Refrigerator, refrigerator control method and storage medium

Abstract

The embodiment of the invention belongs to the technical field of household appliances, and provides a refrigerator, a refrigerator control method and a storage medium. An outlet of the compressor communicates with the condenser and communicates with the second evaporator through a first pipeline, part of the first pipeline is arranged among the multiple layers of fins of the first evaporator in a penetrating mode, and a first electric valve is arranged between the compressor and the condenser and between the compressor and the second evaporator. The condenser is communicated with the first evaporator and the second evaporator, and a second electric valve is arranged between the condenser and the first evaporator and between the condenser and the second evaporator. The control assembly is configured to disconnect the second pipeline and the third pipeline through the second electric valve when it is determined that the defrosting mode is started, control a refrigerant flowing out of the compressor to flow to the second evaporator along the first pipeline through the first electric valve, and then determine that the compressor operates at the target rotating speed according to the temperature value of the environment where the refrigerator is located. And countercurrent defrosting of the refrigerator is achieved, and energy consumption is reduced.

Description

Technical Field

[0001] Embodiments of the present application relate to the technical field of household appliances. More specifically, the present application relates to a refrigerator, a control method for the refrigerator, and a storage medium. Background Art

[0002] When the refrigerator is refrigerating, moisture in the circulating air will frost on the evaporator and the connecting pipeline. Most of the frosting occurs on the evaporator, and the frosting of the evaporator will affect the refrigeration efficiency of the refrigerator.

[0003] Currently, an electric heating wire can be arranged near the evaporator to melt the frost layer on the evaporator through the electric heating wire. However, defrosting by means of the electric heating wire results in high energy consumption of the refrigerator. Summary of the Invention

[0004] Embodiments of the present application provide a refrigerator, a control method for the refrigerator, and a storage medium, which can be used to solve the problem of high energy consumption of the refrigerator caused by defrosting in the related art.

[0005] In a first aspect, embodiments of the present application provide a refrigerator, which includes:

[0006] A box body provided with a refrigerating chamber and a freezing chamber;

[0007] A refrigeration system disposed in the box body, including: a compressor, a condenser, a first evaporator for providing cooling capacity for the freezing chamber, and a second evaporator for providing cooling capacity for the refrigerating chamber;

[0008] Wherein, an outlet of the compressor is respectively communicated with the condenser and the second evaporator through a first pipeline, and a part of the pipeline in the first pipeline is interposed between multiple fins of the first evaporator; a first electric valve is arranged between the compressor and the condenser and the second evaporator, and the first electric valve is configured to: when the refrigeration system is in a defrosting mode, control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator;

[0009] The condenser is communicated with the first evaporator and the second evaporator, and a second electric valve is arranged between the condenser and the first evaporator and the second evaporator, and the second electric valve is configured to: when the refrigeration system is in a defrosting mode, control the refrigerant flowing out of the condenser to flow to a second pipeline of the first evaporator and a third pipeline of the second evaporator;

[0010] The refrigerator further includes: a control component electrically connected to the first electric valve and the second electric valve respectively, and configured to:

[0011] When it is determined to start the defrosting mode, disconnect the second pipeline and the third pipeline through the second electric valve;

[0012] Through the first electric valve, control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator;

[0013] Obtain the temperature value of the environment where the refrigerator is located;

[0014] According to the temperature value, determine the target speed of the compressor;

[0015] Control the compressor to start and operate at the target speed.

[0016] In this embodiment, the refrigerator includes a refrigeration system and a control component disposed in the box body. The refrigeration system includes a compressor, a condenser, a first evaporator that provides cooling capacity for the freezer compartment, and a second evaporator that provides cooling capacity for the refrigerating compartment. Among them, the outlet of the compressor is respectively communicated with the condenser and is communicated with the second evaporator through the first pipeline. Part of the pipeline in the first pipeline is arranged between multiple fins of the first evaporator. A first electric valve is arranged between the compressor and the condenser and the second evaporator. The first electric valve is configured to control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator when the refrigeration system is in the defrosting mode. The condenser is communicated with the first evaporator and the second evaporator. A second electric valve is arranged between the condenser and the first evaporator and the second evaporator. The second electric valve is configured to control the refrigerant flowing out of the condenser to flow to the second pipeline of the first evaporator and the third pipeline of the second evaporator when the refrigeration system is in the defrosting mode. The control component is configured to, when it is determined to start the defrosting mode, disconnect the second pipeline and the third pipeline through the second electric valve, and through the first electric valve, control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator, and then determine that the compressor operates at the target speed according to the temperature value of the environment where the refrigerator is located, so that the refrigerator realizes reverse-flow defrosting and saves energy consumption.

[0017] In some embodiments of the present application, the control component is configured to:

[0018] Judge whether the temperature value is above a preset temperature value;

[0019] If so, determine that the target speed is the first speed;

[0020] If not, determine that the target speed is the second speed, and the second speed is greater than the first speed.

[0021] In this embodiment, the speed of the compressor can be determined according to the temperature value of the environment where the refrigerator is located to improve the reverse-flow defrosting efficiency.

[0022] In some embodiments of the present application, the control component is configured to:

[0023] When it is determined to start the defrosting mode, after opening the second pipeline and the third pipeline through the second electric valve for a first preset duration, disconnect the second pipeline and the third pipeline.

[0024] In this embodiment, before entering defrosting, the second pipeline and the third pipeline can be opened for a period of time first, and then these two pipelines are disconnected, so that the refrigerant in the pipeline between the condenser and the two evaporators flows to the two evaporators, avoiding the retention of refrigerant in this pipeline and affecting the subsequent refrigeration effect.

[0025] In some embodiments of the present application, the control component is configured to:

[0026] If the temperature value is above the preset temperature value, control the compressor to operate at the first rotation speed for a second preset duration;

[0027] Adjust the rotation speed of the compressor to the second rotation speed, and control the compressor to continue to operate at the second rotation speed until the end of this defrosting.

[0028] In this embodiment, if the temperature of the environment where the refrigerator is located is relatively high, the compressor can be controlled to operate at a lower rotation speed for a period of time, and then the rotation speed of the compressor is increased until the end of defrosting, so that the refrigerant in the pipeline between the condenser flowing to the two evaporators and the two evaporators can have sufficient time to evaporate, avoiding the flow of liquid refrigerant to the compressor and affecting the function of the compressor.

[0029] In some embodiments of the present application, the control component is configured to:

[0030] At the end of this defrosting, control the refrigerant in the first pipeline to flow to the condenser through the first electric valve;

[0031] Through the first electric valve, control the refrigerant flowing out of the compressor to flow to the condenser;

[0032] Through the second electric valve, open the second pipeline and the third pipeline;

[0033] Control the refrigeration system to enter the refrigeration mode.

[0034] In this embodiment, after defrosting, the refrigerant in the first pipeline can be controlled to flow to the condenser through two electric valves first, and the second pipeline and the third pipeline are opened to achieve normal refrigeration.

[0035] In some embodiments of the present application, the control component is configured to:

[0036] When it is determined to turn on the refrigeration mode, the refrigerant flowing out of the compressor is controlled by the first electric valve to flow to the condenser;

[0037] The second pipeline and the third pipeline are opened through the second electric valve.

[0038] In this embodiment, before entering the refrigeration mode, the forward flow of the refrigerant can be controlled by two electric valves to achieve refrigeration.

[0039] In some embodiments of the present application, a freezing capillary is provided on the second pipeline; a refrigerating capillary is provided on the third pipeline.

[0040] In this embodiment, setting capillaries on the second pipeline and the third pipeline can achieve throttling and pressure reduction.

[0041] In some embodiments of the present application, a defrosting capillary is provided between the outlet of a part of the pipeline in the first pipeline and the second evaporator.

[0042] In this embodiment, before the refrigerant enters the second evaporator, it is throttled and depressurized through the capillary, changing from a high-temperature and high-pressure refrigerant to a low-temperature and low-pressure liquid state, so that it can vaporize and absorb heat in the evaporator.

[0043] In a second aspect, the present application provides a control method for a refrigerator, and the refrigerator includes:

[0044] A box body provided with a refrigerating chamber and a freezing chamber;

[0045] A refrigeration system provided in the box body, including: a compressor, a condenser, a first evaporator providing cold for the freezing chamber, and a second evaporator providing cold for the refrigerating chamber;

[0046] Wherein, the outlet of the compressor is respectively communicated with the condenser and the second evaporator through a first pipeline, and a part of the pipeline in the first pipeline is interspersed between multiple fins of the first evaporator; a first electric valve is provided between the compressor and the condenser and the second evaporator, and the first electric valve is configured to: when the refrigeration system is in the defrosting mode, control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator;

[0047] The condenser is communicated with the first evaporator and the second evaporator, and a second electric valve is provided between the condenser and the first evaporator and the second evaporator, and the second electric valve is configured to: when the refrigeration system is in the defrosting mode, control the refrigerant flowing out of the condenser to flow to the second pipeline of the first evaporator and the third pipeline of the second evaporator;

[0048] The method includes:

[0049] When it is determined to start the defrosting mode, disconnect the second pipeline and the third pipeline through the second electric valve;

[0050] Control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator through the first electric valve;

[0051] Obtain the temperature value of the environment where the refrigerator is located;

[0052] Determine the target speed of the compressor according to the temperature value;

[0053] Control the compressor to start and operate at the target speed.

[0054] In this embodiment, when it is determined to start the defrosting mode, the second pipeline and the third pipeline are disconnected through the second electric valve, and the refrigerant flowing out of the compressor is controlled to flow along the first pipeline to the second evaporator through the first electric valve, and then the compressor is determined to operate at the target speed according to the temperature value of the environment where the refrigerator is located, so that the refrigerator realizes reverse-flow defrosting and saves energy consumption.

[0055] In a third aspect, the present application provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a computer, they are used to implement the method described in the second aspect.

[0056] The computer-readable storage medium provided by the embodiments of the present application can execute the technical solutions in the above method embodiments, and the beneficial effects are similar, so details are not described herein again.

[0057] In a fourth aspect, the present application provides a computer program product, including a computer program, and when the computer program is executed by a computer, it is used to implement the method described in the second aspect.

[0058] The computer program product provided by the embodiments of the present application can execute the technical solutions in the above method embodiments, and the beneficial effects are similar, so details are not described herein again. Description of the Drawings

[0059] In order to more clearly illustrate the embodiments of the present application or the implementation manners in related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are some embodiments of the present application, and for those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0060] Figure 1 It is a schematic diagram of a refrigerator provided by an embodiment of the present application;

[0061] Figure 2 Schematic diagram of the structure of a refrigerator provided by an embodiment of the present application;

[0062] Figure 3 Schematic diagram showing that part of the pipeline in the first pipeline of the present application example is bent and inserted between multiple fins of the first evaporator 33;

[0063] Figure 4 Schematic diagram of the structure of a refrigerator provided by an embodiment of the present application;

[0064] Figure 5 Schematic diagram of the flow direction of the refrigerant when the refrigeration system 103 of the present application example is in the refrigeration mode;

[0065] Figure 6 Schematic diagram of the flow direction of the refrigerant when the refrigeration system 103 of the present application example is in the defrosting mode;

[0066] Figure 7 Schematic diagram of the flow direction of the refrigerant when the refrigeration system 103 of the present application example ends this defrosting;

[0067] Figure 8 Schematic diagram of the flow chart of a control method for a refrigerator provided by an embodiment of the present application;

[0068] Figure 9 Schematic diagram of the flow chart of another control method for a refrigerator provided by an embodiment of the present application;

[0069] Figure 10 Schematic diagram of the flow chart of yet another control method for a refrigerator provided by an embodiment of the present application.

[0070] Explanation of reference numerals:

[0071] 10 - Refrigerator; 11 - Freezer compartment;

[0072] 101 - Cabinet; 102 - Door body;

[0073] 103 - Refrigeration system; 104 - Control component;

[0074] 31 - Compressor; 32 - Condenser;

[0075] 33 - First evaporator; 34 - Second evaporator;

[0076] 35 - First electric valve; 36 - Second electric valve;

[0077] 105 - Temperature sensor. Detailed implementation manners

[0078] To make the objectives, implementation manners, and advantages of this application clearer, the following will clearly and completely describe the exemplary implementation manners of this application in conjunction with the accompanying drawings in the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only a part of the embodiments of this application, rather than all of the embodiments.

[0079] It should be noted that the brief description of the terms in this application is only for facilitating the understanding of the subsequent described implementation manners, rather than intending to limit the implementation manners of this application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0080] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclusively include. For example, a product or device including a series of components does not necessarily have to be limited to those components clearly listed, but may include other components not clearly listed or inherent to these products or devices.

[0081] During the refrigeration process of a refrigerator, frost will form on the evaporator and the connected pipelines due to the moisture in the circulating air. In the related art, exemplarily, for example, a defrosting heating wire is arranged near the evaporator to defrost the evaporator through the defrosting heater when defrosting is started. However, this method has problems such as an increase in the energy consumption of the refrigerator.

[0082] Furthermore, a reverse-flow defrosting method has emerged for defrosting, that is, the refrigerant flows reversely in each mechanism of the refrigeration system, and the high-temperature and high-pressure gas flowing out of the compressor enters the evaporator, and the heat from the high-temperature and high-pressure gas is utilized to defrost the evaporator.

[0083] However, in the related art, the structure of the refrigeration system that needs to achieve reverse-flow defrosting is relatively complex, resulting in a high cost.

[0084] Therefore, this application provides a refrigerator. When controlling reverse-flow defrosting, the refrigerant can defrost the freezing evaporator without passing through the freezing evaporator. That is, by arranging the pipeline between the compressor and the refrigerating evaporator among the multiple fins of the freezing evaporator, the heat of the refrigerant in this pipeline is used to defrost the freezing evaporator, and the refrigerant does not need to return to the compressor through the condenser, making the structure of the refrigeration system relatively simple and enabling defrosting with low energy consumption.

[0085] The following will detail the technical solutions of this application in conjunction with specific embodiments. These several specific embodiments can be combined with each other or exist independently. For the same or similar concepts or processes, they may not be repeated in some embodiments. The following will describe the embodiments of this application in conjunction with the accompanying drawings.

[0086] First, the specific structure of a refrigerator provided by the embodiments of this application will be described. Exemplarily,Figure 1 Schematic diagram of a refrigerator provided by an embodiment of the present application, as Figure 1 shown, the refrigerator 10 includes a box body 101, a door body 102, and a storage compartment provided in the box body 101.

[0087] In a possible implementation manner, as Figure 1 shown, the storage compartment includes a refrigerating compartment and a freezer compartment 11, Figure 1 the refrigerating compartment is not shown.

[0088] It can be understood that Figure 1 this is only a schematic diagram of a refrigerator applicable to the present application, and it can also be a refrigerator with other structures. The present application does not limit this.

[0089] In a possible implementation manner, the refrigerator 10 further includes a refrigeration system 103 and a control component 104. Exemplarily, Figure 2 structural schematic diagram of a refrigerator provided by an embodiment of the present application, as Figure 2 shown, the refrigeration system 103 includes a compressor 31, a condenser 32, a first evaporator 33, and a second evaporator 34.

[0090] Among them, the compressor 31 is configured to provide power for the refrigeration of the refrigerator 10.

[0091] The condenser 32 is configured to dissipate heat from the refrigerant coming from the compressor 31.

[0092] The first evaporator 33 is configured to provide cooling capacity for the freezer compartment.

[0093] The second evaporator 34 is configured to provide cooling capacity for the refrigerating compartment.

[0094] Among them, the outlet of the compressor 31 is respectively communicated with the condenser 32, and is also communicated with the second evaporator 34 through a first pipeline. A part of the pipeline in the first pipeline is bent and inserted between the multiple layers of fins of the first evaporator 33. A first electric valve 35 is provided between the compressor 31 and the condenser 32 and the second evaporator 34. The first electric valve 35 is configured to control the refrigerant flowing out of the compressor 31 to flow along the first pipeline to the second evaporator 34 when the refrigeration system 103 is in the defrosting mode.

[0095] The condenser 32 is communicated with the first evaporator 33 and the second evaporator 34. A second electric valve 36 is provided between the condenser 32 and the first evaporator 33 and the second evaporator 34. The second electric valve 36 is configured to control the refrigerant flowing out of the condenser 32 to flow to a second pipeline of the first evaporator 33 and a third pipeline of the second evaporator 34 when the refrigeration system 103 is in the defrosting mode.

[0096] The control component 104 is electrically connected to the first electric valve 35 and the second electric valve 36. The control component 104 is configured to:

[0097] When it is determined to start the defrosting mode, disconnect the second pipeline and the third pipeline through the second electric valve 36. Through the first electric valve 35, control the refrigerant flowing out of the compressor 31 to flow along the first pipeline to the second evaporator 34. Then obtain the temperature value of the environment where the refrigerator is located, determine the target speed of the compressor 31 according to the temperature value, control the compressor 31 to start, and operate at the target speed.

[0098] Exemplarily, the control component 104 can determine whether to start the refrigeration mode according to the temperature of the storage compartment of the refrigerator and / or the ambient temperature of the environment where the refrigerator 10 is located, so as to realize refrigerating the storage compartment. The present application does not limit the judgment method for the control component 104 to start the refrigeration mode.

[0099] Exemplarily, the control component 104 can determine whether to enter the defrosting mode according to factors such as the operation time of the evaporator, the frost thickness on the second evaporator 34, or the specific operation condition of the refrigerator. The present application does not limit this.

[0100] Exemplarily, for a part of the pipeline in the first pipeline that is bent and inserted between the multiple layers of fins of the first evaporator 33, reference can be made to Figure 3 , Figure 3 FIG. is a schematic diagram of a part of the pipeline in the first pipeline of the present application example that is bent and inserted between the multiple layers of fins of the first evaporator 33. It can be understood that Figure 3 only a part of the structure of the first evaporator 33 is shown.

[0101] In this embodiment, the outlet of the compressor 31 is respectively communicated with the condenser 32, and is communicated with the second evaporator 34 through a first pipeline. A part of the pipeline in the first pipeline is arranged between the multiple fins of the first evaporator. A first electric valve 35 is arranged between the compressor 31 and the condenser 32 and the second evaporator 34. The first electric valve 35 is configured to control the refrigerant flowing out of the compressor 31 to flow along the first pipeline to the second evaporator 34 when the refrigeration system 103 is in the defrosting mode. The condenser 32 is communicated with the first evaporator 33 and the second evaporator 34. A second electric valve 36 is arranged between the condenser 32 and the first evaporator 33 and the second evaporator 34. The second electric valve 36 is configured to control the refrigerant flowing out of the condenser 32 to flow to the second pipeline of the first evaporator 33 and the third pipeline of the second evaporator 34 when the refrigeration system 103 is in the defrosting mode. The control component 104 is configured to, when determining to start the defrosting mode, disconnect the second pipeline and the third pipeline through the second electric valve 36, and control the refrigerant flowing out of the compressor 31 to flow along the first pipeline to the second evaporator 34 through the first electric valve 35, and then determine that the compressor 31 operates at a target speed according to the temperature value of the environment where the refrigerator is located, so that the refrigerator realizes reverse-flow defrosting and saves energy consumption.

[0102] In a possible implementation manner, Figure 4 is a schematic structural diagram of a refrigerator provided by an embodiment of the present application. As Figure 4 shown, the refrigerator 10 may further include a temperature sensor 105. The temperature sensor 105 may be arranged outside the box body 101 and be in direct contact with the environment where the refrigerator 10 is located. The temperature sensor 105 is electrically connected to the control component 104.

[0103] The control component 104 may obtain the temperature value of the environment where the refrigerator is located through the temperature sensor 105. Specifically:

[0104] In a possible implementation manner, when determining to start the defrosting mode, the control component 104 may send a corresponding signal to the temperature sensor 105, so that the temperature sensor 105 can send the temperature value to the control component 104 according to this signal.

[0105] In another possible implementation manner, the temperature sensor 105 may detect the temperature value of the environment where the refrigerator 10 is located at time intervals, and then send the detected temperature value to the control component 104. The control component 104 may store the received temperature value. When determining to start the refrigeration mode, the control component 104 may obtain the temperature value of the moment closest to the current moment from the stored temperature values for determining the target speed of the compressor 31.

[0106] In a possible implementation, a refrigerating capillary is provided on the second pipeline, and a freezing capillary is provided on the third pipeline, which can throttle and depressurize the refrigerant entering the first evaporator 33 and the second evaporator 34.

[0107] In a possible implementation, a defrosting capillary is provided between the outlet of a part of the pipeline in the first pipeline and the second evaporator 34. Before the refrigerant enters the second evaporator 34 through the first pipeline, it is throttled and depressurized through the defrosting capillary, so that the high-temperature and high-pressure refrigerant becomes a low-temperature and low-pressure liquid state and vaporizes and absorbs heat in the second evaporator 34.

[0108] For the above-mentioned refrigerating capillary, freezing capillary and defrosting capillary, reference can be made to Figure 5 .

[0109] In a possible implementation, the control component 104 is configured to control the flow direction of the refrigerant flowing out of the compressor 31 to the condenser 32 through the first electric valve 35 when determining to turn on the refrigeration mode. And the second pipeline and the third pipeline are opened through the second electric valve 36, so that the refrigerant flowing out of the condenser 32 can flow to the first evaporator 33 and the second evaporator 34 to achieve refrigeration.

[0110] The control component 104 is configured to disconnect the second pipeline and the third pipeline through the second electric valve 36 when determining to turn on the defrosting mode, so as to prevent the refrigerant flowing out of the first pipeline from flowing along the third pipeline to the condenser 32. Then, the control component 104 controls the refrigerant flowing out of the compressor 31 to flow along the first pipeline to the second evaporator 34 through the first electric valve 35.

[0111] In a possible implementation, at the end of this defrosting, the control component 104 can control the refrigerant in the first pipeline to flow to the condenser 32 through the first electric valve 35, and then control the refrigerant flowing out of the compressor 31 to flow to the condenser 32 through the first electric valve 35, open the second pipeline and the third pipeline through the second electric valve 36, and then the compressor 31 can be turned on to enter the refrigeration mode. Exemplarily, in order to make the refrigerant in the first pipeline fully flow to the condenser 32, the control component 104 can open the passage between the first pipeline and the condenser 32 through the first electric valve 35 for a certain period of time, such as 5 minutes, and then open the second pipeline and the third pipeline.

[0112] It can be understood that after the defrosting is completed, the refrigeration system 103 entering the refrigeration mode may not be determined according to the temperature of the storage compartment of the refrigerator and / or the ambient temperature of the environment where the refrigerator 10 is located in the above example, but because of the defrosting mode of the refrigerator, the freezer is not refrigerated and the temperature of the first evaporator 33 rises, resulting in the temperature of the freezer rising. Therefore, the refrigeration mode can be entered after the defrosting is completed to achieve rapid refrigeration of the freezer.

[0113] Specifically, for the refrigerant flow direction, reference can be made to Figure 5 and Figure 6 .

[0114] Figure 5 FIG. is a schematic diagram of the refrigerant flow direction when the refrigeration system 103 according to the example of the present application is in the refrigeration mode. As Figure 5 shown, the low-temperature and low-pressure refrigerant is sucked into the compressor 31, compressed into a high-temperature and high-pressure refrigerant in the cylinder of the compressor 31, and then enters the condenser 32 through the first electric valve 35. The high-temperature and high-pressure refrigerant gas dissipates heat through the condenser 32, and the temperature continuously drops, gradually being cooled into a normal-temperature and high-pressure saturated vapor, and then enters the refrigerating capillary and the freezing capillary through the second electric valve 36 for throttling and pressure reduction to become a normal-temperature and low-pressure wet vapor. Subsequently, it starts to absorb heat and vaporize in the first evaporator 33 and the second evaporator 34, not only reducing the temperature of the first evaporator 33 and the second evaporator 34 and their surroundings, but also turning the refrigerant into a low-temperature and low-pressure gas, and then passing through the compressor 31 again to complete the refrigeration cycle of the refrigerator.

[0115] Figure 6 FIG. is a schematic diagram of the refrigerant flow direction when the refrigeration system 103 according to the example of the present application is in the defrosting mode. As Figure 6 shown, the low-temperature and low-pressure refrigerant is sucked into the compressor 31, compressed into a high-temperature and high-pressure refrigerant in the cylinder of the compressor 31, and then discharged along the first pipeline to the second evaporator 34. The high-temperature and high-pressure refrigerant gas dissipates heat through the second evaporator 34, and the temperature continuously drops, gradually being cooled into a normal-temperature and high-pressure saturated vapor, and then passing through the capillary for throttling and pressure reduction to become a normal-temperature and low-pressure wet vapor, and then returning to the compressor 31. Among them, the high-temperature and high-pressure refrigerant in the first pipeline can melt the frost condensed on the first evaporator 33 by means of heat conduction to achieve the purpose of defrosting.

[0116] Figure 7 FIG. is a schematic diagram of the refrigerant flow direction when the refrigeration system 103 according to the example of the present application ends the current defrosting. As Figure 7 shown, when the current defrosting ends and before the second pipeline and the third pipeline are opened, the refrigerant in the first pipeline flows to the condenser 32 to prevent the refrigerant from remaining in the first pipeline and affecting subsequent refrigeration.

[0117] Based on the above refrigerator, Figure 8 FIG. is a schematic flowchart of a control method for a refrigerator provided by an embodiment of the present application. This method can be executed by the above control component 104. As Figure 8 shown, this method includes the following steps.

[0118] S801. When it is determined to start the defrosting mode, disconnect the second pipeline and the third pipeline through the second electric valve.

[0119] S802. Control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator through the first electric valve.

[0120] S803. Obtain the temperature value of the environment where the refrigerator is located.

[0121] S804. Determine whether the temperature value is above the preset temperature value.

[0122] If the temperature value is above the preset temperature value, execute S805; if the temperature value is not above the preset temperature value, execute S806.

[0123] Exemplarily, the preset temperature value can be 35 °C (Celsius).

[0124] S805. Determine that the target speed is the first speed.

[0125] If the temperature value is above the preset temperature value, it indicates that the ambient temperature is relatively high, and the defrosting efficiency of the refrigerator will also be relatively high. Then, it can run at a lower speed, that is, at this time, it is not necessary to defrost with a higher power. Exemplarily, the first speed can be 2100 rpm / min (revolutions per minute).

[0126] S806. Determine that the target speed is the second speed.

[0127] If the temperature value is not above the preset temperature value, it indicates that the ambient temperature is relatively low, and a higher power is required for defrosting. Among them, the second speed is greater than the first speed. Exemplarily, the second speed can be 3900 rpm / min.

[0128] S807. Control the compressor to start and run at the target speed.

[0129] After determining the target speed, the control component 104 can control the compressor to start and run at the target speed to achieve defrosting.

[0130] In this embodiment, when determining to start the defrosting mode, disconnect the second pipeline and the third pipeline through the second electric valve, and control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator through the first electric valve. Then, determine that the compressor runs at the target speed according to the temperature value of the environment where the refrigerator is located, so as to improve the countercurrent defrosting efficiency and save energy consumption.

[0131] In a possible implementation manner, before entering defrosting, the second pipeline and the third pipeline can be opened for a period of time first, and then these two pipelines are disconnected, so that the refrigerant in the pipelines between the condenser and the two evaporators flows to the two evaporators, avoiding the refrigerant remaining in the second pipeline and the third pipeline from affecting the subsequent refrigeration effect.

[0132] Specifically, Figure 9Schematic diagram of another control method for the refrigerator provided by the embodiment of the present application. This method can be executed by the above control component 104, as Figure 9 shown, the method includes the following steps.

[0133] S901. When it is determined to start the defrosting mode, open the second pipeline and the third pipeline through the second electric valve for a first preset duration, and then disconnect the second pipeline and the third pipeline.

[0134] When it is determined to start the defrosting mode, open the second pipeline and the third pipeline through the second electric valve for a first preset duration, so that the refrigerant in the pipeline between the condenser and the two evaporators flows to the two evaporators.

[0135] Exemplarily, the first preset duration can be 10 minutes.

[0136] S902. Control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator through the first electric valve.

[0137] S903. Obtain the temperature value of the environment where the refrigerator is located.

[0138] S904. Determine whether the temperature value is above the preset temperature value.

[0139] If the temperature value is above the preset temperature value, execute S905; if the temperature value is not above the preset temperature value, execute S906.

[0140] S905. Determine that the target speed is the first speed.

[0141] S906. Determine that the target speed is the second speed.

[0142] S907. Control the compressor to start and operate at the target speed.

[0143] In this embodiment, before entering defrosting, the refrigerant in the pipeline between the condenser and the two evaporators can be controlled to flow to the two evaporators, avoiding the influence of the refrigerant remaining in the second pipeline and the third pipeline on the subsequent refrigeration effect.

[0144] If the temperature value is above the preset temperature value, further, after controlling the compressor to operate at the first speed for a period of time, the speed of the compressor can be increased until the defrosting ends, so that the refrigerant in the pipeline between the condenser and the two evaporators flowing into the two evaporators can have sufficient time to evaporate.

[0145] Specifically, Figure 10 Schematic diagram of yet another control method for the refrigerator provided by the embodiment of the present application. This method can be executed by the above control component 104, as Figure 10 shown, the method includes the following steps.

[0146] S1001. When determining to start the defrosting mode, after opening the second pipeline and the third pipeline through the second electric valve for a first preset duration, disconnect the second pipeline and the third pipeline.

[0147] S1002. Control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator through the first electric valve.

[0148] S1003. Obtain the temperature value of the environment where the refrigerator is located.

[0149] S1004. Determine whether the temperature value is above the preset temperature value.

[0150] S1005. Determine that the target speed is the first speed.

[0151] S1006. Control the compressor to operate at the first speed for a second preset duration.

[0152] S1007. Adjust the speed of the compressor to the second speed, and control the compressor to continue operating at the second speed until the end of this defrosting.

[0153] After the compressor operates at the first speed for the second preset duration, adjust the speed of the compressor to the second speed to fully defrost the first evaporator.

[0154] S1008. Determine that the target speed is the second speed.

[0155] S1009. Control the compressor to start and operate at the second speed.

[0156] In this embodiment, if the temperature of the environment where the refrigerator is located is relatively high, the compressor can be controlled to operate at a relatively low speed for a period of time, and then the speed of the compressor is increased until the defrosting ends, so that the refrigerant in the condenser flowing into the two evaporators and the pipeline between the two evaporators can have sufficient time to evaporate, avoiding the liquid refrigerant flowing into the compressor and affecting the function of the compressor.

[0157] This application also provides a computer-readable storage medium, which may include: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks or optical discs that can store program codes. Specifically, the computer-readable storage medium stores computer execution instructions, and when the computer execution instructions are executed by a computer, they are used to implement the technical solutions shown in the above method embodiments.

[0158] The present application also provides a program product, which includes execution instructions stored in a readable storage medium. When the computer program is executed by a computer, the technical solutions shown in the above method embodiments are executed. The specific implementation manners and technical effects are similar and will not be elaborated herein.

[0159] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0160] For the sake of convenience of explanation, the above description has been made in combination with specific implementation manners. However, the above exemplary discussion is not intended to be exhaustive or to limit the implementation manners to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above implementation manners are for better explaining the principles and practical applications, so that those skilled in the art can better use the implementation manners and various different modified implementation manners suitable for specific use considerations.

[0161] In the present application, "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article indicates that the associated objects before and after are in an "or" relationship.

[0162] In the embodiments of the present application, the descriptions such as first and second are only for the purpose of schematic illustration and distinguishing the described objects, without any order, nor do they represent a special limitation on the number of devices in the embodiments of the present application, and cannot constitute any limitation on the embodiments of the present application. For example, the first threshold and the second threshold are only for distinguishing different thresholds, rather than indicating differences in the magnitudes, priorities, or importance levels of these two thresholds.

[0163] In the present application, "exemplary", "in some embodiments", "in other embodiments", etc. are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of the word "exemplary" is intended to present concepts in a specific manner.

[0164] In this application, "of", "corresponding", "corresponding to", and "associated" can sometimes be used interchangeably. It should be noted that when the differences are not emphasized, they convey the same meaning. In the embodiments of this application, "communication" and "transmission" can sometimes be used interchangeably. It should be noted that when the differences are not emphasized, they convey the same meaning. For example, "transmission" can include sending and / or receiving, and can be a noun or a verb.

[0165] In this application, "equal to" can be used in combination with "less than" or "greater than", but not simultaneously with both "less than" and "greater than". When "equal to" is used in combination with "less than", the technical solution adopted for "less than" applies. When "equal to" is used in combination with "greater than", the technical solution adopted for "greater than" applies.

Claims

1. A refrigerator, characterized in that, the refrigerator comprises: a box body provided with a refrigerating chamber and a freezing chamber; a refrigeration system disposed in the box body, comprising: a compressor, a condenser, a first evaporator for providing cooling capacity to the freezing chamber, and a second evaporator for providing cooling capacity to the refrigerating chamber; wherein, an outlet of the compressor is respectively communicated with the condenser and is communicated with the second evaporator through a first pipeline, and a part of the pipeline in the first pipeline is interposed between multiple fins of the first evaporator; a first electric valve is disposed between the compressor and the condenser and the second evaporator, and the first electric valve is configured to: when the refrigeration system is in a defrosting mode, control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator; the condenser is communicated with the first evaporator and the second evaporator, and a second electric valve is disposed between the condenser and the first evaporator and the second evaporator, and the second electric valve is configured to: when the refrigeration system is in a defrosting mode, control the refrigerant flowing out of the condenser to flow to a second pipeline of the first evaporator and a third pipeline of the second evaporator; the refrigerator further comprises: a control component electrically connected to the first electric valve and the second electric valve respectively, and configured to: when determining to start the defrosting mode, disconnect the second pipeline and the third pipeline through the second electric valve; control, through the first electric valve, the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator; acquire a temperature value of an environment where the refrigerator is located; determine a target rotation speed of the compressor according to the temperature value; control the compressor to start and operate at the target rotation speed.

2. The refrigerator according to claim 1, characterized in that, the control component is configured to: judge whether the temperature value is above a preset temperature value; if so, determine the target rotation speed to be a first rotation speed; if not, determine the target rotation speed to be a second rotation speed, and the second rotation speed is greater than the first rotation speed.

3. The refrigerator according to claim 2, characterized in that, the control component is configured to: when determining to start the defrosting mode, after opening the second pipeline and the third pipeline through the second electric valve for a first preset duration, disconnect the second pipeline and the third pipeline.

4. The refrigerator according to claim 3, characterized in that, the control component is configured to: if the temperature value is above the preset temperature value, control the compressor to operate at the first rotation speed for a second preset duration; adjust the rotation speed of the compressor to the second rotation speed and control the compressor to continue to operate at the second rotation speed until the current defrosting ends.

5. The refrigerator according to any one of claims 1-4, characterized in that, the control component is configured to: at the end of the current defrosting, control, through the first electric valve, the refrigerant in the first pipeline to flow to the condenser; control, through the first electric valve, the refrigerant flowing out of the compressor to flow to the condenser; Open the second pipeline and the third pipeline through the second electric valve; Control the refrigeration system to enter the refrigeration mode.

6. The refrigerator according to claim 1, characterized in that the control component is configured to: when determining to turn on the refrigeration mode, control the refrigerant flowing out of the compressor to flow to the condenser through the first electric valve; open the second pipeline and the third pipeline through the second electric valve.

7. The refrigerator according to claim 1, characterized in that a freezing capillary is provided on the second pipeline; a refrigerating capillary is provided on the third pipeline.

8. The refrigerator according to claim 1, characterized in that a defrosting capillary is provided between the outlet of a part of the pipeline in the first pipeline and the second evaporator.

9. A control method for a refrigerator, characterized in that the refrigerator includes: a box body provided with a refrigerating chamber and a freezing chamber; a refrigeration system provided in the box body, including: a compressor, a condenser, a first evaporator for providing cooling capacity for the freezing chamber, and a second evaporator for providing cooling capacity for the refrigerating chamber; wherein, the outlet of the compressor is respectively communicated with the condenser and the second evaporator through a first pipeline, and a part of the pipeline in the first pipeline is arranged between multiple fins of the first evaporator; a first electric valve is arranged between the compressor and the condenser and the second evaporator, and the first electric valve is configured to: when the refrigeration system is in the defrosting mode, control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator; the condenser is communicated with the first evaporator and the second evaporator, and a second electric valve is arranged between the condenser and the first evaporator and the second evaporator, and the second electric valve is configured to: when the refrigeration system is in the defrosting mode, control the refrigerant flowing out of the condenser to flow to the second pipeline of the first evaporator and the third pipeline of the second evaporator; the method includes: when determining to start the defrosting mode, disconnect the second pipeline and the third pipeline through the second electric valve; control the refrigerant flowing out of the compressor to flow along the first pipeline to the second evaporator through the first electric valve; acquire the temperature value of the environment where the refrigerator is located; determine the target rotation speed of the compressor according to the temperature value; control the compressor to start and operate at the target rotation speed.

10. A computer-readable storage medium, characterized in that computer-executable instructions are stored on the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, the method according to claim 9 is implemented.

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