CN219191555U

CN219191555U - Automobile interior trimming panel

Info

Publication number: CN219191555U
Application number: CN202222873889.7U
Authority: CN
Inventors: 邓滔; 黄树庭; 郑思思
Original assignee: Zhongshan Jeme Fine Chemical Co ltd
Current assignee: Zhongshan Jeme Fine Chemical Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-06-16
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses an automobile interior trim panel, which comprises an EPP layer, a dual-cured resin layer and a high-temperature resistant structure which are sequentially laminated, wherein the dual-cured resin layer is arranged below the EPP layer, the dual-cured resin layer is a PU-UV dual-cured resin layer, the PU-UV dual-cured resin layer has good sound insulation and noise reduction performance, and the dual-cured resin layer is also provided with a sound absorption structure, so that the sound absorption performance is improved, the sound insulation and noise reduction performance of the interior trim panel is improved while the interior trim panel has the light weight characteristic, and the performance requirement of the interior trim panel on the market is more met; the EPP layer is provided with the reinforcing structure protruding towards the direction of the dual-curing resin layer, so that the strength of the EPP layer is greatly improved, and the strength of the interior trim panel is improved.

Description

Automobile interior trimming panel

Technical Field

The utility model relates to a plate, in particular to an automobile interior trim panel.

Background

The expanded polypropylene EPP is a high-crystallization polypropylene/carbon dioxide gas composite material with excellent performance, is a pure hydrocarbon prepared by taking high melt strength polypropylene as a matrix and taking carbon dioxide gas as a foaming agent under high temperature and high pressure conditions, and becomes a novel environment-friendly compression-resistant buffering heat-insulating material with the fastest growing performance at present by the unique and excellent performance. The EPP product has excellent vibration resistance and absorption performance, high recovery rate after deformation, good heat resistance, good chemical resistance, light weight and recycling. EPP products have rapidly become widely used in the automotive field since the advent of the prior art.

The roof inner decoration plate is used as one of the parts with the largest surface area in the vehicle, and needs to meet the requirements of heat insulation, sound absorption and sound insulation and protect the heads of people. Although the EPP material has obvious light weight advantage, the EPP material has insufficient sound absorption and noise reduction performances.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the lightweight automobile interior trim panel with good sound absorption and noise reduction performances.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides an automobile interior trim board, including EPP layer, dual cure resin layer and the high temperature resistant structure that stacks gradually the setting, the EPP layer is close to dual cure resin layer's one side is provided with to dual cure resin layer direction bellied additional strengthening, be equipped with in the dual cure resin layer and inhale sound structure.

The high-temperature resistant structure comprises a ceramic heat insulation layer, a polypropylene foam layer, a TPO layer, a glass fiber layer, a butyl rubber layer and a polyester fiber layer which are sequentially laminated, wherein the ceramic heat insulation layer is arranged below the dual-curing resin layer.

The reinforcing structure is one of a circular cylinder, a square cylinder and a cross cylinder.

And a groove matched with the reinforcing structure is formed in one surface of the dual-cured resin layer, which is close to the EPP layer.

The sound-absorbing structure is a plurality of sound-absorbing channels which are arranged on the double-curing resin layer, and the sound-absorbing channels are vertical channels.

The dual-curing resin layer is a PU-UV dual-curing resin layer.

The polyester fiber layer is a layered structure made by intersecting and interweaving polyester fibers.

The beneficial effects of the utility model are as follows:

1. the utility model provides an automobile interior trim panel, which comprises an EPP layer, a dual-curing resin layer and a high-temperature-resistant structure which are sequentially laminated, wherein the dual-curing resin layer is arranged below the EPP layer, the dual-curing resin layer is a PU-UV dual-curing resin layer, the PU-UV dual-curing resin layer has good sound insulation and noise reduction performance, and the dual-curing resin layer is also provided with a sound absorption structure, so that the sound absorption performance is improved, the sound insulation and noise reduction performance of the interior trim panel is improved while the interior trim panel has the light weight characteristic, and the performance requirement of the interior trim panel on the market is more met.

2. The EPP layer is provided with the reinforcing structure protruding towards the direction of the dual-curing resin layer, so that the strength of the EPP layer is greatly improved, and the strength of the interior trim panel is improved.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the present utility model.

Detailed Description

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, in the description of the present utility model, the meaning of "a plurality", "a number" is two or more, unless explicitly defined otherwise.

Referring to fig. 1, an automotive interior panel comprises an EPP layer 1, a dual-cured resin layer 2 and a high temperature resistant structure 3 which are sequentially stacked, wherein one surface of the EPP layer 1, which is close to the dual-cured resin layer 2, is provided with a reinforcing structure 11 protruding towards the dual-cured resin layer 2, and a sound absorbing structure 21 is arranged in the dual-cured resin layer 2.

This embodiment provides an automotive interior board, including EPP layer 1, dual cure resin layer 2 and the high temperature resistant structure 3 of laminating the setting in proper order, this embodiment is equipped with dual cure resin layer 2 in EPP layer 1's below, dual cure resin layer is PU-UV dual cure resin layer, PU-UV dual cure resin layer has better sound insulation and noise reduction performance, and still is equipped with the sound absorbing structure on dual cure resin layer 2, has improved the sound absorbing performance for the interior board has the sound insulation and noise reduction performance of interior board when having lightweight characteristics, more satisfies the performance demand to interior board on the market.

In this embodiment, the reinforcing structure 11 protruding toward the direction of the dual-cured resin layer 2 is further disposed on the EPP layer 1, so that the strength of the EPP layer 1 is greatly increased, and the strength of the interior trim panel is improved.

Besides the characteristic of light weight, the EPP layer 1 is also superior to the dual-curing resin layer 2 in heat preservation performance, smell and the like, but the sound absorption performance is inferior to the dual-curing resin layer 2, so that the dual-curing resin layer 2 is arranged below the EPP layer, the defect of the EPP layer 1 in the sound absorption performance can be well overcome, and the inner decorative plate can meet the requirements on the market.

The high temperature resistant structure 3 comprises a ceramic heat insulation layer 31, a polypropylene foam layer 32, a TPO layer 33, a glass fiber layer 34, a butyl rubber layer 35 and a polyester fiber layer 36 which are sequentially laminated, wherein the ceramic heat insulation layer 31 is arranged below the dual-curing resin layer 2. Besides good sound insulation and noise reduction performance, the automobile interior trim panel also needs to have good flame retardant and high temperature resistance performance, and the ceramic heat insulation layer 31, the polypropylene foam layer 32, the glass fiber layer 34 and the polyester fiber layer 36 all have good flame retardant and high temperature resistance performance, and are arranged at intervals in a three-layer structure, wherein the TPO layer 33 with good elasticity and shock resistance performance and the butyl rubber layer 35 with good sound insulation performance are clamped, and the overall performance of the interior trim panel is greatly improved.

The reinforcing structure 11 is one of a circular cylinder, a square cylinder and a cross cylinder, other shapes can be set according to the requirement, and the reinforcing structure 11 of the cross cylinder can be embedded with the dual-curing resin layer 2 more firmly, so that the reinforcing effect of the interior trim panel is better.

The surface of the dual-cured resin layer 2, which is close to the EPP layer 1, is provided with a groove 22 matched with the reinforcing structure 11, so that the embedding degree of the reinforcing structure 11 and the dual-cured resin layer 2 is better, and the reinforcing effect is better.

The sound-absorbing structure 21 is a plurality of sound-absorbing channels 23 which are arranged on the double-curing resin layer 2, the sound-absorbing channels 23 are vertical channels, the sound-absorbing structure 21 enables the sound-absorbing effect of the interior trim panel to be better, and the defect of the EPP layer 1 in sound-absorbing performance is overcome.

The double-cured resin layer 2 is a PU-UV double-cured resin layer, and the PU-UV double-cured resin layer has good weather resistance and scratch resistance besides good sound insulation and noise reduction performances.

The polyester fiber layer 36 is a layered structure made of polyester fibers by cross interweaving, so that a better auxiliary reinforcing effect is formed, and the polyester fiber layer 36 of the cross interweaved channels has better wear resistance, strength and tensile properties, so that the interior trim panel is more durable in daily use.

The above embodiments do not limit the protection scope of the utility model, and those skilled in the art can make equivalent modifications and variations without departing from the whole inventive concept, and they still fall within the scope of the utility model.

Claims

1. The utility model provides an automobile interior trim board, its characterized in that is including EPP layer (1), dual curing resin layer (2) and the high temperature resistant structure (3) of laminating in proper order setting, EPP layer (1) is close to one side of dual curing resin layer (2) is provided with to dual curing resin layer (2) bellied additional strengthening (11) of direction, be equipped with in dual curing resin layer (2) and inhale sound structure (21).

2. The automotive interior panel according to claim 1, characterized in that the high temperature resistant structure (3) comprises a ceramic heat insulating layer (31), a polypropylene foam layer (32), a TPO layer (33), a glass fiber layer (34), a butyl rubber layer (35) and a polyester fiber layer (36) which are laminated in this order, and the ceramic heat insulating layer (31) is disposed below the dual-cure resin layer (2).

3. The automotive interior panel according to claim 1 or 2, characterized in that the reinforcing structure (11) is one of a circular cylinder, a square cylinder, a cross-shaped cylinder.

4. A vehicle interior trim panel according to claim 3, characterized in that a slot (22) matching with the reinforcing structure (11) is provided on a side of the dual-cure resin layer (2) close to the EPP layer (1).

5. The automotive interior panel according to claim 1 or 2, characterized in that the sound absorbing structure (21) is a plurality of sound absorbing channels (23) arranged on the dual cured resin layer (2), and the sound absorbing channels (23) are vertical channels.

6. The automotive interior panel according to claim 1 or 2, characterized in that the dual-cure resin layer (2) is a PU-UV dual-cure resin layer.

7. The automotive interior panel according to claim 2, characterized in that the polyester fiber layer (36) is a layered structure made of polyester fibers interleaved.