Refrigerating system, refrigerator and control method thereof

Abstract

The invention belongs to the technical field related to refrigeration, and particularly relates to a refrigeration system, a refrigerator and a control method of the refrigerator. An anti-condensation pipe; according to the refrigeration circulation loop, a first evaporator is arranged on a first refrigerant branch, and an anti-condensation pipe and a bypass branch are arranged in parallel. And the valve body is provided with a first inlet, a second inlet, a first outlet and a second outlet, the first inlet communicates with the outlet of the anti-condensation pipe, the second inlet communicates with the bypass branch, the first outlet communicates with the first refrigerant branch, the second outlet communicates with the second refrigerant branch, and the first outlet and the second outlet both have a full-open state, a throttling state and a closed state. Condensation heat management, cooling speed and energy-saving operation can be balanced by only adopting one valve body, the control logic is simple, and the stability of system operation can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration, and more particularly, to a refrigeration system, a refrigerator and a control method thereof. BACKGROUND

[0002] The temperature rise of a dual-system refrigerator is high when initially powered on or when the user frequently opens and closes the door, and the heat load of the cabinet is large, so the system refrigeration capacity needs to be increased to achieve rapid cooling, which is generally achieved by increasing the compressor operating frequency to increase the mass flow rate. However, after the refrigerator is stably running, only a small amount of cold energy is needed to maintain temperature balance. In addition, in order to prevent condensation, a condensation prevention pipe is generally arranged in the periphery of the cabinet of the freezer compartment of the refrigerator, but in the case of a low-humidity environment, condensation will not occur, and the refrigerant needs to flow without passing through the condensation prevention pipe to reduce the heat load of the cabinet.

[0003] In order to achieve a balance between cooling speed and energy-saving operation as much as possible, the system generally sets multiple valve bodies, and the control logic is complex, which affects the stability of the system operation. SUMMARY

[0004] The purpose of the present application is to provide a refrigeration system, a refrigerator and a control method thereof, which can achieve a balance in condensation heat management, cooling speed and energy-saving operation by using only one valve body, and the control logic is simple, which is conducive to improving the stability of the system operation.

[0005] In a first aspect, the present application provides a refrigeration system, comprising: a condensation prevention pipe; a refrigeration assembly comprising a compressor, a condenser, a first evaporator and a second evaporator; a refrigeration cycle circuit comprising a main pipeline and a first refrigerant branch, a second refrigerant branch and a bypass branch in communication with the main pipeline, the first refrigerant branch and the second refrigerant branch being arranged in parallel, the first evaporator being arranged in the first refrigerant branch, the outlet of the first evaporator being in communication with the inlet of the second evaporator, the second evaporator, the compressor, the condenser and the condensation prevention pipe being arranged in the main pipeline in sequence, the bypass branch being arranged in parallel with the condensation prevention pipe; and a valve body arranged at the connection between the first refrigerant branch and the second refrigerant branch and the main pipeline, the valve body having a first inlet, a second inlet, a first outlet and a second outlet, the first inlet being in communication with the outlet of the condensation prevention pipe, the second inlet being in communication with the bypass branch, the first outlet being in communication with the first refrigerant branch, the second outlet being in communication with the second refrigerant branch, the first outlet and the second outlet each having a fully open state, a throttling state and a closed state, wherein the first inlet is selectively conductive with any one of the first outlet and the second outlet, or the second inlet is selectively conductive with any one of the first outlet and the second outlet.

[0006] In a second aspect, the application provides a refrigeration system for a refrigerator including a first compartment and a freezer compartment, the refrigeration system comprising: an anti-condensation pipe; a refrigeration assembly including a compressor, a condenser, a first evaporator, and a second evaporator; a refrigeration cycle circuit including a main pipe and a first refrigerant branch, a second refrigerant branch, and a bypass branch in communication with the main pipe respectively, the first refrigerant branch and the second refrigerant branch being arranged in parallel, the first evaporator being arranged in the first refrigerant branch, the second evaporator being arranged in the second refrigerant branch, an outlet of the first evaporator and an outlet of the second evaporator being in communication with an inlet of the compressor, the compressor, the condenser, and the anti-condensation pipe being arranged in the main pipe, the bypass branch being arranged in parallel with the anti-condensation pipe; and a valve body having a first inlet, a second inlet, a first outlet, and a second outlet, the first inlet being in communication with an outlet of the anti-condensation pipe, the second inlet being in communication with the bypass branch, the first outlet being in communication with the first refrigerant branch, the second outlet being in communication with the second refrigerant branch, the first outlet and the second outlet each having a fully open state, a throttling state, and a closed state, wherein the first inlet is selectively in communication with any one of the first outlet and the second outlet, or the second inlet is selectively in communication with any one of the first outlet and the second outlet.

[0007] In a third aspect, the application provides a refrigerator including a cabinet, the cabinet having a freezer compartment and a first compartment arranged therein; a refrigeration system according to any one of the embodiments of the application, the first evaporator of the refrigeration system being arranged in the first compartment, the second evaporator being arranged in the second compartment; a sensor assembly for detecting environmental information of the refrigerator; and a controller electrically connected with the sensor assembly, the compressor of the refrigeration system, and the valve body, the controller being configured to control the valve body and the compressor to operate according to the environmental information.

[0008] In a fourth aspect, the application provides a control method for a refrigerator, the control method being applied to the refrigerator according to any one of the embodiments of the application, and comprising: acquiring environmental information of the refrigerator; and controlling the valve body and the compressor to operate according to the environmental information.

[0009] According to the refrigeration system, the refrigerator, and the control method thereof provided by the embodiments of the application, the first evaporator and the second evaporator are arranged in the refrigeration cycle circuit in a series-parallel or parallel manner, the anti-condensation pipe is arranged in parallel with the bypass branch, and a two-inlet and two-outlet valve body having a switching and throttling function is arranged in communication with each branch, so that the valve body and the compressor can be controlled to operate according to the environmental information of the refrigerator. Since only one valve body is used to balance the anti-condensation management, the cooling speed, and the energy-saving operation, the control logic is simple, and the stability of system operation is improved.

[0010] The above description is only a summary of the technical solutions of the application. In order to make the technical means of the application more clearly understood, the specific embodiments of the application are described in detail below according to the content of the description, and in order to make the above and other purposes, features, and advantages of the application more obvious and easy to understand. Attached Figure Description

[0011] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0012] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0013] Figure 1 This is a schematic diagram of a refrigeration system according to an embodiment of this application;

[0014] Figure 2 for Figure 1 The diagram shows an exploded view of the valve body in the refrigeration system.

[0015] Figure 3 This is a schematic diagram of a refrigeration system according to another embodiment of this application;

[0016] Figure 4 This is a schematic diagram of the structure of a refrigerator according to an embodiment of this application;

[0017] Figure 5 This is a flowchart of a refrigerator control method according to an embodiment of this application;

[0018] Figure 6 This is a detailed flowchart of a refrigerator control method according to an embodiment of the present application;

[0019] Figure 7 This is a detailed flowchart of a refrigerator control method according to an embodiment of the present application.

[0020] The labels in the attached diagram are as follows:

[0021] 10. Refrigeration system;

[0022] 1. Refrigeration assembly; 11. Compressor; 12. Condenser; 13. First evaporator; 14. Second evaporator; 15. First throttling element; 16. Second throttling element;

[0023] 2. Anti-condensation pipe;

[0024] 3. Refrigeration cycle loop; 30. Main pipe; 31. First refrigerant branch; 32. Second refrigerant branch; 33. Bypass branch;

[0025] 4. Valve body; 41. First inlet; 42. Second inlet; 43. First outlet; 431. First through hole; 432. First arc groove; 44. Second outlet; 441. Second through hole; 442. Second arc groove; 45. Valve seat; 46. Valve block;

[0026] 460. Connecting part; 461. First notch; 462. Second notch;

[0027] 5. Filtration device;

[0028] 100. Refrigerator; 101. First compartment; 102. Freezer compartment. Detailed Implementation

[0029] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0030] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0031] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0032] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0033] Figure 1 This is a schematic diagram of the structure of a refrigeration system 10 according to an embodiment of this application.

[0034] See Figure 1 This application provides a refrigeration system 10. The refrigerator includes a first compartment and a freezer compartment. The refrigeration system 10 includes a refrigeration component 1, an anti-condensation pipe 2, a refrigeration circulation loop 3, and a valve body 4. This refrigeration system 10 can be applied to various refrigeration equipment such as refrigerators, freezers, and cold storage. For ease of description, the embodiments of this application use the application of the refrigeration system 10 in a refrigerator as an example. The refrigeration component 1 includes a compressor 11, a condenser 12, a first evaporator 13, and a second evaporator 14.

[0035] The anti-condensation pipe 2 can be installed inside the door frame of the refrigerator, or at the various horizontal and vertical beams of the door frame. The high-temperature liquid refrigerant in the anti-condensation pipe 2 flows through these beams, heating their surfaces and balancing the temperature difference with the environment, thus preventing condensation. The anti-condensation pipe 2 can be made of plastic and is used to circulate refrigerant and other cooling media. It has high corrosion resistance and extends its service life.

[0036] The refrigeration cycle circuit 3 includes a main pipeline 30 and a first refrigerant branch 31, a second refrigerant branch 32, and a bypass branch 33, which are respectively connected to the main pipeline 30. The first refrigerant branch 31 and the second refrigerant branch 32 are arranged in parallel. The first evaporator 13 is arranged in the first refrigerant branch 31. The outlet of the first evaporator 13 is connected to the inlet of the second evaporator 14. The second evaporator 14, the compressor 11, the condenser 12, and the anti-condensation pipe 2 are arranged in the main pipeline 30 in sequence. The bypass branch 33 is arranged in parallel with the anti-condensation pipe 2.

[0037] The valve body 4 is located at the connection between the first refrigerant branch 31 and the second refrigerant branch 32 and the main pipeline 30. The valve body 4 has a first inlet 41, a second inlet 42, a first outlet 43 and a second outlet 44. The first inlet 41 is connected to the outlet of the condenser 12, the second inlet 42 is connected to the bypass branch 33, the first outlet 43 is connected to the first refrigerant branch 31, and the second outlet 44 is connected to the second refrigerant branch 32. Both the first outlet 43 and the second outlet 44 have a fully open state, a throttling state and a closed state. The valve body 4 is configured such that the first inlet 41 is selectively connected to either the first outlet 43 or the second outlet 44, or the second inlet 42 is selectively connected to either the first outlet 43 or the second outlet 44.

[0038] For a dual-system refrigerator with a first evaporator 13 and a second evaporator 14, the temperatures of the first and second compartments rise rapidly when the refrigerator is first powered on, when the user frequently opens and closes the refrigerator door, or in high-temperature environments. In related technologies, if both the first and second compartments simultaneously require rapid cooling, a high-flow-rate throttling element is typically used to cool the second compartment, while a low-flow-rate throttling element is used to cool the first compartment. This causes the second compartment to quickly reach its set temperature. However, since the cooling demand of the first compartment is greater than that of the second compartment, an uneven distribution of refrigerant flow occurs. This prevents the refrigerant flow from being rationally allocated according to the cooling needs of the first and second compartments, increasing operating energy consumption.

[0039] Furthermore, in high-temperature and high-humidity environments, to prevent condensation, refrigerators typically have anti-condensation pipes 2 installed inside the freezer compartment. However, in low-to-medium humidity environments, condensation does not occur. If refrigerant flows through these anti-condensation pipes 2, it will increase the system's heat load. To achieve a balance between cooling speed and energy-saving operation, the system generally uses multiple valves, resulting in complex control logic and affecting system stability. Moreover, in related technologies, most refrigerator valves only have on / off functions and lack throttling functions, or they use electronic expansion valves with throttling functions, but these are usually single-inlet and single-outlet valves, unable to switch flow paths.

[0040] Therefore, in this embodiment, the valve body 4 has a first inlet 41, a second inlet 42, a first outlet 43, and a second outlet 44. The first inlet 41 is connected to the outlet of the condenser 12, the second inlet 42 is connected to the bypass branch 33, the first outlet 43 is connected to the first refrigerant branch 31, and the second outlet 44 is connected to the second refrigerant branch 32. The first evaporator 13 is disposed in the first refrigerant branch 31, and the second evaporator 14 is disposed in the main pipeline 30, so that the first evaporator 13 and the second evaporator 14 are disposed in series and parallel in the refrigeration cycle loop 3. The first evaporator 13 is used to refrigerate the first compartment, and the second evaporator 14 is used to refrigerate the second compartment.

[0041] In the refrigeration system 10 of this application embodiment, anti-condensation management is required under high temperature and high humidity conditions. The first inlet 41 of the valve body 4 is open and the second inlet 42 is closed. When the first chamber has a cooling demand, the first inlet 41 of the valve body 4 is connected to the first outlet 43, and the second inlet 42 and the second outlet 44 are closed. The high temperature and high pressure gas discharged from the compressor 11 becomes liquid refrigerant after being condensed and cooled by the condenser 12. The inlet of the anti-condensation pipe 2 is connected to the outlet of the condenser 12. The heat of the high temperature liquid refrigerant is used to prevent condensation in the anti-condensation pipe 2. Then, after the refrigerant flows through the flow channel connected by the first inlet 41 and the first outlet 43 of the valve body 4, the low temperature and low pressure liquid evaporates and absorbs heat in the first evaporator 13, taking away the heat of the first chamber. Part of it becomes low temperature and low pressure gas, and the other part of the low temperature and low pressure liquid enters the second evaporator 14 to evaporate and absorb heat, taking away the heat of the second chamber and becoming low temperature and low pressure gas. Then it flows back to the compressor 11 and is compressed into high temperature and high pressure gas, completing one refrigeration cycle. When only the second compartment requires cooling, the first outlet 43 of the valve body 4 is closed and the second outlet 44 is opened, and the first inlet 41 and the second outlet 44 are connected. The high-temperature and high-pressure gas discharged from the compressor 11 becomes liquid refrigerant after being condensed and cooled by the condenser 12. After the anti-condensation pipe 2 is protected against condensation, the liquid flows through the flow channel of the first inlet 41 and the second outlet 44 of the valve body 4. The low-temperature and low-pressure liquid evaporates and absorbs heat in the second evaporator 14, taking away the heat from the second compartment and becoming low-temperature and low-pressure gas. Then it flows back to the compressor 11 and is compressed into high-temperature and high-pressure gas, completing one refrigeration cycle.

[0042] In low to medium humidity environments, when anti-condensation management is not required, the first inlet 41 of valve body 4 is closed and the second inlet 42 is open. Then, depending on whether the first chamber has a cooling demand or only the second chamber has a cooling demand, the second inlet 42 is selectively connected to either the first outlet 43 or the second outlet 44.

[0043] The valve body 4 has a fully open, throttling, and closed state for its first outlet 43 and second outlet 44. Besides switching between the first refrigerant branch 31 and the second refrigerant branch 32, it also has a throttling function. The first outlet 43 and second outlet 44 can be switched between fully open and throttling states based on the operating frequency of the compressor 11, allowing for four different flow rate combinations. For example, if the first room has a cooling demand, and the compressor 11 operates at a higher frequency, the first outlet 43 can be controlled to be fully open for high-flow cooling; if the compressor 11 operates at a lower frequency, the first outlet 43 can be controlled to be throttling for energy-saving cooling with a lower flow rate. Similarly, if only the second room has a cooling demand, the second outlet 44 can be controlled to be fully open or throttling based on the compressor 11's operating frequency, achieving either high-flow rapid cooling or low-flow energy-saving cooling. Therefore, the two-inlet and two-outlet valve body 4 can select whether to perform condensation heat management according to the external environmental conditions, and at the same time, it can reasonably allocate the refrigerant flow according to the cooling needs of the second chamber, thereby reducing the system's operating power consumption while achieving condensation heat management and rapid cooling.

[0044] The refrigeration system 10 provided in this embodiment arranges the first evaporator 13 and the second evaporator 14 in a series-parallel configuration in the refrigeration cycle loop 3, and connects the anti-condensation pipe 2 and the bypass branch 33 in parallel. It also employs a valve body with on / off and throttling functions, allowing control of the valve body and compressor operation based on the refrigerator's environmental information. Since only one valve body is used to achieve a balance between condensation heat management, cooling speed, and energy-saving operation, the control logic is simple, which helps improve the stability of system operation.

[0045] Figure 2 for Figure 1 The exploded view of valve body 4 in the refrigeration system 10 shown.

[0046] In some embodiments, the valve body 4 includes a valve seat 45 and a valve block 46 coaxially arranged. The end face of the valve seat 45 is provided with a first inlet 41, a second inlet 42, a first outlet 43 and a second outlet 44 distributed circumferentially. The first inlet 41 and the second inlet 42 are opened on a circumference with the central axis of the valve seat 45 as the center and a first length as the radius. The first outlet 43 and the second outlet 44 are opened on a circumference with the central axis of the valve seat 45 as the center and a second length as the radius, and the first length is greater than the second length. The first outlet 43 includes a first through hole 431 and a first arc-shaped groove 432 communicating with the first through hole 431. The second outlet 44 includes a second through hole 441 and a second arc-shaped groove 442 communicating with the second through hole 441.

[0047] The valve block 46 includes a connecting portion 460 and a first notch 461 and a second notch 462 disposed on the connecting portion 460. The connecting portion 460 is fitted to the end face of the valve seat 45 and can rotate relative to the valve seat 45, so that the first notch 461 can selectively communicate with either the first inlet 41 or the second inlet 42, and the second notch 462 can selectively communicate with either the first outlet 43 or the second outlet 44; wherein, when the second notch 462 communicates with the first through hole 431, the first outlet 43 is in a fully open state; the second notch 461... When 62 is connected to the second through hole 441, the second outlet 44 is in a fully open state; when the second notch 462 is connected to the first arc groove 432, the first outlet 43 is in a throttling state; when the second notch 462 is connected to the second arc groove 442, the second outlet 44 is in a throttling state; when the remaining parts of the connecting part 460, except for the second notch 462, cover the first outlet 43, the first outlet 43 is in a closed state; when the remaining parts of the connecting part 460, except for the second notch 462, cover the second outlet 44, the second outlet 44 is in a closed state.

[0048] See Figure 2 The end face of the valve seat 45 is a flat mating surface, and the valve block 46 can fit against the end face of the valve seat 45 and rotate at a certain angle. The valve body 4 also includes a first inlet pipe, a second inlet pipe, a first outlet pipe, and a second outlet pipe fixedly connected to the valve seat 45. The first inlet pipe is connected to the first inlet 41, the second inlet pipe is connected to the second inlet 42, the first outlet pipe is connected to the first outlet 43, and the second outlet pipe is connected to the second outlet 44. The first inlet pipe, the second inlet pipe, the first outlet pipe, and the second outlet pipe are respectively connected to the refrigeration cycle loop 3 to meet the needs of the refrigeration system 10.

[0049] The valve body 4 may also include a control unit and a motor (not shown in the figure). The control unit controls the rotor of the motor to drive the valve block 46 to rotate relative to the valve seat 45. The connecting part 460 of the valve block 46 is used to rotate and engage with the end face of the valve seat 45. When the connecting part 460 rotates in the first direction, the first notch 461 communicates with the first inlet 41. When the connecting part 460 rotates in the second direction, the first notch 461 communicates with the second inlet 42. The first direction is opposite to the second direction.

[0050] When the connecting part 460, except for the second notch 462, rotates to cover the first outlet 43 of the valve seat 45, the first outlet 43 is closed, and refrigerant cannot flow out from the first outlet 43. Conversely, when the connecting part 460 rotates to a position not covering the first outlet 43, if the second notch 462 corresponds to the first through hole 431 of the first outlet 43, the first outlet 43 is fully open, and refrigerant flows directly out from the first through hole 431; if the second notch 462 corresponds to the first arc-shaped groove 432 of the first outlet 43, the first outlet 43 is in a throttling state, and refrigerant enters the first through hole 431 and then flows out from the first arc-shaped groove 432. Similarly, when the connecting part 460 covers the second outlet 44, the second outlet 44 is closed; when the connecting part 460 rotates to connect with the second through hole 441 or the second arc-shaped groove 442 of the second outlet 44, the second outlet 44 can be either fully open or in a throttling state.

[0051] It is understandable that the valve body 4 can also have other structural forms, as long as it can realize the on / off and throttling functions of two inlets and two outlets, and there are no restrictions here.

[0052] In some embodiments, the refrigeration assembly further includes a first throttling element 15 and / or a second throttling element 16, wherein the first throttling element 15 is disposed in the first refrigerant branch 31 and is connected to the inlet of the first evaporator 13, and the second throttling element 16 is disposed in the second refrigerant branch 32.

[0053] The first throttling element 15 and the second throttling element 16 can be, for example, but not limited to, capillary tubes. The first throttling element 15 and the second throttling element 16 can be simultaneously installed in the refrigeration cycle loop 3, or they can be installed separately in the refrigeration cycle loop 3. The high-temperature and high-pressure gas discharged from the compressor 11 becomes liquid refrigerant after being condensed and cooled by the condenser 12. After the anti-condensation pipe 2 is used to prevent condensation, the gas flows through the flow channel that connects the first inlet 41 and the second outlet 44 of the valve body 4. The first throttling element 15 and the second throttling element 16 can respectively obstruct, limit the flow, and reduce the pressure of the high-temperature and high-pressure liquid refrigerant, so that it becomes a low-temperature and low-pressure liquid, thereby improving the heat exchange efficiency of the condenser 12.

[0054] In some embodiments, the refrigeration system 10 further includes a filter device 5, the inlet of which is connected to the condenser 12, the first output end of which is connected to the inlet of the anti-condensation pipe 2, and the second output end of which is connected to the bypass branch 33.

[0055] The filter device 5 is installed in the main pipeline 30 and is located between the condenser 12 and the anti-condensation pipe 2. The filter device 5 is used to filter impurities and dust in the refrigerant and prevent impurities and dust from entering the anti-condensation pipe 2 or the bypass branch 33.

[0056] Figure 3 This is a schematic diagram of the structure of a refrigeration system 10 according to another embodiment of this application.

[0057] See Figure 3 The refrigeration system 10 in this embodiment of the application and Figure 1 The refrigeration system 10 shown has a similar structure, except that the first evaporator 13 and the second evaporator 14 are connected in parallel.

[0058] Specifically, the refrigeration system 10 includes: a refrigeration component 1, an anti-condensation pipe 2, a refrigeration circulation loop 3, and a valve body 4. The refrigeration component 1 includes a compressor 11, a condenser 12, a first evaporator 13, and a second evaporator 14. The refrigeration circulation loop 3 includes a main pipeline 30 and a first refrigerant branch 31, a second refrigerant branch 32, and a bypass branch 33, all connected to the main pipeline 30. The first refrigerant branch 31 and the second refrigerant branch 32 are arranged in parallel. The first evaporator 13 is located in the first refrigerant branch 31, and the second evaporator 14 is located in the second refrigerant branch 32. The outlets of both the first evaporator 13 and the second evaporator 14 are connected to the inlet of the compressor 11. The compressor 11, the condenser 12, and the anti-condensation pipe 2 are all located in the main pipeline 30, and the bypass branch 33 is arranged in parallel with the anti-condensation pipe 2.

[0059] The valve body 4 has a first inlet 41, a second inlet 42, a first outlet 43, and a second outlet 44. The first inlet 41 is connected to the outlet of the condenser 12, the second inlet 42 is connected to the bypass branch 33, the first outlet 43 is connected to the first refrigerant branch 31, and the second outlet 44 is connected to the second refrigerant branch 32. Both the first outlet 43 and the second outlet 44 have a fully open state, a throttling state, and a closed state. The first inlet 41 and the second inlet 42 are selectively connected to the first outlet 43 or the second outlet 44, respectively.

[0060] In high-temperature and high-humidity environments, anti-condensation management is required. The first inlet 41 of valve body 4 is open and the second inlet 42 is closed.

[0061] In the refrigeration system 10 of this application embodiment, anti-condensation management is required in high-temperature and high-humidity environments. The first inlet 41 of the valve body 4 is opened, and the second inlet 42 is closed. Depending on whether the first and second compartments have simultaneous cooling needs or separate cooling needs, the first inlet 41 of the valve body 4 is selectively connected to either the first outlet 43 or the second outlet 44. In medium- and low-humidity environments, when anti-condensation management is not required, the first inlet 41 of the valve body 4 is closed, and the second inlet 42 is opened. Then, depending on whether the first and second compartments have simultaneous cooling needs or separate cooling needs, the second inlet 42 is selectively connected to either the first outlet 43 or the second outlet 44.

[0062] The valve body 4 has a fully open, throttling, and closed state for its first outlet 43 and second outlet 44. Besides switching between the first refrigerant branch 31 and the second refrigerant branch 32, it also has a throttling function. The first outlet 43 and second outlet 44 can be switched between fully open and throttling states based on the operating frequency of the compressor 11, allowing for four different flow rate combinations. For example, if the first room has a cooling demand, and the compressor 11 operates at a higher frequency, the first outlet 43 can be controlled to be fully open for high-flow cooling; if the compressor 11 operates at a lower frequency, the first outlet 43 can be controlled to be throttling for energy-saving cooling with a lower flow rate. Similarly, if only the second room has a cooling demand, the second outlet 44 can be controlled to be fully open or throttling based on the compressor 11's operating frequency, achieving either high-flow rapid cooling or low-flow energy-saving cooling. Therefore, the two-inlet and two-outlet valve body 4 can select whether to perform condensation heat management according to the external environmental conditions, and at the same time, it can reasonably allocate the refrigerant flow according to the cooling needs of the first and second chambers, thereby reducing the system's operating power consumption while achieving condensation heat management and rapid cooling.

[0063] In some embodiments, the refrigeration assembly further includes a first throttling element 15 and / or a second throttling element 16, wherein the first throttling element 15 is disposed in the first refrigerant branch 31 and is connected to the inlet of the first evaporator 13, and the second throttling element 16 is disposed in the second refrigerant branch 32 and is connected to the inlet of the second evaporator 14.

[0064] The first throttling element 15 and the second throttling element 16 can be simultaneously installed in the refrigeration cycle loop 3, or they can be installed separately in the refrigeration cycle loop 3. The high-temperature and high-pressure gas discharged from the compressor 11 becomes liquid refrigerant after being condensed and cooled by the condenser 12. After the anti-condensation pipe 2 is protected against condensation, the gas flows through the flow channel that connects the first inlet 41 and the first outlet 43 or the second outlet 44 of the valve body 4. The first throttling element 15 and the second throttling element 16 can respectively impede, limit the flow, and reduce the pressure of the high-temperature and high-pressure liquid refrigerant, making it a low-temperature and low-pressure liquid, thereby improving the heat exchange efficiency of the condenser 12.

[0065] Figure 4 This is a schematic diagram of the structure of a refrigerator according to an embodiment of this application.

[0066] See Figure 4 This application provides a refrigerator, including: a cabinet, a refrigeration system 10, a sensor assembly, and a controller according to various embodiments of this application.

[0067] The refrigerator is provided with a first compartment 101 and a second compartment 102. The first evaporator 13 of the refrigeration system 10 is located in the first compartment 101, and the second evaporator 14 is located in the second compartment 102. The sensor assembly is used to detect the environmental information of the refrigerator. The controller is electrically connected to the sensor assembly, the compressor 11 of the refrigeration system 10 and the valve body 4 respectively. The controller is configured to control the operation of the valve body 4 and the compressor 11 according to the environmental information.

[0068] Figure 5 This is a flowchart of a refrigerator control method according to an embodiment of the present application.

[0069] See Figure 5 This application provides a refrigerator control method, which is applied to refrigerators in various embodiments of this application. The control method includes the following steps S1 to S2.

[0070] Step S1: Obtain the refrigerator's environmental information;

[0071] Step S2: Control valve body 4 and compressor 11 to operate according to environmental information.

[0072] Figure 6 This is a detailed flowchart of a refrigerator control method according to an embodiment of the present application.

[0073] In some embodiments, the second evaporator 14 of the refrigerator is disposed on the main pipeline 30, and the environmental information includes the ambient temperature and relative humidity of the refrigerator, the temperature of the first compartment 101, and the temperature of the second compartment 102. The structure of the refrigeration system 10 is as follows: Figure 1 As shown, the first evaporator 13 and the second evaporator 14 are connected in series and parallel in the refrigeration cycle loop 3. The anti-condensation pipe 2 and the bypass branch 33 are connected in parallel. At the same time, the valve body 4 with on / off and throttling functions is used in combination with the throttling element. The operation of the valve body 4 and the compressor 11 can be controlled according to the environmental information of the refrigerator.

[0074] like Figure 1 As shown, in order to facilitate the description of the opening and closing of each inlet and outlet of valve body 4, the position of the first inlet 41 is marked as "A", the position of the second inlet 42 is marked as "B", the position of the first outlet 43 is marked as "C", and the position of the second outlet 44 is marked as "D".

[0075] like Figure 6 As shown, specifically, only the second room 102 has a cooling requirement. Step S2, controlling the operation of the control valve 4 and compressor 11 based on environmental information, includes the following steps S21 to S22:

[0076] Step S21: Based on the ambient temperature being greater than the ambient temperature threshold T, or based on the ambient relative humidity being greater than the humidity threshold Th, control the first inlet 41 and the second outlet 44 of the control valve body 4 to be connected, and the second inlet 42 and the first outlet 43 to be closed.

[0077] Step S22: Control the second outlet 44 to be fully open if the speed of compressor 11 is greater than the speed threshold f1, or if the temperature of the second chamber 102 is greater than the first temperature threshold T1.

[0078] Step S23: Control the second outlet 44 to be in a throttling state based on the compressor 11 speed being less than or equal to the speed threshold f1, or based on the second chamber 102 temperature being less than or equal to the first temperature threshold T1.

[0079] In this embodiment, when only the second chamber 102 has a cooling requirement, the need for anti-condensation management is first determined based on whether the ambient temperature is greater than the ambient temperature threshold T or the ambient relative humidity is greater than the humidity threshold Th. The first inlet 41 and the second outlet 44 of the control valve body 4 are connected, while the second inlet 42 and the first outlet 43 are closed, i.e., AD is connected and BC is closed. Then, based on the speed of the compressor 11, it is determined whether the second outlet 44 of the control valve body 4 is fully open for high-flow cooling to achieve rapid temperature reduction, or in a throttling state for low-flow cooling to achieve energy-saving operation.

[0080] In some embodiments, since only the second room 102 has a cooling requirement, step S2, controlling the operation of the valve body 4 and compressor 11 based on environmental information, includes:

[0081] Step S24: Based on the ambient temperature being less than or equal to the ambient temperature threshold T, or based on the ambient relative humidity being less than or equal to the humidity threshold Th, the first inlet 41 and the first outlet 43 of the control valve body 4 are closed, and the second inlet 42 and the second outlet 44 are connected.

[0082] Step S25: Control the second outlet 44 to be fully open if the speed of compressor 11 is greater than the speed threshold f1, or if the temperature of the second chamber 102 is greater than the first temperature threshold T1.

[0083] Step S26: Control the second outlet 44 to be in a throttling state based on the compressor 11 speed being less than or equal to the speed threshold f1, or based on the second chamber 102 temperature being less than or equal to the first temperature threshold T1.

[0084] In this embodiment, when only the second chamber 102 has a cooling requirement, it is first determined that anti-condensation management is not needed based on whether the ambient temperature is less than or equal to the ambient temperature threshold T or the ambient relative humidity is less than or equal to the humidity threshold Th. The first inlet 41 and the first outlet 43 of the control valve body 4 are then closed, while the second inlet 42 and the second outlet 44 are connected, i.e., AC is connected and BD is closed, reducing system power consumption. Then, based on the speed of the compressor 11, it is determined whether the second outlet 44 of the control valve body 4 is fully open for high-flow cooling to achieve rapid temperature reduction, or in a throttling state for low-flow cooling to achieve energy-saving operation.

[0085] In some embodiments, based on the cooling demand of the first room 101, step S2, controlling the operation of the valve body 4 and the compressor 11 according to environmental information, includes:

[0086] Step S21': Based on the ambient temperature being greater than the ambient temperature threshold T, or based on the ambient relative humidity being greater than the humidity threshold Th, control the first inlet 41 and the first outlet 43 of the control valve body 4 to be connected, and the second inlet 42 and the second outlet 44 to be closed.

[0087] Step S22': Control the first outlet 43 to be fully open if the speed of the compressor 11 is greater than the speed threshold f1, or if the temperature of the first chamber 101 is greater than the second temperature threshold T2.

[0088] Step S23': Control the first outlet 43 to be in a throttling state based on the compressor 11 speed being less than or equal to the speed threshold f1, or based on the first chamber 101 temperature being less than or equal to the second temperature threshold T2.

[0089] In this embodiment, when the first chamber 101 has a cooling demand, it is first determined that anti-condensation management is needed based on whether the ambient temperature is greater than the ambient temperature threshold T or the ambient relative humidity is greater than the humidity threshold Th. The first inlet 41 and the first outlet 43 of the control valve body 4 are connected, while the second inlet 42 and the second outlet 44 are closed, i.e., AC is connected and BD is closed. Then, based on the speed of the compressor 11, it is determined whether the first outlet 43 of the control valve body 4 is fully open for high-flow cooling to achieve rapid temperature reduction, or in a throttling state for low-flow cooling to achieve energy-saving operation.

[0090] In some embodiments, based on the cooling demand of the first room 101, step S2, controlling the operation of the valve body 4 and the compressor 11 according to environmental information, includes:

[0091] Step S24': Based on the ambient temperature being less than or equal to the ambient temperature threshold T, or based on the ambient relative humidity being less than or equal to the humidity threshold Th, the second inlet 42 and the first outlet 43 of the control valve body 4 are connected, and the first inlet 41 and the second outlet 44 are closed.

[0092] Step S25': Control the first outlet 43 to be fully open if the speed of the compressor 11 is greater than the speed threshold f1, or if the temperature of the first chamber 101 is greater than the second temperature threshold T2.

[0093] Step S26': Control the first outlet 43 to be in a throttling state based on the compressor 11 speed being less than or equal to the speed threshold f1, or based on the first chamber 101 temperature being less than or equal to the second temperature threshold T2.

[0094] In this embodiment, when the first chamber 101 has a cooling demand, it is first determined that anti-condensation management is not required based on whether the ambient temperature is less than or equal to the ambient temperature threshold T or the ambient relative humidity is less than or equal to the humidity threshold Th. The second inlet 42 and the first outlet 43 of the control valve body 4 are then connected, while the first inlet 41 and the second outlet 44 are closed, i.e., BC is connected and AD is closed, reducing system power consumption. Then, based on the speed of the compressor 11, it is determined whether the first outlet 43 of the control valve body 4 is fully open for high-flow cooling to achieve rapid temperature reduction, or in a throttling state for low-flow cooling to achieve energy-saving operation.

[0095] Figure 7 This is a detailed flowchart of a refrigerator control method according to an embodiment of the present application.

[0096] In some embodiments, the second evaporator 14 of the refrigerator is disposed in the second refrigerant branch 32, and the environmental information includes the ambient temperature or relative humidity of the refrigerator, the temperature of the first compartment 101, and the temperature of the second compartment 102. In this case, the structure of the refrigeration system 10 is as follows: Figure 3 As shown, the first evaporator 13 and the second evaporator 14 are arranged in parallel in the refrigeration cycle loop 3. The anti-condensation pipe 2 and the bypass branch 33 are arranged in parallel. At the same time, the valve body 4 with on / off and throttling functions is used in combination with the throttling element, so that the operation of the valve body 4 and the compressor 11 can be controlled according to the environmental information of the refrigerator.

[0097] like Figure 3 As shown, in order to facilitate the description of the opening and closing of each inlet and outlet of valve body 4, the position of the first inlet 41 is marked as "A", the position of the second inlet 42 is marked as "B", the position of the first outlet 43 is marked as "C", and the position of the second outlet 44 is marked as "D".

[0098] like Figure 7 As shown, specifically, step S2, controlling the operation of valve body 4 and compressor 11 based on environmental information, includes:

[0099] Step S21”: Based on the ambient temperature being greater than the ambient temperature threshold T, or based on the ambient relative humidity being greater than the humidity threshold Th, control the first inlet 41 of the valve body 4 to open and the second inlet 42 to close.

[0100] Step S22”: Based on the ambient temperature being less than or equal to the ambient temperature threshold T, or based on the ambient relative humidity being less than or equal to the humidity threshold Th, the second inlet 42 of the control valve body 4 is turned on, and the first inlet 41 is turned off.

[0101] In this embodiment, the system first determines whether condensation heat management is required based on whether the ambient temperature is greater than the ambient temperature threshold T or whether the ambient relative humidity is greater than the humidity threshold Th. Then, it controls the switching between the first inlet 41 and the second inlet 42 of the valve body 4, and then determines the cooling demand of the first compartment 101 and the second compartment 102.

[0102] In some embodiments, when the first compartment has a cooling demand, the first inlet 41 is connected to the first outlet 43, or the second inlet 42 is connected to the first outlet 43. Step S2, controlling the operation of the valve body 4 and the compressor 11 based on environmental information includes:

[0103] Step S23”: The temperature of the first chamber 101 is less than the third temperature threshold T3, and the first outlet 43 is controlled to be in a throttling state;

[0104] Step S24”: When the temperature of the first chamber 101 is greater than or equal to the third temperature threshold T3, the first outlet 43 is controlled to be in the fully open state according to the compressor 11 speed being greater than the speed threshold f1, or according to the temperature of the first chamber 101 being greater than the fourth temperature threshold T4.

[0105] Step S25”: The temperature of the first chamber 101 is greater than or equal to the third temperature threshold T3. Based on the compressor 11 speed being less than or equal to the speed threshold f1, or based on the first chamber 101 temperature being less than or equal to the fourth temperature threshold T4, the first outlet 43 is controlled to be in a throttling state, where the fourth temperature threshold T4 is greater than the third temperature threshold T3.

[0106] In this embodiment, the first evaporator 13 of the first compartment 101 and the second evaporator 14 of the second compartment 102 are each controlled independently. If the first compartment 101 has no cooling demand, or although there is a cooling demand, the compressor 11 operates at a low speed, the first outlet 43 is controlled to be in a throttling state. At this time, depending on whether there is an anti-condensation requirement, the first inlet 41 and the first outlet 43 can be connected (AC connected), or the second inlet 42 and the first outlet 43 can be connected (BC connected). When the cooling demand of the first compartment 101 is urgent, the first outlet 43 is controlled to be in a fully open state. At this time, depending on whether there is an anti-condensation requirement, the first inlet 41 and the first outlet 43 can be connected (AC connected), or the second inlet 42 and the first outlet 43 can be connected (BC connected).

[0107] In some embodiments, the second compartment 102 has a cooling requirement, and the first inlet 41 is connected to the second outlet 44, or the second inlet 42 is connected to the second outlet 44. Step S2, controlling the operation of the valve body 4 and the compressor 11 according to environmental information includes:

[0108] Step S27”: Based on the fact that the temperature of the second chamber 102 is less than the fifth temperature threshold T5, control the second outlet 44 to be in a throttling state;

[0109] Step S28”: Based on the temperature of the second chamber 102 being greater than or equal to the fifth temperature threshold T5, based on the speed of the compressor 11 being greater than the speed threshold f1, or based on the temperature of the second chamber 102 being greater than the sixth temperature threshold T6, control the second outlet 44 to be in the fully open state.

[0110] Step S29”: Based on the temperature of the second chamber 102 being greater than or equal to the fifth temperature threshold T5, based on the speed of the compressor 11 being less than or equal to the speed threshold f1, or based on the temperature of the second chamber 102 being less than or equal to the sixth temperature threshold T6, control the second outlet 44 to be in a throttling state, wherein the sixth temperature threshold T6 is greater than the fifth temperature threshold T5.

[0111] In this embodiment, the first evaporator 13 of the first compartment 101 and the second evaporator 14 of the second compartment 102 are each controlled independently. If the second compartment 102 has no cooling demand, or although there is a cooling demand, the compressor 11 operates at a low speed, the second outlet 44 is controlled to be in a throttling state. At this time, depending on whether there is an anti-condensation requirement, the first inlet 41 and the second outlet 44 can be connected (AD connected), or the second inlet 42 and the second outlet 44 can be connected (BD connected). When the cooling demand of the second compartment 102 is urgent, the second outlet 44 is controlled to be in a fully open state. At this time, depending on whether there is an anti-condensation requirement, the first inlet 41 and the second outlet 44 can be connected (AD connected), or the second inlet 42 and the second outlet 44 can be connected (BD connected).

[0112] It is understood that the values ​​of the first temperature threshold T1, the second temperature threshold T2, the third temperature threshold T3, the fourth temperature threshold T4, the fifth temperature threshold T5, and the sixth temperature threshold T6 in the embodiments of this application are not fixed values. The values ​​of the ambient temperature threshold T and the rotation speed threshold f1 are not fixed values ​​and can be adjusted according to different products and usage environments, which will not be elaborated further.

[0113] In some embodiments, the refrigerator control method further includes:

[0114] Step S3: Before the compressor 11 starts running, open the valve body 4 and control the first outlet 43 and the second outlet 44 to be fully open;

[0115] Step S4: After compressor 11 stops, close valve body 4.

[0116] When valve body 4 and compressor 11 start simultaneously, the system pipeline has a pressure difference and the compressor 11 has a large discharge pressure, which will impact valve body 4 and reduce its lifespan. Therefore, in this embodiment, valve body 4 is opened before compressor 11 starts, and both the first outlet 43 and the second outlet 44 of valve body 4 are fully open to balance system pressure and prevent damage due to excessive pressure at startup. After compressor 11 stops, valve body 4 is closed to cut off the refrigerant flow, maintaining the pressure difference between condenser 12 and the first evaporator 13 and second evaporator 14. This prevents the high-temperature refrigerant in condenser 12 from vaporizing and absorbing heat from the outside due to pressure reduction, thereby reducing system energy loss and further achieving energy-saving effects.

[0117] Therefore, the refrigerator control method in the various embodiments of this application, by setting the first evaporator 13 for cooling the first compartment 101 and the second evaporator 14 for cooling the second compartment 102 in a series-parallel or parallel manner in the refrigeration cycle loop 3, and setting the anti-condensation pipe 2 and the bypass branch 33 in parallel, and by using a valve body with on / off and throttling functions, can control the operation of the valve body and the compressor according to the refrigerator's environmental information. Since only one valve body 4 is used to achieve a balance in terms of condensation heat management, cooling speed and energy-saving operation, the control logic is simple and conducive to improving the stability of system operation.

[0118] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A refrigeration system characterized by, The application relates to a refrigeration system. The refrigeration system comprises: an anti-condensation pipe; a refrigeration assembly comprising a compressor, a condenser, a first evaporator and a second evaporator; a refrigeration cycle circuit comprising a main pipe and a first refrigerant branch, a second refrigerant branch and a bypass branch which are respectively communicated with the main pipe, the first refrigerant branch and the second refrigerant branch are arranged in parallel, the first evaporator is arranged in the first refrigerant branch, the outlet of the first evaporator and the outlet of the second refrigerant branch are both communicated with the inlet of the second evaporator, the second evaporator, the compressor, the condenser and the anti-condensation pipe are sequentially arranged in the main pipe, and the bypass branch is arranged in parallel with the anti-condensation pipe; and 2. The refrigeration system of claim 1, wherein, a valve body arranged at the connection between the first refrigerant branch and the second refrigerant branch and the main pipe, the valve body has a first inlet, a second inlet, a first outlet and a second outlet, the first inlet is communicated with the outlet of the anti-condensation pipe, the second inlet is communicated with the bypass branch, the first outlet is communicated with the first refrigerant branch, the second outlet is communicated with the second refrigerant branch, and the first outlet and the second outlet both have a fully-open state, a throttling state and a closed state, wherein the first inlet can be selectively communicated with any one of the first outlet and the second outlet, or the second inlet can be selectively communicated with any one of the first outlet and the second outlet.

3. A refrigeration system comprising a first compartment and a freezer compartment, characterized in that, The refrigeration assembly further comprises a first throttling element and / or a second throttling element, the first throttling element is arranged in the first refrigerant branch and communicated with the inlet of the first evaporator, and the second throttling element is arranged in the second refrigerant branch. The refrigeration system comprises: an anti-condensation pipe; a refrigeration assembly comprising a compressor, a condenser, a first evaporator and a second evaporator; a refrigeration cycle circuit comprising a main pipe and a first refrigerant branch, a second refrigerant branch and a bypass branch which are respectively communicated with the main pipe, the first refrigerant branch and the second refrigerant branch are arranged in parallel, the first evaporator is arranged in the first refrigerant branch, the second evaporator is arranged in the second refrigerant branch, the outlet of the first evaporator and the outlet of the second evaporator are both communicated with the inlet of the compressor, the compressor, the condenser and the anti-condensation pipe are all arranged in the main pipe, and the bypass branch is arranged in parallel with the anti-condensation pipe; and a valve body having a first inlet, a second inlet, a first outlet and a second outlet, the first inlet is communicated with the outlet of the anti-condensation pipe, the second inlet is communicated with the bypass branch, the first outlet is communicated with the first refrigerant branch, the second outlet is communicated with the second refrigerant branch, the first outlet and the second outlet both have a fully-open state, a throttling state and a closed state, wherein the first inlet can be selectively communicated with any one of the first outlet and the second outlet, or the second inlet can be selectively communicated with any one of the first outlet and the second outlet.

4. The refrigeration system of claim 3, wherein, The refrigeration assembly further comprises a first throttling element and / or a second throttling element, the first throttling element is arranged in the first refrigerant branch and in communication with the inlet of the first evaporator, and the second throttling element is arranged in the second refrigerant branch and in communication with the inlet of the second evaporator.

5. The refrigeration system of any of claims 1 to 4, wherein, The valve body comprises a valve seat and a valve block arranged coaxially, an end surface of the valve seat is provided with the first inlet, the second inlet, the first outlet and the second outlet which are distributed in a circumferential direction, the first inlet and the second inlet are arranged on a circumference with the center axis of the valve seat as a center and a first length as a radius, the first outlet and the second outlet are arranged on a circumference with the center axis of the valve seat as a center and a second length as a radius, and the first length is greater than the second length; the first outlet comprises a first through hole and a first arc-shaped slot in communication with the first through hole, and the second outlet comprises a second through hole and a second arc-shaped slot in communication with the second through hole; The valve block comprises a connecting portion and first and second notches arranged on the connecting portion, the connecting portion is attached to the end surface of the valve seat and can rotate relative to the valve seat, so that the first notch can selectively communicate with any one of the first inlet and the second inlet, and the second notch can selectively communicate with any one of the first outlet and the second outlet, wherein when the second notch communicates with the first through hole, the first outlet is in a fully open state; when the second notch communicates with the second through hole, the second outlet is in a fully open state; when the second notch communicates with the first arc-shaped slot, the first outlet is in a throttling state; when the second notch communicates with the second arc-shaped slot, the second outlet is in a throttling state; when the connecting portion covers the first outlet except the second notch, the first outlet is in a closed state; and when the connecting portion covers the second outlet except the second notch, the second outlet is in a closed state.

6. The refrigeration system of claim 5, wherein, Further comprising a filtering device, an inlet of the filtering device is in communication with the condenser, a first output end of the filtering device is in communication with the inlet of the anti-condensation pipe, and a second output end of the filtering device is in communication with the bypass branch.

7. A refrigerator characterized by comprising: Comprise: a cabinet, wherein a first chamber and a second chamber are arranged in the cabinet; The refrigeration system according to any one of claims 1-6, wherein the first evaporator of the refrigeration system is arranged in the first chamber, and the second evaporator is arranged in the second chamber; a sensor assembly for detecting environmental information of the refrigerator; and a controller electrically connected with the sensor assembly, the compressor and the valve body of the refrigeration system, and configured to control the valve body and the compressor to operate according to the environmental information. The control method comprises:

8. A control method of a refrigerator applied to the refrigerator of claim 7, characterized in that, obtaining environmental information of the refrigerator; controlling the valve body and the compressor to operate according to the environmental information. ​ 9.The control method of a refrigerator according to claim 8, characterized in that, The second evaporator of the refrigerator is arranged in the main pipeline, the environmental information includes the environmental temperature and the environmental relative humidity of the refrigerator, the temperature of the first compartment and the temperature of the second compartment, only the second compartment has a refrigeration demand, and the control of the valve body and the compressor according to the environmental information includes: According to the environmental temperature being greater than an environmental temperature threshold value or according to the environmental relative humidity being greater than a humidity threshold value, the first inlet of the valve body is controlled to be in communication with the second outlet, and the second inlet is controlled to be closed to the first outlet; According to the rotational speed of the compressor being greater than a rotational speed threshold value or according to the temperature of the freezing compartment being greater than a first temperature threshold value, the second outlet is controlled to be in a fully open state; According to the rotational speed of the compressor being less than or equal to the rotational speed threshold value or according to the temperature of the second compartment being less than or equal to the first temperature threshold value, the second outlet is controlled to be in a throttling state. 10.The control method of a refrigerator according to claim 8, characterized in that, Only the freezing compartment has a refrigeration demand, and the control of the valve body and the compressor according to the environmental information includes: According to the environmental temperature being less than or equal to an environmental temperature threshold value or according to the environmental relative humidity being less than or equal to a humidity threshold value, the first inlet of the valve body is controlled to be closed to the first outlet, and the second inlet is controlled to be in communication with the second outlet; According to the rotational speed of the compressor being greater than a rotational speed threshold value or according to the temperature of the second compartment being greater than a first temperature threshold value, the second outlet is controlled to be in a fully open state; According to the rotational speed of the compressor being less than or equal to the rotational speed threshold value or according to the temperature of the second compartment being less than or equal to the first temperature threshold value, the second outlet is controlled to be in a throttling state. 11.The control method of a refrigerator according to claim 8, characterized in that, According to the first compartment having a refrigeration demand, the control of the valve body and the compressor according to the environmental information includes: According to the environmental temperature being greater than an environmental temperature threshold value or according to the environmental relative humidity being greater than a humidity threshold value, the first inlet of the valve body is controlled to be in communication with the first outlet, and the second inlet is controlled to be closed to the second outlet; According to the rotational speed of the compressor being greater than a rotational speed threshold value or according to the temperature of the first compartment being greater than a second temperature threshold value, the first outlet is controlled to be in a fully open state; According to the rotational speed of the compressor being less than or equal to the rotational speed threshold value or according to the temperature of the first compartment being less than or equal to the second temperature threshold value, the first outlet is controlled to be in a throttling state. 12.The control method of a refrigerator according to claim 8, characterized in that, According to the first compartment having a refrigeration demand, the control of the valve body and the compressor according to the environmental information includes: According to the environmental temperature being less than or equal to an environmental temperature threshold value or according to the environmental relative humidity being less than or equal to a humidity threshold value, the second inlet of the valve body is controlled to be in communication with the first outlet, and the first inlet is controlled to be closed to the second outlet; According to the rotational speed of the compressor being greater than a rotational speed threshold value or according to the temperature of the first compartment being greater than a second temperature threshold value, the first outlet is controlled to be in a fully open state; According to the rotational speed of the compressor being less than or equal to the rotational speed threshold value or according to the temperature of the first compartment being less than or equal to the second temperature threshold value, the first outlet is controlled to be in a throttling state. 13.The control method of a refrigerator according to claim 8, characterized in that, The second evaporator of the refrigerator is arranged in a second refrigerant branch, the environmental information comprises an environmental temperature or an environmental relative humidity of the refrigerator, a temperature of the first compartment and a temperature of the second compartment, and the controlling the valve body and the compressor according to the environmental information comprises: controlling the first inlet of the valve body to be open and the second inlet to be closed according to the environmental temperature being greater than an environmental temperature threshold value or according to the environmental relative humidity being greater than a humidity threshold value; controlling the second inlet of the valve body to be open and the first inlet to be closed according to the environmental temperature being less than or equal to the environmental temperature threshold value or according to the environmental relative humidity being less than or equal to the humidity threshold value. 14.The control method of a refrigerator according to claim 13, characterized in that, controlling the first inlet to be open with the first outlet or the second inlet to be open with the first outlet according to the first compartment having a refrigeration demand, and the controlling the valve body and the compressor according to the environmental information comprises: controlling the first outlet to be in a throttling state according to the temperature of the first compartment being less than a third temperature threshold value; controlling the first outlet to be in a fully open state according to the rotational speed of the compressor being greater than a rotational speed threshold value or according to the temperature of the first compartment being greater than a fourth temperature threshold value according to the temperature of the first compartment being greater than or equal to the third temperature threshold value; controlling the first outlet to be in a throttling state according to the rotational speed of the compressor being less than or equal to the rotational speed threshold value or according to the temperature of the first compartment being less than or equal to the fourth temperature threshold value according to the temperature of the first compartment being greater than or equal to the third temperature threshold value, wherein the fourth temperature threshold value is greater than the third temperature threshold value. 15.The control method of a refrigerator according to claim 13, characterized in that, controlling the first inlet to be open with the second outlet or the second inlet to be open with the second outlet according to the second compartment having a refrigeration demand, and the controlling the valve body and the compressor according to the environmental information comprises: controlling the second outlet to be in a throttling state according to the temperature of the second compartment being less than a fifth temperature threshold value; controlling the second outlet to be in a fully open state according to the rotational speed of the compressor being greater than a rotational speed threshold value or according to the temperature of the second compartment being greater than a sixth temperature threshold value according to the temperature of the second compartment being greater than or equal to the fifth temperature threshold value; controlling the second outlet to be in a throttling state according to the rotational speed of the compressor being less than or equal to the rotational speed threshold value or according to the temperature of the second compartment being less than or equal to the sixth temperature threshold value according to the temperature of the second compartment being greater than or equal to the fifth temperature threshold value, wherein the sixth temperature threshold value is greater than the fifth temperature threshold value. 16.The control method of a refrigerator according to claim 8, characterized in that, The control method further comprises: opening the valve body before the compressor is operated and controlling the first outlet and the second outlet to be in a fully open state; closing the valve body after the compressor is stopped.

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