Rear body structure and vehicle

Abstract

The utility model provides a rear body structure and vehicle relate to the field of automobile technology, and the rear body structure includes reinforcing plate assembly, rear wheel cover assembly, rear roof crossbeam assembly and floor crossbeam assembly, reinforcing plate assembly includes first reinforcing plate and second reinforcing plate, first reinforcing plate is connected with C column, D column and rear wheel cover assembly respectively, second reinforcing plate is connected with C column, D column and floor crossbeam assembly respectively, first reinforcing plate and second reinforcing plate are connected with rear roof crossbeam assembly, to enclose the load ring between C column and D column, second reinforcing plate is opposite to first reinforcing plate, and load cavity is formed between the two, use the rear wheel cover assembly, floor crossbeam assembly and rear roof crossbeam assembly of vehicle itself, enclose the load ring between C column and D column, to improve the body stiffness, can reduce the cost greatly, and second reinforcing plate is opposite to first reinforcing plate, and load cavity is formed between the two, improve the carrying capacity.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a rear body structure and vehicle. Background Technology

[0002] Improving the torsional stiffness of a car body (hereinafter referred to as "stiffness") is beneficial to the collision and handling performance of the whole vehicle. In the existing vehicle structure, the area between the C-pillar and D-pillar, where the left and right rear shock absorbers are installed, is the direct stress point of the rear of the vehicle. Generally, stiffness is improved by constructing complete C-rings and D-rings. For models with a broken C-pillar structure, there is no complete C-ring, and a one-piece die-cast aluminum rear floor is generally used to improve stiffness, which results in higher vehicle body costs. Utility Model Content

[0003] In view of this, the present invention proposes a rear body structure and vehicle to solve the technical problem mentioned in the background art that for vehicles with a C-pillar disconnected structure, a one-piece die-cast aluminum rear floor is generally used to improve rigidity, resulting in high vehicle body costs.

[0004] The technical solution of this utility model is implemented as follows: In a first aspect, this utility model provides a rear vehicle body structure, including a reinforcing plate assembly, a rear wheel arch assembly, a rear roof crossbeam assembly, and a floor crossbeam assembly, wherein: The reinforcing plate assembly includes a first reinforcing plate and a second reinforcing plate. The first reinforcing plate is connected to the C-pillar, D-pillar and rear wheel arch assembly respectively. The second reinforcing plate is connected to the C-pillar, D-pillar and floor beam assembly respectively. Both the first reinforcing plate and the second reinforcing plate are connected to the rear top beam assembly to form a load-bearing ring between the C-pillar and D-pillar. The second reinforcing plate is disposed opposite to the first reinforcing plate, and a load-bearing cavity is formed between them.

[0005] In some alternative embodiments, preferably, the first reinforcing plate includes a first body, two first sides and two first flanges, the two first sides being located on opposite sides of the first body, the first flanges being connected to the ends of the first sides away from the first body, and the two first flanges being used for welding to the C-pillar and D-pillar respectively.

[0006] In some alternative embodiments, preferably, the first reinforcing plate further includes a first connecting edge disposed at the bottom of the first body, and the first connecting edge is welded to the rear wheel arch assembly.

[0007] In some alternative embodiments, preferably, the second reinforcing plate includes a second body, two second sides and two second folded edges. The two second sides are respectively located on both sides of the second body. The second folded edges are connected to the ends of the second sides away from the second body. The two second folded edges are respectively used for welding to the C-pillar and the D-pillar. The second folded edges and the first folded edges are correspondingly arranged. The first body, the two first sides, the second body and the two second sides form the load-bearing cavity.

[0008] In some alternative embodiments, preferably, the second reinforcing plate further includes a first mating plate located at the upper end and a second mating plate located at the lower end of the second body, the first mating plate being welded to the rear top beam assembly and the second mating plate being welded to the floor beam assembly.

[0009] In some alternative embodiments, preferably, the rear wheel arch assembly includes an inner wheel arch and an outer wheel arch that are interconnected, the inner wheel arch being further connected to the second mating plate, and the outer wheel arch being welded to the first connecting edge.

[0010] In some alternative embodiments, preferably, the rear wheel arch assembly further includes a first stiffener and a second stiffener, the first stiffener connecting the outer wheel arch and the D-pillar respectively, and the second stiffener connecting the first body and the outer wheel arch respectively.

[0011] In some alternative embodiments, preferably, the reinforcing plate assembly further includes a connecting plate that is connected to the first reinforcing plate and the second reinforcing plate, and to the C-pillar and the D-pillar, respectively.

[0012] In some alternative embodiments, preferably, the rear top crossbeam assembly includes a first crossbeam and a second crossbeam connected to each other, the first crossbeam being connected to the connecting plate and the second crossbeam being connected to the second reinforcing plate.

[0013] Secondly, this utility model provides a vehicle including the rear body structure as described in the first aspect.

[0014] The rear body structure and vehicle of this utility model have the following advantages over the prior art: (1) The first reinforcing plate is connected to the C-pillar, D-pillar and rear wheel arch assembly respectively, and the second reinforcing plate is connected to the C-pillar, D-pillar and floor crossbeam assembly respectively. The first reinforcing plate and the second reinforcing plate are both connected to the rear roof crossbeam assembly to form a load-bearing ring between the C-pillar and D-pillar, thereby improving the rigidity of the vehicle body. The rear wheel arch assembly, the floor crossbeam assembly and the rear roof crossbeam assembly that are already present in the vehicle can be used, which can significantly reduce the cost. Furthermore, the second reinforcing plate is arranged opposite to the first reinforcing plate, and a load-bearing cavity is formed between the two, thereby improving the load-bearing capacity. (2) The two first side edges are located on both sides of the first body, and the first folded edge is connected to the end of the first side edge away from the first body. The two first folded edges are used to be welded to the C-pillar and D-pillar respectively, so as to bear the load together with the C-pillar and D-pillar and improve the load-bearing capacity. (3) The two second side edges are located on both sides of the second body respectively. The second folded edge is connected to the end of the second side edge away from the second body. The two second folded edges are respectively used to weld to the C-pillar and D-pillar, and bear the load together with the C-pillar and D-pillar to improve the load-bearing capacity. The second folded edge and the first folded edge are correspondingly arranged. The first body, the two first side edges, the second body and the two second side edges form a hexagonal load-bearing cavity to improve the overall load-bearing capacity of the reinforcing plate assembly and improve the body rigidity. (4) The second reinforcing plate also includes a first docking plate located at the upper end and a second docking plate located at the lower end of the second body. The first docking plate is welded to the rear top beam assembly, and the second docking plate is welded to the floor beam assembly, so that the second reinforcing plate is connected to the rear top beam assembly and the floor beam assembly, so that the whole is formed into a load-bearing ring, thereby improving the overall load-bearing capacity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the rear vehicle body structure of this utility model; Figure 2 This is a structural schematic diagram of the reinforcing plate assembly of this utility model; Figure 3 This is a schematic diagram of the structure of the first reinforcing plate of this utility model; Figure 4This is a schematic diagram of the structure of the first reinforcing plate and the outer wheel cover of this utility model; Figure 5 This is a structural schematic diagram of the first reinforcing plate, connecting plate, and first crossbeam of this utility model; Figure 6 This is a schematic diagram of the second reinforcing plate of this utility model; Figure 7 This is a perspective view of the second reinforcing plate and inner wheel cover of this utility model. Figure 8 This is a perspective view of the second reinforcing plate and inner wheel cover of this utility model from another angle; Figure 9 This is a schematic diagram of the structure of the second reinforcing plate and the second crossbeam of this utility model; Figure 10 This is a partial cross-sectional view of the first and second reinforcing plates of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1-Reinforcement plate assembly, 2-Rear wheel arch assembly, 3-Rear top crossbeam assembly, 4-Floor crossbeam assembly; 100-C-pillar, 200-D-pillar, 300-load-bearing cavity; 11-First reinforcing plate; 111-First body; 112-First side; 113-First folded edge; 114-First connecting edge; 12-Second reinforcing plate; 121-Second body; 122-Second side; 123-Second folded edge; 124-First mating plate; 125-Second mating plate; 13-Connecting plate; 21-Inner wheel cover, 22-Outer wheel cover, 23-First stiffener, 24-Second stiffener; 31 - First crossbeam, 32 - Second crossbeam. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] Reference Figures 1-10 As shown, in a first aspect embodiment of the present invention, a rear vehicle body structure is proposed, comprising a reinforcing plate assembly 1, a rear wheel arch assembly 2, a rear roof crossbeam assembly 3, and a floor crossbeam assembly 4, wherein: The two rear wheel arch assemblies 2 are located at the two rear wheels respectively; the rear roof crossbeam assembly 3 is located above the rear wheel arch assembly 2, between the C pillar 100 and the D pillar 200; the floor crossbeam assembly 4 is located between the two rear wheel arch assemblies 2. The reinforcing plate assembly 1 includes a first reinforcing plate 11 and a second reinforcing plate 12. The first reinforcing plate 11 is connected to the C-pillar 100, the D-pillar 200 and the rear wheel arch assembly 2, respectively. The second reinforcing plate 12 is connected to the C-pillar 100, the D-pillar 200 and the floor beam assembly 4, respectively. The first reinforcing plate 11 and the second reinforcing plate 12 are both connected to the rear top beam assembly 3 to form a load-bearing ring between the C-pillar 100 and the D-pillar 200. The second reinforcing plate 12 is arranged opposite to the first reinforcing plate 11, and a load-bearing cavity 300 is formed between them.

[0020] The rear vehicle body structure proposed in this embodiment connects the first reinforcing plate 11 to the C-pillar 100, D-pillar 200, and rear wheel arch assembly 2, respectively. The second reinforcing plate 12 connects to the C-pillar 100, D-pillar 200, and floor crossbeam assembly 4, respectively. Both the first reinforcing plate 11 and the second reinforcing plate 12 are connected to the rear roof crossbeam assembly 3 to form a load-bearing ring between the C-pillar 100 and D-pillar 200, thereby improving the rigidity of the vehicle body. By using the rear wheel arch assembly 2, the floor crossbeam assembly 4, and the rear roof crossbeam assembly 3, which are already present in the vehicle, the cost can be significantly reduced. Furthermore, the second reinforcing plate 12 is arranged opposite to the first reinforcing plate 11, and a load-bearing cavity 300 is formed between them, thereby improving the load-bearing capacity.

[0021] In some embodiments, the first reinforcing plate 11 includes a first body 111, two first sides 112, and two first flanges 113. The two first sides 112 are respectively located on both sides of the first body 111, and the first flanges 113 are connected to the ends of the first sides 112 away from the first body 111, forming a "U"-shaped structure. The two first flanges 113 are used to weld to the C-pillar 100 and the D-pillar 200, respectively. Through the above structure, the first reinforcing plate 11 is connected to the C-pillar 100 and the D-pillar 200, so that the first reinforcing plate 11 and the C-pillar 100 and the D-pillar 200 share the load, thereby improving the load-bearing capacity.

[0022] In some embodiments, the first reinforcing plate 11 further includes a first connecting edge 114, which is disposed at the bottom of the first body 111 and welded to the rear wheel arch assembly 2. By welding the first connecting edge 114 to the rear wheel arch assembly 2, the first reinforcing plate 11 is connected to the rear wheel arch assembly 2, forming part of the load-bearing ring, which contributes to improving the body strength.

[0023] In some embodiments, the second reinforcing plate 12 includes a second body 121, two second sides 122 and two second folded edges 123. The two second sides 122 are respectively located on both sides of the second body 121. The second folded edges 123 are connected to the ends of the second sides 122 away from the second body 121. The two second folded edges 123 are respectively used for welding to the C-pillar 100 and the D-pillar 200. The second folded edges 123 and the first folded edges 113 are correspondingly arranged. The first body 111, the two first sides 112, the second body 121 and the two second sides 122 form a hexagonal load-bearing cavity 300. Through the above structure, the second reinforcing plate 12 is connected to the C-pillar 100 and the D-pillar 200, so that the second reinforcing plate 12, the C-pillar 100 and the D-pillar 200 bear the load together, thereby improving the load-bearing capacity. The first body 111, the two first side edges 112, the second body 121 and the two second side edges 122 form a hexagonal load-bearing cavity 300, which improves the overall load-bearing capacity of the reinforcing plate assembly 1 and enhances the rigidity of the vehicle body.

[0024] In some embodiments, the second reinforcing plate 12 further includes a first mating plate 124 located at the upper end and a second mating plate 125 located at the lower end of the second body 121. The first mating plate 124 is welded to the rear top beam assembly 3, and the second mating plate 125 is welded to the floor beam assembly 4. The first mating plate 124 and the second mating plate 125 connect the second reinforcing plate 12 to the rear top beam assembly 3 and the floor beam assembly 4, forming a load-bearing ring and improving the overall load-bearing capacity.

[0025] In some embodiments, the rear wheel arch assembly 2 includes an inner wheel arch 21 and an outer wheel arch 22 connected to each other. The inner wheel arch 21 is also connected to the second mating plate 125, and the outer wheel arch 22 is welded to the first connecting edge 114. The connection between the second mating plate 125 and the inner wheel arch 21 improves the overall integrity of the second reinforcing plate 12 and the rear wheel arch assembly 2, thereby increasing its load-bearing capacity. The welding of the first connecting edge 114 to the outer wheel arch 22 achieves the connection between the first reinforcing plate 11 and the rear wheel arch assembly 2.

[0026] In some embodiments, the rear wheel arch assembly 2 further includes a first stiffener 23 and a second stiffener 24. The first stiffener 23 connects the outer wheel arch 22 and the D-pillar 200, respectively, and the second stiffener 24 connects the first body 111 and the outer wheel arch 22, respectively. The first stiffener 23 connects the outer wheel arch 22 and the D-pillar 200, allowing them to share the load and improving load-bearing capacity. The second stiffener 24 connects the first body 111 and the outer wheel arch 22, strengthening the connection between the first reinforcing plate 11 and the rear wheel arch assembly 2, further improving the connection reliability and load-bearing capacity.

[0027] In some embodiments, the reinforcing plate assembly 1 further includes a connecting plate 13, which is connected to the first reinforcing plate 11 and the second reinforcing plate 12, and to the C-pillar 100 and the D-pillar 200, respectively. The connecting plate 13 connects the first reinforcing plate 11 and the second reinforcing plate 12, and connects the C-pillar 100 and the D-pillar 200, thus connecting the first reinforcing plate 11 to the C-pillar 100 and the D-pillar 200, and the second reinforcing plate 12 to the C-pillar 100 and the D-pillar 200. This integrates the components into a single unit, improving load-bearing capacity and increasing vehicle height.

[0028] In some embodiments, the rear top crossbeam assembly 3 includes a first crossbeam 31 and a second crossbeam 32 connected to each other. The first crossbeam 31 is connected to the connecting plate 13, and the second crossbeam 32 is connected to the second reinforcing plate 12. Specifically, the second crossbeam 32 is connected to the first mating plate 124. This structure achieves the connection between the first reinforcing plate 11 and the rear top crossbeam assembly 3, and also the connection between the second reinforcing plate 12 and the rear top crossbeam assembly 3, making them a unified whole and improving load-bearing capacity.

[0029] The working principle of the rear body structure is as follows: the first reinforcing plate 11 is connected to the C-pillar 100, D-pillar 200 and rear wheel arch assembly 2 respectively; the second reinforcing plate 12 is connected to the C-pillar 100, D-pillar 200 and floor crossbeam assembly 4 respectively; the first reinforcing plate 11 and the second reinforcing plate 12 are both connected to the rear roof crossbeam assembly 3 to form a load-bearing ring between the C-pillar 100 and D-pillar 200 to improve the body rigidity. By using the rear wheel arch assembly 2, the floor crossbeam assembly 4 and the rear roof crossbeam assembly 3 which are already present in the vehicle, the cost can be significantly reduced.

[0030] Based on the same concept, the second aspect of the present invention, combined with... Figure 10 As shown, a vehicle is proposed, including a rear body structure as described in the first aspect.

[0031] The vehicle proposed in this embodiment forms a load-bearing ring between the C-pillar 100 and the D-pillar 200 using sheet metal parts to improve the rigidity of the vehicle body. It also utilizes the rear wheel arch assembly 2, the floor crossbeam assembly 4, and the rear roof crossbeam assembly 3 that are already present in the vehicle, which can significantly reduce costs.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rear vehicle body structure, characterized in that, Including the reinforcing plate assembly (1), the rear wheel arch assembly (2), the rear roof crossbeam assembly (3), and the floor crossbeam assembly (4), wherein: The reinforcing plate assembly (1) includes a first reinforcing plate (11) and a second reinforcing plate (12). The first reinforcing plate (11) is connected to the C-pillar (100), the D-pillar (200) and the rear wheel arch assembly (2) respectively. The second reinforcing plate (12) is connected to the C-pillar (100), the D-pillar (200) and the floor beam assembly (4) respectively. The first reinforcing plate (11) and the second reinforcing plate (12) are both connected to the rear top beam assembly (3) to form a load-bearing ring between the C-pillar (100) and the D-pillar (200). The second reinforcing plate (12) is arranged opposite to the first reinforcing plate (11), and a load-bearing cavity (300) is formed between them.

2. The rear vehicle body structure as described in claim 1, characterized in that, The first reinforcing plate (11) includes a first body (111), two first side edges (112) and two first flanges (113). The two first side edges (112) are located on both sides of the first body (111), and the first flanges (113) are connected to the ends of the first side edges (112) away from the first body (111). The two first flanges (113) are used to be welded to the C-pillar (100) and the D-pillar (200) respectively.

3. The rear vehicle body structure as described in claim 2, characterized in that, The first reinforcing plate (11) further includes a first connecting edge (114), which is disposed at the bottom of the first body (111) and is welded to the rear wheel cover assembly (2).

4. The rear vehicle body structure as described in claim 3, characterized in that, The second reinforcing plate (12) includes a second body (121), two second side edges (122) and two second folded edges (123). The two second side edges (122) are located on both sides of the second body (121). The second folded edges (123) are connected to the ends of the second side edges (122) away from the second body (121). The two second folded edges (123) are used to weld to the C-pillar (100) and the D-pillar (200) respectively. The second folded edges (123) and the first folded edges (113) are correspondingly arranged. The first body (111), the two first side edges (112), the second body (121) and the two second side edges (122) form the load-bearing cavity (300).

5. The rear vehicle body structure as described in claim 4, characterized in that, The second reinforcing plate (12) also includes a first docking plate (124) located at the upper end and a second docking plate (125) located at the lower end of the second body (121). The first docking plate (124) is welded to the rear top beam assembly (3), and the second docking plate (125) is welded to the floor beam assembly (4).

6. The rear vehicle body structure as described in claim 5, characterized in that, The rear wheel cover assembly (2) includes an inner wheel cover (21) and an outer wheel cover (22) connected to each other. The inner wheel cover (21) is also connected to the second mating plate (125), and the outer wheel cover (22) is welded to the first connecting edge (114).

7. The rear vehicle body structure as described in claim 6, characterized in that, The rear wheel arch assembly (2) further includes a first stiffener (23) and a second stiffener (24). The first stiffener (23) is connected to the outer wheel arch (22) and the D-pillar (200) respectively, and the second stiffener (24) is connected to the first body (111) and the outer wheel arch (22) respectively.

8. The rear vehicle body structure as described in claim 1, characterized in that, The reinforcing plate assembly (1) further includes a connecting plate (13), which is connected to the first reinforcing plate (11) and the second reinforcing plate (12) respectively, and is also connected to the C-pillar (100) and the D-pillar (200) respectively.

9. The rear vehicle body structure as described in claim 8, characterized in that, The rear top crossbeam assembly (3) includes a first crossbeam (31) and a second crossbeam (32) connected to each other. The first crossbeam (31) is connected to the connecting plate (13), and the second crossbeam (32) is connected to the second reinforcing plate (12).

10. A vehicle, characterized in that, Includes the rear body structure as described in any one of claims 1-9.

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