A refrigeration appliance

Abstract

The application relates to the technical field of refrigeration, and discloses a refrigeration equipment. The refrigeration equipment comprises an outer shell, a box body, a compressor warehouse body, a compressor, a four-way reversing valve, a condenser, an evaporator and a gas return pipe group. One of the gas return pipe group and the condenser is integrated with a first one-way valve and a second one-way valve, or the condenser is integrated with one of the first one-way valve and the second one-way valve, and the other one of the first one-way valve and the second one-way valve is integrated in the gas return pipe group. When assembled, the gas return pipe group and the condenser are respectively and independently assembled, and the gas return pipe group is communicated with the compressor, the four-way reversing valve, the condenser and the evaporator. The refrigeration equipment provided by the application has high installation efficiency and low failure rate.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and more particularly to a refrigeration device. Background Technology

[0002] A refrigerator or freezer is a refrigeration device that keeps food or other items at a constant low temperature.

[0003] In related technologies, refrigeration equipment includes a compressor, a four-way reversing valve, an evaporator, a condenser, a defrosting branch, and a refrigeration branch. The refrigeration branch includes refrigeration piping, a first one-way valve, and a first expansion valve. The defrosting branch includes defrosting piping, a second one-way valve, and a second expansion valve.

[0004] However, during the assembly of refrigeration equipment, the installation efficiency of the first and second check valves is low and the failure rate is high. Utility Model Content

[0005] This application provides a refrigeration device with high installation efficiency and low failure rate.

[0006] In a first aspect, this application provides a refrigeration device, comprising:

[0007] outer shell;

[0008] The inner liner is located inside the outer shell and has a storage compartment.

[0009] The press chamber is located inside the outer shell, and the press chamber contains the press chamber.

[0010] The compressor is located inside the compressor compartment;

[0011] The four-way reversing valve is located inside the compressor compartment, and the compressor is connected to the four-way reversing valve.

[0012] The condenser is located inside the compressor compartment. The condenser is equipped with a first port structure, a second port structure and a third port structure. The first port structure integrates a first check valve. The third port structure is connected to a four-way reversing valve and is connected to the inlet end of the condenser. The first port structure and the second port structure are both connected to the outlet end of the condenser.

[0013] The evaporator is located inside the storage room.

[0014] The return air assembly includes:

[0015] The return gas circulation pipeline is connected to the compressor, the four-way reversing valve and the evaporator respectively;

[0016] Refrigeration throttling piping;

[0017] The defrosting throttling pipeline is connected in parallel with the refrigeration throttling pipeline. One of the refrigeration throttling pipeline and the defrosting throttling pipeline is connected to the first port structure and the evaporator respectively, and the other is connected to the evaporator and the second port structure respectively and is integrated with a second one-way valve.

[0018] This eliminates the need to weld the first and second check valves during assembly, thus improving overall assembly efficiency. Furthermore, by pre-completing the welding of the first and second check valves through integration, the integrated return gas pipe assembly and condenser can be inspected. Once qualified, they can be used for overall assembly, thereby reducing the overall failure rate of the unit.

[0019] In some embodiments, the refrigeration throttling line is connected to the first port structure and the evaporator, respectively;

[0020] The defrosting throttling pipe is connected to the evaporator and the second port structure respectively. The defrosting throttling pipe integrates a second one-way valve. The extension direction of the second one-way valve is perpendicular to the horizontal plane, while the extension direction of the first one-way valve is parallel to the horizontal plane.

[0021] A foam layer is provided between the inner chamber, the press chamber and the outer shell, and the second one-way valve is located inside the foam layer.

[0022] In this way, the first one-way valve is integrated into the condenser, and the second one-way valve is integrated into the defrosting throttling line. This reduces the number of bends in the piping arrangement within the compressor compartment, which helps to reduce space occupation. Moreover, the second one-way valve is located within the foaming layer, which helps to reduce noise.

[0023] In some embodiments, the defrosting throttling line is connected to the first port structure and the evaporator, respectively;

[0024] The refrigeration throttling pipe is connected to the evaporator and the second port structure respectively, and a second one-way valve is integrated in the refrigeration throttling pipe; the extension direction of the second one-way valve is parallel to the horizontal plane, and the extension direction of the first one-way valve is perpendicular to the horizontal plane.

[0025] A foam layer is provided between the inner chamber, the press chamber and the outer shell, and the second one-way valve is located inside the foam layer.

[0026] In this way, the first one-way valve is integrated into the condenser, and the second one-way valve is integrated into the refrigeration throttling line. This reduces the number of bends in the piping arrangement within the compressor compartment, which helps to reduce space occupation. Moreover, the second one-way valve is located within the foaming layer, which helps to reduce noise.

[0027] In some embodiments, the return gas circulation pipeline includes a first return gas pipeline and a second return gas pipeline;

[0028] The first return gas pipeline is provided with a first weld joint structure and a second weld joint structure at both ends along the extension direction. The first weld joint structure is welded to the outlet end of the evaporator, and the second weld joint structure is welded to the four-way reversing valve.

[0029] The second return gas pipeline is provided with a third weld joint structure and a fourth weld joint structure at both ends along the extension direction. The third weld joint structure is welded to the four-way reversing valve, and the fourth weld joint structure is welded to the suction end of the compressor.

[0030] The first ends of the refrigeration throttling pipe and the defrosting throttling pipe are welded together to form a fifth weld structure, which is connected to the inlet end of the evaporator; the second end of the refrigeration throttling pipe is provided with a sixth weld structure, which is welded to the first port structure; the second end of the defrosting throttling pipe is provided with a seventh weld structure, which is welded to the second port structure.

[0031] In this way, the return air circulation pipeline is equipped with 7 welding joints, which reduces the number of welding operations and facilitates the assembly of the whole machine.

[0032] In some embodiments, the first return gas line is spaced apart from the refrigeration throttling line, the defrost throttling line, and the second return gas line.

[0033] This separation of the first return gas line from other lines minimizes their mutual interference. Without this isolation design, it would result in cooling loss during refrigeration, affecting cooling speed and energy consumption, and impacting defrosting heat and efficiency.

[0034] In some embodiments, along the width direction of the housing, the compressor is located on the side of the condenser away from the four-way reversing valve;

[0035] Inside the compressor compartment and along the width of the outer casing, the second return gas line is located on the side of the compressor away from the condenser; the refrigeration throttling line and the defrost throttling line are located on the side of the four-way reversing valve away from the condenser, and the first return gas line is located on the side of the refrigeration throttling line and the defrost throttling line away from the condenser.

[0036] This facilitates the welding of the return gas pipe assembly to the compressor, condenser, and four-way reversing valve, helps prevent pipes from flying off to the left and right of the compressor compartment, and helps reduce the overall length of the return gas pipe assembly.

[0037] In some embodiments, the top of the press chamber is provided with a first communication port, a second communication port and a third communication port that communicate with the press chamber;

[0038] Along the width of the outer casing, the first connection port is located on the side of the compressor away from the condenser, the second connection port is located on the side of the four-way reversing valve away from the condenser, and the third connection port is located on the side of the second connection port away from the four-way reversing valve.

[0039] The fourth weld joint of the second return gas pipeline is located in the compressor compartment via the first connecting port. The sixth weld joint of the refrigeration throttling pipeline, the seventh weld joint of the defrosting throttling pipeline, and the third weld joint of the second return gas pipeline are located in the compressor compartment via the second connecting port. The second weld joint of the first return gas pipeline is located in the compressor compartment via the third connecting port.

[0040] In this way, the first return gas pipeline is separated from other pipelines, making it less likely for them to interfere with each other.

[0041] In some embodiments, the diameter of the return gas circulation pipeline is larger than the diameter of the defrost throttling pipeline, and the diameter of the defrost throttling pipeline is larger than the diameter of the refrigeration throttling pipeline.

[0042] In this way, the diameter of the return gas circulation line is larger than that of the defrost throttling line, which facilitates the return of gas from the compressor. The diameter of the defrost throttling line is larger than that of the refrigeration throttling line, which allows a larger flow of refrigerant to pass through the defrost throttling line, thereby achieving faster defrosting.

[0043] Secondly, this application provides a refrigeration device, comprising:

[0044] outer shell;

[0045] The inner liner is located inside the outer shell and has a storage compartment.

[0046] The press chamber is located inside the outer shell, and the press chamber contains the press chamber.

[0047] The compressor is located inside the compressor compartment;

[0048] The four-way reversing valve is located inside the compressor compartment, and the compressor is connected to the four-way reversing valve.

[0049] The condenser is located inside the compressor compartment. The condenser integrates one of the first check valve and the second check valve. The condenser is connected to the four-way reversing valve.

[0050] The evaporator is located inside the storage room.

[0051] The return air pipe assembly integrates one of the first check valve and the second check valve.

[0052] During assembly, after the return gas pipe assembly and condenser are assembled separately, connect the return gas pipe assembly to the compressor, four-way reversing valve, condenser and evaporator respectively.

[0053] This eliminates the need to weld the first and second check valves during assembly, thus improving overall assembly efficiency. Furthermore, by pre-completing the welding of the first and second check valves through integration, the integrated return gas pipe assembly and condenser can be inspected. Once qualified, they can be used for overall assembly, thereby reducing the overall failure rate of the unit.

[0054] Thirdly, this application provides a refrigeration device, comprising:

[0055] outer shell;

[0056] The inner liner is located inside the outer shell and has a storage compartment.

[0057] The press chamber is located inside the outer shell, and the press chamber contains the press chamber.

[0058] The compressor is located inside the compressor compartment;

[0059] The four-way reversing valve is located inside the compressor compartment, and the compressor is connected to the four-way reversing valve.

[0060] The condenser is located inside the compressor compartment and is connected to the four-way reversing valve.

[0061] The evaporator is located inside the storage room.

[0062] The return gas pipe assembly; one of the return gas pipe assembly and the condenser integrates a first check valve and a second check valve.

[0063] During assembly, after the return gas pipe assembly and condenser are assembled separately, connect the return gas pipe assembly to the compressor, four-way reversing valve, condenser and evaporator respectively.

[0064] This eliminates the need to weld the first and second check valves during assembly, thus improving overall assembly efficiency. Furthermore, by pre-completing the welding of the first and second check valves through integration, the integrated return gas pipe assembly and condenser can be inspected. Once qualified, they can be used for overall assembly, thereby reducing the overall failure rate of the unit. Attached Figure Description

[0065] Figure 1 A front view of a refrigeration device provided in an embodiment of this application;

[0066] Figure 2 A cross-sectional view of a refrigeration device provided in an embodiment of this application;

[0067] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0068] Figure 4 This is a schematic diagram of the refrigeration system in the refrigeration equipment provided in the embodiments of this application;

[0069] Figure 5 This is a schematic diagram of the structure of the condenser in the refrigeration equipment provided in the embodiments of this application;

[0070] Figure 6This is a schematic diagram of the structure of the return gas pipe assembly in the refrigeration equipment provided in the embodiments of this application;

[0071] Figure 7 This is a structural schematic diagram of the return gas pipe assembly in the refrigeration equipment provided in an embodiment of this application from another angle.

[0072] Figure 8 for Figure 7 A magnified view of a section at point B in the middle;

[0073] Figure 9 for Figure 7 A magnified view of a section at point C;

[0074] Figure 10 A schematic diagram of the return gas pipe assembly in the refrigeration equipment provided in the embodiments of this application from another angle;

[0075] Figure 11 for Figure 10 A magnified view of a section at point D.

[0076] Explanation of reference numerals in the attached figures:

[0077] 100 - Housing; 110 - Outer shell; 120 - Press chamber;

[0078] 200-Gate Body;

[0079] 300 - Refrigeration system; 310 - Compressor; 320 - Four-way reversing valve; 330 - Condenser; 331 - First port structure; 332 - Second port structure; 333 - Third port structure; 334 - Condenser inlet end; 335 - Condenser outlet end; 340 - Evaporator; 350 - Return gas pipe assembly; 351 - Return gas circulation pipe; 3511 - First return gas pipe; 3512 - Second return gas pipe; 3513 - First weld joint structure; 3514 - Second weld joint structure; 3515 - Third weld joint structure; 3516 - Fourth weld joint structure; 352 - Refrigeration throttling pipe; 3521 - Sixth weld joint structure; 353 - Defrosting throttling pipe; 3531 - Seventh weld joint structure; 354 ​​- Fifth weld joint structure; 360 - First check valve; 370 - Second check valve; 380 - Separator. Detailed Implementation

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0085] 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0086] In related technologies, refrigeration equipment includes a compressor, a four-way reversing valve, an evaporator, a condenser, a defrosting branch, and a refrigeration branch. The refrigeration branch includes refrigeration piping, a first one-way valve, and a first expansion valve. The defrosting branch includes defrosting piping, a second one-way valve, and a second expansion valve. During refrigeration equipment assembly, the first and second one-way valves are welded as independent components. The entire unit is dynamically and rapidly welded on the production line. The welding flame temperature causes deformation of the internal structure of the one-way valves, ultimately affecting the overall operational quality of the unit.

[0087] To address the aforementioned technical problems, the refrigerator provided in this application includes an outer shell, a liner, a compressor compartment, a compressor, a four-way reversing valve, a condenser, an evaporator, and a return gas pipe assembly. One of the return gas pipe assembly and the condenser integrates a first one-way valve and a second one-way valve, or the condenser integrates one of the first and second one-way valves, and the return gas pipe assembly integrates the other of the first and second one-way valves. During assembly, after the return gas pipe assembly and the condenser are assembled separately, the return gas pipe assembly is connected to the compressor, the four-way reversing valve, the condenser, and the evaporator respectively. This eliminates the need to weld the first and second one-way valves during the overall assembly, thereby improving overall assembly efficiency. Furthermore, by integrating the first and second one-way valves in advance, the integrated return gas pipe assembly and condenser can be inspected. Once the inspection is passed, they can be used for overall assembly, thus reducing the overall failure rate of the refrigerator.

[0088] This application provides a refrigeration device, which can be a refrigerator or a freezer, etc. The refrigerator can be a frost-free refrigerator or a direct-cooling refrigerator.

[0089] Figure 1 This is a front view of the refrigeration equipment provided in an embodiment of this application. Figure 2 A cross-sectional view of a refrigeration device provided in an embodiment of this application.

[0090] See Figure 1 and Figure 2 As shown, the refrigeration equipment includes a housing 100.

[0091] The housing 100 includes an outer shell 110, a liner, and a press chamber 120. The outer shell 110 has a first receiving cavity with a first access port and a second access port, which are respectively located on opposite sides of the outer shell 110 in the depth direction of the housing 100. The first access port may be located on the front side of the outer shell 110, and the second access port may be located on the rear side of the outer shell 110.

[0092] The compressor compartment 120 is located inside the outer casing 110, and the compressor compartment 120 is provided with a compressor chamber. The opening of the compressor chamber is opposite to the second loading port, and the compressor and condenser, etc. can be placed into the compressor chamber through the second loading port and the opening.

[0093] The liner is located inside the outer shell 110 and forms at least one storage compartment. The liner has a third access port opposite to the first access port, allowing items to be placed into the storage compartment via both the third and first access ports. A foam layer is filled between the liner, the outer shell 110, and the compressor chamber. This foam layer provides thermal insulation for the storage compartment, ensuring its cooling effect.

[0094] The storage room can be at least one, and when there is only one storage room, it can be any one of a refrigerator, freezer, or variable temperature compartment. When there are two or more storage rooms, the multiple storage rooms can include at least one or more of a refrigerator, freezer, or variable temperature compartment.

[0095] In some embodiments, the outer casing 110 may include a first bottom plate, a first top plate, first side plates, and a first back plate. The first bottom plate and the first top plate are arranged opposite each other in the longitudinal direction (direction indicated by the Z-axis) of the casing 100. There are two first side plates, which are located on both sides of the first bottom plate and the first top plate and are connected to the first bottom plate and the first top plate. The two first side plates, the first bottom plate, and the first top plate form a first access opening. The first back plate is opposite to the first access opening and is connected to the first top plate and the two first side plates. The first back plate, the two first side plates, and the first bottom plate form a second access opening.

[0096] In some possible implementations of the embodiments of this application, the first top plate and the two first side plates can be an integral structure. This configuration simplifies the structure of the outer shell, improves the production efficiency of the outer shell, and facilitates the assembly of the box. Exemplarily, the first top plate and the two first side plates can be formed by bending the same sheet material.

[0097] In some embodiments, the press chamber 120 may include a second bottom plate, a second top plate, a second back plate, and two second side plates. The second bottom plate abuts against the first bottom plate of the outer casing 110 to form the bottom surface of the housing 100. The second top plate is opposite to the second bottom plate in the longitudinal direction (direction indicated by the Z-axis) of the housing 100. The two second side plates are located on both sides of the second bottom plate and the second top plate, and the second side plates connect the second bottom plate and the second top plate. The two second side plates, together with the second bottom plate and the second top plate, form an opening.

[0098] In some possible implementations of this application, the second top plate and the first bottom plate of the outer casing can be an integral structure. This configuration simplifies the structure of the press chamber 120, facilitates the assembly of the refrigeration equipment, and improves the production efficiency of the refrigeration equipment. Exemplarily, the second top plate and the first bottom plate can be formed by bending the same sheet material.

[0099] In some embodiments, the refrigeration device includes a door 200.

[0100] The door 200 is an openable cover located on the front of the box 100 to close and open the storage compartment, allowing items to be placed or removed from the storage compartment. It should be noted that there can be one, two, or more doors 200.

[0101] In some embodiments, the refrigeration equipment includes a refrigeration system 300. The refrigeration system 300 is located inside the enclosure 100. The refrigeration system 300 can cool the storage compartment.

[0102] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle. Figure 4 A schematic diagram of the refrigeration system in the refrigeration equipment provided in the embodiments of this application.

[0103] See Figure 3 and Figure 4 As shown, in some embodiments, the refrigeration system 300 includes a compressor 310. The compressor 310 is responsible for compressing the low-pressure gaseous refrigerant into a high-pressure gaseous refrigerant.

[0104] In some embodiments, the refrigeration system 300 includes a four-way reversing valve 320. The four-way reversing valve 320 is used to control the connection sequence between the evaporator and condenser and the compressor 310, thereby enabling the high and low pressure functions of the condenser and evaporator to be reversed. The compressor 310 is connected to the four-way reversing valve 320.

[0105] In some embodiments, the refrigeration system 300 includes a condenser 330. The condenser 330 is in communication with a four-way reversing valve 320.

[0106] In some embodiments, the refrigeration system 300 includes an evaporator 340. The evaporator 340 is in communication with a four-way reversing valve 320. The evaporator 340 is located in a storage compartment.

[0107] When compressor 310 is operating, low-temperature, low-pressure refrigerant is drawn into compressor 310 and compressed into high-temperature, high-pressure superheated gas within the cylinder of compressor 310 before being discharged into condenser 330. The high-temperature, high-pressure refrigerant gas dissipates heat through the condenser, its temperature continuously decreasing until it is gradually cooled into room-temperature, high-pressure saturated vapor, and further cooled into saturated liquid. The pressure of the refrigerant remains almost constant throughout the condensation process. The throttling device may include a pressure reducing pipe or an electronic expansion valve. This application describes the throttling device as including a pressure reducing pipe, as pressure reducing pipes are low in cost and less prone to malfunction. The condensed saturated liquid refrigerant undergoes throttling and pressure reduction through the pressure reducing pipe, transforming the refrigerant into room-temperature, low-pressure wet vapor. Subsequently, the room-temperature, low-pressure wet vapor absorbs heat and vaporizes through evaporator 340, not only lowering the temperature of evaporator 340 and its surroundings but also transforming the refrigerant into a low-temperature, low-pressure gas. Evaporator 340 cools the air inside the storage room, thereby lowering the temperature of the air inside the storage room. The refrigerant from the evaporator 340 returns to the compressor 310, repeating the above process so that the evaporator 340 can continuously cool the air in the storage room.

[0108] Furthermore, the refrigeration system may also include a dryer filter, which is connected between the condenser and the throttling device via piping. The dryer filter can filter out moisture and impurities from the refrigerant.

[0109] See Figure 3 and Figure 4 As shown, in some embodiments, the refrigeration system 300 includes a return pipe assembly 350 for connecting the compressor 310, evaporator 340, condenser 330 and four-way reversing valve 320 to each other.

[0110] The return gas pipe assembly 350 and the condenser 330 each integrate a first one-way valve 360 ​​and a second one-way valve 370, or the condenser 330 integrates one of the first one-way valve 360 ​​and the second one-way valve 370, while the return gas pipe assembly 350 integrates the other of the first one-way valve 360 ​​and the second one-way valve 370. During assembly, after the return gas pipe assembly 350 and the condenser 330 are assembled separately, the return gas pipe assembly 350 is connected to the compressor 310, the four-way reversing valve 320, the condenser 330, and the evaporator 340, respectively. This eliminates the need to weld the first one-way valve 360 ​​and the second one-way valve 370 during the overall assembly, thus improving overall assembly efficiency. Furthermore, by pre-completing the welding of the first one-way valve 360 ​​and the second one-way valve 370 through integration, the integrated return gas pipe assembly 350 and the condenser 330 can be inspected. Once the inspection is passed, they can be used for overall assembly, thereby reducing the overall failure rate of the machine.

[0111] Specifically, the first check valve 360 ​​and the second check valve 370 are both integrated into the condenser 330. In this way, the first check valve 360 ​​and the second check valve 370 can be located inside the compressor compartment, which facilitates maintenance and replacement.

[0112] Specifically, the first one-way valve 360 ​​and the second one-way valve 370 are both integrated on the return air pipe assembly 350. In this way, the first one-way valve 360 ​​and the second one-way valve 370 can be located between the inner chamber and the outer casing 110, thereby making full use of space and making the compressor compartment larger.

[0113] Figure 5 This is a schematic diagram of the structure of the condenser in the refrigeration equipment provided in the embodiments of this application.

[0114] See Figure 5As shown, in some embodiments, the condenser 330 is provided with a first port structure 331, a second port structure 332, and a third port structure 333. The first port structure 331 integrates a first one-way valve 360. The third port structure 333 is connected to a four-way reversing valve 320 and to the inlet end 334 of the condenser. The first port structure 331 and the second port structure 332 are both connected to the outlet end 335 of the condenser.

[0115] Figure 6 This is a schematic diagram of the return gas pipe assembly in the refrigeration equipment provided in the embodiments of this application.

[0116] See Figure 6 As shown, in some embodiments, the return gas assembly 350 includes a return gas circulation line 351, which is connected to the compressor 310, the four-way reversing valve 320 and the evaporator 340 respectively.

[0117] In some embodiments, the return gas assembly 350 includes a refrigeration throttling line 352.

[0118] In some embodiments, the return gas pipe assembly 350 includes a defrost throttling pipe 353. The defrost throttling pipe 353 is connected in parallel with the refrigeration throttling pipe 352. One of the refrigeration throttling pipe 352 and the defrost throttling pipe 353 is connected to the first port structure 331 and the evaporator 340 respectively, while the other is connected to the evaporator 340 and the second port structure 332 respectively and integrates a second one-way valve 370. This eliminates the need to weld the first one-way valve 360 ​​and the second one-way valve 370 during assembly, thereby improving overall assembly efficiency. Furthermore, by pre-completing the welding of the first one-way valve 360 ​​and the second one-way valve 370 through integration, the integrated return gas pipe assembly 350 and the condenser 330 can be inspected. Once the inspection is passed, they can be used for overall assembly, thus reducing the overall failure rate of the unit.

[0119] See Figure 3 and Figure 4 As shown, in some embodiments, the refrigeration throttling pipe 352 is connected to both the first port structure 331 and the evaporator 340. The defrosting throttling pipe 353 is connected to both the evaporator 340 and the second port structure 332, and a second one-way valve 370 is integrated within the defrosting throttling pipe 353. That is, the first one-way valve 360 ​​is opened during refrigeration, and the second one-way valve 370 is opened during defrosting.

[0120] When the refrigeration equipment is cooling, ports 1 / 2 and 4 / 3 of the four-way reversing valve 320 are connected. High-temperature refrigerant discharged from the compressor 310 enters the condenser 330 through port 1 / 2 of the four-way reversing valve 320. Two branches appear at the outlet of the condenser 330. One branch is the refrigerant throttling line 352. At this time, the second one-way valve 370 is open under the pressure at the high-pressure end. The refrigerant passes through the second dryer filter and is throttled by the first throttling device before entering the evaporator 340 for cooling. Simultaneously, the first one-way valve 360 ​​in the defrost throttling line 353 is closed under the pressure of the high-pressure refrigerant flowing out of the condenser 330. Therefore, the defrost throttling line 353 is blocked, and the refrigerant can only return to the compressor 310 through the refrigeration throttling line 352, through the evaporator 340, and then by switching the port 4 / 3 connection of the four-way reversing valve 320.

[0121] During defrosting, ports 1 / 4 and 2 / 3 of the four-way reversing valve 320 are connected. High-temperature refrigerant discharged from the compressor 310 enters the evaporator 340 through port 1 / 4 of the four-way reversing valve 320. The defrosting flow outlet of the evaporator 340 branches into two paths. One branch is the refrigerant throttling line 352. At this time, the second one-way valve 370 is closed due to the pressure at the low-pressure end after the refrigerant throttling. Simultaneously, the defrosting throttling line 353, under the action of the high-pressure refrigerant flowing out of the evaporator 340, pushes the first one-way valve 360 ​​to open. The refrigerant can only return to the compressor 310 through the condenser 330 via the defrosting throttling line 353 and the switching valve 2 / 3 connection.

[0122] In some embodiments, the extension direction of the second one-way valve 370 is perpendicular to the horizontal plane, and the extension direction of the first one-way valve 360 ​​is parallel to the horizontal plane. The extension direction of the second one-way valve 370 is perpendicular to the horizontal plane, and the extension direction of the first one-way valve 360 ​​is parallel to the horizontal plane. The extension direction of the second one-way valve 370 is consistent with the height direction of the housing 100, which can be the direction indicated by the Z-axis. The extension direction of the first one-way valve 360 ​​can be consistent with the depth direction of the housing 100.

[0123] Understandably, due to the requirements on the extension direction of the first one-way valve 360 ​​and the second one-way valve 370, compared to integrating both the first one-way valve 360 ​​and the second one-way valve 370 onto the condenser 330, integrating the first one-way valve 360 ​​onto the condenser 330 and the second one-way valve 370 onto the defrosting throttling pipe 353 results in fewer bends in the piping arrangement within the compressor compartment, which helps reduce space occupancy.

[0124] In some embodiments, the second one-way valve 370 is located within the foam layer. This reduces noise.

[0125] In some embodiments, the defrosting throttling line 353 includes a first throttling device and a first check valve 360 ​​located between the first throttling device and the condenser 330.

[0126] In some embodiments, the defrosting throttling line 353 includes a first dryer filter. The first dryer filter may be located between the evaporator 340 and the first throttling device.

[0127] In some embodiments, the refrigeration throttling line 352 includes a second throttling device, and a second one-way valve 370 is located between the condenser 330 and the second throttling device.

[0128] It should be noted that the first throttling device and the second throttling device can be a throttling pipe or a throttling valve.

[0129] In some embodiments, the refrigeration throttling line 352 includes a second filter dryer. The second filter dryer may be located between the second throttling device and the second check valve 370. Alternatively, the second filter dryer may be located between the condenser 330 and the second check valve 370.

[0130] Figure 7 This is a structural schematic diagram of the return gas pipe assembly in the refrigeration equipment provided in an embodiment of this application from another angle. Figure 8 for Figure 7 A magnified view of a section at point B. Figure 9 for Figure 7 A magnified view of a section at point C. Figure 10 This is a schematic diagram of the return gas pipe assembly in the refrigeration equipment provided in the embodiments of this application from another angle. Figure 11 for Figure 10 A magnified view of a section at point D.

[0131] See Figures 7 to 11 As shown, in some embodiments, the return gas circulation line 351 includes a first return gas line 3511 and a second return gas line 3512.

[0132] The first return gas pipeline 3511 is provided with a first weld structure 3513 and a second weld structure 3514 at both ends along the extension direction. The first weld structure 3513 is welded to the outlet end of the evaporator 340, and the second weld structure 3514 is welded to the four-way reversing valve 320.

[0133] The second return gas pipeline 3512 is provided with a third weld structure 3515 and a fourth weld structure 3516 at both ends along the extension direction. The third weld structure 3515 is welded to the four-way reversing valve 320, and the fourth weld structure 3516 is welded to the suction end of the compressor 310.

[0134] The first ends of the refrigeration throttling pipe 352 and the defrosting throttling pipe 353 are welded together to form a fifth weld structure 354, which is connected to the inlet end of the evaporator 340. The second end of the refrigeration throttling pipe 352 is provided with a sixth weld structure 3521, which is welded to the first port structure 331. The second end of the defrosting throttling pipe 353 is provided with a seventh weld structure 3531, which is welded to the second port structure 332.

[0135] Understandably, the return air circulation pipe 351 has 7 welding joints, which is a small number and facilitates the assembly of the whole machine.

[0136] When the refrigeration equipment is cooling, ports 1 / 2 and 4 / 3 of the four-way reversing valve 320 are connected. High-temperature refrigerant discharged from the compressor 310 enters the four-way reversing valve 320 through the second return gas line 3512, and then enters the condenser 330 through port 1 / 2 of the four-way reversing valve 320. Two branches appear at the outlet of the condenser 330; one branch is the refrigerant throttling line 352. At this time, the second one-way valve 370 is open under the pressure at the high-pressure end. The refrigerant passes through the second dryer filter and is throttled by the first throttling device before entering the evaporator 340 for cooling. Simultaneously, the first one-way valve 360 ​​in the defrosting throttling line 353 is closed under the action of the high-pressure refrigerant flowing out of the condenser 330. Therefore, the defrosting throttling pipe 353 is blocked, and the refrigerant can only pass through the refrigeration throttling pipe 352, through the evaporator 340, and then through the first return gas pipe 3511 into the four-way reversing valve 320. By switching the port 4 / 3 of the four-way reversing valve 320, it can return to the compressor 310.

[0137] During defrosting, ports 1 / 4 and 2 / 3 of the four-way reversing valve 320 are connected. High-temperature refrigerant discharged from the compressor 310 enters the four-way reversing valve 320 through the second return gas line 3512 and the first return gas line 3511, and then enters the evaporator 340 through port 1 / 4 of the four-way reversing valve 320. The defrosting flow outlet of the evaporator 340 branches into two paths. One branch is the refrigerant throttling line 352. At this time, the second one-way valve 370 is closed due to the pressure at the low-pressure end after the refrigerant throttling. Simultaneously, the defrosting throttling line 353, under the action of the high-pressure refrigerant flowing out of the evaporator 340, pushes the first one-way valve 360 ​​to open. The refrigerant can only return to the compressor 310 through the condenser 330 via the defrosting throttling line 353 and then through the switching valve 2 / 3.

[0138] In some embodiments, the first return gas line 3511 is spaced apart from the refrigeration throttling line 352, the defrosting throttling line 353, and the second return gas line 3512. Specifically, the first return gas line 3511 can be separated from other lines by a separator 380.

[0139] It is understandable that when the refrigeration equipment switches between cooling and defrosting, the temperature of the coolant in the first return gas pipe 3511 changes significantly. Isolating the first return gas pipe 3511 from other pipes will prevent them from affecting each other. Without isolation design, it will cause loss of cooling capacity during cooling, affecting the cooling speed and cooling energy consumption, and affect the defrosting heat during defrosting, resulting in low defrosting efficiency.

[0140] In some embodiments, the second return gas line 3512 is spaced apart from the refrigeration throttling line 352 and the defrosting throttling line 353, respectively. In this way, the second return gas line 3512 is separated from other lines and is less likely to interfere with each other.

[0141] See Figure 2 and Figure 3 As shown, in some embodiments, along the width direction of the housing 110, the compressor 310 is located on the side of the condenser 330 opposite to the four-way reversing valve 320.

[0142] Within the compressor compartment and along the width of the outer casing 110, the second return gas line 3512 is located on the side of the compressor 310 away from the condenser 330. The refrigeration throttling line 352 and the defrost throttling line 353 are located on the side of the four-way reversing valve 320 away from the condenser 330, and the first return gas line is also located on the side of the refrigeration throttling line 352 and the defrost throttling line 353 away from the condenser 330. This facilitates welding the return gas line assembly 350 to the compressor 310, the condenser 330, and the four-way reversing valve 320 respectively, helps prevent pipes from flying off to the left and right of the compressor compartment, and reduces the overall length of the return gas line assembly 350.

[0143] In some embodiments, the top of the press chamber 120 is provided with a first communication port, a second communication port and a third communication port communicating with the press chamber.

[0144] Along the width direction of the outer casing 110, the first connecting port is located on the side of the compressor 310 away from the condenser 330, the second connecting port is located on the side of the four-way reversing valve 320 away from the condenser 330, and the third connecting port is located on the side of the second connecting port away from the four-way reversing valve 320.

[0145] The fourth weld joint structure 3516 of the second return gas pipeline 3512 is located inside the compressor compartment via the first connecting port. The sixth weld joint structure 3521 of the refrigeration throttling pipeline 352, the seventh weld joint structure 3531 of the defrosting throttling pipeline 353, and the third weld joint structure 3515 of the second return gas pipeline are located inside the compressor compartment via the second connecting port. The second weld joint structure 3514 of the first return gas pipeline 3511 is located inside the compressor compartment via the third connecting port. This separates the first return gas pipeline 3511, preventing it from interfering with other pipelines. Without this isolation design, it would result in cooling loss during refrigeration, affecting refrigeration speed and energy consumption, and affecting defrosting heat during defrosting, leading to low defrosting efficiency.

[0146] In some embodiments, the diameter of the return gas circulation pipe 351 is larger than the diameter of the defrost throttling pipe 353, and the diameter of the defrost throttling pipe 353 is larger than the diameter of the refrigerant throttling pipe 352. This allows for easier return gas circulation from the compressor 310. The larger diameter of the defrost throttling pipe 353 allows for a larger flow of refrigerant through the defrost throttling pipe 353, thus enabling faster defrosting.

[0147] In other embodiments, the defrosting throttling line 353 is connected to both the first port structure 331 and the evaporator 340. The refrigeration throttling line 352 is connected to both the evaporator 340 and the second port structure 332, and a second one-way valve 370 is integrated within the refrigeration throttling line 352. It should be noted that this embodiment differs from the previous embodiments in that the first one-way valve 360 ​​and the second one-way valve 370 are interchanged; that is, the first one-way valve 360 ​​is opened during defrosting, and the second one-way valve 370 is opened during refrigeration.

[0148] When the refrigeration equipment is cooling, ports 1 / 2 and 4 / 3 of the four-way reversing valve 320 are connected. High-temperature refrigerant discharged from the compressor 310 enters the condenser 330 through port 1 / 2 of the four-way reversing valve 320. Two branches appear at the outlet of the condenser 330. One branch is the refrigerant throttling line 352. At this time, the second one-way valve 370 is open under the pressure at the high-pressure end. The refrigerant passes through the second dryer filter and is throttled by the first throttling device before entering the evaporator 340 for cooling. Simultaneously, the second one-way valve 370 in the defrost throttling line 353 is closed under the pressure of the high-pressure refrigerant flowing out of the condenser 330. Therefore, the defrost throttling line 353 is blocked, and the refrigerant can only return to the compressor 310 through the refrigeration throttling line 352, through the evaporator 340, and then by switching the port 4 / 3 connection of the four-way reversing valve 320.

[0149] During defrosting, ports 1 / 4 and 2 / 3 of the four-way reversing valve 320 are connected. High-temperature refrigerant discharged from the compressor 310 enters the evaporator 340 through port 1 / 4 of the four-way reversing valve 320. The defrosting flow outlet of the evaporator 340 branches into two paths. One branch is the refrigerant throttling line 352. At this time, the first one-way valve 360 ​​is closed due to the pressure at the low-pressure end after the refrigerant throttling. Simultaneously, the defrosting throttling line 353, under the action of the high-pressure refrigerant flowing out of the evaporator 340, pushes the second one-way valve 370 to open. The refrigerant can only return to the compressor 310 through the condenser 330 via the defrosting throttling line 353 and the switching valve 2 / 3 connection.

[0150] In some embodiments, the extension direction of the first one-way valve 360 ​​is perpendicular to the horizontal plane, and the extension direction of the second one-way valve 370 is parallel to the horizontal plane. It is understood that, due to the requirements on the extension directions of the first one-way valve 360 ​​and the second one-way valve 370, compared to integrating both the first one-way valve 360 ​​and the second one-way valve 370 onto the condenser 330, integrating the first one-way valve 360 ​​onto the condenser 330 and the second one-way valve 370 onto the refrigeration throttling pipe 352 results in fewer bends in the piping arrangement within the compressor compartment, which helps reduce space occupancy. The extension direction of the first one-way valve 360 ​​is consistent with the height direction of the housing 100, wherein the height direction of the housing 100 can be the direction indicated by the Z-axis. The extension direction of the second one-way valve 370 can be consistent with the depth direction of the housing 100.

[0151] In some embodiments, the second one-way valve 370 is located within the foam layer. This reduces noise.

[0152] In some embodiments, the refrigeration system 300 includes a return gas pipe assembly 350, which connects the compressor 310, evaporator 340, condenser 330, and four-way reversing valve 320. The return gas pipe assembly 350 includes a return gas circulation pipe 351. The return gas circulation pipe 351 includes a first return gas pipe 3511 and a second return gas pipe 3512. The return gas pipe assembly 350 includes a refrigeration throttling pipe 352 and a defrost throttling pipe 353.

[0153] When the refrigeration equipment is cooling, ports 1 / 2 and 4 / 3 of the four-way reversing valve 320 are connected. High-temperature refrigerant discharged from the compressor 310 enters the four-way reversing valve 320 through the second return gas line 3512, and then enters the condenser 330 through port 1 / 2 of the four-way reversing valve 320. Two branches appear at the outlet of the condenser 330; one branch is the refrigerant throttling line 352. At this time, the first one-way valve 360 ​​is open under the pressure at the high-pressure end. The refrigerant passes through the second dryer filter and is throttled by the first throttling device before entering the evaporator 340 for cooling. Simultaneously, the second one-way valve 370 in the defrosting throttling line 353 is closed under the action of the high-pressure refrigerant flowing out of the condenser 330. Therefore, the defrosting throttling pipe 353 is blocked, and the refrigerant can only pass through the refrigeration throttling pipe 352, through the evaporator 340, and then through the first return gas pipe 3511 into the four-way reversing valve 320. By switching the port 4 / 3 of the four-way reversing valve 320, it can return to the compressor 310.

[0154] During defrosting, ports 1 / 4 and 2 / 3 of the four-way reversing valve 320 are connected. High-temperature refrigerant discharged from the compressor 310 enters the four-way reversing valve 320 through the second return gas line 3512 and the first return gas line 3511, and then enters the evaporator 340 through port 1 / 4 of the four-way reversing valve 320. The defrosting flow outlet of the evaporator 340 branches into two paths. One branch is the refrigerant throttling line 352. At this time, the first one-way valve 360 ​​is closed due to the pressure at the low-pressure end after the refrigerant throttling. Simultaneously, the defrosting throttling line 353, under the action of the high-pressure refrigerant flowing out of the evaporator 340, pushes the second one-way valve 370 to open. The refrigerant can only return to the compressor 310 through the condenser 330 via the defrosting throttling line 353 and the switching valve 2 / 3 connection.

[0155] 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.

[0156] 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 refrigeration device, characterized in that, include: Outer shell (110); The inner box is located inside the outer shell (110), and the inner box is provided with a storage compartment; The press chamber (120) is located inside the outer shell (110), and the press chamber (120) is provided with a press chamber; The compressor (310) is located inside the compressor compartment; A four-way reversing valve (320) is located inside the compressor compartment, and the compressor (310) is connected to the four-way reversing valve (320); The condenser (330) is located inside the compressor compartment. The condenser (330) is provided with a first port structure (331), a second port structure (332) and a third port structure (333). The first port structure (331) integrates a first one-way valve (360). The third port structure (333) is connected to a four-way reversing valve (320). The third port structure (333) is connected to the inlet end (334) of the condenser. The first port structure (331) and the second port structure (332) are both connected to the outlet end (335) of the condenser. Evaporator (340) is located inside the storage room; The return air assembly (350) includes: The return gas circulation pipeline (351) is connected to the compressor (310), the four-way reversing valve (320) and the evaporator (340) respectively; Refrigeration throttling pipe (352); The defrosting throttling line (353) and the refrigeration throttling line (352) are respectively connected to the first port structure (331) and the evaporator (340), and the other is connected to the evaporator (340) and the second port structure (332) and is integrated with a second one-way valve (370).

2. The refrigeration equipment according to claim 1, characterized in that, The refrigeration throttling pipe (352) is connected to the first port structure (331) and the evaporator (340) respectively; The defrosting throttling pipe (353) is connected to the evaporator (340) and the second port structure (332) respectively, and the defrosting throttling pipe (353) integrates a second one-way valve (370). A foam layer is provided between the inner chamber, the press chamber (120) and the outer shell (110), and the second one-way valve (370) is located within the foam layer.

3. The refrigeration equipment according to claim 1, characterized in that, The defrosting throttling pipe (353) is connected to the first port structure (331) and the evaporator (340) respectively; The refrigeration throttling pipe (352) is connected to the evaporator (340) and the second port structure (332) respectively, and a second one-way valve (370) is integrated inside the refrigeration throttling pipe (352). A foam layer is provided between the inner chamber, the press chamber (120) and the outer shell (110), and the second one-way valve (370) is located within the foam layer.

4. The refrigeration equipment according to claim 2, characterized in that, The return gas circulation pipeline (351) includes a first return gas pipeline (3511) and a second return gas pipeline (3512); The first return gas pipeline (3511) has a first weld structure (3513) and a second weld structure (3514) at both ends along the extension direction. The first weld structure (3513) is welded to the outlet end of the evaporator (340), and the second weld structure (3514) is welded to the four-way reversing valve (320). The second return gas pipeline (3512) has a third weld structure (3515) and a fourth weld structure (3516) respectively at both ends along the extension direction. The third weld structure (3515) is welded to the four-way reversing valve (320), and the fourth weld structure (3516) is welded to the suction end of the compressor (310). The first ends of the refrigeration throttling pipe (352) and the defrosting throttling pipe (353) are welded together to form a fifth weld structure (354), which is connected to the inlet end of the evaporator (340). The second end of the refrigeration throttling pipe (352) is provided with a sixth weld structure (3521), which is welded to the first port structure (331). The second end of the defrosting throttling pipe (353) is provided with a seventh weld structure (3531), which is welded to the second port structure (332).

5. The refrigeration equipment according to claim 4, characterized in that, The first return gas line (3511) is spaced from the refrigeration throttling line (352), the defrosting throttling line (353), and the second return gas line (3512).

6. The refrigeration equipment according to claim 4, characterized in that, Along the width direction of the outer casing (110), the compressor (310) is located on the side of the condenser (330) away from the four-way reversing valve (320); Inside the compressor compartment and along the width of the outer casing (110), the second return gas line (3512) is located on the side of the compressor (310) away from the condenser (330); the refrigeration throttling line (352) and the defrost throttling line (353) are located on the side of the four-way reversing valve (320) away from the condenser (330), and the first return gas line (3511) is located on the side of the refrigeration throttling line (352) and the defrost throttling line (353) away from the condenser (330).

7. The refrigeration equipment according to claim 4, characterized in that, The top of the press chamber (120) is provided with a first communication port, a second communication port and a third communication port that communicate with the press chamber; Along the width direction of the outer casing (110), the first connection port is located on the side of the compressor (310) away from the condenser (330), the second connection port is located on the side of the four-way reversing valve (320) away from the condenser (330), and the third connection port is located on the side of the second connection port away from the four-way reversing valve (320). The fourth weld structure (3516) is located in the press chamber through the first connecting port, the sixth weld structure (3521), the seventh weld structure (3531) and the third weld structure (3515) are located in the press chamber through the second connecting port, and the second weld structure (3514) is located in the press chamber through the third connecting port.

8. The refrigeration equipment according to any one of claims 1 to 7, characterized in that, The diameter of the return gas circulation pipe (351) is larger than the diameter of the defrost throttling pipe (353), and the diameter of the defrost throttling pipe (353) is larger than the diameter of the refrigeration throttling pipe (352).

9. A refrigeration device, characterized in that, include: Outer shell (110); The inner box is located inside the outer shell (110), and the inner box is provided with a storage compartment; The press chamber (120) is located inside the outer shell (110), and the press chamber (120) is provided with a press chamber; The compressor (310) is located inside the compressor compartment; A four-way reversing valve (320) is located inside the compressor compartment, and the compressor (310) is connected to the four-way reversing valve (320); The condenser (330) is located inside the compressor compartment. The condenser (330) integrates one of the first check valve (360) and the second check valve (370). The condenser (330) is connected to the four-way reversing valve (320). Evaporator (340) is located inside the storage room; The return air assembly (350) integrates another of the first check valve (360) and the second check valve (370); During assembly, after the return gas pipe assembly (350) and the condenser (330) are assembled separately, the return gas pipe assembly (350) is connected to the compressor (310), the four-way reversing valve (320), the condenser (330) and the evaporator (340) respectively.

10. A refrigeration device, characterized in that, include: Outer shell (110); The inner box is located inside the outer shell (110), and the inner box is provided with a storage compartment; The press chamber (120) is located inside the outer shell (110), and the press chamber (120) is provided with a press chamber; The compressor (310) is located inside the compressor compartment; A four-way reversing valve (320) is located inside the compressor compartment, and the compressor (310) is connected to the four-way reversing valve (320); A condenser (330) is located inside the compressor compartment and is connected to a four-way reversing valve (320); Evaporator (340) is located inside the storage room; A return gas pipe assembly (350); one of the return gas pipe assembly (350) and the condenser (330) integrates a first check valve (360) and a second check valve (370); During assembly, after the return gas pipe assembly (350) and the condenser (330) are assembled separately, the return gas pipe assembly (350) is connected to the compressor (310), the four-way reversing valve (320), the condenser (330) and the evaporator (340) respectively.

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