Omnibearing conductive foam with double-sided conduction function

Abstract

The utility model discloses an omnibearing conductive foam with a double-sided conduction function, which comprises a release layer, a first conductive cloth layer and a conductive foam layer, a first conductive adhesive layer is coated on the lower surface of the first conductive cloth layer, the release layer is compounded below the first conductive adhesive layer, and the conductive foam layer is coated on the lower surface of the first conductive cloth layer. The upper surface of the first conductive cloth layer is compounded with the conductive foam layer through a second conductive adhesive layer, the upper surface of the conductive foam layer is coated to form a third conductive adhesive layer, and a second conductive cloth layer is compounded above the third conductive adhesive layer. The beneficial effects of the utility model are that: not only can the conductive guidance of plane-based conduction be realized, but also the compression elasticity ratio is superior, the elasticity is stable, and the phenomenon that the normal use is influenced due to surface fracture caused by uneven pressure is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive foam production, in particular to an omnidirectional conductive foam with a double-sided conduction function. Background Art

[0002] Conductive foam is a composite conductive cloth on foam. After a series of treatments, it has good surface conductivity and can be easily fixed on the device to be shielded with adhesive tape. On the one hand, it is used to shield the electromagnetic waves generated when the electronic product circuit is working. On the other hand, it can also reduce the impact of external electromagnetic waves on the work of the electronic product itself, and can conduct the static electricity generated by electronic products to the outside world to prevent the accumulation of excessive static electricity.

[0003] With the rapid development of electronic technology, mobile phones, computers, televisions and other electronic products have become necessities of people's lives, and conductive foam is an important accessory, which is usually required to have good conductivity and shielding properties. However, the existing conductive foam mostly adopts a structure in which conductive cloth is compounded on the foam, and release paper is compounded on the conductive cloth through hot melt adhesive. However, such a structure has poor compression elasticity and unstable elasticity during use, and often causes surface fracture due to uneven pressure, which affects its normal use. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an omni-directional conductive foam with a double-sided conductive function, which avoids the phenomenon of surface fractures caused by uneven pressure and affecting its normal use.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A omnidirectional conductive foam with double-sided conduction function, the key of which is: comprising a release layer, a first conductive cloth layer and a conductive foam layer, the first conductive adhesive layer is coated on the lower surface of the first conductive cloth layer, the release layer is compounded below the first conductive adhesive layer, the conductive foam layer is compounded on the upper surface of the first conductive cloth layer through the second conductive adhesive layer, a third conductive adhesive layer is coated on the upper surface of the conductive foam layer, and a second conductive cloth layer is compounded above the third conductive adhesive layer.

[0007] Furthermore, the thickness of the first conductive cloth layer is consistent with that of the second conductive cloth layer, and the thickness ratio of the first conductive cloth layer to the conductive foam layer is 1:10 to 1:20.

[0008] Furthermore, the thickness of the first conductive cloth layer and the second conductive cloth layer is not greater than 0.15 mm.

[0009] Furthermore, the thickness of the conductive foam layer is 1 to 2.5 mm.

[0010] Furthermore, the thicknesses of the first conductive adhesive layer, the second conductive adhesive layer and the third conductive adhesive layer are consistent.

[0011] Furthermore, the thickness of the first conductive adhesive layer, the second conductive adhesive layer and the third conductive adhesive layer is 10-15 μm.

[0012] The remarkable effects of the utility model are:

[0013] 1. By compounding a layer of conductive cloth on the upper and lower sides of the conductive foam layer, it can not only realize the plane-based conductive guidance, but also has an excellent compression elasticity ratio and stable elasticity, and will not affect its normal use due to surface fractures caused by uneven pressure;

[0014] 2. When the product is fully conductive, it has better conductivity than conductive foam with only one layer of conductive cloth;

[0015] 3. Conductive glue is used to compound the release layer, the first conductive fabric layer, the conductive foam layer and the second conductive fabric layer, which simultaneously solves the defect of poor vertical conduction of existing products.

[0016] 4. The utility model controls the thickness ratio of the conductive cloth layer to the conductive foam layer to be 1:10-20. If the thickness of the conductive foam layer is too large, the surface conductive cloth layer will be wrinkled or collapsed during transportation or production, affecting the conductive performance of the product. If the thickness of the conductive foam layer is too small, the compression elasticity ratio cannot meet the requirements, resulting in surface fractures due to uneven pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0018] The specific implementation manner and working principle of the utility model are further described in detail below with reference to the accompanying drawings.

[0019] In the utility model, the conductive foam used is omnidirectional conductive foam, purchased from Shenzhen Zhihengxin Technology Co., Ltd. (3rd Floor, No. 54, Wanfeng Dalangshan 2nd Road, Shajing Street, Bao'an District, Shenzhen), the conductive glue was purchased from Shanghai Huike New Materials Technology Co., Ltd. (No. 155, Dongri Road, Xinnong Town, Jinshan District, Shanghai), the release layer was purchased from Sichuan Yuxi New Materials Co., Ltd. (No. 222, Huancheng East Road, Huangtupo Industrial Park, Longchang County, Sichuan), and the conductive cloth was purchased from Huaian Fuyang Electronic Materials Co., Ltd. (No. 62, Fuzhun Road, Economic Development Zone, Huaian City, Jiangsu Province).

[0020] like Figure 1As shown, an omnidirectional conductive foam with double-sided conduction function includes a release layer 1, a first conductive cloth layer 3 and a conductive foam layer 5. The first conductive adhesive layer 2 is coated on the lower surface of the first conductive cloth layer 3, the release layer 1 is compounded below the first conductive adhesive layer 2, the conductive foam layer 5 is compounded on the upper surface of the first conductive cloth layer 3 through the second conductive adhesive layer 4, the third conductive adhesive layer 6 is coated on the upper surface of the conductive foam layer 5, and the second conductive cloth layer 7 is compounded above the third conductive adhesive layer 6.

[0021] In this example, the thickness of the first conductive cloth layer 3 is consistent with that of the second conductive cloth layer 7 , and the thickness ratio of the first conductive cloth layer 3 to the conductive foam layer 5 is 1:10 to 1:20.

[0022] Specifically, the thickness of the first conductive cloth layer 3 and the second conductive cloth layer 7 is not greater than 0.15 mm; the thickness of the conductive foam layer 5 is 1-2.5 mm.

[0023] Preferably, the first conductive adhesive layer 2, the second conductive adhesive layer 4 and the third conductive adhesive layer 6 have the same thickness, specifically, a thickness of 10-15 μm.

[0024] The conductive foam described in this embodiment, by compounding a first conductive cloth layer 3 and a second conductive cloth layer 7 above and below the conductive foam layer 5, can not only realize plane-based conductive guidance, but also has an excellent compression elasticity ratio and stable elasticity, and will not affect its normal use due to surface fractures caused by uneven pressure; when the product is fully conductive, it has better conductive performance than the conductive foam with only one layer of conductive cloth; the release layer 1, the first conductive cloth layer 3, the conductive foam layer 5 and the second conductive cloth layer 7 are compounded with conductive glue, which simultaneously solves the defect of poor vertical conduction of existing products.

[0025] The technical solution provided by the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An all-round conductive foam with double-sided conduction function, characterized in that: It includes a release layer, a first conductive cloth layer and a conductive foam layer. The first conductive adhesive layer is coated on the lower surface of the first conductive cloth layer, the release layer is compounded below the first conductive adhesive layer, the conductive foam layer is compounded on the upper surface of the first conductive cloth layer through the second conductive adhesive layer, a third conductive adhesive layer is coated on the upper surface of the conductive foam layer, and a second conductive cloth layer is compounded above the third conductive adhesive layer.

2. The omnidirectional conductive foam with double-sided conduction function according to claim 1, characterized in that: The thickness of the first conductive cloth layer is consistent with that of the second conductive cloth layer, and the thickness ratio of the first conductive cloth layer to the conductive foam layer is 1:10 to 1:

20.

3. The omnidirectional conductive foam with double-sided conduction function according to claim 2, characterized in that: The thickness of the first conductive cloth layer and the second conductive cloth layer is no more than 0.15 mm.

4. The omnidirectional conductive foam with double-sided conduction function according to any one of claims 1 to 3, characterized in that: The thickness of the conductive foam layer is 1 to 2.5 mm.

5. The omnidirectional conductive foam with double-sided conduction function according to claim 1, characterized in that: The thicknesses of the first conductive adhesive layer, the second conductive adhesive layer and the third conductive adhesive layer are consistent.

6. The omni-directional conductive foam with double-sided conduction function according to claim 5, characterized in that: The thickness of the first conductive adhesive layer, the second conductive adhesive layer and the third conductive adhesive layer is 10-15 μm.

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