Air fryer with symmetrical circulating air ducts

The symmetrical circulating air duct structure solves the problem of uneven heat distribution in traditional air fryers, achieving uniform heating of both sides of the food, simplifying the cooking process, and improving cooking efficiency and user experience.

CN223489584UActive Publication Date: 2025-10-31GUANGDONG JIAWEI ELECTRIC APPLIANCE TECH CO LTD
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Patent Information

Application Number
CN202422909818.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-10-31
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

Traditional air fryers require frequent stops to flip the food during cooking due to uneven heat distribution, which affects cooking efficiency and user experience.

Method used

A symmetrical circulating air duct structure is designed. By setting up guide plates and guide hoods, hot air can form a symmetrical circulation in the frying drum, ensuring that the food is heated evenly on both sides and avoiding the need to flip it.

Benefits of technology

It achieves uniform heating on both sides of the food, simplifies the cooking process, improves cooking efficiency, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air fryer with symmetrical circulating air ducts, which comprises a shell, a furnace end component blowing hot air downwards is mounted on the upper side in the shell, a frying barrel component is mounted on the lower side in the shell, a heating tube is arranged on the lower side of the furnace end component, a guide plate is arranged below the heating tube, and the guide plate is connected with the frying barrel component. The frying barrel assembly comprises a frying barrel and a frying plate installed at the bottom of the inner side of the frying barrel, air inlet covers communicated with the air outlets are installed on the left side and the right side of the frying barrel, a conical protruding flow guide cover is arranged in the middle of the frying plate, an open hole is formed in the top of the protruding flow guide cover, and the air inlet covers are communicated with the air outlets. A plurality of open grooves are formed in the outer side wall of the protruding flow guide cover, and a plurality of vent grooves communicated with the protruding flow guide cover are formed in the inner side of the bottom of the frying barrel. The food processor is simple in structure and convenient to use, the front and back surfaces of food can be uniformly heated, the food can be turned over without halfway shutdown, and the use effect is good.
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Description

Technical Field

[0001] This utility model relates to the field of air fryer technology, specifically to an air fryer with a symmetrical circulating air duct. Background Technology

[0002] An air fryer is a cooking device that uses hot air circulation and the food's own oils to fry food. With the improvement of people's living standards, air fryers have gradually become a common cooking appliance. However, traditional air fryers on the market typically have only a single heating element at the top, using a motor to drive a fan to radiate heat into the frying drum. The top of the food receives more heat than the bottom, forcing the fryer to stop mid-cooking, remove the drum, and flip the food. This causes the core temperature to drop rapidly and require reheating, making the cooking process cumbersome, inefficient, and resulting in a poor user experience. Therefore, to avoid the shortcomings of existing technology, it is necessary to improve it. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and provide an air fryer with a simple structure and high cooking efficiency using a symmetrical circulating air duct.

[0004] This utility model is achieved through the following technical solution:

[0005] An air fryer with a symmetrical circulating air duct includes a shell. A burner assembly for blowing hot air downwards is installed on the upper side of the shell. A frying drum assembly is installed on the lower side of the shell. A heating element is provided on the lower side of the burner assembly. A guide plate is provided below the heating element. Air outlets are provided on both the left and right sides of the guide plate. The frying drum assembly includes a frying drum and a frying plate installed at the bottom inner side of the frying drum. Air inlet hoods communicating with the air outlets are installed on both the left and right sides of the frying drum. A conical raised guide hood is provided in the middle of the frying plate. An opening is provided at the top of the raised guide hood. Several slots are provided on the outer side wall of the raised guide hood. Several ventilation slots communicating with the raised guide hood are provided on the inner side of the bottom of the frying drum. The ventilation slots are connected to the air inlet hoods. Several ventilation holes communicating with the ventilation slots are provided on the frying plate.

[0006] Furthermore, the burner assembly includes a motor base, a motor is mounted on the top of the motor base, and the motor shaft of the motor is connected to a cold air blade and a hot air blade respectively, with the cold air blade located inside the motor base.

[0007] Furthermore, an inner liner is installed on the inner side of the motor base, the hot air blade is located on the inner side of the inner liner, the heating element is installed on the inner side of the inner liner, and the guide plate is located on the bottom of the inner liner.

[0008] Furthermore, the burner assembly also includes a retaining ring connected to the housing, and both the motor mount and the guide plate are mounted on the retaining ring.

[0009] Furthermore, the top of the air inlet shroud is arc-shaped.

[0010] Furthermore, both the left and right sides of the frying plate are provided with air passage grooves corresponding to the bottom of the air inlet hood.

[0011] Furthermore, the slots are waist-shaped and arranged in a vortex pattern.

[0012] Furthermore, the vents are arranged in a circular array and are elongated strips.

[0013] Furthermore, the bottom of the frying barrel is arranged in a vortex shape, and the bottom of the frying barrel is provided with a number of consecutive concave and convex surfaces, with the ventilation grooves formed between the convex surfaces.

[0014] Furthermore, a handle assembly is provided on the front side of the fryer assembly.

[0015] Compared to existing technologies, this invention features a guide plate below the heating element, with air outlets on both sides of the guide plate. Air inlets connected to the air outlets are installed on both sides of the frying barrel. A conical raised guide plate is located in the middle of the frying plate, with an opening at the top and several slots on its outer side. Several ventilation slots connected to the raised guide plate are located on the inner side of the bottom of the frying barrel. Several ventilation holes connected to the ventilation slots are located on the frying plate. When the burner emits hot air, some of the hot air flows out from the left and right sides of the guide plate, enters through the air inlets on both sides of the frying barrel assembly, and then passes through the ventilation holes at the bottom of the frying barrel. The ventilation holes in the frying tank and the frying plate radiate heat to the bottom of the food. Some hot air enters through the openings in the raised air guide and is blown out through the slots on the outer wall of the raised air guide, spreading to all corners of the frying plate to radiate heat to the food. Alternatively, the hot air radiates heat to the bottom of the food through the ventilation slots at the bottom of the frying tank and the ventilation holes in the frying plate. Some hot air is reflected by the raised air guide and spreads to all corners of the frying plate to radiate heat to the food. Both sides of the food can be heated evenly, eliminating the need to stop the machine midway to flip the food. Cooking can continue until the end, making the cooking process simple, efficient, and providing a good user experience. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the structure of the air fryer with a symmetrical circulating air duct according to the present invention.

[0018] Figure 2 This is a schematic diagram of the longitudinal cross-sectional structure of the air fryer with symmetrical circulating air duct of this utility model.

[0019] Figure 3 This is an exploded view of the structure of the fryer bucket assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the symmetrical circulating air duct of this utility model;

[0021] Figure 5 This is an exploded view of the structure of the furnace head assembly of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the guide plate of this utility model;

[0023] Figure 7 for Figure 6 AA section view;

[0024] Figure 8 This is a schematic diagram of the structure of the frying barrel of this utility model;

[0025] Figure 9 This is a schematic diagram of the structure of the blasting plate of this utility model.

[0026] In the diagram: 1-Shell; 2-Burnhead assembly; 3-Frying barrel assembly; 21-Heating element; 22-Baffle plate; 221-Air outlet; 31-Frying barrel; 32-Frying plate; 311-Air inlet hood; 321-Raised baffle hood; 322-Opening; 323-Slot; 312-Ventilation slot; 324-Ventilation hole; 23-Motor base; 24-Motor; 25-Cold air blade; 26-Hot air blade; 27-Inner liner; 28-Fixing ring; 325-Air passage slot; 313-Concave surface; 314-Convex surface; 33-Handle assembly. Detailed Implementation

[0027] 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.

[0028] like Figures 1 to 9 The present invention discloses an air fryer with a symmetrical circulating air duct, comprising a shell 1, a burner assembly 2 for blowing hot air downwards installed on the upper side of the shell 1, and a frying drum assembly 3 installed on the lower side of the shell 1. A heating element 21 is provided on the lower side of the burner assembly 2, and a guide plate 22 is provided below the heating element 21. Air outlets 221 are provided on both the left and right sides of the guide plate 22. The frying drum assembly 3 includes a frying drum 31 and a frying plate 32 installed on the bottom inner side of the frying drum 31. Both sides are equipped with air inlet hoods 311 that communicate with the air outlet 221. The middle of the frying plate 32 is provided with a conical protruding guide hood 321. The top of the protruding guide hood 321 is provided with an opening 322. The outer side wall of the protruding guide hood 321 is provided with several slots 323. The inner side of the bottom of the frying barrel 31 is provided with several ventilation slots 312 that communicate with the protruding guide hood 321. The ventilation slots 312 communicate with the air inlet hood 311. The frying plate 32 is provided with several ventilation holes 324 that communicate with the ventilation slots 312. A guide plate 22 is provided below the heating element 21. Air outlets 221 are provided on both the left and right sides of the guide plate 22. Air inlet hoods 311 communicating with the air outlets 221 are installed on both the left and right sides of the frying barrel 31. A conical raised guide hood 321 is provided in the middle of the frying plate 32. An opening 322 is provided at the top of the raised guide hood 321. Several slots 323 are provided on the outer wall of the raised guide hood 321. Several ventilation slots 312 communicating with the raised guide hood 321 are provided on the inner side of the bottom of the frying barrel 31. Several ventilation holes 324 communicating with the ventilation slots 312 are provided on the frying plate 32. When the burner blows out hot air, a portion of the hot air flows out from the left and right sides of the guide plate 22, enters through the air inlet hoods 311 on both sides of the frying barrel assembly 3, and then passes through the bottom of the frying barrel 31. The ventilation slots 312 and ventilation holes 324 of the frying plate 32 radiate heat to the bottom of the food. Some hot air enters through the openings 322 of the raised guide shroud 321 and is blown out through the slots 323 on the outer wall of the raised guide shroud 321 to distribute to all corners of the frying plate 32, radiating heat to the food. Alternatively, the hot air radiates heat to the bottom of the food through the ventilation slots 312 and ventilation holes 324 at the bottom of the frying drum 31. Some hot air is reflected by the raised guide shroud 321 to all corners of the frying plate 32, radiating heat to the food. Both sides of the food can be heated evenly, eliminating the need to stop the machine midway to flip the food. Cooking can continue until the end, making the cooking process simple, efficient, and providing a good user experience.

[0029] The burner assembly 2 includes a motor base 23, on the top of which a motor 24 is mounted. The motor shaft of the motor 24 is connected to a cold air blade 25 and a hot air blade 26. The cold air blade 25 is located inside the motor base 23. When the heating element 21 is working, the motor 24 starts working synchronously and moves at high speed, thereby driving the cold air blade 25 and the hot air blade 26 to rotate at high speed, thereby driving the heat from the heating element 26.

[0030] A liner 27 is installed on the inner side of the motor base 23. The hot air blade 26 is located on the inner side of the liner 27. The heating tube 21 is installed on the inner side of the liner 27. The guide plate 22 is placed on the bottom of the liner 27 so that the heat emitted by the heating tube 21 can be fully utilized.

[0031] The burner assembly 2 also includes a fixing ring 28 connected to the housing 1. The motor base 23 and the guide plate 22 are both installed on the fixing ring 28, making the installation of the burner assembly 2 more convenient and stable.

[0032] The top of the air inlet hood 311 is arc-shaped, which effectively receives the hot air introduced from the burner head.

[0033] Both sides of the frying plate 32 are provided with air passage slots 325 corresponding to the bottom of the air inlet hood 311, which facilitates the smooth entry of hot air into the bottom of the frying plate 32.

[0034] The slots 323 are waist-shaped and arranged in a vortex pattern, which facilitates the hot air to be distributed to all corners of the frying plate 32 through the slots 323, so as to radiate heat to the food.

[0035] The ventilation holes 324 are arranged in a circular array and are elongated, which makes the hot air more evenly guided upward and the heat radiation to the bottom of the food more even. At the same time, it reduces the contact area between the frying plate 32 and the food, and avoids burning the food.

[0036] The frying plate 32 is provided with several annular pressure grooves to improve the structural strength of the frying plate, reduce the contact area between the frying plate and the food, and prevent the food from burning. The side walls of the annular pressure grooves are evenly provided with several small holes to facilitate the full flow of hot air and more uniform heat radiation to the bottom surface of the food.

[0037] The bottom of the frying drum 31 is vortex-shaped. The bottom of the frying drum 31 has several concave surfaces 313 and convex surfaces 314 connected together. Ventilation grooves 312 are formed between the convex surfaces 314, making the frying drum 31 easier to manufacture. Through the concave and convex shapes of the bottom of the frying drum 31, hot air is guided to form an independent three-dimensional hot air circulation.

[0038] A handle assembly 33 is provided on the front side of the frying bucket assembly 3 to facilitate the pulling operation of the frying bucket 31.

[0039] 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 a symmetrical circulating air duct, characterized in that: The device includes a housing, an upper part of which is equipped with a downward-blowing hot air burner assembly, and a lower part of which is equipped with a frying barrel assembly. A heating element is located on the lower part of the burner assembly, and a guide plate is located below the heating element. Air outlets are located on both the left and right sides of the guide plate. The frying barrel assembly includes a frying barrel and a frying plate installed at the bottom inner side of the frying barrel. Air inlet hoods communicating with the air outlets are installed on both the left and right sides of the frying barrel. A conical raised guide hood is located in the middle of the frying plate. An opening is located at the top of the raised guide hood, and several slots are located on the outer side of the raised guide hood. Several ventilation slots communicating with the raised guide hood are located on the inner side of the bottom of the frying barrel. The ventilation slots are connected to the air inlet hoods. Several ventilation holes communicating with the ventilation slots are located on the frying plate.

2. The air fryer with a symmetrical circulating air duct according to claim 1, characterized in that: The burner assembly includes a motor base, on the top of which a motor is mounted. The motor shaft of the motor is connected to a cold air blade and a hot air blade, with the cold air blade located inside the motor base.

3. The air fryer with a symmetrical circulating air duct according to claim 2, characterized in that: An inner liner is installed on the inner side of the motor base, the hot air blade is located on the inner side of the inner liner, the heating tube is installed on the inner side of the inner liner, and the guide plate is located on the bottom of the inner liner.

4. The air fryer with a symmetrical circulating air duct according to claim 2, characterized in that: The burner assembly also includes a fixing ring connected to the housing, and the motor mount and the guide plate are both mounted on the fixing ring.

5. The air fryer with a symmetrical circulating air duct according to claim 1, characterized in that: The top of the air inlet hood is arc-shaped, and the air inlet hood gradually increases in size from top to bottom.

6. The air fryer with a symmetrical circulating air duct according to claim 1, characterized in that: The frying plate has air passage slots on both the left and right sides that correspond to the bottom of the air inlet hood.

7. The air fryer with a symmetrical circulating air duct according to claim 1, characterized in that: The slots are waist-shaped and arranged in a vortex pattern.

8. The air fryer with a symmetrical circulating air duct according to claim 1, characterized in that: The vents are arranged in a circular array, and the vents are arranged in an elongated shape.

9. The air fryer with a symmetrical circulating air duct according to claim 1, characterized in that: The bottom of the frying barrel is vortex-shaped, and the bottom of the frying barrel has several concave and convex surfaces connected together, with the ventilation grooves formed between the convex surfaces.

10. The air fryer with a symmetrical circulating air duct according to claim 1, characterized in that: The fryer assembly has a handle assembly on the front side.