Air duct switching method for air fryer

Abstract

The invention relates to the technical field of air fryer cooking control, in particular to an air duct switching method for an air fryer, which comprises the following steps: S1, identifying a placement state, S2, detecting the state of a partition plate, S3, controlling air duct switching, S4, carrying out thermal cycle heating, and S5, carrying out temperature feedback regulation. According to the air duct switching method for the air fryer, the vertical / horizontal state is judged through the inclination angle, the insertion / extraction state of the partition plate is detected through the trigger signal, the control system issues an instruction according to the two states, the air duct switching component is driven to change the hot air conduction path, and the rotating speed of the fan or secondary air duct switching is dynamically adjusted in combination with temperature sensing data. And the device is adaptive to different cavity forms and placement modes. The defects that a traditional air fryer is fixed in air duct, poor in adaptability, uneven in cooking of large-size food materials and low in heating efficiency are overcome, intelligent air duct adaptation is achieved, heating uniformity is improved, the cooking efficiency is improved, and the air fryer is suitable for air fryer cooking scenes with different placement states and different cavity specifications.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air fryer cooking control, and in particular to an air fryer air duct switching method. BACKGROUND

[0002] With the expansion of the application scenarios of air fryers, the traditional products have the following core technical defects: 1. Fixed air duct, poor adaptability: the traditional air fryer air duct is fixedly designed, and is only suitable for vertical placement. When cooking large-size food (such as 10-inch pizza and whole chicken) in a horizontal placement manner, the hot air circulation path is unreasonable, the heating is uneven, and the local food is not cooked through or burnt; 2. Cavity state and air duct do not match: although the double-pot or detachable baffle design can adjust the cavity volume, the air duct is not switched synchronously. When the single-integrated cavity is used, the original double-cavity air duct is still used, resulting in insufficient heating of the middle food; 3. Low heating efficiency: lacking temperature feedback and air duct linkage adjustment, when the temperature in the cavity does not reach the preset value, only the fan speed is simply increased, and vortex heating is not formed through air duct optimization, resulting in high energy consumption and low efficiency; 4. Poor operation visibility: the display panel angle is fixed, and it is difficult for the user to view the running state and operation setting when placed horizontally.

[0003] To solve the above problems, the present application provides an air fryer air duct switching method. SUMMARY

[0004] The main purpose of the present application is to provide an air fryer air duct switching method, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows: An air fryer air duct switching method, comprising the following steps: S1: placement state recognition, the current vertical placement or horizontal placement state is determined by detecting the inclination angle of the air fryer; S2: baffle state detection, the detachable baffle is determined to be inserted into place or pulled out of state by triggering a signal, and then the cooking cavity is determined to be a double-independent cavity or a single-integrated cavity; S3: air duct switching control, the control system issues a driving instruction according to the placement state of step S1 and the cavity state of step S2, drives the air duct switching component to act through a motor drive transmission mode, and changes the hot air conduction path; S4: heat circulation heating, the fan extracts the air in the cooking cavity, which is heated by the heating element, and then circulates the food along the switched conduction path, and the gasification moisture generated during cooking is discharged through a preset exhaust path; S5: Temperature feedback adjustment, real-time collection of cooking cavity temperature data, dynamic adjustment of fan speed or re-triggering of air duct switching to ensure that the temperature reaches the preset cooking requirements.

[0006] Preferably, in S1, the determination criterion for the placement state recognition is: when the inclination angle is ≤15°, it is determined as vertical placement, and when the inclination angle is ≥75°, it is determined as flat placement.

[0007] Preferably, in S2, the trigger logic for the partition state detection is: when the partition is inserted in place, a locking signal is triggered, and it is determined as double independent cavities; when the partition is pulled out, a reset signal is triggered, and it is determined as a single integrated cavity.

[0008] Preferably, in S3, the motor drive transmission mode is any of the following: the motor drives the transmission structure to drive the air duct switching component to flip, or the motor drives the linear transmission structure to drive the air duct switching component to flip, or the motor drives the closed-loop transmission structure to drive the air duct switching component to flip.

[0009] Preferably, in S3, the specific logic of air duct switching is: when placed vertically, the top hot air path is defaulted to be turned on; when placed flat, the top plate preset groove hot air path is turned on; when it is a single integrated cavity, the side wall hot air path can be additionally turned on.

[0010] Preferably, in S5, the specific logic of temperature feedback adjustment is: if the target cooking temperature (200°C) is not reached within a certain time, first increase the fan speed; if it still does not meet the standard, trigger the secondary air duct switching to enable the auxiliary hot air path to form a vortex heating.

[0011] Preferably, when step S1 determines vertical placement and step S2 determines a single integrated cavity, the air duct switching logic of step S3 is: simultaneously turning on the corresponding side wall hot air paths on both sides to make the high-temperature airflow circulate from both sides to the middle of the cavity, forming a surrounding heating.

[0012] Preferably, when step S1 determines flat placement, the air duct switching logic of step S3 is: preferentially turning on the top plate preset groove hot air path to make the high-temperature airflow evenly cover the surface of the food material along the top plate, adapting to the cooking of large-size food materials.

[0013] Preferably, S2 further includes a partition mistake insertion judgment step: by detecting the size matching relationship of the partition on both sides, it is determined whether there is a reverse insertion, and if a mismatch is detected, an alarm signal is triggered to prohibit the device from starting.

[0014] Preferably, it further includes a display adaptation step: automatically adjusting the folding angle of the display panel according to the placement state of step S1, adjusting to 0°-30° when placed vertically, and adjusting to 60°-90° when placed flat, to ensure user visual operation.

[0015] Compared with the prior art, the present application has the following beneficial effects: 1. Strong intelligent adaptability: automatically identifies the placement state and the cavity state, dynamically switches the air duct path, adapts to the cooking requirements of 4-inch small food materials to 10-inch large food materials, and solves the defects of the traditional method of "one air duct used to the end"; 2. Improved heating uniformity: single integrated cavity adopts a surrounding type or a groove air duct, and a top plate covering type air duct when placed horizontally, the heating area of the food material is increased, and the heating uniformity is improved; 3. High cooking efficiency: temperature feedback, air duct switching, and fan speed linkage adjustment, shortening of the warming-up time, reduction of energy consumption, and avoidance of invalid heating; convenient operation: the display panel automatically adapts to the angle according to the placement state, without manual adjustment, and the error-proof insertion design of the partition plate reduces the operation threshold; 4. Good compatibility: the method logic can be embedded into the existing air fryer control system without adding new hardware, only the control program needs to be optimized, and it is easy to apply on a large scale. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The present application is an air fryer air duct switching method, and the overall method flowchart is as follows: Figure 2 The present application is an air fryer air duct switching method, and the placement state recognition schematic diagram is as follows: Figure 3 The present application is an air fryer air duct switching method, and the air duct switching logic relationship diagram is as follows: Figure 4 The present application is an air fryer air duct switching method, and the temperature feedback adjustment flowchart is as follows. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, the present application is further described below in combination with the drawings and specific embodiments.

[0018] As shown in the drawings, Figures 1-4 The present application is an air fryer air duct switching method, and the overall method flowchart is as follows: S1: placement state recognition, determine whether the current is vertical placement or horizontal placement by detecting the inclination angle of the air fryer; the determination standard of the placement state recognition is: when the inclination angle is less than or equal to 15°, it is determined as vertical placement, and when the inclination angle is greater than or equal to 75°, it is determined as horizontal placement; S2: partition plate state detection, determine whether the detachable partition plate is inserted into place or pulled out by triggering a signal, and then determine whether the cooking cavity is a double independent cavity or a single integrated cavity; the trigger logic of the partition plate state detection is: when the partition plate is inserted into place, a locking signal is triggered, and it is determined as a double independent cavity; when the partition plate is pulled out, a reset signal is triggered, and it is determined as a single integrated cavity; It also includes a partition error insertion judgment step: by detecting the size matching relationship on both sides of the partition, it is determined whether there is a reversed insertion, and if a mismatch is detected, an alarm signal is triggered to prohibit the device from starting.

[0019] S3: air duct switching control, the control system issues a driving instruction according to the placement state of step S1 and the cavity state of step S2, drives the air duct switching component to act through a motor-driven transmission mode, and changes the hot air conduction path; the motor-driven transmission mode is any one of the following: the motor drives a transmission structure to drive the air duct switching component to flip, or the motor drives a linear transmission structure to drive the air duct switching component to flip, or the motor drives a closed-loop transmission structure to drive the air duct switching component to flip; the specific logic of air duct switching is: when placed vertically, the top hot air path is defaulted to be conducted; when placed horizontally, the top plate preset groove hot air path is conducted; when a single integrated cavity is used, the sidewall hot air path can be additionally conducted; S4: heat cycle heating, the fan extracts the air in the cooking cavity, heats it through the heating element, and then conducts the heated air along the switched conduction path to heat the food, and the gasification moisture generated during cooking is discharged through the preset exhaust path; S5: temperature feedback adjustment, real-time collection of cooking cavity temperature data, dynamic adjustment of fan speed or re-triggering of air duct switching to ensure that the temperature reaches the preset cooking requirement; the specific logic of temperature feedback adjustment is: if the target cooking temperature is not reached within a set time, first increase the fan speed; if it still does not meet the standard, trigger secondary air duct switching and enable the auxiliary hot air path to form a vortex heating.

[0020] When step S1 determines that it is placed vertically and step S2 determines that it is a single integrated cavity, the air duct switching logic of step S3 is to conduct the corresponding sidewall hot air paths on both sides at the same time, so that the high-temperature airflow circulates from both sides to the middle of the cavity, forming a surrounding heating; when step S1 determines that it is placed horizontally, the air duct switching logic of step S3 is to preferentially conduct the top plate preset groove hot air path, so that the high-temperature airflow uniformly covers the surface of the food along the top plate, adapting to the cooking of large-size food.

[0021] It also includes a display adaptation step: automatically adjusting the folding angle of the display panel according to the placement state of step S1, adjusting to 0°-30° when placed vertically, and adjusting to 60°-90° when placed horizontally, to ensure that the user can visually operate.

[0022] Specifically, the air duct switching method for the air fryer has the core logic of "double-state recognition→intelligent air duct switching→heat cycle heating→closed-loop temperature regulation", and the specific technical solutions are as follows: (I) Core steps of the method The air duct switching method includes the following steps: Step S1: placement state recognition An inclination sensor is used to detect the inclination angle of the air fryer, and a determination threshold is set: when the inclination angle is ≤15°, it is determined to be a vertical placement state; when the inclination angle is ≥75°, it is determined to be a flat placement state. The sensor transmits the placement state signal (vertical signal / flat signal) to the control system in real time.

[0023] Step S2: partition state detection The state of the detachable partition is detected through the trigger signal of the cooking cavity side wall: when the partition is inserted in place, the lock signal is triggered, and the control system determines that it is a double independent cavity; when the partition is pulled out, the reset signal is triggered, and it is determined to be a single integrated cavity; Add partition mistake insertion determination logic: detect the size matching signal of both sides of the partition, if the signal is not matched (determined to be a flip insertion mistake), the control system triggers an alarm signal, and the device is prohibited from starting until the partition is correctly inserted or pulled out.

[0024] Step S3: air duct switching control The control system receives the placement state signal of S1 and the cavity state signal of S2, and issues driving instructions according to the preset logic: Logic 1 (vertical placement + double independent cavity): drive the air duct switching component to conduct the top hot air path, and the double cavities are independently circulated and heated; Logic 2 (vertical placement + single integrated cavity): drive the air duct switching component to conduct the top path and the two side wall paths at the same time, forming a surrounding heat circulation; Logic 3 (flat + single integrated cavity): drive the air duct switching component to conduct the top plate preset groove path, and the hot air uniformly covers the surface of the food material along the top plate; Driving mode: drive the air duct switching component to act (such as flip) through the motor driving mode, which includes gear meshing driving, linear transmission driving or closed loop transmission driving, only changes the hot air conduction path, and does not change the core function of the heating element and the fan.

[0025] Step S4: heat circulation heating The fan starts, and the air in the cooking cavity is heated by the heating element and then delivered to the cooking cavity along the air duct path switched in S3; After the hot air fully contacts the food material, it carries the vaporized moisture out through the preset exhaust path, forming a closed loop heat circulation.

[0026] Step S5: temperature feedback adjustment The temperature sensing element in the cooking cavity collects temperature data in real time and transmits it to the control system; Set the temperature threshold: the target cooking temperature is 200°C, and the set standard time is 5 minutes; Adjustment logic: If 200℃ is not reached within 5 minutes, first increase fan speed (speed increase range is 20%-50% of original speed); if the temperature still does not reach the standard after increasing the speed, trigger secondary air duct switching, use the auxiliary path (such as the side wall path) to form a vortex to heat, until the temperature reaches the standard; During cooking, the temperature is continuously monitored, and the fan speed is dynamically adjusted to maintain the temperature within the target value ±5℃ range.

[0027] Step S6: Display adjustment The control system automatically adjusts the folding angle of the display panel according to the placement state of S1: When placed vertically, the folding angle is adjusted to 0°-30° (default angle, for easy front view); When placed horizontally, the folding angle is adjusted to 60°-90° (adapt to the viewing angle after horizontal placement, to avoid users bending over to view); After adjusting the angle of the display panel, the limiting mechanism keeps it stable without shaking or returning.

[0028] (II) Core control logic Signal priority: The placement state signal is a first-level signal, and the partition state signal is a second-level signal. First, determine the basic air duct path according to the placement state, and then optimize the path according to the cavity state; Air duct switching time: Trigger the first air duct switching when the device starts; if the cavity state changes (partition is pulled out / plugged in) during cooking, trigger the second air duct switching in real time; Alarm logic: In addition to the partition misplug alarm, if the air duct switching component does not act according to the instructions (the switching to position signal cannot be detected), the control system triggers a fault alarm, stops heating, and prompts the user to troubleshoot.

[0029] Example 1: Vertical placement + partition pull-out (single integrated cavity) 1. Implementation conditions The air fryer is placed vertically at an angle of 10° (≤15°); The partition is pulled out, and the micro switch is reset, indicating a single integrated cavity; The target cooking temperature is 200℃, and the cooking material is a whole chicken (large size material).

[0030] 2. Method execution process S1: Placement state recognition: The tilt angle sensor detects a tilt angle of 10° and sends a "vertical placement signal" to the control system; S2: Partition state detection: The micro switch is reset, sending a "single integrated cavity signal", and no misplug alarm is detected when the partition size matches; S3: Air duct switching control: The control system issues instructions, adopts gear meshing driving mode, drives the air duct switching component to conduct the top air duct + two side wall air ducts, forming a surrounding path; S4: Thermal cycle heating: The fan starts (initial speed 1500 r / min), extracts air, heats it to 200°C through the heating element, and transports it along the top + two side air ducts. The hot air circulates around the whole chicken, and the water vapor is discharged through the exhaust hole; S5: Temperature feedback adjustment: The temperature detected by the temperature sensing element is 185°C after 5 minutes (not up to standard), the control system first increases the fan speed to 2000 r / min; 1 minute later, the temperature rises to 195°C, still not up to standard, triggering secondary air duct switching, increasing the conduction strength of the side wall air duct, forming a vortex; After another 1 minute, the temperature rises to 200°C, and the speed is maintained stable; S6: Display adaptation adjustment: The display panel folding angle is adjusted to 20°, which is convenient for users to view the cooking time and temperature from the front.

[0031] Example 2: Flat + spacer plate extraction (single integrated cavity) 1. Implementation conditions The air fryer inclination angle is 80° (≥75°), which is determined to be flat; The spacer plate is extracted, and it is determined to be a single integrated cavity; The target cooking temperature is 200°C, and the cooking material is a 10-inch pizza.

[0032] 2. Method execution process S1: Recognition of placement state: The tilt angle sensor detects an inclination angle of 80° and sends a "flat signal" to the control system; S2: Spacer plate state detection: The micro switch is reset, and the "single integrated cavity signal" is sent without error alarm; S3: Air duct switching control: The control system issues instructions, adopts linear transmission driving mode, and drives the air duct switching component to conduct the top plate groove air duct; S4: Thermal cycle heating: The fan starts (initial speed 1600 r / min), and the heated hot air uniformly covers the surface of the pizza along the top plate groove, forming a planar heating; S5: Temperature feedback adjustment: The temperature reaches 200°C after 5 minutes, and the speed is maintained stable. The temperature fluctuation during the cooking process is controlled within 195-205°C; S6: Display adaptation adjustment: The display panel folding angle is adjusted to 75°, and the user can view the operation without bending over.

[0033] Example 3: Vertical placement + spacer plate insertion (double independent cavities) 1. Implementation conditions Air fryer tilt angle is 5°, and it is determined to be placed vertically; The partition is plugged in place, and the micro switch is locked. It is determined to be double independent cavities. The target cooking temperature is 180℃, and the two side cavities respectively cook chicken wings and potato chips.

[0034] 2. Method execution process S1: Place state recognition: send "vertical placement signal"; S2: Partition state detection: send "double independent cavity signal", and the partition size matches without alarm; S3: Air duct switching control: drive both side cavities to conduct top air duct, and independently circulate; S4: Heat cycle heating: both sides of the fan are started synchronously (rotation speed 1400r / min), and each forms a top heat cycle; S5: Temperature feedback adjustment: after 5 minutes, both sides of the temperature reach the standard 180℃, and are maintained stable; the potato chip cavity is automatically reduced to 170℃ in the later period to avoid burning; S6: The display panel angle is adjusted to 15°, which is convenient for operation.

[0035] In summary, the air duct switching method of the air fryer includes five core steps of place state recognition, partition state detection, air duct switching control, heat cycle heating and temperature feedback adjustment: the vertical / flat state is determined by the tilt angle, the partition plug-in / isolation state is detected by the trigger signal, the control system issues instructions according to the double state, the air duct switching component changes the hot air conduction path, and the fan speed or secondary air duct switching is dynamically adjusted according to the temperature data. Adapt to different cavity shapes and placement methods. The present application solves the defects of fixed air duct, poor adaptability, uneven cooking of large size food, and low heating efficiency of traditional air fryer, realizes intelligent air duct adaptation, improves heating uniformity, improves cooking efficiency, and is suitable for different placement states, different cavity specifications and air fryer cooking scenes.

[0036] The basic principles and main features of the present application and the advantages of the present application are shown and described. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A method for switching air ducts in an air fryer, characterized in that, Includes the following steps: S1: Placement status recognition, which determines whether the air fryer is placed vertically or horizontally by detecting its tilt angle; S2: Partition status detection. The trigger signal determines whether the detachable partition is inserted or removed, thereby determining whether the cooking cavity is a dual independent cavity or a single integrated cavity. S3: Air duct switching control. The control system issues a drive command based on the placement status in step S1 and the cavity status in step S2. The air duct switching component is driven by a motor to change the hot air conduction path. S4: Heat circulation heating. The fan draws air from the cooking cavity, heats it through the heating element, and then circulates it to heat the food along the switched conduction path. The vaporized water produced during cooking is discharged through the preset exhaust path. S5: Temperature feedback adjustment, real-time collection of cooking cavity temperature data, dynamic adjustment of fan speed or re-triggering of air duct switching to ensure that the temperature reaches the preset cooking requirements.

2. The air duct switching method for an air fryer according to claim 1, characterized in that: In S1, the criteria for determining the placement status are: when the tilt angle is ≤15°, it is determined to be placed vertically; when the tilt angle is ≥75°, it is determined to be placed horizontally.

3. The air duct switching method for an air fryer according to claim 1, characterized in that: In S2, the triggering logic for the partition status detection is as follows: when the partition is inserted into place, a locking signal is triggered, indicating that it is a dual independent cavity; when the partition is removed, a reset signal is triggered, indicating that it is a single integrated cavity.

4. The air duct switching method for an air fryer according to claim 1, characterized in that: In S3, the motor drive transmission method is any one of the following: the motor drives the transmission structure to drive the air duct switching component to flip, or the motor drives the linear transmission structure to drive the air duct switching component to flip, or the motor drives the closed-loop transmission structure to drive the air duct switching component to flip.

5. The air duct switching method for an air fryer according to claim 1, characterized in that: In S3, the specific logic for switching the air duct is as follows: when placed vertically, the hot air path at the top is connected by default; when placed horizontally, the hot air path in the preset groove of the top plate is connected; when a single integrated cavity is used, the hot air path on the side wall can be connected additionally.

6. The air duct switching method for an air fryer according to claim 1, characterized in that: In S5, the specific logic of temperature feedback adjustment is as follows: if the target cooking temperature is not reached within the set time, the fan speed is increased first; if it is still not reached, the secondary air duct switching is triggered, and the auxiliary hot air path is activated to form vortex heating.

7. The air duct switching method for an air fryer according to claim 1, characterized in that: When step S1 determines that the room is placed vertically and step S2 determines that the room is a single integrated cavity, the air duct switching logic of step S3 is: simultaneously open the corresponding hot air paths on both sides, so that the high-temperature airflow circulates from both sides to the center of the cavity, forming a surround heating.

8. The air duct switching method for an air fryer according to claim 1, characterized in that: When step S1 determines that the food is laid flat, the air duct switching logic in step S3 is: prioritize the hot air path of the preset groove in the top plate, so that the high-temperature airflow can evenly cover the surface of the food along the top plate, which is suitable for cooking large-sized food.

9. The air duct switching method for an air fryer according to claim 1, characterized in that: S2 also includes a partition mis-insertion determination step: by detecting the size matching relationship on both sides of the partition, it is determined whether there is a flipping mis-insertion. If a mismatch is detected, an alarm signal is triggered to prevent the device from starting.

10. The air duct switching method for an air fryer according to claim 1, characterized in that: It also includes a display adaptation step: automatically adjusting the folding angle of the display panel according to the placement state in step S1, adjusting it to 0°~30° when placed vertically, and adjusting it to 60°~90° when placed flat, to ensure that the user can operate it visually.

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