CN221233885U

CN221233885U - Rear vehicle body assembly and vehicle

Info

Publication number: CN221233885U
Application number: CN202323007060.XU
Authority: CN
Inventors: 程卫鑫; 陆毅初; 朱灯宏
Original assignee: SAIC GM Wuling Automobile Co Ltd
Current assignee: SAIC GM Wuling Automobile Co Ltd
Priority date: 2023-11-07
Filing date: 2023-11-07
Publication date: 2024-06-28
Anticipated expiration: 2033-11-07

Abstract

The rear vehicle body component comprises a cross beam, a longitudinal beam and a spring mounting seat, wherein the cross beam and the spring mounting seat are connected with the longitudinal beam and extend in a direction away from each other, and at least one end of the cross beam is bent in a direction close to the spring mounting seat along the extending direction of the longitudinal beam. In the rear vehicle body component provided by the application, at least one end of the cross beam is bent in the extending direction of the longitudinal beam towards the direction close to the spring mounting seat so as to reduce the distance between the connecting position of the end part of the cross beam and the longitudinal beam and the distance between the spring mounting seat and the mounting position of the longitudinal beam, thereby reducing the distance of force transmission, improving the transmission efficiency of the external force born by the damping spring to the cross beam through the longitudinal beam, further improving the effect of dispersing the external force born by the damping spring to other parts of the vehicle body through the longitudinal beam and the cross beam, and effectively improving the maximum external force value born by the spring mounting seat, thereby improving the strength and rigidity of the whole vehicle.

Description

Rear vehicle body assembly and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to a rear vehicle body component and a vehicle.

Background

The rear shock-absorbing spring mounting structure of the vehicle is used as an important part in a rear vehicle body component, mainly relates to a rear longitudinal beam, a rear floor welding assembly and a rear torsion beam assembly, and has important influence on the reliability and the driving comfort of the vehicle.

The rear shock-absorbing spring of the vehicle is usually connected with the rear longitudinal beam, when the rear shock-absorbing spring is acted by external force, acting force is transmitted to the rear longitudinal beam through the rear shock-absorbing spring, and the acting force can be transmitted to the cross beam through the rear longitudinal beam due to the connection of the cross beam and the rear longitudinal beam, so that the acting force of the rear shock-absorbing spring can be transmitted and dispersed to other parts of the vehicle body through the cross beam. However, in the research process of the vehicle, the technical personnel find that the beam is connected with the rear seat, and the connection position of the beam and the rear longitudinal beam and the mounting point of the damping spring are staggered on the rear longitudinal beam, so that the effect that the external force applied to the rear damping spring is transferred and dispersed to other parts of the vehicle body through the beam is poor, and the strength and rigidity of the whole vehicle are weak.

Disclosure of utility model

In view of the above, the application provides a rear vehicle body component and a vehicle, which are used for solving the technical problems of weaker strength and rigidity of the whole vehicle caused by poorer effect of transmitting and dispersing external force applied to other parts of the vehicle body by a rear shock absorption spring in the prior art.

The present application provides a rear vehicle body assembly, wherein the rear vehicle body assembly includes: the beam, longeron and spring mount pad, the crossbeam with the spring mount pad all with the longeron is connected to extend along the direction of keeping away from each other, at least one end of crossbeam is followed the extending direction of longeron is to being close to the direction of spring mount pad is crooked.

In the rear vehicle body component provided by the application, the spring mounting seat is used for being connected with the damping spring of the vehicle and being connected with the longitudinal beam, the end part of the transverse beam is connected with the longitudinal beam, and at least one end of the transverse beam is bent along the extending direction of the longitudinal beam towards the direction close to the spring mounting seat so as to reduce the distance between the connecting position of the end part of the transverse beam and the longitudinal beam and the mounting position of the spring mounting seat and the longitudinal beam, thereby reducing the distance of force transmission, improving the transmission efficiency of the external force born by the damping spring to the transverse beam through the longitudinal beam, further improving the effect of the external force born by the damping spring dispersed to other parts of the vehicle body through the longitudinal beam and the transverse beam, and effectively improving the maximum external force value born by the spring mounting seat, and further improving the strength and rigidity of the whole vehicle.

In one possible embodiment, the cross beam comprises a cross beam body and at least one connecting piece, one end of which is connected to the cross beam body and the other end extends towards the spring mount and is connected to the longitudinal beam.

In one possible embodiment, at least one end of the cross beam body is provided with two connecting pieces, which are respectively connected with two opposite sides of the longitudinal beam.

In one possible embodiment, the longitudinal beam comprises a first mounting region for connection to the spring mount and a second mounting region for connection to the transverse beam, at least part of the second mounting region being in orthographic projection in the first mounting region along the extension direction of the longitudinal beam.

In one possible embodiment, the spring mounting structure further comprises a mounting seat reinforcement, wherein the mounting seat reinforcement comprises a first connecting surface used for being connected with the spring mounting seat and a second connecting surface used for being connected with the longitudinal beam, the first connecting surface and the second connecting surface are arranged at a set angle, at least one reinforcing rib is arranged on the mounting seat reinforcement, and the reinforcing rib extends along the direction that the first connecting surface points to the second connecting surface.

In one possible embodiment, a first recess is formed in the middle of the mount stiffener, the first recess being for forming a first chamber with at least one of the stringers and the spring mount, the stiffener being formed on the first recess.

In one possible embodiment, the longitudinal beam has a recess in which a longitudinal beam reinforcement is arranged, and in the direction of extension of the longitudinal beam, the orthographic projection of the connection point of the longitudinal beam reinforcement to the longitudinal beam overlaps with the orthographic projection of the connection point of the spring mount to the longitudinal beam.

In one possible embodiment, the stringer stiffener comprises a stiffener body, the middle of the stiffener body being formed with a second recess for forming a second cavity with the bottom surface of the groove, at least two oppositely arranged edges of the stiffener body being provided with a flange, the flange being connected with the side surface of the groove.

In one possible embodiment, the seat belt nut plate and the rear wheel cover inner plate reinforcing plate are disposed on both sides of the spring mount base along the extending direction of the longitudinal beam, and are connected to both sides of the groove of the longitudinal beam.

The application also provides a vehicle comprising the rear vehicle body component.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a partial structure of a vehicle according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a structure according to an embodiment of the present application;

FIG. 3 is a schematic top view of a stringer-cross beam connection in accordance with an embodiment of the present application;

FIG. 4 is a schematic view of FIG. 3 at A-A;

FIG. 5 is a schematic view at B-B in FIG. 3;

FIG. 6 is a schematic view of a bottom view of a stringer-to-cross beam connection provided in an embodiment of the present application;

FIG. 7 is a partial schematic view of a rear body assembly provided in an embodiment of the present application;

FIG. 8 is a schematic structural view of a mount stiffener according to an embodiment of the present disclosure;

Fig. 9 is a schematic structural view of a stringer stiffener according to an embodiment of the present application.

Reference numerals illustrate:

10-a rear body component;

1-a cross beam;

11-a beam body;

12-connecting piece;

2-a longitudinal beam;

21-grooves;

3-a spring mount;

4-mount reinforcements;

41-a first connection face;

42-a second connection face;

43-reinforcing ribs;

44-a first recess;

5-stringer reinforcements;

51-stiffener body;

52-a second recess;

53-flanging;

6-a seat belt nut plate;

7-a rear wheel cover inner plate reinforcing plate;

8-floor;

20-damping springs.

Detailed Description

For a better understanding of the technical solution of the present application, the following detailed description of the embodiments of the present application refers to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

As shown in fig. 1 to 2, an embodiment of the present application provides a rear vehicle body assembly 10, wherein the rear vehicle body assembly 10 includes: the beam 1, the longitudinal beam 2 and the spring mounting seat 3, wherein the beam 1 and the spring mounting seat 3 are connected with the longitudinal beam 2 and extend along the direction away from each other, and at least one end of the beam 1 is bent along the extending direction of the longitudinal beam 2 towards the direction close to the spring mounting seat 3.

In the rear vehicle body component 10 provided by the embodiment of the application, the spring mounting seat 3 is used for being connected with the damping spring 20 of the vehicle and being connected with the longitudinal beam 2, the end part of the transverse beam 1 is connected with the longitudinal beam 2, and at least one end of the transverse beam 1 is bent along the extending direction of the longitudinal beam 2 towards the direction close to the spring mounting seat 3 so as to reduce the distance between the connecting position of the end part of the transverse beam 1 and the longitudinal beam 2 and the mounting position of the spring mounting seat 3 and the longitudinal beam 2, thereby reducing the force transmission distance, improving the transmission efficiency of the external force born by the damping spring 20 to the transverse beam 1 through the longitudinal beam 2, further improving the effect of the external force born by the damping spring 20 to be transmitted and dispersed to other parts of the vehicle body through the longitudinal beam 2 and the transverse beam 1, and effectively improving the maximum external force value born by the spring mounting seat 3, and further improving the strength and rigidity of the whole vehicle.

Specifically, the rear vehicle body assembly 10 includes two side members 2, a cross member 1 is provided between the two side members 2, and both ends of the cross member 1 are respectively connected to the two side members 2. It should be noted that, since the cross member 1 is also connected to a seat or the like, and the spring mount 3 is connected to the suspension system of the vehicle via the damper springs 20, it is impossible to achieve a reduction in the distance between the cross member 1 and the spring mount 3 by changing the position of the entire cross member 1 or the position of the spring mount 3. Therefore, in the embodiment of the present application, the distance between the end of the cross member 1 and the spring mount 3 is reduced by bending the end of the cross member 1 provided as one end in the direction of extension of the side member 2 toward the spring mount 3, so as to improve the force transmitting effect at that position. The two ends of the cross beam 1 can be bent towards the spring mounting seat 3 along the extending direction of the longitudinal beam 2, so that the distance between the end of the cross beam 1 and the spring mounting seat 3 is reduced, the force transmission effect at the position is improved, the bending degree of the two ends is the same, the cross beam 1 forms a symmetrical structure, the maximum bearable on two sides of a vehicle is the same, the same performance on two sides of the vehicle is ensured, and the stability and the possibility of the vehicle are further ensured.

In some embodiments, the structure of the cross beam 1 may be a unitary structure, which may be formed by a stamping process.

In other embodiments, the cross beam 1 may also be formed by joining at least two parts.

As shown in fig. 3 to 7, in particular, the cross member 1 may include a cross member body 11 and at least one connecting member 12, one end of the connecting member 12 being connected to the cross member body 11, and the other end extending toward the spring mount 3 and being connected to the side member 2.

When one end of the beam 1 is set to be in a bent structure, the beam body 11 can be set to be a straight beam, the connecting piece 12 can be set to be in a bent structure or a straight beam structure, and the connecting piece 12 of the straight beam structure is connected with the beam body 11 at a set angle to enable the end of the beam 1 to form a bent structure. When both ends of the cross beam 1 are disposed in a curved structure, the cross beam 1 may include a cross beam body 11 having a curved structure at one end and one connecting piece 12, or the cross beam 1 may include a cross beam body 11 having a straight beam structure and two connecting pieces 12, the structure of the connecting pieces 12 may be a curved structure or a straight beam structure, and the connecting pieces 12 of the straight beam structure may be connected at a set angle with the cross beam body 11 to form the cross beam 1 having a curved end.

By arranging the cross beam 1 to be an assembly structure comprising at least two parts, the preparation difficulty of a die for preparing the cross beam 1 can be reduced, so that the preparation difficulty and cost of the die are reduced, the manufacturing difficulty of the cross beam 1 is also reduced, and the manufacturing cost of a vehicle is reduced.

In some embodiments, at least one end of the cross member body 11 is provided with two connecting members 12, the two connecting members 12 being connected to opposite sides of the longitudinal member 2, respectively.

That is, the cross member body 11 is provided at one end thereof with two connecting members 12, and the two connecting members 12 are disposed opposite to each other so that the side member 2 can be clamped between the two connecting members 12 when mounted. When the cross member 1 is attached to the vehicle, two connecting pieces 12 are sequentially provided in the height direction of the vehicle, one connecting piece 12 is attached to the lower side of the side member 2, and the other connecting piece 12 is attached to the upper side of the side member 2.

By arranging two connecting pieces 12 at least one end of the beam body 11 relatively, the connection stability and reliability of the beam 1 and the longitudinal beam 2 are ensured.

Specifically, in both ends of the beam body 11, two connecting pieces 12 can be disposed at each end, so that the stability of connection between both ends of the beam 1 and the longitudinal beams 2 at both sides is ensured, and the structural reliability of the vehicle is improved.

In some embodiments, a floor 8 is further provided between the two stringers 2, the floor 8 being located below the cross member 1 in the height direction of the vehicle, the side of the stringers 2 remote from the cross member 1 being higher than the cross member 1, the end of the connection member 12 located above the floor 8 extending in a direction away from the floor 8 to connect with the stringers 2, such that a cavity is formed between the connection member 12, the floor and the stringers 2 to improve the structural strength at that location.

In some embodiments, the longitudinal beam 2 comprises a first mounting area for connection with the spring mount 3 and a second mounting area for connection with the transverse beam 1, at least part of the second mounting area being in orthographic projection in the extension direction of the longitudinal beam 2 in the first mounting area.

That is, the first mounting region and the second mounting region are disposed adjacent to each other to reduce a distance between the first mounting region and the second mounting region, thereby reducing a distance in which force is transmitted from the first mounting region to the second mounting region and improving a force transmission efficiency.

In some embodiments, mount stiffener 4 is also included. As shown in fig. 8, the mount stiffener 4 may include a first connection surface 41 for connecting with the spring mount 3 and a second connection surface 42 for connecting with the side member 2, where the first connection surface 41 and the second connection surface 42 are disposed at a set angle, and at least one stiffener 43 is disposed on the mount stiffener 4, and the stiffener 43 extends along the direction in which the first connection surface 41 points toward the second connection surface 42.

The part of the spring mount 3 is positioned below the longitudinal beam 2 and connected with the longitudinal beam 2, and the part of the spring mount 3 extends out of the longitudinal beam 2 to form a cantilever structure relative to the longitudinal beam 2. In order to improve the reliability of the connection of the spring mounts 3 to the stringers 2, mount reinforcements 4 are provided between the side faces of the stringers 2 and the spring mounts 3. That is, the mount stiffener 4 is located above the spring mount 3. The mount reinforcement 4 has a first connection surface 41 connected to the spring mount 3 and a second connection surface 42 connected to the side surface of the side member 2. The first connecting surface 41 and the second connecting surface 42 form a set angle, that is, the included angle between the first connecting surface 41 and the second connecting surface 42 is the same as the included angle between the side surface of the longitudinal beam 2 and the spring mounting seat 3, and the included angle can be 90 degrees or tends to 90 degrees. The arrangement ensures that the first connecting surface 41 is tightly attached to the spring mounting seat 3, and the second connecting surface 42 is tightly attached to the side surface of the longitudinal beam 2, so that the connection reliability of the mounting seat reinforcing member 4, the longitudinal beam 2 and the spring mounting seat 3 is ensured.

In addition, the structural strength of the installation seat reinforcing piece 4 can be effectively improved by arranging at least one reinforcing rib 43 on the installation seat reinforcing piece 4, so that the spring installation seat 3 is effectively supported, the structural strength of the connection position of the spring installation seat 3 and the longitudinal beam 2 is increased, and the spring installation seat 3 can bear larger external force. The number of the reinforcing ribs 43 connected between the first connection surface 41 and the second connection surface 42 may be one, two or more, and is not limited herein.

In some embodiments, the middle of the mount stiffener 4 is formed with a first recess 44, the first recess 44 being for forming a first chamber with at least one of the stringers 2 and the spring mount 3, the stiffener 43 being formed on the first recess 44.

The mount stiffener 4 may further have a first recess 44, and after the mount stiffener 4 is connected to the side member 2 and the spring mount 3, a recess area of the first recess 44 is disposed toward at least one of the side member 2 and the spring mount 3 to form a first chamber. The structural strength of the mount stiffener 4 can be further improved by providing the first chamber.

The first recess 44 may be formed by a stamping process, and the reinforcing rib 43 may be formed on the stamped portion during the stamping process, so as to form the mounting seat reinforcing member 4 with an integral structure, and the manufacturing efficiency of the mounting seat reinforcing member 4 with an integral structure is high, so that efficient production can be realized.

In some embodiments, the longitudinal beam 2 has a groove 21, in which groove 21 a longitudinal beam reinforcement 5 is arranged, in the direction of extension of the longitudinal beam 2, the orthographic projection of the connection location of the longitudinal beam reinforcement 5 with the longitudinal beam 2 overlapping the orthographic projection of the connection location of the spring mount 3 with the longitudinal beam 2.

The structural strength of the longitudinal beam 2 can be improved by arranging the longitudinal beam reinforcing piece 5 on the longitudinal beam 2, and the longitudinal beam reinforcing piece 5 is arranged in the groove 21 of the longitudinal beam 2, so that the space occupied by the reinforcing plate of the longitudinal beam 2 is saved. And, set up the mounting position that is close to spring mount pad 3 and longeron 2 with longeron reinforcement 5, improved the structural strength of spring mount pad 3 and longeron 2 junction.

As shown in fig. 9, in particular, the stringer stiffener 5 may include a stiffener body 51, where a second recess 52 is formed in a middle portion of the stiffener body 51, the second recess 52 is used to form a second cavity with a bottom surface of the groove 21, at least two oppositely disposed edges of the stiffener body 51 are provided with flanges 53, and the flanges 53 are connected with side surfaces of the groove 21.

In the longitudinal beam stiffener 5, the second recess 52 is formed in the middle of the stiffener body 51, so that the structural strength of the stiffener body 51 is effectively improved. And the second concave part 52 and the bottom surface of the groove 21 form a second cavity, so that the structural strength of the longitudinal beam 2 can be effectively improved. Also, the edge of the reinforcement body 51 is provided with a flange 53 for connection with the side face of the side member 2, that is, the side member reinforcement 5 is supported between both sides of the groove 21, to play a role in improving structural strength.

Specifically, the annular flange 53 is formed around the stiffener body 51 to improve the structural strength of the stringer stiffener 5, thereby improving the structural strength of the stringer 2.

In some embodiments, the seat belt nut plate 6 and the rear wheel cover inner plate reinforcement plate 7 are further included, and the seat belt nut plate 6 and the rear wheel cover inner plate reinforcement plate 7 are disposed on both sides of the spring mount 3 in the extending direction of the side member 2 and are connected with both sides of the groove 21 of the side member 2.

In this embodiment, both the seat belt nut plate 6 and the rear wheel cover inner panel reinforcement plate 7 are connected to both side surfaces of the groove 21, that is, support functions are provided to both side surfaces of the groove 21, thereby effectively improving the structural strength of the side member 2.

The embodiment of the present application also provides a vehicle including the rear body assembly 10 described above.

The embodiment of the application provides a vehicle comprising the rear vehicle body assembly 10, wherein in the rear vehicle body assembly 10, a spring mounting seat 3 is used for being connected with a damping spring 20 of the vehicle and being connected with a longitudinal beam 2, the end part of a transverse beam 1 is connected with the longitudinal beam 2, and at least one end of the transverse beam 1 is bent along the extending direction of the longitudinal beam 2 towards the direction close to the spring mounting seat 3 so as to reduce the distance between the connecting position of the end part of the transverse beam 1 and the longitudinal beam 2 and the mounting position of the spring mounting seat 3 and the longitudinal beam 2, thereby reducing the force transmission distance, improving the transmission efficiency of the external force born by the damping spring 20 to the transverse beam 1 through the longitudinal beam 2, further improving the effect of the transmission and dispersion of the external force born by the damping spring 20 to other parts of the vehicle body through the longitudinal beam 2 and the transverse beam 1, effectively improving the maximum external force value born by the spring mounting seat 3, and further improving the strength and rigidity of the vehicle.

While the foregoing is directed to embodiments of the present application, other and further embodiments of the application may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A rear body assembly, comprising: the novel bending device comprises a cross beam (1), a longitudinal beam (2) and a spring mounting seat (3), wherein the cross beam (1) and the spring mounting seat (3) are connected with the longitudinal beam (2) and extend along the direction away from each other, and at least one end of the cross beam (1) is bent along the extending direction of the longitudinal beam (2) towards the direction close to the spring mounting seat (3).

2. Rear body assembly according to claim 1, characterized in that the cross member (1) comprises a cross member body (11) and at least one connecting piece (12), one end of the connecting piece (12) being connected to the cross member body (11) and the other end extending towards the spring mount (3) and being connected to the longitudinal beam (2).

3. Rear body assembly according to claim 2, characterized in that at least one end of the cross-member body (11) is provided with two said connecting pieces (12), the two said connecting pieces (12) being connected to opposite sides of the longitudinal beam (2), respectively.

4. A rear vehicle body assembly according to any one of claims 1-3, characterized in that the longitudinal beam (2) comprises a first mounting area for connection with the spring mount (3) and a second mounting area for connection with the transverse beam (1), at least part of the second mounting area being in orthographic projection in the direction of extension of the longitudinal beam (2) within the first mounting area.

5. The rear body assembly according to claim 1, further comprising a mount reinforcement (4), the mount reinforcement (4) comprising a first connection surface (41) for connection with the spring mount (3) and a second connection surface (42) for connection with the longitudinal beam (2), the first connection surface (41) and the second connection surface (42) being arranged at a set angle, at least one reinforcement rib (43) being provided on the mount reinforcement (4), the reinforcement rib (43) extending in a direction in which the first connection surface (41) points towards the second connection surface (42).

6. The rear vehicle body assembly according to claim 5, characterized in that a first recess (44) is formed in the middle of the mount reinforcement (4), the first recess (44) being for forming a first chamber with at least one of the side member (2) and the spring mount (3), the reinforcement rib (43) being formed on the first recess (44).

7. Rear body component according to claim 1, characterized in that the longitudinal beam (2) has a recess (21), in which recess (21) a longitudinal beam reinforcement (5) is arranged, in the direction of extension of the longitudinal beam (2), the orthographic projection of the connection location of the longitudinal beam reinforcement (5) with the longitudinal beam (2) overlapping the orthographic projection of the connection location of the spring mount (3) with the longitudinal beam (2).

8. The rear vehicle body assembly according to claim 7, characterized in that the side member reinforcement (5) comprises a reinforcement body (51), a second recess (52) is formed in the middle of the reinforcement body (51), the second recess (52) is used for forming a second cavity with the bottom surface of the groove (21), at least two oppositely arranged edges of the reinforcement body (51) are provided with flanges (53), and the flanges (53) are connected with the sides of the groove (21).

9. The rear vehicle body assembly according to claim 1, further comprising a seat belt nut plate (6) and a rear wheel cover inner panel reinforcement plate (7), the seat belt nut plate (6) and the rear wheel cover inner panel reinforcement plate (7) being provided on both sides of the spring mount (3) in the extending direction of the side member (2) and being connected with both sides of the groove (21) of the side member (2).

10. A vehicle characterized by comprising a rear body assembly (10) as claimed in any one of claims 1 to 9.