WO2023035977A1 - 储液器、滤网组件及其制备方法 - Google Patents

储液器、滤网组件及其制备方法 Download PDF

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Publication number
WO2023035977A1
WO2023035977A1 PCT/CN2022/115105 CN2022115105W WO2023035977A1 WO 2023035977 A1 WO2023035977 A1 WO 2023035977A1 CN 2022115105 W CN2022115105 W CN 2022115105W WO 2023035977 A1 WO2023035977 A1 WO 2023035977A1
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WO
WIPO (PCT)
Prior art keywords
filter screen
connecting piece
filter layer
filter
edge
Prior art date
Application number
PCT/CN2022/115105
Other languages
English (en)
French (fr)
Inventor
韦腾飞
Original Assignee
浙江盾安人工环境股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202122153966.7U external-priority patent/CN215983377U/zh
Priority claimed from CN202111043187.XA external-priority patent/CN115773600A/zh
Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Priority to JP2024501101A priority Critical patent/JP2024531050A/ja
Priority to KR1020247004630A priority patent/KR20240033694A/ko
Publication of WO2023035977A1 publication Critical patent/WO2023035977A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/0415—Details of supporting structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/23—Separators

Definitions

  • the present application relates to the technical field of refrigeration systems, in particular to a liquid receiver, a filter screen assembly and a preparation method thereof.
  • the accumulator is connected with the liquid inlet of the compressor and is an important part in the refrigeration system.
  • the liquid reservoir is composed of a cylinder body, an air inlet pipe, an air outlet pipe, and a filter assembly, and plays the roles of storage, filtration, and buffering. Wherein, filtering and/or buffering are generally realized through a filter screen assembly.
  • the installation method of the filter layer is that the filter layer is directly welded on the filter screen support, and then the filter screen assembly is fixed in the cylinder of the liquid reservoir, or the filter layer is directly welded on the liquid reservoir
  • this method is prone to hidden dangers of melting and falling off of the mesh of the filter layer and falling off of welding slag, which will cause noise in the liquid receiver, jamming and other undesirable phenomena, and even cause foreign matter to enter the interior of the compressor and make the cylinder of the compressor The body is easily damaged or even the compressor crashes.
  • the welding gap generated by welding after the filter layer is installed is large, which makes the bonding force between the filter layer and the filter screen support poor after welding, and it is easy to fall off under the impact or corrosion of the fluid, which leads to the filter effect of the reservoir. Poor or even non-functional.
  • a liquid reservoir, a filter screen assembly and a manufacturing method thereof are provided.
  • the present application provides a filter screen assembly.
  • the filter screen assembly includes a filter layer, a filter screen support and a connecting piece.
  • One side of the connecting piece is arranged on the filter screen support, and the other side is connected from the bottom of the filter layer Extending to the outer edge of the filter layer and pressing against the filter layer by bending, the connecting piece is fixedly connected to the filter screen support by welding.
  • the connector includes a ring body and a crimping portion fixed to each other, the ring body is pressure-welded to the filter screen support, and the ring body extends from the bottom of the filter layer to the On the outer edge of the filter layer, the crimping portion is connected to the outer edge of the ring body, and is folded toward the filter layer and pressed against the filter layer.
  • a space for accommodating the edge of the filter layer is formed between the ring body and the crimping portion, and the crimping portion is tightly pressed against a side of the filter layer away from the filter screen support.
  • the filter screen support includes a connecting portion fixedly connected to the connecting piece, the connecting portion is provided with a protrusion facing the filter layer, and the connecting portion is connected to the connecting portion through the protrusion.
  • the parts are fixed by resistance welding.
  • the filter screen support further includes a flow guide part protruding toward the filter layer, the flow guide part is arranged facing the filter layer, and can divert the fluid from the filter layer,
  • the connecting portion is arranged around the circumference of the flow guiding portion.
  • a support part is provided between the connecting part and the flow guide part, and the support part is provided with a plurality of flow reduction holes, and the plurality of flow reduction holes are arranged along the circumferential direction of the flow guide part. Spread evenly.
  • the support portion is recessed in a direction away from the filter layer to form a drainage groove, and the flow reduction hole communicates with the drainage groove.
  • the wall surface of the drainage groove is arranged in an arc shape.
  • the filter layer includes a first filter screen and a second filter screen stacked, and edges of the first filter screen and edges of the second filter screen are disposed in the connecting member.
  • the present application also provides a liquid accumulator, the liquid accumulator includes a cylinder body, an air inlet pipe, an air outlet pipe and the filter screen assembly as described in any one of the above, and the filter screen assembly and the cylinder body pass through the The filter bracket is fixedly connected.
  • the present application also provides a method for preparing a filter screen assembly.
  • the preparation method of the filter screen assembly includes: bending the connecting piece, and making the connecting piece form a space for accommodating the edge of the filter layer; compressing the connecting piece , and wrap the edge of the filter layer; fix the connecting piece and the filter screen support through pressure welding.
  • the step of bending the connecting piece and making the connecting piece form a space for accommodating the edge of the filter layer includes: aligning the outer edge of the connecting piece along the axial direction of the connecting piece bending, and making the connecting piece form a space for accommodating the edge of the filter layer.
  • the step after bending the outer edge of the connecting piece along the axial direction of the connecting piece and making the connecting piece form a space for accommodating the edge of the filter layer includes: The edge of the filter layer is placed on the unbent part of the connecting piece; the bent part of the connecting piece is turned over to the axial direction of the connecting piece, and a hole that can compress and fix the edge of the filter layer is formed. Roll pressing department.
  • the step of fixing the connecting piece to the filter screen support by pressure welding includes: implementing fixed connection of the connecting piece and the filter screen support by resistance welding.
  • the step of bending the connecting piece and making the connecting piece form a space for accommodating the edge of the filter layer includes: bending the outer edge of the connecting piece, and making the connecting piece The angle formed between the bent part and the unbent part of the piece is an acute angle, so as to form a space for accommodating the edge of the filter layer.
  • the step of compressing the connecting piece and wrapping the edge of the filter layer includes: placing the edge of the filter layer on the unbent part of the connecting piece;
  • the electrode used for resistance welding turns over the bent part of the connecting piece to the axial direction of the connecting piece, and forms a crimping portion capable of pressing and fixing the edge of the filter layer.
  • the step of compressing the connecting piece and wrapping the edge of the filter layer further includes: abutting one electrode used for the resistance welding against the crimping part, and the other The electrodes are in contact with the filter screen support; the two electrodes apply pressure to the crimping portion and the filter screen support respectively and conduct electricity.
  • the step before the step of fixing the connecting piece and the filter screen support by pressure welding, the step further includes: the filter screen support forms a protrusion protruding toward the connecting piece through a stamping process, the The electrodes exert pressure on the crimping portion and the protrusion.
  • Fig. 1 is a schematic structural diagram of a filter screen assembly according to one or more embodiments.
  • FIG. 2 is a schematic cross-sectional view of the screen assembly shown in FIG. 1 .
  • Fig. 3 is a partially enlarged view at A of the filter screen assembly shown in Fig. 2 .
  • FIG. 4 is a structural schematic view of another viewing angle of the screen assembly shown in FIG. 1 .
  • FIG. 5 is a schematic cross-sectional view of a reservoir according to one or more embodiments.
  • FIG. 6 is a flowchart of a method of manufacturing a screen assembly according to one or more embodiments.
  • Filter screen assembly 10. Filter layer; 11. First filter screen; 12. Second filter screen; 20. Filter screen support; 21. Connecting part; 241, flow reduction hole; 242, drainage groove; 30, connector; 31, ring body/unbent part; 32, crimping part/bending part; 33, space; 200, liquid reservoir; 201, Cylinder body; 202, air intake pipe; 203, air outlet pipe.
  • the present application provides a filter assembly 100, which is applied in the liquid reservoir 200 and has good functions of filtering and buffering fluid and separating gas and liquid.
  • FIG. 1 is a schematic structural view of a filter screen assembly 100 according to one or more embodiments of the present application
  • FIG. 2 is a schematic cross-sectional view of the filter screen assembly shown in FIG. 1
  • FIG. 4 is a structural schematic diagram of another viewing angle of the screen assembly 100 shown in FIG. 1
  • FIG. 5 is a screen assembly 100 installed in one or more embodiments of the present application A schematic cross-sectional view of the reservoir 200.
  • the filter screen assembly 100 includes a filter layer 10 , a filter screen support 20 and a connecting piece 30 .
  • the filter layer 10 is used for filtering fluid
  • the filter screen support 20 is used for fixing the filter layer 10
  • the connecting piece 30 is used for wrapping the filter layer 10 and fixedly connected to the filter screen support 20 .
  • the connecting piece 30 wraps the edge of the filter layer 10 and presses it tightly, which can prevent the mesh wire of the filter layer 10 from melting and falling off and welding slag falling off during welding connection.
  • the screen holder 20 is fixed to the connecting member 30 by welding.
  • the filter screen support 20 may be fixed to the connecting member 30 by other connection methods such as pressure welding.
  • the filter layer 10 is roughly a hemispherical filter mesh structure.
  • the filter layer 10 is used to filter fluid, and the hemispherical filter mesh structure can increase the effective filter area for fluid circulation when the fluid flows through.
  • the filter layer 10 may also have other structures, such as a cone structure, as long as the function of filtering fluid can be realized.
  • the filter layer 10 includes a first filter screen 11 and a second filter screen 12 which are stacked.
  • the structures of the first filter screen 11 and the second filter screen 12 are matched; the edges of the first filter screen 11 and the edges of the second filter screen 12 are bound and fixed by the connecting piece 30 .
  • the meshes of the first filter screen 11 and the second filter screen 12 are arranged alternately and bonded together. Such arrangement can enhance the filtering effect of the filter layer 10 on the fluid.
  • the filter layer 10 can be configured as a three-layer, four-layer or other multi-layer filter mesh structure, so as to enhance the filtering effect of the filter layer 10 on fluid.
  • first filter screen 11 and the second filter screen 12 can also have other structures, such as conical structures, and the structures of the two can also be inconsistent, as long as the fluid can be filtered.
  • first filter screen 11 and the second filter screen 12 may also not need to be arranged alternately and/or pasted together.
  • the first filter screen 11 and the second filter screen 12 are the same metal screen, such as stainless steel screen. With such an arrangement, the strength of the first filter screen 11 and the second filter screen 12 can be ensured.
  • the screen holder 20 includes a connecting portion 21 .
  • the connection portion 21 is generally an annular structure with an “L”-shaped cross section, and is used for connecting the filter layer 10 to the liquid storage 200 .
  • the connecting part 21 is used to connect with the connecting piece 30, which can facilitate the fixed connection with the connecting piece 30 by resistance welding, thus eliminating the need for welding materials and filler metals, avoiding the falling off of welding slag during use, and at the same time, the welding cost is low and the production efficiency is high. High, suitable for mass production.
  • the connecting portion 21 and the connecting piece 30 can also be fixed by pressure welding, contact welding, friction welding, gas pressure welding, cold pressing, etc., as long as the welding with the connecting piece 30 can be realized. Just fix it.
  • the connecting part 21 can also be in other ways, such as bonding, riveting, and soldering, as long as the fixed connection between the connecting part 21 and the connecting piece 30 can be realized.
  • the connecting portion 21 is provided with a protrusion 22 facing the filter layer 10 .
  • the connecting part 21 is fixed to the connecting part 30 by pressure welding through the protrusion 22 .
  • the protrusion 22 is disposed on a side of the connecting portion 21 facing the connecting piece 30 and protrudes toward the connecting piece 30 .
  • the protrusion 22 can abut against the connecting piece 30, so that there is a certain gap between the connecting part 21 and the connecting piece 30, and make the filter screen support 20 and the connecting piece 30 be in bump contact before pressure welding, which improves the convexity.
  • the electrode pressure and welding current at the point contact position are conducive to heat concentration during welding, thereby facilitating the welding of the connecting portion 21 and the connecting piece 30 and improving welding quality, thereby improving production efficiency and reducing the possibility of joint deformation.
  • the plurality of protrusions 22 are evenly spaced along the circumferential direction of the connecting portion 21 .
  • the protrusion 22 is roughly a hemispherical protrusion, which improves the concentration of the current during welding and is beneficial to the heat concentration during pressure welding. Such setting can improve the connection strength between the connection part 21 and the filter layer 10 .
  • the protrusions 22 may have other shapes; the number and positions of the protrusions 22 may be correspondingly set according to actual requirements.
  • the number of protrusions 22 can be set to eight.
  • the eight protrusions 22 are evenly arranged along the circumferential direction of the connecting portion 21 .
  • the gap between the connecting part 21 and the connecting piece 30 before welding may be 0.5 cm. In this way, not only the production efficiency is high, but also the bonding force of the welding place is relatively large.
  • the connecting portion 21 includes an annular top surface and side surfaces surrounding the top surface.
  • the top surface of the connecting portion 21 is used for connecting with the connecting piece 30
  • the side surface of the connecting portion 21 is used for connecting with the cylinder body 201 of the liquid reservoir 200 .
  • the protrusion 22 is disposed on a top surface of the connecting portion 21 facing the side of the filter layer 10 .
  • One end of the side of the connecting portion 21 facing away from the filter layer 10 shrinks radially inward to form a chamfer, which facilitates the installation and disassembly of the filter screen support 20 and the cylinder body 201 of the liquid reservoir 200 .
  • the side of the connecting portion 21 away from the top surface shrinks radially to form a certain taper.
  • the maximum inner diameter of the side of the connecting portion 21 matches the inner diameter of the cylinder body 201 of the liquid reservoir 200, that is, the connecting portion 21 can just extend into the cylinder body 201 of the liquid reservoir 200, and through the taper of the side surface of the connecting portion 21 and the The inner wall of the cylinder body 201 of the liquid reservoir 200 is clamped, and the installation method is simple.
  • the screen holder 20 further includes a flow guiding part 23 .
  • the guide portion 23 is substantially dome-shaped and protrudes toward the filter layer 10 .
  • the flow guide part 23 can divide the fluid, and the flow guide part 23 is arranged in the middle of the top surface of the filter screen support 20 and protrudes toward the filter layer 10 . Most of the filtered fluid will flow through the flow guide part 23 and flow around along the surface of the flow guide part 23 , so as to realize the diversion of the fluid and realize the function of buffering the fluid.
  • the flow guide part 23 may also have other structures, such as the flow guide part 23 with an elliptical cross-sectional shape, as long as it can achieve the functions of diverting and buffering the fluid.
  • a bracket portion 24 is provided between the connection portion 21 and the flow guide portion 23 .
  • the bracket portion 24 and the flow guiding portion 23 are disposed on the inner edge of the top surface of the connecting portion 21 .
  • the support portion 24 is provided with a plurality of flow reduction holes 241; the plurality of flow reduction holes 241 are evenly arranged along the circumferential direction of the flow guide portion 23.
  • the flow reduction hole 241 is substantially a circular hole.
  • the flow reduction hole 241 is used to reduce the flow of the filtered fluid.
  • the flow reducing hole 241 is opened on the top surface of the filter holder 20 and between the flow guiding part 23 and the connecting part 21 , so as to prevent a large amount of fluid from directly impacting the barrel 201 of the liquid reservoir 200 .
  • the number of flow reduction holes 241 may be eight. Such an arrangement has a better flow reduction effect on the fluid.
  • the bracket portion 24 is recessed in a direction away from the filter layer 10 to form a drainage groove 242 .
  • the flow reduction hole 241 communicates with the drainage groove 242 .
  • the drainage groove 242 is roughly in the shape of an arc groove.
  • the drainage groove 242 is used to guide the flow of the fluid filtered through the filter layer 10 .
  • the filtered fluid flows into the flow reducing hole 241 after passing through the wall of the drainage groove 242 , and then enters the air outlet pipe of the liquid reservoir 200 .
  • Such an arrangement not only prevents the fluid from directly flowing into and out of the gas pipe, but also effectively prevents the fluid from impacting the inner wall of the liquid reservoir 200 .
  • the drainage groove 242 may be of other structures, such as a square groove, as long as the drainage of the fluid can be achieved.
  • the filter screen support 20 can be formed by stamping a metal plate, which can reduce material consumption and improve production efficiency. At the same time, the processed filter screen support 20 has higher strength and rigidity, making the filter screen The bracket 20 is not easily deformed under the impact of the fluid.
  • the material of the filter screen support 20 can be stainless steel, aluminum alloy and other materials with strong corrosion resistance, which can avoid being corroded by fluid during use and effectively prolong the service life of the filter screen support 20 .
  • the filter screen support 20 can be formed by other processing methods, such as casting, as long as the filter screen support 20 can be processed conveniently.
  • the installation method of the filter layer is to directly weld the filter layer on the filter screen support, and then fix the filter screen assembly in the cylinder of the liquid reservoir, which is easy to cause the mesh wire of the filter layer to melt and fall off.
  • the hidden danger of welding slag falling off will cause the liquid receiver to generate noise, jamming and other adverse phenomena, and even cause foreign matter to enter the interior of the compressor, which will easily damage the cylinder block of the compressor and even cause the compressor to crash.
  • the welding gap generated by welding after the filter layer is installed is large, which makes the bonding force between the filter layer and the filter screen support poor after welding, and it is easy to fall off under the impact or corrosion of the fluid, which leads to the filter effect of the reservoir. Poor or even non-functional.
  • the present application wraps the filter layer 10 through the connecting piece 30 and forms a space 33 for accommodating the edge of the filter layer 10 , so as to realize the wrapping and compression of the filter layer 10 .
  • the bent connector 30 is fixed to the screen support 20 by resistance welding. In this way, the welding gap between the connecting piece 30 and the filter screen support 20 is small, which can not only prevent the mesh wire of the filter layer 10 from melting and falling off and welding slag falling off during welding, but also make the bonding force between the two after welding large, thereby improving The connection reliability of the filter screen assembly 100.
  • the connecting piece 30 is roughly in the shape of a ring.
  • One side of the connecting member 30 is disposed on the filter frame 20 , and the other side extends from the bottom of the filter layer 10 to the outer edge of the filter layer 10 and presses against the filter layer 10 by bending.
  • the other side of the connection piece 30 extends from the bottom of the filter layer 10 to the outer edge of the filter layer 10 and is bent to a certain extent, so that the other side of the connection piece 30 presses and abuts against the filter layer 10 .
  • the connecting piece 30 is fixedly connected to the filter screen support 20 through pressure welding.
  • the connecting piece 30 is used for pressing the filter layer 10 and welding with the filter screen support 20 .
  • One end of the connector 30 abuts against the filter layer 10, and a space 33 capable of accommodating the edge of the filter layer 10 can be formed by bending the connector 30.
  • the mesh support 20 is fixedly connected by resistance welding.
  • the connector 30 includes a ring body 31 and a crimping portion 32 fixed to each other.
  • the crimping portion 32 is substantially in an annular structure.
  • the ring body 31 is pressure welded to the filter screen support 20 , and the ring body 31 extends from the bottom of the filter layer 10 to the outer edge of the filter layer 10 .
  • the crimping part 32 is connected to the outer edge of the ring body 31, and is folded toward the filter layer 10 and pressed against the filter layer 10; a space 33 for accommodating the edge of the filter layer 10 is formed between the ring body 31 and the crimping part 32; The crimping portion 32 is tightly pressed against a side of the filter layer 10 away from the filter screen support 20 .
  • the ring body 31 is used to connect the filter layer 10 and the filter screen support 20; the outer edge of the filter layer 10 is pressed between the ring body 31 and the crimping part 32, and is used to realize the wrapping of the outer edge of the filter layer 10 to compress Filter layer 10.
  • the connecting piece 30 is bent by the sheet metal process, and the outer edge of the connecting piece 30 is crimped toward the filter layer 10 and forms a space 33 for accommodating the edge of the filter layer 10, and the edge of the filter layer 10 is placed on the edge of the connecting piece 30.
  • the bent part 31 is turned inward by a sheet metal process to form a crimped part 32 pressed on the edge of the filter layer 10 .
  • one electrode abuts against the crimping part 32, and the other electrode abuts against the connecting part 21 of the filter holder 20.
  • the connection is realized by applying force to the two electrodes and energizing them.
  • 30 is fixedly connected to the screen holder 20.
  • the bending method of the connecting member 30 may be other processing methods, such as punching, as long as the edges of the filter layer 10 can be wrapped.
  • the connecting piece 30 can be bent by a sheet metal process, and the angle between the bent portion 32 and the unbent portion 31 of the connecting piece 30 is an acute angle, and the connecting piece 30 is placed on the filter screen support 20
  • the connecting part 21 of the connecting part 30, and then the edge of the filter layer 10 is placed on the unbent part 31 of the connecting part 30; during resistance welding, one electrode abuts against the bent part 32 of the connecting part 30, and the other electrode abuts against the filter screen support 20
  • the connection part 21 of the connecting part 21 enables the connecting part 30 to wrap and compress the filter layer 10 by applying force to the two electrodes. The production efficiency of the filter screen assembly 100 is greatly improved.
  • the filter screen assembly provided in one embodiment of the present application bends the connecting piece and forms a space for accommodating the edge of the filtering layer, so as to wrap and compress the filtering layer, and then the bent connecting piece It is fixed to the filter screen support by resistance welding, and the welding gap between the connecting piece and the filter screen support is small, which can not only avoid the melting and falling off of the mesh wire of the filter layer and the falling off of welding slag during welding, but also make the bonding force after welding large, thereby improving The reliability of the filter screen assembly is improved.
  • the present application also provides a liquid reservoir 200 using the above-mentioned filter screen assembly 100, the liquid reservoir 200 effectively prevents the mesh wire of the filter layer 10 from melting and falling off and welding slag falling off, and reduces the risk of failure of the liquid reservoir 200 , so as to prevent foreign objects from generating noise in the liquid storage 200 and entering into other devices connected to the liquid storage 200 .
  • the liquid reservoir 200 includes a cylinder body 201 , an air inlet pipe 202 , an air outlet pipe 203 and the above-mentioned filter assembly 100 .
  • the filter screen assembly 100 is fixedly connected to the cylinder body 201 through the filter screen support 20 .
  • the preparation method of a filter screen assembly is used to prepare the filter screen assembly 100 in the liquid reservoir 200, which can prevent the mesh wire of the filter layer of the filter screen assembly 100 from melting or foreign matter such as welding slag from entering the storage tank during preparation.
  • the connection strength of the filter screen assembly 100 itself is strengthened at the same time.
  • the preparation method of the filter screen assembly can also be applied to other equipment with a filter screen and similar structure, such as purifiers and air filters.
  • FIG. 6 is a flowchart of a method for preparing a filter screen assembly in an embodiment of the present application.
  • the preparation method of the net assembly includes:
  • Step S10 bending the connecting piece, and making the connecting piece form a space for accommodating the edge of the filter layer
  • Step S20 compressing the connecting piece, and wrapping the edge of the filter layer
  • step S30 the connecting piece is fixedly connected to the filter screen support by pressure welding.
  • the connecting piece can be bent with a sheet metal process, so that the connecting piece forms a space for accommodating the edge of the filter layer; the edge of the filter layer is placed in this space, so that the connecting piece can completely align The edges are hemmed, and the connecting piece and the filter layer whose edge is accommodated in the connecting piece are fixedly connected to the filter screen support by welding.
  • the connecting member 30 can also be bent by other bending methods, which are not specifically limited here.
  • the preparation method of the filter screen assembly realizes wrapping and pressing the filter layer by bending the connecting piece, and then the bent connecting piece is fixed to the filter screen support by pressure welding, and the filter layer is pressure-welded to the filter screen through the connecting piece.
  • the mesh bracket can not only prevent the mesh wire of the filter layer from melting and falling off and welding slag falling off during welding, but also make the bonding force after welding strong, thereby improving the reliability of the filter mesh assembly.
  • the step S10 of bending the connecting piece and making the connecting piece form a space for accommodating the edge of the filter layer includes: step S11, placing the outer edge of the connecting piece along the The axial direction of the connecting piece is bent, and the connecting piece forms a space for accommodating the edge of the filter layer.
  • the connecting piece put the connecting piece into a corresponding mold in the sheet metal process, and then bend the outer edge of the connecting piece along the axis of the connecting piece, so that the angle between the bent part and the unbent part is roughly perpendicular, and make the The edge of the filter layer can be accommodated in the connecting piece.
  • the connecting piece can be directly bent into the above-mentioned shape by using a CNC bending machine.
  • the connecting piece after bending the outer edge of the connecting piece along the axis direction of the connecting piece, and making the connecting piece form a space for accommodating the edge of the filter layer, it further includes:
  • Step S21 placing the edge of the filter layer on the unbent part of the connector
  • Step S22 turning over the bent portion of the connecting piece toward the axial direction of the connecting piece, and forming a crimping portion capable of compressing and fixing the edge of the filter layer.
  • the outer edge of the connecting piece wraps and compresses the filter layer, so that the connecting piece and the filter layer are fixed to each other.
  • Such an arrangement can prevent the mesh wires of the filter layer from directly contacting the filter screen support, thereby avoiding problems such as melting of the mesh wires caused by welding.
  • the step S10 of bending the connecting piece and making the connecting piece form a space for accommodating the edge of the filter layer includes: Step S11', bending the outer edge of the connecting piece , and make the angle formed between the bent part and the unbent part of the connector be an acute angle, so as to form a space for accommodating the edge of the filter layer.
  • the bent part and the unbent part of the connector enclose a space for accommodating the filter layer. So set, the acute angle formed by the connector itself can make the connector and the filter layer can be directly compressed by the tooling or directly compressed by other tools when the compression and edge wrapping are performed in the next step. Such setting facilitates the next step of fixed connection between the connecting piece and the filter layer.
  • connection between the connecting piece and the filter screen support is simpler, and the production efficiency is high, which is suitable for mass production.
  • the step S30 of fixing the connecting piece to the filter screen support by pressure welding includes: step S31 , implementing fixed connection of the connecting piece and the filter screen support by resistance welding.
  • resistance welding does not require welding materials and filler metals, avoids welding slag falling off during use, and at the same time has low welding cost and high welding convenience.
  • the resistance welding electrode can directly act on the connecting part and the filter screen support and weld, which can save the pressing step and improve production efficiency.
  • the step S20 of compressing the connecting piece and wrapping the edge of the filter layer includes:
  • Step S21' placing the outer edge of the filter layer on the unbent part of the connector
  • Step S22' using the electrode used for the resistance welding to turn over the bent portion of the connecting piece toward the axis of the connecting piece, and form a crimping portion capable of pressing and fixing the edge of the filter layer.
  • the two electrodes used for resistance welding can be directly pressed against the crimping portion and the filter screen support respectively.
  • the acute angle formed between the crimping portion and the ring body can be directly pressed against and welded by the electrode.
  • the electrode pressing connector and the filter screen used by resistance welding are shaped and fixed by welding at one time. With such arrangement, the production process of the filter screen assembly is simplified and the connection strength is reliable.
  • step S20 of compressing the connecting piece and wrapping the edge of the filter layer it also includes:
  • Step S31 abutting one electrode used for the resistance welding on the crimping part, and abutting the other electrode on the filter screen support;
  • step S32 the two electrodes apply pressure to the crimping portion and the filter holder respectively and electrify them.
  • the connecting piece is placed on the surface of the filter screen support facing the filter layer; then one electrode used for resistance welding is abutted against the crimping part, and the other electrode is abutted against the filter screen support, and the two electrodes respectively apply pressure to the crimping part.
  • the part and the filter screen support are powered on, so that the connecting piece and the filter screen support are fixedly connected.
  • the filter screen support By first placing the bent connecting piece on the connecting part of the filter screen support, then placing the filter layer in the space formed by the bent part (rolled part) and the unbent part (ring body) of the connecting piece, and finally Place the filter screen support on one electrode used for resistance welding, and the side of the connection part of the filter screen support away from the filter layer is in contact with the electrode, and the other electrode used for resistance welding is in contact with the crimping part of the connector , and apply pressure to compress the filter net, so as to realize the double wrapping of the filter layer. Finally, the two electrodes are energized and continue to apply pressure, so that the connecting piece and the filter screen support are fixedly connected.
  • step S30 of fixing the connecting piece and the filter screen support by pressure welding it also includes: step S301, the filter screen support is formed by a stamping process to protrude toward the connecting piece. a protrusion, and the electrode exerts pressure on the crimping portion and the protrusion.
  • the connecting part of the filter screen support is formed by a stamping process to protrude toward the connecting piece, so that the gap between the connecting piece and the filter screen support before welding can be 0.5 cm, which not only has high production efficiency but also ensures the safety of the welding place. Strong binding force.
  • the radial contact length of the filter layer and the crimping portion along the connecting piece is a first preset length.
  • the first preset length is 1/2 of the radial length of the crimping portion of the connecting piece, so that the connecting piece has a better wrapping effect on the filter layer.
  • the first preset length may be other lengths, for example, 1/3 of the length of the crimping portion along the radial direction, and the like.
  • a resistor used for resistance welding exerts force on the crimping part of the connecting piece and compresses the filter layer , the other resistor applies a force to the side of the connection facing away from the filter layer.
  • the two electrodes used for resistance welding are continuously pressed and energized, so as to realize the fixing of the connecting piece and the filter screen support. Since the filter layer has been hemmed during welding and resistance welding is used, there will be no hidden dangers of mesh melting and welding slag falling off, so that the above-mentioned foreign matter will not enter after the filter screen assembly is applied to the liquid reservoir In the liquid reservoir, the reliability of the product is improved.

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Abstract

一种储液器(200)、滤网组件(100)及其制备方法。该滤网组件(100)包括过滤层(10)、滤网支架(20)以及连接件(30)，连接件(30)的一侧设置于滤网支架(20)，另一侧自过滤层(10)的底部延伸至过滤层(10)的外沿并通过弯折压抵于过滤层(10)，连接件(30)与滤网支架(20)通过焊接实现固定连接。

Description

储液器、滤网组件及其制备方法
相关申请
本申请要求2021年9月7日申请的，申请号为202111043187.X，发明名称为“滤网组件的制备方法及滤网组件”以及2021年9月7日申请的，申请号为202122153966.7，发明名称为“滤网组件及储液器”的的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及制冷系统技术领域，特别是涉及一种储液器、滤网组件及其制备方法。
背景技术
储液器与压缩机的进液口连接，是制冷系统中的重要部件。储液器由筒体、进气管、出气管以及滤网组件等部件组成，起到储藏、过滤和缓冲等作用。其中，一般通过滤网组件实现过滤及/或缓冲。
但是相关技术的滤网组件中，过滤层的安装方法是将过滤层直接焊接在滤网支架上，再将滤网组件固定在储液器的筒体内，或者将过滤层直接焊接在储液器的筒体上，该方法容易产生过滤层的网丝熔化脱落及焊渣脱落的隐患，从而导致储液器产生噪音、卡机等不良现象，甚至导致异物进入压缩机内部而使得压缩机的缸体容易损坏甚至出现压缩机死机的问题。除此之外，过滤层安装后焊接产生的焊接间隙较大，使得焊接后过滤层与滤网支架的结合力较差，在流体的冲击或者腐蚀之下容易脱落，从而导致储液器过滤效果差甚至无法正常工作。
发明内容
根据本申请的各种实施例，提供一种储液器、滤网组件及其制备方法。
本申请提供一种滤网组件，所述滤网组件包括过滤层、滤网支架以及连接件，所述连接件的一侧设置于所述滤网支架，另一侧自所述过滤层的底部延伸至所述过滤层的外沿并通过弯折压抵于所述过滤层，所述连接件与所述滤网支架通过焊接实现固定连接。
在一实施例中，所述连接件包括相互固定的环体及卷压部，所述环体压焊于所述滤网支架，且所述环体自所述过滤层的底部延伸至所述过滤层的外沿，所述卷压部连接于所述环体的外缘，且朝向所述过滤层翻折并压抵于所述过滤层。
所述环体及所述卷压部之间形成容置所述过滤层边缘的空间，且所述卷压部紧密压抵于所述过滤层远离所述滤网支架的一侧。
在一实施例中，所述滤网支架包括与所述连接件固定连接的连接部，所述连接部朝向所述过滤层设有凸起，所述连接部通过所述凸起与所述连接件通过电阻焊接固定。
在一实施例中，所述凸起的数量为多个，且多个所述凸起沿连接部的周向均匀间隔布设。
在一实施例中，所述滤网支架还包括朝向所述过滤层凸设的导流部，所述导流部正对所述过滤层设置，且能够分流来自于所述过滤层的流体，所述连接部环设于所述导流部的周向。
在一实施例中，所述连接部与所述导流部之间设有支架部，所述支架部开设有多个减流孔，多个所述减流孔沿所述导流部周向均匀布设。
在一实施例中，所述支架部背离所述过滤层的方向凹陷并形成引流槽，所述减流孔与所述引流槽相连通。
在一实施例中，所述引流槽的壁面呈弧面设置。
在一实施例中，所述过滤层包括层叠设置的第一滤网和第二滤网，所述第一滤网的边沿与所述第二滤网的边沿设置于所述连接件内。
本申请还提供一种储液器，所述储液器包括筒体、进气管、出气管及如上述任意一项所述的滤网组件，所述滤网组件与所述筒体通过所述滤网支架固定连接。
本申请还提供一种滤网组件的制备方法，所述滤网组件的制备方法包括：弯折连接件，并使所述连接件形成容置过滤层的边缘的空间；压紧所述连接件，并对所述过滤层的边缘进行包边；将所述连接件与滤网支架通过压焊固定连接。
在一实施例中，弯折所述连接件，并使所述连接件形成容置所述过滤层的边缘的空间的步骤包括：将所述连接件的外边缘沿所述连接件的轴线方向弯折，并使所述连接件形成容置所述过滤层的边缘的空间。
在一实施例中，将所述连接件的外边缘沿所述连接件的轴线方向弯折，并使所述连接件形成容置所述过滤层的边缘的空间之后的步骤包括：将所述过滤层的边缘放置于所述连接件的未弯折部分；将所述连接件的弯折部分向所述连接件的轴线方向翻压，并形成能够压紧及固定所述过滤层的边缘的卷压部。
在一实施例中，将所述连接件与所述滤网支架通过压焊固定连接的步骤包括：将所述连接件与所述滤网支架通过电阻焊接实现固定连接。
在一实施例中，弯折所述连接件，并使所述连接件形成容置所述过滤层的边缘的空间的步骤包括：将所述连接件的外边缘弯折，并使得所述连接件的弯折部分与未弯折部分之间形成的夹角为锐角，以形成容置所述过滤层的边缘的 空间。
在一实施例中，压紧所述连接件，并对所述过滤层的边缘进行包边的步骤包括：将所述过滤层的边缘放置于所述连接件的未弯折部分；通过所述电阻焊接所用的电极将所述连接件的弯折部分向所述连接件的轴线方向翻压，并形成能够压紧及固定所述过滤层的边缘的卷压部。
在一实施例中，压紧所述连接件，并对所述过滤层的边缘进行包边的步骤之后还包括：将所述电阻焊接所用的一个电极抵接于所述卷压部，另一个电极与所述滤网支架抵接；两个所述电极分别施加压力于所述卷压部以及所述滤网支架并通电。
在一实施例中，将所述连接件与所述滤网支架通过压焊固定连接的步骤之前还包括：所述滤网支架通过冲压工艺形成朝向所述连接件凸设的凸起，所述电极施加压力于所述卷压部及所述凸起上。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
图1为根据一个或多个实施例的滤网组件的结构示意图。
图2为图1所示的滤网组件的剖视示意图。
图3为图2所示的滤网组件在A处的局部放大图。
图4为图1所示滤网组件另一视角的结构示意图。
图5为根据一个或多个实施例中储液器的剖视示意图。
图6为根据一个或多个实施例的滤网组件的制备方法的流程图。
元件标号说明：
100、滤网组件；10、过滤层；11、第一滤网；12、第二滤网；20、滤网支架；21、连接部；22、凸起；23、导流部；24、支架部；241、减流孔；242、引流槽；30、连接件；31、环体/未弯折部分；32、卷压部/弯折部分；33、空间；200、储液器；201、筒体；202、进气管；203、出气管。
以上主要元件符号说明结合附图及具体实施方式对本申请作进一步详细的说明。
具体实施方式
为使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及具体实施方式，对本申请进行进一步的详细说明。应当理解的是，此处所描述的具体实施方式仅用以解释本申请，并不限定本申请的保护范围。
需要说明的是，当组件被称为“安装于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“设置于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。当一个组件被认为是“固定于”另一个组件，它可以是直接固定在另一个组件上或者可能同时存在居中组件。本申请所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本申请所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本申请所使用的术语“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
本申请提供一种滤网组件100，应用于储液器200内，具有良好的过滤和缓冲流体的作用以及气液分离的作用。
请参阅图1至图5，图1为本申请一个或多个实施例的滤网组件100的结构示意图；图2为图1所示的滤网组件的剖视示意图；图3为图2所示的滤网组件100在A处的局部放大图；图4为图1所示滤网组件100另一视角的结构示意图；图5为本申请一个或多个实施例中安装有滤网组件100的储液器200的剖视示意图。
如图1所示，滤网组件100包括过滤层10、滤网支架20以及连接件30。过滤层10用于过滤流体，滤网支架20用于固定过滤层10，连接件30用于对过滤层10包边并固定连接于滤网支架20。连接件30对过滤层10包边并压紧，能够避免过滤层10的网丝熔化脱落及焊接连接时的焊渣脱落。在一些实施例中，滤网支架20通过焊接固定于连接件30。在另一些实施例中，滤网支架20可以通过压焊等其他连接方式固定于连接件30。
过滤层10大致为半球状的滤网结构。过滤层10用于过滤流体，半球状的滤网结构能够使得流体流过时，增加流体流通的有效过滤面积。
可以理解，在其他实施方式中，过滤层10还可以为其他结构，例如锥形结构，只要能够实现对流体过滤的功能即可。
在其中一个实施方式中，过滤层10包括层叠设置的第一滤网11以及第二滤网12。第一滤网11以及第二滤网12的结构相适配；第一滤网11的边沿以及第二滤网12的边沿通过连接件30进行包边固定。第一滤网11与第二滤网12的网孔交错设置并贴合。如此设置，能够增强过滤层10对流体的过滤效果。在其他实施例中，过滤层10可以设置为三层、四层等多层滤网结构，以增强过滤层10对流体的过滤效果。
可以理解，在其他实施方式中，第一滤网11以及第二滤网12还可以为其他结构，例如锥形结构，且两者的结构也可以不一致，只要能够实现对流体的 过滤即可。当然，第一滤网11以及第二滤网12也可以不需要网孔交错设置及/或贴合设置。
在其中一个实施方式中，第一滤网11以及第二滤网12为同种金属滤网，例如不锈钢网等。如此设置，能够确保第一滤网11以及第二滤网12的强度。
在其中一个实施方式中，如图2及图3所示，滤网支架20包括连接部21。连接部21大致呈截面为“L”形的环状结构，用于将过滤层10连接于储液器200内。连接部21用于与连接件30连接，能够便于与连接件30通过电阻焊接方式固定连接，从而不需要焊接材料以及填充金属，避免了使用过程中焊渣脱落，同时焊接成本低，且生产效率高，适用于大批量生产。
可以理解，在其他实施方式中，连接部21与连接件30之间还可以通过锻焊、接触焊、摩擦焊、气压焊、冷压等方式压焊固定，只要能够实现与连接件30的焊接固定即可。连接部21还可以通过其他方式，例如粘接、铆接以及钎焊等方式，只要能够实现连接部21与连接件30的固定连接即可。
进一步地，如图2及图3所示，连接部21朝向过滤层10设有凸起22。连接部21通过凸起22与连接件30压焊固定。凸起22设置于连接部21朝向连接件30的一侧，并朝向连接件30凸设。在焊接之前，凸起22能够与连接件30抵接，使得连接部21与连接件30之间存在一定间隙，并使滤网支架20与连接件30压焊之前为凸点接触，提高了凸点接触位置的电极压力与焊接电流，有利于焊接时的热量集中，从而便于连接部21与连接件30的焊接并提升焊接质量，从而提高生产效率和降低接头变形的可能性。
可选地，凸起22的数量为多个，且多个凸起22沿连接部21的周向均匀间隔布设。凸起22大致为半球形凸起，提高焊接时电流的集中度，有利于压焊时的热量集中。如此设置，能够提高连接部21与过滤层10的连接强度。
可以理解，在其他实施方式中，凸起22可以为其它形状；凸起22的数量及设置位置可以根据实际需求而相应设置。
可选地，凸起22的数量可以设置为八个。八个凸起22沿连接部21的周向均匀排布。可选地，焊接前的连接部21与连接件30之间的间隙可以为0.5cm。如此，不仅生产效率高且焊接处的结合力较大。
在其中一个实施方式中，连接部21包括环形的顶面以及环绕顶面周侧的侧面。连接部21的顶面用于与连接件30连接，连接部21的侧面用于与储液器200的筒体201连接。凸起22设置于连接部21的顶面朝向过滤层10的一侧。连接部21的侧面背离过滤层10的一端沿径向向内收缩形成倒角，便于滤网支架20与储液器200的筒体201的安装及拆卸。
在其中一个实施方式中，连接部21的侧面远离顶面的一侧沿径向收缩形成一定的锥度。且连接部21的侧面最大内径处与储液器200的筒体201的内径相匹配，即连接部21能够刚好伸入储液器200的筒体201内，并通过连接部21侧面的锥度与储液器200的筒体201的内壁卡紧，安装方式简单。
在其中一个实施方式中，滤网支架20还包括导流部23。导流部23大致为圆顶形结构，并朝向过滤层10凸设。导流部23能够对流体进行分流，导流部23设置于滤网支架20的顶面的中间位置，并朝向过滤层10凸设。经过过滤的大部分流体会流经导流部23，并沿着导流部23的表面向四周流动，从而实现了对流体的分流，并能够实现缓冲流体的作用。
可以理解，在其他实施方式中，导流部23还可以为其他结构，例如截面形状为椭圆形的导流部23，只要能够实现对流体的分流及缓冲作用即可。
在其中一个实施方式中，如图2及图4所示，连接部21与导流部23之间设有支架部24。支架部24及导流部23设置于连接部21的顶面内沿处。支架部 24开设有多个减流孔241；多个减流孔241沿导流部23周向均匀布设。减流孔241大致为圆形孔。减流孔241用于对经过过滤后的流体减流。减流孔241开设于滤网支架20的顶面，且开设于导流部23与连接部21之间，能够避免流体大量直接冲击储液器200的筒体201。
可选地，减流孔241的数量可以为八个。如此设置，对于流体具有较好的减流效果。
进一步地，支架部24背离所述过滤层10的方向凹陷并形成引流槽242。减流孔241与引流槽242相连通。引流槽242大致为弧形槽形结构。引流槽242用于引导经由过滤层10过滤后的流体的流动。过滤后的流体通过引流槽242的壁面后流入减流孔241内，再进入储液器200的出气管中。如此设置，不仅可以避免流体直接流进出气管，还可以有效避免流体冲击储液器200的内壁。
可以理解，在其他实施方式中，引流槽242可以为其他结构，例如为方形槽体，只要能够实现对流体的引流即可。
在其中一个实施方式中，滤网支架20可由金属板件经过冲压加工而形成，能够减少材料的消耗、提高生产效率，同时加工出来的滤网支架20具有较高的强度和刚度，使得滤网支架20在流体的冲击下不易变形。
可选地，滤网支架20的材料可以为不锈钢以及铝合金等耐腐蚀性较强的材料，能够避免使用过程中被流体腐蚀，有效延长了滤网支架20的使用寿命。
可以理解，在其他实施方式中，滤网支架20可通过其他的加工方式形成，例如铸造，只要能够便于加工滤网支架20即可。
但是相关技术中滤网组件中，过滤层的安装方法是将过滤层直接焊接在滤网支架上，再将滤网组件固定在储液器的筒体内，容易产生过滤层的网丝熔化脱落及焊渣脱落的隐患，从而导致储液器产生噪音、卡机等不良现象，甚至导 致异物进入压缩机内部而使得压缩机的缸体容易损坏甚至出现压缩机死机的问题。除此之外，过滤层安装后焊接产生的焊接间隙较大，使得焊接后过滤层与滤网支架的结合力较差，在流体的冲击或者腐蚀之下容易脱落，从而导致储液器过滤效果差甚至无法正常工作。
为了解决上述问题，本申请通过连接件30对过滤层10进行包边设置，并形成容置过滤层10的边缘的空间33，从而实现对过滤层10包边及压紧。之后，再将经过折弯后的连接件30通过电阻焊接与滤网支架20相固定。如此设置，连接件30与滤网支架20的焊接间隙小，不仅能够避免焊接时过滤层10的网丝熔化脱落及焊渣脱落，还使得焊接后两者之间的结合力大，从而提高了滤网组件100的连接可靠性。
连接件30大致为环形结构。连接件30的一侧设置于滤网支架20，另一侧自过滤层10的底部延伸至过滤层10的外沿并通过弯折压抵于过滤层10。具体的，连接件30的另一侧自过滤层10的底部延伸至过滤层10的外沿并弯折至一定程度，使得连接件30的另一侧压合并抵接于过滤层10。连接件30与滤网支架20通过压焊实现固定连接。连接件30用于压紧过滤层10并与滤网支架20焊接。连接件30的一端与过滤层10抵接，通过弯折连接件30可形成能够容置过滤层10的边缘的空间33，连接件30的另一端设置于滤网支架20，并与所述滤网支架20通过电阻焊接实现固定连接。
如图2及图3所示，连接件30包括相互固定的环体31及卷压部32。卷压部32大致为环形结构。环体31压焊于滤网支架20，且环体31自过滤层10的底部延伸至过滤层10的外沿。卷压部32连接于环体31的外缘，且朝向过滤层10翻折并压抵于过滤层10；环体31及卷压部32之间形成容置过滤层10边缘的空间33；且卷压部32紧密压抵于过滤层10远离滤网支架20的一侧。环体 31用于连接过滤层10及滤网支架20；环体31与卷压部32之间压合过滤层10的外沿，并用于实现对过滤层10外沿的包边，以压紧过滤层10。
安装时，通过钣金工艺弯折连接件30，连接件30的外边缘朝向过滤层10卷边并形成容置过滤层10的边缘的空间33，将过滤层10的边缘放置于连接件30未弯折部分31，再通过钣金工艺使得弯折部分32向内翻压，并形成压持在过滤层10的边缘的卷压部32。将连接件30放置于连接部21，电阻焊接时一个电极抵接于卷压部32，另一个电极抵接于滤网支架20的连接部21，通过对两电极施力并通电，从而实现连接件30与滤网支架20的固定连接。
可以理解，在其他实施方式中，连接件30的弯折方式可以为其他加工方式，例如冲压等，只要能够实现对过滤层10的边缘包边即可。
在其中一个实施方式中，可以通过钣金工艺弯折连接件30，并使得连接件30的弯折部分32与未弯折部分31的夹角为锐角，将连接件30放置于滤网支架20的连接部21，再将过滤层10的边缘放置于连接件30未弯折部分31；电阻焊接时一个电极抵接于连接件30的弯折部分32，另一个电极抵接于滤网支架20的连接部21，通过对两电极施力使得连接件30能够实现对过滤层10的包边并压紧，两电极继续施力并通电，从而实现连接件30与滤网支架20的焊接，能够大大提升滤网组件100的生产效率。
本申请一实施方式提供的滤网组件，通过折弯连接件，并形成容置所述过滤层的边缘的空间，从而实现对过滤层包边并压紧，再将经过折弯后的连接件通过电阻焊接与滤网支架相固定，且连接件与滤网支架的焊接间隙小，不仅能够避免焊接时过滤层的网丝熔化脱落及焊渣脱落，还使得焊接后的结合力大，从而提高了滤网组件的可靠性。
本申请还提供一种使用如上述的滤网组件100的储液器200，该储液器200 有效避免了过滤层10的网丝熔化脱落及焊渣脱落，降低了储液器200的故障风险，从而避免了异物在储液器200里面产生噪音以及进入与储液器200相连的其他设备当中。
该储液器200包括筒体201、进气管202、出气管203及如上述的滤网组件100。滤网组件100与筒体201通过滤网支架20固定连接。
本申请提供的一种滤网组件的制备方法，用于制备储液器200中的滤网组件100，能够避免滤网组件100在制备中过滤层的网丝熔化或焊渣等异物进入到储液器200内，同时加强了滤网组件100自身的连接强度。当然，该滤网组件的制备方法也可应用于其他具有滤网且结构相似的设备当中，例如净化器以及空气滤清器等设备。
请参阅图6，图6为本申请一实施方式中的滤网组件的制备方法的流程图。网组件的制备方法包括：
步骤S10，弯折连接件，并使所述连接件形成容置所述过滤层的边缘的空间；
步骤S20，压紧所述连接件，并对所述过滤层的边缘进行包边；
步骤S30，将所述连接件与所述滤网支架通过压焊固定连接。
具体地，可以用钣金工艺对连接件进行弯折，以使得连接件形成容置过滤层的边缘的空间；将过滤层的边缘放置于该空间，以使得连接件能够完全地对过滤层的边缘进行包边，通过焊接将连接件以及边缘容置于连接件的过滤层与滤网支架固定连接。
可以理解，在其他实施方式中，连接件30还可以通过其他弯折方式进行弯折，在此不做具体限定。
该滤网组件的制备方法通过折弯连接件实现对过滤层包边并压紧，再将经过折弯后的连接件通过压焊与滤网支架相固定，过滤层通过连接件压焊于滤网 支架，不仅能够避免焊接时过滤层的网丝熔化脱落及焊渣脱落，还使得焊接后的结合力大，从而提高了滤网组件的可靠性。
在其中一个实施方式中，弯折所述连接件，并使所述连接件形成容置所述过滤层的边缘的空间的步骤S10包括：步骤S11，将所述连接件的外边缘沿所述连接件的轴线方向弯折，并使所述连接件形成容置所述过滤层的边缘的空间。
具体地，将连接件放入钣金工艺中相应的模具中，再将连接件的外边缘沿连接件的轴线方向弯折，使得弯折部分与未弯折部分的夹角大致垂直，并使得过滤层的边缘能够容置于连接件。当然，为提高加工效率和加工精度，可以直接使用数控折弯机将连接件弯折成上述形状。
在其中一个实施方式中，将所述连接件的外边缘沿所述连接件的轴线方向弯折，并使所述连接件形成容置所述过滤层的边缘的空间之后，还包括：
步骤S21，将所述过滤层的边缘放置于所述连接件的未弯折部分；
步骤S22，将所述连接件的弯折部分向所述连接件的轴线方向翻压，并形成能够压紧及固定所述过滤层的边缘的卷压部。
具体地，连接件的外边缘对过滤层进行包边及压紧，从而使连接件与过滤层之间相互固定。如此设置，能够避免过滤层的网丝直接与滤网支架相接触，从而避免焊接所带来的网丝熔融等问题。
在其中一个实施方式中，弯折所述连接件，并使所述连接件形成容置所述过滤层的边缘的空间的步骤S10包括：步骤S11’，将所述连接件的外边缘弯折，并使得所述连接件的弯折部分与未弯折部分之间形成的夹角为锐角，以形成容置所述过滤层的边缘的空间。
连接件的弯折部分与未弯折部分围设形成容置过滤层的空间。如此设置，能够通过连接件自身形成的锐角，使得连接件与过滤层在下一步进行压紧和包 边的时候能够通过工装直接压紧，或通过其他工具直接进行压紧。如此设置，便于连接件与过滤层下一步的固定连接。
例如，在连接件与滤网支架之间实施压焊时，连接件与滤网支架的连接更加简单，且生产效率高，适用于大批量生产。
在其中一个实施方式中，将所述连接件与所述滤网支架通过压焊固定连接的步骤S30包括：步骤S31，将所述连接件与所述滤网支架通过电阻焊接实现固定连接。
具体地，通过电阻焊接不需要焊接材料以及填充金属，避免了使用过程中焊渣脱落，同时焊接成本低且焊接便捷度高。
此外，若连接件的弯折部位与未弯折部分之间形成锐角，则电阻焊接的电极可直接作用于连接件及滤网支架上并焊接，能够省去压紧的步骤，提高生产效率。
在其中一个实施方式中，压紧所述连接件，并对所述过滤层的边缘进行包边的步骤S20包括：
步骤S21’，将所述过滤层的外边缘放置于所述连接件的未弯折部分；
步骤S22’，通过所述电阻焊接所用的电极将所述连接件的弯折部分向所述连接件的轴线方向翻压，并形成能够压紧及固定所述过滤层的边缘的卷压部。
具体地，通过电阻焊接的方式，可直接将电阻焊接所用的两个电极分别压抵于卷压部及滤网支架上。其中，卷压部与环体之间形成的锐角可供电极直接压抵并焊接。通过电阻焊接所用的电极下压连接件和滤网一次定型并焊接固定。如此设置，使得滤网组件的生产工艺更加简化，且连接强度可靠。
在其中一个实施方式中，压紧所述连接件，并对所述过滤层的边缘进行包边的步骤S20之后还包括：
步骤S31，将所述电阻焊接所用的一个电极抵接于所述卷压部，另一个电极与所述滤网支架抵接；
步骤S32，两个所述电极分别施加压力于所述卷压部以及所述滤网支架并通电。
具体地，将连接件放置于滤网支架朝向过滤层的表面；再将电阻焊接所用的一个电极抵接于卷压部，另一个电极与滤网支架抵接，两电极分别施加压力于卷压部以及滤网支架并通电，使得连接件和滤网支架实现固定连接。
通过先将折弯后的连接件放置于滤网支架上的连接部，然后将过滤层放置于连接件的弯折部分(卷压部)和未弯折部分(环体)形成的空间，最后将滤网支架放置于电阻焊接时所用的一个电极上，且滤网支架的连接部背离过滤层的的一侧与电极接触，电阻焊接时所用的另一个电极抵接于连接件的卷压部，并施加压力将过滤网压紧，从而实现对过滤层的双包边。最后两电极通电并继续施压，从而使得连接件和滤网支架固定连接。
在其中一个实施方式中，将所述连接件与所述滤网支架通过压焊固定连接的步骤S30之前还包括：步骤S301，所述滤网支架通过冲压工艺形成朝向所述连接件凸设的凸起，所述电极施加压力于所述卷压部及所述凸起上。
具体地，滤网支架的连接部通过冲压工艺形成朝向连接件凸设的凸起，以使得连接件和滤网支架之间在焊接之前的间隙可以为0.5cm，不仅生产效率高且焊接处的结合力较大。
可选地，过滤层与卷压部沿连接件的径向接触长度为第一预设长度。该第一预设长度为连接件的卷压部沿径向的长度的1/2，使得连接件对过滤层的包边效果更好。当然，该第一预设长度可以为其他长度，例如卷压部沿径向的长度的1/3等。
通过将弯折后的连接件放置于滤网支架，再将过滤层容置于连接件，最后在电阻焊接时，电阻焊接所用的一个电阻对连接件的卷压部施力并压紧过滤层，另一个电阻对与连接部背离过滤层的的一侧施力。将电阻焊接所用的两电极持续施压并通电，从而实现连接件与滤网支架的固定。由于在焊接时已经对过滤层包边，且采用电阻焊接，从而使得不会存在网丝熔化脱落及焊渣脱落的隐患，从而使得将滤网组件应用于储液器之后不会导致上述异物进入储液器内，提高了产品的可靠性。
以上所述实施方式的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施方式中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施方式仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对实用新型专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (18)

  1. 一种滤网组件，其特征在于，所述滤网组件包括过滤层、滤网支架以及连接件，所述连接件的一侧设置于所述滤网支架，另一侧自所述过滤层的底部延伸至所述过滤层的外沿并通过弯折压抵于所述过滤层，所述连接件与所述滤网支架通过焊接固定连接。
  2. 根据权利要求1所述的滤网组件，其中，所述连接件包括相互固定的环体及卷压部，所述环体压焊于所述滤网支架，且所述环体自所述过滤层的底部延伸至所述过滤层的外沿，所述卷压部连接于所述环体的外缘，且朝向所述过滤层翻折并压抵于所述过滤层；
    所述环体及所述卷压部之间形成容置所述过滤层边缘的空间，且所述卷压部紧密压抵于所述过滤层远离所述滤网支架的一侧。
  3. 根据权利要求1所述的滤网组件，其中，所述滤网支架包括与所述连接件固定连接的连接部；
    所述连接部朝向所述过滤层设有凸起，所述连接部通过所述凸起与所述连接件通过电阻焊接固定。
  4. 根据权利要求3所述的滤网组件，其中，所述凸起的数量为多个，且多个所述凸起沿连接部的周向均匀间隔布设。
  5. 根据权利要求3所述的滤网组件，其中，所述滤网支架还包括朝向所述过滤层凸设的导流部，所述导流部正对所述过滤层设置，且能够分流来自于所述过滤层的流体，所述连接部环设于所述导流部的周向。
  6. 根据权利要求5所述的滤网组件，其中，所述连接部与所述导流部之间设有支架部，所述支架部开设有多个减流孔，多个所述减流孔沿所述导流部周向均匀布设。
  7. 根据权利要求6所述的滤网组件，其中，所述支架部背离所述过滤层的方向凹陷并形成引流槽，所述减流孔与所述引流槽相连通。
  8. 根据权利要求7所述的滤网组件，其中，所述引流槽的壁面呈弧面设置。
  9. 根据权利要求1所述的滤网组件，其中，所述过滤层包括层叠设置的第一滤网和第二滤网，所述第一滤网的边沿与所述第二滤网的边沿设置于所述连接件内。
  10. 一种储液器，其特征在于，所述储液器包括筒体、进气管、出气管及如权利要求1至9任意一项所述的滤网组件，所述滤网组件与所述筒体通过所述滤网支架固定连接。
  11. 一种滤网组件的制备方法，其特征在于，所述滤网组件的制备方法包括：
    弯折连接件，并使所述连接件形成容置过滤层的边缘的空间；
    压紧所述连接件，并对所述过滤层的边缘进行包边；
    将所述连接件与滤网支架通过压焊固定连接。
  12. 根据权利要求11所述的滤网组件的制备方法，其中，弯折所述连接件，并使所述连接件形成容置所述过滤层的边缘的空间的步骤包括：
    将所述连接件的外边缘沿所述连接件的轴线方向弯折，并使所述连接件形成容置所述过滤层的边缘的空间。
  13. 根据权利要求12所述的滤网组件的制备方法，其中，将所述连接件的外边缘沿所述连接件的轴线方向弯折，并使所述连接件形成容置所述过滤层的边缘的空间之后的步骤包括：
    将所述过滤层的边缘放置于所述连接件的未弯折部分；
    将所述连接件的弯折部分向所述连接件的轴线方向翻压，并形成能够压紧 及固定所述过滤层的边缘的卷压部。
  14. 根据权利要求11所述的滤网组件的制备方法，其中，将所述连接件与所述滤网支架通过压焊固定连接的步骤包括：
    将所述连接件与所述滤网支架通过电阻焊接实现固定连接。
  15. 根据权利要求14所述的滤网组件的制备方法，其中，弯折所述连接件，并使所述连接件形成容置所述过滤层的边缘的空间的步骤包括：
    将所述连接件的外边缘弯折，并使得所述连接件的弯折部分与未弯折部分之间形成的夹角为锐角，以形成容置所述过滤层的边缘的空间。
  16. 根据权利要求15所述的滤网组件的制备方法，其中，压紧所述连接件，并对所述过滤层的边缘进行包边的步骤包括：
    将所述过滤层的边缘放置于所述连接件的未弯折部分；
    通过所述电阻焊接所用的电极将所述连接件的弯折部分向所述连接件的轴线方向翻压，并形成能够压紧及固定所述过滤层的边缘的卷压部。
  17. 根据权利要求16所述的滤网组件的制备方法，其中，压紧所述连接件，并对所述过滤层的边缘进行包边的步骤之后还包括：
    将所述电阻焊接所用的一个电极抵接于所述卷压部，另一个电极与所述滤网支架抵接；
    两个所述电极分别施加压力于所述卷压部以及所述滤网支架并通电。
  18. 根据权利要求17所述的滤网组件的制备方法，其中，将所述连接件与所述滤网支架通过压焊固定连接的步骤之前还包括：
    所述滤网支架通过冲压工艺形成朝向所述连接件凸设的凸起，所述电极施加压力于所述卷压部及所述凸起上。
PCT/CN2022/115105 2021-09-07 2022-08-26 储液器、滤网组件及其制备方法 WO2023035977A1 (zh)

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