Multi-material bonding dustproof net

Abstract

The utility model relates to a multi-material bonding dustproof net which comprises a first filtering layer used for conducting primary filtering treatment on air, and one side of the first filtering layer is fixedly connected with an acoustic waterproof breathable film used for conducting medium-efficiency filtering on moisture in the air and dust in the air. And the acoustic waterproof breathable film is fixedly connected with a second filter layer for efficiently filtering air. Through the arrangement of the first filter layer, the acoustic waterproof breathable film and the second filter layer, air is subjected to primary, medium and efficient filtering treatment, and the stable dustproof effect can be achieved; meanwhile, an acoustic waterproof breathable film is arranged between the first filter layer and the second filter layer, so that water in the air is filtered in the process of medium-efficiency treatment of the air. And when water enters the first filter layer and the acoustic waterproof breathable film bracket, water drops can be effectively prevented from entering the second filter layer through the acoustic waterproof breathable film.

Description

Technical Field

[0001] The utility model relates to the technical field of dust-proof nets, in particular to a multi-material bonded dust-proof net. Background Technique

[0002] With the rapid development of electronic products, the replacement cycle is getting shorter and shorter, and the requirements for the performance of electronic products are getting higher and higher. In common modern electronic products, the requirements for airtightness, dust-proof performance, and waterproof performance of electronic products are increasing. A small and inconspicuous component, the dust-proof net, is used in common electronic products. When the requirements for airtightness, dust-proof performance, and waterproof performance of electronic products increase, it is equivalent to putting forward higher requirements for the dust-proof net.

[0003] Some of the existing dust-proof nets for electronic products have a relatively simple structure and a relatively low filtration efficiency. Fine dust can still enter the electronic products through the gaps in the filter screen, affecting the structure. At the same time, the conventional dust-proof net structure does not have a waterproof effect. When water enters the structure, it cannot provide good protection, which easily leads to damage to the electronic products. The structure lacks stable protection and safety. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a multi-material bonded dust-proof net to solve the problems mentioned in the above background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a multi-material bonded dust-proof net, including a first filter layer for primary filtration of air. One side of the first filter layer is fixedly connected with an acoustic waterproof and breathable membrane for medium filtration of moisture and dust in the air. The acoustic waterproof and breathable membrane is fixedly connected with a second filter layer for high-efficiency filtration of air.

[0006] Compared with the prior art, by setting the first filter layer, acoustic waterproof and breathable membrane, and second filter layer structures to respectively perform primary, medium, and high-efficiency filtration of air, stable dust-proofing can be achieved. At the same time, the design of the acoustic waterproof and breathable membrane between the first filter layer and the second filter layer filters the moisture in the air during the medium filtration of air. And when water enters between the first filter layer and the acoustic waterproof and breathable membrane, it can effectively prevent water droplets from passing through the acoustic waterproof and breathable membrane and entering the second filter layer.

[0007] As an improvement of the multi-material bonded dust-proof net of the utility model, it further includes a first support layer and a second support layer with the same structure. The first filter layer is fixedly connected with the first support layer, and the second filter layer is fixedly connected with the second support layer.

[0008] Compared with the prior art, the first support layer and the second support layer fix the first filter layer, the acoustic waterproof and breathable membrane, and the second filter layer, ensuring the stability of the overall structure and the installation dimensions of the structure.

[0009] As an improvement of the multi-material bonded dust-proof net of the present utility model, the first filter layer is arranged in a wavy shape between the first support layer and the acoustic waterproof and breathable membrane.

[0010] As an improvement of the multi-material bonded dust-proof net of the present utility model, a fan-shaped channel is arranged between the first filter layer and the first support layer.

[0011] Compared with the prior art, the contact area between the first filter layer and the air is increased, further improving the primary filtration effect of the first filter layer.

[0012] As an improvement of the multi-material bonded dust-proof net of the present utility model, a support is arranged between the acoustic waterproof and breathable membrane and the first filter layer, and the support is fixedly connected to the first filter layer.

[0013] Compared with the prior art, it is ensured that the first filter layer cannot be deformed during use or under the action of external forces, thereby protecting the acoustic waterproof and breathable membrane.

[0014] As an improvement of the multi-material bonded dust-proof net of the present utility model, edge layers are fixedly connected to the two side edges of the first support layer and the second support layer.

[0015] As an improvement of the multi-material bonded dust-proof net of the present utility model, the support is woven from synthetic fibers.

[0016] As an improvement of the multi-material bonded dust-proof net of the present utility model, the second filter layer is made of a paper filter material.

[0017] As an improvement of the multi-material bonded dust-proof net of the present utility model, an adhesive layer is arranged on one side of the second support layer.

[0018] In addition to the technical problems solved by the present invention, the technical features constituting the technical solution, and the advantages brought by these technical features of the technical solution described above, other technical problems that the present utility model can solve, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail with reference to the accompanying drawings. Description of the Drawings

[0019] Figure 1 It is a cross-sectional view of the present utility model.

[0020] Explanation of the reference numerals in the drawings: 01. First support layer, 02. Second support layer, 03. Edge wrapping layer, 04. First filter layer, 05. Sector channel, 06. Acoustic waterproof and breathable membrane, 07. Support, 08. Second filter layer, 09. Gluing layer. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0022] Please refer to Figure 1 As shown, the present utility model relates to a multi-material bonded dust-proof net, which includes a first support layer 01 and a second support layer 02. Edge wrapping layers 03 are arranged on the two side edges of the first support layer 01 and the second support layer 02 by means of glue pasting. Through the arrangement of the first support layer 01, the second support layer 02 and the edge wrapping layers 03 on both sides of the first support layer 01 and the second support layer 02, a cavity is thus arranged between the first support layer 01 and the second support layer 02. Both the first support layer 01 and the second support layer 02 are made of polyvinyl chloride or polyurethane rubber, and a plurality of mesh holes are formed on both the first support layer 01 and the second support layer 02, enabling air or sound to freely shuttle through the mesh holes. At the same time, the overall stability of the dust-proof net is improved through the design of the edge wrapping layer 03, and at the same time, it prevents air from directly entering the cavity from the first support layer 01 and the second support layer 02.

[0023] A first filter layer 04 is arranged in the cavity. The first filter layer 04 is made of non-woven fabric, and the first filter layer 04 is fixedly connected to the first support layer 01 by means of hot pressing. When air enters the cavity from the mesh holes on the first support layer 01, it first comes into contact with the first filter layer 04. Since the first filter layer 04 is wavy, the contact area between the first filter layer 04 and the air is thus increased. The first filter layer 04 filters large particle dust in the air and adsorbs it on the surface of the first filter layer 04. The first filter layer 04 is arranged in a wavy shape, so a sector channel 05 is formed between the first filter layer 04 and the first support layer 01. After the large particle dust is adsorbed on the surface of the first filter layer 04, air is blown into the sector channel 05 through the mesh holes on the first support layer 01 or a cleaning brush is passed through the mesh holes on the first support layer 01 into the sector channel 05 to clean the large particles adsorbed on the first filter layer 04, so that the large particle dust falls from the surface of the first filter layer 04 into the sector channel 05 and is discharged from the mesh holes on the first support layer 01, thus facilitating the cleaning of the particulate dust adsorbed on the first filter layer 04.

[0024] One side of the first filter layer 04 is fixedly connected with an acoustic waterproof and breathable membrane 06 by hot melting. The characteristics of the acoustic waterproof and breathable membrane 06 are utilized to isolate moisture and dust by the acoustic waterproof and breathable membrane 06, thereby preventing moisture and other corrosive liquids from entering. And when water enters the first filter layer and the acoustic waterproof and breathable membrane bracket, it can effectively prevent water droplets from entering the second filter layer through the acoustic waterproof and breathable membrane. Thus, the electronic components and circuits located on one side of the second support layer 02 are protected from damage caused by moisture and corrosion. At the same time, its breathable performance also ensures the air pressure balance on both sides of the acoustic waterproof and breathable membrane 06. When the utility model is applied to a speaker or a receiver, it can also ensure clear sound transmission. It uses special high-transmission sound materials to minimize the sound loss during the sound transmission process and obtain a high-quality sound quality experience.

[0025] To improve the stability of the first filter layer 04 in the cavity, a support 07 is provided between the acoustic waterproof and breathable membrane 06 and the first filter layer 04. The support 07 and the first filter layer 04 are fixedly connected by hot melting or integrally formed. The acoustic waterproof and breathable membrane 06 and the support 07 are fixedly connected by hot melting. The support 07 is woven from synthetic fibers. The provision of the support 07 provides a supporting effect for the first filter layer 04 to ensure that the first filter layer 04 cannot be deformed during use or under the action of external forces. Thus, the acoustic waterproof and breathable membrane 06 is protected.

[0026] To further filter the air, a second filter layer 08 is glued on the acoustic waterproof and breathable membrane 06. The second support layer 02 and the second filter layer 08 are fixedly connected by hot melting. The second filter layer 08 uses a paper filter material. The paper filter material forms a dense network structure on the surface, which can well capture dust particles, pollen and other fine particles. Thus, fine dust in the air is filtered. Since the paper filter material cannot work in a high-humidity environment, an acoustic waterproof and breathable membrane 06 is provided on one side of the second filter layer 08, so as to prevent the moisture in the air from directly acting on the second filter layer 08, thereby ensuring that the second filter layer 08 works in a relatively dry environment. The service life of the second filter layer 08 is prolonged.

[0027] To facilitate the installation of the dust-proof net, an adhesive layer 09 is provided on one side of the first support layer 01 or the second support layer 02. A number of through holes are provided on the adhesive layer 09. When installation is required, it can be adhered through the adhesive layer 09.

[0028] When the present utility model is in use, since a first filter layer 04, a support 07, an acoustic waterproof and breathable membrane 06, and a second filter layer 08 are sequentially arranged between a first support layer 01 and a second support layer 02, when air flows from the first support layer 01 to the second support layer 02, the air first contacts the first filter layer 04 through the mesh holes on the first support layer 01. The first filter layer 04 intercepts large particle dust in the air to play a role of primary filtration. The filtered air passes through the support 07 and then passes through the acoustic waterproof and breathable membrane 06, filtering moisture and dust in the air again, playing a role of waterproofing and at the same time playing a role of medium - efficiency filtration. Finally, the air passes through the second filter layer 08 to filter the air in sequence, playing a role of high - efficiency filtration. It is equivalent to triple - filtering the air and at the same time playing a role of waterproofing.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model.

[0030] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "set", "connected", "fixed", "swiveling connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] The above - mentioned embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary engineering and technical personnel in the art to the technical solution of the present utility model should all fall within the protection scope determined by the claims of the present utility model.

Claims

1. A multi-material bonded dust-proof net, characterized in that, It includes a first filter layer for primary filtration of air. One side of the first filter layer is fixedly connected with an acoustic waterproof and breathable membrane for medium filtration of moisture and dust in the air. The acoustic waterproof and breathable membrane is fixedly connected with a second filter layer for high-efficiency filtration of air.

2. The multi-material bonded dust-proof net according to claim 1, wherein: It further includes a first support layer and a second support layer with the same structure. The first filter layer is fixedly connected with the first support layer, and the second filter layer is fixedly connected with the second support layer.

3. The multi-material bonded dust-proof net according to claim 2, characterized in that: The first filter layer is arranged in a wavy shape between the first support layer and the acoustic waterproof and breathable membrane.

4. The multi-material bonded dust-proof net according to claim 3, wherein: A fan-shaped channel is arranged between the first filter layer and the first support layer.

5. The multi-material bonded dust-proof net according to claim 4, characterized in that: A support is arranged between the acoustic waterproof and breathable membrane and the first filter layer, and the support is fixedly connected with the first filter layer.

6. The multi-material bonded dust-proof net according to claim 2, wherein: The two side edges of the first support layer and the second support layer are fixedly connected with a binding layer.

7. The multi-material bonded dust-proof net according to claim 5, characterized in that: The support is woven from synthetic fibers.

8. The multi-material bonded dust-proof net according to claim 1, wherein: The second filter layer is made of a paper filter material.

9. The multi-material bonded dust-proof net according to claim 2, characterized in that: A gluing layer is arranged on one side of the second support layer.

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