CN116331368A

CN116331368A - Rear spoiler structure

Info

Publication number: CN116331368A
Application number: CN202310082929.2A
Authority: CN
Inventors: 陈强; 陆凤; 王梓; 卢宗银; 吴鹏; 李伟
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-06-27

Abstract

The invention discloses a rear spoiler structure, which is characterized in that: the vehicle comprises a first sub-assembly connected to a vehicle body and a second sub-assembly connected with the first sub-assembly, wherein a hollowed-out area is formed between the first sub-assembly and the second sub-assembly. The rear spoiler structure disclosed by the invention has a simple structure, can effectively reduce wind resistance and wind noise, and has stronger practicability and better application prospect.

Description

Rear spoiler structure

Technical Field

The invention belongs to the technical field of automobiles, and particularly relates to a rear spoiler structure.

Background

With the development of the times, the society is continuously advanced, and the living standard of people is also improved. Automobiles used as a walking tool are also becoming popular, and meanwhile, the requirements of people on the appearance, the performance and the like of the automobiles are gradually improved.

The rear spoiler (also called as a tail wing) bears the decorative effect of the appearance of the whole vehicle, and has the functions of reducing wind resistance/wind noise, reducing the lifting force of the tail part of the vehicle, improving the running safety of the vehicle and the like. In recent years, many automobile modeling styles are biased to fashion sports, and the automobile model has individual foreguards and hollow rear spoilers.

Because the profile and the shape of the hollowed-out spoiler are suddenly changed, the airflow of the automobile is turbulent in the running process, and the adverse conditions of wind resistance and increased noise in the automobile are caused. Therefore, how to reduce the wind resistance and wind noise of the hollow spoiler to the whole vehicle is a new subject for the automobile.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a rear spoiler structure which is simple in structure and capable of effectively reducing wind resistance and wind noise.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the rear spoiler structure that provides, its characterized in that: the vehicle comprises a first sub-assembly connected to a vehicle body and a second sub-assembly connected with the first sub-assembly, wherein a hollowed-out area is formed between the first sub-assembly and the second sub-assembly.

In order to make the above technical solution more detailed and concrete, the present invention further provides the following preferred technical solutions, so as to obtain a satisfactory practical effect:

the first sub-assembly and the second sub-assembly are connected at two ends and the middle of the whole vehicle in the Y direction, and two hollowed-out areas are formed among the three connecting positions.

The first sub-assembly comprises a spoiler upper body and a spoiler lower body, and a middle support is arranged between the spoiler upper body and the spoiler lower body.

The spoiler lower body with the relative position department of fretwork region is equipped with a plurality of fretwork water conservancy diversion strips that the interval set up.

The hollow guide strips are arc-shaped structures arranged along the front-back airflow direction.

The hollowed-out guide strips and the spoiler lower body are integrally injection molded.

The left rubber cushion and the right rubber cushion are respectively arranged at two ends of the first sub-assembly.

The second sub assembly comprises a hollowed lower cover plate, and a left mounting framework and a right mounting framework are arranged in the hollowed lower cover plate.

And a duck tail structure is arranged behind the hollowed lower cover plate of the second sub assembly.

The first sub-assembly is connected with the second sub-assembly through bolts.

Compared with the prior art, the invention has the following advantages: the rear spoiler structure disclosed by the invention has a simple structure, can effectively reduce wind resistance and wind noise, and has stronger practicability and better application prospect.

Drawings

The contents expressed in the drawings of the present specification and the marks in the drawings are briefly described as follows:

FIG. 1 is a schematic view of a rear spoiler of the present invention;

FIG. 2 is a rear spoiler isometric view of the present invention;

FIG. 3 is a top view of a rear spoiler of the present invention;

FIG. 4 is a schematic view of the junction between a first sub-assembly and a second sub-assembly according to the present invention;

FIG. 5 is a schematic view of a first sub-assembly of the present invention;

FIG. 6 is a schematic diagram of a second sub-assembly according to the present invention;

FIG. 7 is a Y-direction cross section of a hollow area of a rear spoiler according to the present invention;

FIG. 8 is a Y-direction cross section of a hollow area (hollow guide strips) of the rear spoiler according to the present invention;

FIG. 9 is a schematic view of a rear spoiler according to the present invention;

FIG. 10 is a schematic view of the partially enlarged structure of FIG. 9;

FIG. 11 is a schematic diagram showing the front-to-back comparison of wind resistance of the rear spoiler structure of the present invention in a model wind tunnel test;

FIG. 12 is a schematic diagram showing the comparison of wind noise of the rear spoiler structure in the model wind tunnel test,

marked in the figure as: 1. a rear spoiler; 11. a first sub-assembly; 12. a second sub-assembly; 111. a spoiler upper body; 112. a spoiler lower body; 113. a middle bracket; 114. a left rubber pad; 115. a right rubber pad; 121. a lower cover plate is hollowed out; 122. a left mounting framework; 123. a right mounting framework; 2. a back door; 3. a rear windshield; 4. a side wall outer plate; 5. rear four corner window; 6. a top cover;

a. hollow areas; b. hollow guide strips; c. and d, a duck tail structure and a spiro union region.

Detailed Description

The following description of the embodiments of the present invention refers to the accompanying drawings, which illustrate in further detail.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The invention provides a rear spoiler structure, which comprises two parts, namely a first sub-assembly 11 and a second sub-assembly 12, as shown in fig. 1, 2, 3 and 4, wherein the specific parts comprise a spoiler upper body 111, a spoiler lower body 112, a middle bracket 113, a left rubber pad 114, a right rubber pad 115, a hollowed-out lower cover plate 121, a left mounting framework 122 and a right mounting framework 123. The spoiler upper body 111, the spoiler lower body 112 and the middle bracket 113 are connected by structural adhesive and welding, as shown in fig. 5, the spoiler lower body 112 is adhered below the spoiler upper body 111, and the middle bracket 113 is located inside the spoiler upper body 111 and the spoiler lower body 112 to form a middle support. The left rubber pad 114 and the right rubber pad 115 are connected with the body through double faced adhesive tape, so as to form a first sub-assembly 11; the left rubber pad 114 is located on the left side of the first sub-assembly 11 and the right rubber pad 115 is located on the right side of the first sub-assembly 11. The hollowed-out lower cover plate 121, the left mounting framework 122 and the right mounting framework 123 are connected by means of structural glue, so that a second sub-assembly 12 is formed, as shown in fig. 6; further, the first sub-assembly 11 and the second sub-assembly 12 are connected by screwing to form the rear spoiler 1, so that the rear spoiler 1 is convenient to manufacture, form, install and detach, and form two hollow areas a on the mounted spoiler 1, as shown in fig. 4, three screwed areas d are formed at two ends and in the middle.

As shown in fig. 2, the first sub-assembly 11 and the second sub-assembly 12 have connection relations only at the left side, the middle and the right side, and the other areas form a hollowed-out effect, and the hollowed-out areas a are treated in a bilateral symmetry manner. According to the whole vehicle modeling scheme and the wind tunnel test, the hollowed-out areas a are arranged on the left side and the right side of the upper part of the tail of the vehicle, and are symmetrically arranged left and right by taking Y0 as a boundary line under the whole vehicle coordinate. The second sub-assembly 12 is in smooth arc transition with the top cover, the first sub-assembly 11 is higher than the second sub-assembly 12, and as shown in fig. 7 and 8, a hollowed-out area a in smooth transition with the top cover of the vehicle roof is formed between the first sub-assembly 11 and the second sub-assembly 12.

As shown in fig. 2 and 8, at the hollowed-out area a, a hollowed-out guide bar b in the shape of a kayak is designed on the lower surface of the spoiler lower body 112 (4 guide bars b are designed in the hollowed-out area on the left side, and 4 guide bars b are designed in the hollowed-out area on the right side, which is 8 guide bars in total). The hollow guide strips b are arranged at intervals along the whole vehicle Y direction of the hollow area. The middle width of the hollowed-out guide strip b is larger, the hollowed-out guide strip b extends towards the front end and the rear end, and the width of the hollowed-out guide strip b is gradually reduced; the outer surface is a smooth arcuate surface as shown in fig. 8. The structure can effectively guide the trend of air flow and optimize the wind resistance and wind noise of the whole car.

As shown in fig. 4, in the rear area of the second subassembly 12, a duck tail structure c is designed, and the duck tail structure c and the hollowed lower cover plate 121 are integrally injection molded, so that the trend of air flow can be effectively guided, and the wind resistance and wind noise of the whole automobile can be optimized. The duck tail structure is formed by tilting the tail end of the cambered surface structure of the second sub-assembly 12, and the structure is optimized by combining the whole vehicle wind tunnel test structure. As shown in fig. 7 and 8, in the X-coordinate direction, the beginning end of the duck tail structure is opposite to the front end of the first subassembly 11 and extends backwards and upwards, the tail end of the duck tail structure is opposite to the hollowed-out guide strip b, i.e. in the airflow guiding-out position behind the hollowed-out area a, the airflow guiding-out space has a certain reduced shape in the up-down direction compared with the front end, so that wind noise can be reduced well.

As shown in fig. 8, as can be seen from the Y-directional section, the hollowed-out guide bar b and the spoiler lower body 112 are integrally injection molded, and the length direction is consistent with the X-direction of the whole vehicle.

As shown in fig. 9 and 10, in the fit clearance area formed by the rear spoiler 1, the side wall outer plate 4, the rear four-corner window 5 and the top cover 6, a left rubber pad 114 and a right rubber pad 115 are designed, and the left rubber pad 114 and the right rubber pad 115 are used for shielding the fit clearance at the position, so that the wind resistance of the whole automobile can be effectively reduced.

The invention discloses a rear spoiler structure, which solves the technical problem of large wind resistance and wind noise caused by turbulence of a hollowed spoiler in vehicle running.

Through the optimization measures, the wind resistance of the whole vehicle is greatly improved, the optimized wind resistance value is 13count, and fig. 11 shows the front-back comparison effect of the wind resistance of the whole vehicle through simulation analysis.

Through the optimization measures, the wind noise of the whole vehicle is also greatly improved, the sound pressure level of a rear passenger is improved by 1.17dBA, the voice definition is improved by 3.1%, and fig. 12 shows the front-back comparison effect of the wind noise of the whole vehicle in a wind tunnel test.

The rear spoiler structure is formed by injection molding, the upper spoiler body 111, the lower spoiler body 112 and the middle bracket 113 are connected by adopting structural adhesive bonding and welding, so that excessive structures do not exist on the inner surface of the product, and appearance defects such as outer surface reduction marks are avoided; the left rubber pad 114 and the right rubber pad 115 are connected with the body through double-sided adhesive tapes; the hollowed lower cover plate 121, the left mounting framework 122 and the right mounting framework 123 are connected in a structural adhesive bonding mode, so that excessive structures do not exist on the inner surface of the product, and appearance defects such as outer surface reduction printing are avoided; the first sub-assembly 11 and the second sub-assembly 12 are assembled into an assembly product piece in a threaded connection mode; the first sub-assembly 11 and the second sub-assembly 12 are connected at the left side, the middle and the right side, and other areas form a hollowed-out area (2, left and right symmetry); the hollow guide strip b is designed at the lower part of the first sub-assembly 11, and the duck tail structure c is designed at the rear part of the second sub-assembly 12, so that wind resistance and wind noise caused by air turbulence due to the hollow structure of the spoiler can be effectively reduced; meanwhile, rubber pad structures are designed on two sides of the rear spoiler, so that fit gaps between the spoiler and the side wall outer plate 4 and between the spoiler and the rear four-corner window 5 can be shielded, and the wind resistance and wind noise problems are optimized to a certain extent.

In the vehicle research and development process, although some contradiction points exist in modeling development and engineering development, the modeling development and engineering development are complementary and mutually fused, so that the balance and the optimality of various indexes of the whole vehicle are achieved. The structure and the characteristics of the product disclosed by the invention are not limited to the structure and the characteristics, and are perfect fusion of modeling development and engineering development.

The rear spoiler structure disclosed by the invention has a simple structure, can effectively reduce wind resistance and wind noise, and has stronger practicability and better application prospect.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The invention has been described above by way of example with reference to the accompanying drawings, but the invention is not limited to the above, as long as various insubstantial modifications by the method concepts and technical solutions of the invention or direct application to other applications are within the scope of the invention.

Claims

1. A rear spoiler structure, characterized in that: the vehicle comprises a first sub-assembly connected to a vehicle body and a second sub-assembly connected with the first sub-assembly, wherein a hollowed-out area is formed between the first sub-assembly and the second sub-assembly.

2. The rear spoiler structure according to claim 1, wherein: the first sub-assembly and the second sub-assembly are connected at two ends and the middle of the whole vehicle in the Y direction, and two hollowed-out areas are formed among the three connecting positions.

3. The rear spoiler structure according to claim 2, wherein: the first sub-assembly comprises a spoiler upper body and a spoiler lower body, and a middle support is arranged between the spoiler upper body and the spoiler lower body.

4. A rear spoiler structure according to claim 3, characterized in that: the spoiler lower body with the relative position department of fretwork region is equipped with a plurality of fretwork water conservancy diversion strips that the interval set up.

5. The rear spoiler structure according to claim 4, wherein: the hollow guide strips are arc-shaped structures arranged along the front-back airflow direction.

6. The rear spoiler structure according to claim 5, wherein: the hollowed-out guide strips and the spoiler lower body are integrally injection molded.

7. A rear spoiler structure according to claim 3, characterized in that: the left rubber cushion and the right rubber cushion are respectively arranged at two ends of the first sub-assembly.

8. The rear spoiler structure according to any one of claims 1 to 7, characterized in that: the second sub assembly comprises a hollowed lower cover plate, and a left mounting framework and a right mounting framework are arranged in the hollowed lower cover plate.

9. The rear spoiler structure according to claim 8, wherein: and a duck tail structure is arranged behind the hollowed lower cover plate of the second sub assembly.

10. The rear spoiler structure according to claim 1, wherein: the first sub-assembly is connected with the second sub-assembly through bolts.