CN210882368U - Automobile duck tail capable of reducing wind resistance - Google Patents
Automobile duck tail capable of reducing wind resistance Download PDFInfo
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- CN210882368U CN210882368U CN201921723738.5U CN201921723738U CN210882368U CN 210882368 U CN210882368 U CN 210882368U CN 201921723738 U CN201921723738 U CN 201921723738U CN 210882368 U CN210882368 U CN 210882368U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/82—Elements for improving aerodynamics
Abstract
The utility model discloses a fall car duck tail of windage, car duck tail (1) fixed mounting is in the back upper corner department of afterbody automobile body (2), the cross section of car duck tail is triangle-shaped class cross-section, the car duck tail surface that triangle-shaped's longest edge was located is upper portion water conservancy diversion face (11), the car duck tail surface that triangle-shaped's second long edge was located is lower part installation face (12), the car duck tail surface that triangle-shaped's shortest edge was located is back tail face (13), and the contained angle between upper portion water conservancy diversion face and the lower part installation face is the upper rake angle; the upper surface at the afterbody automobile body is fixed in the laminating of lower part installation face, upwarp angle is towards the plantago, the back tail face is towards the rear of a vehicle, and the front end of upper portion water conservancy diversion face links up with the upper surface level and smooth of afterbody automobile body, and the back end of upper portion water conservancy diversion face upwards perks, and the lower extreme and the afterbody automobile body rear end face level and smooth link up of back tail face, the upper portion water conservancy diversion face is 4 ~ 10 degrees with the contained angle of horizontal plane.
Description
Technical Field
The utility model relates to a windage device is fallen to the car especially relates to a car duck tail that falls the windage.
Background
At present, in the design and production process of cars, the practicability of the car is generally considered more, and the appearance is more beautiful for the appearance of the car, and with the popularization of the family cars in common people and the rising of energy prices, the energy consumption of the cars is concerned more by car users.
The tail part of the existing car is designed to be in a square shape on the whole, and the shape can enable the tail part of the car to generate a large vortex area in the driving process, and the vortex area can damage the overall air flow field around the car, so that wind resistance is caused, the driving speed of the car is influenced, and the energy consumption of the car per unit mileage can be increased.
Disclosure of Invention
An object of the utility model is to provide a fall automobile duck tail of windage, this automobile duck tail install the air flow field of department of guide rear of a vehicle department in the back upper corner of afterbody automobile body to reduce the aerodynamic drag of vehicle, reduced the energy consumption of vehicle unit mileage.
In order to realize the technical purpose, the utility model adopts the following technical scheme:
the automobile duck tail capable of reducing the wind resistance is fixedly arranged at the rear upper corner of a tail body; the cross section of the automobile duck tail is a triangular section, the surface of the automobile duck tail where the longest side of the triangle is located is an upper flow guide surface, the surface of the automobile duck tail where the second long side of the triangle is located is a lower mounting surface, the surface of the automobile duck tail where the shortest side of the triangle is located is a rear tail surface, and an included angle between the upper flow guide surface and the lower mounting surface is an upward warping angle; the lower part installation face is fixedly attached to the upper surface of the tail vehicle body, the upwarp angle faces the front of the vehicle, the rear tail face faces the rear of the vehicle, the front end of the upper part flow guide face is smoothly connected with the upper surface of the tail vehicle body, the rear end of the upper part flow guide face upwards tilts, and the lower end of the rear tail face is smoothly connected with the rear end face of the tail vehicle body.
Furthermore, the included angle between the upper diversion surface and the horizontal plane is 4-10 degrees.
Furthermore, the included angle between the upper diversion surface and the horizontal plane is 6 degrees.
The utility model discloses an upper back corner department at the afterbody automobile body is installed to car duck tail, the air flow field of rectifier vehicle rear department can be guided well to the upper portion water conservancy diversion face of car duck tail to reduce the vortex area of rear of a vehicle department, especially when the upper portion water conservancy diversion face of car duck tail and the contained angle of horizontal plane when 4 ~ 10 degrees within ranges, it is particularly good to fall the windage effect, thereby vehicle aerodynamic drag has been reduced, the energy consumption of vehicle unit mileage has been reduced, under the condition that does not destroy vehicle overall structure, the duration of vehicle has been promoted.
Drawings
Fig. 1 is a schematic structural view of the wind resistance reducing automobile duck tail installed at the tail of the automobile;
fig. 2 is a partial cross-sectional view of the dotted square in fig. 1.
In the figure: 1, a duck tail of an automobile, 11 upper flow guide surfaces, 12 lower mounting surfaces, 13 rear tail surfaces, 2 tail automobile bodies and 3 special fixing pieces.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
referring to fig. 1 and 2, including afterbody automobile body 2 and car duck tail 1 in the figure, car duck tail 1 wherein does the utility model discloses a concrete implementation, the cross section of car duck tail 1 is triangle-shaped class cross-section, the car duck tail 1 surface at triangle-shaped's longest edge place is upper portion water conservancy diversion face 11, the car duck tail 1 surface at triangle-shaped's the long limit place of second is lower part installation face 12, the car duck tail 1 surface at triangle-shaped's the shortest limit place is back tail face 13, and the contained angle between upper portion water conservancy diversion face 11 and the lower part installation face 12 is the rake angle.
After the duck tail 1 of the automobile is arranged at the tail part of the car, the airflow condition at the tail part of the automobile is effectively improved, the vortex area at the tail part of the car is weakened, the aerodynamic resistance of the automobile is reduced, and the energy consumption of the automobile in unit mileage is reduced.
According to the conclusion obtained by the pneumatic test, under the normal condition, when the included angle between the upper flow guide surface 11 of the duck tail 1 of the automobile and the horizontal plane is in the range of 4-10 degrees, the effect of reducing the wind resistance is excellent.
The upper surface of different motorcycle type afterbody is respectively different for the angle of horizontal plane, therefore the upwarp angle of car duck tail 1 also should be set for different angles, treats to install on the automobile body back, and the contained angle of upper portion water conservancy diversion face 11 and horizontal plane should guarantee in 4 ~ 10 degrees within ranges.
In the embodiment, the included angle between the upper diversion surface 11 of the automobile duck tail 1 and the horizontal plane is 6 degrees. Through wind tunnel test verification, the pneumatic resistance coefficient of the whole vehicle of the vehicle in the embodiment is reduced by 0.006 relative to the vehicle without the duck tail, and in addition, the pneumatic resistance coefficient of the whole vehicle is respectively reduced by 0.003 and 0.002 relative to the vehicle with the duck tail with the included angle of 4 degrees and 10 degrees, so that the energy consumption required by unit mileage is effectively reduced, and the cruising ability of the vehicle is improved under the condition that the integral structure of the vehicle is not damaged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (3)
1. An automobile duck tail for reducing wind resistance is characterized in that the automobile duck tail (1) is fixedly arranged at the rear upper corner of a tail automobile body (2); the method is characterized in that: the cross section of the automobile duck tail (1) is a triangular section, the surface of the automobile duck tail (1) where the longest side of the triangle is located is an upper flow guide surface (11), the surface of the automobile duck tail (1) where the second long side of the triangle is located is a lower mounting surface (12), the surface of the automobile duck tail (1) where the shortest side of the triangle is located is a rear tail surface (13), and an included angle between the upper flow guide surface (11) and the lower mounting surface (12) is an upward warping angle;
the lower part installation face (12) is fixed to be attached to the upper surface of the tail vehicle body (2), the upwarp angle faces the front of the vehicle, the rear tail face (13) faces the rear of the vehicle, the front end of the upper part flow guide face (11) is smoothly connected with the upper surface of the tail vehicle body (2), the rear end of the upper part flow guide face (11) upwards tilts, and the lower end of the rear tail face (13) is smoothly connected with the rear end face of the tail vehicle body (2).
2. The wind resistance-reducing automobile duck tail according to claim 1, wherein: the included angle between the upper diversion surface (11) and the horizontal plane is 4-10 degrees.
3. The wind resistance-reducing automobile duck tail according to claim 2, wherein: the included angle between the upper diversion surface (11) and the horizontal plane is 6 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921723738.5U CN210882368U (en) | 2019-10-15 | 2019-10-15 | Automobile duck tail capable of reducing wind resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921723738.5U CN210882368U (en) | 2019-10-15 | 2019-10-15 | Automobile duck tail capable of reducing wind resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210882368U true CN210882368U (en) | 2020-06-30 |
Family
ID=71322234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921723738.5U Active CN210882368U (en) | 2019-10-15 | 2019-10-15 | Automobile duck tail capable of reducing wind resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210882368U (en) |
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2019
- 2019-10-15 CN CN201921723738.5U patent/CN210882368U/en active Active
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