Electrostatic filter with multiple electric fields

Abstract

The utility model discloses an electrostatic filter with multiple electric fields, which comprises a filter main body formed by folding a flexible electrostatic sheet, the filter main body comprises a plurality of polar plates which are arranged in parallel left and right, and an electric field and an electrostatic adsorption channel can be formed between adjacent polar plates; the flexible electrostatic sheet comprises a first flexible insulating bearing piece, a first conductive layer and a second conductive layer which are not electrically communicated with each other are arranged on the first flexible insulating bearing piece, the first conductive layer and the second conductive layer are jointly covered with a second flexible insulating bearing piece, the first conductive layer comprises a first electrode part and a first conductive connecting part, and the second conductive layer comprises a second electrode part and a second conductive connecting part. The first conductive layer comprises a first electrode part and a first conductive connecting part, the second conductive layer comprises a second electrode part and a second conductive connecting part, the first electrode part and the second electrode part are alternately arranged, each polar plate area comprises at least two adjacent electrode parts, the number of the electrode parts in each polar plate area is the same, and a separation seam is formed between every two adjacent polar plate areas on the flexible electrostatic sheet. And the flexible electrostatic sheet is folded at the separation seam.

Description

Technical Field

[0001] This utility model relates to an electrostatic filter, and more particularly to an electrostatic filter with multiple electric fields. Background Technology

[0002] Currently, common electrostatic filters typically use multiple substrates arranged side-by-side or folded flexible electrostatic sheets to form several parallel and independent electrostatic fields, which adsorb particulate matter from the air. To better adsorb particulate matter, the depth is often increased to increase the area of ​​the electrostatic field. However, to maintain the electrostatic field strength, with a constant voltage, the number of charges on the plates increases with the area, which can easily lead to uneven charge distribution, causing excessively strong electrostatic fields in some areas and resulting in localized breakdown.

[0003] Therefore, overcoming the aforementioned shortcomings has become an important issue that urgently needs to be addressed by those skilled in the art. Utility Model Content

[0004] This invention overcomes the shortcomings of the above-mentioned technologies and provides an electrostatic filter with multiple electric fields.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electrostatic filter with multiple electric fields includes a filter body 2 formed by folding a flexible electrostatic sheet 1 in a Z-shape. The filter body 2 includes several parallel plates 21 arranged horizontally. Multiple electric fields distributed front and back can be formed between adjacent plates 21. Electrostatic adsorption channels 22 for air to pass through are formed between adjacent plates 21.

[0007] Preferably, the flexible electrostatic sheet 1 includes a first flexible insulating support member 11. The first flexible insulating support member 11 is provided with a first conductive layer 12 and a second conductive layer 13 that are not electrically connected to each other. The first conductive layer 12 and the second conductive layer 13 are jointly covered by a second flexible insulating support member 14. The first conductive layer 12 includes a plurality of first electrode portions 121 distributed horizontally and a first conductive connection portion 122 located at the upper end of the first flexible insulating support member 11 for electrically connecting all the first electrode portions 121. The second conductive layer 13 includes a plurality of second electrode portions 131 distributed horizontally and a first conductive connection portion 122 located at the upper end of the first flexible insulating support member 14 for electrically connecting all the first electrode portions 121. The lower end of 11 is a second conductive connection part 132 for electrically connecting all the second electrode parts 131. The first electrode part 121 and the second electrode part 131 are arranged alternately on the first flexible insulating support 11. Each electrode plate 21 region contains at least two adjacent electrode parts and the number of electrode parts in each electrode plate 21 region is the same. A separation slit 15 is provided between two adjacent electrode plate 21 regions on the flexible electrostatic sheet 1. The separation slit 15 includes a vertically extending segment 151. The vertical segment 151 has horizontally extending segments 152 at both the upper and lower ends. The flexible electrostatic sheet 1 is folded at the separation slit 15.

[0008] Preferably, the first conductive layer 12 and the second conductive layer 13 are fixed to the first flexible insulating support 11 by printing, electroplating or pasting.

[0009] Preferably, the first electrode portion 121 and the first conductive connection portion 122 of the first conductive layer 12 are integral copper, aluminum, silver or gold layers, and the second electrode portion 131 and the second conductive connection portion 132 of the second conductive layer 13 are integral copper, aluminum or silver or gold layers.

[0010] Preferably, the first flexible insulating support member 11 has insulating edges 111 extending outward beyond the corresponding conductive connection portion on both the upper and lower sides.

[0011] Preferably, the flexible electrostatic sheet 1 is a roll, so that when producing electrostatic filters of different sizes, flexible electrostatic sheets 1 of different lengths can be cut and folded as needed.

[0012] Preferably, the widths of the first electrode portion 121 and the second electrode portion 131 are both greater than the width of the horizontal segment 152 extending to the left and right, and the vertical segment 151 is located in the center between the two electrode layers.

[0013] Preferably, the transverse segment 152 is a straight seam extending left and right, or the transverse segment 152 is a V-shaped seam that gradually extends from the vertical segment 151 to both sides and outwards from the first flexible insulating support member 11.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The filter body of this electrostatic filter is formed by folding a flexible electrostatic sheet. A first conductive layer and a second conductive layer are disposed between a first flexible insulating support and a second flexible insulating support. The first conductive layer includes several first electrode portions electrically connected through first conductive connections, while the second conductive layer includes several second electrode portions electrically connected through second conductive connections. The first and second electrode portions are alternately arranged on the first flexible insulating support. Separation seams are provided between the electrode areas of the flexible electrostatic sheet. Thus, after folding the flexible electrostatic sheet in a Z-shape with the separation seams as the folding edges to form the filter body, simply connecting the first and second conductive connections to the circuit and assigning them different polarities creates multiple electric fields distributed front and back between the electrode plates. This increases the depth of the electrostatic adsorption channel while avoiding an excessively large area of ​​a single electric field. This increases the dust adsorption efficiency by increasing the depth of the electrostatic adsorption channel while avoiding the problem of uneven charge distribution and localized breakdown caused by an excessively large single electric field area. Furthermore, the multiple electric fields can superimpose to further improve dust collection efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main body of the filter in this case.

[0017] Figure 2 This is one of the top-view schematic diagrams of the charge distribution when the filter body is in operation, where each electrode plate contains two electrode sections and shows the electric field between the two electrode plates.

[0018] Figure 3 This is a schematic diagram of the first flexible insulating load-bearing component in this case.

[0019] Figure 4 This is a schematic diagram of the flexible electrostatic sheet in this case when it is not folded, where the horizontal section is a straight seam.

[0020] Figure 5 This is an explosion diagram of the flexible electrostatic sheet in this case, where the horizontal section is a straight seam.

[0021] Figure 6 This diagram shows the folded flexible electrostatic sheet, where the horizontal section is a V-shaped slit.

[0022] Figure 7 This is the second top-view schematic diagram of the charge distribution when the filter body is in operation. Each plate contains three electrode sections, and the electric field between two of the plates is shown.

[0023] Figure 8This is the third top-view schematic diagram of the charge distribution when the filter body is in operation, where each plate contains four electrode sections and shows the electric field between two of the plates. Detailed Implementation

[0024] The following examples provide a more detailed description of the features and other related characteristics of this utility model, to facilitate understanding by those skilled in the art:

[0025] like Figures 1 to 8 As shown, an electrostatic filter with multiple electric fields includes a filter body 2 formed by folding a flexible electrostatic sheet 1 in a Z-shape. The filter body 2 includes several parallel plates 21 arranged horizontally. Multiple electric fields distributed front and back can be formed between adjacent plates 21. Electrostatic adsorption channels 22 for air to pass through are formed between adjacent plates 21.

[0026] like Figures 1 to 6 As shown, the flexible electrostatic sheet 1 includes a first flexible insulating support member 11. The first flexible insulating support member 11 has a first conductive layer 12 and a second conductive layer 13 that are not electrically connected to each other. The first conductive layer 12 and the second conductive layer 13 are jointly covered by a second flexible insulating support member 14. The first conductive layer 12 includes a plurality of first electrode portions 121 distributed horizontally, and a first conductive connection portion 122 located at the upper end of the first flexible insulating support member 11 for electrically connecting all the first electrode portions 121. The second conductive layer 13 includes a plurality of second electrode portions 131 distributed horizontally, and a first conductive connection portion 122 located at the upper end of the first flexible insulating support member 14 for electrically connecting all the first electrode portions 121. The lower end of 11 is a second conductive connection part 132 for electrically connecting all the second electrode parts 131. The first electrode part 121 and the second electrode part 131 are arranged alternately on the first flexible insulating support 11. Each electrode plate 21 region contains at least two adjacent electrode parts and the number of electrode parts in each electrode plate 21 region is the same. A separation slit 15 is provided between two adjacent electrode plate 21 regions on the flexible electrostatic sheet 1. The separation slit 15 includes a vertically extending segment 151. The vertical segment 151 has horizontally extending segments 152 at both the upper and lower ends. The flexible electrostatic sheet 1 is folded at the separation slit 15.

[0027] As described above, the filter body 2 of the electrostatic filter in this case is formed by folding a flexible electrostatic sheet 1. The flexible electrostatic sheet 1 has a first conductive layer 12 and a second conductive layer 13 disposed between the first flexible insulating support 11 and the second flexible insulating support 14. The first conductive layer 12 includes a plurality of first electrode portions 121 electrically connected through a first conductive connection portion 122, and the second conductive layer 13 includes a plurality of second electrode portions 131 electrically connected through a second conductive connection portion 132. The first electrode portions 121 and the second electrode portions 131 are alternately arranged on the first flexible insulating support 11. At the same time, the flexible electrostatic sheet 1 has a separation slit 15 between the electrode plate 21 areas. Thus, after folding the flexible electrostatic sheet 1 into the filter body 2 in a Z-shape with the separation seam 15 as the folding edge, it is only necessary to connect the first conductive connection part 122 and the second conductive connection part 132 to the circuit and make them have different polarities. This will create multiple electric fields distributed front and back between the electrode plates 21. This can increase the depth of the electrostatic adsorption channel 22 while avoiding the problem of a single electric field area being too large. This can improve the dust adsorption efficiency by increasing the depth of the electrostatic adsorption channel 22, while avoiding the problem of uneven charge distribution and local breakdown caused by a single electric field area being too large. Moreover, the multiple electric fields can be superimposed on each other, thereby further improving the dust collection efficiency.

[0028] like Figure 3 As shown, the first conductive layer 12 and the second conductive layer 13 are fixed to the first flexible insulating support 11 by printing, electroplating or pasting, so as to ensure that the first conductive layer 12 and the second conductive layer 13 can be tightly attached to the first flexible insulating support 11.

[0029] like Figure 3 As shown, the first electrode portion 121 and the first conductive connection portion 122 of the first conductive layer 12 are integral copper, aluminum, silver or gold layers, and the second electrode portion 131 and the second conductive connection portion 132 of the second conductive layer 13 are integral copper, aluminum or silver or gold layers, thus ensuring that the electrode portion and conductive connection portion of each conductive layer can be electrically connected.

[0030] like Figures 3 to 4 As shown, the first flexible insulating support member 11 has insulating edges 111 extending outward beyond the corresponding conductive connection portion on both the upper and lower sides. This can prevent direct contact with the conductive layer when grasping the flexible electrostatic sheet 1, thereby reducing the probability of electric shock accidents.

[0031] Preferably, the flexible electrostatic sheet 1 is a roll, so that when producing electrostatic filters of different sizes, flexible electrostatic sheets 1 of different lengths can be cut and folded as needed.

[0032] like Figures 3 to 6As shown, the widths of the first electrode portion 121 and the second electrode portion 131 are both greater than the width of the horizontal segment 152 extending to the left and right. The vertical segment 151 is located in the center between the two electrode layers. Thus, the width of the electrostatic adsorption channel 22 can be changed by adjusting the width of the horizontal segment 152, thereby adjusting the distance between adjacent plates 21 and changing the electric field parameters.

[0033] like Figures 3 to 6 As shown, the transverse segment 152 is a straight seam extending left and right, or the transverse segment 152 is a V-shaped seam that gradually extends from the vertical segment 151 to both sides and outwards from the first flexible insulating support 11.

[0034] As stated above, this case protects an electrostatic filter with multiple electric fields, and all technical solutions that are the same as or similar to this case should be considered to fall within the scope of protection of this case.

Claims

1. An electrostatic filter with multiple electric fields, characterized in that... The filter body (2) is formed by folding a flexible electrostatic sheet (1) in a Z-shape. The filter body (2) includes several parallel plates (21) arranged in the left and right directions. Multiple electric fields distributed in front and back can be formed between adjacent plates (21). An electrostatic adsorption channel (22) for air to pass through is formed between adjacent plates (21). The flexible electrostatic sheet (1) includes a first flexible insulating support member (11), on which a first conductive layer (12) and a second conductive layer (13) that are not electrically connected are provided. A second flexible insulating support member (14) is commonly covered on the first conductive layer (12) and the second conductive layer (13). The first conductive layer (12) includes a plurality of first electrode portions (121) distributed from left to right, and a first conductive connection portion (122) located at the upper end of the first flexible insulating support member (11) for electrically connecting all the first electrode portions (121). The second conductive layer (13) includes a plurality of second electrode portions (131) distributed from left to right, and a first conductive connection portion (122) located at the upper end of the first flexible insulating support member (11). The lower end is a second conductive connection part (132) for electrically connecting all the second electrode parts (131). The first electrode part (121) and the second electrode part (131) are arranged alternately on the first flexible insulating support (11). Each electrode plate (21) region contains at least two adjacent electrode parts and the number of electrode parts in each electrode plate (21) region is the same. A separation slit (15) is provided between two adjacent electrode plate (21) regions on the flexible electrostatic sheet (1). The separation slit (15) includes a vertically extending segment (151) and a horizontally extending segment (152) is provided at both the upper and lower ends of the vertical segment (151). The flexible electrostatic sheet (1) is folded at the separation slit (15).

2. The electrostatic filter with multiple electric fields according to claim 1, characterized in that... The first conductive layer (12) and the second conductive layer (13) are fixed to the first flexible insulating carrier (11) by printing, electroplating or pasting.

3. An electrostatic filter with multiple electric fields according to any one of claims 1 or 2, characterized in that... The first electrode portion (121) and the first conductive connection portion (122) of the first conductive layer (12) are an integral copper layer, aluminum layer, silver layer or gold layer, and the second electrode portion (131) and the second conductive connection portion (132) of the second conductive layer (13) are an integral copper layer, aluminum layer, silver layer or gold layer.

4. An electrostatic filter with multiple electric fields according to claim 1, characterized in that... The first flexible insulating support member (11) has insulating edges (111) extending outward beyond the corresponding conductive connection portion on both the upper and lower sides.

5. An electrostatic filter with multiple electric fields according to claim 1, characterized in that... The flexible electrostatic sheet (1) is a roll.

6. An electrostatic filter with multiple electric fields according to claim 1, characterized in that... The width of the first electrode portion (121) and the second electrode portion (131) is greater than the width of the horizontal segment (152) extending to the left and right, and the vertical segment (151) is located in the center between the two electrode layers.

7. An electrostatic filter with multiple electric fields according to claim 1, characterized in that... The transverse section (152) is a straight seam extending left and right, or the transverse section (152) is a V-shaped seam that gradually extends from the vertical section (151) to both sides and outwards from the first flexible insulating support (11).

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