Air fryer with improved heating effect

Abstract

The utility model relates to the technical field of household appliances, and particularly design a kind of air fryer of promotion heating effect, including the kettle body assembly of the shell, inner container and basket of frying by shell, air inlet and air outlet and fan and heating element being arranged on shell;The utility model is formed with heat preservation cavity between shell and inner container, heat preservation cavity is connected between air inlet and cooking cavity, when fan starts, airflow enters heat preservation cavity from air inlet and carries the heat of heat preservation cavity into cooking cavity;The utility model when fan starts, airflow flows in heat preservation cavity, and after absorbing the heat in heat preservation cavity, it is sent back cooking cavity and uses, to realize the recycling of heat energy.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to an air fryer that improves heating effect. Background Technology

[0002] Air fryers are one of the most mainstream household appliances. They mainly use air instead of the hot oil in a frying pan. Through convection and a mechanical fan, hot air is circulated at high speed around the food to cook it. After cooking in an air fryer, the food achieves a similar effect to deep-frying.

[0003] Current air fryers have the following drawbacks in the cooking process:

[0004] First, during cooking, the heat inside the air fryer is lost from the inside out. Current air fryers cannot effectively utilize this heat loss from the inside out, resulting in energy waste.

[0005] Secondly, the space inside the air fryer basket is relatively fixed. When cooking food of different volumes, heat loss will occur. That is, when cooking food in an air fryer, the food should occupy about half of the basket space. When the basket space is much larger than the total amount of food to be cooked, the hot air circulation path will be longer. Therefore, it is easy to cause uneven heating or longer cooking time.

[0006] In conclusion, improvements need to be made to existing air fryers. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an air fryer with improved heating effect, and to solve the problems mentioned in the background technology.

[0008] The technical solution of this utility model is achieved as follows: an air fryer that improves heating effect, comprising:

[0009] The pot assembly consists of an outer shell, an inner liner, and a frying basket; the inner liner is fixed inside the outer shell and forms a cooking cavity; the outer shell has an opening through which the frying basket can enter the cooking cavity and cooperate with the outer shell and / or the inner liner.

[0010] Both the air inlet and the air outlet are formed on the outer shell, and the air inlet, the cooking cavity and the air outlet are connected in sequence;

[0011] The fan is installed inside the pot body assembly and is used to allow airflow to enter the cooking cavity from the air inlet when the pot is started.

[0012] At least one heating element is installed at the air outlet of the fan and is used to heat the airflow. A heat preservation cavity is formed between the outer shell and the inner liner, and the heat preservation cavity is connected between the air inlet and the cooking cavity.

[0013] When the fan starts, the airflow enters the insulation chamber through the air inlet and carries the heat from the insulation chamber into the cooking chamber.

[0014] By adopting the above technical solution:

[0015] The air fryer of this invention forms a heat preservation cavity between the outer shell and the inner liner, and the heat preservation cavity is located between the air inlet and the cooking cavity. When the fan is turned on, the airflow enters the heat preservation cavity from the air inlet and is blown into the cooking cavity by the fan before being discharged from the air outlet. Therefore, when the air fryer is in use, as the hot air dissipates from the inside out, the airflow flowing in the heat preservation cavity will recover some of the heat and bring it back to the cooking cavity for reuse, thereby reducing energy waste.

[0016] Preferably, the frying basket comprises:

[0017] The basket rack features a one-piece molded handle;

[0018] The basket frame is fixedly connected to the basket rack.

[0019] The blasting basket frame includes at least a first frame and a second frame, wherein the volume of the second frame is smaller than the volume of the first frame.

[0020] By adopting the above technical solution:

[0021] The frying basket of this invention is configured with multiple frames of different sizes and volumes. When cooking food of a corresponding volume, a suitable frame can be selected to store the food, and the frame containing the food is placed into the first frame (the frame with the largest volume in this invention). Then, the frying basket is sent into the air fryer, thereby coordinating the storage space of the frying basket with the volume of the food, so that the food can be heated and cooked better.

[0022] Preferably, the first frame includes:

[0023] The first body is fixedly connected to the blasting basket frame and has a recessed first chamber;

[0024] The support is located on the wall of the first chamber.

[0025] Preferably, the support portion is integrally formed on the first body and is a support block extending circumferentially.

[0026] Preferably, the second frame includes:

[0027] The second body, and the recessed area forms a second chamber;

[0028] The limiting part is provided on the outer side wall of the second body;

[0029] The second body can be placed into the first chamber and supported on the support by the limiting part.

[0030] Preferably, the limiting part is integrally formed on the second body and is a limiting block that extends circumferentially.

[0031] By adopting the above technical solution:

[0032] The support portion provided on the first frame of this utility model can be used to place the second frame, so that the first frame can support the second frame.

[0033] Preferably, the first chamber has at least one slot on its wall; the second body and / or the limiting part has a plug that is adapted to the slot.

[0034] Preferably, the frying basket frame is provided with a rotatable limiting structure, the limiting structure having at least a movable limiting rod, the limiting rod being able to move horizontally and extend into the first chamber;

[0035] When the limiting structure rotates clockwise or counterclockwise, the control limiting rod moves horizontally back and forth.

[0036] Preferably, the limiting structure includes:

[0037] The movable cavity is formed inside the blasting basket frame, and its two ends penetrate the blasting basket frame respectively;

[0038] The penetration opening is formed on the first body;

[0039] The threads are formed on the inner wall of the moving cavity, thus dividing the moving cavity into a threaded cavity and a rotating cavity.

[0040] The limiting rod includes:

[0041] The screw shaft is adapted to the thread and moves within the thread cavity;

[0042] The movable shaft is integrally formed with the screw shaft, and one end can pass through the through-hole;

[0043] The rotating shaft is rotatably disposed in the rotating cavity and is telescopically coupled to one end of the screw shaft;

[0044] A knob is installed at the end of the rotating shaft away from the screw shaft.

[0045] By adopting the above technical solution:

[0046] This utility model also includes a limiting structure, which can limit the second frame when it is placed inside the first frame, thereby allowing the second frame to be installed more stably inside the first frame.

[0047] Furthermore, other advantages of this invention will be demonstrated in the embodiments section of this invention, thereby making the beneficial effects of this invention even more significant. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of the structure of a specific embodiment 1 of the present utility model;

[0050] Figure 2 for Figure 1 Another perspective illustration;

[0051] Figure 3 This is a schematic diagram of the structure of the frying basket in specific embodiment 1 of this utility model;

[0052] Figure 4 for Figure 1 A schematic diagram of the structure hidden behind the exploded basket;

[0053] Figure 5 for Figure 1 AA section view in the middle;

[0054] Figure 6 for Figure 1 BB section view in the middle;

[0055] Figure 7 This is a schematic diagram of the structure of a specific embodiment 2 of the present utility model;

[0056] Figure 8 for Figure 7 CC section view in the middle;

[0057] Figure 9 for Figure 7 DD section entity in;

[0058] Figure 10 for Figure 9 Enlarged view of part A in the image;

[0059] Figure 11 This is an exploded view of the limiting structure in specific embodiment 2 of this utility model;

[0060] Figure 12 This is a cross-sectional schematic diagram of the outer shaft in specific embodiment 2 of this utility model;

[0061] Figure 13This is a cross-sectional schematic diagram of the knob in specific embodiment 2 of this utility model. Detailed Implementation

[0062] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0063] Example 1

[0064] like Figures 1-6 As shown, this embodiment discloses an air fryer that improves heating effect, including:

[0065] The pot assembly consists of an outer shell 10, an inner liner 11, and a frying basket 12; the inner liner 11 is fixed inside the outer shell 10 and forms a cooking cavity 110; the outer shell 10 has an opening, through which the frying basket 12 can enter the cooking cavity 110 and cooperate with the outer shell 10.

[0066] The air inlet 13 and the air outlet 14 are both formed on the outer shell 10, and the air inlet 13, the cooking cavity 110 and the air outlet 14 are connected in sequence.

[0067] The fan 15 is installed inside the pot body assembly and is used to allow airflow to enter the cooking chamber 110 from the air inlet 13 when the pot is started.

[0068] The heating element 16 (an electric heating tube) is installed at the air outlet of the fan 15 and is used to heat the airflow. A heat preservation cavity 20 is formed between the outer shell 10 and the inner liner 11. The heat preservation cavity 20 is connected between the air inlet 13 and the cooking cavity 110. The heat preservation cavity is the gap formed between the outer shell and the inner liner 11.

[0069] In this embodiment, the heat insulation cavities are distributed between the bottom of the outer shell and the inner liner, and also between the side wall of the outer shell and the inner liner. The heat insulation cavities at each location are interconnected, and the heat insulation cavity located at the bottom of the inner liner is connected to the air inlet.

[0070] In this embodiment, a fan installation area is also provided inside the outer shell, where the fan and electric heating tube are installed. Half of the fan is located above the electric heating tube, and the fan installation area is connected to the heat insulation cavity on the side of the inner liner.

[0071] When the fan 15 is started, the airflow enters sequentially from the air inlet 13 into the bottom insulation chamber 20, the side insulation chamber 20, the fan installation area, and the cooking chamber 110, and then exits from the air outlet 14. In this embodiment, the airflow carries the heat from the insulation chamber 20 into the cooking chamber 110 as it passes through the insulation chamber 20.

[0072] In this embodiment, the outer casing 10 is provided with a power cord 10a for supplying power to the fan and the electric heating element, and a control knob 10c for controlling the start or stop of the fan and the electric heating element. In this embodiment, when not in use, the power cord can be wound around the power cord winding rack 10b on the back of the outer casing 10.

[0073] In this embodiment, the air inlet 13 is located at the bottom of the outer shell 10, the air outlet 14 is located at the back of the outer shell, the inner liner 11 has an opening 11k communicating with the air outlet 14, the air outlet is located on the same side as the power cord winding rack 10b, a filter rack 14a is installed at the air outlet 14, and the filter rack 14a has a plurality of filter ports 14b communicating with the air outlet.

[0074] In this embodiment, a support leg 10f is fixedly connected to the bottom of the outer casing 10.

[0075] In this embodiment, the frying basket 12 includes a frying basket frame 120 and a frying basket frame 121 fixed on the frying basket frame 120. A handle 122 is fixedly connected to the frying basket frame 120, and a chamber 123 is provided through the frying basket frame 120. When the frying basket 12 is engaged with the opening, the chamber 123 is part of the heat preservation chamber 20.

[0076] Participate Figures 1-6 The operating principle of this embodiment is as follows:

[0077] During cooking, the food to be cooked is placed in the frying basket frame 121 of the frying basket, and the frying basket is then placed into the cooking chamber, such as... Figure 1 Status (illustrated as the frying basket being placed inside the cooking cavity).

[0078] Then, plug in the power and control the fan and electric heating element by turning the control knob. The airflow enters the insulation cavity from the air inlet at the bottom of the outer shell, moves upward along the insulation cavity into the fan installation area, and is finally sent into the cooking cavity. The airflow passing through the electric heating element is heated by the electric heating element to form hot air, thereby completing the cooking of the food in the cooking cavity.

[0079] Example 2 differs from Example 1 in that:

[0080] like Figures 7-13 As shown, the frying basket in this embodiment includes: a frying basket frame 120, which has an integrally formed handle 122;

[0081] The basket frame is fixedly connected to the basket frame 120.

[0082] The basket frame includes a first frame 31 and a second frame 32, wherein the volume of the second frame 32 is smaller than the volume of the first frame 31.

[0083] In this embodiment: the first frame 31 includes:

[0084] The first body 310 is fixedly connected to the blasting basket frame 120 and has a recessed first chamber 310a;

[0085] The support portion is provided on the cavity wall of the first chamber 310a. In this embodiment, the support portion is integrally formed on the first body 310 and is a circumferentially extending support block 311.

[0086] In this embodiment: the second frame 32 includes:

[0087] The second body 320 has a recessed second chamber 320a;

[0088] The limiting part is provided on the outer side wall of the second body 320;

[0089] The second body 320 can be placed into the first chamber 310a and supported on the support by the limiting part. In this embodiment, the limiting part is integrally formed on the second body 320 and is a circumferentially extending limiting block 321.

[0090] In this embodiment, a slot 40 is provided on the cavity wall of the first chamber 310a; a plug 41 adapted to the slot 40 is provided on the limiting block 321.

[0091] In this embodiment, the frying basket frame 120 is provided with a rotatable limiting structure (in this embodiment, the rotatable part of the limiting structure is the rotating shaft and the knob), and the limiting structure has a movable limiting rod 50, which can move horizontally and extend into the first chamber 310a;

[0092] When the limiting structure rotates clockwise or counterclockwise, the control limiting rod 50 moves horizontally back and forth.

[0093] In this embodiment, the frying basket frame 120 is recessed with a groove 51b, the bottom of the groove is provided with three first threaded holes 51c, and an installation cavity 51 is recessed from the bottom of the groove 51b. The first body 310 is provided with a through opening 52, and the installation cavity 51 and the through opening 52 are coaxially arranged.

[0094] In this embodiment, the mounting cavity 51 has two ends that pass through the blast basket frame 120, and two cavity wall limiting grooves 51a are provided on the inner side wall of the mounting cavity 51.

[0095] The limiting structure in this embodiment includes:

[0096] The driving body 60 has an outer wall limiting rib 60a that is adapted to the cavity wall limiting groove 51a on its outer side wall. The diameter of the cavity opening of the mounting cavity 51 near the through opening 52 is smaller than the diameter of the driving body 60. Therefore, when the driving body 60 is inserted into the cavity opening of the mounting cavity 51 at the bottom of the groove 51b, the insertion is completed when one end of the driving body 60 abuts against the other side of the mounting cavity. Subsequently, the driving body is fixed in the mounting cavity by the first fixing plate 62 and the first bolt 63. The first fixing plate 62 is annular and has an opening corresponding to the first threaded hole 51c for the first bolt 63 to pass through. When the first fixing plate is inserted into the groove 51b, the first bolt 63 passes through the opening on the first fixing plate 62 and cooperates with the first threaded hole 51c to complete the fixing of the driving body 60.

[0097] The movable cavity is formed inside the drive body 60 and extends axially through both ends of the drive body 60;

[0098] A thread 64 is formed on the inner wall of the movable cavity, thereby dividing the movable cavity into a threaded cavity 651 and a rotating cavity 652.

[0099] The limiting rod 50 includes:

[0100] The screw shaft 500 is adapted to the thread and moves within the thread cavity 651. That is, the screw shaft 500 can cooperate with the thread cavity 651, and the screw shaft 500 can move forward or backward within the thread cavity when it rotates.

[0101] The movable shaft 501 is integrally formed with the screw shaft 500, and one end can pass through the through-hole 52;

[0102] The rotating shaft 502 is rotatably disposed in the rotating cavity 652 and is telescopically engaged with one end of the screw shaft 500 (the telescopic engagement is achieved through the inner and outer shafts).

[0103] A knob 70 is installed at the end of the rotating shaft 502 away from the screw shaft 500.

[0104] In this embodiment, the end of the screw shaft 500 away from the moving shaft 501 is integrally formed with an inner shaft 80, and the outer wall of the inner shaft 80 is provided with a first limiting rib 81. The end of the rotating shaft 502 near the moving shaft 501 is integrally formed with an outer shaft 83, and the outer shaft 83 is recessed to provide a shaft cavity 84 for the inner shaft 80 to be inserted. The inner wall of the shaft cavity 84 is provided with a first limiting groove 84a that matches the first limiting rib 81.

[0105] In this embodiment, the end of the rotating cavity 652 away from the through opening is open, and the diameter of the cavity opening of the rotating cavity 652 communicating with the threaded cavity 651 is smaller than the diameter of the outer shaft 83. The cavity opening of the rotating cavity 652 can allow the inner shaft to pass through. The end of the rotating cavity 652 away from the threaded cavity 651 is fixed with a second fixing plate 86 by a second bolt 85. The cavity opening of the rotating cavity 652 is provided with a second threaded hole 87 that is adapted to the second bolt 85. In this embodiment, the structure of the second fixing plate is the same as that of the first fixing plate, except that the diameter of the second fixing plate is smaller than that of the first fixing plate.

[0106] In this embodiment, when assembling the drive body, the inner shaft of the screw shaft is inserted into one end of the threaded cavity of the drive body 60, and the screw shaft is rotated so that part of the screw shaft enters the threaded cavity. At this time, the inner shaft is inserted into the rotating cavity. Subsequently, the outer shaft of the rotating shaft is inserted into the rotating cavity (when inserted, the first limiting groove on the outer shaft is aligned with the first limiting rib on the inner shaft). After the outer shaft is fully inserted into the rotating cavity, the second fixing plate is installed, and the rotating shaft is located outside the rotating cavity through the opening in the middle of the second fixing plate. The outer shaft is restricted in the rotating cavity by the second fixing plate. At this time, the outer shaft can be controlled to rotate by the rotating shaft, but it cannot move axially (that is, move forward or backward).

[0107] In this embodiment, a second limiting rib 90 is provided on the outer wall of the rotating shaft 502, and a mating cavity 700 is provided on the mating surface of the knob 70 and the rotating shaft 502. The mating cavity 700 is for one end of the rotating shaft 502 to be inserted, and a second limiting groove 701 is provided on the cavity wall of the mating cavity 700.

[0108] Participate Figure 7 , Figures 10-13 As shown, the installation sequence of the limiting structure in this embodiment is as follows:

[0109] The limit rod and the drive body are installed first, then the rotating shaft and the drive body are installed. The drive body is then placed into the mounting cavity and fixed with the first bolt. Finally, the knob is installed on one end of the rotating shaft to complete the installation.

[0110] Participate Figures 7-13 In this embodiment, when using the food, the appropriate frame is selected according to the size of the food to be cooked. For example, the first frame can be selected for large food, and the second frame can be selected for small food.

[0111] When using the second frame, insert the plug at one end of the second frame into the slot, then place the second frame into the first frame. Then, rotate the knob clockwise to drive the rotating shaft to rotate. The rotating shaft in turn causes the screw shaft to rotate. When the screw shaft rotates clockwise, the screw shaft moves forward in the direction of the through-hole and pushes one end of the moving shaft 501 against the second frame (in this embodiment, the moving shaft 501 presses against the edge of the second frame), thereby fixing the second frame onto the first frame and improving the stability of the second frame during cooking.

[0112] After cooking is complete, rotate the knob counterclockwise to separate the moving shaft from the second frame, and the second frame can be removed from the first frame.

[0113] It is worth mentioning that in other embodiments, when cooking food in the air fryer, a baking tray (also called an oil separator tray) can be placed in the frying basket and the food can be placed on the baking tray. Since the baking tray is a mature existing technology, it will not be described in detail in this embodiment.

[0114] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air fryer with improved heating effect, comprising: The pot assembly consists of an outer shell (10), an inner liner (11), and a frying basket (12); the inner liner (11) is fixed inside the outer shell (10) and forms a cooking cavity (110); an opening is formed on the outer shell, through which the frying basket (12) can enter the cooking cavity (110) and cooperate with the outer shell (10) and / or the inner liner (11); The air inlet (13) and the air outlet (14) are both formed on the outer shell (10), and the air inlet (13), the cooking cavity (110) and the air outlet (14) are connected in sequence; A fan (15) is installed inside the pot body assembly and is used to allow airflow to enter the cooking chamber (110) from the air inlet (13) when the pot is started. At least one heating element (16) is installed at the air outlet of the fan (15) and is used to heat the airflow, characterized in that: a heat preservation cavity (20) is formed between the outer shell (10) and the inner liner (11), and the heat preservation cavity (20) is connected between the air inlet (13) and the cooking cavity (110); When the fan (15) is started, the airflow enters the heat preservation chamber (20) from the air inlet (13) and carries the heat of the heat preservation chamber (20) into the cooking chamber (110).

2. An air fryer for improving heating effect according to claim 1, characterized in that: The frying basket (12) includes: The basket rack (120) has a one-piece molded handle (122). The basket frame is fixedly connected to the basket rack (120); The basket frame includes at least a first frame (31) and a second frame (32), wherein the volume of the second frame (32) is smaller than the volume of the first frame (31).

3. An air fryer for improving heating effect according to claim 2, characterized in that: The first frame (31) includes: The first body (310) is fixedly connected to the blast basket frame (120) and has a recessed first chamber (310a). The support is located on the cavity wall of the first chamber (310a).

4. An air fryer for improving heating effect according to claim 3, characterized in that: The support is integrally formed on the first body (310) and is a circumferentially extending support block (311).

5. An air fryer for improving heating effect according to claim 3 or 4, characterized in that: The second frame (32) includes: The second body (320) has a recessed second chamber (320a). A limiting part is provided on the outer side wall of the second body (320); The second body (320) can be placed into the first chamber (310a) and supported on the support by the limiting part.

6. An air fryer for improving heating effect according to claim 5, characterized in that: The limiting part is integrally formed on the second body (320) and is a circumferentially extending limiting block (321).

7. An air fryer for improving heating effect according to claim 5, characterized in that: The first chamber (310a) has at least one slot (40) on its cavity wall; the second body and / or limiting part has a plug (41) adapted to the slot (40).

8. An air fryer for improving heating effect according to claim 7, characterized in that: The frying basket frame (120) is provided with a rotatable limiting structure, the limiting structure having at least a movable limiting rod (50), the limiting rod (50) being able to move horizontally and extend into the first chamber (310a); When the limiting structure rotates clockwise or counterclockwise, the control limiting rod (50) moves horizontally back and forth.

9. An air fryer for improving heating effect according to claim 8, characterized in that: The limiting structure includes: The movable cavity is formed inside the blasting basket frame, and its two ends penetrate the blasting basket frame respectively; A through-hole (52) is formed on the first body (310); A thread (64) is formed on the inner wall of the movable cavity, thereby dividing the movable cavity into a threaded cavity (651) and a rotating cavity (652). The limiting rod (50) includes: The screw shaft (500) is adapted to the thread and moves within the thread cavity (651); The movable shaft (501) is integrally formed with the screw shaft (500), and one end can pass through the through-hole (52); The rotating shaft (502) is rotatably disposed in the rotating cavity (652) and is in telescopic cooperation with one end of the screw shaft (500); A knob (70) is installed at the end of the rotating shaft (502) away from the screw shaft (500).

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