CN212860669U

CN212860669U - Take car trunk carpet of acoustic properties

Info

Publication number: CN212860669U
Application number: CN202021013638.6U
Authority: CN
Inventors: 万玉峰; 金建平; 韩晶晶; 陆强; 姜海涛
Original assignee: SHANGHAI CAR CARPET PLANT
Current assignee: SHANGHAI CAR CARPET PLANT
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-04-02
Anticipated expiration: 2030-06-05

Abstract

The utility model discloses an automobile trunk carpet with acoustic performance, belonging to the field of automobile accessories, comprising a surface layer, a PHC (polystyrene foam board) layer, an acoustic layer compounded at the bottom of the PHC layer and a bottom cover layer for coating the PHC layer and the acoustic layer on the surface layer; the acoustic layer is connected with the PHC board layer through a glue layer B in a gluing mode, the bottom cover layer is connected with one surface, far away from the PHC board layer, of the acoustic layer through a glue layer C in a gluing mode, and the PHC board layer is connected with the surface layer through a glue layer A in a gluing mode; the bottom cover layer comprises a groove-shaped part and an edge part; the open position department of cell type portion, border portion are close to the one side of surface course with the PHC sheet layer is close to the one side parallel and level of surface course. This car trunk carpet quality is light, possess good syllable-dividing, inhale the performance of sound, and PHC board load capacity is big, has good temperature resistance, and the end cover adopts non-woven fabrics material to make, can compound effectively with the surface course, promotes trunk carpet structure's stability.

Description

Take car trunk carpet of acoustic properties

Technical Field

The utility model belongs to the technical field of auto-parts, concretely relates to take car trunk carpet of acoustic performance.

Background

The car trunk carpet is arranged in a trunk of a car, and mainly has the function of separating the upper space and the lower space of the trunk and has the function of containing and carrying objects.

The conventional car trunk carpet with acoustic performance comprises a fabric layer 1 ', a bottom cover layer 2 ', a glue layer A3 ', a PHC board layer 4 ', a glue layer B5 ', an acoustic layer 6 ' and a glue layer C7 '; the PHC board layer 4 'is connected with the fabric layer 1' through a glue layer A3 'in a gluing mode, and the acoustic layer 6' is connected with the PHC board layer 4 'and the bottom cover layer 2' through a glue layer B5 'and a glue layer C7' in a gluing mode; the bottom cover layer 2 'is groove-shaped, and the bottom cover layer 2' is compounded with the acoustic layer 6 'and covers the peripheral edge of the PHC plate layer 4'; however, the edge of the fabric is easy to form wavy appearance defects, the composite strength of the fabric and the PHC plate is poor, the fabric is easy to be debonded at high temperature, the fabric is seriously or even falls off, the structural stability is poor, and the service life is short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take car trunk carpet of acoustic performance to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the automobile trunk carpet with the acoustic performance comprises a surface layer, a PHC (polystyrene) plate layer, an acoustic layer compounded at the bottom of the PHC plate layer and a bottom cover layer covering the PHC plate layer and the acoustic layer on the surface layer; the acoustic layer is connected with the PHC board layer through a glue layer B in a gluing mode, the bottom cover layer is connected with one surface, far away from the PHC board layer, of the acoustic layer through a glue layer C in a gluing mode, and the PHC board layer is connected with the surface layer through a glue layer A in a gluing mode; the bottom cover layer comprises a groove-shaped part and an edge part;

one surface of the edge part close to the surface layer at the opening position of the groove-shaped part is flush with one surface of the PHC plate layer close to the surface layer;

the opening position department of cell type portion, border portion with PHC sheet layer with all pass through between the surface course glue connection of glue film A.

Preferably, the rim portion and the groove portion are integrally formed.

Preferably, the adhesive layer a and the adhesive layer B are both formed by cooling and solidifying any one of polyurethane hot melt adhesives.

Preferably, the adhesive layer B is formed by cooling and solidifying any one of polyolefin hot melt adhesives.

Preferably, the thickness of the PHC plate layer is 6-30 mm.

Preferably, the thickness of the acoustic layer is 8-25 mm.

The utility model provides a material composition as follows:

the surface layer can be made of the following materials:

the needled felt type fabric is used in an amount of 200-700 g per square meter;

the dosage of the needle-punched raised fabric is 380-750 g per square meter;

the tufted carpet fabric is used in an amount of more than 500 g/square meter.

The surface layer mainly plays a role in decoration, and the main properties of the surface layer are indexes such as color, wear resistance, light and heat aging resistance, stain resistance and the like.

The PHC board layer is made of a framework material formed by spraying, foaming and hot-pressing three materials, namely a paper core, glass fibers and PU, and mainly plays a role in bearing and supporting.

The acoustic layer can be made of the following materials:

the amount of the needled felt is 800-2500 g per square meter;

the rubber composition is prepared from EPDM rubber and a needled felt, wherein the dosage of the EPDM rubber is 1600-3200 g per square meter, and the dosage of the needled felt is 800-2500 g per square meter;

PU foam board, PP-PU, PET-PU and other novel foam materials.

The acoustic layer is mainly used for enhancing the sound insulation and absorption performance of the trunk carpet.

The bottom cover layer is made of non-woven fabrics, and the using amount of the non-woven fabrics is 250-500 g per square meter.

The bottom cover layer is used for beautifying the appearance of a product and is matched with the shape of a vehicle body; coating all functional layers except the surface layer between the bottom cover layer and the surface layer; the fastness of the hot melt adhesive between the bottom cover layer and the fabric layer is far higher than the composite fastness of the fabric and the PHC plate, and the thermal stability is good.

The dosage of the adhesive layer A and the dosage of the adhesive layer B are both 100-200 g per square meter.

The dosage of the adhesive layer C is 150-250 g/square meter.

The bottom cover layer of the suitcase carpet with the acoustic performance is provided with the edge, when the suitcase carpet with the acoustic performance is compounded with the surface layer, the PHC board layer and the bottom cover layer are glued on the surface layer together through the glue layer, the compounding area of the bottom cover layer and the surface layer is effectively increased, and therefore the compounding strength is improved.

The luggage case carpet with the acoustic performance is light in weight, has good acoustic performance, is high in PHC board loading capacity, and has good high and low temperature resistance; the bottom cover layer is made of non-woven fabric materials, and the required body shape of the bottom cover layer can be formed after heating and molding, so that the matching of the trunk carpet and the automobile body metal plate is facilitated.

Drawings

FIG. 1 is a schematic diagram of a conventional automotive trunk carpet with acoustic properties;

fig. 2 is a schematic structural diagram of a car trunk carpet with acoustic performance.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

As shown in fig. 1, the utility model provides an automobile trunk carpet with acoustic performance, which comprises a surface layer 1, a PHC board layer 4, an acoustic layer 6 compounded at the bottom of the PHC board layer 4, and a bottom cover layer 2 covering the PHC board layer 4 and the acoustic layer 6 on the surface layer 1; the acoustic layer 6 and the PHC plate layer 4 are connected through glue layers B5 in a gluing mode, the bottom cover layer 2 and one side, far away from the PHC plate layer 4, of the acoustic layer 6 are connected through glue layers C7 in a gluing mode, and the PHC plate layer 4 and the surface layer 1 are connected through glue layers A3 in a gluing mode; the bottom cap layer 2 includes a groove portion 21 and a rim portion 22;

one surface of the edge part 22 close to the surface layer 1 at the opening position of the groove-shaped part 21 is flush with one surface of the PHC plate layer 4 close to the surface layer 1;

the opening position of the groove-shaped part 21, the edge part 22 and the PHC plate layer 4 are connected with the surface layer 1 through glue layers A3 in a gluing mode.

Wherein the rim portion 22 and the groove portion 21 are integrally formed.

Wherein, the adhesive layer A3 and the adhesive layer B5 are both formed by cooling and solidifying any one of polyurethane hot melt adhesives.

Wherein, the adhesive layer B6 is formed by cooling and solidifying any one of polyolefin hot melt adhesives.

Wherein, the thickness of the PHC plate layer 4 is 6-30 mm.

Wherein, the thickness of the acoustic layer 6 is 8-25 mm.

This car trunk carpet's undercover layer 2's opening part has border 22, can increase undercover layer 2 and surface course 1's area of contact effectively, adopts glue film A3 to glue undercover layer 2 and PHC sheet layer 4 to surface course 1 on simultaneously, can improve the compound fastness between PHC sheet layer 4 and the surface course 1 effectively, and its heat stability is high, can reduce effectively to split glue, the risk that drops, improves car carpet's life.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The automobile trunk carpet with the acoustic performance comprises a surface layer (1), a PHC (polystyrene) plate layer (4), an acoustic layer (6) compounded at the bottom of the PHC plate layer (4), and a bottom cover layer (2) for coating the PHC plate layer (4) and the acoustic layer (6) on the surface layer (1); the acoustic layer (6) is connected with the PHC board layer (4) through a glue layer B (5) in a gluing mode, the base cover layer (2) is connected with one surface, far away from the PHC board layer (4), of the acoustic layer (6) through a glue layer C (7) in a gluing mode, and the PHC board layer (4) is connected with the surface layer (1) through a glue layer A (3) in a gluing mode; the method is characterized in that: the bottom cover layer (2) comprises a groove-shaped part (21) and an edge part (22);

one surface of the edge part (22) close to the surface layer (1) at the opening position of the groove-shaped part (21) is flush with one surface of the PHC board layer (4) close to the surface layer (1);

the opening position department of cell type portion (21), border portion (22) and PHC sheet layer (4) with all pass through between surface course (1) glue connection of glue film A (3).

2. The acoustically enabled vehicle trunk carpet of claim 1, wherein: the edge portion (22) and the groove portion (21) are integrally formed.

3. The acoustically enabled vehicle trunk carpet of claim 1, wherein: the adhesive layer A (3) and the adhesive layer B (5) are both formed by cooling and solidifying any one of polyurethane hot melt adhesives.

4. The acoustically enabled vehicle trunk carpet of claim 1, wherein: the adhesive layer B (5) is formed by cooling and solidifying any one of polyolefin hot melt adhesives.

5. The acoustically enabled vehicle trunk carpet of claim 1, wherein: the thickness of the PHC plate layer (4) is 6-30 mm.

6. The acoustically enabled vehicle trunk carpet of claim 1, wherein: the thickness of the acoustic layer (6) is 8-25 mm.