Air fryer capable of switching between tender and crisp cooking modes

Abstract

The utility model discloses a kind of air fryer that can realize mutual switching of tender roasting mode and crisp roasting mode, including shell (11), with air outlet (111);Inner container (12), be located in the shell (11) inside, with the cooking cavity (120) of top opening;And heat shield (13), be located in the shell (11) inside, and cover and be arranged in the top of the inner container (12), the heat shield (13) with steam exhaust (131) on it, the steam exhaust (131) and the air outlet (111) between intercommunication have steam exhaust passage (143);It is characterized by: still include the valve assembly (4) for opening or closing the steam exhaust (131). Compared with prior art, the air fryer of the utility model can realize mutual switching of tender roasting mode and crisp roasting mode.

Description

Technical Field

[0001] This utility model relates to the field of kitchen equipment technology, specifically to an air fryer that can switch between a tender roasting mode and a crisp roasting mode. Background Technology

[0002] An air fryer is a new type of household appliance that uses high-speed, high-temperature air circulation technology to fry food. Compared with traditional electric fryers, the food it produces can have 80% less oil. It is easy to clean in daily use, and is both safe and economical, making it very popular.

[0003] Existing air fryers generally consist of a main body, which contains a cooking chamber. The main body is equipped with a hot air assembly that supplies high-temperature air into the cooking chamber. The cooking chamber contains a pot for holding food. The high-temperature hot air generated when the hot air assembly is working heats the food in the pot. The hot air comes into full contact with the food, and the food surface loses moisture quickly in an instant, or the food itself produces oil, resulting in a crispy texture that resembles deep-frying.

[0004] For example, the applicant's earlier Chinese patent application number CN201922244675.1, entitled "Air Fryer with Conducive Shell Cooling", discloses an air fryer that significantly reduces the temperature rise of the air fryer shell by introducing air at the top and bottom and exhausting air in the middle, thereby rapidly cooling the entire shell.

[0005] However, in the above solution, the central exhaust vent is always open, which can only achieve the crispy roasting mode and cannot achieve the tender roasting mode. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an air fryer that can switch between a tender roasting mode and a crisp roasting mode, in view of the current state of the technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: an air fryer that can switch between a tender roasting mode and a crispy roasting mode, including...

[0008] The outer casing has an exhaust vent;

[0009] The inner pot, disposed within the outer shell, has a cooking cavity with a top opening; and

[0010] A heat insulation cover is disposed inside the outer shell and covers the top of the inner liner. The heat insulation cover has a vent, and a venting channel is connected between the vent and the exhaust port.

[0011] Its characteristic feature is that it further includes a valve assembly for opening or closing the exhaust port.

[0012] To facilitate the opening and closing of the exhaust port, the valve assembly includes:

[0013] The base is fixed relative to the heat insulation cover;

[0014] The valve plate is rotatably connected to the base via a rotating shaft; and

[0015] A driving component is used to drive the rotating shaft to rotate so that the valve plate covers or removes the cover from the exhaust port.

[0016] In order to promptly shut off the drive unit so that the valve plate remains in the position covering the exhaust port, the air fryer has a control board for controlling the opening and closing of the drive unit and a control switch for monitoring whether the valve plate covers the exhaust port. The control switch is electrically connected to the control board. When the valve plate covers the exhaust port, the control switch controls the drive unit to shut off via the control board.

[0017] To monitor whether the valve plate is covering the exhaust port, the control switch includes:

[0018] A trigger rod, with its first end mounted on the rotating shaft and its second end having a trigger portion; and

[0019] A micro switch, fixed relative to the heat shield, has contacts corresponding to the triggering part;

[0020] With the valve plate covering the exhaust port, the trigger part presses the contact point to cause the control board to control the drive to close.

[0021] To facilitate cooling of the interior of the casing, it also includes...

[0022] An air guide shroud, disposed within the outer casing and covering the heat insulation shroud, has an air outlet, with the exhaust port directly opposite the air outlet; and the air outlet directly opposite the exhaust port.

[0023] An air hood is disposed inside the outer casing and connected between the air outlet and the exhaust outlet.

[0024] To prevent the cooling airflow and the hot airflow from interfering with each other, the air outlet hood has a partition extending into the air guide hood. This partition divides the space between the air guide hood and the heat insulation hood into a cold air chamber and the exhaust passage.

[0025] In order to bake the food inside the cooking cavity, a hot air assembly is also included for blowing hot air into the cooking cavity.

[0026] To deliver hot air into the cooking cavity and facilitate the timely exhaust of airflow from the cold air cavity, the hot air assembly includes:

[0027] Heating elements are disposed within the aforementioned heat insulation cover; and

[0028] A heat circulation fan is disposed inside the heat insulation cover and located above the heating element.

[0029] A cooling fan is located inside the aforementioned cold air cavity;

[0030] The motor is located inside the housing and mounted on top of the air guide shroud. Its power output shaft extends downwards into the cold air cavity and the heat insulation shroud in sequence and is connected to the cooling fan and the heat circulation fan.

[0031] To facilitate the handling of food, a pot body is also included. The front sides of the outer shell and the inner pot have corresponding openings, and the pot body can be pulled back and forth through the openings to enter and exit the cooking cavity.

[0032] Compared with the prior art, the advantages of this utility model are as follows: by setting the valve assembly to open or close the vent, when the vent is open, the water vapor in the cooking cavity can enter the vent channel through the vent and finally be discharged through the vent, thus achieving crispy roasting of the food. When the vent is closed, the water vapor in the cooking cavity cannot be discharged through the vent, thus achieving tender roasting of the food. In this way, the tender roasting mode and the crispy roasting mode can be switched by switching the valve assembly. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of an embodiment of the air fryer of the present invention, which can switch between tender roasting mode and crisp roasting mode, with the exhaust port open.

[0034] Figure 2 for Figure 1 A longitudinal sectional view;

[0035] Figure 3 for Figure 2 A three-dimensional structural diagram of the heat insulation cover, valve assembly, and control switch;

[0036] Figure 4 for Figure 2 Longitudinal sectional view after the central exhaust port is switched to the closed state;

[0037] Figure 5 for Figure 4 A three-dimensional structural diagram of the heat insulation cover, valve assembly, and control switch. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0040] like Figures 1 to 5 The image shows a preferred embodiment of the air fryer of this invention, which allows for switching between a tender roasting mode and a crisp roasting mode. The air fryer includes an organic body 1, a pot body 2, a hot air assembly 3, a valve assembly 4, and a control switch 5.

[0041] The body 1 includes an outer shell 11, an inner liner 12, a heat insulation cover 13, an air guide cover 14, and an air outlet cover 15.

[0042] Specifically, an exhaust vent 111 is provided on the rear side of the upper part of the outer casing 11;

[0043] The inner pot 12 is located in the lower part of the inner cavity of the outer shell 11. The inner pot 12 has a cooking cavity 120 with a top opening inside, and the front sides of the outer shell 11 and the inner pot 12 have corresponding openings.

[0044] The heat insulation cover 13 is located at the upper part of the inner cavity of the outer shell 11 and covers the top of the inner liner 12. The heat insulation cover 13 has a steam vent 131 on its rear side.

[0045] The air guide shroud 14 is located on the upper part of the inner cavity of the outer shell 11 and covers the heat insulation shroud 13. An air outlet 141 is provided on the rear side of the air guide shroud 14. The exhaust port 131 is directly opposite the air outlet 141, and the air outlet 141 is directly opposite the exhaust port 111.

[0046] An air outlet hood 15 is disposed inside the outer casing 11 and connected between the air outlet 141 and the exhaust port 111. The air outlet hood 15 has a partition 151 extending toward the air guide hood 14. The partition 151 divides the interlayer space between the air guide hood 14 and the heat insulation hood 13 into a cold air chamber 142 and an exhaust passage 143. The exhaust port 131 and the exhaust port 111 are connected through the exhaust passage 143.

[0047] The pot body 2 can be pulled back and forth through the openings on the front of the outer shell 11 and the inner pot 12 to enter and exit the cooking cavity 120.

[0048] The hot air assembly 3 is used to blow hot air into the cooking cavity 120, and includes a heating element 31, a hot air circulation fan 32, a cooling fan 33, and a motor 34. Specifically, the heating element 31 is a mosquito coil-type heating tube, which is located inside the heat insulation cover 13; the hot air circulation fan 32 is located inside the heat insulation cover 13 and above the heating element 31; the cooling fan 33 is located inside the cold air cavity 142; the motor 34 is located inside the housing 11 and is installed on the top of the air guide cover 14, and its power output shaft extends downward into the cold air cavity 142 and the heat insulation cover 13 in sequence, and is connected to the cooling fan 33 and the hot air circulation fan 32 for transmission.

[0049] The valve assembly 4 is used to open or close the exhaust port 131, and includes a base 41, a valve plate 42, and a drive component 43. Specifically, the base 41 is mounted on the heat insulation cover 13; the valve plate 42 is disposed in the exhaust channel 143 and is rotatably connected to the base 41 via a rotating shaft 421; the drive component 43 is a motor, and its power output shaft is coaxially connected to the rotating shaft 421 to drive the rotating shaft 421 to rotate, so that the valve plate 42 covers or removes the cover of the exhaust port 131.

[0050] The control switch 5 is used to monitor whether the valve plate 42 covers the exhaust port 131, and includes a trigger rod 51 and a micro switch 52. Specifically, the trigger rod 51 is arranged perpendicular to the rotating shaft 421, the first end of the trigger rod 51 is mounted on the rotating shaft 421, and the second end of the trigger rod 51 has a trigger part 511; the micro switch 52 is mounted on the base 41 and has a contact 521 corresponding to the trigger part 511.

[0051] In addition, the air fryer also has a control board for controlling the opening and closing of the drive unit 43. The micro switch 52 of the control switch 5 is electrically connected to the control board. When the valve plate 42 covers the exhaust port 131, the trigger part 511 presses the contact 521 to make the control board control the drive unit 43 to close.

[0052] The working principle of this embodiment is as follows:

[0053] (1) When food needs to be crispy, place the pot 2 containing the food into the cooking cavity 120, start the air fryer and select the crispy mode. The drive unit 43 drives the rotating shaft 421 to rotate, causing the valve plate 42 to flip backward for 5 seconds to remove the cover on the exhaust port 131, so that the exhaust port 222 opens (e.g., Figure 2 and Figure 3 (As shown), then the heating element 31, together with the hot air circulation fan 32, blows hot air onto the food in the cooking cavity 120. During this process, the water vapor in the cooking cavity 120 enters the exhaust channel 143 through the exhaust port 131 and is finally discharged through the exhaust port 111, thus achieving crispy roasting of the food.

[0054] (2) When food needs to be tenderly roasted, place the pot body 2 containing the food into the cooking chamber 120, start the air fryer and select the tender roast mode. The drive unit 43 drives the rotating shaft 421 to rotate, causing the valve plate 42 to flip forward until the trigger part 511 presses the contact 521. The control board controls the drive unit 43 to close. At this time, the valve plate 42 remains in the position covering the exhaust port 131, so that the exhaust port 222 is closed (e.g., Figure 4 and Figure 5 (As shown), then the heating element 31, together with the hot air circulation fan 32, blows hot air onto the food in the cooking cavity 120. During this process, the water vapor in the cooking cavity 120 cannot be discharged through the exhaust port 131, thus achieving tender roasting of the food.

Claims

1. An air fryer capable of switching between a tender roasting mode and a crisp roasting mode, comprising: The outer casing (11) has an exhaust vent (111); The inner liner (12) is disposed inside the outer shell (11) and has a cooking cavity (120) with a top opening; as well as A heat insulation cover (13) is provided inside the outer shell (11) and covers the top of the inner liner (12). The heat insulation cover (13) has a steam vent (131) and a steam vent passage (143) is connected between the steam vent (131) and the exhaust vent (111). The feature is that it further includes a valve assembly (4) for opening or closing the exhaust port (131).

2. The air fryer according to claim 1, characterized in that: The valve assembly (4) includes: The base (41) is fixed relative to the heat shield (13); The valve plate (42) is rotatably connected to the base (41) via a rotating shaft (421); as well as A drive unit (43) is used to drive the rotating shaft (421) to rotate so that the valve plate (42) covers or removes the cover of the exhaust port (131).

3. The air fryer according to claim 2, characterized in that: The air fryer has a control board for controlling the opening and closing of the drive unit (43) and a control switch (5) for monitoring whether the valve plate (42) covers the exhaust port (131). The control switch (5) is electrically connected to the control board. When the valve plate (42) covers the exhaust port (131), the control switch (5) controls the drive unit (43) to close through the control board.

4. The air fryer according to claim 3, characterized in that: The control switch (5) includes: A trigger rod (51), with its first end mounted on the rotating shaft (421) and its second end having a trigger part (511); and The micro switch (52) is fixed relative to the heat shield (13) and has a contact (521) corresponding to the trigger part (511); With the valve plate (42) covering the exhaust port (131), the trigger part (511) presses the contact (521) to cause the control board to control the drive (43) to close.

5. The air fryer according to claim 1, characterized in that: It also includes An air guide shroud (14) is disposed inside the outer casing (11) and covers the heat insulation shroud (13). The air guide shroud (14) has an air outlet (141), the exhaust port (131) is directly opposite the air outlet (141), and the air outlet (141) is directly opposite the exhaust port (111); and An air hood (15) is disposed inside the outer casing (11) and connected between the air outlet (141) and the exhaust outlet (111).

6. The air fryer according to claim 5, characterized in that: The air outlet hood (15) has a partition (151) extending into the air guide hood (14), which divides the interlayer space between the air guide hood (14) and the heat insulation hood (13) into a cold air chamber (142) and the exhaust passage (143).

7. The air fryer according to claim 6, characterized in that: It also includes a hot air assembly (3) for blowing hot air into the cooking cavity (120).

8. The air fryer according to claim 7, characterized in that: The hot air assembly (3) includes: Heating element (31) is disposed inside the heat insulation cover (13); and A heat circulation fan (32) is disposed inside the heat insulation cover (13) and located above the heating element (31); A cooling fan (33) is disposed inside the cold air cavity (142); The motor (34) is located inside the housing (11) and installed on the top of the air guide shroud (14). Its power output shaft extends downward into the cold air chamber (142) and the heat insulation shroud (13) in sequence and is connected to the cooling fan (33) and the heat circulation fan (32) in a drive connection.

9. The air fryer according to any one of claims 1 to 8, characterized in that: It also includes a pot body (2), the front sides of the outer shell (11) and the inner pot (12) have corresponding openings, and the pot body (2) can be pulled back and forth through the openings to enter and exit the cooking cavity (120).

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