CN214296142U

CN214296142U - B-pillar reinforcing structure

Info

Publication number: CN214296142U
Application number: CN202022298177.8U
Authority: CN
Inventors: 马鹏程
Original assignee: IAT Automobile Technology Co Ltd
Current assignee: Shanghai Nuoyang Automobile Technology Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-09-28
Anticipated expiration: 2030-10-15

Abstract

The utility model relates to a B post additional strengthening belongs to automobile design and manufacturing structure. The B-pillar reinforcing structure of the utility model comprises a B-pillar reinforcing plate, a transition reinforcing plate, an upper hinge reinforcing plate, a lower hinge reinforcing plate and a B-pillar inner plate; the bottom surface and the vertical surface of the transition reinforcing plate are respectively welded and fixed with the bottom surface and the vertical surface of the B-column reinforcing plate; the transition reinforcing plate is welded and fixed with the B-column inner plate, and the B-column inner plate is welded and fixed with the B-column reinforcing plate through flanges at two sides; the transition reinforcing plate is positioned above the upper hinge reinforcing plate. The utility model discloses a B post additional strengthening has improved B post hinge mounting point rigidity, has optimized the invasion amount that B post hinge upper portion region side bumped, has improved the biography power route of external load between B post reinforcing plate and the B post inner panel.

Description

B-pillar reinforcing structure

Technical Field

The utility model relates to an automobile design and manufacturing structure, more specifically say, the utility model relates to a B post additional strengthening.

Background

The prior art B-pillar reinforced frame has various forms, and FIG. 1 shows a B-pillar upper hinge reinforcing plate 1 extending upwards and downwards to form a large hinge reinforcing plate. The thickness of the hinge reinforcing plate is increased by increasing the Z-direction dimension of the B-pillar upper hinge reinforcing plate or increasing the thickness of the hinge reinforcing plate on the basis of increasing the dimension of the upper hinge reinforcing plate. The area moment of inertia and the area of the cross section of the upper hinge reinforcing plate are not greatly increased. The connection between the B-pillar inner plate and the B-pillar reinforcement plate is lacked. The mechanical stability of the entire B-pillar is poor. Not only does the rigidity of the mounting point of the upper hinge not be improved, but also the structural stability of the structural B column is not improved, which is not beneficial to the optimization of the side impact performance. By adopting the scheme, the performance is not greatly improved, but the total mass of the B column structure is greatly increased. The whole vehicle is not easy to realize in a light weight mode, and certain difficulty is brought to the stamping process and the welding process of the upper hinge reinforcing plate. The increased size of the hinge stiffener also results in increased costs. Part size increase, stamping die, anchor clamps examine a utensil cost all can increase.

Fig. 2 shows the upper and lower hinge reinforcement plates as one piece and extending upward as a large hinge reinforcement plate 1. The upper and lower hinge reinforcing plates are made into one piece, and the Z direction extends upwards to form a large hinge reinforcing plate. The scheme is consistent with the design idea of extending the upper hinge reinforcing plate upwards to be large. The scheme also has small optimization range on the rigidity performance of the hinge mounting point. But the light weight pressure and the process difficulty are greater than the scheme of extending the upper hinge reinforcing plate. The cost pressure also increases.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem in the prior art, the utility model aims to provide a B post additional strengthening.

The utility model discloses a B-pillar reinforcing structure, which comprises a B-pillar reinforcing plate, a transition reinforcing plate, an upper hinge reinforcing plate, a lower hinge reinforcing plate and a B-pillar inner plate; the bottom surface and the vertical surface of the transition reinforcing plate are respectively welded and fixed with the bottom surface and the vertical surface of the B-column reinforcing plate; the transition reinforcing plate is welded and fixed with the B-column inner plate, and the B-column inner plate is welded and fixed with the B-column reinforcing plate through flanges at two sides; the transition reinforcing plate is positioned above the upper hinge reinforcing plate.

And the upper hinge reinforcing plate and the B-column reinforcing plate are welded and fixed through bolts.

And the lower hinge reinforcing plate and the B-column reinforcing plate are welded and fixed through bolts.

Compared with the prior art, the utility model discloses a B post additional strengthening has following beneficial effect:

(1) the rigidity of the mounting point of the upper hinge of the B column is improved;

(2) the B column has good light weight effect, and the weight of the reinforcing part is less than that of the reinforcing plate of the large hinge;

(3) the structure is simple, the manufacturability is good, the size of the part of the reinforcement is reduced, and the difficulty of the punch forming welding process is reduced;

(4) the invasion amount of the side collision of the upper area of the B-pillar hinge is optimized;

(5) the force transmission path of external load between the B-pillar reinforcing plate and the B-pillar inner plate is improved.

Drawings

Fig. 1 is a schematic structural diagram of a B-pillar reinforcement structure in the prior art.

Fig. 2 is a schematic structural diagram of another B-pillar reinforcement structure in the prior art.

Fig. 3 is a front view of the B-pillar reinforcement structure of the present invention.

Fig. 4 is a schematic sectional view along the direction a-a in fig. 3.

Fig. 5 is a schematic cross-sectional view taken along the direction B-B in fig. 3.

Fig. 6 is a layout view of each reinforcing plate in the B-pillar reinforcing structure of the present invention (without a B-pillar inner plate).

Fig. 7 is a schematic view of a transition reinforcing plate of the B-pillar reinforcing structure of the present invention.

Detailed Description

The present invention will be further described with reference to specific embodiments to help those skilled in the art to understand the technical solution of the present invention more completely, accurately and deeply.

Example 1

As shown in fig. 3 to 7, the B-pillar reinforcement structure of the present embodiment includes a B-pillar reinforcement panel 20, a transition reinforcement panel 40, an upper hinge reinforcement panel 30, a lower hinge reinforcement panel 50, and a B-pillar inner panel 10. The bottom surface and the vertical surface of the transition reinforcing plate 40 and the B-pillar reinforcing plate 20 are respectively welded and fixed; the transition reinforcing plate 40 is welded and fixed with the B-pillar inner plate 10, and the B-pillar inner plate 10 is welded and fixed with the B-pillar reinforcing plate 20 through flanges at two sides. The transition reinforcing plate 40 is located above the upper hinge reinforcing plate 30. The upper hinge reinforcing plate 30 and the B-pillar reinforcing plate 20 are welded and fixed through bolts; the lower hinge reinforcing plate 50 is welded to the B-pillar reinforcing plate 20 and fixed thereto by bolts. And the side wall outer plate 60 is welded and fixed with the flanges at two sides of the B-pillar reinforcing plate when the side wall assembly is welded.

During preparation, the transition reinforcing plate is firstly welded with the B column reinforcing plate, and the transition reinforcing plate is connected with the bottom surface of the B column reinforcing plate through spot welding. The transition reinforcing plate and the vertical surface of the B column reinforcing plate can be connected by spot welding or secondary welding. The method is characterized in that spot welding is recommended when the vertical face of the B-column reinforcing plate is large in size, and secondary welding is recommended when the vertical face of the B-column reinforcing plate is small in size; and when the side wall assembly is welded, the side wall outer plate and the reinforcing plate are connected by adopting two-protection welding (plug welding holes are formed in the side wall outer plate). And connecting the B-pillar reinforcing plate with the B-pillar inner plate. The B-pillar structure is more stable, and the external load borne by the B-pillar reinforcing plate is better transmitted to the B-pillar inner plate. The force transmission path of the B column is optimized. The B-pillar moment of inertia and cross-sectional area of the stiffener region increase. The rigidity of the upper hinge mounting point is optimized. The upper area of the upper hinge reinforcing plate is generally the position with the largest side impact invasion amount, and the transition reinforcing plate can also be properly adjusted in the Z-direction position on the upper part of the upper hinge reinforcing plate according to the CAE side impact analysis result to optimize the side impact performance. The rigidity of the hinge mounting point can be optimized by properly adjusting the Z-direction size and the material thickness of the reinforcing plate according to the CAE analysis result, and the side collision intrusion amount is synchronously ensured to be smaller.

Be provided with the transition reinforcing plate among the B post additional strengthening of this embodiment, and arrange hinge reinforcing plate upper portion region on the B post, couple together B post reinforcing plate and B post inner panel, promote the structural stability of B post. By arranging the transition reinforcing plate, external loads borne by the B-column reinforcing plate can be effectively transferred to the B-column inner plate, so that the whole B-column force transfer path is optimized; in general, the rigidity of the mounting point at the hinge on the B column is difficult to optimize, and the intrusion amount of the area is maximum during side collision. The reinforcing plate is designed in the upper area of the upper hinge reinforcing plate, so that the rigidity of the upper hinge mounting point of the B column can be greatly improved, and the intrusion amount of the area during side collision can be optimized; the design of the reinforcing plate has obvious advantages in the aspect of prolonging the upper hinge reinforcing plate or making the hinge reinforcing plate into a light weight. Simultaneously, the process requirement is met, and the reinforcing plate is easy to form and convenient to weld. The cost is reduced to some extent, and the original structure of the B column is not influenced. The B-pillar reinforcing structure can be applied to cars and SUV vehicles, can effectively improve the rigidity of a B-pillar hinge mounting point, and effectively improves the intrusion amount of side collision of the upper area of the reinforcing plate on the B-pillar hinge.

For those skilled in the art, the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements are all within the protection scope of the present invention as long as the technical solution of the present invention is adopted.

Claims

1. A B-pillar reinforcing structure comprises a B-pillar reinforcing plate, a transition reinforcing plate, an upper hinge reinforcing plate, a lower hinge reinforcing plate and a B-pillar inner plate; the method is characterized in that: the bottom surface and the vertical surface of the transition reinforcing plate are respectively welded and fixed with the bottom surface and the vertical surface of the B-column reinforcing plate; the transition reinforcing plate is welded and fixed with the B-column inner plate, and the B-column inner plate is welded and fixed with the B-column reinforcing plate through flanges at two sides; the transition reinforcing plate is positioned above the upper hinge reinforcing plate.

2. The B-pillar reinforcement structure of claim 1, wherein: and the upper hinge reinforcing plate and the B-column reinforcing plate are welded and fixed through bolts.

3. The B-pillar reinforcement structure of claim 1, wherein: and the lower hinge reinforcing plate and the B-column reinforcing plate are welded and fixed through bolts.