CN115500707A

CN115500707A - Air fryer

Info

Publication number: CN115500707A
Application number: CN202211218007.1A
Authority: CN
Inventors: 陈海鹏; 吕华
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-12-23

Abstract

The invention provides an air fryer, which comprises a fryer body assembly and a machine head assembly, wherein the fryer body assembly comprises an inner fryer and an outer fryer, the outer fryer is provided with an inner cavity, the inner fryer is rotatably arranged in the inner cavity, and the inner fryer comprises an inner fryer body and a choke sheet arranged on the inner fryer body; head assembly set up in pot body subassembly top, head assembly includes fan and driving motor down, the fan is located down head assembly's lower part for blow gas to interior pot, driving motor's output shaft in fan down, driving motor is used for the drive down the fan is rotatory, the choke piece is in the fan blows down can drive under the effect of air current interior pot winds pot body assembly's the central axis is rotatory to the material thermally equivalent is eaten in the messenger's culinary art.

Description

Air fryer

Technical Field

The utility model belongs to the cooking utensil field especially relates to an air fryer.

Background

With the increasing living standard and the increasing demand for food, various kitchen cooking appliances, such as air fryer, have come into play.

Air fryers are devices that cook food by heating air and using a centrifugal lower fan to deliver heated air to a location where it contacts the food to heat the food.

However, in the existing air fryer, food in some positions often turns brown due to contact with heat, and food in other positions is in a half-cooked state due to contact with less heat, so that the food is heated unevenly, and the use experience of a user is influenced.

Disclosure of Invention

The main object of the present disclosure is to provide an air fryer to improve the heating uniformity of the cooking food material.

In view of the above purpose, the present disclosure provides the following technical solutions:

in one aspect of the present disclosure, an air fryer is provided, which includes a body assembly and a head assembly, wherein the body assembly includes an inner pot and an outer pot, the outer pot is provided with an inner cavity, the inner pot is rotatably disposed in the inner cavity, and the inner pot includes an inner pot body and a choke sheet disposed on the inner pot body; head assembly set up in pot body subassembly top, head assembly includes fan and driving motor down, the fan is located down head assembly's lower part for blow gas to interior pot, driving motor's output shaft in fan down, driving motor is used for the drive down the fan is rotatory, the choke piece is in the fan blows under the effect of air current down can drive interior pot winds pot body assembly's the central axis is rotatory.

This is disclosed through set up the choke piece in on the pot, under the effect that the fan blows the air current down, the pot is rotatory around pot body assembly's the central axis in this choke piece can drive to the material thermally equivalent is eaten in the messenger culinary art, need not additionally to set up the power supply with the help of being used for driving down the driving motor of fan as interior pot pivoted power supply promptly, has simplified the structure that the air was fried the pot, has reduced the manufacturing cost that the air fried the pot.

The utility model discloses an exemplary embodiment, interior pot body include interior pot diapire and with the interior pot lateral wall that interior pot diapire is connected, choke piece is including setting up lateral wall choke piece on the outer surface of interior pot lateral wall, interior pot lateral wall is last to be followed the circumference of interior pot body is provided with a plurality of lateral wall ventilation holes, lateral wall choke piece sets up lateral wall ventilation hole edge interior pot body circumference one side, lateral wall choke piece is followed the lateral wall of interior pot body is outstanding to be extended to lateral wall ventilation hole edge the radial outside of interior pot body. So, through setting up lateral wall choke piece, under the drive action of fan down, gas can obtain drive power with the contact of lateral wall choke piece to pot is rotatory around self axis in can driving with the help of lower fan, with the homogeneity of being heated of improvement culinary art food.

Furthermore, the side wall choke piece is arranged on the outer side wall of the inner pot, so that hot air in a gap between the inner pot and the outer pot can be guided to the center of the inner pot, more hot air is used for cooking, and the energy utilization rate of the hot air is improved.

Optionally, the lateral wall ventilation hole is followed the direction of height slope of interior pot extends, just the extending direction in lateral wall ventilation hole with contained angle alpha between the axis of interior pot satisfies 0 ≦ alpha ≦ 45, the incline direction in lateral wall ventilation hole with the direction of rotation of fan is the same down, so set up and make lateral wall choke piece intercept hot-blast and guide to the center department of interior pot more effectively, improved the effective choke area of lateral wall choke piece.

Further, the extending direction of the side wall choke sheet is approximately parallel to the extending direction of the side wall vent hole.

In another exemplary embodiment of the present disclosure, the side wall wind blocking plate includes a first plate and a second plate, the first plate protrudes from the outer side surface of the inner pan side wall of the inner pan body, and the second plate bends and extends from the radial outer edge of the first plate, so that the second plate and the inner pan side wall are arranged at an interval and parallel to the tangent line of the inner pan body.

Optionally, the lowest point of the lower fan is located above the top end edge of the inner pan body, and the axial distance between the lowest point of the lower fan and the top end edge of the inner pan is greater than the axial distance between the lowest point of the lower fan and the top end edge of the outer pan. So set up, the gap between pot and the outer pot in can entering into as much as possible through fan drive's steam down to contact with lateral wall choke piece, thereby further improve hot-blast energy utilization.

Specifically, the distance Lr between the outer wall of the inner pot body and the inner wall of the outer pot meets the requirement that Lr is more than or equal to 5mm and less than or equal to 15mm.

Further, the first sheet and the second sheet are arranged substantially vertically; and/or the radial inner cambered surface at the joint of the first blade body and the second blade body is in transition; and/or, the second lamellar body with the lateral wall of interior pot body is following the radial distance of interior pot is L, the diameter of interior pot body is D, satisfies 0.02 and is less than or equal to L/D and is less than or equal to 0.075.

In another exemplary embodiment of the present disclosure, the choke sheet includes a side wall choke sheet extending from an inner wall of the inner pot body toward the inner cavity of the inner pot body.

Optionally, an included angle γ between the extending direction of the side wall wind-blocking sheet and the axis of the inner pot is more than or equal to 0 ° and less than or equal to 45 °.

Specifically, the inner pot further comprises a flow returning plate, and the flow returning plate is fixed to the top end of the side wall choke piece and extends upwards towards the lower fan in an inclined mode.

Furthermore, the connecting part of the backflow plate and the side wall choke sheet is in arc surface transition.

In another exemplary embodiment of the present disclosure, the sidewall choke flap is substantially perpendicular to the sidewall of the inner pot body; and/or the radial inner cambered surface at the joint of the side wall choke piece and the side wall of the inner pot body is in transition.

Specifically, the lowest point of the lower fan is positioned below the top end edge of the inner pot body.

Further, the choke piece includes diapire choke piece, the diapire of interior pot body is provided with the edge a plurality of diapire ventilation holes that the circumference interval of interior pot body set up, diapire choke piece sets up in the axial below in diapire ventilation hole, diapire choke piece is followed the diapire orientation of interior pot body the axial outside in diapire ventilation hole extends. In this way, the bottom wall choke flap can be used to contact with the hot air to obtain a driving force to drive the inner pot to rotate around its axis.

Optionally, the lowest point of the lower fan is located above the top end edge of the inner pan body, the axial distance between the lowest point of the lower fan and the top end edge of the inner pan is greater than the axial distance between the lowest point of the lower fan and the top end edge of the outer pan, and the bottom wall vent hole spirally extends from the middle part of the inner pan body to the edge.

In another exemplary embodiment of the present disclosure, the bottom wall choke flap includes a guide edge substantially parallel to a bottom wall of the inner pot body below and a connecting edge connected between the guide edge and the bottom wall of the inner pot body.

Optionally, the junction of the guide edge and the connecting edge is in arc transition; and/or the guide edge and the connecting edge are arranged approximately vertically; and/or, the connection limit set up in the diapire ventilation hole is followed one side of interior pot circumference, just the connection limit perpendicular to the diapire setting of interior pot body.

Specifically, the choke piece includes diapire choke piece, the diapire of interior pot body is provided with along a plurality of diapire choke pieces that the circumference interval of interior pot body set up, diapire choke piece is followed the diapire orientation of interior pot body the axial inboard extension of interior pot body.

Furthermore, the connecting part of the bottom wall choke piece and the bottom wall of the inner pot body is in arc surface transition; and/or the bottom wall choke sheet and the bottom wall of the inner pot body are approximately vertically arranged.

In another exemplary embodiment of the present disclosure, the air fryer further includes a bearing assembly supported between the inner pot and the outer pot, the bearing assembly including a bearing and a connecting shaft, a first end of the connecting shaft being fixed to the bearing inner ring, one of the inner pot and the outer pot being fixed to the bearing outer ring, the other being detachably connected to a second end of the connecting shaft, so that the inner pot is detachably supported in the outer pot. So, through set up bearing assembly between interior pot and outer pot, including the pot rotates the in-process, reduced the contact friction between interior pot and the outer pot, make interior pot changeing.

Optionally, the cross-section of the second end of the connecting shaft is non-circular.

Specifically, the cross section of the second end of the connecting shaft is in multiple positive deformations, a sinking groove used for being matched with the second end of the connecting shaft is arranged on the inner pot or the outer pot, the diameter of a circumscribed circle of the sinking groove is D1, the diameter of a circumscribed circle of the second end of the connecting shaft is D2, and the requirements that the diameter of D1-D2 is more than or equal to 0.2mm and less than or equal to 1mm are met; or the cross section of the second end of the connecting shaft is semicircular, the sinking groove is cylindrical, the diameter of the sinking groove is D1, the diameter of the second end of the connecting shaft is D2, and the requirement that D1-D2 is more than or equal to 0.2mm and less than or equal to 1mm is met.

Further, the heavy groove is followed the inside sunken formation of diapire of interior pot, connecting axle second end clearance fit support in the heavy groove, the cross section of the first end of connecting axle is the cylinder, the cross section diameter of the first end of connecting axle is D3, satisfies D3 < D2.

According to another exemplary embodiment of the disclosure, the depth of the sinking groove is H1, the second end of the connecting shaft is provided with a connecting section, the axial height of the connecting section is H2, H2 is more than or equal to 5mm and less than or equal to 10mm, and H1 is more than H2.

Optionally, the outer pot bottom wall is provided with a boss protruding upwards along the axial direction, the top end of the boss is spherical, and the inner pot is rotatably supported on the spherical surface. So through set up the boss between interior pot and outer pot, reduced the area of contact between interior pot and the outer pot, including the rotatory in-process of pot, reduce the frictional resistance of interior pot to the pot is changeed in making.

Specifically, the bottom surface of the inner pot is concavely provided with a sinking groove matched with the boss, the diameter of the sinking groove is D1, the diameter of the spherical surface is D2, and the requirements that D1-D2 are more than or equal to 0.2mm and less than or equal to 1mm are met.

Further, the air fryer still includes 3 at least button head archs, the diapire of interior pot with one in the diapire of outer pot sunken be provided with the annular groove that the button head arch matches, the annular groove is followed the diapire of interior pot or the continuous extension of diapire circumference of outer pot, 3 at least button head archs set up on another, just 3 at least button head archs are in roll in the annular groove, make the diapire of interior pot with the diapire interval of outer pot sets up.

The utility model discloses another exemplary embodiment, the air fryer still includes magnetism and inhales the subassembly, supports in the pot with between the outer pot, magnetism inhales the subassembly including set up in the interior pot magnetism of interior pot is inhaled with set up in the outer pot magnetism of outer pot is inhaled, outer pot magnetism inhale with interior pot magnetism cooperation make interior pot suspension set up in the outer pot. So, through set up magnetism between interior pot and outer pot and inhale the subassembly, make interior pot unsettled set up in outer pot, including the rotatory in-process of pot avoid with outer pot contact friction to the pot is changeed rotatoryly in making.

Specifically, subassembly is inhaled to magnetism includes inner ring magnetism, inner ring magnetism inhale the subassembly including set up in inner pot inner ring spare of interior pot diapire central point position with set up in outer pot inner ring spare on the outer pot diapire, inner pot inner ring spare with outer pot inner ring spare is counterpointed and is set up, the magnetism of inner pot inner ring spare with the magnetism of outer pot inner ring spare is the same.

Further, subassembly is inhaled including outer ring magnetism to subassembly is inhaled to magnetism, outer ring magnetism inhale subassembly include a plurality of interior outer rings of pot and with a plurality of outer rings of pot that interior outer rings of pot matches, interior outer rings of pot set up in on the interior pot, it is a plurality of interior outer rings of pot are followed the radial setting in pairs of interior pot, outer rings of pot set up in on the outer pot, the magnetism of interior outer rings of pot with the magnetism of outer rings of pot is the same.

Optionally, the inner pan outer ring is disposed at a junction of the bottom wall and the side wall of the inner pan.

Furthermore, the supporting forces of the inner pot outer ring pieces arranged in pairs on the inner pot are equal in size and opposite in direction in the radial direction; and/or the components of the supporting force of the inner pot outer ring pieces arranged in pairs to the inner pot in the axial direction are the same.

In another exemplary embodiment of the present disclosure, the magnetic attraction component provides an upward pushing force to the inner pot, and the upward pushing force is not less than a sum of a gravity of the inner pot and a gravity of food to be cooked, so that the inner pot and the outer pot are arranged at an interval.

Drawings

The above and/or other objects and advantages of the present disclosure will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a longitudinal cross-sectional view of an air fryer provided in accordance with a first exemplary embodiment of the present disclosure.

Fig. 2 is a longitudinal sectional view illustrating a state in which the lower fan, the inner pot, and the outer pot of fig. 1 are coupled.

Fig. 3 is a partially enlarged view of the structure indicated by the circle M in fig. 2.

Fig. 4 shows a schematic view of the flow of hot air along the outer wall of the inner pot.

Fig. 5 is an exploded view of the lower fan, the inner pot, and the outer pot of fig. 2.

Fig. 6 is a longitudinal sectional view showing a state in which the inner pot and the outer pot of fig. 2 are coupled.

Fig. 7 is a first perspective view of the inner pot in fig. 2.

Fig. 8 is a longitudinal sectional view of the inner pot of fig. 7.

Fig. 9 is a cross-sectional view of the inner pot of fig. 7.

Fig. 10 is a partially enlarged view of a structure indicated by a J-turn in fig. 9.

FIG. 11 is a schematic view of the gas flow of FIG. 9 with the side wall choke plate acting.

FIG. 12 is a longitudinal cross-sectional view of an air fryer provided in accordance with a second exemplary embodiment of the present disclosure.

FIG. 13 is a transverse cross-sectional view of the air fryer of FIG. 12.

Fig. 14 is a partially enlarged view of a structure indicated by a circle K in fig. 13.

Fig. 15 is a partially enlarged view of the structure indicated by the circle I in fig. 6.

FIG. 16 is a longitudinal cross-sectional view of an air fryer provided in accordance with a third exemplary embodiment of the present disclosure.

Fig. 17 is a partially enlarged view of the structure indicated by the N-turn in fig. 16.

FIG. 18 is a longitudinal cross-sectional view of an air fryer provided in accordance with a fourth exemplary embodiment of the present disclosure.

FIG. 19 is a longitudinal sectional view of the combination of the outer pot, the inner pot and the magnetic assembly in FIG. 18.

FIG. 20 is a distribution view of the magnetic assembly of FIG. 18.

Fig. 21 is a force-bearing state diagram of a pair of outer ring magnetic attraction components arranged oppositely.

Description of reference numerals:

1. a pan body assembly; 2. A head assembly;

11. an inner pot; 12. An outer pot;

13. a bearing assembly; 15. A magnetic component;

151. an inner ring magnetic attraction component; 1511. An inner ring piece in the inner pot;

1512. an outer ring in the outer pot; 152. An outer ring magnetic attraction component;

1521. an inner pot outer ring piece; 1522. An outer ring piece of the outer pot;

121. a boss; 21. A drive motor;

22. a lower fan; 24. A heating body;

25. a wind scooper; 26. A cover body;

110. an inner pot body; 111. A sidewall vent;

112. a sidewall choke sheet; 113. A bottom wall vent;

114. a bottom wall choke flap; 115. Sinking a groove;

116. a backflow plate; 117. An oil leak hole;

131. a bearing; 132. A connecting shaft;

210. an output shaft; 1121. A first sheet body;

1122. a second sheet body; 1141. A guide edge;

1142. and connecting the edges.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the embodiments of the present disclosure are limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

Referring to FIG. 1, the present disclosure provides an air fryer comprising a pot assembly 1 and a head assembly 2.

Head assembly 2 may be pivotally attached to one side of pan assembly 1 to form the air fryer as a clamshell air fryer, but is not so limited.

Head assembly 2 includes a cover 26, a heating body 24, a lower fan 22, and a drive motor 21.

The lid 26 can be closed over the top edge of the outer pot 12 (see below) to cooperate with the outer pot 12 to form the internal cavity as a cooking cavity. To facilitate viewing of the cooking conditions within the pan assembly 1, the cover 26 may be a transparent structure, such as, but not limited to, the cover 26 being a glass cover. Optionally, the cover 26 is a high temperature resistant glass cover, but not limited thereto.

A heating body 24 is provided under the cover 26 to be able to protrude into the cooking chamber and heat the gas therein. By way of example, the heating body 24 provided by the present disclosure is an annular heating tube that extends continuously along the circumferential direction of the cover 26, but is not limited thereto.

The lower fan 22 is rotatably disposed between the heating body 24 and the cover 26 to blow the gas heated by the heating body 24 into the inner pot 11, but not limited thereto. The driving motor 21 is used to drive the lower fan 22 to rotate, and as an example, an output shaft 210 of the driving motor 21 is fixed to the lower fan 22 to transmit the power of the driving motor 21 to the lower fan 22.

In order to improve the safety of the air fryer and prevent the lower fan 22 from accidentally touching the user, the handpiece assembly 2 in this embodiment further includes a wind guiding cover 25, and the wind guiding cover 25 is disposed below the cover 26 and covers the heating body 24, but not limited thereto. In order to improve the smoothness of the hot air flowing in the air fryer, the air guiding cover 25 is provided with a plurality of air vents, but not limited thereto.

The pot body assembly 1 comprises an outer pot 12 and an inner pot 11 for containing food, wherein the outer pot 12 can be provided with an inner cavity, and the inner pot 11 can be detachably placed in the inner cavity so as to be convenient for the inner pot 11 to be taken out and cleaned. The outer pot 12 can be used for heat preservation or heat insulation of the inner pot 11, so that heat leakage is avoided, and the utilization rate of energy is improved.

In order to improve the heating uniformity of the food, the inner pot 11 is rotatably arranged in the outer pot 12. The pot body assembly 1 provided by the disclosure can utilize the driving motor 21 as a power source, drives air to flow by rotating the lower fan 22, drives the inner pot 11 to rotate around the axis of the inner pot, does not need to additionally provide a power source, realizes the rotation of the inner pot 11 by the driving motor 21 of the lower fan 22, simplifies the structure of an air fryer, and reduces the manufacturing cost.

In this embodiment, the driving of the inner pot 11 by the driving motor 21 is indirect driving, that is, the driving motor 21 and the inner pot 11 are not in direct contact, but the lower fan 22 is driven to rotate by the rotation of the driving motor 21 to drive the air in the cooking cavity to flow, and the air flow acts on the inner pot 11 to drive the inner pot 11 to rotate.

With continued reference to fig. 1, in particular, the present embodiment provides an air fryer, which includes an outer pot 12, an inner pot 11, a lower fan 22 and a driving motor 21 for driving the lower fan 22 to rotate, the outer pot 12 has an internal cavity, the inner pot 11 is rotatably disposed in the internal cavity, and the driving motor 21 can drive the lower fan 22 to rotate and drive the inner pot 11 to rotate around its central axis.

In order to increase the windward resistance area of the inner pot 11, the present embodiment provides a plurality of choke pieces on the inner pot 11, and the choke pieces are arranged along the circumferential direction of the inner pot 11.

Specifically, after the driving motor 21 is started, the lower fan 22 will rotate around the output axis of the driving motor 21 under the driving of the driving motor 21, so as to drive the gas in the cooking cavity to centrifugally flow from the position of the lower fan 22 along the radial direction of the inner pot 11, and to spirally flow downwards, as shown in fig. 4, the gas with a predetermined speed meets the choke sheet on the inner pot 11, as shown in fig. 11, the choke sheet will be pushed by the gas, and under the pushing of the gas, the inner pot 11 will rotate around its own axis. As an example, when the driving motor 21 is started, the heating body 24 may be simultaneously started to heat the gas in the cooking cavity to heat the food material, and therefore, the gas may be hot air, but is not limited thereto.

In the present disclosure, the opposite direction of the flow direction of the gas is the windward direction.

With continued reference to fig. 1 to 11, an embodiment is shown in which a choke sheet is provided on the side wall of the inner pot 11, alternatively, the choke sheet may be provided on the side wall of the inner pot 11 to form a side wall choke sheet 112.

Specifically, the inner pan 11 includes an inner pan body 110 and a side wall choke piece 112, the side wall of the inner pan body 110 is provided with a plurality of side wall vent holes 111 along the circumference of the inner pan body 110, at least a part of the plurality of side wall vent holes 111 is provided with a side wall choke piece 112 along the rear side of the windward direction, the side wall choke piece 112 protrudes and extends from the side wall of the inner pan body 110 to extend to the outer side of the side wall vent holes 111 along the radial direction of the inner pan body 110.

In order to increase the gas throughput of the side wall vent holes 111, so that more hot gas contacts with food, and improve the energy utilization efficiency, the side wall vent holes 111 extend obliquely upward along the axial direction of the inner pot 11, and the oblique direction of the side wall vent holes 111 is the same as the rotation direction of the lower fan 22, as shown in fig. 4, for example, but not limited to, when the lower fan 22 rotates counterclockwise, the side wall vent holes 111 extend obliquely upward along the counterclockwise direction, so that the oblique direction of the side wall vent holes 111 is substantially perpendicular to the flow direction of the gas, i.e., the extending direction of the side wall vent holes 111 is perpendicular to the windward direction, so that more gas can pass through the side wall vent holes 111. As an example, the angle α between the extending direction of the side wall vent holes 111 and the axis of the inner pot 11 satisfies 0 ≦ α ≦ 45 °, as shown in FIGS. 2 and 8, but not limited thereto.

Further, the side wall choke sheet 112 extends upwards along the axial direction of the inner pot 11 in an inclined manner, and an included angle beta between the extending direction of the side wall choke sheet 112 and the axis of the inner pot 11 is larger than or equal to 0 degree and smaller than or equal to 45 degrees, so that the side wall choke sheet 112 can intercept more gas, and more gas can pass through the side wall vent holes 111, and the energy utilization rate is further improved. By way of example, but not limitation, the side wall choke flap 112 extends in a direction generally parallel to the side wall vent hole 111.

With continued reference to fig. 2, in order to make the gas pushed by the lower fan 22 flow to the outside of the inner pot 11 as much as possible so as to make the gas contact with the side wall choke pieces 112 as much as possible, the lowest point of the lower fan 22 is located above the top end edge of the inner pot body 110, the vertical distance between the lower fan 22 and the top end edge of the outer pot 12 is smaller than the vertical distance between the lower fan 22 and the top end edge of the inner pot 11, that is, the top end edge of the inner pot 11 is located below the top end edge of the outer pot 12, at this time, the gas driven by the lower fan 22 flows spirally downward to enter the gap between the inner pot body 110 and the outer pot 12, and can contact with the side wall choke pieces 112 and push the side wall choke pieces 112.

In order to further improve the wind-blocking effect of the side wall wind-blocking sheet 112, the distance Lr between the outer wall of the inner pot body 110 and the inner wall of the outer pot 12 satisfies 5mm Lr 15mm. If Lr is too small, the space outside the inner pot body 110 is too small, the side wall choke pieces 112 are small in size, and the contact area between the side wall choke pieces 112 and the gas is small, so that the thrust force applied to the side wall choke pieces 112 is insufficient, and it is difficult to achieve a predetermined rotation speed of the inner pot 11. If Lr is too large, the space outside the inner pot body 110 is too large, and the gas pushed by the lower fan 22 cannot reach the side wall choke sheet 112, so that it is difficult to push the inner pot 11 to rotate.

Referring to fig. 9 to 11, in the present embodiment, the side wall wind blocking piece 112 includes a first piece 1121 and a second piece 1122, the first piece 1121 protrudes from an outer side surface of the inner pot side wall of the inner pot body 110, and the second piece 1122 bends from a radial outer edge of the first piece 1121 to extend, so that the second piece 1122 is spaced apart from the inner pot side wall and is parallel to a tangent line of the inner pot body 110.

Specifically, the second sheet body 1122 is spaced apart from the sidewall of the inner pot body 110, and the second sheet body 1122 is disposed on the radial outer side of the inner pot body 110 and parallel to the tangent line of the inner pot body 110 to form a gas channel between the second sheet body 1122 and the inner pot body 110, the second sheet body 1122 is used for guiding gas, so that the gas can smoothly pass through the sidewall vent holes 111, and mainly plays a role in guiding gas, and at this time, the direction of the arrow in the sidewall choke flap 112 in fig. 11 indicates the flowing direction of the gas.

The first sheet 1121 is connected between the second sheet 1122 and the outer wall of the inner pot body 110, the first sheet 1121 is disposed at the rear side of the side wall vent hole 111 along the windward direction, the gas flows along the second sheet 1122 to contact the first sheet 1121, the flow direction of the gas is substantially perpendicular to the direction of the first sheet 1121, and the inner pot 11 can be driven to rotate around its own axis by generating a thrust on the first sheet 1121.

Specifically, the gas contacting and colliding with the first sheet 1121 will flow along the extending direction of the first sheet 1121, that is, the gas after contacting with the first sheet 1121 changes the flow direction to flow inward along the radial direction of the inner pot 11, at this time, the radial arrow in the inner pot 11 in fig. 11 indicates the flow direction of the gas, so as to pass through the side wall vent holes 111 and enter the cavity of the inner pot 11 to contact with the food for cooking the food.

In this embodiment, the first sheet 1121 and the second sheet 1122 cooperate to guide the gas and enable the gas to push the side wall choke sheet 112 to drive the inner pot 11 to rotate around its own axis.

With reference to fig. 10, in order to reduce the obstruction to the gas, the radially inner arc surface of the joint of the first sheet 1121 and the second sheet 1122 is transited, and the gas can smoothly enter the inner cavity of the inner pot 11 through the side wall vent holes 111 by the guiding function of the arc surface transition, so as to avoid the gas from generating turbulence at the side wall choke flap 112. Optionally, the extending direction of the first sheet 1121 is disposed substantially parallel to the extending direction of the side wall ventilation hole 111 to further avoid blocking of the air flow. Further, the first sheet 1121 and the second sheet 1122 are substantially vertically disposed, but not limited thereto.

Further, the side wall wind blocking sheet 112 further includes a first end sheet and a second end sheet, which respectively extend from two ends of the second sheet 1122 to the corresponding end of the first sheet 1121 and the outer wall of the inner pot 11, so that the side wall wind blocking sheet 112 surrounds the side wall vent holes 111 and forms a U-shaped wind collecting groove, and the opening of the wind collecting groove faces a circumferential tangential direction parallel to the inner pot body 110.

With continued reference to fig. 9 and 10, in order to further increase the force-bearing area of the side wall choke sheet 112, the radial distance between the second sheet 1122 and the side wall of the inner pot body 110 along the inner pot 11 is L, the diameter of the inner pot body 110 is D, and the requirement that L/D is greater than or equal to 0.02 and less than or equal to 0.075 is satisfied, so that the inner pot 11 can be rotated by the thrust of the gas borne by the side wall choke sheet 112, thereby increasing the heating uniformity of the food.

In the embodiment, the side wall choke pieces 112 are arranged on the inner pot 11, the driving motor 21 can be effectively used as a power source for rotating the inner pot 11, the power of the driving motor 21 is transmitted to the inner pot 11 by virtue of the airflow in the cooking cavity, and no additional power source is needed, so that the structure of the air fryer is simplified, and the manufacturing cost of the air fryer is reduced.

Besides, the side wall choke sheet 112 is arranged on the side wall of the inner pot 11, so that the inner pot 11 can be driven to rotate by the gas in the cooking cavity, the heating uniformity of the food in the inner pot 11 is improved, and the taste of the food is improved. Further, by arranging the side wall choke pieces 112, more gas enters the inner cavity of the inner pot 11 along the radial direction of the inner pot 11 to contact with food, more heat in the gas is used for cooking the food, and therefore the utilization rate of energy is improved.

With continued reference to fig. 1 to 11, the inner pot 11 further includes a bottom wall choke sheet 114, the bottom wall of the inner pot body 110 is provided with a plurality of bottom wall vent holes 113 arranged at intervals along the circumferential direction of the inner pot body 110, the bottom wall choke sheet 114 extends from the bottom wall of the inner pot body 110 toward the axial outer side of the bottom wall vent holes 113, that is, the bottom wall choke sheet 114 is arranged axially below the bottom wall vent holes 113 so as to be able to contact the gas below the inner pot body 110, and the inner pot 11 can rotate around the axis thereof under the pushing action of the gas.

Further, in order to allow as much gas as possible to enter the space outside the inner pot body 110 to be in contact with the bottom wall choke sheet 114, the lowest point of the lower fan 22 is located above the top end edge of the inner pot body 110, and the axial distance between the lowest point of the lower fan 22 and the top end edge of the inner pot 11 is greater than the axial distance between the lowest point of the lower fan 22 and the top end edge of the outer pot 12.

Optionally, the bottom wall vent holes 113 extend spirally from the middle to the edge of the inner pot body 110 in the windward direction, so that the air under the inner pot body 110 can enter the cavity of the inner pot 11 through the bottom wall vent holes 113 as much as possible, and the heat in the air is used for cooking food as much as possible, thereby improving the utilization rate of energy.

Specifically, the bottom wall choke piece 114 includes a guiding edge 1141 and a connecting edge 1142, the guiding edge 1141 is substantially parallel to the bottom wall below of the inner pot body 110 to gather and guide the gas below the inner pot 11, the connecting edge 1142 is connected between the guiding edge 1141 and the bottom wall of the inner pot body 110, and the gas acts on the connecting edge 1142 perpendicularly to push the bottom wall choke piece 114 and further push the inner pot 11 to rotate.

As an example, the connecting edge 1142 is disposed substantially perpendicular to the bottom wall of the inner pan 11 to increase the effective frontal area. Further, the guide plate 1141 is substantially parallel to the bottom wall of the inner pot 11 to enable an increase in an effective receiving area.

In order to improve the flowing smoothness of the gas and avoid the occurrence of turbulent flow of the gas at the bottom wall choke plate 114, the junction of the guiding edge 1141 and the connecting edge 1142 is in arc transition, and the gas can be in smooth transition at the bottom wall choke plate 114.

Further, the bottom wall choke sheet 114 forms a U-shaped wind-collecting groove around the bottom wall vent hole 113, and the openings of the plurality of U-shaped wind-collecting grooves face a direction parallel to the circumferential tangential direction of the inner pot body 110.

In order to increase the driving force of the gas to the inner pot 11, in the present embodiment, the side wall of the inner pot body 110 is provided with the side wall choke piece 112, and the bottom wall of the inner pot body 110 is provided with the bottom wall choke piece 114, so as to increase the driving force of the gas to the inner pot 11, enable the inner pot 11 to rotate smoothly, and improve the heating uniformity of the food, but not limited thereto. It is within the scope of the present disclosure to provide the bottom wall choke flap 114 on the bottom wall of the inner pot body 110 and not provide the side wall choke flap 112 on the side wall.

The air fryer that this embodiment provided sets up the choke piece on pot 11 in through, can be with more gaseous leading-in with food contact in pot 11, more heat in the gas is used for the culinary art to energy utilization has been improved.

Specifically, after the user adds the food material to the inner pan 11, the head assembly 2 is closed, and then the start button may be activated to start cooking the food material. The heating body 24 can be heated firstly, after the preset temperature is reached, the driving motor 21 is started to drive the lower fan 22 to rotate, the lower fan 22 drives gas to flow outwards along the radial direction of the inner pot 11, and the gas flows downwards along the outer wall of the inner pot 11 after being heated by the heating body 24, so that the gas flows through the side wall wind-blocking sheets 112 as much as possible and pushes the inner pot 11 to rotate around the axis of the gas, the food material is heated more uniformly, and the taste of food is improved.

Unlike the first exemplary embodiment, the second exemplary embodiment of the present disclosure provides an air fryer in which the sidewall choke plate 112 is disposed radially inside the inner pot body 110 and extends from the sidewall of the inner pot body 110 into the inner cavity of the inner pot body 110, and referring to fig. 12 to 14, the air fryer of the second exemplary embodiment of the present disclosure is shown.

Referring to fig. 12, in the present embodiment, in order to make the gas spirally flowing downward from the position of the lower fan 22 contact the side wall choke 112 as much as possible, the lowest point of the lower fan 22 is located below the top edge of the inner pot body 110, and the gas driven by the lower fan 22 spirally flows downward along the inner wall of the inner pot 11. In this embodiment, the outer pot 12 is simplified for convenience of description.

In this embodiment, the sidewall of the inner pot body 110 does not need to be provided with the sidewall ventilation holes 111, and the sidewall choke sheet 112 extends from the inner wall of the inner pot body 110 toward the inner cavity of the inner pot body 110.

Alternatively, the side wall choke plate 112 extends obliquely upward along the axial direction of the inner pan 11, and the oblique direction of the side wall choke plate 112 is the same as the rotation direction of the lower fan 22. Referring to fig. 12, as an example, an included angle γ between the extending direction of the side wall choke flap 112 and the axis of the inner pot 11 satisfies 0 ° ≦ γ ≦ 45 °, but not limited thereto.

The gas flowing in the tangential direction of the sidewall of the inner pot body 110 changes the flowing direction of the gas through the sidewall choke sheet 112, so that the gas flows toward the food at the center of the inner pot 11, so that the heat in the gas is used for cooking the food as much as possible, and the energy utilization rate is improved.

With continued reference to fig. 12, in order to further improve the guiding performance of the gas flow, the inner pot 11 further includes a flow returning plate 116 fixed to the top end of the side wall choke plate 112 and extending obliquely upward toward the lower fan 22, so as to guide the gas passing through the side wall choke plate 112 to the lower fan 22 for participating in the next gas flow cycle. In this way, the cooperation of the side wall choke sheet 112 and the return plate 116 enables the gas in the inner pot 11 to flow in a predetermined direction, i.e., directionally, so as to use the heat in the gas as much as possible for cooking food, thereby further improving the energy utilization rate.

In this embodiment, the air driven by the lower fan 22 leaves the lower fan 22 along the radial direction of the lower fan 22 and spirally flows downwards along the side wall of the inner pot 11 to the side wall choke sheet 112, and the air guided by the side wall choke sheet 112 flows towards the center of the inner pot 11 to fully contact with the food in the inner pot 11, thereby improving the utilization rate of energy. The gas passes through the food and then rises spirally and contacts the return plate 116, and the gas is guided to the next gas circulation by the guiding action of the return plate 116.

Optionally, the junction of the backflow plate 116 and the sidewall choke 112 is cambered to avoid gas turbulence at the cambered transition location, thereby further improving the directionality of the gas flow.

With continued reference to fig. 13 and 14, as an example, the side wall choke flap 112 in the present embodiment is a substantially rectangular flat plate structure, the length direction of the flat plate structure extends substantially along the side wall of the inner pot 11 in an inclined manner, and the width direction of the flat plate structure extends substantially along the radial direction of the inner pot 11, so that the side wall choke flap 112 is substantially perpendicular to the side wall of the inner pot body 110, but not limited thereto.

In order to improve the directionality of the gas flow, the radial inner arc surface of the joint of the side wall choke sheet 112 and the side wall of the inner pot body 110 is in transition, so that the gas is prevented from generating turbulence at the arc surface transition position.

In this embodiment, since the sidewall choke sheet 112 is disposed in the inner cavity of the inner pot body 110, the gas flowing along the inner wall of the inner pot body 110 can act on the sidewall choke sheet 112. Since the side wall choke pieces 112 are disposed substantially perpendicular to the side wall of the inner pot body 110, the gas changes the flowing direction at the side wall choke pieces 112, and at this time, the gas provides a pushing force to the side wall choke pieces 112 to push the inner pot 11 to rotate around the axis thereof.

For convenience of description, the present embodiment is described by taking the inner wall of the inner pot body 110 as an example to be provided with the side wall choke sheet 112, however, in order to further improve the driving force of the inner pot 11, the bottom wall of the inner pot body 110 may be further provided with the bottom wall choke sheet 114.

Specifically, the bottom wall choke sheet 114 extends from the bottom wall of the inner pan body 110 toward the inner cavity of the inner pan body 10 (not shown), the bottom wall choke sheet 114 may be substantially plate-shaped and extends along the axis of the inner pan body 110 toward the inner cavity, the bottom wall choke sheet 114 extends spirally from the middle to the edge of the inner pan body 110, and the extending direction of the bottom wall choke sheet 114 is opposite to the rotating direction of the lower fan 22, so that the gas flowing to the bottom wall can flow spirally upward through the bottom wall choke sheet 114, but not limited thereto.

To further enhance the directionality of the gas flow, the junction between the bottom wall choke flap 114 and the bottom wall of the inner pot body 110 is curved to avoid turbulence of the gas.

In order to enable the inner pot 11 to rotate around its own axis smoothly, besides obtaining sufficient driving force, the obstruction in the rotation process can be reduced, for example, but not limited to, the friction between the inner pot 11 and the outer pot 12 can be reduced.

With continued reference to FIGS. 1 and 2, FIGS. 5 and 6, and FIG. 15, the air fryer also includes a bearing assembly 13 to reduce friction during rotation of the inner pot 11 relative to the outer pot 12.

Specifically, the bearing assembly 13 is supported between the inner pot 11 and the outer pot 12, the bearing assembly 13 includes a bearing 131 and a connecting shaft 132, a first end of the connecting shaft 132 is fixed to a bearing inner ring, one of the inner pot 11 and the outer pot 12 is fixed to a bearing outer ring, and the other is detachably connected to a second end of the connecting shaft 132, so that the inner pot 11 is detachably supported in the outer pot 12.

In this embodiment, the connecting shaft 132 extends substantially along the axial direction of the inner pot 11, and the first end of the connecting shaft 132 is taken as the bottom end, and the second end is taken as the top end for illustration.

The bottom end of the connecting shaft 132 is in interference fit with the bearing inner ring, so that the connecting shaft 132 and the bearing 131 are connected to form the bearing assembly 13, and the bearing outer ring is in interference fit with the bottom wall of the outer pot 12, so that the bearing 131 is stably arranged on the outer pot 12. The sunken heavy groove 115 that is provided with of the diapire of interior pot 11, the top and the heavy groove 115 clearance fit of connecting axle 132 make things convenient for put into outer pot 12 inner chamber or take out from outer pot 12 inner chamber with interior pot 11.

In order to allow the connecting shaft 132 and the inner pot 11 to rotate simultaneously, the second end of the connecting shaft 132 has a non-circular cross-section to prevent relative rotation between the connecting shaft 132 and the sink 115.

To facilitate the matching of the inner pot 11 with the connecting shaft 132, the second end of the connecting shaft 132 may be a regular polygon, and the sink 115 may be capable of matching with the second end (top end) of the connecting shaft 132, for example, but not limited thereto, the sink 115 may be a cylindrical sink. Since the sink groove 115 is located at the bottom wall of the inner pot 11 and is invisible to a user when the connecting shaft 132 is combined, the probability of matching the sink groove 115 with the second end of the connecting shaft 132 is improved by setting the second end of the connecting shaft 132 to be a regular polygon, thereby facilitating the user's assembly.

As an example, the circumscribed circle diameter of the sink groove 115 is D1, and the circumscribed circle diameter D2 of the top end of the connecting shaft 132 satisfies 0.2mm < D1-D2 < 1mm.

When the distance between the sinking groove 115 and the side wall at the top end of the connecting shaft 132 is too large, the sinking groove 115 may generate a certain degree of idle stroke, and even the sinking groove 115 does not contact with the side wall of the connecting shaft 132, so that the inner pot 11 may swing or rock freely above the connecting shaft 132, the support is unreliable, and the smooth rotation of the inner pot 11 is affected. When the distance between the sinking groove 115 and the side wall of the top end of the connecting shaft 132 is too small, the inner pot 11 is not smoothly matched with the connecting shaft 132, and a user needs to take effort to insert the top end of the connecting shaft 132 into the sinking groove 115 of the inner pot 11, or to separate the inner pot 11 from the top end of the connecting shaft 132.

In addition, it is within the scope of the present disclosure that the second end of the connecting shaft 132 is semi-circular in cross-section.

Further, the sinking groove 115 is formed by inwards sinking from the bottom wall of the inner pot 11, the second end of the connecting shaft 132 is supported in the sinking groove 115 in a clearance fit manner, the cross section of the first end of the connecting shaft 132 is a cylinder, the diameter of the cross section of the first end of the connecting shaft 132 is D3, and D3 < D2 is satisfied. In this way, the first end of the connecting shaft 132 can provide stable support for the inner pot 11.

In order to avoid accidental touch between the inner pot 11 and the outer pot 12, the depth of the sinking groove 115 is H1, the second end of the connecting shaft 132 is provided with a connecting section, the axial height of the connecting section is H2, H2 is more than or equal to 5mm and less than or equal to 10mm, and H1 is more than H2. Thus, a predetermined gap is ensured to be arranged between the bottom wall of the inner pot 11 and the bottom wall of the outer pot 12, and the inner pot 11 is prevented from shaking relative to the first end of the connecting shaft 132 and accidentally touching the bottom wall of the outer pot 12.

In this embodiment, the bearing 131 is disposed between the connecting shaft 132 and the outer pot 12, and may be disposed between the connecting shaft 132 and the inner pot 11, but not limited thereto.

In the present disclosure, the bearing assembly 13 is disposed between the inner pot 11 and the outer pot 12, so that the frictional resistance of the inner pot 11 in the rotation process relative to the outer pot 12 is reduced, and the inner pot 11 can smoothly rotate around its own axis.

In addition, referring to fig. 16 and 17, the air fryer according to the third exemplary embodiment of the present disclosure may further include a protrusion 121 formed on the bottom wall of the outer pot 12 to form a point support with the inner pot 11, thereby reducing friction during rotation of the inner pot 11 with respect to the outer pot 12.

Specifically, the bottom wall of the outer pot 12 is provided with a boss 121 protruding upwards along the axial direction, the top end of the boss 121 is spherical, and the inner pot 11 is rotatably supported on the spherical surface. Illustratively, the top end of the boss 121 extends into the sinking groove 115, so that the top end of the boss 121 is supported on the bottom of the sinking groove 115, so that the sinking groove 115 and the boss 121 are supported at a point, thereby reducing the friction between the connecting shaft 132 and the inner pan 11. In the embodiment, the sink 115 is a cylindrical sink, but not limited thereto. In the embodiment, the top end of the boss 121 is set to be spherical, so that the contact area between the boss 121 and the sink groove 115 of the inner pot 11 is reduced, and the purpose of reducing friction force is achieved.

In addition, the sinking groove 115 may be formed as a spherical sinking groove to match the spherical surface of the boss 121, but not limited thereto.

As an example, the bottom surface of the inner pan 11 is concavely provided with a sinking groove 115, the diameter of the sinking groove 115 is D1, the diameter of the spherical surface is D2, and the requirement that D1-D2 is more than or equal to 0.2mm and less than or equal to 1mm is satisfied, on one hand, the inner pan 11 can be conveniently installed on the connecting shaft 132, and on the other hand, the inner pan 11 can smoothly rotate on the connecting shaft 132.

The boss 121 may be formed separately from the outer pot 12 and then assembled together by a welding process, or the boss 121 and the outer pot 12 may be integrally formed by a casting process, all of which are within the protection scope of the present disclosure. In addition, the top of the boss 121 may have a 3/4 spherical surface, or a 1/2 spherical surface, or a 1/3 spherical surface, all of which are within the scope of the present disclosure.

Further, in this embodiment, the air fryer further includes at least 3 round protrusions (not shown), and the round protrusions are disposed between the bottom wall of the inner pot 11 and the bottom wall of the outer pot 12 to reduce the friction between the inner pot 11 and the outer pot 12. Specifically, one of the diapire of interior pot 11 and the diapire of outer pot 12 caves in and is provided with the annular groove that matches with the button head arch, and this annular groove extends in succession along the diapire of interior pot 11 or the diapire circumference of outer pot 12, and 3 at least button head archs set up on another, and 3 at least button head archs roll in the annular groove to the diapire of pot 11 and the diapire interval of outer pot 12 set up in making, thereby reduce the frictional force between pot 11 and the outer pot 12 in the reduction, pot 11 is rotatory smoothly in the convenience.

In this embodiment, the round head protrusion is rotatably connected to the bottom wall of the inner pot 11, and the annular groove is formed in the bottom wall of the outer pot 12. In order to simplify the description, the round head protrusion is only arranged between the inner pot 11 and the outer pot 12 in the present embodiment, besides, the bottom wall of the outer pot 12 may be provided with the boss 121, and the boss 121 and the round head protrusion are matched to realize the reliable support of the inner pot 11 in the outer pot 12, which is within the protection scope of the present disclosure. Alternatively, the knobs may also cooperate with the bearing assembly 13 to provide a secure support for the inner pan 11, and are within the scope of the present disclosure.

The above embodiments disclose contact type supports between the inner pot 11 and the outer pot 12, and besides, non-contact type supports may be provided between the inner pot 11 and the outer pot 12.

Referring to fig. 18 to 21, a fourth exemplary embodiment of the present disclosure provides a longitudinal sectional view of an air fryer.

The air fryer also comprises a magnetic attraction component 15 which is supported between the inner pot 11 and the outer pot 12, the magnetic attraction component 15 comprises an inner pot magnet arranged on the inner pot 11 and an outer pot magnet arranged on the outer pot 12, and the outer pot magnet and the inner pot magnet are matched to enable the inner pot 11 to be suspended in the outer pot 12. Therefore, the inner pot 11 can keep a suspension state and cannot fall down, and the inner pot 11 and the outer pot 12 are prevented from being rubbed, so that the friction force between the inner pot 11 and the outer pot 12 is reduced.

Further, with reference to fig. 18, the magnetic assembly 15 includes an inner ring magnetic assembly 151, the inner ring magnetic assembly 151 includes an inner ring 1511 disposed at the central position of the bottom wall of the inner pan 11 and an outer ring 1512 disposed on the bottom wall of the outer pan 12, the inner ring 1511 and the outer ring 1512 are disposed in alignment, and the magnetism of the inner ring 1511 is the same as that of the outer ring 1512. Because the inner pot inner ring 1511 and the outer pot inner ring 1512 which have the same magnetism repel each other, when the inner pot 11 is disposed in the inner cavity of the outer pot 12, due to the repulsive force of the inner pot inner ring 1511 and the outer pot inner ring 1512, the inner pot 11 will receive an upward thrust along the axial direction, so as to overcome the gravity of the inner pot 11 itself and the gravity of the built-in food material, and avoid the direct physical contact between the inner pot 11 and the outer pot 12, and during the rotation of the inner pot 11, the friction between the inner pot 11 and the outer pot 12 is avoided.

By way of example, but not limitation, the inner pan inner ring 1511 and the outer pan inner ring 1512 are disposed on a central axis of the outer pan 12.

In addition, in this embodiment, the inner ring 1511 and the outer ring 1512 may be a permanent magnet or an electromagnet, respectively, and are within the protection scope of the present disclosure.

With reference to fig. 18, in this embodiment, the magnetic component 15 includes an outer ring magnetic component 152, the outer ring magnetic component 152 includes a plurality of inner pot outer ring members 1521 and a plurality of outer pot outer ring members 1522 matching with the inner pot outer ring members 1521, the inner pot outer ring members 1521 are disposed on the inner pot 11, the plurality of inner pot outer ring members 1521 are disposed in pairs along the radial direction of the inner pot 11, as shown in fig. 19, the outer pot outer ring members 1522 are disposed on the outer pot 12, and the magnetism of the inner pot outer ring members 1521 is the same as that of the outer pot outer ring members 1522.

With continued reference to fig. 19-21, as an example, but not by way of limitation, a plurality of inner pot outer ring members 1521 are disposed on the same circumference of the inner pot 11. The outer pot outer ring members 1522 are disposed on the same circumference of the outer pot 12, but not limited thereto. In order to provide a repulsive magnetic attraction force better, each inner pot outer ring member 1521 is correspondingly provided with an outer pot outer ring member 1522, i.e., the inner pot outer ring members 1521 correspond to the outer pot outer ring members 1522 one by one, but not limited thereto.

As an example, the inner pot outer ring member 1521 is disposed at the connection between the bottom wall and the side wall of the inner pot 11, and correspondingly, the outer pot outer ring member 1522 is disposed at the connection between the bottom wall and the side wall of the outer pot 12, so that the outer pot outer ring member 1522 can provide a radially inclined upward thrust to the inner pot outer ring member 1521, so as to overcome the gravity of the inner pot 11 and the gravity of the food material in the inner pot 11.

Referring to fig. 19 and 21, alternatively, the supporting force of the inner pot 11 by the paired inner pot outer ring members 1521 is equal in magnitude and opposite in direction in the radial direction, so that the resultant force of the magnetic attraction force in the radial direction of the inner pot 11 is 0, and the radial play of the inner pot 11 is avoided. In the rotating process of the inner pan 11, the resultant force of the radial forces exerted on the inner pan outer ring members 1521 arranged in pairs is kept to be 0, that is, the resultant force exerted on one inner pan outer ring member 1521 in fig. 21 is FC, and the resultant force exerted on the other inner pan outer ring member 1521 corresponding to the resultant force is FC1, which is equal to FC in magnitude and opposite in direction, so as to keep the real-time resultant force of the inner pan 11 to be 0.

Fig. 19 shows the stress condition of the inner pan outer ring member 1521 when the outer pan outer ring member 1522 and the inner pan outer ring member 1521 are aligned, and the radial inward thrust FX and FX1 applied to the inner pan outer ring member 1521 are equal and opposite in direction, so that the inner pan 11 is radially balanced, and the inner pan 11 is prevented from radially moving.

Further, the supporting force of the paired inner pot outer ring members 1521 to the inner pot 11 has the same component in the axial direction, so as to avoid the phenomenon that the inner pot 11 is turned over due to large force applied to one side.

With reference to fig. 18, in the air fryer of this embodiment, the inner ring magnetic attraction assembly 151 and the outer ring magnetic attraction assembly 152 cooperate to provide an upward pushing force to the inner pot 11, and the upward pushing force is not less than the sum of the gravity of the inner pot 11 and the gravity of the food to be cooked, so that the inner pot 11 and the outer pot 12 are spaced apart from each other, the inner pot 11 and the outer pot 12 are prevented from being in physical contact, and friction is prevented from being generated during the rotation of the inner pot 11 relative to the outer pot 12.

In addition to the above embodiments in which the inner pot 11 rotates in the outer pot 12 and the driving force is indirectly driven by the driving motor 21, the inner pot 11 and the driving motor 21 may be physically connected so far that the inner pot 11 is directly driven by the driving motor 21.

The inner pot 11 of the air fryer provided by the present disclosure may be provided with at least one of the side wall choke pieces 112 and the bottom wall choke pieces 114 according to actual needs, and in addition, the support between the inner pot 11 and the outer pot 12 may be any one of the boss 121, the bearing assembly 13, the round head protrusion, and the magnetic attraction assembly 15, so as to improve the reliability of the air fryer.

In the description of the present disclosure, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the disclosure, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the disclosure.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present disclosure, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, and for example, may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, or communicatively connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

The described features, structures, or characteristics of the disclosure may be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Claims

1. An air fryer, characterized in that said air fryer comprises:

the pot body assembly (1) comprises an inner pot (11) and an outer pot (12), the outer pot (12) is provided with an inner cavity, the inner pot (11) is rotatably arranged in the inner cavity, and the inner pot (11) comprises an inner pot body (110) and a choke sheet arranged on the inner pot body (110);

head assembly (2), set up in pot body subassembly (1) top, head assembly (2) are including lower fan (22) and driving motor (21), lower fan (22) are located the lower part of head assembly (2) is used for with gas blow to interior pot (11), output shaft (210) of driving motor (21) connect in lower fan (22), driving motor (21) are used for the drive fan (22) are rotatory down, the choke piece is in fan (22) blows under the effect of air current and can drive interior pot (11) wind the central axis of pot body subassembly (1) is rotatory.

2. The air fryer according to claim 1, wherein the inner pot body (110) comprises an inner pot bottom wall and an inner pot side wall connected with the inner pot bottom wall, the choke sheet comprises a side wall choke sheet (112) arranged on the outer surface of the inner pot side wall, a plurality of side wall vent holes (111) are arranged on the inner pot side wall along the circumferential direction of the inner pot body (110), the side wall choke sheet (112) is arranged on one side of the side wall vent holes (111) along the circumferential direction of the inner pot body (110), and the side wall choke sheet (112) protrudes from the side wall of the inner pot body (110) to extend to the outer side of the side wall vent holes (111) along the radial direction of the inner pot body (110).

3. The air fryer according to claim 2, wherein the side wall vent holes (111) are obliquely extended in the height direction of the inner pot (11) and the angle α between the extension direction of the side wall vent holes (111) and the axis of the inner pot (11) satisfies 0 ° ≦ α ≦ 45 °, and the oblique direction of the side wall vent holes (111) is the same as the rotation direction of the lower fan (22).

4. Air fryer according to claim 3, wherein the extension of said side wall choke flap (112) is parallel to the extension of said side wall vent hole (111).

5. The air fryer according to claim 2, wherein the side wall wind-blocking flaps (112) comprise first flaps (1121) and second flaps (1122), the first flaps (1121) protruding from the outer side surface of the inner pot side wall of the inner pot body (110), and the second flaps (1122) bending-extending from the radial outer edge of the first flaps (1121) so that the second flaps (1122) are spaced apart from the inner pot side wall and parallel to the tangent line of the inner pot body (110).

6. An air fryer according to claim 2, wherein the lowest point of the lower fan (22) is located above the top edge of the inner pot body (110), the axial distance of the lowest point of the lower fan (22) from the top edge of the inner pot (11) being greater than the axial distance of the lowest point of the lower fan (22) from the top edge of the outer pot (12).

7. An air fryer according to claim 1, wherein the distance Lr between the outer wall of the inner pot body (110) and the inner wall of the outer pot (12) satisfies 5mm Lr 15mm.

8. The air fryer according to claim 5 wherein said first sheet (1121) and said second sheet (1122) are vertically disposed; and/or the presence of a gas in the atmosphere,

a radial inner arc transition at the connection of the first sheet body (1121) and the second sheet body (1122); and/or the presence of a gas in the gas,

second lamellar body (1122) with the lateral wall of interior pot body (110) is in the edge the radial distance of interior pot (11) is L, the diameter of interior pot body (110) is D, satisfies 0.02 and is less than or equal to L/D and is less than or equal to 0.075.

9. The air fryer of claim 1, wherein said choke plate comprises a sidewall choke plate (112), said sidewall choke plate (112) extending from an inner wall of said inner pot body (110) toward an inner cavity of said inner pot body (110).

10. An air fryer according to claim 9, wherein the side wall flaps (112) extend at an angle γ of 0 ° γ 45 ° to the axis of the inner pot (11).

11. The air fryer of claim 9 wherein said inner pot (11) further comprises a backflow plate (116), said backflow plate (116) being fixed to a top end of said sidewall choke plate (112) and extending obliquely upward toward said lower fan (22).

12. An air fryer according to claim 11 wherein the junction of said backflow plate (116) and said sidewall choke (112) transitions arcuately.

13. The air fryer of claim 9 wherein said sidewall choke plate (112) is perpendicular to a sidewall of said inner pot body (110); and/or the presence of a gas in the gas,

the radial inner side cambered surface at the joint of the side wall choke piece (112) and the side wall of the inner pot body (110) is in transition.

14. The air fryer of claim 9 wherein the lowest point of said lower fan (22) is located below the top edge of said inner pot body (110).

15. The air fryer according to claim 1, wherein the choke sheet comprises a bottom wall choke sheet (114), the bottom wall of the inner pot body (110) is provided with a plurality of bottom wall vent holes (113) arranged at intervals along the circumferential direction of the inner pot body (110), the bottom wall choke sheet (114) is arranged axially below the bottom wall vent holes (113), and the bottom wall choke sheet (114) extends from the bottom wall of the inner pot body (110) toward the axially outer side of the bottom wall vent holes (113).

16. The air fryer of claim 15 wherein the lowest point of said lower fan (22) is located above the top end edge of said inner pot body (110), the axial distance between the lowest point of said lower fan (22) and the top end edge of said inner pot (11) being greater than the axial distance between the lowest point of said lower fan (22) and the top end edge of said outer pot (12), said bottom wall vent (113) extending helically from the middle to the edge of said inner pot body (110).

17. The air fryer according to claim 15, wherein said bottom wall choke flap (114) comprises a leading edge (1141) and a connecting edge (1142), said leading edge (1141) being parallel to and below a bottom wall of said inner pot body (110), said connecting edge (1142) being connected between said leading edge (1141) and said bottom wall of said inner pot body (110).

18. An air fryer according to claim 17, wherein the junction of said leading edge (1141) and said joining edge (1142) is radiused; and/or the presence of a gas in the gas,

the guide edge (1141) and the connecting edge (1142) are vertically arranged; and/or the presence of a gas in the gas,

the connecting edge (1142) is arranged on one side of the bottom wall vent hole (113) along the circumferential direction of the inner pot (11), and the connecting edge (1142) is perpendicular to the bottom wall of the inner pot body (110).

19. The air fryer according to claim 1, wherein the choke plate comprises a bottom wall choke plate (114), the bottom wall of the inner pot body (110) being provided with a plurality of bottom wall choke plates (114) arranged at intervals in a circumferential direction of the inner pot body (110), the bottom wall choke plates (114) extending from the bottom wall of the inner pot body (110) toward an axially inner side of the inner pot body (110).

20. The air fryer of claim 19 wherein the junction of said bottom wall choke flap (114) and said bottom wall of said inner pot body (110) transitions arcuately; and/or the presence of a gas in the gas,

the bottom wall choke sheet (114) is perpendicular to the bottom wall of the inner pot body (110).

21. An air fryer according to claim 1, wherein the air fryer further comprises a bearing assembly (13) supported between the inner pot (11) and the outer pot (12), the bearing assembly (13) comprising a bearing (131) and a connecting shaft (132), a first end of the connecting shaft (132) being fixed to an inner bearing ring, one of the inner pot (11) and the outer pot (12) being fixed to an outer bearing ring, the other being detachably connected to a second end of the connecting shaft (132) such that the inner pot (11) is detachably supported within the outer pot (12).

22. An air fryer according to claim 21, wherein the second end of said connecting shaft (132) is non-circular in cross-section.

23. The air fryer according to claim 22, wherein the cross section of the second end of the connecting shaft (132) is positive multi-deformation, the inner pot (11) or the outer pot (12) is provided with a sinking groove (115) for matching with the second end of the connecting shaft (132), the diameter of the circumscribed circle of the sinking groove (115) is D1, the diameter of the circumscribed circle of the second end of the connecting shaft (132) is D2, and the requirements that the diameter of the circumscribed circle is 0.2mm ≤ D1-D2 ≤ 1mm are met; or the like, or, alternatively,

the cross section of the second end of the connecting shaft (132) is semicircular, the sinking groove (115) is cylindrical, the diameter of the sinking groove (115) is D1, the diameter of the second end of the connecting shaft (132) is D2, and the requirements that D1-D2 is more than or equal to 0.2mm and less than or equal to 1mm are met.

24. An air fryer according to claim 23, wherein the countersink (115) is formed by an inward recess in the bottom wall of the inner pot (11), the second end of the connecting shaft (132) is supported in the countersink (115) with a clearance fit, the first end of the connecting shaft (132) has a cylindrical cross-section, and the first end of the connecting shaft (132) has a cross-sectional diameter D3 which satisfies D3 < D2.

25. The air fryer according to claim 23, wherein the depth of the sink groove (115) is H1, the second end of the connecting shaft (132) is provided with a connecting section, the axial height of the connecting section is H2, and the axial height of the connecting section is H2 or more, and satisfies 5mm or less and 10mm or less, and H1 > H2.

26. An air fryer according to claim 1, wherein the bottom wall of the outer pot (12) is provided with a projection (121) projecting axially upward, the top end of the projection (121) having a spherical surface on which the inner pot (11) is rotatably supported.

27. The air fryer according to claim 26, wherein the bottom surface of the inner pot (11) is concavely provided with a sinking groove (115) matched with the boss (121), the diameter of the sinking groove (115) is D1, the diameter of the spherical surface is D2, and the requirements that D1 is more than or equal to 0.2mm and D2 is less than or equal to 1mm are met.

28. The air fryer according to claim 1, wherein the air fryer further comprises at least 3 rounded protrusions, one of the bottom wall of the inner pot (11) and the bottom wall of the outer pot (12) is concavely provided with an annular groove matching the rounded protrusions, the annular groove extends continuously along the circumference of the bottom wall of the inner pot (11) or the bottom wall of the outer pot (12), the at least 3 rounded protrusions are provided on the other, and the at least 3 rounded protrusions roll within the annular groove, such that the bottom wall of the inner pot (11) is spaced apart from the bottom wall of the outer pot (12).

29. The air fryer according to claim 1, wherein the air fryer further comprises a magnetic attraction assembly (15) supported between the inner pot (11) and the outer pot (12), the magnetic attraction assembly (15) comprising an inner pot magnet disposed on the inner pot (11) and an outer pot magnet disposed on the outer pot (12), the outer pot magnet cooperating with the inner pot magnet to cause the inner pot (11) to be suspended in the outer pot (12).

30. The air fryer according to claim 29, wherein the magnetic assembly (15) comprises an inner ring magnetic assembly (151), the inner ring magnetic assembly (151) comprises an inner ring member (1511) disposed at a central position of a bottom wall of the inner pot (11) and an outer pot ring member (1512) disposed at a bottom wall of the outer pot (12), the inner ring member (1511) and the outer pot ring member (1512) are disposed in alignment, and the magnetic property of the inner pot ring member (1511) is the same as the magnetic property of the outer pot ring member (1512).

31. The air fryer according to claim 29, wherein the magnetic assembly (15) comprises an outer ring magnetic assembly (152), the outer ring magnetic assembly (152) comprises a plurality of inner pot outer ring members (1521) and a plurality of outer pot outer ring members (1522) matching the inner pot outer ring members (1521), the inner pot outer ring members (1521) are disposed on the inner pot (11), the plurality of inner pot outer ring members (1521) are disposed in pairs along a radial direction of the inner pot (11), the outer pot outer ring members (1522) are disposed on the outer pot (12), and the magnetism of the inner pot outer ring members (1521) is the same as that of the outer pot outer ring members (1522).

32. An air fryer according to claim 31, wherein the inner pot outer ring member (1521) is provided at the junction of the bottom wall and the side wall of the inner pot (11).

33. Air fryer according to claim 31, wherein said inner pot outer ring members (1521) arranged in pairs support said inner pot (11) in radial direction with equal and opposite forces; and/or the presence of a gas in the atmosphere,

the supporting force of the inner pot outer ring members (1521) arranged in pairs to the inner pot (11) has the same component in the axial direction.

34. Air fryer according to claim 29, wherein said magnetically attracting assembly (15) provides an upward pushing force to said inner pot (11) which is not less than the sum of the weight of said inner pot (11) and the weight of the food to be cooked, so that said inner pot (11) is spaced apart from said outer pot (12).