Waterproof membrane sound transmission assembly

Abstract

The utility model provides a waterproof membrane sound transmission assembly, which comprises a dustproof gauze, a connecting adhesive tape, a waterproof sound transmission membrane and a bonding layer, the dustproof gauze and the waterproof sound transmission membrane are bonded together through the connecting adhesive tape, the waterproof sound transmission membrane is bonded on an acoustic product through the bonding layer, a support material layer is bonded on the upper surface of the dustproof gauze, and the bonding layer is an AB double faced adhesive tape. The surface A of the AB double-faced adhesive tape is silica gel, the surface B of the AB double-faced adhesive tape is acrylic adhesive, the silica gel of the surface A is bonded with the acoustic product, and the acrylic adhesive of the surface B is bonded with the waterproof sound-transmitting film. The bonding layer is the AB double-faced adhesive tape, a traditional multi-layer structure is replaced, the processing flow can be reduced, and the thickness of the product can be better controlled; meanwhile, the dustproof gauze and the supporting material layer are additionally arranged outside the waterproof sound-transmitting membrane, the dustproof gauze has a good dustproof effect, pollution of dust to the waterproof sound-transmitting membrane can be effectively reduced, impact force is effectively reduced when water flow impact exists, and the waterproof effect is improved.

Description

A waterproof membrane acoustic component Technical Field

[0001] This utility model belongs to the field of waterproof and sound-permeable membranes for acoustic devices, and more specifically, relates to a waterproof and sound-permeable membrane component. Background Technology

[0002] With the rapid development of 5G networks, consumer electronics products are constantly being updated and iterated, especially smartphones, tablets, and wearable devices such as smartwatches and smart bracelets, whose shipments are rising rapidly, with wearable devices experiencing explosive growth. Besides smartphones and tablets, other types of smart terminal products are gradually penetrating people's lives, from smart appliances to smart homes and in-car navigation systems. These consumer electronics and smart terminal products mostly contain a large number of precision functional components. As product performance and appearance are constantly improved, the performance of these precision functional components is also continuously enhanced. To protect these precision functional components, the primary technical focus is on the overall waterproof sealing of the product. Especially now, smartphones, smartwatches, and smart bracelets have waterproof requirements of being able to withstand 50 meters of water for 30 minutes without ingress, placing even higher demands on component manufacturers.

[0003] Waterproof and acoustically permeable membranes are high-performance materials with a special microporous structure. Due to the complexity and regularity of their microporous structure, they have excellent waterproof and acoustic properties and are widely used in many fields such as electronics, construction, and environmental protection.

[0004] On certain equipment housings, silicone is required as an adhesive layer in contact with the housing. However, since silicone cannot bond tightly to the functional layer (waterproof and acoustically permeable membrane), two layers of adhesive plus a support layer are usually needed to ensure that the adhesive layer and the functional layer do not delaminate. This structure is more complex to manufacture, requiring multiple layers to be laminated and holes to be cut, resulting in higher production costs and making it more difficult to control the product thickness. Furthermore, in traditional waterproof and acoustically permeable membrane structures, the functional layer only has a single waterproof membrane structure, which is prone to damage under external impact and the micropores are easily clogged by grease / dust, affecting the product's acoustic performance. Summary of the Invention

[0005] Therefore, in order to solve the above-mentioned technical problems, this utility model proposes a waterproof and sound-permeable membrane component, including a dustproof mesh 20, a connecting tape 30, a waterproof and sound-permeable membrane 40, and an adhesive layer 50. The dustproof mesh 20 and the waterproof and sound-permeable membrane 40 are bonded together by the connecting tape 30. The waterproof and sound-permeable membrane 40 is bonded to the acoustic product by the adhesive layer 50. A support material layer 10 is bonded to the upper surface of the dustproof mesh 20. The adhesive layer 50 is an AB double-sided adhesive, with silicone on side A and acrylic on side B. The adhesive is bonded to the acoustic product. The acrylic adhesive on side B is bonded to the waterproof and sound-permeable membrane 40. By providing the adhesive layer 50, which is an AB double-sided adhesive, the traditional multi-layer structure can be replaced, reducing the processing steps and better controlling the product thickness. At the same time, the dustproof mesh 20 and the supporting material layer 10 are added to the outside of the waterproof and sound-permeable membrane 40. The dustproof mesh 20 has a good dustproof effect, which can effectively reduce the contamination of the waterproof and sound-permeable membrane 40 by dust, and effectively reduces the impact force when water flows, thus improving the waterproof effect.

[0006] A waterproof and sound-permeable membrane assembly includes a dustproof mesh 20, a connecting tape 30, a waterproof and sound-permeable membrane 40, and an adhesive layer 50. The dustproof mesh 20 and the waterproof and sound-permeable membrane 40 are bonded together by the connecting tape 30. The waterproof and sound-permeable membrane 40 is bonded to an acoustic product by the adhesive layer 50. A support material layer 10 is bonded to the upper surface of the dustproof mesh 20. The adhesive layer 50 is an AB double-sided adhesive, with silicone on side A and acrylic on side B. The silicone on side A is bonded to the acoustic product, and the acrylic on side B is bonded to the waterproof and sound-permeable membrane 40.

[0007] Furthermore, the supporting material layer 10 is a single-sided adhesive and is made of PET.

[0008] Furthermore, the thickness of the support material layer 10 is 0.01-0.2 mm.

[0009] Furthermore, the dustproof mesh 20 is made of PET and has a thickness of 0.01-0.3mm.

[0010] Furthermore, the connecting tape 30 is one of double-sided adhesive, UV release adhesive, or heat release adhesive, and the thickness of the connecting tape 30 is 0.01-0.3mm.

[0011] Furthermore, the waterproof and sound-permeable membrane 40 is an expanded polytetrafluoroethylene membrane with a thickness of 0.01-0.1 mm.

[0012] Furthermore, the thickness of the adhesive layer 50 is 0.05-0.3 mm.

[0013] Furthermore, the supporting material layer 10, the connecting tape 30, and the adhesive layer 50 are all annular in shape, so that the unbonded area in the middle of the dustproof mesh 20 forms a first acoustic channel 60, and the unbonded area in the middle of the waterproof and sound-permeable membrane 40 forms a second acoustic channel 70, and the area of ​​the first acoustic channel 60 is greater than or equal to the area of ​​the second acoustic channel 70.

[0014] The beneficial effects of this utility model are as follows: This utility model proposes a waterproof and sound-permeable membrane component, including a dustproof mesh 20, a connecting tape 30, a waterproof and sound-permeable membrane 40, and an adhesive layer 50. The dustproof mesh 20 and the waterproof and sound-permeable membrane 40 are bonded together by the connecting tape 30. The waterproof and sound-permeable membrane 40 is bonded to an acoustic product by the adhesive layer 50. A support material layer 10 is bonded to the upper surface of the dustproof mesh 20. The adhesive layer 50 is an AB double-sided adhesive, with silicone on side A and acrylic on side B. For bonding with acoustic products, the acrylic adhesive on side B is bonded to the waterproof and sound-permeable membrane 40. An adhesive layer 50, which is an AB double-sided adhesive, replaces the traditional multi-layer structure, reducing processing steps and allowing for better control of product thickness. Simultaneously, a dustproof mesh 20 and a supporting material layer 10 are added outside the waterproof and sound-permeable membrane 40. The dustproof mesh 20 has excellent dustproof properties, effectively reducing dust contamination of the waterproof and sound-permeable membrane 40, and effectively reducing impact force when water flows, thus improving waterproof performance. Attached Figure Description

[0015] Figure 1 is a cross-sectional view of a waterproof membrane sound-permeable component according to the present invention.

[0016] Explanation of key component symbols:

[0017] Support material layer 10, dustproof mesh 20, connecting tape 30, waterproof and sound-permeable membrane 40, adhesive layer 50, first acoustic channel 60, second acoustic channel 70.

[0018] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0019] The following embodiments are described to aid in understanding this application. These embodiments are not, and should not be, construed in any way as limiting the scope of protection of this application.

[0020] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as individual functional units (which may include subunits), but those skilled in the art will recognize that various components or portions thereof may be divided into individual components or may be integrated together (including integrated within a single system or component).

[0021] Furthermore, the connection between components or systems is not intended to be limited to a direct connection; on the contrary, data between these components may be modified, reformatted, or otherwise altered by intermediate components. Additionally, other or fewer connections may be used. It should also be noted that the terms "connection," "link," or "input" should be understood to include direct connections, indirect connections via one or more intermediate devices, and wireless connections.

[0022] Example 1

[0023] Figure 1 shows a cross-sectional view of a waterproof membrane sound-permeable component according to this utility model.

[0024] A waterproof and acoustically permeable membrane assembly includes a dustproof mesh 20, a connecting tape 30, a waterproof and acoustically permeable membrane 40, and an adhesive layer 50. The dustproof mesh 20 and the waterproof and acoustically permeable membrane 40 are bonded together by the connecting tape 30. The waterproof and acoustically permeable membrane 40 is bonded to an acoustic product by the adhesive layer 50. A support material layer 10 is bonded to the upper surface of the dustproof mesh 20, which indirectly makes the contact between the connecting tape 30 and the dustproof mesh 20 tighter, thereby improving the adhesion and better fixing the dustproof mesh 20 to prevent it from falling off or moving. The adhesive layer 50 is an AB double-sided adhesive, with silicone on side A and acrylic on side B. The silicone on side A is bonded to the acoustic product, and the acrylic on side B is bonded to the waterproof and acoustically permeable membrane 40.

[0025] The support material layer 10 is a single-sided adhesive and is made of PET. The thickness of the support material layer 10 is 0.01-0.2 mm.

[0026] The dustproof mesh 20 is made of PET and has a thickness of 0.01-0.3mm.

[0027] The connecting tape 30 is one of double-sided adhesive, UV release adhesive, or heat release adhesive, and the thickness of the connecting tape 30 is 0.01-0.3mm.

[0028] The waterproof and sound-permeable membrane 40 is an expanded polytetrafluoroethylene membrane with a thickness of 0.01-0.1 mm.

[0029] The thickness of the adhesive layer 50 is 0.05-0.3 mm.

[0030] The supporting material layer 10, the connecting tape 30, and the adhesive layer 50 are all annular in shape, so that the dustproof mesh 20 forms a first acoustic channel 60 in the middle without adhesive, and the waterproof and sound-permeable membrane 40 forms a second acoustic channel 70 in the middle without adhesive, and the area of ​​the first acoustic channel 60 is greater than or equal to the area of ​​the second acoustic channel 70.

[0031] The beneficial effects of this utility model are as follows: This utility model proposes a waterproof and sound-permeable membrane component, including a dustproof mesh 20, a connecting tape 30, a waterproof and sound-permeable membrane 40, and an adhesive layer 50. The dustproof mesh 20 and the waterproof and sound-permeable membrane 40 are bonded together by the connecting tape 30. The waterproof and sound-permeable membrane 40 is bonded to an acoustic product by the adhesive layer 50. A support material layer 10 is bonded to the upper surface of the dustproof mesh 20. The adhesive layer 50 is an AB double-sided adhesive, with silicone on side A and acrylic on side B. For bonding with acoustic products, the acrylic adhesive on side B is bonded to the waterproof and sound-permeable membrane 40. An adhesive layer 50, which is an AB double-sided adhesive, replaces the traditional multi-layer structure, reducing processing steps and allowing for better control of product thickness. Simultaneously, a dustproof mesh 20 and a supporting material layer 10 are added outside the waterproof and sound-permeable membrane 40. The dustproof mesh 20 has excellent dustproof properties, effectively reducing dust contamination of the waterproof and sound-permeable membrane 40, and effectively reducing impact force when water flows, thus improving waterproof performance.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A waterproof membrane acoustic transparent assembly, characterized by: The device includes a dustproof mesh (20), a connecting tape (30), a waterproof and sound-permeable membrane (40), and an adhesive layer (50). The dustproof mesh (20) and the waterproof and sound-permeable membrane (40) are bonded together by the connecting tape (30). The waterproof and sound-permeable membrane (40) is bonded to the acoustic product by the adhesive layer (50). A support material layer (10) is bonded to the upper surface of the dustproof mesh (20). The adhesive layer (50) is an AB double-sided adhesive. The A side of the AB double-sided adhesive is silicone, and the B side is acrylic. The silicone on the A side is bonded to the acoustic product, and the acrylic on the B side is bonded to the waterproof and sound-permeable membrane (40).

2. The waterproof membrane acoustic component according to claim 1, characterized in that: The supporting material layer (10) is a single-sided adhesive and is made of PET.

3. The waterproof membrane acoustic component according to claim 2, characterized in that: The thickness of the support material layer (10) is 0.01-0.2 mm.

4. The waterproof membrane acoustic through component of claim 1, wherein: The dustproof mesh (20) is made of PET and has a thickness of 0.01-0.3mm.

5. The waterproof membrane acoustic component according to claim 1, characterized in that: The connecting tape (30) is one of double-sided adhesive, UV detack adhesive, or heat detack adhesive, and the thickness of the connecting tape (30) is 0.01-0.3 mm.

6. The waterproof membrane acoustic through component of claim 1, wherein: The waterproof and sound-permeable membrane (40) is an expanded polytetrafluoroethylene membrane with a thickness of 0.01-0.1 mm.

7. The waterproof membrane acoustic through component of claim 1, wherein: The thickness of the adhesive layer (50) is 0.05-0.3 mm.

8. The waterproof membrane acoustic through component of claim 1, wherein: The supporting material layer (10), the connecting tape (30), and the adhesive layer (50) are all annular in shape, so that the dustproof mesh (20) forms a first acoustic channel (60) in the middle without adhesive area, and the waterproof sound-permeable membrane (40) forms a second acoustic channel (70) in the middle without adhesive area, and the area of ​​the first acoustic channel (60) is greater than or equal to the area of ​​the second acoustic channel (70).

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