Vehicle body rear structure for vehicle and vehicle

Abstract

The invention relates to a vehicle body rear structure for a vehicle and the vehicle, the vehicle body rear structure for the vehicle comprises a side wall inner plate which is vertically arranged, and the side wall inner plate comprises an upper wall plate and a rear wheel cover which are sequentially connected from top to bottom; the C-shaped ring assembly is connected to the inner wall face of the side wall inner plate, the C-shaped ring assembly comprises a vertically-arranged lower reinforcing arm, a front reinforcing arm and a rear reinforcing arm, the front reinforcing arm and the rear reinforcing arm are sequentially arranged from front to back, the front reinforcing arm and the rear reinforcing arm at least partially cover the inner wall face of the upper wall plate, the upper end of the lower reinforcing arm is in lap joint with the front reinforcing arm and the rear reinforcing arm, and the lower end of the lower reinforcing arm is in lap joint with the rear reinforcing arm. At least part of the lower reinforcing arm covers the inner wall face of the rear wheel cover, and a cavity is defined by the front reinforcing arm, the rear reinforcing arm, the lower reinforcing arm and the inner wall face of the side wall inner plate. By means of the design, the front reinforcing arm and the rear reinforcing arm do not occupy the space of the inner side of the rear wheel cover, occupation of the vehicle body rear structure on the vehicle interior space is reduced, and the requirement of a user for the large space in a trunk is better met.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a rear body structure for a vehicle and a vehicle. Background Art

[0002] At present, when a car is driving on the road, the tires will receive excitations from different road surfaces, and the excitations from the road surface will be transmitted to the car body through the car suspension, causing the car body to vibrate. If the strength of the car body frame structure is weak, it will further aggravate the vibration of the car body sheet metal, compress the sound cavity inside the car, and cause noise problems inside the car.

[0003] In the prior art, the rear structure of the vehicle body frame has problems such as unreasonable force transmission path, insufficient structural rigidity and strength. At present, in order to improve the rigidity of the vehicle body, a herringbone C ring is usually set on the inner panel of the side wall. At this time, the two reinforcing arms of the C ring are both located on the inner wall surface of the rear wheel cover, which will sacrifice the space inside the vehicle, resulting in insufficient space inside the vehicle. Summary of the invention

[0004] Based on this, it is necessary to provide a vehicle body rear structure and a vehicle that can improve the rigidity of the vehicle body while saving space inside the vehicle.

[0005] The present application provides a vehicle body rear structure, comprising a side inner panel, arranged vertically, the side inner panel comprising an upper wall panel and a rear wheel cover connected in sequence from top to bottom; a C-ring assembly, connected to the inner wall surface of the side inner panel, the C-ring assembly is Y-shaped, and comprises a vertically arranged lower reinforcing arm and a front reinforcing arm and a rear reinforcing arm arranged in sequence from front to rear, the front reinforcing arm and the rear reinforcing arm both at least partially cover the inner wall surface of the upper wall panel, the upper end of the lower reinforcing arm is overlapped with the front reinforcing arm and the rear reinforcing arm respectively, and the lower reinforcing arm at least partially covers the inner wall surface of the rear wheel cover, and the front reinforcing arm, the rear reinforcing arm and the lower reinforcing arm all form a cavity with the inner wall surface of the side inner panel.

[0006] In one of the embodiments, the rear wheel cover protrudes inwardly along the direction of its wall thickness, and the overlapping parts of the lower reinforcing arm, the front reinforcing arm and the rear reinforcing arm cover the top of the rear wheel cover.

[0007] In one embodiment, the front reinforcement arm is arranged vertically and includes a first bracket, a second bracket and a third bracket. The third bracket includes a horizontal plate portion covering the top of the rear wheel cover. The first bracket and the second bracket are connected in sequence from top to bottom, and the lower area of ​​the second bracket is connected to the third bracket.

[0008] In one embodiment, the rear reinforcement arm includes an upper bracket and a lower bracket connected in sequence from top to bottom, and at least a portion of the lower area of ​​the lower bracket covers the connection between the cross plate portion and the rear wheel cover. The third bracket is provided with a mounting plate for mounting a shock absorber at a position below the cross plate portion, and the mounting plate is connected to the third bracket, and a cavity is formed between the third bracket, the mounting plate and the upper wall plate of the side inner panel.

[0009] In one embodiment, the top of the lower reinforcing arm includes a bent portion covering the transverse plate portion, the lower area of ​​the lower bracket has a first side portion covering the transverse plate portion and the second bracket and a second side portion covering the inner wall surface of the rear wheel cover, the C-ring assembly also includes a side reinforcing plate, the longitudinal section of the side reinforcing plate is basically an inverted L-shape, and includes a top plate and a side plate, the top plate covers the bent portion and the first side portion, the second side portion and part of the lower reinforcing arm are located between the inner wall surface of the rear wheel cover and the side plate.

[0010] In one embodiment, the lower reinforcing arm and the rear reinforcing arm are gradually inclined forward from top to bottom.

[0011] In one embodiment, an outer reinforcement frame is provided on the outer wall surface of the rear wheel cover at a position corresponding to the lower reinforcement arm, the outer reinforcement frame extends along the length direction of the lower reinforcement arm, and a first space is defined between the outer reinforcement frame and the outer wall surface of the rear wheel cover.

[0012] In one of the embodiments, a reinforcing component is provided on the outer wall surface of the upper wall plate at a position corresponding to the front reinforcing arm. The reinforcing component extends along the length direction of the front reinforcing arm and defines a second space with the outer wall surface of the upper wall plate.

[0013] In one of the embodiments, the inner wall surface of the second bracket and the inner wall surface of the third bracket are both provided with reinforcing ribs extending along the length direction of the front reinforcing arm, and when the second bracket is in a state of overlapping the third bracket, the reinforcing ribs of the second bracket are connected with the reinforcing ribs of the third bracket.

[0014] In one embodiment, a connecting shell is installed on the inner wall surface of the rear wheel cover, the connecting shell is at least partially located in front of the lower reinforcing arm, and the connecting shell and the inner wall surface of the rear wheel cover define a third space, and the connecting shell is provided with an installation hole for installing a seat.

[0015] In one embodiment, the front edge of the rear wheel cover is used to connect to the rear frame of the door frame behind the vehicle body, and the connecting shell includes a front shell and a rear shell connected in sequence from front to back, the front edge of the front shell overlaps the inner wall surface of the rear frame, the rear edge of the rear shell is located between the inner wall surface of the rear wheel cover and the lower reinforcement arm, and the mounting hole is located on the rear shell.

[0016] In one of the embodiments, it also includes a D-ring, which includes two D-pillars arranged at intervals along the left-right direction of the vehicle body and an upper cross beam and a rear cross beam arranged in sequence from top to bottom, the upper cross beam and the rear cross beam both extend along the left-right direction of the vehicle body, the upper end of the D-pillar is connected to the corresponding end of the upper cross beam through a connecting head, and the lower end of the D-pillar is connected to the corresponding end of the rear cross beam, the upper end of the front reinforcing arm is connected to the connecting head on the corresponding side, and the upper end of the rear reinforcing arm is connected to the D-pillar on the corresponding side.

[0017] In one embodiment, it also includes a frame located below the upper wall panel, the frame includes two rear longitudinal beams arranged at intervals along the left-right direction of the vehicle body and a lower cross beam located between the two rear longitudinal beams, the rear longitudinal beams extend along the front-to-back direction of the vehicle body, the side edges of the rear longitudinal beams extending along the front-to-back direction of the vehicle body are connected to the inner wall surface of the rear wheel cover, and the rear end of the rear longitudinal beams is connected to the rear enclosure cross beam, the lower cross beam extends along the left-to-right direction of the vehicle body, and the left and right ends of the lower cross beam are respectively connected to the rear longitudinal beams on the corresponding sides, and the lower end of the lower reinforcement arm is overlapped on the rear longitudinal beam and connected to the lower cross beam.

[0018] The present application also provides a vehicle, comprising the vehicle body rear structure in any one of the above-mentioned embodiments, wherein the vehicle body rear structure has two side panel inner panels, and each of the side panel inner panels corresponds to one C-ring assembly.

[0019] Compared with the prior art, the C-ring assembly in the rear structure of the vehicle body provided in the present application adopts a Y-shape. The Y-type C-ring assembly improves the bending resistance and strength of the inner panel of the side panel along the left and right directions, wherein the front reinforcing arm and the rear reinforcing arm are at least partially located on the upper wall panel, and the lower reinforcing arm is located on the inner wall surface of the rear wheel cover. At this time, the front reinforcing arm and the rear reinforcing arm do not occupy the space inside the rear wheel cover, which reduces the occupation of the interior space of the vehicle by the rear structure of the vehicle body, thereby increasing the accommodating space in the vehicle and better meeting the user's demand for a large space in the trunk. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A three-dimensional diagram of a rear vehicle body structure according to an embodiment of the present application;

[0022] Figure 2 for Figure 1 A partial enlarged view of the rear structure of the vehicle body at point A is shown;

[0023] Figure 3 A three-dimensional diagram of a partial structure of a vehicle body rear structure according to an embodiment of the present application;

[0024] Figure 4 for Figure 3 A partial enlarged view of the rear structure of the vehicle body at point B is shown;

[0025] Figure 5 for Figure 1 A perspective view of a portion of the rear structure of the vehicle body is shown;

[0026] Figure 6 for Figure 1 The schematic diagram of the structure after the side inner panel and the rear longitudinal beam are connected is shown;

[0027] Figure 7 for Figure 1 A schematic diagram of the assembly structure of the C-ring assembly, the mounting plate, the outer reinforcement frame and the reinforcement assembly in the rear structure of the vehicle body is shown.

[0028] Figure numerals: 1, side inner panel; 11, upper wall panel; 12, rear wheel cover; 2, C ring assembly; 21, front reinforcement arm; 211, first bracket; 212, second bracket; 213, third bracket; 2131, horizontal plate; 2132, cavity; 2133, flange; 214, reinforcement rib; 22, rear reinforcement arm; 221, upper bracket; 222, lower bracket; 2221, first side portion; 2222, second side portion; 23, lower reinforcement arm; 231, vertical bracket; 2311, bending portion; 232, connecting frame; 24, side Reinforcement plate; 241, top plate; 242, side plate; 25, outer reinforcement frame; 26, reinforcement assembly; 261, first reinforcement frame; 262, second reinforcement frame; 27, connecting shell; 271, front shell; 272, rear shell; 2721, boss; 2722, mounting hole; 3, D ring; 31, D pillar; 32, upper cross beam; 33, rear enclosure cross beam; 34, connector; 4, frame; 41, rear longitudinal beam; 411, first longitudinal beam section; 412, second longitudinal beam section; 42, lower cross beam; 5, mounting plate; 51, flange; 6, rear frame. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0034] See also Figures 1 to 7 The present application provides a vehicle rear structure. The vehicle rear structure includes a side inner panel 1, a C ring assembly 2, a D ring 3 and a frame 4. Figure 1 , Figure 3 and Figure 6 As shown, the side inner panel 1 is arranged vertically, and the side inner panel 1 includes an upper wall panel 11 and a rear wheel cover 12 connected in sequence from top to bottom. The upper wall panel 11 and the rear wheel cover 12 can be an integrally formed part, or the upper wall panel 11 and the rear wheel cover 12 can be fixed together by a fixed structure or a fixed method.

[0035] In this application, the left-right direction y of the vehicle body is the width direction of the vehicle body, corresponding to the y direction in the coordinate system. The front-back direction x of the vehicle body is the length direction of the vehicle body, corresponding to the x direction in the coordinate system. The up-down direction z of the vehicle body is the height direction of the vehicle body, corresponding to the z direction in the coordinate system.

[0036] like Figure 1 , Figure 3 and Figure 5 As shown, the D-ring 3 includes two D-pillars 31 arranged at intervals along the left-right direction y, and an upper cross beam 32 and a rear cross beam 33 arranged in sequence from top to bottom. The upper cross beam 32 and the rear cross beam 33 both extend along the left-right direction y, the upper end of the D-pillar 31 is connected to the corresponding end of the upper cross beam 32 through a connector 34, and the lower end of the D-pillar 31 is connected to the corresponding end of the rear cross beam 33.

[0037] In one embodiment, the D-pillar 31 is gradually inclined backward from top to bottom. In another embodiment, a portion of the D-pillar 31 is gradually inclined backward from top to bottom.

[0038] like Figure 1 , Figure 3 and Figure 5 As shown, the frame 4 is located below the upper wall plate 11, and the frame 4 includes two rear longitudinal beams 41 arranged at intervals along the left-right direction y and a lower cross beam 42 located between the two rear longitudinal beams 41. The rear longitudinal beam 41 extends along the front-to-back direction x, and the side of the rear longitudinal beam 41 extending along the front-to-back direction x is connected to the inner wall surface of the rear wheel housing 12, and the rear end of the rear longitudinal beam 41 is connected to the rear enclosure cross beam 33. The lower cross beam 42 extends along the left-to-right direction y, and the left and right ends of the lower cross beam 42 are respectively connected to the rear longitudinal beam 41 on the corresponding side.

[0039] In one embodiment, the rear longitudinal beam 41 is an integrally formed part. Figure 6 As shown, the rear longitudinal beam 41 includes a first longitudinal beam section 411 and a second longitudinal beam section 412 which are sequentially connected from front to rear.

[0040] like Figure 1 and Figure 5 As shown, there are two groups of the side inner panels 1 and C ring assemblies 2, and they are arranged at intervals along the left-right direction y of the vehicle frame. The C ring assemblies 2 are connected to the inner wall surface of the side inner panels 1, so the two C ring assemblies 2 are located between the two side inner panels 1. The structure, arrangement and connection method of the side inner panels 1 and C ring assemblies 2 in each group are the same, and one group is taken as an example for description below.

[0041] In one embodiment, if Figures 1 to 4 As shown, the C-ring assembly 2 is Y-shaped, and the C-ring assembly 2 includes a vertically arranged lower reinforcing arm 23 and a front reinforcing arm 21 and a rear reinforcing arm 22 arranged in sequence from front to back. The front reinforcing arm 21 and the rear reinforcing arm 22 at least partially cover the inner wall surface of the upper wall plate 11. In one embodiment, as Figure 2 As shown, the front reinforcing arm 21 is arranged vertically, and the upper end of the front reinforcing arm 21 is connected to the connector 34 on the corresponding side. The rear reinforcing arm 22 is gradually inclined forward from top to bottom, and the upper end of the rear reinforcing arm 22 is connected to the D-pillar 31 on the corresponding side. At this time, the length direction of the front reinforcing arm 21 and the length direction of the rear reinforcing arm 22 form an angle with each other.

[0042] It should be noted that "vertical arrangement" includes but is not limited to vertical, and may also include tilting, as long as the overall orientation is vertical. "Y-shaped" means that it can be similar to the standard "Y" shape. For example, in other embodiments, the length direction of the front reinforcing arm 21 is parallel to the length direction of the rear reinforcing arm 22, and the lower end of the front reinforcing arm 21 and the lower end of the rear reinforcing arm 22 are connected together by a connecting component, and the lower reinforcing arm 23 is connected to the connecting component. For another example, the rear reinforcing arm 22 is arranged vertically, while the front reinforcing arm 21 gradually tilts backward from top to bottom.

[0043] In another embodiment, the front reinforcing arm 21 and the rear reinforcing arm 22 are both arranged obliquely, such as the front reinforcing arm 21 gradually tilts backward from top to bottom, and the rear reinforcing arm 22 gradually tilts forward from top to bottom, and so on.

[0044] like Figures 2 to 4 As shown, the upper end of the lower reinforcing arm 23 overlaps the front reinforcing arm 21 and the rear reinforcing arm 22, respectively, and at least part of the lower reinforcing arm 23 covers the inner wall surface of the rear wheel housing 12. In one embodiment, the upper end of the lower reinforcing arm 23 overlaps the lower end of the front reinforcing arm 21 and the lower end of the rear reinforcing arm 22, respectively, and the lower end of the lower reinforcing arm 23 overlaps the rear longitudinal beam 41 of the frame 4 and is connected to the lower cross beam 42. In order to further improve the bending resistance of the vehicle body along the left-right direction y, the front reinforcing arm 21, the rear reinforcing arm 22 and the lower reinforcing arm 23 are all defined with the inner wall surface of the side inner panel 1 to form a cavity.

[0045] It can be understood that, since the upper ends of the front reinforcing arm 21 and the upper ends of the rear reinforcing arm 22 are both connected to the D-pillar 31, at this time, the front reinforcing arm 21, the rear reinforcing arm 22 and the D-pillar 31 on the corresponding side form a triangular structure. The front reinforcing arm 21, the lower reinforcing arm 23 and the D-pillar 31 on the corresponding side form a triangular structure. The rear reinforcing arm 22, the lower reinforcing arm 23, the rear longitudinal beam 41 on the corresponding side and the D-pillar 31 together form a quadrilateral annular structure. In addition, the D ring 3 and the frame 4 are both annular structures. In this way, the rear body with multiple triangles and multiple annular structures is formed, which improves the stiffness of the torsional mode and the rear structure of the body, improves the durability of the vehicle, reduces the body vibration, and further reduces the road noise, improves the driving safety and driving comfort.

[0046] In one embodiment, if Figure 2 As shown, the lower reinforcing arm 23 is gradually inclined forward from top to bottom, and the lower reinforcing arm 23 includes a vertical bracket 231 and a connecting bracket 232 arranged in sequence from top to bottom. The connecting bracket 232 connects the vertical bracket 231 and the lower cross beam 42, and the longitudinal section of the connecting bracket 232 is substantially L-shaped, and the corner of the connecting bracket 232 is located above the rear longitudinal beam 41 on the corresponding side. In another embodiment, the lower reinforcing arm 23 is arranged vertically, or gradually inclined backward from top to bottom.

[0047] In addition, the C-ring assembly 2 adopts a Y-shape, the front reinforcing arm 21 and the rear reinforcing arm 22 are at least partially located on the upper wall panel 11, and the lower reinforcing arm 23 is located on the inner wall surface of the rear wheel cover 12, which reduces the occupancy of the internal space of the rear structure of the vehicle body, that is, increases the accommodating space.

[0048] In one embodiment, if Figure 4As shown, the rear wheel housing 12 protrudes inward along the direction of its wall thickness, and the overlapping parts of the lower reinforcing arm 23, the front reinforcing arm 21 and the rear reinforcing arm 22 cover the top of the rear wheel housing 12.

[0049] It can be understood that only part of the lower reinforcing arm 23 covers the inner wall surface of the rear wheel cover 12, and the front reinforcing arm 21 and the rear reinforcing arm 22 are both located above the rear wheel cover 12 and on the outer side of the corresponding side lower reinforcing arm 23, thereby releasing the internal space of the rear structure of the vehicle body, further ensuring a large space inside the vehicle, and meeting the user's demand for a large space.

[0050] In another embodiment, a portion of at least one of the lower reinforcement arm 23 , the front reinforcement arm 21 , and the rear reinforcement arm 22 covers the top of the rear wheel housing 12 .

[0051] In one embodiment, if Figure 2 and Figure 4 As shown, the front reinforcing arm 21 includes a first bracket 211, a second bracket 212 and a third bracket 213. The third bracket 213 includes a transverse plate portion 2131 covering the top of the rear wheel housing 12. The first bracket 211 and the second bracket 212 are connected in sequence from top to bottom. At least part of the lower area of ​​the second bracket 212 covers the inner wall surface of the third bracket 213 away from the side inner plate 1 and is connected to the third bracket 213. In another embodiment, the first bracket 211 and the second bracket 212 in the front reinforcing arm 21 are integrally formed parts.

[0052] In one embodiment, if Figure 2 and Figure 4 As shown, the rear reinforcement arm 22 includes an upper bracket 221 and a lower bracket 222 connected in sequence from top to bottom, and at least part of the lower area of ​​the lower bracket 222 covers the connection between the transverse plate portion 2131 and the rear wheel housing 12. It can be understood that the above-mentioned split arrangement can increase the strength and bending resistance of the connection between the second bracket and the second bracket. Specifically, as Figure 4 As shown, the top of the lower reinforcing arm 23 includes a bent portion 2311 covering the horizontal plate portion 2131, that is, the bent portion 2311 is located on the top of the vertical bracket 231. Figure 4 Combination Figure 7 As shown, the lower area of ​​the lower bracket 222 has a first side portion 2221 covering the transverse plate portion 2131 and the second bracket 212 and a second side portion 2222 covering the inner wall surface of the rear wheel housing 12. It can be understood that the above arrangement further increases the strength at the location of the transverse plate portion 2131.

[0053] In another embodiment, the rear reinforcing arm 22 may also be formed in an integral manner with the upper bracket 221 and the lower bracket 222 .

[0054] In one embodiment, if Figure 4 As shown, the C-ring assembly 2 also includes a side reinforcing plate 24, the longitudinal section of which is substantially in an inverted L-shape, and the side reinforcing plate 24 includes a top plate 241 and a side plate 242. The top plate 241 covers the above-mentioned bending portion 2311 and the first side portion 2221, and the second side portion 2222 and the lower reinforcing arm 23 are partially located between the inner wall surface of the rear wheel housing 12 and the side plate 242. Specifically, the top plate 241 fits with the bending portion 2311 and the first side portion 2221, and a gap is left between the side plate 242 and the inner wall surface of the rear wheel housing 12.

[0055] like Figure 7 As shown, an outer reinforcing frame 25 is provided on the outer wall surface of the rear wheel housing 12 at a position corresponding to the lower reinforcing arm 23, and the outer reinforcing frame 25 extends along the length direction of the lower reinforcing arm 23, and a first space is defined between the outer reinforcing frame 25 and the outer wall surface of the rear wheel housing 12. It can be understood that the existence of the outer reinforcing frame increases the rigidity of the rear wheel housing 12, and the existence of the first space between the outer reinforcing frame 25 and the outer wall surface of the rear wheel housing 12 is conducive to improving the bending resistance of the rear wheel housing 12 in the y direction.

[0056] In one embodiment, the outer reinforcing frame 25 is an integrally formed part. In another embodiment, the outer reinforcing frame 25 is formed by connecting at least two parts, and the at least two parts are arranged in sequence along the length direction of the outer reinforcing frame 25.

[0057] like Figure 3 and Figure 7 As shown, a reinforcing assembly 26 is provided on the outer wall surface of the upper wall plate 11 at a position corresponding to the front reinforcing arm 21, and the reinforcing assembly 26 extends along the length direction of the front reinforcing arm 21, and defines a second space with the outer wall surface of the upper wall plate 11. It can be understood that the existence of the reinforcing assembly 26 increases the rigidity of the upper wall plate 11, and the existence of the second space between the reinforcing assembly 26 and the outer wall surface of the upper wall plate 11 is conducive to improving the bending resistance of the upper wall plate 11 in the y direction.

[0058] In one embodiment, the reinforcing assembly 26 includes a first reinforcing frame 261 corresponding to the first bracket 211 and a second reinforcing frame 262 corresponding to the second bracket 212. In another embodiment, the reinforcing assembly 26 is a structure formed by the first reinforcing frame 261 and the second reinforcing frame 262 being integrally formed.

[0059] It can be understood that the above-mentioned external reinforcement frame 25 and reinforcement assembly 26 are arranged on the outer wall surface of the side inner panel 1 to avoid occupying the inner space, that is, while ensuring a large space inside the vehicle, the rigidity of the side inner panel 1 is improved, which is beneficial to ensure the overall rigidity of the vehicle body.

[0060] In one embodiment, if Figure 1 Combination Figure 7As shown, part of the upper wall plate 11 is located between the reinforcement assembly 26 and the third bracket 213. The third bracket 213 is provided with a mounting plate 5 for mounting a shock absorber at a position below the transverse plate portion 2131, the mounting plate 5 is connected to the third bracket 213, and a cavity 2132 is formed between the mounting plate 5, the third bracket 213 and the upper wall plate 11 of the side inner panel 1.

[0061] It is understandable that, since the overlapped part of the lower reinforcing arm 23, the front reinforcing arm 21 and the rear reinforcing arm 22 covers the top of the rear wheel housing 12, that is, covers the transverse plate 2131, the strength of the transverse plate 2131 is increased. The mounting plate 5 for mounting the shock absorber is located below the transverse plate 2131, and forms a cavity 2132 with the third bracket 213 and the upper wall plate 11, which improves the rigidity of the rear structure of the vehicle body at the mounting point of the shock absorber, improves the vibration isolation effect of the vehicle body, reduces the dynamic force transmitted from the vehicle chassis to the vehicle body, and thus reduces the noise inside the vehicle.

[0062] In one embodiment, the third bracket 213 further includes a flange 2133, and at least two adjacent edges of the transverse plate portion 2131 extend downward to form the aforementioned flange 2133, and the flange 2133 is located on the side of the transverse plate portion 2131 away from the upper wall plate 11. The peripheral edge of the mounting plate 5 extends downward to form a convex edge 51, and a portion of the outer wall surface of the convex edge 51 abuts against the inner wall surface of the flange 2133, and another portion of the outer wall surface of the convex edge 51 abuts against the inner wall surface of the upper wall plate 11, so that the aforementioned cavity 2132 is formed between the upper wall plate 11, the third bracket 213, the mounting plate 5 and the convex edge 51. The aforementioned design further increases the reliability of the cavity formation and further improves the rigidity of the rear structure of the vehicle body.

[0063] like Figure 4 As shown, the inner wall surface of the second bracket 212 and the inner wall surface of the third bracket 213 are both provided with reinforcing ribs 214 extending along the length direction of the front reinforcing arm 21. When the second bracket 212 is in a state of being overlapped on the third bracket 213, the reinforcing ribs 214 of the second bracket 212 are connected with the reinforcing ribs 214 of the third bracket 213. In one embodiment, a part of the wall plate of the second bracket 212 is arched upward to form its own reinforcing ribs 214. At this time, the second bracket 212 forms a groove at the position corresponding to the reinforcing rib 214, and a part of the reinforcing rib 214 of the third bracket 213 is located in the aforementioned groove. In another embodiment, the reinforcing rib 214 is formed on the inner wall surface of the second bracket 212. In order to further improve the rigidity at the mounting plate 5, the second bracket 212 and the third bracket 213 each have two reinforcing ribs 214, and they are arranged at intervals along the front-to-back direction x.

[0064] It can be understood that the arrangement of the above-mentioned reinforcing ribs 214 and the front reinforcing arm 21 improves the stiffness of the shock absorber installation point, improves the vehicle body vibration isolation effect, reduces the dynamic force transmitted from the vehicle chassis to the vehicle body, and thus reduces the noise inside the vehicle.

[0065] like Figure 2 As shown, the front edge of the rear wheel cover 12 is used to connect with the rear frame 6 of the door frame behind the vehicle body, and a connecting shell 27 is installed on the inner wall surface of the rear wheel cover 12. The connecting shell 27 is at least partially located in front of the lower reinforcing arm 23, and the connecting shell 27 and the inner wall surface of the rear wheel cover 12 define a third space. The connecting shell 27 is provided with a mounting hole 2722 for mounting a seat.

[0066] It can be understood that the connecting shell 27 not only forms the installation position of the seat, but also serves as a part of the rear structure of the vehicle body, forming a third space with the inner wall surface of the rear wheel cover 12, which is beneficial to improve the strength and rigidity at the seat installation position, and is beneficial to further improve the torsional mode and durability of the vehicle, while improving the road noise problem caused by the vibration of the rear structure of the vehicle body, reducing the dynamic force transmitted from the chassis of the vehicle to the vehicle body, and thereby reducing the noise inside the vehicle, that is, the vibration isolation effect is good.

[0067] In one embodiment, the connecting shell 27 is an integrally formed part. Figure 2 As shown, the connecting shell 27 includes a front shell 271 and a rear shell 272 which are connected in sequence from front to rear. The front edge of the front shell 271 overlaps the inner wall surface of the rear frame 6, and the rear edge of the rear shell 272 is located between the inner wall surface of the rear wheel housing 12 and the lower reinforcing arm 23. The front shell 271, the rear shell 272 and the inner wall surface of the rear wheel housing 12 define the third space. In this embodiment, the rear shell 272 has a boss 2721 which partially protrudes away from the rear wheel housing 12, and the mounting hole 2722 is located on the boss 2721 of the rear shell 272. In this embodiment, the mounting hole 2722 is located on the boss 2721 and is located between the front reinforcing arm 21 and the rear longitudinal beam 41.

[0068] In addition to screw connection, other fixing methods such as welding and the like may also be used for the above-mentioned connection method.

[0069] The present application also provides a vehicle including the above-mentioned rear vehicle body structure, and the vehicle is an automobile, such as an SUV model.

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A rear body structure for a vehicle, characterized in that: include: A side enclosure inner panel (1) is arranged vertically, and the side enclosure inner panel (1) comprises an upper wall panel (11) and a rear wheel cover (12) which are sequentially connected from top to bottom; A C-ring assembly (2) is connected to the inner wall surface of the side inner panel (1), the C-ring assembly (2) is Y-shaped, and comprises a vertically arranged lower reinforcing arm (23) and a front reinforcing arm (21) and a rear reinforcing arm (22) arranged in sequence from front to rear, the front reinforcing arm (21) and the rear reinforcing arm (22) both at least partially cover the inner wall surface of the upper wall panel (11), the upper end of the lower reinforcing arm (23) is overlapped with the front reinforcing arm (21) and the rear reinforcing arm (22) respectively, and the lower reinforcing arm (23) at least partially covers the inner wall surface of the rear wheel cover (12), and the front reinforcing arm (21), the rear reinforcing arm (22) and the lower reinforcing arm (23) all form a cavity with the inner wall surface of the side inner panel (1).

2. The vehicle body rear structure according to claim 1, characterized in that: The rear wheel cover (12) protrudes inwardly along the direction of its wall thickness, and the overlapping parts of the lower reinforcing arm (23), the front reinforcing arm (21) and the rear reinforcing arm (22) cover the top of the rear wheel cover (12).

3. The vehicle body rear structure according to claim 2, characterized in that: The front reinforcing arm (21) is arranged vertically and includes a first bracket (211), a second bracket (212) and a third bracket (213); the third bracket (213) includes a transverse plate portion (2131) covering the top of the rear wheel cover (12); the first bracket (211) and the second bracket (212) are connected in sequence from top to bottom; and the lower area of ​​the second bracket (212) is connected to the third bracket (213).

4. The vehicle body rear structure according to claim 3, characterized in that: The rear reinforcing arm (22) includes an upper bracket (221) and a lower bracket (222) connected in sequence from top to bottom, and at least a portion of the lower area of ​​the lower bracket (222) covers the connection between the transverse plate portion (2131) and the rear wheel cover (12). The third bracket (213) is provided with a mounting plate (5) for mounting a shock absorber at a position below the transverse plate portion (2131), and the mounting plate (5) is connected to the third bracket (213), and a cavity (2132) is formed between the third bracket (213), the mounting plate (5) and the upper wall plate (11) of the side inner plate (1).

5. The vehicle body rear structure according to claim 1, characterized in that: An outer reinforcing frame (25) is provided on the outer wall surface of the rear wheel cover (12) at a position corresponding to the lower reinforcing arm (23); the outer reinforcing frame (25) extends along the length direction of the lower reinforcing arm (23); and a first space is defined between the outer reinforcing frame (25) and the outer wall surface of the rear wheel cover (12).

6. The vehicle body rear structure according to claim 1, characterized in that: A reinforcing component (26) is provided on the outer wall surface of the upper wall plate (11) at a position corresponding to the front reinforcing arm (21); the reinforcing component (26) extends along the length direction of the front reinforcing arm (21) and defines a second space with the outer wall surface of the upper wall plate (11).

7. The vehicle body rear structure according to claim 1, characterized in that: A connecting shell (27) is installed on the inner wall surface of the rear wheel cover (12), and the connecting shell (27) is at least partially located in front of the lower reinforcing arm (23). The connecting shell (27) and the inner wall surface of the rear wheel cover (12) define a third space, and the connecting shell (27) is provided with a mounting hole (2722) for mounting a seat.

8. The vehicle body rear structure according to any one of claims 1 to 7, characterized in that: The vehicle body also includes a D-ring (3), wherein the D-ring (3) includes two D-pillars (31) arranged at intervals along the left-right direction (y) of the vehicle body, and an upper cross beam (32) and a rear cross beam (33) arranged in sequence from top to bottom, wherein the upper cross beam (32) and the rear cross beam (33) both extend along the left-right direction (y) of the vehicle body, the upper end of the D-pillar (31) is connected to the corresponding end of the upper cross beam (32) through a connecting head (34), and the lower end of the D-pillar (31) is connected to the corresponding end of the rear cross beam (33), the upper end of the front reinforcing arm (21) is connected to the connecting head (34) on the corresponding side, and the upper end of the rear reinforcing arm (22) is connected to the D-pillar (31) on the corresponding side.

9. The vehicle body rear structure according to claim 8, characterized in that: The vehicle further comprises a frame (4) located below the upper wall plate (11), the frame (4) comprising two rear longitudinal beams (41) arranged at intervals along the left-right direction (y) of the vehicle body and a lower cross beam (42) located between the two rear longitudinal beams (41), the rear longitudinal beams (41) extending along the front-rear direction (x) of the vehicle body, the side of the rear longitudinal beams (41) extending along the front-rear direction (x) of the vehicle body is connected to the inner wall surface of the rear wheel cover (12), and the rear end of the rear longitudinal beams (41) is connected to the rear enclosure cross beam (33), the lower cross beam (42) extends along the left-right direction (y) of the vehicle body, and the left and right ends of the lower cross beam (42) are respectively connected to the rear longitudinal beams (41) on the corresponding sides, and the lower end of the lower reinforcing arm (23) is overlapped on the rear longitudinal beam (41) and connected to the lower cross beam (42).

10. A vehicle, characterized in that: The vehicle body rear structure comprises any one of claims 1 to 9, wherein the vehicle body rear structure has two side inner panels (1), and each of the side inner panels (1) corresponds to one C-ring assembly (2).

Images