Rear vehicle body structure and vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to a rear vehicle body structure. Comprising a top cover outer plate, a rear floor body, a first top cover cross beam fixedly connected with the top cover outer plate, a rear floor cross beam fixedly connected with the rear floor body, and two top edge beam inner plates arranged in the X direction and fixedly connected with the two ends of the first top cover cross beam correspondingly. The two C-column inner plates and the rear wheel cover inner plate are located between the first top cover cross beam and the rear floor cross beam, the two C-ring vertical beam assemblies are fixedly connected with the C-column inner plates and the rear wheel cover inner plate respectively, and the two ends of each C-column inner plate are fixedly connected with the top edge beam inner plate and the rear wheel cover inner plate respectively. According to the rear vehicle body structure, the torsional rigidity and the torsional mode can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a rear vehicle body structure. Background Art

[0002] During the driving process of the vehicle, problems such as body torsional deformation, road noise and wind noise will occur, affecting the riding comfort of passengers. In addition, low torsional stiffness will lead to aggravated torsional deformation of the body, which will cause abnormal noise and affect the durability and handling performance of the vehicle. During the vehicle development process, the torsional stiffness, torsional mode and NTF (Noise Transfer Function) of the white body jointly affect the overall performance of the vehicle. Among them, torsional stiffness is closely related to the torsional modal frequency of the body. High torsional stiffness means that it can respond to torsional deformation at a higher frequency and more effectively resist low-frequency vibrations, thereby improving the overall NVH (Noise, Vibration, Harshness) performance.

[0003] For medium and large SUVs, off-road vehicles or vehicles with long rear overhangs, it is difficult to increase torsional stiffness and improve torsional modes due to the large span of the cavity structure of the rear body structure and weak structural correlation. Utility Model Content

[0004] The utility model aims to provide a rear vehicle body structure with good torsional rigidity and torsional mode.

[0005] To achieve the above-mentioned purpose, the utility model proposes a rear vehicle body structure, including a roof outer panel and a rear floor body arranged opposite to each other, a first roof cross beam fixedly connected to the roof outer panel, a rear floor cross beam fixedly connected to the rear floor body, two top side beam inner panels arranged along the X direction and respectively fixedly connected to the two ends of the first roof cross beam, two C-pillar inner panels and a rear wheel cover inner panel located between the first roof cross beam and the rear floor cross beam, and two C-ring vertical beam assemblies respectively fixedly connected to the C-pillar inner panel and the rear wheel cover inner panel, the two ends of the C-pillar inner panel being respectively fixedly connected to the top side beam inner panel and the rear wheel cover inner panel; the roof outer panel, the first roof cross beam, the two top side beam inner panels, the two C-ring vertical beam assemblies, the C-pillar inner panel, the rear wheel cover inner panel, the rear floor cross beam and the rear floor body enclose a first annular reinforcement cavity.

[0006] Furthermore, the rear vehicle body structure also includes a second roof cross beam fixedly connected to the roof outer panel, a rear panel assembly arranged opposite to the second roof cross beam, and two D-pillar assemblies connected between the second roof cross beam and the rear panel assembly; the second roof cross beam, the two D-pillar assemblies and the rear panel assembly enclose a second annular reinforcement cavity.

[0007] Optionally, the C-ring vertical beam assembly includes a first vertical beam, a second vertical beam and a third vertical beam fixedly connected in sequence, the first vertical beam being fixedly connected to the inner panel of the C-pillar and at least partially fixedly connected to the inner panel of the rear wheel housing, the second vertical beam and the third vertical beam being fixedly connected to the inner panel of the rear wheel housing, and the end of the third vertical beam away from the second vertical beam being fixedly connected to the rear floor cross beam.

[0008] Furthermore, the rear vehicle body structure also includes a reinforcing beam assembly, which includes a first reinforcing beam fixedly connected to the C-pillar inner panel, and two ends of the first reinforcing beam are respectively fixedly connected to the C-ring vertical beam assembly and the D-pillar assembly.

[0009] Optionally, the reinforcing beam assembly further comprises a second reinforcing beam adjacent to a side of the C-ring vertical beam assembly away from the first reinforcing beam, and the first reinforcing beam and the second reinforcing beam cooperate with each other to transmit and decompose external forces applied to the rear vehicle body structure.

[0010] Optionally, the reinforcing beam assembly further includes a third reinforcing beam and a fourth reinforcing beam fixedly connected to the inner panel of the rear wheel housing, and ends of the third reinforcing beam and the fourth reinforcing beam close to each other are respectively adjacent to opposite sides of the C-ring vertical beam assembly.

[0011] Furthermore, the D-pillar assembly includes a D-pillar reinforcement plate and a D-pillar inner plate that are fixedly connected, and a first D-pillar connecting plate and a second D-pillar connecting plate that are fixedly connected. The D-pillar reinforcement plate is fixedly connected to the second roof cross beam and the C-pillar inner plate through the first D-pillar connecting plate, and the D-pillar inner plate is fixedly connected to the second roof cross beam and the top side beam inner plate through the second D-pillar connecting plate.

[0012] Furthermore, the rear panel assembly includes a rear panel inner panel and a rear panel outer panel fixedly connected, the rear panel inner panel includes a rear panel main body and a rear panel connecting plate fixedly connected, the rear panel connecting plate, the D-pillar reinforcement plate and the D-pillar inner panel at least partially overlap and are fixedly connected in sequence.

[0013] Optionally, the rear vehicle body structure further includes a first top beam connecting plate, and the first roof cross beam is fixedly connected to the C-pillar inner plate via the first top beam connecting plate.

[0014] The utility model also provides a vehicle, comprising the rear vehicle body structure.

[0015] Compared with the prior art, the technical solution of the present invention has the following beneficial effects: the rear vehicle body structure of the present invention can improve torsional rigidity and torsional mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic structural diagram of the rear vehicle body structure of the present utility model at a first viewing angle.

[0018] Figure 2 It is a structural schematic diagram of the rear vehicle body structure of the present invention at a second viewing angle.

[0019] Figure 3 It is a schematic structural diagram of the rear vehicle body structure of the present invention from a third viewing angle.

[0020] Figure 4 It is a partial structural schematic diagram of the rear vehicle body structure of the present utility model.

[0021] Figure 5 It is a schematic diagram of the cross section AA of the first top beam cavity of the present invention.

[0022] Figure 6 It is a schematic diagram of the cross section BB of the second top beam cavity of the utility model.

[0023] Figure 7 It is a schematic diagram of the cross section CC of the top side beam cavity of the utility model.

[0024] Figure 8 It is a schematic diagram of the cross section DD of the C-ring cavity of the present invention.

[0025] Fig. 9 It is a schematic diagram of the cross section EE of the D-pillar cavity of the present invention.

[0026] Fig.10 It is a cross-sectional FF schematic diagram of the rear floor cavity of the present invention.

[0027] Fig.11 It is a schematic diagram of the cross section GG of the rear panel cavity of the present invention.

[0028] In the figure:

[0029] 10-top cover assembly; 11-first top cover cross beam; 12-second top cover cross beam; 13-top side beam inner plate; 14-first top beam connecting plate; 15-top cover outer plate;

[0030] 20-rear floor crossbeam; 21-rear floor body;

[0031] 30-side enclosure assembly; 31-C column inner plate; 32-C ring vertical beam assembly; 321-first vertical beam; 322-second vertical beam; 323-third vertical beam; 60-D column assembly; 61-D column reinforcement plate; 62-D column inner plate; 63-first D column connecting plate; 64-second D column connecting plate;

[0032] 40-rear wheel housing inner panel;

[0033] 50-rear panel assembly; 51-rear panel inner panel; 52-rear panel outer panel; 511-rear panel body; 512-rear panel connecting plate;

[0034] 70-reinforcement beam assembly; 71-first reinforcement beam; 72-second reinforcement beam; 73-third reinforcement beam; 74-fourth reinforcement beam;

[0035] 81-first reinforcement cavity; 82-second reinforcement cavity;

[0036] 91-triangular window installation groove; 92 triangular window installation area. DETAILED DESCRIPTION

[0037] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] The orientation or position relationship indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of description and simplified description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the utility model.

[0039] The terms "first", "second", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0040] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0041] See also Figure 1 The utility model provides a vehicle, including a rear body structure. Specifically, the rear body structure includes a roof assembly 10, a top side beam inner plate 13, a side wall assembly 30, a rear wheel housing inner plate 40, a rear floor assembly and a rear wall assembly 50. For the convenience of description, the X direction is the length direction of the vehicle, the Y direction is the width direction of the vehicle, and the Z direction is the height direction of the vehicle.

[0042] In some embodiments, the roof assembly 10 includes a roof outer panel 15 and a roof crossbeam assembly, the side panel assembly 30 includes a D-pillar assembly 60, a C-pillar inner panel 31 and a C-ring vertical beam assembly 32, the rear floor assembly includes a rear floor body 21 and a rear floor crossbeam 20, and the rear panel assembly 50 includes a rear panel inner panel 51 and a rear panel outer panel 52. Figure 2 The two ends of the C-pillar inner panel 31 along the Z direction are respectively fixedly connected to the top side beam inner panel 13 and the rear wheel housing inner panel 40. The D-pillar assembly 60 is arranged roughly along the Z direction, and the two ends are respectively fixedly connected to the roof cross beam assembly and the rear panel assembly 50. There are at least two roof cross beam assemblies, which are arranged on the roof outer panel 15 at intervals. In some embodiments, the roof cross beam assembly includes a first roof cross beam 11 and a second roof cross beam 12 fixedly connected to the roof outer panel 15.

[0043] Specifically, the roof outer panel 15 and the rear floor body 21 ( Figure 1 The first roof crossbeam 11 is fixedly connected to the roof outer panel 15, the rear floor crossbeam 20 is fixedly connected to the rear floor body 21, the two roof side beam inner panels 13 are arranged along the X direction, and are respectively fixedly connected to the two ends of the first roof crossbeam 11, the two C-pillar inner panels 31 and the rear wheel housing inner panel 40 are located between the first roof crossbeam 11 and the rear floor crossbeam 20, the two C-ring vertical beam assemblies 32 are respectively fixedly connected to the C-pillar inner panel 31 and the rear wheel housing inner panel 40, and the two ends of the C-pillar inner panel 31 are respectively fixedly connected to the roof side beam inner panel 13 and the rear wheel housing inner panel 40. The roof outer panel 15, the first roof crossbeam 11, the two roof side beam inner panels 13, the two C-ring vertical beam assemblies 32, the C-pillar inner panel 31, the rear wheel housing inner panel 40, the rear floor crossbeam 20 and the rear floor body 21 enclose a first annular reinforcement cavity 81.

[0044] See also Figure 1 and Figure 4In some embodiments, the rear panel assembly 50 is disposed opposite to the second roof cross beam 12, and the two D-pillar assemblies 60 are connected between the second roof cross beam 12 and the rear panel assembly 50. The second roof cross beam 12, the two D-pillar assemblies 60 and the rear panel assembly 50 enclose a second annular reinforcement cavity 82.

[0045] Both the first reinforcement cavity 81 and the second reinforcement cavity 82 can improve the integrity and continuity of the above-mentioned rear body structure. When the vehicle suffers a rear impact, they can effectively disperse and absorb the impact force, protect the integrity of the passenger compartment, and improve the torsional stiffness of the rear body structure, thereby improving the torsional mode, so that the rear body can more effectively resist low-frequency torsional excitations, such as road bumps, engine torsional vibration, etc., thereby reducing the distortion of the body and reducing noise and vibration, thereby improving the overall performance of the rear body structure.

[0046] See also Figure 3 Preferably, the rear vehicle body structure further includes a first top beam connecting plate 14, and the first roof cross beam 11 is fixedly connected to the C-pillar inner plate 31 through the first top beam connecting plate 14. Specifically, one end of the first top beam connecting plate 14 is fixedly connected to one end of the first roof cross beam 11 close to the top side beam inner plate 13, and the other end is fixed to the surface of the C-pillar inner plate 31.

[0047] See also Figure 2 and Figure 3 In some embodiments, the projection of the C-ring vertical beam assembly 32 along the X-direction is roughly "C"-shaped. The C-ring vertical beam assembly 32 can be an integral structure. Optionally, the C-ring vertical beam assembly 32 at least includes a first vertical beam 321 and a second vertical beam 322 that are connected to each other. In some embodiments, it also includes a third vertical beam 323. The first vertical beam 321, the second vertical beam 322 and the third vertical beam 323 are fixedly connected in sequence. Further, the first vertical beam 321 is fixedly connected to the C-pillar inner plate 31 and at least partially fixedly connected to the rear wheel housing inner plate 40. The second vertical beam 322 and the third vertical beam 323 are both fixedly connected to the rear wheel housing inner plate 40. The end of the third vertical beam 323 away from the second vertical beam 322 is fixedly connected to the rear floor crossbeam 20. By splitting the C-ring vertical beam assembly 32 into at least two parts, it can be applied to different vehicle models, thereby improving versatility.

[0048] See also Figure 1 and Figure 2In some embodiments, the rear body structure further includes a reinforcing beam assembly 70, which includes a first reinforcing beam 71 fixedly connected to the C-pillar inner plate 31, and the two ends of the first reinforcing beam 71 are respectively fixedly connected to the C-ring vertical beam assembly 32 and the D-pillar assembly 60. The first reinforcing beam connects the first reinforcing cavity and the second reinforcing cavity, so that the rear body structure is further made to be integrated and coherent, thereby improving the body torsional stiffness, torsional mode and NTF performance. In addition, the first reinforcing cavity and the second reinforcing cavity have simple structures, which can reduce costs while improving torsional stiffness.

[0049] Optionally, the reinforcing beam assembly 70 also includes a second reinforcing beam 72 adjacent to a side of the C-ring vertical beam assembly 32 away from the first reinforcing beam 71 , and the first reinforcing beam 71 and the second reinforcing beam 72 cooperate with each other to transmit and decompose external forces acting on the rear vehicle body structure, thereby further improving the torsional stiffness of the rear vehicle body.

[0050] Optionally, the reinforcing beam assembly 70 further includes a third reinforcing beam 73 and a fourth reinforcing beam 74 fixedly connected to the rear wheel housing inner panel 40, and the third reinforcing beam 73 and the fourth reinforcing beam 74 are adjacent to each other at one end and are adjacent to opposite sides of the C-ring vertical beam assembly 32. Preferably, the third reinforcing beam 73 and the fourth reinforcing beam 74 are arranged substantially along the X direction, so as to improve the torsional rigidity of the rear wheel housing inner panel 40.

[0051] Optionally, the front end of the third reinforcing beam 73 along the X direction is at least partially fixedly connected to the second vertical beam 322, and the rear end of the fourth reinforcing beam 74 along the X direction is at least partially fixedly connected to the third vertical beam 323. The reinforcing beam assembly 70 and the C-ring vertical beam assembly 32 can be fixedly connected to each other by welding, bonding, riveting, etc., or fixed to the surface of the rear wheel housing inner panel 40 or the surface of the C-pillar inner panel 31 in sequence.

[0052] In some embodiments, the D-pillar assembly 60 includes a D-pillar reinforcement plate 61 and a D-pillar inner plate 62 that are fixedly connected, and a first D-pillar connecting plate 63 and a second D-pillar connecting plate 64 that are fixedly connected. The D-pillar reinforcement plate 61 is fixedly connected to the second roof cross beam 12 and the C-pillar inner plate 31 through the first D-pillar connecting plate 63, and the D-pillar inner plate 62 is fixedly connected to the second roof cross beam 12 and the top side beam inner plate 13 through the second D-pillar connecting plate 64. Specifically, the first D-pillar connecting plate 63 and the second D-pillar connecting plate 64 both include a concave surface and a convex surface that are arranged oppositely. The concave surface of the first D-pillar connecting plate 63 and the concave surface of the second D-pillar connecting plate 64 are arranged oppositely and enclosed to form a D-pillar connecting assembly. Among them, the first D-pillar connecting plate 63 and the D-pillar inner plate 62 can be integrally formed or fixedly connected by welding, riveting or bonding, and the second connecting plate and the D-pillar reinforcement plate 61 can also be integrally formed or fixedly connected by welding, riveting or bonding. In some embodiments, the edges of the C-pillar inner panel 31 , the D-pillar reinforcement panel 61 , and the D-pillar connecting panel are at least partially overlapped, thereby improving the connection strength and rigidity.

[0053] Preferably, the rear panel inner plate 51 includes a rear panel body 511 and a rear panel connecting plate 512, the rear panel body 511 and the rear panel connecting plate 512 are fixedly connected to each other, the rear panel connecting plate 512, the D-pillar reinforcement plate 61 and the D-pillar inner plate 62 are at least partially overlapped at the connection position and are fixedly connected in sequence, further increasing the strength and rigidity of the connection position.

[0054] Preferably, the edges of the C-ring vertical beam assembly 32, the reinforcing beam assembly 70, the rear floor cross beam 20, the first roof cross beam 11, the second roof cross beam 12, the C-pillar inner panel 31 and the D-pillar inner panel 62 are at least partially extended and bent to form flanges, thereby increasing the contact area of ​​the connection position and further increasing the connection strength and rigidity.

[0055] In some embodiments, Figure 5 As shown, the first roof cross beam 11 and the roof outer plate 15 enclose a first roof beam cavity, and the cross section of the first roof beam cavity is a "J"-shaped structure; Figure 6 As shown, the second roof cross beam 12 and the roof outer panel 15 enclose a second roof beam cavity, and the cross section of the second roof beam cavity is roughly in the shape of a "mouth". In one embodiment, the roof outer panel 15 includes a skylight glass, and the first roof cross beam 11 and the roof outer panel 15 are fixedly connected by a connection method such as overlapping rubber strips, thereby improving the sealing of the connection position.

[0056] like Figure 7 As shown, the top side beam inner plate 13 and the C-pillar inner plate 31 enclose a top side beam cavity, and the top side beam inner plate 13 is fixedly connected to the C-pillar inner plate 31 by welding or other connection methods. The cross section of the top side beam cavity is roughly rhombus-shaped. Figure 8As shown, the C-ring vertical beam assembly 32 is fixedly connected to the inner panel 31 of the C-pillar by welding or other means, enclosing to form a C-ring cavity, and the cross-section of the C-ring cavity is in a "ji" shape. As Fig. 9 shown, the D-pillar reinforcement plate 61 and the inner panel 62 of the D-pillar are fixedly connected by welding or other connection means, enclosing to form a D-pillar cavity.

[0057] As Fig.10 shown, the rear floor crossbeam 20 is fixedly connected to the rear floor body 21 by welding or other connection means, enclosing to form a rear floor cavity, and the rear floor cavity is in a "ji" shape. As Fig.11 shown, the inner panel 51 of the rear panel is fixedly connected to the outer panel 52 of the rear panel by welding or other connection means, enclosing to form a rear panel cavity.

[0058] By welding the above-mentioned various panels, the connection strength can be improved. The above-mentioned various panels all include two opposite concave surfaces and convex surfaces. By arranging the concave surfaces of the above-mentioned various panels opposite to each other, the above-mentioned various cavities are respectively enclosed to disperse the energy generated during a collision, reduce the concentrated impact on a certain specific area, and improve the torsional stiffness. The above-mentioned various panels are not limited to the connection methods of welding or lap joint with rubber strips. Optionally, they also include fixed connection methods such as riveting and bonding.

[0059] In some embodiments, the rear body structure of the present invention further includes a triangular window. A triangular window installation groove 91 is provided on the inner panel 31 of the C-pillar. A triangular window installation area 92 for installing the triangular window is provided on the periphery of the triangular window installation groove 91. The outer surface of the triangular window installation area 92 is recessed inward relative to the part of the inner panel 31 of the C-pillar around the triangular window installation groove 91. The top side beam cavity is located above the triangular window installation area 92 in the Z direction; the C-ring cavity is located behind the triangular window installation area 92 in the X direction, and the C-ring cavity is connected to the first top beam cavity through the top side beam cavity, so that the C-ring cavity avoids the triangular window, thereby increasing the rear row view.

[0060] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A rear vehicle body structure, characterized in that: The invention comprises a roof outer panel (15) and a rear floor body (21) arranged opposite to each other, a first roof cross beam (11) fixedly connected to the roof outer panel (15), a rear floor cross beam (20) fixedly connected to the rear floor body (21), two roof side beam inner panels (13) arranged along the X direction and respectively fixedly connected to two ends of the first roof cross beam (11), two C-pillar inner panels (31) and a rear wheel cover inner panel (40) located between the first roof cross beam (11) and the rear floor cross beam (20), and two C-pillar inner panels (31) and a rear wheel cover inner panel (40) respectively connected to the C-pillar inner panel (31) and the rear wheel cover inner panel (40). The rear wheel cover inner panel (40) is fixedly connected to a C-ring vertical beam assembly (32), and the two ends of the C-pillar inner panel (31) are respectively fixedly connected to the top side beam inner panel (13) and the rear wheel cover inner panel (40); the top cover outer panel (15), the first top cover cross beam (11), the two top side beam inner panels (13), the two C-ring vertical beam assemblies (32), the C-pillar inner panel (31), the rear wheel cover inner panel (40), the rear floor cross beam (20) and the rear floor body (21) enclose a first annular reinforcement cavity (81).

2. The rear vehicle body structure according to claim 1, characterized in that: The vehicle further comprises a second roof cross beam (12) fixedly connected to the roof outer panel (15), a rear panel assembly (50) arranged opposite to the second roof cross beam (12), and two D-pillar assemblies (60) connected between the second roof cross beam (12) and the rear panel assembly (50); the second roof cross beam (12), the two D-pillar assemblies (60) and the rear panel assembly (50) together form an annular second reinforcement cavity (82).

3. The rear vehicle body structure according to claim 1, characterized in that: The C-ring vertical beam assembly (32) comprises a first vertical beam (321), a second vertical beam (322) and a third vertical beam (323) which are fixedly connected in sequence, wherein the first vertical beam (321) is fixedly connected to the C-pillar inner plate (31) and is at least partially fixedly connected to the rear wheel housing inner plate (40), the second vertical beam (322) and the third vertical beam (323) are both fixedly connected to the rear wheel housing inner plate (40), and one end of the third vertical beam (323) away from the second vertical beam (322) is fixedly connected to the rear floor cross beam (20).

4. The rear vehicle body structure according to claim 2, characterized in that: It also includes a reinforcing beam assembly (70), wherein the reinforcing beam assembly (70) includes a first reinforcing beam (71) fixedly connected to the C-pillar inner plate (31), and two ends of the first reinforcing beam (71) are respectively fixedly connected to the C-ring vertical beam assembly (32) and the D-pillar assembly (60).

5. The rear vehicle body structure according to claim 4, characterized in that: The reinforcing beam assembly (70) further comprises a second reinforcing beam (72) adjacent to a side of the C-ring vertical beam assembly (32) away from the first reinforcing beam (71); the first reinforcing beam (71) and the second reinforcing beam (72) cooperate with each other to transmit and decompose external forces applied to the rear vehicle body structure.

6. The rear vehicle body structure according to claim 4 or 5, characterized in that: The reinforcing beam assembly (70) also includes a third reinforcing beam (73) and a fourth reinforcing beam (74) fixedly connected to the rear wheel housing inner plate (40), and the ends of the third reinforcing beam (73) and the fourth reinforcing beam (74) close to each other are respectively adjacent to the opposite sides of the C-ring vertical beam assembly (32).

7. The rear vehicle body structure according to claim 2, characterized in that: The D-pillar assembly (60) comprises a D-pillar reinforcement plate (61) and a D-pillar inner plate (62) that are fixedly connected, and a first D-pillar connecting plate (63) and a second D-pillar connecting plate (64) that are fixedly connected, the D-pillar reinforcement plate (61) being fixedly connected to the second roof cross beam (12) and the C-pillar inner plate (31) via the first D-pillar connecting plate (63), and the D-pillar inner plate (62) being fixedly connected to the second roof cross beam (12) and the top side beam inner plate (13) via the second D-pillar connecting plate (64).

8. The rear vehicle body structure according to claim 7, characterized in that: The rear panel assembly (50) comprises a rear panel inner panel (51) and a rear panel outer panel (52) which are fixedly connected, the rear panel inner panel (51) comprises a rear panel main body (511) and a rear panel connecting plate (512) which are fixedly connected, and the rear panel connecting plate (512), the D-pillar reinforcement plate (61) and the D-pillar inner panel (62) at least partially overlap and are fixedly connected in sequence.

9. The rear vehicle body structure according to claim 1, characterized in that: It also includes a first top beam connecting plate (14), and the first roof cross beam (11) is fixedly connected to the C-pillar inner plate (31) via the first top beam connecting plate (14).

10. A vehicle, characterized in that: The invention comprises the rear vehicle body structure as claimed in any one of claims 1 to 9.

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