WO2018184315A1

WO2018184315A1 - Rear longitudinal beam reinforcement, rear longitudinal beam, rear anti-collision beam, vehicle body structure and vehicle

Info

Publication number: WO2018184315A1
Application number: PCT/CN2017/092512
Authority: WO
Inventors: 申学开; 程铭; 杨传义; 郑望; 靖海涛; 李硕; 秦乐
Original assignee: 上海蔚来汽车有限公司
Priority date: 2017-04-07
Filing date: 2017-07-11
Publication date: 2018-10-11

Abstract

A rear longitudinal beam reinforcement, a rear longitudinal beam, a rear anti-collision beam, a vehicle body structure and a vehicle. The rear longitudinal beam reinforcement comprises a reinforcement body consisting of an extrusion member, the reinforcement body having a first end used for connection to a rear longitudinal beam body and a second end for connection to a rear anti-collision beam body. The rear longitudinal beam reinforcement, the rear longitudinal beam, the rear anti-collision beam and the vehicle body may reduce the weight of a vehicle, increase the available space of the vehicle, and improve the safety of the vehicle.

Description

Rear longitudinal beam reinforcement, rear longitudinal beam, rear impact beam, body structure and vehicle

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to the field of vehicle body structures, and more particularly to a rear side rail reinforcement and a rear side member, a rear impact beam, a vehicle body structure and a vehicle having such rear side rail reinforcement members.

Background technique

The rear longitudinal beam (also known as the rear longitudinal beam assembly) and the rear impact beam (also known as the assembly in the industry) are part of the rear part of the vehicle and provide some protection when the vehicle collides, for example, in rear-end collisions. effect. In the prior art, the rear side member assembly is generally integrally formed by stamping or die casting, and is directly connected to the rear impact beam assembly of the vehicle.

Summary of the invention

The purpose of the invention is to reduce the structure of the rear body of the vehicle and the weight of the vehicle;

The object of the present invention is to reduce the occupied space of the rear body structure of the vehicle and increase the available space at the rear of the vehicle.

The object of the present invention is to absorb rear collision energy and improve vehicle safety.

It is an object of the present invention to solve or at least alleviate the problems in the prior art.

In one aspect, the present invention provides a rear rail reinforcement for a vehicle, the rear rail reinforcement comprising a stiffener body comprised of an extrudate body for use with a rear rail body A first end of the connection and a second end for connection to the rear impact beam body.

Optionally, in the rear stringer reinforcement, the reinforcement body is constructed from an aluminum extrusion.

Optionally, in the rear stringer reinforcement, the reinforcement body comprises a side wall sequentially connected to form a substantially rectangular side wall and a transverse rib wall connected to a middle portion of the pair of side walls.

Optionally, in the rear longitudinal stiffener, the cross-section of the stiffener body is of an "8" shape.

Optionally, in the rear longitudinal beam reinforcement, the rear longitudinal beam reinforcement further comprises a mounting plate disposed at the second end of the reinforcement body, the mounting plate covering the second end of the reinforcement body Cross section And the mounting plate has a mounting portion for connecting the rear longitudinal beam reinforcement to the rear impact beam body.

Optionally, in the rear side member reinforcement member, the mounting plate extends outward to form a periphery protruding from the second end, and the mounting portion is disposed on a circumference of the mounting plate for a mounting hole to which the rear impact beam body is connected.

Optionally, in the rear stringer reinforcement, the mounting plate is made of an aluminum-based material and welded to the second end of the reinforcement body.

Optionally, in the rear stringer reinforcement, the rear rail reinforcement further includes a support extending from the reinforcement body.

In another aspect, a rear side member is provided that includes a rear side rail body and a rear side rail reinforcement member according to various embodiments, the rear side rail body is a portion of the rear side member, and the rear longitudinal member A beam reinforcement is coupled to the rear longitudinal rail body of the rear longitudinal rail by the first end of the reinforcement body.

Optionally, in the rear side member, the rear side member body is composed of an aluminum die cast.

Optionally, in the rear side member, the rear side member main body has a connecting portion surrounding the first end of the rear side member reinforcing member, the connecting portion of the rear side member main body and the rear longitudinal member The first ends of the beam stiffeners are connected by bolts.

In another aspect, a rear impact beam is provided that includes a rear impact beam body and a rear longitudinal beam reinforcement according to various embodiments, the rear impact beam body being part of the rear impact beam, And the rear longitudinal beam reinforcement is connected to the rear impact beam main body of the rear impact beam through the second end of the reinforcement body.

In another aspect, a vehicle body structure is provided that includes a rear longitudinal beam body and a rear impact beam body, and is disposed between the rear longitudinal beam body and the rear impact beam body according to various embodiments Stringer reinforcement.

In another aspect, a vehicle is provided that includes a rear side rail reinforcement, a rear side rail, a rear impact beam, or a vehicle body structure in accordance with various embodiments.

The rear longitudinal beam reinforcement, the rear longitudinal beam, the rear impact beam, and the vehicle body structure according to the present invention reduce the vehicle weight and increase the available space at the rear of the vehicle and improve vehicle safety.

DRAWINGS

The disclosure of the present invention will become more apparent from the drawings. Those skilled in the art will readily understand The drawings are for illustrative purposes only and are not intended to limit the scope of the invention. In addition, similar numbers in the figures are used to indicate similar components, in which:

Figure 1 shows a perspective view of a rear side member reinforcement member as viewed from one side in accordance with one embodiment of the present invention;

Figure 2 shows a perspective view of the rear stringer reinforcement viewed from the other side in accordance with one embodiment of the present invention;

Figure 3 illustrates a cross-sectional view of a stiffener body of a rear stringer reinforcement in accordance with one embodiment of the present invention;

Figure 4 shows a perspective view of a rear stringer in accordance with one embodiment of the present invention.

detailed description

It will be readily understood that one of ordinary skill in the art can devise alternative implementations of one or more of the embodiments of the present invention described herein without departing from the spirit of the invention. The following detailed description and the accompanying drawings are merely illustrative and not restrictive

The terms of the top, bottom, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined with respect to the configurations shown in the respective drawings, which are Relative concepts, so it is possible to change accordingly according to their different locations and different usage states. Therefore, these or other orientation terms should not be interpreted as restrictive terms.

Referring first to Figures 1 and 2, they illustrate a rear stringer reinforcement 1 in accordance with one embodiment of the present invention from a different perspective. The rear rail stiffener 1 comprises a stiffener body 10 comprised of an extrudate body having a first end 19 for connection to the rear rail body and a second end for connection to the rear impact beam body 18. When the vehicle collides, especially when the tail of the vehicle collides, the reinforcement body 10 composed of the extrusion member disposed between the rear longitudinal beam main body and the rear impact beam main body will undergo stacking deformation during the collision. The collision energy is converted into the deformation energy of the extrusion, thereby absorbing the energy generated during the collision and mitigating the damage caused by the collision to the vehicle and the person inside the vehicle. The term "extrudate" as used herein refers to components produced by extrusion, which generally include open ends and closed side walls, and optional central transverse rib walls. In some embodiments, the reinforcement body 10 can be formed from a metal extrusion, particularly an aluminum extrusion, which reduces the weight of the vehicle. In addition, for the rear longitudinal beam composed of die-casting parts, the structure is more complicated, and in order to meet the close back-impact performance, a relatively large envelope is required to form sufficient strength to compress the interior space; For the stringer, it is heavier. The present application uses an extrusion as part of a rear side member or a rear impact beam. Since the extrusion has a closed cross section and a large section strength and section stiffness, it can have a relatively small envelope, thereby increasing the vehicle. Free space.

In some embodiments, the rear rail stiffener 1 further includes a mounting plate 11 disposed at the second end 18 of the stiffener body 10. The mounting plate 11 may be attached to the second end 18 or may be integrally formed with the reinforcement body 10. In the present example, the mounting plate 11 is made of an aluminum-based material and is attached to the second end 18 of the reinforcement body 10 by, for example, welding or the like. In this example, the mounting plate 11 covers the entire cross-section of the second end 18 of the stiffener body 10 and continues to extend outwardly to form a perimeter 16 that projects beyond the cross-section of the second end 18 of the stiffener body 10. According to the present invention, the mounting plate 11 is provided with a mounting portion for connecting the stiffener body 10 to a rear impact beam (not shown), which may be disposed at any suitable position of the mounting plate 11, depending on the actual application. The mechanism of the rear anti-collision beam. In a specific example of the present invention, a mounting hole 12 for connecting the mounting plate 11 to a rear impact beam (not shown) is disposed on the peripheral edge 16 of the mounting plate 11 as a connection for connecting the reinforcement main body 10 To the mounting part of the rear impact beam. Here, by way of example and not limitation, the mounting plate 11 is generally square, and in this particular application, the central portion of each side of the square is slightly contracted toward the stiffener body 10, and the mounting aperture 12 is disposed therein. The four corners of the mounting plate 11 are mounted. It should be noted that the shape of the mounting plate 11 is not limited by the shape described herein with reference to the accompanying drawings. It should be understood by those skilled in the art that the shape of the mounting plate 11 can be based on, for example, a rear anti-collision beam body connected thereto. The shape of the component is determined.

In some embodiments, the rear rail stiffener 1 further includes a support 5 for supporting the stiffener body 10 when the stiffener body 10 is disposed within the body structure of the vehicle. The support 5 can be extended by the reinforcement body. The first side 51 of the support 5 is coupled to the body sheet metal and the second side (not labeled) supports the bottom of the reinforcement body 10, it being understood that the second side and the first side 51 are located on either side of the support body 50. The support member 5 is disposed such that the rear longitudinal beam reinforcement member 1 can be supported without being suspended when it is coupled to the rear longitudinal beam main body and the rear impact beam main body and coupled to the vehicle body.

3 is a cross-sectional view of a stiffener body of a rear side rail reinforcement, in accordance with an embodiment of the present invention, further illustrating the stiffener body 10 in conjunction with FIG. The reinforcement main body 10 includes a top wall 101, a left side wall 102, a bottom wall 103, and a right side wall 104, which are sequentially connected to constitute a peripheral wall of the reinforcement main body 10. Further, the corners 108 of the peripheral wall of the reinforcement body 10 have chamfers 108, and the reinforcement body 10 further includes a transverse rib wall 105 disposed at a central portion of the left side wall 102 and the right side wall groove 104. The left side wall 102 is recessed inwardly at the intersection with the central transverse rib wall 105, that is, in the direction toward the right side wall 104, forming a left side wall groove 107; correspondingly, the right side wall 104 is in its transverse rib with the middle portion The intersection of the walls 105 is recessed inwardly, that is, in the direction toward the left arm 102, forming a right side wall groove 106. Basically, as shown in FIG. 3, the cross section of the reinforcement main body 10 is "8". Font type. However, in alternative embodiments, the stiffener body 10 may have other shapes in cross section, such as circular, polygonal or I-shaped, and the like. In some embodiments, the reinforcement body 10 can also have other forms of rib walls, including transverse rib walls, longitudinal rib walls, diagonal rib walls, and intersecting rib walls, and the like.

Figure 4 illustrates a rear stringer in accordance with an embodiment of the present invention. Referring to FIG. 4, the rear side member includes a rear side rail reinforcement member 1 and a rear side rail main body 2. The rear rail stiffener 1 comprises a stiffener body 10 comprised of an extrudate, the first end 19 of the stiffener body 10 being joined to the rear rail body 2, the second end 18 of the stiffener body 10 being to be fitted with a rear impact beam The main body is connected. In some embodiments, the rear side member body 2 may be integrally formed from a die cast or stamped part. In some embodiments, the rear stringer body is constructed from an aluminum die cast. The rear side member main body 2 has a connecting portion 21 for connection with the rear side frame reinforcement 1. The connecting portion 21 may be provided in a structure that can be coupled to the first end 19 of the reinforcement main body 10. Referring to Figures 1 and 2, in the example given herein, the end of the end of the first end 19, or the four

side walls

101, 102, 103 and 104 of the reinforcement body 10 (see Figure 3) A plurality of bolt holes 17 are provided at one end. Returning to Figure 4, the inner diameter of the connecting portion 21 is slightly larger than the outer diameter of the first end 19 such that the connecting portion 21 can be sleeved to the first end 19. Accordingly, the rear longitudinal rail main body 2 and the rear side rail reinforcement 1 can be joined together by bolts at a position where the joint portion 21 corresponds to the bolt hole 17. In an alternative embodiment, the rear side frame body 2 can be coupled to the rear side member reinforcement 1 in any suitable manner, for example, the inner diameter of the first end 19 is greater than the outer diameter of the connecting portion 21 such that the first end 19 can be sleeved. The connection unit 21 and the like are connected.

Although not illustrated, as already explained above, the second end 18 of the stiffener body 10 is coupled to the rear impact beam body such that the stiffener body 10 is positioned between the rear rail body and the rear impact beam body.

According to an embodiment of the invention, a rear impact beam is also provided. The rear impact beam includes a rear impact beam body and any of the rear side rail reinforcements as described above, such as the rear side rail reinforcement as described above in connection with Figures 1-3. In this embodiment, the stiffener body 10 is coupled to the rear impact beam body by its second end 18. The manner of attachment may be by attachment to the rear impact beam body in a suitable manner through mounting holes 12 (see Figures 1 and 2), or other means not described herein. Accordingly, the rear impact beam can be coupled to the rear longitudinal rail body 2 through the first end of the reinforcement body 10.

According to an example of the present invention, there is further provided a vehicle body structure including a rear longitudinal beam main body and a rear impact beam main body, wherein between the rear longitudinal beam main body and the rear impact beam main body is further provided as described above Rear rail stiffeners, such as the rear rail stiffeners described in connection with Figures 1 through 3.

Rear longitudinal beam reinforcement disposed between the rear longitudinal beam body and the rear impact beam body according to the present invention In the collision of the vehicle, it can effectively absorb the energy generated by the collision, thereby reducing the damage caused by the collision and improving the degree of collision and safety of the vehicle.

The present invention is also intended to include a vehicle having rear side sill reinforcement members or rear side members or rear impact beams or body structures as described in various embodiments of the present invention on both sides of the rear of the vehicle body.

In the examples described above, the rear sill reinforcement is described as being directly connected to the rear longitudinal rail body and/or the rear impact beam body. In practical applications, it is not necessarily directly connected to the main body, or may be indirectly connected. Or connected to the non-body portion of the rear side member and/or to the non-body portion of the rear impact beam.

The specific embodiments described above are merely illustrative of the principles of the invention, and the various embodiments are Various modifications or changes may be made to the invention without departing from the scope of the invention. It is to be understood that these modifications or variations are intended to be included within the scope of the invention.

Claims

A rear side sill reinforcement for a vehicle, characterized in that the rear sill reinforcement comprises a reinforcement body composed of an extrusion, the reinforcement body having a first connection for connection with the rear longitudinal body One end and a second end for connection to the rear impact beam body.
The rear stringer reinforcement of claim 1 wherein said reinforcement body is constructed of an aluminum extrusion.
The rear stringer reinforcement according to claim 1 or 2, wherein the reinforcement body comprises a side wall sequentially connected to form a substantially rectangular side wall and a transverse rib wall connected to a middle portion of the pair of side walls.
The rear stringer reinforcement according to claim 3, wherein the reinforcing member body has a cross-section of an "8" shape.
A rear side sill reinforcement according to any one of claims 1 to 4, wherein the rear sill reinforcement further comprises a mounting plate disposed at a second end of the reinforcement body, the mounting plate covering a cross section at the second end of the reinforcement body, and the mounting plate has a mounting portion for connecting the rear longitudinal beam reinforcement to the rear impact beam body.
The rear side member reinforcement member according to claim 5, wherein the mounting plate extends outward to form a periphery protruding from the second end, and the mounting portion is disposed on a circumference of the mounting plate. And a mounting hole connected to the rear impact beam body.
The rear stringer reinforcement according to claim 5, wherein the mounting plate is made of an aluminum-based material and welded to the second end of the reinforcement body.
A rear side member reinforcement according to any one of claims 1 to 7, wherein the rear side member reinforcement further comprises a support member extending from the reinforcement body.
A rear side member comprising a rear side rail body and the rear side member reinforcement member according to any one of claims 1 to 8, the rear side member main body being a part of the rear side member, and A rear rail stiffener is coupled to the rear rail body of the rear rail by the first end of the stiffener body.
The rear side member according to claim 9, wherein the rear side member body is composed of an aluminum die cast member.
A rear impact beam comprising: a rear impact beam body and the rear longitudinal beam reinforcement according to any one of claims 1 to 8, the rear impact beam body being the rear impact beam Part of the rear side member The reinforcement member is coupled to the rear impact beam body of the rear impact beam by the second end of the reinforcement body.
A vehicle body structure comprising a rear longitudinal beam main body and a rear impact beam main body, wherein between the rear longitudinal beam main body and the rear impact beam main body, any one of claims 1 to 8 is provided The rear stringer reinforcement described in the item.
A vehicle, comprising the rear rail reinforcement according to any one of claims 1 to 8, or a rear side member according to any one of claims 9 to 10, Or a rear impact beam according to claim 11 or a vehicle body structure according to claim 12.