New type of top and bottom blowing double pot air fryer

Abstract

This utility model relates to a novel top-and-bottom top-blowing double-pot air fryer, addressing the problem of poor cooking performance in existing double-pot air fryers due to their high pot height and lack of top-blowing technology for both pots. The key features are: In the upper pot, an upper heating element and an upper metal centrifugal fan are sequentially arranged in a groove within the upper metal insulation layer; an upper plastic centrifugal fan is housed within the upper plastic air guide cover; and a motor shaft at the top of the upper plastic centrifugal fan connects to both the upper plastic and metal centrifugal fan blades. Similarly, in the lower frying basket assembly, a lower heating element and a lower centrifugal fan are sequentially arranged in a groove within the lower metal insulation layer; a lower plastic centrifugal fan is housed within the lower plastic air guide cover; and a motor shaft at the top of the lower plastic centrifugal fan connects to both the lower plastic and metal centrifugal fan blades. The upper and lower pots are flat, narrow, and elongated pots of the same or different sizes.

Description

Technical Field

[0001] This utility model relates to an air fryer, specifically a novel double-pot air fryer with top and bottom air blowing. Background Technology

[0002] An air fryer is a new type of household appliance that uses high-speed air circulation technology to fry food. Compared to traditional electric fryers, it reduces oil content by up to 80%, is easy to clean, and is both safe and economical, making it very popular. To improve efficiency, some air fryers feature double chambers (upper and lower or left and right), with some employing a double-layered body and chamber structure. Both chambers utilize top-heating and airflow from the upper chamber, as seen in Chinese patent application publication number CN118948131A, published on November 15, 2024, entitled "A Dual-Cavity Air Fryer." However, these products and similar products often have a significant temperature difference between the upper and lower chambers, making it difficult to simultaneously process foods requiring high temperatures. Especially without reducing the height of the chamber, achieving optimal cooking results is challenging, leading to less than ideal food processing outcomes. Summary of the Invention

[0003] To overcome the above shortcomings, the purpose of this utility model is to provide a novel top-and-bottom top-blowing double-pot air fryer, which solves the problems of large temperature differences between the upper and lower chambers of existing double-pot air fryers, making it difficult to simultaneously process foods requiring high temperatures, resulting in poor food processing effects. In particular, the relatively high height of the pot body further contributes to poor cooking results in both the upper and lower pots, and the lack of top-blowing technology for both upper and lower sections further exacerbates the problem. This objective is achieved through the following technical solution.

[0004] A novel top-and-bottom blower type double-pot air fryer has an upper frying basket assembly and a lower frying basket assembly respectively installed at the upper and lower openings on one side of the air fryer body, which house the upper and lower metal lining cavities. The cold air system chambers inside the body are connected vertically and horizontally through a plastic partition in the middle, forming the upper and lower metal lining cavities. The upper frying basket assembly has an upper handle on the outside of the frying basket lining and an upper grill rack inside the upper pot inside the frying basket lining. The lower frying basket assembly has a lower handle on the outside of the frying basket lining and a lower grill rack inside the lower pot inside the frying basket lining. The key structural design features an upper heating element and an upper metal centrifugal fan blade sequentially arranged in a groove within the upper metal insulation layer of the upper frying basket assembly. An upper plastic centrifugal fan blade is located within the upper plastic air guide hood at the top of the upper metal insulation layer inside the machine body. The motor shaft at the upper motor at the top of the upper plastic centrifugal fan blade is connected to both the upper plastic and upper metal centrifugal fan blades. Similarly, a lower heating element and a lower metal centrifugal fan blade are sequentially arranged in a groove within the lower metal insulation layer of the lower frying basket assembly. A lower plastic centrifugal fan blade is located within the lower plastic air guide hood at the top of the lower metal insulation layer inside the machine body. The motor shaft at the lower motor at the top of the lower plastic centrifugal fan blade is connected to both the lower plastic and lower metal centrifugal fan blades. The upper and lower frying baskets are flat, narrow, and elongated pots of the same or different sizes. The above structure overcomes the difficulty of achieving a dual-pot structure design with top and bottom air blowing in existing similar air fryer products. Specifically, it is difficult to achieve the cooking effect of air frying food in the upper and lower pots. In particular, the dual-top blowing structure design has high requirements for the height of the machine and the cooking effect, and its application in existing similar products is rare.

[0005] The top plane groove of the plastic partition is provided with two symmetrically arranged guide ribs. When the bottom of the upper pot body is placed into the top plane groove of the plastic partition, the guide grooves symmetrically arranged on both sides of the bottom of the upper pot body are fitted into the guide ribs of the plastic partition.

[0006] The guide ribs of the plastic partition are set in the middle of the corresponding ring platform in the top plane groove of the plastic partition. The guide ribs extend out of the top plane groove of the plastic partition through the ring platform and are connected to the bottom of the upper metal heat insulation layer as an integral upper metal heat insulation liner.

[0007] The bottom of the plastic partition has a downward protrusion at one side or rear of the hood opening, and the air outlets of the upper and lower plastic air guides are respectively connected to the exhaust holes on one side or rear of the machine body. The lower plastic air guide is connected to the exhaust holes on one side or rear of the machine body through the lower air guide opening of the plastic partition.

[0008] The bottom of the plastic partition has downward protrusions at the circumference of the cover opening, and the upper and lower outer diameters are respectively provided with equally spaced and protruding screw mounting posts. The plastic partition is connected to the upper hardware liner and the lower hardware liner as a whole through the screw mounting posts.

[0009] The front panel of the plastic partition is flush with the openings at the top and bottom of the machine body, or the front edge of the plastic partition is located at the top and bottom openings of the machine body.

[0010] The top flat groove of the plastic partition is provided with an upper metal heat insulation lining that is integrated with the bottom of the upper metal heat insulation layer.

[0011] The bottom opening of the outer shell of the machine body is provided with a base, and a plastic base plate is provided inside the base, which is connected to the lower lining opening of the lower hardware lining. The top of the plastic base plate is provided with a lower hardware heat insulation lining that is integrated with the bottom of the lower hardware heat insulation layer.

[0012] The upper frying basket assembly has a PCB control component above the opening on one side of the machine body. On the other side of the PCB control component, at the rear corner, there is a power board assembly inside the machine body. The power board assembly, the upper heating element, the lower heating element, the lower motor, and the upper motor are connected to the PCB control component inside the machine body through wiring.

[0013] This utility model has a simple and reasonable structural design, good heat conduction effect, and fast food cooking and processing. In particular, it is convenient to process foods that require high temperature cooking simultaneously in the upper and lower chambers. It is suitable for use as a new type of double-pot air fryer with top and bottom air blowing, as well as for structural improvements of similar products. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention.

[0015] Figure 2 yes Figure 1 Schematic diagram of cross-section Figure 1 .

[0016] Figure 3 yes Figure 1 Schematic diagram of cross-section Figure 2 .

[0017] Figure 4 yes Figure 1 A three-dimensional structural diagram of the upper or lower frying basket assembly after it has been removed.

[0018] Figure 5 yes Figure 1 A schematic diagram of the three-dimensional structure of the plastic partition inside the machine.

[0019] Figure 6 yes Figure 1 A schematic diagram of the internal structure of the rear fuselage in cross-section.

[0020] Attached Figure Numbers and Names: 1. Main Body, 2. Upper Frying Basket Assembly, 3. Lower Frying Basket Assembly, 4. PCB Control Assembly, 5. Upper Metal Insulation Layer, 6. Upper Heating Element, 7. Upper Handle, 8. Upper Pot Body, 9. Upper Grill Rack, 10. Lower Metal Insulation Layer, 11. Lower Heating Element, 12. Lower Handle, 13. Lower Pot Body, 14. Lower Grill Rack, 15. Lower Metal Centrifugal Fan, 16. Lower Plastic Centrifugal Fan, 17. Lower Motor, 18. Upper Metal Centrifugal Fan, 19. Upper Plastic Centrifugal Fan, 20. Power Board Assembly, 21. Upper Motor, 22. Upper Plastic Air Guide Cover, 23. Upper Metal Lining, 24. Plastic Partition, 2401. Guide Rib, 2402. Lower Air Guide Cover Opening, 2403. Screw Mounting Post, 25. Lower Plastic Air Guide Cover, 26. Lower Metal Lining, 27. Base, 28. Plastic Base Plate. Implementation

[0021] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figure 1-6 As shown, the air fryer body 1 has an upper frying basket assembly 2 and a lower frying basket assembly 3 respectively installed at the upper and lower openings on one side, which are used to house the upper and lower metal lining cavities. The cold air system chamber channel inside the body is connected to the upper and lower parts through the middle plastic partition 24 to form the upper and lower metal lining cavities. The upper frying basket assembly has an upper handle 7 on the outside of the frying basket lining, and an upper grill rack 9 is installed in the upper pot body 8 inside the frying basket lining. The lower frying basket assembly has a lower handle 12 on the outside of the frying basket lining, and a lower grill rack 14 is installed in the lower pot body 13 inside the frying basket lining. Meanwhile, in the upper pot body of the upper frying basket assembly, five grooves in the upper metal heat insulation layer are sequentially provided with upper heating tubes 6 and upper metal centrifugal fan blades 18. An upper plastic centrifugal fan blade 19 is provided inside the upper plastic air guide hood 22 at the top of the upper metal heat insulation layer inside the machine body. The motor shaft at the upper motor 21 at the top of the upper plastic centrifugal fan blade is connected to the upper plastic centrifugal fan blade and the upper metal centrifugal fan blade. In the lower pot body of the lower frying basket assembly, ten grooves in the lower metal heat insulation layer are sequentially provided with lower heating tubes 11 and lower metal centrifugal fan blades 15. A lower plastic centrifugal fan blade 16 is provided inside the lower plastic air guide hood 25 at the top of the lower metal heat insulation layer inside the machine body. The motor shaft at the lower motor 17 at the top of the lower plastic centrifugal fan blade is connected to the lower plastic centrifugal fan blade and the lower metal centrifugal fan blade. The upper pot body and the lower pot body are flat, narrow, and long pot bodies of the same or different sizes.

[0022] The top flat groove of the aforementioned plastic partition has two symmetrically arranged guide ribs 2401. When the bottom of the upper pot body is placed into the top flat groove of the plastic partition, the guide grooves symmetrically arranged on both sides of the bottom of the upper pot body fit into the guide ribs of the plastic partition. The guide ribs of the plastic partition are located in the middle of the corresponding ring platform within the top flat groove of the plastic partition. The guide ribs extend out of the top flat groove of the plastic partition through the ring platform and are integrally connected to the bottom of the upper metal heat insulation layer. A lower air guide hood opening 2402 is provided on one side or rear of the downward-protruding hood surface at the bottom of the plastic partition. The air outlets of the upper and lower plastic air guide hoods are respectively connected to the exhaust vents on one side or rear of the machine body. The lower plastic air guide hood is connected to the exhaust vents on one side or rear of the machine body through the lower air guide hood opening of the plastic partition. The bottom of the plastic partition has downward-protruding screw mounting posts 2403, evenly spaced and protruding on the upper and lower outer diameters of the circumference of the cover opening. The plastic partition is integrated with the upper and lower metal linings via these screw mounting posts. The top flat groove of the plastic partition contains an upper metal heat insulation lining that is integrated with the bottom of the upper metal heat insulation layer. The front panel of the plastic partition is flush with the openings at the top and bottom of the machine body.

[0023] The outer shell of the aforementioned machine body has a base 27 at the bottom opening. Inside the base is a plastic base plate 28 that connects to the lower lining opening of the lower hardware lining. The top of the plastic base plate has a lower hardware heat insulation lining that is integrated with the bottom of the lower hardware heat insulation layer. The top of the lower hardware heat insulation lining has a raised rib corresponding to the bottom groove of the lower pot body. Above the upper opening on one side of the upper frying basket assembly is a PCB control assembly 4. On the other side of the PCB control assembly, at the rear corner, is a power board assembly 20 inside the machine body. The power board assembly, upper heating element, lower heating element, lower motor, and upper motor are connected to the PCB control assembly inside the machine body via wiring.

[0024] This air fryer uses a traditional top-blowing design for stacking, along with a flat and narrow pot body, minimizing the stacking space while still meeting consumers' capacity needs.

[0025] In use, the lower basket of the double-basket air fryer is removed using the lower handle of the lower basket assembly. After food is placed on the lower rack inside the lower basket, the lower basket assembly is reinserted into the machine using the lower handle. Alternatively, the upper basket of the upper basket assembly is removed using the upper handle of the upper basket assembly. After food is placed on the upper rack inside the upper basket, the upper basket assembly is reinserted into the machine using the upper handle. Finally, pressing the corresponding cooking button on the control panel of the PCB control component will automatically process and cook the food in either the lower or upper basket.

Claims

1. A novel top-and-bottom blower type double-pot air fryer, wherein the air fryer body (1) has an upper frying basket assembly (2) and a lower frying basket assembly (3) respectively installed at the upper and lower openings on one side, and the cold air system chamber channels inside the body are connected to form the upper and lower metal lining cavities through the middle plastic partition (24); characterized in that The upper heating tube (6) and the upper metal centrifugal fan (18) are arranged in sequence in the groove of the upper metal heat insulation layer (5) above the upper pot body (8) of the upper frying basket assembly (2). The upper plastic centrifugal fan (19) is arranged in the upper plastic air guide hood (22) at the top of the upper metal heat insulation layer inside the machine body (1). The motor shaft at the upper motor (21) at the top of the upper plastic centrifugal fan is connected to the upper plastic centrifugal fan and the upper metal centrifugal fan. The lower heating tube (11) and the lower metal centrifugal fan (15) are arranged in sequence in the groove of the lower metal heat insulation layer (10) above the lower pot body (13) of the lower frying basket assembly (3). The lower plastic centrifugal fan (16) is arranged in the lower plastic air guide hood (25) at the top of the lower metal heat insulation layer inside the machine body. The motor shaft at the lower motor (17) at the top of the lower plastic centrifugal fan is connected to the lower plastic centrifugal fan and the lower metal centrifugal fan. The upper pot body and the lower pot body are flat and narrow pot bodies of the same or different sizes.

2. The new top and bottom blast air fryer double pot air fryer according to claim 1, characterized in that The top plane groove of the plastic partition (24) is provided with two symmetrically arranged guide ribs (2401). When the bottom of the upper pot body (8) is placed into the top plane groove of the plastic partition, the guide grooves symmetrically arranged on both sides of the bottom of the upper pot body are fitted into the guide ribs of the plastic partition.

3. The new top and bottom blast air fryer double pot air fryer according to claim 2, characterized in that The guide rib (2401) of the plastic partition (24) is set in the middle of the corresponding ring platform in the top plane groove of the plastic partition. The guide rib extends out of the top plane groove of the plastic partition through the ring platform and is connected to the bottom of the upper metal heat insulation layer (5) as an integral upper metal heat insulation liner.

4. The new top and bottom blast air fryer double pot air fryer according to claim 2, characterized in that The bottom of the plastic partition (24) has a downward protrusion at one side or rear of the circumference of the cover, and the air outlets of the upper plastic air guide (22) and the lower plastic air guide (25) are respectively connected to the exhaust hole on one side or rear of the machine body. The lower plastic air guide is connected to the exhaust hole on one side or rear of the machine body through the lower air guide opening of the plastic partition.

5. The novel top and bottom blast air fryer double pot air fryer according to claim 4, characterized in that The bottom of the plastic partition (24) has downward protrusions. The upper and lower outer diameters of the cover opening are provided with equally spaced and protruding screw mounting posts (2403). The plastic partition is connected to the upper hardware liner (23) and the lower hardware liner (26) as a whole through the screw mounting posts.

6. The new top and bottom blast air fryer double pot air fryer according to claim 2, characterized in that The top flat groove of the plastic partition (24) is provided with an upper metal heat insulation lining that is integrated with the bottom of the upper metal heat insulation layer (5).

7. The new top and bottom blast air fryer double pot air fryer according to claim 1, characterized in that The front panel of the plastic partition (24) is flush with the openings at the top and bottom of the body (1), or the front edge of the plastic partition is located at the top and bottom openings of the body.

8. The novel top-and-bottom top-blowing double-pot air fryer according to claim 1, characterized in that... The outer shell of the machine body (1) has a base (27) at the bottom opening. Inside the base is a plastic base plate (28) connected to the lower lining opening of the lower hardware lining (26). The top of the plastic base plate is a lower hardware heat insulation lining that is integrated with the bottom of the lower hardware heat insulation layer (10). The top of the lower hardware heat insulation lining is a raised rib corresponding to the bottom groove of the lower pot body (13).

9. The new top and bottom blast air pop dual pot air popper of claim 1, wherein The upper frying basket assembly (2) has a PCB control assembly (4) above the opening on one side of the body (1). The power board assembly (20) is located at the rear corner of the other side of the PCB control assembly. The power board assembly, the upper heating tube (6), the lower heating tube (11), the lower motor (17), and the upper motor (21) are connected to the PCB control assembly inside the body through lines.

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