Filter screen assembly, liquid separator and compressor

Abstract

The utility model provides a filter screen assembly, a liquid separator and a compressor, and belongs to the technical field of liquid separators. The filter screen assembly comprises a support and a baffle, a plurality of circulation openings are formed in the support, a filter screen is arranged on the support, and the filter screen is arranged on one side of the circulation openings. The baffle is fixed to one side of the support and deviates from the filter screen. A flow guide structure is arranged on the side, away from the filter screen, of the baffle, and a plurality of circulation holes are further formed in the baffle. The filter screen assembly is high in liquid separation capacity and high in reliability, has the noise reduction capacity, and can reduce the operation noise of the compressor and improve the use experience of a user.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of liquid distributor, especially relates to a filter screen subassembly, liquid distributor and compressor. BACKGROUND

[0002] The rolling rotor type compressor is the core component of the refrigeration system, and its main function is to compress the low-pressure refrigerant (usually in gas-liquid mixed state) from the refrigeration system into high-pressure gaseous refrigerant to provide power for the whole refrigeration cycle. However, during the operation of the compressor, if too much liquid refrigerant directly enters the suction port of the compressor, liquid hammer problem will occur, which not only damages the internal parts of the compressor, but also increases its power consumption and affects the overall refrigeration efficiency. In order to solve this problem, a liquid distributor is usually arranged at the suction port of the compressor. The main function of the liquid distributor is to separate the gas-liquid mixed refrigerant, so that the gaseous refrigerant can smoothly enter the compressor, and the liquid refrigerant is stored in the liquid distributor. In the internal structure of the existing liquid distributor, the filter screen subassembly, the partition plate and the flow-through straight pipe are the key components, and the performance of the filter screen subassembly has a decisive influence on the liquid separation effect of the liquid distributor.

[0003] However, most of the liquid distributors on the market have some problems. First, the filter screen subassembly is usually arranged in an arc shape on the filter screen support, and is close to the suction port of the compressor. When a large amount of high-speed gas-liquid mixed refrigerant flows through the filter screen in a short distance, the arc-shaped filter screen is easy to be damaged, which leads to the decrease of the performance of the filter screen and the weakening of the liquid separation effect. In addition, since the filter screen is close to the suction port, when too much liquid refrigerant is separated at the filter screen, some screen holes will be blocked, further reducing the gas-liquid separation performance. Furthermore, the existing liquid distributor has poor noise reduction performance, and the refrigerant flow, compressor operation and other factors during the operation of the refrigeration system will produce noise, which will adversely affect the use environment and user experience.

[0004] Therefore, it is necessary to improve the existing liquid distributor to overcome the defects of the prior art. UTILITY MODEL CONTENTS

[0005] In order to overcome the problems in the related art, one of the purposes of the utility model is to provide a filter screen subassembly which has strong liquid separation capacity, high reliability, noise reduction capacity, can reduce the noise of the compressor operation and improve the user experience.

[0006] A filter screen subassembly, comprising:

[0007] A support is provided with a plurality of flow-through ports, and a filter screen is arranged on the support and located on one side of the flow-through ports.

[0008] A baffle is fixed to one side of the bracket and is opposite to the filter screen; a flow guiding structure is provided on the side of the baffle opposite to the filter screen, and multiple flow holes are also provided on the baffle.

[0009] Specifically, the flow ports are evenly and orderly distributed on the support, providing channels for the flow of refrigerant. The filter screen on the support is tightly attached to one side of the flow port, and its main function is to filter and separate the gas-liquid mixture of refrigerant, ensuring that the gaseous and liquid refrigerant can be effectively separated.

[0010] The baffle is fixed to one side of the bracket and positioned opposite the filter. This design allows the baffle to effectively block and guide the refrigerant flow, ensuring it follows a predetermined path. A flow-guiding structure is located on the side of the baffle opposite the filter, further optimizing the refrigerant flow path for smoother and more orderly flow. Simultaneously, the baffle features multiple flow holes. The size, shape, and distribution of these holes can be adjusted according to actual conditions, allowing for smooth refrigerant passage while also providing a degree of noise reduction, lowering the compressor's operating noise.

[0011] In the actual operation, the gas-liquid mixture of refrigerant first passes through a baffle. Under the combined action of the baffle and the flow-guiding structure, the gas-liquid mixture is dispersed and guided to different flow paths. Subsequently, the refrigerant flows through the flow holes to the support frame, where it is filtered and separated by the filter screen. The gaseous refrigerant enters the upper chamber of the distributor through the pores of the filter screen, while the liquid refrigerant flows along the outside of the filter screen to the lower chamber of the distributor. Throughout this process, the baffle, flow-guiding structure, and filter screen work together to ensure efficient separation and smooth flow of the refrigerant.

[0012] The filter assembly features a rational and robust structural design, with tight and reliable connections between components such as the support, baffles, and filter screen. The baffle design ensures the filter assembly maintains structural stability and integrity even under high-pressure and high-speed refrigerant scouring, significantly improving its reliability. The baffles and flow-guiding structure also enhance the assembly's impact resistance, further extending its service life. The size, shape, and distribution of the flow holes can be adjusted according to actual needs, and these holes generate an acoustic effect, reducing noise generated during refrigerant flow. This design makes the filter assembly highly effective in reducing compressor operating noise, providing users with a quieter and more comfortable operating environment.

[0013] In a preferred embodiment of this invention, the flow guiding structure is disposed in the middle of the baffle, and along the axial direction of the baffle, the cross-sectional area of ​​the flow guiding structure gradually increases from the side away from the filter screen to the side closer to the filter screen.

[0014] In a preferred embodiment of this invention, the flow guiding structure is a hemisphere, a polygon, or a frustum.

[0015] In practical applications, along the axis of the baffle, the cross-sectional area of ​​the flow guiding structure gradually increases from the side furthest from the filter screen to the side closest to the filter screen. This design allows the refrigerant to gradually slow down and diffuse as it flows through the flow guiding structure, thus distributing it more evenly on the filter screen and improving the efficiency of gas-liquid separation.

[0016] Regarding the shape selection of the flow guiding structure, this embodiment provides several preferred options, including hemispheres, polygons, and frustums. These shapes all have good flow guiding and dispersing effects, and can be flexibly selected according to different application requirements and space constraints. The hemispherical flow guiding structure can provide a smoother flow path and reduce resistance during refrigerant flow; the polygonal flow guiding structure can better disperse the refrigerant through multiple facets, improving the liquid separation effect; while the frustum-shaped flow guiding structure combines the advantages of the former two, both smoothly guiding the refrigerant flow and effectively dispersing the refrigerant.

[0017] During operation, the gas-liquid mixture of refrigerant first passes through the flow-guiding structure on the baffle. Under the influence of this structure, the refrigerant is gradually slowed and diffused, then flows through the flow holes and onto the filter screen on the support. The filter screen further filters and separates the refrigerant, ensuring effective separation of the gaseous and liquid states. Throughout this process, the flow-guiding structure, baffle, and filter screen work together to achieve efficient refrigerant separation, smooth flow, and noise reduction.

[0018] In a preferred embodiment of this invention, a plurality of flow holes are arranged in a ring on the baffle to form a flow guide ring, and a plurality of flow guide rings are provided on the baffle.

[0019] In this embodiment, the arrangement of multiple guide rings allows the refrigerant to experience a more uniform and stable flow as it passes through the baffle, reducing turbulence and eddies during the flow process and improving the uniformity and stability of the refrigerant flow. The cooperation between the guide structure and the guide rings ensures that the refrigerant is more evenly distributed on the filter screen, improving the efficiency of gas-liquid separation. Simultaneously, this design reduces refrigerant accumulation and clogging at the filter screen, extending its service life. The multiple flow holes on the baffle, working in conjunction with the guide rings, not only allow the refrigerant to pass smoothly but also provide a degree of noise reduction. When the refrigerant passes through the flow holes, the carefully designed size, shape, and distribution of the flow holes, combined with the guiding effect of the guide rings, effectively reduce the noise generated during refrigerant flow.

[0020] In a preferred embodiment of this invention, the bracket is frustum-shaped, and a plurality of flow ports are disposed on the top of the bracket, and the plurality of flow ports are evenly distributed on the bracket along the circumferential direction of the bracket.

[0021] In a preferred embodiment of this invention, the filter screen is adapted to the bottom shape of the bracket, and when the filter screen is installed on the bracket, the surface of the filter screen is in contact with the bottom surface of the bracket.

[0022] The filter screen is fitted to the bottom shape of the support, and its surface is in contact with the bottom surface of the support. This design increases the effective working area of ​​the filter screen, improving gas-liquid separation capability. Furthermore, the filter screen's structure, tightly fitted to the frustum-shaped side of the support, provides greater structural strength and reduces the possibility of damage. During operation, the gas-liquid mixture first passes through the guide structure and guide ring on the baffle, gradually slowing down, diffusing, and guiding it to the flow port at the top of the support. Then, the refrigerant flows evenly through the filter screen, being filtered and separated into gaseous and liquid components. The gaseous refrigerant enters the upper chamber of the distributor through the pores of the filter screen, while the liquid refrigerant flows along the outside of the filter screen to the lower chamber of the distributor. Throughout this process, the frustum-shaped design of the support, the tight installation of the filter screen, and the coordinated use of the baffle's guide structure and flow port achieve efficient refrigerant separation, smooth flow, and noise reduction.

[0023] In a preferred embodiment of this invention, the filter assembly is installed inside the liquid separator housing, the side wall of the support is provided with a first snap-fit ​​structure, and the liquid separator housing is provided with a second snap-fit ​​structure, wherein the first snap-fit ​​structure and the second snap-fit ​​structure are snapped together.

[0024] In this embodiment, the side wall of the bracket is provided with a first snap-fit ​​structure, while the inner wall of the dispensing shell of the dispenser is provided with a second snap-fit ​​structure that cooperates with it. This snap-fit ​​structure design allows the filter assembly to be easily installed in the compressor, and the mutual snap-fit ​​between the first and second snap-fit ​​structures achieves a stable fixation of the filter assembly in the compressor.

[0025] During installation, first align the filter assembly bracket with the compressor's mounting position, then gently push it in so that the first snap-fit ​​structure on the bracket's side wall aligns and snaps into place with the second snap-fit ​​structure on the compressor's inner wall. This installation method is not only simple and easy, but also ensures that the filter assembly is accurately and stably positioned within the compressor, preventing it from shaking or shifting during compressor operation.

[0026] The second objective of this invention is to provide a liquid dispenser that includes the filter assembly described above.

[0027] This distributor is primarily used in refrigeration systems, particularly inside compressors, to achieve efficient separation of the gas-liquid mixture of refrigerant. The distributor includes a separator housing and the filter assembly described in detail in the above embodiments. The separator housing is designed with appropriate shape and size to accommodate the filter assembly and to connect with other refrigeration system components.

[0028] The filter assembly is installed inside the distributor housing, and its support is securely fixed by a first snap-fit ​​structure that engages with a second snap-fit ​​structure inside the distributor housing. This snap-fit ​​design not only simplifies the installation process but also ensures that the filter assembly is accurately and stably positioned within the distributor, preventing it from shaking or shifting due to the operation of the refrigeration system.

[0029] The working principle of the distributor is as follows: After the gas-liquid mixture of refrigerant enters the distributor housing, it first passes through the baffle of the filter assembly and is guided by the flow guiding structure and flow guiding ring to the flow port at the top of the support. Then, the refrigerant flows evenly through the filter screen and is filtered and separated into gaseous and liquid parts. The gaseous refrigerant enters the upper chamber of the distributor through the pores of the filter screen and is then led out to other parts of the refrigeration system; while the liquid refrigerant flows along the outside of the filter screen to the lower chamber of the distributor and is finally discharged or further processed through the outlet of the lower chamber.

[0030] The third objective of this utility model is to provide a compressor that includes the liquid separator as described above.

[0031] In a preferred embodiment of this utility model, the compressor includes a housing, with an intake pipe on one side and an exhaust pipe on the opposite side.

[0032] The housing is equipped with a liquid separator, which includes a liquid separator shell, a filter assembly, and a liquid separator body. The liquid separator shell is disposed inside the housing, and the filter assembly and the liquid separator body are both disposed in the liquid separator shell. The filter assembly is disposed close to the air inlet tube.

[0033] The housing also contains a straight tube, one end of which is connected to the exhaust pipe, and the other end of which extends through the liquid separator to one side of the support. A connecting tube is provided on one side of the filter screen, the axis of which coincides with the axis of the straight tube, and the inner diameter of the connecting tube is larger than the outer diameter of the straight tube. The distance from the side of the support near the straight tube to the bottom of the connecting tube is L1, and the length of the straight tube is L2, where L1 < L2.

[0034] A connecting pipe is located on one side of the filter assembly, with its axis coinciding with that of the straight pipe. This design ensures that the refrigerant can smoothly enter the connecting pipe after flowing through the filter assembly and further into other parts of the refrigeration system. Simultaneously, the inner diameter of the connecting pipe is larger than the outer diameter of the straight pipe; this dimensional design not only facilitates the installation and fixation of the straight pipe but also ensures unobstructed flow of the refrigerant within the connecting pipe.

[0035] Furthermore, the distance L1 from the side of the bracket closest to the straight pipe to the bottom of the connecting pipe is less than the length L2 of the straight pipe. This dimensional relationship ensures that the straight pipe can completely penetrate the dispensing housing and extend to one side of the bracket, while guaranteeing an effective connection between the connecting pipe and the straight pipe and smooth flow of refrigerant.

[0036] During compressor operation, the gas-liquid mixture of refrigerant enters the housing through the suction pipe and is first separated into gas and liquid states by the filter assembly. The separated gaseous refrigerant enters the upper chamber of the distributor through the pores of the filter assembly and flows along the straight pipe to the discharge pipe for discharge; while the liquid refrigerant flows along the outside of the filter to the lower chamber of the distributor and is discharged or further processed through other means.

[0037] Thanks to its optimized filter assembly and distributor design, this compressor can achieve efficient separation of gas-liquid mixed refrigerant, improving the performance and stability of the refrigeration system.

[0038] The beneficial effects of this utility model are as follows:

[0039] This utility model provides a filter assembly, which includes a support and a baffle. The support has multiple flow ports, and a filter is mounted on the support, positioned to one side of each flow port. The filter is used to filter and separate a gas-liquid mixture of refrigerant. The baffle is fixed to one side of the support, and the baffle and filter are positioned opposite each other. A flow-guiding structure is provided on the side of the baffle opposite to the filter, and the baffle also has multiple flow holes. The baffle effectively blocks and guides the flow of refrigerant. The flow-guiding structure on the side of the baffle opposite to the filter further optimizes the flow path of the refrigerant, ensuring that the refrigerant flows in a predetermined direction. Simultaneously, the multiple flow holes on the baffle allow refrigerant to pass through while also providing a certain degree of noise reduction, thus reducing the operating noise of the pressure compression molding machine. In the actual operation, the gas-liquid mixture of refrigerant first passes through a baffle. Under the action of the baffle and the flow guiding structure, the gas-liquid mixture disperses and flows through the flow holes and then through the support. The filter screen on the support filters and separates the gas-liquid mixture. This filter assembly, through the cooperation of the baffle and the support, improves the reliability of the entire assembly. Furthermore, the flow holes of the baffle have noise reduction capabilities, reducing the noise generated during the refrigerant flow.

[0040] This application also provides a distributor and a compressor. The distributor includes the filter assembly described above. The distributor can achieve efficient separation of the gas-liquid mixture of refrigerant, improving the performance and stability of the refrigeration system. Furthermore, the optimized design of the filter assembly and distributor, as well as the matching relationship between the straight pipes and connecting pipes, improves the reliability and durability of the compressor, reducing the failure rate and maintenance costs. Attached Figure Description

[0041] Figure 1 This is a first perspective view of the filter assembly provided in an embodiment of the present invention;

[0042] Figure 2 This is a second perspective view of the filter assembly provided in an embodiment of the present invention;

[0043] Figure 3 This is a cross-sectional view of the filter assembly provided in an embodiment of this utility model;

[0044] Figure 4 This is an exploded view of the filter assembly provided in an embodiment of this utility model;

[0045] Figure 5 This is a schematic diagram of the filter assembly provided in an embodiment of the present invention being disposed inside the liquid separator housing;

[0046] Figure 6 This is a schematic diagram showing the liquid separator provided in an embodiment of the present invention installed in the compressor housing.

[0047] Figure label:

[0048] 1. Baffle; 11. Flow guiding structure; 12. Flow hole; 2. Support; 21. Flow port; 22. Filter screen; 23. Connecting pipe; 24. First snap-fit ​​structure; 3. Liquid separator shell; 31. Second snap-fit ​​structure; 32. Liquid separator body; 4. Shell; 41. Intake pipe; 42. Straight pipe; 43. Exhaust pipe; Detailed Implementation

[0049] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0050] However, most liquid distributors currently on the market have several problems. First, the filter assembly is typically arched on the filter holder and close to the compressor's suction port. When a large amount of high-speed gas-liquid mixed refrigerant rushes across the filter over a short distance, the arched filter is easily damaged, leading to decreased filter performance and reduced liquid separation efficiency. Furthermore, due to the close proximity of the filter to the suction port, excessive liquid refrigerant separation at the filter can cause some pores to become clogged, further reducing gas-liquid separation performance. Moreover, existing liquid distributors have poor noise reduction capabilities. During refrigeration system operation, refrigerant flow and compressor operation generate noise, negatively impacting the operating environment and user experience.

[0051] Based on this, this application provides a filter assembly.

[0052] Example 1

[0053] like Figures 1-4 As shown, this embodiment provides a filter assembly, which includes a support 2 and a baffle 1. The support 2 is provided with multiple flow ports 21, and a filter 22 is provided on the support 2, with the filter 22 disposed on one side of the flow ports 21. The filter 22 is used to filter and separate the gas-liquid mixture of refrigerant. The baffle 1 is fixed to one side of the support 2, and the baffle 1 and the filter 22 are opposite to each other. A flow guiding structure 11 is provided on the side of the baffle 1 opposite to the filter 22, and the baffle 1 is also provided with multiple flow holes 12.

[0054] Specifically, the flow ports 21 are evenly and orderly distributed on the support 2, providing channels for the flow of refrigerant. The filter screen 22 on the support 2 is tightly attached to one side of the flow ports 21, and its main function is to filter and separate the gas-liquid mixture of refrigerant, ensuring effective separation of gaseous and liquid refrigerant. The shape of the flow ports 21 can be fan-shaped.

[0055] Baffle 1 is fixed to one side of bracket 2 and forms a back-to-back arrangement with filter 22. This design allows baffle 1 to effectively block and guide the flow of refrigerant, ensuring that the refrigerant flows along a predetermined path. A flow-guiding structure 11 is provided on the side of baffle 1 facing away from filter 22. This structure further optimizes the refrigerant flow path, making the refrigerant flow smoother and more orderly. Simultaneously, baffle 1 is also provided with multiple flow holes 12. The size, shape, and distribution of these flow holes 12 can be adjusted according to actual conditions, allowing the refrigerant to pass smoothly while also producing a certain degree of noise reduction, thus lowering the operating noise of the compressor.

[0056] In the specific working process, the gas-liquid mixed refrigerant first passes through baffle 1. Under the combined action of baffle 1 and flow guiding structure 11, the gas-liquid mixed refrigerant is dispersed and guided to different flow paths. Subsequently, the refrigerant flows through flow hole 12 and through support 2, where it is filtered and separated by filter screen 22. The gaseous refrigerant enters the upper chamber of the distributor through the pores of filter screen 22, while the liquid refrigerant flows along the outside of filter screen 22 to the lower chamber of the distributor. Throughout the process, baffle 1, flow guiding structure 11, and filter screen 22 work together to ensure efficient separation and smooth flow of the refrigerant.

[0057] The filter assembly features a rational and robust structural design, with tight and reliable connections between components such as the bracket 2, baffle 1, and filter 22. The design of baffle 1 ensures the filter assembly maintains structural stability and integrity when subjected to high-pressure and high-speed refrigerant scouring, significantly improving its reliability. The baffle 1 and the flow guiding structure 11 also enhance the assembly's impact resistance, further extending its service life. The size, shape, and distribution of the flow holes 12 can be adjusted according to actual needs. These flow holes 12 generate an acoustic effect, reducing noise generated during refrigerant flow. This design makes the filter assembly highly effective in reducing compressor operating noise, providing users with a quieter and more comfortable operating environment.

[0058] Example 2

[0059] This embodiment is an improvement on embodiment 1.

[0060] like Figures 1-4 As shown, this embodiment provides a detailed structure of the flow guiding structure 11. Specifically, the flow guiding structure 11 is disposed in the middle of the baffle 1, and along the axial direction of the baffle 1, the cross-sectional area of ​​the flow guiding structure 11 gradually increases from the side away from the filter screen 22 to the side closer to the filter screen 22.

[0061] In a preferred embodiment of this invention, the flow guiding structure 11 is a hemisphere, a polygon, or a frustum.

[0062] In practical applications, along the axial direction of the baffle 1, the cross-sectional area of ​​the flow guiding structure 11 gradually increases from the side away from the filter screen 22 to the side closer to the filter screen 22. This design allows the refrigerant to gradually slow down and diffuse as it flows through the flow guiding structure 11, thereby distributing it more evenly on the filter screen 22 and improving the efficiency of gas-liquid separation.

[0063] Regarding the shape selection of the flow guiding structure 11, this embodiment provides several preferred options, including a hemisphere, a polygon, and a frustum. These shapes all have good flow guiding and dispersing effects, and can be flexibly selected according to different application requirements and space constraints. The hemispherical flow guiding structure 11 can provide a smoother flow path and reduce resistance during refrigerant flow; the polygonal flow guiding structure 11 can better disperse the refrigerant through multiple facets, improving the liquid separation effect; while the frustum-shaped flow guiding structure 11 combines the advantages of the former two, which can both smoothly guide the refrigerant flow and effectively disperse the refrigerant.

[0064] In the actual operation, the gas-liquid mixed refrigerant first passes through the flow guiding structure 11 on the baffle 1. Under the action of the flow guiding structure 11, the refrigerant is gradually slowed down and diffused, and then flows through the flow hole 12 and the filter screen 22 on the support 2. The filter screen 22 further filters and separates the refrigerant, ensuring that the gaseous and liquid refrigerant can be effectively separated. Throughout the process, the flow guiding structure 11, the baffle 1, and the filter screen 22 work together to achieve efficient refrigerant separation, smooth flow, and noise reduction.

[0065] Example 3

[0066] This embodiment is an improvement on embodiment 1.

[0067] like Figures 1-4 As shown, in this embodiment, one configuration of the flow hole 12 is provided.

[0068] The plurality of flow holes 12 are arranged in a ring on the baffle 1 to form a flow guide ring, and the flow guide ring is provided on the baffle 1 in a plurality of ways.

[0069] In this embodiment, the arrangement of multiple guide rings allows the refrigerant to experience a more uniform and stable flow when flowing through the baffle 1, reducing turbulence and eddies during the flow process and improving the uniformity and stability of the refrigerant flow. The cooperation between the guide structure 11 and the guide rings allows the refrigerant to be distributed more evenly on the filter screen 22, improving the efficiency of gas-liquid separation. Simultaneously, this design also reduces refrigerant accumulation and clogging at the filter screen 22, extending its service life. The multiple flow holes 12 on the baffle 1, in conjunction with the guide rings, not only allow the refrigerant to pass smoothly but also produce a certain degree of noise reduction. When the refrigerant passes through the flow holes 12, the presence of the flow holes 12, combined with the guiding effect of the guide rings, can more effectively reduce the noise generated during the refrigerant flow.

[0070] In this embodiment, a detailed structure of the bracket 2 is also provided. The bracket 2 is frustum-shaped, and a plurality of flow ports 21 are disposed on the top of the bracket 2, and the plurality of flow ports 21 are evenly distributed on the bracket 2 along the circumferential direction of the bracket 2.

[0071] More specifically, the filter 22 is adapted to the bottom shape of the bracket 2, and when the filter 22 is installed on the bracket 2, the surface of the filter 22 is in contact with the bottom surface of the bracket 2.

[0072] The filter screen 22 is adapted to the bottom shape of the support 2, and the surface of the filter screen 22 is in contact with the bottom surface of the support 2. This design increases the effective working area of ​​the filter screen 22, improving the gas-liquid separation capability. Furthermore, the design of the filter screen 22's structure closely fitting the frustum-shaped side of the support 2 provides greater structural strength and reduces the possibility of damage. During operation, the gas-liquid mixture of refrigerant first passes through the guide structure 11 and guide ring on the baffle 1, where it is gradually slowed, diffused, and guided to the flow port 21 at the top of the support 2. Then, the refrigerant flows evenly through the filter screen 22, where it is filtered and separated into gaseous and liquid components. The gaseous refrigerant enters the upper chamber of the distributor through the pores of the filter screen 22, while the liquid refrigerant flows along the outer side of the filter screen 22 to the lower chamber of the distributor. Throughout the process, the frustum-shaped design of the bracket 2, the tight installation of the filter 22, and the flow guiding structure 11 and flow hole 12 of the baffle 1 work together to achieve efficient separation, smooth flow and noise reduction of the refrigerant.

[0073] Example 4

[0074] This embodiment is an improvement on embodiment 1.

[0075] like Figures 1-4 As shown, in this embodiment, one installation method of the filter assembly is provided. Specifically, the filter assembly is installed inside the liquid separator housing 3. The side wall of the support 2 is provided with a first snap-fit ​​structure 24, and the liquid separator housing 3 is provided with a second snap-fit ​​structure 31. The first snap-fit ​​structure 24 and the second snap-fit ​​structure 31 are snapped together.

[0076] In this embodiment, the side wall of the bracket 2 is provided with a first snap-fit ​​structure 24, while the inner wall of the liquid separator housing 3 is provided with a second snap-fit ​​structure 31 that cooperates with it. This snap-fit ​​structure design allows the filter assembly to be easily installed in the compressor, and the mutual snap-fit ​​between the first snap-fit ​​structure 24 and the second snap-fit ​​structure 31 achieves a stable fixation of the filter assembly in the compressor.

[0077] During the installation process, firstly, align the filter assembly bracket 2 with the compressor's installation position, then gently push it in so that the first snap-fit ​​structure 24 on the side wall of the bracket 2 aligns and snaps into place with the second snap-fit ​​structure 31 on the compressor's inner wall. This installation method is not only simple and easy to implement, but also ensures that the filter assembly is accurately and stably positioned within the compressor, preventing it from shaking or shifting due to compressor operation.

[0078] The first snap-fit ​​structure 24 can be a groove provided on the side wall of the bracket 2, and the second snap-fit ​​structure 31 is a protrusion provided on the inner wall of the liquid separator housing 3. The cross-sectional shape of the protrusion can be semi-circular, and the groove is adapted to the protrusion.

[0079] Example 5

[0080] This embodiment provides a liquid dispenser that includes the filter assembly as described above.

[0081] like Figures 1-5 As shown, this distributor is mainly used in refrigeration systems, particularly inside compressors, to achieve efficient separation of the gas-liquid mixture of refrigerant. The distributor includes a distributor housing 3 and a filter assembly described in detail in the above embodiments. The distributor housing 3 is designed with appropriate shape and size to accommodate the filter assembly and connect to other refrigeration system components.

[0082] The filter assembly is installed inside the liquid separator housing 3, and its bracket 2 is interlocked with the second snap-fit ​​structure 31 provided inside the liquid separator housing 3 via the first snap-fit ​​structure 24, achieving a stable fixation. This snap-fit ​​structure design not only simplifies the installation process but also ensures that the filter assembly is accurately and stably positioned within the liquid separator, preventing shaking or displacement due to the operation of the refrigeration system.

[0083] The working principle of the distributor is as follows: After the gas-liquid mixture of refrigerant enters the distributor housing 3, it first passes through the baffle 1 of the filter assembly and is guided by the flow guiding structure 11 and the flow guiding ring to the flow port 21 at the top of the support 2. Then, the refrigerant flows evenly through the filter 22 and is filtered and separated into gaseous and liquid parts. The gaseous refrigerant enters the upper chamber of the distributor through the pores of the filter 22 and is then led out to other parts of the refrigeration system; while the liquid refrigerant flows along the outside of the filter 22 to the lower chamber of the distributor and is finally discharged or further processed through the outlet of the lower chamber.

[0084] Example 6

[0085] This embodiment provides a compressor that includes the liquid distributor described above.

[0086] like Figures 1-6As shown, in this embodiment, the compressor includes a housing 4, with an intake pipe 41 on one side and an exhaust pipe 43 on the opposite side;

[0087] The housing 4 is provided with a liquid separator, which includes a liquid separator shell 3, a filter assembly, and a liquid separator body 32. The liquid separator shell 3 is disposed inside the housing 4, and the filter assembly and the liquid separator body 32 are both disposed in the liquid separator shell 3. The filter assembly is disposed close to the air inlet tube 41.

[0088] A straight pipe 42 is also provided inside the housing 4. One end of the straight pipe 42 is connected to the exhaust pipe 43, and the other end extends through the liquid separating body 32 to one side of the support 2. A connecting pipe 23 is provided on one side of the filter screen 22. The axis of the connecting pipe 23 coincides with the axis of the straight pipe 42, and the inner diameter of the connecting pipe 23 is larger than the outer diameter of the straight pipe 42. The distance from the side of the support 2 near the straight pipe 42 to the bottom of the connecting pipe 23 is L1, and the length of the straight pipe 42 is L2, where L1 < L2.

[0089] It should be noted that the side of the bracket 2 closest to the straight tube 42 in this application refers to... Figure 6 The right side of the bracket 2 in the figure, and the bottom of the connecting tube 23 refers to the connection between the connecting tube 23 and the connection point.

[0090] A connecting pipe 23 is provided on one side of the filter assembly, and the axis of the connecting pipe 23 coincides with the axis of the straight pipe 42. This design ensures that the refrigerant can smoothly enter the connecting pipe 23 after flowing through the filter assembly, and further enter other parts of the refrigeration system. At the same time, the inner diameter of the connecting pipe 23 is larger than the outer diameter of the straight pipe 42. This size design not only facilitates the installation and fixation of the straight pipe 42, but also ensures unobstructed flow of refrigerant within the connecting pipe 23.

[0091] Furthermore, the distance L1 from the side of the bracket 2 closest to the straight pipe 42 to the bottom of the connecting pipe 23 is less than the length L2 of the straight pipe 42. This dimensional relationship ensures that the straight pipe 42 can completely penetrate the liquid distribution body 32 and extend to one side of the bracket 2, while ensuring an effective connection between the connecting pipe 23 and the straight pipe 42 and smooth flow of refrigerant.

[0092] During compressor operation, the gas-liquid mixture of refrigerant enters the housing 4 through the suction pipe 41 and is first separated into gas and liquid by the filter assembly. The separated gaseous refrigerant enters the upper chamber of the distributor through the pores of the filter assembly and flows along the straight pipe 42 to the discharge pipe 43 for discharge; while the liquid refrigerant flows along the outside of the filter 22 to the lower chamber of the distributor and is discharged or further processed through other means.

[0093] Thanks to its optimized filter assembly and distributor design, this compressor can achieve efficient separation of gas-liquid mixed refrigerant, improving the performance and stability of the refrigeration system.

[0094] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0095] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0096] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A screen assembly, characterized by The filter screen assembly comprises: a support (2) provided with a plurality of flow-through openings (21), and a filter screen (22) provided on the support (2) and located on one side of the flow-through openings (21); a baffle (1) fixed on one side of the support (2) and facing away from the filter screen (22), wherein the baffle (1) is provided with a flow guide structure (11) on the side facing away from the filter screen (22), and a plurality of flow-through holes (12) are further provided on the baffle (1).

2. The filter screen assembly according to claim 1, wherein: the flow guide structure (11) is arranged in the middle of the baffle (1), and the cross-sectional area of the flow guide structure (11) gradually increases from the side away from the filter screen (22) to the side close to the filter screen (22) along the axis direction of the baffle (1).

3. The filter screen assembly according to claim 2, wherein: the flow guide structure (11) is a hemisphere, a multi-rib or a circular truncated cone.

4. The filter screen assembly according to claim 2, wherein: a plurality of the flow-through holes (12) are arranged in a ring shape on the baffle (1) to form a flow guide ring, and a plurality of the flow guide rings are arranged on the baffle (1).

5. The filter screen assembly according to any one of claims 1-4, wherein: the support (2) is in the shape of a circular truncated cone, a plurality of the flow-through openings (21) are arranged on the top of the support (2), and the plurality of the flow-through openings (21) are uniformly distributed on the support (2) along the circumferential direction of the support (2).

6. The filter screen assembly according to claim 5, wherein: the filter screen (22) is adapted to the shape of the bottom of the support (2), and the surface of the filter screen (22) is in contact with the bottom surface of the support (2) when the filter screen (22) is installed on the support (2).

7. The filter screen assembly according to claim 5, wherein: the filter screen assembly is installed in a distributor housing (3), the sidewall of the support (2) is provided with a first clamping structure (24), the distributor housing (3) is provided with a second clamping structure (31), and the first clamping structure (24) and the second clamping structure (31) are clamped to each other.

8. A liquid separator characterized by: The filter screen assembly according to any one of claims 1-7.

9. A compressor characterized by: The distributor according to claim 8.

10. The compressor according to claim 9, wherein: the compressor comprises a housing (4) provided with a suction pipe (41) on one side and an exhaust pipe (43) on the opposite side; the housing (4) is provided with a distributor, and the distributor comprises a distributor housing (3), a filter screen assembly and a distributor main body (32), wherein the distributor housing (3) is arranged in the housing (4), the filter screen assembly and the distributor main body (32) are arranged in the distributor housing (3), and the filter screen assembly is arranged close to the suction pipe (41). The shell (4) is further provided with a straight pipe (42), one end of the straight pipe (42) is connected with the exhaust pipe (43), and the opposite end extends to one side of the support (2) through the distribution main body (32); one side of the filter screen (22) is provided with a connecting pipe (23), the axis of the connecting pipe (23) coincides with the axis of the straight pipe (42), and the inner diameter of the connecting pipe (23) is greater than the outer diameter of the straight pipe (42); the distance from the side of the support (2) close to the straight pipe (42) to the bottom of the connecting pipe (23) is L1, and the length of the straight pipe (42) is L2, wherein L1 < L2.

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