CN209366279U - Reinforcement structure of rear side wall of vehicle body and automobile - Google Patents

Abstract

The utility model relates to the technical field of automobiles, in particular to a rear side wall reinforcement structure of a vehicle body, which comprises a rear side wall upper reinforcement plate, a D-pillar upper reinforcement plate, a rear side wall reinforcement plate, a rear side wall oblique reinforcement plate, a rear side wall The transverse reinforcement plate and the rear wheel house outer panel, one end of the rear side wall reinforcement plate is connected to the D-pillar upper reinforcement plate, the rear side wall reinforcement plate is connected to the rear wheel house outer panel, the first end of the rear side wall diagonal reinforcement plate and The first ends of the rear side wall reinforcement plates are connected to the rear side wall reinforcement plates, and the rear side wall diagonal reinforcement plates and the rear side wall transverse reinforcement plates are divergently connected from the rear side wall reinforcement plates to the D-pillar upper reinforcement plate. Reinforcement plate on D-pillar. In addition, it also relates to an automobile with the above-mentioned reinforcement structure for the rear side wall of the vehicle body. The utility model enables the force transmitted by the chassis to be better distributed to different positions of the vehicle body, avoids local stress concentration, strengthens the local rigidity and strength of the rear side of the vehicle body, and improves the first-order torsional mode of the vehicle.

Description

Reinforcement structure of rear side wall of vehicle body and automobile

technical field

The utility model relates to the technical field of automobiles, in particular to a rear side wall reinforcement structure of a vehicle body and an automobile.

Background technique

With the continuous development of automobile technology, people have higher and higher requirements for automobile performance and ride comfort. The rear structure of the car body affects the torsional stiffness and strength of the vehicle, and affects the performance of the vehicle. At present, there are mainly the following technical problems about the body side wall: first, in order to ensure the internal and external shape of the car body, the inner panel of the rear side wall is generally relatively flat, and if there is no reinforcement plate, the strength and rigidity cannot meet the requirements; The anti-dent performance is weak. In order to meet the requirements of the exterior shape, the anti-dent performance of the rear side wall is easy to fail to meet the requirements; third, the stiffness of the rear side wall is insufficient, which leads to the low first-order torsional mode of the entire body-in-white, which affects the entire vehicle. NVH (Noise, Vibration, Harshness; Noise, Vibration, Harshness) performance; Fourth, the rear structure of the vehicle body, a small window is generally designed between the C-pillar and the D-pillar, and the rear side wall reinforcement plate and the outer wheel house The plates are connected, and the force from the chassis has only one transmission path, that is, the force transmitted by the wheel house outer plate is transmitted through the rear side wall reinforcement plate and the side wall inner plate in turn, and when the force of the chassis is transmitted to the C-pillar and D column through the wheel house outer plate The beams between the pillars will be dispersed, so the rear side wall reinforcement plate is often subjected to a large force, which will easily lead to cracking of the weld joints between the rear side wall reinforcement plate and the wheel house outer plate.

Utility model content

The purpose of the utility model is to provide a vehicle body rear side wall reinforcement structure and an automobile which can effectively improve the comprehensive performance of the rear side wall of the vehicle body, increase the rigidity and strength, and improve the anti-dent performance.

In order to achieve the above purpose, the utility model provides a rear side wall reinforcement structure of the vehicle body, including a rear side wall upper reinforcement plate, a D-pillar upper reinforcement plate, a rear side wall reinforcement plate, a rear side wall oblique reinforcement plate, a rear side wall transverse Reinforcement plate and rear wheel house outer panel, one end of the upper reinforcement plate of the rear side wall is connected with the upper reinforcement plate of the D pillar, and the upper reinforcement plate of the rear side wall and the upper reinforcement plate of the D pillar are connected in the side wall The outer side of the panel, the rear side wall reinforcement plate is connected to the rear wheelhouse outer panel, the first end of the rear side wall diagonal reinforcement plate is connected to the first end of the rear side wall transverse reinforcement plate In the rear side wall reinforcement plate, the rear side wall diagonal reinforcement plate and the rear side wall transverse reinforcement plate are divergently connected to the D-pillar from the rear side wall reinforcement plate to the direction of the D-pillar upper reinforcement plate Reinforcing plate.

Optionally, the rear side wall oblique reinforcement plate is respectively connected to the outer surface of the wheel house outer panel and the outer surface of the side wall inner panel.

Optionally, the rear side lateral reinforcement plate is connected to the outer surface of the wheel house outer panel.

Optionally, the rear side wall reinforcement plate is fixedly connected to the side wall inner panel and the rear wheelhouse outer panel respectively.

Optionally, it also includes a side wall outer panel and a tail light installation bracket, the tail light installation bracket is connected to the reinforcement plate on the D-pillar, the inner surface of the side wall outer panel is respectively connected to the rear side wall upper reinforcement plate, the side wall The wall inner panel, the D-pillar upper reinforcement plate and the tail light installation bracket are connected.

Optionally, the inner surface of the side wall outer panel is connected to the side wall diagonal reinforcement plate through a shock absorber.

Optionally, the second end of the rear side wall diagonal reinforcement plate is connected to the position of the D-pillar upper reinforcement plate close to the rear side wall upper reinforcement plate, and the second end of the rear side wall transverse reinforcement plate is connected to The D-pillar upper reinforcing plate is away from the position of the rear side wall upper reinforcing plate.

Another object of the present utility model is to provide an automobile, which includes the rear side wall reinforcement structure of the vehicle body.

Implement the embodiment of the present utility model, have following technical effect:

The utility model effectively improves the comprehensive performance of the rear side wall of the vehicle body, and the force transmitted from the chassis to the rear wheel house outer plate passes through the rear side wall reinforcement plate and then along the side wall inner plate, the rear side wall oblique reinforcement plate and the rear side wall The transverse reinforcement plate is transmitted to the reinforcement plate on the rear side wall of the body and the reinforcement plate on the D-pillar, so that the force transmitted by the chassis can be better distributed to different positions of the body, avoiding local stress concentration, and improving the durability of automobile-related parts Life, enhance the local stiffness and strength of the rear side wall of the car body, improve the first-order torsional mode of the vehicle, and at the same time, make the rear side wall oblique reinforcement plate and the rear side wall transverse reinforcement plate go from the rear side wall reinforcement plate to the D-pillar The direction of the reinforcing plate is divergently arranged, thereby increasing the distribution range of the oblique reinforcing plate of the rear side wall and the transverse reinforcing plate of the rear side wall in the rear side wall, and improving the anti-sag performance of the rear side wall of the vehicle body.

In the automobile of the utility model, the rear side wall of the vehicle body has good rigidity and strength, and has high anti-sag performance, and at the same time, the NVH performance of the whole vehicle is improved.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the preferred embodiment of the present invention excluding the side wall outer panel and the taillight mounting bracket;

Fig. 2 is the structural representation of the preferred embodiment of the utility model;

Fig. 3 is a schematic diagram of the force transmission path of the preferred embodiment of the present invention.

Explanation of reference signs:

1. Reinforcement plate on the rear side wall, 2. Reinforcement plate on the D-pillar, 3. Inner panel of the side wall, 4. Reinforcement plate of the rear side wall, 5. Diagonal reinforcement plate of the rear side wall, 6. Transverse reinforcement plate of the rear side wall , 7. Wheelhouse outer panel, 8. Side panel outer panel, 9. Taillight mounting bracket.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

Referring to Fig. 1, the present embodiment provides a rear side wall reinforcement structure of a vehicle body, including a rear side wall upper reinforcement plate 1, a D-pillar upper reinforcement plate 2, a rear side wall reinforcement plate 4, a rear side wall oblique reinforcement plate 5, The rear side wall transverse reinforcement plate 6 and the rear wheel house outer panel 7, one end of the rear side wall upper reinforcement plate 1 is connected to the D-pillar upper reinforcement plate 2, and the rear side wall upper reinforcement plate 1 and the D-pillar upper reinforcement plate 2 are both connected to the side The outer side of the inner panel 3, the rear side reinforcement plate 4 is connected to the rear wheel house outer panel 7, the first end of the rear side oblique reinforcement plate 5 and the first end of the rear side lateral reinforcement plate 6 are connected to the The rear side wall reinforcement plate 4, the rear side wall oblique reinforcement plate 5 and the rear side wall transverse reinforcement plate 6 are divergently connected to the D-pillar upper reinforcement plate 2 from the rear side wall reinforcement plate 4 to the D-pillar upper reinforcement plate 2.

The utility model effectively improves the comprehensive performance of the rear side wall of the vehicle body, and the force transmitted from the chassis to the rear wheel house outer plate 7 passes through the rear side wall reinforcement plate 4 and then along the side wall inner plate 3 and the rear side wall oblique reinforcement plate 5 respectively. and the lateral reinforcement plate 6 of the rear side wall are transmitted to the upper reinforcement plate 1 of the rear side wall of the vehicle body and the upper reinforcement plate 2 of the D-pillar, so that the force transmitted by the chassis can be better distributed to different positions of the vehicle body, and local stress concentration is avoided. Improve the durability life of automobile-related parts, strengthen the local rigidity and strength of the rear side wall of the vehicle body, and improve the first-order torsional mode of the vehicle. The rear side wall reinforcement plate 4 is divergently arranged in the direction of the D-pillar upper reinforcement plate 2, thereby increasing the distribution range of the rear side wall oblique reinforcement plate 5 and the rear side wall transverse reinforcement plate 6 in the rear side wall, and improving the rear side wall of the vehicle body. anti-sag performance.

The rear side wall reinforcing plate 4 of this embodiment is fixedly connected with the side wall inner panel 3 and the rear wheel house outer panel 7 respectively.

Thus, referring to FIG. 3 , the transmission path of chassis transmission force includes:

First, through the rear wheel house outer panel 7, it is sequentially transmitted to the rear side wall reinforcement plate 4, the side wall inner panel 3 and the rear side wall upper reinforcement plate 1;

Second, through the rear wheel house outer panel 7, it is sequentially transmitted to the rear side wall reinforcement plate 4, the rear side wall oblique reinforcement plate 5 and the D-pillar upper reinforcement plate 2;

Thirdly, through the rear wheel house outer panel 7, it is sequentially transmitted to the rear side wall reinforcement plate 4, the rear side wall lateral reinforcement plate 6 and the D-pillar upper reinforcement plate 2;

Through the above-mentioned three force transmission paths, the force transmitted from the chassis to the rear wheel house outer panel 7 is dispersed and transmitted to the reinforcement plate 1 on the rear side wall of the vehicle body and the reinforcement plate 2 on the D-pillar, thereby avoiding damage to a single part or a local area of the vehicle body. Concentrate the force and improve the local stiffness and strength of the rear side wall of the vehicle body.

The rear side wall oblique reinforcement plate 5 of the present embodiment is respectively connected with the outer surface of the wheel house outer panel 7 and the outer surface of the side wall inner panel 3, so that the force transmitted by the wheel house outer panel 7 can be directly transmitted to the rear side wall oblique To the reinforcing plate 5, thereby the power is transmitted to the side wall inner panel 3 and the reinforcement plate 2 on the D-pillar through the rear side wall oblique reinforcing plate 5, so as to improve the efficiency of the wheel house outer panel 7 transmitting force.

Further, the rear side lateral reinforcement plate 6 is connected to the outer surface of the wheel house outer panel 7, so that the force transmitted by the wheel house outer panel 7 can be directly transmitted to the rear side lateral reinforcement plate 6, thereby passing through the rear side lateral reinforcement plate 6 The force is transmitted to the D main upper reinforcement plate, and the efficiency of the force transmission of the wheel house outer panel 7 is further improved.

Referring to Fig. 2, in the present embodiment, it also includes a side wall outer panel 8 and a tail light mounting bracket 9, and the tail light mounting bracket 9 is connected to the reinforcing plate 2 on the D-pillar to facilitate the installation of the tail light. The side wall upper reinforcement plate 1, the side wall inner panel 3, the D-pillar upper reinforcement plate 2 and the taillight installation bracket 9 are connected so that the side wall outer panel 8 is stably installed on the body, and the rear side wall upper reinforcement plate 1 and the side wall inner panel are connected. 3. The reinforcing plate 2 on the D-pillar and the taillight mounting bracket 9 support various parts of the side wall outer panel 8 and improve the anti-sag performance of the side wall outer panel 8 .

Wherein, the inner surface of the side wall outer panel 8 is connected with the rear side wall oblique reinforcement plate 5 through a shock absorber. The anti-deformation ability of the connection position to the reinforcement plate 5, and at the same time, the oblique reinforcement plate 5 of the rear side wall supports the side wall outer panel 8, which further improves the anti-sag performance of the side wall outer panel 8. In addition, through the side wall outer panel 8 and the rear side wall oblique reinforcement plate 5 are provided with a shock absorber, and when the force of the wheel house outer plate 7 is transmitted to the rear side wall oblique reinforcement plate 5, the transmission of the rear side wall oblique reinforcement plate 5 to the side The vibration and noise of the outer panel 8 can improve the NVH performance of the rear part of the vehicle body, thereby improving the NVH performance of the whole vehicle and making the car more comfortable to ride.

Specifically, the second end of the rear side wall diagonal reinforcement plate 5 of this embodiment is connected to the D-pillar upper reinforcement plate 2 near the position of the rear side wall upper reinforcement plate 1, and the second end of the rear side wall transverse reinforcement plate 6 is connected to At the position where reinforcement plate 2 on the D-pillar is far away from reinforcement plate 1 on the rear side wall, the wheel house outer panel 7 transmits force to the reinforcement plate on the D-pillar through the diagonal reinforcement plate 5 and the transverse reinforcement plate 6 of the rear side wall 2 The position close to both ends, so as to disperse the force at the rear end of the vehicle body, and further make the force on the rear side of the vehicle body even.

This embodiment also provides an automobile, including the above-mentioned reinforcement structure for the rear side wall of the vehicle body, so that the rear side wall of the vehicle body has good rigidity and strength, and has high anti-sag performance, and at the same time, the NVH performance of the whole vehicle is improved.

To sum up, the vehicle body rear side wall reinforcement structure of the utility model transfers the force from the chassis to the rear wheel house outer panel 7 to the upper end and the rear end of the vehicle body through three different paths, thereby avoiding the local stress concentration of the vehicle body, and at the same time The NVH performance of the rear of the body is improved, and the structure is simple and compact, meeting the lightweight requirements of the body.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and replacements can also be made. And replacement should also be regarded as the protection scope of the present utility model.

Claims (8)

1. a kind of vehicle body back side encloses reinforcement structure, which is characterized in that including rear side wall upper reinforcing plate, D column upper reinforcing plate, rear side wall Stiffening plate, rear side wall oblique stiffening plate, rear side wall transverse direction stiffening plate and rear wheel cover outer plate, rear side wall upper reinforcing plate one end It is connect with the D column upper reinforcing plate, the rear side wall upper reinforcing plate and the D column upper reinforcing plate are all connected to the outer of side-wall inner-plate Side, the rear side wall stiffening plate are connected to the rear wheel cover outer plate, the first end of the rear side wall oblique stiffening plate and described The first end of rear side wall transverse direction stiffening plate is all connected to the rear side wall stiffening plate, the rear side wall oblique stiffening plate and rear side wall Lateral stiffening plate is connected to D column upper reinforcing plate in divergent shape from the rear side wall stiffening plate to the D column upper reinforcing plate direction.

2. vehicle body back side according to claim 1 encloses reinforcement structure, which is characterized in that the rear side wall oblique stiffening plate point It is not connect with the lateral surface of the lateral surface of the wheel hood panel and side-wall inner-plate.

3. vehicle body back side according to claim 1 encloses reinforcement structure, which is characterized in that the rear side wall transverse direction stiffening plate with The wheel hood panel lateral surface connection.

4. vehicle body back side according to claim 1 encloses reinforcement structure, which is characterized in that the rear side wall stiffening plate respectively with Side-wall inner-plate is fixedly connected with the rear wheel cover outer plate.

5. vehicle body back side according to claim 1 encloses reinforcement structure, which is characterized in that further include side-wall outer-plate and taillight peace Fill bracket, the tail lamp mounting bracket is connected to the D column upper reinforcing plate, the side-wall outer-plate medial surface respectively with the rear side Stiffening plate, side-wall inner-plate, D column upper reinforcing plate is placed to connect with tail lamp mounting bracket.

6. vehicle body back side according to claim 5 encloses reinforcement structure, which is characterized in that the side-wall outer-plate medial surface passes through Shock absorber part is connect with the side wall oblique stiffening plate.

7. vehicle body back side according to claim 1 encloses reinforcement structure, which is characterized in that the rear side wall oblique stiffening plate Second end is connected to the D column upper reinforcing plate close to the position of rear side wall upper reinforcing plate, and the of the rear side wall transverse direction stiffening plate Two ends are connected to position of the D column upper reinforcing plate far from the rear side wall upper reinforcing plate.

8. a kind of automobile, which is characterized in that enclose reinforcement structure including the described in any item vehicle body back sides of claim 1~7.