Vehicle body structure and vehicle

Abstract

The application belongs to the technical field of automobile frame, and relates to a vehicle body structure and a vehicle. The vehicle body structure comprises a tray front cross beam, a left wheel cover inner plate reinforcing plate, a right wheel cover inner plate reinforcing plate and a rear floor upper cross beam, the left wheel cover inner plate reinforcing plate is connected between a first end of the rear floor upper cross beam and a first end of the tray front cross beam, and the right wheel cover inner plate reinforcing plate is connected between a second end of the rear floor upper cross beam and a second end of the tray front cross beam. The tray front cross beam, the left wheel cover inner plate reinforcing plate, the right wheel cover inner plate reinforcing plate and the rear floor upper cross beam of the vehicle body structure are connected to form a closed ring-shaped force transmission path, which can greatly improve the torsional stiffness and torsional mode of the vehicle body, meet the high torsional stiffness requirement of the vehicle body, release a large amount of luggage compartment space and simplify the structure design.

Description

Technical Field

[0001] This invention belongs to the field of automotive frame technology, and in particular relates to a vehicle body structure and a vehicle. Background Technology

[0002] With the development of vehicle electrification and intelligence, consumers have higher requirements for vehicle handling, comfort, NVH performance, and battery range. Closely related to these are vehicle body torsional stiffness and weight. When a car travels on bumpy roads, insufficient torsional stiffness can lead to significant torsional deformation, causing friction between opening and closing components and the body, resulting in abnormal noises, affecting product lifespan, and reducing passenger comfort. Insufficient body stiffness also makes the vehicle more prone to resonance, impacting NVH performance. Meanwhile, good body rigidity is fundamental to vehicle handling stability. Vehicles with high torsional stiffness offer excellent driving performance, superior handling, and better response to driver input. Vehicles with high torsional stiffness also have better weight reduction, resulting in a lighter body and longer battery range.

[0003] Currently, the main methods to improve the torsional stiffness of a car body are to optimize the cross-section of the force transmission path and the joints. However, for passenger cars, it is difficult to meet the requirements for high torsional stiffness. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to address the technical problem that existing methods for improving the torsional stiffness of a vehicle body cannot meet the requirements for high torsional stiffness of the vehicle body, and to provide a vehicle body structure and a vehicle.

[0005] To solve the above-mentioned technical problems, on the one hand, embodiments of the present invention provide a vehicle body structure, including a front crossbeam of the shelf, a reinforcing plate of the inner panel of the left wheel arch, a reinforcing plate of the inner panel of the right wheel arch, and a crossbeam of the rear floor;

[0006] The left wheel cover inner panel reinforcement plate is connected between the first end of the crossbeam on the rear floor and the first end of the front crossbeam of the shelf, and the right wheel cover inner panel reinforcement plate is connected between the second end of the crossbeam on the rear floor and the second end of the front crossbeam of the shelf.

[0007] According to the vehicle body structure of this invention, the front crossbeam of the cargo shelf, the reinforcing plate of the left wheel arch inner panel, the reinforcing plate of the right wheel arch inner panel, and the crossbeam of the rear floor are connected to form a closed annular force transmission path. This vehicle body structure can greatly improve the torsional stiffness and torsional mode of the vehicle body, meet the high torsional stiffness requirements of the vehicle body, and also free up a lot of luggage space and simplify the structural design.

[0008] Optionally, the vehicle body structure also includes a rear roof crossbeam, a left wheel arch reinforcement plate, a right wheel arch reinforcement plate, a left sill reinforcement plate, a right sill reinforcement plate, and a front center floor connecting plate;

[0009] The rear top crossbeam is connected between the upper end of the left wheel arch outer reinforcing plate and the upper end of the right wheel arch outer reinforcing plate. The lower end of the left wheel arch outer reinforcing plate is connected to the left sill reinforcing plate. The lower end of the right wheel arch outer reinforcing plate is connected to the right sill reinforcing plate. The front center floor connecting plate is connected between the left sill reinforcing plate and the right sill reinforcing plate.

[0010] The outer reinforcing plate of the left wheel cover is connected to the first end of the front crossbeam of the shelf, and the outer reinforcing plate of the right wheel cover is connected to the second end of the front crossbeam of the shelf.

[0011] Optionally, the vehicle body structure further includes a left connecting plate and a right connecting plate of the front crossbeam of the shelf, wherein the left connecting plate and the right connecting plate of the front crossbeam of the shelf are spaced apart along the width direction of the vehicle body, the first end of the front crossbeam of the shelf is connected to the left connecting plate of the front crossbeam of the shelf, and the second end of the front crossbeam of the shelf is connected to the right connecting plate of the front crossbeam of the shelf;

[0012] The left wheel cover inner plate reinforcing plate is connected between the first end of the crossbeam on the rear floor and the left connecting plate of the front crossbeam of the shelf, and the right wheel cover inner plate reinforcing plate is connected between the second end of the crossbeam on the rear floor and the right connecting plate of the front crossbeam of the shelf.

[0013] Optionally, the vehicle body structure further includes a left front crossbeam connector and a right front crossbeam connector. The left front crossbeam connector is connected between the left front crossbeam connector plate of the shelf and the inner reinforcing plate of the left wheel arch, and the right front crossbeam connector is connected between the right front crossbeam connector plate of the shelf and the inner reinforcing plate of the right wheel arch.

[0014] Optionally, the left wheel arch outer reinforcing plate includes an upper left outer reinforcing plate and a lower left outer reinforcing plate. The upper end of the upper left outer reinforcing plate is connected to the first end of the rear top crossbeam. The lower end of the upper left outer reinforcing plate is connected to the upper end of the lower left outer reinforcing plate. The lower end of the lower left outer reinforcing plate is connected to the left sill reinforcing plate. The upper left outer reinforcing plate is connected to the left connecting piece of the front crossbeam.

[0015] The right wheel arch outer reinforcing plate includes an upper right outer reinforcing plate and a lower right outer reinforcing plate. The upper end of the upper right outer reinforcing plate is connected to the second end of the rear top crossbeam. The lower end of the upper right outer reinforcing plate is connected to the upper end of the lower right outer reinforcing plate. The lower end of the lower right outer reinforcing plate is connected to the right sill reinforcing plate. The upper right outer reinforcing plate is connected to the right connecting piece of the front crossbeam.

[0016] Optionally, the vehicle body structure further includes a left connecting plate for the rear floor crossbeam and a right connecting plate for the rear floor crossbeam, wherein the first end of the rear floor crossbeam is connected to the left connecting plate for the rear floor crossbeam, and the second end of the rear floor crossbeam is connected to the right connecting plate for the rear floor crossbeam.

[0017] The lower end of the inner reinforcing plate of the left wheel cover is connected to the left connecting plate of the crossbeam on the rear floor, and the lower end of the inner reinforcing plate of the right wheel cover is connected to the right connecting plate of the crossbeam on the rear floor.

[0018] Optionally, the vehicle body structure further includes a sealing plate, the upper side of which is connected to the front crossbeam of the shelf, and the lower side of which is connected to the crossbeam of the rear floor.

[0019] The sealing plate has reinforcing ribs formed in an upward-opening "V" shape.

[0020] Optionally, the reinforcing rib includes a first reinforcing segment, a second reinforcing segment, and a third reinforcing segment. The first reinforcing segment and the second reinforcing segment extend along the height direction of the vehicle and are spaced apart along the width direction of the vehicle. The third reinforcing segment extends along the width direction of the vehicle, and the lower ends of the first reinforcing segment and the second reinforcing segment are connected to the third reinforcing segment.

[0021] Optionally, both the first reinforcing segment and the second reinforcing segment are provided with a first through hole, and a second through hole is provided between the first reinforcing segment and the second reinforcing segment.

[0022] Optionally, the vehicle body structure further includes a left wheel arch inner panel and a right wheel arch inner panel, wherein a left wheel arch inner panel reinforcing plate is installed on the side of the left wheel arch inner panel facing the right wheel arch inner panel, and a right wheel arch inner panel reinforcing plate is installed on the side of the right wheel arch inner panel facing the left wheel arch inner panel;

[0023] The vehicle body structure also includes a left connector and a right connector. The left connector is installed on the side of the sealing plate near the inner plate of the left wheel arch. The left connector is connected to the front crossbeam of the shelf near the first end and the inner plate of the left wheel arch.

[0024] The right connector is installed on the side of the sealing plate near the inner plate of the right wheel cover. The right connector is connected to the second end of the front crossbeam of the shelf and the inner plate of the right wheel cover.

[0025] Optionally, a left inner panel bracket is provided on the inner panel of the left wheel arch, and the left connector includes a first left bracket and a second left bracket. The first left bracket is located above the second left bracket along the height direction of the vehicle body. The first left bracket is connected to the front crossbeam of the shelf near the first end, and the second left bracket is connected to the inner panel of the left wheel arch.

[0026] The right connector includes a first right bracket and a second right bracket. The first right bracket is located above the second right bracket along the vehicle height direction. The first right bracket is connected to the front crossbeam of the shelf near the second end. The second right bracket is connected to the inner panel of the right wheel arch.

[0027] Optionally, the vehicle body structure further includes a rear shock absorber mounting plate, which is fixedly connected to the inner plate of the right wheel arch and the bracket of the right inner plate, and the rear shock absorber mounting plate is connected to the reinforcing plate of the inner plate of the right wheel arch.

[0028] Optionally, the vehicle body structure further includes a sealing plate reinforcement plate, which is mounted on the sealing plate.

[0029] Optionally, the sealing plate has a first mounting point, a second mounting point, and a third mounting point sequentially formed along the width direction of the vehicle body. The first mounting point and the third mounting point are used to install the rear seat backrest adjustment slide rail mechanism, and the second mounting point is used to install the rear seat center armrest mechanism.

[0030] On the other hand, embodiments of the present invention provide a vehicle that includes the above-described body structure. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a vehicle body structure provided in an embodiment of the present invention;

[0032] Figure 2 yes Figure 1 A schematic diagram after removing the sealing plate assembly;

[0033] Figure 3 yes Figure 2 Section at point AA;

[0034] Figure 4 yes Figure 1 A schematic diagram of the first annular force transmission path in the middle;

[0035] Figure 5 yes Figure 1 Another structural diagram;

[0036] Figure 6 for Figure 1 Schematic diagram of the center sealing plate assembly;

[0037] Figure 7 for Figure 6 A schematic diagram of the sealing plate assembly from another angle;

[0038] Figure 8 for Figure 6 Schematic diagram of the center sealing plate;

[0039] Figure 9 for Figure 1 Schematic diagram of the center sealing plate assembly and the inner panel of the right wheel arch;

[0040] Figure 10 for Figure 1 Installation diagram of the middle and rear shock absorber mounting plate.

[0041] The reference numerals in the accompanying drawings are as follows:

[0042] 1. Front crossbeam of the shelf; 2. Left connecting plate of the front crossbeam of the shelf; 3. Right connecting plate of the front crossbeam of the shelf; 4. Reinforcing plate of the inner panel of the left wheel arch; 5. Reinforcing plate of the inner panel of the right wheel arch; 6. Rear floor crossbeam; 7. Rear top crossbeam; 8. Outer reinforcing plate of the left wheel arch; 801. Upper section of the left outer reinforcing plate; 802. Lower section of the left outer reinforcing plate; 9. Outer reinforcing plate of the right wheel arch; 901. Upper section of the right outer reinforcing plate; 902. Lower section of the right outer reinforcing plate; 10. Left sill reinforcing plate; 11. Right sill reinforcing plate; 12. Front center floor connecting plate; 13. Left support plate of the front crossbeam; 14. Left front support plate of the shelf; 15. Right front support plate of the shelf; 16. Left connecting plate of the rear floor crossbeam; 17. Right connecting plate of the rear floor crossbeam. 18. Connecting plate; 20. Shelf connecting plate; 21. Left wheel cover inner plate; 22. Right wheel cover inner plate; 23. Sealing plate assembly; 24. Sealing plate; 25. Reinforcing rib; 26. First reinforcing section; 27. Second reinforcing section; 28. Third reinforcing section; 29. ​​First through hole; 20. Second through hole; 20. First left bracket; 20. Second left bracket; 21. First right bracket; 22. Second right bracket; 22. Sealing plate reinforcing plate; 20. Left inner plate bracket; 21. Right inner plate bracket; 22. Rear shock absorber mounting plate; 23. Front crossbeam left connector; 24. Front crossbeam right connector. Detailed Implementation

[0043] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0044] like Figures 1 to 10 As shown, the vehicle body structure provided in this embodiment of the invention includes a front crossbeam 1 for the shelf, a reinforcing plate 4 for the inner panel of the left wheel arch, a reinforcing plate 5 for the inner panel of the right wheel arch, a crossbeam 6 for the rear floor, a crossbeam 7 for the rear roof, an outer reinforcing plate 8 for the left wheel arch, an outer reinforcing plate 9 for the right wheel arch, a reinforcing plate 10 for the left sill, a reinforcing plate 11 for the right sill, and a connecting plate 12 for the front and middle floor.

[0045] The front crossbeam 1 of the shelf is connected between the left connecting plate 2 and the right connecting plate 3 of the front crossbeam of the shelf. The inner reinforcing plate 4 of the left wheel cover is connected between the first end of the crossbeam 6 on the rear floor and the first end of the front crossbeam 1 of the shelf. The inner reinforcing plate 5 of the right wheel cover is connected between the second end of the crossbeam 6 on the rear floor and the second end of the front crossbeam 1 of the shelf.

[0046] The rear top crossbeam 7 is connected between the upper end of the left wheel arch outer reinforcing plate 8 and the upper end of the right wheel arch outer reinforcing plate 9. The lower end of the left wheel arch outer reinforcing plate 8 is connected to the left sill reinforcing plate 10, and the lower end of the right wheel arch outer reinforcing plate 9 is connected to the right sill reinforcing plate 11. The front center floor connecting plate 12 is connected between the left sill reinforcing plate 10 and the right sill reinforcing plate 11.

[0047] The outer reinforcing plate 8 of the left wheel cover is connected to the first end of the front crossbeam 1 of the shelf, and the outer reinforcing plate 9 of the right wheel cover is connected to the second end of the front crossbeam 1 of the shelf.

[0048] The vehicle body structure provided in this embodiment of the invention connects the front crossbeam 1 of the cargo shelf, the inner reinforcing plate 4 of the left wheel arch, the inner reinforcing plate 5 of the right wheel arch, and the crossbeam 6 of the rear floor to form a closed first annular force transmission path (i.e., a C-ring structure). The rear roof crossbeam 7, the outer reinforcing plate 8 of the left wheel arch, the outer reinforcing plate 9 of the right wheel arch, the reinforcing plate 10 of the left sill, the reinforcing plate 11 of the right sill, and the connecting plate 12 of the front center floor to form a closed second annular force transmission path. The outer reinforcing plate 8 of the left wheel arch is connected to the first end of the front crossbeam 1 of the cargo shelf, and the outer reinforcing plate 9 of the right wheel arch is connected to the second end of the front crossbeam 1 of the cargo shelf, thus connecting the two force transmission paths to form a complete internal and external force transmission path. This vehicle body structure can greatly improve the torsional stiffness and torsional mode of the vehicle body, and can also free up a large amount of luggage space and simplify structural design.

[0049] In one embodiment, such as Figure 4 As shown, the vehicle body structure also includes a left connecting plate 2 and a right connecting plate 3 for the front crossbeam of the shelf. The left connecting plate 2 and the right connecting plate 3 for the front crossbeam of the shelf are spaced apart along the width of the vehicle body. The first end of the front crossbeam 1 of the shelf is connected to the left connecting plate 2, and the second end of the front crossbeam 1 of the shelf is connected to the right connecting plate 3.

[0050] The left wheel cover inner plate reinforcing plate 4 is connected between the first end of the crossbeam 6 on the rear floor and the left connecting plate 2 of the front crossbeam of the shelf, and the right wheel cover inner plate reinforcing plate 5 is connected between the second end of the crossbeam 6 on the rear floor and the right connecting plate 3 of the front crossbeam of the shelf.

[0051] In one embodiment, such as Figure 4 As shown, the vehicle body structure also includes a left front crossbeam connector 26 and a right front crossbeam connector 27. The left front crossbeam connector 26 is connected between the left front crossbeam connector 2 of the shelf and the inner reinforcing plate 4 of the left wheel arch. The right front crossbeam connector 27 is connected between the right front crossbeam connector 3 of the shelf and the inner reinforcing plate 5 of the right wheel arch.

[0052] Specifically, the left connecting member 26 of the front crossbeam includes a left support plate 13, a left front support plate 14 of the shelf, and a left rear support plate of the shelf. The left support plate 13 is installed below the left connecting plate 2 of the front crossbeam of the shelf and is connected to the rear side of the left support plate 13. The upper end of the inner reinforcing plate 4 of the left wheel arch is connected to the left support plate 13. The left front support plate 14 of the shelf is installed below the left connecting plate 2 of the front crossbeam of the shelf, and the upper end of the inner reinforcing plate 4 of the left wheel arch is connected to the left front support plate 14 of the shelf. The left rear support plate of the shelf is installed on the left connecting plate 2 of the front crossbeam of the shelf, and the left rear support plate of the shelf and the left front support plate 14 of the shelf are arranged opposite each other in the front-rear direction of the vehicle body to enhance stability.

[0053] The right connecting member 27 of the front crossbeam includes a right support plate, a right front support plate 15 of the shelf, and a right rear support plate of the shelf. The right support plate is installed below the right connecting plate 3 of the shelf and connects to its rear side. The upper end of the inner reinforcing plate 5 of the right wheel arch connects to the right support plate of the front crossbeam to form a more complete annular force transmission path, effectively improving the torsional rigidity of the vehicle body. The right front support plate 15 of the shelf is installed below the right connecting plate 3 of the shelf, and the upper end of the inner reinforcing plate 5 of the right wheel arch connects to the right front support plate 15 of the shelf. The right rear support plate of the shelf is installed on the right connecting plate 3 of the shelf, and the right rear support plate and the right front support plate 15 of the shelf are arranged opposite each other in the longitudinal direction of the vehicle body to enhance stability.

[0054] The left front support plate 14 of the shelf is located on the side of the left support plate 13 of the front crossbeam away from the right support plate of the front crossbeam along the width direction of the vehicle body, and the right front support plate 15 of the shelf is located on the side of the right support plate of the front crossbeam away from the left support plate 13 of the front crossbeam along the width direction of the vehicle body, so as to form a more complete ring-shaped force transmission path and effectively improve the torsional stiffness of the vehicle body.

[0055] In one embodiment, such as Figure 4 As shown, the vehicle body structure also includes a left connecting plate 16 and a right connecting plate 17 for the rear floor crossbeam. The first end of the rear floor crossbeam 6 is connected to the left connecting plate 16, and the second end of the rear floor crossbeam 6 is connected to the right connecting plate 17.

[0056] The lower end of the inner reinforcement plate 4 of the left wheel arch is connected to the left connecting plate 16 of the crossbeam on the rear floor, and the lower end of the inner reinforcement plate 5 of the right wheel arch is connected to the right connecting plate 17 of the crossbeam on the rear floor, so as to form a more complete ring-shaped force transmission path and effectively improve the torsional rigidity of the vehicle body.

[0057] In one embodiment, such as Figure 4 As shown, the vehicle body structure also includes a shelf connecting plate 18, which is mounted on the left connecting plate 2 of the shelf front crossbeam and is used to install the shelf.

[0058] In one embodiment, such as Figure 3 and Figure 5 As shown, the left wheel arch outer reinforcing plate 8 includes an upper left outer reinforcing plate 801 and a lower left outer reinforcing plate 802. The upper end of the upper left outer reinforcing plate 801 is connected to the first end of the rear top crossbeam 7. The lower end of the upper left outer reinforcing plate 801 is connected to the upper end of the lower left outer reinforcing plate 802. The lower end of the lower left outer reinforcing plate 802 is connected to the left sill reinforcing plate 10. The upper left outer reinforcing plate 801 is connected to the left front support plate 14 and the left rear support plate of the shelf of the left connecting member 26 of the front crossbeam.

[0059] The right wheel arch outer reinforcing plate 9 includes an upper right outer reinforcing plate 901 and a lower right outer reinforcing plate 902. The upper end of the upper right outer reinforcing plate 901 is connected to the second end of the rear top crossbeam 7. The lower end of the upper right outer reinforcing plate 901 is connected to the upper end of the lower right outer reinforcing plate 902. The lower end of the lower right outer reinforcing plate 902 is connected to the right sill reinforcing plate 11. The upper right outer reinforcing plate 901 is connected to the right front support plate 15 and the right rear support plate of the shelf of the right connecting member 27 of the front crossbeam to form a second annular force transmission path, and connects the first annular force transmission path with the second annular force transmission path.

[0060] In one embodiment, such as Figure 1 , Figures 6 to 9 As shown, the vehicle body structure also includes a left wheel arch inner panel 20, a right wheel arch inner panel 21, and a sealing panel assembly 22. The left wheel arch inner panel reinforcing plate 4 is installed on the side of the left wheel arch inner panel 20 facing the right wheel arch inner panel 21, and the right wheel arch inner panel reinforcing plate 5 is installed on the side of the right wheel arch inner panel 21 facing the left wheel arch inner panel 20.

[0061] The sealing plate assembly 22 includes a sealing plate 2201, a left connector, and a right connector. The upper side of the sealing plate 2201 is connected to the front crossbeam 1 of the shelf, the left connecting plate 2 of the front crossbeam of the shelf, and the right connecting plate 3 of the front crossbeam of the shelf. The lower side of the sealing plate 2201 is connected to the rear floor crossbeam 6 by bolts. In addition, to enhance the connection strength, the upper side of the sealing plate 2201 is also connected to the shelf connecting plate 18, the left front support plate 14 of the shelf, and the right front support plate 15 of the shelf, and is fixed along the front-rear direction of the vehicle body. The lower side of the sealing plate 2201 is also connected to the left connecting plate 16 and the right connecting plate 17 of the rear floor crossbeam, and is fixed along the front-rear direction and the height direction of the vehicle body.

[0062] The left connector is installed on the side of the sealing plate 2201 near the inner plate 20 of the left wheel cover. The left connector is connected to the front crossbeam 1 of the shelf near the first end and to the inner plate 20 of the left wheel cover by bolts. The right connector is installed on the side of the sealing plate 2201 near the inner plate 21 of the right wheel cover. The right connector is connected to the front crossbeam 1 of the shelf near the second end and to the inner plate 21 of the right wheel cover by bolts.

[0063] The sealing plate assembly 22 can greatly improve the torsional resistance of the first annular force transmission path. Simultaneously, by tightly connecting the structure on the first annular force transmission path with the right wheel arch inner plate 21 and the left wheel arch inner plate 20, it can effectively improve the overall rigidity of the rear of the vehicle body, thereby significantly increasing the vehicle body's torsional stiffness and torsional mode. In this way, it is not necessary to increase the cross-sectional dimensions of parts on the first annular force transmission path, increase the material thickness of parts, add reinforcing plates, or add new first annular force transmission paths to achieve the high torsional stiffness requirements. This frees up a significant amount of trunk space and allows the applied vehicle to achieve an industry-leading lightweight coefficient.

[0064] In one embodiment, such as Figure 9 As shown, a left inner plate bracket 23 is provided on the left wheel cover inner plate 20, and a right inner plate bracket 24 is provided on the right wheel cover inner plate 21.

[0065] The left connector includes a first left bracket 2202 and a second left bracket 2203. The first left bracket 2202 is located above the second left bracket 2203 along the vehicle height direction. The first left bracket 2202 is connected to the first end of the front crossbeam 1 of the shelf and the left inner panel bracket 23. The second left bracket 2203 is connected to the left wheel cover inner panel 20 to complete the connection between the sealing plate assembly 22 and the first end of the front crossbeam 1 of the shelf and the left wheel cover inner panel 20.

[0066] The right connector includes a first right bracket 2204 and a second right bracket 2205. The first right bracket 2204 is located above the second right bracket 2205 along the vehicle height direction. The first right bracket 2204 is connected to the position near the second end of the front crossbeam 1 of the shelf and the right inner panel bracket 24. The second right bracket 2205 is connected to the right wheel cover inner panel 21 to complete the connection between the sealing plate assembly 22 and the second end of the front crossbeam 1 of the shelf and the right wheel cover inner panel 21.

[0067] In one embodiment, such as Figure 1 As shown, the vehicle body structure also includes a rear shock absorber mounting plate 25. The front end of the rear shock absorber mounting plate 25 is welded to the right wheel arch inner plate 21 and the right inner plate bracket 24 by three layers of weld points. The rear end of the rear shock absorber mounting plate 25 is connected to the shelf front support plate and the right wheel arch inner plate reinforcement plate 5.

[0068] The rear shock absorber mounting plate 25 is connected to the first annular force transmission path by multiple three-layer weld points. Simultaneously, multiple two-layer weld points are designed between the right wheel arch inner plate 21, the rear shock absorber mounting plate 25, the front support plate of the shelf, and the right wheel arch inner plate reinforcing plate 5. This structure of the rear shock absorber mounting plate 25 and the first annular force transmission path forms a complete force transmission path, transferring the force of the rear shock absorber to the first annular force transmission path, effectively improving the dynamic stiffness of the rear shock absorber mounting point.

[0069] In one embodiment, such as Figures 6 to 8 As shown, the sealing plate assembly 22 also includes a sealing plate reinforcing plate 2206, which is installed on the rear side of the sealing plate 2201 along the front-rear direction of the vehicle body.

[0070] The sealing plate 2201 has reinforcing ribs 22011 formed on it to enhance the rigidity of the sealing plate assembly 22.

[0071] Preferably, the reinforcing rib 22011 covers the sealing plate 2201, and the cross-section of the reinforcing rib 22011 is an upward-opening "V" shape. The "V" shaped reinforcing rib 22011 structure on the sealing plate 2201 can effectively improve the torsional resistance of the sealing plate 2201, enhance the rigidity of the sealing plate 2201 itself, and further improve the torsional stiffness of the vehicle body.

[0072] In one embodiment, such as Figure 6 and Figure 8As shown, the reinforcing rib 22011 includes a first reinforcing segment 220111, a second reinforcing segment 220112, and a third reinforcing segment 220113. The first reinforcing segment 220111 and the second reinforcing segment 220112 extend along the height direction of the vehicle and are spaced apart along the width direction of the vehicle. The first reinforcing segment 220111 is connected to or close to the first right bracket 2204, and the second reinforcing segment 220112 is connected to or close to the first left bracket 2202. The third reinforcing segment 220113 extends along the width direction of the vehicle, and the lower ends of the first reinforcing segment 220111 and the second reinforcing segment 220112 are both connected to the third reinforcing segment 220113.

[0073] Furthermore, a first through hole 220114 is provided on both the first reinforcing section 220111 and the second reinforcing section 220112, and a second through hole 220115 is provided between the first reinforcing section 220111 and the second reinforcing section 220112.

[0074] In one embodiment, the sealing plate 2201 and the sealing plate reinforcing plate 2206 can be made of aluminum alloy, achieving a weight reduction of about 40%, which achieves a good lightweight effect while ensuring the performance remains unchanged.

[0075] In one embodiment, the sealing plate 2201 has a first mounting point, a second mounting point, and a third mounting point sequentially formed along the width direction of the vehicle body. Each mounting point corresponds to a through hole. The first mounting point and the third mounting point are respectively set to two first through holes 220114, and the third mounting point is set to a second through hole 220115. The first mounting point and the third mounting point are used to install the rear seat backrest adjustment slide rail mechanism, and the second mounting point is used to install the rear seat center armrest mechanism.

[0076] The sealing plate 2201 integrates the mounting points for the rear seat backrest adjustment slide rail mechanism and the rear center armrest mechanism, eliminating the need for separate bracket structures for these mounting points. This simplifies the structural design, reduces the number of parts, achieves lightweighting, and increases component integration. Furthermore, the double-plate structure formed by the sealing plate 2201 and the sealing plate reinforcing plate 2206 effectively ensures that the rigidity of these mounting points meets requirements.

[0077] The vehicle provided in this embodiment of the invention includes the body structure provided in the above embodiment.

[0078] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vehicle body structure, characterized in that, It includes a front crossbeam of the shelf, a reinforcing plate inside the left wheel cover, a reinforcing plate inside the right wheel cover, and a crossbeam on the rear floor. The reinforcing plate inside the left wheel cover is connected between the first end of the crossbeam on the rear floor and the first end of the front crossbeam of the shelf. The reinforcing plate inside the right wheel cover is connected between the second end of the crossbeam on the rear floor and the second end of the front crossbeam of the shelf. The vehicle body structure also includes a rear roof crossbeam, a left wheel arch reinforcement plate, a right wheel arch reinforcement plate, a left sill reinforcement plate, a right sill reinforcement plate, and a front center floor connecting plate. The rear top crossbeam is connected between the upper end of the left wheel arch outer reinforcing plate and the upper end of the right wheel arch outer reinforcing plate. The lower end of the left wheel arch outer reinforcing plate is connected to the left sill reinforcing plate. The lower end of the right wheel arch outer reinforcing plate is connected to the right sill reinforcing plate. The front center floor connecting plate is connected between the left sill reinforcing plate and the right sill reinforcing plate. The outer reinforcing plate of the left wheel cover is connected to the first end of the front crossbeam of the shelf, and the outer reinforcing plate of the right wheel cover is connected to the second end of the front crossbeam of the shelf.

2. The vehicle body structure according to claim 1, characterized in that, The vehicle body structure also includes a left connecting plate and a right connecting plate of the front crossbeam of the shelf. The left connecting plate and the right connecting plate of the front crossbeam of the shelf are spaced apart along the width of the vehicle body. The first end of the front crossbeam of the shelf is connected to the left connecting plate of the front crossbeam of the shelf, and the second end of the front crossbeam of the shelf is connected to the right connecting plate of the front crossbeam of the shelf. The left wheel cover inner plate reinforcing plate is connected between the first end of the crossbeam on the rear floor and the left connecting plate of the front crossbeam of the shelf, and the right wheel cover inner plate reinforcing plate is connected between the second end of the crossbeam on the rear floor and the right connecting plate of the front crossbeam of the shelf.

3. The vehicle body structure according to claim 2, characterized in that, The vehicle body structure also includes a left front crossbeam connector and a right front crossbeam connector. The left front crossbeam connector is connected between the left front crossbeam connector plate of the shelf and the reinforcing plate of the inner left wheel arch. The right front crossbeam connector is connected between the right front crossbeam connector plate of the shelf and the reinforcing plate of the inner right wheel arch.

4. The vehicle body structure according to claim 3, characterized in that, The left wheel arch outer reinforcing plate includes an upper left outer reinforcing plate and a lower left outer reinforcing plate. The upper end of the upper left outer reinforcing plate is connected to the first end of the rear top crossbeam. The lower end of the upper left outer reinforcing plate is connected to the upper end of the lower left outer reinforcing plate. The lower end of the lower left outer reinforcing plate is connected to the left sill reinforcing plate. The upper left outer reinforcing plate is connected to the left connecting piece of the front crossbeam. The right wheel arch outer reinforcing plate includes an upper right outer reinforcing plate and a lower right outer reinforcing plate. The upper end of the upper right outer reinforcing plate is connected to the second end of the rear top crossbeam. The lower end of the upper right outer reinforcing plate is connected to the upper end of the lower right outer reinforcing plate. The lower end of the lower right outer reinforcing plate is connected to the right sill reinforcing plate. The upper right outer reinforcing plate is connected to the right connecting piece of the front crossbeam.

5. The vehicle body structure according to claim 1, characterized in that, The vehicle body structure also includes a left connecting plate for the rear floor crossbeam and a right connecting plate for the rear floor crossbeam. The first end of the rear floor crossbeam is connected to the left connecting plate for the rear floor crossbeam, and the second end of the rear floor crossbeam is connected to the right connecting plate for the rear floor crossbeam. The lower end of the inner reinforcing plate of the left wheel cover is connected to the left connecting plate of the crossbeam on the rear floor, and the lower end of the inner reinforcing plate of the right wheel cover is connected to the right connecting plate of the crossbeam on the rear floor.

6. The vehicle body structure according to claim 1, characterized in that, The vehicle body structure also includes a sealing plate, the upper side of which is connected to the front crossbeam of the shelf, and the lower side of which is connected to the crossbeam of the rear floor. The sealing plate has reinforcing ribs formed in an upward-opening "V" shape.

7. The vehicle body structure according to claim 6, characterized in that, The reinforcing rib includes a first reinforcing section, a second reinforcing section, and a third reinforcing section. The first and second reinforcing sections extend along the height direction of the vehicle and are spaced apart along the width direction of the vehicle. The third reinforcing section extends along the width direction of the vehicle, and the lower ends of the first and second reinforcing sections are connected to the third reinforcing section.

8. The vehicle body structure according to claim 7, characterized in that, Both the first reinforcing section and the second reinforcing section are provided with a first through hole, and a second through hole is provided between the first reinforcing section and the second reinforcing section.

9. The vehicle body structure according to claim 6, characterized in that, The vehicle body structure also includes a left wheel arch inner panel and a right wheel arch inner panel. The left wheel arch inner panel reinforcing plate is installed on the side of the left wheel arch inner panel facing the right wheel arch inner panel, and the right wheel arch inner panel reinforcing plate is installed on the side of the right wheel arch inner panel facing the left wheel arch inner panel. The vehicle body structure also includes a left connector and a right connector. The left connector is installed on the side of the sealing plate near the inner plate of the left wheel arch. The left connector is connected to the front crossbeam of the shelf near the first end and the inner plate of the left wheel arch. The right connector is installed on the side of the sealing plate near the inner plate of the right wheel cover. The right connector is connected to the second end of the front crossbeam of the shelf and the inner plate of the right wheel cover.

10. The vehicle body structure according to claim 9, characterized in that, The left connector includes a first left bracket and a second left bracket. The first left bracket is located above the second left bracket along the vehicle height direction. The first left bracket is connected to the front crossbeam of the shelf near the first end. The second left bracket is connected to the inner panel of the left wheel arch. The right connector includes a first right bracket and a second right bracket. The first right bracket is located above the second right bracket along the vehicle height direction. The first right bracket is connected to the front crossbeam of the shelf near the second end. The second right bracket is connected to the inner panel of the right wheel arch.

11. The vehicle body structure according to claim 9, characterized in that, The vehicle body structure also includes a rear shock absorber mounting plate, which is fixedly connected to the inner plate of the right wheel arch and the bracket of the right inner plate, and the rear shock absorber mounting plate is connected to the reinforcing plate of the inner plate of the right wheel arch.

12. The vehicle body structure according to claim 6, characterized in that, The vehicle body structure also includes a sealing plate reinforcement plate, which is mounted on the sealing plate.

13. The vehicle body structure according to claim 6, characterized in that, The sealing plate has a first mounting point, a second mounting point, and a third mounting point formed sequentially along the width of the vehicle body. The first mounting point and the third mounting point are used to install the rear seat backrest adjustment slide rail mechanism, and the second mounting point is used to install the rear seat center armrest mechanism.

14. A vehicle, characterized in that, Includes the vehicle body structure as described in any one of claims 1-13.

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