CN113247104A

CN113247104A - Top cap front beam assembly and vehicle

Info

Publication number: CN113247104A
Application number: CN202110539441.9A
Authority: CN
Inventors: 王浩; 申涛; 杨英杰; 郑俊杰; 段然; 张松
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-08-13

Abstract

The invention discloses a top cover front beam assembly and a vehicle, which comprise a front beam body, wherein the front beam body is provided with a groove extending along the length direction of the front beam body, and an opening of the groove extends outwards to form a first flanging; set up a plurality of reinforcements along front beam body length direction interval, the reinforcement border is equipped with and corresponds lapped second turn-ups with first turn-ups, and reinforcement middle part undercut forms the boss with recess tank bottom fixed connection. The structure is simple, the rigidity and the structural mode of the top cover front beam assembly can be improved, and the NVH performance is improved.

Description

Top cap front beam assembly and vehicle

Technical Field

The invention relates to an automobile body, in particular to a top cover front cross beam assembly and an automobile.

Background

Along with the continuous consumption and upgrading of automobile products, the driving comfort of the automobile is more and more emphasized by people, the driving comfort of customers is influenced by the NVH performance, and the accelerating rumbling noise is an important factor influencing the NVH performance of the automobile. The main reason for accelerating the generation of the rumbling noise is that the vibration generated by the work of an engine and an air intake and exhaust system is transmitted to a vehicle body, so that the vibration of sheet metal parts of the vehicle body is caused, and the noise is generated. If the design structure rigidity and the mode of the top cover front beam assembly are lower, the problem that the noise is generated due to the vibration of the plate is easily caused when the automobile runs.

Referring to fig. 1 and 2, the conventional automobile roof front beam assembly is composed of an existing front beam body and a front beam reinforcing plate, the existing front beam body and the front beam reinforcing plate are surrounded to form a hollow cavity structure, the cavity structure is low in rigidity and mode, and the problem of noise generated when an automobile runs is solved more easily. And the front beam reinforcing plate is mostly whole stamping workpiece, and weight is big, is unfavorable for the automobile body lightweight.

Disclosure of Invention

The invention aims to provide a roof front beam assembly and a vehicle, which are simple in structure, can improve the rigidity and structural mode of the roof front beam assembly, and improve the NVH performance.

The top cover front beam assembly comprises a front beam body, wherein the front beam body is provided with a groove extending along the length direction of the front beam body, an opening of the groove extends outwards to form a first flanging, a plurality of reinforcing parts are arranged at intervals along the length direction of the front beam body, second flanging which is correspondingly lapped with the first flanging is arranged at the edge of each reinforcing part, and a boss which is fixedly connected with the bottom of the groove is formed by downwards recessing the middle part of each reinforcing part.

Further, a glue coating groove is formed in the upper surface of the reinforcing piece.

Furthermore, the number of the reinforcing pieces is three, and the three reinforcing pieces are respectively connected with the two end parts and the middle part of the front cross beam body.

Furthermore, the reinforcing piece is provided with a coating electrophoresis hole and a liquid leakage hole.

Furthermore, the cross section of the reinforcing piece is in a U shape with an upward opening, and the second flanging is arranged at the opening of the reinforcing piece.

Furthermore, the middle part of the front beam body is fixedly connected with the front dome lamp support.

A vehicle comprises the roof front cross beam assembly.

Compared with the prior art, the invention has the following beneficial effects.

1. The middle part of the reinforcing part is downwards sunken to form a boss fixedly connected with the bottom of the groove, so that the connection is stable and reliable, and compared with a cavity structure of a traditional top cover front beam assembly, the boss is fixedly connected with the bottom of the groove, so that the rigidity and the structural mode of the top cover front beam assembly are effectively improved, the problem that the plate vibrates to generate noise when an automobile runs is avoided, and the NVH performance is improved.

2. According to the invention, the plurality of reinforcing parts are arranged along the length direction of the front cross beam body, so that the structural strength of the top cover front cross beam assembly is improved, the material consumption is reduced, the weight is correspondingly small, and the requirement of vehicle body light weight is met.

Drawings

FIG. 1 is a schematic structural view of a prior art header front rail assembly;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a sectional view B-B of fig. 3.

In the figure, 1-front beam body, 11-first turn-ups, 2-reinforcement, 21-boss, 22-rubber coating groove, 23-second turn-ups, 24-application electrophoresis hole, 25-weeping hole, 3-front dome lamp support, 4-current front beam body, 5-front beam reinforcing plate.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 3 and 4, the roof front beam assembly includes a front beam body 1, the front beam body 1 has a groove extending along a length direction of the front beam body 1, and an opening of the groove extends outward to form a first flange 11. Three reinforcements 2 are arranged at intervals along the length direction of the front cross beam body 1, and the three reinforcements 2 are respectively connected with the two end parts and the middle part of the front cross beam body 1. The front edge and the rear edge of the reinforcing piece are respectively provided with a second flanging 23 which is correspondingly lapped with the first flanging 11 at the opening of the groove on the front beam body 1, and the middle part of the reinforcing piece 2 is sunken downwards to form a boss 21 fixedly connected with the bottom of the groove. Three reinforcement 2 that the interval set up had both promoted the structural strength of top cap front beam assembly, compare in the front beam reinforcing plate of traditional whole punching press, and the reinforcement 2 of split type structure has reduced the material quantity, and corresponding weight is littleer, has satisfied automobile body lightweight demand.

The cross section of the reinforcing part 2 is in a U shape with an upward opening, the second flanging 23 is arranged at the opening of the reinforcing part 2, and the structural strength of the reinforcing part 2 is improved due to the U-shaped structure.

2 upper surfaces of reinforcement are equipped with rubber coating 22, extrude the inflation glue and be connected with the top cap in rubber coating 22 during the assembly, and the setting of inflation glue can slow down the vibration transmission between top cap front beam assembly and the top cap to NVH performance has been promoted.

And the reinforcing part 2 is provided with a coating electrophoresis hole 24 and a liquid leakage hole 25, so that the coating electrophoresis and liquid leakage capacity of the reinforcing part 2 is enhanced.

The middle part of the front beam body 1 is fixedly connected with the front dome lamp support 3, and an assembly fixing point is provided for the front dome lamp through the front dome lamp support 3.

During specific assembly, the second flanging 23 of the front edge and the second flanging 23 of the rear edge of the reinforcing part 2 are respectively fixedly connected with the two first flanging 11 of the groove opening of the front cross beam body 1 through spot welding, the boss 21 of the middle part of the reinforcing part 2 is fixedly connected with the groove bottom of the front cross beam body 1 through spot welding, the structure is stable, the rigidity and the structure mode of the top cover front cross beam assembly are effectively improved, the problem that the plate vibrates to generate noise when the automobile runs is avoided, and the NVH performance is improved.

A vehicle comprises the roof front cross beam assembly.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a top cap front beam assembly, includes front beam body (1), front beam body (1) has the recess that extends along front beam body length direction, the opening part of recess outwards extends and forms first turn-ups (11), its characterized in that: still include a plurality of reinforcement (2) that set up along front beam body (1) length direction interval, reinforcement (2) border is equipped with and corresponds lapped second turn-ups (23) with first turn-ups (11), reinforcement (2) middle part undercut form with recess tank bottom fixed connection's boss (21).

2. The roof front rail assembly of claim 1, wherein: and a glue coating groove (22) is formed in the upper surface of the reinforcing piece (2).

3. The roof front rail assembly of claim 1 or 2, wherein: the number of the reinforcing pieces (2) is three, and the three reinforcing pieces (2) are respectively connected with the two end parts and the middle part of the front cross beam body (1).

4. The roof front rail assembly of claim 1 or 2, wherein: and the reinforcing piece (2) is provided with a coating electrophoresis hole (24) and a liquid leakage hole (25).

5. The roof front rail assembly of claim 1 or 2, wherein: the cross section of the reinforcing piece (2) is in a U shape with an upward opening, and the second flanging (23) is arranged at the opening of the reinforcing piece.

6. The roof front rail assembly of claim 1 or 2, wherein: the middle part of the front beam body (1) is fixedly connected with the front dome lamp support (3).

7. A vehicle, characterized in that: the roof front cross beam assembly of any one of claims 1 to 6.