CN213167959U

CN213167959U - Automobile front end anti-collision structure and automobile body structure

Info

Publication number: CN213167959U
Application number: CN202021391184.6U
Authority: CN
Inventors: 王恒; 张顺; 周英杰; 蒋振; 张铁
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-05-11
Anticipated expiration: 2030-07-15

Abstract

The application relates to an automobile front-end anti-collision structure and an automobile body structure, wherein the automobile front-end anti-collision structure comprises a front-end beam structure, a front anti-collision beam and front longitudinal beams respectively arranged at two ends of the front anti-collision beam; the front anti-collision reinforcing structure is arranged on the front end beam structure; the front anti-collision reinforcing structure comprises a front anti-collision extension plate, an auxiliary energy absorption box, a longitudinal beam extension plate and a connecting bracket structure, wherein the front anti-collision extension plate is arranged along the end part of the front anti-collision beam in an outward smooth transition extension mode, the auxiliary energy absorption box is connected with the front anti-collision extension plate, the longitudinal beam extension plate is connected with the auxiliary energy absorption box and extends along the extension direction of the front longitudinal beam, and the connecting bracket structure is used for connecting the front longitudinal beam and the longitudinal beam extension plate. This application increases front end structure X to and Y to joint strength and rigidity through preceding crashproof additional strengthening to satisfy front end structure's crashproof performance requirement.

Description

Automobile front end anti-collision structure and automobile body structure

Technical Field

The application relates to the technical field of automobile bodies, in particular to an automobile front end anti-collision structure and an automobile body structure.

Background

In the front end structure of the whole vehicle, an anti-collision beam, an energy absorption box, a longitudinal beam and a shotgun (the shotgun is generally referred to as an upper longitudinal beam in an automobile structure, and a front longitudinal beam reinforcing structure, namely a structure between a hinge column and a headlamp cross beam) are structural bearing parts corresponding to a main force transmission path. At present, along with the higher and higher requirements of consumers on the safety performance of automobiles and the increasingly strict regulations on automobile collision, the attention on the details of the design of the whole automobile is higher, so higher requirements are provided for the rigidity and the strength of the front end structure of the automobile, and at present, all manufacturers adopt an integrated structure, or are integrally formed, or are an integrated welding assembly when dealing with the collision requirements, and cannot meet the low-cost structural requirements when dealing with different requirements.

Disclosure of Invention

The embodiment of the application provides a front end anti-collision structure of an automobile and an automobile body structure of the automobile, and aims to solve the technical problems that in the related art, the connection strength and the rigidity of the front end structure in the X direction and the Y direction are insufficient.

In a first aspect, an automobile front-end collision avoidance structure is provided, including: the front end beam structure comprises a front anti-collision beam and front longitudinal beams respectively arranged at two ends of the front anti-collision beam; and the number of the first and second groups,

the front anti-collision reinforcing structure is arranged on the front end beam structure;

the front anti-collision reinforcing structure comprises a front anti-collision extension plate, an auxiliary energy absorption box, a longitudinal beam extension plate and a connecting bracket structure, wherein the front anti-collision extension plate is arranged along the end part of the front anti-collision beam in an outward smooth transition extension mode, the auxiliary energy absorption box is connected with the front anti-collision extension plate, the longitudinal beam extension plate is connected with the auxiliary energy absorption box and extends along the extension direction of the front longitudinal beam, and the connecting bracket structure is used for connecting the front longitudinal beam and the longitudinal beam extension plate.

In some embodiments, the front impact extension panel includes an impact beam connection section and an energy absorption box connection section that are connected to each other;

the end part of the front anti-collision beam is provided with a connecting groove, and the anti-collision beam connecting section is inserted into the connecting groove and is in threaded connection or welded with the front anti-collision beam; the energy absorption box connecting section is in threaded connection or welded with the auxiliary energy absorption box.

In some embodiments, the front anti-collision extension plate comprises an anti-collision extension main plate and anti-collision extension side plates respectively folded and arranged on two sides of the anti-collision extension main plate, and an anti-collision extension groove is defined between the anti-collision extension main plate and the two anti-collision extension side plates;

the end part of the front anti-collision beam is provided with a connecting groove, the anti-collision extension main board and the anti-collision extension side board are partially inserted into the connecting groove, and the anti-collision extension groove is correspondingly communicated with the connecting groove; the auxiliary energy absorption boxes are correspondingly clamped in the anti-collision extension grooves.

In some embodiments, the linking bracket structure includes an intermediate linking plate provided at an end of the longitudinal beam extension plate, and an intermediate linking bracket connected between a side surface of the longitudinal beam extension plate and a side surface of the front longitudinal beam, the attachment energy-absorbing box is provided on the intermediate linking plate, and the intermediate linking plate is connected to the front longitudinal beam.

In some embodiments, the middle connecting plate is a connecting flat plate, the auxiliary energy absorption box and the longitudinal beam extension plate are respectively welded to two planes opposite to the connecting flat plate, and the side edge of the connecting flat plate is welded to the front longitudinal beam.

In some embodiments, the middle connecting bracket includes a bracket main body disposed obliquely, and a longitudinal beam connecting portion and an extension plate connecting portion respectively disposed at two ends of the bracket main body, the longitudinal beam connecting portion is welded to the front longitudinal beam, and the extension plate connecting portion is welded to the longitudinal beam extension plate.

In some embodiments, the longitudinal beam connecting part is provided as a flat plate-shaped structure, and an included angle is formed between the flat plate-shaped structure and the bracket main body;

the extension plate connecting part comprises at least one connecting leg extending outwards along the end part of the bracket main body, and the connecting leg is welded to the side surface of the longitudinal beam extension plate.

In some embodiments, the longitudinal beam extension plate comprises an extension plate bottom plate and an extension plate cover plate covering the extension plate bottom plate, an extension plate cavity is formed between the extension plate cover plate and the extension plate bottom plate, and the intermediate connecting bracket is connected to the extension plate bottom plate.

In some embodiments, both sides of the extension plate bottom plate protrude outside the extension plate cover plate.

In a second aspect, an automobile body structure is provided, which comprises the automobile front-end anti-collision structure.

The beneficial effect that technical scheme that this application provided brought includes: the X-direction and Y-direction connecting strength and rigidity of the front end structure are improved through the front anti-collision reinforcing structure, so that the anti-collision performance requirement of the front end structure is met.

The embodiment of the application provides a car front end anticollision structure and car body structure, owing to increased X to with Y to connection structure, consequently, increase front end structure X to with Y to joint strength and rigidity to satisfy front end structure's crashproof performance requirement.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of an automobile front-end collision avoidance structure according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a front impact extension panel provided in an embodiment of the present application;

FIG. 3 is a schematic view of an intermediate connection plate provided in an embodiment of the present application;

FIG. 4 is a schematic view of an intermediate linking bracket provided in accordance with an embodiment of the present application;

fig. 5 is a schematic view of a stringer extension panel provided in an embodiment of the present application.

In the figure: 1. a front end beam structure; 11. a front impact beam; 12. a front longitudinal beam; 2. a front crash reinforcement structure; 21. a front impact extension panel; 22. an auxiliary energy absorption box; 23. a stringer extension panel; 231. an extension plate bottom plate; 232. an extension plate cover plate; 24. connecting the support structure; 241. an intermediate connection plate; 242. the middle is connected with a bracket; 2421. a stent body; 2422. a longitudinal beam connecting portion; 2423. an extension plate connecting portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides an automobile front end anti-collision structure, which can solve the technical problems that the X direction and the Y direction of a front end structure are insufficient in connection strength and rigidity.

Referring to fig. 1, an embodiment of the present application provides an automobile front-end anti-collision structure, which includes a front-end beam structure 1 and a front anti-collision reinforcing structure 2 disposed on the front-end beam structure 1. The front anti-collision reinforcing structure 2 further assists in improving the strength and rigidity of the front end beam structure 1, thereby improving the anti-collision performance thereof.

The front end beam structure 1 comprises a front anti-collision beam 11 and front longitudinal beams 12 respectively arranged at two ends of the front anti-collision beam 11, is a basic framework of the front end structure of the automobile, and can further comprise energy absorption structures such as an energy absorption box and the like.

The front crash reinforcement structure 2 comprises a front crash extension plate 21, an auxiliary energy absorption box 22, a longitudinal beam extension plate 23 and a connecting bracket structure 24. The outside rounding off of tip of preceding crashproof roof beam 11 of crashproof extension board 21 edge extends, provides Y to supporting to increase Y to joint strength, avoid extending the sharp face that appears in-process, lead to too big at collision in-process impact force, avoid causing the secondary damage simultaneously. The auxiliary energy absorption box 22 is connected with the front anti-collision extension plate 21, and absorbs energy in the collision process to reduce the impact. The longitudinal beam extension plate 23 extends along the extension direction of the front longitudinal beam 12 and provides X-direction support, so that the X-direction connecting strength is increased, and the front anti-collision extension plate 21X is prevented from being suspended. The connecting bracket structure 24 connects the front longitudinal beam 12 and the longitudinal beam extension plate 23 and provides Y-direction support, so that Y-direction connecting strength is increased, and the longitudinal beam extension plate 23 is prevented from being suspended in the Y direction.

Because the front anti-collision extension plate 21, the auxiliary energy absorption boxes 22, the longitudinal beam extension plate 23 and the connecting bracket structure 24 are all split structures, the front anti-collision reinforcing structure 2 comprises one or more of the front anti-collision extension plate, the auxiliary energy absorption boxes, the longitudinal beam extension plate and the connecting bracket structure 24, and can be combined according to the anti-collision performance requirement and the strength rigidity requirement, so that a performance optimization scheme is constructed, and meanwhile, the cost is reduced.

Optionally, the front impact extension panel 21 includes an impact beam connection section and an energy-absorbing box connection section connected to each other, the impact beam connection section is used for screwing or welding with the front impact beam 11, and the energy-absorbing box connection section is used for screwing or welding with the auxiliary energy-absorbing box 22. The tip of preceding crashproof roof beam 11 is equipped with the spread groove, crashproof roof beam linkage segment cartridge is in the spread groove, 11 partial coincidences of crashproof roof beam linkage segment and preceding crashproof roof beam also, the extending direction who sets up the crashproof roof beam linkage segment is length direction, another minor face is width direction, consider that spatial arrangement requires and the collision direction generally is head-on collision, the width of crashproof roof beam linkage segment is less than the length that preceding crashproof roof beam 11 corresponds, the outside rounding off of tip of crashproof roof beam 11 extends before crashproof extension board 21 follows before being convenient for, strengthen the intensity of junction simultaneously.

Optionally, as shown in fig. 2, the front anti-collision extension board 21 includes an anti-collision extension main board, and anti-collision extension side boards respectively folded and disposed on two sides of the anti-collision extension main board, and an anti-collision extension groove is defined between the anti-collision extension main board and the two anti-collision extension side boards. The tip of preceding crashproof roof beam 11 is equipped with the spread groove, and the crashproof extends mainboard and crashproof extension curb plate part cartridge in the spread groove, also is crashproof roof beam linkage segment and 11 partial coincidences of preceding crashproof roof beam, and the extending direction who establishes the crashproof extension mainboard is length direction, and another minor face is width direction, considers that spatial arrangement requires and the collision direction generally is head-on collision, and the width that the crashproof extended the mainboard is less than the length that preceding crashproof roof beam 11 corresponds. The anti-collision extension groove is correspondingly communicated with the connecting groove, and the auxiliary energy absorption box 22 is correspondingly clamped in the anti-collision extension groove.

Optionally, the linking bracket structure 24 includes a middle connecting plate 241 and a middle linking bracket 242, wherein the middle connecting plate 241 is provided at the end of the longitudinal beam extension 23, the satellite boxes 22 are provided on the middle connecting plate 241, and the middle connecting plate 241 is connected with the front longitudinal beam 12 to provide Y-direction support. The intermediate connecting bracket 242 connects the side of the side member extension panel 23 and the side of the front side member 12, and provides Y-direction support. In addition, the intermediate connecting plate 241 may be provided with lightening holes.

Alternatively, as shown in fig. 3, the intermediate connection plate 241 is provided as a connection flat plate. Because the two ends of the auxiliary energy absorption box 22 and the longitudinal beam extension plate 23 are provided with cavity structures, the requirements of direct screwing or welding processes of the auxiliary energy absorption box 22 and the longitudinal beam extension plate 23 are high, and the strength after connection is insufficient, mounting points are provided for the auxiliary energy absorption box 22 and the longitudinal beam extension plate 23 through the middle connecting plate 241, and the auxiliary energy absorption box 22 and the longitudinal beam extension plate 23 are respectively screwed or welded on two planes opposite to the connecting flat plate. In addition, the side edges of the connecting flat plates are welded to the front side rail 12 to provide Y-direction support.

Alternatively, as shown in fig. 4, the intermediate connection bracket 242 includes a bracket main body 2421, a stringer connection part 2422, and an extension plate connection part 2423. The intermediate linking bracket 242 links the side surface of the side member extension plate 23 and the side surface of the front side member 12, and the extending directions of the side member extension plate 23 and the front side member 12 are the same, so that the bracket main body 2421 is disposed to be inclined with respect to the side member extension plate 23 and the front side member 12 in order to improve the linking strength, thereby facilitating the reduction of the impact force in the Y direction. In addition, the longitudinal beam connecting part 2422 and the extension plate connecting part 2423 are respectively arranged at two ends of the bracket main body 2421, the longitudinal beam connecting part 2422 is welded with the front longitudinal beam 12, and the extension plate connecting part 2423 is welded with the longitudinal beam extension plate 23.

Alternatively, the side member connecting portion 2422 may have a flat plate-like structure so as to provide a welding point to be welded to the front side member 12, thereby forming a more firm welding surface. Since the rack main body 2421 is disposed obliquely with respect to the side member extension plate 23 and the front side member 12, an angle is formed between the flat plate-like structure and the rack main body 2421 in order to facilitate welding of the two. Wherein the side member connecting portions 2422 may be extended in the extending direction of the front side member 12 in order to better provide the welding position. The extension board connection part 2423 includes at least one connection leg extending outward along the end of the main frame part 2421, the number of the connection legs is not particularly limited, and the connection legs may be freely arranged according to the welding strength requirement and the welding space, and the connection legs are welded to the side surfaces of the longitudinal beam extension boards 23.

Alternatively, as shown in fig. 5, the longitudinal beam extension plate 23 includes an extension plate bottom plate 231 and an extension plate cover plate 232, the extension plate cover plate 232 is covered on the extension bottom plate, an extension plate cavity is formed between the extension plate cover plate 232 and the extension plate bottom plate 231, and the intermediate connecting bracket 242 is connected to the extension plate bottom plate 231, that is, the extension plate bottom plate 231 is the side close to the front longitudinal beam 12.

Optionally, both sides of the extension plate bottom plate 231 protrude outside the extension plate cover plate 232, so that a sufficient welding space is provided when the extension plate cover plate 232 is welded on the plate bottom plate, and the overall strength of the stringer extension plate 23 is better. Meanwhile, the extension panel bottom plate 231 is the side closer to the front side member 12, and can provide a larger attachment surface for the intermediate attachment bracket 242.

Another embodiment of the present application provides an automobile body structure, including the above embodiment the front end collision avoidance structure of an automobile.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automobile front-end collision avoidance structure, comprising:

the front end beam structure comprises a front anti-collision beam and front longitudinal beams respectively arranged at two ends of the front anti-collision beam; and the number of the first and second groups,

2. The front-end impact structure for an automobile according to claim 1, wherein said front impact extension panel includes an impact beam connection section and an energy absorption box connection section that are connected to each other;

3. The automobile front-end anti-collision structure according to claim 1, wherein the front anti-collision extension plate comprises an anti-collision extension main plate and anti-collision extension side plates respectively folded and arranged on two sides of the anti-collision extension main plate, and an anti-collision extension groove is defined between the anti-collision extension main plate and the two anti-collision extension side plates;

4. The front-end impact structure of claim 1, wherein the linking bracket structure includes an intermediate linking plate provided at an end of the side member extension plate, and an intermediate linking bracket connected between a side surface of the side member extension plate and a side surface of the front side member, the attachment energy-absorbing box is provided on the intermediate linking plate, and the intermediate linking plate is connected to the front side member.

5. The front-end impact structure of a vehicle as claimed in claim 4, wherein said intermediate connecting plate is provided as a connecting plate, said attachment energy absorption box and said side member extension plate are welded to two planes opposite to said connecting plate, respectively, and side edges of said connecting plate are welded to said front side member.

6. The front-end impact structure of a vehicle as claimed in claim 4, wherein said intermediate link bracket includes a bracket main body disposed obliquely, and a side member link portion and an extension plate link portion respectively provided at both ends of said bracket main body, said side member link portion being welded to said front side member, and said extension plate link portion being welded to said side member extension plate.

7. The automobile front-end anti-collision structure according to claim 6, wherein the longitudinal beam connecting portion is provided as a flat plate-like structure that forms an angle with the bracket main body;

8. The front-end impact structure of a vehicle as claimed in claim 4, wherein said side member extension panel includes an extension panel bottom panel, and an extension panel cover panel covering said extension panel bottom panel, an extension panel cavity being formed between said extension panel cover panel and said extension panel bottom panel, said intermediate connecting bracket being connected to said extension panel bottom panel.

9. The front-end impact structure of a vehicle as claimed in claim 8, wherein both sides of said extension floor protrude outside said extension floor cover.

10. An automobile body structure characterized by comprising the automobile front-end collision avoidance structure according to any one of claims 1 to 9.