Liquid storage and air conditioning systems

Abstract

A liquid storage tank (100) and an air conditioning system (300), wherein the liquid storage tank (100) includes a cylindrical body (10) having an opening (11) and a plurality of exhaust pipes (30), the liquid storage tank (100) further includes a fixed seat (20), the fixed seat (20) is at least partially inserted into the opening (11) and fixedly connected to the inner wall of the opening (11), a plurality of through holes (21) are opened in the fixed seat (20), the plurality of exhaust pipes (30) each have one through hole (21), one end of the exhaust pipes (30) extends from the corresponding through hole (21) into the cylindrical body (10) and communicates with the inside of the cylindrical body (10), and the outer wall of the exhaust pipes (30) is fixedly connected to the inner wall of the through hole (21).

Description

Technical Field

[0001] Related Applications This application claims priority based on a Chinese patent application filed with the Chinese Patent Office on November 25, 2021, with an application number of 202122959311.9 and an invention title of "Liquid Storage Device", and incorporates its entire content herein by reference.

[0002] This application relates to the technical field of cooling equipment, and particularly to liquid storage devices and air conditioning systems.

Background Art

[0003] Currently, in a double-tube liquid storage device formed by spinning, a lid member for assembling an exhaust pipe is formed by a pressing process in the liquid storage device, and two mouths for welding the exhaust pipe are provided at the central part of the lid member. However, during assembly, it is difficult to assemble the exhaust pipe, and problems such as unstable assembly of the exhaust pipe are likely to occur. In addition, the seismic resistance of the liquid storage device during use is poor, and it is difficult to ensure the sealing performance.

Summary of the Invention

Problems to be Solved by the Invention

[0004] According to various embodiments of this application, a liquid storage device is provided.

Means for Solving the Problems

[0005] This application provides a liquid storage device including a cylinder body with an opening at the cylinder mouth and a plurality of exhaust pipes. The liquid storage device further includes a fixing seat, which is at least partially inserted into the cylinder mouth and fixedly connected to the inner wall of the cylinder mouth. A plurality of through holes are opened in the fixing seat, and each of the plurality of exhaust pipes has one of the through holes. One end of the exhaust pipe extends into the cylinder body from the corresponding through hole and communicates with the inside of the cylinder body, and the outer wall of the exhaust pipe is fixedly connected to the inner wall of the through hole.

[0006] In one embodiment, the fixing seat is welded to the inner wall of the cylinder mouth.

[0007] In one embodiment, the fixed seat and the cylindrical body are welded together by one or more welding methods, including resistance welding, gas shielded arc welding, and brazing.

[0008] In one embodiment, the exhaust pipe includes a steel pipe segment and a copper pipe segment, the steel pipe segment being located inside the cylindrical body, the steel pipe segment being partially fitted into the copper pipe segment, and the end of the copper pipe segment, away from the steel pipe segment, extending outside the cylindrical body.

[0009] In one embodiment, the steel pipe segment includes an enlarged portion, the inner diameter of which is larger than the outer diameter of the copper pipe segment, and the enlarged portion is fitted onto the outside of the copper pipe segment.

[0010] In one embodiment, the fitting portion between the steel pipe segment and the copper pipe segment is located within the fixing seat.

[0011] In one embodiment, the steel pipe segment is inserted into the through hole by a press-fitting process, and the steel pipe segment and the through hole are in an interference fit.

[0012] In one embodiment, the outer wall of the copper pipe segment and the inner wall of the steel pipe segment are fitted together with a gap.

[0013] In one embodiment, the steel pipe segment and the fixed seat are welded by a multi-point in-furnace brazing process, and / or the copper pipe segment and the fixed seat are welded by a flame brazing process.

[0014] In one embodiment, the fixed seat is provided with a locking portion, which is located on the outside of the cylindrical body and is used for locking cooperation with the cylindrical body.

[0015] In one embodiment, the outer diameter of the end of the fixed seat extending into the cylindrical body is smaller than the inner diameter of the cylindrical opening, and a gap is provided between the outer wall of the end of the fixed seat extending into the cylindrical body and the inner wall of the cylindrical body.

[0016] In one embodiment, the reservoir further includes an intake pipe and a filter assembly, the intake pipe having one end extending into the cylindrical body and positioned opposite the exhaust pipe, and the filter assembly being located inside the cylindrical body and between the intake pipe and the exhaust pipe.

[0017] This application provides an air conditioning system comprising a compressor and a liquid reservoir, wherein the compressor is connected to the liquid reservoir.

[0018] Details of one or more embodiments of the present application are shown in the accompanying drawings and description below. Other features, purposes, and advantages of the present application will become apparent from the specification, accompanying drawings, and claims.

[0019] To better describe and illustrate these embodiments and / or examples of the inventions disclosed herein, one or more of the accompanying drawings may be referenced. Any additional details or examples used to illustrate the accompanying drawings should not be considered to limit the scope of any of the disclosed inventions, the embodiments and / or examples described herein, or any of the best embodiments of these inventions as currently understood. [Brief explanation of the drawing]

[0020] [Figure 1] This is a schematic diagram of the configuration of a liquid storage device according to one or more embodiments. [Figure 2] This is a magnified view of area A in Figure 1. [Figure 3] This is a magnified view of area B in Figure 1. [Figure 4] This is a schematic diagram illustrating the configuration of an air conditioning system according to one or more embodiments. [Modes for carrying out the invention]

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. It is clear that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0022] In addition, when an assembly is said to be "installed on" another assembly, it may be directly installed on the other assembly, or there may be an intervening assembly. When an assembly is considered to be "arranged on" another assembly, it may be directly arranged on the other assembly, or there may be an intervening assembly existing simultaneously. When an assembly is considered to be "fixed to" another assembly, it may be directly fixed to the other assembly, or there may be an intervening assembly existing simultaneously.

[0023] Unless otherwise defined, all technical terms and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the art. The terms used in the specification of the present application are only used for the purpose of explaining specific embodiments and are not intended to limit the present application. The term "or / and" used in the present application includes any and all combinations of one or more of the related listed items.

[0024] In the field of cooling and air conditioning, a liquid storage device is an auxiliary element of a compressor, used for storing liquid-phase refrigerant, and when the compressor operates in an unsteady state, it avoids liquid hammer caused by the inflow of liquid-phase refrigerant into the compressor and effectively prevents damage to the compressor pump.

[0025] The present invention provides a liquid reservoir 100, which, referring to Figures 1 to 3, includes a cylindrical body 10 with a cylindrical opening 11 and a plurality of exhaust pipes 30. The liquid reservoir 100 further includes a fixed seat 20 which is at least partially inserted into the cylindrical opening 11 and fixedly connected to the inner wall of the cylindrical opening 11, and the fixed seat 20 has a plurality of through holes 21, with each of the plurality of exhaust pipes 30 having one through hole 21. One end of each exhaust pipe 30 extends into the cylindrical body 10 from a corresponding through hole 21 and communicates with the interior of the cylindrical body 10, and the outer wall of the exhaust pipe 30 is fixedly connected to the inner wall of the through hole 21.

[0026] In this invention, a through-hole 21 is provided in the fixed seat 20, and the exhaust pipe 30 extends into the cylindrical body 10 through the through-hole 21. The wall of the through-hole 21 restricts the position of multiple exhaust pipes 30, ensuring a stable connection between the exhaust pipe 30 and the cylindrical body 10, thereby preventing displacement, wobbling, or collision of the exhaust pipe 30 with the inner wall of the cylindrical body 10. Furthermore, the fixed seat 20 can also seal the opening 11 of the cylindrical body, preventing leakage of liquid inside the cylindrical body 10 and improving the sealing performance of the liquid reservoir 100.

[0027] In one embodiment, the cylinder opening 11 is formed by spinning the cylindrical body 10, and the fixing seat 20 is welded to the inner wall of the cylinder opening 11. The welding ensures a sealed connection of the fixing seat 20 to the inner wall of the cylinder opening 11. Since the fixing seat 20 has a certain thickness, the welding strength between the fixing seat 20 and the cylinder opening 11 is guaranteed, improving the sealing performance of the liquid reservoir 100 and preventing refrigerant leakage. Of course, in other embodiments, the fixing connection between the fixing seat 20 and the cylindrical body 10 is not limited to the method described above; for example, the fixing seat 20 and the cylindrical body 10 may be connected by adhesive bonding.

[0028] In some embodiments, the fixed seat 20 and the cylindrical body 10 are welded together by one or more of the following welding methods: resistance welding, gas shielded arc welding, and brazing. Resistance welding has relatively high welding efficiency because the heat is concentrated and the heating time is short. Brazing allows for sufficient filling of the gap between the fixed seat 20 and the inner wall of the cylindrical mouth 11 with liquid-phase solder, ensuring a good seal between the fixed seat 20 and the cylindrical body 10. Gas shielded arc welding has a wide range of applications and can weld any metal. Furthermore, gas shielded arc welding is easy to work with because it produces no slag and the molten pool is easily visible. All three of the above welding methods have the characteristic of producing little welding deformation, effectively preventing welding deformation of the fixed seat 20 and the cylindrical body 10. Of course, other welding means may be used in other embodiments, and are not limited here.

[0029] Referring to Figures 1 and 2, the fixed seat 20 is provided with a locking portion 22, which is located on the outside of the cylindrical body 10 and is used in cooperation with the cylindrical body 10 to lock into place. This prevents components inside the cylindrical body 10 from falling out, improves the operational stability of the liquid reservoir 100, prevents the fixed seat 20 from falling into the cylindrical body 10, and the locking portion 22 also works in cooperation with the cylindrical body 10 to prevent welding fluid from entering the inside of the cylindrical body 10, thereby preventing the welding fluid from affecting the components inside the cylindrical body 10.

[0030] Here, the locking portion 22 is located on the outside of the cylindrical body 10, that is, the locking portion 22 protrudes from the edge of the cylinder opening 11, thus avoiding collision with the cylinder opening 11 during the installation process of the liquid storage container 100, and thus playing a role in protecting the cylinder opening 11 well.

[0031] Referring to Figure 2, the outer diameter of the end of the fixing seat 20 extending into the cylindrical body 10 is smaller than the inner diameter of the cylinder opening 11, and a gap is provided between the outer wall of the end of the fixing seat 20 extending into the cylindrical body 10 and the inner wall of the cylindrical body 10. Therefore, it is advantageous to insert and install the fixing seat 20 into the cylindrical body 10, improving installation efficiency. The outer diameter of the end of the fixing seat 20 extending into the cylindrical body 10 is relatively small, and it can be adapted to different inner diameters corresponding to different types of cylinder openings 11, resulting in a wide range of applications.

[0032] In some embodiments, the portion of the fixing seat 20 between the end of the fixing seat 20 extending into the cylindrical body 10 and the locking portion 22 gradually increases in size so that a mounting slope 23 is formed. That is, the outer diameter of the fixing seat 20 gradually increases along the direction in which the fixing seat 20 moves away from the cylinder opening 11. During assembly, the fixing seat 20 is press-fitted into the cylinder opening 11 until the mounting slope 23 is in close contact with the cylinder opening 11, improving the sealing performance of the liquid reservoir 100 and preventing refrigerant leakage. At the same time, the mounting slope 23 allows for the positioning of the fixing seat 20 and prevents the fixing seat 20 from being excessively press-fitted into the cylindrical body 10.

[0033] Referring to Figure 2, the exhaust pipe 30 includes a steel pipe segment 31 and a copper pipe segment 32. The steel pipe segment 31 is located inside the cylindrical body 10 and is partially fitted into the copper pipe segment 32. The end of the copper pipe segment 32 that is separated from the steel pipe segment 31 extends outside the cylindrical body 10. Because the price of copper is relatively high, the steel pipe segment 31 is used to reduce production costs and lower the cost of the liquid reservoir 100. In the field of cooling technology, air conditioning pipelines are generally made of copper pipes, so by installing it in this way, the copper pipe segment 32 is welded to the air conditioning pipeline. Since it is the same material, the welding difficulty is lower and the assembly efficiency is increased. Continuing to refer to Figure 2, the steel pipe segment 31 includes an enlarged diameter section 311. The inner diameter of the enlarged diameter section 311 is larger than the outer diameter of the copper pipe segment, and the enlarged diameter section 311 is fitted to the outside of the copper pipe segment 32. By providing the enlarged diameter portion 311, one end of the copper pipe segment 32 extends into the enlarged diameter portion 311 and connects with the steel pipe segment 31 during assembly, reducing the difficulty of assembling the copper pipe segment 32. Furthermore, one end of the copper pipe segment 32 abuts against the inclined surface 312 of the enlarged diameter portion 311, positioning the copper pipe segment 32 and preventing it from extending excessively into the steel pipe segment 31. In addition, the copper pipe segment 32 adheres tightly to the inclined surface 312, improving the sealing performance of the connection between the copper pipe segment 32 and the steel pipe segment 31, thereby preventing refrigerant leakage and preventing external solutions from entering the exhaust pipe 30 through the enlarged diameter portion 311 of the steel pipe segment 31.

[0034] In some embodiments, referring to Figure 2, the fitting portion between the steel pipe segment 31 and the copper pipe segment 32 is located within the fixing seat 20. In this way, the stability of the connection between the steel pipe segment 31 and the copper pipe segment 32 is enhanced by utilizing the fixing and position-restricting effect of the fixing seat 20 on the steel pipe segment 31 and the copper pipe segment 32. Of course, in other embodiments, the fitting portion between the steel pipe segment 31 and the copper pipe segment 32 may be located on the outside or inside of the cylindrical body 10.

[0035] In one embodiment, the steel pipe segment 31 is inserted into the through hole 21 of the fixed seat 20 by a press-fitting process, and the steel pipe segment 31 and the through hole 21 are in an interference fit. During assembly, the steel pipe segment 31 is first press-fitted into the fixed seat 20, establishing a connection between the steel pipe segment 31 and the fixed seat 20, and the two are in an interference fit, preventing loosening of the steel pipe segment 31 and facilitating the subsequent assembly and connection of the copper pipe segment 32. Of course, in other embodiments, the steel pipe segment 31 can also be directly connected to the fixed seat 20 by welding.

[0036] Referring to Figure 2, the outer wall of the copper pipe segment 32 and the inner wall of the steel pipe segment 31 are fitted together with a gap. Specifically, the outer wall of the copper pipe segment 32 and the inner wall of the enlarged diameter portion 311 of the steel pipe segment 31 are fitted together with a gap, ensuring that solder flows sufficiently between the copper pipe segment 32 and the steel pipe segment 31 during welding, thereby ensuring a strong weld between the copper pipe segment 32 and the steel pipe segment 31 and preventing refrigerant leakage.

[0037] In one embodiment, the steel pipe segment 31 and the fixed seat 20 are welded by a multi-point simultaneous furnace brazing process, i.e., welding is performed together with other locations to be welded, thereby reducing the number of welding steps. Alternatively, the copper pipe segment 32 and the fixed seat 20 may be welded by a flame brazing process. Of course, in other embodiments, the welding method between the steel pipe segment 31, the copper pipe segment 32 and the fixed seat 20 is not limited.

[0038] Referring to Figures 1 and 3, the reservoir 100 further includes an intake pipe 40 and a filter assembly 50, the intake pipe 40 having one end extending into the cylindrical body 10 and positioned opposite the exhaust pipe 30. The filter assembly 50 is located inside the cylindrical body 10 and between the intake pipe 40 and the exhaust pipe 30, and is used to prevent liquid phase refrigerant and impurities from directly entering the intake pipe 40 and affecting the performance of the reservoir 100.

[0039] Here, the filter assembly 50 is welded to the inside of the cylindrical body 10.

[0040] Referring to Figure 4, the present application further provides an air conditioning system 300 comprising a compressor 200 and the liquid reservoir 100 described in any one of the above embodiments, wherein the compressor 200 is connected to the liquid reservoir 100, a gas-liquid mixed fluid is separated into gas-liquid in the liquid reservoir 100, and the separated gas enters the compressor 200 and is compressed. By applying the liquid reservoir 100, it is possible to effectively prevent liquid-phase refrigerant from flowing into the compressor 200 and causing liquid hammer, which would damage the pump of the compressor 200, and to ensure the stable operation of the compressor 200.

[0041] It should be explained that the use of words such as "first," "second," etc., to specify parts is simply to easily distinguish corresponding parts, and unless otherwise stated, the aforementioned words do not have any special meaning and should not be understood as limiting the scope of protection of this application.

[0042] Any combination of the technical features of the embodiments described above is possible, and for the sake of brevity, not all possible combinations of the technical features of the embodiments described above have been explained. However, as long as these combinations of technical features are inconsistent, they should be considered to be within the scope of this specification.

[0043] Those skilled in the art should recognize that the above embodiments are used solely to illustrate the present application and are not intended to limit it, and that appropriate modifications and variations of the above embodiments, insofar as they remain within the substantial spirit of the application, fall within the scope of the protection claimed by the application. [Explanation of symbols]

[0044] 100 Reservoir 10 Cylinder 11 Tsutsuguchi 20 Fixed seat 21 Through hole 22 Locking part 23. Mounting slope 30 Exhaust pipe 31 Steel pipe segments 311 Expanded diameter part 312 Slope 32 copper pipe segments 40 Intake pipe 50 filter assemblies 200 Compressor 300 Air Conditioning System

Claims

1. A liquid storage device comprising a cylindrical body with an opening and multiple exhaust pipes, The liquid reservoir further includes a fixed seat, the fixed seat having a mounting slope, which is at least partially inserted into the cylinder opening until the mounting slope is in close contact with the cylinder opening and is fixedly connected to the inner wall of the cylinder opening, the fixed seat having a plurality of through holes, each of the plurality of exhaust pipes having one of the through holes, one end of each exhaust pipe extending into the cylinder body from the corresponding through hole and communicating with the inside of the cylinder body, the outer wall of the exhaust pipe and the inner wall of the through hole are fixedly connected, the exhaust pipe is made of steel pipe segments and copper pipe segments A liquid storage container comprising a steel pipe segment and a copper pipe segment, wherein the steel pipe segment is located inside the cylindrical body, the steel pipe segment is partially fitted into the copper pipe segment, the end of the copper pipe segment away from the steel pipe segment extends outside the cylindrical body, the fitting portion between the steel pipe segment and the copper pipe segment is located inside the fixed seat, the outer diameter of the end of the fixed seat extending inside the cylindrical body is smaller than the inner diameter of the cylindrical opening, and a gap is provided between the outer wall of the end of the fixed seat extending inside the cylindrical body and the inner wall of the cylindrical body.

2. The liquid storage device according to claim 1, wherein the fixed seat is welded to the inner wall of the cylindrical opening.

3. The liquid storage device according to claim 2, wherein the fixed base and the cylindrical body are welded together by one or more welding methods, including resistance welding, gas shielded arc welding, and brazing.

4. The liquid storage device according to claim 1, wherein the steel pipe segment includes an enlarged diameter portion, the inner diameter of the enlarged diameter portion is larger than the outer diameter of the copper pipe segment, and the enlarged diameter portion is fitted to the outside of the copper pipe segment.

5. The liquid storage device according to claim 1, wherein the steel pipe segment is inserted into the through hole by a press-fitting process, and the steel pipe segment and the through hole are in an interference fit.

6. The liquid storage device according to claim 1, wherein the outer wall of the copper pipe segment and the inner wall of the steel pipe segment are fitted together with a gap.

7. The liquid storage device according to claim 1, wherein the steel pipe segment and the fixed seat are welded by a multi-point simultaneous furnace brazing process, and / or the copper pipe segment and the fixed seat are welded by a flame brazing process.

8. The liquid storage device according to claim 1, wherein the fixed base is provided with a locking portion, the locking portion is located on the outside of the cylindrical body and is used for locking cooperation with the cylindrical body.

9. The liquid reservoir according to claim 1, further comprising an intake pipe and a filter assembly, wherein one end of the intake pipe extends into the cylindrical body and is positioned opposite to the exhaust pipe, and the filter assembly is positioned inside the cylindrical body and between the intake pipe and the exhaust pipe.

10. An air conditioning system comprising a compressor and a liquid reservoir according to any one of claims 1 to 9, wherein the compressor is connected to the liquid reservoir.

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