CN101665122A

CN101665122A - Center pillar assembly of sedan

Info

Publication number: CN101665122A
Application number: CN200910190957A
Authority: CN
Inventors: 姜进京; 张海清; 刘扬胜
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2009-09-24
Filing date: 2009-09-24
Publication date: 2010-03-10

Abstract

The invention relates to a center pillar assembly of a sedan, which comprises a lateral outer skin, a center pillar inner skin, a center pillar reinforcer, a center pillar hinge installing reinforcerand a center pillar lower reinforcer, wherein the cross sections of the lateral outer skin and the center pillar reinforcer have U-shaped structure in the same direction; the lateral outer skin is coated outside the center pillar reinforcer; the lateral outer skin and the center pillar reinforcer are in butt welding with the center pillar inner skin; a center pillar cavity is formed between the center pillar reinforcer and the center pillar inner skin to provide larger deforming space, thus being capable of better absorbing energy during the lateral collision process, reducing invasion amountof the center pillar and reducing damage of passengers; the inner lateral surface of the center pillar reinforcer is also welded with the hinge installing reinforcer; the center lower reinforcer is welded at the lower part of the center pillar and the inner lateral surface of the hinge installing reinforcer to reinforce the integral structure of the center pillar, so that the energy during the lateral collision process is easy to be transmitted onto a doorsill beam and a roof crossrail by the center pillar, thus forming a complete energy transmission passage and guaranteeing the safety of thepassengers.

Description

A kind of car central post assembly

Technical field

The invention belongs to the automotive body structure technical field, be specifically related to a kind of car central post structure.

Background technology

The design of car central post section has directly determined the safety of car load side impact.At present, each vehicle central post section has nothing in common with each other, and cost height, section size, weight, secure context difference are very big.Referring to Fig. 1, general many employing U font central post reinforcements 3 of vehicle and straight central post inside panel 2 butt joint weldings in the past form cavity, when satisfying side collision, and endergonic requirement.Central post exterior skin 1 is a U-shaped also, is welded on outside the central post reinforcement 3.But the cavity that this structure forms is limited, can not effectively absorb the energy in the collision, and central post intensity is low, and interior of body is invaded in the distortion that fractures in the middle of taking place easily, causes occupant injury.

Summary of the invention

The present invention just is to provide a kind of car central post assembly; realize the requirement of strength of vehicle body by the structure that changes between central post reinforcement and the central post inside panel to the central post place; satisfy corresponding national side impact rules, improve the vehicle body crash survivability, the protection occupant safety.

A kind of car central post assembly, comprise gusset exterior skin, central post inside panel and central post reinforcement, described gusset exterior skin and central post reinforcement cross section are equidirectional U-shaped structure, the gusset exterior skin is coated on outside the central post reinforcement, they and the butt welding of central post inside panel, between central post reinforcement and central post inside panel, form the central post cavity, medial surface at the central post reinforcement also is welded with hinge installation reinforcement, and the cross section that hinge is installed reinforcement is and the equidirectional U-shaped in central post reinforcement cross section.

Be welded with reinforcement under the central post in the bottom of described central post and at the medial surface that hinge is installed reinforcement.The cross section of described central post inside panel is a U-shaped, and direction is opposite with the cross section U-shaped of central post reinforcement, and the central post cavity that both U-shapeds surround formation is nearly square.

In this structure, increased hinge in the side of central post reinforcement reinforcement hinge installation reinforcement has been installed, strengthened the integral structure of central post.Further reinforcement under the central post that increases in the bottom, the centering column lower end has good booster action, and actv. reduces the intrusion amount of central post lower end.In addition, the central post inside panel also is designed to U-shaped, formed the bigger tetragonal central post cavity in space with central post reinforcement assembly welding, increase the section cavity size at central post place as much as possible, thereby can provide bigger deformation space, can well absorb the impulsive force of side collision by the distortion of central post cavity self, simultaneously impact force is passed to sill strip by the central post structure, the impulsive force that collision is produced can be very fast each position that is delivered to vehicle body, reduce crew module's deflection, reduce the intrusion amount of local collision.

Description of drawings

Fig. 1 is existing automobile central post section structure scheme drawing;

Fig. 2 is a central post assembly exploded view of the present invention;

Fig. 3 is a central post assembly section structure scheme drawing of the present invention;

Wherein, 1-gusset exterior skin, 2-central post inside panel, 3-central post reinforcement; 4-central post hinge is installed reinforcement, reinforcement under the 5-central post;

The specific embodiment

Referring to Fig. 2 and Fig. 3, this car central post assembly comprises reinforcement 5 under gusset exterior skin 1, central post inside panel 2, central post reinforcement 3, central post hinge installation reinforcement 4 and the central post.Wherein the cross section of gusset exterior skin 1 and central post reinforcement 3 is equidirectional U-shaped structure, and gusset exterior skin 1 is coated on outside the central post reinforcement 3.The cross section of central post inside panel 2 also is a U-shaped, and direction is opposite with the cross section U-shaped of central post reinforcement, and it and gusset exterior skin 1 and 3 butt welding of central post reinforcement form nearly tetragonal central post cavity between them.The medial surface of central post reinforcement 3 is welded with hinge reinforcement 4 is installed, the cross section that hinge is installed reinforcement 4 also with the equidirectional U-shaped in central post reinforcement 3 cross sections.Also be welded with reinforcement 5 under the central post in the bottom of central post and at the medial surface that hinge is installed reinforcement 4.

This central post assembly is to have earlier to be installed by the hinge of the central post reinforcement 3 of U type, U type that reinforcement 5 should form the central post cavity structure with the gusset exterior skin 1 of U type and central post inside panel 2 butt welding of U type by the welding assembly then again by being welded into a welding assembly under reinforcement 2 and the central post.With respect to plate in the past central post inside panel 2, the central post inside panel 2 of U type can provide bigger deformation space, thereby the energy in can better the absorbing side impact process reduces the intrusion amount of central post, reduces occupant's injury values.Compare with central post structure in the past, the present invention has increased the central post hinge newly reinforcement 5 under reinforcement 4, the central post has been installed, strengthened the integral structure of central post, the energy that is beneficial in the side impact process is delivered on sill strip and the roof panel cross member by central post, constitute complete energy-transmission channel, guarantee occupant safety.

Claims

1, a kind of car central post assembly, comprise gusset exterior skin, central post inside panel and central post reinforcement, described gusset exterior skin and central post reinforcement cross section are equidirectional U-shaped structure, the gusset exterior skin is coated on outside the central post reinforcement, they and the butt welding of central post inside panel, between central post reinforcement and central post inside panel, form the central post cavity, it is characterized in that: the medial surface at the central post reinforcement also is welded with hinge installation reinforcement, and the cross section that hinge is installed reinforcement is and the equidirectional U-shaped in central post reinforcement cross section.

2, car central post assembly according to claim 1 is characterized in that: be welded with reinforcement under the central post in the bottom of described central post and at the medial surface that hinge is installed reinforcement.

3, car central post assembly according to claim 1 and 2, it is characterized in that: the cross section of described central post inside panel is a U-shaped, and direction is opposite with the cross section U-shaped of central post reinforcement, the central post cavity that both U-shapeds surround formation is nearly square.