CN213384114U

CN213384114U - EPP (expanded polypropylene) coating-molded heat-insulating automobile ceiling

Info

Publication number: CN213384114U
Application number: CN202022132512.7U
Authority: CN
Inventors: 王泽云; 高国明; 杨明; 潘建民; 唐惠明; 吴敏; 郑彩彩
Original assignee: Yixing Taiyu Automobile Parts Co ltd
Current assignee: Yixing Taiyu Automobile Parts Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-06-08
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses an EPP over-molding's adiabatic car roof. The heat insulation layer, the noise insulation layer, the EPP coating layer and the shell are symmetrically arranged on two sides of the substrate; two groups of heat insulation layers, noise insulation layers and EPP coating layers are symmetrically arranged on two sides of the substrate, so that the heat insulation performance of the automobile roof can be improved, the change of the temperature in the automobile, which is influenced by the change of the external environment, is reduced, and the comfort level in riding is improved; the carbon fiber plate with excellent flexibility is used as the substrate, and the elastic balls are arranged in the substrate, so that the external force applied to the automobile ceiling can be rebounded, and the integral deformation of each external plate layer during bending is prevented, so that the automobile ceiling is prevented from collapsing; connect the anchor frame through setting up, can improve the mechanical strength of car roof, and connect and fix and distribute on the frame and have the cavity, carry out the lock joint through the joint groove of cavity bottom and the lock joint piece that corresponds, increased the fastness of connecting between each layer, improve car roof's whole mechanical strength.

Description

EPP (expanded polypropylene) coating-molded heat-insulating automobile ceiling

Technical Field

The utility model relates to the technical field of auto-parts, concretely relates to EPP over-molding's adiabatic car roof.

Background

Automobiles have become more and more important vehicles for people to travel frequently, and the requirements on the performance and the appearance of the automobiles are higher and higher. The traditional automobile interior parts have great improvement on the appearance aesthetic degree, but the requirements on the specific use value are still insufficient, for example, the automobile ceiling is not good enough in the aspect of heat insulation.

The automobile ceiling is an important component of the whole automobile interior trim, and the main function of the automobile ceiling is to improve the decoration of the interior of the automobile; the heat insulation effect with the outside of the vehicle is improved; the noise in the vehicle is reduced, and the sound absorption effect is improved; the riding comfort and the safety of passengers are improved. In the conventional automobile ceiling, a fibrilia plate is baked and then molded with needle-punched non-woven fabric in a mold. Such a ceiling has the advantage of good rigidity, but has the disadvantage of poor thermal insulation. The acoustic performance is poor, the VOC performance is poor, and the requirement of passengers in the automobile on the driving comfort level can not be met.

Chinese utility model patent of application number cn201821547287.x discloses an interior trim part of automobile ceiling, including base plate 1, be equipped with one deck insulating layer 2 in base plate 1's both sides, it has non-woven fabrics layer 5 to bond on insulating layer 2, bonds through polyurethane adhesive between base plate 1 and the insulating layer 2 and forms, is equipped with back up coat 4 between sound absorbing layer 3 and non-woven fabrics layer 5, and back up coat 4 is made by the plastics honeycomb panel.

Although the automobile ceiling can have the performance of heat insulation and noise insulation, the reinforcing layer 4 is arranged between the sound absorption layer 3 and the non-woven fabric layer 5, the base plate 1 and the heat insulation layer 2 are only bonded through the polyurethane adhesive, the connection firmness is low, the whole mechanical degree is low, the flexibility of the base plate 1 is poor, and the whole automobile ceiling is easy to deform when the layers outside the base plate are bent due to external force, so that the automobile ceiling is easy to collapse.

SUMMERY OF THE UTILITY MODEL

To the problem that exists, the utility model provides an isolated heat and noise, mechanical strength are high and each layer is connected firm EPP coating forming's adiabatic car roof.

The technical scheme of the utility model is that: an EPP (expanded polypropylene) coating-molded heat-insulating automobile ceiling comprises a substrate, heat insulating layers symmetrically arranged on two sides of the substrate, noise insulating layers respectively arranged on the outer walls of the two heat insulating layers, EPP coating layers coated on the outer walls of the two noise insulating layers, and a shell coated on the outer layers of the EPP coating layers;

the connection reinforcing frame with the heat insulation adhesive is adhered to each other through double faces between the base plate and the heat insulation layer, between the heat insulation layer and the noise insulation layer and between the noise insulation layer and the EPP coating layer, the side wall of the connection reinforcing frame is provided with a plurality of cavities, plugging plates are arranged in the cavities, the plugging plates divide the cavities into an upper part and a lower part, the upper parts of the cavities are closed vacuum cavities, the lower parts of the cavities are clamping grooves, the connection reinforcing frame is arranged between the layers, the mechanical strength of an automobile ceiling can be improved, meanwhile, the connection reinforcing frame can well conduct heat insulation due to the fact that the corresponding vacuum cavities are in a vacuum state, and therefore the effect of keeping the temperature in the automobile is achieved.

Further, base plate, heat insulation layer, separate noise layer and EPP coating lateral wall all be equipped with a plurality of lock joint pieces of joint groove one-to-one through will connecting each joint groove lock joint on the reinforcing frame in the lock joint piece that corresponds, bond each closure plate bottom and lock joint piece through adiabatic adhesive, increased the fastness of connecting between each base plate, heat insulation layer, separate noise layer and the EPP coating, improve car roof's whole mechanical strength.

Further, every joint groove bottom periphery is equipped with the adhesion plate, the adhesion plate passes through adiabatic adhesive and each lock joint piece peripheral connection, increases the bonding area between each connection reinforcement frame and base plate, heat insulation layer, the layer of making an uproar and the EPP coating through the adhesion plate to increase connection stability.

Furthermore, each vacuum cavity inner wall is provided with a gas suction layer, a getter is placed in each gas suction layer, residual gas in the vacuum cavity can be adsorbed through the gas suction layers attached to the vacuum cavity inner walls, the vacuum state of the vacuum cavity is kept, and therefore the heat insulation effect is guaranteed.

Further, the base plate adopts carbon fiber plate and inside to be equipped with built-in chamber, built-in intracavity is equipped with a plurality of elastic balls, and carbon fiber plate possesses better pliability, and simultaneously, the rethread elastic ball props the base plate, prevents that each outside sheet layer from taking place holistic deformation when the bending to the car roof who causes sinks.

When the heat insulation automobile ceiling is used, the carbon fiber plate with excellent flexibility is arranged as the substrate, the elastic ball is arranged in the substrate, the external force applied to the automobile ceiling can be rebounded, the heat insulation layers are symmetrically arranged on the two sides of the substrate, so that the circulation of the internal heat and the external heat is avoided, the heat insulation effect is achieved, meanwhile, the noise insulation layers are symmetrically arranged on the two sides of the heat insulation layers, the external noise can be isolated, meanwhile, the EPP coating layers coated on the outer walls of the two noise insulation layers are compression-resistant buffering heat insulation materials, the heat insulation effect is achieved together with the heat insulation layers, the substrate is achieved by buckling the clamping grooves outside the corresponding clamping blocks, the heat insulation layers, the noise insulation layers and the EPP coating layers are mutually connected, the overall mechanical strength is increased, meanwhile, the bonding plates are peripherally connected with the peripheries of the clamping blocks through the heat insulation adhesive agent on the bottom, and the function of increasing the connecting force between the layers is achieved.

Compared with the prior art, the utility model discloses beneficial effect does: the utility model provides an EPP coating-molded heat-insulating automobile ceiling, which can improve the heat-insulating property of the automobile ceiling, reduce the temperature change in the automobile caused by the change of the external environment and improve the comfort level when the automobile is taken by symmetrically arranging two groups of heat-insulating layers, noise-insulating layers and EPP coating layers on two sides of a substrate; the carbon fiber plate with excellent flexibility is used as the substrate, and the elastic balls are arranged in the substrate, so that the external force applied to the automobile ceiling can be rebounded, and the integral deformation of each external plate layer during bending is prevented, so that the automobile ceiling is prevented from collapsing; the connecting and reinforcing frames are respectively arranged among the base plate, the heat insulating layer, the noise insulating layer and the EPP coating layer, so that the mechanical strength of the automobile roof can be improved, the cavities are distributed on the connecting and reinforcing frames, and the clamping grooves at the bottom ends of the cavities are buckled with the corresponding buckling blocks, so that the connection firmness among the base plates, the heat insulating layer, the noise insulating layer and the EPP coating layer is improved, and the integral mechanical strength of the automobile roof is improved; the utility model has the advantages of isolated heat and noise, mechanical strength are high and each layer is connected firmly, are fit for promoting in a large number.

Drawings

FIG. 1 is a schematic view of a part of the structure of the present invention;

fig. 2 is a schematic view of a part of the structure of the fastening block on the substrate;

fig. 3 is an enlarged view of a portion a in fig. 2 of the present invention.

The device comprises a substrate 1, a built-in cavity 10, an elastic ball 100, a heat insulating layer 2, a noise insulating layer 3, an EPP coating layer 4, a shell 5, a connecting reinforcing frame 6, a cavity 60, a blocking plate 600, a vacuum cavity 601, a clamping groove 602, a sticking plate 603, an air suction layer 604 and a buckling block 7.

Detailed Description

Example (b): the EPP-coated heat-insulating automobile ceiling shown in FIG. 1 comprises a substrate 1, heat-insulating layers 2 symmetrically arranged at two sides of the substrate 1, noise-insulating layers 3 respectively arranged at the outer walls of the two heat-insulating layers 2, an EPP coating layer 4 coated at the outer walls of the two noise-insulating layers 3, and a shell 5 coated at the outer layer of the EPP coating layer 4;

base plate 1 adopts carbon fiber plate and inside to be equipped with built-in chamber 10, is equipped with 4 elastic ball 100 in the built-in chamber 10, and carbon fiber plate possesses better pliability, and simultaneously, rethread elastic ball 100 props base plate 1, prevents that outside each sheet layer from taking place holistic deformation when the bending to the car roof who causes sinks.

As shown in fig. 2 and 3, the substrate 1 and the heat insulating layer 2, the heat insulating layer 2 and the noise insulating layer 3, and the noise insulating layer 3 and the EPP coating layer 4 are bonded to each other by a connecting reinforcing frame 6 having a heat insulating adhesive on both sides, 16 cavities 60 are formed on the side wall of the connecting reinforcing frame 6, a sealing plate 600 is disposed in each cavity 60, the sealing plate 600 divides the cavity 60 into an upper part and a lower part, the upper part is a closed vacuum cavity 601, the lower part is a clamping groove 602, the mechanical strength of the car roof can be improved by disposing the connecting reinforcing frame 6 between the layers, meanwhile, since the corresponding vacuum cavities 601 on the connecting reinforcing frame 6 are in a vacuum state, the heat conduction can be better insulated, so as to achieve the effect of keeping the temperature in the car, an air suction layer 604 is disposed on the inner wall of each vacuum cavity 601, a getter is disposed in the air suction layer 604, the residual gas in the vacuum cavity can be adsorbed by the air suction layer 604, the vacuum chamber 601 is kept in a vacuum state, so that the heat insulation effect is ensured, wherein the getter adopts commercially available zirconium vanadium iron;

the side walls of the base plate 1, the heat insulating layer 2, the noise insulating layer 3 and the EPP coating layer 4 are respectively provided with 16 buckling blocks 7 which are in one-to-one correspondence with the buckling grooves 602, the bottom ends of the blocking plates 600 are bonded with the buckling blocks 7 through heat insulating adhesive by buckling the buckling grooves 602 on the connecting and reinforcing frame 6 in the corresponding buckling blocks 7, so that the connection firmness among the base plate 1, the heat insulating layer 2, the noise insulating layer 3 and the EPP coating layer 4 is improved, and the overall mechanical strength of an automobile ceiling is improved, wherein the heat insulating adhesive is commercially available 4230-PLUS;

the periphery of the bottom end of each clamping groove 602 is provided with a sticky plate 603, the sticky plate 603 is peripherally connected with each buckling block 7 through a heat insulation adhesive, and the bonding area between each connecting reinforcing frame 6 and the substrate 1, the heat insulation layer 2, the noise insulation layer 3 and the EPP coating layer 4 is increased through the sticky plate 603, so that the connecting stability is increased.

When the heat insulation car roof is used, the carbon fiber plate with excellent flexibility is arranged as the substrate 1, the elastic ball 100 is arranged in the substrate 1, the external force applied to the car roof can rebound, the heat insulation layers 2 are symmetrically arranged on the two sides of the substrate 1, so that the internal and external heat can not circulate, the heat insulation effect is achieved, meanwhile, the noise insulation layers 3 are symmetrically arranged on the two sides of the heat insulation layer 2, the external noise can be isolated, meanwhile, the EPP coating layers 4 coated on the outer walls of the two noise insulation layers 3 are compression-resistant buffer heat insulation materials, the heat insulation effect is achieved together with the heat insulation layer 2, the clamping grooves 602 are clamped outside the corresponding clamping blocks 7, the substrate 1, the heat insulation layers 2, the noise insulation layers 3 and the EPP coating layers 4 are mutually connected, the whole mechanical strength is increased, meanwhile, the bonding plates 603 are arranged on the periphery of the bottom end of each clamping groove 602 and are peripherally connected with the clamping blocks 7 through the heat insulation adhesive, and the function of increasing the connecting force between the layers is achieved.

Claims

1. An EPP overmolded insulated headliner, characterized in that: the heat insulation structure comprises a substrate (1), heat insulation layers (2) symmetrically arranged on two sides of the substrate (1), noise insulation layers (3) respectively arranged on the outer walls of the two heat insulation layers (2), an EPP (expanded polypropylene) coating layer (4) coated on the outer walls of the two noise insulation layers (3), and a shell (5) coated on the outer layer of the EPP coating layer (4);

between base plate (1) and heat insulation layer (2), between heat insulation layer (2) and the layer of making an uproar of separating (3) and between layer of making an uproar of separating (3) and EPP coating (4) all bond each other through two-sided connection anchor frame (6) that have adiabatic adhesive, the lateral wall of connecting anchor frame (6) is equipped with a plurality of cavities (60), be equipped with closure plate (600) in cavity (60), closure plate (600) are separated cavity (60) for upper and lower two parts, and upper portion is confined vacuum cavity (601), and the lower part is joint groove (602).

2. The EPP overmolded insulated headliner of claim 1, wherein the substrate (1), the thermal insulation layer (2), the noise insulation layer (3) and the side wall of the EPP encapsulating layer (4) are provided with a plurality of fastening blocks (7) corresponding to the fastening grooves (602) one by one.

3. The EPP overmolded insulated headliner of claim 2, wherein each of the snap-in grooves (602) is provided at the periphery of the bottom end thereof with an adhesive plate (603), and the adhesive plate (603) is connected to the periphery of each of the snap-in blocks (7) by a heat insulating adhesive.

4. The EPP overmolded insulated headliner of claim 1, wherein each vacuum chamber (601) is provided at an inner wall thereof with a getter layer (604), and wherein a getter is disposed in the getter layer (604).

5. The EPP overmolded insulated headliner of claim 1, wherein the substrate (1) is a carbon fiber plate and is internally provided with an internal cavity (10), and the internal cavity (10) is internally provided with a plurality of elastic balls (100).