Heat dissipation structure of air fryer

Abstract

The utility model discloses a heat dissipation structure of an air fryer, which comprises a machine body and a fan blade assembly, a cooking cavity is arranged in the machine body, the fan blade assembly is arranged at the top of the cooking cavity, the machine body is provided with an air inlet and an air outlet, a heat dissipation module is arranged at the top of the cooking cavity, and the heat dissipation module comprises a motor, a heat dissipation frame and a rotating shaft. The motor is in transmission connection with the fan blade assembly through the rotating shaft, the fan blade assembly is installed in the heat dissipation frame, the heat dissipation frame comprises a fan cover and a heat insulation frame, the rotating shaft is sleeved with the fan cover and the heat insulation frame, a gap is formed between the fan cover and the heat insulation frame, a first heat dissipation cavity is formed in the fan cover, a second heat dissipation cavity is formed in the bottom of the heat insulation frame, and the gap is communicated with the first heat dissipation cavity. According to the air fryer, the heat dissipation effect of the air fryer is improved, so that the surface temperature of the machine body is reduced, a user is prevented from being scalded, and meanwhile the service life of the air fryer is longer; the utility model has the advantages of compact structure, low cost and good stability.

Description

Technical Field

[0001] The utility model relates to a heat dissipation structure of an air fryer. Background Art

[0002] The air fryer mainly uses air to replace the hot oil in the original frying pan, and uses the convection mechanism and a mechanical fan to circulate the hot air around the food at high speed to cook the food. In this process, the air fryer produces a crispy layer on the food through the Maillard reaction and the caramelization browning reaction, so that the ingredients achieve an effect similar to that of deep-frying. In the prior art, the air fryer includes a body and a fryer drawer installed in the inner tank of the body, and a fan device is installed above the inner tank. The fan device includes a hot air fan that fans air into the inner tank to form a hot air flow for heating and frying, and a heat dissipation fan that fans air in the body to drive the air flow through the air inlet and exhaust port on the outer shell of the body to exchange heat with the outside of the body to achieve heat dissipation. In order to ensure that all parts of the fuselage can get heat dissipation, multiple air inlets are provided on the upper and lower parts of the fuselage. However, according to the principles of fluid mechanics, the closer the air inlet is to the exhaust port, the more air is taken in, and the farther the air inlet is from the exhaust port, the less air is taken in. Although there are many air inlets in the prior art, the path through which the heat dissipation airflow passes is actually very short, and the amount of heat that can be taken away is limited, and the expected heat dissipation effect cannot be achieved. It is difficult for traditional air intake to suck the cold air around the heat dissipation rack into the wind cover, which makes the cavity temperature where the cold air blades of the air fryer are located higher, thereby causing the problem of higher surface temperature of the product. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in existing products and provide a heat dissipation structure for an air fryer.

[0004] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0005] A heat dissipation structure of an air fryer comprises a body and a fan blade assembly. A cooking cavity is arranged inside the body, and the fan blade assembly is installed on the top of the cooking cavity. The body is provided with an air inlet and an air outlet. The fan blade assembly allows air outside the body to enter through the air inlet and flow out through the air outlet to take away the heat in the body shell. A heat dissipation module is arranged on the top of the cooking cavity. The heat dissipation module comprises a motor, a heat dissipation frame, and a rotating shaft. The motor is transmission-connected to the fan blade assembly through the rotating shaft. The fan blade assembly is installed in the heat dissipation frame. The heat dissipation frame comprises a fan cover and a heat insulation frame. The fan cover and the heat insulation frame are both sleeved on the rotating shaft. A gap is arranged between the fan cover and the heat insulation frame. A first heat dissipation cavity is arranged inside the fan cover. A second heat dissipation cavity is arranged at the bottom of the heat insulation frame. The gap is connected with the first heat dissipation cavity. The air outside the body enters the first heat dissipation cavity through the air inlet and then flows through the gap and is discharged from the air outlet. The hot air inside the cooking cavity flows through the gap through the second heat dissipation cavity and is discharged from the air outlet.

[0006] Preferably, the heat dissipation module also includes an air guide plate, which is installed in the second heat dissipation cavity. The air guide plate is provided with a first vent. The hot air inside the cooking cavity passes through the first vent and enters the second heat dissipation cavity, flows through the gap and is discharged from the exhaust port.

[0007] Preferably, a second vent is provided on the insulation rack, and the hot air inside the cooking cavity passes through the first vent and then enters the second heat dissipation cavity, then enters the second vent, flows through the gap and is discharged from the exhaust port.

[0008] Preferably, the air hood is provided with a third vent, and the air outside the machine body enters the first heat dissipation cavity through the air inlet and the third vent, then flows through the gap and is discharged from the exhaust port.

[0009] Preferably, the fan blade assembly includes cold air blades and hot air blades, the cold air blades are installed in the first heat dissipation cavity, and the hot air blades are installed in the air guide plate.

[0010] Preferably, it also includes a fan blade cover plate, which is installed at the bottom of the wind cover, and the gap is located between the fan blade cover plate and the insulation frame.

[0011] Preferably, the motor, the fan cover, the cold air blades, the fan cover plate, the heat insulation frame, the hot air blades and the air guide plate are distributed from top to bottom in sequence.

[0012] Preferably, the air inlet is located at the top of the machine body.

[0013] Preferably, the air outlet is located on the side of the machine body.

[0014] Preferably, the air outlet is provided with a strip grille.

[0015] The beneficial effects of the utility model are as follows: the utility model raises the position of the air hood so that a gap is provided between the air hood and the insulation frame. In addition to the traditional air intake cycle, a new air intake cycle is added. After the cold air enters from the air inlet, it will enter the gap between the air hood and the insulation frame, and be discharged from the exhaust port, during which the heat radiated from the inside of the cooking cavity is taken away, thereby reducing the temperature of the product surface, thereby improving the heat dissipation effect of the air fryer, thereby reducing the surface temperature of the body, avoiding scalding the user, and at the same time extending the service life of the product; the utility model has a compact structure, low cost and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 is a schematic diagram of the three-dimensional structure of the heat dissipation module;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the heat dissipation module. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described below in conjunction with the accompanying drawings of the specification:

[0021] like Figures 1 to 4 As shown, a heat dissipation structure of an air fryer includes a body 1 and a fan assembly. A cooking cavity 13 is provided inside the body 1. The fan assembly is installed on the top of the cooking cavity 13. The body 1 is provided with an air inlet 11 and an air outlet 12. The air inlet 11 is located at the top of the body 1, and the air outlet 12 is located at the side of the body 1. The fan assembly allows air outside the body 1 to enter through the air inlet 11 and flow out through the air outlet 12 to take away the heat in the body shell. A heat dissipation module is provided on the top of the cooking cavity 13. The heat dissipation module includes a motor 21, a heat dissipation frame 23, a rotating shaft 22, and an air guide plate 3. The motor 21 is connected to the fan assembly through the rotating shaft 22. The fan assembly is installed in the heat dissipation frame 23. The heat dissipation frame 23 includes a wind cover 231 and a heat insulation frame 232. The wind cover 231 and the heat insulation frame 232 are both sleeved on the rotating shaft 22. A gap 24 is provided between the wind cover 231 and the heat insulation frame 232. A first heat dissipation cavity 2311 is provided inside the cover 231, a second heat dissipation cavity 2321 is provided at the bottom of the heat insulation frame 232, a gap 24 is communicated with the first heat dissipation cavity 2311, air outside the machine body 1 enters the first heat dissipation cavity 2311 through the air inlet 11, flows through the gap 24 and is discharged from the exhaust port 12, the air guide plate 3 is installed in the second heat dissipation cavity 2321, the air guide plate 3 is provided with a first vent 31, hot air inside the cooking cavity 13 enters the second heat dissipation cavity 2321 through the first vent 31, flows through the gap 24 and is discharged from the exhaust port 12. The utility model raises the height of the air cover 231, so that there is a gap 24 between the air cover 231 and the heat insulation frame 232, and through the gap 24, one more heat transmission channel is provided, so that the heat dissipation effect is better.

[0022] like Figure 3 , Figure 4 As shown, a second vent 2322 is provided on the insulation frame 232 , and the hot air inside the cooking cavity 13 passes through the first vent 31 and then enters the second heat dissipation cavity 2321 , then enters the second vent 2322 , flows through the gap 24 and is discharged from the exhaust port 12 .

[0023] like Figure 3 , Figure 4 As shown, the air cover 231 is provided with a third vent 2312 , and the air outside the body 1 enters the first heat dissipation cavity 2311 through the air inlet 11 and the third vent 2312 , then flows through the gap 24 and is discharged from the exhaust port 12 .

[0024] like Figure 4As shown, the fan blade assembly includes a cold air blade 41 and a hot air blade 42. The cold air blade 41 is installed in the first heat dissipation cavity 2311, and the hot air blade 42 is installed in the air guide plate 3. The combination of the cold air blade 41 and the hot air blade 42 can greatly remove the heat radiated from the cooking cavity.

[0025] like Figure 3 , Figure 4 As shown, the heat dissipation module further includes a fan cover plate 5, which is installed at the bottom of the fan cover 231, and the gap 24 is located between the fan cover plate 5 and the heat insulation frame 232.

[0026] like Figure 3 , Figure 4 As shown, the motor 21, the wind hood 231, the cold air blades 41, the wind blade hood cover 5, the insulation frame 232, the hot air blades 42, and the air guide plate 3 are arranged from top to bottom in sequence, and the motor drives the cold air blades 41 and the hot air blades 42 to rotate, and the wind hood 23, the wind blade hood cover 5, the insulation frame 232, and the air guide plate 3 are all mounted on the rotating shaft 22, and the motor 21, the wind hood 231, the cold air blades 41, the wind blade hood cover 5, the insulation frame 232, the hot air blades 42, and the air guide plate 3 are all symmetrical relative to the rotating shaft 22, so that the structure of the utility model is stable.

[0027] like Figure 1 As shown, the air outlet 12 is provided with a strip grille 121. The strip grille air outlet can disperse the airflow, making the airflow more uniform, thereby achieving better heat dissipation and cooling effects.

[0028] Working principle:

[0029] like Figures 1 to 4 As shown, the air fryer starts to work, the motor rotates, driving the hot air blades to rotate, and the hot air blades blow the heat from the heating tube into the fryer and bake the food. During the heating process, the hot air in the cooking cavity 1 will be thrown out from the first vent 31 set on the air guide plate, and part of the heat energy will radiate from the air guide plate to the first heat dissipation cavity 2311, enter the second vent 2322, flow through the gap 24, and be discharged from the exhaust port 12. The cold air outside the body 1 enters through the air inlet 1 at the top, then enters the first heat dissipation cavity 2311 through the air inlet 11 through the third vent 2312, and then flows through the gap 24 and is discharged from the exhaust port 12, taking away the heat radiated from the air guide plate and reducing the temperature of the product surface.

[0030] The utility model raises the position of the air hood so that a gap is provided between the air hood and the insulation frame. In addition to the traditional air intake cycle, a new air intake cycle is added. After the cold air enters from the air inlet, it will enter the gap between the air hood and the insulation frame and be discharged from the exhaust port, during which the heat radiated from the inside of the cooking cavity is taken away, thereby reducing the temperature of the product surface, thereby improving the heat dissipation effect of the air fryer, thereby reducing the surface temperature of the body, avoiding scalding the user, and at the same time extending the service life of the product. The utility model has a compact structure, low cost and good stability.

[0031] It should be noted that the above is only a specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiment, and there are many variations. In short, all variations that can be directly derived or associated with the content disclosed by ordinary technicians in this field should be considered as the protection scope of the present invention.

Claims

1. A heat dissipation structure of an air fryer, comprising a body (1) and a fan assembly, wherein a cooking cavity (13) is arranged inside the body (1), and the fan assembly is installed on the top of the cooking cavity (13), and the body (1) is provided with an air inlet (11) and an air outlet (12), and the fan assembly allows air outside the body (1) to enter through the air inlet (11) and flow out through the air outlet (12) to take away heat in the body shell, characterized in that: A heat dissipation module is arranged on the top of the cooking cavity (13), the heat dissipation module comprising a motor (21), a heat dissipation frame (23), and a rotating shaft (22); the motor (21) is transmission-connected to a fan blade assembly via the rotating shaft (22); the fan blade assembly is installed in the heat dissipation frame (23); the heat dissipation frame (23) comprises a wind shield (231) and a heat insulation frame (232); the wind shield (231) and the heat insulation frame (232) are both sleeved on the rotating shaft (22); a gap (24) is arranged between the wind shield (231) and the heat insulation frame (232); ), a first heat dissipation cavity (2311) is provided inside the wind cover (231), a second heat dissipation cavity (2321) is provided at the bottom of the heat insulation frame (232), the gap (24) is connected to the first heat dissipation cavity (2311), air outside the machine body (1) enters the first heat dissipation cavity (2311) through the air inlet (11), flows through the gap (24) and is discharged from the exhaust port (12), and hot air inside the cooking cavity (13) flows through the second heat dissipation cavity (2321), flows through the gap (24) and is discharged from the exhaust port (12).

2. The heat dissipation structure of an air fryer according to claim 1, characterized in that: The heat dissipation module further comprises an air guide plate (3), wherein the air guide plate (3) is installed in the second heat dissipation cavity (2321), and the air guide plate (3) is provided with a first ventilation port (31), and the hot air inside the cooking cavity (13) enters the second heat dissipation cavity (2321) through the first ventilation port (31), flows through the gap (24), and is discharged from the exhaust port (12).

3. The heat dissipation structure of an air fryer according to claim 2, characterized in that: The heat insulation frame (232) is provided with a second ventilation opening (2322), and the hot air inside the cooking cavity (13) passes through the first ventilation opening (31), enters the second heat dissipation cavity (2321), enters the second ventilation opening (2322), flows through the gap (24), and is discharged from the exhaust port (12).

4. The heat dissipation structure of an air fryer according to claim 1, characterized in that: The wind shield (231) is provided with a third ventilation port (2312), and air outside the machine body (1) enters the first heat dissipation cavity (2311) through the air inlet (11) and the third ventilation port (2312), then flows through the gap (24) and is discharged from the air outlet (12).

5. The heat dissipation structure of an air fryer according to claim 1, characterized in that: The fan blade assembly comprises a cold air blade (41) and a hot air blade (42); the cold air blade (41) is installed in the first heat dissipation cavity (2311), and the hot air blade (42) is installed in the air guide plate (3).

6. The heat dissipation structure of an air fryer according to claim 1, characterized in that: The heat dissipation module further comprises a fan blade cover plate (5), wherein the fan blade cover plate (5) is mounted on the bottom of the fan cover (231), and the gap (24) is located between the fan blade cover plate (5) and the heat insulation frame (232).

7. The heat dissipation structure of an air fryer according to claim 6, characterized in that: The motor (21), the fan cover (231), the cold air blades (41), the fan cover plate (5), the heat insulation frame (232), the hot air blades (42), and the air guide plate (3) are arranged in sequence from top to bottom.

8. The heat dissipation structure of an air fryer according to claim 1, characterized in that: The air inlet (11) is located at the top of the machine body (1).

9. The heat dissipation structure of an air fryer according to claim 1, characterized in that: The air outlet (12) is located on the side of the machine body (1).

10. The heat dissipation structure of an air fryer according to claim 1, characterized in that: The air outlet (12) is provided with a strip-shaped grille (121).

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