Automobile rear protection device made of glass fiber reinforced composite material

Abstract

The utility model relates to an automobile rear protection device made of glass fiber reinforced composite materials. The automobile rear protection device comprises a cross beam and a support. The cross beam is an integrally formed hollow pipe and is integrally made of a glass fiber reinforced composite material; the supports are of a steel tailor-welded structure, and the multiple supports are fixedly connected with the cross beam. The light weight effect is remarkable, meanwhile, the good impact resistance is achieved, and collision energy can be absorbed easily.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a rear protective device for automobiles made of glass fiber reinforced composite material. Background Technology

[0002] Currently, traditional heavy-duty vehicle rear protection systems are mostly made of steel, which is heavy and not conducive to the overall vehicle lightweighting. In addition, traditional heavy-duty vehicle rear protection systems mostly use a welded structure of crossbeams and brackets, which is rigid, but cannot effectively absorb energy in the event of a collision, resulting in a large impact on the occupants of the vehicle. Utility Model Content

[0003] The purpose of this invention is to provide a glass fiber reinforced composite material automotive rear protection device to address the shortcomings of existing technologies.

[0004] This utility model is achieved using the following technical solution:

[0005] A rear protective device for automobiles made of glass fiber reinforced composite material includes a crossbeam and a bracket; the crossbeam is an integrally formed hollow tube and is made entirely of glass fiber reinforced composite material; the bracket is a welded steel structure, and several brackets are fixedly connected to the crossbeam.

[0006] Preferably, the bracket is bolted to the crossbeam.

[0007] Preferably, the glass fiber reinforced composite material comprises resin and glass cloth; the resin accounts for 30% and the glass cloth accounts for 70%.

[0008] Preferably, the end cross-section of the crossbeam is an "I" shaped structure.

[0009] Compared with the prior art, the present invention has the following beneficial technical effects:

[0010] The crossbeam of this utility model is an integrally formed hollow tube, and the whole is made of glass fiber reinforced composite material; it has the advantages of light weight and high strength, and achieves weight reduction while meeting performance requirements, with significant lightweight effect;

[0011] The crossbeam and bracket of this utility model are connected by bolts, which can effectively absorb energy after a collision, reduce the impact on the occupants of the vehicle, and improve the overall safety performance of the vehicle. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the crossbeam structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the beam structure of this utility model from another angle.

[0015] In the diagram, 1 is a crossbeam; 2 is a support frame. Detailed Implementation

[0016] like Figure 1-3 As shown, a glass fiber reinforced composite material automotive rear protection device includes a crossbeam 1 and a bracket 2.

[0017] The crossbeam 1 is a one-piece hollow tube, manufactured using a pultrusion molding process, and is made entirely of glass fiber reinforced composite material. The density of the glass fiber reinforced composite material is 1.8-2.0 kg / cm3, while the density of the original steel material is 7.85 kg / m3. Under the same volume, the weight is only 1 / 4 of that of metal, resulting in a significant lightweight effect. At the same time, it has good impact resistance, which is beneficial for absorbing collision energy.

[0018] The support 2 is a steel welded structure, and several supports 2 are fixedly connected to the crossbeam 1.

[0019] Furthermore, the bracket 2 is bolted to the crossbeam 1. Preferably, there are two brackets 2, and the left and right brackets 2 are bolted together to fix the crossbeam 1 to the vehicle frame. After a collision, they can effectively absorb energy, reduce the impact on the occupants of the vehicle, and improve the overall safety performance of the vehicle.

[0020] Furthermore, the glass fiber reinforced composite material includes resin and glass cloth; the resin accounts for 30% and the glass cloth accounts for 70%.

[0021] Furthermore, the end section of the crossbeam 1 is an "I" shaped structure; since the crossbeam 1 is made of a one-piece hollow tube, in this example, the top, middle and bottom of the crossbeam 1 form five hollow structures. The crossbeam 1 is provided with mounting holes for mounting the car frame and left and right brackets, as well as shock absorption holes; the weight reduction and lightweight effect are significant.

Claims

1. A fiberglass-reinforced composite automotive rear bumper, characterized by, It includes a crossbeam and a support; the crossbeam is a one-piece molded hollow tube and is made of glass fiber reinforced composite material; the support is a steel welded structure, and several of the supports are fixedly connected to the crossbeam.

2. The fiberglass-reinforced composite automotive rear bumper of claim 1, wherein, The bracket is bolted to the crossbeam.

3. The fiberglass-reinforced composite automotive rear bumper of claim 1, wherein, The glass fiber reinforced composite material comprises resin and glass cloth; the resin accounts for 30% and the glass cloth accounts for 70%.

4. The fiberglass-reinforced composite automotive rear bumper of claim 1, wherein, The end cross-section of the beam is an "I" shaped structure.

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