CN216101974U

CN216101974U - Anti-collision beam assembly and car behind car

Info

Publication number: CN216101974U
Application number: CN202122574067.4U
Authority: CN
Inventors: 周清; 王聪; 罗培锋; 薛军; 王琛; 谢锋
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-03-22
Anticipated expiration: 2031-10-25

Abstract

The utility model relates to the technical field of automobile collision safety, and discloses an automobile rear anti-collision beam assembly and an automobile. The energy absorption box in the automobile rear anti-collision beam assembly is of an integrated structure, so that the connection strength of the energy absorption box can be effectively enhanced, the number of parts is reduced, the installation procedure is simplified, and the light weight and the cost control of an automobile body are realized.

Description

Anti-collision beam assembly and car behind car

Technical Field

The utility model relates to the technical field of automobile collision safety, in particular to an automobile rear anti-collision beam assembly and an automobile.

Background

The rear anti-collision beam of the automobile is a transverse structural member arranged at the rearmost end of the automobile body, can absorb impact generated by collision and plays a role in safety protection. When low-speed collision occurs, the damage to the peripheral structure of the vehicle body is reduced, the normal use of the vehicle is ensured, and the subsequent maintenance cost is reduced; when high-speed collision occurs, the safety of passengers in the vehicle can be effectively protected, and the deformation of parts in the vehicle body can be reduced.

The spare part quantity of current back anticollision roof beam assembly is many, and is from great, connects after each part is processed alone, and its structure is complicated, and manufacturing procedure is loaded down with trivial details, is unfavorable for realizing whole car lightweight and cost management and control, and the anticollision roof beam assembly that has assembled welds with the automobile body and even, leads to the difficult change of anticollision roof beam assembly after the emergence collision, and cost of maintenance is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automobile rear anti-collision beam assembly and an automobile, and aims to solve the problems that the existing automobile rear anti-collision beam assembly is large in number of parts and heavy in self weight.

In order to achieve the above object, the present invention provides an automobile rear impact beam assembly, including: including back anticollision roof beam and respectively with the front side fixed connection's at the left and right both ends of back anticollision roof beam energy-absorbing box, the energy-absorbing box includes the box body and is used for the connecting piece with the automobile body coupling, the rear end of box body be fixed in on the front side of back anticollision roof beam, the connecting piece is fixed in the outward flange of the front end of box body, box body and connecting piece integrated into one piece, the cross section of box body is crescent from its rear end to the front end.

Preferably, the front end and the rear end of the box body are both provided with openings.

Preferably, the box body is in a frustum pyramid shape.

Preferably, four side edges of the box body are all arc-shaped, and the four side edges of the box body are respectively provided with a collapsing rib, and the collapsing ribs and the box body are integrally formed.

Preferably, the number of the connecting pieces is two or more, and each connecting piece is fixed on different side edges of the front end of the box body.

Preferably, the connecting piece is established to be three, the side of going up of box body is equipped with the welding limit, and is three the connecting piece is located respectively the left side, the right side and the downside edge of box body front end.

Preferably, the front side of the rear anti-collision beam is provided with an installation groove with an opening facing the front of the vehicle body, and the box body is partially embedded into the installation groove.

Preferably, the energy absorption boxes are sheet metal parts, and the energy absorption boxes are symmetrically arranged at the left end and the right end of the rear anti-collision beam.

The utility model further provides an automobile which comprises an automobile body and the automobile rear anti-collision beam assembly, wherein the connecting piece is fixedly connected with the automobile body.

The utility model provides an automobile rear anti-collision beam assembly and an automobile, and compared with the prior art, the automobile rear anti-collision beam assembly has the beneficial effects that:

the automobile rear anti-collision beam assembly provided by the embodiment of the utility model comprises a rear anti-collision beam and the energy absorption boxes respectively fixedly connected with the front sides of the left end and the right end of the rear anti-collision beam, wherein each energy absorption box comprises a box body and a connecting piece used for being connected with an automobile body, and the box bodies and the connecting pieces are integrally formed, so that the connecting strength of the energy absorption boxes can be effectively enhanced, the number of parts is reduced, the light weight is realized, the processing procedure is simplified, and the production efficiency is improved.

Further, the cross section of box body is followed its rear end and is crescent to the front end, and the box body is the prismoid form of opening around one, and sets up the muscle that contracts of ulcerate on four circular-arc lateral edges of energy-absorbing box, and reducible materials from this reduces the dead weight, transmits the collision impact better simultaneously, promotes the energy-absorbing effect.

Furthermore, the connecting pieces are respectively arranged on the left side, the right side and the lower side edge of the front end of the box body, connecting holes are formed in the connecting pieces, and the energy absorption box is connected with the automobile body through the connecting holes through bolts, so that the rear anti-collision beam assembly of the automobile is detachably connected, and subsequent maintenance and replacement are facilitated.

Drawings

Fig. 1 is a first structural schematic diagram of an automobile rear impact beam assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a rear impact beam assembly of an automobile according to an embodiment of the present invention.

Fig. 3 is a top view of an automobile rear impact beam assembly according to an embodiment of the present invention.

FIG. 4 is a first schematic structural diagram of a crash box according to an embodiment of the utility model.

FIG. 5 is a second schematic structural view of a crash box according to an embodiment of the utility model.

Fig. 6 is a schematic position diagram of the connection between the rear impact beam assembly and the vehicle body of the vehicle according to the embodiment of the utility model.

The reference symbols in the drawings denote the following: 100. a rear impact beam assembly;

1. a rear impact beam; 11. mounting grooves; 12. a first via hole; 13. a second via hole; 14. a tow hook mounting hole;

2. an energy absorption box; 21. a box body; 22. a connecting member; 23. collapsing ribs; 24. welding edges; 25. connecting holes;

3. a rear floor assembly;

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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.

It will be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first", "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.

It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in a specific case by those of ordinary skill in the art.

As shown in fig. 1, 2 and 3, an embodiment of the present invention provides an automobile rear anti-collision beam assembly 100, which includes a rear anti-collision beam 1 and energy absorption boxes 2 fixedly connected to front sides of left and right ends of the rear anti-collision beam 1, where the energy absorption boxes 2 include box bodies 21 and connecting members 22 for connecting to an automobile body, a rear end of each box body 21 is fixed to a front side of the rear anti-collision beam 1, the connecting members 22 are fixed to outer edges of front ends of the box bodies 21, and the box bodies 21 and the connecting members 22 are integrally formed.

As a preferred embodiment, the rear impact beam 1 is in a long arc shape, and the height of the rear impact beam 1 is set to 90 mm-95 mm, further, the front side of the rear impact beam 1 is provided with a mounting groove 11 with an opening facing the front of the vehicle body to provide a mounting space for the energy absorption box 2, the mounting groove 11 is located at the left and right ends of the rear impact beam 1, the cross section of the mounting groove 11 is in a U shape, the box body 21 is partially embedded into the U-shaped mounting groove 11, and in the specific implementation, the box body 21 is partially embedded into the U-shaped mounting groove 11 and fixedly connected by welding, so that the two energy absorption boxes 2 are respectively fixed at the front sides of the left and right ends of the rear impact beam 1. In addition, the cross-section of the middle part of the rear anti-collision beam 1 is W-shaped, so that the deformation rate of the rear anti-collision beam 1 when being impacted can be effectively reduced, and the impact resistance and the bending resistance of the rear anti-collision beam 1 are improved.

Preferably, in other preferred embodiments, one end of the rear anti-collision beam 1 is provided with a tow hook mounting hole 14, the tow hook mounting hole 14 is integrated on the rear anti-collision beam 1, the towing function is achieved, the road rescue is facilitated, the use space of the rear anti-collision beam assembly is fully utilized, the vehicle body structure is optimized, and the functionality of the rear anti-collision beam assembly of the automobile is improved.

In addition, back anticollision roof beam 1 still is equipped with the installation via hole that is used for temporarily passing through multiplexer utensil, specifically sets up to, and the both ends of back anticollision roof beam 1 are equipped with first via hole 12 and second via hole 13, and the hole site is passed through temporarily for multiplexer utensil when installing the automobile back anticollision roof beam assembly on the automobile body to first via hole 12 and second via hole 13.

As shown in fig. 4 and 5, in other preferred embodiments, openings are formed at the front end and the rear end of the box body 21, and the front opening and the rear opening of the box body 21 can effectively reduce the weight of the energy absorption box 2 and the oil consumption of the whole vehicle; the cross section of the box body 21 is gradually increased from the rear end to the front end, specifically, the box body 21 is in a quadrangular frustum pyramid shape with a front opening and a rear opening, so that on one hand, the box body can better transmit collision energy, and on the other hand, the box body can reduce materials and reduce the dead weight of the energy absorption box 2.

As shown in fig. 4 and 5, preferably, in other preferred embodiments, four side edges of the box 21 are all configured to be circular arc-shaped, and further, the four circular arc-shaped side edges of the box 21 are respectively provided with the crush ribs 23, so that when the vehicle is impacted by external impact, the crush ribs 23 can deform to absorb the external impact load, and the crush ribs 23 are integrally formed with the box 21, and the structure is simple and the functionality is strong. The crush ribs 23 are concave ribs for absorbing collision energy.

In order to realize whole car lightweight and cost management and control, energy-absorbing box 2 is formed by panel through punching press integrated into one piece bending weld after, and energy-absorbing box 2 includes box body 21 and is used for the connecting piece 22 with the automobile body coupling, and based on this, box body 21 and connecting piece 22 structure as an organic whole make energy-absorbing box 2's self joint strength stronger from this, and part quantity obviously reduces, has simplified the assembly process simultaneously.

Preferably, connecting piece 22 establishes to be three, and left side, right side and the lower side edge of box body front end are located respectively to three connecting piece 22, all are equipped with connecting hole 25 on the three connecting piece 22, and bolted connection is passed through with the automobile body rear portion to crashproof roof beam assembly 100 behind the car, and it is convenient to dismantle.

The embodiment of the utility model also provides an automobile, as shown in fig. 6, which comprises an automobile body and the automobile rear anti-collision beam assembly 100, wherein the connecting piece 22 of the automobile rear anti-collision beam assembly 100 is fixedly connected with the rear part of the automobile body, specifically, the automobile rear anti-collision beam assembly 100 is in bolt connection with the rear floor assembly 3 through the connecting hole 25 on the connecting piece 22, and a transverse reinforcing beam is formed at the rear part of the automobile body, so that the torsional rigidity is effectively improved. In addition, the bolt connection is adopted, so that the connection strength can be ensured, the replacement convenience is improved, and the subsequent maintenance cost is reduced.

To sum up, the embodiment of the utility model provides an automobile rear anti-collision beam assembly and an automobile, when the automobile is collided at the rear part, the rear anti-collision beam 1 deforms, absorbs a part of collision load and transmits the part of collision load to an energy absorption box 2, a crumple rib on the energy absorption box 2 plastically deforms, the collision impact is absorbed, the anti-collision capacity is improved, the safety of passengers in the automobile can be effectively protected, and the deformation of parts in the automobile body can be reduced; the automobile rear anti-collision beam assembly 100 comprises a rear anti-collision beam 1 and an energy absorption box 2, the energy absorption box comprises a box body 21 and a connecting piece 22 used for being connected with an automobile body, and the box body 21 and the connecting piece 22 are integrally formed.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an anticollision roof beam assembly behind car which characterized in that: including back anticollision roof beam, the front side at the left and right both ends of back anticollision roof beam is fixedly connected with energy-absorbing box respectively, the energy-absorbing box includes the box body and is used for the connecting piece with the automobile body coupling, the rear end of box body be fixed in on the front side of back anticollision roof beam, the connecting piece is fixed in the outward flange of the front end of box body, box body and connecting piece integrated into one piece, the cross section of box body is crescent from its rear end to the front end.

2. The automobile rear impact beam assembly of claim 1, wherein: the front end and the rear end of the box body are provided with openings.

3. The automobile rear impact beam assembly of claim 1, wherein: the box body is in a prismoid shape.

4. The automobile rear impact beam assembly of claim 1, wherein: four lateral edges of the box body are all set to be circular-arc-shaped, and the four lateral edges of the box body are respectively provided with a collapsing rib, and the collapsing ribs and the box body are integrally formed.

5. The automobile rear impact beam assembly of claim 1, wherein: the connecting pieces are more than two, and each connecting piece is fixed on different side edges of the front end of the box body respectively.

6. The automobile rear impact beam assembly of claim 5, wherein: the connecting piece is established to be three, the side of going up of box body is equipped with the welding limit, and is three the connecting piece is located respectively the left side, the right side and the downside edge of box body front end.

7. The automobile rear impact beam assembly of claim 1, wherein: the front side of back anticollision roof beam is equipped with the opening and towards the mounting groove in automobile body the place ahead, box body part imbeds in the mounting groove.

8. The automobile rear impact beam assembly of claim 1, wherein: the energy absorption boxes are sheet metal parts and are symmetrically arranged at the left end and the right end of the rear anti-collision beam.

9. An automobile, characterized in that: the automobile rear anti-collision beam assembly comprises an automobile body and the automobile rear anti-collision beam assembly as claimed in any one of claims 1 to 8, wherein the connecting piece is fixedly connected with the automobile body.