阅读说明：本技术 一种汽车防撞梁和吸能盒的连接结构 (Connecting structure of automobile anti-collision beam and energy absorption box ) 是由 朱挺 陆兴旺 吴俊� 鲁慧才 臧宏建 杜丽娜 于 2019-09-17 设计创作，主要内容包括：本发明提供了一种汽车防撞梁和吸能盒的连接结构,属于汽车技术领域。它解决了如何使连接结构装配简单的同时提高整车碰撞的安全性能的问题。本汽车防撞梁和吸能盒的连接结构包括连接件,连接件采用钢板制成且呈环状,连接件包裹在吸能盒的外周上且通过紧固件固连,连接件靠近防撞梁的一端具有连接部,连接部与防撞梁的上下侧面抵靠且通过螺栓固连,螺栓沿竖向贯穿防撞梁。本连接结构装配简单,结构设计合理,连接强度高,在高速中心柱碰撞时不容易发生断裂,并且吸能盒连接端可压溃性能影响较小,对整车碰撞的安全性能有显著提高。(The invention provides a connecting structure of an automobile anti-collision beam and an energy absorption box, and belongs to the technical field of automobiles. The problem of how to make the connection structure assemble simple and improve the safety performance of whole car collision is solved. This connection structure of car anticollision roof beam and energy-absorbing box includes the connecting piece, and the connecting piece adopts the steel sheet to make and be cyclic annular, and the connecting piece parcel just links firmly through the fastener on the periphery of energy-absorbing box, and the one end that the connecting piece is close to the anticollision roof beam has connecting portion, and connecting portion support with the upper and lower side of anticollision roof beam and lean on and link firmly through the bolt, and the bolt runs through the anticollision roof beam along vertical. This connection structure assembly is simple, and structural design is reasonable, and joint strength is high, is difficult to the fracture of taking place when the high-speed center post collides to but the crash box link crushing performance influence is less, has showing the improvement to the security performance of whole car collision.)

1. The utility model provides a connection structure of car anticollision roof beam and energy-absorbing box, includes connecting piece (1), its characterized in that, connecting piece (1) adopt the steel sheet to make and be cyclic annular, connecting piece (1) parcel just links firmly through the fastener on the periphery of energy-absorbing box (a), the one end that connecting piece (1) is close to anticollision roof beam (b) has connecting portion (1a), connecting portion (1a) and the upper and lower side of anticollision roof beam (b) support to lean on and link firmly through bolt (3), bolt (3) are along vertical crashproof roof beam (b) that runs through.

2. The connecting structure of an automobile anti-collision beam and an energy absorption box according to claim 1, characterized in that the connecting piece (1) comprises an upper connecting plate (11) in a U shape and a lower connecting plate (12) in a U shape, the upper connecting plate (11) and the lower connecting plate (12) are respectively sleeved on the energy absorption box (a), and the upper connecting plate (11) and the lower connecting plate (12) are mutually overlapped and surround the periphery of the energy absorption box (a); the upper connecting plate (11), the lower connecting plate (12) and the overlapping part of the upper connecting plate and the lower connecting plate are fixedly connected with the energy absorption box (a) through fasteners.

3. The connecting structure of an anti-collision beam and an energy absorption box of an automobile according to claim 2, wherein the connecting portion (1a) comprises an upper connecting portion (1a1) located at one end of the upper connecting plate (11) close to the anti-collision beam (b) and extending towards the anti-collision beam (b) and a lower connecting portion (1a2) located at one end of the lower connecting plate (12) close to the anti-collision beam (b) and extending towards the anti-collision beam (b), the upper connecting portion (1a1) abuts against the upper side of the anti-collision beam (b), the lower connecting portion (1a2) abuts against the lower side of the anti-collision beam (b), and the bolt (3) sequentially penetrates through the upper connecting portion (1a1), the anti-collision beam (b) and the lower connecting portion (1a2) from top to bottom.

4. The connecting structure of an automobile impact beam and an energy absorption box according to claim 1, 2 or 3, characterized in that one end of the connecting piece (1) far away from the impact beam (b) is provided with an extension part (1b) extending along the length direction of the energy absorption box (a), and the extension part (1b) is fixedly connected with the energy absorption box (a) through a fastener.

5. The connecting structure of an impact beam and a crash box according to claim 4, wherein said extension portion (1b) has an outwardly bulging portion (1b 1).

6. The connecting structure of the automobile anti-collision beam and the energy absorption box according to claim 1, 2 or 3, characterized in that a sleeve (4) is sleeved on the bolt (3), and the sleeve (4) is arranged in the anti-collision beam (b) in a penetrating manner.

7. The connecting structure of an automobile anti-collision beam and an energy absorption box according to claim 1, 2 or 3, characterized in that the number of the bolts (3) is two, and the screw positions of the two bolts (3) correspond to the positions of the left side edge and the right side edge of the energy absorption box (a), respectively.

8. The connecting structure of an impact beam and a crash box for a vehicle according to claim 1, 2 or 3, wherein said impact beam (b) has therein a reinforcing cage (b1) arranged in a horizontal direction, and said bolt (3) passes through said reinforcing cage (b1) and is perpendicular to said reinforcing cage (b 1).

9. The connecting structure of an automobile impact beam and an energy absorption box according to claim 1, 2 or 3, wherein the fastener is a blind rivet.

Technical Field

The invention belongs to the technical field of automobiles, and relates to a connecting structure of an automobile anti-collision beam and an energy absorption box.

Background

With the popularization of automobiles and the maturation of automobile technology at the present stage, people pay more and more attention to the safety performance of automobiles, and the requirements of national regulations on the safety performance of automobiles are more and more strict. In the event of a collision, high-speed frontal collision frequently occurs and the mortality rate is high. In order to better protect the safety of passengers in the automobile, various large automobile companies increase the development strength of the safety performance of the automobile, optimize the structure of the automobile body, increase a force transmission channel, safety auxiliary equipment and the like, and accordingly improve the safety performance of the automobile.

The anti-collision beam assembly is a device which can absorb collision energy when an automobile is impacted. In a low-speed collision accident, the anti-collision beam assembly can completely absorb energy, so that important and expensive parts are protected from being damaged, and property loss is reduced; in high-speed collision, the anti-collision beam assembly can absorb and disperse energy, and the injury to a passenger compartment is reduced to the greatest extent.

Disclosure of Invention

The invention aims to provide a connecting structure of an automobile anti-collision beam and an energy absorption box, aiming at the problems in the prior art, and the invention solves the technical problem of improving the safety performance of the whole automobile collision while simplifying the assembly of the connecting structure.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a connection structure of car anticollision roof beam and energy-absorbing box, includes the connecting piece, its characterized in that, the connecting piece adopts the steel sheet to make and is cyclic annular, the connecting piece parcel just links firmly through the fastener on the periphery of energy-absorbing box, the one end that the connecting piece is close to the anticollision roof beam has connecting portion, connecting portion support with the upper and lower side of anticollision roof beam and lean on and link firmly through the bolt, the bolt is along vertical crashproof roof beam that runs through.

Compared with the prior art, the connecting structure of the automobile anti-collision beam and the energy absorption box is not only simple to assemble, but also not easy to break; the specific design principle is as follows: the connecting structure only comprises three parts, namely the connecting piece, the fastening piece and the bolt, and the connecting piece is annular and is matched with the connecting part, so that the connecting piece is very convenient to assemble with the energy absorption box and the anti-collision beam; meanwhile, the connecting piece is wrapped on the periphery of the energy absorption box, and the energy absorption box is positioned on the inner side of the anti-collision beam, so that when the inner side of the anti-collision beam bears the compressive load, the steel connecting piece and the energy absorption box bear the compressive load together; because the connecting piece is connected with the anti-collision beam through the connecting part, when the outer side of the connecting part of the energy absorption box and the anti-collision beam bears tensile load, the tensile load is borne by the steel connecting plate; through the design, the connecting piece is used as a main force bearing part in the collision process, and the high strength of the steel connecting plate can ensure that the connecting structure is not broken; moreover, through the design of the bolts vertically penetrating through the anti-collision beam, the bolts not only have the function of connecting the anti-collision beam with the connecting piece, but also can disperse the collision acting force into the anti-collision beam, so that the acting force is not concentrated on the top surface and the bottom surface of the anti-collision beam, and the connection between the steel connecting plate and the anti-collision beam is further ensured not to be broken; the impact on the crushing performance of the energy absorption box is small by combining the annular design of the connecting piece; and then guaranteed that the collision force that the anticollision roof beam received passes through the energy-absorbing box and transmits to whole car, guaranteed that the front end structure fully warp, the absorbed energy improves the security performance of whole car collision.

In the connecting structure of the automobile anti-collision beam and the energy absorption box, the connecting piece comprises a U-shaped upper connecting plate and a U-shaped lower connecting plate, the upper connecting plate and the lower connecting plate are respectively sleeved on the energy absorption box, and the upper connecting plate and the lower connecting plate are mutually overlapped and surround the periphery of the energy absorption box; the upper connecting plate, the lower connecting plate and the overlapped part of the upper connecting plate and the lower connecting plate are fixedly connected with the energy absorption box through fasteners. Through the design of the U-shaped upper connecting plate and the lower connecting plate, the connecting piece can be wrapped on the outer side of the energy absorption box by utilizing the overlapping fit of the upper connecting plate and the lower connecting plate, so that the energy absorption box and the connecting piece can jointly bear the inner side compression load generated during collision, and the collision safety performance of the whole vehicle is improved; and moreover, the connecting piece adopts a split design, so that the convenience of assembling the connecting piece and the energy absorption box is improved.

In the connection structure of foretell automobile anticollision roof beam and energy-absorbing box, connecting portion are including being located the one end that the upper junction plate is close to the anticollision roof beam and to the last connecting portion that the anticollision roof beam extends and being located the lower connecting portion that the one end that the lower junction plate is close to the anticollision roof beam just extends to the anticollision roof beam, it supports on the last side of anticollision roof beam to go up connecting portion, lower connecting portion support and lean on the downside of anticollision roof beam, the bolt from top to bottom passes connecting portion, anticollision roof beam and lower connecting portion in proper order. Through the design, the connecting piece and the anti-collision beam can be connected, and the function of the bolt is matched, so that the safety performance of collision of the whole vehicle is improved.

In the connection structure of the automobile anti-collision beam and the energy absorption box, one end of the connecting piece, which is far away from the anti-collision beam, is provided with the extension part extending along the length direction of the energy absorption box, and the extension part is fixedly connected with the energy absorption box through the fastening piece. Through the design of above extension, increased the area of being connected of connecting piece and energy-absorbing box, can improve this connection structure's joint strength like this for the difficult fracture that takes place in junction, thereby improve the security performance of whole car collision.

In the above-described connecting structure of the impact beam and the crash box for an automobile, the extension portion has a bulge portion bulging outward. The bulge of extension board can reduce its influence to the crushable performance of energy-absorbing box, makes the energy-absorbing box carry out abundant deformation conquassation in the collision to this better absorption collision can, thereby improve the security performance of whole car collision.

In the connection structure of the automobile anti-collision beam and the energy absorption box, the bolt is sleeved with the sleeve, and the sleeve penetrates through the anti-collision beam. Through above sleeve design, can be so that bolt itself is difficult for crooked in the collision for the bolt can be better with the transmission dispersion of collision power to the anticollision roof beam inside, with this security performance that improves whole car collision.

Preferably, in the connection structure of the automobile impact beam and the energy absorption box, the number of the bolts is two, and the positions of the screws of the two bolts correspond to the positions of the left side edge and the right side edge of the energy absorption box respectively. Through the arrangement design of the bolts, the collision force can be better transmitted and dispersed, and the force transmitted to the energy absorption box can be just opposite to the energy absorption box, so that the energy absorption box can better play a role, and the collision safety performance of the whole vehicle is improved.

In the connection structure of the automobile anti-collision beam and the energy absorption box, the anti-collision beam is internally provided with the reinforcing plate ribs arranged along the horizontal direction, and the bolts penetrate through the reinforcing plate ribs and are perpendicular to the reinforcing plate ribs. Through the cooperation of above bolt and reinforcing plate muscle for the crashproof roof beam collision force can be through the bolt transmission dispersion to the reinforcing plate muscle on, makes the effort not concentrate on the upper and lower side of crashproof roof beam, makes like this that crashproof roof beam and connecting piece pass through bolted connection's the difficult emergence fracture of junction, thereby improves the security performance of whole car collision.

In the connection structure of the automobile anti-collision beam and the energy absorption box, the fastener is a blind rivet. The self-plugging rivet has simple process and high connection strength; alternatively, the fastener may be a screw.

Compared with the prior art, this connection structure of car anticollision roof beam and energy-absorbing box has following advantage: this connection structure assembly is simple, and structural design is reasonable, and joint strength is high, is difficult to the fracture of taking place when the high-speed center post collides to but the crash box link crushing performance influence is less, has showing the improvement to the security performance of whole car collision.

Drawings

FIG. 1 is a schematic view of the connecting structure of the crash beam and the energy absorption box of the automobile.

Fig. 2 is a schematic view of the structure of the connecting piece matched with the bolt.

In the figure, 1, connecting piece; 11. an upper connecting plate; 12. a lower connecting plate; 1a, a connecting part; 1a1, upper connection; 1a2, lower link; 1b, an extension; 1b1, bumps; 3. a bolt; 4. a sleeve; a. an energy absorption box; b. an anti-collision beam; b1, reinforcing plate ribs.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Specifically, as shown in fig. 1, the automobile comprises an anti-collision beam b and an energy absorption box a which are made of aluminum alloy materials. This connection structure is including adopting the steel sheet to make and being annular connecting piece 1, and this connecting piece 1 parcel just links firmly through the fastener on the periphery of energy-absorbing box an, and connecting piece 1 is close to the one end of crashproof roof beam b and has connecting portion 1a, and connecting portion 1a supports with crashproof roof beam b's upper and lower side and leans on and link firmly through bolt 3. The bolts 3 are provided with two bolts and vertically penetrate through the anti-collision beam b, and the screw positions of the two bolts 3 correspond to the positions of the left side edge and the right side edge of the energy absorption box a respectively. Meanwhile, in the embodiment, the crash beam b is internally provided with a reinforcing plate rib b1 arranged along the horizontal direction, the bolt 3 is sleeved with the sleeve 4, and the sleeve 4 penetrates through the reinforcing plate rib b1 and is perpendicular to the reinforcing plate rib b 1.

More specifically, as shown in fig. 2, the connecting member 1 includes an upper connecting plate 11 having a U-shape and a lower connecting plate 12 having a U-shape, the upper connecting plate 11 and the lower connecting plate 12 are respectively fitted over the crash boxes a, and the upper connecting plate 11 and the lower connecting plate 12 are overlapped with each other and surround the peripheries of the crash boxes a; the upper connecting plate 11, the lower connecting plate 12 and the overlapping part of the upper connecting plate and the lower connecting plate are fixedly connected with the energy absorption box a through fasteners. The connecting portion 1a comprises an upper connecting portion 1a1 which is located at one end, close to the anti-collision beam b, of the upper connecting plate 11 and extends towards the anti-collision beam b and a lower connecting portion 1a2 which is located at one end, close to the anti-collision beam b, of the lower connecting plate 12 and extends towards the anti-collision beam b, the upper connecting portion 1a1 abuts against the upper side face of the anti-collision beam b, the lower connecting portion 1a2 abuts against the lower side face of the anti-collision beam b, and the bolts 3 sequentially penetrate through the upper connecting portion 1a1, the anti-collision beam b and the lower connecting. One end of the connecting piece 1, which is far away from the anti-collision beam b, is provided with an extending part 1b which extends along the length direction of the energy absorption box a, and the extending part 1b is fixedly connected with the energy absorption box a through a fastener. The extension portion 1b has a bulge portion 1b1 bulging outward. In this embodiment, the fastener is a blind rivet.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms of the connecting member 1, the upper connecting plate 11, the lower connecting plate 12, the connecting portion 1a, the upper connecting portion 1a1, the lower connecting portion 1a2, the extending portion 1b, the bump portion 1b1, the bolt 3, the sleeve 4, the crash box a, the impact beam b, the reinforcing cage b1, and the like are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.