Electrode plate, dust collection assembly and air purification equipment

Abstract

The invention provides an electrode plate, a dust collection assembly and air purification equipment, the electrode plate is used for the dust collection assembly, the electrode plate is a flexible electrode plate, the electrode plate comprises a flexible insulating layer, and a plurality of limiting parts arranged at intervals are arranged on the flexible insulating layer; and the conductive layer is arranged on one side of the flexible insulating layer and is connected with the flexible insulating layer. According to the electrode plate provided by the invention, enough spacing is provided between the adjacent conductive layers, the spacing between the adjacent conductive layers is ensured to be fixed, contact between the adjacent conductive layers is avoided, the stability of an electric field generated by the electrode plate is further ensured, adsorption of media such as dust is realized, and the electrode plate does not need to be fixed by additionally arranging a clamping strip or applying a hot melt adhesive; the process difficulty and the processing cost of the dust collection assembly are greatly reduced, the appearance of the dust collection assembly is not affected, meanwhile, the spacing between the adjacent conductive layers is increased due to the arrangement of the limiting parts, the dust collection area of the dust collection assembly is further increased, and the dust removal, sterilization and disinfection effects are improved.

Description

[0001] This application claims the priority of a Chinese patent application titled "Electrode Sheet, Dust Collection Assembly and Air Purification Equipment" with an application number of "2024100840898" and filed with the China National Intellectual Property Administration on January 19, 2024. The entire content thereof is incorporated herein by reference. Technical Field

[0002] The present invention relates to the technical field of household appliances, and more particularly, to an electrode sheet, a dust collection assembly and an air purification equipment. Background Art

[0003] Currently, the dust collection assembly mainly consists of multiple groups of positive and negative plates placed alternately and parallel to each other. Each group of positive and negative plates is electrically connected to a high-voltage power supply. All the positive and negative plates of the dust collection assembly are arranged at intervals, parallel to each other, and are respectively connected to the high-voltage output terminal and the low-voltage output terminal of the high-voltage power supply, resulting in a relatively complex manufacturing process and a high manufacturing cost for the integrated assembly in the related art. In addition, in controlling the distance between the positive and negative plates, the related art uses an external spacer or hot melt adhesive method, and still requires fine manual operation to maintain the uniformity and stability of the plate spacing. The process is complex and the electric field is unstable, thus affecting the dust collection and purification effects of the dust collection assembly. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To this end, a first aspect of the present invention provides an electrode sheet.

[0006] A second aspect of the present invention further provides a dust collection assembly.

[0007] A third aspect of the present invention further provides an air purification equipment.

[0008] In view of this, a first aspect of the present invention proposes an electrode sheet for a dust collection assembly. The electrode sheet is a flexible electrode sheet, and the electrode sheet includes: a flexible insulating layer, on which a plurality of spaced-apart limiting portions are provided; and a conductive layer, provided on one side of the flexible insulating layer and connected to the flexible insulating layer.

[0009] The electrode sheet provided by the present invention includes a flexible insulating layer and a conductive layer. The electrode sheet is a flexible electrode sheet, enabling the overall electrode sheet to be deformed into various forms, thereby forming different electric field shapes to meet the requirements of different electric field forms of the dust collection assembly. The conductive layer is disposed on one side of the flexible insulating layer and connected to the flexible insulating layer. Thus, the conductive layer can be wound into various forms together with the flexible insulating layer, making the structure of the electrode sheet compact. A plurality of limiting portions are provided on the flexible insulating layer, and the plurality of limiting portions are spaced apart. When the electrode sheet is applied to the dust collection assembly, sufficient spacing can be provided between adjacent conductive layers in the case of stacking a plurality of electrode sheets, ensuring that the spacing between adjacent conductive layers is fixed, preventing contact between adjacent conductive layers, thereby ensuring the stability of the electric field generated by the electrode sheet to achieve the adsorption of media such as dust. Moreover, there is no need to add clamping strips or apply hot melt adhesive to fix the electrode sheet, greatly reducing the process difficulty and processing cost of the dust collection assembly without affecting the appearance of the dust collection assembly. At the same time, the setting of the limiting portions also increases the spacing between adjacent conductive layers, thereby increasing the dust collection area of the dust collection assembly and improving the dust removal and disinfection effects.

[0010] According to the electrode sheet provided by the present invention, the following additional technical features may also be included:

[0011] In some embodiments, optionally, the conductive layer is coated or adhered to the flexible insulating layer.

[0012] In this embodiment, the conductive layer is coated or adhered on the flexible insulating layer, making the conductive layer and the flexible insulating layer closely connected, and the conductive layer and the flexible insulating layer can move together. When the electrode sheet is convolution or bent, the electrode sheet has an adaptive feature.

[0013] In some embodiments, optionally, the flexible insulating layer includes an insulating material.

[0014] In this embodiment, the flexible insulating layer includes an insulating material, achieving insulation between adjacent electrode sheets.

[0015] In some embodiments, optionally, the electrode sheet further includes: an insulating substrate, the conductive layer is disposed on the insulating substrate, and the insulating substrate is disposed on the flexible insulating layer.

[0016] In this embodiment, the electrode sheet further includes an insulating substrate, the conductive layer is disposed on the insulating substrate, and the insulating substrate is then connected to the flexible insulating layer, enabling the conductive layer to be connected to the flexible insulating layer through the insulating substrate, facilitating the manufacture of the electrode sheet.

[0017] In some embodiments, optionally, the side of the insulating substrate provided with the conductive layer is connected to the flexible insulating layer.

[0018] In this embodiment, the side of the insulating substrate provided with the conductive layer is connected to the flexible insulating layer, such that the two sides of the conductive layer are respectively the flexible insulating layer and the insulating substrate. Thus, the conductive layer is completely sealed by the insulating substrate and the flexible insulating layer, and the surface of the electrode sheet is completely insulated. When powered on, the occurrence of electric leakage can be avoided, improving the safety performance.

[0019] In some embodiments, optionally, the conductive layer is coated or adhered to the insulating substrate.

[0020] In this embodiment, the conductive layer is coated or adhered to the insulating substrate, such that the conductive layer and the insulating substrate are connected as an integral structure, improving the connection strength and reliability between the conductive layer and the insulating substrate. Thus, the stability of the distance between adjacent electrode sheets and the stability of the electric field are ensured.

[0021] In some embodiments, optionally, the insulating substrate is adhered to the flexible insulating layer.

[0022] In this embodiment, the insulating substrate is adhered to the flexible insulating layer, such that the insulating substrate and the flexible insulating layer are adhered as an integral structure, improving the reliability of the connection between the insulating substrate and the flexible insulating layer and avoiding the separation of the conductive layer from the flexible insulating layer.

[0023] In some embodiments, optionally, the insulating substrate includes any one of PC, PET, PP, PS, PVC, PET composite PE, and PVC composite PE; and / or the thickness of the insulating substrate is greater than or equal to 0.1 mm and less than or equal to 1.0 mm; and / or the breakdown strength of the insulating substrate is greater than or equal to 100 KV / mm.

[0024] In this embodiment, the insulating substrate includes any one of polycarbonate (PC), polyethylene terephthalate (PET), polypropylene (PP), polystyrene (PS), and polyvinyl chloride (PVC), or can also be a composite film, such as a PET composite PE (polyethylene) film, a PVC composite PE film, etc. The thickness of the insulating substrate is set between 0.1 mm and 1 mm, ensuring the insulation performance of the electrode sheet. Optionally, the breakdown strength of the insulating substrate is greater than or equal to 100 KV / mm, enhancing the strength of the insulating substrate and avoiding the generation of sparks.

[0025] In some embodiments, optionally, insulating substrates are provided on both sides of the conductive layer, and the conductive layer and the insulating substrates on both sides of the conductive layer form an electrode layer.

[0026] In this embodiment, insulating substrates are provided on both sides of the conductive layer, rendering both sides of the conductive layer insulated, reducing the risk of electric breakdown during the operation of the electrode sheet, and enhancing the service life and safety of the electrode sheet.

[0027] In some embodiments, optionally, the conductive layer and the insulating substrates on both sides of the conductive layer are of an integral structure.

[0028] In this embodiment, the conductive layer and the insulating substrates on both sides of the conductive layer are of an integral structure. Thus, when cleaning the dust collection component, liquid can be prevented from entering between the conductive layer and the insulating substrate, making the dust collection component easier to dry, and also enhancing the safety performance of the conductive layer. Moreover, it enables the conductive layer and the insulating substrate to move together. Consequently, when convolving or bending the electrode sheet, the electrode sheet has an adaptive feature.

[0029] In some embodiments, optionally, in the two insulating substrates, the conductive layer is coated or adhered to one side of one insulating substrate and adhered to the other insulating substrate.

[0030] In this embodiment, in the two insulating substrates, the conductive layer is disposed on one side of one of the insulating substrates by coating or adhering, and then adhered to the other insulating substrate, such that the conductive layer is sandwiched between the two insulating substrates. Thus, the insulating substrates on both sides of the conductive layer form a sealed insulating space, preventing the occurrence of discharge and sparking of the conductive layer.

[0031] In some embodiments, optionally, the flexible insulating layer and the electrode layer are stacked, or the flexible insulating layer and the electrode layer are adhered into an integral structure.

[0032] In this embodiment, the flexible insulating layer and the electrode layer are stacked, that is, the flexible insulating layer and the electrode layer are not fixedly connected, thus facilitating adjustment during winding and enhancing self - adaptability. Or the flexible insulating layer and the electrode layer are adhered into an integral structure, so that the flexible insulating layer and the electrode layer can be wound together, and water will not enter between the flexible insulating layer and the electrode layer during cleaning, making it easier to dry.

[0033] In some embodiments, optionally, the width of the conductive layer is less than the width of the insulating substrate.

[0034] In this embodiment, the width of the conductive layer is less than the width of the insulating substrate, such that the conductive layer is completely covered by the insulating substrate, thereby preventing the occurrence of sparking of the conductive layer and enhancing the safety of the electrode sheet.

[0035] In some embodiments, optionally, along the width direction of the insulating substrate, the distance between the edge of the conductive layer and the edge of the insulating substrate is greater than or equal to 1 mm and less than or equal to 10 mm; and / or along the width direction of the insulating substrate, the distance between one side of the conductive layer and the edge of the insulating substrate is a first distance, and the distance between the other side of the conductive layer and the edge of the insulating substrate is a second distance, and the difference between the first distance and the second distance is less than or equal to 0.5 mm.

[0036] In this embodiment, if the distance between the edge of the conductive layer and the edge of the insulating substrate is set too large along the width direction of the insulating substrate, it will increase the material consumption, thereby increasing the manufacturing cost, and will also increase the overall volume of the dust collection component. If the distance is set too small, it will increase the risk of leakage of the conductive layer. Therefore, setting the distance between the edge of the conductive layer and the edge of the insulating substrate between 1 mm and 10 mm can not only reduce the manufacturing cost, but also ensure the wrapping effect of the insulating substrate on the conductive layer, improve the insulation performance of the electrode layer, and also ensure the electrical clearance and the range of electric field coverage. Optionally, along the width direction of the insulating substrate, the difference between the first distance and the second distance is less than or equal to 0.5 mm, so that the conductive layer is concentratedly distributed in the middle position of the insulating substrate, thereby improving the utilization rate of the insulating substrate and being beneficial to reducing the overall volume of the dust collection component.

[0037] In some embodiments, optionally, the electrode sheet further includes: an electrical connection portion, which is electrically connected to the conductive layer and is used to connect to a power supply device.

[0038] In this embodiment, the electrode sheet further includes an electrical connection portion, which is connected to the conductive layer and can be connected to a power supply device, thereby providing a high-voltage power supply for the electrode sheet so that the electrode sheet can generate a corresponding electric field to realize the adsorption of dust.

[0039] In some embodiments, optionally, along the length direction of the flexible insulating layer, the electrical connection portion is located at the end of the conductive layer.

[0040] In this embodiment, along the length direction of the flexible insulating layer, the electrical connection portion is arranged at the end of the conductive layer to facilitate the connection between the electrical connection portion and the power supply device.

[0041] In some embodiments, optionally, the electrical connection portion includes a metal part or a wire.

[0042] In this embodiment, the electrical connection portion includes a metal part or a wire and other structures that can conduct electricity.

[0043] In some embodiments, optionally, the limiting portion includes a protrusion, and the protrusion is provided on the same side or different sides of the flexible insulating layer.

[0044] In this embodiment, the limiting portion includes a protrusion, which is provided on one side or both sides of the flexible insulating layer. The provision of the protrusion can increase the distance between adjacent electrode sheets when multiple electrode sheets are stacked, ensuring the stability of the electric field generated by the electrode sheets on the one hand, and increasing the dust collection space of the dust collection assembly on the other hand, thereby improving the dust collection effect. Specifically, the protrusion can be provided on one side or both sides of the flexible insulating layer.

[0045] In some embodiments, optionally, the protrusion is provided on one side of the flexible insulating layer, and the conductive layer is provided on the other side of the flexible insulating layer.

[0046] In this embodiment, the protrusion and the conductive layer are respectively located on both sides of the flexible insulating layer, which facilitates the connection between the conductive layer and the flexible insulating layer and reduces the processing difficulty.

[0047] In some embodiments, optionally, multiple protrusions are arranged in at least one row.

[0048] In this embodiment, arranging multiple protrusions in at least one row can enhance the supporting effect of the protrusions on adjacent electrode sheets to ensure a fixed distance between adjacent electrode layers.

[0049] In some embodiments, optionally, when multiple protrusions are arranged in multiple rows, the multiple protrusions in adjacent two rows are arranged opposite to each other or staggered along the width direction of the flexible insulating layer.

[0050] In this embodiment, when multiple protrusions are arranged in multiple rows, the multiple protrusions in adjacent two rows are arranged opposite to each other along the width direction of the flexible insulating layer to increase the air passing area of the channel surrounded by adjacent protrusions, reduce the wind resistance, increase the air volume, and thus improve the purification speed; when the multiple protrusions in adjacent two rows are staggered along the width direction of the flexible insulating layer, the air outlet wind resistance is increased, and thus the contact time between the medium in the air and the electrode layer is increased to improve the purification efficiency.

[0051] In some embodiments, optionally, along the length direction of the flexible insulating layer, the distance between the centers of adjacent protrusions is d1, the width of any one protrusion is d2; the height of the protrusion is h; along the width direction of the flexible insulating layer, the length of the protrusion is L, and the width of the flexible insulating layer is D, where d1 satisfies the following relationship: 1 mm ≤ d1 ≤ 100 mm; and / or d2 satisfies the following relationship: 0.1 mm ≤ d2 ≤ 10 mm; and / or h satisfies the following relationship: 0.5 mm ≤ h ≤ 20 mm; and / or d2 and h satisfy the following relationship: 0.1 ≤ d2 / h ≤ 5; and / or L and D satisfy the following relationship: 0.01 ≤ L / D < 1; and / or the distance between adjacent protrusions is greater than or equal to 0.5 mm and less than or equal to 100 mm; and / or the difference between the heights h of any two protrusions is greater than or equal to 0 mm and less than or equal to 1 mm.

[0052] In this embodiment, if the size of the protrusion is too large, it will increase the manufacturing cost and reduce the volume of the dust collection space. If the size of the protrusion is too small, it will increase the manufacturing difficulty. Therefore, the distance between the centers of adjacent protrusions is set between 1 mm and 100 mm, which can ensure the air volume and reduce the air resistance; the height of the protrusion is set between 0.5 mm and 20 mm, which can ensure the distance between adjacent electrode sheets, and thus ensure the air volume and reduce the air resistance; the ratio of the width of the protrusion to the height of the protrusion is set between 0.1 and 5, which can ensure the width and height of the air duct between adjacent electrode sheets, increase the volume of the air duct, and thus increase the air volume; the ratio of the length of the protrusion to the width of the flexible insulating layer is set between 0.01 and 1, which can prevent the protrusion from protruding beyond the flexible insulating layer along the width direction of the insulating paper layer, thereby reducing the manufacturing cost and reducing the occupation of the dust collection space by the flexible insulating layer. Optionally, if the width of the protrusion is too large, it will increase the manufacturing cost and reduce the volume of the dust collection space. If the width of the protrusion is too small, it will increase the manufacturing difficulty. Therefore, the width between any two points on the contour line of any cross-section of the protrusion is set between 0.1 mm and 10 mm, which can not only ensure the volume of the dust collection space but also facilitate manufacturing. Optionally, the distance between adjacent protrusions is set between 0.5 mm and 100 mm; optionally, the difference between the heights of any two protrusions is less than or equal to 0 mm and less than or equal to 1 mm, so that the heights of multiple protrusions are close to each other, and thus the distance between the electrode sheets is maintained within a stable range.

[0053] In some embodiments, optionally, the height h of the protrusion is greater than or equal to 0.5 mm and less than or equal to 10 mm.

[0054] In this embodiment, the height of the protrusion is set between 0.5 mm and 10 mm, ensuring the spacing effect between adjacent electrode sheets.

[0055] In some embodiments, optionally, the flexible insulating layer is further provided with a groove, and the groove is recessed from one side of the flexible insulating layer to the other side to form a protrusion on the other side of the flexible insulating layer; or the protrusion is a solid structure.

[0056] In this embodiment, the groove is recessed from one side of the flexible insulating layer to the other side, thereby forming a groove and a protrusion arranged oppositely on the flexible insulating layer, making the protrusion and the flexible insulating layer an integral structure, and reducing the material consumption and weight of the flexible insulating layer. Alternatively, the protrusion is a solid structure to ensure the support strength between adjacent electrode sheets, and thus ensure the distance between adjacent electrode sheets, making the distance between adjacent electrode sheets fixed to ensure the air volume.

[0057] In some embodiments, optionally, the edge of the conductive layer is located within the area enclosed by the edge of the flexible insulating layer.

[0058] In this embodiment, the edge of the conductive layer is located within the region enclosed by the edges of the flexible insulating layer, such that the projection of the conductive layer on the flexible insulating layer is within the flexible insulating layer, improving the creepage distance and electrical clearance and avoiding the occurrence of discharge and sparking phenomena.

[0059] In some embodiments, optionally, along the width direction of the flexible insulating layer, the distance from the edge of the conductive layer to the edge of the flexible insulating layer is greater than or equal to 1 mm and less than or equal to 50 mm.

[0060] In this embodiment, along the width direction of the flexible insulating layer, the distance from the edge of the conductive layer to the edge of the flexible insulating layer is greater than or equal to 1 mm and less than or equal to 50 mm, which not only ensures the electrical clearance but also the range of electric field coverage.

[0061] In some embodiments, optionally, the width of the flexible insulating layer is less than or equal to twice the width of the electrode layer.

[0062] In this embodiment, the width of the flexible insulating layer is less than or equal to twice the width of the electrode layer, enabling the flexible insulating layer to play a supporting role without protruding beyond the electrode layer, thereby reducing the cost of the flexible insulating layer.

[0063] In some embodiments, optionally, the flexible insulating layer includes an insulating film or an insulating plastic sheet.

[0064] In this embodiment, the flexible insulating layer includes an insulating film or an insulating plastic sheet, which can not only achieve winding but also ensure the insulation effect between adjacent electrode sheets.

[0065] In some embodiments, optionally, the thickness of the flexible insulating layer is greater than or equal to 0.1 mm and less than or equal to 1 mm.

[0066] In this embodiment, the thickness of the flexible insulating layer is between 0.1 mm and 1 mm, enabling insulation between adjacent electrode sheets.

[0067] In some embodiments, optionally, the conductive layer includes any one of a metal foil, a conductive thin film, or a flexible conductive sheet coated with a conductive coating, or the conductive layer is prepared by conductive silver paste.

[0068] In this embodiment, the conductive layer includes any one of a metal foil, a conductive thin film, or a flexible conductive sheet coated with a conductive coating, or the conductive layer is prepared by conductive silver paste.

[0069] In some embodiments, optionally, the surface resistance of the conductive layer is less than or equal to 1×10 8 Ω; and / or the thickness of the conductive layer is greater than or equal to 0.01 mm and less than or equal to 1 mm.

[0070] In this embodiment, the surface resistance of the conductive layer is less than or equal to 1×108 Ω to ensure that when the electrode sheet is relatively long, the applied voltage will not show obvious attenuation. The thickness of the conductive layer is set between 0.01 mm and 1 mm, which can ensure the electric field strength.

[0071] In some embodiments, optionally, the surface resistance value of the conductive layer is less than or equal to 1×10 7 Ω.

[0072] In this embodiment, the surface resistance of the conductive layer is less than or equal to 1×10 7 Ω to ensure that when the length of the electrode sheet is relatively long, the applied voltage will not show obvious attenuation.

[0073] According to the second aspect of the present invention, a dust collection assembly is further provided, including: a plurality of electrode sheets as described in any of the above embodiments.

[0074] The dust collection assembly provided by the second aspect of the present invention includes the electrode sheets as described in any of the above embodiments, and thus has all the beneficial effects of the electrode sheets.

[0075] In some embodiments, optionally, a plurality of electrode sheets are stacked in sequence and wound.

[0076] In this embodiment, a plurality of electrode sheets are stacked in sequence and can be wound into various shapes, thereby reducing the space occupied by the electrode sheets and improving the applicability of the dust collection assembly in different devices.

[0077] In some embodiments, optionally, a plurality of electrode sheets are stacked in sequence and wound around the center of the dust collection assembly to form a spiral dust collection structure; or a plurality of electrode sheets are stacked in sequence and stacked reciprocally around the circumference of the winding of the dust collection assembly.

[0078] In this embodiment, after a plurality of electrode sheets are stacked in sequence, they are wound around the center of the dust collection assembly to form a spiral dust collection structure, reducing the space occupied and improving the adsorption effect on the charged medium. Or after a plurality of electrode sheets are stacked in sequence, they are stacked reciprocally around the circumference of the winding of the dust collection assembly. For example, after a plurality of electrode sheets are stacked, they are wound clockwise around the circumference of the winding of the dust collection assembly for one circle, then bent counterclockwise, and stacked on the surface of the previous circle along the counterclockwise direction, and so on to wind into a dust collection assembly. Of course, it can also be that after a plurality of electrode sheets are stacked, they are wound counterclockwise around the circumference of the winding of the dust collection assembly for one circle, then bent clockwise, and stacked on the surface of the previous circle along the clockwise direction, and so on to wind into a dust collection assembly.

[0079] In some embodiments, optionally, when a plurality of electrode sheets are wound into a spiral dust collection structure, the electric field is distributed in a divergent manner along the radial direction with the center of the winding of the electrode sheet as the center of the circle, and the directions of the electric fields generated in adjacent gaps are different.

[0080] In this embodiment, after a plurality of electrode sheets are alternately stacked one by one and wound into a spiral dust collection structure, a gap is formed between adjacent stacked conductive layers. The spiral dust collection structure makes the electric field in the gap diverge radially with the winding center of the electrode sheet as the center of the circle. Furthermore, the distance between the gap and the winding center gradually increases as the number of winding turns increases. Therefore, the dust collection volume gradually increases, improving the dust collection capacity. Specifically, the spiral winding method makes the directions of the electric fields generated in adjacent gaps different.

[0081] In some embodiments, optionally, one of the adjacent electrode sheets stacked in sequence is a positive electrode sheet, and the other is a negative electrode sheet. The positive electrode sheet and the negative electrode sheet can generate an electric field when powered on to adsorb a charged medium through the electric field.

[0082] In this embodiment, the plurality of electrode sheets include positive electrode sheets and negative electrode sheets. When powered on, an electric field is formed at the gap between the positive electrode sheet and the negative electrode sheet, thereby generating an adsorption force on the charged medium.

[0083] Optionally, the electric field also has the function of sterilization and disinfection. Therefore, the dust collection component can remove dust, sterilize, and achieve the effect.

[0084] According to the third aspect of the present invention, an air purification device is further provided, including: the electrode sheet proposed in any item of the first aspect, or the dust collection component proposed in any item of the second aspect.

[0085] The air purification device provided by the third aspect of the present invention includes the electrode sheet or the dust collection component proposed in any of the above embodiments, and thus has all the beneficial effects of the electrode sheet or the dust collection component.

[0086] The additional aspects and advantages of the present invention will become apparent in the following description section, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0088] Figure 1 FIG. 1 shows one of the schematic structural diagrams of the electrode sheet according to an embodiment of the present invention;

[0089] Figure 2 FIG. 2 shows one of the schematic structural diagrams of the flexible insulating layer according to an embodiment of the present invention;

[0090] Figure 3 FIG. 3 shows another schematic structural diagram of the flexible insulating layer according to an embodiment of the present invention;

[0091] Figure 4Shows the third schematic diagram of the structure of the flexible insulating layer according to an embodiment of the present invention;

[0092] Figure 5 Shows the schematic diagram of the structure of the conductive layer according to an embodiment of the present invention;

[0093] Figure 6 Shows the schematic diagram of the structure of a plurality of electrode sheets stacked according to an embodiment of the present invention;

[0094] Figure 7 Shows the first partial schematic diagram of the structure of the dust collection assembly according to an embodiment of the present invention;

[0095] Figure 8 Shows the second partial schematic diagram of the structure of the dust collection assembly according to an embodiment of the present invention;

[0096] Figure 9 Shows the first schematic diagram of the structure of the dust collection assembly according to an embodiment of the present invention;

[0097] Figure 10 Shows the second schematic diagram of the structure of the dust collection assembly according to an embodiment of the present invention;

[0098] Figure 11 Shows the schematic diagram of the structure of the electrode layer according to an embodiment of the present invention;

[0099] Figure 12 Shows the second schematic diagram of the structure of the electrode sheet according to an embodiment of the present invention;

[0100] Figure 13 Shows the fourth schematic diagram of the structure of the flexible insulating layer according to an embodiment of the present invention;

[0101] Figure 14 Shows the fifth schematic diagram of the structure of the flexible insulating layer according to an embodiment of the present invention;

[0102] Figure 15 Shows the sixth schematic diagram of the structure of the flexible insulating layer according to an embodiment of the present invention;

[0103] Figure 16 Shows the seventh schematic diagram of the structure of the flexible insulating layer according to an embodiment of the present invention;

[0104] Figure 17 Shows the eighth schematic diagram of the structure of the flexible insulating layer according to an embodiment of the present invention;

[0105] Figure 18 Shows the third schematic diagram of the structure of the dust collection assembly according to an embodiment of the present invention;

[0106] Figure 19 Shows Figure 18 The enlarged schematic diagram of the A position of the dust collection assembly of the shown embodiment;

[0107] Figure 20 Shows the fourth schematic structural diagram of the dust collection assembly according to an embodiment of the present invention;

[0108] Figure 21 Shows the fifth schematic structural diagram of the dust collection assembly according to an embodiment of the present invention;

[0109] Figure 22 Shows the schematic block diagram of the electrode sheet according to an embodiment of the present invention;

[0110] Figure 23 Shows the schematic block diagram of the air purification device according to an embodiment of the present invention;

[0111] Figure 24 Shows the first schematic structural diagram of the air purification device according to an embodiment of the present invention;

[0112] Figure 25 Shows the second schematic structural diagram of the air purification device according to an embodiment of the present invention;

[0113] Figure 26 Shows the third schematic structural diagram of the air purification device according to an embodiment of the present invention.

[0114] Among them, Figures 1 to 26 The corresponding relationship between the reference numerals in the drawings and the component names is as follows:

[0115] 1 electrode sheet, 10 flexible insulating layer, 102 limiting part, 104 protrusion, 11 conductive layer, 12 insulating substrate, 13 electrical connection part, 14 positive electrode sheet, 15 negative electrode sheet, 16 electrode layer, 2 dust collection assembly, 20 power supply device, 22 dust collection structure, 24 support structure, 26 air duct, 3 air purification device, 30 fan blade, 32 ion generator, 34 fan cover, 36 grille. Detailed implementation manners

[0116] In order to be able to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0117] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0118] The following refers to Figures 1 to 26 Describe the electrode sheet 1, the dust collection assembly 2 and the air purification device 3 according to some embodiments of the present invention.

[0119] As Figure 1 and Figure 2 shown, according to an embodiment of the present invention, the present invention provides an electrode sheet 1 for a dust collection assembly 2. The electrode sheet 1 is a flexible electrode sheet, and the electrode sheet 1 includes: a flexible insulating layer 10 and a conductive layer 11.

[0120] Specifically, a plurality of spaced limiting portions 102 are provided on the flexible insulating layer 10; the conductive layer 11 is disposed on one side of the flexible insulating layer 10 and is connected to the flexible insulating layer 10.

[0121] The electrode sheet 1 provided by the present invention includes a flexible insulating layer 10 and a conductive layer 11. The electrode sheet 1 is a flexible electrode sheet, so that the whole electrode sheet 1 can be deformed into various forms, and then different electric field shapes can be formed to meet the requirements of different electric field forms of the dust collection assembly 2. The conductive layer 11 is disposed on one side of the flexible insulating layer 10 and is connected to the flexible insulating layer 10. Thus, the conductive layer 11 can be wound into various forms together with the flexible insulating layer 10, making the structure of the electrode sheet 1 compact. A plurality of limiting portions 102 are provided on the flexible insulating layer 10, and the plurality of limiting portions 102 are spaced apart. Thus, when the electrode sheet 1 is applied to the dust collection assembly 2, when a plurality of electrode sheets 1 are stacked, sufficient spacing can be provided between adjacent conductive layers 11, ensuring that the spacing between adjacent conductive layers 11 is fixed, avoiding contact between adjacent conductive layers 11, and thus ensuring the stability of the electric field generated by the electrode sheet 1, realizing the adsorption of media such as dust, and there is no need to add clamping strips or apply hot melt adhesive to fix the electrode sheet 1, greatly reducing the process difficulty and processing cost of the dust collection assembly 2, and not affecting the appearance of the dust collection assembly 2. At the same time, the setting of the limiting portions 102 also increases the spacing between adjacent conductive layers 11, thereby increasing the dust collection area of the dust collection assembly 2 and improving the dust removal and disinfection effects.

[0122] It can be understood that the flexible insulating layer 10 has an insulating function, avoiding the conduction between adjacent electrode sheets 1 when a plurality of electrode sheets 1 are stacked, and thus ensuring the reliability and safety of the electric field formed by the electrode sheet 1. The electrode sheet 1 is a flexible electrode sheet, that is, the shape of the electrode sheet 1 can be changed, and the electrode sheet 1 can be bent according to specific actual use requirements to adjust the shape of the electrode sheet 1. For example, the electrode sheet 1 can be bent into an annular structure, for example, the electrode sheet 1 can be bent into an "S" - shaped structure, for example, the electrode sheet 1 can be bent into a spiral structure. That is to say, by bending the electrode sheet 1, the requirements of the electric field area generated during the operation of the dust collection assembly 2 can be met. In this way, compared with the related art in which multiple groups of alternately parallel - arranged electrode components are arranged, it is beneficial to reduce the number of electrode sheets 1, simplify the assembly process of the dust collection assembly 2, reduce the production cost of the dust collection assembly 1, generate a larger electric field area with fewer electrode sheets 1, and has the advantages of diverse shapes and strong adaptability.

[0123] In a specific application, the dust collection assembly 2 includes a plurality of electrode sheets 1, and the plurality of electrode sheets 1 are stacked. Specifically, the positive and negative electrodes among the plurality of electrode sheets 1 are alternately stacked in sequence.

[0124] It should be noted that an electric field can be generated under the interaction of the positive and negative electrodes. Under the action of the electric field, dust or other media carrying charges can be adsorbed, achieving the effects of dust removal and disinfection.

[0125] According to some embodiments of the present application, optionally, the conductive layer 11 is attached to the flexible insulating layer 10. Specifically, the conductive layer 11 and the flexible insulating layer 10 are of an integral structure, enabling the conductive layer 11 to move with the movement of the flexible insulating layer 10. Thus, when the plurality of electrode sheets 1 are wound, the structure is more stable and compact.

[0126] In some embodiments, optionally, the flexible insulating layer 10 includes an insulating material.

[0127] In this embodiment, the flexible insulating layer 10 includes an insulating material, realizing insulation between adjacent electrode sheets 1.

[0128] According to some embodiments of the present application, optionally, the conductive layer 11 is coated or adhered to the flexible insulating layer 10.

[0129] In this embodiment, the conductive layer 11 is coated or adhered to the flexible insulating layer 10, making the conductive layer 11 and the flexible insulating layer 10 closely connected. The conductive layer 11 and the flexible insulating layer 10 can move together. Thus, when the electrode sheet 1 is convolved or bent, the electrode sheet 1 has an adaptive feature.

[0130] As Figure 22 shown, according to some embodiments of the present application, optionally, the electrode sheet 1 further includes: an insulating substrate 12, the conductive layer 11 is provided on the insulating substrate 12, and the insulating substrate 12 is provided on the flexible insulating layer 10.

[0131] In this embodiment, the electrode sheet 1 further includes an insulating substrate 12, the conductive layer 11 is disposed on the insulating substrate 12, and the insulating substrate 12 is then connected to the flexible insulating layer 10, enabling the conductive layer 11 to be connected to the flexible insulating layer 10 through the insulating substrate 12, which is convenient for the manufacture of the electrode sheet 1.

[0132] According to some embodiments of the present application, optionally, the side of the insulating substrate 12 where the conductive layer 11 is provided is connected to the flexible insulating layer 10.

[0133] In this embodiment, the side of the insulating substrate 12 where the conductive layer 11 is disposed is connected to the flexible insulating layer 10, such that the two sides of the conductive layer 11 are respectively the flexible insulating layer 10 and the insulating substrate 12. Further, the conductive layer 11 is completely sealed by the insulating substrate 12 and the flexible insulating layer 10, and the surface of the electrode sheet 1 is completely insulated. When powered on and operating, the occurrence of electric leakage can be avoided, improving the safety performance.

[0134] According to some embodiments of the present application, optionally, the conductive layer 11 is coated or adhered to the insulating substrate 12.

[0135] In this embodiment, the conductive layer 11 is coated or adhered to the insulating substrate 12, such that the conductive layer 11 and the insulating substrate 12 are connected as an integral structure, improving the connection strength and reliability between the conductive layer 11 and the insulating substrate 12. Further, the stability of the distance between adjacent electrode sheets 1 and the stability of the electric field are ensured.

[0136] According to some embodiments of the present application, optionally, the insulating substrate 12 is adhered to the flexible insulating layer 10.

[0137] In this embodiment, the insulating substrate 12 is adhered to the flexible insulating layer 10, and thus the insulating substrate 12 and the flexible insulating layer 10 are adhered as an integral structure, improving the reliability of the connection between the insulating substrate 12 and the flexible insulating layer 10, and avoiding the separation of the conductive layer 11 from the flexible insulating layer 10.

[0138] According to some embodiments of the present application, optionally, the insulating substrate 12 includes any one of PC, PET, PP, PS, PVC, PET composite PE, and PVC composite PE; and / or the thickness of the insulating substrate 12 is greater than or equal to 0.1 mm and less than or equal to 1.0 mm; and / or the breakdown strength of the insulating substrate 12 is greater than or equal to 100 KV / mm.

[0139] In this embodiment, the insulating substrate 12 includes any one of polycarbonate (PC), polyethylene terephthalate (PET), polypropylene (PP), polystyrene (PS), and polyvinyl chloride (PVC), or may be a composite film, such as a PET composite PE film, a PVC composite PE film, etc. The thickness of the insulating substrate 12 is set between 0.1 mm and 1 mm, ensuring the insulation performance of the electrode sheet 1. Optionally, the breakdown strength of the insulating substrate 12 is greater than or equal to 100 KV / mm, enhancing the strength of the insulating substrate 12 and avoiding the generation of sparks.

[0140] In a specific application, the thickness of the insulating substrate 12 is any value among 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, and 1.0 mm.

[0141] As Figure 11 and Figure 12 shown, in some embodiments, optionally, insulating substrates 12 are provided on both sides of the conductive layer 11, and the conductive layer 11 and the insulating substrates 12 on both sides of the conductive layer 11 form an electrode layer 16.

[0142] In this embodiment, insulating substrates 12 are provided on both sides of the conductive layer 11, so that both sides of the conductive layer 11 are insulated, reducing the risk of electric breakdown during the operation of the electrode sheet 1 and improving the service life and safety of the electrode sheet 1.

[0143] In some embodiments, optionally, the conductive layer 11 and the insulating substrates 12 on both sides of the conductive layer 11 are of an integral structure.

[0144] In this embodiment, the conductive layer 11 and the insulating substrates 12 on both sides of the conductive layer 11 are of an integral structure. Thus, when cleaning the dust collection assembly, liquid can be prevented from entering between the conductive layer 11 and the insulating substrates 12, making the dust collection assembly easier to dry. Additionally, the safety performance of the conductive layer 11 can be improved. Moreover, the conductive layer 11 and the insulating substrates 12 can move together. Thus, when convolving or bending the electrode sheet 1, the electrode sheet 1 has an adaptive feature.

[0145] In some embodiments, optionally, among the two insulating substrates 12, the conductive layer 11 is coated or adhered to one side of one insulating substrate 12 and adhered to the other insulating substrate 12.

[0146] In this embodiment, among the two insulating substrates 12, the conductive layer 11 is disposed on one side of one of the insulating substrates 12 by coating or adhering, and then adhered to the other insulating substrate 12, so that the conductive layer 11 is clamped between the two insulating substrates 12. Thus, the insulating substrates 12 on both sides of the conductive layer 11 form a sealed insulating space, preventing the occurrence of electric discharge and sparking of the conductive layer 11.

[0147] In some embodiments, optionally, the flexible insulating layer 10 and the electrode layer 16 are stacked, or the flexible insulating layer 10 and the electrode layer 16 are adhered into an integral structure.

[0148] In this embodiment, the flexible insulating layer 10 and the electrode layer 16 are stacked, that is, the flexible insulating layer 10 and the electrode layer 16 are not fixedly connected, which is convenient for adjustment during winding and improves self - adaptability. Alternatively, the flexible insulating layer 10 and the electrode layer 16 are bonded into an integral structure, so that the flexible insulating layer 10 and the electrode layer 16 can be wound together, and water will not enter between the flexible insulating layer 10 and the electrode layer 16 during cleaning, making it easier to dry.

[0149] In some embodiments, optionally, the width of the conductive layer 11 is less than the width of the insulating substrate 12.

[0150] In this embodiment, the width of the conductive layer 11 is less than the width of the insulating substrate 12, so that the conductive layer 11 is completely covered by the insulating substrate 12, thereby avoiding the occurrence of arcing of the conductive layer 11 and improving the safety of the electrode sheet 1.

[0151] In some embodiments, optionally, along the width direction of the insulating substrate 12, the distance between the edge of the conductive layer 11 and the edge of the insulating substrate 12 is greater than or equal to 1 mm and less than or equal to 10 mm; and / or along the width direction of the insulating substrate 12, the distance between one side of the conductive layer 11 and the edge of the insulating substrate 12 is a first distance, and the distance between the other side of the conductive layer 11 and the edge of the insulating substrate 12 is a second distance, and the difference between the first distance and the second distance is less than or equal to 0.5 mm.

[0152] In this embodiment, if the distance between the edge of the conductive layer 11 and the edge of the insulating substrate 12 is set too large along the width direction of the insulating substrate 12, it will increase the material consumption, thereby increasing the manufacturing cost, and will also increase the overall volume of the dust collection assembly. If the distance is set too small, it will increase the risk of leakage of the conductive layer 11. Therefore, setting the distance between the edge of the conductive layer 11 and the edge of the insulating substrate 12 between 1 mm and 10 mm can not only reduce the manufacturing cost, but also ensure the wrapping effect of the insulating substrate 12 on the conductive layer 11, improve the insulation performance of the electrode layer 16, and also ensure the electrical clearance and the range of electric field coverage. Optionally, along the width direction of the insulating substrate 12, the difference between the first distance and the second distance is less than or equal to 0.5 mm, so that the conductive layer 11 is concentrated in the middle position of the insulating substrate 12, thereby improving the utilization rate of the insulating substrate 12 and being beneficial to reducing the overall volume of the dust collection assembly.

[0153] As Figure 1 and Figure 5 shown, according to some embodiments of the present application, optionally, the electrode sheet 1 further includes: an electrical connection portion 13, the electrical connection portion 13 is electrically connected to the conductive layer 11, and the electrical connection portion 13 is used to connect the power supply device 20.

[0154] In this embodiment, the electrode sheet 1 further includes an electrical connection portion 13. The electrical connection portion 13 is connected to the conductive layer 11 and can be connected to the power supply device 20, thereby providing a high-voltage power supply for the electrode sheet 1 so that the electrode sheet 1 can generate a corresponding electric field to achieve dust adsorption.

[0155] As Figure 1 shown, according to some embodiments of the present application, optionally, along the length direction of the flexible insulating layer 10, the electrical connection portion 13 is located at the end of the conductive layer 11.

[0156] In this embodiment, along the length direction of the flexible insulating layer 10, the electrical connection portion 13 is arranged at the end of the conductive layer 11 to facilitate the connection between the electrical connection portion 13 and the power supply device 20.

[0157] It can be understood that the shape of the flexible insulating layer 10 is strip-shaped.

[0158] According to some embodiments of the present application, optionally, the electrical connection portion 13 includes a metal part or a wire.

[0159] In this embodiment, the electrical connection portion 13 includes a metal part or a wire and other structures that can achieve electrical conduction.

[0160] As Figure 2 、 Figure 13 、 Figure 14 、 Figure 15 、 Figure 16 and Figure 17 shown, according to some embodiments of the present application, optionally, the limiting portion 102 includes a protrusion 104, and the protrusion 104 is arranged on the same side or different sides of the flexible insulating layer 10.

[0161] In this embodiment, the limiting portion 102 includes a protrusion 104. The protrusion 104 is arranged on one side or both sides of the flexible insulating layer 10. The arrangement of the protrusion 104 can increase the distance between adjacent electrode sheets 1 when multiple electrode sheets 1 are stacked. On the one hand, it ensures the stability of the electric field generated by the electrode sheet 1, and on the other hand, it also increases the dust collection space of the dust collection assembly 2 and improves the dust collection effect. Specifically, the protrusion 104 can be arranged on one side or both sides of the flexible insulating layer 10.

[0162] According to some embodiments of the present application, optionally, the protrusion 104 is arranged on one side of the flexible insulating layer 10, and the conductive layer 11 is arranged on the other side of the flexible insulating layer 10.

[0163] In this embodiment, the protrusion 104 and the conductive layer 11 are respectively located on both sides of the flexible insulating layer 10, thereby facilitating the connection between the conductive layer 11 and the flexible insulating layer 10 and reducing the processing difficulty.

[0164] As Figures 13 to 17As shown, in some embodiments, optionally, the plurality of protrusions 104 are arranged in at least one row.

[0165] In this embodiment, the plurality of protrusions 104 are arranged in at least one row, which can improve the supporting effect of the protrusions 104 on the adjacent electrode sheets 1 to ensure that the distance between the adjacent electrode layers 16 is fixed.

[0166] Such as Figure 13 and Figure 14 As shown, in some embodiments, optionally, when the plurality of protrusions 104 are arranged in multiple rows, the plurality of protrusions 104 in two adjacent rows are arranged opposite to each other or staggered along the width direction of the flexible insulating layer 10.

[0167] In this embodiment, when the plurality of protrusions 104 are arranged in multiple rows, the plurality of protrusions 104 in two adjacent rows are arranged opposite to each other along the width direction of the flexible insulating layer 10 to increase the air passing area of the channels surrounded by the adjacent protrusions 104, reduce the wind resistance, increase the air volume, and thus improve the purification speed; when the plurality of protrusions 104 in two adjacent rows are staggered along the width direction of the flexible insulating layer 10, the air outlet wind resistance is increased, and thus the contact time of the medium in the air with the electrode layer 16 is increased to improve the purification efficiency.

[0168] Such as Figure 3 、 Figure 15 and Figure 16 As shown, in some embodiments, optionally, along the length direction of the flexible insulating layer 10, the distance between the centers of the adjacent protrusions 104 is d1, the width of any one protrusion 104 is d2; the height of the protrusion 104 is h; along the width direction of the flexible insulating layer 10, the length of the protrusion 104 is L, and the width of the flexible insulating layer 10 is D, wherein, d1 satisfies the following relationship: 1 mm ≤ d1 ≤ 100 mm; and / or d2 satisfies the following relationship: 0.1 mm ≤ d2 ≤ 10 mm; and / or h satisfies the following relationship: 0.5 mm ≤ h ≤ 20 mm; and / or d2 and h satisfy the following relationship: 0.1 ≤ d2 / h ≤ 5; and / or L and D satisfy the following relationship: 0.01 ≤ L / D < 1; and / or the distance B between the adjacent protrusions 104 is greater than or equal to 0.5 mm and less than or equal to 100 mm; and / or the difference between the heights h of any two protrusions 104 is greater than or equal to 0 mm and less than or equal to 1 mm.

[0169] In this embodiment, if the size of the protrusion 104 is too large, it will increase the manufacturing cost and reduce the volume of the dust collection space. If the size of the protrusion 104 is too small, it will increase the manufacturing difficulty. Therefore, setting the distance between the centers of adjacent protrusions 104 between 1 mm and 100 mm can ensure the air volume and reduce the air resistance. Setting the height of the protrusion 104 between 0.5 mm and 20 mm can ensure the distance between adjacent electrode sheets 1, thereby ensuring the air volume and reducing the air resistance. Setting the ratio of the width of the protrusion 104 to the height of the protrusion 104 between 0.1 and 5 can ensure the width and height of the air duct 26 between adjacent electrode sheets 1, increase the volume of the air duct 26, and thus increase the air volume. Setting the ratio of the length of the protrusion 104 to the width of the flexible insulating layer 10 between 0.01 and 1 can prevent the protrusion 104 from protruding beyond the flexible insulating layer 10 along the width direction of the insulating paper layer, thereby reducing the manufacturing cost and reducing the occupation of the dust collection space by the flexible insulating layer 10. Optionally, if the width of the protrusion 104 is too large, it will increase the manufacturing cost and reduce the volume of the dust collection space. If the width of the protrusion 104 is too small, it will increase the manufacturing difficulty. Therefore, setting the width between any two points on the contour line of any cross-section of the protrusion 104 between 0.1 mm and 10 mm can not only ensure the volume of the dust collection space but also facilitate manufacturing. Optionally, the distance B between adjacent protrusions 104 is set between 0.5 mm and 100 mm. Optionally, the difference between the heights h of any two protrusions 104 is less than or equal to 0 mm and less than or equal to 1 mm, so that the heights of the multiple protrusions 104 are close to each other, and thus the distance between the electrode sheets 1 is maintained within a stable range.

[0170] As Figure 3 and Figure 4 shown, according to some embodiments of the present application, optionally, the height h of the protrusion 104 is greater than or equal to 0.5 mm and less than or equal to 10 mm.

[0171] In this embodiment, setting the height h of the protrusion 104 between 0.5 mm and 10 mm ensures the spacing effect between adjacent electrode sheets 1. It can be understood that the height of the protrusion 104, that is, the height by which the protrusion 104 protrudes from the flexible insulating layer 10.

[0172] In a specific application, in any cross-section perpendicular to the height direction of the protrusion 104, the width between any two points on the contour line of the protrusion 104 (that is, the width of the protrusion 104) is any value among 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, or is between any two values.

[0173] Optionally, the spacing between adjacent protrusions 104 is greater than or equal to 2 mm and less than or equal to 100 mm. Specifically, the spacing between adjacent protrusions 104 is any value among 10 mm, 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, or is located between any two values.

[0174] Optionally, the height of the protrusion 104 is any value among 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or is located between any two values.

[0175] Optionally, multiple protrusions 104 are set to be of equal height.

[0176] In some embodiments, optionally, the flexible insulating layer 10 is further provided with a groove, and the groove is recessed from one side of the flexible insulating layer 10 to the other side to form a protrusion 104 on the other side of the flexible insulating layer 10; or the protrusion 104 is a solid structure.

[0177] In this embodiment, as Figure 16 shown, the groove is recessed from one side of the flexible insulating layer 10 to the other side, thereby forming a groove and a protrusion 104 disposed opposite to each other on the flexible insulating layer 10, such that the protrusion 104 and the flexible insulating layer 10 are of an integral structure, and the material usage and weight of the flexible insulating layer 10 are reduced. Alternatively, the protrusion 104 is a solid structure to ensure the support strength between adjacent electrode sheets 1, thereby ensuring the spacing between adjacent electrode sheets 1, making the spacing between adjacent electrode sheets 1 fixed to ensure the air volume.

[0178] According to some embodiments of the present application, optionally, the edge of the conductive layer 11 is located within the region enclosed by the edge of the flexible insulating layer 10.

[0179] In this embodiment, the edge of the conductive layer 11 is located within the region enclosed by the edge of the flexible insulating layer 10, such that the projection of the conductive layer 11 on the flexible insulating layer 10 is located within the flexible insulating layer 10, improving the creepage distance and electrical clearance and avoiding the occurrence of discharge and sparking phenomena.

[0180] According to some embodiments of the present application, optionally, along the width direction of the flexible insulating layer 10, the distance from the edge of the conductive layer 11 to the edge of the flexible insulating layer 10 is greater than or equal to 1 mm and less than or equal to 50 mm.

[0181] In this embodiment, along the width direction of the flexible insulating layer 10, the distance from the edge of the conductive layer 11 to the edge of the flexible insulating layer 10 is greater than or equal to 1 mm and less than or equal to 50 mm, which not only ensures the electrical clearance but also can ensure the range of electric field coverage.

[0182] In a specific application, along the width direction of the flexible insulating layer 10, the distance from the edge of the conductive layer 11 to the edge of the flexible insulating layer 10 is any value among 2 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 40 mm, and 50 mm.

[0183] In some embodiments, optionally, the width of the flexible insulating layer 10 is less than or equal to twice the width of the electrode layer 16.

[0184] In this embodiment, the width of the flexible insulating layer 10 is less than or equal to twice the width of the electrode layer 16, such that the flexible insulating layer 10 can play a supporting role without protruding beyond the electrode layer 16, thereby reducing the cost of the flexible insulating layer 10.

[0185] Optionally, the width of the flexible insulating layer 10 is less than or equal to the width of the electrode layer 16. According to some embodiments of the present application, optionally, the flexible insulating layer 10 includes an insulating film or an insulating plastic sheet.

[0186] In this embodiment, the flexible insulating layer 10 includes an insulating film or an insulating plastic sheet, which can not only achieve winding but also ensure the insulation effect between adjacent electrode sheets 1.

[0187] According to some embodiments of the present application, optionally, the thickness of the flexible insulating layer 10 is greater than or equal to 0.1 mm and less than or equal to 1 mm.

[0188] In this embodiment, the thickness of the flexible insulating layer 10 is between 0.1 mm and 1 mm, which can achieve insulation between adjacent electrode sheets 1.

[0189] In a specific application, the thickness of the flexible insulating layer 10 is any value among 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, or is between any two values.

[0190] According to some embodiments of the present application, optionally, the conductive layer 11 includes any one of a metal foil, a conductive thin film, or a flexible conductive sheet coated with a conductive coating, or the conductive layer 11 is prepared by conductive silver paste.

[0191] In this embodiment, the conductive layer 11 includes any one of a metal foil, a conductive thin film, or a flexible conductive sheet coated with a conductive coating, or the conductive layer 11 is prepared by conductive silver paste.

[0192] According to some embodiments of the present application, optionally, the surface resistance of the conductive layer 11 is less than or equal to 1×10 8 Ω; and / or the thickness of the conductive layer 11 is greater than or equal to 0.01 mm and less than or equal to 1 mm.

[0193] In this embodiment, the surface resistance of the conductive layer 11 is less than or equal to 1×10 8 Ω, ensuring that when the electrode sheet 1 is relatively long, the applied voltage will not show a significant attenuation; the thickness of the conductive layer 11 is set between 0.01 mm and 1 mm, which can ensure the electric field strength.

[0194] In some embodiments, optionally, the surface resistance value of the conductive layer 11 is less than or equal to 1×10 7 Ω.

[0195] In this embodiment, the surface resistance of the conductive layer 11 is less than or equal to 1×10 7 Ω, ensuring that when the length of the electrode sheet 1 is relatively long, the applied voltage will not show a significant attenuation.

[0196] According to an embodiment of the present invention, a dust collection assembly 2 is further proposed, including: a plurality of electrode sheets 1 as described in any of the above embodiments.

[0197] The dust collection assembly 2 provided by the present invention includes the electrode sheet 1 as described in any of the above embodiments, and thus has all the beneficial effects of the electrode sheet 1.

[0198] Such as Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 And Figure 10 As shown, according to some embodiments of the present application, optionally, a plurality of electrode sheets 1 are sequentially stacked and wound.

[0199] In this embodiment, a plurality of electrode sheets 1 are sequentially stacked and can be wound into various forms, thereby reducing the space occupied by the electrode sheet 1 and improving the applicability of the dust collection assembly 2 in different devices.

[0200] Optionally, adjacent electrode sheets 1 enclose an air duct 26 through a limiting portion 102 to achieve the adsorption of media such as dust in the air.

[0201] According to some embodiments of the present application, optionally, as Figures 8 to 10 、 Figure 18 、 Figure 19 、 Figure 20 And Figure 21 As shown, a plurality of electrode sheets 1 are sequentially laminated and wound around the center of the dust collection assembly 2 to form a spiral dust collection structure 22; or a plurality of electrode sheets 1 are sequentially laminated and stacked in a reciprocating manner around the circumference of the dust collection assembly 2.

[0202] In this embodiment, after a plurality of electrode sheets 1 are stacked in sequence, they are convolutionally wound around the center of the dust collection assembly 2 to form a spiral dust collection structure 22, which reduces the space occupation and improves the adsorption effect on the charged medium. Alternatively, after a plurality of electrode sheets 1 are stacked in sequence, they are stacked back and forth circumferentially around the dust collection assembly 2. For example, after a plurality of electrode sheets 1 are stacked, they are wound clockwise around the circumference of the dust collection assembly 2 for one circle, then bent counterclockwise, and stacked on the surface of the previous circle along the counterclockwise direction, and so on to wind into the dust collection assembly 2. Of course, it is also possible that after a plurality of electrode sheets 1 are stacked, they are wound counterclockwise around the circumference of the dust collection assembly 2 for one circle, then bent clockwise, and stacked on the surface of the previous circle along the clockwise direction, and so on to wind into the dust collection assembly 2.

[0203] In some embodiments, optionally, when a plurality of electrode sheets 1 are convolutionally wound into a spiral dust collection structure 22, the electric field is distributed in a divergent manner in the radial direction with the winding center of the electrode sheet 1 as the center of the circle, and the directions of the electric fields generated in adjacent gaps are different.

[0204] In this embodiment, after a plurality of electrode sheets 1 are alternately stacked one by one and wound into a spiral dust collection structure 22, gaps are formed between adjacent stacked conductive layers 11. The spiral dust collection structure 22 makes the electric field in the gap distributed in a divergent manner in the radial direction with the winding center of the electrode sheet 1 as the center of the circle. Furthermore, the distance between the gap and the winding center gradually increases as the number of winding turns increases, so that the dust collection volume gradually increases and the dust collection amount is improved. Specifically, the spiral winding method makes the directions of the electric fields generated in adjacent gaps different.

[0205] Among them, as Figure 9 shown, the direction of the electric field is indicated by the dotted arrow. Specifically, the electric field is arranged in a divergent manner along the normal direction with the winding center of the electrode sheet 1 as the center. As Figure 6 shown, the direction of the electric field is indicated by the arrow. In the adjacent stacked electrode sheets 1, an electric field is formed in the direction from the positive electrode sheet 14 to the negative electrode sheet 15, and the directions of adjacent electric fields are all different.

[0206] According to some embodiments of the present application, optionally, one of the adjacent electrode sheets 1 stacked in sequence is a positive electrode sheet 14, and the other is a negative electrode sheet 15. The positive electrode sheet 14 and the negative electrode sheet 15 can generate an electric field when energized to adsorb the charged medium through the electric field.

[0207] In this embodiment, the plurality of electrode sheets 1 include a positive electrode sheet 14 and a negative electrode sheet 15. When energized, an electric field is formed at the gap between the positive electrode sheet 14 and the negative electrode sheet 15, and then an adsorption force is generated on the charged medium.

[0208] Optionally, the electric field also has the function of sterilization and disinfection. Therefore, the dust collection assembly 2 can achieve the effects of dust removal and sterilization.

[0209] As Figure 23 , Figure 24 , Figure 25 and Figure 26 shown, according to an embodiment of the present invention, an air purification device 3 is further provided, including: the electrode sheet 1 proposed in any one of the above, or the dust collection assembly 2 proposed in any one of the above.

[0210] The air purification device 3 provided by the present invention includes the electrode sheet 1 or the dust collection assembly 2 proposed in any of the above embodiments, and thus has all the beneficial effects of the electrode sheet 1 or the dust collection assembly 2.

[0211] Specifically, the air purification device 3 includes an air purifier, or a humidifying and purifying integrated machine, or an air conditioner, or a fan.

[0212] Optionally, the air purification device 3 includes an ion generator 32. The ion generator 32 is used to generate charges so that the medium carries charges, and the electrode sheet 1 in the dust collection assembly 2 forms an electric field and adsorbs the charged medium through the electric field.

[0213] Optionally, the air purification device 3 further includes a power supply device 20. The power supply device 20 is connected to the electrode sheet 1 and is used to provide a high-voltage power supply for the electrode sheet 1.

[0214] Optionally, the air purification device 3 further includes a fan blade 30, a fan cover 34, a grille 36 and a filter screen (such as the dust collection assembly 2). Among them, the ion generator 32, the fan blade 30 and the filter screen 38 are arranged inside the fan cover 34, and grilles 36 are arranged on both the front and rear sides of the fan cover 34.

[0215] According to an embodiment of the present application, optionally, the present invention relates to the field of air purification, and specifically relates to a purification and sterilization filter component; mainly introduces an adaptive electrode sheet (such as the electrode sheet 1). Through the design of the base material and structure of the electrode sheet 1, the electrode sheet 1 can automatically adjust the distance between the positive and negative plates and the electric field form when assembled into a filter component (such as the dust collection assembly 2), without the need for brackets and gluing. The special design of the electrode sheet 1 can also increase the dust collection area. While improving the dust collection efficiency, using the electrode sheet 1 to make a dust collection module will greatly reduce the processing cost of the purification and sterilization filter component, and solve problems such as fixed electric field form, complex processing technology and easy deformation.

[0216] The main working principle of electrostatic purification is to first charge the particulate matter through a charging device, and then the charged particles are adsorbed when passing through the electric field region of the dust collection component 2. At the same time, the electric field also has the function of sterilization and disinfection, so as to achieve the purpose of purifying air quality. In related technologies, due to the particularity of the electrical connection method of the dust collection component and the electric field formation mechanism, whether it is a traditional metal parallel plate dust collector or a strong electric field filter with a dielectric material as the carrier, such as an IFD (Intense Field Dielectric, a strong electric field using a dielectric material as the carrier) filter, the morphology is relatively single, mostly rectangular or simple arc-shaped, and plate-shaped. Moreover, in related technologies, in terms of controlling the distance between the positive electrode and the negative electrode, an external spacer and hot melt adhesive are used to achieve it, and the process is complex. However, this application solves the problems of fixed electric field morphology, complex processing technology, and easy deformation.

[0217] The adaptive flexible electrode sheet includes a conductive layer 11 and an insulating layer (such as a flexible insulating layer 10) with a limiting structure (such as a limiting part 102). The limiting structure of the insulating layer with a limiting structure is a number of protrusions 104. Using this flexible electrode sheet as the positive electrode (such as the positive electrode sheet 14) and the negative electrode (such as the negative electrode sheet 15), the positive electrode and the negative electrode can be stacked or wound in parallel to form the dust collection component 2. The flexible electrode sheet can be connected to a high-voltage power supply through an electrical connection point (such as an electrical connection part 13), and when energized, the dust collection component 2 can form an electric field. One of the positive electrode and the negative electrode is a dust collection electrode, and the other is a repulsion electrode.

[0218] The adaptive flexible electrode sheet includes a conductive layer 11 and an insulating layer with a limiting structure. The limiting structure is a number of protrusions 104 arranged on the surface of the insulating layer. The height of the protrusions 104 is between 0.5 mm and 10 mm, the structural distance between adjacent protrusions 104 is between 2 mm and 100 mm, and the width of the protrusions 104 is between 0.1 mm and 10 mm, and it can be solid or hollow.

[0219] The main body of the insulating layer with a limiting structure is an insulating plastic sheet or film, including PC, PET, PP, PS, etc., with a thickness of 0.1 mm to 1.0 mm.

[0220] The conductive layer 11 includes a metal foil, a conductive coating, or a conductive thin film, etc., which is coated or adhered to the insulating base layer, and then adhered and compounded with the flexible insulating layer 10 with a limiting structure, or can also be directly coated or adhered to the insulating layer with a limiting structure. The insulating base layer includes PC, PET, PP, PS, etc., with a thickness of 0.1 mm to 1.0 mm. The surface resistance of the conductive layer 11 ≤ 10 8 Ω, ensuring that when the flexible electrode sheet is relatively long, the applied voltage will not show obvious attenuation.

[0221] The distance from the edge of the conductive layer 11 to the edge of the insulating base 12 or the edge of the insulating layer with the limiting structure is ≥1.0 mm, thereby ensuring that discharge and sparking problems will not occur when high voltage is applied.

[0222] The conductive layer 11 is coated or bonded on an insulating base layer (such as an insulating base 12), and then composited with an insulating layer with a limiting structure. This can completely seal the conductive layer 11, insulate the surface of the electrode sheet 1, and prevent leakage when powered on. The device can be touched by human hands, thereby improving the safety of the device.

[0223] Specifically, the adaptive flexible electrode can be used as the positive electrode and the negative electrode. The dust collecting component 2 can be made by stacking or winding the positive electrode and the negative electrode in parallel. The positive electrode and the negative electrode are connected to the output end of the high-voltage power supply through an electrical connection point. When power is turned on, the integrated component can form an electric field.

[0224] The protrusion 104 arranged on the insulating layer with a limiting structure can stably control the distance between the positive and negative poles of the dust collecting component 2 when stacking or winding, which greatly reduces the process difficulty and processing cost of the dust collecting component 2. At the same time, the protrusion 104 can also increase the dust collecting area of the dust collecting component 2 and improve the dust removal and sterilization effect of the dust collecting component 2.

[0225] The positive electrode and the negative electrode include N adaptive flexible electrode sheets, wherein N≥1.

[0226] The positive electrode and the negative electrode are made into a dust collecting component 2 by stacking, reciprocating winding along the central axis or other similar processes that can be associated with the first two assembly methods, ensuring the structural characteristics that the positive electrode and the negative electrode are always adjacent. The integrated component as a whole can be circular, elliptical spiral or square spiral, etc.

[0227] During operation, the parallel adjacent positive and negative electrodes are respectively connected to the output end of the high voltage power supply through electrical connection points to form an electric field in the dust collecting component 2 area.

[0228] The electrical connection point is located at the end of the flexible electrode sheet, and the electrical connection method is to connect to the conductive layer 11 of the flexible electrode sheet through a wire, a metal sheet or a metal buckle.

[0229] The adaptive flexible electrode sheet can be directly wound into a special-shaped filter screen to control the distance between the positive and negative electrodes of the dust collecting component 2, greatly reducing the process difficulty and processing cost of the dust collecting component 2. At the same time, the protrusion 104 can also increase the dust collecting area of the dust collecting component 2 and enhance the dust removal and sterilization effect of the dust collecting component 2.

[0230] According to some embodiments of the present application, optionally, the air purification device includes a positive electrode, a negative electrode and a support structure 24 with a concave-convex structure (such as a limiting portion 102), and the positive electrode and the negative electrode are flexible electrode sheets with an insulated surface and conductive interior.

[0231] The electrode sheet 1 includes a conductive base film (such as the electrode layer 16) and a support (such as the flexible insulating layer 10). The conductive base film is composed of an insulating substrate 12 at the top, a conductive layer 11 in the middle, and an insulating substrate 12 at the bottom. The surface of the support is provided with a support uneven structure (such as the limiting part 102). Two groups of electrode sheets 1 are wound in parallel to form the positive and negative electrodes of the dust collection assembly. The uneven structure can control the distance between the positive and negative electrodes. During operation, the positive and negative electrodes are respectively connected to the output terminals of the high-voltage power supply, and an electric field is formed between the positive and negative electrodes. The gap between the flat positive and negative electrodes and the uneven structure is the air passage (such as the air duct 26).

[0232] The conductive base film and the support can be directly laminated and wound, or can be compounded into one body through an adhesive or a film and then wound. After compounding, the connection between the support and the conductive base film is stronger, and water will not enter between the conductive base film and the support during cleaning, making it easier to dry;

[0233] The insulating substrate 12 of the conductive base film is a polymer film, including PET, PVC, PP, PC, etc., or a composite film of several materials, such as PET composite PE film, PVC composite PE film, etc. The thickness of the film is 0.01mm - 1.0mm, and the breakdown field strength resistance needs to be ≥100KV / mm.

[0234] The conductive layer 11 of the conductive base film is a metal foil, conductive silver paste or conductive ink, etc., and the surface resistance ≤10 7 Ω, which is coated or adhered to one of the insulating substrates 12 of the conductive base film. The width of the conductive layer 11 < the width of the insulating substrate 12, and it is centrally distributed in the middle position of the insulating substrate 12. The distance between the conductive layer 11 and the edge of the insulating substrate 12 in the width direction is 1.0mm - 10mm, and the thickness of the conductive layer 11 is 0.01mm - 1.0mm.

[0235] After the conductive layer 11 of the conductive base film is coated on one of the insulating substrate 12 layers, it is hermetically connected to the other insulating substrate 12 through an adhesive or a film. The adhesive is TPU, acrylic acid, polyurethane, etc.

[0236] The surface of the support is provided with at least one row of uneven structures. The distance between the uneven structures is 1mm ≤ d1 ≤ 100mm. The height of the convex point (such as the protrusion 104) (i.e., the distance between the positive and negative electrodes) is 0.5mm ≤ h ≤ 20mm. The ratio of the width d2 of the convex point to the height h is 0.1 ≤ d2 / h ≤ 5. The ratio of the length L of the convex point to the width D of the support is 0.01 ≤ L / D < 1;

[0237] The support is a polymer film material, which can be an insulating or antistatic material, including PET, PVC, PP, PC, etc., or a composite film of several materials, such as PET composite PE film, PVC composite PE film, etc.

[0238] The width D of the support member ≤ the width of the conductive base film.

[0239] The provision of the concavo-convex structure enables the electrode sheet 1 to self-control the electrode spacing during the assembly process, greatly reducing the processing difficulty of the electrostatic dust collection device. However, due to the existence of the concavo-convex structure, if the conductive layer 11 is not insulated in advance, pores will be formed at the concavo-convex structure, increasing the risk of electrical breakdown during the operation of the electrode sheet 1. Therefore, the conductive electrode sheet 1 is preferably set into an insulated and sealed structure to improve the service life and use safety of the electrode sheet 1.

[0240] In the present invention, the term "a plurality of" means two or more, unless otherwise clearly defined. Terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0241] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0242] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrode sheet for a dust collection assembly, characterized in that, The electrode sheet is a flexible electrode sheet, and the electrode sheet includes: A flexible insulating layer, on which a plurality of spaced limiting parts are provided; A conductive layer, provided on one side of the flexible insulating layer and connected to the flexible insulating layer.

2. The electrode sheet according to claim 1, wherein, The conductive layer is coated or adhered to the flexible insulating layer.

3. The electrode sheet according to claim 1, wherein, The flexible insulating layer includes an insulating material, and / or The electrode sheet further includes: an insulating substrate, the conductive layer is provided on the insulating substrate, and the insulating substrate is provided on the flexible insulating layer.

4. The electrode sheet according to claim 3, wherein One side of the insulating substrate where the conductive layer is provided is connected to the flexible insulating layer; and / or The conductive layer is coated or adhered to the insulating substrate; and / or The insulating substrate is adhered to the flexible insulating layer.

5. The electrode sheet according to claim 3, characterized in that, The insulating substrate includes any one of PC, PET, PP, PS, PVC, PET composite PE, and PVC composite PE; and / or The thickness of the insulating substrate is greater than or equal to 0.1 mm and less than or equal to 1.0 mm; and / or The breakdown strength of the insulating substrate is greater than or equal to 100 KV / mm.

6. The electrode sheet according to claim 3, wherein The insulating substrates are provided on both sides of the conductive layer, and the conductive layer and the insulating substrates on both sides of the conductive layer form an electrode layer.

7. The electrode sheet according to claim 6, wherein The conductive layer and the insulating substrates on both sides of the conductive layer are of an integral structure.

8. The electrode sheet according to claim 6, characterized in that, Among the two insulating substrates, the conductive layer is coated or adhered to one side of one insulating substrate and adhered to the other insulating substrate.

9. The electrode sheet according to claim 6, wherein The flexible insulating layer and the electrode layer are stacked, or the flexible insulating layer and the electrode layer are adhered into an integral structure.

10. The electrode sheet according to any one of claims 3 to 9, characterized in that, The width of the conductive layer is smaller than the width of the insulating substrate.

11. The electrode sheet according to claim 10, wherein, Along the width direction of the insulating substrate, the distance between the edge of the conductive layer and the edge of the insulating substrate is greater than or equal to 1 mm and less than or equal to 10 mm; and / or Along the width direction of the insulating substrate, the distance between one side of the conductive layer and the edge of the insulating substrate is a first distance, and the distance between the other side of the conductive layer and the edge of the insulating substrate is a second distance, and the difference between the first distance and the second distance is less than or equal to 0.5 mm.

12. The electrode sheet according to any one of claims 1 to 9, characterized in that, It further includes: An electrical connection part, which is electrically connected to the conductive layer and is used to connect a power supply device.

13. The electrode sheet according to claim 12, wherein, Along the length direction of the flexible insulating layer, the electrical connection part is located at the end of the conductive layer; and / or The electrical connection part includes a metal part or a wire.

14. The electrode sheet according to any one of claims 1 to 9, characterized in that, The limiting part includes a protrusion, and the protrusion is provided on the same side or different sides of the flexible insulating layer.

15. The electrode sheet according to claim 14, wherein The protrusion is provided on one side of the flexible insulating layer, and the conductive layer is provided on the other side of the flexible insulating layer.

16. The electrode sheet according to claim 14, wherein, The plurality of protrusions are arranged in at least one row.

17. The electrode sheet according to claim 16, wherein When the plurality of protrusions are arranged in multiple rows, the plurality of protrusions in adjacent two rows are arranged opposite to or staggered from each other along the width direction of the flexible insulating layer.

18. The electrode sheet according to claim 14, characterized in that, Along the length direction of the flexible insulating layer, the distance between the centers of adjacent protrusions is d1, the width of any one protrusion is d2; the height of the protrusion is h; along the width direction of the flexible insulating layer, the length of the protrusion is L, and the width of the flexible insulating layer is D, wherein, d1 satisfies the following relational expression: 1 mm ≤ d1 ≤ 100 mm; and / or d2 satisfies the following relational expression: 0.1 mm ≤ d2 ≤ 10 mm; and / or h satisfies the following relational expression: 0.5 mm ≤ h ≤ 20 mm; and / or d2 and h satisfy the following relational expression: 0.1 ≤ d2 / h ≤ 5; and / or L and D satisfy the following relational expression: 0.01 ≤ L / D < 1; and / or the distance between adjacent ones of the protrusions is greater than or equal to 0.5 mm and less than or equal to 100 mm; and / or the difference in height h between any two of the protrusions is greater than or equal to 0 mm and less than or equal to 1 mm.

19. The electrode sheet according to claim 18, wherein, the height h of the protrusion is greater than or equal to 0.5 mm and less than or equal to 10 mm.

20. The electrode sheet according to any one of claims 1 to 9, characterized in that, the edge of the conductive layer is located within the area enclosed by the edges of the flexible insulating layer.

21. The electrode sheet according to claim 20, characterized in that, along the width direction of the flexible insulating layer, the distance from the edge of the conductive layer to the edge of the flexible insulating layer is greater than or equal to 1 mm and less than or equal to 50 mm.

22. The electrode sheet according to any one of claims 6 to 9, characterized in that, the width of the flexible insulating layer is less than or equal to twice the width of the electrode layer.

23. The electrode sheet according to any one of claims 1 to 9, wherein the flexible insulating layer includes an insulating film or an insulating plastic sheet; and / or the thickness of the flexible insulating layer is greater than or equal to 0.1 mm and less than or equal to 1 mm; and / or the conductive layer includes any one of a metal foil, a conductive thin film, or a flexible conductive sheet coated with a conductive coating, or the conductive layer is prepared by conductive silver paste; and / or The surface resistance of the conductive layer is less than or equal to 1×10 8 Ω; and / or the thickness of the conductive layer is greater than or equal to 0.01 mm and less than or equal to 1 mm.

24. The electrode sheet according to claim 23, wherein, The surface resistance value of the conductive layer is less than or equal to 1×10 7 Ω.

25. A dust collection component, characterized in that, comprising: a plurality of electrode sheets according to any one of claims 1 to 24.

26. The dust collection assembly according to claim 25, characterized in that, the plurality of electrode sheets are sequentially stacked and wound.

27. The dust collection component according to claim 26, characterized in that, the plurality of electrode sheets are sequentially laminated and wound around the center of the dust collection assembly to form a spiral dust collection structure; or the plurality of electrode sheets are sequentially laminated and wound around the dust collection assembly and stacked in a reciprocating manner in the circumferential direction.

28. The dust collection assembly according to claim 27, wherein one of the adjacent electrode sheets that are sequentially stacked is a positive electrode sheet, and the other is a negative electrode sheet. The positive electrode sheet and the negative electrode sheet can generate an electric field when energized to adsorb a charged medium through the electric field.

29. An air purification device, characterized in that, comprising: an electrode sheet according to any one of claims 1 to 24, or a dust collection assembly according to any one of claims 25 to 28.

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