An air fryer

Abstract

The application relates to the technical field of kitchen appliances, and provides an air fryer, which comprises a pot body, a cover body assembly and a heating assembly, the inside of the pot body is provided with a cooking cavity, the cover body assembly comprises a protection part arranged towards the cooking cavity, the protection part is provided with a filtering structure, an exhaust port in communication with the cooking cavity is arranged on the cover body assembly, the heating assembly is mounted on the cover body assembly, and a connecting part of the cover body assembly is detachably connected. The modular detachable design of the application enables the cover body assembly to be integrally detached and cleaned, and completely solves the problems of many cleaning dead angles of a traditional air fryer, health hazards and performance reduction caused by oil dirt accumulation, and the air fryer has the advantages of convenient cleaning, health and safety, prolonged equipment life and the like.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and more particularly to an air fryer. Background Technology

[0002] Air fryers, as a highly efficient kitchen appliance, heat air through heating elements, and then a fan circulates the hot air at high speed into the cooking chamber, causing a crispy layer to quickly form on the surface of the food, making them very popular with consumers.

[0003] Currently, grease tends to accumulate in the cooking cavity, heating element, and fan blades of air fryers, creating hard-to-clean dead corners. This not only breeds bacteria and produces harmful substances but also causes odor residue. In addition, grease buildup can hinder hot air circulation, reduce heating efficiency and uniformity, and corrode key components, affecting the lifespan of the equipment and its safety.

[0004] The existing structure cannot fundamentally solve the above problems, and a new design is urgently needed to achieve thorough cleaning, improve hygiene and safety, and extend equipment life. Utility Model Content

[0005] This application provides an air fryer with a removable and washable lid, which solves the core problems of traditional air fryers, such as difficulty in cleaning, hygiene hazards, and performance degradation.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides an air fryer, comprising:

[0008] The pot body has a cooking cavity inside;

[0009] A lid assembly is fitted onto the pot body;

[0010] A heating component is mounted on the cover assembly and is detachably connected to the connection portion of the cover assembly;

[0011] The cover assembly includes a protective portion disposed toward the cooking cavity, and the protective portion is provided with a filter structure;

[0012] The cover assembly has an exhaust port that communicates with the cooking cavity.

[0013] As an optional implementation, the lid assembly includes a lid that covers the pot body; the connecting portion includes a mounting ring and a detachable connecting structure, the mounting ring being mounted on the lid and communicating with the cooking cavity;

[0014] The protective part includes a protective cover disposed on the side of the mounting ring facing the cooking cavity.

[0015] As an optional implementation, the heating assembly includes a burner head, a heating element, a hot air fan blade, and a motor. One end of the burner head extends into the cooking cavity through the through hole of the mounting ring, and the burner head and the mounting ring are detachably connected via the detachable connection structure. The hot air fan blade and the heating element are both installed at the end of the burner head that extends into the cooking cavity, and the heating element is located inside the protective cover and is wrapped by the protective cover.

[0016] The motor is installed inside the furnace head, and the output shaft of the motor is driven and connected to the hot air fan blades. The motor is also electrically connected to the heating tube.

[0017] As an optional implementation, the vent includes a first vent and a second vent, with the first vent located at the edge of the cover and the second vent located on the side of the mounting ring.

[0018] As an optional implementation, the detachable connection structure includes a snap-fit ​​structure, which includes at least two snaps and a slot that matches the snaps, one of which is disposed on the outer periphery of the burner head and the other is disposed on the inner periphery of the mounting ring.

[0019] As an optional implementation, the number of the three screws is three, and the three screws are spaced at different intervals on the outer periphery of the burner head or on the inner periphery of the mounting ring.

[0020] As an optional implementation, a metal partition is installed circumferentially on the inner side of the mounting ring.

[0021] As an optional implementation, the protective cover includes an annular protective cover wall and a bottom cover, wherein the annular protective cover wall and the bottom cover are detachably connected; the inner wall of the annular protective cover wall is adapted to the outer periphery of the heating tube.

[0022] As an optional implementation, the filter structure includes a plurality of filter holes formed on the annular protective cover wall and the bottom cover.

[0023] As an optional implementation, the protective cover is made of stainless steel and has an anti-stick coating on its surface.

[0024] Compared with the prior art, the beneficial effects of this application are as follows:

[0025] By employing a detachable, modular connection between the heating element and the cover assembly, users can easily disassemble the entire cover assembly for thorough cleaning, fundamentally eliminating cleaning dead zones inherent in traditional one-piece structures. By placing the vent on the cover assembly, the problem is effectively transferred from the previously uncleanable internal channels to a detachable component, allowing even this easily clogged and oil-accumulated area to be easily flushed, ensuring smooth venting and hygiene. Ultimately, this achieves a comprehensive effect of improved cleaning convenience, elimination of hygiene hazards, maintenance of long-term stable equipment operation, and enhanced user safety. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0027] Figure 1 Three-dimensional representation of the embodiments of this application Figure 1 ;

[0028] Figure 2 for Figure 1 Exploded view diagram;

[0029] Figure 3 for Figure 1 A schematic cross-sectional view;

[0030] Figure 4 for Figure 1 An exploded view of the cover structure;

[0031] Figure 5 Three-dimensional representation of the embodiments of this application Figure 2 ;

[0032] Figure 6 for Figure 5 Exploded view diagram;

[0033] Figure 7 for Figure 5 A schematic cross-sectional view;

[0034] Figure 8 for Figure 5 An exploded view of the cover structure;

[0035] Figure 9 The three-dimensional heating assembly of this application embodiment Figure 1 ;

[0036] Figure 10 for Figure 9 Exploded view diagram;

[0037] Figure 11 for Figure 9 A schematic diagram of the bottom view;

[0038] Figure 12 The three-dimensional heating assembly of this application embodiment Figure 2 ;

[0039] Figure 13 The three-dimensional protective cover of this application embodiment Figure 1 ;

[0040] Figure 14 for Figure 13 A schematic diagram of the structural breakdown;

[0041] Figure 15 The three-dimensional protective cover of this application embodiment Figure 2 ;

[0042] Figure 16 for Figure 15 A schematic diagram of the structure breakdown.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100. Pot body; 110. Cooking cavity; 200. Lid assembly; 210. Connecting part; 211. Mounting ring; 220. Protective part; 221. Protective cover; 2211. Annular protective cover wall; 2212. Bottom cover; 2213. Filter hole; 230. Lid; 300. Heating assembly; 310. Burner head; 320. Heating tube; 330. Hot air fan blade; 340. Motor; 400. First exhaust port; 500. Second exhaust port; 600. Hook; 700. Slot; 800. Metal partition.

[0045] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0046] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0047] Air fryers present several technical challenges during long-term use, significantly impacting user experience and safety: First, cleaning difficulties and health hazards: Grease and food residue from cooking adhere to the inner walls of the cooking chamber, heating elements, and fan blades. At high temperatures, grease easily carbonizes, forming stubborn stains that are difficult to remove with regular wiping or detergents. Inadequately cleaned grease and residue can breed bacteria such as Salmonella and E. coli, as well as mold, in humid environments, releasing harmful spores and threatening food safety. Repeatedly heated grease can also produce volatile organic compounds (VOCs) and acrylamide, which can cause respiratory problems with long-term inhalation. Second, performance and lifespan issues: Grease can clog heating elements or fan blades, leading to poor hot air circulation, uneven heating, increased energy consumption, or longer cooking times. The rancid odor of residual grease can permeate freshly cooked food, affecting taste. Long-term grease buildup can also corrode metal components such as the fan shaft and temperature sensor, shortening the device's lifespan and even causing mechanical failures. Thirdly, there are limitations of traditional design: the lid and burner assembly of traditional air fryers are fixedly connected (e.g., fixed with screws, one-piece molding), making them impossible to separate for cleaning and creating cleaning dead zones. The exhaust port and exhaust channel are integrated inside the body, and oil and residue accumulate over time, making them difficult to clean thoroughly and further aggravating hygiene problems.

[0048] To address the aforementioned technical problems, this application provides an air fryer, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The device includes a pot body 100, a lid assembly 200, and a heating assembly 300. The lid assembly 200 covers the pot body 100, and the heating assembly 300 is mounted on the lid assembly 200 and is detachably connected to the lid assembly 200 via a connecting part 210. The lid assembly 200 includes a protective part 220 facing the cooking cavity 110, and the protective part 220 is provided with a filter structure. The lid assembly 200 has an exhaust port communicating with the cooking cavity 110.

[0049] The pot body 100 has a cooking cavity 110 inside for placing food ingredients, providing a closed space for heating the food ingredients. Its inner wall preferably has a food-grade non-stick coating to reduce food sticking and oil stains.

[0050] The lid assembly 200 includes a lid 230 that covers the top of the pot body 100. The connecting part 210 includes a mounting ring 211 and a detachable connecting structure. The mounting ring 211 is mounted on the lid 230 and communicates with the cooking cavity 110. The heating assembly 300 extends into the cooking cavity 110 from the mounting ring 211. A first exhaust port 400 communicating with the cooking cavity 110 is provided at the edge of the lid 230, replacing the traditional concealed exhaust channel and avoiding the accumulation of oil stains.

[0051] In one possible implementation, the cover 230 can be made of food-grade plastic, stainless steel, or high borosilicate glass. The mounting ring 211 is detachably mounted on the edge of the mounting through-hole on the cover 230, and is made of food-grade high-temperature resistant plastic. Its inner side has a connection part that mates with the heating element 300, making it the core component for detachably connecting the heating element 300 and the cover 230. The protective part 220 includes a protective cover 221, which is detachably mounted on the side of the mounting ring 211 facing the cooking cavity 110, forming an overall "cover" structure.

[0052] The lowest point of the cover 230 is level with or lower than the lowest point of the protective cover 221 to ensure that the protective cover 221 does not intrude into the cooking cavity 110 and occupy the cooking space. If there is no requirement for the actual usable space of the cooking cavity 110, the protective cover 221 can also protrude from the bottom of the cover.

[0053] See Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, the heating component 300 is the core heating unit of the equipment, including the burner head 310, heating tube 320, hot air fan blades 330 and motor 340. All components work together to achieve hot air circulation heating.

[0054] The specific structure and connection relationship are as follows: The burner head 310 has a columnar structure, with its lower end passing through the mounting ring 211 and extending into the cooking cavity 110. It is detachably connected to the mounting ring 211 via the mounting structure on the outer wall. The burner head 310 has an internal cavity to accommodate the motor 340, and is externally wrapped with a heat insulation layer (such as ceramic fiber material) to prevent heat conduction to the outside and potential burns to the user. The heating element 320 is a ring-shaped or U-shaped food-grade stainless steel heating element with power adapted to the equipment capacity. It is detachably installed at the end of the burner head 310 that extends into the cooking cavity 110, and is completely located inside and enclosed by the protective cover 221.

[0055] Because the outer diameter of the heating element 320 matches the aperture of the mounting ring 211, it ensures that the heating element 320 can smoothly pass through the mounting ring 211 and extend into the cooking chamber 110, while preventing oil stains from seeping into the burner head 310 through the mounting through-hole of the cover 230. The heating element 320 is connected in parallel with the motor 340 via wires, and its start and stop are synchronously controlled by the main control board of the equipment. After being powered on, it can quickly heat up to 200~220℃ to provide heat for cooking.

[0056] The hot air fan blade 330 is made of food-grade plastic or metal (preferably metal, which is heat-resistant and not easily deformed). It is installed at the center of the lower end of the burner head 310, inside the heating tube 320. The central shaft of the hot air fan blade 330 is connected to the output shaft of the motor 340 through a coupling. After the motor 340 is started, it drives the hot air fan blade 330 to rotate at high speed, converting the heat generated by the heating tube 320 into hot air, which is blown into the cooking cavity 110 through the filter structure on the protective cover 221 to achieve uniform heating of the food.

[0057] The motor 340 is a high-temperature resistant DC motor (temperature resistance ≥100℃), which is fixedly installed in the cavity inside the furnace head 310. The motor 340 is electrically connected to the equipment power supply, main control board and heating tube 320 through wires. On the one hand, it provides driving force for the hot air fan blades 330, and on the other hand, it is synchronously controlled with the heating tube 320 to ensure that heating and hot air circulation work together. In one possible implementation, the motor 340 is equipped with heat sinks on the outside to avoid overheating damage during long-term operation.

[0058] In one possible implementation, the mounting ring 211 can be made of plastic and has an overall annular stepped shape, including an upper positioning section, a middle sealing section, and a lower connecting section. The outer diameter of the upper positioning section is slightly larger than the diameter of the mounting through hole of the cover 230, forming an annular retaining edge that can rest on the edge of the mounting through hole on the upper surface of the cover 230 to prevent the mounting ring 211 from falling into the cooking cavity 110 from above.

[0059] The outer diameter of the central sealing section is perfectly matched with the diameter of the mounting through hole of the cover 230. An annular sealing groove is opened on the outer wall, and a food-grade silicone sealing ring is built in. After assembly, the sealing ring fits tightly with the inner wall of the mounting through hole of the cover 230 to prevent hot air from leaking out of the gap during cooking.

[0060] The inner wall of the lower connecting section is provided with a snap-fit ​​groove or threaded hole that mates with the protective cover 221 for connecting the protective cover 221. The mounting ring 211 can be removed separately from the mounting through hole of the cover 230, and the protective cover 221 can be removed separately from the mounting ring 211 without disassembling the cover 230 or other parts. Users can clean the protective cover 221 or the mounting ring 211 separately according to their cleaning needs, making the operation convenient.

[0061] In one possible implementation, see [link to relevant documentation]. Figure 13 and Figure 14As shown, the protective cover 221 includes an annular protective cover wall 2211 and a bottom cover 2212, which are detachably connected to form a cover structure with an "open at the top and closed at the bottom," completely enclosing the heating tube 320 and the hot air fan blades 330. The annular protective cover wall 2211 is made of food-grade stainless steel sheet, manufactured by stamping and rolling processes. The upper end of the annular protective cover wall 2211 is fixed to the lower end face of the mounting ring 211 by a buckle or food-grade screws, and the inner wall of the lower end is provided with an annular connecting groove for mating with the bottom cover 2212.

[0062] The filtration structure includes multiple filter holes 2213 formed on the annular protective cover wall 2211 and the bottom cover 2212. The inner diameter of the annular protective cover wall 2211 is adapted to the outer diameter of the heating tube 320, ensuring that the heating tube 320 and the hot air fan blades 330 are completely located inside the protective cover wall with no exposed areas, preventing food particles from entering the gap between the protective cover 221 and the heating tube 320, while ensuring that hot air can pass smoothly through the filter holes 2213 of the annular protective cover wall 2211. The filter holes 2213 are evenly formed on the surface of the annular protective cover wall 2211, with a hole diameter of 0.8~1.2mm (capable of intercepting oil particles from food splashes without obstructing the flow of hot air), a hole spacing of 2~3mm, and a total filter hole area ≥ 60% of the surface area of ​​the annular protective cover wall to ensure hot air circulation efficiency.

[0063] The bottom cover 2212 is made of the same material as the annular protective cover wall 2211 (food-grade stainless steel), manufactured by stamping. Its diameter matches the lower inner diameter of the annular protective cover wall 2211, and its edge has an annular protrusion that matches the annular connecting groove of the annular protective cover wall 2211, allowing for detachable snap-fit ​​connection (or fixation with food-grade screws; either connection method can be selected according to the machine model). The bottom cover 2212 serves as the bottom sealing structure of the protective cover 221, preventing food from contacting the heating element 320 from below, while also absorbing oil stains falling from above. The filter holes 2213 on the surface of the bottom cover 2212 have the same diameter and spacing as the filter holes 2213 in the annular protective cover wall 2211.

[0064] The inner wall of the annular protective cover 2211 precisely fits the outer periphery of the heating tube 320 and the hot air fan blades 330, ensuring that the heating tube 320 and the hot air fan blades 330 are located in the center of the protective cover 221 without any offset, thus preventing partial exposure of the heating tube and resulting in food carbonization. The upper end of the protective cover 221 is fixed to the mounting ring 211 and is disassembled simultaneously with the cover 230 along with the mounting ring 211, eliminating the need for users to disassemble the protective cover 221 separately, simplifying the cleaning process. The total height of the protective cover 221 is designed so that the lowest point of the cover 230 is level with or lower than the lowest point of the protective cover 221, ensuring that the protective cover does not intrude into the effective food area of ​​the cooking cavity 110 and does not affect the amount of food that can be placed inside.

[0065] In one possible implementation, the connection method between the annular protective cover wall 2211 and the bottom cover 2212 is as follows: the depth of the annular connecting groove of the annular protective cover wall 2211 is 1~2mm, and the height of the annular protrusion of the bottom cover 2212 is consistent with the depth of the connecting groove. After snapping, the connection is prevented from loosening by rotation positioning. If screw connection is used, 3~4 screw holes are evenly opened at the lower end of the protective cover wall and the edge of the cover bottom, and food-grade stainless steel screws are used for fixing. When disassembling, it is only necessary to unscrew the screws to separate.

[0066] In one possible implementation, the filter hole 2213 can be diamond-shaped or wavy. The larger porosity of the diamond-shaped hole can reduce the resistance when the airflow passes through. At the same time, the corner structure of the diamond-shaped hole can form an oil sludge guiding channel, allowing the attached oil sludge to slide down along the corners to the bottom of the protective cover instead of accumulating at the opening, reducing the probability of oil sludge clogging the pores and extending the cleaning cycle of the protective cover.

[0067] The wavy edges of the perforations are continuously wavy, increasing the contact area of ​​the perforation walls by more than 30% compared to traditional regular perforations (circular or square) for the same perforation area. This significantly increases the probability of oil mist and splattered oil particles carried during hot air circulation coming into contact with the wavy perforation walls. Oil can be temporarily stored in the adsorption grooves of the wavy edges, preventing it from directly passing through the pores and contaminating the heating element 320 and the hot air fan blades 330. Simultaneously, the wavy edges reduce the likelihood of oil rebounding back into the cooking cavity 110 due to airflow impact, improving oil filtration efficiency.

[0068] In one possible implementation, see Appendix Figure 1 As shown, the exhaust port includes a first exhaust port 400 and a second exhaust port 500. The first exhaust port 400 is located at the edge of the cover 230. The cover 230 is a component that covers the top of the pot body 100. Its edge is far away from the food area in the center of the cooking cavity 110. This eliminates the exhaust channel hidden inside the body of the traditional air fryer. During the cooking process, the high-temperature airflow (including oil fumes and water vapor) generated in the cooking cavity 110 does not need to go through the complex internal channels of the body. It can be directly discharged to the outside through the first exhaust port 400 on the edge of the cover 230. The airflow path is short and there are no hidden dead corners. This avoids the problem of oil stains accumulating and being difficult to clean in the traditional hidden channels.

[0069] In one possible implementation, see [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the detachable connection structure in this embodiment is a screw-on structure, which consists of a screw 600 and a slot 700. The two are matched one by one to achieve detachable fixing of the burner head 310 and the mounting ring 211.

[0070] Of the two components, the swivel buckle 600 is located on the outer peripheral wall of the burner head 310, and the slot 700 is located on the inner peripheral wall of the mounting ring 211. The two distribution methods can be selected according to the assembly requirements of the model. In this embodiment, the swivel buckle 600 is preferably located on the outer peripheral wall of the burner head 310, and the slot 700 is located on the inner wall of the mounting ring 211, facilitating processing and disassembly. The swivel buckle 600 is made of food-grade high-temperature resistant plastic or metal and has an L-shaped protruding structure, including a guide section and a locking section. The guide section is an inclined surface (inclination angle 30°~45°) to facilitate the sliding of the swivel buckle 600 into the slot 700 during installation. The locking section is a vertical surface that fits against the vertical inner wall of the slot 700 to prevent loosening during use.

[0071] The slot 700 has an L-shaped groove structure. The groove depth matches the height of the buckle 600, and the groove width matches the width of the buckle 600, ensuring that the buckle 600 slides in without wobbling. The guide end of the slot 700 matches the guide section of the buckle 600, and the locking end fits against the locking section of the buckle 600, forming a stable snap-fit ​​structure. During installation, align the buckle 600 of the burner head 310 with the guide end of the slot 700 of the mounting ring 211, push it in along the guide section, and rotate it clockwise to allow the buckle 600 to enter the locking end of the slot 700, thus fixing the burner head 310 to the mounting ring 211. During disassembly, rotate in the opposite direction, and the buckle 600 slides out of the slot 700 along the guide section, thus separating the burner head 310 from the mounting ring 211.

[0072] In one possible implementation, there are three swivels 600, and the circumferential angles between two adjacent swivels 600 are not equal. The three swivels 600 are non-uniformly distributed on the outer peripheral wall of the burner head 310. The circumferential angles between adjacent swivels are set to 90°, 120°, 150° (or other unequal angle combinations, ensuring that the total angle is 360°). The corresponding slots 700 are also distributed on the mounting ring 211 at the same angle.

[0073] Because the heating tube 320 and hot air fan blade 330 of the heating component 300 need to be precisely aligned with the protective cover 221, and the first exhaust port 400 of the cover 230 needs to be matched with the airflow channel of the burner head 310, the cover component has a clear installation direction requirement.

[0074] The non-uniformly distributed three screws 600 allow the burner head 310 to be assembled with the mounting ring 211 at a single angle. If the angle is incorrect, at least one screw 600 will not align with the slot, making installation impossible. This completely avoids the problems of misalignment leading to failure of the protective cover 221 and vent blockage. While uniformly distributed screws 600 (e.g., at a 120° angle) can achieve installation in any direction, they cannot meet the directional alignment requirements of this application. Compared to two screws, the three-screw design improves connection stability and prevents the screws from loosening during equipment operation. At the same time, compared to four or more screws, it simplifies the processing and disassembly steps.

[0075] To further expand the adaptability of the technical solution and meet the differentiated needs of different users for material safety and structural detail optimization, the technical solution of this application will completely continue the overall structural framework and easy-to-clean core logic of Embodiment 1, and only supplement and adjust the local structure (such as the protection of the mounting ring 211, the specific opening position of the exhaust port, the sealing and material selection of key components). The aim is to further enhance the material safety, cleaning convenience and usage stability of the equipment through more refined design, so that the technical solution can more comprehensively cover the diverse usage needs in the home kitchen scenario, while ensuring that it is highly consistent with the technical concept of the disclosure document and does not deviate from the core goal of detachable cleaning and easy cleaning.

[0076] See Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown in the illustration, this application provides an air fryer, including a pot body 100, a lid 230, a mounting ring 211, a protective cover 221, and a heating assembly 300. The pot body 100 has a cooking chamber 110 inside, and the lid 230 covers the pot body 100. The lid 230 has a mounting through hole communicating with the cooking chamber 110, and the mounting ring 211 is disposed at the mounting through hole of the lid 230. The protective cover 221 is disposed on the side of the mounting ring 211 facing the cooking chamber 110, and the heating assembly 300 is connected to the mounting ring 211 via a detachable connection structure.

[0077] A metal partition 800 is added to the side of the mounting ring 211 facing the cooking cavity 110. The metal partition 800 is made of food-grade stainless steel, is ring-shaped, and its outer diameter matches the inner diameter of the side of the mounting ring 211 facing the cooking cavity 110. It is fixed to the inside of the mounting ring 211 by clips or food-grade screws. This completely covers the plastic mounting ring 211, preventing it from directly contacting the high-temperature food and steam inside the cooking cavity 110. This avoids the release of harmful substances from the plastic under prolonged high temperatures and prevents food grease and residue from adhering to the plastic surface, making cleaning difficult. It also meets the high hygiene standards required by some users for a cooking cavity free of plastic contact.

[0078] See appendix Figure 5 As shown, in this embodiment, the mounting ring 211 has a second exhaust port 500 on its side that communicates with the cooking cavity 110, replacing the traditional concealed exhaust channel and preventing oil buildup. The second exhaust port 500 is a long strip-shaped slit or an array of small circular holes. Three to four long strip-shaped slits are evenly spaced along the side of the mounting ring 211, and the edges of the slits are rounded to prevent dirt accumulation and hand injuries during disassembly and assembly. The advantages are a large exhaust area, low airflow resistance, and suitability for large-capacity models.

[0079] The circular perforation array is distributed in a ring on the side of the mounting ring 211. Its advantage is that it can filter out some larger food residues through the small hole diameter, reducing the probability of residues adhering to the edge of the exhaust port when discharged with the airflow. It is suitable for small-capacity models where food is easily splashed.

[0080] See Figure 7 , Figure 15 and Figure 16 As shown, the protective cover 221 in this embodiment also includes an annular protective cover wall 2211 and a bottom cover 2212, which are detachably connected to form a cover structure with an open top and a closed bottom. In this embodiment, the annular protective cover wall 2211 only covers the heating tube 320, while the hot air fan blades 330 are located in the metal partition 800.

[0081] The metal partition 800 can be an annular structure with a central cavity. The hot air fan blade 330 is completely placed in the central cavity. Its upper end is fixed to the inner side of the mounting ring 211, and its lower end is attached to the upper edge of the protective cover 221, forming an independent chamber for the hot air fan blade 330. This physically separates the hot air fan blade 330 from the heating tube 320, preventing oil from spreading from the heating tube 320 area to the hot air fan blade 330 and reducing oil adhesion to the fan blade.

[0082] In one possible implementation, a sealing ring is provided between the burner head 310 and the lid 230. When the air fryer is operating, the sealing ring tightly fits the connection between the burner head 310 and the lid 230, effectively preventing the leakage of high-temperature steam, fumes, and odors from the cooking cavity 110, avoiding heat loss, improving energy efficiency, ensuring a stable high-temperature environment within the cooking cavity, guaranteeing even heating of food, and optimizing cooking results. Simultaneously, it prevents oil stains from contaminating the connection gap between the burner head and the lid, reducing cleaning difficulty, minimizing the risk of corrosion and damage to components due to oil buildup, and extending the lifespan of the air fryer.

[0083] In one possible implementation, the protective cover 221 is made of stainless steel with an anti-stick coating on its surface. The stainless steel material gives the protective cover excellent strength and durability, enabling it to withstand high-temperature environments and the impact of food during cooking, without easily deforming or being damaged. The anti-stick coating further enhances the practicality of the protective cover 221, making it difficult for oil and food residue to adhere to it. During cooking, the protective cover 221 effectively blocks oil droplets and debris generated by food splattering, preventing them from contacting the heating element 300, reducing scale buildup on the surface of the heating element 300, lowering the risk of short circuits and malfunctions caused by oil buildup, ensuring stable operation of the heating element 300, and extending its service life.

[0084] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0085] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An air fryer, characterized in that, include: The pot body (100) has a cooking cavity (110) inside. A lid assembly (200) is provided on the pot body (100); A heating component (300) is mounted on the cover assembly (200) and is detachably connected to the connection portion (210) of the cover assembly (200); The cover assembly (200) includes a protective portion (220) disposed facing the cooking cavity (110), and the protective portion (220) is provided with a filter structure; The cover assembly (200) has an exhaust port that communicates with the cooking cavity (110).

2. An air fryer according to claim 1, characterized in that, The cover assembly (200) includes a cover (230) covering the pot body (100); the connecting part (210) includes a mounting ring (211) and a detachable connecting structure, the mounting ring (211) being mounted on the cover (230) and communicating with the cooking cavity (110); The protective part (220) includes a protective cover (221) disposed on the side of the mounting ring (211) facing the cooking cavity (110).

3. An air fryer according to claim 2, characterized in that, The heating assembly (300) includes a burner head (310), a heating tube (320), a hot air fan blade (330), and a motor (340). One end of the burner head (310) extends into the cooking chamber (110) through the through hole of the mounting ring (211). The burner head (310) and the mounting ring (211) are detachably connected through the detachable connection structure. The hot air fan blade (330) and the heating tube (320) are both installed at the end of the burner head (310) that extends into the cooking chamber (110). The heating tube (320) is located inside the protective cover (221) and is wrapped by the protective cover (221). The motor (340) is installed inside the furnace head (310), the output shaft of the motor (340) is driven and connected to the hot air fan blade (330), and the motor (340) is electrically connected to the heating tube (320).

4. An air fryer according to claim 2, characterized in that, The exhaust port includes a first exhaust port (400) and a second exhaust port (500). The first exhaust port (400) is located at the edge of the cover (230), and the second exhaust port (500) is located on the side of the mounting ring (211).

5. An air fryer according to claim 3, characterized in that, The detachable connection structure includes a snap fastener structure, which includes at least two snap fasteners (600) and a slot (700) that matches the snap fasteners (600), one of which is disposed on the outer periphery of the burner head (310) and the other is disposed on the inner periphery of the mounting ring (211).

6. An air fryer according to claim 5, characterized in that, The number of the three screws (600) is three, and the three screws (600) are spaced at different distances on the outer periphery of the burner head (310) or on the inner periphery of the mounting ring (211).

7. An air fryer according to any one of claims 2-6, characterized in that, A metal partition (800) is installed circumferentially on the inner side of the mounting ring (211).

8. An air fryer according to claim 3, characterized in that, The protective cover (221) includes an annular protective cover wall (2211) and a bottom cover (2212), the annular protective cover wall (2211) and the bottom cover (2212) are detachably connected; the inner wall of the annular protective cover wall (2211) is adapted to the outer periphery of the heating tube (320).

9. An air fryer according to claim 8, characterized in that, The filtration structure includes a plurality of filter holes (2213) formed on the annular protective cover wall (2211) and the bottom cover bottom (2212).

10. An air fryer according to any one of claims 2-4, characterized in that, The protective cover (221) is made of stainless steel, and the surface of the protective cover (221) is provided with an anti-stick coating.

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