Filter assembly, pipeline module and assembling method therefor, and air conditioner

Abstract

The present application provides a filter assembly, a pipeline module and an assembling method therefor, and an air conditioner. The filter assembly is configured to be arranged in a fluid cavity of the pipeline assembly so as to filter a fluid flowing through the fluid cavity. The filter assembly comprises a supporting frame, a filter screen and a pressing strip; the supporting frame is configured to be fixedly connected to the cavity wall surface of the fluid cavity; the filter screen is sleeved on the supporting frame and comprises a filter main body and a connecting part which are connected, the connecting part surrounding the filter main body; the side of the pressing strip facing the supporting frame is connected to the supporting frame, and works in conjunction with the supporting frame to clamp and fix the connecting part.

Description

Filter assembly, pipeline module, assembly method thereof, and air conditioner

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 24, 2023, with application number 2023110792843 and invention name “Filter component, pipeline module, assembly method thereof, and air conditioner”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of air conditioners, and in particular to a filter assembly, a piping module, an assembly method thereof, and an air conditioner. Background Art

[0003] In the piping module of the air-conditioning indoor unit, a fluid cavity is provided for the circulation of refrigerant. However, since the refrigerant generally carries some impurities, for example, the welding slag generated when the copper pipes in the air-conditioning indoor unit are welded will flow along with the refrigerant. Therefore, a filter component is usually provided in the piping module to filter out the impurities.

[0004] However, most of the filter components in the exemplary technology are fixedly connected to a single support frame through a filter screen, and then fixedly connected to the inner wall of the fluid cavity through the support frame. However, after long-term use, the connection between the filter screen and the support frame will gradually loosen and the connection will not be firm, causing the filter screen to detach from the inner wall of the fluid cavity, and unable to achieve a good filtering effect.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a filter assembly, a pipeline module, an assembly method thereof, and an air conditioner, which can enhance the connection firmness of the connection between the support frame and the filter screen.

[0007] In a first aspect, an embodiment of the present application provides a filter assembly configured to be disposed in a fluid cavity of a pipeline assembly to filter fluid flowing through the fluid cavity, comprising:

[0008] a support frame configured to be fixedly connected to a cavity wall surface of the fluid cavity;

[0009] A filter screen is sleeved on the support frame and includes a filter body and a connecting portion connected to each other, wherein the connecting portion is arranged around the filter body; and

[0010] The pressure strip has a side facing the support frame connected to the support frame, and cooperates with the support frame to clamp and fix the connecting portion.

[0011] Based on the filter assembly of the embodiment of the present application, the connection part of the filter net is clamped and fixed by adopting the cooperation between the support frame and the pressure strip. In this way, when the support frame is fixedly connected to the cavity wall of the fluid cavity of the pipeline assembly, even under long-term use, the pressure of the pressure strip can improve the connection firmness between the connection part of the filter net and the support frame, prevent the filter net from being disconnected from the support frame, and fail to filter impurities in the fluid. In this way, the service life of the filter assembly in the pipeline module can be extended to improve the user experience.

[0012] In some embodiments, the support frame includes a connecting body and a supporting portion connected to each other.

[0013] In some embodiments, a gap between the connecting body and a side of the pressure strip facing the connecting body is formed as a clamping space configured to clamp the connecting portion.

[0014] In some embodiments, the support portion is arched in a direction away from the connecting body;

[0015] In some embodiments, the filter body is sleeved on the support portion.

[0016] In some embodiments, the connection body includes four connection plates connected end to end in sequence.

[0017] In some embodiments, the four connecting plates include two first connecting plates that are opposite to each other in the length direction of the support frame.

[0018] In some embodiments, the shape of the first connecting plate is adapted to the contour of the fluid cavity, and the plate surface of the first connecting plate facing away from the connecting portion is adaptively connected to the cavity wall surface of the fluid cavity.

[0019] In some embodiments, the four connecting plates further include two second connecting plates that are opposite to each other in the width direction of the support frame.

[0020] In some embodiments, the second connecting plate is connected between two of the first connecting plates;

[0021] In some embodiments, the profile of the second connecting plate includes an outer edge extending in the axial direction of the fluid cavity, and the contact between the outer edge and the cavity wall of the fluid cavity is line contact.

[0022] In some embodiments, the width of the first connecting plate is greater than or equal to 4 mm;

[0023] And / or, the width of the second connecting plate is greater than or equal to 4 mm;

[0024] And / or, the width of the layer is greater than or equal to 4 mm.

[0025] In some embodiments, the support portion includes at least two support bars and a reinforcement bar.

[0026] In some embodiments, the at least two support bars are spaced apart in the width direction of the support frame.

[0027] In some embodiments, each of the support bars is connected to the connection body, the reinforcement bar is connected between two adjacent support bars, and the at least two support bars and the reinforcement bar jointly support the filter body.

[0028] In some embodiments, each of the support bars includes a first support segment and a second support segment connected to each other.

[0029] In some embodiments, the first support segment and the second support segment are arranged at an angle, and both are connected to the connecting body;

[0030] In some embodiments, the filter body includes a bottom wall and a side wall arranged around an outer edge of the bottom wall.

[0031] In some embodiments, the first support segment supports the bottom wall, and the second support segment supports the side wall.

[0032] In some embodiments, the shape of the pressure strip is adapted to the contour shape of the connecting portion, and the side of the pressure strip facing the support frame is adaptively connected to the connecting portion.

[0033] In the second aspect, an embodiment of the present application provides a pipeline module, which includes a pipeline assembly and a filter assembly as described above. The interior of the pipeline assembly is formed as the fluid cavity, and the support frame is fixedly connected to the cavity wall of the fluid cavity to filter the fluid flowing through the fluid cavity.

[0034] In some embodiments, the pipe assembly is provided with two openings respectively connected to the fluid chamber.

[0035] In some embodiments, the pipe assembly includes a limiting protrusion adjacent to the opening.

[0036] In some embodiments, the limiting protrusion and the support frame are engaged in a stoppering operation to limit the installation position of the filter assembly.

[0037] In some embodiments, the pipe assembly includes two cover plates.

[0038] In some embodiments, the two cover plates are connected to each other and enclose the fluid chamber.

[0039] In some embodiments, the pipe assembly is provided with two openings respectively connected to the fluid chamber.

[0040] In some embodiments, the two openings are located on the same side of the pipe assembly.

[0041] In a third aspect, an embodiment of the present application provides a method for assembling a pipeline module, comprising the following steps:

[0042] Provide a support frame and a filter screen, and sleeve the filter body of the filter screen on the support frame;

[0043] Providing a pressure strip, and clamping the connection part of the filter screen by cooperating with the pressure strip and the support frame;

[0044] Welding and sealing the connecting portion, the support frame and the pressure strip;

[0045] Two cover plates of the pipeline assembly are provided, a support frame is welded to the inner wall surface of one of the cover plates, and the other cover plate is covered and connected to the cover plate welded with the support frame to obtain a pipeline module.

[0046] Based on the assembly method of the pipeline module of the embodiment of the present application, the filter screen is clamped by the pressure strip and the support frame, and the three are welded and fixed, so that the pressure of the pressure strip on the filter screen ensures the firmness of the connection between the support frame and the filter screen, and the welding connection form can improve the connection strength between the filter screen and the support frame, so that during long-term use, when high-temperature, high-pressure and high-speed fluid flows through the filter assembly, the filter screen and the support frame will not easily separate, thereby ensuring the filtering effect and extending the service life of the filter assembly in the pipeline assembly.

[0047] In some embodiments, the support frame includes a connecting body, and the connecting body includes two first connecting plates and two second connecting plates;

[0048] The steps of welding and sealing the connecting portion, the support frame and the pressure strip are specifically as follows:

[0049] spot-welding the connecting portion, the first connecting plate, and the pressure strip;

[0050] The connecting portion, the second connecting plate and the pressure strip are spot-welded to ensure that the connecting portion is sealed and fixedly connected to the support frame.

[0051] In some embodiments, the support frame includes a connecting body, the connecting body including two first connecting plates and two second connecting plates, the shape of the first connecting plates is adapted to the contour of the fluid cavity, and the contour of the second connecting plates includes an outer edge;

[0052] The step of welding the support frame to the inner wall surface of one of the cover plates is specifically as follows:

[0053] Spot-welding the first connecting plate to the inner wall surface of one of the cover plates;

[0054] spot-welding the outer edge of the second connecting plate to the inner wall of the cover plate;

[0055] The pre-connected connection body and the cover plate are sent into a welding furnace for welding.

[0056] In some embodiments, the step of sending the pre-connected connection body and the cover plate into a welding furnace for welding is specifically as follows:

[0057] Filling solder into the gap between the first connecting plate and the cover plate and the gap between the second connecting plate and the cover plate respectively;

[0058] Provide a welding pressure head and continuously press the welding pressure head against the pressure strip;

[0059] The connecting body, the cover plate connected with the support frame and the welding pressure head are sent into the welding furnace for welding.

[0060] In a fourth aspect, an embodiment of the present application provides an air conditioner, which includes a refrigerant circulation system, and the refrigerant circulation system has the pipeline module as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0062] FIG1 is a schematic structural diagram of an embodiment of a pipeline module of the present application;

[0063] FIG2 is a schematic diagram of the exploded structure of the pipeline module in FIG1 from one perspective;

[0064] FIG3 is a schematic diagram of the exploded structure of the pipeline module in FIG1 from another perspective;

[0065] FIG4 is a cross-sectional schematic diagram of the pipeline module in FIG1 ;

[0066] FIG5 is a partial enlarged view of point A in FIG4 ;

[0067] FIG6 is a schematic diagram of the exploded structure of the filter assembly of the pipeline module in FIG2 ;

[0068] FIG7 is a schematic flow chart of a first embodiment of a method for assembling a pipeline module of the present application;

[0069] FIG8 is a flow chart of a second embodiment of a method for assembling a pipeline module according to the present application;

[0070] FIG9 is a schematic flow chart of a third embodiment of a method for assembling a pipeline module of the present application;

[0071] FIG10 is a flow chart of a fourth embodiment of the method for assembling a pipeline module of the present application.

[0072] Description of Figure Numbers:

[0073] 100. Filter assembly; 10. Support frame; 11. Connecting body; 111. First connecting plate; 113. Second connecting plate; 1131. Outer edge; 115. Connecting plate; 13. Support portion; 131. Support bar; 1311. First supporting section; 1313. Second supporting section; 133. Reinforcement bar; 30. Filter screen; 31. Filter body; 311. Bottom wall; 313. Side wall; 33. Connecting portion; 50. Pressing strip; 70. Clamping space; 300. Pipeline module; 310. Pipeline assembly; 310a. Fluid cavity; 310b. Opening; 320. Cover plate; 330. Limiting protrusion.

[0074] The purpose, features and advantages of this application will be further explained with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0075] In order to make the purpose, technical solutions and advantages of this application clearer, the following part will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0076] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0077] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0078] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0079] In the piping module of the air-conditioning indoor unit, a fluid cavity is provided for the circulation of refrigerant. However, since the refrigerant generally carries some impurities, for example, the welding slag generated when the copper pipes in the air-conditioning indoor unit are welded will flow with the refrigerant. Therefore, a filter component is usually provided in the piping module to filter the impurities to prevent the impurities from entering the compressor and affecting the compressor.

[0080] However, most of the filter components in the exemplary technology are fixedly connected to a single support frame through a filter screen, and then fixedly connected to the inner wall of the fluid cavity through the support frame. However, after long-term use, the connection between the filter screen and the support frame will gradually loosen and the connection will not be firm, causing the filter screen to detach from the inner wall of the fluid cavity, and unable to achieve a good filtering effect.

[0081] To solve the above problems, please refer to Figures 1 to 3. One aspect of the present application proposes an air conditioner (not shown in the figures). In an embodiment of the present application, the air conditioner includes a connected air conditioner indoor unit (not shown in the figures) and an air conditioner outdoor unit (not shown in the figures), wherein the air conditioner indoor unit and the air conditioner outdoor unit may both include a refrigerant circulation system (not shown in the figures), and the refrigerant circulation system has a pipeline module 300.

[0082] Therefore, the present application also proposes a pipeline module 300. In this embodiment, the pipeline module 300 includes a pipeline assembly 310 and a filter assembly 100. The interior of the pipeline assembly 310 is formed as a fluid cavity 310a, and the support assembly is fixedly connected to the cavity wall of the fluid cavity 310a to filter the fluid flowing through the fluid cavity 310a.

[0083] In some technologies, a cavity (ie, the fluid cavity 310a in the embodiment of the present application) is formed inside the pipeline module 300 to replace the traditional pipeline. This can reduce the number of pipelines and reduce pipeline vibration and pipeline wear.

[0084] The pipeline assembly 310 can include two cover plates 320, which are covered and connected with each other, and the above-mentioned fluid cavity 310a is formed inside. The two cover plates 320 under the split structure can be easily assembled with the filter assembly 100 through one cover plate 320, and then the assembled cover plate 320 is covered with another cover plate 320, which is convenient for assembly in the workshop and improves assembly efficiency.

[0085] The cover plate 320 of the pipe structure further defines two openings 310b, each connected to the fluid cavity 310a. In other words, fluid (e.g., refrigerant) can enter through one opening 310b, flow through the fluid cavity 310a, and then exit through the other opening 310b. In this case, the installation position of the filter assembly 100 may include, but is not limited to, the following two types:

[0086] The first installation position is to place the filter assembly 100 at the opening 310b. When the fluid flows in or out of the opening 310b, the filter assembly 100 can filter the impurities accompanying the fluid.

[0087] The second installation position is to place the filter assembly 100 in the fluid cavity 310a and between the two openings 310b. In this case, when the fluid flows in the fluid cavity 310a, the filter assembly 100 can filter impurities accompanying the fluid.

[0088] The two openings 310b are located on the same side of the pipe assembly 310, that is, the two openings 310b can be opened on the same cover plate 320 of the pipe assembly 310. During the actual assembly process, when the two pipes are connected to the two corresponding openings 310b, they can be assembled on the same cover plate 320, which facilitates operation. Of course, in other structural forms, the two openings 310b can be located on opposite sides of the pipe assembly 310, that is, the two openings 310b can be opened on different cover plates 320 of the pipe assembly 310. This is not limited to this. The specific opening location of the opening 310b can also be selected based on the location of the mounting components to which the pipes are actually connected.

[0089] In order to maintain the stable filtering performance of the filter assembly 100 during the long-term use of the pipeline module 300, the present application proposes a filter assembly 100 on the other hand, which is configured to be arranged in the fluid cavity 310a of the pipeline assembly 310 to filter the fluid flowing through the fluid cavity 310a. In an embodiment of the present application, the filter assembly 100 includes a support frame 10, a filter mesh 30 and a pressure strip 50.

[0090] The support frame 10 can be a frame structure, and the support frame 10 can be made of metal, such as pure metal or alloy. Specifically, the alloy can be aluminum alloy, stainless steel, etc. In actual operation, the fluid will have a certain impact when flowing through the filter assembly 100. Therefore, it is necessary to ensure that the support frame 10 itself has a certain strength. When it is made of alloy material, the support frame 10 itself has better strength to avoid deformation under the impact of the fluid. At the same time, during the processing, the support frame 10 can also be manufactured by an integrated stamping process to improve production efficiency. Of course, the support frame 10 can also be made of plastic and processed by an integrated injection molding process, which is not limited to this. The support frame 10 may be formed with an opening to allow fluid to flow through the opening. The support frame 10 may be configured to be fixedly connected to the wall of the fluid chamber 310a. The fixed connection may be a welding connection or an adhesive connection, or a threaded connection using fasteners. Considering that the fluid may be high-temperature, high-pressure, and high-speed, a welding connection can ensure the connection strength between the support frame 10 and the wall of the fluid chamber 310a, so that the support frame 10 will not easily fall off. For example, welding or brazing can be used. When the assembly position needs to be more accurate, it can be pre-fixed by resistance spot welding to facilitate subsequent processing. When a detachable connection such as a threaded connection is used, either the support frame 10 or the cover plate 320 of the pipe assembly 310 can be removed and replaced, facilitating maintenance and repair.

[0091] The filter screen 30 is mounted on the support frame 10 and has an internal filter cavity with an opening. The opening is connected to the opening of the support frame 10, so that the fluid can pass through the opening of the support frame 10 and enter the filter cavity through the opening of the filter screen 30, thereby filtering impurities in the fluid. The shape of the opening of the filter cavity can be adapted to the shape of the opening 310b. For example, when the filter screen 30 is arranged at the opening 310b, and when the opening 310b is circular, the opening of the filter screen 30 can be adapted to be circular. Of course, the cross-sectional area of ​​the opening of the filter screen 30 can be larger than the cross-sectional area of ​​the opening 310b. In this way, the opening of the filter screen 30 can be adapted to the shape of the opening 310b or not, and this is not limited to this.

[0092] Since the fluid can be high-temperature, high-pressure, and high-speed, the filter 30 can be made of metal. For example, the filter 30 can be a woven stainless steel filter. This ensures that the filter 30 itself has a certain strength while filtering out impurities. Of course, when the fluid is low-temperature, high-pressure, and low-speed, the filter 30 can also be made of plastic, without limitation.

[0093] The filter screen 30 includes a filter body 31 and a connecting portion 33 connected to each other. The connecting portion 33 is arranged around the filter body 31, that is, the filter body 31 and the connecting portion 33 are both mounted on the support frame 10, wherein the interior of the filter body 31 is formed into the above-mentioned filter cavity, and the connecting portion 33 is configured to be connected to the support frame 10. When the filter screen 30 is made of stainless steel, the filter screen 30 can also be processed and manufactured by an integrated stamping molding method, which is convenient for processing and production, and ensures the connection strength between the filter body 31 and the connecting portion 33. The filter body 31 includes a bottom wall 311 and a side wall 313 arranged around the outer edge of the bottom wall 311, that is, the bottom wall 311 and the side wall 313 enclose the above-mentioned filter cavity, and filter holes connected to the filter cavity are opened on the bottom wall 311 and the side wall 313 to achieve the screening of fluid and impurities through the filter holes.

[0094] The side of the pressure strip 50 facing the support frame 10 is connected to the support frame 10, and cooperates with the support frame 10 to clamp and fix the connecting part 33. That is, under the pressure of the pressure strip 50, the connecting part 33 of the filter screen 30 will be tightly attached to the support frame 10. Through the cooperation between the pressure strip 50 and the support frame 10, the connecting part 33 of the filter screen 30 is clamped and fixed.

[0095] The shape of the bead 50 matches the contour of the connecting portion 33, and the side of the bead 50 facing the support frame 10 is adapted to connect with the connecting portion 33. This arrangement allows the connecting portion 33 of the filter 30 to be pressed against the support frame 10 to clamp the filter 30, increasing the contact area between the bead 50 and the connecting portion 33, making the connection between the bead 50 and the connecting portion 33 more secure and further improving the securing effect on the filter 30. The bead 50 can be made of metal, such as stainless steel, and can be stamped into a shape that matches the contour of the connecting portion 33, making it easier to manufacture.

[0096] Exemplarily, when the support frame 10, the filter screen 30 and the pressure strip 50 are all made of metal, for example, stainless steel, the three can be fixedly connected by welding, for example, by resistance welding, using the resistance heat generated by the current passing through the contact points of the three as a heat source to heat the local connection parts of the three, and at the same time pressurize the welding, and no filler metal is required, the productivity is high, the deformation of the weld is small, and the degree of automated processing in the workshop is high.

[0097] The technical solution of the present application realizes the clamping and fixation of the connection part 33 of the filter screen 30 by adopting the cooperation between the support frame 10 and the pressure strip 50. In this way, when the support frame 10 is fixedly connected to the cavity wall of the fluid cavity 310a of the pipeline assembly 310, even under long-term use, the pressure of the pressure strip 50 can improve the connection firmness between the connection part 33 of the filter screen 30 and the support frame 10, prevent the filter screen 30 from being disconnected from the support frame 10, and fail to filter impurities in the fluid. In this way, the service life of the filter assembly 100 in the pipeline module 300 can be extended to improve the user experience.

[0098] In one embodiment, referring to Figures 4 to 6 , the support frame 10 includes a connecting body 11 and a supporting portion 13. A gap between the connecting body 11 and the side of the pressure strip 50 facing the connecting body 11 forms a clamping space 70 configured to clamp the connecting portion 33. The connecting portion 33 of the filter 30 is located within the clamping space 70, with opposite sides of the connecting portion 33 fixedly connected to the connecting body 11 and the pressure strip 50, respectively, thereby clamping and securing the connecting portion 33.

[0099] The support portion 13 arches in a direction away from the connecting body 11, wherein the filter body 31 is sleeved on the support portion 13. During actual use, the filter body 31 needs to be propped up so that the filter cavity of the filter body 31 has a certain capacity to filter and contain impurities in the fluid. For example, when the support portion 13 is arched, the support portion 13 can support the bottom wall 311 and / or side walls 313 of the filter body 31, allowing the bottom wall 311 and / or side walls 313 of the filter body 31 to be supported by the support portion 13, thereby ensuring a certain capacity of the filter cavity.

[0100] In one structural form, referring to FIG6 , the connecting body 11 includes four connecting plates 115 connected end to end. The four connecting plates 115 include two first connecting plates 111 that oppose each other in the length direction of the support frame 10 and two second connecting plates 113 that oppose each other in the width direction of the support frame 10. The second connecting plates 113 are connected between the two first connecting plates 111. In other words, the four connecting plates 115 are configured to cooperate with the holding strip 50 to clamp and secure the connecting portion 33 of the filter 30.

[0101] The shape of the first connecting plate 111 is adapted to the contour of the fluid cavity 310a, and the surface of the first connecting plate 111 facing away from the connecting portion 33 is adaptively connected to the wall surface of the fluid cavity 310a. For example, when the wall surface of the fluid cavity 310a is an arcuate surface, the first connecting plate 111 can be configured in an arc shape so as to conform to the wall surface of the fluid cavity 310a through the arc structure to achieve an adaptive connection. This can increase the contact area between the first connecting plate 111 and the wall surface of the fluid cavity 310a, thereby enhancing the connection strength between the two. Even in actual use, when facing the impact of high temperature, high pressure, and high velocity fluid, the first connecting portion 33 and the wall surface of the fluid cavity 310a will not easily separate, thereby extending the service life of the filter assembly 100.

[0102] The profile of the second connecting plate 113 includes an outer edge 1131 extending in the axial direction of the fluid cavity 310a. The outer edge 1131 makes line contact with the cavity wall of the fluid cavity 310a. During the actual assembly process, for example, after the first connecting plate 111 is first welded to the cavity wall of the fluid cavity 310a, the second connecting plate 113 may be affected by the high temperature during the welding process of the first connecting plate 111, causing a certain degree of deformation. At this time, the outer edge 1131 of the second connecting plate 113 is less deformed than the second connecting plate 113 as a whole. Therefore, the outer edge 1131 of the second connecting plate 113 makes line contact with the cavity wall of the fluid cavity 310a during welding, which facilitates the welding of the second connecting plate 113 to the cavity wall of the fluid cavity 310a. The line contact welding can also appropriately reduce the amount of solder used while ensuring sufficient connection strength, thereby reducing the assembly costs required by the workshop during the assembly process. It should be noted that the outer edge 1131 can be in a straight line, a curve, a wave, etc., and this application does not limit this.

[0103] In order to ensure the secure connection between the connecting body 11 of the support frame 10 and the connecting portion 33 of the filter screen 30, in one embodiment, the width of the first connecting plate 111 is greater than or equal to 4 mm, the width of the second connecting plate 113 is greater than or equal to 4 mm, and the width of the bead 50 is greater than or equal to 4 mm. In this way, a certain connection area can be provided between the first connecting plate 111, the connecting portion 33, and the bead 50, and a certain connection area can be provided between the second connecting plate 113, the connecting portion 33, and the bead 50, so that the connecting body 11 can have a good secure connection when connected to the connecting portion 33. In the actual assembly process, when resistance welding is used, a resistance welding head is required to press the first connecting plate 111 and the second connecting plate of the connecting body 11 of the support frame 10, as well as the bead 50. Since the end face width of the resistance welding head cannot be less than 4 mm, it is convenient to select a resistance welding head when the widths of the first connecting plate 111, the second connecting plate 113, and the bead 50 are all greater than 4 mm. Exemplarily, the width value of the first connecting plate 111 can be 4 mm, 5 mm, 6 mm, 7 mm or 8 mm, etc.; the width value of the second connecting plate 113 can be 4 mm, 5 mm, 6 mm, 7 mm or 8 mm, etc.; the width value of the pressure strip 50 can be 4 mm, 5 mm, 6 mm, 7 mm or 8 mm, etc., and this application does not limit this.

[0104] The above content describes the advantage of the filter assembly 100 of the present application in that the filter screen 30 is firmly connected to the support frame 10 from the perspective of the coordination between the support frame 10, the filter screen 30, and the pressure strip 50. On this basis, in order to further enhance the degree of expansion of the filter body 31 of the filter screen 30, please refer to FIG6 . The present application may further include the support portion 13 comprising at least two support bars 131 and a reinforcement bar 133, wherein the at least two support bars 131 are arranged at intervals in the width direction of the support frame 10, and each support bar 131 is connected to the connecting body 11, and the reinforcement bar 133 is connected between two adjacent support bars 131. The at least two support bars 131 and the reinforcement bar 133 jointly support the filter body 31.

[0105] Because the support bars 131 are long and arched away from the connecting body 11, they are prone to deformation due to their own insufficient strength. Therefore, a reinforcement bar 133 is connected between two adjacent support bars 131. This allows the reinforcement bar 133 to act as a reinforcing rib, increasing the strength of the two adjacent support bars 131. When the support bars 131 have a certain strength, they can provide good support for the filter body 31, allowing the filter body 31 to be well supported by the support portion 13. At the same time, the reinforcement bar 133 can also support the bottom wall 311 of the filter body 31, further enhancing the support effect of the filter body 31.

[0106] In the exemplary embodiment shown in the figure, each support bar 131 includes a first support segment 1311 and a second support segment 1313 connected to each other. The first support segment 1311 and the second support segment 1313 are arranged at an angle and are respectively connected to the connecting body 11. The first support segment 1311 supports the bottom wall 311, and the second support segment 1313 supports the side wall 313. With this arrangement, the first support segment 1311 and the second support segment 1313 can respectively support the bottom wall 311 and the side wall 313, thereby improving the overall support for the filter body 31 of the filter screen 30, allowing the filter cavity of the filter body 31 to maintain a large capacity and effectively contain filtered impurities.

[0107] In one embodiment, the pipe assembly 310 includes a limiting protrusion 330 adjacent to the opening 310b. The limiting protrusion 330 engages with the connecting body 11 of the support frame 10 to limit the installation position of the filter assembly 100. During the actual assembly process, in order to facilitate the staff to position and install the filter mesh 30 when it is positioned at the opening 310b, the limiting protrusion 330 is provided to limit the installation position of the filter assembly 100. It can also serve as a reminder to the staff to a certain extent to improve the accuracy of the final installation of the filter assembly 100. In the exemplary embodiment shown in the figure, the number of limiting protrusions 330 can be one. By a single limiting protrusion 330 engaging with the support frame 10 to stop, the installation position of the filter assembly 100 is limited, and it can be applicable to filter assemblies 100 of different sizes. Of course, the number of the limiting protrusions 330 can also be configured as multiple, for example, when there are two, the two limiting protrusions 330 can respectively stop the opposite sides of the connecting body 11 of the support frame 10, and can also limit the installation position of the filter assembly 100, which is not limited.

[0108] Based on the above-mentioned pipeline module 300, the present application further proposes an assembly method of the pipeline module 300. Referring to FIG. 7 , the assembly method of the pipeline module 300 includes the following steps:

[0109] Step S10: Provide a support frame 10 and a filter screen 30, and sleeve the filter body 31 of the filter screen 30 onto the support frame 10. The filter body 31 of the filter screen 30 may be sleeved onto the support portion 13 of the support frame 10, and the connection portion 33 of the filter screen 30 is fitted to the connection body 11 of the support frame 10.

[0110] Step S20: Providing a holding strip 50, and clamping the connection portion 33 of the filter 30 by cooperating with the holding strip 50 and the support frame 10. In this step, the connection portion 33 of the filter 30 can be pre-fixed by the clamping cooperation between the holding strip 50 and the support frame 10, ensuring the relative position relationship between the three, facilitating subsequent processing.

[0111] Step S30: Weld and seal the connection portion 33, the support frame 10, and the pressure strip 50. By welding the connection portion 33, the support frame 10, and the pressure strip 50, a fixed connection is achieved, and the sealing between the connection body 11 of the support frame 10 and the connection portion 33 is ensured, preventing fluid containing impurities from flowing into the fluid cavity 310a through the gap between the connection body 11 and the connection portion 33.

[0112] Step S40: Provide two cover plates 320 of the pipeline assembly 310, weld the support frame 10 to the inner wall of one of the cover plates 320, and then cover and connect the other cover plate 320 to the cover plate 320 to form the pipeline module 300. The connecting body 11 of the support frame 10 is welded to the inner wall of the cover plate 320, thereby welding the connecting body 11 to the wall of the fluid chamber 310a. After welding is completed, the two cover plates 320 are then covered to form the desired pipeline module 300.

[0113] The technical solution of the present application adopts the pressure strip 50 and the support frame 10 to clamp the filter screen 30, and then realizes welding and fixing of the three, so that under the pressure of the pressure strip 50 on the filter screen 30, the connection firmness of the support frame 10 and the filter screen 30 is guaranteed, and the connection strength of the filter screen 30 and the support frame 10 can be improved through the welding connection form, so that during long-term use, when high-temperature, high-pressure and high-speed fluid flows through the filter component 100, the filter screen 30 and the support frame 10 will not easily separate, thereby ensuring the filtering effect and extending the service life of the filter component 100 in the pipeline component 310.

[0114] In one embodiment, referring to FIG. 8 , the step S30 of welding and sealing the connection portion 33 , the support frame 10 , and the pressure strip 50 is specifically as follows:

[0115] Step S31: Spot-weld the connecting portion 33, the first connecting plate 111, and the pressure strip 50. In this step, multiple spot welding can be performed, and the spacing between adjacent welds can range from 6 mm to 8 mm. This reduces solder usage and reduces costs while ensuring the stability of the spot weld connection. For example, the spacing between adjacent welds can be 6 mm, 6.5 mm, 7 mm, 7.5 mm, or 8 mm, etc., but this is not limited to this.

[0116] Step S32: Spot-weld the connection portion 33, the second connection plate 113, and the pressure strip 50 to ensure a sealed and fixed connection between the connection portion 33 and the support frame 10. Similarly, in this step, multiple spot welding can be performed, and the spacing between adjacent welds can range from 6 mm to 8 mm. This reduces the amount of solder used and reduces costs while ensuring the stability of the spot welding connection. Exemplarily, the spacing between adjacent welds can be 6 mm, 6.5 mm, 7 mm, 7.5 mm, or 8 mm, etc., without limitation.

[0117] Among them, the steps of step S31 and step S32 can be interchanged, for example, the connection portion 33, the second connection plate 113 and the bead 50 are first spot-welded, and then the connection portion 33, the first connection plate 111 and the bead 50 are spot-welded. Of course, it is also possible to first spot-weld the connection portion 33, a first connection plate 111 and the bead 50 in the order of circumferential spot welding, then spot-weld the connection portion 33, a second connection plate 113 and the bead 50, then spot-weld the connection portion 33, another first connection plate 111 and the bead 50, and finally spot-weld the connection portion 33, another second connection plate 113 and the bead 50, without limitation to this.

[0118] In this way, by spot welding the connection part 33, the first connection plate 111 and the pressure strip 50, and spot welding the connection part 33, the second connection plate 113 and the pressure strip 50, the pressure strip 50 and the support frame 10 can be clamped and fixed to the support frame 10, which is convenient to operate and has a good connection effect.

[0119] In one embodiment, referring to FIG. 9 , the steps of welding the support frame 10 to the inner wall surface of one of the cover plates 320 are as follows:

[0120] Step S41: Spot-weld the first connecting plate 111 to the inner wall of one of the cover plates 320. In this step, the first connecting plate 111 that matches the inner wall of the cover plate 320 (the wall of the fluid chamber 310a) can be spot-welded to achieve a preliminary spot-weld connection, thereby achieving the first step of pre-connection between the support frame 10 and the inner wall of the cover plate 320.

[0121] Step S42: spot-weld the outer edge 1131 of the second connecting plate 113 to the inner wall of the cover plate 320. In this step, the outer edge 1131 of the second connecting plate 113 that is in line contact with the inner wall of the cover plate 320 (the wall of the fluid chamber 310a) can be spot-welded to achieve a complete pre-connection between the support frame 10 and the inner wall of the cover plate 320. When the first connecting plate 111 is welded, the high temperature generated during the welding process will cause a certain degree of deformation to the second connecting plate 113. However, when the outer edge 1131 is welded to the inner wall of the cover plate 320 by line contact, the gap between the outer edge 1131 and the inner wall of the cover plate 320 will be smaller than when the plate surface of the second connecting plate 113 is welded to the inner wall of the cover plate 320 (e.g., the curved surface), so as to facilitate processing and welding.

[0122] Step S43: sending the pre-connected connection body 11 and the cover plate 320 into a welding furnace for welding. In this step, the connection body 11 and the cover plate 320 may be sent into a welding furnace (such as a vacuum furnace or a tunnel furnace) for final fixed welding.

[0123] Among them, when the welding furnace is a vacuum furnace, it has the advantage of making the welding part heated more evenly. The vacuum furnace has excellent heat transfer performance, which can achieve constant heating, maintain uniform temperature, and make the welding part fit tightly, greatly improving welding efficiency. In addition, the vacuum furnace can help better control the thermal conductivity of the workpiece, so that the solder is evenly distributed. When the welding furnace is a tunnel furnace, the tunnel furnace has two tunnel openings, so that the connecting body 11 and the cover plate 320 can enter from one tunnel opening for welding and exit from the other tunnel opening after processing is completed, realizing an automated welding process.

[0124] Further, referring to FIG. 10 , the step S43 of sending the pre-connected connection body 11 and the cover plate 320 into a welding furnace for welding is specifically as follows:

[0125] Step S431: Solder is filled into the gap between the first connecting plate 111 and the cover plate 320 and the gap between the second connecting plate 113 and the cover plate 320. In this step, solder paste may be applied to the gap between the first connecting plate 111 and the cover plate 320 and the gap between the second connecting plate 113 and the cover plate 320.

[0126] Step S432: A welding pressure head is provided and continuously pressed against the holding strip 50. Since the second connecting plate 113 itself cannot be processed with perfect precision during the production process, such as the stamping process, the welding pressure head is pressed against the holding strip 50 to shorten the distance between the second connecting plate 113 and the inner wall surface of the cover plate 320, thereby ensuring that the second connecting plate 113 and the inner wall surface of the cover plate 320 are welded.

[0127] Step S433: The connecting body 11, the cover plate 320 connected to the support frame 10, and the welding pressure head are placed in a welding furnace for welding. The welding pressure head can be made of ceramic or graphite to ensure high-temperature resistance. This allows the welding pressure head to be placed in the welding furnace along with the filter assembly 100 and the pipe assembly 310. The welding pressure head maintains pressure on the pressure strip 50 during the welding process, thereby improving the final welding effect and the success rate of the production process.

[0128] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0129] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A filter assembly configured to be disposed in a fluid cavity of a pipeline assembly to filter a fluid flowing through the fluid cavity, wherein: include: A support frame, configured to be fixedly connected to a cavity wall surface of the fluid cavity; A filter screen is sleeved on the support frame and comprises a filter body and a connecting portion connected to each other, wherein the connecting portion is arranged around the filter body; and The pressure strip has a side facing the support frame connected to the support frame, and cooperates with the support frame to clamp and fix the connecting portion.

2. The filter assembly according to claim 1, wherein: The support frame comprises a connecting body and a supporting portion connected to each other, a gap between the connecting body and a side of the pressure strip facing the connecting body forms a clamping space configured to clamp the connecting portion, and the supporting portion arches in a direction away from the connecting body; Wherein, the filter body is sleeved on the support part.

3. The filter assembly according to claim 2, wherein: The connecting body comprises four connecting plates connected end to end in sequence, and the four connecting plates comprise two first connecting plates which are opposite to each other in the length direction of the supporting frame; The shape of the first connecting plate is adapted to the contour shape of the fluid cavity, and the plate surface of the first connecting plate facing away from the connecting portion is adaptively connected to the cavity wall surface of the fluid cavity.

4. The filter assembly according to claim 3, wherein: The four connecting plates further include two second connecting plates opposite to each other in the width direction of the supporting frame, wherein the second connecting plates are connected between the two first connecting plates; The profile of the second connecting plate includes an outer edge extending in the axial direction of the fluid cavity, and the contact between the outer edge and the cavity wall surface of the fluid cavity is line contact.

5. The filter assembly according to claim 4, wherein: The width of the first connecting plate is greater than or equal to 4 mm; And / or, the width of the second connecting plate is greater than or equal to 4 mm; And / or, the width of the pressure strip is greater than or equal to 4 mm.

6. The filter assembly according to any one of claims 2 to 5, wherein: The support portion includes at least two support bars and a reinforcement bar. The at least two support bars are arranged at intervals in the width direction of the support frame, and each of the support bars is connected to the connecting body. The reinforcement bar is connected between two adjacent support bars. The at least two support bars and the reinforcement bar jointly support the filter body.

7. The filter assembly according to claim 6, wherein: Each of the support bars comprises a first support segment and a second support segment connected to each other, the first support segment and the second support segment are arranged at an angle, and both are connected to the connection body respectively; The filter body includes a bottom wall and a side wall arranged around the outer edge of the bottom wall, the first supporting section supports the bottom wall, and the second supporting section supports the side wall.

8. The filter assembly according to any one of claims 1 to 7, wherein: The shape of the pressure strip is adapted to the contour shape of the connecting portion, and the side of the pressure strip facing the supporting frame is adaptively connected to the connecting portion.

9. A pipeline module, wherein: It comprises a pipeline component and a filter component as described in any one of claims 1 to 8, the interior of the pipeline component is formed as the fluid cavity, and the support frame is fixedly connected to the cavity wall of the fluid cavity to filter the fluid flowing through the fluid cavity.

10. The pipeline module according to claim 9, wherein: The pipeline assembly is provided with two openings respectively connected to the fluid cavity; The pipeline assembly includes a limiting protrusion adjacent to the opening, and the limiting protrusion is engaged with the support frame to limit the installation position of the filter assembly.

11. The pipeline module according to claim 9 or 10, wherein: The pipeline assembly includes two cover plates, which are connected to each other and enclose the fluid cavity.

12. The pipeline module according to any one of claims 9 to 11, wherein: The pipeline assembly is provided with two openings respectively connected to the fluid cavity; Wherein, the two openings are located on the same side of the pipeline assembly.

13. A method for assembling a pipeline module, wherein: The following steps are involved: Provide a support frame and a filter screen, and sleeve the filter body of the filter screen on the support frame; Providing a pressure strip, and clamping the connection part of the filter screen through the cooperation between the pressure strip and the support frame; Welding and sealing the connection part, the support frame and the pressure strip; Two cover plates of the pipeline assembly are provided, a support frame is welded to the inner wall surface of one of the cover plates, and the other cover plate is covered and connected to the cover plate welded with the support frame to obtain a pipeline module.

14. The method for assembling a pipeline module according to claim 13, wherein: The support frame includes a connecting body, and the connecting body includes two first connecting plates and two second connecting plates; The steps of welding and sealing the connection part, the support frame and the pressure strip are specifically as follows: Spot welding the connecting portion, the first connecting plate and the pressure strip; The connecting portion, the second connecting plate and the pressure strip are spot-welded to ensure that the connecting portion is sealed and fixedly connected to the support frame.

15. The method for assembling a pipeline module according to claim 13 or 14, wherein: The support frame comprises a connection body, the connection body comprises two first connection plates and two second connection plates, the shape of the first connection plates is adapted to the contour shape of the fluid cavity, and the contour of the second connection plates comprises an outer edge; The step of welding the support frame to the inner wall surface of one of the cover plates is specifically as follows: Connecting the first connecting plate to the inner wall surface of one of the cover plates by spot welding; Spot-welding the outer edge of the second connecting plate to the inner wall surface of the cover plate; The pre-connected connection body and the cover plate are sent into a welding furnace for welding.

16. The method for assembling a pipeline module according to claim 15, wherein: The step of sending the pre-connected connection body and the cover plate into a welding furnace for welding is specifically as follows: Filling solder into the gap between the first connecting plate and the cover plate and the gap between the second connecting plate and the cover plate respectively; Provide a welding pressure head and continuously press the welding pressure head against the pressure strip; The connecting body, the cover plate connected with the supporting frame and the welding pressure head are sent into the welding furnace for welding.

17. An air conditioner, wherein: It comprises a refrigerant circulation system, wherein the refrigerant circulation system has a pipeline module as claimed in any one of claims 9 to 12.

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