CN111216664A

CN111216664A - Front structure of vehicle

Info

Publication number: CN111216664A
Application number: CN201911143358.9A
Authority: CN
Inventors: 中田章博; 柳泽亮; 新井大斗
Original assignee: Mazda Motor Corp
Current assignee: Mazda Motor Corp
Priority date: 2018-11-27
Filing date: 2019-11-20
Publication date: 2020-06-02
Anticipated expiration: 2039-11-20
Also published as: CN111216664B

Abstract

The object of the present invention is to provide a front structure of a vehicle, comprising: the traveling wind is separated from the vehicle body so as not to directly contact the lens surface of the headlight, the separated traveling wind flows toward the hood, and the wind contacting the closed portion of the front grille side portion flows outward in the vehicle width direction and merges with the wind flowing toward the hood, thereby improving aerodynamic performance. Characterized in that the vehicle body comprises a protruding member (50) having a lateral extension portion (53) extending laterally from the vehicle width direction outer end of a front grille (21) toward the lower edge of a headlight (40), and an upper extension portion (54) extending upward from the vehicle width direction outer end toward the space between the front grille and the headlight; the projecting member of the lower edge of the headlight projects forward from the lens surface of the headlight and the front bumper panel below the lens surface, and the projecting amount of the upper extension portion of the projecting member toward the vehicle front side is set to be smaller as it goes upward.

Description

Front structure of vehicle

Technical Field

The present invention relates to a front structure of a vehicle, including: a front bumper fascia; a front grille disposed at the upper center of the front bumper panel and having a traveling wind inlet; and a headlight disposed so that the inner side in the vehicle width direction is adjacent to the front grille and the lower end is adjacent to the front bumper panel.

Background

Conventionally, as a front structure of a vehicle of the above-described example, there is known a structure including a front grille disposed at an upper central portion of a front bumper panel and having a traveling wind introduction port formed therein, and a garnish member (so-called emblem) having a side extension portion extending laterally from an outer end of the front grille in the vehicle width direction toward a lower edge of the headlight, and an upper extension portion extending upward from an outer end of the front grille in the vehicle width direction toward a space between the front grille and the headlight, as disclosed in patent document 1.

In the front part of the vehicle, in order to realize an ideal flow of a vortex without generating air resistance, it is preferable to make the traveling wind flow along the outer surface of the vehicle, but due to the relationship of the design of the vehicle, as in patent document 1 mentioned above, the decorative member is provided between the headlight and the front grille in addition to the lower edge of the headlight, and the decorative member protrudes forward of the vehicle, and at this time, the decorative member (particularly, the upper extension part thereof) becomes a wall surface, and the wind contacting the closing part of the side part of the front grille does not flow toward the headlight side, and the wind pressure at the closing part becomes high, and the aerodynamic performance deteriorates.

Therefore, it is conceivable to cut a part of the upper end of the upper extension portion of the decorative member for improving aerodynamic performance, but aerodynamic performance other than the cut upper end is still deteriorated, and if the cut portion of the upper extension portion of the decorative member is enlarged, the appearance is deteriorated.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2018-52363.

Disclosure of Invention

The problems to be solved by the invention are as follows:

accordingly, an object of the present invention is to provide a front structure of a vehicle, which can separate a traveling wind from a vehicle body so that the traveling wind does not directly contact a lens (lens) surface of a headlight, and the separated traveling wind flows toward a hood, and the wind contacting a closed portion of a side portion of a front grille flows outward in a vehicle width direction and merges with the wind flowing toward the hood, thereby improving aerodynamic performance.

Means for solving the problems:

a front structure of a vehicle according to the present invention is a front structure of a vehicle, including: a front bumper fascia; a front grille disposed at an upper central portion of the front bumper fascia and having a traveling wind inlet formed therein; a head lamp disposed so that the inner side in the vehicle width direction is adjacent to the front grille and the lower end is adjacent to the front bumper panel; and a protruding member having a lateral extension portion extending laterally from a vehicle width direction outer end of the front grille toward a lower edge of the headlight, and an upper extension portion extending upward from the vehicle width direction outer end toward a space between the front grille and the headlight; the front grille has a structure in which the traveling wind inlet is provided at a central portion thereof and side portions of the traveling wind inlet are closed; the projecting member of the lower edge of the headlight projects forward from the lens surface of the headlight and the front bumper panel below the lens surface, and the projecting amount of the upper extension portion of the projecting member toward the vehicle front side is set to be smaller as it goes upward.

According to the above configuration, the traveling wind is separated from the vehicle body by the front end of the projecting member of the headlight lower edge projecting forward from the front bumper panel, and the separated wind flows toward the hood, thereby suppressing the generation of a vortex caused by the traveling wind directly contacting the lens surface of the headlight.

Further, the wind contacting the front grille side portion at the portion closing the traveling wind inlet port flows outward in the vehicle width direction from the upper extension portion of the projecting member due to the projecting amount decreasing structure of the upper extension portion, and can merge with the wind flowing toward the hood, and the wind pressure at the closing portion of the front grille side portion can be suppressed from increasing, and the aerodynamic performance can be improved.

Further, by these respective effects, the Cd value (air resistance coefficient) can be reduced to improve the aerodynamic performance;

in addition, deterioration of aerodynamic performance of the closed portion of the front grill side portion can be suppressed, and the front grill can be designed to be large regardless of the size of the actual opening of the front grill.

In one embodiment of the present invention, an upper end of the upper extension of the protruding member is connected to an upper periphery of a bumper fascia forming an upper frame of the front grille;

according to the structure, uninterrupted continuous frame lines can be formed around the front grille.

In one aspect of the present invention, the top portion of the upper extension portion of the projecting member is formed to be biased toward the front grille side with respect to the center of the upper extension portion in the vehicle width direction, and is formed in a narrow tip end shape that is narrower in the vehicle front direction;

according to the above configuration, the wind energy contacting the closed portion of the front grille side portion is reliably separated from the vehicle body at the tip end of the thin upper extension portion of the projecting member, and the separated wind flows outward in the vehicle width direction and merges with the wind flowing toward the hood.

Further, since the top portion of the upper extension portion is formed to be offset toward the front grille side (i.e., inward in the vehicle width direction) with respect to the center of the upper extension portion in the vehicle width direction, the light distribution of the headlight can be distributed toward the vehicle center side.

In the front structure of a vehicle of the present invention, the front bumper panel is curved from the vehicle front surface toward the vehicle side surface; a lower edge of a lens of the headlight is adjacent to the front bumper panel, and a lens surface is arranged from a vehicle front surface to a vehicle side surface; the projecting member is provided between the headlight and the front bumper panel under the headlight, projects forward of the headlight and is provided from a vehicle front surface to a vehicle side surface, and has a side surface portion formed so as to be inclined rearward and upward or horizontal; the rear end height of the side surface part is positioned above the upper end position of the front wheel cover.

According to the above configuration, since the rear end height of the side surface portion of the projecting member is located above the upper end position of the front wheel house, the wind flowing laterally along the vehicle side after contacting the front bumper panel below the headlight is guided rearward and upward along the lower edge of the side surface portion of the projecting member, and is guided so as to be separated upward from the upper end of the front wheel house;

as a result, the amount of the traveling wind flowing laterally of the vehicle in the lateral direction after contacting the front bumper fascia is reduced, and the aerodynamic performance is improved.

In one aspect of the present invention, the projecting member is inclined upward as it goes from the inside of the headlight in the vehicle width direction to the outside of the headlight in the vehicle width direction as a whole;

according to this configuration, the inclined structure of the projecting member can guide the traveling wind upward from the stage when the traveling wind is heading from the front surface of the vehicle to the side surface of the vehicle, thereby suppressing the traveling wind from flowing into the front wheel house.

In one aspect of the present invention, the projecting member is formed such that an inclination angle of the side surface portion when viewed from the side of the vehicle is larger than an inclination angle of the front surface portion when viewed from the front of the vehicle;

according to the above configuration, the traveling wind can be effectively guided upward by the relatively large inclination angle of the side surface portion in the vicinity of the position where the traveling wind is separated (peeled) from the protruding member, and as a result, the amount of the traveling wind flowing laterally along the vehicle side after contacting the front bumper panel can be further reduced to be caught in the front wheel, and the aerodynamic performance can be improved.

The invention has the following effects:

according to the present invention, the following effects are provided: the traveling wind is separated from the vehicle body so as not to directly contact the lens surface of the headlight, and the separated traveling wind flows toward the hood, and flows outward in the vehicle width direction in contact with the closed portion of the front grille side portion, and merges with the wind flowing toward the hood, thereby improving aerodynamic performance.

Further, according to the present invention, the following effects are obtained: the amount of the running wind flowing along the side of the vehicle in the side direction after contacting with the front bumper panel under the head lamp is reduced, and the aerodynamic performance is improved.

Drawings

Fig. 1 is a perspective view of a front structure of a vehicle according to the present invention, as viewed from the front of the vehicle and outward in the vehicle width direction;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a side view of the left side of the vehicle of FIG. 1;

fig. 4 is an enlarged sectional view of a main portion along line a-a of fig. 2;

fig. 5 is an enlarged sectional view of a main portion along the line B-B of fig. 3;

fig. 6 is a partially enlarged perspective view showing a front structure of the vehicle as viewed from the front and below of the vehicle;

fig. 7 (a) is a sectional view showing an example of a peeled structure of a traveling wind constituted by a protruding member under a headlight, and (b) is a sectional view showing a comparative example of a non-peeled structure of a traveling wind constituted by a protruding member under a headlight;

FIG. 8 is a top view of FIG. 1;

fig. 9 is a perspective view showing a front structure of the vehicle as viewed from the front and below of the vehicle;

fig. 10 (a) is a main portion front view showing an inclination angle of a front surface portion of the projecting member when viewed from the front of the vehicle, and (b) is a main portion side view showing an inclination angle of a side surface portion of the projecting member when viewed from the side of the vehicle;

description of the symbols:

11 front bumper face;

a 19-wheel cover (front wheel cover) (front wheel house);

19a upper end;

21 front grilles (front grills);

24 upper traveling wind introduction ports (traveling wind introduction ports);

40 head lamps (head lamp);

41 outer lenses (lenses);

50 logo (signature) (protruding member);

a 53 side extension part;

53a front surface portion;

53b side surface parts;

53r back end;

54 an upper extension;

54c top;

60 bumper face upper (lap).

Detailed Description

The object is achieved by peeling off traveling wind from a vehicle body so that the traveling wind does not directly contact a lens surface of a headlight, flowing the peeled traveling wind toward a hood, flowing wind contacting a closed portion of a front grille side portion outward in a vehicle width direction, and merging the wind flowing toward the hood, and improving aerodynamic performance, wherein the object is achieved by: a front structure of a vehicle is provided with: a front bumper fascia; a front grille disposed at an upper central portion of the front bumper fascia and having a traveling wind inlet; a head lamp disposed so that the inner side in the vehicle width direction is adjacent to the front grille and the lower end is adjacent to the front bumper panel; and a protruding member having a lateral extension portion extending laterally from a vehicle width direction outer end of the front grille toward a lower edge of the headlight, and an upper extension portion extending upward from the vehicle width direction outer end toward a space between the front grille and the headlight; the front grille has a structure in which the traveling wind inlet is provided at a central portion thereof and side portions of the traveling wind inlet are closed; the projecting member of the lower edge of the headlight projects forward from the lens surface of the headlight and the front bumper panel below the lens surface, and the projecting amount of the upper extension portion of the projecting member toward the vehicle front side is set to be smaller as it goes upward.

In addition, the aerodynamic performance is improved by reducing the amount of the running wind flowing along the side direction of the vehicle from the rear side of the front bumper panel contacting the lower part of the head lamp to be involved in the front wheel, and the aim is realized by the following structure: a front structure of a vehicle is provided with: a front bumper fascia that is curved from a front surface of the vehicle toward a side of the vehicle; a headlight in which a lower edge of the lens is adjacent to the front bumper face and a lens face is arranged from a vehicle front face to a vehicle side face; and a protruding member provided between the headlight and a front bumper face plate below the headlight, and protruding forward of the headlight and the front bumper face plate; the protruding member is provided from the vehicle front surface to the vehicle side surface, and the side surface portion thereof is formed so as to be inclined rearward and upward or horizontal, and the height of the rear end of the side surface portion is located above the upper end position of the front wheel house.

(examples)

An embodiment of the invention is explained in detail based on the following figures;

fig. 1 is a perspective view showing the front structure of a vehicle according to the present invention as viewed from the front of the vehicle and outward in the vehicle width direction, fig. 2 is a front view of fig. 1, fig. 3 is a side view of the left side of the vehicle of fig. 1, fig. 4 is an enlarged cross-sectional view of a main portion along line a-a of fig. 2 (although the rib and the emblem of the front grill are omitted in fig. 4), fig. 5 is an enlarged cross-sectional view of a main portion along line B-B of fig. 3, and fig. 6 is a partially enlarged perspective view showing the front structure of the vehicle as viewed from the front and below of the vehicle.

In addition, in the following embodiments, the front structure on the left side of the vehicle is described, but the front structure on the right side of the vehicle is formed to be bilaterally symmetrical to the front structure on the left side of the vehicle;

as shown in fig. 1 to 3, a front bumper 10 that covers the front of the engine room is provided, and the front bumper 10 is formed in a shape that curves from the front surface of the vehicle toward the side surfaces of the vehicle.

The front bumper 10 includes a front bumper fascia 11 and a bumper portion 12 located below the front bumper fascia 11, and both the front bumper fascia 11 and the bumper portion 12 are formed to curve from the front surface of the vehicle to the side surface of the vehicle.

The front bumper panel 11 has a front surface portion 11a positioned on the front surface of the vehicle and a side surface portion 11b positioned on the side surface of the vehicle, and similarly, the bumper portion 12 has a front surface portion 12a positioned on the front surface of the vehicle and a side surface portion 12b positioned on the side surface of the vehicle.

As shown in fig. 1 to 3, an engine cover 13 is provided to cover an upper portion of the engine room. As shown in fig. 4 and 5, the hood 13 is formed by integrally forming a hood outer panel 14 and a hood inner panel 15 by hemming (hemming) processing, and the hood 13 is formed to be openable and closable with a hood hinge at a rear end portion thereof as a fulcrum.

As shown in fig. 1 to 3, a front fender panel (front fender) 16 that covers a side of the engine room is provided. The front fender panel 16 is a plate member located below the vehicle width direction end of the hood 13 and located rearward of the rear end 11c of the side surface portion 11b of the front bumper panel 11.

As shown in fig. 1 and 3, a front wheel arch (front wheel arch) 17 is formed by both the lower rear end of the side surface portion 11b of the front bumper panel 11 and the lower portion of the front fender panel 16, a wheel cover 19 (specifically, a front wheel cover) for a front wheel 18 is formed along the front wheel arch 17, and an outer fender (over fender) 20 is provided on an outer panel along the front wheel arch 17.

In the present embodiment, the above-described extended fender 20 is divided into a front extended fender 20a on the front bumper face 11 side and a rear extended fender 20b on the front fender face 16 side, and when these

extended fenders

20a and 20b are attached to the vehicle body outer panel, the joint surface 20c thereof is aligned with the rear end 11c of the side face portion 11b of the front bumper face 11 and is formed to be continuous in the vertical direction. In addition to the front-rear divided structure of the above-described extended fender panel 20, a non-divided structure in which the front-side extended fender panel 20a and the rear-side extended fender panel 20b are integrally formed may be employed.

As shown in fig. 1 and 2, a front grille 21 having a laterally wide shape is disposed at an upper portion of the front surface portion 11a of the front bumper panel 11 in the vehicle width direction center. The front grille 21 is formed with a lattice-shaped portion by combining a plurality of lateral ribs 22 extending in the vehicle width direction and a plurality of vertical ribs 23 extending in the vertical direction, and an upper traveling wind inlet 24 (so-called opening portion for introducing outside air) is formed between the lateral ribs 22 and the vertical ribs 23 (i.e., a space portion of the lattice-shaped portion).

A heat exchanger (not shown) such as a radiator is disposed in the engine compartment, the upper traveling wind inlet 24 is opened at a length in the vehicle width direction substantially corresponding to the full width in the vehicle width direction when viewed from the vehicle front side of the heat exchanger (particularly, the radiator), a blocking portion 26 is formed by a blocking member 25 formed integrally with the front grille 21 at a side portion in the vehicle width direction which is a portion where the heat exchanger is not present when viewed from the vehicle front side of the front grille 21, and the blocking portion 26 is configured to prevent excessive cooling of the engine and to suppress generation of eddy currents in the engine compartment. A vehicle emblem 27 is attached to the center upper portion of the front grille 21 in the vehicle width direction;

that is, the front grille 21 is provided with an upper traveling wind introduction port 24 at a central portion thereof, and side portions of the upper traveling wind introduction port 24 are closed by the closing portion 26.

As shown in fig. 1 and 2, a lower traveling wind inlet port 29 (an opening portion for introducing outside air) surrounded by a laterally wide annular frame portion 28 is formed at an upper portion of a center in the vehicle width direction of a front surface portion 12a of a bumper portion 12 of a lower portion of a front bumper panel 11, a plurality of vertical ribs 30 extending in the vertical direction are provided between upper and lower frame portions 28 of the lower traveling wind inlet port 29, and a vehicle width direction side portion, which is a portion in the engine room where no heat exchanger is present, is covered by a cover portion 31 integral with or separate from the bumper portion 12 as viewed from the vehicle front side of the lower traveling wind inlet port 29, and the cover portion 31 is configured to prevent excessive cooling of the engine and to suppress generation of eddy currents in the engine room. A license plate 32 (the same as the license plate) is attached to the center in the vehicle width direction of the lower traveling wind inlet 29;

on the other hand, a headlight 40 as a headlamp is provided at an outer side of the front grille 21 in the vehicle width direction and at an upper portion of the front bumper panel 11.

As shown in fig. 4 and 5, the headlight 40 includes an outer lens 41 and a lamp housing 42, and as shown in fig. 1 to 3, the outer lens 41 of the headlight 40 is disposed so that the vehicle width direction inner side thereof is adjacent to the front grille 21, the lower end thereof is adjacent to the front bumper panel 11, and the upper end thereof is adjacent to a bumper panel upper periphery 60 described later. Specifically, the lower edge of the outer lens 41 and the front bumper fascia 11 are arranged such that the outer surface of the outer lens 41, which is a lens surface, extends from the vehicle front surface to the vehicle side surface. That is, the outer lens 41 includes a front surface portion 41a whose outer surface is positioned on the vehicle front surface side and a side surface portion 41b whose outer surface is positioned on the vehicle side surface side.

As shown in fig. 1 and 2, a logo 50 as a protruding member is provided between the front bumper face 11 and the front grille 21. In the present embodiment, the emblem 50 as the protruding member functions as a decorative member for improving the design of the front structure of the vehicle. That is, the protruding member of the present embodiment corresponds to a decorative member;

the emblem 50 includes a lower edge portion 51, side edge portions 52, side extending portions 53, and upper extending portions 54, wherein the lower edge portion 51 is formed to extend in the vehicle width direction between a lower edge of the front grille 21 extending in the vehicle width direction and the front surface portion 11a of the front bumper panel 11; the side wall portion 52 extends obliquely upward and outward in the vehicle width direction from the vehicle width direction end portion of the lower side portion 51 between the vehicle width direction side edge of the front grille 21 and the front surface portion 11a of the front bumper panel 11; the side extension portion 53 extends outward in the vehicle width direction from the upper end of the side wall portion 52 corresponding to the vehicle width direction outer end of the front grille 21 toward a space between the upper end of the front bumper panel 11 and the lower edge of the headlight 40; the upper extension portion 54 extends upward from the upper end of the side wall portion 52 between the vehicle width direction outer side upper portion of the front grille 21 and the vehicle width direction inner end portion of the headlight 40.

As shown in fig. 1, 2, 3, and 6, the side extension portion 53 of the emblem 50 is provided from the vehicle front surface to the vehicle side surface, and the side extension portion 53 has a front surface portion 53a positioned between the front surface portion 11a of the front bumper panel 11 and the front surface portion 40a of the headlight 40, and a side surface portion 53b positioned between the side surface portion 11b of the front bumper panel 11 and the side surface portion 40b of the headlight 40.

As shown in the sectional view of fig. 4, the front surface 53a of the side extension 53 of the emblem 50, which is a projecting member on the lower edge of the headlight 40, projects more forward in the vehicle than the lens surface of the outer lens 41 of the headlight 40 (see the front surface side outer surface of the outer lens 41) and the bumper face surface below (see the front surface side outer surface of the front surface 11a of the front bumper face 11).

As shown in the same drawing, the front surface portion 53a of the side extension portion 53 has an upper surface portion 53c and a lower surface portion 53d, the upper surface portion 53c and the lower surface portion 53d are formed in a tapered shape toward the front tip end, and a tip end acute portion 53e is formed in which the forming angle of both the surface portions is set to 79 to 83 degrees. The numerical value of the angle is an example, and is not limited to this.

As shown in fig. 4 and 5, rear extension portions 55 are provided between the rear end of the front surface portion 53a of the side extension portion 53 from the vehicle front surface to the vehicle side surface and the outer lens 41 (see fig. 4), and between the vehicle width direction inner end of the side surface portion 53b and the outer lens 41 (see fig. 5);

as shown in fig. 1, 2, and 3, a bumper fascia upper periphery 60 forming an upper frame of the front grille 21 is provided. The bumper fascia upper periphery 60 can be formed from a synthetic resin.

The bumper fascia upper periphery 60 is integrally formed with a front surface portion 60a extending in the vehicle width direction along the upper edge of the front grille 21, and a side surface portion 60b extending from the vehicle width direction end of the front surface portion 60a to the vehicle side surface along the upper edge of the outer lens 41 of the headlight 40.

As shown in fig. 4, the bumper face upper periphery 60 is integrally formed with an upper surface portion 60c and a lower surface portion 60d, so that the upper surface portion 60c is inclined rearward and upward from the front end to the rear end thereof so as to continue with the inclined shape of the engine hood 13 that is low in the front and high in the rear, and the lower surface portion 60d adjacent to the front surface portion 41a of the outer lens 41 of the headlight 40 is formed in a substantially horizontal shape;

as shown in fig. 3, the rear end 60e of the side surface portion 60b of the bumper fascia upper periphery 60 is aligned with the rear end 11c of the side surface portion 11b of the front bumper fascia 11 and is formed to be continuous in the vertical direction;

that is, the rear end 60e of the bumper fascia upper periphery 60, the rear end 11c of the front bumper fascia 11, and the joining surface 20c of the

respective fender extensions

20a, 20b are formed to be continuous in the vertical direction.

As shown in the cross-sectional view of the location where the headlight 40 is disposed in fig. 4, the front end portion 60f of the bumper panel upper periphery 60 protrudes toward the vehicle front side from the lens surface of the outer lens 41 of the headlight 40 (see the front surface side outer surface of the outer lens 41), and the front end pointed portion 53e of the side extension portion 53 of the emblem 50 protrudes toward the vehicle front side with respect to the front end portion 60f at the location where the headlight 40 is disposed. In other words, the lens surface of the outer lens 41 of the headlight 40 is disposed at a deep position behind the vehicle with respect to the front end portion 60f of the bumper fascia upper periphery 60 and the front end pointed portion 53e of the side extension portion 53 of the emblem 50.

Fig. 7 (a) is a simplified diagram showing the main part of fig. 4, and fig. 7 (a) is a cross-sectional view showing an example of a peeled structure of the traveling wind constituted by the emblem 50 under the headlight 40, and fig. 7 (b) is a cross-sectional view showing a comparative example of a non-peeled structure of the traveling wind constituted by the emblem 50 under the headlight 40. For convenience of illustration, fig. 7 (a) and 7 (b) are denoted by the same reference numerals.

In the example shown in fig. 7 (a), the distal pointed portion 53e is provided in which the angle formed by the upper surface portion 53c and the lower surface portion 53d is set to 79 to 83 degrees, but in the comparative example shown in fig. 7 (b), the distal pointed portion 53f is provided in which the distal end of the upper surface portion 53c and the distal end of the lower surface portion 53d are connected by a curved surface portion having a curved shape.

In the comparative example shown in fig. 7 (b), the non-sharp portion 53f protrudes forward from the bumper face surface on the front surface portion 11a of the bumper face 11, and the tip end thereof is a curved portion having a curved shape, so that the traveling wind e11 flows rearward along the upper surface portion 53c of the side extension portion 53 of the emblem 50 and the rear extension portion 55 rearward thereof (see the traveling wind e 12) without being separated from the vehicle body by the non-sharp portion 53f, and the traveling wind e12 directly contacts the outer lens 41 of the headlight 40, thereby generating a large vortex.

In contrast, in the embodiment shown in fig. 7 (a), the traveling wind e1 is separated from the vehicle body by the aforementioned distal end acute-pointed portion 53e, and the separated traveling wind e2 flows toward the engine hood 13 through the upper surface portion 60c of the bumper fascia upper periphery 60, whereby the generation of a vortex caused by the traveling wind e2 directly contacting the lens surface (the outer surface of the outer lens 41) of the headlight 40 can be suppressed. In the embodiment shown in fig. 7 (a), although the vortex e3 is formed on the immediately downstream side of the leading edge sharp part 53e as shown in the same drawing, this vortex e3 is sufficiently small compared to the vortex caused by the traveling wind e12 directly contacting the lens surface of the headlight 40 shown in fig. 7 (b).

As shown in fig. 2, the upper extension portion 54 of the emblem 50 as the protruding member includes an inner wall 54a located on the inside in the vehicle width direction and an outer wall 54b located on the outside in the vehicle width direction. As shown in fig. 4 and 6, the amount of projection of the upper extension portion 54 toward the vehicle front is set to decrease upward. That is, the amount of projection of the upper extension portion 54 toward the vehicle front side is formed to be large at the lower portion thereof and gradually becomes smaller as it goes upward.

Further, a ridge portion x1, which is a separation portion, is formed at the tip end portion of the upper extension portion 54, and causes the traveling wind contacting the blocking portion 26 to flow in the direction of the traveling wind e2 flowing on the engine cover 13 shown in fig. 6. The ridge line portion x1 is formed at a portion where the inner wall 54a and the outer wall 54b intersect on the vehicle front side, and the ridge line portion x1 is formed at the front end portion thereof along the longitudinal direction (vertical direction) of the upper extension portion 54.

As a result, as shown in fig. 6, the wind that contacts the side portion of the front grille 21 at the portion where the upper traveling wind introduction port 24 is closed by the closing portion 26 flows outward in the vehicle width direction from the upper extension portion 54 (see the traveling wind e 4) by the decreasing amount structure of the projection amount of the upper extension portion 54 of the emblem 50, and the traveling wind e4 merges with the traveling wind e2 that flows upward toward the hood 13, thereby suppressing the increase in the wind pressure at the closed portion of the side portion of the front grille 21 and improving the aerodynamic performance.

As shown in fig. 7 (a), the following structure is provided: the traveling wind e1 is separated from the vehicle body by the front end sharp portion 53e, and the separated traveling wind e2 flows toward the engine hood 13, thereby suppressing the generation of a vortex caused by directly contacting the lens surface of the headlight 40, and suppressing the wind pressure of the closing portion 26 at the side portion of the front grille 21 from increasing, so that the Cd value (air resistance coefficient) is reduced by these effects, the aerodynamic performance is improved, the aerodynamic performance deterioration at the closing portion at the side portion of the front grille 21 is suppressed, and the front grille design is set to be large regardless of the size of the actual opening of the front grille 21.

As shown in fig. 1, the upper end of the upper extension 54 of the emblem 50 is connected to a lower surface portion 60d of a bumper fascia upper periphery 60 forming an upper frame of the front grille 21. Thus, a continuous frame line is formed around the front grille 21 without interruption, thereby ensuring design in front view of the vehicle.

The ridge line portion x1 of the upper extension portion 54 forms the ceiling portion 54c of the upper extension portion 54 of the emblem 50, and therefore the ceiling portion 54c is formed to be offset toward the front grille 21 side, i.e., inward in the vehicle width direction, with respect to the center in the vehicle width direction of the upper extension portion 54 (broken line in fig. 6), and the upper extension portion 54 is formed to have a narrow tip end in the vehicle front direction (see fig. 1, 2, and 6).

Accordingly, the wind contacting the closing portion 26 on the side of the front grille 21 is reliably separated from the vehicle body by the narrow top portion 54c at the tip end of the upper extension portion of the emblem 50, and the separated traveling wind e4 flows outward in the vehicle width direction and merges with the traveling wind e2 flowing upward toward the hood 13. The top portion 54c of the upper extension portion 54 is formed to be offset toward the front grille 21 with respect to the center in the vehicle width direction, and is configured to distribute light toward the vehicle center side with respect to the light distribution line of the headlight 40;

IN the drawings, arrow F indicates the vehicle front, arrow R indicates the vehicle rear, arrow IN indicates the vehicle width direction inward, arrow OUT indicates the vehicle width direction outward, and arrow UP indicates the vehicle upper.

In the emblem 50 as the projecting member, the side extending portion 53 is provided from the vehicle front surface to the vehicle side surface as shown in fig. 1 and 8, the side surface portion 53b of the side extending portion 53 is inclined upward in the rear direction (inclined in a low front-to-high rear direction) as shown in the side view of fig. 3, and the height of the rear end 53r of the side surface portion 53b is located above the position of the upper end 19a of the wheel house 19 by the distance L.

As described above, by positioning the height of the rear end 53r of the side surface portion 53b of the lateral extension portion 53 of the emblem 50 above the position of the upper end 19a of the wheel house 19, the wind (see the traveling wind e3 indicated by the thick line arrow in fig. 3) flowing laterally in the vehicle direction after coming into contact with the front bumper panel 11 below the headlight 40 is guided rearward and upward in the vehicle along the lower edge of the side surface portion 53b of the emblem 50, and is guided so that the traveling wind e3 is separated upward from the upper end 19a of the wheel house 19. As a result, the amount of the traveling wind e3 that is caught by the front wheel 18 is reduced, and aerodynamic performance is improved.

As shown in fig. 1, 2, and 3, the side extension 53 of the emblem 50 as a projecting member is inclined upward as it goes from the inside of the headlight 40 in the vehicle width direction to the outside in the vehicle width direction as a whole. That is, the side extension portion 53 is formed as follows: the inclined structure gradually inclines upward as the vehicle travels from the vehicle width direction inner side of the front surface portion 41a of the outer lens 41 of the headlight 40 to the vehicle width direction outer side of the side surface portion 41b, and the traveling wind is guided upward at a stage from the vehicle front surface (see the front surface portion 11a of the front bumper panel 11) toward the vehicle side surface (the side surface portion 11b of the front bumper panel 11), thereby suppressing the traveling wind from flowing into the wheel house 19.

Fig. 10 (a) is a main part front view showing the inclination angle of the front surface part 53a when the protruding member (emblem 50) is viewed from the front of the vehicle, and fig. 10 (b) is a main part side view showing the inclination angle of the side surface part 53b when the protruding member (emblem 50) is viewed from the side of the vehicle.

As shown in fig. 10 (a) and (b), the side extension portion 53 of the emblem 50 serving as the projecting member is formed such that the inclination angle θ 2 (see fig. 10 (b)) of the side surface portion 53b in the vehicle side view is larger than the inclination angle θ 1 of the front surface portion 53a in the vehicle front view.

In this embodiment, the above-described relational expression of the inclination angle θ 1 set to 12 degrees, the inclination angle θ 2 set to 19 degrees, and θ 1 < θ 2 holds, but the numerical value of the illustrated angle is an example and is not limited to this numerical value.

By adopting a structure in which the relational expression θ 1 < θ 2 is satisfied, the traveling wind is effectively guided upward by the relatively large inclination angle θ 2 of the side surface portion 53b in the vicinity of the departure of the traveling wind from the emblem 50, and as a result, the amount of the traveling wind e3 (see fig. 3) flowing laterally along the vehicle side after contacting the front bumper panel 11 is further reduced to be caught in the front wheel 18, thereby improving aerodynamic performance.

In the figure, 34 denotes a under cover (under cover) for rectifying the underfloor traveling wind, and 35 denotes a tire deflector (tire deflector) attached to the lower surface of the vehicle body in front of the front wheel 18. IN the drawings, arrow F indicates the vehicle front, arrow R indicates the vehicle rear, arrow IN indicates the vehicle width direction inward, arrow OUT indicates the vehicle width direction outward, and arrow UP indicates the vehicle upper.

The vehicle front structure of the above embodiment is a vehicle front structure, and includes: a front bumper face plate 11; a front grille 21 disposed at a central upper portion of the front bumper panel 11 and having a traveling wind inlet (see an upper traveling wind inlet 24); a headlight 40 disposed so as to be adjacent to the front grille 21 and the front bumper panel 11 at the inner side in the vehicle width direction, respectively; and a projecting member (refer to the emblem 50) having a lateral extending portion 53 extending laterally from the vehicle width direction outer end of the front grille 21 toward the lower edge of the headlight 40, and an upper extending portion 54 extending upward from the vehicle width direction outer end toward a space between the front grille 21 and the headlight 40; the front grille 21 has a structure in which the traveling wind introduction port (upper traveling wind introduction port 24) is provided at a central portion thereof, and side portions of the traveling wind introduction port (upper traveling wind introduction port 24) are closed; the projecting member (emblem 50) on the lower edge of the headlight 40 projects forward from the lens surface (see the outer surface of the outer lens 41) of the headlight 40 and the bumper face surface (see the outer surface of the front surface portion 11a of the front bumper face 11) therebelow, and the projecting amount of the upper extension portion 54 of the projecting member (emblem 50) toward the vehicle front side is set to be smaller as it goes upward (see fig. 1, 4, and 6).

According to this configuration, the traveling wind can be separated from the vehicle body by the tip of the projecting member (refer to the lateral extension 53 of the emblem 50) of the lower edge of the headlight 40 projecting forward from the bumper face surface, and the separated wind (traveling wind e 2) flows toward the engine cover 13, thereby suppressing the generation of a vortex caused by the traveling wind e2 directly contacting the lens surface of the headlight 40.

Furthermore, the wind that contacts the portion (see the closing portion 26) that closes the traveling wind introduction port (upper traveling wind introduction port 24) on the side of the front grille 21 can flow outward in the vehicle width direction from the upper extension portion 54 (see the traveling wind e 4) by the decreasing amount of the projection of the upper extension portion 54 of the projecting member (emblem 50) and join the wind (traveling wind e 2) that flows upward toward the engine hood 13, and the wind pressure at the closed portion (closing portion 26) on the side of the front grille 21 can be suppressed from increasing, and the aerodynamic performance can be improved;

further, these effects can reduce the Cd value (air efficiency coefficient) and improve aerodynamic performance.

Further, deterioration of aerodynamic performance of the closed portion at the side of the front grill 21 can be suppressed, and the front grill can be designed to be large regardless of the size of the actual opening of the front grill 21.

In one embodiment of the present invention, the upper end of the upper extension 54 of the protruding member (emblem 50) is connected to a bumper fascia upper periphery 60 forming an upper frame of the front grille 21 (see fig. 1);

according to this structure, uninterrupted continuous wire can be formed around the front grill 21.

In addition, in an embodiment of the present invention, the top portion 54c of the upper extension portion 54 of the projecting member (emblem 50) is formed to be offset toward the front grille 21 with respect to the center of the upper extension portion 54 in the vehicle width direction, and is formed in a narrow tip end shape that is narrower in the vehicle front direction;

according to this configuration, the wind energy that contacts the closed portion (the closed portion 26) on the side of the front grille 21 is reliably separated by the narrow top portion 54c of the distal end of the upper extension portion 54 of the projecting member (the emblem 50), and the separated wind (the traveling wind e 4) flows outward in the vehicle width direction and joins the wind (the traveling wind e 2) flowing upward toward the hood 13 (see fig. 6).

Since the top portion 54c of the upper extension portion 54 is formed to be offset toward the front grille 21 side (i.e., inward in the vehicle width direction) with respect to the center of the upper extension portion 54 in the vehicle width direction, the light distribution of the headlight 40 can be distributed toward the vehicle center side.

The vehicle front structure according to the above embodiment is a vehicle front structure, and includes: a front bumper fascia 11 that is curved from the vehicle front surface toward the vehicle side; a headlight 40 in which the lower edge of a lens (see the outer lens 41) is adjacent to the front bumper face 11 and the lens surface (see the outer surface of the outer lens 41) is arranged from the front surface of the vehicle to the side surface of the vehicle; and a protruding member (refer to the emblem 50) provided between the headlight 40 and the front bumper panel 11 below the headlight 40 and protruding forward of the vehicle from both of them; the projecting member (refer to the emblem 50, in particular, the side extension portion 53 thereof) is provided from the vehicle front surface to the vehicle side surface, and the rear side of the side surface portion 53b is inclined upward, and the height of the rear end 53r of the side surface portion 53b is located above the position of the upper end 19a of the wheel house 19 (see fig. 1 to 4).

According to this configuration, since the height of the rear end 53r of the side surface portion 53b of the projecting member (refer to the emblem 50, particularly the side extension portion 53 thereof) is located above the position of the upper end 19a of the wheel house 19, the wind (refer to the traveling wind e 3) flowing laterally in the vehicle after contacting the front bumper panel 11 below the headlight 40 is guided rearward of the vehicle along the lower edge of the side surface portion 53b of the projecting member (refer to the side extension portion 53 of the emblem 50) and guided so as to be separated upward from the upper end 19a of the wheel house 19;

as a result, the amount of the traveling wind e3 flowing laterally along the vehicle side after contacting the front bumper fascia 11 and being caught on the front wheel 18 can be reduced, and the aerodynamic performance can be improved.

In the illustrated embodiment, the rear side surface portion 53b is inclined upward, but the side surface portion 53b may be formed horizontally or substantially horizontally instead of the rear side surface portion 53b inclined upward as long as the height of the rear end 53r of the side surface portion 53b is located above the position of the upper end 19a of the wheel house 19.

In an embodiment of the present invention, the projecting member (see the emblem 50, and particularly the lateral extension 53 thereof) is inclined upward as it goes from the inside of the headlight 40 in the vehicle width direction toward the outside in the vehicle width direction as a whole (see fig. 1 and 2).

According to this configuration, the inclined structure of the projecting member (the side extension portion 53 of the emblem 50) can guide the traveling wind upward from the stage when the traveling wind is heading from the front surface of the vehicle to the side surface of the vehicle, and suppress the flow of the traveling wind e3 into the wheel house 19.

In one embodiment of the present invention, the projecting member (see the lateral extension portion 53 of the emblem 50) is formed such that the inclination angle θ 2 (see fig. 10 (b)) of the side surface portion 53b in the vehicle side view is larger than the inclination angle θ 1 (see fig. 10 (a)) of the front surface portion 53a in the vehicle front view (see fig. 10).

According to this configuration, the traveling wind e3 can be effectively guided upward by the relatively large inclination angle θ 2 of the side surface portion 53b immediately before the projecting member (emblem 50, particularly the side extension portion 53 thereof) is detached (peeled off), and as a result, the amount of the traveling wind e3 flowing laterally in the vehicle after contacting the front bumper panel 11 and then flowing laterally can be further reduced to be caught on the front wheel 18, thereby improving aerodynamic performance.

In the case where the configuration of the present invention corresponds to the above-described embodiment, the traveling wind inlet of the present invention corresponds to the upper traveling wind inlet 24 of the embodiment, and hereinafter, similarly, the protruding member corresponds to the emblem 50.

The lens of the present invention corresponds to the outer lens 41 of the embodiment, the lens surface corresponds to the outer surface of the outer lens 41, and the front wheel cover corresponds to the wheel cover 19.

Industrial applicability:

as described above, the present invention is useful for a front structure of a vehicle including: a front bumper fascia; a front grille disposed at the upper center of the front bumper panel and having a traveling wind inlet; and a headlight disposed so that the inner side in the vehicle width direction is adjacent to the front grille and the lower end is adjacent to the front bumper panel.

Claims

1. A front structure of a vehicle, characterized in that,

is a front structure of a vehicle,

the disclosed device is provided with:

a front bumper fascia;

a front grille disposed at an upper central portion of the front bumper fascia and having a traveling wind inlet formed therein;

a head lamp disposed so that the inner side in the vehicle width direction is adjacent to the front grille and the lower end is adjacent to the front bumper panel; and

a protruding member having a side extension portion extending laterally from a vehicle width direction outer end of the front grille toward a lower edge of the headlight, and an upper extension portion extending upward from the vehicle width direction outer end toward a space between the front grille and the headlight;

the front grille has a structure in which the traveling wind inlet is provided at a central portion thereof and side portions of the traveling wind inlet are closed;

the projecting member of the lower edge of the headlight projects forward from the lens surface of the headlight and the front bumper panel below the lens surface, and the projecting amount of the upper extension portion of the projecting member toward the vehicle front side is set to be smaller as it goes upward.

2. The front structure of a vehicle according to claim 1,

the upper end of the upper extension of the protruding member is connected to the upper periphery of a bumper fascia forming the upper frame of the front grille.

3. The front structure of the vehicle according to claim 1 or 2,

the top of the upper extension portion of the projecting member is formed to be offset toward the front grille side with respect to the center of the upper extension portion in the vehicle width direction, and is formed to have a narrow tip end shape that is narrower in the vehicle front direction.

4. The front structure of a vehicle according to claim 1,

the front bumper fascia is curved from a front surface of the vehicle to a side surface of the vehicle;

a lower edge of a lens of the headlight is adjacent to the front bumper panel, and a lens surface is arranged from a vehicle front surface to a vehicle side surface;

the projecting member is provided between the headlight and the front bumper panel under the headlight, projects forward of the headlight and is provided from a vehicle front surface to a vehicle side surface, and has a side surface portion formed so as to be inclined rearward and upward or horizontal;

the rear end height of the side surface part is positioned above the upper end position of the front wheel cover.

5. The front structure of the vehicle according to claim 4,

the projecting member is inclined upward as it goes from the inside of the headlight in the vehicle width direction to the outside of the headlight in the vehicle width direction.

6. The front structure of a vehicle according to claim 5,

the projecting member is formed such that an inclination angle of the side surface portion when viewed from the side of the vehicle is larger than an inclination angle of the front surface portion when viewed from the front of the vehicle.