CN110101316A - A kind of air fryer - Google Patents

Abstract

An air fryer, comprising a machine base; a pot body; a baking pan; a hot air device; it is characterized in that: the baking pan includes a disc-shaped body, an oil leakage hole is opened on the disc-shaped body, and the upper end surface of the disc-shaped body Several protruding parts are provided at intervals, and the upper end surface of each protruding part constitutes a supporting surface for placing food as a whole; a guide channel for hot air to flow is formed between two adjacent protruding parts; the hot air The device includes a hot air blade; a driving motor; a heating element; the hot air blade includes a turntable and several blades, and the blades protrude downward on the lower end surface of the turntable and are circumferentially spaced around the edge of the turntable. It is arranged obliquely along the rotation direction of the turntable, an air outlet for rotating hot air passing through is formed between two adjacent blades, and an air inlet for hot air to enter is formed between the lower end surface of the turntable and each blade. The application can improve the circulation path of hot air, thereby improving the cooking effect.

Description

an air fryer

technical field

The invention belongs to the technical field of kitchen appliances, and in particular relates to an air fryer.

Background technique

Fried foods such as French fries and fried chicken wings are loved by people because of their crispy taste and tangy aroma. However, fried foods contain high calories and fat, which is contrary to the current people's concept of healthy life; and repeated use of oil at high temperatures will cause Produce a carcinogen, which is very harmful to the human body.

The air fryer uses high-speed hot air circulation technology to fry food, which can meet people's demand for the taste of fried food. At the same time, because it does not need to use oil, it produces less odor and steam, and can also meet people's health needs. Good market prospects.

Existing air fryers mostly include an organic base, a pot body located in the base, a baking tray for placing food in the pot body, and a hot air device that can generate circulating hot air in the base, such as the patent No. 201720105061.3 utility model patent "A Kind of Air Fryer" (authorized announcement number is CN206867131U), patent number 201720236156.9 utility model patent "Air Fryer with Improved Thermal Efficiency" (authorized announcement number is CN207101153U) and other disclosed structures. All of the above air fryers can fry food well, but in the actual use process, it will be found that the high-speed circulating hot air flow directly affects the cooking effect of the air fryer. If the hot air cannot flow through the ingredients evenly, it will cause the ingredients Heating is uneven; and the structure of the baking pan sometimes has a greater impact on the flow of hot air. Reasonable setting of the baking pan can also improve the cooking effect of the air fryer.

Contents of the invention

The first technical problem to be solved by the present invention is to provide an air fryer that can improve the hot air circulation path and further improve the cooking effect in view of the current state of the art.

The second technical problem to be solved by the present invention is to provide an air fryer capable of supporting the baking pan after cooking to realize oil draining from the baking pan.

The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: an air fryer, including a machine base; a pot body arranged in the machine base; a baking pan arranged in the pot body; For the hot air device that generates hot air, the hot air device is located above the baking pan; it is characterized in that:

The baking tray includes a disc-shaped body, which is provided with an oil leakage hole, and a plurality of protruding parts are protruded from the upper end surface of the disc-shaped body at intervals, and the upper end surface of each protruding part is used as a whole to form a The food is placed on the supporting surface; a guide channel for hot air to flow is formed between two adjacent protrusions;

The hot-blast device includes a hot-blast fan blade; a drive motor capable of driving the hot-blast fan blade to rotate; and a heating element; the hot-blast fan blade includes a turntable and several blades, and the blades protrude downward on the lower surface of the turntable It is arranged at intervals around the edge of the turntable, and each blade is arranged obliquely along the rotation direction of the turntable, and an air outlet that can rotate the hot air passing through is formed between two adjacent blades. An air inlet for hot air to enter is formed.

In order to further improve the cooking efficiency, the protruding parts are elongated structures, and each protruding part is radially distributed around the middle part of the disc-shaped body to the outer edge; The outer edge of the disk-shaped body flows to the above-mentioned guide channel in the middle. In this way, the hot air blown from the air outlet on the outside of the hot air blade can flow along the pot body to the baking pan, and flow from the outer edge of the baking pan to the middle of the baking pan along the guide channel, and then flow through the air inlet of the hot air blade. Under the action, it moves upwards and is re-inhaled into the air inlet, and then blows out from the air outlet to complete a complete hot air cycle. Therefore, the protruding parts of the elongated structure can better cooperate with the hot air blades to improve cooking efficiency.

As an improvement, each of the protruding pieces is bent clockwise or counterclockwise. In this way, the hot air blown from the outer edge to the middle of the baking pan will generate a swirling flow, which can improve the circulation of the hot air and further improve the cooking efficiency.

In order to facilitate the oil on the disc-shaped body to leak from the oil leakage hole, and prevent the oil from accumulating on the disc-shaped body and affecting cooking, the disc-shaped body is preferably a structure with a low middle part and a high outer edge, and the oil leakage hole is set in the middle of the disc-shaped body.

More preferably, the oil leakage hole is located at the center of the disk-shaped body and several concentric circles centered on the center of the disk-shaped body, and the inner end of the flow guide channel corresponds to the oil leakage hole. In this way, while the hot air in the guide channel can improve the cooking effect, it can also blow the oil scattered on the disc-shaped body to the oil leakage hole, so that the oil can flow out from the oil leakage hole smoothly.

In the above solution, in order to improve the structural stability, and improve the air inlet efficiency of the air inlet and the air outlet efficiency of the air outlet, the hot air fan blade also includes an air guide ring, and the air guide ring is connected to the lower end of each blade .

Preferably, each of the blades is inclined at 20-80 degrees to the radial direction of the turntable; the number of the blades is at least 10.

The technical scheme adopted by the present invention to solve the above-mentioned second technical problem is as follows: a handle is provided on the upper end surface of the disc-shaped body, and a handle is provided on the upper part of the base to support the handle so that the disc-shaped body can be placed upright. stand.

In order to further improve the support stability and collect oil and water, an oil collecting groove for supporting the baking pan and collecting the oil and water on the baking pan is provided on the bottom of the machine base. The baking pan is supported on the oil collecting tank in a vertical position, so that the oil and water dripped from the baking pan can be collected into the oil collecting tank, which is more hygienic.

Compared with the prior art, the present invention has the advantages that: by setting the hot air blades as a structure in which several blades are arranged at intervals on the edge of the lower end surface of the turntable, and each blade is arranged obliquely along the rotation direction of the turntable to form a side outlet. The air inlet is formed between the lower end surface of the turntable and the blades, so that when the fan blades rotate, a negative pressure will be formed inside the fan blades, thereby forming a wind that is sucked from the middle air inlet and thrown out from the side air outlets. The airflow path can be optimized, and the airflow circulation can be effectively realized.

By setting several protruding parts on the baking pan, the hot air thrown from the air outlet on the side can flow from the outer edge of the baking pan to the middle of the baking pan through the guide channels between the protruding parts, and then suck the hot air upwards. The air inlet of the fan blade completes the hot air circulation, so the grill pan structure of the present application can better cooperate with the structure of the hot air fan blade, optimize the hot air circulation path, and improve the circulation efficiency. At the same time, the circulating hot air can flow between the adjacent raised parts, thereby heating the food on the raised parts, which improves the cooking effect; and because the food can be supported on the raised parts, it will not directly It is in contact with the oil leakage hole on the baking pan, thereby effectively preventing food from clogging the oil leakage hole and causing oil to accumulate on the baking pan, realizing the separation of food and grease.

By setting the handle on the baking pan and setting the bracket on the machine base, the baking pan can be supported on the bracket in a vertical posture through the handle, so the storage of the baking pan can be realized after cooking and the baking pan can be placed Drain the grease on the surface to improve the hygiene of use.

Description of drawings

Fig. 1 is the schematic structural view of baking tray in the embodiment of the present invention;

Fig. 2 is a structural schematic diagram of another viewing angle of the baking pan in the embodiment of the present invention;

Fig. 3 is a schematic diagram of the flow of hot air on the baking pan in an embodiment of the present invention;

Fig. 4 is the structural representation of hot air fan blade in the embodiment of the present invention;

Fig. 5 is a top view of the hot air blade in the embodiment of the present invention;

Fig. 6 is a schematic structural diagram of the oil fume filter assembly in the embodiment of the present invention;

Fig. 7 is a three-dimensional exploded view of the oil fume filter assembly in the embodiment of the present invention;

Figure 8 is a schematic structural view of the air fryer in an embodiment of the present invention;

Fig. 9 is a structural schematic diagram of a baking pan standing on an air fryer in an embodiment of the present invention;

Fig. 10 is a schematic structural view of the motor rack in an embodiment of the present invention;

Fig. 11 is a structural schematic diagram of another perspective of the air fryer in the embodiment of the present invention (the shell is omitted);

Fig. 12 is a structural schematic diagram of another viewing angle of the air fryer in the embodiment of the present invention (the shell is omitted);

Fig. 13 is a schematic structural view of a pot cover in an embodiment of the present invention;

Fig. 14 is a three-dimensional exploded view of a pot cover in an embodiment of the present invention;

Fig. 15 is a partial structural schematic diagram of the upper reflector in the embodiment of the present invention;

Fig. 16 is a schematic structural view of the pot lid in the embodiment of the present invention in an open state;

Fig. 17 is a schematic diagram of the external structure of the pot in the embodiment of the present invention when the lid is closed;

Fig. 18 is a schematic structural view of the pot lid in the embodiment of the present invention when it is closed;

Fig. 19 is a schematic structural diagram of the microswitch in the open state in the embodiment of the present invention;

Fig. 20 is a schematic diagram of the structure of the micro switch in the closed state in the embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in FIGS. 1-20 , it is a preferred embodiment of the air fryer of the present application. The air fryer includes an organic base; a pot body 10 disposed in the base; and a baking pan 20 disposed in the pot body 10 . The machine base can be a one-piece structure, and can also be a split structure with a base and a pot cover. In this embodiment, the machine base is a split structure with a base 30 and a pot cover 40 . The rear side of the pot cover 40 is hinged on the base 30 to realize rotation and opening. details as follows:

As shown in Figures 1-3 and Figure 9, the baking pan 20 includes a disc-shaped body 21, which is provided with an oil leakage hole 22, and the upper end surface of the disc-shaped body 21 is provided with several protrusions at intervals. 23, the upper end surface of each raised piece 23 integrally constitutes a supporting surface for placing food, and a guide channel 24 for hot air to pass is formed between two adjacent raised pieces 23. In this embodiment, the protruding parts 23 are elongated structures, and each protruding part 23 is radially distributed around the middle part of the disc-shaped body 21 toward the outer edge; a hot air supply is formed between two adjacent protruding parts 23 Flows from the outer edge of the disk-shaped body 21 to the above-mentioned flow guide channel 24 in the middle. In order to improve the hot air circulation efficiency, each protruding piece 23 is bent clockwise or counterclockwise.

In order to allow oil and water to leak from the oil leakage hole 22 and prevent oil and water from accumulating on the disk-shaped body 21, the disk-shaped body 21 is designed to have a structure with a low middle and a high outer edge. Specifically: the oil leakage hole 22 is located at the center of the disk-shaped body 21 and several concentric circumferential lines with the center of the disk-shaped body 21 as the center, and the inner end of the diversion channel 24 corresponds to the oil leakage hole 22 . The above-mentioned protruding parts 23 include a first group of protruding parts 231, a second group of protruding parts 232, and a third group of protruding parts 233. The first group of protruding parts 231 starts from the center of the disc-shaped body 21 and faces outwards. It is radially distributed; the second group of raised pieces 232 is located between two adjacent first set of raised pieces 231 and starts from the concentric circle line of the oil leakage hole in the inner ring to the outer edge in a radial distribution; the third set of raised pieces The lifting piece 233 is located between the two adjacent second group of raised pieces 232 and the adjacent first and second set of raised pieces, and starts from the concentric circle line of the outermost oil leakage hole to radiate to the outer edge. shape distribution. In this way, the starting point of the first group of protrusions 231 corresponds to the oil leakage hole 22 in the center of the disc-shaped body 21, the starting point of the second group of protrusions 232 corresponds to the oil leakage hole 22 on the inner ring of the disc-shaped body 21, and the third The starting point of the set of protrusions 233 corresponds to the oil leakage hole 22 on the outer ring of the disc-shaped body 21 . Of course, the oil leakage holes 22 are not limited to the above-mentioned distribution, and the arrangement of the oil leakage holes 22 can also be increased or decreased; the protrusions 23 are also not limited to the above-mentioned distribution structure.

To facilitate taking the baking pan, a handle 25 is provided on the upper end surface of the pan-shaped body 21 . There are two handles 25 located on the left and right sides of the disc-shaped body 21 ; The specific structure of the handle 25 is: the overall handle is an inverted L shape, including a vertical rod 251 whose lower end is supported on the upper surface of the disc-shaped body 21, a cross bar 252 connected to the upper end of the vertical rod 251, and a cross rod 252 The other end extends toward the lower side of the disc-shaped body 21 , and forms the above-mentioned hook portion with the upright rod 251 .

In order to enable the grill pan 20 to stand upright after cooking, the top of the base is provided with a support 51 capable of supporting the handle 25 so that the grill pan 20 can be placed upright. This support 51 has two and left and right intervals is arranged on the rear side of support; In order to cooperate with handle 25, be convenient to carry handle and buckle, support 51 is the lug that protrudes and is located on the support. And in order to further improve the supporting strength and collect the oil and water drained when the baking pan 20 stands upright, the bottom of the machine base is provided with an oil collecting groove 52 for supporting the baking pan 20 and collecting the oil and water on the baking pan 20 . In this way, the handle 25 on the baking pan 20 can be hung on the bracket 51 to make the baking pan 20 stand upright. In the standing state, the bottom of the baking pan 20 is supported on the oil collecting tank 52, and the oil and water can flow along the baking pan 20 to the collecting tank. In the oil groove 52, the collection of oil and water on the baking pan 20 is realized, and the sanitation of use is improved.

As shown in Figures 13, 14, 16, and 18, the above-mentioned pot cover 40 includes a housing 41 with a first air inlet 41A; an upper reflector 42 arranged in the housing 41; corresponding to the first air inlet 41A is located on the upper reflector 42 above the cold wind vane 43; the hot wind vane 44 located below the upper reflector 42; the drive motor 45 located above the upper reflector 42, whose output shaft passes through the cold wind vane 43 and the upper reflector successively After 42, link to each other with the hot-blast fan blade 44; Be located at the heating element 46 and the motor frame 47 below the hot-blast fan blade 44. Above-mentioned hot air vane 44, heating element 46 and driving motor 45 form the hot wind device that can produce hot wind, and cold wind vane 43 and driving motor 45 form the cold wind device that can produce cold wind.

Wherein, motor frame 47 is arranged on the top of upper radiating plate 42, is used for supporting drive motor 45; , the lower partition; a cavity is formed between the motor frame 47 and the upper reflector plate 42, and the cold wind blade 43 (the cold wind blade 43 selects a conventional blade structure) is located in the cavity; the bottom of the motor frame 47 or/and The outer edge of the upper reflecting plate 42 is provided with a second ventilation opening 47C for the cold air to flow out of the pot cover.

The concrete structure of motor frame 47 is: comprise the frame body 470 of inner hollow, the top of frame body 470 is provided with the installation hole 471 that is used to install drive motor 45, is formed with for the outside between this installation hole 471 and drive motor 45. The second air inlet 47A that cold air enters, the second air inlet 47A is opposite to the first air inlet 41A and communicates with the inside of the frame body 470; the frame body 470 outside the mounting hole 471 is provided with several The inside of the rack body 470 communicates with the first vent 47B for the cold air to flow to the outer shell 41 . In this implementation, the frame body 470 is in the shape of an inverted bowl as a whole (the frame body 470 is inverted on the upper radiation plate 42 to form the above-mentioned cavity), and the first vents 47B are circumferentially spaced along the side wall of the frame body 470. distributed. The lower edge of the frame body 470 is formed with an outwardly protruding support ring 472 , and the support ring 472 is provided with a plurality of the above-mentioned second ventilation openings 47C, and the second ventilation openings 47C are distributed along the circumference of the support ring 472 . The top of the frame body 470 protrudes upwards with a protruding seat 473, the protruding seat 473 penetrates up and down to form the above-mentioned mounting hole 471, which is used to accommodate the driving motor 45, and the driving motor 45 is connected to the mounting hole 471 through a connecting piece. Inside. Please refer to Figures 10, 11, and 12 for details.

In this embodiment, in order to improve the hot air circulation efficiency, it also includes a lower reflector 48, which is connected to the upper reflector 42 and is arranged on the hot air blade 44 and the heating element 46 (the heating element 46 is selected in this embodiment. Between the heating pipes), the lower reflecting plate 48 is provided with a through hole 480 opposite to the air inlet 44A of the hot air vane 44 . The connection structure between the lower reflector 48 and the upper reflector 42 is: the side wall of the lower reflector 48 is connected with the upper reflector 42 by at least three connecting pieces 481, and the two ends of the connecting piece 481 are connected with the upper and lower reflectors by screws. The plates are connected; in this embodiment, there are four connecting pieces 481 , which are distributed along the side wall of the lower reflecting plate 48 at intervals. And in order to further gather the hot air flow, the lower reflector 48 includes a panel and a side wall bent downward along the outer edge of the panel, the above-mentioned through hole 480 is located on the panel of the lower reflector 48, and the connecting piece 480 is connected to the lower reflector. on the side wall of the plate 48.

Wherein, as shown in Figures 4 and 5, the hot air fan blade 44 includes a rotating disk 441 connected to the output shaft of the drive motor 45 and several blades 442 (in this embodiment, the blade 442 and the rotating disk 441 are integral connectors, of course, respectively, and then the two are connected by a subsequent process), the blades 442 protrude downward on the lower end surface of the turntable 441 and are arranged at intervals around the edge of the turntable 441, and each blade 442 is arranged obliquely along the rotation direction of the turntable 441 An air outlet 44B capable of rotating the passing airflow is formed between two adjacent blades 442 , and an air inlet 44A for airflow to enter is formed between the lower end surface of the turntable 441 and each blade 442 . In order to improve the air inlet efficiency of the air inlet 44A and the air outlet efficiency of the air outlet 44B, the hot air blade 44 also includes an air guide ring 443 connected to the lower end of each blade 442 . Wherein, the number of blades 442 is at least 10, in this embodiment it is 13, and each blade 442 is inclined at 20-80 degrees to the radial direction of the turntable 441, and the inclination angle A in this embodiment is 49.53 degrees. In order to improve the strength of the turntable 441 , reinforcing ribs 444 are provided on the end surface of the turntable 441 .

In order to realize oil fume filtration, the above-mentioned pot cover 40 also includes an oil fume filter assembly 49 for filtering oil fume, as shown in Fig. It is connected with the lower reflecting plate 48 (that is, it is arranged below the air inlet 44A of the hot air vane 44 ). Wherein, the oil fume filter assembly 49 includes a support 491 that can be connected to the lower reflector 48 and a filter layer 492 arranged on the support 491. The filter layer 492 includes at least two layers and is distributed on the support 491 at intervals up and down. There are spaces between the filter layers 492 for the airflow to flow through. It also includes a support piece 493 for preventing two adjacent filter layers 492 from adhering to each other. The support piece 493 is connected with the bracket 491 and located in the space between the two adjacent filter layers 492 .

Specifically: the supporting member 493 is a supporting bar placed horizontally in the above-mentioned space, and the end of the supporting bar is connected with the bracket 491 . The bracket 491 has a ring-shaped frame structure as a whole, and a connecting piece detachably connected to the air fryer is provided on the outer wall of the bracket 491 . In this embodiment, the connector includes a tongue 494 that can be plugged into the air fryer (the side wall of the lower reflector 48 in this embodiment is provided with a jack 482, and the tongue 494 is plugged into the jack. 482), the tongue 494 is connected to the outer wall of one side of the bracket 491; the outer wall of the other side of the bracket 491 is provided with a hook 495 that matches the hook 483 on the air fryer (the hook 495 in this embodiment Hooks 483 are provided on the side walls of the lower radiation plate 48). The slot 495 extends circumferentially along the outer wall of the bracket 491 . For easy access, the oil fume filter assembly 49 also includes a handle 496 , and the handle 496 is snapped into the slot 495 . In this embodiment, the filter layer 492 has two layers, which are respectively connected to the upper and lower edges of the bracket 491 . The supporting member 493 has a cross-shaped structure as a whole. Of course, supporting members of other structures can also be used, as long as the filter layer 492 can be supported and the flow of hot air is not hindered. By setting the oil fume filter assembly 49, the oil fume of a part of the wind can be filtered out, preventing the oil fume from adhering to the heating element 46 and the hot air blade 44 and affecting the use.

In this embodiment, in order to facilitate the opening and closing of the pot cover 40, the air fryer also includes a rotating mechanism 50, the pot cover 40 is hinged on the base 30 through the rotating mechanism 50, and the above-mentioned brackets 51 are arranged on the left and right sides of the rotating mechanism 50 , the above-mentioned oil collecting tank 52 is arranged at the hinge joint between the rotating mechanism 50 and the base 30 . Wherein, rotating mechanism 50 comprises rotating plate 53 and rotating shaft 54, and the upper end of rotating plate 53 is connected with the rear side of pot cover 40, and the lower end is connected with base 30 by rotating shaft 54; The base 30 is connected. A space 530 for accommodating a circuit board is defined inside the rotating plate 53 , and a cooling hole communicating with the space 530 is defined on the rotating plate 53 . Specifically: the rotating plate 53 is provided with a fourth air inlet 53A and a fourth air inlet 53B that communicate with the space 530, the fourth air inlet 53A communicates with the first air outlet 47B, and the fourth air inlet 53B communicates with the outside world. connected.

In order to realize that the oil and water adhered to the pot cover 40 after the pot cover 40 is opened will not drip everywhere, the pot cover 40 is provided with a pot cover on the working surface opposite to the pot body 10 (i.e. the working surface of the above-mentioned upper reflecting plate 42). After 40 is opened, the oil and water on the working surface can be guided to the oil guide channel on the rear side of the pot cover 40. After the pot cover 40 is opened, the above-mentioned oil collection groove 52 is located below the outlet of the oil guide channel. Specifically: the working surface of the upper reflector 42 is provided with a first oil guiding groove 421 and a second oil guiding groove 422 extending from the left and right sides of the working surface to the rear side relatively along the edge of the working surface. The oil groove 421 and the second oil guide groove 422 form the above-mentioned oil guide channel. There is an interval 420 between the end of the first oil guide groove 421 and the end of the second oil guide groove 422. The interval 420 is the oil guide channel. Export.

In this embodiment, the upper reflecting plate 42 is in the shape of an inverted bowl as a whole, and the inner wall surface of the upper reflecting plate 42 is the above-mentioned working surface. An outwardly protruding connecting ring 423 is provided on the edge of the upper reflector 42 , and the connecting ring 423 is connected to the motor frame 47 by screws, so that the motor frame 47 and the upper reflector 42 separate the cavity of the housing 41 from top to bottom. Moreover, the upper reflector 42 includes a first unit reflector 424 and a second unit reflector 425 disposed inside and outside, and the first and second unit reflectors are connected through the above-mentioned connecting ring 423 . In this way, after the pot cover 40 is opened, the oil and water on the pot cover 40 can flow to the outlet along the first and second oil guide grooves, and then collect in the oil collecting groove 52 to realize the collection of oil and water, and further improve the sanitation in use. In order to exhaust the oily fumes generated during the working process, a first smoke exhaust port 411 is opened on the casing 41, and a second smoke exhaust port 426 is opened on the upper reflector 42. The first smoke exhaust port 411 and the second smoke exhaust port 426 They are connected by a smoke exhaust pipe 427 (the bottom of the smoke exhaust pipe 427 is connected to the upper reflection plate 42 and communicates with the second smoke exhaust port, and the top passes through the first smoke exhaust port 411 to discharge oil fume). In this way, the generated oil fume can be discharged to the outside through the smoke exhaust pipe 427 . In this embodiment, the exhaust pipe 427 is arranged obliquely.

As shown in Figure 18, the path of hot air circulation in this embodiment is: the hot air coming out from the air outlet 44B of the hot air blade 44 enters the pot body 10 along the pot cover 40, and flows along the inner wall of the pot body 10 to the oven. The pan 20 flows from the edge of the pan 20 to the middle of the pan 20 along the guide channel 24 , and under the negative pressure of the air inlet 44A of the hot air blade 44 , the hot air in the middle of the pan 20 passes through the oil fume filter assembly 49 sequentially 1. After the heating element 46 inhales the hot air vane 44, and then blows it out from the air outlet 44B of the hot air vane 44, completing a complete hot air cycle. Of course, part of the hot air will flow along the inner wall of the pot body 10 to the bottom of the grill pan 20 , and be sucked upward into the hot air blades 44 from the oil leakage hole 22 in the middle of the grill pan 20 . Therefore, a thermal circulation space for circulating hot air is formed between the pot body 10 and the working surface of the upper reflection plate 42 .

Hot air circulation will increase the temperature of the base 30. In order to realize the heat dissipation of the base 30, the base 30 in this embodiment includes an outer wall 31 and an inner wall 32, and the outer wall 31 and the inner wall 32 of the base 30 are hollow structures. , the upper end surface of the base 30 is provided with the third air inlet 30A corresponding to the second air inlet 47C, and the outer wall 31 of the base 30 is provided with the third air inlet 30B communicating with the third air inlet 30A (when the pot cover 40 When the cover is closed on the base 30, the lower end surface of the supporting ring 472 on the motor frame 47 is in contact with the upper end surface of the base 30); In this embodiment, the third vent 30B is located at the bottom and rear side of the base 30, a part of the cold air flows out from the bottom of the base 30 and enters the outside world, and another part of the cold air flows from the bottom of the base 30. The cold wind flowing out from the rear side of the base 30 can further cool down the rotating plate 53 .

Therefore, the cold air circulation path in this embodiment is: after the outside air is sucked into the motor frame 47 along the first air inlet 41A of the casing 41 and the second air inlet 47A of the motor frame 47, it flows from the second air inlet 47 under the action of the cold wind fan 43. A vent 47B is blown out, and a part of the cold air blown out from the first vent 47B enters the rotating plate 53 from the fourth air inlet 53A, cools the circuit board in the rotating plate 53, flows out from the fourth vent 53B, and blows to the outside; Another part of cold wind is blown out from the second vent 47C of the motor frame 47 and enters the inside of the base 30 from the third air inlet 30A of the base 30 to cool the base 30 to prevent overheating of the base, and then exits through the third vent 30B. .

In use, in order to avoid the situation of cooking without placing the pot body 10, a micro switch 60 for detecting whether the pot body 10 is put in and a transmission member 61 that can touch the micro switch 60 are also provided. As shown in Figures 18, 19, and 20, the micro switch 60 is a normally open structure, and the air fryer only works when the micro switch 60 is turned on, and the pot body 10 is provided with a trigger part that cooperates with the transmission part 61 , the trigger part acts on the transmission part 61 when the pot body 10 is located in the machine base so that the micro switch 60 is still in the open state, and the transmission part 61 resets and drives the micro switch 61 when the pot body 10 leaves the machine base. Switch 60 is closed. Since the base of this embodiment includes a base 30 and a pot cover 40, in order to detect whether the pot cover 40 is closed at the same time, the above-mentioned micro switch 60 and transmission member 61 are arranged on the pot cover 40 (in this implementation, the micro switch 60 The dynamic switch 60 and the transmission part 61 are arranged on the above-mentioned motor frame 47), and the above-mentioned trigger part acts on the transmission part 61 when the pot body 10 is located in the base 30 and the pot cover 40 is closed so that the micro switch 60 is still in the In the open state, the transmission member 61 resets and drives the micro switch 60 to close when the pot cover 40 is opened or/and the pot body 10 leaves the base 30 . In order to make the pot body 10 cooperate with the transmission member 61 stably, the upper edge of the pot body 10 is provided with an outturned edge 11 , and the trigger part is located on the outturned edge 11 to increase the contact surface of the pot body 10 .

The concrete structure of above-mentioned transmission member 61 is: transmission member 61 comprises the transmission rod 62 that is arranged vertically, is sleeved on the transmission rod 62 and makes transmission rod have the spring 63 that moves downwards all the time, the lower end of this transmission rod 62 and The above-mentioned trigger part cooperates to disengage or act on the trigger part, and the upper end cooperates with the contact 64 of the micro switch 60 to close or break away from the contact 64; when the lower end of the transmission rod 62 acts on the trigger part, the transmission rod 62 Moving upward, the upper end of the transmission rod 62 breaks away from the contact point 64 of the microswitch 60; under the state that the lower end of the transmission rod 62 breaks away from the trigger part, the transmission rod 62 moves downward and resets under the action of the spring 63, and the contact of the transmission rod 62 The upper end is in contact with the contact 64 of the micro switch 60 and drives the contact 64 to close. (In this embodiment, the upper end of the transmission rod 62 is convexly provided with a step 621, and the step 621 is located above the contact 64 of the microswitch 60. When the transmission rod 62 moves down, the step 621 and the contact 64 of the microswitch 60 contact, and drive the contact 64 to close; when the transmission rod 62 moves up, the step 621 disengages from the contact 64 of the microswitch 60, and the contact 64 is in an open state). In order to make the transmission rod 62 work stably, the transmission member 61 also includes a support seat 65 arranged on the motor frame 47 of the pot cover 40, the side of the support seat 65 is vertically provided with a guide groove 650, and the transmission rod 62 is set In the guide groove 650 and can move up and down along the guide groove 650 ; the micro switch 60 is arranged on the upper part of the support base 65 . In order to limit the moving distance of the transmission rod 62, the upper part of the guide groove 650 is provided with a first step 651 for limiting the highest position of the transmission rod 62, and the lower part is provided with a second step 652 for limiting the lowest position of the transmission rod 62. There is a flange 622 that cooperates with the first and second steps. The above-mentioned spring 63 is sleeved on the transmission rod 62 and is located in the guide groove 650. The lower end of the spring 63 is supported on the flange 622, and the upper end can abut against the first step 651. The spring 63 is in the process of moving the transmission rod 62 upwards. Being compressed, the transmission rod 62 always has a tendency to move downward. In this way, when the lower end of the transmission rod 62 breaks away from the trigger part (that is, the pot body 10 is not put into the base 30 or/and the pot cover 40 is not closed), the transmission rod 62 moves down under the action of the spring 63, and the transmission rod 62 moves downward. The upper end drives the micro switch 60 to close, and when the micro switch 60 is closed, the air fryer cannot perform cooking work. When the lower end of the transmission rod 62 abuts on the trigger part (that is, the pot body 10 is put into the base 30 and the pot cover 40 is closed), the transmission rod 62 moves up, and the upper end of the transmission rod 62 is away from the micro switch 60, and the micro switch 60 is slightly The automatic switch 60 is in the normally open state, and the air fryer can perform cooking work.

In order to prevent the pot lid 40 from being stuck or not tightly closed during the closing process, the lid joint surface of the pot lid 40 and the base 30 is an inclined plane with an inclination B≤30 degrees inclined to the rear and lower side. For details, please refer to Figure 17. And because components such as drive motor 45, heating element 46, hot air blade 44 are all arranged in pot cover 40, make pot cover 40 heavier, for avoiding that pot cover 40 accidentally pinches hands when opening, pot cover 40 and base 30 A torsion spring is provided at the rotating connection, that is, a torsion spring is provided on the rotating shaft 54 of the above-mentioned rotating mechanism 50, so that the pot cover 40 can be slowly opened under the action of the torsion spring after being opened. As shown in Figures 16 and 18, in order to detect the temperature in the pot, a temperature detection device 70 is also provided on the pot cover 40, the temperature detection device 70 can refer to the prior art, and will not be repeated here.

Claims (9)

1. An air fryer, comprising a machine base; a pot body (10) arranged in the machine base; a baking tray (20) arranged in the pot body (10); A hot air device, the hot air device is located above the baking pan (20); it is characterized in that: The baking pan (20) includes a disc-shaped body (21), which is provided with an oil leakage hole (22), and the upper end surface of the disc-shaped body (21) is provided with a plurality of protrusions at intervals. A raised piece (23), the upper end surface of each raised piece (23) integrally constitutes a support surface for placing food; a guide channel for hot air to flow through is formed between two adjacent raised pieces (23) (twenty four); The hot air device includes a hot air blade (44); a drive motor (45) that can drive the hot air blade (44) to rotate; and a heating element (46); the hot air blade (44) includes a rotating disk (441) and several blades (442), the blades (442) protrude downwards on the lower end surface of the rotating disk (441) and are arranged at intervals around the edge of the rotating disk (441), and each blade (442) is arranged along the rotating disk (441) ) is obliquely arranged in the direction of rotation, an air outlet (44b) capable of rotating the passing hot air is formed between two adjacent blades (442), and an air supply outlet (44b) is formed between the lower end surface of the turntable (441) and each blade (442). Air inlet (44A) for hot air to enter. 2. The air fryer according to claim 1, characterized in that: the protruding pieces (23) are elongated structures, and each protruding piece (23) surrounds the outer edge of the middle part of the disc-shaped body (21) Distributed radially; between two adjacent protrusions (23) is formed the above-mentioned guide channel (24) for hot air to flow from the outer edge of the disc-shaped body (21) to the middle. 3. The air fryer according to claim 2, characterized in that: each of the raised pieces (23) is bent clockwise or counterclockwise. 4. The air fryer according to claim 2, characterized in that: the disc-shaped body (21) has a structure with a low middle part and a high outer edge, and the oil leakage hole (22) is provided in the disc-shaped body (21) ) in the middle. 5. The air fryer according to claim 4, characterized in that: the oil leakage hole (22) is located at the center of the disc-shaped body (21) and several concentric holes with the center of the disc-shaped body (21) as the center On the circumference line, the inner end of the guide channel (24) corresponds to the oil leakage hole (22). 6. The air fryer according to claim 1, characterized in that: the hot air blade (44) also includes an air guide ring (443), and the air guide ring (443) is connected to the lower end of each blade (442). department connected. 7. The air fryer according to claim 1, characterized in that: the blades (442) and the radial direction of the turntable (441) are inclined at 20 to 80 degrees; the number of the blades (442) is at least 10 tablets. 8. The air fryer according to claim 1, characterized in that: a handle (25) is provided on the upper end surface of the disc-shaped body (21), and a handle (25) is provided on the top of the base to support the handle ( 25) A support (51) to make the disc-shaped body (21) stand upright. 9. The air fryer according to claim 8, characterized in that: an oil collecting tank (52) for supporting the baking pan (20) and collecting oil and water on the baking pan (20) is arranged on the bottom of the machine base.