A double-layer air fryer

Abstract

The present invention provides a double-layer air fryer, which comprises: the upper end of the shell has a ventilation gap connected to the first installation space; and the upper end of the first heating part has a first air duct between the shell; the inner pot is arranged in the first heating space, the inner pot has a cooking space, and a second air duct is arranged between the inner pot and the first heating part; wherein a first heating element is arranged in the first heating space, and an air outlet channel is arranged between the lower part of the first heating part and the shell, and the air outside the shell passes through a one-way air duct passing through the first heating element, which is composed of the ventilation gap, the first air duct, the cooking space, the second air duct, and the air outlet channel. The technical problem solved by the present invention is that when hot air is transported to the surface of food, due to the unreasonable design of the air duct structure, it is easy to cause food residues and grease to be transported to the first heating element through the air duct structure, thereby causing danger.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to a double-layer air fryer. Background Art

[0002] An air fryer is a machine that can use air to "fry". It mainly uses air to replace the hot oil in the frying pan to cook the food. At the same time, the hot air blows away the moisture on the surface of the food, making the ingredients achieve an effect similar to that of frying.

[0003] Typically, a first heating element is provided at the bottom of the air fryer, and an air duct structure passing through the first heating element is also provided in the air fryer; the first heating element is used to heat the air flowing in the air duct structure, and further, the heated air is circulated among the food to achieve the purpose of heating the food.

[0004] However, there is at least one of the following problems in the related art: when hot air is delivered to the food surface, due to the unreasonable design of the air duct structure, food residues and grease are easily delivered to the first heating element through the air duct structure, thereby causing danger. Summary of the invention

[0005] The technical problem solved by the present invention is that when hot air is transported to the food surface, due to the unreasonable design of the air duct structure, food residues and grease are easily transported to the first heating element through the air duct structure, thereby causing danger.

[0006] To solve the above problems, the present invention provides a double-layer air fryer, which includes: a shell, a first installation space is provided in the shell, and the upper end of the shell has a ventilation gap connected to the first installation space; a first heating part, the first heating part is installed in the first installation space of the shell, and a first air duct is provided between the upper end of the first heating part and the shell, and the first heating space is provided in the first heating part; an inner pot, the inner pot is arranged in the first heating space, the inner pot has a cooking space, and a second air duct is provided between the inner pot and the first heating part; wherein a first heating element is provided in the first heating space, the first heating element is arranged above the inner pot, an air outlet channel is provided between the lower part of the first heating part and the shell, and the air outside the shell passes through the one-way air duct consisting of the first air duct, the cooking space, the second air duct, and the air outlet channel and passes through the first heating element.

[0007] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: in this way, a one-way channel capable of conveying hot air is constructed, and a first heating element is arranged at the upper end of the inner pot, so that when the grease and food residues in the inner pot flow in the inner pot and the second air duct, it is difficult to flow back to the first heating element, thereby reducing the danger of the double-layer air fryer.

[0008] In one example of the present invention, a second installation space is provided at the lower side of the first installation space, and a second heating unit is installed in the second installation space; wherein the first heating unit and the second heating unit form a double-layer heating structure.

[0009] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: by setting up a second installation space, the double-layer air fryer has more functions, and the constructed double-layer heating structure enables users to have more choices when using the double-layer air fryer, thereby improving the use efficiency; at the same time, it maximizes the use of the internal space of the air fryer and reduces the waste of external space of the double-layer air fryer.

[0010] In one example of the present invention, a second heating space is provided in the second heating portion, a vortex fan is installed in the second heating space, and the vortex fan is arranged at the upper part of the second heating space; wherein a second heating element is provided on the outer peripheral side of the vortex fan, and the second heating element cooperates with the vortex fan to heat the object in the second heating space.

[0011] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by arranging a second heating element and a vortex fan in the second installation space, and arranging the second heating element on the outer peripheral side of the vortex fan, the airflow driven by the rotation of the vortex fan passes through the second heating element, and the airflow becomes hot air after passing through the second heating element. The hot air flows in the second heating space to heat the food, and the second heating element is arranged above the second heating space, so that grease and food residues in the second heating space are difficult to splash onto the second heating element.

[0012] In one example of the present invention, the double-layer air fryer further includes a first impeller disposed below the first heating portion; wherein the first impeller is used to allow air to flow from the second air duct toward the air outlet channel.

[0013] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by arranging the first impeller below the first heating part, the air in the second air duct can be sucked into the first air duct, thereby promoting the air to flow in the circulating air duct, and the first impeller and the heating element are arranged far apart, which can prevent the first impeller from throwing food residues and grease onto the heating element, further reducing the danger.

[0014] In one example of the present invention, a third installation space is provided between the first installation space and the second installation space, and a driving motor is provided in the third installation space; a first motor shaft is provided on the upper side of the driving motor, and the first motor shaft is connected to the first impeller; a second motor shaft is provided on the lower side of the driving motor, and the second motor shaft is connected to the vortex fan; wherein the driving motor can simultaneously drive the first impeller and the vortex fan to rotate.

[0015] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by using a driving motor to simultaneously drive the first impeller and the turbofan, the resources of the air fryer are maximized, and there is no need to use two systems to simultaneously drive the first impeller and the turbofan, thereby increasing the practicality of the air fryer. At the same time, since a set of driving systems is omitted, the volume of the air fryer is further reduced, and the space occupied by the air fryer is reduced.

[0016] In one example of the present invention, a second impeller is further provided on the second motor shaft, and the second impeller is located above the second heating part; wherein the second impeller is used to absorb air in the third installation space.

[0017] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by arranging the second impeller on the second motor shaft, the second impeller can be used to absorb the air in the third installation space, thereby dissipating the heat of the drive motor.

[0018] In one embodiment of the present invention, a first air outlet connected to the air outlet channel is opened on one side of the shell; and / or a third air duct is provided between the second heating part and the shell, and a second air outlet connected to the air outlet channel is opened on one side of the shell.

[0019] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by opening a first air outlet on one side of the shell and arranging the first air outlet at the lower side of the first air duct, the residue in the hot air can be discharged from the double-layer air fryer through the first air outlet, thereby further reducing the danger of the double-layer air fryer; the second air outlet can discharge the air in the third air duct from the second air outlet, thereby reducing the oil residue in the third air duct.

[0020] In one example of the present invention, when a second air outlet is provided on one side of the shell, the third air duct is connected to the third installation space, and the second air outlet is connected to the third installation space; wherein the third installation space, the third air duct and the second air outlet constitute a heat dissipation duct for dissipating heat from the drive motor.

[0021] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by connecting the third installation space with the third air duct and the second air outlet respectively, the air in the third installation space is sucked into the third air duct by the second impeller, and the overheated air in the third installation space is sucked out, and at the same time the second air outlet is connected with the third installation space, fresh cold air can be used to replace the hot air in the third installation space, forming a heat dissipation air duct that can dissipate heat for the drive motor, thereby further improving energy utilization.

[0022] In one embodiment of the present invention, an upper vent hole for connecting the first air duct with the first heating space is provided on one side of the first heating portion; and / or a ventilation member for connecting the cooking space with the second air duct is provided on one side of the inner pot, and ventilation holes are provided on the ventilation member; and / or a lower vent hole for connecting the air outlet channel with the second air duct is provided on one side of the first heating portion.

[0023] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: upper air holes and lower air holes are respectively arranged on the upper and lower sides of the first heating part, so that the air in the first air duct can enter the first heating space, and the hot air in the second air duct can flow out of the first heating space into the air outlet channel, and then be discharged from the air fryer; a ventilation piece is arranged on one side of the inner pot, and after the air in the first air duct enters the first heating space, it enters the cooking space of the inner pot in the next step; the hot air circulates in the cooking space and heats the food, and then flows into the second air duct through the ventilation piece.

[0024] In one example of the present invention, when a ventilation member is provided on one side of the inner pot, an air guide plate is provided on the side of the ventilation member away from the cooking space; wherein the air guide plate has an inclination angle relative to the inner pot to guide the air to flow sequentially along the second air duct to the air outlet channel.

[0025] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by arranging an air guide plate on one side of the ventilation member, in order to guide the air into the second air duct, the air guide plate and the inner pot are arranged at an angle to guide the flowing hot air to complete the process from the cooking space to the second air duct.

[0026] After adopting the technical solution of the present invention, the following technical effects can be achieved:

[0027] (1) By constructing a one-way channel that can transport hot air and arranging a first heating element at the upper end of the inner pot, the grease and food residues in the inner pot can only wander between the inner pot and the second air duct behind it, and it is difficult to contact the first heating element, thereby reducing the danger of the double-layer air fryer;

[0028] (2): By using a driving motor to drive the first impeller and the vortex fan at the same time, the resources of the double-layer air fryer are maximized, and there is no need to use two systems to drive the first impeller and the vortex fan at the same time, thereby increasing the practicality of the double-layer air fryer;

[0029] (3) The second impeller is used to suck the air in the third installation space into the third air duct, and the overheated air in the third installation space is sucked out. At the same time, the second air outlet is connected to the third installation space, so that fresh cold air can replace the hot air in the third installation space, forming a heat dissipation air duct that can dissipate heat for the drive motor, thereby further improving energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings to be used in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A first structural schematic diagram of a double-layer air fryer provided by an embodiment of the present invention;

[0032] Figure 2 A second structural schematic diagram of a double-layer air fryer provided by an embodiment of the present invention;

[0033] Figure 3 for Figure 2 Cross-section view in the AA direction;

[0034] Figure 4 for Figure 2 The structural diagram of the one-way air duct of the double-layer air fryer;

[0035] Figure 5 for Figure 2 Schematic diagram of the structure of the inner pot of the medium double-layer air fryer;

[0036] Figure 6 for Figure 2 Schematic diagram of the structure of the drive motor of the double-layer air fryer.

[0037] Description of reference numerals:

[0038] 1. Double-layer air fryer; 10. Shell; 11. First installation space; 12. Third installation space; 13. Second installation space; 14. First partition; 15. Second partition; 16. First air outlet; 161. Stopper; 17. Second air outlet; 18. Ventilation gap; 20. First heating part; 21. First heating space; 211. First heating element; 22. First air duct; 23. Upper vent; 24. Lower vent; 25. Air outlet channel; 30. Inner pot; 31 , cooking space; 32, second air duct; 33, ventilation member; 331, ventilation hole; 332, air guide vane; 40, driving motor; 41, first impeller; 411, first protective plate; 412, first side hole; 42, second impeller; 421, second protective plate; 422, second side hole; 50, second heating part; 51, second heating space; 511, vortex fan; 5111, first blade; 5112, second blade; 52, second heating element; 53, third air duct. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] See also Figures 1 to 6 The present invention provides a double-layer air fryer 1, which includes: a shell 10, a first heating unit 20 and an inner pot 30. The shell 10 has a first installation space 11, and the upper end of the shell 10 has a ventilation gap 18 connected to the first installation space 11. The first installation space 11 is located at the top layer of the shell 10; the first heating unit 20 is installed in the first installation space 11 of the shell 10, and a first air duct 22 is provided between the upper end of the first heating unit 20 and the shell 10. The first heating space 21 is provided in the first heating unit 20, and the first air duct 22 is connected to the upper end of the first heating space 21; the inner pot The inner pot 30 is arranged in the first heating space 21, the inner pot 30 has an upward opening, the inner pot 30 has a cooking space 31, and a second air duct 32 is arranged between the side and bottom of the inner pot 30 and the first heating part 20, and the cooking space 31 is connected with the second air duct 32 through the inner wall of the inner pot 30; wherein, a first heating element 211 is arranged on the side of the first heating part 20 away from the inner pot 30, and the first heating element 211 is arranged above the inner pot 30, and is used to heat the air passing through the first heating element 211, and then the food is heated by the hot air; an air outlet channel is arranged between the lower part of the first heating part 20 and the housing 10. The air outside the housing 10 passes through the one-way air duct formed by the ventilation gap 18, the first air duct 22, the first heating space 21, the cooking space 31, the second air duct 32 and the air outlet channel 25 in sequence, and passes through the first heating element 211, and the air can only be transported from the first air duct 22 to the first heating element 211 in one direction, so that it is difficult for food residues to be transported to the first heating element 211 through hot air.

[0041] Preferably, the first heating element 211 is in the shape of a pipe, both ends of the first heating element 211 are connected to the first heating part 20, and the tube body of the first heating element 211 is coiled above the inner pot 30. This arrangement can increase the heating area of ​​the first heating element 211, thereby improving the heating efficiency of the first heating part 20.

[0042] Furthermore, a second installation space 13 is further provided in the housing 10, and the second installation space 13 is located at the lower side of the first installation space 11, and a second heating portion 50 is provided in the second installation space 13. The second heating portion 50 and the first heating portion 20 form a double-layer heating structure; such a configuration allows users to have more choices when using the double-layer air fryer 1, and improves the use efficiency; at the same time, the internal space of the space fryer is maximized, and the waste of the external space of the double-layer air fryer 1 is reduced.

[0043] In addition, a second heating portion 50 is provided in the second installation space 13, and a second heating space 51 is provided in the second heating portion 50. Accordingly, a movable inner pot 30 can also be placed in the second heating space 51. A vortex fan 511 is provided in the second heating space 51. The vortex fan 511 is provided at the upper end of the second heating space 51. The vortex fan 511 includes a first blade 5111 arranged horizontally and a second blade 5112 arranged vertically. The second blade 5112 is used to cause a vortex when rotating to heat the food in the inner pot 30. The first blade 5111 and the second blade 5112 are vertically connected to each other, so that the strength of the vortex fan 511 is increased; wherein, a second heating element 52 is provided on the outer peripheral side of the vortex fan 511, and the second heating element 52 cooperates with the vortex fan 511. The airflow driven by the rotation of the vortex fan 511 passes through the second heating element 52, and the airflow becomes hot air after passing through the second heating element 52. The hot air flows in the second heating space 51 to heat the food.

[0044] Preferably, the double-layer air fryer 1 further comprises a first impeller 41 disposed below the first heating portion 20. The first impeller 41 is composed of a plurality of impeller blades that are recessed inwardly. When the first impeller 41 rotates, the impeller blades discharge air outwardly, thereby enabling the first impeller 41 to achieve the effect of suction. The first impeller 41 is used to make air flow from the second air duct 32 to the air outlet channel. The air flow direction in the one-way air duct is controlled by the first impeller 41. In addition, the first impeller 41 is disposed at the bottom of the first heating portion 20, and the first heating element 211 is disposed above the inner pot 30 and at the top of the first heating space 21. By distancing the first impeller 41 from the first heating element 211, it is possible to prevent the first impeller 41 from being too close to the first heating element 211, resulting in too strong wind, thereby throwing food residues and grease to the first heating element 211. The first impeller 41 and the first heating element 211 are disposed at two ends of the circulating air duct that are far apart, thereby reducing the possibility of mutual influence between the two and further reducing the danger.

[0045] Furthermore, the housing 10 further has a third installation space 12, which is located between the first installation space 11 and the third installation space 12, the first installation space 11 and the third installation space 12 are separated by a first partition 14, and the second installation space 13 and the third installation space 12 are separated by a second partition 15, and a driving motor 40 is arranged in the third installation space 12; wherein, a first motor shaft is arranged on the upper end of the driving motor 40, the first motor shaft extends upward, and is connected to the first impeller 41, and the driving motor 40 is started to drive the motor shaft to rotate, thereby rotating the first impeller 41. A small hole is arranged on the first partition 14, and the small hole is for the first motor shaft of the driving motor 40 to pass through, so that the driving motor 40 is separated from the first impeller 41, and a protective protrusion is arranged around the small hole on the side of the partition located in the first installation space 11, which can further restrict the first air duct 22 while reducing the possibility of food residues and grease in the first air duct 22 splashing onto the driving motor 40. In addition, an opening is provided on the second partition plate 15, and the second motor shaft of the driving motor 40 passes through the opening, so that the driving motor 40 is connected to the vortex fan 511 through the second motor shaft; wherein the driving motor 40 can simultaneously drive the first motor shaft and the second motor shaft to rotate, thereby rotating the first impeller 41 and the vortex fan 511. By using the driving motor 40 to simultaneously drive the first impeller 41 and the vortex fan 511, the resources of the double-layer air fryer 1 are maximized, and it is not necessary to use two systems to simultaneously drive the first impeller 41 and the vortex fan 511, thereby increasing the practicality of the double-layer air fryer 1. At the same time, since one set of driving systems is omitted, the volume of the double-layer air fryer 1 is further reduced, and the space occupied by the double-layer air fryer 1 is reduced.

[0046] Furthermore, a second impeller 42 is also provided on the second motor shaft, and the second impeller 42 is located above the second heating portion 50. The second impeller 42 is separated from the vortex fan 511 by the second heating portion 50, and the second impeller 42 is located on the side of the vortex fan 511 close to the drive motor 40. The second impeller 42 is used to drive the air in the third installation space 12 to flow into the third air duct 53. By providing the second impeller 42, the air in the third installation space 12 can be driven to flow into the third air duct 53, and the drive motor 40 is cooled, thereby reducing the possibility of the drive motor 40 causing danger due to overheating; in order to improve the efficiency of the second impeller 42 in cooling the drive motor 40, the inner diameter of the opening on the second partition 15 is larger than the outer diameter of the drive motor 40, thereby facilitating the second impeller 42 to absorb the hot air in the third installation space 12.

[0047] Furthermore, a first air outlet 16 connected to the air outlet is provided on one side of the housing 10, for absorbing external air and discharging internal air; wherein, a stopper 161 is provided at an angle, which can prevent pollutants outside the double-layer air fryer 1 from entering the double-layer air fryer 1 while ventilating. By providing an air outlet on one side of the housing 10 and arranging the air outlet at the lower side of the air outlet channel, the residue in the hot air in the first air duct 22 can be discharged from the double-layer air fryer 1 through the air outlet, further reducing the danger of the double-layer air fryer 1.

[0048] Furthermore, a third air duct 53 is provided between the second heating part 50 and the shell 10, and a second air outlet 17 connected to the third air duct 53 is also provided on one side of the shell 10 to help the second impeller 42 dissipate heat from the drive motor 40 in the second space; in addition, a sheet-shaped guide blade is provided in the first installation space 11 near the first air outlet 16, and the guide blade is arranged at the first outlet to help the first impeller 41 discharge air to the air outlet.

[0049] Preferably, the third air duct 53 is connected to the third installation space 12 at the second motor shaft, and the first impeller 41 and the second impeller 42 are used to suck the air in the third installation space 12 into the third air duct 53, and the overheated air in the third installation space 12 is sucked out; at the same time, the second air outlet 17 is connected to the third installation space 12, and fresh cold air can be used to replace the hot air in the third installation space 12; the third installation space 12, the third air duct 53 and the second air outlet 17 constitute a heat dissipation air duct for dissipating heat from the drive motor 40, constituting a heat dissipation air duct that can dissipate heat from the drive motor 40, thereby further improving energy utilization.

[0050] Preferably, the first impeller 41 is provided with a first protective plate 411 facing the first heating part 20 to protect food residues and grease in the circulating air duct from entering the third installation space 12, and a first side hole 412 is provided on the outer side of the first protective plate 411 so that the air in the third installation space 12 can be sucked into the first impeller 41; accordingly, the second impeller 42 is also provided with a second protective plate 421 facing the drive motor 40, and a second side hole 422 is provided on the outer side of the second protective plate 421 to isolate the hot air in the second installation space 13 from entering the third installation space 12.

[0051] In addition, an upper vent 23 for connecting the first air duct 22 with the first heating space 21 is provided on one side of the first heating part 20, wherein the first heating element 211 is arranged at the upper vent 23; a ventilation piece 33 for connecting the cooking space 31 with the second air duct 32 is provided on one side of the inner pot 30, preferably, there are multiple ventilation pieces 33, and they are arranged around the inner pot 30, and strip-shaped ventilation holes 331 are provided on the ventilation piece 33, and hot air enters the second air duct 32 through the ventilation holes 331; a lower vent 24 for connecting the air outlet channel with the second air duct 32 is provided on one side of the first heating part 20, and the lower vent 24 is opened at the bottom of the first heating part 20 and is arranged away from the ventilation piece 33, so as to extend the second air duct 32 and better heat the inner pot 30 as a whole.

[0052] Preferably, in the case where a ventilation member 33 is provided on one side of the inner pot 30, an air guide 332 is provided on the side of the ventilation member 33 away from the cooking space 31; wherein the air guide 332 has a certain inclination angle relative to the inner pot 30 to guide the air to flow in sequence from the second air duct 32 to the air outlet channel, and the air guide 332 is arranged outside the inner pot 30 and next to the ventilation hole 331 to guide the air flowing out of the ventilation hole 331; by arranging the air guide 332 on one side of the ventilation member 33, in order to guide the air into the second air duct 32, the air guide 332 and the inner pot 30 are inclined to guide the flowing hot air to complete the process from the cooking space 31 to the second air duct 32. Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A double-layer air fryer, characterized in that: The double-layer air fryer comprises: A shell (10), wherein the shell (10) has a first installation space (11) therein, and the upper end of the shell (10) has a ventilation gap (18) communicating with the first installation space (11); a first heating part (20), the first heating part (20) being installed in a first installation space (11) of the shell (10), and having a first air duct (22) between an upper end of the first heating part (20) and the shell (10), and having a first heating space (21) inside the first heating part (20); An inner pot (30), the inner pot (30) being arranged in the first heating space (21), the inner pot (30) having a cooking space (31), and a second air duct (32) being provided between the inner pot (30) and the first heating portion (20); A first heating element (211) is provided in the first heating space (21), the first heating element (211) is provided above the inner pot (30), an air outlet passage (25) is provided between the lower part of the first heating portion (20) and the shell (10), and air outside the shell (10) passes through a one-way air passage formed by the ventilation gap (18), the first air passage (22), the cooking space (31), the second air passage (32), and the air outlet passage (25) in sequence and passes through the first heating element (211); The double-layer air fryer further comprises a first impeller (41) disposed below the first heating portion (20); Wherein, the first impeller (41) is used to make the air flow from the second air duct (32) toward the air outlet channel; The first impeller (41) is provided with a first protective plate (411) facing the first heating part (20), and a first side hole (412) is provided on the outer side of the first protective plate (411).

2. The double-layer air fryer according to claim 1, characterized in that: A second installation space (13) is provided at the lower side of the first installation space (11), and a second heating unit (50) is installed in the second installation space (13); Wherein, the first heating part (20) and the second heating part (50) form a double-layer heating structure.

3. The double-layer air fryer according to claim 2, characterized in that: A second heating space (51) is provided in the second heating portion (50), a vortex fan (511) is installed in the second heating space (51), and the vortex fan (511) is arranged at the upper part of the second heating space (51); Wherein, a second heating element (52) is provided on the outer peripheral side of the vortex fan (511), and the second heating element (52) cooperates with the vortex fan (511) to heat the object in the second heating space (51).

4. The double-layer air fryer according to claim 3, characterized in that: A third installation space (12) is provided between the first installation space (11) and the second installation space (13), and a driving motor (40) is provided in the third installation space (12); A first motor shaft is provided on the upper side of the driving motor (40), the first motor shaft is connected to the first impeller (41), and a second motor shaft is provided on the lower side of the driving motor (40), the second motor shaft is connected to the vortex fan (511); The driving motor (40) can simultaneously drive the first impeller (41) and the vortex fan (511) to rotate.

5. The double-layer air fryer according to claim 4, characterized in that: A second impeller (42) is also provided on the second motor shaft, and the second impeller (42) is located above the second heating part (50); Wherein, the second impeller (42) is used to absorb air in the third installation space (12).

6. The double-layer air fryer according to claim 4, characterized in that: A first air outlet (16) communicating with the air outlet channel is provided on one side of the housing (10); and / or A third air duct (53) is provided between the second heating portion (50) and the shell (10), and a second air outlet (17) communicating with the air outlet channel is provided on one side of the shell (10).

7. The double-layer air fryer according to claim 6, characterized in that: When a second air outlet (17) is provided on one side of the shell (10), the third air duct (53) is in communication with the third installation space (12), and the second air outlet (17) is in communication with the third installation space (12); The third installation space (12), the third air duct (53) and the second air outlet (17) constitute a heat dissipation air duct for dissipating heat of the drive motor (40).

8. The double-layer air fryer according to claim 1, characterized in that: An upper vent hole (23) for connecting the first air duct (22) with the first heating space (21) is provided on one side of the first heating portion (20); and / or A ventilation member (33) for connecting the cooking space (31) with the second air duct (32) is provided on one side of the inner pot (30), and a ventilation hole (331) is provided on the ventilation member (33); and / or A lower vent hole (24) for connecting the air outlet channel with the second air duct (32) is provided on one side of the first heating portion (20).

9. The double-layer air fryer according to claim 8, characterized in that: When a ventilation member (33) is provided on one side of the inner pot (30), an air guide plate (332) is provided on a side of the ventilation member (33) away from the cooking space (31); The air guide plate (332) has an inclination angle relative to the inner pot (30) so as to guide the air to flow in sequence from the second air duct (32) to the air outlet channel.

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