CN218616912U

CN218616912U - Car body threshold bearing structure and vehicle

Info

Publication number: CN218616912U
Application number: CN202222546729.1U
Authority: CN
Inventors: 周丹凤
Original assignee: Yibin Cowin Auto Co Ltd
Current assignee: Yibin Cowin Auto Co Ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-03-14
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses an automobile body threshold bearing structure, including setting up the threshold energy-absorbing box in the threshold die cavity of threshold inner panel, set up the lightening hole on the threshold energy-absorbing box, the threshold energy-absorbing box with first internal face, second internal face and the third internal face connection in the threshold die cavity, threshold energy-absorbing box and seat crossbeam are located on the same straight line of length direction looks vertically with the threshold inner panel, and first internal face and third internal face are mutual disposition, and the second internal face is located between first internal face and the third internal face. The utility model discloses an automobile body threshold bearing structure forms horizontal biography power route with the seat crossbeam through threshold energy-absorbing box when the side collision, effectively supports the threshold die cavity, resists the deformation of threshold upper portion to avoid the B post support performance decline that leads to because of the threshold upset. The utility model also discloses a vehicle.

Description

Car body threshold bearing structure and vehicle

Technical Field

The utility model belongs to the technical field of vehicle body structure, specifically speaking, the utility model relates to an automobile body threshold bearing structure and vehicle.

Background

When the automobile is in side collision, the barrier directly acts on the side body structure of the automobile, and passengers in the automobile are separated from the barrier wall only by a 'wall'. Therefore, the design of the side structure of the vehicle body is particularly critical for side impact. The side wall mainly plays a role in supporting and comprises pillars A, B and C and a doorsill structure. With the increasing difficulty of the side impact working condition in recent years, the side impact barrier is increased from original 950kg to 1400kg, so that the impact energy is increased more, and higher challenge is provided for the rigidity of the side structure of the vehicle body.

In order to cope with worse collision working conditions and resist higher collision energy, the rigidity of the side structure of the vehicle body is gradually improved, and in order to achieve better effect, reinforcing plates and supporting structures are additionally arranged in cavities of the B column and the doorsill. This will undoubtedly increase the overall vehicle weight and the complexity of the welding. Taking the threshold as an example, in order to resist the problem that the intrusion amount of the B pillar cannot be controlled due to the turnover of the threshold in side impact, a support structure, called a threshold energy absorption box, is usually added in a cavity of the threshold. The structure is a box-type structure, and is connected with the inner plate or the outer plate of the threshold after being welded into a small assembly by two or more plates, and finally the inner plate and the outer plate of the threshold are connected. Such designs suffer from two drawbacks. Firstly, the box structure is mostly made of four or more metal plates, and the weight is relatively heavy; second, it involves sub-assembly welding, increasing the number of processes and welds, and thus increasing development and bicycle costs. Contrary to the desire of reducing weight of the vehicle body.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an automobile body threshold bearing structure, when the purpose realizes the effective support to the threshold, reduce weight.

In order to realize the purpose, the utility model discloses the technical scheme who takes does: the vehicle body threshold supporting structure comprises a threshold energy absorption box arranged in a threshold cavity of a threshold inner plate, wherein a lightening hole is formed in the threshold energy absorption box, the threshold energy absorption box is connected with a first inner wall surface, a second inner wall surface and a third inner wall surface in the threshold cavity, the threshold energy absorption box and a seat beam are positioned on the same straight line perpendicular to the length direction of the threshold inner plate, the first inner wall surface and the third inner wall surface are arranged oppositely, and the second inner wall surface is positioned between the first inner wall surface and the third inner wall surface.

The seat cross beams are arranged in a plurality of numbers, the number of the seat cross beams is the same as that of the threshold energy absorption boxes, and each threshold energy absorption box and one seat cross beam are positioned on the same straight line perpendicular to the length direction of the threshold inner plate.

The number of the seat cross beams and the number of the threshold energy absorption boxes are two.

The doorsill energy absorption box comprises an energy absorption box body and a first flanging which is arranged on the energy absorption box body and connected with the first inner wall surface.

The doorsill energy absorption box further comprises a second flanging which is arranged on the energy absorption box body and connected with the second inner wall face.

The energy absorption box body comprises a first side wall, a second side wall and a third side wall, the first side wall and the second side wall are arranged oppositely, and the third side wall is located between the first side wall and the second side wall and connected with the first side wall and the second side wall.

The utility model also provides a vehicle, include automobile body threshold bearing structure.

The utility model discloses an automobile body threshold bearing structure, form horizontal biography power route with the seat crossbeam when the side collision through the threshold energy-absorbing box, effectively support the threshold die cavity, it warp to resist threshold upper portion, thereby avoid descending because of the B post support performance that the threshold upset leads to, make automobile body side structure as effective protective screen, resist the side impact wall barrier and invade to the car in, for the car in passenger strives for bigger living space, reduce the interior passenger's injury risk and the degree in the side collision of car, and can make weight and cost obtain effective control.

Drawings

The description includes the following figures, the contents shown are respectively:

FIG. 1 is an assembled view of the body sill support structure of the present invention;

FIG. 2 is an elevation view of a sill energy absorber box;

FIG. 3 is a side view of the sill energy box;

labeled in the figure as: 1. an A column inner plate; 2. a front seat front cross member; 3. a front seat rear cross member; 4. a front floor; 5. a threshold energy-absorbing box; 6. a rocker inner panel.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.

It should be noted that, in the following embodiments, the terms "first", "second" and "third" do not denote absolute differences in structure and/or function, nor do they denote a sequential order of execution, but rather are used for convenience of description.

As shown in fig. 1 to fig. 3, the utility model provides an automobile body threshold bearing structure, including setting up threshold energy-absorbing box 5 in threshold type intracavity of threshold inner panel 6, set up the lightening hole on the threshold energy-absorbing box 5, threshold energy-absorbing box 5 is U type structure, first internal face in threshold energy-absorbing box 5 and the threshold type intracavity, second internal face and third internal face are connected, threshold energy-absorbing box 5 is located the same straight line with the length direction looks vertically of threshold inner panel 6 with the seat crossbeam, first internal face and third internal face are mutual disposition, the second internal face is located between first internal face and the third internal face.

Specifically speaking, the utility model discloses mainly carry out the optimal design to 5 structures of current threshold energy-absorbing box, when reaching the same effect, reduce spare part quantity, can realize the effective support to the threshold through the design optimization to a structure. Thereby achieving the function of resisting the threshold turnover. As shown in fig. 1, when a collision occurs, the collision force is transmitted to the rocker support structure through the rocker outer plate, and the rocker energy-absorbing box 5 and the seat cross beam are on the same horizontal line, so that a smooth and stable force transmission path is formed, and the lateral collision force is smoothly received through the rocker support structure and is transmitted to the seat cross beam. The design of the doorsill energy absorption box 5 effectively supports the doorsill cavity, inhibits the upper space of the cavity from being compressed, and avoids the inward overturn of the upper part of the doorsill, so that the inward invasion of the side wall B column is better controlled, and a larger living space is strived for passengers.

As shown in fig. 1, the length direction of the rocker inner panel 6 is parallel to the length direction of the vehicle body, the length direction of the seat cross beam is parallel to the width direction of the vehicle body, the rocker inner panel 6 is fixedly connected with the rocker outer panel, the rocker energy-absorbing box 5 is fixedly connected with the rocker inner panel 6 and the rocker outer panel, the rocker energy-absorbing box 5 is located in the inner cavity of the rocker inner panel 6, the length direction of the rocker outer panel is parallel to the length direction of the rocker inner panel 6, the rocker inner panel 6 is in a U-shaped structure with a cross section (the cross section is a section perpendicular to the length direction of the rocker inner panel 6), and the rocker outer panel closes the outer opening of the rocker inner panel 6.

Preferably, the seat cross beams are arranged in a plurality, the number of the seat cross beams is the same as that of the threshold energy-absorbing boxes 5, and each threshold energy-absorbing box 5 and one seat cross beam are located on the same straight line parallel to the width direction of the vehicle body, so that the supporting effect is better.

As shown in fig. 1, in the present embodiment, two seat cross beams and two threshold crash boxes 5 are provided, the two seat cross beams are sequentially arranged along the length direction of the threshold inner panel 6, the two seat cross beams are respectively located on the front seat cross beam 2 and the front seat cross beam 3, and the front seat cross beam 2 and the front seat cross beam 3 are used for installing seats.

As shown in fig. 1 to 3, the rocker energy absorption box 5 includes an energy absorption box body and a first flange that is provided on the energy absorption box body and is connected to a first inner wall surface, and the first inner wall surface and a third inner wall surface are planes parallel to the length direction and the width direction of the vehicle body.

As shown in fig. 1 to 3, the sill energy absorption box 5 further includes a second flange disposed on the energy absorption box body and connected to a second inner wall surface, and the second inner wall surface is a plane parallel to the length direction of the vehicle body and perpendicular to the width direction of the vehicle body.

As shown in fig. 1 to 3, the sill energy-absorbing box 5 further includes a third flange disposed on the energy-absorbing box body and fixedly connected to the outer plate of the sill.

As shown in fig. 1 to 3, the crash box body has a U-shaped structure, and includes a first sidewall, a second sidewall and a third sidewall, wherein the first sidewall and the second sidewall are disposed opposite to each other, and the third sidewall is disposed between and fixedly connected to the first sidewall and the second sidewall. The length directions of the first side wall and the second side wall are parallel, the length directions of the first side wall and the second side wall are parallel to the width direction of a vehicle body, lightening holes are formed in the first side wall and the second side wall, the lightening holes are through holes which penetrate through the first side wall and the second side wall along the wall thickness direction, and the lightening holes are formed, so that the light weight is realized, and the weight of the vehicle body doorsill supporting structure can be reduced. The component can meet the performance requirement and the lowest cost and weight.

As shown in fig. 1 to 3, the third sidewall is located above the first sidewall and the second sidewall, the third sidewall is located below the third inner wall surface, the third sidewall has a V-shaped structure, and the third sidewall is provided with a longitudinal reinforcing rib extending along the length direction of the third sidewall, so that the structural strength of the rocker energy-absorbing box 5 can be improved, and the support capability of the vehicle body rocker support structure can be improved.

As shown in fig. 1 to 3, the first side wall and the second side wall are both provided with first flanges, the first flanges are respectively located below the first side wall and the second side wall, the first flanges arranged on the first side wall extend out towards the outer side of the first side wall, the first flanges arranged on the second side wall extend out towards the outer side of the second side wall, and the first flanges are attached to the first inner wall surface. The one end on the length direction of first lateral wall and second lateral wall all sets up the second turn-ups, sets up the second turn-ups on first lateral wall and stretches out towards the outside of first lateral wall, sets up the second turn-ups on the second lateral wall and stretches out towards the outside of second lateral wall, and the second turn-ups laminates with the second internal face. The other end of the first side wall and the other end of the second side wall in the length direction are both provided with third flanges, the third flanges arranged on the first side wall extend out towards the outer side of the first side wall, the third flanges arranged on the second side wall extend out towards the outer side of the second side wall, and the third flanges are attached to the surface of the doorsill outer plate.

The utility model also provides a vehicle, automobile body threshold bearing structure including above-mentioned structure. The detailed structure of the rocker support structure can refer to fig. 1 to 3, and will not be described herein. Since the vehicle of the present invention includes the vehicle body sill support structure in the above embodiment, it has all the advantages of the above vehicle body sill support structure.

The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. As long as the method conception and the technical scheme of the utility model are adopted for various insubstantial improvements; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.

Claims

1. Automobile body threshold bearing structure, including setting up the threshold energy-absorbing box in the threshold die cavity of threshold inner panel, its characterized in that: the energy absorption box is characterized in that a lightening hole is formed in the energy absorption box, the energy absorption box is connected with a first inner wall surface, a second inner wall surface and a third inner wall surface in the cavity of the threshold, the energy absorption box and the seat beam are positioned on the same straight line perpendicular to the length direction of the inner plate of the threshold, the first inner wall surface and the third inner wall surface are arranged oppositely, and the second inner wall surface is positioned between the first inner wall surface and the third inner wall surface.

2. The vehicle body rocker support structure according to claim 1, characterized in that: the seat cross beams are arranged in a plurality of numbers, the number of the seat cross beams is the same as that of the threshold energy absorption boxes, and each threshold energy absorption box and one seat cross beam are positioned on the same straight line perpendicular to the length direction of the threshold inner plate.

3. The vehicle body sill support structure of claim 2, characterized in that: the seat beam and the threshold energy absorption box are arranged in two numbers.

4. The vehicle body sill support structure of any of claims 1 to 3, characterized in that: the threshold energy-absorbing box comprises an energy-absorbing box body and a first flanging which is arranged on the energy-absorbing box body and connected with the first inner wall surface.

5. The vehicle body sill support structure of claim 4, wherein: the doorsill energy absorption box further comprises a second flanging which is arranged on the energy absorption box body and connected with the second inner wall face.

6. The vehicle body rocker support structure according to claim 5, characterized in that: the energy absorption box body comprises a first side wall, a second side wall and a third side wall, the first side wall and the second side wall are arranged oppositely, and the third side wall is located between the first side wall and the second side wall and connected with the first side wall and the second side wall.

7. A vehicle, characterized in that: comprising the body sill support structure of any of claims 1 to 6.