CN217649532U - Vehicle body rear structure and vehicle - Google Patents

Abstract

The application discloses automobile body rear structure and vehicle, automobile body rear structure include back side wall inner panel, C post reinforcing plate, the vertical reinforcing plate of back side wall, rear wheel casing outer reinforcing plate and rear overhang spring installing support. One end of the rear wheel casing outer reinforcing plate is connected with the rear suspension spring mounting support, the other end of the rear wheel casing outer reinforcing plate is provided with a first supporting arm and a second supporting arm, the first supporting arm is connected with the C column reinforcing plate, the second supporting arm is connected with the rear side wall longitudinal reinforcing plate, the rear side wall inner plate is connected between the rear side wall longitudinal reinforcing plate and the C column reinforcing plate, and the rear suspension spring mounting support, the rear wheel casing outer reinforcing plate, the C column reinforcing plate, the rear side wall longitudinal reinforcing plate and the rear side wall inner plate jointly form an inverted A-shaped multi-channel force transmission structure. Encircle the multichannel biography power structure of falling A shape that the triangular window formed, make the impact load of back shock absorber, back suspension spring tower seat transmit supreme automobile body effectively, pass power route diversified, solved impact load too concentrated, overlap joint solder joint fracture problem.

Description

Vehicle body rear structure and vehicle

Technical Field

The present disclosure relates to vehicle body structures, and particularly to a vehicle body rear structure and a vehicle.

Background

With the rapid development of vehicle technology, people have higher and higher requirements on vehicle performance. The performance of the whole vehicle is directly influenced by the quality of the main body structure of the vehicle body, particularly the stress of the rear structure of the vehicle body is complex, and the impact force of a chassis on a rear suspension mounting structure, the impact force of a shock absorber on the vehicle body, the impact force of a spring on a tower base, the impact force of rear collision on the vehicle body and the like are directly borne. The quality of the rear structure of the vehicle body directly influences the rigidity and strength of the vehicle body, the frame mouth deformation, the bending mode, the endurance reliability, the rear collision, the NVH (noise vibration and harshness) and other performances of the vehicle body, and simultaneously directly influences the performances of the collision safety, the endurance reliability, the riding comfort and the like of the whole vehicle.

At present, due to the existence of a triangular window, reinforcing structures on the outer sides of rear wheel covers of a vehicle body rear structure are mutually independent, the structural relevance is less, an up-and-down continuous multi-channel force transmission structure from a spring tower base to a top cover beam cannot be formed, the force transmission path is poor in connectivity and unreasonable, and lap welding spots are prone to cracking.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a vehicle body rear portion structure and a vehicle, and the problems that a force transmission path is unreasonable and lap welding points are prone to cracking can be solved at least.

The rear structure of the vehicle body comprises a rear side wall inner plate, a C-pillar reinforcing plate, a rear side wall longitudinal reinforcing plate, a rear wheel casing outer reinforcing plate and a rear suspension spring mounting bracket; one end of the rear wheel casing outer reinforcing plate is connected with the rear suspension spring mounting support, the other end of the rear wheel casing outer reinforcing plate is provided with a first supporting arm and a second supporting arm, the first supporting arm is connected with the C-pillar reinforcing plate, the second supporting arm is connected with the rear side casing longitudinal reinforcing plate, the rear side casing inner plate is connected between the rear side casing longitudinal reinforcing plate and the C-pillar reinforcing plate, and the rear suspension spring mounting support, the rear wheel casing outer reinforcing plate, the C-pillar reinforcing plate, the rear side casing longitudinal reinforcing plate and the rear side casing inner plate form an inverted A-shaped multi-channel force transmission structure together.

In some embodiments, the rear structure further comprises a D-pillar upper reinforcement plate and a C/D-pillar connector link plate, wherein one end of the side-gusset longitudinal reinforcement plate is in overlapping alignment with the second support arm, and the other end is in overlapping alignment with the D-pillar upper reinforcement plate; one end of the C-column reinforcing plate is in lap joint alignment with the first supporting arm, and the other end of the C-column reinforcing plate is in lap joint with the C/D column joint connecting plate.

In some embodiments, the vehicle body rear structure further includes a roof auxiliary cross member, a roof rear cross member, a rear side member, a rear floor first lower cross member, and a rear floor second lower cross member; the inverted A-shaped multi-channel force transmission structure, the C/D column joint connecting plate, the top cover auxiliary cross beam, the top cover rear cross beam, the D column upper reinforcing plate, the rear longitudinal beam, the rear floor first lower cross beam and the rear floor second lower cross beam jointly form an integrated inverted A-shaped outer ring structure.

In some embodiments, the rear suspension spring mounting bracket is connected to the rear longitudinal beam, the C-pillar stiffener is connected to one end of the C/D-pillar joint connection plate, the other end of the C/D-pillar joint connection plate is connected to the D-pillar upper stiffener, the rear side-surrounding longitudinal stiffener is connected to the D-pillar upper stiffener, the top cover auxiliary cross beam and the top cover rear cross beam are spaced apart from each other and are both connected between the two C/D-pillar joint connection plates, and the rear floor first lower cross beam and the rear floor second lower cross beam are spaced apart from each other and are both connected between the two rear longitudinal beams.

In some embodiments, the vehicle body rear structure further comprises a D-pillar lower reinforcement panel and a quarter lateral reinforcement panel. The D column lower reinforcing plate and the D column upper reinforcing plate are respectively positioned at two opposite ends of the D column; the two ends of the rear side wall transverse reinforcing plate are respectively connected with the D column lower reinforcing plate and the rear side wall longitudinal reinforcing plate, and the rear side wall inner plate, the rear side wall transverse reinforcing plate and the rear side wall longitudinal reinforcing plate jointly form an X-shaped C/D column connecting structure.

In some embodiments, the vehicle body rear structure further comprises a rear side wall inner plate front reinforcing plate, a rear wheel cover front reinforcing plate, a rear floor upper beam, a rear side wall inner plate rear reinforcing plate, a rear wheel cover rear reinforcing plate, a rear floor second lower beam and a rear wheel cover transverse reinforcing plate; the rear side wall inner plate front reinforcing plate, the rear wheel cover front reinforcing plate, the rear floor upper beam, the rear side wall inner plate rear reinforcing plate, the rear wheel cover rear reinforcing plate, the rear floor second lower beam and the rear wheel cover transverse reinforcing plate jointly form an H-shaped multi-channel force transmission structure.

In certain embodiments, the vehicle body rear structure further comprises a C/D pillar joint connection plate; the two ends of the rear floor upper cross beam are respectively connected with one end of the rear wheel casing front reinforcing plate, the other end of the rear wheel casing front reinforcing plate is connected with the rear side wall inner plate front reinforcing plate, the two ends of the rear floor second lower cross beam are respectively connected with one end of the rear wheel casing rear reinforcing plate, and the other end of the rear wheel casing rear reinforcing plate is connected with the rear side wall inner plate rear reinforcing plate; the front reinforcing plate of the rear side wall inner plate and the rear reinforcing plate of the rear side wall inner plate are connected to the C/D column connector connecting plate; one end of the transverse reinforcing plate of the rear wheel cover is connected with the front reinforcing plate of the rear wheel cover, and the other end of the transverse reinforcing plate of the rear wheel cover is connected with the rear reinforcing plate of the rear wheel cover.

In some embodiments, the vehicle body rear structure further comprises C/D pillar joint connection plates, a roof auxiliary cross member, a roof rear cross member, and D-pillar upper reinforcement plates, the roof auxiliary cross member and the roof rear cross member being spaced apart from each other and both connected between the two C/D pillar joint connection plates; the H-shaped multi-channel force transmission structure, the C/D column joint connecting plate, the top cover auxiliary cross beam, the top cover rear cross beam and the D column upper reinforcing plate jointly form an integrated H-shaped inner ring structure.

In some embodiments, the H-shaped multi-channel force transfer structure on one side, the inverted a-shaped multi-channel force transfer structure on the other side, the C/D column connector connection plate, the top cover auxiliary beam, and the top cover rear beam collectively form an integral inner and outer ring structure.

The vehicle according to the embodiment of the present application includes the vehicle body rear structure according to any one of the embodiments described above.

In the automobile body rear structure and the vehicle of this application, rear overhang spring installing support, the outer reinforcing plate of rear wheel casing, the C post reinforcing plate, the vertical reinforcing plate of back side wall and the many channel transmission structure of falling A shape that back side wall inner panel formed jointly for the impact load of back shock absorber, back overhang spring tower seat transmits to the automobile body effectively, it is diversified to pass the power route, it is too concentrated to have solved impact load, overlap joint solder joint fracture problem, the upper and lower automobile body links up and link up simultaneously, it is complete to pass the power route, be favorable to improving whole car turn-round rigidity, turn round modal and endurance reliability.

Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of a rear vehicle body structure according to certain embodiments of the present application;

FIG. 2 is a partial structural schematic view of the vehicle body rear structure shown in FIG. 1, viewed from the inside right side;

FIG. 3 is a partial structural schematic view of the vehicle body rear structure shown in FIG. 1, viewed from the outside left side;

FIG. 4 is a schematic diagram showing an inverted A-shaped multi-channel force transfer structure formed in FIG. 3;

FIG. 5 is a schematic view of an outer ring structure of a vehicle body rear structure according to some embodiments of the present application;

FIG. 6 is a schematic diagram showing the unitary inverted A-shaped outer ring structure formed in FIG. 5;

FIG. 7 is a schematic diagram showing the X-shaped C/D pillar connection structure formed in FIG. 3;

FIG. 8 is a schematic view of an inner ring structure of a vehicle body rear structure according to some embodiments of the present application;

FIG. 9 is a schematic diagram showing the integral H-shaped inner ring structure formed in FIG. 8;

FIG. 10 is a schematic view of the inner and outer ring structures of the vehicle body rear structure of certain embodiments of the present application;

FIG. 11 is a schematic diagram showing the integrated inner and outer ring structure formed in FIG. 10;

FIG. 12 is a schematic perspective view of a vehicle according to certain embodiments of the present application.

Description of the main element symbols:

the device comprises a vehicle body rear structure 100, an inverted A-shaped multi-channel force transmission structure 101, an integrated inverted A-shaped outer ring structure 102, an X-shaped C/D column connecting structure 103, an H-shaped multi-channel force transmission structure 105, an integrated H-shaped inner ring structure 107 and an integrated inner and outer ring structure 109;

the structure comprises a middle floor 1, a rear wheel casing 2, a rear wheel casing outer plate 16, a rear door lock catch mounting plate 20, a rear floor 21 and a middle floor lower cross beam 25; a rear side wall inner plate 12 and a rear side wall longitudinal reinforcing plate 15;

a rear wheel house outer reinforcement plate 26, a first support arm 261, a second support arm 263, a rear suspension spring mounting bracket 19;

a C/D column joint connecting plate 10 and a D column upper reinforcing plate 11; the roof auxiliary cross beam 5, the roof rear cross beam 9, the rear longitudinal beam 17, the rear floor first lower cross beam 24 and the rear floor second lower cross beam 23;

the C column reinforcing plate 18, the D column lower reinforcing plate 13 and the rear side wall transverse reinforcing plate 14; the front reinforcing plate 3 of the rear side wall inner plate, the front reinforcing plate 4 of the rear wheel cover, the upper beam 22 of the rear floor, the rear reinforcing plate 7 of the rear side wall inner plate, the rear reinforcing plate 8 of the rear wheel cover and the transverse reinforcing plate 6 of the rear wheel cover.

Detailed Description

Embodiments of the present application will be further described with reference to the drawings. The same or similar reference numbers in the drawings identify the same or similar elements or elements having the same or similar functionality throughout.

In addition, the embodiments of the present application described below in conjunction with the accompanying drawings are exemplary and are only for the purpose of explaining the embodiments of the present application, and are not to be construed as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, 3 and 4, a vehicle body rear structure 100 according to the embodiment of the present invention includes a quarter inner panel 12, a C-pillar reinforcement panel 18, a quarter longitudinal reinforcement panel 15, a rear wheel house outer reinforcement panel 26, and a rear suspension spring mounting bracket 19. One end of the rear wheel casing outer reinforcing plate 26 is connected with the rear suspension spring mounting bracket 19, the other end is provided with a first supporting arm 261 and a second supporting arm 263, the first supporting arm 261 is connected with the C-pillar reinforcing plate 18, the second supporting arm 263 is connected with the rear side casing longitudinal reinforcing plate 15, the rear side casing inner plate 12 is connected between the rear side casing longitudinal reinforcing plate 15 and the C-pillar reinforcing plate 18, and the rear suspension spring mounting bracket 19, the rear wheel casing outer reinforcing plate 26, the C-pillar reinforcing plate 18, the rear side casing longitudinal reinforcing plate 15 and the rear side casing inner plate 12 jointly form an inverted A-shaped multi-channel force transmission structure 101.

In the vehicle body rear structure 100 of the application, the rear suspension spring mounting bracket 19, the rear wheel casing outer reinforcing plate 26, the C-column reinforcing plate 18, the rear side wall longitudinal reinforcing plate 15 and the rear side wall inner plate 12 jointly form an inverted A-shaped multi-channel force transmission structure 101, so that the impact load of a rear shock absorber and a rear suspension spring tower base is effectively transmitted to an upper vehicle body, force transmission paths are diversified, the problems that the impact load is too concentrated and lap welding spots crack are solved, meanwhile, the upper vehicle body and the lower vehicle body are continuously communicated, the force transmission paths are complete, and the improvement of the bending rigidity, the bending mode and the endurance reliability of the whole vehicle is facilitated.

The present application is described in detail below with reference to the attached drawings.

Referring to fig. 1 and 2 together, the vehicle body rear structure 100 includes a middle floor 1, a rear wheel casing 2, a front side wall inner panel reinforcing plate 3, a front rear wheel casing reinforcing plate 4, a top cover auxiliary beam 5, a rear wheel casing transverse reinforcing plate 6, a rear side wall inner panel reinforcing plate 7, a rear wheel casing rear reinforcing plate 8, a top cover rear beam 9, a C/D column joint connecting plate 10, a D column upper reinforcing plate 11, a rear side wall inner panel 12, a D column lower reinforcing plate 13, a rear side wall transverse reinforcing plate 14, a rear side wall longitudinal reinforcing plate 15, a rear wheel casing outer panel 16, a rear longitudinal beam 17, a C column reinforcing plate 18, a rear suspension spring mounting bracket 19, a rear door latch mounting plate 20, a rear floor 21, a rear floor upper beam 22, a rear floor first lower beam 24, a rear floor second lower beam 23, a middle floor lower beam 25, and a rear wheel casing outer reinforcing plate 26.

The middle floor 1 is located in the middle of the bottom of the vehicle 1000 (shown in fig. 12), the rear floor 21 is located at the rear of the bottom of the vehicle 1000, the upper rear floor cross member 22 is located at the rear of the bottom of the vehicle 1000, the first lower rear floor cross member 24 is located at the rear of the bottom of the vehicle 1000, the second lower rear floor cross member 23 is located at the rear of the bottom of the vehicle 1000 and is closer to the rear of the vehicle than the first lower rear floor cross member 24, and the lower middle floor cross member 25 is located in the middle of the bottom of the vehicle 1000. The middle floor 1 is connected with a middle floor lower cross beam 25. The rear floor 21 is installed between the rear floor first lower cross member 24 and the rear floor second lower cross member 23, and between the rear floor second lower cross member 23 and the vehicle rear. The rear floor upper cross member 22 and the rear floor first lower cross member 24 correspond in the height direction of the vehicle 1000, and the rear floor upper cross member 22 is closer to the top of the vehicle 1000 than the rear floor first lower cross member 24. That is, in the height direction of the vehicle 1000, the projection of the rear floor upper cross member 22 and the projection of the rear floor first lower cross member 24 at least partially coincide, or even completely coincide. Thus, the middle floor 1, the middle floor lower cross member 25, the rear floor first lower cross member 24 (rear floor upper cross member 22), a part of the rear floor 21, the rear floor second lower cross member 23, and the remaining rear floor 21 are arranged in this order in the direction from the head to the tail.

The roof sub-cross member 5 and the roof rear cross member 9 are located on the roof of the vehicle 1000 and spaced apart from each other. The two sides of the vehicle 1000 are basically symmetrically arranged, that is, the rear wheel casing 2, the front rear side wall inner plate reinforcing plate 3, the front rear wheel casing reinforcing plate 4, the transverse rear wheel casing reinforcing plate 6, the rear side wall inner plate rear reinforcing plate 7, the rear wheel casing rear reinforcing plate 8, the C/D column connector connecting plate 10, the D column upper reinforcing plate 11, the rear side wall inner plate 12, the D column lower reinforcing plate 13, the transverse rear side wall reinforcing plate 14, the longitudinal rear side wall reinforcing plate 15, the rear wheel casing outer plate 16, the rear longitudinal beam 17, the C column reinforcing plate 18, the rear suspension spring mounting bracket 19, the rear door latch mounting plate 20 and the rear wheel casing outer reinforcing plate 26 are respectively two in number, and are respectively distributed on one side of the vehicle 1000. The rear wheel house 2 covers the rear wheels of the vehicle 1000, and the rear wheel house outer panel 16 is provided on the rear wheel house 2 and located outside the vehicle 1000.

Referring to fig. 3 and 4, in some embodiments, the rear suspension spring mounting bracket 19, the rear wheel house outer reinforcement plate 26, the C-pillar reinforcement plate 18, the quarter longitudinal reinforcement plate 15, and the quarter inner plate 12 together form an inverted a-shaped multi-channel force transfer structure 101. It should be noted that, two inverted a-shaped multi-channel force transmission structures 101 are formed on two sides of the vehicle 1000, and the two inverted a-shaped multi-channel force transmission structures 101 may be symmetrical with respect to a central axis of the vehicle 1000 in the longitudinal direction.

Specifically, one end of the longitudinal side wall reinforcing plate 15 is overlapped and aligned with the second supporting arm 263, and the other end is overlapped with the D-pillar upper reinforcing plate 11; one end of the C-pillar reinforcement plate 18 is in overlapping alignment with the first support arm 261 and the other end is in overlapping alignment with the C/D-pillar connector web 10. In this application embodiment, rear overhang spring installing support 19, rear wheel casing outer reinforcement 26, C post reinforcing plate 18, the vertical reinforcing plate 15 of back side wall and back side wall inner panel 12 form shape multichannel biography power structure 101 of falling A jointly, encircle the quarter window, make the back shock absorber, the impact load of back overhang spring tower seat transmits to the automobile body effectively, pass power route is diversified, it is too concentrated to have solved impact load, the problem of overlap joint solder joint fracture, the upper and lower automobile body links up and link up simultaneously, it is complete to pass power route, be favorable to improving whole car turn round rigidity, turn round mode and endurance reliability.

Referring to fig. 3 to 6, in some embodiments, an inverted-a-shaped multi-channel force transmission structure 101, a C/D column joint connection plate 10, a roof auxiliary cross beam 5, a roof rear cross beam 9, a D-column upper reinforcement plate 11, a rear longitudinal beam 17, a rear floor first lower cross beam 24, and a rear floor second lower cross beam 23 together form an integrated inverted-a-shaped outer ring structure 102.

Specifically, a rear suspension spring mounting bracket 19 of the inverted-A-shaped multi-channel force transmission structure 101 is connected with a rear longitudinal beam 17, a C column reinforcing plate 18 of the inverted-A-shaped multi-channel force transmission structure 101 is connected with one end of a C/D column joint connecting plate 10, the other end of the C/D column joint connecting plate 10 is connected with a D column upper reinforcing plate 11, a rear side wall longitudinal reinforcing plate 15 is connected with the D column upper reinforcing plate 11, a top cover auxiliary cross beam 5 and a top cover rear cross beam 9 are spaced from each other and are connected between the two C/D column joint connecting plates 10, a rear floor first lower cross beam 24 and a rear floor second lower cross beam 23 are spaced from each other and are connected between the two rear longitudinal beams 17.

Referring to fig. 3 and 7, in some embodiments, the D-pillar lower reinforcement plate 13 and the D-pillar upper reinforcement plate 11 are respectively located at two opposite ends of the D-pillar. The two ends of the rear side wall transverse reinforcing plate 14 are respectively connected to the D column lower reinforcing plate 13 and the rear side wall longitudinal reinforcing plate 15, and the rear side wall inner plate 12, the rear side wall transverse reinforcing plate 14 and the rear side wall longitudinal reinforcing plate 15 form an X-shaped C/D column connecting structure 103 together.

In the embodiment of the application, the X-shaped C/D column connecting structure 103 formed by the rear side wall inner plate 12, the rear side wall transverse reinforcing plate 14 and the rear side wall longitudinal reinforcing plate 15 establishes a force transmission path between the C column and the D column, so that the collision load borne by the vehicle body in the rear collision process can be effectively transmitted, the rear deformation of the vehicle body is reduced, and the battery pack is protected from being extruded. Meanwhile, the X-shaped C/D column connecting structure 103 and the inverted A-shaped multi-channel force transmission structure 101 support the corner region of the D column upper reinforcing plate 11 through the rear side wall longitudinal reinforcing plate 15, so that deformation of a tail door and a skylight frame opening can be reduced, bending rigidity and bending mode of a vehicle body are greatly improved, and riding comfort of a back row is improved.

Referring to fig. 8 and 9, in some embodiments, the quarter inner panel front reinforcement 3, the rear wheel house front reinforcement 4, the rear floor top rail 22, the quarter inner panel rear reinforcement 7, the rear wheel house rear reinforcement 8, the rear floor second bottom rail 23, and the rear wheel house transverse reinforcement 6 together form an H-shaped multi-channel force transfer structure 105. It should be noted that the two H-shaped multi-channel force transfer structures 105 on both sides of the vehicle 1000 share a rear floor upper cross member 22 and a rear floor second lower cross member 23.

Specifically, both ends of the rear floor upper beam 22 are respectively connected with one end of a rear wheel casing front reinforcing plate 4, the other end of the rear wheel casing front reinforcing plate 4 is connected with a rear side wall inner plate front reinforcing plate 3, both ends of the rear floor second lower beam 23 are respectively connected with one end of a rear wheel casing rear reinforcing plate 8, and the other end of the rear wheel casing rear reinforcing plate 8 is connected with a rear side wall inner plate rear reinforcing plate 7. And the front reinforcing plate 3 of the rear side wall inner plate and the rear reinforcing plate 7 of the rear side wall inner plate are both connected to the C/D column connector connecting plate 10. One end of the rear wheel cover transverse reinforcing plate 6 is connected with the rear wheel cover front reinforcing plate 4, and the other end is connected with the rear wheel cover rear reinforcing plate 8.

In the embodiment of the application, the front reinforcing plate 3 of the rear side wall inner plate, the front reinforcing plate 4 of the rear wheel casing, the upper rear floor beam 22, the rear reinforcing plate 7 of the rear side wall inner plate, the rear wheel casing rear reinforcing plate 8, the second rear floor beam 23 and the transverse reinforcing plate 6 of the rear wheel casing form an H-shaped multi-channel force transmission structure 105 together, so that the local lap joint structure of the rear wheel casing 2 is effectively enhanced, the dynamic rigidity of the mounting point of the rear suspension shock absorber, the NVH performance of a vibration transmission path and the like are improved, and the riding comfort of the rear row is improved. Meanwhile, the H-shaped multi-channel force transmission structure 105 establishes a force transmission path between the rear floor 21 and the roof cross beam (including the roof rear cross beam 9 and the roof auxiliary cross beam 5), so that the upper and lower vehicle bodies are communicated, and the bending rigidity and the durability and reliability of the vehicle bodies are improved.

With continued reference to fig. 8 and 9, in some embodiments, the H-shaped multi-channel force transfer structure 105, the C/D column connector connection plate 10, the top cover auxiliary beam 5, the top cover rear beam 9, and the D-column upper reinforcement plate 11 together form an integrated H-shaped inner ring structure 107.

In the embodiment of the application, two H-shaped multi-channel force transmission structures 105 are fused together through the transverse reinforcing plate 6 of the rear wheel cover to form an integrated H-shaped inner ring structure 107, the integrated H-shaped inner ring structure 107 fuses the whole rear vehicle body to be communicated, so that the force transmission path of the whole rear vehicle body is more continuous and is tightly combined, and the bending rigidity, the durability and the reliability and the NVH performance of the whole vehicle are greatly improved.

In addition, the integrated H-shaped inner ring structure 107 and the integrated inverted a-shaped outer ring structure 102 are arranged correspondingly, that is, the C-pillar reinforcement plate 18 in the integrated inverted a-shaped outer ring structure 102 corresponds to the front side body inner panel reinforcement plate 3 in the integrated H-shaped inner ring structure 107; the rear side wall longitudinal reinforcing plate 15 in the integrated reverse A-shaped outer ring structure 102 corresponds to the rear side wall inner plate rear reinforcing plate 7 in the integrated H-shaped inner ring structure 107 in position; the integrated inverted-A-shaped outer ring structure 102 and the integrated H-shaped inner ring structure 107 share a second lower rear floor beam 23; the rear floor first lower cross member 24 in the integrated inverted a-shaped outer ring structure 102 corresponds in position to the rear floor upper cross member 22 in the integrated H-shaped inner ring structure 107, and the corresponding components are separated by a partition (not shown). The integral type H shape inner ring structure 107 and the integral type fall A shape outer ring structure 102 one inside and outside, the inside and outside combination and the overall arrangement that corresponds set up, make whole rear portion automobile body pass power route more diversified, rear portion automobile body structure reaches the optimum, more is favorable to whole car turn round rigidity, turn round modal property, rear portion collision performance, NVH performance, back row to take the promotion of travelling comfort and whole car endurance reliability.

Referring to fig. 10 and 11, in some embodiments, the H-shaped multi-channel force transfer structure on one side, the inverted a-shaped multi-channel force transfer structure on the other side, the C/D column connector connection plate 10, the top cover auxiliary beam 5, and the top cover rear beam 9 together form an integrated inner and outer ring structure 109. The integrated inner and outer ring structure 109 further diversifies the force transmission path of the whole rear body, optimizes the rear body structure, and is more favorable for improving the bending and twisting rigidity, the bending and twisting modal performance, the rear collision performance, the NVH performance, the rear-row riding comfort and the durability and reliability of the whole vehicle.

Referring to fig. 12, the present embodiment further provides a vehicle 1000, and the vehicle 1000 includes the vehicle body rear structure 100 according to any one of the above embodiments. The vehicle 1000 may be, but is not limited to, a fuel-powered vehicle, a pure electric vehicle, a hybrid electric vehicle, or the like.

Please refer to fig. 1 and fig. 2, the vehicle 1000 of the present application has the following advantages:

the first rear suspension spring mounting bracket 19, the rear wheel cover outer reinforcing plate 26, the C-column reinforcing plate 18, the rear side wall longitudinal reinforcing plate 15 and the rear side wall inner plate 12 jointly form an inverted A-shaped multi-channel force transmission structure 101, so that impact loads of a rear shock absorber and a rear suspension spring tower base are effectively transmitted to an upper vehicle body, force transmission paths are diversified, the problems that the impact loads are too concentrated and lap welding spots crack are solved, meanwhile, the upper vehicle body and the lower vehicle body are continuously communicated, the force transmission paths are complete, and the bending rigidity, the bending mode and the durability reliability of the whole vehicle are improved;

the X-shaped C/D column connecting structure 103 formed by the second rear side wall inner plate 12, the rear side wall transverse reinforcing plate 14 and the rear side wall longitudinal reinforcing plate 15 establishes a force transmission path between the C column and the D column, can effectively transmit collision load borne by the vehicle body in the rear collision process, reduces the rear deformation of the vehicle body and protects the battery pack from being extruded;

thirdly, the inverted A-shaped multi-channel force transmission structure 101 and the X-shaped C/D column connecting structure 103 support the corner region of the D column through the rear side wall longitudinal reinforcing plate 15, so that the deformation of a tail door and a skylight frame opening can be reduced, the bending rigidity and the bending mode of a vehicle body can be greatly improved, and the riding comfort of a rear row is improved;

fourthly, the H-shaped multi-channel force transmission structure 105 effectively strengthens the lapping structure of the rear wheel cover 2, improves the dynamic rigidity of the mounting point of the rear suspension shock absorber, the NVH performance of a vibration transmission path and the like, and improves the riding comfort of the rear row. Meanwhile, the H-shaped multi-channel force transmission structure 105 establishes a force transmission path between the rear floor 21 and the top cover beam, so that the upper vehicle body and the lower vehicle body are communicated, and the bending rigidity and the durability and reliability of the vehicle body are improved;

fifthly, the inverted A-shaped multi-channel force transmission structure 101 and the H-shaped multi-channel force transmission structure 105 are respectively connected with an integrated inverted A-shaped outer ring structure and an integrated H-shaped inner ring structure which are formed by the rear floor upper cross beam 22, the rear floor lower cross beam, the top cover rear cross beam 9 and the top cover auxiliary cross beam 5, and the force transmission path of the whole rear vehicle body is more continuous and is tightly combined with the integrated inverted A-shaped outer ring structure and the integrated H-shaped inner ring structure, so that the bending rigidity, the durability and the reliability of the whole vehicle and the NVH performance are greatly improved.

In the description herein, reference to the description of the terms "certain embodiments," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "a plurality" means at least two, e.g., two, three, unless specifically limited otherwise.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art within the scope of the present application, which is defined by the claims and their equivalents.

Claims (10)

1. A vehicle body rear structure characterized by comprising: the rear side wall inner plate, the C-pillar reinforcing plate, the rear side wall longitudinal reinforcing plate, the rear wheel casing outer reinforcing plate and the rear suspension spring mounting bracket are arranged on the rear side wall inner plate;

one end of the rear wheel casing outer reinforcing plate is connected with the rear suspension spring mounting support, the other end of the rear wheel casing outer reinforcing plate is provided with a first supporting arm and a second supporting arm, the first supporting arm is connected with the C-pillar reinforcing plate, the second supporting arm is connected with the rear side casing longitudinal reinforcing plate, the rear side casing inner plate is connected between the rear side casing longitudinal reinforcing plate and the C-pillar reinforcing plate, and the rear suspension spring mounting support, the rear wheel casing outer reinforcing plate, the C-pillar reinforcing plate, the rear side casing longitudinal reinforcing plate and the rear side casing inner plate form an inverted A-shaped multi-channel force transmission structure together.

2. The vehicle body rear structure according to claim 1, characterized by further comprising:

one end of the rear side wall longitudinal reinforcing plate is in lap joint alignment with the second supporting arm, and the other end of the rear side wall longitudinal reinforcing plate is in lap joint with the D column upper reinforcing plate; and

and one end of the C-column reinforcing plate is in lap joint alignment with the first supporting arm, and the other end of the C-column reinforcing plate is in lap joint with the C/D-column joint connecting plate.

3. The vehicle body rear structure according to claim 2, further comprising a roof auxiliary cross member, a roof rear cross member, a rear side member, a rear floor first lower cross member, and a rear floor second lower cross member;

the inverted A-shaped multi-channel force transmission structure, the C/D column joint connecting plate, the top cover auxiliary cross beam, the top cover rear cross beam, the D column upper reinforcing plate, the rear longitudinal beam, the rear floor first lower cross beam and the rear floor second lower cross beam jointly form an integrated inverted A-shaped outer ring structure.

4. The vehicle body rear structure according to claim 3, wherein the rear suspension spring mounting bracket is connected to the rear side member, the C-pillar reinforcement plate is connected to one end of the C/D-pillar joint connection plate, the other end of the C/D-pillar joint connection plate is connected to the D-pillar upper reinforcement plate, the quarter longitudinal reinforcement plate is connected to the D-pillar upper reinforcement plate, the roof sub-cross member and the roof rear cross member are spaced apart from each other and are connected between the two C/D-pillar joint connection plates, and the rear floor first lower cross member and the rear floor second lower cross member are spaced apart from each other and are connected between the two rear side members.

5. The vehicle body rear structure according to claim 2, characterized by further comprising:

the D column lower reinforcing plate and the D column upper reinforcing plate are respectively positioned at two opposite ends of the D column; and

the two ends of the rear side wall transverse reinforcing plate are respectively connected to the D column lower reinforcing plate and the rear side wall longitudinal reinforcing plate;

the rear side wall inner plate, the rear side wall transverse reinforcing plate and the rear side wall longitudinal reinforcing plate jointly form an X-shaped C/D column connecting structure.

6. The vehicle body rear structure according to claim 1, further comprising a quarter inner panel front reinforcement plate, a rear wheel house front reinforcement plate, a rear floor upper beam, a quarter inner panel rear reinforcement plate, a rear wheel house rear reinforcement plate, a rear floor second lower beam, a rear wheel house lateral reinforcement plate;

the rear side wall inner plate front reinforcing plate, the rear wheel cover front reinforcing plate, the rear floor upper beam, the rear side wall inner plate rear reinforcing plate, the rear wheel cover rear reinforcing plate, the rear floor second lower beam and the rear wheel cover transverse reinforcing plate jointly form an H-shaped multi-channel force transmission structure.

7. The vehicle body rear structure according to claim 6, characterized by further comprising a C/D pillar joint connecting plate;

two ends of the upper cross beam of the rear floor are respectively connected with one end of the front reinforcing plate of the rear wheel casing, and the other end of the front reinforcing plate of the rear wheel casing is connected with the front reinforcing plate of the rear side wall inner plate;

two ends of a second lower cross beam of the rear floor are respectively connected with one end of a rear wheel casing rear reinforcing plate, and the other end of the rear wheel casing rear reinforcing plate is connected with a rear side wall inner plate rear reinforcing plate;

the rear side wall inner plate front reinforcing plate and the rear side wall inner plate rear reinforcing plate are connected to the C/D column connector connecting plate; one end of the transverse reinforcing plate of the rear wheel cover is connected with the front reinforcing plate of the rear wheel cover, and the other end of the transverse reinforcing plate of the rear wheel cover is connected with the rear reinforcing plate of the rear wheel cover.

8. The vehicle body rear structure according to claim 6, characterized by further comprising: the C/D column connector comprises C/D column connector connecting plates, a top cover auxiliary cross beam, a top cover rear cross beam and a D column upper reinforcing plate, wherein the top cover auxiliary cross beam and the top cover rear cross beam are spaced from each other and are connected between the two C/D column connector connecting plates;

the H-shaped multi-channel force transmission structure, the C/D column joint connecting plate, the top cover auxiliary cross beam, the top cover rear cross beam and the D column upper reinforcing plate jointly form an integrated H-shaped inner ring structure.

9. The vehicle body rear structure according to claim 8, wherein the H-shaped multi-channel force transmission structure on one side, the inverted a-shaped multi-channel force transmission structure on the other side, the C/D pillar joint connection plate, the roof sub-rail, and the roof rear rail together form an integral inner and outer ring structure.

10. A vehicle characterized by comprising the vehicle body rear structure according to any one of claims 1 to 9.

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