CN217918111U

CN217918111U - Vehicle side collision protective structure

Info

Publication number: CN217918111U
Application number: CN202222403393.3U
Authority: CN
Inventors: 谭禹; 钟银辉
Original assignee: Chongqing Branch of DFSK Motor Co Ltd
Current assignee: Chongqing Branch of DFSK Motor Co Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-11-29
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a vehicle side collision protection structure, which comprises a B-pillar, a doorsill beam and a seat mounting beam, wherein the B-pillar comprises a B-pillar outer plate which is fixed on the doorsill beam; the seat mounting cross beam is positioned between the B columns on two sides of the vehicle body and is connected with the threshold beam; the B-column outer plate comprises a B-column upper plate and a B-column lower plate, and a plane formed by a splicing line of the B-column upper plate and the B-column lower plate and an R point of a driver is parallel to an XY plane; the B column upper plate is provided with a B column reinforcing plate, and the B column reinforcing plate is positioned between the B column upper plate and the B column inner plate; the B-column reinforcing plate extends in the Z direction to form a first extension part, and extends in the Z direction to form a second extension part; the first extending part extends to the position covering the neck part of the driver seat, and the second extending part extends to the position covering the abdomen part of the driver seat in the Z direction. The utility model discloses a protective structure furthest has kept the lightweight when realizing that intensity improves.

Description

Vehicle side collision protective structure

Technical Field

The utility model relates to a vehicle side collision protective structure belongs to car body structure technical field.

Background

Side impact is a relatively common working condition in an automobile accident. When the automobile side collision happens, because the passenger is nearer to the side, the space is narrow and small, the buffer space that the lateral wall provided for the side collision is much less than just bumping, and the probability that the passenger takes place the casualty is great, and the safety demand when the side collision has been hardly satisfied to current side collision protective structure.

The side face of the existing vehicle type has low integral rigidity, the rigidity matching of the B column is unreasonable, the acceleration of the chest and the head of a driver is high during side collision, and the collision force cannot be effectively transmitted; the floor crossbeam is not consistent, can not make the quick transmission of impact to the opposite side, and the risk that the battery package received the striking increases.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vehicle side collision protective structure has solved among the prior art problem that side collision protective structure can't effectively transmit to the impact.

In order to achieve the above purpose, the utility model adopts the technical proposal that: a side collision protection structure of a vehicle comprises a B-pillar, a threshold beam and a seat mounting cross beam, wherein the B-pillar comprises a B-pillar outer plate which is fixed on the threshold beam; the seat mounting cross beam is positioned between the B columns on the two sides of the vehicle body and is connected with the threshold beam; the B-column outer plate comprises a B-column upper plate and a B-column lower plate, and a plane formed by a splicing line of the B-column upper plate and the B-column lower plate and an R point of a driver is parallel to an XY plane; the B column upper plate is provided with a B column reinforcing plate, and the B column reinforcing plate is positioned between the B column upper plate and the B column inner plate; the B-column reinforcing plate extends in the Z direction to form a first extension part, and extends in the Z direction to form a second extension part; the first extending part extends to the position covering the neck part of the driver seat, and the second extending part extends to the position covering the abdomen part of the driver seat in the Z direction.

Preferably, the thickness difference between the B-pillar upper plate and the B-pillar lower plate is 0.3mm-0.5mm, so that the rigidity of the upper trunk of the passenger corresponding to the position of the B-pillar is further enhanced, and the lower end of the B-pillar is weakened, so that the collision force is transmitted to the stronger doorsill beam, and the injury to the passenger is reduced.

Preferably, the thickness of the upper plate of the B column is 1.8mm, the thickness of the lower plate of the B column is 1.5mm, and the B column has both light weight and protection effects under the thickness.

Preferably, the threshold beam comprises a threshold beam outer plate and a threshold beam inner plate, and a threshold beam reinforcing piece is arranged between the threshold beam outer plate and the threshold beam inner plate; the threshold beam outer plate is provided with an installation bracket; the mounting bracket is matched with the threshold beam reinforcement and used for fixing the threshold beam reinforcement, the threshold beam reinforcement is additionally arranged in the threshold beam, and the corresponding mounting bracket is additionally arranged, so that the energy absorption during side collision is increased.

Preferably, the mounting bracket is in a shape of a Chinese character 'ji', and 4 groups are correspondingly arranged in the two threshold beams.

Preferably, the sill beam reinforcement is an aluminum profile.

Preferably, the seat mounting cross beam is mounted on a front floor, a cross beam is arranged below the front floor, and the cross beam comprises a floor cross beam A and a floor cross beam B; the position of the beam corresponds to the seat mounting beam; two ends of the floor cross beam A are respectively connected with the front floor longitudinal beam, and two ends of the floor cross beam B are respectively connected with the front floor longitudinal beam and the threshold beam; the connecting position of the cross beam on the front floor corresponds to the seat mounting cross beam. The B columns and the threshold beams on two sides of the vehicle body, the floor cross beam A below the front floor and the floor cross beam B form an H-shaped reinforcing structure, so that collision force is quickly and effectively transmitted to a non-collision side, and injury to passengers is reduced. The floor beam A, the floor beam B, the threshold beam and the front floor longitudinal beam form a coherent force transmission path, and are combined with the threshold beam reinforcing piece inside the threshold beam into an I-shaped structure, so that the residual impact force can be quickly transmitted to the other side after a part of the impact force is absorbed, and the battery pack is prevented from being impacted.

Preferably, the thickness of the beam is 1.2 or 1.5mm, and the beam is made of high-strength steel.

Preferably, the connection position of the floor cross beam A and the front floor longitudinal beam corresponds to the connection position of the floor cross beam B and the front floor longitudinal beam.

The utility model discloses a design the B post planking for B post upper plate and B post hypoplastron to set up the B post reinforcing plate that has extension portion on the B post upper plate, effectively strengthen B post upper plate and weaken B post hypoplastron simultaneously, make the impact transmit to stronger threshold roof beam, reduce the passenger injury. Meanwhile, the extension part on the B-column reinforcing plate can effectively protect the neck and abdomen positions of a driver.

Drawings

Fig. 1 is a schematic structural diagram of a vehicle side collision protection structure provided by the present invention;

fig. 2 is a bottom view of a vehicle side collision protection structure provided by the present invention;

FIG. 3 is a side view of a vehicle side impact protection structure provided by the present invention;

FIG. 4 is a schematic structural view of a B-pillar reinforcing plate of the present invention;

fig. 5 is a schematic connection diagram of the middle floor beam a, the floor beam B and the front floor longitudinal beam of the present invention;

fig. 6 is a schematic structural view of the middle sill beam reinforcement and the mounting bracket of the present invention.

Wherein: 1-B pillar upper panel, 2-B pillar stiffener, 201-first extension, 202-second extension, 3-B pillar lower panel, 4-mounting bracket, 5-rocker reinforcement, 6-floor beam a, 7-floor beam B, 8-rocker beam, 801-rocker beam outer panel, 802-rocker beam inner panel, 9-front floor, 10-front floor stringer, 11-seat mounting beam.

Detailed Description

For a better understanding of the nature of the present invention, its further description is provided below with reference to the following detailed description and the accompanying drawings.

The utility model is suitable for the design of automobile body, in particular to a vehicle side collision protection structure, as shown in fig. 1 and fig. 2, comprising a B-pillar, a threshold beam 8, a front floor 9, a front floor longitudinal beam 10 and a seat mounting beam 11; the front floor 9 is connected between the threshold beams 8 on both sides of the vehicle; a seat mounting cross beam 11 is arranged above the front floor 9, and a front floor longitudinal beam 10 is connected below the front floor 9; two ends of the seat mounting cross beam 11 are fixed on the threshold beam 8, and a B column is correspondingly arranged at the joint of the threshold beam 8 and the seat mounting cross beam 11; the B-pillar is formed by welding an inner plate and an outer plate, and the outer plate of the B-pillar is fixed on the threshold beam 8.

The B column outer plate comprises a B column upper plate 1 and a B column lower plate 3, and the B column upper plate 1 and the B column lower plate 3 are welded together by using laser. The plane formed by the splicing line of the B-pillar upper plate 1 and the B-pillar lower plate 3 and the R point of the driver should be parallel to the XY plane.

The thickness difference between the B column upper plate 1 and the B column lower plate 3 is 0.3mm-0.5mm, so that the rigidity of the upper trunk of the passenger corresponding to the position of the B column is further enhanced, the lower end of the B column is weakened, the collision force is transmitted to the stronger threshold beam 8, and the injury of the passenger is reduced. As a preference of the utility model, when the thickness of the upper plate 1 of the B column is 1.8mm and the thickness of the lower plate of the B column is 1.5mm, the B column can have both light weight and protection effect.

The B-column upper plate 1 is provided with a B-column reinforcing plate 2, and the B-column reinforcing plate 2 is positioned between the B-column upper plate 1 and a B-column inner plate; as shown in fig. 4, the B-pillar reinforcement plate 2 extends in the Z direction to form a first extension 201, and extends in the-Z direction to form a second extension 202; the first extension part 201 extends to cover the neck area of the driver seat, and extends to cover the belly area of the driver seat in the Z direction, so that weak positions of passengers are protected from collision injury.

The components of the B-pillar can be made of hot forming materials, so that the forming is convenient and the weight is reduced.

As shown in fig. 5, cross beams are arranged below the front floor 9, and the cross beams include a floor cross beam A6 and a floor cross beam B7; two ends of the floor cross beam A6 are respectively connected with the front floor longitudinal beam 10, and two ends of the floor cross beam B7 are respectively connected with the front floor longitudinal beam 10 and the threshold beam inner plate 802; the connecting position of the floor cross beam A6 and the front floor longitudinal beam 10 corresponds to the connecting position of the floor cross beam B7 and the front floor longitudinal beam 10; the cross member corresponds to the seat mounting cross member 11 at the connecting position of the front floor 9. The beam can be 1.2 or 1.5mm thick and is made of high-strength steel.

The rocker beam 8 comprises a rocker beam outer plate 801 and a rocker beam inner plate 802, and a rocker beam reinforcement 5 is arranged between the rocker beam outer plate 801 and the rocker beam inner plate 802. The rocker beam outer plate 801 is provided with a mounting bracket 4; the mounting bracket 4 is mated with the rocker reinforcement 5 for securing the rocker reinforcement 5 between the rocker outer panel 801 and the rocker inner panel 802. And a threshold beam reinforcing piece 5 is added in the threshold beam 8, and a corresponding mounting bracket 4 is added, so that the energy absorption in the side collision process is increased.

As shown in fig. 6, in some embodiments of the present invention, the mounting bracket 4 is in the shape of a Chinese character 'ji', and 4 sets of the mounting bracket are correspondingly arranged in the two threshold beams 8. The threshold beam reinforcement 5 is an aluminum profile.

The B columns and the threshold beams 8 on the two sides of the vehicle body, and the floor cross beam A6 and the floor cross beam B7 below the front floor 9 form an H-shaped reinforcing structure, so that collision force is quickly and effectively transmitted to the non-collision side, and injury to passengers is reduced. The floor cross beam A6, the floor cross beam B7, the threshold beam 8 and the front floor longitudinal beam 10 form a continuous force transmission path, and are combined with the threshold beam reinforcing piece 5 to form an I-shaped structure, so that the residual collision force can be quickly transmitted to the other side after a part of collision force is absorbed, and the battery pack is prevented from being impacted.

The utility model discloses a protective structure furthest has kept the lightweight when realizing that intensity improves.

It should be noted that although the present invention has been described with reference to the above embodiments, other embodiments are also possible. Various modifications and changes may be made thereto without departing from the spirit and scope of the invention as set forth in the appended claims and their equivalents.

Claims

1. A vehicle side collision protection structure comprises a B-pillar, a threshold beam (8) and a seat mounting cross beam (11), wherein the B-pillar comprises a B-pillar outer plate which is fixed on the threshold beam (8); seat installation crossbeam (11) are located between the B post of automobile body both sides to be connected its characterized in that with threshold roof beam (8): the B-column outer plate comprises a B-column upper plate (1) and a B-column lower plate (3), and a plane formed by a splicing line of the B-column upper plate (1) and the B-column lower plate (3) and an R point of a driver is parallel to an XY plane; the B-column upper plate (1) is provided with a B-column reinforcing plate (2), and the B-column reinforcing plate (2) is positioned between the B-column upper plate (1) and a B-column inner plate; the B-pillar reinforcing plate (2) extends in the Z direction to form a first extending part (201), -extends in the Z direction to form a second extending part (202); the first extending part (201) covers the neck area of the driver seat, and the second extending part (202) -Z extends to cover the belly area of the driver seat.

2. The vehicle side collision protection structure according to claim 1, characterized in that: the B column upper plate (1) and the B column lower plate (3) have a thickness difference of 0.3mm-0.5 mm.

3. The vehicle side collision protection structure according to claim 2, characterized in that: the thickness of the B column upper plate (1) is 1.8mm, and the thickness of the B column lower plate is 1.5mm.

4. The vehicle side collision protection structure according to claim 1, characterized in that: the rocker beam (8) comprises a rocker beam outer plate (801) and a rocker beam inner plate (802), and a rocker beam reinforcement (5) is arranged between the rocker beam outer plate (801) and the rocker beam inner plate (802); the rocker beam outer plate (801) is provided with an installation bracket (4); the mounting bracket (4) is matched with the threshold beam reinforcement (5) and used for fixing the threshold beam reinforcement (5).

5. The vehicle side collision protection structure according to claim 4, characterized in that: the mounting bracket (4) is in a shape of a Chinese character 'ji', and 4 groups are correspondingly arranged in the two threshold beams (8).

6. The vehicle side collision protection structure according to claim 4, wherein: the doorsill beam reinforcement (5) is an aluminum profile.

7. The vehicle side collision protection structure according to claim 4, wherein: the seat mounting cross beam (11) is mounted on a front floor (9), a cross beam is arranged below the front floor (9), the cross beam comprises a floor cross beam A (6) and a floor cross beam B (7), two ends of the floor cross beam A (6) are respectively connected with a front floor longitudinal beam (10), and two ends of the floor cross beam B (7) are respectively connected with the front floor longitudinal beam (10) and a threshold beam (8); the connecting position of the cross beam on the front floor (9) corresponds to the seat mounting cross beam (11).

8. The vehicle side impact protection structure according to claim 7, wherein: the beam is 1.2 or 1.5mm thick and made of high-strength steel.

9. The vehicle side collision protection structure according to claim 7, characterized in that: the connecting position of the floor cross beam A (6) and the front floor longitudinal beam (10) corresponds to the connecting position of the floor cross beam B (7) and the front floor longitudinal beam (10).