CN213594375U

CN213594375U - Car B post, qianmen ring and car

Info

Publication number: CN213594375U
Application number: CN202022454934.6U
Authority: CN
Inventors: 张胜华
Original assignee: Shanghai Qishaden Engineering Technology Co ltd
Current assignee: Shanghai Qishaden Engineering Technology Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-07-02
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a car B post, qianmen ring and car, including rigid B post upper segment, soft B post hypomere and enhancement patch board, the upper end of B post upper segment be used for with car A post fixed connection, the lower extreme of B post upper segment and the upper end fixed connection of B post hypomere, the preceding rear side of B post hypomere lower part be used for respectively with preceding threshold and back threshold fixed connection, strengthen patch board through the local enhancement region and B post upper segment integrated into one piece of punching press at B post upper segment. The utility model also discloses a preceding knocker and car including above-mentioned car B post. The utility model provides a car B post, qianmen ring and car, car B post can absorb impact energy, and the deformation of car B post when the striking takes place for control, car B post intensity is high, light in weight, production efficiency is high, low in production cost, factor of safety are high.

Description

Car B post, qianmen ring and car

Technical Field

The utility model relates to an automobile manufacturing field especially relates to car B post, qianmen ring and car.

Background

The automobile B column is positioned between a front door and a rear door of an automobile, the automobile B column is an important structural part forming an automobile body framework, and the automobile A column, the automobile B column, the front doorsill and the rear doorsill are connected to form a front door ring. In the existing automobile manufacturing process, in order to improve the strength of an automobile body, an automobile B column generally integrally adopts a rigid plate with ultrahigh strength, and when an automobile collides, accidents such as rollover and the like are easy to happen due to the fact that the integral strength of the automobile body is high and the buffer type is not good; and because the whole body of the B column of the automobile is a rigid plate, when the B column of the automobile is impacted, the front door ring is deformed and damaged uncontrollably, if the upper part of the front door ring is seriously deformed or broken, the head of a driver or a passenger can be fatally injured, and the safety of the automobile is poor.

In addition, in the existing automobile manufacturing, some parts on the automobile B-pillar need to be locally reinforced, parts such as a cold stamping reinforcement and the like are often welded at the positions where the local reinforcement is needed, the automobile B-pillar welded with the cold stamping reinforcement is heavy, a welding spot area of the parts such as the cold stamping reinforcement and the like welded during collision is prone to cracking, tools such as a die and a clamp need to be additionally manufactured for manufacturing the cold stamping reinforcement, the production cost is high, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a car B post, qianmen ring and car, car B post can absorb impact energy, and the deformation of car B post when the striking takes place for control, car B post intensity is high, light in weight, production efficiency is high, low in production cost, factor of safety are high.

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

the utility model discloses a car B post, including rigid B post upper segment, soft B post hypomere and enhancement patch board, the upper end of B post upper segment be used for with car A post fixed connection, the lower extreme of B post upper segment with the upper end fixed connection of B post hypomere, the preceding rear side of B post hypomere lower part is used for respectively with preceding threshold and back threshold fixed connection, it is in through the punching press to strengthen the patch board the local enhancement region of B post upper segment with B post upper segment integrated into one piece.

The utility model has the advantages that: the lower section of the B column is soft, so that the B column can contract to absorb energy when collision occurs, the instantaneous impact is reduced, the injury to drivers and passengers is reduced, and meanwhile, the rollover accident caused by the overlarge instantaneous impact energy when the overall strength is too high can be avoided; after the lower section of the B-pillar contracts and absorbs energy, the lower part of the automobile A-pillar connected with the front doorsill and the front doorsill is easy to deform, so that the upper space of a front door ring can be ensured as much as possible, and the upper part of the front door ring is prevented from deforming or damaging the head of a driver or a passenger to cause fatal injury; the mode of strengthening regional the local of reinforcing through will strengthening the patch board punching press at the local of B post upper segment promotes the local intensity of B post upper segment, can satisfy the automobile body to the different intensity demand in each region, and B post upper segment intensity is high, need not weld other cold punching press reinforcements, and only local enhancement region laminating strengthens the patch board, and light in weight need not design in addition and make other frocks, through the punching press, is difficult for the fracture between B post upper segment and the enhancement patch board, and factor of safety is high.

Furthermore, the upper section of the B column, the reinforcing patch plate on the upper section of the B column and the lower section of the B column are fixedly connected and then integrally formed through punching.

The beneficial effect of adopting the further scheme is that: after the upper section of the B column, the reinforcing patch plate on the upper section of the B column and the lower section of the B column are fixed, one-step stamping is carried out, so that all parts are integrally formed, and only one-step stamping is needed, and a set of die is used; the problems that when the parts are manufactured independently and then fixedly connected, a mold needs to be designed independently, cost is high, independent processes are needed for producing the parts, and the processes are complex are solved.

Furthermore, the lower section of the B column is in an inverted T shape, and the protruding end parts on the front side and the rear side of the lower part of the lower section of the B column are respectively used for being fixedly connected with the front doorsill and the rear doorsill.

The beneficial effect of adopting the further scheme is that: the lower section of the B column is conveniently connected and fixed with the front doorsill and the rear doorsill, the buffering energy absorption area is long, the energy absorption effect is good, and the impact of the front doorsill on the rear doorsill can be reduced when collision occurs.

Furthermore, an included angle between the horizontal section and the vertical section of the lower section of the B column is in arc surface transition.

The beneficial effect of adopting the further scheme is that: when the automobile is impacted, the automobile slowly deforms along the cambered surface, so that the buffering performance can be improved, the deformation quantity can be reduced, and the safety is improved.

Furthermore, the yield strength of the upper section of the column B is 950-1300 MPa, the tensile strength is 1300-1650 MPa, the tensile test A80 is more than or equal to 4.5%, and the hardness is 400-520 HV.

The beneficial effect of adopting the further scheme is that: the upper section of the B column has high strength.

Further, the reinforcing patch plate is made of the same material as the upper section of the B column.

The beneficial effect of adopting the further scheme is that: the reinforced patch board has high strength, can utilize the rim charge cut off when manufacturing the upper section of the B column, and has high utilization rate of raw materials.

Furthermore, the yield strength of the lower section of the column B is 400-550 MPa, the tensile strength is 600-800 MPa, the tensile test A80 is more than or equal to 10%, and the hardness is 160-235 HV.

The beneficial effect of adopting the further scheme is that: the strength and the toughness can be considered, enough strength is guaranteed when no impact occurs, and when the impact occurs, the part is contracted and absorbed with energy, so that the side turning and the deformation of the front door ring are avoided.

The utility model discloses a qianmen ring, including foretell car B post.

The utility model discloses an automobile, including foretell car B post.

Drawings

Fig. 1 is a schematic view of a front door ring provided by the present invention;

FIG. 2 is a schematic view of the roof rail attached to the left and right side A pillars of the vehicle;

in the figure: 1. a column main body plate; 11. an upper section of the column A; 12. the lower section of the column A; 2. a roof rail; 3. Reinforcing the patch board; 4. a front threshold; 5. a B-pillar body panel; 51. the upper section of the column B; 52. the lower section of the column B; 6. A rear threshold; 7. a first soft zone;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the present invention discloses an embodiment of a B-pillar of an automobile, which comprises a B-pillar main body plate 5 and a reinforced patch panel 3 formed by stamping a local reinforced area on the B-pillar main body plate 5 and integrally forming the B-pillar main body plate 5.

The B-pillar main body plate 5 comprises a rigid B-pillar upper section 51 and a soft B-pillar lower section 52, the upper end of the B-pillar upper section 51 is fixedly connected with an A-pillar of an automobile, the lower end of the B-pillar upper section 51 is fixedly connected with the upper end of the B-pillar lower section 52, the front side and the rear side of the lower portion of the B-pillar lower section 52 are respectively fixedly connected with a front threshold 4 and a rear threshold 6, and the reinforcing patch plate 3 is integrally formed with the B-pillar upper section 51 through a local reinforcing area pressed on the B-pillar upper section 51.

As a further alternative of the above embodiment, the B-pillar upper section 51, the reinforcing patch panel 3 thereon, and the B-pillar lower section 52 are integrally formed by pressing after being fixedly connected. The plate material for manufacturing the upper section 51 and the lower section 52 of the B column and the reinforcing patch plate 3 are fixed by welding to form a blank of the B column, and the blank of the B column is heated to 930 ℃ and then placed in a stamping die to be stamped once so that the upper section 51 of the B column, the reinforcing patch plate 3 thereon and the lower section 52 of the B column are integrally formed.

The local reinforcing region of the B-pillar upper section 51 is a middle section of the B-pillar upper section 51, and the reinforcing patch plate 3 is punched on the middle section of the B-pillar upper section 51 to reinforce the strength of the B-pillar upper section 51

As a further solution of the above embodiment, the B-pillar lower section 52 is in an inverted "T" shape, and the protruding end portions of the lower portion of the B-pillar lower section 52 at the front and rear sides are respectively used for being fixedly connected with the front threshold 4 and the rear threshold 6.

As a further scheme of the above embodiment, the included angle between the horizontal section and the vertical section of the lower section 52 of the B column is in a cambered surface transition.

Specifically, the yield strength of the upper section 51 of the column B is any value of 950-1300 MPa, the tensile strength is any value of 1300-1650 MPa, the tensile test A80 is more than or equal to 4.5%, and the hardness is any value of 400-520 HV.

As a further solution of the above embodiment, the reinforcing patch panel 3 and the B-pillar upper section 51 may be made of the same material, and may be made of the Usibor1500 material.

Specifically, the yield strength of the lower section 52 of the column B is any value of 400-550 MPa, the tensile strength is any value of 600-800 MPa, the tensile test A80 is more than or equal to 10%, the hardness is any value of 160-235 HV, and Ductibor450 or Ductibor500 materials can be selected.

As shown in fig. 1 and 2, the utility model discloses an embodiment of front door ring, including car A post, preceding threshold 4, back threshold 6 and foretell car B post, car A post, car B post, preceding threshold 4 and back threshold 6 are connected and are formed front door ring.

The automobile A column comprises an A column main body plate 1 and a reinforcing patch plate 3, the reinforcing patch plate 3 is identical to the reinforcing patch plate 3 on a B column upper section 51, the reinforcing patch plate 3 is integrally formed with the A column main body plate 1 through a local reinforcing area pressed on the A column main body plate 1 in a punching mode, an area, used for being welded with a roof cross beam 2, of the A column main body plate 1 is a first soft area 7, the shape of the A column main body plate 1 can be identical to that of an upper half portion of a bow, and the upper end of the B column upper section 51 is fixedly connected with the A column main body plate 1.

As a further solution of the above embodiment, the a-pillar main body panel 1 includes an a-pillar upper section 11 and an a-pillar lower section 12, a lower end of the a-pillar upper section 11 is fixedly connected to an upper end of the a-pillar lower section 12, both a middle section of the a-pillar upper section 11 and a middle section of the a-pillar lower section 12 have local reinforced areas, both the a-pillar upper section 11 and the a-pillar lower section 12 have the reinforced patch panel 3 stamped thereon, and an upper end of the B-pillar upper section 51 is fixedly connected to the a-pillar upper section 11.

Specifically, the yield strength of the first soft zone 7 is any value of 600-750 MPa, the tensile strength is any value of 800-950 MPa, the tensile test A80 is more than or equal to 6%, and the hardness is any value of 160-300 HV.

The yield strength of the upper section 11 of the column A and the part of the lower section 12 of the column A except the first soft zone 7 is any value of 950-1300 MPa, the tensile strength is any value of 1300-1650 MPa, the tensile test A80 is more than or equal to 4.5%, the hardness is any value of 400-520 HV, the same materials as the upper section 51 of the column B can be selected, and the performances are the same.

The upper section 11 of the A column, the lower section 12 of the A column, the front doorsill 4 and the rear doorsill 6 can be made of Usibor1500 materials, the upper section 51 of the B column, the upper section 11 of the A column, the lower section 12 of the A column, the reinforcing patch plate 3, the front doorsill 4 and the rear doorsill 6 are made of the same materials, the performances are the same, and the utilization rate of the materials can be improved.

As a further aspect of the above embodiment, the plate material for manufacturing the a-pillar upper section 11, the a-pillar lower section 12, the B-pillar upper section 51, the B-pillar lower section 52, the front rocker 4, and the rear rocker 6 is fixed by laser spot welding and then integrally formed by pressing.

The reinforcement patch panel 3 is respectively welded at corresponding positions by spot welding before the a pillar upper section 11, the a pillar lower section 12, the B pillar upper section 51, the B pillar lower section 52, the front doorsill 4 and the rear doorsill 6 are integrally formed by punching, and then the reinforcement patch panel 3 is formed by one-time punch forming together with the a pillar upper section 11, the a pillar lower section 12, the B pillar upper section 51, the B pillar lower section 52, the front doorsill 4 and the rear doorsill 6. The automobile body reinforcing structure is convenient to produce, can ensure enough strength in an area needing to be reinforced, is light in weight and is beneficial to reducing the weight of the automobile body.

When collision happens, the lower section 52 of the B column absorbs energy and contracts, the lower end of the A column of the automobile rotates, the upper part of the front door ring can be prevented from deforming and extruding the heads of drivers and passengers, and meanwhile, the front door ring can be prevented from being turned over when all high-strength rigid plates are adopted.

The utility model provides a scheme, reducible cold stamping reinforcement that is used for strengthening car A post and car B post must uses the patch to strengthen the intensity that the plate guaranteed car A post and car B post, and production is convenient, and is efficient, with low costs, and light and safety more. When collision happens, the welding part of the automobile A column and the roof beam 2 is not easy to break, and the B column lower section 52 is a soft energy absorption area, the B column lower section 52 shrinks and absorbs energy, the lower end of the automobile A column rotates backwards, the space on the upper part of a front door ring can be kept, the head of a driver and a passenger is prevented from being injured by compressing and extruding the head of the driver and the passenger on the upper part of the front door ring, in addition, the B column lower section 52 shrinks and absorbs energy, the buffering effect can be achieved, the impact on the driver and the passenger in the automobile is reduced, and the phenomenon that the automobile body is turned over.

The utility model discloses an embodiment of car, including above-mentioned car B post.

In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and encompass, for example, a fixed connection, a removable connection, or an integral connection, either directly or indirectly through intervening media. The specific meaning of the above terms in the utility model can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", 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 simplification of description, and do not indicate or imply that the device or unit referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a 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

1. An automobile B-pillar, characterized in that: the automobile pillar comprises a rigid B pillar upper section (51), a soft B pillar lower section (52) and a reinforcing patch plate (3), wherein the upper end of the B pillar upper section (51) is fixedly connected with an automobile A pillar, the lower end of the B pillar upper section (51) is fixedly connected with the upper end of the B pillar lower section (52), the front side and the rear side of the lower portion of the B pillar lower section (52) are respectively fixedly connected with a front doorsill (4) and a rear doorsill (6), and the reinforcing patch plate (3) is integrally formed with the B pillar upper section (51) through a local reinforcing area stamped on the B pillar upper section (51).

2. The automotive B-pillar of claim 1, wherein: the B column upper section (51), the reinforcing patch plate (3) on the B column upper section and the B column lower section (52) are fixedly connected and then integrally formed through punching.

3. The automotive B-pillar of claim 1, wherein: the lower section (52) of the B column is in an inverted T shape, and the protruding end parts of the front side and the rear side of the lower part of the lower section (52) of the B column are respectively used for being fixedly connected with the front doorsill (4) and the rear doorsill (6).

4. The automotive B-pillar of claim 3, wherein: the included angle between the horizontal section and the vertical section of the lower section (52) of the B column is in arc surface transition.

5. The B-pillar of an automobile according to any one of claims 1-4, wherein: the yield strength of the upper section (51) of the column B is 950-1300 MPa, the tensile strength is 1300-1650 MPa, the tensile test A80 is more than or equal to 4.5%, and the hardness is 400-520 HV.

6. The automotive B-pillar of claim 5, wherein: the reinforcing patch plate (3) is made of the same material as the B-pillar upper section (51).

7. The B-pillar of an automobile according to any one of claims 1-4, wherein: the yield strength of the lower section (52) of the column B is 400-550 MPa, the tensile strength is 600-800 MPa, the tensile test A80 is more than or equal to 10%, and the hardness is 160-235 HV.

8. A front door ring, characterized by: comprising an automotive B-pillar according to any one of claims 1-7.

9. An automobile, characterized in that: comprising an automotive B-pillar according to any one of claims 1-7.