Method for manufacturing flexible electrostatic sheet with multiple electric fields and electrostatic filter

Abstract

The application discloses a flexible electrostatic sheet manufacturing method with multiple electric fields and an electrostatic filter. The method comprises the following steps: step one, providing a first flexible electric insulating part; step two, fixing a conductive coating layer on the first flexible electric insulating part (1), the conductive coating layer forms an upper conductive connecting layer, a lower conductive connecting layer, a first electrode layer and a second electrode layer; the upper conductive connecting layer is communicated with all the first electrode layers, and the lower conductive connecting layer is communicated with all the second electrode layers; step three, providing a second flexible electric insulating part, and pasting the second flexible electric insulating part on the first flexible electric insulating part to make the conductive coating layer be sandwiched between the two flexible parts and form a flexible electrostatic sheet; a plurality of polar plates are formed on the flexible electrostatic sheet; and step four, cutting a separation joint between two adjacent polar plates on the flexible electrostatic sheet. The electrostatic filter is formed by folding the flexible electrostatic sheet manufactured by the method.

Description

TECHNICAL FIELD

[0001] The present application relates to a flexible electrostatic sheet manufacturing method with multiple electric fields and an electrostatic filter. BACKGROUND

[0002] At present, the common electrostatic filter generally forms several parallel and independent electrostatic fields by arranging multiple substrates in parallel or folding flexible electrostatic sheets, and adsorbs particulate matters in the air by the electrostatic fields. In order to better adsorb particulate matters in the air, the area of the electrostatic field is often increased by increasing the depth. However, in order to maintain the strength of the electrostatic field, the number of charges on the electrode plate will increase with the increase of the area under the condition of constant voltage, which will easily cause uneven distribution of charges and result in local breakdown caused by too strong local electrostatic field strength.

[0003] Therefore, how to overcome the above-mentioned defects has become an important task for the technical personnel in the field to solve. SUMMARY

[0004] The present application overcomes the shortcomings of the above-mentioned technology and provides a flexible electrostatic sheet manufacturing method with multiple electric fields.

[0005] In order to achieve the above-mentioned purpose, the following technical solutions are adopted in the present application:

[0006] A flexible electrostatic sheet manufacturing method with multiple electric fields comprises the following steps:

[0007] Step one: providing a first flexible electric insulating part 1;

[0008] Step two: fixing a conductive coating layer on the first flexible electric insulating part 1, which forms an upper conductive connection layer 2 on the upper side of the first flexible electric insulating part 1, a lower conductive connection layer 3 on the lower side of the first flexible electric insulating part 1, a plurality of first electrode layers 4 and second electrode layers 5 distributed at intervals on the left and right sides;

[0009] The upper conductive connection layer 2 and all the first electrode layers 4 are connected as a whole through the conductive coating layer, and the lower conductive connection layer 3 and all the second electrode layers 5 are connected as a whole through the conductive coating layer;

[0010] Step three: providing a second flexible electric insulating part 6, and coating a layer of glue on the surface of the second flexible electric insulating part 6, and pasting the second flexible electric insulating part 6 to the first flexible electric insulating part 1 to make the first electrode layer 4, the second electrode layer 5, the upper conductive connection layer 2 and the lower conductive connection layer 3 sandwiched between the two flexible parts, thereby forming a flexible electrostatic sheet 8;

[0011] The flexible electrostatic sheet 8 is provided with a plurality of polar plates 81, each of which contains a plurality of first electrode layers 4 and second electrode layers 5 arranged at intervals, and each of which contains at least two electrode layers and has the same number of electrode layers, and the polar plate 81 regions do not overlap with each other.

[0012] Step four: cutting a separation seam 7 between two adjacent polar plates 81 on the flexible electrostatic sheet 8;

[0013] The separation seam 7 includes a vertical segment 71 extending upward and downward, and the vertical segment 71 is further provided with a horizontal segment 72 extending left and right at the upper and lower ends thereof.

[0014] Preferably, the upper conductive connection layer 2 and the lower conductive connection layer 3 can be externally connected to a circuit to facilitate the first electrode layer 4 and the second electrode layer 5 to have different polarities, and the first flexible electrically insulating part 1 is provided with an insulating edge 11 extending beyond the upper conductive connection layer 2 and the lower conductive connection layer 3 on the upper side and the lower side.

[0015] Preferably, the first electrode layer 4 and the second electrode layer 5 have a width greater than the width of the horizontal segment 72 extending left and right, the vertical segment 71 is located at the center between the two electrode layers, and the flexible electrostatic sheet 8 is folded along the separation seam 7, so that the left and right ends of the horizontal segment 72 are folded edges.

[0016] Preferably, in step two, the width, height and position of the first electrode layer 4, the second electrode layer 5, the upper conductive connection layer 2 and the lower conductive connection layer 3 can be independently adjusted.

[0017] Preferably, the manufacturing method further comprises step five: repeatedly folding the flexible electrostatic sheet 8 in a zigzag shape along the separation seam 7.

[0018] Preferably, the horizontal segment 72 is a straight seam extending left and right, or the horizontal segment 72 is a V-shaped seam gradually extending outward from the vertical segment 71 to both sides.

[0019] An electrostatic filter with multiple electric fields is formed by folding the flexible electrostatic sheet manufactured by the above-mentioned manufacturing method.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] 1. Compared to conventional independent plate filters and pleated filters, the flexible electrostatic sheet in this design, after being folded, forms at least two electrode layers in each plate. This allows for the creation of multiple electric fields distributed front-to-back between the plates when the flexible electrostatic sheet is energized. This effectively increases the depth of the electric field for adsorbing particulate matter. Furthermore, because these multiple electric fields are formed through different electrode layers, it avoids exacerbating uneven charge distribution caused by simultaneously increasing the electrode layer area while increasing the electric field depth, thus reducing the occurrence of localized breakdown. Simultaneously, the multiple electric fields distributed front-to-back can superimpose, further improving dust collection efficiency.

[0022] 2. The flexible electrostatic sheet differs from conventional pleated filters in that conventional pleated filters require punching and cutting openings to create air passages, while the flexible electrostatic sheet in this design only punches separation slits. Compared to the traditional method of punching and cutting openings, this design's separation slit punching solution significantly reduces material waste in the flexible insulating component. Punching and cutting openings is a form of subtractive processing, requiring the cutting of a large area of ​​material from the flexible insulating component. Furthermore, the area of ​​the opening also occupies a significant portion of the space used for printing the electrode layer, thus reducing the utilization rate of the flexible insulating component. In contrast, this design uses separation slits to create air passages. The separation slits do not encroach on a large area of ​​the flexible insulating component, nor do they generate waste material. This greatly improves the utilization rate of the flexible insulating component's area, allowing more space to be used for printing the electrode layer. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the first flexible electrical insulation component in this case after the conductive coating has been fixed.

[0024] Figure 2 This is one of the schematic diagrams of the electrostatic sheet after the separation seam was punched out in this case, where the transverse section is a straight seam.

[0025] Figure 3 This is a schematic diagram of the electrostatic sheet after it has been folded in this case.

[0026] Figure 4 This is one of the top-view schematic diagrams of the charge distribution when the electrostatic sheet in this case is working, in which each plate contains two electrode layers and shows the electric field between the two plates.

[0027] Figure 5 This is the second schematic diagram of the electrostatic sheet after the separation seam was punched out in this case, where the horizontal section is a V-shaped seam.

[0028] Figure 6 This is the second top-view schematic diagram of the charge distribution when the electrostatic sheet in this case is working, in which each plate contains three electrode layers and shows the electric field between two of the plates.

[0029] Figure 7is a top view of the charge distribution of the electrostatic sheet when in operation, wherein each electrode plate comprises four electrode layers and shows the electric field between two electrode plates. DETAILED DESCRIPTION

[0030] The features of the present application and other related features are further described by way of example in the following embodiments, which assist in a

[0031] As shown in the drawings, a method for manufacturing a flexible electrostatic sheet with multiple electric fields comprises the following steps: Figures 1 to 7

[0032] Step one: provide a first flexible electrically insulating member 1, which is generally a rectangular long strip-shaped insulating member, generally a PET film or a PVC film, which is a roll-shaped material.

[0033] Step two: print a conductive coating on the first flexible electrically insulating member 1 by a printing machine, pull out the PET film or the PVC film and lead it to the printing machine, which can print a conductive coating, the material of the conductive coating is generally conductive ink. The shape pattern layer is designed as needed, and the shape needed for printing is input into the printing machine in advance. In other embodiments, the conductive coating can also be fixed on the first flexible electrically insulating member 1 by electroplating, pasting or silk printing.

[0034] After printing, the shape pattern layer forms an upper conductive connection layer 2 on the upper side of the first flexible electrically insulating member 1, a lower conductive connection layer 3 on the lower side of the first flexible electrically insulating member 1, a plurality of first electrode layers 4 and second electrode layers 5 distributed at intervals on the left and right.

[0035] Since it is printed, all the first electrode layers 4 are electrically connected with the upper conductive connection layer 2 and connected as a whole, and all the second electrode layers 5 are electrically connected with the lower conductive connection layer 3 and connected as a whole. Since it is a whole, the yield of electrical connection is very high, and there is no problem of electrical connection failure.

[0036] Step three: provide a second flexible electrically insulating member 6 and coat a layer of glue on the surface of the second flexible electrically insulating member 6. Paste the second flexible electrically insulating member 6 to the first flexible electrically insulating member 1 to sandwich the first electrode layers 4, the second electrode layers 5, the upper conductive connection layer 2 and the lower conductive connection layer 3 between the two flexible members. Then press and dry to form a flexible electrostatic sheet 8, wherein a plurality of electrode plates 81 are formed on the flexible electrostatic sheet 8, each electrode plate 81 region contains a plurality of first electrode layers 4 and second electrode layers 5 distributed at intervals, the number of electrode layers in each electrode plate 81 region is the same and at least two electrode layers, and the electrode plate 81 regions do not overlap with each other.

[0037] ​Step four: cut a separation slit 7 between two adjacent electrode plates 81 on the flexible electrostatic sheet 8; the separation slit 7 includes vertical segments 71 extending upward and downward, and horizontal segments 72 extending left and right at the upper and lower ends of the vertical segments 71.

[0038] The length of the vertical segments 71 is greater than the height of the electrode layers in the upward and downward directions, but the ends of the vertical segments 71 do not extend to the corresponding conductive connection layers.

[0039] In this case, the first electrode layers 4 are electrically connected together through the upper conductive connection layer 2, and the second electrode layers 5 are electrically connected together through the lower conductive connection layer 3. According to the specific product needs, flexible electrostatic sheets 8 of different lengths can be cut, and then the flexible electrostatic sheets 8 are Z-folded with the separation slit 7 as the folding edge, so that the flexible electrostatic sheets 8 are folded into the desired shape. In this way, by folding the flexible electrostatic sheets 8, the electrode plates 81 can be opposite to each other, and each electrode plate 81 has at least one first electrode layer 4 and one second electrode layer 5. The first electrode layer 4 / second electrode layer 5 on each electrode plate 81 is opposite to the second electrode layer 5 / first electrode layer 4 on the adjacent electrode plate 81. In this way, by connecting the upper conductive connection layer 2 and the lower conductive connection layer 3 to different electrodes, an electric field for adsorbing particulate matter can be formed between the electrode plates 81. At the same time, the separation slit 7 between adjacent electrode plates 81 will be opened into an opening 82 for air to pass between adjacent electrode plates 81 after folding.

[0040] Compared with conventional independent electrode plate filters and folded filters, each electrode plate 81 formed by folding the flexible electrostatic sheet of the present case has at least two electrode layers. In this way, when the flexible electrostatic sheet is powered on, multiple electric fields can be formed between the electrode plates 81, which can effectively increase the depth of the electric field for adsorbing particulate matter. At the same time, since the multiple electric fields are formed by different electrode layers, the uneven distribution of electric charge caused by the simultaneous increase in the area of the electrode layers can be avoided, thereby reducing the occurrence of local breakdown. At the same time, the multiple electric fields can be superimposed on each other, thereby further improving the dust collection efficiency.

[0041] In addition, the flexible electrostatic sheet of the present application is different from the conventional folded filter in that the conventional folded filter needs to be punched to form openings for air to pass through, while the flexible electrostatic sheet of the present application is only punched to form the separation slit 7. Compared with the conventional punching method, the punching method of the present application can greatly reduce the material loss of the flexible insulating member. The punching method is a subtractive process, which needs to punch a large area of material from the flexible insulating member, and the area of the punched opening also occupies a large space for printing the electrode layer, thereby reducing the utilization rate of the flexible insulating member. In the present application, the separation slit 7 is opened to form an opening for air to pass through, and the separation slit 7 does not occupy a large area of the flexible insulating member and does not punch out waste material, which can greatly improve the utilization rate of the area of the flexible insulating member and use more area for printing the electrode layer.

[0042] As shown in Figures 1 to 2 , the upper conductive connection layer 2 and the lower conductive connection layer 3 can be externally connected to a circuit to make the first electrode layer 4 and the second electrode layer 5 have different polarities, respectively. The first flexible insulating member 1 has an insulating edge 11 extending beyond the upper conductive connection layer 2 and the lower conductive connection layer 3 on the upper side and the lower side, respectively. Generally, the conductive connection layer is exposed by punching holes in the corresponding area of the electrode plate 81, and then an external circuit is connected to the exposed part of the conductive connection layer through an external wire.

[0043] As shown in Figures 1 to 4 , the first electrode layer 4 and the second electrode layer 5 have a width greater than the width of the lateral section 72 extending to the left and right, and the vertical section 71 is located at the center between the two electrode layers. The flexible electrostatic sheet 8 is folded with the separation slit 7 as the dividing line, and the left and right ends of the lateral section 72 are folded edges. In this way, the width of the opening 82 can be changed by adjusting the width of the lateral section 72, thereby changing the distance between the electrode plates 81 after folding.

[0044] In addition, the width, height and position of the first electrode layer 4, the second electrode layer 5, the upper conductive connection layer 2 and the lower conductive connection layer 3 can be independently adjusted when the conductive coating is fixed.

[0045] As shown in Figures 3 to 4 , the method for manufacturing the flexible electrostatic sheet further comprises the following step five: repeatedly folding the flexible electrostatic sheet 8 in a zigzag shape with the separation slit 7 as the dividing line.

[0046] As shown in Figure 2 and Figure 5 , the lateral section 72 is a straight line slit extending to the left and right, or the lateral section 72 is a V-shaped slit gradually extending outward from the vertical section 71 to both sides.

[0047] As shown in Figure 3As shown, an electrostatic filter with multiple electric fields is formed by folding the flexible electrostatic sheet manufactured by the flexible electrostatic sheet manufacturing method with multiple electric fields.

[0048] As described above, the present application protects a flexible electrostatic sheet manufacturing method with multiple electric fields and an electrostatic filter. All technical solutions identical or similar to the present application shall be shown to fall within the protection scope of the present application.

Claims

1. A method of manufacturing a flexible electrostatic sheet with multiple electric fields, characterized by The method comprises the following steps: Step 1: providing a first flexible electrically insulating member (1); Step 2: fixing a conductive coating layer on the first flexible electrically insulating member (1), the conductive coating layer forming an upper conductive connection layer (2) on the upper side of the first flexible electrically insulating member (1), a lower conductive connection layer (3) on the lower side of the first flexible electrically insulating member (1), a plurality of first electrode layers (4) and second electrode layers (5) distributed at intervals left and right; The upper conductive connection layer (2) and all the first electrode layers (4) are connected as a whole by the conductive coating layer, and the lower conductive connection layer (3) and all the second electrode layers (5) are connected as a whole by the conductive coating layer; Step 3: providing a second flexible electrically insulating member (6) and coating a layer of glue on the surface of the second flexible electrically insulating member (6), and pasting the second flexible electrically insulating member (6) to the first flexible electrically insulating member (1) to sandwich the first electrode layers (4), the second electrode layers (5), the upper conductive connection layer (2) and the lower conductive connection layer (3) between the two flexible members, thereby forming a flexible electrostatic sheet (8); The flexible electrostatic sheet (8) is formed with a plurality of polar plates (81), each of which contains a plurality of first electrode layers (4) and second electrode layers (5) distributed at intervals, the number of electrode layers in each polar plate (81) region is the same and at least two electrode layers, and the polar plate (81) regions do not overlap with each other; Step 4: cutting a separation joint (7) between two adjacent polar plates (81) on the flexible electrostatic sheet (8); The separation joint (7) comprises a vertical segment (71) extending upward and downward, and the vertical segment (71) is further provided with a horizontal segment (72) extending left and right at the upper and lower ends thereof.

2. The method of claim 1, wherein the flexible electrostatic sheet with multiple electric fields is manufactured by the steps of: The upper conductive connection layer (2) and the lower conductive connection layer (3) can be respectively connected to an external circuit to facilitate the first electrode layers (4) and the second electrode layers (5) to have different polarities, and the first flexible electrically insulating member (1) is provided with insulating edges (11) extending beyond the upper conductive connection layer (2) and the lower conductive connection layer (3) on the upper side and the lower side respectively. ​ 3. The method for manufacturing a flexible electrostatic sheet with multiple electric fields according to claim 1, characterized in that... The widths of the first electrode layers (4) and the second electrode layers (5) are greater than the widths of the horizontal segments (72) extending left and right, the vertical segment (71) is located at the central position between the two electrode layers, and the flexible electrostatic sheet (8) is folded with the separation joint (7) as the dividing line, so that the left and right ends of the horizontal segment (72) are the folding edges.

4. The method of claim 1, wherein the flexible electrostatic sheet with multiple electric fields is manufactured by the steps of: In step 2 of fixing the conductive coating layer, the width, height and position of the first electrode layers (4), the second electrode layers (5), the upper conductive connection layer (2) and the lower conductive connection layer (3) can be independently adjusted. ​ 5. The method of claim 1, wherein the flexible electrostatic sheet with multiple electric fields is manufactured by the steps of: It further comprises step 5: repeatedly folding the flexible electrostatic sheet (8) in a zigzag shape with the separation joint (7) as the dividing line. ​ 6. The method of claim 1, wherein the flexible electrostatic sheet with multiple electric fields is manufactured by the steps of: The horizontal segment (72) is a straight line joint extending left and right, or the horizontal segment (72) is a V-shaped joint gradually extending outward from the vertical segment (71) to both sides. ​ 7. An electrostatic filter with multiple electric fields, characterized in that The flexible electrostatic sheet is folded to form a flexible electrostatic sheet with multiple electric fields manufactured by the method of any one of claims 1 to 6.

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