Epoxy board with multi-layer structure

Abstract

The utility model discloses an epoxy board with a multilayer structure, which comprises a first glass fiber cloth layer, first epoxy resin layers are arranged on the surfaces of the upper side and the lower side of the first glass fiber cloth layer, and a second glass fiber cloth layer is arranged on the surface of one side, far away from the first glass fiber cloth layer, of each first epoxy resin layer. A second epoxy resin layer is arranged on the surface of the other side of the second glass fiber cloth layer, a metal pull net is arranged on the surface of the other side of the second epoxy resin layer, a rubber layer is arranged on the surface of the other side of the metal pull net, a plurality of protruding strips are arranged on the surface of the outer side of the rubber layer, and an upper filling bin and a lower filling bin are formed in the upper side and the lower side of the second epoxy resin layer respectively. A flame retardant is arranged in the upper filling bin, a sponge layer is arranged in the lower filling bin, a plurality of interval spaces formed on the inner side of the metal pull net are filled with carbon fiber layers, a plurality of elastic plates are arranged in the rubber layer, and the elastic plates correspond to the protruding strips one to one; the device is provided with a multi-layer structure, and compared with a traditional epoxy plate, the device is more complex in structure, compact, more in functionality and more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of epoxy boards, in particular to an epoxy board with a multi-layer structure. Background Art

[0002] Epoxy board is commonly used in electronic and electrical insulation applications. Made from epoxy resin and fiber cloth, it exhibits excellent mechanical and electrical insulation properties. Epoxy board comes in several types, including FR-4, G-10, and G-11, with FR-4 being the most common. Epoxy board is often used as insulating structural components in motors and electrical equipment, including various switches, electrical insulation, FPC reinforcement boards, carbon film printed circuit boards, computer drilling pads, and mold jigs. It can also be used in humid environments and transformer oil, making it extremely versatile.

[0003] However, with the changes in the use environment and the improvement of usage requirements, the existing epoxy boards cannot meet the actual use. Their structure is relatively simple, such as poor impact resistance, easy cracking when subjected to external force impact, poor flame retardant performance, etc., which will affect their normal use. For this reason, we designed a multi-layer epoxy board to solve the above technical problems. Utility Model Content

[0004] The purpose of the present invention is to provide a multi-layer epoxy board to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A multi-layer epoxy board includes a first glass fiber cloth layer, a first epoxy resin layer is provided on both the upper and lower surfaces of the first glass fiber cloth layer, a second glass fiber cloth layer is provided on the surface of the first epoxy resin layer away from the first glass fiber cloth layer, a second epoxy resin layer is provided on the other side of the second glass fiber cloth layer, a metal mesh is provided on the other side of the second epoxy resin layer, a rubber layer is provided on the other side of the metal mesh, a plurality of raised strips are provided on the outer surface of the rubber layer, an upper filling bin and a lower filling bin are formed on the upper and lower sides of the second epoxy resin layer respectively, a flame retardant is provided in the upper filling bin, a sponge layer is provided in the lower filling bin, a plurality of spacing spaces formed inside the metal mesh are filled with carbon fiber layers, a plurality of elastic plates are provided inside the rubber layer, and the elastic plates correspond to the raised strips one by one.

[0007] As a preferred solution of the present invention: the length of the raised strip is equal to the width of the rubber layer, and the plurality of raised strips are distributed at equal intervals.

[0008] As a further preferred embodiment of the present invention: the second epoxy resin layer is a continuous "V"-shaped structure.

[0009] As a further preferred solution of the present invention: the elastic plate is an arc-shaped plate convex outward.

[0010] As a further preferred solution of the present invention: fixing blocks are provided on both the left and right sides of the elastic plate.

[0011] As a further preferred solution of the present invention: the elastic plate is located directly below the corresponding raised strip.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention uses the first glass fiber cloth layer, the first epoxy resin layer, the second glass fiber cloth layer, the second epoxy resin layer, the metal mesh, the rubber layer, the raised strips, the sponge layer, the flame retardant, the carbon fiber layer, the fixing block and the elastic plate in combination. When the entire plate is subjected to external impact, the raised strips bear the impact first, thereby slowing down the damage to the rubber layer, improving the wear resistance and extending the service life of the rubber layer. At the same time, when the raised strips are subjected to impact, the corresponding elastic plate is also subjected to impact and produces a certain deformation, further improving the impact resistance of the rubber layer. performance; at the same time, the metal mesh has a certain toughness, and the deformation of the metal mesh absorbs part of the impact energy, and a carbon fiber layer is provided in the metal mesh to further improve the impact resistance of the device; the flame retardant provided can improve the flame retardant performance of the entire board, which is suitable for electronic products that require high safety standards; the sponge layer provided can further absorb the energy of the impact, enhance the impact resistance, and avoid cracking; the carbon fiber layer provided can also further improve the mechanical strength and impact resistance of the entire board; the device has a multi-layer structure, which is more complex than the traditional epoxy board, but it is compact, more functional, and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0016] Figure 4 This is a schematic diagram of the structure of the metal mesh in the utility model;

[0017] Figure 5 It is a structural schematic diagram of the rubber layer in the utility model.

[0018] Wherein: 1-first glass fiber cloth layer, 2-first epoxy resin layer, 3-second glass fiber cloth layer, 4-second epoxy resin layer, 5-metal mesh, 6-rubber layer, 7-raised strip, 8-sponge layer, 9-flame retardant, 10-carbon fiber layer, 11-fixing block, 12-elastic plate. DETAILED DESCRIPTION

[0019] 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.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] See also Figure 1-5In an embodiment of the present invention, a multi-layer epoxy board includes a first glass fiber cloth layer 1, wherein a first epoxy resin layer 2 is provided on both upper and lower surfaces of the first glass fiber cloth layer 1, a second glass fiber cloth layer 3 is provided on a side of the first epoxy resin layer 2 away from the first glass fiber cloth layer 1, a second epoxy resin layer 4 is provided on the other side of the second glass fiber cloth layer 3, a metal mesh 5 is provided on the other side of the second epoxy resin layer 4, a rubber layer 6 is provided on the other side of the metal mesh 5, a plurality of raised strips 7 are provided on the outer surface of the rubber layer 6, the length of the raised strips 7 is equal to the width of the rubber layer 6, and the plurality of raised strips 7 are evenly spaced. The second epoxy resin layer 4 is a continuous "V"-shaped structure, and an upper filling chamber and a lower filling chamber are formed on the upper and lower sides of the second epoxy resin layer 4, respectively. The upper filling chamber is provided with a flame retardant 9 for improving the flame retardant performance of the entire board, which is suitable for electronic products requiring high safety standards. The lower filling chamber is provided with a sponge layer 8. When the device is subjected to external impact, the impact energy can be absorbed by the sponge layer 8, thereby reducing the impact energy. Improve impact resistance and avoid cracking. The multiple spaces formed inside the metal mesh 5 are filled with carbon fiber layers 10, which can further improve the mechanical strength and impact resistance of the entire board. A plurality of elastic plates 12 are provided inside the rubber layer 6. The elastic plates 12 correspond to the raised strips 7 one by one. The elastic plates 12 are arc-shaped plates that bulge outward, and fixed blocks 11 are provided on the left and right sides of the elastic plates 12. The elastic plates 12 are located directly below the corresponding raised strips 7. When the entire board is subjected to external impact, the raised strips 7 bear the impact first, thereby slowing down the impact. The damage to the rubber layer 6 is reduced, the wear resistance is improved, and the service life of the rubber layer 6 is extended. At the same time, when the raised strip 7 is impacted, the corresponding elastic plate 12 is impacted and deformed to a certain extent, which further improves the impact resistance of the rubber layer 6. At the same time, the metal mesh 5 has a certain toughness, and the metal mesh 5 deforms to absorb part of the impact energy, and a carbon fiber layer 10 is provided in the metal mesh 5, which further improves the impact resistance of the device. The device has a multi-layer structure. Compared with the traditional epoxy board, the structure is more complex, more functional, and more practical.

[0023] 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.

[0024] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A multi-layer epoxy board comprising a first glass fiber cloth layer (1); characterized in that: The first glass fiber cloth layer (1) is provided with a first epoxy resin layer (2) on both upper and lower surfaces, the first epoxy resin layer (2) is provided with a second glass fiber cloth layer (3) on the side away from the first glass fiber cloth layer (1), the second glass fiber cloth layer (3) is provided with a second epoxy resin layer (4) on the other side surface, the second epoxy resin layer (4) is provided with a metal mesh (5) on the other side surface, the metal mesh (5) is provided with a rubber layer (6), the outer surface of the rubber layer (6) is provided with a plurality of raised strips (7), the upper and lower sides of the second epoxy resin layer (4) are respectively formed with an upper filling bin and a lower filling bin, the upper filling bin is provided with a flame retardant (9), the lower filling bin is provided with a sponge layer (8), the plurality of spacing spaces formed inside the metal mesh (5) are filled with a carbon fiber layer (10), the rubber layer (6) is provided with a plurality of elastic plates (12), and the elastic plates (12) correspond one to one to the raised strips (7).

2. The multi-layer epoxy board according to claim 1, characterized in that: The length of the raised strip (7) is equal to the width of the rubber layer (6), and the plurality of raised strips (7) are distributed at equal intervals.

3. The multi-layer epoxy board according to claim 2, characterized in that: The second epoxy resin layer (4) is a continuous "V"-shaped structure.

4. The multi-layer epoxy board according to claim 3, characterized in that: The elastic plate (12) is an arc-shaped plate convex outward.

5. The multi-layer epoxy board according to claim 4, characterized in that: Fixed blocks (11) are provided on both the left and right sides of the elastic plate (12).

6. The multi-layer epoxy board according to claim 5, characterized in that: The elastic plate (12) is located directly below the corresponding raised strip (7).

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