Hot air circulation structure of air fryer and double-layer air fryer

Abstract

The utility model discloses a hot air circulation structure of an air fryer, which comprises a hot air device, a cooking cavity and a fryer body, the hot air device and the cooking cavity are arranged in a fryer main body, the fryer body is arranged in the cooking cavity, a hot air cavity for accommodating the hot air device is arranged on the back of the cooking cavity, and the hot air cavity and the cooking cavity are separated through a back plate. The hot air device works to blow air to form a circulating hot air duct in the cooking cavity and the frying pan body; air guide baffle plates are formed on partial wall surfaces, close to the back side wall, of the left side wall and the right side wall of the fryer body, hot air is guided to a place far away from the back hot air device through the air guide baffle plates and then enters the fryer body, a hot air circulating air duct is prolonged, so that the flowing area of the air duct is wider, food materials in the fryer body are more uniformly heated, cooked and fried, and the frying efficiency is improved. All food materials in the fryer body can be fully cooked; the double-layer air fryer comprises a fryer body, an upper-layer cooking cavity and a lower-layer cooking cavity, wherein the upper-layer cooking cavity and the lower-layer cooking cavity are formed in the fryer body. An upper hot air device is arranged at the top of the upper-layer cooking cavity, and an upper fryer body is inserted into the upper hot air device; a lower hot air device is arranged on the back of the lower-layer cooking cavity, a lower fryer body is inserted into the lower hot air device, and the hot air circulation structure is adopted; both the upper cooking cavity and the lower cooking cavity have a good cooking effect, so that a user can cook food at the same time through double lines more conveniently.

Description

Technical Field

[0001] The utility model relates to the field of air fryers, in particular to a hot air circulation structure of an air fryer and a double-layer air fryer. Background Art

[0002] An air fryer is a kitchen appliance that cooks food by hot air. Compared with fried food, it has less oil and is healthier. In the prior art, there is an air fryer that outputs hot air from the back to cook the food in the fryer. Since the air outlet is located at the back, the hot air blown out will first heat the ingredients close to the back, while the ingredients far from the back cannot be fully heated, resulting in different cooking effects and taste differences between the ingredients close to the back and those far from the back, affecting the eating experience. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a hot air circulation structure of an air fryer and a double-layer air fryer.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] A hot air circulation structure of an air fryer includes a hot air device and a cooking cavity arranged in the fryer body, and a fryer body installed in the cooking cavity. A hot air cavity for accommodating the hot air device is provided at the back of the cooking cavity. The hot air cavity and the cooking cavity are separated by a back plate. The back plate is provided with an air outlet and an air return port. The side walls of the fryer body are respectively provided with a first ventilation port and a second ventilation port;

[0006] Among them, the second ventilation port is located on the back side wall of the fryer body and is docked with the air return port. When the hot air device works, hot air is blown out from the air outlet into the cooking cavity, enters the fryer body through the first ventilation port on the fryer body, then returns to the hot air cavity through the second ventilation port and the air return port, and is agitated by the hot air device again and blown out from the air outlet to form a circulating hot air duct; the first ventilation port is arranged on the left and right side walls of the fryer body, and guide wind shielding plates are formed on the partial wall surfaces of the left and right side walls close to the back side wall.

[0007] The midline of the guide wind shielding plate is aligned with the middle horizontal line of the left and right side walls. A plurality of openings are formed on the left and right side walls to form the first ventilation port, and the plurality of openings are arranged around the guide wind shielding plate.

[0008] The hot air device adopts a centrifugal fan. The air return port is located in the middle of the back plate and is aligned with the center of the centrifugal fan. The air outlet is arranged around the air return port.

[0009] A double-layer air fryer, comprising a fryer main body, an upper cooking cavity and a lower cooking cavity arranged in the fryer main body; an upper hot air device is provided at the top of the upper cooking cavity and an upper fryer body is inserted therein; a lower hot air device is provided at the back of the lower cooking cavity and a lower fryer body is inserted therein, and the above-mentioned hot air circulation structure is adopted.

[0010] A sunken cavity is provided on the bottom wall of the lower cooking cavity, and a heating tube is arranged in the sunken cavity.

[0011] The lower cooking cavity is provided with a side opening for the pull-out installation of the lower fryer body. The opening of the lower fryer body forms a flanging. Sliding grooves for the flanging to slide into are provided on the left and right side walls of the lower cooking cavity, and the lower fryer body slides into the lower cooking cavity along the sliding grooves.

[0012] The upper cooking cavity is provided with a side opening for the pull-out installation of the upper fryer body. The opening of the upper fryer body forms a flanging. Sliding grooves for the flanging to slide into are provided on the left and right side walls of the upper cooking cavity, and the upper fryer body slides into the upper cooking cavity along the sliding grooves. The left and right side walls of the upper cooking cavity are in contact and fit with the left and right flangings of the upper fryer body through the sliding grooves to seal the left and right sides. The rear flanging of the upper fryer body is in contact and fit with the rear side wall of the upper cooking cavity, so that the upper wall surface of the upper cooking cavity fits the opening of the upper fryer body to form a relatively closed hot air cooking cavity in the upper fryer body.

[0013] The beneficial effects of the present utility model are as follows: The present utility model forms a hot air duct for hot air circulation in the cooking cavity provided with a hot air device at the back, and a wind guiding baffle is arranged at the first ventilation opening for air inlet of the fryer body. The hot air is guided by the wind guiding baffle to a place far away from the hot air device at the back and then enters the fryer body, extending the hot air circulation duct to make the flow area of the duct wider, heating and frying the food materials in the fryer body more evenly, enabling all the food materials in the fryer body to be fully cooked, reducing the existing differential problems, and improving the eating experience; when the above-mentioned hot air circulation structure is applied to the lower cooking cavity of a double-layer control fryer, both the upper and lower cooking cavities have good cooking effects, which is more convenient for users to cook and boil food simultaneously on two lines. Description of the Drawings

[0014] The following further illustrates the present utility model in conjunction with the drawings and embodiments.

[0015] Figure 1 is a disassembled schematic diagram of the double-layer air fryer of the present utility model;

[0016] Figure 2 is an air flow diagram of the hot air duct of the hot air circulation structure of the present utility model;

[0017] Figure 3 is a structural schematic diagram of the back plate and the lower hot air device of the present utility model;

[0018] Figure 4 It is a schematic structural diagram of the main body of the deep fryer of the present utility model;

[0019] Figure 5 It is a cross-sectional view of the double-layer air fryer of the present utility model. Specific embodiments

[0020] Referring to Figures 1 to 3 The hot air circulation structure of an air fryer, including a hot air device and a cooking cavity arranged in the main body 1 of the deep fryer and a deep fryer body loaded into the cooking cavity. A hot air cavity 3 for accommodating the hot air device is provided on the back of the cooking cavity. The hot air cavity 3 and the cooking cavity are separated by a back plate 4. The back plate 4 is provided with an air blowing port 41 and an air return port 42. The side walls of the deep fryer body are respectively provided with a first ventilation port 61 and a second ventilation port 62.

[0021] Among them, the second ventilation port 62 is located on the back side wall of the deep fryer body and is docked with the air return port 42. The hot air device works to blow hot air out from the air blowing port 41 into the cooking cavity, enters the deep fryer body through the first ventilation port 61 on the deep fryer body, and then returns to the hot air cavity 3 through the second ventilation port 62 and the air return port 42, and is then agitated by the hot air device and blown out from the air blowing port 41 again to form a circulating hot air duct. The food is quickly heated by the continuously circulating hot air, improving the cooking efficiency. The first ventilation port 61 is arranged on the left and right side walls of the deep fryer body. The partial wall surfaces of the left and right side walls close to the back side wall are formed with air guiding baffle plates 63. The hot air is guided to a place far from the back hot air device through the air guiding baffle plates 63 and then enters the deep fryer body, extending the hot air circulation duct to make the flow area of the duct wider, heating and frying the ingredients in the deep fryer body more evenly, enabling all the ingredients in the deep fryer body to be fully cooked, reducing the existing differential problems, and improving the eating experience.

[0022] As a preferred solution, the air guiding baffle plates 63 occupy the middle parts of the left and right side walls. A plurality of openings are formed on the left and right side walls to form the first ventilation port 61. The plurality of openings are arranged around the air guiding baffle plates 63, that is, the openings are arranged on the other three sides of the air guiding baffle plates 63 except the side close to the back. The partial first ventilation ports 61 located on the upper and lower sides of the air guiding baffle plates 63 are mainly to provide partial hot air for supplementary heating of the ingredients close to the back, making the overall heating of the ingredients in the deep fryer body more uniform. In order to further match the circulating hot air duct, the hot air device adopts a centrifugal fan with central air suction and peripheral air discharge. The air return port 42 is located in the middle of the back plate 4 and is aligned with the center of the centrifugal fan. The air blowing port 41 is arranged around the air return port 42 and discharges air on the periphery of the cooking cavity, which is more conducive to the air intake from the first ventilation ports on the left and right side walls, thereby ensuring that the air flow in the hot air duct circulates more smoothly.

[0023] After placing the hot air device at the back of the cooking cavity, the space at the top of the cooking cavity can be left empty and utilized. For example, it can be applied to a double-layer air fryer, such as Figure 4 , Figure 5 shown, which includes a fryer main body 1, an upper cooking cavity 21 and a lower cooking cavity 22 arranged in the fryer main body 1. The lower cooking cavity 22 adopts a back hot air device solution, including a lower hot air device 72 and a lower fryer body 6 inserted therein, and adopts the hot air circulation structure of the present utility model; while the upper cooking cavity 21 adopts a conventional top hot air device solution, including an upper hot air device 71 located at the top and an upper fryer body 5 inserted therein and located below the upper hot air device 71.

[0024] As a preferred solution, a sunken cavity 23 is provided on the bottom wall of the lower cooking cavity 22, and a heating tube 8 is arranged in the sunken cavity 23 to supplement the heating of the bottom of the lower fryer body 6, so that the food in the lower fryer body 6 is heated more comprehensively.

[0025] As a preferred solution, the upper cooking cavity 21 is provided with a side opening for the upper fryer body 5 to be pulled and installed. The opening of the upper fryer body 5 forms a flanging. Sliding grooves 24 for the flanging to slide into are provided on the left and right side walls of the upper cooking cavity 21. The upper fryer body 5 slides into the upper cooking cavity 21 along the sliding grooves 24. The left and right side walls of the upper cooking cavity 21 are in contact and fit with the left and right flangings of the upper fryer body 5 through the sliding grooves 24 to seal the left and right sides. The rear flanging of the upper fryer body 5 is in contact and fit with the rear side wall of the upper cooking cavity 21. The fitting part can effectively block the hot air, so that the upper wall surface of the upper cooking cavity 21 fits the opening of the upper fryer body 5 to form a relatively closed hot air cooking cavity in the upper fryer body 5, effectively reducing the hot air from overflowing and blowing on the wall surface of the upper cooking cavity 21 to avoid it being heated to a high temperature, and further reducing the heat temperature diffused outward from the upper cooking cavity 21.

[0026] As a preferred solution, the lower cooking cavity 22 is provided with a side opening for the lower fryer body 6 to be pulled and installed. The opening of the lower fryer body 6 forms a flanging. Sliding grooves 24 for the flanging to slide into are provided on the left and right side walls of the lower cooking cavity 22. The lower fryer body 6 slides into the lower cooking cavity 22 along the sliding grooves 24. Using the sliding grooves 24 to install the lower fryer body 6 can avoid scratching the coating on the inner wall of the lower cooking cavity 22 when the lower fryer body 6 slides into the lower cooking cavity 22, and is convenient for the second ventilation opening 62 of the lower fryer body 6 to be accurately docked with the air return opening 42 on the back plate 4 when the lower fryer body 6 is loaded into the lower cooking cavity 22.

[0027] The double-layer air fryer of the present utility model optimizes the layout of the hot air device. The hot air device of the upper cooking cavity 21 is arranged at the top, enabling the entire lateral space of the upper cooking cavity 21 to be utilized. Subsequently, a larger-sized fryer can be installed to cook larger-sized food ingredients, endowing the present utility model with the advantages of small occupied space of the product size and the ability to cook large-sized food ingredients. The lower cooking cavity 22 adopts the above-mentioned hot air circulation structure, compensating for the heating drawbacks of the hot air device at the back, ensuring good cooking effects in both the upper and lower cooking cavities, and making it more convenient for users to cook and boil food simultaneously on two lines.

Claims

1. A hot air circulation structure of an air fryer, comprising a hot air device and a cooking cavity arranged in a fryer body (1) and a fryer body inserted into the cooking cavity, characterized in that: A hot air cavity (3) for accommodating a hot air device is provided at the back of the cooking cavity, the hot air cavity (3) and the cooking cavity are separated by a back plate (4), an air blowing port (41) and an air return port (42) are provided on the back plate (4), and a first ventilation port (61) and a second ventilation port (62) are provided on the side wall of the fryer body; The second vent (62) is located on the back side wall of the fryer body and is connected to the return air port (42). When the hot air device is in operation, hot air is blown out from the blowing port (41) into the cooking cavity, and then enters the fryer body through the first vent (61) on the fryer body, and then returns to the hot air cavity (3) through the second vent (62) and the return air port (42), and then is blown out from the blowing port (41) again by the hot air device to form a circulating hot air duct; The first ventilation openings (61) are arranged on the left and right side walls of the fryer body, and wind guide shielding plates (63) are formed on the wall surfaces of the left and right side walls close to the back wall.

2. The hot air circulation structure according to claim 1, characterized in that: The center line of the wind guide shielding plate (63) is aligned with the center horizontal line of the left and right side walls, and a plurality of openings are provided on the left and right side walls to form the first ventilation opening (61), and the plurality of openings are arranged around the wind guide shielding plate (63).

3. The hot air circulation structure according to claim 1, characterized in that: The hot air device adopts a centrifugal fan, the return air port (42) is located in the middle of the back plate (4) and is aligned with the center of the centrifugal fan, and the blowing port (41) is arranged around the return air port (42).

4. A double-layer air fryer, characterized in that: It comprises a frying pan body (1), an upper cooking cavity (21) and a lower cooking cavity (22) arranged in the frying pan body (1); An upper hot air device (71) is provided on the top of the upper cooking cavity (21) and an upper frying pan body (5) is inserted therein; The back of the lower cooking cavity (22) is provided with a lower hot air device (72) and a lower fryer body is inserted therein, and the hot air circulation structure described in any one of claims 1 to 3 is adopted.

5. The double-layer air fryer according to claim 4, characterized in that: The bottom wall of the lower cooking cavity (22) is provided with a sunken cavity (23), and the inner plate of the sunken cavity (23) is provided with a heating tube (8).

6. The double-layer air fryer according to claim 4, characterized in that: The lower cooking cavity (22) is provided with a side opening for the lower frying pot body (6) to be pulled out and installed, the opening of the lower frying pot body (6) forms a flange, and the left and right side walls of the lower cooking cavity (22) are provided with sliding grooves (24) for the flange to slide into, and the lower frying pot body (6) slides into the lower cooking cavity (22) along the sliding grooves (24).

7. The double-layer air fryer according to claim 4, characterized in that: The upper cooking cavity (21) is provided with a side opening for the upper frying pot body (5) to be pulled out and installed, the opening of the upper frying pot body (5) forms a flange, and the left and right side walls of the upper cooking cavity (21) are provided with sliding grooves (24) for the flanges to slide into, the upper frying pot body (5) slides into the upper cooking cavity (21) along the sliding grooves (24), the left and right side walls of the upper cooking cavity (21) and the left and right flanges of the upper frying pot body (5) are contacted and fitted through the sliding grooves (24) to close the left and right sides, and the rear flange of the upper frying pot body (5) is contacted and fitted with the rear side wall of the upper cooking cavity (21), so that the upper wall surface of the upper cooking cavity (21) fits the opening of the upper frying pot body (5), so that a relatively closed hot air cooking cavity is formed in the upper frying pot body (5).

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