CN211792707U

CN211792707U - Omnibearing conductive sponge

Info

Publication number: CN211792707U
Application number: CN202020797991.1U
Authority: CN
Inventors: 陈洪科
Original assignee: Shenzhen Zhi Shun Technology Co ltd
Current assignee: Shenzhen Zhi Shun Technology Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-10-27
Anticipated expiration: 2030-05-14

Abstract

The utility model relates to an electromagnetic shield material technical field discloses an all-round electrically conductive sponge, including fire-retardant sponge core, conductive metal cladding material, electrically conductive polyester non-woven cloth and from type paper, conductive metal cladding material covers the periphery wall setting in fire-retardant sponge core and electrically conductive polyester non-woven cloth respectively, what electrically conductive polyester non-woven cloth connected gradually end to end wraps up in the periphery wall setting of fire-retardant sponge core, through first electrically conductive adhesive bonding fixed connection between the interior perisporium of electrically conductive polyester non-woven cloth and the periphery wall of fire-retardant sponge core, from type paper bonding fixation in on the lower diapire of electrically conductive polyester non-woven cloth. The technical scheme electric conductive property and shielding effect are better, can exert excellent protective properties like metal, effectively shield external electromagnetic wave's interference and inherent electromagnetic wave radiation, and fire-retardant sponge core can release a large amount of dense cigarettes under the condition of catching fire, play the function of putting out the conflagration, very big improvement the security of electronic product.

Description

Omnibearing conductive sponge

Technical Field

The utility model relates to an electromagnetic shield material technical field, in particular to all-round electrically conductive sponge.

Background

With the application of electronic products in daily life being more and more frequent, but the electronic products have more or less radiation which is harmful to human health, in order to solve the problem, radiation-proof electronic material conductive foam is produced, the conductive foam is formed by wrapping conductive cloth on flame-retardant sponge, and after a series of treatments, the conductive foam has good surface conductivity, can be easily fixed on a device to be shielded by using an adhesive tape, and has different section shapes, installation methods, UL grades and shielding material with shielding effect to be selected.

However, the conductivity and electromagnetic wave shielding effect of the existing conductive foam used in electronic products are not ideal, and there are electromagnetic interference and radiation, which easily affect the performance stability of electronic products and harm human health, and further improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an all-round electrically conductive sponge, it is unsatisfactory to aim at solving current electrically conductive cotton electric conductivity and the electromagnetic wave shielding effect of the electrically conductive bubble that is used for electronic product, influences electronic product performance stability and endangers the technical problem of health easily.

In order to realize the above purpose, the utility model provides an all-round electrically conductive sponge, including fire-retardant sponge core, conductive metal coating, electrically conductive polyester non-woven fabric and from type paper, conductive metal coating cover respectively in the periphery wall setting of fire-retardant sponge core and electrically conductive polyester non-woven fabric, wrap up that electrically conductive polyester non-woven fabric end to end connected gradually in the periphery wall setting of fire-retardant sponge core, just the internal perisporium of electrically conductive polyester non-woven fabric all with through first conductivity adhesive bonding fixed connection between the periphery wall of fire-retardant sponge core, from type paper through second conductivity adhesive bonding fixed in on the lower diapire of electrically conductive polyester non-woven fabric.

Furthermore, the flame-retardant sponge core is formed by foaming a high-molecular polyurethane composite material.

Further, electrically conductive metallic coating includes first metallic nickel cladding material, metallic copper cladding material and second metallic nickel cladding material, first metallic nickel cladding material cover respectively in fire-retardant sponge core and electrically conductive polyester non-woven fabric's periphery wall sets up, metallic copper cladding material cover respectively in the periphery wall setting of first metallic nickel cladding material, second metallic nickel cladding material cover respectively in the periphery wall setting of metallic copper cladding material.

Further, the total thickness of the conductive metal plating layer ranges from 0.02mm to 0.05 mm.

Furthermore, the conductive polyester non-woven fabric comprises a polyester layer and a conductive fiber layer, and the conductive fiber layer is covered above the polyester layer.

Further, the thickness range of the conductive polyester non-woven fabric is 0.03mm to 0.08 mm.

Further, the thickness range of the flame-retardant sponge core is 0.3 mm-50 mm.

Further, the first conductive adhesive is a flame-retardant conductive hot melt adhesive.

Further, the second conductive adhesive is acrylic conductive adhesive.

Adopt the technical scheme of the utility model, following beneficial effect has: the technical proposal of the utility model adopts polyurethane as the sponge core, has excellent elasticity and fire resistance, and carries out electroplating metal layer on the surfaces of the sponge core and the conductive polyester non-woven fabric by electroplating, thereby not only ensuring good conductivity and electromagnetic shielding performance, but also increasing the corrosion resistance of the flame-retardant sponge core by the outmost nickel layer, and then wrapping the conductive polyester non-woven fabric around the flame-retardant sponge core, thereby achieving the effect of all-round conduction, and having three-dimensional shielding effect, better shielding effect, high vertical horizontal conductivity, and the like excellent protective performance of metal, can effectively shield the interference of external electromagnetic waves and the internal electromagnetic wave radiation, reduce the damage of the electromagnetic wave radiation to human body, maintain the health of human body, and the flame-retardant sponge core can release a large amount of dense smoke under the condition of firing, play the function of putting out fire, the security of very big improvement electronic product, and sponge elasticity variation is great, has fine shockproof effect, has good pliability and bending durability, and surfacing, easy processing dashes the type or is used for the parcel, so is fit for the limited occasion of some capacity and closure pressure and uses very much, can fully satisfy high-tech enterprises such as photoelectron, microelectronics, aviation, aerospace, communication, military affairs, chemistry and chemical industry to the demand of novel antistatic material, the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of an omnidirectional conductive sponge according to an embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of an omnidirectional conductive sponge according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a conductive polyester nonwoven fabric of an omnidirectional conductive sponge according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a conductive metal plating layer of an omnidirectional conductive sponge according to an embodiment of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an all-round electrically conductive sponge.

As shown in fig. 1 to 4, in an embodiment of the present invention, the omnibearing conductive sponge includes a flame-retardant sponge core 100, a conductive metal plating layer 300, a conductive polyester non-woven fabric 200 and a release paper 400, the conductive metal plating layer 300 covers the peripheral walls of the flame-retardant sponge core 100 and the conductive polyester non-woven fabric 200 respectively, the conductive polyester non-woven fabric 200 is wrapped around the peripheral wall of the flame-retardant sponge core 100, the inner peripheral wall of the conductive polyester non-woven fabric 200 is fixedly connected to the peripheral wall of the flame-retardant sponge core 100 through a first conductive adhesive (not shown), and the release paper 400 is fixedly bonded to the lower bottom wall of the conductive polyester non-woven fabric 200 through a second conductive adhesive 500.

Specifically, the flame-retardant sponge core 100 is formed by foaming a high-molecular polyurethane composite material, so that the foamed pores of the sponge core are uniform, soft and elastic, and have strong corrosion resistance, the foamed sponge has large elastic variation, a good shockproof effect, good flexibility and bending durability, and is easy to process and punch or used for wrapping, so that the flame-retardant sponge core is very suitable for being used in occasions with limited capacity and closing pressure, contains non-flammable substances, and reduces the possibility of spontaneous combustion and ignition of electronic products.

Specifically, electrically conductive metal coating 300 includes first metal nickel plating layer 301, metal copper plating layer 302 and second metal nickel plating layer 303, first metal nickel plating layer 301 cover respectively the periphery wall setting of fire-retardant sponge core 100 and electrically conductive polyester non-woven fabric 200, metal copper plating layer 302 cover the periphery wall setting of first metal nickel plating layer 301, second metal nickel plating layer 303 cover in the periphery wall setting of metal copper plating layer 302, the combination of copper and nickel provides splendid electric conductivity and good electromagnetic shield effect, and the shielding scope is at 100 k-3 GHz.

Specifically, the conductive polyester non-woven fabric 200 is made of a very light material by vacuum plating a conductive metal plating substance, has good permanent conductivity, has low surface impedance capability, and has no dependence on environmental humidity.

Specifically, the total thickness of the conductive metal plating layer 300 ranges from 0.02mm to 0.05 mm.

Specifically, the conductive polyester non-woven fabric 200 comprises a polyester layer 201 and a conductive fiber layer 202, the conductive fiber layer 202 is arranged above the polyester layer 201 in a covering mode, the conductive fiber layer is carbonized or doped to mix carbon black and fiber substances, the carbon black is continuously combined in fibers to endow the fiber layer with conductivity, the polyester is easy to generate static electricity, the fabric can have conductivity by adding the conductive fibers, the static electricity is released by the conductive fibers through conductive wires, so that the static electricity cannot be generated, and in the industries of electronics, instruments and the like, damage and aging of electronic components caused by the static electricity can be prevented; the product can prevent burning and explosion caused by static electricity in petrochemical industry, has strong flexibility and metal binding force, good conductivity and good electromagnetic wave shielding effect, and can be processed into any shape without affecting the function.

Specifically, the thickness of the conductive polyester non-woven fabric 200 ranges from 0.03mm to 0.08 mm.

Specifically, the thickness of the flame-retardant sponge core 100 ranges from 0.3mm to 50 mm.

Specifically, the first conductive adhesive is a flame-retardant conductive hot melt adhesive.

Specifically, the second conductive adhesive 500 is an acryl conductive paste.

Specifically, the utility model adopts polyurethane as the sponge core, has excellent elasticity and fire resistance, and carries out the metal layer electroplating on the surfaces of the sponge core and the conductive polyester non-woven fabric in an electroplating way, thereby not only ensuring good conductivity and electromagnetic shielding performance, but also increasing the corrosion resistance of the flame-retardant sponge core through the outmost nickel layer, and then achieving the effect of all-round conductivity by wrapping the conductive polyester non-woven fabric around the flame-retardant sponge core, and having the three-dimensional shielding effect, better shielding effect, high vertical horizontal conductivity, and the like excellent protective performance of metal, and can effectively shield the interference of external electromagnetic waves and the internal electromagnetic wave radiation, reduce the damage of the electromagnetic wave radiation to the human body, maintain the health of the human body, and the flame-retardant sponge core can release a large amount of dense smoke under the condition of catching fire, and play the role of putting out fire, the security of very big improvement electronic product, and sponge elasticity variation is great, has fine shockproof effect, has good pliability and bending durability, and surfacing, easy processing dashes the type or is used for the parcel, so is fit for the limited occasion of some capacity and closure pressure and uses very much, can fully satisfy high-tech enterprises such as photoelectron, microelectronics, aviation, aerospace, communication, military affairs, chemistry and chemical industry to the demand of novel antistatic material, the practicality is strong.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The utility model provides an all-round electrically conductive sponge, its characterized in that, includes fire-retardant sponge core, conductive metal coating, electrically conductive polyester non-woven cloth and leaves type paper, electrically conductive metal coating cover respectively in the periphery wall setting of fire-retardant sponge core and electrically conductive polyester non-woven cloth, electrically conductive polyester non-woven cloth end to end connect gradually wrap up in the periphery wall setting of fire-retardant sponge core, just the interior perisporium of electrically conductive polyester non-woven cloth all with bond fixed connection through first electrically conductive adhesive between the periphery wall of fire-retardant sponge core, it is fixed in through the bonding of second electrically conductive adhesive to leave type paper on the lower diapire of electrically conductive polyester non-woven cloth.

2. The all-round conductive sponge according to claim 1, wherein the flame-retardant sponge core is formed by foaming a polymer polyurethane composite material.

3. The all-round electrically conductive sponge of claim 1, wherein the electrically conductive metal coating includes a first metal nickel coating, a metal copper coating and a second metal nickel coating, the first metal nickel coating covers the periphery wall setting of the flame-retardant sponge core and the electrically conductive polyester non-woven fabric respectively, the metal copper coating covers the periphery wall setting of the first metal nickel coating respectively, and the second metal nickel coating covers the periphery wall setting of the metal copper coating respectively.

4. The all-round conductive sponge according to claim 1, wherein the total thickness of the conductive metal plating layer is in the range of 0.02mm to 0.05 mm.

5. The omnibearing conductive sponge according to claim 1, wherein the conductive polyester non-woven fabric comprises a polyester layer and a conductive fiber layer, and the conductive fiber layer is arranged to cover the polyester layer.

6. The all-round conductive sponge according to claim 1, wherein the thickness of the conductive polyester non-woven fabric is in the range of 0.03mm to 0.08 mm.

7. The all-round conductive sponge according to claim 1, wherein the thickness of the flame-retardant sponge core is in the range of 0.3mm to 50 mm.

8. The all-round conductive sponge according to claim 1, wherein said first conductive adhesive is a flame retardant conductive hot melt adhesive.

9. The all-round conductive sponge according to claim 1, wherein said second conductive adhesive is an acrylic conductive adhesive.