Reservoir production process and reservoir

Abstract

Disclosed in the present application are a reservoir production process and a reservoir. Compared with conventional machining processes for two-section and three-section reservoirs, the production process is simpler, and the step of furnace brazing for structural splicing is also omitted, thereby saving a large amount of energy and not requiring the participation of ammonia, and greatly reducing the safety risk and emission pollution risk. In addition, the reservoir structure in the present application eliminates the impact of the "neck" created by a conventional spinning process on the containment volume of the reservoir, and improves the silencing performance while expanding the containment volume of the reservoir. By means of the integral formation of welding bosses on a gas-intake straight pipe and a gas output elbow, the mounting and positioning of the gas-intake straight pipe and the gas output elbow are facilitated, and it is also not necessary to use additional copper as solder for welding, thus reducing the machining cost.

Description

Liquid reservoir production process and liquid reservoir

[0001] The present application claims priority to the Chinese patent application No. 202410731916.8, filed on June 6, 2024, with the title of “Solder-free liquid reservoir production process and liquid reservoir”, the Chinese patent application No. 202421296469.X, filed on June 6, 2024, with the title of “Solder-free processed liquid reservoir”, the Chinese patent application No. 202422217554.9, filed on September 10, 2024, with the title of “Liquid reservoir air pipe”, and the Chinese patent application No. 202422218016.1, filed on September 10, 2024, with the title of “Liquid reservoir elbow structure”, all of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of liquid reservoirs, in particular to a liquid reservoir production process and a liquid reservoir. BACKGROUND

[0003] The liquid reservoir is an important component of the compressor, which plays a role in storage, gas-liquid separation, filtration, sound attenuation and refrigerant buffering. The existing liquid reservoirs are mainly divided into three types: one-piece spinning type, two-segment type and three-segment type.

[0004] The traditional manufacturing process of the three-segment type liquid reservoir includes: part stamping and processing-cleaning-pressing-furnace brazing-flame brazing-airtight water pressure test-inspection packaging. With this manufacturing process, the precision requirement of the early stage part stamping and processing is relatively high; there are more welding points in the welding process of the three-segment structure, the leakage probability is large, the welding process is complex, and the furnace brazing and flame brazing consume a large amount of energy and a large amount of ammonia gas and propane. Ammonia gas, as a toxic gas, has a high safety risk and environmental pollution risk in the process of storage, use and subsequent discharge.

[0005] The traditional manufacturing process of the two-segment type liquid reservoir includes: part stretching and processing-cleaning-pressing-furnace brazing-flame brazing-airtight water pressure test-inspection packaging. With this manufacturing process, the material cost is high and the processing efficiency is low in the material stretching and processing process in the early stage; at the same time, the welding method in the traditional manufacturing process of the two-segment type liquid reservoir is also furnace brazing and flame brazing, which also has the disadvantages of high energy consumption, high safety risk of ammonia gas / propane storage and use, and high waste gas emission pollution risk.

[0006] The traditional manufacturing process of the integrated spinning liquid accumulator includes: steel pipe cutting-washing-first end spinning forming-netting and grooving-second end spinning forming-iron filings absorption-straight pipe / bent pipe pressing-in-flame brazing-airtight water pressure test-inspection and packaging. Compared with two-section and three-section liquid accumulators, the manufacturing cost is lower, the furnace brazing step is saved, and the energy consumption is relatively saved and the amount of ammonia used is reduced. However, the flame brazing step still consumes a large amount of energy and propane, and it is found in actual use that:

[0007] Under the condition of equal length in the axial direction, compared with two-section and three-section liquid accumulators, the existing integrated spinning liquid accumulator is affected by the "neck" structure generated by the spinning process, resulting in small liquid storage volume at the gas outlet end, low liquid storage capacity, and at the same time, due to the small volume, the problem of "liquid hammer" of the compressor caused by the coolant still in liquid state entering the compressor when working with the compressor is caused, and the coolant stored inside and the internal structure are easily excited, resulting in poor quietness.

[0008] In addition, the existing spinning liquid accumulator uses a straight pipe for gas inlet and a bent pipe for gas outlet, which is mostly a smooth pipe with a smooth outer wall. During processing and assembly, it is difficult to position and maintain good concentricity with the cylinder body. In the welding process, additional welding material is required, resulting in low production efficiency, high energy consumption and high production cost. Therefore, in the existing technology, welding bosses / flanges and other structures are provided to facilitate the assembly of the gas outlet bent pipe, the gas inlet straight pipe and the cylinder body. Therefore, in the production process of the existing gas outlet bent pipe and gas inlet straight pipe, one end of the straight pipe part of the gas outlet bent pipe usually undergoes two welds between the bent pipe part and the welding boss / welding flange structure, and the end of the pipe body part of the gas inlet straight pipe usually undergoes two welds between the gas inlet port and the welding boss / welding flange structure. However, due to the proximity of the two welding points, the first welding point is easily damaged or directly broken during the second welding, thereby damaging the structure of the gas outlet bent pipe and the gas inlet straight pipe and affecting the normal use of the liquid accumulator.

[0009] Therefore, the existing technology still has certain defects. SUMMARY

[0010] The present application provides a liquid accumulator production process and a liquid accumulator to solve at least one of the above technical problems.

[0011] The technical scheme adopted by the present application is as follows:

[0012] In a first aspect, the present application provides a liquid accumulator production process, comprising the following steps:

[0013] S1, preparation: including cylinder blank, gas inlet straight pipe, gas outlet elbow, filter screen and middle partition plate;

[0014] S2, gas outlet end processing: using spinning process and stamping shaping process to process one end of the cylinder blank to form a gas outlet end with arc-shaped edge and flat end face;

[0015] S3, install gas outlet elbow: install the gas outlet elbow at the gas outlet end by resistance welding process;

[0016] S4, install filter screen and middle partition plate: send the filter screen and the middle partition plate into the cylinder blank from the unprocessed end of the cylinder blank, groove the cylinder blank by spinning groove process, and fix the filter screen and the middle partition plate in the cylinder blank;

[0017] S5, gas inlet end processing: process the other end of the cylinder blank to form a gas inlet end by spinning process;

[0018] S6, install gas inlet straight pipe: install the gas inlet straight pipe at the gas inlet end by resistance welding process;

[0019] S7, inspection and packaging.

[0020] In the above scheme, the cylinder of the liquid accumulator is integrally formed by spinning and stamping shaping processing, which is simpler than the traditional two-section and three-section liquid accumulator processing technology and saves the structural splicing furnace brazing step, saves a lot of energy and does not need ammonia, greatly reduces the safety risk and emission pollution risk, and eliminates the influence of the "neck" generated by the traditional spinning process on the volume of the liquid accumulator through stamping shaping, which is beneficial to expand the volume of the liquid accumulator while improving the mute performance. In addition, the resistance welding is used for installing the gas inlet straight pipe and the gas outlet elbow in the above scheme, which can save energy compared with the traditional flame brazing process, and also saves propane, which reduces the safety risk and emission pollution risk.

[0021] As a preferred embodiment of the present application, S2 specifically includes the following steps:

[0022] a. using a spinning machine to spin the one end of the cylinder blank to make the outer contour of the one end of the cylinder blank spherical to form an initial gas outlet end;

[0023] b. flattening the bottom of the initial gas outlet end by the upper die provided on the spinning machine pressure spindle and the bottom die provided opposite to the axial pressure spindle, and stamping out the gas outlet elbow mounting hole for mounting the gas outlet elbow to form the gas outlet end.

[0024] Since the spinning machine has axial feeding capability, the spinning forming and stamping shaping of the gas outlet end of the cylinder can be simultaneously and efficiently completed by using the above scheme, compared with twice separate processing, which can not only improve the processing efficiency but also avoid the processing error caused by secondary positioning and clamping, and improve the processing precision and processing quality.

[0025] As a preferred embodiment of the present application, S5 specifically comprises the following steps: using a vertical spinning machine to spin the unprocessed end of the cylinder blank to form an air inlet end with an air inlet straight pipe mounting hole.

[0026] Preferably, the above-mentioned liquid accumulator production process further comprises a part cleaning step, and the part cleaning step at least comprises:

[0027] C1, cleaning the inside of the cylinder blank after S2 is completed; and / or,

[0028] C2, cleaning the inside of the cylinder blank after S3 is completed; and / or,

[0029] C3, cleaning the inside of the cylinder blank after S4 is completed; and / or,

[0030] C4, cleaning the inside of the cylinder blank after S5 is completed.

[0031] By setting the cleaning operation, the generation and residue of foreign matter in the cylinder during the processing process are effectively avoided, and the compressor motor is prevented from being stuck due to the foreign matter problem in the liquid accumulator.

[0032] In a second aspect, the present application also provides a liquid accumulator made by using the above-mentioned liquid accumulator production process, which comprises a cylinder, the cylinder comprises a spinning air inlet end, a straight cylinder segment and a shaped air outlet end, the spinning air inlet end comprises a neck portion and a conical portion connected with each other, the shaped air outlet end comprises a flat portion and an arc-shaped portion connected with each other, two ends of the straight cylinder segment are connected with the conical portion and the arc-shaped portion respectively, and the arc-shaped portion protrudes towards the outside of the cylinder, further comprising an air inlet straight pipe and an air outlet elbow pipe; the neck portion is provided with an air inlet mounting hole, and the air inlet straight pipe is fixedly connected with the air inlet mounting hole; the flat portion is provided with an air outlet mounting hole, and the air outlet elbow pipe is fixedly connected with the air outlet mounting hole.

[0033] By adopting the above structure, the liquid reservoir in the application eliminates the influence of the "neck" on the liquid storage volume of the gas outlet end when the conventional spinning process is used to produce the existing "two-stage" and "three-stage" liquid reservoirs, so that the liquid storage volume of the shaped gas outlet end in the application is effectively improved compared with the liquid storage of the gas outlet end of the conventional spinning liquid reservoir, thereby reducing the probability of "liquid hammer" problem of the compressor and reducing the probability of exciting vibration of the internal structure of the liquid reservoir storing the cooling machine, thereby facilitating to improve the mute effect. At the same time, the liquid reservoir in the above scheme has simple structure and convenient processing, which is conducive to improving production efficiency and saving production cost.

[0034] As a preferred embodiment of the application, the gas outlet elbow pipe comprises a straight pipe part and an elbow pipe part, the straight pipe part comprises an integrally formed main body section and a first connecting section, the first connecting section is arranged at one end of the main body section and comprises a first welding part and a second welding part in communication with each other, a first welding site is arranged on the side of the first welding part away from the second welding part, the first welding site is used for welding connection with the elbow pipe part, an outer wall of the second welding part is formed with a first welding boss extending in a direction away from the first connecting section in a radial direction of the first connecting section, and an outer diameter of the first welding boss is greater than an outer diameter of the main body section, a second welding site is arranged on the side of the first welding boss away from the first welding part, and the second welding site is used for welding connection with the cylinder.

[0035] As a preferred embodiment of the application, the gas inlet straight pipe comprises a pipe body part and a transition part in communication in an axial direction, the transition part comprises a fourth connecting section and a fifth connecting section, the pipe body part comprises a fitting section matched with the fourth connecting section, at least a part of the fourth connecting section is sleeved outside the fitting section in an axial direction, an outer wall of the fitting section is provided with a first limiting part, and a port of the fourth connecting section is limitedly matched with the first limiting part; an end of the fourth connecting section is further provided with a third welding site used for welding connection with the fitting section, and an end of the fifth connecting section is provided with a fourth welding site used for welding connection with the cylinder.

[0036] In the above scheme, by integrally forming the first welding boss at the second welding portion, the secondary welding process between the first welding boss / welding flange and the straight pipe portion is directly saved compared with the prior art, the problem of the welding point between the straight pipe portion and the elbow pipe portion being damaged or broken is avoided from the root, the yield of the gas outlet elbow pipe production is greatly improved, the additional solder consumption is saved, and the production cost is reduced; by adopting the structure of the fourth connecting segment and the fifth connecting segment, the transition portion of the gas inlet straight pipe in the application has a relatively long axial length, and by arranging the third welding point and the fourth welding point at the end portions of the fourth connecting segment and the fifth connecting segment respectively, the distance between the third welding point and the fourth welding point in the application is greatly extended compared with the distance between the two welding points in the prior art, thereby effectively avoiding the problem of the welding point between the second welding boss and the copper pipe body being damaged or directly broken. At the same time, by arranging the first welding boss and the second welding boss, the positioning and assembly difficulty between the gas outlet straight pipe, the gas inlet straight pipe and the cylinder body is greatly reduced, which is beneficial to maintaining good concentricity between the gas inlet straight pipe and the straight pipe portion of the gas outlet elbow pipe and the cylinder body. In addition, by arranging the first welding boss and the second welding boss, the solderless welding between the straight pipe portion of the gas outlet elbow pipe and the gas outlet port of the cylinder body and between the gas inlet straight pipe and the gas inlet port of the cylinder body can be easily realized, further reducing the production cost.

[0037] As a preferred embodiment of the application, a filter screen and a partition plate are arranged inside the cylinder body; the filter screen is arranged at the side of the straight cylinder segment close to the spinning gas inlet end, and the partition plate is arranged at the middle of the straight cylinder segment.

[0038] As a preferred embodiment of the application, the partition plate is provided with a first limiting hole, the side of the filter screen facing the partition plate is provided with a second limiting hole, the first limiting hole, the second limiting hole, the gas inlet mounting hole, the gas outlet mounting hole and the axis of the straight cylinder segment coincide; the gas outlet elbow pipe is limitedly matched with the partition plate through the first limiting hole, and the end of the gas outlet elbow pipe inserted into the inside of the cylinder body is limitedly matched with the second limiting hole.

[0039] With this structure, the limiting cooperation of the second limiting step and the gas outlet mounting hole is beneficial to ensuring that the straight pipe portion of the gas outlet elbow pipe inserted into the inside of the cylinder body has a higher concentricity with the cylinder body; at the same time, the gas outlet elbow pipe, the partition plate and the filter screen mutually play a radial limiting effect, reducing the radial movement of the partition plate, the filter screen and the gas outlet elbow pipe during use, ensuring the stability of the installation of the partition plate and the filter screen, and also playing a role in shock absorption and noise reduction.

[0040] As a preferred embodiment of the present application, the straight cylinder section is provided with a first limiting protrusion and a second limiting protrusion protruding towards the inside of the straight cylinder section along the radial direction of the straight cylinder section; the first limiting protrusion is arranged on both sides of the filter screen along the axial direction of the straight cylinder section, and the second limiting protrusion is arranged on both sides of the partition plate along the axial direction of the straight cylinder section; the first limiting protrusion can limit the axial movement of the filter screen, and the second limiting protrusion can limit the axial movement of the partition plate.

[0041] With this arrangement, the filter screen and the partition plate can be axially limited in the entire circumferential range, which is conducive to ensuring the stability of the installation of the filter screen and the partition plate.

[0042] As a preferred embodiment of the present application, the first limiting protrusion and the second limiting protrusion are of an integral structure, and the first limiting protrusion and the second limiting protrusion are arranged completely around the circumference of the straight cylinder section; or the first limiting protrusion and / or the second limiting protrusion are of a split structure, including a plurality of protruding segments, and the plurality of protruding segments are arranged at intervals around the circumference of the straight cylinder section.

[0043] With this arrangement, the processing deformation of the side wall of the cylinder can be reduced while ensuring the limiting and fixing effect, and the structural strength of the side wall of the cylinder can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0044] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the descriptions thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0045] Fig. 1 is a flow chart of the production process of the solderless liquid reservoir in the present application;

[0046] Fig. 2 is a structural schematic view of an initial gas outlet end;

[0047] Fig. 3 is a structural schematic view of a gas outlet end;

[0048] Fig. 4 is a schematic view of the installation structure of a gas inlet elbow;

[0049] Fig. 5 is a schematic view of the installation structure of a partition plate and a filter screen;

[0050] Fig. 6 is a structural schematic view of a gas inlet end;

[0051] Fig. 7 is a schematic view of the installation structure of a gas inlet straight pipe;

[0052] Fig. 8 is a structural schematic view of a liquid reservoir in the present application;

[0053] Fig. 9 is a comparison diagram of the liquid storage volume of the liquid reservoir in the present application and a traditional spinning type liquid reservoir;

[0054] Fig. 10 is a schematic view of the structure of the outlet elbow in an example;

[0055] Fig. 11 is a schematic view of the structure of the straight pipe portion of the outlet elbow in an example;

[0056] Fig. 12 is a schematic view of the structure of the first connecting section in an example;

[0057] Fig. 13 is a schematic view of the structure of the elbow portion in the present application and the structure of the existing elbow portion;

[0058] Fig. 14 is a schematic view of the structure of the inlet straight pipe in Example 1;

[0059] Fig. 15 is a schematic view of the structure of the transition portion in Example 1;

[0060] Fig. 16 is a schematic view of the structure of the pipe body portion in Example 1;

[0061] Fig. 17 is a schematic view of the structure of the inlet straight pipe in Example 2;

[0062] Fig. 18 is a schematic view of the structure of the transition portion in Example 2;

[0063] Fig. 19 is a schematic view of the structure of the pipe body portion in Example 2;

[0064] Fig. 20 is a schematic view of the structure of the inlet straight pipe in another example;

[0065] Fig. 21 is a comparison of the lengths of the pipe body portions in Example 1, Example 2 and the existing pipe body portion under the condition that the total length of the inlet straight pipe is the same;

[0066] Fig. 22 is a projection of the first limiting protrusion or the second limiting protrusion in Example 1 on a radial cross-section;

[0067] Fig. 23 is a projection of the first limiting protrusion or the second limiting protrusion in Example 2 on the radial cross-section.

[0068] Parts and reference list: 1 cylinder, 11 shaping outlet end, 111 outlet installation hole, 112 flat part, 113 arc part, 12 rotary pressure inlet end, 121 inlet installation hole, 122 conical part, 123 neck, 13 straight cylinder segment, 131 first limiting protrusion, 132 second limiting protrusion, 133 protrusion section; 2 outlet elbow, 21 straight pipe part, 211 first connecting segment, 2111 first welding part, 21111 first welding position, 2112 second welding part, 21121 first welding boss, 21122 second welding position, 21123 second limiting step, 21124 welding guide part, 2113 first limiting step, 2114 matching guide part, 2115 transition arc surface, 212 main body segment; 22 elbow part, 221 bending part, 222 second connecting segment, 223 third connecting segment, 23 oil hole; 3 inlet straight pipe, 31 pipe body part, 311 matching segment, 3111 first limiting part, 312 main body segment, 32 transition part; 321 fourth connecting segment, 3211 third welding position, 3212 second limiting part, 3213 guide arc surface, 322 fifth connecting segment, 3221 second welding boss, 3222 fourth welding position, 3223 third limiting step, 32231 axial limiting part, 32232 axial limiting surface, 32233 radial limiting part, 32234 radial limiting surface, 32235 arc guide part; 4 filter screen, 41 second limiting hole; 5 middle partition, 51 first limiting hole; 6 copper elbow part of existing outlet elbow; 7 pipe body part of existing inlet straight pipe product. DETAILED DESCRIPTION

[0069] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0070] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment can be combined with each other without conflict.

[0071] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0072] In this application, unless specifically defined otherwise, the terms "mount", "connect", "connection", "fixed", and the like, should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, and can also be communication; can be direct connection, can also be indirect connection through intermediate medium, can be internal communication of two elements or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0073] In this application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0074] In a first aspect, with reference to FIG. 1, the application first discloses a liquid accumulator production process, which comprises the following steps:

[0075] S1, preparation: including cylinder blank, gas inlet straight pipe 3, gas outlet elbow pipe 2, filter screen 4 and middle partition plate 5;

[0076] S2, gas outlet end processing: adopting spinning process and stamping shaping process to process one end of the cylinder blank to form a gas outlet end with arc-shaped edge and flat end face; specifically comprising:

[0077] a. using a spinning machine to spin one end of the cylinder blank to make the outer contour of one end of the cylinder blank spherical to form an initial gas outlet end;

[0078] b. flattening the bottom of the initial gas outlet end by the upper die provided on the pressure spindle of the spinning machine and the bottom die provided opposite to the axial pressure spindle, and stamping out the gas outlet elbow pipe 2 mounting hole for mounting the gas outlet elbow pipe 2, to form the gas outlet end

[0079] S3, mounting the gas outlet elbow pipe 2: mounting the gas outlet elbow pipe 2 on the gas outlet end by resistance welding process;

[0080] S4, mounting the filter screen 4 and the middle partition plate 5: feeding the filter screen 4 and the middle partition plate 5 into the cylinder blank from the unprocessed end of the cylinder blank, and using spinning grooving process to groove the cylinder blank, and fixing the filter screen 4 and the middle partition plate 5 in the cylinder blank.

[0081] S5, machining of the gas inlet end: the other end of the cylinder blank is machined to form a gas inlet end by using a spinning process; specifically, a vertical spinning machine is used to spin the end of the cylinder blank that has not been machined to form a gas inlet end having a gas inlet straight pipe 3 mounting hole

[0082] S6, mounting of the gas inlet straight pipe 3: the gas inlet straight pipe 3 is mounted on the gas inlet end by using a resistance welding process;

[0083] S7, inspection and packaging.

[0084] As a preferred embodiment of the present application, a part cleaning step is further included, and the part cleaning step at least includes:

[0085] C1, cleaning the inside of the cylinder blank after S2 is completed; and / or,

[0086] C2, cleaning the inside of the cylinder blank after S3 is completed; and / or,

[0087] C3, cleaning the inside of the cylinder blank after S4 is completed; and / or,

[0088] C4, cleaning the inside of the cylinder blank after S5 is completed.

[0089] By setting the cleaning operation, the generation and residue of foreign matter in the cylinder 1 during the machining process are effectively avoided, and the compressor motor is prevented from being stuck due to the foreign matter in the liquid accumulator.

[0090] By using the above scheme, the cylinder 1 of the liquid accumulator is integrally formed by using the spinning and stamping shaping machining methods, which is simpler than the machining process of the traditional two-segment and three-segment liquid accumulators and eliminates the furnace brazing step of structural splicing, thereby saving a large amount of energy and not needing ammonia gas, greatly reducing the safety risk and emission pollution risk, and eliminating the influence of the "neck 123" generated by the traditional spinning process on the volume of the liquid accumulator by stamping shaping, which is beneficial to expanding the volume of the liquid accumulator (referring to FIG. 9, the oil hole 23 is taken as the calculation starting point, and the liquid storage volume is increased by nearly one time), and improving the mute performance; in addition, the gas inlet straight pipe 3 and the gas outlet elbow pipe 2 are both mounted by using resistance welding in the above scheme, which can save energy and eliminate the participation of propane compared with the flame brazing in the traditional process, and also reduces the safety risk and emission pollution risk.

[0091] Preferably, the above-mentioned inlet straight pipe 3 and outlet elbow pipe 2 are provided with welding bosses; the inlet straight pipe 3 is formed by turning process or cold heading process; the outlet elbow pipe 2 is formed by cold heading process and bending process, or by spinning process and bending process. By providing the welding bosses, the installation and positioning of the inlet straight pipe 3 and outlet elbow pipe 2 are facilitated, and the use of copper material as welding material is avoided, thereby reducing the processing cost; meanwhile, the turning, cold heading and bending processes are simple, efficient and low in cost.

[0092] The above-mentioned process will be further explained by a specific example as follows:

[0093] During the preparation process, the cylinder blank, the to-be-installed inlet straight pipe 3, outlet elbow pipe 2, filter screen 4, middle partition plate 5 and other to-be-installed components are prepared; the cylinder blank is cut to a specified length from a pipe according to the specifications of the liquid accumulator cylinder 1.

[0094] Referring to FIGS. 1 and 2, the cut cylinder blank is installed on the pressure spindle of the spinning machine, and the cylinder blank is rotated by the pressure spindle of the spinning machine and cooperates with the spinning wheel to spin-form the one end of the cylinder blank into a spherical shape, so as to become an initial outlet end. In the process of the present application, the upper die of the shaping die is also arranged on the pressure spindle of the spinning machine, and the lower die of the shaping die is arranged on the machine body of the spinning machine. Referring to FIGS. 2 and 4, the cylinder blank is moved by the pressure spindle to contact with the lower die, the upper die is driven to act, and the initial outlet end is shaped by cooperating with the lower die to flatten the bottom of the initial outlet end, and the outlet elbow pipe 2 mounting hole for mounting the outlet elbow pipe 2 is punched in the center of the initial outlet end, so as to complete the processing of the outlet end. As a preferred embodiment of the present example, a vertical spinning machine is preferred, which facilitates the installation of the upper die and lower die of the shaping die, and facilitates the punching and shaping operation.

[0095] Referring to FIGS. 1 and 4, the outlet elbow pipe 2 is installed into the outlet elbow pipe 2 mounting hole, and is positioned by the welding boss on the pipe body of the outlet elbow pipe 2, so as to ensure that the straight pipe portion 21 of the cylinder 1 cooperated with the outlet elbow pipe 2 is coaxially arranged with the outlet elbow pipe 2 mounting hole and the cylinder 1, and the outlet elbow pipe 2 is welded and fixed with the outlet elbow pipe 2 mounting hole by resistance welding process, so as to complete the installation of the outlet elbow pipe 2. As a preferred embodiment of the present example, before the installation of the outlet elbow pipe 2, the cylinder 1 with the processed outlet end is cleaned to remove the sundries and scraps generated during the processing of the outlet end; and after the installation of the outlet elbow pipe 2, the inside of the cylinder 1 is cleaned again, so as to facilitate the installation of the filter screen 4 and middle partition plate 5.

[0096] Referring to FIG. 1 and FIG. 5, first, the middle partition plate 5 is installed inside the cylinder 1 along the axial direction of the cylinder 1, and the outer wall of the cylinder 1 is engraved by a groove engraving machine to make the outer wall of the cylinder 1 protrude radially into the cylinder 1, thereby axially limiting the middle partition plate 5; then the filter screen 4 is installed inside the cylinder 1 along the axial direction of the cylinder 1, and the outer wall of the cylinder 1 is engraved by a groove engraving machine to make the outer wall of the cylinder 1 protrude radially into the cylinder 1, thereby axially limiting the filter screen 4. As an example of a preferred embodiment, the inside of the cylinder 1 can be cleaned before the filter screen 4 is installed after the installation and fixation of the middle partition plate 5, or the inside of the cylinder 1 can be cleaned again after the installation and fixation of the filter screen 4, which facilitates the subsequent processing of the inlet end of the cylinder 1. As an example of a preferred embodiment, the installation and fixation of the filter screen 4 and the middle partition plate 5 can be automatically completed by a net installation and groove engraving machine.

[0097] Referring to FIG. 1 and FIG. 6, the cylinder 1 with the above-mentioned completed outlet end processing, outlet elbow 2 installation, middle partition plate 5 and filter screen 4 installation is installed on the pressure spindle of the vertical spinning machine, the pressure spindle drives the cylinder 1 to rotate and cooperates with the spinning wheel to process the other end of the cylinder 1 to form the inlet end. The inlet end formed here has the same structure as the inlet end of a conventional integrated liquid storage tank, and of course other shaping processes can also be used to shape the inlet end. As an example of a preferred embodiment of the present application, the inside of the cylinder 1 is cleaned after the processing of the inlet end, which facilitates the subsequent installation of the inlet straight pipe 3.

[0098] Referring to FIG. 1 and FIG. 7, the inlet straight pipe 3 is installed into the inlet straight pipe 3 installation hole, and is positioned by the welding boss on the body of the inlet straight pipe 3, to ensure that the inlet straight pipe 3 is coaxially arranged with the inlet straight pipe 3 installation hole and the cylinder 1, and is welded and fixed with the inlet straight pipe 3 installation hole by resistance welding process, to complete the installation of the inlet straight pipe 3.

[0099] Finally, the liquid storage tank product with completed processing and installation of each component is inspected and packaged.

[0100] It should be noted that the above example is only a preferred example of the manufacturing process of the present application, and some cleaning steps can be omitted according to the cleaning degree of the processing environment and other conditions, non-vertical spinning machines can be used, the installation method and position of the shaping die can be changed, and the present application does not make specific limitations on these.

[0101] In a second aspect, referring to FIG. 8, the application further provides a liquid reservoir made by the above manufacturing process, which comprises a cylinder 1, the cylinder 1 comprising a spinning air inlet end 12, a straight cylinder segment 13 and a shaped air outlet end 11, the spinning air inlet end 12 comprising a neck 123 and a conical portion 122 connected to each other, the shaped air outlet end 11 comprising a flat portion 112 and an arc-shaped portion 113 connected to each other, the two ends of the straight cylinder segment 13 being connected to the conical portion 122 and the arc-shaped portion 113 respectively, and the arc-shaped portion 113 protruding towards the outside of the cylinder 1, further comprising an air inlet straight pipe 3 and an air outlet elbow pipe 2, the neck 123 being provided with an air inlet mounting hole 121, and the air inlet straight pipe 3 being fixedly connected to the air inlet mounting hole 121; the flat portion 112 being provided with an air outlet mounting hole 111, and the air outlet elbow pipe 2 being fixedly connected to the air outlet mounting hole 111.

[0102] Continuing to refer to FIGS. 8 and 9, the area of the figure enclosed by the radial plane where the connecting point of the arc-shaped portion 113 and the straight cylinder segment 13 is located, the projections of the arc-shaped portion 113, the flat portion 112 and the wall of the air outlet elbow pipe 2 on the axial section is s1, the area of the figure enclosed by the radial plane where the connecting point of the conical portion 122 and the straight cylinder segment 13 is located, the radial plane where the connecting point of the conical portion 122 and the neck 123 is located and the projection of the extension line of the wall of the air outlet elbow pipe 2 on the axial section is s2, and continuing to refer to FIG. 9, s1 is about 1.7-2.2 times of s2.

[0103] With the above structure, the setting of the flat portion 112 and the arc-shaped portion 113 makes the shaped air outlet end 11 of the application as a whole present a contour of a round edge flat bottom, and the neck 123 structure of the traditional spinning liquid reservoir air outlet end is cancelled, so that the radial dimension and the axial dimension of the bottom liquid storage space of the shaped air outlet end 11 are both increased, the liquid storage volume of the shaped air outlet end 11 of the application is effectively improved compared with the liquid storage volume of the air outlet end of the traditional spinning liquid reservoir, which is further conducive to reducing the influence of small volume on the quiet effect, improving the quiet performance of the liquid reservoir in use, and bringing better use experience to the user. At the same time, the structure of the spinning air inlet end 12 and the shaped air outlet end 11 in the above scheme is simple and convenient to process, which is conducive to improving production efficiency and saving production cost while improving product performance.

[0104] Further, referring to FIGS. 10-12, the gas outlet elbow 2 comprises a straight pipe portion 21 and an elbow portion 22, the straight pipe portion 21 comprises a main body section 212 and a first connecting section 211, the first connecting section 211 is arranged at one end of the main body section 212 and comprises a first welding portion 2111 and a second welding portion 2112 which are in communication with each other, a first welding site 21111 is arranged at a side of the first welding portion 2111 away from the second welding portion 2112, the first welding site 21111 is used for welding connection with the elbow portion 22, an outer wall of the second welding portion 2112 is formed with a first welding boss 21121 which extends in a direction away from the first connecting section 211 along a radial direction of the first connecting section 211 and has an outer diameter greater than that of the main body section 212, a second welding site 21122 is arranged at a side of the first welding boss 21121 away from the first welding portion 2111, the second welding site 21122 is used for welding connection with the cylinder body 1; the elbow portion 22 comprises a bending section 221 and a second connecting section 222 and a third connecting section 223 arranged at two ends of the bending section 221, the second connecting section 222 is connected with the first welding portion 2111 in a matched manner and has a length smaller than that of the third connecting section 223.

[0105] In the above scheme, by integrally forming the first welding boss 21121 at the second welding portion 2112, the second welding process between the first welding boss 21121 / welding flange and the straight pipe portion 21 is directly omitted compared with the prior art, the problem that the welding joint between the straight pipe portion 21 and the elbow portion 22 is damaged or penetrated is avoided from the root, the yield of the gas outlet elbow 2 is greatly improved, the additional solder consumption is saved, and the production cost is reduced; at the same time, by arranging the first welding boss 21121, the positioning and assembling difficulty between the gas outlet straight pipe and the cylinder body 1 is greatly reduced, which is conducive to keeping good concentricity between the straight pipe portion 21 and the cylinder body 1; in addition, by arranging the first welding boss 21121, the solderless welding between the straight pipe portion 21 and the gas outlet port of the cylinder body 1 is also facilitated, and the production cost is further reduced.

[0106] And referring to FIG. 13, in the above scheme, by arranging the first connecting section 211, especially the first welding portion 2111, the structure of the straight pipe portion 21 for connecting with the elbow portion 22 is lengthened compared with the straight pipe portion 21 in the prior art, so that the length of the second connecting section 222 of the aforementioned elbow portion 22 can be smaller than that of the third connecting section 223, that is, compared with the elbow portion 22 of the prior gas outlet elbow 2, under the condition that the overall length of the gas outlet elbow 2 is consistent and the elbow portion 22 has the same bending radius and bending angle, the copper material of the elbow portion 22 can be greatly reduced by adopting the elbow structure in the present application, and the production cost is further reduced.

[0107] In one example, referring to FIG. 12, the inner diameter of the first welding portion 2111 is not greater than the outer diameter of the second connecting section 222 and not less than the inner diameter of the second connecting section 222, the inner diameter of the second welding portion 2112 is less than the outer diameter of the second connecting section 222 and not less than the inner diameter of the second connecting section 222, and the first welding portion 2111 is sleeved outside the second connecting section 222. Preferably, continuing to refer to FIG. 12, a first limiting step 2113 is formed at the connection between the inner wall of the first welding portion 2111 and the inner wall of the second welding portion 2112, and the end of the second connecting section 222 is in limiting cooperation with the first limiting step 2113. In the above example, the first welding portion 2111 is sleeved outside the second connecting section 222, that is, before welding and fixing, the first connecting section 211 of the straight pipe portion 21 and the second connecting section 222 of the elbow pipe portion 22 are positioned and assembled through interference or transition shaft hole type cooperation and the limitation of the first limiting step 2113, which greatly reduces the assembly difficulty of the elbow pipe portion 22 and the straight pipe portion 21, improves the assembly efficiency, and is beneficial to guarantee the concentricity between the second connecting section 222 and the first connecting section 211 and the main body section 212 and the cylinder 1. At the same time, the limitation of the first limiting step 2113 is also beneficial to realize standardized assembly operation and is beneficial to standardized production of the gas outlet elbow pipe 2, which improves product quality and yield.

[0108] Further, referring to FIG. 12, the first welding boss 21121 is provided with a second limiting step 21123 away from one side of the first welding portion 2111, and the second limiting step 21123 is used for limiting cooperation with the gas outlet port of the cylinder 1. In one example, continuing to refer to FIG. 12, the outer diameter of the first connecting section 211 is greater than the outer diameter of the main body section 212, and a cooperation guide portion 2114 is arranged at the connection between the first connecting section 211 and the main body section 212, and the cooperation guide portion 2114 is connected with the second limiting step 21123. Preferably, the cooperation guide portion 2114 is a guide inclined surface arranged at one end of the second limiting step 21123 towards the main body section 212. It should be noted that the structure and arrangement of the cooperation guide portion 2114 in the present application are not limited to the above example, and the above example is only one preferred example of the present application. The cooperation guide portion 2114 in the present application can also adopt other more different structures and arrangements, which are not limited in the present application.

[0109] Through the cooperation of the cooperation guide portion 2114 and the second limiting step 21123, the positioning and assembly difficulty between the gas outlet straight pipe and the cylinder 1 is greatly reduced, and the limitation of the second limiting step 21123 is beneficial to keep the straight pipe portion 21 and the cylinder 1 in good concentricity.

[0110] Continuing to refer to FIG. 12, the end of the first welding portion 2111 is provided with a first welding site 21111, and the second limiting step 21123 is provided with a second welding site 21122. With this arrangement, the distance between the first welding site 21111 and the second welding site 21122 can be increased, so that the influence of the welding of the straight pipe portion 21 to the cylinder 1 on the structure of the first welding site 21111 can be further reduced, and the problem of the welding point between the straight pipe portion 21 and the elbow pipe portion 22 being damaged or broken can be further avoided.

[0111] As a preferred embodiment of the present application, continuing to refer to FIG. 12, the first welding boss 21121 is further provided with a welding guide 21124, which is arranged on the side of the second limiting step 21123 facing the first welding portion 2111 along the axial direction of the first connecting section 211. In the actual assembly process, the edge of the gas outlet port of the cylinder 1 will abut against the second limiting step 21123, and the arrangement of the welding guide 21124 can facilitate quick positioning of the welding point, provide operation space for welding, shorten the radial welding distance, and avoid the problem of excessive radial welding distance resulting in virtual welding inside the weld and affecting the welding quality.

[0112] In a preferred example, referring to FIG. 12, the welding guide 21124 is a welding slope connected to the second limiting step 21123, the corner of the second limiting step 21123 is provided with a transition arc surface 2115, and the connection between the welding slope and the second limiting step 21123 is also provided with a transition arc surface 2115. In the above example, the welding slope has a simple structure and is easy to process during the integrated molding of the integrated straight pipe portion 21, and the use of the slope structure also facilitates the accumulation of heat between the second limiting step 21123 and the cylinder 1 structure for easy welding and fixing. The arrangement of the above-mentioned transition arc surface 2115 facilitates the molten solder or part of the molten first welding boss 21121 used as solder to enter the joint between the second limiting step 21123 and the cylinder 1 structure, improving the welding quality and efficiency.

[0113] It should be noted that the structure and arrangement of the welding guide 21124 and the second limiting step 21123 of the present application are not limited to the above example, and the above example is only a preferred example of the present application. The welding guide 21124 and the second limiting step 21123 can also have other more different structures and arrangements, which are not limited by the present application.

[0114] Further, referring to FIGS. 14-19, the air inlet straight pipe 3 comprises a pipe body portion 31 and a transition portion 32 in axial communication, the transition portion 32 comprises a fourth connecting section 321 and a fifth connecting section 322, the pipe body portion 31 comprises a fitting section 311 connected with the fourth connecting section 321, at least a portion of the fourth connecting section 321 is sleeved outside the fitting section 311 in the axial direction, the outer wall of the fitting section 311 is provided with a first limiting portion 3111, and the port of the fourth connecting section 321 is in limiting fit with the first limiting portion 3111; the end of the fourth connecting section 321 is further provided with a third welding site 3211 for welding connection with the fitting section 311, and the end of the fifth connecting section 322 is provided with a fourth welding site 3222 for welding connection with the cylinder body 1. Further, referring to FIGS. 14 and 15, the outer wall of the fifth connecting section 322 is formed with a second welding boss 3221, the second welding boss 3221 is arranged at the end of the fifth connecting section 322 away from the fourth connecting section 321, and the second welding boss 3221 is provided with the fourth welding site 3222.

[0115] In the above scheme, by adopting the structure of the fourth connecting section 321 and the fifth connecting section 322, the transition portion 32 in the present application has a longer axial length, and by arranging the third welding site 3211 and the fourth welding site 3222 at the ends of the fourth connecting section 321 and the fifth connecting section 322 respectively, the distance between the third welding site 3211 and the fourth welding site 3222 in the present application is greatly extended compared with the distance between the two welding points in the prior art, thereby effectively avoiding the problem that the welding point between the second welding boss 3221 and the copper pipe body is damaged or directly broken. At the same time, referring to FIG. 20, by extending the axial length of the transition portion 32, the length of the pipe body portion 31 can be shortened compared with the existing air inlet straight pipe 3 product without changing the axial length of the air inlet straight pipe 3, thereby reducing the use of copper material and being beneficial to reducing production cost under the premise of ensuring product quality.

[0116] The technical scheme of the present application is further explained and described below through two embodiments:

[0117] In this embodiment, referring to FIGS. 14-16, the tube body part 31 further comprises a main section 212 connected with the fitting section 311, and the inner wall of the fourth connecting section 321 further forms a second limiting part 3212, the port of the fitting section 311 is in limiting cooperation with the second limiting part 3212, and along the circumference of the fifth connecting section 322, the second welding boss 3221 is provided with a third limiting step 3223 away from one side of the fourth connecting section 321, which is used for limiting cooperation with the air inlet port of the cylinder body 1. The cooperation of the second limiting part 3212 and the aforementioned first limiting part 3111 can form bidirectional limiting in the axial direction for the fourth connecting section 321 and the fitting section 311, which improves the cooperation precision and cooperation efficiency between the cooperation part and the fourth connecting section 321. Meanwhile, the cooperation of the third limiting step 3223 and the second welding boss 3221 with the air inlet port of the cylinder body 1 is facilitated, which is conducive to ensuring the good concentricity of the air inlet straight pipe 3 and the cylinder body 1 during the cooperation and connection.

[0118] Preferably, continuing to refer to FIG. 15, the third limiting step 3223 is a limiting step, which comprises an axial limiting part 32231 extending in the radial direction of the fifth connecting section 322 and a radial limiting part 32233 extending in the axial direction of the fifth connecting section 322, the axial limiting part 32231 has an axial limiting surface 32232, the radial limiting part 32233 has a radial limiting surface 32234 connected with the axial limiting surface 32232, the axial limiting surface 32232 extends in the radial direction of the fifth connecting section 322, the included angle between the axial limiting surface 32232 and the radial limiting surface 32234 is obtuse, and the radial limiting surface 32234 is provided with an arc-shaped guide part 32235 away from one end of the axial limiting surface 32232 in the axial direction of the fifth connecting section 322. In the above scheme, the limiting step has a simple structure and is convenient to set, and the limiting step in the above scheme is arranged around the circumference of the fifth connecting section 322, so that the cooperation of the limiting step and the air inlet port of the cylinder body 1 can ensure the good concentricity of the air inlet straight pipe 3 and the cylinder body 1. Meanwhile, since the included angle between the axial limiting surface 32232 and the radial limiting surface 32234 is obtuse, that is, the radial limiting surface 32234 is in an inclined state in the horizontal direction, the cooperation of the arc-shaped guide part 32235 arranged at the end of the radial limiting surface 32234 facilitates the limiting cooperation between the air inlet port of the cylinder body 1 and the limiting step. In addition, continuing to refer to FIG. 16, the inclined arrangement of the radial limiting surface 32234 also facilitates the collection and formation of the solder along the radial limiting surface 32234 towards the connection between the radial limiting surface 32234 and the air inlet port of the cylinder body 1 during the welding process, which improves the welding quality and welding efficiency. Similarly, as a preferred embodiment of this embodiment, referring to FIGS. 14 and 16, the first limiting part 3111 is a limiting inclined surface, and the inner wall of the port of the fourth connecting section 321 is provided with a guide arc surface 3213.

[0119] Embodiment 2: Referring to FIGS. 17-20, the difference between this embodiment and the previous embodiments is that the tube body part 31 only retains the fitting section 311 and the length of the fitting section 311 is extended compared to the fitting section 311 in the embodiments. However, the axial length of the tube body part 31 in this embodiment is reduced compared to the tube body part 31 in the embodiments, further saving copper material.

[0120] It should be noted that the above examples are only preferred embodiments of the present application, and the structure of the intake straight pipe 3 in the present application is not limited to the above embodiments, and other more different structure schemes can also be used.

[0121] As another embodiment of the present application, referring to FIG. 21, the tube body part 31 and the transition part 32 are integrally formed of steel material. This embodiment eliminates the welding operation between the tube body part 31 and the transition part 32, and also eliminates the use of copper material, further reducing production costs.

[0122] Further, referring to FIGS. 5-8, the liquid reservoir in the present application further includes a filter screen 4 and a partition plate 5. The filter screen 4 is arranged on one side of the straight cylinder section 13 close to the spinning intake end 12, and the partition plate 5 is arranged in the middle of the straight cylinder section 13. Preferably, referring to FIG. 8, the partition plate 5 is provided with a first limiting hole 51, and the filter screen 4 is provided with a second limiting hole 41. The first limiting hole 51, the second limiting hole 41, the intake mounting hole 121, the exhaust mounting hole 111, and the axis of the straight cylinder section 13 coincide. The exhaust elbow 2 passes through the first limiting hole 51 and is limited by the partition plate 5, and the end of the exhaust elbow 2 inserted into the cylinder 1 is limited by the second limiting hole 41. With this structure, the limiting cooperation of the aforementioned second limiting step 21123 and the exhaust mounting hole 111 helps to ensure that the straight pipe part 21 of the exhaust elbow 2 inserted into the cylinder 1 has high concentricity with the cylinder 1. At the same time, the exhaust elbow 2, the partition plate 5, and the filter screen 4 limit each other in the radial direction, reducing the radial movement of the partition plate 5, the filter screen 4, and the exhaust elbow 2 during use, ensuring the stability of the installation of the partition plate 5 and the filter screen 4, and also playing a role in shock absorption and noise reduction.

[0123] Further, referring to FIGS. 5-8, along the radial direction of the straight cylinder section 13, the straight cylinder section 13 is provided with a first limiting protrusion 131 and a second limiting protrusion 132 protruding towards the inside of the straight cylinder section 13. Along the axial direction of the straight cylinder section 13, the first limiting protrusion 131 is arranged on both sides of the filter screen 4, and the second limiting protrusion 132 is arranged on both sides of the partition plate 5. The first limiting protrusion 131 can limit the axial movement of the filter screen 4, and the second limiting protrusion 132 can limit the axial movement of the partition plate 5.

[0124] It should be noted that the present application does not make specific limitations on the setting mode of the first limiting protrusion 131 and the second limiting protrusion 132, and any one of the following embodiments can be adopted.

[0125] Embodiment one: referring to FIG. 22, the first limiting protrusion 131 and the second limiting protrusion 132 adopt an integral structure, and the first limiting protrusion 131 and the second limiting protrusion 132 are completely arranged around the circumference of the straight cylinder segment 13. With this setting mode, the filter screen 4 and the middle baffle 5 can be axially limited in the entire circumferential range, which is conducive to ensuring the stability of the installation of the filter screen 4 and the middle baffle 5.

[0126] Embodiment two: referring to FIG. 23, the first limiting protrusion 131 and / or the second limiting protrusion 132 adopt a split structure, including a plurality of protrusion segments 133, and the plurality of protrusion segments 133 are arranged at intervals around the circumference of the straight cylinder segment 13. Along the axis of the straight cylinder segment 13, the projections of the protrusion segments 133 on both sides of the filter screen 4 and the middle baffle 5 coincide or the projections of the protrusion segments 133 on both sides of the filter screen 4 and the middle baffle 5 are staggered. Compared with the foregoing embodiment one, the setting mode in the present embodiment can reduce the processing deformation of the side wall of the cylinder 1 while ensuring the limiting and fixing effect, thereby ensuring the structural strength of the side wall of the cylinder 1.

[0127] In summary, the solder-free liquid reservoir production process in the present application eliminates the production links of furnace brazing, flame brazing, forging, electroplating and other high-energy consumption, high-cost, high-safety hazard and high-pollution hazard in the traditional production process during the manufacturing process, which is more environmentally friendly and efficient. At the same time, the first welding boss 21121 and the second welding boss 3221 in the above-mentioned scheme are conducive to the complete contact of the welding electrode used for resistance welding with the welding position, thereby ensuring the welding quality, eliminating the problem of uneven distribution of solder in the existing welding method, which leads to single-point / single-side leakage of the liquid reservoir during use, and is conducive to ensuring the welding quality, thereby reducing or eliminating the water tightness inspection process, further improving the production efficiency, reducing the production water, reducing water pollution, and reducing the production cost. In addition, by combining the vertical spinning machine with the shaping die and using the net installation and slotting machine, the degree of automation of the production process is effectively improved, the labor intensity is greatly reduced, the labor cost is saved, and the processing efficiency is improved. Moreover, the liquid reservoir produced by the production process of the present application retains the advantages of the traditional integral spinning liquid reservoir, eliminates the influence of the structure of the neck 123 at the gas outlet on the liquid storage volume, effectively increases the liquid storage volume of the liquid reservoir, reduces the probability of "liquid strike" problem of the compressor, improves the mute performance, so that the spinning liquid reservoir can also achieve the use effect of the three-section liquid reservoir, which effectively reduces the use cost of the user while ensuring the user to obtain a good use experience.

[0128] The places not mentioned in the application can be realized by using or referring to the existing technology.

[0129] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each of the embodiments focuses on the difference from other embodiments.

[0130] The above only describes the embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A reservoir production process, characterized by, The method comprises the following steps: S1, preparing materials: including a cylinder blank, an air inlet straight pipe, an air outlet elbow, a filter screen and a middle partition plate; S2, processing an air outlet end: using a spinning process and a stamping shaping process to process one end of the cylinder blank to form an air outlet end with an arc-shaped edge and a flat end face; S3, installing the air outlet elbow: using a resistance welding process to install the air outlet elbow at the air outlet end; S4, installing the filter screen and the middle partition plate: feeding the filter screen and the middle partition plate into the cylinder blank from the other end of the cylinder blank, using a spinning grooving process to groove the cylinder blank, and fixing the filter screen and the middle partition plate in the cylinder blank; S5, processing an air inlet end: using a spinning process to process the other end of the cylinder blank to form an air inlet end; S6, installing the air inlet straight pipe: using a resistance welding process to install the air inlet straight pipe at the air inlet end; S7, inspecting and packaging.

2. The reservoir production process of claim 1, wherein, S2 specifically comprises the following steps: a. using a spinning machine to spin one end of the cylinder blank to make the outer contour of the one end of the cylinder blank spherical to form an initial air outlet end; b. using an upper die provided on a pressure spindle of the spinning machine and a bottom die provided opposite to the pressure spindle along the axial direction to flatten the bottom of the initial air outlet end and stamp an air outlet elbow mounting hole for mounting the air outlet elbow, thereby forming the air outlet end.

3. The reservoir production process of claim 1, wherein, S5 specifically comprises the following steps: using a vertical spinning machine to spin the other end of the cylinder blank to form an air inlet end with an air inlet straight pipe mounting hole.

4. A reservoir characterized by, The liquid reservoir is produced by the production process of any one of claims 1-3, comprising a cylinder, the cylinder comprising a spinning air inlet end, a straight cylinder segment and a shaped air outlet end, the spinning air inlet end comprising a neck portion and a conical portion connected to each other, the shaped air outlet end comprising a flat portion and an arc-shaped portion connected to each other, the straight cylinder segment being connected to the conical portion and the arc-shaped portion at two ends thereof, and the arc-shaped portion protruding towards the outside of the cylinder, further comprising an air inlet straight pipe and an air outlet elbow; the neck portion is provided with an air inlet mounting hole, and the air inlet straight pipe is fixedly connected to the air inlet mounting hole; the flat portion is provided with an air outlet mounting hole, and the air outlet elbow is fixedly connected to the air outlet mounting hole.

5. The reservoir of claim 4, wherein The air outlet elbow comprises a straight pipe portion and an elbow portion, the straight pipe portion comprises an integral main body segment and a first connecting segment, the first connecting segment is provided at one end of the main body segment and comprises a first welding portion and a second welding portion connected to each other, a first welding site is provided on the side of the first welding portion away from the second welding portion, the first welding site is used for welding connection with the elbow portion, an outer wall of the second welding portion is formed with a first welding boss extending in a direction away from the first connecting segment along a radial direction of the first connecting segment, and an outer diameter of the first welding boss is greater than an outer diameter of the main body segment, a second welding site is provided on the side of the first welding boss away from the first welding portion, and the second welding site is used for welding connection with the cylinder.

6. The reservoir of claim 4, wherein The air inlet straight pipe comprises a pipe body part and a transition part in axial communication, the transition part comprises a fourth connecting section and a fifth connecting section, the pipe body part comprises a matching section matched with the fourth connecting section, at least a part of the fourth connecting section is sleeved outside the matching section in the axial direction, an outer wall of the matching section is provided with a first limiting part, and a port of the fourth connecting section is matched with the first limiting part.

7. The reservoir of any one of claims 5 or 6, wherein, A filter screen and a partition plate are further arranged inside the cylinder body, the filter screen is arranged on one side of the straight cylinder section close to the spinning air inlet end, and the partition plate is arranged in the middle of the straight cylinder section.

8. The reservoir of claim 7, wherein, The partition plate is provided with a first limiting hole, one side of the filter screen facing the partition plate is provided with a second limiting hole, the first limiting hole, the second limiting hole, the air inlet mounting hole, the air outlet mounting hole and the axis of the straight cylinder section coincide, the air outlet elbow passes through the first limiting hole and is matched with the partition plate, and one end of the air outlet elbow extending into the inside of the cylinder body is matched with the second limiting hole.

9. The reservoir of claim 7, wherein, In the radial direction of the straight cylinder section, the straight cylinder section is provided with a first limiting protrusion and a second limiting protrusion protruding towards the inside of the straight cylinder section, in the axial direction of the straight cylinder section, the first limiting protrusion is arranged on both sides of the filter screen, and the second limiting protrusion is arranged on both sides of the partition plate, the first limiting protrusion can limit the axial movement of the filter screen, and the second limiting protrusion can limit the axial movement of the partition plate.

10. The reservoir of claim 9, wherein, The first limiting protrusion and the second limiting protrusion are in an integral structure, and the first limiting protrusion and the second limiting protrusion are arranged completely around the circumference of the straight cylinder section, or the first limiting protrusion and / or the second limiting protrusion are in a split structure, comprising a plurality of protruding sections, and a plurality of the protruding sections are arranged at intervals around the circumference of the straight cylinder section.

Images