Vehicle body structure and vehicle

Abstract

The utility model provides a vehicle body structure and a vehicle, the vehicle body structure provided by the utility model comprises a front windshield lower cross beam, an A-pillar upper section stiffening beam and a top cover structure which are all made of carbon fibers; the A-column upper-section reinforcing beam comprises side parts arranged on the left side and the right side of the front windshield lower cross beam and a top part arranged between the side parts, the top part is connected with the top cover structure, the side parts are connected with the corresponding sides of the front windshield lower cross beam, and an annular force transmission structure is defined between the A-column upper-section reinforcing beam and the front windshield lower cross beam. According to the vehicle body structure, the front windshield lower cross beam, the A column upper section reinforcing beam and the top cover structure are all made of carbon fibers, the weight of a vehicle body is reduced, the A column upper section reinforcing beam and the front windshield lower cross beam form an annular force transmission structure in a surrounding mode, the force transmission path is optimized, the force transmission smoothness and the torsional rigidity of the whole vehicle are improved, and the vehicle body structure is simple in structure and convenient to use. And the safety performance of the whole vehicle is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, and in particular to a vehicle body structure. Meanwhile, the utility model also relates to a vehicle provided with the vehicle body structure. Background Art

[0002] The traditional front windshield structure of a vehicle body consists of a lower crossbeam of the front windshield, a left side reinforcement plate, an upper inner plate of the left A-pillar, a front crossbeam assembly of the roof, a right side reinforcement plate, an upper inner plate of the right A-pillar, and some small reinforcement parts. However, in actual production, the various components that make up the front windshield structure of the vehicle body are usually sheet metal parts, that is, the front windshield structure of the vehicle body is formed by welding multiple sheet metal parts, resulting in a heavy weight of the front windshield structure and complex lap joints. Moreover, since sheet metal is mostly a thin plate structure with weak rigidity, more molds and fixtures need to be developed, which increases development costs and is not conducive to lightweight and less-component design of the vehicle. In addition, the joints of various components are mostly spot welded, the force transfer transition is not smooth, and the joints are greatly affected by collisions. Utility Model Content

[0003] In view of this, the utility model aims to provide a vehicle body structure to reduce its weight and improve the smoothness of force transmission.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A vehicle body structure, comprising a front windshield lower cross beam, an A-pillar upper reinforcement beam, and a roof structure, all of which are made of carbon fiber;

[0006] The A-pillar upper reinforcement beam includes side portions arranged on the left and right sides of the front windshield lower cross beam, and a top portion arranged between the side portions;

[0007] The top portion is connected to the top cover structure, the side portion is connected to the corresponding side of the lower cross beam of the front windshield, and an annular force transmission structure is formed between the A-pillar upper section reinforcement beam and the lower cross beam of the front windshield.

[0008] Further, the top cover structure comprises a top cover outer plate and a top cover inner plate which are buckled and connected, and the top portion is arranged between the top cover outer plate and the top cover inner plate; and / or,

[0009] A cavity is formed in the A-pillar upper reinforcement beam, and the cavity extends along the length direction of the A-pillar upper reinforcement beam.

[0010] Furthermore, the A-pillar upper reinforcement beam is manufactured by using a carbon fiber autoclave process; and / or,

[0011] A side reinforcement plate is provided on the A-pillar upper reinforcement beam, and a rear end of the side reinforcement plate is overlapped and connected with the top cover outer panel.

[0012] Furthermore, the side reinforcement plate is bent and has a top plate and a side plate. The top plate is arranged on the top of the A-pillar upper reinforcement beam, and the side plate is arranged on the side of the A-pillar upper reinforcement beam facing the outside of the vehicle.

[0013] Furthermore, the bottom of the side plate is provided with a flange folded toward the outside of the vehicle, and the flange is used to install a door sealing strip; and / or,

[0014] A downwardly recessed platform is provided at the front end of the top cover outer plate, and the recessed platform, the top plate body and the top surface of the front windshield lower cross beam constitute the installation surface of the front windshield.

[0015] Further, the top cover outer panel is made by carbon fiber autoclave process, and the top cover inner panel is made by carbon fiber SMC process; and / or,

[0016] The side reinforcement plate is made by using a carbon fiber prepreg process.

[0017] Furthermore, the top cover inner plate is provided with a first convex portion and a second convex portion, and both the first convex portion and the second convex portion protrude toward the top cover outer plate;

[0018] The first raised portion and the second raised portion are arranged at intervals along the front-rear direction of the vehicle, and form a mounting groove extending along the left-right direction of the vehicle, and the top portion is arranged in the mounting groove.

[0019] Furthermore, the cross section of the front windshield lower beam is "V"-shaped and is formed with a groove extending along its length direction;

[0020] A protruding portion is provided at the front end of the A-pillar upper reinforcement beam, the protruding portion protrudes toward one side of the vehicle interior, and the protruding portion is inserted into the groove and connected to the lower cross beam of the front windshield.

[0021] Furthermore, it also includes a front panel, and lower sections of A-pillars connected to left and right sides of the front panel;

[0022] The A-pillar upper section reinforcement beam is bonded to the A-pillar lower section by structural adhesive, and is screwed to the A-pillar lower section in the vertical direction of the vehicle by bolts, and / or the front panel and the A-pillar lower section are integrally formed using carbon fiber.

[0023] Compared with the prior art, the utility model has the following advantages:

[0024] The vehicle body structure described in the utility model is beneficial to reducing the weight of the vehicle body by making the lower cross beam of the front windshield, the upper reinforcement beam of the A-pillar and the top cover structure all made of carbon fiber, and the upper reinforcement beam of the A-pillar and the lower cross beam of the front windshield form an annular force transmission structure. The annular force transmission structure has fewer parts and fewer connecting joints, which can improve the smoothness of force transmission and the torsional rigidity of the whole vehicle, thereby ensuring the safety performance of the whole vehicle.

[0025] In addition, by making the roof structure include a roof outer panel and a roof inner panel, and making the roof part disposed between the roof outer panel and the roof inner panel, the structural strength of the vehicle body structure is improved, and it is convenient to realize a design with fewer parts. In addition, by forming a cavity in the A-pillar upper section reinforcement beam, it is helpful to reduce the weight of the A-pillar upper section reinforcement beam and improve the structural strength of the A-pillar upper section reinforcement beam.

[0026] In addition, by using the carbon fiber autoclave process to manufacture the A-pillar upper reinforcement beam, the production efficiency is high and the quality of the A-pillar upper reinforcement beam is ensured. In addition, by providing a side reinforcement plate on the A-pillar upper reinforcement beam and overlapping and connecting the side reinforcement plate with the roof outer panel, the structural strength of the vehicle body structure and the smoothness of force transmission are further improved.

[0027] Secondly, by making the side reinforcement plate have a top plate body and a side plate body, not only can the structural strength of the side reinforcement plate be improved, but it can also help ensure the connection strength between the side reinforcement plate and the upper reinforcement beam of the A-pillar. By providing a flange at the bottom of the side plate body, the structural strength of the side reinforcement plate can be improved while providing a mounting structure for the door sealing strip, which is convenient for the door sealing strip to be installed on the body. And by providing a sink at the front end of the top cover outer plate, a mounting surface can be provided for the front windshield.

[0028] Furthermore, by providing the first convex part and the second convex part, the structural strength of the top cover inner plate is improved, and the installation groove formed between the first convex part and the second convex part can provide installation space for the top part. And by providing the convex part on the A-pillar upper reinforcement beam and the groove on the front windshield lower crossbeam, and inserting the convex part into the groove, the connection area between the A-pillar upper reinforcement beam and the front windshield lower crossbeam is increased, and the connection strength is ensured.

[0029] Another object of the present invention is to provide a vehicle, wherein the vehicle is provided with the vehicle body structure as described above.

[0030] The vehicle described in the utility model has the same technical effects as the above-mentioned vehicle body structure compared with the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0032] Figure 1 It is a structural schematic diagram of the vehicle body structure according to an embodiment of the utility model;

[0033] Figure 2 It is a partial structural schematic diagram of the vehicle body structure according to an embodiment of the utility model;

[0034] Figure 3 This is a schematic structural diagram of the top cover structure described in an embodiment of the utility model;

[0035] Figure 4 It is a structural schematic diagram of the upper section of the A-pillar and the inner panel of the top cover according to an embodiment of the utility model;

[0036] Figure 5 for Figure 4 Cross-section along the AA direction;

[0037] Figure 6 This is a schematic diagram of the structure of the top cover inner plate according to an embodiment of the utility model;

[0038] Figure 7 It is a schematic structural diagram of the A-pillar upper reinforcement beam and the side panel reinforcement plate according to an embodiment of the utility model;

[0039] Figure 8 The figure is a schematic structural diagram of the lower cross beam of the front windshield according to an embodiment of the utility model.

[0040] Description of reference numerals:

[0041] 1. Lower cross beam of the front windshield; 2. A-pillar upper reinforcement beam; 201. Side part; 202. Top part; 3. Top cover structure; 301. Top cover outer panel; 302. Top cover inner panel; 4. Cavity; 5. Side panel reinforcement plate; 501. Top panel; 502. Side panel; 503. Flanged edge; 6. Sunk platform; 7. First raised part; 8. Second raised part; 9. Mounting groove; 10. Groove; 11. Protruding part; 12. Reinforced protrusion; 13. Mounting hole. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0043] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, 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, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the utility model, it should be noted that the directional words such as "up, down, left, right, front, and back" used in the present embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the automobile. Among them, the up-down direction of the automobile is also the height direction of the automobile, the front-back direction of the automobile is also the length direction of the automobile, and the left-right direction of the automobile is also the width direction of the automobile. In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "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 it can be 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.

[0046] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0047] Embodiment 1

[0048] This embodiment relates to a vehicle body structure, the overall structure of which is as follows: Figure 1 and Figure 2 As shown in , the vehicle body structure includes a front windshield lower cross beam 1, an A-pillar upper section reinforcement beam 2, and a roof structure 3, all of which are made of carbon fiber. The A-pillar upper section reinforcement beam 2 includes side portions 201 arranged on the left and right sides of the front windshield lower cross beam 1, and a top portion 202 arranged between the side portions 201, the top portion 202 is connected to the roof structure 3, the side portion 201 is connected to the corresponding side of the front windshield lower cross beam 1, and an annular force transmission structure is formed between the A-pillar upper section reinforcement beam 2 and the front windshield lower cross beam 1.

[0049] The vehicle body structure of this embodiment is made of carbon fiber, such that the lower cross beam 1 of the front windshield, the upper reinforcement beam 2 of the A-pillar and the top cover structure 3 are all made of carbon fiber, which is beneficial to reducing the weight of the vehicle body, and the upper reinforcement beam 2 of the A-pillar and the lower cross beam 1 of the front windshield form an annular force transmission structure. The annular force transmission structure has fewer parts and fewer connecting joints, which can improve the smoothness of force transmission and the torsional stiffness of the whole vehicle, thereby ensuring the safety performance of the whole vehicle.

[0050] Specifically, the vehicle body structure of this embodiment forms an annular force transmission structure by making the A-pillar upper reinforcement beam 2 and the front windshield lower cross beam 1 surround each other. A part of the force transmitted from the front end of the vehicle body to the vehicle body longitudinal beam can be transmitted to the floor middle channel through the front panel, and then transmitted to the door sill beam through the floor cross beam, and then transmitted backward through the door sill beam. The other part can be transmitted to the front windshield lower cross beam 1 through the front panel, and then transmitted to the fixed roof structure 3 through the A-pillar upper reinforcement beam 2, and then transmitted backward through the roof structure 3, so as to optimize the force transmission path, improve the smoothness of force transmission, and improve the safety of the vehicle body structure.

[0051] Based on the above overall introduction, as a preferred implementation method, Figure 3 and Figure 4 and Figure 5 As shown in , in this embodiment, the roof structure 3 includes a roof outer panel 301 and a roof inner panel 302 that are connected by snapping, and the top portion 202 is arranged between the roof outer panel 301 and the roof inner panel 302. A cavity 4 is formed in the A-pillar upper section reinforcement beam 2, and the cavity 4 extends along the length direction of the A-pillar upper section reinforcement beam 2. By making the roof structure 3 include the roof outer panel 301 and the roof inner panel 302, and making the top portion 202 be arranged between the roof outer panel 301 and the roof inner panel 302, it is beneficial to improve the structural strength of the vehicle body structure and facilitate the realization of a design with fewer parts. In addition, by forming the cavity 4 in the A-pillar upper section reinforcement beam 2, it is beneficial to reduce the weight of the A-pillar upper section reinforcement beam 2 and improve the structural strength of the A-pillar upper section reinforcement beam 2.

[0052] In specific implementation, the A-pillar upper reinforcement beam 2 can be bonded to the top cover outer panel 301 and the top cover inner panel 302 by structural adhesive. It should be noted that in this embodiment, the top cover structure 3 includes the top cover outer panel 301 and the top cover inner panel 302, and the top part 202 is located between the top cover outer panel 301 and the top cover inner panel 302, which is only a preferred implementation. In addition, in other embodiments, the top cover structure 3 can also include only the top cover outer panel 301 or the top cover inner panel 302. In this case, the top part 202 only needs to be connected to the top cover outer panel 301 or the top cover inner panel 302.

[0053] It should also be noted that, in actual implementation, the wall thickness of the A-pillar upper section reinforcement beam 2 can be designed to be unequal. Specifically, the thickness of the A-pillar upper section reinforcement beam 2 close to the outside of the vehicle can be thicker, and the thickness of the A-pillar upper section reinforcement beam 2 close to the inside of the vehicle can be thinner, and the wall thickness of the A-pillar upper section reinforcement beam 2 can be between 3mm and 8mm. In this way, it is convenient to ensure the structural strength of the A-pillar upper section reinforcement beam 2 while facilitating the lightweight design of the vehicle. In addition, in other embodiments, the A-pillar upper section reinforcement beam 2 can also be made into a solid structure, that is, no cavity 4 is formed therein.

[0054] As a preferred implementation, in this embodiment, the A-pillar upper section reinforcement beam 2 is made by using a carbon fiber autoclave process. The A-pillar upper section reinforcement beam 2 is provided with a side reinforcement plate 5, and the rear end of the side reinforcement plate 5 is overlapped and connected with the top cover outer plate 301. By making the A-pillar upper section reinforcement beam 2 by using a carbon fiber autoclave process, the production efficiency is high, and it is easy to ensure the quality of the A-pillar upper section reinforcement beam 2. In addition, by providing the side reinforcement plate 5 on the A-pillar upper section reinforcement beam 2, and making the side reinforcement plate 5 overlapped and connected with the top cover outer plate 301, it is beneficial to further improve the structural strength of the vehicle body structure, and at the same time, it can also improve the smoothness of the transmission of external force to the top cover structure.

[0055] It is worth noting that the A-pillar upper reinforcement beam 2 in this embodiment is made by using the carbon fiber autoclave process, which is only a preferred implementation method. In addition, in other embodiments, the A-pillar upper reinforcement beam 2 can also be made by using other carbon fiber molding processes commonly used in the prior art. In addition, in other embodiments, the side reinforcement plate 5 may not be provided.

[0056] As a preferred example, Figure 7 As shown in , the side reinforcement plate 5 is bent and has a top plate 501 and a side plate 502. The top plate 501 is arranged on the top of the A-pillar upper reinforcement beam 2, and the side plate 502 is arranged on the side of the A-pillar upper reinforcement beam 2 facing the outside of the vehicle. By making the side reinforcement plate 5 have a top plate 501 and a side plate 502, not only the structural strength of the side reinforcement plate 5 can be improved, but also the structural strength of the vehicle body structure can be improved. In specific implementation, the top plate 501 and the side plate 502 can be connected to the A-pillar upper reinforcement beam 2 by structural adhesive to ensure the sealing effect, and can further improve the structural strength of the vehicle body structure.

[0057] As a preferred implementation method, Figure 1 and Figure 7 As shown in the figure, in this embodiment, a flange 503 folded toward the outside of the vehicle is provided at the bottom of the side plate 502, and the flange 503 is used to install the door sealing strip. A downwardly concave platform 6 is provided at the front end of the top cover outer plate 301, and the platform 6, the top plate 501 and the top surface of the front windshield lower cross beam 1 form the installation surface of the front windshield.

[0058] By providing a flange 503 at the bottom of the side plate 502, the structural strength of the side reinforcement plate 5 can be improved while providing a mounting structure for the door sealing strip, which facilitates the installation of the door sealing strip on the vehicle body. And by providing a sink 6 at the front end of the top cover outer panel 301, a mounting surface can be provided for the front windshield. Moreover, in order to improve the installation efficiency of the front windshield, a positioning hole is also provided on the sink 6 to position the front windshield. Of course, in this embodiment, the flange 503 is provided on the side plate 502, and the sink 6 is provided on the top cover outer panel 301, which is only used as a preferred implementation. In other embodiments, it is also possible to choose not to provide the flange 503 or the sink 6.

[0059] As a preferred implementation, in this embodiment, the top cover outer panel 301 is made by a carbon fiber autoclave process, and the top cover inner panel 302 is made by a carbon fiber SMC process. The side reinforcement plate 5 is made by a carbon fiber prepreg process. With such a configuration, the production process is more flexible. Of course, in other embodiments, the top cover outer panel 301, the top cover inner panel 302, and the side reinforcement plate 5 can also be made by other carbon fiber molding processes.

[0060] As a further embodiment, Figure 1 As shown in , the edges of the left and right sides of the roof outer panel 301 are provided with step portions extending along the edges. And the step portion includes a plurality of gradually decreasing steps, wherein the steps in this embodiment are specifically two. In this embodiment, by providing the steps, not only the structural strength of the roof outer edge 301 can be improved, but also the external force of the side portion 201 of the A-pillar upper reinforcement beam 2 can be transmitted along each step, which can further improve the smoothness of force transmission; at the same time, it is also convenient to realize the buckle connection between the roof outer panel 301 and the roof inner panel 302.

[0061] As a preferred example, Figure 6 As shown in , in this embodiment, the top cover inner plate 302 is provided with a first protruding portion 7 and a second protruding portion 8, and the first protruding portion 7 and the second protruding portion 8 both protrude toward the top cover outer plate 301. The first protruding portion 7 and the second protruding portion 8 are arranged at intervals along the front-to-back direction of the vehicle, and a mounting groove 9 extending along the left-to-right direction of the vehicle is formed, and the top portion 202 is arranged in the mounting groove 9. By providing the first protruding portion 7 and the second protruding portion 8, the structural strength of the top cover inner plate 302 is improved, and the mounting groove 9 formed between the first protruding portion 7 and the second protruding portion 8 can provide an installation space for the top portion 202.

[0062] In addition, in order to further improve the structural strength of the top cover inner plate 302, a plurality of cross-arranged reinforcing protrusions 12 are formed on the second raised portion 8. Moreover, in specific implementation, the thickness of each reinforcing protrusion 12 can be set to be different, so as to further facilitate lightweight design while improving the strength and safety of the entire vehicle.

[0063] As a preferred implementation method, Figure 2 and Figure 8 As shown in , in this embodiment, the cross section of the front windshield lower crossbeam 1 is "V"-shaped, and a groove 10 extending along its length direction is formed. The front end of the A-pillar upper reinforcement beam 2 is provided with a protruding portion 11, which protrudes toward the inner side of the vehicle, and the protruding portion 11 is inserted into the groove 10 and connected to the front windshield lower crossbeam 1. In specific implementation, the protruding portion 11 and the front windshield lower crossbeam 1 are bonded by structural adhesive. By providing the protruding portion 11 on the A-pillar upper reinforcement beam 2, and providing the groove 10 on the front windshield lower crossbeam 1, and inserting the protruding portion 11 into the groove 10, it is beneficial to increase the connection area between the A-pillar upper reinforcement beam 2 and the front windshield lower crossbeam 1, and ensure the connection strength.

[0064] The cross section of the front windshield lower beam 1 of this embodiment is in a "V" shape, which can make it lighter and facilitate the lightweight design of the entire vehicle. At this time, in order to ensure the structural strength of the front windshield lower beam 1, such as Figure 8 As shown in the figure, a reinforcing rib is provided in the lower cross beam 1 of the front windshield, and the reinforcing rib is arranged in a plurality of intervals along the length direction of the lower cross beam 1 of the front windshield. In addition, in order to further improve the use effect, the lower cross beam 1 of the front windshield is in an arc shape that bends forward as a whole, thereby improving its structural strength and having a better aesthetic appearance.

[0065] As a preferred embodiment, the vehicle body structure of this embodiment also includes a front panel and lower sections of A-pillars connected to the left and right sides of the front panel. The upper section reinforcement beam 2 of the A-pillar is bonded to the lower section of the A-pillar by structural adhesive, and is screwed to the lower section of the A-pillar in the vertical direction of the vehicle by bolts. The front panel and the lower section of the A-pillar are integrally formed with carbon fiber. In addition, Figure 1 and Figure 4 As shown in , in order to facilitate the connection between the A-pillar upper section reinforcement beam 2 and the A-pillar lower section, a downwardly protruding convex portion is provided at one end of the side portion 201 close to the front of the vehicle. Moreover, the provision of the downwardly protruding portion is also conducive to improving the connection strength between the A-pillar upper section reinforcement beam 2 and the A-pillar lower section.

[0066] It is understandable that the front windshield lower cross beam 1 is connected to the lower section of the A-pillar by bonding and screwing, which is beneficial to improving the connection strength between the front windshield lower cross beam 1 and the lower section of the A-pillar. In addition, the front wall panel and the lower section of the A-pillar are integrally formed with carbon fiber, which is beneficial to improving the structural strength of the front wall panel and the lower section of the A-pillar, and is convenient to reduce the number of parts and facilitate assembly.

[0067] When implementing it, Figure 1 and Figure 2 As shown in , a mounting hole 13 for bolt installation is provided on the A-pillar upper section reinforcement beam 2, and the bolt is installed in the mounting hole 13, and the bolt passes through the A-pillar upper section reinforcement beam 2 and is connected to the A-pillar lower section. Of course, in other embodiments, the A-pillar upper section reinforcement beam 2 and the A-pillar lower section can also be connected only by bonding, or only by bolts. In addition, in other embodiments, the front panel and the A-pillar lower section can also be formed separately.

[0068] The vehicle body structure of this embodiment is made of carbon fiber, including the lower cross beam 1 of the front windshield, the upper reinforcement beam 2 of the A-pillar and the top cover structure 3, and a cavity 4 is formed in the upper reinforcement beam 2 of the A-pillar, which is beneficial to reducing the weight of the vehicle body, and the upper reinforcement beam 2 of the A-pillar and the lower cross beam 1 of the front windshield form an annular force transmission structure, which is beneficial to optimizing the force transmission path, improving the force transmission smoothness and the torsional rigidity of the whole vehicle, and the top cover structure 3 includes a top cover outer panel 301 and a top cover inner panel 302 that are connected by snapping, so that the top part 202 is arranged between the top cover outer panel 301 and the top cover inner panel 302, and a side reinforcement panel 5 is arranged on the upper reinforcement beam 2 of the A-pillar, which is beneficial to improving the structural strength of the vehicle body structure and ensuring the safety performance of the whole vehicle.

[0069] Embodiment 2

[0070] This embodiment relates to a vehicle, which is provided with the vehicle body structure in the first embodiment.

[0071] The vehicle of this embodiment has the same technical effects as the vehicle body structure in the first embodiment compared with the prior art, and will not be described in detail here.

[0072] 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 principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle body structure, characterized in that: It includes a front windshield lower cross beam (1), an A-pillar upper reinforcement beam (2), and a top cover structure (3), all of which are made of carbon fiber; The A-pillar upper reinforcement beam (2) comprises side portions (201) arranged on the left and right sides of the front windshield lower cross beam (1), and a top portion (202) arranged between the side portions (201); The top portion (202) is connected to the top cover structure (3), the side portion (201) is connected to the corresponding side of the lower cross beam (1) of the front windshield, and an annular force transmission structure is formed between the A-pillar upper reinforcement beam (2) and the lower cross beam (1) of the front windshield.

2. The vehicle body structure according to claim 1, characterized in that: The top cover structure (3) comprises a top cover outer plate (301) and a top cover inner plate (302) which are connected by snapping, and the top portion (202) is arranged between the top cover outer plate (301) and the top cover inner plate (302); and / or, A cavity (4) is formed in the A-pillar upper section reinforcement beam (2), and the cavity (4) extends along the length direction of the A-pillar upper section reinforcement beam (2).

3. The vehicle body structure according to claim 2, characterized in that: The A-pillar upper reinforcement beam (2) is manufactured by using a carbon fiber autoclave process; and / or, A side reinforcement plate (5) is provided on the A-pillar upper reinforcement beam (2), and the rear end of the side reinforcement plate (5) is overlapped and connected to the top cover outer plate (301).

4. The vehicle body structure according to claim 3, characterized in that: The side reinforcement plate (5) is bent and comprises a top plate body (501) and a side plate body (502); The top plate (501) is arranged on the top of the A-pillar upper reinforcement beam (2), and the side plate (502) is arranged on the side of the A-pillar upper reinforcement beam (2) facing the outside of the vehicle.

5. The vehicle body structure according to claim 4, characterized in that: The bottom of the side plate (502) is provided with a flange (503) folded toward the outside of the vehicle, and the flange (503) is used to install a door sealing strip; and / or, The front end of the top cover outer plate (301) is provided with a downwardly recessed platform (6), and the platform (6) and the top surface of the top plate (501) and the lower cross beam (1) of the front windshield form the installation surface of the front windshield.

6. The vehicle body structure according to claim 3, characterized in that: The top cover outer plate (301) is made by using a carbon fiber autoclave process, and the top cover inner plate (302) is made by using a carbon fiber SMC process; and / or, The side reinforcement plate (5) is made by using a carbon fiber prepreg process.

7. The vehicle body structure according to claim 2, characterized in that: The top cover inner plate (302) is provided with a first raised portion (7) and a second raised portion (8), and the first raised portion (7) and the second raised portion (8) both protrude toward the top cover outer plate (301); The first raised portion (7) and the second raised portion (8) are arranged at intervals along the front-rear direction of the vehicle, and form a mounting groove (9) extending along the left-right direction of the vehicle, and the top portion (202) is arranged in the mounting groove (9).

8. The vehicle body structure according to claim 1, characterized in that: The cross section of the front windshield lower crossbeam (1) is V-shaped and is formed with a groove (10) extending along its length direction; The front end of the A-pillar upper reinforcement beam (2) is provided with a protruding portion (11), the protruding portion (11) protrudes toward the inside of the vehicle, and the protruding portion (11) is inserted into the groove (10) and connected to the front windshield lower cross beam (1).

9. The vehicle body structure according to any one of claims 1 to 8, characterized in that: Also includes a front panel, and lower sections of A-pillars connected to left and right sides of the front panel; The A-pillar upper section reinforcing beam (2) is bonded to the A-pillar lower section by structural adhesive, and is screwed to the A-pillar lower section in the vertical direction of the vehicle by bolts, and / or the front panel and the A-pillar lower section are integrally formed using carbon fiber.

10. A vehicle, characterized in that: The vehicle is provided with the vehicle body structure according to any one of claims 1 to 9.

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