Control Method, System and Device for Air Fryer

Abstract

A control method, system and device for an air fryer. The control method for the air fryer includes the steps of: controlling an air circulation device of the air fryer to drive air to flow in an air fryer cavity of the air fryer; controlling an air heating device of the air fryer to heat the air flowing in the air fryer cavity; and correspondingly regulating the air frying time of the air fryer according to the measured value of the weight of the item to be fried accommodated in the air fryer cavity, which helps to improve the air frying effect of the air fryer.

Description

Technical Field

[0001] The present invention relates to the technical field of air frying, and more particularly to a control method, system and device for an air fryer. Background Art

[0002] An air fryer, as a machine capable of "frying" using hot air, mainly uses hot air to replace the hot oil in the original frying pan to heat items (such as foods like French fries, vegetables, meat or fish, etc.), and removes the moisture on the surface of the items through hot air to achieve the frying effect. Since the air fryer can not only greatly eliminate the grease in the items, but also maintain many required qualities of the fried items (such as the appearance and taste of fried foods, etc.), the air fryer has received more and more attention and love from users and has great commercial value.

[0003] Currently, there are usually two operation modes for air fryers on the existing market when baking food ingredients: The first operation mode is to directly select a pre-set recipe according to the type of food ingredients to be baked. Although this foolproof operation mode can greatly simplify the user operation and is convenient for users to use, it is impossible to pre-set all the recipes for food ingredients. Generally, only several specific recipes can be selected for setting; The second operation mode is that the user manually sets the heating time and temperature according to the taste requirements and experience. Although this mode can get rid of the limitation of the limited set recipes, it highly depends on the user's experience, which is disastrous for most novice cooks. Even for experienced chefs who newly use an air fryer, they also need to go through multiple baking attempts to obtain a satisfactory air fry effect.

[0004] However, air fryers on the existing market usually ignore the influence of the weight of food ingredients on the air fry effect, that is, once the recipe is selected or the heating time and temperature are set, no matter how much food ingredients are put in, the existing air fryer will perform air frying according to the pre-set temperature, wind speed and time. In fact, the same type of food ingredients with different weights have different requirements for the air fry time, because the same type of food ingredients with different weights have different total amounts of grease and moisture, and thus different air fry times are required to obtain the required degreasing and dehydration effects in order to obtain a relatively consistent air fry effect.

[0005] In addition, even for the same type of food ingredients with the same weight, due to different freshness degrees, their fat content and water content are also different. At this time, if cooking is still carried out according to the pre-set time and wind speed, it is difficult to obtain consistent degreasing and dehydration effects, resulting in different air fry effects for the food ingredients cooked each time and making it difficult to meet the user's requirements for the consistency of cooking effects and taste. Summary of the Invention

[0006] One advantage of the present invention is to provide a control method, system and device for an air fryer, which can regulate the air frying time of the air fryer and help improve the air frying effect of the air fryer.

[0007] Another advantage of the present invention is to provide a control method, system and device for an air fryer. In one embodiment of the present invention, the control method for the air fryer can correspondingly regulate the air frying time of the air fryer according to the weight of the item to be fried, so as to reasonably control the dehydration effect and degreasing effect of the item to be fried, thereby improving the consistency of the air frying effect.

[0008] Another advantage of the present invention is to provide a control method, system and device for an air fryer. In one embodiment of the present invention, the control method for the air fryer can selectively regulate the maximum flow rate of the air according to the weight of the item to be fried, so as to control the dehydration rate and degreasing rate of the item to be fried.

[0009] Another advantage of the present invention is to provide a control method, system and device for an air fryer. In one embodiment of the present invention, the control method for the air fryer can automatically control the shutdown moment of the air fryer according to the weight loss ratio of the item to be fried during the air frying process, so as to obtain a relatively consistent air frying effect while meeting the user's taste requirements.

[0010] Another advantage of the present invention is to provide a control method, system and device for an air fryer. In one embodiment of the present invention, the control method for the air fryer can automatically regulate the shutdown moment of the air fryer according to the weight loss speed of the item to be fried during the air frying process, so as to obtain a better air frying effect.

[0011] Another advantage of the present invention is to provide a control method, system and device for an air fryer. In one embodiment of the present invention, the control method for the air fryer can automatically weigh the item to be fried to automatically set the air frying time of the air fryer, which is convenient for simplifying the user's operation and reducing the chance of misoperation.

[0012] Another advantage of the present invention is to provide a control method, system and device for an air fryer. In one embodiment of the present invention, the control method for the air fryer can prevent the air fryer from being damaged due to dry burning, which affects its service life, and at the same time can also avoid wasting electric energy.

[0013] Another advantage of the present invention lies in providing a control method, system and device for an air fryer. In order to achieve the above advantages, in the present invention, complex structures or algorithms are not required. Therefore, the present invention successfully and effectively provides a solution that not only provides a simple control method, system and device for an air fryer, but also increases the practicability and reliability of the control method, system and device for the air fryer.

[0014] To achieve at least one of the above advantages or other advantages and purposes, the present invention provides a control method for an air fryer, including the steps of:

[0015] Controlling an air circulation device of the air fryer to drive air to flow in an air fry cavity of the air fryer;

[0016] Controlling an air heating device of the air fryer to heat the air flowing in the air fry cavity; and

[0017] Correspondingly regulating the air frying time of the air fryer according to the measured value of the weight of the item to be fried accommodated in the air fry cavity.

[0018] According to an embodiment of the present application, the step of correspondingly regulating the air frying time of the air fryer according to the measured value of the weight of the item to be fried accommodated in the air fry cavity includes the steps of:

[0019] Measuring the initial weight of the item to be fried; and

[0020] Correspondingly adjusting the air frying time of the air fryer according to the magnitude of the initial weight of the item to be fried.

[0021] According to an embodiment of the present application, the step of correspondingly adjusting the air frying time of the air fryer according to the magnitude of the initial weight of the item to be fried includes the steps of:

[0022] In response to the initial weight of the item to be fried being greater than or equal to the lower limit of the reference weight threshold and less than or equal to the upper limit of the reference weight threshold, adjusting the air frying time of the air fryer to be equal to the reference air frying time;

[0023] In response to the initial weight of the item to be fried being greater than the upper limit of the reference weight threshold, extending and adjusting the air frying time of the air fryer to be greater than the reference air frying time; and

[0024] In response to the initial weight of the item to be fried being less than the lower limit of the reference weight threshold, shortening and adjusting the air frying time of the air fryer to be less than the reference air frying time.

[0025] According to an embodiment of the present application, the step of adjusting the air frying time of the air fryer in positive correlation with the magnitude of the initial weight of the item to be fried includes the steps of:

[0026] In response to the initial weight of the item to be fried being less than the minimum weight threshold, adjusting the air frying time of the air fryer to be equal to zero.

[0027] According to an embodiment of the present application, the step of correspondingly controlling the air frying time of the air fryer according to the weight measurement value of the item to be fried accommodated in the air frying cavity includes the steps of:

[0028] Measuring in real time the weight of the item to be fried accommodated in the air frying cavity to calculate the weight loss ratio of the item to be fried during the air frying process; and

[0029] In response to the weight loss ratio of the item to be fried being within the predetermined ratio range, automatically controlling the air fryer to stop the air frying process.

[0030] According to an embodiment of the present application, the predetermined ratio range is determined by the material of the item to be fried and the desired air frying effect.

[0031] According to an embodiment of the present application, the control method for the air fryer further includes the steps of:

[0032] According to the weight measurement value of the item to be fried, selectively adjusting the working threshold of the driving power of the air circulation device so that the maximum flow velocity of the air in the air frying cavity is in positive correlation with the initial weight of the item to be fried.

[0033] According to an embodiment of the present application, the step of selectively adjusting the working threshold of the driving power of the air circulation device according to the weight measurement value of the item to be fried so that the maximum flow velocity of the air in the air frying cavity is in positive correlation with the initial weight of the item to be fried includes the steps of:

[0034] Measuring the weight of the item to be fried before the air frying process to obtain the initial weight of the item to be fried;

[0035] Calling a preset threshold instruction corresponding to the initial weight of the item to be fried from the instruction list; and

[0036] In response to the preset threshold instruction, adjusting the working threshold of the driving power of the air circulation device to be equal to a preset threshold so that the real-time velocity of the air flowing in the air frying cavity is not greater than the maximum flow velocity.

[0037] According to an embodiment of the present application, by modulating the parameters of a stepless control signal within a parameter modulation range, the working threshold of the driving power of the air circulation device is regulated.

[0038] According to an embodiment of the present application, the control method for the air fryer further includes the steps of:

[0039] According to the working stage of the air fryer, controlling the flow rate of the air in the air fryer cavity by a stepless speed control method, where the stepless speed control method includes the steps of:

[0040] Modulating the parameters of a stepless control signal according to the working stage of the air fryer; and

[0041] In response to the modulated stepless control signal, steplessly adjusting the driving power of the air circulation device to control the flow rate of the air in the air fryer cavity.

[0042] According to an embodiment of the present application, the step of correspondingly regulating the air frying time of the air fryer according to the measured weight value of the item to be fried accommodated in the air fryer cavity includes the steps of:

[0043] Measuring in real time the weight of the item to be fried accommodated in the air fryer cavity to obtain the real-time weight of the item to be fried during the air frying process of the air fryer;

[0044] Performing curve fitting processing on the real-time weight of the item to be fried to calculate the real-time weight loss rate of the item to be fried; and

[0045] In response to the real-time weight loss rate of the item to be fried being less than a predetermined speed threshold, automatically controlling the air fryer to stop the air frying process.

[0046] According to another aspect of the present application, the present application further provides a control system for an air fryer, where the air fryer includes an air fryer cavity, an air circulation device for driving air to circulate and flow in the air fryer cavity, and an air heating device for heating the air that circulates and flows in the air fryer cavity, where the control system for the air fryer includes components that are communicatively connected to each other:

[0047] A drive control module for controlling the air circulation device to drive the air to flow in the air fryer cavity;

[0048] A heating control module for controlling the air heating device to heat the air that flows in the air fryer cavity; and

[0049] A time control module for correspondingly controlling the air frying time of the air fryer according to the measured weight of the item to be fried accommodated in the air frying cavity.

[0050] According to an embodiment of the present application, the time control module includes a weight measurement module and a time adjustment module communicatively connected to each other, wherein the weight measurement module is used to measure the initial weight of the item to be fried; and the time adjustment module is used to adjust the air frying time of the air fryer in a positive correlation according to the magnitude of the initial weight of the item to be fried.

[0051] According to an embodiment of the present application, the time adjustment module is further configured to: in response to the initial weight of the item to be fried being greater than or equal to the lower limit of the reference weight threshold and less than or equal to the upper limit of the reference weight threshold, adjust the air frying time of the air fryer to be equal to the reference air frying time; in response to the initial weight of the item to be fried being greater than the upper limit of the reference weight threshold, extend the adjustment of the air frying time of the air fryer to be greater than the reference air frying time; and in response to the initial weight of the item to be fried being less than the lower limit of the reference weight threshold, shorten the adjustment of the air frying time of the air fryer to be less than the reference air frying time.

[0052] According to an embodiment of the present application, the time adjustment module is further configured to, in response to the initial weight of the item to be fried being less than the minimum weight threshold, adjust the air frying time of the air fryer to be equal to zero.

[0053] According to an embodiment of the present application, the time control module includes a weight measurement module and a shutdown module communicatively connected to each other, wherein the weight measurement module is used to measure in real time the weight of the item to be fried accommodated in the air frying cavity to calculate the weight loss ratio of the item to be fried during the air frying process; and the shutdown module is used to automatically control the air fryer to stop the air frying process in response to the weight loss ratio of the item to be fried being within the predetermined ratio range.

[0054] According to an embodiment of the present application, the control system for the air fryer further includes a flow rate control module, wherein the flow rate control module is used to selectively control the working threshold of the driving power of the air circulation device according to the measured weight value of the item to be fried, so that the maximum flow rate of the air in the air frying cavity is positively correlated with the initial weight of the item to be fried.

[0055] According to an embodiment of the present application, the flow rate regulation module includes a weight measurement module, an instruction invocation module, and a threshold regulation module that are communicatively connected to each other. The weight measurement module is configured to measure the weight of the item to be fried before the air frying process to obtain the initial weight of the item to be fried. The instruction invocation module is configured to invoke a preset threshold instruction corresponding to the initial weight of the item to be fried from a list of instructions. The threshold regulation module is configured to, in response to the preset threshold instruction, regulate the working threshold of the driving power of the air circulation device to be equal to a preset threshold, such that the real-time speed of the air flowing in the air frying cavity is not greater than the maximum flow speed.

[0056] According to an embodiment of the present application, the time regulation module includes a weight measurement module, a speed calculation module, and a shutdown module that are communicatively connected to each other. The weight measurement module is configured to measure the weight of the item to be fried accommodated in the air frying cavity in real time to obtain the real-time weight of the item to be fried during the air frying process of the air fryer. The speed calculation module is configured to calculate the real-time weight loss speed of the item to be fried by performing curve fitting processing on the real-time weight of the item to be fried. The shutdown module is configured to, in response to the real-time weight loss speed of the item to be fried being less than a predetermined speed threshold, automatically control the air fryer to stop the air frying process.

[0057] On the other hand, the present application further provides an electronic device, including:

[0058] a processor for executing program instructions; and

[0059] a memory, where the memory is configured to store program instructions executable by the processor to implement a control method for an air fryer. The control method for the air fryer includes the steps of:

[0060] controlling an air circulation device of the air fryer to drive air to flow in an air frying cavity of the air fryer;

[0061] controlling an air heating device of the air fryer to heat the air flowing in the air frying cavity; and

[0062] correspondingly regulating the air frying time of the air fryer according to a weight measurement value of an item to be fried accommodated in the air frying cavity.

[0063] Through the understanding of the following description and the drawings, further objects and advantages of the present invention will be fully embodied.

[0064] These and other objects, features, and advantages of the present invention will be fully embodied through the following detailed description, drawings, and claims. Brief Description of the Drawings

[0065] Figure 1 It is a schematic flowchart of a control method for an air fryer according to an embodiment of the present invention.

[0066] Figure 2 It shows a schematic flowchart of the time regulation step in the control method for the air fryer according to the above embodiment of the present invention

[0067] Figure 3 It shows an example of the time regulation step in the control method for the air fryer according to the above embodiment of the present invention.

[0068] Figure 4 It shows another example of the time regulation step in the control method for the air fryer according to the above embodiment of the present invention.

[0069] Figure 5A It shows a data schematic diagram of the water and oil loss ratios when ingredients of different weights reach the same taste requirement.

[0070] Figure 5B It shows a data schematic diagram of the water and oil loss ratios when ingredients of the same weight reach different taste requirements.

[0071] Figure 6 It shows yet another example of the time regulation step in the control method for the air fryer according to the above embodiment of the present invention.

[0072] Figure 7 It shows a schematic flowchart of the power regulation step in the control method for the air fryer according to the above embodiment of the present invention.

[0073] Figure 8 It shows a schematic flowchart of the stepless speed control method according to the above embodiment of the present invention.

[0074] Figure 9 It shows a schematic diagram of the working principle of the air fryer in the stepless speed control method according to the above embodiment of the present invention.

[0075] Figure 10 It is a schematic block diagram of a control system for an air fryer according to an embodiment of the present invention.

[0076] Figure 11A It shows an example of the time regulation module in the control system for the air fryer according to the above embodiment of the present application.

[0077] Figure 11BShows another example of the time control module in the control system for an air fryer according to the above embodiments of the present application.

[0078] Figure 11C Shows yet another example of the time control module in the control system for an air fryer according to the above embodiments of the present application.

[0079] Figure 12 Shows a block diagram schematic of an electronic device according to an embodiment of the present invention.

[0080] Figure 13 Is a block diagram schematic of an air fryer device according to an embodiment of the present invention.

[0081] Figure 14 Shows a three-dimensional schematic diagram of the air fryer device according to the above embodiments of the present invention.

[0082] Figure 15 Shows a cross-sectional schematic diagram of the air fryer device according to the above embodiments of the present invention.

[0083] Figure 16 Shows an exploded schematic diagram of the air fryer device according to the above embodiments of the present invention.

[0084] Figure 17 Shows a first variant embodiment of the air fryer device according to the above embodiments of the present invention.

[0085] Figure 18 Shows a second variant embodiment of the air fryer device according to the above embodiments of the present invention.

[0086] Figure 19 Is a block diagram schematic of an air fryer device according to another embodiment of the present invention. Detailed implementation

[0087] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variants. The basic principles defined in the following description can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes that do not depart from the spirit and scope of the present invention.

[0088] In the present invention, the term "a" in the claims and the specification should be understood as "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. Unless it is clearly indicated in the disclosure of the present invention that the number of the element is only one, the term "a" cannot be understood as being unique or single, and the term "a" cannot be understood as a limitation on the number.

[0089] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0090] Air fryers on the existing market usually ignore the influence of the weight of food ingredients on the air frying effect. That is, once the recipe is selected or the heating time and temperature are set, regardless of the amount of food ingredients put in, the existing air fryers will perform air frying according to the preset temperature, wind speed, and time. In fact, the same type of food ingredients with different weights have different requirements for air frying time. This is because for the same type of food ingredients with different weights, the total amount of oil and the total amount of water contained in them are also different. Therefore, different air frying times are required to obtain the desired degreasing and dehydration effects in order to achieve a relatively high consistency of air frying effect. In addition, even for the same type of food ingredients with the same weight, due to different freshness levels, the fat content and water content are also different. At this time, if cooking is still carried out according to the preset time and wind speed, it is difficult to obtain a consistent degreasing and dehydration effect, resulting in different air frying effects for the food ingredients cooked each time, and it is difficult to meet the user's demand for the consistency of cooking effect and taste.

[0091] Therefore, in order to obtain a relatively good consistency of air frying effect, the present invention provides a control method, system, and device for an air fryer, which can select the air frying time of the air fryer according to the weight of the item to be fried, so as to reasonably control the dehydration effect and degreasing effect of the item to be fried, thereby improving the consistency of the air frying effect of the item to be fried. It can be understood that the item to be fried mentioned in the present invention can be foods such as French fries, vegetables, meat, or fish, etc., or non-edible industrial products, etc. The present invention does not limit this.

[0092] Schematic method

[0093] Referring to the accompanying drawings of the specification Figures 1 to 9 As shown, a control method for an air fryer according to an embodiment of the present invention is illustrated. The air fryer 1 generally may include an air fry cavity 10 for accommodating items to be fried, an air circulation device 20 for driving air to circulate within the air fry cavity 10, and an air heating device 30 for heating the air flowing within the air fry cavity 10. Thus, after placing the item to be fried within the air fry cavity 10, the air heated by the air heating device 30 will contact the item to be fried under the drive of the air circulation device 20 to perform an air frying process on the item to be fried.

[0094] It can be understood that although the present invention is illustrated by taking the air fryer 1 as shown Figures 1 to 9 as an example to illustrate the advantages and features of the control method for the air fryer of the present invention, the specific structure of the air fryer 1 is only for illustration and does not constitute a limitation on the control method for the air fryer of the present invention. For example, in other examples of the present invention, the specific structure of the air fryer 1 may also be implemented as other types of structures as long as the desired air frying effect can be achieved.

[0095] Specifically, according to the above embodiment of the present application, as Figure 1 shown, the control method for the air fryer may include the steps of:

[0096] S100: Controlling an air circulation device 20 of an air fryer 1 to drive air to flow within an air fry cavity 10 of the air fryer 1;

[0097] S200: Controlling an air heating device 30 of the air fryer 1 to heat the air flowing within the air fry cavity 10; and

[0098] S300: Correspondingly regulating the air frying time of the air fryer 1 according to the measured weight value of the item to be fried accommodated within the air fry cavity 10.

[0099] It should be noted that since the length of the air frying time of the air fryer 1 directly determines the total amount of water dehydration and / or fat removal of the item to be fried during the air frying process, and the initial weight of the item to be fried is positively correlated with the total amount of water content and / or fat content of the item to be fried, the control method for the air fryer of the present application can correspondingly regulate the air frying time of the air fryer 1 according to the initial weight of the item to be fried, facilitating the air fryer to maintain a good consistency in the air frying effect on the item to be fried.

[0100] More specifically, asFigure 2 As shown, step S300 of the control method for the air fryer may include the steps of:

[0101] S310: Measuring the initial weight of the item to be fried; and

[0102] S320: Adjusting the air frying time of the air fryer 1 in a positive correlation according to the magnitude of the initial weight of the item to be fried.

[0103] Preferably, in an example of the present application, as Figure 3 shown, step S320 of the control method for the air fryer may include the steps of:

[0104] S321: In response to the initial weight of the item to be fried being greater than or equal to the lower limit of the reference weight threshold and less than or equal to the upper limit of the reference weight threshold, regulating the air frying time of the air fryer to be equal to the reference air frying time;

[0105] S322: In response to the initial weight of the item to be fried being greater than the upper limit of the reference weight threshold, regulating the air frying time of the air fryer to be longer than the reference air frying time in an extended manner; and

[0106] S323: In response to the initial weight of the item to be fried being less than the lower limit of the reference weight threshold, regulating the air frying time of the air fryer to be shorter than the reference air frying time in a shortened manner.

[0107] It can be understood that the upper limit of the reference weight threshold, the lower limit of the reference weight threshold, and the reference air frying time of the present application can all be obtained through experiments. When the initial weight of the item to be fried is greater than or equal to the lower limit of the reference weight threshold and less than or equal to the upper limit of the reference weight threshold, when the air frying time of the item to be fried by the air fryer 1 reaches the reference air frying time, the total dehydration amount and the total degreasing amount of the item to be fried are appropriate, meeting the user's requirements for the air frying effect. Thus, when the initial weight of the item to be fried is larger and greater than the upper limit of the reference weight threshold, the control method for the air fryer of the present application correspondingly regulates to extend the air frying time of the air fryer 1, so that the total dehydration amount and / or the total degreasing amount of the item to be fried increases; and when the initial weight of the item to be fried is smaller and less than the lower limit of the reference weight threshold, the control method for the air fryer of the present application correspondingly regulates to shorten the air frying time of the air fryer 1, so that the total dehydration amount and / or the total degreasing amount of the item to be fried decreases, thereby keeping a good consistency in the air frying effect of the air fryer on the item to be fried.

[0108] It should be noted that when the item to be fried is not placed in the air fryer 1 or the initial weight of the item to be fried is too small, if the air fryer 1 continues the air frying process, the air fryer 1 will dry burn, which will affect its service life and also waste electric energy. Therefore, to solve this problem, more preferably, as Figure 3 shown, step S320 of the control method for the air fryer of the present application further includes the steps of:

[0109] S324: In response to the initial weight of the item to be fried being less than the minimum weight threshold, adjust the air frying time of the air fryer to be equal to zero.

[0110] It can be understood that the minimum weight threshold of the present application can be obtained based on experience. For example, the minimum weight threshold can be but is not limited to being implemented as 10 g, etc.

[0111] It is worth mentioning that for the same kind of food material, the taste of the food material is usually related to the loss ratio of the moisture and oil of the food material. That is to say, for the item to be fried of the same material, the air frying effect of the item to be fried is usually related to the weight change ratio of the item to be fried and has nothing to do with the initial weight of the item to be fried. Therefore, in order to obtain a relatively consistent air frying effect, the present application can measure the weight of the item to be fried in real time to calculate the weight loss ratio of the item to be fried during the air frying process, so as to facilitate controlling the weight loss ratio of the item to be fried to be maintained within a certain predetermined ratio range, so that the air frying effect of the air fryer on the item to be fried maintains better consistency.

[0112] Exemplarily, in another example of the present application, as Figure 4 shown, step S300 of the control method for the air fryer may include the steps of:

[0113] S330: Measure the weight of the item to be fried accommodated in the air frying cavity 10 in real time to calculate the weight loss ratio of the item to be fried during the air frying process; and

[0114] S340: In response to the weight loss ratio of the item to be fried being within the predetermined ratio range, automatically control the air fryer to stop the air frying process.

[0115] Preferably, the predetermined ratio range is determined by the material of the item to be fried and the required air frying effect (such as taste requirements).

[0116] It can be understood that the predetermined ratio range can be obtained through experiments or based on experience. Exemplarily, as Figure 5AAs shown, for steaks (the items to be fried) of different weights, when the loss ratio of moisture and grease (i.e., the weight loss ratio of the items to be fried) reaches 35%, the steaks will achieve the air-fried effect of medium-rare. At this time, the predetermined ratio range can be implemented as 35% ± 0.01; for French fries (the items to be fried) of different weights, when the loss ratio of moisture and grease (i.e., the weight loss ratio of the items to be fried) reaches 45%, the French fries achieve the air-fried effect of crispy on the outside and soft on the inside. At this time, the predetermined ratio range can be implemented as 45% ± 0.01.

[0117] As Figure 5B shown, for steaks of the same weight, when the loss ratio of moisture and grease (i.e., the weight loss ratio of the items to be fried) reaches 5%, 15%, 25%, 35%, 45%, and 55% in sequence, the steaks will achieve the air-fried effects of rare, medium, medium-rare, medium-well, and well-done in sequence. At this time, the predetermined ratio range can be implemented as 5% ± 0.01, 15% ± 0.01, 25% ± 0.01, 35% ± 0.01, 45% ± 0.01, and 55% ± 0.01 in sequence. For French fries of the same weight, when the loss ratio of moisture and grease reaches 30% and 45% in sequence, the French fries will correspondingly achieve the air-fried effects of soft on the outside and inside and crispy on the outside and soft on the inside. At this time, the predetermined ratio range can be implemented as 30% ± 0.01 and 45% ± 0.01 in sequence.

[0118] It is worth mentioning that as the loss of surface moisture and grease of the items to be fried increases, the weight loss speed of the items to be fried will gradually decrease until it becomes zero. Therefore, in order to ensure that the air-fried effects of the items to be fried with different initial weights are as consistent as possible, in another example of this application, as Figure 6 shown, step S300 of the control method for the air fryer may include the steps:

[0119] S350: Measure the weight of the item to be fried accommodated in the air fryer cavity 10 in real time to obtain the real-time weight of the item to be fried during the air frying process in this air fryer;

[0120] S360: Perform curve fitting processing on the real-time weight of the item to be fried to calculate the real-time weight loss speed of the item to be fried; and

[0121] S370: In response to the real-time weight loss speed of the item to be fried being less than the predetermined speed threshold, automatically control the air fryer to stop the air frying process.

[0122] It can be understood that the predetermined speed threshold can be obtained through big data or a large number of experiments, or can be obtained based on experience. For example, the predetermined speed threshold can be, but is not limited to, implemented as 5 g / min.

[0123] It should be noted that when the initial weight of the item to be fried is larger, the total water content or total fat content of the item to be fried is higher. At this time, it is necessary to increase the flow rate of the air to accelerate the speed at which the air takes away water and oil, and increase the dehydration efficiency or defatting efficiency of the air fryer 1 for the item to be fried; when the initial weight of the item to be fried is smaller, the total water content or total fat content of the item to be fried is lower. At this time, it is necessary to decrease the flow rate of the air to reduce the speed at which the air takes away water and oil, and reduce the dehydration efficiency or defatting efficiency of the air fryer 1 for the item to be fried, so as to obtain a more consistent air frying effect.

[0124] In addition, the driving power of the air circulation device 20 is positively correlated with the flow rate of the air driven by the air circulation device 20. That is to say, the greater the driving power of the air circulation device 20, the greater the flow rate of the air driven by the air circulation device 20, and the greater the flow rate of the air in the air fry cavity 10; vice versa.

[0125] According to the above embodiments of the present application, as Figure 1 shown, the control method for the air fryer may further include the steps:

[0126] S400: According to the measured value of the weight of the item to be fried, selectively adjust the working threshold of the driving power of the air circulation device 20, so that the maximum flow rate of the air in the air fry cavity 10 is positively correlated with the initial weight of the item to be fried.

[0127] It can be understood that the maximum flow rate mentioned in the present application is not the flow rate of the air driven by the air circulation device 20 of the air fryer 1 when it is in a full-power working state in the air fry cavity 10, but the maximum value of the air flow rate adjusted by the control method for the air fryer of the present application according to the initial weight of the item to be fried. That is to say, for items to be fried with different weights, the maximum flow rate is different.

[0128] For example, for ingredients with a relatively small initial weight, that is, the total water content or the total fat content is also small, the control method for the air fryer of the present application can adjust the working threshold of the driving power of the air circulation device 20 to reduce the maximum flow velocity of the air in the air fryer cavity 10, preventing excessive dehydration or defatting of the ingredients caused by an excessive air flow velocity. For ingredients with a relatively large initial weight, that is, the total water content or the total fat content is also large, the control method for the air fryer of the present application can increase the working threshold of the driving power of the air circulation device 20 to increase the maximum flow velocity of the air in the air fryer cavity 10, preventing insufficient dehydration or defatting of the ingredients caused by an excessively small air flow velocity, which affects the taste.

[0129] It should be noted that, in an example of the present application, the control method for the air fryer of the present application can artificially set the working threshold of the driving power of the air circulation device 20 according to the measured weight value of the item to be fried, such as through an interactive interface or a button. That is to say, the control method for the air fryer of the present application can artificially regulate the maximum flow velocity of the air in the air fryer cavity 10 according to the measured weight value of the item to be fried.

[0130] Of course, in other examples of the present application, the control method for the air fryer of the present application can also intelligently select the working threshold of the driving power of the air circulation device 20 according to the measured weight value of the item to be fried through pre-stored data. That is to say, the control method for the air fryer of the present application can intelligently regulate the maximum flow velocity of the air in the air fryer cavity 10 according to the measured weight value of the item to be fried.

[0131] More specifically, according to the above embodiments of the present application, as Figure 7 shown, the step S400 of the control method for the air fryer may include the steps:

[0132] S410: Measure the weight of the item to be fried before the air frying process to obtain the initial weight of the item to be fried;

[0133] S420: Call a preset threshold instruction corresponding to the initial weight from the instruction list; and

[0134] S430: In response to the preset threshold instruction, adjust the working threshold of the driving power of the air circulation device 20 to be equal to a preset threshold, so that the real-time velocity of the air flowing in the air fryer cavity is not greater than the maximum flow velocity.

[0135] It is worth mentioning that in step S410 of the control method for the air fryer in the present application, weighing can be performed by, but not limited to, an independent weighing scale, or by the built-in weighing scale of the air fryer 1. This application will not elaborate further on this. It can be understood that the correspondence between the preset threshold and the material in the instruction list of the present application can be obtained through human experience, or through experiments or big data.

[0136] In addition, since the driving power of the air circulation device 20 of the present application can be adjusted by modulating the parameters of a stepless control signal, in step S430 of the control method for the air fryer in the present application: the operating threshold of the driving power of the air circulation device 20 can be regulated by modulating the parameters of a stepless control signal within a parameter modulation range.

[0137] In other words, when it is necessary to reduce the operating threshold of the driving power of the air circulation device 20, only a smaller parameter modulation range needs to be set. At this time, modulating the parameters of the stepless control signal within the parameter modulation range can ensure that the driving power of the air circulation device 20 does not exceed the preset threshold; while when it is necessary to increase the operating threshold of the driving power of the air circulation device 20, only a larger parameter modulation range needs to be set.

[0138] In addition, since the air frying process of the air fryer 1 can generally be divided into different working stages, and when the air fryer 1 is in different working stages, the air circulation device 20 of the air fryer 1 needs to be controlled to adjust the air flow rate in the air fryer cavity 10, which helps to improve the air frying effect of the air fryer 1. Therefore, as Figure 1 shown, step S400 of the control method for the air fryer in the present application can further include the step:

[0139] S440: According to the working stage of the air fryer 1, control the air flow rate in the air fryer cavity 10 through a stepless speed control method.

[0140] Specifically, as Figure 8 shown, according to the above embodiment of the present application, the stepless speed control method can include the steps:

[0141] C1: Modulate the parameters of a stepless control signal according to the working stage of the air fryer 1; and

[0142] C2: In response to the modulated stepless control signal, steplessly adjust the driving power of an air circulation device 20 of the air fryer 1 to control the air flow rate in the air fryer cavity 10.

[0143] Preferably, in step S430 of the control method for the air fryer in the present application: the parameters of the stepless control signal are modulated within the parameter modulation range by the stepless speed control method, so that the real-time driving power of the air circulation device 20 is not greater than the preset threshold. Of course, in other examples of the present application, the stepless speed control method may also modulate the parameters of the stepless control signal within the full range to allow the air circulation device 20 to operate at full power. That is to say, the preset threshold may but is not limited to be implemented as the rated power of the air circulation device 20.

[0144] It should be noted that as Figure 9 shown, the air circulation device 20 of the air fryer 1 may but is not limited to include a power supply circuit 21 for connecting to a power supply E, a fan 22 disposed on the power supply circuit 21, and a speed adjustment device 23 disposed on the power supply circuit 21, wherein the speed adjustment device 23 is used to respond to the stepless control signal and instantaneously switch the real-time motor speed of the fan 23, so as to achieve stepless adjustment of the driving power of the air circulation device 20. It can be understood that the fan 22 may be configured with a DC motor or an AC motor.

[0145] In particular, the stepless speed control method of the present invention can steplessly adjust the driving power of the air circulation device 20 through the stepless control signal, so that the air circulation device 20 can operate at any required driving power between zero power and full power. That is to say, the stepless speed control method of the present invention can make the fan 22 of the air circulation device 20 operate at any rotational speed operation state (corresponding to any required driving power operation state of the air circulation device 20) between the full-speed operation state (corresponding to the full-power operation state of the air circulation device 20) and the stop operation state (corresponding to the zero-power operation state of the air circulation device 20), and then continuously adjust the flow rate of the air in the air fryer cavity 10, rather than only allowing the fan to operate at full speed during the air frying process like existing air fryers, so as to ensure that the stepless speed control method of the present invention can better meet the requirements of the air frying process in terms of the air flow rate and air temperature in the air fryer 1.

[0146] Preferably, the stepless control signal of the present invention can be implemented as a pulse wave, wherein the parameters of the stepless control signal can include, but are not limited to, the duty cycle or frequency of the pulse wave. It can be understood that the pulse wave can be implemented as, but is not limited to, a rectangular wave, a sawtooth wave, a triangular wave, a spike wave, or a step wave, etc. For the convenience of description, the following will take the rectangular wave as an example for elaboration. In addition, the duty cycle of the pulse wave refers to the ratio between the pulse width (i.e., within a pulse period T, the time t0 corresponding to the high level of the pulse wave) and the pulse period T, that is, t0 / T.

[0147] Exemplarily, as Figure 9 shown, the speed adjustment device 23 of the air circulation device 20 can be implemented as a switching device 231, wherein the switching device 231 and the fan 22 are connected in series to the power supply circuit 21, and are used to instantaneously turn on and off the power supply circuit 21 in response to the stepless control signal, so as to switch the real-time motor speed of the fan 23, and further realize stepless adjustment of the driving power of the air circulation device 20.

[0148] Specifically, step C2 of the stepless speed control method can include the steps of:

[0149] In response to the high level of the pulse wave, instantaneously turn on the power supply circuit 21 of the air circulation device 20 through the switching device 231, so that the current working voltage of the fan 22 is equal to the real-time voltage applied to the fan 22 through the power supply circuit 21, so that the fan 22 is in a high-speed operation state; and

[0150] In response to the low level of the pulse wave, instantaneously turn off the power supply circuit 21 through the switching device 231, so that the current working voltage of the fan 22 is equal to zero, so that the fan 22 is in a low-speed operation state.

[0151] It should be noted that when the duty cycle of the pulse wave is increased, the pulse time of the pulse wave becomes longer, so that the time for the fan 22 of the air circulation device 20 to operate at a high speed within one pulse cycle is extended, while the time for it to operate at a low speed is shortened, making the effective motor speed of the fan 22 within one pulse cycle increase. Therefore, the driving power of the air circulation device 20 increases, and the flow rate of the air driven by the air circulation device 20 increases accordingly. Correspondingly, when the duty cycle of the pulse wave is decreased, the pulse time of the pulse wave becomes shorter, so that the time for the fan 22 of the air circulation device 20 to operate at a high speed within one pulse cycle is shortened, while the time for it to operate at a low speed is extended, making the effective motor speed of the fan 22 within one pulse cycle decrease. Therefore, the driving power of the air circulation device 20 decreases, and the flow rate of the air driven by the air circulation device 20 decreases accordingly.

[0152] It can be understood that the pulse frequency of the stepless control signal of the present invention can be above 50HZ, which means that the state switching frequency of the fan 22 of the air circulation device 20 is also above 50HZ (that is, the fan 22 will switch states at least once within 20ms), so as to improve the adjustment accuracy of the driving power of the air circulation device 20. Of course, in other examples of the present invention, the pulse frequency of the stepless control signal can also be less than 50HZ, which will not be elaborated herein.

[0153] Preferably, the switching device 231 is implemented as a solid-state relay, so as to meet the requirement of high-frequency on-off of the power supply circuit 21 and be able to directly drive a large-current load (such as the fan 22) through a small stepless control signal. It can be understood that although the traditional mechanical relay can also control the on or off of the output circuit, there will be a huge transient current at the moment of its on or off, resulting in the generation of electric sparks at the moment of on or off of the traditional mechanical relay, which will damage the life of the relay and pose a huge safety hazard. In addition, the action time of the traditional mechanical relay is long, and it completely fails to meet the requirements of high-frequency switching or instant switching of the stepless speed control method of the present invention.

[0154] It is worth mentioning that the stepless speed control method of the present application can divide the working process of the air fryer 1 into four working stages, which are in sequence: a preheating stage, a primary heating stage, a constant temperature heating stage, and a cooling stage. In particular, when the air fryer 1 is in the preheating stage, the air heating device 30 of the air fryer 1 starts to heat, but due to its low own temperature, the heating efficiency of the air is low. At this time, it is necessary to stop the fan 22 from rotating to ensure that the own temperature of the air heating device 30 rises rapidly; when the air fryer 1 is in the primary heating stage, the own temperature of the air heating device 30 of the air fryer 1 is relatively high, but the air temperature difference at various places in the air fryer cavity 10 is relatively large. At this time, it is necessary to make the fan 22 rotate (such as rotating at full speed, etc.) to reduce the air temperature difference at various places in the air fryer cavity 10 and make the air temperatures at various places in the air fryer cavity 10 consistent; when the air fryer 1 is in the constant temperature heating stage, the air temperatures at various places in the air fryer cavity 10 reach the preset target temperature. At this time, it is necessary to reduce the rotation speed of the fan 22 to reduce heat loss and make the temperature of the air flowing in the air fryer cavity 10 maintain within the upper and lower limits of the preset target temperature; when the air fryer 1 is in the cooling stage, the air heating device 30 of the air fryer 1 stops heating, but due to its high own temperature, it will still heat the air. At this time, it is necessary to make the fan 22 rotate at full speed to ensure that the own temperature of the air heating device 30 and the air temperatures at various places in the air fryer cavity 10 drop rapidly, so as to take out the item to be fried.

[0155] Exemplarily, step C1 of the stepless speed control method may include the steps of:

[0156] In response to the air fryer 1 being in a preheating stage, adjusting the duty cycle of the pulse wave to 0 so that the driving power of the air circulation device 20 can be adjusted to zero power;

[0157] In response to the air fryer 1 being in a primary heating stage, increasing the duty cycle of the pulse wave so that the driving power of the air circulation device 20 can be steplessly increased;

[0158] In response to the air fryer 1 being in a constant temperature heating stage, modulating the duty cycle of the pulse wave to steplessly adjust the driving power of the air circulation device 20; and

[0159] In response to the air fryer 1 being in a cooling stage, adjusting the duty cycle of the pulse wave to 1 so that the driving power of the air circulation device 20 can be adjusted to full power.

[0160] Schematic system

[0161] Referring to the accompanying drawings of the specification Figure 10 As shown, a control system for an air fryer according to an embodiment of the present invention is illustrated, wherein the control system 70 for the air fryer may include a drive control module 71, a heating control module 72, and a time regulation module 73 that are communicatively connected to each other. The drive control module 71 is used to control an air circulation device of the air fryer to drive air to flow in an air fry cavity of the air fryer. The heating control module 72 is used to control an air heating device of the air fryer to heat the air flowing in the air fry cavity. The time regulation module 73 is used to correspondingly regulate the air frying time of the air fryer according to a measured value of the weight of the item to be fried accommodated in the air fry cavity.

[0162] It should be noted that, according to an example of the present application, as Figure 11A shown, the time regulation module 73 may include a weight measurement module 731 and a time adjustment module 732 that are communicatively connected to each other. The weight measurement module 731 is used to measure the initial weight of the item to be fried. The time adjustment module 732 is used to positively adjust the air frying time of the air fryer according to the magnitude of the initial weight of the item to be fried.

[0163] In the above example of the present application, the time adjustment module 732 is further used to: in response to the initial weight of the item to be fried being greater than or equal to the lower limit of the reference weight threshold and less than or equal to the upper limit of the reference weight threshold, adjust the air frying time of the air fryer to be equal to the reference air frying time; in response to the initial weight of the item to be fried being greater than the upper limit of the reference weight threshold, extend the air frying time of the air fryer to be greater than the reference air frying time; and in response to the initial weight of the item to be fried being less than the lower limit of the reference weight threshold, shorten the air frying time of the air fryer to be less than the reference air frying time.

[0164] Preferably, the time adjustment module is further used to, in response to the initial weight of the item to be fried being less than the minimum weight threshold, adjust the air frying time of the air fryer to be equal to zero.

[0165] It is worth mentioning that, according to another example of the present application, as Figure 11BAs shown, the time control module 73 may also include a weight measurement module 731 and a shutdown module 733 that are communicatively connected to each other, where the weight measurement module 731 is configured to measure the weight of the item to be fried accommodated in the air fry cavity in real time, so as to calculate the weight loss ratio of the item to be fried during the air frying process; where the shutdown module 733 is configured to automatically control the air fryer to stop the air frying process in response to the weight loss ratio of the item to be fried being within the predetermined proportion range.

[0166] According to another example of the present application, as Figure 11C As shown, the time control module 73 may further include a weight measurement module 731, a speed calculation module 734, and a shutdown module 733 that are communicatively connected to each other, where the weight measurement module 731 is configured to measure the weight of the item to be fried accommodated in the air fry cavity in real time, so as to obtain the real-time weight of the item to be fried during the air frying process of the air fryer; where the speed calculation module 734 is configured to calculate the real-time weight loss speed of the item to be fried by performing curve fitting processing on the real-time weight of the item to be fried; where the shutdown module 733 is configured to automatically control the air fryer to stop the air frying process in response to the real-time weight loss speed of the item to be fried being less than a predetermined speed threshold.

[0167] It is worth mentioning that, according to the above embodiments of the present application, as Figure 10 As shown, the control system 70 for the air fryer may further include a flow rate control module 74, where the flow rate control module 74 is configured to selectively adjust the working threshold of the driving power of the air circulation device according to the weight measurement value of the item to be fried, so that the maximum flow rate of the air in the air fry cavity is positively correlated with the initial weight of the item to be fried.

[0168] In another above embodiment of the present application, as Figure 10 As shown, the flow rate control module 74 includes a weight detection module 741, a command invocation module 742, and a threshold adjustment module 743 that are communicatively connected to each other, where the weight detection module 741 is configured to measure the weight of the item to be fried before the air frying process, so as to obtain the initial weight of the item to be fried; where the command invocation module 742 is configured to invoke a preset threshold command corresponding to the initial weight of the item to be fried from a command list; where the threshold adjustment module 743 is configured to adjust the working threshold of the driving power of the air circulation device to be equal to a preset threshold in response to the preset threshold command, so that the real-time speed of the air flowing in the air fry cavity is not greater than the maximum flow rate.

[0169] It should be noted that, as Figure 10As shown, the control system 70 for the air fryer may further include a stepless speed control system 50, where the stepless speed control system 50 may include a signal modulation module 51 and a power adjustment module 52 that are communicatively connected to each other. The signal modulation module 51 is used to modulate the parameters of a stepless control signal according to the working stage of the air fryer 1. The power adjustment module 52 is used to respond to the modulated stepless control signal and steplessly adjust the driving power of the air circulation device 20 to control the air flow rate in the air fryer cavity 10.

[0170] In other words, the stepless speed control system 50 is applicable to an air fryer 1, and the air fryer 1 includes an air fryer cavity 10, an air circulation device 20 for driving air to circulate in the air fryer cavity 10, and an air heating device 30 for heating the air circulating in the air fryer cavity 10. It should be noted that the stepless control signal in this application is a pulse wave, and the parameters of the stepless control signal include the duty cycle of the pulse wave.

[0171] Schematic device

[0172] Next, with reference to Figure 12 to describe an electronic device according to an embodiment of the present invention ( Figure 12 shows a block diagram of an electronic device according to an embodiment of the present invention). As Figure 12 shown, the electronic device 60 includes one or more processors 61 and a memory 62.

[0173] The processor 61 may be a central processing unit (CPU) or other forms of processing units with data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device 60 to perform desired functions.

[0174] The memory 62 may include one or more computing program products, and the computing program products may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory, etc. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc. One or more computing program instructions may be stored on the computer-readable storage media, and the processor 61 may run the program instructions to implement the methods of the various embodiments of the present invention described above and / or other desired functions.

[0175] In one example, as Figure 12As shown, the electronic device 60 may further include: an input device 63 and an output device 64, and these components are interconnected through a bus system and / or other forms of connection mechanisms (not shown).

[0176] For example, the input device 63 may be, for example, a camera module for collecting image data or video data, etc.

[0177] The output device 64 may output various information to the outside, including classification results, etc. The output device 64 may include, for example, a display, a speaker, a printer, and a communication network and its connected remote output devices, etc.

[0178] Of course, for simplicity, Figure 12 only some of the components related to the present invention in the electronic device 60 are shown, and components such as a bus, an input / output interface, etc. are omitted. In addition, according to specific application scenarios, the electronic device 60 may further include any other appropriate components.

[0179] It is worth mentioning that, as Figures 13 to 16 shown, an embodiment of the present invention may further provide an air fryer device, where the air fryer device may include an air fryer 1 and a control device 2. The air fryer 1 may include an air fry cavity 10 for accommodating items to be fried, an air circulation device 20 for driving air to circulate in the air fry cavity 10, and an air heating device 30 for heating the air flowing in the air fry cavity 10. The control device 2 is configured in the air fryer 1, and the control device 2 correspondingly adjusts the air fry time of the air fryer 1 according to the measured weight value of the items to be fried accommodated in the air fry cavity 10, which helps to improve the air fry effect of the air fryer 1.

[0180] It should be noted that the control device 2 of the air fryer device of the present invention may be, but is not limited to, implemented as a single-chip microcomputer or a control chip, where the single-chip microcomputer or the control chip is built into the air fry cavity 10 of the air fryer 1, so that the air fryer device can be used as an integrated device. Of course, in other examples of the present invention, the control device 2 of the air fryer device may also be implemented as a control terminal, where the control terminal is externally disposed to the air fryer 1, so that the air fryer device can be used as a split device. It can be understood that the control terminal is communicably connected to the air fryer 1, and still can control the air fryer 1 through the control terminal to achieve a good air fry effect.

[0181] According to the above embodiments of the present application, the air heating device 30 may be, but is not limited to, implemented as an electric heater disposed within the air fry cavity 10, where the electric heater is configured to convert electrical energy into heat energy to heat the air within the air fry cavity 10. Of course, in other examples of the present application, the air heating device 30 may also be implemented as a fluid heat exchanger disposed within the air fry cavity 10, where the fluid heat exchanger is configured to transfer the heat energy of a hot fluid to the air within the air fry cavity 10 to heat the air within the air fry cavity 10.

[0182] In addition, according to the above embodiments of the present application, as Figure 9 and Figure 15 shown, the air circulation device 20 of the air fryer 1 may be, but is not limited to, including a power supply circuit 21 configured to communicate with a power source E, a fan 22 disposed on the power supply circuit 21, and a speed adjustment device 23 disposed on the power supply circuit 21, where the speed adjustment device 23 is configured to instantaneously switch the real-time motor speed of the fan 23 in response to the stepless control signal, so as to achieve stepless adjustment of the driving power of the air circulation device 20. It can be understood that the fan 22 may be configured with a DC motor or an AC motor.

[0183] Exemplarily, as Figures 14 to 16 shown, the air fry cavity 10 of the air fryer 1 may include a housing 11 defining an internal chamber 110 and an air fry component 12, where the air fry component 12 is disposed on the housing 11, and the air fry component 12 is configured to hold the item to be fried within the internal chamber 110, such that the air heated by the air heating device 30 can circulate within the internal chamber 110 of the air fry cavity 10 under the drive of the air circulation device 20 to contact the item to be fried, thereby completing the air frying process of the item to be fried.

[0184] Preferably, the air fry component 12 is detachably disposed on the housing 11 to facilitate placing and removing the item to be fried on the air fry component 12. For example, the air fry component 12 may be, but is not limited to, installed on the housing 11 by means of snap fit or a door lock. It can be understood that the air fry component 12 may be, but is not limited to, implemented as a container such as a fry basket having meshes. Of course, the air fry component 12 may also be other types of components such as a rotary grill or a skewer, as long as it can hold the item to be fried within the internal chamber 110 of the housing 11, and the present invention will not elaborate further on this.

[0185] According to the above embodiments of the present invention, as Figure 15As shown, the fan 22 of the air circulation device 20 generally includes a motor 221 and a fan blade assembly 222, wherein the fan blade assembly 222 is drivably disposed on the motor 221 and is used to rotate under the drive of the motor 221 to fan the air to circulate in the air fry cavity 10.

[0186] It should be noted that since the temperature of the air (hereinafter referred to as hot air) heated by the air heating device 30 is relatively high, and the hot air will carry away the moisture of the item to be fried, so as to form a high-temperature and humid environment in the air fry cavity 10. However, the motor 221 of the fan 22 working in a high-temperature and humid environment will seriously affect its service life and safety performance. Therefore, to solve this problem, as Figure 15 shown, the air fry cavity 10 of the air fryer 1 of the present invention may further include a partition assembly 13, wherein the partition assembly 13 is disposed in the inner chamber 110 of the outer shell 11 to divide the inner chamber 110 into an upper compartment 1101 and a lower compartment 1102. The motor 221 of the fan 22 is disposed in the upper compartment 1101 of the inner chamber 110, and the fan blade assembly 222 of the fan 22 may include a first fan blade 2221 located in the lower compartment 1102 of the inner chamber 110, which is used to fan the air to circulate in the lower compartment 1102 under the drive of the motor 221. At the same time, the air fry component 12 and the air heating device 30 are both placed in the lower compartment 1102 of the inner chamber 110 to form a high-temperature and humid environment in the lower compartment 1102 of the inner chamber 110, so as to ensure the air frying process of the item to be fried is completed, while the upper compartment 1101 of the inner chamber 110 still maintains a relatively dry environment, which helps to improve the service life and safety performance of the motor 221 of the fan 22.

[0187] Preferably, the partition assembly 13 of the air fry cavity 10 may include an upper partition 131 and a lower partition 132, wherein the upper partition 131 and the lower partition 132 are spaced apart in the inner chamber 110 of the outer shell 11 to form an intermediate partition layer 1103 between the upper compartment 1101 and the lower compartment 1102 through the upper partition 131 and the lower partition 132. That is to say, the upper partition 131 and the lower partition 132 divide the inner chamber 110 from top to bottom into the upper compartment 1101, the intermediate partition layer 1103 and the lower compartment 1102, so as to block a large amount of heat in the lower compartment 1102 from being transferred to the upper compartment 1101 through the intermediate partition layer 1103, thereby preventing the motor 221 of the fan 22 from working in a high-temperature environment.

[0188] More preferably, the blade assembly 222 of the fan 22 may further include a second blade 2222 located in the middle partition layer 1103 of the inner chamber 110, which is used to fan air to flow in the middle partition layer 1103 under the drive of the motor 211, so as to enhance the heat insulation effect of the middle partition layer 1103. It can be understood that both the first blade 2221 and the second blade 2222 are arranged on the output shaft of the motor 221, and the second blade 2222 is located between the first blade 2221 and the main body of the motor 221. That is to say, the first blade 2221 is located outside the second blade 2222, so that the first blade 2221 serves as the outer blade of the fan 22, and the second blade 2222 serves as the inner blade of the fan 22.

[0189] It is worth mentioning that according to the above embodiments of the present application, as Figures 13 to 15 shown, the air fryer device may further include at least one weight sensor 40, wherein the weight sensor 40 is communicatively connected to the control device 2, and the weight sensor 40 is used to measure the weight of the item to be fried and transmit the measured weight data to the control device 2. In this way, the control device 2 can control the air fry time and / or the maximum air flow speed of the air fryer 1 according to the measured weight data according to a specific program corresponding to a certain material. It can be understood that the weight sensor 40 can transmit data in a wired or wireless manner, but is not limited thereto. For example, the weight sensor 40 can transmit data through wireless transmission methods such as Wifi, Bluetooth, local area network, Internet, 3G, 4G, and 5G.

[0190] Preferably, as Figure 15 shown, the weight sensor 40 can also be implemented as a built-in weighing device 41, wherein the built-in weighing device 41 is built into the air fryer 1 to form the air fryer device with an integrated structure, which is convenient for measuring the weight of the item to be fried contained in the air fryer 1 in real time. It can be understood that before putting the item to be fried, the built-in weighing device 41 measures the gross weight of the air fryer 1; after putting the item to be fried, the built-in weighing device 41 measures the total weight of the air fryer 1 and the item to be fried, and then subtracting the gross weight from the total weight can obtain the net weight of the item to be fried.

[0191] More preferably, as Figure 15As shown, the built-in weighing device 41 is disposed at the bottom of the outer shell 11 of the air fryer cavity 10, facilitating real-time measurement of the weight of the item to be fried. It can be understood that since the built-in weighing device 41 is disposed at the bottom of the outer shell 11, the built-in weighing device 41 can not only accurately measure the real-time weight of the item to be fried, but also avoid contact with high-temperature and high-humidity environments (such as the environment in the lower compartment 1102 of the air fryer cavity 10).

[0192] It should be noted that, in the first variant example of the present application, as Figure 17 shown, the built-in weighing device 41 may also be disposed in the lower compartment 1102 of the outer shell 11 of the air fryer cavity 10 for measuring the weight of the air fryer component 12, and still be able to indirectly measure the real-time weight of the item to be fried. Of course, in other examples of the present application, the built-in weighing device 41 may also be disposed on the air fryer component 12 to directly measure the real-time weight of the item to be fried. It can be understood that when the built-in weighing device 41 is disposed in the lower compartment 1102 of the outer shell 11 or the air fryer part 12, heat insulation and moisture insulation protection need to be provided for the built-in weighing device 41 to ensure the normal operation of the built-in weighing device 41.

[0193] In the second variant example of the present application, as Figure 18 shown, the weight sensor 40 may be implemented as an external weighing platform 42. For example, before the item to be fried is placed in the air fryer 1, the item to be fried is first placed on the external weighing platform 42 for weighing to directly measure the weight of the item to be fried. In addition, the air fryer 1 of the present application may also be directly placed on the external weighing platform 42 for weighing to measure the total weight before and after placing the item to be fried, thereby indirectly measuring the weight of the item to be fried. In other words, the external weighing platform 42 is external to the air fryer 1 to form the air fryer device having a split structure.

[0194] According to the above embodiments of the present invention, as Figure 13 and Figure 15 shown, the air fryer 1 may further include a temperature sensor 80, wherein the temperature sensor 80 is disposed in the air fryer cavity 10, and the temperature sensor 80 is communicatively connected to the control device 2, wherein the temperature sensor 80 is used to detect in real time the temperature of the air flowing in the air fryer cavity 10 and transmit the detected temperature data to the control device 2 for analysis. It can be understood that the temperature sensor 80 may be, but is not limited to, implemented as an NTC temperature sensor.

[0195] Preferably, the temperature sensor 80 is disposed in the lower compartment 1102 of the internal chamber 110 of the housing 11 and is located adjacent to the air heating device 30 so as to accurately detect the real-time temperature of the air circulating in the lower compartment 1102.

[0196] It is worth mentioning that, according to another aspect of the present application, as Figure 19 shown, an embodiment of the present application further provides an air fryer device, wherein the air fryer device may include an air fryer 1 and the above-mentioned control system 70 for the air fryer, and the control system 70 for the air fryer is configured in the air fryer 1 to regulate the air frying process of the air fryer 1, which helps to improve the air frying effect of the air fryer 1.

[0197] It should also be pointed out that in the devices, equipment and methods of the present invention, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations shall be regarded as equivalent solutions of the present invention.

[0198] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present invention. Therefore, the present invention is not intended to be limited to the aspects shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0199] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and illustrated in the embodiments, and the embodiments of the present invention can have any deformation or modification without departing from the said principles.

Claims

1. A control method for an air fryer, characterized in that, Including steps: Controlling an air circulation device of the air fryer to drive air to flow in an air fryer cavity of the air fryer; Controlling an air heating device of the air fryer to heat the air flowing in the air fryer cavity; And Measuring in real time the weight of an item to be fried accommodated in the air fryer cavity to obtain the real-time weight of the item to be fried during the air frying process of the air fryer; Performing curve fitting processing on the real-time weight of the item to be fried to calculate the real-time weight loss rate of the item to be fried; And In response to the real-time weight loss rate of the item to be fried being less than a predetermined speed threshold, automatically controlling the air fryer to stop the air frying process; Measuring the weight of the item to be fried before the air frying process to obtain the initial weight of the item to be fried; Calling a preset threshold instruction corresponding to the initial weight of the item to be fried from a list of instructions; And In response to the preset threshold instruction, regulating the working threshold of the driving power of the air circulation device to be equal to a preset threshold, so that the real-time speed of the air flowing in the air fryer cavity is not greater than the maximum flow speed, and the maximum flow speed is positively correlated with the initial weight of the item to be fried.

2. The control method for an air fryer according to claim 1, wherein By modulating the parameters of a stepless control signal within a parameter modulation range, regulating the working threshold of the driving power of the air circulation device.

3. The control method for an air fryer according to claim 2, further including steps: According to the working stage of the air fryer, controlling the flow speed of the air in the air fryer cavity by a stepless speed control method, wherein the stepless speed control method includes steps: Modulating the parameters of a stepless control signal according to the working stage of the air fryer; and In response to the modulated stepless control signal, steplessly adjusting the driving power of the air circulation device to control the flow speed of the air in the air fryer cavity.

4. A control system for an air fryer, wherein the air fryer includes an air fryer cavity, an air circulation device for driving air to circulate and flow in the air fryer cavity, and an air heating device for heating the air circulating and flowing in the air fryer cavity, characterized in that The control system for the air fryer includes components communicatively connected to each other: A driving control module for controlling the air circulation device to drive the air to flow in the air fryer cavity; A heating control module for controlling the air heating device to heat the air flowing in the air fryer cavity; And A time control module, wherein the time control module includes a weight measurement module, a speed calculation module, and a shutdown module that are communicatively connected to each other. The weight measurement module is configured to measure the weight of the item to be fried accommodated in the air fryer cavity in real time to obtain the real-time weight of the item to be fried during the air frying process in the air fryer. The speed calculation module is configured to calculate the real-time weight loss speed of the item to be fried by performing curve fitting on the real-time weight of the item to be fried. The shutdown module is configured to automatically control the air fryer to stop the air frying process in response to the real-time weight loss speed of the item to be fried being less than a predetermined speed threshold. A flow rate control module, wherein the flow rate control module includes a weight detection module, a command invocation module, and a threshold adjustment module that are communicatively connected to each other. The weight detection module is configured to measure the weight of the item to be fried before the air frying process to obtain the initial weight of the item to be fried. The command invocation module is configured to invoke a preset threshold command corresponding to the initial weight of the item to be fried from a command list. The threshold adjustment module is configured to, in response to the preset threshold command, adjust the working threshold of the driving power of the air circulation device to be equal to a preset threshold, such that the real-time speed of the air flowing in the air fryer cavity is not greater than the maximum flow speed, and the maximum flow speed is positively correlated with the initial weight of the item to be fried.

5. An electronic device, characterized in that it includes: a processor for executing program instructions; and a memory, wherein the memory is configured to store program instructions executable by the processor to implement a control method for an air fryer. The control method for the air fryer includes the steps of: controlling an air circulation device of the air fryer to drive air to flow in an air fryer cavity of the air fryer; controlling an air heating device of the air fryer to heat the air flowing in the air fryer cavity; and measuring in real time the weight of the item to be fried accommodated in the air fryer cavity to obtain the real-time weight of the item to be fried during the air frying process in the air fryer; performing curve fitting on the real-time weight of the item to be fried to calculate the real-time weight loss speed of the item to be fried; and automatically controlling the air fryer to stop the air frying process in response to the real-time weight loss speed of the item to be fried being less than a predetermined speed threshold; measuring the weight of the item to be fried before the air frying process to obtain the initial weight of the item to be fried; invoking a preset threshold command corresponding to the initial weight of the item to be fried from a command list; and in response to the preset threshold command, adjusting the working threshold of the driving power of the air circulation device to be equal to a preset threshold, such that the real-time speed of the air flowing in the air fryer cavity is not greater than the maximum flow speed, and the maximum flow speed is positively correlated with the initial weight of the item to be fried.

Images