Reservoir and compressor

Abstract

The application provides a liquid accumulator and a compressor, and relates to the technical field of compressors.The liquid accumulator comprises a liquid accumulator cylinder and an air inlet pipe, the liquid accumulator cylinder is provided with a port, the outer side surface of the air inlet pipe is integrally provided with a seat ring, the seat ring at least partially extends into the port, and the seat ring is welded to the port through resistance welding.The liquid accumulator is not prone to causing compressor leakage and other whole machine quality problems.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and more specifically, to a liquid receiver and a compressor. Background Technology

[0002] As a key component in the refrigeration system, the manufacturing process of the liquid receiver directly affects the performance and reliability of the entire compressor.

[0003] The welding of the inlet pipe to the cylinder of existing liquid receivers typically employs flame brazing. This process requires the solder to penetrate fully during welding, usually reaching a penetration depth of at least 3 mm, to ensure the receiver's sealing performance under pulsating and pressure conditions. However, flame brazing has certain limitations. Welding parameters are difficult to standardize, and it demands a high level of operator skill, usually requiring experienced workers for debugging to ensure weld quality. Furthermore, due to the complexity of the process, automated production is difficult to achieve, leading to problems such as uneven solder penetration and weld porosity during welding, which can subsequently cause compressor leaks and other overall machine quality issues. Utility Model Content

[0004] The purpose of this application includes, for example, providing a liquid receiver that is less likely to cause overall machine quality problems such as compressor leakage.

[0005] The purpose of this application also includes providing a compressor that can reduce overall machine quality problems such as compressor leakage.

[0006] The embodiments of this application can be implemented as follows:

[0007] An embodiment of this application provides a liquid reservoir, which includes a liquid reservoir body and an air inlet pipe. The liquid reservoir body has a port, and a seat ring is integrally formed on the outer side of the air inlet pipe. The seat ring extends at least partially into the port and is welded to the port by resistance welding.

[0008] Optionally, the air intake pipe is an iron pipe or a stainless steel pipe.

[0009] Optionally, a copper layer is provided on the inner or outer side of the air intake pipe, and the copper layer is used for welding with external air conditioning pipes.

[0010] Optionally, the seat ring has a first end face and a second end face along the axial direction of the air intake pipe, the first end face being located inside the port, the outer diameter of the first end face being smaller than the inner diameter of the port, and the inner diameter of the port being smaller than the outer diameter of the second end face.

[0011] Optionally, the outer diameter of the first end face is 10mm to 14mm, the inner diameter of the port is 11mm to 15mm, and the outer diameter of the second end face is 16mm to 20mm.

[0012] Optionally, the seat ring is provided with a first conical surface, which is connected between the first end face and the second end face, and the first conical surface abuts against the port.

[0013] Optionally, the reservoir body is provided with a second conical surface at the port, and the first conical surface abuts against the second conical surface.

[0014] Optionally, the difference in diameter between the two ends of the second conical surface along its own axis is less than or equal to 1 mm, and the wall thickness of the reservoir cylinder is 1.5 mm to 2.5 mm.

[0015] Optionally, the intake pipe and the seat ring are integrally die-cast.

[0016] This application also provides a compressor including the aforementioned liquid receiver.

[0017] The beneficial effects of the liquid receiver and compressor provided in the embodiments of this application include, for example, in order to alleviate overall machine quality problems such as compressor leakage, a liquid receiver is designed, which includes a liquid receiver cylinder and an air inlet pipe. The liquid receiver cylinder has a port, and a seat ring is integrally formed on the outer side of the air inlet pipe. The seat ring extends at least partially into the port and is welded to the port by resistance welding.

[0018] By integrally forming a seat ring on the outer side of the intake pipe, the seat ring is inserted at least partially into the port of the liquid reservoir body, and the seat ring is welded to the port by resistance welding. The resistance welding method is less likely to cause problems such as uneven solder penetration and weld porosity during the welding process, thus making it less likely to cause compressor leakage and other overall machine quality problems. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view showing the assembly of the air inlet pipe and the liquid reservoir body in an embodiment of this application;

[0021] Figure 2 This is a cross-sectional view of the intake pipe in an embodiment of this application;

[0022] Figure 3 This is a partial cross-sectional view of the reservoir cylinder in an embodiment of this application;

[0023] Figure 4for Figure 3 Enlarged view of part A in the middle.

[0024] Icons: 100 - Liquid reservoir body; 110 - Port; 120 - Second conical surface; 200 - Air inlet pipe; 210 - Seat ring; 211 - First end face; 212 - Second end face; 213 - First conical surface; 220 - Copper layer. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, 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, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0030] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0031] As disclosed in the background section, the welding of the inlet pipe and cylinder of existing liquid receivers typically employs flame brazing. This process requires the solder to penetrate sufficiently during welding, usually reaching a penetration depth of at least 3 mm, to ensure the liquid receiver's sealing performance under pulsating and pressure conditions. However, flame brazing has certain limitations. The welding parameters are difficult to standardize, and it demands a high level of operator skill, typically requiring skilled workers for debugging to ensure welding quality. Furthermore, due to the complexity of the process, automated production is difficult to achieve, leading to problems such as uneven solder penetration and weld porosity during welding, which can result in compressor leaks and other overall machine quality issues. Embodiments of this application provide a liquid receiver that at least addresses the aforementioned technical problems.

[0032] Please refer to Figures 1-4 The liquid reservoir provided in the embodiments of this application includes a liquid reservoir body 100 and an air inlet pipe 200. The liquid reservoir body 100 has a port 110. A seat ring 210 is integrally formed on the outer side of the air inlet pipe 200. The seat ring 210 extends at least partially into the port 110 and is welded to the port 110 by resistance welding.

[0033] As a key component in a refrigeration system, the liquid receiver's structural design and manufacturing process directly affect the overall system's performance and reliability. In this embodiment, the liquid receiver includes a liquid receiver cylinder 100 and an inlet pipe 200. The liquid receiver cylinder 100 has a port 110, while the outer surface of the inlet pipe 200 is integrally formed with a seat ring 210. Integrating the seat ring 210 with the inlet pipe 200 simplifies the assembly process and enhances the mechanical strength of the connection.

[0034] The seat ring 210 extends at least partially into the port 110 of the reservoir body 100 and is welded to the port 110 by resistance welding. Compared with traditional flame brazing, resistance welding has significant advantages. First, resistance welding is a welding method based on the thermal effect of electric current, which can precisely control the temperature and energy distribution during the welding process, thereby achieving high consistency and automated production. This not only improves production efficiency but also reduces reliance on manual operation, making large-scale industrial production more feasible.

[0035] Secondly, resistance welding avoids common problems in flame brazing, such as uneven solder penetration or weld porosity. These issues in flame brazing can easily lead to unstable weld quality, potentially causing compressor leaks and other overall equipment quality problems. Resistance welding, with its concentrated heating and controllable heat distribution, effectively avoids these defects, ensuring the sealing and reliability of the welded area. Furthermore, resistance welding is cleaner than flame brazing, requiring no additional solder or flux, thus avoiding corrosion or other potential problems caused by residues.

[0036] By welding the seat ring 210 to the port 110 of the liquid reservoir body 100 using resistance welding, not only is the level of automation in the production process improved, but the welding quality is also significantly improved, reducing the risk of compressor leakage caused by poor welding.

[0037] In some embodiments, the air intake pipe 200 is an iron pipe or a stainless steel pipe.

[0038] Since the seat ring 210 is integrally formed with the intake pipe 200 on the outer side of the intake pipe 200, when the intake pipe 200 is an iron pipe, the seat ring 210 is made of iron; when the intake pipe 200 is a stainless steel pipe, the seat ring 210 is made of stainless steel.

[0039] In some embodiments, the intake pipe 200 and the seat ring 210 are integrally die-cast.

[0040] The intake pipe 200 and the seat ring 210 are integrally die-cast, significantly improving structural strength and stability. In traditional split designs, the intake pipe 200 and the seat ring 210 need to be joined by welding or other connection methods, which not only increases manufacturing processes but may also create stress concentration points at the joints, reducing the overall structural reliability. Integral die-casting avoids these connection points, making the intake pipe 200 and the seat ring 210 a continuous whole, thereby improving fatigue resistance and durability.

[0041] The integrated die-casting process effectively reduces assembly steps and the number of parts, lowering production costs. In traditional manufacturing, the intake pipe 200 and the seat ring 210 need to be produced separately, followed by assembly and testing. Integrated die-casting eliminates these intermediate steps, simplifying supply chain management and shortening the production cycle. Furthermore, by reducing the tolerances between components, product precision and consistency are improved.

[0042] In addition, the intake pipe 200 and the seat ring 210 are integrally die-cast, so there are no connecting gaps or welds between the intake pipe 200 and the seat ring 210. The inner surface of the intake pipe 200 is smoother, the airflow resistance is reduced, and thus the intake efficiency is improved.

[0043] In some embodiments, a copper layer 220 is provided on the inner side or the outer side of the air intake pipe 200, and the copper layer 220 is used for welding with external air conditioning pipes.

[0044] The external air conditioning pipes are generally made of copper. When the external air conditioning pipes are welded inside the intake pipe 200, the inner side of the intake pipe 200 is provided with a copper layer 220 for welding with the air conditioning pipes. When the external air conditioning pipes are welded around the outside of the intake pipe 200, the outer side of the intake pipe 200 is provided with a copper layer 220 for welding with the air conditioning pipes.

[0045] In some embodiments, the seat ring 210 has a first end face 211 and a second end face 212 along the axial direction of the air intake pipe 200. The first end face 211 is located inside the port 110, and the outer diameter of the first end face 211 is smaller than the inner diameter of the port 110, while the inner diameter of the port 110 is smaller than the outer diameter of the second end face 212.

[0046] The seat ring 210 is roughly frustum shaped, and the inner diameter of the port 110 is between the outer diameter of the first end face 211 and the outer diameter of the second end face 212.

[0047] When the seat ring 210 abuts against the port 110, the first end face 211 of the seat ring 210 can extend into the port 110, and the second end face 212 of the seat ring 210 is located outside the port 110, thereby facilitating the welding of the seat ring 210 to the port 110 by resistance welding.

[0048] In an optional embodiment, the outer diameter D1 of the first end face 211 is 10mm to 14mm, the inner diameter D0 of the port 110 is 11mm to 15mm, and the outer diameter D2 of the second end face 212 is 16mm to 20mm.

[0049] For example, the outer diameter D1 of the first end face 211 is 10 mm, the inner diameter D0 of the port 110 is 11 mm, and the outer diameter D2 of the second end face 212 is 16 mm; or, the outer diameter D1 of the first end face 211 is 12 mm, the inner diameter D0 of the port 110 is 13 mm, and the outer diameter D2 of the second end face 212 is 18 mm; or, the outer diameter D1 of the first end face 211 is 14 mm, the inner diameter D0 of the port 110 is 15 mm, and the outer diameter D2 of the second end face 212 is 20 mm.

[0050] It is understandable that the outer diameter D1 of the first end face 211, the inner diameter D0 of the port 110, and the outer diameter D2 of the second end face 212 can be determined according to the actual working conditions, as long as it is convenient to weld the seat ring 210 to the port 110 by resistance welding.

[0051] In some embodiments, the seat ring 210 is provided with a first conical surface 213, which is connected between the first end face 211 and the second end face 212, and abuts against the port 110.

[0052] By setting a first tapered surface 213 between the first end face 211 and the second end face 212, and having the first tapered surface 213 abut against the port 110, the welding efficiency is improved during the process of welding the seat ring 210 to the port 110 by resistance welding, as the first tapered surface 213 abuts against the port 110.

[0053] In some embodiments, the reservoir body 100 has a second conical surface 120 at the port 110, and the first conical surface 213 abuts against the second conical surface 120.

[0054] The second conical surface 120 and the first conical surface 213 have the same inclination angle. Before welding the seat ring 210 to the port 110, the seat ring 210 is placed at the port 110. Since the second conical surface 120 and the first conical surface 213 have the same inclination angle, when the first conical surface 213 abuts against the second conical surface 120, the central axis of the air inlet pipe 200 coincides with the central axis of the liquid reservoir cylinder 100, so that the air inlet pipe 200 can be aligned without other positioning devices, thus improving the work efficiency.

[0055] Furthermore, the difference T between the end diameters of the second conical surface 120 along its own axis is less than or equal to 1 mm, and the wall thickness of the reservoir cylinder 100 is 1.5 mm to 2.5 mm.

[0056] The diameter of the end face of the second conical surface 120 along its own axis is the inner diameter D0 of the port 110, and the diameter of the end face of the second conical surface 120 along its own axis is the diameter of the end face of the second conical surface 120 near the outer side of the port 110. By limiting the difference T between the diameters of the two ends of the second conical surface 120 along its own axis to be less than or equal to 1mm, and the wall thickness of the reservoir cylinder 100 is about 2mm, the proportion of the radial dimension of the second conical surface 120 along the port 110 to the dimension of the reservoir cylinder 100 is within a reasonable range, and it is not likely to affect the resistance welding effect.

[0057] The technical effects of the liquid reservoir provided by the embodiments of this application include at least the following: the seat ring 210 is welded to the port 110 of the liquid reservoir body 100 by resistance welding, which not only improves the automation level of the production process, but also significantly improves the welding quality and reduces the risk of compressor leakage caused by poor welding; the air inlet pipe 200 and the seat ring 210 are integrally die-cast, which significantly improves the structural strength and stability; when the first conical surface 213 abuts against the second conical surface 120, the central axis of the air inlet pipe 200 coincides with the central axis of the liquid reservoir body 100, so that the air inlet pipe 200 can be aligned without other positioning devices, thereby improving the work efficiency.

[0058] Embodiments of this application also provide a compressor, including the liquid receiver described above. The technical effects of this compressor and the liquid receiver described above are largely the same, and will not be repeated here.

[0059] In summary, the embodiments of this application provide a liquid receiver and a compressor. The liquid receiver includes a liquid receiver cylinder 100 and an air inlet pipe 200. The liquid receiver cylinder 100 has a port 110, and the outer side of the air inlet pipe 200 is integrally formed with a seat ring 210. The seat ring 210 is welded to the port 110 of the liquid receiver cylinder 100 by resistance welding, which significantly improves the welding quality and reduces the risk of compressor leakage due to poor welding.

[0060] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A liquid reservoir, characterized in that, The device includes a reservoir body (100) and an air inlet pipe (200). The reservoir body (100) has a port (110). The outer side of the air inlet pipe (200) is integrally formed with a seat ring (210). The seat ring (210) extends at least partially into the port (110). The seat ring (210) is welded to the port (110) by resistance welding.

2. The liquid reservoir according to claim 1, characterized in that, The air intake pipe (200) is made of iron or stainless steel.

3. The liquid reservoir according to claim 2, characterized in that, The inner side or the outer side of the air intake pipe (200) is provided with a copper layer (220), which is used for welding with external air conditioning pipes.

4. The liquid reservoir according to claim 1, characterized in that, The seat ring (210) has a first end face (211) and a second end face (212) along the axial direction of the air intake pipe (200). The first end face (211) is located inside the port (110). The outer diameter of the first end face (211) is smaller than the inner diameter of the port (110), and the inner diameter of the port (110) is smaller than the outer diameter of the second end face (212).

5. The liquid reservoir according to claim 4, characterized in that, The outer diameter of the first end face (211) is 10mm to 14mm, the inner diameter of the port (110) is 11mm to 15mm, and the outer diameter of the second end face (212) is 16mm to 20mm.

6. The liquid reservoir according to claim 4, characterized in that, The seat ring (210) is provided with a first conical surface (213), which is connected between the first end face (211) and the second end face (212), and the first conical surface (213) abuts against the port (110).

7. The liquid reservoir according to claim 6, characterized in that, The reservoir body (100) has a second conical surface (120) at the port (110), and the first conical surface (213) abuts against the second conical surface (120).

8. The liquid reservoir according to claim 7, characterized in that, The difference in diameter between the two ends of the second conical surface (120) along its own axis is less than or equal to 1 mm, and the wall thickness of the reservoir cylinder (100) is 1.5 mm to 2.5 mm.

9. The liquid reservoir according to claim 1, characterized in that, The air intake pipe (200) and the seat ring (210) are integrally die-cast.

10. A compressor, characterized in that, Includes the liquid reservoir as described in any one of claims 1-9.

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