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B-column reinforcing structure and vehicle

A technology for strengthening structures and B-pillars, which is applied to superstructures, vehicle parts, superstructure sub-assemblies, etc., can solve problems such as the inability to take into account the strength and energy absorption requirements of the door sill side beams, complex processing procedures, and a large number of parts, etc., to achieve Improve head passability, increase structural strength, and reduce cavity volume

Pending Publication Date: 2021-06-22
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The number of parts is large, the weight is heavy, and the processing procedure is complicated. Due to the limitation of the process, the traditional rolling parts can only be designed as an open shell structure with a simple profile, which cannot take into account the strength and energy absorption requirements of the door sill side beam

Method used

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  • B-column reinforcing structure and vehicle
  • B-column reinforcing structure and vehicle
  • B-column reinforcing structure and vehicle

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] see Figure 3 to Figure 6 , the B-pillar reinforcement structure shown includes a B-pillar reinforcement 1 arranged between the B-pillar inner panel 3 and the side wall outer panel 2, the tensile strength of the B-pillar reinforcement 1 is ≥1800Mpa, and the elongation is ≥5 %. The upper part of the B-pillar reinforcement 1 is surrounded by the B-pillar inner panel 3 to form a transverse accommodation chamber. A tubular reinforcement 4 is arranged in the transverse accommodation chamber. The outer wall of the tubular reinforcement 4 is welded and fixed to the transverse accommodation chamber. The lower end of the B-pillar reinforcement 1 is fixedly connected to the aluminum alloy door sill side beam 5 through a mounting piece.

[0026] The B-pillar reinforcement 1 is in the shape of an "I", and the upper part of the B-pillar reinforcement 1 is designed in con...

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Abstract

The invention discloses a B-column reinforcing structure and a vehicle. The B-column reinforcing structure comprises a B-column reinforcing piece arranged between a B-column inner plate and a side wall outer plate, the tensile strength of the B-column reinforcing piece is larger than or equal to 1800 Mpa, and the ductility of the B-column reinforcing piece is larger than or equal to 5%; a transverse containing cavity is defined by the upper portion of the B column reinforcing piece and the B column inner plate, a tubular reinforcing piece is arranged in the transverse containing cavity, and the outer side wall of the tubular reinforcing piece is partially attached to and fixedly connected with the transverse containing cavity. And the lower end of the B-column reinforcing piece is fixedly connected with the aluminum alloy doorsill boundary beam. Under the condition that the weight is not increased, the side collision performance of a passenger compartment is improved, and the invasion amount of the passenger compartment during side collision is reduced.

Description

technical field [0001] The invention relates to a vehicle body structure, in particular to a B-pillar reinforcement structure and a vehicle. Background technique [0002] Collision safety is a crucial performance of a car. During a collision, especially after a side collision, it is necessary to maintain the integrity of the passenger compartment space. The B-pillar area of ​​the car cannot be bent or broken. It is necessary to ensure that the front and rear doors can Open normally. see figure 1 and figure 2 , the existing B-pillar reinforcement 7 is located between the side wall outer panel 2 and the existing B-pillar inner panel 8, and the lower end of the existing B-pillar reinforcement 7 is fixedly connected to the existing door sill side beam 9. [0003] The commonly used material scheme for the B-pillar reinforcement 7 is: the tensile strength of the upper part of the B-pillar is 1500 MPa, and the tensile strength of the lower part is 600 MPa, that is, the existing...

Claims

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Application Information

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IPC IPC(8): B62D25/04C22C38/02C22C38/04C22C38/06
CPCB62D25/04C22C38/02C22C38/04C22C38/06C22C38/002
Inventor 刘伯芳蒲霞张金生杨琴兰莎张翼飞谯俊邹文军
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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