A kind of air conditioner compressor liquid storage tank pipeline welding structure

Abstract

The application relates to a kind of liquid storage tank pipeline welding structures for air conditioner compressor, relating to compressor equipment technical field, it includes tank body, tank body is along the two ends of axis respectively opened with import and export, and at the position of import and export, welded with the connecting pipe of compressor main body connection, connecting pipe includes three calibers gradually increasing pipe one, pipe two and pipe three, the side wall of pipe one, pipe two and pipe three is sequentially adhered together, pipe three is set in the outside of tank body import and export, pipe two is cooperated in import and export, and pipe one is cooperated in the inside of pipe two, define the end of pipe two away from tank body at plane as reference surface, pipe one end surface is located on the side of reference surface close to tank body, pipe three end surface is located on the side of reference surface away from tank body, pipe one, pipe two and pipe three form annular groove together, annular groove is filled with molten material.The application provides a new type of liquid storage tank pipeline welding structure, so that the tank body and connecting pipe welding structure are more firm, and the gas tightness in the liquid storage tank is improved.

Description

Technical Field

[0001] This application relates to the field of compressor equipment technology, and in particular to a welded structure for a liquid receiver tank pipeline for an air conditioning compressor. Background Technology

[0002] The air conditioner compressor is the core component of the air conditioning refrigeration system. Its core function is to transfer heat by compressing and circulating the refrigerant, thereby achieving the purpose of cooling or heating. The compressor achieves the "transportation" of heat through mechanical compression, and its performance directly determines the cooling / heating effect and energy consumption level of the air conditioner. The air conditioner compressor's liquid receiver is an important component of the refrigeration system, mainly used to store high-pressure refrigerant liquid, separate gas and liquid, and filter impurities, while also playing a role in pressure buffering and noise reduction.

[0003] The liquid storage tank mainly consists of a tank body and connecting pipes that connect the tank body's inlet and outlet to other components of the compressor. To save production costs and facilitate welding, the tank body and connecting pipes are usually made of different materials. Since the liquid storage tank has strict requirements for sealing during operation, the welding quality of the welded structure between the connecting pipes and the tank body is particularly important. Utility Model Content

[0004] In order to improve the welding quality and sealing performance of the welded structure between the tank body and the connecting pipe of the air conditioner compressor liquid receiver, this application provides a welding structure for the liquid receiver pipe of an air conditioner compressor.

[0005] The technical solution provided in this application for a welded structure of a liquid storage tank pipeline for an air conditioning compressor is as follows:

[0006] A welded structure for a liquid storage tank pipeline of an air conditioner compressor includes a tank body for storing liquid. The tank body has an inlet and an outlet at both ends along its axis. Connecting pipes for connection to the compressor body are welded at both the inlet and the outlet. Each connecting pipe includes three pipes (pipe 1, pipe 2, and pipe 3) with progressively increasing diameters. The sidewalls of pipe 1, pipe 2, and pipe 3 are sequentially abutted together. Pipe 3 is fitted outside the inlet and outlet of the tank body, pipe 2 fits inside the inlet and outlet, and pipe 1 fits inside pipe 2.

[0007] The end of the second tube away from the tank is defined as the plane as the reference plane. The end face of the first tube is located on the side of the reference plane closer to the tank. The end face of the third tube is located on the side of the reference plane away from the tank. The first tube, the second tube, and the third tube together form an annular groove, which is filled with molten material for welding.

[0008] Optionally, the outer surface of the first tube is a conical surface, and the radial area of ​​the outer surface of the first tube gradually increases along the axis towards the tank body. The position of the maximum radial area of ​​the outer surface of the first tube is in close contact with the inner wall of the second tube. An annular compensation filling area is formed between the conical surface of the outer wall of the first tube and the inner surface of the second tube. The compensation filling area is connected to the bottom side of the annular groove, and the compensation filling area is also filled with the molten material.

[0009] Optionally, the edge of the tube one away from the tank body is provided with a chamfer, and the chamfer and the inner sidewall of the tube two form a leveling compensation area that communicates with the annular groove. The leveling compensation area is filled with the molten material, and the surface of the molten material is flush with or below the port of the leveling compensation area.

[0010] Optionally, the distance between the end face of the third tube near the tank and the reference plane is greater than the distance between the end face of the first tube away from the tank and the reference plane.

[0011] Optionally, the outer diameter of the third tube is equal to the outer diameter of the tank at both the inlet and outlet positions.

[0012] Optionally, the first tube, the second tube, and the third tube are made of materials with different coefficients of thermal expansion, wherein the coefficient of thermal expansion of the first tube is greater than that of the second tube, which is greater than that of the third tube.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] 1. This application provides a novel pipeline welding structure for an air conditioning compressor liquid storage tank, thereby improving the stability of the welding structure and the airtightness of the welded structure between the tank body and the connecting pipe, and improving the overall quality of the welding structure;

[0015] 2. The weld structure of this application has a larger contact area between the molten welding material and the welded parts, making the weld structure more robust and improving the overall service life of the storage tank. Attached Figure Description

[0016] Figure 1 This is an overall structural cross-sectional view of a liquid storage tank pipeline welding structure for an air conditioning compressor according to this application.

[0017] Figure 2 yes Figure 1 A magnified view of point A in the middle.

[0018] Explanation of reference numerals in the attached drawings: 1. Tank body; 11. Inlet; 12. Outlet; 2. Connecting pipe; 21. Pipe 1; 22. Pipe 2; 23. Pipe 3; 3. Reference surface; 4. Annular groove; 41. Molten material; 5. Compensation filling area; 6. Chamfer; 61. Flattening compensation area. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0020] This application discloses a welding structure for a liquid storage tank pipeline of an air conditioning compressor.

[0021] Reference Figure 1 A pipe welding structure for a liquid receiver tank of an air conditioner compressor is disclosed, specifically comprising a tank body 1 for storing liquid refrigerant in the air conditioner compressor. The tank body 1 is a cylindrical structure with an inlet 11 and an outlet 12 extending through both ends along its axis. Connecting pipes 2, with their other ends connected to the compressor body, are welded to both the inlet 11 and the outlet 12. To meet the welding requirements with the compressor body and reduce production costs, the tank body 1 and the connecting pipe 2 are made of different materials. Preferably, the tank body 1 is made of high-pressure-resistant steel, while the connecting pipe 2 is made of copper tubing, which has good weldability.

[0022] Reference Figure 1 and Figure 2 Furthermore, the connecting pipe 2 specifically includes three pipes, namely pipe 21, pipe 22, and pipe 23, with successively increasing diameters. The sidewalls of pipes 21, 22, and 23 are sequentially attached to each other to form a relatively airtight structure. Among them, pipe 23 is sleeved on the outside of the inlet / outlet 12 of the tank body 1; pipe 22 is fitted on the inside of the inlet / outlet 12, and the space between its outside and pipe 23 is filled with welded molten material 41; pipe 21 is fitted through the inside of pipe 22.

[0023] This application defines the radial plane of the end of pipe 22 furthest from tank 1 as reference plane 3. The end face of pipe 1 near tank 1 is located on the side of reference plane 3 closest to tank 1, while the end face of pipe 3 furthest from tank 1 is located on the side of reference plane 3 furthest from tank 1. Under these conditions, pipes 21, 22, and 23 together form an annular groove 4 with its opening facing outwards from tank 1 at the reference plane 3. The annular groove 4 is filled with molten material 41 for welding to achieve a stable welded structure. Simultaneously, under these structural conditions, gas cannot easily leak out from this location, improving the overall airtightness of the storage tank.

[0024] As a suitable solution for this application, brass is preferably used as the material for the molten material 41. Brass has strong resistance to corrosive media such as acids, alkalis, and salts, making it suitable for chemical environments such as those involving refrigerants that the storage tank may come into contact with. Furthermore, brass has a smooth and uniform surface, making it less prone to leakage after welding and meeting the sealing requirements of the storage tank. For the purpose of reducing production costs, brass is the most suitable material for the molten material 41.

[0025] Preferably, in this application, the distance between the end face of pipe 23 closest to the tank body 1 and the reference surface 3 should be greater than the distance between the end face of pipe 21 away from the tank body 1 and the reference surface 3, so that pipe 23 can fully wrap around pipe 22 and pipe 21, forming a more stable welded structure. The greater this distance difference, the longer the overlap between pipe 21, pipe 22 and pipe 23 at the welding position, and the more stable the welded structure of the liquid storage tank.

[0026] Preferably, pipe 21, pipe 22, and pipe 23 can also be made of materials with different coefficients of thermal expansion. If the coefficients of thermal expansion of pipe 21, pipe 22, and pipe 23 satisfy the condition: pipe 21 > pipe 22 > pipe 23, then welding will make the fit between the three pipes tighter, further strengthening the welded structure and improving the overall airtightness of the liquid storage tank.

[0027] Reference Figure 1 and Figure 2 The outer surface of pipe 21 is tapered, and its radial area gradually increases along the axis towards tank 1. The position of the maximum radial area of ​​the outer surface of pipe 21 is in close contact with the inner surface of pipe 22 to prevent molten material 41 from entering the interior of tank 1. At this time, the tapered structure on the outer side of pipe 21 and the inner wall of pipe 22 together form a compensation filling area 5, whose top is connected to the bottom side of the annular groove 4. The compensation filling area 5 is also filled with molten material 41 to increase the welding area between pipe 21 and pipe 22, thereby improving the welding quality and welding effect.

[0028] Reference Figure 1 and Figure 2 Furthermore, a chamfer 6 is provided circumferentially on the edge of pipe 21 at the end furthest from tank 1. The chamfer 6 and the inner wall of pipe 22 together form a flattening compensation area 61 that communicates with the annular groove 4 on the bottom side. The flattening compensation area 61 is also filled with molten material 41, and when brazing is used, the solder can completely fill the flattening compensation area 61 without protruding above the top side of pipe 21, making the weld smoother and more aesthetically pleasing, and also facilitating subsequent weld finishing.

[0029] Reference Figure 1 and Figure 2Furthermore, the outer diameter of pipe 23 is equal to the outer diameter of tank 1 at the inlet 11 and outlet 12, so that the surface of the liquid storage tank is smoother and the airtightness is improved.

[0030] The implementation principle of the welding structure for the liquid storage tank pipeline of an air conditioner compressor in this application is as follows:

[0031] This application utilizes the superposition of pipe 1 (21), pipe 2 (22), and pipe 3 (23) to form a robust welded structure between the tank body 1 and the connecting pipe 2 on the air conditioning compressor liquid receiver tank. Compared to traditional structures using a single pipe for welding, this application not only improves the stability of the welded structure but also enhances the overall sealing performance of the liquid receiver tank, giving it excellent practical performance.

[0032] In the solution presented in this application, after the positions of pipe 1 21, pipe 22, and pipe 3 23 are aligned, molten welding material 41 needs to be filled into the annular groove 4. The presence of molten welding material 41 not only provides a sealing effect but also effectively connects the various pipes, making the welded structure more robust. Compared to traditional welding structures, the solution in this application has a larger contact area between the welding molten material 41 and pipes 1 21, 22, and 23, resulting in better weld quality.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A welded structure for a liquid storage tank pipeline for an air conditioning compressor, comprising a tank body (1) for storing liquid, wherein the tank body (1) has an inlet (11) and an outlet (12) respectively opened at both ends along the axis, and a connecting pipe (2) for connecting to the compressor body is welded at both the inlet (11) and the outlet (12), characterized in that: The connecting pipe (2) includes three pipes, namely pipe one (21), pipe two (22), and pipe three (23), with their diameters increasing sequentially. The side walls of pipe one (21), pipe two (22), and pipe three (23) are attached to each other in sequence. Pipe three (23) is fitted outside the inlet and outlet (12) of the tank body (1), pipe two (22) is fitted inside the inlet and outlet (12), and pipe one (21) is fitted inside pipe two (22). The end of the second tube (22) away from the tank (1) is defined as the reference plane (3). The end face of the first tube (21) is located on the side of the reference plane (3) closer to the tank (1). The end face of the third tube (23) is located on the side of the reference plane (3) away from the tank (1). The first tube (21), the second tube (22) and the third tube (23) together form an annular groove (4). The annular groove (4) is filled with molten material (41) for welding.

2. The welding structure of the liquid storage tank pipeline for an air conditioning compressor according to claim 1, characterized in that: The outer surface of the first tube (21) is tapered, and the radial area of ​​the outer surface of the first tube (21) gradually increases along the axis toward the tank (1). The position of the maximum radial area of ​​the outer surface of the first tube (21) is in close contact with the inner wall of the second tube (22). An annular compensation filling area (5) is formed between the tapered surface of the outer wall of the first tube (21) and the inner surface of the second tube (22). The compensation filling area (5) is connected to the bottom side of the annular groove (4), and the compensation filling area (5) is also filled with the molten material (41).

3. The welding structure of the liquid storage tank pipeline for an air conditioning compressor according to claim 2, characterized in that: The edge of the first tube (21) away from the tank (1) is provided with a chamfer (6). The chamfer (6) and the inner wall of the second tube (22) form a leveling compensation area (61) that communicates with the annular groove (4). The leveling compensation area (61) is filled with the molten material (41), and the surface of the molten material (41) is flush with or below the port of the leveling compensation area (61).

4. The welding structure of the liquid storage tank pipeline for an air conditioning compressor according to claim 3, characterized in that: The outer diameter of the tube 3 (23) is the same as the outer diameter of the tank body (1) at the inlet (11) and the outlet (12).

5. The welding structure of the liquid storage tank pipeline for an air conditioning compressor according to claim 1, characterized in that: The distance between the end face of the third tube (23) near the tank (1) and the reference surface (3) is greater than the distance between the end face of the first tube (21) away from the tank (1) and the reference surface (3).

6. The welding structure of the liquid storage tank pipeline for an air conditioning compressor according to claim 1, characterized in that: The first tube (21), the second tube (22) and the third tube (23) are made of materials with different coefficients of thermal expansion. The coefficient of thermal expansion of the first tube (21) is greater than that of the second tube (22) and the third tube (23).

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