CN101314367A - A composite vehicle floor - Google Patents

Abstract

The invention discloses a novel composite material vehicle floor, comprising a panel (1) and a core material (2), characterized in that the panel (1) is a fiber material, the core material (2) is a lightweight material, and the panel (1) is arranged On the upper and lower surfaces of the core material (2), the panel (1) and the core material (2) are bonded by resin curing. A glass steel pipe can also be added in the middle of the core material (2), which can be a square pipe (3) or a round pipe (4), so as to strengthen the bearing capacity of the composite material vehicle floor. The composite material vehicle floor is light in weight, which can reduce the weight of the vehicle, and at the same time has good thermal insulation and heat insulation performance, energy saving and environmental protection. The composite material vehicle floor also has good vibration and sound insulation properties, which can improve the comfort of passengers. It can be universally applied to the floor of various cars, passenger cars and trucks.

Description

A composite vehicle floor

technical field

The invention relates to a composite material vehicle bottom plate, which belongs to the field of vehicle manufacturing.

Background technique

The floor is an important part of various vehicles and is one of the main load-bearing parts of the vehicle. In the current vehicle manufacturing industry, the main materials of the vehicle floor are metal materials such as steel and aluminum alloy, and plywood materials such as wood plywood and bamboo plywood.

However, the vehicle floor plates made of the above-mentioned materials all have the following defects and deficiencies. The vehicle floor adopts an all-metal structure. The metal structure has light corrosion resistance and heavy weight. The sound insulation, noise insulation, and vibration isolation performance are poor, and the thermal insulation performance is not ideal. And the vehicle floor that adopts various bamboo-wood plywoods also has certain problems in its heat insulation, sound insulation, and noise insulation performance.

Therefore, there is an urgent need to research and develop new composite vehicle floor panels.

Contents of the invention

The object of the present invention is to provide a novel vehicle floor made of composite materials for the above-mentioned deficiencies in the existing vehicle floor technology.

The object of the present invention can be achieved through the following measures:

A composite material vehicle floor, comprising a panel 1 and a core material 2, characterized in that the panel 1 is a fiber material, the core material 2 is a lightweight material, the panel 1 is arranged on the upper and lower surfaces of the core material 2, the panel 1 and the core material 2 Made of resin cured glue.

A glass steel pipe can also be added in the middle of the core material 2, and the glass steel pipe is a square pipe 3 or a circular pipe 4. The core material 2 is balsa wood, paulownia wood, fir wood, oak wood, plywood, polyurethane foam, polyvinyl chloride foam or carbon foam.

The panel 1 is uniaxial, biaxial or multiaxial carbon fiber, glass fiber, aramid fiber or hybrid fiber cloth layer.

The resin is unsaturated polyester, vinyl resin, epoxy resin or phenolic resin.

The composite material vehicle floor is characterized in that the bottom of the composite material vehicle floor is supported by a support beam 5, and the support beam 5 is a composite material beam or a steel beam.

The present invention has the following advantages:

The invention is a novel composite material vehicle floor plate manufactured by adopting the latest composite material technology, which has high strength, small volume occupied by the panel, and light weight. While having good mechanical properties, the composite vehicle floor also has many excellent properties such as light weight, heat preservation, heat insulation, sound insulation, noise reduction, and vibration reduction.

Vehicles with composite material vehicle floor can achieve different use effects: ordinary cars can reduce body weight, improve vehicle body vibration, and have good heat insulation and sound insulation effects at the same time; The noise in the compartment has a good suppression effect, and at the same time it has good thermal insulation performance and improved durability of the floor; the use of composite material vehicle floor in the truck compartment can also effectively reduce the weight of the vehicle body, reduce fuel consumption, and benefit energy saving Environmental protection, but also conducive to improving the load capacity of the vehicle.

Description of drawings

Figure 1 is one of the structural schematic diagrams of a composite material vehicle floor.

Fig. 2 is the second structural schematic diagram of the composite material vehicle floor.

Fig. 3 is the third structural schematic diagram of the composite material vehicle floor.

Fig. 4 is a schematic view of the use state of the composite material vehicle floor.

In the drawings: 1 is the panel, which is cured by high-strength, high-modulus fiber material and resin material, and mainly bears the normal stress caused by bending deformation; 2 is the core material, which is a lightweight material, which can be foam, Light wood, etc., provide enough section moment of inertia for the sandwich structure, and mainly bear the shear stress; 3 is a square tube, which can be made of glass fiber reinforced plastic or other fiber materials; 4 is a round tube, which can be made of glass fiber reinforced plastic or other fiber materials manufacture. 3 and 4 are mainly used to strengthen the load-carrying capacity of the composite material vehicle floor; 5 is a supporting beam, which is used to strengthen the load-bearing capacity of the composite material vehicle floor, and the usage form shown in Figure 4 is mainly used for the truck floor.

Detailed ways

According to different purposes, the composite material vehicle floor can have a car floor, a passenger car floor, a truck compartment floor, etc., and the composite material compartment floor can meet the requirements. But it is different in concrete implementation, the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

Example 1

A floor plate for cars is one of the composite material vehicle floor plates involved in this paper. The panel 1 is formed by curing epoxy resin and carbon fiber, and the core material 2 is PVC foam. Process the corresponding mold according to the need, and treat the surface of the mold accordingly. Lay the bottom layer of carbon fiber, PVC foam, and top layer of carbon fiber on the surface of the mold, seal the mold, and fill the mold with epoxy resin. After the resin is completely cured, the composite bottom plate can be taken out, and it can meet the requirements after a little modification.

Example 2

A passenger car bottom plate is one of the composite material vehicle bottom plates involved in this paper. The panel 1 is formed by curing vinyl resin and glass fiber, and the core material 2 is Balsa balsa wood. The bottom plate for passenger cars is generally a flat plate, and a platform is selected as a mold according to its needs, and the corresponding surface treatment is carried out on the mold. Lay vinyl-impregnated fiberglass on the countertop, top with balsa wood, and then resin-impregnated fiberglass. After the laying is completed, the test piece is sealed, and the excess resin is extracted. After the resin is completely cured, the required vehicle floor can be formed.

Example 3

A compartment floor for trucks, which is one of the composite material vehicle floors involved in this paper, its panel 1 is made of vinyl resin and glass fiber solidified, the core material 2 is foam wood, and the core material 2 is placed at intervals There are FRP square tubes 3. The bottom plate of the truck compartment is generally a large-area flat plate, which needs to be spliced by multiple flat plates. Select a platform as the mold according to its needs, and carry out corresponding surface treatment on the mold. Spread the glass fiber impregnated with vinyl resin on the table top, pave paulownia wood on the surface, arrange the glass fiber reinforced plastic square tubes 3 at intervals, and spread the glass fiber impregnated with resin again. After the laying is completed, an appropriate amount of pressure is applied to the surface of the specimen to ensure its molding quality. After the resin in the test piece is completely cured, the required vehicle floor can be obtained.

There are various preparation methods for the above-mentioned composite material vehicle floor, which can be manufactured by hand lay-up process, vacuum bag forming process, vacuum introduction forming process and other processes. The details are as follows:

Select the corresponding fiber material and core material according to different performance requirements, and lay them in the corresponding mold. The laying sequence is: first lay the bottom fiber, then lay the core material 2, and finally lay the top fiber. After the laying is completed, the mold is sealed and filled with resin. After the resin has fully cured, the desired vehicle floor can be removed.

According to actual needs, other methods can also be adopted. In the constituent materials of the composite vehicle floor, the core material 2 can be Balsa wood, paulownia wood, fir, oak, plywood, polyurethane foam, polyvinyl chloride foam or carbon foam; the fiber cloth layer includes: uniaxial , biaxial or multiaxial carbon fiber, glass fiber, aramid fiber or hybrid fiber cloth, the direction and number of layers of the upper and lower surfaces are consistent or inconsistent with the type; the resins include: unsaturated polyester, vinyl resin, epoxy or phenolic resin. According to different material combinations, different performance composite sandwich panels can be combined, so that the sandwich panels have various properties such as light weight, high strength, heat preservation, corrosion resistance, and wear resistance, so as to meet the requirements of vehicle floors with different functions.

Claims (6)

1. A composite material vehicle floor, which includes a panel (1) and a core material (2), characterized in that the panel (1) is a fiber material, the core material (2) is a lightweight material, and the panel (1) is arranged on the core The upper and lower surfaces of the material (2), the panel (1) and the core material (2) are formed by curing and bonding resin. 2. The composite material vehicle floor according to claim 1, characterized in that a glass steel pipe is added in the middle of the core material (2), and the glass steel pipe is a square pipe (3) or a round pipe (4). 3. The composite vehicle floor according to claim 1 or 2, characterized in that the core material (2) is Balsa wood, paulownia wood, Chinese fir, oak, plywood, polyurethane foam, polyvinyl chloride foam or carbon foam . 4. The composite material vehicle floor according to claim 1, characterized in that the fiber material of the panel (1) is uniaxial, biaxial or multiaxial carbon fiber, glass fiber, aramid fiber or hybrid Fiber cloth. 5. The composite vehicle floor according to claim 1, characterized in that said resin is unsaturated polyester, vinyl resin, epoxy resin or phenolic resin. 6. The composite material vehicle floor according to claim 1, characterized in that the bottom of the composite material vehicle floor is supported by a support beam (5), and the support beam (5) is a composite material beam or a steel beam.

Images