Air fryer

Abstract

The present application relates to a kind of air fryer, comprising: machine body, with pot body placement cavity and the installation cavity located above pot body placement cavity;Pot body, placed in pot body placement cavity and can be taken out from pot body placement cavity;Heating unit, is located in the installation cavity;Air supply unit, including fan assembly, fan assembly the installation cavity is in, and located above heating unit;It further includes two filter oil nets in the installation cavity, respectively first filter oil net and second filter oil net, first filter oil net is shielded below heating unit, second filter oil net is located between heating unit and fan assembly, to shield fan assembly.It can effectively block the oil droplet splashed in cooking process to contact upper fan assembly and heating unit, and cause oil pollution, improve the service life of heating unit and fan assembly.

Description

Technical Field

[0001] This invention relates to the field of cooking equipment technology, and more particularly to an air fryer. 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. Existing air fryers generally consist of a main body containing a cooking chamber. Inside the main body is a hot air intake system that supplies high-temperature air into the cooking chamber. The cooking chamber contains a pot for holding the food. The high-temperature air generated by the hot air intake system heats the food inside the pot, ensuring full contact between the hot air and the food. This rapid loss of moisture from the food's surface, combined with the food's own oils, creates a crispy texture, similar to deep-frying.

[0003] For example, the utility model patent "Air Fryer" with patent application number CN201920242395.4 (publication number CN209712628U) discloses an air fryer, including an inner pot, an outer shell, and a fan assembly, a heating assembly, and an upper inner liner assembly disposed inside the outer shell. The fan assembly includes a motor and upper and lower fan blades connected to the motor shaft. The upper inner liner assembly and the upper part of the outer shell form a first cavity. The upper inner liner assembly and the inner pot form a working cavity for cooking food. The motor and upper fan blades are disposed within the first cavity, and the lower fan blades and heating assembly are disposed within the working cavity. Furthermore, an air outlet for the upper fan blades, communicating with the first cavity, is provided on the outer shell. This air fryer can significantly reduce the temperature rise of the outer shell, rapidly cooling the entire outer shell.

[0004] The air fryers mentioned above have certain shortcomings in actual use. First, the fan blades and heating element are exposed inside the cooking cavity. Therefore, during the heating of food, especially high-oil foods, oil splattering can cause oil contamination of the fan blades and heating element. If not cleaned promptly, this can lead to serious hygiene problems, affecting user health and experience. Second, the pot body of existing air fryers is generally detachably assembled into the housing. In daily use, some careless users may start the air fryer without placing the pot body inside, posing a safety hazard. While some air fryers have microswitches to detect whether the pot body is properly positioned, these microswitches are often located at the bottom of the housing. This improper placement can lead to insensitive microswitches, meaning the power may not be cut off immediately after the pot body is removed, and the hot air assembly may continue to operate, still posing a safety risk. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide an air fryer that can effectively reduce the oil contamination of the heating unit and the air supply unit, in light of the current state of the prior art.

[0006] The second technical problem that this invention aims to solve is to provide an air fryer with sensitive power-on / off action and high safety, in light of the current state of the technology.

[0007] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: an air fryer, comprising:

[0008] The body has a pot placement cavity and a mounting cavity located above the pot placement cavity;

[0009] The pot body is placed in the pot body placement cavity and can be removed from the pot body placement cavity;

[0010] The heating unit is located in the mounting cavity;

[0011] An air supply unit includes a fan assembly, which is disposed in the mounting cavity and located above the heating unit;

[0012] It also includes two oil filter screens disposed in the mounting cavity, namely a first oil filter screen and a second oil filter screen. The first oil filter screen is shielded under the heating unit, and the second oil filter screen is located between the heating unit and the fan assembly to shield the fan assembly.

[0013] In order to arrange the two oil filter screens in a reasonable space, a heat insulation cover is installed in the mounting cavity. The heat insulation cover has a recessed area formed by a partial upward concavity. The heating unit and the fan assembly are both located in the recessed area. The first oil filter screen is located at the concave position of the recessed area, and the second oil filter screen is located in the recessed area, thus isolating the heating unit from the fan assembly.

[0014] In order to place the second oil filter screen more securely inside the heat insulation cover, the heat insulation cover has a stepped limiting part on the wall. The second oil filter screen is disposed on the stepped limiting part, and the recessed area of ​​the heat insulation cover is divided into a first cavity located at the upper part and a second cavity located at the lower part. The fan assembly is disposed in the first cavity, and the heating unit is disposed in the second cavity.

[0015] The air fryer body can be either a one-piece structure (the pot body and the body are connected by a pull-out method) or a flip-top structure. For the one-piece structure, the body is a single piece, and the side of the body has an opening that communicates with the pot body placement cavity to allow the pot body to enter and exit. The pot body is installed in the pot body placement cavity of the body by a pull-out method.

[0016] The technical solution adopted by the present invention to solve the second technical problem mentioned above is as follows: it further includes the pot body detection device, which includes:

[0017] A micro switch is mounted on the machine body and electrically connected to the control system;

[0018] A trigger element is movably disposed on the body and is at least partially exposed on the inner wall surface of the pot placement cavity in its natural state, so that when the pot is moved into place, it is pressed by the pot to trigger the micro switch.

[0019] A first elastic element acts on the trigger element, causing the trigger element to always tend to protrude from the inner wall of the pot placement cavity of the machine body. The trigger element can adopt various rod, plate, or other structures. To ensure the reliability of the pot detection device, the side of the machine body has an opening communicating with the pot placement cavity for the pot to enter and exit. The trigger element is a trigger rod, which is vertically and movably constrained to the machine body. In its natural state, the lower end of the trigger rod protrudes from the upper edge of the opening of the machine body.

[0020] To facilitate the installation of the trigger rod and micro switch, a fixed base is also included on the machine body. The micro switch is mounted on the fixed base, which also has a movable cavity. The trigger rod is movably constrained within the movable cavity along its own axial direction. The lower end of the trigger rod passes through the fixed base and the machine body sequentially, protruding from the upper edge of the opening of the machine body. The fixed base allows the micro switch, elastic element, and trigger rod to be integrated together, facilitating the modular assembly of the pot detection device. To ensure that the micro switch is triggered promptly when the trigger rod moves under the pressure of the pot body, the micro switch is mounted on the fixed base and located on a side offset from the axis of the trigger rod. The side wall of the trigger rod also has an actuating part protruding towards the side where the trigger part of the micro switch is located. The upper part of the actuating part has a first inclined surface that gradually slopes outward from top to bottom.

[0021] To further improve the accuracy of the pot detection device in determining whether the pot is properly positioned, a first guide groove is provided on the bottom surface of the upper edge of the opening of the machine body. The extension direction of the first guide groove is consistent with the inlet and outlet direction of the pot. The lower end of the trigger rod is exposed on the bottom surface of the first guide groove. The upper part of the pot has a strip-shaped rib corresponding to the first guide groove. The extension direction of the strip-shaped rib is consistent with the extension direction of the first guide groove. When the pot enters the pot placement cavity of the machine body, the strip-shaped rib enters the first guide groove and presses upward against the trigger rod.

[0022] To prevent the pot body from easily detaching from the pot body placement cavity after it has been placed in place, a locking assembly is also included to lock the pot body relative to the machine body after it has been placed in place. The locking assembly includes a limiting pin and a second elastic member. The limiting pin is vertically and movably constrained to the machine body. In its natural state, the lower end of the limiting pin protrudes beyond the upper edge of the opening of the machine body. The second elastic member is provided on the machine body and acts on the limiting pin, so that the lower end of the limiting pin always tends to protrude beyond the upper edge of the opening of the machine body. The top of the pot body has a limiting groove corresponding to the limiting pin, into which the lower end of the limiting pin is engaged.

[0023] The air fryer body can also adopt a flip-top structure. To simplify the body structure, the body includes a base and a cover. The base has the pot placement cavity, and the cover has the mounting cavity. The cover is connected to the base in a flip-top manner and can open or close the pot placement cavity. The heating unit, the air supply unit, the first oil filter, and the second oil filter are all located on the cover.

[0024] To prevent the food inside the pot from drying out, the inner bottom wall of the pot has an upwardly extending, circumferentially closed flange. The area enclosed by this flange forms a water-filling area. By providing this water-filling area, the water inside the area evaporates under the action of the heating unit, maintaining a certain level of humidity inside the pot. This prevents the food from drying out. Furthermore, there is no need for a water pump, water tank, or steam generator, resulting in a simpler structure and lower cost.

[0025] Compared with the prior art, the advantages of the present invention are as follows: The air fryer is equipped with at least two oil filter screens, one of which is shielded under the heating unit, and the other is located between the heating unit and the fan assembly. This arrangement effectively prevents oil droplets splashing during cooking from contacting the upper fan assembly and the heating unit, thus avoiding oil contamination and improving the service life of the heating unit and fan assembly. In a preferred embodiment, when the pot body is inserted into the pot body placement cavity of the machine body and moved into place, the trigger element of the pot body detection device is pressed by the pot body, which quickly triggers the micro switch, ensuring that the heating unit of the product can start working in a timely manner. When the pot body is removed from the pot body placement cavity of the machine body, the trigger element can quickly disengage from the micro switch, releasing the trigger state of the micro switch and stopping the heating unit from heating, ensuring the safety of product use. On the other hand, by placing the pot detection device and heating unit of the air fryer on the upper part of the machine, the wiring between the micro switch of the pot detection device and the control system is effectively simplified, and the electrical components are integrated as much as possible on the upper part of the machine, which facilitates the production and assembly of the various components of the air fryer and reduces production costs. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of the air fryer body and pot body in a separated state according to an embodiment of the present invention;

[0028] Figure 3 This is a three-dimensional structural diagram of the pot body according to an embodiment of the present invention;

[0029] Figure 4 This is a vertical sectional view of an embodiment of the present invention;

[0030] Figure 5 This is a vertical cross-sectional perspective view of the three-dimensional structure according to an embodiment of the present invention;

[0031] Figure 6 This is a three-dimensional structural diagram of the body according to an embodiment of the present invention;

[0032] Figure 7 This is a three-dimensional structural diagram of the body of the present invention after the cover is removed;

[0033] Figure 8 for Figure 7 Exploded view;

[0034] Figure 9 This is a schematic diagram of the structure of the pot body and the pot body detection device on the machine body in a cooperative state according to an embodiment of the present invention. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration 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. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0037] See Figures 1-9An air fryer includes a body 10, a pot body 20, a heating unit 31, a fan assembly 32, an oil filter, a pot body detection device, and a locking assembly.

[0038] The air fryer body 10 has a pot placement cavity 100 and a mounting cavity 102 located above the pot placement cavity 100.

[0039] The air fryer body 10 can be a one-piece structure, that is, the pot body 20 and the body 10 are connected by a horizontal pull-out method, or it can be a flip-top structure. For the flip-top body, the body 10 includes a base (not shown) and a lid (not shown). The base has a pot placement cavity 100, and the lid has a mounting cavity 102. The lid is connected to the base in a flip-top manner and can open or close the pot placement cavity 100. The heating unit 31, the air supply unit, the first oil filter 51 and the second oil filter 52 are all arranged on the lid.

[0040] This embodiment Figures 1-9 The pull-out air fryer structure is shown. See details. Figure 1 and Figure 2 The body 10 is a single piece, and it has an opening 101 on the side that connects to the pot placement cavity 100 (specifically, the opening 101 is at the front). The pot 20 can be placed in the pot placement cavity 100 through the opening 101 and can be removed from the pot placement cavity 100.

[0041] See Figure 4 and Figure 5 The heating unit 31 is mounted on the body 10, and may specifically be a heating tube located in the mounting cavity 102. The air supply unit in this embodiment includes a motor 33 and a fan assembly 32 connected to the output shaft of the motor 33. Specifically, the fan assembly 32 is also located in the mounting cavity 102, above the heating unit 31, and is used to circulate the high-temperature gas heated by the heating unit 31 within the cooking cavity of the pot. To facilitate the assembly of the components, the body 10 includes an upper cover 13, which can cover the control unit located on the upper part of the body 10.

[0042] See also Figure 5This embodiment uses two oil filters, namely a first oil filter 51 and a second oil filter 52. Specifically, a heat insulation cover 40 is installed in the mounting cavity 102 of the body 10. The heat insulation cover 40 has a partially concave recessed area 41. The heating unit 31 and the fan assembly 32 are both located in the recessed area 41. The first oil filter 51 covers the recessed area 41 and shields the heating unit 31, reducing the contact of splashed oil droplets with the heating unit 31 during cooking and preventing contamination of the heating unit 31. The second oil filter 52 is located in the recessed area 41 and isolates the heating unit 31 from the fan assembly 32. Specifically, it can shield the fan assembly 32 from below. More specifically, a stepped limiting portion 42 is defined on the wall of the heat insulation cover 40. The second oil filter 52 can be fixed to the stepped limiting portion 42 by screws or other connectors, thereby dividing the recessed area of ​​the heat insulation cover 40 into a first cavity 411 located at the upper part and a second cavity 412 located at the lower part. Correspondingly, the fan assembly 32 is disposed in the first cavity 411, and the heating unit 31 is disposed in the second cavity 412. The aforementioned first oil filter 51 is disposed on the outer periphery of the heat insulation cover 40.

[0043] The motor 33 of the air supply device is located outside the heat insulation cover 40. Its output shaft passes through the wall of the heat insulation cover 40 and extends into the heat insulation cover 40, connecting to the fan assembly 32, thereby driving the fan assembly 32 to rotate. Furthermore, a cooling fan 34 is also provided on the output shaft of the motor 33. The cooling fan 34 is located outside the heat insulation cover 40 and is used to dissipate heat from components inside the body 10 located outside the heat insulation cover 40. See details below. Figure 5 .

[0044] In this embodiment, the oil filter screen can effectively prevent oil droplets splashing during cooking from contacting the upper fan assembly 32 and heating unit 31, thus preventing oil contamination and improving the service life of the heating unit 31 and fan assembly 32.

[0045] The pot body 20 can be pulled out and into the pot placement cavity 100 through the side opening 101 of the machine body 10. Before cooking, the user can place the food to be heated into the pot body 20, and then put the pot body 20 into the pot placement cavity 100 of the machine body 10. After cooking, the user can take the pot body 20 out of the pot placement cavity 100 of the machine body 10, and then take out the processed food from the pot body 20. The above-mentioned detachable pot body 20 design also facilitates the cleaning of the pot body 20.

[0046] See Figure 4 and Figure 5The bottom of the pot body 20 has an open water-filling area 80 for holding water. This water-filling area 80 does not interfere with the frying basket or grill (not shown in the figure) placed inside the pot body 20. That is, the water in the water-filling area 80 will not overflow the frying basket or grill, nor will it contaminate the food on the frying basket or grill. Specifically, the water-filling area 80 is located on the inner bottom of the pot body 20. The inner bottom wall of the pot body 20 has an upwardly extending circumferentially closed flange 81, and the area enclosed by the flange 81 is the water-filling area 80. Preferably, the flange 81 is annular and located in the middle of the inner bottom wall of the pot body 20. In other embodiments, the flange 81 may also be square to form a square water-filling area 80. Multiple water-filling areas 80 may be provided, and the water-filling areas 80 may also be located on the inner bottom wall of the pot body 20 near the side wall. During use, the water in the water injection area 80 of the air fryer will evaporate, keeping the inside of the pot 20 at a certain level of humidity, so that the food will not be over-dried.

[0047] See Figures 6-9 The pot body detection device is mounted on the machine body 10 and electrically connected to the control system. It can be used to identify whether the pot body 20 is properly positioned within the pot body placement cavity 100 of the machine body 10. Specifically, the pot body detection device includes a fixed base 64, a micro switch 61, a trigger element 62, and a first elastic element 63. The micro switch 61, trigger element 62, and first elastic element 63 are all mounted on the fixed base 64, thus integrating them into a module, facilitating modular assembly of the pot body detection device.

[0048] See Figure 7 and Figure 8 The fixed base 64 can be fixed to the body 10 with screws. The fixed base 64 has a movable cavity 640, which has openings at the bottom and sides. The trigger 62 and the elastic element can be inserted into the movable cavity 640 through the bottom opening of the fixed base 64. A micro switch 61 is provided on the fixed base 64. Specifically, the micro switch 61 is located on a side offset from the axis of the trigger rod and has a trigger part adjacent to the trigger rod, which can be triggered when the trigger 62 in the movable cavity 640 moves. The trigger rod is movably constrained in the movable cavity 640 along its own axis, specifically, it is vertically movably provided in the movable cavity 640. The lower end of the trigger rod passes through the bottom opening of the fixed base 64 and the body 10 in sequence and is exposed at the upper edge of the side opening 101 of the body 10. The body 10 has an opening corresponding to the upper edge of the side opening 101 for the trigger rod to pass through. When the pot body 20 moves into position, the lower end of the trigger rod is pressed by the pot body 20 and moves upward, thereby triggering the micro switch 61 mentioned above. At this time, the micro switch 61 will transmit the signal that the pot body 20 has moved into position to the control system.

[0049] See Figure 8The lower end of the trigger rod forms a downward-convex hemispherical structure. This hemispherical structure serves as a guide and transition, allowing the trigger 62 to be smoothly lifted upwards when the pot body 20 enters the pot body placement cavity 100, thus avoiding jamming.

[0050] See also Figure 8 To make the up-and-down movement of the trigger rod smoother and avoid wobbling, the inner wall of the movable cavity 640 of the fixed base 64 has a second guide groove 641 that extends vertically. The side wall of the trigger rod has a protrusion 623 corresponding to the first guide groove 11. The protrusion 623 is slidably limited in the second guide groove 641.

[0051] Combination Figure 8 and Figure 9 The trigger rod also has an actuating part 620 protruding from the side of the trigger portion of the micro switch 61. In this embodiment, the actuating part 620 is a strip-shaped protrusion extending vertically, and this strip-shaped protrusion is spaced apart from the aforementioned protrusion 623 along the circumference of the trigger rod. The upper part of the actuating part 620 has a first inclined surface 621 that gradually slopes outward from top to bottom. When the trigger rod moves upward under the pressure of the pot body 20, the actuating part 620 can trigger the micro switch 61 to operate as the trigger rod moves upward.

[0052] See Figure 9 The first elastic element 63 is a spring located in the movable cavity 640 of the fixed base 64. This elasticity can act downward on the trigger rod, and the lower end of the trigger element 62 always tends to protrude from the upper edge of the side opening 101 of the body 10. In order to make the spring more securely fixed, the outer peripheral wall of the trigger rod has a radially outward protruding abutment 622. The spring is sleeved on the upper end of the trigger rod and abuts against the aforementioned abutment 622.

[0053] In this embodiment, the bottom surface of the upper edge of the side opening 101 of the body 10 has a first guide groove 11. The extending direction of the first guide groove 11 is consistent with the inlet and outlet direction of the pot body 20. The front of the first guide groove 11 has an opening. Specifically, the first guide groove 11 can be defined by two spaced strip-shaped protrusions protruding from the bottom surface of the upper edge of the opening 101 of the body 10 (see details). Figure 6 Alternatively, it can be formed by an upward indentation from the bottom surface of the upper edge of the side opening 101 of the body 10.

[0054] The upper part of the pot body 20 has a strip-shaped rib 210 corresponding to the first guide groove 11 of the machine body 10. The extending direction of the strip-shaped rib 210 is consistent with the extending direction of the first guide groove 11. The lower end of the trigger rod is exposed above the bottom surface of the first guide groove 11. When the pot body 20 enters the pot body placement cavity 100 of the machine body 10, the strip-shaped rib 210 can enter the first guide groove 11 and press the trigger rod upward. See details. Figure 3 More specifically, the front area of ​​the periphery of the pot body 20 has a semi-enclosed first relief groove 21 with the groove opening facing rearward (inner side of the pot body 20). The aforementioned strip-shaped protrusion 210 is provided in the first relief groove 21 and extends along the length direction of the first relief groove 21. When the pot body 20 enters the pot body placement cavity 100 of the machine body 10, the second relief groove 22 allows the strip-shaped protrusion on the machine body 10 to enter it.

[0055] The working principle of the air fryer pot detection device in this embodiment is as follows:

[0056] When the pot body 20 enters the pot placement cavity 100 of the machine body 10 through the side opening 101, the strip-shaped rib 210 of the pot body 20 can slide into the first guide groove 11 on the upper edge of the side opening 101 of the machine body 10. After the pot body 20 moves into place, the strip-shaped rib 210 of the pot body 20 can press upward against the lower end of the trigger rod, driving the trigger rod to move upward. When the trigger rod moves upward, the contact part 620 of the trigger rod can trigger the micro switch 61 to act. At this time, the air fryer can start working normally. When the pot body 20 is taken out from the pot placement cavity 100 of the machine body 10, the strip-shaped rib 210 of the pot body 20 releases the pressure on the trigger rod, and the trigger rod returns to its original position downward under the action of the spring (see the arrow in the figure for the direction of the up and down movement of the trigger rod). At this time, the micro switch 61 is in the untriggered state. At this time, the heating unit 31 of the air fryer is powered off in time, improving the safety of product use.

[0057] See Figure 3 and Figure 6In this embodiment, the locking assembly is disposed on the body 10 and is used to lock the pot body 20 relative to the body 10 after it is placed in place. Specifically, the locking assembly includes a limiting pin 71 and a second elastic member 72. The limiting pin 71 is vertically and movably constrained on the body 10. The body 10 has a detachable fixing plate 12. The bottom of the fixing plate 12 defines an assembly groove 120. The limiting pin 71 is disposed between the body 10 and the fixing plate 12 and can be vertically and movably disposed in the assembly groove 120. More specifically, after the limiting pin 71 is assembled in place, the lower end of the limiting pin 71 can protrude from the upper edge of the opening 101 of the body 10. The second elastic element 72 is preferably a spring, which is disposed in the mounting groove 120 of the fixed plate 12 and abuts against the upper end of the limiting pin 71, so that the lower end of the limiting pin 71 always tends to protrude from the upper edge of the opening 101 of the body 10. The top of the pot body 20 has a limiting groove 220 corresponding to the limiting pin 71, into which the lower end of the limiting pin 71 is inserted.

[0058] See Figure 3 The front area of ​​the periphery of the pot body 20 has a semi-enclosed second relief groove 22 with the groove opening facing the rear (inner side of the pot body 20). The bottom surface of the second relief groove 22 has an upwardly protruding limiting protrusion 23. The limiting protrusion 23 extends along the width direction of the second relief groove 22. Thus, the limiting protrusion 23 and the second relief groove 22 together define the aforementioned limiting slot 220. During the process of the pot body 20 entering the pot body placement cavity 100 of the machine body 10, in order to enable the limiting pin 71 of the locking component to slide smoothly into the limiting slot 220 during the process of the pot body 20 entering the pot body placement cavity 100 of the machine body 10, and to smoothly disengage from the limiting slot 220 during the process of the pot body 20 being removed from the pot body placement cavity 100 of the machine body 10, the front side wall of the limiting protrusion 23 is inclined upward from front to back, and the rear side wall is inclined downward from front to back. Thus, the rear side wall of the limiting protrusion 23 forms a first guide slope 231, and the front side wall forms a second guide slope 232. That is, the cross-section of the limiting protrusion 23 is a structure that is smaller at the top and larger at the bottom.

[0059] In this embodiment, when the user inserts the pot body 20 into the pot body placement cavity 100 of the machine body 10, after the pot body 20 is placed in place, the locking component can securely lock the pot body 20 to the machine body 10. Thus, the pot body 20 will not easily come off relative to the machine body 10, and the strip-shaped rib 210 of the pot body 20 can be reliably kept in the tendency to press upward against the lower end of the trigger rod of the pot body detection device, thereby effectively keeping the micro switch 61 in the triggered state and ensuring the normal operation of the air fryer.

Claims

1. An air fryer, comprising: The body (10) has a pot placement cavity (100) and an mounting cavity (102) located above the pot placement cavity (100); The pot body (20) is placed in the pot body placement cavity (100) and can be removed from the pot body placement cavity (100); A heating unit (31) is disposed in the mounting cavity (102); The air supply unit includes a fan assembly (32), which is disposed in the mounting cavity (102) and located above the heating unit (31); The feature is that it also includes two oil filter screens disposed in the mounting cavity (102), namely a first oil filter screen (51) and a second oil filter screen (52). The first oil filter screen (51) is shielded under the heating unit (31), and the second oil filter screen (52) is located between the heating unit (31) and the fan assembly (32) to shield the fan assembly (32). A heat insulation cover (40) is also installed in the mounting cavity (102). The heat insulation cover (40) has a recessed area (41) formed by a partial upward concavity. The heating unit (31) and the fan assembly (32) are both located in the recessed area (41). The first oil filter (51) is covered at the recessed position of the recessed area (41). The second oil filter (52) is located in the recessed area (41) and isolates the heating unit (31) from the fan assembly (32). The heat insulation cover (40) has a stepped limiting part (42) on its wall. The second oil filter screen (52) is disposed on the stepped limiting part (42) and divides the recessed area (41) of the heat insulation cover (40) into a first cavity (411) located at the upper part and a second cavity (412) located at the lower part. The fan assembly (32) is disposed in the first cavity (411) and the heating unit (31) is disposed in the second cavity (412).

2. The air fryer according to claim 1, characterized in that: The body (10) is an integral piece. The side of the body (10) has an opening (101) that communicates with the pot placement cavity (100) for the pot (20) to enter and exit. The pot is installed in the pot placement cavity (100) of the body by means of being pulled out.

3. The air fryer according to claim 2, characterized in that: It also includes a pot body detection device, which comprises: A micro switch (61) is provided on the body (10) and electrically connected to the control system; The trigger (62) is movably disposed on the body (10) and is exposed at least partially on the inner wall surface of the pot placement cavity (100) in its natural state, so that when the pot (20) moves into place, it is pressed by the pot (20) to trigger the micro switch (61). The first elastic element (63) acts on the trigger element (62) and makes the trigger element (62) always tend to protrude from the inner wall surface of the pot placement cavity (100) of the body (10); the trigger element (62) is a trigger rod, which is vertically and movably constrained on the body (10). In its natural state, the lower end of the trigger rod protrudes from the upper edge of the opening (101) of the body (10).

4. The air fryer according to claim 3, characterized in that: It also includes a fixed base (64) on the body (10), the micro switch (61) is disposed on the fixed base (64), the fixed base (64) also has a movable cavity (640), the trigger rod is movably constrained in the movable cavity (640) along its own axis, the lower end of the trigger rod passes through the fixed base (64) and the body (10) in sequence and is exposed on the upper edge of the opening (101) of the body (10); the micro switch (61) is disposed on the fixed base (64) and is located on a side away from the axis of the trigger rod, the side wall of the trigger rod also has a trigger part (620) protruding toward the trigger part of the micro switch (61), the upper part of the trigger part (620) has a first inclined surface (621) that gradually slopes outward from top to bottom.

5. The air fryer according to claim 4, characterized in that: The upper edge of the opening (101) of the body (10) has a first guide groove (11) on the bottom surface. The extension direction of the first guide groove (11) is consistent with the inlet and outlet direction of the pot body (20). The lower end of the trigger rod is exposed on the bottom surface of the first guide groove (11). The upper part of the pot body (20) has a strip-shaped rib (210) corresponding to the first guide groove (11). The extension direction of the strip-shaped rib (210) is consistent with the extension direction of the first guide groove (11). When the pot body (20) enters the pot body placement cavity (100) of the body (10), the strip-shaped rib (210) enters the first guide groove (11) and presses the trigger rod upward.

6. The air fryer according to claim 3, characterized in that: It also includes a locking assembly for locking the pot body (20) relative to the machine body (10) after it is placed in place. The locking assembly includes a limiting pin (71) and a second elastic member (72). The limiting pin (71) is vertically and movably constrained on the machine body (10). In its natural state, the lower end of the limiting pin (71) protrudes from the upper edge of the opening (101) of the machine body (10). The second elastic member (72) is provided on the machine body (10) and acts on the limiting pin (71), so that the lower end of the limiting pin (71) always tends to protrude from the upper edge of the opening (101) of the machine body (10). The top of the pot body (20) has a limiting groove (220) corresponding to the limiting pin (71) into which the lower end of the limiting pin (71) is inserted.

7. The air fryer according to claim 1, characterized in that: The body (10) includes a base and a cover. The base has the pot placement cavity (100), and the cover has the mounting cavity (102). The cover is connected to the base in a flip-up manner and can open or close the pot placement cavity (100). The heating unit (31), the air supply unit, the first oil filter (51), and the second oil filter (52) are all disposed on the cover.

8. The air fryer according to claim 1, characterized in that: The inner bottom wall of the pot body (20) has an upwardly extending circumferentially closed flange (81), and the area enclosed by the flange (81) constitutes a water filling area (80) for holding water.

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