CN216101977U - Arch bridge type anti-collision beam and automobile - Google Patents

Abstract

The application provides an arched bridge formula anticollision roof beam includes: the cross section area of the main body of the anti-collision beam from the top to the end part is gradually increased; the end part of the anti-collision beam main body is provided with a mounting end face used for being connected with a vehicle body longitudinal beam. When the anti-collision beam is acted by collision force, the anti-collision beam with the arch structure can bear larger load, and the received collision force is dispersed and transmitted to the two ends of the anti-collision beam, so that good load dispersing capacity is achieved; the main body of the anti-collision beam is in a structural design with a narrow middle part and wide two ends, so that the parts closer to the end parts of the two ends can bear larger load; the end parts with wider two ends can be used as energy absorption structures at two ends of the anti-collision beam main body, so that loads can be effectively absorbed and transmitted to the longitudinal beam, an additional energy absorption box structure and a mounting plate structure are not needed when the anti-collision beam main body is connected with the longitudinal beam of the automobile body, and the anti-collision beam main body has double functions of energy absorption and mounting.

Description

Arch bridge type anti-collision beam and automobile

Technical Field

The application relates to the technical field of automobile body parts, in particular to an arch bridge type anti-collision beam and an automobile using the same.

Background

The automobile anti-collision beam is used as an important energy absorption part in front and rear collision and plays an important role in passive safety of an automobile. At present, steel or aluminum alloy is mostly adopted as an anti-collision beam material in mainstream vehicle models, but the modes of stamping, extruding, casting and the like are limited by a forming process, and the anti-collision beam with a complex structure cannot be manufactured; plastic impact beams are relatively easy to form, but are also subject to forming process limitations and low market acceptance. Therefore, the manufacturing of impact beams often fails some good manufacturing ideas due to process feasibility. In addition, crashproof roof beam collision needs the mid portion to avoid buckling, the regional crushing energy-absorbing that needs of both sides energy-absorbing box, it is regional that the energy-absorbing box is dispersed by crashproof roof beam body to whole the collision energy that needs the crashproof roof beam to transmit the longeron, but at present most crashproof roof beam body can be more or less buckled in the collision, consequently, need design a novel structure's crashproof roof beam, make it have good dispersion ability, overcome traditional manufacturing process restriction.

SUMMERY OF THE UTILITY MODEL

The application provides an arch bridge formula anticollision roof beam and car to solve current anticollision roof beam and make the defect, improve its bearing and load dispersion's ability.

In order to solve the problems, the utility model is realized as follows:

the application provides an arched bridge formula anticollision roof beam includes:

the cross section area of the main anti-collision beam body from the top to the end part is gradually increased;

the end part of the anti-collision beam main body is provided with a mounting end face used for being connected with a vehicle body longitudinal beam.

Optionally, the mounting end face and the outer side of the end portion of the impact beam main body form a wedge-shaped longitudinal section.

Optionally, the mounting end face is provided with a plurality of connecting holes penetrating through the anti-collision beam main body, and the connecting holes are used for being connected with the vehicle body longitudinal beam.

Optionally, the number of the connecting holes is three, and the three connecting holes are distributed in a triangular shape.

Optionally, the main body of the impact beam is an axisymmetric arc structure.

Optionally, a cavity is arranged inside the anti-collision beam.

Optionally, a stiffener is disposed within the cavity.

Optionally, the impact beam main body is an integrally formed member.

Correspondingly, the application also provides an automobile comprising the arch bridge type anti-collision beam.

Compared with the prior art, the application at least obtains the following technical effects:

according to the arch bridge type anti-collision beam and the automobile, when the anti-collision beam is under the action of collision force, the anti-collision beam of the arch structure transmits the collision force to the adjacent parts along the length direction and the width direction of the automobile body, so that all parts of the arch structure are mutually extruded, and larger load can be borne, and thus the received collision force is transmitted to the two ends of the anti-collision beam in a dispersed manner, and good load dispersing capacity is achieved; the main body of the anti-collision beam is in a structural design with a narrow middle part and wide two ends, so that the part closer to the end parts of the two ends can bear larger load, and the end parts of the two ends are wider, so that the end parts of the two ends can be used as energy absorption structures at the two ends of the main body of the anti-collision beam to play a role of energy absorption, effectively absorb the load and transmit the load to a longitudinal beam; due to the symmetrical design of the main body of the anti-collision beam, the error-proof design can be reduced, the time cost caused by assembly during production and maintenance of workers is reduced, and the production efficiency and the maintenance economy are improved; printing integrated into one piece mode through 3D, making crashproof roof beam main part surface seal, middle vacuole formation, can set up the additional strengthening of different patterns according to the performance needs in the cavity, overcome the manufacturing process restriction.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.

Fig. 1 is a schematic front view of an arch bridge type impact beam according to an embodiment of the present invention;

FIG. 2 is an isometric view of an arched bridge impact beam according to an embodiment of the present invention;

FIG. 3 is a schematic bottom view of an arched bridge impact beam according to an embodiment of the present invention;

fig. 4 is a schematic view of the internal structure of an arch bridge type impact beam according to an embodiment of the utility model;

fig. 5 is a schematic view of the cooperation between the arch bridge type impact beam and the longitudinal beam according to the embodiment of the utility model.

Description of the reference numerals

1-main body of the anti-collision beam, 11-end part, 111-mounting end surface, 112-wedge shape, 113-connecting hole, 12-reinforcing rib, 2-longitudinal beam and 21-longitudinal beam end plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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 invention.

In the related art, the complex-structure impact beam is difficult to be integrally formed, and therefore, the structure with excellent performance is often abandoned due to process feasibility when the impact beam is manufactured. In addition, crashproof roof beam collision needs the mid portion to avoid buckling, and the energy-absorbing box of both sides is regional needs the conquassation energy-absorbing, and the energy-absorbing box is regional by crashproof roof beam body dispersion with crashproof roof beam's collision energy as a whole to transmit the longeron, but most crashproof roof beam body can be more or less buckled in the collision at present, and is relatively poor to bearing and the dispersion ability of load.

In view of this, in order to improve the bearing capacity of the impact beam, make it have good load dispersion ability, overcome traditional manufacturing process restriction, provide an arch bridge type impact beam of this application.

Referring to fig. 1, there is shown a schematic front view of an arch bridge impact beam of the present application. As shown in fig. 1, the arch bridge type impact beam comprises an impact beam main body 1, wherein the impact beam main body 1 is of an arc structure, and the cross-sectional area of the impact beam main body 1 from the top to the end 11 is gradually increased; the end 11 of the impact beam body 1 is provided with an attachment end surface 111 for connecting with a vehicle body side member.

In the present embodiment, the impact beam body 1 has an arc structure, which may be an arch structure, and the end portions 11 at both ends are provided with mounting end surfaces 111 to connect with the vehicle body longitudinal beam. On the basis of the arch structure, the cross section area of the main body 1 of the anti-collision beam gradually increases from the top to the direction of the end parts 11 at the two ends of the main body 1 of the anti-collision beam. The concrete expression is that the radius of curvature of the outer cambered surface of the anti-collision beam main body facing the outside of the vehicle body is larger than the radius of curvature of the inner cambered surface facing the inside of the vehicle body, and the formed anti-collision beam main body is of a structure with a narrow middle part and wide two ends. Receive the crashworthiness effect at the anticollision roof beam, the anticollision roof beam of domes transmits the crashworthiness for adjacent part along automobile body length direction and automobile body width direction, makes each part of domes extrude each other, can bear great load, from this with the crashworthiness that receives toward crashworthiness both ends dispersion transmission, reaches the ability of good dispersed load. The anti-collision beam main body is of a structure with a narrow middle part and wide two ends, so that the load borne by the part which is closer to the end parts of the two ends is larger, the end parts of the two ends are wider, the end parts of the two ends can be used as energy absorption structures at the two ends of the anti-collision beam main body, the energy absorption effect is achieved, the load is effectively absorbed and transmitted to the longitudinal beam, an additional energy absorption box structure and an installation plate structure are not needed when the anti-collision beam main body is connected with the longitudinal beam of the automobile body, and the dual functions of energy absorption and installation are achieved.

Based on the arch bridge type anti-collision beam, the application provides the following specific examples, and the examples can be combined arbitrarily to form a new arch bridge type anti-collision beam on the premise of not interfering with each other. It should be understood that the new type of arched bridge impact beam formed by any combination of the examples is intended to fall within the scope of the present application.

With continued reference to fig. 1, in one possible embodiment, the mounting end surface 111 forms a wedge-shaped longitudinal section with the outer side of the impact beam body end 11.

In the present embodiment, the attachment end surface 111 provided at the end portion 11 of the impact beam body 1 and the outer side of the end portion 11 form a wedge-shaped longitudinal section. In fig. 1, the longitudinal section of the outer side of the two end parts 11 facing the outside of the vehicle body is in a wedge shape 112, and the tip of the wedge shape 112 faces the outside of the vehicle body, so that the contact surface of the end parts and the vehicle body longitudinal beam is increased, and the load bearing capacity of the end parts of the main body of the anti-collision beam is strengthened. The mounting end face arranged at the position can be parallel to the width direction of the vehicle body, so that the anti-collision beam and the longitudinal beam end plate can be mounted adaptively, a load transmission path is guided, and the load is transmitted to the longitudinal beam conveniently.

Referring to fig. 2, an isometric view of an arch bridge impact beam is shown. As shown in fig. 2, in one possible embodiment, the mounting end surface 11 is opened with a plurality of connecting holes 113 penetrating through the impact beam body 1 for connecting with the vehicle body side member.

In the present embodiment, the attachment end surface 11 is provided with a plurality of coupling holes 113 penetrating the impact beam body 1 so as to be coupled to the vehicle side member. Wherein, the connecting hole can be the bolt hole to bolted connection between messenger's anticollision roof beam and the longeron end plate, operation simple process reduces welding process and cost.

Referring to fig. 3, a bottom view schematic of an arch bridge impact beam is shown. In one possible embodiment, as shown in fig. 3, the connecting holes 113 include three connecting holes, and the three connecting holes are distributed in a triangular shape.

In this embodiment, three connecting holes 113 that run through anticollision roof beam main part 1 are seted up to mounting surface 11, and three connecting hole 113 is triangle-shaped distribution on mounting surface 11, and in some examples, three connecting hole can be isosceles triangle-shaped distribution or equilateral triangle-shaped distribution, because triangle-shaped's stability, does benefit to the fastness when anticollision roof beam is connected with the longeron. In addition, in some examples, the mounting end face can be provided with four connecting holes penetrating through the main body of the anti-collision beam, and the four-point connection is formed between the mounting end face and the longitudinal beam.

With continued reference to fig. 1, in one possible embodiment, the impact beam body is an axisymmetric arcuate structure.

In this embodiment, the impact beam main body has a symmetrical arc structure, and the impact beam main body here may have a symmetrical structure not only in the left-right direction but also in the up-down direction. Here, "left" and "right" refer to left and right positions of the vehicle body, and "up" and "down" refer to up and down positions of the vehicle body. The setting of symmetrical structure makes the anticollision roof beam when the atress, can be more even to both ends tip dispersed load. In addition, the anti-collision beam is arranged to be of a left-right symmetrical structure and a top-bottom symmetrical structure, so that the mistake proofing design can be reduced, the time cost caused by assembly during production, installation and maintenance of workers can be reduced, and the production efficiency and the maintenance economy can be improved.

In one possible embodiment, a cavity is provided inside the impact beam.

In this embodiment, the outer surface of the main body of the anti-collision beam is closed, and the middle of the main body of the anti-collision beam is provided with the cavity, so that the strength and rigidity of the main body of the anti-collision beam can be improved under the condition that the weight of the main body of the anti-collision beam is reduced as much as possible, and the light-weight requirement is met while the strength performance is met. The two ends of the main body of the anti-collision beam are wide, and the design of the cavity is combined, so that the energy absorption function of the end parts at the two ends as an energy absorption structure is further strengthened, an additional energy absorption box and an installation plate structure are not needed between the anti-collision beam and the longitudinal beam, and a related welding process flow for installation between the anti-collision beam and the energy absorption box and the installation plate structure is not needed.

Referring to fig. 4, a schematic view of the internal structure of an arch bridge impact beam is shown. In one possible embodiment, shown in fig. 4, ribs 12 are provided within the cavity.

In this embodiment, a reinforcing structure may be provided inside the cavity for reinforcement. The reinforcing structure inside the cavity can be set according to the use performance requirement, and in the figure 4, the reinforcing ribs 12 in a skeleton shape are arranged inside the cavity so as to strengthen the performance of the anti-collision beam. In some examples, a reinforcing plate, a net-shaped supporting rib and the like can be arranged inside the cavity, and a certain light-weight reinforcing filler can be filled in the cavity.

In one possible embodiment, the impact beam body is an integrally formed component.

In the present embodiment, the impact beam is formed by integral molding. In some examples, the anticollision roof beam can adopt 3D to print the shaping, adopts 3D to print and can overcome the arch anticollision roof beam and be difficult to the problem of integrated into one piece shaping, and can make closed cavity structure to according to performance needs, set up the additional strengthening of different styles in its inside, through 3D printing shaping, the complicated anticollision roof beam of this kind of inner structure also can print the shaping in the lump, overcomes the manufacturing process restriction, reduces welding cost, and reduces numerous and complicated welding and assembling process.

Correspondingly, the application also provides an automobile comprising the arch bridge type anti-collision beam. Referring to fig. 5, a schematic view of the fit between an arch bridge impact beam and a stringer is shown. As shown in fig. 5, the end portion 11 of the impact beam body 1 is connected to the side member end plate 21 at the end portion of the side member 2 by screwing. The outer surface of the main body of the anti-collision beam is closed, a cavity is formed in the middle of the main body of the anti-collision beam, and reinforcing structures in different styles can be arranged in the cavity according to performance requirements; receive the crashworthiness effect at the anticollision roof beam, the anticollision roof beam of domes transmits the crashworthiness for adjacent part along automobile body length direction and automobile body width direction, makes each part of domes extrude each other, can bear great load, from this with the crashworthiness that receives toward crashworthiness both ends dispersion transmission, reaches the ability of good dispersed load. The anti-collision beam main body is of a structure with a narrow middle part and wide two ends, so that the load borne by the part which is closer to the end parts of the two ends is larger, the end parts of the two ends are wider, the end parts of the two ends can be used as energy absorption structures at the two ends of the anti-collision beam main body, the energy absorption effect is achieved, the load is effectively absorbed and transmitted to the longitudinal beam, an additional energy absorption box structure and an installation plate structure are not needed when the anti-collision beam main body is connected with the longitudinal beam of the automobile body, and the dual functions of energy absorption and installation are achieved.

It should be noted that, in the embodiments, terms of orientation such as "front and rear" refer to the front and rear orientation of the vehicle body, such as "up and down" refer to the up and down orientation of the vehicle body, such as "left and right" refer to the left and right orientation of the vehicle body, such as "inside and outside" refer to the inside and outside directions toward the vehicle body.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It should be understood that while the present specification has described preferred embodiments of the present application, additional variations and modifications of those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be 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 terminal 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 terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The foregoing detailed description is directed to an arch bridge type impact beam and an automobile provided by the present application, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (9)

1. An arch bridge impact beam, comprising:

the anti-collision beam comprises an anti-collision beam main body (1), wherein the anti-collision beam main body (1) is of an arc-shaped structure, and the cross section area of the anti-collision beam main body (1) from the top to an end part (11) is gradually increased;

the end portion (11) of the anti-collision beam main body (1) is provided with an installation end surface (111) used for being connected with a vehicle body longitudinal beam.

2. An arch bridge impact beam according to claim 1, characterised in that said mounting end surface (111) forms a wedge-shaped longitudinal section with the outer side of said impact beam body end (11).

3. An arch bridge type anti-collision beam according to claim 1 or 2, characterized in that the mounting end face (111) is provided with a plurality of connecting holes (113) penetrating through the anti-collision beam main body (1), and the connecting holes (113) are used for connecting with the vehicle body longitudinal beam.

4. An arched bridge impact beam according to claim 3, characterised in that said attachment holes (113) comprise three, said three attachment holes being distributed triangularly.

5. An arch bridge impact beam according to claim 1, characterized in that said impact beam body (1) is of axisymmetric arched configuration.

6. An arch bridge impact beam according to claim 1, wherein a cavity is provided within said impact beam.

7. An arch bridge impact beam according to claim 6, wherein reinforcing ribs (12) are provided in said cavity.

8. An arch bridge impact beam as defined in claim 1, wherein said impact beam body is an integrally formed member.

9. An automobile, characterized in that it comprises an arched bridge impact beam according to any one of claims 1 to 8.

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