CN215794047U - Divide and carry beam structure in threshold - Google Patents

Abstract

The utility model relates to a load-sharing beam structure in a doorsill for a vehicle body, which comprises a load-sharing beam body, wherein the load-sharing beam body comprises a coaming, a lapping plate, an upper force-bearing rib, a middle force-bearing rib and a lower force-bearing rib, wherein the upper force-bearing rib, the middle force-bearing rib and the lower force-bearing rib are connected between the coaming and the lapping plate; compared with the prior art, the utility model obtains enough safety performance in a simple mode and light weight, can meet the requirement of the existing vehicle manufacturing process, can solve the problem of column collision with smaller energy absorption space, and is particularly suitable for electric vehicles.

Description

Divide and carry beam structure in threshold

[ technical field ]

The utility model relates to the technical field of automobile manufacturing, in particular to a sill inner partial load beam structure.

[ background art ]

In a four-wheel passenger car, a car body structure generally has a rocker structure connecting a car body floor and a car body side wall, and a load-sharing structure is designed and reinforced in the rocker. When the automobile is impacted from the front side and the side, the huge impact energy is dispersed to other parts of the automobile body through the doorsill structure, so that the doorsill structure plays an important role in the overall safety performance of the automobile. Meanwhile, the weight thereof also accounts for a relatively large proportion of the total weight of the vehicle body. Therefore, the threshold load-sharing structure with high strength and light weight can directly improve the competitiveness of the whole vehicle in the market.

In the prior art, the structure of the load-sharing beam in the threshold mainly has the following two types:

(1) the whole longitudinal through type bearing beam is designed in the threshold. In the side collision working condition, the threshold torsion degree caused by the B column is reduced, and the living space of a driver and passengers is ensured. In the working condition of column collision, the column collision force is effectively diffused in the X direction, and the collision resistance is improved. The anti-collision performance of the whole vehicle has obvious advantages.

(2) The Y-direction bearing support is designed in the threshold, and the support is mainly formed by sheet metal stamping parts. The position of the support is selected mainly by considering the requirements of laws and regulations, so that effective bearing can be carried out when a column collision experiment is carried out, and living spaces of a driver and passengers are ensured. There is an advantage in weight reduction of the entire vehicle.

[ contents of utility model ]

The utility model aims to solve the defects and provide a doorsill inner partial load beam structure, which obtains enough safety performance in a simple mode and light weight, can meet the requirement of the existing vehicle manufacturing process and can solve the problem of column collision with small energy absorption space.

Divide carrier beam structure in for realizing above-mentioned purpose design a threshold, including dividing carrier beam body 1, divide carrier beam body 1 to include bounding wall 2, overlap joint board 3 and connect last bearing force muscle, well bearing force muscle 4 and the lower bearing force muscle between bounding wall 2 and overlap joint board 3, go up bearing force muscle, well bearing force muscle 4, lower bearing force muscle top-down interval arrangement, well bearing force muscle 4 is the horizontal strengthening rib of arranging along the horizontal direction, upward be connected with brace rod 5 between bearing force muscle and the lower bearing force muscle, brace rod 5 is the vertical strengthening rib of arranging along vertical direction, brace rod 5 and well bearing force muscle 4 are perpendicular and handing-over to be arranged, brace rod 5, well bearing force muscle 4 separate the inside energy-absorbing chamber of branch carrier beam body for a plurality of sub-energy-absorbing chambeies.

Further, the upper edge and the lower edge of the lap joint plate 3 respectively extend upwards and downwards to form lap joint edges, and the lap joint edges are provided with load-sharing beam mounting holes 6.

Furthermore, the coaming 2, the lapping plate 3, the upper bearing rib and the lower bearing rib enclose a hollow structure with an approximately trapezoidal cross section.

Furthermore, the upper bearing rib is composed of a first upper bearing rib 7 and a second upper bearing rib 8, the lower bearing rib is composed of a first lower bearing rib 9 and a second lower bearing rib 10, the first upper bearing rib 7 and the first lower bearing rib 9 are horizontally arranged, and the second upper bearing rib 8 and the second lower bearing rib 10 are obliquely arranged.

Furthermore, the one end that carrier rib 8 is connected with the faying plate 3 upwards inclines to be arranged on the second, the one end downward sloping that carrier rib 10 is connected with the faying plate 3 is arranged under the second.

Furthermore, the coaming 2, the lapping plate 3, the upper bearing rib, the middle bearing rib 4, the lower bearing rib and the support rib 5 are all extruded and formed by adopting an aluminum extrusion material.

Further, the load sharing beam body 1 is connected with the threshold beam body 11 through a sheet metal support.

Further, the load distributing beam body 1 penetrates 1/2 the passenger compartment along the longitudinal direction.

Furthermore, the longitudinal front part of the load sharing beam body 1 is connected to the lower part of the column A and is connected through bolts, and the middle part of the load sharing beam body 1 is respectively provided with a screwed point in the front and rear cross beam areas of the seat.

Compared with the prior art, the utility model has the following advantages:

(1) the load-sharing beam body adopts a flexible connection design, the maintainability is good, and the load-sharing beam body is made of aluminum, the density of the aluminum is low, and the structural weight is light;

(2) the load-sharing beam structure is provided with a plurality of cavity structures, has high rigidity and good energy absorption effect, and can bear larger side impact;

(3) the utility model adopts the aluminum extrusion process design, has low die cost and is convenient to match with different vehicle types for length adjustment;

(4) the load-sharing beam and the sill beam are connected by the sheet metal bracket, so that steel-aluminum lap joint is reduced, and corrosion risk is reduced;

in summary, the utility model provides a sill load-sharing beam structure for a vehicle body, which obtains sufficient safety performance in a simple manner and with light weight, and simultaneously can satisfy the existing vehicle manufacturing process, solve the problem of column impact with a small energy-absorbing space, and is particularly suitable for electric vehicles.

[ description of the drawings ]

FIG. 1 is a schematic cross-sectional structure of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is an assembly schematic of the present invention;

in the figure: 1. divide and carry roof beam body 2, bounding wall 3, overlap joint board 4, well carrier rib 5, brace rod 6, divide and carry roof beam mounting hole 7, first last carrier rib 8, second on carrier rib 9, first carrier rib 10, second carrier rib 11, threshold roof beam body 12, divide and carry roof beam installing support 13, divide and carry roof beam mounting nut.

[ detailed description of the utility model ]

The utility model is further described below with reference to the accompanying drawings:

as shown in the attached drawings, the utility model provides a doorsill internal load-sharing beam structure, which comprises a load-sharing beam body 1, wherein the load-sharing beam body 1 comprises a coaming 2, an overlap plate 3, an upper bearing rib, a middle bearing rib 4 and a lower bearing rib, wherein the upper bearing rib, the middle bearing rib 4 and the lower bearing rib are connected between the coaming 2 and the overlap plate 3; the upper edge and the lower edge of the lap joint plate 3 respectively extend upwards and downwards to form lap joint edges, and the load-sharing beam mounting holes 6 are formed in the lap joint edges, so that the lap joint plates can be mounted on the threshold beam body 11.

Wherein, the coaming 2, the lapping plate 3, the upper bearing rib, the middle bearing rib 4, the lower bearing rib and the support rib 5 are all extruded and formed by aluminum extrusion materials. The upper bearing rib is composed of a first upper bearing rib 7 and a second upper bearing rib 8, the lower bearing rib is composed of a first lower bearing rib 9 and a second lower bearing rib 10, the first upper bearing rib 7 and the first lower bearing rib 9 are arranged horizontally, the second upper bearing rib 8 and the second lower bearing rib 10 are arranged obliquely, one end of the second upper bearing rib 8 connected with the lap plate 3 is arranged obliquely upwards, one end of the second lower bearing rib 10 connected with the lap plate 3 is arranged obliquely downwards, the first upper bearing rib 7, the first lower bearing rib 9, the middle bearing rib 4, the surrounding plate 2 and the supporting rib form an energy absorption cavity with a rectangular cross section between the supporting ribs 5, and the second upper bearing rib 8, the second lower bearing rib 10, the supporting rib 5, the lap plate 3 and the middle bearing rib 4 form an energy absorption cavity with a right trapezoid cross section between the supporting ribs 8, 10, 5, 4.

The utility model provides a threshold load-sharing beam structure for a vehicle body, wherein the whole load-sharing beam is designed by adopting an aluminum extrusion material, the whole section of the load-sharing beam is designed in an approximate trapezoid shape, and reinforcing ribs in the load-sharing beam are designed to be a bearing rib and a supporting rib; the load-sharing beam structure achieves sufficient safety performance in its simple manner and light weight while also satisfying the existing vehicle manufacturing process. The load-sharing beam body 1 longitudinally penetrates 1/2 the passenger compartment, and the load-sharing beam body 1 is connected with the threshold beam body 11 by a sheet metal bracket. The design of the load sharing beam is mainly used for solving the problem of column collision with a smaller energy absorption space, and is particularly used for electric automobiles. And simultaneously, the small offset collision problem is considered. The longitudinal front part is connected to the lower position of the A column, and is connected by bolts, so that the longitudinal front part is effectively supported when the longitudinal front part is offset by 25% and collided. The middle part of the load-sharing beam is respectively provided with a screw joint point in the front and rear beam areas of the seat, so that the effectiveness of lateral force transmission is ensured.

As an example one: the door sill is formed by an outer steel or aluminum stamping and the inner by an aluminum extruded profile. Both the upper and lower ends of the stamping part and the extruded section bar are provided with flange faces for connection. The doorsills on the two sides can be connected in a riveting, welding, bonding or screwing mode. The cross section of the stamping part is approximately arched. The cross-section of the extruded profile is approximately square. The cross section of the extruded section consists of a plurality of hollow cavity structures.

As example two: and adding a section of extrusion profile reinforcing piece in the middle of the threshold. The extruded profile reinforcement is connected to the door sill by means of a riveted weld bond or by means of a screw connection. The extrusion direction of the extrusion profile reinforcement is parallel to the axial direction of the threshold. The extruded profile reinforcement is comprised of a plurality of cavity structures. The extrusion reinforcement is aluminum.

The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.

Claims (9)

1. The utility model provides a divide carrier beam structure in threshold which characterized in that: including dividing and carrying roof beam body (1), divide and carry roof beam body (1) including bounding wall (2), faying plate (3) and connect last bearing force muscle, well bearing force muscle (4) and the lower bearing force muscle between bounding wall (2) and faying plate (3), go up bearing force muscle, well bearing force muscle (4), lower bearing force muscle top-down interval arrangement, well bearing force muscle (4) are the horizontal strengthening rib of arranging along the horizontal direction, upward be connected with brace rod (5) between bearing force muscle and the lower bearing force muscle, vertical strengthening rib that brace rod (5) were arranged along vertical direction, brace rod (5) and well bearing force muscle (4) are perpendicular and handing over and arrange, brace rod (5), well bearing force muscle (4) will divide and carry roof beam body (1) inside energy-absorbing chamber to separate for a plurality of energy absorption chambeies.

2. The sill inner load-dividing beam structure of claim 1, wherein: the upper edge and the lower edge of the lap joint plate (3) respectively extend upwards and downwards to form lap joint edges, and the lap joint edges are provided with load sharing beam mounting holes (6).

3. The sill inner load-dividing beam structure of claim 1, wherein: the coaming (2), the lapping plate (3), the upper bearing rib and the lower bearing rib enclose a hollow structure with an approximately trapezoidal cross section.

4. The sill inner load-dividing beam structure of claim 1, wherein: go up the carrier muscle by first last carrier muscle (7) and second on carrier muscle (8) constitute, carrier muscle comprises first carrier muscle (9) and second carrier muscle (10) down, first last carrier muscle (7), first carrier muscle (9) equal level are arranged, carrier muscle (8), second carrier muscle (10) equal tilting are arranged on the second.

5. The sill inner load-dividing beam structure of claim 4, wherein: one end that bearing muscle (8) and overlap joint board (3) are connected is the tilt up to be arranged on the second, the one end tilt down arrangement that bearing muscle (10) and overlap joint board (3) are connected under the second.

6. The sill inner load-dividing beam structure of claim 1, wherein: the coaming (2), the lapping plate (3), the upper bearing rib, the middle bearing rib (4), the lower bearing rib and the supporting rib (5) are all formed by extrusion of aluminum extrusion materials.

7. The sill inner load-dividing beam structure of claim 1, wherein: the load-sharing beam body (1) is connected with the threshold beam body (11) through a sheet metal support.

8. The sill inner load-dividing beam structure of claim 1, wherein: the load distributing beam body (1) penetrates 1/2 the passenger compartment along the longitudinal direction.

9. The sill inner load-dividing beam structure of claim 1, wherein: the longitudinal front part of the load sharing beam body (1) is connected to the lower part of the column A and is connected through bolts, and the middle part of the load sharing beam body (1) is respectively provided with a screwed joint in the front and rear cross beam areas of the seat.

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