CN212950846U - Side wall inner panel and vehicle - Google Patents

Abstract

The utility model discloses a side wall inner plate and a vehicle, wherein the side wall inner plate comprises an A column inner plate and a B column inner plate; the A-pillar inner plate comprises a first hard area, a first transition area and a first soft area, wherein the first transition area is positioned between the first hard area and the first soft area; the B column inner plate comprises a second hard area, a second transition area and a second soft area, wherein the second transition area is positioned between the second hard area and the second soft area; at least one welding edge soft area is further arranged on the B column inner plate; the second hard area is connected with the first soft area, and the second soft area is connected with the threshold beam. The utility model discloses a side wall inner panel and vehicle are through in the soft district of reasonable position design, can make the local toughness of side wall obtain increasing, and the energy-absorbing of side wall rational in infrastructure is with warping in guaranteeing the side impact, avoids solder joint fracture and panel beating fracture.

Description

Side wall inner panel and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to side wall inner panel and vehicle.

Background

The automobile side wall is a key part for manufacturing an automobile body, and the appearance and the performance of an automobile are directly influenced by the manufacturing quality of the automobile side wall. The side wall inner plate is generally of an annular structure, one side of the annular structure is a B column, the main function of the B column is to provide protection in the event of a side collision, and the B column is expected to generate controllable deformation in the event of the side collision so as to protect passengers as much as possible, and the B column is mainly used for absorbing energy. But simultaneously, certain intensity needs to be guaranteed again to side wall inner panel itself.

In the prior art, the toughness of a hot forming material is poor, and if the energy absorption bending deformation of the side wall structure is unreasonable in side collision, welding spots are prone to crack and sheet metal parts are prone to break, so that the collision safety is affected, and the safety of passengers in a vehicle is endangered.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art's is not enough, provides a side wall inner panel, through at the soft district of reasonable position design, when can making its bulk strength satisfy the requirement, local toughness obtains increasing, guarantees among the side collision energy-absorbing and deformation that the side wall is rational in infrastructure, avoids solder joint fracture and panel beating fracture.

The utility model provides a side wall inner plate, which comprises an A column inner plate and a B column inner plate; the A-pillar inner plate comprises a first hard area, a first transition area and a first soft area, wherein the first transition area is positioned between the first hard area and the first soft area; the B column inner plate comprises a second hard area, a second transition area and a second soft area, wherein the second transition area is positioned between the second hard area and the second soft area; at least one welding edge soft area is further arranged on the B column inner plate; the second hard area is connected with the first soft area, and the second soft area is connected with the threshold beam.

Optionally, the soft welded edge region is located at an upper end of the second hard region.

Optionally, the soft welding edge zone is located at the lower end of the second hard zone.

Optionally, the side wall inner panel further comprises an a-pillar reinforcement plate, and the a-pillar reinforcement plate is arranged on the inner side of the a-pillar inner panel.

Optionally, the a-pillar stiffener includes a third hard zone, a third transition zone, and a third soft zone corresponding to the first hard zone, the first transition zone, and the first soft zone, respectively.

Optionally, the side wall inner panel further comprises a B-pillar reinforcement plate, and the B-pillar reinforcement plate is disposed on the outer side of the B-pillar inner panel.

Optionally, the B-pillar reinforcement plate is disposed outside the second hard region, and the shape of the B-pillar reinforcement plate matches the second hard region.

Optionally, the width of the first transition area is 35-45 mm, and the height of the second transition area is 45-55 mm.

Optionally, the pillar inner panel a and the pillar inner panel B are integrally formed by a thermoforming material process.

The utility model also provides a vehicle, including foretell arbitrary side wall inner panel.

Adopt above-mentioned technical scheme, side wall inner panel and vehicle have following beneficial effect:

the utility model discloses a side wall inner panel is through in the soft district of reasonable position design, when can making the bulk strength of side wall structure satisfy the requirement, local toughness also obtains increasing, guarantees the energy-absorbing and the deformation that the side wall is rational in infrastructure in the side collision, can effectively avoid solder joint fracture and panel beating fracture, and then improves the security performance of vehicle.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of an alternative side gusset inner panel in an embodiment of the present application;

FIG. 2 is a schematic view of an alternative A-pillar stiffener according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of an alternative B-pillar stiffener according to an embodiment of the present disclosure.

The following is a supplementary description of the drawings:

1-a pillar inner panel; 101-a first hard region; 102-a first transition zone; 103-a first soft zone; 2-B pillar inner panel; 201-a second hard region; 202-a second transition zone; 203-a second soft zone; 204-welding the edge soft zone; 3-a sill beam; 4-a column reinforcement plate; 401-third hard region; 402-a third transition zone; 403-third soft zone; 5-B column reinforcing plate.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

Referring to fig. 1, fig. 1 is a schematic view of an alternative side gusset inner panel according to an embodiment of the present application, where in fig. 1, the side gusset inner panel includes an a pillar inner panel 1 and a B pillar inner panel 2; wherein, the a-pillar inner panel 1 comprises a first hard area 101, a first transition area 102 and a first soft area 103 (the specific division of each area in the figure is marked by a dotted line), and the first transition area 102 is located between the first hard area 101 and the first soft area 103; the B-pillar inner panel 2 comprises a second hard area 201, a second transition area 202 and a second soft area 203, wherein the second transition area 202 is arranged between the second hard area 201 and the second soft area 203; the second hard area 201 is connected vertically to the first soft area 103 and the second soft area 203 is connected to the rocker beam 3, forming a side wall structure of the car.

Wherein, the B-pillar inner plate 2 is also provided with at least one welding edge soft area 204; two soft welded edge areas 204 are shown in fig. 1, one at the upper end of the welded edge on one side of the second hard area 201 and the other at the lower end of the welded edge on the other side of the second hard area 201.

In specific implementation, the soft welding edge region 204 can be arranged as shown in the figure, and can also be arranged at other weak welding edge positions, and the shape and size of the soft welding edge region 204 are not particularly limited.

The soft areas are distributed and arranged, and comprise that the soft areas are designed at the lap joint positions of the lower ends of the B columns and the doorsills, so that the toughness of the lower parts of the B columns can be increased, better energy absorption deformation is ensured, and unreasonable bending fracture of the upper ends of the B columns is avoided; the soft area is designed on the column A, so that reasonable deformation of a lap joint area of the column A and the upper part of the column B can be ensured, the reasonability of integral deformation of a vehicle body when side collision occurs is ensured, and the problems of welding spot cracking and sheet metal part fracture are avoided; the soft area is designed at the weak position of the welding edge of the upper part and the lower part of the B column, so that the welding spot cracking during the torsional deformation of the B column can be effectively avoided, and the structural integrity of the B column is further ensured.

As an alternative implementation manner, the side body inner panel of the embodiment of the present application further includes an a-pillar reinforcement plate 4 (as shown in fig. 2) for further reinforcing the a-pillar, and the a-pillar reinforcement plate 4 is disposed on the inner side of the a-pillar inner panel 1 and includes a third hard region 401, a third transition region 402 and a third soft region 403 corresponding to the first hard region 101, the first transition region 102 and the first soft region 103, respectively.

As an alternative implementation manner, the side inner panel of the embodiment of the present application further includes a B-pillar reinforcement plate 5 (as shown in fig. 3) for further reinforcing the B-pillar, the B-pillar reinforcement plate 5 is disposed outside the second hard area 201, and the shape of the B-pillar reinforcement plate 5 matches the second hard area 201.

As an alternative embodiment, the width of the first transition area 102 is 35-45 mm, and the height of the second transition area 202 is 45-55 mm.

As an alternative embodiment, the a-pillar inner panel 1 and the B-pillar inner panel 2 are integrally formed by a thermoforming material process.

In the specific implementation, the microstructure of the steel plate processed by the hot forming process is mainly composed of very hard martensite, the strength of the steel plate can reach 1500Mpa, which is 3-4 times of the strength of the common steel plate, and the steel plate can simultaneously give consideration to collision safety and light weight, and is widely used in the vehicle body structure at present. However, the toughness of the hot forming material is poor, and if the energy absorption bending deformation of the side wall structure is not reasonable in side collision, welding spot cracking and sheet metal part fracture are easily caused, so that the collision safety is affected, and the safety of passengers in the vehicle is endangered. The soft area of the side wall inner plate is obtained by slow cooling in the ultrahigh strength thermal forming process, and the strength of the soft area can reach 500-700 Mpa. The process of integral forming is adopted, the intensity matching is not required to be realized by welding different thick steel plates, the increase of the number of parts and the processing cost can be avoided, and the flatness of the surfaces of the parts can be ensured.

The embodiment of the application also provides a vehicle, including above-mentioned arbitrary side wall inner panel.

The utility model discloses a side wall inner panel and vehicle has following beneficial effect:

the utility model discloses a side wall inner panel is through in the soft district of reasonable position design, when can making the bulk strength of side wall structure satisfy the requirement, has increased local toughness, guarantees the energy-absorbing and the deformation that the side wall is rational in infrastructure in the side collision, can effectively avoid solder joint fracture and panel beating fracture, and then improves the security performance of vehicle.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The side wall inner plate is characterized by comprising an A-pillar inner plate (1) and a B-pillar inner plate (2);

the A-pillar inner panel (1) comprises a first hard area (101), a first transition area (102) and a first soft area (103), wherein the first transition area (102) is located between the first hard area (101) and the first soft area (103);

the B-pillar inner panel (2) comprises a second hard area (201), a second transition area (202) and a second soft area (203), wherein the second transition area (202) is located between the second hard area (201) and the second soft area (203);

at least one welding edge soft area (204) is further arranged on the B-pillar inner plate (2);

the second hard area (201) is connected with the first soft area (103), and the second soft area (203) is connected with the threshold beam (3).

2. The side gusset inner panel according to claim 1, wherein the welded soft border region (204) is located at an upper end of the second hard border region (201).

3. The side gusset inner panel according to claim 1, wherein the welded soft border region (204) is located at a lower end of the second hard border region (201).

4. The side gusset inner panel according to claim 1, further comprising an a-pillar reinforcement panel (4), the a-pillar reinforcement panel (4) being disposed on an inner side of the a-pillar inner panel (1).

5. The side gusset inner panel according to claim 4, wherein the A-pillar reinforcement panel (4) includes a third hard zone (401), a third transition zone (402) and a third soft zone (403) corresponding to the first hard zone (101), the first transition zone (102) and the first soft zone (103), respectively.

6. The side body inner panel according to claim 1, further comprising a B-pillar reinforcement panel (5), the B-pillar reinforcement panel (5) being disposed outside the B-pillar inner panel (2).

7. The side body inner panel according to claim 6, wherein the B-pillar reinforcement panel (5) is disposed outside the second hard zone (201), and the shape of the B-pillar reinforcement panel (5) matches the second hard zone (201).

8. The side body inner panel according to claim 1, wherein the width of the first transition area (102) is 35-45 mm, and the height of the second transition area (202) is 45-55 mm.

9. The side gusset inner panel according to claim 1, wherein the a pillar inner panel (1) and the B pillar inner panel (2) are integrally formed by a thermo-forming material process.

10. A vehicle characterized by comprising the side gusset inner panel as recited in any one of claims 1 to 9.

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