Ultrathin easy-to-control electromagnetic shielding insulation paste

Abstract

The ultrathin easy-to-control electromagnetic shielding insulating adhesive tape comprises a copper foil adhesive tape assembly, a flame-retardant insulating film layer arranged on one side of the copper foil adhesive tape assembly and a silica gel protective film covering the flame-retardant insulating film layer, and the copper foil adhesive tape assembly comprises a plurality of copper foil adhesive tapes. The electromagnetic shielding insulating adhesive tape integrates excellent insulating and electromagnetic shielding functions, integrates copper foil adhesive tapes with different thicknesses, and can meet the requirements of different circuit designs of electronic equipment.

Description

Technical Field

[0001] The invention relates to the technical field of insulating adhesive tape products, and in particular to an ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape. Background Art

[0002] The circuits on the computer motherboard are complex and dense. In order to prevent short circuits or electrical problems between different circuits, to ensure the stability and reliability of signal transmission, and to protect the motherboard from external pollutants such as moisture and dust to ensure the stable operation of the motherboard in harsh environments, it is necessary to apply materials with insulating functions. In addition, the insulating material must also have a certain electromagnetic shielding function to reduce the impact of electromagnetic interference (EMI) on signal transmission. It is difficult for existing adhesives to combine electromagnetic shielding and insulation functions well. In addition, in order to meet the various requirements of high-frequency signal transmission, electromagnetic shielding, insulation protection, high current carrying, and complex circuit layout, electromagnetic shielding materials of different thicknesses are required. It is difficult for existing adhesives to meet the above requirements at the same time. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide an ultra-thin and easily controllable electromagnetic shielding insulating tape; the electromagnetic shielding insulating tape integrates better insulation and electromagnetic shielding functions, and integrates copper foil tapes of different thicknesses into one, which can meet the electromagnetic shielding and insulation requirements of different circuit designs of electronic equipment.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] An ultra-thin and easily controllable electromagnetic shielding insulating tape comprises a copper foil tape assembly, a flame retardant insulating film layer arranged on one side of the copper foil tape assembly, and a silicone protective film covering the flame retardant insulating film layer. The copper foil tape assembly comprises a plurality of copper foil tapes.

[0006] Furthermore, the copper foil tape assembly includes a plurality of copper foil tapes of different thicknesses.

[0007] Furthermore, the plurality of copper foil tapes are arranged according to circuit design requirements.

[0008] Furthermore, the copper foil tape comprises a copper foil layer and conductive adhesive layers arranged on both sides of the copper foil layer.

[0009] Furthermore, the flame-retardant insulating film layer includes a plurality of flame-retardant insulating film sheets attached to the copper foil tape assembly.

[0010] Furthermore, an antistatic release film is provided in the area where the flame-retardant insulating film layer does not cover the copper foil tape assembly.

[0011] Furthermore, the silicone protective film comprises a polyester film layer and a silicone glue layer, and the silicone glue layer is attached to the flame-retardant insulating film layer.

[0012] Furthermore, the silicone protective film has a pull ear portion extending outward.

[0013] Furthermore, a folding line is provided on the silicone protective film at a position where the folding is required.

[0014] Furthermore, at the position corresponding to the bending position, the copper foil tape assembly is also provided with a release film pull ear extending outward.

[0015] The beneficial effects of the present invention are:

[0016] The present invention integrates a plurality of copper foil tapes of different thicknesses and a flame-retardant insulating film sheet into a silicone protective film, so that the tape has both excellent electromagnetic shielding and insulating functions;

[0017] The flame retardant insulating film layer of the present invention has not only excellent insulation function, but also excellent fire retardant function, which can improve the safety of adhesive products and make the fire protection level reach UL94VTM-V0;

[0018] The silicone protective film in the present invention provides support for the copper foil tape assembly and the flame-retardant insulating film layer, and is provided with a pull ear portion, which can facilitate product attachment and removal of the silicone protective film after attachment.

[0019] The present invention arranges copper foil tapes of different thicknesses according to usage requirements to form electromagnetic shielding structures of different thicknesses, which can be applicable to complex circuit layouts and meet the requirements of different circuit designs for copper foil tapes of different thicknesses.

[0020] The present invention provides a folding line at the position where the adhesive product needs to be bent, so as to facilitate the bending and positioning, and also provides a release film pull ear at the folding line, so as to facilitate the operation.

[0021] In general, the present invention has the following advantages:

[0022] (1) Easy installation and use: The adhesive sticker of the present invention has an ultra-thin structure, which can be easily attached and installed in a small space without adding too much volume and weight, and is suitable for use in the internal structure of electronic equipment;

[0023] (2) Easy to operate: During use, the adhesive tape can be easily attached to the area that needs to be shielded without the need for complicated tools or processes, thus reducing the difficulty of operation;

[0024] (3) Controllable performance: The electromagnetic shielding and insulation performance of the adhesive can be adjusted through thickness layout and design according to specific needs;

[0025] (4) Strong adaptability: The adhesive tape has good flexibility and ductility, and can adapt to surfaces of different shapes and sizes, ensuring good shielding and insulation effects in various complex environments.

[0026] (5) High safety and stability: The adhesive tape has excellent fire retardant function, is safe to use, and can maintain stable performance in complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The figure is a schematic diagram of the exploded structure of the ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape of the present invention.

[0028] Figure 2 It is a schematic diagram of the combined structure of the ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape of the present invention.

[0029] In the figure, 1: copper foil tape assembly, 11: copper foil tape; 2: flame retardant insulating film layer; 3: antistatic release film; 4: silicone protective film, 41: folding line, 42: pull ear; 5: release film pull ear. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings 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.

[0031] like Figure 1 and Figure 2 As shown, an ultra-thin and easily controllable electromagnetic shielding insulating tape comprises a copper foil tape assembly 1, a flame retardant insulating film layer 2 arranged on one side of the copper foil tape assembly 1, and a silicone protective film 4 covering the flame retardant insulating film layer 2, wherein the copper foil tape assembly 1 comprises a plurality of copper foil tapes 11.

[0032] The copper foil tape assembly 1 includes a plurality of copper foil tapes 11 of different thicknesses. The arrangement of the plurality of copper foil tapes 11 is designed according to the circuit design requirements of the computer motherboard when used. When arranged, the plurality of copper foil tapes can be arranged up and down or left and right to form electromagnetic shielding structures of different thicknesses corresponding to different circuits.

[0033] Each copper foil tape 11 includes a copper foil layer and conductive adhesive layers disposed on both sides of the copper foil layer.

[0034] The flame retardant insulating film layer 2 includes a plurality of flame retardant insulating film sheets attached to the copper foil tape assembly. Corresponding to the plurality of copper foil tapes, the plurality of flame retardant insulating film sheets can be attached accordingly according to the insulation requirements. In addition to having a better insulation function, the flame retardant insulating film layer 2 also has a better fire retardant function, which can improve the safety of the adhesive product and make the fire protection level reach UL94 VTM-V0.

[0035] The present invention integrates a plurality of copper foil tapes of different thicknesses and a flame-retardant insulating film sheet on a silicone protective film, so that the tape has both excellent electromagnetic shielding and insulating functions.

[0036] The area where the flame-retardant insulating film layer 2 does not cover the copper foil tape assembly 1 is provided with an antistatic release film 3. The antistatic release film 3 includes a polyester original film, an antistatic coating provided on both sides of the polyester original film, and a silicone oil layer provided on one side of the antistatic coating; the silicone oil layer of the antistatic release film 3 is attached to the copper foil tape assembly 1. The side of the antistatic release film 3 where the silicone oil layer is not provided is attached to a silicone protective film 4.

[0037] The silicone protective film 4 includes a polyester film layer and a silicone glue layer, and the silicone glue layer is attached to the flame retardant insulating film layer. The silicone protective film 4 provides support for the copper foil tape assembly 1 and the flame retardant insulating film layer 2, and the silicone protective film 4 has an outwardly extending pull ear portion 42, which can facilitate product attachment and removal of the silicone protective film after attachment.

[0038] The silicone protective film 4 is provided with a folding line 41 at the position to be bent, which can facilitate the bending and positioning, and the copper foil tape assembly 1 is also provided with a release film pull ear 5 extending outward at the corresponding position to be bent, which can make the operation more convenient. In addition, the release film pull ear 5 is a double silicone release film, which includes a PET substrate and a silicone oil layer arranged on both sides of the PET substrate.

[0039] This adhesive product is provided with a bottom release film on the bottom layer of copper foil tape. The bottom release film has a grid texture, which can press out corresponding grid grooves on the copper foil tape to facilitate air discharge and improve the flatness of attachment.

[0040] Example

[0041] like Figure 1 and Figure 2 As shown, the ultra-thin and easily controllable electromagnetic shielding insulating tape of this embodiment includes a copper foil tape assembly 1, a flame retardant insulating film layer 2 arranged on one side of the copper foil tape assembly 1, and a silicone protective film 4 covering the flame retardant insulating film layer 2, and the copper foil tape assembly 1 includes three copper foil tapes 11.

[0042] In this embodiment, the three copper foil tapes 11 are arranged up and down, and the size specifications of each copper foil tape 11 are designed according to the circuit design requirements. Among them, the copper foil tape 11 located at the bottom adopts the model ZDSDTW-005, which includes a copper foil layer with a thickness of 30μm and a conductive adhesive layer with a thickness of 12μm arranged on both sides of the copper foil layer. The two copper foil tapes 11 located at the top adopt the model BYH-DC1100, each copper foil tape 11 includes a copper foil layer and a conductive adhesive layer arranged on both sides of the copper foil layer, with a total thickness of 100±20μm. Planar on-resistance of copper foil tape: <=50 milliohms.

[0043] The flame retardant insulating film layer 2 includes three flame retardant insulating film sheets attached to the copper foil tape assembly. The three flame retardant insulating film sheets are attached in a corresponding layout corresponding to the three copper foil tapes. In this embodiment, the flame retardant insulating film sheet is a polycarbonate flame retardant insulating film, the model used is BWFRFO-AF01, the thickness is 0.05-1.0 mm, and the color is black.

[0044] The area where the flame-retardant insulating film layer does not cover the copper foil tape assembly is provided with an antistatic release film 3 designed according to the shape of the area. Specifically, the antistatic release film 3 includes a polyester original film, an antistatic coating provided on both sides of the polyester original film, and a silicone oil layer provided on one side of the antistatic coating; the silicone oil layer of the antistatic release film 3 is attached to the copper foil tape assembly 1. The side of the antistatic release film 3 where the silicone oil layer is not provided is attached to the silicone protective film 4. The model of the antistatic release film 3 of this embodiment is SYB5001ES, and the color is blue.

[0045] The silicone protective film 4 covering the top layer of the product includes a polyester film layer and a silicone glue layer, and the silicone glue layer is attached to the flame-retardant insulating film layer. The silicone protective film 4 provides support for the copper foil tape assembly 1 and the flame-retardant insulating film layer 2, and the silicone protective film 4 has an outwardly extending pull ear portion 42. The silicone protective film 4 in this embodiment adopts the model S5012L-38B, the color is blue, the thickness of the silicone glue layer is 0.010±0.002mm, and the thickness of the polyester film layer is 0.050±0.003mm. The peeling force of the silicone protective film 4 is 12.5±2.5g / mm.

[0046] Two folding lines 41 are provided on the silicone protective film 4 at the position to be bent, which can facilitate bending and positioning. In the corresponding position to be bent, the copper foil tape assembly 1 is also provided with two release film pull ears 5 extending outward, which can make the operation more convenient. In addition, the release film pull ear 5 is a double silicone release film, which includes a PET substrate and a silicone oil layer provided on both sides of the PET substrate. The release film pull ear of this embodiment uses a release film of model SYB75045D with a thickness of 75±5μm.

[0047] The provision of the antistatic release film 3 can make it easier to remove the silicone protective film 4 after attachment.

[0048] This adhesive product is provided with a bottom release film on the bottom layer of copper foil tape. The bottom release film has a grid texture, which can press out corresponding grid grooves on the copper foil tape to facilitate air discharge and improve the flatness of attachment.

[0049] When in use, remove the bottom release film, attach the adhesive product to the corresponding position of the computer motherboard according to the attachment requirements, then remove the release film pull ear 5 at the folding line, bend the adhesive according to the folding line 41, and then use the pull ear part 42 on the silicone protective film 4 to remove the silicone protective film 4, and then remove the antistatic release film 3. The flame retardant insulating film layer and the copper foil tape assembly cooperate to play the role of electromagnetic shielding and insulation for the motherboard.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape, characterized in that: It comprises a copper foil tape assembly, a flame retardant insulating film layer arranged on one side of the copper foil tape assembly and a silicone protective film covering the flame retardant insulating film layer. The copper foil tape assembly comprises a plurality of copper foil tapes.

2. The ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape according to claim 1, characterized in that: The copper foil tape assembly includes a plurality of copper foil tapes with different thicknesses.

3. The ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape according to claim 1, characterized in that: The multiple copper foil tapes are arranged according to circuit design requirements.

4. The ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape according to claim 1, characterized in that: The copper foil tape comprises a copper foil layer and conductive adhesive layers arranged on both sides of the copper foil layer.

5. The ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape according to claim 1, characterized in that: The flame retardant insulating film layer comprises a plurality of flame retardant insulating film sheets attached to a copper foil tape assembly.

6. The ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape according to claim 1, characterized in that: An antistatic release film is provided in the area where the flame-retardant insulating film layer does not cover the copper foil tape assembly.

7. The ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape according to claim 1, characterized in that: The silicone protective film comprises a polyester film layer and a silicone glue layer, and the silicone glue layer is attached to the flame-retardant insulating film layer.

8. The ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape according to claim 1, characterized in that: The silicone protective film has a pull ear portion extending outward.

9. The ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape according to claim 1, characterized in that: The silicone protective film is provided with folding lines at positions where bending is required.

10. The ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape according to claim 9, characterized in that: Corresponding to the position to be bent, the copper foil tape assembly is also provided with a release film pull ear extending outward.

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