Liquid separator, refrigerating system and refrigerator

Abstract

The invention provides a liquid separator, a refrigerating system and a refrigerator, the refrigerator comprises a refrigeration chamber, a freezing evaporator and a refrigeration evaporator, the liquid separator comprises a shell, the shell is provided with a containing space, a liquid inlet, a freezing outlet and a refrigeration outlet which are communicated, the containing space is used for containing a refrigerant, and the liquid inlet is used for containing the refrigerant; the freezing outlet is communicated with the freezing evaporator, and the refrigeration outlet is connected with the refrigeration evaporator in an openable and closable manner; and the liquid level of the freezing outlet is higher than that of the refrigerating outlet. According to the liquid separator, due to the fact that the liquid level at the freezing outlet is higher than the liquid level at the refrigerating outlet, the refrigerant flow at the refrigerating outlet is larger than the refrigerant flow at the freezing outlet, the refrigerant is supplied to the refrigerating evaporator preferentially, and the temperature pull-down speed of the refrigerating chamber is guaranteed.

Description

Technical Field

[0001] This application belongs to the technical field of refrigerators, and particularly relates to a liquid distributor, a refrigeration system, and a refrigerator. Background Art

[0002] In the existing dual-system refrigerator, when the ambient temperature is relatively high, the refrigeration demand of the freezing compartment is usually high. Therefore, the freezing branch is usually in an open state, and the refrigerating branch is opened when the refrigerating compartment has a refrigeration demand. This refrigeration system has the problem that it is difficult to lower the temperature of the refrigerating compartment when the ambient temperature is high. Summary of the Invention

[0003] Embodiments of this application provide a liquid distributor, a refrigeration system, and a refrigerator to solve the problem that in the existing dual-system refrigerator, when the ambient temperature is high, the freezing branch is usually in an open state, and the refrigerating branch is opened when the refrigerating compartment has a refrigeration demand, resulting in difficulty in lowering the temperature of the refrigerating compartment.

[0004] Embodiments of this application provide a liquid distributor applied to a refrigerator. The refrigerator includes a refrigerating compartment, a freezing evaporator, and a refrigerating evaporator. The liquid distributor includes:

[0005] A housing that forms a communicating accommodation space, a liquid inlet, a freezing outlet, and a refrigerating outlet. The accommodation space is used to accommodate refrigerant. The freezing outlet is communicated with the freezing evaporator, and the refrigerating outlet is connected to the refrigerating evaporator in an openable and closable manner; the liquid level at the freezing outlet is higher than the liquid level at the refrigerating outlet;

[0006] Wherein, when the temperature of the refrigerating compartment is higher than a first preset temperature, the refrigerating outlet is communicated with the refrigerating evaporator; when the temperature of the refrigerating compartment is lower than a second preset temperature, the refrigerating outlet is disconnected from the refrigerating evaporator, and the first preset temperature is higher than the second preset temperature.

[0007] Optionally, it further includes a control valve, which is disposed at the refrigerating outlet in an openable and closable manner to control the opening and closing of the refrigerating outlet.

[0008] Optionally, the opening degree of the control valve is adjustable.

[0009] Optionally, the housing extends along the gravity direction, and the housing is further provided with a freezing conduit that extends along the gravity direction and at least part of which is located in the accommodation space. One end of the freezing conduit located in the accommodation space forms the freezing outlet;

[0010] The refrigerating outlet is located at the bottom of the housing.

[0011] Optionally, a movable sleeve is sleeved on the outer periphery of the freezing conduit, and the movable sleeve can move along the axial direction of the freezing conduit.

[0012] Optionally, the housing is further provided with a refrigerating conduit which extends along the direction of gravity from the refrigerating outlet.

[0013] Optionally, the housing extends in the horizontal direction, the refrigerating outlet is located at the bottom of the housing, the freezing outlet is located at the end face of one end of the housing, and the height of the freezing outlet is higher than that of the refrigerating outlet;

[0014] The housing is further provided with a freezing conduit and a refrigerating conduit. The refrigerating conduit extends along the direction of gravity from the refrigerating outlet, and the freezing conduit extends in the horizontal direction from the freezing outlet.

[0015] An embodiment of the present application further provides a refrigeration system applied to a refrigerator. The refrigeration system includes a one-way valve, a refrigerating capillary tube, a freezing capillary tube, a refrigerating evaporator, and a freezing evaporator;

[0016] For the liquid distributor as described above, the refrigerating outlet, the one-way valve, the refrigerating capillary tube, and the refrigerating evaporator are sequentially communicated, and the freezing outlet, the freezing capillary tube, and the freezing evaporator are sequentially communicated.

[0017] An embodiment of the present application further provides a refrigeration system applied to a refrigerator, including: the refrigeration system includes an electronic expansion valve, a freezing capillary tube, a refrigerating evaporator, and a freezing evaporator;

[0018] For the liquid distributor as described above, the refrigerating outlet, the electronic expansion valve, and the refrigerating evaporator are sequentially communicated, and the freezing outlet, the freezing capillary tube, and the freezing evaporator are sequentially communicated.

[0019] An embodiment of the present application further provides a refrigerator, including a refrigerating compartment, a freezing evaporator, a refrigerating evaporator, and the liquid distributor as described above.

[0020] The liquid distributor provided by the embodiment of the present application has a liquid level at the freezing outlet higher than that at the refrigerating outlet. Therefore, when the refrigerating branch and the freezing branch are both opened, if the liquid level in the accommodation space of the liquid distributor is lower than the liquid level at the freezing outlet, the refrigerant in the accommodation space will flow from the refrigerating outlet to the refrigerating evaporator, giving priority to supplying the refrigerating evaporator. If the liquid level in the accommodation space of the liquid distributor is higher than the liquid level at the freezing outlet, due to the height difference in liquid levels between the refrigerating outlet and the freezing outlet, the pressure at the refrigerating outlet will be greater than the pressure at the freezing outlet. Therefore, the refrigerant flow rate at the refrigerating outlet will be greater than the refrigerant flow rate at the freezing outlet to give priority to supplying the refrigerating evaporator. That is, when the refrigerating outlet is connected to the refrigerating evaporator, the refrigerant in the liquid distributor can always give priority to supplying the refrigerating evaporator, preventing the migration loss caused by the migration of the refrigerant between the freezing branch and the refrigerating branch, which may lead to a slow drop in the temperature of the refrigerating compartment due to a small supply of refrigerant in the refrigerating branch. Even when the ambient temperature of the refrigerator is relatively high and the freezing branch is always open, the refrigerant flow rate at the refrigerating outlet can be greater than the refrigerant flow rate at the freezing outlet to make up for the migration loss of the refrigerant and ensure the speed of temperature drop in the refrigerating compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

[0022] In order to more comprehensively understand the present application and its beneficial effects, the following will be described in conjunction with the drawings. Among them, the same reference numerals represent the same parts in the following description.

[0023] Figure 1 FIG. is a schematic structural diagram of a liquid distributor provided by an embodiment of the present application.

[0024] Figure 2 FIG. is another schematic structural diagram of a liquid distributor provided by an embodiment of the present application.

[0025] Figure 3 FIG. is another schematic structural diagram of a liquid distributor provided by an embodiment of the present application.

[0026] Figure 4 FIG. is a schematic structural diagram of a refrigeration system provided by an embodiment of the present application.

[0027] Figure 5 FIG. is another schematic structural diagram of a refrigeration system provided by an embodiment of the present application.

[0028] Figure 6 FIG. is another schematic structural diagram of a refrigeration system provided by an embodiment of the present application.

[0029] Figure 7 Another structural schematic diagram of the refrigeration system provided by the embodiment of the present application.

[0030] Explanation of the reference numerals:

[0031] 1. Liquid distributor; 11. Housing; 111. Accommodating space; 112. Liquid inlet; 113. Freezing outlet; 114. Refrigerating outlet; 12. Control valve; 13. Freezing conduit; 131. Movable sleeve; 14. Refrigerating conduit;

[0032] 2. Compressor; 3. Condenser; 4. Filter; 5. Freezing capillary; 6. Refrigerating capillary; 7. One-way valve; 8. Electronic expansion valve; 9. Refrigerating evaporator; 10. Freezing evaporator. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0034] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0035] In the description of the present application, it should be noted that unless otherwise clearly defined or limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0037] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0038] The embodiments of the present application provide a liquid distributor, a refrigeration system, and a refrigerator to solve the problem that in an existing dual-system refrigerator, when the ambient temperature is relatively high, the freezing branch is usually in an always-open state, and the refrigerating branch is opened when there is a refrigeration demand in the refrigerating compartment, resulting in difficulty in lowering the temperature of the refrigerating compartment. The following will be described in conjunction with the accompanying drawings.

[0039] The liquid distributor 1 provided by the embodiments of the present application is applied to a refrigerator. The refrigerator includes a refrigerating compartment, a freezing evaporator 10, and a refrigerating evaporator 9. Please refer to Figures 1 to 3, the liquid distributor 1 includes a housing 11. The housing 11 is formed with a communicating accommodation space 111, a liquid inlet 112, a freezing outlet 113, and a refrigerating outlet 114. The accommodation space 111 is used to accommodate refrigerant. The freezing outlet 113 is communicated with the freezing evaporator 10, and the refrigerating outlet 114 is connected to the refrigerating evaporator 9 in an openable and closable manner; the liquid level at the freezing outlet 113 is higher than the liquid level at the refrigerating outlet 114; wherein, when the temperature of the refrigerating compartment is higher than the first preset temperature, the refrigerating outlet 114 is communicated with the refrigerating evaporator 9, and when the temperature of the refrigerating compartment is lower than the second preset temperature, the refrigerating outlet 114 is disconnected from the refrigerating evaporator 9, and the first preset temperature is higher than the second preset temperature. The specific values of the first preset temperature and the second preset temperature are not further limited herein.

[0040] In the liquid distributor 1 provided by the embodiment of the present application, since the liquid level at the freezing outlet 113 is higher than the liquid level at the refrigerating outlet 114, when the refrigerating branch and the freezing branch are both opened, if the liquid level in the accommodation space 111 of the liquid distributor 1 is lower than the liquid level at the freezing outlet 113, the refrigerant in the accommodation space 111 will flow from the refrigerating outlet 114 to the refrigerating evaporator 9, realizing preferential supply to the refrigerating evaporator 9. If the liquid level in the accommodation space 111 of the liquid distributor 1 is higher than the liquid level at the freezing outlet 113, due to the liquid level height difference between the refrigerating outlet 114 and the freezing outlet 113, the pressure at the refrigerating outlet 114 will be greater than the pressure at the freezing outlet 113. Therefore, the refrigerant flow rate at the refrigerating outlet 114 will be greater than the refrigerant flow rate at the freezing outlet 113 to realize preferential supply to the refrigerating evaporator 9. That is, when the refrigerating outlet 114 is communicated with the refrigerating evaporator 9, the refrigerant in the liquid distributor 1 can always realize preferential supply to the refrigerating evaporator 9, preventing the migration loss caused by the migration of the refrigerant between the freezing branch and the refrigerating branch, resulting in the problem that the refrigerant supply amount of the refrigerating branch is small and the temperature drop of the refrigerating compartment is slow. Even in the state where the ambient temperature of the refrigerator is high and the freezing branch is always open, the refrigerant flow rate at the refrigerating outlet 114 can be greater than the refrigerant flow rate at the freezing outlet 113 to make up for the migration loss of the refrigerant and ensure the temperature drop speed of the refrigerating compartment.

[0041] Optionally, please refer to Figure 1 , the liquid distributor 1 provided by the embodiment of the present application further includes a control valve 12. The control valve 12 is disposed at the refrigerating outlet 114 in an openable and closable manner for controlling the opening and closing of the refrigerating outlet 114. By providing the control valve 12 at the refrigerating outlet 114, the openable and closable connection between the refrigerating outlet 114 and the refrigerating evaporator 9 is realized. The control valve 12 is only opened when the refrigerating compartment has a refrigeration requirement, so that the refrigerating outlet 114 is communicated with the refrigerating evaporator 9, and the refrigeration effect on the refrigerating compartment is realized.

[0042] Optionally, the opening degree of the control valve 12 is adjustable. In some examples, the control valve 12 can be a solenoid valve, and the type of the solenoid valve is not further limited herein.

[0043] Optionally, refer to Figure 1 and Figure 2 , the housing 11 extends along the gravity direction. The housing 11 is further provided with a freezing conduit 13, and the freezing conduit 13 extends along the gravity direction and is at least partially located in the accommodation space 111. One end of the freezing conduit 13 located in the accommodation space 111 forms a freezing outlet 113; the refrigerating outlet 114 is located at the bottom of the housing 11. That is, the liquid distributor 1 can be placed vertically for use. At this time, the freezing conduit 13 can also be vertically arranged. Specifically, there can be a certain distance between the freezing conduit 13 and the top of the liquid distributor 1, which not only satisfies the liquid level difference between the freezing outlet 113 and the refrigerating outlet 114, but also reduces the requirement for the refrigerant liquid level in the liquid distributor 1 during the refrigeration of the freezing compartment.

[0044] Furthermore, a part of the freezing conduit 13 can extend outside the liquid distributor 1 for connection with the freezing evaporator 10. Specifically, the part of the freezing conduit 13 extending outside the liquid distributor 1 is first connected to the freezing capillary 5, and the other end of the freezing capillary 5 is then connected to the freezing evaporator 10.

[0045] Optionally, refer to Figure 2 , a movable sleeve 131 is sleeved on the outer periphery of the freezing conduit 13, and the movable sleeve 131 can move along the axial direction of the freezing conduit 13. By sleeving the movable sleeve 131 on the outer periphery of the freezing conduit 13, the movement of the movable sleeve 131 along the axial direction of the freezing conduit 13 can be controlled, so as to realize the adjustable height of the freezing outlet 113, and further change the height difference between the freezing outlet 113 and the refrigerating outlet 114, so as to change the relative refrigerant flow rates at the freezing outlet 113 and the refrigerating outlet 114. For example, when the temperature of the refrigerating compartment rises too high, resulting in a large refrigeration demand for the refrigerating compartment, the movable sleeve 131 can be appropriately raised to further reduce the pressure difference at the freezing outlet 113, so as to increase the pressure difference between the refrigerating outlet 114 and the freezing outlet 113, and further increase the refrigerant flow rate at the refrigerating outlet 114, realizing the rapid temperature drop of the refrigerating compartment.

[0046] By sleeving the movable sleeve 131 on the outer periphery of the freezing conduit 13, the length of the freezing conduit 13 can be set shorter. Therefore, when there is no refrigeration demand in the refrigerating compartment, the movable sleeve 131 is directly lowered to form the freezing outlet 113 with the original opening of the freezing conduit 13, minimizing the height of the freezing outlet 113, so as to reduce the requirement for the refrigerant liquid level in the liquid distributor 1 during the refrigeration of the freezing compartment. At the same time, reducing the height of the freezing outlet 113 also increases the pressure at the freezing outlet 113, and further increases the refrigerant flow rate at the freezing outlet 113, facilitating the improvement of the refrigeration efficiency of the freezing compartment.

[0047] Optionally, the housing 11 is further provided with a refrigerating conduit 14, and the refrigerating conduit 14 extends along the gravity direction from the refrigerating outlet 114. By providing the refrigerating conduit 14, it is convenient to connect with the refrigerating evaporator 9.

[0048] Optionally, refer to Figure 3 , the housing 11 extends in the horizontal direction, the refrigeration outlet 114 is located at the bottom of the housing 11, the freezing outlet 113 is located at the end face of one end of the housing 11, and the height of the freezing outlet 113 is higher than the height of the refrigeration outlet 114; the housing 11 is further provided with a freezing conduit 13 and a refrigeration conduit 14, the refrigeration conduit 14 extends along the gravity direction from the refrigeration outlet 114, and the freezing conduit 13 extends along the horizontal direction from the freezing outlet 113.

[0049] That is, the housing 11 can also be placed horizontally for use, which can be more conveniently assembled into the compressor 2 bin. At this time, the refrigeration conduit 14 can be vertically arranged at the bottom of the liquid distributor 1 housing 11, and at the same time, the freezing conduit 13 can be arranged on one side of the housing 11 to realize the height difference setting between the refrigeration outlet 114 and the freezing outlet 113, without extending the refrigeration conduit 14 or the freezing conduit 13 into the accommodation space 111, reducing the manufacturing difficulty.

[0050] Furthermore, the refrigeration conduit 14 includes a first pipe section, a transition pipe and a second pipe section. The first pipe section is connected to the housing 11, the transition pipe connects the first pipe section and the second pipe section, and the inner diameter of the first pipe section is larger than the inner diameter of the second pipe section. Exemplarily, the inner diameter of the first pipe section can be 6 mm to increase the refrigerant liquid separation amount of the refrigeration conduit 14. By providing the second pipe section with a smaller inner diameter, it is convenient to communicate with the refrigeration capillary 6, that is, the second pipe section of the refrigeration conduit 14, the refrigeration capillary 6, and the refrigeration evaporator 9 are connected in sequence. Among them, the transition pipe is used for the transition connection between the first pipe section and the second pipe section, and the shape of the transition pipe is not further limited here. For example, it can be a tapered pipe.

[0051] Optionally, for the liquid distributor 1 provided in the embodiment of the present application, the housing 11 is further provided with a liquid inlet pipe. One end of the liquid inlet pipe is communicated with the liquid inlet 112, and the other end is communicated with the upstream device of the liquid distributor 1, such as the filter 4. Among them, the liquid inlet 112 is arranged at one end of the housing 11 far from the refrigeration outlet 114 and the freezing outlet 113.

[0052] The embodiment of the present application also provides a refrigeration system. Please refer to Figure 4 and Figure 5, applied to a refrigerator, the refrigeration system includes a one-way valve 7, a refrigerating capillary tube 6, a freezing capillary tube 5, a refrigerating evaporator 9, and a freezing evaporator 10; as the above-mentioned liquid distributor 1, the liquid distributor 1 includes a housing 11, and the housing 11 forms a communicating accommodation space 111, a liquid inlet 112, a freezing outlet 113, and a refrigerating outlet 114. The accommodation space 111 is used to accommodate the refrigerant. The freezing outlet 113 is communicated with the freezing evaporator 10, and the refrigerating outlet 114 is openably connected to the refrigerating evaporator 9; the liquid level at the freezing outlet 113 is higher than the liquid level at the refrigerating outlet 114; wherein, when the temperature of the refrigerating compartment is higher than the first preset temperature, the refrigerating outlet 114 is communicated with the refrigerating evaporator 9, and when the temperature of the refrigerating compartment is lower than the second preset temperature, the refrigerating outlet 114 is disconnected from the refrigerating evaporator 9, and the first preset temperature is higher than the second preset temperature. Among them, the refrigerating outlet 114, the one-way valve 7, the refrigerating capillary tube 6, and the refrigerating evaporator 9 are sequentially communicated, and the freezing outlet 113, the freezing capillary tube 5, and the freezing evaporator 10 are sequentially communicated.

[0053] By arranging only one one-way valve 7 in the above refrigeration system to cooperate with the liquid distributor 1, the adjustment of the refrigerant distribution amount of the refrigerating evaporator 9 and the freezing evaporator 10 can be realized, without arranging a one-way valve 7 on both the refrigerating branch and the freezing branch to respectively control the opening and closing of the refrigerating branch and the freezing branch, saving one one-way valve 7 and reducing the cost.

[0054] Optionally, the liquid distributor 1 and the filter 4 can also be made into one body, and no further description is made here.

[0055] Optionally, the refrigeration system further includes a compressor 2, a condenser 3, and a filter 4 connected in sequence. The filter 4 is connected to the liquid inlet 112 of the condenser 3 and the liquid distributor 1. Further, the refrigeration system further includes a return air pipe.

[0056] In some examples, please refer to Figure 4 , the refrigerating evaporator 9 and the freezing evaporator 10 are connected in series and parallel, that is, one end of the refrigerating evaporator 9 far from the refrigerating capillary tube 6 is first connected to the freezing evaporator 10, and the freezing evaporator 10 is then connected to the compressor 2 through the return air pipe to form a closed loop.

[0057] In other examples, please refer to Figure 5 , the refrigerating evaporator 9 and the freezing evaporator 10 are connected in parallel, that is, one end of the return air pipe is connected to both the refrigerating evaporator 9 and the freezing evaporator 10, and the other end is connected to the compressor 2.

[0058] The embodiment of the present application also provides a refrigeration system, please refer to Figure 6 and Figure 7, applied to a refrigerator, including: The refrigeration system includes an electronic expansion valve 8, a freezing capillary 5, a refrigerating evaporator 9, and a freezing evaporator 10; The liquid distributor 1 as described above, the liquid distributor 1 includes a housing 11, the housing 11 forms a communicating accommodation space 111, a liquid inlet 112, a freezing outlet 113, and a refrigerating outlet 114. The accommodation space 111 is used to accommodate the refrigerant. The freezing outlet 113 is communicated with the freezing evaporator 10, and the refrigerating outlet 114 is connected to the refrigerating evaporator 9 in an openable and closable manner; The liquid level at the freezing outlet 113 is higher than the liquid level at the refrigerating outlet 114; Wherein, when the temperature of the refrigerating compartment is higher than the first preset temperature, the refrigerating outlet 114 is communicated with the refrigerating evaporator 9. When the temperature of the refrigerating compartment is lower than the second preset temperature, the refrigerating outlet 114 is disconnected from the refrigerating evaporator 9, and the first preset temperature is higher than the second preset temperature. Wherein, the refrigerating outlet 114, the electronic expansion valve 8, and the refrigerating evaporator 9 are connected in sequence, and the freezing outlet 113, the freezing capillary 5, and the freezing evaporator 10 are connected in sequence.

[0059] In the above refrigeration system, the refrigerating capillary is saved on the refrigerating branch. The electronic expansion valve 8 replaces the one-way valve and the refrigerating capillary, which not only ensures the opening and closing control function and the throttling function, but also reduces the manufacturing cost.

[0060] Optionally, the liquid distributor 1 and the filter 4 can also be made into one body, and no further description is made here.

[0061] Optionally, the refrigeration system further includes a compressor 2, a condenser 3, and a filter 4 connected in sequence. The filter 4 is connected to the liquid inlet 112 of the condenser 3 and the liquid distributor 1. Further, the refrigeration system further includes a suction pipe.

[0062] In some examples, please refer to Figure 6 , the refrigerating evaporator 9 and the freezing evaporator 10 are connected in series and parallel, that is, one end of the refrigerating evaporator 9 far from the electronic expansion valve 8 is first communicated with the freezing evaporator 10, and the freezing evaporator 10 is then communicated with the compressor 2 through the suction pipe to form a closed loop.

[0063] In other examples, please refer to Figure 7 , the refrigerating evaporator 9 and the freezing evaporator 10 are connected in parallel, that is, one end of the suction pipe is communicated with both the refrigerating evaporator 9 and the freezing evaporator 10, and the other end is communicated with the compressor 2.

[0064] An embodiment of the present application further provides a refrigerator, which includes a refrigerating compartment, a freezing evaporator 10, a refrigerating evaporator 9, and the distributor 1 as described above. The distributor 1 includes a housing 11, and the housing 11 is formed with a communicating accommodation space 111, a liquid inlet 112, a freezing outlet 113, and a refrigerating outlet 114. The accommodation space 111 is used to accommodate refrigerant. The freezing outlet 113 is communicated with the freezing evaporator 10, and the refrigerating outlet 114 is connected to the refrigerating evaporator 9 in an openable and closable manner; the liquid level at the freezing outlet 113 is higher than the liquid level at the refrigerating outlet 114; wherein, when the temperature of the refrigerating compartment is higher than a first preset temperature, the refrigerating outlet 114 is communicated with the refrigerating evaporator 9, and when the temperature of the refrigerating compartment is lower than a second preset temperature, the refrigerating outlet 114 is disconnected from the refrigerating evaporator 9, and the first preset temperature is higher than the second preset temperature.

[0065] For the distributor 1 provided in the embodiment of the present application, since the liquid level at the freezing outlet 113 is higher than the liquid level at the refrigerating outlet 114, when the refrigerating branch and the freezing branch are both opened, the refrigerant flow rate at the refrigerating outlet 114 will be greater than the refrigerant flow rate at the freezing outlet 113, so as to preferentially meet the refrigeration demand of the refrigerating compartment, prevent the migration loss caused by the migration of the refrigerant between the freezing branch and the refrigerating branch, and prevent the problem that the refrigerant supply amount of the refrigerating branch is small and the temperature drop of the refrigerating compartment is slow. Even when the ambient temperature of the refrigerator is relatively high and the freezing branch is always open, the refrigerant flow rate at the refrigerating outlet 114 can be greater than the refrigerant flow rate at the freezing outlet 113 to make up for the migration loss of the refrigerant and ensure the temperature drop speed of the refrigerating compartment.

[0066] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0067] The distributor, the refrigeration system, and the refrigerator provided in the embodiments of the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A liquid dispenser, applied to a refrigerator, the refrigerator comprising a refrigerating compartment, a freezing evaporator and a refrigerating evaporator, characterized in that: The liquid dispenser comprises: A shell, wherein the shell is formed with a communicating accommodation space, a liquid inlet, a freezing outlet and a refrigerating outlet, the accommodation space is used to accommodate a refrigerant, the freezing outlet is communicated with the freezing evaporator, and the refrigerating outlet is openably connected with the refrigerating evaporator; the liquid level at the freezing outlet is higher than the liquid level at the refrigerating outlet; When the temperature of the refrigerated compartment is higher than a first preset temperature, the refrigerated outlet is connected to the refrigerated evaporator, and when the temperature of the refrigerated compartment is lower than a second preset temperature, the refrigerated outlet is disconnected from the refrigerated evaporator. The first preset temperature is higher than the second preset temperature.

2. The liquid dispenser according to claim 1, characterized in that: It also includes a control valve, which is openably and closably arranged at the refrigerated outlet and is used to control the opening and closing of the refrigerated outlet.

3. The liquid dispenser according to claim 2, characterized in that: The opening degree of the control valve is adjustable.

4. The liquid dispenser according to claim 1, characterized in that: The shell extends in the direction of gravity, and is further provided with a freezing conduit, which extends in the direction of gravity and is at least partially located in the accommodation space, and one end of the freezing conduit located in the accommodation space forms the freezing outlet; The refrigeration outlet is located at the bottom of the shell.

5. The liquid dispenser according to claim 4, characterized in that: A movable sleeve is sleeved on the outer periphery of the freezing catheter, and the movable sleeve can move along the axial direction of the freezing catheter.

6. The liquid dispenser according to claim 4, characterized in that: The shell is also provided with a refrigeration conduit, and the refrigeration conduit extends from the refrigeration outlet along the gravity direction.

7. The liquid dispenser according to claim 1, characterized in that: The shell extends in a horizontal direction, the refrigeration outlet is located at the bottom of the shell, the freezing outlet is located at an end surface of one end of the shell, and the height of the freezing outlet is higher than the height of the refrigeration outlet; The shell is further provided with a freezing conduit and a refrigerating conduit. The refrigerating conduit extends from the refrigerating outlet in the direction of gravity, and the freezing conduit extends from the refrigerating outlet in the horizontal direction.

8. A refrigeration system, applied to a refrigerator, characterized in that: The refrigeration system includes a one-way valve, a refrigerating capillary tube, a freezing capillary tube, a refrigerating evaporator, and a freezing evaporator; According to the liquid dispenser as described in any one of claims 1 to 7, the refrigerated outlet, the one-way valve, the refrigerated capillary and the refrigerated evaporator are connected in sequence, and the frozen outlet, the frozen capillary and the frozen evaporator are connected in sequence.

9. A refrigeration system, applied to a refrigerator, characterized in that: include: The refrigeration system includes an electronic expansion valve, a freezing capillary tube, a refrigeration evaporator, and a freezing evaporator; According to the liquid dispenser as described in any one of claims 1 to 7, the refrigerated outlet, the electronic expansion valve and the refrigerated evaporator are connected in sequence, and the frozen outlet, the frozen capillary and the frozen evaporator are connected in sequence.

10. A refrigerator, characterized in that: The invention comprises a refrigerating compartment, a freezing evaporator and a refrigerating evaporator, and a liquid dispenser as claimed in any one of claims 1 to 7.

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