B-pillar lower hinge reinforcing plate assembly

Abstract

The invention relates to a B-pillar lower hinge reinforcing plate assembly, and belongs to the technical field of automobile design and manufacturing. The B-pillar lower hinge reinforcing plate structure comprises a B-pillar reinforcing plate and a lower hinge reinforcing plate, an energy absorption area is arranged on the B-pillar reinforcing plate, and the area between the horizontal connectingline of triangular ribs on the two sides and the horizontal line passing through through columnar ribs is defined as the energy absorption area; the projection welding nut is welded on the lower hingereinforcing plate to form a lower hinge reinforcing plate assembly for mounting a vehicle door hinge; the lower hinge reinforcing plate assembly is fixed to the outer side of the B-pillar reinforcingplate, and the welding face of the periphery of the lower hinge reinforcing plate is welded to the B-pillar reinforcing plate so that a closed box body structure can be formed between the lower hingereinforcing plate and the B-pillar reinforcing plate. According to the B-pillar lower hinge reinforcing plate assembly, the structure for inducing deformation of the B column is ingeniously arranged,so that deformation of the B column meets the design expectation during side collision, and the side collision safety of a whole vehicle is effectively improved.

Description

technical field [0001] The invention relates to the technical field of automobile design and manufacture, and more specifically, the invention relates to a B-pillar lower hinge reinforcement plate assembly. Background technique [0002] The structure of the lower hinge reinforcement plate of the B-pillar in the prior art mainly includes the following structural forms: [0003] 1) if figure 1 As shown, the structure of the lower hinge reinforcement plate is an integral part, the distance between the lower boundary of the hinge reinforcement plate and the threshold is too small, and the Z-direction deformation space of the B-pillar is too small during a side impact, which is not conducive to deformation and absorption of collision energy . [0004] 2) if figure 2 As shown, although the lower hinge reinforcement plate is a separate small part, it is welded on the inner side of the B-pillar reinforcement plate, resulting in a large Y-direction cross-sectional dimension in th...

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Problems solved by technology

[0003] 1) if figure 1 As shown, the structure of the lower hinge reinforcement plate is an integral part, the distance between the lower boundary of the hinge reinforcement plate and the threshold is too small, and the Z-direction deformation space of the B-pillar is too small during a side impact, which is not conducive to deformation and absorption of collision energy

[0004] 2) if figure 2 As shown, although the lower hinge reinforcement plate is a separate small part, it is welded on the inner side of the B-pillar reinforcement plate, resulting in a large Y-direction cross-sectional dimension in this area of ​​the B-pillar, which is not conducive to deformation and energy absorption, and is not conducive to the strengthening of the B-pillar Stamping of plates

Because of the additional laser welding process, the cost is higher, and the strength of the welding part will be reduced

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