Antioxidant local conductive buffer foam and application thereof

Abstract

The invention discloses anti-oxidation local conductive buffer foam and application thereof.The anti-oxidation local conductive buffer foam is internally provided with polyurethane foam, the polyurethane foam is wrapped with conductive cloth, the outer side of the conductive cloth is locally provided with Mylar tape used for locally shielding the conductive cloth, and only the hollow area exposes the conductive cloth; a conductive double-faced adhesive tape is arranged on the outer side of the conductive cloth. The polyurethane foam is arranged in the antioxidant local conductive buffer foam product, the damping and buffering functions are provided for the product, the polyurethane foam is wrapped with a circle of conductive cloth, the outer side of the conductive cloth is locally provided with a mylar tape in a specific shape, local shielding can be formed on the conductive cloth, the conductive cloth is exposed out of only a hollow area, and the product is not prone to deformation. The outer side of the conductive cloth is further provided with the conductive double-faced adhesive tape, the bonding function and the conductive function can be provided at the same time, and the conductive cloth is suitable for a notebook computer mainboard and can provide multiple functions of oxidation resistance, local conduction, damping, buffering and the like.

Description

Technical Field

[0001] The invention belongs to the field of computer-aided technology, and in particular relates to an anti-oxidation local conductive buffer foam and an application thereof. Background Art

[0002] With the rapid development of the information age, laptop computers have been widely used, bringing great convenience to people's life, study and work. In the manufacturing process of laptop motherboards, conductive foam is usually required to be mounted. However, traditional conductive foam is omnidirectional and cannot achieve local conductivity, which limits its further application and development in electronic devices. Summary of the invention

[0003] In order to solve the technical problems existing in the prior art, the purpose of the present invention is to provide an anti-oxidation partially conductive buffer foam and its application.

[0004] In order to achieve the above purpose and the above technical effect, the technical solution adopted by the present invention is:

[0005] An antioxidant partially conductive buffer foam, the interior of the antioxidant partially conductive buffer foam is polyurethane foam, the outside of the polyurethane foam is wrapped with conductive cloth, the outside of the conductive cloth is partially provided with Mylar tape for partially shielding the conductive cloth, and only the conductive cloth is exposed in the hollow area, and the outside of the conductive cloth is also provided with conductive double-sided tape.

[0006] Furthermore, the density of the polyurethane foam is 50±5Kg / m 3 , the surface rigidity is 90±5° and the thickness is 5.32±0.6mm.

[0007] Furthermore, the tensile strength of the polyurethane foam is ≥0.085Mpa, the breaking load is ≥35N, the breaking elongation is ≥130%, the indentation load deflection is 25% ≥80N, the indentation load deflection is 40% ≥100N, the indentation load deflection is 65% ≥150N, and the permanent compression deformation rate is ≤8%.

[0008] Furthermore, the conductive fabric is a conductive fabric with hot-melt adhesive on one side.

[0009] Furthermore, a layer of black copper-nickel conductive coating is provided on the surface of the conductive cloth.

[0010] Furthermore, the thickness of the conductive cloth is 0.05±0.015 mm, the surface resistivity is <0.07Ω / sq, and the planar on-resistance is <0.1Ω.

[0011] Furthermore, the thickness of the Mylar tape is 0.0125-0.02 μm, and the adhesive force is >500 g / 25 mm.

[0012] Furthermore, the thickness of the conductive double-sided adhesive is 0.05±0.005 mm, the 180-degree peeling force is >1300 g / 25 mm, and the vertical conduction resistance is <0.05 Ω.

[0013] The invention also discloses the application of the above-mentioned anti-oxidation local conductive buffer foam in a notebook computer mainboard.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The invention discloses an antioxidant local conductive buffer foam and an application thereof. The interior of the antioxidant local conductive buffer foam product is polyurethane foam, which provides a shock-absorbing and buffering function for the product. A circle of conductive cloth is wrapped around the outside of the polyurethane foam, and a Mylar tape of a specific shape is partially arranged on the outside of the conductive cloth to form a local shielding for the conductive cloth. Only the conductive cloth is exposed in a hollow area, so that the product forms a local conduction function, and the rest of the part is insulated, so that the product will not be affected by unnecessary electromagnetic interference. A conductive double-sided adhesive is also arranged on the outside of the conductive cloth to provide bonding and conductive functions at the same time. The product is suitable for a notebook computer motherboard, can provide multiple functions such as antioxidant, local conductivity, shock absorption, buffering, shielding, etc., has a simple overall structure, low production cost, and has great promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 A partial enlarged schematic diagram in the middle. DETAILED DESCRIPTION

[0018] The present invention is described in detail below so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0019] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be given later.

[0020] like Figure 1-2 As shown, an anti-oxidation partially conductive buffer foam is used in a notebook computer motherboard and can provide multiple functions such as anti-oxidation, partial conductivity, shock absorption, and buffering.

[0021] The antioxidant local conductive buffer foam provided by the present invention has a polyurethane foam 1 inside the product structure, which provides a shock-absorbing and buffering function for the product. A circle of conductive cloth 2 is wrapped around the outside of the polyurethane foam 1. The conductive cloth 2 is a single-sided conductive cloth with hot-melt adhesive, which is convenient for bonding the polyurethane foam 1 and the conductive cloth 2 together. A Mylar tape 3 of a specific shape is partially arranged on the outside of the conductive cloth 2 to form a local shielding for the conductive cloth 2. Only the conductive cloth 2 is exposed in the hollow area, so that the product forms a local conduction function, and the rest of the part is insulated, so that the product will not be affected by unnecessary electromagnetic interference. A conductive double-sided tape 4 is also arranged on the outside of the conductive cloth 2, which can provide bonding and conductive functions at the same time, and is convenient to use.

[0022] The polyurethane foam 1 of the present invention has a model of B380 and a density of 50±5 Kg / m 3 , surface rigidity is 90±5°, tensile strength ≥0.085Mpa, breaking load ≥35N, breaking elongation ≥130%, indentation load deflection 25% ≥80N, indentation load deflection 40% ≥100N, indentation load deflection 65% ≥150N, permanent compression deformation rate ≤8%, thickness is 5.32±0.6mm.

[0023] The conductive cloth 2 of the present invention has a black copper-nickel conductive coating on its surface, which can effectively block air and prevent oxidation of the inner metal fiber braided layer. The conductive cloth 2 is PS-1394, with a thickness of 0.05±0.015mm, a soft texture, and is easy to bend when wrapped. The surface resistivity is <0.07Ω / sq, and the plane on-resistance is <0.1Ω.

[0024] The model of the Mylar tape 3 of the present invention is FTBFAP-15, which is a matte black acrylic tape with PET as the base material and a single-sided matte black color. The thickness is 0.0125-0.02 μm, the adhesive force is greater than 500 g / 25 mm, and the adhesive performance is good.

[0025] The conductive double-sided adhesive 4 of the present invention has a model of TT219, a thickness of 0.05±0.005 mm, a 180-degree peeling force of >1300 g / 25 mm, a vertical conduction resistance of <0.05 Ω, and good bonding and conductive properties.

[0026] Example 1

[0027] like Figure 1-2 As shown, an anti-oxidation partially conductive buffer foam is used in a notebook computer motherboard and can provide multiple functions such as anti-oxidation, partial conductivity, shock absorption, and buffering.

[0028] The antioxidant local conductive buffer foam provided in this embodiment has a polyurethane foam 1 inside the product structure, which provides a shock-absorbing and buffering function for the product. A circle of conductive cloth 2 is wrapped around the outside of the polyurethane foam 1. The conductive cloth 2 is a single-sided conductive cloth with hot-melt adhesive, which is convenient for bonding the polyurethane foam 1 and the conductive cloth 2 together. A Mylar tape 3 of a specific shape is partially provided on the outside of the conductive cloth 2 to form a local shielding for the conductive cloth 2. Only the conductive cloth 2 is exposed in the hollow area, so that the product forms a local conduction function, and the rest of the part is insulated, so that the product will not be affected by unnecessary electromagnetic interference. A conductive double-sided tape 4 is also provided on the outside of the conductive cloth 2, which can provide bonding and conductive functions at the same time, and is convenient to use.

[0029] The model of polyurethane foam 1 is B380, with a density of 50Kg / m 3 , surface rigidity is 90°, tensile strength is 0.09Mpa, breaking load is 40N, breaking elongation is 145%, indentation load deflection 25%: 90N, indentation load deflection 40%: 110N, indentation load deflection 65%: 160N, permanent compression deformation rate is 6%, and the thickness is 5.32mm.

[0030] The surface of the conductive cloth 2 has a layer of black copper-nickel conductive coating, which can effectively block air and prevent oxidation of the inner metal fiber braided layer. The model of the conductive cloth 2 is PS-1394, with a thickness of 0.05mm, soft texture, easy to bend when wrapping, surface resistivity: 0.04Ω / sq, plane on-resistance 0.07Ω.

[0031] The model of Mylar tape 3 is FTBFAP-15, which is a single-sided matte black acrylic tape with PET as the base material, a thickness of 0.0125 μm, an adhesive force of 700 g / 25 mm, and good bonding performance.

[0032] The model of the conductive double-sided adhesive 4 is TT219, with a thickness of 0.05mm, a 180-degree peeling force of 1600g / 25mm, a vertical on-resistance of 0.01Ω, and good bonding and conductive properties.

[0033] Parts or structures not specifically described in the present invention may adopt existing technologies or existing products and will not be described in detail here.

[0034] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An anti-oxidation partially conductive buffer foam, characterized in that: The interior of the anti-oxidation partially conductive buffer foam is polyurethane foam, the outside of the polyurethane foam is wrapped with conductive cloth, and Mylar tape is partially provided on the outside of the conductive cloth to partially shield the conductive cloth, with only the conductive cloth exposed in the hollow area, and conductive double-sided tape is also provided on the outside of the conductive cloth.

2. The anti-oxidation partially conductive buffer foam according to claim 1, characterized in that: The density of the polyurethane foam is 50±5Kg / m 3 , the surface rigidity is 90±5° and the thickness is 5.32±0.6mm.

3. The anti-oxidation partially conductive buffer foam according to claim 1, characterized in that: The polyurethane foam has a tensile strength of ≥0.085Mpa, a breaking load of ≥35N, an elongation at break of ≥130%, an indentation load deflection of 25% ≥80N, an indentation load deflection of 40% ≥100N, an indentation load deflection of 65% ≥150N, and a permanent compression deformation rate of ≤8%.

4. The anti-oxidation partially conductive buffer foam according to claim 1, characterized in that: The conductive fabric is a conductive fabric with hot melt adhesive on one side.

5. The anti-oxidation partially conductive buffer foam according to claim 1, characterized in that: A layer of black copper-nickel conductive coating is provided on the surface of the conductive cloth.

6. The anti-oxidation partially conductive buffer foam according to claim 1, characterized in that: The thickness of the conductive cloth is 0.05±0.015 mm, the surface resistivity is <0.07Ω / sq, and the plane on-resistance is <0.1Ω.

7. The anti-oxidation partially conductive buffer foam according to claim 1, characterized in that: The thickness of the Mylar tape is 0.0125-0.02 μm, and the adhesive force is greater than 500 g / 25 mm.

8. The anti-oxidation partially conductive buffer foam according to claim 1, characterized in that: The thickness of the conductive double-sided adhesive is 0.05±0.005mm, the 180-degree peeling force is >1300g / 25mm, and the vertical conduction resistance is <0.05Ω.

9. Use of the antioxidant partially conductive buffer foam described in any one of claims 1 to 8 in a notebook computer motherboard.

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