Air fryer

Abstract

The embodiment of the invention discloses an air fryer which comprises an upper heating cover, a lower heating cover, an air supply device and an air supply device, and the upper heating cover comprises a cover body and a hot air assembly arranged in the cover body; the pot body comprises a cooking cavity, the heating upper cover detachably covers the pot body, the hot air assembly is used for conveying hot air into the cooking cavity, the pot body comprises an inner container, an outer container and a first heat insulation layer, and the first heat insulation layer is formed between the inner container and the outer container.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to an air fryer. Background Art

[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 contains less fat, providing users with a healthier dietary option.

[0003] In order to ensure the safety of air fryers, air fryers in related technologies generally have an additional outer shell on the outside of the pot body, and the outer shell needs to maintain a certain distance from the pot body so that the temperature of the outer shell does not get too high. However, the overall volume of the air fryer becomes larger, occupying more kitchen space, which brings inconvenience to users. Summary of the invention

[0004] The embodiment of the present application discloses an air fryer, in which a heating cover and a pot body are detachably arranged, and both the cover body of the heating cover and the pot body are constructed to include a heat insulation layer with a heat insulation function, so that it is possible to avoid providing another outer shell outside the pot body for temperature insulation, so that the air fryer can be further miniaturized and the occupancy of the kitchen space can be reduced.

[0005] In order to achieve the above-mentioned objectives, an embodiment of the present application discloses an air fryer, comprising: a heating upper cover, the heating upper cover comprising a cover body and a hot air component arranged in the cover body; a pot body, the pot body comprising a cooking cavity, the heating upper cover is detachably covered on the pot body, the hot air component is used to transport hot air into the cooking cavity, the pot body comprises an inner pot, an outer pot and a first insulation layer, the first insulation layer is formed between the inner pot and the outer pot.

[0006] In a possible implementation manner, a heat insulating medium is provided in the first heat insulating layer or the first heat insulating layer is a vacuum layer.

[0007] In a possible implementation, the outer liner is sleeved on the outer side of the inner liner, and the outer liner and the inner liner are sealed and connected, and the first heat insulation layer surrounds the outer peripheral surface of the inner liner; and / or

[0008] The inner liner and the outer liner are an integrated structure.

[0009] In a possible implementation, the distance between the inner pot and the outer pot is L1, wherein 5mm<L1<15mm; and / or the thickness of the pot body is W1, wherein 7mm<W1<20mm.

[0010] In a possible implementation, the inner liner is a light-transmitting inner liner, and the outer liner is a light-transmitting outer liner.

[0011] In some possible implementations, the yield strength of the inner liner and the outer liner is σs1, where σs1≥200Mpa.

[0012] In some possible implementations, the tensile strength of the inner liner and the outer liner is σb1, where σb1≥500Mpa.

[0013] In a possible implementation, the cover body includes an inner cover, an outer cover, and a second heat insulation layer, and the second heat insulation layer is formed between the inner cover and the outer cover.

[0014] In a possible implementation manner, a heat insulating medium is provided in the second heat insulating layer or the second heat insulating layer is a vacuum layer.

[0015] In a possible implementation, the outer cover is sleeved on the outer side of the inner cover, and the outer cover and the inner cover are sealed and connected, and the second insulation layer surrounds the outer circumference of the inner cover; and / or the inner cover and the outer cover are an integrated structure.

[0016] In a possible implementation, the distance between the inner cover and the outer cover is L2, and the distance between the inner liner and the outer liner is L1, wherein L2<L1.

[0017] In a possible implementation, the distance between the inner cover and the outer cover is L2, wherein 3mm<L2<10mm; and / or the thickness of the cover body is W2, wherein 5mm<W2<17mm.

[0018] In a possible implementation, the air fryer further includes: a locking piece rotatably disposed on one of the cover body or the pot body; a matching portion disposed on the other of the cover body or the pot body, the locking piece being capable of being locked or unlocked with the matching portion, and the heating upper cover being detachably connected to the pot body via the locking piece.

[0019] In a possible implementation, the air fryer further includes: a sealing ring, which is disposed on at least one of the heating upper cover or the pot body, and the sealing member is used to seal the gap between the heating upper cover and the pot body.

[0020] In a possible implementation, the air fryer further includes: a baking tray detachably disposed in the cooking cavity, the baking tray being used to place food, and the baking tray being provided with a plurality of ventilation holes.

[0021] In a possible implementation, the volume of the pot body is V1, wherein 3L<V1<18L; and / or the height of the pot body is H1, wherein 100mm<H1<450mm.

[0022] Compared with the prior art, the beneficial effects of this application are:

[0023] Thus, the air fryer provided in the embodiment of the present application has a pan body with a laminated structure design having excellent heat insulation performance, and the laminated structure includes a first heat insulation layer, which reduces the high temperature transmitted to the outer surface of the pan body, thereby reducing the risk of users being scalded when using the air fryer. At the same time, since the pan body has good heat insulation performance, there is no need to set an additional shell on the outside, thus realizing the shell-free design of the air fryer, making the overall volume of the air fryer more compact, saving kitchen space, and meeting the needs of modern families for miniaturization of kitchen appliances. In addition, the pan body of the air fryer provided in the embodiment of the present application can be used alone in other scenarios, enriching the use scenarios of the air fryer.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 One of the structural schematic diagrams of an air fryer provided in an embodiment of the present application;

[0027] Figure 2 The second structural diagram of an air fryer provided in an embodiment of the present application;

[0028] Figure 3 The third structural diagram of an air fryer provided in an embodiment of the present application;

[0029] Figure 4 for Figure 2 Sectional view in the AA direction;

[0030] Figure 5 for Figure 4 Cross-sectional view in the BB direction;

[0031] Figure 6 for Figure 5 The enlarged view of point A in the middle;

[0032] Figure 7 for Figure 5 The enlarged view of point B in the middle;

[0033] Figure 8 A schematic diagram of the explosion structure of an air fryer provided in an embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1- air fryer; 10- heating cover; 101- cover body; 1011- inner cover; 1012- outer cover; 1013- second heat insulation layer; 1015- air inlet; 102- hot air assembly; 1021- heating element; 1022- hot air fan; 103- driving element; 104- control device; 105- reflecting cover; 106- cover plate; 107- heat insulation cover; 108- cold air fan; 109- air outlet grille; 110- containing cavity; 20- pot body; 201- inner pot; 202- outer pot; 203- first heat insulation layer; 204- baking tray; 205- cooking cavity; 30- locking member; 40- mating part; 50- sealing ring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0038] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0039] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0041] The working principle of the air fryer is to use fast-circulating hot air to cook food. The cooking effect is comparable to that of traditional frying, but it can significantly reduce the fat content in the food. This cooking method not only retains the crispy taste of the food, but also greatly reduces the intake of unhealthy fats, providing an ideal dietary choice for consumers who pursue a healthy lifestyle.

[0042] In order to ensure the safety of the air fryer during use, the air fryer technology in the related art generally adopts a shell design. This shell is usually an integrated structure, surrounding the heating component and the frying bucket. The frying bucket can be taken out of the shell, and the shell is kept at a certain distance from the heating component and the frying bucket to prevent the shell from overheating and reduce the risk of burns to the user. This design can improve the safety performance of the air fryer, but it also brings a significant problem: the overall volume of the air fryer is significantly increased, so that the air fryer takes up more kitchen space.

[0043] Based on this, how to further reduce the volume of the air fryer while ensuring the safety of the air fryer has become an urgent problem to be solved in the field of air fryer technology.

[0044] Please refer to Figures 1 to 5 The embodiment of the present 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 arranged on the pot body 20.

[0045] like Figures 1 to 3 As shown, specifically, the heating cover 10 can be detachable from the pot body 20 via a snap assembly, or the heating cover 10 can also be detachably mounted on the pot body 20 via other positioning structures (such as positioning grooves).

[0046] The technical solution that the heating upper cover 10 and the pot body 20 can be separated can make the air fryer 1 have more abundant usage scenarios. For example, the pot body 20 can also be used as a container in other scenes of boiling and scalding ingredients, that is, the pot body 20 can be used as a cooking pot or a hot pot.

[0047] like Figure 4 river Figure 5As shown, the heating upper cover 10 may include a cover body 101 , which is an appearance part of the heating upper cover 10 . The cover body 101 is constructed as a cavity structure having an accommodating cavity, and the cavity structure is used to accommodate working parts of the air fryer 1 .

[0048] Exemplarily, the air fryer 1 further includes working parts that require electrical energy, such as a hot air assembly 102, a control device 104, a power supply device, etc. These working parts can be arranged inside the cover 101, that is, the parts that require electricity can all be integrated into the heating cover 10, thereby improving the integration of the heating cover 10.

[0049] 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 arranged above the pot body 20, and the high-temperature hot air generated by the hot air assembly 102 can be directly and evenly blown into the cooking cavity 205 from the top of the pot body 20, and the hot air can be fully circulated in the pot body 20 to ensure a more balanced temperature distribution in the pot body 20. Compared with the method of blowing high-temperature hot air into the frying barrel from the side in some air fryers in the related art, blowing hot air from the top of the pot body can effectively avoid the problem of local overheating or partial undercooking of food due to concentrated heat energy.

[0050] In addition, the heating cover 10 that can be separated from the pot body 20 allows the air fryer 1 to be replaced with different cooking accessories other than the pot body 20 to meet the user's diverse cooking needs.

[0051] like Figure 4 and Figure 5 As shown, the pot body 20 includes a cooking cavity 205 for placing food. When the heating cover 10 is covered on the pot body 20, the hot air generated by the hot air assembly 102 can be transported to the cooking cavity 205, so that the food is heated by the high-temperature hot air and produces a frying cooking effect.

[0052] In order to improve the safety of the pot body 20, and further make the pot body 20 smaller and thinner. Figure 4 and Figure 5 As shown, the pot body 20 is constructed as a stacked laminated structure, which includes an inner pot 201 and an outer pot 202 stacked together, wherein there is a gap between the inner pot 201 and the outer pot 202, and the gap forms a first heat insulating layer 203 with heat insulating properties.

[0053] Since a first heat insulating layer 203 with heat insulating properties is formed between the inner pot 201 and the outer pot 202, even if the inner pot 201 is exposed to high temperature hot air and has a high temperature, the heat of the inner pot 201 will not be completely transferred to the outer pot 202 due to the spacing of the first heat insulating layer 203. In this way, when the pot body 20 is cooking, the outer pot 202 can also be kept at a relatively low temperature, reducing the risk of the user being scalded by the pot body 20. At the same time, it can also ensure that the heat used to cook the ingredients is retained in the cooking cavity 205 as much as possible to achieve the desired cooking effect.

[0054] It is worth noting that since the pot body 20 has good heat insulation performance, the outside of the pot body 20 does not need to be provided with an additional outer shell like the air fryer in the related art, thereby simplifying the manufacturing process of the air fryer 1 and further reducing the production cost.

[0055] In addition, based on the heat insulation performance of the pot body 20 and the feature that the pot body 20 can be separated from the heating cover 10. When the air fryer 1 finishes cooking, the heating cover 10 can be removed, and the pot body 20 can be used alone as a heat preservation container.

[0056] For example, after the pot body 20 is separated from the heating upper cover 10, it only needs to be sealed with a lid accessory, and the pot body 20 can be converted into a portable insulated lunch box. The user can directly carry the pot body 20 to a picnic or work scene without transferring the ingredients from the pot body 20 to other containers.

[0057] Optionally, the pot body 20 can be made of metal material, that is, the inner pot 201 and the outer pot 202 are both made of metal material, such as stainless steel, aluminum-magnesium alloy, carbon steel and other materials.

[0058] Optionally, the pot body 20 can be made of stainless steel. Since the pot body 20 is in direct contact with the food, the pot body 20 made of stainless steel can make the pot body 20 have good corrosion resistance and safety of direct contact with the food at high temperature. In addition, the outer pot 202 made of stainless steel has wear resistance and high deformation resistance, which can ensure that the first heat insulation layer 203 is not easy to deform.

[0059] Thus, the air fryer 1 provided in the embodiment of the present application, the pot body 20 adopts a laminated structure design with excellent heat insulation performance, and the laminated structure includes a first heat insulation layer 203, which reduces the high temperature transmitted to the outer surface of the pot body 20, reducing the risk of users being scalded when using the air fryer 1. At the same time, since the pot body 20 has good heat insulation performance, there is no need to set a shell on its outside, making the overall volume of the air fryer 1 more compact, saving kitchen space, and meeting the needs of modern families for miniaturization of kitchen appliances. In addition, the air fryer 1 provided in the embodiment of the present application, the pot body 20 can be used alone in other scenarios, enriching the use scenarios of the air fryer 1.

[0060] In some embodiments, Figure 4 and Figure 5 As shown, the outer pot 202 is sleeved on the outside of the inner pot 201, and the outer surface of the outer pot 202 is the appearance surface. The inner pot 201 forms a cooking cavity 205, and the outer pot 202 is sleeved on the entire periphery of the inner pot 201 to ensure that the heat of the inner pot 201 is fully isolated by the first insulation layer 203.

[0061] In some embodiments, a heat insulating medium may be provided in the first heat insulating layer 203 , and the heat insulating medium may be a heat insulating material such as glass fiber, calcium silicate, ceramic fiber, etc.

[0062] In some embodiments, the first heat insulating layer 203 may also be a vacuum layer. Specifically, a certain distance is maintained between the inner liner 201 and the outer liner 202 to form an air layer, and then the ends of the edges of the inner liner 201 and the outer liner 202 are sealed and connected, and a tiny hole for vacuuming is reserved, and when the air layer is in a vacuum state, it is completely sealed, and the first heat insulating layer 203 becomes a vacuum layer.

[0063] In some embodiments, the inner pot 201 and the outer pot 202 may be an integrated structure. The integrated structure of the inner and outer pots 202 can avoid gaps at the connection between the two and cause heat leakage, thereby further improving the heat insulation performance of the pot body 20 and making the pot body 20 safer.

[0064] In some embodiments, the distance between the inner liner 201 and the outer liner 202 is L1, wherein L1 is less than 15 mm.

[0065] L1<15mm can make the first insulation layer 203 between the inner pot 201 and the outer pot 202 sufficiently compact while providing effective insulation. If L1>15mm, the pot body 20 may be unnecessarily thickened, resulting in the pot body 20 not being thin and compact enough. The spacing design of L1<15mm not only takes into account the insulation performance of the pot body 20, but also avoids the volume expansion of the pot body 20 caused by the first insulation layer 203 occupying too much space, thereby maintaining the overall compactness of the air fryer 1.

[0066] In some embodiments, Figure 5 and Figure 6 As shown, the distance between the inner liner 201 and the outer liner 202 is L1, wherein L1>5mm.

[0067] The spacing design of L1>5mm ensures that there is enough space between the inner pot 201 and the outer pot 202 to form an effective first heat insulation layer 203, thereby ensuring the effectiveness of the first heat insulation layer 203. Since the pot body 20 needs to be subjected to the heat radiation of hot air for a long time, if L1<5mm, the first heat insulation layer 203 may have insufficient heat insulation performance due to too small a spacing. At the same time, the first heat insulation layer 203 having a certain spacing also makes it easier to fill the first heat insulation layer 203 with an appropriate amount of heat insulation medium, such as glass fiber, calcium silicate, ceramic fiber, etc., thereby simplifying the processing technology of the pot body 20.

[0068] Specifically, L1 can be 5.5 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm or 14 mm, so as to take into account both the heat insulation performance and the compact design of the pot body 20.

[0069] In some embodiments, Figure 5 and Figure 6 As shown, the thickness W1 of the pot body 20 can be understood as the overall thickness of the inner pot 201 , the outer pot 202 and the first heat insulation layer 203 which are stacked.

[0070] W1<20mm, which can make the pot body 20 thinner and lighter, and make the volume of the pot body 20 more miniaturized and compact, so that it is easy to carry, and the pot body 20 can be carried to various usage scenarios as a container for food.

[0071] W1>7mm, which ensures that the pot body 20 has sufficient thickness, the first heat insulation layer 203 has a certain thickness and good heat insulation performance, and the inner pot 201 and the outer pot 202 have a certain thickness and are impact resistant. In addition, 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 can also prevent the pot body 20 from being deformed due to bumps during carrying. If W1<7mm, the strength of the outer pot 202 may be insufficient, so that the first heat insulation layer 203 cannot maintain its original thickness, which affects the heat insulation performance of the pot body 20.

[0072] Specifically, W1 can be 7.5mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm or 19mm, so as to take into account the thermal insulation performance, compact design and structural strength of the pot body 20.

[0073] In some embodiments, the inner pot 201 is a light-transmitting inner pot 201, and the outer pot 202 is a light-transmitting outer pot 202, so that the user can timely understand the cooking state of the ingredients in the cooking cavity. During the cooking process, the user can adjust the cooking process at any time according to the observed changes in the state of the ingredients.

[0074] Specifically, in this embodiment, the inner liner 201 and the outer liner 202 can be made of glass material.

[0075] In some embodiments, the yield strength of the inner liner 201 and the outer liner 202 is σs1, where σs1 ≥ 200 MPa.

[0076] σs1≥200Mpa, which ensures that the inner pot 201 and the outer pot 202 have sufficient mechanical strength to withstand the external impact and internal pressure that the pot body 20 may encounter during use, ensuring the safety of the user during use. This yield strength also helps the inner pot 201 and the outer pot 202 maintain their shape and function during long-term use and are not easily deformed.

[0077] Specifically, the yield strength σs1 of the inner pot 201 and the outer pot 202 can be 200 MPa, 300 MPa, 400 MPa or 500 MPa to ensure that the inner pot 201 and the outer pot 202 can withstand certain pressure and temperature changes during the cooking process while maintaining structural stability and safety.

[0078] In some embodiments, the tensile strength of the inner liner 201 and the outer liner 202 is σb1, where σb1 ≥ 500 MPa.

[0079] σb1≥500Mpa, which can make the inner pot 201 and the outer pot 202 have sufficient mechanical bearing capacity to resist the falling and stretching that the pot body 20 may encounter during the cooking process, ensuring the structural stability of the air fryer and the safety of users. At the same time, the tensile strength of more than 500Mpa also helps the inner pot 201 and the outer pot 202 maintain their shape and function in long-term high-frequency use, avoiding unnecessary deformation.

[0080] Specifically, the tensile strength σb1 of the inner pot 201 and the outer pot 202 can be 500Mpa, 510Mpa, 520Mpa, 530Mpa, 540Mpa, 550Mpa, 560Mpa, 570Mpa, 580Mpa, 590Mpa or 600 to ensure that the inner pot 201 and the outer pot 202 can withstand certain pressure and temperature changes during the cooking process while maintaining the stability and safety of the pot body 20 structure.

[0081] In some embodiments, Figures 1 to 3As shown, the pot body 20 can be constructed as a cube or a rectangular parallelepiped structure. In this way, the structure of the pot body 20 can be more stable and also more convenient to carry and store.

[0082] In some embodiments, the volume of the pot body 20 is V1, wherein 3L<V1<18L.

[0083] V1<18L can make the pot body 20 have a sufficiently large volume to cook larger volume of food, meet the use needs of ordinary families, and ensure the overall miniaturization of the air fryer 1.

[0084] V1>3L, the pot body 20 can have sufficient capacity to meet the needs of a family with a small number of people. At the same time, since the overall thickness of the pot body 20 and the overall thickness of the first heat insulation layer 203 are limited in the above embodiment, it can be ensured that the pot body 20 has a large volume while having a small volume, thereby realizing the miniaturization design of the pot body 20 and meeting the cooking needs of users.

[0085] Specifically, the volume V1 of the pot body 20 may be 5L, 8L, 10L, 10.5L, 11L, 13L or 17.5L.

[0086] In some embodiments, Figure 2 As shown, the height of the pot body 20 is H1, wherein 100 mm

[0087] H1<450mm, which can ensure that the heat transfer path of the hot air is shorter, achieve a faster heating speed, and improve the cooking efficiency of the air fryer 1.

[0088] H1>100mm, can ensure that hot air can fully circulate in the cooking cavity 205, make hot air form more uniform heat distribution in the cooking cavity 205, help to prevent local burning or partial uncooking of food.

[0089] Specifically, the height of the pot body 20 can be 110 mm, 160 mm, 210 mm, 260 mm, 310 mm, 360 mm, 410 mm or 440 mm.

[0090] At the same time, the height limit of the pot body 20 combined with the volume limit of the pot body 20 allows the pot to provide sufficient cooking space while maintaining a compact size, which is suitable for daily quick cooking and can meet the needs of family gatherings.

[0091] Since the hot air assembly 102 releases a large amount of heat energy during operation, the heat energy will be radiated to the cover 101, thereby causing the temperature of the cover 101 to rise and causing safety hazards. Figure 4 and​ Figure 5 As shown, in order to improve the thermal insulation performance of the cover body 101, the cover body 101 of the heating upper cover 10 in the embodiment of the present application is constructed as a laminated structure, which includes an inner cover 1011 and an outer cover 1012 that are stacked, wherein there is a gap between the inner cover 1011 and the outer cover 1012, and the gap is the second thermal insulation layer 1013 with thermal insulation performance.

[0092] Optionally, the inner cover 1011 and the outer cover 1012 may be made of stainless steel or high temperature resistant plastic.

[0093] Since a second thermal insulation layer 1013 with thermal insulation performance is formed between the inner cover 1011 and the outer cover 1012, even if the inner cover 1011 is close to the hot air component 102 and has a higher temperature under the heat radiation of the hot air component 102, due to the spacing of the second thermal insulation layer 1013, the heat of the inner cover 1011 will not be completely transferred to the outer cover 1012. In this way, the outer surface of the cover body 101 can be maintained at a relatively low temperature when the hot air component 102 is working, reducing the risk of users being scalded by the cover body 101.

[0094] It is worth noting that the cover body 101 provided in the embodiment of the present application has good heat insulation performance, so the distance between the hot air component 102 and the cover body 101 can be further reduced. It is not necessary to maintain a certain heat insulation distance from the hot air component like the outer shell in the air fryer in the related art, thereby making the overall structure of the heating cover 10 more compact and the air fryer 1 can be further miniaturized.

[0095] It can be understood that since the cover body 101 and the pot body 20 both have good heat insulation properties, the air fryer 1 provided in the embodiment of the present application can completely eliminate the outer shell of the air fryer in the related art, making the volume of the air fryer 1 more compact, and the air fryer 1 as a whole can be designed without an outer shell, and the processing technology is further simplified.

[0096] In some embodiments, Figure 4 and Figure 5 As shown, the outer cover 1012 is sleeved on the outside of the inner cover 1011, and the outer surface of the outer cover 1012 is the appearance surface. The inner cover 1011 forms a receiving cavity 110 for accommodating working components, and the outer cover 1012 is sleeved on the entire periphery of the inner cover 1011 to ensure that the heat of the inner cover 1011 is fully isolated by the second insulation layer 1013.

[0097] In some embodiments, a heat insulating medium may be provided in the second heat insulating layer 1013 , and the heat insulating medium may be a heat insulating material such as glass fiber, calcium silicate, ceramic fiber, etc.

[0098] In some embodiments, a vacuum layer may also be formed inside the second heat insulating layer 1013. Specifically, a certain distance is maintained between the inner cover 1011 and the outer cover 1012 to form an air layer, and then the ends of the edges of the inner cover 1011 and the outer cover 1012 are sealed and connected, and a tiny hole for vacuuming is reserved, and when the air layer is in a vacuum state, it is completely sealed, and the second heat insulating layer 1013 becomes a vacuum layer.

[0099] In some embodiments, the inner cover 1011 and the outer cover 1012 may be an integrated structure. The integrated structure of the inner and outer covers 1012 may reduce the gap between the two and prevent heat from escaping through the gap, thereby improving the thermal insulation performance of the cover body 101.

[0100] In some embodiments, Figure 6 and Figure 7 As shown, the distance between the inner cover 1011 and the outer cover 1012 is L2, and the distance between the inner liner 201 and the outer liner 202 is L1, wherein L2<L1.

[0101] It is worth noting that since the heat energy generated by the heating element 1021 is continuously blown into the pot body 20, the heat radiation borne by the cover body 101 is lower than the heat radiation borne by the pot body 20. Therefore, the thickness L2 of the second insulation layer 1013 can be smaller than the thickness L1 of the first insulation layer 203, so that the thickness of the cover body 101 can be further reduced, thereby having more space to set the working parts of the air fryer 1.

[0102] In some embodiments, Figure 5 and Figure 7 As shown, the distance between the inner cover 1011 and the outer cover 1012 is L2, where L2 is less than 10 mm.

[0103] L2 < 10 mm can make the second heat insulation layer 1013 between the inner cover 1011 and the outer cover 1012 sufficiently compact while providing effective heat insulation. Such a spacing design not only takes into account the heat insulation performance, but also avoids the volume expansion of the cover body 101 caused by the excessive spacing of the second heat insulation layer 1013, thereby maintaining the overall compactness of the air fryer 1.

[0104] In some embodiments, Figure 5 and Figure 7 As shown, the distance between the inner cover 1011 and the outer cover 1012 is L2, where L2>3mm.

[0105] The spacing design of L2>3mm ensures that there is enough space between the inner cover 1011 and the outer cover 1012 to form an effective second insulation layer 1013, avoiding the situation that too small a spacing may lead to insufficient insulation performance of the cover body 101. At the same time, it is more convenient to fill the second insulation layer 1013 with an appropriate amount of insulation medium, such as glass fiber, calcium silicate, ceramic fiber, etc., so as to further improve the processing efficiency of the cover body 101.

[0106] Specifically, L2 can be 3.5 mm, 5 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm or 9 mm, so as to take into account both the heat insulation performance and the compact design of the cover 101.

[0107] In some embodiments, the thickness W2 of the cover body 101 can be understood as the thickness of the laminated structure, that is, the overall thickness of the inner cover 1011 , the outer cover 1012 and the second insulation layer 1013 .

[0108] W2 is less than 17 mm, so that the cover 101 is thinner and lighter, so that the cover 101 has more space for arranging the working parts of the air fryer 1, and the overall size of the heating cover 10 is further miniaturized.

[0109] W2>5mm ensures that the cover 101 has sufficient thickness to set the second heat insulation layer 1013 and has good heat insulation performance. In addition, W2>5mm can make the inner cover 1011 and the outer cover 1012 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.

[0110] Specifically, W2 can be 5.5 mm, 7 mm, 10 mm, 13 mm, 14 mm, 15 mm, 16 mm or 16.5 mm, so as to take into account both the heat insulation performance and the compact design of the cover 101.

[0111] In some embodiments, the yield strength of the first cover body 1011 and the second cover body 1012 is σs2, where σs2≥200 MPa.

[0112] σs2≥200Mpa, which ensures that the first cover 1011 and the second cover 1012 have sufficient mechanical strength to withstand the external impact and internal pressure that the cover 101 may encounter during use, thereby ensuring the safety of the user during use. This yield strength also helps the first cover 1011 and the second cover 1012 maintain their shape and function during long-term use and are not easily deformed.

[0113] Specifically, the yield strength σs2 of the first cover body 1011 and the second cover body 1012 can be 200 MPa, 300 MPa, 400 MPa or 500 MPa to ensure that the first cover body 1011 and the second cover body 1012 can withstand certain pressure and temperature changes during the cooking process while maintaining structural stability and safety.

[0114] In some embodiments, the tensile strength of the first cover body 1011 and the second cover body 1012 is σb2, where σb2 ≥ 500 MPa.

[0115] σb2≥500Mpa, which can make the first cover 1011 and the second cover 1012 have sufficient mechanical bearing capacity to resist the fall and stretching that the cover 101 may encounter during the cooking process, thereby ensuring the structural stability of the air fryer and the safety of the user. At the same time, the tensile strength of more than 500Mpa also helps the first cover 1011 and the second cover 1012 maintain their shape and function during long-term and high-frequency use, avoiding unnecessary deformation.

[0116] Specifically, the tensile strength σb1 of the first cover 1011 and the second cover 1012 can be 500Mpa, 510Mpa, 520Mpa, 530Mpa, 540Mpa, 550Mpa, 560Mpa, 570Mpa, 580Mpa, 590Mpa or 600Mpa to ensure that the first cover 1011 and the second cover 1012 can withstand certain pressure and temperature changes during the cooking process while maintaining the stability and safety of the cover 101 structure. In some embodiments, as Figures 1 to 5 As shown, the air fryer 1 further includes a locking member 30 and a matching portion 40. The locking member 30 is rotatably disposed on one of the cover 101 or the pot body 20, and the matching portion 40 can be formed on the other of the cover 101 or the pot body 20.

[0117] When the heating cover 10 needs to be installed on the pot body 20 , or when the heating cover 10 needs to be removed from the pot body 20 , the user can press the locking member 30 to lock or separate the locking member 30 from the pot body 20 .

[0118] Optionally, the matching portion 40 is a groove structure provided on the cover body 101 or the pot body 20 .

[0119] In some embodiments, Figure 4 and Figure 5 As shown, the air fryer 1 further includes a sealing ring 50 .

[0120] Optionally, the sealing ring 50 can be provided on the heating cover 10 and correspond to the edge of the pot body 20. When the heating cover 10 is covered 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 from the gap between the pot body 20 and the heating cover 10 and reducing cooking efficiency.

[0121] Optionally, the sealing ring 50 can be arranged at the edge of the pot body 20. When the heating cover 10 is covered 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 from the gap between the pot body 20 and the heating cover 10 and reducing cooking efficiency.

[0122] In some embodiments, Figure 5 As shown, the cover body 101 is formed with a receiving cavity 110. When the heating upper cover 10 is covered on the pot body 20, the receiving cavity 110 is communicated with the cooking cavity 205, so that high-temperature hot air enters the cooking cavity 205 to cook food.

[0123] In some embodiments, Figure 4 , Figure 5 As shown, the heating cover 10 includes a hot air assembly 102. Figure 4 , Figure 5 and Figure 8 As shown, the hot air assembly 102 may include a heating element 1021 and a hot air fan 1022. In 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 through the airflow generated by the hot air fan 1022, which helps to evenly cook the food.

[0124] Optionally, the heating element 1021 may be a heat pipe, a microwave heating element 1021 or an infrared heating element 1021 or the like.

[0125] Optionally, the heating element 1021 may be a quartz glass heating tube. The power of the heating element 1021 may be 800W.

[0126] Optionally, the hot air fan 1022 may be a cross-flow plastic centrifugal impeller. The diameter of the hot air fan 1022 may be between 90 mm and 100 mm.

[0127] In some embodiments, Figure 4 , Figure 5 and Figure 8 As shown, the heating upper cover 10 may include a driving member 103. The output end of the driving member 103 is connected to the hot air fan 1022. In order to reduce the overall height of the air fryer 1. The driving member 103 may be an ultra-thin driving member 103, and the hot air fan 1022 may be an ultra-thin fan, so as to reduce the space occupied by the hot air component 102 in the accommodating chamber 110 in the height direction.

[0128] Optionally, the driving member 103 may be a 57 stepping motor. The rated voltage of the driving member 103 is 24V, and the phase current is 1.7A.

[0129] In some embodiments, the heating upper cover 10 further includes a control device 104. The control device 104 may include: an operation panel and a processor, etc.

[0130] The operation panel can receive a preset cooking mode or a custom cooking parameter, such as temperature and time, set by the user through touch operation. Optionally, the operation panel can include an OLED display, a knob switch, a button switch, and the like.

[0131] The processor, as a 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 component 102 according to a preset algorithm to achieve the best cooking effect.

[0132] The control device 104 may further include a circuit board, and the circuit board may include an L298N dual-channel driver chip.

[0133] In addition, the control device 104 can also be connected to the user's mobile phone via Wi-Fi or Bluetooth, so that the user can remotely control the air fryer 1, check the cooking progress, etc. through the mobile phone.

[0134] In some embodiments, the heating upper cover 10 further includes a power supply device, which may include a power board, which is used to connect a power source and electrical components such as the control device 104 and the driving member 103 .

[0135] Optionally, the power supply device adopts an AC-DC switching power supply module, and the power supply device can input 220V AC voltage and output 24V DC voltage.

[0136] The hot air assembly 102, the driving member 103, the control device 104 and the power supply device are all arranged in the accommodating cavity 110 in the cover body 101, so that the electrical components can be integrated into the heating upper cover 10, and no electrical components are arranged on the pot body 20, so that the pot body 20 can be cleaned separately and is convenient to be used separately as an ordinary pot or carried as a lunch box.

[0137] In some embodiments, Figure 4 and Figure 5 As shown, the heating upper cover 10 further includes a reflector 105. The reflector 105 is constructed as a cover body, and the reflector 105 can be clamped, fastened and connected to the cover body 101, and cover the opening of the cover body 101. The reflector 105 can separate the accommodating chamber 110 into a hot air chamber and a heat dissipation chamber.

[0138] The heating element 1021 and the hot air fan 1022 are located in the hot air chamber. The driving element 103, the control device 104 and the power supply device can be located in the heat dissipation chamber.

[0139] Optionally, the reflector 105 can be made of a galvanized sheet. The thickness of the reflector 105 can be between 0.3 mm and 0.5 mm.

[0140] The reflector 105 can effectively reflect the heat generated by the heating element 1021 into the accommodating cavity 110 in the pot body 20, so that the food in the accommodating cavity 110 is heated more evenly, the cooking efficiency is improved, and the cooking time is shortened. The reflector 105 can also isolate the driving element 103, the control device 104, and the power supply device from the heating element 1021, so as to prevent the high temperature generated by the heating element 1021 from being excessively radiated to the driving element 103, the control device 104, and the power supply device during the cooking process, thereby affecting the working performance and service life of the driving element 103, the control device 104, and the power supply device.

[0141] In some embodiments, a hollow portion is disposed on the top of the cover body 101. The hollow portion is a notch formed on the cover body 101.

[0142] In some embodiments, Figure 1 , Figure 4 , Figure 5 and Figure 8 As shown, the heating upper cover 10 may further include a cover plate 106. The cover plate 106 is disposed in the hollow portion and connected to the cover body 101, and a gap is provided between the edge of the cover plate 106 and the inner wall of the hollow portion to form an air inlet 1015, which is communicated with the heat dissipation cavity.

[0143] The cover plate 106 is arranged in the hollow portion, and there is a gap between the cover plate 106 and the edge of the hollow portion formed with the cover body 101, and the gap forms an annular air inlet 1015. The annular air inlet 1015 is connected to the heat dissipation cavity, so that cold air can effectively enter the heat dissipation cavity and reduce the temperature in the heat dissipation cavity, thereby effectively preventing the driving component 103, the control device 104 and the power supply device from being damaged due to high temperature.

[0144] It should be noted that by reasonably setting the size of the above-mentioned gap, the air flow entering the heat dissipation cavity can be controlled to obtain the expected heat dissipation effect, and at the same time, it can also prevent foreign matter from entering the heat dissipation cavity due to the air inlet 1015 being too large.

[0145] In some embodiments, the heating upper cover 10 may further include a cold air fan 108. The driving member 103 is not only connected to the hot air fan 1022, but also connected to the cold air fan 108. The driving member 103 may simultaneously drive the hot air fan 1022 and the cold air fan 108 to rotate.

[0146] In some embodiments, Figure 4 , Figure 5 and Figure 8 As shown, the heating upper cover 10 may further include a heat insulating cover 107. The heat insulating cover 107 is disposed on the reflective cover 105 and is located in the heat dissipation cavity.

[0147] The heat shield 107 is constructed as a shield and is disposed in the cover 101. The heat shield 107 is disposed on the reflective cover 105 and is located in the heat dissipation cavity, and the cold air fan 108 and the driving member 103 are located in the space formed between the reflective cover 105 and the heat shield 107. The heat shield 107 isolates the hot air component 102 from the housing to reduce the heat energy generated by the hot air component 102 from being radiated to the cover 101.

[0148] Optionally, the heat insulating cover 107 can be made of a material with heat insulating properties, such as asbestos or ceramic material. The heat insulating cover 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 heating the upper cover 10, and reduce the surface temperature of the cover 101, thereby improving the safety of the air fryer 1 during use.

[0149] Since the heat insulation cover 107 is provided with a through hole, the space between the heat insulation cover 107 and the cover body 101, and the space between the heat insulation cover 107 and the reflective cover 105 are connected to form a heat dissipation cavity connected to the outside. When the driving member 103 drives the cold air 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 body 101 through the heat dissipation cavity.

[0150] In some embodiments, Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8 As shown, the heating upper cover 10 further includes an air outlet grille 109. The air outlet grille 109 is disposed on the cover body 101, the air outlet grille 109 is communicated with the heat dissipation cavity, and the air outlet grille 109 has a plurality of air outlets.

[0151] The flow path of the cold air entering from the air inlet 1015 is as follows: when the driving member 103 drives the cold air fan 108 to rotate, a negative pressure is formed in the heat insulation cover 107, and the cold air enters the inside of the cover body 101 from the air inlet 1015, blows through the control device 104 and the power supply device, so as to cool down the control device 104 and the power supply device. Then, based on the disturbance of the air flow by the cold air fan 108, the cold air continues to flow into the inside of the heat insulation cover 107, and the cold air exchanges heat with the driving member 103 before flowing out of the air outlet.

[0152] In some embodiments, the heat shield 107 includes an opening, and the opening faces the cover 101 . At least a portion of the air outlet grille 109 extends into the cover 101 , and the air outlet grille 109 is connected to the opening of the heat shield 107 .

[0153] The heat insulation cover 107 may have an open opening toward the air outlet, and the air outlet grille 109 arranged on the cover body 101 may correspond to the opening and extend into the heat dissipation cavity, so that the air outlet grille 109 is connected to the internal space of the heat insulation cover 107, and the two can support each other in structure to ensure that the heat insulation cover 107 and the air outlet grille 109 are stably arranged on the cover body 101.

[0154] In some embodiments, Figure 4 and Figure 5 As shown, the air fryer 1 further includes a baking tray 204. The baking tray 204 is detachably disposed in the cooking cavity 205.

[0155] The baking tray 204 is used to place food, and a vent is provided on the baking tray 204, which is used to allow hot air to pass through the baking tray 204 to ensure that the top and bottom of the food can be fully and evenly cooked. At the same time, the baking tray is arranged in the cooking cavity 205 to prevent the food from directly contacting the pot body 20 and causing adhesion to the pot body 20.

[0156] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An air fryer, characterized in that: include: A heating upper cover, the heating upper cover comprising a cover body and a hot air component arranged in the cover body; The pot body comprises a cooking cavity, the heating upper cover is detachably covered on the pot body, the hot air assembly is used to transport hot air into the cooking cavity, the pot body comprises an inner pot, an outer pot and a first insulation layer, and the first insulation layer is formed between the inner pot and the outer pot.

2. The air fryer according to claim 1, characterized in that: A heat insulating medium is arranged in the first heat insulating layer or the first heat insulating layer is a vacuum layer.

3. The air fryer according to claim 1, characterized in that: The outer liner is sleeved on the outer side of the inner liner, and the outer liner and the inner liner are sealed and connected, and the first heat insulation layer surrounds the outer peripheral surface of the inner liner; and / or The inner liner and the outer liner are an integrated structure.

4. The air fryer according to claim 1, characterized in that: The distance between the inner liner and the outer liner is L1, wherein 5mm<L1<15mm; and / or The thickness of the pot body is W1, wherein 7mm<W1<20mm.

5. The air fryer according to claim 1, characterized in that: The yield strength of the inner liner and the outer liner is σs1, wherein σs1≥200Mpa; and / or The tensile strength of the inner liner and the outer liner is σb1, wherein σb1≥500Mpa.

6. The air fryer according to claim 1, characterized in that: The air fryer also includes: A baking tray is detachably arranged in the cooking cavity, the baking tray is used to place food materials, and a plurality of ventilation holes are arranged on the baking tray.

7. The air fryer according to claim, characterized in that: The volume of the pot is V1, wherein 3L<V1<18L; and / or The height of the pot body is H1, wherein 100 mm<H1<450 mm.

8. The air fryer according to claim 1, characterized in that: The inner liner is a light-transmitting inner liner, and the outer liner is a light-transmitting outer liner.

9. The air fryer according to any one of claims 1 to 8, characterized in that: The cover body includes an inner cover, an outer cover, and a second heat insulation layer, wherein the second heat insulation layer is formed between the inner cover and the outer cover.

10. The air fryer according to claim 9, characterized in that: A heat insulating medium is arranged in the second heat insulating layer or the second heat insulating layer is a vacuum layer.

11. The air fryer according to claim 9, characterized in that: The distance between the inner cover and the outer cover is L2, and the distance between the inner liner and the outer liner is L1, wherein L2<L1.

12. The air fryer according to any one of claims 1 to 8, characterized in that: The air fryer also includes: A locking member rotatably disposed on one of the cover body or the pot body; The matching part is arranged on the other one of the cover body or the pot body, and the locking piece can be locked or unlocked with the matching part, and the heating upper cover is detachably connected to the pot body through the locking piece.

13. The air fryer according to any one of claims 1 to 8, characterized in that: The air fryer also includes: A sealing ring is arranged on at least one of the heating cover or the pot body, and the sealing member is used to seal the gap between the heating cover and the pot body.

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