Air fryer, control method, control device and readable storage medium thereof

Abstract

This invention proposes an air fryer and its control method, control device, and readable storage medium. The air fryer includes a cooking cavity, a hot air assembly, an electronic control unit, and a cooling fan. The hot air assembly is used to deliver hot air into the cooking cavity and includes a cooking fan. The airflow generated by the cooling fan can flow to the electronic control unit. The control method includes: detecting the working data of the air fryer and adjusting the speed of the cooling fan according to the working data; wherein, the driving component of the cooling fan is different from that of the cooking fan. During the entire cooking process of the air fryer, the speed of the cooling fan can be reduced when certain conditions are met, so that the cooling fan does not always operate at a high speed, reducing the duration of high noise generation, thereby achieving the effect of reducing noise during the entire cooking process and improving the noise experience.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more specifically, to an air fryer and its control method, control device, and readable storage medium. Background Technology

[0002] Currently, air fryers in related technologies generally have a separate cooling fan to dissipate heat from the electronic control components inside the air fryer. The cooling fan is usually matched with specifications and speed according to the most severe working conditions, and the cooling fan generally maintains a constant speed during the operation of the air fryer, resulting in relatively high noise throughout the cooking process, which affects the user experience. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] Therefore, the first aspect of the present invention is to provide a control method for an air fryer.

[0005] A second aspect of the invention is to provide a control device for an air fryer.

[0006] A third aspect of the present invention is to provide a control device for an air fryer.

[0007] A fourth aspect of the present invention is to provide a readable storage medium.

[0008] The fifth aspect of the present invention is to provide an air fryer.

[0009] In view of this, according to a first aspect of the present invention, a control method for an air fryer is proposed. The air fryer includes a cooking cavity, a hot air assembly, an electronic control unit, and a cooling fan. The hot air assembly is used to deliver hot air into the cooking cavity. The hot air assembly includes a cooking fan. The airflow generated by the cooling fan can flow to the electronic control unit. The control method includes: detecting the working data of the air fryer and adjusting the rotation speed of the cooling fan according to the working data; wherein the driving component of the cooling fan is different from the driving component of the cooking fan.

[0010] The air fryer control method provided by the present invention enables the hot air assembly to deliver hot air into the cooking cavity to heat and cook the food inside the cooking cavity, thereby achieving the air frying function.

[0011] When the cooling fan is working, the airflow generated can flow to the electrical components to remove the heat from the surface of the electrical components, thereby reducing the probability of electrical component failure and extending the service life of the electrical components and the air fryer.

[0012] The operating data of the air fryer is measured, optionally including at least one of the following: power, temperature inside the heat dissipation chamber where the electrical control unit is located, and cooking data. It is understood that different air fryer power outputs result in different heat generation from the power module on the control board, thus requiring different levels of heat dissipation. Furthermore, the temperature inside the heat dissipation chamber, the temperature inside the cooking chamber, cooking time, or cooking program are all factors that affect the degree of heat dissipation.

[0013] The cooling fan speed is adjusted based on operating data. For example, when the temperature inside the cooling chamber has not reached the set temperature, the required heat dissipation is lower, and the cooling fan can maintain a lower speed. Alternatively, once the temperature inside the cooking chamber reaches the preset temperature, the air fryer's input power is reduced, decreasing the heat generated by the power module on the control board. In this case, the cooling fan speed can be reduced. In other words, the cooling fan speed is adjusted according to the required heat dissipation based on different factors during the air fryer's operation. This means that throughout the cooking process, the cooling fan speed can be reduced under certain conditions, preventing it from constantly operating at a high speed and reducing the duration of loud noise. This ultimately reduces noise throughout the cooking process and improves the overall noise experience.

[0014] Because the driving components of the cooling fan and the cooking fan are different, adjusting the speed of the cooling fan will not affect the cooking effect of the food.

[0015] In addition, the air fryer control method according to the above-described technical solution provided by the present invention may also have the following additional technical features:

[0016] In some technical solutions, optionally, the working data of the air fryer is detected, and the speed of the cooling fan is adjusted according to the working data. Specifically, this includes: detecting the input power of the air fryer, and adjusting the speed of the cooling fan according to the input power.

[0017] In this technical solution, it's understood that different types or quantities of ingredients, different cooking modes, and different input power levels result in different cooking modes. Furthermore, different input power levels in an air fryer lead to varying heat generation from modules such as the IGBT (Insulated Gate Bipolar Transistor). Different fan speeds also affect heat dissipation capacity. In other words, the input power is matched to the fan speed. For example, when the input power is high, meaning the air fryer starts operating at a higher power, the IGBT and other modules generate more heat, requiring the fan to have better heat dissipation capacity—that is, increasing the fan speed—to ensure the air fryer's operational stability. When the air fryer starts operating at a lower power, the IGBT and other modules generate less heat, allowing the fan to operate at a lower speed. This satisfies the heat dissipation requirements while preventing the fan from constantly operating at a high speed, reducing the duration of excessive noise.

[0018] In some technical solutions, the speed of the cooling fan can be adjusted according to the input power, specifically including: when the input power is greater than or equal to the set power, controlling the cooling fan to run at a first speed; when the input power is less than the set power, controlling the cooling fan to run at a second speed, the second speed being less than the first speed.

[0019] In this technical solution, when the input power is greater than or equal to the set power, that is, when the air fryer starts working at the set power, the cooling fan operates at a higher speed to ensure effective heat dissipation of the electrical components and improve the reliability of the air fryer.

[0020] When the air fryer operates at a power lower than the set power, the heat generated by the electronic control components is relatively low. Therefore, the speed of the cooling fan can be reduced accordingly to meet the heat dissipation requirements while reducing the noise during the air fryer cooking process.

[0021] Optionally, the power can be set to the rated power.

[0022] Optionally, the speed can be reduced by a corresponding percentage based on the percentage of input power, or the speed can be reduced in stages to simplify the speed reduction logic. For example, when the air fryer is running with an input power of 1000W, the corresponding fan speed is 1000rpm; when the air fryer is running with an input power of 500W, the corresponding fan speed is 500rpm.

[0023] Optionally, the second speed V2 and the first speed V1 satisfy 1 / 2(V1)≤V2≤2 / 3(V1), which helps to simplify the control logic and reduce control costs.

[0024] In some technical solutions, the air fryer may optionally include a heat dissipation cavity, with electrical controls located inside the heat dissipation cavity. A heat dissipation fan is connected to the heat dissipation cavity to detect the air fryer's operating data and adjust the speed of the heat dissipation fan according to the operating data. Specifically, this includes detecting the temperature parameters inside the heat dissipation cavity and adjusting the speed of the heat dissipation fan according to the temperature parameters inside the heat dissipation cavity.

[0025] In this technical solution, the air fryer is further defined as including a heat dissipation cavity. Specifically, the electrical control unit is located inside the heat dissipation cavity, and the heat dissipation fan is connected to the heat dissipation cavity. Optionally, the air fryer also includes an air inlet and an air outlet, either of which is connected to the heat dissipation cavity. When the heat dissipation fan is running, the airflow enters the heat dissipation cavity from the air inlet and flows out through the air outlet, which can carry away the heat on the surface of the electrical control unit, thereby achieving heat dissipation of the electrical control unit and improving the reliability of the air fryer.

[0026] Understandably, the total cooking time of an air fryer varies depending on the type of food, resulting in different temperature rises in the electrical components. For example, when baking egg tarts or chicken wings, the maximum temperature reached by the IGBT and other modules is not very high after the entire process. However, when baking frozen foods like frozen fries, the maximum temperature reached by the IGBT and other modules is very high.

[0027] The speed of the cooling fan is adjusted according to the temperature parameters inside the cooling cavity. In other words, the speed of the cooling fan is increased only when the temperature parameters inside the cooling cavity meet certain conditions to meet the cooling requirements. Before the temperature parameters reach a certain condition, the cooling fan runs at a lower speed, which can meet the cooling requirements while reducing the duration of loud noise, thereby reducing the noise during the entire cooking process and improving the noise experience.

[0028] Optionally, the air fryer includes a temperature sensing element to detect temperature parameters within the heat dissipation cavity.

[0029] Optionally, the temperature sensor is configured to be located close to the control board. Optionally, the air fryer also includes a heat sink located on the control board, with the temperature sensor configured to be located close to the heat sink.

[0030] Optionally, the temperature sensing element includes an NTC (thermistor).

[0031] In some technical solutions, optionally, the speed of the cooling fan is adjusted according to the temperature parameters inside the heat dissipation cavity. Specifically, this includes: when the temperature inside the heat dissipation cavity reaches the set temperature and / or the temperature rise rate inside the heat dissipation cavity reaches the set rate, controlling the cooling fan to run at a third speed; when the temperature inside the heat dissipation cavity is lower than the set temperature and the temperature rise rate inside the heat dissipation cavity is lower than the set rate, controlling the cooling fan to run at a fourth speed, where the fourth speed is lower than the third speed.

[0032] In this technical solution, optionally, the set temperature T is 1 / 2 to 2 / 3 of the IGBT's safe temperature. Specifically, when the temperature inside the heat dissipation cavity rises to the set temperature T, the speed of the cooling fan is increased to meet the heat dissipation requirements. And / or, when the rate of temperature rise inside the heat dissipation cavity is abnormal, the speed of the cooling fan is increased to meet the heat dissipation requirements. For example, normally it takes time t to reach 1 / 2 of the set temperature T, but if it is abnormally fast, reaching 1 / 2t to 2 / 3t in only 1 / 2t to 2 / 3t time, it indicates that the rate of temperature rise inside the heat dissipation cavity is abnormal.

[0033] When the temperature inside the heat dissipation cavity does not reach the T value and the temperature rise rate is not abnormal, the heat dissipation fan is controlled to run at a lower speed. This can meet the heat dissipation requirements while reducing the duration of loud noise, thereby reducing the noise during the entire cooking process.

[0034] In some technical solutions, optionally, the working data of the air fryer is detected, and the speed of the cooling fan is adjusted according to the working data. Specifically, this includes: detecting the cooking data of the air fryer and adjusting the speed of the cooling fan according to the cooking data.

[0035] In this technical solution, the speed of the cooling fan is adjusted according to the cooking data. It can be understood that the air fryer starts working with a large input power. When the temperature inside the cooking cavity reaches the preset temperature, the input power needs to be reduced to lower the heating temperature inside the cooking cavity in order to meet the cooking requirements of the food. Reducing the input power will reduce the heat generation of the electrical control. At this time, the cooling fan can be matched with a lower speed, which can meet the heat dissipation requirements while reducing the duration of generating large noise.

[0036] In some technical solutions, the speed of the cooling fan can be adjusted according to the cooking data, specifically including: reducing the speed of the cooling fan when the cooking data meets the set conditions.

[0037] In this technical solution, it can be understood that the air fryer starts working with a large input power. When the temperature inside the cooking cavity reaches the preset temperature (set conditions), the input power needs to be reduced to lower the heating temperature inside the cooking cavity in order to meet the cooking requirements of the food. Reducing the input power will reduce the heat generation of the electrical control. At this time, the cooling fan can be matched with a lower speed to meet the heat dissipation requirements while reducing the duration of generating large noise.

[0038] In some technical solutions, optionally, reducing the input power is also included before reducing the speed of the cooling fan.

[0039] In this technical solution, if the input power remains high after the cooking data reaches the set conditions, reducing the speed of the cooling fan will not meet the heat dissipation requirements, thus reducing the reliability of the air fryer. In other words, by matching the input power with the cooling fan speed, once the cooking data reaches the set conditions, the air fryer no longer requires high input power. Because the input power of the air fryer is reduced, the heat generated by modules such as the IGBT is reduced. Therefore, the speed of the cooling fan can be reduced, thereby meeting the heat dissipation requirements while reducing the duration of high noise levels during the air fryer's cooking process, ultimately achieving a reduction in noise throughout the entire cooking process.

[0040] In some technical solutions, the input power can be optionally reduced, specifically including: when the amount of food in the cooking cavity is greater than or equal to a set amount, the reduced input power is determined as a first power; when the amount of food in the cooking cavity is less than a set amount, the reduced input power is determined as a second power, and the second power is less than the first power.

[0041] In this technical solution, it is understood that the required heating power varies depending on the amount of food to be cooked. Therefore, determining the reduced input power based on the amount of food can reduce the duration of high noise in the air fryer while ensuring the cooking effect of the food in the cooking cavity, which is conducive to further improving the user experience.

[0042] Specifically, if the amount of food to be cooked in the cooking chamber is large, reduce the input power of the air fryer to the first power, such as 1500W. If the amount of food to be cooked in the cooking chamber is small, reduce the input power of the air fryer to the second power, such as 1000W.

[0043] Optionally, the input power includes 2000W, 1500W, 1000W, or 500W. Alternatively, the input power includes 80%P, 50%P, or 20%P, where P is the input power.

[0044] In some technical solutions, the cooking data may optionally include at least one of the following: temperature inside the cooking cavity, cooking time, and cooking procedure.

[0045] In this technical solution, optionally, the cooking data includes cooking time. That is, when the cooking time of the air fryer reaches the set time, it indirectly indicates that the temperature inside the cooking cavity has reached the set temperature. At this time, the air fryer does not need high input power. Since the input power of the air fryer is reduced, the heat generation of modules such as IGBT is reduced. Therefore, the speed of the cooling fan can be reduced, thereby meeting the heat dissipation requirements while reducing the duration of loud noise generated during the cooking process of the air fryer, thus achieving the effect of reducing noise during the entire cooking process.

[0046] Optionally, the cooking data includes the temperature inside the cooking cavity, i.e., when the temperature inside the cooking cavity reaches the power adjustment temperature, the air fryer does not need a high input power. Since the input power of the air fryer is reduced, the heat generation of modules such as IGBT is reduced. Therefore, the speed of the cooling fan can be reduced, thereby meeting the heat dissipation requirements while reducing the duration of loud noise generated during the air fryer cooking process.

[0047] Optionally, the air fryer also includes an NTC, which is located inside the cooking cavity and is used to detect the temperature inside the cooking cavity.

[0048] Optionally, the cooking data includes the degree of cooking. It is understood that the cooking program includes multiple cooking stages, and different cooking stages correspond to different input power. Therefore, the speed of the cooling fan can be changed accordingly.

[0049] In some technical solutions, optionally, the electrical control unit includes an electromagnetic component and an electrical control board, the cooking fan includes fan blades opposite to the electromagnetic component, at least a portion of the fan blades are magnetically conductive, and the airflow generated by the cooling fan can flow to the electromagnetic component and / or the electrical control board.

[0050] In this technical solution, since the electromagnetic component is opposite to the fan blades, and at least part of the fan blades are magnetic, the electromagnetic component generates an alternating magnetic field when energized. Under the influence of this alternating magnetic field, the magnetically conductive fan blades opposite the electromagnetic component heat up. This self-heating of the fan blades heats the surrounding air. Simultaneously, the fan blades rotate within the cooking chamber, carrying away heat to form a hot airflow, dissipating the heat generated by the fan blades to cook the food inside the cooking chamber. Through the interaction between the electromagnetic component and the magnetically conductive fan blades, the fan blades can rapidly increase in temperature within a short time. Furthermore, the rapid rotation of the fan blades generates hot air within the cooking chamber, which improves the cooking efficiency of the air fryer. In other words, the air fryer is an air fryer that utilizes electromagnetic heating. Specifically, the air fryer can be a pull-out type or a flip-top type.

[0051] It is understandable that the fan blades of electromagnetic heating generate a lot of heat, which will be transferred to the electromagnetic components. The performance of the electromagnetic components will be reduced due to high temperature, so timely heat dissipation is required. However, the heat dissipation method of ordinary cooling fans that share a drive shaft with the drive components of cooking fans cannot cool down in time. In addition, the electronic control board includes IGBTs and bridge rectifiers, which have a complex structure. Therefore, a separate cooling fan is required to dissipate heat from the electromagnetic components and / or the electronic control board.

[0052] According to a second aspect of the present invention, the present invention provides a control device for an air fryer, the air fryer including a cooking cavity, a hot air assembly, an electronic control unit, and a cooling fan, the hot air assembly being used to deliver hot air into the cooking cavity, the hot air assembly including a cooking fan, the airflow generated by the cooling fan being able to flow to the electronic control unit, the control device including: a processing unit for detecting the working data of the air fryer and adjusting the rotation speed of the cooling fan according to the working data; wherein, the driving component of the cooling fan is different from the driving component of the cooking fan.

[0053] The technical solution of this application proposes a control device for an air fryer, wherein the hot air assembly can deliver hot air into the cooking cavity to heat and cook the food inside the cooking cavity, thereby achieving the air frying function.

[0054] When the cooling fan is working, the airflow generated can flow to the electrical components to remove the heat from the surface of the electrical components, thereby reducing the probability of electrical component failure and extending the service life of the electrical components and the air fryer.

[0055] The operating data of the air fryer is measured, optionally including at least one of the following: power, temperature inside the heat dissipation chamber where the electrical control unit is located, and cooking data. It is understood that different air fryer power outputs result in different heat generation from the power module on the control board, thus requiring different levels of heat dissipation. Furthermore, the temperature inside the heat dissipation chamber, the temperature inside the cooking chamber, cooking time, or cooking program are all factors that affect the degree of heat dissipation.

[0056] The cooling fan speed is adjusted based on operating data. For example, when the temperature inside the cooling chamber has not reached the set temperature, the required heat dissipation is lower, and the cooling fan can maintain a lower speed. Alternatively, once the temperature inside the cooking chamber reaches the preset temperature, the air fryer's input power is reduced, decreasing the heat generated by the power module on the control board. In this case, the cooling fan speed can be reduced. In other words, the cooling fan speed is adjusted according to the required heat dissipation based on different factors during the air fryer's operation. This means that throughout the cooking process, the cooling fan speed can be reduced under certain conditions, preventing it from constantly operating at a high speed and reducing the duration of loud noise. This ultimately reduces noise throughout the cooking process and improves the overall noise experience.

[0057] Because the driving components of the cooling fan and the cooking fan are different, adjusting the speed of the cooling fan will not affect the cooking effect of the food.

[0058] In addition, the control device for the air fryer according to the above-described technical solution provided by the present invention may also have the following additional technical features:

[0059] In some technical solutions, the processing unit is optionally used to detect the input power of the air fryer and adjust the speed of the cooling fan according to the input power.

[0060] In this technical solution, it's understood that different types or quantities of ingredients, different cooking modes, and different input power levels result in different cooking modes. Furthermore, different input power levels in an air fryer lead to varying heat generation from modules such as the IGBT (Insulated Gate Bipolar Transistor). Different fan speeds also affect heat dissipation capacity. In other words, the input power is matched to the fan speed. For example, when the input power is high, meaning the air fryer starts operating at a higher power, the IGBT and other modules generate more heat, requiring the fan to have better heat dissipation capacity—that is, increasing the fan speed—to ensure the air fryer's operational stability. When the air fryer starts operating at a lower power, the IGBT and other modules generate less heat, allowing the fan to operate at a lower speed. This satisfies the heat dissipation requirements while preventing the fan from constantly operating at a high speed, reducing the duration of excessive noise.

[0061] In some technical solutions, the processing unit is optionally used to control the cooling fan to run at a first speed when the input power is greater than or equal to the set power; the processing unit is also specifically used to control the cooling fan to run at a second speed when the input power is less than the set power, the second speed being less than the first speed.

[0062] In this technical solution, when the input power is greater than or equal to the set power, that is, when the air fryer starts working at the set power, the cooling fan operates at a higher speed to ensure effective heat dissipation of the electrical components and improve the reliability of the air fryer.

[0063] When the air fryer operates at a power lower than the set power, the heat generated by the electronic control components is relatively low. Therefore, the speed of the cooling fan can be reduced accordingly to meet the heat dissipation requirements while reducing the noise during the air fryer cooking process.

[0064] Optionally, the power can be set to the rated power.

[0065] Optionally, the speed can be reduced by a corresponding percentage based on the percentage of input power, or the speed can be reduced in stages to simplify the speed reduction logic. For example, when the air fryer is running with an input power of 1000W, the corresponding fan speed is 1000rpm; when the air fryer is running with an input power of 500W, the corresponding fan speed is 500rpm.

[0066] Optionally, the second speed V2 and the first speed V1 satisfy 1 / 2(V1)≤V2≤2 / 3(V1), which helps to simplify the control logic and reduce control costs.

[0067] In some technical solutions, the air fryer may optionally include a heat dissipation cavity, with electrical controls located inside the heat dissipation cavity, a heat dissipation fan connected to the heat dissipation cavity, and a processing unit specifically used to detect the temperature parameters inside the heat dissipation cavity and adjust the speed of the heat dissipation fan according to the temperature parameters inside the heat dissipation cavity.

[0068] In this technical solution, the air fryer is further defined as including a heat dissipation cavity. Specifically, the electrical control unit is located inside the heat dissipation cavity, and the heat dissipation fan is connected to the heat dissipation cavity. Optionally, the air fryer also includes an air inlet and an air outlet, either of which is connected to the heat dissipation cavity. When the heat dissipation fan is running, the airflow enters the heat dissipation cavity from the air inlet and flows out through the air outlet, which can carry away the heat on the surface of the electrical control unit, thereby achieving heat dissipation of the electrical control unit and improving the reliability of the air fryer.

[0069] Understandably, the total cooking time of an air fryer varies depending on the type of food, resulting in different temperature rises in the electrical components. For example, when baking egg tarts or chicken wings, the maximum temperature reached by the IGBT and other modules is not very high after the entire process. However, when baking frozen foods like frozen fries, the maximum temperature reached by the IGBT and other modules is very high.

[0070] The speed of the cooling fan is adjusted according to the temperature parameters inside the cooling cavity. In other words, the speed of the cooling fan is increased only when the temperature parameters inside the cooling cavity meet certain conditions to meet the cooling requirements. Before the temperature parameters reach a certain condition, the cooling fan runs at a lower speed, which can meet the cooling requirements while reducing the duration of loud noise, thereby reducing the noise during the entire cooking process and improving the noise experience.

[0071] Optionally, the air fryer includes a temperature sensing element to detect temperature parameters within the heat dissipation cavity.

[0072] Optionally, the temperature sensor is configured to be located close to the control board. Optionally, the air fryer also includes a heat sink located on the control board, with the temperature sensor configured to be located close to the heat sink.

[0073] Optionally, the temperature sensing element includes an NTC.

[0074] In some technical solutions, optionally, the processing unit is specifically used to control the cooling fan to run at a third speed when the temperature inside the heat dissipation cavity reaches a set temperature and / or the temperature rise rate inside the heat dissipation cavity reaches a set rate; the processing unit is also specifically used to control the cooling fan to run at a fourth speed when the temperature inside the heat dissipation cavity is lower than the set temperature and the temperature rise rate inside the heat dissipation cavity is lower than the set rate, the fourth speed being lower than the third speed.

[0075] In this technical solution, optionally, the set temperature T is 1 / 2 to 2 / 3 of the IGBT's safe temperature. Specifically, when the temperature inside the heat dissipation cavity rises to the set temperature T, the speed of the cooling fan is increased to meet the heat dissipation requirements. And / or, when the rate of temperature rise inside the heat dissipation cavity is abnormal, the speed of the cooling fan is increased to meet the heat dissipation requirements. For example, normally it takes time t to reach 1 / 2 of the set temperature T, but if it is abnormally fast, reaching 1 / 2t to 2 / 3t in only 1 / 2t to 2 / 3t time, it indicates that the rate of temperature rise inside the heat dissipation cavity is abnormal.

[0076] When the temperature inside the heat dissipation cavity does not reach the T value and the temperature rise rate is not abnormal, the heat dissipation fan is controlled to run at a lower speed. This can meet the heat dissipation requirements while reducing the duration of loud noise, thereby reducing the noise during the entire cooking process.

[0077] In some technical solutions, the processing unit is optionally used to detect the cooking data of the air fryer and adjust the speed of the cooling fan according to the cooking data.

[0078] In this technical solution, the speed of the cooling fan is adjusted according to the cooking data. It can be understood that the air fryer starts working with a large input power. When the temperature inside the cooking cavity reaches the preset temperature, the input power needs to be reduced to lower the heating temperature inside the cooking cavity in order to meet the cooking requirements of the food. Reducing the input power will reduce the heat generation of the electrical control. At this time, the cooling fan can be matched with a lower speed, which can meet the heat dissipation requirements while reducing the duration of generating large noise.

[0079] In some technical solutions, the processing unit is optionally used to reduce the speed of the cooling fan when the cooking data reaches the set conditions.

[0080] In this technical solution, it can be understood that the air fryer starts working with a large input power. When the temperature inside the cooking cavity reaches the preset temperature (set conditions), the input power needs to be reduced to lower the heating temperature inside the cooking cavity in order to meet the cooking requirements of the food. Reducing the input power will reduce the heat generation of the electrical control. At this time, the cooling fan can be matched with a lower speed to meet the heat dissipation requirements while reducing the duration of generating large noise.

[0081] In some technical solutions, the processing unit is optionally also used to reduce input power.

[0082] In this technical solution, if the input power remains high after the cooking data reaches the set conditions, reducing the speed of the cooling fan will not meet the heat dissipation requirements, thus reducing the reliability of the air fryer. In other words, by matching the input power with the cooling fan speed, once the cooking data reaches the set conditions, the air fryer no longer requires high input power. Because the input power of the air fryer is reduced, the heat generated by modules such as the IGBT is reduced. Therefore, the speed of the cooling fan can be reduced, thereby meeting the heat dissipation requirements while reducing the duration of high noise levels during the air fryer's cooking process, ultimately achieving a reduction in noise throughout the entire cooking process.

[0083] In some technical solutions, optionally, the processing unit is specifically used to determine the reduced input power as the first power when the amount of food in the cooking cavity is greater than or equal to a set amount; the processing unit is also specifically used to determine the reduced input power as the second power when the amount of food in the cooking cavity is less than a set amount, wherein the second power is less than the first power.

[0084] In this technical solution, it is understood that the required heating power varies depending on the amount of food to be cooked. Therefore, determining the reduced input power based on the amount of food can reduce the duration of high noise in the air fryer while ensuring the cooking effect of the food in the cooking cavity, which is conducive to further improving the user experience.

[0085] Specifically, if the amount of food to be cooked in the cooking chamber is large, reduce the input power of the air fryer to the first power, such as 1500W. If the amount of food to be cooked in the cooking chamber is small, reduce the input power of the air fryer to the second power, such as 1000W.

[0086] Optionally, the input power includes 2000W, 1500W, 1000W, or 500W. Alternatively, the input power includes 80%P, 50%P, or 20%P, where P is the input power.

[0087] In some technical solutions, the cooking data may optionally include at least one of the following: temperature inside the cooking cavity, cooking time, and cooking procedure.

[0088] In this technical solution, optionally, the cooking data includes cooking time. That is, when the cooking time of the air fryer reaches the set time, it indirectly indicates that the temperature inside the cooking cavity has reached the set temperature. At this time, the air fryer does not need high input power. Since the input power of the air fryer is reduced, the heat generation of modules such as IGBT is reduced. Therefore, the speed of the cooling fan can be reduced, thereby meeting the heat dissipation requirements while reducing the duration of loud noise generated during the cooking process of the air fryer, thus achieving the effect of reducing noise during the entire cooking process.

[0089] Optionally, the cooking data includes the temperature inside the cooking cavity, i.e., when the temperature inside the cooking cavity reaches the power adjustment temperature, the air fryer does not need a high input power. Since the input power of the air fryer is reduced, the heat generation of modules such as IGBT is reduced. Therefore, the speed of the cooling fan can be reduced, thereby meeting the heat dissipation requirements while reducing the duration of loud noise generated during the air fryer cooking process.

[0090] Optionally, the air fryer also includes an NTC (thermistor), which is located inside the cooking cavity and is used to detect the temperature inside the cooking cavity.

[0091] Optionally, the cooking data includes the degree of cooking. It is understood that the cooking program includes multiple cooking stages, and different cooking stages correspond to different input power. Therefore, the speed of the cooling fan can be changed accordingly.

[0092] In some technical solutions, optionally, the electrical control unit includes an electromagnetic component and an electrical control board, the cooking fan includes fan blades opposite to the electromagnetic component, at least a portion of the fan blades are magnetically conductive, and the airflow generated by the cooling fan can flow to the electromagnetic component and / or the electrical control board.

[0093] In this technical solution, since the electromagnetic component is opposite to the fan blades, and at least part of the fan blades are magnetic, the electromagnetic component generates an alternating magnetic field when energized. Under the influence of this alternating magnetic field, the magnetically conductive fan blades opposite the electromagnetic component heat up. This self-heating of the fan blades heats the surrounding air. Simultaneously, the fan blades rotate within the cooking chamber, carrying away heat to form a hot airflow, dissipating the heat generated by the fan blades to cook the food inside the cooking chamber. Through the interaction between the electromagnetic component and the magnetically conductive fan blades, the fan blades can rapidly increase in temperature within a short time. Furthermore, the rapid rotation of the fan blades generates hot air within the cooking chamber, which improves the cooking efficiency of the air fryer. In other words, the air fryer is an air fryer that utilizes electromagnetic heating. Specifically, the air fryer can be a pull-out type or a flip-top type.

[0094] It is understandable that the fan blades of electromagnetic heating generate a lot of heat, which will be transferred to the electromagnetic components. The performance of the electromagnetic components will be reduced due to high temperature, so timely heat dissipation is required. However, the heat dissipation method of ordinary cooling fans that share a drive shaft with the drive components of cooking fans cannot cool down in time. In addition, the electronic control board includes IGBTs and bridge rectifiers, which have a complex structure. Therefore, a separate cooling fan is required to dissipate heat from the electromagnetic components and / or the electronic control board.

[0095] According to a third aspect of the present invention, an air fryer control device is provided, comprising: a controller and a memory, wherein the memory stores a program or instructions, and the controller, when executing the program or instructions in the memory, implements the steps of any of the methods described above. Therefore, this air fryer control device possesses all the beneficial effects of any of the air fryer control methods described above.

[0096] According to a fourth aspect of the present invention, a readable storage medium is provided on which a program or instructions are stored, which, when executed by a processor, implement the steps of any of the methods described above. Therefore, this readable storage medium possesses all the beneficial effects of the air fryer control method described above.

[0097] According to a fifth aspect of the present invention, an air fryer is provided, comprising: an air fryer control device as described in any of the preceding claims; or a readable storage medium as described above. Therefore, the air fryer possesses all the beneficial effects of the air fryer control device or the readable storage medium described in any of the preceding claims.

[0098] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0099] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0100] Figure 1 One of the flowcharts of a control method for an air fryer according to an embodiment of the present invention is shown;

[0101] Figure 2 A second flowchart of a control method for an air fryer according to an embodiment of the present invention is shown;

[0102] Figure 3 A flowchart of a control method for an air fryer according to an embodiment of the present invention is shown in part three.

[0103] Figure 4 A flowchart of a control method for an air fryer according to an embodiment of the present invention is shown in part four.

[0104] Figure 5 A schematic block diagram of the control device for an air fryer according to an embodiment of the present invention is shown;

[0105] Figure 6 One of the structural schematic diagrams of an air fryer according to an embodiment of the present invention is shown;

[0106] Figure 7 A second schematic diagram of the structure of an air fryer according to an embodiment of the present invention is shown;

[0107] Figure 8 The third schematic diagram shows the structure of an air fryer according to an embodiment of the present invention;

[0108] Figure 9 The fourth schematic diagram shows the structure of an air fryer according to an embodiment of the present invention.

[0109] in, Figures 6 to 9 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0110] 100 Air fryer, 110 Pot body, 111 Cooking cavity, 112 Heat dissipation cavity, 120 Hot air assembly, 121 Cooking fan, 122 Fan blade, 130 Electrical control unit, 131 Electromagnetic component, 132 Electrical control board, 150 Heat dissipation fan, 160 Temperature detection component. Detailed Implementation

[0111] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0112] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0113] The following reference Figures 1 to 9 An air fryer 100 and its control method, control device and readable storage medium are described according to some embodiments of the present invention.

[0114] In one embodiment of the invention, such as Figure 1 As shown, a control method for an air fryer is proposed. The air fryer includes a cooking cavity, a hot air assembly, an electronic control unit, and a cooling fan. The hot air assembly is used to deliver hot air into the cooking cavity. The hot air assembly includes a cooking fan, and the airflow generated by the cooling fan can flow to the electronic control unit. The control method includes:

[0115] Step 102: Detect the working data of the air fryer and adjust the speed of the cooling fan according to the working data.

[0116] The air fryer control method provided by the present invention enables the hot air assembly to deliver hot air into the cooking cavity to heat and cook the food inside the cooking cavity, thereby achieving the air frying function.

[0117] When the cooling fan is working, the airflow generated can flow to the electrical components to remove the heat from the surface of the electrical components, thereby reducing the probability of electrical component failure and extending the service life of the electrical components and the air fryer.

[0118] The operating data of the air fryer is measured, optionally including at least one of the following: power, temperature inside the heat dissipation chamber where the electrical control unit is located, and cooking data. It is understood that different air fryer power outputs result in different heat generation from the power module on the control board, thus requiring different levels of heat dissipation. Furthermore, the temperature inside the heat dissipation chamber, the temperature inside the cooking chamber, cooking time, or cooking program are all factors that affect the degree of heat dissipation.

[0119] The cooling fan speed is adjusted based on operating data. For example, when the temperature inside the cooling chamber has not reached the set temperature, the required heat dissipation is lower, and the cooling fan can maintain a lower speed. Alternatively, once the temperature inside the cooking chamber reaches the preset temperature, the air fryer's input power is reduced, decreasing the heat generated by the power module on the control board. In this case, the cooling fan speed can be reduced. In other words, the cooling fan speed is adjusted according to the required heat dissipation based on different factors during the air fryer's operation. This means that throughout the cooking process, the cooling fan speed can be reduced under certain conditions, preventing it from constantly operating at a high speed and reducing the duration of loud noise. This ultimately reduces noise throughout the cooking process and improves the overall noise experience.

[0120] Because the driving components of the cooling fan and the cooking fan are different, adjusting the speed of the cooling fan will not affect the cooking effect of the food.

[0121] In some embodiments, optionally, the working data of the air fryer is detected, and the speed of the cooling fan is adjusted according to the working data, specifically including: detecting the input power of the air fryer, and adjusting the speed of the cooling fan according to the input power.

[0122] In this embodiment, it is understood that different types or quantities of ingredients, different cooking modes, and different input power levels result in different cooking modes. Furthermore, different input power levels in the air fryer lead to different heat generation from modules such as the IGBT (Insulated Gate Bipolar Transistor). Different fan speeds also result in different cooling capacities. In other words, the input power is matched to the fan speed. For example, when the input power is high, meaning the air fryer starts operating at a higher power, the IGBT and other modules generate more heat, requiring the fan to have better cooling capacity, i.e., increasing the fan speed to ensure the stability of the air fryer's operation. When the air fryer starts operating at a lower power, the IGBT and other modules generate less heat, allowing the fan to operate at a lower speed. This satisfies the cooling requirements while preventing the fan from constantly operating at a high speed, reducing the duration of excessive noise.

[0123] In some embodiments, the speed of the cooling fan can be adjusted according to the input power, specifically including: when the input power is greater than or equal to a set power, controlling the cooling fan to run at a first speed; when the input power is less than the set power, controlling the cooling fan to run at a second speed, the second speed being less than the first speed.

[0124] In this embodiment, when the input power is greater than or equal to the set power, that is, when the air fryer starts working at the set power, the cooling fan operates at a higher speed to ensure effective heat dissipation of the electrical components and improve the reliability of the air fryer.

[0125] When the air fryer operates at a power lower than the set power, the heat generated by the electronic control components is relatively low. Therefore, the speed of the cooling fan can be reduced accordingly to meet the heat dissipation requirements while reducing the noise during the air fryer cooking process.

[0126] Optionally, the power can be set to the rated power.

[0127] Optionally, the speed can be reduced by a corresponding percentage based on the percentage of input power, or the speed can be reduced in stages to simplify the speed reduction logic. For example, when the air fryer is running with an input power of 1000W, the corresponding fan speed is 1000rpm; when the air fryer is running with an input power of 500W, the corresponding fan speed is 500rpm.

[0128] Optionally, the second speed V2 and the first speed V1 satisfy 1 / 2(V1)≤V2≤2 / 3(V1), which helps to simplify the control logic and reduce control costs.

[0129] In a specific embodiment, such as Figure 2As shown, a control method for an air fryer is proposed, the control method including:

[0130] Step 202: Determine whether it is operating at rated full power. If not, proceed to step 204; if yes, proceed to step 206.

[0131] Step 204: Turn on the cooling fan at a speed less than full speed;

[0132] Step 206: Turn on the cooling fan at full speed.

[0133] Rated full power is the set power.

[0134] In some embodiments, the air fryer may optionally include a heat dissipation cavity, an electrical control unit located inside the heat dissipation cavity, a heat dissipation fan connected to the heat dissipation cavity, and the detection of the air fryer's operating data and the adjustment of the heat dissipation fan speed according to the operating data. Specifically, this includes: detecting the temperature parameters inside the heat dissipation cavity and adjusting the heat dissipation fan speed according to the temperature parameters inside the heat dissipation cavity.

[0135] In this embodiment, the air fryer is further defined as including a heat dissipation cavity. Specifically, the electrical control unit is located inside the heat dissipation cavity, and the heat dissipation fan is connected to the heat dissipation cavity. Optionally, the air fryer also includes an air inlet and an air outlet, either of which is connected to the heat dissipation cavity. When the heat dissipation fan is running, the airflow enters the heat dissipation cavity from the air inlet and flows out through the air outlet, which can carry away the heat on the surface of the electrical control unit, thereby achieving heat dissipation of the electrical control unit and improving the reliability of the air fryer.

[0136] Understandably, the total cooking time of an air fryer varies depending on the type of food, resulting in different temperature rises in the electrical components. For example, when baking egg tarts or chicken wings, the maximum temperature reached by the IGBT and other modules is not very high after the entire process. However, when baking frozen foods like frozen fries, the maximum temperature reached by the IGBT and other modules is very high.

[0137] The speed of the cooling fan is adjusted according to the temperature parameters inside the cooling cavity. In other words, the speed of the cooling fan is increased only when the temperature parameters inside the cooling cavity meet certain conditions to meet the cooling requirements. Before the temperature parameters reach a certain condition, the cooling fan runs at a lower speed, which can meet the cooling requirements while reducing the duration of loud noise, thereby reducing the noise during the entire cooking process and improving the noise experience.

[0138] Optionally, the air fryer includes a temperature sensing element to detect temperature parameters within the heat dissipation cavity.

[0139] Optionally, the temperature sensor is configured to be located close to the control board. Optionally, the air fryer also includes a heat sink located on the control board, with the temperature sensor configured to be located close to the heat sink.

[0140] Optionally, the temperature sensing element includes an NTC.

[0141] In some embodiments, the speed of the cooling fan can be adjusted according to the temperature parameters inside the heat dissipation cavity, specifically including: when the temperature inside the heat dissipation cavity reaches a set temperature and / or the temperature rise rate inside the heat dissipation cavity reaches a set rate, controlling the cooling fan to run at a third speed; when the temperature inside the heat dissipation cavity is lower than the set temperature and the temperature rise rate inside the heat dissipation cavity is lower than the set rate, controlling the cooling fan to run at a fourth speed, the fourth speed being lower than the third speed.

[0142] In this embodiment, optionally, the set temperature T is 1 / 2 to 2 / 3 of the IGBT's safe temperature. Specifically, when the temperature inside the heat dissipation cavity rises to the set temperature T, the rotation speed of the cooling fan is increased to meet the heat dissipation requirements. And / or, when the rate of temperature rise inside the heat dissipation cavity is abnormal, the rotation speed of the cooling fan is increased to meet the heat dissipation requirements. For example, normally it takes time t to reach 1 / 2 of the set temperature T, but if it is abnormally fast, reaching 1 / 2t to 2 / 3t in only 1 / 2t to 2 / 3t time, it indicates that the rate of temperature rise inside the heat dissipation cavity is abnormal.

[0143] When the temperature inside the heat dissipation cavity does not reach the T value and the temperature rise rate is not abnormal, the heat dissipation fan is controlled to run at a lower speed. This can meet the heat dissipation requirements while reducing the duration of loud noise, thereby reducing the noise during the entire cooking process.

[0144] In a specific embodiment, such as Figure 3 As shown, a control method for an air fryer is proposed, the control method including:

[0145] Step 302: The cooling fan is turned on at a speed less than full speed;

[0146] Step 304: Determine whether the NTC temperature of the power board has reached the T value. If yes, proceed to step 306; otherwise, proceed to step 308.

[0147] Step 306: Turn on the cooling fan at full speed;

[0148] Step 308: Turn on the cooling fan at a speed less than full speed.

[0149] When the air fryer is started, the cooling fan starts running at a speed less than full speed, and the NTC temperature of the power board rises. It can be understood that the NTC temperature of the power board is the temperature inside the heat dissipation cavity, and the T value is the set temperature.

[0150] In some embodiments, optionally, the working data of the air fryer is detected, and the speed of the cooling fan is adjusted according to the working data. Specifically, this includes: detecting the cooking data of the air fryer, and adjusting the speed of the cooling fan according to the cooking data.

[0151] In this embodiment, the speed of the cooling fan is adjusted according to the cooking data. It can be understood that the air fryer starts working with a large input power. When the temperature inside the cooking cavity reaches the preset temperature, the input power needs to be reduced to lower the heating temperature inside the cooking cavity in order to meet the cooking requirements of the food. Reducing the input power will reduce the heat generation of the electrical control. At this time, the cooling fan can be matched with a lower speed to meet the heat dissipation requirements while reducing the duration of generating large noise.

[0152] In some embodiments, the speed of the cooling fan can be adjusted according to the cooking data, specifically including reducing the speed of the cooling fan when the cooking data meets the set conditions.

[0153] In this embodiment, it can be understood that the air fryer starts working with a large input power. When the temperature inside the cooking cavity reaches the preset temperature (set condition), the input power needs to be reduced to lower the heating temperature inside the cooking cavity in order to meet the cooking requirements of the food. Reducing the input power will reduce the heat generation of the electrical control. At this time, the cooling fan can be matched with a lower speed to meet the heat dissipation requirements while reducing the duration of generating large noise.

[0154] In some embodiments, the method may optionally include reducing the input power before reducing the speed of the cooling fan.

[0155] In this embodiment, if the input power remains high after the cooking data reaches the set conditions, reducing the speed of the cooling fan will not meet the heat dissipation requirements, thus reducing the reliability of the air fryer. In other words, by matching the input power with the speed of the cooling fan, once the cooking data reaches the set conditions, the air fryer no longer requires high input power. Because the input power of the air fryer decreases, the heat generated by modules such as the IGBT decreases, thus allowing the speed of the cooling fan to be reduced. This satisfies the heat dissipation requirements while reducing the duration of loud noise during the air fryer's cooking process, thereby reducing noise throughout the entire cooking process.

[0156] In another specific embodiment, such as Figure 4 As shown, a control method for an air fryer is proposed, the control method including:

[0157] Step 402, operate at rated full power;

[0158] Step 404: Turn on the cooling fan at full speed;

[0159] Step 406, the conditions for power adjustment are met;

[0160] Step 408: Operating at less than the rated full power;

[0161] Step 410: Turn on the cooling fan at a speed less than full speed.

[0162] Among them, full speed is the rated speed of the cooling fan, which is also the maximum speed of the cooling fan.

[0163] In some embodiments, optionally, reducing the input power specifically includes: when the amount of food in the cooking cavity is greater than or equal to a set amount, determining the reduced input power as a first power; when the amount of food in the cooking cavity is less than a set amount, determining the reduced input power as a second power, wherein the second power is less than the first power.

[0164] In this embodiment, it is understood that the required heating power varies depending on the amount of food to be cooked. Therefore, determining the reduced input power based on the amount of food can reduce the duration of high noise in the air fryer while ensuring the cooking effect of the food in the cooking cavity, which is beneficial to further improving the user experience.

[0165] Specifically, if the amount of food to be cooked in the cooking chamber is large, reduce the input power of the air fryer to the first power, such as 1500W. If the amount of food to be cooked in the cooking chamber is small, reduce the input power of the air fryer to the second power, such as 1000W.

[0166] Optionally, the input power includes 2000W, 1500W, 1000W, or 500W. Alternatively, the input power includes 80%P, 50%P, or 20%P, where P is the input power.

[0167] In some embodiments, the cooking data may optionally include at least one of the temperature inside the cooking cavity, cooking time, and cooking procedure.

[0168] In this embodiment, optionally, the cooking data includes cooking time. That is, when the cooking time of the air fryer reaches the set time, it indirectly indicates that the temperature inside the cooking cavity has reached the set temperature. At this time, the air fryer does not need high input power. Since the input power of the air fryer is reduced, the heat generation of modules such as IGBT is reduced. Therefore, the speed of the cooling fan can be reduced, thereby meeting the heat dissipation requirements while reducing the duration of loud noise generated during the cooking process of the air fryer, thereby achieving the effect of reducing noise during the entire cooking process.

[0169] Optionally, the cooking data includes the temperature inside the cooking cavity, i.e., when the temperature inside the cooking cavity reaches the power adjustment temperature, the air fryer does not need a high input power. Since the input power of the air fryer is reduced, the heat generation of modules such as IGBT is reduced. Therefore, the speed of the cooling fan can be reduced, thereby meeting the heat dissipation requirements while reducing the duration of loud noise generated during the air fryer cooking process.

[0170] Optionally, the air fryer also includes an NTC (thermistor), which is located inside the cooking cavity and is used to detect the temperature inside the cooking cavity.

[0171] Optionally, the cooking data includes the degree of cooking. It is understood that the cooking program includes multiple cooking stages, and different cooking stages correspond to different input power. Therefore, the speed of the cooling fan can be changed accordingly.

[0172] In some embodiments, the electrical control unit may optionally include an electromagnetic component and an electrical control board, the cooking fan includes a fan blade opposite to the electromagnetic component, at least a portion of the fan blade is magnetically conductive, and the airflow generated by the cooling fan can flow to the electromagnetic component and / or the electrical control board.

[0173] In this embodiment, since the electromagnetic component is opposite to the fan blades, and at least part of the fan blades are magnetic, the electromagnetic component generates an alternating magnetic field when energized. Under the influence of this alternating magnetic field, the magnetically conductive fan blades opposite the electromagnetic component heat up. This self-heating of the fan blades heats the surrounding air. Simultaneously, the fan blades rotate within the cooking chamber, carrying away heat to form a hot airflow, dissipating the heat generated by the fan blades to cook the food inside the cooking chamber. Through the interaction between the electromagnetic component and the magnetically conductive fan blades, the fan blades can rapidly increase in temperature within a short time. Furthermore, the rapid rotation of the fan blades generates hot air within the cooking chamber, which improves the cooking efficiency of the air fryer. In other words, the air fryer is an electromagnetically driven heating air fryer. Specifically, the air fryer is either a pull-out type or a flip-top type.

[0174] It is understandable that the fan blades of electromagnetic heating generate a lot of heat, which will be transferred to the electromagnetic components. The performance of the electromagnetic components will be reduced due to high temperature, so timely heat dissipation is required. However, the heat dissipation method of ordinary cooling fans that share a drive shaft with the drive components of cooking fans cannot cool down in time. In addition, the electronic control board includes IGBTs and bridge rectifiers, which have a complex structure. Therefore, a separate cooling fan is required to dissipate heat from the electromagnetic components and / or the electronic control board.

[0175] According to a second aspect of the present invention, the present invention provides a control device for an air fryer, the air fryer including a cooking cavity, a hot air assembly, an electronic control unit, and a cooling fan, the hot air assembly being used to deliver hot air into the cooking cavity, the hot air assembly including a cooking fan, the airflow generated by the cooling fan being able to flow to the electronic control unit, the control device including: a processing unit for detecting the working data of the air fryer and adjusting the rotation speed of the cooling fan according to the working data; wherein, the driving component of the cooling fan is different from the driving component of the cooking fan.

[0176] The technical solution of this application proposes a control device for an air fryer, wherein the hot air assembly can deliver hot air into the cooking cavity to heat and cook the food inside the cooking cavity, thereby achieving the air frying function.

[0177] When the cooling fan is working, the airflow generated can flow to the electrical components to remove the heat from the surface of the electrical components, thereby reducing the probability of electrical component failure and extending the service life of the electrical components and the air fryer.

[0178] The operating data of the air fryer is measured, optionally including at least one of the following: power, temperature inside the heat dissipation chamber where the electrical control unit is located, and cooking data. It is understood that different air fryer power outputs result in different heat generation from the power module on the control board, thus requiring different levels of heat dissipation. Furthermore, the temperature inside the heat dissipation chamber, the temperature inside the cooking chamber, cooking time, or cooking program are all factors that affect the degree of heat dissipation.

[0179] The cooling fan speed is adjusted based on operating data. For example, when the temperature inside the cooling chamber has not reached the set temperature, the required heat dissipation is lower, and the cooling fan can maintain a lower speed. Alternatively, once the temperature inside the cooking chamber reaches the preset temperature, the air fryer's input power is reduced, decreasing the heat generated by the power module on the control board. In this case, the cooling fan speed can be reduced. In other words, the cooling fan speed is adjusted according to the required heat dissipation based on different factors during the air fryer's operation. This means that throughout the cooking process, the cooling fan speed can be reduced under certain conditions, preventing it from constantly operating at a high speed and reducing the duration of loud noise. This ultimately reduces noise throughout the cooking process and improves the overall noise experience.

[0180] Because the driving components of the cooling fan and the cooking fan are different, adjusting the speed of the cooling fan will not affect the cooking effect of the food.

[0181] In some embodiments, the processing unit is optionally configured to detect the input power of the air fryer and adjust the speed of the cooling fan according to the input power.

[0182] In this embodiment, it is understood that different types or quantities of ingredients, different cooking modes, and different input power levels result in different cooking modes. Furthermore, different input power levels in the air fryer lead to different heat generation from modules such as the IGBT (Insulated Gate Bipolar Transistor). Different fan speeds also result in different cooling capacities. In other words, the input power is matched to the fan speed. For example, when the input power is high, meaning the air fryer starts operating at a higher power, the IGBT and other modules generate more heat, requiring the fan to have better cooling capacity, i.e., increasing the fan speed to ensure the stability of the air fryer's operation. When the air fryer starts operating at a lower power, the IGBT and other modules generate less heat, allowing the fan to operate at a lower speed. This satisfies the cooling requirements while preventing the fan from constantly operating at a high speed, reducing the duration of excessive noise.

[0183] In some embodiments, the processing unit is optionally configured to control the cooling fan to operate at a first speed when the input power is greater than or equal to a set power; the processing unit is further configured to control the cooling fan to operate at a second speed when the input power is less than the set power, the second speed being less than the first speed.

[0184] In this embodiment, when the input power is greater than or equal to the set power, that is, when the air fryer starts working at the set power, the cooling fan operates at a higher speed to ensure effective heat dissipation of the electrical components and improve the reliability of the air fryer.

[0185] When the air fryer operates at a power lower than the set power, the heat generated by the electronic control components is relatively low. Therefore, the speed of the cooling fan can be reduced accordingly to meet the heat dissipation requirements while reducing the noise during the air fryer cooking process.

[0186] Optionally, the power can be set to the rated power.

[0187] Optionally, the speed can be reduced by a corresponding percentage based on the percentage of input power, or the speed can be reduced in stages to simplify the speed reduction logic. For example, when the air fryer is running with an input power of 1000W, the corresponding fan speed is 1000rpm; when the air fryer is running with an input power of 500W, the corresponding fan speed is 500rpm.

[0188] Optionally, the second speed V2 and the first speed V1 satisfy 1 / 2(V1)≤V2≤2 / 3(V1), which helps to simplify the control logic and reduce control costs.

[0189] In some embodiments, the air fryer may optionally include a heat dissipation cavity, an electrical control unit located inside the heat dissipation cavity, a heat dissipation fan connected to the heat dissipation cavity, and a processing unit specifically configured to detect temperature parameters inside the heat dissipation cavity and adjust the speed of the heat dissipation fan according to the temperature parameters inside the heat dissipation cavity.

[0190] In this embodiment, the air fryer is further defined as including a heat dissipation cavity. Specifically, the electrical control unit is located inside the heat dissipation cavity, and the heat dissipation fan is connected to the heat dissipation cavity. Optionally, the air fryer also includes an air inlet and an air outlet, either of which is connected to the heat dissipation cavity. When the heat dissipation fan is running, the airflow enters the heat dissipation cavity from the air inlet and flows out through the air outlet, which can carry away the heat on the surface of the electrical control unit, thereby achieving heat dissipation of the electrical control unit and improving the reliability of the air fryer.

[0191] Understandably, the total cooking time of an air fryer varies depending on the type of food, resulting in different temperature rises in the electrical components. For example, when baking egg tarts or chicken wings, the maximum temperature reached by the IGBT and other modules is not very high after the entire process. However, when baking frozen foods like frozen fries, the maximum temperature reached by the IGBT and other modules is very high.

[0192] The speed of the cooling fan is adjusted according to the temperature parameters inside the cooling cavity. In other words, the speed of the cooling fan is increased only when the temperature parameters inside the cooling cavity meet certain conditions to meet the cooling requirements. Before the temperature parameters reach a certain condition, the cooling fan runs at a lower speed, which can meet the cooling requirements while reducing the duration of loud noise, thereby reducing the noise during the entire cooking process and improving the noise experience.

[0193] Optionally, the air fryer includes a temperature sensing element to detect temperature parameters within the heat dissipation cavity.

[0194] Optionally, the temperature sensor is configured to be located close to the control board. Optionally, the air fryer also includes a heat sink located on the control board, with the temperature sensor configured to be located close to the heat sink.

[0195] Optionally, the temperature sensing element includes an NTC.

[0196] In some embodiments, the processing unit is specifically configured to control the cooling fan to operate at a third speed when the temperature inside the heat dissipation cavity reaches a set temperature and / or the temperature rise rate inside the heat dissipation cavity reaches a set rate; the processing unit is also specifically configured to control the cooling fan to operate at a fourth speed when the temperature inside the heat dissipation cavity is lower than the set temperature and the temperature rise rate inside the heat dissipation cavity is lower than the set rate, wherein the fourth speed is lower than the third speed.

[0197] In this embodiment, optionally, the set temperature T is 1 / 2 to 2 / 3 of the IGBT's safe temperature. Specifically, when the temperature inside the heat dissipation cavity rises to the set temperature T, the rotation speed of the cooling fan is increased to meet the heat dissipation requirements. And / or, when the rate of temperature rise inside the heat dissipation cavity is abnormal, the rotation speed of the cooling fan is increased to meet the heat dissipation requirements. For example, normally it takes time t to reach 1 / 2 of the set temperature T, but if it is abnormally fast, reaching 1 / 2t to 2 / 3t in only 1 / 2t to 2 / 3t time, it indicates that the rate of temperature rise inside the heat dissipation cavity is abnormal.

[0198] When the temperature inside the heat dissipation cavity does not reach the T value and the temperature rise rate is not abnormal, the heat dissipation fan is controlled to run at a lower speed. This can meet the heat dissipation requirements while reducing the duration of loud noise, thereby reducing the noise during the entire cooking process.

[0199] In some embodiments, the processing unit is optionally configured to detect cooking data from the air fryer and adjust the speed of the cooling fan based on the cooking data.

[0200] In this embodiment, the speed of the cooling fan is adjusted according to the cooking data. It can be understood that the air fryer starts working with a large input power. When the temperature inside the cooking cavity reaches the preset temperature, the input power needs to be reduced to lower the heating temperature inside the cooking cavity in order to meet the cooking requirements of the food. Reducing the input power will reduce the heat generation of the electrical control. At this time, the cooling fan can be matched with a lower speed to meet the heat dissipation requirements while reducing the duration of generating large noise.

[0201] In some embodiments, the processing unit is specifically configured to reduce the speed of the cooling fan when the cooking data reaches a set condition.

[0202] In this embodiment, it can be understood that the air fryer starts working with a large input power. When the temperature inside the cooking cavity reaches the preset temperature (set condition), the input power needs to be reduced to lower the heating temperature inside the cooking cavity in order to meet the cooking requirements of the food. Reducing the input power will reduce the heat generation of the electrical control. At this time, the cooling fan can be matched with a lower speed to meet the heat dissipation requirements while reducing the duration of generating large noise.

[0203] In some embodiments, the processing unit may optionally be further configured to reduce input power.

[0204] In this embodiment, if the input power remains high after the cooking data reaches the set conditions, reducing the speed of the cooling fan will not meet the heat dissipation requirements, thus reducing the reliability of the air fryer. In other words, by matching the input power with the speed of the cooling fan, once the cooking data reaches the set conditions, the air fryer no longer requires high input power. Because the input power of the air fryer decreases, the heat generated by modules such as the IGBT decreases, thus allowing the speed of the cooling fan to be reduced. This satisfies the heat dissipation requirements while reducing the duration of loud noise during the air fryer's cooking process, thereby reducing noise throughout the entire cooking process.

[0205] In some embodiments, the processing unit is optionally configured to determine the reduced input power as a first power when the amount of food in the cooking cavity is greater than or equal to a set amount; the processing unit is further configured to determine the reduced input power as a second power when the amount of food in the cooking cavity is less than a set amount, wherein the second power is less than the first power.

[0206] In this embodiment, it is understood that the required heating power varies depending on the amount of food to be cooked. Therefore, determining the reduced input power based on the amount of food can reduce the duration of high noise in the air fryer while ensuring the cooking effect of the food in the cooking cavity, which is beneficial to further improving the user experience.

[0207] Specifically, if the amount of food to be cooked in the cooking chamber is large, reduce the input power of the air fryer to the first power, such as 1500W. If the amount of food to be cooked in the cooking chamber is small, reduce the input power of the air fryer to the second power, such as 1000W.

[0208] Optionally, the input power includes 2000W, 1500W, 1000W, or 500W. Alternatively, the input power includes 80%P, 50%P, or 20%P, where P is the input power.

[0209] In some embodiments, the cooking data may optionally include at least one of the temperature inside the cooking cavity, cooking time, and cooking procedure.

[0210] In this embodiment, optionally, the cooking data includes cooking time. That is, when the cooking time of the air fryer reaches the set time, it indirectly indicates that the temperature inside the cooking cavity has reached the set temperature. At this time, the air fryer does not need high input power. Since the input power of the air fryer is reduced, the heat generation of modules such as IGBT is reduced. Therefore, the speed of the cooling fan can be reduced, thereby meeting the heat dissipation requirements while reducing the duration of loud noise generated during the cooking process of the air fryer, thereby achieving the effect of reducing noise during the entire cooking process.

[0211] Optionally, the cooking data includes the temperature inside the cooking cavity, i.e., when the temperature inside the cooking cavity reaches the power adjustment temperature, the air fryer does not need a high input power. Since the input power of the air fryer is reduced, the heat generation of modules such as IGBT is reduced. Therefore, the speed of the cooling fan can be reduced, thereby meeting the heat dissipation requirements while reducing the duration of loud noise generated during the air fryer cooking process.

[0212] Optionally, the air fryer also includes an NTC (thermistor), which is located inside the cooking cavity and is used to detect the temperature inside the cooking cavity.

[0213] Optionally, the cooking data includes the degree of cooking. It is understood that the cooking program includes multiple cooking stages, and different cooking stages correspond to different input power. Therefore, the speed of the cooling fan can be changed accordingly.

[0214] In some embodiments, the electrical control unit may optionally include an electromagnetic component and an electrical control board, the cooking fan includes a fan blade opposite to the electromagnetic component, at least a portion of the fan blade is magnetically conductive, and the airflow generated by the cooling fan can flow to the electromagnetic component and / or the electrical control board.

[0215] In this embodiment, since the electromagnetic component is opposite to the fan blades, and at least part of the fan blades are magnetic, the electromagnetic component generates an alternating magnetic field when energized. Under the influence of this alternating magnetic field, the magnetically conductive fan blades opposite the electromagnetic component heat up. This self-heating of the fan blades heats the surrounding air. Simultaneously, the fan blades rotate within the cooking chamber, carrying away heat to form a hot airflow, dissipating the heat generated by the fan blades to cook the food inside the cooking chamber. Through the interaction between the electromagnetic component and the magnetically conductive fan blades, the fan blades can rapidly increase in temperature within a short time. Furthermore, the rapid rotation of the fan blades generates hot air within the cooking chamber, which improves the cooking efficiency of the air fryer. In other words, the air fryer is an electromagnetically driven heating air fryer. Specifically, the air fryer is either a pull-out type or a flip-top type.

[0216] It is understandable that the fan blades of electromagnetic heating generate a lot of heat, which will be transferred to the electromagnetic components. The performance of the electromagnetic components will be reduced due to high temperature, so timely heat dissipation is required. However, the heat dissipation method of ordinary cooling fans that share a drive shaft with the drive components of cooking fans cannot cool down in time. In addition, the electronic control board includes IGBTs and bridge rectifiers, which have a complex structure. Therefore, a separate cooling fan is required to dissipate heat from the electromagnetic components and / or the electronic control board.

[0217] like Figure 5As shown, according to a third aspect of the present invention, the present invention provides a control device 500 for an air fryer, comprising: a controller 504 and a memory 502, wherein the memory 502 stores a program or instructions, and the controller 504, when executing the program or instructions in the memory 502, implements the steps of any of the methods described above. Therefore, the control device 500 for the air fryer possesses all the beneficial effects of the control methods for air fryers described above.

[0218] According to a fourth aspect of the present invention, a readable storage medium is provided on which a program or instructions are stored, which, when executed by a processor, implement the steps of any of the methods described above. Therefore, this readable storage medium possesses all the beneficial effects of the air fryer control method described above.

[0219] According to a fifth aspect of the present invention, an air fryer 100 is provided, comprising: an air fryer control device as described in any of the preceding claims; or a readable storage medium as described above. Therefore, the air fryer 100 possesses all the beneficial effects of the air fryer control device or the readable storage medium described in any of the preceding claims.

[0220] like Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, in some embodiments, the air fryer 100 may optionally include: a pot body 110, the pot body 110 having a cooking cavity 111; a hot air assembly 120, disposed in the pot body 110, for supplying hot air to the cooking cavity 111, the hot air assembly 120 including a cooking fan 121; an electrical control 130, disposed in the pot body 110; and a cooling fan 150, disposed in the pot body 110, the airflow generated by the cooling fan 150 being able to flow to the electrical control 130.

[0221] Optionally, the cooking fan 121 includes a fan blade 122, and the electrical control 130 includes an electromagnetic component 131 and an electrical control board 132. The fan blade 122 is rotatably disposed in the cooking cavity 111. At least a portion of the fan blade 122 is magnetically conductive. The electromagnetic component 131 is opposite to the fan blade 122, and the electrical control board 132 is electrically connected to the electromagnetic component 131. The airflow generated by the cooling fan 150 can flow to at least one of the electrical control board 132 and the electromagnetic component 131.

[0222] Since the electromagnetic component 131 is opposite to the fan blade 122, and at least part of the fan blade 122 is magnetic, the electromagnetic component 131 generates an alternating magnetic field when energized. Under the influence of this alternating magnetic field, the magnetically conductive fan blade 122 opposite to the electromagnetic component 131 heats up. This self-heating of the fan blade 122 heats the surrounding air. Simultaneously, the fan blade 122 rotates within the cooking chamber 111, carrying away heat to form a hot airflow, dissipating the heat generated by the fan blade 122 to heat and cook the food within the cooking chamber 111. Through the interaction between the electromagnetic component 131 and the magnetically conductive fan blade 122, the fan blade 122 can rapidly increase in temperature within a short time. Furthermore, the rapid rotation of the fan blade 122 generates hot air within the cooking chamber 111, which improves the cooking efficiency of the air fryer 100. Therefore, the air fryer 100 is an air fryer that utilizes electromagnetic heating. The air fryer 100 can be either a pull-out type or a flip-top type.

[0223] Optionally, the air fryer 100 also includes a temperature detection element 160, which is disposed within the heat dissipation cavity 112 and is used to detect the temperature within the heat dissipation cavity 112. The temperature detection element 160 includes an NTC (Natural Temperature Coefficient).

[0224] In the description of this specification, all quantities involving temperature, including expressions, are in degrees Celsius. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance unless otherwise expressly specified and limited. The terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral connection; it can mean a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0225] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0226] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A control method for an air fryer, characterized in that, The air fryer includes a cooking cavity, a hot air assembly, electronic controls, and a cooling fan. The hot air assembly is used to deliver hot air into the cooking cavity. The hot air assembly includes a cooking fan, and the airflow generated by the cooling fan can flow to the electronic controls. The control method includes: The operating data of the air fryer is detected, and the speed of the cooling fan is adjusted according to the operating data; The driving component of the cooling fan is different from that of the cooking fan.

2. The control method for an air fryer according to claim 1, characterized in that, The process of detecting the operating data of the air fryer and adjusting the speed of the cooling fan based on the operating data specifically includes: The input power of the air fryer is detected, and the speed of the cooling fan is adjusted according to the input power.

3. The control method for an air fryer according to claim 2, characterized in that, The step of adjusting the speed of the cooling fan according to the input power specifically includes: When the input power is greater than or equal to the set power, the cooling fan is controlled to run at a first speed. When the input power is less than the set power, the cooling fan is controlled to operate at a second speed, which is less than the first speed.

4. The control method for an air fryer according to claim 1, characterized in that, The air fryer also includes a heat dissipation cavity, the electronic control unit is located inside the heat dissipation cavity, the heat dissipation fan is connected to the heat dissipation cavity, and the step of detecting the working data of the air fryer and adjusting the speed of the heat dissipation fan according to the working data specifically includes: The temperature parameters inside the heat dissipation cavity are detected, and the rotation speed of the cooling fan is adjusted according to the temperature parameters inside the heat dissipation cavity.

5. The control method for an air fryer according to claim 4, characterized in that, The step of adjusting the speed of the cooling fan according to the temperature parameters inside the heat dissipation cavity specifically includes: When the temperature inside the heat dissipation cavity reaches the set temperature, and / or the temperature rise rate inside the heat dissipation cavity reaches the set rate, the heat dissipation fan is controlled to run at the third speed. If the temperature inside the heat dissipation cavity is lower than the set temperature and the temperature rise rate inside the heat dissipation cavity is lower than the set rate, the heat dissipation fan is controlled to run at a fourth speed, which is lower than the third speed.

6. The control method for an air fryer according to claim 2, characterized in that, The process of detecting the operating data of the air fryer and adjusting the speed of the cooling fan based on the operating data specifically includes: The cooking data of the air fryer is detected, and the speed of the cooling fan is adjusted according to the cooking data.

7. The control method for an air fryer according to claim 6, characterized in that, Adjusting the speed of the cooling fan based on the cooking data specifically includes: When the cooking data meets the set conditions, the speed of the cooling fan is reduced.

8. The control method for an air fryer according to claim 7, characterized in that, Before reducing the speed of the cooling fan, the following is also included: Reduce the input power.

9. The control method for an air fryer according to claim 8, characterized in that, The reduction of the input power specifically includes: If the amount of food in the cooking cavity is greater than or equal to a set amount, the reduced input power is determined to be the first power. If the amount of food in the cooking cavity is less than the set amount, the reduced input power is determined to be the second power, which is less than the first power.

10. The control method for an air fryer according to claim 6, characterized in that, The cooking data includes at least one of the following: temperature inside the cooking cavity, cooking time, and cooking procedure.

11. The control method for an air fryer according to any one of claims 1 to 10, characterized in that, The electrical control unit includes an electromagnetic component and an electrical control board. The cooking fan includes a fan blade, which is opposite to the electromagnetic component. At least a portion of the fan blade is magnetically conductive. The airflow generated by the cooling fan can flow to the electromagnetic component and / or the electrical control board.

12. A control device for an air fryer, characterized in that, The air fryer includes a cooking cavity, a hot air assembly, electronic controls, and a cooling fan. The hot air assembly is used to deliver hot air into the cooking cavity. The hot air assembly includes a cooking fan, and the airflow generated by the cooling fan can flow to the electronic controls. The control device includes: The processing unit is used to detect the working data of the air fryer and adjust the speed of the cooling fan according to the working data; The driving component of the cooling fan is different from that of the cooking fan.

13. A control device for an air fryer, characterized in that, include: A controller and a memory, wherein the memory stores a program or instructions, and the controller, when executing the program or instructions in the memory, implements the steps of the method as described in any one of claims 1 to 11.

14. A readable storage medium, characterized in that, A program or instructions are stored on the readable storage medium, which, when executed by a processor, implement the steps of the method as described in any one of claims 1 to 11.

15. An air fryer, characterized in that, include: The control device for the air fryer as described in claim 12 or 13; or The readable storage medium as described in claim 14.

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