Multilayer conductive adhesive tape

Abstract

The utility model discloses a multilayer conductive adhesive tape, which belongs to the technical field of conductive adhesive tapes and comprises a protective layer, a conductive cloth layer, a conductive adhesive tape layer and a base material layer, the protective layer, the conductive cloth layer, the conductive adhesive tape layer and the base material layer are sequentially stacked; the protective layer is provided with a first spot breaking structure and a protective layer main body; the plurality of first spot breaking structures are uniformly arranged in the protective layer main body at intervals; the conductive cloth layer is provided with second spot breaking structures and a conductive cloth layer main body, and the plurality of second spot breaking structures are uniformly arranged in the conductive cloth layer main body at intervals; the base material layer is provided with third point breaking structures and a base material body, and the multiple third point breaking structures are evenly arranged in the base material body at intervals. The multilayer conductive adhesive tape provided by the utility model solves the technical problem of how to improve the use convenience of the conductive adhesive tape.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive adhesive tapes, in particular to a multi-layer conductive adhesive tape. Background Art

[0002] Conductive tape is a metal foil or cloth with a highly conductive adhesive backing. The adhesive and the base material form a complete conductor. Currently, commonly used conductive tapes are primarily composed of a base resin and conductive fillers, or particles. The base resin binds the particles together, forming a conductive path and achieving a conductive connection between the materials being bonded.

[0003] Conductive tape has excellent electrical conductivity, effectively conducting current. Furthermore, its flexibility and strong adhesion make it easy to attach to various surfaces. Furthermore, it effectively shields magnetic fields and electromagnetic waves, reducing electromagnetic interference. Consequently, due to its unique properties, conductive tape is widely used in various fields.

[0004] For example, in the field of electronic product manufacturing, it can be used to seal the seams of EMI shielding rooms, housings and electronic equipment, wrap cables for shielding, provide a reliable grounding surface, and provide electrical contact for surfaces that cannot be welded; in electrical engineering, conductive tape can be used for the connection and insulation of electrical equipment; in situations where electromagnetic shielding is required, such as communication equipment, radar systems, etc., conductive tape can play an important role.

[0005] Based on this, Chinese patent CN1105762C discloses a conductive tape. This extremely thin tape is made by forming a conductive adhesive on a metal-deposited layer on a resin film. The metal-deposited layer is formed by vacuum-depositing a conductive metal substance or a mesh-like metal-deposited layer on one side of the resin film. This conductive tape features a simple manufacturing process, is easy to cut and use on the jobsite, and is both conductive and capable of blocking electron waves.

[0006] However, the conductive tape disclosed above still has the technical problem of insufficient convenience in use. Specifically, when the conductive tape disclosed above is actually used, it is necessary to use scissors or other sharp objects to cut the tape from the tape roll to ensure that the tape is of appropriate length; when it is necessary to tear the tape from the surface of an object, it is necessary to use fingernails or a knife to first lift one side of the tape, and then pinch the tape to tear it off. As a result, this conductive tape has many problems in actual application. For example, it is easy to find a tool to cut the tape during use; the tape itself is very tough and difficult to cut; at the same time, the end of the tape after use is attached to the tape roll, and it is difficult to find the attachment head for the next use, which makes the conductive tape very troublesome in casual applications. Utility Model Content

[0007] Based on this, it is necessary to provide a multi-layer conductive tape to address the technical problem of how to improve the convenience of use of the conductive tape.

[0008] A multi-layer conductive tape comprises: a protective layer, a conductive cloth layer, a conductive tape layer and a base material layer; the protective layer, the conductive cloth layer, the conductive tape layer and the base material layer are stacked in sequence; the protective layer is provided with a first point-break structure and a protective layer body; a plurality of the first point-break structures are evenly spaced within the protective layer body; the conductive cloth layer has a second point-break structure and a conductive cloth layer body, a plurality of the second point-break structures are evenly spaced within the conductive cloth layer body; the base material layer is provided with a third point-break structure and a base material body, a plurality of the third point-break structures are evenly spaced within the base material body.

[0009] Furthermore, the protective layer is a black or dark PET film layer structure; the protective layer is covered on the conductive cloth layer, and the conductive tape layer is arranged under the conductive cloth layer.

[0010] Furthermore, the conductive tape layer has a fourth dot-break structure and a conductive tape main body, and a plurality of the fourth dot-break structures are evenly spaced in the conductive tape main body.

[0011] Furthermore, the first point breaking structure has an easy-to-break tooth line, a fracture structure and a V-shaped tearing structure.

[0012] Furthermore, a plurality of the easily-breakable tooth lines are evenly arranged on the main body of the protective layer, and each of the easily-breakable tooth lines is perpendicular to the edges on both sides of the main body of the protective layer.

[0013] Furthermore, the distance between every two adjacent easily breakable tooth lines is equal.

[0014] Furthermore, at least one fracture structure is provided in the easily-breakable tooth line.

[0015] Furthermore, each of the two ends of the easily breakable tooth line is provided with a V-shaped tearing structure.

[0016] Furthermore, the breakable tooth line is composed of a plurality of through holes arranged at intervals.

[0017] Furthermore, the thickness of the protective layer is 15 μm to 20 μm.

[0018] In summary, the utility model discloses a multi-layer conductive tape, which is provided with a protective layer, a conductive cloth layer, a conductive tape layer, and a base material layer; the protective layer, the conductive cloth layer, the conductive tape layer, and the base material layer are stacked in sequence; the protective layer is provided with a first point-breaking structure and a protective layer body; a plurality of the first point-breaking structures are evenly spaced within the protective layer body; the conductive cloth layer has a second point-breaking structure and a conductive cloth layer body, and a plurality of the second point-breaking structures are evenly spaced within the conductive cloth layer body; the base material layer is provided with a third point-breaking structure and a base material body, and a plurality of the third point-breaking structures are evenly spaced within the base material body. The protective layer is provided with a plurality of first point-breaking structures; the conductive cloth layer has a plurality of second point-breaking structures, and the base material layer is provided with a plurality of third point-breaking structures; thus, the user can use a little force to cut and separate the three as needed at a preset length without the need for tools such as scissors. Therefore, the utility model discloses a multi-layer conductive tape, which solves the technical problem of how to improve the ease of use of conductive tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a multi-layer conductive tape according to the present invention;

[0020] Figure 2 This is a schematic structural diagram of a multi-layer conductive tape in another direction of the present invention;

[0021] Figure 3 This is a schematic structural diagram of a multi-layer conductive tape in another direction of the present invention. DETAILED DESCRIPTION

[0022] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0028] Please also refer to Figures 1 to 2 The utility model provides a multi-layer conductive tape comprising: a protective layer 1, a conductive cloth layer 2, a conductive tape layer 3 and a base material layer 4; the protective layer 1, the conductive cloth layer 2, the conductive tape layer 3 and the base material layer 4 are stacked in sequence; the protective layer 1 is provided with a first dot-break structure 101 and a protective layer body 102; a plurality of the first dot-break structures 101 are evenly spaced within the protective layer body 102; the conductive cloth layer 2 has a second dot-break structure 201 and a conductive cloth layer body 202, a plurality of the second dot-break structures 201 are evenly spaced within the conductive cloth layer body 202; the base material layer 4 is provided with a third dot-break structure 401 and a base material body 402, a plurality of the third dot-break structures 401 are evenly spaced within the base material body 402.

[0029] Specifically, the protective layer 1 is preferably a black or dark-colored PET film structure; the protective layer 1 is disposed over the conductive fabric layer 2, and the conductive tape layer 3 is disposed beneath the conductive fabric layer 2. Thus, the protective layer 1 can be disposed as the outermost layer of the conductive tape body, thereby providing light-shielding protection, preventing external forces or objects from contacting and contaminating the conductive fabric layer 2. It also prevents the conductive fabric layer 2 and the conductive tape layer 3 from aging due to light exposure, thereby extending the life of the tape.

[0030] Specifically, the conductive fabric layer 2 is a conductive fabric made of polyester fiber or polyimide fiber, and the conductive tape layer 3 disposed thereunder is a viscous, conductive, tape-shaped colloid structure formed by adding conductive fillers, such as carbon powder or metal powder, to a resin substrate to increase the conductivity of the resin substrate. The resin substrate can typically be epoxy resin, silicone, polyurethane, polyimide, or acrylic. During the manufacturing process of the conductive tape, conductive fillers, such as metal powder or carbon powder, as well as additives such as curing agents and accelerators, are added to the epoxy resin, followed by mixing, coating, and curing to form a conductive tape. The conductive fillers conduct current in the tape, while the epoxy resin acts as a bond and supports the conductive fillers.

[0031] Specifically, the substrate layer 4 typically serves as a release film layer and can be a thin film structure typically made of materials such as PVC or PET. The substrate layer 4 is disposed beneath the conductive tape layer 3 to provide isolation and facilitate peeling. Firstly, in the tape roll state, the conductive tape layer 3 can be isolated from the protective layer 1; secondly, it facilitates peeling the conductive tape layer 3 from the substrate layer 4, thus fulfilling the function of a release film.

[0032] Specifically, based on the foregoing, it can be seen that the materials used to make the protective layer 1, the conductive fabric layer 2, and the base layer 4 are relatively tough. Consequently, users must rely on tools such as cutters and scissors to cut the conductive tape to a specified length. However, in the multi-layer conductive tape structure proposed in the present invention, the protective layer 1 is provided with a plurality of first break structures 101; the conductive fabric layer 2 has a plurality of second break structures 201; and the base layer 4 has a plurality of third break structures 401. Thus, the user can simply apply a little force to separate the three layers at a predetermined length, without the need for tools such as scissors. However, since the conductive tape layer 3 is made of a resin base with conductive fillers added to it, its inherent toughness is relatively weak. Even without the break structures, it can be torn apart with force. Furthermore, the absence of the break structures prevents the conductive tape from being difficult to laminate into a roll due to the multiple break structures.

[0033] Furthermore, the conductive tape layer 3 has a fourth dotted structure 301 and a conductive tape body 302, with a plurality of the fourth dotted structures 301 evenly spaced within the conductive tape body 302. Specifically, to facilitate tearing of the conductive tape layer 3, a plurality of dotted structures 302 may be evenly spaced within the conductive tape layer 3.

[0034] More specifically, in order to enhance the convenience of rolling the conductive tape layers during stacking, and to prevent accidental disconnection of the material segments during lamination of the conductive tape, the first point-breaking structure 101, the second point-breaking structure 201 and the third point-breaking structure 401 are staggered with each other.

[0035] For further information, please refer to Figure 3; The first point breaking structure 101 has an easy-to-break tooth line 101a, a fracture structure 101b and a V-shaped tear structure 101c; a plurality of easy-to-break tooth lines 101a perpendicular to the edges of both sides of the protective layer main body 102 are evenly arranged on the protective layer main body 102, and the spacing between each two adjacent easy-to-break tooth lines 101a is equal; at least one fracture structure 101b is arranged in the easy-to-break tooth line 101a; each of the two ends of the easy-to-break tooth line 101a is provided with a V-shaped tear structure 101c.

[0036] Specifically, in the technical solution disclosed by the utility model of a multi-layer conductive tape, the protective layer 1 provided on the rolled conductive tape is provided with the easy-to-break tooth lines 101a perpendicular to its two side edges. These equidistant easy-to-break tooth lines 101a separate the rolled protective layer 1 into several small pieces of equal length. When in use, you only need to pull hard to tear the structure of the layer at the easy-to-break tooth lines 101a without the help of a tool, which is very convenient to use.

[0037] Furthermore, a fracture structure 101b is provided in the easy-to-break tooth line 101a, and a V-shaped tear structure 101c is provided at the two ends of each easy-to-break tooth line 101a. The setting of the V-shaped tear structure 101c can facilitate the separation of the protective layer 1 from the easy-to-break tooth line 101a when tearing, without deforming the structure of the layer; and, by pulling the easy-to-break tooth line 101a from the tearing holes on both sides to the fracture structure 101b, the required part can be quickly torn off and separated.

[0038] Furthermore, the second point-breaking structure 201, the third point-breaking structure 401 and the fourth point-breaking structure 301 may all have the same or similar structural composition as the first point-breaking structure 101, so that the conductive cloth layer 2, the conductive tape layer 3 and the substrate layer 4 can be torn off as needed without the aid of tools such as knives.

[0039] Further, such as Figure 2 and Figure 3 As shown, the easily breakable tooth line 101a is composed of a plurality of through holes arranged at intervals, and the through holes can be formed by punching the protective layer 1 and other material rolls with arranged needle-shaped tools at intervals.

[0040] Furthermore, the thickness of the protective layer 1 is 15 μm to 20 μm. If the protective layer 1 is too thick, it will not be light enough and will not be easy to tear. If it is too thin, it will not be able to block light. Similarly, the thickness of the substrate layer 4 is the same as that of the protective layer 1.

[0041] Furthermore, the thickness of the conductive cloth layer 2 is 30 μm to 45 μm; the thickness of the conductive tape layer 3 can be the same as or similar to that of the conductive cloth layer 2 to facilitate the filling of the conductive medium and the realization of the conductive function.

[0042] In summary, the utility model is a multi-layer conductive tape which is respectively provided with a protective layer 1, a conductive cloth layer 2, a conductive tape layer 3 and a base material layer 4; the protective layer 1, the conductive cloth layer 2, the conductive tape layer 3 and the base material layer 4 are stacked in sequence; the protective layer 1 is provided with a first point-breaking structure 101 and a protective layer main body 102; a plurality of the first point-breaking structures 101 are evenly spaced in the protective layer main body 102; the conductive cloth layer 2 has a second point-breaking structure 201 and a conductive cloth layer main body 202, and a plurality of the second point-breaking structures 201 are evenly spaced in the conductive cloth layer main body 202; the base material layer 4 is provided with a third point-breaking structure 401 and a base material main body 402, and a plurality of the third point-breaking structures 401 are evenly spaced in the base material main body 402. The protective layer 1 is provided with a plurality of first dot-break structures 101; the conductive fabric layer 2 has a plurality of second dot-break structures 201; and the base material layer 4 has a plurality of third dot-break structures 401. Thus, the user can simply apply a little force to separate the three layers at a predetermined length, without the need for tools such as scissors. Therefore, the multi-layer conductive tape of this utility model solves the technical problem of improving the ease of use of conductive tape.

[0043] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A multi-layer conductive tape, characterized in that: The invention comprises: a protective layer (1), a conductive cloth layer (2), a conductive tape layer (3) and a base material layer (4); the protective layer (1), the conductive cloth layer (2), the conductive tape layer (3) and the base material layer (4) are stacked in sequence; the protective layer (1) is provided with a first point-break structure (101) and a protective layer main body (102); a plurality of the first point-break structures (101) are evenly spaced in the protective layer main body (102); the conductive cloth layer (2) has a second point-break structure (201) and a conductive cloth layer main body (202), and a plurality of the second point-break structures (201) are evenly spaced in the conductive cloth layer main body (202); the base material layer (4) is provided with a third point-break structure (401) and a base material main body (402), and a plurality of the third point-break structures (401) are evenly spaced in the base material main body (402).

2. The multi-layer conductive tape according to claim 1, characterized in that: The protective layer (1) is a black or dark PET film layer structure; the protective layer (1) is arranged on top of the conductive cloth layer (2), and the conductive tape layer (3) is arranged below the conductive cloth layer (2).

3. The multi-layer conductive tape according to claim 2, wherein: The conductive tape layer (3) comprises a fourth point-break structure (301) and a conductive tape main body (302), wherein a plurality of the fourth point-break structures (301) are evenly spaced within the conductive tape main body (302).

4. The multi-layer conductive tape according to claim 1, wherein: The first point breaking structure (101) comprises an easily breakable tooth line (101a), a fracture structure (101b) and a V-shaped tearing structure (101c).

5. The multi-layer conductive tape according to claim 4, characterized in that: A plurality of easily breakable tooth lines (101a) are evenly arranged on the protective layer main body (102), and each of the easily breakable tooth lines (101a) is perpendicular to the edges on both sides of the protective layer main body (102).

6. The multi-layer conductive tape according to claim 5, characterized in that: The distance between any two adjacent easily breakable tooth lines (101a) is equal.

7. The multi-layer conductive tape according to claim 6, characterized in that: At least one fracture structure (101b) is provided in the easily-breakable tooth line (101a).

8. The multi-layer conductive tape according to claim 7, characterized in that: Each of the two ends of the easily breakable tooth line (101a) is provided with a V-shaped tearing structure (101c).

9. The multi-layer conductive tape according to claim 8, characterized in that: The breakable tooth line (101a) is composed of a plurality of through holes arranged at intervals.

10. The multi-layer conductive tape according to claim 9, characterized in that: The thickness of the protective layer (1) is 15 μm to 20 μm.

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