CN215886897U

CN215886897U - Double-layer waterproof breathable film structure

Info

Publication number: CN215886897U
Application number: CN202122513900.4U
Authority: CN
Inventors: 许建民; 马欣
Original assignee: Shenzhen Ribo Electronic Technology Co ltd; Tianjin Rijin Technology Co ltd
Current assignee: Shenzhen Ribo Electronic Technology Co ltd; Tianjin Rijin Technology Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-02-22
Anticipated expiration: 2031-10-19

Abstract

The utility model provides a double-layer waterproof breathable film structure which comprises a first waterproof film, a second waterproof film and a supporting layer from outside to inside, wherein a middle rubber ring is arranged between the first waterproof film and the second waterproof film, an inner rubber ring is arranged between the second waterproof film and the supporting layer, and a buffer gap is formed by the through holes in the middle parts of the second waterproof film, the supporting layer and the inner rubber ring in a surrounding mode. According to the double-layer waterproof breathable film structure, a rubber ring structure is used between the supporting layer and the waterproof film to replace a traditional hot-pressing composite mode, the inner waterproof film still has good waterproof performance under the condition that the outer waterproof film is damaged, and meanwhile, the ventilation quantity of the film can be preserved to the maximum extent, so that the heat and pressure in an electronic product can be balanced with the outside more quickly, and the electronic product can be protected more reliably.

Description

Double-layer waterproof breathable film structure

Technical Field

The utility model belongs to the field of electronic waterproof accessories, and particularly relates to a double-layer waterproof breathable film structure.

Background

As shown in fig. 4, the traditional double-layer waterproof breathable film structure generally comprises two layers of waterproof films and a supporting layer, wherein the supporting layer and the inner side of the inner waterproof film layer are compounded into a whole by adopting a hot-pressing mode, on one hand, the waterproof films are easily damaged by hot-pressing compounding in the production process, the product quality is affected, the service life is shortened, on the other hand, the waterproof breathable film of the structure is poor in breathability, the breathability is small, the heat and pressure inside the electronic product cannot be balanced with the outside in time, in the factory assembly or consumer use process, the outer waterproof breathable film layer is easily damaged by external impact, the waterproofness of the damaged waterproof breathable film can be remarkably reduced, and the waterproof breathable film cannot be normally used.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a double-layer waterproof breathable film structure, so as to improve the air permeability of the waterproof breathable film and provide reliable protection for electronic products.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a double-deck waterproof ventilated membrane structure, from outer to interior includes first water proof membrane, second water proof membrane and supporting layer, be equipped with the mesojiao encircles between first water proof membrane and the second water proof membrane, be equipped with the rubberizing ring between second water proof membrane and the supporting layer, the through-hole in second water proof membrane, supporting layer and rubberizing ring middle part encloses into the buffering clearance.

Furthermore, the middle glue ring and the inner glue ring are double-sided glue, and the thickness is 0.03-0.3 mm.

Furthermore, the middle rubber ring and the inner rubber ring are formed by spraying or screen printing glue, and the thickness is 0.01-0.3 mm.

Furthermore, the first waterproof membrane and the second waterproof membrane are made of PTFE, PVDF or PI, and the first waterproof membrane and the second waterproof membrane are made of the same or different materials.

Furthermore, the supporting layer is made of non-woven fabrics and is made of PP, PE or PET.

Furthermore, an outer rubber ring is pasted on one side, close to the outer side, of the first waterproof film, and an air inlet hole is formed in the middle of the outer rubber ring.

Compared with the prior art, the double-layer waterproof breathable film structure has the following advantages:

according to the double-layer waterproof breathable film structure, the rubber ring structure is used between the supporting layer and the waterproof film to replace a traditional hot-pressing compounding mode, the damage of a hot-pressing compounding process to the waterproof film can be avoided, the product quality is ensured, the service life is prolonged, meanwhile, under the condition that the outer waterproof film is damaged, the inner waterproof film still has good waterproof performance, meanwhile, the ventilation quantity of the film can be preserved to the maximum extent, the heat and the pressure in the electronic product can be kept balanced with the outside more quickly, and the electronic product can be protected more reliably.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic cross-sectional view of a double-layer waterproof breathable film structure according to an embodiment of the present invention;

FIG. 2 is an exploded view of a double-layer waterproof breathable film structure according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of glue spraying or screen printing according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a double-layer waterproof breathable film in the prior art.

Description of reference numerals:

1. a support layer; 2. an inner rubber ring; 3. a second water-resistant film; 4. a middle rubber ring; 5. an air inlet; 6. an outer rubber ring; 7. a first water-resistant film; 8. and (4) glue.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The utility model changes the connection mode of the traditional waterproof breathable film supporting layer and the waterproof breathable film, bonds the supporting layer and the waterproof film through the rubber ring with a hole in the middle, replaces the traditional hot-pressing composite mode, and effectively improves the air permeability and the protective property of the waterproof breathable film. The double-layer waterproof breathable film structure comprises a first waterproof film 7, a second waterproof film 3 and a supporting layer 1 from outside to inside, wherein a middle rubber ring 4 is arranged between the first waterproof film 7 and the second waterproof film 3, an inner rubber ring 2 is arranged between the second waterproof film 3 and the supporting layer 1, and through holes in the middle parts of the second waterproof film 3, the supporting layer 1 and the inner rubber ring 2 enclose a buffer gap.

Furthermore, the middle adhesive ring 4 and the inner adhesive ring 2 can be made of double-sided adhesive tape, the thickness of the double-sided adhesive tape is 0.03-0.3mm, the viscosity can be guaranteed, the buffering effect can be achieved, and the air holes are reserved in the middle of the double-sided adhesive tape, so that good air permeability can be kept.

Furthermore, the middle rubber ring 4 and the inner rubber ring 2 can be formed by spraying or screen printing glue 8 on the waterproof membrane, the thickness is 0.01-0.3mm, the spraying or printing shape is a circular ring shape, and the middle part is provided with air holes, so that good air permeability can be kept.

Further, the first waterproof membrane 7 and the second waterproof membrane 3 are made of PTFE, PVDF or PI, and the material of the first waterproof membrane 7 is the same as or different from that of the second waterproof membrane 3.

Further, the supporting layer 1 is made of non-woven fabric, and the material is PP, PE or PET.

Furthermore, an outer rubber ring 6 is pasted on the outer surface of the first waterproof membrane 7, and an air inlet hole 5 is formed in the middle of the outer rubber ring 6 and is an air inlet of the whole waterproof breathable membrane structure.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a double-deck waterproof ventilated membrane structure which characterized in that: the waterproof structure comprises a first waterproof membrane, a second waterproof membrane and a supporting layer from outside to inside, wherein a middle rubber ring is arranged between the first waterproof membrane and the second waterproof membrane, an inner rubber ring is arranged between the second waterproof membrane and the supporting layer, and a buffer gap is formed by the through holes in the middle of the second waterproof membrane, the supporting layer and the inner rubber ring in a surrounding mode.

2. The double-layer waterproof breathable film structure of claim 1, wherein: the middle adhesive ring and the inner adhesive ring are double-sided adhesive tapes, and the thickness of the middle adhesive ring and the inner adhesive ring is 0.03-0.3 mm.

3. The double-layer waterproof breathable film structure of claim 1, wherein: the middle rubber ring and the inner rubber ring are formed by spraying or screen printing glue, and the thickness is 0.01-0.3 mm.

4. The double-layer waterproof breathable film structure of claim 1, wherein: the first waterproof membrane and the second waterproof membrane are made of PTFE, PVDF or PI, and the first waterproof membrane and the second waterproof membrane are made of the same or different materials.

5. The double-layer waterproof breathable film structure of claim 1, wherein: the supporting layer is made of non-woven fabric, and the material of the supporting layer is PP, PE or PET.

6. The double-layer waterproof breathable film structure of claim 1, wherein: an outer rubber ring is pasted on one side, close to the outer side, of the first waterproof membrane, and an air inlet hole is formed in the middle of the outer rubber ring.