CN102826133A - Additional device inhibiting dust polluting back of automobile body, mounting method thereof and automobile - Google Patents
Additional device inhibiting dust polluting back of automobile body, mounting method thereof and automobile Download PDFInfo
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- CN102826133A CN102826133A CN201210338135XA CN201210338135A CN102826133A CN 102826133 A CN102826133 A CN 102826133A CN 201210338135X A CN201210338135X A CN 201210338135XA CN 201210338135 A CN201210338135 A CN 201210338135A CN 102826133 A CN102826133 A CN 102826133A
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- guide face
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Abstract
The invention discloses an additional device inhibiting dust polluting back of an automobile body, a mounting method thereof and an automobile. The additional device comprises a diversion body and a support body; the support body is used for connecting the diversion body and an automobile body; the diversion body is in a long-strip shape, the cross section of the middle part of the diversion body is a triangle-like shape; the diversion body comprises three diversion surfaces, which are respectively an upper diversion surface, a front diversion surface and a rear diversion surface; the arc length of the upper diversion surface on the cross section is smaller than that of the front diversion surface and that of the rear diversion surface; both the front diversion surface and the upper diversion surface are concave surfaces; the rear diversion surface is a convex surface; and the support body is arranged on the front diversion surface. The invention further discloses a mounting method for mounting the additional device on the automobile, and the automobile which is additionally provided with the automobile additional device according to the mounting method to inhibit the dust polluting the back of the automobile body. The additional device is simple in structure and convenient in installation, and effectively inhibits the dust polluting the back of the automobile body.
Description
Technical field
The present invention relates to the automobile body design field, relate in particular to a kind of additional device and installation method and automobile that dust pollutes the vehicle body back that suppress.
Background technology
Along with society and developing of automobile industry, automobile has been not only walking-replacing tool, and its society & culture's function also highlights all the more.Rich color, all kinds of automobiles that come in every shape have formed city and big a lot of scenery on the ground, for having brought innervation and aesthetic feeling in the world.
Additional devices such as empennage usually are equipped with at the motorcar body back now, and the installation and design of part automobile empennage mainly is to pay close attention to its moulding attractive in appearance, becomes a kind of mode that the car owner shows the fashion individual character already.But what the installation and design of the automobile empennage of the overwhelming majority was more paid close attention to is the riding stability that improves vehicle; Automobile empennage (being automotive spoilers) like racing car or sport car back; Mainly be " the unstable phenomenon " that the aerodynamic lift when suppressing galloping causes, that is the styling design of the automobile empennage on the present auto body is from aesthstic shaping style fully and/or suppress lift.Can know that according to aerodynamics the shape of additional device is different, its aerodynamic characteristic is different, and the effect that nature is played is just different.
Yet because the Chinese Urbanization's process is constantly accelerated in recent years, building operation increases, and dust is in the automobile body surface attachment deposition of fast running in the road air; Especially on the bigger road surface of back or the air humidity of raining; The moist dirt mud micelle wheel that rolled is stirring air and is being carried into around the vehicle body, and vitiated air and auto body mutual action finally are deposited on the vehicle body; Especially position, vehicle body back; Cause vehicle body to pollute, influence traveling comfort, aesthetic property by bus also increased simultaneously automobile carwash expense and time loss.
Therefore, the applicant develops a kind of additional device and installation method and automobile that dust pollutes the vehicle body back that suppress, and overcomes above deficiency.
Summary of the invention
Because the above-mentioned deficiency of prior art; The applicant is using vehicle aerodynamics relevant knowledge at first; Former automobile (automobile of automotive accessory promptly is not installed) flow field, vehicle body back is analyzed; As shown in Figure 1, on the vertical plane of symmetry of vehicle body, auto body back air-flow is divided into vehicle body top stream and these two strands of air-flows of body bottom air-flow.Said vehicle body top stream, because of there not being obstacle, basic mobile backward along former direction.The air-flow of said body bottom, because of wheel revolutions, tire tread and groove are stained with moist dirt mud by last volume; Be carried in the air of body bottom, according to the air principle of continuity and karman vortex phenomenon, the whirlpool at vehicle body back is to wash the whirlpool on one; Promptly dirty bottom air receives the adsorption effect of back boundary-layer, on be rolled onto vehicle body after front windshield glass additional, and with the body tail frictional impact; Dirt mud micelle is because of the sticking glutinous effect of electrostatic force and moisture and vehicle body; Be attracted to the vehicle body back, thereby caused the vehicle body back to pollute the A position shown in accompanying drawing 1.To this, adopt back dust blowing device at present on some auto bodys, through direct motor drive, mechanical type strikes off the dirt mud on the front windshield glass of back, to reach cleansing action.Yet the back dust blowing device that this method adopts is the mode of rotation, and hanging brush finish is the circular arc covering of the fan, and the wiper area is limited, and dust removing effects is not good; In addition, because of adopting direct motor drive, also need consumption of power.
The applicant pays creative work; Carried out big quantitative analysis and found just that with test there is close relevance in the structure design of dust pollution vehicle body and automobile empennage; Then develop a kind of on the basis that possesses original automobile empennage function; Can also change the vehicle body air flow state from structure, reduce the deposition of dust in the bodywork surface air-flow of flowing through, play and suppress auto body additional device and the installation method thereof that vehicle body back dust pollutes.
For realizing above-mentioned purpose, the invention provides a kind of additional device that dust pollutes the vehicle body back that suppresses.Comprise baffle and and supporter, said supporter is used to connect said baffle and vehicle body, wherein; Said baffle strip; Cross-sectional plane type of the being triangle of centre portion, said baffle includes three guide faces, is respectively guide face, preceding guide face and back guide face; The said guide face arc length that goes up on the said cross-sectional plane is all less than the arc length of guide face before said with the back guide face; Guide face and last guide face are the matrix face before said, and said back guide face is the convex face, and said supporter is arranged on the preceding guide face.
Preferable, three guide faces of said baffle are that arc transition connects.
Preferable, said supporter is the adjustable length strut bar.
Preferable, said supporter comprises that one is used to regulate the gear & rack structure of said supporter length.
Preferable; Said supporter comprise one connect baffle last supporter, connect the lower support of vehicle body and be used for the said supporter of going up is connected the detachable latch of fixing with lower support; Correspondence is provided with some jacks on said upward supporter and the lower support, and said detachable latch is arranged on the said jack.
Preferable, said strut bar windward side is smooth arc surface.
The present invention also provides a kind of installation method that dust pollutes the additional device at vehicle body back that suppresses: said baffle is installed to front windshield glass and roof boundary line place behind the auto body back through said supporter; The said said roof boundary line of the intersection distance in vertical direction shortest distance that goes up guide face and preceding guide face is 15-40mm; Guide face and vehicle body shortest distance 15-30mm before said.
Preferable, the said said roof boundary line of the intersection distance in vertical direction shortest distance that goes up guide face and said preceding guide face is 24mm; Guide face and vehicle body shortest distance are 24mm before said.
The present invention also provides a kind of the inhibition to use above-mentioned automotive accessory and/or installation method on the automobile that dust pollutes the vehicle body back, and comprising: described automobile interior back is provided with said automotive accessory; Be provided with said automotive accessory according to said installation method on the back frame of said automobile.
Automotive accessory of the present invention changed the auto body back from roof with from the flow regime of two strands of air-flows of automobile bottom.Be specially, be divided into two parts, be close to vehicle body air-flow and upper strata air-flow from the roof air-flow.The said vehicle body air-flow of being close to because of the matrix face guide functions of guide face before the automotive accessory, is compelled to flow downward along the vehicle body back surfaces; Said upper strata air-flow is because of the convex face guide functions of guide face on the automotive accessory, after a bit of distance that upwards flows, by guide face behind the automotive accessory attract, make the oblique motion down of air-flow; As above visible; This moment, the vitiated air that has dust from the automobile bottom moved to the vehicle body back lower part of the body; Run into and be close to vehicle body from the vehicle body top and flow behind the downward air-flow; Two strands of air-flows liquidate, make vitiated air not continue upward movement and change backward motion into, successful then inhibition the dust pollution of vehicle body back.
In sum, automotive accessory of the present invention and installation method thereof are having outstanding effect aspect the dust pollution of inhibition auto body back, and the present invention is simple in structure, and it is convenient to install.
Description of drawings
Fig. 1 for no additional device automobile back air flow state scheme drawing.
Fig. 2 is the automobile back air flow state scheme drawing that this specific embodiment additional device is housed.
Fig. 3 is the additional device perspective view of this specific embodiment.
Fig. 4 is the additional device interlude schematic cross-section of this specific embodiment.
Fig. 5 is the birds-eye view of the additional device of this specific embodiment.
The specific embodiment
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Shown in accompanying drawing 3, this specific embodiment provides a kind of additional device that dust pollutes the vehicle body back that suppresses, and comprises baffle 1 and supporter 2, and supporter 1 is used to connect baffle 1 and vehicle body, and is wherein as shown in Figure 5, baffle 2 strips; As shown in Figure 4; Cross-sectional plane type of the being triangle of centre portion; Baffle 1 includes three guide faces and is respectively guide face 12, preceding guide face 11 and back guide face 13, and all less than the arc length 16 on arc length on the preceding guide face 11 14 and the back guide face 13, preceding guide face 11 is the matrix face with last guide face 12 to last guide face 12 arc length 15 on the cross-sectional plane; Back guide face 13 is the convex face, and supporter 2 is arranged on the preceding guide face 11.
As the further specific embodiment of the present invention, three guide faces of baffle 1 are that arc transition connects.
As the further specific embodiment of the present invention; Supporter 2 is the adjustable length strut bar; As supporter 2 can comprise one be used to regulate the gear & rack structure of said supporter length or comprise one connect baffle last supporter, connect the lower support of vehicle body and be used for the said supporter of going up is connected the detachable latch of fixing with lower support; Correspondence is provided with some jacks on said upward supporter and the lower support, and said detachable latch is arranged on the said jack realizes adjustable length, certain; Can also adopt other modes to realize, the strut bar in the present embodiment also can be a length fixing branch strut in addition.
As the further specific embodiment of the present invention, said strut bar windward side is smooth arc surface.
Present embodiment also provides a kind of above-mentioned inhibition dust to pollute the installation method of the additional device at vehicle body back: baffle 1 is installed to front windshield glass and roof boundary line place behind the auto body back through supporter 2, shown in accompanying drawing 2; Last guide face 12 is 24mm with the said roof boundary line of the intersection distance in vertical direction shortest distance of preceding guide face 11, and certainly, said distance can also be 15 or 40mm, can also be the arbitrary length among the 15-40mm; Guide face and vehicle body shortest distance are 24mm before said, and be certain, and said distance can also be 15 or 30mm, can also be the arbitrary length among the 15-30mm.
Present embodiment also provides a kind of the inhibition to use above-mentioned automotive accessory and/or installation method on the automobile that dust pollutes the vehicle body back, and comprising: described automobile interior back is provided with said automotive accessory; Be provided with said automotive accessory according to said installation method on the back frame of said automobile.
Exemplary, the effect of present embodiment is following:
The inventor utilizes computational fluid mechanics CFD computer simulation technique to carry out flow field analysis:
At first use computational fluid mechanics CFD computer simulation technique, vehicle as shown in Figure 1 has been carried out flow field analysis.It is the speed of a motor vehicle 25 kilometer per hours that boundary condition is set, and entry condition is made as velocity-inlet, and speed is 40m/s; Exit condition is pressure-outlet; Size is a standard atmosphere, and side and top are made as static wall, and the floor is the slippage wall; Speed is the same with inlet, and vehicle body is the zero slip wall.According to aerodynamics continuity equation, the conservation of momentum and conservation energy three big equations, select Realizable k-ε turbulence model for use.Simultaneously, describe and follow the trail of the travel motion of dust particle in the Flow around Automobiles field, describe air flow field, discrete dust particle thing is followed the trail of its path of motion with the Lagrangian method with the Euler method to adopt the DPM method.Because the dust particle particle diameter belongs to irregular distribution, near actual conditions, suppose that grain diameter size conforms time distributes, average-size is 60 μ m, range of sizes divides 5 size group, can obtain particles of different sizes.
Geometric model is carried out finite volume method discrete after, carry out Flow Field Calculation.Before result of calculation was found not use additional device of the present invention, the vehicle body back was easy to polluted by dust.
Adopt same method of calculating, the automobile behind the additional device that uses present embodiment, as shown in Figure 2, in the identical time, vehicle body back contaminated area decreases by 63.17%.
Simultaneously, adopt same method of calculating, calculate using additional device installation method of the present invention, the said roof boundary line of the intersection distance in vertical direction shortest distance values of preferable last guide face and preceding guide face is 24mm; Preferable said preceding guide face and vehicle body shortest distance values 24mm.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can design according to the present invention make many modifications and variation.Like the base portion of baffle according to the invention for realization function of the present invention; Realize function involved in the present invention; Said baffle is characterised in that along overall width direction intermediate host and partly is strip as stated, can also carry out matching or other surface modeling designs arbitrarily with the car body style for two ends.Therefore, all technical personnels in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. one kind is suppressed the additional device that dust pollutes the vehicle body back; Comprise baffle and supporter, said supporter is used to connect said baffle and vehicle body, it is characterized in that: said baffle strip; Cross-sectional plane type of the being triangle of centre portion; Said baffle includes three guide faces and is respectively guide face, preceding guide face and back guide face, and the said guide face arc length that goes up on the said cross-sectional plane is all less than the arc length of guide face before said with the back guide face, said before guide face and last guide face be the matrix face; Said back guide face is the convex face, and said supporter is arranged on the preceding guide face.
2. additional device as claimed in claim 1 is characterized in that: three guide faces of said baffle are that arc transition connects.
3. additional device as claimed in claim 1 is characterized in that: said supporter is the adjustable length strut bar.
4. additional device as claimed in claim 3 is characterized in that: said supporter comprises that one is used to regulate the gear & rack structure of said supporter length.
5. additional device as claimed in claim 3; It is characterized in that: said supporter comprise one connect baffle last supporter, connect the lower support of vehicle body and be used for the said supporter of going up is connected the detachable latch of fixing with lower support; Correspondence is provided with some jacks on said upward supporter and the lower support, and said detachable latch is arranged on the said jack.
6. additional device as claimed in claim 3 is characterized in that: said strut bar windward side is smooth arc surface.
7. pollute the installation method of the additional device at vehicle body back like the described inhibition dust of the said arbitrary claim of claim 1-6, it is characterized in that: said baffle is installed to front windshield glass and roof boundary line place behind the auto body back through said supporter; The said said roof boundary line of the intersection distance in vertical direction shortest distance that goes up guide face and preceding guide face is 15-40mm; Guide face and vehicle body shortest distance 15-30mm before said.
8. installation method as claimed in claim 7 is characterized in that: the said best 24mm of being of the said roof boundary line of intersection distance in vertical direction shortest distance that goes up guide face and said preceding guide face; Guide face and vehicle body shortest distance the best are 24mm before said.
9. a vehicle body back has the automobile that suppresses dust pollution function, and it is characterized in that: the back frame of said automobile is provided with like claim 1 to each said automotive accessory of claim 6.
10. a kind of vehicle body as claimed in claim 9 back has the automobile that suppresses dust pollution function, and it is characterized in that: said automotive accessory is according to each said installation method of claim 8 the auto body back being set like claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338135XA CN102826133A (en) | 2012-09-13 | 2012-09-13 | Additional device inhibiting dust polluting back of automobile body, mounting method thereof and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338135XA CN102826133A (en) | 2012-09-13 | 2012-09-13 | Additional device inhibiting dust polluting back of automobile body, mounting method thereof and automobile |
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| Publication Number | Publication Date |
|---|---|
| CN102826133A true CN102826133A (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210338135XA Pending CN102826133A (en) | 2012-09-13 | 2012-09-13 | Additional device inhibiting dust polluting back of automobile body, mounting method thereof and automobile |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174863A (en) * | 1976-10-30 | 1979-11-20 | Daimler-Benz Aktiengesellschaft | Air guide installation |
| US4674788A (en) * | 1984-02-29 | 1987-06-23 | Nissan Motor Company, Limited | Vehicular air flow control device with variable angle air flow control fin |
| US4707014A (en) * | 1986-11-14 | 1987-11-17 | Riverside International, Inc. | Automotive roof spoiler having retractable, concealable lamps |
| US6712424B2 (en) * | 2002-04-29 | 2004-03-30 | Daniel B. Swain | Hitch receiver mounted spoiler |
| CN1843828A (en) * | 2006-04-28 | 2006-10-11 | 刘小虎 | Compensation tail fin for streamlined sedan car |
| US20060261637A1 (en) * | 2005-05-20 | 2006-11-23 | Garcia Martin L | Vehicle spoiler with spinner mechanism |
| CN202089127U (en) * | 2011-05-31 | 2011-12-28 | 东风汽车有限公司 | Height-adjustable's top spoiler |
| CN202765115U (en) * | 2012-09-13 | 2013-03-06 | 湖南工业大学 | Additional device of automobile body back portion |
-
2012
- 2012-09-13 CN CN201210338135XA patent/CN102826133A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174863A (en) * | 1976-10-30 | 1979-11-20 | Daimler-Benz Aktiengesellschaft | Air guide installation |
| US4674788A (en) * | 1984-02-29 | 1987-06-23 | Nissan Motor Company, Limited | Vehicular air flow control device with variable angle air flow control fin |
| US4707014A (en) * | 1986-11-14 | 1987-11-17 | Riverside International, Inc. | Automotive roof spoiler having retractable, concealable lamps |
| US6712424B2 (en) * | 2002-04-29 | 2004-03-30 | Daniel B. Swain | Hitch receiver mounted spoiler |
| US20060261637A1 (en) * | 2005-05-20 | 2006-11-23 | Garcia Martin L | Vehicle spoiler with spinner mechanism |
| CN1843828A (en) * | 2006-04-28 | 2006-10-11 | 刘小虎 | Compensation tail fin for streamlined sedan car |
| CN202089127U (en) * | 2011-05-31 | 2011-12-28 | 东风汽车有限公司 | Height-adjustable's top spoiler |
| CN202765115U (en) * | 2012-09-13 | 2013-03-06 | 湖南工业大学 | Additional device of automobile body back portion |
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Application publication date: 20121219 |
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| RJ01 | Rejection of invention patent application after publication |