JPH0481321A - Outside air leading structure for automobile - Google Patents

Abstract

PURPOSE:To lead the traveling wind into a car room side smoothly by guiding the traveling wind flowing backward on a bon-net of an automobile from a traveling wind guide part provided in the bon-net to a guide member side, and making the traveling wind to collide with a longitudinal wall part to deflect it to an outside air lead-in port side positioned in the lower. CONSTITUTION:Car body of an automobile is designed so that surface lines of a bon-net 1 and a front window 2 are inclined at nearly same angle with consideration of aerodynamics characteristic and the appearance of the car body. In this case, an outside air guide part 3 is formed in a rear end 1b of the bon-net 1 so that as the guide part 3 comes closer to the rear end side, it is inclined deeper in order from the surface 1a of the bon-net. An outside air lead-in port 6 is formed at a position in a garnish corresponding to just under the end of the outside air guide part 3, and under the outside air lead-in port 6, a plenum 9 comprising a fan 12 is fitted to a cowl upper panel 7 extending from a cowl box 8 to the downward. Furthermore, a guide member 4 is located at a position in the outside air lead-in port 6 closer to the rear of the car body so as to be opposite to the outside air guide part 3, and a longitudinal wall part 4a thereof is faced to a rear end 3a.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to an outside air introduction structure for an automobile.

(Prior Art) In automobiles, it is necessary to introduce outside air for air conditioning into the passenger compartment.
As disclosed in Publication No. 715, the running wind is introduced into the passenger compartment as outside air for air conditioning at the intersection of the surface line of the bonnet located at the front of the vehicle body and the surface line of the front window located behind it. The outside air inlet is opened upward to allow the wind to flow backward along the bonnet surface line, and the bonnet rises at a relatively large angle of intersection with the bonnet, acting as a kind of vertical wall against the wind. The air is deflected downward by hitting the existing front window and introduced into the passenger compartment through the outside air inlet.

(Problem to be Solved by the Invention) Incidentally, in recent years in automobiles, from the viewpoint of improving aerodynamic characteristics or aesthetics, the surface line of the bonnet and the surface line of the front window are made to have approximately the same slope so that they are continuous with each other. There is a tendency for bodies to be designed to form a single curved surface.

However, as the intersection angle between the bonnet surface line and the front windshield surface line becomes smaller, the aerodynamic characteristics and appearance of the vehicle improve;
On the other hand, the front windshield gradually ceases to function as a vertical wall for deflecting the driving wind, and in some cases, the outside air intake port acts as a sucker for the driving wind that flows linearly from the bonnet side to the front window side. As a result, a new problem arises in that it becomes difficult to introduce running wind from the outside air intake port.

Therefore, in the present invention, in a car in which an outside air inlet is provided at the intersection of the bonnet surface line and the front window surface line, the conflicting demands of improving the aerodynamic characteristics and appearance and ensuring the ability to introduce outside air into the passenger compartment are met. This was done in an attempt to propose an outside air introduction structure for automobiles that could solve the following problems at the same time.

(Means for Solving the Problem) In the present invention, as a specific means for solving the problem, the surface line of the bonnet located at the front of the vehicle body and the surface line of the front window located immediately behind the bonnet. have substantially the same inclination angle, and an outside air inlet for introducing outside air into the passenger compartment is formed at a position below the intersection, and the bonnet has substantially the same inclination angle as the outside air inlet for introducing outside air into the passenger compartment. A traveling wind guide section is formed to guide the outside air in the vicinity of the outside air inlet, and a traveling wind guide section protrudes above the traveling wind guide section at a position facing the rear end of the vehicle body longitudinal direction of the traveling wind guide section. The present invention is characterized in that a guide member having a vertical wall portion configured to deflect the traveling wind flowing through the vehicle toward the outside air introduction port is disposed.

(Function) Since the present invention has such a configuration, the running wind flowing backward along the bonnet as the automobile runs is guided from the running wind guide provided on the bonnet to the guide member side. By colliding with the vertical wall of the guide member, the air is deflected toward the outside air inlet located below, and is smoothly introduced into the passenger compartment through the outside air inlet.

(Effects of the Invention) Therefore, according to the outside air introduction structure for an automobile of the present invention, the outside wind is deflected toward the outside air introduction port by the guide member disposed near the intersection of the bonnet surface line and the front window surface line. Since it is installed inside the cabin, even if the car body is designed so that the bonnet surface line and the front window surface line have approximately the same angle of inclination, this will not affect the car's performance. The outside air is reliably introduced into the cabin, and as a result, the bonnet surface line and the front window surface line are made almost straight, ensuring the aerodynamic characteristics and appearance of the car body, and the outside air being introduced into the cabin side. This has the effect of making it possible to reconcile the conflicting demands of improved performance.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

First Embodiment FIG. 1 shows the front part of an automobile equipped with an outside air introduction structure according to the first embodiment of the present invention. . In the automobile of this embodiment, FIGS.
As shown in the figure, in consideration of the aerodynamic characteristics and appearance of the vehicle body, the vehicle body is designed so that the bonnet 1 and the front window 2 have approximately the same slope from their surface lines. forms a smooth sketch-plane.

In addition, approximately at the center of the rear end portion 1b of this bonnet 1, as shown in FIGS. An outside air guide portion 3 is formed so as to be depressed in an inclined manner so as to gradually become deeper from the surface 1a.

On the other hand, as shown in FIGS. 2 and 3, the lower end portion 2a of the front window 2 is supported by a cowl box 8, and a crab and sonyu 5 are provided on the upper surface side of the cowl box 8. In addition, an outside air inlet 6 is formed at a position directly below the end of the outside air guide section 3 of this pump 5, and further, in this outside air inlet 6,
A plenum 9, which has an air passage inside and is equipped with a fan 12, is attached to a cowl upper panel 7 extending downward from the cowl box 8 so as to abut against the cowl upper panel 7. This plenum 9 is connected to a duct 10 through a ventilation hole 11 formed in the cowl upper panel 7.
Air conditioner connected to the indoor air conditioner (not shown)
is communicated with.

Therefore, the outside air (traveling wind) introduced into the plenum 9 from the outside air inlet 6 can be supplied to the air conditioner side by the fan 12 via the duct IO.

However, as mentioned above, since the surface line of the bonnet l and the surface line of the front window 2 are made to have substantially the same slope, even if the outside air guide part 3 is provided on the bonnet l, the front window 2 is Not only does it hardly function as a vertical wall that deflects the wind from the vehicle downward, but in some cases, the outside air inlet 6 may be affected by the suction effect of the wind that flows directly from the outside air guide section 3 toward the front window 2. As described above, the vicinity becomes a negative pressure state, and as a result, it becomes difficult to introduce outside air from the outside air inlet 6.

Therefore, in this embodiment, the present invention is applied to the outside air guide portion 3 at a position near the rear of the vehicle body of the outside air inlet 6.
A guide member 4, which will be described later, is arranged so as to face the rear end 3a.

The guide member 4 is constructed by bending a band-shaped plate material long enough to cover almost the entire width direction of the outside air guide section 3 in the width direction.
With the flat part 4a (this flat part 4a corresponds to the vertical wall part in the claims) facing the rear end part 3a of the outside air guide part 3, the other flat part 4b is fastened to the garnish 5. It is attached to the vehicle body by dressing it. The guide member 4 is dimensioned in the vertical direction so that its upper end 4c protrudes above the rear end 3a of the outside air guide section 3 and is approximately at the same height as the bonnet rear end 1b in the installed state. Set.

When the guide member 4 is provided in this way, as shown by the streamline A in FIGS. 2 and 3, the running wind flowing rearward on the surface la of the bonnet l as the car runs is guided by outside air. It is smoothly guided to the kite member 4 side by the portion 3. The traveling wind guided to the guide member 4 side is deflected downward by colliding with one of the flat surfaces 4a of the guide member 4, and is smoothly introduced to the outside air introduction port 6 side.

That is, by forming the outside air guide part 3 on the bonnet l and arranging the guide member 4 at a position opposite to this as in this embodiment, the surface line of the bonnet l and the surface line of the front window 2 can be easily aligned. This allows outside air to be reliably introduced into the air conditioning system even in cars with configurations that have approximately the same inclination, thereby simultaneously improving the aerodynamic characteristics and appearance of the car and improving the outside air introduction performance. It is something that will be done.

Second Embodiment FIG. 4 shows the front part of an automobile equipped with an outside air introduction structure according to a second embodiment of the present invention.

In this embodiment, whereas the first embodiment had a dedicated member as the guide member 4, the guide member 4 was constructed by a part of the garnish 5.

That is, as shown in FIGS. 5 and 6, the garnish 5
A portion corresponding to the outside air guiding portion 3 is bulged upward so as to have an oval-shaped cross section to form a bulging portion 20, and the bulging portion 20 is used as the guide member 4. A plurality of outside air inlets 21, 21, . Part 2
The inclination angle of the other plane part 20b, which is continuous with the upper end of 0a and extends rearward from this part, is made relatively corresponding to the inclination of the outside air guide part 3 so that it can be used as a vertical wall part for deflecting the traveling wind. It is set. Further, the internal space of the bulging portion 20 directly faces the plenum 9, and functions as the outside air inlet 6 as it is.

With this configuration, the wind flowing toward the rear of the vehicle body along the bonnet 1 is guided by the outside air guide section 3, and the outside air inlet 2+ formed on one plane 20a of the bulging section 20,
21. After being introduced into the interior of the bulge 20
The air is deflected downward by the other plane portion 20b, and is caused to flow into the plenum 9 through the outside air inlet 6. This allows outside air to be smoothly introduced into the air conditioner in the passenger compartment. That is, in this embodiment as well, as in the first embodiment, it is possible to reliably introduce outside air while maintaining the aerodynamic characteristics and appearance of the vehicle body.

Third Embodiment FIG. 7 shows the front part of an automobile equipped with an outside air introduction structure according to a third embodiment of the present invention.

In the outside air introduction structure of this embodiment, a part of the rear end 1b of the bonnet l is not provided with the groove-shaped outside air guide part 3 in the bonnet l as in the above embodiments, but the outside air guide part 3 is I am trying to use it as a. Then, a guide member 4 bent into an abbreviated cross-section having two flat parts 4a and 4b is attached to the rear end part 1b of the bonnet 1, which becomes the outside air guide part 3. is attached in such a manner that it projects upwardly from the bonnet l, so that the one plane part 4a functions as a vertical wall part referred to in the claims. Note that an opening 4c of a predetermined size is formed in the other flat surface 4b of the guide member 4 so as to face the outside air inlet 6 located below the guide member 4.

With this configuration, the wind flowing toward the rear of the vehicle body along the bonnet l is deflected downward by colliding with one plane portion 4a (i.e., vertical wall portion) of the guide member 4, and is deflected downward from the opening thereof. 4c, the outside air is introduced into the air conditioner side through the inlet 6, and in this embodiment, as in the above embodiments, the outside air can be introduced reliably while maintaining the aerodynamic characteristics and appearance of the vehicle body. This is something that can be realized.

Fourth Embodiment FIG. 9 shows the front part of an automobile equipped with an outside air introduction structure according to a fourth embodiment of the present invention.

In this embodiment, as in the third embodiment, a part of the rear end of the bonnet l is used as it is as the outside air guide section 3.

However, in this third embodiment, the guide member 4 is attached to the garnish 5 or the bonnet 1 as in each of the above embodiments.
The guide member 4 is not provided in the wiper device 1.
This embodiment differs from the above embodiments in that the wiper blade section 14 is provided in No. 3.

That is, the guide member 4 is composed of a band-shaped plate with a curved cross section, and the inside of the curved surface is directed toward the front of the vehicle body, and its upper end is the rear end portion 1b of the bonnet l (i.e., the outside air guide portion 3
) is attached to the wiper blade portion 14 of the wiper device 13 in the retracted state so as to protrude upward from the wiper device 13 .

With this configuration, the wind flowing toward the rear of the vehicle body along the bonnet l is deflected downward by colliding with the guide member 4, and is introduced into the air conditioner side through the outside air inlet 6. becomes. Therefore, after this embodiment, as in the case of each of the above-mentioned embodiments, reliable introduction of outside air can be realized while maintaining the aerodynamic characteristics and appearance of the vehicle body.

In addition to functioning as a vertical wall portion that deflects the traveling wind as described above, this guide member 4 can also function as a lifting prevention member that prevents the wiper blade portion 14 from lifting up during high-speed driving. be.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main parts of an automobile equipped with an outside air introduction structure according to the first embodiment of the present invention, FIG. 2 is an enlarged view of the section ■ in FIG. 1, and FIG. 4 is a perspective view of essential parts of an automobile equipped with an outside air introduction structure according to a second embodiment of the present invention, FIG. 5 is an enlarged view of the V section in FIG. 4, and FIG. 5
VT-Vl vertical cross-sectional view in the figure, FIG.
Fig. 8 is an enlarged vertical sectional view taken along the line ■-■ of Fig. 7, Fig. 9 is a perspective view of a main part of an automobile equipped with an outside air introduction structure according to a fourth embodiment of the present invention, and Fig. 1O is a diagram showing Fig. 9. FIG. l...Bonnet 2...Front window 3...Outside air guide section 4...Guide member 5...Garnish 6...Outside air inlet a...Cowl upper panel 8... Cowl box 9... Blenheim IO... Duct 11... Ventilation port

Claims (1)

[Claims] 1. The surface line of the hood located at the front of the vehicle body and the surface line of the front window located immediately behind the hood have substantially the same inclination angle, and outside air is introduced into the passenger compartment at a position below the intersection. In the automobile, the bonnet is formed with a running wind guide part that guides the running wind flowing on the surface of the hood near the outside air inlet, and the vehicle body of the running wind guide part is formed. A guide having a vertical wall portion at a position opposite to the rear end portion in the front-rear direction and configured to protrude above the traveling wind guide portion and deflect the traveling wind flowing through the traveling wind guide portion toward the outside air introduction port. An outside air introduction structure for an automobile, characterized in that members are arranged.