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

Abstract

The invention discloses a filtering assembly, a pipeline module, an assembling method of the pipeline module and an air conditioner, the filtering assembly is used for being arranged in a fluid cavity of the pipeline module to filter fluid flowing through the fluid cavity, the filtering assembly comprises a supporting frame, a filtering net and a pressing strip, the supporting frame is used for being fixedly connected with the cavity wall face of the fluid cavity, the supporting frame is sleeved with the filtering net, and the pressing strip is arranged on the supporting frame; comprising a filtering main body and a connecting part which are connected, the connecting part is arranged around the filtering main body, the side, facing the supporting frame, of the pressing strip is connected with the supporting frame, and the pressing strip is matched with the supporting frame to clamp and fix the connecting part.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and in particular to a filter assembly, a pipeline module, an assembly method thereof, and an air conditioner. Background Art

[0002] 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.

[0003] However, most of the filter assemblies in the prior art are fixedly connected to a single support frame through a filter net, and then fixedly connected to the inner cavity wall of the fluid cavity through the support frame. However, after long-term use, the connection between the filter net and the support frame will gradually loosen, and the connection is not firm, causing the filter net to separate from the inner cavity wall of the fluid cavity, and unable to achieve a good filtering effect. Summary of the invention

[0004] 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 part between the support frame and the filter net.

[0005] In a first aspect, an embodiment of the present application provides a filter assembly, which is used to be arranged in a fluid cavity of a pipeline assembly to filter a fluid flowing through the fluid cavity, including:

[0006] A support frame, used for fixedly connecting with the cavity wall of the fluid cavity;

[0007] 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

[0008] 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.

[0009] 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 wall surface 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, and prevent the filter net from being disconnected from the support frame and failing 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.

[0010] In some embodiments, the support frame includes 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 is formed as a clamping space for clamping the connecting portion, and the supporting portion is arched in a direction away from the connecting body;

[0011] Wherein, the filter body is sleeved on the support part.

[0012] In some embodiments, the connection body includes four connection plates connected end to end, and the four connection plates include two first connection plates that are opposite to each other in the length direction of the support frame;

[0013] 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.

[0014] In some embodiments, the four connecting plates further include two second connecting plates opposite to each other in the width direction of the supporting frame, and the second connecting plates are connected between the two first connecting plates;

[0015] 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.

[0016] In some embodiments, the width of the first connecting plate is greater than or equal to 4 mm;

[0017] And / or, the width of the second connecting plate is greater than or equal to 4 mm;

[0018] And / or, the width of the pressure strip is greater than or equal to 4 mm.

[0019] In some embodiments, 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, and the at least two support bars and the reinforcement bar jointly support the filter body.

[0020] In some embodiments, each of the support bars includes 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;

[0021] 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.

[0022] 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 supporting frame is adaptively connected to the connecting portion.

[0023] 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.

[0024] In some embodiments, the pipe assembly is provided with two openings respectively connected to the fluid chamber;

[0025] 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.

[0026] In some embodiments, the pipeline assembly includes two cover plates, which are connected to each other and enclose the fluid cavity.

[0027] In some embodiments, the pipe assembly is provided with two openings respectively connected to the fluid chamber;

[0028] Wherein, the two openings are located on the same side of the pipeline assembly.

[0029] In a third aspect, an embodiment of the present application provides a method for assembling a pipeline module, comprising the following steps:

[0030] Provide a support frame and a filter screen, and sleeve the filter body of the filter screen on the support frame;

[0031] Providing a pressure strip, and clamping the connection part of the filter screen through the cooperation between the pressure strip and the support frame;

[0032] Welding and sealing the connection part, the support frame and the pressure strip;

[0033] 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.

[0034] Based on the assembly method of the pipeline module of the embodiment of the present application, the filter net 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 net can ensure the firmness of the connection between the support frame and the filter net, and the welding connection can improve the connection strength between the filter net and the support frame, so that during long-term use, when high-temperature, high-pressure and high-speed fluid flows through the filter component, the filter net and the support frame will not be easily separated, thereby ensuring the filtering effect and extending the service life of the filter component in the pipeline component.

[0035] In some embodiments, the support frame includes a connecting body, and the connecting body includes two first connecting plates and two second connecting plates;

[0036] The steps of welding and sealing the connection part, the support frame and the pressure strip are specifically as follows:

[0037] Spot welding the connecting portion, the first connecting plate and the pressure strip;

[0038] 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.

[0039] In some embodiments, the support frame includes a connection body, the connection body includes 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 includes an outer edge;

[0040] The step of welding the support frame to the inner wall surface of one of the cover plates is specifically as follows:

[0041] Connecting the first connecting plate to the inner wall surface of one of the cover plates by spot welding;

[0042] Spot-welding the outer edge of the second connecting plate to the inner wall surface of the cover plate;

[0043] The pre-connected connection body and the cover plate are sent into a welding furnace for welding.

[0044] 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:

[0045] 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;

[0046] Provide a welding pressure head and continuously press the welding pressure head against the pressure strip;

[0047] The connecting body, the cover plate connected with the supporting frame and the welding pressure head are sent into the welding furnace for welding.

[0048] 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

[0049] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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.

[0050] Figure 1 This is a structural schematic diagram of an embodiment of a pipeline module of the present application;

[0051] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the middle pipeline module from one perspective;

[0052] Figure 3 for Figure 1 Schematic diagram of the decomposed structure of the middle pipeline module from another perspective;

[0053] Figure 4 for Figure 1 A cross-sectional schematic diagram of the middle pipeline module;

[0054] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0055] Figure 6 for Figure 2 Schematic diagram of the exploded structure of the filter assembly of the middle pipeline module;

[0056] Figure 7 This is a flow chart of a first embodiment of an assembly method of a pipeline module of the present application;

[0057] Figure 8 This is a flow chart of a second embodiment of the method for assembling a pipeline module of the present application;

[0058] Fig. 9 This is a flow chart of a third embodiment of the method for assembling a pipeline module of the present application;

[0059] Fig.10 This is a flow chart of a fourth embodiment of the assembly method of the pipeline module of the present application.

[0060] Description of Figure Numbers:

[0061] 100, filter assembly; 10, support frame; 11, connecting body; 111, first connecting plate; 113, second connecting plate; 1131, outer edge; 13, supporting portion; 131, supporting bar; 1311, first supporting section; 1313, second supporting section; 133, reinforcing bar; 30, filter screen; 31, filter body; 311, bottom wall; 313, side wall; 33, connecting portion; 50, pressure bar; 300, pipeline module; 310, pipeline assembly; 310a, fluid cavity; 310b, opening; 320, cover plate; 330, limiting protrusion.

[0062] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0063] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0064] When the following description refers to the 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 only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0065] In the description of the present 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 the present application can be understood according to the specific circumstances. In addition, in the description of the present 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 objects associated before and after are in an "or" relationship.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0067] 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.

[0068] However, most of the filter assemblies in the prior art are fixedly connected to a single support frame through a filter net, and then fixedly connected to the inner cavity wall of the fluid cavity through the support frame. However, after long-term use, the connection between the filter net and the support frame will gradually loosen, and the connection is not firm, causing the filter net to separate from the inner cavity wall of the fluid cavity, and unable to achieve a good filtering effect.

[0069] To solve the above problems, please refer to Figures 1 to 3 On the one hand, the present application proposes an air conditioner (not shown in the figure). In an embodiment of the present application, the air conditioner includes an air-conditioning indoor unit (not shown in the figure) and an air-conditioning outdoor unit (not shown in the figure) connected to each other, wherein the air-conditioning indoor unit and the air-conditioning outdoor unit may both include a refrigerant circulation system (not shown in the figure), and the refrigerant circulation system has a pipeline module 300.

[0070] 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. 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.

[0071] 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, which can reduce the number of pipelines and reduce pipeline vibration and pipeline wear.

[0072] The pipeline assembly 310 may include two cover plates 320, which are covered and connected to each other and internally enclose the above-mentioned fluid cavity 310a. 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.

[0073] The cover plate 320 of the pipeline structure is also provided with two openings 310b respectively connected to the fluid cavity 310a, that is, the fluid (for example, the refrigerant) can enter through one of the openings 310b, flow in the fluid cavity 310a, and then flow out through the other opening 310b. At this time, the installation position of the filter assembly 100 can include but is not limited to the following two forms:

[0074] The first installation position form 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.

[0075] The second installation position is to place the filter assembly 100 in the fluid cavity 310a and between the two openings 310b. At this time, when the fluid flows in the fluid cavity 310a, the filter assembly 100 can filter the impurities accompanying the fluid.

[0076] The two openings 310b are located on the same side of the pipeline assembly 310, that is, the two openings 310b can be opened on the same cover plate 320 of the pipeline assembly 310. In the actual assembly process, when the two pipelines are connected to the two openings 310b respectively, they can be assembled on the same cover plate 320 for easy operation. Of course, in other structural forms, the two openings 310b can be located on opposite sides of the pipeline assembly 310, that is, the two openings 310b can be opened on different cover plates 320 of the pipeline assembly 310 respectively, and this is not limited. The specific opening position of the opening 310b can also be selected according to the location of the installation component connected to the actual pipeline.

[0077] 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 used 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 net 30 and a pressure strip 50.

[0078] The support frame 10 may be a frame structure, and the support frame 10 may be made of metal, such as pure metal or alloy, wherein the alloy may be aluminum alloy, stainless steel, etc. In the actual working process, the fluid will have a certain impact when flowing through the filter assembly 100, so it is necessary to ensure that the support frame 10 itself has a certain strength, and when it is an alloy material, the support frame 10 itself has a 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 so that the fluid can flow through the opening. The support frame 10 may be used to be fixedly connected to the cavity wall of the fluid cavity 310a, wherein the fixed connection may be in the form of welding connection or adhesive connection, or in the form of threaded connection through fasteners. Considering that the fluid may be a high-temperature, high-pressure and high-speed fluid, when it is in the form of welding connection, the connection strength between the support frame 10 and the cavity wall of the fluid cavity 310a can be ensured, so that the support frame 10 will not fall off easily. For example, it may be in the form of fusion welding or brazing. When it is necessary to improve the accuracy of the assembly position, it may be pre-fixed by resistance spot welding to facilitate subsequent processing. When it is in the form of detachable connection such as threaded connection, either the support frame 10 or the cover plate 320 of the pipeline assembly 310 can be disassembled and replaced, which is convenient for maintenance and repair.

[0079] The filter screen 30 is sleeved on the support frame 10, and a filter cavity with an opening is formed inside, and 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, and the impurities in the fluid are filtered by the filter cavity. 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, so that the opening of the filter screen 30 can be adapted to the shape of the opening 310b or not, and this is not limited.

[0080] Since the fluid can be a high-temperature, high-pressure and high-speed fluid, the filter 30 can be made of metal, for example, the filter 30 can be a woven stainless steel filter, so that the filter 30 itself can be guaranteed to have a certain strength while filtering impurities. Of course, when the fluid is a low-temperature, high-pressure and low-speed liquid, the filter 30 can also be made of plastic, which is not limited.

[0081] The filter screen 30 includes a filter body 31 and a connecting portion 33 connected to each other, and the connecting portion 33 is arranged around the filter body 31, that is, the filter body 31 and the connecting portion 33 are both sleeved on the support frame 10, wherein the interior of the filter body 31 is formed as the above-mentioned filter cavity, and the connecting portion 33 is used to connect with 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 of 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 surround the above-mentioned filter cavity, and the bottom wall 311 and the side wall 313 are provided with filter holes connected to the filter cavity, so as to achieve the screening of fluid and impurities through the filter holes.

[0082] The pressure strip 50 is connected to the support frame 10 on the side facing the support frame 10, and cooperates with the support frame 10 to clamp and fix the connecting portion 33. That is, under the pressure of the pressure strip 50, the connecting portion 33 of the filter screen 30 will be tightly attached to the support frame 10, and the connection portion 33 of the filter screen 30 is clamped and fixed by the cooperation between the pressure strip 50 and the support frame 10.

[0083] The shape of the pressure strip 50 is adapted to the contour shape of the connection part 33, and the side of the pressure strip 50 facing the support frame 10 is adapted to be connected with the connection part 33. In this way, the connection part 33 of the filter 30 can be pressed against the support frame 10 to clamp the filter 30, thereby increasing the contact area between the pressure strip 50 and the connection part 33, making the connection between the pressure strip 50 and the connection part 33 more firmly, and further improving the fixing effect of the filter 30. The pressure strip 50 can be made of metal, such as stainless steel, and in this case, the pressure strip 50 can be stamped into a shape that is adapted to the contour shape of the connection part 33 by a stamping process, which is convenient for processing.

[0084] Exemplarily, when the materials of the support frame 10, the filter screen 30 and the pressure strip 50 are all metal materials, for example, when they are all 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 pressurizing for welding at the same time, without the need for filling metal, with high productivity, small deformation of welds, and a high degree of automated processing in the workshop.

[0085] The technical solution of the present application realizes the clamping and fixing of the connecting portion 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 connecting portion 33 of the filter screen 30 and the support frame 10, and prevent the filter screen 30 from being disconnected from the support frame 10 and failing 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.

[0086] In one embodiment, please refer to Figures 4 to 6 The support frame 10 includes a connecting body 11 and a supporting portion 13 connected to each other. The gap between the connecting body 11 and the side of the pressure strip 50 facing the connecting body 11 forms a clamping space for clamping the connecting portion 33. The connecting portion 33 of the filter screen 30 will be located in the clamping space, and the opposite sides of the connecting portion 33 will be fixedly connected to the connecting body 11 and the pressure strip 50 respectively, so as to clamp and fix the connecting portion 33.

[0087] The support portion 13 is arched in a direction away from the connecting body 11, wherein the filter body 31 is sleeved on the support portion 13. In 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 the side wall 313 of the filter body 31, so that the bottom wall 311 and / or the side wall 313 of the filter body 31 can be propped up by the support portion 13, thereby making the filter cavity have a certain capacity.

[0088] In one structural form, see Figure 6 The connecting body 11 includes four connecting plates connected end to end, and the four connecting plates include two first connecting plates 111 opposite to each other in the length direction of the support frame 10 and two second connecting plates 113 opposite to each other in the width direction of the support frame 10, and the second connecting plate 113 is connected between the two first connecting plates 111. That is, the four connecting plates are used to cooperate with the pressure strip 50 to clamp and fix the connecting portion 33 of the filter screen 30.

[0089] The shape of the first connecting plate 111 is adapted to the contour shape of the fluid cavity 310a, and the plate surface of the first connecting plate 111 facing away from the connecting portion 33 is adapted to be connected to the cavity wall surface of the fluid cavity 310a. For example, when the cavity wall surface of the fluid cavity 310a is an arc-shaped surface, the first connecting plate 111 can be in an arc-shaped structure, so as to fit with the cavity wall surface of the fluid cavity 310a in the form of an arc-shaped structure to achieve an adaptive connection, which can increase the contact area between the first connecting plate 111 and the cavity wall surface of the fluid cavity 310a, and improve the connection firmness between the two. Even in the actual process, in the face of the impact of high temperature, high pressure and high speed fluid, the first connecting portion 33 and the cavity wall surface of the fluid cavity 310a will not be easily separated, thereby extending the service life of the filter assembly 100.

[0090] The profile of the second connecting plate 113 includes an outer edge 1131 extending in the axial direction of the fluid cavity 310a, and the contact between the outer edge 1131 and the cavity wall surface of the fluid cavity 310a is line contact. In the actual assembly process, for example, when the first connecting plate 111 is first welded to the cavity wall surface of the fluid cavity 310a, the second connecting plate 113 will be affected by the high temperature during the welding process of the first connecting plate 111, and a certain degree of deformation will occur. At this time, when the outer edge 1131 of the second connecting plate 113 is compared with the second connecting plate 113 as a whole, the deformation will be less. Therefore, by making the outer edge 1131 of the second connecting plate 113 and the cavity wall surface of the fluid cavity 310a in line contact and welding, it is possible to facilitate the welding of the cavity wall surface of the fluid cavity 310a of the second connecting plate 113, and under the line contact welding, the amount of solder used can be appropriately reduced while ensuring sufficient connection strength, so as to reduce the assembly cost 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.

[0091] In order to ensure the connection firmness between the connection body 11 of the support frame 10 and the connection part 33 of the filter screen 30, in one embodiment, the width value of the first connection plate 111 is greater than or equal to 4 mm, the width value of the second connection plate 113 is greater than or equal to 4 mm, and the width value of the pressure strip 50 is greater than or equal to 4 mm. In this way, a certain connection area can be provided between the first connection plate 111, the connection part 33 and the pressure strip 50, and a certain connection area can be provided between the second connection plate 113, the connection part 33 and the pressure strip 50, so that the connection body 11 can have a good connection firmness when connected with the connection part 33. In the actual assembly process, when the resistance welding method is adopted, the resistance welding pressure head is required to press the first connection plate 111 and the second connection plate and the pressure strip 50 of the connection body 11 of the support frame 10 respectively. Since the end face width value of the pressure end of the resistance welding pressure head cannot be less than 4 mm, when the width values ​​of the first connection plate 111, the second connection plate 113 and the pressure strip 50 are all greater than 4 mm, it is convenient to select the resistance welding pressure head. Exemplarily, the width of the first connecting plate 111 can be 4 mm, 5 mm, 6 mm, 7 mm or 8 mm, etc.; the width of the second connecting plate 113 can be 4 mm, 5 mm, 6 mm, 7 mm or 8 mm, etc.; the width of the pressure strip 50 can be 4 mm, 5 mm, 6 mm, 7 mm or 8 mm, etc., and the present application does not impose any limitations on this.

[0092] The above content introduces the advantages of the filter assembly 100 of the present application having a stable connection between the filter screen 30 and the support frame 10 from the aspect of the matching form of the support frame 10, the filter screen 30 and the pressure strip 50. On this basis, in order to further improve the expansion degree of the filter body 31 of the filter screen 30, please refer to Figure 6 The present application may also be that the support portion 13 includes at least two support bars 131 and a reinforcement bar 133, 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, and at least two support bars 131 and the reinforcement bar 133 jointly support the filter body 31.

[0093] Since the support strip 131 is in the shape of a long strip and arches in the direction away from the connection body 11, the support strip 131 is easily deformed due to its own insufficient strength. Therefore, a reinforcing strip 133 is connected between two adjacent support strips 131, so that the reinforcing strip 133 can act as a reinforcing rib to improve the strength of the two adjacent support strips 131. When the support strip 131 has a certain strength, it is easy to achieve good support for the filter body 31, so that the filter body 31 can be well opened by the support part 13. At the same time, the reinforcing strip 133 alone can also support the bottom wall 311 of the filter body 31, further improving the opening effect of the filter body 31.

[0094] In the exemplary solution 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 both are 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. In this arrangement, the bottom wall 311 and the side wall 313 can be supported by the first support segment 1311 and the second support segment 1313, respectively, so as to improve the overall support of the filter body 31 of the filter screen 30, so that the filter cavity of the filter body 31 can maintain a large capacity, and achieve good accommodation of the filtered impurities.

[0095] In one embodiment, the pipeline assembly 310 includes a limiting protrusion 330 adjacent to the opening 310b, and the limiting protrusion 330 is engaged with the connecting body 11 of the support frame 10 to limit the installation position of the filter assembly 100. In the actual assembly process, in order to facilitate the staff to position and install the filter net 30 when it is set at the opening 310b, the limiting protrusion 330 is set to limit the installation position of the filter assembly 100, and it can also serve as a reminder to the staff to a certain extent to improve the position installation accuracy of the final filter assembly 100. In the scheme exemplarily shown in the figure, the number of limiting protrusions 330 can be set to one, and the single limiting protrusion 330 is engaged with the support frame 10 to stop and limit the installation position of the filter assembly 100, and it can be applicable to filter assemblies 100 of different sizes. Of course, the number of the limiting protrusions 330 can also be set to 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 the installation position of the filter assembly 100 can also be limited. There is no limitation on this.

[0096] Based on the above content, the present application proposes a pipeline module 300, and further proposes an assembly method of the pipeline module 300, please refer to Figure 7 , the assembly method of the pipeline module 300 comprises the following steps:

[0097] Step S10: Provide a support frame 10 and a filter screen 30, and sleeve the filter body 31 of the filter screen 30 on the support frame 10. The filter body 31 of the filter screen 30 may be sleeved on 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.

[0098] Step S20: providing a pressure strip 50, and clamping the connection portion 33 of the filter 30 by the cooperation between the pressure 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 pressure strip 50 and the support frame 10, ensuring the relative position relationship between the three, which is convenient for subsequent processing.

[0099] Step S30: Weld and seal the connection part 33, the support frame 10, and the pressure strip 50. By welding the connection part 33, the support frame 10, and the pressure strip 50, the three are fixedly connected, and the sealing between the connection body 11 of the support frame 10 and the connection part 33 is ensured, so as to prevent the fluid with impurities from flowing into the fluid cavity 310a through the gap between the connection body 11 and the connection part 33.

[0100] Step S40: Provide two cover plates 320 of the pipeline assembly 310, weld the support frame 10 to the inner wall surface of one of the cover plates 320, and cover and connect the other cover plate 320 to the cover plate 320 welded with the support frame 10 to obtain the pipeline module 300. The connecting body 11 of the support frame 10 is welded to the inner wall surface of the cover plate 320, that is, the connecting body 11 is welded to the cavity wall surface of the fluid cavity 310a, and after the welding is completed, the two cover plates 320 are covered to realize the required pipeline module 300.

[0101] 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 the three together, so that under the pressure of the pressure strip 50 on the filter screen 30, the connection firmness between the support frame 10 and the filter screen 30 is guaranteed, and the connection strength between 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 be easily separated, thereby ensuring the filtering effect and extending the service life of the filter component 100 in the pipeline component 310.

[0102] In one embodiment, see Figure 8 The step S30 of welding and sealing the connection part 33, the support frame 10 and the pressure strip 50 is specifically as follows:

[0103] Step S31: spot-weld the connection portion 33, the first connection plate 111, and the pressure strip 50. In this step, multiple spot welding may be performed, and the spacing between two adjacent welding points may range from 6 mm to 8 mm, so as to reduce the amount of solder and reduce the cost while ensuring the stability of the spot welding connection. Exemplarily, the spacing between two adjacent welding points may be 6 mm, 6.5 mm, 7 mm, 7.5 mm, or 8 mm, etc., which is not limited thereto.

[0104] Step S32: spot-weld the connection portion 33, the second connection plate 113 and the pressure strip 50 so that the connection portion 33 is sealed and fixedly connected to the support frame 10. Similarly, in this step, multiple spot welding may be performed, and the spacing between two adjacent welding points may range from 6 mm to 8 mm, so that the amount of solder used can be reduced while ensuring the stability of the spot welding connection, thereby reducing costs. Exemplarily, the spacing between two adjacent welding points may be 6 mm, 6.5 mm, 7 mm, 7.5 mm or 8 mm, etc., without limitation.

[0105] 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 pressure strip 50 are first spot-welded, and then the connection portion 33, the first connection plate 111 and the pressure strip 50 are spot-welded. Of course, it is also possible to spot-weld the connection portion 33, a first connection plate 111 and the pressure strip 50 in the order of circumferential spot welding, then spot-weld the connection portion 33, a second connection plate 113 and the pressure strip 50, then spot-weld the connection portion 33, another first connection plate 111 and the pressure strip 50, and finally spot-weld the connection portion 33, another second connection plate 113 and the pressure strip 50, which is not limited to this.

[0106] 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 easy to operate and has a good connection effect.

[0107] In one embodiment, see Fig. 9 The specific steps of welding the support frame 10 to the inner wall surface of one of the cover plates 320 are as follows:

[0108] 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 adapted to the inner wall of the cover plate 320 (the wall of the fluid chamber 310a) may be spot-welded to achieve a preliminary spot-weld connection, and the support frame 10 and the inner wall of the cover plate 320 are pre-connected in the first step.

[0109] 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 in line contact with the inner wall of the cover plate 320 (the cavity wall of the fluid cavity 310a) can be spot-welded, and the support frame 10 and the inner wall of the cover plate 320 are completely pre-connected. When the first connecting plate 111 is welded, the high temperature brought by the welding process will cause a certain degree of deformation to the second connecting plate 113, but 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 the surface contact welding between the plate surface of the second connecting plate 113 and the inner wall of the cover plate 320 (for example, the arc surface), so as to facilitate processing and welding.

[0110] 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.

[0111] Among them, when the welding furnace is a vacuum furnace, it has the advantage of making the welding part heated more evenly, and the vacuum furnace has excellent heat transfer performance, which can achieve constant heating, maintain uniform temperature, make the welding part fit tightly, and greatly improve welding efficiency. And the vacuum furnace can be conducive to 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 processing, and come out from another tunnel opening after the processing is completed, realizing an automated welding process.

[0112] For further information, see 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:

[0113] 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.

[0114] Step S432: Provide a welding pressure head, and continuously press the welding pressure head against the pressure strip 50. Since the second connecting plate 113 itself cannot always ensure perfect processing accuracy during the production process, such as the stamping process, the welding pressure head is pressed against the pressure strip 50, thereby shortening the distance between the second connecting plate 113 and the inner wall surface of the cover plate 320, and ensuring that the second connecting plate 113 and the inner wall surface of the cover plate 320 are welded.

[0115] Step S433: Send the connection body 11, the cover plate 320 connected to the support frame 10, and the welding pressure head into the welding furnace for welding. The welding pressure head can be made of ceramic material or graphite material, so that the welding pressure head has the characteristic of high temperature resistance, so that it can enter the welding furnace together with the filter component 100 and the pipeline component 310, and always keep the pressure on the pressure strip 50 during the welding process, so as to improve the final welding effect and the success rate of production and processing.

[0116] 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 based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated 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.

[0117] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A filter assembly, used to be arranged in a fluid cavity of a pipeline assembly to filter the fluid flowing through the fluid cavity, characterized in that: include: A support frame, used for fixedly connecting with the cavity wall 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, characterized in that 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 for clamping the connecting portion, and the supporting portion is arched 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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 5, characterized in that 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, characterized in that: 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, characterized in that: 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, characterized in that: The pipeline assembly includes two cover plates, which are connected to each other and enclose the fluid cavity.

12. The pipeline module according to claim 9, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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.

Images