CN211417419U

CN211417419U - Trunk assembly

Info

Publication number: CN211417419U
Application number: CN201922310478.5U
Authority: CN
Inventors: 付长虎; 徐爽
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-09-04
Anticipated expiration: 2029-12-20

Abstract

The utility model provides a trunk assembly, including the back floor body that holds the U-shaped low concave region of spare tyre, enclose the planking body after for preceding low, the high folded plate form in back, enclose the preceding curb plate face welded connection of the riser of the front end of planking body after the rear end of back floor body, enclose the inner panel body after the inboard face department of riser of the rear end of planking body is provided with, enclose the inner panel body after the upper portion of the deep floor that top-down arranged with after with, the lower part links to each other with after with and encloses the planking body. In the scheme, the reinforcing rib plate is added between the rear wall outer plate body and the rear wall inner plate body on the basis of the structure of the existing trunk assembly, so that the elastic deformation of the rear wall outer plate body and the rear wall inner plate body in the vertical direction and the front-rear direction caused by vibration can be effectively resisted, the amplitude is reduced, the structural strength of the trunk assembly is improved, and the NVH performance is improved.

Description

Trunk assembly

Technical Field

The utility model relates to an inside sheet metal component structure field of car specifically is exactly a trunk assembly.

Background

The vibration of a large sheet metal part in an automobile is an important factor influencing the NVH performance of the whole automobile, the floor of an automobile trunk is one of main large sheet metals on the automobile body, the vibration of an automobile engine is easily transmitted to the floor of the automobile trunk through a frame, and meanwhile, the vibration of the trunk floor can be caused by the jolt of the automobile.

The automobile trunk floor is generally provided with a U-shaped spare tire groove for placing a spare tire and an automobile maintenance tool, so that the requirement on the structural strength is high. As shown in fig. 5, the rear end of the trunk floor is welded to the lower portion of the inner side of the automobile rear wall outer panel, and the upper portion of the inner side of the automobile rear wall outer panel is welded to the rear wall inner panel body. Meanwhile, in order to reduce the weight of the vehicle body, the trunk assembly is formed by stamping a 0.7mm steel plate, and each part of the trunk assembly is provided with a plurality of reinforcing ribs. The rear floor assembly is large in area and thin in thickness, so that large amplitude is easily generated, NVH performance of an automobile is affected, and meanwhile, the large amplitude can damage welding points of the rear floor assembly.

How to compromise the lightweight of vehicle and the structural strength of trunk assembly is the important goal of vehicle design, and the influence that vehicle vibration will also reduce to it when the structural strength of trunk assembly improves to improve the NVH performance of vehicle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a higher trunk assembly of structural strength.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a trunk assembly, includes the rear floor body that holds the U-shaped depressed area of spare tyre, encloses the planking body after for low, the high folded plate form in back, enclose the preceding curb plate face welded connection of the front end of planking body after the rear end of rear floor body and, enclose the inner panel body after the inboard face department of the riser of the rear end of planking body is provided with, enclose the inner panel body after the upper portion of deep floor that top-down arranged with after with, the lower part encloses the planking body after with and links to each other.

In the scheme, the reinforcing rib plate is added between the rear wall outer plate body and the rear wall inner plate body on the basis of the structure of the existing trunk assembly, so that the elastic deformation of the rear wall outer plate body and the rear wall inner plate body in the vertical direction and the front-rear direction caused by vibration can be effectively resisted, the amplitude is reduced, the structural strength of the trunk assembly is improved, and the NVH performance is improved.

Drawings

FIG. 1 is a schematic structural view of a rear floor body;

FIG. 2 is a schematic structural view of a rear wall outer plate body;

FIG. 3 is a schematic view of the combination structure of the rear floor body and the rear wall outer plate body;

FIG. 4 is a schematic structural view of a rear wall inner plate body;

FIG. 5 is a schematic view of the combination structure of the rear floor body, the rear wall outer plate body and the rear wall inner plate body;

fig. 6 and 7 are schematic structural views of the present invention;

fig. 8 is a schematic view of a stiffener structure.

Detailed Description

The utility model provides a trunk assembly, includes the back floor body 10 that holds the U-shaped depressed area 11 of spare tyre, enclose planking body 20 after for preceding low, the high folded plate form after, enclose planking body 20 after the rear end of body 10 and enclose the preceding curb plate face welded connection of the riser 21 of planking body 20's front end after with, enclose planking body 30 after being provided with in the inboard face department of riser 22 of planking body 20's rear end after, the upper portion of the deep floor 40 that top-down arranged encloses planking body 30 after with links to each other, the lower part encloses planking body 20 after with and links to each other.

Rib reinforcement 40 in the above-mentioned scheme has the ability of resisting upper and lower direction deformation to further enclose inner panel body 30 after to fix, it easily transmits to the trunk assembly and arouses resonance through the frame when engine vibration, enclose the outside board body 20 after this moment and enclose the direction of inner panel body 30 vibration deformation mainly including upper and lower direction after, add rib reinforcement 40 and can effectively improve after enclose the anti deformability of outside board body 20 and enclose inner panel body 30 after and, thereby reduce the amplitude and promote this structural strength and improved NVH performance simultaneously.

The rear floor board comprises a rear floor board body 10, wherein a flanging is arranged at the rear end of the rear floor board body 10 and is welded with a front side board face of a vertical board 21 at the front end, a notch of a groove-shaped rear wall inner board body 30 faces backwards, an external flanging is arranged at the notch, the inner side board face of the vertical board 22 at the rear end of the rear wall outer board body 20 is welded with the flanging at the notch of the rear wall inner board body 30, the upper portion of a reinforcing rib plate 40 is connected with the middle portion of the groove bottom 31 of the rear wall inner board body 30 in the vehicle width direction, and the lower portion of the reinforcing rib plate is connected with a step face 23, located.

The groove-shaped rear wall inner plate body 30 and the vertical plate 22 at the rear end of the rear wall outer plate body 20 in the scheme form a reinforcing beam type structure, the structural strength of the rear wall is effectively improved, the whole groove bottom 31 of the groove-shaped rear wall inner plate body 30 is suspended through the groove wall, large amplitude is easily generated at the position when vibration occurs, the groove bottom 31 of the rear wall inner plate body 30 and the rear wall outer plate body 20 are connected through the reinforcing rib plate 40, the structure of the rear wall inner plate body 30 is further fixed and reinforced to be not easy to deform, the reinforcing rib plate 40 is in an inclined shape with a lower front part and a higher rear part, so that the reinforcing rib plate 40 has the capacity of resisting deformation in the vertical direction and the front-rear direction, when the vibration of an engine is transmitted to a trunk assembly through a frame or a vehicle bumps, the middle parts of the rear wall outer plate body and the rear wall inner plate body are an area with the largest amplitude, and, the reinforcing rib plate 40 is added at the position, so that the deformation resistance of the position can be effectively improved, the amplitude of the position is reduced, the structural strength of the position is improved, and the NVH performance is improved.

The lower part of the reinforcing rib plate 40 extends downwards along the surface of the rear wall outer plate body 20 to form a welding section 41. The welding section 41 facilitates welding of the reinforcing rib plate 40 and the rear wall outer plate body 20, and further improves the structural strength of the middle of the rear wall outer plate body 20.

The lower portion of the welding section 41 is extended and connected to the upper bottom surface of the U-shaped depressed area 11 and is L-shaped. When the vibration of the engine is transmitted to the trunk assembly or the vehicle bumps through the frame, the middle of the U-shaped depressed area 11 formed by stamping a large-area thin steel plate is an area with the largest amplitude, and the rear end of the middle of the U-shaped depressed area 11 is welded with the rear wall outer plate body 20, once the amplitude is too large, the desoldering phenomenon is easy to occur, so that the welding section 41 is extended to the rear end of the middle of the U-shaped depressed area 11 to improve the deformation resistance and reduce the amplitude.

10. The center of the arc section of the U-shaped depressed area 11 protrudes upwards to form a convex portion 13, a stamping rib 12 is arranged between the convex portion 13 and the middle of the rear wall outer plate body 20 in the vehicle width direction, and the upper surface of the stamping rib 12 is welded to the lower portion of the welding section 41. Above-mentioned scheme is welding section 41 and punching press muscle 12 links to each other promptly, this department welding section 41 has the ability of resisting upper and lower direction deformation, the amplitude of upper and lower direction is easily produced with welding section 41 junction in U-shaped valley region 11, because the plate body of U-shaped valley region 11 is thinner, vibrational force easily makes a trunk assembly with welding section 41 resistance to deformation, including back floor body (10) that holds U-shaped valley region (11) of spare tyre, back wall planking body (20) are preceding low, the high folded sheet form in back, enclose the preceding curb plate face welded connection of riser (21) of the front end of planking body (20) after the rear end of planking body (10) and, enclose planking body (30) after being provided with in riser (22) inboard face department of the rear end of planking body (20), its characterized in that: the upper part of the reinforcing rib plate (40) arranged from top to bottom is connected with the rear wall inner plate body (30), and the lower part is connected with the rear wall outer plate body (20).

The connection point with the welded segment 41 is torn in shear, thereby connecting the welded segment 41 to the stamped rib 12 having a higher structural strength.

The reinforcing rib plate 40 has a stamped rib at the middle in the vehicle width direction. Thus, the structural strength of the reinforcing rib plate 40 is further improved while ensuring light weight.

The thickness of the reinforcing rib plate 40 is larger than that of the rear floor body 10, and the thickness of the reinforcing rib plate 40 is 1-3 mm. The trunk assembly is relatively large in stress when vibrating, the thickness of the trunk assembly is larger than that of the rear floor body 10, enough structural strength can be guaranteed, and the reinforcing rib plates 40 are small in size, so that the weight increase caused by the reinforcing rib plates 40 made of relatively thick materials has little influence on the light weight requirement of the whole vehicle.

The reinforcing rib plate 40 is in a shape of a trapezoid groove with a small bottom opening, the notch of the reinforcing rib plate faces the rear lower part, and an external flange is arranged at the notch of the reinforcing rib plate. The trapezoidal groove-shaped reinforcing rib plate 40 is high in structural strength and convenient to punch and form, and the flanging of the reinforcing rib plate is beneficial to lifting the contact area with the trunk assembly and convenient to weld and install. The reinforcing rib plate 40 is formed by an upper L-shaped structure and a lower L-shaped structure. Thus, the connection part of the reinforcing rib plate 40 and the back wall outer plate body 20 can be ensured to be attached as much as possible.

Claims

1. The utility model provides a trunk assembly, includes rear floor body (10) that holds the U-shaped depressed area (11) of spare tyre, encloses planking body (20) after for preceding low, the high folded plate form in back, enclose the preceding curb plate face welded connection of riser (21) of the front end of planking body (20) after the rear end of rear floor body (10) and, enclose inner panel body (30) after riser (22) inboard face department of the rear end of planking body (20) is provided with, its characterized in that: the upper part of the reinforcing rib plate (40) arranged from top to bottom is connected with the rear wall inner plate body (30), and the lower part is connected with the rear wall outer plate body (20).

2. A trunk assembly as defined in claim 1, wherein: the rear floor is characterized in that a flanging is arranged at the rear end of the rear floor body (10) and is welded with a front side plate face of a vertical plate (21) at the front end, a notch of a groove-shaped rear wall inner plate body (30) faces backwards, an external flanging is arranged at the notch, the inner side plate face of the vertical plate (22) at the rear end of the rear wall outer plate body (20) is welded with the flanging at the notch of the rear wall inner plate body (30), the upper portion of a reinforcing rib plate (40) is connected with the groove bottom (31) of the rear wall inner plate body (30) at the middle part of the vehicle width direction, and the lower portion of the reinforcing rib plate is connected with a step face (23) of the rear wall outer plate body (20) located in.

3. A trunk assembly as defined in claim 2, wherein: the lower part of the reinforcing rib plate (40) extends downwards along the plate surface of the rear wall outer plate body (20) to form a welding section (41).

4. A trunk assembly as defined in claim 3, wherein: the lower part of the welding section (41) extends and is connected to the upper bottom surface of the U-shaped low concave area (11) and is L-shaped.

5. A trunk assembly as defined in claim 4, wherein: the center of the arc section of the U-shaped low concave area (11) protrudes upwards to form a convex part (13), a stamping rib (12) is arranged between the convex part (13) and the middle part of the rear wall outer plate body (20) in the vehicle width direction, and the upper surface of the stamping rib (12) is connected with the lower part of the welding section (41) in a welding mode.

6. A trunk assembly as defined in claim 1, 2, 3, 4 or 5, wherein: the middle part of the reinforcing rib plate (40) in the vehicle width direction is provided with a stamped convex rib (42).

7. A trunk assembly as defined in claim 6, wherein: the thickness of the reinforcing rib plate (40) is larger than that of the rear floor body (10), and the thickness of the reinforcing rib plate (40) is 1-3 mm.

8. A trunk assembly as defined in claim 6, wherein: the reinforcing rib plate (40) is in a trapezoid groove shape with a small bottom, the notch of the reinforcing rib plate faces the rear lower part, and an external flanging is arranged at the notch of the reinforcing rib plate.

9. A trunk assembly as defined in claim 8, wherein: the reinforcing rib plate (40) is composed of an upper L-shaped structure and a lower L-shaped structure.