CN113830181A - rear body structure - Google Patents

Abstract

The invention discloses a rear body structure, comprising a C-pillar annular structure, a tower base annular structure and a connecting structure, wherein the connecting structure passes through and connects the C-pillar annular structure and the tower base annular structure, and the connecting structure is connected to the surrounding structure. The C-pillar annular structure and the tower base annular structure cooperate to form an H-shaped reinforcing structure. The connection structure of the rear body structure connects the C-pillar ring structure and the tower ring structure throughly to form a continuous force transmission channel. The seat ring structure effectively disperses the impact force to all parts of the body, improving the overall performance of the car.

Description

rear body structure

technical field

The invention relates to the field of automobile structure structure, in particular to a rear body structure.

Background technique

With the rapid development of automobile technology, people have higher and higher requirements for automobile performance. The quality of the main body structure directly affects the performance of the whole vehicle. In particular, the rear body structure is relatively complex. The rear body structure is an important structure that composes the car and has an important impact on the overall performance. Effectively improve overall performance.

However, in the prior art, the rear body structure has the following problems: the design of the rear body structure is unreasonable, in order to avoid the sunroof, the force transmission structure of the rear body structure is often incoherent, and the force transmission effect is poor; There are few structural associations and no connectivity, and each transmits force, which is not conducive to the overall structure; in order to strengthen the bending and torsional rigidity of the whole vehicle, beams are arranged on the car floor, which takes up space and prevents the seat from being folded to the maximum opening angle.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a rear body structure to solve the problems of incoherent force transmission structures existing in the rear body structure, less correlation between each force transmission structure, and space occupied by arranging beams on the vehicle floor.

The present invention provides a rear body structure, comprising a C-pillar annular structure, a tower annular structure and a connecting structure, wherein the connecting structure passes through and connects the C-pillar annular structure and the tower annular structure, and the connecting structure is connected to the annular structure of the tower. The C-pillar annular structure and the tower base annular structure cooperate to form an H-shaped reinforcing structure.

Preferably, the rear body structure includes a left rear side member and a right rear side member;

The C-pillar annular structure includes a first beam, a left rear side wall front support structure and a right rear side wall front support structure connected with both ends of the first beam, for connecting the left rear side wall front support structure and the sunroof rear beam of the front support structure of the right rear side wall;

The left rear longitudinal beam is connected with the first transverse beam and the left rear side wall front support structure; the right rear longitudinal beam is connected with the first transverse beam and the right rear side wall front support structure.

Preferably, the front support structure of the left rear sidewall includes a left rear sidewall front connecting plate connected with the first cross member and the left rear longitudinal beam, a left rear sidewall front connecting plate connected with the left rear sidewall front connecting plate a side wall front bracket, a left rear side wall front reinforcement plate connected with the left rear side wall front bracket, and a left rear side wall inner plate connected with the left rear side wall front reinforcement plate; the left rear side wall inner plate the plate is connected with the rear beam of the skylight;

The right rear side wall front support structure includes a right rear side wall front connecting plate connected with the first cross member and the right rear longitudinal beam, and a right rear side wall front connecting plate connected with the right rear side wall front connecting plate. a bracket, a right rear side wall front reinforcement plate connected with the right rear side wall front bracket, and a right rear side wall inner plate connected with the right rear side wall front reinforcement plate; the right rear side wall inner plate is connected with all the The rear beam of the skylight is connected.

Preferably, the connecting structure includes a left rear longitudinal beam and a right rear longitudinal beam; the tower ring structure includes a second transverse beam, a left spring tower, a right spring tower, a left rear side wall rear support structure, a right rear side The rear support structure and the rear wall beam;

Both ends of the second transverse beam are respectively connected with the left rear longitudinal beam and the right rear longitudinal beam;

One end of the left spring tower is connected with the second beam and the left rear longitudinal beam, and the other end is connected with the left rear side wall rear support structure;

One end of the right spring tower is connected with the second beam and the right rear longitudinal beam, and the other end is connected with the right rear side wall rear support structure;

One end of the rear enclosure beam is connected to the left rear side enclosure rear support structure, and the other end is connected to the right rear side enclosure rear support structure.

Preferably, the left rear side wall rear support structure comprises a left rear side wall rear connecting plate connected with the left spring tower, a left rear side wall rear bracket connected with the left rear side wall rear connecting plate and the left rear side enclosure rear reinforcement plate connected to the left rear side enclosure rear bracket, the right rear side enclosure rear reinforcement plate is connected with the rear enclosure beam;

The right rear side wall rear support structure comprises a right rear side wall rear connecting plate connected with the right spring tower seat, a right rear side wall rear bracket connected with the right rear side wall rear connecting plate, and a right rear side wall rear bracket connected with the right rear side wall rear connecting plate. The right rear side enclosure rear reinforcing plate connected to the rear side enclosure rear bracket is connected with the rear enclosure beam.

Preferably, the connecting structure includes a left rear wheel house bracket reinforcement plate and a right rear wheel house bracket reinforcement plate; the H-shaped reinforcement structure includes a left H-shaped reinforcement structure and a right H-shaped reinforcement structure;

The left rear wheel house bracket reinforcement plate cooperates with the left rear side wall front bracket and the left rear side wall rear bracket to form a left H-shaped reinforcement structure;

The right rear wheel house bracket reinforcement plate cooperates with the right rear side wall front bracket and the right rear side wall rear bracket to form a right H-shaped reinforcement structure.

Preferably, the rear body structure further comprises a left rear wheel cover and an outer reinforcement plate of the left rear wheel cover;

The left rear wheel house outer reinforcement plate is installed on the outer side of the left rear wheel house, the left rear wheel house bracket reinforcement plate is installed in the inner side of the left rear wheel house, and the left rear wheel house bracket reinforcement plate is installed on the inner side of the left rear wheel house. Both ends are respectively inserted with the left rear side wall front connecting plate and the left rear side wall rear connecting plate; the left rear wheel house is connected with the left rear longitudinal beam and the left spring tower;

The rear body structure further includes a right rear wheel cover and a right rear wheel cover outer reinforcement plate; the right rear wheel cover outer reinforcement plate is installed on the outer side of the right rear wheel cover, and the right rear wheel cover bracket reinforcement plate Installed on the inner side of the right rear wheel cover, the two ends of the right rear wheel cover bracket reinforcing plate are respectively inserted into the right rear side wall front connecting plate and the right rear side wall rear connecting plate; the right rear wheel The cover is connected to the right rear longitudinal member and the right spring tower.

Preferably, the rear body structure further includes a D-pillar annular structure, and the C-pillar annular structure and the D-pillar annular structure are throughly connected through the tower base annular structure.

Preferably, the D-pillar annular structure includes a rear enclosure frame, a left D-pillar and a right D-pillar; both ends of the left D-pillar are respectively connected to the rear enclosure frame and the rear enclosure beam; the right D-pillar Both ends of the rear enclosure are respectively connected with the rear enclosure frame and the rear enclosure beam.

Preferably, the rear body structure further includes a left triangular wedge structure and a right triangular wedge structure; the left rear longitudinal beam, the left spring tower, the left rear wheel house and the outer reinforcement of the left rear wheel house The plate forms the first side of the left triangular wedge-shaped structure; the left rear side wall rear connecting plate, the left rear side wall rear bracket, the left rear side wall rear reinforcing plate and the left rear side wall inner plate form the left rear side wall the second side of the triangular wedge structure; the left D-pillar and the rear surround form the third side of the left triangular wedge structure;

The left rear longitudinal beam is connected with the rear enclosure frame, and the left rear side enclosure inner panel is connected with the left D-pillar;

The right rear longitudinal beam, the right spring tower, the right rear wheel house and the outer reinforcing plate of the right rear wheel house form the first side of the right triangular wedge-shaped structure; the right rear side wall rear connecting plate, The right rear side enclosure rear bracket, the right rear side enclosure rear reinforcing plate and the right rear side enclosure inner panel form the second side of the right triangular wedge-shaped structure; the left D-pillar and the rear enclosure frame form a right the third side of the triangular wedge structure;

The right rear longitudinal beam is connected with the rear enclosure frame, and the right rear side enclosure inner panel is connected with the right D-pillar.

The embodiment of the present invention provides a rear body structure, and the connection structure of the rear body structure connects the C-pillar ring structure and the tower ring structure throughly to form a continuous force transmission channel. When the rear body structure is collided, the complete And the through-connected C-pillar ring structure and tower ring structure effectively disperse the impact force to all parts of the body, improving the overall performance of the car.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the drawings that are used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. , for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

FIG. 1 is a schematic structural diagram of a rear vehicle body structure from one perspective in an embodiment of the present invention;

2 is a schematic structural diagram of the rear body structure from another perspective in an embodiment of the present invention;

3 is a side view of a rear body structure in an embodiment of the present invention;

4 is a bottom view of a rear body structure in an embodiment of the present invention.

in,

10. C-pillar annular structure; 11. The first beam; 12. The first right beam reinforcing plate; 13. Front support structure of the right rear side wall; 131. The front connecting plate of the right rear side wall; 132. The front bracket of the right rear side wall ; 133. Front reinforcement plate of right rear side wall; 134. Inner plate of right rear side wall; 14. Rear beam of sunroof;

20. Tower ring structure; 21. Second beam; 22. Second right beam reinforcing plate; 23. Right spring tower; 24. Right rear side wall rear support structure; 241. Right rear side wall rear connecting plate; 242 , right rear side wall rear bracket; 243, right rear side wall rear reinforcement plate; 25, rear wall beam;

31. Right rear longitudinal beam; 32. Right H-shaped reinforcement structure; 33. Left H-shaped reinforcement structure;

40. D-pillar annular structure; 41. Rear enclosure; 42. Right D-pillar;

50. Right rear wheel cover; 51. Right rear wheel cover outer reinforcement plate; 52. Right rear wheel cover bracket reinforcement plate.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", The orientations or positional relationships indicated by "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, It is only for the convenience of describing the present invention and simplifying the description, not to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The embodiment of the present invention provides a rear body structure, and the left and right side structures of the rear body structure are symmetrically arranged. Therefore, to avoid repetition of the drawings, the drawings illustrate the right side structure of the rear body structure.

An embodiment of the present invention provides a rear vehicle body structure. As shown in FIGS. 1-4 , the rear vehicle body structure includes a C-pillar annular structure 10 , a tower base annular structure 20 and a connecting structure. The connecting structure passes through and connects the C-pillar annular structure 10 and The tower ring structure 20, the connection structure cooperates with the C-pillar ring structure 10 and the tower ring structure 20 to form an H-shaped reinforcing structure.

The connection structure of the present embodiment connects the C-pillar ring structure 10 and the tower ring structure 20 throughly to form a coherent force transmission channel. When the rear body structure is impacted, the complete and through-connected C-pillar ring structure 10 and the tower ring structure 20 can be used. The tower ring structure 20 effectively disperses the impact force to all parts of the vehicle body, thereby improving the overall performance of the vehicle. The connecting structure cooperates with the C-pillar annular structure 10 and the tower annular structure 20 to form an H-shaped reinforcing structure, therefore, the rigidity of the rear body structure can be enhanced, making the rear body structure more stable. Specifically, when the side of the vehicle is collided, the impact force generated at this time is first transmitted to the C-pillar annular structure 10, and then transmitted to the tower ring structure 20 through the connecting structure; when the vehicle bottom is collided, the impact force generated at this time is first transmitted. to the tower ring structure 20, and then transmitted to the C-pillar ring structure 10 through the connecting structure, so that the impact force is dispersed into the whole vehicle.

In one embodiment, as shown in FIG. 1 , the rear body structure further includes a left rear longitudinal beam and a right rear longitudinal beam 31 ; the C-pillar annular structure 10 includes a first beam The rear side wall front support structure and the right rear side wall front support structure 13, the sunroof rear beam 14 for connecting the left rear side wall front support structure and the right rear side wall front support structure 13; the left rear longitudinal beam and the first beam 11 It is connected with the left rear side wall front support structure; the right rear longitudinal beam 31 is connected with the first cross beam 11 and the right rear side wall front support structure 13 .

Specifically, both ends of the first cross member 11 are respectively connected with the left rear side wall front support structure and the right rear side wall front support structure 13, and the left rear side member and the right rear side member 31, and the left rear side member and the left rear side wall front support The structure is connected, the right rear longitudinal beam 31 is connected with the right rear side wall front support structure 13, and then the left rear side wall front support structure and the right rear side wall front support structure 13 are connected with the sunroof rear beam 14, thereby forming a complete and The continuous C-pillar annular structure 10, because the C-pillar annular structure 10 is a complete and coherent ring, can transmit the impact force continuously, so as to disperse the impact force into the vehicle body, and improve the torsional rigidity and compressive capacity of the rear vehicle body, Avoid splitting the rear body structure due to concentrated impact force.

The first transverse beam 11 and the left rear longitudinal beam are connected by the first left transverse beam reinforcement plate, and the first transverse beam 11 and the right rear longitudinal beam 31 are connected by the first right transverse beam reinforcement plate 12 .

In one embodiment, as shown in FIG. 1 , the front support structure of the left rear sidewall includes a left rear sidewall front connecting plate connected with the first cross member 11 and the left rear longitudinal beam, and a left rear sidewall front connecting plate connected with the left rear sidewall front connecting plate. The left rear side wall front bracket, the left rear side wall front reinforcement plate connected with the left rear side wall front bracket, and the left rear side wall inner plate connected with the left rear side wall front reinforcement plate; The cross beam 14 is connected; the right rear side wall front support structure 13 includes a right rear side wall front connecting plate 131 connected with the first cross beam 11 and the right rear longitudinal beam 31, and a right rear side connecting plate 131 connected with the right rear side wall front connecting plate 131 The front wall bracket 132, the right rear wall front reinforcing plate 133 connected with the right rear wall front bracket 132, and the right rear wall inner plate 134 connected with the right rear wall front reinforcing plate 133; the right rear wall inner plate 134 Connected to the rear beam 14 of the sunroof.

Specifically, both ends of the first cross member 11 are respectively connected with the left rear longitudinal beam and the right rear longitudinal beam 31 , the left rear longitudinal beam is connected with the left rear side wall front connecting plate, and the left rear side wall front connecting plate is connected with the left rear side The front bracket is connected to the front bracket, the front bracket of the left rear wall is connected to the front reinforcement plate of the left rear wall, the front reinforcement plate of the left rear wall is connected to the inner plate of the left rear wall, and the inner plate of the left rear wall is connected to one end of the rear beam 14 of the sunroof. Connected; the right rear longitudinal beam 31 is connected with the right rear side wall front connecting plate 131, the right rear side wall front connecting plate 131 is connected with the right rear side wall front bracket 132, the right rear side wall front bracket 132 and the right rear side wall front reinforcement The plate 133 is connected, the right rear side wall front reinforcing plate 133 is connected with the right rear side wall inner plate 134, and the right rear side wall inner plate 134 is connected with the other end of the sunroof rear beam 14, thus forming a continuous C-pillar annular structure 10 , in order to transmit force coherently.

In one embodiment, as shown in FIGS. 1 and 4 , the rear body structure includes a left rear longitudinal beam and a right rear longitudinal beam 31 ; the rear body structure further includes a second transverse beam 21 , a left spring tower seat, and a right spring tower. The seat 23, the left rear side wall rear support structure, the right rear side wall rear support structure 24 and the rear wall beam 25; the two ends of the second beam 21 are respectively connected with the left rear longitudinal beam and the right rear longitudinal beam 31, and one end of the left spring tower seat is It is connected with the second cross beam 21 and the left rear longitudinal beam, and the other end is connected with the left rear side wall rear support structure; one end of the right spring tower 23 is connected with the second cross beam 21 and the right rear longitudinal beam 31, and the other end is connected with the right rear side wall The rear support structure 24 is connected; one end of the rear wall cross member 25 is connected with the left rear side wall rear support structure, and the other end is connected with the right rear side wall rear support structure 24 .

In this embodiment, both ends of the second beam 21 are connected to the left rear longitudinal beam and the right rear longitudinal beam 31 respectively, one end of the left spring tower is connected to the second beam 21 and the left rear longitudinal beam, and the other end is connected to the left rear side enclosure. The support structure is connected; one end of the right spring tower 23 is connected with the second beam 21 and the right rear longitudinal beam 31, and the other end is connected with the right rear side wall rear support structure 24; one end of the rear wall beam 25 is connected with the left rear side wall rear support structure The other end is connected with the right rear side wall rear support structure 24, thus forming a complete and coherent tower ring structure 20, so that the impact force can be transmitted continuously. It can be understood that since the tower ring structure 20 is provided with the left spring tower and the right spring tower 23, the tower ring structure 20 directly bears the impact force from the chassis, and this embodiment will form a complete and continuous tower ring Structure 20, which can transmit the impact force continuously to disperse the impact force into the vehicle body.

Wherein, the second cross beam 21 and the left rear longitudinal beam are connected by a second left cross beam reinforcing plate, and the second cross beam 21 and the right rear longitudinal beam 31 are connected by a second right cross beam reinforcing plate 22 .

In one embodiment, as shown in FIGS. 1 and 2 , the left rear side wall rear support structure includes a left rear side wall rear connecting plate connected with the left spring tower, a left rear side wall connecting plate connected with the left rear The side wall rear bracket and the left rear side wall rear reinforcement plate connected with the left rear side wall rear bracket; the left rear side wall rear reinforcement plate is connected with the rear wall beam 25; the right rear side wall rear support structure 24 includes and the right spring tower seat 23 connected with the right rear side wall rear connecting plate 241, the right rear side wall rear bracket 242 connected with the right rear side wall rear connecting plate 241 and the right rear side wall rear reinforcing plate 243 connected with the right rear side wall rear bracket 242; The right rear side wall rear reinforcing plate 243 is connected to the rear wall cross member 25 .

In this embodiment, both ends of the second beam 21 are connected to the left rear longitudinal beam and the right rear longitudinal beam 31 respectively, one end of the left spring tower is connected to the second beam 21 and the left rear longitudinal beam, and the other end is connected to the left rear side wall The rear connecting plate is connected, the left rear side wall rear connecting plate is connected with the left rear side wall rear bracket, the left rear side wall rear bracket is connected with the left rear side wall rear reinforcement plate, and the left rear side wall rear reinforcement plate is connected with the rear wall beam 25; One end of the right spring tower 23 is connected with the second cross beam 21 and the right rear longitudinal beam 31, the other end is connected with the right rear side wall rear connecting plate 241, and the right rear side wall rear connecting plate 241 is connected with the right rear side wall. The bracket 242 is connected, the right rear side wall rear bracket 242 is connected with the right rear side wall rear reinforcement plate 243, and the right rear side wall rear reinforcement plate 243 is connected with the rear wall beam 25; therefore, the tower ring structure 20 is formed so that it can be coherent transfer force. Wherein, the rear wall beam 25 is connected with the right rear side wall inner panel 134 so as to connect the C-pillar ring structure 10 and the tower base ring structure 20 .

In one embodiment, as shown in FIG. 1 and FIG. 2 , the connecting structure includes a left rear wheel house bracket reinforcement plate and a right rear wheel house bracket reinforcement plate 52; the H-shaped reinforcement assembly includes a left H-shaped reinforcement structure 33 and a right H-shaped reinforcement structure. type reinforcement structure 32; the left rear wheel house support reinforcement plate cooperates with the left rear side wall front bracket and the left rear side wall rear bracket to form a left H-shaped reinforcement structure 33; the right rear wheel house support reinforcement plate 52 and the right rear side wall front bracket The right H-shaped reinforcing structure 32 is formed in cooperation with the right rear side wall rear bracket 242 .

In this embodiment, the left rear wheel house support reinforcement plate cooperates with the left rear side wall front support and the left rear side wall rear support to form the left H-shaped reinforcement structure 33; the right rear wheel house support reinforcement plate 52 and the right rear side wall front support 132 and the right rear side wall rear bracket 242 cooperate to form the right H-shaped reinforcing structure 32, therefore, the rigidity of the area of the left rear wheel cover and the right rear wheel cover 50 can be further improved, that is, the left rear wheel cover and the right rear wheel cover can be improved. The bending-torsional stiffness in the area of 50 can understandably be achieved through the left rear longitudinal beam, the right rear longitudinal beam 31, the left H-shaped reinforcement structure 33 and the right H-shaped reinforcement structure 32. C-pillar ring structure 10 and tower ring structure 20 can be achieved. Coherent, to achieve coherent force transmission. Specifically, when the side of the car is collided, the impact force generated at this time is first transmitted to the C-pillar annular structure 10, and then to the tower annular structure 20 through the left H-shaped reinforcement structure 33 and the right H-shaped reinforcement structure 32; After being collided, the impact force generated at this time is first transmitted to the tower ring structure 20, and the impact force is transmitted to the C-pillar ring structure 10 through the left H-shaped reinforcement structure 33 and the right H-shaped reinforcement structure 32, so that the impact force is dispersed to the whole vehicle. middle.

In one embodiment, as shown in FIG. 2 and FIG. 4 , the rear body structure further includes a left rear wheel cover and an outer reinforcement plate of the left rear wheel cover; the outer reinforcement plate of the left rear wheel cover is installed on the outer side of the left rear wheel cover, The reinforcement plate of the left rear wheel cover bracket is installed on the inner side of the left rear wheel cover, and the two ends of the reinforcement plate of the left rear wheel cover bracket are respectively inserted into the front connecting plate of the left rear side wall and the rear connecting plate of the left rear side wall; the left rear wheel cover Connected with the left rear longitudinal beam and the left spring tower;

The rear body structure also includes a right rear wheel house 50 and a right rear wheel house outer reinforcing plate 51; Inside the rear wheel house 50, the two ends of the right rear wheel house support reinforcing plate 52 are respectively inserted with the right rear side wall front connecting plate 131 and the right rear side wall rear connecting plate 241; the right rear wheel cover 50 is connected with the right rear longitudinal beam 31 is connected to the right spring tower 23 .

The inner side refers to the side corresponding to the inside of the vehicle body, and the outer side refers to the side corresponding to the outside of the vehicle.

In this embodiment, the two ends of the reinforcement plate of the left rear wheel house bracket are respectively inserted into the front connecting plate of the left rear side wall and the rear connecting plate of the left rear side wall to connect the left rear wheel cover and the left rear longitudinal beam, so as to strengthen the left Stiffness in the rear wheel well area and space saving. Similarly, the two ends of the right rear wheel house support reinforcing plate 52 are respectively inserted into the right rear side wall front connecting plate 131 and the right rear side wall rear connecting plate 241 to connect the right rear wheel house 50 and the right rear longitudinal beam 31 . , thereby enhancing the rigidity of the right rear wheel house 50 area and saving space.

In the prior art, in order to enhance the rigidity of the rear wheel house area, reinforcement plates are usually installed on the left rear wheel house and the right rear wheel house 50, and the reinforcement plates are connected by installing a cross member on the floor, which occupies the rear space of the vehicle body More, the space for the back of the seat to be placed is reduced, and therefore, the angle of the back of the seat to be placed is limited. In this embodiment, the two ends of the reinforcement plate of the left rear wheel house bracket are respectively inserted into the front connecting plate of the left rear side wall and the rear connecting plate of the left rear side wall, and the two ends of the reinforcement plate 52 of the right rear wheel house bracket are respectively connected to the rear right side wall. The side wall front connecting plate 131 and the right rear side wall rear connecting plate 241 are plugged to connect the right rear wheel house 50 and the right rear side member 31, so the rigidity of the left rear wheel house and the right rear wheel house 50 can be improved, In addition, the left rear wheel house bracket reinforcement plate, the left rear side wall front connecting plate and the left rear side wall rear connecting plate are provided on the side where the vehicle body is assembled, the right rear wheel house bracket reinforcement plate 52, the right rear side wall front connecting plate 131 and The rear connecting plate 241 of the right rear side panel is provided on the other side of the assembled body, so it can provide space for the seat behind the seat, improve the ride comfort of the whole vehicle, and meet the customer's requirements for the seat reclining angle to the greatest extent.

In one embodiment, as shown in FIG. 1 and FIG. 2 , the rear body structure further includes a D-pillar annular structure 40 , and the C-pillar annular structure 10 and the D-pillar annular structure 40 are connected through the tower annular structure 20 .

In this embodiment, the C-pillar annular structure 10 and the D-pillar annular structure 40 are connected through the tower base annular structure 20 . Therefore, when subjected to a collision, the C-pillar annular structure 10 , the D-pillar annular structure 40 and the tower base annular structure 20 are three The impact force is transmitted between them, the force transmission path is optimized, and the impact force is transmitted to the whole body.

In one embodiment, as shown in Figures 2 and 3, the rear body structure further includes a rear enclosure frame 41, a left D-pillar and a right D-pillar 42; The cross beam 25 is connected; the two ends of the right D-pillar 42 are respectively connected with the rear enclosure frame 41 and the rear enclosure cross beam 25 .

In this embodiment, the rear enclosure frame 41, the left D-pillar and the right D-pillar 42 and the rear enclosure beam 25 form a D-pillar annular structure 40. Since the D-pillar annular structure 40 is a complete and coherent ring, the impact force can be transmitted continuously, In order to disperse the impact force into the body, the torsional rigidity and compressive capacity of the rear body are improved, and the impact force is prevented from being concentrated and the rear body structure is cracked.

As an example, when the side of the vehicle is collided, the impact force generated at this time is first transmitted to the C-pillar annular structure 10, and then transmitted to the tower annular structure 20 through the left H-shaped reinforcement structure 33 and the right H-shaped reinforcement structure 32, and then through the The tower ring structure 20 is transmitted to the D-pillar ring structure 40, so as to realize the transmission of the impact force to the body and improve the performance of the whole vehicle; when the rear of the car is collided, the impact force generated at this time is first transmitted to the D-pillar ring structure 40, and then transmitted to the tower ring structure 20, and then transmitted to the C-pillar ring structure 10 through the left H-shaped reinforcement structure 33 and the right H-shaped reinforcement structure 32 to disperse the impact force to the whole vehicle; The impact force is first transmitted to the tower ring structure 20, transmitted to the C-pillar ring structure 10 through the left H-shaped reinforcement structure 33 and the right H-type reinforcement structure 32, and passed through the tower ring structure 20D to the column ring structure 40, so that the impact force is dispersed to in the vehicle.

In one embodiment, as shown in FIGS. 1 , 2 and 3 , the rear body structure includes a left triangular wedge structure and a right triangular wedge structure; a left rear side member, a left spring tower seat and a left rear wheel cover, The outer reinforcement plate of the left rear wheel house forms the first side of the left triangular wedge structure; the rear connecting plate of the left rear side wall, the rear bracket of the left rear side wall, the rear reinforcement plate of the left rear side wall and the inner plate of the left rear side wall form the left triangular wedge shape The second side of the structure; the left D-pillar and the rear enclosure frame 41 form the third side of the left triangular wedge-shaped structure; wherein, the left rear longitudinal beam is connected to the rear enclosure frame 41, and the left rear side inner panel is connected to the left D-pillar; The rear longitudinal beam 31, the right spring tower 23, the right rear wheel house 50 and the right rear wheel house outer reinforcing plate 51 form the first side of the right triangular wedge structure; the right rear side wall rear connecting plate 241, the right rear side wall rear bracket 242, the right rear side wall rear reinforcing plate 243 and the right rear side wall inner plate 134 form the second side of the right triangular wedge structure; the right D-pillar 42 and the rear surround frame 41 form the third side of the right triangle wedge structure. Among them, the right rear side member 31 is connected to the rear enclosure frame 41 , and the right rear side enclosure inner panel 134 is connected to the right D-pillar 42 .

In this embodiment, the left triangular wedge structure and the right triangular wedge structure are formed, which can effectively enhance the stability of the rear body structure, so as to improve the performance of the whole vehicle.

It can be understood that the C-pillar ring structure 10 and the tower ring structure 20 are connected through the connecting structure to form an H-shaped reinforcing structure, and the D-pillar ring structure 40 and the tower ring structure 20 are connected by a left triangular wedge structure and a right triangle wedge. The structural connection can effectively strengthen the connection between the C-pillar annular structure 10 , the tower base annular structure 20 and the D-pillar annular structure 40 to form a complete through force transmission path, and at the same time can effectively strengthen the rear body.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to implement the foregoing implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the within the protection scope of the present invention.

Claims (10)

1. The rear vehicle body structure is characterized by comprising a C-column annular structure, a tower base annular structure and a connecting structure, wherein the connecting structure is in through connection with the C-column annular structure and the tower base annular structure, and the connecting structure is matched with the C-column annular structure and the tower base annular structure to form an H-shaped reinforcing structure.

2. The rear vehicle body structure of claim 1, wherein the rear vehicle body structure includes a left rear side member and a right rear side member;

the C-pillar annular structure comprises a first cross beam, a left rear side wall front supporting structure, a right rear side wall front supporting structure and a skylight rear cross beam, wherein the left rear side wall front supporting structure and the right rear side wall front supporting structure are connected with two ends of the first cross beam;

the left rear longitudinal beam is connected with the first cross beam and the left rear side wall front supporting structure; the right rear longitudinal beam is connected with the first cross beam and the right rear side wall front supporting structure.

3. The rear body structure of claim 2, wherein the left rear side gusset front support structure includes a left rear side gusset front connecting plate connected to the first cross member and the left rear side member, a left rear side gusset front bracket connected to the left rear side gusset front connecting plate, a left rear side gusset front reinforcement plate connected to the left rear side gusset front bracket, and a left rear side gusset inner plate connected to the left rear side gusset front reinforcement plate; the left rear side wall inner plate is connected with the skylight rear cross beam;

the right rear side wall front supporting structure comprises a right rear side wall front connecting plate connected with the first cross beam and the right rear longitudinal beam, a right rear side wall front support connected with the right rear side wall front connecting plate, a right rear side wall front reinforcing plate connected with the right rear side wall front support and a right rear side wall inner plate connected with the right rear side wall front reinforcing plate; the right rear side wall inner plate is connected with the skylight rear cross beam.

4. The rear vehicle body structure of claim 1, wherein the rear vehicle body structure includes a left rear side member and a right rear side member; the tower base annular structure comprises a second cross beam, a left spring tower base, a right spring tower base, a left rear side wall rear supporting structure, a right rear side wall rear supporting structure and a rear wall cross beam;

two ends of the second cross beam are respectively connected with the left rear longitudinal beam and the right rear longitudinal beam;

one end of the left spring tower seat is connected with the second cross beam and the left rear longitudinal beam, and the other end of the left spring tower seat is connected with the left rear side wall rear supporting structure;

one end of the right spring tower seat is connected with the second cross beam and the right rear longitudinal beam, and the other end of the right spring tower seat is connected with the right rear side wall rear supporting structure;

one end of the rear wall cross beam is connected with the left rear side wall rear supporting structure, and the other end of the rear wall cross beam is connected with the right rear side wall rear supporting structure.

5. The rear body structure of claim 4, wherein the left rear side gusset rear support structure includes a left rear side gusset rear connection plate connected to the left spring tower, a left rear side gusset rear bracket connected to the left rear side gusset rear connection plate, and a left rear side gusset rear reinforcement plate connected to the left rear side gusset rear bracket, the right rear side gusset rear reinforcement plate being connected to the rear side rail;

the right rear side wall rear supporting structure comprises a right rear side wall rear connecting plate connected with the right spring tower base, a right rear side wall rear support connected with the right rear side wall rear connecting plate and a right rear side wall rear reinforcing plate connected with the right rear side wall rear support, and the right rear side wall rear reinforcing plate is connected with the rear wall cross beam.

6. The rear vehicle body structure according to claim 5, wherein the connecting structure includes a left rear wheel house bracket reinforcement panel and a right rear wheel house bracket reinforcement panel; the H-shaped reinforcing structure comprises a left H-shaped reinforcing structure and a right H-shaped reinforcing structure;

the left rear wheel cover bracket reinforcing plate is matched with the left rear side wall front bracket and the left rear side wall rear bracket to form a left H-shaped reinforcing structure;

the right rear wheel cover bracket reinforcing plate is matched with the right rear side wall front bracket and the right rear side wall rear bracket to form a right H-shaped reinforcing structure.

7. The rear vehicle body structure of claim 6, further comprising a left rear wheel house and a left rear wheel house outer reinforcement plate;

the left rear wheel cover outer reinforcing plate is arranged on the outer side of the left rear wheel cover, the left rear wheel cover support reinforcing plate is arranged on the inner side of the left rear wheel cover, and two ends of the left rear wheel cover support reinforcing plate are respectively spliced with the left rear side wall front connecting plate and the left rear side wall rear connecting plate; the left rear wheel cover is connected with the left rear longitudinal beam and the left spring tower seat;

the rear vehicle body structure further comprises a right rear wheel cover and a right rear wheel cover outer reinforcing plate; the right rear wheel cover outer reinforcing plate is arranged on the outer side of the right rear wheel cover, the right rear wheel cover bracket reinforcing plate is arranged on the inner side of the right rear wheel cover, and two ends of the right rear wheel cover bracket reinforcing plate are respectively spliced with the right rear side wall front connecting plate and the right rear side wall rear connecting plate; the right rear wheel cover is connected with the right rear longitudinal beam and the right spring tower seat.

8. The rear vehicle body structure of claim 4, further comprising a D-pillar ring structure, wherein the C-pillar ring structure and the D-pillar ring structure are interconnected by the tower ring structure.

9. The rear vehicle body structure of claim 8, wherein the D-pillar ring structure includes a rear enclosure frame, a left D-pillar, and a right D-pillar; two ends of the left D column are connected with the rear surrounding frame and the rear surrounding cross beam respectively; and two ends of the right D column are respectively connected with the rear surrounding frame and the rear surrounding beam.

10. The rear vehicle body structure of claim 9, wherein the rear vehicle body structure further comprises a left triangular wedge structure and a right triangular wedge structure; the left rear longitudinal beam, the left spring tower seat, the left rear wheel cover and the left rear wheel cover outer reinforcing plate form a first side of a left triangular wedge-shaped structure; the left rear side wall rear connecting plate, the left rear side wall rear bracket, the left rear side wall rear reinforcing plate and the left rear side wall inner plate form a second side of a left triangular wedge-shaped structure; the left D column and the rear enclosure frame form a third side of a left triangular wedge-shaped structure; the left rear longitudinal beam is connected with the rear enclosure frame, and the left rear side wall inner plate is connected with the left D column;

the right rear longitudinal beam, the right spring tower seat, the right rear wheel cover and the right rear wheel cover outer reinforcing plate form a first side of a right triangular wedge-shaped structure; the right rear side wall rear connecting plate, the right rear side wall rear support, the right rear side wall rear reinforcing plate and the right rear side wall inner plate form a second side of a right triangular wedge-shaped structure; the left D column and the rear enclosure frame form a third side of a right triangular wedge-shaped structure; the right rear longitudinal beam is connected with the rear surrounding frame, and the right rear side surrounding inner plate is connected with the right D column.

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