CN213892664U

CN213892664U - B-pillar assembly of vehicle body framework and vehicle

Info

Publication number: CN213892664U
Application number: CN202021210104.2U
Authority: CN
Inventors: 曹雯雯; 俞建魁; 李海峰; 李岩; 付圆宁
Original assignee: Baoneng Xian Automobile Research Institute Co Ltd
Current assignee: Shenzhen Shengbo Hairui Management Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-08-06
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a B post assembly and vehicle of automobile body skeleton, B post assembly includes: the connecting structure comprises a body, wherein a first connecting part is arranged at the upper end of the body, a second connecting part is arranged at the lower end of the body, and the body is provided with an easily-bent area; the reinforcing rib, the reinforcing rib set up in on the body, the reinforcing rib has the reinforcing district, the reinforcing district with the district is corresponding easily buckled. According to the utility model discloses automobile body skeleton's B post assembly is through addding the strengthening rib in the easily bendable district of body to effectively strengthen the structural strength in the easily bendable district, avoid easily bending district side to bump the in-process and take place deformation, and then improve automobile body skeleton's the resistant nature of hitting and the personal safety of personnel in the car.

Description

B-pillar assembly of vehicle body framework and vehicle

Technical Field

The utility model relates to the field of automotive technology, in particular to B post assembly and vehicle of automobile body skeleton.

Background

Along with social development, the popularity of automobiles is higher and higher, the traffic accident rate is increased year after year, the safety problem of the automobiles is more and more emphasized, and the judgment standard of the regulations is more and more strict. In the side impact test, the B-pillar pliable region generally corresponds to the driver's chest position, and since the distance between the driver and the door is small, the side impact of the vehicle body is more dangerous to the driver.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a B post assembly of automobile body skeleton, this B post assembly's resistant strong that hits can improve automobile body skeleton's structural stability, improves personnel's in the car personal safety.

Another object of the present invention is to provide a vehicle, including the B-pillar assembly of the vehicle body frame having the above advantages.

According to the utility model discloses automobile body frame's B post assembly, wherein, automobile body frame encloses roof beam and side wall boundary beam under including the side of relative setting from top to bottom, B post assembly connect in the side enclose the roof beam with between the side wall boundary beam, B post assembly includes: the connecting structure comprises a body, wherein a first connecting part is arranged at the upper end of the body, a second connecting part is arranged at the lower end of the body, and the body is provided with an easily-bent area; the reinforcing rib, the reinforcing rib set up in on the body, the reinforcing rib has the reinforcing district, the reinforcing district with the district is corresponding easily buckled.

According to the utility model discloses automobile body skeleton's B post assembly is through addding the strengthening rib in the easily bendable district of body to effectively strengthen the structural strength in the easily bendable district, avoid easily bending district side to bump the in-process and take place deformation, and then improve automobile body skeleton's the resistant nature of hitting and the personal safety of personnel in the car.

In addition, according to the utility model discloses the B post assembly of automobile body skeleton of above-mentioned embodiment can also have following additional technical characterstic:

in some embodiments, the reinforcing bars extend upwardly and downwardly from the reinforcing section, respectively, and the reinforcing section has a thickness greater than the upwardly and downwardly extending portions of the reinforcing bars.

In an alternative embodiment, the upwardly extending portion of the reinforcing bar is in accordance with the variation in thickness of the downwardly extending portion of the reinforcing bar.

In a further alternative example, the thickness of the ribs is between 1.6 mm and 2.8 mm.

In a further alternative example, the thickness of the reinforcing region is between 2 mm and 2.6 mm, and the length of the reinforcing region is between 100 mm and 220 mm.

In a further alternative example, the thickness of the reinforcing region is 2.4 mm and the length of the reinforcing region is 200 mm.

In an alternative embodiment, the upwardly extending portion of the reinforcing bar and the downwardly extending portion of the reinforcing bar each comprise a plurality of sections, adjacent sections being located immediately adjacent to each other.

In a further alternative example, the upwardly extending portions of the ribs have a decreasing trend and smooth transition upwardly from the reinforced region, and the downwardly extending portions of the ribs have a decreasing trend and smooth transition downwardly from the reinforced region.

In a further alternative example, the reinforcing rib is an integrally formed part and is formed on the body by a flexible differential thickness rolling technology.

According to the utility model discloses the vehicle includes the B post assembly of above-mentioned embodiment, because according to the utility model discloses the B post assembly of automobile body skeleton can improve automobile body skeleton's resistant crashworthiness and the personal safety of personnel in the car. Therefore, according to the utility model discloses the crashworthiness of vehicle is strong, can guarantee personnel's in the car personal safety.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic B-pillar assembly structure of a vehicle body frame according to some embodiments of the present invention;

FIG. 2 is a schematic view of a side impact deformation structure of a B-pillar assembly of a vehicle body frame after modification;

FIG. 3 is a schematic structural view of a B-pillar assembly of a vehicle body frame prior to modification;

FIG. 4 is a schematic side impact configuration of a B-pillar assembly of a vehicle body frame prior to modification;

reference numerals:

a B-pillar assembly 100;

a body 10; a first connection portion 11; a second connecting portion 12; a pliable region 13;

a reinforcing rib 20; an enhancement region 21; an upwardly extending portion 22; a downward extending portion 23;

a pre-modified B-pillar assembly 200; the frangible region 201 before modification.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following describes the B-pillar assembly 100 of the vehicle body frame according to an embodiment of the present invention in detail with reference to fig. 1 to 2. The automobile body frame comprises a side wall upper edge beam and a side wall lower edge beam which are oppositely arranged from top to bottom, and the B column assembly 100 is connected between the side wall upper edge beam and the side wall lower edge beam.

Specifically, as shown in fig. 1 and 2, the B-pillar assembly 100 includes a body 10 and a reinforcing rib 20 disposed on the body 10, wherein a first connecting portion 11 is disposed at an upper end of the body 10, and a second connecting portion 12 is disposed at a lower end of the body 10. Namely, the first connecting part 11 is connected with the upper side edge beam of the side wall, and the second connecting part 12 is connected with the lower side edge beam of the side wall. That is, the B-pillar assembly 100 is connected to the vehicle body frame through the first connection portion 11 and the second connection portion 12, wherein the connection manner may be at least one of welding, riveting, joggling, or clamping.

It will be appreciated by those skilled in the art that the B-pillar assembly (100, 200) is generally of equal thickness, and that the buckling-prone region 201 of the B-pillar assembly 200 before modification is susceptible to large deformation in the event of a side impact, as shown in fig. 3 in conjunction with fig. 4. Referring to fig. 1 and 2, the body 10 of the B-pillar assembly 100 of the present application is provided with the reinforcing rib 20, and the reinforcing region 21 of the reinforcing rib 20 is covered on the easily bendable region 13, thereby improving the structural strength of the B-pillar assembly 100.

It should be noted that, in the present application, the "flexible region (13, 201)" refers to a region which is easily deformed in a side impact test, and the flexible region (13, 201) is approximately at the same height as the height of the chest of the dummy used in the test. Therefore, it is important to improve the structure of the flexible region 13 of the body 10 to improve the crashworthiness. The reinforcing ribs 20 are additionally arranged on the easily bendable region 13 of the body 10, so that the structural strength of the easily bendable region 13 is effectively enhanced, and the easily bendable region 13 is prevented from deforming in the side collision process.

Wherein, the reinforcing rib 20 may be disposed on the outer side surface of the body 10. The term "inner" and "outer" refers to the interior and exterior of the vehicle, with the side facing the vehicle interior being the inner side and the side facing away from the vehicle interior being the outer side.

In addition, the vehicle body frame generally includes two B-pillar assemblies 100 disposed to face each other in the left-right direction, and reinforcing ribs 20 may be added to the main bodies 10 of the B-pillar assemblies on both sides of the vehicle body frame in order to improve the structural strength and the crash resistance of the vehicle body frame as a whole.

In short, according to the utility model discloses automobile body frame's B post assembly 100 adds strengthening rib 20 through the easy bending district 13 at body 10 to effectively strengthen the structural strength of easy bending district 13, avoid easy bending district 13 side impact in-process to take place deformation, and then improve automobile body frame's crashworthiness and interior personnel's personal safety.

In some embodiments of the present invention, the reinforcing bars 20 extend upwardly and downwardly from the reinforcing section 21, respectively, and the thickness of the reinforcing section 21 is greater than the upwardly extending portion 22 and the downwardly extending portion 23 of the reinforcing bars 20. That is to say, the material thickness of the position of the reinforced area 21 is large, the material thickness of the upward extending part 22 located on the upper side of the reinforced area 21 and the material thickness of the downward extending part 23 located on the lower side of the reinforced area 21 are small, that is, different parts of the body 10 of the reinforcing rib 20 are subjected to material thickness differentiation treatment, the easily deformable area 13 subjected to external force impact is specially reinforced, the easily deformable area 13 subjected to external force impact is generally reinforced by the upper extending part 22 and the lower extending part 23 which are not easily deformed by external force impact, so that the structural strength of the easily deformable area 13 is sufficiently reinforced, the easily deformable area 13 can be assisted by the upper extending part 22 and the lower extending part 23, the structural strength of the easily deformable area 13 is further reinforced, the easily deformable area 13 is prevented from being deformed in the side impact process, and the collision resistance of the vehicle body framework and the personal safety of the vehicle interior personnel are further improved.

In an alternative embodiment, the upwardly extending portions 22 of the ribs 20 correspond to the thickness variation of the downwardly extending portions 23 of the ribs 20. That is, the upper and lower sides of the pliable region 13 tend to have uniform structural strength, whereby the impact resistance of the body 10 can be further improved, and the integrity of the vehicle body structure and the safety of the occupant can be ensured against the impact of an external force.

In an alternative example, the thickness of the ribs 20 is between 1.6 mm and 2.8 mm. For example, the thickness of the reinforcing bead 20 may be 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, and 2.8 mm.

In some alternative examples, the inventors have discovered during their research that optimal selection of the thickness and length of the reinforcing region 21 has a direct effect on the structural strength of the pliable region 13. Through multiple side impact tests, the thickness of the reinforcing area 21 is set to be between 2 millimeters and 2.6 millimeters, the length of the reinforcing area 21 is set to be between 100 millimeters and 220 millimeters, and the flexible area 13 of the body 10 is not easy to deform in the side impact test process, so that the vibration resistance of the whole B column assembly 100 is improved, and the safety of a person in a vehicle is effectively protected. For example, the thickness of the reinforcement region 21 may be 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, and 2.6 mm, and accordingly, the length of the reinforcement region 21 may be 100 mm, 110 mm, 120 mm, 130 mm, 140 mm, 150 mm, 160 mm, 170 mm, 180 mm, 190 mm, 200 mm, 210 mm, and 220 mm.

In a specific embodiment, the thickness of the reinforcing region 21 is 2.4 mm, and the length of the reinforcing region 21 is 200 mm. In the embodiment, the total weight of the B column assembly 100 is increased by only 110 g, the requirement of light weight of the vehicle is met, the living space is increased to 145mm from the original 57.6mm, and the personal safety in the vehicle is effectively protected.

In other alternative examples of the invention, as shown in fig. 1 and 2, the upwardly extending portion 22 of the reinforcing bar 20 and the downwardly extending portion 23 of the reinforcing bar 20 each comprise a plurality of segments, with adjacent segments being positioned adjacent to one another. That is, the reinforcing region 21, the upwardly extending portion 22 and the downwardly extending portion 23 each comprise separate segments, each of which may be independently formed on the body 10, each of which has a different thickness.

In a further alternative example, the upward extending portions of the ribs 20 have a decreasing trend and a smooth transition from the reinforcing region 21 upward, and the downward extending portions of the ribs 20 have a decreasing trend and a smooth transition from the reinforcing region 21 downward. For example, as shown in fig. 1 and 2, the reinforcing bar 20 has seven segments and the thickness of the reinforcing region 21 located at the center of the reinforcing bar 20 is set to 2.4 mm, the segments adjacent to the reinforcing region 21 in the upward extension 22 and the downward extension 23 may smoothly transition to 2.3 mm, and the remaining segments may smoothly transition to 2.2 mm and 2.1 mm. Alternatively, the thickness of the sections of the upwardly extending portion 22 and the downwardly extending portion 23 adjacent to the reinforced region 21 may smoothly transition to 2.2 mm, and the remaining sections may smoothly transition to 2.0 mm and 1.8 mm. It will be appreciated that the above description is merely illustrative and not intended to limit the scope of the present invention, and that the thickness of the individual segments of the reinforcing bars 20 may vary in a non-uniform manner, as long as the thickness of the reinforcing bars 20 remains decreasing from the upper or lower portion of the reinforcing section 21.

In some optional embodiments of the present invention, the reinforcing rib 20 is an integrally formed part formed on the body 10 by a flexible differential thickness rolling technique. I.e. the reinforcing regions 21 of the reinforcing bars 20, the upwardly extending portions 22 of the reinforcing bars 20 and the downwardly extending portions 23 of the reinforcing bars 20 are integrally formed. Therefore, the production and manufacturing process of the B-pillar assembly 100 can be simplified, and the production cost can be reduced.

According to the utility model discloses the vehicle includes the B post assembly 100 of above-mentioned embodiment, because according to the utility model discloses the B post assembly 100 of automobile body skeleton can improve automobile body skeleton's resistant crashworthiness and the personal safety of personnel in the car. Therefore, according to the utility model discloses the crashworthiness of vehicle is strong, can guarantee personnel's in the car personal safety.

Other components and structures of the vehicle according to the embodiments of the present invention are easily understood and obtained by those skilled in the art, and are not described herein.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", 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, but do not indicate or imply that the device or element 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.

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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a B post assembly of automobile body skeleton, automobile body skeleton includes that the side that relative up-down set up encloses roof beam and side wall boundary beam down, B post assembly connect in the side enclose the roof beam with between the boundary beam down, its characterized in that, B post assembly includes:

the connecting structure comprises a body, wherein a first connecting part is arranged at the upper end of the body, a second connecting part is arranged at the lower end of the body, and the body is provided with an easily-bent area;

the reinforcing rib, the reinforcing rib set up in on the body, the reinforcing rib has the reinforcing district, the reinforcing district with the district is corresponding easily buckled.

2. The B-pillar assembly of a vehicle body frame of claim 1 wherein said reinforcing bead extends upwardly and downwardly from said reinforcement region, respectively, said reinforcement region having a thickness greater than said reinforcing bead upwardly and downwardly extending portions.

3. The B-pillar assembly of a vehicle body frame of claim 2 wherein the bead up-extending portion is in accordance with a change in thickness of the bead down-extending portion.

4. The B-pillar assembly of a vehicle body frame of claim 3, wherein the thickness of the bead is between 1.6 mm and 2.8 mm.

5. The B-pillar assembly of a vehicle body frame of claim 4 wherein the thickness of the reinforcement region is between 2 mm and 2.6 mm and the length of the reinforcement region is between 100 mm and 220 mm.

6. The B-pillar assembly of a vehicle body frame of claim 5, wherein the reinforcement region has a thickness of 2.4 millimeters and a length of 200 millimeters.

7. The B-pillar assembly of a vehicle body frame of claim 3 wherein said bead up-extending portion and said bead down-extending portion each comprise a plurality of segments, adjacent segments being disposed adjacent one another.

8. The B-pillar assembly of a vehicle body frame of claim 7 wherein said rib upward extension is tapered and smoothly transitioned upward from said reinforced zone and said rib downward extension is tapered and smoothly transitioned downward from said reinforced zone.

9. The B-pillar assembly of a vehicle body frame of claim 7 wherein said reinforcement is an integrally formed part formed on said body by a differential flexibility rolling technique.

10. A vehicle characterized by a B-pillar assembly including the body frame of any one of claims 1-9.