An air fryer with a lower air intake

Abstract

The application discloses an air fryer with lower air inlet, and belongs to the technical field of air fryers. The air fryer comprises a shell with a cooking cavity, a hot air assembly arranged in the shell, and a detachable frying barrel arranged in the cooking cavity. A heat insulation flow channel is arranged in the cooking cavity and wraps the lower part of the frying barrel. The shell is provided with an air inlet and an air outlet. The air inlet is arranged at the lower part of the shell. The heat insulation flow channel is connected with the air inlet and the air outlet. The hot air assembly drives external air to enter the heat insulation flow channel through the air inlet, and the air is discharged through the air outlet. The air inlet with the lower air inlet and the heat insulation flow channel arranged in the shell can cancel the heat insulation structure required by the lower part of the frying barrel, simplify the internal structure of the air fryer, and reduce the processing difficulty and cost. In addition, the air supplied to the frying barrel has been preheated when flowing through the heat insulation flow channel, that is, the heat energy conducted outward from the lower part of the frying barrel is recovered to a certain extent, so that the heat efficiency can be improved and the energy consumption can be reduced to a certain extent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air fryers, in particular to an air fryer with lower air inlet. BACKGROUND

[0002] An air fryer is a household appliance that can use air to cook food, which mainly uses air to replace the hot oil in the original frying pan to make food cooked, and the hot air also blows away the moisture on the surface of the food, so that the food achieves the effect of oil frying.

[0003] The heating temperature of the air fryer can usually reach 200 degrees Celsius, and some high-power air fryers can reach 230 degrees Celsius. When the high temperature cannot be effectively isolated, the high temperature will be quickly conducted to the external shell. Therefore, the existing air fryer needs to be provided with a corresponding heat insulation structure to wrap the frying barrel in the air fryer, so as to avoid direct conduction of high temperature to the external shell. The overall structure is relatively complex, and the processing difficulty and cost are high. SUMMARY

[0004] In order to overcome the defects existing in the prior art, the present application provides an air fryer with lower air inlet.

[0005] The technical scheme adopted by the present application to solve the technical problems is: an air fryer with lower air inlet, comprising:

[0006] A shell body is provided with a cooking cavity inside;

[0007] A hot air assembly is provided in the shell body;

[0008] A frying barrel is detachably placed in the cooking cavity;

[0009] The cooking cavity is provided with a heat insulation flow channel wrapping the lower part of the frying barrel, the shell body is respectively provided with an air inlet and an air outlet, the air inlet is located at the lower part of the shell body, the heat insulation flow channel is respectively communicated with the air inlet and the air outlet, and the hot air assembly drives the external air to enter the heat insulation flow channel from the air inlet and is discharged from the air outlet.

[0010] As a preferred, after the lower part of the frying barrel is wrapped in the heat insulation flow channel, the heat insulation flow channel is in the shape of a pot, and the lower part of the frying barrel is directly opposite to the inner side wall of the shell body.

[0011] As a preferred, the air inlet is arranged at the bottom of the shell body and is opposite to the bottom of the frying barrel.

[0012] As a preferred, the shell body comprises a shell body and a base arranged at the bottom of the shell body, the air inlet is arranged on the base, the middle part of the bottom surface of the base is provided with an inner recess, and a plurality of supporting legs are arranged in the inner recess.

[0013] As preferred, a plurality of ridges are arranged on the outer side of the base, and the ridges abut against the shell body, so that a plurality of gaps are formed between the base and the shell body, and the plurality of gaps constitute the air inlet.

[0014] As preferred, the air inlet is arranged at the bottom of the base, the air inlet is arc-shaped, and a baffle is arranged below the air inlet.

[0015] As preferred, a plurality of annular protrusions or a plurality of arc-shaped protrusions are arranged at the bottom of the base, and the air inlet is arranged on the side of the annular protrusion or the arc-shaped protrusion.

[0016] As preferred, the air inlet is arranged on the side of the bottom of the shell, and the air inlet is arranged in a lower air inlet mode.

[0017] As preferred, the shell comprises a shell body and a base arranged at the bottom of the shell body, the base is plate-shaped as a whole, and a plurality of supporting legs are arranged on the bottom surface of the base.

[0018] As preferred, the hot air assembly comprises a heating pipe, a circulating inner fan blade, a heat dissipation fan blade and a driving motor, a wind guide cover capable of covering the upper part of the frying barrel is arranged in the cooking cavity, the heating pipe and the circulating inner fan blade are arranged in the wind guide cover, the heat dissipation fan blade is arranged above the wind guide cover, and the external air is brought into the heat insulation flow channel through the heat dissipation fan blade or the circulating inner fan blade, and then is discharged through the air outlet.

[0019] As preferred, the air fryer further comprises a pot rack, the pot rack comprises a sealing part and a supporting part, the sealing part is arranged in the cooking cavity through the supporting part, the upper part of the sealing part is provided with a sealing support, the outer edge of the main body of the frying barrel can be arranged above the sealing support, and the lower part of the sealing part is provided with an arc-shaped air-tight baffle.

[0020] As preferred, a plurality of guide gaps are arranged on the outer side of the sealing part, the supporting part is connected with the bottom of the shell, the heat insulation flow channel is communicated to the upper part of the shell through the guide gaps, and the supporting part adopts a vertical column with a back line groove, and the line groove on the back of the vertical column is tightly attached to the shell.

[0021] Compared with the prior art, the air fryer has the following beneficial effects: by arranging the air inlet in a lower air inlet mode and arranging the heat insulation flow channel in the shell, the heat insulation structure required for the lower part of the frying barrel can be cancelled, the internal structure of the air fryer is simplified, the processing difficulty and cost are reduced, and the heat efficiency is improved and the energy consumption is reduced to a certain extent, because the air supplied to the frying barrel has been preheated when flowing through the heat insulation flow channel, and the heat energy conducted outward from the lower part of the frying barrel is recovered to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a structural diagram of the frying barrel and the heat insulation structure in the prior art;

[0023] Figure 2 FIG. 1 is a structural diagram of the frying barrel and the heat insulation structure in the prior art;Figure 1 ;

[0024] Figure 3 is a perspective view of the embodiment one of the present application; Figure 2 ;

[0025] Figure 4 is a sectional view of the embodiment one of the present application;

[0026] Figure 5 is Figure 4 an enlarged view of A in FIG. 6;

[0027] Figure 6 is a perspective view of the base in the embodiment one of the present application; Figure 1 ;

[0028] Figure 7 is a perspective view of the base in the embodiment one of the present application; Figure 2 ;

[0029] Figure 8 is a perspective view of the pot rack in the embodiment of the present application;

[0030] Figure 9 is an assembly view of the frying barrel and the pot rack in the embodiment of the present application;

[0031] Figure 10 is a perspective view of the base in the embodiment two of the present application;

[0032] Figure 11 is a sectional view of the base in the embodiment two of the present application;

[0033] Figure 12 is a perspective view of the base in the embodiment three of the present application;

[0034] Figure 13 is a sectional view of the base in the embodiment three of the present application;

[0035] Figure 14 is an enlarged sectional view of the embodiment four of the present application;

[0036] Figure 15 is a perspective view of the embodiment five of the present application; Figure 1 ;

[0037] Figure 16 is a perspective view of the embodiment five of the present application; Figure 2 ;

[0038] Figure 17 is a sectional view of the embodiment five of the present application;

[0039] Figure 18 is Figure 17 an enlarged view of B in FIG. 10;

[0040] Figure 19 This is a three-dimensional diagram of the base and the pot rack in the fifth embodiment of the present invention;

[0041] Figure 20 This is a schematic diagram of the coordination between the frying tub and the pot stand in the fifth embodiment of the present invention;

[0042] Figure 21 Schematic diagram of air flow direction in an embodiment of the present invention.

[0043] In the figure, 10, shell; 11, shell body; 12, base; 13, inner recess; 14, supporting foot; 15, ridge; 16, gap; 17, baffle; 18, arc-shaped protrusion; 20, cooking cavity; 21, heat insulation flow channel; 22, air inlet; 23, air outlet; 31, heating tube; 32, inner circulation fan blade; 33, heat dissipation fan blade; 34, driving motor; 35, air guide cover; 40, frying vat; 50, pot rack; 51, sealing part; 52, sealing support platform; 53, arc-shaped airtight baffle; 54, conductive gap; 55, supporting part. DETAILED DESCRIPTION

[0044] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. Example 1

[0045] As attached Figures 1-9 As shown, the present invention provides an air fryer with downward air intake, comprising:

[0046] The housing 10 has a cooking cavity 20 therein;

[0047] A hot air assembly is provided in the housing 10;

[0048] A frying vat 40 is detachably placed in the cooking cavity 20 and is used to hold food;

[0049] An insulating flow channel 21 is provided in the cooking cavity 20, which wraps the lower part of the frying vat 40. After the lower part of the frying vat 40 is entirely wrapped in the insulating flow channel 21, the insulating flow channel 21 is pot-shaped, and the lower part of the frying vat 40 is directly opposite to the inner side wall of the shell 10. The shell 10 is respectively provided with an air inlet 22 and an air outlet 23. In this embodiment, the air outlet 23 is provided at the upper part of the shell 10, and the air inlet 22 is located at the lower part of the shell 10. Specifically, the air inlet 22 is provided at the bottom of the shell 10 and is opposite to the bottom of the frying vat 40. The insulating flow channel 21 is respectively connected to the air inlet 22 and the air outlet 23. The hot air component drives the external air into the insulating flow channel 21 through the air inlet 22 and is discharged through the air outlet 23.

[0050] Specifically, during the operation of the air fryer, the hot air assembly forms circulating high-temperature hot air to cook food in the frying barrel 40, and at the same time, the external air is introduced into the heat insulation channel 21 from the air inlet 22 at the lower part of the shell 10, thereby forming a flowing air heat insulation cooling barrier between the lower part of the frying barrel 40 and the shell 10. The heat conducted outward from the lower part of the frying barrel 40 can be transferred to the flowing low-temperature air, and the heated air can continue to flow upward and then be brought into the frying barrel 40 by the hot air assembly to cook the food, or be directly discharged to the outside of the shell 10 through the air outlet 23. Compared with the prior art, by using the air inlet 22 with lower air inlet and setting the heat insulation channel 21 inside the shell 10, the heat insulation structure required for the lower part of the frying barrel 40 can be cancelled, the internal structure of the air fryer is simplified, the processing difficulty and cost are reduced, and at the same time, since the air supplemented to the frying barrel 40 has been preheated when flowing through the heat insulation channel 21, that is, the heat energy conducted outward from the lower part of the frying barrel 40 is recovered to a certain extent, so that the thermal efficiency can be improved to a certain extent and the energy consumption can be reduced.

[0051] Further, the shell 10 includes a shell body 11 and a base 12 arranged at the bottom of the shell body 11. The base 12 is integrally formed, and the top thereof is a whole plane. The air inlet 22 is arranged on the base 12. The bottom surface of the base 12 is provided with a recessed portion 13 in the middle. A plurality of support feet 14 are arranged in the recessed portion 13. By using the air inlet 22 with lower air inlet and setting the heat insulation channel 21 inside the shell 10, the heat insulation structure required for the lower part of the frying barrel 40 can be cancelled, the structure of the original base 12 is simplified, the base 12 can be integrally formed, and the processing difficulty and cost are reduced.

[0052] Further, a plurality of ridges 15 are arranged on the outer side of the base 12. The outer side of the ridges 15 abuts against the shell body 11, so that a plurality of gaps 16 are formed between the base 12 and the shell body 11. The plurality of gaps 16 constitute the air inlet 22. The outer side of the upper end of the ridges 15 is provided with a chamfer. When the base 12 is assembled into the shell body 11, the chamfer can be used for guidance to improve the assembly convenience. By using the ridges 15 to constitute the air inlet 22 in cooperation with the shell body 11, compared with the air inlet 22 formed by opening a hole at the lower part of the shell body 11 or on the base 12, the processing is more convenient.

[0053] Furthermore, the hot air assembly includes a heating tube 31, a circulating inner fan blade 32, a heat dissipation fan blade 33 and a driving motor 34. The driving motor 34 synchronously drives the circulating inner fan blade 32 and the heat dissipation fan blade 33. An air guide hood 35 that can be arranged above the frying bucket 40 is provided in the cooking cavity 20. The heating tube 31 and the circulating inner fan blade 32 are arranged in the air guide hood 35, and the heat dissipation fan blade 33 is arranged above the air guide hood 35. The heat dissipation fan blade 33 or the circulating inner fan blade 32 drives the external air to enter the heat-insulating flow channel 21 from the air inlet 22. In this embodiment, after the external air enters the heat-insulating flow channel 21 from the air inlet 22, it flows upward. Part of it enters the air guide hood 35 driven by the circulating inner fan blade 32, that is, it is replenished into the frying bucket 40, and part of it is discharged to the outside through the air outlet 23 driven by the heat dissipation fan blade 33.

[0054] Furthermore, the air fryer also includes a pot rack 50 for forming a seal between the air guide cover 35 and the frying vat 40. The pot rack 50 includes a sealing portion 51 and a supporting portion 55. The sealing portion 51 is arranged in the cooking cavity 20 through the supporting portion 55. A sealing support 52 is provided on the upper portion of the sealing portion 51. The outer edge of the main body of the frying vat 40 can be placed above the sealing support 52. An arc-shaped airtight baffle 53 is provided on the lower portion of the sealing portion 51. The arc-shaped airtight baffle 53 is wrapped around the upper portion of the frying vat 40. Among them, since there is a certain gap 16 between the frying vat 40 and the pot rack 50, by providing the arc-shaped airtight baffle 53, the airtightness between the air guide cover 35 and the frying vat 40 can be improved, thereby improving the cooking effect.

[0055] Furthermore, a plurality of conducting notches 54 are provided at intervals on the outer side of the sealing portion 51, the supporting portion 55 is connected to the base of the shell 10, and the heat-insulating flow channel 21 is connected to the upper part of the shell 10 through the conducting notches 54. The supporting portion 55 adopts a column with a wire groove on the back, and the wire groove on the back of the column is in close contact with the shell 10. The wires can be routed inside the shell 10 through the wire groove on the back of the column to prevent the cables from directly contacting the high-temperature frying barrel 40 and causing damage. In addition, the wire groove on the back of the column is in close contact with the shell 10, which can prevent the cables from falling out of the wire groove. Example 2

[0056] As attached Figures 10-11 As shown, the difference between this embodiment and the above embodiment is that the air inlet 22 is arranged at the bottom of the base 12, the air inlet 22 is arc-shaped, and in order to prevent liquid from splashing into the air fryer through the air inlet 22, and to prevent foreign matter from directly entering the air fryer through the air inlet 22, a baffle 17 is horizontally provided below the air inlet 22, so that air can enter from the side of the baffle 17 to the bottom of the air inlet 22, and then enter the interior of the air fryer. Example 3

[0057] As attached Figures 12-13As shown, the difference between this embodiment and the above embodiment is that a plurality of groups of annular protrusions or a plurality of groups of arc-shaped protrusions 18 are provided at the bottom of the base 12, and the air inlet 22 is provided on the side of the annular protrusion or the arc-shaped protrusion 18 to prevent liquid from splashing directly into the interior of the air fryer through the air inlet 22. Example 4

[0058] As attached Figure 14 As shown, the difference between this embodiment and the above embodiment is that the air inlet 22 is arranged on the side of the bottom of the shell 10, and the air inlet 22 adopts the lower side air intake. Specifically, the shell 10 includes a shell body 11 and a base 12 arranged at the bottom of the shell body 11. A convex edge is provided on the outer side of the base 12, and an air inlet gap is left between the lower edge of the shell body 11 and the convex edge of the base 12. The air inlet gap constitutes the air inlet 22. Example 5

[0059] As attached Figures 15-20 As shown, the difference between this embodiment and the above embodiment is that the shell 10 includes a shell body 11 and a base 12 arranged at the bottom of the shell body 11, and the base 12 is plate-shaped as a whole. Among them, the plate-shaped base 12 can effectively simplify the internal structure and reduce processing costs and difficulty compared to the existing air fryer. A plurality of groups of supporting feet 14 are provided on the bottom surface of the base 12, and the air inlet 22 is circumferentially spaced on the outer edge of the base 12. The lower edge of the shell body 11 is flush with the base 12. By lifting the supporting feet 14, sufficient air intake space can be formed between the shell 10 and the placement table to ensure the air intake of the air inlet 22, and at the same time, it can also effectively prevent liquid from directly splashing into the interior of the air fryer from the air inlet 22; Among them, in order to further reduce the processing and assembly procedures, the pot rack 50 and the base 12 are integrally formed.

[0060] Principle of hot and cold air exchange cycle:

[0061] See attached Figure 21 , the technical solution of the above embodiment can effectively optimize the hot and cold air circulation effect inside the air fryer. When the air fryer is working, the air around the air fryer (the low-temperature air of the surrounding environment) enters the air fryer from the lower air inlet 22 and flows upward along the heat-insulating flow channel 21 as a whole, and then continuously circulates heat exchange with the residual heat of cooking in the heating tube 31, thereby preventing the residual heat from affecting other surrounding electrical appliances. The air that completes this circulated heat exchange is discharged from the air outlet to the outside of the air fryer. Compared with the traditional air fryer, the temperature of the shell 10 can be reduced by an average of 15°C. Figure 21 In the figure, the solid arrows indicate the direction of the circulating heat exchange outside the frying vat 40, and the dotted arrows indicate the direction of the circulating flow of hot air inside the frying vat 40.

[0062] The embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the described embodiments. It will be obvious to those skilled in the art that various changes, modifications, replacements, and variations of these embodiments can be made without departing from the spirit and scope of the present application, and such changes, modifications, replacements, and variations are also included in the scope of the present application.

[0063] The principles and spirit of the present application, and fall within the scope of the present application.

Claims

1. An air fryer employing a lower air intake, characterised in that, The utility model provides a kind of cooking device, including: Shell (10), inside cooking cavity (20) is equipped with; Hot air assembly, it is equipped in shell (10); Fry bucket (40), detachable is placed in cooking cavity (20); The cooking cavity (20) is equipped with heat insulation flow channel (21) that lower part of wrapping fry bucket (40) is equipped, and the shell (10) is equipped with air inlet (22) and air outlet (23) respectively, air inlet (22) is located in the lower part of shell (10), heat insulation flow channel (21) is communicated with air inlet (22) and air outlet (23) respectively, and hot air assembly drives external air to enter heat insulation flow channel (21) by air inlet (22), and is discharged by air outlet (23). After the lower part of the fry bucket (40) is wrapped in the heat insulation flow channel (21) as a whole, the heat insulation flow channel (21) is in the shape of a pot, and the lower part of the fry bucket (40) is directly opposite to the inner side wall of the shell (10), thereby forming an air flow heat insulation cooling barrier between the lower part of the fry bucket (40) and the shell (10).

2. An air fryer employing a lower air intake as claimed in claim 1 characterised in that, The air inlet (22) is arranged on the bottom of the shell (10) and opposite to the bottom of the fry bucket (40).

3. An air fryer employing a lower air intake as claimed in claim 1 characterised in that, The shell (10) includes a shell body (11) and a base (12) arranged at the bottom of the shell body (11), the air inlet (22) is arranged on the base (12), and a concave portion (13) is arranged in the middle of the bottom surface of the base (12), a plurality of support legs (14) are arranged in the concave portion.

4. An air fryer employing a lower air intake as claimed in claim 3 characterised in that, A plurality of ridges (15) are arranged on the outer side of the base (12) at intervals, the outer side of the ridges (15) abuts against the shell body (11), a plurality of gaps (16) are formed between the base (12) and the shell body (11), and the plurality of gaps (16) constitute the air inlet (22).

5. An air fryer employing a lower air intake as claimed in claim 3 characterised in that, The air inlet (22) is arranged on the bottom of the base (12), the air inlet (22) is in an arc shape, and a baffle (17) is arranged below the air inlet (22).

6. An air fryer employing a lower air intake as claimed in claim 3 characterised in that, A plurality of annular protrusions or a plurality of arc protrusions (18) are arranged on the bottom of the base (12), and the air inlet (22) is arranged on the side surface of the annular protrusion or the arc protrusion (18).

7. An air fryer employing a lower air intake as claimed in claim 1 characterised in that, The air inlet (22) is arranged on the side surface of the bottom of the shell (10), and the air inlet (22) adopts air inlet from the lower side.

8. An air fryer employing a lower air intake as claimed in claim 1 characterised in that, The shell (10) includes a shell body (11) and a base (12) arranged at the bottom of the shell body (11), the base (12) is in a plate shape, and a plurality of support legs (14) are arranged on the bottom surface of the base (12).

9. An air fryer employing a lower air intake as claimed in claim 1 characterised in that, The hot air assembly includes a heating tube (31), a circulating inner fan blade (32), a heat dissipation fan blade (33), and a driving motor (34), a wind guide cover (35) is arranged above the cooking cavity (20) and can cover the fry bucket (40), the heating tube (31) and the circulating inner fan blade (32) are arranged in the wind guide cover (35), the heat dissipation fan blade (33) is arranged above the wind guide cover (35), external air enters the heat insulation flow channel (21) through the air inlet (22) by the heat dissipation fan blade (33) or the circulating inner fan blade (32), and is discharged through the air outlet (23).

10. An air fryer employing a lower air intake as claimed in claim 1 characterised in that, Also include a pot rack (50), the pot rack (50) includes a sealing part (51) and support part (55), sealing part (51) is located in the cooking cavity (20) by support part (55), the upper part of sealing part (51) is provided with a sealing table (52), the outer edge of the main body of the frying barrel (40) can be placed above the sealing table (52), the lower part of the sealing part (51) is provided with an arc air-tight baffle (53); The outer side of the sealing part (51) is provided with a plurality of groups of through gaps (54), the support part (55) is connected with the bottom of the shell (10), the heat insulation flow channel (21) is communicated to the upper part of the shell (10) through the through gap (54), and the support part (55) adopts a column with a back line groove, and the line groove on the back of the column is tightly attached to the shell (10).

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