Internal temperature control method for air fryer

Abstract

The invention relates to the technical field of cooking utensils, and discloses an air fryer internal temperature control method, which comprises the following steps of: dividing a baking tray at the bottom in a frying barrel of an air fryer into a plurality of temperature zones; the baking tray is suitable for placing food materials to be cooked; a temperature sensor is arranged in each temperature zone; when the temperature sensor detects that the temperature difference value of the different temperature areas exceeds a set value, the blowing direction of hot air is changed through an air guide assembly arranged in an air duct on the top face in the air fryer, the temperature between the different temperature areas is balanced, and hot air is blown to different areas of cooking food materials. According to the technical scheme, the baking uniformity of the food materials is improved by monitoring the temperatures of different temperature zones in real time and changing the blowing direction of hot air in good time, so that the baking temperatures of the centers and the edges of the food materials are balanced, and the cooking effect of the food materials is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking appliances, and particularly to a method for controlling the internal temperature of an air fryer. Background Art

[0002] An air fryer is a cooking appliance that mainly relies on rapidly circulating hot air inside to heat and bake food ingredients. It mainly uses hot air to replace hot oil to quickly cook the ingredients. At the same time, the hot air also blows away the moisture on the surface of the ingredients, making the ingredients achieve an effect similar to frying; it can be understood as "frying" food with high-temperature air. The air fryer has the advantage of high efficiency. Usually, a delicious dish can be obtained in about 15 minutes, saving time and resources and meeting the needs of people in modern fast-paced life. Since the air fryer uses high temperature to absorb the oil and moisture in the ingredients themselves during operation, compared with ordinary "fried foods", the ingredients cooked by the air fryer are less oily or oil-free, which can reduce the intake of lipid substances by consumers and is relatively healthier.

[0003] However, existing air fryers generally use centrifugal air blades, and the air duct circulation is fixed, resulting in poor uniformity of baking the ingredients, seriously affecting the cooking effect of the ingredients. Summary of the Invention

[0004] In view of this, the present invention provides a method for controlling the internal temperature of an air fryer to solve the problem that existing air fryers generally use centrifugal air blades, the air duct circulation is fixed, resulting in poor uniformity of baking the ingredients and seriously affecting the cooking effect of the ingredients.

[0005] The present invention provides a method for controlling the internal temperature of an air fryer, including:

[0006] Dividing and setting a plurality of temperature zones on the baking tray at the inner bottom of the frying barrel of the air fryer; the baking tray is suitable for placing the food ingredients to be cooked;

[0007] A temperature sensor is respectively arranged in each temperature zone;

[0008] When the temperature difference detected by the temperature sensor in different temperature zones exceeds the set value, the air guiding component arranged in the air duct on the inner top surface of the air fryer is used to change the blowing direction of the hot air, balance the temperature between different temperature zones, and blow the hot air to different areas of the cooking ingredients. Beneficial effects: By adopting the above technical solutions, the present application improves the uniformity of baking the ingredients by monitoring the temperature of different temperature zones in real time and changing the blowing direction of the hot air in a timely manner, so that the baking temperatures of the center and edge of the ingredients reach balance, ensuring the cooking effect of the ingredients.

[0009] Optionally, the temperature zones at least include: a first temperature zone and a second temperature zone; when the temperature of the first temperature zone is higher than that of the second temperature zone by the set value, the air guiding component blows the hot air to the second temperature zone.

[0010] Optionally, the set value does not exceed 10 degrees Celsius.

[0011] Optionally, the set value does not exceed 2 degrees Celsius.

[0012] Optionally, the air guiding assembly includes:

[0013] A bottom plate, forming the bottom surface of the air duct;

[0014] At least one air guiding plate arranged at intervals along the air duct direction, one end of the air guiding plate is rotatably connected to the edge of a slot provided on the bottom plate; a slider is convexly provided on the other end of the air guiding plate towards the outer side;

[0015] A plate member, the bottom surface of which is slidably connected to the top surface of the bottom plate, a chute slidably connected to the slider is provided on the plate member in the vertical direction; a rack structure is provided on the top surface of the plate member;

[0016] A gear, meshing with the rack structure;

[0017] A power member, connected to the gear, and the power member is adapted to drive the gear to rotate;

[0018] The air guiding assembly is adapted to drive the plate member to slide on the bottom plate when the gear rotates, thereby driving the slider to slide in the chute, and finally driving the air guiding plate to rotate, so as to change the blowing direction of the hot air. Beneficial effects: By adopting the above technical solution in this application, the angle of the air guiding plate is adjusted in a timely manner through the specific structure of the air guiding assembly to change the hot air blowing direction. For the position where the food ingredients are not fully baked, the angle of the air guiding plate can be adjusted to divert and concentrate the hot air flow to heat the food ingredients at this position, improving the baking uniformity.

[0019] Optionally, the number of temperature zones is three, namely the third temperature zone, the second temperature zone and the first temperature zone arranged along the hot air flow direction in the air duct;

[0020] When the temperature of the first temperature zone is more than 10 degrees Celsius higher than the temperature of the third temperature zone, the angle of the air guiding plate is not less than 120 degrees;

[0021] When the temperature of the first temperature zone is more than 10 degrees Celsius lower than the temperature of the third temperature zone, the angle of the air guiding plate is not more than 60 degrees.

[0022] Optionally, hot air is blown into the air duct through a hot air supply structure.

[0023] Optionally, the hot air supply structure includes:

[0024] A cross-flow fan is adapted to supply flowing air into an air duct. All the hot air flowing through the cooking ingredients flows back to the cross-flow fan through a return air opening, or part of the hot air flowing through the cooking ingredients flows back to the cross-flow fan through the return air opening, and the other part of the hot air is discharged to the outside of the air fryer.

[0025] A heating tube is disposed in the air duct. The heating tube is adapted to heat the flowing air to form hot air. Beneficial effects: By adopting the above technical solution in this application, the cross-flow fan forms an air fluid through high-speed rotation. After the air fluid passes through the heating tube, the temperature rises to form high-temperature flowing air to uniformly heat the ingredients.

[0026] Optionally, the temperature sensor is a thermistor probe sensor.

[0027] Optionally, the number of the frying barrels is multiple. Each frying barrel is respectively located in a different cooking cavity. The structures in all the frying barrels are the same. All the frying barrels share the hot air, and all the frying barrels respectively change the blowing direction of the hot air in a timely manner through a wind guiding assembly. Description of the Drawings

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is a schematic cross-sectional structure diagram of an air fryer provided in an embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of air flow of an air fryer provided in an embodiment of the present invention;

[0031] Figure 3 It is a schematic three-dimensional structure diagram of a wind guiding assembly provided in an embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the movement principle of a wind guiding assembly provided in an embodiment of the present invention;

[0033] Figure 5 It is a schematic diagram of the temperature zone setting of an air fryer provided in an embodiment of the present invention;

[0034] Figure 6 It is a schematic diagram of the angle of a wind guiding plate provided in an embodiment of the present invention.

[0035] Description of the Reference Numerals:

[0036] 1. Frying barrel; 2. Baking tray; 3. Bottom plate; 4. Air deflector; 5. Plate member; 6. Gear; 7. Power member; 8. Cross-flow fan; 9. Return air opening; 10. Reflector; 11. Heat insulation plate; 12. Support plate; 13. Air outlet; 14. Volute; 15. Impeller; 16. Return air duct; 17. Slide groove; 18. First temperature zone; 19. Second temperature zone; 20. Third temperature zone. Specific embodiments

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] As Figures 1 to 6 shown, a specific embodiment of the internal temperature control method of the air fryer includes the following steps:

[0039] S1. Divide and set a plurality of temperature zones on the baking tray 2 at the inner bottom of the frying barrel 1 of the air fryer; the baking tray 2 is suitable for placing the ingredients to be cooked.

[0040] S2. A temperature sensor is respectively arranged in each temperature zone. The temperature sensor can be arranged at the bottom of the frying barrel 1.

[0041] S3. When the temperature difference detected by the temperature sensor in different temperature zones exceeds the set value, the air deflector assembly arranged in the top air duct inside the air fryer is used to change the blowing direction of the hot air, balance the temperature between different temperature zones, and blow hot air to different areas of the cooking ingredients.

[0042] Specifically, as Figure 5 shown, the temperature zones at least include: a first temperature zone 18 and a second temperature zone 19; when the temperature of the first temperature zone 18 is higher than that of the second temperature zone 19 by the set value, the air deflector assembly blows the hot air to the second temperature zone 19.

[0043] Further, the set value does not exceed 10 degrees Celsius; furthermore, the set value does not exceed 2 degrees Celsius.

[0044] Specifically, as Figure 3 and Figure 4 shown, the air deflector assembly includes: a bottom plate 3, at least one air deflector 4 arranged at intervals along the air duct direction, a plate member 5, a gear 6 and a power member 7. The power member 7 can be arranged on the inner top surface of the air fryer, and specifically can be a motor. The plate member 5 is arranged vertically.

[0045] The bottom plate 3 forms the bottom surface of the air duct, and the reflector 10 forms the top surface of the air duct. The top of the air fryer is provided with a heat insulation plate 11, heat insulation blocks are provided on the outer sides of the four sides of the air fryer, and a support plate 12 is provided at the bottom of the air fryer. One end of the air guide plate 4 is rotatably connected to the edge of the slot provided on the bottom plate 3; it can be that one end of the air guide plate 4 is rotatably connected to the bottom plate 3 through a hinge. A slider protrudes outward from the outer side of the other end of the air guide plate 4. The bottom surface of the plate member 5 is slidably connected to the top surface of the bottom plate 3, and a chute 17 for slidably connecting with the slider is provided on the plate member 5 in the vertical direction; a rack structure is provided on the top surface of the plate member 5. The gear 6 meshes with the rack structure. The power member 7 is connected to the gear 6, and the power member 7 is adapted to drive the gear 6 to rotate. The air guide assembly is adapted to drive the plate member 5 to slide on the bottom plate 3 when the gear 6 rotates, thereby driving the slider to slide in the chute 17, and finally driving the air guide plate 4 to rotate to change the blowing direction of the hot air. The hot air in the air duct blows into the frying barrel 1 through the slot on the bottom plate 3. That is, the rotation of the gear 6 drives the horizontal displacement of the plate member 5, and then the horizontal displacement is converted into the angular displacement of the air guide plate 4 by combining the chute 17 and the slider. Figure 4 The upper arrow in the middle indicates the rotation direction of the power member 7, the arrow on the right side indicates the movement direction of the plate member 5, the arrow near the chute 17 indicates the movement direction of the chute 17, and the arrow near the air guide plate 4 indicates the movement direction of the air guide plate 4.

[0046] Further, as Figure 5 and Figure 6 shown, the number of temperature zones is three, namely the third temperature zone 20, the second temperature zone 19, and the first temperature zone 18 arranged along the flow direction of the hot air in the air duct.

[0047] When the temperature of the first temperature zone 18 is more than 10 degrees Celsius higher than the temperature of the third temperature zone 20, it indicates that the heat convection in the third temperature zone 20 is less, and the angle of the air guide plate 4 is adjusted by the motor, and the angle of the air guide plate 4 is not less than 120 degrees. Further, the greater the temperature difference between the first temperature zone 18 and the third temperature zone 20, the greater the angle of the air guide plate 4.

[0048] When the temperature of the first temperature zone 18 is more than 10 degrees Celsius lower than the temperature of the third temperature zone 20, it indicates that the heat convection in the first temperature zone 18 is less, and the angle of the air guide plate 4 is adjusted by the motor, and the angle of the air guide plate 4 is not greater than 60 degrees. Further, the greater the temperature difference between the first temperature zone 18 and the third temperature zone 20, the smaller the angle of the air guide plate 4. Figure 6 The state where the angle of the air guide plate 4 is 20 degrees is shown. When the angle of the air guide plate 4 is 0 degrees, the air guide plate 4 closes the slot on the bottom plate 3.

[0049] When the temperature difference between the first temperature zone 18 and the third temperature zone 20 is within 10 degrees Celsius, it indicates that the heat distribution in the frying barrel 1 is relatively uniform.

[0050] Specifically, hot air is blown into the air duct through the hot air supply structure.

[0051] As Figure 1 and Figure 2 shown, the hot air supply structure includes: a cross-flow fan 8 and a heating tube. The cross-flow fan 8 is adapted to supply flowing air into the air duct. All the hot air flowing through the cooking ingredients returns to the cross-flow fan 8 through the air return port 9 and the air return cylinder 16, or part of the hot air flowing through the cooking ingredients returns to the cross-flow fan 8 through the air return port 9 and the air return cylinder 16, and the other part of the hot air is discharged to the outside of the air fryer. The heating tube is arranged in the air duct, and the heating tube is adapted to heat the flowing air to form hot air. Figure 2 The arrows in

[0052] Specifically, the temperature sensor is a thermistor probe sensor.

[0053] Further, the number of the frying barrels 1 is multiple, each frying barrel 1 is respectively located in a different cooking cavity, the structures in all the frying barrels 1 are the same, all the frying barrels 1 share the hot air, and all the frying barrels 1 respectively change the blowing direction of the hot air in a timely manner through the air guiding assembly.

[0054] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A method for controlling the internal temperature of an air fryer, characterized in that: include: A plurality of temperature zones are divided and arranged on a baking tray (2) at the bottom of a frying barrel (1) of the air fryer; The baking tray (2) is suitable for placing ingredients to be cooked; A temperature sensor is provided in each temperature zone; When the temperature sensor detects that the temperature difference between different temperature zones exceeds the set value, the air guide component arranged in the air duct on the top surface inside the air fryer is used to change the blowing direction of the hot air, balance the temperatures between different temperature zones, and blow hot air to different areas of the cooking ingredients.

2. The method for controlling the internal temperature of an air fryer according to claim 1, characterized in that: The temperature zones at least include: a first temperature zone (18) and a second temperature zone (19); when the temperature of the first temperature zone (18) is higher than the temperature of the second temperature zone (19) and reaches a set value, the air guide component blows hot air toward the second temperature zone (19).

3. The method for controlling the internal temperature of an air fryer according to claim 2, characterized in that: The set value does not exceed 10 degrees Celsius.

4. The method for controlling the internal temperature of an air fryer according to claim 3, characterized in that: The set point does not exceed 2 degrees Celsius.

5. The method for controlling the internal temperature of an air fryer according to any one of claims 1 to 4, characterized in that: The air guide assembly comprises: A bottom plate (3) forming the bottom surface of the air duct; At least one wind guide plate (4) is arranged at intervals along the direction of the air duct, one end of the wind guide plate (4) is rotatably connected to the edge of the slot provided on the bottom plate (3); a slider is provided on the other end of the wind guide plate (4) protruding outwardly; A plate member (5) has a bottom surface slidably connected to the top surface of the bottom plate (3); a sliding groove (17) slidably connected to the sliding block is provided on the plate member (5) in a vertical direction; and a rack structure is provided on the top surface of the plate member (5); a gear (6) meshing with the rack structure; A power member (7) connected to the gear (6), the power member (7) being adapted to drive the gear (6) to rotate; The air guide assembly is suitable for driving the plate (5) to slide on the bottom plate (3) when the gear (6) rotates, thereby driving the slider to slide in the slide groove (17), and finally driving the air guide plate (4) to rotate to change the blowing direction of the hot air.

6. The method for controlling the internal temperature of an air fryer according to claim 5, characterized in that: The number of the temperature zones is three, namely a third temperature zone (20), a second temperature zone (19) and a first temperature zone (18) arranged along the hot air flow direction in the air duct; When the temperature of the first temperature zone (18) is greater than the temperature of the third temperature zone (20) by more than 10 degrees Celsius, the angle of the air guide plate (4) is not less than 120 degrees; When the temperature of the first temperature zone (18) is lower than the temperature of the third temperature zone (20) by more than 10 degrees Celsius, the angle of the air guide plate (4) is no greater than 60 degrees.

7. The method for controlling the internal temperature of an air fryer according to claim 5, characterized in that: The hot air is blown into the air duct through the hot air supply structure.

8. The method for controlling the internal temperature of an air fryer according to claim 7, characterized in that: The hot air supply structure comprises: The cross-flow fan (8) is adapted to provide flowing air into the air duct, so that all the hot air flowing through the cooking food is returned to the cross-flow fan (8) through the return air port (9), or part of the hot air flowing through the cooking food is returned to the cross-flow fan (8) through the return air port (9), and the other part of the hot air is discharged to the outside of the air fryer; The heating pipe is arranged in the air duct, and the heating pipe is suitable for heating the flowing air to form hot air.

9. The method for controlling the internal temperature of an air fryer according to any one of claims 1 to 4, characterized in that: The temperature sensor is a thermistor probe sensor.

10. The method for controlling the internal temperature of an air fryer according to any one of claims 1 to 4, characterized in that: There are a plurality of frying barrels (1), each frying barrel (1) is located in a different cooking cavity, the structures inside all frying barrels (1) are the same, all frying barrels (1) share hot air, and all frying barrels (1) change the blowing direction of the hot air in a timely manner through air guide components.

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