Filter element, filter device and fan

Abstract

A filter element (10), comprising: a substrate (100), at least some surfaces of the substrate (100) being arranged oppositely and in parallel; protrusions (200), the protrusions (200) being arranged on the substrate (100), such that airflow channels (400) are formed between the surfaces arranged oppositely and in parallel; and catalytic portions (300) arranged on the circumferential surfaces of the airflow channels (400). Further provided are a filter device and a fan.

Description

Filter element, filter device and fan

[0001] The present application claims priority to the Chinese patent application No. 202411102861.0, filed on August 12, 2024, and entitled "Filter element, filter device and fan", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the fan technical field, in particular, relates to a filter element, filter device and fan. BACKGROUND

[0003] In the related art, the fan lacks a filter device for purifying air, and the function of the fan is single, which cannot meet the air purification while air supply, affecting the air supply experience. SUMMARY

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

[0005] To this end, the first aspect of the present application provides a filter element.

[0006] The second aspect of the present application provides a filter element.

[0007] The third aspect of the present application provides a filter device.

[0008] The fourth aspect of the present application provides a fan.

[0009] Therefore, the first aspect of the present application provides a filter element, comprising: a base material, at least part of the surface of the base material is arranged oppositely and parallelly; a protruding part, the protruding part is arranged on the base material to form an airflow channel between the oppositely and parallelly arranged surfaces; a catalytic part, arranged on the circumferential surface of the airflow channel.

[0010] The filter element provided by the present application comprises a base material, a protruding part and a catalytic part.

[0011] The protruding part is arranged on the base material, that is, the base material serves as the mounting carrier of the protruding part, and has the function of mounting and fixing the protruding part.

[0012] At least part of the surface of the base material is arranged oppositely and parallelly, that is, the projection plane of the oppositely and parallelly arranged surfaces in the same direction overlaps, for example, the base material can be folded and / or the base material can be arranged to be curved to meet the use requirement of the overlapping arrangement of the projection plane of at least part of the surface of the base material.

[0013] It can be understood that the at least partial surface of the substrate includes a first surface and a second surface, at least a part of the projection of the first surface on the second surface overlaps the second surface, that is, the first surface and the second surface are oppositely and parallelly arranged, and the protrusion is located between the first surface and the second surface, and the protrusion is used to form an air flow channel between the first surface and the second surface. The oppositely and parallelly arranged at least partial surface of the substrate, that is, the at least partial surface of the substrate is oppositely and equally spaced, so that the use demand of generating an electrostatic field can be met.

[0014] The protrusion is arranged on the substrate to form an air flow channel between the oppositely and parallelly arranged surfaces of the substrate. The air flow can pass through the filter element via the air flow channel, so that it is beneficial to reduce the wind resistance of the filtering device using the filter element, reduce the influence on the wind speed, and further ensure the working efficiency of the fan.

[0015] It can be understood that the catalytic part is arranged on the circumferential surface of the air flow channel. The catalytic part can decompose and filter harmful substances (such as formaldehyde) in the air to ensure the cleanliness and harmlessness of the air flow passing through the filtering device. For example, the catalytic part includes one or more transition metal oxides, and the catalytic part includes manganese oxide exemplarily. After the material surface of the catalytic part adsorbs formaldehyde molecules, the formaldehyde molecules are decomposed, and the catalytic part itself is not consumed, so that the catalytic oxidation reaction can be repeatedly performed to purify the air. The fan using the filter element can have the function of purifying the air.

[0016] In addition, the catalytic part is arranged on the circumferential surface forming the air flow channel, and the circumferential surface is the surface through which the air flow can flow through the air flow channel. The air flow can pass through the filter element via the air flow channel and increase the contact area with the catalytic part, further reducing the filtering wind resistance while improving the purification effect.

[0017] The second aspect of the present application provides a filter element, comprising: a plurality of substrates, the plurality of substrates are arranged in layers, each substrate includes a conductive layer, and the conductive layers of adjacent two substrates are oppositely arranged; an insulating part, the insulating part is arranged on the side of the conductive layer away from the substrate, so as to form an air flow channel between the oppositely arranged surfaces of the plurality of substrates; the adjacent conductive layers forming the air flow channel can generate an electric field under the condition of being electrified, so as to enable the air flow channel to adsorb the medium carrying electric charge through the electric field; and a catalytic part, arranged on the surface forming the air flow channel.

[0018] The third aspect of the present application provides a filtering device, comprising: the filter element as in the first aspect, and / or the filter element as in the second aspect.

[0019] The fourth aspect of the present application provides a fan, comprising: the filtering device as in the third aspect.

[0020] Additional aspects and advantages of the present application will become apparent in the following description section, or can be understood by practicing the present application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 shows a structural schematic diagram of the filter element of the first embodiment of this application from a first perspective.

[0023] Figure 2 shows a structural schematic diagram of the filter element of the first embodiment of this application from a second perspective;

[0024] Figure 3 shows a partial structural schematic diagram of the filter element according to the first embodiment of this application;

[0025] Figure 4 shows a partial structural schematic diagram of the substrate of the first embodiment of this application;

[0026] Figure 5 shows a schematic diagram of the structure of the filter element according to the second embodiment of this application;

[0027] Figure 6 shows a schematic diagram of the structure of a filtering device according to an embodiment of this application;

[0028] Figure 7 shows an exploded view of a filtering device according to an embodiment of this application;

[0029] Figure 8 shows an exploded view of a portion of the structure of a fan according to an embodiment of this application.

[0030] The correspondence between the reference numerals and component names in Figures 1 to 8 is as follows: 10 Filter element, 100 Substrate, 100a Positive electrode substrate, 100b Negative electrode substrate, 110 First end face, 120 Second end face, 130 Flexible segment, 140 Substrate layer, 150 Conductive layer, 200 Protrusion, 210 End face, 300 Catalytic part, 400 Airflow channel, 600 Insulating part, 70 Filter device, 700 Frame, 710 Column, 800 Limiting part, 90 Fan, 900 Cover, 910 Air inlet, 920 Air outlet, 1000 Fan blade, 1100 Ion generator. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0033] The following refers to the filter element 10, the filter device 70 and the fan 90 according to some embodiments of the present application with reference to FIG. 1 to FIG. 8.

[0034] As shown in FIG. 1, FIG. 2 and FIG. 3, a filter element 10 according to some embodiments of the present application comprises a substrate 100, at least part of the surface of the substrate 100 is arranged oppositely and parallelly, a protruding part 200 is arranged on the substrate 100 to form an airflow channel 400 between the oppositely and parallelly arranged surfaces, and a catalytic part 300 is arranged on the circumferential surface of the airflow channel 400.

[0035] The filter element 10 provided by the present application comprises the substrate 100, the protruding part 200 and the catalytic part 300.

[0036] The protruding part 200 is arranged on the substrate 100, that is, the substrate 100 serves as the mounting carrier of the protruding part 200, and has the function of mounting and fixing the protruding part 200.

[0037] At least part of the surface of the substrate 100 is arranged oppositely and parallelly, that is, the projection of the oppositely and parallelly arranged surfaces in the same direction overlaps, for example, the substrate 100 can be folded and / or the substrate 100 can be arranged in a curved manner to meet the use requirement of the overlapped arrangement of the projection of at least part of the surface of the substrate 100.

[0038] It can be understood that at least part of the surface of the substrate 100 comprises a first surface and a second surface, at least part of the projection of the first surface on the second surface overlaps the second surface. That is, the first surface and the second surface are arranged oppositely and parallelly, the protruding part 200 is located between the first surface and the second surface, and the protruding part 200 is used to form the airflow channel 400 between the first surface and the second surface. The oppositely and parallelly arranged at least part of the surface of the substrate 100, that is, the oppositely and equally spaced at least part of the surface of the substrate 100, can meet the use requirement of generating electrostatic field.

[0039] The protruding part 200 is arranged on the substrate 100 to form the airflow channel 400 between the oppositely and parallelly arranged surfaces of the substrate 100. The airflow can pass through the filter element 10 via the airflow channel 400, which is conducive to reducing the wind resistance of the filter device 70 using the filter element 10, reducing the influence on the wind speed, and further ensuring the working efficiency of the fan 90.

[0040] It can be understood that the catalytic part 300 is arranged on the circumferential surface of the air flow channel 400. The catalytic part 300 can decompose and filter harmful substances (such as formaldehyde) in the air to ensure the cleanliness and harmlessness of the air flow passing through the filtering device 70. For example, the catalytic part 300 includes one or more transition metal oxides, and the catalytic part 300 includes manganese oxide exemplarily. After the material surface of the catalytic part 300 adsorbs formaldehyde molecules, the catalytic part 300 decomposes the formaldehyde molecules, and the catalytic part 300 itself is not consumed, so that the catalytic oxidation reaction can be repeatedly performed to purify the air. Therefore, the fan 90 using the filtering element 10 can have the function of purifying the air.

[0041] In addition, the catalytic part 300 is arranged on the circumferential surface of the air flow channel 400. The circumferential surface is a surface through which the air flow can flow through the air flow channel 400. The air flow can pass through the filtering element 10 through the air flow channel 400 and increase the contact area with the catalytic part 300, thereby further reducing the filtering air resistance while improving the purification effect.

[0042] The embodiment provides a filtering element 10. In addition to the technical features of the above-mentioned embodiments, the embodiment further includes the following technical features. As shown in FIG. 2, the number of the protruding parts 200 is a plurality, and the plurality of protruding parts 200 are arranged on the base material 100 at intervals to form a plurality of air flow channels 400 between the surfaces of the base material 100.

[0043] In this embodiment, the number of the protruding parts 200 is further limited, and the cooperation structure of the protruding part 200 and the base material 100 is further limited.

[0044] The number of the protruding parts 200 is a plurality, and the plurality of protruding parts 200 further have the effect of enclosing a plurality of air flow channels 400 with the base material 100. Taking the example that the base material 100 is bent into a plurality of annular base material layers 140, the plurality of protruding parts 200 are arranged on the base material 100 at intervals, and the protruding parts 200 are arranged between the adjacent two base material layers 140. That is, the protruding part 200 has the effect of supporting and fixing the adjacent two base material layers 140, and can ensure the uniformity and consistency of the spacing between the adjacent two base material layers 140. Since the protruding parts 200 are arranged at intervals, the protruding parts 200 and the plurality of base material layers 140 cooperate to enclose a plurality of air flow channels 400 between the adjacent two base material layers 140. The air flow can pass through the filtering element 10 through the plurality of air flow channels 400. Therefore, it is beneficial to reduce the air resistance of the filtering device 70 using the filtering element 10, reduce the influence on the air speed, and further ensure the working efficiency of the fan 90.

[0045] The embodiment provides a filtering element 10. In addition to the technical features of the above-mentioned embodiments, the embodiment further includes the following technical features. The base material 100 is a flexible base material, and is arranged to be bent to form the air flow channel 400.

[0046] In this embodiment, the type of the substrate 100 is further defined, specifically, the substrate 100 is a flexible substrate, and the flexible substrate is used to form the airflow passage 400 in a curved manner. The substrate 100 can not only carry the protrusions 200, but also has the advantage of variable shape. That is, the substrate 100 can be curved according to the actual use requirements to adjust the shape of the substrate 100. For example, the substrate 100 is curved into a multi-layer substrate layer 140, for example, the substrate 100 is curved into an "S" shape structure, for example, the substrate 100 is curved into a spiral structure. This arrangement can balance the size and the filtering area of the filter element 10, and increase the filtering area of the filter element 10 without significantly increasing the footprint of the filter element 10, which is beneficial to improve the filtering efficiency of the filter element 10.

[0047] For example, the deflection of the flexible substrate is greater than 10 mm.

[0048] In this embodiment, the type of the substrate 100 is further defined, specifically, the substrate 100 is a flexible substrate, and the flexible substrate is used to form the airflow passage 400 in a curved manner. The substrate 100 can not only carry the protrusions 200, but also has the advantage of variable shape. That is, the substrate 100 can be curved according to the actual use requirements to adjust the shape of the substrate 100. For example, the substrate 100 is curved into a multi-layer substrate layer 140, for example, the substrate 100 is curved into an "S" shape structure, for example, the substrate 100 is curved into a spiral structure. This arrangement can balance the size and the filtering area of the filter element 10, and increase the filtering area of the filter element 10 without significantly increasing the footprint of the filter element 10, which is beneficial to improve the filtering efficiency of the filter element 10.

[0049] In this embodiment, the shape of the flexible substrate is further defined.

[0050] Specifically, the flexible substrate is wound to form the airflow passage 400, and the flexible substrate is stacked to form a plurality of airflow passages 400 in the circumferential direction of the winding center. For example, the flexible substrate is wound into a spiral structure, that is, it is wound around the winding center to form a spiral structure. In this way, the flexible substrate and the plurality of protrusions 200 cooperate to form a plurality of airflow passages 400.

[0051] In this embodiment, the type of the substrate 100 is further defined, specifically, the substrate 100 is a flexible substrate, and the flexible substrate is used to form the airflow passage 400 in a curved manner. The substrate 100 can not only carry the protrusions 200, but also has the advantage of variable shape. That is, the substrate 100 can be curved according to the actual use requirements to adjust the shape of the substrate 100. For example, the substrate 100 is curved into a multi-layer substrate layer 140, for example, the substrate 100 is curved into an "S" shape structure, for example, the substrate 100 is curved into a spiral structure. This arrangement can balance the size and the filtering area of the filter element 10, and increase the filtering area of the filter element 10 without significantly increasing the footprint of the filter element 10, which is beneficial to improve the filtering efficiency of the filter element 10.

[0052] In this embodiment, the cooperation structure of the plurality of protrusions 200 and the substrate 100 is defined, so that the plurality of protrusions 200 are arranged on the same side of the substrate 100. In this way, when the substrate 100 is curved to form a multi-layer substrate layer 140, the plurality of protrusions 200 can cooperate with the multi-layer substrate layer 140 to ensure the cooperation gap between the adjacent two layers of the substrate layer 140, and ensure the effectiveness and feasibility of the plurality of airflow passages 400 formed.

[0053] In this embodiment, the type of the substrate 100 is further defined, specifically, the substrate 100 is a flexible substrate, and the flexible substrate is used to form the airflow passage 400 in a curved manner. The substrate 100 can not only carry the protrusions 200, but also has the advantage of variable shape. That is, the substrate 100 can be curved according to the actual use requirements to adjust the shape of the substrate 100. For example, the substrate 100 is curved into a multi-layer substrate layer 140, for example, the substrate 100 is curved into an "S" shape structure, for example, the substrate 100 is curved into a spiral structure. This arrangement can balance the size and the filtering area of the filter element 10, and increase the filtering area of the filter element 10 without significantly increasing the footprint of the filter element 10, which is beneficial to improve the filtering efficiency of the filter element 10.

[0054] In this embodiment, the cooperating structure of the substrate 100 and the plurality of protrusions 200 is further limited, wherein the substrate 100 is a strip-shaped substrate, the plurality of protrusions 200 are arranged on the same side of the substrate 100, and the plurality of protrusions 200 are arranged along the length direction of the substrate 100.

[0055] This arrangement is more convenient for the plurality of protrusions 200 to cooperate with the plurality of substrate layers 140, which can ensure the effectiveness of the formation of the plurality of substrate layers 140 and the plurality of airflow channels 400.

[0056] In this embodiment, the cooperating structure of the substrate 100 and the protrusions 200 is further limited, so that the outer edge of the substrate 100 is located outside the outer edge of the protrusions 200. That is, a part of the substrate 100 protrudes out of the outer edge of the protrusions 200. In this way, when the substrate 100 is bent to form different shapes, the protrusions 200 will not protrude out of the substrate 100. If the protrusions 200 protrude out of the substrate 100 when the substrate 100 is bent, the overall size of the filter element 10 will be increased, and the filtering efficiency of the filter element 10 will not be improved. Therefore, the use performance of the filter element 10 will be reduced.

[0057] It can be understood that the outer edge of the substrate 100 is located outside the outer edge of the protrusions 200, which can ensure the effectiveness and reliability of the formation of the plurality of airflow channels 400, without increasing the material input of the protrusions 200 too much, which is conducive to increasing the flow cross-sectional area of the airflow channels 400, reducing the wind resistance of the filtering device 70 using the filter element 10, reducing the influence on the wind speed, and further ensuring the working efficiency of the fan 90.

[0058] The filter element 10 provided in this embodiment further includes the following technical features in addition to the technical features of the above embodiments. As shown in FIG. 4, the substrate 100 includes a conductive layer 150, and the plurality of protrusions 200 are arranged on the same side of the conductive layer 150. The protrusions 200 are made of insulating material, and / or the substrate 100 includes insulating material.

[0059] In this embodiment, the structure of the substrate 100 is further limited, and the substrate 100 further includes a conductive layer 150. The plurality of protrusions 200 are arranged on the same side of the conductive layer 150. For example, the conductive layer 150 is arranged on the oppositely arranged surfaces of the substrate 100, the plurality of protrusions 200 are arranged on the side of the conductive layer 150 away from the substrate 100, so that the gap between the oppositely arranged surfaces forms the airflow channel 400, the conductive layer 150 faces the airflow channel 400, and under the condition of being electrified, the oppositely arranged conductive layers 150 have a voltage difference, an electric field is formed in the airflow channel 400, and dust or other small particulate matters with negative charges in the airflow are adsorbed.

[0060] When the substrate 100 is curled and / or folded, the protruding part 200 is located between the adjacent conductive layers 150, providing sufficient gap between the adjacent conductive layers 150, ensuring the gap between the adjacent conductive layers 150 is fixed, avoiding contact between the adjacent conductive layers 150, thereby ensuring the stability of the electric field generated by the filter 10, realizing the adsorption of dust and other media, and without the need to add a card strip or hot melt glue to fix the substrate 100, greatly reducing the process difficulty and processing cost of the filter 10, and without affecting the appearance of the filter 10. At the same time, the setting of the protruding part 200 also increases the distance between the adjacent conductive layers 150, thereby increasing the dust collection area of the filter 10 and improving the dust removal and sterilization effect.

[0061] It can be understood that when the substrate 100 is curled and / or folded, an electric field can be generated between the adjacent conductive layers 150, and the filter 10 can adsorb the medium carrying electric charge in the passing airflow, so that when the fan 90 is working, it can remove dust, disinfect and sterilize the air, realize air purification, and avoid dust accumulation inside the fan 90, thereby improving the comfort of the fan 90.

[0062] Further, the protruding part 200 is made of an insulating material, and / or the substrate 100 includes an insulating material. This setting ensures the stability of the electric field generated by the conductive layer 150, realizes the adsorption of dust and other media, and can meet the safety requirements, providing structural support for the safety and reliability of product use.

[0063] The embodiment provides a filter 10, in addition to the technical features of the above-mentioned embodiments, the embodiment further includes the following technical features: the filter 10 includes a plurality of substrates 100, the plurality of substrates 100 are oppositely arranged, and the protruding part 200 is arranged between the substrates 100 to form an airflow channel 400.

[0064] In this embodiment, the number and arrangement position of the substrate 100 are further limited.

[0065] The filter 10 includes a plurality of substrates 100, the plurality of substrates 100 are oppositely arranged, and the protruding part 200 is arranged between the substrates 100 to form an airflow channel 400. That is, the protruding part 200 is arranged between the two adjacent substrates 100 to ensure the effectiveness of the airflow channel 400.

[0066] Exemplarily, the plurality of substrates 100 includes a first substrate and a second substrate, the conductive layer 150 of the first substrate is a positive electrode layer, and the conductive layer 150 of the second substrate is a negative electrode layer.

[0067] The embodiment provides the filter 10, in addition to the technical features of the above-mentioned embodiments, and further comprises the following technical features: as shown in FIG. 3, the catalytic part 300 is further arranged on the protruding part 200; and / or the substrate 100 has a first end surface 110 and a second end surface 120 in the thickness direction, and the first end surface 110 and the second end surface 120 are both provided with the catalytic part 300.

[0068] In the embodiment, the matching structure of the catalytic part 300 and the protruding part 200 is further limited, so that the catalytic part 300 is further arranged on the protruding part 200, that is, the catalytic part 300 is arranged not only on the substrate 100, but also on the protruding part 200. The arrangement increases the arrangement position of the catalytic part 300, increases the catalytic area of the catalytic part 300, and is beneficial to improving the filtering efficiency of the filter 10, and further beneficial to improving the working efficiency of the air purification equipment.

[0069] In the embodiment, the matching structure of the substrate 100 and the catalytic part 300 is further limited, so that the substrate 100 has a first end surface 110 and a second end surface 120 in the thickness direction of the substrate 100. The first end surface 110 is provided with the catalytic part 300, and the second end surface 120 is provided with the catalytic part 300. That is, the first end surface 110 and the second end surface 120 are both provided with the catalytic part 300. The arrangement can adapt to the substrate 100 curved into different shapes, such as the substrate 100 curved into a plurality of substrate layers 140, such as the substrate 100 curved into a spiral shape, and the like. In this way, the catalytic demand of the substrate 100 curved into different shapes can be met, and the filtering efficiency of the filter 10 can be ensured.

[0070] The embodiment provides the filter 10, in addition to the technical features of the above-mentioned embodiments, and further comprises the following technical features: as shown in FIG. 3, at least a part of the catalytic part 300 and the protruding part 200 are located on the same side of the substrate 100; along the thickness of the substrate 100, the thickness of the part of the catalytic part 300 and the protruding part 200 located on the same side of the substrate 100 is t1, the thickness of the protruding part 200 is t2, and t1<0.2×t2.

[0071] In the embodiment, the matching structure of the catalytic part 300 and the protruding part 200 is further limited, so that at least a part of the catalytic part 300 and the protruding part 200 are located on the same side of the substrate 100. That is, a part of the catalytic part 300 and the protruding part 200 are located on the same side of the substrate 100, or the catalytic part 300 and the protruding part 200 are located on the same side of the substrate 100.

[0072] Wherein, along the thickness of the substrate 100, the thickness of the portion where the catalytic part 300 and the protruding part 200 are located on the same side of the substrate 100 is denoted as t1, the thickness of the protruding part 200 is denoted as t2, and t1 < 0.2 x t2. In this way, the thickness of the catalytic part 300 and the flow cross-sectional area of the airflow passage 400 are taken into account, so that the filtering efficiency and the wind resistance of the filtering device 70 are taken into account, and the working efficiency of the air purification equipment can be ensured.

[0073] The embodiment provides a filtering piece 10, in addition to the technical features of the above-mentioned embodiments, and further comprises the following technical features: as shown in FIG. 2, the end face 210 of the protruding part 200 away from the substrate 100 is smoothly arranged.

[0074] In the embodiment, the structure of the protruding part 200 is further limited, so that the end face 210 of the protruding part 200 away from the substrate 100 is smoothly arranged. In this way, when the protruding part 200 abuts between two adjacent substrate layers 140, the protruding part 200 will not scratch the substrate 100 and / or the catalytic part 300, thereby providing structural support to ensure the filtering effect of the filtering piece 10. In addition, the structure setting will not cause the protruding part 200 to be raised at the abutting position with the substrate 100, and the effectiveness and reliability of the formed airflow passage 400 can be ensured, and the situation that the multiple substrate layers 140 are scattered apart is not prone to occur.

[0075] Exemplarily, the end face 210 of the protruding part 200 away from the substrate 100 comprises a plane and / or a curved surface.

[0076] The embodiment provides a filtering piece 10, in addition to the technical features of the above-mentioned embodiments, and further comprises the following technical features: the substrate 100 and the protruding part 200 are integrally formed.

[0077] In the embodiment, the matching structure of the substrate 100 and the protruding part 200 is further limited, so that the substrate 100 and the plurality of protruding parts 200 are integrally formed. The structure setting simplifies the forming process of the substrate 100 and the protruding part 200 by omitting the assembly process of the substrate 100 and the protruding part 200, which is beneficial to improve the processing efficiency of the product. In addition, the integrally formed substrate 100 and the plurality of protruding parts 200 can ensure the dimensional accuracy of the product.

[0078] The embodiment provides a filtering piece 10, in addition to the technical features of the above-mentioned embodiments, and further comprises the following technical features: as shown in FIG. 3, the substrate 100 comprises a plurality of flexible sections 130 connected in sequence.

[0079] In this embodiment, the fitting structure of the substrate 100 is further defined, such that the substrate 100 comprises a plurality of flexible segments 130 connected in sequence, that is, the substrate 100 is a structure in which a plurality of flexible segments 130 are spliced, capable of meeting the use requirement of bearing a plurality of protruding parts 200, and also capable of meeting the use requirement of bearing a catalytic part 300.

[0080] The filter 10 provided in this embodiment further comprises the following technical feature in addition to the technical features of the above embodiments: the flexible substrate comprises a plastic sheet and / or a metal sheet.

[0081] In this embodiment, the type of the substrate 100 is defined.

[0082] The flexible substrate comprises a plastic sheet and / or a metal sheet. This arrangement can meet the use requirement of bending the substrate 100 according to the specific actual use requirement to adjust the shape of the substrate 100.

[0083] The filter 10 provided in this embodiment further comprises the following technical feature in addition to the technical features of the above embodiments: the catalytic part 300 comprises a metal oxide part.

[0084] In this embodiment, the catalytic part 300 comprises a metal oxide part. Specifically, the catalytic part 300 comprises one or more of transition metal oxides, and exemplarily, the catalytic part 300 comprises manganese oxide. After the material surface of the catalytic part 300 adsorbs formaldehyde molecules, the formaldehyde molecules are decomposed, and the catalytic part 300 itself is not consumed, so that the catalytic oxidation reaction can be repeatedly performed, and the air can be purified.

[0085] As shown in FIG. 5, according to the filter 10 provided in some embodiments of the present application, the filter 10 comprises a plurality of substrates 100, the plurality of substrates 100 are arranged in layers, each substrate 100 comprises an electrically conductive layer 150, and the electrically conductive layers 150 of two adjacent substrates 100 are oppositely arranged; an insulating part 600 is arranged on the side of the electrically conductive layer 150 away from the substrate 100, so as to form an airflow channel 400 between the opposite surfaces of the plurality of substrates 100; the adjacent electrically conductive layers 150 forming the airflow channel 400 can generate an electric field under the condition of being electrified, so as to adsorb the medium carrying electric charges through the electric field; and a catalytic part 300 is arranged on the surface forming the airflow channel 400.

[0086] The filter 10 provided in the present application comprises a plurality of substrates 100, an insulating part 600 and a catalytic part 300.

[0087] The plurality of substrates are stacked, each substrate 100 comprises a conductive layer 150, the conductive layers 150 of two adjacent substrates 100 are oppositely arranged, and the insulating part 600 is arranged on the side of the conductive layer 150 away from the substrate 100, so as to form an air flow channel 400 between the opposite surfaces of the plurality of substrates 100. The electric field can be generated between the adjacent conductive layers 150 under the condition of being electrified, and the filter element 10 can adsorb the medium carrying electric charge in the passing air flow, so that the fan 90 can decontaminate, disinfect and sterilize the air when working, realize the purification of the air, and further avoid the accumulation of dust in the fan 90, and improve the comfort of the fan 90.

[0088] In combination with the catalytic part 300, the catalytic part 300 is arranged on the surface forming the air flow channel 400, and the catalytic part 300 can decompose and filter harmful substances (such as formaldehyde and volatile organic compounds) in the air, so as to ensure the cleanliness and harmlessness of the air flow passing through the filter device 70. By means of electrostatic dust collection technology, the conductive layer 150 is arranged on the filter element 10 to form an electrostatic field to adsorb dust particles with negative charge. The catalytic part 300 for air purification is coated on the surface of the air flow channel 400, which can realize the purposes of adsorbing dust and purifying air at the same time, so as to remove harmful substances such as formaldehyde and volatile organic compounds, and further improve the air purification effect.

[0089] Exemplarily, the plurality of substrates 100 comprise a first substrate and a second substrate, the conductive layer 150 of the first substrate is a positive electrode layer, and the conductive layer 150 of the second substrate is a negative electrode layer.

[0090] As shown in FIGS. 6 and 7, according to another embodiment of the present application, the filter device 70 comprises the filter element 10 of any of the above embodiments.

[0091] The filter device 70 provided by the present application comprises the filter element 10 of any of the above embodiments, and therefore has all the beneficial effects of the filter element 10, which will not be repeated here.

[0092] The embodiment provides a filter device 70, in addition to the technical features of the above embodiments, the embodiment further comprises the following technical features, as shown in FIGS. 6 and 7, the filter device 70 further comprises a frame 700, the frame 700 comprises a stand 710, and the filter element 10 is arranged around the stand 710.

[0093] In this embodiment, the structure of the filter device 70 is further limited, so that the filter device 70 further comprises a frame 700, the frame 700 comprises a stand 710, and the filter element 10 is arranged around the stand 710.

[0094] The filter element 10 is arranged around the stand 710, and the base material 100 is bent to form the multi-layer base material layer 140. This arrangement can balance the size and the filtering area of the filter element 10, and increase the filtering area of the filter element 10 without significantly increasing the floor area of the filter element 10, which is conducive to improving the filtering efficiency of the filter element 10.

[0095] In addition to the technical features of the above embodiments, the filter device 70 of the present embodiment further comprises the following technical features. As shown in FIG. 6, when the filter element 10 comprises the protruding portions 200, the base material 100 is bent to form the multi-layer base material layer 140, and any two adjacent base material layers 140 are arranged at intervals by the plurality of protruding portions 200.

[0096] In this embodiment, any two adjacent base material layers 140 are arranged at intervals by the plurality of protruding portions 200. The protruding portions 200 have the function of supporting the two adjacent base material layers 140, and the protruding portions 200 also have the function of enclosing the airflow channels 400 with the base material 100. For example, when the base material 100 is bent to form the multi-layer annular base material layer 140, the plurality of protruding portions 200 are arranged on the base material 100, and the plurality of protruding portions 200 are arranged between the two adjacent base material layers 140. That is, the plurality of protruding portions 200 have the function of supporting and fixing the two adjacent base material layers 140, and can ensure the uniformity and consistency of the spacing between the two adjacent base material layers 140. Since the plurality of protruding portions 200 are arranged at intervals, the plurality of protruding portions 200 and the multi-layer base material layer 140 cooperate to enclose the plurality of airflow channels 400 between the two adjacent base material layers 140. The airflow can pass through the filter element 10 through the plurality of airflow channels 400, which is conducive to reducing the wind resistance of the filter device 70 using the filter element 10, reducing the influence on the wind speed, and thus ensuring the working efficiency of the air purification equipment.

[0097] In addition to the technical features of the above embodiments, the filter device 70 of the present embodiment further comprises the following technical features. A part of the plurality of protruding portions 200 abut between the stand 710 and the base material 100; or the base material 100 is attached to the stand 710.

[0098] In this embodiment, the cooperation structure of the filter element 10 and the stand 710 is further limited, so that a part of the plurality of protruding portions 200 abut between the stand 710 and the base material 100. That is, a part of the plurality of protruding portions 200 abut between the stand 710 and the base material 100, and the other part of the plurality of protruding portions 200 is located between the two adjacent base material layers 140.

[0099] This arrangement reasonably utilizes the cooperation structure of the base material 100, the plurality of protruding portions 200, and the stand 710.

[0100] When assembling the stand 710 and the filter element 10, the protruding portion 200 is brought into abutment with the stand 710, and then the base material 100 is bent so as to wrap around the stand 710 to form the multi-layer base material layer 140. It can be understood that the base material layer 140 is a layer arranged in a ring shape.

[0101] In this embodiment, the cooperation structure of the filter element 10 and the stand 710 is further defined so that the base material 100 is attached to the stand 710. That is, when assembling the stand 710 and the filter element 10, the base material 100 is brought into abutment with the stand 710, and then the base material 100 is bent so as to wrap around the stand 710 to form the multi-layer base material layer 140. It can be understood that the base material layer 140 is a ring-shaped layer. In this embodiment, the base material 100 is located between the protruding portion 200 and the stand 710, and any two adjacent base material layers 140 are spaced apart by the plurality of protruding portions 200.

[0102] In this embodiment, the cooperation structure of the filter element 10 and the stand 710 is further defined so that the base material 100 is attached to the stand 710. That is, when assembling the stand 710 and the filter element 10, the base material 100 is brought into abutment with the stand 710, and then the base material 100 is bent so as to wrap around the stand 710 to form the multi-layer base material layer 140. It can be understood that the base material layer 140 is a ring-shaped layer. In this embodiment, the base material 100 is located between the protruding portion 200 and the stand 710, and any two adjacent base material layers 140 are spaced apart by the plurality of protruding portions 200.

[0103] In this embodiment, the cooperation structure of the filter element 10 and the stand 710 is further defined so that the base material 100 is attached to the stand 710. That is, when assembling the stand 710 and the filter element 10, the base material 100 is brought into abutment with the stand 710, and then the base material 100 is bent so as to wrap around the stand 710 to form the multi-layer base material layer 140. It can be understood that the base material layer 140 is a ring-shaped layer. In this embodiment, the base material 100 is located between the protruding portion 200 and the stand 710, and any two adjacent base material layers 140 are spaced apart by the plurality of protruding portions 200.

[0104] In this embodiment, the cooperation structure of the filter element 10 and the stand 710 is further defined so that the base material 100 is attached to the stand 710. That is, when assembling the stand 710 and the filter element 10, the base material 100 is brought into abutment with the stand 710, and then the base material 100 is bent so as to wrap around the stand 710 to form the multi-layer base material layer 140. It can be understood that the base material layer 140 is a ring-shaped layer. In this embodiment, the base material 100 is located between the protruding portion 200 and the stand 710, and any two adjacent base material layers 140 are spaced apart by the plurality of protruding portions 200.

[0105] In this embodiment, the cooperation structure of the filter element 10 and the stand 710 is further defined so that the base material 100 is attached to the stand 710. That is, when assembling the stand 710 and the filter element 10, the base material 100 is brought into abutment with the stand 710, and then the base material 100 is bent so as to wrap around the stand 710 to form the multi-layer base material layer 140. It can be understood that the base material layer 140 is a ring-shaped layer. In this embodiment, the base material 100 is located between the protruding portion 200 and the stand 710, and any two adjacent base material layers 140 are spaced apart by the plurality of protruding portions 200.

[0106] As shown in Fig. 8, a fan 90 according to still another embodiment of the present application comprises the filtering device 70 according to any of the above embodiments.

[0107] The fan 90 according to the present application has all the advantages of the filtering device 70 according to any of the above embodiments, which will not be repeated here.

[0108] The fan 90 according to the present application has all the advantages of the filtering device 70 according to any of the above embodiments, which will not be repeated here.

[0109] In this embodiment, the fan 90 further comprises the housing 900, the fan blade 1000 and the ion generator 1100.

[0110] The fan blade 1000 and the filtering device 70 are both arranged in the housing 900, and the housing 900 protects the fan blade 1000 and the filtering device 70. The housing 900 comprises the air inlet 910 and the air outlet 920, and the filtering device 70 is arranged between the air inlet 910 and the fan blade 1000. When the fan blade 1000 works, it blows air to the air outlet 920, so that the air flow can flow between the air inlet 910 and the air outlet 920, and then the air flow can pass through the filtering device 70. The filtering device 70 can form an electric field after being powered on and adsorb the charged medium through the electric field, so that the filtering device 70 can adsorb the charged medium in the passing air flow, so that the fan 90 can decontaminate, disinfect and sterilize the air while blowing air, realize air purification, and avoid dust accumulation in the fan 90, thereby improving the comfort of the fan 90.

[0111] The filtering device 70 is arranged between the fan blade 1000 and the air inlet 910. The air flow outside the fan 90 enters the housing 900 through the air inlet 910, then passes through the filtering device 70, and then the dust and other substances in the air are removed through the adsorption treatment of the filtering device 70. Then, the air flow is sent out of the air outlet 920 after passing through the fan blade 1000, which can avoid dust passing through the fan blade 1000, thereby effectively improving the dust accumulation problem of the fan blade 1000.

[0112] The fan 90 further comprises an ion generator 1100 arranged in the cover 900, the ion generator 1100 is capable of generating ions, so that the medium entering the cover 900 carries an electric charge, and the magnetic field generated after the filter device 70 is powered on is capable of adsorbing the medium carrying the electric charge, so that the airflow passing through the fan 90 is purified, and the comfort of the air supply of the fan 90 is improved. In addition, the filter device 70 can form an electric field after being powered on and adsorb the medium carrying the electric charge through the electric field, so as to ensure the performance requirements of the air supply and dust collection and purification of the fan 90 under the premise that the wind resistance coefficient of the fan 90 meets the conditions.

[0113] Exemplarily, the base material 100 comprises a plastic sheet, a metal sheet, or the like, which are not listed one by one here.

[0114] In some other embodiments, the base material 100 has a first end surface 110 and a second end surface 120 in the thickness direction of the base material 100, the first end surface 110 is provided with a part of the plurality of protrusions 200, and the second end surface 120 is provided with another part of the plurality of protrusions 200.

[0115] Exemplarily, t1 = 0.18 * t2, t1 = 0.16 * t2, t1 = 0.15 * t2, t1 = 0.14 * t2, t1 = 0.12 * t2, t1 = 0.1 * t2, and the like, which are not listed one by one here.

[0116] Exemplarily, the limiting piece 800 is connected with the filter piece 10 in a clamping manner, the limiting piece 800 is connected with the filter piece 10 in an adhesive manner, and the like, which are not listed one by one here.

[0117] The fan 90 of the present application has a purification efficiency of more than 90% per hour for formaldehyde and a wind speed loss of less than 5%.

[0118] The fan 90 of the present application uses a flexible material as the base material 100, coats the catalytic part 300, and winds to form a purification filter screen.

[0119] The filter piece 10 comprises a base material 100, a plurality of protrusions 200, and a catalytic part 300. The base material 100 is a long strip-shaped film, and the base material 100 is provided with the catalytic part 300. The film is rotated around a column 710 (such as a central shaft) to form a circular ring-shaped multi-layer base material layer 140, and there are gaps between different base material layers 140 (airflow channels are enclosed between adjacent two base material layers 140 and the plurality of protrusions 200).

[0120] The base material 100 comprises a thin plastic sheet or a thin metal sheet. The base material 100 has a certain strength and bendability, the thickness of the base material 100 is greater than or equal to 0.1 mm and less than or equal to 0.8 mm.

[0121] The substrate 100 can be an integral structure, or the substrate 100 (e.g., the substrate 100 includes a plurality of flexible segments 130) can be connected in a splicing manner segment by segment. The length of the substrate 100 is greater than 0.5 m, and the width of the substrate 100 is greater than or equal to 5 mm and less than or equal to 30 mm.

[0122] The substrate 100 has a plurality of protrusions 200 on one side, and the outer edge of the substrate 100 is located outside the outer edge of the protrusions 200. The width of the protrusions 200 is greater than or equal to 1 mm and less than or equal to 5 mm. The height of the protrusions 200 is greater than or equal to 1 mm and less than or equal to 5 mm, and the distance between adjacent two protrusions 200 is greater than or equal to 10 mm and less than or equal to 100 mm. The top end of the protrusions 200 away from the substrate 100 is smoothly arranged, and the top end of the protrusions 200 away from the substrate 100 includes a plane and / or an arc surface.

[0123] The stand 710 of the filter device 70 is a shaft structure, and the diameter of the shaft structure is less than 50 mm. The filter device 70 includes a limiting piece 800 connected with the shaft, and the limiting piece 800 is used for fixing the annularly wound filter piece 10.

[0124] The long-strip-shaped substrate 100 is coated with catalytic parts 300 on both sides, and the catalytic parts 300 uniformly cover the surface of the substrate 100, and the coverage area of the catalytic parts 300 accounts for more than 80% of the total area of the entire substrate 100. Along the thickness of the substrate 100, the thickness of the part where the catalytic part 300 and the protrusion 200 are located on the same side of the substrate 100 is denoted as t1, and the thickness of the protrusion 200 is denoted as t2, t1<0.2×t2.

[0125] The catalytic part 300 is one or more of transition metal oxides, and exemplarily, manganese oxide.

[0126] In the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connecting" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0127] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "certain embodiments", etc. means that the particular feature, structure, material or characteristic being described in connection with the embodiment or example is included in at least one embodiment or example of the application. The illustrative appearance of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the description of the particular feature, structure, material or characteristic can be combined in any one or more embodiments or examples in a suitable manner. The above-mentioned only is the preferred embodiment of the application, and is not used to limit the application. For those skilled in the art, the application can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A filter element, wherein, Comprising: a substrate, at least part of the surface of the substrate is oppositely and parallel arranged; a protrusion, the protrusion is provided on the substrate to form an airflow channel between the oppositely and parallel arranged surfaces; a catalytic part, provided on the circumferential surface of the airflow channel.

2. The filter element of claim 1, wherein, The number of protrusions is multiple, and multiple protrusions are arranged on the substrate to form multiple airflow channels between the surfaces of the substrate.

3. The filter element of claim 2, wherein, The substrate is a flexible substrate, which is arranged to be bent to form the airflow channel.

4. The filter element of claim 3, wherein, The flexible substrate is wound to form the airflow channel, and in the circumferential direction of the winding center, the flexible substrate is stacked to form multiple airflow channels.

5. The filter element of any of claims 2-4, wherein, The substrate is a strip-shaped substrate, and multiple protrusions are arranged along the length direction of the substrate, and / or the outer edge of the substrate is located outside the outer edge of the protrusion.

6. The filter element of any of claims 2-5, wherein, The substrate includes a conductive layer, and multiple protrusions are arranged on the same side of the conductive layer; wherein the protrusion is an insulating material, and / or the substrate includes an insulating material.

7. The filter element of any one of claims 1 to 6, wherein, The filter includes multiple substrates, and multiple substrates are oppositely arranged, and the protrusions are arranged between the substrates to form the airflow channel.

8. The filter element of any one of claims 1 to 7, wherein, The catalytic part is also provided on the protrusion; and / or, The substrate has a first end surface and a second end surface in the thickness direction, and the first end surface and the second end surface are both provided with the catalytic part.

9. The filter element of any of claims 1-8, wherein, At least part of the catalytic part and the protrusion are located on the same side of the substrate; In the thickness direction of the substrate, the thickness of the part where the catalytic part and the protrusion are located on the same side of the substrate is t1, and the thickness of the protrusion is t2, t1<0.2×t2.

10. The filter element of any one of claims 1 to 9, wherein, The end surface of the protrusion away from the substrate is smoothly arranged.

11. The filter element of any of claims 1 to 10, wherein, The substrate and the protrusion are integrally formed.

12. The filter element of claim 3 or 4, wherein, The flexible substrate includes a plastic sheet and / or a metal sheet.

13. The filter element of any of claims 1-12, wherein, The catalytic part includes a metal oxide part.

14. A filter element, wherein, Comprising: Multiple substrates, multiple substrates are stacked, and each substrate includes a conductive layer, and the conductive layers of adjacent two substrates are oppositely arranged; An insulating part, the insulating part is provided on the side of the conductive layer away from the substrate to form an airflow channel between the oppositely arranged surfaces of multiple substrates; The adjacent conductive layers forming the airflow channel can generate an electric field under the condition of power-on, so that the airflow channel can adsorb charged media through the electric field; A catalytic part is provided on the surface forming the airflow channel.

15. A filter device, wherein, Comprising: The filter of any one of claims 1 to 13; And / or The filter of claim 14.

16. The filter device of claim 15, wherein, Further comprising: A frame including a column, and the filter is arranged around the column.

17. The filter device of claim 16, wherein, When the filter includes the protrusion, the substrate is arranged to be bent to form multiple substrate layers, and any two adjacent substrate layers are arranged to be spaced apart by multiple protrusions.

18. The filter device of claim 17, wherein, Part of the multiple protrusions abut between the column and the substrate; or The substrate is attached to the column.

19. The filter device of any one of claims 16 to 18, wherein, Further comprising: A limiting piece connected with the column, and the limiting piece is used to fix the filter.

20. The filter device of any one of claims 16 to 19, wherein, The multiple substrates of the filter include positive electrode substrates and negative electrode substrates; An electric field can be formed between the positive electrode substrate and the negative electrode substrate when the filter is electrified.

21. A fan, wherein, The filter device comprises: The filter device according to any one of claims 15 to 20.

22. The fan of claim 21, wherein, The filter device further comprises: A cover body is provided with an air inlet and an air outlet; A fan is arranged in the cover body for supplying air to the air outlet; The filter device is arranged in the cover body and located between the air inlet and the fan; An ion generator is arranged in the cover body for charging the medium, and an electric field can be formed by electrifying the filter device and adsorbing the charged medium by the electric field.

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