Condenser, refrigerator and control method of refrigerator

Abstract

The application provides a condenser, a refrigerator and a control method of the refrigerator. The condenser comprises a condenser pipe, a first pipe body and a second pipe body, and a connecting part; a collecting pipe is connected between the connecting part and the filter in an openable and closable manner; when the liquid level in the connecting part is higher than a first set value, the collecting pipe is opened, and liquid refrigerant in the condenser pipe enters the filter from the connecting part through the collecting pipe; when the liquid level in the connecting part is lower than a second set value, the collecting pipe is closed, and gas-liquid mixed refrigerant in the condenser pipe enters the filter from the connecting part through the second pipe body. The condenser provided by the application can directly introduce liquid refrigerant into the filter through the collecting pipe when the liquid level in the connecting part is relatively high, and the liquid refrigerant no longer enters the filter through the second pipe body, so that the content of liquid refrigerant in the gas-liquid mixed refrigerant in the condenser pipe is reduced, and pulsation noise of the condenser pipe is avoided.

Description

Technical Field

[0001] This application belongs to the field of refrigerator technology, and particularly relates to a condenser, a refrigerator, and a refrigerator control method. Background Technology

[0002] The main function of a refrigerator condenser is to dissipate heat from inside the refrigerator to the outside, maintaining a stable temperature in the refrigerator and freezer compartments. In the condenser, the refrigerant is typically in a gas-liquid mixture, and the condenser tube is usually a U-shaped tube, meaning the refrigerant moves in both rising and falling states. When the refrigerant is predominantly liquid, the liquid refrigerant is affected by gravity, rising more slowly and falling more quickly, resulting in a significant difference in speed and potentially causing pulsating noise in the condenser. Summary of the Invention

[0003] This application provides a condenser, a refrigerator, and a control method for the refrigerator to solve the problem that when the liquid refrigerant accounts for a large proportion of the gas-liquid mixture in the existing refrigerator condenser, pulsating noise is easily caused in the condenser during the flow process.

[0004] This application provides a condenser for use in a refrigerator, the refrigerator including a filter, and a gas-liquid mixed refrigerant inside the refrigerator flowing from the condenser to the filter. The condenser includes:

[0005] The condenser includes a first tube and a second tube that are arranged opposite to each other and both extend along the direction of gravity, and a connecting part that connects the first tube and the second tube. A gas-liquid mixed refrigerant descends along the first tube, enters the connecting part, and then rises along the second tube.

[0006] A liquid collection tube is closable and connectable between the connection and the filter;

[0007] When the liquid level in the connection is higher than a first set value, the liquid collecting pipe opens, and the liquid refrigerant in the condenser enters the filter from the connection through the liquid collecting pipe, while the gaseous refrigerant in the condenser enters the filter from the connection through the second pipe body; when the liquid level in the connection is lower than a second set value, the liquid collecting pipe closes, and the gas-liquid mixed refrigerant in the condenser enters the filter from the connection through the second pipe body.

[0008] Optionally, it also includes a liquid level sensor disposed within the connection portion. The liquid level sensor is used to monitor the liquid level within the connection portion and transmit a liquid level signal to the processor of the refrigerator, so that the processor of the refrigerator controls the opening and closing of the liquid collection pipe according to the liquid level signal.

[0009] Optionally, the connecting part is U-shaped, and the liquid level sensor is disposed at the bottom of the U-shaped connecting part.

[0010] Optionally, it also includes an electrically controlled valve, which is closable at the connection between the liquid collecting pipe and the connecting part, and the electrically controlled valve controls the opening and closing of the liquid collecting pipe.

[0011] Optionally, it also includes a connecting pipe that connects the connecting part to the liquid collecting pipe, and the electrically controlled valve is disposed inside the connecting pipe.

[0012] Optionally, the first tube, the connecting part, and the second tube each include multiple tubes, and are connected sequentially in the order of the first tube, the connecting part, and the second tube. Each connecting part located below the first tube along the direction of gravity is connected to the liquid collecting tube.

[0013] This application also provides a refrigerator, including:

[0014] A compressor is used to output a gas-liquid mixture of refrigerant;

[0015] Filter;

[0016] As described above, the condenser is connected between the compressor and the filter. The gas-liquid mixed refrigerant output by the compressor is condensed by the condenser and then enters the filter.

[0017] Optionally, the filter has an opening, through which the second tube or the liquid collecting tube communicates with the filter, and in the direction of gravity, the opening is located below the condenser tube and the liquid collecting tube.

[0018] This application embodiment also provides a control method for a refrigerator. The refrigerator includes a condenser and a filter. The condenser includes a first tube and a second tube that are disposed opposite to each other and both extend along the direction of gravity, and a connecting portion connecting the first tube and the second tube. The condenser also includes a liquid collecting pipe that is closably connected between the connecting portion and the filter. The control method includes:

[0019] Turn on the cooling mode and obtain the liquid level in the connecting part;

[0020] When the liquid level in the connection is higher than the first set value, the liquid collection pipe is opened so that the liquid refrigerant in the condenser enters the filter from the connection through the liquid collection pipe, and the gaseous refrigerant in the condenser enters the filter from the connection through the second pipe body.

[0021] When the liquid level in the connection is lower than the second set value, the liquid collection pipe is closed so that the gas-liquid mixed refrigerant in the condenser tube enters the filter from the connection through the second pipe body.

[0022] Optionally, the condenser coil of the refrigerator includes multiple first tubes, the connecting portion, and the second tube, which are connected sequentially in the order of the first tube, the connecting portion, and the second tube. Each connecting portion located below the first tube along the direction of gravity is connected to the liquid collection pipe through an electrically controlled valve. The control method of the refrigerator includes:

[0023] Obtain the liquid level within each of the aforementioned connecting parts;

[0024] The connection part with a liquid level higher than a first set value is identified as the first target connection part;

[0025] Open the electrically controlled valve corresponding to the first target connection part, and along the flow direction of the gas-liquid mixed refrigerant, determine the connection part located upstream of the first target connection part and adjacent to the first target connection part as the second target connection part;

[0026] When the liquid level in the second target connection is higher than the third set value, the electronically controlled valve corresponding to the second target connection opens. The third set value is less than the first set value but greater than the second set value.

[0027] The condenser provided in this embodiment includes a condenser tube and a liquid collector tube. When the liquid level in the connection of the condenser tube is higher than a first set value, the liquid refrigerant in the condenser tube enters the filter from the connection through the liquid collector tube, and the gaseous refrigerant enters the filter from the connection through the second tube. That is, when the liquid level in the connection is high, the liquid refrigerant is directly introduced into the filter through the liquid collector tube in advance, without entering the filter through the second tube. This reduces the liquid refrigerant content in the gas-liquid mixture in the condenser tube without affecting the condenser's condensation efficiency. Because the liquid refrigerant content is reduced, the gas-liquid mixture is less affected by gravity, and the speed difference between its rising and falling is smaller, thus avoiding pulsating noise in the condenser tube. Simultaneously, when the liquid level in the connection of the condenser tube is lower than the second set value, the liquid collector tube is closed to prevent excessive liquid refrigerant loss, which could lead to a decrease in pressure within the condenser tube and consequently a slow flow rate of the mixed refrigerant, reducing refrigeration efficiency. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0030] Figure 1 This is a schematic diagram of the condenser provided in an embodiment of this application.

[0031] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0032] Figure 3 This is a schematic diagram of the condenser installed on a refrigerator according to an embodiment of this application.

[0033] Figure 4 This is a structural block diagram of a refrigerator provided in an embodiment of this application.

[0034] Figure 5 A flowchart illustrating the refrigerator control method provided in this application embodiment.

[0035] Figure 6 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Condenser; 11. First tube body; 12. Second tube body; 13. Connecting part;

[0038] 2. Liquid collecting tube;

[0039] 3. Liquid level sensor;

[0040] 4. Electrically controlled valves;

[0041] 5. Connecting pipe;

[0042] 6. Box body. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0044] This application provides a condenser, a refrigerator, and a control method for the refrigerator to solve the problem that when the liquid refrigerant accounts for a large proportion of the gas-liquid mixture in the existing refrigerator condenser, pulsating noise is easily caused in the condenser during the flow process. The following will be described in conjunction with the accompanying drawings.

[0045] The condenser provided in this embodiment is applied to a refrigerator. Please refer to [link / reference]. Figure 1 and Figure 2 , Figure 1This is a schematic diagram of the condenser provided in an embodiment of this application. Figure 2 for Figure 1 The enlarged view at point A shows a refrigerator including a filter. A gas-liquid mixture of refrigerant flows from the condenser to the filter. The condenser includes a condenser tube 1 and a collection tube 2. The condenser tube 1 includes a first tube 11 and a second tube 12, both arranged opposite each other and extending in the direction of gravity, and a connecting portion 13 connecting the first tube 11 and the second tube 12. The gas-liquid mixture descends along the first tube 11 into the connecting portion 13 and then rises along the second tube 12. The collection tube 2 is closable between the connecting portion 13 and the filter. When the liquid level in the connecting portion 13 is higher than a first set value, the collection tube 2 opens, and the liquid refrigerant in the condenser tube 1 enters the filter from the connecting portion 13 via the collection tube 2. The gaseous refrigerant in the condenser tube 1 also enters the filter from the connecting portion 13 via the second tube 12. When the liquid level in the connecting portion 13 is lower than a second set value, the collection tube 2 closes, and the gas-liquid mixture of refrigerant in the condenser tube 1 enters the filter from the connecting portion 13 via the second tube 12.

[0046] The condenser provided in this embodiment includes a condenser tube 1 and a liquid collecting pipe 2. When the liquid level in the connection portion 13 of the condenser tube 1 is higher than a first set value, the liquid refrigerant in the condenser tube 1 enters the filter from the connection portion 13 through the liquid collecting pipe 2, and the gaseous refrigerant enters the filter from the connection portion 13 through the second pipe body 12. That is, when the liquid level in the connection portion 13 is high, the liquid refrigerant is directly introduced into the filter through the liquid collecting pipe 2 in advance, without entering the filter through the second pipe body 12. This reduces the liquid refrigerant content in the gas-liquid mixture in the condenser tube 1 without affecting the condenser's condensation efficiency. Because the liquid refrigerant content is reduced, the gas-liquid mixture is less affected by gravity, and the speed difference between rising and falling is smaller, thus avoiding pulsating noise in the condenser tube 1. Simultaneously, when the liquid level in the connection portion 13 of the condenser tube 1 is lower than the second set value, the liquid collecting pipe 2 is closed to prevent excessive liquid refrigerant loss from reducing the pressure in the condenser tube 1, which would lead to a slow flow rate of the mixed refrigerant and reduce refrigeration efficiency.

[0047] It should be noted that when the liquid level in the connection part 13 is higher than the first set value, the liquid collection pipe 2 is opened, and the liquid refrigerant in the condenser pipe 1 enters the filter from the connection part 13 through the liquid collection pipe 2. When the gaseous refrigerant in the condenser pipe 1 enters the filter from the connection part 13 through the second pipe body 12, due to the pressure of the airflow, some liquid refrigerant will enter the second pipe body 12 along with the gaseous refrigerant and finally enter the filter. This phenomenon is within the normal range and does not affect the discharge of most of the liquid refrigerant from the connection part 13 to the liquid collection pipe 2.

[0048] Therefore, when the liquid level in the connecting part 13 is higher than the first set value, the gas-liquid mixed refrigerant has two paths after entering the first pipe body 11: the first path is that part of the liquid refrigerant enters the liquid collection pipe 2 through the connecting part 13 and finally enters the filter; the second path is that part of the liquid refrigerant follows the gaseous refrigerant through the connecting part 13 and enters the second pipe body 12 and finally enters the filter. When the liquid level in the connecting part 13 is lower than the second set value, the gas-liquid mixed refrigerant has only one path, that is, it passes through the first pipe body 11, the connecting part 13, the second pipe body 12 in sequence and finally enters the filter.

[0049] Optionally, please refer to Figure 3 , Figure 3 This is a schematic diagram of the installation of a condenser on a refrigerator according to an embodiment of this application. The refrigerator includes a cabinet 6, which includes an inner wall. The condenser pipe 1 can be installed on the inner wall of the refrigerator cabinet 6.

[0050] Optionally, both the second tube 12 and the liquid collection tube 2 are connected to the filter via anti-condensation tubes.

[0051] Optionally, the condenser provided in this embodiment further includes a liquid level sensor 3. The liquid level sensor 3 is disposed within the connection portion 13. The liquid level sensor 3 is used to monitor the liquid level within the connection portion 13 and transmit a liquid level signal to the refrigerator's processor, so that the refrigerator's processor controls the opening and closing of the liquid collection pipe 2 according to the liquid level signal. Specifically, the liquid level sensor 3 is a pressure sensor, and the model is not further limited here.

[0052] Optionally, the connecting part 13 is U-shaped, and the liquid level sensor 3 is located at the bottom of the U-shaped connecting part 13, that is, along the direction of gravity, the liquid level sensor 3 is located at the bottom of the U-shaped connecting part 13, so as to monitor the liquid level height in the connecting part 13 in real time. At the same time, when the liquid level in the connecting part 13 reaches the first set height, the distance between the liquid level sensor 3 and the liquid surface is the farthest, and the measurement result is the most accurate. This avoids the situation where the liquid level sensor 3 is located in a higher position in the connecting part 13, resulting in the liquid level sensor 3 being too close to the liquid surface. When the liquid level sensor 3 is not sensitive enough, the measured data will be inaccurate, which will affect the timely discharge of liquid refrigerant.

[0053] Optionally, the condenser provided in this embodiment further includes an electrically controlled valve 4. The electrically controlled valve 4 is closable at the connection between the liquid collection pipe 2 and the connecting part 13. The refrigerator controls the opening and closing of the liquid collection pipe 2 through the electrically controlled valve 4. Specifically, both the electrically controlled valve 4 and the liquid level sensor 3 are communicatively connected to the processor. The liquid level sensor 3 transmits the liquid level signal of the connecting part 13 to the processor. The processor controls the opening and closing of the electrically controlled valve 4 according to the received liquid level signal. For example, when the liquid level signal is higher than a first set value, the processor controls the electrically controlled valve 4 to open, thereby connecting the connecting part 13 with the liquid collection pipe 2.

[0054] Optionally, the condenser provided in this embodiment further includes a connecting pipe 5, which connects the connecting part 13 to the liquid collecting pipe 2, and an electrically controlled valve 4 is disposed inside the connecting pipe 5. The shape and size of the connecting pipe 5 are not further limited here.

[0055] Optionally, the first tube 11, the connecting part 13, and the second tube 12 each include multiple tubes, and are connected sequentially in the order of the first tube 11, the connecting part 13, and the second tube 12. Each connecting part 13 located below the first tube 11 along the direction of gravity is connected to the liquid collecting pipe 2. That is, the connecting part 13 located above the first tube 11 and the second tube 12 is not connected to the liquid collecting pipe 2, while the connecting part 13 located below the first tube 11 and the second tube 12 is connected to the liquid collecting pipe 2. In other words, in the direction of gravity, the liquid collecting pipe 2 is located below the condenser tube 1.

[0056] Furthermore, each connecting part 13 located below the first pipe body 11 along the direction of gravity is connected to the liquid collection pipe 2 through a connecting pipe 5. Each connecting pipe 5 is equipped with an electrically controlled valve 4, and each connecting part 13 located below the first pipe body 11 along the direction of gravity is equipped with a liquid level sensor 3. The distance and number of the first pipe body 11, connecting parts 13, and second pipe body 12 are not further limited here. For example, they can all be three or five, etc. In this case, the second pipe body 12 located at the end of the flow is connected to the filter. Alternatively, the first pipe body 11 has four pipes, and the connecting parts 13 and the second pipe body 12 have three pipes, that is, the first pipe body 11 is located at the end of the flow and is connected to the filter.

[0057] This application also provides a refrigerator; please refer to [link / reference]. Figure 4 , Figure 4 The structural block diagram of the refrigerator provided in this application embodiment includes a compressor, a filter, and a condenser as described above. The compressor is used to output a gas-liquid mixed refrigerant; the condenser is connected between the compressor and the filter, and the gas-liquid mixed refrigerant output by the compressor is condensed by the condenser and then enters the filter. The refrigerator model is not further limited here; for example, it can be a single-door refrigerator. Please refer to [link to relevant documentation]. Figure 6 , Figure 6 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this application.

[0058] Optionally, the filter is provided with an opening, and the second tube 12 or the liquid collecting tube 2 is connected to the filter through the opening. In the direction of gravity, the opening is located below the condenser tube 1 and the liquid collecting tube 2. That is, the first tube 11 is located at the flow end of the condenser tube 1. After descending through the first tube 11, the liquid is directly filtered, so that the liquid in the liquid collecting tube 2 and the condenser tube 1 can flow into the filter under the influence of gravity, avoiding stagnation in the condenser tube 1 or the liquid collecting tube 2 due to insufficient power.

[0059] This application embodiment also provides a refrigerator control method. The refrigerator includes a condenser and a filter. The condenser includes a first tube 11 and a second tube 12 that are arranged opposite to each other and both extend along the direction of gravity, and a connecting portion 13 that connects the first tube 11 and the second tube 12. The condenser also includes a liquid collecting pipe 2, which is closably connected between the connecting portion 13 and the filter. Please refer to [link to relevant documentation]. Figure 5 , Figure 5 This is a flowchart of a refrigerator control method provided in an embodiment of this application. The refrigerator control method includes the following steps:

[0060] Step S1: Turn on the cooling mode and obtain the liquid level in the connection part 13;

[0061] Step S2: When the liquid level in the connection part 13 is higher than the first set value, open the liquid collection pipe 2 so that the liquid refrigerant in the condenser pipe 1 enters the filter from the connection part 13 through the liquid collection pipe 2, and the gaseous refrigerant in the condenser pipe 1 enters the filter from the connection part 13 through the second pipe body 12.

[0062] Step S3: When the liquid level in the connection part 13 is lower than the second set value, close the liquid collection pipe 2 so that the gas-liquid mixed refrigerant in the condenser pipe 1 enters the filter from the connection part 13 through the second pipe body 12. The execution order of steps S2 and S3 is not further limited.

[0063] Optionally, the condenser pipe 1 of the refrigerator includes multiple first pipe bodies 11, connecting parts 13, and second pipe bodies 12, which are connected sequentially in the order of first pipe bodies 11, connecting parts 13, and second pipe bodies 12. Each connecting part 13 located below the first pipe body 11 along the direction of gravity is connected to the liquid collection pipe 2 through an electronically controlled valve 4. That is, when there are multiple first pipe bodies 11, connecting parts 13, and second pipe bodies 12, the refrigerator control method further includes the following step when executing step S2:

[0064] Step S21: Obtain the liquid level in each of the aforementioned connecting parts;

[0065] Step S22: The connection part with a liquid level higher than the first set value is identified as the first target connection part;

[0066] Step S23: Open the electronically controlled valve corresponding to the first target connection part, and along the flow direction of the gas-liquid mixed refrigerant, determine the connection part located upstream of the first target connection part and adjacent to the first target connection part as the second target connection part;

[0067] Step S24: When the liquid level in the second target connection is higher than the third set value, the electric control valve corresponding to the second target connection opens, wherein the third set value is less than the first set value and greater than the second set value.

[0068] Due to the condensing effect of the condenser, along the flow direction of the refrigerant in the condenser tube 1, the liquid level is usually lowest in the connection section 13 at the front end of the flow in the condenser tube 1, and highest in the connection section 13 at the end of the flow in the condenser tube 1. Therefore, under normal circumstances, the electrically controlled valve 4 corresponding to the connection section 13 at the end of the flow in the condenser tube 1 opens first, and this connection section 13 is designated as the first target connection section. At the same time, along the flow direction of the gas-liquid mixed refrigerant, the connection section upstream of the first target connection section and adjacent to the first target connection section is designated as the second target connection section, and the second... The opening condition of the electrically controlled valve corresponding to the target connection is that when the liquid level of the second target connection is higher than the third set value, the corresponding electrically controlled valve is opened to prevent the liquid refrigerant in the other connection 13 located upstream from continuously entering the downstream connection 13 before the liquid refrigerant in the downstream connection 13 has dropped to the second set value, thereby prolonging the time for the liquid level in the downstream connection 13 to drop. By reducing the opening standard of the other electrically controlled valve corresponding to the other connection 13 located upstream, the liquid discharge pressure in the downstream connection 13 is relieved, and the condensing efficiency of the gas-liquid condenser is improved.

[0069] Similarly, when both electrically controlled valves 4 corresponding to the two downstream connection parts 13 are open, the opening standard of the electrically controlled valve 4 corresponding to the upstream connection part 13 is also lowered accordingly. Its opening standard is lower than the third setting value and can be the fourth setting value. The first, third, and fourth setting values ​​can be gradually decreased at equal intervals. No further limitations are made here regarding the decreasing intervals or the specific values ​​corresponding to the first, third, and fourth setting values.

[0070] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0071] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0072] The condenser, refrigerator, and refrigerator control method provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A condenser for use in a refrigerator, the refrigerator including a filter, wherein a gas-liquid mixed refrigerant within the refrigerator flows from the condenser to the filter, characterized in that, The condenser includes: The condenser includes a first tube and a second tube that are arranged opposite to each other and both extend along the direction of gravity, and a connecting part that connects the first tube and the second tube. A gas-liquid mixed refrigerant descends along the first tube, enters the connecting part, and then rises along the second tube. A liquid collection tube is closable and connectable between the connection and the filter; When the liquid level in the connection part is higher than the first set value, the liquid collection pipe is opened, and the liquid refrigerant in the condenser tube enters the filter from the connection part through the liquid collection pipe, and the gaseous refrigerant in the condenser tube enters the filter from the connection part through the second tube body. When the liquid level in the connection is lower than the second set value, the liquid collection pipe is closed, and the gas-liquid mixed refrigerant in the condenser pipe enters the filter from the connection through the second pipe body.

2. The condenser according to claim 1, characterized in that, It also includes a liquid level sensor, which is disposed in the connection part. The liquid level sensor is used to monitor the liquid level in the connection part and transmit a liquid level signal to the processor of the refrigerator, so that the processor of the refrigerator controls the opening and closing of the liquid collection pipe according to the liquid level signal.

3. The condenser according to claim 2, characterized in that, The connecting part is U-shaped, and the liquid level sensor is located at the bottom of the U-shaped connecting part.

4. The condenser according to claim 1, characterized in that, It also includes an electrically controlled valve, which is closable at the connection between the liquid collection pipe and the connecting part, and the electrically controlled valve controls the opening and closing of the liquid collection pipe.

5. The condenser according to claim 4, characterized in that, It also includes a connecting pipe that connects the connecting part to the liquid collecting pipe, and the electrically controlled valve is disposed inside the connecting pipe.

6. The condenser according to any one of claims 1-5, characterized in that, The first tube, the connecting part, and the second tube each include multiple tubes, and are connected in sequence according to the order of the first tube, the connecting part, and the second tube. Each connecting part located below the first tube along the direction of gravity is connected to the liquid collection tube.

7. A refrigerator, characterized in that, include: A compressor is used to output a gas-liquid mixture of refrigerant; Filter; The condenser as described in any one of claims 1-6 is connected between the compressor and the filter, wherein the gas-liquid mixed refrigerant output by the compressor is condensed by the condenser and then enters the filter.

8. The refrigerator according to claim 7, characterized in that, The filter has an opening, and the second tube or the liquid collection tube communicates with the filter through the opening. In the direction of gravity, the opening is located below the condenser tube and the liquid collection tube.

9. A method for controlling a refrigerator, characterized in that, The refrigerator includes a condenser and a filter. The condenser includes condenser tubes, each condenser tube comprising a first tube body and a second tube body arranged opposite to each other and extending along the direction of gravity, and a connecting portion connecting the first tube body and the second tube body. The condenser also includes a liquid collecting tube, which is closably connected between the connecting portion and the filter. The control method includes: Turn on the cooling mode and obtain the liquid level in the connecting part; When the liquid level in the connection is higher than the first set value, the liquid collection pipe is opened so that the liquid refrigerant in the condenser enters the filter from the connection through the liquid collection pipe, and the gaseous refrigerant in the condenser enters the filter from the connection through the second pipe body. When the liquid level in the connection is lower than the second set value, the liquid collection pipe is closed so that the gas-liquid mixed refrigerant in the condenser tube enters the filter from the connection through the second pipe body.

10. The refrigerator control method according to claim 9, wherein the refrigerator's condenser tube comprises multiple first tube bodies, the connecting portion, and the second tube body, and is connected sequentially in the order of the first tube body, the connecting portion, and the second tube body; each connecting portion located below the first tube body along the direction of gravity is connected to the liquid collection tube via an electrically controlled valve, characterized in that... Refrigerator control methods include: Obtain the liquid level within each of the aforementioned connecting parts; The connection part with a liquid level higher than a first set value is identified as the first target connection part; Open the electrically controlled valve corresponding to the first target connection part, and along the flow direction of the gas-liquid mixed refrigerant, determine the connection part located upstream of the first target connection part and adjacent to the first target connection part as the second target connection part; When the liquid level in the second target connection is higher than the third set value, the electronically controlled valve corresponding to the second target connection opens. The third set value is less than the first set value but greater than the second set value.

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