Refrigeration system and refrigerator
By setting first and second connecting pipes in the refrigerator, the evaporator and return pipe can be switched universally, which solves the problems of poor compatibility between counter-flow defrosting and ordinary refrigerators, simplifies management and installation, improves connection reliability and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HISENSE(SHANDONG)REFRIGERATOR CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-23
AI Technical Summary
Counterflow defrosting refrigerators have poor compatibility with the evaporators and return pipes in regular refrigerators, making them inconvenient to manage.
By setting a first connecting pipe and a second connecting pipe, which can be selectively connected to the evaporator outlet end and the return gas pipe inlet end respectively, and can be switched when different refrigerator types are used, the evaporator and return gas pipe can be universally used, reducing the number of welding points and pipe connections.
It achieves universality of evaporators and return pipes in different types of refrigerators, simplifies management and installation, improves connection reliability, and reduces processing costs.
Smart Images
Figure CN224398114U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of refrigeration technology, and more particularly to a refrigeration system and a refrigerator. Background Technology
[0002] In a refrigerator with counter-current defrosting, the refrigerant flows sequentially from the compressor to the condenser, the throttling device, and the evaporator during the defrosting process.
[0003] In related technologies, in refrigerators with counter-flow defrosting, the outlet end of the evaporator is connected to a four-way valve, and the inlet end of the return gas pipe is also connected to the four-way valve. The outlet end of the evaporator, the inlet end of the return gas pipe, and the four-way valve are located inside the compressor compartment. In ordinary refrigerators, the outlet end of the evaporator is connected to the inlet end of the return gas pipe, and both the outlet end of the evaporator and the inlet end of the return gas pipe are located inside the cold source chamber.
[0004] The evaporators and return pipes in refrigerators with counter-flow defrosting are not very compatible with those in ordinary refrigerators, making them inconvenient to manage. Utility Model Content
[0005] This application provides a refrigeration system and refrigerator, which has good versatility in terms of evaporator and return pipe.
[0006] In a first aspect, this application provides a refrigerator, comprising:
[0007] shell;
[0008] The inner liner, located inside the outer shell, contains a cold source chamber and a storage chamber, with the storage chamber used to store food.
[0009] The compressor chamber is located inside the outer casing;
[0010] Refrigeration system, including:
[0011] The evaporator is located in the cold source chamber and has an evaporator inlet end (410) and an evaporator outlet end.
[0012] The first connecting pipe can be selectively connected to the outlet end of the evaporator;
[0013] The return pipe is equipped with a return pipe inlet and a return pipe outlet.
[0014] The second connecting pipe can be selectively connected to the inlet end of the return gas pipe;
[0015] The first connecting pipe is connected to the outlet end of the evaporator, and the second connecting pipe is connected to the inlet end of the return gas pipe, so that the end of the first connecting pipe away from the evaporator and the end of the second connecting pipe away from the return gas pipe are located inside the compressor compartment.
[0016] The first connecting pipe is disconnected from the evaporator outlet end, and the second connecting pipe is disconnected from the return gas pipe inlet end, so that the return gas pipe inlet end is connected to the evaporator outlet end.
[0017] When the refrigerator is a counter-current defrosting refrigerator, the first connecting pipe is connected to the evaporator outlet, and the second connecting pipe is connected to the return gas pipe inlet, so that the ends of the first and second connecting pipes facing away from the evaporator are located inside the refrigerator's compressor compartment. When the refrigerator is a non-counter-current defrosting refrigerator, the first connecting pipe is disconnected from the evaporator outlet, and the second connecting pipe is disconnected from the return gas pipe inlet, so that the return gas pipe inlet is connected to the evaporator outlet. This allows the evaporator and return gas pipe structures to be identical in both types of refrigerators, providing good versatility and ease of management.
[0018] In some embodiments, the end of the first connecting pipe away from the evaporator is close to the end of the second connecting pipe away from the return gas pipe, so that the end of the first connecting pipe away from the evaporator and the end of the second connecting pipe away from the return gas pipe are used to connect a four-way valve.
[0019] In this way, the end of the first connecting pipe away from the evaporator and the end of the second connecting pipe away from the return gas pipe can be used to connect the four-way valve. There is no need to set up additional pipelines in the compressor compartment to connect the first connecting pipe and the four-way valve, and the second connecting pipe and the four-way valve, thus reducing the number of welding points.
[0020] In some embodiments, when the first connecting pipe is connected to the evaporator outlet end, the first connecting pipe is welded to the evaporator outlet end.
[0021] This ensures a high level of connection reliability.
[0022] In some embodiments, when the second connecting pipe is connected to the inlet end of the return gas pipe, the second connecting pipe is welded to the inlet end of the return gas pipe.
[0023] This ensures a high level of connection reliability.
[0024] In some embodiments, the first connecting pipe located on the outside of the box liner extends horizontally or vertically;
[0025] The second connecting pipe located on the outside of the box extends horizontally or vertically.
[0026] This facilitates the flow of refrigerant within the first and second connecting pipes.
[0027] In some embodiments, the first connecting pipe and the second connecting pipe have the same diameter.
[0028] In this way, the first connecting pipe and the second connecting pipe can be processed using the same raw materials, which helps to reduce processing costs.
[0029] In some embodiments, it also includes:
[0030] The first identification structure is disposed on the first connecting pipe;
[0031] The second identification structure is disposed on the second connecting pipe, and the second identification structure and the first identification structure are configured to distinguish the first connecting pipe and the second connecting pipe.
[0032] This makes it easier to distinguish between the first and second connecting pipes, thus ensuring correct connection to the four-way valve and reducing installation errors.
[0033] In some embodiments, a first sealing element is also included, wherein the inner box is provided with a first through hole penetrating the back of the inner box, a first connecting pipe is inserted into the first through hole, and the first sealing element is located between the outer wall of the first connecting pipe and the inner wall of the first through hole to seal the first through hole.
[0034] In this way, by setting the first sealing element to seal the inner liner, the foam can be effectively prevented from entering the inner liner through the first through hole.
[0035] In some embodiments, a second seal is also included, wherein the box liner is provided with a second through hole penetrating the back of the box liner, a second connecting pipe is inserted into the second through hole, and the second seal is located between the outer wall of the second connecting pipe and the inner wall of the second through hole to seal the second through hole.
[0036] In this way, by setting a second sealing element to seal the inner liner, the foam can be effectively prevented from entering the inner liner through the second through hole.
[0037] Secondly, this application provides a refrigeration system for a refrigerator, comprising:
[0038] An evaporator is provided with an evaporator inlet and an evaporator outlet.
[0039] The first connecting pipe can be selectively connected to the outlet end of the evaporator;
[0040] The return pipe is equipped with a return pipe inlet and a return pipe outlet.
[0041] The second connecting pipe can be selectively connected to the inlet end of the return gas pipe;
[0042] When the refrigerator is a counter-flow defrosting refrigerator, the first connecting pipe is connected to the outlet end of the evaporator, and the second connecting pipe is connected to the inlet end of the return gas pipe, so that the end of the first connecting pipe away from the evaporator and the end of the second connecting pipe away from the return gas pipe are located in the compressor compartment of the refrigerator.
[0043] When the refrigerator is a non-reverse defrosting refrigerator, the first connecting pipe is disconnected from the evaporator outlet end, and the second connecting pipe is disconnected from the return gas pipe inlet end, so that the return gas pipe inlet end is connected to the evaporator outlet end.
[0044] In this way, the structures of the evaporator and return pipe in the two types of refrigerators can be the same, which has good versatility and is easy to manage. Attached Figure Description
[0045] Figure 1 This is a schematic diagram of the evaporator structure in a counter-flow defrosting refrigerator in related technologies;
[0046] Figure 2 This is a schematic diagram of the return air pipe in a counter-flow defrosting refrigerator in related technologies;
[0047] Figure 3 This is a schematic diagram of the evaporator structure in a non-reverse defrosting refrigerator in related technologies;
[0048] Figure 4 This is a schematic diagram of the return air pipe in a non-reverse defrosting refrigerator in related technologies;
[0049] Figure 5 This is a schematic diagram of a refrigeration system in a refrigerator provided in an embodiment of this application;
[0050] Figure 6 This is another structural schematic diagram of the refrigeration system in a refrigerator provided in an embodiment of this application;
[0051] Figure 7 This is a schematic diagram of the structure of the evaporator in a refrigerator provided in an embodiment of this application;
[0052] Figure 8 This is a schematic diagram of the structure of the evaporator and the first connecting pipe in a refrigerator provided in an embodiment of this application;
[0053] Figure 9 This is a schematic diagram of the structure of the return gas pipe in a refrigerator provided in an embodiment of this application;
[0054] Figure 10 This is a schematic diagram of the structure of the return gas pipe and the second connecting pipe in the refrigerator provided in an embodiment of this application;
[0055] Figure 11 A schematic diagram of the structure of the refrigerator inner liner, evaporator, return pipe, first connecting pipe and second connecting pipe provided in the embodiments of this application;
[0056] Figure 12 for Figure 11 Another structural diagram;
[0057] Figure 13 A schematic diagram of the structure of the evaporator, return pipe, first connecting pipe and second connecting pipe in a refrigerator provided in an embodiment of this application;
[0058] Figure 14An installation method for the first connecting pipe and the second connecting pipe in a refrigerator provided in this application embodiment;
[0059] Figure 15 Another installation method for the first connecting pipe and the second connecting pipe in the refrigerator provided in the embodiments of this application.
[0060] Explanation of reference numerals in the attached figures:
[0061] 100 - Compressor;
[0062] 200-Condenser;
[0063] 300 - Throttling device;
[0064] 400 - Evaporator; 410 - Evaporator inlet end; 420 - Evaporator outlet end;
[0065] 500 - First connecting pipe;
[0066] 600 - Return gas pipe; 610 - Return gas pipe inlet end; 620 - Return gas pipe outlet end;
[0067] 700 - Second connecting pipe;
[0068] 800-box liner;
[0069] 900-Four-way valve;
[0070] 1000-catheter. Detailed Implementation
[0071] Figure 1 This is a schematic diagram of the evaporator structure in a counter-flow defrosting refrigerator in related technologies. Figure 2 This is a schematic diagram of the return air pipe in a counter-flow defrosting refrigerator in related technologies. Figure 3 This is a schematic diagram of the evaporator structure in a non-reverse flow defrosting refrigerator in related technologies. Figure 4 This is a schematic diagram of the return air pipe in a non-reverse defrosting refrigerator in related technologies.
[0072] See Figures 1 to 4 As shown, for refrigerators using counter-current defrosting technology, both the evaporator 400 and the return pipe 600 have a pipe connected to a four-way valve. To ensure effective connection, the pipes connecting the evaporator 400 and the return pipe 600 are lengthened. For ordinary refrigerators, the connection between the return pipe 600 and the evaporator 400 is located inside the refrigerator liner, eliminating the need for pipe lengthening. Therefore, the evaporator 400 and return pipe 600 in counter-current defrosting refrigerators and ordinary refrigerators (non-counter-current defrosting refrigerators) have poor compatibility, making management inconvenient and transportation difficult.
[0073] To address the aforementioned technical problems, the refrigeration system and refrigerator provided in this application incorporate a first connecting pipe and a second connecting pipe. The first connecting pipe is selectively connected to the evaporator outlet, and the second connecting pipe is selectively connected to the return gas pipe inlet. When the refrigerator is a counter-current defrosting refrigerator, the first connecting pipe is connected to the evaporator outlet, and the second connecting pipe is connected to the return gas pipe inlet, so that the ends of the first and second connecting pipes facing away from the evaporator are located within the refrigerator's compressor compartment. When the refrigerator is a non-counter-current defrosting refrigerator, the first connecting pipe is disconnected from the evaporator outlet, and the second connecting pipe is disconnected from the return gas pipe inlet, so that the return gas pipe inlet is connected to the evaporator outlet. This allows the evaporator and return gas pipe structures to be identical in both types of refrigerators, providing good versatility and ease of management.
[0074] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.
[0075] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.
[0076] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.
[0077] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.
[0078] This application provides a refrigerator, which can be a frost-free refrigerator.
[0079] In some embodiments, the refrigerator includes an outer casing.
[0080] In some embodiments, the refrigerator includes a refrigerator liner 800. The refrigerator liner 800 is located inside the outer casing and is provided with a cold source compartment and a storage compartment for storing food.
[0081] In some embodiments, the refrigerator includes a compressor compartment. The compressor compartment is located within the outer casing.
[0082] Specifically, the outer casing has a first receiving cavity with a first and a second receiving port, which are respectively located on opposite sides of the outer casing in the depth direction. The first receiving port can be located on the front side of the outer casing, and the second receiving port can be located on the rear side of the outer casing. The compressor compartment is located inside the outer casing, and its opening is opposite to the second receiving port, allowing the compressor and condenser, etc., to be placed inside the compressor compartment via the second receiving port and the first opening.
[0083] The liner 800 is located inside the outer shell and forms at least one refrigeration compartment. The liner 800 has a third access port, which is opposite to the first access port, allowing items to be placed into the storage compartment through both the third and first access ports. A foam layer is filled between the liner, the outer shell, and the compressor chamber. The foam layer is used to insulate the storage compartment, thereby ensuring the refrigeration effect inside the storage compartment.
[0084] There may be at least one refrigeration room. When there is only one refrigeration room, it may be any one of a refrigerator, freezer, or variable temperature room. When there are two or more refrigeration rooms, the multiple refrigeration rooms may include at least one or more of a refrigerator, freezer, or variable temperature room.
[0085] The refrigeration room includes a cold source chamber and a storage chamber connected by a refrigeration duct structure. When the refrigeration fan is working, the air in the cold source chamber and the storage chamber circulates. In implementations with multiple storage chambers, there can also be multiple refrigeration duct structures, with each storage chamber connected to the cold source chamber through a corresponding refrigeration duct structure.
[0086] The door is located on the front of the cabinet, allowing for the opening and closing of the storage compartment and the retrieval of items. It should be noted that there can be one, two, or more doors.
[0087] Figure 5 This is a schematic diagram of a refrigeration system in a refrigerator provided in an embodiment of this application.
[0088] See Figure 5 As shown, the refrigeration system may include a compressor 100, a condenser 200, a throttling device 300, and an evaporator 400. The compressor 100, condenser 200, throttling device 300, and evaporator 400 are connected in series via pipelines through which refrigerant flows. The compressor 100 and condenser 200 may be located in the compressor compartment, while the evaporator 400 may be located in the cold source chamber.
[0089] In a non-reverse flow defrosting refrigerator (ordinary refrigerator), when the compressor 100 is working, low-temperature, low-pressure refrigerant is drawn into the compressor 100 and compressed into high-temperature, high-pressure superheated gas within the compressor 100 cylinder before being discharged into the condenser 200. The high-temperature, high-pressure refrigerant gas dissipates heat through the condenser 200, its temperature continuously decreasing until it is gradually cooled into room-temperature, high-pressure saturated vapor, and further cooled into a saturated liquid. The pressure of the refrigerant remains almost constant throughout the entire condensation process.
[0090] The throttling device 300 may include a pressure reducing pipe or an electronic expansion valve. This application describes the throttling device 300 as including a pressure reducing pipe as an example. The pressure reducing pipe is low in cost and less prone to malfunction. The saturated refrigerant liquid, after condensation, is throttled and depressurized through the pressure reducing pipe, turning the refrigerant into a room-temperature, low-pressure wet vapor. Subsequently, the room-temperature, low-pressure wet vapor absorbs heat and vaporizes through the evaporator 400, not only lowering the temperature of the evaporator 400 and its surroundings but also turning the refrigerant into a low-temperature, low-pressure gas.
[0091] The evaporator 400 cools the air inside the cold source chamber, lowering its temperature. Driven by a refrigeration fan, the cold air flows through the duct structure into the storage chamber, further lowering its temperature. The refrigerant exiting the evaporator 400 returns to the compressor 100, repeating the process to ensure continuous cooling of the air inside the cold source chamber, thus maintaining the storage chamber at the set temperature.
[0092] Figure 6 This is another structural schematic diagram of the refrigeration system in a refrigerator provided in an embodiment of this application.
[0093] See Figure 6 As shown, in a counter-current defrosting refrigerator, when the refrigerator is cooling, ports 1 / 2 and 4 / 3 of the four-way reversing valve are connected. High-temperature refrigerant discharged from compressor 100 enters condenser 200 through port 1 / 2 of the four-way reversing valve. Two branches appear at the outlet of condenser 200; one branch is the refrigeration branch, which is open. The refrigerant passes through the throttling device 300 and enters evaporator 400 for cooling. Simultaneously, the defrosting branch is closed, and this branch is blocked. The refrigerant can only return to compressor 100 through the refrigeration branch, after passing through evaporator 400, and then through the switching valve 4 / 3 and return pipe 600.
[0094] When the refrigerator defrosts, ports 1 / 4 and 2 / 3 of the four-way reversing valve are connected. High-temperature refrigerant discharged from compressor 100 enters evaporator 400 through port 1 / 4 of the four-way reversing valve. At the defrosting outlet of evaporator 400, two branches appear; one branch, the refrigeration branch, is closed. Simultaneously, the defrosting branch opens, and the refrigerant can only pass through the defrosting branch, then through condenser 200, and finally through switching valve 2 / 3 connected to return refrigerant to compressor 100 via return pipe 600.
[0095] Figure 6 This is another structural schematic diagram of the refrigeration system in a refrigerator provided in an embodiment of this application. Figure 7 This is a schematic diagram of the structure of the evaporator in a refrigerator provided in an embodiment of this application. Figure 8 This is a schematic diagram of the structure of the evaporator and the first connecting pipe in the refrigerator provided in an embodiment of this application.
[0096] See Figures 6 to 8 As shown, in some embodiments, the evaporator 400 is located in the cold source chamber, and the evaporator 400 is provided with an evaporator inlet end 410 and an evaporator outlet end 420. The evaporator inlet end 410 is used to connect to the throttling device 300.
[0097] In some embodiments, the refrigeration system includes a first connecting pipe 500. The first connecting pipe 500 is optionally connected to an evaporator outlet 420. One end of the first connecting pipe 500 facing away from the evaporator 400 is used to connect to a four-way valve 900.
[0098] Figure 9 This is a schematic diagram of the structure of the return gas pipe in the refrigerator provided in an embodiment of this application. Figure 10 This is a schematic diagram of the structure of the return gas pipe and the second connecting pipe in the refrigerator provided in an embodiment of this application.
[0099] In some embodiments, the refrigeration system includes a return pipe 600, which has a return pipe inlet 610 and a return pipe outlet 620. The return pipe outlet 620 is used to connect to the compressor 100.
[0100] In some embodiments, the refrigeration system includes a second connecting pipe 700. The second connecting pipe 700 is optionally connected to the return gas pipe inlet 610. One end of the second connecting pipe 700 opposite to the return gas pipe 600 is used to connect to a four-way valve 900.
[0101] See Figures 7 to 10 As shown, the first connecting pipe 500 is connected to the evaporator outlet end 420, and the second connecting pipe 700 is connected to the return gas pipe inlet end 610, so that the end of the first connecting pipe 500 away from the evaporator 400 and the end of the second connecting pipe 700 away from the return gas pipe 600 are located in the compressor compartment.
[0102] The first connecting pipe 500 is disconnected from the evaporator outlet end 420, and the second connecting pipe 700 is disconnected from the return gas pipe inlet end 610, so that the return gas pipe inlet end 610 is connected to the evaporator outlet end 420.
[0103] When the refrigerator is a counter-flow defrosting refrigerator, the first connecting pipe 500 is connected to the evaporator outlet end 420, and the second connecting pipe 700 is connected to the return gas pipe inlet end 610, so that the end of the first connecting pipe 500 away from the evaporator 400 and the end of the second connecting pipe 700 away from the return gas pipe 600 are located in the compressor compartment of the refrigerator.
[0104] When the refrigerator is a non-reverse defrosting refrigerator, the first connecting pipe 500 is disconnected from the evaporator outlet end 420, and the second connecting pipe 700 is disconnected from the return gas pipe inlet end 610, so that the return gas pipe inlet end 610 is connected to the evaporator outlet end 420.
[0105] It is understood that the refrigeration system and refrigerator provided in this embodiment, by setting a first connecting pipe 500 and a second connecting pipe 700, allows the first connecting pipe 500 to be selectively connected to the evaporator outlet end 420. The second connecting pipe 700 is selectively connected to the return gas pipe inlet end 610. When the refrigerator is a counter-current defrosting refrigerator, the first connecting pipe 500 is connected to the evaporator outlet end 420, and the second connecting pipe 700 is connected to the return gas pipe inlet end 610, so that the end of the first connecting pipe 500 away from the evaporator 400 and the end of the second connecting pipe 700 away from the return gas pipe are located in the compressor compartment of the refrigerator. When the refrigerator is a non-counter-current defrosting refrigerator, the first connecting pipe 500 is disconnected from the evaporator outlet end 420, and the second connecting pipe 700 is disconnected from the return gas pipe inlet end 610, so that the return gas pipe inlet end 610 is connected to the evaporator outlet end 420. In this way, the structures of the evaporator 400 and the return gas pipe 600 can be the same in both types of refrigerators, resulting in good versatility and ease of management.
[0106] In some embodiments, the end of the first connecting pipe 500 facing away from the evaporator 400 is close to the end of the second connecting pipe 700 facing away from the return gas pipe 600, so that the end of the first connecting pipe 500 facing away from the evaporator 400 and the end of the second connecting pipe 700 facing away from the return gas pipe are used to connect the four-way valve 900. In this way, the end of the first connecting pipe 500 facing away from the evaporator 400 and the end of the second connecting pipe 700 facing away from the return gas pipe 600 can be used to connect the four-way valve 900, eliminating the need for additional piping in the compressor compartment to connect the first connecting pipe 500 and the four-way valve 900, and the second connecting pipe 700 and the four-way valve 900, thus reducing the number of welding points.
[0107] In some embodiments, when the first connecting pipe 500 is connected to the evaporator outlet end 420, the first connecting pipe 500 is welded to the evaporator outlet end 420. This ensures a high degree of reliability in the connection.
[0108] In some embodiments, when the second connecting pipe 700 is connected to the inlet end 610 of the return gas pipe, the second connecting pipe 700 is welded to the inlet end 610 of the return gas pipe. This ensures a high degree of reliability in the connection.
[0109] Figure 11 This is a schematic diagram of the structure of the refrigerator inner liner, evaporator, return pipe, first connecting pipe and second connecting pipe provided in the embodiments of this application. Figure 12 for Figure 11 Another structural diagram from another angle, Figure 13 This is a schematic diagram of the structure of the evaporator, return pipe, first connecting pipe and second connecting pipe in the refrigerator provided in the embodiment of this application.
[0110] See Figures 11 to 13 As shown, in some embodiments, the extending direction of the first connecting pipe 500 located on the outside of the box liner 800 is parallel to the extending plane of the back of the box liner 800. In this way, the first connecting pipe 500 occupies less space along the depth direction of the box.
[0111] In some embodiments, the first connecting pipe 500 located outside the casing 800 extends horizontally or vertically. That is, the first connecting pipe 500 is routed in a horizontal-vertical configuration. The horizontal direction aligns with the width direction of the casing, and the vertical direction aligns with the height direction of the casing. This facilitates the flow of refrigerant within the first connecting pipe 500.
[0112] In some embodiments, the extension direction of the second connecting pipe 700 located outside the box liner 800 is parallel to the extension plane of the back of the box liner 800. In this way, the space occupied by the second connecting pipe 700 is smaller along the depth direction of the box.
[0113] In some embodiments, the second connecting pipe 700 located outside the casing 800 extends horizontally or vertically. The horizontal direction aligns with the width direction of the casing. The vertical direction aligns with the height direction of the casing. This facilitates the flow of refrigerant within the second connecting pipe 700.
[0114] In some embodiments, the first connecting pipe 500 and the second connecting pipe 700 have the same diameter. This allows the first connecting pipe 500 and the second connecting pipe 700 to be processed using the same raw materials, which helps reduce processing costs.
[0115] In some embodiments, the first connecting pipe 500 and the second connecting pipe 700 may be made of aluminum or copper.
[0116] In some embodiments, the refrigeration system further includes a first identification structure.
[0117] The first identification structure is set on the first connecting pipe 500.
[0118] In some embodiments, the refrigeration system further includes a second identification structure.
[0119] The second identification structure is disposed on the second connecting pipe 700. The second identification structure and the first identification structure are configured to distinguish the first connecting pipe 500 and the second connecting pipe 700.
[0120] Specifically, at least one of the first marking structure and the second marking structure can be a serration. Alternatively, at least one of the first marking structure and the second marking structure can be a coating layer. Alternatively, at least one of the first marking structure and the second marking structure can be adhesive tape.
[0121] It is understandable that by setting the second identification structure and the first identification structure, it is easy to distinguish the first connecting pipe 500 and the second connecting pipe 700, so as to correctly connect them to the four-way valve 900, which helps to reduce installation errors.
[0122] In some embodiments, the refrigeration system further includes a first seal.
[0123] The box liner 800 is provided with a first through hole penetrating the back of the box liner 800, a first connecting pipe 500 is inserted into the first through hole, and a first sealing element is located between the outer wall of the first connecting pipe 500 and the inner wall of the first through hole to seal the first through hole.
[0124] It is understandable that by setting the first sealing element to seal the inner liner 800, the foam can be effectively prevented from entering the interior of the inner liner 800 through the first through hole.
[0125] Specifically, the material of the first seal can be rubber or silicone, etc.
[0126] In some embodiments, the refrigeration system further includes a second seal.
[0127] The box liner 800 is provided with a second through hole penetrating the back of the box liner 800, the second connecting pipe 700 is inserted into the second through hole, and the second sealing element is located between the outer wall of the second connecting pipe 700 and the inner wall of the second through hole to seal the second through hole.
[0128] It is understandable that by setting a second sealing element to seal the inner liner 800, the foam can be effectively prevented from entering the interior of the inner liner 800 through the second through hole.
[0129] Specifically, the material of the second seal can be rubber or silicone, etc.
[0130] In some embodiments, the first through hole may communicate with the second through hole.
[0131] Figure 14An installation method for the first connecting pipe and the second connecting pipe in a refrigerator provided in this application embodiment. Figure 15 Another installation method for the first connecting pipe and the second connecting pipe in the refrigerator provided in the embodiments of this application.
[0132] See Figure 14 and Figure 15 As shown, during the manufacturing process, the installation methods of the first connecting pipe 500 and the second connecting pipe 700 include:
[0133] like Figure 14 As shown, the pre-embedded method, that is, the first connecting pipe 500 and the second connecting pipe 700 are installed in advance before the box body is foamed, has low requirements for on-site operation, high convenience, and has little impact on the thickness of the insulation layer on the back of the box body. It is the recommended optimal production method.
[0134] like Figure 15 As shown, a pre-embedded conduit 1000 is installed. After the housing is foamed, a first connecting pipe 500 and a second connecting pipe 700 are inserted into the conduit 1000. The first connecting pipe 500 and the second connecting pipe 700 are connected to a four-way valve 900.
[0135] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
[0136] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.
Claims
1. A refrigerator, characterized in that, include: shell; The inner box (800) is located inside the outer shell. The inner box (800) is provided with a cold source chamber and a storage chamber, and the storage chamber is used to place food. The press chamber is located inside the outer casing; Refrigeration system, including: An evaporator (400) is located in the cold source chamber, and the evaporator (400) is provided with an evaporator inlet end (410) and an evaporator outlet end (420); The first connecting pipe (500) is optionally connected to the outlet end (420) of the evaporator; The return pipe (600) is provided with a return pipe inlet end (610) and a return pipe outlet end (620); The second connecting pipe (700) is optionally connected to the inlet end (610) of the return gas pipe; When the first connecting pipe (500) is connected to the evaporator outlet end (420) and the second connecting pipe (700) is connected to the return gas pipe inlet end (610), the end of the first connecting pipe (500) away from the evaporator (400) and the end of the second connecting pipe (700) away from the return gas pipe (600) are located inside the compressor compartment; When the first connecting pipe (500) is disconnected from the evaporator outlet end (420) and the second connecting pipe (700) is disconnected from the return gas pipe inlet end (610), the return gas pipe inlet end (610) is connected to the evaporator outlet end (420).
2. The refrigerator according to claim 1, characterized in that, The end of the first connecting pipe (500) away from the evaporator (400) is close to the end of the second connecting pipe (700) away from the return pipe (600), so that the end of the first connecting pipe (500) away from the evaporator (400) and the end of the second connecting pipe (700) away from the return pipe (600) are used to connect a four-way valve (900).
3. The refrigerator according to claim 1, characterized in that, When the first connecting pipe (500) is connected to the evaporator outlet end (420), the first connecting pipe (500) is welded to the evaporator outlet end (420).
4. The refrigerator according to claim 1, characterized in that, When the second connecting pipe (700) is connected to the inlet end (610) of the return gas pipe, the second connecting pipe (700) is welded to the inlet end (610) of the return gas pipe.
5. The refrigerator according to claim 1, characterized in that, The first connecting pipe (500) located outside the box liner (800) extends in a horizontal or vertical direction; The second connecting pipe (700) located outside the box liner (800) extends horizontally or vertically.
6. The refrigerator according to any one of claims 1 to 5, characterized in that, The first connecting pipe (500) and the second connecting pipe (700) have the same diameter.
7. The refrigerator according to claim 6, characterized in that, Also includes: A first identification structure is disposed on the first connecting pipe (500); A second identification structure is disposed on the second connecting pipe (700), and the second identification structure is configured to distinguish the first connecting pipe (500) from the second connecting pipe (700).
8. The refrigerator according to any one of claims 1 to 5, characterized in that, It also includes a first sealing element. The box liner (800) is provided with a first through hole penetrating the back of the box liner (800). The first connecting pipe (500) is inserted into the first through hole. The first sealing element is located between the outer wall of the first connecting pipe (500) and the inner wall of the first through hole to seal the first through hole.
9. The refrigerator according to any one of claims 1 to 5, characterized in that, It also includes a second sealing element. The box liner (800) is provided with a second through hole penetrating the back of the box liner (800). The second connecting pipe (700) is inserted into the second through hole. The second sealing element is located between the outer wall of the second connecting pipe (700) and the inner wall of the second through hole to seal the second through hole.
10. A refrigeration system for a refrigerator, characterized in that, include: An evaporator (400) is provided with an evaporator inlet end (410) and an evaporator outlet end (420); The first connecting pipe (500) is optionally connected to the outlet end (420) of the evaporator; The return pipe (600) is provided with a return pipe inlet end (610) and a return pipe outlet end (620); The second connecting pipe (700) is optionally connected to the inlet end (610) of the return air pipe; When the refrigerator is a counter-flow defrosting refrigerator, the first connecting pipe (500) is connected to the evaporator outlet end (420), and the second connecting pipe (700) is connected to the return gas pipe inlet end (610), so that the end of the first connecting pipe (500) away from the evaporator (400) and the end of the second connecting pipe (700) away from the return gas pipe (600) are located in the compressor compartment of the refrigerator; When the refrigerator is a non-reverse defrosting refrigerator, the first connecting pipe (500) is disconnected from the evaporator outlet end (420), and the second connecting pipe (700) is disconnected from the return gas pipe inlet end (610), so that the return gas pipe inlet end (610) is connected to the evaporator outlet end (420).