JPH09132026A - Cowl box structure for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an air flow rate from being lowered, thereby enhance drainage properties, and concurrently enhance workability of manufacture. SOLUTION: An outside air induction port is formed in a body outer skin forming the lower side of a window in the front surface of a body, and a box 23 which receives incoming outside air 6, water and the like, is disposed in a cowl part 5 at the lower part of the outside air induction port. A partition plate 24 as an inner wall for forming both a water channel and an outside air induction passage, is provided while being perpendicularly intersected with the longer direction of the box 23 at the outside position in the car width direction from the outside induction port in the box 23. Water 8 is thereby prevented from ingressing into the outside air induction passage by the partition plate 24, furthermore water is surely separated from outside air, let water flow in the water channel, and let outside air also flow in the outside air induction passage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile cowl box structure having an improved cowl box.

[0002]

2. Description of the Related Art As shown in FIG.
In many cases, an outside air introduction port 4 for an air conditioner (not shown) is provided on a body outer plate 3 provided under the window 2 (front windshield) on the front side of. Further, as shown in FIG. 11, in the cowl portion 5 (see FIG. 17) located below the outside air inlet 4,
The outside air 6 entering from the outside air introduction port 4 is guided into the vehicle compartment 7 (see FIG. 17), and the infiltrated water 8 is transferred into the engine room 9 (see FIG. 17).
The cowl upper panel 10 (sheet metal) for discharging below is attached.

A cowl upper panel 10 as described above is attached to a cowl portion 5 of an automobile in which an outside air inlet 4 is provided in a body outer plate 3, but in order to save space, the cowl portion 5 is There is also a case where a cowl box 11 made of synthetic resin is attached as shown in FIGS. As shown in FIG. 15, the cowl box 11 includes a box portion 12 and a casing portion 13 attached below an upper edge portion of the box portion 12.
A passage 14 through which the outside air 6 and the water 8 pass, an outside air passage 15 through which the outside air 6 passes, and a water passage 16 through which the water 8 passes are formed inside the casing portion 13.

A gutter 17 is provided below the passage 15,
Furthermore, the passage 14 has a net 18 for separating the outside air 6 and the water 8 from each other.
A prevention plate 19 is provided to prevent the ingress of water and water 8. Then, as shown in FIG. 16, an external air inlet 20 communicating with the passage 15 of the casing portion 13 is formed in the wall portion of the box portion 12, and a water inlet 22 is provided in the bottom 21 of the box portion 12. ing.

As a result, the outside air introduction port 4 of the body outer plate 3
The fresh air 6 and the water 8 that have further infiltrated into the passage 15 of the casing portion 13 through the outer air inlet 20 and the water inlet 22 of the box portion 12, and the outer air passes through the outer air passage 15 through the blower (not shown) of the outside air conditioner. The water 8 is taken into the vehicle compartment 7 via the water passage 16 and is discharged to the outside of the vehicle from the water passage 16 through the engine room 9.

As an outside air introduction structure for a vehicle body, there is one disclosed in Japanese Utility Model Laid-Open No. 2-511117. In this publication, a flange member having a drainage passage extending in the vehicle body width direction is provided upright between a front wall portion of a cowl box and an outside air introduction port provided in a bottom wall portion of the cowl box into the vehicle interior. Is.

[0007]

As described above,
In the conventional cowl box, the invaded water and the outside air temporarily pass through the same passage in the casing. Therefore, the passage for separating the outside air from the water and the infiltration of the water into the passage are prevented so that the water does not flow into the outside air passage. There was a preventive plate to prevent this. For this reason, the passage becomes narrow, and it is not possible to sufficiently secure the passages for the outside air and the water. In the outside air intake mode of the outside air conditioner, there are problems that the air volume decreases and the drainage of water is poor. there were.

Further, when the passage is narrowed, there is a problem that the wind velocity in the passage is increased and water is drawn into the outside air passage. Further, since the net and the prevention plate are attached, the number of parts is increased and the workability of production is deteriorated.

In the outside air introduction structure for a vehicle body disclosed in Japanese Utility Model Laid-Open No. 2-511117, the vehicle body width direction extends between the front wall portion of the cowl box and the outside air introduction port into the vehicle compartment. Although the flange member is erected,
Since the flange portion which forms the drainage passage is provided, there is a problem that the structure becomes more complicated.

The present invention has been made to solve the above-mentioned conventional problems, and improves the structure of the cowl box to
An object of the present invention is to provide a cowl box structure for an automobile, which has a simple structure while improving the workability while improving the air flow and drainage.

[0011]

According to a first aspect of the present invention, an outside air introducing port is formed in a body outer plate forming a lower side of a window on a front surface of a vehicle body, and the outside air introducing port is introduced into a cowl portion below the outside air introducing port. A box for receiving water or the like is provided, and a partition plate as an inner wall is provided inside the box at a position outside the outside air introduction port in the vehicle width direction, and the water flow path and the outside air introduction path are formed by the partition plate. It is what

The invention according to claim 2 is characterized in that a drain port is provided in the lower portion of the box on the engine side, and a valve is provided at the drain port.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention understood from the description of claim 1, an outside air introduction port 4 is formed in a body outer plate 3 which forms a lower side of a window 2 on the front surface of a vehicle body shown in FIG. A box 23 for receiving inflowing water 8 is provided in the cowl portion 5 below the outside air inlet 4. Outside air inlet 4 in box 23
A partition plate 24 as an inner wall for forming the water flow path 26 and the outside air introduction path 25 is provided at a position outside the vehicle body width direction so as to be orthogonal to the longitudinal direction of the box 23.

According to the first aspect of the invention, a partition plate 24 is provided inside the box 23 provided in the cowl portion 5 below the outside air introduction port 4 formed in the body outer plate 3 to partition the inside of the box 23. Therefore, the partition plate 23 can separate and form the water flow path 26 that prevents the water 8 from entering and the outside air introduction path 25. As a result, the infiltrated water 8 and the outside air 6 can be immediately separated.

In the present invention understood from the second aspect, as shown in FIGS. 5 and 6, a drain port 28 is provided in the lower portion of the box 23 on the engine room 9 side. This drain 28
A rubber valve 30 is provided in the.

According to the second aspect of the present invention, the inflowing water 8 is drained by the rubber valve 30 provided at the drainage port 28 in the lower part of the box 23, and hot air is prevented from inflowing from the engine room 9. Let

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4 by giving the same reference numerals to the same members as those in FIGS. In FIG. 1, reference numeral 23 denotes a synthetic resin box 23 which is the main body of the cowl box according to the present invention. The box 23 is provided below the body outer plate 3 attached to the lower side of the window 2 on the front surface of the vehicle body 1 shown in FIG. That is, the box 23 is arranged in the cowl portion 5 directly below the outside air introduction port 4 formed in the body outer plate 3.

A partition plate 24 is provided inside the box 23.
One piece is attached orthogonally to 23 longitudinal wall portions.
The mounting position of this partition plate 24 is the outside air introduction port 4 of the body outer plate 3.
It is on the outside in the vehicle width direction.

By attaching the partition plate 24 to the inside of the box 23 in this manner, two chambers, large and small, are formed inside the cowl box 23. Of these, one small chamber is used for the outside air introduction passage 25, and the other large chamber is used for the water flow passage 26.

The bottom portion 23a of the large chamber is formed so as to be inclined downward toward the outside in the vehicle width direction so that the water that has entered can easily flow. The upper end of the partition plate 24 is attached to a position lower than the upper edge of the box 23 so as to form a wind passage with the body outer plate 3.

Further, a drain port 28 to which one end of a hose 27 (see FIG. 4) forming a water flow path 26 is connected is projected on a front wall portion of the box 23 located on the front side of the vehicle body. Hose 27
The other end faces the inside of the engine room 9 and drains the water 8 from the engine room 9 to the outside of the vehicle. Further, as shown in FIG. 2, an opening 29 for connecting a duct (not shown) forming the outside air introduction path 25 is provided on the driver's seat side of the box 23.

In addition, inside the drain port 28 of the box 23,
A valve 30 shown in FIGS. 5 and 6 is attached. The valve 30 is attached so as to abut on a cross-shaped valve holding portion 31 provided at the end of the drainage port 28. As a result, the valve 30 can be opened and closed in its lower portion. By such a cross-shaped valve holding portion 31 and valve 30, the water 8 in the box 23 flows toward the hose 27 side, and conversely, hot air in the engine room 9 is prevented from entering the box 23.

As shown in FIG. 8, the valve 30 is formed of a rubber plate having a substantially circular shape in front view, and a part (upper edge) of the outer peripheral edge of the rubber plate is shown in FIGS. As shown in FIG. 9, a flange portion 32 orthogonal to the rubber plate surface is formed. A flange portion 33 is provided at an intermediate portion of the flange portion 32, and by sandwiching the valve holding portion 31 with the flange portion 33 and the upper edge portion of the valve 30, the upper side of the valve 30 is attached to the valve holding portion. It is fixed at 31. In FIG. 4, the reference numeral 34 is a dash panel.

In this embodiment, the partition plate 24 and the box 23 are integrally formed. However, the partition plate 24 may be formed as a separate body and attached instead of being integrally molded. Further, by forming a plurality of ribs (not shown) that connect the inner wall portion and the bottom portion 23a in the box 23, the strength of the box 23 can be improved.

Since this embodiment is constructed in this way, when the outside air 6 mixed with water 8 flows into the box 23 through the outside air introduction port 4 (see FIG. 10) provided in the body outer plate 3, the outside air 6
First, the water 8 and the water 8 flow into the large chamber of the box 23, and only the outside air 6 is drawn by the blower of the air conditioner and flows into the outside air introduction passage 25 of the small chamber to be taken into the passenger compartment from the passenger side. Be done. At this time, since the cross-sectional area of the small chamber (outside air introduction path 25) in the box 23 is larger than the conventional one, the wind velocity flowing inside can be further reduced, and the infiltration of the water 8 into the outside air introduction path 25 can be easily prevented. can do.

On the other hand, the water 8 is separated from the outside air 6 by the partition plate 24, passes through the inclined bottom portion 23a of the large room, is guided to the drain port 28 on the driver's side, and the weight of the water causes a rubber valve. Press 30 to open it, and as shown in FIG. 4, it is discharged to the engine room 9 through the hose 27. However, the hot air from the engine room 9 is blocked by this valve 30, and the hose 27
Also, the flow into the vehicle compartment 7 from the box 23 is prevented.

[0027]

According to the first aspect of the present invention, the box is provided in the cowl portion below the outside air inlet formed in the body outer plate, and the partition plate is provided in the box. The inflowing outside air and water can be separated by the partition plate and flow into the outside air introducing passage and the water passage.

Further, since the passage provided in the box is not provided with a net for separating outside air and water, which has been conventionally used, and a preventive plate for preventing the intrusion of water, the cross-sectional area of the passage is conventionally changed. Can be larger than. As a result, the wind speed in the passage can be further reduced, and the entry of water into the outside air introduction passage can be reliably prevented.

Further, since the net for attaching to the passage in the box and the penetration preventing plate are not necessary, the number of parts can be reduced and the structure of the box can be simplified. Moreover, since the partition plate and the box can be integrally molded, the box can be easily manufactured.

According to the second aspect of the present invention, since the valve is provided at the drain port provided in the lower part of the box on the engine side, only the water that has flowed into the box is discharged, and the inflow of hot air from the engine room is blocked. be able to. Further, since the valve is provided inside the drain port on the indoor side, deterioration of the valve can be suppressed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a front view of that of FIG.

FIG. 3 is a schematic diagram of that of FIG.

FIG. 4 is a schematic view taken along the line CC of FIG.

FIG. 5 is an enlarged sectional view of a portion A in FIG. 4;

FIG. 6 is a view on the arrow B of FIG. 5;

FIG. 7 is a side view of the valve shown in FIG.

8 is a front view of the valve shown in FIG. 7. FIG.

9 is a top view of the valve shown in FIG.

FIG. 10 is a perspective view for explaining a body outer plate of a vehicle.

FIG. 11 is a schematic view of a conventional cowl upper panel.

FIG. 12 is a schematic view of a conventional cowl box.

FIG. 13 is a front view of a conventional cowl box.

FIG. 14 is a top view of that of FIG.

FIG. 15 is a right side sectional view of the one shown in FIG.

16 is a perspective view of the one shown in FIG. 15 seen from above.

FIG. 17 is a side view showing the position of the cowl portion of the vehicle.

[Explanation of symbols]

 1 vehicle body 2 window 3 body outer plate 4 outside air inlet port 5 cowl part 8 water 9 engine room 23 box 24 partition plate 25 outside air inlet passage 26 water flow passage 28 drainage port 30 valve

Claims (2)

[Claims] 1. An outside air introducing port is formed in a body outer plate forming a lower side of a window on a front surface of a vehicle body, and a cowl portion below the outside air introducing port is provided with a box for receiving inflowing water. A cowl box structure for an automobile, characterized in that a partition plate as an inner wall is provided at a position outside the outside air introduction port in the vehicle width direction, and the partition plate forms a water flow path and an outside air introduction path. 2. The cowl box structure for an automobile according to claim 1, wherein a drain port is provided at a lower portion of the box on the engine side, and a valve is provided at the drain port.