Dual-system refrigerator, moisturizing control method and device for refrigerating chamber of dual-system refrigerator and medium

Abstract

The invention provides a dual-system refrigerator, a refrigerating chamber moisturizing control method and device and a storage medium, and the refrigerating chamber moisturizing control method is used for the dual-system refrigerator. Comprising the steps that the refrigerating temperature of a refrigerating chamber and the freezing temperature of a freezing chamber are obtained; and when the refrigerating temperature and the freezing temperature are both lower than a first preset temperature, the dual-system refrigerator is controlled to enter a refrigerating chamber moisturizing mode to operate. The invention aims to solve the problems that in the prior art, when a dual-system refrigerator enters a refrigerating chamber moisturizing mode to operate, the temperature of a freezing chamber is not considered, so that the freezing chamber is prone to being in a long-time temperature pulling process, and the moisturizing effect of the refrigerating chamber and the food preservation effect are affected.

Description

Technical Field

[0001] The present application relates to the technical field of humidity regulation of refrigeration equipment, and in particular to a method, device and medium for controlling the moisture retention of a dual-system refrigerator and a refrigerator compartment thereof. Background Art

[0002] A dual-system refrigerator is a refrigerator with a freezing evaporator and a refrigerating evaporator. Compared with a single-system refrigerator, a dual-system refrigerator has an additional evaporator; it uses a compressor to provide cooling to the freezing evaporator and the refrigerating evaporator simultaneously or separately to avoid odor contamination. Moisture retention is an important part of refrigerator preservation, and maintaining high moisture retention in the refrigerator compartment is an important research topic in this field.

[0003] In the prior art, when a dual-system refrigerator enters the refrigerator compartment moisturizing mode, the temperature of the freezer compartment is not taken into consideration, which causes the freezer compartment to be in a long-term temperature-pulling process, affecting the moisturizing effect of the refrigerator compartment and the food preservation effect in the freezer compartment. Summary of the invention

[0004] The present application provides a dual-system refrigerator and a moisturizing control method, device and medium for the refrigerator compartment thereof, aiming to solve the problem in the prior art that when the dual-system refrigerator enters the refrigerator compartment moisturizing mode, the temperature of the freezer compartment is not taken into account, which causes the freezer compartment to be in a long-term temperature-pulling process, affecting the moisturizing effect of the refrigerator compartment and the food preservation effect.

[0005] In a first aspect, the present application proposes a method for controlling the moisture retention of a refrigerator compartment, which is used in a dual-system refrigerator; the method comprises:

[0006] Get the refrigerating temperature of the refrigerator and the freezing temperature of the freezer;

[0007] When the refrigeration temperature and the freezing temperature are both lower than a first preset temperature, the dual-system refrigerator is controlled to enter a refrigeration chamber moisturizing mode.

[0008] Optionally, when controlling the dual-system refrigerator to enter the refrigerator compartment moisturizing mode, if the refrigeration temperature is lower than the shutdown point temperature, the solenoid valve is controlled to be in a first state and the refrigeration fan is controlled to run at a first speed; in the first state, the compressor only supplies cold air to the freezing evaporator.

[0009] Optionally, when the dual-system refrigerator is controlled to enter the refrigerating chamber moisturizing mode, if the refrigerating temperature is higher than the start-up point temperature, the refrigerating fan is controlled to operate at a first speed, the compressor is controlled to operate at a second speed, and the solenoid valve is controlled to be in a second state until the refrigerating temperature is lower than the stop-point temperature; in the second state, the compressor supplies cold air to the refrigerating evaporator and the freezing evaporator;

[0010] Wherein, the power-on point temperature is lower than the first preset temperature.

[0011] Optionally, when the solenoid valve is controlled to be in a first state and the refrigeration fan is controlled to run at a first speed, a defrosting temperature for indicating defrosting of the refrigeration evaporator is obtained;

[0012] If the defrost temperature is higher than the third preset temperature, controlling the speed of the refrigeration fan to decrease from the first speed to the third speed until the defrost temperature is higher than the fourth preset temperature;

[0013] If the defrost temperature is higher than the fourth preset temperature, the rotation speed of the refrigeration fan is controlled to decrease from the third rotation speed to 0 until the refrigeration temperature is higher than the start-up point temperature.

[0014] Optionally, when the refrigeration temperature or the freezing temperature is higher than a first preset temperature, the dual-system refrigerator is controlled to enter a normal mode of operation until both the refrigeration temperature and the freezing temperature are lower than the first preset temperature;

[0015] The rotation speed of the compressor in the normal mode is higher than the second rotation speed, and the rotation speed of the refrigeration fan in the normal mode is lower than the first rotation speed.

[0016] Optionally, the control method further includes:

[0017] Get the ambient temperature;

[0018] According to the ambient temperature, the rotation speed of the compressor in the normal mode and the second rotation speed and the rotation speed of the refrigeration fan in the normal mode are determined.

[0019] Optionally, the first preset temperature is greater than the power-on point temperature of the dual-system refrigerator, and the difference between the first preset temperature and the power-on point temperature is in the range of greater than 0°C and less than or equal to 2°C.

[0020] In a second aspect, the present application further proposes a moisture retention control device for a refrigerated chamber, comprising:

[0021] An acquisition module, used for acquiring the refrigerating temperature of the refrigerating chamber and the freezing temperature of the freezing chamber;

[0022] The control module is used to control the dual-system refrigerator to enter a refrigeration chamber moisturizing mode when the refrigeration temperature and the freezing temperature are both lower than a first preset temperature.

[0023] In a third aspect, the present application further proposes a dual-system refrigerator, comprising a controller, wherein the controller is configured to execute the steps in the aforementioned method for controlling the moisturizing of a refrigerating chamber.

[0024] In a fourth aspect, the present application further proposes a computer-readable storage medium having a computer program stored thereon, wherein the computer program is loaded by a processor to execute the steps in the aforementioned method for controlling moisturizing of a cold storage room.

[0025] In the technical solution of the embodiment of the present application, when the refrigeration temperature of the refrigerating chamber and the freezing temperature of the freezing chamber are both lower than the first preset temperature, the refrigeration temperature in the refrigerating chamber and the freezing temperature in the freezing chamber reach a nearly balanced operating state, and the refrigeration temperature in the refrigerating chamber and the freezing temperature in the freezing chamber are no longer in the stage where rapid warming is required. At this time, the dual-system refrigerator is controlled to enter the refrigerating chamber moisturizing mode to reduce the impact of the refrigerating chamber on the freezing temperature in the freezer due to the need for moisturizing, thereby improving the moisturizing effect of the refrigerating chamber and the food preservation effect of the freezer. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 is a schematic diagram of a refrigerant circulation system of a dual-system refrigerator provided in an embodiment of the present application;

[0028] Figure 2 It is a schematic flow chart of an embodiment of a method for controlling the moisture retention of a refrigerating chamber provided in an embodiment of the present application;

[0029] Figure 3 It is a schematic diagram of a flow chart of the moisturizing control method for a refrigerating chamber provided in an embodiment of the present application when the method is operated in a moisturizing mode;

[0030] Figure 4 is a schematic flow chart of another embodiment of the method for controlling the moisturizing of a cold storage room provided in an embodiment of the present application;

[0031] Figure 5 It is a schematic flow chart of another embodiment of the method for controlling the moisture retention of a refrigerating chamber provided in the embodiments of the present application;

[0032] Figure 6 It is a schematic structural diagram of an embodiment of a moisturizing control device for a cold storage room provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, 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 invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. 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 features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0035] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or illustration." 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 person skilled in the art to implement and use the invention. 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 invention can be implemented without using these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of the invention with unnecessary details. Therefore, the present invention 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 this application.

[0036] In the prior art, refrigeration and moisturizing mainly refers to controlling the defrosting process of the evaporator. In a dual-system refrigerator, refrigeration and moisturizing mainly refers to controlling the defrosting process of the refrigeration evaporator, that is, controlling the surface temperature of the evaporator; for example, when the refrigeration temperature reaches the start-up point temperature, the refrigeration fan is turned on, but the refrigeration system is not turned on. When the temperature of the refrigeration defrost sensor reaches a certain set defrost exit temperature, the refrigeration system is turned on, that is, before each refrigeration starts, the evaporator is first returned to defrost; or when the refrigeration sensor reaches the shutdown point temperature, the refrigeration system is turned off, but the refrigeration fan is not turned off. When the temperature of the refrigeration defrost sensor reaches a certain set defrost exit temperature, the refrigeration fan is turned off, that is, after each refrigeration is completed, the evaporator is returned to defrost. In a dual-system refrigerator, since the refrigerant is provided between the refrigeration evaporator and the freezing evaporator by the same compressor, when the surface temperature of the refrigeration evaporator changes, it is bound to affect the temperature of the refrigerant in the freezing evaporator; however, in the prior art, when the dual-system refrigerator enters the refrigerator compartment moisturizing mode, the temperature of the freezer compartment is not taken into account, which causes the freezer compartment to be in a long-term temperature-pulling process, affecting the moisturizing effect of the refrigerator compartment and the food preservation effect.

[0037] To this end, the embodiments of the present application provide a dual-system refrigerator and a moisturizing control method, device and medium for a refrigerator compartment thereof.

[0038] The dual-system refrigerator includes a refrigerating chamber, a freezing chamber, a refrigerating evaporator, a freezing evaporator, a refrigerating fan, a freezing fan, and a compressor. The compressor is used to provide refrigerant to the refrigerating evaporator and the freezing evaporator; the refrigerating fan is configured to send air into the refrigerating chamber after heat exchange with the refrigerating evaporator; the freezing fan is configured to send air into the freezing chamber after heat exchange with the freezing evaporator. The dual-system refrigerator also includes a solenoid valve, which is used to change the flow of refrigerant in the refrigerating evaporator and the freezing evaporator. The dual-system refrigerator also includes a refrigerating sensor, a freezing sensor, and a refrigerating defrosting sensor. The refrigerating sensor is used to collect the refrigerating temperature in the refrigerating chamber; the freezing sensor is used to collect the freezing temperature in the freezing chamber; and the refrigerating defrosting sensor is used to collect the defrosting temperature indicating the defrosting of the refrigerating extender. The dual-system refrigerator also includes a controller, which is connected to the refrigeration sensor, the freezing sensor and the refrigeration defrosting sensor signals to obtain the refrigeration temperature, the freezing temperature and the defrosting temperature; the controller is also connected to the solenoid valve, the refrigeration fan, the freezing fan and the compressor signals to control the operation status of the solenoid valve, the refrigeration fan, the freezing fan and the compressor. The controller is configured to execute the moisturizing control method for the refrigeration chamber provided in the embodiment of the present application.

[0039] like Figure 1A refrigerant circulation system of a dual-system refrigerator is illustrated. The refrigerant circulation system includes a refrigerating evaporator 7, a freezing evaporator 8, a compressor 1, a condenser 2, a first capillary tube 6, a second capillary tube 5 and a solenoid valve 4. The outlet of the compressor 1 is connected to the inlet of the condenser 2, and the outlet of the condenser 2 is connected to the inlet of the solenoid valve 4. The solenoid valve 4 has a first outlet and a second outlet. The first outlet is connected to the refrigerating evaporator 7 and the freezing evaporator 8 in sequence through the first capillary tube 6. The second outlet is connected to the freezing evaporator 8 through the second capillary tube 5. The outlet of the freezing evaporator 8 is connected to the inlet of the compressor 1.

[0040] The solenoid valve has a first state and a second state. When the solenoid valve is in the first state, the inlet of the solenoid valve is connected to the second outlet, that is, the refrigerant passes through the solenoid valve, the second capillary tube and the refrigeration evaporator, and the compressor only supplies cold to the refrigeration evaporator. When the solenoid valve is in the second state, the inlet of the solenoid valve is connected to the first outlet, that is, the refrigerant passes through the solenoid valve, the first capillary tube, the refrigeration evaporator and the refrigeration evaporator, and the compressor supplies cold to the refrigeration evaporator and the refrigeration evaporator.

[0041] In some embodiments, a drying filter 3 is further provided between the condenser and the solenoid valve.

[0042] Based on the introduction of the dual-system refrigerator in the above embodiment, the present application provides a method for controlling the moisture retention of the refrigerating chamber of the dual-system refrigerator. Figure 2 As shown, it is a schematic flow chart of an embodiment of a method for controlling the moisturizing of a refrigerating chamber in an embodiment of the present application, and the method for controlling the moisturizing of a refrigerating chamber includes:

[0043] S100, obtaining a refrigerating temperature of a refrigerating chamber and a freezing temperature of a freezing chamber;

[0044] S300, when the refrigeration temperature and the freezing temperature are both lower than a first preset temperature, controlling the dual-system refrigerator to enter a refrigeration chamber moisturizing mode.

[0045] In the technical solution of the embodiment of the present application, when the refrigeration temperature of the refrigerating chamber and the freezing temperature of the freezing chamber are both lower than the first preset temperature, the refrigeration temperature in the refrigerating chamber and the freezing temperature in the freezing chamber reach a nearly balanced operating state, and the refrigeration temperature in the refrigerating chamber and the freezing temperature in the freezing chamber are no longer in the stage where rapid warming is required. At this time, the dual-system refrigerator is controlled to enter the refrigerating chamber moisturizing mode to reduce the impact of the refrigerating chamber on the freezing temperature in the freezer due to the need for moisturizing, thereby improving the moisturizing effect of the refrigerating chamber and the food preservation effect of the freezer.

[0046] In some embodiments, when the user selects the dual-system refrigerator to operate in the refrigerator compartment moisturizing mode, the dual-system refrigerator starts to execute the moisturizing control method. In some other embodiments, the dual-system refrigerator may also be set by default that its operating mode can be intelligently switched between the refrigerator compartment moisturizing mode and other operating modes. When the refrigeration temperature and the freezing temperature are both lower than the first preset temperature, the dual-system refrigerator is controlled to automatically enter the refrigerator compartment moisturizing mode; when the refrigeration temperature or the freezing temperature is not lower than the first preset temperature, the dual-system refrigerator is controlled to automatically enter other modes.

[0047] As an optional implementation of the above embodiment, the first preset temperature is greater than the power-on point temperature of the dual-system refrigerator, and the difference between the first preset temperature and the power-on point temperature is in the range of greater than 0°C and less than or equal to 2°C. That is, the first preset temperature is equal to the sum of the power-on point temperature and the difference; that is, the first preset temperature is greater than the power-on point temperature by 0-2°C. For example, when the difference is 1°C, when the refrigeration temperature and the freezing temperature are both lower than the power-on point temperature + 1°C, the refrigeration temperature in the refrigeration chamber and the freezing temperature in the freezing chamber are no longer at a stage where rapid temperature increase is required; at this time, the dual-system refrigerator can be controlled to enter the refrigeration chamber moisturizing mode. When the refrigeration chamber is moisturizing, the freezer and refrigeration chamber continue to be refrigerated, which is beneficial to improving the moisturizing effect of the refrigeration chamber and the food preservation effect of the freezer.

[0048] As an optional implementation of the above embodiment, Figure 3 As shown, when the dual-system refrigerator is controlled to enter the refrigerator compartment moisturizing mode, if the refrigeration temperature is lower than the shutdown point temperature, step S302 is executed: the solenoid valve is controlled to be in a first state and the refrigeration fan is controlled to run at a first speed; in the first state, the compressor only supplies cold air to the freezing evaporator.

[0049] In this embodiment, when the refrigerator compartment moisturizing mode is in operation, the refrigerator compartment and the freezer compartment continue to refrigerate; when the refrigeration temperature of the refrigerator compartment is lower than the shutdown point temperature, the solenoid valve is controlled to be in the first state and the refrigeration fan is controlled to operate at the first speed. At this time, the compressor only supplies cold air to the freezing evaporator without affecting the refrigeration demand of the freezer compartment, and the refrigeration fan operates at the first speed. While providing cold air to the refrigerator compartment, the surface temperature of the evaporator in the refrigerator compartment continues to rise and defrosts due to the continuous increase in the return air temperature, so that the humidity in the refrigerator compartment can be maintained.

[0050] As an optional implementation of the above embodiment, Figure 3As shown, when the dual-system refrigerator is controlled to enter the refrigerating chamber moisturizing mode, if the refrigerating temperature is higher than the start-up point temperature, step S301 is executed: the refrigerating fan is controlled to run at a first speed, the compressor is controlled to run at a second speed, and the solenoid valve is controlled to be in a second state until the refrigerating temperature is lower than the stop-point temperature; in the second state, the compressor supplies cold to the refrigerating evaporator and the freezing evaporator;

[0051] Wherein, the power-on point temperature is lower than the first preset temperature.

[0052] In an embodiment, when the dual-system refrigerator enters the refrigerator compartment moisturizing mode, the temperature in the refrigerator compartment may be higher than the start-up point temperature due to the fact that the compressor does not provide cooling capacity or provides less cooling capacity, and the refrigeration fan runs at a low speed or stops running. At this time, the refrigerator compartment needs cooling capacity, and the refrigeration fan is controlled to run at a first speed, and the compressor runs at a second speed. The solenoid valve is in the second state and supplies cooling to the refrigeration evaporator. At this time, when the refrigerator compartment is operating in the moisturizing mode, the temperature in the refrigerator compartment can be reduced without stopping the supply of cooling to the freezer compartment.

[0053] As an optional implementation of the above embodiment, Figure 3 As shown, when the solenoid valve is controlled to be in a first state and the refrigeration fan is controlled to run at a first speed, a defrosting temperature for indicating defrosting of the refrigeration evaporator is obtained;

[0054] If the defrost temperature is higher than the third preset temperature, executing step S303: controlling the speed of the refrigeration fan to decrease from the first speed to the third speed until the defrost temperature is higher than the fourth preset temperature;

[0055] If the defrost temperature is higher than the fourth preset temperature, step S304 is executed: controlling the rotation speed of the refrigeration fan to decrease from the third rotation speed to 0 until the refrigeration temperature is higher than the start-up point temperature.

[0056] In an embodiment, when the compressor only supplies cold air to the freezing evaporator and the refrigeration fan runs at the first speed, the frost layer of the refrigeration evaporator is reduced and the surface temperature rises. The refrigeration fan drives water vapor into the refrigeration room, so that the humidity of the refrigeration room quickly rises to the maximum humidity, which can reduce the duration of the refrigeration room in low humidity; keep the refrigeration room in a high humidity environment; in this process, since the refrigerant does not pass through the refrigeration evaporator, the surface temperature of the refrigeration evaporator rises, and the defrosting temperature rises. When the defrosting temperature is higher than the third preset temperature, the speed of the refrigeration fan is controlled to drop from the first speed to the third speed, which reduces the speed of the refrigeration room temperature rising and increases the time the refrigeration room is in a high humidity environment. Until the defrosting temperature is higher than the fourth preset temperature, the evaporator surface temperature is difficult to maintain the low temperature environment in the refrigeration room. At this time, the air flow is reduced, and the speed of the refrigeration room temperature rising is further reduced. The time the refrigeration room is in a high humidity environment increases until the refrigeration temperature is higher than the start-up point temperature.

[0057] For example, the third preset temperature is -1 to 0°C, and the fourth preset temperature is 3-5°C.

[0058] In the embodiment, when the refrigeration temperature is lower than the shutdown point temperature, the defrosting and moisturizing stage begins. During the defrosting process with returning air, the defrosting temperature is detected. When the defrosting temperature does not reach 0°C, the rotation speed of the refrigeration fan is higher to maintain the temperature in the refrigeration room and increase the humidity in the refrigeration room. When the defrost temperature reaches 0°C, the rotation speed control of the refrigeration fan is subdivided into two sections. The rotation speed of the refrigeration fan is reduced first, which can also promote the melting of frost and slow down the temperature recovery speed, so that the humidity in the refrigeration room quickly returns to the maximum humidity, which can reduce the refrigeration room in The duration of low humidity; however, if this speed is maintained, the temperature of the refrigerator compartment will rise back to the start-up point faster, and the downtime of the refrigerator compartment will be significantly shortened, that is, the duration of the refrigerator compartment maintaining high humidity and low temperature will be shortened. Therefore, after being subdivided into two sections, when the defrost temperature reaches 4°C, the refrigeration fan stops to further slow down the temperature recovery time and prolong the high humidity time in the refrigerator compartment. Compared with the general return air defrost logic, it not only shortens the time at low humidity, but also prolongs the time at high humidity, thus obtaining a higher relative average humidity. The measured humidity of the return air defrost logic in the prior art is 80%, and the relative average humidity can reach 90% by using the technical solution of this application; and in the whole process, cold capacity can be provided to the freezer compartment, reducing the impact of the refrigerator compartment's need for moisturizing on the freezing temperature in the freezer compartment, and improving the moisturizing effect of the refrigerator compartment and the food preservation effect in the freezer compartment.

[0059] In addition, in the embodiment, after the dual-system refrigerator enters the refrigerator compartment moisturizing mode, when the refrigeration temperature rises back to a temperature greater than the power-on point temperature, step S301 is executed, so the refrigeration temperature begins to drop and will not rise back to above the first preset temperature again; and the freezer compartment is always in a state of cold supply, and the freezing temperature will not rise back to above the first preset temperature; therefore, the dual-system refrigerator can always be in the refrigerator compartment moisturizing mode cycle operation, which improves the preservation effect and helps save electricity.

[0060] As an optional implementation of the above embodiment, Figure 4 As shown, when the refrigeration temperature or the freezing temperature is higher than the first preset temperature, step S200 is executed to control the dual-system refrigerator to enter normal mode operation until the refrigeration temperature and the freezing temperature are both lower than the first preset temperature; the speed of the compressor in the normal mode is higher than the second speed, and the speed of the refrigeration fan in the normal mode is lower than the first speed.

[0061] That is, in the embodiment, when the refrigeration temperature or the freezing temperature is higher than the first preset temperature, the dual-system refrigerator is operated in normal mode. At this time, the cooling capacity provided by the compressor needs to reduce the refrigeration temperature and the freezing temperature to below the first preset temperature, and then the dual-system refrigerator will be controlled to enter the refrigeration room moisturizing mode. That is, at this time, the solenoid valve is in the second state, and the compressor supplies cold to the refrigeration evaporator and the freezing evaporator. In the embodiment, when the dual-system refrigerator is operated in normal mode and the refrigeration room moisturizing mode, if the refrigeration room needs to be cooled, the compressor supplies cold to the refrigeration evaporator and the freezing evaporator, and the refrigeration fan is turned on; however, the speed of the compressor in the normal mode is higher than the second speed, and the speed of the refrigeration fan in the normal mode is lower than the first speed; its purpose is to make the evaporation temperature of the refrigeration evaporator higher when the refrigeration room moisturizing mode is operated, so as to reduce the frosting of the evaporator, that is, to reduce the humidity loss of the refrigeration room, and to increase the minimum humidity of the compartment, and it will not be in a long-term temperature-pulling process, so as to prevent the food from being too high for a long time and failing to reach the target storage temperature.

[0062] It is understandable that in normal mode and when the refrigerator compartment moisturizing mode is running and before the refrigeration temperature reaches the shutdown point temperature, the freezer and refrigerator compartment of the dual-system refrigerator are both cooling down; in normal mode, the compressor speed is higher and the fan speed is lower; when the refrigerator compartment mode is running and before the refrigeration temperature reaches the shutdown point temperature, the compressor speed becomes lower and the fan speed becomes higher.

[0063] like Figure 5An example of the control method in the control process of switching from normal mode to refrigerator moisturizing mode is provided. In normal mode, the compressor runs at the fifth speed and the refrigeration fan runs at the sixth speed until the refrigeration temperature and the freezing temperature are both lower than the first preset temperature, at which time the compressor switches from normal mode to the refrigeration moisturizing mode. In an embodiment, when the compressor switches from normal mode to the refrigeration moisturizing mode, the refrigeration temperature is generally greater than the shutdown point temperature, and at this time the solenoid valve is controlled to be in the second state. Alternatively, by judging whether the refrigeration temperature is less than the shutdown point temperature, if not, the refrigeration fan is controlled to run at the first speed, the compressor is controlled to run at the second speed, and the solenoid valve is controlled to be in the second state; the first speed is greater than the sixth speed, and the fifth speed is greater than the second speed.

[0064] During the operation of the refrigeration chamber moisturizing mode, if the refrigeration temperature is greater than the shutdown point temperature, the solenoid valve is controlled to be in the first state and the refrigeration fan is controlled to run at the first speed, and it is determined whether the defrost temperature is higher than the third preset temperature; if so, the speed of the refrigeration fan is controlled to drop from the first speed to the third speed, and it is determined whether the defrost temperature is higher than the fourth preset temperature. If so, the speed of the refrigeration fan is controlled to drop from the third speed to 0, and it is determined whether the refrigeration temperature is higher than the shutdown point temperature. If so, the refrigeration fan is controlled to run at the first speed, the compressor is controlled to run at the second speed, and the solenoid valve is controlled to be in the second state; this cycle is executed so that the refrigeration chamber is under high moisturizing and the impact on the freezing temperature in the freezer chamber is reduced.

[0065] In the above embodiments, the control method first ensures that the refrigeration temperature and the freezing temperature are relatively close and in a balanced state, and then the controller enters the refrigeration room moisturizing mode. When the refrigeration room moisturizing mode is running and the refrigeration room needs to be refrigerated at the same time, it starts to enter the refrigeration moisturizing stage, and then the compressor is operated at a low speed, and the refrigeration fan is operated at a high speed. The purpose is to make the evaporation temperature of the refrigeration evaporator higher to reduce the frosting of the evaporator, that is, to reduce the humidity loss of the refrigeration room, increase the minimum humidity of the compartment, and will not be in a long-term temperature-pulling process to prevent the food temperature from being too high for a long time and failing to reach the target storage temperature.

[0066] As an optional implementation of the above embodiment, the control method further includes:

[0067] Get the ambient temperature;

[0068] According to the ambient temperature, the rotation speed of the compressor in the normal mode and the second rotation speed and the rotation speed of the refrigeration fan in the normal mode are determined.

[0069] In an embodiment, the ambient temperature has a significant impact on the refrigeration effect of the refrigerator. Therefore, in an embodiment, the operating speed of the compressor and the speed of the refrigeration fan in the normal mode are determined by the ambient temperature, so as to improve the refrigeration effect of the dual-system refrigerator.

[0070] In an embodiment, the speed range of the compressor is 1200-4500rpm, and the speed in the normal mode is set according to the ambient temperature; it can also be set according to changes in load and refrigeration cycle; the second speed is also set according to the ambient temperature, which is the lowest speed that can maintain the target set temperature.

[0071] In an embodiment, the refrigeration fan speed voltage is 7-12V, and the speed of the refrigeration fan in the normal mode is a common speed set according to the ambient temperature, and the corresponding voltage is usually set at about 8-10V; the first speed is the speed corresponding to the maximum voltage of 12V, and the third speed is the speed corresponding to the minimum voltage of 7V.

[0072] In order to better implement the moisturizing control method for a refrigerating chamber in the embodiment of the present application, based on the moisturizing control method for a refrigerating chamber, the embodiment of the present application further provides a moisturizing control device for a refrigerating chamber, such as Figure 6 As shown, the moisturizing control device of the refrigerating chamber includes:

[0073] An acquisition module 10 is used to acquire the refrigeration temperature of the refrigeration chamber and the freezing temperature of the freezing chamber;

[0074] The control module 20 is used to control the dual-system refrigerator to enter a refrigeration chamber moisturizing mode when the refrigeration temperature and the freezing temperature are both lower than a first preset temperature.

[0075] Optionally, the control module 20 is also used to control the solenoid valve to be in a first state and control the refrigeration fan to run at a first speed when controlling the dual-system refrigerator to enter the refrigerator compartment moisturizing mode. If the refrigeration temperature is lower than the shutdown point temperature, the compressor only supplies cold air to the freezing evaporator.

[0076] Optionally, the control module 20 is further configured to control the refrigeration fan to operate at a first speed, control the compressor to operate at a second speed, and control the solenoid valve to be in a second state when the dual-system refrigerator is controlled to enter the refrigeration chamber moisturizing mode, if the refrigeration temperature is higher than the start-up point temperature, until the refrigeration temperature is lower than the stop-point temperature; in the second state, the compressor supplies cold air to the refrigeration evaporator and the freezing evaporator;

[0077] Wherein, the power-on point temperature is lower than the first preset temperature.

[0078] Optionally, the acquisition module 10 is further used to acquire a defrosting temperature for indicating defrosting of the refrigeration evaporator when the solenoid valve is controlled to be in a first state and the refrigeration fan is controlled to run at a first speed;

[0079] Optionally, the control module 20 is further configured to control the speed of the refrigeration fan to decrease from the first speed to a third speed if the defrost temperature is higher than a third preset temperature, until the defrost temperature is higher than a fourth preset temperature;

[0080] If the defrost temperature is higher than the fourth preset temperature, the rotation speed of the refrigeration fan is controlled to decrease from the third rotation speed to 0 until the refrigeration temperature is higher than the start-up point temperature.

[0081] Optionally, the control module 20 is further configured to control the dual-system refrigerator to enter a normal mode when the refrigeration temperature or the freezing temperature is higher than a first preset temperature, until both the refrigeration temperature and the freezing temperature are lower than a first preset temperature;

[0082] The rotation speed of the compressor in the normal mode is higher than the second rotation speed, and the rotation speed of the refrigeration fan in the normal mode is lower than the first rotation speed.

[0083] Optionally, the acquisition module 10 is also used to acquire the ambient temperature;

[0084] The determination module is used to determine the rotation speed of the compressor in the normal mode and the second rotation speed and the rotation speed of the refrigeration fan in the normal mode according to the ambient temperature.

[0085] Optionally, the first preset temperature is greater than the power-on point temperature of the dual-system refrigerator, and the difference between the first preset temperature and the power-on point temperature is in the range of greater than 0°C and less than or equal to 2°C.

[0086] An embodiment of the present application also proposes a moisturizing control system for a cold storage room, comprising: one or more processors; a memory; and one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the moisturizing control method for a cold storage room as described above.

[0087] In general, usually, the moisturizing control system of the cold storage room includes: at least one processor, at least one memory, and a control program of the moisturizing control system of the cold storage room stored in the memory and executable on the processor, and the control program of the moisturizing control system of the cold storage room is configured to implement the steps of the previous control method.

[0088] The processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. The processor may also include an AI (Artificial Intelligence) processor, which is used to process the control method operation of the moisturizing control system of the cold storage room, so that the control method model of the moisturizing control system of the cold storage room can be trained and learned autonomously to improve efficiency and accuracy.

[0089] The memory may include one or more computer-readable storage media, which may be non-transitory. The memory may also include high-speed random access memory, and non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory is used to store at least one instruction, which is used to be executed by the processor to implement the moisturizing control method of the refrigerated room of the moisturizing control system of the refrigerated room provided in the method embodiment of the present application:

[0090] Take the refrigeration temperature of the refrigerator and the freezing temperature of the freezer;

[0091] When the refrigeration temperature and the freezing temperature are both lower than a first preset temperature, the dual-system refrigerator is controlled to enter a refrigeration chamber moisturizing mode.

[0092] As an optional implementation of the above embodiment, when controlling the dual-system refrigerator to enter the refrigerator compartment moisturizing mode, if the refrigeration temperature is lower than the shutdown point temperature, the solenoid valve is controlled to be in a first state and the refrigeration fan is controlled to run at a first speed; in the first state, the compressor only supplies cold air to the freezing evaporator.

[0093] As an optional implementation of the above embodiment, when the dual-system refrigerator is controlled to enter the refrigerating chamber moisturizing mode, if the refrigerating temperature is higher than the start-up point temperature, the refrigerating fan is controlled to operate at a first speed, the compressor is controlled to operate at a second speed, and the solenoid valve is controlled to be in a second state until the refrigerating temperature is lower than the stop-point temperature; in the second state, the compressor supplies cold air to the refrigerating evaporator and the freezing evaporator;

[0094] Wherein, the power-on point temperature is lower than the first preset temperature.

[0095] As an optional implementation of the above embodiment, when the solenoid valve is controlled to be in a first state and the refrigeration fan is controlled to run at a first speed, a defrosting temperature for indicating defrosting of the refrigeration evaporator is obtained;

[0096] If the defrost temperature is higher than the third preset temperature, controlling the speed of the refrigeration fan to decrease from the first speed to the third speed until the defrost temperature is higher than the fourth preset temperature;

[0097] If the defrost temperature is higher than the fourth preset temperature, the rotation speed of the refrigeration fan is controlled to decrease from the third rotation speed to 0 until the refrigeration temperature is higher than the start-up point temperature.

[0098] As an optional implementation of the above embodiment, when the refrigeration temperature or the freezing temperature is higher than a first preset temperature, the dual-system refrigerator is controlled to enter a normal mode of operation until both the refrigeration temperature and the freezing temperature are lower than the first preset temperature;

[0099] The rotation speed of the compressor in the normal mode is higher than the second rotation speed, and the rotation speed of the refrigeration fan in the normal mode is lower than the first rotation speed.

[0100] As an optional implementation of the above embodiment, the control method further includes:

[0101] Get the ambient temperature;

[0102] According to the ambient temperature, the rotation speed of the compressor in the normal mode and the second rotation speed and the rotation speed of the refrigeration fan in the normal mode are determined.

[0103] As an optional implementation of the above embodiment, the first preset temperature is greater than the power-on point temperature of the dual-system refrigerator, and the difference between the first preset temperature and the power-on point temperature ranges from greater than 0°C to less than or equal to 2°C.

[0104] The above is a detailed introduction to a dual-system refrigerator and a moisturizing control method, device and medium for a cold storage compartment thereof provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation method and scope of application. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A method for controlling the moisture retention of a refrigerator compartment, used in a dual-system refrigerator; characterized in that: include: Get the refrigerating temperature of the refrigerator and the freezing temperature of the freezer; When the refrigeration temperature and the freezing temperature are both lower than a first preset temperature, the dual-system refrigerator is controlled to enter a refrigeration chamber moisturizing mode.

2. The method for controlling the moisture retention of a refrigerator compartment as claimed in claim 1, characterized in that: When controlling the dual-system refrigerator to enter the refrigerator compartment moisturizing mode, if the refrigeration temperature is lower than the shutdown point temperature, the solenoid valve is controlled to be in the first state and the refrigeration fan is controlled to run at the first speed; in the first state, the compressor only supplies cold air to the freezing evaporator.

3. The method for controlling the moisture retention of a refrigerator compartment as claimed in claim 2, characterized in that: When the dual-system refrigerator is controlled to enter the refrigeration chamber moisturizing mode, if the refrigeration temperature is higher than the start-up point temperature, the refrigeration fan is controlled to operate at a first speed, the compressor is controlled to operate at a second speed, and the solenoid valve is controlled to be in a second state until the refrigeration temperature is lower than the stop point temperature; In the second state, the compressor supplies cold air to the refrigerating evaporator and the freezing evaporator; Wherein, the power-on point temperature is lower than the first preset temperature.

4. The method for controlling the moisture retention of a refrigerator compartment as claimed in claim 3, characterized in that: When the solenoid valve is controlled to be in a first state and the refrigeration fan is controlled to run at a first speed, a defrosting temperature for indicating defrosting of the refrigeration evaporator is obtained; If the defrost temperature is higher than the third preset temperature, controlling the speed of the refrigeration fan to decrease from the first speed to the third speed until the defrost temperature is higher than the fourth preset temperature; If the defrost temperature is higher than the fourth preset temperature, the rotation speed of the refrigeration fan is controlled to decrease from the third rotation speed to 0 until the refrigeration temperature is higher than the start-up point temperature.

5. The method for controlling the moisture retention of a refrigerator compartment as claimed in claim 3, characterized in that: When the refrigerating temperature or the freezing temperature is higher than a first preset temperature, controlling the dual-system refrigerator to enter a normal mode of operation until both the refrigerating temperature and the freezing temperature are lower than the first preset temperature; The rotation speed of the compressor in the normal mode is higher than the second rotation speed, and the rotation speed of the refrigeration fan in the normal mode is lower than the first rotation speed.

6. The method for controlling the moisture retention of a refrigerator compartment as claimed in claim 5, characterized in that: The control method further comprises: Get the ambient temperature; According to the ambient temperature, the rotation speed of the compressor in the normal mode and the second rotation speed and the rotation speed of the refrigeration fan in the normal mode are determined.

7. The method for controlling the humidity of a refrigerator compartment according to claim 1, characterized in that: The first preset temperature is greater than the power-on point temperature of the dual-system refrigerator, and the difference between the first preset temperature and the power-on point temperature is in the range of greater than 0° C. and less than or equal to 2° C.

8. A moisturizing control device for a refrigerator compartment, characterized in that: include: An acquisition module, used for acquiring the refrigerating temperature of the refrigerating chamber and the freezing temperature of the freezing chamber; The control module is used to control the dual-system refrigerator to enter a refrigeration chamber moisturizing mode when the refrigeration temperature and the freezing temperature are both lower than a first preset temperature.

9. A dual system refrigerator, characterized in that: The method comprises a controller configured to execute the steps of the method for controlling the moisturizing of a refrigerating chamber according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in the method for controlling the moisturizing of a refrigerating chamber as claimed in any one of claims 1 to 7.

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