Control method of air fryer

Abstract

The invention provides an air fryer control method which comprises the steps that after a cooking instruction is received, the first temperature T1 of a cooking cavity is measured through a temperature measuring assembly; controlling the fan to operate and the heating piece not to operate; measuring a second temperature T2 of the cooking cavity through the temperature measuring assembly; according to the first temperature T1 and the second temperature T2, the temperature change trend of the cooking cavity is determined; according to the temperature change trend of the cooking cavity, the initial temperature state of the food materials in the cooking cavity is determined; and executing corresponding operation according to the initial temperature state of the food materials in the cooking cavity. In the application, the initial temperature state of the food material is determined according to the temperature change trend presented in the air fryer before and after the fan is started. Compared with the prior art, the initial temperature state of the food material can be determined more accurately.

Description

Technical Field

[0001] The present application relates to the technical field of air fryers, and in particular to a control method for an air fryer. Background Art

[0002] With the development of science and technology, air fryers are more and more widely used in people's daily life. At present, the air fryer is provided with cooking parameters for each ingredient, and when cooking starts, the air fryer will cook the corresponding ingredients according to the preset cooking parameters.

[0003] However, in reality, each ingredient may have a different temperature state, which results in an unstable cooking effect when the same ingredients at different temperature states are cooked using the same cooking parameters, which greatly reduces the user experience. For example, when chicken wings at room temperature and frozen are cooked using the same cooking parameters, the chicken wings at room temperature will achieve a good cooking effect, while the chicken wings at frozen will not achieve a very ideal cooking effect, and may even not be cooked well.

[0004] In the prior art, the temperature change of the air fryer cavity before and after the food is put into the air fryer is directly read to determine the temperature state of the food, and then the corresponding operation is performed according to the temperature state of the food, so as to ensure that the food in different temperature states can obtain a stable cooking effect. However, when the temperature state of the food is determined by the above method, it is greatly affected by the ambient temperature. For example, when the air fryer is used in a low temperature environment, even if the food at room temperature is put into the air fryer, the temperature of the air fryer cavity will drop. At this time, when the temperature state of the food is determined according to the temperature change of the air fryer cavity before and after the food is put into the air fryer, a large error will occur.

[0005] It can be seen from this that the temperature state of the food cannot be accurately determined using the methods in the prior art, and it is still difficult to ensure the stability of the cooking effect for food in different temperature states. Summary of the invention

[0006] The purpose of the embodiments of the present application is to provide a control method for an air fryer, which can accurately determine the initial temperature state of ingredients.

[0007] The present application provides a control method for an air fryer, wherein the air fryer comprises a shell, a cooking cavity and a hot air component are arranged in the shell, the hot air component delivers hot air into the cooking cavity, the hot air component comprises a heating element and a fan, and a temperature measuring component is also arranged in the cooking cavity;

[0008] The control methods of the air fryer include:

[0009] After receiving the cooking instruction, measuring the first temperature T1 of the cooking cavity by the temperature measuring component;

[0010] Control the fan to run, but the heating element not to run;

[0011] Measuring a second temperature T2 of the cooking cavity by a temperature measuring component;

[0012] Determining a temperature change trend of the cooking cavity according to the first temperature T1 and the second temperature T2;

[0013] Determine the initial temperature state of the food in the cooking cavity according to the temperature change trend of the cooking cavity;

[0014] Perform corresponding operations according to the initial temperature of the food in the cooking chamber.

[0015] In one embodiment, according to the initial temperature state of the food in the cooking chamber, corresponding operations are performed, including:

[0016] If the initial temperature state of the food in the cooking cavity is the standard temperature state, the heating element is controlled to operate, and the food in the cooking cavity is cooked according to the preset standard cooking parameters;

[0017] If the initial temperature state of the food in the cooking cavity is a non-standard temperature state, adjusting the standard cooking parameters to obtain adjusted cooking parameters;

[0018] Control the operation of the heating element and cook the food in the cooking cavity according to the adjusted cooking parameters.

[0019] In one embodiment, after controlling the fan to run, the control method of the air fryer further includes:

[0020] Determine whether the running time of the fan reaches the preset time;

[0021] If the running time of the fan reaches a preset time, the second temperature T2 of the cooking cavity is measured by the temperature measuring component.

[0022] In one embodiment, determining the temperature change trend of the cooking cavity according to the first temperature T1 and the second temperature T2 includes:

[0023] The temperature parameter is calculated according to the first temperature T1 and the second temperature T2; wherein the temperature parameter is T1-T2, or the temperature parameter is Wherein, b is the interval time between measuring the first temperature T1 and the second temperature T2;

[0024] The temperature parameter is compared with a preset threshold value, and the temperature change trend in the cooking cavity is determined according to the comparison result.

[0025] In one embodiment, before comparing the temperature parameter with the preset threshold, the control method of the air fryer further includes:

[0026] The preset threshold is determined according to the temperature interval in which the first temperature T1 is located; wherein each temperature interval corresponds to a preset threshold.

[0027] In one embodiment, the standard cooking parameters include a standard cooking time and a standard cooking temperature; the non-standard temperature state includes a high temperature state and a low temperature state;

[0028] Make adjustments to standard cooking parameters, including:

[0029] If the initial temperature state of the food in the cooking cavity is a high temperature state, reducing the standard cooking time, or reducing the standard cooking temperature to obtain adjusted cooking parameters;

[0030] If the initial temperature state of the food in the cooking cavity is a low temperature state, increase the standard cooking time, or increase the standard cooking temperature to adjust the cooking parameters.

[0031] In one embodiment, the air fryer further includes a display component; and the control method of the air fryer further includes:

[0032] After receiving the cooking instruction, the standard cooking parameters are displayed through the display component;

[0033] and / or;

[0034] After obtaining the adjusted cooking parameters, the adjusted cooking parameters are displayed through the display component.

[0035] In one embodiment, determining the initial temperature state of food in the cooking cavity according to the temperature change trend of the cooking cavity includes:

[0036] If the temperature change trend of the cooking cavity shows an upward trend or a downward trend, the initial temperature state of the food in the cooking cavity is a non-standard temperature state;

[0037] If the temperature change trend of the cooking cavity does not show an upward trend or a downward trend, the initial temperature state of the food in the cooking cavity is the standard temperature state.

[0038] In one embodiment, according to the initial temperature state of the food in the cooking chamber, corresponding operations are performed, including:

[0039] Output prompt information; wherein the prompt information is used to indicate the initial temperature state of the food in the cooking cavity.

[0040] In one embodiment, after determining the initial temperature state of the food in the cooking chamber, the method further includes:

[0041] Increase the fan speed.

[0042] In the present application scheme, after receiving the cooking instruction, the first temperature of the cooking cavity is first measured by the temperature measuring component; after the first temperature is measured successfully, the fan is controlled to run; then, during the operation of the fan, the second temperature of the cooking cavity is measured by the temperature measuring component, and after the second temperature is measured successfully, the temperature change trend of the cooking cavity is determined based on the first temperature and the second temperature, and then the initial temperature state of the food in the cooking cavity is determined based on the temperature change trend of the cooking cavity.

[0043] It can be seen from the above content that in this application, the initial temperature state of the food is determined according to the temperature change trend in the air fryer before and after the fan is turned on. After the fan is started, the food in different temperature states in the air fryer will fully exchange heat with the air inside the air fryer, so that the air fryer presents different second temperatures. When the first temperature is the same, the difference in the second temperature will cause the air fryer to present different temperature change trends. Therefore, according to the temperature change trend in the air fryer, the initial temperature state of the food can be effectively determined. At the same time, when the initial temperature state of the food is determined according to the temperature change trend in the air fryer, it is less affected by the ambient temperature, so compared with the prior art, the initial temperature state of the food can be more accurately determined in this application. Furthermore, in the case where the initial temperature state of the food can be accurately determined, the cooking parameters of the food can also be accurately adjusted to fully ensure that the food with different initial temperature states can obtain good cooking effects and ensure the user experience.

[0044] Furthermore, starting the fan before cooking the ingredients can remove some of the moisture from the ingredients, thereby shortening the subsequent cooking time and improving the cooking efficiency of the ingredients.

[0045] In addition, in the prior art, when cooking the food, the heating element and the fan are started at the same time. However, a lot of oil will accumulate inside the air fryer. The presence of oil will cause the fan to be blocked and unable to start smoothly when the heating element and the fan are started at the same time, which will easily cause the heating element to fuse. In the present application, before cooking the food, the fan is started in advance, which can effectively prevent the heating element from fusing and protect the heating element. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings required for use in the embodiments of the present application are briefly introduced below.

[0047] Figure 1 A connection diagram of an air fryer provided in one embodiment of the present application;

[0048] Figure 2 A schematic diagram of the structure of a control component provided in one embodiment of the present application;

[0049] Figure 3 A schematic diagram of a flow chart of a control method for an air fryer provided in one embodiment of the present application;

[0050] Figure 4 A detailed flowchart of step S240 is provided for one embodiment of the present application.

[0051] Reference numerals:

[0052] 1- air fryer; 10- hot air component; 11- heating element; 12- fan; 20- temperature measuring component; 100- control component; 110- bus; 120- processor; 130- memory. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0054] Similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0055] Please refer to Figure 1 , which is a connection diagram of the air fryer 1 provided in one embodiment of the present application. Figure 2 , which is a schematic diagram of the structure of the control component 100 provided in one embodiment of the present application. Figure 1 As shown, the air fryer 1 includes a hot air component 10 and a temperature measuring component 20. The hot air component 10 includes a heating element 11 and a fan 12; the air fryer 1 has a shell and a cooking cavity for holding food in the shell, the hot air component 10 is arranged in the shell, and the hot air component 10 is used to deliver hot air to the cooking cavity; the cooking cavity is provided with a temperature measuring component 20, and the temperature measuring component 20 is used to measure the temperature of the cooking cavity. Exemplarily, the temperature measuring component 20 can be a temperature sensor such as NTC.

[0056] like Figure 1 As shown, the air fryer 1 further includes a control component 100, which is connected to the hot air component 10 and the temperature measuring component 20 respectively. The control component 100 is used to execute the control method of the air fryer 1 provided in the following embodiment. Specifically, Figure 2 As shown, the control component 100 includes: at least one processor 120 and a memory 130, Figure 2 A processor 120 is taken as an example. The processor 120 and the memory 130 are connected via a bus 110. The memory 130 stores instructions that can be executed by the processor 120, and the instructions are executed by the processor 120.

[0057] The memory 130 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable red-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, disk or optical disk.

[0058] Please refer to Figure 3 , which is a flow chart of a control method of an air fryer 1 provided in an embodiment of the present application. Figure 3 As shown, the method includes the following steps S210 to S260. The working principle of the method is explained in detail below:

[0059] Step S210: After receiving the cooking instruction, the first temperature T1 of the cooking cavity is measured by the temperature measuring component 20.

[0060] In this step, when the user uses the air fryer 1 to cook food, the food is first placed in the cooking cavity. After the food is successfully placed, a cooking instruction is sent to the control component 100 through a software or hardware trigger button set on the air fryer 1. After receiving the cooking instruction, the control component 100 controls the temperature measuring component 20 to measure the temperature of the cooking cavity. After measuring the temperature of the cooking cavity, the temperature measuring component 20 can send the measured first temperature T1 to the control component 100. After receiving the first temperature T1, the control component 100 can continue to execute the following step S220.

[0061] Step S220: Control the fan 12 to operate and the heating element 11 to not operate.

[0062] In this step, after receiving the first temperature T1, the control component 100 can control the fan 12 to run. Specifically, the control component 100 can control the fan 12 to run at a fixed speed. Exemplarily, the fixed speed can be 1000r / min to 2000r / min. After the fan 12 runs, the following step S230 can be continued.

[0063] Step S230: measuring the second temperature T2 of the cooking cavity through the temperature measuring component 20.

[0064] In this step, during the operation of the fan 12, the control component 100 can control the temperature measurement component 20 to measure the temperature of the cooking cavity. After the temperature measurement component 20 measures the temperature of the cooking cavity, it can send the measured second temperature T2 to the control component 100. After receiving the second temperature T2, the control component 100 can continue to execute the following step S240.

[0065] Step S240: Determine the temperature change trend of the cooking cavity according to the first temperature T1 and the second temperature T2.

[0066] Among them, the first temperature T1 is the temperature in the cooking cavity before the fan 12 is turned on, and the second temperature T2 is the temperature in the cooking cavity after the fan 12 is turned on.

[0067] In this step, after receiving the second temperature T2, the control component 100 can determine the temperature change trend of the cooking cavity according to the first temperature T1 and the second temperature T2. Specifically, the control component 100 can compare the numerical values of the first temperature T1 and the second temperature T2, and then determine the temperature change trend of the cooking cavity according to the comparison result. After determining the temperature change trend of the cooking cavity, it can continue to execute step S250. Exemplarily, if the comparison result shows that T1 = T2, or T1 ≈ T2, then the temperature change trend in the cooking cavity does not show an upward trend or a downward trend and remains basically stable; if the comparison result shows that T1 ≠ T2, then the temperature change trend in the cooking cavity shows an upward trend or a downward trend. Among them, if the comparison result shows that T1 < T2, then the temperature change trend in the cooking cavity shows an upward trend; if the comparison result shows that T1 > T2, then the temperature change trend in the cooking cavity shows a downward trend.

[0068] Step S250: Determine the initial temperature state of the ingredients in the cooking cavity according to the temperature change trend of the cooking cavity.

[0069] After the fan 12 is started, ingredients with different initial temperature states will exchange heat with the air in the cooking cavity sufficiently, making the cooking cavity present different second temperatures T2. When the first temperature T1 is the same, the difference in the second temperature T2 will cause the cooking cavity to present different temperature change trends. Therefore, in this step, after the control component 100 determines the temperature change trend of the cooking cavity, it can determine the initial temperature state of the ingredients placed in the cooking cavity according to the temperature change trend.

[0070] Exemplarily, according to the second law of thermodynamics, the specific implementation method of determining the initial temperature state of the ingredients in the cooking cavity according to the temperature change trend of the ingredients in the cooking cavity is explained as follows:

[0071] Among them, the second law of thermodynamics is: Heat can spontaneously transfer from an object with a higher temperature to an object with a lower temperature.

[0072] (1) When low-temperature food is placed in the cooking cavity, if the fan 12 is turned on, according to the second law of thermodynamics, the heat in the cooking cavity will be spontaneously transferred to the food, and the second temperature T2 in the cooking cavity will be lower than the first temperature T1, and the temperature change trend of the cooking cavity will show a downward trend. Therefore, it can be concluded that if the temperature change trend of the cooking cavity shows a downward trend, it indicates that the initial temperature state of the food in the cooking cavity is a low-temperature state.

[0073] (2) When high-temperature food is placed in the cooking cavity, if the fan 12 is turned on, according to the second law of thermodynamics, the heat in the food will be spontaneously transferred to the cooking cavity, and the second temperature T2 in the cooking cavity will be higher than the first temperature T1, and the temperature change trend of the cooking cavity will show an upward trend. Therefore, it can be concluded that if the temperature change trend of the cooking cavity shows an upward trend, it indicates that the initial temperature state of the food in the cooking cavity is a high-temperature state.

[0074] (3) When food at room temperature is placed in the cooking cavity, if the fan 12 is turned on, the heat of the food and the cooking cavity is basically the same, and no heat transfer occurs. The second temperature T2 in the cooking cavity is basically the same as the first temperature T1, and the temperature change trend of the cooking cavity does not show an upward trend or a downward trend, and remains basically stable. Therefore, if the temperature change trend of the cooking cavity does not show an upward trend or a downward trend, it indicates that the initial temperature state of the food in the cooking cavity is a room temperature state.

[0075] It is worth noting that the above-mentioned normal temperature state refers to the temperature of the food in the cooking cavity being substantially equal to the normal temperature; the above-mentioned low temperature state refers to the temperature of the food in the cooking cavity being lower than the normal temperature, at which time the food may be frozen or unfrozen. The above-mentioned high temperature state refers to the temperature of the food in the cooking cavity being higher than the normal temperature. In this application, the above-mentioned normal temperature state is regarded as the standard temperature state, and the high temperature state and the low temperature state are regarded as non-standard temperature states.

[0076] After the initial temperature state is determined, the control component 100 may continue to execute the following step S260.

[0077] Step S260: Execute corresponding operations according to the initial temperature state of the food in the cooking cavity.

[0078] In this step, after determining the initial temperature state of the food, the control component 100 can perform corresponding operations according to the initial temperature state of the food. Exemplarily, the control component 100 can adjust the cooking parameters of the air fryer 1 according to the initial temperature state of the food, and after the cooking parameters are successfully adjusted, the air fryer 1 is controlled to cook the food according to the adjusted cooking parameters until the cooking is completed.

[0079] In the prior art, the initial temperature state of the food is determined only based on the temperature in the cooking cavity before and after the food is placed, which is greatly affected by the ambient temperature and cannot accurately determine the initial temperature state of the food. In the present application, the initial temperature state of the food is determined based on the temperature change trend in the air fryer 1 before and after the fan 12 is turned on. Regardless of the ambient temperature, after the fan 12 is turned on, the food with different initial temperature states will cause the cooking cavity to present different temperature change trends. Therefore, according to the method of the present application, the initial temperature state of the food placed in the cooking cavity can be accurately judged, and the judgment process is not affected by the ambient temperature and has high accuracy. Furthermore, in the case where the initial temperature state of the food can be accurately determined, the cooking parameters of the food can also be accurately adjusted to fully ensure that the food with different initial temperature states can obtain good cooking effects and ensure the user experience.

[0080] Furthermore, starting the fan 12 before cooking the food can remove some of the moisture from the food, thereby shortening the subsequent cooking time and improving the cooking efficiency of the food.

[0081] In addition, in the prior art, when cooking the food, the heating element 11 and the fan 12 are started at the same time. However, a lot of oil will accumulate inside the air fryer 1. The presence of oil causes the fan 12 to be unable to start smoothly due to stalling when the heating element 11 and the fan 12 are started at the same time, which causes the heating element 11 to be easily blown. In the present application, before cooking the food, the fan 12 is started in advance, which can effectively prevent the heating element 11 from being blown and protect the heating element 11.

[0082] In one embodiment, after executing the above step S220 to control the fan 12 to operate, the control component 100 further executes the following step S310:

[0083] Step S310: determining whether the operation time of the fan 12 reaches a preset time.

[0084] In this step, after controlling the fan 12 to run, the control component 100 will continue to determine whether the running time of the fan 12 has reached the preset time. If the judgment result shows that the running time of the fan 12 has not reached the preset time, no operation is performed; if the judgment result shows that the running time of the fan 12 has reached the preset time, the temperature measuring component 20 is controlled to measure the second temperature T2 of the cooking cavity.

[0085] In this embodiment, after the fan 12 runs for a preset time, the second temperature T2 of the cooking cavity is measured by the temperature measuring component 20. It is ensured that the food in the cooking cavity can fully exchange heat with the air in the cooking cavity, and it is ensured that the temperature change trend of the cooking cavity can be accurately determined according to the first temperature T1 and the second temperature T2, and the accuracy of determining the initial temperature state of the food according to the temperature change trend of the cooking cavity is fully guaranteed.

[0086] In one embodiment, please refer to Figure 4 , which is a detailed flow chart of step S240 provided in an embodiment of the present application. Figure 4 As shown, step S240 also includes the following steps S410 to S420.

[0087] Step S410: Calculate a temperature parameter according to the first temperature T1 and the second temperature T2.

[0088] In this step, the control component 100 can calculate the temperature parameter according to the first temperature T1 and the second temperature T2. The temperature parameter is T1-T2, or the temperature parameter is Wherein, b is the interval between measuring the first temperature T1 and the second temperature T2; T1-T2 can represent the temperature change in the b time period. It can represent the temperature change slope per unit time. After the temperature parameter is calculated successfully, the following step S420 can be executed.

[0089] Step S420: Compare the temperature parameter with a preset threshold value, and determine the temperature change trend in the cooking cavity according to the comparison result.

[0090] In this step, after the control component 100 calculates the temperature parameter, it can compare the temperature parameter with the preset threshold value, and then determine the temperature change trend in the cooking cavity according to the comparison result. Exemplarily, there can be multiple preset threshold values, namely, a first preset threshold value, a second preset threshold value, a third preset threshold value and a fourth preset threshold value. If the temperature parameter is greater than or equal to the first preset threshold value, it indicates that the temperature change trend in the cooking cavity presents a downward trend; if the temperature parameter is less than or equal to the second preset threshold value, it indicates that the temperature change trend in the cooking cavity presents an upward trend; if the temperature change trend in the cooking cavity is greater than the third preset threshold value and less than the fourth preset threshold value, it indicates that the temperature change trend in the cooking cavity does not present an upward trend or a downward trend, and basically remains stable. Among them, the third preset threshold value is greater than or equal to the second preset threshold value, the fourth preset threshold value is less than or equal to the first preset threshold value and greater than the third preset threshold value; the fourth preset threshold value and the first preset threshold value are greater than 0, and the second preset threshold value and the third preset threshold value are less than 0.

[0091] It is worth noting that the above-mentioned temperature change trend in the cooking cavity presents an upward trend means that the temperature change trend in the cooking cavity presents a significant upward trend. The temperature change trend in the cooking cavity presents a downward trend means that the temperature change trend in the cooking cavity presents a significant downward trend.

[0092] In one embodiment, before executing the above step S420 to compare the temperature parameter with the preset threshold and determining the temperature change trend in the cooking cavity according to the comparison result, the control component 100 further executes the following step S510:

[0093] Step S510: determining a preset threshold value according to the temperature interval in which the first temperature T1 is located, wherein each temperature interval corresponds to a preset threshold value.

[0094] The control component 100 may store multiple temperature intervals in advance, and each temperature interval corresponds to a corresponding standard threshold. In this step, after receiving the first temperature T1 sent by the temperature measuring component 20, the control component 100 may determine in which temperature interval the first temperature T1 is located, and after the determination is completed, the standard threshold corresponding to the temperature interval where the first temperature T1 is located is used as the preset threshold. The number of preset thresholds is equal to the number of standard thresholds corresponding to each temperature interval. The standard thresholds corresponding to each temperature interval may be different.

[0095] Exemplarily, it is assumed that the preset thresholds include a first preset threshold, a second preset threshold, a third preset threshold and a fourth preset threshold; the control component 100 stores a first standard threshold of 5°C, a second standard threshold of -5°C, a third standard threshold of -2°C and a fourth standard threshold of 2°C corresponding to the temperature range of 1°C to 25°C; the control component 100 also stores a first standard threshold of 10°C, a second standard threshold of -10°C, a third standard threshold of -4°C and a fourth standard threshold of 4°C corresponding to the temperature range above 26°C; if the first temperature is 20°C, the first standard threshold of -5°C is used as the first preset threshold, the second standard threshold of 5°C is used as the second preset threshold, the third standard threshold of -2°C is used as the third preset threshold and the fourth standard threshold of 2°C is used as the fourth preset threshold.

[0096] In one embodiment, the absolute value of the standard threshold value increases as the first temperature increases, and the absolute value of the standard threshold value decreases as the first temperature decreases.

[0097] In the present application, when the initial temperature state of the food is constant and the initial temperature of the cooking cavity, i.e., the first temperature T1, is different, the temperature parameter value will be different. The higher the initial temperature of the cooking cavity, the greater the absolute value of the temperature parameter; the lower the initial temperature of the cooking cavity, the smaller the absolute value of the temperature parameter. If a specified preset threshold is used, the initial temperature state of the food in the cooking cavity cannot be accurately judged. For example, when food in a normal temperature state is placed in a cooking cavity with a higher initial temperature and a normal initial temperature, respectively, after the fan 12 is turned on, the temperature in the cooking cavity with a higher initial temperature will drop significantly, and accordingly, the value of the temperature parameter will be relatively high, while the temperature in the cooking cavity with a normal initial temperature will drop slightly or not drop, and accordingly, the value of the temperature parameter will be relatively low. At this time, if a specified preset threshold is used, it will be mistakenly believed that the temperature in the cooking cavity with a higher initial temperature shows a significant downward trend before and after the fan 12 is turned on, and then it will be mistakenly believed that the food in the cooking cavity with a higher initial temperature is in a low temperature state, resulting in a misjudgment of the initial temperature of the food.

[0098] In this embodiment, multiple temperature intervals are set in advance, and a corresponding standard threshold is set for each temperature interval. Then, the standard threshold corresponding to the threshold interval where the first temperature T1 is located is used as the preset threshold, which improves the accuracy of determining the temperature change trend in the cooking cavity, and further, fully guarantees the accuracy of identifying the initial temperature state of the food. Furthermore, because the initial temperature of the cooking cavity is the ambient temperature in most cases, this embodiment also avoids the influence of the ambient temperature on identifying the initial temperature state of the food.

[0099] In one embodiment, after determining the initial temperature state of the food in the cooking cavity, the control component 100 may execute the following steps S610 to S630.

[0100] Step S610: If the initial temperature state of the food in the cooking cavity is the standard temperature state, control the heating element 11 to operate and cook the food in the cooking cavity according to the preset standard cooking parameters.

[0101] The standard temperature state is the normal temperature state. The air fryer 1 stores standard cooking parameters corresponding to each ingredient; the standard cooking parameters include standard cooking temperature and standard cooking time.

[0102] In this step, if the control component 100 recognizes that the initial temperature state of the food in the cooking cavity is at room temperature, it controls the heating element 11 to operate, and at the same time controls the air fryer 1 to cook the food in the cooking cavity according to the preset standard cooking temperature and standard cooking time until cooking is completed.

[0103] Step S620: If the initial temperature state of the food in the cooking cavity is a non-standard temperature state, the standard cooking parameters are adjusted to obtain adjusted cooking parameters.

[0104] Among them, the non-standard temperature state includes a high temperature state and a low temperature state, and the standard cooking parameters include a standard cooking temperature and a standard cooking time.

[0105] In this step, if the control component 100 recognizes that the initial temperature state of the food in the cooking cavity is a high temperature state or a low temperature state, the standard cooking parameters are adjusted to obtain adjusted cooking parameters.

[0106] The following is a detailed explanation of the specific principles of adjusting cooking parameters according to different situations:

[0107] (1) The initial temperature state of the ingredients is high temperature, the standard cooking time is reduced, and the cooking parameters are adjusted.

[0108] In this embodiment, the standard cooking temperature is kept unchanged, and the cooking parameters are adjusted by reducing the standard cooking time. Specifically, the standard cooking time can be reduced in the following two ways:

[0109] ① Reduce the standard cooking time by difference method.

[0110] In this embodiment, the cooking parameter can be adjusted by subtracting the fixed time e from the standard cooking time. The fixed time e can be determined according to the type of food being cooked. Wherein, whether the cooking process includes a single step or multiple steps, the standard cooking time refers to the cooking time of a single step.

[0111] ② Reduce the standard cooking time by proportional method.

[0112] Will Defined as the food heat coefficient, food heat coefficient Indicates the absolute value of the temperature change slope of the food in the cooking chamber per unit time. The food thermal coefficient threshold is stored in the control component 100 and in, Indicates the thermal coefficient threshold of ingredients under low temperature conditions. Indicates the thermal coefficient threshold of ingredients at room temperature. Indicates the heat coefficient threshold of the food under high temperature state. The time thresholds t2, t3 and t4 are stored in the control component 100; wherein, t4<t3<t2, when the standard cooking temperature is constant and the first temperature T1 in the air fryer 1 is constant, t2 is The time threshold required for cooking low-temperature ingredients under the heat coefficient threshold, t3 is The time threshold required for cooking room temperature ingredients under the heat coefficient threshold, t3 is the standard cooking time, t4 is The time threshold required to cook high-temperature ingredients under the heat coefficient threshold.

[0113] Based on the above definition, in this embodiment, the standard cooking time t3 is subtracted from the standard cooking time t4. in, It is the food thermal coefficient actually calculated by the control component 100 according to the measured first temperature T1 and second temperature T2.

[0114] Among them, no matter the cooking process includes a single step or multiple steps, the above time threshold refers to the time threshold of a single step.

[0115] (2) The initial temperature state of the food is high temperature, and the standard cooking temperature is reduced to obtain adjusted cooking parameters.

[0116] In this embodiment, the standard cooking time is kept unchanged, and the cooking parameters are adjusted by reducing the standard cooking temperature. The cooking temperature is mainly determined by the heating duty cycle of the heating element 11. Assuming that the heating cycle of the heating element 11 is H, and the heating time of the heating element 11 in each heating cycle H is H1, the heating duty cycle Therefore, in this embodiment, the standard cooking temperature can be reduced by reducing the standard heating duty cycle β1 of the heating element 11 corresponding to the standard cooking temperature. Specifically, the heating duty cycle β1 of the heating element 11 corresponding to the standard cooking temperature can be reduced in the following two ways:

[0117] ① Reduce the standard heating duty cycle β1 by difference method.

[0118] The cooking parameters can be adjusted by subtracting the fixed duty cycle f from the heating duty cycle β1, wherein the fixed duty cycle f can be determined according to the type of food being cooked.

[0119] ② Reduce the standard heating duty cycle β1 in a proportional manner.

[0120] Will Defined as the food heat coefficient, food heat coefficient Indicates the absolute value of the temperature change slope of the food in the cooking chamber per unit time. The food thermal coefficient threshold is stored in the control component 100 and in, Indicates the thermal coefficient threshold of ingredients under low temperature conditions. Indicates the thermal coefficient threshold of ingredients at room temperature. Indicates the food heat coefficient threshold under high temperature. The duty cycle threshold β is stored in the control component 100 低温 , β 常温 and β 高温 ; Among them, β 低温 >β 常温 >β 高温 ; When the standard cooking time is constant and the first temperature T1 of the air fryer 1 is constant, β低温 , β 常温 and β 高温 are the heating duty cycle thresholds required to heat the food to the same effect at low temperature, room temperature, and high temperature. 常温 This is the standard heating duty cycle.

[0121] Based on the above definition, in this embodiment, the standard heating duty cycle β1 is subtracted from the in, It is the food thermal coefficient actually calculated by the control component 100 according to the measured first temperature T1 and second temperature T2.

[0122] (3) The initial temperature state of the ingredients is low temperature, and the standard cooking time is increased to obtain adjusted cooking parameters.

[0123] In this embodiment, the standard cooking temperature is kept unchanged, and the cooking parameters are adjusted by increasing the standard cooking time. Specifically, the standard cooking time can be increased in the following two ways:

[0124] ① Increase the standard cooking time by difference.

[0125] In this embodiment, the cooking parameters can be adjusted by adding a fixed time length e to the standard cooking time. The fixed time length e can be determined according to the type of food being cooked. Wherein, whether the cooking process includes a single step or multiple steps, the standard cooking time refers to the cooking time of a single step.

[0126] ② Increase the standard cooking time by proportion.

[0127] In this embodiment, the standard cooking time t3 is added in, The definitions of t2 and t3 are detailed in the above embodiments and will not be repeated here. Regardless of whether the cooking process includes a single step or multiple steps, the above time thresholds refer to the time thresholds of a single step.

[0128] (4) The initial temperature state of the food is low temperature, and the standard cooking temperature is increased to obtain the adjusted cooking parameters.

[0129] In this embodiment, the standard cooking time is kept unchanged, and the cooking parameters are adjusted by increasing the standard cooking temperature. The cooking temperature is mainly determined by the heating duty cycle of the heating element 11. Therefore, in this embodiment, the standard cooking temperature can be increased by increasing the standard heating duty cycle β1 of the heating element 11 corresponding to the standard cooking temperature. Specifically, the heating duty cycle β1 of the heating element 11 corresponding to the standard cooking temperature can be increased in the following two ways:

[0130] ① Increase the standard heating duty cycle β1 by differential method.

[0131] The cooking parameters can be adjusted by adding the fixed duty cycle f to the heating duty cycle β1, wherein the fixed duty cycle f can be determined according to the type of food being cooked.

[0132] ② Increase the standard heating duty cycle β1 in a proportional manner.

[0133] In this embodiment, the standard heating duty cycle β1 is added in, β 低温 and β 常温 The definition of is detailed in the above embodiment and will not be repeated here.

[0134] After obtaining the adjusted cooking parameters, the control component 100 may continue to execute the following step S630.

[0135] Step S630: Control the heating element 11 to operate, and cook the food in the cooking cavity according to the adjusted cooking parameters.

[0136] In this step, after obtaining the adjusted cooking parameters, the control component 100 can control the heating element 11 to operate, and at the same time control the air fryer 1 to cook the ingredients in the cooking cavity according to the adjusted cooking parameters until the cooking is completed.

[0137] It can be seen from the above content that in this application, by performing corresponding operations on the cooking parameters, the air fryer 1 outputs the energy required for cooking the food in the corresponding initial temperature state. Specifically, when it is identified that the initial temperature state of the food is in a low temperature state, the air fryer 1 is enabled to output more energy by adjusting the cooking parameters; when it is identified that the initial temperature state of the food is in a high temperature state, the air fryer 1 is enabled to output less energy by adjusting the cooking parameters; when it is identified that the initial temperature state of the food is in a normal temperature state, the cooking parameters are not adjusted, so that the air fryer 1 can output a more moderate energy. Further, by making the air fryer 1 output the energy required for cooking the food in the corresponding initial temperature state, the cooking effect of the food in different initial temperature states is ensured, and the user experience is improved. Further, it can be seen from the above content that in this implementation, the cooking parameters can be adjusted in a variety of ways such as difference and proportion, and the adjustment methods are diverse.

[0138] In one embodiment, the control component 100 further performs the following step S710:

[0139] Step S710: after receiving the cooking instruction, displaying the standard cooking parameters for the ingredients through the display component; and / or, after obtaining the adjusted cooking parameters, displaying the adjusted cooking parameters through the display component.

[0140] In this embodiment, the cooking parameters are displayed through the display component, so that the user can observe the relevant values ​​of the cooking parameters through the display component.

[0141] In one embodiment, after identifying the initial temperature state of the food in the cooking cavity, the control component 100 further performs the following step S810:

[0142] Step S810: outputting prompt information; wherein the prompt information is used to indicate the initial temperature state of the food in the cooking cavity.

[0143] In this embodiment, when the air fryer 1 is a mechanical air fryer 1, the instruction manual of the air fryer 1 can specify the cooking parameters required for cooking ingredients in various initial temperature states, and the user can cook the ingredients in the corresponding temperature states according to the above instructions. However, the user may make an operational error, causing the output cooking parameters to not match the temperature state of the ingredients, which results in the inability to achieve a good cooking effect for the ingredients, resulting in undercooking or overcooking. To this end, in this embodiment, before starting cooking, the initial temperature state in the cooking cavity is identified, and after identification, the identification result of the initial temperature state of the ingredients is output in the form of prompt information, so that the user can correct the input cooking parameters according to the initial temperature state of the ingredients indicated by the prompt information, thereby effectively ensuring the cooking effect of the air fryer 1 for ingredients in different initial temperature states.

[0144] In one embodiment, after identifying the initial temperature state of the food in the cooking cavity, the control component 100 further performs the following step S910:

[0145] Step S910: increasing the operating speed of the fan 12.

[0146] In this embodiment, the air fryer 1 starts cooking the food after recognizing the initial temperature of the food in the cooking cavity. Therefore, in this embodiment, before the air fryer 1 performs the cooking operation, the fan 12 is operated at a lower speed to achieve the effect of saving energy consumption.

[0147] In several embodiments provided in the present application, the disclosed devices and methods may also be implemented in other ways. The device embodiments described above are merely schematic, for example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to the multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram may represent a module, a program segment or a part of a code, and a module, a program segment or a part of a code contains one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the box may also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they may sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or the flowchart, and the combination of boxes in the block diagram and / or the flowchart, can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0148] In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0149] If the function is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program codes.

Claims

1. A control method for an air fryer, characterized in that: The air fryer has a shell, a cooking cavity and a hot air component are arranged in the shell, the hot air component delivers hot air into the cooking cavity, the hot air component includes a heating element and a fan, and a temperature measuring component is also arranged in the cooking cavity; The control method of the air fryer comprises: After receiving the cooking instruction, measuring the first temperature T1 of the cooking cavity by the temperature measuring component; Controlling the fan to operate and the heating element to not operate; Measuring a second temperature T2 of the cooking cavity by the temperature measuring component; Determining a temperature change trend of the cooking cavity according to the first temperature T1 and the second temperature T2; Determining the initial temperature state of the food in the cooking cavity according to the temperature change trend of the cooking cavity; According to the initial temperature state of the food in the cooking cavity, corresponding operations are performed.

2. The control method of the air fryer according to claim 1, characterized in that: The performing corresponding operations according to the initial temperature state of the food in the cooking cavity includes: If the initial temperature state of the food in the cooking cavity is a standard temperature state, controlling the heating element to operate and cooking the food in the cooking cavity according to preset standard cooking parameters; If the initial temperature state of the food in the cooking cavity is a non-standard temperature state, adjusting the standard cooking parameters to obtain adjusted cooking parameters; The heating element is controlled to operate, and the food in the cooking cavity is cooked according to the adjusted cooking parameters.

3. The control method of the air fryer according to claim 1, characterized in that: After controlling the fan to run, the control method of the air fryer further includes: Determine whether the running time of the fan reaches a preset time; If the running time of the fan reaches the preset time, the second temperature T2 of the cooking cavity is measured by the temperature measuring component.

4. The control method of the air fryer according to claim 1, characterized in that: The step of determining the temperature change trend of the cooking cavity according to the first temperature T1 and the second temperature T2 includes: The temperature parameter is calculated according to the first temperature T1 and the second temperature T2; wherein the temperature parameter is T1-T2, or the temperature parameter is b is the interval between measuring the first temperature T1 and the second temperature T2; The temperature parameter is compared with a preset threshold value, and the temperature change trend in the cooking cavity is determined according to the comparison result.

5. The control method of the air fryer according to claim 4, characterized in that: Before comparing the temperature parameter with a preset threshold, the control method of the air fryer further includes: The preset threshold is determined according to the temperature interval in which the first temperature T1 is located; wherein each temperature interval corresponds to a preset threshold.

6. The control method of the air fryer according to claim 2, characterized in that: The standard cooking parameters include standard cooking time and standard cooking temperature; the non-standard temperature state includes high temperature state and low temperature state; The adjusting of the standard cooking parameters comprises: If the initial temperature state of the food in the cooking cavity is a high temperature state, reducing the standard cooking time, or reducing the standard cooking temperature to obtain the adjusted cooking parameters; If the initial temperature state of the food in the cooking cavity is a low temperature state, the standard cooking time is increased, or the standard cooking temperature is increased to obtain the adjusted cooking parameters.

7. The control method of the air fryer according to claim 2, characterized in that: The air fryer further includes a display component; and the control method of the air fryer further includes: After receiving the cooking instruction, displaying the standard cooking parameters through the display component; and / or; After obtaining the adjusted cooking parameters, the adjusted cooking parameters are displayed through the display component.

8. The control method of the air fryer according to claim 1, characterized in that: Determining the initial temperature state of the food in the cooking cavity according to the temperature change trend of the cooking cavity includes: If the temperature change trend of the cooking cavity shows an upward trend or a downward trend, the initial temperature state of the food in the cooking cavity is a non-standard temperature state; If the temperature change trend of the cooking cavity does not show an upward trend or a downward trend, the initial temperature state of the food in the cooking cavity is a standard temperature state.

9. The control method of the air fryer according to claim 1, characterized in that: The performing corresponding operations according to the initial temperature state of the food in the cooking cavity includes: Output prompt information; wherein the prompt information is used to indicate the initial temperature state of the food in the cooking cavity.

10. The control method of the air fryer according to claim 1, characterized in that: After determining the initial temperature state of the food in the cooking cavity, the method further includes: Increase the operating speed of the fan.

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