A pipeline integrated module, outdoor unit and heating and ventilation equipment

Abstract

The application discloses a pipeline integrated module, an outdoor unit and a heating and ventilation equipment. The first plate body and the second plate body are overlapped to define a containing cavity for containing fluid, and a turn-over edge is arranged to define a switching opening communicated with the containing cavity. The wall surface defining the containing cavity comprises a transition convex arc surface, the wall surface defining the switching opening comprises a turn-over edge wall surface, the transition convex arc surface is connected with the turn-over edge wall surface, and the part of the switching pipe inserted into the switching opening does not completely exceed the transition convex arc surface in the direction of the turn-over edge wall surface towards the transition convex arc surface. The switching pipe does not extend into the containing cavity, and the interference of the switching pipe with the fluid flow in the containing cavity is small. The flow resistance generated by the switching pipe in the containing cavity can be reduced. The switching pipe can be smoothly connected with the transition convex arc surface at the pipe opening. The gap between the switching pipe and the wall surface of the containing cavity can be prevented, the vortex flow of the fluid in the containing cavity during the flow can be prevented, and the flow resistance generated by the switching pipe in the containing cavity can be further reduced.

Description

Technical Field

[0001] This application relates to the field of HVAC equipment technology, specifically to a pipe integration module, an outdoor unit, and HVAC equipment. Background Technology

[0002] Currently, HVAC systems typically consist of multiple independent components and piping, making installation and commissioning cumbersome and space-consuming. Furthermore, the complex connections between these components can easily lead to leaks and blockages, affecting the normal operation and performance of the HVAC system.

[0003] In related technologies, the originally scattered piping components in HVAC equipment are integrated into a compact, efficient, and easy-to-install and maintain piping module. However, when connecting components such as compressors, condensers, evaporators, and throttling devices from HVAC equipment to the piping module, pipes need to be inserted into the interior of the piping module, resulting in significant flow resistance and pressure loss. Summary of the Invention

[0004] The main objective of this application is to provide a pipe integration module, outdoor unit, and HVAC equipment that can solve the problem of high flow resistance when connecting pipes are inserted into the cavity of the pipe integration module.

[0005] On one hand, this application provides a pipeline integration module, which includes a first plate, a second plate, and a connecting pipe. The first plate and the second plate overlap each other and jointly define a receiving cavity for containing fluid. At least one of the first plate and the second plate has a flange. The flange has a connecting opening communicating with the receiving cavity. The wall surface defining the receiving cavity includes a transition convex arc surface. The transition convex arc surface protrudes towards the side where the axis of the connecting opening is located. The wall surface defining the connecting opening includes a flange wall surface. The transition convex arc surface is connected to the flange wall surface. The connecting pipe is inserted into the connecting opening and, along the direction of the flange wall surface towards the transition convex arc surface, the portion of the connecting pipe inserted into the connecting opening does not completely exceed the transition convex arc surface.

[0006] In some embodiments, the flange has a first end face that forms an angle with the flange wall surface, the connection between the flange wall surface and the transition convex arc surface is a bend line, the bend line has a vertex near the first end face and a bottom point away from the first end face along the axial direction of the transition opening, and the end of the adapter tube that is inserted into the transition opening has a second end face that forms an angle with the axis of the adapter tube; wherein, the second end face is located between the first end face and the vertex of the bend line; or, the second end face is located between the vertex and the bottom point of the bend line; or, the second end face is coplanar with the vertex of the bend line.

[0007] In some embodiments, the wall surface defining the receiving cavity further includes a flow-guiding concave arc surface, which is connected to the transition convex arc surface, and the flow-guiding concave arc surface is recessed on the side away from the axis of the transition opening.

[0008] In some embodiments, a first included angle α is formed between the external tangent of the flow-guiding concave arc surface and the axis of the transition opening. The first included angle α gradually increases from the transition opening toward the flow-guiding concave arc surface, and α satisfies: 90° < α < 180°; and / or, a second included angle β is formed between the external tangent of the transition convex arc surface and the axis of the transition opening. The second included angle β gradually decreases from the transition opening toward the flow-guiding concave arc surface, and β satisfies: 90° < β < 180°.

[0009] In some embodiments, the adapter includes a pipe body and a positioning part, a portion of the pipe body is inserted into the adapter opening, and the positioning part protrudes from the outer wall surface of the pipe body to define the depth to which the adapter is inserted into the adapter opening.

[0010] In some embodiments, the pipe integration module further includes a solder layer, a portion of which fills the gap between the wall of the transition opening and the outer wall of the transition pipe, the flange having a first end face facing the positioning portion, and another portion of the solder layer connecting the positioning portion and the first end face.

[0011] In some embodiments, the pipe integration module further includes a solder layer, a portion of which fills the gap between the wall of the transition opening and the outer wall of the transition pipe, one end of the transition pipe inserted into the transition opening having a second end face at an angle to the axial direction of the transition opening, and another portion of the solder layer extending to the wall of the receiving cavity connected to the second end face.

[0012] In some embodiments, the connection between the transition convex arc surface and the flanged wall surface is a bend line, and one end of the adapter pipe that is inserted into the adapter opening has a second end face. The second end face is set at an angle to the axis of the adapter pipe, and the bend line is located in the plane of the second end face.

[0013] In some embodiments, the first plate and the second plate together define a plurality of the receiving cavities, each of the receiving cavities communicating with at least one of the transition openings, the receiving cavity including at least one of an oil separation cavity and a filter cavity.

[0014] On the other hand, this application also provides a technical solution to solve the above-mentioned technical problems as follows: an outdoor unit, whose pipeline is connected to the indoor heat exchanger of the indoor unit to form a refrigerant circulation, the outdoor unit including the pipeline integration module as described above.

[0015] In addition, this application also provides a technical solution to solve the above-mentioned technical problems as follows: a heating and ventilation equipment, the heating and ventilation equipment including an outdoor unit as described above, and including an indoor unit and a refrigerant pipe connecting the outdoor unit and the indoor unit.

[0016] Based on the pipe integration module, outdoor unit, and HVAC equipment of this application embodiment, at least the following advantages are achieved: By covering the first plate and the second plate to define a receiving cavity for containing fluid, and by providing a flange to define a transition opening communicating with the receiving cavity, the wall surface defining the receiving cavity includes a transition convex arc surface, and the wall surface defining the transition opening includes a flanged wall surface. The transition convex arc surface is connected to the flanged wall surface. Along the direction from the flanged wall surface toward the transition convex arc surface, the portion of the adapter pipe inserted into the transition opening does not completely exceed the transition convex arc surface, thus ensuring the smooth transition of the adapter pipe insertion. One end of the connector is always located inside the adapter opening, meaning the adapter does not extend into the receiving cavity, or in other words, the adapter does not protrude from the inner wall of the receiving cavity. This minimizes interference with the fluid flow within the receiving cavity, reducing the flow resistance generated by the adapter within the receiving cavity. Furthermore, the adapter can smoothly transition to the transition convex surface at the pipe opening, allowing for smooth communication between the adapter and the receiving cavity. This prevents gaps between the adapter and the wall of the receiving cavity, thereby preventing eddies from forming during fluid flow within the receiving cavity and further reducing the flow resistance generated by the adapter within the receiving cavity. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural diagram of a pipeline integration module provided for an embodiment of this application;

[0019] Figure 2 A schematic diagram of the cross-sectional structure of a pipeline integration module provided in an embodiment of this application;

[0020] Figure 3 A schematic diagram of the cross-sectional structure of the junction between the outer wall surface of the adapter pipe and the inner wall surface of the adapter opening provided in the embodiment of this application;

[0021] Figure 4This is a schematic diagram of the cross-sectional structure of the adapter pipe welded to the adapter opening according to an embodiment of this application;

[0022] Figure 5 An exploded view of a pipeline integration module provided in this application embodiment;

[0023] Figure 6 This is a three-dimensional structural diagram of the transfer tube provided in an embodiment of this application;

[0024] Figure 7 A schematic diagram of the cross-sectional structure of the adapter pipe and adapter opening connection provided in an embodiment of this application;

[0025] Figure 8 This is a schematic cross-sectional view of the junction between the inner wall of the adapter pipe and the outer wall of the adapter opening, as provided in an embodiment of this application.

[0026] Icon labels:

[0027] 100. Pipeline Integration Module; 1. Module Body; 11. Protrusion; 12. Flanged Edge; 13. First Plate; 131. First Flat Part; 132. First Protrusion; 14. Second Plate; 141. Second Flat Part; 142. Second Protrusion; 15. Connecting Layer; 101. Receiving Cavity; 102. Adapter Opening; 103. Guide Concave Arc Surface; 104. Flanged Edge Wall; 105. Transition Convex Arc Surface; 106. First End Face; 107. Bending Line; 1071. Vertex; 1072. Bottom Point; 108. Second End Face; 2. Adapter Pipe; 21. Pipeline Body; 3. Solder Layer; 4. Positioning Part; 5. Welding Ring. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

[0030] like Figures 1 to 3The diagram shown is a structural schematic of a pipeline integration module 100 provided in one embodiment of this application. The pipeline integration module 100 may include a module body 1 and a transfer pipe 2. The module body 1 includes a first plate 13 and a second plate 14. The first plate 13 and the second plate 14 can be fitted together, and the first plate 13 and the second plate 14 can jointly define a receiving cavity 101 for containing fluid. At least one of the first plate 13 and the second plate 14 has a flange 12, and the flange 12 may be provided with a transfer opening 102 communicating with the receiving cavity 101.

[0031] The flange 12 is formed by stamping the plate that defines the receiving cavity 101. After stamping the flange 12, the wall that defines the receiving cavity 101 can include a transition convex arc surface 105, and the transition convex arc surface 105 can protrude toward the side where the axis of the transition opening 102 is located. The flange 12 can include a flange wall surface 104, which can define the transition opening 102. The transition convex arc surface 105 can be connected to the flange wall surface 104.

[0032] The adapter tube 2 can be nested with the flange 12. More specifically, the inner wall surface of the adapter tube 2 is engaged with the outer wall surface of the flange 12, or the outer wall surface of the adapter tube 2 is engaged with the inner wall surface of the flange 12. Preferably, the adapter tube 2 is inserted into the adapter opening 102, and the portion of the adapter tube 2 inserted into the adapter opening 102 is coaxial with the adapter opening 102.

[0033] Combination Figure 3 and Figure 4 Specifically, both the first plate 13 and the second plate 14 can be stainless steel plates. The first plate 13 can have a first flat portion 131 and a first protrusion 132 protruding from the first flat portion 131. The first flat portion 131 refers to the portion of the first plate 13 that is flat, while the first protrusion 132 refers to the portion of the flat plate structure that protrudes.

[0034] Similarly, the second plate 14 may have a second flat portion 141 and a second protrusion 142 protruding from the second flat portion 141. The second flat portion 141 refers to the portion of the second plate 14 that is flat, while the second protrusion 142 refers to the portion that protrudes from the flat plate structure of the second plate 14.

[0035] When the first plate 13 and the second plate 14 are closed together, the first flat portion 131 and the second flat portion 141 can be arranged opposite to each other. That is, along the direction perpendicular to the first flat portion 131 and the second flat portion 141, the projection of the first flat portion 131 and the projection of the second flat portion 141 are stacked. The first convex portion 132 and the second convex portion 142 protrude in opposite directions and are arranged opposite to each other, so that the first convex portion 132 and the second convex portion 142 can cover each other and form a convex portion 11. A receiving cavity 101 is formed inside the convex portion 11. In the direction of fluid flow in the receiving cavity 101, the outer contour shape of the cross section of the receiving cavity 101 is circular, elliptical, polygonal, etc.

[0036] The flange 12 can be provided on the protrusion 11, and the flange 12 can define the transition opening 102 (see Figure 5 The adapter opening 102 is interconnected with the receiving cavity 101. The adapter tube 2 can be inserted into the adapter opening 102 along the flanged wall surface 104 toward the transition convex arc surface 105. The portion of the adapter tube 2 inserted into the adapter opening 102 does not completely extend beyond the transition convex arc surface 105. In other words, one end of the adapter tube 2 inserted into the adapter opening 102 is always located within the adapter opening 102. That is, the adapter tube 2 does not extend into the receiving cavity 101, or the adapter tube 2 does not protrude from the inner wall surface of the receiving cavity 101. In the outgoing state, the adapter 2 has little interference with the fluid flow in the receiving cavity 101, which can reduce the flow resistance generated by the adapter 2 in the receiving cavity 101. Furthermore, the adapter 2 can smoothly transition with the transition convex arc surface 105 at the pipe opening, so that the adapter 2 can smoothly communicate with the receiving cavity 101. This can prevent the existence of gaps between the adapter 2 and the wall of the receiving cavity 101, thereby preventing the fluid in the receiving cavity 101 from generating eddies during flow, and further reducing the flow resistance generated by the adapter 2 in the receiving cavity 101.

[0037] Please see Figures 3 to 5 The flange 12 may have a first end face 106 that is angled to the flange wall 104. Preferably, the first end face 106 is perpendicular to the axis of the transition opening 102. The connection between the flange wall 104 and the transition convex surface 105 may be a bend line 107. The bend line 107 may be a curved line, and along the axial direction of the transition opening 102, the bend line 107 may have a vertex 1071 near the first end face 106, and the bend line 107 may also have a bottom point 1072 away from the first end face 106.

[0038] Combination Figure 5Optionally, the flange 12 is stamped out on the convex hull, so that the bending line 107 is a curved line in space, while the first end face 106 is a circular line. The bending line 107 has a vertex 1071 and a bottom point 1072. The vertex 1071 is the point on the bending line 107 that is closest to the first end face 106 along the axial direction of the transition opening 102, and the bottom point 1072 is the point on the bending line 107 that is furthest from the first end face 106 along the axial direction of the transition opening 102.

[0039] For ease of description, the vertical distance between the first end face 106 and the bending line 107 along the axial direction of the transition opening 102 is defined as 'a'. Since the bending line 107 is a curved line and the first end face 106 is a circular line, the vertical distance from each point on the bending line 107 to the first end face 106 is not exactly equal. 'a' represents a range of values ​​greater than 0. When 'a' is at its minimum within this range, it corresponds to the vertical distance between the vertex 1071 and the first end face 106. When 'a' is at its maximum within this range, it corresponds to the vertical distance between the bottom point 1072 and the first end face 106.

[0040] The adapter tube 2 and the adapter opening 102 are connected and fitted together. One end of the adapter tube 2 has a second end face 108. The second end face 108 can be set at an angle to the axis of the adapter tube 2. In this embodiment, the second end face 108 is set perpendicular to the axis of the adapter tube 2, and the second end face 108 is set parallel to the first end face 106.

[0041] In this embodiment, the adapter pipe 2 is inserted into the adapter opening 102, and the second end face 108 is located between the first end face 106 and the vertex 1071 of the bend line 107. That is, the adapter pipe 2 is inserted into the adapter opening 102 but does not exceed the bend line 107, so that the adapter pipe 2 does not extend into the receiving cavity 101. In other words, the opening of the adapter pipe 2 can be correspondingly set with the transition convex arc surface 105, so that the adapter pipe 2 has little interference with the fluid flow in the receiving cavity 101. Of course, in some embodiments, the second end face 108 can be coplanar with the vertex 1071 of the bend line 107, so that the second end face 108 can be connected with the transition convex arc surface 105, so that the fluid in the receiving cavity 101 can flow smoothly into the adapter pipe 2 along the transition convex arc surface 105 and the second end face 108.

[0042] In some other embodiments, the adapter 2 is inserted into the adapter opening 102, and the second end face 108 is located between the apex 1071 and the apex 1072 of the bend line 107. That is, the adapter 2 is inserted into the adapter opening 102 and extends beyond the bend line 107, but does not completely extend beyond the bend line 107, so that the plane where the second end face 108 of the adapter 2 is located intersects the bend line 107. That is, the second end face 108 does not fully extend into the receiving cavity 101, which can also reduce the flow resistance generated by the adapter 2 in the receiving cavity 101.

[0043] Combination Figure 3 Optionally, in some embodiments, the pipeline integration module 100 may further include a connecting layer 15, which is connected between the first flat portion 131 and the second flat portion 141. In this embodiment, solder can be placed between the first flat portion 131 and the second flat portion 141. After the solder is heated and melted, it fills the gap between the first flat portion 131 and the second flat portion 141 and is cured to form the connecting layer 15, connecting the first flat portion 131 and the second flat portion 141 together, making the structure of the pipeline integration module 100 more robust.

[0044] like Figure 3 and Figure 4 As shown, in some embodiments, the transition opening 102 defined by the flange wall 104 is circular, elliptical, or polygonal, etc., and the shape of the outer wall of the flange 12 is similar to the shape of its inner wall. Along the axial direction of the transition opening 102, the flange wall 104 has a first end face 106 and a bending line 107 disposed opposite to each other.

[0045] A portion of the wall surface of the defined receiving cavity 101 adjacent to the bending line 107 forms a transition convex arc surface 105, and another portion of the wall surface away from the bending line 107 can form a flow guiding concave arc surface 103. The transition convex arc surface 105 can connect the flow guiding concave arc surface 103 and the flanged wall surface 104. The transition convex arc surface 105 can protrude towards the side where the axis of the transition opening 102 is located, while the flow guiding concave arc surface 103 is recessed towards the side where the axis of the transition opening 102 is located, so that the protrusion direction of the flow guiding concave arc surface 103 is opposite to the protrusion direction of the transition convex arc surface 105.

[0046] When the fluid in the receiving cavity 101 comes into contact with the guide concave arc surface 103, the shape of the guide concave arc surface 103 can guide the fluid to flow smoothly along the contour of the concave arc surface. For example, it can guide the fluid to flow in the direction of the transition opening 102, while reducing the turbulence and resistance generated by the fluid during the flow process. This makes it easier for the fluid to form a stable laminar flow state in the receiving cavity 101, which helps the fluid to be evenly distributed in the receiving cavity 101 and prevents the formation of accumulation or dead zones in certain areas. The transition convex arc surface 105 can establish a smooth transition area between the guide concave arc surface 103 and the flange wall surface 104, so that after the fluid flows through the guide concave arc surface 103, it can smoothly transition to the flange wall surface 104, reducing the energy loss and possible turbulence generation of the fluid during the transition process.

[0047] It is worth noting that the bending direction of the transition convex arc surface 105 is designed to be opposite to that of the flow guiding concave arc surface 103. That is, the flow guiding concave arc surface 103 is recessed on the side away from the axis of the transition opening 102, while the transition convex arc surface 105 is protruded on the side close to the axis of the transition opening 102. This can further enhance the guidance and stability of the fluid in the receiving cavity 101. Through this design, the fluid can form a more orderly and efficient flow pattern in the receiving cavity 101, thereby improving the performance and efficiency of the entire system.

[0048] like Figure 3 As shown, in some embodiments, a first included angle α is formed between the outer tangent of the flow guiding concave arc surface 103 and the axis of the transition opening 102, and the first included angle α gradually increases from the flange wall surface 104 toward the flow guiding concave arc surface 103, and α satisfies: 90°<α<180°, that is, the first included angle α is an obtuse angle.

[0049] Similarly, a second included angle β is formed between the external tangent of the transition convex arc surface 105 and the axis of the transition opening 102. From the flange wall surface 104 toward the guide flow concave arc surface 103, the second included angle β gradually decreases, and β satisfies: 90°<β<180°, and the second included angle β is an obtuse angle.

[0050] Specifically, starting from the flanged wall 104 and moving towards the guide concave arc surface 103, the first included angle α gradually increases. This gradually increasing first included angle α facilitates smoother flow of the fluid along the contour of the concave arc surface 103 to the transition opening 102 or into the receiving cavity 101 when the fluid comes into contact with it, thus reducing fluid turbulence and resistance. Simultaneously, because α is an obtuse angle, the fluid is more likely to form a stable laminar flow state during the flow process, preventing accumulation and dead zones in specific areas.

[0051] However, unlike the first included angle α, the second included angle β gradually decreases from the flanged wall surface 104 toward the guide concave arc surface 103, so that when the fluid flows through the transition convex arc surface 105, it can gradually transition from the transition convex arc surface 105 to the flanged wall surface 104, forming a smooth flow transition. As β gradually decreases, the energy loss and turbulence generation of the fluid during the transition process are also reduced accordingly, enhancing the continuity and stability of the fluid flow.

[0052] Therefore, by gradually increasing the first included angle α and gradually decreasing the second included angle β, the fluid can form a smoother flow path within the receiving cavity 101, reducing turbulence and resistance, and improving flow efficiency and stability.

[0053] like Figure 3 and Figure 4As shown, in some embodiments, the vertical distance d from the wall of the receiving cavity 101 to the axis of the transition opening 102 is defined as d, which can also be described as the vertical distance d from the transition convex surface 105 to the axis of the transition opening 102, and the vertical distance d from the guide concave surface 103 to the axis of the transition opening 102. Figure 2 The distance d marked in the middle.

[0054] Specifically, the vertical distance d from the flanged wall 104 toward the guide concave arc surface 103 gradually increases, causing the cross-sectional area of ​​the receiving cavity 101 defined by the transition convex arc surface 105 and the guide concave arc surface 103 to also gradually increase. This allows the receiving cavity 101 to hold more fluid. In certain areas of the receiving cavity 101, especially near the flanged wall 104, the fluid flowing into the receiving cavity 101 from the transition opening 102 is prone to accumulate due to the reduced flow velocity. However, by gradually increasing the distance d, the fluid in these areas is effectively guided to the guide concave arc surface 103 and flows along the guide concave arc surface 103 to all parts of the receiving cavity 101, thereby preventing the accumulation phenomenon and making the fluid uniformly distributed in the receiving cavity 101.

[0055] like Figure 3 As shown, in some embodiments, along the axial direction of the transition opening 102, the length of the flanged wall 104 is the vertical distance a between the first end face 106 and the bending line 107, and the depth to which the adapter tube 2 is inserted into the transition opening 102 is defined as b, and the relationship between a and b satisfies that b is less than or equal to the maximum value of a.

[0056] Optionally, the value of a is within the range of 1mm≤a≤3mm, so that the flange 12 can define the transition opening 102, and the length of the flange 12 is not too long, so that it is convenient to install other parts, and the length of the flange 12 is not too short, so that the transition opening 102 has sufficient structural strength.

[0057] Alternatively, b satisfies: 0 < b ≤ 3 mm, and a ≥ b. Thus, within the length range of a, the adapter tube 2 can be inserted into the adapter opening 102, and one end of the adapter tube 2 is always located inside the adapter opening 102, that is, the adapter tube 2 does not extend into the receiving cavity 101. This allows the adapter tube 2 to be connected to the adapter opening 102, and reduces the flow resistance generated by the adapter tube 2 in the receiving cavity 101, so that the fluid can flow more smoothly in the receiving cavity 101.

[0058] like Figure 5 and Figure 6As shown, in some embodiments, the adapter 2 may include a pipe body 21 and a positioning part 4. A portion of the pipe body 21 is inserted into the adapter opening 102. The outer wall surface of the pipe body 21 may be provided with the positioning part 4. Along the axial direction of the adapter 2, the positioning part 4 may be used to define the depth of the adapter 2 inserted into the adapter opening 102, so that one end of the adapter 2 inserted into the adapter opening 102 is located inside the adapter opening 102.

[0059] Specifically, the positioning part 4 can be at least one of a protrusion, a protruding ring, or a protruding strip. When the positioning part 4 is a protrusion protruding from the outer wall surface of the pipe body 21, the positioning part 4 can include multiple protrusions. Along the circumference of the pipe body 21, multiple protrusions can be sequentially and spaced apart on the outer wall surface of the pipe body 21. When one end of the pipe body 21 is inserted into the transition opening 102, multiple protrusions can abut against the end face of the transition opening 102 facing away from the receiving cavity 101, so as to restrict the pipe body 21 from continuing to extend into the transition opening 102, so that the end of the pipe body 21 inserted into the transition opening 102 is located in the transition opening 102. By setting the positioning part 4, it is convenient to install the pipe body 21 into the transition opening 102 and to prevent the pipe body 21 from extending into the receiving cavity 101.

[0060] In some other embodiments, the positioning part 4 may also include multiple protrusions, which are sequentially and spaced apart on the outer wall surface of the pipe body 21 along the circumference of the pipe body 21. The sides of the multiple protrusions facing the transition opening 102 are coplanar with each other, so that when the pipe body 21 is inserted, the multiple protrusions can abut against the end face of the transition opening 102 facing away from the receiving cavity 101. The positioning part 4 may also be a protruding ring, which extends around the circumference of the pipe body 21. When the pipe body 21 is inserted into the transition opening 102, the protruding ring is parallel to the end face of the transition opening 102 facing away from the receiving cavity 101. As the pipe body 21 is continuously inserted into the transition opening 102, the protruding ring can abut against the end face of the transition opening 102 facing away from the receiving cavity 101 to limit the pipe body 21 from further extending into the transition opening 102, so that the end of the pipe body 21 inserted into the transition opening 102 is located inside the transition opening 102.

[0061] like Figure 3 and Figure 4 As shown, in some embodiments, the pipeline integration module 100 may further include a solder layer 3, with the end face of the flange 12 facing the positioning part 4 defined as the first end face 106. A portion of the solder layer 3 connects the positioning part 4 and the first end face 106, and another portion of the solder layer 3 fills the gap between the inner wall of the transition opening 102 and the outer wall of the transition pipe 2, so that the solder layer 3 can fix the transition pipe 2 to the transition opening 102.

[0062] Specifically, the solder can be placed on the lower side of the positioning part 4 and the solder can be pressed tightly against the first end face 106. Preferably, the solder placed between the positioning part 4 and the first end face 106 is a solder ring 5. The solder ring 5 is sleeved on the outer wall of the adapter pipe 2 and clamped between the positioning part 4 and the first end face 106. After automated welding, the solder melts and the molten solder flows into the space between the inner wall of the adapter opening 102 and the outer wall of the adapter pipe 2 to form a portion of the solder layer 3. The solder layer 3 connects the adapter pipe 2 and the adapter opening 102. By setting the positioning part 4 on the outer wall of the adapter pipe 2, the solder can be placed conveniently, so that the solder can be clamped in the welding position before welding and the solder can be prevented from shaking during welding, which would lead to an unstable weld.

[0063] like Figure 3 and Figure 4 As shown, in some embodiments, the distance between the positioning part 4 and the first end face 106 is L. The portion of the adapter tube 2 inserted into the adapter opening 102 has a second end face 108. The second end face 108 forms an angle with the axis of the adapter tube 2. For example, the second end face 108 is perpendicular to the axis of the adapter tube 2 or forms an acute angle. The distance between the positioning part 4 and the second end face 108 is c, where the value of c satisfies: 0 < c ≤ a + L. By limiting c to be less than or equal to a+L, solder can be sandwiched between the positioning part 4 and the first end face 106, so that the end of the adapter tube 2 inserted into the adapter opening 102 does not extend into the receiving cavity 101. Thus, when the adapter tube 2 is inserted into the adapter opening 102, the solder can abut against the first end face 106, and the solder can also support the positioning part 4, so that the adapter tube 2 cannot continue to extend into the adapter opening 102. At this time, the end of the adapter tube 2 inserted into the adapter opening 102 is located in the adapter opening 102. Due to the limiting effect of the solder and the positioning part 4, the adapter tube 2 is not inserted into the receiving cavity 101.

[0064] Therefore, when the value range of c satisfies: 0<c≤a+L, sufficient distance can be reserved to clamp the solder between the positioning part 4 and the first end face 106. At the same time, the positioning part 4 can also continue to limit the depth of the adapter tube 2 inserted into the adapter opening 102, so that one end of the adapter tube 2 inserted into the adapter opening 102 is located inside the adapter opening 102, that is, the second end face 108 is located inside the adapter opening 102.

[0065] In some embodiments, the value of L is in the range of 0.2mm≤L≤2mm. Since the diameter of the adapter opening 102 and the diameter of the adapter tube 2 are matched, the adapter tube 2 can be inserted into the adapter opening 102. Therefore, there is a certain gap between the inner wall surface of the adapter opening 102 and the outer wall surface of the adapter tube 2, so that the molten solder can fill the gap.

[0066] When L is less than 0.2mm, the distance between the positioning part 4 and the first end face 106 is too small, resulting in a small volume of solder that can be clamped between the positioning part 4 and the first end face 106. During welding, the molten solder may not be able to fill the gap between the outer wall of the adapter pipe 2 and the inner wall of the adapter opening 102, resulting in an unstable weld and the possibility of fluid leakage.

[0067] When L is greater than 2mm, the distance between the positioning part 4 and the first end face 106 is too large, which requires more solder to clamp the solder between the positioning part 4 and the first end face 106. However, if too much molten solder is used, after filling the gap between the outer wall of the adapter pipe 2 and the inner wall of the adapter opening 102, there will still be molten solder flowing into the receiving cavity 101 along the guide concave arc surface 103, which will form turbulent protrusions in the receiving cavity 101 and increase the flow resistance in the receiving cavity 101.

[0068] Therefore, when the value of L is within the range of 0.2mm≤L≤2mm, the solder can be firmly clamped between the positioning part 4 and the first end face 106, and the molten solder can fill the gap between the outer wall surface of the adapter pipe 2 and the inner wall surface of the adapter opening 102, and no excess solder will continue to flow into the receiving cavity 101.

[0069] In some embodiments, a solder receiving space can be formed between the flanged wall surface 104 and the second end face 108, so that the molten solder can flow along the outer wall surface of the adapter pipe 2 to the space between the flanged wall surface 104 and the second end face 108 and form a partial solder layer 3. The partial solder layer 3 can be connected to the flanged wall surface 104 and the second end face 108 and extend to the transition convex arc surface 105, and even extend to the flow guiding concave arc surface 103, so that the wall surface of the adapter pipe 2 defining the outlet can smoothly transition with the transition convex arc surface 105 or the flow guiding concave arc surface 103, so that the adapter pipe 2 can smoothly communicate with the receiving cavity 101, which can prevent the fluid in the receiving cavity 101 from generating eddies when flowing, and further reduce the flow resistance generated at the connection between the adapter pipe 2 and the receiving cavity 101.

[0070] In some embodiments, the bending line 107 can be a circular line. When the bending line 107 is coplanar with the plane where the second end face 108 is located, or when the plane where the second end face 108 is located is flush with the plane where the bending line 107 is located, the outer wall of the adapter pipe 2 can completely cover the inner wall of the adapter opening 102, i.e., the flanged wall 104. Thus, the pipe opening of the adapter pipe 2 can be connected more smoothly with the transition convex arc surface 105. When the fluid flows into the adapter pipe 2, the fluid can flow directly into the adapter pipe 2 from the receiving cavity 101 through the transition convex arc surface 105, without having to pass through other walls before flowing into the adapter pipe 2, which can further reduce the resistance of the fluid flowing into the adapter pipe 2.

[0071] like Figure 1 and Figure 5 As shown, in some embodiments, the first plate 13 and the second plate 14 may together define a plurality of receiving cavities 101, each receiving cavity 101 communicating with at least one transition opening 102 to allow for the smooth flow of fluid.

[0072] Specifically, the first plate 13 may be provided with a plurality of first protrusions 132, and the second plate 14 may be provided with a plurality of second protrusions 142. When the first plate 13 and the second plate 14 are closed together, they can form a plurality of independent protrusions 11. Each protrusion 11 defines a complete receiving cavity 101. The receiving cavity 101 may include at least one of an oil separation cavity and a filter cavity.

[0073] More specifically, the receiving cavity 101 can be an oil separation cavity, a filter cavity, or other cavity with specific functions, depending on actual needs. The mixed fluid can be separated into oil in the oil separation cavity, while the fluid can be filtered to remove impurities and increase the purity of the fluid.

[0074] In some embodiments, the adapter 2 can be either a stainless steel pipe or an aluminum pipe. When the adapter 2 is a stainless steel pipe, a copper layer can be provided at one end of the adapter 2 outside the receiving cavity 101. More specifically, a copper layer can be plated on the outer wall of the adapter 2, or a copper sleeve can be fitted at the end of the adapter 2. The adapter 2 can be connected to the refrigerant pipe through the copper layer. When the adapter 2 is an aluminum pipe, a copper layer can also be provided at one end of the adapter 2 outside the receiving cavity 101. The copper layer can make the adapter 2 more firmly connected to the refrigerant pipe.

[0075] In other embodiments, the adapter pipe 2 can be a copper pipe, which can be directly connected to the refrigerant pipe for a more secure connection.

[0076] See Figure 7 As shown, optionally, one end face of the adapter tube 2 can also be arranged opposite to the end face of the flange 12 facing away from the receiving cavity 101. The end face of the flange 12 facing away from the receiving cavity 101 is defined as the first end face 106, that is, one end face of the adapter tube 2 is arranged opposite to the first end face 106. Solder can be sandwiched between one end face of the adapter tube 2 and the first end face 106. After the solder is heated and melted, the molten solder can form a solder layer 3 between one end face of the adapter tube 2 and the first end face 106. Fixing the adapter tube 2 at the adapter opening 102 can also prevent the adapter tube 2 from being inserted into the receiving cavity 101, so that the adapter tube 2 will not generate large flow resistance and pressure loss in the receiving cavity 101.

[0077] See Figure 8As shown, optionally, the inner wall surface of the adapter pipe 2 can be joined with the outer wall surface of the adapter opening 102, and the solder can be placed on the end face of the flange 12 facing away from the receiving cavity 101. After the solder is heated and melted, the molten solder can fill the space between the inner wall surface of the adapter pipe 2 and the outer wall surface of the adapter opening 102 to form a solder layer 3. Fixing the adapter pipe 2 at the adapter opening 102 can also prevent the adapter pipe 2 from being inserted into the receiving cavity 101, so that the adapter pipe 2 will not generate large flow resistance and pressure loss in the receiving cavity 101.

[0078] This application also proposes an outdoor unit, which includes the piping integration module 100 as described above. The piping integration module 100 of the outdoor unit is connected to the indoor heat exchanger through pipes to form a refrigerant circulation.

[0079] The beneficial effects of the outdoor unit in this application are the same as those of the pipeline integration module 100 in this application, and will not be repeated here.

[0080] This application also provides a heating, ventilation, and air conditioning (HVAC) device, including the outdoor unit described above, an indoor unit that forms a refrigerant circulation loop, and a refrigerant pipe connecting the outdoor unit and the indoor unit.

[0081] The beneficial effects of the HVAC equipment in this application are the same as those of the pipeline integration module 100 in this application, and will not be repeated here.

[0082] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0083] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pipeline integration module, characterized in that, include: First plate; The second plate covers the first plate and together defines a receiving cavity for containing fluid. At least one of the first plate and the second plate has a flange. The flange has a transition opening communicating with the receiving cavity. The wall surface defining the receiving cavity includes a transition convex arc surface. The transition convex arc surface protrudes toward the side where the axis of the transition opening is located. The wall surface defining the transition opening includes a flange wall surface. The transition convex arc surface is connected to the flange wall surface. The adapter pipe is inserted into the adapter opening and, along the flanged wall surface toward the transition convex surface, the portion of the adapter pipe inserted into the adapter opening does not completely extend beyond the transition convex surface; The flange has a first end face that is angled to the flange wall surface. The connection between the flange wall surface and the transition convex arc surface is a bend line. Along the axial direction of the transition opening, the bend line has a vertex near the first end face and a bottom point away from the first end face. The end of the adapter tube that is inserted into the transition opening has a second end face. The second end face is angled to the axis of the adapter tube. Wherein, the second end face is located between the first end face and the vertex of the bending line; or... The second end face is located between the vertex and the basal point of the bend line; or, The second end face is coplanar with the vertex of the bending line.

2. The pipeline integration module according to claim 1, characterized in that, The wall surface defining the receiving cavity also includes a flow-guiding concave arc surface, which is connected to the transition convex arc surface, and the flow-guiding concave arc surface is recessed on the side away from the axis of the transition opening.

3. The pipeline integration module according to claim 2, characterized in that, The external tangent of the flow-guiding concave arc surface forms a first included angle α with the axis of the transition opening. From the transition opening toward the flow-guiding concave arc surface, the first included angle α gradually increases, and α satisfies: 90° < α < 180°; and / or, The outer tangent of the transition convex arc surface forms a second included angle β with the axis of the transition opening. From the transition opening toward the guide concave arc surface, the second included angle β gradually decreases, and β satisfies: 90°<β<180°.

4. The pipeline integration module according to claim 1, characterized in that, The adapter includes a pipe body and a positioning part. A portion of the pipe body is inserted into the adapter opening, and the positioning part protrudes from the outer wall of the pipe body to define the depth to which the adapter is inserted into the adapter opening.

5. The pipeline integration module according to claim 4, characterized in that, The pipeline integration module also includes a solder layer, a portion of which fills the gap between the wall of the transition opening and the outer wall of the transition pipe; The flange has a first end face facing the positioning part, and another part of the solder layer is connected to the positioning part and the first end face.

6. The pipeline integration module according to claim 1, characterized in that, The pipeline integration module also includes a solder layer, a portion of which fills the gap between the wall of the transition opening and the outer wall of the transition pipe; One end of the adapter pipe, which is inserted into the adapter opening, has a second end face that forms an angle with the axial direction of the adapter opening. Another portion of the solder layer extends to the wall surface connecting the second end face and the receiving cavity.

7. The pipeline integration module according to claim 1, characterized in that, The connection between the transition convex arc surface and the flanged wall surface is a bend line. One end of the adapter pipe that is inserted into the adapter opening has a second end face. The second end face is set at an angle to the axis of the adapter pipe, and the bend line is located in the plane of the second end face.

8. The pipeline integration module according to claim 1, characterized in that, The first plate and the second plate together define a plurality of the receiving cavities, each of the receiving cavities communicating with at least one of the transition openings; The receiving cavity includes at least one of an oil separation cavity and a filtration cavity.

9. An outdoor unit, wherein its piping connects to the indoor heat exchanger of an indoor unit to form a refrigerant circulation, characterized in that, Includes the pipeline integration module as described in any one of claims 1-8.

10. A heating, ventilation, and air conditioning (HVAC) device, characterized in that, It includes the outdoor unit as described in claim 9, and includes an indoor unit and a refrigerant pipe connecting the outdoor unit and the indoor unit.

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