Manufacturing method of filter unit, filter unit and filter assembly

Abstract

The invention discloses a manufacturing method of a filtering unit, the filtering unit and a filtering assembly.The manufacturing method of the filtering unit comprises the steps that a plurality of sinking grooves are machined in the surface of a filtering piece, filtering ribs are formed on the groove edges of the sinking grooves, then, laser machining is conducted on the groove bottoms of the sinking grooves so that the groove bottoms of the sinking grooves can be broken down, and therefore the filtering efficiency is improved; a plurality of filtering holes are formed in the bottoms of the sinking grooves, then the first frame and the filtering piece are combined, the first frame is connected with the filtering ribs, and the first hollowed-out holes are communicated with at least one sinking groove. According to the filtering piece, the multiple sinking grooves are machined in the surface of the filtering piece, and the groove bottoms of the sinking grooves are smaller in thickness relative to the whole filtering piece, so that when laser machining is conducted on the groove bottoms of the sinking grooves, on the premise that it is guaranteed that the laser can normally penetrate through the groove bottoms of the sinking grooves, the power of the laser can be set to be smaller; therefore, the size of the filter hole machined in the groove bottom of the sinking groove can be smaller.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filter structure manufacturing, in particular to a filter unit manufacturing method, a filter unit and a filter assembly. BACKGROUND

[0002] With the development of science and technology, filter units are increasingly widely used in various industries. The filter unit is provided with a plurality of filter holes. Substances with a size smaller than the filter hole diameter can pass through smoothly, while substances with a size larger than the filter hole diameter can be blocked by the filter unit. With the development of science and technology, the requirements for the size of the filter holes in the filter unit are becoming higher and higher.

[0003] In related technologies, in order to process filter holes with smaller sizes, a laser is usually used to process filter holes on the filter unit. However, in order to enable the laser emitter to smoothly break through the filter unit, the laser emitter needs to output a larger power. Correspondingly, when the laser generator outputs a larger power, the filter hole diameter processed by the laser emitter on the filter unit is also larger, so that the size of the filter hole on the existing filter unit cannot be further reduced. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the prior art. The present application provides a filter unit manufacturing method in the first aspect. The filter unit manufactured by the manufacturing method has filter holes with smaller sizes. The present application also provides a filter unit in the second aspect. The present application also provides a filter assembly in the third aspect.

[0005] The filter unit manufacturing method according to the first aspect of the present application is used to manufacture a filter unit. The filter unit includes a first frame and a filter piece which are sequentially compounded. The first frame is provided with a first hollow hole. The manufacturing method includes the following steps: A plurality of sinking grooves are processed on the surface of the filter piece. The groove of the sinking groove forms a filter rib; The groove bottom of the sinking groove is processed by laser to break through the groove bottom of the sinking groove and process a plurality of filter holes on the groove bottom of the sinking groove; The first frame and the filter piece are compounded. The first frame is connected with the filter rib, and the first hollow hole is connected with at least one sinking groove.

[0006] The manufacturing method of the filter unit has at least the following beneficial effects: in the manufacturing method of the filter unit, a plurality of sunken grooves are first processed on the surface of the filter piece, groove walls of the sunken grooves form filter ribs, then the groove bottoms of the sunken grooves are processed by laser to break through the groove bottoms of the sunken grooves and form a plurality of filter holes on the groove bottoms of the sunken grooves, and then the first frame and the filter piece are combined, wherein the first frame is connected with the filter ribs, and the first hollow hole is connected with at least one sunken groove. In this application, a plurality of sunken grooves are processed on the surface of the filter piece, and then filter holes are processed on the groove bottoms of the sunken grooves by laser. Since the groove bottoms of the sunken grooves have a smaller thickness dimension relative to the entire filter piece, the power of the laser can be set smaller when the groove bottoms of the sunken grooves are processed by laser, while ensuring that the laser can normally penetrate the groove bottoms of the sunken grooves, so that the size of the filter holes processed on the groove bottoms of the sunken grooves can be smaller.

[0007] According to the manufacturing method of the filter unit of the first aspect of the present application, the combination of the first frame and the filter piece comprises the following steps: Coating glue on the filter ribs; Realizing the adhesion between the filter ribs and the first frame by the glue.

[0008] According to the manufacturing method of the filter unit of the first aspect of the present application, the coating of glue on the filter ribs comprises the following steps: Obtaining a first width dimension D1 of the filter ribs; Obtaining a second width dimension D2 according to the first width dimension D1, wherein the value range of D2 is between 0.6D1 and 0.8D1; Coating glue with a covering width of the second width dimension D2 on the surface of the filter ribs.

[0009] According to the manufacturing method of the filter unit of the first aspect of the present application, before the combination of the first frame and the filter piece, the following steps are further included: Processing a containing groove for accommodating the filter ribs on the first frame.

[0010] According to the manufacturing method of the filter unit of the first aspect of the present application, the adhesion between the filter ribs and the first frame is realized by the glue, comprising the following steps: Inserting the filter ribs into the containing groove; Realizing the adhesion between the filter ribs and the groove wall of the containing groove by the glue.

[0011] According to the manufacturing method of the filter unit of the first aspect of the present application, the laser processing of the groove bottoms of the sunken grooves comprises the following steps: Obtaining an actual thickness dimension of the groove bottoms of the sunken grooves; Adjust the power of the laser emitter according to the actual thickness size; The laser emitter is used to perforate the bottom of the sunken groove to form a plurality of filtering holes on the bottom of the sunken groove.

[0012] According to the manufacturing method of the filter unit in the embodiment of the first aspect of the present application, the filter unit further comprises a second frame, the second frame is combined with the side of the filter element away from the first frame, and the second frame is provided with a second hollow hole; the manufacturing method further comprises the following steps: The second frame is combined with the side of the filter element away from the first frame, and the second hollow hole is in communication with each filtering hole in the at least one sunken groove.

[0013] According to the manufacturing method of the filter unit in the embodiment of the first aspect of the present application, the plurality of filtering holes on the bottom of the sunken groove are arranged in an array.

[0014] According to the filter unit in the embodiment of the second aspect of the present application, the filter unit is manufactured by the manufacturing method in the embodiment of the first aspect of the present application.

[0015] According to the filter assembly in the embodiment of the third aspect of the present application, the filter assembly comprises a plurality of filter units provided in the embodiment of the second aspect of the present application, and the plurality of filter units are sequentially combined.

[0016] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in conjunction with the drawings and embodiments; Figure 1 The flow chart of the manufacturing method of the filter unit in an embodiment of the present application; Figure 2 The flow chart of the combination of the first frame and the filter element in an embodiment of the present application; Figure 3 The flow chart of the coating of the glue on the filter rib in an embodiment of the present application; Figure 4 The flow chart of the laser processing on the bottom of the sunken groove in an embodiment of the present application; Figure 5 The exploded schematic view of the filter unit in an embodiment of the present application; Figure 6 The structure of the filter unit shown in the embodiment of the present application; Figure 5 The local enlarged view of the structure at A of the filter unit shown in the embodiment of the present application; Figure 7 The structure schematic view of the filter assembly in an embodiment of the present application.

[0018] REFERENCE NUMERALS: 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

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] The following is for reference. Figures 1 to 6 The manufacturing method of the filter unit 100 of the first aspect of this application will be described in detail.

[0024] 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: 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. 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. 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] In some embodiments of the present invention, reference is made to Figure 2 Step S400 includes, but is not limited to, the following steps: Step S410: Apply glue to the filter ribs 122; Step S420: Adhesion is applied between the filter rib 122 and the first frame 110.

[0029] 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.

[0030] 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.

[0031] 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: Step S411: Obtain the first width dimension D1 of the filter rib 122; 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; Step S413: Apply glue with a coverage width of the second width dimension D2 to the surface of the filter rib 122.

[0032] 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.

[0033] 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: Step S300: A receiving groove 112 for accommodating the filter rib 122 is machined on the first frame 110.

[0034] 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.

[0035] Understandably, reference Figure 5 and Figure 6 By 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.

[0036] In some embodiments of the present invention, reference is made to Figure 4 Step S200 includes, but is not limited to, the following steps: Step S210: Obtain the actual thickness of the bottom of the sinking trough 121; Step S220: Adjust the power of the laser emitter according to the actual thickness dimensions; 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.

[0037] 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.

[0038] 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.

[0039] 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 1 The manufacturing method also includes, but is not limited to, the following steps: 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.

[0040] 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.

[0041] In some embodiments of the present invention, the multiple filter holes at the bottom of the sink trough 121 are arranged in an array.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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 of manufacturing a filter unit, characterized by, A method for manufacturing a filter unit, 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: 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. A method of 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. A method of manufacturing a filter unit according to claim 2, wherein, 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. The method of manufacturing a filter unit according to claim 2, wherein 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 of manufacturing a filter unit according to claim 4, wherein, 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. The method of claim 1, wherein 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. The method of claim 1, wherein 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. The method of claim 1, wherein The multiple filter holes at the bottom of the sinking trough are arranged in an array.

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

10. A filter assembly characterized by, 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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