Refrigerator control method and device, storage medium and refrigerator

Abstract

The invention provides a refrigerator control method and device, a storage medium and a refrigerator, the refrigerator comprises an air duct and a heating assembly, the heating assembly is used for radiating heat to the air duct, the control method comprises the steps that first target time is obtained, and the first target time is the time when the icing amount in the air duct reaches the preset ice amount; and before the first target time is reached, the heating assembly is controlled to be started for preheating. According to the control method of the refrigerator, the heating assembly is controlled to conduct preheating in advance, the ice in the air duct can be melted in time when the actual icing amount in the air duct reaches the preset ice amount or before, the deicing efficiency of the air duct is improved, and the situation that the ice amount in the air duct is further increased to affect normal air supply and return is prevented; and the influence on the refrigeration efficiency of the refrigerator is avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of refrigerators, and in particular, relates to a refrigerator control method, a refrigerator control device, a storage medium, and a refrigerator. Background Art

[0002] The evaporation chamber of the refrigerator supplies air to and returns air to the storage compartment through the supply and return air ducts. After the refrigerator has been running for a period of time, especially when the ambient temperature is too high, the internal humidity is too high, the door seal is aged and causes cold leakage, the supply and return air ducts of the refrigerator are prone to ice. Some existing refrigerators, when detecting that the amount of ice in the air duct reaches a set value, turn on the heating component to remove the ice in the air duct. However, the air duct deicing under this method has a certain hysteresis, resulting in low deicing efficiency. Summary of the invention

[0003] The embodiments of the present application provide a refrigerator control method, a device, a storage medium and a refrigerator, which can solve the problem of low deicing efficiency of the air duct of the refrigerator.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] A control method for a refrigerator, the refrigerator comprising an air duct and a heating component, the heating component being used to radiate heat to the air duct, the control method comprising:

[0006] Obtaining a first target time, where the first target time is the time when the amount of ice in the air duct reaches a preset amount of ice;

[0007] Before the first target time is reached, the heating component is controlled to turn on for preheating.

[0008] In some embodiments, obtaining the first target time includes:

[0009] Obtaining a first freezing amount and freezing rate of the current air duct;

[0010] Predicting future ice amount change information in the air duct according to the first ice amount and the ice rate;

[0011] The first target time is determined according to the ice amount change information.

[0012] In some embodiments, predicting the future change information of the amount of ice in the air duct according to the first amount of ice and the ice rate includes:

[0013] Get the preset prediction model;

[0014] The first freezing amount and the freezing rate are input into the preset prediction model to obtain the freezing amount change information.

[0015] In some embodiments, obtaining the current icing rate of the air duct includes:

[0016] Obtaining the current flow rate and humidity of the air in the air duct, the temperature of the air duct, and the dew point temperature;

[0017] The freezing rate is determined based on the flow rate, the humidity, the temperature of the air duct, and the dew point temperature.

[0018] In some embodiments, the air duct includes an air inlet end and an air outlet end, the heating assembly includes a first heating element and a second heating element, the first heating element is arranged at the air inlet end, and the second heating element is arranged at the air outlet end, and obtaining the temperature of the air duct includes:

[0019] Controlling the first heating element to maintain a first preset temperature, and controlling the second heating element to maintain a second preset temperature;

[0020] Acquire a first current intensity passing through the first heating element, and acquire a second current intensity passing through the second heating element;

[0021] Determining a first temperature of the air inlet end according to the first current intensity, and determining a second temperature of the air outlet end according to the second current intensity;

[0022] The temperature of the air duct is determined according to the first temperature and the second temperature.

[0023] In some embodiments, before reaching the first target time, controlling the heating component to turn on includes:

[0024] Get the preset duration;

[0025] Determine a second target time according to the first target time and the preset time, the first target time being the time when the second target time is reached after the preset time;

[0026] When the second target time is reached, the heating component is controlled to turn on.

[0027] In some embodiments, before reaching the first target time, controlling the heating component to turn on includes:

[0028] Get the preset duration;

[0029] Determine a second target time according to the first target time and the preset time, the first target time being the time when the second target time is reached after the preset time;

[0030] Before the second target time is reached, the heating component is controlled to operate at a first heating power, and after the second target time is reached, the heating component is controlled to operate at a second heating power, where the second heating power is greater than the first heating power.

[0031] A control device for a refrigerator, the refrigerator comprising an air duct and a heating component, the heating component being used to radiate heat to the air duct, the control device comprising:

[0032] An acquisition module, used for acquiring a first target time, where the first target time is the time when the amount of ice in the air duct reaches a preset amount of ice;

[0033] The control module is used to control the heating component to turn on for preheating before the first target time is reached.

[0034] A refrigerator, comprising:

[0035] Air duct;

[0036] A heating component, used for radiating heat to the air duct;

[0037] A controller, connected to the heating component, is used to:

[0038] Obtaining a first target time, where the first target time is the time when the amount of ice in the air duct reaches a preset amount of ice;

[0039] Before the first target time is reached, the heating component is controlled to turn on for preheating.

[0040] A storage medium stores a computer program, which executes the above-mentioned refrigerator control method when the computer program is running.

[0041] The refrigerator control method, device, storage medium and refrigerator provided in the embodiments of the present application can melt the ice in the air duct in time when the actual amount of ice in the air duct reaches a preset amount of ice or before by controlling the heating component to preheat in advance, thereby improving the de-icing efficiency of the air duct, preventing the amount of ice in the air duct from further increasing and affecting the normal return air, and avoiding affecting the refrigeration efficiency of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0043] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0044] Figure 1 A flowchart of a refrigerator control method provided in an embodiment of the present application.

[0045] Figure 2 A schematic diagram of the structure of a refrigerator control device provided in an embodiment of the present application.

[0046] Figure 3 A schematic diagram of the structure of a refrigerator provided in an embodiment of the present application.

[0047] Figure 4 Another structural schematic diagram of the refrigerator provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0049] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0050] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0051] The use of "suitable for" or "configured to" in this application is meant to be open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps. In addition, the use of "based on" is meant to be open and inclusive, because the process, step, calculation or other action "based on" one or more stated conditions or values ​​can be based on additional conditions or values ​​beyond the stated values ​​in practice.

[0052] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0053] The present application embodiment provides a control method for a refrigerator, which may be a single-door, double-door, side-by-side, French, cross-type refrigerator or other types of refrigerators. Figure 1 , Figure 1 The flowchart of the refrigerator control method provided in the embodiment of the present application. The refrigerator includes an air duct and a heating component, the heating component is used to radiate heat to the air duct, and the refrigerator control method includes the following steps S101-S102:

[0054] Step S101: obtaining a first target time, where the first target time is the time when the amount of ice in the air duct reaches a preset amount of ice;

[0055] After the refrigerator has been running for a period of time, low-temperature air continuously flows through the air duct. When the air temperature is too low or the humidity is too high, the inner surface of the air duct is prone to ice formation, affecting the normal supply and return air of the air duct, which may in turn affect the refrigeration effect of the items in the refrigerator.

[0056] It should be noted that when the amount of ice in the air duct reaches the preset amount of ice, it is considered that the amount of ice in the current air duct is sufficient and may affect the normal air supply and return of the air duct. Therefore, the air duct needs to be de-iced immediately to prevent the air duct from being unable to normally supply and return air and affecting the refrigeration effect and normal operation of the refrigerator. The preset amount of ice can be determined by the designer according to actual test conditions and pre-entered into the refrigerator.

[0057] Step S102: before the first target time is reached, the heating component is controlled to turn on for preheating.

[0058] It is understandable that after the heating component is turned on, its own temperature gradually rises until it reaches the set temperature, that is, after the heating component is turned on for a period of time, the heat generated by it can actually melt the ice in the air duct, resulting in the amount of ice in the air duct continuing to increase during the period when the heating component is just turned on. Therefore, if the heating component is turned on after the first target time is reached, there will be a period of time when the amount of ice in the air duct continues to increase after the air duct has reached the preset amount of ice, which will not only reduce the deicing efficiency of the air duct, but also affect the normal return air of the air duct during this period, thereby affecting the refrigeration efficiency of the refrigerator. However, if the heating component is turned on before the first target time is reached, the heating component itself can be preheated for a period of time. When the actual amount of ice in the air duct reaches or before the preset amount of ice, the heating component can melt the ice in the air duct in time to avoid the amount of ice in the air duct exceeding the preset amount of ice.

[0059] The control method of the refrigerator provided in the embodiment of the present application controls the heating component to preheat in advance, so as to melt the ice in the air duct in time when the actual amount of ice in the air duct reaches the preset amount of ice or before, thereby improving the de-icing efficiency of the air duct, preventing the amount of ice in the air duct from further increasing and affecting the normal return air, and avoiding affecting the refrigeration efficiency of the refrigerator.

[0060] Furthermore, in order to control the heating component to turn on before the amount of ice in the air duct reaches a preset amount of ice, it is necessary to predict when the amount of ice in the air duct will reach the preset amount of ice, that is, it is necessary to predict the first target time. Regarding how to obtain the first target time, the present application provides the following embodiment, and obtaining the first target time includes:

[0061] Obtain the first freezing amount and freezing rate of the current air duct;

[0062] Predicting the future change information of the amount of ice in the air duct according to the first amount of ice and the ice rate;

[0063] The first target time is determined according to the ice amount change information.

[0064] The first amount of ice can be obtained by setting a detection device in the air duct. For example, an image sensor can be directly set in the air duct to collect the image of the air duct to analyze the first amount of ice in the current air duct; in addition, an acoustic sensor, an infrared sensor, etc. can be set in the air duct to detect the ice thickness on the inner surface of the air duct by the acoustic sensor, and then the first amount of ice in the current air duct can be calculated according to the ice thickness; and the temperature, humidity, wind speed and other parameters in the air duct can be monitored in real time, and the first amount of ice in the current air duct can be calculated by an intelligent algorithm, which is not specifically limited here.

[0065] It should be noted that the freezing rate of the air duct indicates the amount of ice in the air duct per unit time. The future freezing amount change information in the air duct indicates the information that the amount of ice in the air duct increases or decreases with time within a preset time in the future. In this way, the first target time when the amount of ice in the air duct reaches the preset amount of ice can be extracted through the freezing amount change information.

[0066] Regarding how to predict future icing amount change information, the present application provides the following embodiment, predicting the future icing amount change information in the air duct according to the first icing amount and the icing rate includes:

[0067] Obtaining a prediction model;

[0068] The first freezing amount and freezing rate are input into a preset prediction model to obtain freezing amount change information.

[0069] It should be noted that the prediction model is trained based on several groups of sample data. The sample data may include sample freezing data and sample freezing amount change information corresponding to the sample freezing data. The freezing data includes freezing amount and freezing rate, and may also include duct temperature and humidity, ambient humidity and other parameters. Among them, the sample data may be obtained by the tester through testing. The data in the sample data should ensure accuracy, and the amount of data should be sufficient to ensure the calculation accuracy of the prediction model. The prediction model can be a linear model, an exponential model or other types of models obtained by training, or it can be obtained by using a time series analysis method, such as training an autoregressive integral moving average model, or it can be a model obtained by weighted fusion of multiple types of models.

[0070] In some embodiments, when training the prediction model through sample data, a series of preprocessing and data processing operations such as imbalance and category processing can also be performed on the original sample data. On the one hand, it can prevent the classification model from failing to work due to data reasons, and on the other hand, it can accelerate the training of the classification model, improve the accuracy of the algorithm, and improve the adaptability of the classification algorithm model to unbalanced data sets. In addition, after the refrigerator is put into use, for example, the ice data of the air duct when the refrigerator is running is continuously collected for learning to continuously optimize the prediction parameters. In this way, the accuracy of the prediction model prediction can be improved.

[0071] In some embodiments, the predicted ice amount change information can also be visualized through the display device of the refrigerator. For example, the ice amount change information can be intuitively displayed on the display interface in the form of icons, curves, etc., so that the user can view the refrigerator's ice conditions, historical data and prediction results through the interface.

[0072] Regarding how to obtain the freezing rate of the air duct, the present application provides the following implementation method, that is, obtaining the freezing rate of the current air duct includes:

[0073] Obtain the current air velocity and humidity in the air duct, the air duct temperature and dew point temperature;

[0074] A freezing rate is determined based on the flow rate, the humidity value, the first temperature, and the dew point temperature.

[0075] Exemplarily, the freezing rate is calculated based on the following formula:

[0076] I=k*V*RH*(T S -T d ), where I represents the freezing rate of the current air duct, k represents the coefficient, V represents the flow rate of the air in the current air duct, RH represents the relative humidity of the air in the current air duct, and T S Indicates the current temperature of the duct surface, T d Indicates the dew point temperature. The k value can be determined by the designer through testing.

[0077] In some embodiments, the air duct includes an air inlet end and an air outlet end, the heating assembly includes a first heating element and a second heating element, the first heating element is arranged at the air inlet end, and the second heating element is arranged at the air outlet end, and obtaining the temperature of the air duct includes:

[0078] Controlling the first heating element to maintain a first preset temperature, and controlling the second heating element to maintain a second preset temperature;

[0079] Obtaining a first current intensity passed through the first heating element, and obtaining a second preset parameter corresponding to the second heating element and a second current intensity passed through the first heating element;

[0080] Determine a first temperature at the air inlet end according to the first current intensity, and determine a second temperature at the air outlet end according to the second current intensity;

[0081] The temperature of the air outlet is determined according to the first temperature and the second temperature.

[0082] It can be understood that when the first heating element maintains the first preset temperature, the intensity of the current passing through it is related to the temperature of the air inlet end; specifically, the lower the temperature of the air inlet end, the more heat the first heating element needs to radiate to maintain the first preset temperature, and the current intensity required to pass through the first heating element is relatively large; the higher the temperature of the air inlet end, the less heat the first heating element needs to radiate to maintain the first preset temperature, and the current intensity required to pass through the first heating element is relatively small. In this way, by obtaining the first current intensity, the first temperature of the air inlet end can be calculated. For example, if the first heating element is an electric heating wire, the first temperature can be calculated based on the resistance value of the first heating element and the first current intensity.

[0083] When the second heating element maintains the second preset temperature, the intensity of the current passing through it is related to the temperature of the air outlet; specifically, the lower the temperature of the air outlet, the more heat the second heating element needs to radiate to maintain the second preset temperature, and the current intensity required to pass through the second heating element is relatively large; the higher the temperature of the air outlet, the less heat the second heating element needs to radiate to maintain the second preset temperature, and the current intensity required to pass through the second heating element is relatively small. In this way, by obtaining the second current intensity, the second temperature of the air outlet can be calculated. For example, if the second heating element is an electric heating wire, the second temperature can be calculated based on the resistance value of the second heating element and the second current intensity.

[0084] In addition, the heating component in the present application is used to radiate heat to de-ice the air duct on the one hand, and is also reused for measuring the temperature of the air duct on the other hand. The refrigerator does not need to have a separate temperature detection device for the air duct, saving cost and space.

[0085] In some embodiments, the air duct includes an air inlet and an air outlet, and obtaining the humidity of the air in the air duct includes:

[0086] Obtaining a first humidity at an air inlet and a second humidity at an air outlet;

[0087] The humidity of the air duct is determined according to the first humidity and the second humidity.

[0088] Exemplarily, a humidity sensor is disposed at the air inlet and the air outlet of the air duct respectively to obtain the first humidity and the second humidity.

[0089] Further, regarding when to control the heating component to start preheating, the present application provides the following implementation, that is, before reaching the first target time, controlling the heating component to start includes:

[0090] Get the preset duration;

[0091] Determine a second target time according to the first target time and the preset duration, the first target time being the time when the second target time is reached after the preset duration;

[0092] When the second target time is reached, the heating component is controlled to turn on.

[0093] The preset time can be determined by the designer according to the actual temperature rise of the heating component. For example, after the heating component is turned on for the preset time, the heat generated by it is sufficient to quickly melt the ice in the air duct without causing the amount of ice in the air duct to continue to increase. In some other embodiments, the preset time can also be the time obtained by correcting the refrigerator based on the initial set time according to the actual amount of ice in the air duct, temperature and humidity and other parameters.

[0094] In actual application, before reaching the second target time, the amount of ice in the air duct is lower than the preset amount of ice and is roughly in a state of continuous increase; when the second target time is reached, the heating component is turned on, and after a preset preheating time, the time reaches the first target time. Within the preset time, the amount of ice in the air duct may continue to increase, or may increase first and then decrease; after reaching the first target time, the amount of ice in the air duct begins to continuously decrease under the heating of the heating component until it is completely melted.

[0095] In a parallel embodiment, before the first target time is reached, controlling the heating component to turn on includes:

[0096] Get the preset duration;

[0097] Determine a second target time according to the first target time and the preset duration, the first target time being the time when the second target time is reached after the preset duration;

[0098] Before the second target time is reached, the heating component is controlled to operate at a first heating power, and after the second target time is reached, the heating component is controlled to operate at a second heating power, where the second heating power is greater than the first heating power.

[0099] In actual application, before reaching the second target time, the amount of ice in the air duct is lower than the preset amount of ice and is roughly in a state of continuous increase. By controlling the heating component to operate at the first heating power, the freezing rate can be reduced; when the second target time is reached, the heating component starts to operate at the second heating power, and after a preset preheating time, the time reaches the first target time. Within the preset time, the amount of ice in the air duct may continue to increase, or may first increase and then decrease; after reaching the first target time, the amount of ice in the air duct begins to continuously decrease under the heating of the heating component until it is completely melted.

[0100] In some embodiments, in order to reduce power consumption, the heating component can be turned off in advance before the ice in the air duct is completely melted, and the ice in the air duct can be completely melted by preheating.

[0101] The control method of the refrigerator provided in the embodiment of the present application controls the heating component to preheat in advance, so as to melt the ice in the air duct in time when the actual amount of ice in the air duct reaches the preset amount of ice or before, thereby improving the de-icing efficiency of the air duct, preventing the amount of ice in the air duct from further increasing and affecting the normal return air, and avoiding affecting the refrigeration efficiency of the refrigerator.

[0102] The present application also provides a refrigerator control device. For example, see Figure 2 , Figure 2 The schematic diagram of the structure of the control device of the refrigerator provided in the embodiment of the present application is as follows: The control device 200 includes an acquisition module 210 and a control module 220 .

[0103] Among them, the acquisition module 210 is used to obtain the first target time, which is the time when the amount of ice in the air duct reaches a preset amount of ice; the control module 220 is used to control the heating component to turn on for preheating before the first target time is reached.

[0104] The control device of the refrigerator provided in the embodiment of the present application controls the heating component to preheat in advance, so as to melt the ice in the air duct in time when the actual amount of ice in the air duct reaches the preset amount of ice or before, thereby improving the de-icing efficiency of the air duct, preventing the amount of ice in the air duct from further increasing and affecting the normal return air, and avoiding affecting the refrigeration efficiency of the refrigerator.

[0105] The present application also provides a refrigerator, for example, see Figure 3-Figure 4 , Figure 3 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of the present application. Figure 4 Another structural schematic diagram of a refrigerator provided in an embodiment of the present application. The refrigerator 300 may be as follows Figure 3 The French refrigerator shown may also be a single-door, double-door, side-by-side, cross-door refrigerator or other types of refrigerators. The refrigerator 300 includes an air duct 310 , a heating component 320 and a controller 330 .

[0106] Among them, the heating component 320 is used to radiate heat to the air duct 310; the controller 330 is connected to the heating component 320, and is used to: obtain a first target time, the first target time is the time when the amount of ice in the air duct 310 reaches a preset amount of ice; before reaching the first target time, control the heating component 320 to turn on for preheating.

[0107] In some embodiments, a vibration device (not shown) is further provided on the air duct, and the vibration device is connected to the controller 330. When the air duct 310 reaches the de-icing condition, the controller 330 controls the vibration device to generate vibration to remove ice in the air duct 310.

[0108] The refrigerator 300 provided in the embodiment of the present application can melt the ice in the air duct 310 in time when the actual amount of ice in the air duct 310 reaches a preset amount of ice or before, by controlling the heating component 320 to preheat in advance, thereby improving the de-icing efficiency of the air duct 310, preventing the amount of ice in the air duct 310 from further increasing and affecting the normal return air, thereby avoiding affecting the refrigeration efficiency of the refrigerator 300.

[0109] An embodiment of the present application further provides a storage medium on which a computer program is stored. When the computer program is run, the control method of the refrigerator in any embodiment is executed.

[0110] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or magnetic tapes, etc.), optical disks (e.g., CDs (Compact Disks), DVDs (Digital Versatile Disks), etc.), smart cards and flash memory devices (e.g., EPROMs (Erasable Programmable Read-Only Memory), cards, sticks or key drives, etc.). The various computer-readable storage media described in the embodiments of the present application may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0111] The control method, device, storage medium and refrigerator provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A refrigerator control method, characterized in that: The refrigerator comprises an air duct and a heating component, wherein the heating component is used to radiate heat to the air duct, and the control method comprises: Obtaining a first target time, where the first target time is the time when the amount of ice in the air duct reaches a preset amount of ice; Before the first target time is reached, the heating component is controlled to turn on for preheating.

2. The refrigerator control method according to claim 1, characterized in that: Before obtaining the first target time, it also includes: Obtaining a first freezing amount and freezing rate of the current air duct; Predicting future ice amount change information in the air duct according to the first ice amount and the ice rate; The first target time is determined according to the ice amount change information.

3. The refrigerator control method according to claim 2, characterized in that: The predicting of the future change information of the amount of ice in the air duct according to the first amount of ice and the ice rate includes: Obtain a preset prediction model; The first freezing amount and the freezing rate are input into the preset prediction model to obtain the freezing amount change information.

4. The refrigerator control method according to claim 2, characterized in that: The obtaining of the current freezing rate of the air duct comprises: Obtaining the current flow rate and humidity of the air in the air duct, the temperature of the air duct, and the dew point temperature; The freezing rate is determined based on the flow rate, the humidity, the temperature of the air duct, and the dew point temperature.

5. The refrigerator control method according to claim 4, characterized in that: The air duct includes an air inlet end and an air outlet end, the heating assembly includes a first heating element and a second heating element, the first heating element is arranged at the air inlet end, and the second heating element is arranged at the air outlet end, and obtaining the temperature of the air duct includes: Controlling the first heating element to maintain a first preset temperature, and controlling the second heating element to maintain a second preset temperature; Acquire a first current intensity passing through the first heating element, and acquire a second current intensity passing through the second heating element; Determining a first temperature of the air inlet end according to the first current intensity, and determining a second temperature of the air outlet end according to the second current intensity; The temperature of the air duct is determined according to the first temperature and the second temperature.

6. The refrigerator control method according to any one of claims 1 to 5, characterized in that: Before reaching the first target time, controlling the heating component to turn on includes: Get the preset duration; Determine a second target time according to the first target time and the preset time, the first target time being the time when the second target time is reached after the preset time; When the second target time is reached, the heating component is controlled to turn on.

7. The refrigerator control method according to any one of claims 1 to 5, characterized in that: Before reaching the first target time, controlling the heating component to turn on includes: Get the preset duration; Determine a second target time according to the first target time and the preset time, the first target time being the time when the second target time is reached after the preset time; Before the second target time is reached, the heating component is controlled to operate at a first heating power, and after the second target time is reached, the heating component is controlled to operate at a second heating power, where the second heating power is greater than the first heating power.

8. A control device for a refrigerator, characterized in that: The refrigerator comprises an air duct and a heating component, wherein the heating component is used to radiate heat to the air duct, and the control device comprises: An acquisition module, used for acquiring a first target time, where the first target time is the time when the amount of ice in the air duct reaches a preset amount of ice; The control module is used to control the heating component to turn on for preheating before the first target time is reached.

9. A refrigerator, characterized in that: include: Air duct; A heating component, used for radiating heat to the air duct; A controller, connected to the heating component, is used to: Obtaining a first target time, where the first target time is the time when the amount of ice in the air duct reaches a preset amount of ice; Before the first target time is reached, the heating component is controlled to turn on for preheating.

10. A storage medium, characterized in that: A computer program is stored thereon, and when the computer program is run, the control method for the refrigerator as described in any one of claims 1 to 7 is executed.

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