A method of manufacturing a filter unit, a filter unit and a filter assembly

Abstract

This invention discloses a method for manufacturing a filter unit, a filter unit, and a filter assembly. In the manufacturing method of the filter unit in this application, multiple recessed grooves are first machined on the surface of the filter element, with filter ribs formed along the edges of the grooves. Then, the bottom of the recessed grooves is laser-processed to penetrate the bottom of the grooves, forming multiple filter holes. Next, a first frame and the filter element are combined, wherein the first frame is connected to the filter ribs, and a first perforated hole communicates with at least one recessed groove. In this application, by machining multiple recessed grooves on the surface of the filter element, since the bottom of the recessed grooves is thinner than the entire filter element, the laser power can be set lower during laser processing of the bottom of the recessed grooves, ensuring that the laser can penetrate the bottom of the grooves normally. This results in smaller filter holes being formed on the bottom of the recessed grooves.

Description

Technical Field

[0001] This invention relates to the field of filter structure manufacturing technology, and particularly to a method for manufacturing a filter unit, a filter unit, and a filter assembly. Background Technology

[0002] With the development of technology, filter units are being used more and more widely in various industries. Filter units are equipped with multiple filter holes. Substances smaller than the filter hole diameter can pass through smoothly, while substances larger than the filter hole diameter can be blocked by the filter unit. With the development of technology, the requirements for the size of filter holes in filter units are also getting higher and higher.

[0003] In related technologies, in order to process filter holes with smaller sizes, laser processing is usually used to process filter holes on filter units. However, in order for the laser emitter to successfully penetrate the filter unit, the laser emitter needs to output a large power. However, when the output power of the laser generator is large, the aperture of the filter hole processed by the laser emitter on the filter unit is also large, which makes it impossible to further reduce the size of the filter hole on the existing filter unit. Summary of the Invention

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art. A first aspect of this invention provides a method for manufacturing a filter unit, wherein the filter unit manufactured using this method has smaller filter pores. A second aspect of this invention also provides a filter unit. A third aspect of this invention also provides a filter assembly.

[0005] According to a first aspect embodiment of the present invention, a method for manufacturing a filter unit is provided, the filter unit comprising a first frame and a filter element sequentially laminated together, the first frame having a first perforation; the manufacturing method includes the following steps:

[0006] Multiple recessed grooves are machined on the surface of the filter element, and the groove edges of the recessed grooves form filter ribs;

[0007] Laser processing is performed on the bottom of the sinking trough to penetrate it and create multiple filter holes.

[0008] The first frame and the filter element are combined, wherein the first frame is connected to the filter ribs, and the first perforated hole is connected to at least one sinking groove.

[0009] The manufacturing method of the filter unit described in this invention has at least the following beneficial effects: In the manufacturing method of the filter unit of this application, multiple recessed grooves are first processed on the surface of the filter element, and filter ribs are formed along the groove edges. Then, the bottom of the recessed grooves is laser-processed to penetrate the bottom of the recessed grooves, and multiple filter holes are formed on the bottom of the recessed grooves. Next, the first frame and the filter element are combined, wherein the first frame is connected to the filter ribs, and the first hollow hole is connected to at least one recessed groove. In this application, by processing multiple recessed grooves on the surface of the filter element and then laser-processing filter holes on the bottom of the recessed grooves, since the bottom of the recessed grooves is thinner than the entire filter element, when laser-processing the bottom of the recessed grooves, the laser power can be set to be smaller while ensuring that the laser can penetrate the bottom of the recessed grooves normally. Therefore, the size of the filter holes processed on the bottom of the recessed grooves can be smaller.

[0010] According to the first aspect of the present invention, the method for manufacturing a filter unit, comprising combining a first frame and a filter element, includes the following steps:

[0011] Apply glue to the filter ribs;

[0012] Adhesive is used to bond the filter ribs to the first frame.

[0013] According to the first aspect of the present invention, the method for manufacturing a filter unit includes the following steps: applying adhesive to the filter ribs.

[0014] Obtain the first width dimension D1 of the filter rib;

[0015] The second width dimension D2 is obtained based on the first width dimension D1, wherein the value of D2 is between 0.6D1 and 0.8D1;

[0016] Apply glue to the surface of the filter ribs with a coverage width of the second width dimension D2.

[0017] According to the first aspect of the present invention, the method for manufacturing a filter unit further includes the following steps before combining the first frame and the filter element:

[0018] A receiving groove for accommodating the filter ribs is machined into the first frame.

[0019] According to the first aspect of the present invention, the method for manufacturing a filter unit, wherein the filter ribs and the first frame are bonded together by adhesive, includes the following steps:

[0020] Insert the filter ribs into the receiving groove;

[0021] Adhesive is used to bond the filter ribs to the wall of the receiving tank.

[0022] According to the manufacturing method of the filter unit according to the first aspect of the present invention, laser processing is performed on the bottom of the settling tank, which includes the following steps:

[0023] Obtain the actual thickness of the bottom of the sinking trough;

[0024] Adjust the power of the laser emitter according to the actual thickness dimensions;

[0025] Multiple filter holes are created by laser drilling at the bottom of the sinking tank using a laser emitter.

[0026] According to the manufacturing method of the filter unit according to the first aspect embodiment of the present invention, the filter unit further includes a second frame, the second frame being coupled to the side of the filter element opposite to the first frame, and the second frame having a second perforation; the manufacturing method further includes the following steps:

[0027] The second frame is combined with the side of the filter element opposite to the first frame, wherein the second perforation is connected to each filter hole in at least one sinking groove.

[0028] According to the manufacturing method of the filter unit according to the first aspect of the present invention, a plurality of filter holes at the bottom of the sink tank are arranged in an array.

[0029] The filter unit provided in the second aspect of the present invention is manufactured using the manufacturing method provided in the first aspect of the present invention.

[0030] The filtering assembly provided according to a third aspect of the present invention includes a plurality of filtering units provided in the second aspect of the present invention, and the plurality of filtering units are arranged in a composite manner in sequence.

[0031] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0033] Figure 1 This is a flowchart illustrating a method for manufacturing a filter unit according to an embodiment of the present invention;

[0034] Figure 2 This is a flowchart illustrating the composite assembly of a first frame and a filter element according to an embodiment of the present invention;

[0035] Figure 3 This is a flowchart illustrating the process of applying adhesive to filter ribs according to an embodiment of the present invention;

[0036] Figure 4This is a flowchart illustrating laser processing of the bottom of a sinking trough according to an embodiment of the present invention;

[0037] Figure 5 This is an exploded view of a filter unit according to an embodiment of the present invention;

[0038] Figure 6 for Figure 5 A partial enlarged view of the structure at point A of the filter unit shown;

[0039] Figure 7 This is a schematic diagram of the structure of a filtering component according to an embodiment of the present invention.

[0040] Figure label:

[0041] Filter unit 100; first frame 110; first perforation 111; receiving groove 112; filter element 120; sink trough 121; filter rib 122; second frame 130; second perforation 131. Detailed Implementation

[0042] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0043] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0044] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0045] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0046] The following is for reference. Figures 1 to 6The manufacturing method of the filter unit 100 of the first aspect of this application will be described in detail.

[0047] refer to Figure 1 The manufacturing method of the filter unit 100 according to an embodiment of the present invention includes, but is not limited to, the following steps:

[0048] Step S100: Multiple recessed grooves 121 are machined on the surface of the filter element 120, and filter ribs 122 are formed along the groove edges of the recessed grooves 121.

[0049] Step S200: Laser processing is performed on the bottom of the sinking tank 121 to penetrate the bottom of the sinking tank 121 and to form multiple filter holes on the bottom of the sinking tank 121.

[0050] Step S400: Combine the first frame 110 and the filter element 120, wherein the first frame 110 is connected to the filter rib 122, and the first hollow hole 111 is connected to at least one sinking groove 121.

[0051] It should be noted that the reference Figure 5 The filter unit 100 includes a first frame 110 and a filter element 120 sequentially combined. The first frame 110 has a first perforation 111, and the filter element 120 has multiple filter holes. The first perforation 111 is connected to the multiple filter holes. When the filter unit 100 is working, the fluid to be filtered enters the filter holes through the first perforation 111. Substances smaller than the pore size can pass through the filter holes smoothly, while substances larger than the pore size are blocked by the filter element 120, thereby achieving fluid filtration. With the development of technology, the requirements for the pore size of filter holes are becoming increasingly stringent, and processing smaller filter holes on the filter element 120 has become a current requirement.

[0052] Understandably, in the manufacturing method of this application, a plurality of sinking grooves 121 are first processed on the surface of the filter element 120, and filter ribs 122 are formed along the groove edge of the sinking grooves 121. Then, the bottom of the sinking grooves 121 is laser-processed to penetrate the bottom of the sinking grooves 121, and a plurality of filter holes are formed at the bottom of the sinking grooves 121. Then, the first frame 110 and the filter element 120 are combined, wherein the first frame 110 is connected to the filter ribs 122, and the first hollow hole 111 is connected to at least one sinking groove 121. In this application, multiple sinking grooves 121 are machined on the surface of the filter element 120, and filter holes are then laser-machined at the bottom of the sinking grooves 121. Since the bottom of the sinking grooves 121 is thinner than the entire filter element 120, when laser-machined at the bottom of the sinking grooves 121, the laser power can be set to be smaller while ensuring that the laser can penetrate the bottom of the sinking grooves 121 normally. As a result, the size of the filter holes machined on the bottom of the sinking grooves 121 can be smaller.

[0053] It is understandable that by machining a sinking groove 121 on the surface of the filter element 120, the thickness of the filter element 120 is reduced only at the bottom of the sinking groove 121, while the overall thickness of the filter element 120 remains unchanged, so that the filter element 120 as a whole still has strong overall strength.

[0054] In some embodiments of the present invention, reference is made to Figure 2 Step S400 includes, but is not limited to, the following steps:

[0055] Step S410: Apply glue to the filter ribs 122;

[0056] Step S420: Adhesion is applied between the filter rib 122 and the first frame 110.

[0057] It is understandable that the filter rib 122 has a relatively small width. If the connection between the filter rib 122 and the first frame 110 is achieved by welding, not only is the welding operation difficult, but the high temperature and impurities during the welding process can easily cause deformation and blockage of the filter pores. In this embodiment, the filter rib 122 and the first frame 110 are bonded together with adhesive, which makes the connection between the filter element 120 and the first frame 110 easier and has less impact on the filter pores on the filter element 120.

[0058] It should be noted that after the glue is applied to the filter rib 122, when the filter rib 122 and the first frame 110 are bonded together, the glue is easily squeezed between the filter rib 122 and the first frame 110. After the overflowing glue flows to the bottom of the sink trough 121, it can easily cause blockage of the filter holes.

[0059] Based on the above problems, in a further embodiment of the present invention, reference is made to... Figure 3 Step S410 includes, but is not limited to, the following steps:

[0060] Step S411: Obtain the first width dimension D1 of the filter rib 122;

[0061] Step S412: Obtain the second width dimension D2 based on the first width dimension D1, wherein the value of D2 is between 0.6D1 and 0.8D1;

[0062] Step S413: Apply glue with a coverage width of the second width dimension D2 to the surface of the filter rib 122.

[0063] It is understood that the filter rib 122 has a first width dimension D1, and the adhesive applied to the filter rib 122 has a second width dimension D2. Since the value of D2 is between 0.6D1 and 0.8D1, when the filter rib 122 and the first frame 110 are attached, there is extra space between the filter rib 122 and the first frame 110 to accommodate the overflowing adhesive. While ensuring that the adhesive can fill the area between the filter rib 122 and the first frame 110 as completely as possible, the amount of adhesive overflowing into the sink trough 121 can be reduced. Thus, while ensuring a stable bond between the filter rib 122 and the first frame 110, the impact of the adhesive on the filter holes can be reduced to ensure the yield of the filter holes.

[0064] In some embodiments of the present invention, reference is made to Figure 1 Before step S400, the following steps may also be included, but are not limited to:

[0065] Step S300: A receiving groove 112 for accommodating the filter rib 122 is machined on the first frame 110.

[0066] It should be noted that although the overall thickness of the filter element 120 is not reduced by setting the sink groove 121 on the filter element 120, it will still affect the overall strength of the filter element 120, making the overall strength of the filter element 120 decrease. At this time, the filter element 120 is difficult to withstand the strong impact of the fluid when filtering.

[0067] Understandably, reference Figure 5 and Figure 6By machining a receiving groove 112 on the first frame 110 to accommodate the filter ribs 122, the filter ribs 122 of the filter element 120 in the filter unit 100 can pass through the receiving groove 112 of the first frame 110. On the one hand, the connection between the first frame 110 and the filter element 120 can be tighter, thereby reducing the thickness of the entire filter unit 100. On the other hand, the increased tightness of the connection between the first frame 110 and the filter element 120 makes the entire filter unit 100 have higher strength. With the assistance of the first frame 110, the filter element 120 has higher impact resistance. Therefore, even if the filter element 120 is provided with a sinkhole 121, the filter element 120 still has high strength when the filter unit 100 is working.

[0068] In some embodiments of the present invention, reference is made to Figure 4 Step S200 includes, but is not limited to, the following steps:

[0069] Step S210: Obtain the actual thickness of the bottom of the sinking trough 121;

[0070] Step S220: Adjust the power of the laser emitter according to the actual thickness dimensions;

[0071] Step S230: Laser drilling is performed on the bottom of the sinking tank 121 using a laser emitter to create multiple filter holes on the bottom of the sinking tank 121.

[0072] It should be noted that when the laser emitter performs laser drilling on the filter element 120, if the power of the laser emitter is too low, the laser emitted by the laser emitter will be unable to penetrate the filter element 120. If the power of the laser generator is too high, the diameter of the filter hole drilled by the laser emitter on the filter element 120 will be too large and will be difficult to meet the usage standards.

[0073] It is understandable that by obtaining the actual thickness of the bottom of the sink 121, and then adjusting the power of the laser emitter according to the actual thickness, the power of the laser emitter can be adapted to the actual thickness of the bottom of the sink 121. When the laser emitter performs laser drilling on the bottom of the sink 121, the laser emitted by the laser emitter can penetrate the bottom of the sink 121 just and stably. This ensures that the filter holes drilled on the filter element 120 have a small aperture and that the filter holes on the filter element 120 are through holes.

[0074] In some embodiments of the present invention, reference is made to Figure 5 The filter unit 100 also includes a second frame 130, which is combined with the side of the filter element 120 opposite to the first frame 110. The second frame 130 is provided with a second perforation 131. (Reference) Figure 1The manufacturing method also includes, but is not limited to, the following steps:

[0075] Step S500: Combine the second frame 130 with the side of the filter element 120 away from the first frame 110, wherein the second perforated hole 131 is connected to each filter hole in at least one sinking groove 121.

[0076] It is understandable that by setting the second frame 130, the second frame 130 can cooperate with the first frame 110 to clamp the filter element 120, thereby increasing the strength of the filter element 120 and making the entire filter unit 100 have higher strength.

[0077] In some embodiments of the present invention, the multiple filter holes at the bottom of the sink trough 121 are arranged in an array.

[0078] It is understandable that by distributing the multiple filter holes at the bottom of the sink 121 in an array, the arrangement of the multiple filter holes at the bottom of the sink 121 becomes more regular and uniform.

[0079] The filter unit 100 provided according to the second aspect embodiment of the present invention is manufactured using the manufacturing method provided in the first aspect embodiment of the present invention.

[0080] The following is for reference. Figure 7 The filtering component provided in the third aspect embodiment of the present invention will be described in detail.

[0081] refer to Figure 7 According to a third aspect embodiment of the present invention, the filtering assembly includes a plurality of filtering units 100 provided in a second aspect embodiment of the present invention, and the plurality of filtering units 100 are arranged in a composite manner in sequence.

[0082] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for manufacturing a filter unit, characterized in that, For manufacturing a filter unit, the filter unit includes a first frame and a filter element sequentially laminated together, the first frame having a first perforation; the manufacturing method includes the following steps: Multiple recessed grooves are machined on the surface of the filter element, and the groove edges of the recessed grooves form filter ribs; The bottom of the sinking trough is laser-processed to penetrate the bottom of the sinking trough and to form multiple filter holes in the bottom of the sinking trough. The first frame and the filter element are combined, wherein the first frame is connected to the filter rib, and the first perforation is connected to at least one of the sinking grooves.

2. The method for manufacturing a filter unit according to claim 1, characterized in that, The process of combining the first frame and the filter element includes the following steps: Apply glue to the filter ribs; The adhesive is used to bond the filter ribs to the first frame.

3. The method for manufacturing a filter unit according to claim 2, characterized in that, Applying adhesive to the filter ribs includes the following steps: Obtain the first width dimension D1 of the filter rib; The second width dimension D2 is obtained based on the first width dimension D1, wherein the value of D2 is between 0.6D1 and 0.8D1; Apply the adhesive to the surface of the filter rib, covering a width equal to the second width dimension D2.

4. A method for manufacturing a filter unit according to claim 2, characterized in that, Before combining the first frame and the filter element, the method further includes the following steps: A receiving groove for accommodating the filter rib is machined on the first frame.

5. A method for manufacturing a filter unit according to claim 4, characterized in that, The process of bonding the filter rib and the first frame together using the adhesive includes the following steps: Insert the filter rib into the receiving groove; The adhesive is used to bond the filter ribs to the wall of the receiving groove.

6. A method for manufacturing a filter unit according to claim 1, characterized in that, The laser processing of the bottom of the sinking trough includes the following steps: Obtain the actual thickness of the bottom of the sinking trough; Adjust the power of the laser emitter according to the actual thickness dimensions; The laser emitter is used to laser-drill holes in the bottom of the sinking trough to create multiple filter holes.

7. A method for manufacturing a filter unit according to claim 1, characterized in that, The filter unit further includes a second frame, which is coupled to the side of the filter element opposite to the first frame, and the second frame is provided with a second perforation; the manufacturing method further includes the following steps: The second frame is combined with the side of the filter element opposite to the first frame, wherein the second perforation is connected to each of the filter holes in at least one of the sinking grooves.

8. A method for manufacturing a filter unit according to claim 1, characterized in that, The multiple filter holes at the bottom of the sinking trough are arranged in an array.

9. A filter unit, characterized in that, It is manufactured using the manufacturing method described in any one of claims 1 to 8.

10. A filter assembly, characterized in that, It includes multiple filtering units as described in claim 9, and the multiple filtering units are arranged in a composite manner in sequence.

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