A double-layer air fryer

Abstract

The utility model discloses a double -deck air fryer. Double -deck air fryer including main part and fry basket, the main part includes the shell, the upper inner shell subassembly of being located in the shell, upper hot -blast subassembly, lower inner shell subassembly and lower hot -blast subassembly, the upper inner shell subassembly surrounds and sets into the upper chamber, the lower inner shell subassembly surrounds and sets into the lower chamber, the upper hot -blast subassembly is used for producing hot -blast to the upper chamber, and it includes upper heating part and upper fan, the lower hot -blast subassembly is used for producing hot -blast to the lower chamber, and it includes lower heating part and lower fan, wherein, the upper inner shell subassembly with lower hot -blast subassembly is provided with cold -blast channel, and the cold -blast channel cover is located above lower fan and has the air inlet communication with the shell outside to guide the external cold -blast to the lower fan forced heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a double-layer air fryer. Background Technology

[0002] As consumers increasingly demand multifunctionality and space-efficient use of kitchen appliances, multi-chamber air fryers are gradually becoming mainstream products in the market. Traditional single-chamber air fryers can only achieve a single cooking function, while dual-chamber or multi-chamber stacked designs can independently control multiple chambers to cook different ingredients simultaneously, significantly improving equipment utilization. However, while the multi-chamber stacked structure improves functionality, it also brings technical challenges such as low heat dissipation efficiency and the susceptibility of core components to overheating. Currently, the heat dissipation structure design of existing multi-chamber air fryers is unreasonable, especially the insufficient heat dissipation design for the lower chamber fan. In existing technologies, the lower chamber fan is usually directly exposed to a high-temperature environment and lacks targeted cooling measures, making it prone to malfunctions due to overheating.

[0003] Therefore, it is necessary to propose a technical solution to overcome the shortcomings of existing technologies. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model proposes a double-layer air fryer that can improve heat dissipation performance.

[0005] This utility model is achieved through the following technical solution: a double-layer air fryer, comprising a main body and a frying basket. The main body has an upper chamber and a lower chamber stacked together. The frying basket includes an upper frying basket that can be pulled out and assembled in the upper chamber and a lower frying basket that can be pulled out and assembled in the lower chamber. The main body includes an outer shell, an upper inner shell assembly, an upper hot air assembly, a lower inner shell assembly, and a lower hot air assembly disposed within the outer shell. The upper inner shell assembly surrounds the upper chamber, and the lower inner shell assembly surrounds the lower chamber. The upper hot air assembly is used to generate hot air into the upper chamber and includes an upper heating element and an upper fan. The lower hot air assembly is used to generate hot air into the lower chamber and includes a lower heating element and a lower fan. A cold air channel is provided between the upper inner shell assembly and the lower hot air assembly. The cold air channel covers the lower fan and has an air inlet communicating with the outside of the outer shell to guide external cold air to force heat dissipation from the lower fan.

[0006] Optionally, the bottom wall of the outer casing is provided with ventilation holes, and the main body includes an upper support plate disposed between the upper inner shell assembly and the cold air channel, and a lower support plate disposed between the lower inner shell assembly and the bottom wall. The portion of the upper support plate extending beyond the upper inner shell assembly and the portion of the lower support plate extending beyond the lower inner shell assembly are provided with airflow holes that are in fluid communication with the ventilation holes.

[0007] Optionally, the upper inner shell assembly includes an upper inner shell with an upper opening and an upper cover covering the upper opening of the upper inner shell, the upper heating element is disposed inside the upper cover, and the upper fan has an upper heating fan blade located inside the upper cover and above the upper heating element.

[0008] The lower inner shell assembly includes a lower inner shell with an upper opening and a lower cover covering the upper opening of the lower inner shell. The lower heating element is disposed inside the lower cover, and the lower fan has a lower heating fan blade located inside the lower cover and above the lower heating element.

[0009] Optionally, the main body includes an upper air guide bracket covered outside the upper cover, the upper fan is mounted on the upper air guide bracket and the upper fan has an upper heat dissipation fan blade located between the upper air guide bracket and the upper cover, and the upper air guide bracket has an upper air intake corresponding to the upper heat dissipation fan blade;

[0010] The main body includes a lower air guide bracket that covers the lower housing, a lower fan that is mounted on the lower air guide bracket and has a lower heat dissipation fan blade located between the lower air guide bracket and the lower housing, and the lower air guide bracket has a lower air intake corresponding to the lower heat dissipation fan blade.

[0011] Optionally, the upper air guide bracket has an upper air guide channel, the upper heat dissipation fan blade is located in the upper air guide channel, the upper air guide channel has an upper air outlet, and the upper cover has an upper air return outlet communicating with the upper air guide channel;

[0012] The lower air guide bracket has a lower air guide channel, the lower heat dissipation fan blade is located in the lower air guide channel, the lower air guide channel has a lower air outlet, and the lower cover has a lower air return outlet that communicates with the lower air guide channel.

[0013] Optionally, the cold air duct is disposed above the lower air guide bracket, and an airflow baffle is provided between the air inlet of the cold air duct and the lower air outlet on the lower air guide bracket to prevent the airflow from the lower air outlet from flowing to the air inlet.

[0014] Optionally, the portion of the upper air guide bracket extending beyond the upper cover and the portion of the lower air guide bracket extending beyond the lower cover are respectively provided with airflow holes.

[0015] Optionally, the upper heating fan blade and the upper cooling fan blade are coaxially driven by the upper fan, and the lower heating fan blade and the lower cooling fan blade are coaxially driven by the lower fan.

[0016] Optionally, a plurality of side ventilation holes are provided on the rear wall and / or left and right side walls of the housing, and the side ventilation holes are in fluid communication with the ventilation holes through the internal space of the housing.

[0017] Optionally, the volume of the lower chamber is larger than the volume of the upper chamber, and a control circuit board is provided on the side of the upper chamber.

[0018] The double-layer air fryer provided by this utility model has a cold air channel between the upper inner shell assembly and the lower hot air assembly. The cold air channel is covered above the lower fan and has an air inlet that communicates with the outside of the shell to guide external cold air to force heat dissipation on the lower fan. By adding a cold air channel that is physically isolated from the convection heat dissipation channel, external cold air is directly blown onto the lower fan to achieve targeted cooling of components prone to high temperatures. Attached Figure Description

[0019] Figure 1 This is a three-dimensional composite diagram of the double-layer air fryer of this utility model.

[0020] Figure 2 This is a three-dimensional composite image of the double-layer air fryer from another perspective.

[0021] Figure 3 This is another perspective of the three-dimensional composite image of the double-layer air fryer of this utility model.

[0022] Figure 4 This is a three-dimensional exploded view of the double-layer air fryer of this utility model.

[0023] Figure 5 This is a three-dimensional view of the double-layer air fryer of this utility model after the outer shell has been removed.

[0024] Figure 6 This is a longitudinal sectional view of the double-layer air fryer of this utility model in the front-to-back direction.

[0025] Figure 7 This is a longitudinal sectional view of the double-layer air fryer of this utility model in the left-right direction.

[0026] Figure 8 This is a cross-sectional view of the double-layer air fryer of this utility model.

[0027] Figure 9 This is another cross-sectional view of the double-layer air fryer of this utility model.

[0028] The attached diagrams are labeled as follows: 100, Air fryer; 10, Main body; 2, Upper frying basket; 3, Lower frying basket; 1, Outer shell; 101, Side air vent; 11, Bottom wall; 110, Ventilation hole; 12, Front wall frame; 13, Control circuit board; 20, Upper chamber; 201, Upper heat dissipation channel; 21, Upper inner shell; 22, Upper cover; 220, Upper return air vent; 23, Upper air guide bracket; 230, Upper air outlet; 24, Upper fan; 241, Upper hot air fan blade; 242 1. Upper cooling fan blades; 25. Upper heating element; 26. Upper support plate; 30. Lower chamber; 301. Lower heat dissipation channel; 31. Lower inner shell; 32. Lower cover; 320. Lower return air vent; 33. Lower air guide bracket; 330. Lower air outlet; 331. Airflow baffle; 34. Lower fan; 341. Lower heating fan blades; 342. Lower cooling fan blades; 35. Lower heating element; 36. Lower support plate; 4. Cold air channel; 401. Air inlet; 8. Airflow hole. Detailed Implementation

[0029] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] The double-layer air fryer provided in this embodiment adopts a double-chamber vertical stacked structure and achieves efficient and reliable heat dissipation through an innovatively designed heat dissipation system, ensuring long-term stable operation of the equipment.

[0032] Please see Figures 1 to 9 As shown, this utility model discloses a double-layer air fryer 100, including a main body 10 and a frying basket. The main body 10 has an upper chamber 20 and a lower chamber 30 stacked together. The frying basket includes an upper frying basket 2 that can be pulled out and assembled in the upper chamber 20 and a lower frying basket 3 that can be pulled out and assembled in the lower chamber 30.

[0033] The main body 10 includes an outer shell 1, an upper inner shell assembly, a lower inner shell assembly, an upper hot air assembly, and a lower hot air assembly. The upper inner shell assembly forms the upper chamber 20, and the lower inner shell assembly forms the lower chamber 30. The upper hot air assembly generates hot air into the upper chamber 20 and includes an upper heating element 25 and an upper fan 24. The lower hot air assembly generates hot air into the lower chamber 30 and includes a lower heating element 35 and a lower fan 34. A cold air channel is provided between the upper inner shell assembly 21 and the lower hot air assembly. The cold air channel covers the lower fan 34 and has an air inlet 401 communicating with the outside of the outer shell 1 to guide external cold air to force heat dissipation from the lower fan 34.

[0034] The double-layer air fryer 100 provided by this utility model has a cold air channel between the upper inner shell 21 assembly and the lower hot air assembly. The cold air channel is covered above the lower fan 34 and has an air inlet 401 that communicates with the outside of the outer shell 1 to guide external cold air to force heat dissipation on the lower fan 34. By adding a cold air channel that is physically isolated from the convection heat dissipation channel, the external cold air blows directly on the lower fan 34 to achieve targeted cooling of components prone to high temperature.

[0035] Please see Figures 1 to 3 As shown, in this embodiment, the air fryer 100 has a vertical tower-shaped structure. The outer shell 1 is the outer part of the main body 10. A front wall frame 12 is formed at the front of the shell 1. Two sets of pull-out openings are arranged side by side along the vertical direction on the front wall frame 12, corresponding to the opening positions of the upper chamber 20 and the lower chamber 30, respectively. The upper frying basket 2 is horizontally pulled into the upper chamber 20 through the opening at the upper part of the front wall frame 12, and the lower frying basket 3 is horizontally pulled into the lower chamber 30 through the opening at the lower part of the front wall frame 12. Multiple side vents 101 are provided on the rear wall of the shell 1. These side vents 101 are connected to the convection heat dissipation channel described later, forming a complete heat dissipation circulation path. In some other embodiments, the side vents 101 may also be provided on the left and right side walls of the shell 1.

[0036] Please see Figures 4 to 7As shown, the interior of the outer shell 1 is divided into two independent cooking chambers by an upper inner shell assembly and a lower inner shell assembly. The upper inner shell assembly includes an upper inner shell 21 with an upper opening and an upper cover 22 covering the upper opening of the upper inner shell 21. That is, the upper inner shell assembly consists of an upper inner shell 21 with an upper opening and an upper cover 22 covering its opening, which together enclose the upper chamber 20. There is a gap between the outer wall of the upper inner shell 21 and the inner wall of the outer shell 1, forming an upper heat dissipation channel 201. The lower inner shell assembly includes a lower inner shell 31 with an upper opening and a lower cover 32 covering the upper opening of the lower inner shell 31. That is, the lower inner shell assembly consists of a lower inner shell 31 with an upper opening and a lower cover 32 covering its opening, which together enclose the lower chamber 30. There is also a gap between the outer wall of the lower inner shell 31 and the inner wall of the outer shell 1, forming a lower heat dissipation channel 301. The widths of the upper heat dissipation channel 201 and the lower heat dissipation channel 301 are not required to be the same at all points. In particular, in this embodiment, the volume of the lower chamber 30 is larger than the volume of the upper chamber 20, and the lower heat dissipation channel 301 is narrower than the upper heat dissipation channel 201.

[0037] In this embodiment, the bottom wall 11 of the outer casing 1 has an array of ventilation holes 110, which form the bottom air inlet of the convection heat dissipation channel. After entering through the ventilation holes 110, cold air first flows upward along the lower heat dissipation channel 301 to dissipate heat radiated from the lower inner casing assembly into the outer casing 1. Then, it enters the upper heat dissipation channel 201 to dissipate heat radiated from the upper inner casing assembly into the outer casing 1. Finally, it is discharged through the side air vents 101 on the outer casing 1, forming a complete natural convection circulation, effectively avoiding the risk of overheating and deformation of the outer casing 1. The airflow direction of the natural convection circulation is as follows: Figure 7 As indicated by the middle arrow.

[0038] Specifically, in this embodiment, the main body 10 includes an upper support plate 26 disposed between the upper inner shell assembly and the cold air channel 4, and the portion of the upper support plate 26 extending beyond the upper inner shell assembly has an airflow hole 8. Similarly, the main body 10 includes a lower support plate 36 disposed between the lower inner shell assembly and the bottom wall 11, and the portion of the lower support plate 36 extending beyond the lower inner shell assembly has an airflow hole 8. Further, the main body 10 also includes an upper air guide bracket 23 covering the upper cover 22, and the portion of the upper air guide bracket 23 extending beyond the upper cover 22 has an airflow hole 8. Similarly, the main body 10 includes a lower air guide bracket 33 covering the lower cover 32, and the portion of the lower air guide bracket 33 extending beyond the lower cover 32 has an airflow hole 8. In this way, the ventilation holes 110 on the bottom wall 11, the airflow holes 8 on each component, and the side air vents 101 connect the space between the outer casing 1 and the upper and lower chambers with the outside, forming a natural convection circulation path. Furthermore, it should be noted that in some embodiments, a cooling fan can be further installed within this convection heat dissipation channel to enhance the top-down convection heat dissipation.

[0039] In this embodiment, the volume of the lower chamber 30 is larger than that of the upper chamber 20. A control circuit board 13 is disposed on the side of the upper chamber 20 and is located within a convection heat dissipation channel, where it is cooled by airflow. In this embodiment, this asymmetrical design with a larger lower chamber 30 and a smaller upper chamber 20 conforms to the usage habit of the lower chamber 30 typically holding larger volumes of food, and also makes the air fryer 100 more stable.

[0040] Please continue reading. Figures 4 to 8 As shown, in this embodiment, the upper heating element 25 is disposed inside the upper cover 22, and the upper heating element 25 is a heating tube. The upper fan 24 is mounted on the upper air guide bracket 23. The upper fan 24 has an upper hot air fan blade 241 located inside the upper cover 22 and above the upper heating element 25, and an upper heat dissipation fan blade 242 located between the upper air guide bracket 23 and the upper cover 22. The upper air guide bracket 23 has an upper air intake corresponding to the upper heat dissipation fan blade 242. The upper air guide bracket 23 has an upper air guide channel. The upper heat dissipation fan blade 242 is located inside the upper air guide channel. The upper air guide channel has an upper air outlet 230. The upper cover 22 has an upper return air outlet 220 communicating with the upper air guide channel. The upper hot air fan blade 241 is used to blow air onto the upper heating element 25 to drive hot air to flow in the upper chamber 20, thereby heating and cooking the food. The upper cooling fan blades 242 are used to dissipate heat from the motor of the upper fan 24, preventing the motor from overheating. In this embodiment, the upper cooling fan blades 241 and 242 are coaxially driven by the upper fan 24, which simplifies the structure and improves transmission efficiency.

[0041] Similarly, please see Figures 4 to 7 and Figure 9 As shown, the lower heating element 35 is disposed within the lower housing 32, and the upper heating element 25 is a heating tube. The lower fan 34 is mounted on the lower air guide bracket 33. The lower fan 34 has a lower hot air fan blade 341 located within the lower housing 32 and above the lower heating element 35, and a lower heat dissipation fan blade 342 located between the lower air guide bracket 33 and the lower housing 32. The lower air guide bracket 33 has a lower air intake corresponding to the lower heat dissipation fan blade 342. The lower air guide bracket 33 has a lower air guide channel, and the lower heat dissipation fan blade 342 is located within the lower air guide channel. The lower air guide channel has a lower air outlet 330, and the lower housing 32 has a lower return air outlet 320 communicating with the lower air guide channel. The lower hot air fan blade 341 is used to blow air downwards to the lower heating element 35, thereby causing hot air to flow within the lower chamber 30 to heat and cook food. The lower cooling fan blades 342 are used to dissipate heat from the motor of the lower fan 34, preventing the motor from overheating. In this embodiment, the lower cooling fan blades 341 and 342 are coaxially driven by the lower fan 34.

[0042] Because the lower fan 34 is located roughly in the middle of the air fryer 100, with an upper chamber 20 above it and a lower chamber 30 below it, it is subjected to heating from both directions, making heat dissipation difficult. To solve the heat dissipation problem of the lower fan 34, this embodiment innovatively sets up an independent cold air channel 4. For example... Figure 9 As shown, in this embodiment, the cold air channel 4 is disposed above the lower air guide bracket 33 and is fixed to the lower air guide bracket 33 by screws. An air inlet 401 is provided at the front end of the cold air channel 4 to guide external cold air precisely into the air duct. The cold air channel 4 is completely isolated from the convection cooling channel. The air inlet 401 of the cold air channel 4 draws in ambient air, which is then blown onto the motor body of the lower fan 34 by the lower cooling fan blades 342, forcing convection cooling of the motor of the lower fan 34. In this embodiment, an airflow baffle 331 is provided between the air inlet 401 of the cold air channel 4 and the lower air outlet 330 on the lower air guide bracket 33 to prevent airflow from the lower air outlet 330 from flowing back to the air inlet 401. The airflow baffle 331 between the lower air outlet 330 of the lower air guide bracket 33 and the air inlet 401 of the cold air channel 4 effectively prevents the hot air discharged from the lower chamber 30 from flowing back, thus preventing hot air from entering the cold air channel 4.

[0043] The air fryer 100 provided by this utility model operates as follows: The upper and lower hot air components work independently. The upper heating element 25 generates heat, and the upper fan 24 blows hot air into the upper chamber 20 through the upper hot air fan blades 241 to heat the food. Simultaneously, the upper cooling fan blades 242 exhaust heat from the upper cover 22 through the air guide channel of the upper air guide bracket 23 from the upper air outlet 230. The lower heating element 35 generates heat, and the lower fan 34 blows hot air into the lower chamber 30 through the lower hot air fan blades 341. The lower cooling fan blades 342 exhaust heat from the lower cover 32 through the air guide channel of the lower air guide bracket 33 from the lower air outlet 330. The airflow direction is as follows: Figure 6 As shown by the middle arrow. The heat radiated by the upper chamber 20 and lower chamber 30 during operation causes the temperature inside the upper heat dissipation channel 201 and lower heat dissipation channel 301 to rise. To counter this, external cold air enters through the ventilation hole 110 on the bottom wall 11 of the outer casing 1, flows through the airflow hole 8, and sequentially passes through the lower heat dissipation channel 301 and upper heat dissipation channel 201, forming an upward convection heat dissipation channel. This dissipates the heat through the side air vent 101, and the airflow direction is as follows: Figure 7 As indicated by the middle arrow. Simultaneously, external cold air also enters through the air inlet 401 of the cold air duct 4, directly forcibly cooling the lower fan 34. This dual cooling mechanism ensures the efficient and stable operation of the equipment.

[0044] As can be seen from the above description of the specific embodiments, the double-layer air fryer 100 provided by this utility model has ventilation holes 110 on the bottom wall 11 of the outer shell 1 connected in sequence with the lower heat dissipation channel 301 between the lower inner shell assembly and the outer shell 1 and the upper heat dissipation channel 201 between the upper inner shell assembly and the outer shell 1, forming a convection heat dissipation channel. This allows the interior of the outer shell 1 to form a large, interconnected heat dissipation cycle, preventing heat radiated from the chamber to the interior of the outer shell 1 from being difficult to dissipate due to poor convection or the appearance of heat dissipation blind spots. At the same time, a cold air channel 4 is provided, which is separated from the convection heat dissipation channel. The cold air channel 4 is covered above the lower fan 34 and has an air inlet 401 connected to the outside of the outer shell 1, so as to guide the external cold air to force heat dissipation on the lower fan 34. By adding a cold air channel 4 that is physically isolated from the convection heat dissipation channel, the external cold air blows directly on the lower fan 34, achieving targeted and directional cooling of components prone to high temperatures.

[0045] This utility model has been described through several specific embodiments. Those skilled in the art should understand that various modifications and equivalent substitutions can be made to this utility model without departing from its scope. Furthermore, various modifications can be made to this utility model for specific situations or circumstances without departing from its scope. Therefore, this utility model is not limited to the specific embodiments disclosed, but should include all embodiments falling within the scope of the claims of this utility model.

Claims

1. A double-layer air fryer, comprising a main body and a frying basket, the main body having an upper chamber and a lower chamber stacked together, the frying basket comprising an upper frying basket removably assembled in the upper chamber and a lower frying basket removably assembled in the lower chamber, characterized in that, The main body includes an outer shell, an upper inner shell assembly, an upper hot air assembly, a lower inner shell assembly, and a lower hot air assembly disposed within the outer shell. The upper inner shell assembly forms the upper chamber, and the lower inner shell assembly forms the lower chamber. The upper hot air assembly is used to generate hot air into the upper chamber and includes an upper heating element and an upper fan. The lower hot air assembly is used to generate hot air into the lower chamber and includes a lower heating element and a lower fan. A cold air channel is provided between the upper inner shell assembly and the lower hot air assembly. The cold air channel covers the lower fan and has an air inlet communicating with the outside of the outer shell to guide external cold air to force heat dissipation from the lower fan.

2. The double-layer air fryer as described in claim 1, characterized in that, The bottom wall of the outer shell is provided with ventilation holes. The main body includes an upper support plate disposed between the upper inner shell assembly and the cold air channel, and a lower support plate disposed between the lower inner shell assembly and the bottom wall. The portion of the upper support plate extending beyond the upper inner shell assembly and the portion of the lower support plate extending beyond the lower inner shell assembly are provided with airflow holes that are in fluid communication with the ventilation holes.

3. The double-layer air fryer as described in claim 1, characterized in that, The upper inner shell assembly includes an upper inner shell with an upper opening and an upper cover covering the upper opening of the upper inner shell. The upper heating element is disposed inside the upper cover, and the upper fan has an upper hot air fan blade located inside the upper cover and above the upper heating element. The lower inner shell assembly includes a lower inner shell with an upper opening and a lower cover covering the upper opening of the lower inner shell. The lower heating element is disposed inside the lower cover, and the lower fan has a lower heating fan blade located inside the lower cover and above the lower heating element.

4. The double-layer air fryer as described in claim 3, characterized in that, The main body includes an upper air guide bracket covered outside the upper cover, an upper fan mounted on the upper air guide bracket and the upper fan having an upper heat dissipation fan blade located between the upper air guide bracket and the upper cover, and the upper air guide bracket having an upper air intake corresponding to the upper heat dissipation fan blade. The main body includes a lower air guide bracket that covers the lower housing, a lower fan that is mounted on the lower air guide bracket and has a lower heat dissipation fan blade located between the lower air guide bracket and the lower housing, and the lower air guide bracket has a lower air intake corresponding to the lower heat dissipation fan blade.

5. The double-layer air fryer as described in claim 4, characterized in that, The upper air guide bracket has an upper air guide channel, the upper heat dissipation fan blade is located in the upper air guide channel, the upper air guide channel has an upper air outlet, and the upper cover has an upper air return outlet that communicates with the upper air guide channel. The lower air guide bracket has a lower air guide channel, the lower heat dissipation fan blade is located in the lower air guide channel, the lower air guide channel has a lower air outlet, and the lower cover has a lower air return outlet that communicates with the lower air guide channel.

6. The double-layer air fryer as described in claim 5, characterized in that, The cold air duct is located above the lower air guide bracket, and an airflow baffle is provided between the air inlet of the cold air duct and the lower air outlet on the lower air guide bracket to prevent the airflow from the lower air outlet from flowing to the air inlet.

7. The double-layer air fryer as described in claim 4, characterized in that, The portion of the upper air guide bracket extending beyond the upper cover and the portion of the lower air guide bracket extending beyond the lower cover are respectively provided with airflow holes.

8. The double-layer air fryer as described in claim 4, characterized in that, The upper hot air fan blade and the upper cooling fan blade are coaxially driven by the upper fan, and the lower hot air fan blade and the lower cooling fan blade are coaxially driven by the lower fan.

9. The double-layer air fryer as described in claim 2, characterized in that, The rear wall and / or left and right side walls of the outer casing are provided with a plurality of side ventilation holes, which are in fluid communication with the ventilation holes through the internal space of the outer casing.

10. The double-layer air fryer as described in any one of claims 1 to 8, characterized in that, The volume of the lower chamber is larger than that of the upper chamber, and a control circuit board is provided on the side of the upper chamber.

Images