CN209854043U - Foam rubber component - Google Patents

Abstract

The utility model discloses a foam glue assembly, which includes a foam sheet, the first surface of the foam sheet is covered with an antistatic protective film, and the surface of the antistatic protective film facing away from the foam sheet is self-adhesive and attached to the On the release film, the second side of the foam sheet is covered with double-sided adhesive. The surface of the double-sided adhesive is attached with a protective film covering its main area. The handle film is bonded to the double-sided tape through the adhesive layer, and extends to the outside of the foam sheet. In this solution, by setting an anti-static protective film on one side of the foam, on the one hand, the basic performance of the foam is guaranteed, and it also has the function of electrostatic protection. On the other side of the foam, a handle film extending to the outside of the double-sided adhesive is set It provides an effective working space for the tearing operation, which greatly facilitates the separation of the foam material and the release film. At the same time, the handle film is bonded to the double-sided adhesive layer through the adhesive layer, and the connection is firm. The sheet is guaranteed to be peeled off from the release film.

Description

Foam glue components

technical field

The utility model relates to the field of electronic product materials, in particular to foam rubber components.

Background technique

With the rapid development of the electronics industry, the lightweight and thinning of electronic products such as notebooks, smart phones, and PADs has become a mainstream trend, which makes it imperative to reduce the weight and thickness of various components used in their production.

As a shock-absorbing material, foam is widely used in various electronic products, especially various foam tapes, which are often used to bond two components and achieve shock absorption, dustproof, electrical connection, etc., but The function of a single foam tape is relatively single, and when the foam tape is used, it is often inconvenient to manually separate the foam material from the release film on both sides, and the peeling efficiency is low.

Utility model content

The purpose of this utility model is to provide a foam rubber assembly in order to solve the above-mentioned problems existing in the prior art.

The purpose of this utility model is achieved through the following technical solutions:

The foam glue assembly includes a foam sheet, the first surface of the foam sheet is covered with an antistatic protective film, and the surface of the antistatic protective film facing away from the foam sheet is adhesive and attached On the release film, the second side of the foam sheet is covered with double-sided adhesive, the surface of the double-sided adhesive is attached with a protective film covering its main body area, and the double-sided adhesive is exposed on the protective The outer leakage area outside the film is covered with a handle film, and the handle film is bonded to the double-sided tape through the adhesive layer, and extends to the outside of the foam sheet.

Preferably, in the foam glue assembly, the thickness of the foam sheet is no more than 2mm.

Preferably, in the foam glue assembly, the two sides of the double-sided adhesive have different viscosities, and the side with the larger adhesive glue is bonded to the foam sheet.

Preferably, in the foam glue assembly, the protective film is a double-sided release film, and its peeling force is 1-3g/25mm.

Preferably, in the foam glue assembly, the protective film has a portion extending to the outside of the double-sided adhesive.

Preferably, in the foam glue component, the handle film is a PET film, and its length extending to the outside of the double-sided adhesive tape is not less than 2 cm.

Preferably, in the foam glue assembly, the foam sheet is a rounded rectangle, and the side of the short side of the side of the handle film close to the foam sheet is perpendicular to the long side of the foam sheet , and the distance between the side and the short side of the foam sheet is not less than the rounded corner of the foam sheet.

Preferably, in the foam glue component, an adhesive tape with a color different from that of the handle film is attached to the surface of the foam sheet at the end region of the handle film.

The advantages of the technical solution of the utility model are mainly reflected in:

This scheme is exquisite in design and simple in structure. By setting an anti-static protective film on one side of the foam, on the one hand, the basic performance of the foam is guaranteed, and at the same time, it also has the function of electrostatic protection. The handle film on the outside of the double-sided adhesive tape provides an effective working space for the tear-off operation, which greatly facilitates the separation of the foam material and the release film. At the same time, the handle film is bonded to the double-sided adhesive layer through the adhesive layer. It is firm and provides a guarantee for effectively peeling off the foam sheet from the release film.

This solution effectively realizes the compatibility of ultra-thinness and shock absorption by controlling the thickness of the foam sheet, and is effectively applicable to the development trend of miniaturization of various electronic products.

The shape design of the handle film of this solution effectively avoids the detachment of the handle film due to the influence of external force, which is conducive to improving the stability of the product structure; at the same time, the length design of the handle film further improves the operating space and avoids the The interference between the film and the protective film provides convenience for the tear-off operation.

Description of drawings

Fig. 1 is a side view of the utility model;

Fig. 2 is a top view of the utility model;

Fig. 3 is a top view of a plurality of monomers integrated in a release film of the present invention.

Detailed ways

The objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of the application of the technical solutions of the utility model, and any technical solutions formed by equivalent replacement or equivalent transformation all fall within the protection scope of the utility model.

In the description of the scheme, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", " The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation , are constructed and operated in a specific orientation and therefore cannot be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. Moreover, in the description of the solution, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

The foam rubber assembly disclosed by the utility model is described below in conjunction with the accompanying drawings. As shown in the accompanying drawings 1 and 2, it includes a foam sheet 1, and the foam sheet 1 can be various known feasible Foam materials, such as PU foam, CR foam, etc., are not limited here; the shape of the foam sheet 1 can be designed according to different application scenarios. In a preferred solution, the foam sheet 1 It is a rounded rectangle; and, because it is used in electronic products such as notebooks, tablet computers, and mobile phones, it is required that the thickness of the foam should be as thin as possible on the basis of ensuring effective shock absorption. Preferably, the foam sheet The thickness of the material 1 is not more than 2cm, more preferably not more than 1.8cm, more preferably between 1.3-1.6cm.

As shown in Figure 1, the first side 11 of the foam sheet 1 is covered with an antistatic protective film 2, preferably an acrylic antistatic protective film, and the two sides of the antistatic protective film 2 are self-adhesive. Its shape and size are exactly the same as those of the foam sheet 1, and the antistatic protective film 2 is attached to the release film 3, so that the final product not only has a shock absorption effect, but also has an electrostatic protection function, which can effectively Avoid electrostatic damage to the electronic products used.

As shown in accompanying drawing 1, the second side 12 of described foam sheet 1 is covered with double-sided adhesive tape 4, and the size and shape of described double-sided adhesive 4 are the same as the second side 12 of described foam sheet 1. Consistent, so that when in use, be bonded with other elements by described double-sided adhesive 4; Described double-sided adhesive 4 can be the double-sided adhesive of known various materials, preferably, the double-sided adhesiveness of described double-sided adhesive 4 different, and the larger surface of the viscous glue is bonded to the foam sheet 1, thereby effectively ensuring the firmness of the double-sided adhesive 4 and the foam sheet 1, and, during the use of the product, even if When the product is pasted in the wrong position and needs to be re-pasted, it is also possible to ensure that the double-sided adhesive 4 is peeled off from the component first and not from the foam sheet 1 when the product and the component are peeled off, which can effectively ensure the continued use of the product.

As shown in accompanying drawing 1, accompanying drawing 2, the surface of described double-sided adhesive tape 4 is attached with the protective film 5 that covers its main body area, and described protective film 5 covers except a rounded area of described double-sided adhesive tape 4 In all other areas, at the same time, the protective film 5 is a double-sided release film, and its peeling force is 1-3g/25mm. On the one hand, the protective film 5 can effectively protect the glue surface of the double-sided adhesive tape 4, and on the other hand , a certain peeling force can make the protective film 5 not be accidentally peeled off easily, and can be torn off relatively easily when reused at the same time; Part 51, the protective film 5 can extend to the outside of any side of the double-sided adhesive tape 4, so as to facilitate the tearing operation of the protective film 5 during use.

Further, as shown in accompanying drawings 1 and 2, the leakage area 41 of the double-sided adhesive tape 4 exposed outside the protective film 5 is covered with a handle film 6, and the handle film 6 extends to the foam Outside the sheet 1, the length of the handle film 6 extending to the outside of the foam sheet is not less than 2 cm, more preferably not less than 5 cm. This design is due to the need to wrap the foam sheet with the help of the handle film 6 during use. 1 is separated from the release film 3 for use, and the protective film 5 and the handle film 6 may need to be peeled off step by step during use. The protective film 5 is a release film and is easier to peel off from the double-sided tape 4. The operator may interfere during operation. By designing a longer handle film 6, the protective film 5 may be effectively prevented from being peeled off from the double-sided adhesive 4 during operation, resulting in contamination of the double-sided adhesive 4.

Simultaneously, described handle film 6 can be suitable for any material with certain hardness, preferably described handle film 6 is PET film, because PET film itself does not have peeling force, therefore, its bonding stability with double-sided adhesive tape 4 is relatively poor , it is very easy to peel off the double-sided adhesive tape 4, so that the foam sheet 1 cannot be pulled up from the release film 3 through the handle film 6 during use. Therefore, in order to ensure the stability of use, as shown in Figure 1, the The handle film 6 is bonded to the double-sided tape 4 through the adhesive layer 7, and the adhesive layer 7 is also double-sided tape.

In addition, since the release film, the protective film, and the handle film 6 are all transparent materials in the entire assembly, it is not convenient to identify the handle film intuitively. Therefore, as shown in accompanying drawings 1 and 2, the handle film 6 The end area 62 of the end area 62 facing the surface of the foam sheet 1 is attached with an adhesive tape 8 with a color different from that of the handle film 6, preferably the adhesive tape 8 is blue, and its length and width are about 1 cm, so that it can Effectively provide space for the operation of fingers.

Furthermore, since the foam sheet 1 is a rounded rectangle, and the handle film 6 extends to the outside of the foam sheet 1, if the handle film 6 extends to the area outside the double-sided adhesive tape 4 The width is the same as the length of the leakage area 41 of the double-sided adhesive tape 4, and the joint area between the handle film 6 and the double-sided adhesive tape 4 is easily affected by external force to cause peeling. Therefore, as shown in Figure 2, the handle film 6 The side 61 close to the short side 13 of the foam sheet 1 is perpendicular to the long side 14 of the foam sheet 1, and the distance between the side 61 and the short side 13 of the foam sheet 1 is Not less than the size of the rounded corners of the foam sheet 1 .

And, when processing, as shown in accompanying drawing 3, described foam sheet 1, antistatic protective film 2, double-sided adhesive tape 4, protective film 5, handle film 6 constitute a glue monomer, a plurality of said glue Monomers can be distributed on the same release film 3 .

The utility model still has multiple implementation modes, and all technical solutions formed by equivalent transformation or equivalent transformation all fall within the protection scope of the utility model.

Claims (8)

1. Foam glue assembly, characterized in that it includes a foam sheet (1), the first surface (11) of the foam sheet (1) is covered with an antistatic protective film (2), and the antistatic The surface of the protective film (2) facing away from the foam sheet (1) is adhesive and attached to the release film (3), and the second surface (12) of the foam sheet (1) covers There is a double-sided adhesive (4), the surface of the double-sided adhesive (4) is attached with a protective film (5) covering its main body area, and the double-sided adhesive (4) is exposed outside the protective film (5) The outer leakage area (41) is covered with a handle film (6), the handle film (6) is bonded to the double-sided tape (4) through the adhesive layer (7), and it extends to the foam sheet (1) EXTERNAL. 2. The foam rubber assembly according to claim 1, characterized in that: the thickness of the foam sheet (1) does not exceed 2mm. 3 . The foam glue assembly according to claim 1 , characterized in that: the two sides of the double-sided adhesive ( 4 ) have different viscosities, and the side with the larger adhesive glue is bonded to the foam sheet ( 1 ). 4 . 4. The foam rubber component according to claim 1, characterized in that: the protective film (5) is a double-sided release film, and its peeling force is 1-3g/25mm. 5. The foam rubber assembly according to claim 1, characterized in that: the protective film (5) has a portion extending to the outside of the double-sided adhesive tape (4). 6. The foam rubber component according to claim 1, characterized in that: the handle film (6) is a PET film, and the length extending to the outside of the double-sided adhesive tape is not less than 2cm. 7. The foam rubber assembly according to claim 6, characterized in that: the foam sheet (1) is a rounded rectangle, and the handle film (6) is close to the side of the foam sheet (1) The side (61) of the short side (13) is perpendicular to the long side (14) of the foam sheet (1), and the side (61) and the short side of the foam sheet (1) The distance of (13) is not less than the size of the fillet of the foam sheet (1). 8. The foam rubber component according to any one of claims 1-7, characterized in that: the end area (62) of the handle film (6) is attached to the surface of the foam sheet (1) The color is different from the adhesive tape (8) of the handle film (6).