CN209600658U - Car body front lower portion structure - Google Patents
Car body front lower portion structure Download PDFInfo
- Publication number
- CN209600658U CN209600658U CN201920169225.8U CN201920169225U CN209600658U CN 209600658 U CN209600658 U CN 209600658U CN 201920169225 U CN201920169225 U CN 201920169225U CN 209600658 U CN209600658 U CN 209600658U
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- China
- Prior art keywords
- vehicle
- car body
- air
- lower portion
- tyre
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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
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- Body Structure For Vehicles (AREA)
Abstract
The utility model provides a kind of car body front lower portion structure.The car body front lower portion structure has in fender liner (5) and front bumper (7), (5) have the portion that arches upward (5a) of the outer peripheral surface of covering front tyre in fender liner, and the flange portion (5b) extended forwards from the front end in the portion that arches upward (5a), front bumper (7) has in front part of vehicle main part extending along the width of the car (7a), and from two ends of main part (7a) towards vehicle commander direction on rear side of extend to the portion of arching upward (5a) front end until side portion (7b), it is provided in the bottom surface of flange portion (5b), air baffle (10) that is extending along the width of the car in the front of front tyre while extending downward, it is provided in the bottom surface of side portion (7b), the air spoiler (20) extended on vehicle commander direction along the side portion (7b).Based on the structure, the resistance coefficient of vehicle can be effectively reduced.
Description
Technical field
The utility model relates to a kind of car body front lower portion structures.
Background technique
In general, when vehicle driving, since the positions such as face on front side of front tyre are in face of traveling wind, pressure rises, thus front-wheel
The air impedance at the positions such as the face on front side of tire increases.
In addition, when the traveling wind along vehicle body side flowing is removed from the side of front tyre, side to the rear of front tyre
Until region in air reduce, thus low pressure (negative pressure) region expand.In region until the side to rear of present tire
When area of low pressure expands, area of low pressure can be drawn into the traveling wind of the inside flowing of the vehicle width direction of front tyre, that is, can be from wheel
It covers and is sprayed to the outside of vehicle width direction, reduce the internal pressure of wheel cover, increase so as to cause by front body toward the power that rear is drawn.
Thus, in the car body front lower portion structure of the prior art, there are the increasings of the air impedance at the positions such as face on front side of front tyre
When big, front body is increased toward the power that rear is drawn, thus the Cd value (Coefficient of Drag, resistance coefficient) of vehicle
Variation such problems.
Utility model content
In view of the above technical problems, the purpose of the utility model is to provide it is a kind of can adjust vehicle driving when front tyre
Car body front lower portion structure of the air draught in front to make resistance coefficient reduce.
Make technical solution to solve above-mentioned technical problem, the utility model provides a kind of car body front lower portion structure, the vehicle
Body front lower portion structure has in fender liner and front bumper, has the curved of the outer peripheral surface of covering front tyre in the fender liner
Curved arch upward portion and the flange portion that extends forwards from the front end in the portion that arches upward, the front bumper have before vehicle
Portion's main part extending along the width of the car and from two ends of the main part towards vehicle commander direction on rear side of extend to the arch
Side portion until the front end in the portion of rising, it is characterised in that: be provided in the bottom surface of the flange portion, before the front tyre
Air baffle that is square extending along the width of the car while extending downward, is provided with, in vehicle commander in the bottom surface of the side portion
The air spoiler extended on direction along the side portion.
Above-mentioned car body front lower portion structure based on the utility model can make traveling wind to front tyre using air baffle
Vehicle width direction inside flowing, so as to inhibit the air impedance in the face on front side of front tyre to increase.In addition, by leading air
Traveling wind on the outside of flowing plate is flowed along air spoiler, can make the traveling wind do not remove along front tyre side flow,
Area of low pressure in region until capable of inhibiting the side to rear of front tyre as a result, expands, so as to prevent in front tyre
The case where traveling wind of the inside flowing of vehicle width direction is sprayed from wheel cover to the outside of vehicle width direction.
It can inhibit the face on front side of front tyre using air baffle namely based on the car body front lower portion structure of the utility model
Etc. air impedance increase；Using air spoiler, can prevent from causing to go because the area of low pressure of the side of front tyre expands
The case where sailing is sprayed from wheel cover to the outside of vehicle width direction, thus the Cd value of vehicle can be effectively reduced.
In addition, preferably, the air spoiler is configured in the above-mentioned car body front lower portion structure of the utility model,
Rear side closer to vehicle commander direction gets over the outer lateral bend to vehicle width direction, and posterior height of its lower end closer to vehicle commander direction is got over
Low land inclination.Using the structure, the air impedance of the front side in the vehicle commander direction of air spoiler can not only be inhibited to increase, moreover it is possible to make
Traveling wind is along air spoiler close to the side flow of front tyre.
Detailed description of the invention
Fig. 1 is the perspective view for the car body front lower portion structure for schematically showing the embodiments of the present invention (from car body
The perspective view that lower section is seen).
Fig. 2 is the side view for schematically showing above-mentioned car body front lower portion structure.
Fig. 3 is the bottom view (bottom view seen below from car body) for schematically showing above-mentioned car body front lower portion structure.
Fig. 4 is the sky schematically shown using in the case where above-mentioned car body front lower portion structure when vehicle driving around car body
The bottom view (bottom view seen below from car body) of flow of air situation.
Car body week when Fig. 5 is vehicle driving in the case where schematically showing the car body front lower portion structure using the prior art
The bottom view (bottom view seen below from car body) of the air flow condition enclosed.
Specific embodiment
Hereinafter, being illustrated referring to attached drawing to present embodiment, but the utility model is not the record in the embodiment
It is limited.In addition, the size relationship (length, width etc.) in each figure does not reflect size relationship in kind.
Fig. 1 is the perspective view for the car body front lower portion structure of vehicle 1 for schematically indicating present embodiment (below from car body
The perspective view seen), Fig. 2 is the side view for schematically indicating the car body front lower portion structure of vehicle 1, and Fig. 3 is model utility earth's surface
Show the bottom view (bottom view seen below from car body) of the car body front lower portion structure of vehicle 1.The car body front lower portion structure in addition to
Have except vehicle body frame member (not shown), be also equipped with 5, front bumper 7 in bottom cover 2, fender liner shown in FIG. 1 to FIG. 3,
Air baffle 10 and air spoiler 20.
Bottom cover 2 is set between left and right wheel cover 4 (merely illustrating the wheel cover 4 on right side in Fig. 1 etc.), will be equipped with power unit
The downside of the power unit room of the front part of vehicle of (not shown) etc. covers.In addition, the bottom cover 2 constitutes the bottom surface of the front of vehicle 1.
5 for preventing front tyre 3 takes up in the traveling of vehicle 1 water, mud, sand, handstone etc. from directly sputtering in fender liner
On to wheel guard (not shown), front mudguard (not shown) etc..5 have the outer peripheral surface for covering front tyre 3 in fender liner
Bending arches upward portion 5a and the flange that substantially horizontally extends forwards from the front end (lower end of front side) of the portion 5a that arches upward
Portion 5b.Flange portion 5b as shown in Figures 1 and 3, is connected being located further forward at side than front tyre 3 with bottom cover 2.
Front bumper 7 is, for example, the buffer unit for impact load, vibration when absorbing vehicle front collision etc..The preceding guarantor
Dangerous thick stick 7 has, in front end (front part of vehicle) the main part 7a extending along the width of the car of vehicle 1 and from the vehicle of main part 7a
Two ends of wide direction are towards extending to the side in fender liner until the front end of the 5 portion 5a that arches upward on rear side of vehicle commander direction
Edge 7b.Side portion 7b is configured to, as shown in figure 3, closer to the rear side in vehicle commander direction from two ends of main part 7a
More it is bent to the outside bulging of vehicle width direction.
In the following, air baffle 10 and air spoiler 20 are described in detail, but in order to be easy to the utility model
Understand, the car body front lower portion structure of the prior art is illustrated by the situation of traveling wind effect first.
Fig. 5 is the vehicle when driving of vehicle 101 in the case where schematically showing the car body front lower portion structure using the prior art
The bottom view (bottom view seen from the lower section of vehicle 101) of air flow condition around body.In Fig. 5, arrow indicates traveling
Wind (air draught).
In the case where car body front lower portion structure using the prior art, as shown in figure 5, traveling wind W1 ' blows to front tyre 103
Front side face (portion A of Fig. 5) on, traveling wind W2 ' is blown in brake component (portion B of Fig. 5), thus pressure rise, front tyre
The face of 103 front side and the air impedance at brake component increase.
In addition, since the traveling wind W3 ' flowed along vehicle body side is removed from the side of front tyre 103, so front tyre
Air in region (portion C of Fig. 5) until 103 side to rear is reduced, so as to cause the expansion of low pressure (negative pressure) region.
When the portion the C mesolow region of Fig. 5 expands, flowed in the inside (portion D of Fig. 5) of the vehicle width direction of front tyre 103
Traveling wind W4 ' can area of low pressure be pull towards as shown in Figure 5, that is, sprayed from wheel cover 104 towards the outside of vehicle width direction,
So that the internal pressure of wheel cover 104 reduces, increase so as to cause by front body toward the power that rear is drawn.
In this way, in the car body front lower portion structure of the prior art, the face of the front side of present tire 103 and the sky at brake component
When the anti-increase of vapour lock, front body is increased toward the power that rear is drawn, thus Cd value (the Coefficient of of vehicle 101
Drag, resistance coefficient) it is deteriorated.
In this regard, as described above, it is both provided with air baffle 10 in the car body front lower portion structure of present embodiment,
It is provided with air spoiler 20 again.
Air baffle 10 is arranged in the bottom surface of in fender liner 5 flange portion 5b, and the front of front tyre 3 downward
And vehicle width direction extends.
More specifically, as shown in FIG. 1 to 3, air baffle 10 has the mounting plate 11 of approximate trapezoid and from the peace
The approximate rectangular cowling panel 13 that the rear end of loading board 11 extends downward, section are approximate L-shaped.In addition, such as Fig. 3 institute
Show, air baffle 10 is configured to, and the width than front tyre 3 is wider in the vehicle width direction.
Mounting plate 11 is mounted on flange with the substantially aligned state in the rear end of 5 flange portion 5b in its rear end and fender liner
The rear end of the bottom surface of portion 5b.In terms of vehicle commander direction, the cowling panel 13 and front-wheel that are extended downward from the rear end of mounting plate 11
The a part and brake component 6 in the face of the front side of tire 3 are overlapped.In this way, by configuring air baffle 10 before front tyre 3
Side can make a part (traveling wind WA) of traveling wind not contact face and the brake component 6 of 3 front side of front tyre as shown in Figure 1
It is flowed towards the rear in the inside of the vehicle width direction of front tyre 3 on ground.
On the other hand, the bottom surface of the side portion 7b of front bumper 7 is arranged in air spoiler 20, and along side portion 7b
Until extending to cowling panel 13 from front part of vehicle on vehicle commander direction.
More specifically, as shown in FIG. 1 to 3, air spoiler 20 have generally radiused mounting plate 21 and from this
The sidewall paneling 23 that the end in the outside of the vehicle width direction of mounting plate 21 extends downward, section are approximate L-shaped.Sidewall paneling 23
It is configured to, the rear side more lateral bend to outside vehicle width direction closer to vehicle commander direction, and its lower end is behind vehicle commander direction
Side height gets over low land inclination.Therefore, as shown in Fig. 2, in terms of vehicle width direction, sidewall paneling 23 is formed closer to vehicle commander direction
Bigger subtriangular of the length dimension in rear side overall height direction.Specifically, the lower end of sidewall paneling 23 is from side portion 7b's
The rear side that the identical height in bottom surface plays towards vehicle commander direction is gradually lower (height dimension becomes larger), the height dimension of its rear end with it is whole
The height dimension of flowing plate 13 is roughly equal.Sidewall paneling 23 can be inhibited to increase in the air impedance of the front side in vehicle commander direction as a result,.
The rear side that the mounting plate 21 of approximate arc-shaped is installed in closer to vehicle commander direction is got over swollen to the outside of vehicle width direction
The bottom surface of the side portion 7b of curved front bumper 7 out.It is downward from the end in the outside of the vehicle width direction of mounting plate 21 as a result,
The sidewall paneling 23 of Fang Yanshen extends along the side of side portion 7b, the cowling panel in terms of vehicle commander direction, with air baffle 10
13 a part (end on the outside of vehicle width direction) overlapping.In this way, configuring sidewall paneling 23 along side for air spoiler 20
The state that the side of portion 7b extends, can be as shown in Figure 1, makes a part (traveling wind WC) of traveling wind along front tyre 3
Side flow.In addition, in terms of vehicle commander direction, on the outside of the sidewall paneling 23 of air spoiler 20 and the vehicle width direction of cowling panel 13
End overlapping, thus, only some (traveling wind WB) crosses cowling panel 13 and touches front tyre 3 in traveling wind.
Fig. 4 is to schematically show 1 row of vehicle in the case where the car body front lower portion structure using the vehicle 1 of present embodiment
The bottom view (bottom view seen from the lower section of vehicle 1) of air flow condition when sailing around car body.In Fig. 4, arrow is indicated
Traveling wind (air draught).
In the case where car body front lower portion structure using the vehicle 1 of present embodiment, as shown in figure 4, due to there is free conductance
The cowling panel 13 of flowing plate 10, traveling wind W1 flow towards the rear on the inside of the vehicle width direction of front tyre 3, thus, touch front tyre 3
Front side face and brake component 6 traveling wind amount reduce, so as to inhibit front tyre 3 front side face and brake component 6
The air impedance at place increases.In the structure, since traveling wind W1 is blown on air baffle 10, so air baffle 10 itself
Air impedance can be generated, still, in terms of vehicle commander direction, the vehicle width direction of the sidewall paneling 23 and cowling panel 13 of air spoiler 20
The end in outside is overlapped, thus, some in traveling wind (traveling wind W2) will not touch cowling panel 13.Air is led as a result,
Air impedance in flowing plate 10 (portion A of Fig. 4) is less than the front side of the front tyre 103 in the car body front lower portion structure of the prior art
The air impedance generated at face (portion A of Fig. 5) and brake component (portion B of Fig. 5).
In addition, along car body side flow traveling wind W2 due to be along rear end height dimension and cowling panel 13
The roughly equal sidewall paneling 23 of height dimension flows, thus, it is not easy to the pressure of 13 front side of cowling panel by air baffle 10
The influence of power elevated areas (portion A of Fig. 4).It as a result, will not along the traveling wind W2 that the sidewall paneling 23 of air spoiler 20 flows
It is removed in the side of front tyre 3, but close to the side flow of front tyre 3.Thus, it is not easy to there is the side of front tyre 3 extremely
Region mesolow region until rear expands, to be drawn in the traveling wind W1 of the inside flowing of the vehicle width direction of front tyre 3
The phenomenon that entering area of low pressure, being sprayed from wheel cover 4 to the outside of vehicle width direction.
In this way, in the car body front lower portion structure of present embodiment, using air baffle 10,3 front side of front tyre can be inhibited
Face and brake component 6 at air impedance increase；Using air spoiler 20, the area of low pressure of 3 side of front tyre can be inhibited
Expand, so as to prevent outside of the traveling wind W1 from wheel cover 4 to vehicle width direction from spraying, thus, the Cd of vehicle 1 can be effectively reduced
Value.
Claims (2)
1. a kind of car body front lower portion structure, have in fender liner and front bumper, there is covering front-wheel in the fender liner
Forniciform arch upward portion and the flange portion that extends forwards from the front end in the portion that arches upward of the outer peripheral surface of tire, it is described before insurance
Thick stick has after front part of vehicle main part extending along the width of the car and from two ends of the main part towards vehicle commander direction
Side extends to the side portion until the front end in the portion that arches upward, it is characterised in that:
It is provided in the bottom surface of the flange portion, is extended downward simultaneously the front of the front tyre is extending along the width of the car
Air baffle,
It is provided in the bottom surface of the side portion, the air spoiler extended on vehicle commander direction along the side portion.
2. car body front lower portion structure as described in claim 1, it is characterised in that:
The air spoiler is configured to, and the rear side closer to vehicle commander direction gets over the outer lateral bend to vehicle width direction, and under it
The posterior height closer to vehicle commander direction is held to get over low land inclination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169225.8U CN209600658U (en) | 2019-01-30 | 2019-01-30 | Car body front lower portion structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169225.8U CN209600658U (en) | 2019-01-30 | 2019-01-30 | Car body front lower portion structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209600658U true CN209600658U (en) | 2019-11-08 |
Family
ID=68402968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920169225.8U Active CN209600658U (en) | 2019-01-30 | 2019-01-30 | Car body front lower portion structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209600658U (en) |
-
2019
- 2019-01-30 CN CN201920169225.8U patent/CN209600658U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |