An ultra-thin conductive silicone rubber electromagnetic shielding film

Abstract

The utility model relates to the technical field of silicone rubber electromagnetic shielding film, provide a kind of ultrathin conductive silicone rubber electromagnetic shielding film, including base layer and protective layer;The side of the base layer is provided with protective layer, the side of the base layer and protective layer is all provided with conductive structure.The utility model is provided with conductive structure, adhesive layer is conductive glue and then tenacity layer is adhered in the side of base layer and protective layer, and make the side of tenacity layer be provided with conductive matrix, and tenacity layer is ultrathin polyimide, and it is convenient to improve the strength of the shielding film, and conductive matrix is carbon fiber, and it is convenient to provide conductive performance, to reach the purpose of the shielding film strength and conductive performance is conveniently improved.

Description

Technical Field

[0001] This utility model relates to the field of silicone rubber electromagnetic shielding film technology, and in particular to an ultra-thin conductive silicone rubber electromagnetic shielding film. Background Technology

[0002] In people's daily lives, electromagnetic shielding films are essential for suppressing electromagnetic interference.

[0003] To address this issue, patent CN207070596U discloses an electromagnetic shielding film. This electromagnetic shielding film includes an electromagnetic shielding layer and an insulating layer covering the surface of the electromagnetic shielding layer; the electromagnetic shielding layer includes a composite metal layer and a first conductive adhesive layer; the upper surface of the composite metal layer is bonded to the insulating layer; and the lower surface of the composite metal layer is bonded to the first conductive adhesive layer. This invention solves the problem of poor conductive shielding performance in the prior art.

[0004] The electromagnetic shielding film mentioned above is difficult to roll up conveniently during use, which may result in messiness during the rolling process, thus limiting its application. Utility Model Content

[0005] The purpose of this invention is to provide an ultra-thin conductive silicone rubber electromagnetic shielding film to solve the problem that existing electromagnetic shielding films are not convenient for quick winding and positioning.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an ultra-thin conductive silicone rubber electromagnetic shielding film, comprising a base layer and a protective layer;

[0007] A protective layer is provided on one side of the base layer, and a conductive structure is provided on one side of both the base layer and the protective layer;

[0008] The conductive structure includes an adhesive layer disposed on one side of the protective layer and the base layer, a toughening layer disposed on one side of the adhesive layer, and a conductive substrate disposed on one side of the toughening layer.

[0009] The bottom end of the base layer is provided with a convergence structure.

[0010] Preferably, the base layer is silicone rubber and the protective layer is ultrathin polyimide.

[0011] Preferably, the adhesive layer is a conductive adhesive.

[0012] Preferably, the toughening layer is a polymer film and the conductive substrate is carbon fiber.

[0013] Preferably, the gathering structure includes an adhesive layer disposed at the bottom of the base layer and a protrusion uniformly fixed at the top of the protective layer. The bottom of the adhesive layer is provided with release paper, and the bottom of the release paper is uniformly provided with reserved grooves.

[0014] Preferably, the raised strips are symmetrically distributed at the top of the protective layer, and the reserved grooves are symmetrically distributed at the bottom of the release paper.

[0015] Preferably, the protrusion is disposed inside the reserved groove, and the protrusion and the reserved groove form an engaging structure.

[0016] The advantages of the ultra-thin conductive silicone rubber electromagnetic shielding film provided by this utility model are as follows:

[0017] By setting a conductive structure, the adhesive layer is a conductive adhesive, which then bonds the tough layer to one side of the base layer and the protective layer, and a conductive substrate is set on one side of the tough layer. The tough layer is an ultra-thin polyimide, which facilitates the improvement of the strength of the shielding film, while the conductive substrate is carbon fiber, which facilitates the provision of conductivity, thereby achieving the purpose of facilitating the improvement of the strength and conductivity of the shielding film.

[0018] With a winding structure, the convex strips are symmetrically distributed at the top of the protective layer and are equal in size to the reserved groove. Thus, during the winding process of the shielding film, the convex strips are placed inside the reserved groove to position the shielding film, thereby achieving the purpose of improving the winding effect. Attached Figure Description

[0019] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a side view of the structure of this utility model;

[0021] Figure 3 This is a front view structural diagram of the present utility model;

[0022] Figure 4 This is a frontal three-dimensional structural diagram of the present invention;

[0023] Figure 5 This is a schematic diagram of the combined three-dimensional structure of this utility model.

[0024] The following are the annotations in the figure: 1. Base layer; 2. Protective layer; 3. Conductive structure; 301. Adhesive layer; 302. Tough layer; 303. Conductive substrate; 4. Bundling structure; 401. Adhesive layer; 402. Raised strip; 403. Release paper; 404. Reserved groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 5 The present invention provides an ultra-thin conductive silicone rubber electromagnetic shielding film, comprising a base layer 1 and a protective layer 2.

[0027] Reference Figure 1 - Figure 3 As shown, a protective layer 2 is provided on one side of the base layer 1. The base layer 1 is silicone rubber, and the protective layer 2 is ultrathin polyimide. A conductive structure 3 is provided on one side of both the base layer 1 and the protective layer 2. The conductive structure 3 includes an adhesive layer 301 provided on one side of the protective layer 2 and the base layer 1. A toughening layer 302 is provided on one side of the adhesive layer 301, and a conductive substrate 303 is provided on one side of the toughening layer 302. The adhesive layer 301 is a conductive adhesive, the toughening layer 302 is a polymer film, and the conductive substrate 303 is carbon fiber.

[0028] In order to provide conductivity during the use of silicone rubber electromagnetic shielding film, a conductive structure 3 is provided, so that a tough layer 302 is bonded between the base layer 1 and the protective layer 2 through an adhesive layer 301. The protective layer 2 is an ultra-thin polyimide, which has wear-resistant and scratch-resistant properties, thereby protecting the surface of the film and increasing the toughness and strength of the film. A conductive substrate 303 is filled between the tough layers 302, and the conductive substrate 303 is carbon fiber, which facilitates the provision of conductivity to the film, thereby greatly increasing the effectiveness of the silicone rubber electromagnetic shielding film.

[0029] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a gathering structure 4 is provided at the bottom end of the base layer 1. The gathering structure 4 includes an adhesive layer 401 provided at the bottom end of the base layer 1 and protrusions 402 uniformly fixed at the top end of the protective layer 2. A release paper 403 is provided at the bottom end of the adhesive layer 401. A reserved groove 404 is uniformly opened at the bottom end of the release paper 403. The protrusions 402 are symmetrically distributed at the top end of the protective layer 2, and the reserved grooves 404 are symmetrically distributed at the bottom end of the release paper 403. The protrusions 402 are provided inside the reserved grooves 404, and the protrusions 402 and the reserved grooves 404 form an interlocking structure.

[0030] In order to facilitate the winding and use of the shielding film, a winding structure 4 is provided. An adhesive layer 401 is provided at the bottom of the base layer 1 to facilitate adhesion, and a release paper 403 is provided at the bottom of the base layer 1 for easy tearing. In order to facilitate winding, protrusions 402 are evenly fixed at the bottom of the protective layer 2, and reserved grooves 404 are evenly opened at the bottom of the release paper 403. In this way, during the winding of the shielding film, the protrusions 402 are placed inside the reserved grooves 404 to play a positioning role. This makes it less likely for the shielding film to become messy during the winding process, thereby improving the winding effect and greatly increasing the functionality of the shielding film.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An ultrathin conductive silicone rubber electromagnetic shielding film, comprising a base layer (1) and a protective layer (2); Its features are: A protective layer (2) is provided on one side of the base layer (1), and a conductive structure (3) is provided on one side of both the base layer (1) and the protective layer (2); The conductive structure (3) includes an adhesive layer (301) disposed on one side of the protective layer (2) and the base layer (1), a tough layer (302) disposed on one side of the adhesive layer (301), and a conductive substrate (303) disposed on one side of the tough layer (302). The bottom end of the base layer (1) is provided with a gathering structure (4).

2. The ultra-thin conductive silicone rubber electromagnetic shielding film according to claim 1, characterized in that: The base layer (1) is silicone rubber, and the protective layer (2) is ultrathin polyimide.

3. The ultra-thin conductive silicone rubber electromagnetic shielding film according to claim 1, characterized in that: The adhesive layer (301) is a conductive adhesive.

4. The ultra-thin conductive silicone rubber electromagnetic shielding film according to claim 1, characterized in that: The toughening layer (302) is a polymer film, and the conductive substrate (303) is carbon fiber.

5. The ultra-thin conductive silicone rubber electromagnetic shielding film according to claim 1, characterized in that: The gathering structure (4) includes an adhesive layer (401) disposed at the bottom of the base layer (1) and a protrusion (402) uniformly fixed at the top of the protective layer (2). The bottom of the adhesive layer (401) is provided with release paper (403), and the bottom of the release paper (403) is uniformly provided with reserved grooves (404).

6. The ultra-thin conductive silicone rubber electromagnetic shielding film according to claim 5, characterized in that: The raised strips (402) are symmetrically distributed at the top of the protective layer (2), and the reserved grooves (404) are symmetrically distributed at the bottom of the release paper (403).

7. The ultra-thin conductive silicone rubber electromagnetic shielding film according to claim 5, characterized in that: The protrusion (402) is disposed inside the reserved groove (404), and the protrusion (402) and the reserved groove (404) form an engaging structure.

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