Air fryer

Abstract

The embodiment of the utility model discloses an air fryer which comprises a heating upper cover, the heating upper cover comprises a cover body and a hot air assembly arranged in the cover body, a containing cavity is formed in the cover body, the hot air assembly is arranged in the containing cavity and comprises a hot air fan and a heating piece, and the heating upper cover further comprises a driving piece arranged in the containing cavity and used for driving the heating piece to rotate. The output end of the driving part is connected with the hot-air fan; the control device is arranged in the containing cavity and used for controlling the driving part to work; the pot body comprises a cooking cavity communicated with the containing cavity, the heating upper cover detachably covers the pot body, and the hot air assembly is used for conveying hot air into the cooking cavity.

Description

Technical Field

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

[0002] An air fryer is a kitchen appliance that uses hot air to fry food. Compared with traditional fried foods, food fried in an air fryer has a lower oil content, thus providing users with a healthier food option.

[0003] In related technologies, air fryers include a main body, with the working components for generating hot air typically housed within it. The pot is inserted into or detached from the main body via a pull-out mechanism for easy cooking or retrieving of food. This integrated structure limits the use of air fryers to a relatively limited range of applications, failing to meet the multifunctional needs of modern families for small appliances. Utility Model Content

[0004] This application discloses an air fryer with a detachable heating cover and a pot body. The pot body can be separated from the heating cover and used in other application scenarios, thereby improving the versatility of the air fryer.

[0005] To achieve the above objectives, this application discloses an air fryer, comprising: a heating cover, the heating cover including a cover body and a hot air assembly disposed within the cover body, the cover body forming a receiving cavity, the hot air assembly disposed within the receiving cavity, the hot air assembly including a hot air fan and a heating element, the heating cover further comprising: a driving member disposed within the receiving cavity, the output end of the driving member being connected to the hot air fan; a control device disposed within the receiving cavity, the control device being used to control the operation of the driving member; and a pot body, the pot body including a cooking cavity communicating with the receiving cavity, the heating cover being detachably disposed on the pot body, and the hot air assembly being used to deliver hot air into the cooking cavity.

[0006] In one possible implementation, the pot body includes a first pot body, a second pot body, and a first heat insulation layer formed between the first pot body and the second pot body.

[0007] In one possible implementation, the first insulation layer contains an insulation medium or is a vacuum layer.

[0008] In one possible implementation, the second pot body is fitted over the outside of the first pot body, and the second pot body and the first pot body are sealed together, with the first heat insulation layer surrounding the outer peripheral surface of the first pot body; and / or

[0009] The first pot body and the second pot body are an integral structure.

[0010] In one possible implementation, the distance between the first pot body and the second pot body is L1, where 5mm < L1 < 15mm.

[0011] In one possible implementation, the thickness of the pot body is W1, where 7mm < W1 < 20mm.

[0012] In one possible implementation, the pot body is a light-transmitting pot body, which includes an inner surface and an outer surface that are capable of transmitting light.

[0013] In one possible implementation, the distance between the inner surface and the outer surface is P1, where 7mm < P1 < 20mm.

[0014] In some possible implementations, the yield strength of the first pot body and the second pot body is σs1, where σs1≥200MPa.

[0015] In some possible implementations, the tensile strength of the first pot body and the second pot body is σb1, where σb1 ≥ 500 MPa.

[0016] In one possible implementation, the cover includes a first cover, a second cover, and a second heat insulation layer, wherein the second heat insulation layer is formed between the first cover and the second cover.

[0017] In one possible implementation, the second insulation layer contains an insulation medium or is a vacuum layer.

[0018] In one possible implementation, the second cover is fitted over the outside of the first cover, and the second cover and the first cover are sealed together, and the second heat insulation layer surrounds the outer peripheral surface of the first cover; and / or the first cover and the second cover are an integral structure.

[0019] In one possible implementation, the distance between the first cover and the second cover is L2, and the distance between the first pot body and the second pot body is L1, wherein L2 < L1.

[0020] In one possible implementation, the distance between the first cover and the second cover is L2, where 3mm < L2 < 10mm.

[0021] In some possible implementations, the thickness of the cover is W2, where 5mm < W2 < 17mm.

[0022] In one possible implementation, the air fryer further includes: a locking element rotatably disposed on one of the lid or the pot body; and a mating part disposed on the other of the lid or the pot body, wherein the locking element can lock or unlock with the mating part, and the heating lid is detachably connected to the pot body via the locking element.

[0023] In one possible implementation, the air fryer further includes a sealing ring disposed in at least one of the heating cover or the pot body, the sealing element being used to seal the gap between the heating cover and the pot body.

[0024] In one possible implementation, the air fryer further includes a baking tray detachably disposed within the cooking cavity, the baking tray being used to place food, and the baking tray having multiple ventilation openings.

[0025] In one possible implementation, the volume of the pot is V1, where 3L < V1 < 18L.

[0026] In one possible implementation, the height of the pot body is H1, where 100mm < H1 < 450mm.

[0027] Compared with the prior art, the beneficial effects of this application are:

[0028] Thus, the air fryer provided in this application embodiment adopts a layered structure design with excellent heat insulation performance. The layered structure includes a first heat insulation layer, which reduces the high temperature conducted to the outer surface of the pot, thus reducing the risk of burns to the user during use. Simultaneously, due to the excellent heat insulation performance of the pot body, no additional outer shell is needed, achieving a shell-less design for the air fryer. This makes the overall size of the air fryer more compact, saving kitchen space and meeting the modern family's demand for miniaturized kitchen appliances.

[0029] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is one of the structural schematic diagrams of an air fryer provided in an embodiment of this application;

[0032] Figure 2 This is a second schematic diagram of the structure of an air fryer provided in an embodiment of this application;

[0033] Figure 3 This is the third schematic diagram of the structure of an air fryer provided in the embodiments of this application;

[0034] Figure 4 for Figure 2 A cross-sectional view along the AA direction;

[0035] Figure 5 for Figure 4 Cross-sectional view along the BB direction;

[0036] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0037] Figure 7 for Figure 5 Enlarged view of point B in the middle;

[0038] Figure 8 This is a schematic diagram of the explosion structure of an air fryer provided in an embodiment of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1-Air fryer; 10-Heating lid; 101-Lid body; 1011-Inner lid; 1012-Outer lid; 1013-Second insulation layer; 1015-Air inlet; 102-Hot air assembly; 1021-Heating element; 1022-Hot air fan; 103-Driver; 104-Control device; 105-Reflector; 106-Lid plate; 107-Insulation cover; 108-Cold air fan; 109-Air outlet grille; 110-Receiving cavity; 20-Pot body; 201-First pot body; 202-Second pot body; 203-First insulation layer; 204-Baking tray; 205-Cooking cavity; 30-Locking fastener; 40-Matching part; 50-Sealing ring. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0043] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0044] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0045] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0046] Please refer to this as well. Figures 1 to 5 This application provides an air fryer 1, which includes a heating cover 10 and a pot body 20. The heating cover 10 and the pot body 20 are two relatively independent parts of the air fryer 1, and the heating cover 10 is detachably disposed on the pot body 20.

[0047] like Figures 1 to 3 As shown, specifically, the heating cover 10 can be detached from the pot body 20 via a snap-fit ​​assembly, or the heating cover 10 can also be detachably mounted on the pot body 20 via other positioning structures (such as positioning grooves).

[0048] The technical solution that allows the heating cover 10 to be separated from the pot body 20 enables the air fryer 1 to have a wider range of applications. For example, the pot body 20 can also be used as a container in other scenarios of cooking or blanching food, that is, the pot body 20 can be used as a cooking pot or hot pot.

[0049] like Figure 4 river Figure 5 As shown, the heating cover 10 may include a cover body 101, which is the outer appearance part of the heating cover 10. The cover body 101 is constructed as a cavity structure with a receiving cavity for accommodating the working parts of the air fryer 1.

[0050] For example, the air fryer 1 also includes working components that require electrical energy, such as a hot air assembly 102, a control device 104, and a power supply device. These working components can be located inside the cover 101, that is, all the parts that require electricity can be integrated into the heating cover 10, which improves the integration of the heating cover 10.

[0051] like Figures 1 to 4 As shown, when the heating cover 10 is placed on the pot body 20, the hot air assembly 102 is positioned above the pot body 20. The high-temperature hot air generated by the hot air assembly 102 can be directly and evenly blown into the cooking chamber 205 from the top of the pot body 20. The hot air can circulate fully within the pot body 20, ensuring a more even temperature distribution. Compared to some related technologies where high-temperature hot air is blown into the frying bucket from the side, blowing hot air from the top of the pot body effectively avoids the problem of localized overheating or undercooking of food due to concentrated heat.

[0052] In addition, the heating cover 10, which can be separated from the pot body 20, allows the air fryer 1 to be equipped with different cooking accessories other than the pot body 20, thus meeting the diverse cooking needs of users.

[0053] like Figure 4 and Figure 5 As shown, the pot body 20 includes a cooking cavity 205 for placing food ingredients. When the heating cover 10 is placed on the pot body 20, the hot air generated by the hot air assembly 102 can be delivered into the cooking cavity 205 to heat the food ingredients with high-temperature hot air and produce a frying cooking effect.

[0054] In some embodiments, such as Figure 5 As shown, when the heating cover 10 is placed on the pot body 20, the receiving cavity 110 is connected to the cooking cavity 205, so that high-temperature hot air enters the cooking cavity 205 to cook the ingredients.

[0055] In some embodiments, such as Figure 4 , Figure 5 As shown, the heated top cover 10 includes a hot air assembly 102. (As indicated...) Figure 4 , Figure 5As shown, the hot air assembly 102 may include a heating element 1021 and a hot air fan 1022. Along the height direction, the heating element 1021 is located between the hot air fan 1022 and the pot body 20, so that the heat energy generated by the heating element 1021 can be quickly and evenly distributed in the cooking cavity 205 by the airflow generated by the hot air fan 1022, which helps the food to cook evenly.

[0056] Optionally, the heating element 1021 can be a heat pipe, a microwave heating element 1021, or an infrared heating element 1021, etc.

[0057] Optionally, the heating element 1021 can be a quartz glass heating tube. The power of the heating element 1021 can be 800W.

[0058] Optionally, the hot air fan 1022 can be a cross-flow plastic centrifugal fan impeller. The diameter of the hot air fan 1022 can be between 90mm and 100mm.

[0059] In some embodiments, such as Figure 4 , Figure 5 As shown, the heating cover 10 may include a drive unit 103. The output end of the drive unit 103 is connected to the hot air fan 1022. In order to reduce the overall height of the air fryer 1, the drive unit 103 may be an ultra-thin drive unit 103, and the hot air fan 1022 may be an ultra-thin fan, so as to reduce the space occupied by the hot air assembly 102 in the height direction of the receiving cavity 110.

[0060] Optionally, the drive unit 103 can be a 57 stepper motor. The rated voltage of the drive unit 103 is 24V and the phase current is 1.7A.

[0061] In some embodiments, the heated top cover 10 further includes a control device 104. The control device 104 may include an operation panel and a processor, etc.

[0062] The control panel can receive preset cooking modes or custom cooking parameters, such as temperature and time, set by the user via touch operation. Optionally, the control panel may include an OLED display, rotary switches, and push-button switches.

[0063] The processor, as the core component of the control device 104, is used to receive instructions input by the user through the operation panel and adjust the working parameters of the hot air assembly 102 according to the preset algorithm to achieve the best cooking effect.

[0064] The control device 104 may also include a circuit board, which may include an L298N dual-channel driver chip.

[0065] In addition, the control device 104 can also connect to the user's mobile phone via Wi-Fi or Bluetooth, allowing the user to remotely control the air fryer 1 and check the cooking progress via their mobile phone.

[0066] In some embodiments, the heated top cover 10 further includes a power supply device. The power supply device may include a power board for connecting a power source and electrical components such as the control device 104 and the drive unit 103.

[0067] Optionally, the power supply unit adopts an AC-DC switching power supply module, which can input 220V AC voltage and output 24V DC voltage.

[0068] The hot air assembly 102, drive unit 103, control device 104 and power supply device are all located in the receiving cavity 110 inside the cover 101. This allows the electrical components to be integrated into the heating cover 10, and the pot body 20 does not have any electrical components. This makes the pot body 20 easy to clean and convenient to use as a regular pot or as a lunch box.

[0069] Thus, the air fryer provided in this embodiment has a detachable heating lid and pot body, with the electrical components integrated into the heating lid and detachable from the pot body. This allows users to fry food using the combination of the heating lid and pot body. In other usage scenarios, the pot body can be used separately as a saucepan or stew pot, thus achieving the air fryer's versatility.

[0070] In some embodiments, to improve the safety of using the pot body 20, and to further miniaturize and thin the pot body 20. For example... Figure 4 and Figure 5 As shown, the pot body 20 includes a first pot body 201 and a second pot body 202, wherein there is a gap between the first pot body 201 and the second pot body 202, and the gap forms a first heat insulation layer 203 with heat insulation properties.

[0071] The first pot body 201, the first heat insulation layer 203, and the second pot body 202 can be stacked. Because the first heat insulation layer 203 with heat insulation properties is formed between the first pot body 201 and the second pot body 202, even if the first pot body 201 comes into contact with hot air and reaches a high temperature, the heat from the first pot body 201 will not be completely conducted to the second pot body 202 due to the spacing of the first heat insulation layer 203. Thus, during cooking, the second pot body 202 can also maintain a relatively low temperature, reducing the risk of burns to the user. At the same time, it ensures that as much heat as possible is retained within the cooking cavity 205 to achieve the desired cooking effect.

[0072] It is worth noting that since the pot body 20 has good heat insulation performance, the pot body 20 does not need to be covered with an additional outer shell like the air fryer in the related technology, thus simplifying the manufacturing process of the air fryer 1 and further reducing the production cost.

[0073] Furthermore, based on the heat insulation performance of the pot body 20, and the fact that the pot body 20 can be separated from the heating cover 10, the heating cover 10 can be removed after the air fryer 1 has finished cooking, and the pot body 20 can be used alone as a heat preservation container.

[0074] For example, once the pot body 20 is separated from the heating cover 10, it can be transformed into a portable insulated lunch box simply by adding a lid accessory for sealing. Users can carry the pot body 20 directly to picnics or work scenarios without having to transfer food from the pot body 20 to other containers.

[0075] The pot body 20 can be made of metal, that is, both the first pot body 201 and the second pot body 202 are made of metal, such as stainless steel, aluminum-magnesium alloy and carbon steel.

[0076] Specifically, the pot body 20 can be made of stainless steel. Since the pot body 20 comes into direct contact with food, using stainless steel gives it good corrosion resistance and ensures safety when in direct contact with food at high temperatures. Furthermore, the stainless steel second pot body 202 has wear resistance and high resistance to deformation, ensuring that the first heat insulation layer 203 is not easily deformed.

[0077] Thus, the air fryer 1 provided in this embodiment adopts a layered structure design with excellent heat insulation performance for the pot body 20. The layered structure includes a first heat insulation layer 203, which reduces the high temperature conducted to the outer surface of the pot body 20, thereby reducing the risk of burns to the user during use of the air fryer 1. At the same time, because the pot body 20 has good heat insulation performance, there is no need to set an outer shell, making the overall size of the air fryer 1 more compact, saving kitchen space, and meeting the demand of modern families for miniaturized kitchen appliances.

[0078] In some embodiments, such as Figure 4 and Figure 5 As shown, the second pot body 202 is fitted over the outside of the first pot body 201, and the outer surface of the second pot body 202 is the exterior surface. The first pot body 201 forms a cooking cavity 205, and the second pot body 202 is fitted over the entire outer periphery of the first pot body 201 to ensure that the heat of the first pot body 201 is completely isolated by the first heat insulation layer 203.

[0079] In some embodiments, a heat insulation medium may be provided in the first heat insulation layer 203, which may be a heat insulation material such as glass fiber, calcium silicate, or ceramic fiber.

[0080] In some embodiments, the first heat insulation layer 203 can also be a vacuum layer. Specifically, a certain distance is maintained between the first pot body 201 and the second pot body 202 to form an air layer. The edges of the first pot body 201 and the second pot body 202 are then sealed and connected, and a small hole for vacuuming is reserved. When the air layer is in a vacuum state, it is then completely sealed, and the first heat insulation layer 203 becomes a vacuum layer.

[0081] In some embodiments, the first pot body 201 and the second pot body 202 can be an integral structure. The integral structure of the second pot body 202 can prevent gaps from forming at the connection between the two, thus preventing heat loss and further improving the heat insulation performance of the pot body 20, making the pot body 20 safer.

[0082] In some embodiments, the distance between the first pot body 201 and the second pot body 202 is L1, wherein L1 < 15 mm.

[0083] A spacing of L1 < 15mm ensures that the first insulation layer 203 between the first pot body 201 and the second pot body 202 is sufficiently compact while providing effective insulation. If L1 > 15mm, the pot body 20 may be unnecessarily thickened, resulting in a less lightweight and compact design. The L1 < 15mm spacing design balances the insulation performance of the pot body 20 with preventing the volume expansion of the pot body 20 due to excessive space occupied by the first insulation layer 203, thus maintaining the overall compactness of the air fryer 1.

[0084] In some embodiments, such as Figure 5 and Figure 6 As shown, the distance between the first pot body 201 and the second pot body 202 is L1, where L1 > 5mm.

[0085] The L1 > 5mm spacing design ensures sufficient space between the first pot body 201 and the second pot body 202 to form an effective first heat insulation layer 203, thus guaranteeing the effectiveness of the first heat insulation layer 203. Since the pot body 20 needs to be exposed to the heat radiation of hot air for a long time, if L1 < 5mm, the heat insulation performance of the pot body 20 may be insufficient due to the excessively small spacing of the first heat insulation layer 203. At the same time, having a certain spacing in the first heat insulation layer 203 also makes it easier to fill an appropriate amount of heat insulation medium, such as glass fiber, calcium silicate, ceramic fiber, etc., into the first heat insulation layer 203, thereby simplifying the processing technology of the pot body 20.

[0086] Specifically, L1 can be 5.5mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm or 14mm, thus balancing the heat insulation performance of the pot body 20 with a compact design.

[0087] In some embodiments, such as Figure 5 and Figure 6 As shown, the thickness W1 of the pot body 20 can be understood as the overall thickness of the stacked first pot body 201, second pot body 202 and first heat insulation layer 203.

[0088] W1 < 20mm, which makes the pot body 20 thinner and lighter, and makes the pot body 20 smaller and more compact, thus making it easier to carry and allowing the pot body 20 to be used as a container for food in a variety of usage scenarios.

[0089] W1 > 7mm ensures that the pot body 20 has sufficient thickness, providing the first insulation layer 203 with a certain thickness and good insulation performance. Furthermore, both the first pot body 201 and the second pot body 202 have a certain thickness for impact resistance. The thicker pot body 20 also improves the durability and impact resistance of the air fryer 1, making it more reliable during transportation and use, and preventing deformation of the pot body 20 due to bumps during transport. If W1 < 7mm, the second pot body 202 may lack sufficient strength, causing the first insulation layer 203 to fail to maintain its original thickness, thus affecting the insulation performance of the pot body 20.

[0090] Specifically, W1 can be 7.5mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm or 19mm, thus taking into account the heat insulation performance, compact design and structural strength of the pot body 20.

[0091] In some embodiments, such as Figures 1 to 3 As shown, the pot body 20 can be constructed as a cube or cuboid structure. This makes the structure of the pot body 20 more stable and easier to carry and store.

[0092] In some embodiments, the volume of the pot body 20 is V1, wherein 3L < V1 < 18L.

[0093] V1 < 18L allows the pot body 20 to have a sufficiently large capacity to cook larger volumes of food, meeting the needs of ordinary families while ensuring the overall miniaturization of the air fryer 1.

[0094] V1 > 3L, which allows the pot body 20 to have sufficient capacity to meet the needs of a typical small family. Meanwhile, because the overall thickness of the pot body 20 and the first insulation layer 203 are limited in the above embodiments, the pot body 20 can still have a large volume despite its small size, thus achieving both a miniaturized design and meeting the user's cooking needs.

[0095] Specifically, the volume V1 of the pot body 20 can be 5L, 8L, 10L, 10.5L, 11L, 13L or 17.5L.

[0096] In some embodiments, such as Figure 2 As shown, the height of the pot body 20 is H1, where 100mm < H1 < 450mm.

[0097] With H1 < 450mm, the heat transfer path of the hot air is shorter, enabling faster heating and improving the cooking efficiency of the air fryer 1.

[0098] H1 > 100mm ensures that the hot air can circulate fully within the cooking cavity 205, resulting in a more uniform heat distribution and helping to prevent localized burning or uncooking of the food.

[0099] Specifically, the height of the pot body 20 can be 110mm, 160mm, 210mm, 260mm, 310mm, 360mm, 410mm or 440mm.

[0100] At the same time, the limited height of the pot body 20, combined with the limited volume of the pot body 20, allows the cookware to provide sufficient cooking space while maintaining a compact size, making it suitable for both quick daily cooking and family gatherings.

[0101] In some embodiments, the yield strength of the first pot body 201 and the second pot body 202 is σs1, wherein σs1 ≥ 200 MPa

[0102] σs1≥200Mpa ensures that the first pot body 201 and the second pot body 202 have sufficient mechanical strength to withstand external impacts and internal pressures that the pot body 20 may encounter during use, thus ensuring user safety. This yield strength also helps the first pot body 201 and the second pot body 202 maintain their shape and function during long-term use, and are not easily deformed.

[0103] Specifically, the yield strength σs1 of the first pot body 201 and the second pot body 202 can be 200 MPa, 300 MPa, 400 MPa or 500 MPa, so as to ensure that the first pot body 201 and the second pot body 202 can withstand certain pressure and temperature changes during the cooking process, while maintaining the stability and safety of the structure.

[0104] In some embodiments, the tensile strength of the first pot body 201 and the second pot body 202 is σb1, wherein σb1 ≥ 500 MPa.

[0105] A tensile strength of σb1 ≥ 500 MPa ensures that the first pot body 201 and the second pot body 202 possess sufficient mechanical strength to withstand drops and stretching that the pot body 20 may encounter during cooking, thus guaranteeing the structural stability of the air fryer and user safety. Simultaneously, a tensile strength exceeding 500 MPa also helps the first pot body 201 and the second pot body 202 maintain their shape and function during long-term, high-frequency use, preventing unnecessary deformation.

[0106] Specifically, the tensile strength σb1 of the first pot body 201 and the second pot body 202 can be 500 MPa, 510 MPa, 520 MPa, 530 MPa, 540 MPa, 550 MPa, 560 MPa, 570 MPa, 580 MPa, 590 MPa or 600 MPa, so as to ensure that the first pot body 201 and the second pot body 202 can withstand certain pressure and temperature changes during cooking, while maintaining the stability and safety of the pot body 20 structure.

[0107] In some embodiments, the pot body 20 is configured to be entirely translucent, allowing the user to easily monitor the cooking status of the ingredients inside the cooking cavity. During the cooking process, the user can adjust the cooking process at any time based on the observed changes in the state of the ingredients.

[0108] Specifically, in this embodiment, the pot body 20 can be made of glass.

[0109] In some embodiments, the distance between the inner and outer surfaces of the pot body 20 is P1, wherein 7mm < P1 < 20mm.

[0110] P1 < 20mm ensures that the glass pot body 20 has a sturdy and compact structure, reducing heat loss during the transfer process and thus improving thermal efficiency. It also helps save space and makes the pot easy to store.

[0111] P1 > 7mm ensures that the glass pot body 20 has sufficient thickness and structural strength. This spacing also enhances its resistance to thermal shock, improving the durability and safety of the pot body 20. Simultaneously, the thickness of the pot body 20 reduces heat conduction between its inner and outer surfaces, preventing excessively high temperatures on the outer surface that could burn the user.

[0112] Specifically, the distance P1 between the inner surface and the outer surface of the glass pot body 20 can be 8mm, 10mm, 12mm, 15mm, or 18mm. Because the hot air assembly 102 releases a large amount of heat energy during operation, this heat energy will radiate to the lid 101, causing the temperature of the lid 101 to rise and creating a safety hazard. In some embodiments, such as... Figure 4 and Figure 5 As shown, in order to improve the heat insulation performance of the cover 101, the cover 101 of the heating cover 10 in this embodiment of the application is constructed as a stacked structure. The stacked structure includes a first cover 1011 and a second cover 1012 stacked together, wherein there is a gap between the first cover 1011 and the second cover 1012, which is the second heat insulation layer 1013 with heat insulation performance.

[0113] Optionally, the first cover 1011 and the second cover 1012 can be made of stainless steel or high-temperature resistant plastic.

[0114] Because a second heat insulation layer 1013 with heat insulation properties is formed between the first cover 1011 and the second cover 1012, even if the first cover 1011 is close to the hot air assembly 102 and has a high temperature under the heat radiation of the hot air assembly 102, the heat of the first cover 1011 will not be completely conducted to the second cover 1012 due to the spacing of the second heat insulation layer 1013. In this way, the outer surface of the cover 101 can be kept at a relatively low temperature when the hot air assembly 102 is working, reducing the risk of the user being burned by the cover 101.

[0115] It is worth noting that, based on the embodiment of this application, the cover 101 has good heat insulation performance, so the distance between the hot air assembly 102 and the cover 101 can be further reduced. It does not need to maintain a certain heat insulation distance with the hot air assembly as in the outer shell of the air fryer in the related art. This makes the overall structure of the heating cover 10 more compact and the air fryer 1 can be further miniaturized.

[0116] It is understandable that, since both the lid 101 and the pot body 20 have good heat insulation performance, the air fryer 1 provided in this application embodiment can completely eliminate the outer shell of the air fryer in the related technology, making the air fryer 1 more compact and realizing the overall shell-less design of the air fryer 1, further simplifying the processing technology.

[0117] In some embodiments, such as Figure 4 and Figure 5 As shown, the second cover 1012 is fitted over the outside of the first cover 1011, and the outer surface of the second cover 1012 is the outer surface. The first cover 1011 forms a receiving cavity 110 for accommodating the working component, and the second cover 1012 is fitted over the entire outer periphery of the first cover 1011 to ensure that the heat of the first cover 1011 is completely isolated by the second heat insulation layer 1013.

[0118] In some embodiments, a heat insulation medium may be provided in the second heat insulation layer 1013, which may be a heat insulation material such as glass fiber, calcium silicate, or ceramic fiber.

[0119] In some embodiments, the second heat insulation layer 1013 may also be a vacuum layer. Specifically, a certain distance is maintained between the first cover 1011 and the second cover 1012 to form an air layer, and the edges of the first cover 1011 and the second cover 1012 are sealed together, with a small hole reserved for vacuuming. When the air layer is in a vacuum state, it is completely sealed, and the second heat insulation layer 1013 becomes a vacuum layer.

[0120] In some embodiments, the first cover 1011 and the second cover 1012 can be an integral structure. The integral structure of the inner second cover 1012 can reduce the gaps at the connection between the two, prevent heat from escaping through the gaps, and thus improve the heat insulation performance of the cover 101.

[0121] In some embodiments, such as Figure 6 and Figure 7 As shown, the distance between the first cover 1011 and the second cover 1012 is L2, and the distance between the first pot body 201 and the second pot body 202 is L1, where L2 < L1.

[0122] It is worth noting that, since the heat generated by the heating element 1021 is continuously blown into the pot body 20, the heat radiation borne by the lid 101 is lower than that borne by the pot body 20. Therefore, the thickness L2 of the second heat insulation layer 1013 can be less than the thickness L1 of the first heat insulation layer 203, so that the thickness of the lid 101 can be further reduced, thereby providing more space for the working parts of the air fryer 1.

[0123] In some embodiments, such as Figure 5 and Figure 7 As shown, the distance between the first cover 1011 and the second cover 1012 is L2, where L2 < 10 mm.

[0124] With L2 < 10mm, the second insulation layer 1013 between the first cover 1011 and the second cover 1012 is sufficiently compact while providing effective insulation. This spacing design balances insulation performance and avoids volume expansion of the cover 101 due to excessive spacing of the second insulation layer 1013, thus maintaining the overall compactness of the air fryer 1.

[0125] In some embodiments, such as Figure 5 and Figure 7 As shown, the distance between the first cover 1011 and the second cover 1012 is L2, where L2 > 3 mm.

[0126] The L2 > 3mm spacing design ensures that there is enough space between the first cover 1011 and the second cover 1012 to form an effective second heat insulation layer 1013, avoiding the possibility that the heat insulation performance of the cover 101 may be insufficient due to too small a spacing. At the same time, it is easier to fill the second heat insulation layer 1013 with an appropriate amount of heat insulation medium, such as glass fiber, calcium silicate, ceramic fiber, etc., thereby further improving the processing efficiency of the cover 101.

[0127] Specifically, L2 can be 3.5mm, 5mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm or 9mm, thus balancing the heat insulation performance of the cover 101 with a compact design.

[0128] In some embodiments, the thickness W2 of the cover 101 can be understood as the thickness of the stacked structure, that is, the overall thickness of the first cover 1011, the second cover 1012, and the second heat insulation layer 1013.

[0129] W2 < 17mm, making the lid 101 thinner and lighter, thus allowing more space in the lid 101 to house the working parts of the air fryer 1, and further miniaturizing the overall heating lid 10.

[0130] W2 > 5mm ensures that the cover 101 has sufficient thickness to accommodate the second heat insulation layer 1013 and provides good heat insulation performance. In addition, W2 > 5mm allows both the first cover 1011 and the second cover 1012 to have a certain thickness. The cover 101 with a certain thickness also improves the durability and impact resistance of the air fryer 1, making it more reliable during transportation and use.

[0131] Specifically, W2 can be 5.5mm, 7mm, 10mm, 13mm, 14mm, 15mm, 16mm or 16.5mm, thus balancing the heat insulation performance of the cover 101 with a compact design.

[0132] In some embodiments, the yield strength of the first cover 1011 and the second cover 1012 is σs2, wherein σs2 ≥ 200 MPa.

[0133] σs2≥200Mpa ensures that the first cover 1011 and the second cover 1012 have sufficient mechanical strength to withstand external impacts and internal pressures that the cover 101 may encounter during use, thus ensuring user safety. This yield strength also helps the first cover 1011 and the second cover 1012 maintain their shape and function during long-term use and prevents deformation.

[0134] Specifically, the yield strength σs2 of the first cover 1011 and the second cover 1012 can be 200 MPa, 300 MPa, 400 MPa or 500 MPa, so as to ensure that the first cover 1011 and the second cover 1012 can withstand certain pressure and temperature changes during cooking, while maintaining the stability and safety of the structure.

[0135] In some embodiments, the tensile strength of the first cover 1011 and the second cover 1012 is σb2, wherein σb2 ≥ 500 MPa.

[0136] A tensile strength of σb2 ≥ 500 MPa ensures that the first lid 1011 and the second lid 1012 possess sufficient mechanical strength to withstand potential drops and stretching of the lid 101 during cooking, thus guaranteeing the structural stability of the air fryer and user safety. Simultaneously, a tensile strength exceeding 500 MPa also helps the first lid 1011 and the second lid 1012 maintain their shape and function during long-term, high-frequency use, preventing unnecessary deformation.

[0137] Specifically, the tensile strength σb1 of the first cover 1011 and the second cover 1012 can be 500 MPa, 510 MPa, 520 MPa, 530 MPa, 540 MPa, 550 MPa, 560 MPa, 570 MPa, 580 MPa, 590 MPa or 600 MPa, so as to ensure that the first cover 1011 and the second cover 1012 can withstand certain pressure and temperature changes during cooking, while maintaining the stability and safety of the cover 101 structure.

[0138] In some embodiments, such as Figures 1 to 5 As shown, the air fryer 1 also includes a locking element 30 and a mating part 40. The locking element 30 is rotatably disposed on one of the lid 101 or the pot body 20, and the mating part 40 may be formed on the other of the lid 101 or the pot body 20.

[0139] When it is necessary to install the heating cover 10 on the pot body 20, or to remove the heating cover 10 from the pot body 20, the user can press the locking fastener 30 to lock or separate the locking fastener 30 from the pot body 20.

[0140] Optionally, the mating part 40 is a groove structure provided in the lid 101 or the pot body 20.

[0141] In some embodiments, such as Figure 4 and Figure 5 As shown, the air fryer 1 also includes a sealing ring 50.

[0142] Optionally, the sealing ring 50 can be disposed on the heating cover 10 and corresponding to the edge of the pot body 20. When the heating cover 10 is placed on the pot body 20, the sealing ring 50 can seal the gap between the pot body 20 and the heating cover 10 to prevent hot air from leaking out from the gap between the pot body 20 and the heating cover 10 and reducing cooking efficiency.

[0143] Optionally, the sealing ring 50 can be disposed on the edge of the pot body 20. When the heating cover 10 is placed on the pot body 20, the sealing ring 50 can seal the gap between the pot body 20 and the heating cover 10 to prevent hot air from leaking out from the gap between the pot body 20 and the heating cover 10 and thus reducing cooking efficiency.

[0144] In some embodiments, such as Figure 4 and Figure 5 As shown, the heating cover 10 also includes a reflector 105. The reflector 105 is constructed as a cover body and can be snapped and fastened to the cover body 101, sealing the opening of the cover body 101. The reflector 105 can divide the receiving cavity 110 into a hot air cavity and a heat dissipation cavity.

[0145] The heating element 1021 and the hot air fan 1022 are located inside the hot air cavity. The drive element 103, the control device 104, and the power supply device can be located inside the heat dissipation cavity.

[0146] Alternatively, the reflector 105 can be made of galvanized sheet metal. The thickness of the reflector 105 can be between 0.3mm and 0.5mm.

[0147] The reflector 105 effectively reflects the heat generated by the heating element 1021 into the receiving cavity 110 within the pot body 20, resulting in more even heating of the food within the receiving cavity 110, improving cooking efficiency and shortening cooking time. The reflector 105 also isolates the driving element 103, control device 104, and power supply from the heating element 1021, preventing excessive radiation of the high temperature generated by the heating element 1021 to the driving element 103, control device 104, and power supply during cooking, thus avoiding impact on their performance and lifespan.

[0148] In some embodiments, the top of the cover 101 is provided with a cutout. The cutout is a notch formed on the cover 101.

[0149] In some embodiments, such as Figure 1 , Figure 4 , Figure 5 and Figure 8 As shown, the heating cover 10 may also include a cover plate 106. The cover plate 106 is disposed in the hollow portion and connected to the cover body 101. There is a gap between the edge of the cover plate 106 and the inner wall of the hollow portion to form an air inlet 1015, which communicates with the heat dissipation cavity.

[0150] The cover plate 106 is disposed in the hollow part and has a gap between it and the edge of the hollow part formed by the cover body 101. The gap forms an annular air inlet 1015, which is connected to the heat dissipation cavity, so that cold air can effectively enter the heat dissipation cavity and reduce the temperature inside the heat dissipation cavity, thereby effectively preventing the drive component 103, control device 104 and power supply device from being damaged due to high temperature.

[0151] It should be noted that by setting the size of the above gaps appropriately, the airflow into the heat dissipation cavity can be controlled to achieve the expected heat dissipation effect. At the same time, it can also prevent foreign objects from entering the heat dissipation cavity if the air inlet 1015 is too large.

[0152] In some embodiments, the heated top cover 10 may further include a cooling fan 108. The drive unit 103 is connected not only to the hot air fan 1022 but also to the cooling fan 108. The drive unit 103 can simultaneously drive the hot air fan 1022 to rotate and the cooling fan 108 to rotate.

[0153] In some embodiments, such as Figure 4 , Figure 5 and Figure 8 As shown, the heated top cover 10 may also include a heat insulation cover 107. The heat insulation cover 107 is disposed on the reflector 105 and located within the heat dissipation cavity.

[0154] The heat shield 107 is constructed as a cover and disposed within the cover 101. The heat shield 107 covers the reflector 105 and is located within the heat dissipation cavity, while the cooling fan 108 and drive unit 103 are located within the space formed between the reflector 105 and the heat shield 107. The heat shield 107 isolates the hot air assembly 102 from the housing to reduce the large amount of heat energy generated by the hot air assembly 102 radiated to the cover 101.

[0155] Alternatively, the heat shield 107 can be made of heat-insulating materials, such as asbestos or ceramic materials. The heat shield 107 can reduce the radiation of heat energy generated by the hot air assembly 102 to the cover 101, improve the overall energy efficiency of the heating cover 10, and reduce the surface temperature of the cover 101, thereby improving the safety of the air fryer 1 during use.

[0156] Because the heat insulation cover 107 has an opening, the space between the heat insulation cover 107 and the cover 101, as well as the space between the heat insulation cover 107 and the reflector 105, are connected to form a heat dissipation cavity that communicates with the outside. When the driving component 103 drives the cooling fan 108 to rotate, a negative pressure is formed in the heat dissipation cavity. Since the heat dissipation cavity is connected to the outside, a large amount of cold air can enter the cover 101 through the heat dissipation cavity.

[0157] In some embodiments, such as Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8 As shown, the heated top cover 10 also includes an air outlet grille 109. The air outlet grille 109 is disposed on the cover 101, communicates with the heat dissipation cavity, and has multiple air outlets.

[0158] The flow path of the cold air entering from the air inlet 1015 is as follows: When the drive unit 103 drives the cooling fan 108 to rotate, a negative pressure is formed inside the heat insulation cover 107. The cold air enters the interior of the cover 101 from the air inlet 1015, and blows over the control device 104 and the power supply device to cool them down. Subsequently, due to the disturbance of the airflow by the cooling fan 108, the cold air continues to flow into the interior of the heat insulation cover 107. After exchanging heat with the drive unit 103, the cold air flows out of the air outlet.

[0159] In some embodiments, the heat shield 107 includes an opening facing the cover 101. At least a portion of the air vent grille 109 extends into the cover 101 and is connected to the opening of the heat shield 107.

[0160] The heat insulation cover 107 can have an open opening facing the air outlet. The air outlet grille 109 provided on the cover 101 can correspond to the opening and extend into the heat dissipation cavity. In this way, the air outlet grille 109 is connected to the internal space of the heat insulation cover 107, and the two can support each other structurally to ensure that the heat insulation cover 107 and the air outlet grille 109 are stably provided on the cover 101.

[0161] In some embodiments, such as Figure 4 and Figure 5 As shown, the air fryer 1 also includes a baking tray 204. The baking tray 204 is detachably disposed within the cooking cavity 205.

[0162] The baking tray 204 is used to place food. The baking tray 204 is equipped with ventilation holes to allow hot air to pass through it, ensuring that the top and bottom of the food are cooked thoroughly and evenly. At the same time, placing the baking tray inside the cooking cavity 205 also prevents the food from directly contacting the pot body 20 and sticking to it.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An air fryer characterized in that, The air fryer comprises: a heating upper cover, which comprises a cover body and a hot air assembly arranged in the cover body, the cover body is formed with a receiving cavity, the hot air assembly is arranged in the receiving cavity, the hot air assembly comprises a hot air fan and a heating element, and the heating upper cover further comprises: a driving element arranged in the receiving cavity, an output end of the driving element being connected to the hot air fan; a control device arranged in the receiving cavity, the control device being used for controlling the driving element to work; a pot body, which comprises a cooking cavity in communication with the receiving cavity, the heating upper cover being detachably arranged on the pot body, and the hot air assembly being used for conveying hot air into the cooking cavity.

2. The air fryer according to claim 1, wherein the pot body comprises a first pot body, a second pot body and a first heat insulation layer, and the first heat insulation layer is formed between the first pot body and the second pot body.

3. The air fryer according to claim 2, wherein the first heat insulation layer is arranged with a heat insulation medium or is a vacuum layer.

4. The air fryer according to claim 1, wherein the pot body is a light-transmitting pot body, and the pot body comprises an inner surface and an outer surface capable of transmitting light.

5. The air fryer according to claim 4, wherein a distance between the inner surface and the outer surface is P1, and 7mm < P1 < 20mm.

6. The air fryer according to claim 2, wherein the second pot body is arranged on the outside of the first pot body and is sealingly connected with the first pot body, and the first heat insulation layer surrounds the outer circumferential surface of the first pot body; and / or the first pot body and the second pot body are in an integrated structure.

7. The air fryer according to claim 2, wherein a yield strength of the first pot body and the second pot body is σs1, and σs1 ≥ 200Mpa; and / or a tensile strength of the first pot body and the second pot body is σb1, and σb1 ≥ 500Mpa.

8. The air fryer according to claim 1, wherein the cover body comprises a first cover body, a second cover body and a second heat insulation layer, and the second heat insulation layer is formed between the first cover body and the second cover body.

9. The air fryer according to claim 8, wherein the second heat insulation layer is arranged with a heat insulation medium or is a vacuum layer.

10. The air fryer according to claim 8, wherein the second cover body is arranged on the outside of the first cover body and is sealingly connected with the first cover body, and the second heat insulation layer surrounds the outer circumferential surface of the first cover body; and / or the first cover body and the second cover body are in an integrated structure.

11. The air fryer according to any one of claims 2 to 10, wherein, The air fryer further comprises: a baking tray, which is detachably arranged in the cooking cavity, and is used for placing food materials, and a plurality of ventilation openings are arranged on the baking tray.

12. The air fryer according to any one of claims 2 to 10, wherein a volume of the pot body is V1, and 3L < V1 < 18L; and / or The height of the pot body is H1, wherein 100mm < H1 < 450mm.

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