Multi-layer automobile front wall baffle liner

Abstract

The utility model relates to the technical field of automobile liners, and discloses a multi-layer automobile front wall baffle liner which comprises a front wall baffle liner body, the front wall baffle liner body is made of a first PET sound-absorbing cotton layer, a PET felt layer and a second PET sound-absorbing cotton layer, and PET non-woven fabric layers are arranged on the side wall faces, away from each other, of the first PET sound-absorbing cotton layer and the second PET sound-absorbing cotton layer. The first PET sound-absorbing cotton layer, the PET felt layer, the second PET sound-absorbing cotton layer and the PET non-woven fabric layer are heated and softened and then are subjected to cold-pressing punching forming, the product material structure is changed, so that the product has remarkable heat insulation and noise reduction effects, the first PET sound-absorbing cotton layer, the second PET sound-absorbing cotton layer and the PET felt layer are arranged to increase the sound-absorbing and sound-insulating effects, the comfort is improved, and the production cost is reduced. By arranging the PET non-woven fabric layer, the flame retardance and durability of the product are improved, the product is processed in different working procedures, the size is more stable in the processing process, the structure is simple, processing is easy, and the production cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile gasket technical field especially, it relates to a multilayer formula automobile front wall baffle gasket. BACKGROUND

[0002] With the increasing development of automobile industry, no matter is the customer or host factory has higher and more stringent standard to the quality of each aspect of automobile. Under the premise of more and more automobile function, the requirement of safety, comfort, life of automobile is continuously improved. The instrument desk system is the important part of whole vehicle, and the front wall baffle gasket among them is the important component, therefore the front wall baffle gasket is also indispensable.

[0003] With the continuous development of present technology, material and performance are also various, and the automobile front wall baffle gasket of polyester or polypropylene fiber nonwoven fabric has good wear resistance, elasticity, the automobile front wall baffle gasket of rubber material has good heat resistance, waterproofness and anti-aging, but, the noise in engine compartment can be transmitted to the front wall baffle gasket, and the noise interference is caused to the cab.

[0004] In order to reduce the influence of high temperature, noise and vibration in engine compartment, the application provides a multilayer formula automobile front wall baffle gasket. UTILITY MODEL CONTENTS

[0005] In view of the deficiency of prior art, the utility model provides a multilayer formula automobile front wall baffle gasket, and solves the problem in the background art.

[0006] In order to realize the above object, the utility model adopts the following technical scheme:

[0007] A multilayer formula automobile front wall baffle gasket, it includes: front wall baffle gasket, a plurality of installation holes are set up between the front and back two side wall surfaces of front wall baffle gasket, the material of front wall baffle gasket includes first PET sound-absorbing cotton layer, PET felt layer and second PET sound-absorbing cotton layer, the side wall surface of first PET sound-absorbing cotton layer and second PET sound-absorbing cotton layer away from each other is provided with PET non-woven fabric layer, and front wall baffle gasket is formed by cold pressing and punching of multilayer material.

[0008] According to the multilayer formula automobile front wall baffle gasket, the first PET sound-absorbing cotton layer is stacked above the PET felt layer, and the PET felt layer is stacked above the second PET sound-absorbing cotton layer.

[0009] According to the multilayer formula automobile front wall baffle gasket, the PET non-woven fabric layer is located above the first PET sound-absorbing cotton layer and below the second PET sound-absorbing cotton layer, respectively, the multilayer material after stacking is heated to 250 DEG C softening and put into a cold pressing mold for punching.

[0010] The raw materials of the first PET sound-absorbing cotton layer, the PET felt layer, the second PET sound-absorbing cotton layer and the PET non-woven fabric layer are PET.

[0011] The utility model provides a kind of multi-layer automobile front wall baffle liner.It has the following beneficial effects:

[0012] (1) the first PET sound-absorbing cotton layer, PET felt layer, second PET sound-absorbing cotton layer and PET non-woven fabric layer are cold-pressed and punched into shape after being heated and softened, by changing the structure of product material, it has significant heat insulation, noise reduction, the first PET sound-absorbing cotton layer, second PET sound-absorbing cotton layer and PET felt layer are set to increase sound absorption and sound insulation, increase comfort, by setting PET non-woven fabric layer, the product's flame resistance and durability are improved, the product of the utility model is processed in sequence, so that it is more stable in size during processing, and it is simple in structure, easy to process and low in production cost.

[0013] (2) the first PET sound-absorbing cotton layer is stacked above the PET felt layer, the PET felt layer is stacked above the second PET sound-absorbing cotton layer, and the two PET non-woven fabric layers are respectively placed on the side away from each other of the first PET sound-absorbing cotton layer and the second PET sound-absorbing cotton layer, the multiple layers of materials are connected by high-temperature softening, and are punched into shape in the cold-pressing die, the product is simple to process and stable in size, the product plays a good heat-insulating, noise-reducing, sound-absorbing and sound-insulating role for cockpit, and is cheap and easy to install.

[0014] (3) the product meets the requirement of lightweight of new energy vehicle, and achieves the function of absorbing and isolating external noise through multiple layers of different structure of fiber structure. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 it is the product three-dimensional structure schematic view of the utility model a kind of multi-layer automobile front wall baffle liner;

[0016] Fig. 2 it is the material layer structure schematic view of the utility model a kind of multi-layer automobile front wall baffle liner.

[0017] LEGEND:

[0018] 20, front wall baffle liner;21, first PET sound-absorbing cotton layer;22, PET felt layer;23, second PET sound-absorbing cotton layer;24, PET non-woven fabric layer. DETAILED DESCRIPTION

[0019] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0020] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0022] like Figs. 1-2 As shown: A multi-layer automotive front bulkhead liner includes: a front bulkhead liner 20, with multiple mounting holes extending through between the front and rear side walls of the front bulkhead liner 20. The material of the front bulkhead liner 20 includes a first PET sound-absorbing cotton layer 21, a PET felt layer 22, and a second PET sound-absorbing cotton layer 23. A PET non-woven fabric layer 24 is provided on the side wall of the first PET sound-absorbing cotton layer 21 and the second PET sound-absorbing cotton layer 23 that are far apart from each other. The front bulkhead liner 20 is formed by cold pressing and stamping of multi-layer materials.

[0023] Specifically, this application involves heating and softening the first PET sound-absorbing cotton layer 21, the PET felt layer 22, the second PET sound-absorbing cotton layer 23, and the PET non-woven fabric layer 24, followed by cold pressing and die-cutting. By altering the product's material structure, it achieves significant heat insulation and noise reduction. The first PET sound-absorbing cotton layer 21, the second PET sound-absorbing cotton layer 23, and the PET felt layer 22 enhance sound absorption and insulation, increasing comfort. The PET non-woven fabric layer 24 improves the product's flame retardancy and durability. The product of this utility model is processed in multiple stages, resulting in more stable dimensions during processing. Furthermore, it has a simple structure, is easy to process, and has low production costs.

[0024] The first PET sound-absorbing cotton layer 21 is stacked above the PET felt layer 22, and the PET felt layer 22 is stacked above the second PET sound-absorbing cotton layer 23. The PET non-woven fabric layers 24 are respectively located above the first PET sound-absorbing cotton layer 21 and below the second PET sound-absorbing cotton layer 23. The stacked multi-layer material is heated to 250 DEG C to soften and is put into a cold pressing mold for punching. The raw materials of the first PET sound-absorbing cotton layer 21, the PET felt layer 22, the second PET sound-absorbing cotton layer 23 and the PET non-woven fabric layers 24 are all PET.

[0025] Specifically, by stacking the first PET sound-absorbing cotton layer 21 above the PET felt layer 22, stacking the PET felt layer 22 above the second PET sound-absorbing cotton layer 23, and placing the two PET non-woven fabric layers 24 on the sides away from each other of the first PET sound-absorbing cotton layer 21 and the second PET sound-absorbing cotton layer 23, the multi-layer material is connected by high-temperature softening, and is punched and formed in the cold pressing mold. The product is simple to process, stable in size, has good heat insulation, noise reduction, sound absorption and sound insulation effects on the cockpit, is cheap in cost and is convenient to install.

[0026] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. The skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model.

Claims

1. A multi-layered dash panel gasket for a vehicle, comprising a dash panel gasket (20) having a plurality of mounting holes formed through between front and rear side wall surfaces of the dash panel gasket (20), characterized in that: The material of the front wall baffle pad (20) comprises a first PET sound-absorbing cotton layer (21), a PET felt layer (22) and a second PET sound-absorbing cotton layer (23), the side walls of the first PET sound-absorbing cotton layer (21) and the second PET sound-absorbing cotton layer (23) away from each other are respectively provided with a PET non-woven fabric layer (24), and the front wall baffle pad (20) is formed by cold pressing and punching of multiple layers of materials.

2. The multi-layer automotive kick panel gasket of claim 1, wherein: The first PET sound-absorbing cotton layer (21) is stacked above the PET felt layer (22), and the PET felt layer (22) is stacked above the second PET sound-absorbing cotton layer (23).

3. The multi-layer automotive kick panel gasket of claim 1, wherein: The PET non-woven fabric layers (24) are respectively located above the first PET sound-absorbing cotton layer (21) and below the second PET sound-absorbing cotton layer (23), the multiple layers of materials after stacking are heated to (250) DEG C to be softened and then put into a cold pressing mold for punching.

4. The multi-layer automotive kick panel gasket of claim 1, wherein: The raw materials of the first PET sound-absorbing cotton layer (21), the PET felt layer (22), the second PET sound-absorbing cotton layer (23) and the PET non-woven fabric layer (24) are all PET.

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