Lightweight high-strength carpet adhesive board

Abstract

The utility model discloses a kind of light high-strength carpet adhesive plate, it is related to automobile carpet technical field, including bottom layer, electromagnetic shielding layer and buffer energy-absorbing layer, bottom layer is fixedly connected in the bottom surface of electromagnetic shielding layer, buffer energy-absorbing layer is fixedly connected in the top surface of electromagnetic shielding layer, bottom layer includes composite substrate, mounting groove, fixed hole and openwork slot, mounting groove is set up in the top surface four corners of composite substrate, fixed hole is set up in the inner wall of mounting groove, openwork slot is set up in the bottom surface of composite substrate, electromagnetic shielding layer includes sticky layer, POE foaming layer and conductive layer, sticky layer is fixedly connected in the top surface of POE foaming layer, the utility model is reduced material consumption by composite substrate bottom surface openwork slot, while improving the bending deformation resistance of substrate, so that the utility model has the effect of light high-strength, by double-layer conductive layer embedding inside POE foaming layer realizes electromagnetic shielding structure, improve the shielding effect of the utility model in car.

Description

Technical Field

[0001] This utility model relates to the field of automotive carpet technology, and in particular to a lightweight, high-strength carpet adhesive sheet. Background Technology

[0002] Carpet backing is a key functional component in the interior of new energy vehicles. As the bottom substrate of the car carpet, it provides uniform load-bearing capacity, withstands dynamic loads such as passengers stepping on it and luggage being placed, and prevents the carpet from denting or deforming.

[0003] However, in the existing technology, the existing carpet adhesive sheets have poor tensile strength when using lightweight materials, making it difficult to support the dynamic load inside the vehicle. In addition, it is difficult to effectively isolate and shield the broadband electromagnetic interference of the motor and electronic control system in new energy vehicles. Utility Model Content

[0004] The purpose of this invention is to solve the problems that existing carpet adhesive sheets, when using lightweight materials, have poor tensile strength, making it difficult to support dynamic loads inside the vehicle, and are difficult to effectively isolate and shield against broadband electromagnetic interference from motors and electronic control systems in new energy vehicles. Therefore, a lightweight and high-strength carpet adhesive sheet is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lightweight and high-strength carpet adhesive board, comprising a bottom layer, an electromagnetic shielding layer, and a buffer energy-absorbing layer. The bottom layer is fixedly connected to the bottom surface of the electromagnetic shielding layer, and the buffer energy-absorbing layer is fixedly connected to the top surface of the electromagnetic shielding layer. The bottom layer includes a composite substrate, a mounting groove, a fixing hole, and a hollow groove. The mounting groove is formed at the four corners of the top surface of the composite substrate, the fixing hole penetrates through the inner wall of the mounting groove, and the hollow groove is formed on the bottom surface of the composite substrate. The electromagnetic shielding layer includes an adhesive layer, a POE foam layer, and a conductive layer. The adhesive layer is fixedly connected to the top surface of the POE foam layer, and the conductive layer has two layers, both of which are embedded inside the POE foam layer.

[0006] Preferably, the bottom surface of the adhesive layer is fixedly connected to the top surface of the composite substrate.

[0007] Preferably, the buffer energy-absorbing layer includes an anti-corrosion coating, a flame-retardant surface layer, and a sound-absorbing and noise-reducing layer, with the anti-corrosion coating applied to the top surface of the flame-retardant surface layer.

[0008] Preferably, the flame-retardant surface layer is coated on the top surface of the sound-absorbing and noise-reducing layer.

[0009] Preferably, the bottom surface of the sound-absorbing and noise-reducing layer is fixedly connected to the top surface of the adhesive layer.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. In this utility model, the amount of material used is reduced by opening a hollow groove on the bottom surface of the composite substrate, while improving the substrate's resistance to bending deformation, so that this utility model has the effect of being lightweight and high-strength. The electromagnetic shielding structure is achieved by embedding a double conductive layer inside the POE foam layer, thereby improving the shielding effect of this utility model in the vehicle.

[0012] 2. In this utility model, the sound-absorbing and noise-reducing layer effectively absorbs high-frequency noise and low-frequency vibration, greatly improving the noise reduction effect of this utility model. The flame-retardant surface layer enhances the flame-retardant capability of this utility model. The anti-corrosion coating enhances the anti-corrosion capability of this utility model and reduces dust and water stain adhesion, improving the surface cleanliness after long-term use. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of a lightweight, high-strength carpet adhesive board is provided for this utility model.

[0014] Figure 2 A schematic diagram of the bottom structure of a lightweight, high-strength carpet adhesive board is provided for this utility model.

[0015] Figure 3 This utility model provides a structural schematic diagram of a lightweight, high-strength carpet adhesive board electromagnetic shielding layer.

[0016] Figure 4 This utility model presents a structural schematic diagram of a lightweight, high-strength carpet adhesive board buffer and energy-absorbing layer.

[0017] Legend: 1. Bottom layer; 11. Composite substrate; 12. Mounting groove; 13. Fixing hole; 14. Hollowed-out groove; 2. Electromagnetic shielding layer; 21. Adhesive layer; 22. POE foam layer; 23. Conductive layer; 3. Buffer energy absorption layer; 31. Anti-corrosion coating; 32. Flame retardant surface layer; 33. Sound absorption and noise reduction layer. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example: Figure 1 - Figure 4As shown, this utility model provides a lightweight, high-strength carpet adhesive board, comprising a bottom layer 1, an electromagnetic shielding layer 2, and a buffer energy-absorbing layer 3. The bottom layer 1 is fixedly connected to the bottom surface of the electromagnetic shielding layer 2, and the buffer energy-absorbing layer 3 is fixedly connected to the top surface of the electromagnetic shielding layer 2. The bottom layer 1 includes a composite substrate 11, a mounting groove 12, fixing holes 13, and a hollow groove 14. The composite substrate 11 is made of acrylic resin composite material reinforced with 45-55mm long glass fibers. The mounting groove 12 is formed at the four corners of the top surface of the composite substrate 11, the fixing holes 13 penetrate through the inner wall of the mounting groove 12, and the hollow groove 14 is formed on the bottom surface of the composite substrate 11. The electromagnetic shielding layer 2 includes an adhesive layer 21, a POE foam layer 22, and a conductive layer 23. The adhesive layer 21 is fixedly connected to the top surface of the POE foam layer 22. The adhesive layer 21 is made of water. The adhesive is a polyurethane adhesive. The conductive layer 23 has two layers. The conductive layer 23 is a graphene-copper-nickel composite conductive film with a thickness of 50-100nm. Both conductive layers 23 are embedded inside the POE foam layer 22. The bottom surface of the adhesive layer 21 is fixedly connected to the top surface of the composite substrate 11. The buffer energy absorption layer 3 includes an anti-corrosion coating 31, a flame-retardant surface layer 32, and a sound-absorbing and noise-reducing layer 33. The anti-corrosion coating 31 is coated on the top surface of the flame-retardant surface layer 32. The anti-corrosion coating 31 is a polytetrafluoroethylene (PTFE) nano-coating formed into a superhydrophobic surface through chemical vapor deposition. The flame-retardant surface layer 32 is coated on the top surface of the sound-absorbing and noise-reducing layer 33. The bottom surface of the sound-absorbing and noise-reducing layer 33 is fixedly connected to the top surface of the adhesive layer 21. The sound-absorbing and noise-reducing layer 33 adopts a gradient pore size foaming structure and the material is PU polyurethane modified foam.

[0021] The specific settings and functions of this embodiment are described in detail below. The mounting groove 12 and fixing hole 13 are used to connect the vehicle body positioning buckle with bolts for secure fastening. The mounting groove 12 conceals the connecting bolts. A hollowed-out groove 14 on the bottom surface of the composite substrate 11 reduces material usage while improving the substrate's resistance to bending deformation, resulting in a lightweight and high-strength design. An electromagnetic shielding structure is achieved by embedding a double conductive layer 23 inside the POE foam layer 22, improving the shielding effect inside the vehicle. An adhesive layer 21 ensures strong adhesion between the bottom layer 1 and the electromagnetic shielding layer 2, preventing interlayer peeling, eliminating odor release, and providing a wide temperature range suitable for alternating high and low temperature environments. A sound-absorbing and noise-reducing layer 33 effectively absorbs high-frequency noise and low-frequency vibrations, significantly improving the noise reduction effect. A flame-retardant surface layer 32 enhances the flame-retardant capability of the design. An anti-corrosion coating 31 further enhances the corrosion resistance of the design and reduces dust and water stain adhesion, improving surface cleanliness over long-term use.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A lightweight, high-strength carpet adhesive board, characterized in that: The electromagnetic shielding layer (2) includes a bottom layer (1), an electromagnetic shielding layer (2), and a buffer energy absorption layer (3). The bottom layer (1) is fixedly connected to the bottom surface of the electromagnetic shielding layer (2), and the buffer energy absorption layer (3) is fixedly connected to the top surface of the electromagnetic shielding layer (2). The bottom layer (1) includes a composite substrate (11), a mounting groove (12), a fixing hole (13), and a hollow groove (14). The mounting groove (12) is opened at the four corners of the top surface of the composite substrate (11). The fixing hole (13) is opened through the inner wall of the mounting groove (12). The hollow groove (14) is opened on the bottom surface of the composite substrate (11). The electromagnetic shielding layer (2) includes an adhesive layer (21), a POE foam layer (22), and a conductive layer (23). The adhesive layer (21) is fixedly connected to the top surface of the POE foam layer (22). The conductive layer (23) has two layers, and both conductive layers (23) are embedded inside the POE foam layer (22).

2. The lightweight, high-strength carpet adhesive board according to claim 1, characterized in that: The bottom surface of the adhesive layer (21) is fixedly connected to the top surface of the composite substrate (11).

3. The lightweight, high-strength carpet adhesive board according to claim 1, characterized in that: The buffer energy absorption layer (3) includes an anti-corrosion coating (31), a flame-retardant surface layer (32), and a sound-absorbing and noise-reducing layer (33). The anti-corrosion coating (31) is applied to the top surface of the flame-retardant surface layer (32).

4. The lightweight, high-strength carpet adhesive board according to claim 3, characterized in that: A flame-retardant top layer (32) is coated on the top surface of the sound-absorbing and noise-reducing layer (33).

5. The lightweight, high-strength carpet adhesive board according to claim 4, characterized in that: The bottom surface of the sound-absorbing and noise-reducing layer (33) is fixedly connected to the top surface of the adhesive layer (21).

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