CN208036010U - A kind of back seat reinforcing structure for cross beams - Google Patents

Abstract

The utility model provides a rear seat beam reinforcement structure, which relates to the technical field of automobiles. The reinforcement structure of the rear seat beam is installed between the left rear longitudinal beam and the inner panel of the door sill. The reinforcement structure includes a vertical plate and the first side plate and the second Two side panels, the first side panel is fixed on the side of the left rear longitudinal beam close to the inner panel of the threshold, and the second side panel is fixed on the side of the inner panel of the threshold close to the left rear longitudinal beam. The reinforcement structure of the utility model is configured to transfer part of the collision load received by the inner panel of the sill to the left rear longitudinal beam, increase the effective transmission of the force in the side collision, avoid the inner panel of the sill from being stressed alone, and improve the side rigidity of the vehicle body. Reduce side impact intrusion speed and side intrusion amount.

Description

Reinforcement structure of rear seat beam

technical field

The utility model relates to the technical field of automobiles, in particular to a rear seat beam reinforcement structure.

Background technique

C-NCAP is to test the crash safety performance of new models purchased on the market in accordance with stricter and more comprehensive requirements than the existing mandatory standards in my country. Objective vehicle information promotes the development and production of enterprises in accordance with higher safety standards, thereby effectively reducing injuries and losses caused by road traffic accidents. C-NCAP requires a frontal collision of a vehicle speed of 50km/h with a rigid fixed barrier with a 100% overlap rate, a vehicle speed of 64km/h with a deformable barrier with a 40% overlap rate of frontal collision, and deformable movement. Three kinds of collision tests, such as barrier speed 50km/h and vehicle side collision, calculate the scores of each test and the total score according to the test data, and determine the star rating by the total score.

With the gradual improvement of domestic collision safety requirements, the 2018 version of C-NCAP side collision requirements have also been increased accordingly. The weight of the side collision trolley has been increased from 950kg to 1400kg, and the side collision position has been moved back by 250mm, which puts forward higher requirements for the side collision of the whole vehicle.

Utility model content

One purpose of the present utility model is to provide a rear seat crossbeam reinforcement structure to solve the problem in the prior art that the rear seat crossbeam structure is weak and cannot meet the requirements of vehicle side collision.

A further object of the utility model is to make the three sides of the reinforced structure respectively connected with the left rear longitudinal beam, the inner panel of the threshold and the rear floor, so as to transmit the collision load received by the inner panel of the threshold to the rear longitudinal beam of the left, and reduce the impact on the inner panel of the threshold. The compression of the beam reduces the intrusion speed and intrusion amount of the rear door.

Another further purpose of the utility model is to provide reinforcement ribs on the reinforcement structure to enhance the bending resistance of the reinforcement structure.

In particular, the utility model provides a rear seat beam reinforcement structure installed between the left rear longitudinal beam and the inner panel of the door sill. And the first side panel and the second side panel formed by bending to the same side, wherein,

The first side panel is fixed on the side of the left rear longitudinal beam close to the door sill inner panel, the second side panel is fixed on the side of the door sill inner panel close to the left rear longitudinal beam, and the The reinforcement structure is configured to transfer a portion of the collision load experienced by the rocker inner panel to the left rear side member.

Optionally, the reinforcing structure further includes a third side plate and a fourth side plate formed by extending outwards from two ends of the vertical plate adjacent to the first side plate and bending to the same side, The fourth side board is fixed on the rear floor.

Optionally, the vertical plate is arranged parallel to the rear seat beam.

Optionally, a slit is provided between two adjacent side plates, so that the two adjacent side plates are relatively independent.

Optionally, the slit opening is circular.

Optionally, the vertical plate includes at least one reinforcing rib, one end of each reinforcing rib is close to the first side plate, and the opposite end thereof is close to the second side plate.

Optionally, each reinforcing rib is formed by a part of the vertical plate protruding toward a side away from the side plate.

Optionally, each reinforcing rib is a strip structure fixed on the vertical plate.

Optionally, the vertical plate is provided with lightening holes.

Optionally, a process hole is provided on the vertical plate.

The rear seat beam reinforcement structure of the utility model is installed between the left rear longitudinal beam and the inner panel of the sill. One side panel and the second side panel, the first side panel is fixed on the side of the left rear longitudinal beam close to the inner panel of the door sill, the second side panel is fixed on the side of the inner panel of the door sill close to the left rear longitudinal beam, and the reinforcement structure is constructed as Transmit part of the collision load on the inner panel of the sill to the left rear longitudinal beam, increase the effective transmission of the force in the side impact, avoid the inner panel of the sill alone under force, improve the side rigidity of the car body, and reduce the speed and amount of side impact intrusion .

Further, the reinforcing structure of the present invention is provided with reinforcing ribs, and since the length direction of the reinforcing ribs is parallel to the axial direction of the rear seat beam, the force transmission capacity of the reinforcing structure is further improved.

According to the following detailed description of specific embodiments of the utility model in conjunction with the accompanying drawings, those skilled in the art will be more aware of the above and other objectives, advantages and features of the utility model.

Description of drawings

Hereinafter, some specific embodiments of the present utility model will be described in detail in an exemplary rather than restrictive manner with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural diagram of the partial structure of the vehicle before the rear seat beam reinforcement structure is installed;

Fig. 2 is a schematic structural diagram of the partial structure of the vehicle after the rear seat beam reinforcement structure is installed;

Fig. 3 is a schematic structure diagram of the reinforcing structure shown in Fig. 2 .

Detailed ways

Fig. 1 is a schematic structural diagram of a partial structure of a vehicle before the rear seat beam reinforcement structure is installed. As shown in Figure 1, the door sill inner panel 3 in the partial structure of the vehicle is arranged parallel to the left rear longitudinal beam 2, the rear seat crossbeam 4 is vertically fixed at the door sill inner panel 3 and the left rear longitudinal beam 2, and one end of the crossbeam 4 abuts At the door sill inner panel 3, when the vehicle has a side collision as shown by the arrow in the figure, the beam 4 is used to support the vehicle body structure and prevent the door sill inner panel 3 from being deformed.

With the gradual improvement of domestic collision safety requirements, the 2018 version of C-NCAP side collision requirements have also been increased accordingly. The weight of the side collision trolley has been increased from 950kg to 1400kg, and the side collision position has been moved back by 250mm, which puts forward higher requirements for the side collision of the whole vehicle. It has been found through tests that the partial structure of vehicles meeting the side impact requirements of the 2015 version of C-NCAP in the prior art can no longer meet the side impact requirements of the 2018 version of C-NCAP. The specific reason is that when the collision load generated by the side collision is too large, the crossbeam 4 will bend toward the left rear longitudinal beam 2. After the crossbeam 4 is bent, the sill inner panel 3 will move and deform without the support of the crossbeam 4. The rear door cannot be effectively supported, and the deformation of the rear door increases the danger of passengers in the car. In view of the above problems, the applicant made improvements on the above local structure of the vehicle to meet the new side impact requirements.

Fig. 2 is a schematic structural diagram of a partial structure of the vehicle after the rear seat beam reinforcement structure is installed. As shown in Figure 2, a rear seat beam reinforcement structure is added to the local structure of the vehicle. The bending of the beam 4 is caused by the uneven force on both sides of the beam 4. From the structure shown in Figure 2, it can be seen that the side of the beam 4 close to the left rear longitudinal beam 2 is under a greater force. When the load on this side exceeds the load on the beam When the maximum force 4 itself can withstand, it will bend. In order to prevent the crossbeam 4 from bending, the force on the side crossbeam 4 should be reduced. Reinforcing structure 1 is installed between.

FIG. 3 is a schematic structural diagram of the reinforcing structure 1 shown in FIG. 2 . As shown in Figure 3, the reinforcement structure 1 includes a vertical plate 11 and two side plates, wherein the vertical plate 11 is a quadrangular plate structure, and the two side plates extend outward from the opposite ends of the vertical plate 11 and move toward the same The sides are bent and named as the first side panel 121 and the second side panel 122 respectively. The first side plate 121 is fixed on the side of the left rear side beam 2 close to the door sill inner panel 3 , and the second side plate 122 is fixed on the side of the door sill inner panel 3 close to the left rear side beam 2 . When the reinforcement structure 1 is made of metal material, the reinforcement structure 1 can be fixed by welding. When the reinforcement structure 1 is made of non-metallic material, the reinforcement structure 1 can be fixed by glue. After the reinforcement structure 1 is fixed, it is configured to transfer part of the collision load received by the door sill inner panel 3 to the left rear longitudinal beam 2, so as to reduce the stress on the cross beam. The reinforcement structure 1 is fixed between the left rear longitudinal beam 2 and the door sill inner panel 3, and forms a double-layer structure with the cross beam, which transmits the collision load to the left rear longitudinal beam 2, avoids the force on the door sill inner panel 3 alone, and reduces the force on the cross beam , improve the side stiffness of the car body to ensure the stable deformation of the car body in side collisions, reduce the intrusion speed and amount of side collisions, strengthen the effective protection of occupants during collisions, reduce the risk of occupants being injured, and improve the safety performance of the vehicle.

As shown in Fig. 3, in another embodiment of the present utility model, the reinforcement structure 1 further includes two ends of the vertical plate 11 adjacent to the first side plate 121 extending outwards and bent to the same side. The third side panel 123 and the fourth side panel 124 are fixed on the rear floor 5 . The four side plates are on the same side of the vertical plate 11, and the fourth side plate 124 of the reinforcement structure 1 is fixed to the rear floor 5, which can transmit part of the collision load to the rear floor 5, further ensuring the stable deformation of the vehicle body in side collisions , to reduce the side impact intrusion speed and side intrusion amount.

In order to prevent the beam from bending to the greatest extent, the vertical plate 11 is arranged parallel to the rear seat beam. When the vertical plate 11 is arranged parallel to the beam, it can bear a relatively large bending force.

As shown in Fig. 3, a slit is provided between two adjacent side plates, so that the two adjacent side plates are relatively independent. The split opening can be set as a circle. The setting of the split opening can avoid stamping cracking of the reinforcement structure 1 .

Referring to FIG. 3 , the vertical plate 11 further includes at least one reinforcing rib 13 , one end of the reinforcing rib 13 is close to the first side plate 121 , and the opposite end is close to the second side plate 122 . Since the longitudinal direction of the rib 13 (the direction indicated by the arrow in FIG. 3 ) is parallel to the axial direction of the rear seat beam (the direction indicated by the arrow in FIG. 2 ), the force transmission capacity of the reinforcement structure 1 can be further improved. In one embodiment, the reinforcing rib 13 may be formed by protruding part of the vertical plate 11 to the side away from the side plate. The reinforcement rib 13 of this structure can reduce the weight while enhancing the force transmission capacity of the reinforcement structure 1 . In other embodiments of the present utility model, the reinforcing rib 13 can also be a strip structure, fixed on the vertical plate 11 . The reinforcing bar 13 of the strip structure can be a section of steel bar or a section of other material products. The ribs 13 can be fixed to the vertical plate 11 by welding or gluing.

In another embodiment of the present invention, in order to reduce the weight of the vehicle and reduce pollution, the vertical plate 11 is provided with a weight-reducing hole 14 . Through software simulation, find the area with the least stress on the reinforced structure 1, and dig holes or reduce the weight of this area to achieve the purpose of weight reduction.

In order to facilitate installation, a process hole 15 is provided on the vertical plate 11, and the process hole 15 may be a positioning hole.

The reinforcing structure 1 can be integrally stamped and formed, has simple manufacturing process, high production efficiency and low production cost.

So far, those skilled in the art should recognize that although a number of exemplary embodiments of the present invention have been shown and described in detail herein, they can still be used according to the present invention without departing from the spirit and scope of the present invention. Many other variations or modifications that conform to the principles of the utility model are directly determined or derived from the disclosed content of the new model. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A rear seat beam reinforcement structure installed between the left rear longitudinal beam and the inner panel of the door sill, characterized in that the reinforcement structure includes a vertical plate and the opposite ends of the vertical plate extend outwards and The first side panel and the second side panel are bent from the same side, wherein, The first side panel is fixed on the side of the left rear longitudinal beam close to the door sill inner panel, the second side panel is fixed on the side of the door sill inner panel close to the left rear longitudinal beam, and the The reinforcement structure is configured to transfer a portion of the collision load experienced by the rocker inner panel to the left rear side member. 2. The rear seat beam reinforcement structure according to claim 1, characterized in that, the reinforcement structure further includes two ends of the vertical plate adjacent to the first side plate extending outward and toward the same The third side panel and the fourth side panel are formed by side bending, and the fourth side panel is fixed on the rear floor. 3. The rear seat beam reinforcement structure according to claim 1, wherein the vertical plate is arranged parallel to the rear seat beam. 4. The rear seat beam reinforcement structure according to claim 2, wherein a split opening is provided between two adjacent side panels, so that the two adjacent side panels are relatively independent. 5 . The rear seat beam reinforcement structure according to claim 4 , wherein the split opening is circular. 6 . 6. The rear seat beam reinforcement structure according to any one of claims 1-5, characterized in that the vertical plate includes at least one reinforcing rib, and one end of each reinforcing rib is close to the first side plate , the opposite end of which is close to the second side plate. 7 . The rear seat beam reinforcement structure according to claim 6 , wherein each reinforcing rib is formed by a part of the vertical plate protruding toward a side away from the side plate. 8 . 8 . The rear seat beam reinforcement structure according to claim 6 , wherein each of the reinforcing ribs is a strip-like structure fixed on the vertical plate. 8 . 9. The rear seat beam reinforcement structure according to claim 1, characterized in that, the vertical plate is provided with a weight reducing hole. 10. The rear seat beam reinforcement structure according to claim 1, characterized in that, the vertical plate is provided with a process hole.