Heat dissipation system of air fryer and air fryer

Abstract

This invention discloses a heat dissipation system for an air fryer and an air fryer. The heat dissipation system includes a heat dissipation impeller and a motor. The motor is disposed inside the heat dissipation impeller and drives the impeller to rotate. The heat dissipation impeller includes an upper ring body, a base plate, and a plurality of first blades evenly distributed along the circumferential direction. The lower end face of the upper ring body is fixedly connected to the upper end face of the base plate through the first blades. The base plate includes a center plate and an outer ring body surrounding the center plate. The inner ring of the outer ring body extends upward to form an outer annular baffle, and the outer side of the center plate extends upward to form an inner annular baffle. The outer annular baffle and the inner annular baffle are fixedly connected by a plurality of second blades evenly distributed along the circumferential direction. The center plate has a shaft hole at its center for connection with the drive shaft of the motor. The advantage is that it helps to improve the heat dissipation effect, thereby ensuring the stability of the entire machine operation.

Description

Technical Field

[0001] This invention belongs to the field of household appliance technology, and in particular relates to a heat dissipation system for an air fryer and an air fryer. Background Technology

[0002] An air fryer is an appliance that uses high-temperature air to fry and grill food. During operation, its internal heating elements and components generate a large amount of heat. To ensure the safe operation of the device, prevent the outer shell from overheating, and extend the lifespan of the internal electronic components, a heat dissipation channel is usually set between the outer side of the cooking cavity and the outer shell. A motor-driven fan or impeller accelerates air circulation to achieve overall cooling and heat dissipation.

[0003] To optimize the internal structure, such as the heat dissipation system for an air fryer disclosed in application number CN2021101522954, this technical solution adopts a heat dissipation impeller structure, and places the motor inside the heat dissipation impeller to drive its rotation. This design, which nests the motor and impeller together, greatly reduces the height space occupied by the original separate installation of the motor and fan, thus lowering the overall height of the air fryer; on the other hand, it aims to utilize the heat dissipation impeller to obtain a higher flow rate and a wider range of airflow to improve the overall heat dissipation effect of the machine.

[0004] However, the above structural design has certain limitations in actual operation. Because the motor is encased in the center of the cooling impeller, when the impeller rotates at high speed, outside cold air enters from the upper air inlet and is mainly thrown outwards radially along the surrounding air outlets by the action of the blades. This specific airflow direction causes the cold air to rapidly diffuse towards the outer flow channel of the impeller, while the flow velocity in the central area is relatively weak, resulting in less contact between the cold air and the surface of the motor casing in the center. The motor itself also continuously generates heat when driving the impeller for extended periods. Due to the lack of sufficient and direct cold air for convective heat exchange, the motor's own heat dissipation effect is poor. Over time, heat easily accumulates inside the motor, which can easily lead to overheating failure under continuous high-load operation. This not only affects the stability of the entire machine's operation but also severely shortens the motor's lifespan, and the overall reliability of the equipment needs further improvement. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a heat dissipation system for an air fryer and an air fryer, which helps to improve the heat dissipation effect and thus ensure the stability of the whole machine operation.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a heat dissipation system for an air fryer, including a heat dissipation impeller and a motor, wherein the motor is disposed inside the heat dissipation impeller and is used to drive the heat dissipation impeller to rotate, the heat dissipation impeller includes an upper ring body, a bottom plate and a plurality of first blades distributed at equal intervals along the circumferential direction, and the lower end face of the upper ring body is fixedly connected to the upper end face of the bottom plate through the first blades; The base plate includes a center plate and an outer ring body surrounding the center plate. The inner ring of the outer ring body extends upward to form an outer annular baffle, and the outer side of the center plate extends upward to form an inner annular baffle. The outer annular baffle and the inner annular baffle are fixedly connected by a plurality of second blades that are equally spaced along the circumferential direction. The center of the center plate is provided with a shaft hole for connecting to the drive shaft of the motor. When the motor drives the heat dissipation impeller to rotate, the first blade guides the airflow to flow radially outward to form a first airflow, and the second blade guides the airflow to flow upward to form a second airflow for cooling the motor. The second airflow mixes with the first airflow after passing through the motor.

[0007] Preferably, the outer diameter of the upper ring body is D1, the inner diameter of the upper ring body is D2, the outer diameter of the outer ring body is D3, and the outer diameter of the outer annular baffle is D4, satisfying: D1 > D3 > D2 > D4; The axial height of the first blade is H1, and the axial height of the second blade is H2, satisfying: H1≥2H2.

[0008] Preferably, the number of the first blades is N1, and the diameter of the circle containing their outer end faces is D. 5max The diameter of the circle containing the inner end face is D. 5min And the installation tilt angle of the first blade section is α1; The number of the second blades is N2, and the diameter of the circle containing its outer end face is D. 6max The diameter of the circle containing the inner end face is D. 6min And the installation tilt angle of the second blade section is α2; The first blade and the second blade satisfy the following airflow distribution relationship: ; Where λ is the air volume distribution coefficient, which satisfies: 30≤λ≤43.

[0009] Preferably, the height of the outer annular baffle is greater than the height of the inner annular baffle, and a guide ring is provided on the inner side of the outer annular baffle. The guide ring is located above the second blade and is inclined upward from the outside to the inside.

[0010] Preferably, a support ring is fixedly provided on the top outer side of the motor housing, and an annular guide rail is provided on the upper end face of the support ring; a number of support members are detachably connected to the top of the outer annular baffle, and a rolling ball is provided at one end of the support member extending above the support ring. The ball is fitted into the annular guide rail, and an obstacle passage for the second airflow is formed between two adjacent support members.

[0011] Preferably, the support includes a crossbeam, the ball bearing is fixedly disposed at one end of the crossbeam, and two lugs are integrally disposed at the other end of the crossbeam. The two lugs are arranged in a Y-shape with the crossbeam, and the end of the lug away from the crossbeam extends downward to form a connecting strip. The connecting strip is detachably connected to the top of the outer annular baffle.

[0012] Preferably, the lower end of the connecting strip is provided with a groove for fitting with the top of the outer annular baffle, the side of the connecting strip is provided with a first hole, the side of the outer annular baffle is provided with a second hole corresponding to the first hole, and the bolt passes through the corresponding first hole and second hole.

[0013] Preferably, the two lugs, the two connecting strips, and the top of the outer annular baffle form a clearance opening. A first air guide plate is provided on the lower surface of the crossbeam. When the crossbeam rotates with the outer annular baffle, the second airflow is guided to flow radially outward through the first air guide plate to mix with the first airflow.

[0014] Preferably, a second air guide plate is provided on the upper surface of the crossbeam, which is used to guide air outward in a radial direction.

[0015] And an air fryer, including a pot body, a cooking chamber provided in the pot body, an air inlet provided at the top of the pot body, an installation cavity provided between the cooking chamber and the air inlet, a heat dissipation system of the air fryer as described above being provided in the installation cavity, and a drive shaft of the motor extending into the cooking chamber and connected to a heat circulation fan.

[0016] Compared with the prior art, the advantages of the present invention are as follows: 1. Through the design of the inner and outer annular baffles of the base plate and the second blade, when the motor drives the heat dissipation impeller to rotate, the second blade guides the airflow upward to form a second airflow. This second airflow flows directly through the motor to cool it down, which makes up for the deficiency of weak cold air flow in the central area of ​​the motor in the traditional nested structure. It effectively avoids the accumulation of heat inside the motor, reduces the risk of overheating failure under continuous high load conditions, thereby improving the heat dissipation effect of the motor and the stability of the whole machine operation. It has good reliability and is suitable for long-term use. 2. By reasonably limiting the inner and outer diameters of each ring and baffle, and parameterizing the height and airflow distribution coefficient of the first and second blades, the flow rate of the intake channel is guaranteed from a geometrical perspective, avoiding aerodynamic throttling. At the same time, it ensures that the suction negative pressure of the first airflow on the periphery dominates, so that the second airflow carrying the heat of the motor can be smoothly drawn in and mixed and discharged, thus optimizing the overall aerodynamic performance. 3. By adding a support ring with an annular guide rail to the top of the motor housing and installing a support component with ball bearings on the top of the outer annular baffle, not only is multi-point rolling support provided for the high-speed rotating heat dissipation impeller, significantly improving the stability and dynamic balance of the nested structure, but the clearance channel reserved between adjacent support components also ensures that the second airflow from bottom to top can be smoothly discharged. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the heat dissipation system of the air fryer in this invention; Figure 2 This is a schematic diagram of the heat dissipation impeller in this invention; Figure 3 This is a cross-sectional schematic diagram of the heat dissipation system of the air fryer in this invention; Figure 4 This is a schematic cross-sectional view of the heat dissipation impeller in this invention; Figure 5 This is a partial structural diagram of the present invention. Figure 1 ; Figure 6 This is a partial structural diagram of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the air fryer in this invention; Figure 8 This is a partial structural diagram of the air fryer in this invention; Figure 9 This is a schematic diagram of a partial explosion structure of the air fryer in this invention.

[0018] In the diagram: 1. Heat dissipation impeller; 11. Upper ring body; 12. Base plate; 121. Center plate; 122. Outer ring body; 123. Outer annular baffle; 1231. Guide ring; 1232. Second hole body; 124. Inner annular baffle; 125. Second blade; 126. Shaft hole; 13. First blade; 2. Motor; 21. Housing; 22. Drive shaft; 3. Support ring; 31. Annular guide rail; 4. Support component; 41. Crossbeam; 411. First air guide plate; 412. Second air guide plate; 42. Lug; 43. Connecting strip; 431. Slot; 432. First hole body; 44. Clearance opening; 5. Ball bearing; 6. Clearance channel; 7. Pot body; 71. Cooking cavity; 72. Air inlet; 73. Mounting cavity; 74. Heat circulation fan; 75. Mounting base; 751. Connecting plate. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Example 1: As Figures 1 to 3 As shown, a heat dissipation system for an air fryer includes a heat dissipation impeller 1 and a motor 2. The motor 2 is disposed inside the heat dissipation impeller 1 and is used to drive the heat dissipation impeller 1 to rotate. The heat dissipation impeller 1 includes an upper ring body 11, a bottom plate 12 and a plurality of first blades 13 distributed at equal intervals along the circumferential direction. The lower end face of the upper ring body 11 is fixedly connected to the upper end face of the bottom plate 12 through the first blades 13.

[0022] In this embodiment, the base plate 12 includes a center plate 121 and an outer ring body 122 surrounding the center plate 121. The inner ring of the outer ring body 122 extends upward to form an outer annular baffle 123, and the outer side of the center plate 121 extends upward to form an inner annular baffle 124. The outer annular baffle 123 and the inner annular baffle 124 are fixedly connected by a plurality of second blades 125 distributed at equal intervals along the circumferential direction. The center of the center plate 121 is provided with a shaft hole 126 connected to the drive shaft 22 of the motor 2.

[0023] When the motor 2 drives the cooling impeller 1 to rotate, the first blade 13 guides the airflow radially outward to form a first airflow, and the second blade 125 guides the airflow upward to form a second airflow for cooling the motor 2. The second airflow mixes with the first airflow after passing through the motor 2. This second airflow flows directly through the motor 2 to cool it down, which makes up for the deficiency of weak cold air velocity in the central area of ​​the motor 2 in the traditional nested structure, effectively avoids heat accumulation inside the motor 2, and reduces the risk of overheating failure under continuous high load conditions.

[0024] Preferably, the outer diameter of the inner annular baffle 124 is consistent with the outer diameter of the motor housing 21, and a gap is left between the upper end face of the inner annular baffle 124 and the lower end of the motor housing 21. By setting the height of the inner annular baffle 124 to be lower than that of the motor housing 21, and making its outer diameter consistent with that of the motor housing 21, a smooth transition guide seat is formed in the structure. When the second blade 125 draws air upward from the bottom annular channel to form a second airflow, the second airflow can directly adhere to the exposed surface of the motor housing 21 without obstruction or step transition after passing over the low inner annular baffle 124, forming a 360-degree surrounding high-speed wall-mounted cooling air curtain with good heat dissipation efficiency.

[0025] Example 2: Figures 2 to 4 As shown, the rest of the parts are the same as in Embodiment 1, except that the outer diameter of the upper ring body 11 is D1, the inner diameter of the upper ring body 11 is D2, the outer diameter of the outer ring body 122 is D3, and the outer diameter of the outer annular baffle 123 is D4, satisfying: D1>D3>D2>D4; the axial height of the first blade 13 is H1, and the axial height of the second blade 125 is H2, satisfying: H1≥2H2.

[0026] By reasonably limiting the inner and outer diameters of each ring and baffle, the flow area of ​​the air intake channel is guaranteed geometrically, avoiding aerodynamic throttling. At the same time, limiting the height of the first blade 13 to be much greater than the height of the second blade 125 ensures that the suction negative pressure of the peripheral first airflow is absolutely dominant, allowing the second airflow carrying heat from the motor 2 to be smoothly drawn in and mixed and discharged after passing through the bottom plate 12, completely eliminating hot air backflow and internal stagnation.

[0027] Furthermore, the number of first blades 13 is N1, and the diameter of the circle containing their outer end faces is D. 5max The diameter of the circle containing the inner end face is D. 5min The installation angle of the first blade 13 section is α1; the number of second blades 125 is N2, and the diameter of the circle containing their outer end faces is D. 6max The diameter of the circle containing the inner end face is D. 6min The installation angle of the second blade 125 section is α2; the first blade 13 and the second blade 125 satisfy the following airflow distribution relationship: ; Wherein, λ is the air volume distribution coefficient, which satisfies: 30≤λ≤43, with the preferred range being 34-37.

[0028] This parameter design comprehensively considers core fluid dynamics elements such as blade sweep area, axial air intake volume, power frequency, and effective aerodynamic angle of attack. Limiting the airflow distribution coefficient λ to the range of 30 to 43 ensures that the main cooling airflow and centripetal negative pressure generated by the outer ring's first blade 13 have an overwhelming fluid dynamic advantage. This guarantees that the second airflow drawn up from the inner ring will be "encircled" by the main airflow and forced radially discharged, preventing hot air stagnation caused by excessive inner ring airflow breaking through the negative pressure zone; simultaneously, it also ensures that the inner ring's suction force is not too weak to overcome the air resistance of the motor 2 gap, achieving an optimal dynamic balance between "main heat dissipation of the outer casing" and "auxiliary cooling of the motor 2".

[0029] Example 3: Figure 1 , Figure 3 and Figure 5 As shown, the rest is the same as in Embodiment 1, except that the height of the outer annular baffle 123 is greater than the height of the inner annular baffle 124. A guide ring 1231 is provided on the inner side of the outer annular baffle 123. The guide ring 1231 is located above the second blade 125. The guide ring 1231 is inclined upward from the outside to the inside. The guide ring 1231 plays a guiding role, so that the second airflow can fully contact the motor 2 housing 21 to achieve heat dissipation.

[0030] In this embodiment, a support ring 3 is fixedly installed on the top outer side of the motor housing 21, and an annular guide rail 31 is provided on the upper end surface of the support ring 3. Several support members 4 are detachably connected to the top of the outer annular baffle 123. A rolling ball 5 is provided at one end of the support member 4 extending above the support ring 3. The ball 5 fits in the annular guide rail 31, and a clearance channel 6 for the second airflow is formed between two adjacent support members 4. This structural design, with its multi-point rolling support, provides a good rotational support for the high-speed rotating heat dissipation impeller 1, significantly improving the overall stability and dynamic balance of the nested structure and reducing the eccentric load on the motor 2 shaft. At the same time, the clearance channel 6 reserved between adjacent support members 4 also ensures that the second airflow from bottom to top can be smoothly discharged, avoiding heat backflow caused by poor ventilation due to structural obstruction.

[0031] Example 4: Figure 3 , Figure 5 and Figure 6As shown, the rest of the parts are the same as in Embodiment 3. The difference is that the support member 4 includes a crossbeam 41, the ball bearing 5 is fixedly disposed at one end of the crossbeam 41, and the other end of the crossbeam 41 is integrally provided with two lugs 42. The two lugs 42 are arranged in a Y-shape with the crossbeam 41. The end of the lug 42 away from the crossbeam 41 extends downward to form a connecting strip 43. The connecting strip 43 is detachably connected to the top of the outer annular baffle 123.

[0032] In this embodiment, the lower end of the connecting strip 43 is provided with a groove 431 for fitting with the top of the outer annular baffle 123. The side of the connecting strip 43 is provided with a first hole 432, and the side of the outer annular baffle 123 is provided with a second hole 1232 corresponding to the first hole 432. Bolts (not shown in the figure) pass through the corresponding first and second holes 432. It should be noted that the connecting strip 43 is generally made of plastic. During bolt tightening, it will be fixed by an interference fit with the first hole 432. Of course, the first hole 432 can also be a threaded hole. Furthermore, both opposite sides of the connecting strip 43 are provided with first holes 432. Bolts pass through one first hole 432, one second hole 1232, and another first hole 432 in sequence, resulting in a more stable connection that is less prone to loosening.

[0033] In this embodiment, the two lugs 42, the two connecting strips 43, and the top of the outer annular baffle 123 form an avoidance opening 44. A first air guide plate 411 is provided on the lower surface of the crossbeam 41. When the crossbeam 41 rotates with the outer annular baffle 123, the first air guide plate 411 guides the second airflow radially outward to mix with the first airflow. When the crossbeam 41 rotates at high speed with the heat dissipation impeller 1, the first air guide plate 411 can actively and efficiently guide the upward overflowing second airflow to flow radially outward. This not only accelerates the mixing and discharge of the hot air that carries away the heat of the motor 2 with the peripheral first airflow, but also effectively reduces airflow turbulence and hot air retention in the central top area, further optimizing the overall heat dissipation efficiency.

[0034] Furthermore, a second air guide plate 412 is provided on the upper surface of the crossbeam 41, which is used to guide air outward in a radial direction.

[0035] Example 5: Figures 7 to 9 As shown, an air fryer includes a pot body 7, a cooking chamber 71 inside the pot body 7, an air inlet 72 at the top of the pot body 7, an installation cavity 73 between the cooking chamber 71 and the air inlet 72, a heat dissipation system for the air fryer as described above is provided in the installation cavity 73, and a drive shaft 22 of a motor 2 extends into the cooking chamber 71 and is connected to a heat circulation fan 74.

[0036] In this embodiment, the upper end of the housing 21 of the motor 2 is connected to a mounting base 75. Multiple connecting plates 751 are integrally provided on the mounting base 75 in a radial distribution. The other end of the connecting plate 751 is connected to the edge of the mounting cavity 73. A hollow area is formed between adjacent connecting plates 751 to allow airflow.

[0037] By applying the aforementioned highly stable and efficient heat dissipation system to an air fryer, a single motor 2 simultaneously drives the bottom heat circulation fan 74 and the top heat dissipation impeller 1. While maintaining a highly integrated overall structure and saving top space, this effectively overcomes the overheating risk caused by the long-term high-load operation of the motor 2, extends the service life of the entire machine, and demonstrates good overall applicability.

[0038] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A heat dissipation system for an air fryer, comprising a heat dissipation impeller (1) and a motor (2), wherein the motor (2) is disposed inside the heat dissipation impeller (1) and is used to drive the heat dissipation impeller (1) to rotate, characterized in that: The heat dissipation impeller (1) includes an upper ring body (11), a base plate (12) and a number of first blades (13) evenly distributed along the circumferential direction. The lower end face of the upper ring body (11) is fixedly connected to the upper end face of the base plate (12) through the first blades (13). The base plate (12) includes a center plate (121) and an outer ring body (122) surrounding the center plate (121). The inner ring of the outer ring body (122) extends upward to form an outer ring baffle (123), and the outer side of the center plate (121) extends upward to form an inner ring baffle (124). The outer ring baffle (123) and the inner ring baffle (124) are fixedly connected by a plurality of second blades (125) evenly distributed along the circumferential direction. The center of the center plate (121) is provided with a shaft hole (126) for connecting to the drive shaft (22) of the motor (2). When the motor (2) drives the heat dissipation impeller (1) to rotate, the first blade (13) guides the airflow to flow radially outward to form a first airflow, and the second blade (125) guides the airflow to flow upward to form a second airflow for cooling the motor (2). The second airflow mixes with the first airflow after passing through the motor (2).

2. The heat dissipation system for an air fryer according to claim 1, characterized in that: The outer diameter of the upper ring body (11) is D1, the inner diameter of the upper ring body (11) is D2, the outer diameter of the outer ring body (122) is D3, and the outer diameter of the outer ring baffle (123) is D4, satisfying: D1>D3>D2>D4; The axial height of the first blade (13) is H1, and the axial height of the second blade (125) is H2, satisfying: H1≥2H2.

3. The heat dissipation system for an air fryer according to claim 2, characterized in that: The number of the first blades (13) is N1, and the diameter of the circle containing their outer end faces is D. 5max The diameter of the circle containing the inner end face is D. 5min And the installation angle of the first blade (13) section is α1; The number of the second blades (125) is N2, and the diameter of the circle containing their outer end faces is D. 6max The diameter of the circle containing the inner end face is D. 6min And the installation angle of the second blade (125) section is α2; The first blade (13) and the second blade (125) satisfy the following airflow distribution relationship: ； Where λ is the air volume distribution coefficient, which satisfies: 30≤λ≤43.

4. The heat dissipation system for an air fryer according to claim 2, characterized in that: The height of the outer annular baffle (123) is greater than the height of the inner annular baffle (124). A guide ring (1231) is provided on the inner side of the outer annular baffle (123). The guide ring (1231) is located above the second blade (125). The guide ring (1231) is inclined upward from the outside to the inside.

5. The heat dissipation system for an air fryer according to claim 2, characterized in that: A support ring (3) is fixedly provided on the top of the outer side of the motor (2) housing (21), and an annular guide rail (31) is provided on the upper end face of the support ring (3); a number of support members (4) are detachably connected to the top of the outer annular baffle (123), and a rolling ball (5) is provided at one end of the support member (4) extending above the support ring (3), and the ball (5) is fitted into the annular guide rail (31), and a clearance channel (6) for the second airflow is formed between two adjacent support members (4).

6. The heat dissipation system for an air fryer according to claim 5, characterized in that: The support member (4) includes a crossbeam (41), the ball bearing (5) is fixedly disposed at one end of the crossbeam (41), and the other end of the crossbeam (41) is integrally provided with two lugs (42). The two lugs (42) are arranged in a Y-shape with the crossbeam (41). The end of the lug (42) away from the crossbeam (41) extends downward to form a connecting strip (43). The connecting strip (43) is detachably connected to the top of the outer annular baffle (123).

7. The heat dissipation system for an air fryer according to claim 6, characterized in that: The lower end of the connecting strip (43) is provided with a slot (431) for matching the top of the outer annular baffle (123). The side of the connecting strip (43) is provided with a first hole (432). The side of the outer annular baffle (123) is provided with a second hole (1232) corresponding to the first hole (432). The bolt passes through the corresponding first hole (432) and second hole (1232).

8. The heat dissipation system for an air fryer according to claim 6, characterized in that: The two lugs (42), the two connecting strips (43), and the top of the outer annular baffle (123) form an avoidance opening (44). The lower surface of the crossbeam (41) is provided with a first air guide plate (411). When the crossbeam (41) rotates with the outer annular baffle (123), the second airflow is guided to flow radially outward through the first air guide plate (411) to mix with the first airflow.

9. The heat dissipation system for an air fryer according to claim 8, characterized in that: The upper surface of the crossbeam (41) is provided with a second air guide plate (412), which is used to guide air outward in a radial direction.

10. An air fryer, comprising a pot body (7), wherein a cooking cavity (71) is provided inside the pot body (7), an air inlet (72) is provided at the top of the pot body (7), and an installation cavity (73) is provided between the cooking cavity (71) and the air inlet (72), characterized in that: The mounting cavity (73) is provided with a heat dissipation system for an air fryer as described in any one of claims 1-9, and the drive shaft (22) of the motor (2) extends into the cooking cavity (71) and is connected to a heat circulation fan (74).

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