KR101767914B1 - Reinforcement structure of vehicle - Google Patents

Abstract

The bodywork rigid frame steel structure is started. In the car body rigidity steel structure according to the embodiment of the present invention, an upper transverse reinforcement beam for transversely connecting a shock absorber mounting portion formed on an upper portion of both shock absorber housings; Side longitudinal reinforcing beams extending downward along the side of the shock absorber housing at the lower ends of the upper lateral reinforcing beams and connected to the respective front side members; And a lower transverse reinforcement beam disposed in parallel with the upper transverse reinforcement beam and interconnecting the lower ends of the transverse longitudinal reinforcing beams together with the connecting member, It forms a frame to reinforce the body rigidity.

Description

{REINFORCEMENT STRUCTURE OF VEHICLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle body rigid steel structure, and more particularly, to a vehicle body rigid steel structure that improves the torsional rigidity of a vehicle by applying a square structure connecting both shock absorber housings inside an engine room.

Generally, the front vehicle body structure of the vehicle forming the engine room includes a bumper beam arranged in the vehicle width direction in front of the vehicle, a front side member extending in the longitudinal direction of the vehicle through staples on both rear sides of the bumper beam, And a dash panel connected to the rear end of the member to divide the indoor space.

At this time, a shock absorber housing is provided between the front side members and the dash panel, and the shock absorber is installed to prevent the vibration of the road surface from being transmitted to the vehicle body through the wheels.

The shock absorber housing is formed with a shock absorber mounting portion to which the shock absorber is connected at its upper portion. The shock absorber mounting portion supports the impact load and the torsional load transmitted from the road surface through the shock absorber with a robust structure.

The shock absorber housing is disposed at an upper portion of the wheel house, and is formed in a box shape that opens downward in conjunction with the fender apron inner panel.

On the other hand, in the conventional vehicle body structure, a difference is caused by the frictional resistance between the inner wheel and the outer wheel in the direction of rotation when the vehicle is rotating, and the left and right twist due to the dynamic relationship between the centrifugal force and the centrifugal force The cowl top panel is mounted in the vehicle width direction on the rear side of the engine room to suppress the occurrence of right and left torsion.

However, in the conventional vehicle body structure as described above, not only the cowl top panel can not sufficiently secure the torsional rigidity but also the shock absorber mounting portions of the both side shock absorber housings are not connected to each other, This has the disadvantage of poor ride and handling (R & H: Ride & Handling) performance.

The matters described in the background section are intended to enhance the understanding of the background of the invention and may include matters not previously known to those skilled in the art.

The embodiment of the present invention provides a vehicle body rigid steel structure for enhancing the riding and handling performance by increasing the rigidity against the vehicle twist deformation by adding a rectangular reinforcing structure for transversely connecting the front side member and the shock absorber housing in the engine room I want to.

In one or more embodiments of the present invention, an upper transverse reinforcement beam for transversely connecting a shock absorber mounting portion formed on an upper portion of both shock absorber housings in a vehicle body rigid steel structure; Side longitudinal reinforcing beams extending downward along the side of the shock absorber housing at the lower ends of the upper lateral reinforcing beams and connected to the respective front side members; And a lower transverse reinforcement beam disposed in parallel with the upper transverse reinforcement beam and interconnecting the lower ends of the transverse longitudinal reinforcing beams together with the connecting member, wherein the lower transverse reinforcement beam includes a rectangular transverse beam connecting the both front side members and the two transverse shock absorber housings It is possible to provide a body rigid-bearing steel structure for reinforcing the body rigidity by forming a frame.

The lower horizontal reinforcing beam is connected to the lower end portion of the longitudinal reinforcing beam through the connecting member. The upper horizontal panel is joined to the lower portion of the upper panel to form a closed end surface. And a lower panel coupled to the lower panel.

In addition, the lower panel may be formed by downwardly bending both ends to form a fastening end.

In addition, the upper horizontal reinforcing beam may be joined at both ends around the shock absorber mounting portion and forming an extended end outwardly.

In addition, the both side longitudinal reinforcing beams may be welded to the side surfaces of the shock absorber housing and the front side members through the flanges by forming bent flanges at the opposite end portions and the lower end portions, respectively.

In addition, the connecting member may be spot welded to one end of the longitudinal reinforcing beam, and the other end of the connecting member may be bolted to the lower lateral reinforcing beam.

The embodiments of the present invention improve the ride end handling performance by increasing the rigidity against the vehicle torsional deformation by adding a rectangular reinforcing structure for connecting the front side member and the shock absorber housing laterally in the engine room, Can be maximized.

In addition, the effects obtainable or predicted by the embodiments of the present invention are directly or implicitly disclosed in the detailed description of the embodiments of the present invention. That is, various effects to be predicted according to the embodiment of the present invention will be disclosed in the detailed description to be described later.

1 is a front view showing a body of a vehicle body stiffening steel structure according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating a vehicle body rigid steel structure according to an embodiment of the present invention. FIG.
3 is an enlarged perspective view showing a body of a vehicle body stiff- ing steel structure according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It should be understood, however, that the drawings and the following detailed description are exemplary and explanatory of various embodiments for effectively illustrating the features of the present invention. Therefore, the present invention should not be limited to the following drawings and descriptions.

FIG. 1 is a front view showing a bodywork rigid-bearing steel structure according to an embodiment of the present invention, FIG. 2 is a projection perspective view showing a bodywork rigid-bearing steel structure according to an embodiment of the present invention, Fig. 2 is an enlarged perspective view showing a steel structure.

1 to 3, a vehicle body rigid steel structure according to an embodiment of the present invention is disposed in front of a dash panel 53 of an engine room of a vehicle, and has a rectangular frame shape.

Such a body-stiffness steel structure includes an upper transverse reinforcement beam 10, a both-side longitudinal reinforcement beam 20 and a lower transverse reinforcement beam 30.

The upper horizontal reinforcing beams 10 laterally connect the shock absorber mounting portions 51 formed on the upper portions of the two side shock absorber housings 50.

The upper horizontal reinforcing beam 10 is formed so that both ends of the upper horizontal reinforcing beam 10 surround the periphery of the shock absorber mounting portion 51.

That is, the upper horizontal reinforcing beam 10 has through holes formed at both ends thereof and is matched to the shock absorber mounting portion 51 through the through holes.

The upper horizontal reinforcing beam 10 is formed by forming an extended end 11 extending to the outer side of the both side shock absorber mounting portions 51.

The both side longitudinal reinforcing beams 20 extend downward along the side surface of the shock absorber housing 50 at the lower sides of both side ends of the upper lateral reinforcing beam 10.

The longitudinal reinforcing beam 20 is connected to the front side members 55 at the lower end.

These two side longitudinal reinforcing beams 20 form flanges 20a and 20b which are bent at both ends and the lower end.

The side longitudinal reinforcing beams 20 are welded to the side surfaces of the shock absorber housing 50 and the front side members 55 through the flanges 20a and 20b, respectively.

The side longitudinal reinforcing beam 20 is joined to the side surface of the shock absorber housing 50 through the flanges 20a at both ends and is fixed to the upper surface of the front side member 55 through the flange 20b at the lower end .

The lower transverse reinforcement beam 30 is disposed in parallel with the upper transverse reinforcement beam 10 at a lower portion of the upper transverse reinforcement beam 10.

That is, the lower horizontal reinforcing beam 30 is formed between the lower ends of the both side longitudinal reinforcing beams 20.

At this time, the lower transverse reinforcement beam 30 interconnects the lower ends of the both side longitudinal reinforcing beams 20 together with the connecting member 40.

The lower transverse reinforcement beam 30 is composed of an upper panel 31 and a lower panel 33.

The upper panel 31 is directly connected to the lower end of the longitudinal reinforcing beam 20 through the connecting member 40.

At this time, one end of the connecting member 40 is spot-welded to the longitudinal reinforcing beam 20, and the other end is bolted to the lower lateral reinforcing beam 30.

That is, the connecting member 40 may be formed in a "B" shape by bending a central portion so that one side end portion and the other side end portion are bonded to each other.

The lower panel 33 is joined to the lower portion of the upper panel 31 to form a closed end surface between the lower panel 33 and the upper panel 31.

At this time, the lower panel 33 is fastened to the inner side surface of the front side member 55 through the fastening end 33a in a state where the fastening end 33a is formed by downwardly bending the both end portions.

Therefore, the body rigid steel structure according to the embodiment of the present invention reinforces the body rigidity by forming a rectangular frame that connects the both side shock absorber housing 50 and both front side members 55 to each other.

Thus, the rigidity against the vehicle torsional deformation can be increased to improve the ride & handling performance (R & H).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

10 ... upper horizontal reinforcing beam
11 ... Extension stage
20 ... longitudinal reinforcing beam
20a ... Both side end flanges
20b ... lower flange
30 ... Lower horizontal reinforcing beam
31 ... upper panel
33 ... lower panel
33a ... fastening end
40 ... connection member
50 ... shock absorber housings
51 ... Shock absorber mounting part
53 ... Dashboard
55 ... Front Side Members

Claims (6)

In the vehicle body rigid steel structure,
An upper transverse reinforcement beam having both ends wrapped around the shock absorber mounting portion so as to connect the shock absorber mounting portions formed on the upper portions of the both side shock absorber housings transversely and forming an extended end outward;
Side longitudinal reinforcing beams extending downward along the side of the shock absorber housing at the lower ends of the upper lateral reinforcing beams and connected to the respective front side members; And
And a lower transverse reinforcement beam disposed in parallel with the upper transverse reinforcement beam and interconnecting the lower ends of the both longitudinal transverse beams together with the connecting member,
A vehicle body rigid steel structure that reinforces body rigidity by forming a rectangular frame that connects both front side members and both side shock absorber housings. The method according to claim 1,
The lower transverse reinforcement beam
An upper panel directly bonded to a lower end of the longitudinally reinforcing beam through the connecting member,
And a lower panel joined to a lower portion of the upper panel to form a closed end surface and both ends thereof being fastened to an inner surface of the front side member. 3. The method of claim 2,
The lower panel
A vehicle body rigid-steel structure for forming a fastening end by downwardly bending molding both ends. delete The method according to claim 1,
The two side longitudinal stiffening beams
And a flange bent at both ends and a lower end of the flange are welded to the upper surface of the front side member and the side surface of the shock absorber housing through the flange. The method according to claim 1,
The connecting member
Wherein one end of the beam is spot welded to the longitudinal reinforcing beam and the other end is bolted to the lower lateral reinforcing beam.

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