Refrigerator control method, device, refrigerator and storage medium

Abstract

The present invention discloses a control method, device, refrigerator and storage medium of a refrigerator, the method comprising: a one-way valve assembly is arranged at the freezing mask air outlet of the freezing chamber of the refrigerator; after the refrigerator is powered on or after the refrigerator is defrosted, the refrigerator is controlled to enter a preset preliminary refrigeration stage; in the preliminary refrigeration stage, the refrigerator is controlled to refrigerate according to the refrigeration requirements of the refrigerating chamber and the freezing chamber; in the case that there is no new refrigeration requirement in the refrigerating chamber, the refrigerator is controlled to enter a preset refrigeration maintenance stage; in the refrigeration maintenance stage, according to the use requirements of the user of the refrigerator, the refrigerator is controlled to operate a preset normal refrigeration mode, or the refrigerator is controlled to operate a preset energy-saving refrigeration mode. This solution can ensure the uniformity of the temperature of the refrigerator during refrigeration by preventing the cold of the freezing chamber from being sucked back into the refrigerating chamber and controlling the refrigeration temperatures of the refrigerating chamber and the freezing chamber separately.

Description

Technical Field

[0001] The present invention belongs to the technical field of refrigerators, and specifically relates to a control method, device, refrigerator and storage medium for a refrigerator, and more particularly to a control method, device, refrigerator and storage medium for a refrigerator in which a one-way valve assembly is provided at an air outlet of a freezer compartment mask. Background Art

[0002] With the popularity of refrigerators in people's lives, people's requirements for refrigerator performance are constantly increasing, and air-cooled frost-free refrigerators have been widely promoted and used. The refrigerator and freezer of air-cooled frost-free refrigerators cool each compartment through the air supply channel in the mask of each compartment. However, when cooling the refrigerator, the air inlet of the refrigerator has a high wind speed to form a low-pressure side, which will suck the cold in the freezer into the refrigerator; in this case, when the refrigerator is adjusted or the load increases, it will affect the temperature of the freezer and cause the temperature of the freezer to fluctuate, affecting the refrigeration effect of the freezer, and also making the temperature of the refrigerator uneven during refrigeration, affecting the overall refrigeration effect of the refrigerator.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The object of the present invention is to provide a control method and device for a refrigerator, a refrigerator and a storage medium, so as to solve the problem that the refrigerator (such as an air-cooled frost-free refrigerator) cools the cold storage room and the freezer room through the air supply channel in the mask of each compartment. When both the freezer room and the cold storage room have cooling requirements, part of the cold energy of the freezer room will be sucked into the cold storage room, resulting in uneven temperature of the refrigerator during cooling. By arranging a one-way valve assembly at the air outlet of the freezer room mask, the cold energy of the freezer room is prevented from being sucked back into the cold storage room, and the cooling temperatures of the cold storage room and the freezer room are controlled separately, so as to ensure the uniformity of the temperature of the refrigerator during cooling.

[0005] The present invention provides a control method for a refrigerator, wherein the refrigerator has a refrigerating chamber and a freezing chamber; a one-way valve assembly is arranged at the freezing mask air outlet of the freezing chamber; the one-way valve assembly enables the freezing mask air outlet of the freezing chamber to be ventilated only in one direction from the evaporator bin of the refrigerator to the freezing chamber; the control method for the refrigerator comprises: after the refrigerator is powered on or after the refrigerator is defrosted, controlling the refrigerator to enter a preset preliminary refrigeration stage; wherein the preliminary refrigeration stage is a stage in which refrigeration starts after the refrigerator is powered on, or a stage in which refrigeration starts after defrosting during the operation of the refrigerator; in the preliminary refrigeration stage, according to the refrigeration requirements of the refrigerating chamber and the freezing chamber, controlling the refrigerator to refrigerate; in the case where there is no new refrigeration requirement in the refrigerating chamber, controlling the refrigerator to enter a preset refrigeration maintenance stage; in the refrigeration maintenance stage, according to the use requirements of the user of the refrigerator, controlling the refrigerator to operate in a preset normal refrigeration mode, or controlling the refrigerator to operate in a preset energy-saving refrigeration mode.

[0006] In some embodiments, in the preliminary refrigeration stage, the refrigerator is controlled to perform refrigeration according to the refrigeration requirements of the refrigerating chamber and the freezer, including: determining whether both the refrigerating chamber and the freezer have refrigeration requirements; if it is determined that both the refrigerating chamber and the freezer have refrigeration requirements, first controlling the refrigerator to refrigerate the refrigerating chamber, and then controlling the refrigerator to refrigerate the freezer; determining whether the refrigerating chamber has a new refrigeration requirement; if it is determined that the refrigerating chamber has a new refrigeration requirement, returning to continue controlling the refrigerator to perform refrigeration according to the refrigeration requirements of the refrigerating chamber and the freezer; if it is determined that the refrigerating chamber has no new refrigeration requirement, determining that the refrigerating chamber has no refrigeration requirement.

[0007] In some embodiments, in the refrigeration maintenance stage, according to the use requirements of the user of the refrigerator, the refrigerator is controlled to run a preset normal refrigeration mode, including: in the normal refrigeration mode, determining whether the refrigerating chamber has a new refrigeration demand; if it is determined that the refrigerating chamber does not have a new refrigeration demand, determining whether the freezer has a new refrigeration demand: if so, returning to continue to determine whether the refrigerating chamber has a new refrigeration demand in the normal refrigeration mode; otherwise, controlling the compressor of the refrigerator to stop for a first set time; if it is determined that the refrigerating chamber has a new refrigeration demand, controlling the refrigerator to refrigerate the refrigerating chamber until the refrigeration temperature of the refrigerating chamber meets the target refrigeration temperature set for the refrigeration demand of the refrigerating chamber; within a second set time after the refrigerating chamber has a new refrigeration demand and the refrigeration temperature of the refrigerating chamber meets the target refrigeration temperature set for the refrigeration demand of the refrigerating chamber, determining whether the freezer has a new refrigeration demand: if so, controlling the speed of the compressor of the refrigerator to increase the set gear in a set manner, and then controlling the refrigerator to refrigerate the freezer; otherwise, controlling the compressor of the refrigerator to stop for the first set time.

[0008] In some embodiments, during the refrigeration maintenance stage, the refrigerator is controlled to run a preset energy-saving refrigeration mode according to the usage requirements of the user of the refrigerator, including: in the energy-saving refrigeration mode, determining whether the freezer has a new refrigeration demand; if it is determined that the freezer has a new refrigeration demand, controlling the refrigerator to refrigerate the freezer until the freezing temperature of the freezer meets the target freezing temperature set for the refrigeration demand of the freezer; if it is determined that the freezer has no new refrigeration demand, or after determining that the freezer has a new refrigeration demand and the freezing temperature of the freezer meets the target freezing temperature set for the refrigeration demand of the freezer, determining whether the refrigerator has a new refrigeration demand: if so, refrigerating the refrigerator according to the frost layer temperature of the evaporator bin of the refrigerator; otherwise, controlling the compressor of the refrigerator to stop.

[0009] In some embodiments, the refrigerator compartment is refrigerated according to the frost layer temperature of the evaporator bin of the refrigerator, including: determining whether the frost layer temperature of the evaporator bin is less than a set temperature when the compressor of the refrigerator was stopped last time; if it is determined that the frost layer temperature of the evaporator bin is less than the set temperature, only turning on the refrigeration fan of the freezer compartment to cool the freezer compartment, using the return air temperature of the refrigerator compartment to defrost the frost layer of the evaporator, and using the cold released by the melting of the frost layer of the evaporator bin to cool the refrigerator compartment, until the refrigeration temperature of the refrigerator compartment meets the target refrigeration temperature set for the refrigeration demand of the refrigerator compartment or the frost layer temperature of the evaporator bin is greater than the set temperature; if it is determined that the frost layer temperature of the evaporator bin is greater than or equal to the set temperature, controlling the refrigerator to refrigerate the refrigerator compartment until the refrigeration temperature of the refrigerator compartment meets the target refrigeration temperature set for the refrigeration demand of the refrigerator compartment.

[0010] Matching the above method, the present invention provides a control device of a refrigerator on the other hand, wherein the refrigerator has a refrigerating chamber and a freezing chamber; a one-way valve assembly is arranged at the freezing mask air outlet of the freezing chamber; the one-way valve assembly enables the freezing mask air outlet of the freezing chamber to be ventilated only in one direction from the evaporator bin of the refrigerator to the freezing chamber; the control device of the refrigerator comprises: a control unit configured to control the refrigerator to enter a preset preliminary refrigeration stage after the refrigerator is powered on or after the refrigerator is defrosted; wherein the preliminary refrigeration stage is a stage in which refrigeration starts after the refrigerator is powered on, or a stage in which refrigeration starts after defrosting during the operation of the refrigerator; the control unit is further configured to control the refrigerator to refrigerate according to the refrigerating requirements of the refrigerating chamber and the freezing chamber in the preliminary refrigeration stage; the control unit is further configured to control the refrigerator to enter a preset refrigeration maintenance stage when there is no new refrigeration requirement in the refrigerating chamber; the control unit is further configured to control the refrigerator to operate in a preset normal refrigeration mode or a preset energy-saving refrigeration mode in the refrigeration maintenance stage according to the use requirements of the user of the refrigerator.

[0011] In some embodiments, the control unit controls the refrigerator to perform refrigeration according to the refrigeration requirements of the refrigerating chamber and the freezer chamber during the preliminary refrigeration stage, including: determining whether both the refrigerating chamber and the freezer chamber have refrigeration requirements; if it is determined that both the refrigerating chamber and the freezer chamber have refrigeration requirements, first controlling the refrigerator to refrigerate the refrigerating chamber, and then controlling the refrigerator to refrigerate the freezer chamber; determining whether the refrigerating chamber has a new refrigeration requirement; if it is determined that the refrigerating chamber has a new refrigeration requirement, returning to continue controlling the refrigerator to perform refrigeration according to the refrigerating requirements of the refrigerating chamber and the freezer chamber; if it is determined that the refrigerating chamber has no new refrigeration requirement, determining that the refrigerating chamber has no refrigeration requirement.

[0012] In some embodiments, the control unit controls the refrigerator to operate a preset normal refrigeration mode according to the usage requirements of the user of the refrigerator during the refrigeration maintenance stage, including: determining whether the refrigerating chamber has a new refrigeration demand in the normal refrigeration mode; if it is determined that the refrigerating chamber has no new refrigeration demand, determining whether the freezer has a new refrigeration demand: if so, returning to continue determining whether the refrigerating chamber has a new refrigeration demand in the normal refrigeration mode; otherwise, controlling the compressor of the refrigerator to stop for a first set time; if it is determined that the refrigerating chamber has a new refrigeration demand, controlling the refrigerator to refrigerate the refrigerating chamber until the refrigeration temperature of the refrigerating chamber meets the target refrigeration temperature set for the refrigeration demand of the refrigerating chamber; determining whether the freezer has a new refrigeration demand within a second set time after the refrigerating chamber has a new refrigeration demand and the refrigeration temperature of the refrigerating chamber meets the target refrigeration temperature set for the refrigeration demand of the refrigerating chamber: if so, controlling the speed of the compressor of the refrigerator to increase the set gear in a set manner, and then controlling the refrigerator to refrigerate the freezer; otherwise, controlling the compressor of the refrigerator to stop for the first set time.

[0013] In some embodiments, the control unit, during the refrigeration maintenance stage, controls the refrigerator to run a preset energy-saving refrigeration mode according to the usage requirements of the user of the refrigerator, including: in the energy-saving refrigeration mode, determining whether the freezer has a new refrigeration demand; if it is determined that the freezer has a new refrigeration demand, controlling the refrigerator to refrigerate the freezer until the freezing temperature of the freezer meets the target freezing temperature set for the refrigeration demand of the freezer; if it is determined that the freezer has no new refrigeration demand, or after determining that the freezer has a new refrigeration demand and the freezing temperature of the freezer meets the target freezing temperature set for the refrigeration demand of the freezer, determining whether the refrigerator has a new refrigeration demand: if so, cooling the refrigerator according to the frost layer temperature of the evaporator bin of the refrigerator; otherwise, controlling the compressor of the refrigerator to stop.

[0014] In some embodiments, the control unit cools the cold storage chamber according to the frost layer temperature of the evaporator bin of the refrigerator, including: determining whether the frost layer temperature of the evaporator bin is less than a set temperature when the compressor of the refrigerator was stopped last time; if it is determined that the frost layer temperature of the evaporator bin is less than the set temperature, only turning on the refrigeration fan of the freezer chamber to cool the freezer chamber, using the return air temperature of the cold storage chamber to defrost the frost layer of the evaporator, and using the cold energy released by the melting of the frost layer of the evaporator bin to cool the cold storage chamber, until the refrigeration temperature of the cold storage chamber meets the target refrigeration temperature set for the refrigeration demand of the cold storage chamber or the frost layer temperature of the evaporator bin is greater than the set temperature; if it is determined that the frost layer temperature of the evaporator bin is greater than or equal to the set temperature, controlling the refrigerator to cool the cold storage chamber until the refrigeration temperature of the cold storage chamber meets the target refrigeration temperature set for the refrigeration demand of the cold storage chamber.

[0015] Matching the above device, the present invention provides a refrigerator on another aspect, including: the control device of the refrigerator described above.

[0016] In accordance with the above method, the present invention provides a storage medium on the other hand, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the refrigerator control method described above.

[0017] Therefore, the scheme of the present invention, by arranging a one-way valve assembly at the air outlet of the freezer chamber mask, the freezer chamber mask can only be ventilated in one direction from the evaporator compartment to the freezer chamber, like this, during the refrigeration process of the refrigerator chamber, the cold energy of the freezer chamber cannot be backsucked into the refrigerating chamber, thereby realizing the separate refrigeration of the refrigerator chamber and the freezer chamber, and when the refrigerator chamber and the freezer chamber can be refrigerated separately, the refrigeration temperatures of the refrigerator chamber and the freezer chamber are controlled separately. Therefore, by arranging a one-way valve assembly at the air outlet of the freezer chamber mask, part of the cold energy of the freezer chamber is prevented from being sucked into the refrigerator chamber, that is, the cold energy of the freezer chamber is prevented from being backsucked into the refrigerator chamber, and the refrigeration temperatures of the refrigerator chamber and the freezer chamber are controlled separately, thereby ensuring the temperature uniformity of the refrigerator during refrigeration.

[0018] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention.

[0019] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic flow chart of an embodiment of a refrigerator control method of the present invention;

[0021] Figure 2It is a flow chart of an embodiment of controlling refrigerator refrigeration in the preliminary refrigeration stage in the method of the present invention;

[0022] Figure 3 It is a flow chart of an embodiment of controlling a refrigerator to operate in a normal refrigeration mode during a refrigeration maintenance phase in the method of the present invention;

[0023] Figure 4 It is a flow chart of an embodiment of controlling a refrigerator to operate in an energy-saving refrigeration mode during a refrigeration maintenance phase in the method of the present invention;

[0024] Figure 5 It is a flow chart of an embodiment of the method of the present invention for refrigerating a refrigerating chamber according to the thickness of the frost layer on the evaporator bin of the refrigerator;

[0025] Figure 6 It is a structural schematic diagram of an embodiment of a refrigerator control device of the present invention;

[0026] Figure 7 It is a structural schematic diagram of a one-way valve;

[0027] Figure 8 A flow chart for distinguishing the control modes of a refrigerator based on a basic structure in which a one-way valve is provided at an air outlet of a freezer compartment mask of a freezer compartment;

[0028] Fig. 9 It is a control flow diagram of the refrigerator in the initial refrigeration stage;

[0029] Fig.10 It is a control flow diagram of the refrigeration maintenance phase of the low temperature fluctuation refrigeration mode;

[0030] Fig.11 This is a schematic diagram of the control flow of the refrigeration maintenance phase in the energy-saving refrigeration mode.

[0031] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0032] 10-freezer mask air outlet; 20-check valve. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Considering that in a single-system air-cooled refrigerator, the freezer and refrigerator are both cooled by the same evaporator. When there is a cooling demand in the freezer but not in the refrigerator, only the freezer is cooled. The machine stops at the freezing stop point of the freezer and starts at the freezing start point of the freezer, that is, within a set temperature range, the machine starts cooling when the upper limit is reached and stops when the lower limit is reached. However, when there is a cooling demand in the refrigerator, the damper leading to the refrigerator (i.e., a switch of the refrigeration passage leading to the refrigerator) is opened. At this time, because the freezing temperature of the freezer is low and the damper of the freezer is not closed, the freezer is always connected to the evaporator compartment. At this time, part of the cold air in the freezer will go to the refrigerator, causing the freezing temperature of the freezer to rise, and the freezing temperature fluctuation range of the freezer will exceed the set temperature range. In other words, only when the freezer has a separate cooling demand, the temperature fluctuation range of the freezer can be the same as the set temperature range. If the refrigerator also participates in refrigeration, the upper limit of the temperature fluctuation range of the freezer will be pulled up, that is, the temperature fluctuation range of the freezer will increase, affecting the refrigeration effect of the freezer and causing the temperature to be uneven during refrigeration.

[0035] In addition, because the low temperature and refrigeration channel of the freezer cannot be closed, when there is also a demand for refrigeration in the refrigerator, the air will be sucked back into the refrigerator, causing the refrigeration temperature of the refrigerator to be lower. This will cause a waste of defrosting cooling capacity when using the return air from the refrigerator to defrost.

[0036] Therefore, the scheme of the present invention provides a refrigerator structure and a control method based on the refrigerator structure, which can avoid large fluctuations in the freezing temperature of the freezer compartment when there is also a refrigeration demand in the refrigerator compartment, and also avoid waste of defrosting cooling capacity.

[0037] According to an embodiment of the present invention, a method for controlling a refrigerator is provided. Figure 1 The flowchart of an embodiment of the method of the present invention is shown. The refrigerator has an evaporator, a refrigerating chamber and a freezing chamber. A one-way valve assembly (such as a one-way valve 10) is provided at the freezing mask air outlet 10 of the freezing chamber. The one-way valve assembly enables the freezing mask air outlet 10 of the freezing chamber to be ventilated only in one direction from the evaporator compartment of the refrigerator to the freezing chamber, so as to realize separate refrigeration of the refrigerating chamber and the freezing chamber.

[0038] Specifically, the solution of the present invention can be applied to most refrigerators without changing the original structure of the refrigerator, and the one-way valve assembly (such as the one-way valve 20) is installed at the freezer compartment mask air outlet of the freezer compartment in the refrigerator. Figure 7 It is a structural diagram of a one-way valve. Figure 7As shown, the one-way valve 20 can be installed at the air outlet 10 of the freezer mask of the refrigerator, specifically installed on the outside of the air outlet 10 of the freezer mask, so that the freezer mask is only ventilated in one direction, that is, it can only be ventilated from the evaporator compartment to the freezer, avoiding the back-sucking of wind from the freezer with a lower temperature into the refrigerator during refrigeration in the refrigerator, so that the refrigerator and freezer can be refrigerated separately. After the one-way valve 20 is installed at the air outlet 10 of the freezer mask of the refrigerator, the one-way valve 20 can prevent the freezer from back-sucking wind when the refrigerator is refrigerated, so as to cause large temperature fluctuations in the freezer. Among them, the one-way valve 20 is used as a switch, and there is a baffle in the switch. The setting of the baffle can make the wind blow out when it blows outward, and the baffle will block the wind when the wind blows from the outside to the inside, and the wind can only pass in one direction. Because most of the refrigerator freezer outlets have protrusions as wind guides, a corresponding protrusion is also made in front of the one-way valve 20.

[0039] The solution of the present invention is based on a refrigerator structure in which a one-way valve assembly (such as a one-way valve 10) is provided at the freezing mask air outlet 10 of the freezing chamber, and the control method of the refrigerator includes: steps S110 to S140.

[0040] At step S110, after the refrigerator is powered on or after the refrigerator is defrosted, the refrigerator is controlled to enter a preset initial refrigeration stage; wherein the initial refrigeration stage is a stage in which refrigeration starts after the refrigerator is powered on, or a stage in which refrigeration starts after defrosting during the operation of the refrigerator.

[0041] At step S120, in the preliminary refrigeration stage, the refrigerator is controlled to perform refrigeration according to the refrigeration requirements of the refrigerating chamber and the freezing chamber.

[0042] In some embodiments, in the initial refrigeration stage in step S120, the specific process of controlling the refrigerator to perform refrigeration according to the refrigeration requirements of the refrigerating chamber and the freezing chamber can be referred to the following exemplary description.

[0043] Combine the following Figure 2 The flowchart of an embodiment of controlling the refrigeration of a refrigerator in the preliminary refrigeration stage in the method of the present invention further illustrates the specific process of controlling the refrigeration of the refrigerator in the preliminary refrigeration stage in step S120, including: steps S210 to S250.

[0044] Step S210, determining whether both the refrigerating chamber and the freezing chamber have a refrigeration demand. The initial refrigeration stage is the stage where the refrigerator starts refrigeration after being powered on, or the stage where the refrigerator starts refrigeration after defrosting during operation.

[0045] Step S220, if it is determined that both the refrigerating chamber and the freezing chamber have a refrigeration demand, that is, when both the refrigerating chamber and the freezing chamber have a refrigeration demand, the refrigerator is first controlled to refrigerate the refrigerating chamber, and then the refrigerator is controlled to refrigerate the freezing chamber. Specifically, the refrigerator is first controlled to refrigerate the refrigerating chamber until the refrigerating temperature of the refrigerating chamber reaches the target refrigerating temperature set by the refrigerating demand of the refrigerating chamber, and then the refrigerator is controlled to refrigerate the freezing chamber until the freezing temperature of the freezing chamber reaches the target freezing temperature set by the refrigerating demand of the freezing chamber. Of course, if it is determined that the refrigerating chamber and the freezing chamber do not both have a refrigeration demand, the refrigerator is controlled to refrigerate the compartment with a refrigeration demand until the refrigeration temperature of the compartment reaches the target refrigeration temperature set by the refrigeration demand of the compartment.

[0046] Step S230, determining whether the refrigerating chamber has a new refrigeration demand.

[0047] Step S240, if it is determined that the refrigerating chamber has a new refrigeration demand, return to continue controlling the refrigerator to refrigerate according to the refrigerating chamber and the freezer chamber refrigeration demand, that is, re-execute the refrigeration control logic when both the refrigerating chamber and the freezer chamber have refrigeration demand.

[0048] Step S250, if it is determined that there is no new refrigeration demand for the refrigerating chamber, then it is determined that there is no refrigeration demand for the refrigerating chamber, so that when it is determined that there is no refrigeration demand for the refrigerating chamber, the refrigerator is controlled to enter the preset refrigeration maintenance stage. That is, if it is determined that there is no new refrigeration demand for the refrigerating chamber, the refrigerator is controlled to enter the preset refrigeration maintenance stage and operate in the preset refrigeration maintenance stage. The refrigeration maintenance stage is the refrigeration maintenance stage in the normal refrigeration mode or the refrigeration maintenance stage in the energy-saving refrigeration mode. The refrigerator structure in which a one-way valve assembly (such as a one-way valve 10) is provided at the freezing mask air outlet 10 of the freezing chamber can operate in the normal refrigeration mode or the energy-saving refrigeration mode, which can be selected according to user needs. Among them, the normal refrigeration mode, that is, the low temperature fluctuation refrigeration mode, can refrigerate normally but not save energy. The energy-saving refrigeration mode, that is, refrigeration under energy-saving conditions, has a refrigeration effect that is not as good as that of the normal refrigeration mode, but is relatively energy-saving.

[0049] Specifically, Fig. 9 This is a schematic diagram of the control process of the refrigerator in the initial refrigeration stage. Fig. 9 As shown in the figure, the control process of the refrigerator in the initial refrigeration stage includes:

[0050] Step 11: When the temperature of the refrigerator compartment and the temperature of the freezer compartment are both high and there is a refrigeration demand, execute step 12.

[0051] Step 12: refrigerate the refrigerator compartment first until the temperature of the refrigerator compartment reaches the refrigeration requirement of the refrigerator compartment, and then execute step 13.

[0052] Step 13: After the temperature of the refrigerating chamber reaches the refrigeration demand of the refrigerating chamber, refrigerate the freezer chamber until the temperature of the freezer chamber reaches the refrigeration demand of the freezer chamber, and then execute step 14.

[0053] Among them, in the initial stage of refrigeration, both the refrigerator and the freezer have refrigeration needs, the compressor is turned on, the refrigeration damper of the refrigerator is opened, and the refrigerator and the freezer are refrigerated at the same time, just like the normal refrigeration method. After the first refrigeration meets the standard, it enters the refrigeration maintenance stage.

[0054] Step 14: After the temperature of the freezer compartment reaches the refrigeration requirement of the freezer compartment, determine whether there is a new refrigeration requirement for the refrigerator compartment: if so, return to step 12; otherwise, execute step 15.

[0055] Step 15: When the temperature of the freezer compartment reaches the refrigeration demand of the freezer compartment and there is no new refrigeration demand in the refrigerator compartment immediately, the refrigeration maintenance stage is entered.

[0056] Among them, the initial refrigeration stage occurs when the refrigerator just starts to refrigerate and when the refrigerator is refrigerated after defrosting. The refrigeration maintenance stage is divided into two modes: low temperature fluctuation refrigeration mode and energy-saving refrigeration mode, which can be selected by the customer according to their needs. Here, the low temperature fluctuation refrigeration mode has a good control effect on temperature fluctuations, but it needs to compensate for power consumption. The energy-saving refrigeration mode is to use the cold energy of the frost layer in the evaporator bin to cool the refrigerator compartment when the refrigerator compartment and the freezer compartment are refrigerated separately. The requirements for the temperature drop speed and fluctuation range of the refrigerator compartment are not very high, and the cold energy of the freezer compartment cannot be taken away.

[0057] At step S130, after the initial refrigeration stage, when there is no new refrigeration demand in the refrigerating chamber, the refrigerator is controlled to enter a preset refrigeration maintenance stage.

[0058] In some embodiments, in step S130, during the refrigeration maintenance stage, the specific process of controlling the refrigerator to operate in a preset normal refrigeration mode according to the usage requirements of the user of the refrigerator is described in the following exemplary description.

[0059] Combine the following Figure 3 The flowchart of an embodiment of the method of the present invention for controlling the refrigerator to operate in a normal refrigeration mode during the refrigeration maintenance stage further illustrates the specific process of controlling the refrigerator to operate in a normal refrigeration mode during the refrigeration maintenance stage in step S130, including: steps S310 to S340.

[0060] At step S310, in the normal cooling mode, it is determined whether the refrigerating chamber has a new cooling demand.

[0061] At step S320, in the normal refrigeration mode, if it is determined that the refrigerating chamber has no new refrigeration demand, then determine whether the freezer has a new refrigeration demand: if so, return to continue determining whether the refrigerating chamber has a new refrigeration demand in the normal refrigeration mode. Otherwise, control the compressor of the refrigerator to stop for a first set time. The first set time may be a set time t1.

[0062] At step S330, in the normal refrigeration mode, if it is determined that the refrigerating chamber has a new refrigeration demand, the refrigerator is controlled to refrigerate the refrigerating chamber until the refrigerating temperature of the refrigerating chamber meets the target refrigerating temperature set for the refrigerating demand of the refrigerating chamber. Specifically, the compressor of the refrigerator is controlled to start, and the damper of the refrigerating chamber is controlled to open, and the refrigerating chamber is refrigerated until the refrigerating temperature of the refrigerating chamber meets the target refrigerating temperature set for the refrigerating demand of the refrigerating chamber.

[0063] At step S340, in the normal refrigeration mode, within the second set time after the refrigerating chamber has a new refrigeration demand and the refrigerating temperature of the refrigerating chamber meets the target refrigerating temperature set for the refrigerating demand of the refrigerating chamber, determine whether the freezer has a new refrigeration demand: if so, control the speed of the compressor of the refrigerator to increase the set gear in a set manner, control the refrigerator to refrigerate the freezer, and then return to re-determine whether the refrigerating chamber has a new refrigeration demand in the normal refrigeration mode. Otherwise, control the compressor of the refrigerator to stop for the first set time, and then return to re-determine whether the refrigerating chamber has a new refrigeration demand in the normal refrigeration mode. The second set time may also be the set time t1.

[0064] Specifically, Fig.10 This is a schematic diagram of the control flow of the refrigeration maintenance phase of the low temperature fluctuation refrigeration mode.

[0065] like Fig.10 As shown in FIG. 1 , the control process of the refrigeration maintenance phase of the low temperature fluctuation refrigeration mode includes:

[0066] Step 21, in the refrigeration maintenance stage of the low temperature fluctuation refrigeration mode, determine whether there is a refrigeration demand in the refrigeration chamber: if so, execute step 22; otherwise, execute step 23.

[0067] Step 22, control the compressor of the refrigerator to start, open the damper of the refrigerating chamber, and refrigerate the refrigerating chamber, but the refrigerating temperature of the refrigerating chamber meets the refrigeration demand of the refrigerating chamber, and then execute step 24.

[0068] Step 23, determine whether the freezer compartment has a refrigeration demand: if so, return to step 21, otherwise control the compressor to stop for a set time t1, and cool the freezer compartment alone until the freezer compartment shutdown condition is met, and then return to step 21.

[0069] Step 24, determine whether there is a refrigeration demand for the freezer compartment within the set time t1 after the refrigeration of the refrigerator compartment is completed: if so, execute step 25, otherwise control the compressor to stop for the set time t1, and then return to step 21.

[0070] Step 25, control the speed of the compressor to increase by one gear, such as increasing the speed by 30 rpm per minute to the next gear.

[0071] In this way, in the refrigeration maintenance stage of the low temperature fluctuation refrigeration mode, the temperature of the refrigerator and freezer is used as the first measurement standard. The refrigerator is refrigerated first, and the freezer is refrigerated after the refrigerator reaches the requirement. After the refrigeration of the refrigerator is completed, the downtime is required to be greater than the set time t1, so as to better control the temperature of the two compartments, otherwise the speed of the compressor is increased by one gear, and then the cycle refrigeration is carried out. Here, the refrigerator and freezer are refrigerated separately, with refrigeration first, and then freezing. There needs to be a downtime between them, and the compressor also needs a downtime to maintain its life. This downtime, such as the set time t1, is the minimum downtime interval of refrigeration and freezing to prevent activities such as gear adjustment or door opening from increasing the refrigerator load.

[0072] Among them, in the refrigeration maintenance stage of the low temperature fluctuation refrigeration mode, due to the setting of the one-way valve 20, separate refrigeration of the refrigerator and the freezer is achieved. Combined with the compensation of power consumption, the lower the temperature fluctuation range of each compartment, the better the food preservation effect, and the better the food can be controlled within the optimal control range.

[0073] At step S140, in the refrigeration maintenance stage, according to the use requirements of the user of the refrigerator, the refrigerator is controlled to operate in a preset normal refrigeration mode, or in a preset energy-saving refrigeration mode. The normal refrigeration mode and the energy-saving refrigeration mode are relative. The normal refrigeration mode is a low temperature fluctuation refrigeration mode, which has a better refrigeration effect but is not energy-saving. In the energy-saving refrigeration mode, the refrigeration effect is slightly weaker, but it is more energy-saving.

[0074] Specifically, Figure 8 The flowchart is a flow chart for distinguishing the control modes of a refrigerator based on the basic structure of setting a one-way valve at the air outlet of the freezer compartment mask of the freezer compartment. Figure 8 As shown, based on Figure 7 The structure shown in which a one-way valve 20 is installed at the mask air outlet 10 of the freezer compartment of the refrigerator can develop two refrigeration modes (i.e., two temperature control modes), namely, a low-temperature fluctuation refrigeration mode and an energy-saving refrigeration mode.

[0075] In the low-temperature fluctuation refrigeration mode, the air outlet of the freezer is one-way, which prevents the freezer from sucking air back into the refrigerator, increases the temperature recovery time of the freezer, and achieves precise temperature control of the refrigerator and freezer with the compartment temperature as the first indicator. This temperature control mode is a more stable low-temperature fluctuation refrigeration mode, which can avoid large fluctuations in the freezing temperature of the freezer when there is also a cooling demand in the refrigerator, and solves the problem of uneven temperature during the refrigerator refrigeration period.

[0076] In the energy-saving refrigeration mode, the temperature of the refrigerator compartment is used alone to defrost the frost layer of the evaporator bin, so as to save the energy consumption of the defrost heater. The cold released by the melting of the frost layer of the evaporator bin can also provide coldness for the refrigerator compartment, further saving energy consumption. This temperature control mode is an energy-saving refrigeration mode. The coldness during defrosting is used to cool the refrigerator compartment, which can reduce the heating energy consumption during defrosting and the energy consumption of the refrigerator compressor. In this way, under the premise that the refrigerator compartment and the freezer can be refrigerated independently, the high efficiency of the return air defrosting of the refrigerator compartment is guaranteed. Only the temperature of the refrigerator compartment is used to defrost the evaporator frost layer, and the coldness of the frost layer is used to cool the refrigerator compartment, which solves the problem of waste of defrosting coldness when using the return air of the refrigerator compartment for defrosting.

[0077] In the actual use of refrigerators, customers have various needs, sometimes requiring efficient refrigeration, and sometimes requiring a precise temperature control mode. The solution of the present invention provides two control modes based on a refrigerator structure, one is a low temperature fluctuation refrigeration mode, and the other is a low power consumption mode (i.e., energy-saving refrigeration mode), so as to meet different requirements of customers under different conditions. In this way, based on the independent refrigeration of the refrigerating chamber and the freezing chamber formed by installing a one-way valve 20 at the mask air outlet 10 of the freezer chamber of the refrigerator, the temperature control of the refrigerating chamber is realized in a precise temperature control mode with precise temperature control. In the precise temperature control mode, the independent refrigeration is realized by the structure of the one-way valve to ensure that the refrigeration of the refrigerating chamber does not affect the refrigeration of the freezing chamber, so as to realize precise temperature control.

[0078] The solution of the present invention provides a refrigerator structure and a control method based on the refrigerator structure. Through the refrigerator structure, the refrigerator compartment and the freezer compartment can be refrigerated separately, so that the temperature control of the refrigerator compartment and the freezer compartment is more accurate and easy to control. Based on the fact that the refrigerator compartment can be refrigerated separately, the refrigeration temperature of the refrigerator compartment and the freezer compartment is controlled through a new temperature control mode. Among them, the new temperature control method can specifically include two temperature control methods. One temperature control method is a normal refrigeration mode (i.e., a low temperature fluctuation refrigeration mode). In the normal refrigeration mode (i.e., a low temperature fluctuation refrigeration mode), the temperature control is more accurate and the temperature fluctuation is low. It can avoid the large fluctuation of the freezing temperature of the freezer compartment when there is also a refrigeration demand in the refrigerator compartment, and solve the problem of uneven temperature during the refrigeration of the refrigerator. Another temperature control method (i.e., energy-saving refrigeration mode) is that the evaporator of the refrigerator provides coldness to the refrigerator compartment, and uses the temperature of the refrigerator compartment when it is higher than 0°C for defrosting, avoiding the waste of defrosting coldness, and solving the problem of waste of defrosting coldness when using the return air of the refrigerator compartment for defrosting.

[0079] In some embodiments, in step S140, during the refrigeration maintenance stage, the specific process of controlling the refrigerator to run a preset energy-saving refrigeration mode according to the usage requirements of the user of the refrigerator can be referred to the following exemplary description.

[0080] Combine the following Figure 4 The flowchart of an embodiment of the method of the present invention for controlling the refrigerator to operate in the energy-saving refrigeration mode during the refrigeration maintenance stage further illustrates the specific process of controlling the refrigerator to operate in the energy-saving refrigeration mode during the refrigeration maintenance stage in step S140, including: steps S410 to S430.

[0081] Step S410: in the energy-saving refrigeration mode, determining whether there is a new refrigeration demand for the freezer compartment.

[0082] Step S420, in the energy-saving refrigeration mode, if it is determined that the freezer compartment has a new refrigeration demand, the refrigerator is controlled to refrigerate the freezer compartment until the freezing temperature of the freezer compartment meets the target freezing temperature set by the refrigeration demand of the freezer compartment. Specifically, the compressor of the refrigerator is controlled to start and refrigerate the freezer compartment until the freezing temperature of the freezer compartment meets the target freezing temperature set by the refrigeration demand of the freezer compartment.

[0083] Step S430, in the energy-saving refrigeration mode, if it is determined that the freezer compartment has no new refrigeration demand, or after it is determined that the freezer compartment has a new refrigeration demand and the freezing temperature of the freezer compartment meets the target freezing temperature set by the refrigeration demand of the freezer compartment, it is determined whether the refrigerator compartment has a new refrigeration demand: if so, the refrigerator compartment is refrigerated according to the frost layer temperature of the evaporator bin of the refrigerator. Otherwise, the compressor of the refrigerator is controlled to stop.

[0084] Specifically, Fig.11 The following is a control flow diagram of the cooling maintenance phase in the energy-saving cooling mode. Fig.11 As shown in FIG. 1 , the control process of the refrigeration maintenance stage in the energy-saving refrigeration mode includes:

[0085] Step 31, in the refrigeration maintenance stage under the energy-saving refrigeration mode, determine whether there is a refrigeration demand in the freezer compartment: if so, execute step 32; otherwise, execute step 33.

[0086] Step 32, control the compressor to start and refrigerate the freezer compartment, but the freezing temperature of the freezer compartment meets the refrigeration demand of the freezer compartment, and then execute step 33.

[0087] Step 33, determine whether there is a refrigeration demand in the refrigerating chamber: if so, execute step 34, otherwise control the compressor to stop. Here, after the compressor is stopped, it will be turned on again when there is a new refrigeration demand.

[0088] In some embodiments, the specific process of cooling the refrigerating chamber in the energy-saving refrigeration mode in step S430 according to the frost layer temperature of the evaporator bin of the refrigerator can be referred to the following exemplary description.

[0089] Combine the following Figure 5 The method of the present invention is a flow chart of an embodiment of cooling the refrigerator compartment according to the frost layer thickness of the evaporator bin of the refrigerator, further illustrating the specific process of cooling the refrigerator compartment according to the frost layer thickness of the evaporator bin of the refrigerator in step S430, including: steps S510 to S530.

[0090] Step S510, in the energy-saving refrigeration mode, determines whether the frost layer temperature of the evaporator bin is less than a set temperature when the compressor of the refrigerator is last shut down. The frost layer temperature of the evaporator bin is specifically the detection temperature T of the defrost sensor of the evaporator bin pre-acquired by the acquisition unit 102.

[0091] Step S520, in the energy-saving refrigeration mode, if it is determined that the frost layer temperature of the evaporator bin is lower than the set temperature, only the refrigeration fan of the freezer compartment is turned on to cool the freezer compartment, and the frost layer of the evaporator is defrosted by the return air temperature of the refrigerator compartment, and the cold energy released by the melting of the frost layer of the evaporator bin is used to cool the refrigerator compartment, until the refrigeration temperature of the refrigerator compartment meets the target refrigeration temperature set for the refrigeration demand of the refrigerator compartment or the frost layer temperature of the evaporator bin is higher than the set temperature, and then returns to redetermine whether there is a new refrigeration demand for the refrigerator compartment, or when it is determined that the freezer compartment has a new refrigeration demand and the freezing temperature of the freezer compartment meets the target freezing temperature set for the refrigeration demand of the freezer compartment.

[0092] Step S530, in the energy-saving refrigeration mode, if it is determined that the frost layer temperature of the evaporator bin is greater than or equal to the set temperature, the compressor of the refrigerator is controlled to start, so as to control the refrigerator to refrigerate the refrigerating chamber, until the refrigerating temperature of the refrigerating chamber meets the target refrigerating temperature set for the refrigerating demand of the refrigerating chamber, and then returns to redetermine whether the refrigerating chamber has a new refrigeration demand when there is no new refrigeration demand in the freezer chamber, or when it is determined that the freezer chamber has a new refrigeration demand and the freezing temperature of the freezer chamber meets the target freezing temperature set for the refrigeration demand of the freezer chamber.

[0093] like Fig.11 As shown, the control process of the refrigeration maintenance stage in the energy-saving refrigeration mode also includes:

[0094] Step 34, obtain the detection temperature T of the defrost sensor of the evaporator when the compressor was shut down last time, and determine whether the detection temperature T of the defrost sensor is less than the set temperature T1: if so, execute step 35, otherwise execute step 36.

[0095] Step 35, only turn on the refrigeration fan of the freezer compartment, and use the cold released by the melting of the frost layer in the evaporator bin to cool the refrigerator compartment until the refrigeration temperature of the refrigerator compartment meets the refrigeration demand of the refrigerator compartment or the detection temperature T of the defrost sensor is greater than the set temperature T1, then return to step 33.

[0096] Step 36, control the compressor to start until the refrigeration temperature of the refrigeration chamber meets the refrigeration demand of the refrigeration chamber, and then return to step 33.

[0097] In this way, in the refrigeration maintenance stage under the energy-saving refrigeration mode, the frost layer of the evaporator cools the cold storage room, and the relatively high temperature air in the cold storage room is used to defrost the evaporator, which can save the energy consumption of the defrost heater in the defrosting stage in the related schemes, and can also reduce or even save the energy consumed by the compressor to cool the cold storage room. During the refrigeration maintenance stage in the energy-saving refrigeration mode, the freezer compartment is refrigerated first until the freezer compartment demand is met, and then the refrigerator compartment is refrigerated. When refrigerating the refrigerator compartment, it is first determined whether there is enough frost layer in the evaporator bin to refrigerate the refrigerator compartment. The thickness of the frost layer in the evaporator bin is determined by the detection temperature T of the defrost sensor. When the detection temperature T of the defrost sensor is lower than the set temperature T1, the cold energy released by the melting of the frost layer in the evaporator bin is used to refrigerate the refrigerator compartment until the refrigeration temperature of the refrigerator compartment reaches the refrigeration demand of the refrigerator compartment or the detection temperature T of the defrost sensor exceeds the set temperature T1. If the refrigeration demand of the refrigerator compartment cannot be met by the cold energy released by the fusion of the frost layer in the evaporator bin, the compressor is additionally used to refrigerate the refrigerator compartment until the refrigeration demand of the refrigerator compartment is met, and then the cycle refrigeration is performed in sequence.

[0098] In the refrigeration maintenance stage of the energy-saving refrigeration mode, the coldness of the evaporator frost layer can be used to refrigerate the refrigerator room, so that the coldness of the freezer room will not flow into the refrigerator room. The refrigeration temperature of the refrigerator room is higher than 0℃ and the frost layer of the evaporator bin is lower than 0℃. The heat exchange can save the energy consumption of defrosting the frost layer of the evaporator bin and save the energy consumption of partial refrigeration of the refrigerator room. Otherwise, the frost layer of the evaporator bin has not melted yet, and the freezing temperature of the freezer room may rise to zero degrees.

[0099] The solution of the present invention is based on installing a one-way valve 20 at the mask air outlet 10 of the freezer compartment of the refrigerator, and develops a new energy-saving mode to reduce energy consumption during defrosting, solve the 3K problem of the freezer compartment (the national standard requires that the temperature fluctuation of the freezer compartment cannot rise by more than 3°C during stable operation, that is, 3K), and reduce the maximum temperature range extreme value of the freezer compartment. The stage in which the refrigerator provides cold air to the cold storage compartment belongs to the return air defrosting stage of the refrigerator. After the cold storage compartment and the freezer compartment can be refrigerated separately, the return air defrosting stage of the refrigerator can continue without affecting the temperature of the freezer compartment. Therefore, the influence of defrosting heating on the temperature of the freezer compartment can be avoided in the return air defrosting stage of the refrigerator. The frost layer of the cold storage compartment and the evaporator bin is exchanged by heat convection through the refrigeration fan. Since the frost layer of the evaporator bin is limited and the temperature difference between the two is small, the frost layer temperature is first used to refrigerate the cold storage compartment, and the subsequent required cold air is provided to the cold storage compartment by the original refrigeration system.

[0100] Among them, in the absence of the prerequisite of independent refrigeration, the return air defrost will suck the cold air from the freezer back, that is, it is not only the air in the refrigerator and the frost layer of the evaporator that can exchange heat, the freezer will also be involved, and the freezer will warm up. Under normal circumstances, the return air defrost takes a maximum of five minutes, and it happens at a specific stage. After independent refrigeration is possible, there is no need to consider the temperature rise of the freezer. Return air defrost refers to using the air in the refrigerator to perform preliminary defrosting on the evaporator, and the wind can also be used to blow away the water hanging on the surface of the evaporator. The heater heating is just heating, static. The frost layer on the evaporator surface in the evaporator compartment. Refers to the heat exchange between the air in the refrigerator and the frost layer on the evaporator.

[0101] By adopting the technical solution of the present embodiment, a one-way valve assembly is provided at the air outlet of the freezer mask so that the freezer mask can only be ventilated in one direction from the evaporator compartment to the freezer chamber. In this way, during the refrigeration process of the refrigerator chamber, the cold air in the freezer chamber cannot be sucked back into the refrigerator chamber, thereby realizing separate refrigeration of the refrigerator chamber and the freezer chamber. When the refrigerator chamber and the freezer chamber can be refrigerated separately, the refrigeration temperatures of the refrigerator chamber and the freezer chamber are controlled separately. Therefore, by providing a one-way valve assembly at the air outlet of the freezer mask, part of the cold air in the freezer chamber is prevented from being sucked into the refrigerator chamber, that is, the cold air in the freezer chamber is prevented from being sucked back into the refrigerator chamber, and the refrigeration temperatures of the refrigerator chamber and the freezer chamber are controlled separately, thereby ensuring the temperature uniformity of the refrigerator during refrigeration.

[0102] According to an embodiment of the present invention, a refrigerator control device corresponding to the refrigerator control method is also provided. Figure 6 The schematic diagram of the structure of an embodiment of the device of the present invention is shown. The refrigerator has an evaporator, a refrigerating chamber and a freezing chamber. A one-way valve assembly (such as a one-way valve 10) is provided at the freezing mask air outlet 10 of the freezing chamber. The one-way valve assembly allows the freezing mask air outlet 10 of the freezing chamber to be ventilated only in one direction from the evaporator compartment of the refrigerator to the freezing chamber, so as to realize separate refrigeration of the refrigerating chamber and the freezing chamber.

[0103] Specifically, the solution of the present invention can be applied to most refrigerators without changing the original structure of the refrigerator, and the one-way valve assembly (such as the one-way valve 20) is installed at the freezer compartment mask air outlet of the freezer compartment in the refrigerator. Figure 7 It is a structural diagram of a one-way valve. Figure 7As shown, the one-way valve 20 can be installed at the freezer mask air outlet 10 of the refrigerator, specifically installed on the outside of the freezer mask air outlet 10, so that the freezer mask is only ventilated in one direction, that is, it can only be ventilated from the evaporator compartment to the freezer, avoiding the lower temperature freezer in the refrigeration of the refrigerator to suck air into the refrigerator, so that the refrigerator and freezer can be refrigerated separately. After the one-way valve 20 is installed at the freezer mask air outlet 10 of the refrigerator, the one-way valve 20 can prevent the freezer from sucking air back when the refrigerator is refrigerated, which can cause large temperature fluctuations in the freezer.

[0104] The solution of the present invention is based on a refrigerator structure in which a one-way valve assembly (such as one-way valve 10) is provided at the freezing mask air outlet 10 of the freezing chamber, and the control device of the refrigerator includes: a control unit.

[0105] The control unit is configured to control the refrigerator to enter a preset preliminary refrigeration stage after the refrigerator is powered on or after the refrigerator is defrosted; wherein the preliminary refrigeration stage is a stage where refrigeration starts after the refrigerator is powered on, or a stage where refrigeration starts after defrosting during the operation of the refrigerator. The specific functions and processing of the control unit refer to step S110.

[0106] The control unit is further configured to control the refrigerator to refrigerate according to the refrigeration requirements of the refrigerating chamber and the freezing chamber during the initial refrigeration stage. The specific functions and processing of the control unit are also shown in step S120.

[0107] In some embodiments, the control unit controls the refrigerator to perform refrigeration according to the refrigeration requirements of the refrigerating chamber and the freezing chamber during the initial refrigeration stage, including:

[0108] The control unit is further configured to determine whether both the refrigerator compartment and the freezer compartment have a refrigeration demand. The initial refrigeration stage is the stage where the refrigerator starts refrigeration after being powered on, or the stage where the refrigerator starts refrigeration after defrosting during operation. The specific functions and processing of the control unit are also referred to step S210.

[0109] The control unit is further configured to, if it is determined that both the refrigerating chamber and the freezing chamber have a refrigeration demand, that is, when both the refrigerating chamber and the freezing chamber have a refrigeration demand, first control the refrigerator to refrigerate the refrigerating chamber, and then control the refrigerator to refrigerate the freezing chamber. Specifically, the refrigerator is first controlled to refrigerate the refrigerating chamber until the refrigerating temperature of the refrigerating chamber reaches the target refrigerating temperature set by the refrigerating demand of the refrigerating chamber, and then the refrigerator is controlled to refrigerate the freezing chamber until the freezing temperature of the freezing chamber reaches the target freezing temperature set by the refrigerating demand of the freezing chamber. Of course, if it is determined that the refrigerating chamber and the freezing chamber do not both have a refrigeration demand, the refrigerator is controlled to refrigerate the compartment with a refrigeration demand until the refrigeration temperature of the compartment reaches the target refrigeration temperature set by the refrigeration demand of the compartment. The specific functions and processing of the control unit are also shown in step S220.

[0110] The control unit is further configured to determine whether the refrigerating chamber has a new refrigeration demand. The specific functions and processing of the control unit are also shown in step S230.

[0111] The control unit is further configured to return to continue to control the refrigerator to refrigerate according to the refrigeration requirements of the refrigeration chamber and the freezer chamber if it is determined that the refrigeration chamber has a new refrigeration requirement, that is, to re-execute the refrigeration control logic when both the refrigeration chamber and the freezer chamber have refrigeration requirements. The specific functions and processing of the control unit are also shown in step S240.

[0112] The control unit is further configured to determine that there is no new refrigeration demand for the refrigerating chamber if it is determined that there is no new refrigeration demand for the refrigerating chamber, so as to control the refrigerator to enter a preset refrigeration maintenance stage when it is determined that there is no refrigeration demand for the refrigerating chamber. That is, if it is determined that there is no new refrigeration demand for the refrigerating chamber, the refrigerator is controlled to enter a preset refrigeration maintenance stage and operate in the preset refrigeration maintenance stage. The refrigeration maintenance stage is a refrigeration maintenance stage in a normal refrigeration mode or a refrigeration maintenance stage in an energy-saving refrigeration mode. The refrigerator structure in which a one-way valve assembly (such as a one-way valve 10) is provided at the freezing mask air outlet 10 of the freezing chamber can operate in a normal refrigeration mode or an energy-saving refrigeration mode, which can be selected according to user needs. Among them, the normal refrigeration mode, that is, the low temperature fluctuation refrigeration mode, can refrigerate normally but not save energy. The energy-saving refrigeration mode, that is, refrigeration under energy-saving conditions, has a refrigeration effect that is not as good as that of the normal refrigeration mode, but is relatively energy-saving. The specific functions and processing of the control unit are also referred to step S250.

[0113] Specifically, Fig. 9 This is a schematic diagram of the control process of the refrigerator in the initial refrigeration stage. Fig. 9As shown in the figure, the control process of the refrigerator in the initial refrigeration stage includes:

[0114] Step 11: When the temperature of the refrigerator compartment and the temperature of the freezer compartment are both high and there is a demand for refrigeration, execute step 12.

[0115] Step 12: refrigerate the refrigerator compartment first until the temperature of the refrigerator compartment reaches the refrigeration requirement of the refrigerator compartment, and then execute step 13.

[0116] Step 13: After the temperature of the refrigerating chamber reaches the refrigeration demand of the refrigerating chamber, refrigerate the freezer chamber until the temperature of the freezer chamber reaches the refrigeration demand of the freezer chamber, and then execute step 14.

[0117] Step 14: After the temperature of the freezer compartment reaches the refrigeration requirement of the freezer compartment, determine whether there is a new refrigeration requirement for the refrigerator compartment: if so, return to step 12; otherwise, execute step 15.

[0118] Step 15: When the temperature of the freezer compartment reaches the refrigeration demand of the freezer compartment and there is no new refrigeration demand in the refrigerator compartment immediately, the refrigeration maintenance stage is entered.

[0119] Among them, the initial refrigeration stage occurs when the refrigerator just starts to refrigerate and when the refrigerator is refrigerated after defrosting. The refrigeration maintenance stage is divided into two modes: low temperature fluctuation refrigeration mode and energy-saving refrigeration mode, which can be selected by the customer according to their needs. Here, the low temperature fluctuation refrigeration mode has a good control effect on temperature fluctuations, but it needs to compensate for power consumption. The energy-saving refrigeration mode is to use the cold energy of the frost layer in the evaporator bin to cool the refrigerator compartment when the refrigerator compartment and the freezer compartment are refrigerated separately. The requirements for the temperature drop speed and fluctuation range of the refrigerator compartment are not very high, and the cold energy of the freezer compartment cannot be taken away.

[0120] The control unit is further configured to control the refrigerator to enter a preset refrigeration maintenance phase after the initial refrigeration phase when there is no new refrigeration demand in the refrigerating chamber. The specific functions and processing of the control unit are also referred to in step S130.

[0121] In some embodiments, the control unit controls the refrigerator to operate in a preset normal refrigeration mode according to the use requirements of the user of the refrigerator during the refrigeration maintenance stage, including:

[0122] The control unit is further configured to determine whether the refrigerating chamber has a new refrigeration demand in the normal refrigeration mode. The specific functions and processing of the control unit are also shown in step S310.

[0123] The control unit is further configured to, in the normal refrigeration mode, if it is determined that the refrigerating chamber has no new refrigeration demand, determine whether the freezer has a new refrigeration demand; if so, return to continue to determine whether the refrigerating chamber has a new refrigeration demand in the normal refrigeration mode. Otherwise, control the compressor of the refrigerator to stop for a first set time. The first set time may be a set time t1. The specific functions and processing of the control unit are also referred to step S320.

[0124] The control unit is further configured to, in the normal refrigeration mode, control the refrigerator to refrigerate the refrigeration chamber until the refrigeration temperature of the refrigeration chamber meets the target refrigeration temperature set by the refrigeration demand of the refrigeration chamber if it is determined that the refrigeration chamber has a new refrigeration demand, specifically, control the compressor of the refrigerator to start, and control the damper of the refrigeration chamber to open, and refrigerate the refrigeration chamber until the refrigeration temperature of the refrigeration chamber meets the target refrigeration temperature set by the refrigeration demand of the refrigeration chamber. The specific functions and processing of the control unit are also shown in step S330.

[0125] The control unit is also specifically configured to determine whether the freezer compartment has a new refrigeration demand within a second set time after the refrigeration temperature of the refrigeration compartment meets the target refrigeration temperature set for the refrigeration demand of the refrigeration compartment in the normal refrigeration mode: if so, the speed of the compressor of the refrigerator is controlled to increase the set gear in a set manner, and then the refrigerator is controlled to refrigerate the freezer compartment, and then return to re-determine whether the refrigeration compartment has a new refrigeration demand in the normal refrigeration mode. Otherwise, the compressor of the refrigerator is controlled to stop for the first set time, and then return to re-determine whether the refrigeration compartment has a new refrigeration demand in the normal refrigeration mode. The second set time may also be the set time t1. For the specific functions and processing of the control unit, please refer to step S340.

[0126] Specifically, Fig.10 This is a schematic diagram of the control flow of the refrigeration maintenance phase of the low temperature fluctuation refrigeration mode.

[0127] like Fig.10 As shown in FIG. 1 , the control process of the refrigeration maintenance phase of the low temperature fluctuation refrigeration mode includes:

[0128] Step 21, in the refrigeration maintenance stage of the low temperature fluctuation refrigeration mode, determine whether there is a refrigeration demand in the refrigeration chamber: if so, execute step 22; otherwise, execute step 23.

[0129] Step 22, control the compressor of the refrigerator to start, open the damper of the refrigerating chamber, and refrigerate the refrigerating chamber, but the refrigerating temperature of the refrigerating chamber meets the refrigeration demand of the refrigerating chamber, and then execute step 24.

[0130] Step 23, determine whether the freezer compartment has a refrigeration demand: if so, return to step 21, otherwise control the compressor to stop for a set time t1, and cool the freezer compartment alone until the freezer compartment shutdown condition is met, and then return to step 21.

[0131] Step 24, determine whether there is a refrigeration demand for the freezer compartment within the set time t1 after the refrigeration of the refrigerator compartment is completed: if so, execute step 25, otherwise control the compressor to stop for the set time t1, and then return to step 21.

[0132] Step 25, control the speed of the compressor to increase by one gear, such as increasing the speed by 30 rpm per minute to the next gear.

[0133] In this way, in the refrigeration maintenance stage of the low temperature fluctuation refrigeration mode, the temperatures of the refrigerator and freezer are used as the first measurement standard. The refrigerator is refrigerated first, and the freezer is refrigerated after the refrigerator reaches the requirement. After the refrigerator is refrigerated, the downtime is required to be greater than the set time t1 in order to better control the temperatures of the two compartments. Otherwise, the speed of the compressor is increased by one level, and then the cycle refrigeration is carried out.

[0134] Among them, in the refrigeration maintenance stage of the low temperature fluctuation refrigeration mode, due to the setting of the one-way valve 20, separate refrigeration of the refrigerator and the freezer is achieved. Combined with the compensation of power consumption, the lower the temperature fluctuation range of each compartment, the better the food preservation effect, and the better the food can be controlled within the optimal control range.

[0135] The control unit is further configured to control the refrigerator to operate in a preset normal refrigeration mode or a preset energy-saving refrigeration mode according to the user's use requirements of the refrigerator during the refrigeration maintenance phase. The specific functions and processing of the control unit are also referred to in step S140.

[0136] Specifically, Figure 8 The flowchart is a flow chart for distinguishing the control modes of a refrigerator based on the basic structure of setting a one-way valve at the air outlet of the freezer compartment mask of the freezer compartment. Figure 8 As shown, based on Figure 7 The structure shown in which a one-way valve 20 is installed at the mask air outlet 10 of the freezer compartment of the refrigerator can develop two refrigeration modes (i.e., two temperature control modes), namely, a low-temperature fluctuation refrigeration mode and an energy-saving refrigeration mode.

[0137] In the low-temperature fluctuation refrigeration mode, the air outlet of the freezer is one-way, which prevents the freezer from sucking air back into the refrigerator, increases the temperature recovery time of the freezer, and achieves precise temperature control of the refrigerator and freezer with the compartment temperature as the first indicator. This temperature control mode is a more stable low-temperature fluctuation refrigeration mode, which can avoid large fluctuations in the freezing temperature of the freezer when there is also a cooling demand in the refrigerator, and solves the problem of uneven temperature during the refrigerator refrigeration period.

[0138] In the energy-saving refrigeration mode, the temperature of the refrigerator compartment is used alone to defrost the frost layer of the evaporator bin, so as to save the energy consumption of the defrost heater. The cold released by the melting of the frost layer of the evaporator bin can also provide coldness for the refrigerator compartment, further saving energy consumption. This temperature control mode is an energy-saving refrigeration mode. The coldness during defrosting is used to cool the refrigerator compartment, which can reduce the heating energy consumption during defrosting and the energy consumption of the refrigerator compressor. In this way, under the premise that the refrigerator compartment and the freezer can be refrigerated independently, the high efficiency of the return air defrosting of the refrigerator compartment is guaranteed. Only the temperature of the refrigerator compartment is used to defrost the evaporator frost layer, and the coldness of the frost layer is used to cool the refrigerator compartment, which solves the problem of waste of defrosting coldness when using the return air of the refrigerator compartment for defrosting.

[0139] In the actual use of refrigerators, customers have various needs, sometimes requiring efficient refrigeration, and sometimes requiring a precise temperature control mode. The solution of the present invention provides two control modes based on a refrigerator structure, one is a low temperature fluctuation refrigeration mode, and the other is a low power consumption mode (i.e., energy-saving refrigeration mode), so as to meet different requirements of customers under different conditions. In this way, based on the independent refrigeration of the refrigerating chamber and the freezing chamber formed by installing a one-way valve 20 at the mask air outlet 10 of the freezer chamber of the refrigerator, the temperature control of the refrigerating chamber is realized in a precise temperature control mode with precise temperature control. In the precise temperature control mode, the independent refrigeration is realized by the structure of the one-way valve to ensure that the refrigeration of the refrigerating chamber does not affect the refrigeration of the freezing chamber, so as to realize precise temperature control.

[0140] The solution of the present invention provides a refrigerator structure and a control device based on the refrigerator structure. Through the refrigerator structure, the refrigerator compartment and the freezer compartment can be refrigerated separately, so that the temperature control of the refrigerator compartment and the freezer compartment is more accurate and easy to control. Based on the fact that the refrigerator compartment can be refrigerated separately, the refrigeration temperature of the refrigerator compartment and the freezer compartment of the refrigerator is controlled through a new temperature control mode. Among them, the new temperature control mode can specifically include two temperature control modes. One temperature control mode is a normal refrigeration mode (i.e., a low temperature fluctuation refrigeration mode). In the normal refrigeration mode (i.e., a low temperature fluctuation refrigeration mode), the temperature control is more accurate and the temperature fluctuation is low. It can avoid the large fluctuation of the freezing temperature of the freezer compartment when there is also a refrigeration demand in the refrigerator compartment, and solve the problem of uneven temperature during the refrigeration of the refrigerator. Another temperature control mode (i.e., energy-saving refrigeration mode) is that the evaporator of the refrigerator provides cold energy to the refrigerator compartment, and uses the temperature of the refrigerator compartment when it is higher than 0°C for defrosting, avoiding the waste of defrosting cold energy, and solving the problem of waste of defrosting cold energy when using the return air of the refrigerator compartment for defrosting.

[0141] In some embodiments, the control unit controls the refrigerator to operate a preset energy-saving refrigeration mode according to the use requirements of the user of the refrigerator during the refrigeration maintenance stage, including:

[0142] The control unit is further configured to determine whether the freezer compartment has a new refrigeration demand in the energy-saving refrigeration mode. The specific functions and processing of the control unit are also shown in step S410.

[0143] The control unit is further configured to, in the energy-saving refrigeration mode, control the refrigerator to refrigerate the freezer compartment until the freezing temperature of the freezer compartment meets the target freezing temperature set by the refrigeration demand of the freezer compartment if it is determined that the freezer compartment has a new refrigeration demand. Specifically, the compressor of the refrigerator is controlled to start and refrigerate the freezer compartment until the freezing temperature of the freezer compartment meets the target freezing temperature set by the refrigeration demand of the freezer compartment. The specific functions and processing of the control unit are also shown in step S420.

[0144] The control unit is further configured to, in the energy-saving refrigeration mode, determine whether the refrigerator compartment has a new refrigeration demand if it is determined that the freezer compartment has no new refrigeration demand, or after it is determined that the freezer compartment has a new refrigeration demand and the freezing temperature of the freezer compartment meets the target freezing temperature set for the refrigeration demand of the freezer compartment: if so, refrigerate the refrigerator compartment according to the frost layer temperature of the evaporator bin of the refrigerator. Otherwise, control the compressor of the refrigerator to stop. The specific functions and processing of the control unit are also shown in step S430.

[0145] Specifically, Fig.11The following is a control flow diagram of the cooling maintenance phase in the energy-saving cooling mode. Fig.11 As shown in FIG. 1 , the control process of the refrigeration maintenance stage in the energy-saving refrigeration mode includes:

[0146] Step 31, in the refrigeration maintenance stage under the energy-saving refrigeration mode, determine whether there is a refrigeration demand in the freezer compartment: if so, execute step 32; otherwise, execute step 33.

[0147] Step 32, control the compressor to start and refrigerate the freezer compartment, but the freezing temperature of the freezer compartment meets the refrigeration demand of the freezer compartment, and then execute step 33.

[0148] Step 33, determine whether there is a refrigeration demand in the refrigerating chamber: if so, execute step 34, otherwise control the compressor to stop.

[0149] In some embodiments, the control unit, in the energy-saving refrigeration mode, refrigerates the refrigerating chamber according to the frost layer temperature of the evaporator bin of the refrigerator, including:

[0150] The control unit is further configured to determine, in the energy-saving refrigeration mode, whether the frost layer temperature of the evaporator bin is less than a set temperature when the compressor of the refrigerator was last stopped. The frost layer temperature of the evaporator bin is specifically the detection temperature T of the defrost sensor of the evaporator bin. The specific functions and processing of the control unit are also referred to step S510.

[0151] The control unit is further configured to, in the energy-saving refrigeration mode, if it is determined that the frost layer temperature of the evaporator bin is less than the set temperature, only turn on the refrigeration fan of the freezer compartment to refrigerate the freezer compartment, use the return air temperature of the refrigeration compartment to defrost the frost layer of the evaporator, and use the cold released by the melting of the frost layer of the evaporator bin to refrigerate the refrigeration compartment, until the refrigeration temperature of the refrigeration compartment meets the target refrigeration temperature set for the refrigeration demand of the refrigeration compartment or the frost layer temperature of the evaporator bin is greater than the set temperature, and then return to re-determine whether the refrigeration compartment has a new refrigeration demand when it is determined that the refrigeration compartment has a new refrigeration demand and the freezing temperature of the freezer compartment meets the target freezing temperature set for the refrigeration demand of the freezer compartment. The specific functions and processing of the control unit are also shown in step S520.

[0152] The control unit is further configured to control the compressor of the refrigerator to start in the energy-saving refrigeration mode, if it is determined that the frost layer temperature of the evaporator bin is greater than or equal to the set temperature, so as to control the refrigerator to refrigerate the refrigerating chamber until the refrigerating temperature of the refrigerating chamber meets the target refrigerating temperature set by the refrigerating demand of the refrigerating chamber, and then return to re-determine whether the refrigerating chamber has a new refrigeration demand when there is no new refrigeration demand in the freezing chamber, or when it is determined that the freezing chamber has a new refrigeration demand and the freezing temperature of the freezing chamber meets the target freezing temperature set by the refrigerating demand of the freezing chamber. The specific functions and processing of the control unit are also shown in step S530.

[0153] like Fig.11 As shown, the control process of the refrigeration maintenance stage in the energy-saving refrigeration mode also includes:

[0154] Step 34, obtain the detection temperature T of the defrost sensor of the evaporator when the compressor was shut down last time, and determine whether the detection temperature T of the defrost sensor is less than the set temperature T1: if so, execute step 35, otherwise execute step 36.

[0155] Step 35, only turn on the refrigeration fan of the freezer compartment, and use the cold released by the melting of the frost layer in the evaporator bin to cool the refrigerator compartment until the refrigeration temperature of the refrigerator compartment meets the refrigeration demand of the refrigerator compartment or the detection temperature T of the defrost sensor is greater than the set temperature T1, then return to step 33.

[0156] Step 36, control the compressor to start until the refrigeration temperature of the refrigeration chamber meets the refrigeration demand of the refrigeration chamber, and then return to step 33.

[0157] In this way, in the refrigeration maintenance stage under the energy-saving refrigeration mode, the frost layer of the evaporator cools the cold storage room, and the relatively high temperature air in the cold storage room is used to defrost the evaporator, which can save the energy consumption of the defrost heater in the defrosting stage in the related schemes, and can also reduce or even save the energy consumed by the compressor to cool the cold storage room. During the refrigeration maintenance stage in the energy-saving refrigeration mode, the freezer compartment is refrigerated first until the freezer compartment demand is met, and then the refrigerator compartment is refrigerated. When refrigerating the refrigerator compartment, it is first determined whether there is enough frost layer in the evaporator bin to refrigerate the refrigerator compartment. The thickness of the frost layer in the evaporator bin is determined by the detection temperature T of the defrost sensor. When the detection temperature T of the defrost sensor is lower than the set temperature T1, the cold energy released by the melting of the frost layer in the evaporator bin is used to refrigerate the refrigerator compartment until the refrigeration temperature of the refrigerator compartment reaches the refrigeration demand of the refrigerator compartment or the detection temperature T of the defrost sensor exceeds the set temperature T1. If the refrigeration demand of the refrigerator compartment cannot be met by the cold energy released by the fusion of the frost layer in the evaporator bin, the compressor is additionally used to refrigerate the refrigerator compartment until the refrigeration demand of the refrigerator compartment is met, and then the cycle refrigeration is performed in sequence.

[0158] In the refrigeration maintenance stage of the energy-saving refrigeration mode, the coldness of the evaporator frost layer can be used to refrigerate the refrigerator room, so that the coldness of the freezer room will not flow into the refrigerator room. The refrigeration temperature of the refrigerator room is higher than 0℃ and the frost layer of the evaporator bin is lower than 0℃. The heat exchange can save the energy consumption of defrosting the frost layer of the evaporator bin and save the energy consumption of partial refrigeration of the refrigerator room. Otherwise, the frost layer of the evaporator bin has not melted yet, and the freezing temperature of the freezer room may rise to zero degrees.

[0159] The solution of the present invention is based on installing a one-way valve 20 at the mask air outlet 10 of the freezer compartment of the refrigerator, and develops a new energy-saving mode to reduce energy consumption during defrosting, solve the 3K problem of the freezer compartment, and reduce the maximum fluctuation temperature range extreme value of the freezer compartment. The stage in which the refrigerator provides cold air to the refrigerating chamber belongs to the return air defrosting stage of the refrigerator. After the refrigerating chamber and the freezer compartment can be refrigerated separately, the return air defrosting stage of the refrigerator can continue without affecting the temperature of the freezer compartment. Therefore, the influence of defrosting heating on the temperature of the freezer compartment can be avoided in the return air defrosting stage of the refrigerator. The frost layer of the refrigerating chamber and the evaporator bin is exchanged by heat convection through the refrigeration fan. Since the frost layer of the evaporator bin is limited and the temperature difference between the two is small, the frost layer temperature is first used to cool the refrigerating chamber, and the subsequent required cold air is provided to the refrigerating chamber by the original refrigeration system.

[0160] Since the processing and functions implemented by the device of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0161] By adopting the technical solution of the present invention, a one-way valve assembly is arranged at the air outlet of the freezer mask, so that the freezer mask can only be ventilated in one direction from the evaporator bin to the freezer chamber. In this way, during the refrigeration process of the refrigerator chamber, the cold air in the freezer chamber cannot be sucked back into the refrigerator chamber, thereby realizing independent refrigeration of the refrigerator chamber and the freezer chamber. In the case that the refrigerator chamber and the freezer chamber can be refrigerated independently, the refrigeration temperatures of the refrigerator chamber and the freezer chamber are controlled independently, and the temperature control of the refrigerator chamber is realized in a precise temperature control mode. In the precise temperature control mode, independent refrigeration is realized with the structure of the one-way valve to ensure that the refrigeration of the freezer chamber is not affected by the refrigeration of the refrigerator chamber, so as to realize precise temperature control.

[0162] According to an embodiment of the present invention, a refrigerator corresponding to the control device of the refrigerator is also provided. The refrigerator may include: the control device of the refrigerator described above.

[0163] Since the processing and functions implemented by the refrigerator of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned devices, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0164] By adopting the technical solution of the present invention, a one-way valve assembly is arranged at the air outlet of the freezer mask, so that the freezer mask can only be ventilated in one direction from the evaporator compartment to the freezer chamber. In this way, during the refrigeration process of the refrigerator chamber, the cold energy of the freezer chamber cannot be sucked back into the refrigerator chamber, thereby realizing separate refrigeration of the refrigerator chamber and the freezer chamber. When the refrigerator chamber and the freezer chamber can be refrigerated separately, the refrigeration temperatures of the refrigerator chamber and the freezer chamber are controlled separately, and defrosting is performed when the temperature of the refrigerator chamber is higher than 0°C, thereby avoiding waste of defrosting cold energy and solving the problem of waste of defrosting cold energy when using the return air of the refrigerator chamber for defrosting.

[0165] According to an embodiment of the present invention, a storage medium corresponding to a refrigerator control method is also provided, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the refrigerator control method described above.

[0166] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0167] By adopting the technical solution of the present invention, a one-way valve assembly is arranged at the air outlet of the freezer mask, so that the freezer mask can only be ventilated in one direction from the evaporator compartment to the freezer chamber. In this way, during the refrigeration process of the refrigerator chamber, the cold air in the freezer chamber cannot be sucked back into the refrigerator chamber, thereby realizing separate refrigeration of the refrigerator chamber and the freezer chamber. In addition, when the refrigerator chamber and the freezer chamber can be refrigerated separately, the refrigeration temperatures of the refrigerator chamber and the freezer chamber can be controlled separately, which can avoid large fluctuations in the freezing temperature of the freezer chamber when there is a refrigeration demand for the refrigerator chamber, thereby solving the problem of uneven temperature during refrigeration of the refrigerator.

[0168] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0169] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A refrigerator control method, characterized in that: The refrigerator comprises a refrigerating chamber and a freezing chamber; a one-way valve assembly is arranged at the freezing mask air outlet (10) of the freezing chamber; the one-way valve assembly enables the freezing mask air outlet (10) of the freezing chamber to be ventilated only in one direction from the evaporator bin of the refrigerator to the freezing chamber; The refrigerator control method comprises: After the refrigerator is powered on or after the refrigerator is defrosted, the refrigerator is controlled to enter a preset preliminary refrigeration stage; wherein the preliminary refrigeration stage is a stage where refrigeration starts after the refrigerator is powered on, or a stage where refrigeration starts after defrosting during the operation of the refrigerator; In the preliminary refrigeration stage, the refrigerator is controlled to refrigerate according to the refrigeration requirements of the refrigerating chamber and the freezing chamber; in the preliminary refrigeration stage, the refrigerator is controlled to refrigerate according to the refrigeration requirements of the refrigerating chamber and the freezing chamber, including: determining whether both the refrigerating chamber and the freezing chamber have refrigeration requirements; if it is determined that both the refrigerating chamber and the freezing chamber have refrigeration requirements, first controlling the refrigerator to refrigerate the refrigerating chamber, and then controlling the refrigerator to refrigerate the freezing chamber; determining whether the refrigerating chamber has a new refrigeration requirement; if it is determined that the refrigerating chamber has a new refrigeration requirement, returning to continue to control the refrigerator to refrigerate according to the refrigeration requirements of the refrigerating chamber and the freezing chamber; if it is determined that the refrigerating chamber has no new refrigeration requirement, determining that the refrigerating chamber has no refrigeration requirement; When there is no new refrigeration demand in the refrigerating chamber, the refrigerator is controlled to enter a preset refrigeration maintenance stage; the refrigeration maintenance stage is a refrigeration maintenance stage in a normal refrigeration mode or a refrigeration maintenance stage in an energy-saving refrigeration mode; In the refrigeration maintenance stage, according to the usage requirements of the user of the refrigerator, the refrigerator is controlled to run a preset normal refrigeration mode, or the refrigerator is controlled to run a preset energy-saving refrigeration mode; wherein the normal refrigeration mode, i.e., a low temperature fluctuation refrigeration mode, can perform normal refrigeration but does not save energy; the energy-saving refrigeration mode, i.e., refrigeration under energy-saving conditions, has a refrigeration effect that is not as good as that of the normal refrigeration mode, but is relatively energy-saving.

2. The refrigerator control method according to claim 1, characterized in that: In the refrigeration maintenance stage, according to the use requirements of the user of the refrigerator, the refrigerator is controlled to operate in a preset normal refrigeration mode, including: In the normal refrigeration mode, determining whether the refrigerating chamber has a new refrigeration demand; If it is determined that the refrigerator compartment has no new refrigeration demand, determine whether the freezer compartment has a new refrigeration demand; if so, return to continue determining whether the refrigerator compartment has a new refrigeration demand in the normal refrigeration mode; otherwise, control the compressor of the refrigerator to stop for a first set time; If it is determined that the refrigerating chamber has a new refrigeration demand, controlling the refrigerator to refrigerate the refrigerating chamber until the refrigerating temperature of the refrigerating chamber meets the target refrigerating temperature set by the refrigerating demand of the refrigerating chamber; Within a second set time after the refrigerating chamber has a new refrigeration demand and the refrigerating temperature of the refrigerating chamber meets the target refrigerating temperature set for the refrigerating chamber, determine whether the freezer chamber has a new refrigeration demand: if so, control the speed of the compressor of the refrigerator to increase to a set gear in a set manner, and then control the refrigerator to cool the freezer chamber; otherwise, control the compressor of the refrigerator to stop for the first set time.

3. The refrigerator control method according to any one of claims 1 to 2, characterized in that: In the refrigeration maintenance stage, according to the use requirements of the user of the refrigerator, the refrigerator is controlled to operate in a preset energy-saving refrigeration mode, including: In the energy-saving refrigeration mode, determining whether there is a new refrigeration demand for the freezer compartment; If it is determined that the freezer compartment has a new refrigeration demand, the refrigerator is controlled to refrigerate the freezer compartment until the freezing temperature of the freezer compartment meets the target freezing temperature set by the refrigeration demand of the freezer compartment; If it is determined that there is no new refrigeration demand for the freezer compartment, or after it is determined that there is a new refrigeration demand for the freezer compartment and the freezing temperature of the freezer compartment meets the target freezing temperature set for the refrigeration demand of the freezer compartment, determine whether there is a new refrigeration demand for the refrigerator compartment: if so, cool the refrigerator compartment according to the frost layer temperature of the evaporator bin of the refrigerator; otherwise, control the compressor of the refrigerator to shut down.

4. The refrigerator control method according to claim 3, characterized in that: Refrigerating the refrigerating chamber according to the frost layer temperature of the evaporator bin of the refrigerator, comprising: Determine whether the frost layer temperature of the evaporator bin is less than a set temperature when the compressor of the refrigerator is stopped last time; If it is determined that the frost layer temperature of the evaporator bin is lower than the set temperature, only the refrigeration fan of the freezer compartment is turned on to refrigerate the freezer compartment, the frost layer of the evaporator is defrosted using the return air temperature of the refrigerator compartment, and the cold energy released by the melting of the frost layer of the evaporator bin is used to refrigerate the refrigerator compartment until the refrigeration temperature of the refrigerator compartment meets the target refrigeration temperature set by the refrigeration demand of the refrigerator compartment or the frost layer temperature of the evaporator bin is higher than the set temperature; If it is determined that the frost layer temperature of the evaporator bin is greater than or equal to the set temperature, the refrigerator is controlled to refrigerate the refrigerating chamber until the refrigerating temperature of the refrigerating chamber meets the target refrigerating temperature set by the refrigerating demand of the refrigerating chamber.

5. A refrigerator control device, characterized in that: The refrigerator comprises a refrigerating chamber and a freezing chamber; a one-way valve assembly is arranged at the freezing mask air outlet (10) of the freezing chamber; the one-way valve assembly enables the freezing mask air outlet (10) of the freezing chamber to be ventilated only in one direction from the evaporator bin of the refrigerator to the freezing chamber; The control device of the refrigerator comprises: A control unit is configured to control the refrigerator to enter a preset preliminary refrigeration stage after the refrigerator is powered on or after the refrigerator is defrosted; wherein the preliminary refrigeration stage is a stage where refrigeration starts after the refrigerator is powered on, or a stage where refrigeration starts after defrosting during the operation of the refrigerator; The control unit is further configured to control the refrigerator to perform refrigeration according to the refrigeration requirements of the refrigerating chamber and the freezing chamber in the preliminary refrigeration stage; the control unit controls the refrigerator to perform refrigeration according to the refrigeration requirements of the refrigerating chamber and the freezing chamber in the preliminary refrigeration stage, including: determining whether both the refrigerating chamber and the freezing chamber have refrigeration requirements; if it is determined that both the refrigerating chamber and the freezing chamber have refrigeration requirements, first controlling the refrigerator to refrigerate the refrigerating chamber, and then controlling the refrigerator to refrigerate the freezing chamber; determining whether the refrigerating chamber has a new refrigeration requirement; if it is determined that the refrigerating chamber has a new refrigeration requirement, returning to continue to control the refrigerator to perform refrigeration according to the refrigeration requirements of the refrigerating chamber and the freezing chamber; if it is determined that the refrigerating chamber has no new refrigeration requirement, determining that the refrigerating chamber has no refrigeration requirement; The control unit is further configured to control the refrigerator to enter a preset refrigeration maintenance stage when there is no new refrigeration demand in the refrigerating chamber; the refrigeration maintenance stage is a refrigeration maintenance stage in a normal refrigeration mode or a refrigeration maintenance stage in an energy-saving refrigeration mode; The control unit is further configured to, during the refrigeration maintenance stage, control the refrigerator to operate in a preset normal refrigeration mode, or control the refrigerator to operate in a preset energy-saving refrigeration mode according to the usage requirements of the user of the refrigerator; wherein the normal refrigeration mode, i.e., a low temperature fluctuation refrigeration mode, can perform normal refrigeration but is not energy-saving; the energy-saving refrigeration mode, i.e., refrigeration under energy-saving conditions, has a refrigeration effect that is not as good as that of the normal refrigeration mode, but is relatively energy-saving.

6. The refrigerator control device according to claim 5, characterized in that: The control unit, in the refrigeration maintenance stage, controls the refrigerator to operate in a preset normal refrigeration mode according to the use requirements of the user of the refrigerator, including: In the normal refrigeration mode, determining whether the refrigerating chamber has a new refrigeration demand; If it is determined that the refrigerator compartment has no new refrigeration demand, determine whether the freezer compartment has a new refrigeration demand; if so, return to continue determining whether the refrigerator compartment has a new refrigeration demand in the normal refrigeration mode; otherwise, control the compressor of the refrigerator to stop for a first set time; If it is determined that the refrigerating chamber has a new refrigeration demand, controlling the refrigerator to refrigerate the refrigerating chamber until the refrigerating temperature of the refrigerating chamber meets the target refrigerating temperature set by the refrigerating demand of the refrigerating chamber; Within a second set time after the refrigerating chamber has a new refrigeration demand and the refrigerating temperature of the refrigerating chamber meets the target refrigerating temperature set for the refrigerating chamber, determine whether the freezer chamber has a new refrigeration demand: if so, control the speed of the compressor of the refrigerator to increase to a set gear in a set manner, and then control the refrigerator to cool the freezer chamber; otherwise, control the compressor of the refrigerator to stop for the first set time.

7. The control device for a refrigerator according to any one of claims 5 to 6, characterized in that: The control unit controls the refrigerator to operate a preset energy-saving refrigeration mode according to the use requirements of the user of the refrigerator during the refrigeration maintenance stage, including: In the energy-saving refrigeration mode, determining whether there is a new refrigeration demand for the freezer compartment; If it is determined that the freezer compartment has a new refrigeration demand, the refrigerator is controlled to refrigerate the freezer compartment until the freezing temperature of the freezer compartment meets the target freezing temperature set by the refrigeration demand of the freezer compartment; If it is determined that there is no new refrigeration demand for the freezer compartment, or after it is determined that there is a new refrigeration demand for the freezer compartment and the freezing temperature of the freezer compartment meets the target freezing temperature set for the refrigeration demand of the freezer compartment, determine whether there is a new refrigeration demand for the refrigerator compartment: if so, cool the refrigerator compartment according to the frost layer temperature of the evaporator bin of the refrigerator; otherwise, control the compressor of the refrigerator to shut down.

8. The refrigerator control device according to claim 7, characterized in that: The control unit cools the refrigerating chamber according to the frost layer temperature of the evaporator bin of the refrigerator, comprising: Determine whether the frost layer temperature of the evaporator bin is less than a set temperature when the compressor of the refrigerator is stopped last time; If it is determined that the frost layer temperature of the evaporator bin is lower than the set temperature, only the refrigeration fan of the freezer compartment is turned on to refrigerate the freezer compartment, the frost layer of the evaporator is defrosted using the return air temperature of the refrigerator compartment, and the cold energy released by the melting of the frost layer of the evaporator bin is used to refrigerate the refrigerator compartment until the refrigeration temperature of the refrigerator compartment meets the target refrigeration temperature set by the refrigeration demand of the refrigerator compartment or the frost layer temperature of the evaporator bin is higher than the set temperature; If it is determined that the frost layer temperature of the evaporator bin is greater than or equal to the set temperature, the refrigerator is controlled to refrigerate the refrigerating chamber until the refrigerating temperature of the refrigerating chamber meets the target refrigerating temperature set by the refrigerating demand of the refrigerating chamber.

9. A refrigerator, characterized in that: include: A control device for a refrigerator as claimed in any one of claims 5 to 8.

10. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the refrigerator control method according to any one of claims 1 to 4.

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