Vehicle body structure and vehicle

Abstract

The application provides a vehicle body structure and a vehicle. The vehicle body structure comprises a rocker beam and an A-pillar connected to the rocker beam. The A-pillar comprises an A-pillar body and a connecting piece connected to the bottom of the A-pillar body. The connecting piece is located on one side of the A-pillar body along the left-right direction of the vehicle, and an installation groove is formed between the connecting piece and the A-pillar body. The rocker beam is located in the installation groove and is connected to the A-pillar body and the connecting piece. The vehicle body structure can increase the connection performance between the root of the A-pillar and the rocker beam by forming an installation groove at the bottom end of the A-pillar and locating the rocker beam in the installation groove, thereby improving the collision safety of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a vehicle body structure. BACKGROUND

[0002] In the related art, the root of the A-pillar in the vehicle body is generally connected to the rocker beam, and the upper part of the A-pillar is connected to the roof side rail at the top of the vehicle body, in addition to being connected to the front wheel cover side rail and the front cross beam, to form a coherent vehicle body side frame structure.

[0003] Among them, for the connection between the root of the A-pillar and the rocker beam, the bottom end of the A-pillar is generally butt-jointed to the rocker beam by welding in the prior art. Although this connection method can achieve the connection between the A-pillar and the rocker beam, it also has the problem that the connection rigidity of the root of the A-pillar is weak, and the connection of the root of the A-pillar is prone to failure in vehicle collision, which causes the collision transmission channel between the A-pillar and the rocker beam to be interrupted, and is not conducive to improving the safety of the vehicle in collision. SUMMARY

[0004] Therefore, the present application aims to provide a vehicle body structure to improve the safety of the vehicle in collision.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] A vehicle body structure, comprising a rocker beam, and an A-pillar connected to the rocker beam at the root;

[0007] The A-pillar comprises an A-pillar body and a connecting piece connected to the bottom of the A-pillar body, the connecting piece is located on one side of the A-pillar body along the left-right direction of the vehicle, and an installation groove is formed between the connecting piece and the A-pillar body;

[0008] The rocker beam is located in the installation groove and is connected together with the A-pillar body and the connecting piece.

[0009] Further, the connecting piece is integrally formed, and the connecting piece has a body connecting portion, an intermediate connecting portion and a rocker connecting portion connected in sequence from top to bottom;

[0010] The body connecting portion is lap-jointed and fixed to the A-pillar body, the rocker connecting portion forms the installation groove together with the bottom end of the A-pillar body, and the rocker connecting portion is lap-jointed and fixed to the rocker beam.

[0011] Further, the intermediate connecting portion is lap-jointed and fixed to the top of the rocker beam; and / or,

[0012] The body connecting portion is lap-jointed and fixed to the A-pillar body, the rocker connecting portion forms the installation groove together with the bottom end of the A-pillar body, and the rocker connecting portion is lap-jointed and fixed to the rocker beam.

[0013] Further, the connecting piece is located on the side of the A-pillar body towards the vehicle interior, and the rocker connecting part is provided with a connecting boss connected with the front floor cross beam.

[0014] Further, a connecting groove is formed on the connecting boss, and the end part of the front floor cross beam is embedded in the connecting groove; and / or,

[0015] The rocker connecting part is provided with a reinforcing rib connected with the connecting boss.

[0016] Further, the connecting piece is integrally formed by aluminum alloy; and / or,

[0017] The body connecting part and the A-pillar body, and the rocker connecting part and the rocker beam are connected by rivets.

[0018] Further, the A-pillar body comprises an A-pillar inner plate and an A-pillar reinforcing plate connected together, and an A-pillar lower section reinforcing piece is arranged in the space formed by the A-pillar inner plate and the A-pillar reinforcing plate;

[0019] The bottom of the A-pillar lower section reinforcing piece is arranged in connection with the rocker beam in the left-right direction of the vehicle, and the bottom of the A-pillar lower section reinforcing piece is connected with the rocker beam.

[0020] Further, the A-pillar inner plate and the A-pillar reinforcing plate are made of carbon fiber composite material, and / or the A-pillar lower section reinforcing piece is made of aluminum profile.

[0021] Further, the A-pillar lower section reinforcing piece, the A-pillar body, and the upper part of the connecting piece are connected together by a first connecting piece; and / or,

[0022] The front side of the A-pillar is provided with a front wall lower cross beam, and the A-pillar lower section reinforcing piece, the A-pillar body, the connecting piece, and the front wall lower cross beam are connected together by a second connecting piece.

[0023] Compared with the prior art, the present application has the following advantages:

[0024] The vehicle body structure disclosed by the present application sets a connecting piece on one side of the A-pillar root, so that a mounting groove is formed between the connecting piece and the A-pillar body, and the rocker beam is located in the mounting groove and connected with the A-pillar body and the connecting piece, thereby the A-pillar body and the connecting piece can tightly hold the rocker beam from both sides, and the connection between the A-pillar body and the connecting piece and the rocker beam increases the connection stiffness between the A-pillar root and the rocker beam, and the collision force transmission capacity between the A-pillar and the rocker beam, thereby the vehicle collision safety is improved.

[0025] In addition, the connecting piece is integrally formed, and the connecting piece is provided with a column connecting portion connected with the column of the vehicle body, and a sill connecting portion connected with the sill beam, so that the structure strength of the connecting piece can be ensured by the integrally formed manner, and the mounting groove can be integrally formed with the A column body, the middle connecting portion is overlapped and fixed on the top of the sill beam, and the connecting strength between the connecting piece and the sill beam can be increased, the mounting groove is formed in the body connecting portion, the A column portion is embedded in the mounting groove, the connection between the connecting piece and the A column can be facilitated, and the reliability of the connection between the connecting piece and the A column can be increased.

[0026] Secondly, the connecting boss is arranged on the sill connecting portion, the connection with the front floor cross beam can be facilitated, and the reliability of the connection between the connecting piece and the front floor cross beam can be increased, the connecting groove is arranged on the connecting boss, the connection operation between the front floor cross beam and the connecting piece can be further facilitated, and the reliability of the connection between the front floor cross beam and the connecting piece can be increased, and the structure strength of the position of the connecting boss can be increased by arranging the reinforcing rib connected with the connecting boss, so that the stability of the connection of the front floor cross beam on the connecting boss can be better ensured.

[0027] The connecting piece is integrally formed by aluminum alloy, the preparation of the connecting piece can be facilitated, the characteristics of low weight and high strength of the aluminum structure can be utilized, the lightweight of the connecting piece can be facilitated, and the structure strength of the connecting piece itself can be ensured, the body connecting portion and the A column body are connected by the rivet, the sill connecting portion and the middle connecting portion and the sill beam are connected by the rivet, the connection effect can be ensured, the connection operation can be facilitated, and the connection cost can be reduced.

[0028] In addition, the A column comprises the A column inner plate and the A column reinforcing plate buckled together, and the A column lower section reinforcing piece is arranged in the A column, and the bottom of the A column lower section reinforcing piece is connected with the sill beam, so that the rigidity of the lower part of the A column and the connecting rigidity between the A column and the sill beam can be further increased, the A column inner plate and the A column reinforcing plate are made of carbon fiber composite material, the lightweight design and the modeling design of the A column itself can be facilitated, and the structure strength of the A column can be ensured, and the A column lower section reinforcing piece is made of aluminum profile, the weight of the A column lower section reinforcing piece can be reduced, and the structure strength of the A column lower section reinforcing piece can be ensured.

[0029] The A column lower section reinforcing piece, the A column body and the upper part of the connecting piece are connected together, the overall rigidity of the root of the A column can be increased, the structure stability of the formed mounting groove can be increased, and the connection reliability between the A column and the sill beam can be ensured, the A column lower section reinforcing piece, the A column body, the connecting piece and the front wall lower cross beam are connected together, the connection reliability between the A column and the front wall lower cross beam can be increased, the stability of the arrangement of the front wall lower cross beam in the vehicle body can be improved, and the transmission effect of the collision force between the A column and the front wall lower cross beam can be improved.

[0030] Another object of the present invention is to provide a vehicle having the body structure described above.

[0031] The vehicle described in this invention has the same beneficial effects as the aforementioned vehicle body structure, and will not be repeated here. Attached Figure Description

[0032] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0033] Figure 1 This is a schematic diagram of the vehicle body structure described in an embodiment of the present invention;

[0034] Figure 2 for Figure 1 A magnified view of a specific area;

[0035] Figure 3 for Figure 1 Schematic diagrams of the structure shown from other perspectives;

[0036] Figure 4 This is a schematic diagram illustrating the structure of the mounting groove according to an embodiment of the present invention;

[0037] Figure 5 This is a schematic diagram of the connector structure according to an embodiment of the present invention;

[0038] Figure 6 for Figure 5 Schematic diagrams of the structure shown from other perspectives;

[0039] Figure 7 for Figure 5 Schematic diagrams of the structure shown from other perspectives;

[0040] Figure 8 This is a schematic diagram illustrating the structure of the A-pillar body according to an embodiment of the present invention;

[0041] Figure 9 This is a schematic diagram illustrating the arrangement of the lower section reinforcement of the A-pillar according to an embodiment of the present invention;

[0042] Figure 10 This is a schematic diagram of the structure of the lower section reinforcement of the A-pillar according to an embodiment of the present invention;

[0043] Figure 11 This is a schematic diagram illustrating the connection between the lower front crossbeam and the A-pillar according to an embodiment of the present invention;

[0044] Explanation of reference numerals in the attached figures:

[0045] 1. Door sill beam; 2. A-pillar; 3. Front floor crossbeam; 4. Rivets; 5. Lower front crossbeam;

[0046] 21, A pillar body; 211, A pillar inner plate; 212, A pillar reinforcement plate; 21a, through hole; 22, connecting piece; 221, upright connecting portion; 2211, connecting flange; 2212, connecting via; 222, rocker connecting portion; 223, intermediate connecting portion; 224, connecting boss; 224a, connecting groove; 225, reinforcing rib; 22a, accommodating groove; 23, A pillar lower section reinforcement;

[0047] M, inner side material-removing area; N, outer side material-removing area; G, part of A pillar embedded in accommodating groove; k, mounting groove. DETAILED DESCRIPTION

[0048] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0049] In the description of the present application, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer" and the like appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, if terms such as "first", "second" and the like appear, they are also only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0050] In addition, in the description of the present application, unless otherwise explicitly limited, the terms "mounting", "connecting", "connection", "connecting piece" should be understood broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood in combination with the specific circumstances.

[0051] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0052] Embodiment One

[0053] The present embodiment relates to a vehicle body structure which can increase the connecting stiffness between the root of A pillar 2 and rocker beam 1, can increase the collision force transmission capability between A pillar 2 and rocker beam, and is beneficial to improving the collision safety of the whole vehicle.

[0054] Overall structure, in combination with Figures 1 to 4 shown in the present embodiment, the vehicle body structure includes a rocker beam 1, and an A pillar 2 connected to the rocker beam 1 at the root.

[0055] The A-pillar 2 comprises an A-pillar body 21 and a connecting piece 22 connected to the bottom of the A-pillar body 21. The connecting piece 22 is located at the inner side of the A-pillar body 21 in the left-right direction of the vehicle, that is, the side of the A-pillar body 21 facing the interior of the vehicle. Meanwhile, the connecting piece 22 and the A-pillar body 21 are arranged to form a mounting groove k, and the rocker beam 1 is located in the mounting groove k and connected to the A-pillar body 21 and the connecting piece 22.

[0056] At this time, as arranged above, the connecting piece 22 and the A-pillar body 21 are arranged to form the mounting groove k, and the rocker beam 1 is located in the mounting groove k and connected to the A-pillar body 21 and the connecting piece 22. In this embodiment, the A-pillar body 21 and the connecting piece 22 are used to tightly hold the rocker beam 1 from both sides, and the connection between the A-pillar body 21, the connecting piece 22 and the rocker beam 1 can increase the connection stiffness between the root of the A-pillar 2 and the rocker beam 1, thereby achieving the effect of increasing the collision force transmission capacity between the A-pillar 2 and the rocker beam 1.

[0057] Based on the above overall introduction, specifically, still referring to the A-pillar body 21 and the connecting piece 22 shown in Figure 4 The mounting groove k formed by the A-pillar body 21 and the connecting piece 22 is a groove structure with open front, rear and bottom sides at the bottom end of the A-pillar 2. In specific implementation, the rocker beam 1 is generally first connected and fixed to the inner side of the A-pillar body 21, then the connecting piece 22 is fixed to the A-pillar body 21, and finally the connecting piece 22 is connected and fixed to the rocker beam 1, thereby forming the mounting groove k in which the rocker beam 1 is tightly held.

[0058] Of course, in addition to the above forming method, other preparation procedures can also be used to form the above mounting groove k and arrange the rocker beam 1 in the mounting groove k. It should also be pointed out that in addition to the preferred arrangement of the connecting piece 22 at the inner side of the A-pillar body 21, in specific implementation, according to design needs, the connecting piece 22 can also be arranged at the outer side of the A-pillar body 21 in the left-right direction of the vehicle, that is, the side of the A-pillar body 21 facing the exterior of the vehicle.

[0059] In this embodiment, as shown in Figures 5 to 7 As a preferred implementation form, the connecting piece 22 is integrally formed and has a body connecting portion 221, an intermediate connecting portion 223 and a rocker connecting portion 222 connected in sequence from top to bottom. The body connecting portion 221 is lap-connected and fixed to the A-pillar body 21, the rocker connecting portion 222 is arranged with the bottom end of the A-pillar body 21 to form the mounting groove k, and the rocker connecting portion 222 is lap-connected and fixed to the rocker beam 1.

[0060] At this time, the connecting piece 22 is stepped and has a body connecting portion 221 connected with the A-pillar body 21 and a sill connecting portion 222 connected with the sill beam 1. The connecting piece 22 not only can ensure the structural strength of the connecting piece 22 itself by the one-piece forming mode, but also can further increase the overall rigidity of the A-pillar 2 root by the connection between the connecting piece 22 and the A-pillar body 21 root and the sill beam 1, so as to improve the collision force transmission capacity between the A-pillar 2 and the sill beam 1.

[0061] As a preferred implementation form, as shown in Figure 2 , the intermediate connecting portion 223 can be fixed on the top of the sill beam 1 in the embodiment. In this way, the intermediate connecting portion 223 fixed on the top of the sill beam 1 can not only increase the connection strength between the connecting piece 22 and the sill beam 1, but also help to improve the stability of the sill beam 1 arranged in the installation groove k and the connection between the vehicle body side structure composed of the connecting piece 22 and the sill beam 1 and the vehicle body beam structure such as the front floor cross beam 3.

[0062] The embodiment still refers to Figure 7 , as a preferred implementation form, the body connecting portion 221 is formed with a receiving groove 22a, and in combination with Figure 8 , the part indicated by G on the A-pillar body 21 is embedded in the receiving groove 22a. In this way, by forming the receiving groove 22a on the body connecting portion 221 and embedding the A-pillar body 21 in the receiving groove 22a, it can be understood that it can facilitate the connection between the connecting piece 22 and the A-pillar body 21, and also can increase the reliability of the connection between the connecting piece 22 and the A-pillar body 21.

[0063] In the embodiment, as shown in Figure 5 , as a preferred implementation form, the side of the body connecting portion 221 towards the front of the vehicle is also provided with a connecting flange 2111 and a connecting via hole 2112. The connecting flange 2111 is fixed on the A-pillar body 21 as shown in Figure 4 , and the connecting via hole 2112 is used for the connecting component connected with the A-pillar body 21.

[0064] At this time, by providing the connecting flange 2111 and the connecting via hole 2112 on the side of the body connecting portion 221 towards the front of the vehicle, it can be understood that it can sufficiently increase the reliability of the connection between the vehicle body structure on the front side of the A-pillar body 21 and the A-pillar 2 by the connecting piece 22, and it is obviously also helpful to disperse the collision force transmitted to the sill beam 1 below by the connecting piece 22, so as to improve the transmission effect of the collision force at the A-pillar 2.

[0065] It is worth mentioning that in the vehicle body, the vehicle body structure in front of the A-pillar 2 can be, for example, the front undercross beam 5 described below, and in addition to the front undercross beam 5, further structures such as a torsion box and the like can be included, and the connecting component can be, for example, a bolt structure. Thus, the front undercross beam 5 and the like located in front of the A-pillar 2 can be connected to the A-pillar 2 by a screw connection structure, and the screw connection structure is connected to the A-pillar 2 through the connecting through hole 2112 and the through hole 21a in the A-pillar body 21.

[0066] In this embodiment, as shown in Figure 5 and Figure 6 , as a preferred implementation form, and based on the fact that the connecting member 22 is located inside the A-pillar body 21, a connecting boss 224 connected to the floor front cross beam 3 in the vehicle body is provided on the rocker connecting portion 222. In this way, by providing the connecting boss 224 on the rocker connecting portion 222, it is convenient to connect to the floor front cross beam 3, and the reliability of the connection between the connecting member 22 and the floor front cross beam 3 can be increased.

[0067] In specific implementation, preferably, a connecting groove 224a can be further formed on the connecting boss 224, and part of the end of the floor front cross beam 3 is embedded in the connecting groove 224a and connected to the connecting member 22. At this time, it can be understood that by providing the connecting groove 224a on the connecting boss 224, it is obviously convenient for the connection operation between the floor front cross beam 3 and the connecting member 22, and the reliability of the connection between the two can be increased.

[0068] It is worth mentioning that, as shown in Figure 1 and Figure 2 , in addition to the part embedded in the connecting groove 224a, the other part of the end of the floor front cross beam 3 can be lap-jointed and fixed to the middle connecting portion 223 in the connecting member 22.

[0069] In addition, based on the provision of the connecting boss 224, as a preferred implementation form, this embodiment can also provide a reinforcing rib 225 connected to the connecting boss 224 on the rocker connecting portion 222. In this way, by providing the reinforcing rib 225 connected to the connecting boss 224, the structural strength of the position of the connecting boss 224 can be increased by means of the reinforcing rib 225, so as to better ensure the stability of the connection of the floor front cross beam 3 on the connecting boss 224, and help to disperse the collision force transmitted from the connecting member 22 to the floor front cross beam 3.

[0070] In specific implementation, the reinforcing rib 225 can be located at the bottom of the connecting boss 224, and according to factors such as the wall thickness of the connecting boss 224 and the groove width of the connecting groove 224a, the reinforcing rib 225 can also be provided in multiple side-by-side arrangements to ensure its setting effect.

[0071] In the embodiment, as a preferred implementation form, in the specific implementation, the body connecting portion 221 in the connecting piece 22 and the A-pillar body 21, and the threshold connecting portion 222 and the intermediate connecting portion 223 and the threshold beam 1 can be connected by rivets 4, for example. At this time, the body connecting portion 221 and the A-pillar body 21, and the threshold connecting portion 222 and the intermediate connecting portion 223 and the threshold beam 1 are connected by rivets 4, which can be understood that it can ensure the connection effect of the connecting piece 22 and the A-pillar body 21 and the threshold beam 1, and also facilitate the connection operation, and also help to reduce the connection cost.

[0072] It should be noted that in addition to using rivets 4 for connection, of course, in the specific implementation, the connecting piece 22 of the embodiment and the A-pillar body 21 and the threshold beam 1 can also be connected by screwing or other conventional connection method, as long as it can ensure the connection effect between the connecting piece 22 and the A-pillar body 21 and the threshold beam 1.

[0073] In the embodiment, for the integrally formed connecting piece 22, in the specific implementation, as a preferred implementation, the connecting piece 22 can be integrally casted by aluminum alloy, for example. In this way, by integrally casting the connecting piece 22 by aluminum alloy, it is obvious that it can facilitate the preparation of the connecting piece 22, and also can take advantage of the characteristics of low weight and high strength of cast aluminum structure, which is beneficial to the lightweight of the connecting piece 22 and can ensure the structural strength of the connecting piece 22 itself.

[0074] And for the threshold beam 1, it can be preferably made of extruded aluminum profile, so that the characteristics of low weight and high strength of extruded aluminum structure can also be utilized to facilitate the lightweight of the threshold beam 1 and ensure the structural strength of the threshold beam 1.

[0075] Still from Figure 4 , Figure 8 , and in combination with Figure 9 , as a preferred implementation form, the A-pillar body 21 of the embodiment can include an A-pillar inner plate 211 and an A-pillar reinforcing plate 212 connected together, for example. At the same time, the A-pillar lower section reinforcing member 23 is also arranged inside the A-pillar 2 in the space formed by the A-pillar inner plate 211 and the A-pillar reinforcing plate 212. The bottom of the A-pillar lower section reinforcing member 23 is arranged in connection with the threshold beam 1 in the vehicle transverse direction, and the bottom of the A-pillar lower section reinforcing member 23 is also connected together with the threshold beam 1.

[0076] At this point, the connection between the bottom of the lower A-pillar reinforcement 23 and the sill beam 1, as described above, means that their projections in the left-right direction of the vehicle at least partially overlap. Furthermore, it can be understood that by including the inner A-pillar plate 211 and the A-pillar reinforcement plate 212 that are fastened together in the A-pillar body 21, and by providing the lower A-pillar reinforcement 23 inside the A-pillar 2, and by connecting the bottom of the lower A-pillar reinforcement 23 to the sill beam 1, the rigidity of the lower part of the A-pillar 2 can be further increased. Simultaneously, the lower A-pillar reinforcement 23 can also contribute to the clamping effect on the sill beam 1, thereby better increasing the connection rigidity between the A-pillar 2 and the sill beam 1.

[0077] In this embodiment, as a preferred implementation, both the A-pillar inner panel 211 and the A-pillar reinforcing plate 212 can be made of carbon fiber composite material. By using carbon fiber composite material for both the A-pillar inner panel 211 and the A-pillar reinforcing plate 212, it is understood that the low weight, high strength, and ease of design of carbon fiber structures can facilitate the lightweight and aesthetic design of the A-pillar 2 itself, while also ensuring the structural strength of the A-pillar 2.

[0078] It should be noted that when carbon fiber composite material is used for the A-pillar inner panel 211 and the A-pillar reinforcing plate 212, the A-pillar inner panel 211 and the A-pillar reinforcing plate 212, as well as the A-pillar inner panel 211 and the sill beam 1, can be bonded together using structural adhesive. In addition to using carbon fiber composite material, the A-pillar inner panel 211 and the A-pillar reinforcing plate 212 can also be made of conventional stamped sheet metal in specific implementations.

[0079] As a preferred embodiment, in this example, the lower section reinforcement 23 of the A-pillar located within the A-pillar 2 can be made of aluminum profile. Furthermore, by using aluminum profile for the lower section reinforcement 23, weight reduction of the A-pillar reinforcement 23 can be achieved while maintaining its structural strength. In practical implementation, the lower section reinforcement 23 of the A-pillar and the sill beam 1 are generally connected by a bolted or riveted structure passing through the inner plate 211 of the A-pillar.

[0080] When the aforementioned A-pillar lower section reinforcement 23 uses aluminum profiles, combined with Figure 10 As shown, to accommodate the arrangement needs at the bottom of A-pillar 2, for example, after the lower section reinforcement 23 of A-pillar is extruded, the positions indicated by the labels M and N on the inner and outer sides of the lower section reinforcement 23 can be removed through a machining process. This not only facilitates the installation of the lower section reinforcement 23 of A-pillar within A-pillar 2, but also makes the connection between the lower section reinforcement 23 of A-pillar and the sill beam 1 easier.

[0081] In addition, when the A-pillar lower section reinforcement 23 is arranged in the A-pillar 2, the vehicle body structure such as the front side frame 5 located at the front side of the A-pillar 2 can be directly connected with the A-pillar lower section reinforcement 23 through the connecting through hole 2112 and the through hole 21a. In this way, not only can the connecting structure such as the threaded hole be conveniently formed on the A-pillar 2, but also the stability of the connection between the A-pillar 2 and the surrounding structure can be ensured.

[0082] In this embodiment, as a preferred implementation form, based on the arrangement of the A-pillar lower section reinforcement 23, the A-pillar lower section reinforcement 23, the A-pillar body 21, and the upper portion of the connecting member 22 can be connected together through the first connecting structure during implementation. At this time, the upper portion of the connecting member 22 is the body connecting portion 221, and the first connecting structure can still be the rivet 4 connecting the body connecting portion 221 and the A-pillar body 21 together, but the rivet 4 at this time should pass through the A-pillar inner panel 211 and be connected with the A-pillar lower section reinforcement 23.

[0083] It can be understood that by connecting the A-pillar lower section reinforcement 23, the A-pillar body 21, and the upper portion of the connecting member 22 together, the overall rigidity of the root of the A-pillar 2 can be increased, and the structural stability of the mounting groove k formed at the bottom end of the A-pillar 2 can be increased, thereby helping to ensure the connection reliability between the A-pillar 2 and the rocker 1.

[0084] In this embodiment, as mentioned above, and in combination with Figure 11 As shown, the front side frame 5 can be arranged at the front side of the A-pillar 2, and at this time, the A-pillar lower section reinforcement 23, the A-pillar body 21, the connecting member 22, and the front side frame 5 are connected together through the second connecting structure. At this time, the A-pillar lower section reinforcement 23, the A-pillar body 21, the connecting member 22, and the front side frame 5 are connected together, which can increase the connection reliability between the A-pillar 2 and the front side frame 5, improve the stability of the arrangement of the front side frame 5 in the vehicle body, and improve the transmission effect of the impact force between the A-pillar 2 and the front side frame 5.

[0085] It should be noted that the second connecting structure can be a connecting member arranged through the connecting through hole 2112 and the through hole 21a during implementation. The through hole 21a is located on the A-pillar reinforcement plate 212, and preferably, the second connecting structure can be arranged as multiple spaced-apart connecting members to ensure the connection reliability between the front side frame 5 and the A-pillar 2.

[0086] The vehicle body structure of the embodiment can increase the connecting stiffness between the root of the A-pillar 2 and the rocker beam 1, can increase the collision force transmission capacity between the A-pillar 2 and the rocker beam 1, is beneficial to improve the collision safety of the whole vehicle, and has good practicability.

[0087] Embodiment two

[0088] The embodiment relates to a vehicle with the vehicle body structure in embodiment one.

[0089] The vehicle of the embodiment is provided with the vehicle body structure in embodiment one, can increase the connecting stiffness between the root of the A-pillar 2 and the rocker beam 1, can increase the collision force transmission capacity between the A-pillar 2 and the rocker beam 1, is beneficial to improve the collision safety of the whole vehicle, and has good practicability.

[0090] The above merely describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vehicle body structure, characterized by comprising a rocker beam (1) and an A-pillar (2) connected to the rocker beam (1) at a root portion; the A-pillar (2) comprises an A-pillar body (21) and a connecting member (22) connected to a bottom portion of the A-pillar body (21), the connecting member (22) is located at one side of the A-pillar body (21) along a left-right direction of the vehicle, and an installation groove (k) is formed between the connecting member (22) and the A-pillar body (21); the rocker beam (1) is located in the installation groove (k) and connected to the A-pillar body (21) and the connecting member (22) together; the connecting member (22) is integrally formed, and the connecting member (22) has a body connecting portion (221), an intermediate connecting portion (223) and a rocker connecting portion (222) connected in sequence from top to bottom; the body connecting portion (221) is overlapped and fixed to the A-pillar body (21), the rocker connecting portion (222) forms the installation groove (k) with a bottom end of the A-pillar body (21), and the rocker connecting portion (222) is overlapped and fixed to the rocker beam (1); the intermediate connecting portion (223) is overlapped and fixed to a top portion of the rocker beam (1); the body connecting portion (221) is formed with a receiving groove (22a), and the A-pillar body (21) is partially embedded in the receiving groove (22a); the connecting member (22) is located at a side of the A-pillar body (21) facing a vehicle interior, and the rocker connecting portion (222) is provided with a connecting boss (224) connected to a front floor cross beam (3); the connecting boss (224) is formed with a connecting groove (224a), and an end portion of the front floor cross beam (3) is embedded in the connecting groove (224a); the rocker connecting portion (222) is provided with a reinforcing rib (225) connected to the connecting boss (224). 2.The vehicle body structure according to claim 1, characterized in that: the connecting member (22) is integrally formed by aluminum alloy casting; and / or, the body connecting portion (221) and the A-pillar body (21) and the rocker connecting portion (222) and the rocker beam (1) are connected by rivets (4). 3.The vehicle body structure according to claim 1 or 2, characterized in that: the A-pillar body (21) comprises an A-pillar inner panel (211) and an A-pillar reinforcing panel (212) connected together by buckling, and an A-pillar lower section reinforcing member (23) is arranged in a space formed by the A-pillar inner panel (211) and the A-pillar reinforcing panel (212); a bottom portion of the A-pillar lower section reinforcing member (23) is arranged in abutment with the rocker beam (1) along the left-right direction of the vehicle, and the bottom portion of the A-pillar lower section reinforcing member (23) is connected to the rocker beam (1) together. 4.The vehicle body structure according to claim 3, characterized in that: the A-pillar inner panel (211) and the A-pillar reinforcing panel (212) are made of carbon fiber composite material, and / or the A-pillar lower section reinforcing member (23) is made of aluminum profile. ​ ​ ​ ​ ​ ​ ​ ​ ​ 5. The vehicle body structure according to claim 3, characterized in that: the A-pillar lower section reinforcement (23), the A-pillar body (21), and an upper portion of the connecting member (22) are connected together by a first connection structure; and / or a front side of the A-pillar (2) is provided with a cowl lower cross member (5), and the A-pillar lower section reinforcement (23), the A-pillar body (21), the connecting member (22), and the cowl lower cross member (5) are connected together by a second connection structure.

6. A vehicle characterized by: the vehicle has the vehicle body structure according to any one of claims 1 to 5.

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