Refrigeration assembly and refrigerator

By attaching a capillary tube to the heat exchange section around the refrigerator's return pipe, heat exchange is carried out using temperature differences, which solves the problem of condensation or frost on the return pipe, improves heat exchange efficiency, and saves on the length and cost of the return pipe.

CN223484588UActive Publication Date: 2025-10-28TCL HOME APPLIANCES (HEFEI) CO LTD
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Patent Information

Application Number
CN202422695150.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2025-10-28
Estimated Expiration
2034-11-04

AI Technical Summary

Technical Problem

Existing refrigerator return pipes are prone to condensation or frost due to low temperatures, leading to a decrease in the efficiency of the refrigeration system.

Method used

A heat exchange section with capillary tubes is attached to the outer periphery of the return gas pipe. The temperature of the capillary tubes is higher than that of the return gas pipe, and heat exchange is used to prevent condensation or frost. Existing energy is used to achieve the function of preventing condensation or frost, and the heat exchange area is increased to improve efficiency.

Benefits of technology

It effectively prevents condensation or frost on the return pipe, improves heat exchange efficiency, shortens the length of the return pipe, and saves costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a refrigeration assembly and a refrigerator. The refrigeration assembly comprises an air return pipe which communicates with an evaporator and a compressor; the capillary tube comprises a heat exchange part and a pair of connecting parts connected to the two ends of the heat exchange part, the connecting parts communicate with the condenser and the evaporator correspondingly, the heat exchange part comprises a plurality of first tube bodies, and the first tube bodies are attached to the periphery of the air return tube. According to the refrigeration assembly provided by the invention, the capillary tube communicates with the condenser and the evaporator, so that the temperature of the capillary tube is higher than that of the air return pipe, and the heat exchange part of the capillary tube with relatively high temperature is attached to the periphery of the air return pipe and exchanges heat with the air return pipe, so that the air return pipe is prevented from being condensed or frosted due to relatively low temperature; the anti-condensation or anti-frosting function of the air return pipe is achieved through existing energy, and extra energy consumption is not needed. Meanwhile, the first pipe bodies and the air return pipe exchange heat at the same time, the heat exchange efficiency is higher, the length of the air return pipe can be shortened, and cost is saved.
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Description

Technical Field

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

[0002] A refrigerator's refrigeration system typically includes a compressor, condenser, evaporator, and return pipe. The return pipe is mainly used to guide the low-pressure, low-temperature refrigerant gas flowing from the evaporator back to the compressor. Because the refrigerant is cooled to a low temperature in the return pipe, condensation or frost may form on the return pipe due to the low temperature. Utility Model Content

[0003] This application provides a refrigeration component and a refrigerator to solve the problem of condensation or frost forming on the return pipe of existing refrigerators due to low temperatures.

[0004] This application provides a refrigeration assembly for use in a refrigerator. The refrigeration assembly includes a compressor, a condenser, and an evaporator. The refrigeration assembly further includes:

[0005] A return pipe connects the evaporator and the compressor;

[0006] The capillary tube includes a heat exchange section and a pair of connecting sections at both ends of the heat exchange section. The pair of connecting sections are respectively connected to the condenser and the evaporator. The heat exchange section includes multiple first tube bodies, which are attached to the outer periphery of the return gas pipe.

[0007] Optionally, multiple first tube bodies are arranged sequentially along the circumference of the return air pipe, and each first tube body extends along the axial direction of the return air pipe.

[0008] Optionally, multiple first tube bodies are arranged sequentially along the axial direction of the return air pipe, and each first tube body extends circumferentially along the return air pipe.

[0009] Optionally, adjacent first pipe bodies are connected in sequence, and at least one first pipe body is connected to one of the connecting parts, and at least another first pipe body is connected to another connecting part.

[0010] Optionally, both ends of each of the first tube bodies are connected to a pair of the connecting portions.

[0011] Optionally, the return pipe includes a heat exchange section near the compressor, and multiple first pipe bodies are attached to the outer periphery of the heat exchange section.

[0012] Optionally, the heat exchange section is linear.

[0013] Optionally, the heat exchange section is serpentine.

[0014] Optionally, the refrigerator includes a cabinet liner, and the refrigeration component further includes a buckle. The buckle is disposed on the cabinet liner, and the buckle includes a guide portion and a snap-fit ​​portion. The guide portion is disposed at the front end of the snap-fit ​​portion along the snap-fit ​​direction, and the return gas pipe and the capillary tube pass through the guide portion and snap-fit ​​onto the snap-fit ​​portion.

[0015] The guide portion includes a guide hole, and the diameter of the guide hole gradually decreases towards the end of the snap-fit ​​portion.

[0016] This application also provides a refrigerator, including the above-described refrigeration components.

[0017] The refrigeration assembly provided in this application embodiment, because the capillary tube connects the condenser and the evaporator, has a higher temperature than the return gas pipe. By utilizing the heat exchange section of the relatively high-temperature capillary tube, which is attached to the outer periphery of the return gas pipe for heat exchange, condensation or frost formation on the return gas pipe due to its lower temperature is prevented. This achieves the anti-condensation or anti-frost function of the return gas pipe using existing energy sources, without requiring additional energy consumption. Furthermore, since the heat exchange section includes multiple first tube bodies, and these multiple first tube bodies exchange heat with a single return gas pipe simultaneously, the heat exchange area is larger, resulting in higher heat exchange efficiency. This, in turn, allows for a shorter return gas pipe length, saving on return gas pipe costs. Attached Figure Description

[0018] 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.

[0019] 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.

[0020] Figure 1 This is a schematic diagram of a cooling component provided in an embodiment of this application.

[0021] Figure 2 This is a schematic diagram of the installation of a refrigeration component provided in an embodiment of this application.

[0022] Figure 3 This is another structural schematic diagram of the refrigeration component provided in an embodiment of this application.

[0023] Figure 4 This is another schematic diagram of the installation of the refrigeration component provided in an embodiment of this application.

[0024] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle. Detailed Implementation

[0025] 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.

[0026] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0030] This application provides a refrigeration component and a refrigerator to solve the problem of condensation or frost forming on the return pipe of existing refrigerators due to low temperature. The following description is in conjunction with the accompanying drawings.

[0031] The refrigeration assembly provided in this application embodiment is applied to a refrigerator. The refrigeration assembly includes a compressor, a condenser, and an evaporator. The refrigeration assembly also includes a return pipe 1 and a capillary tube 2. Please refer to... Figures 1 to 5 The return pipe 1 connects the evaporator and the compressor; the capillary tube 2 includes a heat exchange section 21 and a pair of connecting sections 22 connected to both ends of the heat exchange section 21. The pair of connecting sections 22 are respectively connected to the condenser and the evaporator. The heat exchange section 21 includes multiple first tube bodies 211, which are attached to the outer periphery of the return pipe 1.

[0032] The refrigeration assembly provided in this application embodiment, since the capillary tube 2 connects the condenser and the evaporator, has a higher temperature than the return pipe 1. By utilizing the heat exchange section 21 of the relatively high-temperature capillary tube 2, which is attached to the outer periphery of the return pipe 1, heat exchange is achieved with the return pipe 1, preventing condensation or frosting on the return pipe 1 due to its lower temperature. This utilizes existing energy to achieve the anti-condensation or anti-frost function of the return pipe 1 without additional energy consumption. Furthermore, since the heat exchange section 21 includes multiple first tube bodies 211, and multiple first tube bodies 211 exchange heat with one return pipe 1 simultaneously, the heat exchange area is larger, resulting in higher heat exchange efficiency. This allows for a shorter length of the return pipe 1, saving on its cost.

[0033] Optionally, the connecting part 22 can be a connecting pipe.

[0034] Optionally, the return pipe 1 can be made of aluminum.

[0035] Understandably, the capillary tube 2 is a component in the refrigerator's refrigeration system. The high-temperature, high-pressure liquid refrigerant from the condenser enters the capillary tube 2. Due to the flow-limiting effect of the capillary tube 2, the pressure of the refrigerant drops significantly as it flows through it. During this pressure drop, some of the liquid refrigerant evaporates into a gaseous state, forming a low-temperature, low-pressure refrigerant. This low-temperature, low-pressure gas-liquid mixture enters the evaporator, absorbing heat from inside the refrigerator to achieve the refrigeration effect. Therefore, the capillary tube 2 mainly functions to throttle and reduce pressure, and is usually made of copper or other materials with good thermal conductivity.

[0036] Regarding the installation method of the first tube body 211, in some examples, multiple first tube bodies 211 are arranged sequentially along the circumference of the return air pipe 1, and each first tube body 211 extends along the axial direction of the return air pipe 1. In this case, the extension direction of the multiple first tube bodies 211 is the same as the extension direction of the return air pipe 1, and each first tube body 211 is roughly a vertical straight tube, making the installation process of the first tube body 211 and the return air pipe 1 simpler and easier to operate. The first tube body 211 can be directly installed along the extension direction of the return air pipe 1, saving time and effort in the installation process, and the structure of the first tube body 211 is also simpler.

[0037] Regarding the mounting method of the first tube body 211, in some other examples, multiple first tube bodies 211 are arranged sequentially along the axial direction of the return air pipe 1, and each first tube body 211 extends circumferentially along the return air pipe 1. In this case, each first tube body 211 is approximately ring-shaped, and multiple first tube bodies 211 are arranged sequentially along the extension direction of the return air pipe 1.

[0038] The method of fixing the first tube body 211 and the return pipe 1 is not further limited here. In some examples, the return pipe 1 and multiple first tube bodies 211 can be welded separately; in other examples, the return pipe 1 and multiple first tube bodies 211 can be glued together with hot melt adhesive; in other examples, heat shrink sleeves are also included. After multiple first tube bodies 211 are attached to the return pipe 1, the heat shrink sleeves are wrapped around the outer periphery of the multiple first tube bodies 211 to fasten the multiple first tube bodies 211 to the outer periphery of the return pipe 1. The type of heat shrink sleeve is not further limited here.

[0039] Regarding the connection method between multiple first pipe bodies 211 and connecting parts 22, in some examples, adjacent first pipe bodies 211 are connected sequentially, and at least one first pipe body 211 is connected to one connecting part 22, and at least another first pipe body 211 is connected to another connecting part 22. That is, multiple first pipe bodies 211 are connected in series and then connected to a pair of connecting parts 22 respectively. At this time, the flow rate of each first pipe body 211 is the same.

[0040] In some examples, the connection between multiple first pipe bodies 211 and connecting parts 22 is such that both ends of each first pipe body 211 are connected to a pair of connecting parts 22. That is, multiple first pipe bodies 211 are connected in parallel and each is connected to a pair of connecting parts 22. In this case, the sum of the flow rates in the multiple first pipe bodies 211 is equal to the flow rate in one connecting part 22.

[0041] Regarding the shape of the heat exchange section, in some examples, the heat exchange section is straight. In this case, each first tube body 211 is straight, and the structure is simple.

[0042] Regarding the shape of the heat exchange section, in some other examples, the heat exchange section is serpentine, in which case a longer heat exchange section can be installed on the same length of the tank liner 3.

[0043] As a specific implementation method, such as Figure 3 and Figure 4 As shown, multiple first tube bodies 211 are arranged sequentially along the circumference of the return gas pipe 1, and each first tube body 211 extends along the axial direction of the return gas pipe 1. At this time, the heat exchange section 21 also includes multiple second tube bodies 212. The multiple second tube bodies 212 are roughly U-shaped. Two adjacent first tube bodies 211 are connected through a second tube body 212, and at least one first tube body 211 is connected to a connecting part 22, and at least another first tube body 211 is connected to another connecting part 22. Meanwhile, the heat exchange section is straight.

[0044] As another specific implementation method, such as Figure 1 and Figure 2 As shown, multiple first tube bodies 211 are arranged sequentially along the circumference of the return gas pipe 1, and each first tube body 211 extends along the axial direction of the return gas pipe 1. Furthermore, both ends of each first tube body 211 are connected to a pair of connecting parts 22. Meanwhile, the heat exchange section is serpentine.

[0045] In another specific implementation, multiple first tube bodies 211 are arranged sequentially along the axial direction of the return gas pipe 1, and each first tube body 211 extends circumferentially along the return gas pipe 1. In this case, the heat exchange section 21 also includes multiple second tube bodies 212. Each second tube body 212 can be an arc-shaped tube. Two adjacent first tube bodies 211 are connected through a second tube body 212, and at least one first tube body 211 is connected to a connecting part 22, and at least another first tube body 211 is connected to another connecting part 22. Meanwhile, the heat exchange section is linear. In this case, the heat exchange section can be approximately spiral-shaped.

[0046] As another specific implementation, multiple first tube bodies 211 are arranged sequentially along the axial direction of the return gas pipe 1, and each first tube body 211 extends circumferentially along the return gas pipe 1. Furthermore, both ends of each first tube body 211 are connected to a pair of connecting portions 22. Meanwhile, the heat exchange section is linear.

[0047] Optionally, the return gas pipe 1 includes a heat exchange section near the compressor, with multiple first pipe bodies 211 attached to the outer periphery of the heat exchange section. Since the temperature is lower at the end of the return gas pipe 1 closer to the compressor, meaning that the probability of condensation or frost is higher at the end of the return gas pipe 1 closer to the compressor, attaching the heat exchange section 21 to the end of the return gas pipe 1 closer to the compressor allows for more precise heating of the low-temperature section of the return gas pipe 1.

[0048] Optionally, the refrigerator includes a liner 3, and the refrigeration assembly also includes a clip 4; see [link to relevant documentation]. Figure 5 The buckle 4 is set on the inner box 3. The buckle 4 includes a guide part 41 and a snap-fit ​​part 42. The guide part 41 is set at the front end of the snap-fit ​​part 42 along the snap-fit ​​direction. The return air pipe 1 and the capillary tube 2 pass through the guide part 41 and snap-fit ​​into the snap-fit ​​part 42. The guide part 41 includes a guide hole. The diameter of the guide hole gradually decreases as it approaches the snap-fit ​​part 42. Specifically, the snap-fit ​​part 42 includes a snap-fit ​​hole, which is connected to a guide hole. Specifically, the diameter of the snap-fit ​​hole is larger than the diameter of the guide hole at the end near the snap-fit ​​hole, thereby guiding the attached return air pipe 1 and capillary tube 2 through the guide hole. This allows the attached return air pipe 1 and capillary tube 2 to slide into the snap-fit ​​part 42 through the guide hole and snap into the snap-fit ​​part 42. Since the diameter of the snap-fit ​​hole is larger than the diameter of the guide hole at the end near the snap-fit ​​hole, it ensures that the attached return air pipe 1 and capillary tube 2 will not slide out from the guide hole, ensuring that the attached return air pipe 1 and capillary tube 2 can be fixed in a fixed position on the box liner 3 to prevent displacement.

[0049] Furthermore, the guide portion 41 may include a pair of opposing grippers, with the free ends of the grippers facing each other and extending toward the snap-fit ​​portion 42 to jointly clamp and form a guide hole. The pair of grippers have different lengths, with the longer gripper extending into the snap-fit ​​portion 42 and blocking the front ends of the attached return air pipe 1 and capillary tube 2 as they slide out, further improving the fixing effect of the buckle 4 on the attached return air pipe 1 and capillary tube 2.

[0050] This application also provides a refrigerator, including the aforementioned refrigeration components. In some examples, the refrigerator may be a frost-free refrigerator; the model of the refrigerator is not further limited here.

[0051] 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.

[0052] The refrigeration components and refrigerators 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 descriptions of the embodiments above are only for the purpose of helping to understand the methods 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 refrigeration assembly for use in a refrigerator, the refrigeration assembly comprising a compressor, a condenser, and an evaporator, characterized in that, The cooling component also includes: A return pipe connects the evaporator and the compressor; The capillary tube includes a heat exchange section and a pair of connecting sections at both ends of the heat exchange section. The pair of connecting sections are respectively connected to the condenser and the evaporator. The heat exchange section includes multiple first tube bodies, which are attached to the outer periphery of the return gas pipe.

2. The refrigeration component according to claim 1, characterized in that, Multiple first tube bodies are arranged sequentially along the circumference of the return air pipe, and each first tube body extends along the axial direction of the return air pipe.

3. The refrigeration component according to claim 1, characterized in that, Multiple first tube bodies are arranged sequentially along the axial direction of the return air pipe, and each first tube body extends circumferentially along the return air pipe.

4. The refrigeration component according to claim 1, characterized in that, The adjacent first pipe bodies are connected in sequence, and at least one first pipe body is connected to one of the connecting parts, and at least another first pipe body is connected to another of the connecting parts.

5. The refrigeration component according to claim 1, characterized in that, Both ends of each of the first tube bodies are connected to a pair of the connecting portions.

6. The refrigeration component according to claim 1, characterized in that, The return gas pipe includes a heat exchange section near the compressor, and multiple first pipe bodies are attached to the outer periphery of the heat exchange section.

7. The refrigeration component according to claim 6, characterized in that, The heat exchange section is linear.

8. The refrigeration component according to claim 6, characterized in that, The heat exchange section is serpentine in shape.

9. The refrigeration component according to claim 1, characterized in that, The refrigerator includes a cabinet liner, and the refrigeration component also includes a buckle. The buckle is disposed on the cabinet liner and includes a guide portion and a snap-fit ​​portion. The guide portion is disposed at the front end of the snap-fit ​​portion along the snap-fit ​​direction. The return gas pipe and the capillary tube pass through the guide portion and are snapped into the snap-fit ​​portion. The guide portion includes a guide hole, and the diameter of the guide hole gradually decreases towards the end of the snap-fit ​​portion.

10. A refrigerator, characterized in that, Includes the refrigeration component as described in any one of claims 1-9.