Heating cavity structure and air fryer
By adopting an integrated design and plug-in structure of the flow divider cone and assembly platform in the heating chamber of the air fryer, the problems of heat loss and structural loosening are solved, achieving efficient and stable heat distribution and easy maintenance.
Patent Information
- Application Number
- CN202520009864.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-02
AI Technical Summary
The heating chamber structure of existing air fryers causes significant heat loss during the heat distribution process, resulting in low thermal efficiency and high energy consumption. Furthermore, the traditional structure is prone to loosening and inconvenient to maintain.
The design incorporates a flow divider cone and assembly table as a single unit. The heating unit is arranged around the side wall of the assembly table and a plug-in structure ensures a stable connection, optimizing airflow distribution and heating sequence.
It improves thermal efficiency, reduces heat loss, enhances structural stability, lowers maintenance costs, facilitates cleaning and maintenance, and improves energy utilization efficiency.
Smart Images
Figure CN223929979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating cavity technology, and in particular to a heating cavity structure and an air fryer. Background Technology
[0002] In existing technologies, air fryers, as a convenient and healthy cooking appliance, have been widely used in homes and the catering industry. They use high-speed circulating hot air to replace the oil used in traditional frying, achieving the desired frying effect. The core of an air fryer lies in the design of its heating chamber structure, which directly affects thermal efficiency, cooking uniformity, and safety during use.
[0003] The traditional air fryer heating chamber structure typically includes a main body assembly, a frying basket assembly, a heating assembly, and a control assembly. The heating assembly is the core component, generally consisting of a heating element, a motor, and a centrifugal fan. The motor drives the centrifugal fan to rotate, creating a high-speed airflow within the frying basket. Simultaneously, the heat generated by the heating element is carried by the airflow into the frying basket, heating the food.
[0004] In order to achieve uniform heating of food and ensure that the airflow is evenly distributed, patent CN116965691A mentions a conical flow-dividing structure. Although it attempts to improve heat distribution by changing the airflow path, the heat is easily lost during the flow-dividing process because it adopts the method of heating the airflow first and then dividing it, which reduces the overall thermal efficiency and increases energy consumption. Utility Model Content
[0005] To overcome at least one of the defects described in the prior art, this utility model provides a heating chamber structure and an air fryer. This solves the problem of heat loss while achieving a uniform heat distribution effect.
[0006] The technical solution adopted by this utility model to solve its problem is:
[0007] A heating chamber structure includes: a heating chamber upper cover with an air inlet; a heating chamber lower cover including an assembly platform protruding into the heating chamber upper cover and a support lip plate surrounding the side wall of the assembly platform, the support lip plate having an air outlet, a flow divider cone on the top surface of the assembly platform, the flow divider cone being coaxially arranged with the air inlet, the heating chamber upper cover, the assembly platform, and the support lip plate forming a heating chamber; and a heating unit assembled inside the heating chamber and arranged around the side wall of the assembly platform.
[0008] By adopting the above scheme and through the design of the flow divider cone, the airflow entering the heating chamber can be evenly divided. At the same time, the heating unit is arranged around the side wall of the assembly table. This layout allows the heat to be more concentratedly distributed in the heating chamber, and the heating can be carried out after the gas is divided. This reduces the heat loss during the division or transmission process, improves thermal efficiency, and reduces heat energy loss.
[0009] Furthermore, the flow divider cone and the assembly table are integrally formed.
[0010] By adopting the above solution, the integrated molding design of the flow divider cone and the assembly table eliminates the connection gaps or loosening problems that may exist in the traditional split structure, thereby enhancing the overall stability of the heating cavity structure, reducing the number of parts, reducing the risk of performance degradation due to improper fit between parts, and also helping to optimize the heat transfer path between the flow divider cone and the assembly table, reducing heat loss during the heat transfer process, simplifying manufacturing and assembly, and extending service life.
[0011] Furthermore, the flow divider cone is detachably connected to the assembly table.
[0012] By adopting the above solution, the detachable design makes upgrading and replacing the flow divider cone easier, without having to replace the entire heating chamber structure, thus reducing upgrade costs; it also allows the flow divider cone to be easily removed for cleaning, ensuring the hygiene of the air fryer and the cooking quality.
[0013] Furthermore, a heating chamber bottom cover is provided at the bottom of the heating chamber lower cover, an assembly column is provided on the heating chamber bottom cover, an assembly groove is provided on the top surface of the assembly platform, the assembly column is located in the assembly groove, an assembly slot is provided at the bottom of the flow divider cone, and the assembly slot is inserted into the assembly column.
[0014] By adopting the above solution, not only is a firm connection between the lower cover of the heating chamber and the assembly table ensured, but the stability of the entire heating chamber structure is also improved. This simplifies the installation process of the flow divider cone and prevents it from shaking or falling off during use. Due to the plug-in structure, the various components of the heating chamber can be easily disassembled for cleaning or maintenance. This greatly improves the convenience of maintenance and reduces maintenance costs and time.
[0015] Furthermore, the heating unit includes: a heating tube, which surrounds at least one layer along the side wall of the assembly table; and a limiting member, which has a limiting groove in which the heating tube is engaged.
[0016] By adopting the above solution, the limiting component provides stable support for the heating element through its structure, preventing the heating element from shifting or deforming due to vibration or external force during use. The design of the heating element surrounding the heating element increases the contact area between the heating element and the air, which helps to accelerate the heat transfer speed and shorten the heating time.
[0017] Furthermore, when the heating element is wrapped in two or more layers, the limiting member is provided with two or more limiting grooves in the vertical direction, and the number of limiting grooves is consistent with the number of layers of the heating element.
[0018] By adopting the above scheme, each limiting groove corresponds to a layer of heating tubes, ensuring that each layer of heating tubes can be accurately positioned in the predetermined position, avoiding mutual interference between heating tubes, and ensuring the uniformity of heat distribution.
[0019] Furthermore, two or more limiting members are provided, and the two or more limiting members are distributed at equal intervals along the circumferential sidewall of the assembly table.
[0020] By adopting the above scheme, and by setting two or more limiting components, and distributing these limiting components at equal intervals along the circumferential sidewall of the assembly table, multi-point support can be provided for the heating element, which can more effectively disperse the stress and deformation generated by the heating element during the heating process, thereby enhancing the structural stability of the entire heating unit; each limiting component is independent, so it is easier to maintain and replace a single limiting component or heating element without affecting the normal operation of other parts.
[0021] Furthermore, the heating tube is provided with pin connectors at both ends, and a fixing member is provided between the two pin connectors. A clearance hole is provided on one side wall of the heating cavity cover, and the fixing member is snapped into the clearance hole.
[0022] By adopting the above solution, and through the cooperation of pin connectors and fixing parts, stable wiring and assembly of the heating element on the assembly table are achieved, which facilitates the installation and disassembly of the heating element and reduces maintenance difficulty and cost.
[0023] Furthermore, the taper of the diverter cone is 50°-150°.
[0024] By adopting the above scheme, it is more conducive to wind diversion.
[0025] An air fryer includes a shell body, a fixing frame, a fan mechanism, a frying basket mechanism, and a heating chamber structure. The fixing frame is disposed above the shell body, the heating chamber structure is assembled inside the fixing frame, the fan mechanism is disposed above the heating chamber structure inside the fixing frame, and the fan mechanism is connected to the air inlet of the heating chamber cover. The heating chamber is connected to the air inlet and the frying basket mechanism.
[0026] By adopting the above scheme, the air is driven to circulate by the fan mechanism and diverted by the diversion cone in the heating chamber structure. After being heated by the heating unit, the air enters the frying basket mechanism, ensuring that the food can be heated evenly, improving cooking efficiency and reducing heat loss.
[0027] In summary, the heating chamber structure and air fryer provided by this utility model have the following technical effects:
[0028] 1. Through the design of the flow divider cone, the airflow entering the heating chamber is evenly divided, while the heating units are arranged around the side wall of the assembly table. This layout allows the airflow to be heated after being divided, reducing heat loss during the division or transmission process, thereby improving thermal efficiency;
[0029] 2. The design of the flow divider cone ensures that the airflow entering the heating chamber is evenly distributed, avoiding the problem of uneven airflow distribution in traditional structures. The heating units are arranged around the side wall of the assembly platform. This layout allows the heat to be more concentratedly distributed in the heating chamber, further enhancing the uniformity of cooking. This enables the heat to be more evenly distributed in the frying basket, thereby achieving uniform heating of the food.
[0030] 3. The rational layout of the heating chamber structure makes cleaning and maintenance easier. Users can more easily disassemble and install related components to perform regular cleaning and maintenance, thereby extending the lifespan of the air fryer and ensuring its stable performance;
[0031] 4. By optimizing airflow distribution and heating sequence, heat loss during distribution or transmission is effectively reduced. This lowers heat loss during air fryer operation and improves energy efficiency. Attached Figure Description
[0032] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;
[0033] Figure 2 This is a partial exploded structural diagram of an embodiment of the present invention;
[0034] Figure 3 This is an exploded structural diagram of an embodiment of the present utility model;
[0035] Figure 4 This is a schematic diagram of the reverse explosion structure of an embodiment of the present invention;
[0036] Figure 5 This is a cross-sectional structural diagram of the air fryer according to an embodiment of the present invention.
[0037] The meanings of the reference numerals in the attached drawings are as follows: 1. Heating chamber upper cover; 11. Air inlet; 111. Lip; 12. Assembly plate; 13. Clearance hole; 2. Heating chamber lower cover; 21. Assembly platform; 211. Diverter cone; 2111. Assembly slot; 212. Assembly groove; 22. Support lip plate; 221. Air outlet; 23. Heating chamber; 3. Heating unit; 31. Heating tube; 311. Pin connector; 32. Limiting component; 321. Limiting groove; 4. Heating chamber bottom cover; 41. Assembly column; 5. Fixing component; 6. Housing body; 7. Fixing frame; 8. Fan mechanism; 9. Basket blasting mechanism. Detailed Implementation
[0038] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.
[0039] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.
[0040] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0042] See Embodiment 1 of this utility model. Figures 1-5As shown, a heating chamber 23 structure is disclosed, including a heating chamber upper cover 1, a heating chamber lower cover 2, and a heating unit 3. The heating chamber upper cover 1 has an air inlet 11, which extends upwards with a lip 111 for sealing connection with the air outlet of the fan mechanism 8. The heating chamber lower cover 2 includes an assembly platform 21 protruding into the heating chamber upper cover 1 and a support lip plate 22 surrounding the side wall of the assembly platform 21. Preferably, the support lip plate 22 is integrally formed with the bottom edge of the assembly platform 21. An air outlet 221 is provided on the support lip plate 22. A flow divider cone 211 is provided on the top surface of the assembly platform 21, and the flow divider cone 211 is coaxially arranged with the air inlet 11. Preferably, the taper of the flow divider cone 211 is 50°-150°, which is more conducive to air diversion. The heating chamber cover 1, the assembly platform 21, and the support lip plate 22 enclose a heating chamber 23. The heating unit 3 is assembled in the heating chamber 23 and is arranged around the side wall of the assembly platform 21. Through the design of the flow divider cone 211, the airflow entering the heating chamber 23 can be evenly divided. At the same time, the heating unit 3 is arranged around the side wall of the assembly platform 21. This layout allows the heat to be more concentratedly distributed in the heating chamber 23, and the gas can be heated after being divided. This reduces the heat loss during the division or transmission process, improves thermal efficiency, and reduces heat energy loss.
[0043] In some embodiments, the flow divider cone 211 and the assembly table 21 are integrally formed. This arrangement eliminates the connection gaps or loosening problems that may exist in traditional split structures, thereby enhancing the overall stability of the heating cavity 23 structure, reducing the number of parts, reducing the risk of performance degradation due to improper fit between parts, and also helping to optimize the heat transfer path between the flow divider cone 211 and the assembly table 21, reducing heat loss during the heat transfer process, simplifying manufacturing and assembly, and extending service life.
[0044] In some embodiments, the flow divider cone 211 is detachably connected to the assembly table 21. The detachable design makes it easier to upgrade and replace the flow divider cone 211 without replacing the entire heating chamber 23 structure, thus reducing upgrade costs. It also allows the flow divider cone 211 to be easily removed for cleaning, ensuring the hygiene and cooking quality of the air fryer. In this embodiment 1, a heating chamber bottom cover 4 is provided at the bottom of the heating chamber lower cover 2, and an assembly post 41 is provided on the heating chamber bottom cover 4. An assembly groove 212 is provided on the top surface of the assembly platform 21, and the assembly post 41 is located in the assembly groove 212. An assembly slot 2111 is provided at the bottom of the flow divider cone 211, and the assembly slot 2111 is inserted into the assembly post 41. This not only ensures a firm connection between the heating chamber lower cover 2 and the assembly platform 21, but also improves the stability of the entire heating chamber 23 structure. It simplifies the installation process of the flow divider cone 211 and prevents the flow divider cone 211 from shaking or falling off during use. Due to the use of the plug-in structure, the various components of the heating chamber 23 can be easily disassembled for cleaning or maintenance. This greatly improves the convenience of maintenance and reduces maintenance costs and time. In other embodiments, the specific connection structure between the flow divider cone 211 and the assembly platform 21 is not limited, and includes, but is not limited to, welding, snap-fit, or magnetic connection.
[0045] In some embodiments, the heating unit 3 includes a heating tube 31 and a limiting member 32. The heating tube 31 is arranged in at least one layer around the side wall of the assembly table 21. The limiting member 32 is provided with a limiting groove 321, and the heating tube 31 is engaged in the limiting groove 321. The limiting member 32 provides stable support for the heating tube 31 through its structure, preventing the heating tube 31 from shifting or deforming due to vibration or external force during use. The design of the heating tube 31 being arranged in a ring increases the contact area between the heating tube 31 and the air, which helps to accelerate the heat transfer speed and shorten the heating time. When the heating tube 31 is arranged in two or more layers, the limiting member 32 is provided with two or more limiting grooves 321 in the vertical direction. The number of limiting grooves 321 is consistent with the number of layers of heating tube 31. This ensures that each limiting groove 321 corresponds to one layer of heating tube 31, ensuring that each layer of heating tube 31 can be accurately positioned in a predetermined position, avoiding mutual interference between heating tubes 31, and ensuring the uniformity of heat distribution. In this embodiment 1, three limiting grooves 321 are provided, and the heating tube 31 is spirally coiled in three layers, so that the heating tube 31 in each layer is engaged in one of the limiting grooves 321.
[0046] Preferably, two or more limiting members 32 are provided, and the two or more limiting members 32 are evenly distributed along the circumferential sidewall of the assembly table 21. In this embodiment 1, four limiting members 32 are provided. By providing multiple limiting members 32 and distributing them evenly along the circumferential sidewall of the assembly table 21, multiple points of support can be provided for the heating tube 31, which can more effectively disperse the stress and deformation generated by the heating tube 31 during heating, thereby enhancing the structural stability of the entire heating unit 3. Each limiting member 32 is independent, so it is easier to maintain and replace a single limiting member 32 or heating tube 31 without affecting the normal operation of other parts.
[0047] In this embodiment 1, the heating element 31 has pin connectors 311 at both ends, and a fixing member 5 is provided between the two pin connectors 311. The fixing member 5 is an insulating plate with two through holes for the pin connectors 311 to pass through and be confined within the through holes. A clearance hole 13 is provided on one side wall of the heating chamber cover 1, and the fixing member 5 is engaged within the clearance hole 13. Through the cooperation of the pin connectors 311 and the fixing member 5, stable wiring and assembly stability of the heating element 31 on the assembly table 21 are achieved, facilitating the installation and disassembly of the heating element 31 and reducing maintenance difficulty and cost. In other embodiments, the specific fixing method and structure of the fixing member 5 are not limited.
[0048] In some embodiments, to fix the heating chamber cover 1, an assembly plate 12 is provided on the edge of the heating chamber cover 1. The assembly plate 12 is fixedly connected to or integrally connected to the heating chamber cover 1. At least two assembly plates 12 are provided and are evenly spaced along the circumferential edge of the heating chamber cover 1. In this embodiment 1, three assembly plates 12 are provided and are triangular in shape. The assembly plates 12 are provided with screw holes, and the assembly plates 12 can be fixed to the housing body 6 by screws, ensuring that the heating chamber cover 1 forms a stable connection with the assembly platform 21 or other components at multiple points, thereby enhancing the overall structural strength and stability.
[0049] This utility model also relates to an air fryer, including a shell body 6, a fixing frame 7, a fan mechanism 8, a frying basket mechanism 9, and a heating chamber 23 structure. The fixing frame 7 is disposed above the shell body 6, and the heating chamber 23 structure is assembled inside the fixing frame 7. The fan mechanism 8 is disposed above the heating chamber 23 structure inside the fixing frame 7, and the fan mechanism 8 is connected to the air inlet 11 of the heating chamber cover 1. The heating chamber 23 is connected to the air inlet 11 and the frying basket mechanism 9. The fan mechanism 8 drives the air to circulate, and the air is diverted by the diversion cone 211 inside the heating chamber 23 structure. After being heated by the heating unit 3, the air enters the frying basket mechanism 9, ensuring that the food can be heated evenly, improving cooking efficiency, and reducing heat loss.
[0050] In summary, the heating chamber 23 structure and air fryer provided by this utility model have the following technical effects:
[0051] 1. Through the design of the flow divider cone 211, the airflow entering the heating chamber 23 is evenly divided, while the heating unit 3 is arranged around the side wall of the assembly platform 21. This layout allows the airflow to be heated after being divided, reducing heat loss during the division or transmission process, thereby improving thermal efficiency;
[0052] 2. The design of the flow divider cone 211 ensures that the airflow entering the heating chamber 23 is evenly distributed, avoiding the problem of uneven airflow distribution in traditional structures. The heating unit 3 is arranged around the side wall of the assembly platform 21. This layout makes the heat more concentrated in the heating chamber 23, further enhancing the uniformity of cooking. This allows the heat to be more evenly distributed in the frying basket, thereby achieving uniform heating of the food.
[0053] 3. The rational layout of the heating chamber 23 makes cleaning and maintenance easier. Users can more easily disassemble and install related components to perform regular cleaning and maintenance, thereby extending the lifespan of the air fryer and ensuring its stable performance;
[0054] 4. By optimizing airflow distribution and heating sequence, heat loss during distribution or transmission is effectively reduced. This lowers heat loss during air fryer operation and improves energy efficiency.
[0055] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.
Claims
1. A heating cavity (23) structure, characterized in that, include: The heating chamber cover (1) is provided with an air inlet (11); The lower cover (2) of the heating chamber includes an assembly platform (21) protruding into the upper cover (1) of the heating chamber and a support lip plate (22) surrounding the side wall of the assembly platform (21). The support lip plate (22) is provided with an air outlet (221). The top surface of the assembly platform (21) is provided with a flow divider cone (211). The flow divider cone (211) is coaxially arranged with the air inlet (11). The upper cover (1) of the heating chamber, the assembly platform (21), and the support lip plate (22) enclose the heating chamber to form a heating chamber (23). Heating unit (3) is assembled in the heating cavity (23) and is arranged around the side wall of the assembly table (21).
2. The heating cavity (23) structure according to claim 1, characterized in that, The flow divider cone (211) and the assembly table (21) are integrally formed.
3. The heating cavity (23) structure according to claim 1, characterized in that, The flow divider cone (211) is detachably connected to the assembly table (21).
4. The heating cavity (23) structure according to claim 3, characterized in that, The bottom of the heating chamber lower cover (2) is provided with a heating chamber bottom cover (4), and an assembly column (41) is provided on the heating chamber bottom cover (4). An assembly groove (212) is provided on the top surface of the assembly platform (21). The assembly column (41) is located in the assembly groove (212). An assembly slot (2111) is provided at the bottom of the flow divider cone (211). The assembly slot (2111) is inserted into the assembly column (41).
5. The heating cavity (23) structure according to claim 1, characterized in that, The heating unit (3) includes: Heating element (31), the heating element (31) is surrounded by at least one layer along the side wall of the assembly table (21); The limiting member (32) is provided with a limiting groove (321), and the heating tube (31) is snapped into the limiting groove (321).
6. The heating cavity (23) structure according to claim 5, characterized in that, When the heating tube (31) is wrapped in two or more layers, the limiting member (32) is provided with two or more limiting grooves (321) in the vertical direction, and the number of limiting grooves (321) is consistent with the number of layers of the heating tube (31).
7. The heating cavity (23) structure according to claim 5, characterized in that, Two or more of the limiting members (32) are provided, and the two or more limiting members (32) are distributed at equal intervals along the circumferential side wall of the assembly table (21).
8. The heating cavity (23) structure according to claim 5, characterized in that, The heating tube (31) is provided with pin connectors (311) at both ends, and a fixing member (5) is provided between the two pin connectors (311). A clearance hole (13) is provided on one side wall of the heating chamber cover (1), and the fixing member (5) is snapped into the clearance hole (13).
9. The heating cavity (23) structure according to claim 1, characterized in that, The taper of the flow divider cone (211) is 50°-150°.
10. An air fryer, characterized in that, The device includes a housing body (6), a fixing frame (7), a fan mechanism (8), a frying basket mechanism (9), and a heating chamber (23) structure as described in any one of claims 1-9. The fixing frame (7) is disposed above the housing body (6), the heating chamber (23) structure is assembled inside the fixing frame (7), the fan mechanism (8) is disposed above the heating chamber (23) structure inside the fixing frame (7), and the fan mechanism (8) is connected to the air inlet (11) of the heating chamber cover (1). The heating chamber (23) is connected to the air inlet (11) and the frying basket mechanism (9).