Conductive adhesive tape with high adaptability

Abstract

The utility model discloses a conductive adhesive tape with strong adaptability, which relates to the technical field of conductive adhesive tapes and comprises a conductive adhesive tape main body, the conductive adhesive tape main body comprises a conductive base material layer, a connecting surface arranged on one side surface of the conductive base material layer, an insulating protective layer arranged outside the conductive base material layer, and dry moisture absorption particles filled on the insulating protective layer, the breathable film is arranged outside the insulating protective layer, and the conductive base material layer is filled with a conductive filler; wherein the surface of the insulation protection layer is provided with a hole groove structure, the hole groove structure is filled with the dry moisture absorption particles, moisture permeating into the conductive base material layer from the outside is absorbed through the dry moisture absorption particles filled in the hole groove structure on the insulation protection layer, and moisture-proof protection on the conductive base material layer is formed. Therefore, the influence of moisture permeation on the performance of the conductive substrate layer is prevented, the conditions of accelerated aging and unstable conductivity are avoided, the conductive adhesive tape main body is ensured to work stably for a long time in an electronic product, and the environment adaptability of the conductive adhesive tape main body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive rubber strips, in particular to a conductive rubber strip with strong adaptability. Background Art

[0002] Conductive rubber strips, commonly known as zebra strips, are formed by alternating layers of conductive silicone and insulating silicone followed by vulcanization. Conductive rubber connectors offer stable and reliable performance, and are simple and efficient to manufacture and assemble. They are widely used to connect LCD displays to circuit boards in products such as game consoles, phones, electronic watches, calculators, and meters. With the rapid development of electronic technology, the increasing miniaturization and lightweighting of electronic products, and the increasing demand for high performance, conductive rubber strips have become a key electronic material with important applications in multiple industries. With technological advancements and growing market demand, conductive rubber strips are becoming increasingly popular.

[0003] As the performance of electronic products continues to improve, the requirements for the conductivity, reliability and environmental adaptability of conductive adhesive strips are also getting higher and higher. In the existing technology, conductive adhesive strips, as an emerging conductive connection material, have solved some problems to a certain extent, but there are still some shortcomings. For example, when the humidity of the use environment becomes higher, it may affect the conductive performance, durability and adhesion of the conductive adhesive strips. For example, the conductive performance is affected, resulting in short circuits, accelerated aging of the conductive adhesive strips, and loosening of the adhesive bond of the conductive adhesive strips, among other adverse effects.

[0004] For example, in areas with high air humidity, when the conductive adhesive strips inside some electronic products are penetrated by moisture, the stability of the electronic products may be reduced or even a short circuit may occur.

[0005] In summary, in order to meet the growing market demand and higher requirements for the environmental adaptability of conductive adhesive strips in different application environments, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a highly adaptable conductive rubber strip, comprising a conductive rubber strip body, the conductive rubber strip body comprising a conductive substrate layer, a connecting surface provided on one side of the conductive substrate layer, an insulating protective layer provided outside the conductive substrate layer, dry hygroscopic particles filled on the insulating protective layer, and a breathable film provided outside the insulating protective layer, wherein the conductive substrate layer is filled with a conductive filler;

[0008] Wherein, a pore structure is provided on the surface of the insulating protective layer, and the dry hygroscopic particles are filled in the pore structure.

[0009] As a further solution of the present invention: an adhesive layer is provided outside the connecting surface, a protrusion structure is provided on the surface of the connecting surface, and a groove structure corresponding to the protrusion structure is provided on the adhesive layer.

[0010] As a further solution of the present invention: a fiber layer is provided outside the breathable membrane, and the fiber layer is formed on the surface of the breathable membrane by a weaving process.

[0011] As a further solution of the present invention: the surface of the protruding structure has a roughness greater than that of the connecting surface.

[0012] As a further solution of the present invention: the insulating protective layer, the breathable membrane and the fiber layer cover the other surfaces of the conductive substrate layer except the connection surface.

[0013] As a further solution of the present invention, the side end of the adhesive layer is bent at 90 degrees to wrap around a portion of the side of the fiber layer close to the bottom.

[0014] Compared with the prior art, the beneficial effects of the present technical solution are as follows: when in use, the present invention electrically connects the connecting surface on one side of the conductive substrate layer to the connecting point, thereby ensuring the conductive performance; the insulating protective layer outside the conductive substrate layer is used to insulate and protect the conductive substrate layer, thereby ensuring that it will not contact the metal shell of the electronic device and cause a short circuit; at the same time, the dry hygroscopic particles filled in the hole groove structure on the insulating protective layer are used to absorb moisture that penetrates into the conductive substrate layer from the outside, thereby forming moisture-proof protection for the conductive substrate layer, thereby preventing the infiltration of moisture from affecting the performance of the conductive substrate layer; the dry hygroscopic particles are sealed by the breathable membrane while ensuring the breathability, thereby avoiding situations such as accelerated aging and unstable conductivity, thereby ensuring the long-term stability of the conductive rubber strip body in the operation of electronic products, and improving the environmental adaptability of the conductive rubber strip body;

[0015] When the conductive rubber strip body is used to make an electrical connection with the connection point, the adhesive layer outside the connection surface is used to bond and fix it to the connection point. After determining the connection position, the conductive rubber strip body is pressed so that the raised structure provided on the surface of the connection surface passes through the adhesive layer through the groove structure of the adhesive layer and contacts the connection point, thereby realizing the electrical connection between the conductive substrate layer and the connection point, ensuring electrical conductivity while ensuring conductive stability.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the adhesive layer structure of the utility model;

[0021] The corresponding reference numerals in the accompanying drawings are described as follows:

[0022] 1. Conductive rubber strip body; 11. Conductive substrate layer; 12. Connecting surface; 121. Protrusion structure; 13. Insulating protective layer; 131. Hole and groove structure; 14. Dry and hygroscopic particles; 15. Breathable membrane; 16. Fiber layer; 17. Adhesive layer; 171. Groove structure. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-3 A highly adaptable conductive rubber strip includes a conductive rubber strip body 1, the conductive rubber strip body 1 including a conductive substrate layer 11, a connecting surface 12 provided on one side of the conductive substrate layer 11, an insulating protective layer 13 provided outside the conductive substrate layer 11, dry hygroscopic particles 14 filled on the insulating protective layer 13, and a breathable membrane 15 provided outside the insulating protective layer 13. The conductive substrate layer 11 is filled with a conductive filler, wherein the conductive filler is one or more combinations of silver powder, aluminum powder, nickel powder, and carbon powder.

[0025] A pore structure 131 is provided on the surface of the insulating protection layer 13 , and the pore structure 131 is filled with dry hygroscopic particles 14 .

[0026] Specifically, when in use, the present invention electrically connects the connecting surface 12 on one side of the conductive substrate layer 11 to the connection point, thereby ensuring the conductive performance. The insulating protective layer 13 outside the conductive substrate layer 11 is used to insulate and protect the conductive substrate layer 11, ensuring that it will not contact the metal shell of the electronic device and cause a short circuit. At the same time, the dry hygroscopic particles 14 filled on the insulating protective layer 13 absorb moisture that penetrates into the conductive substrate layer 11 from the outside, forming moisture-proof protection for the conductive substrate layer 11, thereby preventing the infiltration of moisture from affecting the performance of the conductive substrate layer 11, avoiding situations such as accelerated aging and unstable conductivity, ensuring the long-term stability of the conductive rubber strip body 1 in the operation of electronic products, and improving the environmental adaptability of the conductive rubber strip body 1.

[0027] Among them, the dry hygroscopic particles 14 are filled in the hole structure 131 set on the surface of the insulating protective layer 13, so that the dry hygroscopic particles 14 are more filled on the surface of the insulating protective layer 13, thereby maximizing the moisture absorption performance. At the same time, a breathable membrane 15 is set outside the insulating protective layer 13, and the breathable membrane 15 is used to cover the insulating protective layer 13 to prevent the dry hygroscopic particles 14 from scattering when the insulating protective layer 13 is squeezed. At the same time, the air permeability of the breathable membrane 15 is used to enable the dry hygroscopic particles 14 to absorb moisture in the air normally.

[0028] Preferably, a fiber layer 16 is provided outside the breathable membrane 15, and the fiber layer 16 is formed on the surface of the breathable membrane 15 by a weaving process;

[0029] Specifically, a fiber layer 16 is added to the surface of the breathable membrane 15 to enhance the mechanical strength of the surface and prevent the breathable membrane 15 from being damaged during use, which may cause the dry hygroscopic particles 14 to be scattered. At the same time, the fiber layer 16 formed by the weaving process also has good air permeability, so that the combination of the fiber layer 16 and the breathable membrane 15 can protect the dry hygroscopic particles 14 while avoiding affecting the dry hygroscopic particles 14 from absorbing moisture.

[0030] Furthermore, the insulating protective layer 13 , the breathable membrane 15 and the fiber layer 16 cover the other surfaces of the conductive substrate layer 11 except the connecting surface 12 .

[0031] Specifically, when the conductive rubber strip body 1 is used, the connection surface 12 of the conductive substrate layer 11 is electrically connected to the connection point, while the other surfaces of the insulating protective layer 13, the breathable membrane 15 and the fiber layer 16 are covered and protected, thereby providing multi-directional insulation protection for the conductive substrate layer 11, so that the conductive substrate layer 11 is protected from external influences.

[0032] In the embodiment of the present utility model, reference Figure 2-Figure 3An adhesive layer 17 is provided on the outside of the connecting surface 12 , a protrusion structure 121 is provided on the surface of the connecting surface 12 , and a groove structure 171 corresponding to the protrusion structure 121 is provided on the adhesive layer 17 .

[0033] Specifically, when the conductive rubber strip body 1 is used to electrically connect to the contact point, the adhesive layer 17 on the outside of the connection surface 12 is used to bond and fix it to the contact point. After the connection position is determined, the conductive rubber strip body 1 is pressed, so that the protrusion structure 121 provided on the surface of the connection surface 12 passes through the groove structure 171 of the adhesive layer 17 and penetrates the adhesive layer 17 and contacts the contact point, thereby achieving electrical connection between the conductive substrate layer 11 and the contact point, ensuring electrical conductivity while ensuring conductive stability.

[0034] For example, when the conductive rubber strip body 1 needs to be electrically connected between two points of an electronic product, the two ends of the connection surface 12 are pressed, and the conductive substrate layer 11 is brought into contact with the connection point using the raised structure 121, thereby achieving electrical connection between the two points. In addition to the areas where the two ends of the connection surface 12 are connected to the connection points, slight pressure can be applied to the adhesive layer 17 to adhere and fix it to the plane between the two points (such as in a PCB board, or the bottom surface between the two connection points), and then the undamaged adhesive layer 17 is used to protect the connection area of the connection surface 12 to ensure good protection performance.

[0035] Preferably, the surface of the protruding structure 121 has a roughness greater than that of the connecting surface 12 .

[0036] Specifically, through this arrangement, there are more contact points between the protruding structure 121 and the contact point. At the same time, when the surface of the protruding structure 121 breaks through the adhesive layer 17 using the groove structure 171, the relatively rough surface can allow the surface of the protruding structure 121 to carry part of the adhesive layer 17 material, thereby making the adhesion with the contact point more firm.

[0037] Preferably, the side end of the adhesive layer 17 forms a 90-degree bend to wrap around a portion of the side surface of the fiber layer 16 close to the bottom.

[0038] Specifically, while the conductive rubber strip body 1 is bonded and fixed by the adhesive layer 17, a portion of the side surface of the wrapped fiber layer 16 close to the bottom is used so that when the side surface of the conductive rubber strip body 1 has adjacent planes, the adhesive layer 17 can simultaneously bond with the adjacent planes using the side surface, thereby further improving the bonding strength of the conductive rubber strip body 1.

[0039] The adhesive layer 17 only wraps a portion of the side of the fiber layer 16 near the bottom, so that when the staff uses it, they can grab other areas not wrapped by the adhesive layer 17, thereby avoiding the adhesive layer 17 sticking to their hands and causing inconvenience in operation.

[0040] 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A highly adaptable conductive rubber strip, characterized in that: The conductive rubber strip body (1) comprises a conductive base material layer (11), a connecting surface (12) provided on one side of the conductive base material layer (11), an insulating protective layer (13) provided outside the conductive base material layer (11), dry hygroscopic particles (14) filled on the insulating protective layer (13), and a breathable film (15) provided outside the insulating protective layer (13); the conductive base material layer (11) is filled with a conductive filler; The surface of the insulating protective layer (13) is provided with a pore structure (131), and the dry hygroscopic particles (14) are filled in the pore structure (131).

2. The highly adaptable conductive rubber strip according to claim 1, characterized in that: An adhesive layer (17) is provided outside the connecting surface (12), a convex structure (121) is provided on the surface of the connecting surface (12), and a groove structure (171) corresponding to the convex structure (121) is provided on the adhesive layer (17).

3. The highly adaptable conductive rubber strip according to claim 2, characterized in that: A fiber layer (16) is provided outside the breathable membrane (15), and the fiber layer (16) is formed on the surface of the breathable membrane (15) by using a weaving process.

4. The highly adaptable conductive rubber strip according to claim 2, characterized in that: The surface of the protruding structure (121) has a roughness greater than that of the connecting surface (12).

5. The highly adaptable conductive rubber strip according to claim 3, characterized in that: The insulating protective layer (13), the breathable membrane (15), and the fiber layer (16) cover the other surfaces of the conductive substrate layer (11) except the connecting surface (12).

6. The highly adaptable conductive rubber strip according to claim 5, characterized in that: The side end of the adhesive layer (17) forms a part of the side surface of the fiber layer (16) close to the bottom and bent at ninety degrees.

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