Air fryer

Abstract

The utility model provides an air fryer, and relates to the technical field of cooking equipment. The air fryer comprises a body, the body comprises a cooking cavity, and a first circulating flow channel is formed in the cooking cavity; and the air inducing assembly is arranged on the body and comprises an air channel, and the air channel communicates with the first circulating flow channel and the space outside the body. Based on the characteristics of the fluid medium, in the flowing process of the fluid medium, the pressure intensity of the area with the large flow speed is small, and due to the existence of the internal circulation air flow, the pressure intensity in the cooking cavity is smaller than the pressure intensity of the external environment of the body. Under the action of the pressure difference, air flow introduced from the outside converges into internal circulation air flow in the intersection area of the air channel and the first circulation flow channel. Therefore, cooking parameters such as humidity and oxygen content in the cooking cavity are adjusted by means of the external air so as to meet the cooking requirements of specific food, and the technical defects that in the prior art, the cooking parameters such as humidity and oxygen content cannot be adjusted, the food cooking requirements cannot be met, and the quality of finished food is poor are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking equipment, in particular to an air fryer. Background Art

[0002] In the related art, the cooking environment inside the cooking device is a closed environment, and the food is cooked into finished food in the closed environment.

[0003] However, in the actual cooking process, since the internal and external air flows cannot be exchanged, cooking parameters such as humidity and oxygen content in the closed environment cannot be adjusted, resulting in technical defects in the cooking equipment that cannot meet food cooking needs and the quality of finished food is poor.

[0004] Therefore, how to overcome the above-mentioned technical defects has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0006] Therefore, the utility model proposes an air fryer.

[0007] In view of this, the air fryer proposed in the utility model includes: a main body, the main body includes a cooking cavity, and a first circulation channel is formed in the cooking cavity; an air induced draft component is arranged on the main body, the air induced draft component includes an air duct, and the air duct connects the first circulation channel and the space outside the main body.

[0008] The present application defines an air fryer, which includes a body, which is a frame structure of the air fryer and is used to position, protect and support other working structures on the air fryer. A cooking cavity is formed in the body, and food is placed in the cooking cavity, and the food is processed into finished food in the cooking cavity.

[0009] The air fryer further comprises an air induction assembly, which is arranged in the body. The air induction assembly comprises an air duct, a first end of which is connected to the cooking cavity, a second end of which extends toward the outer surface of the body and finally connects to the space outside the body, wherein the air duct is at least partially located outside the cooking cavity.

[0010] The inner circulating airflow in the cooking cavity flows along the first circulating flow channel, and the shape of the first circulating flow channel corresponds to the circulating flow trajectory of the inner circulating airflow in the cooking cavity.

[0011] Specifically, the shape of the first circulation flow channel can correspond to the aerodynamic characteristics of the structure driving the internal circulation airflow. For example, an air inlet flow channel that flows from top to bottom along the wall is formed around the fan blades, and a return air flow channel that flows from bottom to top is formed under the fan blades. The air inlet flow channel and the return air flow channel together constitute the first circulation flow channel. During the rotation of the fan blades, the internal circulation airflow first flows along the air inlet flow channel to the food placed at the bottom of the cooking cavity, and then returns to the area where the fan blades are located along the return air flow channel after heating the food, thereby circulating to form an internal circulation airflow that can continuously heat the food.

[0012] On this basis, the first end of the air duct is connected to the first circulation flow channel, and the second end of the air duct extends toward the outer surface of the main body and finally connects to the space outside the main body. Based on the characteristics of the fluid medium, during the flow of the fluid medium, the pressure in the area with a large flow rate is relatively small. Due to the existence of the internal circulation airflow, the pressure in the cooking cavity is relatively small compared to the pressure of the external environment of the main body. Under the action of the pressure difference, the air flow introduced from the outside merges into the internal circulation airflow at the intersection of the air duct and the first circulation flow channel. In this way, the humidity, oxygen content and other cooking parameters in the cooking cavity are adjusted with the help of external air to meet the cooking requirements of specific foods, thereby solving the technical defects in the related technologies that the humidity, oxygen content and other cooking parameters cannot be adjusted, the food cooking requirements cannot be met, and the quality of the finished food is poor.

[0013] At the same time, the first circulation flow channel is naturally formed during the operation of the air fryer according to its heating principle. This embodiment can reasonably utilize the original first circulation flow channel without improving the internal space of the cooking cavity to form a pressure difference that can introduce air flow from the outside, thereby reducing the improvement cost of the air fryer.

[0014] Specifically, the air duct speeds up the speed at which outside air enters the cooking cavity, improves the participation efficiency of outside air in the cooking cavity, increases the aldehyde substances that characterize the aroma of food by about 20%, improves the aroma of food, and reduces the amount of harmful substances generated in food during the cooking process (acrylamide or heterocyclic amines are reduced by about 30%).

[0015] In addition, the air fryer provided by the utility model may also have the following additional technical features:

[0016] In some technical solutions of the present utility model, optionally, one end of the air duct connected to the first circulation flow channel is located in the first circulation flow channel.

[0017] In some technical schemes of the utility model, optionally, the air fryer also includes: an inner pot, arranged in the cooking cavity, the inner pot including a accommodating cavity and an opening; a motor, connected to the main body; fan blades, connected to the motor, located in the cooking cavity, the motor is used to drive the fan blades to rotate and form a first circulation channel.

[0018] In some technical solutions of the present utility model, optionally, the air duct extends on a circle with the rotation axis of the fan blade as the axis.

[0019] In some technical solutions of the present invention, optionally, one end of the air duct connected to the first circulation channel is located on the upwind side of the fan blade, and the end of the air duct connected to the first circulation channel faces the fan blade; or

[0020] One end of the air duct connected to the first circulation channel is located at the downwind side of the fan blade, and one end of the air duct connected to the first circulation channel faces away from the fan blade.

[0021] In some technical solutions of the present invention, optionally, the air duct includes a first air duct and a second air duct, the first end and the second end of the second air duct are both connected to the first circulation flow channel, the first end of the first air duct is connected to the second air duct, and the second end of the first air duct is connected to the outside of the main body.

[0022] In some technical solutions of the present utility model, optionally, the second air duct is located in the cooking cavity, and the extension direction of the second air duct is consistent with the flow direction of the first circulation flow channel.

[0023] In some technical solutions of the present utility model, optionally, a driver is provided in the second air duct, and the driver can drive the air in the second air duct to accelerate the flow.

[0024] In some technical schemes of the utility model, optionally, the air induced component includes: a first pipe, which is arranged on the main body, and the first pipe encloses a first air duct; the first end of the first pipe is connected to the space outside the main body; the second pipe is arranged in the cooking cavity and connected to the first pipe, and the second pipe encloses a second air duct.

[0025] In some technical solutions of the utility model, the air fryer may further include: a fan, which is arranged in the air duct, and the airflow flowing into the air duct can drive the fan to rotate; and a cover, which is arranged on the main body and opposite to the fan.

[0026] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 A schematic structural diagram of an air fryer according to an embodiment of the utility model is shown;

[0029] Figure 2 A schematic structural diagram of an air fryer according to an embodiment of the utility model is shown;

[0030] Figure 3 A schematic structural diagram of an air fryer according to an embodiment of the utility model is shown;

[0031] Figure 4 A schematic structural diagram of an air fryer according to an embodiment of the utility model is shown;

[0032] Figure 5 A schematic structural diagram of an air fryer according to an embodiment of the utility model is shown;

[0033] Figure 6 A schematic structural diagram of an air fryer according to an embodiment of the utility model is shown;

[0034] Figure 7 A schematic structural diagram of an air induction assembly according to an embodiment of the utility model is shown;

[0035] Figure 8 A structural schematic diagram of an air fryer according to an embodiment of the utility model is shown.

[0036] in, Figures 1 to 8 The corresponding relationship between the reference numerals and component names in the figure is:

[0037] 100 air fryer, 110 main body, 1102 cooking cavity, 1104 plane area, 1108 first circulation channel, 120 air induced component, 1202 first air duct, 1204 second air duct, 1206 connecting area, 122 first pipeline, 124 second pipeline, 130 inner pot, 140 fan, 142 motor, 144 fan blades, 150 heating component, 160 base, 1602 installation cavity, 162 cover, 1622 second air inlet, 164 fan. DETAILED DESCRIPTION

[0038] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0040] Refer to the following Figures 1 to 8 An air fryer according to some embodiments of the present invention is described.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, one embodiment of the utility model proposes an air fryer 100, which includes: a main body 110, which includes a cooking cavity 1102; an air induced component 120, which is arranged on the main body 110, and the air induced component 120 includes an air duct, which connects the cooking cavity and the space outside the main body.

[0042] During operation, based on the characteristics of the fluid medium, the pressure in the area with a high flow rate is relatively low during the flow of the fluid medium. Due to the existence of the internal circulating airflow, the position where the air duct is connected to the cooking cavity 1102 is relatively low in pressure compared to the external environment of the body 110. Under the action of the pressure difference, the external gas is pressed into the air duct and forms a new airflow in the air duct. The new airflow merges into the internal circulating airflow and finally flows into the cooking cavity 1102, so that the cooking cavity 1102 can continuously introduce external air during operation. In this way, the humidity, oxygen content and other cooking parameters in the cooking cavity 1102 are adjusted with the help of external air to meet the cooking requirements of specific foods, thereby solving the technical defects in the related technologies that the humidity, oxygen content and other cooking parameters cannot be adjusted, the food cooking requirements cannot be met, and the quality of the finished food is poor.

[0043] Specifically, the air duct speeds up the speed at which outside air enters the cooking cavity 1102, improves the participation efficiency of outside air in the cooking cavity 1102, increases the aldehyde substances that characterize the aroma of food by about 20%, improves the aroma of food, and reduces the amount of harmful substances generated in food during the cooking process (acrylamide or heterocyclic amines are reduced by about 30%).

[0044] in, Figures 1 to 7 In the figure, arrow a shows the flow direction of the air introduced from the outside, and arrow b shows the flow direction of the internal circulating air.

[0045] Specifically, a first circulation channel 1108 is formed in the cooking cavity 1102 , and the air duct connects the first circulation channel 1108 and the space outside the body 110 .

[0046] In this embodiment, the internal circulating airflow in the cooking cavity 1102 flows along the first circulating flow channel 1108 , and the shape of the first circulating flow channel 1108 corresponds to the circulating flow trajectory of the internal circulating airflow in the cooking cavity 1102 .

[0047] Specifically, the shape of the first circulation channel 1108 can correspond to the aerodynamic characteristics of the structure driving the internal circulation airflow. For example, an air inlet channel that flows from top to bottom along the wall is formed around the fan blades 144, and a return air channel that flows from bottom to top is formed below the fan blades 144. The air inlet channel and the return air channel together constitute the first circulation channel 1108. During the rotation of the fan blades 144, the internal circulation airflow first flows along the air inlet channel to the food placed at the bottom of the cooking cavity, and then returns along the return air channel to the area where the fan blades 144 are located after heating the food, thereby circulating to form an internal circulation airflow that can continuously heat the food.

[0048] in, Figure 1 Arrow c shows the air inlet channel, and arrow d shows the air return channel. In this regard, this embodiment does not impose a rigid restriction on the specific shape of the first circulation channel 1108, and the basic requirement that the internal circulation airflow circulates along the first circulation channel 1108 is satisfied.

[0049] On this basis, the first end of the air duct is connected to the first circulation channel 1108, and the second end of the air duct extends toward the outer surface of the body 110, and finally connects to the space outside the body 110. Based on the characteristics of the fluid medium, the pressure in the area with a large flow rate is relatively small during the flow of the fluid medium. Due to the existence of the internal circulation airflow, the pressure in the cooking cavity 1102 is relatively small compared to the pressure of the external environment of the body 110. Under the action of the pressure difference, the air flow introduced from the outside merges into the internal circulation airflow at the intersection of the air duct and the first circulation channel 1108. Thus, the humidity, oxygen content and other cooking parameters in the cooking cavity 1102 are adjusted with the help of external air to meet the cooking requirements of specific food.

[0050] Among them, the first circulation flow channel 1108 is naturally formed during the operation of the air fryer 100 according to its heating principle. This embodiment can reasonably utilize the original first circulation flow channel 1108 without improving the internal space of the cooking cavity 1102 to form a pressure difference that can introduce air flow from the outside, thereby reducing the improvement cost of the air fryer 100.

[0051] like Figure 2 As shown, in some embodiments of the present invention, optionally, one end of the air duct connected to the first circulation flow channel 1108 is located in the first circulation flow channel 1108 .

[0052] In this embodiment, the first end of the air duct includes an air duct opening, and the air flow introduced from the outside is merged into the internal circulation air flow in the cooking cavity 1102 through the air duct opening. The air duct opening extends into the first circulation flow channel 1108, and the air flow introduced from the outside discharged from the air duct opening is directly merged into the internal circulation air flow.

[0053] It can be seen that by setting the air duct opening on the air duct in the first circulation flow channel 1108, the air flow introduced from the outside can be merged into the internal circulation air flow at the first time, so that the air flow introduced from the outside can participate in the cooking cycle in time, thereby improving the regulating effect of the air flow introduced from the outside on the cooking environment in the cooking cavity 1102, thereby achieving the technical effect of improving the quality of the obtained food and improving the cooking performance of the air fryer 100.

[0054] like Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, in some embodiments of the present invention, the air fryer 100 also includes: an inner pot 130, which is arranged in the cooking cavity 1102, and the inner pot 130 includes a accommodating cavity and an opening; a motor 142, which is connected to the body 110; fan blades 144, which are connected to the motor 142 and are located in the cooking cavity 1102, and the motor 142 is used to drive the fan blades 144 to rotate and form a first circulation channel 1108.

[0055] In this embodiment, the air fryer 100 further includes an inner pot 130, which is detachably disposed in the cooking cavity 1102. When the air fryer 100 is an air fryer 100, the inner pot 130 is a removable frying bucket. Food materials are placed in the inner pot 130 and cooked into finished food in the inner pot 130. By providing the inner pot 130, it is possible to provide convenient conditions for users to take and put food, thereby optimizing the user experience.

[0056] The motor 142 is arranged on the body 110, and the output end of the motor 142 is connected to the fan blade 144, and the fan blade 144 is located in the cooking cavity 1102, and the fan blade 144 faces the opening of the inner pot 130. After the motor 142 is turned on, the front side of the rotating fan blade 144 can generate a first airflow that is poured into the inner pot 130. At the same time, the peripheral side of the rotating fan blade 144 can generate a spiral airflow that flows along the side wall of the cooking cavity 1102. The motion trajectory of the first airflow and the spiral airflow corresponds to the first circulation flow channel 1108, and the air duct opening can be arranged on the peripheral side of the fan blade 144 so that the air flow introduced from the outside can be directly merged into the spiral airflow. The air duct opening can also be arranged on the front side of the fan blade 144 so that the air flow introduced from the outside can be directly merged into the first airflow, thereby optimizing the structure of the air induced component 120, improving the air intake rate of the air induced component 120, broadening the functional coverage of the air fryer 100, and improving the quality of the cooked food.

[0057] like Figure 1 , Figure 2 and Figure 3As shown, in some embodiments of the present invention, optionally, the air duct extends on a circle with the rotation axis of the fan blade 144 as the axis; or, one end of the air duct connected to the first circulation channel 1108 is located on the upwind side of the fan blade 144, and one end of the air duct connected to the first circulation channel 1108 faces the fan blade 144; or, one end of the air duct connected to the first circulation channel 1108 is located on the leeward side of the fan blade 144, and one end of the air duct connected to the first circulation channel 1108 faces away from the fan blade 144.

[0058] In this embodiment, part of the air duct in the cooking cavity 1102 extends on a circle with the rotation axis of the fan blade 144 as the axis, that is, part of the air duct in the cooking cavity 1102 is arranged around the fan blade 144. By arranging the air duct around the fan blade 144, it is convenient for the internal circulation airflow flowing along the wall of the air inlet flow channel to enter the air duct, so that the high-speed airflow flowing around the fan blade in the air duct forms an internal and external pressure difference, and finally forms an external air flow with the help of the internal and external pressure difference, thereby improving the regulating effect of the external air flow on the cooking environment.

[0059] Specifically, the air duct opening includes an air inlet and an air outlet, and the internal circulating airflow enters the air duct through the air inlet and returns to the cooking cavity through the air outlet. The air inlet can be arranged on the air outlet side of the fan blade 144 or the air return side of the fan blade 144. When the air inlet is arranged on the air outlet side of the fan blade 144, the air inlet faces away from the fan blade 144. When the air inlet is arranged on the air return side of the fan blade 144, the air inlet faces toward the fan blade 144, thereby reducing the difficulty of the airflow introduced from the outside to merge into the first airflow and increasing the introduction rate of the airflow introduced from the outside.

[0060] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments of the utility model, optionally, the air duct includes a first air duct and a second air duct, the first end and the second end of the second air duct are both connected to the cooking cavity, the first end of the first air duct is connected to the second air duct, and the second end of the first air duct is connected to the outside of the body.

[0061] In this embodiment, the air fryer 100 includes: a body 110, the body 110 includes a cooking cavity 1102; an air induction assembly 120, which is arranged on the body 110, and the air induction assembly 120 includes a first air duct 1202 and a second air duct 1204; the second air duct 1204 is located in the cooking cavity 1102, the first end and the second end of the second air duct 1204 are both connected to the cooking cavity 1102, the first air duct 1202 is at least partially located outside the cooking cavity 1102, the first end of the first air duct 1202 is connected to the second air duct 1204, and the second end of the first air duct 1202 is connected to the outside of the body 110. The present application defines an air fryer 100, the air fryer 100 includes a body 110, the body 110 is a frame structure of the air fryer 100, and is used to position, protect and support other working structures on the air fryer 100. A cooking cavity 1102 is formed in the body 110 , and food materials are placed in the cooking cavity 1102 , and the food materials are processed into finished food in the cooking cavity 1102 .

[0062] The air induction assembly 120 includes a first air duct 1202 and a second air duct 1204 , wherein a first end of the second air duct 1204 is in communication with the cooking cavity 1102 , and a second end of the second air duct 1204 is also in communication with the cooking cavity 1102 , wherein the second air duct 1204 is arranged inside the cooking cavity 1102 . The first end of the first air duct 1202 is connected to the middle section of the second air duct 1204, and the second end of the first air duct 1202 extends toward the outer surface of the main body 110 and is finally connected to the space outside the main body 110, wherein the first air duct 1202 is at least partially located outside the cooking cavity 1102, and when the second air duct 1204 is tightly fitted to the inner wall of the cooking cavity 1102, the first air duct 1202 is located as a whole outside the cooking cavity 1102, and when the second air duct 1204 is away from the inner wall of the cooking cavity 1102, part of the first air duct 1202 extends into the cooking cavity 1102 and is connected to the second air duct 1204, and the remaining part of the first air duct 1202 is located outside the cooking cavity 1102 and extends toward the outer surface of the main body 110. That is, the air induced component 120 is composed of two inner and outer air ducts, the first air duct 1202 and the second air duct 1204 . The second air duct 1204 connects two different areas in the cooking cavity 1102 , and the first air duct 1202 connects the cooking cavity 1102 and the outside of the air fryer 100 .

[0063] During operation, the gas flowing in the cooking cavity 1102 flows into the second air duct 1204 from one of the first end and the second end of the second air duct 1204, and finally flows out of the second air duct 1204 from the other end of the first end and the second end, so as to form an internal circulation airflow in the second air duct 1204. Based on the characteristics of the fluid medium, the pressure of the area with a large flow velocity is relatively small during the flow of the fluid medium. Due to the existence of the internal circulation airflow, the pressure in the second flow channel is relatively small compared with the pressure of the external environment of the body 110. Under the action of the pressure difference, the external gas is pressed into the first air duct 1202, and forms an external air flow in the first air duct 1202, and the external air flow flows from the second end of the first air duct 1202 to the first end of the first air duct 1202. After entering the second air duct 1204, the external air flow merges into the internal circulation airflow, and finally flows into the cooking cavity 1102, so that the cooking cavity 1102 can continuously introduce external air during operation. Thus, cooking parameters such as humidity and oxygen content in the cooking cavity 1102 are adjusted with the help of external air to meet the cooking requirements of specific food, thereby solving the technical defects in the related technology that cooking parameters such as humidity and oxygen content cannot be adjusted, cannot meet food cooking requirements, and have poor quality of finished food.

[0064] Specifically, in this embodiment, a flow channel for high-speed circulation of the internal circulating airflow is directly constructed in the cooking cavity 1102 through the second air duct 1204. The shape and trajectory of the second air duct 1204 are not affected by the aerodynamic characteristics of the fan blades. The second air duct 1204 of a corresponding shape can be selected according to actual pressure difference requirements and space layout requirements.

[0065] In some embodiments of the present invention, optionally, the second air duct 1204 is located in the cooking cavity 1102 , and an extension direction of the second air duct 1204 is consistent with a flow direction of the first circulation flow channel 1108 .

[0066] In this embodiment, the second air duct 1204 is disposed inside the cooking cavity 1102 , and both ends of the second air duct 1204 are connected to the first circulation channel 1108 .

[0067] On this basis, the extension direction of the second air duct 1204 is consistent with the flow direction of the first circulation flow duct 1108, so that the flow direction of the internal circulation airflow entering the second air duct 1204 is consistent with the extension direction of the second air duct 1204, so as to reduce the resistance of the internal circulation airflow in the second air duct 1204, increase the flow rate of the internal circulation airflow in the second air duct 1204, and then increase the pressure difference between the first air duct and the second air duct 1204, and increase the inflow speed of the air flow introduced from the outside.

[0068] In some embodiments of the present invention, optionally, a driver is provided in the second air duct 1204 , and the driver can drive the air in the second air duct 1204 to accelerate the flow.

[0069] By providing a driver, the flow rate of the air flow introduced from the outside in the second air duct 1204 can be increased, thereby increasing the inflow rate of the air flow introduced from the outside.

[0070] like Figure 7 In some embodiments of the present invention, optionally, the air induction component 120 further includes: a second pipe 124 , which is disposed in the cooking cavity 1102 and communicates with the first pipe 122 , and the second pipe 124 encloses a second air duct 1204 .

[0071] In this embodiment, the air induction assembly 120 further includes a second pipe 124, which is disposed inside the cooking cavity 1102 and is spaced apart from the inner wall of the cooking cavity 1102. The first end of the first pipe 122 extends from the external air inlet into the cooking cavity 1102 and is connected to the middle section of the second pipe 124. The first pipe 122 can provide positioning and support for the second pipe 124, and a bracket connecting the inner wall of the cooking cavity 1102 and the second pipe 124 can be provided to position and support the second pipe 124 through the bracket.

[0072] By building an independent second pipe 124 inside the cooking cavity 1102, the second air duct 1204 can be brought close to the area with a higher flow rate in the cooking cavity 1102, thereby increasing the flow rate of the internal circulation airflow in the second air duct 1204, correspondingly reducing the pressure in the second air duct 1204, and increasing the pressure difference between the second air duct 1204 and the external environment. Thus, by increasing the pressure difference between the inside and outside, the flow rate of the air flow introduced from the outside is increased, so as to increase the air introduction rate of the cooking cavity 1102 and improve the effect of regulating the oxygen content or humidity in the cooking cavity 1102. This achieves the technical effect of optimizing the structure of the air induced component 120, increasing the air intake rate of the air induced component 120, broadening the functional coverage of the air fryer 100, and improving the quality of the cooked food.

[0073] like Figure 5 and Figure 6 As shown, in some embodiments of the present invention, optionally, the air induction assembly 120 further includes: an air duct plate connected to the body 110 , and the air duct plate and the inner wall of the cooking cavity 1102 enclose a second air duct 1204 .

[0074] In this embodiment, the air induction assembly 120 further includes an air duct plate, which is disposed in the cooking cavity 1102 and connected to the inner wall of the cooking cavity 1102. After the air duct plate is assembled, the air duct plate and the inner wall of the cooking cavity 1102 jointly enclose a second air duct 1204. In addition, the air duct plate blocks the external air inlet on the inner wall of the cooking cavity 1102 to ensure that the external air flow discharged from the first pipe 122 can flow into the second air duct 1204.

[0075] By providing the air duct plate, the inner wall of the cooking cavity 1102 can be reasonably utilized, thereby simplifying the structure of the air induction assembly 120 and reducing the cost of the air induction assembly 120. In addition, the assembly can be completed by fixing the air duct plate to the inner wall of the cooking cavity 1102, eliminating the need for independent positioning and supporting structures, thereby achieving the technical effect of reducing the difficulty of assembling the air induction assembly 120.

[0076] like Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments of the present invention, optionally, the inner wall of the cooking cavity 1102 includes a plane area 1104 , and the air duct plate and the plane area 1104 enclose a second air duct 1204 .

[0077] In this embodiment, the inner wall of the cooking cavity 1102 includes a plane area 1104 and a curved area. Specifically, part of the plane area 1104 is distributed on the top of the cooking cavity 1102, and another part of the plane area 1104 is distributed on the side of the cooking cavity 1102. The curved area transitionally connects the plane areas 1104 to enclose the cooking cavity 1102.

[0078] On this basis, the air duct plate is connected to the plane area 1104. Compared with the method of connecting the air duct plate to the curved area, connecting the air duct plate to the plane area 1104 can improve the fit between the air duct plate and the inner wall of the cooking cavity 1102, so as to reduce the difficulty of sealing between the air duct plate and the inner wall of the cooking cavity 1102, and prevent the gas in the second air duct 1204 from leaking out through the gap between the air duct plate and the inner wall of the cooking cavity 1102, thereby ensuring the strength of the internal circulation airflow and the internal and external pressure difference.

[0079] At the same time, connecting the air duct plate with the plane area 1104 is also helpful to simplify the structure of the air duct plate, thereby reducing the process complexity and processing cost of the air duct plate.

[0080] In addition, by enclosing the second air duct 1204 with the plane area 1104, it is helpful to reduce the resistance of the second air duct 1204 to the internal circulation airflow, so as to further increase the flow rate of the internal circulation airflow and increase the internal and external pressure difference.

[0081] like Figure 5 and Figure 6 As shown, in some embodiments of the present invention, optionally, a partial area of ​​the air duct plate is bent in a direction away from the inner wall of the cooking cavity 1102 .

[0082] In this embodiment, a part of the air duct plate is in an arc shape, and the arc-shaped area is bent in a direction away from the inner wall of the cooking cavity 1102 to expand the volume of the second flow channel enclosed between the air duct plate and the inner wall of the cooking cavity 1102, so as to ensure the flow rate of the internal circulation airflow. The shape of the remaining part of the air duct plate is adapted to the shape of the inner wall of the cooking cavity 1102. When the air duct plate is arranged in the plane area 1104 of the inner wall of the cooking cavity 1102, this part of the air duct plate is a flat plate. When the air duct plate is arranged in the curved surface area of ​​the inner wall of the cooking cavity 1102, this part of the air duct plate is an arc plate to ensure that this part of the air duct plate can fit the inner wall of the cooking cavity 1102 and avoid the gap connecting the second air duct 1204 and the cooking cavity 1102. In this way, the technical effect of ensuring the effect of introducing air from the outside and improving the ability to adjust the internal environment of the cooking cavity 1102 is achieved.

[0083] like Figure 7 As shown, in some embodiments of the present invention, optionally, on the second air duct 1204, an area connected to the first end of the first air duct 1202 is a connecting area 1206, a flow area of ​​the first end of the second air duct 1204 is larger than a flow area of ​​the connecting area 1206, and / or a flow area of ​​the second end of the second air duct 1204 is larger than a flow area of ​​the connecting area 1206.

[0084] In this embodiment, the area in the second air duct 1204 that intersects with the first air duct 1202 is positioned as a connected area 1206, and the air flow introduced from the outside passes through the first end of the first air duct 1202 and flows into the connected area 1206. On this basis, the flow area of ​​the first end of the second air duct 1204 is S1, the flow area of ​​the second end of the second air duct 1204 is S2, and the flow area of ​​the connected area 1206 is S3. Among them, S1, S2 and S3 need to meet the following conditions: S3<S1, and / or S3<S2.

[0085] Specifically, when the gas flow direction in the cooking cavity 1102 is relatively stable and the internal circulation airflow can be guaranteed to enter the second air duct 1204 from the first end, S3<S1 is satisfied. Correspondingly, when the internal circulation airflow can be guaranteed to enter the second air duct 1204 from the second end, S3<S2 is satisfied. When the gas flow direction in the cooking cavity 1102 is unstable and the inflow end of the internal circulation airflow cannot be guaranteed, both S3<S1 and S3<S2 must be satisfied. Among them, the connecting area 1206 has a certain extension length, that is, the connecting area 1206 includes multiple S3s, and the multiple S3s all need to meet the above conditions.

[0086] By limiting the above-mentioned flow area relationship, the internal circulation airflow will pass through at least one section with a reduced flow area in the flow direction. According to the continuity principle of the fluid medium, when the internal circulation airflow flows to the connecting area 1206 with a smaller flow area, the flow speed will increase, the corresponding pressure of the connecting area 1206 will decrease, and the pressure difference between the connecting area 1206 and the external environment will increase. Thus, by increasing the internal and external pressure difference, the flow rate of the airflow introduced from the outside is increased, so as to increase the air introduction rate of the cooking cavity 1102 and improve the effect of regulating the oxygen content or humidity in the cooking cavity 1102. In this way, the technical effect of optimizing the structure of the induced draft component 120, increasing the air intake rate of the induced draft component 120, broadening the functional coverage of the air fryer 100, and improving the quality of the cooked food is achieved.

[0087] like Figure 7 As shown, in some embodiments of the present invention, optionally, in the direction from the first end of the second air duct 1204 to the connecting area 1206, the flow area of ​​the second air duct 1204 gradually decreases; in the direction from the second end of the second air duct 1204 to the connecting area 1206, the flow area of ​​the second air duct 1204 gradually decreases.

[0088] In this embodiment, the shape of the second air duct 1204 is defined. Specifically, in the direction from the first end of the second air duct 1204 to the connecting area 1206, the flow area of ​​the second air duct 1204 gradually decreases, so as to form an air duct with a gradually decreasing cross-sectional area between the first end of the second air duct 1204 and the connecting area 1206. After the gas in the cooking cavity 1102 enters the second air duct 1204 from the first end of the second air duct 1204, the gradually decreasing flow area can provide continuous acceleration for the airflow, so as to increase the flow rate of the internal circulation airflow in the connecting area 1206, thereby reducing the pressure in the connecting area 1206 and increasing the pressure difference between the connecting area 1206 and the external environment.

[0089] Specifically, in the direction from the second end of the second air duct 1204 to the connecting area 1206, the flow area of ​​the second air duct 1204 is gradually reduced, so as to form an air duct with a gradually reduced cross-sectional area between the second end of the second air duct 1204 and the connecting area 1206. After the gas in the cooking cavity 1102 enters the second air duct 1204 from the second end of the second air duct 1204, the gradually reduced flow area can provide continuous acceleration for the airflow, so as to increase the flow rate of the internal circulation airflow in the connecting area 1206, thereby reducing the pressure in the connecting area 1206 and increasing the pressure difference between the connecting area 1206 and the external environment.

[0090] Thus, the velocity of the air flow introduced from the outside is increased by increasing the pressure difference between the inside and outside, thereby increasing the air introduction rate of the cooking cavity 1102 and improving the ability of the draft assembly 120 to adjust the oxygen content or humidity in the cooking cavity 1102. This achieves the technical effect of optimizing the structure of the draft assembly 120, increasing the air intake rate of the draft assembly 120, broadening the functional coverage of the air fryer 100, and improving the quality of the cooked food.

[0091] like Figure 7 As shown, in some embodiments of the present invention, optionally, the flow area of ​​the second end of the first air duct 1202 is greater than the flow area of ​​the first end of the first air duct 1202 .

[0092] In this embodiment, the flow area of ​​the second end of the first air duct 1202 is S4, that is, the cross-sectional area of ​​the inlet of the first air duct 1202 is S4. Correspondingly, the flow area of ​​the first end of the first air duct 1202 is S5, that is, the cross-sectional area of ​​the outlet of the first air duct 1202 is S5. Among them, S4 and S5 need to meet the following condition: S4>S5.

[0093] By limiting the above-mentioned flow area relationship, the air flow introduced from the outside will pass through at least one section with a reduced flow area in the flow direction. According to the continuity principle of the fluid medium, when the air flow introduced from the outside flows to the section with a reduced flow area, the flow speed will increase, so as to increase the air introduction rate of the cooking cavity 1102, improve the effect of regulating the oxygen content or humidity in the cooking cavity 1102, and solve the technical defects of low ventilation efficiency and food quality guarantee existing in the related technology. Then, the technical effect of optimizing the structure of the induced draft component 120, increasing the air intake rate of the induced draft component 120, broadening the functional coverage of the air fryer 100, and improving the quality of the cooked food is achieved.

[0094] like Figure 7 As shown, in some embodiments of the present invention, optionally, in the direction from the second end of the first air duct 1202 to the first end of the first air duct 1202 , the flow area of ​​the first air duct 1202 gradually decreases.

[0095] In this embodiment, the shape of the first air duct 1202 is limited. Specifically, in the direction from the second end of the first air duct 1202 to the first end of the first air duct 1202, the flow area of ​​the first air duct 1202 gradually decreases to form the first air duct 1202 with a gradually decreasing cross-sectional area. That is, in the flow direction of the air flow introduced from the outside, the cross-sectional area of ​​the first air duct 1202 gradually decreases. After the gas in the external environment is pressed into the first air duct 1202 by the pressure difference, the gradually decreasing flow area can provide continuous acceleration for the air flow introduced from the outside, so as to increase the flow rate of the air flow introduced from the outside in the first air duct 1202.

[0096] Thereby, the air introduction rate of the cooking cavity 1102 is increased, and the ability of the draft assembly 120 to adjust the oxygen content or humidity in the cooking cavity 1102 is increased. This achieves the technical effect of optimizing the structure of the draft assembly 120, increasing the air intake rate of the draft assembly 120, broadening the functional coverage of the air fryer 100, and improving the quality of the cooked food.

[0097] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments of the present invention, optionally, the fan 140 includes: a motor 142, connected to the body 110; a fan blade 144, connected to the motor 142, and the motor 142 is used to drive the fan blade 144 to rotate; wherein the second air duct 1204 extends on a circle with the rotating shaft of the fan blade 144 as the axis.

[0098] In this embodiment, the fan 140 includes a fan blade 144, which is located in the cooking cavity 1102 and faces the opening of the inner pot 130. After the fan 140 is turned on, the front side of the rotating fan blade 144 can generate a first airflow that is poured into the inner pot 130. At the same time, the peripheral side of the rotating fan blade 144 can generate a spiral airflow that flows along the side wall of the cooking cavity 1102, and this part of the spiral airflow can actively flow into the second air duct 1204 and cooperate with the first air duct 1202 to introduce the outside air.

[0099] On this basis, the second air duct 1204 is arranged on the circumference of the fan blade 144, and the second air duct 1204 extends on a circle with the rotating shaft of the fan blade 144 as the axis, or the air outlet side of the fan blade faces the air inlet end of the second air duct 1204, or the air return side of the fan blade faces the air inlet end of the second air duct 1204, so that the extension direction of the second air duct 1204 matches the flow direction of the spiral airflow on the circumference of the fan blade 144, thereby reducing the resistance of the second air duct 1204 to the internal circulation airflow, so as to increase the flow rate of the internal circulation airflow in the second air duct 1204, reduce the pressure in the second air duct 1204, and then increase the external air introduction effect by increasing the internal and external pressure difference. And finally achieve the technical effect of optimizing the structure of the induced draft component 120, increasing the air intake rate of the induced draft component 120, broadening the functional coverage of the air fryer 100, and improving the quality of the cooked food.

[0100] like Figure 1 As shown, in some embodiments of the present invention, optionally, the air fryer 100 further includes: a heating component 150 , which is disposed on the body 110 and located between the fan 140 and the inner pot 130 .

[0101] In this embodiment, the air fryer 100 further includes a heating component 150, which is disposed in the cooking cavity 1102 and between the fan 140 and the inner pot 130. After the heating component 150 is turned on, the first airflow flowing to the inner pot 130 and / or the fan blades 144 on the fan 140 can be heated to make the first airflow become a high-temperature airflow, thereby baking the outer surface of the food through the high-temperature airflow to obtain a golden color and crispy texture. This achieves the technical effect of improving the quality of the cooked food and enhancing the user experience.

[0102] Specifically, the heating component 150 includes a heating pipe, which is coiled and avoids the front area of ​​the fan 140 to prevent the heating component 150 from affecting the flow of the first airflow.

[0103] The heating component 150 also includes an electromagnetic heating element, which can generate an electric field when turned on. The magnetic fan blades 144 are heated up under the action of the electric field to directly blow out a first airflow with a higher temperature.

[0104] In some embodiments of the present invention, the air fryer 100 further includes a fan 164, which is disposed in the first air duct 1202, and the airflow flowing to the first air duct 1202 can drive the fan 164 to rotate. By providing an observable fan 164, the externalization effect of the incoming airflow can be achieved, so that the user can judge whether there is an external airflow by observing whether the fan 164 rotates, and judge the strength of the external airflow by observing the rotation speed of the fan 164, providing convenient conditions for the user to control the air fryer 100.

[0105] In some embodiments, the air fryer 100 further includes a transparent cover 162, which is disposed on the body 110 and is arranged opposite to the fan 164. In other words, the transparent cover 162 can not only play a role in waterproofing and dustproofing, but also play a role in displaying the fan 164.

[0106] like Figure 1 and Figure 4 As shown, in some embodiments of the present invention, optionally, the air fryer 100 also includes: a seat 160, which is disposed on the main body 110; a cover 162, which covers the seat 160, and the seat 160 and the cover 162 enclose an installation cavity 1602, and the installation cavity 1602 is connected to the second end of the first air duct 1202; a fan 164, which is disposed in the installation cavity 1602, and the airflow flowing to the first air duct 1202 can drive the fan 164 to rotate.

[0107] In this embodiment, the air fryer 100 further includes a seat 160, a cover 162 and a fan 164. The seat 160 is embedded on the outer surface of the body 110 so that the seat 160 is partially exposed outside the body 110. A through hole is provided at the bottom of the seat 160, which is connected to the second end of the first air duct 1202. The fan 164 is rotatably connected to the seat 160. The cover 162 covers the seat 160. After the cover 162 is assembled, the cover 162 and the seat 160 enclose an installation cavity 1602, which is connected to the first air duct 1202 through the through hole. The cover 162 is also provided with a second air inlet 1622, which is connected to the installation cavity 1602. During the cooking process, the air flow introduced from the outside that is pressed in by the pressure difference between the inside and the outside first enters the installation cavity 1602 through the second air inlet 1622 and flows toward the through hole. During this process, the air flow introduced from the outside can drive the fan 164 to rotate. The faster the flow rate of the air flow introduced from the outside, the faster the rotation speed of the fan 164. The user can observe the status of the internal fan 164 through the air inlet on the cover body 162. Afterwards, the air flow introduced from the outside enters the cooking cavity 1102 via the through hole, the first air duct 1202 and the second air duct 1204 to meet the air replenishment demand of the cooking cavity 1102.

[0108] By setting an observable fan 164, the externalization effect of the incoming air flow can be achieved, so that the user can judge whether there is an external air flow by observing whether the fan 164 is rotating, and judge the strength of the external air flow by observing the rotation speed of the fan 164, which provides convenient conditions for the user to control the air fryer 100. In addition, compared with the solution of setting an air volume sensor to detect the air flow introduced from the outside, the solution of the externalized fan 164 proposed in this application can reduce the structural complexity and production cost of the air fryer 100 on the basis of also meeting the feedback requirements of the incoming air flow. In addition, the rotating fan 164 can also enhance the fun of the air fryer 100 and further enhance the user experience.

[0109] In some embodiments of the present invention, optionally, the cover 162 is a light-transmitting cover.

[0110] In this embodiment, the cover 162 is made of a light-transmitting material to produce a light-transmitting cover.

[0111] By providing a light-transmitting cover, the user can observe the status of the fan 164 inside the cover 162 through the cover 162 , thereby improving the externalization effect of the fan 164 on the air flow introduced from the outside and reducing the difficulty for the user to observe the fan 164 .

[0112] Specifically, the cover 162 can be made of materials such as glass and plastic.

[0113] It should be clarified that in the claims, specification and drawings of the present invention, the term "multiple" refers to two or more than two. Unless otherwise clearly defined, the orientation or position relationship indicated by the terms "upper" and "lower" is based on the orientation or position relationship shown in the drawings, which is only for the purpose of more conveniently describing the present invention and making the description process easier, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation, so these descriptions cannot be understood as limitations on the present invention; the terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0114] In the claims, specification and drawings of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification and drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0115] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air fryer, characterized in that: include: A body, wherein the body includes a cooking cavity, and a first circulation channel is formed in the cooking cavity; The air induction component is arranged on the main body, and the air induction component includes an air duct, and the air duct communicates with the first circulation flow channel and the space outside the main body.

2. The air fryer according to claim 1, characterized in that: One end of the air duct connected to the first circulation flow channel is located in the first circulation flow channel.

3. The air fryer according to claim 1, characterized in that: Also includes: An inner pot is arranged in the cooking cavity, and the inner pot comprises a containing cavity and an opening; A motor connected to the body; The fan blades are connected to the motor and are located in the cooking cavity. The motor is used to drive the fan blades to rotate and form the first circulation channel.

4. The air fryer according to claim 3, characterized in that: One end of the air duct connected to the first circulation channel extends on a circle with the rotation axis of the fan blade as an axis.

5. The air fryer according to claim 3, characterized in that: One end of the air duct connected to the first circulation channel is located on the upwind side of the fan blade, and one end of the air duct connected to the first circulation channel faces the fan blade; or One end of the air duct connected to the first circulation channel is located at the downwind side of the fan blade, and one end of the air duct connected to the first circulation channel faces away from the fan blade.

6. The air fryer according to claim 1, characterized in that: The air duct includes a first air duct and a second air duct, the first end and the second end of the second air duct are both connected to the first circulation flow channel, the first end of the first air duct is connected to the second air duct, and the second end of the first air duct is connected to the outside of the body.

7. The air fryer according to claim 6, characterized in that: The second air duct is located in the cooking cavity, and an extension direction of the second air duct is consistent with a flow direction of the first circulation flow channel.

8. The air fryer according to claim 7, characterized in that: A driver is arranged in the second air duct, and the driver can drive the air in the second air duct to flow faster.

9. The air fryer according to claim 8, characterized in that: The air induction component comprises: A first pipe is provided on the body, and the first pipe encloses the first air duct; The first end of the first pipe is in communication with the space outside the body; The second pipe is arranged in the cooking cavity and communicated with the first pipe. The second pipe encloses the second air duct.

10. The air fryer according to any one of claims 1 to 9, characterized in that: Also includes: A fan is arranged in the air duct, and the airflow flowing into the air duct can drive the fan to rotate; The cover body is arranged on the main body and is arranged opposite to the fan.

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