the controller circuit board in the body through a line.

[0008] The rear side end angle of the top of the shell of the upper body is provided with a steam hole. The other end of the steam passage is connected with the steam hole in the upper body through a pipeline and is used for discharging steam out of the upper body.

[0009] The stewing inner pot assembly has a first NTC temperature sensor that extends through the inner pot lid and steam sealing ring above it. The first NTC temperature sensor is connected to the controller circuit board inside the machine via a circuit.

[0010] The stewing inner pot assembly has an integral outer shell on its outer diameter, and the front outer diameter of the outer shell may have a handle.

[0011] The second fan at the rear of the metal lining partition connected to the upper body includes a hot fan and a cold fan. The cold fan is located inside the air guide shroud at the rear of the metal lining, and the motor is located at the rear of the air guide shroud. The hot fan and the cold fan are connected by a motor shaft that passes through the metal lining partition. The hot fan is a metal centrifugal stirring fan or a metal impeller stirring fan, and the cold fan is a plastic centrifugal cooling fan or a metal centrifugal cooling fan.

[0012] The hot fan and electric heating tube are located in the groove of the top metal lining above the opening of the air fryer inner pot assembly in the upper body. The cold fan is located in the air guide shroud above the top metal lining. The motor shaft at the motor above the air guide shroud passes through the air guide shroud and the top metal lining and is connected to both the hot fan and the cold fan.

[0013] The stewing inner pot assembly is an independent stewing pot body, which is a high borosilicate glass pot or an iron-conductive magnetic pot body.

[0014] This utility model has a reasonable structural design, a wide range of applications, and diverse structural forms. It is convenient to use for air frying and stewing, especially the lid and stewing pot, which are convenient to open and close by flipping the upper and lower bodies. It is suitable for use as an air fryer with a stewing structure in the lower layer, as well as for structural improvements of similar products. Attached Figure Description

[0015] Figure 1 This is a partial exploded structural diagram of the upper body in the open state of Embodiment 1 of this utility model.

[0016] Figure 2 yes Figure 1 A three-dimensional structural diagram of the upper body in the open state after assembly.

[0017] Figure 3 yes Figure 2 A cross-sectional structural diagram.

[0018] Figure 4 yes Figure 2 A three-dimensional structural diagram of the stewing inner pot assembly in its removed state.

[0019] Figure 5 yes Figure 2 A three-dimensional structural diagram of the upper body in its closed state.

[0020] Figure 6 yes Figure 5 A cross-sectional structural diagram.

[0021] Figure 7 yes Figure 6 A schematic diagram of the outer structure.

[0022] Figure 8 This is a three-dimensional structural schematic diagram of Embodiment 2 of this utility model.

[0023] Figure 9 yes Figure 8 A schematic diagram of the exploded internal structure of the base.

[0024] Figure 10 This is a cross-sectional structural diagram of Embodiment 3 of this utility model.

[0025] Attached Figure Numbers and Names: 1. Upper Body, 2. Lower Body, 201. Base Plate, 3. Rotary Shaft, 4. Knob Switch, 5. First NTC Temperature Sensor, 6. Second NTC Temperature Sensor, 7. First Fan, 8. IH Coil Heating Plate, 9. Base, 10. Outer Shell, 11. Stewing Inner Pot, 12. Steam Sealing Ring, 13. Inner Pot Lid, 14. Torsion Spring, 15. Air Fryer Inner Pot Assembly, 16. Grill Rack, 17. Housing, 1701. Steam Hole, 18. Hot Fan, 19. Motor, 20. Cold Fan, 21. Air Guide Cover, 22. Steam Channel Component, 23. Heating Element, 24. Handle, 25. Cast Iron / Aluminum Heating Plate, 26. High Borosilicate Glass Pot. Implementation

[0026] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figures 1-7 In the first embodiment shown, the air fryer body includes an upper body 1 and a lower body 2. The upper body has a casing 17 on its outer diameter and an exhaust hood on one side. An air fryer inner pot assembly 15 is installed in an opening on one side of the front of the upper body. A grill rack 16 is installed in the air fryer inner pot of the air fryer inner pot assembly. An electric heating tube 23 is installed in a groove in the metal lining of the upper body. A second fan is installed in a metal lining partition that communicates with the rear of the upper body. Through holes equidistantly arranged in the metal lining partition are connected to the rear side of the air fryer inner pot of the air fryer inner pot assembly. The honeycomb holes are aligned, and the motor shaft at the motor 19 at the rear of the metal liner is connected to the second fan. The stewing inner pot assembly is located in the lower body below the air fryer inner pot assembly. The outer shell 10 of the stewing inner pot assembly is directly inserted into the openings on one side and two walls of the front part of the lower body through the symmetrically provided lifting ears on both sides. The bottom of the bottom plate 201 in the lower body is provided with a base 9. The base is provided with a bottom heating element and a first fan 7. The bottom heating element and the corresponding components, as well as the first fan, the second fan motor and the heating element, are connected to the controller circuit board in the body through wiring.

[0027] The other rear part of the upper body is hinged to the rear part of the lower body via a pivot 3. The bottom of the upper body above the top opening of the inner pot 11 of the stewing inner pot assembly is provided with an inner pot cover 13. The bottom opening of the inner pot cover is provided with an integral steam sealing ring 12. The exhaust hole at the inner pot cover of the stewing inner pot assembly is connected to the steam sealing ring and one end of the inner steam channel component 22 at the bottom of the upper body. Steam is discharged from the other end of the steam channel component to the upper body or the lower body. After the upper body is opened by rotating the pivot upwards, the stewing inner pot assembly is placed inside the lower body. When the upper body is closed by rotating the pivot downwards, the inner pot cover is closed with the opening of the inner pot of the stewing inner pot assembly and sealed by the steam sealing ring. One end of the rotating shaft extends out to one side of the lower body and is equipped with a knob switch 4 integrated with it. Both ends of the rotating shaft inside the lower body are equipped with torsion springs 14. When the knob switch is rotated to unlock the rotating shaft, the upper body flips up and down to open. When the switch is released, the torsion spring drives the rotating shaft to reset and lock, and the upper body is locked and fixed to the lower body.

[0028] A limiting hardware plate and a corresponding limiting hole are provided between the upper and lower body at the aforementioned pivot point, and the opening angle between the upper and lower body is less than 15 degrees.

[0029] The aforementioned bottom heating element is an IH coil heating plate 8, a cast iron / aluminum electric heating plate 25, or another electric heating tube. A second NTC temperature sensor 6, extending from the center of the IH coil heating plate and protruding from the bottom plate of the lower body, is located on the center of the IH coil heating plate. The protruding end of the second NTC temperature sensor contacts the bottom of the inner pot of the stewing inner pot assembly. The second NTC temperature sensor is connected to the controller circuit board inside the body via wiring. A steam hole 1701 is located at one rear corner of the top of the upper body casing. The other end of the steam passage component is connected to the steam hole inside the upper body via a pipe, allowing steam to exit the upper body. A first NTC temperature sensor 5, extending through the inner pot lid and steam sealing ring, is located above the inner pot of the stewing inner pot assembly. The first NTC temperature sensor is connected to the controller circuit board inside the body via wiring.

[0030] The second fan at the rear of the metal lining partition connected to the upper body includes a hot fan 18 and a cold fan 20. The cold fan is located inside the air guide shroud 21 at the rear of the metal lining, and the motor is located at the rear of the air guide shroud. The hot fan and the cold fan are connected by a motor shaft that passes through the metal lining partition. The hot fan is a metal centrifugal stirring fan or a metal impeller stirring fan, and the cold fan is a plastic centrifugal cooling fan or a metal centrifugal cooling fan.

[0031] like Figures 8-9 In the second embodiment shown, based on the first embodiment, the inner pot of the stewing inner pot assembly has an integral outer shell 10. The front outer diameter of the outer shell may have a handle 24, and the bottom heating element is a cast iron / aluminum heating plate. The outer shell of the stewing inner pot assembly slides into a side wall slide rail on the side of the opening at the front of the lower body via symmetrically arranged lifting lugs on both sides.

[0032] like Figure 10 In the third embodiment shown, the aforementioned hot fan and heating element are further disposed in the groove of the top metal lining above the opening of the air fryer inner pot assembly within the upper body. The cold fan is disposed within the air guide shroud above the top metal lining. The motor shaft at the motor above the air guide shroud passes through the air guide shroud and the top metal lining, and is connected to both the hot fan and the cold fan. The stewing inner pot of the aforementioned stewing inner pot assembly is an independent stewing pot body, which is a high borosilicate glass pot 26 or an iron-magnetic pot body.

[0033] When in use, rotate the knob switch to unlock the shaft, then open the upper body, take out the stewing inner pot assembly and use it; after putting the stewing inner pot assembly in, close the upper body and lock the rotary switch, then select and press the corresponding stewing mode button according to the control panel.

[0034] In summary, the core structural and functional features of this air fryer are described as follows: 1) Upper air frying function, lower stewing function; 2) Upper air frying component rotates upward to open; 3) Upper air frying component is fixed with the inner pot lid and steam sealing ring; 4) Lower stewing component is easy to remove separately; 5) Lower stewing heating method (using IH electromagnetic heating, electric heating tube, electric heating plate, etc.).

[0035] The above description is intended to illustrate the technical means of this utility model and is not intended to limit the technical scope of this utility model. Any obvious improvements or substitutions made to this utility model by those skilled in the art based on existing common knowledge also fall within the protection scope of the claims of this utility model.

Claims

1. A lower layer with stew structure air fryer, the machine body of the air fryer comprises an upper machine body (1) and a lower machine body (2), the outer diameter of the upper machine body is provided with a machine shell (17), one side of the upper machine body is provided with an exhaust hood, the opening of the front side of the upper machine body is provided with an air frying inner pot assembly (15), the recess of the hardware lining in the upper machine body is provided with an electric heating tube (23), the second fan is arranged in the partition of the hardware lining communicated with the rear part of the upper machine body, the through hole arranged equidistantly in the partition of the hardware lining is aligned with the honeycomb hole in the rear part of one side of the air frying inner pot of the air frying inner pot assembly, the motor shaft of the motor (19) in the rear part of the hardware lining is connected with the second fan, the stew inner pot assembly is arranged in the lower machine body below the air frying inner pot assembly, the shell (10) of the stew inner pot assembly is slid into the side wall slide rail in the opening of the front part of the lower machine body below through the lifting ears arranged symmetrically on both sides, or is directly placed in the opening of the front part of the lower machine body below and the opening of the two walls; the bottom of the bottom plate (201) in the lower machine body is provided with a base (9), the base is provided with a bottom heating element and a first fan (7), the bottom heating element corresponds to the parts, and the first fan, the second fan motor and the electric heating tube are connected with the controller circuit board in the machine body through the line; characterized in that The other side of the upper body (1) rear part is hinged with the rear part of the lower body (2) through a rotating shaft (3), the bottom of the upper body above the top of the stewing inner pot (11) of the stewing inner pot assembly is provided with an inner pot cover (13), the bottom cover of the inner pot cover is provided with a steam sealing ring (12) connected as a whole, the exhaust hole of the inner pot cover of the stewing inner pot assembly is communicated with the steam sealing ring and the one end of the inner steam passage (22) of the bottom of the upper body, the other end of the steam passage discharges steam out of the upper body or the lower body; after the upper body is turned up through the rotating shaft to be opened, the stewing inner pot assembly is put into the lower body, when the upper body is turned down through the rotating shaft to be closed, the inner pot cover is combined with the stewing inner pot of the stewing inner pot assembly, and is sealed through the steam sealing ring.

2. The lower belt braise structure air fryer of claim 1, wherein One end of the rotating shaft (3) extends out of one side of the lower body (2) and is provided with a knob switch (4) connected as a whole, the rotating shaft is provided with a torsional spring (14) at each end in the lower body; when the knob switch is rotated to drive the rotating shaft to be unlocked, the upper body (1) is turned up and down to be opened, when the knob switch is released to drive the rotating shaft to be reset and locked, the upper body is locked and fixed to the lower body (2).

3. The lower belt braise structure air fryer of claim 2, wherein The upper body (1) and the lower body (2) are provided with a limiting hardware plate and a corresponding limiting hole at the rotating shaft (3), the opening angle between the upper body and the lower body is less than 15 degrees.

4. The lower belt braise structure air fryer of claim 1, wherein The bottom heating element is an IH coil heating disc (8), a cast iron / aluminum electric heating disc (25) or another electric heating tube (23), the center of the IH coil heating disc is provided with a second NTC temperature sensor (6) extending out of the bottom plate (201) in the lower body (2), the end of the second NTC temperature sensor extending out is in contact with the bottom of the stewing inner pot (11) of the stewing inner pot assembly, and the second NTC temperature sensor is connected with the controller circuit board in the body through a line.

5. The lower belt braise structure air fryer of claim 1, wherein The rear side end corner of the top of the shell (17) of the upper body (1) is provided with a steam hole (1701), the other end of the steam passage (22) is connected with the steam hole in the upper body through a pipeline and discharges steam out of the upper body.

6. The lower belt braise structure air fryer of claim 1, wherein The stewing inner pot (11) of the stewing inner pot assembly is provided with a first NTC temperature sensor (5) extending in through the inner pot cover (13) and the steam sealing ring (12), and the first NTC temperature sensor is connected with the controller circuit board in the body through a line.

7. The lower belt braise structure air fryer of claim 1, wherein The outer diameter of the stewing inner pot (11) of the stewing inner pot assembly is provided with an outer shell (10) connected as a whole, and the front outer diameter of the outer shell is provided with a handle (24).

8. The lower belt braise structure air fryer of claim 1, wherein The second fan in the rear part of the hardware lining of the upper body (1) includes a hot fan (18) and a cold fan (20), the cold fan is arranged in the air guide cover (21) in the rear part of the hardware lining, the motor (19) is arranged in the rear part of the air guide cover, and the hot fan and the cold fan are connected through the motor shaft penetrating the hardware lining; the hot fan is a hardware centrifugal stirring fan blade or a metal wind wheel stirring fan blade, and the cold fan is a plastic centrifugal heat dissipation fan blade or a metal centrifugal heat dissipation fan blade.

9. The lower belt braise structure air popper of claim 8, wherein The hot fan (18) and the electric heating tube (23) or the recess of the top hardware lining arranged above the air-frying inner pot of the air-frying inner pot assembly (15) in the upper machine body (1), the cold fan (20) is arranged in the air guide cover (21) above the top hardware lining, the motor shaft of the motor (19) above the air guide cover penetrates the air guide cover and the top hardware lining and is connected with the hot fan and the cold fan.

10. The lower belt braise structure air fryer of claim 1, wherein The stewing inner pot (11) of the stewing inner pot assembly is an independent stewing pot body, and the stewing pot body is a high borosilicate glass pot (26) or an iron magnetic pot body.

Citation Information

Patent Citations

  • Air fryer with IH coil heating plate at bottom

    CN119257464A