CN107117214A - A kind of flow-guiding structure and automobile - Google Patents
A kind of flow-guiding structure and automobile Download PDFInfo
- Publication number
- CN107117214A CN107117214A CN201710293786.4A CN201710293786A CN107117214A CN 107117214 A CN107117214 A CN 107117214A CN 201710293786 A CN201710293786 A CN 201710293786A CN 107117214 A CN107117214 A CN 107117214A
- Authority
- CN
- China
- Prior art keywords
- deflector
- column
- flow
- metal plate
- adjusting means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D37/00—Stabilising vehicle bodies without controlling suspension arrangements
- B62D37/02—Stabilising vehicle bodies without controlling suspension arrangements by aerodynamic means
Abstract
The present invention relates to a kind of flow-guiding structure and automobile, including：Deflector, adjusting means and column；Column includes column body and column metal plate, and deflector, adjusting means are respectively positioned on the inside of column metal plate, and column metal plate is provided with allowing the bar hole that deflector passes through, length direction extension of the bar hole along column；One end of deflector is connected on column by way of being hinged, and adjusting means is connected with deflector, and area of the adjusting means for adjusting the protruding column metal plate of deflector, to be directed through the vehicle window that the air-flow of deflector bypasses deflector rear.Deflector in the present invention is arranged on body upright post, it is ensured that the necessary function of vehicle body, and does not influence the moulding of automobile, while air-flow can be guided along vehicle body smooth outflow.Deflector is used for the direction for guiding air-flow so that the vehicle window at deflector rear is bypassed by the air-flow of deflector so that air-flow is not applied directly on vehicle window, so as to reduce wind noise and in-car wind shake sound, improves the comfortableness of automobile.
Description
Technical field
The present invention relates to the automobile noise control, and in particular to a kind of flow-guiding structure and automobile.
Background technology
Automobile is when running at high speed, and air-flow can produce wind noise with vehicle body friction.Wind noise outside car is delivered to in-car, into
For in-car topmost noise source.And when opening vehicle window, in-car and car is interlinked to the outside, interior of body one cavity of formation, this
When airflow function on vehicle body, very annoying roar, normally referred to as wind shake sound can be formed in the car.
How problem that wind noise and wind shake sound be the automobile noise control field is controlled.At present, the side of this noise like is controlled
Method has two kinds：The first is as far as possible using streamline body design and streamlined localized design；Second is in reflective mirror
Pedestal on design low early and high after convex curvature so that air-flow bypasses vehicle window.But, both approaches have limitation.The
A kind of method is difficult to realize in engineering, because Automobile Design must is fulfilled for practicality, vehicle body and local hardly possible design
Into intact streamlined, body exterior has the transitional region of transition corner angle, such as front windshield and A posts, and protrusion, such as anti-
Light microscopic etc..Second method is limited by moulding, and vehicle body is in addition to meeting using function, in addition it is also necessary to meet moulding aesthetics, convex
The reflective mirror pedestal risen influences whether the attractive in appearance of vehicle configuration, therefore rarely automobile is designed using such.
The content of the invention
The purpose of the present invention is to propose to a kind of flow-guiding structure and automobile, on the premise of the necessary function of vehicle body is ensured, lead
Flow structure can guide the direction of air-flow so that air-flow is not applied directly on vehicle window, so as to reduce wind noise and in-car wind shake sound.
A kind of flow-guiding structure of the present invention, including：Deflector, adjusting means and column；The column includes column
Body and covering are in the external column metal plate of the column, and the deflector, the adjusting means are respectively positioned in the column metal plate
Side, the column metal plate is provided with allowing the bar hole that the deflector passes through, length direction of the bar hole along the column
Extension；One end of the deflector is connected to by way of being hinged on the column, the adjusting means and the deflector
It is connected, and area of the adjusting means for adjusting the protruding column metal plate of the deflector, to be directed through
The air-flow for stating deflector bypasses the vehicle window at the deflector rear.
Further, the adjusting means includes：
Driving structure, the driving structure connects the deflector, and the driving structure is used to drive the deflector outside
Stretch out on the inside of the column metal plate and inwardly operation to the column metal plate；
Vehicle speed sensor, the vehicle speed sensor is used to detect speed to produce rate signal；
Controller, the controller is connected with the driving structure and the vehicle speed sensor simultaneously, and the controller can connect
The rate signal is received, and the driving structure is controlled according to speed, to adjust the water conservancy diversion according to different speeds come correspondence
The area of the protruding column metal plate of plate.
Further, the adjusting means also includes：Wind transducer, the wind transducer is used to detect wind direction to produce
Wind direction signals；The wind transducer and controller connection, the controller can receive the wind direction signals, and according to
The angle of wind direction and vehicle body controls the driving structure, protruding to adjust the deflector according to different wind directions come correspondence
The area of the column metal plate.
Further, the driving structure include motor and expansion link, the motor be fixedly connected on the column body and
It is connected with the controller, the motor can drive the expansion link to do stretching motion, the expansion link and the deflector
It is hinged.
Further, the output end of the motor is connected with transmission component, and the expansion link is connected with the transmission component, institute
Stating motor can drive the expansion link to do stretching motion by the transmission component.
Further, the expansion link is hydraulically extensible bar, and the transmission component is Hydraulic power units.
Further, the deflector is in sector, and its tip is connected to by way of being hinged on the column.
Further, hinge seat is provided with the column body, one end of the deflector passes through hinge and the hinge seat
It is hinged, the deflector can rotate around the hinge.
Further, provided with the diaphragm seal that is fabricated from a flexible material at the bar hole, the diaphragm seal be provided with it is described
The corresponding otch of deflector, the deflector can pass through the protruding column metal plate of the otch.
A kind of automobile of the present invention, including one or more above-mentioned flow-guiding structures.
Further, the column is the A posts of vehicle body.
The present invention proposes a kind of flow-guiding structure and a kind of automobile provided with flow-guiding structure, and deflector is arranged on body upright post
On, it is ensured that the necessary function of vehicle body, and the moulding of automobile is not influenceed, while air-flow can be guided along the smooth stream of vehicle body
It is dynamic.Deflector is used for the direction for guiding air-flow so that the vehicle window at deflector rear is bypassed by the air-flow of deflector so that air-flow
It is not applied directly on vehicle window, so as to reduce wind noise and in-car wind shake sound, improves the comfortableness of automobile.
Brief description of the drawings
Fig. 1 be existing automobile in motion at A posts air-flow flow schematic diagram；
Fig. 2 is the structural representation of flow-guiding structure of the present invention；
Fig. 3 is the control figure of flow-guiding structure of the present invention.
In figure：1-column；2-air-flow；3-vehicle window；4-column body；5-column metal plate；6-deflector；7-bar shaped
Hole；8-hinge seat；9-hinge；10-support；11-motor；12-transmission component；13-expansion link；14-escape groove.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
A kind of flow-guiding structure as shown in Figure 2, including：Deflector 6, adjusting means and column 1；Column 1 includes column body 4
With column metal plate 5 of the covering outside column body 4, deflector 6, adjusting means are respectively positioned on the inner side of column metal plate 5, column metal plate 5
Provided with the bar hole 7 for allowing deflector 6 to pass through, length direction extension of the bar hole 7 along column 1；One end of deflector 6 is by being hinged
Mode be connected on column 1, adjusting means is connected with deflector 6, and adjusting means is used to adjusting deflector 6 protruding vertical
The area of post metal plate 5, to be directed through the vehicle window 3 that the air-flow of deflector 6 bypasses the rear of deflector 6.Deflector 6 causes air-flow not
It is directly blown onto on vehicle window 3, on the one hand make it that the motion of air-flow is more smooth, it is to avoid separation of the air-flow on glass for vehicle window, reduction
Air-flow rubs the pass-by noise produced with vehicle body；On the other hand, when vehicle window 3 is opened, because air-flow bypasses vehicle window 3, air-flow
Do not act directly on glass for vehicle window, the wind shake sound for reducing pass-by noise excitation and producing in the car.As a preferred embodiment, leading
Stream plate 6 is arranged to outward-dipping from front to back.
As a preferred embodiment, adjusting means includes driving structure, vehicle speed sensor and controller.Driving structure connects water conservancy diversion
Plate 6, and driving structure is used to drive the protruding column metal plate 5 of deflector 6 and inside operation to the inner side of column metal plate 5；Speed
Sensor is used to detect speed to produce rate signal；Controller is connected with driving structure and vehicle speed sensor simultaneously, controller
Rate signal can be received, and driving structure is controlled according to speed, it is outside to adjust deflector 6 according to different speeds come correspondence
Stretch out the area of column metal plate 5.Further, adjusting means also includes：Wind transducer, wind transducer be used for detect wind direction with
Produce wind direction signals；Wind transducer and controller connection, controller can receive wind direction signals, and according to wind direction and vehicle body
Angle controls driving structure, to adjust the area of deflector 6 protruding column metal plate 5 come correspondence according to different wind directions.
In the case of configuring vehicle speed sensor and wind transducer simultaneously, adjusting means can according to different speeds and different wind directions come pair
The area of the protruding column metal plate 5 of deflector 6 should be adjusted.Vehicle speed sensor, wind transducer can be selected in existing automobile
The vehicle speed sensor and wind transducer of ripe utilization.Controller can be one piece of control panel and control system with other of automobile
System is integrated in a control box, and control box is arranged in enging cabin.Controller is used to be passed according to vehicle speed sensor and wind direction
The signal of sensor adjusts steering, run time and the speed of service of motor 11.
Above-mentioned driving structure include motor 11 and expansion link 13, motor 11 be fixedly connected on column body 4 and with control
Device is connected, and motor 11 can drive expansion link 13 to do stretching motion, and expansion link 13 is hinged with deflector 6.Further, motor 11
Output end is connected with transmission component 12, and expansion link 13 is connected with transmission component 12, and motor 11 can be driven by transmission component 12
Expansion link 13 does stretching motion, and expansion link 13, which does stretching motion, can drive the protruding column metal plate 5 of deflector 6 and inwardly fortune
On the inside of row to column metal plate 5.Expansion link 13 can be hydraulically extensible bar, and now transmission component 12 is Hydraulic power units, hydraulic pressure
Expansion link is stable and support is reliable.Specifically, motor 11 can be arranged on column body 4 by support 10, support 10 is consolidated
It is scheduled on column body 4, motor 11 is fixed over the mount 10.The knot that above-mentioned driving structure can also be coordinated from rack pinion
Structure, rack is arranged on the back side of deflector 6, and gear is arranged on motor and engaged with rack, led using gear rotation to drive
Stream plate 6 is moved.In order to avoid expansion link 13, an escape groove being connected with bar hole 7 can be set in the end of bar hole 7
14, expansion link 13 passes through escape groove 14.
As a preferred embodiment, deflector 6 is in sector, its tip is connected to by way of being hinged on column 1.Using the knot
Structure, realizes the maximization of the area of deflector 6 while ensureing that deflector 6 can take in column 5 inner side of metal plate completely.Enter one
Step, the one end larger with deflector 6 of expansion link 13 is hinged, to form good support.
As a preferred embodiment, being provided with hinge seat 8 on column body 4, one end of deflector 6 is cut with scissors by hinge 9 with hinge seat 8
Connect, deflector 6 can around hinge 9 rotate.Hinge seat 8 is fixedly connected on column body 4, has the advantages that to firmly install.
Further, provided with the diaphragm seal being fabricated from a flexible material at bar hole 7, diaphragm seal can be set to outer surface and column
The structure of the flush with outer surface of metal plate 5, diaphragm seal be provided with the corresponding otch of deflector 6, deflector 6 can be outside by otch
Stretch out column metal plate 5.Diaphragm seal ensure that in-car it is outer between seal request, while ensure that the complete of the outward appearance of column metal plate 5
Good property；Further, diaphragm seal covering escape groove 14, otch extends to escape groove 14, and expansion link 13 is passed through by escape groove 14 and cut
Mouthful.
Using said structure, the area of the protruding column metal plate 5 of deflector 6 becomes with speed and wind direction.When speed increases
When big, the area increase of the protruding column metal plate 5 of deflector 6；Angle between wind direction and vehicle body is bigger, and deflector 6 is outside
The area for stretching out column metal plate 5 is also bigger.As shown in figure 3, controller is transported according to the angle and speed of wind direction and vehicle body
Calculate and send instruction to motor 11, motor 11 is rotated according to instruction, and to drive expansion link 13 to do stretching motion, expansion link 13 drives
The around hinge of deflector 6 seat 8 rotates, so as to adjust the area of the protruding column metal plate 5 of deflector 6.
The invention also provides a kind of automobile, it includes one or more above-mentioned flow-guiding structures.As a preferred embodiment, vertical
Post 1 is the A posts of vehicle body.As shown in figure 1, existing automobile is in motion, the air-flow 2 at column 1 can simultaneously be gone back with vehicle body friction
Wind noise and wind shake sound can be formed at vehicle window 3.And after flow-guiding structure is arranged on the A posts of vehicle body, solve the outer backsight of vehicle body
The turbulent big and big problem of noise of mirror regional gas stream, reduces the wind noise and wind at the vehicle window 3 at A-pillar region domain and A posts rear
Shake sound.
Deflector 6 on automobile of the present invention is hidden in column 1 when not in use, vehicle static or is run at a low speed
When, deflector 6 does not stretch out, and meets shape-designing and Aesthetic Function.When speed increase to a certain extent when（Such as 60 kilometers/small
When）, deflector 6 starts to extend out to outside column 1, to guide air-flow to bypass the vehicle window 3 at the rear of column 1, with speed increase and
The change of wind direction, driving structure can make corresponding adjustment to the area that deflector 6 stretches out under the control of the controller.
Claims (10)
1. a kind of flow-guiding structure, it is characterised in that including：Deflector（6）, adjusting means and column（1）；The column（1）Bag
Include column body（4）With covering in the column body（4）Outer column metal plate（5）, the deflector（6）, the adjusting means it is equal
Positioned at the column metal plate（5）Inner side, the column metal plate（5）Provided with allowing the deflector（6）The bar hole passed through（7）,
The bar hole（7）Along the column（1）Length direction extension；The deflector（6）One end connected by way of being hinged
It is connected on the column（1）On, the adjusting means and the deflector（6）It is connected, and the adjusting means is used to adjust described
Deflector（6）The protruding column metal plate（5）Area, to be directed through the deflector（6）Air-flow bypass it is described
Deflector（6）The vehicle window at rear（3）.
2. flow-guiding structure according to claim 1, it is characterised in that：The adjusting means includes：
Driving structure, the driving structure connects the deflector（6）, and the driving structure is for driving the deflector
（6）The protruding column metal plate（5）With inside operation to the column metal plate（5）Inner side；
Vehicle speed sensor, the vehicle speed sensor is used to detect speed to produce rate signal；
Controller, the controller is connected with the driving structure and the vehicle speed sensor simultaneously, and the controller can connect
The rate signal is received, and the driving structure is controlled according to speed, to adjust the water conservancy diversion according to different speeds come correspondence
Plate（6）The protruding column metal plate（5）Area.
3. flow-guiding structure according to claim 2, it is characterised in that：The adjusting means also includes：Wind transducer, institute
Stating wind transducer is used to detect wind direction to produce wind direction signals；The wind transducer and controller connection, the control
Device processed can receive the wind direction signals, and control the driving structure according to the angle of wind direction and vehicle body, with according to difference
Wind direction adjusts the deflector to correspond to（6）The protruding column metal plate（5）Area.
4. the flow-guiding structure according to Claims 2 or 3, it is characterised in that：The driving structure includes motor（11）With stretch
Contracting bar（13）, the motor（11）It is fixedly connected on the column body（4）Go up and be connected with the controller, the motor（11）
The expansion link can be driven（13）Do stretching motion, the expansion link（13）With the deflector（6）It is hinged.
5. flow-guiding structure according to claim 4, it is characterised in that：The motor（11）Output end be connected with transmission group
Part（12）, the expansion link（13）With the transmission component（12）Connection, the motor（11）The transmission component can be passed through
（12）Drive the expansion link（13）Do stretching motion.
6. flow-guiding structure according to claim 5, it is characterised in that：The expansion link（13）It is described for hydraulically extensible bar
Transmission component（12）For Hydraulic power units.
7. flow-guiding structure according to claim 1, it is characterised in that：The deflector（6）In sector, its tip passes through hinge
The mode connect is connected to the column（1）On.
8. the flow-guiding structure according to claim 1 or 7, it is characterised in that：The column body（4）On be provided with hinge seat
（8）, the deflector（6）One end pass through hinge（9）With the hinge seat（8）It is hinged, the deflector（6）Can be around described
Hinge（9）Rotation.
9. flow-guiding structure according to claim 1, it is characterised in that：The bar hole（7）Place is provided with by flexible material system
Into diaphragm seal, the diaphragm seal be provided with and the deflector（6）Corresponding otch, the deflector（6）Can by institute
State the protruding column metal plate of otch（5）.
10. a kind of automobile, it is characterised in that：Including one or more flow-guiding structures as described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293786.4A CN107117214B (en) | 2017-04-28 | 2017-04-28 | A kind of flow-guiding structure and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293786.4A CN107117214B (en) | 2017-04-28 | 2017-04-28 | A kind of flow-guiding structure and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107117214A true CN107117214A (en) | 2017-09-01 |
| CN107117214B CN107117214B (en) | 2019-06-04 |
Family
ID=59725108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710293786.4A Active CN107117214B (en) | 2017-04-28 | 2017-04-28 | A kind of flow-guiding structure and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107117214B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111428332A (en) * | 2019-01-09 | 2020-07-17 | 丰田自动车工程及制造北美公司 | Vehicle interface for active crosswind management |
| CN111746672A (en) * | 2020-06-30 | 2020-10-09 | 浙江吉利汽车研究院有限公司 | Turbulence device, vehicle and method for disturbing wind vibration of vehicle |
| CN112141228A (en) * | 2020-09-14 | 2020-12-29 | 中国第一汽车股份有限公司 | Method for eliminating wind vibration of front window of passenger car by using intelligent spoiler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3520971A1 (en) * | 1985-06-12 | 1986-09-25 | Daimler-Benz Ag, 7000 Stuttgart | Spoiler for motor vehicles |
| JP2006219049A (en) * | 2005-02-14 | 2006-08-24 | Toyota Motor Corp | Above-vehicle air flow control device |
| US20160129951A1 (en) * | 2014-11-06 | 2016-05-12 | Hyundai Motor Company | Adjustable spoiler for vehicle and method for controlling the same |
| CN105835803A (en) * | 2015-02-04 | 2016-08-10 | 通用汽车环球科技运作有限责任公司 | Automatic mitigation of vehicle wind buffeting |
| CN106114655A (en) * | 2016-08-24 | 2016-11-16 | 俞旭辉 | A kind of height adjustable automobile spoiler |
| CN106553702A (en) * | 2015-09-30 | 2017-04-05 | 富士重工业株式会社 | The wind noise of vehicle reduces structure |
-
2017
- 2017-04-28 CN CN201710293786.4A patent/CN107117214B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3520971A1 (en) * | 1985-06-12 | 1986-09-25 | Daimler-Benz Ag, 7000 Stuttgart | Spoiler for motor vehicles |
| JP2006219049A (en) * | 2005-02-14 | 2006-08-24 | Toyota Motor Corp | Above-vehicle air flow control device |
| US20160129951A1 (en) * | 2014-11-06 | 2016-05-12 | Hyundai Motor Company | Adjustable spoiler for vehicle and method for controlling the same |
| CN105835803A (en) * | 2015-02-04 | 2016-08-10 | 通用汽车环球科技运作有限责任公司 | Automatic mitigation of vehicle wind buffeting |
| CN106553702A (en) * | 2015-09-30 | 2017-04-05 | 富士重工业株式会社 | The wind noise of vehicle reduces structure |
| CN106114655A (en) * | 2016-08-24 | 2016-11-16 | 俞旭辉 | A kind of height adjustable automobile spoiler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111428332A (en) * | 2019-01-09 | 2020-07-17 | 丰田自动车工程及制造北美公司 | Vehicle interface for active crosswind management |
| CN111746672A (en) * | 2020-06-30 | 2020-10-09 | 浙江吉利汽车研究院有限公司 | Turbulence device, vehicle and method for disturbing wind vibration of vehicle |
| CN112141228A (en) * | 2020-09-14 | 2020-12-29 | 中国第一汽车股份有限公司 | Method for eliminating wind vibration of front window of passenger car by using intelligent spoiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107117214B (en) | 2019-06-04 |
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