CN210502585U - Anti structure of hitting of automobile body stand side - Google Patents

Abstract

The utility model relates to a side anti-collision structure of a vehicle body upright post, the lower end of a C-shaped post reinforcing plate is welded with a threshold, and the upper part of the C-shaped post reinforcing plate extends to 120mm above a rear door lock; the front end of a rear door anti-collision beam I is supported in a hinge area on a B column, the front end of a rear door anti-collision beam II is supported in the middle of the rear door anti-collision beam I and welded with the rear door anti-collision beam I, the rear end of the rear door anti-collision beam II is supported in a door lock area of a C column reinforcing plate, and a rear row R point is locked in a triangular area formed by the rear door anti-collision beam I, the rear door anti-collision beam II and the C column reinforcing plate; the distance between the upper part of the B-column reinforcing plate II and the top point of the upper end of the B-column reinforcing plate I is 340 mm; the distance between the lower edge of the B-column reinforcing plate II and the lower edge of the B-column reinforcing plate I is 80 mm; trimming lines on two sides of the bottom of the B column are perpendicular to the sealing surface of the door opening. The safety protection device is used for better protecting the safety of passengers in two rows in the case of side collision when the weight of the barrier is increased by more than 40% and the barrier X moves backwards by 250 mm.

Description

Anti structure of hitting of automobile body stand side

Technical Field

The utility model belongs to the technical field of white automobile body structural design, specific anti structure of hitting of automobile body stand side.

Background

The side collision of C-NCAP2018 increases the investigation on the injury condition of two-row passengers, the weight of the barrier is increased by more than 40%, and the barrier X moves backwards by 250 mm.

The existing C column structure is single and thin, and cannot provide effective protection for the barrier moving backwards by 250mm, so that two rows of passengers are greatly injured. Carry out the car of strengthening to the C post among the prior art, back door anticollision roof beam overlap joint position sets up in B post middle part and C post lower part usually, and the defect is not enough to the protection of back row R point, and the R point can directly expose in the striking region in the back upper corner of side collision barrier, still can form the injury.

Disclosure of Invention

The utility model aims at providing a structure is resisted to automobile body stand side for when the side collision that moves 250mm backward at barrier weight increase more than 40% and barrier X, protected two rows of passenger safety betterly.

The purpose of the utility model is realized through the following technical scheme:

a side impact-resistant structure of a vehicle body upright post comprises a B-post reinforcing plate I1, a B-post reinforcing plate II2, a rear door impact-resistant beam I6, a rear door impact-resistant beam II7 and a C-post reinforcing plate 8; the B-column reinforcing plate I1 and the B-column reinforcing plate II2 are welded into a whole and then are punched, the lower part of the B-column reinforcing plate I1 is welded with the doorsill 5, the B-column reinforcing plate II2 is not welded with the doorsill 5, the lower end of the C-column reinforcing plate 8 is welded with the doorsill 5, and the upper part of the C-column reinforcing plate extends to 120mm above the rear door lock; the front end of a rear door anti-collision beam I6 is supported in the hinge area on the B column, and the lower part of the rear door anti-collision beam I6 is supported in the welding area of the C column reinforcing plate 8 and the threshold; the front end of a rear door anti-collision beam II7 is supported in the middle of a rear door anti-collision beam I6 and welded with the rear door anti-collision beam I, the rear end of the rear door anti-collision beam II7 is supported in a door lock area of a C-pillar reinforcing plate 8, and a rear row R point 9 is locked in a triangular area formed by the rear door anti-collision beam I6, the rear door anti-collision beam II7 and the C-pillar reinforcing plate 8; the distance L1 between the upper part of the B-column reinforcing plate II2 and the top point of the upper end of the B-column reinforcing plate I1 is 340mm, namely, the top of the B-column is weakened; the distance L2 between the lower edge of the B-pillar reinforcing plate II2 and the lower edge of the B-pillar reinforcing plate I1 is 80 mm; the lower trimming line 11 of the B-pillar reinforcing plate II2 is of a bowl-shaped structure, and the trimming lines on two sides of the bottom of the B-pillar are perpendicular to the sealing surface of the door opening.

As a more excellent technical solution of the utility model: the B-pillar reinforcing plate I is 1.2mm thick, and the B-pillar reinforcing plate II2 is 420mm shorter than the B-pillar reinforcing plate I and is 1.5mm thick.

The beneficial effects are as follows:

1. and weakening the top of the B column to ensure that the invasion of the B column after impact does not cause transition damage of upper nodes to cause the collapse of the whole B column.

2. The weakening treatment of the lower part of the B-pillar, namely the B-pillar reinforcing plate II2 is not welded with the threshold, so that the threshold is prevented from deforming and bending due to invasion of the B-pillar.

3. The shape of the trimming line of the lower part and the bottom can prevent the wrinkling of the lower part of the B column at the corner of the sealing surface during the molding process, thereby improving the molding property; compared with the traditional X-direction level horizontal trimming, the energy absorption device has more obvious weakening effect on the threshold and better energy absorption.

4. The lower rear of the barrier direct impact area is directly opposite the very strong joint formed by the rear door impact beam I6, the door sill 5, and the lower portion of the C-pillar reinforcement 8.

5. The impact point at the rear upper part of the barrier body is right opposite to a very strong node formed by a rear door anti-collision beam II7 and the upper part of a C-pillar reinforcing plate 8, and a rear row R point 9 is hidden in a triangular area formed by three beams.

6. The C-column reinforcing plate extends to a position 120mm above the rear door lock ring, so that the effect of reinforcing the rear door lock ring is achieved, and the situation that the door cannot be opened for escape due to serious damage of the rear lock ring after collision is prevented; meanwhile, the automobile door anti-collision beam II7 has a protection effect, and simultaneously supports the outer plate of the rear automobile door, so that the surface rigidity and NVH performance of the automobile door anti-collision beam are improved.

To sum up, the utility model provides an anticollision structure has protected two rows of passengers comprehensively not to expose in any closed angle region of barrier, even also protects comparatively steadily when certain error appears in barrier striking position, and one set of thermoforming mould and one set of welding jig have been saved to the B post simultaneously, have reduced development cost.

Drawings

FIG. 1 is a schematic view of a side collision structure of a vehicle body pillar according to the present invention;

FIG. 2 is a schematic diagram of a B-pillar patch panel structure of a side collision structure of a vehicle body pillar of the present invention;

in the figure: 1. a B column reinforcing plate I; 2. b column reinforcing plate II; 3. a side impact barrier; 4. a direct impact area at the front end of the side impact barrier; 5. a threshold; 6. a rear door anti-collision beam I; 7. a rear door anti-collision beam II; 8. a C-pillar reinforcement plate; 9. rear row R points; 10. b, reinforcing plate welding spots of the columns; 11. the lower trimming line of the B-pillar reinforcing plate II 2; l1 is the distance from the B-pillar reinforcing plate II to the upper part of the B-pillar reinforcing plate I; l2 is the distance from the B-pillar reinforcement plate II to the lower part of the B-pillar reinforcement plate I.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a vehicle body pillar side anti-collision structure, including B post reinforcing plate I1, B post reinforcing plate II2, back door anticollision roof beam I6, back door anticollision roof beam II7, C post reinforcing plate 8, all the other part materials except 7 are thermoforming, C post reinforcing plate 8 lower extreme and threshold 5 welding, upper portion extends to 120mm above the back door lock; the front end of a rear door anti-collision beam I6 is supported in the hinge area on the B column, and the lower part of the rear door anti-collision beam I6 is supported in the welding area of the C column reinforcing plate 8 and the threshold; the front end of a rear door anti-collision beam II7 is supported in the middle of a rear door anti-collision beam I6 and welded with the rear door anti-collision beam I, the rear end of the rear door anti-collision beam II7 is supported in a door lock area of a C-pillar reinforcing plate 8, and a rear row R point 9 is locked in a triangular area formed by the rear door anti-collision beam I6, the rear door anti-collision beam II7 and the C-pillar reinforcing plate 8; the distance L1 between the upper part of the B-column reinforcing plate II2 and the top point of the upper end of the B-column reinforcing plate I1 is 340mm, namely, the top of the B-column is weakened; the distance L2 between the lower threshold edge of the B-pillar reinforcement plate II and the lower edge of the B-pillar reinforcement plate I is 80 mm. As shown in FIG. 2, the B-pillar stiffener I1 and the B-pillar stiffener II2 are formed by welding two plates together and then stamping the two plates together. The lower part of the B-pillar reinforcement plate I1 is welded with the door sill 5, but the B-pillar reinforcement plate II2 is not welded with the door sill 5. The lower trimming line 11 of the B-pillar reinforcing plate II2 is bowl-shaped, and the trimming lines on two sides are perpendicular to the trend of the sealing surface of the door opening. The lower part of 8 is welded with 5, and the upper part is 250mm higher than 3, namely extends 120mm relative to the central position of the rear door lock ring. The lap areas of the rear door impact beam I6 and the rear door impact beam II7 were welded.

In the process of the side collision barrier 3 collision, the upper part of the B-pillar reinforcing plate II2 is staggered 340mm from the B-pillar reinforcing plate I1, so that the intrusion after the B-pillar collision can not cause the transition damage of the upper node to cause the whole B-pillar collapse. The lower part of the B-pillar reinforcing plate II2 extends to the threshold area, is staggered 80mm from the B-pillar reinforcing plate I1, but is not welded with the threshold, so that the rigidity of the lower hinge can be enhanced, and the phenomenon that the threshold is deformed and bent due to invasion of the B-pillar can be prevented. The B-pillar reinforcing plate II2 is of a bowl-shaped structure, trimming lines on two sides of the bottom of the B-pillar reinforcing plate are perpendicular to a door opening sealing surface, and compared with a traditional X-direction parallel horizontal trimming line, the B-pillar reinforcing plate has more obvious weakening effect on a threshold, has better energy absorption, can prevent wrinkling at a sealing surface corner when the lower part of the B-pillar is formed, improves formability, and has a better inverted-S shape in a B-pillar deformation form.

The rear upper corner of the direct impact area 4 of the barrier directly impacts the intersection position of a rear door anti-collision beam I6 and a rear door anti-collision beam II7, the front part of the rear door anti-collision beam I6 is carried on an upper hinge area formed by two plates of a B column, the rear part of the rear door anti-collision beam I6 is carried on a welding node of a doorsill 5 and a C column reinforcing plate 8, and the two ends of the rear door anti-collision beam I6 are very strong in structure and can well. The upper rear corner of the side impact barrier 3 has a great damage to the R point in the past, the structure hides the rear row R point 9 in a triangular area formed by the rear door anti-collision beam I6, the rear door anti-collision beam II7 and the C column reinforcing plate 8, and meanwhile, the impact point is the intersection position of the rear door anti-collision beam II7 and the C column reinforcing plate 8, so that the rear row R point 9 area is better protected compared with the past structure. And the thickness of the B-column reinforcing plate I is 1.2mm, the length of the B-column reinforcing plate II2B column reinforcing plate I is 420mm, and the thickness is 1.5mm, so that the weight is reduced while one set of stamping die and welding fixture is saved.

Therefore, the utility model provides an anticollision structure has protected two rows of passengers comprehensively not to expose in any closed angle region of barrier, even also protects comparatively steadily when certain error appears in barrier striking position.

Claims (2)

1. The utility model provides a structure is hit to automobile body stand side which characterized in that: the rear door anti-collision system comprises a B-column reinforcing plate I (1), a B-column reinforcing plate II (2), a rear door anti-collision beam I (6), a rear door anti-collision beam II (7) and a C-column reinforcing plate (8); the B-column reinforcing plate I (1) and the B-column reinforcing plate II (2) are welded into a whole and then are punched, the lower part of the B-column reinforcing plate I (1) is welded with the doorsill (5), the B-column reinforcing plate II (2) is not welded with the doorsill (5), the lower end of the C-column reinforcing plate (8) is welded with the doorsill (5), and the upper part of the C-column reinforcing plate extends to 120mm above the rear door lock; the front end of a rear door anti-collision beam I (6) is supported in an upper hinge area of a B column, and the lower part of the rear door anti-collision beam I is supported in a welding area of a C column reinforcing plate (8) and a threshold; the front end of a rear door anti-collision beam II (7) is supported in the middle of a rear door anti-collision beam I (6) and welded with the rear door anti-collision beam I, the rear end of the rear door anti-collision beam II is supported in a door lock area of a C-column reinforcing plate (8), and a rear row R point (9) is locked in a triangular area formed by the rear door anti-collision beam I (6), the rear door anti-collision beam II (7) and the C-column reinforcing plate (8); the distance L1 between the upper part of the B-column reinforcing plate II (2) and the top point of the upper end of the B-column reinforcing plate I (1) is 340mm, namely, the top of the B-column is weakened; the distance L2 between the lower edge of the B-pillar reinforcing plate II (2) and the lower edge of the B-pillar reinforcing plate I (1) is 80 mm; the lower trimming line (11) of the B-column reinforcing plate II (2) is of a bowl-shaped structure, and the trimming lines on two sides of the bottom of the B-column are perpendicular to the sealing surface of the door opening.

2. The side impact structure of a pillar of a vehicle body according to claim 1, wherein: the B-column reinforcing plate I (1) is 1.2mm thick, and the B-column reinforcing plate II (2) is 420mm shorter than the B-column reinforcing plate I (1) and is 1.5mm thick.

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