Vehicle body structure and vehicle

Abstract

The invention provides a vehicle body structure and a vehicle. The vehicle body structure comprises a doorsill beam and a column A, wherein the root of the column A is connected with the doorsill beam; the A column comprises an A column body and a connecting piece connected to the bottom of the A column body, the connecting piece is located on the side, in the left-right direction of the whole vehicle, of the A column body, and a mounting groove is defined by the connecting piece and the A column body; the doorsill beam is located in the installation groove and connected with the A column body and the connecting piece. According to the vehicle body structure, the mounting groove is formed in the bottom end of the A column, and the doorsill beam is located in the mounting groove, so that the connection performance between the root of the A column and the doorsill beam can be improved, and the collision safety of the whole vehicle can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle body structure. The present invention also relates to a vehicle provided with the vehicle body structure. Background Art

[0002] In the related art, the root of the A-pillar in the vehicle body is generally connected to the door sill beam, and the upper part is connected to the front wheel arch side beam and the front enclosure cross beam, as well as the roof side beam on the top of the vehicle body to form a coherent body side frame structure.

[0003] Among them, with regard to the connection between the root of the A-pillar and the sill beam, most of the existing technologies adopt a welding method to connect the bottom end of the A-pillar to the sill beam. Although this connection method can achieve the connection between the A-pillar and the sill beam, it also has the problem that the connection stiffness of the root of the A-pillar is weak. When the vehicle collides, the root of the A-pillar is prone to failure, resulting in the interruption of the collision force transmission channel between the A-pillar and the sill beam, which is not conducive to improving the collision safety of the entire vehicle. Summary of the invention

[0004] In view of this, the present invention aims to provide a vehicle body structure to help improve the safety of the entire vehicle in collision.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A vehicle body structure comprises a rocker beam and an A-pillar whose root is connected to the rocker beam;

[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 a mounting groove is formed between the connecting piece and the A-pillar body;

[0008] The threshold beam is located in the mounting groove and is connected to the A-pillar body and the connecting member.

[0009] Furthermore, the connecting piece is integrally formed, and comprises a main body connecting part, a middle connecting part and a threshold connecting part which are sequentially connected from top to bottom;

[0010] The body connection part is overlapped and fixedly connected to the A-pillar body, the door sill connection part and the bottom end of the A-pillar body are surrounded to form the installation groove, and the door sill connection part is overlapped and fixedly connected to the door sill beam.

[0011] Further, the middle connecting part is overlapped and fixed on the top of the threshold beam; and / or,

[0012] A receiving groove is formed on the body connecting part, and the A-pillar body part is embedded in the receiving groove.

[0013] Furthermore, the connecting member is located on the side of the A-pillar body facing the interior of the vehicle, and a connecting boss connected to the front cross beam of the floor is provided on the door sill connecting part.

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

[0015] The threshold connecting portion is provided with a reinforcing rib connected to the connecting boss.

[0016] Furthermore, the connecting piece is formed by integral casting of aluminum alloy; and / or,

[0017] The body connecting portion and the A-pillar body, as well as the door sill connecting portion and the door sill beam are connected by rivets.

[0018] Furthermore, the A-pillar body includes an A-pillar inner plate and an A-pillar reinforcement plate that are buckled and connected together, and an A-pillar lower section reinforcement member is provided in the space formed by the A-pillar inner plate and the A-pillar reinforcement plate;

[0019] The bottom of the A-pillar lower section reinforcement is connected to the door sill beam in the left-right direction of the whole vehicle, and the bottom of the A-pillar lower section reinforcement is connected to the door sill beam.

[0020] Furthermore, the A-pillar inner plate and the A-pillar reinforcement plate are both made of carbon fiber composite materials, and / or the A-pillar lower section reinforcement is made of aluminum profiles.

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

[0022] A front panel lower cross beam is provided on the front side of the A-pillar, and the A-pillar lower section reinforcement, the A-pillar body, the connecting member and the front panel lower cross beam are connected together by a second connecting member.

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

[0024] The vehicle body structure described in the present invention provides a connecting piece at one side of the root of the A-pillar, so that a mounting groove is formed between the connecting piece and the A-pillar body, and the threshold beam is located in the mounting groove and connected with the A-pillar body and the connecting piece. Therefore, the A-pillar body and the connecting piece can be used to hold the threshold beam from both sides, as well as the connection between the A-pillar body and the connecting piece and the threshold beam, to increase the connection stiffness between the root of the A-pillar and the threshold beam, and to increase the collision force transmission capacity between the A-pillar and the threshold beam, thereby facilitating the improvement of the collision safety of the entire vehicle.

[0025] In addition, the connector is integrally formed, and has a pillar connection portion connected to the vehicle body pillar and a threshold connection portion connected to the threshold beam, which not only ensures the structural strength of the connector itself by means of integral forming, but also facilitates forming a mounting groove integrally with the A-pillar body. The middle connection portion is overlapped and fixed on the top of the threshold beam, which can increase the connection strength between the connector and the threshold beam. The receiving groove is formed in the body connection portion, so that the A-pillar portion is embedded in the receiving groove, which can facilitate the connection between the connector and the A-pillar, and can also increase the reliability of the connection between the connector and the A-pillar.

[0026] Secondly, the connection boss is provided on the door sill connection part, which can facilitate the connection with the front floor beam and increase the reliability of the connection between the connection piece and the front floor beam. The connection groove is provided on the connection boss, which can further facilitate the connection operation between the front floor beam and the connection piece and increase the reliability of the connection between the two. By providing a reinforcing rib connected to the connection boss, the structural strength of the connection boss position can be increased with the help of the reinforcing rib, so as to better ensure the stability of the connection of the front floor beam on the connection boss.

[0027] The connector is made of aluminum alloy integral casting, which is convenient for the preparation of the connector, and can also take advantage of the low weight and high strength of cast aluminum structure, which is conducive to the lightweight of the connector and ensures the structural strength of the connector itself. The main body connection part and the A-pillar body, the door sill connection part, and the middle connection part and the door sill beam are connected by rivets, which can ensure the connection effect and facilitate the connection operation, and also help reduce the connection cost.

[0028] In addition, the A-pillar includes an A-pillar inner plate and an A-pillar reinforcement plate that are snapped together, and an A-pillar lower section reinforcement is arranged in the A-pillar, and the bottom of the A-pillar lower section reinforcement is connected to the door sill beam, which can further increase the rigidity of the lower part of the A-pillar and the connection rigidity between the A-pillar and the door sill beam. The A-pillar inner plate and the A-pillar reinforcement plate are made of carbon fiber composite materials, which can be beneficial to the lightweight design and shape design of the A-pillar itself, and can also ensure the structural strength of the A-pillar. The A-pillar lower section reinforcement is made of aluminum profiles, which can also be beneficial to the weight reduction of the A-pillar lower section reinforcement and can ensure the structural strength of the A-pillar lower section reinforcement.

[0029] By connecting the A-pillar lower section reinforcement, the A-pillar body and the upper part of the connecting piece together, the overall rigidity of the A-pillar root can be increased, the structural stability of the formed installation groove can be increased, and the reliability of the connection between the A-pillar and the door sill beam can be ensured. By connecting the A-pillar lower section reinforcement, the A-pillar body, the connecting piece and the front wall lower cross beam together, the reliability of the connection between the A-pillar and the front wall lower cross beam can be increased, and the stability of the front wall lower cross beam in the vehicle body can be improved, as well as the transmission effect of the collision force between the A-pillar and the front wall lower cross beam.

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

[0031] The vehicle described in the present invention has the same beneficial effects as the above-mentioned vehicle body structure, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0033] Figure 1 A schematic diagram of a vehicle body structure according to an embodiment of the present invention;

[0034] Figure 2 for Figure 1 A partial enlarged schematic diagram;

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

[0036] Figure 4 It is a schematic diagram of the structure of the installation slot according to an embodiment of the present invention;

[0037] Figure 5 It is a structural schematic diagram of a connecting piece according to an embodiment of the present invention;

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

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

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

[0041] Fig. 9 It is a schematic diagram of the arrangement of the A-pillar lower section reinforcement member according to an embodiment of the present invention;

[0042] Fig.10 This is a schematic structural diagram of an A-pillar lower reinforcement member according to an embodiment of the present invention;

[0043] Fig.11 A schematic diagram of the connection between the front wall lower cross beam and the A-pillar according to an embodiment of the present invention;

[0044] Description of reference numerals:

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

[0046] 21. A-pillar body; 211. A-pillar inner plate; 212. A-pillar reinforcement plate; 21a. through hole; 22. connector; 221. pillar connection part; 2211. connection flange; 2212. connection through hole; 222. door sill connection part; 223. middle connection part; 224. connection boss; 224a. connection groove; 225. reinforcement rib; 22a. accommodation groove; 23. A-pillar lower section reinforcement;

[0047] M, inner removal area; N, outer removal area; G, the portion of the A-pillar embedded in the receiving groove; k, installation groove. DETAILED DESCRIPTION

[0048] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0049] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

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

[0052] Embodiment 1

[0053] The present embodiment relates to a vehicle body structure, which can increase the connection stiffness between the root of the A-pillar 2 and the sill beam 1, and can increase the collision force transmission capacity between the A-pillar 2 and the sill beam, which is beneficial to improving the collision safety of the entire vehicle.

[0054] In terms of overall structure, combined Figures 1 to 4 As shown in , the vehicle body structure of this embodiment includes a rocker beam 1 and an A-pillar 2 connected to the rocker beam 1 at its root.

[0055] Among them, the A-pillar 2 includes an A-pillar body 21 and a connecting piece 22 connected to the bottom of the A-pillar body 21. Along the left-right direction of the vehicle, the connecting piece 22 is located on the inner side of the A-pillar body 21, that is, the side of the A-pillar body 21 facing the interior of the vehicle. At the same time, an installation groove k is also formed between the connecting piece 22 and the A-pillar body 21. The sill beam 1 is located in the installation groove k and is connected to the A-pillar body 21 and the connecting piece 22.

[0056] At this time, as set above, by setting a connecting piece 22 on one side of the root of the A-pillar 2, a mounting groove k is formed between the connecting piece 22 and the A-pillar body 21, and the threshold beam 1 is located in the mounting groove k and connected with the A-pillar body 21 and the connecting piece 22. This embodiment uses the A-pillar body 21 and the connecting piece 22 to hold the threshold beam 1 from both sides, as well as the connection between the A-pillar body 21 and the connecting piece 22 and the threshold beam 1, so as to increase the connection stiffness between the root of the A-pillar 2 and the threshold beam 1, thereby achieving the effect of increasing the collision force transmission capacity between the A-pillar 2 and the threshold beam 1.

[0057] Based on the above overall introduction, specifically, still refer to Figure 4 As shown in the figure, the installation groove k formed by the A-pillar body 21 and the connecting member 22 of the present embodiment is specifically a groove structure located at the bottom end of the A-pillar 2, with the front, rear and bottom sides open. In specific implementation, the threshold beam 1 can generally be first connected and fixed to the inner side of the A-pillar body 21, and then the connecting member 22 is fixed to the A-pillar body 21. Finally, after the connecting member 22 is connected and fixed to the threshold beam 1, the installation groove k that clamps the threshold beam 1 is formed.

[0058] Of course, in addition to the above-mentioned molding method, other preparation processes can also be used to enclose and form the above-mentioned installation groove k, and the door sill beam 1 is arranged in the installation groove k. At the same time, it should be pointed out that, in addition to the preferred method of making the connecting member 22 located on the inner side of the A-pillar body 21, in specific implementation, according to design requirements, in the left-right direction of the whole vehicle, the connecting member 22 is located on the outer side of the A-pillar body 21, that is, the side of the A-pillar body 21 facing the outside of the vehicle, which is also possible.

[0059] In this embodiment, combined with Figures 5 to 7 As shown in the figure, as a preferred embodiment, in the specific implementation, the connecting member 22 can be integrally formed, and in terms of structure, the connecting member 22 also has a body connecting portion 221, an intermediate connecting portion 223 and a threshold connecting portion 222 which are sequentially connected from top to bottom. The body connecting portion 221 is overlapped and fixedly connected to the A-pillar body 21, the threshold connecting portion 222 is formed with the bottom end of the A-pillar body 21 to form a mounting groove k, and the threshold connecting portion 222 is also overlapped and fixedly connected to the threshold beam 1.

[0060] At this time, the connecting member 22 is stepped and has a body connecting portion 221 connected to the A-pillar body 21 and a sill connecting portion 222 connected to the sill beam 1. It can not only ensure the structural strength of the connecting member 22 itself by means of one-piece molding, but also utilize the connection between the root of the A-pillar body 21 and the sill beam 1 to further increase the overall stiffness of the root of the A-pillar 2, thereby improving the collision force transmission capacity between the A-pillar 2 and the sill beam 1.

[0061] As a preferred implementation form, Figure 2 As shown, in a specific implementation, the above-mentioned middle connecting portion 223 can also be overlapped and fixed on the top of the sill beam 1. In this way, the middle connecting portion 223 is overlapped and fixed on the top of the sill beam 1, which can not only increase the connection strength between the connecting member 22 and the sill beam 1, but also help to improve the stability of the sill beam 1 in the installation groove k, and facilitate the connection between the body side structure formed by the connecting member 22 and the sill beam 1 and the body cross beam structure such as the floor front cross beam 3.

[0062] This embodiment still refers to Figure 7 As shown in the figure, as a preferred embodiment, a receiving groove 22a is formed on the main body connecting part 221, and Figure 8 As shown in FIG. 1 , the portion indicated by the reference numeral G on the A-pillar body 21 is embedded in the above-mentioned receiving groove 22a. In this way, by forming the receiving groove 22a on the body connecting portion 221 and partially embedding the A-pillar body 21 in the receiving groove 22a, it can be understood that it can facilitate the connection between the connecting member 22 and the A-pillar body 21, and can also increase the reliability of the connection between the connecting member 22 and the A-pillar body 21.

[0063] In this embodiment, continue as Figure 5 As shown in FIG. 2 , as a preferred embodiment, a connecting flange 2111 and a connecting hole 2112 are also provided on the side of the main body connecting portion 221 facing the front of the vehicle. Figure 4 The overlap shown is fixed on the A-pillar body 21 , and the above-mentioned connecting through hole 2112 is used for the connecting component connected to the A-pillar body 21 to pass through.

[0064] At this time, by setting a connecting flange 2111 and a connecting hole 2112 on the side of the main connecting part 221 facing the front of the vehicle, it can be understood that it can make full use of the connecting piece 22 to 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. At the same time, it obviously also helps to transmit and disperse the collision force to the lower rocker beam 1 through the connecting piece 22, so as to enhance the transmission effect of the collision force at the A-pillar 2.

[0065] It is worth noting that, in the vehicle body, the vehicle body structure on the front side of the A-pillar 2 may be, for example, the following lower cross beam 5, and in addition to the lower cross beam 5, it may further include structures such as a torsion box, and the above-mentioned connecting components may be, for example, structures such as bolts. Thus, the lower cross beam 5 located on the front side of the A-pillar 2 may be connected to the A-pillar 2 through a screw connection structure, and the screw connection structure passes through the connecting through hole 2112 and the through hole 21a on the A-pillar body 21 to be connected to the A-pillar 2.

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

[0067] In specific implementation, preferably, a connection groove 224a may be further formed on the connection boss 224, and a portion of the end of the front floor beam 3 is embedded in the connection groove 224a and then connected to the connection piece 22. At this point, it can be understood that by providing the connection groove 224a on the connection boss 224, it is obviously further conducive to the connection operation between the front floor beam 3 and the connection piece 22, and increases the reliability of the connection between the two.

[0068] It is worth noting that Figure 1 and Figure 2 As shown, except for the portion embedded in the connecting groove 224 a , the other portion of the end of the front floor beam 3 can be overlapped and fixedly connected to the middle connecting portion 223 in the connecting member 22 .

[0069] In addition, based on the arrangement of the connecting boss 224, as a preferred implementation form, in this embodiment, for example, a reinforcing rib 225 connected to the connecting boss 224 may be arranged on the door sill connecting portion 222. In this way, by arranging the reinforcing rib 225 connected to the connecting boss 224, the structural strength of the connecting boss 224 can be increased with the help of the reinforcing rib 225, so as to better ensure the stability of the connection of the front floor beam 3 on the connecting boss 224, and help to transmit and disperse the collision force from the connecting member 22 to the front floor beam 3.

[0070] In a specific implementation, the reinforcing rib 225 may 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 may also be arranged in a plurality in parallel to ensure the setting effect.

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

[0072] It should be noted that, in addition to the rivets 4, in the specific implementation, the connecting member 22 of this embodiment and the A-pillar body 21 and the door sill beam 1 can also be connected by screw connection or other conventional connection methods, as long as it can ensure the connection effect between the connecting member 22 and the A-pillar body 21 and the door sill beam 1.

[0073] In this embodiment, for the integrally formed connector 22, when it is specifically implemented, as a preferred implementation, for example, the connector 22 can be integrally cast by aluminum alloy. In this way, by integrally casting the connector 22 by aluminum alloy, it is obviously easy to prepare the connector 22, and at the same time, it can also take advantage of the low weight and high strength of the cast aluminum structure, which is conducive to the lightweight of the connector 22 and can ensure the structural strength of the connector 22 itself.

[0074] As for the threshold beam 1 , it is preferred to use, for example, an extruded aluminum profile. In this way, the characteristics of low weight and high strength of the extruded aluminum structure can be utilized, which is beneficial to the lightweight of the threshold beam 1 while ensuring the structural strength of the threshold beam 1 .

[0075] Still by Figure 4 , Figure 8 , and combined with Fig. 9 As shown, as a preferred implementation form, the A-pillar body 21 of this embodiment may structurally include, for example, an A-pillar inner plate 211 and an A-pillar reinforcement plate 212 that are snap-fitted together. At the same time, an A-pillar lower section reinforcement 23 is also disposed in the space formed by the A-pillar inner plate 211 and the A-pillar reinforcement plate 212, that is, inside the A-pillar 2. The bottom of the A-pillar lower section reinforcement 23 is connected to the sill beam 1 in the left-right direction of the vehicle, and the bottom of the A-pillar lower section reinforcement 23 is also connected to the sill beam 1.

[0076] At this time, the connection between the bottom of the A-pillar lower section reinforcement 23 and the threshold beam 1, that is, the projections of the two in the left-right direction of the whole vehicle at least partially overlap. Moreover, it can be understood that by making the A-pillar body 21 include the A-pillar inner plate 211 and the A-pillar reinforcement plate 212 that are buckled together, and setting the A-pillar lower section reinforcement 23 inside the A-pillar 2, and making the bottom of the A-pillar lower section reinforcement 23 also connected with the threshold beam 1. It can not only further increase the rigidity of the lower part of the A-pillar 2, but also make the A-pillar lower section reinforcement 23 join the sill beam 1, so as to better increase the connection rigidity between the A-pillar 2 and the threshold beam 1.

[0077] In this embodiment, as a preferred implementation form, in specific implementation, the A-pillar inner plate 211 and the A-pillar reinforcement plate 212 can be made of carbon fiber composite materials, for example. In this way, by making the A-pillar inner plate 211 and the A-pillar reinforcement plate 212 made of carbon fiber composite materials, it can be understood that it can take advantage of the characteristics of low weight, high strength, and easy design of carbon fiber structure, which can be beneficial to the lightweight design and design of the A-pillar 2 itself, and can also ensure the structural strength of the A-pillar 2.

[0078] It should be noted that when the A-pillar inner plate 211 and the A-pillar reinforcement plate 212 are made of carbon fiber composite materials, the A-pillar inner plate 211 and the A-pillar reinforcement plate 212, as well as the A-pillar inner plate 211 and the door sill beam 1 can be connected by structural adhesive. In addition, in addition to being made of carbon fiber composite materials, of course, in specific implementation, the A-pillar inner plate 211 and the A-pillar reinforcement plate 212 can also be made of conventional stamping sheet metal structures.

[0079] As a preferred implementation form, in this embodiment, the A-pillar lower section reinforcement 23 located in the A-pillar 2 can be made of, for example, an aluminum profile. Moreover, by making the A-pillar lower section reinforcement 23 of an aluminum profile, it is beneficial to reduce the weight of the A-pillar lower section reinforcement 23 and ensure the structural strength of the A-pillar lower section reinforcement 23. In specific implementation, the A-pillar lower section reinforcement 23 and the door sill beam 1 are generally connected by a screw connection or a riveted connection structure passing through the A-pillar inner plate 211.

[0080] When the A-pillar lower reinforcement 23 is made of aluminum, Fig.10 As shown in , in order to meet the arrangement requirements of the bottom end of the A-pillar 2, for example, after the A-pillar lower section reinforcement 23 is extruded, the positions indicated by the numbers M and N on the inner and outer sides of the A-pillar lower section reinforcement 23 can be removed through a machining process. In this way, it is not only convenient to arrange the A-pillar lower section reinforcement 23 in the A-pillar 2, but also convenient to connect the A-pillar lower section reinforcement 23 and the door sill beam 1.

[0081] In addition, when the A-pillar lower reinforcement 23 is provided in the A-pillar 2, the vehicle body structure such as the front wall lower cross beam 5 located in front of the A-pillar 2 can be directly connected to the A-pillar lower reinforcement 23 through the connecting through hole 2112 and the through hole 21a. In this way, it is not only convenient to form connecting and matching structures such as threaded holes on the A-pillar 2, but also can ensure the stability of the connection between the A-pillar 2 and the surrounding structure.

[0082] In this embodiment, as a preferred implementation form, based on the arrangement of the A-pillar lower section reinforcement 23, during specific implementation, the A-pillar lower section reinforcement 23, the A-pillar body 21, and the upper portion of the connecting member 22 may be connected together through a first connection structure. At this time, the upper portion of the connecting member 22 is also the body connection portion 221, and the first connection structure may still be, for example, the rivet 4 that connects the body connection portion 221 and the A-pillar body 21, but the rivet 4 should pass through the A-pillar inner plate 211 and be connected to 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 part 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 reliability of the connection between the A-pillar 2 and the sill beam 1.

[0084] In this embodiment, as mentioned above, combined with Fig.11 As shown, for example, a front wall lower cross beam 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 wall lower cross beam 5 are connected together through the second connection structure. At this time, the A-pillar lower section reinforcement 23, the A-pillar body 21, the connecting member 22 and the front wall lower cross beam 5 are connected together, which can increase the reliability of the connection between the A-pillar 2 and the front wall lower cross beam 5, and can improve the stability of the front wall lower cross beam 5 in the vehicle body, as well as the transmission effect of the collision force between the A-pillar 2 and the front wall lower cross beam 5.

[0085] It is worth noting that, in specific implementation, the second connection structure can be a connection component provided through the connection hole 2112 and the through hole 21a. The through hole 21a is specifically located on the A-pillar reinforcement plate 212, and preferably, the second connection structure can be provided as a plurality of spaced-apart structures to ensure the reliability of the connection between the front lower cross beam 5 and the A-pillar 2.

[0086] The vehicle body structure of this embodiment is provided with a connecting piece 22 at the root of the A-pillar 2, and a mounting groove k is formed at the bottom of the A-pillar 2 by the setting of the connecting piece 22. At the same time, the sill beam 1 is located in the mounting groove k and is connected to the A-pillar body 21 and the connecting piece 22. In addition, an A-pillar lower section reinforcement 23 is provided in the A-pillar body 21, which can make the sill beam 1 be tightly held and fixed in the A-pillar 2, thereby increasing the connection stiffness between the root of the A-pillar 2 and the sill beam 1, and increasing the collision force transmission effect between the A-pillar 2 and the sill beam 1, which can improve the collision safety of the whole vehicle and has good practicality.

[0087] Embodiment 2

[0088] This embodiment relates to a vehicle having the vehicle body structure in the first embodiment.

[0089] The vehicle of this embodiment is provided with the body structure of the first embodiment, which can increase the connection stiffness between the root of the A-pillar 2 and the sill beam 1, and can also increase the collision force transmission capacity between the A-pillar 2 and the sill beam 1, which is beneficial to improving the collision safety of the whole vehicle and has good practicality.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle body structure, Features: It comprises a door sill beam (1), and an A-pillar (2) whose root is connected to the door sill beam (1); The A-pillar (2) comprises an A-pillar body (21), and a connecting member (22) connected to the bottom of the A-pillar body (21), the connecting member (22) is located on one side of the A-pillar body (21) along the left-right direction of the whole vehicle, and a mounting groove (k) is formed between the connecting member (22) and the A-pillar body (21); The threshold beam (1) is located in the installation groove (k) and is connected to the A-pillar body (21) and the connecting member (22).

2. The vehicle body structure according to claim 1, Features: The connecting member (22) is integrally formed, and comprises a main body connecting portion (221), a middle connecting portion (223), and a threshold connecting portion (222) which are sequentially connected from top to bottom; The body connection portion (221) is overlapped and fixedly connected to the A-pillar body (21), the threshold connection portion (222) and the bottom end of the A-pillar body (21) are surrounded to form the installation groove (k), and the threshold connection portion (222) is overlapped and fixedly connected to the threshold beam (1).

3. The vehicle body structure according to claim 2, Features: The intermediate connecting portion (223) is overlapped and fixed on the top of the threshold beam (1); and / or, A receiving groove (22a) is formed on the body connection portion (221), and the A-pillar body (21) is partially embedded in the receiving groove (22a).

4. The vehicle body structure according to claim 2, Features: The connecting member (22) is located on the side of the A-pillar body (21) facing the interior of the vehicle, and a connecting boss (224) connected to the front floor beam (3) is provided on the door sill connecting portion (222).

5. The vehicle body structure according to claim 4, Features: A connecting groove (224a) is formed on the connecting boss (224), and an end portion of the front floor beam (3) is embedded in the connecting groove (224a); and / or, The threshold connecting portion (222) is provided with a reinforcing rib (225) connected to the connecting boss (224).

6. The vehicle body structure according to claim 2, Features: The connecting piece (22) is formed by integral casting of aluminum alloy; and / or, The body connection part (221) and the A-pillar body (21), as well as the door sill connection part (222) and the door sill beam (1) are connected via rivets (4).

7. The vehicle body structure according to any one of claims 1 to 6, Features: The A-pillar body (21) comprises an A-pillar inner plate (211) and an A-pillar reinforcement plate (212) which are buckled and connected together, and an A-pillar lower section reinforcement member (23) is provided in a space enclosed by the A-pillar inner plate (211) and the A-pillar reinforcement plate (212); The bottom of the A-pillar lower section reinforcement (23) is connected to the door sill beam (1) in the left-right direction of the whole vehicle, and the bottom of the A-pillar lower section reinforcement (23) is connected to the door sill beam (1) together.

8. The vehicle body structure according to claim 7, Features: The A-pillar inner plate (211) and the A-pillar reinforcement plate (212) are both made of carbon fiber composite material, and / or the A-pillar lower section reinforcement (23) is made of aluminum profile.

9. The vehicle body structure according to claim 7, Features: The A-pillar lower section reinforcement (23), the A-pillar body (21), and the upper portion of the connecting member (22) are connected together via a first connecting structure; and / or, A front lower cross beam (5) is provided on the front side of the A-pillar (2), and the A-pillar lower section reinforcement (23), the A-pillar body (21), the connecting member (22) and the front lower cross beam (5) are connected together via a second connecting structure.

10. A vehicle, Features: The vehicle has the vehicle body structure according to any one of claims 1 to 9.

Images