Air fryer

Abstract

The utility model discloses an air fryer, which comprises a shell, a bottom plate, a furnace chamber surrounding edge and a heat insulation layer structure, and is characterized in that the bottom plate is arranged at the bottom of the inner side of the shell; the oven cavity surrounding edge is connected with the bottom plate, and a cooking chamber is defined by the oven cavity surrounding edge and the bottom plate; and the heat insulation layer structure is arranged in the shell, the heat insulation layer structure is arranged on the outer side of the cooking chamber, and an air channel is formed between the heat insulation layer structure and the outer side of the cooking chamber. The heat insulation layer structure is arranged between the oven cavity surrounding edge and the shell, and the air channel is formed between the shell and the heat insulation layer structure, so that when airflow passes through the air channel, the heat insulation layer structure can effectively prevent heat dissipation of the oven cavity surrounding edge by the airflow from being reduced, and the heating temperature in the cooking chamber is further guaranteed; therefore, the cooking effect of food in the fryer barrel is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of air fryers. Background Art

[0002] An air fryer is a kitchen appliance that uses an air heating component and the hot air circulation airflow generated thereby to bake food.

[0003] In related technologies, the housing of an air fryer is usually divided into an outer housing and an inner housing. The inner housing is disposed at intervals inside the outer housing, and an airflow channel for airflow to pass through is formed therebetween. The frying basket of the air fryer is usually placed in the cooking chamber of the inner housing, and the food in the frying basket is heated by high-temperature airflow.

[0004] Among them, the housing of the air fryer is provided with an inner and outer shell. When the air fryer is in use, the airflow in the external environment flows through the airflow channel between the inner and outer shells after entering the housing, so as to timely take out the heat between the two, preventing the outer housing from being heated and scalding the user.

[0005] However, when the airflow passes through the airflow channel, the airflow will cool the inner housing, which may lead to insufficient heat in the cooking chamber and affect the cooking effect of the food. Summary of the Utility Model

[0006] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides an air fryer, which can ensure the cooking effect of the food in the frying basket.

[0007] An embodiment of the present application provides an air fryer, including

[0008] A housing;

[0009] A bottom plate, which is disposed at the bottom inside the housing;

[0010] A furnace cavity perimeter, which is connected to the bottom plate, and the furnace cavity perimeter and the bottom plate enclose a cooking chamber;

[0011] A heat insulation layer structure disposed inside the housing, the heat insulation layer structure is disposed outside the cooking chamber, and an air channel is formed between the heat insulation layer structure and the housing.

[0012] According to some embodiments of the utility model, the heat insulation layer structure includes a perimeter heat insulation layer disposed inside the housing, the perimeter heat insulation layer is disposed outside the furnace cavity perimeter, and a first air channel is formed between the housing and the perimeter heat insulation layer.

[0013] According to some embodiments of the utility model, the perimeter heat insulation layer and the furnace cavity perimeter form a first heat preservation cavity.

[0014] According to some embodiments of the present utility model, the peripheral heat insulation layer is provided with ventilation openings.

[0015] According to some embodiments of the present utility model, the ventilation openings are communicated with the first air passage.

[0016] According to some embodiments of the present utility model, the ventilation openings are arranged at the top of the peripheral heat insulation layer.

[0017] According to some embodiments of the present utility model, the peripheral heat insulation layer is U-shaped.

[0018] According to some embodiments of the present utility model, the peripheral heat insulation layer is made of metal.

[0019] According to some embodiments of the present utility model, the housing is provided with heat dissipation openings in the first air passage.

[0020] According to some embodiments of the present utility model, the heat insulation layer structure includes a bottom heat insulation layer, the bottom heat insulation layer is arranged between the bottom plate and the bottom of the housing, and a second air passage is formed between the bottom of the housing and the bottom heat insulation layer.

[0021] According to some embodiments of the present utility model, the bottom heat insulation layer and the bottom plate form a second heat preservation cavity.

[0022] According to some embodiments of the present utility model, the bottom heat insulation layer and the bottom plate have the same projected area.

[0023] According to some embodiments of the present utility model, the bottom of the housing is provided with a first air inlet, and the projected area of the bottom heat insulation layer is larger than the projected area of the first air inlet.

[0024] According to some embodiments of the present utility model, the bottom heat insulation layer is made of metal.

[0025] According to some embodiments of the present utility model, it includes:

[0026] A frying barrel heat insulation plate, the frying barrel heat insulation plate closes the opening of the cooking chamber;

[0027] A frying barrel panel, the frying barrel panel is arranged on the side of the frying barrel heat insulation plate away from the cooking chamber;

[0028] The heat insulation layer structure includes a frying barrel heat insulation layer, the frying barrel heat insulation layer is arranged between the frying barrel heat insulation plate and the frying barrel panel, and a third air passage is formed between the frying barrel heat insulation layer and the frying barrel panel.

[0029] According to some embodiments of the present utility model, the frying barrel heat insulation plate and the frying barrel heat insulation layer form a third heat preservation cavity.

[0030] According to some embodiments of the present utility model, the heat insulation layer of the frying barrel is made of metal material.

[0031] According to some embodiments of the present utility model, the end of the heat insulation layer of the frying barrel has a radian.

[0032] According to some embodiments of the present utility model, the outer shell is provided with a pick-up and placement opening, the surrounding edge heat insulation layer is arranged in a U shape, and both ends of the surrounding edge heat insulation layer respectively extend to the edge parts of the pick-up and placement opening.

[0033] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0034] 1. The heat insulation layer structure effectively reduces the heat radiation in the cooking chamber to the outer shell, thereby preventing the outer shell from scalding users due to excessive temperature. At the same time, the heat insulation layer structure is wrapped on the outside of the furnace cavity surrounding edge, and the heat insulation layer structure has a heat preservation effect on the cooking chamber. In this way, it is ensured that there is a sufficiently high heating temperature in the cooking chamber, thereby ensuring the cooking effect of the food in the frying barrel.

[0035] 2. The heat insulation layer structure is arranged between the furnace cavity surrounding edge and the outer shell, and the air channel is formed between the outer shell and the heat insulation layer structure. With this setting, when the air flow passes through the air channel, the heat insulation layer structure can effectively prevent and reduce the heat dissipation of the air flow to the furnace cavity surrounding edge, thereby further ensuring the heating temperature in the cooking chamber to ensure the cooking effect of the food in the frying barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is an exploded structural schematic diagram of an air fryer according to an embodiment of the present utility model;

[0037] Figure 2 is a longitudinal sectional structural schematic diagram of an air fryer according to an embodiment of the present utility model;

[0038] Figure 3 is another longitudinal sectional structural schematic diagram of an air fryer according to an embodiment of the present utility model;

[0039] Figure 4 is an exploded structural schematic diagram of a driving member, a heat dissipation fan blade and a heating fan blade of an air fryer according to an embodiment of the present utility model;

[0040] Figure 5 is a structural schematic diagram of a driving member, a heat dissipation fan blade and a heating fan blade of an air fryer according to an embodiment of the present utility model;

[0041] Figure 6 is a schematic diagram of a back structure of an air fryer according to an embodiment of the present utility model;

[0042] Figure 7Another schematic diagram of the back structure of the air fryer according to an embodiment of the present utility model;

[0043] Figure 8 An exploded schematic diagram of the frying pan barrel according to an embodiment of the present utility model.

[0044] Among them, the meanings of the reference numerals are as follows:

[0045] 100, housing; 110, housing body; 111, access opening; 112, first air outlet; 113, second air inlet; 114, heat dissipation opening; 120, bottom cover; 121, first air inlet; 130, top cover; 140, second air passage; 150, first air passage; 160, top heat dissipation cavity; 200, furnace cavity housing; 210, bottom plate; 220, furnace cavity perimeter; 230, cooking chamber; 231, placement opening; 300, burner assembly; 310, cover assembly; 311, first cover; 312, second cover; 3121, air inlet; 313, accommodation cavity; 314, air guiding passage; 315, bracket; 320, driving member; 330, heat dissipation fan blade; 340, heating fan blade; 350, heating member; 400, perimeter heat insulation layer; 410, ventilation opening; 500, bottom heat insulation layer; 600, air outlet net; 700, frying pan barrel; 710, barrel body; 720, frying barrel heat insulation plate; 730, frying barrel panel; 740, frying barrel heat insulation layer; 750, third air passage; 760, handle. Detailed implementation manners

[0046] For better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0047] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0049] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0050] Please refer toFigures 1 to 2 , An air fryer, comprising a housing 100, a bottom plate 210, a cooking chamber surround 220 and a heat insulation layer structure. Among them, the bottom plate 210 is arranged at the bottom inside the housing 100; the cooking chamber surround 220 is connected to the bottom plate 210, and the cooking chamber surround 220 and the bottom plate 210 enclose a cooking chamber 230; a heat insulation layer structure arranged inside the housing 100, the heat insulation layer structure is arranged outside the cooking chamber 230, and an air channel is formed between the heat insulation layer structure and the housing 100. Among them, the air channel includes any one or any combination of the following first air channel 150, second air channel 140 and third air channel 750.

[0051] In this application, a heat insulation layer structure is added between the outside of the cooking chamber 230 and the housing 100, and an air channel is formed between the outside of the heat insulation layer structure and the housing 100. In this way, when the air flow passes through the air channel, it cools both the heat insulation layer structure and the housing 100 at the same time.

[0052] As can be seen from the above, the heat insulation layer structure effectively reduces the heat radiation in the cooking chamber 230 to the housing 100, thereby preventing the housing 100 from scalding users due to excessive temperature. At the same time, the heat insulation layer structure is wrapped around the outside of the cooking chamber surround 220, and the heat insulation layer structure has a heat preservation effect on the cooking chamber 230. In this way, it is ensured that there is a high enough heating temperature in the cooking chamber 230, thereby ensuring the cooking effect of the food in the fryer basket 700.

[0053] In addition, the heat insulation layer structure is arranged between the cooking chamber surround 220 and the housing 100, and the air channel is formed between the housing 100 and the heat insulation layer structure. With such an arrangement, when the air flow passes through the air channel, the heat insulation layer structure can effectively prevent the reduction of the heat dissipation of the air flow to the cooking chamber surround 220, thereby further ensuring the heating temperature in the cooking chamber 230 to ensure the cooking effect of the food in the fryer basket 700.

[0054] In some embodiments, the air fryer includes a furnace cavity housing 200, a furnace head assembly 300, and a perimeter heat insulation layer 400 included in the heat insulation layer structure. Among them, the outer shell 100 includes a shell body 110, a bottom cover 120, and a top cover 130. The bottom cover 120 is connected to the bottom of the shell body 110, and the top cover 130 is connected to the top of the shell body 110. A pick-up opening 111 is provided on the front surface of the shell body 110. The control panel of the air fryer can be set on the front surface of the shell body 110 or the top cover 130. The furnace cavity housing 200 includes a bottom plate 210 and a furnace cavity perimeter 220. The bottom plate 210 is disposed at the bottom inside the outer shell 100, that is, inside the bottom cover 120. The furnace cavity perimeter 220 is disposed inside the shell body 110. The bottom edge of the furnace cavity perimeter 220 is connected to the edge portion of the bottom plate 210. A cooking chamber 230 is formed between the bottom plate 210 and the furnace cavity perimeter 220. The placement opening 231 of the cooking chamber 230 is exactly located at the pick-up opening 111 of the outer shell 100. The frying bucket of the air fryer can be placed in the cooking chamber 230 through the placement opening 231. The furnace head assembly 300 is disposed at the top of the furnace cavity perimeter 220. The furnace head assembly 300 faces the cooking chamber 230 and is used to provide hot air flow for the frying bucket 700 to circulate and heat the food in the frying bucket 700. The perimeter heat insulation layer 400 is disposed on the inside of the outer shell 100 and the outside of the furnace cavity perimeter 220. There is a gap between the inside of the outer shell 100 and the outside of the perimeter heat insulation layer 400 to form a first air passage, such as the first air passage 150 in the figure. The first lateral passage, the first air passage 150, is used for air flow to pass through.

[0055] Specifically, when the air fryer is in use, the frying bucket 700 containing food is placed inside the cooking chamber 230 through the placement opening 231 of the cooking chamber 230. The furnace head assembly 300 generates hot air flow to circulate and heat the food in the frying bucket 700, and the surface of the food is dehydrated to form a fried-like texture. At the same time, in order to prevent the outer shell 100 from scalding the user, the air flow in the external environment flows through the first air passage 150 between the shell body 110 and the perimeter heat insulation layer 400 after entering the shell, so as to timely take out the heat between the two, preventing the outer shell 100 from being heated and scalding the user.

[0056] In the present application, a perimeter heat insulation layer 400 is added between the furnace cavity perimeter 220 and the shell body 110. With this setting, the perimeter heat insulation layer 400 further effectively reduces the heat radiation from the cooking chamber 230 to the outer shell 100 compared with the prior art, thus preventing the outer shell 100 from scalding the user due to excessive temperature. At the same time, the perimeter heat insulation layer 400 is wrapped around the outside of the furnace cavity perimeter 220, and the perimeter heat insulation layer 400 has a heat preservation effect on the cooking chamber 230. In this way, it is ensured that there is a sufficiently high heating temperature in the cooking chamber 230, thus ensuring the cooking effect of the food in the frying bucket 700.

[0057] In addition, the surrounding insulation layer 400 is arranged between the oven cavity surrounding edge 220 and the shell body 110, and the first air channel 150 is formed between the shell body 110 and the surrounding insulation layer 400. In this arrangement, when the airflow passes through the first air channel 150, the surrounding insulation layer 400 can effectively prevent the airflow from reducing the heat dissipation of the oven cavity surrounding edge 220, thereby further ensuring the heating temperature in the cooking chamber 230 to ensure the cooking effect of the food in the fryer barrel 700.

[0058] The surrounding heat-insulating layer 400 may be made of metal or other materials that are resistant to high temperatures and have heat-insulating effects.

[0059] In some embodiments, reference Figure 1 and Figure 2 The housing 100 is provided with a take-in and take-out opening 111, and the surrounding heat insulation layer 400 is arranged in a U-shape, and the two ends of the surrounding heat insulation layer 400 extend to the two side edges of the take-in and take-out opening 111, respectively, so that the placement opening 231 of the cooking chamber 230 is connected with the take-in and take-out opening 111 of the housing 100, and the fryer barrel 700 can be placed inside the cooking chamber 230 through the take-in and take-out opening 111. It can be understood that the surrounding heat insulation layer 400 adopts the above-mentioned structural form, and the surrounding heat insulation layer 400 can be fully wrapped around the outer side of the oven cavity surrounding edge 220, so as to have a good heat preservation effect on the cooking chamber 230, so as to ensure the cooking effect of the food in the fryer barrel 700.

[0060] In some embodiments, reference Figure 1 and Figure 2 , a second air channel 140 is defined between the bottom plate 210 and the bottom of the housing 100, more specifically, the second air channel 140 is a gap between the bottom cover 120 and the bottom plate 210. The lower end of the first air channel 150 is connected to the second air channel 140. A top heat dissipation cavity 160 is defined between the burner head assembly 300 and the top of the housing 100, and some components of the burner head assembly 300 can be understood as being located in the top heat dissipation cavity 160, and the upper end of the first air channel 150 is connected to the top heat dissipation cavity 160. After entering the housing 100, the air in the external environment can flow from the second air channel 140 to the top heat dissipation cavity 160 through the first air channel 150, or from the top heat dissipation cavity 160 to the second air channel 140 through the first air channel 150, which will be described in detail later.

[0061] In one possible embodiment, referring to Figure 2 The bottom of the housing 100 is provided with a first air inlet 121 connected to the second air passage 140. More specifically, the first air inlet 121 is provided on the surface of the bottom cover 120 and connected to the second air passage 140. The top of the housing 100 is provided with a second air inlet 113 (refer to Figure 3), more specifically, the second air inlet 113 can be arranged at the upper part of the back surface of the housing body 110, or can be arranged in the gap between the housing body 110 and the top cover 130, or can also be arranged on the top cover 130. A first air outlet 112 communicating with the top heat dissipation cavity 160 is arranged at the top of the outer shell 100. More specifically, the first air outlet 112 can be arranged at the upper part of the back surface of the housing body 110, or can be arranged on the top cover 130.

[0062] Specifically, during the heat dissipation process of the air fryer, a part of the air flow enters the second air passage 140 from the first air inlet 121. The air flow in the second air passage 140 flows into the top heat dissipation cavity 160 from the second air passage 140 through the first air passage 150, and is discharged from the first air outlet 112 under the action of the burner assembly 300. At the same time, another part of the air flow directly enters the inner side of the top heat dissipation cavity 160 from the second air inlet 113, and is discharged from the first air outlet 112 under the action of the burner assembly 300.

[0063] In another possible embodiment, referring to Figure 2 , a first air inlet 121 communicating with the second air passage 140 is arranged at the bottom of the outer shell 100. More specifically, the first air inlet 121 is arranged on the surface of the bottom cover 120 and communicates with the second air passage 140. A first air outlet 112 communicating with the top heat dissipation cavity 160 is arranged at the top of the outer shell 100. More specifically, the first air outlet 112 can be arranged at the upper part of the back surface of the housing body 110, or can be arranged on the top cover 130.

[0064] It can be understood that, compared with arranging both an air inlet and an air outlet at the top of the outer shell 100, in this embodiment, the air inlet arranged at the top of the outer shell 100 is cancelled, and only the first air inlet 121 is arranged on the bottom cover 120. With such an arrangement, a sufficient amount of air flow passes through the second air passage 140 and the first air passage 150 and flows to the top heat dissipation cavity 160, thereby ensuring effective heat dissipation of the outer shell 100, and further preventing the outer shell 100 from being heated and scalding the user.

[0065] In other possible embodiments, a third air inlet communicating with the top heat dissipation cavity 160 is arranged at the top of the outer shell 100. More specifically, the third air inlet is arranged on the top cover 130, the upper part of the housing body 110 or between the housing body 110 and the top cover 130 to communicate with the top heat dissipation cavity 160; at the same time, a second air outlet communicating with the second air passage 140 is arranged at the bottom of the outer shell 100. More specifically, the second air outlet is arranged on the bottom cover 120 to communicate with the second air passage 140.

[0066] Specifically, during the heat dissipation process of the air fryer, the air flow in the external environment first flows into the top heat dissipation cavity 160 from the third air inlet, and the air flow entering the top heat dissipation cavity 160 flows into the second air passage 140 from the first air passage 150 and is discharged from the second air outlet. With this arrangement, the air flow in the external environment first flows into the top heat dissipation cavity 160, and the air flow can preferably dissipate heat from the components in the top heat dissipation cavity 160, thereby ensuring the service life of the components in the air fryer. Also, a sufficient amount of air flow passes through the first air passage 150 and the second air passage 140, so as to ensure effective heat dissipation of the housing 100, and further prevent the housing 100 from being heated and scalding the user.

[0067] In some embodiments, the peripheral heat insulation layer 400 is spaced apart from the furnace cavity periphery 220, and a first heat insulation cavity is formed between the peripheral heat insulation layer 400 and the furnace cavity periphery 220. The first heat insulation cavity can be a sealed cavity or a cavity communicating with the outside. It can be understood that through the setting of the first heat insulation cavity, the heat radiation from the cooking chamber 230 to the peripheral heat insulation layer 400 is reduced, ensuring the cooking temperature of the cooking chamber 230.

[0068] In order to appropriately reduce the heat accumulated between the furnace cavity periphery 220 and the peripheral heat insulation layer 400, in one possible embodiment, referring to Figure 1 And Figure 2 , the peripheral heat insulation layer 400 is provided with a ventilation opening 410, and the ventilation opening 410 is communicated with the first air passage 150. It can be understood that when the air flow passes through the first air passage 150, the air flow just passes through the position of the ventilation opening 410. Also, since the flow velocity of the air flow in the first air passage 150 is relatively fast, and the hot air between the peripheral heat insulation layer 400 and the furnace cavity periphery 220 hardly flows, therefore, when the air flow passes through the position of the ventilation opening 410, a part of the high-temperature air between the peripheral heat insulation layer 400 and the furnace cavity periphery 220 will be sucked out due to the negative pressure effect. So the above ventilation opening 410 can effectively reduce the local temperature rise exceeding the standard caused by the heat accumulation due to the non-circulation of the above hot air on the back of the housing body 110.

[0069] Instead of the ventilation opening 410 being communicated with the first air passage 150, in another possible embodiment, referring to Figure 1 And Figure 2, a ventilation opening 410 is provided at the top of the peripheral heat insulation layer 400, and the ventilation opening 410 is communicated with the top heat dissipation cavity 160. Specifically, a ventilation opening 410 is defined between the edge portion of the peripheral heat insulation layer 400 close to the burner assembly 300 and the edge portion of the furnace cavity periphery 220 close to the burner assembly 300. The ventilation opening 410 is arranged towards the top of the housing 100 and is communicated with the top heat dissipation cavity 160. Alternatively, the edge portion of the peripheral heat insulation layer 400 close to the burner assembly 300 has a flanging towards the furnace cavity periphery 220, and the flanging is provided with a ventilation opening 410 communicated with the top heat dissipation cavity 160; or, the edge portion of the furnace cavity periphery 220 close to the burner assembly 300 has a flanging towards the peripheral heat insulation layer 400, and the flanging is provided with a ventilation opening 410 communicated with the top heat dissipation cavity 160. It can be understood that the first air outlet 112 is arranged at the top of the housing 100 and is communicated with the top heat dissipation cavity 160. The ventilation opening 410 is communicated with the top heat dissipation cavity 160 and is arranged towards the top of the housing 100, and the flowing air can take out a part of the high-temperature air between the peripheral heat insulation layer 400 and the furnace cavity periphery 220 to reduce the heat accumulation between the two.

[0070] Further, the burner assembly 300 has an air exhaust opening which is just arranged facing the first air outlet 112. Thus, the air flow discharged from the burner assembly 300 can smoothly flow towards the first air outlet 112 and be discharged from the first air outlet 112 to complete the replacement of the air flow. At the same time, the ventilation opening 410 is communicated with the top heat dissipation cavity 160 and is arranged facing the air exhaust path of the burner assembly 300. More precisely, the exhaust path of the burner assembly 300 is just located directly above the ventilation opening 410. With such an arrangement, the flow rate of the air flow during discharge is relatively fast, and the hot air between the peripheral heat insulation layer 400 and the furnace cavity periphery 220 basically does not flow. Therefore, when the air flow passes directly above the ventilation opening 410, a part of the high-temperature air between the peripheral heat insulation layer 400 and the furnace cavity periphery 220 will be sucked out due to the negative pressure effect. Therefore, the above-mentioned ventilation opening 410 can effectively reduce the local temperature rise exceeding the standard caused by the heat accumulation caused by the non-flow of the above-mentioned hot air on the back of the shell body 110.

[0071] Even further, referring to Figure 1 and Figure 2 , the burner assembly 300 includes a cover body assembly 310, a driving member 320, a heat dissipation fan blade 330 and a heating fan blade 340 (referring to Figure 4 and Figure 5), wherein the cover assembly 310 includes a first cover 311 and a second cover 312. The first cover 311 is connected to the end of the furnace cavity perimeter 220 away from the bottom plate 210, and a top heat dissipation cavity 160 is defined between the first cover 311 and the top cover 130 of the outer shell 100. The second cover 312 is assembled on the outer side of the first cover 311, that is, on the side of the first cover 311 close to the top cover 130. An accommodating cavity 313 and a wind guiding channel 314 that are connected to each other are defined between the first cover 311 and the second cover 312. The wind guiding channel 314 has an air outlet and extends toward the first air outlet 112, and the ventilation opening 410 is connected to the wind guiding channel 314. The second cover 312 is provided with an air inlet 3121 that is connected to the accommodating cavity 313. A bracket 315 is provided at the position of the air inlet 3121 of the second cover 312. The main body of the driving member 320 is assembled and connected to the bracket 315 and is located at the position of the air inlet 3121. The heat dissipation fan blade 330 is arranged in the accommodating cavity 313 and is connected to the driving shaft of the driving member 320. Moreover, the heating fan blade 340 is arranged on the side of the first cover 311 away from the second cover 312 and faces the cooking chamber 230, and the heating fan blade 340 is also connected to the driving shaft of the driving member 320. Thus, the driving member 320 drives the heat dissipation fan blade 330 and the heating fan blade 340 to rotate synchronously. At the same time, a heating member 350 is further arranged on the side of the first cover 311 away from the second cover 312, and the heating fan blade 340 is located between the heating member 350 and the first cover 311.

[0072] Specifically, during the use of the air fryer, the driving member 320 drives the heat dissipation fan blade 330 and the heating fan blade 340 to rotate synchronously. Among them, during the rotation of the heat dissipation fan blade 330, the air in the top heat dissipation cavity 160 enters the accommodating cavity 313 from the air inlet 3121, the air flows from the wind guiding channel 314 to the first air outlet 112, and is discharged to the outside of the outer shell 100. Thus, the air replacement in the air fryer is completed to ensure the heat dissipation effect of the outer shell 100 in the air fryer. At the same time, during the rotation of the heating fan blade 340, the heating fan blade 340 makes the high-temperature air flow circulate in the fryer barrel 700, and the surface of the food is dehydrated to form a fried-like texture.

[0073] In addition, through the setting of the wind guiding channel 314, and the ventilation opening 410 is connected to the wind guiding channel 314. With such a setting, the air flow flowing above the ventilation opening 410 is fast enough, so as to preferably absorb the heat between the furnace cavity perimeter 220 and the perimeter heat insulation layer 400, and effectively reduce the local temperature rise exceeding the standard caused by the heat accumulation caused by the non-circulation of the above-mentioned hot air on the back of the shell body 110.

[0074] In some embodiments, referring to 2, Figure 6 and Figure 7, the air fryer further includes an air outlet net 600. The first air outlet 112 is disposed on the back surface of the housing body 110 of the housing 100 and is communicated with the top heat dissipation cavity 160. The air outlet net 600 is disposed at the first air outlet 112, and the air outlet net 600 has a dust-proof effect on the first air outlet 112.

[0075] However, due to the blockage of the air outlet net 600 on the back of the air fryer, part of the air flow is blocked when flowing through the air outlet net 600 on the back, and the air flow cannot flow through the preset first air passage 150, which will cause heat to accumulate below the air outlet net 600 on the back of the air fryer, resulting in local over-temperature of the back of the air fryer. Based on the above problems, the housing body 110 of the housing 100 is provided with a heat dissipation port 114, and the heat dissipation port 114 is disposed directly below the first air outlet 112, that is, the first air outlet 112 and the heat dissipation port 114 are not staggered in the circumferential direction of the housing body 110. With such a setting, the heat blocked by the air outlet net 600 can be discharged from the heat dissipation port 114 in time to solve the above problems.

[0076] In some embodiments, referring to Figure 1 and Figure 2 , the heat insulation layer structure further includes a bottom heat insulation layer 500. The bottom heat insulation layer 500 is disposed at the bottom inside the housing 100 and is located on the side of the bottom plate 210 away from the burner assembly 300. The bottom heat insulation layer 500 has the same projected area as the bottom plate 210. Between the bottom heat insulation layer and the bottom plate, the edge portion of the bottom heat insulation layer 500 is hermetically connected to the edge portion of the surrounding heat insulation layer 400. A second air passage 140 is formed between the bottom cover 120 of the housing 100 and the bottom heat insulation layer 500; wherein, a first air inlet 121 is formed at the bottom of the housing 100, and the projected area of the bottom heat insulation layer 500 is larger than the projected area of the first air inlet 121.

[0077] In the present application, the bottom heat insulation layer 500 is added between the bottom plate 210 and the bottom cover 120. With such a setting, the bottom heat insulation layer 500 further effectively reduces the heat radiation from the cooking chamber 230 to the housing 100 compared with the prior art, thereby preventing the housing 100 from scalding the user due to excessive temperature. At the same time, the bottom heat insulation layer 500 is wrapped around the outside of the bottom plate 210, and the bottom heat insulation layer 500 has a heat preservation effect on the cooking chamber 230. In this way, it is ensured that there is a sufficiently high heating temperature in the cooking chamber 230, thereby ensuring the cooking effect of the food in the frying basket 700.

[0078] In addition, the bottom heat insulation layer 500 is disposed between the bottom plate 210 and the bottom cover 120, and the second air passage 140 is formed between the bottom cover 120 and the bottom heat insulation layer 500. With this arrangement, when the air flow passes through the second air passage 140, the bottom heat insulation layer 500 can effectively reduce the heat dissipation of the air flow to the bottom plate 210, thereby further ensuring the heating temperature in the cooking chamber 230 to guarantee the cooking effect of the food in the fryer barrel 700.

[0079] Among them, the bottom heat insulation layer 500 can be made of a metal material or other materials with high temperature resistance and heat preservation effects.

[0080] In some embodiments, the bottom heat insulation layer 500 is spaced from the bottom plate 210, and a second heat preservation cavity is formed between the bottom heat insulation layer 500 and the bottom plate 210. The second heat preservation cavity can be a closed cavity or a cavity communicating with the outside. It can be understood that through the setting of the second heat preservation cavity, the heat radiation of the cooking chamber 230 to the bottom heat insulation layer 500 is reduced, ensuring the cooking temperature of the cooking chamber 230.

[0081] In some embodiments, referring to Figure 1 、 Figure 2 and Figure 8 , the air fryer further includes a fryer barrel 700. The fryer barrel 700 includes a barrel body 710, a fry barrel heat insulation plate 720, a fry barrel panel 730, and a handle 760. Among them, the fry barrel heat insulation plate 720 is connected to the outer side wall of the barrel body 710, the fry barrel panel 730 is connected to the side of the fry barrel heat insulation plate 720 away from the barrel body 710, the handle 760 is connected to the outer side of the fry barrel panel 730, and a third air passage 750 is defined between the outer side of the fry barrel heat insulation plate 720 and the inner side of the fry barrel panel 730. Among them, the fry barrel panel 730 can be understood as a part of the outer shell 100. In application, when the barrel body 710 of the fryer barrel 700 is placed in the cooking chamber 230, one end of the third air passage 750 is communicated with the second air passage 140, and the other end is communicated with the top heat dissipation cavity 160.

[0082] It can be understood that during the heat dissipation process of the air fryer, after the air flow flows into the second air passage 140 from the first air inlet, a part of the air flow flows into the top heat dissipation cavity 160 through the third air passage 750, and another part of the air flow flows into the top heat dissipation cavity 160 through the third air passage 750. It can be understood that when the air flow passes through the third air passage 750, the air flow timely takes away the heat in the third air passage 750, thereby realizing the heat dissipation of the fry barrel panel 730 to avoid scalding the user.

[0083] Further, the heat insulation layer structure further includes a frying barrel heat insulation layer 740 disposed between the frying barrel heat insulation plate 720 and the frying barrel panel 730. The end of the frying barrel heat insulation layer 740 has a curvature to be adapted for sealing connection with the outer side surface of the frying barrel heat insulation plate 720. A third air channel 750 as described above is formed between the frying barrel heat insulation layer 740 and the frying barrel panel 730.

[0084] In the present application, the frying barrel heat insulation layer 740 is added between the frying barrel heat insulation plate 720 and the frying barrel panel 730. With such an arrangement, the frying barrel heat insulation layer 740 can further effectively reduce the heat radiation in the cooking chamber 230 to the frying barrel panel 730 compared with the prior art, thereby preventing the frying barrel panel 730 from scalding the user due to excessive temperature. At the same time, the frying barrel heat insulation layer 740 is wrapped outside the frying barrel heat insulation layer 740, and the frying barrel heat insulation layer 740 has a heat preservation effect on the cooking chamber 230. In this way, it is ensured that there is a sufficiently high heating temperature in the cooking chamber 230, thereby ensuring the cooking effect of the food in the frying pot barrel 700.

[0085] In addition, the frying barrel heat insulation layer 740 is disposed between the frying barrel heat insulation plate 720 and the frying barrel panel 730, and the third air channel 750 is formed between the frying barrel panel 730 and the frying barrel heat insulation layer 740. With such an arrangement, when the air flow passes through the third air channel 750, the frying barrel heat insulation layer 740 can effectively prevent the reduction of the heat dissipation of the frying barrel heat insulation plate 720 by the air flow, thereby further ensuring the heating temperature in the cooking chamber 230 to ensure the cooking effect of the food in the frying pot barrel 700.

[0086] Among them, the frying barrel heat insulation layer 740 can be made of a metal material or other materials with high temperature resistance and heat preservation effects.

[0087] In some embodiments, the frying barrel heat insulation plate 720 and the frying barrel heat insulation layer 740 are spaced apart, and a third heat preservation cavity is formed between the frying barrel heat insulation plate 720 and the frying barrel heat insulation layer 740. The third heat preservation cavity can be a closed cavity or a cavity communicating with the outside. It can be understood that through the setting of the third heat preservation cavity, the heat radiation of the cooking chamber 230 to the frying barrel heat insulation layer 740 is reduced, ensuring the cooking temperature of the cooking chamber 230.

[0088] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. Air fryer, characterized in that, comprising a housing; a bottom plate disposed at the bottom inside the housing; a cooking chamber perimeter connected to the bottom plate, and the cooking chamber perimeter and the bottom plate enclose a cooking chamber; a heat insulation layer structure disposed inside the housing, the heat insulation layer structure being disposed outside the cooking chamber, and an air channel being formed between the heat insulation layer structure and the housing.

2. The air fryer according to claim 1, characterized in that, the heat insulation layer structure includes a perimeter heat insulation layer disposed inside the housing, the perimeter heat insulation layer being disposed outside the cooking chamber perimeter, and a first air channel being formed between the housing and the perimeter heat insulation layer.

3. The air fryer according to claim 2, characterized in that, the perimeter heat insulation layer and the cooking chamber perimeter form a first heat preservation cavity.

4. The air fryer according to claim 2, characterized in that, the perimeter heat insulation layer is provided with a ventilation opening.

5. The air fryer according to claim 4, characterized in that, the ventilation opening is communicated with the first air channel.

6. The air fryer according to claim 4, characterized in that, the ventilation opening is provided at the top of the perimeter heat insulation layer.

7. The air fryer according to claim 2, characterized in that, the perimeter heat insulation layer is U-shaped.

8. The air fryer according to claim 2, characterized in that, the perimeter heat insulation layer is made of a metal material.

9. The air fryer according to claim 2, characterized in that, the housing is provided with a heat dissipation opening on the first air channel.

10. The air fryer according to claim 1, characterized in that, the heat insulation layer structure includes a bottom heat insulation layer disposed between the bottom plate and the bottom of the housing, and a second air channel being formed between the bottom of the housing and the bottom heat insulation layer.

11. The air fryer according to claim 10, characterized in that, the bottom heat insulation layer and the bottom plate form a second heat preservation cavity.

12. The air fryer according to claim 10, characterized in that, the bottom heat insulation layer and the bottom plate have the same projected area.

13. The air fryer according to claim 10, characterized in that, the bottom of the housing is provided with a first air inlet, and the projected area of the bottom heat insulation layer is larger than the projected area of the first air inlet.

14. The air fryer according to claim 10, characterized in that, the bottom heat insulation layer is made of a metal material.

15. The air fryer according to claim 1, characterized in that, including: a fryer bucket heat insulation board that closes the opening of the cooking chamber; a fryer bucket panel disposed on the side of the fryer bucket heat insulation board away from the cooking chamber; the heat insulation layer structure includes a fryer bucket heat insulation layer disposed between the fryer bucket heat insulation board and the fryer bucket panel, and a third air channel being formed between the fryer bucket heat insulation layer and the fryer bucket panel.

16. The air fryer according to claim 15, characterized in that, the fryer bucket heat insulation layer and the fryer bucket heat insulation board form a third heat preservation cavity.

17. The air fryer according to claim 15, characterized in that, the heat insulation layer of the frying barrel is made of metal material.

18. The air fryer according to claim 15, characterized in that, the end of the heat insulation layer of the frying barrel has a radian.

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