Hot air gathering structure of air fryer

Abstract

The hot air gathering structure comprises a machine body, an inner container and a hot air cavity are arranged in the machine body, the hot air cavity is located on the rear side of the inner container and communicated with the inner container, the front side of the inner container is open, a pot body is detachably arranged on the inner container in a push-pull mode, the top of the pot body is open, the pot body and the top of the inner container are arranged in a spaced mode, and an upper air inlet area is formed. The pot body is communicated with the hot air cavity during assembly, a ventilation area is arranged on the rear wall of the pot body, and a plurality of ventilation holes communicated with the inner cavity of the pot body and the hot air cavity are evenly distributed in the ventilation area. A U-shaped baffle is arranged at a cavity opening of the hot air cavity, the U-shaped baffle and the rear wall of the pot body are arranged in a spaced mode, a ventilation cavity is defined in the middle of the U-shaped baffle, and the ventilation cavity is right opposite to the ventilation area; according to the air fryer, the U-shaped baffle is additionally arranged between the hot air cavity and the inner container cavity, and hot air is gathered together through the U-shaped baffle and then enters the fryer body through the ventilation holes, so that enough air volume and heat energy are generated, and food can be fully baked.

Description

Technical Field

[0001] This utility model relates to the field of air fryers, specifically a hot air gathering structure for an air fryer. Background Technology

[0002] On September 12, 2024, the applicant submitted a Chinese application (No. 202422247720.X) for a three-dimensional heating structure for an air fryer. This improved air fryer structure effectively solves problems such as uneven heating of food, overcooking of the food surface, and affecting the cooking effect. However, during implementation, it was found that the hot air blown out of the hot air chamber diffuses after entering the inner pot, affecting the air volume and the amount of hot air gathered in the pot. Moreover, some of the hot air and water vapor from the food escape from the periphery of the pot, thus affecting the user's experience. Therefore, further improvements to the air fryer structure are needed. Utility Model Content

[0003] The purpose of this invention is to solve the aforementioned problems and provide a simple and reasonable hot air gathering structure for an air fryer.

[0004] An air fryer hot air gathering structure includes a body, within which an inner liner and a hot air chamber are disposed. The hot air chamber is located at the rear of the inner liner and the two are interconnected. The front of the inner liner is open and a pot body is detachably attached via a push-pull mechanism. The top of the pot body is open and spaced apart from the top of the inner liner, forming an upper air intake area. The pot body is interconnected with the hot air chamber during assembly. A ventilation area is provided on the rear wall of the pot body, and multiple ventilation holes communicating with the inner cavity of the pot body and the hot air chamber are evenly distributed on the ventilation area. A U-shaped baffle is provided at the opening of the hot air chamber, spaced apart from the rear wall of the pot body, and the middle of the U-shaped baffle defines a ventilation cavity, which is directly opposite the ventilation area.

[0005] The objective of this utility model can also be achieved by the following technical measures:

[0006] As a more specific embodiment, the upper part of the hot air cavity opening is connected to the upper air inlet area, the U-shaped baffle is set at the lower part of the hot air cavity opening, and the U-shaped baffle has a "U" shape structure. The middle of the U-shaped baffle defines a ventilation cavity, and the ventilation cavity and the ventilation area are arranged opposite to each other.

[0007] As a further embodiment, the pot body is equipped with a receiving component for receiving food. During assembly, the receiving component divides the interior of the pot body into a cooking area and a lower air intake area. The upper air intake area, cooking area, and lower air intake area are interconnected, and the hot air blown out of the hot air cavity passes through the ventilation cavity and ventilation holes before entering the cooking area and the lower air intake area simultaneously.

[0008] As a further embodiment, a reflector is connected to the rear side of the inner liner, the reflector defining a hot air cavity, the U-shaped baffle is fastened to the front side of the reflector, and a hot air device for generating hot air is provided inside the hot air cavity.

[0009] As a further embodiment, the hot air device includes a drive motor, circulating fan blades, and a hollowed-out heating element. The circulating fan blades and the heating element are coaxially arranged inside the hot air cavity, with the circulating fan blades located on the side away from the cavity opening and the heating element located on the side closer to the cavity opening. The circulating fan blades are fixed on the rotating shaft of the drive motor.

[0010] As a further embodiment, a motor mounting cover is connected to the rear side of the reflector. The reflector is embedded in the motor mounting cover and defines a heat dissipation cavity between the reflector and the motor mounting cover. The drive motor is fixedly connected to the rear side of the motor mounting cover, and its rotating shaft passes through the heat dissipation cavity and the hot air cavity and is connected to the circulating fan blades. The heat dissipation cavity is provided with heat dissipation fan blades, which are fixed on the rotating shaft.

[0011] As a further embodiment, the top of the inner liner is stretched upward to form an air intake hood, which is used to define the upper air intake area. In addition to the walls of the hood facing the hot air cavity, each of the air intake hoods forms an air guide surface. The hot air in the upper air intake area is introduced into the cooking area through each air guide surface, and the air guide surface is arc-shaped or inclined.

[0012] As a further embodiment, the heating element is a spiral heating tube, and the heating tube is provided with several heating tube support members connected to the reflector; the heating tube support member is made of a sheet metal part folded in half, wherein the folded end is clamped to the heating tube body, and the other end is provided with a connection hole for fastening to the reflector.

[0013] As a further embodiment, the receiving component is a receiving plate with several ventilation holes formed by stamping, and / or the receiving component is a receiving bracket, which is formed by welding multiple frame strips together and has multiple perforated areas.

[0014] As a further embodiment, the inner wall of the pot is provided with a support portion, the receiving plate and / or the side of the receiving bracket are supported on the support portion and suspended in the pot, or the bottom of the receiving plate and / or the receiving bracket is provided with a support foot and is suspended in the pot through the support foot.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model discloses a hot air gathering structure for an air fryer. A U-shaped baffle is added between the hot air chamber and the inner cavity. The U-shaped baffle 4 prevents hot air from blowing into the gaps between the left, right, and bottom sides of the fryer body 3 and the inner cavity 2. The hot air is gathered through the ventilation cavity 401 of the U-shaped baffle 4 and then enters the fryer body through the ventilation holes, thus generating sufficient airflow and heat to thoroughly cook the food. Furthermore, gathering the hot air into the fryer body prevents hot air and water vapor from escaping from the periphery of the fryer body, thus avoiding any impact on the user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the air fryer in this utility model.

[0019] Figure 3 This is a schematic diagram of the U-shaped baffle and the ventilation area in this utility model.

[0020] Figure 4 This is a schematic diagram of the exploded structure of the air fryer in this utility model.

[0021] Figure 5 This is a schematic diagram of the inner liner structure in this utility model.

[0022] Figure 6 This is a schematic diagram of the U-shaped baffle and hot air cavity structure in this utility model.

[0023] Figure 7 This is a schematic diagram of the heating element support structure in this utility model. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] See Figures 1 to 7 The diagram illustrates a hot air gathering structure for an air fryer, comprising a body 1. The body 1 contains an inner liner 2 and a hot air chamber A. The hot air chamber A is located behind the inner liner 2 and is interconnected with it. The inner liner 2 has an open front side and a detachable pot body 3. The top of the pot body 3 is open and spaced apart from the top of the inner liner 2, forming an upper air intake area B. The pot body 3 is interconnected with the hot air chamber A during assembly. The rear wall of the pot body 3 has a ventilation area C, on which multiple ventilation holes 301 are evenly distributed, connecting the inner cavity of the pot body 3 and the hot air chamber A. A U-shaped baffle 4 is provided at the opening A1 of the hot air chamber A. The U-shaped baffle 4 is spaced apart from the rear wall of the pot body 3, and the middle of the U-shaped baffle 4 defines a ventilation cavity 401, which is directly opposite the ventilation area C.

[0026] This air fryer incorporates a U-shaped baffle 4 between the hot air chamber A and the inner cavity. The U-shaped baffle 4 prevents hot air from blowing into the gaps between the left, right, and bottom sides of the fryer body 3 and the inner cavity 2. The hot air is gathered through the ventilation cavity 401 of the U-shaped baffle 4 and then enters the fryer body 3 through the ventilation holes 301, thereby generating sufficient airflow and heat to thoroughly cook the food. In addition, concentrating the hot air inside the fryer body 3 prevents hot air and water vapor from escaping from the periphery of the fryer body 3, which would affect the user's experience.

[0027] The upper part of the opening A1 of the hot air chamber A is connected to the upper air inlet area B. The U-shaped baffle 4 is set at the lower part of the opening A1 of the hot air chamber A, and the U-shaped baffle 4 has a "U" shape. The middle of the U-shaped baffle 4 defines a ventilation cavity 401, and the ventilation cavity 401 is directly opposite to the ventilation area C.

[0028] The U-shaped baffle 4 of this structure will not block the upper part of the cavity A1, allowing the hot air blown out of the hot air cavity to enter the upper air inlet area B. It can also ensure that the hot air blown out from the middle position enters the ventilation hole 301, and can block the gap between the pot body 3 and the inner liner 2, reducing the waste caused by hot air entering the gap and affecting the heating efficiency.

[0029] The pot body 3 is equipped with a receiving component 5 for receiving food. When assembled, the receiving component 5 divides the interior of the pot body 3 into a cooking area D and a lower air intake area E. The upper air intake area B, the cooking area D, and the lower air intake area E are interconnected. The hot air blown out of the hot air cavity A passes through the ventilation cavity 401 and the ventilation hole 301 and enters the cooking area D and the lower air intake area E at the same time.

[0030] The hot air located in the upper air intake area B, cooking area D and lower air intake area E can be evenly diffused throughout the entire pot body 3 and form three-dimensional heating on any surface of the food, thereby effectively solving the problem of uneven heating of different parts of the food and poor cooking effect, so as to improve the cooking effect of the food, reduce cooking time and have strong practicality.

[0031] The inner liner 2 is connected to a reflector 6 at the rear, which defines a hot air chamber A. The U-shaped baffle 4 is fastened to the front of the reflector 6, and a hot air device for generating hot air is provided in the hot air chamber A. The reflector 6 can radiate heat towards the pot body 3, improving the heating efficiency of the pot body 3 and reducing heat transfer into the machine body 1, thus avoiding high temperature affecting the service life of the electrical components.

[0032] The hot air device includes a drive motor 7, a circulating fan blade 8, and a hollowed-out heating element. The circulating fan blade 8 and the heating element are coaxially arranged in the hot air cavity A, with the circulating fan blade 8 located on the side away from the cavity opening A1 and the heating element located on the side close to the cavity opening A1. The circulating fan blade 8 is fixed on the rotating shaft of the drive motor 7.

[0033] The reflector 6 is connected to a motor mounting cover 10 on its rear side. The reflector 6 is embedded in the motor mounting cover 10 and defines a heat dissipation cavity F between the reflector 6 and the motor mounting cover 10. The drive motor 7 is fixedly connected to the rear side of the motor mounting cover 10, and its rotating shaft passes through the heat dissipation cavity F and the hot air cavity A and is connected to the circulating fan blade 8. The heat dissipation cavity F is provided with a heat dissipation fan blade 11, which is fixed on the rotating shaft.

[0034] When the drive motor 7 is working, it simultaneously drives the circulating fan blade 8 and the cooling fan blade 11 to rotate. When the circulating fan blade 8 rotates, it blows the heat generated by the heating element from the hot air cavity A through the ventilation cavity 401 and the ventilation hole 301 into the cooking area D and the lower air intake area E, and then enters the upper air intake area B through the upper part of the cavity A1. The hot air from the upper air intake area B and the lower air intake area E then converges into the cooking area D to heat the food in three dimensions. When the cooling fan blade 11 rotates, it blows the heat transferred from the hot air cavity A to the heat dissipation cavity F to dissipate heat from the entire hot air device and ensure that it can work normally.

[0035] Specifically, the rear side of the motor mounting cover 10 is hollowed out, and an internal cavity is formed between the motor mounting cover 10 and the body 1. The drive motor 7 is placed in the internal cavity, and the outer shell part of the body 1 has heat dissipation holes 101 corresponding to the internal cavity. Heat is discharged from the body 1 through the internal cavity and the heat dissipation holes 101.

[0036] The top of the inner liner 2 is stretched upward to form an air intake hood 201, which defines the upper air intake area B. Except for the walls of the air intake hood 201 that face the hot air chamber A, each wall of the air intake hood 201 forms a guide surface 202. The hot air in the upper air intake area B is guided into the cooking area D through each guide surface 202, and the guide surface 202 is arc-shaped or inclined. The cooperation between the air intake hood 201 and the guide surface 202 helps the hot air blown horizontally into the upper air intake area B to be guided downward into the cooking area D, which can improve the circulation efficiency of the hot air.

[0037] The heating element is a spiral heating tube 9, and the heating tube 9 is provided with several heating tube support members 12 connected to the reflector 6. The heating tube support member 12 is made of a sheet metal part folded in half, with the folded end clamped to the body of the heating tube 9, and the other end having a connection hole 121 for fastening to the reflector 6. The end of the heating tube 9 is connected to the reflector 6, while the main body of the heating tube 9 is suspended in the hot air cavity A. The heating tube support member 12 can support the heating tube 9, reduce the pressure on the end of the heating tube 9, and help the heating tube 9 to be stably positioned in the middle of the hot air cavity A.

[0038] In this embodiment, the receiving component 5 includes a receiving plate 51 and a receiving bracket 52. The receiving plate 51 has several ventilation holes 511 formed by stamping. The receiving bracket 52 is formed by welding multiple frame strips together and has multiple perforated areas 53. The receiving plate 51 and the receiving bracket 52 of this structure have a small obstruction area and will not affect the hot air from the upper air intake area B or the lower air intake area E into the cooking area D.

[0039] The receiving plate 51 and the receiving bracket 52 can not only support food, but also independently separate the lower air intake area E and the cooking area D.

[0040] In this embodiment, the inner wall of the pot body 3 is provided with a support portion 31, and the receiving plate 51 and / or the receiving bracket 52 are supported on the support portion 31 and suspended inside the pot body 3.

[0041] In other embodiments, the bottom of the receiving plate 51 and / or the receiving bracket 52 is provided with support feet, and the support feet suspend the plate inside the pot body 3.

[0042] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A hot air gathering structure for an air fryer, comprising a body (1), wherein an inner liner (2) and a hot air chamber (A) are provided inside the body (1), the hot air chamber (A) is located on the rear side of the inner liner (2) and the two are interconnected, the front side of the inner liner (2) is open and a pot body (3) is detachably mounted by a push-pull mechanism, the top of the pot body (3) is open and spaced apart from the top of the inner liner (2), forming an upper air intake area (B), the pot body (3) being interconnected with the hot air chamber (A) during assembly, characterized in that: The rear wall of the pot body (3) is provided with a ventilation area (C), and a plurality of ventilation holes (301) are evenly distributed on the ventilation area (C) to connect the inner cavity of the pot body (3) and the hot air cavity (A); the opening (A1) of the hot air cavity (A) is provided with a U-shaped baffle (4), the U-shaped baffle (4) is spaced apart from the rear wall of the pot body (3), and the middle of the U-shaped baffle (4) defines a ventilation cavity (401), and the ventilation cavity (401) is directly opposite the ventilation area (C).

2. The hot air gathering structure for an air fryer according to claim 1, characterized in that: The upper part of the opening (A1) of the hot air cavity (A) is connected to the upper air inlet area (B), and the U-shaped baffle (4) is set at the lower part of the opening (A1) of the hot air cavity (A).

3. The hot air gathering structure for an air fryer according to claim 1, characterized in that: The pot body (3) is equipped with a receiving component (5) for receiving food. When the receiving component (5) is assembled, it divides the inside of the pot body (3) into a cooking area (D) and a lower air intake area (E). The upper air intake area (B), the cooking area (D) and the lower air intake area (E) are interconnected. The hot air blown out by the hot air cavity (A) passes through the ventilation cavity (401) and the ventilation hole (301) and enters the cooking area (D) and the lower air intake area (E) at the same time.

4. The hot air gathering structure for an air fryer according to claim 1, characterized in that: The inner liner (2) is connected to a reflector (6) at the rear, the reflector (6) defines a hot air cavity (A), the U-shaped baffle (4) is fastened to the front of the reflector (6), and a hot air device for generating hot air is provided in the hot air cavity (A).

5. The hot air gathering structure for an air fryer according to claim 4, characterized in that: The hot air device includes a drive motor (7), a circulating fan blade (8), and a hollow heating element. The circulating fan blade (8) and the heating element are coaxially arranged in the hot air cavity (A), with the circulating fan blade (8) located on the side away from the cavity opening (A1) and the heating element located on the side close to the cavity opening (A1). The circulating fan blade (8) is fixed on the rotating shaft of the drive motor (7).

6. The hot air gathering structure for an air fryer according to claim 5, characterized in that: The reflector (6) is connected to a motor mounting cover (10) on the rear side. The reflector (6) is embedded in the motor mounting cover (10) and defines a heat dissipation cavity (F) between the reflector (6) and the motor mounting cover (10). The drive motor (7) is fixedly connected to the rear side of the motor mounting cover (10), and its shaft passes through the heat dissipation cavity (F) and the hot air cavity (A) and is connected to the circulating fan blade (8). The heat dissipation cavity (F) is provided with a heat dissipation fan blade (11), which is fixed on the shaft.

7. The hot air gathering structure for an air fryer according to claim 1, characterized in that: The top of the inner liner (2) is stretched upward to form an air intake hood (201). The air intake hood (201) is used to define the upper air intake area (B). The air intake hood (201) forms air guide surfaces (202) on each wall of the hood (201) except for the wall facing the hot air cavity (A). The hot air in the upper air intake area (B) is introduced into the cooking area (D) through each air guide surface (202). The air guide surface (202) is arc-shaped or inclined.

8. The hot air gathering structure for an air fryer according to claim 5, characterized in that: The heating element is a spiral heating tube (9), and the heating tube (9) is provided with several heating tube support members (12) connected to the reflector (6); the heating tube support member (12) is a sheet metal part folded in half, wherein the folded end is clamped to the body of the heating tube (9), and the other end is provided with a connection hole (121) for fastening to the reflector (6).

9. The hot air gathering structure for an air fryer according to claim 3, characterized in that: The receiving part (5) is a receiving plate (51) and has several ventilation holes (511) formed thereon by stamping, and / or the receiving part (5) is a receiving bracket (52) and the receiving bracket (52) is formed by welding multiple frame strips together and has multiple open areas (53) on it.

10. The hot air gathering structure of an air fryer according to claim 9, characterized in that: The inner wall of the pot body (3) is provided with a support part (31), the side of the receiving plate (51) and / or the receiving bracket (52) is supported on the support part (31) and suspended in the pot body (3), or the bottom of the receiving plate (51) and / or the receiving bracket (52) is provided with a support foot and is suspended in the pot body (3) by the support foot.

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