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CN-224212602-U - Copper foil graphite composite adhesive tape with low-frequency shielding and high heat conduction

CN224212602UCN 224212602 UCN224212602 UCN 224212602UCN-224212602-U

Abstract

The utility model discloses a low-frequency shielding high-heat-conductivity copper foil graphite composite adhesive tape which comprises a nano carbon layer, a copper foil layer arranged on the lower end face of the nano carbon layer, an iron-nickel layer arranged on the lower end face of the copper foil layer in an electroplating manner, a graphite layer, an edge-wrapping layer for wrapping graphite, a polyester film layer arranged on the lower end face of the edge-wrapping layer and check glue arranged on the lower end face of the polyester film layer, wherein the lower end face of the iron-nickel layer is connected with the upper end face of the edge-wrapping layer. The low-frequency electromagnetic shielding device has the advantages that the nano carbon layer and the graphite layer are respectively arranged on two sides of the iron-nickel layer to serve as main heat conducting layers, heat is conveniently conducted out of a product along the adhesive tape, the iron-nickel layer serves as an electromagnetic shielding layer to shield low-frequency electromagnetic waves lower than 1MHz, meanwhile, the iron-nickel layer has heat conducting function, and the copper foil layer serves as electromagnetic waves higher than 1MHz to shield the electromagnetic waves and has heat conducting function. The wrapping layer is utilized to wrap the graphite, so that the graphite powder is effectively prevented from falling off.

Inventors

  • Ma Tengjie
  • WU NANA

Assignees

  • 昆山汉品电子股份有限公司

Dates

Publication Date
20260508
Application Date
20250529

Claims (7)

  1. 1. The low-frequency shielding high-heat-conductivity copper foil graphite composite adhesive tape is characterized by comprising a nano carbon layer (1), a copper foil layer (2) arranged on the lower end face of the nano carbon layer (1), an iron-nickel layer (3) arranged on the lower end face of the copper foil layer (2) in an electroplating manner, a graphite layer (4), an edge-wrapping layer for wrapping the graphite layer (4), a polyester film layer (5) arranged on the lower end face of the edge-wrapping layer and a check adhesive (6) arranged on the lower end face of the polyester film layer (5), wherein the lower end face of the iron-nickel layer (3) is connected with the upper end face of the edge-wrapping layer.
  2. 2. The low-frequency shielding high-heat-conductivity copper foil graphite composite adhesive tape of claim 1, wherein the edge wrapping layer comprises a first adhesive layer (7) arranged on the surface of the upper end face of the graphite layer (4) and a second adhesive layer (8) arranged on the lower end face and the side face of the graphite layer (4), the graphite layer (4) is sealed by the first adhesive layer (7) and the second adhesive layer (8), the polyester film layer (5) is adhered to the lower end face of the second adhesive layer (8), and the first adhesive layer (7) and the second adhesive layer (8) are heat-conductivity acrylic adhesive layers.
  3. 3. The low-frequency shielding high-heat-conductivity copper foil graphite composite adhesive tape according to claim 1, wherein the thickness of the polyester film layer (5) is 0.01mm.
  4. 4. The low-frequency shielding high-heat-conductivity copper foil graphite composite adhesive tape according to claim 1, wherein the thickness range of the graphite layer (4) is 0.025 mm-0.04 mm.
  5. 5. The low-frequency shielding high-heat-conductivity copper foil graphite composite adhesive tape according to claim 1, wherein the thickness range of the copper foil layer (2) is 0.03-0.06 mm.
  6. 6. The low-frequency shielding high-heat-conductivity copper foil graphite composite adhesive tape according to claim 1, wherein the corrugated adhesive (6) is attached to a product.
  7. 7. The low-frequency shielding high-heat-conductivity copper foil graphite composite adhesive tape according to claim 1, wherein the thickness of the nano carbon layer (1) is 0.04-0.06 mm.

Description

Copper foil graphite composite adhesive tape with low-frequency shielding and high heat conduction Technical Field The utility model relates to the field of adhesive tapes, in particular to a copper foil graphite composite adhesive tape with low-frequency shielding and high heat conductivity. Background With the progress and development of current technology, in the fields of LED lighting, electronic equipment, communication equipment, automobiles, medical equipment and the like, a tape with high heat conducting performance is needed, which can conduct heat rapidly and effectively, improve the safety and reliability of products, and a tape with low frequency shielding is needed to avoid that electromagnetic radiation generated by the equipment may have negative influence on the surrounding environment and human health. However, the adhesive tape with heat conducting performance and low-frequency shielding effect in the market at present adopts a graphite coating as a heat dissipation layer, the preparation cost of the graphite coating is high, and the adhesive tape is only provided with a main heat dissipation coating with heat dissipation effect on one side of the shielding layer, so that the effect of heat conducted from a product along the adhesive tape has room for improvement. In Chinese patent publication No. CN209652218U, for example, a nickel-plated copper foil shielding tape is disclosed, which comprises a copper foil layer, a nickel plating layer formed on one surface of the copper foil layer through a magnetron sputtering coating process, and an electric conduction and heat conduction adhesive layer coated on the other surface of the copper foil layer, wherein a release film layer is adhered to one surface of the electric conduction and heat conduction adhesive layer opposite to the copper foil layer, a PET layer is adhered to one surface of the nickel plating layer opposite to the copper foil layer through an adhesive layer, a heat dissipation coating and a gloss oil layer are sequentially coated on the other surface of the PET layer from inside to outside, and the heat dissipation coating is a carbon nanotube heat dissipation coating or a graphene heat dissipation coating. The nickel-plated copper foil shielding tape forms a heat dissipation coating in a coating mode, the processing cost is high, and the whole tape is provided with the heat dissipation coating on one side of the nickel coating, so that the whole tape does not achieve the optimal heat dissipation effect. In view of this, it is necessary to provide a copper foil graphite composite tape with low frequency shielding and high thermal conductivity. Disclosure of Invention The low-frequency shielding high-heat-conductivity copper foil graphite composite adhesive tape provided by the utility model effectively solves the problems that the existing heat-dissipation shielding adhesive tape is high in preparation cost and the heat-dissipation effect is not optimal. The technical scheme adopted by the utility model is as follows: The utility model provides a copper foil graphite composite tape of high heat conduction of low frequency shielding, includes nano carbon layer, sets up the copper foil layer of terminal surface under the nano carbon layer, electroplates iron nickel layer, the graphite layer of setting up terminal surface under the copper foil layer, carries out the bordure layer of borduring to graphite, sets up polyester film layer and the check glue of setting up terminal surface under the polyester film layer under the bordure layer terminal surface, terminal surface is connected with the bordure layer up end under the iron nickel layer. The wrapping layer comprises a first adhesive layer arranged on the surface of the upper end face of the graphite layer and a second adhesive layer arranged on the lower end face and the side face of the graphite layer, the first adhesive layer and the second adhesive layer enable the graphite layer to be sealed, and the polyester film layer is bonded with the second adhesive layer. The first adhesive layer and the second adhesive layer are both heat-conducting acrylic adhesive layers. Further, the thickness of the polyester film layer is 0.01mm. Further, the thickness of the graphite layer ranges from 0.025mm to 0.04mm. Further, the thickness of the copper foil layer ranges from 0.03mm to 0.06mm. Further, the corrugated glue is attached to the product. Further, the thickness of the nano carbon layer is 0.04 mm-0.06 mm. The utility model has the advantages that the nano carbon layer and the graphite layer are respectively arranged at two sides of the iron-nickel layer to serve as main heat conducting layers, so that heat is conveniently led out from a product along the adhesive tape, the iron-nickel layer serves as an electromagnetic shielding layer to shield low-frequency electromagnetic wave lower than 1MHz, and meanwhile, the iron-nickel layer has heat conduction, and the copper foil layer s