Refrigerator control method and device, refrigerator and storage medium
By installing heating elements around the refrigerator's return air vent and heating them when the refrigeration fan stops running, the problem of excessively low temperatures or ice buildup at the bottom of the refrigerator compartment is solved, achieving excellent food storage results in the refrigerator.
Patent Information
- Application Number
- CN202511317041.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2025-11-18
AI Technical Summary
In traditional side-by-side refrigerators, the bottom of the refrigerator compartment often becomes too cold or freezes due to cold air seeping in from the return air vent.
Heating elements are installed around the refrigeration return air vent, and the controller heats the air when the refrigeration fan stops running to prevent cold air from seeping back into the refrigeration compartment.
It effectively prevents the temperature at the bottom of the refrigerator from getting too low or freezing, ensuring proper food storage.
Smart Images
Figure CN120970192A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of refrigerators, and particularly relates to a refrigerator control method and device, a refrigerator and a storage medium. BACKGROUND
[0002] A conventional side-by-side refrigerator usually only has an evaporator and a freezing fan in the freezing chamber for cost control. The refrigeration of the refrigerating chamber is controlled by controlling the opening and closing of the refrigerating air door, so as to realize the temperature control of the refrigerating chamber.
[0003] The return air inlet of the refrigerating chamber is usually arranged at the bottom. In a low-temperature environment, when the freezing fan is stopped, the cold air in the freezing chamber will penetrate into the refrigerating chamber through the refrigerating return air inlet under the driving of the air pressure difference, resulting in too low temperature at the bottom of the refrigerating chamber, even icing, which is not conducive to the good storage of food in the refrigerating chamber. SUMMARY
[0004] The refrigerator control method and device, the refrigerator and the storage medium provided by the embodiments of the application can solve the technical problem that the bottom temperature of the refrigerating chamber is too low due to the reverse penetration of cold air at the return air inlet.
[0005] To achieve the above object, the application provides the following technical solutions:
[0006] A refrigerator control method, the refrigerator comprising a refrigerating chamber, a freezing chamber and a freezing fan, the freezing fan being configured to provide cold air to the freezing chamber; the refrigerating chamber having a refrigerating return air inlet, the periphery of the refrigerating return air inlet being provided with a heating element, the control method comprising:
[0007] obtaining a current ambient temperature and a working state of the freezing fan;
[0008] controlling the heating element to heat when the ambient temperature is lower than a first preset temperature threshold and the working state of the freezing fan is stopped.
[0009] In some embodiments, after the heating element is controlled to start heating, the control method further comprises:
[0010] obtaining a first temperature of the refrigerating chamber and a working state of the freezing fan;
[0011] controlling the heating element to stop heating when the first temperature exceeds a second preset temperature threshold or the freezing fan starts to run.
[0012] In some embodiments, before the heating element is controlled to heat, the control method further comprises:
[0013] obtaining current temperature information of the refrigerator;
[0014] determine a stop time of the freezing fan according to the current temperature information;
[0015] determine an opening time of the heating member according to the stop time, the opening time being before the stop time;
[0016] control the heating member to start at the opening time for preheating.
[0017] In some embodiments, the determining the stop time of the freezing fan according to the current temperature information comprises:
[0018] inputting the current temperature information into a time prediction model to output a first target time for the refrigerator to reach a stop point temperature;
[0019] determining the stop time according to the first target time.
[0020] In some embodiments, the determining the stop time according to the first target time comprises:
[0021] obtaining thermal load information of the refrigerator at present;
[0022] correcting the first target time according to the thermal load information to obtain the stop time.
[0023] A control device of a refrigerator, the refrigerator comprising a refrigerating chamber, a freezing chamber and a freezing fan for providing cold air to the freezing chamber; the refrigerating chamber has a refrigerating return air inlet, and a heating member is arranged around the refrigerating return air inlet; the control device comprises:
[0024] an obtaining module for obtaining a current ambient temperature and a working state of the freezing fan;
[0025] a control module for controlling the heating member to heat when the ambient temperature is lower than a first preset temperature threshold and the working state of the freezing fan is stopped.
[0026] A refrigerator comprising:
[0027] a refrigerating chamber and a freezing chamber, the refrigerating chamber having a refrigerating return air inlet;
[0028] a freezing fan for providing cold air to the freezing chamber;
[0029] a heating member arranged around the refrigerating return air inlet;
[0030] a controller connected with the heating member for executing the control method of the refrigerator.
[0031] In some embodiments, the heating member is arranged around the refrigeration return air inlet.
[0032] In some embodiments, an outer wall of the heating member is provided with an insulation protective layer.
[0033] A storage medium having stored thereon a computer program which, when executed, performs the control method of a refrigerator as described above.
[0034] The control method of a refrigerator, the control device of a refrigerator, the refrigerator and the storage medium provided by the embodiments of the present application can avoid the excessive cold air from flowing into the refrigeration chamber, prevent the temperature of the bottom of the refrigeration chamber from being too low or icing, and ensure the good storage of food. BRIEF DESCRIPTION OF DRAWINGS
[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0036] In order to more completely understand the present application and its beneficial effects, the following will be described with reference to the drawings. In the following description, the same reference numerals represent the same parts.
[0037] Figure 1 The flow chart of the control method of a refrigerator provided by the embodiments of the present application.
[0038] Figure 2 Another flow chart of the control method of a refrigerator provided by the embodiments of the present application.
[0039] Figure 3 The structural schematic diagram of the control device of a refrigerator provided by the embodiments of the present application.
[0040] Figure 4 The structural schematic diagram of a refrigerator provided by the embodiments of the present application.
[0041] Figure 5 Another structural schematic diagram of a refrigerator provided by the embodiments of the present application. DETAILED DESCRIPTION
[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0043] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0044] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.
[0045] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values may in practice be based on additional conditions or values beyond those stated.
[0046] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.
[0047] The embodiments of the present application provide a control method of a refrigerator. The refrigerator can be a side-by-side refrigerator. For example, refer to Figure 1 , Figure 1 The embodiments of the present application provide a flow chart of the control method of the refrigerator. The refrigerator includes a refrigerating chamber, a freezing chamber, and a freezing fan for providing cold air to the freezing chamber. The refrigerating chamber has a refrigerating return air port, and a heating element is arranged around the refrigerating return air port. The control method includes the following steps S101-S102:
[0048] Step S101: obtaining a current ambient temperature and a working state of the freezing fan.
[0049] The ambient temperature is obtained by an ambient sensor, for example, a digital temperature and humidity sensor or a separate temperature sensor. The ambient sensor periodically collects data at a preset sampling frequency (for example, once per minute) or collects data in real time triggered by a control module.
[0050] The freezing fan has two working states: running and stopping running. The refrigerator determines the working state of the freezing fan by collecting the voltage of the power supply circuit of the freezing fan.
[0051] Step S102: controlling the heating element to heat when the ambient temperature is lower than a first preset temperature threshold and the running state of the freezing fan is stopping running. The first preset temperature threshold is, for example, 8℃.
[0052] It should be noted that when the refrigerator is in a refrigeration state, the compressor and the freezing fan of the refrigerator are controlled to be turned on. The freezing fan drives the cold air around the evaporator to enter the chamber to achieve refrigeration of the chamber. When the target chamber of the refrigerator reaches the set stop point temperature, the compressor and the freezing fan are controlled to stop to stop refrigeration of the chamber. The target chamber can be the refrigerating chamber or the freezing chamber.
[0053] In some embodiments, the refrigerator further includes a refrigerating damper and a compressor, and the refrigerating damper is arranged at a refrigerating air supply port between the refrigerating chamber and the freezing chamber. The control method further includes:
[0054] If it is determined that the freezing chamber has no refrigeration demand and the refrigerating chamber has refrigeration demand, the compressor is controlled to be turned off, and the refrigerating damper is controlled to be turned on. The cold energy of the freezing chamber is sucked into the refrigerating chamber from the refrigerating air supply port by the running freezing fan to refrigerate the refrigerating chamber.
[0055] If it is determined that the freezing chamber has refrigeration demand and the refrigerating chamber has no refrigeration demand, the compressor is controlled to be turned on, and the refrigerating damper is controlled to be turned off. The freezing chamber is refrigerated by the compressor, and the refrigerating damper is turned off to prevent the cold air of the freezing chamber from entering the refrigerating chamber.
[0056] If it is determined that the freezing chamber has a refrigeration demand and the refrigerating chamber has a refrigeration demand, the compressor is controlled to be turned on, and the refrigerating damper is controlled to be turned on, refrigeration is provided for the freezing chamber by the compressor, and the cold energy of the freezing chamber is sucked into the refrigerating chamber from the refrigerating chamber air supply port by the operation of the freezing fan, so that the refrigerating chamber is refrigerated.
[0057] If it is determined that the freezing chamber has no refrigeration demand and the refrigerating chamber has no refrigeration demand, the compressor is controlled to be turned off, and the refrigerating damper is controlled to be turned off. There is no forced refrigeration cycle in the refrigerator.
[0058] For example, when the freezing chamber reaches the start-up point temperature, the compressor and the freezing fan are controlled to be turned on, and when the freezing chamber reaches the shutdown point temperature, the compressor and the freezing fan are controlled to be turned off. The set start-up point temperature and the set shutdown point temperature of the freezing chamber can be set according to actual conditions, which are not specifically limited here. In order to make the control effect better, the set start-up point temperature and the set shutdown point temperature can also be set to have an adjustable range. Alternatively, the set start-up point temperature of the freezing chamber is -15°C, and the set shutdown point temperature is -24°C.
[0059] It can be understood that when the freezing fan stops running, the cold air in the freezing chamber will penetrate into the refrigerating chamber in the reverse direction through the refrigerating return air port driven by the air pressure difference. Since the heating member can heat the air around the refrigerating return air port, the cold air in the freezing chamber will be heated near the refrigerating return air port and then enter the refrigerating chamber. In this way, it can be avoided that excessive cold air flows into the refrigerating chamber, causing the bottom temperature to be too low or freezing.
[0060] The control method of the refrigerator provided in the embodiments of the present application can heat the cold air in the freezing chamber near the refrigerating return air port when the freezing fan stops running, so that the cold air in the freezing chamber is heated and then enters the refrigerating chamber. This can avoid excessive cold air flowing into the refrigerating chamber, prevent the bottom temperature of the refrigerating chamber from being too low or freezing, and ensure good storage of food.
[0061] In some embodiments, please refer to Figure 2 , Figure 2 Another flowchart of the control method of the refrigerator provided in the embodiments of the present application is shown in FIG. 4. After the heating member is controlled to be turned on and heated, the control method of the refrigerator further includes:
[0062] obtaining a first temperature of the refrigerating chamber and a working state of the freezing fan;
[0063] If the first temperature exceeds a second preset temperature threshold or the freezing fan starts running, the heating member is controlled to stop heating.
[0064] The temperature of the refrigeration chamber exceeding a second preset temperature threshold indicates that the current temperature of the refrigeration chamber is in a higher state, and the probability of overcooling or icing is small, and the heating by the heating element does not need to continue. The first temperature is obtained by a temperature sensor arranged in the refrigeration chamber, preferably, the refrigeration return air inlet is arranged at the bottom of the refrigeration chamber, and correspondingly, the temperature sensor is arranged at the bottom of the refrigeration chamber. In this way, the temperature at the bottom of the refrigeration chamber can be accurately detected, and whether the overcooling condition at the bottom of the refrigeration chamber exists can be accurately determined. The second preset temperature threshold is, for example, 4°C.
[0065] In addition, after the freezing fan starts to operate, the internal air circulation of the refrigeration chamber will return to normal, and the probability of overcooling and icing at the bottom is small. At this time, by controlling the heating element to stop heating, the influence on the refrigeration effect can be avoided, and the power consumption of the refrigerator can be improved.
[0066] Optionally, the refrigerator system is provided with an overheating protection function. When it is detected that the temperature of the heating element exceeds a safety threshold, the power supply of the heating element is controlled to be cut off to ensure the safety of operation.
[0067] After the heating element is turned on, it may need to undergo a period of time for temperature rise to reach a certain temperature to achieve the heating effect on the surrounding air. To ensure that the heating element can effectively heat and warm the cold air flowing through the refrigeration return air inlet after the freezing fan is stopped, the heating element can be turned on in advance for preheating before the freezing fan is stopped. For example, before the heating element is controlled to heat, the control method can further include:
[0068] obtaining current temperature information of the refrigerator;
[0069] determining the stopping time of the freezing fan according to the current temperature information;
[0070] determining the starting time of the heating element according to the stopping time, the starting time being before the stopping time;
[0071] controlling the heating element to start at the starting time for preheating.
[0072] The current temperature information can include the current temperature of the refrigeration chamber and / or the freezing chamber. Specifically, the content of the current temperature information can be determined according to the actual control logic of the opening and stopping of the refrigeration system of the refrigerator.
[0073] For example, the current temperature information is the current temperature of the freezing chamber, and the refrigeration system of the refrigerator is adapted to be opened or closed according to the comparison relationship between the current temperature of the freezing chamber and the opening and stopping point temperature. That is, when the freezing chamber reaches the set opening point temperature, the refrigerator controls the refrigeration system to be opened; when the freezing chamber reaches the set stopping point temperature, the refrigerator controls the refrigeration system to be stopped. By using a prediction method, the time when the freezing chamber reaches the stopping point temperature can be determined according to the current temperature of the freezing chamber.
[0074] Optionally, determining the shutdown time of the freezing fan according to the current temperature information comprises:
[0075] inputting the current temperature information into a time prediction model to output a first target time for the refrigerator to reach a shutdown point temperature;
[0076] determining the shutdown time according to the first target time.
[0077] The time prediction model can be trained according to temperature data in a historical refrigeration process of the refrigerator based on a machine learning algorithm. For example, the time prediction model is trained according to temperature data in a recent first preset time length, for example, 1 hour. In the first preset time length, the temperature data of the refrigerator is obtained, for example, every 10 seconds.
[0078] Optionally, determining the shutdown time according to the first target time comprises:
[0079] obtaining heat load information of the current refrigerator;
[0080] correcting the first target time according to the heat load information to obtain the shutdown time.
[0081] The heat load information can be determined according to the current load state, the ambient temperature and the door opening times of the refrigerator. If it is determined that the current refrigerator is in a high heat load state, the first target time can be delayed to obtain the shutdown time; if it is determined that the current refrigerator is in a low heat load state, the first target time can be advanced to obtain the shutdown time. Optionally, the delay length of the first target time is proportional to the degree of high heat load.
[0082] In some embodiments, determining the opening time of the heating element according to the shutdown time can comprise:
[0083] obtaining a second target time in a second preset time length before the shutdown time;
[0084] determining the second target time as the opening time of the heating element.
[0085] The second preset time length can be determined according to the actual preheating time required by the heating element.
[0086] The control method of the refrigerator provided in the embodiments of the present application can heat the heating element when the freezing fan stops running, so that the cold air in the freezing chamber is heated near the refrigeration air return port and then enters the refrigeration chamber, which can avoid excessive cold air from flowing into the refrigeration chamber and prevent the temperature at the bottom of the refrigeration chamber from being too low or freezing, thereby ensuring good storage of food.
[0087] The embodiments of the present application also provide a control device of a refrigerator. For example, refer to Figure 3, Figure 3 This is a schematic diagram of the control device for a refrigerator provided in an embodiment of this application. The refrigerator includes a refrigerator compartment, a freezer compartment, and a refrigeration fan. The refrigeration fan is used to supply cold air to the freezer compartment. The refrigerator compartment has a refrigerator return air vent, and heating elements are arranged around the refrigerator return air vent. The control device 300 includes an acquisition module 310 and a control module 320.
[0088] The acquisition module 310 is used to acquire the current ambient temperature and the working status of the refrigeration fan; the control module 320 is used to control the heating element to heat when the ambient temperature is lower than the first preset temperature threshold and the refrigeration fan is in the stopped running state.
[0089] The refrigerator control device 300 provided in this application embodiment heats the refrigerator by controlling the heating element when the refrigeration fan stops running. This heats the cold air in the freezer compartment near the refrigerator return air vent before it enters the refrigerator compartment, thus preventing excessive cold air from entering the refrigerator compartment, preventing the bottom temperature of the refrigerator compartment from becoming too low or freezing, and ensuring good food storage.
[0090] This application also provides a refrigerator, for example, please refer to [link to example]. Figures 4-5 , Figure 4 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this application. Figure 5 This is another structural schematic diagram of a refrigerator provided in an embodiment of this application. The refrigerator can be as follows: Figure 4 The side-by-side refrigerator shown can also be other types of refrigerators. Refrigerator 400 includes a refrigerator compartment 410, a freezer compartment 420, a refrigeration fan 430, a heating element 440, and a controller 450.
[0091] The refrigerator compartment 410 has a refrigerator return air vent 411; a refrigeration fan 430 is installed in the freezer compartment 420 to drive cold air into the freezer compartment 420; a heating element 440 is installed around the refrigerator return air vent 411; a controller 450 is connected to the heating element 440 and is used to: obtain the current ambient temperature and the working status of the refrigeration fan 430; and control the heating element 440 to heat when the ambient temperature is lower than a first preset temperature threshold and the refrigeration fan 430 is in the stopped running state.
[0092] Preferably, the heating element 440 is arranged around the refrigeration return air vent 411. This helps to enhance the heating effect of the heating element 440. The heating element 440 can be a heating wire, a flexible electric heating film, an electric heating tube, or other types of heating devices.
[0093] Preferably, the outer wall of the heating element 440 is provided with an insulation protective layer. The insulation protective layer is wrapped on the outside of the heating element, for example, to prevent moisture or condensed water from damaging the heating element. The insulation protective layer is made of an insulating high-temperature-resistant material, such as high-temperature-resistant plastic, ceramic, nano coating, etc.
[0094] The refrigerator 400 provided by the embodiments of the present application can avoid the excessive cold air from flowing into the refrigerating chamber 410, prevent the temperature at the bottom of the refrigerating chamber 410 from being too low or icing, and ensure good storage of food, by controlling the heating element 440 to heat when the freezing fan 430 stops running, so that the cold air in the freezing chamber 420 is heated near the refrigerating air return port 411 and then enters the refrigerating chamber 410.
[0095] The embodiments of the present application also provide a storage medium, which stores a computer program. The computer program performs the control method of the refrigerator when running. The integrated modules / units, if realized in the form of software function units and sold or used as independent products, can be stored in a computer readable storage medium. Based on this understanding, the embodiments of the present application can also complete the above-mentioned processes by instructing the relevant hardware through the computer program, and the computer program can be stored in the computer readable storage medium. When the processor executes the computer program, the steps of the above-mentioned control method of the refrigerator can be realized.
[0096] The control method and device of the refrigerator, the refrigerator and the storage medium provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, the specific implementation manners and application ranges can be changed according to the idea of the present application. In conclusion, the content of the specification should not be understood as a limitation of the present application.
Claims
1. A method for controlling a refrigerator, characterized in that, The refrigerator includes a refrigerator compartment, a freezer compartment, and a refrigeration fan. The refrigeration fan supplies cold air to the freezer compartment. The refrigerator compartment has a refrigerator return air vent, and heating elements are arranged around the refrigerator return air vent. The control method includes: Obtain the current ambient temperature and the operating status of the refrigeration fan; When the ambient temperature is lower than the first preset temperature threshold and the refrigeration fan is in a stopped operating state, the heating element is controlled to heat.
2. The refrigerator control method according to claim 1, characterized in that, After controlling the heating element to turn on heating, the system also includes: Obtain the first temperature of the refrigerator compartment and the operating status of the refrigeration fan; If the first temperature exceeds the second preset temperature threshold or the refrigeration fan starts running, the heating element is controlled to stop heating.
3. The refrigerator control method according to claim 1 or 2, characterized in that, Before controlling the heating element to heat, the control method further includes: Obtain the current temperature information of the refrigerator; The shutdown time of the refrigeration fan is determined based on the current temperature information; The start-up time of the heating element is determined based on the downtime, and the start-up time is before the downtime; The heating element is activated at the specified start time to preheat.
4. The refrigerator control method according to claim 3, characterized in that, Determining the shutdown time of the refrigeration fan based on the current temperature information includes: The current temperature information is input into the time prediction model to output the first target time for the refrigerator to reach the shutdown point temperature; The downtime is determined based on the first target time.
5. The refrigerator control method according to claim 4, characterized in that, Determining the downtime based on the first target time includes: Obtain the current heat load information of the refrigerator; The first target time is corrected based on the heat load information to obtain the downtime.
6. A control device for a refrigerator, characterized in that, The refrigerator includes a refrigerator compartment, a freezer compartment, and a refrigeration fan. The refrigeration fan supplies cold air to the freezer compartment. The refrigerator compartment has a refrigerator return air vent, and heating elements are arranged around the refrigerator return air vent. The control device includes: The acquisition module is used to acquire the current ambient temperature and the operating status of the refrigeration fan; The control module is used to control the heating element to heat when the ambient temperature is lower than a first preset temperature threshold and the refrigeration fan is in a stopped operating state.
7. A refrigerator, characterized in that, include: A refrigerator compartment and a freezer compartment, wherein the refrigerator compartment has a refrigerator return air vent; A refrigeration fan is used to supply cold air to the refrigeration chamber; Heating elements are disposed around the refrigeration return air vent; A controller, connected to the heating element, is used to perform the refrigerator control method as described in any one of claims 1-5.
8. The refrigerator according to claim 7, characterized in that, The heating element is arranged around the refrigeration return air vent.
9. The refrigerator according to claim 7 or 8, characterized in that, The outer wall of the heating element is provided with an insulating protective layer.
10. A storage medium having a computer program stored thereon, characterized in that, When the computer program is run, it executes the refrigerator control method as described in any one of claims 1-5.