Refrigeration equipment

Abstract

The utility model provides refrigeration equipment. The refrigerator comprises a refrigerator body, a storage chamber arranged in the refrigerator body, a door body used for opening and closing the storage chamber and a refrigerating system. The refrigerating system comprises a compressor, a condenser, an evaporator, a throttling element, a first refrigerant pipe and a second refrigerant pipe, wherein the compressor and the condenser are arranged on the side of the refrigerator body; the evaporator and the throttling element are arranged on the side of the door body; the first refrigerant pipe is used for conveying a refrigerant from the condenser to the throttling element; the first refrigerant pipe comprises a first pipe section located in the door body, the second refrigerant pipe comprises a second pipe section located in the door body, the outer wall of the first pipe section is connected with the outer wall of the second pipe section, the pipe diameter of the first pipe section is larger than or equal to the pipe diameter of the second pipe section, or the first pipe section is embedded in the second pipe section. By means of the arrangement, cold can be supplied to the door body, and meanwhile the refrigerant pipe between the evaporator and the compressor is prevented from generating condensation.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to a refrigeration device. Background Art

[0002] With the continuous improvement of living standards, refrigeration devices such as refrigerators have become essential household electrical appliances. Existing refrigeration devices generally include a box body, a storage room arranged inside the box body, and a door body for opening and closing the storage room. The refrigeration device also includes a refrigeration system, and the refrigeration system includes a compressor, a condenser, an evaporator, etc. connected by a refrigerant pipe. The evaporator is generally arranged on the back or bottom of the storage room to realize cooling for the storage room. However, this design has the following defects: it is impossible to cool the door body. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a refrigeration device. By arranging the evaporator and the throttling element on the door body side, arranging the condenser and the compressor on the box body side, and making the outer wall of the first refrigerant pipe between the evaporator and the compressor contact or be embedded inside the second refrigerant pipe between the condenser and the throttling element, it can realize cooling for the door body and avoid condensation on the refrigerant pipe between the evaporator and the compressor at the same time.

[0004] To achieve the above-mentioned utility model purpose, an embodiment of the utility model provides a refrigeration device. The refrigeration device includes a box body, a storage room arranged inside the box body, and a door body for opening and closing the storage room. Among them, the refrigeration device includes a refrigeration system. The refrigeration system includes a compressor and a condenser arranged on the box body side, an evaporator and a throttling element arranged on the door body side, a first refrigerant pipe for transporting the refrigerant from the condenser to the throttling element, and a second refrigerant pipe for transporting the refrigerant from the evaporator to the compressor. The first refrigerant pipe includes a first pipe section located inside the door body, the second refrigerant pipe includes a second pipe section located inside the door body, the outer wall of the first pipe section contacts the outer wall of the second pipe section and the diameter of the first pipe section is greater than or equal to the diameter of the second pipe section, or the first pipe section is nested inside the second pipe section.

[0005] As one embodiment of the utility model, the throttling element includes a capillary tube and a throttling tube connected in series downstream of the capillary tube.

[0006] As one embodiment of the utility model, the first pipe section and the second pipe section are rigid pipes made of metal.

[0007] As one embodiment of the utility model, the first pipe section is nested inside the second pipe section, and the diameter ratio of the second pipe section to the first pipe section is greater than or equal to 2.

[0008] As one embodiment of the present utility model, the first refrigerant pipe includes a third pipe section extending from the side of the cabinet to the side of the door body. If the outer walls of the first pipe section and the second pipe section are in contact, the diameter of the first pipe section is larger than that of the third pipe section. If the first pipe section is nested inside the second pipe section, the diameter of the first pipe section is smaller than that of the third pipe section.

[0009] As one embodiment of the present utility model, the first pipe section and the second pipe section extend along the same path, and the first pipe section and the second pipe section include multiple turning paths.

[0010] As one embodiment of the present utility model, the refrigeration device includes a mounting bracket embedded in the door insulation layer, and the first pipe section and the second pipe section are clamped to the mounting bracket.

[0011] As one embodiment of the present utility model, the first refrigerant pipe includes a third pipe section extending from the side of the cabinet to the side of the door body, and the second refrigerant pipe includes a fourth pipe section extending from the side of the door body to the side of the cabinet. The third pipe section and the fourth pipe section are flexible hoses.

[0012] As one embodiment of the present utility model, the refrigeration device includes a door hinge that pivotally connects the door body to the cabinet. The door body is formed with a hinge hole for cooperating with the hinge shaft of the door hinge, and both the third pipe section and the fourth pipe section pass through the hinge hole.

[0013] As one embodiment of the present utility model, the refrigeration device includes an ice-making chamber provided on the door body, and the evaporator is used to supply cold to the ice-making chamber.

[0014] Compared with the prior art, in the present utility model, by arranging the evaporator and the throttling element on the door body side, arranging the condenser and the compressor on the cabinet side, and making the outer walls of the first refrigerant pipe between the evaporator and the compressor and the second refrigerant pipe between the condenser and the throttling element in contact or embedding the first refrigerant pipe inside the second refrigerant pipe, the beneficial effects are as follows: It can realize cooling for the door body and prevent condensation from occurring on the refrigerant pipe between the evaporator and the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes in detail the specific embodiments of the present utility model with reference to the drawings, where:

[0016] Figure 1 is a schematic structural diagram of a refrigeration device according to an embodiment of the present utility model;

[0017] Figure 2 is a schematic diagram of a refrigeration system according to an embodiment of the present utility model;

[0018] Figure 3 is a schematic diagram of a door body, an evaporator and related structures in an embodiment of the present utility model;

[0019] Figure 4 is Figure 3 a schematic diagram of the evaporator and related structures in

[0020] Figure 5 is a schematic diagram of a refrigeration system in another embodiment of the present utility model;

[0021] Figure 6 is a schematic diagram of a door body, an evaporator and related structures in another embodiment of the present utility model;

[0022] Figure 7 is Figure 6 a schematic diagram of the evaporator and related structures in

[0023] Figure 8 is Figure 1 a schematic diagram of the structure at the rear side of the refrigeration device shown;

[0024] Figure 9 is a schematic diagram of the structure of an ice making chamber in an embodiment of the present utility model.

[0025] Wherein, 1, refrigeration device; 2, box body; 3, storage chamber; 4, door body; 5, refrigeration system; 6, compressor; 7, condenser; 8, evaporator; 9, throttling element; 10, first refrigerant pipe; 11, second refrigerant pipe; 12, first pipe section; 13, second pipe section; 14, capillary tube; 15, throttle pipe; 16, third pipe section; 17, mounting bracket; 18, fourth pipe section; 19, hinge hole; 20, ice making chamber; 21, mechanical chamber; 22, ice maker. Specific embodiments

[0026] The present patent will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, these embodiments do not limit the present patent, and any structural, methodical, or functional transformations made by those of ordinary skill in the art based on these embodiments are included within the scope of protection of the present patent.

[0027] Refer to Figures 1 to 4 or refer to Figure 1 、 Figures 5 to 7, an embodiment of the present application provides a refrigeration device 1. The refrigeration device 1 includes a box body 2, a storage chamber 3 disposed within the box body 2, and a door body 4 for opening and closing the storage chamber 3. The refrigeration device 1 further includes a refrigeration system 5, and the refrigeration system 5 includes a compressor 6 and a condenser 7 disposed on the side of the box body 2, an evaporator 8 and a throttling element 9 disposed on the side of the door body 4, a first refrigerant pipe 10 for delivering the refrigerant from the condenser 7 to the throttling element 9, and a second refrigerant pipe 11 for delivering the refrigerant from the evaporator 8 to the compressor 6. The first refrigerant pipe 10 includes a first pipe segment 12 located within the door body 4. The second refrigerant pipe 11 includes a second pipe segment 13 located within the door body 4. The storage chamber 3 can be a refrigerating chamber.

[0028] The throttling element 9 is an important component for realizing the normal operation and refrigeration effect adjustment of the refrigeration system 5. The throttling element 9 has the function of throttling and reducing pressure, and can throttle and reduce the pressure of the high-pressure liquid refrigerant from the condenser 7 to make it a low-temperature and low-pressure liquid refrigerant, creating conditions for evaporation and heat absorption in the evaporator 8.

[0029] During the process that the refrigerant in the refrigeration system 5 of the refrigeration device 1 starts from the compressor 6, passes through the condenser 7, the throttling element 9, the evaporator 8, and finally returns to the compressor 6, its temperature will undergo a series of changes. The following is a detailed description of the refrigerant temperature changes in each stage of this cycle.

[0030] From the compressor 6 to the condenser 7: In the compressor 6, the refrigerant is compressed into a high-temperature and high-pressure gas. The temperature in this stage is usually between 70°C and 90°C, and the specific temperature depends on the type of refrigerant and the degree of compression. From the condenser 7 to the throttling element 9: In the condenser 7, the high-temperature refrigerant gas releases heat to the external environment, gradually cools and condenses into a liquid state. During this process, the temperature of the refrigerant will decrease significantly. At the end of condensation, the temperature of the refrigerant may drop to close to or slightly higher than the ambient temperature, approximately between 30°C and 50°C. From the throttling element 9 to the evaporator 8: When passing through the throttling element 9, the pressure and temperature of the refrigerant liquid will drop significantly due to the resistance and small-diameter effect of the throttling element 9. The outlet temperature of the throttling element 9 may be very low, which depends on the refrigerant and the design of the refrigeration system 5, but is usually lower than 5°C, and may even be close to 0°C or lower to facilitate heat absorption in the evaporator 8. From the evaporator 8 to the compressor 6: In the evaporator 8, the low-temperature and low-pressure refrigerant absorbs the heat of the surrounding environment and thus evaporates into a gas. During this process, the temperature of the refrigerant will rise slightly, but still remains at a relatively low level, generally between -5°C and 10°C, because the refrigerant needs to absorb enough heat to maintain the evaporation state.

[0031] As can be seen from the above description, the refrigerant undergoes a change from high temperature and high pressure to low temperature and low pressure during the entire cycle. This thermodynamic cycle enables the refrigeration system 5 to effectively remove heat from the cooled space, achieving the purpose of cooling and preservation.

[0032] The refrigerant pipe is a pipe used to transport the refrigerant in the refrigeration system 5. Its main function is to transfer the refrigerant from the compressor 6 to components such as the condenser 7 and the evaporator 8, enabling the refrigerant to flow throughout the refrigeration cycle, thereby achieving heat exchange and the refrigeration effect.

[0033] Combined with the above description, it can be known that the temperature of the second refrigerant pipe 11 disposed between the evaporator 8 and the compressor 6 is relatively low, while the temperature of the first refrigerant pipe 10 disposed between the condenser 7 and the throttling element 9 is relatively high. Since the second refrigerant pipe 11 is used to transport the refrigerant from the evaporator 8 to the compressor 6, the second refrigerant pipe 11 needs to extend from the door body 4 side to the cabinet body 2 side. There may be a part where the heat insulation layer outside the second refrigerant pipe 11 is relatively thin, or there may be a part where there is no heat insulation layer outside the second refrigerant pipe 11 and it is directly exposed to the external air. Especially for the part of the second refrigerant pipe 11 located between the cabinet body 2 and the door body 4, due to the relatively low surface temperature of the second refrigerant pipe 11, condensation is likely to occur on the surface of the second refrigerant pipe 11.

[0034] Refer to Figures 2 to 4 , in an embodiment of the present application, the outer wall of the first pipe section 12 is connected to the outer wall of the second pipe section 13 and the diameter of the first pipe section 12 is greater than or equal to the diameter of the second pipe section 13. By connecting the outer wall of the first pipe section 12 to the outer wall of the second pipe section 13, heat exchange between the two pipes can be promoted. Since the diameter of the first pipe section 12 is greater than or equal to that of the second pipe section 13, this allows for a larger surface area contact, thereby improving the efficiency of heat exchange. The pipeline design in which the first pipe section 12 and the second pipe section 13 are in close contact also helps to reduce the risk of pipeline damage caused by vibration or external influences. At the same time, the larger diameter also means stronger structural strength, which is crucial for maintaining the long-term operation stability and reliability of the refrigeration system 5. Since the diameter of the first refrigerant pipe 10 is relatively thick, it can help the refrigerant flow more smoothly in the pipeline, reducing flow resistance and turbulence. The first pipe section 12 and the second pipe section 13 support each other, also providing higher structural stability, which all helps to reduce the noise level of the refrigeration system 5.

[0035] If the refrigerant does not absorb heat and evaporate sufficiently, it may enter the compressor 6 in a liquid state. Liquid refrigerant cannot be compressed, which may cause liquid hammer to components such as the piston and connecting rod of the compressor 6, resulting in component damage and shortening the service life of the compressor 6. After the refrigerant that has not been sufficiently heat-exchanged enters the compressor 6, it will also reduce the working efficiency of the entire refrigeration cycle, reduce the refrigerating capacity, and fail to achieve the expected refrigeration effect. Due to the reduction in refrigeration efficiency, the compressor 6 needs to operate for a longer time or at a higher power to maintain a certain refrigeration effect, resulting in increased energy consumption. Being in this abnormal working state for a long time will increase the failure risk of the entire refrigeration system 5, such as pipeline blockage, valve damage, etc. In this application, by increasing the heat-exchange area of the first refrigerant pipe 10 and the second refrigerant pipe 11, the heat-exchange efficiency is improved to ensure that the refrigerant from the evaporator 8 to the compressor 6 is sufficiently heat-exchanged, avoiding the above-mentioned adverse consequences caused by the insufficient heat-exchange of the refrigerant in the evaporator 8 before entering the compressor 6.

[0036] In the refrigeration device 1, heat-exchanging the parts of the first refrigerant pipe 10 and the second refrigerant pipe 11 located inside the door body 4 instead of outside the door body 4 can bring significant benefits, especially in reducing condensation. First, the inside of the door body 4 of the refrigeration device 1 is usually filled with heat-insulating materials, so the door body 4 generally has good heat-insulating performance. By heating the second refrigerant pipe 11 through the part of the first refrigerant pipe 10 located inside the door body 4, the heat-insulating materials of the door body 4 can be used to reduce heat loss and improve the heat-exchange efficiency. Second, condensation is likely to occur at the part where the second refrigerant pipe 11 is usually located between the door body 4 and the box body 2. By heating the second refrigerant pipe 11 inside the door body 4, it can be ensured that the refrigerant in the second refrigerant pipe 11 has been sufficiently heat-exchanged before flowing between the door body 4 and the box body 2, and its surface temperature has been effectively increased, thereby reducing the probability of condensation on its surface.

[0037] Refer to Figures 5 to 7 , in another embodiment of the present application, the first pipe section 12 is nested inside the second pipe section 13. In addition to being able to achieve the technical effects that the above-mentioned outer-wall connection type scheme can achieve, adopting the nested pipeline design, that is, nesting the first pipe section 12 inside the second pipe section 13, can also greatly increase the contact area between the two. This close physical contact enables heat to be transferred more effectively from the hotter first refrigerant pipe 10 to the colder second refrigerant pipe 11, thereby improving the heat-exchange efficiency. Moreover, this scheme maximizes the utilization of the thermal energy of the hot refrigerant from the condenser 7 and reduces the overall heat loss of the system. The nested pipeline design makes the overall space occupied by the pipeline smaller, providing more flexibility for the layout of other system components. Since the first pipe section 12 and the second pipe section 13 support each other, it provides higher structural stability, which helps to reduce the noise level of the refrigeration system 5.

[0038] Since the second refrigerant pipe 11 usually needs to have sufficient thickness to ensure efficient and stable gas return to the compressor 6. The nested pipe design of this solution also provides additional benefits for ensuring the thickness of the second pipe section 13, which helps to maintain the efficient operation of the compressor 6.

[0039] Referring to Figures 2 to 4 , or referring to Figures 5 to 7 , in an embodiment of the present application, the throttling element 9 includes a capillary tube 14 and a throttle pipe 15 connected in series downstream of the capillary tube 14. Setting the throttle pipe 15 downstream of the capillary tube 14 can achieve more precise flow rate and pressure control through multi-stage throttling. The throttle pipe 15 can include a specific variable diameter design or an orifice plate to increase the flow resistance and generate the necessary throttling effect, providing an additional pressure drop on the basis of the capillary tube 14.

[0040] The capillary tube 14 can provide an initial pressure drop and control the flow rate through long-distance frictional losses, which helps to reduce the pressure of the high-pressure liquid refrigerant to a medium level. The throttle pipe 15 is located downstream and can further reduce the pressure to achieve more refined flow control, ensuring that the refrigerant reaches the required low-pressure state when entering the evaporator 8. By setting the throttle pipe 15 downstream of the capillary tube 14, the required length of the capillary tube 14 can be reduced, reducing the occupation of the space of the door body 4.

[0041] The capillary tube 14 can be made of copper or aluminum. The flexibility of these materials allows the capillary tube 14 to be bent without being easily broken. The throttle pipe 15 can use harder materials, such as stainless steel or hardened copper. These materials can withstand higher pressures and provide the necessary rigidity to prevent deformation under high-pressure conditions. The hard materials can also provide a more stable throttling effect structurally, enabling the throttle pipe 15 to achieve a significant pressure drop within a short distance and reducing the occupation of the space of the door body 4.

[0042] In other embodiments of the present application, the throttling element 9 can only include the capillary tube 14 or an expansion valve.

[0043] Referring to Figure 8 , in an embodiment of the present application, the refrigeration device 1 can include a mechanical room 21 provided on the side of the box body 2. The mechanical room 21 can be provided at the bottom of the box body 2. The compressor 6 and the condenser 7 are provided in the mechanical room 21.

[0044] Referring to Figure 9, in an embodiment of the present application, the refrigeration device 1 includes an ice-making chamber 20 provided on the door body 4, and the evaporator 8 is used to supply cold to the ice-making chamber 20. An ice maker 22 and an ice storage box located below the ice maker 22 may be provided in the ice-making chamber 20. The ice maker 22 may include an ice-making tray. The refrigeration device 1 may further include a water supply device for supplying water to the ice-making tray. When ice-making is required, water can be supplied to the ice-making tray through the water supply device, and the refrigeration system 5 can be started to supply cold to the ice-making chamber 20 through the evaporator 8, so that the water in the ice-making tray freezes into ice cubes. The evaporator 8 may be arranged to be in contact with the wall surface of the ice-making tray, so that the evaporator 8 supplies cold to the ice-making tray in a direct cooling manner, improving the ice-making efficiency.

[0045] Refer to Figures 2 to 4 , or refer to Figures 5 to 7 , in an embodiment of the present application, the first pipe section 12 and the second pipe section 13 are rigid pipes made of metal. Specifically, the material of the rigid pipe can be copper or steel. The use of rigid pipes for the first pipe section 12 and the second pipe section 13 can improve the structural stability, is not easily deformed, can maintain its shape in a complex installation environment, ensure the stable delivery of the refrigerant, the sealing effect of the rigid pipe is relatively more reliable, can reduce the risk of refrigerant leakage, the rigid pipe has strong durability, has a long service life, can withstand long-term use and a certain degree of external pressure, and has less vibration when impacted by the refrigerant flow, reducing noise.

[0046] Refer to Figures 5 to 7 , in an embodiment of the present application, the first pipe section 12 is nested within the second pipe section 13, and the diameter ratio of the second pipe section 13 to the first pipe section 12 is greater than or equal to 2. When the diameter of the second pipe section 13 is significantly larger than that of the first pipe section 12, it provides a large heat contact area for the first pipe section 12. Such a configuration allows heat to be transferred from the first refrigerant pipe 10 to the second refrigerant pipe 11 more effectively, thereby improving the heat exchange efficiency. Preferably, the diameter of the first pipe section 12 is 3 mm and the diameter of the second pipe section 13 is 6 mm.

[0047] Refer to Figures 2 to 4 , or in an embodiment of the present application, the first refrigerant pipe 10 includes a third pipe section 16 extending from the side of the cabinet 2 to the side of the door body 4. If the design scheme of connecting the outer walls of the first pipe section 12 and the second pipe section 13 is adopted, the diameter of the first pipe section 12 is set to be larger than the diameter of the third pipe section 16. The larger diameter of the first pipe section 12 enables the improvement of the heat exchange efficiency with the second pipe section 13. This design not only optimizes the use of space but also improves the overall layout flexibility of the refrigeration system 5.

[0048] Refer to Figures 5 to 7, in an embodiment of the present application, the first refrigerant pipe 10 includes a third pipe section 16 extending from the side of the box body 2 to the side of the door body 4. If the design scheme of nesting the first pipe section 12 inside the second pipe section 13 is adopted, the diameter of the first pipe section 12 is set to be smaller than that of the third pipe section 16. The smaller diameter of the first pipe section 12 makes the nested part more compact, while the larger diameter of the third pipe section 16 provides more space for the refrigerant flow. This design not only optimizes the use of space but also improves the overall layout flexibility of the refrigeration system 5.

[0049] Refer to Figure 3 and Figure 4 , or refer to Figure 6 and Figure 7 , in an embodiment of the present application, the first pipe section 12 and the second pipe section 13 extend along the same path, and the first pipe section 12 and the second pipe section 13 include multiple turning paths. By extending along the same path and setting multiple turning paths, the first pipe section 12 and the second pipe section 13 can have a larger contact area. The longer path and the turning design increase the heat exchange opportunity between the two pipe sections, improve the preheating and precooling effects of the refrigerant, and thus enhance the heat exchange efficiency of the overall system. In addition, the design of multiple turning paths enables the pipeline to achieve a longer extension within a limited space, which helps to optimize the utilization of the internal space of the equipment.

[0050] Refer to Figure 3 and Figure 4 , in an embodiment of the present application, when the first pipe section 12 and the second pipe section 13 exchange heat by means of the outer walls being in contact, the first pipe section 12 and the second pipe section 13 can be arranged in parallel. The first pipe section 12 and the second pipe section 13 can be connected by welding to ensure the stability of the connection and the heat transfer effect. After welding the first pipe section 12 and the second pipe section 13, the first pipe section 12 and the second pipe section 13 can be bent multiple times at different positions, thereby realizing the design of multiple turning paths.

[0051] Refer to Figure 6 and Figure 7 , in an embodiment of the present application, when the first pipe section 12 and the second pipe section 13 exchange heat in a nested manner, the straight first pipe section 12 can be first nested into the straight second pipe section 13, and then the nested first pipe section 12 and the second pipe section 13 are bent, and the first pipe section 12 and the second pipe section 13 are bent multiple times at different positions, thereby realizing the design of multiple turning paths.

[0052] Refer to Figure 3 or Figure 6, in an embodiment of the present application, the refrigeration device 1 includes a mounting bracket 17 embedded in the insulation layer of the door body 4, and the first pipe section 12 and the second pipe section 13 are clamped to the mounting bracket 17. Through the mounting bracket 17, the stable setting of the first refrigerant pipe 10 and the second refrigerant pipe 11 inside the door body 4 can be realized.

[0053] Refer to Figures 2 to 4 , or refer to Figures 5 to 7 , in an embodiment of the present application, the first refrigerant pipe 10 includes a third pipe section 16 extending from the side of the cabinet 2 to the side of the door body 4. The third pipe section 16 is a flexible pipe. The second refrigerant pipe 11 includes a fourth pipe section 18 extending from the side of the door body 4 to the side of the cabinet 2. The fourth pipe section 18 is a flexible pipe.

[0054] Setting the third pipe section 16 and the fourth pipe section 18 as flexible pipes has the following advantages: Flexible pipes have better flexibility, can adapt to the movement and deformation generated when the door body 4 is opened and closed, reduce the risk of damage to the pipes due to repeated movement, and during the opening and closing process of the door body 4, the flexible pipes can effectively buffer and absorb the possible stress, avoid stress concentration at specific parts of the pipes, extend the service life of the refrigerant pipes, the installation of flexible pipes is relatively simple, facilitating layout and connection in narrow or complex spaces, and during maintenance, the disassembly and replacement of flexible pipes are also easier to operate, and can absorb and reduce the vibration transmission generated during the operation of the refrigeration system 5, thereby reducing the resulting noise.

[0055] In an embodiment of the present application, the material of the flexible pipe can be Teflon. Teflon is scientifically named polytetrafluoroethylene (abbreviated as PTFE), which is a high-performance fluoropolymer material with excellent corrosion resistance, capable of resisting the erosion of most chemical substances, including strong acids, strong bases, and organic solvents. Teflon also has an extremely low coefficient of friction and has self-lubricity, enabling it to reduce friction and wear in various applications. Teflon also has high-temperature resistance and can maintain stable performance within a wide temperature range, usually usable between -190°C and 260°C. In other embodiments of the present application, the material of the flexible pipe can also be rubber or nylon, etc.

[0056] The first refrigerant pipe 10 and the second refrigerant pipe 11 adopt a form combining flexible pipes and rigid pipes. Flexible pipes are used at the connection between the door body 4 and the cabinet 2 where flexible connection is required, and rigid pipes are used at fixed positions inside the door body 4 or the cabinet 2, which can more conveniently adapt to complex layouts, ensure the stability and neatness of the refrigerant pipes, and facilitate the installation and maintenance of the refrigerant pipes.

[0057] Refer to Figure 3 Or Figure 6, in an embodiment of the present application, the refrigeration device 1 includes a door hinge that pivotally connects the door body 4 to the cabinet 2. The door body 4 is formed with a hinge hole 19 for mating with the hinge shaft of the door hinge, and both the third pipe section 16 and the fourth pipe section 18 pass through the hinge hole 19. The hinge shaft may be formed with a passage that mates with the hinge hole 19 and through which the first refrigerant pipe 10 and the second refrigerant pipe 11 pass.

[0058] The structure at the door hinge is relatively stable. When the door body 4 is opened and closed, the movement amplitude at the door hinge is smaller. Forming a passage through which the first refrigerant pipe 10 and the second refrigerant pipe 11 pass at the door hinge can achieve an orderly arrangement of the refrigerant pipes, which is beneficial to the smooth flow of the refrigerant, reduces damage to the refrigerant pipes caused by the opening and closing of the door body 4, and can also hide the refrigerant pipes, making the appearance of the refrigeration device 1 more tidy and beautiful.

[0059] The refrigeration device 1 of the present application can be a refrigerator, or a freezer, a display cabinet, etc.

[0060] In summary, the refrigeration device 1 of the present application can solve the problem of being unable to cool the door body 4.

[0061] Adopting the technical solution of the present application can achieve cooling of the door body 4. By making the outer wall of the first refrigerant pipe 10 between the evaporator 8 and the compressor 6 contact or embed inside the second refrigerant pipe 11 between the condenser 7 and the throttling element 9, the first refrigerant pipe 10 can be used to provide heat for the second refrigerant pipe 11, reduce the temperature difference between the second refrigerant pipe 11 and its surrounding environment, prevent condensation on the surface of the refrigerant pipe between the evaporator 8 and the compressor 6, and can also optimize the extension path of the refrigerant pipe. While ensuring heat supply to the first refrigerant pipe 10, it reduces the occupation of the space of the cabinet 2 or the door body 4, and is also convenient for the installation of the refrigerant pipe. In addition, it can effectively increase the heat exchange area between the first refrigerant pipe 10 and the second refrigerant pipe 11, improve the heat exchange efficiency, ensure sufficient heat exchange of the refrigerant from the evaporator 8 to the compressor 6, and avoid the above-mentioned adverse consequences caused by insufficient heat exchange of the refrigerant in the evaporator 8 before entering the compressor 6.

[0062] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0063] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of this patent. They are not used to limit the protection scope of this patent. Any equivalent embodiments or changes made without departing from the technical spirit of this patent should be included in the protection scope of this patent.

Claims

1. A refrigeration device (1), the refrigeration device (1) comprising a box body (2), a storage chamber (3) disposed within the box body (2), and a door body (4) for opening and closing the storage chamber (3), characterized in that, The refrigeration device (1) includes a refrigeration system (5), and the refrigeration system (5) includes a compressor (6) and a condenser (7) disposed on the side of the box body (2), an evaporator (8) and a throttling element (9) disposed on the side of the door body (4), a first refrigerant pipe (10) for delivering the refrigerant from the condenser (7) to the throttling element (9), and a second refrigerant pipe (11) for delivering the refrigerant from the evaporator (8) to the compressor (6). The first refrigerant pipe (10) includes a first pipe segment (12) located within the door body (4), the second refrigerant pipe (11) includes a second pipe segment (13) located within the door body (4), the outer wall of the first pipe segment (12) is in contact with the outer wall of the second pipe segment (13) and the diameter of the first pipe segment (12) is greater than or equal to the diameter of the second pipe segment (13), or the first pipe segment (12) is nested within the second pipe segment (13).

2. The refrigeration device (1) according to claim 1, characterized in that, The throttling element (9) includes a capillary tube (14) and a throttling pipe (15) connected in series downstream of the capillary tube (14).

3. The refrigeration device (1) according to claim 1, characterized in that, The first pipe segment (12) and the second pipe segment (13) are rigid pipes made of metal.

4. The refrigeration device (1) according to claim 1, characterized in that, The first pipe segment (12) is nested within the second pipe segment (13), and the ratio of the diameter of the second pipe segment (13) to the diameter of the first pipe segment (12) is greater than or equal to 2.

5. The refrigeration device (1) according to claim 1, characterized in that, The first refrigerant pipe (10) includes a third pipe segment (16) extending from the side of the box body (2) to the side of the door body (4). If the outer walls of the first pipe segment (12) and the second pipe segment (13) are in contact, the diameter of the first pipe segment (12) is greater than the diameter of the third pipe segment (16). If the first pipe segment (12) is nested within the second pipe segment (13), the diameter of the first pipe segment (12) is less than the diameter of the third pipe segment (16).

6. The refrigeration device (1) according to claim 1, characterized in that, The first pipe segment (12) and the second pipe segment (13) extend along the same path, and the first pipe segment (12) and the second pipe segment (13) include multiple turning paths.

7. The refrigeration device (1) according to claim 1, characterized in that, The refrigeration device (1) includes a mounting bracket (17) embedded in the insulation layer of the door body (4), and the first pipe segment (12) and the second pipe segment (13) are clamped to the mounting bracket (17).

8. The refrigeration device (1) according to claim 1, characterized in that, The first refrigerant pipe (10) includes a third pipe segment (16) extending from the side of the box body (2) to the side of the door body (4), the second refrigerant pipe (11) includes a fourth pipe segment (18) extending from the side of the door body (4) to the side of the box body (2), and the third pipe segment (16) and the fourth pipe segment (18) are flexible pipes.

9. The refrigeration device (1) according to claim 8, characterized in that, The refrigeration device (1) includes a door hinge that pivotally connects the door body (4) to the box body (2). The door body (4) is formed with a hinge hole (19) for mating with the hinge shaft of the door hinge, and both the third pipe segment (16) and the fourth pipe segment (18) pass through the hinge hole (19).

10. The refrigeration device (1) according to claim 1, characterized in that, The refrigeration device (1) includes an ice-making chamber (20) disposed on the door body (4), and the evaporator (8) is used to supply cold to the ice-making chamber (20).

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