CN203681227U - Spoiler device for reducing wind vibration noise of automobile sunroof - Google Patents
Spoiler device for reducing wind vibration noise of automobile sunroof Download PDFInfo
- Publication number
- CN203681227U CN203681227U CN201320865108.8U CN201320865108U CN203681227U CN 203681227 U CN203681227 U CN 203681227U CN 201320865108 U CN201320865108 U CN 201320865108U CN 203681227 U CN203681227 U CN 203681227U
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- China
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- hollow cylinder
- front edge
- noise
- flow device
- sunroof
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- Expired - Fee Related
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Abstract
The utility model relates to a spoiler device for reducing the wind vibration noise of an automobile sunroof. The spoiler device is arranged on an automobile ceiling plate with the sunroof, and is characterized by being positioned behind the front edge of the sunroof, being transversely arranged nearby the front edge of the sunroof and in parallel to the front edge of the sunroof, and being a hollow cylinder, wherein a central shaft is arranged in the center of the hollow cylinder; two ends of the central shaft stretch out from the hollow cylinder and are fixed onto the left and right edges of the sunroof; a gap is formed between the hollow cylinder and the front edge of the sunroof, and the hollow cylinder is set to be freely rotatable around the central shaft under the torque action of vortex air flow. When the device is mounted at the front edge of the automobile sunroof, noise caused by vortex disengaging of the front edge of an automobile body in running can be reduced, so that the aim of noise reduction is achieved.
Description
Technical field
The utility model relates to a kind of auto parts and components, particularly relates to a kind of for reducing the shake disturbing flow device of noise of vehicle dormer window wind.
Background technology
In the time that vehicle dormer window is opened, in compartment just just as cavity.Upstream edge (leading edge) at opening locates to exist unsettled shear layer, vortex is come off in this position and along with air-flow together backward flow.In the time that they strike the downstream edge (trailing edge) of opening, vortex breakdown, produces a pressure wave of propagating to four sides.Part pressure wave arrives the leading edge of opening, coming off of inducing swirl again.This process can repeat many times each second, and causes that shear layer produces a specific oscillation frequency.
Along with improving constantly and effective control of other noises of car speed, oneself becomes one of Main Noise Sources of hot-short aerodynamics noise, has had a strong impact on the traveling comfort of driving, and also environment has been produced to great pollution simultaneously.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of for reducing the shake disturbing flow device of noise of vehicle dormer window wind, improve the traveling comfort of driving.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
For reducing the shake disturbing flow device of noise of vehicle dormer window wind, be arranged on the Roof of vehicle plate with skylight, it is characterized in that: disturbing flow device is positioned at front edge rear, skylight, and be close to and be parallel to skylight front edge horizontally set; Disturbing flow device is a hollow cylinder, and hollow cylinder center is provided with center shaft, and center shaft two ends are stretched out and are fixed on the left and right edges in skylight from hollow cylinder; Described hollow cylinder and front edge gap, skylight arrange, and are set to can rotate freely around center shaft in the time being subject to the torsional interaction of eddy airstream.
By technique scheme, hollow cylinder is positioned at the highest bus of the top than 0.3～0.5 of the high hollow cylinder rotating diameter of the upper surface of Roof of vehicle plate.
By technique scheme, described hollow cylinder and front edge gap, skylight are set to 0.1～0.3d, the diameter that d is hollow cylinder.
By technique scheme, described hollow cylinder is cylinder or square column.
By technique scheme, the outside face of hollow cylinder is coarse.
By technique scheme, the outside face of hollow cylinder is evenly equipped with particle or is evenly equipped with the helix line that is wound around cylinder, thereby can increase the moment of torsion that post is subject to.
Adopt after this programme, described spoiler is in air flow field, when the wind speed of flowing through when the upper and lower both sides of post is different, under the torsional interaction that post produces at friction force, can start to rotate, thereby reduce or avoid skylight opening part vortex shedding, in the time that this device is arranged on the front edge of vehicle dormer window, the automobile itself in travelling is because the noise that coming off of front edge whirlpool produces can be reduced, thereby reaches the object of noise reduction.
Accompanying drawing explanation
Fig. 1 is the perspective view of an embodiment of the utility model.
Fig. 2 is the local A enlarged drawing in Fig. 1.
Fig. 3 is the structural representation (lateral plan) of an embodiment of the utility model.
Fig. 4 is the disturbing flow device partial enlarged drawing in Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing, 1-4 is further described the utility model.
As Figure 1-4 a kind of for reducing the shake disturbing flow device of noise of vehicle dormer window wind, be arranged on the Roof of vehicle plate 3 with skylight, disturbing flow device is positioned at the rear of skylight 2 front edges, and be close to and be parallel to skylight 2 front edge horizontally sets, disturbing flow device is a hollow cylinder 1, and hollow cylinder 1 center arranges center shaft.Described hollow cylinder 1 is set to front edge gap, skylight the rotating diameter that 0.1～0.3d(d is cylinder), and be set to can rotate around center shaft in the time being subject to the torsional interaction of eddy airstream.
Hollow cylinder 1 is positioned at the highest bus of the top than 0.3～0.5 times of the high hollow cylinder rotating diameter of the upper surface of Roof of vehicle plate 3.
Described hollow cylinder 1 is cylinder or square column.
The outside face of hollow cylinder 1 is coarse, the friction force producing can increase fluid through surface time.
The outside face of hollow cylinder 1 is evenly equipped with particle or is evenly equipped with the helix line that is wound around cylinder, thereby can increase the moment of torsion that post is subject to.
Adopt after this programme, can reduce or avoid skylight opening part air-flow vortex to come off, in the time that this device is arranged on the front edge of vehicle dormer window, the automobile itself in travelling is because the noise that coming off of front edge vortex produces can be reduced, thereby reaches the object of noise reduction.
Claims (6)
1. for reducing the shake disturbing flow device of noise of vehicle dormer window wind, be arranged on the Roof of vehicle plate with skylight, it is characterized in that: disturbing flow device is positioned at front edge rear, skylight, and be close to and be parallel to skylight front edge horizontally set; Disturbing flow device is a hollow cylinder, and hollow cylinder center is provided with center shaft, and center shaft two ends are stretched out and are fixed on the left and right edges in skylight from hollow cylinder; Described hollow cylinder and front edge gap, skylight arrange, and are set to can rotate freely around center shaft in the time being subject to the torsional interaction of eddy airstream.
2. according to claim 1 for reducing the shake disturbing flow device of noise of vehicle dormer window wind, it is characterized in that: hollow cylinder is positioned at the highest bus of the top than 0.3～0.5 of the high hollow cylinder rotating diameter of the upper surface of Roof of vehicle plate.
3. according to claim 1 and 2 for reducing the shake disturbing flow device of noise of vehicle dormer window wind, it is characterized in that: described hollow cylinder and front edge gap, skylight are set to 0.1～0.3d, the diameter that d is hollow cylinder.
4. according to claim 1 and 2 for reducing the shake disturbing flow device of noise of vehicle dormer window wind, it is characterized in that: described hollow cylinder is cylinder or square column.
5. according to claim 1 and 2 for reducing the shake disturbing flow device of noise of vehicle dormer window wind, it is characterized in that: the outside face of hollow cylinder is coarse.
6. according to claim 5 for reducing the shake disturbing flow device of noise of vehicle dormer window wind, it is characterized in that: the outside face of hollow cylinder is evenly equipped with particle or is evenly equipped with the helix line that is wound around cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865108.8U CN203681227U (en) | 2013-12-26 | 2013-12-26 | Spoiler device for reducing wind vibration noise of automobile sunroof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865108.8U CN203681227U (en) | 2013-12-26 | 2013-12-26 | Spoiler device for reducing wind vibration noise of automobile sunroof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203681227U true CN203681227U (en) | 2014-07-02 |
Family
ID=51003170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320865108.8U Expired - Fee Related CN203681227U (en) | 2013-12-26 | 2013-12-26 | Spoiler device for reducing wind vibration noise of automobile sunroof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203681227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108268741A (en) * | 2018-02-08 | 2018-07-10 | 中国汽车工程研究院股份有限公司 | Eliminate the method for skylight noise and skylight horizontal bar |
-
2013
- 2013-12-26 CN CN201320865108.8U patent/CN203681227U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108268741A (en) * | 2018-02-08 | 2018-07-10 | 中国汽车工程研究院股份有限公司 | Eliminate the method for skylight noise and skylight horizontal bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20141226 |
|
| EXPY | Termination of patent right or utility model |