Up-down back blowing double-pan air fryer

Abstract

The utility model relates to an up-and-down back blowing double-pan air fryer, which aims at solving the technical problems that the temperature difference between an upper cavity and a lower cavity of the existing up-and-down double-pan air fryer is large, and food with high-temperature requirements is difficult to process and cook at the same time. Fan blades are respectively arranged on the back of the air fryer, and heating pipes are respectively arranged at the tops in an upper cavity and a lower cavity; the air fryer is characterized in that the heights of top hardware heat insulation layers at top heating pipes of an upper cavity and a lower cavity in the air fryer are respectively increased from the front part of one side of an opening of a machine body to the back part to form a curved surface, and lining hardware heat insulation layers at fan blades are respectively integrated with the top hardware heat insulation layers to form hardware heat insulation layers corresponding to one side of the machine body; the upper portion of the lining hardware heat insulation layer on the back portion is provided with air outlet holes, the lower portion of the lining hardware heat insulation layer on the back portion below the air outlet holes is provided with air inlet holes, and the air inlet holes are aligned with the honeycomb type open holes in the front end of the back portion of the pot body. The machine body is provided with an air outlet and an air inlet.

Description

Technical Field

[0001] The utility model relates to an air fryer, in particular to a double-pot air fryer with upper and lower back-blowing functions. Background Art

[0002] An air fryer is a new type of household appliance that uses high-speed air circulation technology to fry food. The food it makes can reduce 80% of fat compared to traditional electric fryers. It is easy to clean in daily use, safe and economical, and is very popular among people. In order to improve the efficiency of air fryers, some air fryers are equipped with upper and lower double pots or left and right double pots. Some of these air fryers adopt an upper and lower double-layer body and pot body structure design, such as the application number 202222461172.1 disclosed in the Chinese patent literature, the authorization announcement date is 2023.03.03, and the utility model name is "A double-cavity bladeless air fryer"; further, some other such double-layer air fryers have a heating tube and a fan blade on the top of the upper layer, and another heating tube and another fan blade on the rear of the lower layer, such as the application number 202322669357.6 disclosed in the Chinese patent literature, the authorization announcement date is 2024.04.26, and the utility model name is "A "A double-layer air fryer"; further, there are some such double-layer air fryers with fan blades on the upper layer and a heating tube and another fan blade on the rear of the lower layer, such as the application number 202210285610.5 disclosed in the Chinese patent document, the application publication date 2022.06.17, and the invention name "A double-layer air fryer"; and some such double-layer air fryers with fan blades on the upper layer and another fan blade on the rear of the lower layer, and a heating tube in the bottom base, such as the application number 202411085930.1 disclosed in the Chinese patent document, the application publication date 2024.08.08, and the invention name "An air fryer". However, the temperature difference between the upper and lower cavities of the above-mentioned products and similar products is large, making it difficult to process and cook food requiring high temperatures at the same time. Summary of the Invention

[0003] To overcome the aforementioned shortcomings, the present invention aims to provide a dual-pot air fryer with upper and lower back-blown air, addressing the technical issues of existing dual-pot air fryers, such as the large temperature difference between the upper and lower chambers, which makes it difficult to simultaneously cook foods requiring high temperatures, resulting in poor cooking results. This objective is achieved through the following technical solutions.

[0004] The invention relates to an air fryer with upper and lower back-blowing double pots. The air fryer is divided into an upper and lower layer and corresponding upper and lower cavities. The back of the air fryer is respectively provided with fan blades, the tops of the upper and lower cavities are respectively provided with heating tubes, and one side of the upper and lower cavities is respectively provided with openings and pot bodies. The key points of its structural design are that the height of the top hardware insulation layer at the top heating tubes in the upper and lower cavities increases from the front of the body opening to the back and forms a curved surface. The top hardware insulation layer on the body opening side above the pot mouth in the upper and lower cavities is respectively provided with a brim, and the fan blades are lined with hardware. The insulation layer is integrated with the top metal insulation layer to form a metal insulation layer corresponding to the opening on one side of the body. The pot opening below the brim of the cap is respectively abutted against the top metal insulation layer. A curved gap is provided between the top metal insulation layer and the pot opening below the back. Air outlet holes are provided on the upper portion of the back inner lining metal insulation layer at the gap, and air inlet holes are provided on the lower portion of the back inner lining metal insulation layer below the air outlet holes. The air inlet holes are aligned with the honeycomb-shaped openings at the front end of the back of the pot body. The body is provided with an air outlet and an air inlet. Therefore, the upper and lower double-pot air fryer adopts a back-blowing method. Air is collected by the center of the metal centrifugal fan blades, then blown to the heating tube through the mating part of the metal insulation layer. The heated hot air is guided along the metal insulation layer to the handle position, blown downward into the pot body, and then blown from the handle end of the pot body to the front end of the pot body, passing through the honeycomb-shaped opening at the front end of the pot body, and finally returning to the center of the metal centrifugal fan blades.

[0005] The pot body has symmetrically distributed and raised guide ribs on the inner wall of the other side of the back front end. The guide ribs are integrally stamped with the pot body; or the guide ribs are provided on a guide member, which is installed on the inner wall of the pot body. This improves the hot air flow circulation effect in the pot body.

[0006] The fan blades include plastic centrifugal fan blades and metal centrifugal fan blades, which are respectively installed in the air guide covers at the back of the upper and lower cavities. The motor shaft of the motor at the back of the air guide covers is connected to the plastic centrifugal fan blades and the metal centrifugal fan blades in the upper and lower cavities respectively. The circumference of the air guide covers for the plastic centrifugal fan blades is provided with hollow holes, and the air guide covers for the metal centrifugal fan blades are connected to the inner cavity of the air guide covers for the plastic centrifugal fan blades through the through holes at the back. This dual-blade structure further improves the internal hot air diversion circulation effect and the heat dissipation effect of the body.

[0007] The air guide cover at the plastic centrifugal fan blade is a plastic air guide cover, and the air guide cover at the hardware centrifugal fan blade is a hardware air guide cover.

[0008] The power board assembly and external power cord are located on the back of the upper chamber, within the partition between the upper and lower chambers. A PCB control assembly is located at the top corner of the body, above the upper handle extending out of the upper chamber. The PCB control assembly, motor, and heating element are connected to the power board assembly via wiring. The above is a specific embodiment of the external power cord structure and is not limited to the upper chamber in the middle of the back.

[0009] The outer side of the upper handle is aligned with the outer side of the lower handle to form a vertical or oblique line.

[0010] An NTC temperature sensor is provided on the back side of the top hardware insulation layer of the heating pipes in the upper and lower cavities, and the NTC temperature sensor is connected to the power board assembly in the machine body through a circuit.

[0011] The utility model has a simple and reasonable structural design, a good diversion heating effect, and a fast food cooking process, and is particularly convenient for simultaneously cooking food requiring high temperature at the upper and lower cavities. The utility model is suitable for use as an upper and lower back-blown double-pot air fryer, and is a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic cross-sectional structural diagram of an embodiment of the present utility model.

[0013] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure of the upper pot body in the removed state.

[0014] Figure 3 yes Figure 2 Schematic diagram of the internal structure of the lower cavity.

[0015] Figure 4 yes Figure 3 Schematic diagram of a partial cross-sectional structure, in which the arrow indicates the direction of hot air in the lower pot.

[0016] Serial number and name of the accompanying drawings: 1. PCB control component, 2. Upper hardware insulation layer, 3. Upper heating tube, 4. Upper handle, 5. Upper pot body, 6. Upper grill, 7. Lower hardware insulation layer, 8. Lower heating tube, 9. Lower handle, 10. Lower pot body, 11. Lower grill, 12. Lower hardware centrifugal fan blade, 13. Lower plastic centrifugal fan blade, 14. Lower motor, 15. Power board assembly, 16. Upper motor, 17. Upper plastic centrifugal fan blade, 18. Upper hardware centrifugal fan blade, 19. NTC temperature sensor. Implementation Method

[0017] Now, in conjunction with the accompanying drawings, the structure and use of the utility model are further described. Figure 1-4As shown, the air fryer includes a PCB control component 1, an upper hardware insulation layer 2, an upper heating tube 3, an upper handle 4, an upper pot body 5, an upper grill 6, a lower hardware insulation layer 7, a lower heating tube 8, a lower handle 9, a lower pot body 10, a lower grill 11, a lower hardware centrifugal fan blade 12, a lower plastic centrifugal fan blade 13, a lower motor 14, a power board assembly 15, an upper motor 16, an upper plastic centrifugal fan blade 17, and an upper hardware centrifugal fan blade 18. The air fryer is divided into two layers, upper and lower layers, and corresponding upper and lower cavities; the back of the air fryer is respectively provided with a fan blade, the top of the upper and lower cavities are respectively provided with a heating tube, and one side of the upper and lower cavities is respectively provided with an opening and a pot body. Specifically: the height of the top hardware insulation layer at the top heating tube in the upper and lower cavities increases from the front of the body opening to the back to form a curved surface, and the top hardware insulation layer on the body opening side above the pot mouth at the pot body in the upper and lower cavities is respectively provided with a brim, and the lining hardware insulation layer at the fan blade is respectively integrated with the top hardware insulation layer to form a hardware insulation layer corresponding to the opening on one side of the body, and the pot mouth at the pot body below the brim is respectively offset against the top hardware insulation layer, and a gap of the curved surface is respectively provided between the top hardware insulation layer at the back and the pot mouth at the pot body below, and an air outlet is respectively provided on the upper part of the lining hardware insulation layer on the back at the gap, and an air inlet is respectively provided on the lower part of the lining hardware insulation layer on the back below the air outlet. The air inlets are respectively aligned with the honeycomb openings at the front end of the back of the pot body, and the body is provided with an air outlet and an air inlet. At the same time, further, the guide ribs are evenly distributed and raised on the inner wall of the other side symmetrically on the front end of the back of the pot body. The guide ribs are stamped integrally with the inner pot, or the guide ribs are arranged on the guide member, and the guide member is installed on the inner wall of the pot body.

[0018] The above-mentioned fan blades include plastic centrifugal fan blades and hardware centrifugal fan blades respectively. The plastic centrifugal fan blades and the hardware centrifugal fan blades are respectively and simultaneously arranged in the air guide covers on the back of the upper and lower cavities. The motor shaft at the motor on the back of the air guide cover is respectively and simultaneously connected to the plastic centrifugal fan blades and the hardware centrifugal fan blades in the upper and lower cavities. The circumference of the air guide cover at the plastic centrifugal fan blade is provided with hollow holes. The air guide cover at the hardware centrifugal fan blade is connected to the inner cavity of the air guide cover at the plastic centrifugal fan blade through the through hole on the back. The air guide cover at the plastic centrifugal fan blade is a plastic air guide cover, and the air guide cover at the hardware centrifugal fan blade is a hardware air guide cover. The power board assembly and the external power cord are provided on the back of the upper cavity at the partition in the upper and lower cavities. A PCB control assembly is provided at the top corner of the body above the upper handle extending out of the upper cavity. The PCB control assembly, motor, and heating tube are respectively connected to the power board assembly through lines. The outer side of the upper handle is aligned vertically or obliquely with the outer side of the lower handle below. NTC temperature sensors 19 are respectively provided on the back side of the top hardware insulation layer at the heating tubes in the upper and lower cavities, and the NTC temperature sensors are respectively connected to the power board components in the machine body through lines.

[0019] When in use, the lower pot body is taken out of the air fryer through the lower handle, or the upper pot body is taken out through the upper handle. After food is put on the lower grill in the lower pot body, the lower pot body is put back into the lower body through the lower handle, or after food is put on the upper grill in the upper pot body, the upper pot body is put back into the upper body through the upper handle; finally, press the corresponding cooking button on the control panel, and the corresponding food in the lower pot body or the upper pot body can be automatically processed and cooked.

Claims

1. A double-pot air fryer with upper and lower back-blowing, the air fryer is divided into upper and lower layers and corresponding upper and lower chambers; the back of the air fryer is respectively provided with fan blades, the tops of the upper and lower chambers are respectively provided with heating pipes, and one side of the upper and lower chambers is respectively provided with an opening and a pot body; characterized in that The height of the top hardware insulation layer at the top heating tube in the upper and lower cavities increases from the front of the body opening to the back to form a curved surface. The top hardware insulation layer on the body opening side above the pot mouth at the pot body in the upper and lower cavities is respectively provided with a brim. The lining hardware insulation layer at the fan blade is respectively integrated with the top hardware insulation layer to form a hardware insulation layer corresponding to the opening on one side of the body. The pot mouth at the pot body below the brim is respectively offset against the top hardware insulation layer. A gap of the curved surface is respectively provided between the top hardware insulation layer at the back and the pot mouth at the pot body below. The upper part of the lining hardware insulation layer on the back at the gap is respectively provided with an air outlet, and the lower part of the lining hardware insulation layer on the back below the air outlet is respectively provided with an air inlet. The air inlet holes are respectively aligned with the honeycomb openings at the front end of the back of the pot body, and the body is provided with an air outlet and an air inlet.

2. The double-pot air fryer with upper and lower back-blown air according to claim 1 is characterized in that The pot body has symmetrical inner walls on the other side of the back front end and are equidistantly distributed and raised guide ribs, which are stamped integrally with the pot body; or the guide ribs are arranged on the guide piece, which is installed on the inner wall of the pot body.

3. The double-pot air fryer with upper and lower back-blown air according to claim 1 is characterized in that The fan blades include plastic centrifugal fan blades and hardware centrifugal fan blades, which are respectively arranged in the air guide covers on the back of the upper and lower cavities. The motor shaft at the motor on the back of the air guide cover is respectively connected to the plastic centrifugal fan blades and the hardware centrifugal fan blades in the upper and lower cavities. The peripheral surface of the air guide cover at the plastic centrifugal fan blades is provided with hollow holes, and the air guide cover at the hardware centrifugal fan blades is connected to the inner cavity of the air guide cover at the plastic centrifugal fan blades through the through holes on the back.

4. The double-pot air fryer with upper and lower back-blown air according to claim 3, characterized in that The air guide cover at the plastic centrifugal fan blade is a plastic air guide cover, and the air guide cover at the hardware centrifugal fan blade is a hardware air guide cover.

5. The double-pot air fryer with upper and lower back-blown air according to claim 1, characterized in that A power board assembly (15) and an external power line are provided on the back of the upper chamber at the partition in the upper and lower chambers, and a PCB control assembly (1) is provided at the top corner of the body above the upper handle (4) extending out of the upper chamber. The PCB control assembly, the motor, and the heating tube are respectively connected to the power board assembly through lines.

6. The double-pot air fryer with upper and lower back-blown air according to claim 5, characterized in that The outer side of the upper handle (4) is aligned with the outer side of the lower handle (9) below in a vertical or oblique line.

7. The double-pot air fryer with upper and lower back-blown air according to claim 1, characterized in that NTC temperature sensors (19) are respectively provided on the back side of the top metal insulation layer at the heating tubes in the upper and lower cavities, and the NTC temperature sensors are respectively connected to the power board assembly (15) in the machine body through circuits.

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