CN216034692U - Structure for improving NVH performance of front-end assembly of automobile cabin - Google Patents
Structure for improving NVH performance of front-end assembly of automobile cabin Download PDFInfo
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- CN216034692U CN216034692U CN202121897931.8U CN202121897931U CN216034692U CN 216034692 U CN216034692 U CN 216034692U CN 202121897931 U CN202121897931 U CN 202121897931U CN 216034692 U CN216034692 U CN 216034692U
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- 238000003466 welding Methods 0.000 claims abstract description 5
- 230000003014 reinforcing Effects 0.000 claims description 58
- 230000035939 shock Effects 0.000 claims description 16
- 239000006096 absorbing agent Substances 0.000 claims description 14
- 238000005728 strengthening Methods 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 claims description 4
- 239000000725 suspension Substances 0.000 abstract description 11
- 238000005452 bending Methods 0.000 abstract description 9
- 238000002955 isolation Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009114 investigational therapy Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Abstract
The utility model provides a structure for improving NVH performance of an automobile engine room front end assembly, which is applied to the technical field of NVH performance of automobiles, wherein a front wheel cover inner upper supporting plate (11) and a front wheel cover inner lower supporting plate (12) of the structure for improving the NVH performance of the automobile engine room front end assembly are connected through welding spots to form a small assembly, and a first structural cavity (14) is formed among the small assembly, a launder body (10), a front wheel cover body (8) and a front longitudinal beam body (1); the structure for improving the NVH performance of the front end assembly of the automobile engine room can effectively improve the yaw mode and the bending mode of the front end of the engine room and improve the forced resonance risk resistance capability; the dynamic stiffness of the front tower seat point and the left and right suspension points is improved, and the NVH performance of the whole vehicle is improved.
Description
Technical Field
The utility model belongs to the technical field of automobile NVH performance, and particularly relates to a structure for improving the NVH performance of an automobile cabin front-end assembly.
Background
In recent years, the requirement of customers on the performance of the automobile NVH is higher and higher, so that the investigation standard of the automobile NVH is improved in the early stage of the whole automobile development. The suspension point and the front shock absorption tower seat point of the automobile power assembly are important path investigation points of the entire automobile NVH, and are arranged on the front engine room assembly, so the NVH performance of the front engine room assembly is very important. The NVH performance of the front cabin assembly, such as low damping tower seat point dynamic stiffness, suspension point dynamic stiffness, front end yaw mode and the like, can bring a series of complete vehicle NVH problems, and finally cause larger vibration and noise in the vehicle.
The NVH performance improvement of a front engine room assembly in the prior art is mainly centralized and locally strengthened in structure, for example, the front wheel cover body and the front shock absorber seat are thickened to improve the inching stiffness of the shock absorption tower seat; a reinforcing piece is added to improve the dynamic stiffness of the suspension point; the front longitudinal beam body is thickened to improve the front end yaw mode. In summary, the optimization concept focuses on local reinforcement, and neglects to promote from the overall frame structure.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: aiming at the defects of the prior art, the structure is simple, the yaw mode and the bending mode of the front end of the cabin can be effectively improved, and the forced resonance risk resistance capability is improved; the dynamic stiffness of the front tower seat point and the left and right suspension points is improved, the vibration isolation capability is improved, and finally the NVH performance of the whole automobile is improved.
To solve the technical problems, the utility model adopts the technical scheme that:
the utility model relates to a structure for improving NVH performance of an automobile engine room front end assembly, wherein an upper support plate in a front wheel cover and a lower support plate in the front wheel cover of the structure for improving the NVH performance of the automobile engine room front end assembly are connected through welding spots to form a small assembly, and a first structural cavity is formed among the small assembly, a launder body, a front wheel cover body and a front longitudinal beam body; the front wheel casing front end on reinforcing plate pass through the solder joint overlap joint between front longitudinal body and front wheel casing front end board, and front wheel casing front end board sets up the strengthening rib in border local position, forms second structure cavity.
The structure for improving the NVH performance of the front end assembly of the automobile cabin comprises a front longitudinal beam body, a front end plastic block, a front wheel cover front end upper reinforcing plate, a front wheel cover front end plate and a headlamp mounting cross beam.
The structure for improving the NVH performance of the front-end assembly of the automobile engine room further comprises a front wheel cover side stiffening beam, a front wheel cover upper stiffening beam outer plate, a front wheel cover body, a front shock absorber seat and a launder body.
The front wheel casing front end upper reinforcing plate is lapped among the front longitudinal beam body, the front wheel casing front end plate and the front wheel casing side reinforcing beam.
The front longitudinal beam body of the structure for improving the NVH performance of the front end assembly of the automobile cabin comprises a left front longitudinal beam body and a right front longitudinal beam body, and the reinforcing plate on the front end of the front wheel cover comprises a reinforcing plate on the front end of the left front wheel cover and a reinforcing plate on the front end of the right front wheel cover.
The front wheel cover front end plate of the structure for improving the NVH performance of the front end assembly of the automobile cabin comprises a left front wheel cover front end plate and a right front wheel cover front end plate, and the headlamp mounting beam comprises a left headlamp mounting beam and a right headlamp mounting beam.
The front wheel cover side reinforcing beam comprises a left front wheel cover side reinforcing beam and a right front wheel cover side reinforcing beam, and the front wheel cover upper reinforcing beam outer plate comprises a left front wheel cover upper reinforcing beam outer plate and a right front wheel cover upper reinforcing beam outer plate.
The front wheel cover body comprises a left front wheel cover body and a right front wheel cover body, and the front shock absorber seat comprises a left front shock absorber seat and a right front shock absorber seat.
The first structural cavity and the second structural cavity are of a structure which can enable the front longitudinal beam body, the launder body, the front wheel cover body and the front wheel cover side reinforcing beam to form a continuous frame.
By adopting the technical scheme of the utility model, the following beneficial effects can be obtained:
according to the structure for improving the NVH performance of the front-end assembly of the automobile cabin, when the structure is designed, the technical idea is different from the idea based on local structure improvement in the prior art, and the idea is put forward from another angle. Namely: according to the reinforcing scheme considered from the whole structure, a first structural cavity and a second structural cavity are formed, so that the front longitudinal beam body, the launder body, the front wheel cover body and the front wheel cover side reinforcing beam form a continuous frame structure. The front-end yaw mode of the engine room is improved by 20%, the bending mode is improved by 10%, the dynamic stiffness of the left front tower base and the right front tower base is improved by 20%, the NVH performance of a front engine room assembly is effectively improved, and the front engine room assembly has important significance for improving the NVH performance of the whole automobile. The structure for improving the NVH performance of the front-end assembly of the automobile engine room is simple in structure and low in cost, and can effectively improve the yaw mode and the bending mode of the front end of the engine room and improve the forced resonance risk resistance capability; the dynamic stiffness of the front tower seat point and the left and right suspension points is improved, the vibration isolation capability is improved, and finally the NVH performance of the whole vehicle is improved.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic structural diagram of a structure for improving NVH performance of an automobile cabin front end assembly according to the present invention;
in the drawings are labeled: 1-a front longitudinal beam body, 2-a front end plastic block, 3-a front wheel cover front end upper reinforcing plate, 4-a front wheel cover front end plate, 5-a headlamp mounting beam, 6-a front wheel cover side reinforcing beam, 7-a front wheel cover upper reinforcing beam outer plate, 8-a front wheel cover body, 9-a front shock absorber seat, 10-a flume body, 11-a front wheel cover inner upper supporting plate, 12-a front wheel cover inner lower supporting plate and 13-a left suspension bracket assembly; 14-a first structural cavity; 15-second structural cavity.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:
as shown in the attached drawing 1, the utility model relates to a structure for improving the NVH performance of an automobile engine room front end assembly, wherein a front wheel cover inner upper supporting plate 11 and a front wheel cover inner lower supporting plate 12 of the structure for improving the NVH performance of the automobile engine room front end assembly are connected through welding points to form a small assembly, and a first structural cavity 14 is formed among the small assembly, a launder body 10, a front wheel cover body 8 and a front longitudinal beam body 1; the front wheel casing front end on reinforcing plate 3 pass through the solder joint overlap joint between front longitudinal body 1 and front wheel casing front end plate 4, and front wheel casing front end plate 4 sets up the strengthening rib in border local position, form second structure cavity 15. Above-mentioned structure, to the problem that exists among the prior art, based on brand-new design thinking, propose technological improvement. When the structure is designed, the technical idea is different from the idea based on local structure improvement in the prior art, and the idea is put forward from another point of view. Namely: the front longitudinal beam body 1, the launder body 10, the front wheel house body 8 and the front wheel house side reinforcing beam 6 are formed into a continuous frame structure by forming the first structural cavity 14 and the second structural cavity 15 in consideration of the overall structure. The front-end yaw mode of the engine room is improved by 20%, the bending mode is improved by 10%, the dynamic stiffness of the left front tower base and the right front tower base is improved by 20%, the NVH performance of a front engine room assembly is effectively improved, and the front engine room assembly has important significance for improving the NVH performance of the whole automobile. The structure for improving the NVH performance of the front-end assembly of the automobile cabin is simple in structure, and can effectively improve the yaw mode and the bending mode of the front end of the cabin and improve the forced resonance risk resistance capability; the dynamic stiffness of the front tower seat point and the left and right suspension points is improved, the vibration isolation capability is improved, and finally the NVH performance of the whole vehicle is improved.
The structure for improving the NVH performance of the front end assembly of the automobile cabin comprises a front longitudinal beam body 1, a front end plastic block 2, a front wheel cover front end upper reinforcing plate 3, a front wheel cover front end plate 4 and a headlamp mounting cross beam 5. The structure for improving the NVH performance of the front end assembly of the automobile engine room further comprises a front wheel cover side reinforcing beam 6, a front wheel cover upper reinforcing beam outer plate 7, a front wheel cover body 8, a front shock absorber seat 9 and a launder body 10. The front wheel casing front end upper reinforcing plate 3 is lapped among the front longitudinal beam body 1, the front wheel casing front end plate 4 and the front wheel casing side reinforcing beam 6. The structure of the utility model breaks away the restriction of the improvement idea in the prior art, and instead, the structure of the front end of the engine room is uniquely designed by considering the whole structure, so that the problem is solved, and the NVH performance of the front end of the engine room is obviously improved.
Improve the front longitudinal member body 1 of the structure of automobile cabin front end assembly NVH performance include left front longitudinal member body and right front longitudinal member body, reinforcing plate 3 includes reinforcing plate on the left front wheel casing front end and reinforcing plate on the right front wheel casing front end on the front wheel casing front end. The front wheel cover front end plate 4 of the structure for improving the NVH performance of the front end assembly of the automobile cabin comprises a left front wheel cover front end plate and a right front wheel cover front end plate, and the headlamp mounting beam 5 comprises a left headlamp mounting beam and a right headlamp mounting beam. The front wheel cover side reinforcing beam 6 comprises a left front wheel cover side reinforcing beam and a right front wheel cover side reinforcing beam, and the front wheel cover upper reinforcing beam outer plate 7 comprises a left front wheel cover upper reinforcing beam outer plate and a right front wheel cover upper reinforcing beam outer plate. The front wheel cover body 8 comprises a left front wheel cover body and a right front wheel cover body, and the front shock absorber seat 9 comprises a left front shock absorber seat and a right front shock absorber seat. In the structure, the structures of the left side and the right side of the automobile body are basically consistent, and the described front cabin assembly system covers the left side and the right side.
The first structural cavity 14 and the second structural cavity 15 are configured to form a continuous frame from the front side member body 1, the launder body 10, the front wheel house body 8, and the front wheel house side reinforcing beam 6. In the structure of the utility model, the front wheel cover inner upper support plate 11 and the front wheel cover inner lower support plate 12 are connected by welding spots to form a small assembly (the left side and the right side are the same), and a first structural cavity 14 is formed among the launder body 10, the front wheel cover body 8 and the front longitudinal beam body 1, so that the front wheel package assembly is strengthened, and the dynamic stiffness of the front tower base is improved by strengthening the front wheel package assembly.
The front wheel casing front end on reinforcing plate 3 pass through the solder joint overlap joint between front longitudinal body 1 and front wheel casing front end plate 4, and front wheel casing front end plate 4 sets up the strengthening rib structure in border local position, form second structure cavity. According to the utility model, the front wheel casing front end upper reinforcing plate 3 is lapped among the front longitudinal beam body 1, the front wheel casing front end plate 4 and the front wheel casing side reinforcing beam 6, so that the Y dynamic stiffness (the same principle is applied to the left side and the right side) of the left suspension bracket assembly 13 and the front end mode of the engine room are improved.
The utility model aims to solve the technical problems in the prior art, provides a structure for improving NVH of a front engine room assembly, and has the following two beneficial effects: 1. the yaw mode and the bending mode of the front end of the engine room are obviously improved, and the forced resonance risk resistance capability is improved; 2. the dynamic stiffness of the front tower seat point and the left and right suspension points is obviously improved, the vibration isolation capability is improved, and the NVH performance of the whole vehicle is improved.
According to the structure for improving the NVH performance of the front-end assembly of the automobile cabin, when the structure is designed, the technical idea is different from the idea based on local structure improvement in the prior art, and the idea is put forward from another angle. Namely: according to the reinforcing scheme considered from the whole structure, a first structural cavity and a second structural cavity are formed, so that the front longitudinal beam body, the launder body, the front wheel cover body and the front wheel cover side reinforcing beam form a continuous frame structure. The front-end yaw mode of the engine room is improved by 20%, the bending mode is improved by 10%, the dynamic stiffness of the left front tower base and the right front tower base is improved by 20%, the NVH performance of a front engine room assembly is effectively improved, and the front engine room assembly has important significance for improving the NVH performance of the whole automobile. The structure for improving the NVH performance of the front-end assembly of the automobile engine room is simple in structure and low in cost, and can effectively improve the yaw mode and the bending mode of the front end of the engine room and improve the forced resonance risk resistance capability; the dynamic stiffness of the front tower seat point and the left and right suspension points is improved, the vibration isolation capability is improved, and finally the NVH performance of the whole vehicle is improved.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the utility model, and its application to other applications without departing from the spirit and scope of the utility model.
Claims (9)
1. The utility model provides an improve structure of car cabin front end assembly NVH performance which characterized in that: an upper support plate (11) in the front wheel cover and a lower support plate (12) in the front wheel cover of the structure for improving the NVH performance of the front end assembly of the automobile cabin are connected through welding spots to form a small assembly, and a first structural cavity (14) is formed among the small assembly, the launder body (10), the front wheel cover body (8) and the front longitudinal beam body (1); the front wheel casing front end on reinforcing plate (3) through the solder joint overlap joint between front longitudinal body (1) and front wheel casing front end board (4), and front wheel casing front end board (4) set up the strengthening rib in border local position, form second structure cavity (15).
2. The structure for improving the NVH performance of the front end assembly of the automobile cabin according to claim 1, wherein: the structure for improving the NVH performance of the front end assembly of the automobile engine room comprises a front longitudinal beam body (1), a front end plastic block (2), a front wheel cover front end upper reinforcing plate (3), a front wheel cover front end plate (4) and a headlamp mounting cross beam (5).
3. The structure for improving the NVH performance of the front end assembly of the automobile cabin according to claim 2, wherein: the structure for improving the NVH performance of the front-end assembly of the automobile engine room further comprises a front wheel cover side reinforcing beam (6), a front wheel cover upper reinforcing beam outer plate (7), a front wheel cover body (8), a front shock absorber seat (9) and a launder body (10).
4. The structure for improving the NVH performance of the front end assembly of the automobile cabin according to claim 3, wherein: the front wheel casing front end upper reinforcing plate (3) is lapped among the front longitudinal beam body (1), the front wheel casing front end plate (4) and the front wheel casing side reinforcing beam (6).
5. The structure for improving the NVH performance of the front end assembly of the automobile cabin according to claim 2, wherein: the front longitudinal beam body (1) of the structure for improving the NVH performance of the front end assembly of the automobile cabin comprises a left front longitudinal beam body and a right front longitudinal beam body, and the front wheel casing front end upper reinforcing plate (3) comprises a left front wheel casing front end upper reinforcing plate and a right front wheel casing front end upper reinforcing plate.
6. The structure for improving the NVH performance of the front end assembly of the automobile cabin according to claim 2, wherein: the front wheel cover front end plate (4) of the structure for improving the NVH performance of the front end assembly of the automobile cabin comprises a left front wheel cover front end plate and a right front wheel cover front end plate, and the headlamp mounting beam (5) comprises a left headlamp mounting beam and a right headlamp mounting beam.
7. The structure for improving the NVH performance of the front end assembly of the automobile cabin according to claim 3, wherein: the front wheel cover side reinforcing beam (6) comprises a left front wheel cover side reinforcing beam and a right front wheel cover side reinforcing beam, and the front wheel cover upper reinforcing beam outer plate (7) comprises a left front wheel cover upper reinforcing beam outer plate and a right front wheel cover upper reinforcing beam outer plate.
8. The structure for improving the NVH performance of the front end assembly of the automobile cabin according to claim 3, wherein: the front wheel cover body (8) comprises a left front wheel cover body and a right front wheel cover body, and the front shock absorber seat (9) comprises a left front shock absorber seat and a right front shock absorber seat.
9. The structure for improving the NVH performance of the front end assembly of the automobile cabin according to claim 1 or 2, wherein: the first structural cavity (14) and the second structural cavity (15) are of a structure capable of forming a continuous framework by the front longitudinal beam body (1), the launder body (10), the front wheel cover body (8) and the front wheel cover side reinforcing beam (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121897931.8U CN216034692U (en) | 2021-08-13 | 2021-08-13 | Structure for improving NVH performance of front-end assembly of automobile cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121897931.8U CN216034692U (en) | 2021-08-13 | 2021-08-13 | Structure for improving NVH performance of front-end assembly of automobile cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216034692U true CN216034692U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121897931.8U Active CN216034692U (en) | 2021-08-13 | 2021-08-13 | Structure for improving NVH performance of front-end assembly of automobile cabin |
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| Country | Link |
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| CN (1) | CN216034692U (en) |
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2021
- 2021-08-13 CN CN202121897931.8U patent/CN216034692U/en active Active
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Denomination of utility model: Structure for improving NVH performance of automobile engine compartment front end assembly Effective date of registration: 20220713 Granted publication date: 20220315 Pledgee: Yibin Development Holding Group Co.,Ltd. Pledgor: YIBIN COWIN AUTO Co.,Ltd. Registration number: Y2022510000190 |