Ultrathin easy-to-control electromagnetic shielding insulation paste

Abstract

The utility model discloses an ultrathin easy-to-control electromagnetic shielding insulating adhesive tape which 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] This utility model relates to the technical field of insulating adhesive products, and in particular to an ultra-thin, easily controllable electromagnetic shielding insulating adhesive. Background Technology

[0002] The circuitry on a computer motherboard is complex and densely packed. To prevent short circuits or electrical problems between different circuits, ensure the stability and reliability of signal transmission, and protect the motherboard from external contaminants such as moisture and dust to ensure stable operation in harsh environments, insulating materials are required. Furthermore, this insulating material must also possess electromagnetic shielding capabilities to reduce the impact of electromagnetic interference (EMI) on signal transmission. Existing adhesives struggle to effectively combine electromagnetic shielding and insulation functions. Moreover, to meet the diverse requirements of high-frequency signal transmission, electromagnetic shielding, insulation protection, and high current carrying capacity, as well as the complex circuit layout, electromagnetic shielding materials of varying thicknesses are needed, which existing adhesives cannot simultaneously satisfy. Utility Model Content

[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an ultra-thin and easily controllable electromagnetic shielding insulating adhesive tape. This electromagnetic shielding insulating adhesive tape integrates superior insulation and electromagnetic shielding functions, and integrates copper foil tapes of different thicknesses into one piece, which can meet the electromagnetic shielding and insulation requirements of different circuit designs of electronic devices.

[0004] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0005] An ultra-thin, easily controllable electromagnetic shielding insulating adhesive tape includes a copper foil tape assembly, a flame-retardant insulating film layer disposed 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 includes multiple copper foil tapes.

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

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

[0008] Furthermore, the copper foil tape includes a copper foil layer and conductive adhesive layers disposed 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 of ​​the flame-retardant insulating film layer that does not cover the copper foil tape assembly.

[0011] Furthermore, the silicone protective film includes a polyester film layer and a silicone adhesive layer, with the silicone adhesive layer attached to the flame-retardant insulating film layer.

[0012] Furthermore, the silicone protective film has outwardly extending tabs.

[0013] Furthermore, the silicone protective film has fold lines at the bending points.

[0014] Furthermore, at the corresponding bending position, the copper foil tape assembly is also provided with outwardly extending release film pull tabs.

[0015] The beneficial effects of this utility model are:

[0016] This invention integrates multiple copper foil tapes of different thicknesses and flame-retardant insulating film into a silicone protective film, so that the adhesive tape has both superior electromagnetic shielding and insulation functions.

[0017] In addition to its superior insulation function, the flame-retardant insulating film layer in this invention also has excellent fire-retardant properties, which can improve the safety of adhesive products and enable the fire rating to reach UL94VTM-V0.

[0018] The silicone protective film in this invention provides support for the copper foil tape assembly and the flame-retardant insulating film layer, and is provided with a pull tab, which facilitates the application of the product and the removal of the silicone protective film after application.

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

[0020] This invention features fold lines at the bending points of adhesive products to facilitate bending and positioning, and release film pull tabs at the fold lines for easier operation.

[0021] Overall, this utility model has the following advantages:

[0022] (1) Easy to install and use: The adhesive of this utility model has an ultra-thin structure, which makes it easy to attach and install in a small space without increasing the volume and weight too much, making it suitable for use in the internal structure of electronic devices.

[0023] (2) Easy to use: During use, the adhesive can be easily applied to the area that needs to be shielded without complicated tools or processes, which reduces the difficulty of operation;

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

[0025] (4) Strong adaptability: The adhesive has good flexibility and extensibility, 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 has excellent fire-retardant properties, high safety in use, and can maintain stable performance in complex environments. Attached Figure Description

[0027] Figure 1 This is an exploded structural diagram of the ultra-thin, easily controllable electromagnetic shielding insulating adhesive tape of this utility model.

[0028] Figure 2 This is a schematic diagram of the combined structure of the ultra-thin, easily controllable electromagnetic shielding insulating adhesive tape of this utility model.

[0029] In the diagram, 1: copper foil tape assembly; 11: copper foil tape; 2: flame-retardant insulating film layer; 3: antistatic release film; 4: silicone protective film; 41: fold line; 42: pull ear; 5: release film pull ear. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to 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 scope of protection of the present invention.

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

[0032] The copper foil tape assembly 1 includes multiple copper foil tapes 11 of different thicknesses. The arrangement of these copper foil tapes 11 is designed according to the circuit design requirements of the computer motherboard in the application. During arrangement, the multiple copper foil tapes can be arranged vertically or horizontally to form electromagnetic shielding structures of different thicknesses corresponding to different circuits.

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

[0034] The flame-retardant insulating film layer 2 comprises multiple flame-retardant insulating film sheets attached to the copper foil tape assembly. For each copper foil tape, multiple flame-retardant insulating film sheets can be attached according to insulation requirements. In addition to superior insulation properties, the flame-retardant insulating film layer 2 also possesses excellent fire-retardant properties, enhancing the safety of the adhesive product and achieving a fire rating of UL94 VTM-V0.

[0035] This invention integrates multiple copper foil tapes of different thicknesses and flame-retardant insulating films into a silicone protective film, enabling the adhesive to simultaneously possess superior electromagnetic shielding and insulation functions.

[0036] An antistatic release film 3 is provided on the area of ​​the copper foil tape assembly 1 not covered by the flame-retardant insulating film layer 2. The antistatic release film 3 includes a polyester base film, antistatic coatings on both sides of the polyester base film, and a silicone oil layer on one of the antistatic coatings; 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 without the silicone oil layer is attached to a silicone protective film 4.

[0037] The silicone protective film 4 includes a polyester film layer and a silicone adhesive layer, with the silicone adhesive layer 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 has outwardly extending pull tabs 42, which facilitate product application and subsequent removal of the silicone protective film.

[0038] The silicone protective film 4 has fold lines 41 at the bending positions for easy bending and positioning. Corresponding to the bending positions, the copper foil tape assembly 1 also has outwardly extending release film pull tabs 5 for easier operation. Furthermore, the release film pull tabs 5 are dual-silicone release films, comprising a PET substrate and silicone oil layers disposed on both sides of the PET substrate.

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

[0040] Example

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

[0042] In this embodiment, the three copper foil tapes 11 are arranged vertically, and the dimensions of each copper foil tape 11 are designed according to the circuit design requirements. The bottom copper foil tape 11 is model ZDSDTW-005, which includes a 30μm thick copper foil layer and 12μm thick conductive adhesive layers on both sides of the copper foil layer. The two upper copper foil tapes 11 are model BYH-DC1100, each including a copper foil layer and conductive adhesive layers on both sides of the copper foil layer, with a total thickness of 100±20μm. The planar on-resistance of the copper foil tapes is <= 50 milliohms.

[0043] The flame-retardant insulating film layer 2 includes three flame-retardant insulating film sheets attached to the copper foil tape assembly. These three flame-retardant insulating film sheets are correspondingly arranged and attached to the three copper foil tapes. In this embodiment, the flame-retardant insulating film sheets are polycarbonate flame-retardant insulating films, specifically model BWFRFO-AF01, with a thickness of 0.05-1.0 mm and a black color.

[0044] An antistatic release film 3, designed to fit the shape of the area not covered by the flame-retardant insulating film layer on the copper foil tape assembly, is provided. Specifically, the antistatic release film 3 includes a polyester base film, antistatic coatings on both sides of the polyester base film, and a silicone oil layer on one of the antistatic coatings; 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 without the silicone oil layer is attached to a silicone protective film 4. The antistatic release film 3 used in this embodiment is model SYB5001ES and is blue in color.

[0045] The silicone protective film 4 covering the top layer of the product comprises a polyester film layer and a silicone adhesive layer, with the silicone adhesive layer attached to the flame-retardant insulating film layer. This silicone protective film 4 provides support for the copper foil tape assembly 1 and the flame-retardant insulating film layer 2, and has outwardly extending pull tabs 42. In this embodiment, the silicone protective film 4 is model S5012L-38B, blue in color, with a silicone adhesive layer thickness of 0.010±0.002mm and a polyester film layer thickness of 0.050±0.003mm. The peel strength of this silicone protective film 4 is 12.5±2.5g / mm.

[0046] The silicone protective film 4 has two fold lines 41 at the bending position for easy bending and positioning. Corresponding to the bending position, the copper foil tape assembly 1 also has two outwardly extending release film tabs 5 for easier operation. Furthermore, the release film tabs 5 are dual-silicone release films, comprising a PET substrate and silicone oil layers on both sides of the PET substrate. In this embodiment, the release film tabs use SYB75045D release film with a thickness of 75±5μm.

[0047] The antistatic release film 3 makes it easier to remove the silicone protective film 4 after it is applied.

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

[0049] When using, remove the bottom release film, attach the adhesive product to the corresponding motherboard position on the bottom shell of the laptop according to the attachment requirements, then remove the release film pull tab 5 at the fold line, bend the adhesive along the fold line 41, and then use the pull tab 42 on the silicone protective film 4 to remove the silicone protective film 4. The antistatic release film 3 is also removed at the same time. The flame-retardant insulating film layer and the copper foil tape assembly work together to provide electromagnetic shielding and insulation for the motherboard.

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

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A thin, easily controllable electromagnetic shielding insulating adhesive tape, characterized in that, The copper foil tape assembly includes a copper foil tape assembly, a flame-retardant insulating film layer disposed 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 includes multiple copper foil tapes.

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

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

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

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

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

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

8. The ultra-thin, easily controllable electromagnetic shielding insulating adhesive tape according to claim 1, characterized in that, The silicone protective film has outwardly extending tabs.

9. The ultra-thin, easily controllable electromagnetic shielding insulating adhesive tape according to claim 1, characterized in that, The silicone protective film has fold lines at the bending points.

10. The ultra-thin, easily controllable electromagnetic shielding insulating adhesive tape according to claim 9, characterized in that, At the corresponding bending position, the copper foil tape assembly is also provided with outwardly extending release film pull tabs.

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