Refrigeration apparatus

Abstract

A refrigeration apparatus, comprising a refrigeration system and a mounting bracket group. The refrigeration system comprises a heat exchange tube group, wherein the heat exchange tube group is arranged in multiple layers in a thickness direction in at least a partial region. The mounting bracket group forms a plurality of mounting positions, which comprise multiple groups arranged at intervals in the thickness direction, each group of the mounting positions being configured to fix one layer of the heat exchange tube group.

Description

Refrigeration equipment

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese patent applications No. 2024117501400 and 202411750470X, filed on November 29, 2024, and Chinese patent application No. 2025103305211, filed on March 19, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of refrigeration technology, and more specifically, to a refrigeration device and a method for assembling the refrigeration device. Background Technology

[0004] In related technologies, refrigeration equipment includes an inner liner and an outer shell, and a refrigeration system is used to cool the compartment formed by the inner liner. Since the refrigeration system includes multiple refrigeration components such as an evaporator, heat exchanger, condenser, and compressor, these components are connected by heat exchange tube assemblies filled with refrigerant, allowing the refrigerant to circulate among the components to achieve a cooling effect.

[0005] The spacing between different heat exchange tubes, as well as the fixing and installation of the heat exchange tubes themselves, play a crucial role in the stable operation of refrigeration equipment. However, due to the large length-to-diameter ratio of some heat exchange tubes, it is difficult to maintain the preset state stably, resulting in different performance of different prototypes during mass production, which requires improvement. Summary of the Invention

[0006] Figure 1 is a schematic diagram of the structure of a refrigeration device provided in an embodiment of this application;

[0007] Figure 2 is a second structural schematic diagram of the refrigeration equipment provided in the embodiment of this application;

[0008] Figure 3 is a third structural schematic diagram of the refrigeration equipment provided in the embodiment of this application;

[0009] Figure 4 is a fourth structural schematic diagram of the refrigeration equipment provided in the embodiment of this application;

[0010] Figure 5 is a fifth structural schematic diagram of the refrigeration equipment provided in the embodiment of this application;

[0011] Figure 6 is a sixth structural schematic diagram of the refrigeration equipment provided in the embodiment of this application;

[0012] Figure 7 is the seventh structural schematic diagram of the refrigeration equipment provided in the embodiment of this application;

[0013] Figure 8 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0014] Figure 9 is a structural schematic diagram of the refrigeration equipment provided in the embodiment of this application;

[0015] Figure 10 is a structural schematic diagram of the refrigeration equipment provided in the embodiment of this application;

[0016] Figure 11 is an eleventh schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0017] Figure 12 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0018] Figure 13 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application.

[0019] Figure 14 is a fourteenth schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0020] Figure 15 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0021] Figure 16 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0022] Figure 17 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0023] Figure 18 is the eighteenth structural schematic diagram of the refrigeration equipment provided in the embodiment of this application;

[0024] Figure 19 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0025] Figure 20 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0026] Figure 21 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0027] Figure 22 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0028] Figure 23 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application;

[0029] Figure 24 is a schematic diagram of one of the refrigeration systems provided in an embodiment of this application;

[0030] Figure 25 is a second schematic diagram of the refrigeration system provided in an embodiment of this application;

[0031] Figure 26 is a third schematic diagram of the refrigeration system provided in an embodiment of this application;

[0032] Figure 27 is a fourth structural schematic diagram of the refrigeration system provided in the embodiment of this application;

[0033] Figure 28 is a fifth schematic diagram of the refrigeration system provided in the embodiment of this application;

[0034] Figure 29 is a sixth schematic diagram of the refrigeration system provided in the embodiment of this application;

[0035] Figure 30 is the seventh structural schematic diagram of the refrigeration system provided in the embodiment of this application;

[0036] Figure 31 is the eighth structural schematic diagram of the refrigeration system provided in the embodiment of this application;

[0037] Figure 32 is a ninth structural schematic diagram of the refrigeration system provided in an embodiment of this application;

[0038] Figure 33 is a schematic diagram of the refrigeration system provided in an embodiment of this application;

[0039] Figure 34 is an eleventh schematic diagram of the refrigeration system provided in an embodiment of this application;

[0040] Figure 35 is the twenty-fourth structural schematic diagram of the refrigeration equipment provided in the embodiment of this application;

[0041] Figure 36 is the twenty-fifth structural schematic diagram of the refrigeration equipment provided in the embodiment of this application;

[0042] Figure 37 is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of this application, number twenty-six.

[0043] Figure 38 is the twenty-seventh structural schematic diagram of the refrigeration equipment provided in the embodiments of this application. Attached Figure Description

[0044] Refrigeration equipment 100, inner liner 1, open end 11; Refrigeration system 2, heat exchange tube assembly 21, serpentine tube section 211, tube section 212, connecting section 213, capillary tube 214, transfer tube 215, heat exchange pipeline 216, first serpentine section 2161, second serpentine section 2162; Evaporator 22, compressor 23, condenser 24, heat exchanger 25, first heat exchange tube 251, first contact surface 2511, second heat exchange tube 252, second contact surface 2521, second contact surface 2522, second arc section 2523, first straight section 2524, second straight section 2525, third straight section 2526, return gas assembly 26, first path 261, second path 262; Mounting base 31, first weight-reducing groove 311, first through hole 312, clamping member 32, gripper 321, mounting position 322, flange 323, connecting part 33, slot 331, first reinforcing part 34, second reinforcing part 35; first mounting bracket 36, second mounting bracket 37, first group 371, second group 372, first support part 373, third mounting bracket 38; fixing bracket 4, fixing base 41, fixing member 42, bending part 421, fixing position 422, reinforcing member 43, second weight-reducing groove 44, snap-fit ​​part 45, second through hole 46; bearing bracket 5, winding base 51, edge 511, through hole 5111, annular bearing position 512, reinforcing rib 513, spoke 52, third weight-reducing groove 521; outer shell 6, cabin 601, insulation layer 7. Detailed Implementation

[0045] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0046] The following description, with reference to Figures 1-38, describes a refrigeration device 100 and a method for assembling the refrigeration device 100 according to an embodiment of this application.

[0047] It should be noted that the refrigeration equipment 100 in this embodiment can be understood as a refrigeration and storage device in a broad sense, including but not limited to refrigerators, freezers, display cases, beverage cabinets, wine cabinets, refrigerated display cases, and refrigerated vending machines. The refrigeration equipment 100 has a variety of structural forms and a wide range of applications.

[0048] The refrigeration equipment 100 includes a cabinet and a door. The cabinet includes an outer shell 6, an inner liner 1, and an insulation layer 7 located between the outer shell 6 and the inner liner 1. The outer shell 6 covers the inner liner 1 and provides protection. The insulation layer 7 can be a foam layer, which provides insulation and cushioning. A machine compartment 601 is formed between the outer shell 6 and the inner liner 1. The machine compartment 601 is used to house the compressor 23 and circuit breakers, etc.

[0049] As shown in Figures 1-3, the refrigeration equipment 100 of this application embodiment includes: a refrigeration system 2 and a mounting bracket assembly.

[0050] The refrigeration system 2 typically includes multiple refrigeration components such as a compressor 23, a condenser 24, a throttling device, and an evaporator 22. These multiple refrigeration components are connected by a heat exchange tube assembly 21, which is filled with refrigerant to circulate among the multiple refrigeration components and achieve a refrigeration effect.

[0051] In this embodiment, the heat exchange tube assembly 21 is arranged in a multi-layer structure along the thickness direction of the inner liner 1 in at least a portion of the area. This arrangement can fully utilize the space between the inner liner 1 and the outer shell 6, increase the heat exchange area, improve cooling efficiency, and reduce the overall size of the unit. Furthermore, the multi-layer structure design allows for adjustment of the number and layout of heat exchange tubes in each layer according to actual needs, achieving a more uniform cooling effect.

[0052] The mounting bracket assembly can be installed on the housing of the refrigeration equipment 100. For example, the mounting bracket assembly can be installed on the inner liner 1, the outer shell 6, or clamped between the inner liner 1 and the outer shell 6. The specific configuration can be determined according to the installation process.

[0053] The mounting bracket assembly forms multiple mounting positions 322, which include multiple sets arranged at intervals along the thickness direction, each set being used to fix a layer of heat exchange tube assembly 21.

[0054] The mounting bracket assembly is used to fix the heat exchange tube assembly 21, improve the stability of the heat exchange tube assembly 21 when installed on the outside of the inner tank 1, and improve the stability of the operation of the refrigeration system 2.

[0055] As shown in Figure 1, multiple mounting positions 322 are formed on the mounting bracket assembly. These mounting positions 322 include multiple sets arranged at intervals along the thickness direction of the inner liner 1, each set is used to fix one layer of heat exchange tube assembly 21, and multiple sets of mounting positions 322 are used to fix the multi-layer heat exchange tube assembly 21 arranged along the thickness direction.

[0056] The mounting bracket assembly may include a variety of mounting brackets with different structures, and one or a combination of different mounting brackets may be used to fix the heat exchange tube assembly 21 in different directions.

[0057] For example, the multi-layer heat exchange tube group 21 distributed along the thickness direction can be supported and fixed, or multiple tube segments of the same layer heat exchange tube group 21 distributed laterally can be supported and fixed, or multiple tube segments of the same layer heat exchange tube group 21 distributed vertically can be supported and fixed.

[0058] According to the refrigeration equipment 100 provided in this application, by setting up the mounting bracket assembly, the multi-layer heat exchange tube assembly 21 distributed along the thickness direction can be fixed, thereby reducing the shaking or deformation of the multi-layer heat exchange tube assembly 21 distributed along the thickness direction during operation. This reduces the variation in the spacing of the multi-layer heat exchange tube assembly 21 along the thickness direction, improves the stability of the spacing between each layer of heat exchange tubes, and achieves a more uniform cooling effect. At the same time, since the mounting bracket assembly can be mass-produced, by setting up the mounting bracket assembly, the heat exchange tube assembly 21 in multiple mass-produced refrigeration equipment 100 of the same model can be located in a predetermined position, thereby improving the consistency of performance during prototype mass production, increasing the pass rate of prototype cooling speed and depth, and thus improving the stability of the refrigeration system 2.

[0059] In some embodiments, the refrigeration equipment 100 further includes a housing, which forms a compartment, and the refrigeration system 2 and the mounting bracket assembly are both installed in the housing. The housing includes an inner liner 1 and an outer shell 6, the inner liner 1 forming the compartment, and the inner liner 1 being disposed within the outer shell 6.

[0060] The inner liner 1 of the refrigeration equipment 100 is usually made of cold-resistant materials such as metal or plastic. The shape and size of the inner liner 1 are designed according to the purpose and capacity of the refrigeration equipment 100 to meet the needs of storing items.

[0061] The mounting locations for the mounting bracket assembly include at least the following three types:

[0062] Firstly, both the mounting bracket assembly and the heat exchange tube assembly 21 are installed in the inner liner.

[0063] As shown in Figure 1, the mounting bracket assembly can be connected to the inner liner 1 by snap-fit, welding, abutment, screwing, or plugging.

[0064] In some embodiments, as shown in Figures 20-23, the inner liner 1 has an opening 11, and the mounting bracket assembly is connected to the opening 11.

[0065] The mounting bracket assembly can be connected to the edge of the opening 11; or, a connector is provided at the position of the opening 11, and the mounting bracket assembly is connected to the connector.

[0066] The refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, and the mounting bracket assembly can be connected to the upper end of the inner liner 1. When the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, and the mounting bracket assembly can be connected to the front end of the inner liner 1.

[0067] In some embodiments, as shown in Figures 20-23, the inner liner 1 has an opening 11, and a first connector is provided on the side wall of the inner liner 1 away from the opening 11. The mounting bracket assembly is connected to the first connector of the opening 11.

[0068] The mounting bracket assembly can be connected to the first connector by one or more of the following methods: snap-fit, welding, abutment, screwing, and plugging. For example, the first connector can be an extension or a retaining ring, and the mounting bracket assembly snaps into the first connector.

[0069] The refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, the first connecting member is located at the bottom of the inner liner 1, and the mounting bracket assembly can be connected to the first connecting member at the bottom of the inner liner 1. When the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, the first connecting member is located at the rear end of the inner liner 1, and the mounting bracket assembly can be connected to the first connecting member at the rear end of the inner liner 1.

[0070] In the assembly process of this embodiment, the mounting bracket assembly is first assembled onto the heat exchange tube assembly 21, then the heat exchange tube assembly 21 with the mounting bracket assembly is assembled onto the inner liner 1, then the inner liner 1 with the heat exchange tube assembly 21 and the mounting bracket assembly is assembled onto the outer shell 6, and then foaming is performed.

[0071] Secondly, both the mounting bracket assembly and the heat exchange tube assembly 21 are installed on the outer casing 6.

[0072] The mounting bracket assembly can be connected to the housing 6 via snap-fit, welding, abutment, or plug-in connection.

[0073] In some embodiments, the mounting bracket assembly is connected to the side plate of the housing 6.

[0074] The refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the mounting bracket assembly is connected to any one or more of the four side plates of the outer casing 6 (front, back, left, and right). When the refrigeration equipment 100 is vertical, the mounting bracket assembly is connected to any one or more of the four side plates of the outer casing 6 (upper, lower, left, and right).

[0075] In some embodiments, as shown in Figures 20-23, the inner liner 1 has an opening 11, and the mounting bracket assembly can be connected to the end of the side plate of the outer shell 6 on the same side as the opening 11; or, the mounting bracket assembly can also be connected to the end of the side plate of the outer shell 6 away from the opening 11.

[0076] The mounting bracket assembly can be connected to the end of the housing on the same side as the opening 11; or, the end of the housing on the same side as the opening 11 is provided with a connector, and the mounting bracket assembly can be connected to the connector.

[0077] The refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, and the mounting bracket assembly can be connected to the upper end of the outer shell 6. When the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, and the mounting bracket assembly can be connected to the front end of the outer shell 6.

[0078] In some embodiments, the inner liner 1 has an opening 11, and a mounting bracket assembly is connected to the outer shell 6 on a plate opposite to the opening 11.

[0079] The refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, and the mounting bracket is connected to the bottom plate of the outer shell 6. When the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, and the mounting bracket is connected to the rear plate of the outer shell 6.

[0080] In some embodiments, as shown in Figures 20-23, the inner liner 1 has an opening 11, and the outer shell 6 is provided with a second connector on the bottom plate opposite to the opening 11, and the mounting bracket assembly is connected to the second connector.

[0081] The second connector is located on the bottom plate of the outer casing 6, away from the opening 11.

[0082] The mounting bracket assembly can be connected to the second connector by one or more of the following methods: snap-fit, welding, abutment, screwing, and plugging. For example, the second connector can be an extension or a retaining ring, and the mounting bracket assembly snaps into the second connector.

[0083] The refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, the second connector is set on the bottom plate of the outer shell 6, and the mounting bracket assembly can be connected to the second connector of the outer shell 6. When the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, the second connector can be set on the rear plate of the outer shell 6, and the mounting bracket assembly can be connected to the second connector of the outer shell 6.

[0084] In the assembly process of this embodiment, the heat exchange tube assembly 21 is first assembled onto the outer shell 6, then the mounting bracket assembly is assembled onto the heat exchange tube assembly 21, then the inner liner 1 is assembled into the outer shell 6 which is equipped with the heat exchange tube assembly 21 and the mounting bracket assembly, and then foaming is performed.

[0085] Third, both the mounting bracket assembly and the heat exchange tube assembly 21 are located between the outer shell 6 and the inner liner 1.

[0086] In some embodiments, the mounting bracket assembly may abut against the outer shell 6, or the mounting bracket assembly may abut against the inner liner 1; or the mounting bracket assembly may abut against both the outer shell 6 and the inner liner 1.

[0087] The heat exchange tube assembly 21 is spaced apart from the outer shell 6 to increase safety and reduce heat loss.

[0088] In the assembly process of this embodiment, the inner liner 1 is first assembled into the outer shell 6, and then the heat exchange tube assembly 21 with the mounting bracket assembly is assembled between the outer shell 6 and the inner liner 1, and then foaming is performed.

[0089] During installation, the inner liner 1 can be installed into the outer shell 6 first, and then the heat exchange tube assembly and mounting bracket assembly can be vertically lowered into the gap between the inner liner 1 and the outer shell 6 to complete the welding. Then the cabinet opening can be installed, and then foaming can be performed.

[0090] In some embodiments, as shown in Figures 20-23, the inner liner 1 has an opening 11, through which the heat exchange tube assembly 21 with the mounting bracket assembly can be assembled between the outer shell 6 and the inner liner 1 from the direction of the opening 11.

[0091] The refrigeration equipment 100 can be horizontal or vertical. As shown in Figure 20, when the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, and the heat exchange tube assembly 21 with the mounting bracket can be inserted from top to bottom between the inner liner 1 and the outer shell 6. As shown in Figure 22, when the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, and the heat exchange tube assembly 21 with the mounting bracket can be inserted from front to back between the inner liner 1 and the outer shell 6.

[0092] In some embodiments, the inner liner 1 has an opening 11, and a heat exchange tube assembly 21 with a mounting bracket assembly can be assembled between the outer shell 6 and the inner liner 1 from a direction away from the opening 11.

[0093] The refrigeration equipment 100 can be horizontal or vertical. As shown in Figure 21, when the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, and the heat exchange tube assembly 21 with the mounting bracket can be inserted from bottom to top between the inner liner 1 and the outer shell 6. As shown in Figure 23, when the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, and the heat exchange tube assembly 21 with the mounting bracket can be inserted from back to front between the inner liner 1 and the outer shell 6.

[0094] In some embodiments, the outer shell 6 includes a side wall and a plate body facing away from the inner liner opening 11. First, the side wall of the outer shell 6 is assembled with the inner liner 1. Then, the heat exchange tube assembly 21 with the mounting bracket assembly is assembled between the outer shell 6 and the inner liner 1. Finally, the plate body facing away from the inner liner opening 11 is connected to the side wall of the outer shell 6.

[0095] As shown in Figure 1, in some embodiments, the heat exchange tube assembly 21 includes, in at least a portion of the region, a serpentine tube segment 211 extending along a first direction, wherein the first direction is perpendicular to the thickness direction and is the extension direction of the serpentine tube segment 211 after multiple bends, and multiple tube segments of the serpentine tube segment 211 are distributed in the first direction.

[0096] In this embodiment, the heat exchange tube assembly 21 effectively increases the heat exchange area by setting serpentine tube segments 211, thereby improving the refrigeration efficiency; and the distribution of serpentine tube segments 211 can extend the arrangement area of ​​the heat exchange tube assembly 21, avoiding local overheating or overcooling; and the design of serpentine tube segments 211 can arrange more heat exchange tubes in a limited space, improving the space utilization and refrigeration effect of the refrigeration equipment 100.

[0097] As shown in Figure 1, the mounting bracket assembly extends along the first direction, and the mounting bracket assembly extends along the first direction of the serpentine pipe section 211 to firmly support the entire serpentine pipe section 211 and reduce the shaking and deformation of multiple pipe sections in the serpentine pipe section 211.

[0098] As shown in Figure 2, the mounting bracket group includes at least one mounting bracket, and multiple mounting positions 322 of the same group on the same mounting bracket are distributed along the first direction, and multiple pipe segments 211 of the serpentine pipe segment are distributed along the first direction for positioning.

[0099] In this application, multiple mounting positions 322 for positioning the serpentine pipe segment 211 distributed along the first direction are provided on the mounting bracket. Compared with the structure of fixing the multiple pipe segments of the serpentine pipe segment 211 with multiple mounting parts, this application can simplify the installation steps of the mounting bracket, reduce the number of mounting brackets, and improve the support effect of the mounting bracket on the multiple pipe segments of the serpentine pipe segment 211.

[0100] In some embodiments, as shown in Figures 3-9, the mounting bracket includes: a mounting base 31, a connecting portion 33, and a plurality of clamping members 32.

[0101] As shown in Figure 4, the mounting base 31 extends along the first direction, and the connecting part 33 and multiple clamping parts 32 are all mounted on the mounting base 31. The mounting base 31 plays a role in bearing and fixing the multiple clamping parts 32. The mounting base 31 can be arranged along the extension direction of the serpentine pipe section 211.

[0102] The shape of the mounting base 31 can be a straight line, an arc, or other shape suitable for the layout of the serpentine pipe segment 211, extending along the first direction.

[0103] As shown in Figure 3, multiple sets of clamping members 32 are disposed on at least one side of the mounting base 31 along the thickness direction, and the clamping members 32 form mounting positions 322.

[0104] As shown in Figures 3 and 6, multiple sets of clamping members 32 can be disposed on one or both sides of the mounting base 31 along the thickness direction.

[0105] For example, as shown in Figures 3 and 8, when multiple sets of clamping members 32 are provided on one side of the mounting base 31 along the thickness direction, if one set of clamping members 32 is provided on one side of the mounting base 31 along the thickness direction, the mounting bracket can fix and support multiple pipe segments of the same layer serpentine pipe segment 211 distributed along the first direction, thereby limiting the spacing of different pipe segments in the same layer serpentine pipe segment 211 along the first direction; if multiple sets of clamping members 32 distributed along the thickness direction are provided on one side of the mounting base 31 along the thickness direction, it can limit both the spacing of different layers of heat exchange tube groups 21 along the thickness direction and the spacing of different pipe segments in the same layer serpentine pipe segment 211 along the first direction.

[0106] As shown in Figures 6 and 7, when multiple sets of clamping members 32 are arranged on both sides of the mounting base 31 along the thickness direction, the mounting bracket can at least fix and support the adjacent layers of serpentine tube segments 211 distributed along the thickness direction, which limits the spacing of different layers of heat exchange tube groups 21 along the thickness direction, and also limits the spacing of different tube segments within the same layer of serpentine tube segments 211 along the first direction.

[0107] The mounting base 31 is connected to the housing via the connecting part 33, which can be connected to the housing by means of threaded connection, welding, snap-fit, or abutment. For example, the mounting base 31 can be connected to the inner liner 1 and / or the outer shell 6 via the connecting part 33.

[0108] In some embodiments, the connecting part 33 has a slot 331 for engaging with the housing of the refrigeration device 100. The connecting part 33 and the housing have at least three installation methods:

[0109] Firstly, when the mounting base 31 is connected to the inner liner 1 via the connecting part 33, as shown in Figures 5 and 7, the connecting part 33 has a slot 331 for engaging with the end of the inner liner 1.

[0110] The sides and bottom of the inner liner 1 have overlapping extensions, which can improve the stability of the connection between the sides and bottom of the inner liner 1, thereby improving the overall sealing performance of the inner liner 1.

[0111] The groove 331 of the connecting part 33 matches the shape of the end of the inner liner 1 so that the connecting part 33 engages with the inner end.

[0112] In this embodiment, the snap-fit ​​method between the slot 331 and the end of the inner liner 1 greatly simplifies the assembly process and improves production efficiency. Furthermore, the installation of the mounting bracket and the inner liner 1 does not require the use of additional fasteners (such as screws, nuts, etc.), which reduces assembly time and cost.

[0113] Secondly, when the mounting base 31 is connected to the housing 6 via the connecting part 33, the connecting part 33 may have a slot 331 for engaging with the end of the housing 6.

[0114] The side surface and bottom surface of the outer casing 6 have overlapping extensions that can extend toward the interior of the outer casing 6, thereby improving the stability of the connection between the side surface and the bottom surface of the outer casing 6.

[0115] The groove 331 of the connecting part 33 matches the shape of the end of the housing 6 so that the connecting part 33 engages with the inner end of the extension of the housing 6, thereby positioning the mounting bracket assembly.

[0116] In this embodiment, the snap-fit ​​connection between the slot 331 and the housing 6 greatly simplifies the assembly process and improves production efficiency. Furthermore, the installation of the mounting bracket and the housing 6 does not require the use of additional fasteners (such as screws, nuts, etc.), which reduces assembly time and cost.

[0117] Third, when the mounting bracket assembly is located between the outer shell 6 and the inner liner 1, the connecting part 33 can be provided on both sides of the mounting base 31 along the thickness direction, and the connecting part 33 abuts against the outer shell 6 and the inner liner 1 respectively.

[0118] In this embodiment, the mounting bracket assembly is sandwiched between the outer shell 6 and the inner liner 1. The mounting base 31 is provided with connecting portions 33 on both sides along the thickness direction, thereby extending the thickness of the mounting base 31 and increasing the stability of the position of the mounting bracket assembly between the outer shell 6 and the inner liner 1.

[0119] In some embodiments, the mounting base 31 is provided with a plurality of clamping members 32 distributed in a first direction, and the connecting portion 33 is provided at the end of the mounting base 31 along the first direction.

[0120] As shown in Figure 5, multiple clamping members 32 are arranged along the first direction; as shown in Figure 7, multiple clamping members 32 are disposed in two layers along the thickness direction of the mounting base 31, and multiple clamping members 32 in the same layer are arranged along the first direction.

[0121] As shown in Figures 5 and 7, the slot 331 is provided at the end of the mounting base 31 along the first direction to facilitate installation with the housing.

[0122] In some embodiments, the slot 331 is open in a first direction toward the direction where the clamping member 32 is provided, so that the slot 331 can be directly engaged with the end of the housing.

[0123] In some embodiments, the slot 331 is open in a first direction toward the direction in which the clamping member 32 is provided, so that the slot 331 can be inserted into the housing along the insertion direction of the mounting bracket assembly.

[0124] In some embodiments, the mounting base 31 is provided with a plurality of clamping members 32 distributed in a first direction, and the connecting portion 33 is provided at the end of the mounting base 31 along the first direction, so as to facilitate the installation of the mounting bracket and the housing, and at the same time improve the stability of the connection between the mounting bracket and the housing.

[0125] In some embodiments, the clamping member 32, the mounting base 31, and the connecting portion 33 are distributed along the thickness direction of the mounting bracket.

[0126] As shown in Figure 5, the clamping member 32, the mounting base 31, and the connecting part 33 are distributed sequentially along the thickness direction of the mounting bracket. The connecting part 33 protrudes from the mounting base 31 along the thickness direction of the mounting bracket to facilitate the installation of the mounting bracket and the housing, and at the same time improve the stability of the connection between the mounting bracket and the housing.

[0127] As shown in Figure 7, the clamping members 32 are distributed on both sides of the mounting base 31 along the thickness direction. That is, the clamping members 32, the mounting base 31, the clamping members 32 and the connecting part 33 are distributed sequentially along the thickness direction of the mounting bracket. The connecting part 33 protrudes from the mounting base 31 along the thickness direction of the mounting bracket to facilitate the installation of the mounting bracket and the box, and at the same time improve the stability of the connection between the mounting bracket and the box.

[0128] In some embodiments, as shown in FIG7, the clamping member 32 includes two opposing jaws 321 arranged in a symmetrical or mirror manner to jointly clamp the heat exchange tube.

[0129] One end of the gripper 321 is connected to the mounting base 31. The connection method can be welding, bolting, riveting or other suitable connection methods to improve the firmness of the connection between the gripper 321 and the mounting base 31.

[0130] As shown in Figure 9, the two grippers 321 of the clamping member 32 form flanges 323 that bend towards each other at the ends opposite to the mounting base 31. The design of the flanges 323 increases the contact area between the grippers 321 and the heat exchange tube, improving the stability and reliability of the clamping. At the same time, the flanges 323 can also play a guiding and positioning role, making it easier for the heat exchange tube to be clamped in the correct position and reducing the risk of the heat exchange tube detaching from the mounting position 322.

[0131] Two opposing clamps 321 form a mounting position 322, which is used to accommodate and fix the heat exchange tube. By adjusting the spacing between the clamps 321 and the shape of the flange 323, heat exchange tubes of different diameters and shapes can be accommodated.

[0132] The gripper 321 can have a certain degree of elasticity to accommodate changes in the shape and size of the heat exchange tube when gripping it. This elastic design can reduce pressure concentration on the heat exchange tube and avoid damage.

[0133] The shape and size of the flange 323 can be optimized according to the shape and size of the heat exchange tube. For example, for a circular heat exchange tube, the flange 323 can be designed as an arc or a cone to better fit the surface of the heat exchange tube. For heat exchange tubes of other shapes, the flange 323 can also be adjusted accordingly.

[0134] In some embodiments, as shown in FIG9, the flange 323 is inclined toward the mounting base 31 to guide the heat exchange tube, making it easier for the heat exchange tube to be placed into the mounting position 322 and less likely to fall off from the mounting position 322. This helps to simplify the assembly of the heat exchange tube and the mounting bracket and improve the stability of the heat exchange tube.

[0135] In some embodiments, as shown in FIG8, the mounting bracket further includes a first reinforcing part 34, which is connected between the side wall of the gripper 321 and the mounting base 31. The first reinforcing part 34 is used to enhance the connection strength between the gripper 321 and the mounting base 31, and reduce the risk of the gripper 321 breaking or loosening at the connection due to excessive force when clamping the heat exchange tube.

[0136] The shape and size of the first reinforcing part 34 can be adjusted according to the shape and size of the gripper 321 and the mounting base 31, as well as the desired reinforcing effect.

[0137] For example, the first reinforcing part 34 can be designed as a triangle, rectangle or other shape with good stability.

[0138] As shown in Figure 7, the mounting bracket also includes a second reinforcing part 35, which is connected between the flange 323 and the mounting base 31, and at least a portion of the second reinforcing part 35 is spaced apart from the side wall of the gripper 321.

[0139] The second reinforcing part 35 is used to enhance the connection strength between the flange 323 and the mounting base 31, while avoiding excessive constraint or interference on the side wall of the gripper 321. By setting them at intervals, the elasticity of the gripper 321 can be improved, so that the gripper 321 can maintain sufficient flexibility and adaptability when clamping the heat exchange tube.

[0140] The shape and size of the second reinforcing part 35 can also be adjusted according to the shape and size of the flange 323 and the mounting base 31, as well as the desired reinforcement effect. For example, the second reinforcing part 35 can be designed as an arc, trapezoid, or other shape to accommodate the tilt and bending of the flange 323.

[0141] In this embodiment, by providing the first reinforcing part 34 and the second reinforcing part 35, the overall strength and stability of the mounting bracket can be improved, so that the mounting bracket can better withstand the weight of the heat exchange tube and the vibration and impact generated during refrigerant circulation; and the design of the reinforcing part helps to disperse and balance the stress distribution on the mounting bracket, reduce damage caused by stress concentration, and extend the service life of the mounting bracket and the refrigeration equipment 100.

[0142] In some embodiments, the mounting bracket includes a second reinforcing portion 35 connected between the flange 323 and the mounting base 31, and at least a portion of the second reinforcing portion 35 is spaced apart from the sidewall of the gripper 321.

[0143] The second reinforcing part 35 is used to enhance the connection strength between the flange 323 and the mounting base 31, while avoiding excessive constraint or interference on the side wall of the gripper 321. By setting them at intervals, the elasticity of the gripper 321 can be improved, so that the gripper 321 can maintain sufficient flexibility and adaptability when clamping the heat exchange tube.

[0144] The shape and size of the second reinforcing part 35 can also be adjusted according to the shape and size of the flange 323 and the mounting base 31, as well as the desired reinforcement effect. For example, the second reinforcing part 35 can be designed as an arc, trapezoid, or other shape to accommodate the tilt and bending of the flange 323.

[0145] In some embodiments, the mounting bracket further includes a first reinforcing portion 34, which is connected between the side wall of the gripper 321 and the mounting base 31.

[0146] The shape and size of the first reinforcing part 34 can be adjusted according to the shape and size of the gripper 321 and the mounting base 31, as well as the desired reinforcing effect.

[0147] For example, the first reinforcing part 34 can be designed as a triangle, rectangle or other shape with good stability.

[0148] The mounting bracket also includes a second reinforcing part 35 connected between the flange 323 and the mounting base 31, and at least a portion of the second reinforcing part 35 is spaced apart from the side wall of the gripper 321.

[0149] In some embodiments, as shown in FIG7, the width of the slot opening of the slot 331 is greater than the width of the bottom of the slot 331, that is, the slot opening of the slot 331 is formed with a guide surface, and the slot opening of the slot 331 is formed with an outwardly bent guide surface, so as to facilitate the assembly of the slot 331 with the end of the inner liner 1 or the end of the outer shell 6.

[0150] In some embodiments, as shown in Figures 3 and 4, the mounting base 31 is provided with a plurality of first weight-reducing grooves 311, which are spaced apart along the extending direction of the mounting base 31; and / or, the mounting base 31 is provided with a plurality of first through holes 312.

[0151] In this embodiment, the mounting base 31 is provided with multiple first weight-reducing grooves 311 and / or multiple first through holes 312. Under the premise of meeting structural strength and stability, the weight of the mounting base 31 can be reduced, the utilization of materials can be optimized, and the foaming material can flow through the first through holes 312 during the filling of foaming material between the inner liner 1 and the outer shell 6. This improves the stability of the combination between the mounting base 31 and the foaming material, thereby improving the positional stability of the mounting bracket, thus improving the support and fixing effect of the mounting bracket on the heat exchange tube assembly 21, and improving the stability of the refrigeration equipment 100.

[0152] The shape of the first weight-reducing groove 311 can be designed as a circle, ellipse, rectangle or other shapes according to actual needs.

[0153] Multiple first weight-reducing grooves 311 are arranged at intervals along the extension direction of the mounting base 31 to achieve weight reduction while maintaining the overall stability of the structure.

[0154] In this embodiment, the design of the first weight-reducing groove 311 significantly reduces the weight of the mounting base 31, helping to reduce the overall weight and cost of the refrigeration equipment 100. By rationally designing the shape and arrangement of the first weight-reducing groove 311, material utilization can be optimized and improved while maintaining structural strength. The first weight-reducing groove 311 can also increase the stability of the bonding between the mounting base 31 and the foaming material, thereby improving the support and fixation effect of the mounting bracket on the heat exchange tube assembly 21 and enhancing the stability of the refrigeration equipment 100.

[0155] The first through hole 312 can be circular, square, or other shapes, depending on the design requirements and processing capabilities.

[0156] During the process of filling the foam material between the inner liner 1 and the outer shell 6, it is convenient for the foam material to flow from the first through hole 312, which improves the stability of the bonding between the mounting base 31 and the foam material, thereby improving the positional stability of the mounting bracket, thus improving the support and fixing effect of the mounting bracket on the heat exchange tube assembly 21, and improving the stability of the refrigeration equipment 100.

[0157] In some embodiments, the mounting base 31 is provided with a plurality of first weight-reducing grooves 311, which are spaced apart along the extending direction of the mounting base 31.

[0158] The shape of the first weight-reducing groove 311 can be designed as a circle, ellipse, rectangle or other shapes according to actual needs.

[0159] Multiple first weight-reducing grooves 311 are arranged at intervals along the extension direction of the mounting base 31 to achieve weight reduction while maintaining the overall stability of the structure.

[0160] In this embodiment, the design of the first weight-reducing groove 311 significantly reduces the weight of the mounting base 31, helping to reduce the overall weight and cost of the refrigeration equipment 100. By rationally designing the shape and arrangement of the first weight-reducing groove 311, material utilization can be optimized and improved while maintaining structural strength. The first weight-reducing groove 311 can also increase the stability of the bonding between the mounting base 31 and the foaming material, thereby improving the support and fixation effect of the mounting bracket on the heat exchange tube assembly 21 and enhancing the stability of the refrigeration equipment 100.

[0161] In some embodiments, as shown in Figures 5 and 6, the mounting base 31 is provided with a plurality of first through holes 312.

[0162] The first through hole 312 can be circular, square, or other shapes, depending on the design requirements and processing capabilities.

[0163] When foam material is filled between the inner liner 1 and the outer shell 6, it facilitates the flow of foam material from the first through hole 312, improves the stability of the bonding between the mounting base 31 and the foam material, thereby improving the positional stability of the mounting bracket, thus improving the support and fixing effect of the mounting bracket on the heat exchange tube assembly 21, and improving the stability of the refrigeration equipment 100.

[0164] The mounting bracket assembly may include at least a portion of the first mounting bracket 36, the second mounting bracket 37, and the third mounting bracket 38, and combinations thereof.

[0165] The first mounting bracket 36 is used to position the heat exchange tube assembly 21 near the inner liner 1; the second mounting bracket 37 is used to position the heat exchange tube assembly 21 near the inner liner 1 and the heat exchange tube assembly 21 away from the inner liner 1; the third mounting bracket 38 is used to position the heat exchange tube assembly 21 near the inner liner 1, and to position the heat exchange tube assembly 21 near the inner liner 1 and part of the transfer pipe 215 away from the inner liner 1; and the fourth mounting bracket is used to position the heat exchange tube assembly 21 away from the inner liner 1.

[0166] The following examples illustrate some implementation methods for the above types of mounting brackets.

[0167] In some embodiments, as shown in Figures 4 and 5, the mounting bracket group includes at least one first mounting bracket 36, and a plurality of mounting positions 322 on the first mounting bracket 36 are in the same group along the thickness direction.

[0168] The first mounting bracket 36 is used to fix the heat exchange tube group 21 in the same layer, and multiple mounting positions 322 can be set on the same side of the mounting base 31 of the first mounting bracket 36.

[0169] For example, when the first mounting bracket 36 is installed between the inner liner 1 and a heat exchange tube assembly 21 near the inner liner 1, the first mounting bracket 36 can be used to position the heat exchange tube assembly 21 near the inner liner 1.

[0170] For example, when the first mounting bracket 36 is installed between the housing 6 and a heat exchange tube assembly 21 near the housing 6, the first mounting bracket 36 can be used to position the heat exchange tube assembly 21 near the housing 6.

[0171] For example, when the first mounting bracket 36 is installed between a heat exchange tube assembly 21 near the inner liner 1 and a heat exchange tube assembly 21 away from the inner liner 1, the first mounting bracket 36 can be used to position the heat exchange tube assembly 21 away from the inner liner 1 or the heat exchange tube assembly 21 near the inner liner 1, depending on the orientation of the first mounting bracket 36.

[0172] In some embodiments, as shown in FIG1, the refrigeration system 2 further includes an evaporator 22 wound around the inner liner 1 of the refrigeration device 100. The mounting base 31 of the first mounting bracket 36 abuts against the evaporator 22 on the side opposite to the corresponding clamp 32. Thus, when the first mounting bracket 36 is installed between the evaporator 22 and a layer of heat exchange tubes 21 near the inner liner 1, the first mounting bracket 36 can define the distance between the evaporator 22 and the layer of heat exchange tubes 21 near the inner liner 1.

[0173] In this embodiment, the evaporator 22 wrapped around the inner liner 1 can provide multi-point support for the support base of the first mounting bracket 36, thereby improving the stability of the position of the first mounting bracket 36.

[0174] In some embodiments, as shown in Figures 6 and 7, the mounting bracket assembly includes a second mounting bracket 37, and the multiple sets of clamping members 32 of the second mounting bracket 37 include a first set 371 and a second set 372, which are respectively disposed on both sides of the mounting base 31 along the thickness direction.

[0175] The second mounting bracket 37 can position two adjacent heat exchange tube groups 21 distributed along the thickness direction.

[0176] The first group 371 and the second group 372 both include multiple mounting positions 322. Multiple mounting positions 322 in the same group are used to fix the same layer of heat exchange tube group 21, and multiple mounting positions 322 in different groups are used to fix different layers of heat exchange tube group 21 distributed along the thickness direction.

[0177] The mounting base 31 of the second mounting bracket 37 is located between two adjacent heat exchange tube groups 21, which can limit the distance between the two adjacent heat exchange tube groups 21.

[0178] In some embodiments, as shown in Figures 6 and 7, the second mounting bracket 37 further includes at least one first support portion 373, which protrudes from the mounting base 31 and is higher than the clamping member 32, and abuts against the housing.

[0179] For example, when the second mounting bracket 37 is mounted upright, the first support portion 373 faces the inner liner 1 and abuts against the inner liner 1 to support the second mounting bracket 37 and improve the stability of the relative position between the second mounting bracket 37 and the inner liner 1.

[0180] For example, as shown in Figures 1 and 3, when the second mounting bracket 37 is installed in reverse, the first support portion 373 faces the outer shell 6. The first support portion 373 can abut against the outer shell 6 to support the second mounting bracket 37 and improve the stability of the relative position between the second mounting bracket 37, the inner liner 1 and the outer shell 6.

[0181] The first support portion 373 may include multiple portions, which are spaced apart along the extension direction of the second mounting bracket 37 to provide multi-point support for the second mounting bracket 37.

[0182] In some embodiments, as shown in Figures 8 and 9, the mounting bracket assembly includes at least one third mounting bracket 38, a plurality of mounting positions 322 on the third mounting bracket 38 being in the same group along the thickness direction, and at least one mounting position 322 being used to position the multilayer heat exchange tube assembly 21.

[0183] The third mounting bracket 38 is used to fix the heat exchange tube assembly 21 on the same layer, and at the same time, it is used to fix the connecting pipes between different refrigeration components. The connecting pipes can be located on different layers from the fixed heat exchange tube assembly 21.

[0184] In actual use, the refrigeration system 2 includes a heat exchanger 25, a regenerator, an evaporator 22, and an evaporator-condenser 24.

[0185] The evaporator condenser 24 and the heat exchanger 25 are distributed laterally, and the heat exchanger 25 and the regenerator are stacked at intervals along the thickness direction. The evaporator 22 is wrapped around the outer wall of the inner liner 1.

[0186] The heat exchanger 25 includes a first serpentine tube section and a first connecting section, the first serpentine tube section extending along a first direction and the first serpentine tube section and the first connecting section being distributed laterally.

[0187] The regenerator includes a second serpentine tube section and a second connecting section, the second serpentine tube section extending along a first direction and the second serpentine tube section and the second connecting section being distributed laterally.

[0188] The evaporator-condenser 24 includes a third serpentine tube section and a third connecting section. The third connecting section is located laterally between the third serpentine tube section and the first serpentine tube section. The third serpentine tube section extends in a first direction, and the third serpentine tube section and the third connecting section are distributed laterally.

[0189] A portion of the evaporator 22, a portion of the regenerator, and a portion of the heat exchanger 25 are distributed along the direction from the inner liner 1 to the outer shell 6. A portion of the evaporator 22 and a portion of the evaporator-condenser 24 are also distributed along the direction from the inner liner 1 to the outer shell 6.

[0190] The first mounting bracket 36 is disposed between the evaporator 22 and the regenerator to fix the distance between the regenerator and the evaporator 22, and at the same time to stabilize the stability of each section of the second serpentine tube section of the regenerator.

[0191] The second mounting bracket 37 is disposed between the evaporator 22 and the outer casing 6 to simultaneously fix the distance between the regenerator and the evaporator 22 and between the regenerator and the heat exchanger 25, and can simultaneously position the stability of each section of the second serpentine tube segment of the regenerator and the stability of each section of the first serpentine tube segment of the heat exchanger 25.

[0192] The third mounting bracket 38 is disposed between the evaporator 22 and the evaporator-condenser 24 to fix the distance between the evaporator-condenser 24 and the evaporator 22, and to stabilize the stability of each section of the third serpentine tube segment of the evaporator-condenser 24. It can also fix the connecting pipe between the evaporator-condenser 24 and the heat exchanger 25. The connecting pipe is located on the side of the evaporator-condenser 24 away from the evaporator 22 along the thickness direction.

[0193] In some embodiments, as shown in Figures 1 and 3, the heat exchange tube assembly 21 is arranged in at least a portion of the area as multiple tube segments 212 spaced apart laterally; the refrigeration equipment 100 also includes a fixing bracket 4, which forms a plurality of fixing positions 422, including a plurality of laterally spaced positions, each for fixing a tube segment 212.

[0194] For example, the multiple tube segments 212 of the heat exchange tube assembly 21, which are spaced apart laterally, can be multiple tube segments 212 of the same refrigeration component, such as the heat exchange portion and connecting portion of the heat exchanger 25, the heat exchange portion and connecting portion of the regenerator, or the heat exchange portion and connecting portion of the evaporator-condenser 24; or, the multiple tube segments 212 of the heat exchange tube assembly 21, which are spaced apart laterally, can be multiple tube segments 212 of different refrigeration components, such as the heat exchange portion of the heat exchanger 25 and the connecting portion of the evaporator-condenser 24.

[0195] Multiple tube sections 212 can be straight or curved. The fixing bracket 4 is used to fix the spacing between adjacent tube sections 212 or non-adjacent tube sections in the multiple tube sections 212 distributed laterally, so as to support the weight of the entire heat exchange tube assembly 21 and resist the vibration and stress generated by the refrigeration system 2 during operation, thereby improving the stability and positional accuracy of the heat exchange tube assembly 21 in the refrigeration equipment 100, and thus improving the stability of the refrigeration system 2.

[0196] The number of fixed supports 4 can be distributed according to the length and number of heat exchange tubes 21. For example, multiple fixed supports 4 can be distributed to form multi-point positioning and support, thereby improving the lateral positioning and support effect of heat exchange tubes 21.

[0197] In this embodiment, as shown in Figures 1, 3, and 11, the mounting bracket assembly and the fixing bracket 4 cooperate. The mounting bracket assembly can position and support the multi-layer heat exchange tubes of the heat exchange tube assembly 21 spaced apart along the thickness direction, and position the serpentine tube segments 211 extending vertically in the same layer of heat exchange tubes. The fixing bracket 4 can position and support the multi-section tubes 212 distributed laterally in the same layer of heat exchange tube assembly 21. Thus, the tube segments distributed in the lateral, vertical, and thickness directions of the heat exchange tube assembly 21 can be positioned and supported to support the weight of the entire heat exchange tube assembly 21 and resist the vibration and stress generated by the refrigeration system 2 during operation. This can improve the stability of the spacing between adjacent tube segments of the heat exchange tube assembly 21 distributed in the lateral, vertical, and thickness directions, thereby improving the uniformity of the heat exchange temperature of the heat exchange tube assembly 21, improving the pass rate of the prototype cooling speed and depth, and thus improving the stability of the refrigeration system 2.

[0198] The size and shape of the fixing position 422 are matched with the heat exchange tube assembly 21 to improve the fixing and support effect of the tube section 212. In this way, each tube section 212 can be independently and stably supported, thereby avoiding displacement or deformation caused by vibration or temperature changes, thus improving the stability of the spacing between adjacent tube sections 212, and thus improving the spacing between the multiple tube sections 212 distributed laterally in the heat exchange tube assembly 21, so that the multiple tube sections 212 distributed laterally all meet the preset heat exchange design.

[0199] In addition, the number and position of the fixing positions 422 can be adjusted according to the specific heat exchange tube group 21 design and cooling requirements to achieve the best fixing effect and heat exchange performance.

[0200] As shown in Figure 11, the fixing bracket 4 can be installed on the inner liner 1, the outer shell 6, or clamped between the inner liner 1 and the outer shell 6. Alternatively, the fixing bracket 4 can also be installed on the heat exchange tube assembly 21. The fixing bracket 4 is installed and the heat exchange tube assembly 21 is positioned by positioning and assembling with the heat exchange tube assembly 21.

[0201] In some embodiments, the heat exchange tube assembly 21 includes, in at least a portion of the region, serpentine tube segments 211 and connecting segments 213 distributed laterally.

[0202] The serpentine tube segments 211 and connecting segments 213 that are distributed laterally and are adjacent to each other can belong to the same refrigeration component or to different refrigeration components; the serpentine tube segments 211 and connecting segments 213 that are distributed laterally and are adjacent to each other can also be in the same layer along the thickness direction or be in different layers along the thickness direction.

[0203] At least a portion of the serpentine pipe segment 211 and at least a portion of the connecting segment 213 may extend along a first direction and be distributed laterally. A plurality of mounting positions 322 on the fixed bracket 4 are distributed laterally for positioning and supporting the positions and spacing of adjacent serpentine pipe segments 211 and connecting segments 213.

[0204] In this embodiment, the heat exchange tube assembly 21 effectively increases the heat exchange area by setting serpentine tube segments 211, thereby improving the refrigeration efficiency; and the distribution of serpentine tube segments 211 can extend the arrangement area of ​​the heat exchange tube assembly 21, avoiding local overheating or overcooling; and the design of serpentine tube segments 211 can arrange more heat exchange tubes in a limited space, improving the space utilization and refrigeration effect of the refrigeration equipment 100.

[0205] The connecting section 213 can be used to connect the serpentine pipe section 211 with other pipe sections.

[0206] For example, one end of the connection section 213 of the heat exchanger 25 away from the serpentine tube section 211 can be used to connect the first condenser 24 and the first compressor 23; one end of the connection section 213 of the heat exchanger 25 away from the serpentine tube section 211 can be used to connect the second condenser 24 and the second compressor 23; one end of the connection section 213 of the evaporator condenser 24 away from the serpentine tube section 211 can be used to connect the heat exchanger 25 and the serpentine tube section 211 of the heat exchanger 25.

[0207] As shown in Figures 11, 12 and 13, the fixed bracket 4 extends laterally, and multiple mounting positions 322 on the same fixed bracket 4 are distributed laterally and used to position adjacent serpentine pipe sections 211 and connecting sections 213.

[0208] Adjacent serpentine tube segments 211 and connecting segments 213 can be in the same layer along the thickness direction of the heat exchange tube group 21, or they can be in different layers along the thickness direction.

[0209] In some embodiments, as shown in Figures 11, 12 and 13, the fixing bracket 4 includes a fixing base 41 and a plurality of fixing members 42.

[0210] The fixing seat 41 extends laterally and serves to support and fix multiple fixing elements 42.

[0211] Multiple fasteners 42 are disposed on at least one side of the fixing base 41 along the thickness direction. The multiple fasteners 42 can be disposed on one or both sides of the fixing base 41 along the thickness direction to fix one or more layers of the heat exchange tube assembly 21 along the thickness direction.

[0212] Among them, the fastener 42 forms the fixed position 422.

[0213] For example, as shown in Figures 15 and 16, when multiple fasteners 42 can be provided on one side of the fixing base 41 along the thickness direction, if a set of fasteners 42 is provided on one side of the fixing base 41 along the thickness direction, the fixing bracket 4 can fix and support the serpentine pipe segments 211 and connecting segments 213 distributed in the same layer, thereby limiting the lateral spacing of the serpentine pipe segments 211 and connecting segments 213 distributed in the same layer; if multiple sets of fasteners 42 distributed along the thickness direction are provided on one side of the fixing base 41 along the thickness direction, the lateral spacing of the serpentine pipe segments 211 and connecting segments 213 in different layers along the thickness direction can be limited, as well as the lateral spacing of the serpentine pipe segments 211 and connecting segments 213 in the same layer can be limited.

[0214] As shown in Figures 11, 12 and 13, when multiple sets of fixing members 42 are arranged on both sides of the fixing base 41 along the thickness direction, the fixing bracket 4 can at least fix and support the adjacent layers of serpentine tube segments 211 and connecting segments 213 distributed along the thickness direction in the transverse direction, which limits the spacing of different layers of heat exchange tube groups 21 along the thickness direction, and also limits the spacing of the same layer of serpentine tube segments 211 and connecting tubes in the transverse direction.

[0215] In some embodiments, as shown in Figures 11 and 16, the fixing member 42 includes two fixing claws arranged opposite each other. One end of the fixing claws is connected to the fixing base 41. The ends of the two fixing claws of the fixing member 42 that are away from the fixing base 41 form bent portions 421 that bend toward each other. The two fixing claws arranged opposite each other form fixing positions 422.

[0216] The design of the bend 421 increases the contact area between the fixing claw and the heat exchange tube, improving the stability and reliability of clamping. At the same time, the bend 421 also serves as a guide and positioner, making it easier for the heat exchange tube to be clamped in the correct position and reducing the risk of the heat exchange tube detaching from the fixing position 422.

[0217] Two opposing fixing claws form a fixing position 422, which is used to accommodate and fix the heat exchange tube. By adjusting the spacing between the fixing claws and the shape of the bend 421, heat exchange tubes of different diameters and shapes can be accommodated.

[0218] The retaining claws can have a certain degree of elasticity to accommodate changes in the shape and size of the heat exchange tube when clamping it. This elastic design can reduce pressure concentration on the heat exchange tube and prevent damage.

[0219] The shape and size of the bend 421 can be optimized according to the shape and size of the heat exchange tube. For example, for a circular heat exchange tube, the bend 421 can be designed as an arc or a cone to better fit the surface of the heat exchange tube. For heat exchange tubes of other shapes, the bend 421 can also be adjusted accordingly.

[0220] In some embodiments, the bend 421 is inclined toward the fixing seat 41 to guide the heat exchange tube, making it easier for the heat exchange tube to be placed into the fixing position 422 and less likely to fall off from the fixing position 422. This helps to simplify the assembly of the heat exchange tube and the fixing bracket 4 and improve the stability of the heat exchange tube.

[0221] In some embodiments, as shown in Figures 11, 12 and 13, the fixing bracket 4 further includes a reinforcing member 43, which is connected between the bent portion 421 and the fixing seat 41, and at least a portion of the reinforcing member 43 is spaced apart from the sidewall of the fixing claw.

[0222] The reinforcing member 43 enhances the connection strength between the bent portion 421 and the fixed base 41, while avoiding excessive constraint or interference on the sidewalls of the fixing claw. The spaced arrangement improves the elasticity of the fixing claw, allowing it to maintain sufficient flexibility and adaptability when clamping the heat exchange tube.

[0223] The shape and size of the reinforcing member 43 can also be adjusted according to the shape and size of the bent portion 421 and the fixing seat 41, as well as the desired reinforcement effect. For example, the reinforcing member 43 can be designed as an arc, trapezoid, or other shape to accommodate the tilt and bending of the bent portion 421.

[0224] In this embodiment, by providing the reinforcing member 43, the overall strength and stability of the fixed bracket 4 can be improved, so that the fixed bracket 4 can better withstand the weight of the heat exchange tube and the vibration and impact generated during refrigerant circulation; and the design of the reinforcing part helps to disperse and balance the stress distribution on the fixed bracket 4, reduce damage caused by stress concentration, and extend the service life of the fixed bracket 4 and the refrigeration equipment 100.

[0225] In some embodiments, as shown in Figures 11, 12 and 13, the fixing base 41 is provided with a plurality of second weight-reducing grooves 44, which are arranged at intervals along the extending direction of the fixing base 41, and the fixing base 41 is provided with a plurality of second through holes 46.

[0226] In this embodiment, the fixing seat 41 is provided with multiple second weight-reducing grooves 44 and / or multiple second through holes 46. Under the premise of meeting the structural strength and stability, the weight of the fixing seat 41 can be reduced, the material utilization can be optimized, and the foaming material can flow through the second through holes 46 during the filling of foaming material between the inner liner 1 and the outer shell 6, thereby improving the stability of the combination between the fixing seat 41 and the foaming material, thereby improving the positional stability of the fixing bracket 4, thereby improving the support and fixing effect of the fixing bracket 4 on the heat exchange tube assembly 21, and improving the stability of the refrigeration equipment 100.

[0227] The shape of the second weight-reducing groove 44 can be designed as a circle, ellipse, rectangle or other shapes according to actual needs.

[0228] Multiple second weight-reducing grooves 44 are arranged at intervals along the extension direction of the fixed base 41 to achieve weight reduction while maintaining the overall stability of the structure.

[0229] In this embodiment, the design of the second weight-reducing groove 44 significantly reduces the weight of the fixing base 41, helping to reduce the overall weight and cost of the refrigeration equipment 100. By rationally designing the shape and arrangement of the second weight-reducing groove 44, material utilization can be optimized and improved while maintaining structural strength. The second weight-reducing groove 44 can also increase the stability of the bonding between the fixing base 41 and the foaming material, thereby improving the support and fixing effect of the fixing bracket 4 on the heat exchange tube assembly 21 and improving the stability of the refrigeration equipment 100.

[0230] The second through hole 46 can be circular, square, or other shapes, depending on the design requirements and processing capabilities.

[0231] During the process of filling the foam material between the inner liner 1 and the outer shell 6, it is convenient for the foam material to flow through the second through hole 46, which improves the stability of the combination between the fixing seat 41 and the foam material, thereby improving the positional stability of the fixing bracket 4, thus improving the support and fixing effect of the fixing bracket 4 on the heat exchange tube assembly 21, and improving the stability of the refrigeration equipment 100.

[0232] In some embodiments, as shown in FIG13, the fixing base 41 is provided with a plurality of second through holes 46.

[0233] The second through hole 46 can be circular, square, or other shapes, depending on the design requirements and processing capabilities.

[0234] During the process of filling the foam material between the inner liner 1 and the outer shell 6, it is convenient for the foam material to flow through the second through hole 46, which improves the stability of the combination between the fixing seat 41 and the foam material, thereby improving the positional stability of the fixing bracket 4, thus improving the support and fixing effect of the fixing bracket 4 on the heat exchange tube assembly 21, and improving the stability of the refrigeration equipment 100.

[0235] In some embodiments, the mounting base 41 is provided with a plurality of second weight-reducing grooves 44, which are spaced apart along the extending direction of the mounting base 41.

[0236] The shape of the second weight-reducing groove 44 can be designed as a circle, ellipse, rectangle or other shapes according to actual needs.

[0237] Multiple second weight-reducing grooves 44 are arranged at intervals along the extension direction of the fixed base 41 to achieve weight reduction while maintaining the overall stability of the structure.

[0238] In this embodiment, the design of the second weight-reducing groove 44 significantly reduces the weight of the fixing base 41, helping to reduce the overall weight and cost of the refrigeration equipment 100. By rationally designing the shape and arrangement of the second weight-reducing groove 44, material utilization can be optimized and improved while maintaining structural strength. The second weight-reducing groove 44 can also increase the stability of the bonding between the fixing base 41 and the foaming material, thereby improving the support and fixing effect of the fixing bracket 4 on the heat exchange tube assembly 21 and improving the stability of the refrigeration equipment 100.

[0239] In some embodiments, as shown in FIG11, the heat exchange tube assembly 21 includes, in at least a portion of the region, a serpentine tube segment 211 and a connecting segment 213 distributed laterally. The projection of the serpentine tube segment 211 along the thickness direction falls within the projection of the inner liner 1 along the thickness direction, and the projection of the connecting segment 213 along the thickness direction is located outside the projection of the inner liner 1 along the thickness direction.

[0240] When viewed from the thickness direction (i.e., the direction perpendicular to the main plane of the inner liner 1), the projection of the serpentine tube segment 211 falls entirely within the projection of the inner liner 1. This means the serpentine tube segment 211 is tightly arranged on one side of the inner liner 1, fully utilizing the space between the inner liner 1 and the outer shell 6 for heat exchange. The projection of the connecting segment 213 along the thickness direction lies outside the projection of the inner liner 1 along the thickness direction. The connecting segment 213 needs to bypass the inner liner 1 to connect with other refrigeration components and thus extends to the other side of the inner liner 1.

[0241] Among them, the projection of a portion of the multiple fixing positions 422 distributed laterally along the thickness direction falls within the projection of the inner liner 1 along the thickness direction, so as to fix the serpentine pipe section 211; the projection of a portion of the multiple fixing positions 422 distributed laterally along the thickness direction falls outside the projection of the inner liner 1 along the thickness direction, so as to fix the connecting section 213.

[0242] The fixing bracket 4 includes at least two of the following structures:

[0243] Firstly, as shown in Figures 14, 15 and 16, the fixed support 4 includes multiple fixed positions 422 distributed laterally. The fixed support 4 is used to position the pipe sections of the heat exchange tube group 21 distributed laterally in the same layer.

[0244] In this embodiment, the heat exchange tube assembly 21 includes, in at least a portion of the region, two transversely distributed serpentine tube segments 211 and a connecting segment 213 between the two serpentine tube segments 211.

[0245] The two serpentine tube segments 211 may belong to different refrigeration components or the same refrigeration component, and the connecting segment 213 is used to connect the two serpentine tube segments 211.

[0246] As shown in Figure 14, the fixing bracket 4 includes multiple brackets, at least one of which is used to position one of the two serpentine pipe segments 211 and the connecting segment 213, and at least another of which is used to position the other of the two serpentine pipe segments 211 and the connecting segment 213.

[0247] In this embodiment, multiple fixing positions 422 distributed laterally on the fixing bracket 4 are used to fix the serpentine pipe segments 211 and connecting segments 213 distributed laterally. Multiple fixing brackets 4 are used to fix multiple serpentine pipe segments 211 and multiple connecting segments 213. By setting multiple fixing brackets 4, the heat exchange tube group 21 can be supported at multiple points laterally, thereby improving the stability of the spacing between multiple pipe segments in the heat exchange tube group 21 laterally, thereby improving the consistency of the cooling rate of the heat exchange tube group 21 laterally.

[0248] Secondly, as shown in Figures 11, 12 and 13, the multiple fixing positions 422 include multiple groups distributed along the thickness direction. The multiple groups of fixing positions 422 are distributed along the thickness direction of the fixing bracket 4, and each group of fixing positions 422 includes multiple fixing positions 422 distributed along the transverse direction.

[0249] The fixed bracket 4 is used to fix and position the heat exchange tube assembly 21, which is distributed along the thickness direction and laterally.

[0250] In this embodiment, the heat exchange tube assembly 21 is arranged in multiple layers along the thickness direction in at least a portion of the area; multiple fixing positions 422 on the fixing bracket 4 are arranged in multiple groups spaced apart along the thickness direction, and multiple fixing positions 422 in different groups on the same fixing bracket 4 are distributed along the thickness direction and are used to position the multi-layer heat exchange tube assembly 21.

[0251] Among them, multiple fixing positions 422 of different groups are arranged on the fixing bracket 4 to facilitate fixing the heat exchange tube group 21 arranged along the thickness direction and reduce the assembly difficulty.

[0252] For example, the fixed position 422 of the alignment setting can be used to fix the adjacent two sides of the serpentine pipe segment 211, or the adjacent two sides of the connecting segment 213, or the adjacent two sides of the serpentine pipe segment 211 and the connecting segment 213.

[0253] In some embodiments, as shown in Figures 11, 12 and 13, the fixing bracket 4 further includes a snap-fit ​​portion 45, which protrudes along the thickness direction of the fixing seat 41. When the snap-fit ​​portion 45 is located on the side facing the inner liner 1, the snap-fit ​​portion 45 abuts against the inner liner 1 to provide additional support and stability for the fixing bracket 4.

[0254] For example, the snap-fit ​​part 45 can abut against one side of the inner liner 1 along the lateral direction to limit the fixing bracket 4 in the lateral direction, thereby limiting the heat exchange tube assembly 21 in the lateral direction and improving the stability of the heat exchange tube assembly 21 in the lateral direction; the snap-fit ​​part 45 can abut against one side of the inner liner 1 along the vertical direction to limit the fixing bracket 4 in the vertical direction, thereby limiting the heat exchange tube assembly 21 in the vertical direction and improving the stability of the heat exchange tube assembly 21 in the vertical direction.

[0255] In this embodiment, the inner liner 1 abuts against the snap-fit ​​part 45, which can reduce the possibility of damage to the heat exchange tube assembly 21 due to movement or vibration during installation and use.

[0256] In actual use, the refrigeration system 2 includes a heat exchanger 25 and a regenerator. The heat exchanger 25 and the regenerator are distributed along the thickness direction. The regenerator and the evaporator-condenser 24 are distributed in the transverse direction. Both the regenerator and the regenerator include a serpentine tube section 211 and a connecting section 213 distributed in the transverse direction. The projection of the serpentine tube section 211 along the thickness direction falls within the projection of the inner liner 1 along the thickness direction. The projection of the connecting section 213 along the thickness direction is located outside the projection of the inner liner 1 along the thickness direction.

[0257] The fixing bracket 4 with snap-fit ​​part 45 can be used to fix the heat exchanger 25 and the regenerator. The multiple fixing positions 422 distributed laterally on the fixing bracket 4 with snap-fit ​​part 45 can fix the serpentine tube section 211 and the connecting section 213 of the regenerator. The multi-layer fixing positions 422 distributed along the thickness direction on the fixing bracket 4 with snap-fit ​​part 45 can fix the serpentine tube section 211 of the regenerator. The snap-fit ​​part 45 abuts against the inner liner 1 or the outer shell 6 to limit the heat exchanger 25 and the regenerator laterally.

[0258] In some embodiments, as shown in FIG17, the refrigeration system includes an evaporator 22 and a heat exchange tube assembly 21, the heat exchange tube assembly 21 including a capillary tube 214, and the evaporator 22 is wound around the outer side of the inner liner 1; the refrigeration device 100 also includes a support bracket 5, the support bracket 5 is supported on the evaporator 22, the support bracket 5 is provided with an annular support position 512, and the capillary tube 214 is wound around the annular support position 512.

[0259] According to the refrigeration device 100 provided in the embodiments of this application, by setting a support bracket 5, which is used to position the capillary tube 214, the distance between the capillary tube 214 and the evaporator 22, the distance between the capillary tube 214 and the inner liner 1 or the outer shell 6, and the distance between the capillary tube 214 and the outer shell 6 are limited, thereby reducing the influence of the temperature of the inner liner 1, the evaporator 22 and the outer shell 6 on the temperature of the capillary tube 214. Since the support bracket 5 can be mass-produced, by setting the support bracket 5, the capillary tube 214 in multiple mass-produced refrigeration devices 100 of the same model can be located in a predetermined position, thereby improving the consistency of performance when the prototype is mass-produced.

[0260] In this embodiment, as shown in Figures 1, 2, and 17, the support bracket 5, the mounting bracket group, and the fixing bracket 4 work together to position each pipe segment within the heat exchange tube group 21 using the mass-produced support bracket 5, the mounting bracket group, and the fixing bracket 4. This positions the multi-layer heat exchange tubes along the transverse direction, the serpentine tube segments 211 and connecting segments 213 distributed along the transverse direction within the same layer, the serpentine tube segments 211 extending along the first direction within the same layer, and the capillary tubes 214. This allows the heat exchange tube groups 21 in multiple mass-produced refrigeration devices 100 of the same model to be located in predetermined positions, thereby improving the consistency of performance during prototype mass production, enhancing the reliability of the refrigeration system 2 in each refrigeration device 100, and extending the service life of the refrigeration device 100.

[0261] One side of the support bracket 5 is supported by the evaporator 22, and the other side can be supported by the outer shell 6 or spaced apart from the outer shell 6. The support bracket 5 is pre-assembled with the capillary tube 214 before filling with foam material.

[0262] The evaporator 22 is wound around the inner liner 1. The evaporator 22 is used to absorb heat and achieve a cooling effect on the compartment formed by the inner liner 1.

[0263] As shown in Figures 18 and 19, the annular bearing position 512 on the bearing support 5 is used to allow the capillary tube 214 to be wound in an orderly manner, thereby forming a compact and efficient capillary tube 214 heat exchange tube group 21, which improves the throttling effect.

[0264] The annular design of the annular bearing position 512 can reduce the installation difficulty of the capillary tube 214, extend the length of the capillary tube 214 in a limited space, and improve the refrigeration efficiency.

[0265] In some embodiments, as shown in Figures 2 and 3, the support bracket 5 includes a winding base 51, and the outer peripheral wall of the winding base 51 forms an annular support position 512.

[0266] The winding base 51 is the core component of the support bracket 5, and its shape and structure are crucial to the performance and stability of the entire refrigeration equipment 100. In this embodiment, the winding base 51 is designed to have an outer peripheral wall, which forms an annular support position 512.

[0267] In some embodiments, as shown in Figures 18 and 19, the outer peripheral wall of the winding base 51 is provided with baffles 511 at both ends along the axial direction. The baffles 511 extend circumferentially around the winding base 51, and the baffles and the outer peripheral wall of the winding base 51 form an annular bearing position 512.

[0268] The main design purpose of the retaining edge 511 is to reduce the slippage or loosening of the capillary tube 214 from the annular bearing position 512 during the winding process and operation, and to increase the number of winding layers of the capillary tube 214 along the axial direction at the annular bearing position 512.

[0269] Among them, the baffle 511 extends along the outer peripheral wall of the winding base 51. The baffle 511 can extend along the circumference of the winding base 51 to form a complete ring structure, or the baffle 511 can extend along the circumference of the winding base 51 to form a multi-segment arc structure.

[0270] In this embodiment, the baffle 511 not only provides a physical barrier for the capillary 214, but also increases the friction between the capillary 214 and the winding base 51 through its close fit design, making the capillary 214 more stable after winding. At the same time, the baffle 511 can make the winding base 51 and the foamed insulation layer 7 form an interlocking structure after foaming, improving the bonding strength and thus improving the positional stability of the winding base 51.

[0271] In some embodiments, as shown in Figures 18 and 19, the flanges 511 include a plurality of flanges 511 located at the same end and distributed circumferentially around the winding base 51. The flanges 511 also extend along the circumferential direction of the winding base 51 to form a multi-segment arc structure.

[0272] In this embodiment, the multi-segment design of the retaining edge 511 structure can reduce material costs and form an interlocking structure with the insulation layer 7 to improve the bonding strength, thereby improving the positional stability of the winding base 51.

[0273] In some embodiments, the flanges 511 located at different ends are staggered, which can further form an interlocking structure with the insulation layer 7, improve the bonding strength, and thereby improve the positional stability of the support bracket 5.

[0274] In some embodiments, as shown in Figures 18 and 19, a through hole 511 is provided on the end of the winding base 51 away from the inner liner 1. The through hole 5111 can be used to assemble with the outer shell 6, or to form an interlocking structure with the insulation layer 7 to improve the bonding strength.

[0275] In some embodiments, the inner wall of the winding base 51 is provided with an inwardly protruding reinforcing rib 513. The retaining edge 511 and the reinforcing rib 513 are respectively disposed on the inner and outer sides of the winding base 51. The reinforcing rib 513 can improve the structural strength of the winding base 51 and can form an interlocking structure with the insulation layer 7 to improve the bonding strength.

[0276] Among them, the reinforcing rib 513 can extend around the circumference of the base 51 to form a ring-shaped reinforcing structure, or it can include multiple reinforcing ribs 513 distributed at intervals around the circumference of the base 51.

[0277] In some embodiments, as shown in Figures 18 and 19, the inner wall of the winding base 51 is provided with at least one inwardly protruding reinforcing rib 513. The at least one reinforcing rib 513 is distributed circumferentially around the winding base 51. The design of the reinforcing rib 513 can form an interlocking structure with the insulation layer 7 to improve the bonding strength.

[0278] In some embodiments, the side of the spokes 52 facing away from the inner liner 1 is not higher than the side of the winding base 51 facing away from the inner liner 1, so as to reduce the installation difficulty of installing the support bracket 5 between the inner liner 1 and the outer shell 6.

[0279] In some embodiments, as shown in Figures 2 and 3, the support bracket 5 further includes spokes 52, the ends of which are connected to the winding base 51.

[0280] The spokes 52 provide additional support and stability to the winding base 51. Through their design of being connected to the winding base 51, the spokes 52 can effectively distribute and bear the weight and stress from the winding base 51 and the capillary 214 on it, thereby improving the load-bearing capacity and stability of the entire support bracket 5. At the same time, it can also improve the structural strength of the support bracket 5 and reduce the deformation of the support bracket 5 during the foaming process.

[0281] The spokes 52 and the winding base 51 can be connected by welding, bolting or integral molding to improve the stability of the connection between the spokes 52 and the winding base 51, thereby reducing the possibility of the capillary 214 loosening or falling off due to the deformation of the support bracket 5 during use.

[0282] The hub is formed by winding the base 51, and the spokes 52 include multiple spokes that extend radially from the hub to the rim. The number, shape, and layout of the spokes can be adjusted according to application requirements.

[0283] Since multiple spokes extend radially from the center of the hub to the rim, the at least partial spacing between adjacent spokes can form an interlocking structure with the insulation layer 7, improving the bonding strength and reducing the risk of deformation of the support bracket 5 during the foaming process.

[0284] In some embodiments, as shown in Figures 18 and 19, the spokes 52 are provided with a third weight-reducing groove 521, which is arranged along the extending direction of the spokes 52.

[0285] The shape of the third weight-reducing groove 521 can be designed as a circle, ellipse, rectangle or other shapes according to actual needs.

[0286] Multiple third weight-reducing grooves 521 are arranged at intervals along the extension direction of the spokes 52 to achieve weight reduction while maintaining the overall stability of the structure.

[0287] In this embodiment, the design of the third weight-reducing groove 521 significantly reduces the weight of the spokes 52, helping to reduce the overall weight and cost of the refrigeration equipment 100. By rationally designing the shape and arrangement of the third weight-reducing groove 521, material utilization can be optimized and improved while maintaining structural strength. The third weight-reducing groove 521 can also increase the stability of the bond between the spokes 52 and the foaming material, thereby improving the support and fixation effect of the bearing base on the capillary 214 and enhancing the stability of the refrigeration equipment 100.

[0288] In some embodiments, the spokes 52 protrude axially from the support bracket 5 on the side facing the inner liner 1, and the spokes 52 abut against the evaporator 22 on the side facing the inner liner 1.

[0289] Among them, a flexible layer can be provided on the side of the spoke 52 facing the inner liner 1. The flexible layer can be plastic, rubber, etc., to protect the evaporator 22.

[0290] In this embodiment, by providing spokes 52 protruding from the support bracket 5, the support bracket 5 and the evaporator 22 can be limited, increasing the distance between the support bracket 5 and the evaporator 22, and reducing the influence of the evaporator 22 or the inner liner 1 on the temperature of the capillary tube 214.

[0291] As shown in Figures 1, 2 and 3, this application also provides a refrigeration device 100, including: an inner liner 1, a refrigeration system 2 and a fixed bracket 4.

[0292] The inner liner 1 forms a compartment; the refrigeration system 2 includes a heat exchange tube assembly 21, which is arranged in at least a portion of the area as multiple tube segments 212 spaced apart laterally; and a fixing bracket 4 is installed on the inner liner 1 to form multiple fixing positions 422, which include multiple tube segments spaced apart laterally, each for fixing a tube segment 212.

[0293] According to the refrigeration equipment 100 provided in this application, by setting a fixed bracket 4, the multiple tube sections 212 of the heat exchange tube group 21 distributed laterally in the same layer can be positioned and supported, which can improve the stability of the spacing between adjacent tube sections of the heat exchange tube group 21 distributed laterally, thereby improving the uniformity of the heat exchange temperature of the heat exchange tube group 21. At the same time, since the fixed bracket 4 can be mass-produced, by setting the fixed bracket 4, the heat exchange tube groups 21 in multiple mass-produced refrigeration equipment 100 of the same model can be located in a predetermined position, thereby improving the consistency of performance during prototype mass production, improving the pass rate of prototype cooling speed and depth, and thus improving the stability of the refrigeration system 2.

[0294] As shown in Figures 1, 2 and 3, this application also provides a refrigeration device 100, including: an inner liner 1, a refrigeration system 2 and a support bracket 5.

[0295] The inner liner 1 forms a compartment; the refrigeration system 2 includes an evaporator 22 and a heat exchange tube assembly 21, the heat exchange tube assembly 21 includes a capillary tube 214, the evaporator 22 is wound around the outer side of the inner liner 1; the support bracket 5 supports the evaporator 22, the support bracket 5 is provided with an annular support position 512, and the capillary tube 214 is wound around the annular support position 512.

[0296] According to the refrigeration device 100 provided in the embodiments of this application, by setting a support bracket 5, which is used to position the capillary tube 214, the distance between the capillary tube 214 and the evaporator 22, the distance between the capillary tube 214 and the inner liner 1, and the distance between the capillary tube 214 and the outer shell 6 is limited, thereby reducing the influence of the temperature of the inner liner 1, the evaporator 22 and the outer shell 6 on the temperature of the capillary tube 214. Since the support bracket 5 can be mass-produced, by setting the support bracket 5, the capillary tube 214 in multiple mass-produced refrigeration devices 100 of the same model can be located in a predetermined position, thereby improving the consistency of performance during prototype mass production, improving the pass rate of prototype cooling speed and depth, and thus improving the stability of the refrigeration system 2.

[0297] As shown in Figure 24, in some embodiments, the refrigeration system of this application includes a compressor 23, a condenser 24, a first heat exchange tube 251 of a heat exchanger 25, a first path 261 of a return gas pipe group 26, an evaporator 22, a second path 262 of the return gas pipe group 26, and a second heat exchange tube 252 of the heat exchanger 25, which are connected in sequence.

[0298] The compressor 23 outlet is connected to the condenser 24 inlet; the heat exchanger 25 includes a first heat exchange tube 251 and a second heat exchange tube 252, and the condenser 24 outlet is connected to the first heat exchange tube 251 inlet; the return gas pipe group 26 includes a first path 261 and a second path 262, and the first heat exchange tube 251 outlet is connected to the first path 261 inlet; the first path 261 outlet is connected to the evaporator 22 inlet, the evaporator 22 outlet is connected to the second path 262 inlet, the second path 262 outlet is connected to the second heat exchange tube 252 inlet, and the second heat exchange tube 252 outlet is connected to the compressor 23 inlet.

[0299] The refrigerant in the refrigeration system can be a mixed refrigerant. The high-boiling-point refrigerant in the mixed refrigerant can be any one of R600a, R600, R290, R1270, R1243zf, R1234yf, R1234ze, or R1150, and the low-boiling-point refrigerant can be one of R170, R1150, R23, or R14.

[0300] Among them, the first heat exchange tube 251 exchanges heat with the second heat exchange tube 252. The first heat exchange tube 251 is a high-temperature tube and the second heat exchange tube 252 is a low-temperature tube. The first path 261 exchanges heat with the second path 262.

[0301] In some embodiments, a drying filter is provided between the condenser 24 and the first heat exchange tube 251 of the heat exchanger 25. The drying filter is used to filter out moisture and impurities in the refrigerant entering the first heat exchange tube 251 of the heat exchanger 25.

[0302] In some embodiments, the first path 261 of the return gas pipe assembly 26 is a capillary tube, which is used for throttling and pressure reduction.

[0303] The working principle of the refrigeration system: The refrigerant is compressed into a high-temperature, high-pressure mixed refrigerant gas by the compressor 23. The mixed refrigerant gas enters the condenser 24 and is condensed into a two-phase (gas-liquid) binary mixed refrigerant. It then enters the dryer filter to filter out moisture and impurities. The two-phase (gas-liquid) binary mixed refrigerant enters the first heat exchange tube 251 of the heat exchanger 25. The first heat exchange tube 251 of the heat exchanger 25 exchanges heat with the second heat exchange tube 252 of the heat exchanger 25 for further condensation. The binary mixed refrigerant enters the capillary tube for throttling and pressure reduction, and exchanges heat with the second path 262 in the return gas pipe group 26, further cooling the binary mixed refrigerant. The refrigerant then enters the evaporator... After heat exchange in evaporator 22, a two-phase gas-liquid binary refrigerant mixture is formed. The mixed refrigerant at the outlet of evaporator 22 is in a two-phase gas-liquid state. This two-phase gas-liquid binary refrigerant undergoes heat exchange with the capillary tube through the second path 262 in the return gas pipe group 26, thereby cooling the refrigerant in the capillary tube. The outlet of the second path 262 in the return gas pipe group 26 is still in a two-phase gas-liquid state. The refrigerant enters the first heat exchange tube 251 of heat exchanger 25 and exchanges heat with the second heat exchange tube 252 of heat exchanger 25, causing the refrigerant in the first heat exchange tube 251 to cool down and condense. The outlet of the second heat exchange tube 252 is in a gaseous state. The gaseous refrigerant returns to compressor 23 to complete one cycle.

[0304] The pressure reduction principle of the refrigeration system: The heat exchanger 25 is composed of a first heat exchange tube 251 and a second heat exchange tube 252. High-temperature, high-pressure gas-liquid two-phase refrigerant enters the inlet of the first heat exchange tube 251 after exiting the condenser 24, and flows through the first heat exchange tube 251 into the capillary inlet. The refrigerant entering the second heat exchange tube 252 is a low-temperature, low-pressure gas-liquid two-phase refrigerant. Due to the temperature difference between the first and second heat exchange tubes 251 and 252, heat exchange occurs, resulting in a decrease in the temperature of the refrigerant in the first heat exchange tube 251 and an increase in the temperature of the refrigerant in the second heat exchange tube 252. The temperature of the refrigerant entering the first heat exchange tube 251 is above ambient temperature, while after heat exchange, the temperature of the refrigerant at the outlet of the first heat exchange tube 251 decreases significantly, ranging from +32°C to -10°C. The pressure and temperature of the refrigerant are positively correlated; the higher the temperature, the greater the pressure. Therefore, the discharge pressure of the refrigeration system of this application is significantly lower than that of a conventional single-stage compression refrigeration system.

[0305] In related technologies, conventional single-stage compression refrigeration systems do not have a heat exchanger 25, and typically only have a return gas pipe assembly 26. For cryogenic cabinets, the steady-state pressure from the compressor outlet 23 to the capillary inlet of a conventional single-stage compression refrigeration system is 2.2–2.4 MPa. The steady-state pressure from the compressor outlet 23 to the capillary inlet of the refrigeration system in this application is ≤1.6 MPa, a pressure reduction of nearly 1 / 3.

[0306] The refrigeration system of this application, by setting up a heat exchanger 25 and a return gas pipe group 26, allows the refrigerant discharged from the condenser 24 to first exchange heat at the heat exchanger 25, thereby reducing the temperature of the refrigerant. Then, through the throttling and pressure reduction effect of the capillary tube of the return gas pipe group 26, it enters the evaporator 22 for further heat exchange, thereby improving the refrigeration effect, reducing the discharge pressure of the refrigeration system in steady state, and reducing the noise of the whole machine.

[0307] In some embodiments, the ratio M of the internal volume of the heat exchanger 25 to the internal volume of the evaporator 22 satisfies: 20% ≤ M ≤ 45%, and the ratio N of the internal volume of the condenser 24 to the internal volume of the heat exchanger 25 satisfies: 20% ≤ N ≤ 54%.

[0308] The internal volume of heat exchanger 25 is the sum of the internal volumes of the first heat exchange tube 251 and the second heat exchange tube 252 of heat exchanger 25. The ratio M of the internal volume of heat exchanger 25 to the internal volume of evaporator 22 can be 20%, 25%, 30%, 35% or 45%, which can be determined based on the thermodynamic calculation and test of the refrigeration system.

[0309] In related technologies, in conventional single-stage compression refrigeration systems, the refrigerant exits the condenser 24 and directly enters the evaporator 22 for heat exchange through a capillary tube with throttling and pressure reduction. However, in the refrigeration system provided in this application, the refrigerant exits the condenser 24 and first undergoes heat exchange at the heat exchanger 25, losing some of its cooling capacity, before entering the evaporator 22 for heat exchange through the capillary tube with throttling and pressure reduction.

[0310] Based on the thermodynamic calculations and experimental tests of the refrigeration system, the relationship between the heat exchanger 25 and the evaporator 22 is matched. The ratio M of the internal volume of the heat exchanger 25 to the internal volume of the evaporator 22 is set in the range of 20% to 45%. This can increase the cooling capacity of the refrigeration system to meet the cooling requirements of the refrigeration equipment 100, while also reducing the exhaust pressure under steady state and reducing the noise of the whole machine.

[0311] The ratio N of the internal volume of the condenser 24 to the internal volume of the heat exchanger 25 can be 20%, 25%, 30%, 35%, 40% or 54%, and the specific ratio can be determined based on the thermodynamic calculation and test of the refrigeration system.

[0312] In this embodiment, the condenser 24 serves as a heat dissipation device for the refrigeration system. Simultaneously, the condenser 24 also plays a role in reducing pressure. The length of the condenser 24 piping and its heat dissipation area determine the peak pressure of the compressor 23 during startup. The length of the condenser 24 piping and its heat dissipation area can be measured by their internal volume. There is a certain quantitative relationship between the internal volume of the condenser 24 and the internal volume of the heat exchanger 25.

[0313] It should be noted that if the internal volume of the condenser 24 is too small, it will result in poor heat dissipation, leading to excessive peak starting pressure and steady-state discharge pressure of the compressor 23; if the condenser 24 is too large, it will result in a waste of resources.

[0314] In this embodiment, the relationship between the heat exchanger 25 and the condenser 24 is matched, and the ratio N of the internal volume of the condenser 24 to the internal volume of the heat exchanger 25 is set to a range of 20% to 54%. This can meet the heat dissipation requirements of the condenser 24, make reasonable use of resources, and at the same time reduce the peak starting pressure of the compressor 23 and the discharge pressure during steady state.

[0315] In some embodiments, the ratio N of the internal volume of the condenser 24 to the internal volume of the heat exchanger 25 satisfies: 20% ≤ N ≤ 54%.

[0316] The ratio N of the internal volume of the condenser 24 to the internal volume of the heat exchanger 25 can be 20%, 25%, 30%, 35%, 40% or 54%, and the specific ratio can be determined based on the thermodynamic calculation and test of the refrigeration system.

[0317] In this embodiment, the condenser 24 serves as a heat dissipation device for the refrigeration system. Simultaneously, the condenser 24 also plays a role in reducing pressure. The length of the condenser 24 piping and its heat dissipation area determine the peak pressure of the compressor 23 during startup. The length of the condenser 24 piping and its heat dissipation area can be measured by their internal volume. There is a certain quantitative relationship between the internal volume of the condenser 24 and the internal volume of the heat exchanger 25.

[0318] It should be noted that if the internal volume of the condenser 24 is too small, it will result in poor heat dissipation, leading to excessive peak starting pressure and steady-state discharge pressure of the compressor 23; if the condenser 24 is too large, it will result in a waste of resources.

[0319] In this embodiment, the relationship between the heat exchanger 25 and the condenser 24 is matched, and the ratio N of the internal volume of the condenser 24 to the internal volume of the heat exchanger 25 is set to a range of 20% to 54%. This can meet the heat dissipation requirements of the condenser 24, make reasonable use of resources, and at the same time reduce the peak starting pressure of the compressor 23 and the discharge pressure during steady state.

[0320] In some embodiments, the ratio M of the internal volume of the heat exchanger 25 to the internal volume of the evaporator 22 satisfies: 20% ≤ M ≤ 45%.

[0321] The internal volume of heat exchanger 25 is the sum of the internal volumes of the first heat exchange tube 251 and the second heat exchange tube 252 of heat exchanger 25. The ratio M of the internal volume of heat exchanger 25 to the internal volume of evaporator 22 can be 20%, 25%, 30%, 35% or 45%, which can be determined based on the thermodynamic calculation and test of the refrigeration system.

[0322] In related technologies, in conventional single-stage compression refrigeration systems, the refrigerant exits the condenser 24 and directly enters the evaporator 22 for heat exchange through a capillary tube with throttling and pressure reduction. However, in the refrigeration system provided in this application, the refrigerant exits the condenser 24 and first undergoes heat exchange at the heat exchanger 25, losing some of its cooling capacity, before entering the evaporator 22 for heat exchange through the capillary tube with throttling and pressure reduction.

[0323] Based on the thermodynamic calculations and experimental tests of the refrigeration system, the relationship between the heat exchanger 25 and the evaporator 22 is matched. The ratio M of the internal volume of the heat exchanger 25 to the internal volume of the evaporator 22 is set in the range of 20% to 45%. This can increase the cooling capacity of the refrigeration system to meet the cooling requirements of the refrigeration equipment 100, while also reducing the exhaust pressure under steady state and reducing the noise of the whole machine.

[0324] In some embodiments, the heat exchanger 25 is adapted to be installed on the side of the refrigeration equipment 100, and the inlet of the first heat exchange tube 251 is higher than the outlet of the first heat exchange tube 251 in the height direction.

[0325] The heat exchanger 25 can be installed on at least one of the back, left and right sides of the refrigeration equipment 100.

[0326] Since the first heat exchange tube 251 of the heat exchanger 25 is a high-temperature tube, the refrigerant is in a gas-liquid two-phase state in the first heat exchange tube 251 of the heat exchanger 25. The first heat exchange tube 251 of the heat exchanger 25 adopts an upper-in and lower-out method, with the refrigerant entering from the top and exiting from the bottom along the height direction. By taking into account the flow direction of the liquid refrigerant, the amount of gaseous refrigerant discharged from the first heat exchange tube 251 of the heat exchanger 25 can be reduced.

[0327] In some embodiments, the heat exchanger 25 is adapted to be installed on the bottom surface of the refrigeration equipment 100, which can disregard the flow direction of the liquid refrigerant, thereby improving the flexibility of the piping arrangement.

[0328] In some embodiments, the wall of the first heat exchange tube 251 is provided with a first contact surface 2511, and the wall of the second heat exchange tube 252 is provided with a second contact surface 2521. The first contact surface 2511 and the second contact surface 2521 form a surface contact, and the first heat exchange tube 251 and the second heat exchange tube 252 exchange heat through the first contact surface 2511 and the second contact surface 2521.

[0329] As shown in Figures 26-29, the first heat exchange tube 251 has a first contact surface 2511 on its tube wall, and the second heat exchange tube 252 has a second contact surface 2521 on its tube wall. The first contact surface 2511 and the second contact surface 2521 form a surface contact, and the first heat exchange tube 251 and the second heat exchange tube 252 exchange heat through the first contact surface 2511 and the second contact surface 2521.

[0330] In this embodiment, the surface contact between the first heat exchange tube 251 and the second heat exchange tube 252 can increase the heat exchange area between the first heat exchange tube 251 and the second heat exchange tube 252, thereby improving the heat exchange efficiency between the first heat exchange tube 251 and the second heat exchange tube 252, improving the heat exchange effect of the heat exchanger 25, thereby improving the working efficiency of the compressor 23 and improving the refrigeration efficiency of the refrigeration system.

[0331] The first contact surface 2511 and the second contact surface 2521 extend in the same direction to form a surface contact.

[0332] According to the heat exchanger 25 provided in this application, by setting the first heat exchange tube 251 and the second heat exchange tube 252 of the heat exchanger 25 to surface contact, the first heat exchange tube 251 and the second heat exchange tube 252 exchange heat through the first contact surface 2511 and the second contact surface 2521, which can increase the heat exchange area, improve the heat exchange efficiency, and increase the pressure reduction speed.

[0333] The surface contact between the first heat exchange tube 251 and the second heat exchange tube 252 includes at least the following four structural designs.

[0334] Firstly, as shown in Figures 25-28, both the first contact surface 2511 and the second contact surface 2521 are planar. The first heat exchange tube 251 and the second heat exchange tube 252 exchange heat through the surface contact formed by the planar first contact surface 2511 and the second contact surface 2521, which can reduce the installation difficulty and increase the heat exchange area.

[0335] The first heat exchange tube 251 and the second heat exchange tube 252 may have the same or different structures. If the first heat exchange tube 251 and the second heat exchange tube 252 have the same structure, the structure of the first heat exchange tube 251 and the second heat exchange tube 252 may include at least the following forms:

[0336] First, as shown in Figure 25, both the first heat exchange tube 251 and the second heat exchange tube 252 can be flat tubes, and the side wall of the first heat exchange tube 251 and the side wall of the second heat exchange tube 252 form a surface contact.

[0337] The walls of the first heat exchange tube 251 and the second heat exchange tube 252 each include two first arc-shaped segments 2522 and two first straight segments 2524. The two first arc-shaped segments 2522 and the two first straight segments 2524 are alternately arranged and connected end to end in sequence. One of the two first straight segments 2524 of the first heat exchange tube 251 is a first contact surface 2511, and one of the two first straight segments 2524 of the second heat exchange tube 252 is a second contact surface 2521.

[0338] The flat tube has a first arc-shaped surface at both ends and a first straight surface between the first arc-shaped surfaces. The first straight surface is located on both sides of the first heat exchange tube 251 and the second heat exchange tube 252, and the first straight surface of the first heat exchange tube 251 and the second heat exchange tube 252 are in contact for heat exchange.

[0339] Second, as shown in Figure 26, both the first heat exchange tube 251 and the second heat exchange tube 252 can be irregularly shaped tubes.

[0340] The first heat exchange tube 251 and the second heat exchange tube 252 each include a second arc-shaped section 2523 and a second straight section 2525 for sealing the second arc-shaped section 2523. The second straight section 2525 of the first heat exchange tube 251 is a first contact surface 2511, and one of the second straight sections 2525 of the second heat exchange tube 252 is a second contact surface 2521.

[0341] For example, as shown in Figure 27, the walls of the first heat exchange tube 251 and the second heat exchange tube 252 both include a second arc-shaped segment 2523 and a second straight segment 2525. The second straight segment 2525 of the first heat exchange tube 251 and the second straight segment 2525 of the second heat exchange tube 252 form a surface contact, which can both increase the volume of the first heat exchange tube 251 and the second heat exchange tube 252 and increase the heat exchange area by forming a surface contact.

[0342] Third, both the first heat exchange tube 251 and the second heat exchange tube 252 include multiple third straight sections 2526, which are connected end to end in sequence. One of the multiple third straight sections 2526 of the first heat exchange tube 251 is a first contact surface 2511, and one of the multiple third straight sections 2526 of the second heat exchange tube 252 is a second contact surface 2521.

[0343] For example, as shown in FIG28, the first heat exchange tube 251 and the second heat exchange tube 252 can both be plate heat exchange tubes, and the side walls of the first heat exchange tube 251 and the second heat exchange tube 252 form a surface contact.

[0344] The plate heat exchanger tube has four third straight sections 2526, all of which are planar. The third straight sections 2526 of the first heat exchanger tube 251 and the second heat exchanger tube 252 form surface contact. The areas of the four third straight sections 2526 of the plate heat exchanger tube can be the same, and any third straight section 2526 of the first heat exchanger tube 251 and the second heat exchanger tube 252 can be connected to form surface contact; or, the area of ​​the third straight section 2526 on one opposite side of the plate heat exchanger tube is larger than the area of ​​the third straight section 2526 on the other opposite side, and the third straight section 2526 with the larger area in the first heat exchanger tube 251 and the second heat exchanger tube 252 can be connected to form surface contact.

[0345] When the structures of the first heat exchange tube 251 and the second heat exchange tube 252 are different, both the first heat exchange tube 251 and the second heat exchange tube 252 include at least one straight section, and the straight section of the first heat exchange tube 251 and the straight section of the second heat exchange tube 252 are connected to form a surface contact.

[0346] Secondly, as shown in Figure 29, both the first contact surface 2511 and the second contact surface 2521 are curved surfaces.

[0347] For example, as shown in Figure 30, the first heat exchange tube 251 can be a circular tube structure, and as shown in Figure 31, the second heat exchange tube 252 can be a circular tube structure with a partially concave arc surface. The first heat exchange tube 251 and the second heat exchange tube 252 are fitted together with the partially concave arc surface to increase the heat exchange area and reduce the installation difficulty.

[0348] The diameters of the first heat exchange tube 251 and the second heat exchange tube 252 can be the same or different, and both can achieve the effect of arc-shaped surface contact.

[0349] In some embodiments, the curvature centers of the first contact surface 2511 and the second contact surface 2521 are located on the same side to form a fitting arc-shaped surface contact structure.

[0350] The curvature center of the first contact surface 2511 and the center of the first heat exchange tube 251 are located on the same side of the first contact surface 2511, while the curvature center of the second contact surface 2521 and the center of the second heat exchange tube 252 are located on opposite sides of the second contact surface 2521. The first contact surface 2511 and the second contact surface 2521 are fitted together, increasing the heat exchange area between the first heat exchange tube 251 and the second heat exchange tube 252, thereby improving the heat exchange effect.

[0351] In some embodiments, as shown in FIG29, the curvature centers of the first contact surface 2511 and the second contact surface 2521 are arranged to coincide, so as to better achieve surface contact between the first contact surface 2511 and the second contact surface 2521, thereby further increasing the heat exchange area between the first heat exchange tube 251 and the second heat exchange tube 252 and improving the heat exchange effect.

[0352] For example, as shown in Figures 30 and 31, the first heat exchange tube 251 can be a round tube, and the second heat exchange tube 252 can be a shaped tube adapted to the first heat exchange tube 251, with a portion of the shaped tube forming an arc surface that contacts the side wall of the round tube.

[0353] Third, both the first contact surface 2511 and the second contact surface 2521 are wavy.

[0354] The wavy shape of the first contact surface 2511 and the wavy shape of the second contact surface 2521 match, further increasing the heat exchange area between the first heat exchange tube 251 and the second heat exchange tube 252, and improving the heat exchange effect.

[0355] Fourth, both the first contact surface 2511 and the second contact surface 2521 are polygonal.

[0356] Both the first contact surface 2511 and the second contact surface 2521 include multiple sequentially connected and bent fourth straight segments. The multiple fourth straight segments of the first contact surface 2511 and the multiple fourth straight segments of the second contact surface 2521 form an interlocking structure. The fourth straight segments of the first contact surface 2511 and the corresponding fourth straight segments of the second contact surface 2521 form surface contact, thereby further increasing the heat exchange area between the first heat exchange tube 251 and the second heat exchange tube 252 and improving the heat exchange effect.

[0357] Secondly, this application also provides a heat exchanger 25, which includes: a first heat exchange tube 251 and a second heat exchange tube 252. One end of the first heat exchange tube 251 is connected to the outlet of the condenser 24 of the refrigeration system, and the other end of the first heat exchange tube 251 is connected to the inlet of the evaporator 22 of the refrigeration system. One end of the second heat exchange tube 252 is connected to the inlet of the compressor 23 of the refrigeration system, and the other end of the second heat exchange tube 252 is connected to the outlet of the evaporator 22 of the refrigeration system.

[0358] The first heat exchange tube 251 has a first contact surface 2511 on its tube wall, and the second heat exchange tube 252 has a second contact surface 2521 on its tube wall. The first contact surface 2511 and the second contact surface 2521 form a surface contact, and the first heat exchange tube 251 and the second heat exchange tube 252 exchange heat through the first contact surface 2511 and the second contact surface 2521.

[0359] According to the heat exchanger 25 provided in this application, by setting the surface contact between the first heat exchange tube 251 and the second heat exchange tube 252, the heat exchange area between the first heat exchange tube 251 and the second heat exchange tube 252 can be increased, thereby improving the heat exchange efficiency between the first heat exchange tube 251 and the second heat exchange tube 252, improving the heat exchange effect of the heat exchanger 25, thereby improving the working efficiency of the compressor 23 and improving the refrigeration efficiency of the refrigeration system.

[0360] In some embodiments, as shown in FIG32, the refrigeration system of this application embodiment includes a compressor 23, a condenser 24, a first heat exchange tube 251 of a heat exchanger 25, a first path 261 of a return gas pipe group 26, an evaporator 22, a second path 262 of a return gas pipe group 26, and a second heat exchange tube 252 of a heat exchanger 25, which are formed by the same heat exchange pipe 216.

[0361] The second path 262 of the return gas pipe group 26 and the second heat exchange tube 252 of the heat exchanger 25 share a heat exchange pipe 216. The heat exchange pipe 216 can be bent and extended to form the second path 262 of the return gas pipe group 26 and the second heat exchange tube 252 of the heat exchanger 25.

[0362] The compressor 23 outlet is connected to the condenser 24 inlet; the heat exchanger 25 includes a first heat exchange tube 251 and a second heat exchange tube 252, and the condenser 24 outlet is connected to the first heat exchange tube 251 inlet; the return gas pipe group 26 includes a first path 261 and a second path 262, and the first heat exchange tube 251 outlet is connected to the first path 261 inlet; the first path 261 outlet is connected to the evaporator 22 inlet, the evaporator 22 outlet is connected to the second path 262 inlet, the second path 262 outlet is connected to the second heat exchange tube 252 inlet, and the second heat exchange tube 252 outlet is connected to the compressor 23 inlet.

[0363] It should be noted that the heat exchanger 25 and the return gas pipe assembly 26 are two refrigeration components at the refrigeration system level. The heat exchanger 25 consists of a first heat exchange tube 251 (high-temperature tube) and a second heat exchange tube 252 (low-temperature tube), while the return gas pipe assembly consists of a first path 261 (capillary tube) and a second path 262 (return gas pipe). In related technologies, if the structure connecting the heat exchanger 25 and the return gas pipe assembly 26 is used, the connecting pipes between the heat exchanger 25 and the return gas pipe assembly 26 are generally welded. This results in a complex process and is prone to refrigerant leakage, leading to poor refrigeration and substandard refrigeration temperature. Furthermore, since the heat exchanger 25 and the return gas pipe assembly 26 are installed separately within the foaming layer, they are prone to tilting, which can cause condensation in the refrigeration equipment 100.

[0364] The first heat exchange tube 251 of the heat exchanger 25 and the first line 261 of the return gas pipe group 26 can be welded together to form an integral unit, thereby integrating the heat exchanger 25 and the return gas pipe group 26. This allows the heat exchanger 25 and the return gas pipe group 26 to be installed together outside the inner liner 1, reducing the tilting of the heat exchanger 25 and the return gas pipe group 26, improving the stability of their positions, and reducing condensation caused by tilting.

[0365] According to the refrigeration system provided in this application, by setting the second path 262 of the return gas pipe group 26 and the second heat exchange tube 252 of the heat exchanger 25 to be formed by the same heat exchange pipe 216, the process can be simplified, the risk of refrigerant leakage can be reduced, and the reliability and safety of the refrigeration system can be improved.

[0366] In some embodiments, as shown in FIG32, the heat exchange pipe 216 includes a serpentine pipe section extending along a first direction, a first heat exchange pipe 251 extending along a portion of the serpentine pipe section, and a first path 261 extending along another portion of the serpentine pipe section.

[0367] Among them, the first heat exchange tube 251 and the first path 261 extend in the same direction as the corresponding part of the heat exchange tube 216.

[0368] The first direction can be the height direction of the refrigeration equipment 100, or the width or length direction of the refrigeration equipment 100. When the heat exchange pipe 216 is provided on the side of the refrigeration equipment 100, the first direction is the height direction of the refrigeration equipment 100; when the heat exchange pipe 216 is provided on the bottom surface of the refrigeration equipment 100, the first direction can be the length direction of the refrigeration equipment 100.

[0369] In this embodiment, the first heat exchange tube 251, the first path 261, and the heat exchange pipeline 216 are configured in a serpentine bend and extension shape, which can increase the heat exchange length and heat exchange area between the first heat exchange tube 251 and the heat exchange pipeline 216, as well as between the first path 261 and the heat exchange pipeline 216, thereby improving the heat exchange efficiency.

[0370] In some embodiments, as shown in FIG32, the heat exchange pipeline 216 includes a first serpentine section 2161 and a second serpentine section 2162 arranged and connected along a first direction. The outlet of the first serpentine section 2161 is connected to the inlet of the compressor 23, and the inlet of the second serpentine section 2162 is connected to the outlet of the evaporator 22. The first heat exchange tube 251 extends along the extension direction of the first serpentine section 2161 and at least partially extends to the second serpentine section 2162. The first path 261 extends along the extension direction of the second serpentine section 2162.

[0371] The second heat exchange tube 252 of the heat exchanger 25 includes a first serpentine section 2161, and the second path 262 of the return gas pipe group 26 includes a second serpentine section 2162.

[0372] In this embodiment, as shown in FIG33, the second heat exchange tube 252 formed by the first heat exchange tube 251 and the heat exchange pipe 216 is set in a serpentine extension shape, which can increase the heat exchange length and heat exchange area of ​​the first heat exchange tube 251 and the heat exchange pipe 216, thereby improving the heat exchange efficiency; the second path 262 formed by the first path 261 and the heat exchange pipe 216 is set in a serpentine extension shape, which can increase the heat exchange length and heat exchange area of ​​the first path 261 and the heat exchange pipe 216, thereby improving the heat exchange efficiency, and thus improving the refrigeration efficiency of the refrigeration system.

[0373] The first serpentine segment 2161 is longer than the second serpentine segment 2162 in the second direction. The second serpentine segment 2162 is shorter in the second direction, which allows it to avoid the cabin 601.

[0374] Wherein, the first direction is perpendicular to the second direction. When the heat exchange pipe 216 is set on the side of the refrigeration equipment 100, the first direction is the height direction of the refrigeration equipment 100 and the second direction is the left and right direction of the refrigeration equipment 100. When the heat exchange pipe 216 is set on the bottom surface of the refrigeration equipment 100, the first direction can be the length direction of the refrigeration equipment 100 and the second direction is the front and back direction of the refrigeration equipment 100.

[0375] In some embodiments, as shown in FIG32, the first heat exchange tube 251 of the heat exchanger 25 and the first path 261 of the return gas pipe group 26 are distributed along the third direction with the heat exchange pipe 216 to reduce the difficulty of processing and assembly.

[0376] Among them, the third direction, the first direction, and the second direction are perpendicular to each other.

[0377] When the heat exchange pipe 216 is installed on the side of the refrigeration equipment 100, the first direction is the height direction of the refrigeration equipment 100, the second direction is the left-right direction of the refrigeration equipment 100, and the third direction is the front-back direction of the refrigeration equipment 100; when the heat exchange pipe 216 is installed on the bottom surface of the refrigeration equipment 100, the first direction can be the length direction of the refrigeration equipment 100, the second direction is the front-back direction of the refrigeration equipment 100, and the third direction is the height direction of the refrigeration equipment 100.

[0378] In some embodiments, as shown in FIG34, the refrigeration device 100 includes an inner liner 1 and an outer shell 6. Along the distribution direction of the inner liner 1 and the outer shell 6, the evaporator 22, the second heat exchange tube 252 and the first heat exchange tube 251 are arranged sequentially, and the temperatures of the evaporator 22, the second heat exchange tube 252 and the first heat exchange tube 251 increase progressively.

[0379] Among them, the evaporator 22 is wrapped around the outer wall of the inner liner 1, and the temperature of the evaporator 22 is the lowest; the second heat exchange tube 252 is located near the temperature of the evaporator 22, and the temperature of the second heat exchange tube 252 is higher than the temperature of the evaporator 22; the first heat exchange tube 251 is located near the outer shell 6, and the temperature of the first heat exchange tube 251 is higher than the temperature of the second heat exchange tube 252; the temperature outside the outer shell 6 is the ambient temperature.

[0380] For example, the average temperature of evaporator 22 can be -70°C, the average temperature of the second heat exchange tube 252 of heat exchanger 25 can be -50°C, the average temperature of the first heat exchange tube 251 of heat exchanger 25 can be 18°C, and the ambient temperature can be 32°C.

[0381] Therefore, the position of the heat exchanger 25 is related to whether the refrigeration system meets the cooling capacity of the freezer.

[0382] In this embodiment, by arranging the evaporator 22, the second heat exchange tube 252 and the first heat exchange tube 251 sequentially along the distribution direction of the inner liner 1 and the outer shell 6 to form a temperature gradient, the heat exchange between the evaporator 22 and the first heat exchange tube 251, and between the second heat exchange tube 252 and the ambient temperature, can be reduced, heat dissipation can be reduced, and the cooling effect can be improved.

[0383] In some embodiments, as shown in FIG34, the distance L1 between the evaporator 22 and the second heat exchange tube 252 satisfies: L1 > 15 mm; the distance L2 between the first heat exchange tube 251 and the outer wall of the outer casing 6 satisfies: L2 > 45 mm.

[0384] The distance L1 between the evaporator 22 and the second heat exchange tube 252 can be 16mm, 20mm, 25mm, 30mm or greater, to reduce the heat exchange between the evaporator 22 and the second heat exchange tube 252; the distance L2 between the first heat exchange tube 251 and the outer wall of the outer casing 6 can be 46mm, 50mm, 65mm or greater, to reduce the heat exchange between the first heat exchange tube 251 and the ambient temperature.

[0385] In this embodiment, by setting the distance between the evaporator 22 and the second heat exchange tube 252 and the distance between the first heat exchange tube 251 and the outer wall of the outer casing 6, the heat exchange between the evaporator 22 and the first heat exchange tube 251 and between the second heat exchange tube 252 and the ambient temperature can be reduced, thereby reducing heat dissipation and improving the cooling effect.

[0386] In some embodiments, the distance L2 between the first heat exchange tube 251 and the outer wall of the housing 6 satisfies: L2 > 45 mm.

[0387] The distance L2 between the first heat exchange tube 251 and the outer wall of the outer casing 6 can be 46mm, 50mm, 65mm or larger, in order to reduce the heat exchange between the first heat exchange tube 251 and the ambient temperature.

[0388] In some embodiments, the distance L1 between the evaporator 22 and the second heat exchange tube 252 satisfies: L1 > 15 mm.

[0389] The distance L1 between the evaporator 22 and the second heat exchange tube 252 can be 16mm, 20mm, 25mm, 30mm or larger, in order to reduce the heat exchange between the evaporator 22 and the second heat exchange tube 252.

[0390] Secondly, this application also provides a refrigeration device 100, including the refrigeration system in any of the above embodiments.

[0391] According to the refrigeration device 100 provided in this application, by setting the refrigeration system in any of the above embodiments, the exhaust pressure of the refrigeration system during stable operation can be reduced, and the noise of the whole machine can be reduced.

[0392] In some embodiments, as shown in Figures 35 and 36, the refrigeration device 100 includes an inner tank 1, a heat exchanger 25 disposed on the side of the inner tank 1 along the height direction, and the inlet of the first heat exchange tube 251 is higher than the outlet of the first heat exchange tube 251 along the height direction.

[0393] The heat exchanger 25 can be installed between the side of the refrigeration equipment 100 and the side of the inner liner 1. For example, the heat exchanger 25 can be installed on at least one of the back, left and right sides of the inner liner 1.

[0394] Since the first heat exchange tube 251 of the heat exchanger 25 is a high-temperature tube, the refrigerant is in a gas-liquid two-phase state in the first heat exchange tube 251 of the heat exchanger 25. The first heat exchange tube 251 of the heat exchanger 25 adopts an upper-in and lower-out method, with the refrigerant entering from the top and exiting from the bottom along the height direction. By taking into account the flow direction of the liquid refrigerant, the amount of gaseous refrigerant discharged from the first heat exchange tube 251 of the heat exchanger 25 can be reduced.

[0395] In some embodiments, as shown in FIG37, the heat exchanger 25 is adapted to be installed on the bottom surface of the refrigeration equipment 100, which can disregard the flow direction of the liquid refrigerant, thereby improving the flexibility of the pipeline layout.

[0396] In some embodiments, as shown in FIG38, the refrigeration device 100 further includes a cabin 601 and a shell 6, both the inner liner 1 and the cabin 601 are disposed inside the shell 6, and the heat exchanger 25 is disposed between the inner liner 1 and the cabin 601 and is attached to the outer wall of the cabin 601.

[0397] In this embodiment, the heat exchanger 25 can be installed between the inner liner 1 and the engine compartment 601. The heat exchanger 25 can be pre-embedded between the inner liner 1 and the engine compartment 601, and then filled with insulation material. The insulation material can be foam material. The insulation material can have a heat preservation effect on the heat exchanger 25, reduce the heat exchange between the heat exchanger 25 and the outside, and improve the heat exchange effect of the first heat exchange tube 251 and the second heat exchange tube 252 of the heat exchanger 25.

[0398] In some embodiments, an insulation layer 7 is provided between the inner liner 1 and the cabin 601, and the ratio Q of the thickness of the insulation layer 7 to the height of the cabin 601 satisfies: 0.4≤Q≤1.

[0399] The ratio Q of the thickness of the insulation layer 7 to the height of the cabin 601 can be 0.4, 0.6, 0.7, 0.9 or 1. By increasing the thickness of the insulation layer 7, the phenomenon of condensation at the location where the heat exchanger 25 of the refrigeration equipment 100 is installed can be reduced.

[0400] This application also provides an assembly method for a refrigeration device 100, comprising: a refrigeration system of the refrigeration device 100 including a heat exchange tube assembly 21, wherein the heat exchange tube assembly 21 is arranged in multiple layers along the thickness direction in at least a partial area; a mounting bracket assembly of the refrigeration device 100 forming a plurality of mounting positions 322, the plurality of mounting positions 322 including multiple sets arranged at intervals along the thickness direction, each set for fixing one layer of heat exchange tube assembly 21; a housing of the refrigeration device 100 forming a compartment, wherein the refrigeration system and the mounting bracket assembly are both installed in the housing, the housing including an inner liner 1 and an outer shell 6; the assembly method includes:

[0401] Step 1: Assemble the mounting bracket assembly onto the heat exchange tube assembly 21.

[0402] The mounting bracket assembly can be assembled with the heat exchange tube assembly 21 through at least one or more connection methods such as snap-fit, abutment, and clamping.

[0403] Step 2: Assemble the heat exchange tube assembly 21 with the mounting bracket assembly into the inner tank 1.

[0404] The mounting bracket assembly can be connected to the inner liner 1 so that the heat exchange tube assembly 21 equipped with the mounting bracket assembly is fixed to the inner liner 1, and the heat exchange tube assembly 21 equipped with the mounting bracket assembly can be sleeved on the outside of the inner liner 1.

[0405] For example, the mounting bracket assembly can be connected to the inner liner 1 by at least one or more methods such as snap-fit, abutment, and threaded connection.

[0406] In some embodiments, the inner liner 1 has an opening 11, and the mounting bracket assembly is connected to the opening 11.

[0407] The refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, and the mounting bracket assembly can be connected to the upper end of the inner liner 1. When the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, and the mounting bracket assembly can be connected to the front end of the inner liner 1.

[0408] In some embodiments, the inner liner 1 has an opening 11, and a first connector is provided on the side wall of the inner liner 1 away from the opening 11. The mounting bracket assembly is connected to the first connector of the opening 11.

[0409] The mounting bracket assembly can be connected to the first connector by one or more of the following methods: snap-fit, welding, abutment, screwing, and plugging. For example, the first connector can be an extension or a retaining ring, and the mounting bracket assembly snaps into the first connector.

[0410] The refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, the first connecting member is located at the bottom of the inner liner 1, and the mounting bracket assembly can be connected to the first connecting member at the bottom of the inner liner 1. When the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, the first connecting member is located at the rear end of the inner liner 1, and the mounting bracket assembly can be connected to the first connecting member at the rear end of the inner liner 1.

[0411] Step 3: Assemble the inner liner 1, which is equipped with the heat exchange tube assembly 21 and the mounting bracket assembly, onto the outer shell 6.

[0412] The inner liner 1, which is equipped with heat exchange tube assembly 21 and mounting bracket assembly, is placed inside the outer shell 6, forming a gap between the outer shell 6 and the inner liner 1. The heat exchange tube assembly 21 equipped with mounting bracket assembly is located between the outer shell 6 and the inner liner 1.

[0413] Step 4: Foaming is performed between the outer shell 6 and the inner liner 1.

[0414] According to the assembly method of the refrigeration equipment 100 provided in the embodiments of this application, the inner liner 1, outer shell 6, heat exchange tube assembly 21 and mounting bracket assembly are assembled through the above steps, which can increase the flexibility of assembly and reduce the assembly difficulty.

[0415] This application also provides an assembly method for a refrigeration device 100, comprising: a refrigeration system of the refrigeration device 100 including a heat exchange tube assembly 21, wherein the heat exchange tube assembly 21 is arranged in multiple layers along the thickness direction in at least a partial area; a mounting bracket assembly of the refrigeration device 100 forming a plurality of mounting positions 322, the plurality of mounting positions 322 including multiple sets arranged at intervals along the thickness direction, each set for fixing one layer of heat exchange tube assembly 21; a housing of the refrigeration device 100 forming a compartment, wherein the refrigeration system and the mounting bracket assembly are both installed in the housing, the housing including an inner liner 1 and an outer shell 6; the assembly method includes:

[0416] Step 1: Assemble the heat exchange tube assembly 21 onto the outer casing 6.

[0417] The heat exchange tube assembly 21 is placed inside the outer casing 6 and is spaced apart from the outer casing 6.

[0418] Step 2: Assemble the mounting bracket assembly onto the heat exchange tube assembly 21.

[0419] The mounting bracket assembly can be assembled with the heat exchange tube assembly 21 through at least one or more connection methods such as snap-fit, abutment, and clamping.

[0420] The mounting bracket assembly can be connected to the outer casing 6 to fix the heat exchange tube assembly 21 equipped with the mounting bracket assembly to the outer casing 6.

[0421] In some embodiments, the inner liner 1 has an opening 11, and step 1, assembling the heat exchange tube assembly 21 onto the outer shell 6, includes:

[0422] The heat exchange tube assembly 21 is assembled inside the outer casing 6 and connected to the side plate of the outer casing 6.

[0423] In this step, the refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the mounting bracket assembly is connected to any one or more of the four side plates of the outer casing 6 (front, back, left, and right). When the refrigeration equipment 100 is vertical, the mounting bracket assembly is connected to any one or more of the four side plates of the outer casing 6 (upper, lower, left, and right).

[0424] For example, as shown in Figures 20-23, the inner liner 1 has an opening 11, and the mounting bracket assembly can be connected to the end of the side plate of the outer shell 6 on the same side as the opening 11; or, the mounting bracket assembly can also be connected to the end of the side plate of the outer shell 6 away from the opening 11.

[0425] In some embodiments, the inner liner 1 has an opening 11, and step 1, assembling the heat exchange tube assembly 21 onto the outer shell 6, includes:

[0426] The heat exchange tube assembly 21 is assembled inside the outer casing 6 and connected to the plate of the outer casing 6 away from the opening 11.

[0427] The refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, and the mounting bracket is connected to the bottom plate of the outer shell 6. When the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, and the mounting bracket is connected to the rear plate of the outer shell 6.

[0428] In some embodiments, the inner liner 1 has an opening 11, and the outer shell 6 is assembled with a mounting bracket at the end on the same side as the opening 11.

[0429] The refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, and the mounting bracket assembly can be connected to the upper end of the outer shell 6. When the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, and the mounting bracket assembly can be connected to the front end of the outer shell 6.

[0430] In some embodiments, the inner liner 1 has an opening 11, and the outer shell 6 is provided with a second connector on the bottom plate opposite to the opening 11, and the mounting bracket assembly is connected to the second connector.

[0431] The second connector is located on the bottom plate of the outer casing 6, away from the opening 11.

[0432] The mounting bracket assembly can be connected to the second connector by one or more of the following methods: snap-fit, welding, abutment, screwing, and plugging. For example, the second connector can be an extension or a retaining ring, and the mounting bracket assembly snaps into the second connector.

[0433] The refrigeration equipment 100 can be horizontal or vertical. When the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, the second connector is set on the bottom wall plate of the outer shell 6, and the mounting bracket assembly can be connected to the second connector of the outer shell 6. Alternatively, the second connector is set at the bottom end of the side wall of the outer shell 6, and the mounting bracket assembly can be connected to the second connector of the outer shell 6. When the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, the second connector can be set on the rear wall panel of the outer shell 6, and the mounting bracket assembly can be connected to the second connector of the outer shell 6. Alternatively, the second connector is set at the rear end of the side wall of the outer shell 6, and the mounting bracket assembly can be connected to the second connector of the outer shell 6.

[0434] Step 3: Assemble the inner liner 1 into the outer shell 6, which is equipped with the heat exchange tube assembly 21 and the mounting bracket assembly.

[0435] The heat exchange tube assembly 21 equipped with the mounting bracket can be sleeved outside the inner liner 1, and a gap is formed between the outer shell 6 and the inner liner 1. The mounting bracket and the heat exchange tube assembly 21 are located between the outer shell 6 and the inner liner 1.

[0436] Step 4: Foaming is performed between the outer shell 6 and the inner liner 1.

[0437] According to the assembly method of the refrigeration equipment 100 provided in the embodiments of this application, the inner liner 1, outer shell 6, heat exchange tube assembly 21 and mounting bracket assembly are assembled through the above steps, which can increase the flexibility of assembly and reduce the assembly difficulty.

[0438] This application also provides an assembly method for a refrigeration device 100, comprising: a refrigeration system of the refrigeration device 100 including a heat exchange tube assembly 21, wherein the heat exchange tube assembly 21 is arranged in multiple layers along the thickness direction in at least a partial area; a mounting bracket assembly of the refrigeration device 100 forming a plurality of mounting positions 322, the plurality of mounting positions 322 including multiple sets arranged at intervals along the thickness direction, each set for fixing one layer of heat exchange tube assembly 21; a housing of the refrigeration device 100 forming a compartment, wherein the refrigeration system and the mounting bracket assembly are both installed in the housing, the housing including an inner liner 1 and an outer shell 6; the assembly method includes:

[0439] Step 1: Assemble the inner liner 1 into the outer shell 6.

[0440] A gap is formed between the outer shell 6 and the inner liner 1, and the outer shell 6 and the inner liner 1 can be connected and assembled by snap-fit, threaded connection or other means.

[0441] Step 2: Assemble the heat exchange tube assembly 21 with the mounting bracket assembly between the outer shell 6 and the inner liner 1.

[0442] During installation, the heat exchange tube assembly 21 and the mounting bracket assembly can be vertically lowered into the gap between the inner liner 1 and the outer shell 6 to complete the welding.

[0443] In some embodiments, the mounting bracket assembly may abut against the outer shell 6, or the mounting bracket assembly may abut against the inner liner 1; or the mounting bracket assembly may abut against both the outer shell 6 and the inner liner 1.

[0444] The heat exchange tube assembly 21 is spaced apart from the outer shell 6 to increase safety and reduce heat loss.

[0445] Step 3: Foaming is performed between the outer shell 6 and the inner liner 1.

[0446] According to the assembly method of the refrigeration equipment 100 provided in the embodiments of this application, the inner liner 1, outer shell 6, heat exchange tube assembly 21 and mounting bracket assembly are assembled through the above steps, which can increase the flexibility of assembly and reduce the assembly difficulty.

[0447] In some embodiments, the inner liner 1 of the refrigeration device 100 has an opening 11; assembling a heat exchange tube assembly 21 with a mounting bracket assembly between the outer shell 6 and the inner liner 1 includes: inserting the heat exchange tube assembly 21 with the mounting bracket assembly between the outer shell 6 and the inner liner 1 from the direction of the opening 11.

[0448] The refrigeration equipment 100 can be horizontal or vertical. As shown in Figure 20, when the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, and the heat exchange tube assembly 21 with the mounting bracket can be inserted from top to bottom between the inner liner 1 and the outer shell 6. As shown in Figure 22, when the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, and the heat exchange tube assembly 21 with the mounting bracket can be inserted from front to back between the inner liner 1 and the outer shell 6.

[0449] In some embodiments, as shown in Figures 20-23, the inner liner 1 of the refrigeration device 100 has an opening 11; assembling a heat exchange tube assembly 21 with a mounting bracket assembly between the outer shell 6 and the inner liner 1 includes: inserting the heat exchange tube assembly 21 with the mounting bracket assembly between the outer shell 6 and the inner liner 1 from a direction away from the opening 11.

[0450] The refrigeration equipment 100 can be horizontal or vertical. As shown in Figure 21, when the refrigeration equipment 100 is horizontal, the opening 11 of the inner liner 1 faces upward, and the heat exchange tube assembly 21 with the mounting bracket can be inserted from bottom to top between the inner liner 1 and the outer shell 6. As shown in Figure 23, when the refrigeration equipment 100 is vertical, the opening 11 of the inner liner 1 faces forward, and the heat exchange tube assembly 21 with the mounting bracket can be inserted from back to front between the inner liner 1 and the outer shell 6.

[0451] In some embodiments, the outer shell 6 includes a side wall and a plate body facing away from the inner liner opening 11. First, the side wall of the outer shell 6 is assembled with the inner liner 1. Then, the heat exchange tube assembly 21 with the mounting bracket assembly is assembled between the outer shell 6 and the inner liner 1. Finally, the plate body facing away from the inner liner opening 11 is connected to the side wall of the outer shell 6.

[0452] The following describes the refrigeration device 100 provided in this application using a specific embodiment.

[0453] As shown in Figures 1, 2 and 3, the refrigeration equipment 100 includes an inner tank 1, a refrigeration system 2, a support bracket 5, an installation bracket assembly and a fixed bracket 4. The refrigeration system 2 includes a heat exchanger 25, a regenerator, an evaporator-condenser 24 and an evaporator 22.

[0454] The evaporator condenser 24 and the heat exchanger 25 are distributed laterally, and the heat exchanger 25 and the regenerator are stacked at intervals along the thickness direction. The evaporator 22 is wrapped around the outer wall of the inner liner 1.

[0455] The heat exchanger 25 includes a first serpentine tube section and a first connecting section, the first serpentine tube section extending along a first direction and the first serpentine tube section and the first connecting section being distributed laterally.

[0456] The regenerator includes a second serpentine tube section and a second connecting section, the second serpentine tube section extending along a first direction and the second serpentine tube section and the second connecting section being distributed laterally.

[0457] The evaporator-condenser 24 includes a third serpentine tube section and a third connecting section. The third connecting section is located laterally between the third serpentine tube section and the first serpentine tube section. The third serpentine tube section extends in a first direction, and the third serpentine tube section and the third connecting section are distributed laterally.

[0458] A portion of the evaporator 22, a portion of the regenerator, and a portion of the heat exchanger 25 are distributed along the direction from the inner liner 1 to the outer shell 6. A portion of the evaporator 22 and a portion of the evaporator-condenser 24 are also distributed along the direction from the inner liner 1 to the outer shell 6.

[0459] The first mounting bracket 36 is disposed between the evaporator 22 and the regenerator. Multiple first mounting brackets 36 can be disposed laterally to fix the distance between the regenerator and the evaporator 22, and at the same time to stabilize the stability of each section of the second serpentine tube section of the regenerator.

[0460] The second mounting bracket 37 is disposed between the evaporator 22 and the outer casing 6. Multiple second mounting brackets 37 can be disposed laterally to simultaneously fix the distance between the regenerator and the evaporator 22 and between the regenerator and the heat exchanger 25. They can also simultaneously position the stability of each section of the second serpentine tube segment of the regenerator and the stability of each section of the first serpentine tube segment of the heat exchanger 25.

[0461] The third mounting bracket 38 is disposed between the evaporator 22 and the evaporator-condenser 24. Multiple third mounting brackets 38 can be disposed laterally to fix the distance between the evaporator-condenser 24 and the evaporator 22, and to stabilize the stability of each section of the third serpentine tube segment of the evaporator-condenser 24. At the same time, it can fix the connecting pipe connecting the evaporator-condenser 24 and the heat exchanger 25. The connecting pipe is located on the side of the evaporator-condenser 24 away from the evaporator 22 along the thickness direction.

[0462] The first mounting bracket 36 and the second mounting bracket 37 can be set alternately to increase the positioning effect.

[0463] Multiple fixing brackets 4 for positioning the serpentine tube segment 211 of the regenerator and the connecting pipe can be provided along the first direction. One fixing bracket 4 for fixing the serpentine tube segment 211 of the evaporator condenser 24 and the connecting pipe can be provided. One fixing bracket 4 for fixing the connecting pipe of the evaporator condenser 24 and the serpentine tube segment 211 of the regenerator can be provided. Two fixing brackets 4 are distributed along the first direction.

[0464] The capillary tube 214 is located on the inner liner 1 on the side adjacent to the evaporator condenser 24. The capillary tube 214 is wound around the annular support position 512 on the support bracket 5. The capillary tube 214 is separated from the evaporator 22 and the outer shell 6 by the support bracket 5.

[0465] The refrigeration equipment 100 provided in this application, through the coordinated cooperation of the support bracket 5, the mounting bracket group, and the fixed bracket 4, positions each pipe segment within the heat exchange tube group 21 using the mass-produced support bracket 5, the mounting bracket group, and the fixed bracket 4. This positions the multi-layered heat exchange tubes along the transverse direction within the heat exchange tube group 21, the serpentine tube segments 211 and connecting segments 213 distributed along the transverse direction within the same layer, the serpentine tube segments 211 extending along the first direction within the same layer, and the capillary tubes 214. This allows the heat exchange tube groups 21 in multiple mass-produced refrigeration equipment 100 of the same model to be located in predetermined positions, thereby improving the consistency of performance during prototype mass production, enhancing the reliability of the refrigeration system 2 in each refrigeration equipment 100, and extending the service life of the refrigeration equipment 100.

[0466] Any reference to prior art in the specification is not and should not be construed as an admission or in any way an implication that such prior art constitutes part of the general common knowledge in the application region or any other jurisdiction, or that such prior art could be reasonably understood and regarded as relevant by a person skilled in the art.

Claims

1. A refrigeration device, characterized in that, include: A refrigeration system, including a heat exchange tube assembly, wherein the heat exchange tube assembly is arranged in multiple layers along the thickness direction in at least a portion of the region; The mounting bracket assembly forms multiple mounting positions, which include multiple sets arranged at intervals along the thickness direction, each set being used to fix one layer of the heat exchange tube assembly.

2. The refrigeration equipment according to claim 1, characterized in that, Multiple mounting positions in the same group fix the heat exchange tube group in multiple different positions on the same layer.

3. The refrigeration equipment according to claim 1 or 2, characterized in that, The heat exchange tube assembly includes, in at least a portion of the region, a serpentine tube segment extending along a first direction; The mounting bracket group extends along the first direction, and the mounting bracket group includes at least one mounting bracket. Multiple mounting positions in the same group on the same mounting bracket are distributed along the first direction and are used to position multiple pipe segments of the serpentine pipe segment distributed along the first direction.

4. The refrigeration equipment according to claim 3, characterized in that, The mounting bracket includes: Mounting base, extending along the first direction; A plurality of clamping members are disposed on at least one side of the mounting base along the thickness direction, the clamping members forming the mounting position; The mounting base is connected to the housing of the refrigeration equipment via the connecting part.

5. The refrigeration equipment according to claim 4, characterized in that, The clamping member includes two opposing jaws, one end of which is connected to the mounting base. The ends of the two jaws of the clamping member that are away from the mounting base form flanges that bend toward each other, and the two opposing jaws form the mounting position.

6. The refrigeration equipment according to claim 5, characterized in that, The mounting bracket further includes a first reinforcing portion, which is connected between the side wall of the gripper and the mounting base; and / or, The mounting bracket further includes a second reinforcing part connected between the flange and the mounting base, and at least a portion of the second reinforcing part is spaced apart from the side wall of the gripper.

7. The refrigeration equipment according to any one of claims 4-6, characterized in that, The connecting part has a slot for engaging with the housing of the refrigeration equipment.

8. The refrigeration equipment according to claim 7, characterized in that, The mounting base is provided with a plurality of clamping members distributed in the first direction, and the connecting portion is provided at the end of the mounting base along the first direction, and the slot is open in the first direction toward the direction in which the clamping members are provided.

9. The refrigeration equipment according to any one of claims 4-7, characterized in that, The mounting base is provided with a plurality of clamping members distributed in the first direction, and the connecting portion is located at the end of the mounting base along the first direction.

10. The refrigeration equipment according to any one of claims 4-6, characterized in that, The clamping member, the mounting base, and the connecting portion are distributed along the thickness direction of the mounting bracket.

11. The refrigeration equipment according to any one of claims 4-10, characterized in that, The mounting base is provided with a plurality of first weight-reducing grooves, which are spaced apart along the extending direction of the mounting base; and / or, The mounting base is provided with multiple first through holes.

12. The refrigeration equipment according to any one of claims 4-11, characterized in that, The mounting bracket group includes at least one first mounting bracket, wherein the plurality of mounting positions on the first mounting bracket are in the same group along the thickness direction.

13. The refrigeration equipment according to claim 12, characterized in that, The refrigeration system further includes an evaporator wound around the inner liner of the refrigeration equipment, and the mounting base of the first mounting bracket abuts against the evaporator on the side opposite to the corresponding clamping member.

14. The refrigeration equipment according to any one of claims 4-13, characterized in that, The mounting bracket assembly includes a second mounting bracket, and the multiple clamping components of the second mounting bracket include a first group and a second group, which are disposed on both sides of the mounting base along the thickness direction; the mounting base of the second mounting bracket is located between two adjacent heat exchange tube assemblies.

15. The refrigeration equipment according to claim 14, characterized in that, The second mounting bracket further includes at least one first support portion, which protrudes from the mounting base and is higher than the clamping member, and abuts against the housing of the refrigeration equipment.

16. The refrigeration equipment according to any one of claims 3-15, characterized in that, The mounting bracket assembly includes at least one third mounting bracket, wherein the plurality of mounting positions on the third mounting bracket are in the same group along the thickness direction, and at least one of the mounting positions is used to position the multilayer heat exchange tube assembly.

17. The refrigeration equipment according to any one of claims 1-16, characterized in that, The heat exchange tube assembly is arranged in at least a portion of the area as multiple tube segments spaced apart laterally; the refrigeration equipment also includes a fixing bracket forming multiple fixing positions, the multiple fixing positions including multiple segments spaced apart laterally, each used to fix a segment of the tube.

18. The refrigeration equipment according to claim 17, characterized in that, The heat exchange tube assembly includes, in at least a portion of the region, serpentine tube segments and connecting segments distributed laterally, the fixed support extending laterally, and a plurality of mounting positions on the fixed support distributed laterally for positioning adjacent serpentine tube segments and connecting segments.

19. The refrigeration equipment according to claim 17 or 18, characterized in that, The fixing bracket includes: The mounting base extends laterally; A plurality of fasteners are disposed on at least one side of the fixing base along the thickness direction, and the fasteners form the fixing position.

20. The refrigeration equipment according to claim 19, characterized in that, The fastener includes two opposing fastening claws, one end of which is connected to the fastening base. The ends of the two fastening claws facing away from the fastening base form bent portions that bend toward each other, and the two opposing fastening claws form the fastening position.

21. The refrigeration equipment according to any one of claims 17-20, characterized in that, The heat exchange tube assembly is arranged in multiple layers along the thickness direction in at least a portion of the region; The plurality of fixing positions on the fixed bracket are arranged in multiple groups spaced apart along the thickness direction. Multiple fixing positions in different groups on the same fixed bracket are distributed along the thickness direction and are used to position the multi-layer heat exchange tube group.

22. The refrigeration equipment according to any one of claims 1-21, characterized in that, The refrigeration system includes an evaporator, and the heat exchange tube assembly includes capillary tubes; The refrigeration equipment includes an inner liner and a support bracket. The evaporator is wound around the outer side of the inner liner. The support bracket supports the evaporator and is provided with an annular support position. The capillary tube is wound around the annular support position.

23. The refrigeration equipment according to claim 22, characterized in that, The support bracket includes a wound base, and the outer peripheral wall of the wound base forms the annular support position.

24. The refrigeration equipment according to claim 23, characterized in that, Both ends of the outer peripheral wall of the winding base are provided with retaining edges along the axial direction, and the retaining edges extend around the circumference of the winding base.

25. The refrigeration equipment according to claim 23 or 24, characterized in that, The support bracket also includes spokes, the ends of which are connected to the winding base.

26. The refrigeration equipment according to any one of claims 1-25, characterized in that, Also includes: The enclosure forms a compartment, and the refrigeration system and the mounting bracket assembly are both installed in the enclosure.

27. The refrigeration equipment according to claim 26, characterized in that, The enclosure includes an inner liner and an outer shell, with the inner liner disposed inside the outer shell, and the mounting bracket assembly and the heat exchange tube assembly both installed in the inner liner.

28. The refrigeration equipment according to claim 27, characterized in that, The inner liner has an opening, and the mounting bracket assembly is connected to the opening.

29. The refrigeration equipment according to claim 28, characterized in that, The inner liner has an opening, and a first connector is provided on the side wall of the inner liner away from the opening. The mounting bracket assembly is connected to the first connector.

30. The refrigeration equipment according to any one of claims 27-29, characterized in that, The enclosure includes an inner liner and an outer shell, with the inner liner disposed inside the outer shell, and the mounting bracket assembly and the heat exchange tube assembly both mounted on the outer shell.

31. The refrigeration equipment according to claim 30, characterized in that, The mounting bracket assembly is connected to the side plate of the housing.

32. The refrigeration equipment according to claim 30 or 31, characterized in that, The inner liner has an opening, and the mounting bracket assembly is connected to the outer shell plate opposite to the opening.

33. The refrigeration equipment according to any one of claims 27-29, characterized in that, The enclosure includes an inner liner and an outer shell, with the inner liner disposed inside the outer shell, and the mounting bracket assembly and the heat exchange tube assembly located between the outer shell and the inner liner.

34. The refrigeration equipment according to claim 33, characterized in that, The mounting bracket assembly abuts against the outer shell and / or the inner liner, and the heat exchange tube assembly is spaced apart from the outer shell.

35. The refrigeration equipment according to any one of claims 1-34, characterized in that, The refrigeration system also includes: compressor; A condenser, wherein the outlet of the compressor is connected to the inlet of the condenser; The heat exchanger includes a first heat exchange tube and a second heat exchange tube, and the outlet of the condenser is connected to the inlet of the first heat exchange tube; The return gas pipe assembly includes a first line and a second line, with the outlet of the first heat exchange pipe connected to the inlet of the first line. The evaporator has the outlet of the first path connected to the inlet of the evaporator, the outlet of the evaporator connected to the inlet of the second path, the outlet of the second path connected to the inlet of the second heat exchange tube, and the outlet of the second heat exchange tube connected to the inlet of the compressor. The second path of the return gas pipe group and the second heat exchange tube of the heat exchanger are formed by the same heat exchange pipe.

36. The refrigeration equipment according to claim 35, characterized in that, The heat exchange pipeline includes a serpentine pipe section extending along a first direction, the first heat exchange pipe extending along a portion of the serpentine pipe section, and the first path extending along another portion of the serpentine pipe section.

37. The refrigeration equipment according to claim 36, characterized in that, The heat exchange pipeline includes a first serpentine section and a second serpentine section arranged and connected along a first direction. The inlet of the second serpentine section is connected to the outlet of the evaporator. The length of the first serpentine section along the second direction is longer than the length of the second serpentine section along the second direction. The second heat exchange tube of the heat exchanger includes the first serpentine section, and the second path of the return gas pipe group includes the second serpentine section; The first heat exchange tube extends along the extension direction of the first serpentine section and at least partially extends into the second serpentine section, and the first path extends along the extension direction of the second serpentine section.

38. The refrigeration equipment according to any one of claims 35-37, characterized in that, The refrigeration equipment includes an inner liner and an outer shell. Along the distribution direction of the inner liner and the outer shell, the evaporator, the second heat exchange tube and the first heat exchange tube are arranged in sequence, and the temperature of the evaporator, the second heat exchange tube and the first heat exchange tube increases progressively.

39. The refrigeration equipment according to any one of claims 35-38, characterized in that, The first heat exchange tube has a first contact surface on its tube wall, and the second heat exchange tube has a second contact surface on its tube wall. The first contact surface and the second contact surface form a surface contact, and the first heat exchange tube and the second heat exchange tube exchange heat through the first contact surface and the second contact surface.

40. The refrigeration equipment according to claim 39, characterized in that, Both the first contact surface and the second contact surface are planar, and / or both the first contact surface and the second contact surface are curved.

41. A refrigeration device, characterized in that, Includes the refrigeration system as described in any one of claims 35-40.

42. The refrigeration equipment according to claim 41, characterized in that, The refrigeration equipment includes an inner tank, and the heat exchanger is disposed on the side of the inner tank along the height direction, with the inlet of the first heat exchange tube being higher than the outlet of the first heat exchange tube along the height direction.

43. The refrigeration equipment according to claim 42, characterized in that, The refrigeration equipment also includes a cabin and an outer shell. The inner liner and the cabin are both located inside the outer shell. The heat exchanger is located between the inner liner and the cabin and is attached to the outer wall of the cabin.

44. The refrigeration equipment according to claim 43, characterized in that, An insulation layer is provided between the inner liner and the cabin, and the ratio Q of the thickness of the insulation layer to the height of the cabin satisfies: 0.4≤Q≤1.

45. A method for assembling a refrigeration device, characterized in that, The refrigeration system of the refrigeration equipment includes heat exchange tube assemblies, which are arranged in multiple layers along the thickness direction in at least a partial area; the mounting bracket assembly of the refrigeration equipment forms multiple mounting positions, which include multiple sets spaced apart along the thickness direction, each set for fixing one layer of the heat exchange tube assembly; the housing of the refrigeration equipment forms a compartment, and the refrigeration system and the mounting bracket assembly are both installed in the housing, which includes an inner liner and an outer shell; the assembly method includes: The mounting bracket assembly is assembled onto the heat exchange tube assembly; The heat exchange tube assembly, which is equipped with the mounting bracket assembly, is assembled into the inner liner; The inner liner, which is equipped with the heat exchange tube assembly and the mounting bracket assembly, is assembled onto the outer shell. Foaming is performed between the outer shell and the inner liner.

46. ​​A method for assembling a refrigeration device, characterized in that, The refrigeration system of the refrigeration equipment includes heat exchange tube assemblies, which are arranged in multiple layers along the thickness direction in at least a partial area; the mounting bracket assembly of the refrigeration equipment forms multiple mounting positions, which include multiple sets spaced apart along the thickness direction, each set for fixing one layer of the heat exchange tube assembly; the housing of the refrigeration equipment forms a compartment, and the refrigeration system and the mounting bracket assembly are both installed in the housing, which includes an inner liner and an outer shell; the assembly method includes: The heat exchange tube assembly is assembled into the outer casing; The mounting bracket assembly is assembled onto the heat exchange tube assembly; The inner liner is assembled into the outer shell, which is equipped with the heat exchange tube assembly and the mounting bracket assembly; Foaming is performed between the outer shell and the inner liner.

47. The assembly method of the refrigeration equipment according to claim 46, characterized in that, The inner liner of the refrigeration equipment has an opening; the assembly of the heat exchange tube assembly onto the outer shell includes: The heat exchange tube assembly is installed inside the housing and connected to the side plate of the housing; or, the heat exchange tube assembly is installed inside the housing and connected to the plate of the housing opposite to the opening.

48. A method for assembling a refrigeration device, characterized in that, The refrigeration system of the refrigeration equipment includes heat exchange tube assemblies, which are arranged in multiple layers along the thickness direction in at least a partial area; the mounting bracket assembly of the refrigeration equipment forms multiple mounting positions, which include multiple sets spaced apart along the thickness direction, each set for fixing one layer of the heat exchange tube assembly; the housing of the refrigeration equipment forms a compartment, and the refrigeration system and the mounting bracket assembly are both installed in the housing, which includes an inner liner and an outer shell; the assembly method includes: The inner liner is assembled inside the outer shell; The heat exchange tube assembly, on which the mounting bracket assembly is installed, is assembled between the outer shell and the inner liner; Foaming is performed between the outer shell and the inner liner.

49. The assembly method of the refrigeration equipment according to claim 48, characterized in that, The inner liner of the refrigeration equipment has an opening; the assembly of the heat exchange tube assembly, on which the mounting bracket assembly is installed, between the outer shell and the inner liner includes: The heat exchange tube assembly, on which the mounting bracket assembly is installed, is inserted between the outer shell and the inner liner from the direction of the opening.

50. The assembly method of the refrigeration equipment according to claim 48, characterized in that, The inner liner of the refrigeration equipment has an opening; the assembly of the heat exchange tube assembly, on which the mounting bracket assembly is installed, between the outer shell and the inner liner includes: The heat exchange tube assembly, on which the mounting bracket is installed, is inserted between the outer shell and the inner liner from a direction away from the opening.

Images