Waterproof breathable film assembly and electronic equipment
By introducing a support layer into the waterproof and breathable membrane assembly, the problem of insufficient component strength is solved, achieving high-strength and breathable waterproof performance, suitable for waterproof and breathable protection of electronic devices.
Patent Information
- Application Number
- CN202520038045.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing waterproof and breathable membrane components lack sufficient strength and are prone to wrinkling, resulting in reduced waterproof performance and inability to effectively protect electronic devices.
The structure consists of a first adhesive layer, a waterproof and breathable membrane layer, a second adhesive layer, and a support layer. The support layer is made of non-woven fabric or sound-tuning paper and is connected through breathable pores to enhance the strength of the component and maintain breathability.
It improves the strength of waterproof and breathable membrane components, prevents wrinkling, and maintains good waterproof and breathable performance, making it suitable for the waterproof and breathable needs of electronic devices.
Smart Images
Figure CN223805035U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a waterproof and breathable membrane component and electronic equipment. BACKGROUND
[0002] Electronic equipment internally contains numerous precise electronic components, such as chip, circuit board, battery etc., and these components are very sensitive to moisture, once the water molecules enter the equipment interior, then can influence the normal work of battery equipment, in order to satisfy the waterproof and heat dissipation demand of electronic product, usually waterproof and breathable membrane component is pasted to the place needing waterproof and breathable of electronic product, such as receiving (releasing) sound component, in the related art, waterproof and breathable membrane component lacks enough strength, this leads to waterproof and breathable membrane component wrinkling easily, waterproof and breathable membrane component cannot keep flat and stable, and the waterproof and breathable performance of wrinkled waterproof and breathable membrane component will be poor, and the possibility that electronic equipment appears problems due to poor waterproof performance when applying it in battery equipment is relatively big. SUMMARY
[0003] The primary object of the utility model is to provide a waterproof and breathable membrane component which has high strength and is not prone to wrinkling.
[0004] In order to achieve the above object, the utility model provides a waterproof and breathable membrane component which comprises a first adhesive layer, a waterproof and breathable membrane layer, a second adhesive layer and a support layer arranged in a first direction.
[0005] The first adhesive layer has a first breathable through hole arranged through in the first direction, and the first breathable through hole faces the waterproof and breathable membrane layer in the first direction, and the first adhesive layer is used for connecting the waterproof and breathable membrane layer and the electronic equipment.
[0006] The second adhesive layer has a second breathable through hole arranged through in the first direction, and the second breathable through hole faces the waterproof and breathable membrane layer and the first breathable through hole in the first direction, and the second adhesive layer connects the waterproof and breathable membrane layer and the support layer.
[0007] The support layer is non-woven fabric or tuning paper, and the support layer covers the second breathable through hole.
[0008] In a specific embodiment of the utility model, the size of the support layer in the first direction is 10-100um.
[0009] In a specific embodiment of the utility model, the air permeability of the support layer is greater than 10000ml / cm 2 / min@7Kpa.
[0010] In a specific embodiment of the utility model, the air permeability of the waterproof and breathable membrane layer is greater than 8000ml / cm2 / min@7Kpa, the waterproof and breathable film layer has an average pore size of 1-3um.
[0011] In a specific embodiment of the utility model, the waterproof and breathable film layer has a size of 5-100um along the first direction.
[0012] In a specific embodiment of the utility model, the outer edge of the waterproof and breathable film layer is located between the outer edge and the inner edge of the first adhesive layer and between the outer edge and the inner edge of the second adhesive layer.
[0013] In a specific embodiment of the utility model, the distance between the outer edge of the waterproof and breathable film layer and the inner edge of the first adhesive layer and the second adhesive layer is greater than 0.5mm, and the distance between the outer edge of the waterproof and breathable film layer and the outer edge of the first adhesive layer and the second adhesive layer is less than 0.2mm.
[0014] In a specific embodiment of the utility model, the first adhesive layer has a size of 50-500um along the first direction.
[0015] In a specific embodiment of the utility model, the second adhesive layer has a size of 10-100um along the first direction.
[0016] The application also provides an electronic device comprising the waterproof and breathable film assembly.
[0017] Compared with the prior art, the waterproof and breathable film assembly and the electronic device have the beneficial effects that:
[0018] The waterproof and breathable film assembly comprises a waterproof and breathable film layer, a first adhesive layer, a second adhesive layer and a support layer, the waterproof and breathable film layer is connected to the first adhesive layer and the second adhesive layer, the first adhesive layer is connected to the support layer, the first adhesive layer is provided with a first breathable through hole, and the second adhesive layer is provided with a second breathable through hole. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a structural schematic view of the waterproof and breathable film assembly.
[0020] In the figure, X, first direction; 1, first adhesive layer; 101, first air permeable through hole; 2, waterproof air permeable film layer; 3, second adhesive layer; 301, second air permeable through hole; 4, support layer. DETAILED DESCRIPTION
[0021] The specific embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.
[0022] The utility model provides a kind of electronic equipment, it includes the waterproof air permeable film assembly described below, waterproof air permeable film assembly is connected on electronic equipment by first adhesive layer.
[0023] As Figure 1 As shown in the utility model embodiment, a waterproof air permeable film assembly includes first adhesive layer 1, waterproof air permeable film layer 2, second adhesive layer 3 and support layer 4 arranged in the first direction X, first adhesive layer 1 has first air permeable through hole 101 arranged along the first direction X, first air permeable through hole 101 is opposite waterproof air permeable film layer 2 along the first direction X, first adhesive layer 1 is used to connect waterproof air permeable film layer 2 and electronic equipment;Second adhesive layer 3 has second air permeable through hole 301 arranged along the first direction X, second air permeable through hole 301 is opposite waterproof air permeable film layer 2 and first air permeable through hole 101 along the first direction X, second adhesive layer 3 connects waterproof air permeable film layer 2 and support layer 4;Support layer 4 is non-woven fabric or tuning paper, and support layer 4 covers second air permeable through hole 301.
[0024] Specifically, the waterproof air permeable film assembly of the embodiment is adhered to the electronic equipment by first adhesive layer 1 to protect the place where the electronic product needs waterproof and air permeable, and the waterproof air permeable film layer 2 is connected with the support layer 4 by second adhesive layer 3, first air permeable through hole 101 is arranged on first adhesive layer 1, second air permeable through hole 301 is arranged on second adhesive layer 3, the arrangement of first air permeable through hole 101 and second air permeable through hole 301 ensures that the waterproof air permeable film assembly can be smoothly ventilated, and the arrangement of support layer 4 can make the waterproof air permeable layer assembly have certain strength, so that the waterproof air permeable film assembly is not easy to wrinkle, and the support layer 4 is non-woven fabric or tuning paper, so it can ensure waterproof and air permeable performance while enhancing strength, so that the waterproof air permeable film assembly has the characteristics of relatively high strength and good waterproof and air permeable performance.
[0025] In the embodiment, the size of the support layer 4 along the first direction X is 10-100 um, which is the thickness dimension of the support layer 4, and the support layer 4 meets the size, and has a certain structural strength, so that the waterproof and breathable film assembly is not prone to wrinkling, and if the size of the support layer 4 is less than the above range, the structural strength is low, and the waterproof and breathable film assembly is still likely to have a wrinkling phenomenon, and if the size of the support layer 4 is greater than the above range, then the overall thickness and gas permeability of the waterproof and breathable film assembly will be affected.
[0026] Further, the air permeability of the support layer 4 is greater than 10000 ml / cm 2 / min@7Kpa, thereby ensuring that the waterproof and breathable film assembly has relatively good air permeability.
[0027] As one of the specific implementations of the embodiment, the support layer 4 is a black non-woven fabric formed by adding color masterbatch in the non-woven fabric production process, rather than being made by dyeing later, which can avoid dyeing to block the pores of the non-woven fabric. The black non-woven fabric made in this way will not have the phenomenon of low air permeability or impermeability, and in actual application, a traditional white breathable film can be used to achieve a black appearance effect, and the material versatility is stronger.
[0028] In the embodiment, the air permeability of the waterproof and breathable film layer 2 is greater than 8000 ml / cm 2 / min@7Kpa, and the average pore size of the waterproof and breathable film layer 2 is 1-3 um. Based on this, the waterproof and breathable film layer 2 has relatively good waterproof and breathable performance.
[0029] The size of the waterproof and breathable film layer 2 along the first direction X is 5-100 um, which is the thickness dimension of the waterproof and breathable film layer 2, and the waterproof and breathable film layer 2 meets the thickness dimension, and has relatively good waterproof and breathable performance, and will not make the overall thickness of the waterproof and breathable film assembly too large.
[0030] In the embodiment, the outer edge of the waterproof and breathable film layer 2 is located between the outer edge and the inner edge of the first adhesive layer 1, and is located between the outer edge and the inner edge of the second adhesive layer 3, thereby enabling the waterproof and breathable film assembly to be stably pasted on the electronic device, and enabling the support layer 4 to be stably connected to the waterproof and breathable film layer 2; and the first adhesive layer 1 and the second adhesive layer 3 can cover the outer edge of the waterproof and breathable film layer 2, thereby preventing the waterproof and breathable film assembly from being easily layered when the waterproof and breathable film assembly is peeled off from the electronic device.
[0031] As a specific implementation of the embodiment, the distance between the outer edge of the waterproof and breathable film layer 2 and the inner edge of the first adhesive layer 1 and the second adhesive layer 3 is greater than 0.5mm; the distance between the outer edge of the waterproof and breathable film layer 2 and the outer edge of the first adhesive layer 1 and the second adhesive layer 3 is less than 0.2mm, thereby ensuring that the waterproof and breathable film layer 2 has sufficient adhesive area to ensure the reliability of the structure, and the first adhesive layer 1 and the second adhesive layer 3 can cover the outer edge of the waterproof and breathable film layer 2.
[0032] In the embodiment, the size of the first adhesive layer 1 along the first direction X is 50-500um, which is the thickness size of the first adhesive layer 1, and the first adhesive layer 1 meets the size, has good sealing effect when being attached to the electronic device, thereby making the waterproof and breathable film assembly have good waterproof performance and convenient processing, and if the size of the first adhesive layer 1 is less than the above range, the thickness is too thin, which may cause poor sealing effect when the first adhesive layer 1 is attached to the interface with different roughness, and cannot prevent water; and if the size of the first adhesive layer 1 is greater than the above range, that is, the thickness of the first adhesive layer 1 is too thick, which may cause that the first adhesive layer 1 cannot be processed or waste materials are difficult to be removed.
[0033] Further, the first adhesive layer 1 meets the adhesive requirements of IPX8 waterproof level (1.5 meters for 30 minutes) under 1mm width;
[0034] In the embodiment, the size of the second adhesive layer 3 along the first direction X is 10-100um, which is the thickness size of the second adhesive layer 3, and the second adhesive layer 3 meets the size, which can effectively ensure that the support layer 4 plays a supporting role, if the size of the second adhesive layer 3 is greater than the above range, the thickness of the second adhesive layer 3 is too thick, which may cause that the interval between the support layer and the waterproof and breathable film layer 2 is too large, and the support layer cannot play a supporting role when the waterproof and breathable film layer 2 deforms, if the deformation of the waterproof and breathable film layer 2 exceeds the limit without support, the waterproof and breathable film layer 2 may be broken and cannot prevent water; if the size of the second adhesive layer 3 is less than the above range, the thickness of the second adhesive layer 3 is too thin, which may cause that the second adhesive layer 3 has insufficient adhesion and is difficult to maintain structural integrity.
[0035] Further, the second adhesive layer 3 meets the adhesive requirements of IPX8 waterproof level (1.5 meters for 30 minutes) under 1mm width.
[0036] The above only describes preferred embodiments of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and substitutions can be made without departing from the technical principles of the present application, and these improvements and substitutions should also be considered as the protection scope of the present application.
Claims
1. A waterproof, breathable membrane assembly, characterized in that, The waterproof and breathable film assembly comprises a first adhesive layer (1), a waterproof and breathable film layer (2), a second adhesive layer (3) and a support layer (4) which are stacked along a first direction (X). The first adhesive layer (1) has a first breathable through hole (101) which is arranged through the first adhesive layer (1) along the first direction (X) and faces the waterproof and breathable film layer (2) along the first direction (X), and the first adhesive layer (1) is used for connecting the waterproof and breathable film layer (2) and an electronic device. The second adhesive layer (3) has a second breathable through hole (301) which is arranged through the second adhesive layer (3) along the first direction (X) and faces the waterproof and breathable film layer (2) and the first breathable through hole (101) along the first direction (X), and the second adhesive layer (3) connects the waterproof and breathable film layer (2) and the support layer (4). The support layer (4) is non-woven fabric or music paper, and the support layer (4) covers the second breathable through hole (301).
2. The waterproof, breathable film assembly of claim 1, wherein, The size of the support layer (4) along the first direction (X) is 10-100um.
3. The waterproof, breathable film assembly of claim 1, wherein, The support layer (4) has a gas permeability greater than 10000 ml / cm 2 / min @ 7 KPa.
4. The waterproof, breathable film assembly of claim 1, wherein, The waterproof and breathable film layer (2) has a breathable amount greater than 8000 ml / cm 2 / min@7Kpa, and an average pore size of 1-3 um.
5. The waterproof, breathable film assembly of claim 1, wherein, The size of the waterproof and breathable film layer (2) along the first direction (X) is 5-100um.
6. The waterproof, breathable film assembly of claim 1, wherein, The outer edge of the waterproof and breathable film layer (2) is located between the outer edge and the inner edge of the first adhesive layer (1) and between the outer edge and the inner edge of the second adhesive layer (3).
7. The waterproof, breathable film assembly of claim 6, wherein, The distance between the outer edge of the waterproof and breathable film layer (2) and the inner edge of the first adhesive layer (1) and the second adhesive layer (3) is greater than 0.5mm, and the distance between the outer edge of the waterproof and breathable film layer (2) and the outer edge of the first adhesive layer (1) and the second adhesive layer (3) is less than 0.2mm.
8. The waterproof, breathable film assembly of claim 1, wherein, The size of the first adhesive layer (1) along the first direction (X) is 50-500um.
9. The waterproof, breathable membrane assembly of claim 1, wherein, The size of the second adhesive layer (3) along the first direction (X) is 10-100um.
10. An electronic device, comprising: The waterproof and breathable film assembly comprises a first adhesive layer (1), a waterproof and breathable film layer (2), a second adhesive layer (3) and a support layer (4) which are stacked along a first direction (X).