CN220338771U - Refrigerator system and refrigerator - Google Patents

Abstract

The application relates to the technical field of intelligent household appliances and discloses a refrigerator system. The system comprises: the refrigeration cycle loop comprises a compressor exhaust port, a condenser, a throttling device, a freezing evaporator, a refrigerating evaporator and a compressor return air port which are sequentially communicated; the auxiliary refrigeration branch is connected in parallel to a first pipeline between the refrigeration evaporator and the air return port of the compressor; the auxiliary refrigeration branch comprises an auxiliary refrigeration evaporator, and the evaporation area is changed by switching on or switching off the auxiliary refrigeration branch. The auxiliary refrigeration branch is arranged in the refrigeration circulation loop to change the evaporation area of the refrigeration compartment. Under the condition that the load of the refrigerating compartment is large, the auxiliary refrigerating branch is conducted, so that the auxiliary refrigerating evaporator works, and the area of the refrigerating evaporator is increased. In this way, the temperature reduction rate of the refrigerating compartment can be increased, so that the refrigerating effect of the refrigerating compartment is improved. The application also discloses a refrigerator.

Description

Refrigerator system and refrigerator

Technical Field

The application relates to the technical field of intelligent household appliances, for example, to a refrigerator system and a refrigerator.

Background

Under the condition that the load of the refrigerating room is large, the temperature of the refrigerating room is high, and the refrigerating effect of the refrigerating room is affected.

In order to improve the refrigerating effect of the refrigerating compartment, a mechanical control refrigerator with a double temperature controller is disclosed in the related art, and comprises a compressor unit, a condenser, an electromagnetic valve, a temperature controller, a refrigerating evaporator and a freezing evaporator, wherein an outlet of the compressor unit is connected with an inlet of the condenser, and an outlet of the condenser is connected with an inlet of the electromagnetic valve; the temperature controller is electrically connected with the compressor unit; the temperature controller comprises a refrigeration temperature controller and a freezing temperature controller, and the freezing temperature controller is connected with the refrigeration temperature controller in parallel; the refrigeration temperature controller is electrically connected with the electromagnetic valve; the first outlet of the electromagnetic valve is connected with the refrigerating evaporator, and the second outlet of the electromagnetic valve is connected with the freezing evaporator.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: the related art can control the refrigerating chamber independently according to the refrigerating temperature controller to achieve the purpose of adjusting the temperature of the refrigerating chamber. However, in the related art, when the load of the refrigerating chamber is large, the temperature of the refrigerating chamber cannot be quickly reduced, so that the refrigerating effect of the refrigerating chamber is still poor.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a refrigerator system and a refrigerator, which are used for accelerating the temperature reduction rate of a refrigerating compartment under the condition that the load of the refrigerating compartment is large, so that the refrigerating effect of the refrigerating compartment is improved.

In some embodiments, the refrigerator system comprises: the refrigeration cycle loop comprises a compressor exhaust port, a condenser, a throttling device, a freezing evaporator, a refrigerating evaporator and a compressor return air port which are sequentially communicated; the auxiliary refrigeration branch is connected in parallel to a first pipeline between the refrigeration evaporator and the air return port of the compressor; the auxiliary refrigeration branch comprises an auxiliary refrigeration evaporator, and the evaporation area is changed by switching on or switching off the auxiliary refrigeration branch.

Optionally, the auxiliary refrigeration branch further includes: an auxiliary pipeline, one end of which is communicated with a first position of the first pipeline, and the other end of which is communicated with a second position of the first pipeline, wherein the first position is close to the refrigeration evaporator; the auxiliary refrigeration evaporator is connected in series with the auxiliary pipeline; the first control valve is connected with the auxiliary pipeline; and the auxiliary refrigeration branch is switched on or off by switching on or off the first control valve.

Optionally, the refrigerator system further comprises: and the second control valve is connected into the pipeline section between the first position and the second position of the first pipeline, and is turned on or off to turn on or off the pipeline section.

Optionally, the refrigerator system further comprises: a bypass pipeline, the first end of which is communicated with the pipeline at the inlet end of the condenser, and the second end of which is communicated with the pipeline at the inlet end of the refrigeration evaporator; a third control valve connected to the bypass line; and the bypass pipeline is turned on or off by the on or off of the third control valve.

Optionally, the refrigerator system further comprises: a one-way valve arranged on a pipeline between the freezing evaporator and the refrigerating evaporator for limiting the flow of the refrigerant from the freezing evaporator to the refrigerating evaporator; in the case of the refrigerator system comprising the bypass line, the one-way valve is disposed in the line between the freezing evaporator and the second end of the bypass line.

Optionally, the refrigerator system further comprises: the temperature sensor is arranged on the refrigeration evaporator and used for acquiring the temperature of the refrigeration evaporator; the signal input end of the controller is connected with the temperature signal output end of the temperature sensor, and the control output end of the controller is electrically connected with the first control valve; and controlling the first control valve to be turned on or turned off according to the temperature signal of the temperature sensor.

Optionally, when the refrigerator system further includes a second control valve, the control output end of the controller is electrically connected to the second control valve, and the controller is further configured to adjust the opening of the second control valve when the first control valve is controlled to be turned on.

Optionally, in the case that the refrigerator system includes a third control valve, a control output of the controller is electrically connected to the third control valve; and controlling the third control valve to be turned on or turned off according to the temperature signal of the temperature sensor.

Optionally, the refrigerator system further comprises: and a filter drier connected to the pipeline between the condenser and the freezing evaporator.

In some embodiments, the refrigerator comprises a refrigerator system as described above.

The refrigerator system and the refrigerator provided by the embodiment of the disclosure can realize the following technical effects:

the auxiliary refrigeration branch is arranged in the refrigeration circulation loop to change the evaporation area of the refrigeration compartment. Under the condition that the load of the refrigerating compartment is large, the auxiliary refrigerating branch is conducted, so that the auxiliary refrigerating evaporator works, and the area of the refrigerating evaporator is increased. In this way, the temperature reduction rate of the refrigerating compartment can be increased, so that the refrigerating effect of the refrigerating compartment is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic diagram of a refrigerator system provided in an embodiment of the present disclosure;

fig. 2 is a schematic diagram of another refrigerator system provided in an embodiment of the present disclosure;

fig. 3 is a schematic diagram of another refrigerator system provided in an embodiment of the present disclosure;

fig. 4 is a schematic diagram of another refrigerator system provided in an embodiment of the present disclosure;

fig. 5 is a schematic diagram of another refrigerator system according to an embodiment of the present disclosure.

Reference numerals:

200 a refrigerator system;

10 a refrigeration cycle circuit; a 101 compressor; 1011 compressor discharge ports; 1012 compressor return air port; 102 a condenser; 103 a throttle device; 104 freezing the evaporator; 105 refrigeration evaporator; 106 a first conduit; 1061 a first position; 1062 a second position;

20 auxiliary refrigeration branches; 201 auxiliary refrigeration evaporator; 202 auxiliary pipelines; 203 a first control valve;

a second control valve 30;

40 bypass line;

a third control valve 50;

60 one-way valve;

a 70 temperature sensor;

80 a controller;

90 drying the filter;

100 muffler.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

Under the condition that the load of the refrigerating room is large, the temperature of the refrigerating room is high, and the refrigerating effect of the refrigerating room is affected. In order to improve the refrigerating effect of the refrigerating compartment, a mechanical control refrigerator with a double temperature controller is disclosed in the related art, and comprises a compressor unit, a condenser, an electromagnetic valve, a temperature controller, a refrigerating evaporator and a freezing evaporator, wherein an outlet of the compressor unit is connected with an inlet of the condenser, and an outlet of the condenser is connected with an inlet of the electromagnetic valve; the temperature controller is electrically connected with the compressor unit; the temperature controller comprises a refrigeration temperature controller and a freezing temperature controller, and the freezing temperature controller is connected with the refrigeration temperature controller in parallel; the refrigeration temperature controller is electrically connected with the electromagnetic valve; the first outlet of the electromagnetic valve is connected with the refrigerating evaporator, and the second outlet of the electromagnetic valve is connected with the freezing evaporator. The related art can control the refrigerating chamber independently according to the refrigerating temperature controller to achieve the purpose of adjusting the temperature of the refrigerating chamber. However, in the related art, when the load of the refrigerating chamber is large, the temperature of the refrigerating chamber cannot be quickly reduced, so that the refrigerating effect of the refrigerating chamber is still poor.

As shown in connection with fig. 1, embodiments of the present disclosure provide a refrigerator system 200 that includes a refrigeration cycle 10 and an auxiliary refrigeration branch 20. The refrigeration cycle 10 includes a compressor discharge port 1011, a condenser 102, a throttle device 103, a freezing evaporator 104, a refrigerating evaporator 105, and a compressor return port 1012, which are sequentially communicated. The auxiliary refrigeration branch 20 is connected in parallel to the first conduit 106 between the refrigeration evaporator 105 and the compressor return 1012; the auxiliary refrigeration branch 20 includes an auxiliary refrigeration evaporator 201, by which the auxiliary refrigeration branch 20 is turned on or off to vary the evaporation area.

The embodiment of the present disclosure provides a refrigerator system 200 that changes the evaporation area of a refrigerating compartment by providing an auxiliary refrigerating branch 20 in a refrigerating cycle circuit 10. When the load of the refrigerating compartment is large, the auxiliary refrigerating branch 20 is turned on, so that the auxiliary refrigerating evaporator 201 operates, and the refrigerating evaporation area is increased. In this way, the temperature reduction rate of the refrigerating compartment can be increased, so that the refrigerating effect of the refrigerating compartment is improved.

Optionally, as shown in conjunction with fig. 2 and 3, the auxiliary refrigeration branch 20 further includes: an auxiliary line 202 and a first control valve 203. The auxiliary line 202 communicates at one end with a first location 1061 of the first line 106 and at the other end with a second location 1062 of the first line 106, wherein the first location 1061 is proximate to the refrigeration evaporator 105. An auxiliary refrigeration evaporator 201 is connected in series to the auxiliary line 202. A first control valve 203 is connected to the auxiliary line 202. The auxiliary refrigeration branch 20 is turned on or off by the turning on or off of the first control valve 203.

In this embodiment, the first control valve 203 is provided in the auxiliary line 202, and the auxiliary refrigeration branch 20 is turned on or off by controlling the on or off of the first control valve 203. In case of a large load of the refrigerating compartment, which indicates a high temperature of the refrigerating compartment, the first control valve 203 is controlled to be turned on to realize the conduction of the auxiliary refrigerating branch 20. Thus, the auxiliary refrigeration evaporator 201 and the refrigeration evaporator 105 are connected in series to work together, so that the evaporation area of the refrigeration compartment is increased, and the refrigeration efficiency of the refrigeration compartment is improved. In case the temperature of the refrigerating compartment is at the set temperature of the refrigerating compartment, the first control valve 203 is controlled to be closed to achieve the cut-off of the auxiliary refrigerating branch 20. Thus, the refrigerating evaporator 105 is operated alone, and the refrigerating efficiency of the refrigerating compartment can be satisfied.

Optionally, as shown in connection with fig. 3, the freezer system 200 also includes a second control valve 30. The second control valve 30 is connected to the line segment between the first position 1061 and the second position 1062 of the first line 106 to turn the line segment on or off.

In this embodiment, the second control valve 30 is disposed in the line segment between the first position 1061 and the second position 1062 of the first line 106, and the second control valve 30 is controlled to be turned on or off to achieve the on or off of the line segment. In the case of a high load in the cold room, which means a high temperature in the cold room, the second control valve 30 is controlled to close in order to achieve a shut-off of the line section. Thereby, the refrigerant flowing through the refrigeration evaporator 105 directly flows into the auxiliary refrigeration evaporator 201, so that the refrigerant flowing through the refrigeration evaporator 105 is prevented from being split, and the refrigeration effect of the refrigeration compartment is further improved.

Optionally, as shown in connection with fig. 4, the freezer system 200 further includes: a bypass line 40 and a third control valve 50. The bypass line 40 is in communication at a first end with the line at the inlet end of the condenser 102 and at a second end with the line at the inlet end of the refrigerated evaporator 105. A third control valve 50 is connected to the bypass line 40. The bypass line 40 is turned on or off by turning on or off the third control valve 50.

In this embodiment, a third control valve 50 is provided in the bypass line 40, and the bypass line 40 is turned on or off by turning on or off the third control valve 50. In the case where the temperature of the refrigerating compartment is low, the third control valve 50 is controlled to be turned on to achieve the conduction of the bypass line 40. Thereby, the refrigerant with high temperature and high pressure flowing out from the compressor 101 directly flows into the refrigeration evaporator 105, the refrigeration evaporator 105 is subjected to temperature compensation, the heating efficiency of the refrigeration evaporator 105 is improved, and the structure is simple and easy to realize.

Optionally, as shown in connection with fig. 4, the freezer system 200 also includes a one-way valve 60. The check valve 60 is disposed in a line between the freezing evaporator 104 and the refrigerating evaporator 105, and restricts the flow of refrigerant from the freezing evaporator 104 to the refrigerating evaporator 105. Where the freezer system 200 includes the bypass line 40, the one-way valve 60 is disposed in the line between the refrigeration evaporator 104 and the second end of the bypass line 40.

In this embodiment, a check valve 60 is provided in the line between the freeze evaporator 104 and the refrigeration evaporator 105 to control the flow of refrigerant from the freeze evaporator 104 to the refrigeration evaporator 105. The condition that the refrigerant flows back in the pipeline can be avoided, so that the high-temperature and high-pressure refrigerant flowing out of the compressor 101 can be better compensated for the temperature of the refrigeration evaporator 105.

Optionally, as shown in connection with fig. 4, the freezer system 200 also includes a dry filter 90. The drier-filter 90 is connected to a pipeline between the condenser 102 and the freeze evaporator 104.

In this embodiment, by providing the dry filter 90 in the pipe between the condenser 102 and the freezing evaporator 104, it is possible to filter out foreign substances such as metal filings, various kinds of oxides, dust, etc. in the refrigeration cycle 10 to prevent the foreign substances from clogging the refrigeration cycle 10 or damaging the compressor 101, to improve the safety and reliability of the refrigerator system 200.

Optionally, as shown in connection with fig. 4, the freezer system 200 also includes an air return 100. The return air duct 100 is disposed between the compressor return air port 1012 and the refrigeration evaporator 105, and between the compressor return air port 1012 and the auxiliary refrigeration branch 20.

In this embodiment, the refrigeration cycle 10 passes through the refrigeration evaporator 105 and the auxiliary refrigeration branch 20 before delivering the refrigerant treated by the dry filter 90 to the compressor return port 1012 via the return air pipe 100. In this way, the refrigerant passing through the refrigeration evaporator 105 and the auxiliary refrigeration branch 20 can increase the temperature of the return air when passing through the return air pipe 100, thereby reducing the power of the compressor 101 and prolonging the service life of the compressor 101.

Optionally, as shown in connection with fig. 5, the freezer system 200 further includes: a temperature sensor 70 and a controller 80. The temperature sensor 70 is disposed at the refrigeration evaporator 105 for acquiring the temperature of the refrigeration evaporator 105. The signal input end of the controller 80 is connected with the temperature signal output end of the temperature sensor 70, and the control output end of the controller 80 is electrically connected with the first control valve 203. The first control valve 203 is controlled to be turned on or off according to a temperature signal of the temperature sensor 70.

In this embodiment, by providing the temperature sensor 70 in the refrigeration evaporator 105, the real-time temperature of the refrigeration evaporator 105 can be accurately and intuitively obtained. The on or off of the first control valve 203 is controlled by the controller 80 to enable the on or off of the first control valve 203 to be controlled according to the temperature signal of the temperature sensor 70.

Optionally, as shown in connection with fig. 5, in the case that the refrigerator system 200 further includes the second control valve 30, a control output terminal of the controller 80 is electrically connected to the second control valve 30, and the controller 80 is further configured to adjust the opening degree of the second control valve 30 when the first control valve 203 is controlled to be turned on. In this embodiment, when the temperature of the refrigerating compartment is equal to or lower than the set temperature, the controller 80 controls the second control valve 30 to be in a normally open state so that the refrigerant flows through the refrigeration cycle 10. In case that the temperature of the refrigerating compartment is greater than the set temperature, the controller 80 controls the first control valve 203 to be turned on to achieve the conduction of the auxiliary refrigerating branch 20, and the controller 80 controls the flow rate of the refrigerant of the pipe section by adjusting the opening degree of the second control valve 30. In the case of a higher temperature of the refrigerating compartment, the controller 80 adjusts the opening degree of the second control valve 30 to be smaller until the second control valve 30 is closed, i.e., the shut-off of the line section is achieved. In this way, on the one hand, the auxiliary refrigeration evaporator 201 and the refrigeration evaporator 105 are connected in series to operate together, so that the evaporation area of the refrigeration compartment is increased, and the refrigeration efficiency of the refrigeration compartment is improved. On the other hand, the flow rate of the refrigerant flowing into the auxiliary refrigeration evaporator 201 can be flexibly controlled according to the temperature of the refrigerating compartment while reducing the split flow of the refrigerant flowing through the refrigeration evaporator 105. The refrigerating effect of the refrigerating compartment can be more improved by controlling the first control valve 203 and the second control valve 30 by the controller 80.

Alternatively, as shown in connection with fig. 5, in the case where the refrigerator system 200 includes the third control valve 50, the control output of the controller 80 is electrically connected to the third control valve 50; the third control valve 50 is controlled to be turned on or off according to a temperature signal of the temperature sensor 70.

In this embodiment, in the case where the temperature of the refrigerating compartment is low, the controller 80 controls the third control valve 50 to be turned on to achieve the conduction of the bypass line 40. Thereby, the refrigerant with high temperature and high pressure flowing out from the compressor 101 directly flows into the refrigeration evaporator 105, and the refrigeration evaporator 105 is subjected to temperature compensation, so that the heating efficiency of the refrigeration evaporator 105 can be better improved, the structure is simple and easy to realize, the energy consumption is reduced, and the resources are saved.

Embodiments of the present disclosure provide a refrigerator, including the refrigerator system 200 described above.

In this embodiment, the refrigerator includes the refrigerator system 200 described above. By providing the auxiliary refrigeration branch 20 in the refrigerator system 200 to increase the evaporation area of the refrigeration compartment of the refrigerator under a heavy load, the temperature of the refrigeration compartment can be rapidly reduced. By providing the bypass line 40 in the refrigerator system 200 so that the refrigerant of high temperature and high pressure flowing out of the compressor 101 directly flows into the refrigerating evaporator 105 when the temperature of the refrigerating compartment of the refrigerator is low, the temperature of the refrigerating evaporator 105 is compensated, and the temperature of the refrigerating compartment can be quickly raised. Thus, the refrigerating effect of the refrigerating compartment can be improved.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes.

The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary.

Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed.

Furthermore, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements.

In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.

The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A refrigerator system, comprising:

the refrigeration cycle loop comprises a compressor exhaust port, a condenser, a throttling device, a freezing evaporator, a refrigerating evaporator and a compressor return air port which are sequentially communicated;

the auxiliary refrigeration branch is connected in parallel to a first pipeline between the refrigeration evaporator and the air return port of the compressor; the auxiliary refrigeration branch comprises an auxiliary refrigeration evaporator, and the evaporation area is changed by switching on or switching off the auxiliary refrigeration branch.

2. The refrigerator system of claim 1, wherein the auxiliary refrigeration branch further comprises:

an auxiliary pipeline, one end of which is communicated with a first position of the first pipeline, and the other end of which is communicated with a second position of the first pipeline, wherein the first position is close to the refrigeration evaporator; the auxiliary refrigeration evaporator is connected in series with the auxiliary pipeline;

the first control valve is connected with the auxiliary pipeline;

and the auxiliary refrigeration branch is switched on or off by switching on or off the first control valve.

3. The refrigerator system of claim 2, further comprising:

and the second control valve is connected into the pipeline section between the first position and the second position of the first pipeline, and is turned on or off to turn on or off the pipeline section.

4. The refrigerator system of claim 3, further comprising:

a bypass pipeline, the first end of which is communicated with the pipeline at the inlet end of the condenser, and the second end of which is communicated with the pipeline at the inlet end of the refrigeration evaporator;

a third control valve connected to the bypass line;

and the bypass pipeline is turned on or off by the on or off of the third control valve.

5. The refrigerator system of claim 4, further comprising:

a one-way valve arranged on a pipeline between the freezing evaporator and the refrigerating evaporator for limiting the flow of the refrigerant from the freezing evaporator to the refrigerating evaporator;

in the case of the refrigerator system comprising the bypass line, the one-way valve is disposed in the line between the freezing evaporator and the second end of the bypass line.

6. The refrigerator system of claim 4, further comprising:

the temperature sensor is arranged on the refrigeration evaporator and used for acquiring the temperature of the refrigeration evaporator;

the signal input end of the controller is connected with the temperature signal output end of the temperature sensor, and the control output end of the controller is electrically connected with the first control valve; and controlling the first control valve to be turned on or turned off according to the temperature signal of the temperature sensor.

7. The refrigerator system of claim 6, wherein the control output of the controller is electrically connected to the second control valve in the case where the refrigerator system further includes the second control valve, the controller further configured to adjust the opening degree of the second control valve when the first control valve is controlled to be turned on.

8. The refrigerator system of claim 6, wherein, in the case where the refrigerator system includes the third control valve, a control output of the controller is electrically connected to the third control valve; and controlling the third control valve to be turned on or turned off according to the temperature signal of the temperature sensor.

9. The refrigerator system of any one of claims 1 to 4 further comprising:

and a filter drier connected to the pipeline between the condenser and the freezing evaporator.

10. A refrigerator comprising the refrigerator system of any one of claims 1 to 9.