Air fryer
By designing the main body cover of the air fryer as a three-section splicing structure, using snap-fit and screw connections, the problem of rigid manufacturing was solved, achieving modular design and diversified styles, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NINGBO YANRAN TECH CO LTD
- Filing Date
- 2026-02-09
- Publication Date
- 2026-04-21
AI Technical Summary
The main body of existing air fryers uses a one-piece shell structure, which leads to rigid manufacturing processes, making it difficult to adapt to different styles, increasing production costs and mold waste.
The main unit cover adopts a three-section splicing assembly structure from top to bottom, including the upper shell, middle shell and lower shell. The modular design is achieved by snap-fit and screw connection, which makes it easy to assemble and replace control panels and bases with different shapes.
The modular design of the air fryer has been achieved, which has reduced production costs, increased the variety of styles and market competitiveness, and reduced the investment in large molds.
Smart Images

Figure CN121890883A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of kitchen cooking tools, and more particularly to an air fryer. Background Technology
[0002] An air fryer is a cooking appliance that primarily heats and bakes food using rapidly circulating hot air. It utilizes air instead of the hot oil found in a frying pan to cook food; the hot air also removes surface moisture, achieving a similar effect to deep-frying. It can be understood as using high-temperature "air" as a medium to "fry" food. Air fryers on the market are mainly controlled by knobs or LCD touchscreens. The cooking process between the pot and the heating element is generally divided into two types: a semi-covered type and a covered type. The semi-covered type allows only the front of the pot to be seen during cooking, while the covered type allows the entire cooking process to be observed. However, the heating element is housed inside the lid, which can make the space cramped and limit the amount of food that can be cooked.
[0003] Further investigation reveals a Chinese patent application (patent number 202511387679 9) disclosing an air fryer with a rotating component, comprising: a main body cover with a control panel on top, a hot air component in the middle, and a protective cover at the bottom; a main pot body made of glass, with an open top for detachable assembly with the main body cover; and a base detachably mounted at the bottom of the main pot body. The key feature is the detachable second pot body between the main pot body and the main body cover. The main pot body contains a rotatable rotating component, and the outer wall of the second pot body has an output component. The output component is connected to and drives the rotating component or a rotisserie fork to rotate via a transmission component. This design is not only simple in structure and ingenious in design, allowing users to freely adjust whether to use the rotating component according to their needs, but also features convenient installation and simple operation. It effectively solves the problem of insufficient pot capacity mentioned above.
[0004] The drawback is that, like traditional air fryers, the main body lid uses an integral shell structure, which requires a large number of molds for manufacturing. Once the style is determined, a complete set of corresponding molds is needed. When the style needs to be modified or adjusted, a new set of lid molds needs to be made, resulting in rigid manufacturing, new waste, and hindering the industrial design and variation of the product. Summary of the Invention
[0005] This invention addresses the problems of existing technologies by proposing an air fryer that adopts a reasonable assembly structure for the main component, the cover, which facilitates industrial design variations and production assembly, increases the variety of styles, and reduces costs.
[0006] The technical solution of this invention is: an air fryer, comprising,
[0007] The main unit has a cover, with a control panel on the top, a heating element and its fan blades in the middle, and a protective cover at the bottom.
[0008] The main pot body is made of glass and has an open top, allowing the main body cover to be detachably assembled together.
[0009] A base is detachably mounted at the bottom of the main pot body;
[0010] Its features are as follows: the main body cover adopts a three-section splicing assembly structure from top to bottom, which has an upper shell, a middle shell and a lower shell. The upper shell and the middle shell are hollow sleeve structures, the lower shell is a cover structure with ventilation holes distributed in the middle, and the top of the upper shell has an installation port for installing and fixing the control panel.
[0011] Furthermore, the top mounting port of the upper shell uses a detachable connection structure to fix the control panel.
[0012] Furthermore, the splicing assembly structure adopts snap-fit connection and / or screw connection.
[0013] Furthermore, multiple locking feet are distributed on the inner side wall of the mounting port, and correspondingly, multiple locking holes extend downward from the bottom edge of the control panel. Through the cooperation of the locking feet and locking holes, the control panel is initially installed on the mounting port and forms the top of the main unit cover.
[0014] Furthermore, the control panel is also provided with connection holes, and correspondingly, screw connection posts are distributed on the inner side wall of the mounting port, so that the control panel is further fixed to the mounting port with screws.
[0015] Furthermore, multiple screw connecting posts extend from the lower inner wall of the upper shell, and correspondingly, multiple connecting parts extend from the upper inner wall of the middle shell, with connecting holes arranged in the connecting parts, and are detachably connected by screws.
[0016] Furthermore, to facilitate assembly and positioning, the lower part of the upper shell has an insertion edge along the opening, while the upper part of the middle shell has an annular positioning groove along the opening for the insertion and positioning of the lower insertion edge of the upper shell.
[0017] Furthermore, multiple screw connecting posts extend from the lower inner wall of the middle shell, and correspondingly, multiple connecting posts are distributed on the outer peripheral edge of the lower shell. The connecting posts have connecting holes, and the tops of the middle shell and the lower shell are detachably connected by screws.
[0018] Furthermore, to facilitate positioning and assembly, annular positioning edges are distributed on the top of the lower shell. These annular positioning edges are fixed to the outside of the connecting posts with screws, and the inner part of the annular positioning edges is an arc-shaped mounting groove used to arrange the screw connecting posts and the inner support ribs.
[0019] Furthermore, the heating component is disposed inside the lower shell and includes a protective mesh, a heating element, and a heating element cover. The heating element is located at the bottom of the protective mesh to reduce the obstruction of heat from the heating element by the protective mesh.
[0020] Furthermore, the bottom of the lower shell is provided with a movable inner ring, the inner wall of which extends upward into the heating tube cover, guiding the hot air blown down by the fan blades into the main pot body, thus achieving the functions of guiding and heat insulation.
[0021] Finally, the base is a base with a U-shaped cross section, an H-shaped cross section, or a base with fully enclosed low sidewalls.
[0022] Compared with the prior art, the technical advantages of this invention are as follows: the main component, the main body cover, adopts a reasonable assembly structure, which facilitates modular design and assembly. During the manufacturing process, different shapes of upper shell, middle shell, lower shell, control panel and its movable inner ring can be selected and combined according to the user's needs, which can extend to a variety of styles and specifications of air fryers, reduce the investment in large-volume molds, reduce manufacturing costs, enhance the appearance, and the base at the bottom of the main pot body also has different styles of bases to choose from, which enhances market competitiveness. The design is ingenious and the functions are rich. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0024] Figure 2 This is a three-dimensional structural diagram of the present invention (another combination of structures);
[0025] Figure 3 This is a schematic diagram of the exploded structure of the present invention;
[0026] Figure 4 This is a schematic diagram of the exploded structure of the present invention (from another angle);
[0027] Figure 5 This is a side sectional view of the present invention;
[0028] Figure 6 This is a schematic diagram of the base structure;
[0029] Figure 7 This is a three-dimensional schematic diagram of the main unit's cover;
[0030] Figure 8 This is a three-dimensional schematic diagram of the heating component;
[0031] Figure 9 This is a schematic diagram of the structure of another base;
[0032] Figure 10 A structural sectional view of the base and main pot body;
[0033] Figures 11-14 These are schematic diagrams illustrating different versions of this application.
[0034] In the diagram, 1. Main unit cover, 2. Control panel, 3. Heating component, 4. Fan blade, 5. Protective cover, 6. Main pot body, 7. Base, 8. Upper shell, 9. Middle shell, 10. Lower shell, 11. Vent, 12. Mounting port, 13. Clip, 14. Clip hole, 15. Connecting hole, 16. Screw connecting post, 17. Connecting part, 18. Connecting post, 19. Insertion edge, 20. Annular positioning groove, 21. Annular positioning edge, 22. Arc-shaped mounting groove, 23. Rib plate, 24. Mounting shaft, 25. Fan blade, 26. Protective net, 27. Heating element, 28. Movable inner ring, 29. Base foot, 30. Decorative ring, 31. Annular groove, 32. Heating element cover, 33. Side wall, 34. Handle, 35. Clip, 36. Connecting arm, 37. Buckle, 38. Handle part, 39. Positioning ring. Detailed Implementation
[0035] The embodiments of this invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0036] In the description of this invention patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention patent based on the specific circumstances.
[0037] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0038] See Figures 1 to 14An air fryer includes a main unit cover 1, a control panel 2 on the top of the main unit cover 1, a mounting cavity in the middle for mounting and fixing the heating element 3 and its fan blades 4, and a protective cover 5 with vents 11 at the bottom. The main pot body 6 is made of glass and has an open top for the main unit cover 1 to be detachably mounted on. The main pot body 6 is detachably mounted on a base 7. The key improvement is that the main unit cover 1 is a three-section splicing assembly structure from top to bottom, namely an upper shell 8, a middle shell 9, and a lower shell 10. The upper shell 8 and the middle shell 9 are hollow sleeve structures. The middle shell 9 is a transitional cylinder from a smaller cross-section to a larger cross-section. The lower shell 10 is a cover structure that forms the main body of the protective cover 5, with vents 11 distributed in the middle. The top of the shell 8 has a mounting opening 12 for mounting and fixing the control panel 2. In order to install different styles of control panels 2 during production, the mounting opening 12 on the top of the upper shell 8 adopts a detachable connection structure to fix the control panel 2. In this embodiment, a snap-fit connection and a screw connection are used. Multiple snap feet 13 are distributed on the inner side wall of the mounting opening 12. Correspondingly, multiple snap holes 14 extend downward from the bottom edge of the control panel 2. By the cooperation of the snap feet 13 and the snap holes 14, the control panel 2 is initially installed on the mounting opening 12 and forms the top of the main unit cover 1. At the same time, the control panel 2 is also provided with a connection hole 15. Correspondingly, screw connection posts 16 are distributed on the inner side wall of the mounting opening 12. Screws are used to further fix the control panel 2 on the mounting opening 12. The snap-fit connection and the screw connection also facilitate the replacement of the control panel 2. Similarly, the upper shell 8 and the middle shell 9 are also connected in a detachable manner. In this embodiment, screw connection is used. Multiple screw connecting posts 16 extend from the lower inner wall of the upper shell 8. Correspondingly, multiple connecting parts 17 extend from the upper inner wall of the middle shell 9. Connecting holes 15 are arranged in the connecting parts 17, and they are detachably connected with screws. In order to facilitate assembly and positioning, the lower part of the upper shell 8 has an insertion edge 19 along the opening, while the upper part of the middle shell 9 has an annular positioning groove 20 along the opening for the insertion edge 19 of the lower part of the upper shell to be inserted and positioned. Similarly, the middle shell 9 and the lower shell 10 are also connected in a detachable manner. In this embodiment, screw connection is used. Multiple screw connecting posts 16 extend from the lower inner wall of the middle shell 9. Correspondingly, multiple connecting posts 18 are distributed on the outer peripheral edge of the lower shell 10. The connecting posts 18 have connecting holes. The tops of the middle shell 9 and the lower shell 10 are detachably connected by screws. In order to facilitate positioning and assembly, an annular positioning edge 21 is distributed on the top of the lower shell 10 outside the screw connecting posts. It is usually fixed by screws. Furthermore, the inner part of the annular positioning edge 21 forms an arc-shaped mounting groove 22, which is used to arrange the screw connecting posts 16 and the inner support ribs 23 to strengthen the shell and reduce deformation.To enhance aesthetics and reduce the shrinkage of the middle shell at the transition section, an annular groove 31 is arranged in the stepped transition section of the middle shell 9, so that a decorative ring 30 can be fixed in the annular groove 31 by snap-fit.
[0039] The heating assembly 3 is housed within the lower shell 10. The heating assembly 3 includes a protective mesh 26, a heating element 27, and a heating element cover 32. The heating element 27 is located below the protective mesh 26, reducing the obstruction of heat from the heating element 27 by the protective mesh 26. A motor mounting shaft 24 is also provided, on which fan blades 25 are fixed. A movable inner ring 28 is located at the bottom of the lower shell 10. The inner wall of the movable inner ring 28 extends upwards into the heating element cover 32, guiding the hot air blown down by the fan blades 25 into the main pot body 6, achieving both guiding and heat insulation functions. The bottom of the base 7 is integrally equipped with multiple feet 29 for anti-slip purposes.
[0040] In another embodiment, such as Figure 10 The base 7 preferably has an H-shaped cross-section. The outermost two sides of the bottom of the base 7 are provided with strip-shaped feet 29 to enhance the anti-slip function. By shifting the center of gravity to the outside, the stability of the main pot body when placed is achieved, preventing accidental slippage. The side wall of the base 7 has front and rear connecting plates extending upward. The top of the front and rear connecting plates are connected by a top plate to form an approximately inverted U-shaped connecting arm 36. The U-shaped connecting arm 36 is separated from the side wall of the base 7 to provide heat protection. The top plate of the U-shaped connecting arm 36 has a buckle 37 that cooperates with the locking block 35 on the side of the main pot body 6. At the same time, there is also a gap between the handle 38 and the U-shaped connecting arm 36 to provide heat protection.
[0041] In another embodiment, such as Figure 9 The base 7 is a fully enclosed base, and the height of the four side walls 33 is significantly lower than the height of the main pot body 6, making it easy to observe. The left and right sides are handles 34 that extend upwards.
[0042] This application uses a three-section structure for the main unit cover 1, assembled from top to bottom. The advantage of this structure is that during manufacturing, different shapes of the upper shell 8, middle shell 9, and lower shell 10 can be selected and combined according to user needs, resulting in various styles of air fryers. Furthermore, by combining the different sizes and shapes of the movable inner ring 28 with positioning rings 39 of different sizes that cooperate with the main pot body 6 of different diameters, and with the base 7 at the bottom of the main pot body 6 also offering different styles of bases to choose from, air fryers of different styles and diameters can be assembled. See [link to relevant documentation]. Figures 11-14 This reduces the investment in large-volume molds, lowers manufacturing costs, enhances the appearance and design, and increases market competitiveness.
Claims
1. An air fryer, comprising, The main unit has a cover, with a control panel on the top, a heating element and its fan blades in the middle, and a protective cover at the bottom. The main pot body is made of glass and has an open top, allowing the main body cover to be detachably assembled together. A base is detachably mounted at the bottom of the main pot body; Its features are: The main unit cover adopts a three-section splicing assembly structure from top to bottom, which has an upper shell, a middle shell and a lower shell. The upper shell and the middle shell are hollow sleeve structures, the lower shell is a cover structure with ventilation holes in the middle, and the top of the upper shell has a mounting port for mounting and fixing the control panel.
2. The air fryer according to claim 1, characterized in that... The top mounting port of the upper shell uses a detachable connection structure to fix the control panel.
3. The air fryer according to claim 2, characterized in that... The splicing and assembly structure adopts snap-fit connection and / or screw connection.
4. The air fryer according to claim 2, characterized in that... Multiple locking feet are distributed on the inner side wall of the mounting port, and correspondingly, multiple locking holes extend downward from the bottom edge of the control panel. Through the cooperation of the locking feet and locking holes, the control panel is initially installed on the mounting port and forms the top of the main unit cover.
5. The air fryer according to claim 4, characterized in that... The control panel is also provided with connection holes. Correspondingly, screw connection posts are distributed on the inner side wall of the mounting port, and screws are used to further fix the control panel to the mounting port.
6. The air fryer according to claim 2, characterized in that... Multiple screw connecting posts extend from the lower inner wall of the upper shell, and correspondingly, multiple connecting parts extend from the upper inner wall of the middle shell. Connecting holes are arranged in the connecting parts, and they are detachably connected by screws.
7. The air fryer according to claim 6, characterized in that... The lower part of the upper shell has an insertion edge along the opening, while the upper part of the middle shell has an annular positioning groove along the opening for the insertion and positioning of the lower insertion edge of the upper shell.
8. The air fryer according to claim 2, characterized in that... Multiple screw connecting posts extend from the lower inner wall of the middle shell. Correspondingly, multiple connecting posts are distributed on the outer peripheral edge of the lower shell. The connecting posts have connecting holes, and the tops of the middle shell and the lower shell are detachably connected by screws.
9. The air fryer according to claim 8, characterized in that... The top of the lower shell has an annular positioning edge on the outside of the screw connecting post, and the inner part of the annular positioning edge is an arc-shaped mounting groove for arranging the screw connecting post and the inner support rib.
10. The air fryer according to any one of claims 1 to 9, characterized in that... The heating component is located inside the lower shell and includes a protective mesh, a heating element, and a heating element cover. The heating element is located below the protective mesh to reduce the obstruction of heat from the heating element by the protective mesh.
11. The air fryer according to any one of claims 1 to 9, characterized in that... The bottom of the lower shell is provided with a movable inner ring, the inner wall of which extends upward into the heating tube cover, guiding the hot air blown down by the fan blades into the main pot body, thus achieving the functions of guiding and heat insulation.
12. The air fryer according to any one of claims 1 to 9, characterized in that... The base is a base with a U-shaped cross section, an H-shaped cross section, or a base with fully enclosed low sidewalls.