Vehicle body structure and vehicle

Abstract

A vehicle body structure and a vehicle. The vehicle body structure comprises a sill beam and an A pillar, wherein the root of the A pillar is connected to the sill beam; the A pillar comprises an A pillar body and a connector connected to the bottom of the A pillar body, the connector is located on one side of the A pillar body in the left-right direction of the whole vehicle, and the connector and the A pillar body define a mounting groove therebetween; and the sill beam is located in the mounting groove and is connected to the A pillar body and the connector. In the vehicle body structure, the mounting groove is formed at a bottom end of the A pillar, and the sill beam is located in the mounting groove, so that the connection performance between the root of the A pillar and the sill beam can be improved, thereby improving the collision safety of the whole vehicle.

Description

Body structure and vehicle

[0001] This disclosure claims priority to patent application number 202311669666.1 filed with the China Patent Office on December 6, 2023, entitled “Body Structure and Vehicle,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the field of vehicle technology, and more particularly to a vehicle body structure. The present disclosure also relates to a vehicle having the above vehicle body structure. Background Art

[0003] In related technologies, the root of the A-pillar in the car body is generally connected to the rocker beam. In addition to being connected to the front wheel arch side beam and the front panel cross beam, the upper part is also connected to the roof side beam on the top of the car body to form a coherent body side skeleton structure.

[0004] Among them, with regard to the connection between the root of the A-pillar and the rocker beam, the existing technology mostly adopts a welding method to connect the bottom end of the A-pillar to the rocker beam. Although this connection method can achieve the connection between the A-pillar and the rocker beam, it also has the problem of weak connection stiffness at the root of the A-pillar. 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 rocker beam, which is not conducive to improving the collision safety of the entire vehicle. Summary of the Invention

[0005] In view of this, the present disclosure aims to propose a vehicle body structure to improve the safety of the entire vehicle in collision.

[0006] To achieve the above objectives, the technical solution of the present disclosure is implemented as follows:

[0007] A vehicle body structure includes a rocker beam and an A-pillar connected to the rocker beam at its root;

[0008] The A-pillar includes 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;

[0009] The door sill beam is located in the mounting groove and is connected to the A-pillar body and the connecting member.

[0010] Furthermore, the mounting groove is a groove structure located at the bottom end of the A-pillar, with the front, rear and bottom sides open;

[0011] When forming the installation groove, the threshold beam is first connected and fixed to the inner side of the A-pillar body, then the connecting piece is fixed to the A-pillar body, and finally the connecting piece is connected and fixed to the threshold beam to form the installation groove that clamps the threshold beam.

[0012] Furthermore, the connecting piece is integrally formed and comprises a main body connecting portion, a middle connecting portion and a threshold connecting portion which are sequentially connected from top to bottom;

[0013] 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.

[0014] Furthermore, the intermediate connecting portion is overlapped and fixed on the top of the door sill beam; and / or,

[0015] A receiving groove is formed on the body connecting portion, and the A-pillar body portion is embedded in the receiving groove.

[0016] 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 crossbeam of the floor is provided on the door sill connecting part.

[0017] Furthermore, 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,

[0018] The threshold connecting portion is provided with a reinforcing rib connected to the connecting boss.

[0019] Furthermore, among the ends of the front cross beam of the floor, the other parts except the end parts are overlapped and fixedly connected to the middle connecting part of the connecting member;

[0020] A connecting flange is provided on a side of the body connecting portion facing the front of the vehicle, and the connecting flange is overlapped and fixed on the A-pillar body.

[0021] Furthermore, the connecting piece is formed by integral casting of aluminum alloy; and / or,

[0022] The body connecting portion and the A-pillar body, as well as the sill connecting portion and the sill beam are connected via rivets.

[0023] Furthermore, the A-pillar body includes an A-pillar inner plate and an A-pillar reinforcement plate that are snap-connected together, and an A-pillar lower section reinforcement is provided in the space formed by the A-pillar inner plate and the A-pillar reinforcement plate;

[0024] The bottom of the A-pillar lower section reinforcement is connected to the rocker beam in the left-right direction of the vehicle, and the bottom of the A-pillar lower section reinforcement is connected to the rocker beam.

[0025] Furthermore, the A-pillar inner panel 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.

[0026] Furthermore, the A-pillar lower reinforcement, the A-pillar body, and the upper portion of the connecting member are connected together by a first connecting member.

[0027] A front lower cross member 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 lower cross member are connected together by a second connecting member.

[0028] Furthermore, the second connection structure adopts the aforementioned connection components provided through the connection vias and through holes;

[0029] The connecting through hole is located on a side of the main body connecting portion of the connecting member facing the front of the vehicle, and the through hole is located on the A-pillar reinforcement plate.

[0030] Furthermore, the door sill beam is made of extruded aluminum profile.

[0031] Compared with the prior art, the present disclosure has the following advantages:

[0032] The vehicle body structure disclosed 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 rocker beam is located in the mounting groove and connected to the A-pillar body and the connecting piece. As a result, the rocker beam can be tightly embraced from both sides by the A-pillar body and the connecting piece, and the connection between the A-pillar body, the connecting piece and the rocker beam can be increased, thereby increasing the connection stiffness between the root of the A-pillar and the rocker beam, and increasing the collision force transmission capacity between the A-pillar and the rocker beam, thereby helping to improve the collision safety of the entire vehicle.

[0033] Furthermore, the connector is integrally molded, with a pillar-connecting portion for attachment to the vehicle body pillar and a sill-connecting portion for attachment to the sill beam. This integral molding not only ensures the connector's structural strength but also facilitates the formation of an integral mounting groove with the A-pillar body. The intermediate connecting portion is overlapped and fixed to the top of the sill beam, enhancing the connection strength between the connector and the sill beam. A receiving groove is formed in the body connecting portion, allowing the A-pillar to partially fit within the groove, facilitating the connection between the connector and the A-pillar and increasing the reliability of the connection.

[0034] Secondly, the provision of a connecting boss on the threshold connection facilitates connection to the front floor beam and increases the reliability of the connection between the connector and the front floor beam. The provision of a connecting groove on the connecting boss further facilitates the connection between the front floor beam and the connector, and improves the reliability of the connection between the two. The provision of a reinforcing rib connected to the connecting boss increases the structural strength of the connecting boss, thereby further ensuring the stability of the connection between the front floor beam and the connecting boss.

[0035] The connectors are made of one-piece aluminum alloy casting, which facilitates their fabrication and leverages the low weight and high strength of cast aluminum, contributing to lightweighting while maintaining their inherent structural strength. Riveted connections between the main body connector and the A-pillar, the sill connector, and the intermediate connector and sill beam ensure effective connections while facilitating operation and reducing costs.

[0036] Furthermore, the A-pillar comprises an interlocking A-pillar inner panel and an A-pillar reinforcement plate, and a lower A-pillar reinforcement is positioned within the A-pillar, with the bottom of the lower A-pillar reinforcement positioned adjacent to the sill beam. This further increases the rigidity of the lower A-pillar and the connection between the A-pillar and the sill beam. The A-pillar inner panel and reinforcement plate are constructed of carbon fiber composite material, contributing to the lightweight design and styling of the A-pillar itself while also ensuring its structural strength. The lower A-pillar reinforcement is constructed of aluminum, further reducing its weight while ensuring its structural strength.

[0037] By connecting the A-pillar lower reinforcement, the A-pillar body, and the upper portion of the connector, the overall rigidity of the A-pillar base is increased, the structural stability of the resulting mounting slot is enhanced, and the connection between the A-pillar and the rocker beam is ensured to be reliable. Connecting the A-pillar lower reinforcement, the A-pillar body, the connector, and the dash lower cross member increases the reliability of the connection between the A-pillar and dash lower cross member, thereby enhancing the stability of the dash lower cross member within the vehicle body and the transfer of collision forces between the A-pillar and dash lower cross member.

[0038] Another object of the present disclosure is to provide a vehicle having the vehicle body structure as described above.

[0039] The vehicle disclosed in the present invention has the same beneficial effects as the above-mentioned vehicle body structure, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings, which constitute part of this disclosure, are used to provide a further understanding of the disclosure. The exemplary embodiments of the disclosure and their descriptions are used to explain the disclosure and do not constitute an improper limitation of the disclosure. In the accompanying drawings:

[0041] FIG1 is a schematic diagram of a vehicle body structure according to an embodiment of the present disclosure;

[0042] FIG2 is an enlarged schematic diagram of a part of FIG1 ;

[0043] FIG3 is a schematic diagram of the structure shown in FIG1 from another perspective;

[0044] FIG4 is a schematic diagram of the structure of the mounting slot according to an embodiment of the present disclosure;

[0045] FIG5 is a schematic structural diagram of a connector according to an embodiment of the present disclosure;

[0046] FIG6 is a schematic diagram of the structure shown in FIG5 from another perspective;

[0047] FIG7 is a schematic diagram of the structure shown in FIG5 from another perspective;

[0048] FIG8 is a schematic diagram of the structure of the A-pillar body according to an embodiment of the present disclosure;

[0049] FIG9 is a schematic diagram of the arrangement of the A-pillar lower reinforcement according to an embodiment of the present disclosure;

[0050] FIG10 is a schematic structural diagram of an A-pillar lower reinforcement according to an embodiment of the present disclosure;

[0051] FIG11 is a schematic diagram of the connection between the front lower cross member and the A-pillar according to an embodiment of the present disclosure;

[0052] Description of reference numerals:

[0053] 1. Door sill beam; 2. A-pillar; 3. Front floor cross member; 4. Rivet; 5. Front panel lower cross member;

[0054] 21. A-pillar body; 211. A-pillar inner panel; 212. A-pillar reinforcement plate; 21a. Through hole; 22. Connector; 221. Pillar connection portion; 2211. Connection flange; 2212. Connection through hole; 222. Door sill connection portion; 223. Intermediate connection portion; 224. Connection boss; 224a. Connection groove; 225. Reinforcement rib; 22a. Accommodation groove; 23. A-pillar lower section reinforcement;

[0055] M, inner removal area; N, outer removal area; G, part of the A-pillar embedded in the receiving groove; k, installation groove. DETAILED DESCRIPTION

[0056] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0057] In the description of this disclosure, it should be noted that if terms such as "upper," "lower," "inner," and "outer" appear to indicate orientation or positional relationships, these are based on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this disclosure and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. Furthermore, if terms such as "first" and "second" appear, they are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0058] Furthermore, in the description of this disclosure, unless otherwise explicitly defined, the terms "mounted," "connected," "connect," and "connector" should be interpreted broadly. For example, these terms can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will appreciate the specific meanings of these terms in this disclosure based on the specific circumstances.

[0059] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Example 1

[0060] This embodiment relates to a vehicle body structure, which can increase the connection stiffness between the root of the A-pillar 2 and the rocker beam 1, and can increase the collision force transmission capacity between the A-pillar 2 and the rocker beam, thereby helping to improve the collision safety of the entire vehicle.

[0061] In terms of overall structure, as shown in FIG. 1 to FIG. 4 , 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.

[0062] Among them, the A-pillar 2 includes an A-pillar body 21 and a connecting member 22 connected to the bottom of the A-pillar body 21. Along the left and right direction of the vehicle, the connecting member 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 member 22 and the A-pillar body 21. The door sill beam 1 is located in the installation groove k and is connected to the A-pillar body 21 and the connecting member 22.

[0063] At this time, as set above, by setting a connecting member 22 on one side of the root of the A-pillar 2, a mounting groove k is formed between the connecting member 22 and the A-pillar body 21, and the sill beam 1 is located in the mounting groove k and connected to the A-pillar body 21 and the connecting member 22. This embodiment uses the A-pillar body 21 and the connecting member 22 to hold the sill beam 1 from both sides, as well as the connection between the A-pillar body 21 and the connecting member 22 and the sill beam 1, to increase the connection stiffness between the root of the A-pillar 2 and the sill beam 1, thereby achieving the effect of increasing the collision force transmission capacity between the A-pillar 2 and the sill beam 1.

[0064] Based on the overall introduction above, specifically, still referring to the mounting groove k shown in FIG4 , which is formed by the A-pillar body 21 and the connecting member 22 of this 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 sill 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 sill beam 1, the mounting groove k that clamps the sill beam 1 is formed.

[0065] Of course, in addition to the above-described molding method, other preparation processes can also be used to enclose and form the above-mentioned installation groove k, and the rocker beam 1 can be disposed within the installation groove k. At the same time, it should be noted that in addition to the preferred arrangement of positioning the connector 22 on the inner side of the A-pillar body 21, in specific implementations, depending on design requirements, positioning the connector 22 on the outer side of the A-pillar body 21 in the left-right direction of the vehicle, that is, on the side of the A-pillar body 21 facing outward from the vehicle, is also possible.

[0066] In this embodiment, as shown in conjunction with Figures 5 to 7, as a preferred embodiment, in specific implementation, the connecting member 22 can be integrally formed, and structurally, the connecting member 22 also includes a main connecting portion 221, an intermediate connecting portion 223, and a sill connecting portion 222, which are sequentially connected from top to bottom. The main connecting portion 221 is overlapped and fixedly connected to the A-pillar body 21, and the sill connecting portion 222 is formed with the bottom end of the A-pillar body 21 to form a mounting groove k. The sill connecting portion 222 is also overlapped and fixedly connected to the sill beam 1.

[0067] 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 using the one-piece molding method, but also can use the connection between the root of the A-pillar body 21 and the sill beam 1 to further increase the overall rigidity 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.

[0068] As a preferred embodiment, still as shown in FIG2 , during specific implementation, the intermediate connecting portion 223 can also be overlapped and fixed to the top of the sill beam 1. In this way, the overlapped and fixed intermediate connecting portion 223 to the top of the sill beam 1 not only increases the connection strength between the connecting member 22 and the sill beam 1, but also helps to improve the stability of the sill beam 1 in the installation groove k, and facilitates the connection between the vehicle body side structure formed by the connecting member 22 and the sill beam 1 and the vehicle body cross member structure such as the front floor cross member 3.

[0069] Referring again to FIG. 7 , as a preferred embodiment, a receiving groove 22a is formed on the body connecting portion 221. As shown in FIG. 8 , the portion designated by G on the A-pillar body 21 is embedded in the receiving groove 22a. Thus, by forming the receiving groove 22a on the body connecting portion 221 and allowing the A-pillar body 21 to partially embed within the receiving groove 22a, it can be understood that this facilitates the connection between the connector 22 and the A-pillar body 21 and also increases the reliability of the connection between the connector 22 and the A-pillar body 21.

[0070] In this embodiment, as shown in FIG5 , as a preferred embodiment, a connecting flange 2211 and a connecting hole 2212 are also provided on the side of the body connecting portion 221 facing the front of the vehicle. The connecting flange 2211 is overlapped and fixed to the A-pillar body 21 as shown in FIG4 , and the connecting hole 2212 is used to allow a connecting component connected to the A-pillar body 21 to pass through.

[0071] At this time, by providing a connecting flange 2211 and a connecting through-hole 2212 on the side of the main connecting part 221 facing the front of the vehicle, it can be understood that it can fully utilize the connecting member 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 member 22, so as to enhance the transmission effect of the collision force at the A-pillar 2.

[0072] It is worth noting that, in the vehicle body, the vehicle body structure in front of the A-pillar 2 can be, for example, the dash lower cross member 5 described below, and in addition to the dash lower cross member 5, it can also include further structures such as a torsion box, and the aforementioned connecting components can be, for example, bolts. Thus, components such as the dash lower cross member 5 located in front of the A-pillar 2 can be connected to the A-pillar 2 via a screw connection, which passes through the connecting hole 2212 and the through hole 21a of the A-pillar body 21 to connect to the A-pillar 2.

[0073] In this embodiment, as shown in Figures 5 and 6 , as a preferred implementation, and based on the connector 22 being located inside the A-pillar body 21, a connecting boss 224 is provided on the rocker connecting portion 222 to connect with the front floor cross member 3 in the vehicle body. Providing the connecting boss 224 on the rocker connecting portion 222 facilitates connection with the front floor cross member 3 and increases the reliability of the connection between the connector 22 and the front floor cross member 3.

[0074] In a specific implementation, preferably, a connecting groove 224a may be further formed on the connecting boss 224, and a portion of the end portion of the front floor cross member 3 is embedded in the connecting groove 224a and then connected to the connecting member 22. It can be understood that the provision of the connecting groove 224a on the connecting boss 224 can further facilitate the connection operation between the front floor cross member 3 and the connecting member 22, and increase the reliability of the connection between the two.

[0075] It is worth noting that, as still shown in Figures 1 and 2, except for the portion embedded in the connecting groove 224a, 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.

[0076] Furthermore, based on the aforementioned arrangement of the connecting boss 224, as a preferred embodiment, this embodiment may also include a reinforcing rib 225 connected to the connecting boss 224 on the door sill connecting portion 222. Thus, by providing the reinforcing rib 225 connected to the connecting boss 224, the structural strength of the connecting boss 224 can be increased by the reinforcing rib 225, thereby better ensuring the stability of the connection of the front floor cross member 3 to the connecting boss 224 and facilitating the transmission and dispersion of collision forces from the connector 22 to the front floor cross member 3.

[0077] In specific implementation, the above-mentioned reinforcing ribs 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 above-mentioned reinforcing ribs 225 can also be arranged in multiple rows to ensure the setting effect.

[0078] In this embodiment, as a preferred implementation form, in specific implementation, the main body connecting portion 221 of the connector 22 and the A-pillar main body 21, as well as the sill connecting portion 222 and the intermediate connecting portion 223 and the sill beam 1 can be connected by, for example, rivets 4. In this case, the main body connecting portion 221 and the A-pillar main body 21, as well as the sill connecting portion 222 and the intermediate connecting portion 223 and the sill beam 1, are connected by rivets 4. It can be understood that this ensures the connection between the connector 22 and the A-pillar main body 21 and the sill beam 1, while also facilitating the connection operation and helping to reduce connection costs.

[0079] It should be noted that, in addition to using rivets 4 for connection, in specific implementation, the connecting member 22 of this embodiment can also be connected to the A-pillar body 21 and the door sill beam 1 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.

[0080] In this embodiment, the integrally formed connector 22 is preferably cast from an aluminum alloy. This facilitates the manufacture of the connector 22 and utilizes the low weight and high strength of cast aluminum, thereby facilitating the lightweighting of the connector 22 and ensuring the structural strength of the connector 22.

[0081] 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 conducive to the lightweighting of the threshold beam 1 while ensuring the structural strength of the threshold beam 1.

[0082] Continuing with Figures 4 and 8 , and in conjunction with Figure 9 , as a preferred embodiment, the A-pillar body 21 of this embodiment may structurally comprise, for example, an A-pillar inner panel 211 and an A-pillar reinforcement panel 212 that are interlocked and connected. Furthermore, an A-pillar lower section reinforcement 23 is disposed within the space enclosed by the A-pillar inner panel 211 and the A-pillar reinforcement panel 212, i.e., within the A-pillar 2. The bottom of the A-pillar lower section reinforcement 23 is disposed in contact with the sill beam 1 in the left-right direction of the vehicle and is also connected to the sill beam 1.

[0083] At this point, the bottom of the aforementioned A-pillar lower reinforcement 23 is connected to the sill beam 1, meaning their projections in the left-right direction of the vehicle at least partially overlap. Furthermore, it can be understood that by having the A-pillar body 21 comprise a snap-together A-pillar inner panel 211 and A-pillar reinforcement plate 212, installing the A-pillar lower reinforcement 23 within the A-pillar 2, and also connecting the bottom of the A-pillar lower reinforcement 23 to the sill beam 1, this not only further increases the rigidity of the lower portion of the A-pillar 2, but also allows the A-pillar lower reinforcement 23 to tighten against the sill beam 1, further enhancing the connection rigidity between the A-pillar 2 and the sill beam 1.

[0084] In this embodiment, as a preferred implementation, the A-pillar inner panel 211 and the A-pillar reinforcement panel 212 may be made of, for example, carbon fiber composite materials. By making the A-pillar inner panel 211 and the A-pillar reinforcement panel 212 of carbon fiber composite materials, it is understood that the advantages of carbon fiber structures, such as low weight, high strength, and ease of design, can be utilized to facilitate the lightweight and styling design of the A-pillar 2 itself, while also ensuring the structural strength of the A-pillar 2.

[0085] It should be noted that when the A-pillar inner panel 211 and the A-pillar reinforcement panel 212 are made of carbon fiber composite material, they can be bonded together, as well as to the rocker beam 1, using structural adhesive. Furthermore, in addition to being made of carbon fiber composite material, the A-pillar inner panel 211 and the A-pillar reinforcement panel 212 can also be constructed using conventional stamped sheet metal structures.

[0086] As a preferred embodiment, in this embodiment, the A-pillar lower reinforcement 23 located within the A-pillar 2 can be made of, for example, an aluminum profile. Furthermore, using an aluminum profile can reduce the weight of the A-pillar lower reinforcement 23 while ensuring its structural strength. In practice, the A-pillar lower reinforcement 23 is typically connected to the sill beam 1 using screws or rivets through the A-pillar inner panel 211.

[0087] When the A-pillar lower reinforcement 23 is made of aluminum, as shown in FIG10 , to accommodate the placement requirements at the bottom of the A-pillar 2, the locations indicated by the symbols M and N on the inner and outer sides of the A-pillar lower reinforcement 23 can be removed through a machining process, for example, after the A-pillar lower reinforcement 23 is extruded. This not only facilitates the placement of the A-pillar lower reinforcement 23 within the A-pillar 2, but also facilitates the connection between the A-pillar lower reinforcement 23 and the rocker beam 1.

[0088] Furthermore, when the A-pillar 2 is provided with the A-pillar lower reinforcement 23, the vehicle body structure, such as the dash lower cross member 5 located in front of the A-pillar 2, can be directly connected to the A-pillar lower reinforcement 23 via the connecting holes 2212 and through-holes 21a. This not only facilitates forming connecting structures, such as threaded holes, on the A-pillar 2, but also ensures the stability of the connection between the A-pillar 2 and the surrounding structure.

[0089] In this embodiment, as a preferred implementation, based on the aforementioned arrangement of the A-pillar lower reinforcement 23, during specific implementation, the A-pillar lower reinforcement 23, the A-pillar body 21, and the upper portion of the connector 22 can also be connected together via a first connecting structure. In this case, the upper portion of the connector 22 is also the aforementioned body connecting portion 221, and the aforementioned first connecting structure can still be, for example, the rivet 4 connecting the body connecting portion 221 to the A-pillar body 21, except that the rivet 4 now passes through the A-pillar inner panel 211 and connects to the A-pillar lower reinforcement 23.

[0090] 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 base 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 rocker beam 1.

[0091] In this embodiment, as previously mentioned and shown in FIG11 , a dash lower cross member 5 may be disposed in front of the A-pillar 2. Furthermore, the A-pillar lower reinforcement 23, the A-pillar body 21, the connector 22, and the dash lower cross member 5 are connected together via a second connection structure. This connection of the A-pillar lower reinforcement 23, the A-pillar body 21, the connector 22, and the dash lower cross member 5 enhances the reliability of the connection between the A-pillar 2 and the dash lower cross member 5, improving the stability of the dash lower cross member 5 within the vehicle body and the effective transmission of collision forces between the A-pillar 2 and the dash lower cross member 5.

[0092] It is worth noting that, in a specific implementation, the second connecting structure can be implemented by the aforementioned connecting component provided through the connecting hole 2212 and the through hole 21a. Specifically, the through hole 21a is located on the A-pillar reinforcement plate 212. Preferably, a plurality of second connecting structures can be provided at intervals to ensure a reliable connection between the front lower cross member 5 and the A-pillar 2.

[0093] The vehicle body structure of this embodiment is provided with a connector 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 arrangement of the connector 22. At the same time, the sill beam 1 is also located in the mounting groove k and connected to the A-pillar body 21 and the connector 22. In addition, an A-pillar lower section reinforcement 23 is provided in the A-pillar body 21, which can enable the sill beam 1 to be tightly held and fixed in the A-pillar 2. This 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 1, thereby improving the collision safety of the entire vehicle and having good practicality. Example 2

[0094] This embodiment relates to a vehicle having the vehicle body structure in the first embodiment.

[0095] 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 rocker beam 1, and can also increase the collision force transmission capacity between the A-pillar 2 and the rocker beam 1, which is beneficial to improving the collision safety of the entire vehicle and has good practicality.

[0096] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A vehicle body structure, characterized in that: 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) being located on one side of the A-pillar body (21) along the left-right direction of the vehicle, and a mounting groove (k) is formed between the connecting member (22) and the A-pillar body (21); The door sill 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, characterized in that: The mounting groove (k) is a groove structure located at the bottom end of the A-pillar (2), with the front, rear and bottom sides open; When forming the installation groove (k), the threshold beam (1) is 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, the connecting member (22) is connected and fixed to the threshold beam (1), thereby forming the installation groove (k) that clamps and holds the threshold beam (1).

3. The vehicle body structure according to claim 1, characterized in that: 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).

4. The vehicle body structure according to claim 3, characterized in that: 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).

5. The vehicle body structure according to claim 3, characterized in that: 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 cross beam (3) is provided on the door sill connecting portion (222).

6. The vehicle body structure according to claim 5, characterized in that: 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).

7. The vehicle body structure according to claim 6, characterized in that: The end of the front floor beam (3), except for the end portion, is overlapped and fixedly connected to the middle connecting portion (223) in the connecting member (22); A connecting flange (2211) is provided on the side of the body connecting portion (221) facing the front of the vehicle, and the connecting flange (2211) is overlapped and fixed on the A-pillar body (21).

8. The vehicle body structure according to claim 3, characterized in that: The connecting piece (22) is formed by integral casting of aluminum alloy; and / or, The body connection portion (221) and the A-pillar body (21), as well as the sill connection portion (222) and the sill beam (1) are connected via rivets (4).

9. The vehicle body structure according to any one of claims 1 to 8, characterized in that: The A-pillar body (21) comprises an A-pillar inner plate (211) and an A-pillar reinforcement plate (212) that are buckled together, and an A-pillar lower section reinforcement member (23) is provided in a space formed 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 vehicle, and the bottom of the A-pillar lower section reinforcement (23) is connected to the door sill beam (1) together.

10. The vehicle body structure according to claim 9, characterized in that: 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.

11. The vehicle body structure according to claim 9, characterized in that: 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.

12. The vehicle body structure according to claim 9, characterized in that: A front panel 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 panel lower cross beam (5) are connected together via a second connecting structure.

13. The vehicle body structure according to claim 12, characterized in that: The second connection structure adopts the aforementioned connection component which is arranged through the connection via hole (2112) and the through hole (21a); The connecting through hole (2112) is located on a side of the body connecting portion (221) in the connecting member (22) facing the front of the vehicle, and the through hole (21a) is located on the A-pillar reinforcement plate (212).

14. The vehicle body structure according to claim 9, characterized in that: The threshold beam (1) is made of extruded aluminum profile.

15. A vehicle, characterized in that: The vehicle has the vehicle body structure according to any one of claims 1 to 14.

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