Pipeline integration module, outdoor unit and air conditioning system

Abstract

A pipeline integration module (10), an outdoor unit and an air conditioning system, relating to the technical field of air conditioning apparatuses. The pipeline integration module (10) comprises a module body (100) and a clamping plate layer (200); a first plate body (110) and a second plate body (120) of the module body (100) are arranged in a covering manner; a first interlayer (211) of the clamping plate layer (200) is connected between the first plate body (110) and the second plate body (120) to define a first cavity (101) for accommodating a fluid, a second interlayer (220) of the clamping plate layer (200) is connected between the first plate body (110) and the second plate body (120) to define a second cavity (102) for accommodating the fluid, and the circulation area of the first cavity (101) is greater than the circulation area of the second cavity (102); and the first interlayer (211) comprises a support plate (211), a first adhesive layer (212) connected between the support plate (211) and the first plate body (110), and a second adhesive layer (213) connected between the support plate (211) and the second plate body (120). Different types of interlayers are provided for cavities having different circulation areas of the module body (100) to connect the first plate body (110) and the second plate body (120) respectively, such that the pressure resistance stability of the first plate body (110) and the second plate body (120) near the cavity having a larger circulation area can be effectively improved.

Description

Pipeline integrated module, outdoor unit and air conditioning system

[0001] Related applications

[0002] This application claims the priority of the following Chinese patent applications:

[0003] Application number 202311718069.3, filed on December 13, 2023, is titled “A Pipeline Integrated Module, Outdoor Unit, and Air Conditioning System”;

[0004] Application number 202323411690.3, filed on December 13, 2023, is titled “A Pipeline Integrated Module, Outdoor Unit, and Air Conditioning System”;

[0005] The application number is 202311716520.8, filed on December 13, 2023, and is titled “A pipeline integrated module, outdoor unit and HVAC equipment”;

[0006] The above patent is hereby incorporated by reference in its entirety. Technical Field

[0007] The present application relates to the technical field of air-conditioning equipment, and in particular to a pipeline integration module, an outdoor unit and an air-conditioning system. Background Art

[0008] The air conditioner outdoor unit includes a compressor, a low-pressure tank, electrical components, a filter, a one-way valve, an oil separator and a capillary tube. The various components are connected by connecting pipes, and the pipes are complex. The pipes can be integrated through a pipe integration module.

[0009] The pipe integration module of an air conditioner's outdoor unit consists of two plates with grooves machined into them. When joined together, the grooves form a sealed cavity. When fluid is present within the cavity, the larger the cavity, the greater the volume of fluid it holds, and the greater the load. Furthermore, the lower the static or alternating loads that the portion of the module defining the cavity can withstand, the more likely it is to deform. Summary of the Invention

[0010] The embodiments of the present application provide a pipeline integration module, an outdoor unit, and an air-conditioning system, which can solve the problem of poor pressure resistance at the connection between two plates of the pipeline integration module.

[0011] In a first aspect, an embodiment of the present application provides a pipeline integration module, comprising a module body and a plywood layer.

[0012] The module body includes a first plate body and a second plate body, and the first plate body and the second plate body are arranged to cover each other; the plywood layer includes a first interlayer and a second interlayer, the first interlayer is connected between the first plate body and the second plate body to define a first cavity for accommodating fluid, and the second interlayer is connected between the first plate body and the second plate body to define a second cavity for accommodating fluid, and the flow area of ​​the first cavity is greater than the flow area of ​​the second cavity; wherein, the first interlayer includes a support plate, a first adhesive layer connected between the support plate and the first plate body, and a second adhesive layer connected between the support plate and the second plate body.

[0013] In some exemplary embodiments, the first plate body has a first groove, the notch of the first groove has a first stamped chamfer; the second plate body has a second groove, the notch of the second groove has a second stamped chamfer; the second groove is arranged corresponding to the first groove, the two define the first cavity, and the first interlayer extends between the first stamped chamfer and the second stamped chamfer.

[0014] In some exemplary embodiments, the support plate extends between the first stamped chamfer and the second stamped chamfer; the first adhesive layer extends to be connected to the surface of the support plate facing the first stamped chamfer and is connected to the first stamped chamfer; and / or, the second adhesive layer extends to be connected to the surface of the support plate facing the second stamped chamfer and is connected to the second stamped chamfer.

[0015] In some exemplary embodiments, the first plate body has a limiting groove arranged around the outer periphery of the first groove; and / or the second plate body has a limiting groove arranged around the outer periphery of the second groove; and the first interlayer is arranged in the limiting groove.

[0016] In some exemplary embodiments, the support plate extends from the limiting groove to between the first stamping chamfer and the second stamping chamfer, the first adhesive layer extends from the limiting groove to between the first stamping chamfer and the support plate, and the second adhesive layer extends from the limiting groove to between the second stamping chamfer and the support plate.

[0017] In some exemplary embodiments, a plurality of docking openings are provided on the surface of the first plate body facing away from the second plate body, the first cavity is connected to at least one of the docking openings, and the second cavity is connected to at least one of the docking openings; the surface of the second plate body facing the first plate body is provided with the limiting groove, and the bottom wall of the limiting groove is provided with the second groove.

[0018] In some exemplary embodiments, in the covering direction of the first plate body and the second plate body, the depth of the limiting groove is H, the thickness of the first interlayer is h1, and the thickness of the second interlayer is h2, wherein H+h2=h1.

[0019] In some exemplary embodiments, in the covering direction of the first plate body and the second plate body, the depth of the limiting groove is H, and H satisfies: 0.2 mm ≤ H ≤ 0.5 mm.

[0020] In some exemplary embodiments, the second interlayer is a solder foil or solder paste; the support plate is a hard metal support plate; the first adhesive layer is a solder foil or solder paste; and the second adhesive layer is a solder foil or solder paste.

[0021] In some exemplary embodiments, the first cavity includes at least an oil separation cavity, the oil separation cavity includes an inlet and an outlet, the oil separation cavity includes an intermediate cavity and two transition cavities, the two transition cavities are respectively located at the two ends of the intermediate cavity, the intermediate cavity is provided with the inlet, and the two transition cavities are respectively provided with the outlet; the plate surface perpendicular to the first plate body and the second plate body is defined as a cross section, and the section parallel to the plate surface of the first plate body and the second plate body is defined as a vertical section, the cross section of the intermediate cavity is configured to be circular or elliptical, and the cross section and vertical section of the transition cavity are both configured to be non-circular.

[0022] In some exemplary embodiments, the cross-section of the transition cavity is polygonal, and / or the vertical cross-section of the transition cavity is polygonal.

[0023] In some exemplary embodiments, the orientation of the inlet and the orientation of each of the outlets are parallel to the cross section, and the orientation of the inlet and the orientation of each of the outlets are parallel to each other.

[0024] In some exemplary embodiments, a first interlayer is provided on the left and right sides of the middle cavity respectively; the first interlayer is arranged around the transition cavity, and the first interlayers on the left and right sides of the middle cavity are respectively connected to the first interlayers arranged at both ends in the transition cavity.

[0025] In some exemplary embodiments, the outlets of the two transfer chambers are respectively an air outlet and an oil outlet, the refrigerant gas separated by the intermediate chamber is output through the air outlet, and the oil separated by the intermediate chamber is output through the oil outlet.

[0026] In some exemplary embodiments, the pipeline integration module further includes an air outlet pipe, and tapered cavities are formed at both ends of the intermediate cavity. Each of the tapered cavities is constructed to gradually decrease in size along the direction toward the corresponding transition cavity, and the end of each of the tapered cavities is connected to the corresponding transition cavity; the end of the tapered cavity connected to the air outlet forms a neck, the first end of the air outlet pipe is fixed to the inner wall of the neck, and the second end of the air outlet pipe extends into the intermediate cavity and extends beyond the inlet.

[0027] In some exemplary embodiments, a first interlayer is provided on both sides of the neck, and the air outlet pipe abuts against the support plate on the corresponding side.

[0028] In some exemplary embodiments, a third adhesive layer is provided between the inner wall of the neck and the first end of the air outlet pipe, and the third adhesive layer is provided around the first end of the air outlet pipe.

[0029] In some exemplary embodiments, the first chamber includes at least a filter chamber, the first plate body has a first groove, the second plate body has a second groove, the second groove is arranged corresponding to the first groove, and the two define the filter chamber; one of the first groove and the second groove is provided with at least two docking openings, at least two of the docking openings form a refrigerant inlet and outlet, and the first groove and the second groove are provided with limiting grooves on their circumferential sides, and the first interlayer is received in the limiting grooves.

[0030] In a second aspect, an embodiment of the present application provides an outdoor unit, whose pipeline is connected to the indoor unit to form a refrigerant circulation, and the outdoor unit includes the pipeline integration module as described above.

[0031] In some exemplary embodiments, the outdoor unit includes at least a compressor, a reversing valve, an outdoor heat exchanger, and a gas-liquid separator, a liquid pipe and a gas pipe that are independent of the pipeline integrated module, and the reversing valve includes a first flow path and a second flow path; the first cavity includes at least an oil separation chamber and a filter chamber, and the filter chamber is directly connected to the gas pipe; the second cavity includes a plurality of connecting channels, and the plurality of connecting channels include a first connecting channel, and the first connecting channel is directly connected to the liquid pipe; the refrigerant cycle includes a refrigeration cycle, and the refrigeration cycle includes the compressor-the oil separation chamber-the first flow path-the outdoor heat exchanger-the first connecting channel-the liquid pipe-the indoor heat exchanger of the indoor unit-the gas pipe-the filter chamber-the second flow path-the gas-liquid separator-the compressor that are connected in sequence.

[0032] In some exemplary embodiments, the oil separation chamber includes an air inlet and a first outlet, a second outlet and a third outlet, the first outlet is connected to the first connecting channel, the second outlet and the third outlet are respectively connected to the second connecting channel of the multiple connecting channels in parallel, and the second connecting channel leads to the gas-liquid separator.

[0033] In some exemplary embodiments, the third outlet is directly connected to the second connecting channel only through a capillary tube.

[0034] In some exemplary embodiments, the multiple connecting channels include a third connecting channel, which is connected between the second outlet and the second connecting channel. The pipeline between the second outlet and the second connecting channel is provided with a first one-way valve, which controls the flow from the second outlet to the second connecting channel.

[0035] In some exemplary embodiments, the outdoor unit includes a subcooler, which includes a first refrigerant channel and a second refrigerant channel, the refrigerant in the second refrigerant channel is used to supercool the refrigerant in the first refrigerant channel, the first end of the first refrigerant channel leads to the outdoor heat exchanger, the second end of the first refrigerant channel leads to the first connecting channel, the first end of the second refrigerant channel leads to the first connecting channel, and the second end of the second refrigerant channel leads to the gas-liquid separator or the compressor.

[0036] In a third aspect, an embodiment of the present application provides an air-conditioning system, comprising an outdoor unit as described above, an indoor unit, and a refrigerant pipe connecting the outdoor unit and the indoor unit.

[0037] Based on the pipeline integrated module, outdoor unit and air-conditioning system of the embodiment of the present application, for the cavities with different flow areas of the module body, different types of interlayers are set in the peripheral areas of the corresponding cavities to connect the first plate body and the second plate body, and the first plate body and the second plate body are connected by the first interlayer having a support plate in the peripheral area of ​​the first cavity with a larger flow area, and the first plate body and the second plate body are directly connected by the second interlayer in the peripheral area of ​​the second cavity with a smaller flow area, so as to prevent the situation that the connection between the first plate body and the second plate body in the peripheral areas of different cavities is difficult to cope with different pressures due to the same connection method in each area of ​​the first plate body and the second plate body, thereby reducing the connection stability. In particular, in the case of processing the first plate body and the second plate body into one piece, connecting the first plate body and the second plate body through the sandwich structure with a support plate inside the first interlayer can effectively improve the pressure resistance stability of the first plate body and the second plate body near the cavity with a larger flow area. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0039] FIG1 is a schematic diagram of the three-dimensional structure of a pipeline integration module according to an embodiment of the present application;

[0040] FIG2 is a schematic diagram of an exploded structure of a pipeline integration module according to an embodiment of the present application;

[0041] FIG3 is a schematic cross-sectional view of a pipeline integration module at AA according to an embodiment of the present application;

[0042] FIG4 is a partial enlarged view of point Q in FIG3 ;

[0043] FIG5 is a schematic diagram of the three-dimensional structure of a connecting pipe installed in a pipe integration module according to an embodiment of the present application;

[0044] FIG6 is a schematic perspective cross-sectional view of a first butt joint pipe provided at a first opening according to an embodiment of the present application;

[0045] FIG7 is a partial enlarged view of point M in FIG6;

[0046] FIG8 is a schematic diagram of a three-dimensional structure of a pipeline integration module having three accommodating cavities according to an embodiment of the present application;

[0047] FIG9 is a side cross-sectional structural diagram of a first butt joint pipe provided at a first opening according to an embodiment of the present application;

[0048] FIG10 is a partial enlarged view of point K in FIG9 ;

[0049] FIG11 is a partial enlarged view of point N in FIG9 ;

[0050] FIG12 is a schematic diagram of the three-dimensional structure of a pipeline integration module with a sound insulation member according to an embodiment of the present application;

[0051] FIG13 is a schematic diagram of an exploded structure of a pipeline integration module with a sound insulation member according to an embodiment of the present application;

[0052] FIG14 is a schematic front view of a pipeline integration module according to an embodiment of the present application;

[0053] FIG15 is a schematic diagram of the pipe connections of an air conditioner outdoor unit according to an embodiment of the present application;

[0054] FIG16 is a schematic diagram of the pipe connection of an air-conditioning outdoor unit according to another embodiment of the present application.

[0055] Reference Signs: 10, pipeline integrated module; 100, module body; 110, first plate; 120, second plate; 111, docking opening; 112, first surface; 113, second surface; A, thickness direction; 1101, raised portion; 1111, first convex hull; 1112, first convex tube; 1113, second convex tube; 1211, first flange; 1212, second flange; 1110, first convex portion; 1210, second convex portion; 1120, first flat portion; 1220, second flat portion; 132, convex hull flange; 20, accommodating chamber; 21, first flow segment; 22, second flow segment; 23, first opening; 24, reversing space; 31, second opening; 201, first chamber; 202, second chamber; 203, third chamber; 101, first cavity; 1011, first groove; 101a, first stamped chamfer; 1012, second groove; 101b, second stamped chamfer; 1013, limiting groove; 102, second cavity; 1021, third groove; 1022, fourth groove; 200, sandwich layer; 210, first sandwich layer; 211, support plate; 212, first adhesive layer; 213, second adhesive layer; 220, second sandwich layer; 201a, third stamped chamfer; 201b, fourth stamped chamfer; 300, butt joint pipe; 310, first butt joint pipe; 311, first pipe section; 210a, diversion opening; 312, second pipe section; 313, transition pipe section; 320, second butt joint pipe; 330, external pipe; 400, sound insulation; 410, first sound insulation portion; 420, second sound insulation portion; 500, oil separation chamber; 510, inlet; 520, outlet; 521, air outlet; 522, oil outlet; 501, intermediate chamber; 502, adapter chamber; 503, neck; 530, air outlet pipe; 501, first filter; 600, filter chamber; 601, second filter; 610. Indoor heat exchanger; 620. Compressor; 630. Reversing valve; 631. First flow path; 632. Second flow path; 640. Outdoor heat exchanger; 650. Subcooler; 651. First refrigerant channel; 652. Second refrigerant channel; 660. Gas-liquid separator; 670. Liquid pipe; 680. Gas pipe; 61. First connecting channel; 62. Second connecting channel; 63. Third connecting channel; 64. First transition flow channel; 65. Second transition flow channel; 66. Third transition channel; 67. Fourth transition channel; 68. Fifth transition channel; 71. First electronic expansion valve; 72. Second electronic expansion valve. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0057] The pipe integration module of the air conditioner outdoor unit includes two plates with grooves machined on them. After docking, the grooves form a sealed cavity. When there is fluid in the cavity of the pipe integration module, the larger the capacity of the cavity, the more volume of fluid it can hold, and the greater the load. Moreover, when the static load or alternating load that the part of the cavity that defines the pipe integration module can withstand is lower, the pipe integration module is more likely to deform. For example, if the two plates are connected and fixed by welding, the greater the load on the cavity, the worse the pressure stability of the connection between the two plates that define the cavity, and the lower the static load or alternating load that can be withstand, it is easy for the connection between the two plates to tear, etc., causing deformation of the pipe integration module.

[0058] Figures 1 and 2 are schematic diagrams of the structure of a pipeline integration module 10 provided in one embodiment of the present application. The pipeline integration module 10 includes a module body 100 and a plywood layer 200. The module body 100 includes two panels that are arranged to cover each other, and the plywood layer 200 is used to connect between the two panels to securely connect the two panels.

[0059] Specifically, one of the two plates is a first plate 110, and the other is a second plate 120. The sandwich layer 200 includes a first interlayer 210 and a second interlayer 220. The first interlayer 210 is connected between the first plate 110 and the second plate 120, and the first interlayer 210, the first plate 110, and the second plate 120 together define a first cavity 101. The second interlayer 220 is connected between the first plate 110 and the second plate 120, and the second interlayer 220, the first plate 110, and the second plate 120 together define a second cavity 102. Both the first cavity 101 and the second cavity 102 are used to accommodate fluid, and the flow area of ​​the first cavity 101 is larger than the flow area of ​​the second cavity 102. Furthermore, the amount of fluid that can be loaded within the first cavity 101 is larger than the amount of fluid that can be loaded within the second cavity 102.

[0060] It can be understood that there is a gap between the parts of the first plate 110 and the second plate 120 that participate in defining the first cavity 101. Similarly, there is a gap between the parts of the first plate 110 and the second plate 120 that participate in defining the second cavity 102. Since the flow area of ​​the first cavity 101 is larger than the flow area of ​​the second cavity 102, the gap area of ​​the parts of the first plate 110 and the second plate 120 that participate in defining the first cavity 101 is larger than the gap area of ​​the parts of the first plate 110 and the second plate 120 that participate in defining the first cavity 101. The plates with a larger gap area are more likely to deform. Furthermore, when the first plate 110 and the second plate 120 are connected in the peripheral area of ​​the first cavity 101, the fluid pressure that this area needs to withstand is greater. Correspondingly, the fluid pressure at the connection between the first interlayer 210, the first plate 110, and the second plate 120, which define the first cavity 101, is m1, and the fluid pressure at the connection between the second interlayer 220, the first plate 110, and the second plate 120, which define the second cavity 102, is m2, where m1>m2. Based on this, the embodiments of the present application adopt different countermeasures when fixing the plates in the peripheral areas of cavities with different flow areas.

[0061] As shown in FIG4 , the first interlayer 210 includes a support plate 211, a first adhesive layer 212 connected between the support plate 211 and the first plate 110, and a second adhesive layer 213 connected between the support plate 211 and the second plate 120. The support plate 211 has structural strength and is used to provide support for the first plate 110, the second plate 120, the first adhesive layer 212, and the second plate 120. This prevents deformation of the first plate 110 and the second plate 120 when they are respectively connected to the first interlayer 210, and improves the connection stability between the first adhesive layer 212 and the first plate 110 and the support plate 211, and improves the connection stability between the second adhesive layer 213 and the second plate 120. Even when the flow area of ​​the first cavity 101 is large, the connection between the first plate 110, the second plate 120, and the first interlayer 210 still has good connection stability.

[0062] In an embodiment of the present application, for cavities with different flow areas of the module body 100, different types of interlayers are arranged in the corresponding peripheral areas of the cavities to connect the first plate body 110 and the second plate body 120, and the first plate body 110 and the second plate body 120 are connected by a first interlayer 210 having a support plate 211 in the peripheral area of ​​the first cavity 101 with a larger flow area, and the first plate body 110 and the second plate body 120 are directly connected by a second interlayer 220 in the peripheral area of ​​the second cavity 102 with a smaller flow area, so as to prevent the situation that the connection between the first plate body 110 and the second plate body 120 in the peripheral areas of different cavities is difficult to cope with different pressures and the connection stability is reduced due to the same connection method in all areas of the first plate body 110 and the second plate body 120. Especially in the processing method of setting a connecting structure between the first plate body 110 and the second plate body 120 to connect and fix the two plate bodies, the first plate body 110 and the second plate body 120 are connected by a sandwich structure with a support plate 211 inside the first interlayer 210, which can effectively improve the tear strength of the first plate body 110 and the second plate body 120 near the cavity with a larger flow area.

[0063] The first plate 110 and the second plate 120 are both formed by a stamping process. As shown in FIG2 , the first plate 110 is stamped to form a first groove 1011, and the second plate 120 is stamped to form a second groove 1012. When the first plate 110 and the second plate 120 are overlapped, the second groove 1012 is arranged corresponding to the first groove 1011 and encloses and defines the first cavity 101. The first plate 110 and the second plate 120 processed by the stamping process are prone to poor plate flatness. If the first plate 110 and the second plate 120 have defects such as wrinkles, bulges, and poor flatness at the same position, when the first plate 110 and the second plate 120 are overlapped, gaps will overlap, which is not conducive to the connection stability at the gap and easily leads to low strength of the connection structure at that gap. 3 and 4 , the notch of the first groove 1011 of the stamped first plate 110 has a first stamped chamfer 101a, and the notch of the second groove 1012 of the stamped second plate 120 has a second stamped chamfer 101b. When the stamped first plate 110 and the second plate 120 are overlapped, a gap is formed between the first stamped chamfer 101a and the second stamped chamfer 101b, causing deformation of the formed first cavity 101. When the first cavity 101 is subjected to a large static load or alternating load, the gap between the first stamped chamfer 101a and the second stamped chamfer 101b is prone to tearing, resulting in poor performance of the first cavity 101 in withstanding static and alternating loads.

[0064] Optionally, the first interlayer 210 is provided to extend between the first stamped chamfer 101a and the second stamped chamfer 101b, so that the first interlayer 210 can have as much area as possible to connect with the first plate 110 and the second plate 120, thereby improving the connection stability and tear resistance at the first stamped chamfer 101a and the second stamped chamfer 101b, and also preventing the fluid from entering between the first stamped chamfer 101a and the second stamped chamfer 101b and directly washing the connection between the first stamped chamfer 101a and the second stamped chamfer 101b. Among them, the support plate 211 extends between the first stamped chamfer 101a and the second stamped chamfer 101b, which can further improve the support stability of the support plate 211 on the first plate 110 and the second plate 120, and reduce the occurrence of deformation of the first cavity 101.

[0065] Optionally, the first adhesive layer 212 extends to the surface connected to the support plate 211 facing the first stamped chamfer 101a, and the first adhesive layer 212 is connected to the first stamped chamfer 101a, and the first adhesive layer 212 is filled in the gap between the support plate 211 and the first stamped chamfer 101a to prevent the fluid from entering the gap between the support plate 211 and the first stamped chamfer 101a, thereby improving the tear strength of the connection between the support plate 211 and the first stamped chamfer 101a.

[0066] Optionally, the second adhesive layer 213 extends to the surface connected to the support plate 211 facing the second stamped chamfer 101b, and the second adhesive layer 213 is connected to the second stamped chamfer 101b, and the second adhesive layer 213 is filled in the gap between the support plate 211 and the second stamped chamfer 101b to prevent the fluid from entering the gap between the support plate 211 and the second stamped chamfer 101b, thereby improving the tear strength at the connection between the support plate 211 and the second stamped chamfer 101b.

[0067] Furthermore, the first interlayer 210 extends to fill the gap between the first stamped chamfer 101a and the second stamped chamfer 101b, that is, the first adhesive layer 212 fills the gap between the support plate 211 and the first stamped chamfer 101a, and the second adhesive layer 213 fills the gap between the support plate 211 and the second stamped chamfer 101b, thereby increasing the filling degree of the first interlayer 210 between the first stamped chamfer 101a and the second stamped chamfer 101b, and further improving the connection stability and tear strength between the first stamped chamfer 101a and the second stamped chamfer 101b.

[0068] In the embodiment of the present application, when the first plate 110 and the second plate 120 are covered, welding is used to achieve the connection between the first plate 110 and the second plate 120 near the first cavity 101, wherein the first adhesive layer 212 is a foil-like solder or a paste-like solder, and the second adhesive layer 213 is a foil-like solder or a paste-like solder. A first interlayer 210 is provided to extend to the gap between the first stamped chamfer 101a and the second stamped chamfer 101b, and a first adhesive layer 212 is used to fill the gap between the support plate 211 and the first stamped chamfer 101a; and / or, a second adhesive layer 213 is used to fill the gap between the support plate 211 and the second stamped chamfer 101b, so that the filling degree between the first stamped chamfer 101a and the second stamped chamfer 101b is higher, which can effectively reduce the pressure on the first stamped chamfer 101a and the second stamped chamfer 101b when the load on the first cavity 101 is large, and improve the pressure resistance and fatigue resistance of the first cavity 101 formed by splicing the first plate body 110 and the second plate body 120 formed by stamping. Moreover, under the support of the support plate 211, it is more conducive to the spreading and forming of the fiber materials of the first adhesive layer 212 and the second adhesive layer 213, and reduces the deformation of the first plate body 110 and the second plate body 120 caused by the stress during the stamping and forming of the first plate body 110 and the second plate body 120 during welding, thereby improving the connection stability.

[0069] Optionally, the support plate 211 is a hard metal support plate 211. The support plate 211 made of metal material has good structural strength and thermal conductivity. For example, the support plate 211 is a hard stainless steel support plate 211, a copper support plate 211, or an iron support plate 211.

[0070] In addition, the support plate 211 extends between the first stamped chamfer 101a and the second stamped chamfer 101b, dividing the gap between the first stamped chamfer 101a and the second stamped chamfer 101b into two small gaps. It can be understood that under the traction of capillary force, the material of the first adhesive layer 212 can directly extend to fill the gap between the first stamped chamfer 101a and the support plate 211, and the material of the second adhesive layer 213 can directly extend to fill the gap between the second stamped chamfer 101b and the support plate 211, which helps to improve the filling degree between the first stamped chamfer 101a and the second stamped chamfer 101b.

[0071] Optionally, when the first plate 110 and the second plate 120 are covered, welding can be used to connect the first plate 110 and the second plate 120 near the second cavity 102, and the second interlayer 220 is foil solder or paste solder.

[0072] The foil or paste solder described in the embodiments of this application are two different types of solder. Optionally, the foil solder is fixed between two layers of plates using resistance spot welding to achieve soldering of the two layers. Alternatively, the paste solder is applied to the wall of the plates and, after solidification, connects the plates on either side to achieve soldering of the two layers. Materials for the foil or paste solder include copper solder, tin, and the like.

[0073] Optionally, a third groove 1021 is stamped out of the first plate 110, and a fourth groove 1022 is stamped out of the second plate 120. When the first plate 110 and the second plate 120 are overlapped, the third groove 1021 and the fourth groove 1022 together define the second cavity 102. As shown in FIG4 , the notch of the third groove 1021 forms a third chamfer 201a, and the notch of the fourth groove 1022 forms a fourth chamfer 201b. The second interlayer 220 also fills the gap between the third chamfer 201a and the fourth chamfer 201b, that is, the second interlayer 220 also connects the third chamfer 201a and the fourth chamfer 201b. In this way, the connection stability and tear resistance between the third chamfer 201a and the fourth chamfer 201b are improved, thereby increasing the static load or alternating load that the second cavity 102 can withstand.

[0074] The embodiment of the present application has a plurality of first cavities 101 and a plurality of second cavities 102. The number of first interlayers 210 can be a plurality corresponding to the plurality of first cavities 101, and the number of second interlayers 220 can be a plurality corresponding to the plurality of second cavities 102. The first interlayer 210 and the second interlayer 220 are arranged at intervals, wherein the adjacent plurality of first interlayers 210 are arranged at intervals or integrally, and the adjacent plurality of second interlayers 220 are arranged at intervals or integrally. For example, as shown in FIG2 , the number of first cavities 101 is two, the number of second cavities 102 is multiple, and at least one of the second cavities 102 is located between the two first cavities 101. Then, the two first interlayers 210 corresponding to the two first cavities 101 are arranged at intervals, and the plurality of second interlayers 220 corresponding to the plurality of second cavities 102 are arranged integrally.

[0075] It is understandable that due to the presence of the support plate 211 and the fact that the first adhesive layer 212 and the second adhesive layer 213 are respectively provided on opposite sides of the support plate 211, the thickness of the first interlayer 210 is thicker than that of the second interlayer 220. Optionally, multiple first interlayers 210 are arranged at intervals, so that the first interlayers 210 are correspondingly arranged at the periphery of the first cavity 101, thereby facilitating the flexible design of the position of the first cavity 101. Among them, when multiple second interlayers 220 are correspondingly arranged at the periphery of the second cavity 102, and multiple second interlayers 220 are arranged as a whole, the second interlayer 220 can cover more areas, further improving the connection strength of the first plate body 110 and the second plate body 120, and helping to improve the flatness of the processed pipeline integrated module 10.

[0076] Because the first interlayer 210 is relatively thick, the embodiment of the present application further provides for at least one of the first plate 110 and the second plate 120 to have a limiting groove 1013. The limiting groove 1013 is used to accommodate the first interlayer 210. This prevents the first interlayer 210 from occupying a large space in the thickness direction A of the pipeline integrated module 10, thereby increasing the distance between the first plate 110 and the second plate 120 and causing the two plates to tear. This also helps reduce the amount of material used in the second interlayer 220. Optionally, the first plate 110 has a limiting groove 1013 arranged around the periphery of the first groove 1011; and / or the second plate 120 has a limiting groove 1013 arranged around the periphery of the second groove 1012.

[0077] When the first plate body 110 has a limiting groove 1013 arranged around the outer periphery of the first groove 1011, specifically, the limiting groove 1013 is opened on the surface of the first plate body 110 facing the second plate body 120, and further, the bottom wall of the limiting groove 1013 is opened with the first groove 1011.

[0078] When the second plate body 120 has a limiting groove 1013 arranged around the outer periphery of the second groove 1012, specifically, the limiting groove 1013 is opened on the surface of the second plate body 120 facing the second plate body 120, and further, the bottom wall of the limiting groove 1013 is opened with the second groove 1012.

[0079] Among them, the limiting groove 1013 is a contoured groove corresponding to the first interlayer 210. The first interlayer 210 is arranged in the limiting groove 1013, and the wall surface of the limiting groove 1013 is limited to contact with the surface of the first interlayer 210, which is convenient for positioning the position of the first interlayer 210 and limiting the position of the first interlayer 210 perpendicular to the thickness direction A of the pipeline integrated module 10.

[0080] Optionally, a plurality of docking openings 111 are provided on one surface of the first plate 110 or the second plate 120. The first cavity 101 is connected to at least one of the docking openings 111, and the second cavity 102 is connected to at least one of the docking openings 111. A docking pipe 300 is plugged into each docking opening 111. In the embodiment of the present application, the docking pipes 300 are centrally installed on the first plate 110 or the second plate 120 to facilitate improving the integration of the multiple docking pipes 300. For example, the docking openings 111 are provided on the surface of the first plate 110 facing away from the second plate 120, and the limiting grooves 1013 arranged around the periphery of the second groove 1012 are provided on the surface of the second plate 120 facing the first plate 110.

[0081] Among them, in order to improve the flatness of the pipeline integrated module 10 processed between the first interlayer 210 and the second interlayer 220 connected to the first plate body 110 and the second plate body 120, in the covering direction of the first plate body 110 and the second plate body 120 (that is, the thickness direction A of the pipeline integrated module 10), the depth of the limiting groove 1013 is H, the thickness of the first interlayer 210 is h1, and the thickness of the second interlayer 220 is h2, wherein H+h2=h1, to prevent the thickness of the first interlayer 210, the thickness of the second interlayer 220 and the depth of the limiting groove 1013 from not matching, and gaps appearing at the connections, resulting in unstable connection between the first plate body 110 and the second plate body 120.

[0082] Optionally, H satisfies: 0.2 mm ≤ H ≤ 0.5 mm, so as to facilitate machining the limiting groove 1013 on the surface of the first plate body 110 or the second plate body 120 and meet the limiting requirement of the limiting groove 1013 on the first interlayer 210 .

[0083] Optionally, in the covering direction of the first plate 110 and the second plate 120, the thickness of the first adhesive layer 212 is n1, where n1 satisfies the following conditions: 0.05 mm ≤ n1 ≤ 1 mm; the thickness of the second adhesive layer 213 is n2, where n2 satisfies the following conditions: 0.05 mm ≤ n2 ≤ 1 mm; and the thickness of the second interlayer 220 is h2, where h2 satisfies the following conditions: 0.05 mm ≤ h2 ≤ 1 mm. Furthermore, n1 ≤ h2 and n2 ≤ h2, and n1 and n2 may or may not be equal. Among them, n1 is the thickness of the first adhesive layer 212 that does not extend between the first stamping chamfer 101a and the support plate 211, n2 is the thickness of the second adhesive layer 213 that does not extend between the second stamping chamfer 101b and the support plate 211, h1 is the thickness of the first interlayer 210 that does not extend between the first stamping chamfer 101a and the second stamping chamfer 101b, and h2 is the thickness of the second interlayer 220 that does not extend between the third chamfer and the fourth chamfer.

[0084] In an embodiment of the present application, the thickness of the first adhesive layer 212 is filled to the portion between the first stamped chamfer 101a and the support plate 211, the thickness of the second adhesive layer 213 is filled to the portion between the second stamped chamfer 101b and the support plate 211, and the thickness of the second interlayer 220 is filled to the portion between the third chamfer and the fourth chamfer. The specific thickness can be determined according to the stamping angle of the stamped chamfers at each location, and the higher the filling degree at each location, the better the compressive resistance of each connection and the lower the risk of tearing. For example, the stamping angles at the first stamping chamfer 101a, the second stamping chamfer 101b, the third chamfer 201a and the fourth chamfer 201b are 90°, and the radius of the stamping chamfer is 5 mm. Then, the thickness x1 of the first adhesive layer 212 filled between the first stamping chamfer 101a and the support plate 211 can be 1.274 mm, the thickness x2 of the second adhesive layer 213 filled between the second stamping chamfer 101b and the support plate 211 can be 1.353 mm, the thickness x3 of the second interlayer 220 filled between the third chamfer 201a and the fourth chamfer 201b can be 0.999 mm, and h2 can be 0.072 mm.

[0085] In an embodiment of the present application, the first interlayer 210 is arranged to extend to fill the gap between the first stamped chamfer 101a and the second stamped chamfer 101b, and the second interlayer 220 is also arranged to fill the gap between the third chamfer 201a and the fourth chamfer 201b. Even if there is frequent reversal of the fluid entering and exiting the first cavity 101 and the second cavity 102, the pipeline integrated module 10 still has good pressure resistance and stability.

[0086] As shown in Figure 5, the first cavity 101 and the second cavity 102 are respectively connected to the connecting pipes 300 of different outdoor units. For example, the fluid entering the first cavity 101 from one of the connecting pipes 300 is reversed in the first cavity 101 and then flows out of the first cavity 101 from the other connecting pipe 300 and is transported to other structures; the fluid entering the second cavity 102 from one of the connecting pipes 300 is reversed in the second cavity 102 and then flows out of the second cavity 102 from the other connecting pipe 300 and is transported to other structures. The first cavity 101 and its corresponding connecting pipe 300, and the second cavity 102 and its corresponding connecting pipe 300 form two independent passages. The above is only an exemplary introduction. The specific connecting pipe 300 connecting the first cavity 101 and the second cavity 102 can be selected according to actual needs, and this application does not limit this.

[0087] In the case of multiple fluid reversals, the flow resistance of the fluid is relatively large, which has a great impact on the pipe 300 and the module body 100, resulting in a large pressure loss of the pipe integration module 10 and easily generating a large noise.

[0088] As shown in Figures 6 and 7, the module body 100 has an internal accommodating cavity 20, one of which is the first cavity 101 described above, and the other is the second cavity 102 described above. One of the docking openings 111 provided on the outer surface of the module body 100 is a first opening 23, through which fluid can enter and exit the accommodating cavity 20. Specifically, the accommodating cavity 20 has a first flow segment 21. The outer surface of the module body 100 is provided with a first opening 23 that is connected to the first flow segment 21. The opening direction of the first opening 23 forms an angle with the flow direction of the first flow segment 21, and the fluid can reverse in the area between the first opening 23 and the first flow segment 21. For example, the fluid passing through the first opening 23 can reverse and flow to other areas of the accommodating cavity 20 through the first flow segment 21, or the fluid in the accommodating cavity 20 can reverse and flow out of the accommodating cavity 20 through the first flow segment 21. Among them, when the fluid changes direction in the area between the first opening 23 and the first flow section 21, it has a large flow resistance, which produces a large impact force on the wall surface of the module body 100 that defines the accommodating cavity 20 and generates noise. Frequent and long-term impacts will cause damage to the module body 100.

[0089] As shown in FIG7 , in the embodiment of the present application, the first butt joint tube 310 includes a first tube section 311 and a second tube section 312, which are arranged at an angle. The first tube section 311 extends into the first flow section 21 and is connected to the wall surface of the module body 100 defining the first flow section 21. The second tube section 312 passes through the first opening 23 and extends outside the accommodating cavity 30 to connect to the external tube section 330. The second tube section 312 is also connected to the wall surface of the module body 100 defining the first opening 23. In this way, fluid can enter and exit the accommodating cavity 20 through the first butt joint tube 310. When passing through the first butt joint tube 310, the fluid gradually changes direction under the guidance of the first butt joint tube 310, reducing the formation of turbulence and other flow domains that increase flow resistance when the fluid suddenly changes direction at the first flow section 21. This effectively reduces the flow resistance of the fluid entering and exiting the accommodating cavity 20 and reduces the impact force of the fluid on the module body 100. In addition, by designing the size of the angle between the first pipe section 311 and the second pipe section 312, the turbulence of the fluid reversal in the first butt joint 310 can also be pre-designed to reduce the flow resistance of the fluid in the first butt joint 310, and to regulate the flow direction and flow rate of the fluid in and out of the first butt joint 310, so that the fluid can flow more smoothly from the first butt joint 310 to the accommodating chamber 20, or, alternatively, the fluid in other areas of the accommodating chamber 20 can enter the first butt joint 310 more smoothly.

[0090] Optionally, the first connecting pipe 310 also includes a transition pipe section 313 connected between the first pipe section 311 and the second pipe section 312. The transition pipe section 313 is used to guide the fluid to flow more smoothly between the first pipe section 311 and the second pipe section 312. For example, the transition pipe section 313 can be a straight pipe or an arc-shaped pipe.

[0091] When a fluid flows through various locations within the internal flow channel of a cavity or pipe, it has a flow direction and a flow area. The flow area is the area of ​​the cross section of the cavity or internal flow channel perpendicular to the flow direction of the fluid. Optionally, the flow area of ​​the first pipe segment 311 is equal to the flow area of ​​the second pipe segment 312. Correspondingly, the flow area of ​​the transition pipe segment 313 is equal to the flow areas of the first pipe segment 311 and the second pipe segment 312. In other embodiments, the flow area of ​​the first pipe segment 311 and the flow area of ​​the second pipe segment 312 may not be equal. For example, the flow area of ​​the first pipe segment 311 is greater than the flow area of ​​the second pipe segment 312. Correspondingly, the flow area of ​​the transition pipe segment 313 gradually decreases in the flow direction from the first pipe segment 311 to the second pipe segment 312. For example, the transition pipe segment 313 may be funnel-shaped or trumpet-shaped.

[0092] The fluid flows in the first pipe segment 311 along the axial direction of the first pipe segment 311, and the fluid flows in the second pipe segment 312 along the axial direction of the second pipe segment 312. The angle between the axial direction of the first pipe segment 311 and the axial direction of the second pipe segment 312 is α, and α satisfies: 60°≤α≤120°. In the embodiment of the present application, α is 90°, which is convenient for processing the first butt joint pipe 310 and reducing the flow resistance of the fluid in the first butt joint pipe 310. At the same time, when laying out the pipeline, the space occupied by the first butt joint pipe 310 can be reduced, so as to facilitate the layout of the installation positions of other pipelines or other structural parts.

[0093] Optionally, the outer peripheral wall of the first pipe section 311 is sealedly connected to the wall surface of the module body 100 that defines the first flow section 21, so that the fluid in the accommodating cavity 20 can completely enter the first docking tube 310 when flowing into the first docking tube 310, and flow out of the pipeline integrated module 10 after being guided by the first docking tube 310, thereby reducing the flow resistance of the fluid flowing out of the pipeline integrated module 10.

[0094] The accommodating chamber 20 includes a second flow section 22 connected to the first flow section 21. The flow area at the intersection of the second flow section 22 and the first flow section 21 is a1, and the flow area of ​​the second flow section 22 is a2, where a2>a1. The accommodating chamber 20 also includes the second flow section 22, allowing the accommodating chamber 20 to have more space for accommodating fluid. Optionally, the flow area of ​​the first flow section 21 is smaller than that of the second flow section 22. This facilitates matching the required diameter of the first butting pipe 310 and facilitates the provision of a connection structure to improve the installation stability of the first pipe section 311 within the first flow section 21. In other embodiments, the flow area of ​​the second flow section 22 may also be equal to that of the first flow section 21.

[0095] In conjunction with Figures 6 and 7, in the axial direction of the first pipe section 311, the first pipe section 311 has a diversion opening end 210a away from the second pipe section 312, and the diversion opening end 210a is arranged toward the second flow section 22, so that the fluid passing through the diversion opening end 210a can directly enter and exit the second flow section 22. Optionally, the first flow section 21 and the first pipe section 311 are coaxially arranged, and the first flow section 21 and the second flow section 22 both have a central axis and the central axes of the two are parallel. In this way, when the fluid enters and exits the second flow section 22 through the first pipe section 311, the flow resistance is smaller. Furthermore, the central axes of the first flow section 21 and the second flow section 22 are collinear, so that the fluid flows more smoothly in the accommodating chamber 20 and the flow resistance is smaller.

[0096] Optionally, when the flow area a1 at the intersection of the second flow segment 22 and the first flow segment 21 is smaller than the flow area a2 of the second flow segment 22, in the flow direction of the second flow segment 22 toward the first flow segment 21, at least part of the flow area of ​​the second flow segment 22 gradually decreases. Furthermore, the flow area of ​​the region where the second flow segment 22 is connected to the first flow segment 21 gradually decreases, thereby preventing the occurrence of water flow instability caused by a sudden change in the pressure of the fluid due to a sudden change in the flow area, thereby effectively reducing the flow resistance.

[0097] In order to improve the installation stability of the first pipe section 311 installed in the first flow section 21, the area where the first pipe section 311 is connected to the module body 100 can be increased. For example, the length of the first pipe section 311 can be increased, and the outer peripheral wall of the first pipe section 311 is all connected to the wall surface of the module body 100 that defines the first flow section 21. By adopting at least one of these two design methods, the connection area can be increased to improve the installation stability of the first pipe section 311. It can be understood that when the fluid flows at the transition between two interfaces, the smoother the transition between the two interfaces, the more stable the flow state of the fluid flowing through the interface transition, and the smaller the flow resistance. In the embodiment of the present application, the guide opening end 210a is provided at the junction of the first flow section 21 and the second flow section 22; or, the guide opening end 210a is provided in the first flow section 21, so that the first pipe section 311 does not extend into the second flow section 22, thereby reducing the flow resistance and improving the smoothness of the fluid flow.

[0098] As shown in FIG8 , the module body 100 includes a plurality of raised portions 1101 that define the accommodating cavity 20. In the thickness direction A of the module body 100, the raised portions 1101 protrude toward one side of the module body 100, or toward opposite sides of the module body 100, thereby increasing the capacity of the accommodating cavity 20.

[0099] The raised portion 1101 includes a first convex hump 1111, a first convex tube 1112 connected to the first convex hump 1111, and a second convex tube 1113 connected to the first convex tube 1112. The first convex hump 1111 defines a reversing space 24, having a first opening 23 communicating with the reversing space 24. The first convex tube 1112 defines a first flow segment 21 communicating with the reversing space 24, and the second convex tube 1113 defines a second flow segment 22 communicating with the first flow segment 21. When the pipeline integration module 10 is not provided with the first docking tube 310, fluid enters the reversing space 24 through the first opening 23, reverses direction in the reversing space 24, and flows sequentially to the first flow segment 21 and the second flow segment 22. Within the reversing space 24, the fluid impacts the wall of the first convex hump 1111 and suddenly reverses direction, easily forming vortices within the reversing space 24 and resulting in high flow resistance. In this embodiment of the present application, the first pipe section 311 is connected to the wall surface of the first protruding pipe 1112 that defines the first flow section 21, and the second pipe section 312 is connected to the wall surface of the first convex bump 1111 that defines the first opening 23. This ensures that the first butt joint pipe 310 is stably fixed to the module body 100, preventing the portion of the first butt joint pipe 310 housed within the accommodating cavity 20 from shaking and causing noise when fluid passes through due to an unstable connection. Furthermore, the second pipe section 312 is sealedly connected to the wall surface of the first convex bump 1111 that defines the first opening 23, preventing substances from entering or exiting the accommodating cavity 20 through the first opening 23.

[0100] Optionally, in the thickness direction A of the module body 100, the first protrusions 1111 protrude toward opposite sides of the module body 100. When the first butting tube 310 further includes a transition tube section 313, the reversing space 24 of the first protrusion 1111 is sufficiently large to accommodate the transition tube section 313. The outer peripheral wall of the transition tube section 313 may be spaced apart from the inner wall of the first protrusion 1111; alternatively, the outer peripheral wall of the transition tube section 313 may be connected to the first protrusion 1111 to directly secure the transition tube section 313 to the first protrusion 1111. The above two installation methods can prevent the transition pipe section 313 from vibrating and colliding with the first bulge 1111 to generate noise when the transition pipe section 313 is in contact with the first bulge 1111. For example, the situations that cause the transition pipe section 313 to vibrate include: the fluid flows to the transition pipe section 313, causing the transition pipe section 313 to vibrate; or, sound insulation and noise reduction material is arranged between the inner wall surface of the first bulge 1111 and the outer wall surface of the transition pipe section 313, further reducing the noise at the fluid turning point and preventing vibration noise, wherein the sound insulation and noise reduction material can be sponge, foam and other materials.

[0101] Optionally, as shown in Figure 9, the raised portion 1101 also includes a first flange 1211 arranged around the periphery of the first opening 23. Specifically, the first flange 1211 is connected to the first bulge 1111, and in the opening direction of the first opening 23, the first flange 1211 extends toward a side away from the first bulge 1111. When the second pipe segment 312 is installed at the first opening 23, the first flange 1211 is also connected to the outer wall of the second pipe segment 312, thereby increasing the connection area between the second pipe segment 312 and the module body 100, and improving the installation stability of the second pipe segment 312.

[0102] Optionally, as shown in Figure 9, in the extension direction of the first flange 1211, the height of the first flange 1211 is P, and P satisfies: 1mm≤P≤4mm. For example, P can be 1mm, 2mm, 2.5mm, 3mm or 4mm, etc., so that the connection area between the first flange 1211 and the second tube section 312 is appropriate, thereby improving the connection stability and facilitating the formation of a good seal at the first flange 1211 to prevent substances from entering and exiting the accommodating cavity 20 between the first flange 1211 and the second tube section 312.

[0103] The module body 100 of the embodiment of the present application includes a first plate body 110 and a second plate body 120 that are covered and connected, at least one of the first plate body 110 and the second plate body 120 has a groove, and a receiving cavity 20 for the circulation of heat exchange medium is formed at the groove of the first plate body 110 and the groove of the second plate body 120.

[0104] When the first plate body 110 has a groove, the groove of the first plate body 110 is a first groove 1011. Optionally, the first plate body 110 has a first convex portion 1110 that protrudes in a direction away from the second plate body 120. The first convex portion 1110 defines the first groove 1011. The wall surface of the first groove 1011 and the wall surface corresponding to the second plate body 120 and the first groove 1011 jointly define a accommodating cavity 20 for the circulation of heat exchange medium, and the first convex portion 1110 and the corresponding part of the second plate body 120 jointly form a convex portion 1101.

[0105] When the second plate body 120 has a groove, the groove of the second plate body 120 is a second groove 1012. Optionally, the second plate body 120 has a second protrusion 1210 that protrudes away from the first plate body 110. The second protrusion 1210 defines the second groove 1012. The wall surface of the second groove 1012 and the wall surface corresponding to the first plate body 110 and the second groove 1012 jointly define a accommodating cavity 20 for the circulation of heat exchange medium, and the second protrusion 1210 and the corresponding part of the first plate body 110 jointly form a protrusion 1101.

[0106] When both the first plate 110 and the second plate 120 have grooves, the groove of the first plate 110 is the first groove 1011, and the groove of the second plate 120 is the second groove 1012. Optionally, the first plate 110 has a first protrusion 1110 that protrudes in a direction away from the second plate 120, and the first protrusion 1110 defines the first groove 1011. The second plate 120 has a second protrusion 1210 that protrudes in a direction away from the first plate 110, and the second protrusion 1210 defines the second groove 1012. The first groove 1011 and the second groove 1012 together form the accommodating chamber 20, and the first protrusion 1110 and the second protrusion 1210 together form the raised portion 1101. This facilitates expansion of the accommodating chamber 20, increases the flow area of ​​the accommodating chamber 20, and increases the volume of fluid that the accommodating chamber 20 can accommodate.

[0107] As shown in Figures 9 and 10 , the first plate 110 further includes a first flat portion 1120 connected to the first protrusion 1110. The second plate 120 further includes a second flat portion 1220 connected to the second protrusion 1210. When the first plate 110 and the second plate 120 are overlapped, the plywood layer 200 is connected between the first flat portion 1120 and the second flat portion 1220 to seal the gap between the first and second flat portions 1120, 1220. The first protrusion 1110 is provided on the surface of the first flat portion 1120 facing away from the second plate 120, and the second protrusion 1210 is provided on the surface of the second flat portion 1220 facing away from the first plate 110.

[0108] Optionally, when the pipeline integration module 10 includes multiple accommodating cavities 20, the first interlayer 210 is disposed around a portion of the multiple accommodating cavities 20 and connected to the first plate body 110 and the second plate body 120 to form a sealed structure between the first plate body 110 and the second plate body 120; the second interlayer 220 is disposed around another portion of the accommodating cavities 20 and connected to the first plate body 110 and the second plate body 120 to form a sealed structure between the first plate body 110 and the second plate body 120. For example, when the capacity of one accommodating cavity 20 is larger than the capacity of the other accommodating cavity 20, the first interlayer 210 can be disposed around the accommodating cavity 20 with the larger capacity, and the second interlayer 220 can be disposed around the accommodating cavity 20 with the smaller capacity.

[0109] The first plate 110 may include one or more first protrusions 1110 , and the second plate 120 may include one or more second protrusions 1210 . The first plate 110 and the second plate 120 may cover each other to define one or more accommodating cavities 20 for circulating the heating medium.

[0110] The outer surface of the first plate 110 is provided with a first opening 23, which communicates with the first groove 1011. During assembly, the second pipe section 312 of the first connecting pipe 310 is first extended through the first opening 23 to the outside of the accommodating cavity 30 and connected to the external pipe 330. The second pipe section 312 is then fixed to the wall of the first plate 110 defining the first opening 23. The second plate 120 is then covered and fixed to the first plate 110, and the first pipe section 311 is fixed to the first and second plates 110, completing the assembly. The outer surface of the first pipe section 311 is respectively aligned with the walls of the first and second plates 110, 120. This allows the first pipe section 311 to pre-position the second plate 120 relative to the first plate 110 when the second plate 120 is covered on the first plate 110, preventing the second plate 120 from moving relative to the first plate 110 in a plane perpendicular to the thickness direction A of the module body 100, thereby facilitating assembly.

[0111] In some embodiments, the portion of the second pipe section 312 extending out of the accommodating cavity 20 is made of copper or a copper alloy, and the external pipe section 330 is primarily composed of copper. The second pipe section 312 and the external pipe section 330 can be integrally connected by heat-melting. Optionally, the first butt joint pipe 310 is a pipe made of copper or a copper alloy that is integrally bent, with the first pipe section 311 and the second pipe section 313 forming the respective ends of the first butt joint pipe 310.

[0112] In some embodiments, the portion of the second tube segment 312 extending out of the accommodating cavity 20 is made of aluminum or an aluminum alloy, and the external tube 330 is primarily composed of aluminum. The second tube segment 312 and the external tube 330 can be integrally connected by heat-fusion. Alternatively, the first butt joint tube 310 is formed by bending a tube made of aluminum or an aluminum alloy, with the first tube segment 311 and the second tube segment 312 forming the respective ends of the first butt joint tube 310.

[0113] In some embodiments, the portion of the second pipe segment 312 extending from the accommodating cavity 320 is made of stainless steel, and the external connecting pipe 330 is a stainless steel pipe or a copper refrigerant pipe whose main portion is made of copper. The stainless steel portion of the second pipe segment 312 is connected to the external connecting pipe 330 via a connector (not shown), the main component of which is copper. Optionally, the connector is a copper sleeve or copper plating, and is disposed on the circumference of the portion of the second pipe segment 312 extending from the accommodating cavity 20. Optionally, the first connecting pipe 310 is formed by bending a stainless steel pipe in one piece, with the first pipe segment 311 and the second pipe segment 312 forming the two ends of the first connecting pipe 310, respectively.

[0114] Optionally, the first butt joint pipe 310 is secured to the module body 100 by welding. For example, the first pipe segment 311 is welded to the wall of the module body 100 defining the first flow segment 21, and the second pipe segment 312 is welded to the wall of the module body 100 defining the first opening 23. This facilitates assembly and improves the stability of the first butt joint pipe 310 when mounted on the module body 100. Specifically, solder is filled into the gap between the first pipe segment 311 and the first plate 110 and the gap between the second pipe segment 312 and the second plate 120, and then the two are connected by welding. Solder is also filled into the gap between the second pipe segment 312 and the first plate 110, and then the two are connected by welding.

[0115] Optionally, as shown in FIG11 , a second opening 31 communicating with the accommodating cavity 20 is formed on the surface of the module body 100. The pipeline integrated module 10 further includes a second butt joint pipe 320, which passes through the second opening 31 and is fixed to the wall of the module body 100 defining the second opening 31. As shown in FIG11 , the second butt joint pipe 320 can extend into the accommodating cavity 20. The length of the second butt joint pipe 320 extending into the accommodating cavity 20 is L, where L satisfies the following conditions: 0 ≤ L ≤ 5 mm. Furthermore, the end of the second butt joint pipe 320 extending into the accommodating cavity 20 is spaced apart from the wall of the module body 100 defining the accommodating cavity 20 to prevent the end of the second butt joint pipe 320 from being blocked and increasing flow resistance.

[0116] Furthermore, the raised portion 1101 also includes a second flange 1212 arranged around the second opening 31. The second flange 1212 extends in the direction away from the accommodating cavity 20 in the opening direction of the second opening 31, and the second flange 1212 is connected to the outer peripheral wall of the second butt joint tube 320. Specifically, the gap between the second flange 1212 and the outer peripheral wall of the second butt joint tube 320 is filled with solder, and then the connection is fixed by welding. As shown in Figure 11, in the extension direction of the second flange 1212, the height of the second flange 1212 is B, and B satisfies: 1mm≤B≤4mm. For example, B can be 1mm, 2mm, 2.5mm, 3mm or 4mm, etc., so that the connection area between the second flange 1212 and the second butt joint tube 320 is appropriate, the connection stability is improved, and a good seal is formed.

[0117] Optionally, the openings communicating with the same accommodating cavity 20 include at least one first opening 23 and at least one second opening 31, a first docking tube 310 is provided at the first opening 23, and no first docking tube 310 is provided at the second opening 31. For example, please refer to Figures 1 and 2 again. The openings communicating with the same accommodating cavity 20 include a first opening 23 and a second opening 31, and the fluid enters the accommodating cavity 20 from the first opening 23 and flows out of the accommodating cavity 20 from the second opening 31; or, the openings communicating with the same accommodating cavity 20 are all first openings 23 and there are multiple openings. For example, the number of first openings 23 communicating with the same accommodating cavity 20 is two, and the fluid enters the accommodating cavity 20 from one of the first openings 23 and flows out of the accommodating cavity 20 from the other second opening 31.

[0118] When the openings communicating with the same accommodating cavity 20 include a first opening 23 and a second opening 31, the opening orientation of the first opening 23 is the same as the opening orientation of the second opening 31. For example, the first opening 23 and the second opening 31 are both provided on the outer surface of the first plate 110, and the first and second connecting pipes 310 and 320 are assembled on the same side of the module body 100. Optionally, the first opening 23 communicates with the first flow section 21 of the accommodating cavity 20, and the second opening 31 communicates with the second flow section 22 of the accommodating cavity 20. When the flow area of ​​the second flow section 22 is greater than the flow area of ​​the first flow section 21, the pipeline integrated module 10 further includes a fluid handling structure 500. The fluid handling structure 500 is disposed within the second flow section 22 and corresponding to the second opening 31, allowing all fluid to enter and exit the second opening 31 through the fluid handling structure 500. The fluid handling structure 500 may include a filter or an oil separation assembly.

[0119] Optionally, the first flow segment 21 and the second flow segment 22 are coaxially arranged, the first flow segment 21 is connected to one end of the second flow segment 22, the end of the first flow segment 21 away from the second flow segment 22 is connected to the first opening 23, the end of the second flow segment 22 away from the first flow segment 21 is closed, and the second opening 31 is opened in a direction at an angle to the axis of the second flow segment 22. In this case, the fluid will pass through the first flow segment 21 at the first opening 23 and enter the second flow segment 22, and be squeezed out of the second flow segment 22 at the second opening 31. In this way, the flow of the fluid in the second flow segment 22 is smoother, and when the fluid flows out of the second flow segment 22, the flow pressure is increased due to the decrease in the flow area, which leads to an increase in flow resistance. The second opening 31 can be opened corresponding to the middle part of the second flow segment 22; or the second opening 31 can be opened adjacent to the end of the second flow segment 22 away from the first flow segment 21.

[0120] In an embodiment of the present application, all first openings 23 and all second openings 31 are opened toward the same side of the module body 100. For example, the first openings 23 and the second openings 31 are all opened on the first plate body 110, which is convenient for arranging the installation positions of the first docking tube 310 and the second docking tube 320, thereby improving the integration of the pipeline integration module 10.

[0121] Optionally, the second pipe section 312 extends out of the first opening 23 along the opening direction of the first opening 23 and is connected to other functional components of the outdoor unit; or, the first docking pipe 310 also includes a third pipe section, which is connected to the second pipe section 312 at an angle, and one end of the third pipe section 230 is connected to the part of the second pipe section 312 extending out of the first opening 23, and the other end of the third pipe section 230 is connected to other functional components of the outdoor unit.

[0122] Optionally, the second docking tube 320 is a straight tube, and one end of the second docking tube 320 is directly installed at the second opening 31, and the other end of the second docking tube 320 is connected to other functional components of the outdoor unit; or, the second docking tube 320 is a bent tube, that is, the second docking tube 320 includes two sections connected at an angle, one section of the second docking tube 320 is installed at the second opening 31, and the other section of the second docking tube 320 is connected to other functional components of the outdoor unit.

[0123] It should be noted that Figures 1 and 8 are structural schematic diagrams of the pipeline integration module 10 of two embodiments of the present application. The number and shape of the accommodating cavities 20 of the pipeline integration module 10 in Figures 1 and 8 are different, but both Figures 1 and 8 can be provided with multiple first openings 23 and multiple second openings 31. Correspondingly, each first opening 23 is provided with a first docking tube 310, and each second opening 31 is provided with a second docking tube 320. Regarding the number and position of the first opening 23 and the multiple second openings 31, the embodiment of the present application does not limit this, and the specific selection can be made according to actual needs.

[0124] The module body 100 of the embodiment of the present application includes a plurality of accommodating cavities 20, and two accommodating cavities 20 are arranged at intervals, or the accommodating cavities 20 are connected by pipelines. The present application does not limit the number of accommodating cavities 20 of the module body 100 or the connectivity between the two cavity accommodating cavities 20, and the specific selection can be made according to actual needs.

[0125] Optionally, referring to FIG. 8 again, the module body 100 includes three accommodating cavities 20 , one of which is a first cavity 201 , one is a second cavity 202 , and another is a third cavity 203 .

[0126] The module body 100 has a first opening 23 and a second opening 31 connected to the first cavity 201. A filter screen is provided in the first cavity 201 corresponding to the second opening 31. The fluid enters the first cavity 201 from the first docking tube 310 at the first opening 23, and flows out of the first cavity 201 from the second docking tube 320 at the second opening 31 after being filtered by the filter screen.

[0127] The module body 100 has a first opening 23 and a second opening 31 communicating with the second cavity 202 . Fluid enters the second cavity 202 from a first connecting pipe 310 at the first opening 23 and flows out of the second cavity 202 from a second connecting pipe 320 at the second opening 31 .

[0128] The module body 100 has two first openings 23 communicating with the third chamber 203. A first connecting pipe 310 at one of the first openings 23 of the third chamber 203 communicates with a second connecting pipe 320 at the second opening 31 of the second chamber 202. Furthermore, a first electronic expansion valve 510 is connected between the second connecting pipe 320 and the first connecting pipe 310. The first electronic expansion valve 510 regulates the flow rate of fluid between the second chamber 202 and the third chamber 203. Fluid flowing out of the second chamber 202 through the second connecting pipe 320 at the second opening 31 enters the third chamber 203 through the first connecting pipe 310 at one of the first openings 23 and flows out of the third chamber 203 through the first connecting pipe 310 at the other first opening 23.

[0129] The above is only an exemplary introduction to the connection method of the three accommodating cavities 20 when the module body 100 includes three accommodating cavities 20. In the embodiment of the present application, the number of accommodating cavities 20 of the module body 100 and the connection method of the accommodating cavities 20 include but are not limited to the embodiment method shown above, and the specific selection can be made according to actual needs.

[0130] In other embodiments, the module body 100 has two second openings 31 communicating with the second cavity 202 , and the fluid enters the second cavity 202 from the second docking tube 320 at one of the two second openings 31 and flows out of the second cavity 202 from the second docking tube 320 at the other of the two second openings 31 .

[0131] Alternatively, the module body 100 has two second openings 31 communicating with the third cavity 203 , and the fluid enters the third cavity 203 from the second connecting tube 320 at one of the two second openings 31 and flows out of the third cavity 203 from the second connecting tube 320 at the other of the two second openings 31 .

[0132] Alternatively, the module body 100 has a first opening 23 and a second opening 31 communicating with the third cavity 203 , and the fluid enters the third cavity 203 from the first connecting tube 310 at the first opening 23 and flows out of the third cavity 203 from the second connecting tube 320 at the second opening 31 .

[0133] The impact of fluid reversal on the plate walls can easily cause the plates to vibrate and generate noise. Optionally, the integrated pipeline module also includes a sound insulator 400, which is attached to the outer surface of the module body 100. Specifically, as shown in Figures 12 and 13, the sound insulator 400 includes a first sound insulating portion 410 and a second sound insulating portion 420. The first sound insulating portion 410 is located on the surface of the first plate 110 facing away from the second plate 120, and the second sound insulating portion 420 is located on the surface of the second plate 120 facing away from the first plate 110. In the thickness direction A of the module body 100, the first sound insulating portion 410 at least partially overlaps with the first and second cavities 101, 102, respectively. The provision of the first and second sound insulating portions 410, 420 effectively reduces noise radiation caused by fluid reversal within the first and second cavities 101, 102. The pipe integration module 10 is typically installed within the interior space of the outdoor unit's housing. When installed within the outdoor unit, the low-noise pipe integration module 10 reduces noise levels throughout the outdoor unit during operation, minimizing the impact of noise on people's lives. The first and second sound insulation sections 410, 420 are located on the exterior surface of the module body 100, simplifying installation. Being located on the surface of the pipe integration module 10 effectively reduces noise radiation from the module. Furthermore, the first and second sound insulation sections 410, 420 are positioned relative to the accommodating cavity 20, specifically blocking noise from high-noise areas of the pipe integration module 10, thereby effectively reducing noise radiation from the module.

[0134] Optionally, the first sound insulation part 410 and the second sound insulation part 420 are separately provided, the first sound insulation part 410 is a sound insulation coating or a sound insulation block, and the second sound insulation part 420 is a sound insulation coating or a sound insulation block.

[0135] Optionally, the module body 100 includes a raised portion 1101, which defines the accommodating cavity 20. The raised portion 1101 includes a docking bump 131, which defines the docking opening 111. The first bump 1111 or the second raised tube 1113 described above may be the docking bump 131. The docking bump 131 defines the wall surface of the docking opening 111, which is used to connect with the docking pipe 300 inserted into the docking opening 111, thereby securing the docking pipe 300 to the docking bump 131. For example, the docking pipe 300 is welded to the docking bump 131. Optionally, the first sound insulation portion 410 avoids the docking bump 131 to facilitate installation of the docking pipe 300 at the docking opening 111.

[0136] Optionally, the raised portion 1101 further includes a convex flange 132. The first flange 1211 or the second flange 1212 described above may be the convex flange 132. The convex flange 132 is disposed around the periphery of the docking opening 111 and on a side of the docking convex portion 131 away from the accommodating cavity 20. The convex flange 132 is configured to connect with the docking pipe 300 plugged into the docking opening 111. The convex flange 132 improves the installation stability of the docking pipe 300 at the docking opening 111. For example, the docking pipe 300 is welded and fixed to the convex flange 132.

[0137] When the docking pipe 300 includes a first pipe section 310 and a second pipe section 320 arranged at an angle, the accommodating chamber 20 includes a first flow section 12 and a second flow section 13. One end of the first flow section 12 communicates with the space defined by the docking protrusion 131, and the other end communicates with the second flow section 13. The flow direction of the first flow section 12 forms an angle with the opening direction of the docking opening 111 defined by the docking protrusion 131. The first pipe section 310 extends into the first flow section 12 and is connected to the wall of the module body defining the first flow section 12. The second pipe section 320 passes through the docking opening 111 and is connected to the wall of the docking protrusion 131 defining the docking opening 111. In this way, fluid can enter and exit the accommodating cavity 20 through the docking pipe 300. As the fluid passes through the docking pipe 300, it gradually changes direction under the guidance of the docking pipe 300, reducing the flow resistance of the fluid in and out of the accommodating cavity 20 and the impact force of the fluid on the module body, effectively reducing the noise generated by the fluid flowing within the accommodating cavity 20. Furthermore, in the thickness direction A of the module body 100, the first sound insulation portion 410 overlaps with the first flow segment 12 and the second flow segment 13 respectively; and / or the second sound insulation portion 420 overlaps with the first flow segment 12 and the second flow segment 13 respectively. This can reduce noise radiation from high-noise areas of the module body 100. Furthermore, in the thickness direction A of the module body 100, the first sound insulation portion 410 avoids the docking protrusion 131 and covers the remaining portion of the first surface 112.

[0138] It is understandable that in the related art, the thickness of the first plate 110 and the second plate 120 are both relatively thin, and in order to integrate multiple docking pipes 300, the plate surface of the first plate 110 and the second plate 120 is also larger. In this case, the first plate 110 and the second plate 120 are more likely to vibrate and generate noise. In this embodiment of the present application, a noise reduction structure is provided on the outer surfaces of the first plate 110 and the second plate 120, which can effectively reduce noise radiation. Among them, the thickness of the first plate 110 and the second plate 120 can be the same or different. For example, the thickness of the first plate 110 and the second plate 120 is the same and both are 1.2 mm. The embodiment of the present application does not limit the thickness of the first plate 110 and the second plate 120, and the specific selection can be made according to actual needs.

[0139] 12 and 13 , when the first sound insulation portion 410 is connected to the first surface 112, the portion of the first sound insulation portion 410 provided on the outer surface of the first protrusion 1110 is a conformal structure corresponding to the first protrusion 1110. When the second sound insulation portion 420 is connected to the second surface, the portion of the second sound insulation portion 420 provided on the outer surface of the second protrusion 1210 is a conformal structure corresponding to the second protrusion 1210. Alternatively, when the first and second plates 110 and 120 have other special-shaped structures, the portions of the first and second sound insulation portions 410 and 420 provided on the outer surfaces of the special-shaped structures are conformal structures corresponding to the special-shaped structures. This allows the sound insulation member 400 to better fit the module body 100 and enhance the noise reduction effect.

[0140] Optionally, the sound insulation member 400 is a sound insulation coating, and the sound insulation member 400 can be sprayed or brushed on the outer surface of the module body 100, so that the sound insulation member 400 can be more tightly and fitly connected to the outer surface of the module body 100, thereby improving the noise reduction effect of the sound insulation member 400.

[0141] Furthermore, in the thickness direction A of the module body 100, the sound insulation coating has a thickness of h1, where h1 satisfies the following: 3 mm ≤ h1 ≤ 8 mm. For example, h1 can be 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, or 8 mm, or a thickness between these two values. Within the thickness range of 3 mm ≤ h1 ≤ 8 mm, the sound insulation coating can effectively reduce noise in the module body 100.

[0142] Optionally, the sound insulation member 400 is a sound insulation block, which is bonded or adhered to the outer surface of the module body 100. When the sound insulation block is bonded to the outer surface of the module body 100, the pipeline integration module 10 further includes an adhesive layer bonded between the sound insulation block and the module body 100. When the sound insulation block is adhered to the outer surface of the module body 100, the sound insulation block can be abutted against the outer surface of the module body 100 with the aid of other external structures, or the pipeline integration module 10 can be provided with a clamping member, which acts on the edge area of ​​the sound insulation block to clamp the sound insulation block to the module body 100. The embodiment of the present application does not limit the installation method of fixing the sound insulation block to the module body 100, and the specific method can be selected according to actual needs.

[0143] Furthermore, in the thickness direction A of the module body 100, the thickness of the sound insulation block is h2, where h2 satisfies the following: 5 mm ≤ h2 ≤ 10 mm. For example, h2 can be 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm, or a thickness between these two values. Within the thickness range of 5 mm ≤ h2 ≤ 10 mm, the sound insulation block layer can provide sufficient noise reduction for the module body 100.

[0144] Optionally, the first sound insulation portion 410 and the second sound insulation portion 420 are separate components, with the first sound insulation portion 410 being a sound insulation coating or a sound insulation block, and the second sound insulation portion 420 being a sound insulation coating or a sound insulation block. For example, the first sound insulation portion 410 connected to the first plate 110 is a sound insulation coating, while the second sound insulation portion 420 connected to the second plate 120 is a sound insulation block. In this manner, whether the sound insulation coating is applied to the first surface 112 of the first plate 110 before the multiple connecting pipes 300 are installed, or the sound insulation coating is applied to the first surface 112 after the multiple connecting pipes 300 are installed, both can meet assembly requirements. The second sound insulation portion 420 being a sound insulation block facilitates replacement of the sound insulation block, and its thickness also provides support for the second plate 120, thereby meeting the required spacing between the second plate 120 and other structural components.

[0145] In some other embodiments, the first sound insulation part 410 and the second sound insulation part 420 are integrally provided. When the first sound insulation part 410 and the second sound insulation part are integrally provided, both the first sound insulation part 410 and the second sound insulation part are sound insulation coatings.

[0146] For example, as shown in FIG12 , the first cavity 101 includes at least an oil separation cavity 500, which includes an inlet 510 and an outlet 520. A portion of the first cavity 101 is connected to the opening 111 to form the inlet 510, while another portion of the opening 111 is connected to form the outlet 520. Specifically, as shown in FIG14 , the oil separation cavity 500 includes an intermediate cavity 501 (i.e., the second flow segment 13 described above, which can be formed by enclosing the second convex tube 1113) and two transition cavities 502 (each transition cavity 502 includes the first flow segment 21 and the reversing space 24 described above, and each transition cavity 502 can be formed by enclosing the first convex hump 1111 and the first convex tube 1112). The two transition cavities 502 are located at either end of the intermediate cavity 501. The intermediate cavity 501 is provided with an inlet 510, and the two transition cavities 502 are respectively provided with an outlet 520.

[0147] The plate surface perpendicular to the first plate body 110 and the second plate body 120 is defined as a cross section, and the section parallel to the plate surface of the first plate body 110 and the second plate body 120 is defined as a vertical section. The cross section of the middle cavity 501 is constructed to be circular or elliptical so that the fluid can flow smoothly in the middle cavity 501 and reduce flow resistance; the cross section and vertical section of the transfer cavity 502 are both constructed to be non-circular, and the module body 100 defines a portion of the transfer cavity 502 for connection with the docking pipe 300. By setting the shape of the transfer cavity 502, the installation of the docking pipe 300 is facilitated.

[0148] The cross section of the adapter cavity 502 is polygonal, and / or the vertical section of the adapter cavity 502 is polygonal, for example, the cross section of the adapter cavity 502 is constructed as a rectangle, square, hexagon, etc., and the vertical section of the adapter cavity 502 is constructed as a rectangle, square, etc.

[0149] The directions of the inlet 510 and each outlet 520 of the oil separation chamber 500 are parallel to the cross section, and the directions of the inlet 510 and each outlet 520 are parallel to each other.

[0150] A first interlayer 210 is respectively provided on the left and right sides of the middle cavity 501, and the first interlayer 210 is surrounded by the transfer cavity 502. The first interlayer 210 on the left and right sides of the middle cavity 501 is respectively connected to the first interlayer 210 at both ends arranged in the transfer cavity 502, so that the first interlayer 210 is surrounded by the outer periphery of the oil separation cavity 500, which can effectively improve the pressure resistance stability of the first plate body 110 and the second plate body 120 near the oil separation cavity 500 with a larger flow area.

[0151] The oil-gas mixture enters the middle chamber 501 of the oil separation chamber 500 through the inlet 510, where it is separated into refrigerant gas and oil. The outlets 520 of the second transfer chamber 502 are respectively an air outlet 521 and an oil outlet 522. The refrigerant gas separated by the middle chamber 501 of the oil separation chamber 500 is output through the air outlet 521, and the oil separated by the middle chamber 501 is output through the oil outlet 522. In this way, the refrigerant gas and oil are output through two opposing areas, facilitating smooth output of the refrigerant gas and oil from the oil separation chamber 500 and improving separation efficiency.

[0152] Referring again to FIG. 2 , the pipeline integration module 10 further includes an air outlet pipe 530 disposed within the oil separation chamber 500 to guide the gas within the oil separation chamber 500 out through the air outlet 521. Optionally, tapered cavities are formed at both ends of the intermediate chamber 501 of the oil separation chamber 500. Each tapered cavity is configured to gradually decrease in size as it approaches the corresponding transition chamber 502. The distal end of each tapered cavity is connected to the corresponding transition chamber 502, thereby guiding the fluid within the oil separation chamber 500 to more smoothly flow in and out of the intermediate chamber 501 and the transition chamber 502. Among them, the end of the tapered cavity connected to the air outlet 521 forms a neck 503 (that is, the first flow section 12 mentioned above), and the first end of the air outlet pipe 530 is fixed to the inner wall of the neck 503. Furthermore, the air outlet pipe 530 can be a straight pipe, and the air outlet pipe 530 can be connected to the first pipe section 310. The refrigerant gas enters the oil separation chamber 500 and enters the first pipe section 310 under the guidance of the air outlet pipe 530, and then is output from the air outlet 521, and the second end of the air outlet pipe 530 extends into the intermediate cavity 501 and extends beyond the inlet 510 to prevent the separated refrigerant gas from escaping to the inlet 510 and increasing the resistance of the oil-gas mixture from entering the intermediate cavity 501 from the inlet 510.

[0153] In a direction perpendicular to the longitudinal cross-section (i.e., the thickness direction A of the module body), the inlet 510 and the outlet pipe 530 are offset. This allows the fluid to enter the intermediate cavity 501 from the inlet 510 and flow around the outlet pipe 530. The fluid collides with the walls of the module body 100 and the outlet pipe 530, thereby separating the fluid into gas and oil. Furthermore, the distance from the inlet 510 to the neck 503 is shorter than the distance from the inlet 510 to the oil outlet 522. This increases the flow of the oil-gas mixture within the intermediate cavity 501 under the guidance of the outlet pipe 530, thereby improving the oil-gas separation efficiency.

[0154] A first interlayer 210 is provided on either side of the neck 503. The air outlet pipe 530 extends into the neck 503 and abuts against the support plate 211 on the corresponding side, which helps improve the installation stability of the air outlet pipe 530 and enhances the impact resistance of the connection between the neck 503 and the air outlet pipe 530. The first and second adhesive layers both include solder, allowing the first interlayer 210, the first plate 110, and the second plate 120 to be welded together.

[0155] A third adhesive layer is provided between the inner wall of the neck portion 503 and the first end of the air outlet pipe 530. The third adhesive layer surrounds the first end of the air outlet pipe 530, forming a fully enclosed structure around the first end of the air outlet pipe 530, thereby preventing fluid from passing through the neck portion 503 and flowing between the intermediate portion and the air outlet 521. Optionally, the third adhesive layer is solder, and the first end of the air outlet pipe 530 can be secured to the neck portion 503 of the module body 100 via the third adhesive layer by welding.

[0156] The pipeline integration module 10 also includes a first filter 602, which is arranged in the transfer chamber 502 connected to the oil outlet 522. The first filter 602 cover is arranged on the oil outlet 522. The first filter 602 is used to filter the oil separated in the intermediate chamber 501 and output it from the oil outlet 522.

[0157] Optionally, as shown in FIG14 , the first cavity 101 includes at least a filter cavity 600, which is provided with at least two docking openings 111. The at least two docking openings 111 form a refrigerant inlet and outlet, through which fluid enters and exits the filter cavity 600. At least one of the first plate 110 and the second plate 120 has a limiting groove 1013. The limiting groove 1013 is arranged around the periphery of the filter cavity 600, and the first interlayer 210 is received in the limiting groove 1013. By providing the first interlayer 210, when the filter cavity 600 is subjected to a large static load or a large alternating load, the first plate 110 and the second plate 120 can still maintain good pressure resistance and stability.

[0158] The pipeline integration module 10 further includes a second filter screen 601 disposed in the filter cavity 600 . The second filter screen 601 is covered in one of the docking openings 111 . The second filter screen 601 is used to filter the fluid entering and exiting the filter cavity 600 .

[0159] The present application also provides an outdoor unit, which includes the aforementioned pipeline integrated module 10. The pipeline integrated module 10 of the outdoor unit is connected to the indoor heat exchanger through a pipeline to form a refrigerant cycle. The outdoor unit is described below in combination with two embodiments.

[0160] Example 1

[0161] As shown in Figure 15, the pipeline integrated module 10 adopts the pipeline integrated module 10 shown in Figure 1, and the outdoor unit includes at least a compressor 620, a reversing valve 630, an outdoor heat exchanger 640, a subcooler 650, a gas-liquid separator 660, a liquid pipe 670 and a gas pipe 680 that are independent of the pipeline integrated module 10.

[0162] The reversing valve 630 includes a first flow path 631 and a second flow path 632. Optionally, the reversing valve 630 is a four-way reversing valve, which includes a first port, a second port, a third port, and a fourth port. The first port and the second port are formed on the first flow path 631, and fluid enters the four-way reversing valve from the first port and flows out of the four-way reversing valve from the second port. The third port and the fourth port are formed on the second flow path 632, and fluid enters the four-way reversing valve from the third port and flows out of the four-way reversing valve from the fourth port.

[0163] The first cavity 101 includes at least an oil separation cavity 500 and a filter cavity 600. The filter cavity 600 is directly connected to the air pipe 680, and the air pipe 680 is connected to the indoor heat exchanger. The second cavity 102 includes at least multiple connecting channels, and the multiple connecting channels include a first connecting channel 61. The first connecting channel 61 is directly connected to the liquid pipe 670, and the liquid pipe 670 is connected to the indoor heat exchanger.

[0164] The refrigerant cycle includes a refrigeration cycle, which includes a compressor 620-oil separation chamber 500-first flow path 631-outdoor heat exchanger 640-first connecting channel 61-liquid pipe 670-indoor heat exchanger-gas pipe 680-filter chamber 600-second flow path 632-gas-liquid separator 660-compressor 620 connected in sequence. Specifically, the fluid transported by the indoor heat exchanger enters the filter chamber 600 through the air pipe 680, and after being filtered in the filter chamber 600, enters the gas-liquid separator 660 through the second flow path 632. The gas-liquid separator 660 is used to separate the refrigerant mixture from the filtered fluid and transport the refrigerant mixture to the compressor 620. The compressor 620 compresses the refrigerant mixture and transports it to the oil separation chamber 500. The oil separation chamber 500 separates the refrigerant mixture into gas and oil. The gas separated by the oil separation chamber 500 is output from the air outlet 521 to the first flow path 631 of the reversing valve 630, and transported to the outdoor heat exchanger 640 for heat exchange. The gas is then transported by the outdoor heat exchanger 640 to the first connecting channel 61 and continued to be transported to the liquid pipe 670, and enters the indoor heat exchanger through the liquid pipe 670, thus forming a refrigeration cycle.

[0165] 14 and 15 , the oil separation chamber 500 includes an air inlet 510 and three outlets, including a first outlet s1 , a second outlet s2 and a third outlet s3 . The first outlet s1 forms an air outlet 521 , the second outlet s2 forms a pressure relief port 523 , and the third outlet s3 forms an oil outlet 522 .

[0166] The first outlet s1 is connected to the first connecting channel 61. Specifically, the multiple connecting channels also include a first transition channel 64 and a second transition channel 65. The first outlet s1 is connected to the outdoor heat exchanger 640 via a reversing valve 630. After heat exchange in the outdoor heat exchanger 640, the gas sequentially enters the first and second transition channels 64, 65, and enters the subcooler 650. After being cooled by the subcooler 650, it is transported to the first connecting channel 61. A first electronic expansion valve Y1 is also connected between the first and second transition channels 64, 65, regulating the flow rate of the fluid between the first and second transition channels 64, 65.

[0167] The second outlet s2 and the third outlet s3 are respectively connected in parallel to the second connecting channel 62 of the plurality of connecting channels, and the second connecting channel 62 leads to the gas-liquid separator 660. The second outlet s2 communicates with the gas-liquid separator 660 through the second connecting channel 62 for pressure relief, and the third outlet s3 communicates with the gas-liquid separator 660 through the second connecting channel 62 to transport the oil separated by the oil separation chamber 500 to the gas-liquid separator 660.

[0168] Optionally, the third outlet s3 is directly connected to the second connecting channel 62 only by a capillary tube. The multiple connecting channels include a third connecting channel 63. The third connecting channel 63 communicates between the second outlet s2 and the second connecting channel 62. The pipeline between the second outlet s2 and the second connecting channel 62 is provided with a first one-way valve X1. The first one-way valve X1 controls the one-way flow of fluid from the second outlet s2 to the second connecting channel 62. As shown in FIG15 , the second connecting channel 62 has multiple openings. For ease of description, the multiple openings of the second connecting channel 62 are named as opening a1, opening a2, and opening a3. The third outlet s3 communicates with the opening a1 via a capillary tube. The third connecting channel 63 communicates with the opening a2. The first one-way valve X1 is provided in the pipeline connecting the third connecting channel 63 and the opening a2. The opening a3 communicates with the gas-liquid separator 660. Gas and liquid entering the second connecting channel 62 are both transported to the gas-liquid separator 660 through the opening a3.

[0169] The outdoor unit further includes a supercooler 650 . The supercooler 650 includes a first refrigerant channel 651 and a second refrigerant channel 652 . The refrigerant in the second refrigerant channel 652 is used to supercool the refrigerant in the first refrigerant channel 651 .

[0170] The first end n1 of the first refrigerant channel 651 leads to the outdoor heat exchanger 640 , that is, the refrigerant in the outdoor heat exchanger 640 enters the first end n1 of the first refrigerant channel 651 through the first transition channel 64 and the second transition channel 65 in sequence.

[0171] The second end n2 of the first refrigerant channel 651 leads to the first connecting channel 61 . The low-temperature refrigerant output from the second end n2 of the first refrigerant channel 651 is transported to the liquid pipe 670 through the first connecting channel 61 to enter the indoor heat exchanger.

[0172] The first end h1 of the second refrigerant channel 652 leads to the first connecting channel 61. Optionally, the multiple connecting channels further include a third transition channel 66, one end of which is connected to the first connecting channel 61 and the other end of which is connected to the first end h1 of the second refrigerant channel 652. After the low-temperature refrigerant output from the second end n2 of the first refrigerant channel 651 enters the first connecting channel 61, it is not only transported to the indoor heat exchanger via the liquid pipe 670, but is also transported to the first end h1 of the second refrigerant channel 652 via the third transition channel 66 to enter the subcooler 650 to subcool the refrigerant in the first refrigerant channel 651. A second electronic expansion valve Y2 is also provided in the pipeline between the third transition channel 66 and the first connecting channel 61. The second electronic expansion valve Y2 is used to regulate the flow rate of the fluid between the third transition channel 66 and the first connecting channel 61.

[0173] The second end h2 of the second refrigerant channel 652 leads to the gas-liquid separator 660 or the compressor 620. Optionally, the plurality of connecting channels further include a fourth transition channel 67, wherein the second end h2 of the second refrigerant channel 652 is connected to the b1 opening of the fourth transition channel 67, and the b2 opening of the fourth transition channel 67 is connected to the a4 opening of the second connecting channel 62, so that the refrigerant output from the second end h2 of the second refrigerant channel 652 enters the second connecting channel 62 through the fourth transition channel 67 and is delivered to the gas-liquid separator 660 through the a3 opening of the second connecting channel 62. Optionally, the plurality of connecting channels further include a fifth transition channel 68, wherein one end of the fifth transition channel 68 is connected to the b3 opening of the fourth transition channel 67 and the other end is connected to the compressor 620, so that the second end h2 of the second refrigerant channel 652 is connected to the compressor 620 via the fourth transition channel 67 and the fifth transition channel 68, respectively. Among them, a second one-way valve X2 is provided in the pipeline between the b2 opening of the fourth transition flow channel 67 and the a4 opening of the second connecting channel 62, and a third one-way valve X3 is provided in the pipeline between the b3 opening of the fourth transition flow channel 67 and the fifth transition flow channel 68. The second one-way valve X2 and the second one-way valve X3 prevent the fluid in the second connecting channel 62 and the fifth transition flow channel 68 from flowing back into the fourth transition flow channel 67.

[0174] Example 2

[0175] As shown in FIG16 , the pipeline integrated module 10 adopts the pipeline integrated module 10 shown in FIG8 , and the outdoor unit includes at least a compressor 620 , a reversing valve 630 , an outdoor heat exchanger 640 and a subcooler 650 which are independent of the pipeline integrated module.

[0176] The accommodating chamber 20 includes at least a first filter chamber, a second filter chamber and a first docking channel. Optionally, the first chamber 201 described above forms the first filter chamber, the second chamber 202 described above forms the second filter chamber, and the third chamber 203 described above forms the first docking channel.

[0177] The reversing valve 630 includes a first flow path 631 and a second flow path 632. The refrigerant cycle includes a refrigeration cycle. The refrigeration cycle includes a compressor 620-first flow path 631-outdoor heat exchanger 640-second filter chamber (second chamber 202)-first docking channel (third chamber 203)-subcooler 650-indoor heat exchanger 610-first filter chamber (first chamber 201)-second flow path 632-compressor 620 connected in sequence. Specifically, the refrigerant delivered by the indoor heat exchanger 610 enters the first filter chamber (first chamber 201), is filtered by the first filter chamber (first chamber 201), and is delivered to the second flow path 632 of the reversing valve 630. It is then delivered to the first port x1 of the compressor 620 through the second flow path 632 of the reversing valve 630. After the compressor 620 compresses the refrigerant, the compressed refrigerant is delivered to the first flow path 631 of the reversing valve 630 through the second port x2 of the compressor 620, and is then delivered to the outdoor heat exchanger through the first flow path 631. After heat exchange at 640, the outdoor heat exchanger 640 transports the refrigerant to the second filter chamber (second chamber 202), and the refrigerant is filtered in the second filter chamber (second chamber 202) and transported to the first docking channel (third chamber 203), and transported to the subcooler 650 through the first docking channel (third chamber 203). The subcooler 650 cools the refrigerant and then transports it to the indoor heat exchanger 610. The refrigerant exchanges heat in the indoor heat exchanger 610 to cool the environment in which the indoor heat exchanger 610 is located, thereby forming a refrigerant cycle.

[0178] A first electronic expansion valve 510 is also provided on the pipe connecting the second filter chamber (second chamber 202) and the first docking channel (third chamber 203). The first electronic expansion valve 510 is used to regulate the flow of fluid between the second filter chamber (second chamber 202) and the first docking channel (third chamber 203). For example, fluid flows out through the second docking pipe 300 at the second opening 31 of the second filter chamber (second chamber 202) and enters the first docking channel (third chamber 203) through the first docking pipe 200 at one of the first openings 23 of the first docking channel (third chamber 203). The first electronic expansion valve 510 can be provided at the connection between the second docking pipe 300 and the first docking pipe 200 as described above, or the first electronic expansion valve 510 can be provided at the first docking pipe 200 as described above, or the first electronic expansion valve 510 can be provided at the second docking pipe 300 as described above.

[0179] Optionally, the subcooler 650 includes a first refrigerant channel 651 and a second refrigerant channel 652 for conveying refrigerant, wherein the refrigerant in the second refrigerant channel 652 is used to subcool the refrigerant in the first refrigerant channel 651. The first end y1 of the first refrigerant channel 651 leads to the first docking channel (the third chamber 203), and the second end y2 of the first refrigerant channel 651 leads to the indoor heat exchanger 610. That is, the refrigerant output from the first docking channel (the third chamber 203) enters the first refrigerant channel 651 and is subcooled by the refrigerant in the second refrigerant channel 652 before being conveyed to the indoor heat exchanger 610 for heat exchange. The first end y3 of the second refrigerant channel 652 leads to the second end y2 of the first refrigerant channel 651, and the second end y4 of the second refrigerant channel 652 leads to the compressor 620. Specifically, the second end y4 of the second refrigerant channel 652 leads to the third port x3 of the compressor 620. The refrigerant entering the compressor 620 through the first port x1 and the third port x3 of the compressor 620 is compressed by the compressor 620 and is then transported to the first flow path 631 of the reversing valve 630 through the second port x2 of the compressor 620.

[0180] The outdoor unit also includes a second electronic expansion valve 520, which is arranged in a pipeline between the first end of the second refrigerant channel 652 and the second end of the first refrigerant channel 651 to regulate the flow of fluid entering the first end of the second refrigerant channel 652.

[0181] An embodiment of the present application further provides an air-conditioning system, comprising the outdoor unit described above, an indoor unit for forming a refrigerant circulation, and a refrigerant pipe connecting the outdoor unit and the indoor unit.

[0182] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0183] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A pipeline integrated module, characterized in that: include: The module body comprises a first plate body and a second plate body, wherein the first plate body and the second plate body are arranged to cover each other; and a sandwich layer, comprising a first sandwich layer and a second sandwich layer, wherein the first sandwich layer is connected between the first plate body and the second plate body to define a first cavity for accommodating fluid, and the second sandwich layer is connected between the first plate body and the second plate body to define a second cavity for accommodating fluid, and a flow area of ​​the first cavity is greater than a flow area of ​​the second cavity; Wherein, the first interlayer includes a support plate, a first adhesive layer connected between the support plate and the first plate body, and a second adhesive layer connected between the support plate and the second plate body.

2. The pipeline integrated module according to claim 1, characterized in that: The first plate body has a first groove, and the notch of the first groove has a first stamping chamfer; The second plate body has a second groove, and the notch of the second groove has a second stamping chamfer; The second groove is arranged corresponding to the first groove, and the two define the first cavity, and the first interlayer extends between the first stamping chamfer and the second stamping chamfer.

3. The pipeline integrated module according to claim 2, characterized in that: The support plate extends between the first stamping chamfer and the second stamping chamfer; The first adhesive layer extends to connect to the surface of the support plate facing the first stamping chamfer, and is connected to the first stamping chamfer; and / or, The second adhesive layer extends to be connected to a surface of the support plate facing the second stamping chamfer, and is connected to the second stamping chamfer.

4. The pipeline integrated module according to claim 2, characterized in that: The first plate body has a limiting groove arranged around the outer periphery of the first groove; and / or, The second plate body has a limiting groove arranged around the outer periphery of the second groove; The first interlayer is arranged in the limiting groove.

5. The pipeline integrated module according to claim 4, characterized in that: The support plate extends from the limiting groove to between the first stamping chamfer and the second stamping chamfer, the first adhesive layer extends from the limiting groove to between the first stamping chamfer and the support plate, and the second adhesive layer extends from the limiting groove to between the second stamping chamfer and the support plate.

6. The pipeline integrated module according to claim 4, characterized in that: A plurality of docking openings are formed on a surface of the first plate body facing away from the second plate body, the first cavity is communicated with at least one of the docking openings, and the second cavity is communicated with at least one of the docking openings; The limiting groove is formed on the surface of the second plate body facing the first plate body, and the second groove is formed on the bottom wall of the limiting groove.

7. The pipeline integrated module according to claim 4, characterized in that: In the covering direction of the first plate body and the second plate body, the depth of the limiting groove is H, the thickness of the first interlayer is h1, and the thickness of the second interlayer is h2, wherein H+h2=h1.

8. The pipeline integrated module according to claim 4 or 7, characterized in that: In the covering direction of the first plate body and the second plate body, the depth of the limiting groove is H, and H satisfies: 0.2mm≤H≤0.5mm.

9. The pipeline integrated module according to claim 1, characterized in that: The second interlayer is a foil solder or a paste solder; The support plate is a hard metal support plate; The first bonding layer is a foil solder or a paste solder; The second bonding layer is foil-like solder or paste-like solder.

10. The pipeline integrated module according to claim 1, characterized in that: The module body has a plurality of accommodating cavities inside, at least one of the plurality of accommodating cavities is the first cavity, and at least one of the plurality of accommodating cavities is the second cavity; The accommodating cavity has a first flow segment, and the outer surface of the module body is provided with a first opening connected to the first flow segment, and the opening direction of the first opening forms an angle with the flow direction of the first flow segment; The pipeline integration module also includes a first butt joint pipe, which includes a first pipe section and a second pipe section that are arranged at an angle and connected to each other, the first pipe section extends into the first flow section, and the second pipe section passes through the first opening and extends outside the accommodating cavity to connect with an external pipe section.

11. The pipeline integrated module according to claim 10, characterized in that: The accommodating chamber includes a second flow segment connected to the first flow segment, and the flow area at the junction of the first flow segment and the second flow segment is smaller than the flow area of ​​the second flow segment; In the flow direction from the second flow segment to the first flow segment, the flow area of ​​at least a portion of the second flow segment gradually decreases.

12. The pipeline integrated module according to claim 11, characterized in that: In the axial direction of the first pipe segment, the first pipe segment has a flow guiding opening end away from the second pipe segment, and the flow guiding opening end is arranged toward the second flow segment; The diversion opening end is arranged at the junction of the first flow section and the second flow section; or, The flow guide opening end is arranged in the first flow section.

13. The pipeline integrated module according to claim 10, characterized in that: The module body includes a plurality of raised portions, and the raised portions define a receiving cavity; The raised portion includes a first convex hull and a first convex tube connected to the first convex hull, the first convex tube defines a first flow section, the first convex hull has the first opening, and the second tube section is connected to a wall surface of the first opening defined by the first convex hull.

14. The pipeline integrated module according to claim 13, characterized in that: The raised portion includes a first flange disposed around the periphery of the first opening, the first flange is connected to the first convex hump, and the first flange is connected to the outer peripheral wall of the second pipe section.

15. The pipeline integrated module according to claim 13, characterized in that: The outer peripheral wall of the first pipe section is connected to the wall surface of the first convex pipe defining the first flow section; The first butt joint pipe also includes a transition pipe section connected between the first pipe section and the second pipe section. The transition pipe section is accommodated in a space defined by the first convex hump, and the transition pipe section is connected to or spaced from the first convex hump.

16. The pipeline integrated module according to claim 13, characterized in that: The raised portion includes a second convex tube, the second convex tube defines a second flow segment connected to the first flow segment, the second flow segment is coaxial with the first flow segment, and one end of the second flow segment away from the first flow segment is closed; A second opening communicating with the second flow segment is formed on the surface of the second convex tube, and an opening direction of the second opening forms an angle with the axial direction of the second flow segment.

17. The pipeline integrated module according to claim 10, characterized in that: The portion of the second pipe section extending out of the accommodating cavity is made of copper or copper alloy, and the main component of the external connecting pipe includes copper.

18. The pipeline integrated module according to claim 17, characterized in that: The first butt-jointed pipe is made of a pipe made of copper or copper alloy and bent in one piece. The first pipe section and the second pipe section respectively form two ends of the first butt-jointed pipe.

19. The pipeline integrated module according to claim 10, characterized in that: The portion of the second pipe section extending out of the accommodating cavity is made of aluminum or aluminum alloy, and the main component of the external connecting pipe includes aluminum.

20. The pipeline integrated module according to claim 19, characterized in that: The first butt-jointed pipe is made of a pipe made of aluminum or aluminum alloy and bent in one piece. The first pipe section and the second pipe section respectively form two ends of the first butt-jointed pipe.

21. The pipeline integrated module according to claim 10, characterized in that: The portion of the second pipe segment extending out of the accommodating cavity includes stainless steel, and the external connecting pipe is a stainless steel pipe or a copper refrigerant pipe whose main part includes copper; the stainless steel portion of the second pipe segment is connected to the external connecting pipe via a connecting portion, and the main component of the connecting portion is copper.

22. The pipeline integrated module according to claim 21, characterized in that: The connecting portion is a copper sleeve or a copper plating layer, and the connecting portion is arranged on the circumferential surface of the portion of the second pipe segment extending out of the accommodating cavity.

23. The pipeline integrated module according to claim 21, characterized in that: The first butt-jointed pipe is formed by integrally bending a stainless steel pipe, and the first pipe section and the second pipe section respectively form two ends of the first butt-jointed pipe.

24. The pipeline integration module according to any one of claim 1, characterized in that: The first pipe section is welded to the wall surface of the module body defining the first flow section; The second pipe section is welded to a wall surface of the module body defining the first opening.

25. The pipeline integrated module according to claim 1, characterized in that: The outer surface of the module body comprises a first surface and a second surface which are arranged opposite to each other along the thickness direction of the module body, and the first surface is provided with a plurality of docking openings; The module body has a plurality of accommodating cavities inside, at least one of the plurality of accommodating cavities is a first cavity, at least one is a second cavity, and each of the accommodating cavities is connected to at least one of the docking openings; and The pipeline integrated module also includes a sound insulation member, which includes a first sound insulation portion provided on the first surface and a second sound insulation portion provided on the second surface. In the thickness direction of the module body, the first sound insulation portion and the second sound insulation portion respectively overlap with the accommodating cavity at least partially, and the first sound insulation portion avoids the docking opening.

26. The pipeline integrated module according to claim 25, characterized in that: The module body includes a protruding portion, the protruding portion defines the accommodating cavity, and the docking opening is opened on the outer surface of the protruding portion.

27. The pipeline integrated module according to claim 26, characterized in that: The raised portion includes a docking convex hump, the docking convex hump defines the docking opening, and the docking convex hump defines a wall surface of the docking opening for connecting with a docking pipe plugged into the docking opening; In the thickness direction of the module body, the first sound insulation portion avoids the docking bulge and covers the remaining portion of the first surface.

28. The pipeline integrated module according to claim 25, characterized in that: The sound insulation component is a sound insulation coating; in the thickness direction of the module body, the thickness of the sound insulation coating is h1, and h1 satisfies: 3mm≤h1≤8mm.

29. The pipeline integrated module according to claim 25, characterized in that: The sound insulation component is a sound insulation block, which is bonded or adhered to the outer surface of the module body; in the thickness direction of the module body, the thickness of the sound insulation block is h2, and h2 satisfies: 5mm≤h2≤10mm.

30. The pipeline integrated module according to claim 25, characterized in that: The first sound insulation part and the second sound insulation part are separately provided; The first sound insulation part is a sound insulation coating or a sound insulation block; The second sound insulation part is a sound insulation coating or a sound insulation block.

31. The pipeline integrated module according to claim 1, characterized in that: The first cavity at least includes an oil separation cavity, the oil separation cavity includes an inlet and an outlet, the oil separation cavity includes an intermediate cavity and two transition cavities, the two transition cavities are respectively located at two ends of the intermediate cavity, the intermediate cavity is provided with the inlet, and the two transition cavities are respectively provided with the outlet; The plate surface perpendicular to the first plate body and the second plate body is defined as a cross section, and the section parallel to the plate surface of the first plate body and the second plate body is defined as a vertical section. The cross section of the intermediate cavity is configured to be circular or elliptical, and the cross section and vertical section of the transition cavity are both configured to be non-circular.

32. The pipeline integrated module according to claim 31, characterized in that: The cross section of the adapter cavity is a polygon, and / or the vertical section of the adapter cavity is a polygon.

33. The pipeline integrated module according to claim 31, characterized in that: The orientation of the inlet and the orientation of each of the outlets are parallel to the cross section, and the orientation of the inlet and the orientation of each of the outlets are parallel to each other.

34. The pipeline integrated module according to claim 31, characterized in that: The left and right sides of the middle cavity are respectively provided with first interlayers; the transition cavity is surrounded by the first interlayer, and the first interlayers on the left and right sides of the middle cavity are respectively connected to the first interlayers at both ends and arranged in the transition cavity.

35. The pipeline integrated module according to claim 31, characterized in that: The outlets of the second transfer chamber are respectively an air outlet and an oil outlet. The refrigerant gas separated by the intermediate chamber is output through the air outlet, and the oil separated by the intermediate chamber is output through the oil outlet.

36. The pipeline integrated module according to claim 35, characterized in that: The pipeline integrated module further includes an air outlet pipe, and the two ends of the intermediate cavity respectively form a tapered cavity, each of the tapered cavities is configured to gradually decrease in size along the direction toward the corresponding transition cavity, and the end of each of the tapered cavities is connected to the corresponding transition cavity; The end of the tapered cavity connected to the air outlet forms a neck, the first end of the air outlet pipe is fixed to the inner wall of the neck, and the second end of the air outlet pipe extends into the middle cavity and extends beyond the inlet.

37. The pipeline integrated module according to claim 36, characterized in that: The first interlayer is respectively arranged on both sides of the neck, and the air outlet pipe is in contact with the support plate on the corresponding side.

38. The pipeline integrated module according to claim 36, characterized in that: A third adhesive layer is disposed between the inner wall of the neck and the first end of the air outlet pipe, and the third adhesive layer is disposed around the first end of the air outlet pipe.

39. The pipeline integrated module according to claim 1, characterized in that: The first chamber at least includes a filter cavity, the first plate body has a first groove, the second plate body has a second groove, the second groove is arranged corresponding to the first groove, and the two define the filter cavity; One of the first groove and the second groove is provided with at least two docking openings, and at least two docking openings form a refrigerant inlet and outlet. Limiting grooves are provided on the circumferential sides of the first groove and the second groove, and the first interlayer is received in the limiting grooves.

40. An outdoor unit, whose pipeline is connected to the indoor heat exchanger of the indoor unit to form a refrigerant cycle, characterized in that: A pipeline integrated module comprising any one of claims 1-39.

41. The outdoor unit according to claim 40, characterized in that: The outdoor unit at least includes a compressor, a reversing valve, an outdoor heat exchanger, a gas-liquid separator, a liquid pipe and a gas pipe which are independent of the pipeline integrated module, and the reversing valve includes a first flow path and a second flow path; The first cavity at least includes an oil separation cavity and a filter cavity, and the filter cavity is directly connected to the air pipe; The second cavity includes a plurality of connecting channels, the plurality of connecting channels include a first connecting channel, and the first connecting channel is directly connected to the liquid pipe; The refrigerant cycle includes a refrigeration cycle, and the refrigeration cycle includes the compressor-the oil separation chamber-the first flow path-the outdoor heat exchanger-the first connecting channel-the liquid pipe-the indoor heat exchanger-the gas pipe-the filter chamber-the second flow path-the gas-liquid separator-the compressor connected in sequence.

42. The outdoor unit according to claim 41, characterized in that: The oil separation chamber includes an air inlet and a first outlet, a second outlet and a third outlet, the first outlet is connected to the first connecting channel, the second outlet and the third outlet are respectively connected in parallel to the second connecting channels of the multiple connecting channels, and the second connecting channel leads to the gas-liquid separator.

43. The outdoor unit according to claim 42, characterized in that: The third outlet is directly connected to the second connecting channel only through a capillary tube.

44. The outdoor unit according to claim 42, characterized in that: The multiple connecting channels include a third connecting channel, which is connected between the second outlet and the second connecting channel. The pipeline between the second outlet and the second connecting channel is provided with a first one-way valve, and the first one-way valve controls the flow from the second outlet to the second connecting channel.

45. The outdoor unit according to claim 41, characterized in that: The outdoor unit includes a supercooler, which includes a first refrigerant channel and a second refrigerant channel. The refrigerant in the second refrigerant channel is used to supercool the refrigerant in the first refrigerant channel. The first end of the first refrigerant channel leads to the outdoor heat exchanger, the second end of the first refrigerant channel leads to the first connecting channel, the first end of the second refrigerant channel leads to the first connecting channel, and the second end of the second refrigerant channel leads to the gas-liquid separator or the compressor.

46. ​​An air conditioning system, characterized in that: It comprises an outdoor unit as described in any one of claims 40-45, and an indoor unit and a refrigerant pipe connecting the outdoor unit and the indoor unit.

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