Air outlet structure of air fryer

Abstract

The utility model discloses an air outlet structure of air fryer, including shell and the inner bag of setting in the shell, and the clearance between inner bag and shell inner wall has and constitutes cooling cavity, is equipped with air inlet, hot air outlet, cold air outlet on the shell, and the inner bag lateral wall is equipped with hot air overflow outlet, and hot air overflow outlet is linked with hot air outlet, the motor is equipped in the shell still, it further includes: first fan, sets up in the inner bag and is connected with the motor, second fan, sets up in the cooling cavity and is connected with the motor, and second fan is located the top of inner bag, is used for blowing air upward and makes the airflow in cooling cavity blow to cold air outlet, the confluence piece has the confluence channel and the confluence outlet that communicates with confluence channel, and hot air outlet and cold air outlet all communicate with confluence channel, and cold air outlet is located hot air outlet one end near the confluence outlet, and the average temperature of the effluent gas has been effectively reduced.

Description

Technical Field

[0001] This application relates to the field of air fryer technology, specifically to an air outlet structure for an air fryer. Background Technology

[0002] An air fryer, as a highly efficient and convenient modern kitchen appliance, works by using rapidly circulating hot air to heat and cook food, simulating frying while significantly reducing the use of oil. It mainly consists of a heating element (usually a heating tube at the top or bottom), a high-speed fan, a cooking chamber (frying basket), and a control system. During operation, the heating element generates high temperatures, the fan powerfully blows hot air onto the food surface, and the airflow is circulated through the chamber's design, achieving even heating and a crispy texture.

[0003] To achieve rapid cooking, air fryers need to generate and maintain high temperatures within a relatively compact cavity. A high-speed fan powerfully drives the circulation of this hot air. Once the hot air has finished heating the food, a portion of the hot air, mixed with the moisture evaporated from the food, needs to be expelled from the cavity through a specially designed exhaust vent to maintain airflow balance and remove excess moisture. The expelled hot air is concentrated at the exhaust vent and is very hot. Accidentally touching the hot exhaust vent during operation or shortly after cooking can easily cause burns. The continuously high-temperature exhaust environment can also cause thermal stress on plastic parts and electronic components near the exhaust vent, accelerating their aging, embrittlement, or failure, thus affecting the lifespan and reliability of the equipment. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an air fryer that can effectively reduce the temperature of the gas discharged from the exhaust port, and the technical solution adopted includes:

[0005] An air venting structure for an air fryer includes an outer shell and an inner liner disposed within the outer shell, wherein a gap exists between the inner liner and the inner wall of the outer shell to form a cooling cavity. The outer shell has an air inlet, a hot air outlet, and a cold air outlet. The side wall of the inner liner has a hot air overflow outlet, which communicates with the hot air outlet. A motor is housed within the outer shell. The air fryer also includes:

[0006] A first fan is installed in the inner liner and connected to a motor. The first fan is used to blow air upwards and also to blow hot air from the inner liner out of the hot air outlet.

[0007] A second fan is installed inside the cooling chamber and connected to a motor. The second fan is located above the inner liner and is used to blow air upwards and direct the airflow in the cooling chamber toward the cold air outlet.

[0008] A manifold is installed on the housing. The manifold has a manifold channel and a manifold outlet communicating with the manifold channel. Both the hot air outlet and the cold air outlet are communicating with the manifold channel, and the cold air outlet is located at the end of the hot air outlet closer to the manifold outlet.

[0009] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: it further includes an air guide cover, which is installed and covers the upper end of the inner liner. The side wall of the air guide cover is provided with an air inlet and an air outlet, and the air inlet is located at the lower end of the air guide cover, and the air outlet is located above the air inlet and opposite to the cold air outlet.

[0010] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the motor is set at the upper end of the inner liner.

[0011] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the motor is a dual-axis motor.

[0012] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the air guide shroud is provided with side air guide plates on both sides of the air outlet, and the ends of the two side air guide plates away from the air guide shroud are respectively located on both sides of the cold air outlet.

[0013] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: it further includes a lower air guide plate, one end of which extends to the lower part near the cold air outlet, and the other end extends to the lower part near the second fan.

[0014] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the air inlet is disposed on the side wall of the outer shell, and the air inlet and the air entrance are distributed opposite to each other.

[0015] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the inner liner is connected to the outer shell and there is a gap between the inner liner and the bottom wall of the outer shell, and the bottom wall of the outer shell is also provided with a heat dissipation vent below the inner liner.

[0016] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the heat dissipation port is connected to the interior of the cooling cavity.

[0017] One embodiment of this utility model solves its technical problem by having a cold air outlet with a larger air outlet area than the hot air outlet. This effectively reduces the temperature of the airflow discharged from the confluence port.

[0018] The beneficial effects of this utility model are as follows: Since the cold air outlet is located at the end of the hot air outlet near the confluence outlet, the high-temperature airflow will pass through the cold air outlet when it flows in the confluence channel, so that the high-temperature airflow mixes with the normal-temperature airflow flowing out from the cold air outlet before flowing out from the confluence outlet. This is conducive to more thorough mixing of the hot and cold airflows before they flow out of the confluence outlet, avoiding the stratification of hot and cold air that leads to the residue of local high-temperature points, effectively reducing the average temperature of the gas finally discharged from the confluence outlet, and solving the risk of burns caused by the high temperature of the exhaust port and the hidden danger of heat damage to surrounding items.

[0019] On the other hand, the second fan blows air upwards, following the natural upward trend of hot air, carrying away the heat accumulated at the top of the inner liner and the motor, controlling the motor temperature rise, and helping to extend the motor's service life. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of the air fryer described in the embodiments of this application;

[0022] Figure 2 This is an exploded view of the air fryer described in the embodiments of this application.

[0023] Figure 3 This is a schematic diagram of the installation structure of the air guide shroud described in the embodiment of this application;

[0024] Figure 4 This is a side sectional view of the air fryer described in the embodiments of this application;

[0025] Figure 5 This is a front sectional view of the air fryer described in the embodiments of this application. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0029] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Reference Figure 1-5 This application proposes an embodiment of an air fryer with an air outlet structure, characterized in that it includes an outer shell 10 and an inner liner 20 disposed within the outer shell 10, wherein the inner liner 20 and the inner wall of the outer shell 10 have a gap forming a cooling chamber; the outer shell 10 is provided with an air inlet 11, a hot air outlet 12, and a cold air outlet 13; the side wall of the inner liner 20 is provided with a hot air overflow outlet 21, and the hot air overflow outlet 21 communicates with the hot air outlet 12; a motor 30 is disposed within the outer shell 10, and the air fryer further includes:

[0031] A first fan 40 is disposed in the inner liner 20 and connected to a motor 30. The first fan 40 is used to blow air upward and to blow hot air from the inner liner 20 out of the hot air overflow port 21.

[0032] The second fan 50 is installed inside the cooling chamber and connected to the motor 30. The second fan 50 is located above the inner liner 20 and is used to blow air upwards and direct the airflow in the cooling chamber toward the cold air outlet 13.

[0033] A manifold 60 is installed on the housing 10. The manifold 60 has a manifold channel 61 and a manifold outlet 62 communicating with the manifold channel 61. The hot air outlet 12 and the cold air outlet 13 are both communicating with the manifold channel 61, and the cold air outlet 13 is located at the end of the hot air outlet 12 near the manifold outlet 62.

[0034] Those skilled in the art will understand that the inner liner 20 is also equipped with a heating element, and the outer shell 10 and the inner liner 20 are provided with a cooking inlet communicating with the interior of the inner liner 20, the cooking inlet being for inserting a cooking chamber containing food. In this application, when the air fryer is running, the heating element is activated, and the motor 30 is activated to drive the first fan 40 and the second fan 50 to rotate;

[0035] When the first fan 40 rotates, it draws air upward, causing the hot air in the middle of the inner liner 20 to flow upward and then flow downward along the top and side walls of the inner liner 20. It then flows upward along the bottom of the inner liner 20 and converges in the middle of the inner liner 20, thus passing through the through hole at the lower end of the cooking chamber from bottom to top and acting on the food to heat it. When the pressure inside the cooking chamber is too high, some of the high-temperature airflow will overflow from the hot air overflow port 21 as it flows along the side wall of the inner liner 20, and flow into the confluence member 60 through the hot air outlet 12.

[0036] When the second fan 50 rotates, the second fan 50 draws room temperature airflow from the outside into the cooling chamber through the air inlet 11 and makes the room temperature airflow flow upward. Since the motors 30 that drive the first fan 40 and the second fan 50 to rotate are both installed above the inner liner 20, the second fan 50 blows air upward so that it can remove the heat from the surface of the motor 30 and blow the room temperature airflow to the cold air outlet 13 and flow into the manifold 60.

[0037] Since the cold air outlet 13 is located at the end of the hot air outlet 12 near the confluence outlet 62, the high-temperature airflow will pass through the cold air outlet 13 when it flows in the confluence channel 61. This allows the high-temperature airflow to mix with the normal-temperature airflow flowing out of the cold air outlet 13 before flowing out of the confluence outlet 62. This facilitates more thorough mixing of the hot and cold airflows before they flow out of the confluence outlet 62, avoids the stratification of hot and cold air leading to residual high-temperature points in some areas, effectively reduces the average temperature of the gas finally discharged from the confluence outlet 62, and solves the risk of burns caused by the high temperature of the exhaust port and the potential for heat damage to surrounding items.

[0038] On the other hand, the second fan 50 blows air upwards, following the natural upward trend of hot air, carrying away the heat accumulated at the top of the inner liner 20 and the motor 30, controlling the temperature rise of the motor 30, and helping to extend the service life of the motor 30.

[0039] The inner liner 20 is provided with a hot air guide between the hot air overflow port 21 and the hot air outlet 12. The hot air guide is used to guide the high-temperature airflow discharged from the hot air overflow port 21 to the hot air outlet 12.

[0040] Preferably, the system also includes an air guide shroud 70, which is installed and covers the upper end of the inner liner 20. The side wall of the air guide shroud 70 is provided with an air inlet 71 and an air outlet 72. The air inlet 71 is located at the lower end of the air guide shroud 70, and the air outlet 72 is located above the air inlet 71 and opposite to the cold air outlet 13.

[0041] Following the natural upward trend of hot air and the effect of the second fan 50 on the airflow, the ambient temperature airflow flows from bottom to top. The air inlet 71 is set at the lower end of the air guide hood 70 so that the ambient temperature airflow flows into the air guide hood 70 from a position near the upper end of the inner liner and flows towards the air outlet 72 inside the air guide hood 70. The air outlet 72 on the side wall of the air guide hood 70 is directly opposite the cold air outlet 13, which forcibly guides the airflow to the direction of the cold air outlet 13, avoids disorderly diffusion of airflow, and ensures that the high temperature gas is accurately delivered to the air outlet 72.

[0042] Preferably, the motor 30 is located at the upper end of the inner liner 20.

[0043] The air guide shroud 70 forms a semi-enclosed channel, forcing hot air to exit through a designated outlet, reducing heat accumulation on the motor 30, and effectively improving the long-term reliability of the motor 30, the first fan 40, and the overhead wiring. In this embodiment, the motor 30 is a dual-shaft motor, enabling simultaneous driving of the first fan 40 and the second fan 50.

[0044] Preferably, the air guide shroud 70 is provided with side air guide plates 73 on both sides of the air outlet 72, and the ends of the two side air guide plates 73 away from the air guide shroud 70 are respectively located on both sides of the cold air outlet 13.

[0045] The two side guide vanes 73 form a semi-enclosed flow channel, so that when the second fan 50 rotates, it pushes the airflow into the flow channel and then out through the cold air outlet 13, effectively guiding the flow of normal temperature airflow.

[0046] Furthermore, it also includes a lower air guide plate 74, one end of which extends below the cold air outlet 13 and the other end extends below the second fan 50.

[0047] Furthermore, the lower air guide plate 74 prevents the ambient temperature airflow blown out by the second fan 50 from flowing directly down the inner wall of the outer casing 10 and dissipating, and forces the airflow of the second fan 50 to the cold air outlet 13.

[0048] Referring to the accompanying drawings, the air inlet 11 is disposed on the side wall of the outer casing 10, and the air inlet 11 is distributed opposite to the air inlet 71. This shortens the air intake path of the second fan 50, allowing cold air to enter directly from the side wall and directly target the air inlet 71 at the lower part of the air guide shroud 70, avoiding the energy loss required by traditional bottom air intake. The air flowing in from the air inlet 11 forms an air curtain, which separates the upper and lower spaces within the outer casing 10, preventing ambient temperature airflow from flowing downwards.

[0049] In this embodiment, the inner liner 20 is connected to the outer shell 10 and there is a gap between the inner liner 20 and the bottom wall of the outer shell 10. The bottom wall of the outer shell 10 inside the inner liner 20 is also provided with a heating component. The bottom wall of the outer shell 10 is also provided with a heat dissipation vent 14 below the heating component. The heat generated by heating in the inner liner can be discharged through the heat dissipation vent 14 to avoid high temperature accumulation at the bottom of the inner liner.

[0050] Preferably, the heat dissipation vent 14 is connected to the interior of the cooling cavity. Referring to the attached drawings, the lower end of the inner liner 20 is installed inside the outer shell 10 by a bracket. The bracket is provided with ventilation holes to connect the cooling cavity and the heat dissipation vent 14, so that the cooling cavity can also dissipate heat through the heat dissipation vent 14.

[0051] Preferably, the outlet area of ​​the cold air outlet 13 is larger than that of the hot air outlet 12. This effectively reduces the temperature of the airflow discharged from the confluence.

[0052] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. An air outlet structure of an air fryer, characterized in that, The system includes an outer shell (10) and an inner liner (20) disposed within the outer shell (10), wherein the inner liner (20) and the inner wall of the outer shell (10) have a gap forming a cooling chamber. The outer shell (10) is provided with an air inlet (11), a hot air outlet (12), and a cold air outlet (13). The side wall of the inner liner (20) is provided with a hot air overflow outlet (21), and the hot air overflow outlet (21) is connected to the hot air outlet (12). The outer shell (10) is provided with a motor (30), and the system also includes: A first fan (40) is installed in the inner liner (20) and connected to a motor (30). The first fan (40) is used to blow air upwards and also to blow hot air from the inner liner (20) out of the hot air outlet (21). The second fan (50) is located inside the cooling chamber and connected to the motor (30). The second fan (50) is located above the inner liner (20) and is used to blow air upwards and direct the airflow in the cooling chamber toward the cold air outlet (13). A manifold (60) is mounted on the housing (10). The manifold (60) has a manifold channel (61) and a manifold outlet (62) connected to the manifold channel (61). The hot air outlet (12) and the cold air outlet (13) are both connected to the manifold channel (61), and the cold air outlet (13) is located at the end of the hot air outlet (12) near the manifold outlet (62).

2. The air outlet structure of the air fryer according to claim 1, characterized in that, It also includes an air guide shroud (70), which is installed and covers the upper end of the inner liner (20). The side wall of the air guide shroud (70) is provided with an air inlet (71) and an air outlet (72), and the air inlet (71) is located at the lower end of the air guide shroud (70), and the air outlet (72) is located above the air inlet (71) and opposite to the cold air outlet (13).

3. The air outlet structure of the air fryer according to claim 2, characterized in that, The motor (30) is located at the upper end of the inner liner (20).

4. The air outlet structure of the air fryer according to claim 3, characterized in that, The motor (30) is a dual-axis motor.

5. The air outlet structure of the air fryer according to claim 2, characterized in that, The air guide shroud (70) has side air guide plates (73) on both sides of the air outlet (72), and the ends of the two side air guide plates (73) away from the air guide shroud (70) are located on both sides of the cold air outlet (13).

6. The air outlet structure of the air fryer according to claim 5, characterized in that, It also includes a lower air guide plate (74), one end of which extends below the cold air outlet (13) and the other end extends below the second fan (50).

7. The air outlet structure of the air fryer according to claim 2, characterized in that, The air inlet (11) is located on the side wall of the outer casing (10), and the air inlet (11) is distributed opposite to the air inlet (71).

8. The air outlet structure of the air fryer according to claim 1, characterized in that, The inner liner (20) is connected to the outer shell (10) and there is a gap between the inner liner (20) and the bottom wall of the outer shell (10). The bottom wall of the outer shell (10) is also provided with a heat dissipation vent (14) below the inner liner (20).

9. The air outlet structure of the air fryer according to claim 8, characterized in that, The heat dissipation port (14) is connected to the interior of the cooling cavity.

10. The air outlet structure of the air fryer according to any one of claims 1-9, characterized in that, The air outlet area of ​​the cold air outlet (13) is larger than that of the hot air outlet (12).

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