vehicle

Abstract

A vehicle comprising a rear longitudinal beam assembly (410), a rear wheel cover (451), and a rear wheel cover support rod, wherein the rear wheel cover (451) is connected to the rear longitudinal beam assembly (410), and the rear wheel cover support rod comprises a rear wheel cover rear support rod (452) and a rear wheel cover front support rod I (43l), wherein the rear wheel cover (451) is connected to the rear longitudinal beam assembly (410) by the rear wheel cover rear support rod (452), and the rear wheel cover (451) is connected to the passenger compartment (20) by the rear wheel cover front support rod I (43l). Thus, the collision strength of the vehicle is improved by the hierarchical design of the force transmission path by the rear longitudinal beam assembly (410), the rear wheel cover (451), and the rear wheel cover support rod.

Description

Technical Field

[0001] Cross - reference to Related Applications This application claims the priority of Chinese Patent Application No. 202310459061.3, entitled "Vehicle", filed by BYD Co., Ltd. on April 18, 2023, the entire disclosure of which is incorporated herein by reference.

[0002] Technical Field This application relates to the field of vehicle technology, particularly to vehicles.

Background Art

[0003] In the prior art, the body structure of a sports car is generally in a conventional metal form. Since the body structure is significantly miniaturized, the structural size of the rear part of the body becomes smaller, the collision strength of the body structure decreases, which affects the driving safety of the sports car.

Summary of the Invention

Problems to be Solved by the Invention

[0004] This application intends to solve at least one of the technical problems in the related art to some extent.

Means for Solving the Problems

[0005] Therefore, this application provides a vehicle.

[0006] The vehicle according to the embodiment of this application includes a rear longitudinal beam assembly, a rear wheel cover, the rear wheel cover being connected to the rear longitudinal beam assembly, and a rear wheel cover support rod, the rear wheel cover support rod including a rear wheel cover rear support rod and a rear wheel cover front support rod I, the rear wheel cover being connected to the rear longitudinal beam assembly using the rear wheel cover rear support rod, and the rear wheel cover being connected to the vehicle cabin using the rear wheel cover front support rod I.

[0007] Thus, the hierarchical design of the force transmission path, achieved using the rear longitudinal beam assembly, rear wheel cover, and rear wheel cover support rod, improves the vehicle's crash strength.

[0008] Some additional aspects and advantages of this application are provided in the following description, and some additional aspects and advantages are apparent from the following description or are acquired from practicing this application. [Brief explanation of the drawing]

[0009] [Figure 1] This is a side view of a vehicle according to one embodiment of the present application. [Figure 2] This is a three-dimensional drawing of a vehicle according to one embodiment of this application. [Figure 3] This is a schematic diagram of the power transmission of a first power transmission structure of a vehicle according to one embodiment of this application. [Figure 4] This is a schematic diagram 1 of a vehicle according to one embodiment of the present application. [Figure 5] This is a schematic diagram 2 of a vehicle according to one embodiment of the present application. [Figure 6] This is a schematic diagram of a portion of a vehicle according to one embodiment of the present application. [Figure 7] This is a schematic diagram 1 of one side of a vehicle according to one embodiment of this application. [Figure 8] This is a schematic diagram 2 of one side of a vehicle according to one embodiment of the present application. [Figure 9] This is a schematic diagram of a portion of a vehicle according to one embodiment of this application. [Figure 10] This is a schematic diagram of a portion of a vehicle according to one embodiment of this application. [Figure 11] This is a schematic diagram 1 of the power transmission of a second power transmission structure of a vehicle according to one embodiment of this application. [Figure 12] A partially exploded view of a vehicle according to one embodiment of this application. [Figure 13] This is a schematic diagram of a rear wheel cover for a vehicle according to one embodiment of the present application. [Figure 14] This is a schematic diagram 2 of the power transmission of the second power transmission structure of a vehicle according to one embodiment of this application. [Figure 15] It is a schematic diagram of a rear frame stabilizer bar assembly of a vehicle according to an embodiment of the present application. [Figure 16] It is an exploded view of a rear frame stabilizer bar assembly of a vehicle according to an embodiment of the present application. [Figure 17] It is a schematic diagram of the force transmission of a triangular frame of a vehicle according to an embodiment of the present application. [Figure 18] It is a schematic diagram of a triangular frame of a vehicle according to an embodiment of the present application. [Figure 19] It is an exploded view of a triangular frame of a vehicle according to an embodiment of the present application. [Figure 20] It is a partial schematic diagram 6 of a vehicle according to an embodiment of the present application.

Embodiments for Carrying out the Invention

[0010] Hereinafter, embodiments of the present application will be described in detail, and examples of the embodiments are shown in the accompanying drawings. Through the accompanying drawings, the same or similar reference numerals indicate the same or similar elements, or elements having the same or similar functions. The embodiments described below with reference to the drawings are examples and are for the purpose of explaining the present application and should not be construed as limiting the present application.

[0011] Referring to FIGS. 1 and 2, an embodiment of the present application provides a vehicle, which includes a rear longitudinal beam assembly 410, a rear wheel cover 451, and a rear wheel cover support rod. The rear wheel cover 451 is connected to the rear longitudinal beam assembly 410, the rear wheel cover support rod includes a rear wheel cover rear support rod 452 and a rear wheel cover front support rod I 431, the rear wheel cover 451 is connected to the rear longitudinal beam assembly 410 using the rear wheel cover rear support rod 45, and the rear wheel cover 451 is connected to the passenger compartment 20 using the rear wheel cover front support rod I 431.

[0012] The upper end of the rear wheel cover 451 may be connected to the rear end of the rear longitudinal beam assembly 410 using the rear wheel cover rear support rod 452. The upper end of the rear wheel cover 451 is connected to the passenger compartment 20 using the front support rod I 431 of the rear wheel cover. As a result, the rear longitudinal beam assembly 410 forms a first force transmission structure, and the rear wheel cover support rod and the rear wheel cover 451 fit together to form a second force transmission structure.

[0013] The vehicle has a longitudinal direction, a width direction, and a height direction. The longitudinal direction of the vehicle may be the X direction in the figure, the width direction of the vehicle may be the Y direction in the figure, and the height direction of the vehicle may be the Z direction in the figure.

[0014] Referring to FIGS. 1 and 3, the rear longitudinal beam assembly 410 may include a rear longitudinal beam 411 and a front portion 412 of the rear longitudinal beam. The first force transmission structure may be the lower layer force transmission path 40L1. Specifically, with respect to the lower layer force transmission path 40L1, transmission is performed from the rear longitudinal beam 411 and the front portion 412 of the rear longitudinal beam to the back panel lower cross beam 241, and it may function as the main path of force transmission. The second force transmission structure may be the upper layer force transmission path 40L2. Specifically, the upper layer force transmission path 40L2 includes the front support rod I 431 of the rear wheel cover, the rear wheel cover 451, and the rear support rod 452 of the rear wheel cover.

[0015] In the rear frame 40, by arranging the rear bolt joint portion 452B of the rear support rod of the rear wheel cover at the rear end of the rear longitudinal beam 411, a hierarchical design of the force transmission path is realized. In the lower layer force transmission path 40L1, the collision force is transmitted from the rear longitudinal beam 411 to the front portion 412 of the rear longitudinal beam. Since the left and right front portions of the rear longitudinal beam are connected to the back panel lower cross beam 241, the collision strength of the vehicle is improved.

[0016] The rear longitudinal beam 411 and the rear longitudinal beam front 412 represent the left rear longitudinal beam and the left rear longitudinal beam front, located on the left side of the vehicle body structure. Because the vehicle body structure is symmetrical, the right side of the vehicle body structure has a right rear longitudinal beam and a right rear longitudinal beam front, which are symmetrical to the left rear longitudinal beam and the left rear longitudinal beam front. In addition, based on the symmetrical nature of the vehicle body structure as shown in the accompanying drawings of this application, components having a symmetrical structure, although left and right are not distinguished herein, are still covered by this application.

[0017] Furthermore, the vehicle includes a rear bumper beam assembly 420, which is connected to the passenger compartment 20 using a rear longitudinal beam assembly 410. When the rear of the vehicle is subjected to a collision, the rear bumper beam assembly 420 is able to withstand the impact force of the collision first and transmit the impact force.

[0018] The rear longitudinal beam assembly 410 forms a first force transmission structure at the front end of the rear bumper beam assembly 420, and the rear wheel cover support rod and the rear wheel cover 451 are fitted together to form a second force transmission structure at the front end of the rear bumper beam assembly 420.

[0019] The rear bumper beam assembly 420 may include a rear bumper beam 421 and a rear crash box 422. Referring to Figures 1 to 3, when the rear of the vehicle receives a collision force F for obstacle avoidance, the rear bumper beam assembly 420 is the first to receive the collision force for obstacle avoidance. In the XY plane, the rear bumper beam 421 transmits the force to the left and right rear crash boxes 422, and then sequentially transmits it to the rear longitudinal beam 411 and the rear longitudinal beam front section 412 in the first force transmission structure via the rear bumper beam connecting plate 423 and the rear longitudinal beam closing plate 413.

[0020] Furthermore, in the second force transmission structure, the rear wheel cover rear support rod 452 of the upper force transmission path 40L2 is connected to the rear end position of the rear longitudinal beam 411 using the rear bolt joint 452B of the rear wheel cover rear support rod. Specifically, a nut is provided on the upper surface of the rear longitudinal beam 411 in the Z direction, and a through hole is provided in the rear wheel cover rear support rod 452. The rear wheel cover rear support rod 452 is connected to the rear longitudinal beam 411 by fixing it with bolts in the Z direction, and as a result, the rear wheel cover rear support rod 452 and the rear longitudinal beam 411 are bolted together. Alternatively, the rear wheel cover rear support rod 452 may be connected to the rear longitudinal beam 411 by a connection method such as welding, adhesive coating, FDS (flow-drilled screws), or SPR (self-piercing riveting). The impact force in the rear longitudinal beam assembly 410 is partially transmitted to the rear wheel cover rear support rod 452, the rear wheel cover 451, and the rear wheel cover front support rod I 431 via the connection point between the rear wheel cover rear support rod 452 and the rear longitudinal beam 411. In this way, the upper force transmission path 40L2 is formed.

[0021] The vehicle provided in the embodiment of this application includes a rear longitudinal beam assembly 410, a rear wheel cover 451, and a rear wheel cover support rod. The rear wheel cover 451 is connected to the rear longitudinal beam assembly 410, and the rear wheel cover support rod includes a rear wheel cover support rod 452 and a rear wheel cover front support rod I 431. The rear wheel cover 451 is connected to the rear longitudinal beam assembly 410 using the rear wheel cover rear support rod 452, and the rear wheel cover 451 is connected to the passenger compartment 20 using the rear wheel cover front support rod I 431. The hierarchical design of the force transmission path realized by the rear longitudinal beam assembly, the rear wheel cover, and the rear wheel cover support rod improves the collision strength of the vehicle.

[0022] The rear longitudinal beam assembly 410 and at least a portion of the rear wheel cover support rod are offset in the vehicle's height direction.

[0023] Referring to Figure 1, in the vehicle's height direction, the rear wheel cover support rod is higher than the rear longitudinal beam assembly 410. In this case, if the central part of the vehicle is hit from the rear, the rear longitudinal beam assembly 410 can mitigate the impact force transmitted from the central part to the front of the passenger compartment, and if the upper part of the vehicle is hit from the rear, the rear wheel cover support rod can mitigate the impact force transmitted from the upper part to the front of the passenger compartment. Furthermore, the upper and lower mounting fixtures between the rear longitudinal beam assembly 410 and the rear wheel cover support rod can disperse the impact when the rear of the vehicle is hit, thereby ensuring the structural integrity of the passenger compartment.

[0024] Referring to Figures 2 and 3, the passenger compartment 20 includes a rear panel under crossbeam 241, and the rear longitudinal beam assembly 410 includes a left rear longitudinal beam and a right rear longitudinal beam assembly. The rear bumper beam assembly 420 is connected to the rear panel under crossbeam 241 using the left rear longitudinal beam and the right rear longitudinal beam, and the rear bumper beam assembly 420, the left rear longitudinal beam, the right rear longitudinal beam, and the rear panel under crossbeam 241 form a square frame 400.

[0025] The rear bumper beam assembly 420, the rear longitudinal beam assembly 410, and the lower crossbeam 241 of the back panel form a square frame 400. The front end of the square frame 400 is similar to a π-shaped structure. Specifically, the left rear longitudinal beam and the right rear longitudinal beam push against the lower crossbeam 241 of the back panel to transmit force.

[0026] In the lower force transmission path 40L1, the impact force is transmitted to the lower part of the passenger compartment 20 using the front portions of the left and right rear longitudinal beams. By adding the lower crossbeam 241 of the back panel, the contact area between the square-shaped frame 400 and the passenger compartment 20 is increased, and as a result, the impact force can be more effectively distributed and transmitted to the passenger compartment 20. The left and right sills 211 at the bottom of the passenger compartment 20 transmit and guide the force values ​​to the main frame of the passenger compartment, thereby improving the structural strength of the vehicle.

[0027] Referring to Figure 4, the rear bumper beam assembly 420 includes a rear bumper beam 421 and a rear crash box 422. The rear end of the rear crash box 422 is welded to the rear bumper beam 421, and the front end of the rear crash box 422 is welded to the bumper beam connecting plate 423.

[0028] The rear longitudinal beam assembly 410 includes a rear longitudinal beam 411 and a rear longitudinal beam front section 412, the front end of the rear longitudinal beam 411 being connected to the rear longitudinal beam front section 412 and the rear end of the rear longitudinal beam 411 being welded to a rear longitudinal beam closing plate 413.

[0029] The bumper beam connecting plate 423 is screwed onto the rear longitudinal beam closing plate 413.

[0030] The rear bumper beam 421 is connected to the rear crash box 422 at welding position 422H, the rear crash box 422 is connected to the rear bumper beam connecting plate 423 at welding position 423H, the rear bumper beam connecting plate 423 is connected to the rear longitudinal beam closing plate 413 using four bolts, and the rear longitudinal beam closing plate 413 is connected to the rear longitudinal beam 411 at welding position 411H. In this way, a complete power transmission path for the first power transmission structure is formed to ensure the power transmission stability of the vehicle.

[0031] In one embodiment, the rear wheel cover rear support rod 452 is made of aluminum extruded material, and the end of the rear wheel cover rear support rod 452 is flattened to facilitate connection to the rear end of the rear longitudinal beam 411 using a rear bolt joint 452B.

[0032] Referring to Figure 5, the end of the rear longitudinal beam front portion 412 facing the rear longitudinal beam 411 has a square-shaped nesting structure, and the front end of the rear longitudinal beam 411 is fitted into the square-shaped nesting structure and screwed into the rear longitudinal beam front portion 412.

[0033] The rear longitudinal beam 411 and the rear longitudinal beam front section 412 may overlap by 30 mm to 60 mm using a square-shaped nesting structure. Two M10 bolts are placed on each of the left and right vertical surfaces of the square-shaped nesting structure, and one bolt is placed on each of the top and bottom surfaces of the square-shaped nesting structure, connecting the rear longitudinal beam 411 and the rear longitudinal beam front section 412. In addition, the rear longitudinal beam 411 may be alternatively connected to the rear longitudinal beam front section 412 by welding, a combination of bolting and adhesive injection, or a combination of FDS and adhesive injection, all of which can ensure the connection strength and stability between the rear longitudinal beam 411 and the rear longitudinal beam front section 412.

[0034] Referring to Figure 5, the rear longitudinal beam front section 412 may be connected to the back panel lower crossbeam 241 by a combination of bolting and adhesive coating, welding, or a combination of bolting, FDS, and adhesive coating.

[0035] Referring to Figure 6, the π-shaped structural mechanism at the front end of the square frame 400 is connected to the passenger compartment 20 via an adhesive coating using the rear longitudinal beam front connecting surface 412S and the back panel lower cross beam front connecting surface 241S. Furthermore, the rear longitudinal beam front connecting bolts 412C are positioned to reinforce the connection between the square frame 400 and the structures of the left and right sills 211 of the passenger compartment 20.

[0036] In the transmission process from the lower force transmission path 40L1 and the upper force transmission path 40L2 to the passenger compartment 20, the upper force transmission path 40L2 uses the rear wheel cover rear support rod 452, the rear wheel cover 451, and the rear wheel cover front support rod I431 to transmit the impact force received from the rear longitudinal beam 411 to the upper part of the passenger compartment 20 via the rear wheel cover front support rod I431.

[0037] As described above, the fitting of the upper force transmission path 40L2 and the passenger compartment 20 allows the entire vehicle to have relatively high stability, thereby improving the transmission of collision forces and increasing the torsional rigidity of the entire vehicle.

[0038] Referring to Figure 8, the rear wheel cover 451 has a first overlapping surface 451Z and a second overlapping surface 451Y.

[0039] The first overlapping surface 451Z is connected to the top surface of the rear longitudinal beam 411, and the second overlapping surface 451Y is connected to the inner surface of the rear longitudinal beam 411. The first overlapping surface 451Z and the second overlapping surface 451Y form a half-enclosed overlapping structure of the rear wheel cover 451.

[0040] The rear wheel cover 451 is connected to the rear longitudinal beam 411 by adhesive coating, welding, or bolting using a first overlapping surface 451Z perpendicular to the Z direction of the rear wheel cover 451, and then connected to the rear longitudinal beam 411 by a combination of adhesive coating and FDS, welding, or bolting using a second overlapping surface 451Y perpendicular to the Y direction. Finally, the connection strength between the rear wheel cover 451 and the rear longitudinal beam is increased using a rear wheel cover connecting plate 453, as shown in Figure 7. The rear wheel cover connecting plate 453 may be a U-shaped punched plate. The connection points 453A and 453B on the rear wheel cover connecting plate 453 connect to the rear wheel cover connecting plate 453 and the rear wheel cover 451, and the rear wheel cover connecting plate 453 is connected to the rear longitudinal beam 411 by welding, bolting, FDS, or adhesive coating using the plug weld holes and weld cutouts of the rear wheel cover connecting plate 453, thereby increasing the connection stability between the rear wheel cover 451 and the rear longitudinal beam assembly 410.

[0041] Referring to Figures 9 and 10, the vehicle further includes a rear connecting cast component 253 for the longitudinal beams reinforcing the roof frame, the first connecting structure, the second connecting structure, and the flanged edge 253a are positioned on the rear connecting cast component 253 for the longitudinal beams reinforcing the roof frame.

[0042] In the vehicle's height direction, the rear wheel cover front support rod I 431 is connected to the first connecting structure and the second connecting structure, respectively, using the first bolt 431A and the second bolt 431B.

[0043] In the width direction of the vehicle, the rear wheel cover front support rod I 431 is connected to the flanged edge 253a using a third bolt 431C.

[0044] As shown in Figure 9, the front end of the rear wheel cover front support rod I 431 is connected to the rear connecting cast part 253 of the vertical beam for reinforcing the roof frame using three bolts, and as a result, the upper end of the rear frame 40 is connected to the passenger compartment 20.

[0045] The front end of the rear wheel cover front support rod I 431 is designed to accommodate the slope, so the upper surface of the rear wheel cover front support rod I 431 can be directly attached to the first connecting structure designed on the rear connecting casting part 253 of the vertical beam for roof frame reinforcement, and is bolted using the first bolt 431A. 30mm to 60mm behind the first bolt 431A, one Y-direction bolt sleeve 431T1 is designed on each side of the rear wheel cover front support rod I 431. The left and right vertical surfaces of the rear wheel cover front support rod I 431 are connected to the Y-direction perpendicular flanged edge portion 253a of the rear connecting casting part 253 of the vertical beam for roof frame reinforcement by fitting a third bolt 431C with the bolt sleeve 431T1. 30mm to 60mm behind the third bolt 431C, a bolt sleeve 431T2 is designed perpendicular to the upper surface of the rear wheel cover front support rod I 431. The second bolt 431B passes through the bolt sleeve 431T2 and is then connected to the second connecting structure. The upper and lower surfaces of the rear wheel cover front support rod I 431 are bolted to the second connecting structure surface of the rear connecting casting part 253 of the longitudinal beam for roof frame reinforcement.

[0046] In this case, the rear wheel cover front support rod I 431 is bolted to the rear connecting cast part 253 of the vertical beam for reinforcing the roof frame using a first bolt 431A and a second bolt 431B in the Z direction and a third bolt 431C in the Y direction. This prevents rattling of the rear wheel cover front support rod I 431 in the X, Y, and Z directions, improves the connection stability between the rear frame 40 and the passenger compartment 20, and further increases the torsional rigidity of the entire vehicle.

[0047] Referring to Figure 11, the vehicle further includes a rear wheel cover stabilizer bar 463. The rear wheel cover 451 includes a left rear wheel cover and a right rear wheel cover, with the rear wheel cover stabilizer bar 463 connected between the left and right rear wheel covers.

[0048] As shown in Figure 11, the upper force transmission path 40L2 of the rear frame 40 forms an inverted V-shape, and the dimension of the upper force transmission path 40L2 in the Y direction changes to a shape that is wider at the front and narrower at the rear. The upper end of the rear wheel cover 451 is located in the middle of one side of the upper force transmission path 40L2, and the rear wheel cover rear support rod 452 and the rear wheel cover front support rod I 431 are connected to the front and rear of the upper end of the rear wheel cover 451, respectively.

[0049] Because there is a difference in elevation between the upper force transmission path 40L2 and the lower force transmission path 40L1 in the Z direction, a distance is also created in the Y direction between the left and right paths of the upper force transmission path. In this case, the left rear wheel cover and the right rear wheel cover are connected using the rear wheel cover stabilizer bar 463 located at the upper end of the rear wheel cover in the Y direction. By connecting the force transmission path structures on both sides of the upper force transmission path 40L2 in this way to form an H-shaped structure, the structural stability of the rear wheel cover 451 in the Y direction is increased, tensile force in the Y direction is provided to the force transmission paths on both sides of the upper force transmission path 40L2, and the stability of the force transmission path structure can be increased.

[0050] In addition, referring to Figures 12 and 13, the rear wheel cover stabilizer bar 463 may be a crossbeam having a rectangular, square, or 2x2 grid cross-section divided into three equal parts horizontally. The left and right rear wheel covers are provided with corresponding U-shaped groove structures, which are used to fit the rear wheel cover stabilizer bar 463. Specifically, when the rear wheel cover stabilizer bar 463 is superimposed on the left and right rear wheel covers, the rear wheel cover stabilizer bar 463 is connected to the left and right rear wheel covers by designing a welded structure, a bolted structure, or an FDS structure on the overlapping surfaces 451a, 451b, and 451c of the rear wheel cover 451.

[0051] Referring to Figures 14 and 15, the vehicle further includes a rear frame stabilizer bar assembly 440. The rear frame stabilizer bar assembly 440 includes a rear frame stabilizer bar I 441, a rear frame stabilizer bar II 442, and a rear frame stabilizer bar III 443. The rear frame stabilizer bar II 442 and the rear frame stabilizer bar III 443 are connected to each side of the rear frame stabilizer bar I 441, respectively, and the rear frame stabilizer bar I 441, the rear frame stabilizer bar II 442, and the rear frame stabilizer bar III 443 form an X-shape.

[0052] The rear wheel cover front support rod I 431 has a left rear wheel cover front support rod I and a right rear wheel cover front support rod I. The front end of the X-shaped structure is connected to the left rear wheel cover front support rod I and the right rear wheel cover front support rod I, respectively, and the rear end of the X-shaped structure is connected to the left rear wheel cover and the right rear wheel cover, respectively.

[0053] The X-shaped rear frame stabilizer bar assembly 440 is used at the front end of the upper force transmission path 40L2 of the rear frame 40 to improve the stability of the upper force transmission path 40L2.

[0054] As shown in Figures 14 and 16, the rear frame stabilizer bar assembly 440 includes four triangular U-shaped cross-sectional closing plates, specifically a left closing plate 445, a right closing plate 446, a front closing plate 447, and a rear closing plate 448. The left closing plate 445, the right closing plate 446, the front closing plate 447, and the rear closing plate 448 are joined together using fasteners within the narrow-angle region formed by the rear frame stabilizer bar I 441, the rear frame stabilizer bar II 442, and the rear frame stabilizer bar III 443, and are welded to the rear frame stabilizer bar I 441, the rear frame stabilizer bar II 442, and the rear frame stabilizer bar III 443 at welding position 440E, thereby improving the structural stability of the rear frame stabilizer bar assembly 440.

[0055] Furthermore, the width of the front end of the X-shaped structure is greater than the width of the rear end of the X-shaped structure. The rear frame stabilizer bar assembly 440 is connected to the rear frame by designing four mounting points on the upper ends of the three inclined bars. Referring to Figure 15, the two front mounting points 440A and 440B are positioned corresponding to the foremost ends of the left and right rear wheel cover front support rods I 431 of the upper layer force transmission path, and the two rear mounting points 440C and 440D are positioned corresponding to the upper ends of the left and right rear wheel covers 451 and are close to the rear wheel cover stabilizer bar 463. In this way, when the width of the front end of the X-shaped structure is greater than the width of the rear end of the X-shaped structure, a polygonal structure is formed, which provides a more robust force transmission frame structure for the rear frame 40, thereby improving the overall torsional performance of the vehicle.

[0056] Referring to Figures 17 to 19, the rear wheel cover support rod further includes a rear wheel cover front support rod II 432 and a rear wheel cover front support rod III 433. The upper ends of the rear wheel cover front support rod II 432 and the rear wheel cover front support rod III 433 are connected to both ends of the rear wheel cover front support rod I 431, respectively, and the lower ends of the rear wheel cover front support rod II 432 and the rear wheel cover front support rod III 433 are connected to the rear longitudinal beam assembly 410 using a rear wheel cover front support rod connecting support 435. In this way, the rear wheel cover front support rod I 431, the rear wheel cover front support rod II 432, and the rear wheel cover front support rod III 433 form a triangular frame 430.

[0057] A triangular frame 430 is designed on each of the left and right front ends of the rear frame 40. The triangular frames 430 are used to connect the front end of the upper power transmission path structure to the front end of the lower power transmission path structure, thereby improving the integrity of the vehicle's power transmission.

[0058] As shown in Figures 18 and 19, the rear wheel cover front support rod connecting support 435 is designed at the lower end of the triangular frame 430 and is welded to the lower ends of the rear wheel cover front support rod II and the rear wheel cover front support rod III. The bolted joints 435A, 435B, and 435C of the rear wheel cover front support rod connecting support 435 are then connected to the front of the rear longitudinal beam 412 by bolting, adhesive coating, or FDS. The upper ends of the rear wheel cover front support rod II and the rear wheel cover front support rod III and the rear wheel cover front support rod I 431 are directly joined together and then welded. By connecting the front end of the upper force transmission path structure and the front end of the lower force transmission path structure using the triangular frame 430, the Z-direction wobble stability of the rear frame is significantly ensured.

[0059] Referring to Figures 19 and 20, the front end of the rear wheel cover support rod 452 is connected to the rear wheel cover 451 using a front bolt joint 452A, and the rear end of the rear wheel cover support rod 452 is connected to the rear end of the rear longitudinal beam 411 using a rear bolt joint 452B. The rear wheel cover 451 and the rear wheel cover front support rod I 431 are joined together on both sides using a U-shaped groove on the rear wheel cover 451 and fastened together with bolts, and the rear wheel cover front support rod I 431 is provided with two bolt joints 431D and 431E in the Y direction. The rear wheel cover front support rod I 431 is joined to the rear wheel cover front support rod II 432 by welding. Specifically, when the lower end of the rear wheel cover front support rod II 432 is welded to the rear wheel cover front support rod connecting support 435, the rear wheel cover front support rod connecting support 435 is connected to the rear longitudinal beam using bolted joints 435A, 435B, and 435C.

[0060] As shown in Figure 20, the rear wheel cover front support rod I 431 and the rear wheel cover rear support rod 452 provide stable support in the X direction to the rear wheel cover 451 provided in the embodiment of this application. Specifically, the rear wheel cover 451 is connected to the rear wheel cover front support rod I 431 and the rear wheel cover rear support rod 452 using bolted joints 452A, 431E, and 431D. Furthermore, the rear wheel cover stabilizer bar 463 and the rear frame stabilizer bar assembly 440 provide stable support in the Y direction. Specifically, the rear wheel cover stabilizer bar 463 is connected to the left and right rear wheel covers 451 by welding, and the rear frame stabilizer bar assembly 440 is connected to the rear wheel cover 451 using bolted joints 440C.

[0061] Because the rear shock absorbers are positioned and designed to face diagonally upward and are inclined inward towards the vehicle in the Z direction, both the rear wheel cover stabilizer bar 463 and the rear frame stabilizer bar assembly 440 provide stable support in the Z direction, and because the rear wheel cover 451 employs a support structure with multi-directional support rods, the dynamic rigidity at all mounting points of the rear shock absorbers can be improved.

[0062] Furthermore, in the vehicle provided in the embodiments of this application, each connecting component may be an aluminum alloy profile, an aluminum casting, or an aluminum pressed part, and may be formed using materials such as steel, magnesium alloy, or carbon fiber.

[0063] In this application, unless otherwise expressly specified and defined, the first feature portion being "above" or "below" the second feature portion may mean that the first and second feature portions are in direct contact or indirectly in contact through an intermediate medium. Furthermore, the first feature portion being "above," "above," and "top surface" of the second feature portion may mean that the first feature portion is directly above or diagonally above the second feature portion, or simply that the horizontal height of the first feature portion is greater than the horizontal height of the second feature portion. The first feature portion being "below," "below," and "bottom surface" of the second feature portion may mean that the first feature portion is directly below or diagonally below the second feature portion, or simply that the horizontal height of the first feature portion is lower than the horizontal height of the second feature portion.

[0064] In this specification, any descriptive reference to terms such as “one embodiment,” “several embodiments,” “example,” “specific example,” or “several examples” means that a particular feature, structure, material, or property described with reference to an embodiment or example is included in at least one embodiment or example of this application. In this specification, exemplary expressions of the aforementioned terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or properties described may be combined in any one or more embodiments or examples in an appropriate manner. Also, a person skilled in the art may combine different embodiments or examples, or features of different embodiments or examples, described herein, as long as it does not create a conflict.

[0065] Although embodiments of this application have been shown and described above, these embodiments are illustrative and should not be understood as limitations of this application. It will be understood that modifications, alterations, substitutions, and variations of these embodiments may be made within the scope of this application by those skilled in the art.

Claims

1. It is a vehicle, Rear longitudinal beam assembly, A rear wheel cover, wherein the rear wheel cover is connected to the rear longitudinal beam assembly, A rear wheel cover support rod, wherein the rear wheel cover support rod comprises a rear wheel cover rear support rod and a rear wheel cover front support rod I, the rear wheel cover is connected to the rear longitudinal beam assembly using the rear wheel cover rear support rod, and the rear wheel cover is connected to the passenger compartment using the rear wheel cover front support rod I, A vehicle equipped with the following features.

2. The vehicle according to claim 1, wherein at least a portion of the rear longitudinal beam assembly and the rear wheel cover support rod are offset in the height direction of the vehicle.

3. The vehicle according to claim 1 or 2, wherein the passenger compartment is provided with a crossbeam below the back panel, the rear longitudinal beam assembly comprises a left rear longitudinal beam and a right rear longitudinal beam assembly, the rear bumper beam assembly is connected to the crossbeam below the back panel using the left rear longitudinal beam and the right rear longitudinal beam, and the rear bumper beam assembly, the left rear longitudinal beam, the right rear longitudinal beam, and the crossbeam below the back panel form a square frame.

4. The rear bumper beam assembly comprises a rear bumper beam and a rear crash box, the rear end of the rear crash box is welded to the rear bumper beam, and the front end of the rear crash box is welded to the bumper beam connecting plate. The rear longitudinal beam assembly comprises a rear longitudinal beam and a front portion of the rear longitudinal beam, the front end of the rear longitudinal beam is connected to the front portion of the rear longitudinal beam, and the rear end of the rear longitudinal beam is welded to a rear longitudinal beam closing plate. The bumper beam connecting plate is screwed onto the rear longitudinal beam closing plate. The vehicle according to claim 3.

5. The vehicle according to claim 4, wherein the end of the front part of the rear longitudinal beam facing the rear longitudinal beam is a square-shaped nesting structure, and the front end of the rear longitudinal beam is fitted into the square-shaped nesting structure and screwed into the front part of the rear longitudinal beam.

6. The rear wheel cover has a first overlapping surface and a second overlapping surface, The first overlapping surface is connected to the upper surface of the rear vertical beam, and the second overlapping surface is connected to the inner surface of the rear vertical beam, forming a half-enclosed overlapping structure of the rear wheel cover. The vehicle according to any one of claims 1 to 5.

7. The roof frame reinforcement longitudinal beam rear connecting casting is further provided, and a first connecting structure, a second connecting structure, and a flanged edge are arranged on the roof frame reinforcement longitudinal beam rear connecting casting. In the height direction of the vehicle, the rear wheel cover front support rod I is connected to the first connecting structure and the second connecting structure, respectively, using a first bolt and a second bolt. In the width direction of the vehicle, the rear wheel cover front support rod I is connected to the flanged edge using a third bolt. The vehicle according to any one of claims 1 to 6.

8. The vehicle according to any one of claims 1 to 7, further comprising a rear wheel cover stabilizer bar, wherein the rear wheel cover comprises a left rear wheel cover and a right rear wheel cover, and the rear wheel cover stabilizer bar is connected between the left rear wheel cover and the right rear wheel cover.

9. The rear frame stabilizer bar assembly further comprises a rear frame stabilizer bar I, a rear frame stabilizer bar II, and a rear frame stabilizer bar III, wherein the rear frame stabilizer bar II and the rear frame stabilizer bar III are connected to both sides of the rear frame stabilizer bar I, respectively, to form an X-shaped structure. The rear wheel cover front support rod I comprises a left rear wheel cover front support rod I and a right rear wheel cover front support rod I, the front end of the X-shaped structure is separately connected to the left rear wheel cover front support rod I and the right rear wheel cover front support rod I, and the rear end of the X-shaped structure is separately connected to the left rear wheel cover and the right rear wheel cover. The width of the front end of the X-shaped structure is greater than the width of the rear end of the X-shaped structure. The vehicle according to any one of claims 1 to 8.

10. The vehicle according to any one of claims 1 to 9, wherein the rear wheel cover support rod further comprises a rear wheel cover front support rod II and a rear wheel cover front support rod III, the upper ends of the rear wheel cover front support rod II and the rear wheel cover front support rod III are respectively connected to both ends of the rear wheel cover front support rod I, and the lower ends of the rear wheel cover front support rod II and the rear wheel cover front support rod III are connected to the rear longitudinal beam assembly using a rear wheel cover front support rod connecting support, so that the rear wheel cover front support rod I, the rear wheel cover front support rod II and the rear wheel cover front support rod III form a triangular frame.

Images