Output pipe assembly

Abstract

The utility model discloses an output pipe assembly which comprises an output pipe, a diverter valve and an air return pipe, the output pipe is connected with the air return pipe through the diverter valve, the air return pipe comprises a first air return pipe and a second air return pipe, the first air return pipe is connected with the second air return pipe, the first air return pipe comprises a plurality of bent parts and a plurality of vertical parts, the bent parts are connected with the vertical parts, and the bent parts are connected with the vertical parts. The bent part is bent in the axial direction away from the vertical part. The radian and orientation of the pipeline can be changed according to actual needs through connection of the first air return pipe and the second air return pipe, the pipeline has a certain radian and is in a vertical crossing shape as a whole by arranging a plurality of bent parts in the pipeline, resonance with other mechanical structures is avoided, the stability of the pipelines in the operation process is improved, and the vibration reduction effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration, and in particular relates to an output pipe component. Background Art

[0002] The air conditioner outdoor unit is generally equipped with components such as a compressor and corresponding output pipelines. If the compressor output pipeline is not designed properly, for example, the curvature of multiple pipelines is not enough, resonance is likely to occur when the compressor is running, that is, the vibration is transmitted to the pipeline connected to the liquid reservoir, and then the pipeline close to the compressor will not only produce a lot of noise, affecting the user's use, but also the continuous friction of the pipeline is prone to deformation, and even broken pipe leakage, reducing the service life of the air conditioner. In order to solve the problem of large pipeline vibration, it is often used to set a counterweight on the pipeline or re-weld the bent pipeline to reduce vibration. However, setting a counterweight increases the assembly cost. On the other hand, it is difficult to ensure the stability of the pipeline after welding if the pipeline is severely deformed and then re-welded, which is easy to cause repeated maintenance. Utility Model Content

[0003] The purpose of the utility model is to provide an output pipe assembly, which can solve at least one of the above problems.

[0004] According to one aspect of the utility model, an output pipe assembly is provided, comprising an output pipe, a diverter valve and a return pipe, the output pipe and the return pipe are connected via the diverter valve, the return pipe comprises a first return pipe and a second return pipe, the first return pipe and the second return pipe are connected, the first return pipe comprises a plurality of bent portions and a plurality of vertical portions, the bent portions are connected to the vertical portions, and the bent portions are bent in an axial direction away from the vertical portions.

[0005] The beneficial effects of the utility model are: by improving the pipeline structure of the return air pipe, the curvature and direction of the pipeline can be changed, and by providing multiple bending parts in the pipeline, the pipeline has a certain curvature, and the overall three-dimensional cross shape is avoided to avoid resonance with other mechanical structures, so that the stability of each pipeline in operation is improved, and the vibration reduction effect is improved. At the same time, there is no need to add other counterweight objects in the piping, reducing the assembly cost of the entire pipe fitting.

[0006] In some embodiments, multiple bending portions and vertical portions are cross-connected at intervals, and the axis angle of the vertical portions at both ends of the bending portions is 90 degrees to 135 degrees. Thus, the bending portions bend in different directions, reducing vibration from multiple directions, increasing the spatial three-dimensionality of the first air return pipe, further improving the pipeline stability, and making the first air return pipe have better vibration reduction performance.

[0007] In some embodiments, a positioning concave point is provided on the outer circumference of one end of the first air return pipe, the diameter of the second air return pipe is smaller than the diameter of the first air return pipe, and the end of the first air return pipe provided with the positioning concave point is connected to one end of the second air return pipe. Therefore, when assembling the pipeline, it can be directly positioned by the positioning concave point without relying on manual repeated measurement of the connection depth, thereby ensuring the tightness of the pipeline connection and facilitating the subsequent welding process.

[0008] In some embodiments, the other end of the first air return pipe is provided with a closing structure with a gradually reduced diameter, and the diameter of the end of the closing structure is smaller than the diameter of the end of the diverter valve. Thus, the air return pipe can be used as a bayonet through the closing structure, without the need to use other connectors to connect with other components.

[0009] In some embodiments, the diverter valve is a three-way valve, one end of the return pipe with a closing structure is connected to the main pipe of the three-way valve, and one end of the two output pipes is connected to one of the branch ports of the three-way valve. Thus, the three-way pipe can be used to achieve internal diversion or confluence of the pipeline.

[0010] In some embodiments, a process pipe is further included, and a connecting hole is provided on the second return air pipe, and the process pipe is connected to the second return air pipe through the connecting hole, so that refrigerant can be added directly through the process pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the output pipe assembly of the utility model;

[0012] Figure 2 This is a structural schematic diagram of the output tube assembly of the utility model from one perspective;

[0013] Figure 3 This is a structural schematic diagram of the output tube assembly of the utility model from another perspective;

[0014] Figure 4 It is a structural schematic diagram of the first air return pipe in the output pipe assembly of the utility model. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] Reference Figure 1 to Figure 4: The output pipe 1 assembly includes an output pipe 1, a diverter valve 2 and a return pipe, the output pipe 1 and the return pipe are connected through the diverter valve 2, the return pipe includes a first return pipe 4 and a second return pipe 3, the first return pipe 4 and the second return pipe 3 are connected, the first return pipe 4 includes a plurality of bending portions 44 and a plurality of vertical portions 43, the bending portions 44 are connected to the vertical portions 43, and the bending portions 44 are bent in an axial direction away from the vertical portions 43. That is to say, after the bending portions 44 are bent in different directions, the multiple pipelines of the first return pipe 4 may not be in the same plane, so that the return pipe has a certain curvature and is in a three-dimensional cross shape as a whole, so as to further improve the pipeline stability and improve the vibration reduction effect of the return pipe itself.

[0017] During actual production, the first air return pipe 4 is bent according to the bending requirements inside various models, connected to the second air return pipe 3, and then respectively connected to other diverter valves 2 and output pipe 1, and then the connections are welded to ensure the tightness of the connection. Preferably, the first air return pipe 4 and the second air return pipe 3 are an integrated structure, and only the air return pipe needs to be connected to other components, without the need to change the direction of the pipeline by welding other elbows, which helps to reduce production costs, simplify the process, and improve assembly efficiency. Through the connection between the first air return pipe 4 and the second air return pipe 3, the curvature and direction of the pipeline can be changed according to actual needs, without the need to add other counterweights to the piping, thereby reducing the assembly cost of the entire pipe fitting.

[0018] A plurality of bending portions 44 and a plurality of vertical portions 43 are cross-connected and spaced apart, that is, one end of the bending portion 44 is connected to the vertical portion 43, and the other end of the bending portion 44 is connected to another vertical portion 43, so that the bending portion 44 is arranged between two vertical portions 43, forming a plurality of "U"-shaped and inverted "U"-shaped structures. The axis angles of the vertical portions 43 at both ends of the bending portion 44 are 90 degrees to 135 degrees, that is, the angle formed by the extension of the axis of the bending portion 44 can be between 90 degrees and 135 degrees. For example, after the bending portion 44 is bent, the angle between the two adjacent vertical portions 43 of the bending portion 44 is 90 degrees, so that the two vertical portions 43 are perpendicular to each other. In actual assembly, it can also be bent to 113 degrees or 135 degrees as needed. In this way, the bending portion 44 is bent in different directions and angles, and vibration is reduced from multiple directions, thereby increasing the spatial three-dimensionality of the first air return pipe 4, so as to further improve the pipeline stability and make the first air return pipe 4 have better vibration reduction performance.

[0019] The outer peripheral surface of one end of the first air return pipe 4 is provided with a positioning concave point 42, and the positioning concave point 42 is recessed toward the inner wall of the air return pipe, so that the inner wall forms a convex shape. The diameter of the second air return pipe 3 is smaller than the diameter of the first air return pipe 4. In this way, when the end of the first air return pipe 4 provided with the positioning concave point 42 is connected to the end of the second air return pipe 3, that is, when the end of the second air return pipe 3 is inserted into the first air return pipe 4, when a certain depth is inserted, the end of the second air return pipe 3 is blocked by the positioning concave point 42, that is, the insertion reaches the connection position, so that the insertion position of the second air return pipe 3 is limited by the positioning concave point 42. Therefore, when assembling the pipeline, it can be directly positioned through the positioning concave point 42, without relying on manual repeated measurement of the connection depth, thereby ensuring the tightness of the pipeline connection and facilitating the subsequent welding process.

[0020] The end of the other end of the first air return pipe 4 is provided with a closing structure 41 with a gradually reduced diameter, that is, the end of the first air return pipe 4 has a structure in which a section of the pipe wall is indented inwardly, and the closing structure 41 with a reduced pipe cross section is formed after the indentation. Due to the indentation, the diameter of the end of the first air return pipe is smaller than the diameter of the end of the diverter valve 2. Therefore, the air return pipe can be used as a bayonet through the closing structure 41, and the first air return pipe 4 is directly inserted into the diverter valve 2, that is, it is connected by plug-in connection, and then welded after connection. The closing structure 41 is used to seal the diverter valve 2 and the air return pipe, and there is no need to use other connectors to connect with other components, so that the cost of processing and assembly is further reduced. Among them, the diverter valve 2 can be a three-way valve, one end of the three-way valve is provided with a main pipe, and the other end is provided with two branch ports. One end of the air return pipe provided with the closing structure 41 is connected to the main pipe of the three-way valve, and one end of the two output pipes 1 is connected to one of the branch ports of the three-way valve. In this way, internal diversion or confluence of the pipeline can be achieved through the three-way pipe.

[0021] The utility model further includes a process pipe 5, through which refrigerant is connected in series or added. A connecting hole is provided on the second return air pipe 3, through which the process pipe 5 is connected to the second return air pipe 3. Preferably, the process pipe 5 is arranged at one end away from the vibrating pipeline, for example, at the top of the second return air pipe 3, to avoid resonance friction between the process pipe 5 and other pipelines, to prevent damage to the process pipe 5, and to further avoid pipeline leakage.

[0022] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. Output pipe assembly, characterized in that, The invention comprises an output pipe (1), a diverter valve (2) and a return pipe, wherein the output pipe (1) and the return pipe are connected via the diverter valve (2), the return pipe comprises a first return pipe (4) and a second return pipe (3), the first return pipe (4) and the second return pipe (3) are connected, the first return pipe (4) comprises a plurality of bent portions (44) and a plurality of vertical portions (43), the bent portions (44) are connected to the vertical portions (43), and the bent portions (44) are bent in an axial direction away from the vertical portions (43).

2. The output pipe assembly according to claim 1, characterized in that: The plurality of bent portions (44) and vertical portions (43) are cross-connected and spaced apart, and the axis angles of the vertical portions (43) at both ends of the bent portions (44) are in the range of 90 degrees to 135 degrees.

3. The output pipe assembly according to claim 1, characterized in that: A positioning concave point (42) is provided on the outer peripheral surface of one end of the first air return pipe (4); the diameter of the second air return pipe (3) is smaller than that of the first air return pipe (4); and one end of the first air return pipe (4) having the positioning concave point (42) is connected to one end of the second air return pipe (3).

4. The output pipe assembly according to claim 3, characterized in that: The other end of the first air return pipe (4) is provided with a closing structure (41) with a gradually decreasing diameter, and the diameter of the end of the closing structure (41) is smaller than the diameter of the end of the diverter valve (2).

5. The output pipe assembly according to claim 4, characterized in that: The diverter valve (2) is a three-way valve, one end of the return air pipe provided with a closing structure (41) is connected to the main pipe of the three-way valve, and one end of the two output pipes (1) is connected to one of the branch ports of the three-way valve.

6. The output pipe assembly according to claim 1, characterized in that: It also comprises a process pipe (5), the second air return pipe (3) is provided with a connecting hole, and the process pipe (5) is connected to the second air return pipe (3) via the connecting hole.

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