Air duct system and air fryer with same

Abstract

The utility model relates to an air duct system and an air fryer with the air duct system, comprising a cooking main body which is provided with a heating chamber; the hot air system is arranged in the cooking main body, communicates with the heating chamber, heats internal air, drives the internal air to the heating chamber and processes food in the heating chamber; an air duct structure is arranged between the heating chamber and the hot air system, the air duct structure at least comprises an air outlet channel and two air inlet channels, and a first air inlet path and a second air inlet path which enter the heating chamber along the two air inlet channels are vertically arranged. Compared with the prior art, the heating device has the advantages that airflow can be rapidly heated by arranging the special air duct structure, meanwhile, two air inlet parts are arranged in the heating cavity, hot air processing is carried out on different positions of the heating cavity, the temperature in the heating cavity is rapidly increased, the heating efficiency of all the parts in the heating cavity is consistent, and the heating efficiency of the heating cavity is improved. The food processing efficiency is improved, and the processed food tastes consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of air fryers, in particular to an air duct system of an air fryer and an air fryer with the same. Background Art

[0002] An air fryer is a machine that can "fry" with air. It mainly uses air to replace the hot oil in the original frying pan to cook food; at the same time, the hot air also blows away the moisture on the surface of the food, making the ingredients achieve an effect similar to frying.

[0003] The Chinese utility model patent with the authorization announcement number CN210185391U discloses a cooking appliance, which includes: an inner container, an outer shell, a heat preservation cover, and a pot lid; the heat preservation cover is located between the inner container and the outer shell, the pot lid is hinged to the outer shell, and the cooking appliance further includes an air flow heating device, which includes an air generating device, an air flow channel, an air inlet, and an air outlet; the main part of the air flow channel is located between the outer shell and the heat preservation cover, the air inlet is located on the outer shell, the air generating device is located below the heat preservation cover, and the air generating device makes the air at the air inlet flow from the air flow channel to the air outlet and vertically downward or obliquely downward towards the inside of the inner container; there is an exhaust hole on the pot lid. In the present utility model, the air for air flow heating flows unidirectionally from outside the appliance to the inner container, and the heated air flow is directly discharged outside the appliance, so that there is less oil fume in the pot liner, the air for heating food is fresh, and the cooked food has a good taste and is hygienic.

[0004] The defect of the cooking appliance in the above-mentioned prior art is that the air flow only enters the cooking chamber from one position and can change the flow direction only by contacting the chamber wall in the cooking chamber to heat other positions in the chamber. This results in that the air flow entering from the middle above the chamber turns at the bottom of the heating chamber and flows towards both sides, so that in the entire space of the heating chamber, the temperature in the middle is much higher than that on the side. As a result, the food processing efficiency in the middle is much higher than that of the surrounding food, resulting in inconsistent food taste and greatly reducing the consumer's satisfaction in eating. Summary of the Utility Model

[0005] In order to solve the above problems existing in the prior art, the present utility model provides an air duct system and an air fryer with the same.

[0006] The above problems of the present utility model are solved by the following technical solutions:

[0007] An air duct system includes

[0008] a cooking main body provided with a heating chamber;

[0009] A hot air system, which is arranged inside the cooking main body and communicated with the heating chamber, heats the internal air and drives it to the heating chamber to process the food in the heating chamber;

[0010] A duct structure is provided between the heating chamber and the hot air system. The duct structure at least includes an air outlet channel and two air inlet channels, and the first air inlet path and the second air inlet path entering the inside of the heating chamber along the two air inlet channels are vertically arranged.

[0011] The further setting of the above technical solution is: the first air inlet path enters from the top of the heating chamber and vertically enters the food processing part in the heating chamber;

[0012] The second air inlet path enters from the lower side of the heating chamber and horizontally enters the food processing part in the heating chamber.

[0013] The further setting of the above technical solution is: a top cover is provided on the top of the heating chamber, and air guiding ribs are arranged on the top cover facing the inside of the heating chamber; the air guiding ribs stop and reverse the airflow entering the top of the heating chamber in the horizontal direction.

[0014] The present utility model also provides an air fryer, which includes the above duct system and also includes a pot body. The pot body is provided with an open side, and at least one side wall is provided with an air inlet area and an air outlet area; the open side and the air inlet area are respectively communicated with the two air inlet channels;

[0015] The air outlet area is communicated with the air outlet channel.

[0016] The further setting of the above technical solution is: on two symmetrical inner walls of the pot body, holding parts are convexly arranged, and a partition board is detachably arranged on the holding parts;

[0017] The partition board divides the inner cavity of the pot body into upper and lower cooking areas;

[0018] The air outlet area is respectively communicated with the two cooking areas.

[0019] The further setting of the above technical solution is: a wind guiding plate is arranged between the heating chamber and the hot air system, and a first air inlet and a second air inlet corresponding to the two air inlet channels are arranged on the wind guiding plate;

[0020] The first air inlet is located in the upper part of the wind guiding plate, and the second air inlet is located in the lower part of the wind guiding plate.

[0021] The further setting of the above technical solution is: the hot air system includes an air flow driving component and a heating component, and at least two air outlet parts are arranged on the air flow driving component and correspond to the first air inlet and the second air inlet respectively.

[0022] A further setting of the above technical solution is that the air outlet channel at least includes an export path and an import path;

[0023] The export path exports the air flow from the heating chamber to the heating component;

[0024] The import path imports the air flow from the heating component to the air flow driving component.

[0025] A further setting of the above technical solution is that the air outlet channel further includes a heating path, and the direction of the heating path is from the outer edge of the heating component to the center of the heating component.

[0026] A further setting of the above technical solution is that an air outlet part is further provided on the air guide plate, and the air outlet part corresponds to the outer side area of the heating component.

[0027] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting a special air duct structure, the air flow can be rapidly heated. At the same time, two air inlet parts are provided in the heating chamber to perform hot air processing on different positions of the heating chamber, so that the inside of the heating chamber is rapidly heated, and the heating efficiency of each part in the heating chamber is consistent, improving the food processing efficiency and the food processing taste is consistent. At the same time, it is convenient for consumers to control the processing time and processing temperature. Description of the Drawings

[0028] Figure 1 It is a schematic diagram of the moving path of the hot air flow inside the heating chamber.

[0029] Figure 2 It is a schematic diagram of the structure of the top cover.

[0030] Figure 3 It is a schematic diagram of the structure of the air guide plate.

[0031] Figure 4 It is a schematic diagram of the exploded structure of the hot air system.

[0032] Figure 5 It is a schematic diagram of the structure of the hot air shell.

[0033] Figure 6 It is an isometric sectional view of this embodiment.

[0034] Figure 7 It is a schematic diagram of the moving path of the air flow in the air outlet channel.

[0035] Figure 8 It is a schematic diagram of the structure of Embodiment 2.

[0036] Figure 9 It is a schematic diagram of the separated structure of the cooking main body and the pot body in Embodiment 2.

[0037] Figure 10 It is a schematic structural diagram of the pot body.

[0038] Figure 11 It is a schematic cross-sectional structural diagram of the pot body.

[0039] Figure 12 It is a schematic structural diagram of the partition plate installed in the pot body.

[0040] Marked on the attached drawing: 100, cooking main body; 101, heating chamber;

[0041] 200, pot body; 210, air inlet area; 220, air outlet area; 230, supporting part;

[0042] 300, hot air system; 310, heating component; 320, air flow driving component; 330, hot air shell; 331, air outlet slot; 340, heat dissipation air wheel; 350, motor;

[0043] 400, air guide plate; 410, air guide surface; 401, first air inlet; 402, second air inlet; 411, air guide piece; 403, air outlet hole;

[0044] 500, top cover; 510, air guide rib;

[0045] 600, partition plate. Detailed implementation mode

[0046] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following will, in conjunction with the attached drawings and preferred embodiments, detail the specific implementation mode, structure, features and their effects of the present utility model as follows.

[0047] As Figures 1-12 shown, the following embodiments disclose an air duct system and an air fryer having the same.

[0048] Embodiment 1

[0049] This embodiment discloses an air duct system of an air fryer, including

[0050] a cooking main body 100, which is provided with a heating chamber 101;

[0051] a hot air system 300, which is arranged in the cooking main body 100 and is communicated with the heating chamber 101, heats the internal air and drives it to the heating chamber 101 to process the food in the heating chamber 101;

[0052] A duct structure is provided between the heating chamber 101 and the hot air system 300. The duct structure includes at least one air outlet channel and two air inlet channels, and the first air inlet path and the second air inlet path entering the interior of the heating chamber 101 along the two air inlet channels are vertically arranged.

[0053] The above is the basic solution of this embodiment.

[0054] Specifically referring to Figure 1 As shown, the hot air system 300 drives the air inside the main body 100, enters the interior of the hot air system 300 through the air outlet channel to form a hot air flow, and the hot air flow enters the heating chamber 101 from the two air inlet channels respectively, and moves along the first air inlet path and the second air inlet path inside the heating chamber 101 to perform hot air processing on the food inside the heating chamber 101.

[0055] Based on the above settings, in this embodiment, the first air inlet path enters from the top of the heating chamber 101 and enters the food processing part of the heating chamber 101 vertically downward;

[0056] The second air inlet path enters from the lower side of the heating chamber 101 and enters the food processing part of the heating chamber 101 horizontally.

[0057] The hot air flow enters the heating chamber 101 from top to bottom along the first air inlet path. At the same time, another hot air flow enters the bottom of the heating chamber 101 horizontally along the second air inlet path. Thus, hot air flows enter the bottom and upper spaces of the heating chamber 101 at the same time, the temperature inside the heating chamber 101 rises rapidly, the temperature rise efficiency of each part is the same, the food processing efficiency is improved, and at the same time, the food processing taste at each position inside the heating chamber is the same, and it is convenient for consumers to control the processing time and processing temperature.

[0058] In the settings of this embodiment, the hot air system 300 is arranged on the side of the heating chamber 101 and enters from the side of the heating chamber 101. Therefore, in order to realize the vertical movement direction of the first air inlet path, a top cover 500 is provided on the top of the heating chamber 101, and a wind guiding rib 510 is arranged on the top cover 500 facing the inside of the heating chamber 101; the wind guiding rib 510 stops and reverses the air flow entering the top of the heating chamber 101 in the horizontal direction.

[0059] Referring to Figure 2 As shown, when the hot air flow just enters the heating chamber 101, it has a horizontal movement path. When it moves horizontally to the position of the wind guiding rib 510, it impacts the side wall of the wind guiding rib 510, thereby changing its movement direction and starting to move downward.

[0060] Preferably, in this embodiment, the air guiding ribs 510 are arranged in sequence along the air inlet direction, and the thickness increases in sequence along the air inlet direction.

[0061] Specifically, referring to Figure 2 As shown, in this embodiment, the air guiding rib 510 closest to the first air inlet area has the smallest thickness, and the farther away from the first air inlet area, the greater the thickness of the air guiding rib 510; with such a setting, when moving to the area of the nearest air guiding rib 510, only the hottest air flow at the top can come into contact with the first air guiding rib 510 and change its moving direction; the hot air flow below the first air guiding rib 510 can still move horizontally until it encounters an air guiding rib 510 with which it can come into contact.

[0062] Thus, it is formed that: at different positions of the air guiding ribs 510, a part of the hot air flow changes its moving direction and moves downward, so as to achieve the uniformity of the hot air flow inside the heating chamber 101.

[0063] Embodiment 2

[0064] This embodiment provides an air fryer with the air duct system in Embodiment 1, and its specific implementation is as follows:

[0065] An air fryer includes the air duct system of Embodiment 1, and further includes a pot body 200. The pot body 200 is provided with an open side, and at least one side wall is provided with an air inlet area 210 and an air outlet area 220; the open side and the air inlet area 210 are respectively communicated with two air inlet channels;

[0066] The air outlet area 220 is communicated with the air outlet channel.

[0067] Specifically referring to Figures 8-10 As shown, the pot body 200 is slidably arranged in the heating chamber 101 of the cooking main body 100, and the open side of the pot body 200 is the upper end face;

[0068] The inner side surface of the pot body 200 is provided with an air inlet area 210 and an air outlet area 220, and both the air inlet area 210 and the air outlet area 220 are arranged by arranging air holes.

[0069] Moreover, in order to cooperate with the air inlet channel and the air outlet channel, in this embodiment, the air inlet area 210 of the pot body 200 is arranged at the lower end of the pot wall, and the air outlet area 220 is arranged at the middle part of the pot wall.

[0070] After the hot air flow enters from the open side of the pot body 200 and the air inlet area 210 at the lower end of the pot body 200, it moves in the upper and lower parts of the inner cavity of the pot body 200 respectively. When moving to the middle part, the two hot air flows are mixed and output from the air outlet area 220.

[0071] In this embodiment, holding parts 230 are protrudingly arranged on two symmetrical inner walls of the pot body 200, and a partition plate 600 is detachably arranged on the holding parts 230;

[0072] The partition plate 600 divides the inner cavity of the pot body 200 into upper and lower cooking areas;

[0073] The air outlet area 220 communicates with the two cooking areas respectively.

[0074] Specifically, referring to Figure 11 and Figure 12 As shown, the holding parts 230 are protrudingly arranged in the middle of the inner wall of the pot body 200. When the partition plate 600 is placed on the holding parts, the inner cavity of the pot body 200 is divided into upper and lower cooking areas, and users can place different foods in the two cooking areas for processing respectively;

[0075] When the hot air flow enters the pot body 200 from the open end and the air inlet area 210 of the pot body 200, the hot air flow above descends, contacts the partition plate 600 and then turns, and is output from the air outlet area 220; at the same time, the hot air flow below ascends, contacts the partition plate 600 and then turns, and is output from the air outlet area 220;

[0076] Therefore, in this embodiment, the partition plate 600 is arranged in the middle of the air outlet area 220, so that the air outlet area 220 can blow air to the upper and lower cooking areas respectively.

[0077] In order to guide the hot air flow entering the heating chamber 101 so that it can contact the air guiding ribs 510, a guiding plate 400 is arranged between the heating chamber 101 and the hot air system 300, and the guiding plate 400 is provided with a first air inlet 401 and a second air inlet 402 corresponding to the two air inlet channels;

[0078] The first air inlet 401 is located at the upper part of the guiding plate 400, and the second air inlet 402 is located at the lower part of the guiding plate 400.

[0079] The first air inlet 401 at least covers the lateral projection of all the air guiding ribs 510.

[0080] Referring to Figure 3 As shown, in this embodiment, the guiding plate 400 is arranged as a semi-surrounding structure with three sides, and the middle end face connecting the two sides is set as a guiding surface 410, and the first air inlet 401 and the second air inlet 402 are both arranged on the guiding surface 410.

[0081] The air deflector 400 separates the hot air system 300 and the heating chamber 101 within the main body 100. The air flow within the heating chamber 101 is, under the action of the hot air system 300, led out through the air deflector 400 to the hot air system 300, forming a hot air flow, and then led back into the hot air chamber through the air deflector 400.

[0082] Therefore, an air outlet hole 403 is provided in the middle of the air deflector 400.

[0083] Preferably, in order to direct the hot air flow introduced through the first air inlet 401, in this embodiment, air guiding vanes 411 are provided on the air deflector 400 and extend towards the heating chamber 101 at the edge of the air inlet.

[0084] In this embodiment, the direction of the air guiding vanes 411 is perpendicular to the end face of the air deflector 400 and is formed on the vertical edge of the first air inlet 401.

[0085] In this embodiment, the specific implementation of the hot air system 300 is as follows: the hot air system 300 includes an air flow driving component 320 and a heating component 310, and at least two air outlet parts are provided on the hot air system 300 corresponding to the first air inlet 401 and the second air inlet 402 respectively.

[0086] Specifically, to ensure the output efficiency of the hot air flow and enable the air flow to fully enter the heating chamber 101, in this embodiment, a hot air shell 330 is further provided outside the air flow driving component 320. Refer to Figure 4 and Figure 5 As shown, the hot air shell 330 is a semi - shell, and its interior is divided into a air guiding area and a heating area by a partition board. The air flow driving component 320 is located in the air guiding area, and the heating component 310 is located in the heating area; a air hole is provided at the center of the partition board for air inlet;

[0087] An air outlet groove 331 communicating with the air guiding area is provided on the hot air shell 330, and the position of the air outlet groove 331 corresponds to the positions of the first air inlet 401 and the second air inlet 402 on the air deflector 400; the hot air flow can overflow from the air outlet groove 331 towards the outside of the hot air shell 330 and enter the first air inlet 401 and the second air inlet 402;

[0088] Refer to Figure 7 As shown, in this embodiment, the air outlet grooves 331 are provided at the upper and lower ends of the hot air shell 330, and the two air outlet grooves 331 located at the lower part are specifically provided at the two corners. Thus, in this embodiment, there are also two second air inlets 402 on the air deflector 400, and they are located at the two corner parts of the air guiding surface 410.

[0089] Preferably, the air flow driving component 320 is a centrifugal air wheel, and the hot air flow blows out linearly from the side of the centrifugal air wheel.

[0090] The centrifugal air impeller has a wind guiding structure with central air suction and circumferential air discharge. Therefore, when the hot air flow discharges from the circumference of the centrifugal air impeller, since other parts are all set to be closed, the hot air flow can only discharge through the two air discharge slots 331.

[0091] In addition, in this embodiment, a cooling air impeller 340 is further provided outside the air guiding housing. The air flow driving component 320 is driven by a motor 350 to rotate. Therefore, a large amount of heat will be generated during the operation of the motor 350. The cooling air impeller 340 is connected to the shaft of the motor 350 and is located between the motor 350 and the hot air housing 330. When the motor 350 operates, it drives the cooling air impeller 340 to rotate to cool the motor 350.

[0092] In this embodiment, the specific implementation manner of the air discharge passage is as follows: the air discharge passage at least includes a discharge path and an introduction path;

[0093] The discharge path discharges the air flow from the heating chamber 101 to the heating component 310;

[0094] The introduction path introduces the air flow from the heating component 310 to the air flow driving component 320.

[0095] Specifically referring to Figure 6 and Figure 7 As shown, when the hot air system 300 works, the air pressure outside the heating chamber 101 decreases, and the air pressure inside the heating chamber 101 is greater than that outside, so as to form an air flow to output the internal air outward, and the output direction is towards the hot air system 300; this air flow moves along the air discharge path, enters the position of the heating component 310 through the discharge path, forms a hot air flow under the action of the heating component 310, and the hot air flow enters the position of the air flow driving component 320 along the introduction path, and is blown out from the air discharge part of the hot air system 300 under the action of the air flow driving component 320, and returns to the heating chamber 101 through the first air inlet 401 and the second air inlet 402 on the air guiding plate 400.

[0096] Preferably, in order to increase the heating time of the air flow, in this embodiment, the discharge path and the introduction path are not connected end to end.

[0097] In this way, when the air flow reaches the end of the discharge path, that is, enters the position of the heating part (heating area). At this time, since the introduction path and the discharge path are not connected end to end, the air flow still needs to pass through a section of path when it reaches the introduction path, and this path is bound to be in the heating area. Therefore, the moving time of the air flow in the heating area is increased, so that the heating component 310 can fully heat the air flow.

[0098] In the setting of this embodiment, the air outlet channel further includes a heating path, and the direction of the heating path is from the outer edge of the heating component 310 to the center of the heating component 310.

[0099] In this embodiment, the heating component 310 is a coil arranged in a shape like mosquito coils; the direction of the heating path is the length from the outermost end of the coil to the center of the coil; when the air flow moves along the heating path, it can contact the heating component 310 passing through each section, thereby heating the air flow multiple times, enabling the air flow to generate heat quickly and increasing the heating rate of the air flow.

[0100] In this embodiment, to ensure the length of the above-mentioned heating path, the outlet path, the heating path, and the inlet path are arranged in a curved connection.

[0101] To streamline the occupied space of the hot air system 300, the coil and the air guide plate 400 are arranged in parallel, and the outlet path and the inlet path are both perpendicular to the air guide plate 400. Therefore, after the outlet path, the heating path, and the inlet path are connected, an S-shaped moving path is formed.

[0102] In this embodiment, to ensure that when the air flow is exported from the heating chamber 101, it can smoothly enter the outer side of the heating component 310, an air outlet area is further provided on the air guide plate 400, and the air outlet area corresponds to the outer side area of the heating component 310.

[0103] The air outlet area on the air guide plate 400 is arranged on the circumference around the center of the air guide plate 400 and is spaced from the center of the air guide plate 400 by a certain distance. It corresponds to the outer side area of the heating component 310. Thus, when the air flow formed in the heating chamber 101 blows out from the air outlet part, it directly enters the outer side area of the heating component 310, then moves towards the center of the heating component 310 (along the heating path), and then enters the center of the air flow driving component 320 from the center of the heating component 310 (along the inlet path), thereby forming a complete air outlet channel.

[0104] The air outlet area is composed of a plurality of air outlet holes 403.

[0105] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An air duct system, comprising: A cooking body (100) provided with a heating chamber (101); A hot air system (300) is disposed in the cooking body (100) and is in communication with the heating chamber (101), and heats the internal air and drives it to the heating chamber (101), thereby processing the food in the heating chamber (101); Features: An air duct structure is provided between the heating chamber (101) and the hot air system (300), the air duct structure comprising at least one air outlet channel and two air inlet channels, and a first air inlet path and a second air inlet path entering the interior of the heating chamber (101) along the two air inlet channels are vertically arranged.

2. The air duct system according to claim 1, characterized in that: The first air inlet path enters from the top of the heating chamber (101) and vertically downwards into the food processing portion of the heating chamber (101); The second air inlet path enters from the lower side of the heating chamber (101) and enters the food processing area of ​​the heating chamber (101) in a horizontal direction.

3. The air duct system according to claim 1, characterized in that: A top cover (500) is provided on the top of the heating chamber (101), and air guide ribs (510) are provided on the top cover (500) toward the inside of the heating chamber (101); the air guide ribs (510) stop and redirect the airflow entering the top of the heating chamber (101) in a horizontal direction.

4. An air fryer, characterized in that: The air duct system comprises any one of claims 1 to 3, and further comprises a pot body (200), wherein the pot body (200) is provided with an open side, and at least one side of the pot wall is provided with an air inlet area (210) and an air outlet area (220); the open side and the air inlet area (210) are respectively connected to two air inlet channels; The air outlet area (220) is in communication with the air outlet channel.

5. The air fryer according to claim 4, characterized in that: Two symmetrical inner walls of the pot body (200) are protrudingly provided with support portions (230), and an interlayer plate (600) is detachably provided on the support portions (230); The partition plate (600) divides the inner cavity of the pot body (200) into two upper and lower cooking areas; The air outlet area (220) is respectively connected to the two cooking areas.

6. The air fryer according to claim 4, characterized in that: An air guide plate (400) is provided between the heating chamber (101) and the hot air system (300), and the air guide plate (400) is provided with a first air inlet (401) and a second air inlet (402) corresponding to two air inlet channels; The first air inlet (401) is located at the upper part of the air guide plate (400), and the second air inlet (402) is located at the lower part of the air guide plate (400).

7. The air fryer according to claim 6, characterized in that: The hot air system (300) comprises an airflow driving component (320) and a heating component (310), and the airflow driving component (320) is provided with at least two air outlets corresponding to the first air inlet (401) and the second air inlet (402), respectively.

8. The air fryer according to claim 7, characterized in that: The air outlet channel at least includes an outlet path and an inlet path; The outlet path outlets the airflow from the heating chamber (101) to the heating component (310); The introduction path guides the airflow from the heating component (310) to the airflow driving component (320).

9. The air fryer according to claim 8, characterized in that: The air outlet channel also includes a heating path, the direction of the heating path is from the outer edge of the heating component (310) to the center of the heating component (310).

10. The air fryer according to claim 9, characterized in that: The air guide plate (400) is also provided with an air outlet area, and the air outlet area corresponds to the outer area of ​​the heating component (310).

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