High-performance air fryer

Abstract

The utility model relates to a high-performance air fryer, and aims to solve the technical problems that fluid at a hot air system is large in loss and non-uniform in heating and distribution and food is burnt while being cooked due to the fact that the hot air system of the existing similar products has large turbulent flow. The air fryer is characterized in that the front portion of one end of a metal heat insulation top cover of the air fryer is bent downwards, a back opening of the other end of the metal heat insulation top cover is integrally connected with the top of a cover opening of a hot air cover, and the cover opening below the hot air cover is integrally connected with the back of a metal heat insulation lining of the metal heat insulation cover. Plate through holes which are distributed at equal intervals are formed in the back of the metal heat insulation lining at the joint; pot through holes which are distributed at equal intervals are formed in one side of the pot body at the fryer assembly in front of the plate through holes of the metal heat insulation lining; the radial heat dissipation fan blades in the heat dissipation channel cover and the radial stirring fan blades in the hot air cover are parallel to each other and are perpendicular to the plane of the cover opening, meanwhile, the radial heat dissipation fan blades and the radial stirring fan blades deviate from the center by 12 mm, and the corresponding metal heat insulation lining plate through holes deviate by 12 mm.

Description

TECHNICAL FIELD

[0001] The utility model relates to air fryer, it is a kind of high-performance air fryer. BACKGROUND

[0002] Air fryer is a kind of new type household appliance using high-speed air circulation technology to food, and the food made by it can reduce 80% oil compared with traditional electric fryer, is easy to clean in daily use, is safe and economical, and is favored by people. The existing air fryer generally adopts top blowing structure design, and other air fryers adopt back blowing structure design, such as the application number 202410837162.4 disclosed in Chinese patent document, the application publication date is August 23, 2024, and the invention name is "back air fryer of air fryer";But these back blowing air fryers are due to the characteristics of centrifugal impeller, fluid is blown in one direction, which leads to uneven energy distribution, and finally makes food unevenly heated. At the same time, due to the fluid to one side, food is unevenly heated, and the problem of one side raw and one side scorched appears. At the same time, such back blowing air fryer has the problem of large energy loss of hot air system, that is, there is large turbulence in the hot air system, which leads to large fluid loss, which is one of the reasons for uneven heating of food cooking. SUMMARY

[0003] To overcome the above shortcomings, the purpose of the utility model is to provide a kind of high-performance air fryer to the field, to solve the technical problems of the hot air system of existing similar products, that is, there is large turbulence in the hot air system, which leads to large fluid loss in the hot air system, uneven heating and distribution, and one side raw and one side scorched in food cooking. Its purpose is realized through the following technical solutions.

[0004] The utility model provides a high -performance air fryer, which is provided with a metal heat shield in the body, the inner diameter of the opening of the body is covered by the metal heat shield to form a hardware heat insulation layer, a radial stirring fan and a radial heat dissipation fan are sequentially arranged in the back of the metal heat shield, and the structure design points of the utility model are that the metal heat shield comprises a metal heat shield top cover and a metal heat shield lining, the front end of the metal heat shield top cover is bent downward, the back end of the other end of the metal heat shield top cover is connected with the top of the opening of the hot air cover, the opening of the hot air cover is connected with the back of the metal heat shield lining, the back of the metal heat shield lining is provided with equidistantly distributed plate through holes, the top of the metal heat shield lining is provided with a guide plate extending forward and punched at the lower part of the cover opening of the metal heat shield top cover, and the side of the fryer assembly at the front part of the plate through hole of the metal heat shield lining is provided with equidistantly distributed pot through holes.

[0005] The front part of the metal heat shield top cover is bent downward and provided with a raised brim, the brim at the opening of the body is provided with an upper through hole of the top cover, the upper through hole of the top cover is aligned with the upper through hole of the fryer in the cover shell of the fryer assembly, the lower through hole of the fryer is aligned with the lower through hole of the body at the bottom of the opening of the body, and the upper and lower through holes of the fryer are arranged on the upper and lower edges of the cover shell at the opening of the body into which the fryer assembly is arranged.

[0006] The back of the guide plate of the metal heat shield lining is provided with a downwardly bent inclined surface at one end, the other end of the guide plate extends forward and arches upward to be located at the fluid parallel section in the upper metal heat shield top cover, the front end of the guide plate is provided with a fixing hole at the downwardly bent edges on both sides, and the guide plate of the metal heat shield lining is fixed to the inner walls on both sides in the upper metal heat shield top cover through the fixing holes.

[0007] The radial heat dissipation fan in the heat dissipation channel cover and the radial stirring fan in the hot air cover are parallel to each other and arranged vertically to the plane of the cover opening, and the radial heat dissipation fan and the radial stirring fan are offset by 12 mm from the center, and the plate through holes in the corresponding metal heat shield lining are offset by 12 mm.

[0008] The heat dissipation channel cover is a one-way flow collecting cover with a worm gear-shaped protrusion on one side of a hot air outlet.

[0009] The hot air cover is internally provided with an impeller groove protruding and formed by stamping towards the back, a heating pipe is arranged in a rectangular square groove formed by stamping above the impeller groove, a top portion of the hot air cover at the square groove on one side of the impeller groove is integrally communicated with a top portion of the hot air cover at the impeller groove below, the top portion of the hot air cover at the communicated position is aligned with a groove on one side of the back of a metal heat insulation top cover, and an external mounting hole of the heating pipe is arranged at an end corner of the square groove of the hot air cover on one side.

[0010] The top portion of the hot air cover is provided with an inserted NTC temperature sensor, and the NTC temperature sensor is connected with a control circuit board through a line.

[0011] The heating pipe is arranged at an outer diameter of a radial stirring air blade or a front portion of the radial stirring air blade in the hot air cover, and the heating pipe is in a circular ring or a square ring.

[0012] The inner pot is arranged in the pot body of the fryer assembly, and an inner through hole on one side of the back of the inner pot is aligned with a pot through hole of the pot body.

[0013] The radial heat dissipation air blade is a plastic cross-flow air blade, and the radial stirring air blade is a multi-leaf radial centrifugal impeller.

[0014] The metal heat insulation cover is integrally connected with the metal heat insulation bottom plate and the metal heat insulation lining to form the metal heat insulation cover with an opening on one side of the fryer assembly.

[0015] The utility model discloses a reasonable structure, convenient production and assembly, wide application range, stable fluid in hot air system, less loss, uniform heating and distribution, especially good cooking effect for potato chips, and is suitable for use as high-performance air fryer and structural improvement of similar products. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the internal structure schematic diagram of the embodiment fryer assembly in the put-in state.

[0017] Figure 2 is Figure 1 the internal structure schematic diagram of the fryer assembly in the take-out state, and the heat dissipation channel cover and the hot air cover are omitted in the back.

[0018] Figure 3 is Figure 2 the right view internal structure schematic diagram.

[0019] Figure 4 is Figure 3is a schematic diagram of the structure of the radial heat dissipation fan blade, wherein the body and the metal heat shield are omitted.

[0020] Figure 5 is Figure 1 a schematic diagram of the sectional structure.

[0021] Figure 6 is Figure 1 a schematic diagram of the explosion structure, wherein the pot assembly is omitted.

[0022] Figure 7 is Figure 6 a schematic diagram of the rear structure of the heat dissipation channel cover.

[0023] Figure 8 is Figure 6 a schematic diagram of the rear structure of the hot air cover.

[0024] Figure 9 is a fluid cloud chart of the food cooking position of the present utility model.

[0025] Figure 10 is a fluid cloud chart of the food cooking position of the existing back air fryer.

[0026] Figure 11 is a fluid flow cloud chart of the top shell of the existing back air fryer.

[0027] Figure 12 is a fluid interface cloud chart in the hot air system of the existing back air fryer.

[0028] Drawing serial number and name: 1, body, 2, pot assembly, 201, pot body, 3, metal heat insulation lining, 301, deflector, 4, heat dissipation channel cover, 5, hot air cover, 6, metal heat insulation top cover, 7, motor, 8, radial stirring fan blade, 9, radial heat dissipation fan blade, 10, heating pipe, 11, NTC temperature sensor, 12, metal heat insulation bottom plate. DETAILED DESCRIPTION

[0029] The structure and use of the present utility model will be further described in combination with the drawings. As shown in Figures 1-12As shown, the air fryer body 1 is provided with a metal heat shield, the inner diameter of the opening of the body is covered by the metal heat shield to form a hardware heat insulation layer, the back of the metal heat shield is provided with a radial stirring fan blade 8 and a radial heat dissipation fan blade 9 in sequence; the metal heat shield includes a metal heat shield top cover 6, a metal heat shield lining 3 and a metal heat shield bottom plate 12, one end of the metal heat shield top cover is bent downward at the front, the other end of the metal heat shield top cover is connected to the top of the opening of the hot air cover 5, the opening below the hot air cover is connected to the back of the metal heat shield lining of the metal heat shield, the back of the metal heat shield lining is provided with equally distributed plate through holes, the top of the metal heat shield lining is provided with a flow guide plate 301 extending forward and punched at the opening below the cover, the one side of the fryer assembly 2 at the front of the plate through hole of the metal heat shield lining is provided with equally distributed pot through holes; the hot air cover inside the back of the metal heat shield lining is provided with a heating pipe 10 and a radial stirring fan blade 8, the radial heat dissipation fan blade 9 is arranged in the heat dissipation channel cover 4 at the back of the hot air cover, the motor shaft at the motor 7 at the back of the heat dissipation channel cover is connected to the radial heat dissipation fan blade in the heat dissipation channel cover and the radial stirring fan blade in the hot air cover, the heating pipe and the motor are connected to the control circuit board through a circuit; the motor is a clockwise rotating motor, the body is provided with an exhaust hole at the hot air outlet of the heat dissipation channel cover, and the center hole of the motor installed in the middle of the heat dissipation channel cover is a cold air inlet. The above-mentioned radial heat dissipation fan blade is a plastic cross-flow fan blade, and the radial stirring fan blade is a multi-leaf radial centrifugal impeller.

[0030] The front of the metal heat shield top cover is bent downward and provided with a raised brim, the top cover through hole at the opening of the body is aligned with the fryer through hole at the cover of the fryer assembly, the fryer lower through hole and the fryer upper through hole are respectively arranged on the upper and lower edges of the cover at the opening of the body into which the fryer assembly is placed. One end of the back of the flow guide plate of the metal heat shield lining below the metal heat shield top cover is provided with an inclined surface bent downward, the other end of the flow guide plate extends forward and arches upward to be located at the fluid parallel section of the upper metal heat shield top cover, the front end of the flow guide plate is provided with fixed holes symmetrically arranged at the two sides of the downward bent edges, and the flow guide plate of the metal heat shield lining is fixed to the inner walls on the two sides of the upper metal heat shield top cover through the fixed holes. The bottom of the metal heat shield lining of the metal heat shield is provided with a metal heat shield bottom plate, the metal heat shield bottom plate, the metal heat shield lining and the metal heat shield top cover are connected to form a metal heat shield with an opening on one side of the fryer assembly.

[0031] The radial heat dissipation fan blades and the radial stirring fan blades in the heat dissipation channel cover are parallel and arranged vertically to the plane at the cover opening, and the radial heat dissipation fan blades and the radial stirring fan blades are offset by 12 mm from the center, and the corresponding metal heat insulation lining plate through hole is offset by 12 mm. The heat dissipation channel cover is a one-way flow cover with a worm gear-shaped protrusion at one side of the heat air outlet. The heat dissipation cover is provided with a impeller groove protruding and formed by stamping at the back. A heating pipe is arranged in the rectangular square groove formed by stamping above the impeller groove. The top of the square groove of the heat dissipation cover is integrally communicated with the top of the lower impeller groove by stamping downward, and the top of the heat dissipation cover is aligned with the one side groove of the metal heat insulation top cover. An external mounting hole of the heating pipe is arranged at the end corner of the square groove of the heat dissipation cover. An NTC temperature sensor is inserted into the top of the heat dissipation cover, and the NTC temperature sensor is connected to the control circuit board through a line. The heating pipe is arranged at the outer diameter of the radial stirring fan blade or the front part of the radial stirring fan blade in the heat dissipation cover, and the heating pipe is in the shape of a circular ring or a square ring.

[0032] In use, food is placed in the pot body of the fryer assembly, and the fryer assembly is placed in the machine body. The screen button above the opening of the machine body where the fryer assembly is located is started. The hot air in the machine body is accelerated through the narrowed part of the front downward bending part of the metal heat insulation top cover after being discharged through the metal heat insulation top cover, and then enters the pot body of the fryer assembly. The hot air is collected from the handle side to the back of the pot body, and then circulates. The heat is discharged from the machine body through the exhaust hole of the one-way flow cover. According to the above structure, an inner pot can also be arranged in the pot body of the fryer assembly, and the inner hole at the back side of the inner pot is aligned with the pot through hole of the pot body.

[0033] In summary, the above-mentioned motor provides rotary power for the impeller and can only rotate clockwise. The radial stirring fan blade mainly transmits energy to food materials through forced convection. The radial heat dissipation fan blade discharges the energy that cannot be absorbed by food into the air fryer, avoiding excessive temperature rise of the whole machine. The temperature of the center point of the cavity is mapped by the NTC temperature sensor, so as to control the temperature of the center point of the cavity. At the same time, the radial stirring fan blade of the hot air system is arranged to be offset by 12 mm from the center, and the corresponding metal heat insulation lining plate through hole as the air inlet is also offset by 12 mm to the left, which improves the fluid intensity of the left product. The heating pipe adopts a ring design to improve the suction of the product and improve the suction of the front fluid, which makes up for the problem of insufficient fluid intensity of the blown fluid. The front bending design of the metal heat insulation top cover cooperates with the flow collecting structure of the metal heat insulation lining guide plate to prevent large diameter turbulence and reduce fluid loss.

Claims

1. A high-performance air fryer, wherein a metal heat shield is arranged in the body (1) of the air fryer, the inner diameter of the opening on one side of the body is covered by the metal heat shield to form a hardware heat insulation layer, and a radial stirring fan (8) and a radial heat dissipation fan (9) are arranged in the back of the metal heat shield in sequence; characterized in that The metal heat shield comprises a metal heat shield top cover (6) and a metal heat shield inner liner (3), the metal heat shield top cover at the top of the metal heat shield is bent downward at the front end of one end, the other end of the metal heat shield top cover is opened at the back and is connected to the top of the cover opening of the hot air cover (5) as a whole, the cover opening below the hot air cover is connected to the back of the metal heat shield inner liner of the metal heat shield as a whole at the connecting position, the back of the metal heat shield inner liner at the connecting position is provided with equally distributed plate through holes, the top of the metal heat shield inner liner below the cover opening of the metal heat shield top cover is provided with a flow guide plate (301) which is extended to the front part and is formed by stamping, and the side of the pot body (201) of the fryer assembly (2) at the front part of the plate through hole of the metal heat shield inner liner is provided with equally distributed pot through holes.

2. A high performance air fryer according to claim 1 characterised in that The back of the metal heat shield inner liner is provided with a heating pipe (10) and a radial stirring fan blade (8) inside the hot air cover, the radial heat dissipation fan blade (9) is arranged inside the heat dissipation channel cover (4) at the back of the heat dissipation channel cover, the motor shaft at the motor (7) at the back of the heat dissipation channel cover is connected to the radial heat dissipation fan blade inside the heat dissipation channel cover and the radial stirring fan blade inside the hot air cover at the same time, and the heating pipe and the motor are connected to the control circuit board through a circuit.

3. The high performance air fryer of claim 1, wherein The front part of the metal heat shield top cover (6) is provided with a raised brim at the bent downward position, the brim at the opening of the machine body is provided with an upper cover through hole, the upper cover through hole is aligned and communicated with the upper fryer through hole of the cover shell of the fryer assembly (2), the lower fryer through hole of the cover shell of the fryer assembly is aligned and communicated with the lower machine body through hole at the bottom of the opening of the machine body, and the lower fryer through hole and the upper fryer through hole are respectively arranged on the upper and lower edges of the cover shell at the opening of the machine body.

4. The high performance air fryer of claim 1, wherein The back end of the flow guide plate (301) of the metal heat shield inner liner (3) below the metal heat shield top cover (6) is provided with a downwardly bent inclined surface, the other end of the flow guide plate is extended forward and arched upward to be located at the fluid parallel section inside the upper metal heat shield top cover (6), the front end of the flow guide plate is provided with a fixed hole at each of the two downwardly bent side ears, and the flow guide plate of the metal heat shield inner liner is fixed to the inner walls on the two sides inside the upper metal heat shield top cover through the fixed holes.

5. The high performance air fryer of claim 1, wherein The radial heat dissipation fan blade (9) inside the heat dissipation channel cover (4) and the radial stirring fan blade (8) inside the hot air cover (5) are parallel and arranged vertically to the plane at the cover opening position, and the radial heat dissipation fan blade and the radial stirring fan blade are offset by 12 mm from the center, and the plate through hole of the metal heat shield inner liner (3) is offset by 12 mm correspondingly.

6. The high performance air fryer of claim 1, wherein The heat dissipation channel cover (4) is a one-way current collecting cover with a hot air outlet provided with a worm gear-shaped protrusion on one side. The hot air cover (5) is provided with an impeller groove which is protruded and formed by stamping at the back of the middle part, the heating pipe (10) is arranged in the rectangular square groove which is formed by stamping above the impeller groove, the top of the square groove of the hot air cover is integrally communicated with the top of the impeller groove below by stamping downward, the top of the hot air cover at the communicated position is aligned with the groove opening at one side of the back of the metal heat shield top cover (6), and the end corner of the square groove at one side of the impeller groove of the hot air cover is provided with a heating pipe external mounting hole.

7. The high performance air fryer of claim 1, wherein The top of the hot air cover (5) is provided with an inserted NTC temperature sensor (11) connected with a control circuit board through a line.

8. The high performance air fryer of claim 1, wherein The heating pipe (10) is arranged at the outer diameter of the radial stirring fan blade (8) or the front part of the radial stirring fan blade in the hot air cover (5), and the heating pipe is in a circular ring or a square ring.

9. The high performance air fryer of claim 1, wherein The radial heat dissipation fan blade (9) is a plastic cross-flow fan blade, and the radial stirring fan blade (8) is a multi-leaf radial centrifugal impeller.

10. The high performance air fryer of claim 1, wherein The bottom of the metal heat insulation lining (3) of the metal heat insulation cover is provided with a metal heat insulation bottom plate (12), the metal heat insulation bottom plate, the metal heat insulation lining and the metal heat insulation top cover (6) are integrated to form the metal heat insulation cover with an open side of the fryer assembly (2).

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