CN212556504U

CN212556504U - Automobile B-pillar structure capable of improving side collision performance

Info

Publication number: CN212556504U
Application number: CN202020919745.9U
Authority: CN
Inventors: 李河河; 刘建胜; 郭大洲
Original assignee: Zhejiang Leapmotor Technology Co Ltd
Current assignee: Zhejiang Zero Run Technology Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-19
Anticipated expiration: 2030-05-27

Abstract

The utility model discloses an improve car B post structure of side impact performance, including B post inner panel, side wall planking and the inboard B post reinforcing plate of side wall planking, B post reinforcing plate inboard be equipped with B post middle part fagging, B post middle part fagging be a few font along B post extending direction's cross-section, B post inner panel inboard be equipped with the high modulator reinforcing plate, the high modulator reinforcing plate be equipped with the cockscomb structure side cut along B post extending direction's cross-section both sides, B post middle part fagging and B post reinforcing plate between be equipped with the spot welding point, high modulator reinforcing plate be equipped with the spot welding point with B post inner panel. The utility model discloses an improve car B post structure of side collision performance through the inside B post middle part fagging and the high accent ware reinforcing plate that increases several fonts at the B post under the condition that does not increase B post material thickness for B post structure satisfies, and the light-weighted requirement of automobile body is satisfied to the intensity requirement when the side collision of no carriage door automobile body simultaneously.

Description

Automobile B-pillar structure capable of improving side collision performance

Technical Field

The utility model relates to an automobile frame, especially an improve car B post structure of side impact performance.

Background

The automobile B column refers to a longitudinal column between a front seat and a rear seat of an automobile cab and between two doors on two sides, extends from the top of the automobile to the bottom of the automobile, and is the column where the safety belt is located when viewed from the inner side; the B column is used for supporting the roof of the automobile and resisting bending and torsion of the automobile frame caused by external force; the safety belt is fixed, and the safety of the side impact of the vehicle is improved; at present, in a framed vehicle door in the market, the size of a cavity of a B column is in gentle transition, and in a simulation experiment of vehicle side collision, the deformation of the B column presents pendulum type deformation, namely the deformation of the B column is gradually increased from top to bottom; the side impact simulation experiment of the frameless vehicle door has the disadvantages that the side impact simulation experiment of the frameless vehicle door cannot meet the requirement on safety performance in the side impact simulation experiment because the side impact simulation experiment of the frameless vehicle door has larger force born by the B column and larger invasion amount because the side impact simulation experiment of the frameless vehicle door has no vehicle door sash. For example, a B-pillar assembly disclosed in chinese patent literature, whose publication No. CN205836952U, includes two B-pillar bodies, a first cross beam, and two B-pillar reinforcement beams, wherein top ends of the two B-pillar bodies are located above a rear upper main beam of an automobile, and bottom ends of the two B-pillar bodies are connected to a sill beam on a corresponding side of the automobile; two ends of the first cross beam are in lap joint with and fixed on a rear upper main beam on the corresponding side of the automobile; the two B-column reinforcing beams are positioned on the inner sides of the two B-column bodies, the lower sections of the B-column reinforcing beams are overlapped with the upper sections of the B-column bodies, the outer side walls of the B-column reinforcing beams are connected with the inner side walls of the B-column bodies, the top ends of the two B-column reinforcing beams support a top cover of an automobile, and the bottom ends of the two B-column reinforcing beams are connected with the first cross beam; however, the B-pillar is not suitable for a vehicle without a frame door because the strength of the B-pillar is far insufficient for the vehicle without the frame door although the weight of the B-pillar is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome the problem that the intensity of prior art B post is not applicable to the vehicle of frameless door, provide a B post structure that improves side collision performance suitable for frameless door car.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a B-pillar structure of an automobile for improving side collision performance comprises a B-pillar inner plate, a side-wall outer plate and a B-pillar reinforcing plate on the inner side of the side-wall outer plate, and is characterized in that a B-pillar middle supporting plate is arranged on the inner side of the B-pillar reinforcing plate, a high modulator reinforcing plate is arranged on the outer side of the B-pillar inner plate, the B-pillar middle supporting plate is arranged on the upper portion of a B pillar, the high modulator reinforcing plate is arranged at the upper end of the B pillar, spot welding points are arranged between the B-pillar middle supporting plate and the B-pillar reinforcing plate, and the high modulator reinforcing plate and the B-pillar inner plate are provided with spot welding points; the deformation mode of the frameless vehicle door structure during side collision is poor, and generally, in order to enable the B column to meet the simulation of side collision, the material strength of a B column reinforcing plate and a B column inner plate is generally thickened, so that the B column has enough strength in a simulation experiment of the side collision; but like this although improved intensity, increased the cost, also made the technology degree of difficulty of punching press increase, be unfavorable for production to the weight increase of automobile body is unfavorable for the lightweight requirement of car, and B post reinforcing plate and B post inner panel are not thickened in this design, through installing B post middle part fagging and high modulator reinforcing plate additional, make the vehicle satisfy the intensity requirement in the side collision simulation experiment, through the lightweight requirement of realizing the automobile body.

Preferably, the cross section of the B-column middle supporting plate along the extending direction of the B-column is in a shape like a Chinese character 'ji', the top of the B-column middle supporting plate in the shape like a Chinese character 'ji' is provided with an inwards concave structure, the included angle between the two side surfaces of the B-column middle supporting plate in the shape like a Chinese character 'ji' and the B-column reinforcing plate is 70 to 90 degrees, and the cross section area formed by the heightening device reinforcing plate and the B-column reinforcing plate is larger than the cross section area formed by the B-column middle supporting plate and the B; design into a few font with B post middle part fagging, and the top is equipped with the structure of an indent, make the automobile body when receiving the side impact, B post reinforcing plate atress takes place deformation, inside extrusion, thereby give B post middle part fagging with the energy transfer of collision, make the board of a few font both sides of B post middle part fagging take place deformation, the deformation takes place to the indent edge, turn into the deformation energy of steel sheet with energy, design into several fonts of contained angle 70 to 90 degrees with B post middle part fagging and enlarged length and space of deformation, the influence to B post inner panel in the side impact simulation experiment has been reduced, thereby satisfy the intensity requirement in the side impact simulation experiment, the cross-sectional size that height regulator reinforcing plate and B post reinforcing plate formed is greater than the cross-section that B post middle part fagging and B post reinforcing plate formed, make there is the certain distance between the two boards and can not take place to interfere.

Preferably, 8-12 spot welding points are arranged on two sides of the reversed V shape between the B-pillar middle supporting plate and the B-pillar reinforcing plate, and the spot welding points are uniformly arranged on two side connecting surfaces between the B-pillar middle supporting plate and the B-pillar reinforcing plate; through ten spot welding points which are uniformly distributed, the middle supporting plate of the B column can meet the welding requirement when a vehicle is detected, and the attractiveness is improved.

Preferably, the length of the B-pillar middle supporting plate arranged in the extending direction of the B-pillar is 15-25 cm, the B-pillar middle supporting plate is made of a steel plate, and the thickness of the B-pillar middle supporting plate is 1-2 mm; for the middle supporting plate of the B column, a processing part of the middle supporting plate needs to be in a shape of a Chinese character 'ji', so that the middle supporting plate needs high plasticity, simultaneously needs to bear side collision and has high strength, HC340/590DP and similar steel materials are used, so that the middle supporting plate of the B column can have certain formability while considering high strength, and a steel plate of 1-2 mm is used, so that the weight is reduced as much as possible under the condition of meeting the strength, and the requirement of light weight is met.

Preferably, the reinforcement plate of the height adjuster is provided with sawtooth-shaped trimming edges at two sides of the cross section along the extension direction of the B column, and welding spots are arranged at gaps of the sawtooth-shaped trimming edges between the two sides of the cross section along the extension direction of the B column and the inner plate and the reinforcement plate of the B column; through the solder joint at the breach, can fix together four boards of board of high tone ware reinforcing plate, B post inner panel, B post enhancement version and side wall planking, avoided appearing the four-layer board simultaneously and carried out the welded condition through a solder joint, improved the stability and the reliability of B post structure, increased the intensity of B post in side collision simulation experiment.

Preferably, the middle of the reinforcing plate of the height adjuster and the joint surface of the inner plate of the B column are provided with spot welding points; the two sides of the reinforcement plate of the high-altitude regulator and the inner plate of the B column are provided with fixed welding spots, and spot welding is carried out on the connection surface, so that the reinforcement plate of the high-altitude regulator can be more stably fixed on the inner plate of the B column, and the comfort of the vehicle in the driving process can not be influenced due to collision caused by too close distance.

Preferably, the device is characterized in that a gap is arranged between the middle supporting plate of the B column and the inner plate of the B column, and the gap distance is 3-7 mm; because B post middle part fagging can take place deformation extrusion B post inner panel in the simulation, so will have certain space to let B post middle part fagging take place deformation to can not be too big apart from, whether the side can influence the holistic size of B post, can influence the whole of vehicle pleasing to the eye, set up suitable distance 3 to 7 millimeters, under the circumstances that has certain deformation space in the assurance, do not influence the structure of B post.

Therefore, the utility model discloses following beneficial effect has: (1) reducing the intrusion amount in a side impact simulation experiment; (2) the B-column reinforcing plate is not thickened, and the requirement of light weight is met.

Drawings

FIG. 1 is a schematic structural view of a B-pillar structure of an automobile for improving side impact performance;

FIG. 2 is a cross-sectional view of a B-pillar structure of an automobile for improving side impact performance;

FIG. 3 is a schematic structural diagram of welding of a B-pillar reinforcing plate and a B-pillar middle supporting plate;

fig. 4 is a structural schematic diagram of welding of the reinforcement plate of the altitude regulator on the B-pillar structure.

1, a B column inner plate; 2, a side outer plate; 3, a B column reinforcing plate; 4, middle supporting plates of the B columns; 5, a high adjuster reinforcing plate; and 6, welding points.

Detailed Description

The following provides a further description of embodiments of the present invention by way of examples and with reference to the accompanying drawings.

Example 1

In embodiment 1 shown in fig. 2, an automobile B-pillar structure for improving side impact performance includes a B-pillar inner panel 1, a side-surrounding outer panel 2, and a B-pillar reinforcement panel 3 inside the side-surrounding outer panel, and is characterized in that a B-pillar middle support panel 4 is disposed inside the B-pillar reinforcement panel, a height adjuster reinforcement panel 5 is disposed outside the B-pillar inner panel, the B-pillar middle support panel is disposed on an upper portion of a B-pillar, the length of the B-pillar extension direction is twenty centimeters, the cross section of the B-pillar middle support panel along the B-pillar extension direction is in a shape of a Chinese character 'ji', a concave structure is disposed on a top of the Chinese character 'ji' of the B-pillar middle support panel, an included angle between two side surfaces of the Chinese character 'ji' of the B-pillar middle support panel and the B-pillar reinforcement panel is 70 to 90 degrees, the thickness of the B-pillar middle support panel is 1.4 millimeters, the B-pillar middle support panel is made of HC340/590DP steel, and the cross-pillar reinforcement panel The novel high-altitude regulator comprises a column reinforcing plate, a B column middle supporting plate, a B column inner plate, a high-altitude regulator reinforcing plate, a B column middle supporting plate, a B column middle reinforcing plate, 10 spot welding points 6, a plurality of saw-toothed cutting edges, welding points and a plurality of auxiliary welding points, wherein the column reinforcing plate is formed in the cross section area, a gap is formed between the B column middle supporting plate and the B column inner plate, the gap distance is 5 mm, the high-altitude regulator reinforcing plate is arranged at the upper end of the B column, the 10 spot welding points are arranged on the two sides of the inverted V-shaped space between the B column middle supporting plate and the B column reinforcing plate, the spot welding points are evenly arranged on the two sides of the cross section of the high-altitude regulator reinforcing plate in the B column extending direction and between the two sides of the cross section of the high-altitude regulator reinforcing plate in the B column extending direction and the B.

When the installation is carried out, the B-pillar inner plate is fixed on the frame, and the reinforcing plate of the height adjuster is installed and spot-welded; spot welding a middle supporting plate of the B column on a B column reinforcing plate, fixing the B column reinforcing plate on a B column inner plate, welding at a notch of a height adjuster reinforcing plate, fixing the B column reinforcing plate, and finally welding a side wall outer plate outside the automobile on the B column reinforcing plate to finish installation; in a side collision experiment, the side wall outer plate and the B-pillar reinforcing plate are deformed and extruded inwards by the outside collision force, and two sides of the middle supporting plate of the B-pillar in the shape of a Chinese character 'ji' are extruded towards the inside of the automobile and deformed to absorb energy generated by collision; the bracing plate extrudees inwards in the middle of the B column, and because of the high adjuster reinforcing plate, the deformation of the inward extrusion of the B column inner plate is further reduced, the intrusion amount in a side collision simulation experiment is reduced, and the material is not thickened, so that the light-weight requirement of the vehicle body is met.

Claims

1. The utility model provides an improve car B post structure of side impact performance, includes B post inner panel (1), side wall planking (2) and inboard B post reinforcing plate (3) of side wall planking, characterized by, B post reinforcing plate inboard be equipped with B post middle part fagging (4), the B post inner panel outside be equipped with high tuner reinforcing plate (5), B post middle part backup pad set up the upper portion at the B post, high tuner reinforcing plate set up the upper end at the B post, B post middle part fagging and B post reinforcing plate between be equipped with spot welding point (6), high tuner reinforcing plate and B post inner panel be equipped with the spot welding point.

2. The B-pillar structure of claim 1, wherein the cross section of the middle supporting plate of the B-pillar along the extension direction of the B-pillar is in a zigzag shape, the top of the zigzag shape of the middle supporting plate of the B-pillar is provided with a concave structure, the included angle between the two side surfaces of the zigzag shape of the middle supporting plate of the B-pillar and the reinforcing plate of the B-pillar is 70 to 90 degrees, and the cross sectional area formed by the reinforcing plate of the altitude regulator and the reinforcing plate of the B-pillar is larger than the cross sectional area formed by the middle supporting plate of the B-pillar and the reinforcing plate of the B-pillar.

3. The B-pillar structure of claim 2, wherein 8 to 12 spot welding points are formed on both sides of the zigzag shape between the middle supporting plate and the reinforcing plate, and the spot welding points are uniformly formed on both side connecting surfaces between the middle supporting plate and the reinforcing plate.

4. The B-pillar structure of claim 1, wherein the B-pillar middle support plate is 15 to 25 cm long in the extending direction of the B-pillar, and is made of a steel plate, and has a thickness of 1 to 2 mm.

5. The B-pillar structure of claim 1, wherein the reinforcement plate of the recliner is provided with serrated cut edges on both sides of a cross section in the extending direction of the B-pillar, and the reinforcement plate of the recliner is provided with welding spots between both sides of a cross section in the extending direction of the B-pillar and the inner panel and the reinforcement plate of the B-pillar at the notches of the serrated cut edges.

6. The B-pillar structure for an automobile according to claim 5, wherein a spot welding point is provided at a joint of a middle of the reinforcement plate of the altitude regulator and the inner panel of the B-pillar.

7. The B-pillar structure for an automobile according to claim 1, 2 or 3, wherein a gap is provided between the middle strut plate and the inner plate of the B-pillar, and the gap distance is 3 to 7 mm.