JP3684806B2 - Car cowl box structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile cowl box structure.
[0002]
[Prior art]
4 and 5 show a cowl box structure of a conventional automobile. A cowl box 1 is composed of a cowl top panel 2, a dash upper panel 3, a cowl front panel 4, and a cowl side panel (not shown). .
[0003]
A cowl top panel 2 as an upper wall of the cowl box 1 includes a cowl top upper 2A having a mountain-shaped cross section, and a cowl top lower joined to the lower surface side of the cowl top upper 2A to form a closed section having a substantially wedge-shaped cross section. 2B.
[0004]
On the inclined front wall surface of the cowl top upper 2A, the lower portion of the windshield panel 5 is bonded and fixed, and the lower portion of the windshield panel 5 extends to the upper end portion of the cowl front panel 4. A cowl cover 6 is disposed so as to cover the lower side of the windshield panel 5 and the front end of the cowl top panel 2.
[0005]
An air inlet 7 (not shown) is formed on one side of the upper surface of the cowl cover 6 in order to take in outside air.
[0006]
On the other hand, an air intake 8 is provided near the rear portion of the bottom portion 3A of the dash upper panel 3 as a bottom wall portion of the cowl box 1 so as to be offset from the air inlet 7 in the vehicle width direction. A drainage groove 9 is formed in the front portion in the vehicle width direction.
[0007]
On the front side of the air intake 8, a water shielding plate 10 is joined and disposed over the entire region in the vehicle width direction from the bottom 3 A of the dash upper panel 3 to the lower surface of the front edge of the cowl top panel 2. A plurality of intake holes 11 are formed in the vehicle width direction.
[0008]
[Problems to be solved by the invention]
In the conventional structure, water enters the cowl box 1 from the air inlet 7 together with outside air when it rains or is washed.
[0009]
Therefore, in order to separate the water that has entered the cowl box 1 from the outside air that has been sucked in and to suck only the outside air from the air intake 8, the water shielding plate 10 is disposed over substantially the entire region in the vehicle width direction as described above. However, since the outside air is sucked by a blower (not shown), the intake air flow velocity is increased in the peripheral portion of the intake hole 11 provided in the water shielding plate 10, and the water that has entered the cowl box 1 becomes mist-like. There is a risk of being sucked into the air intake 8 through the intake hole 11 together with outside air.
[0010]
Therefore, the present invention provides a cowl box structure for an automobile that can reliably prevent water from entering the air intake.
[0011]
[Means for Solving the Problems]
In claim 1, an air introduction port is provided at one end side in the vehicle width direction with the vehicle width direction central portion on the upper surface of the cowl box as a boundary, and an air intake is provided below the rear portion of the cowl box at the other end side in the vehicle width direction. Air is provided along the vehicle width direction from the vicinity of the air inlet to the vicinity of the air intake, and the air that bypasses the water shield from the air inlet and circulates around both end portions thereof. A cowl box structure of an automobile in which a distribution path is formed , wherein the air inlet is disposed on the vehicle front side with respect to the water shielding plate, and the air intake is disposed on the vehicle rear side with respect to the water shielding plate, It is characterized in that water entering with the outside air from the air inlet is prevented from entering the air intake.
[0012]
In Claim 2, the drainage groove part which formed the drainage guide in the center lower end of the water shielding board of Claim 1, and provided the water stored under this water shielding board in the bottom wall part of the cowl box It is characterized by being guided to.
[0013]
According to a third aspect of the present invention, a closed cross section is formed in the vehicle width direction on the lower surface of the fixed portion of the windshield panel fixed to the upper wall of the cowl box according to the first and second aspects. .
[0014]
According to a fourth aspect of the present invention, a cowl front extension that projects forward is provided at the upper edge of the cowl front panel that constitutes the front wall of the cowl box according to any one of the first to third aspects. The water shielding plate is disposed in the vehicle width direction from the upper edge of the cowl front panel to the lower surface of the cowl top upper that constitutes the upper wall of the cowl box. It features a cowl top lower.
[0015]
According to claim 5, the bottom wall portion of the cowl front extension according to claim 4 is inclined downward toward the center and the rear of the vehicle, and a drainage guide is formed at the center lower end of the cowl top lower, It is characterized in that the water stored below the plate is guided toward the drainage groove formed in the vehicle width direction on the dash upper panel constituting the rear bottom wall of the cowl box below the rear part.
[0016]
In claim 6, a cowl top lower is joined to the lower surface of the windshield panel fixing portion of the cowl top upper constituting the upper wall of the cowl box according to claims 4 and 5, and the cowl top upper and the cowl are joined. A closed cross section is formed in the vehicle width direction with the top lower.
[0017]
【The invention's effect】
According to the first aspect, the water shielding plate is provided from the vicinity of the air inlet to the vicinity of the air intake, and an air circulation path is formed that bypasses the oblique water plate and goes around both side ends thereof. Therefore, the intake flow path can be made longer, so that the intake flow velocity can be made gentle, and the water that has entered from the air inlet with the outside air becomes mist-like and enters the air intake provided near the rear of the cowl box. Can be prevented.
[0018]
According to claim 2, in addition to the effect of claim 1, a drainage guide is formed at the center lower end of the water shielding plate, and the water stored under the water shielding plate is provided on the bottom wall portion of the cowl box. Therefore, the water that has entered the cowl box can be reliably discharged out of the vehicle.
[0019]
According to the third aspect, in addition to the effects of the first and second aspects, the closed cross section is formed in the vehicle width direction on the lower surface of the fixed portion of the windshield panel fixed to the upper wall of the cowl box. In addition to increasing the rigidity of the vehicle body, the support rigidity of the windshield panel can be increased.
[0020]
According to the fourth aspect, in addition to the effects of the first to third aspects, a cowl front extension that protrudes forward is provided on the upper edge of the cowl front panel that constitutes the front wall of the cowl box for reasons of modeling the vehicle body. Even if the cowl box on the upper side of the dash panel is formed so as to protrude from the dash panel to the engine room side, the cowl that forms the upper wall of the cowl box from the upper edge of the cowl front panel Since it is composed of a cowl top lower disposed in the vehicle width direction across the top upper surface, the intake flow rate can be made gentle by bypassing the swash plate and taking a longer intake flow path as described above. It is possible to prevent the water that has entered from the air inlet from becoming mist and entering the air intake provided near the rear of the cowl box.
[0021]
According to claim 5, in addition to the effect of claim 4, the bottom wall portion of the cowl front extension is inclined downward toward the center and the rear of the vehicle, and a drainage guide is formed at the center lower end of the cowl top lower, The water stored under the water shielding plate is guided toward the drainage groove formed in the vehicle width direction on the dash upper panel that forms the rear bottom wall of the cowl box below the rear part. Water that has entered the vehicle can be reliably discharged outside the vehicle.
[0022]
According to the sixth aspect, in addition to the effects of the fourth and fifth aspects, the cowl top lower is joined to the lower surface of the fixed portion of the windshield panel of the cowl top upper that constitutes the upper wall of the cowl box. The upper and cowl top lowers form a closed cross section in the vehicle width direction, so the vehicle body rigidity and the windshield panel support rigidity can be increased, and the cowl top lower is also used in this way. Therefore, it can be obtained advantageously in terms of cost.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with the same reference numerals assigned to the same parts as those of the conventional configuration together with the drawings.
[0024]
In FIGS. 1-3, 1 has shown the cowl box which functions as a vehicle width direction frame | skeleton member of the vehicle body front waist part, and functions as an external air introduction part of an air-conditioner outside a figure by joining and arranging on the upper side of the dash panel 12, A cowl top panel 2, a dash upper panel 3, a cowl front panel 4, and a cowl side panel (not shown) are configured.
[0025]
A cowl top panel 2 as an upper wall of the cowl box 1 includes a cowl top upper 2A having a mountain-shaped cross section, and a cowl top having a closed section 14 having a substantially wedge-shaped cross section joined to the lower surface side of the cowl top upper 2A. It consists of lower 2B.
[0026]
A windshield panel 5 is bonded and fixed with an adhesive 15 on the inclined front wall surface of the cowl top upper 2A.
[0027]
In particular, in this embodiment, a cowl front extension 13 projecting forward is provided at the upper edge of the cowl front panel 4 for reasons such as modeling of the vehicle body, and the cowl box 1 is placed in the engine room E · R more than the dash panel 12. The lower part of the windshield panel 5 extends from the lower part of the windshield panel 5 to the upper end part of the cowl front extension 13 and the front end part of the cowl top panel 2. A cowl cover 6 is disposed so as to cover the cowl front extension 13.
[0028]
An air inlet 7 is formed on one side of the upper surface of the cowl cover 6 in order to take in outside air.
[0029]
On the other hand, an air intake 8 is provided at a position close to the rear portion of the bottom portion 3A of the dash upper panel 3 as a rear bottom wall of the cowl box 1, and is offset from the air introduction port 7 in the vehicle width direction. A drainage groove 9 is formed in the front portion in the vehicle width direction. The air introduction port 7 is provided on one end side in the vehicle width direction with the central portion in the vehicle width direction on the upper surface of the cowl box 1 as a boundary, and below the rear portion of the cowl box 1 on the other end side in the vehicle width direction. An air intake 8 is provided. As shown in FIGS. 1 and 3, the air inlet 7 is disposed on the front side of the vehicle with respect to the water shielding plate 10, and the air intake 8 is disposed on the rear side of the vehicle with respect to the water shielding plate 10. .
[0030]
Reference numeral 10 denotes a water shielding plate provided to prevent water that has entered from the air inlet 7 from entering the air intake 8, and the water shielding plate 10 extends from the vicinity of the air inlet 7 to the vicinity of the air intake 8. The air circulation path is formed so that the outside air sucked from the air introduction port 7 bypasses the water shielding plate 10 and wraps around both end portions thereof to reach the air intake 8.
[0031]
In particular, in this embodiment, the lower end of the above-described cowl top lower 2B is joined to the upper edge of the cowl front panel 4 to form the water shielding plate 10.
[0032]
Reference numeral 16 denotes a drain guide provided at the center lower end of the water shielding plate 10 and serves to guide the water stored below the water shielding plate 10 toward the groove 9 for drainage.
[0033]
In this embodiment, the bottom wall portion of the cowl front extension 13 is inclined downward toward the center and the rear of the vehicle, and the water dripped on the cowl front extension 13 is passed through the drain guide 16 to the rear lower dash upper panel. 3 is guided to the drainage groove portion 9 formed in 3 and reliably discharged to the outside of the vehicle.
[0034]
In addition, 17 in FIG. 2 shows the hood hood of engine room ER.
[0035]
According to the structure of the above embodiment, the water shielding plate 10 is provided from the vicinity of the air inlet 7 to the air intake 8, and the outside air sucked from the air inlet 7 bypasses the water shielding plate 10, Since the air circulation path is formed so as to go to the air intake 8 around the both end portions, the intake circulation path can be made longer, so that the intake air flow velocity can be made gentle, and the air introduction port 7 enters. It is possible to prevent the water from entering the air intake 8 provided near the rear of the cowl box 1 in the form of a mist.
[0036]
In particular, in this embodiment, a cowl front extension 13 projecting forward is provided at the upper edge portion of the cowl front panel 4 constituting the front wall of the cowl box 1 for reasons of modeling of the vehicle body, and the cowl on the upper side of the dash panel 12 is provided. Although the box 1 is formed so as to protrude from the dash panel 12 to the engine room E / R side, even in such a case, the water shielding plate 10 is attached to the cowl box from the upper edge of the cowl front panel 4. Since the cowl top lower 2B disposed in the vehicle width direction is formed over the lower surface of the cowl top upper 2A constituting the upper wall of the vehicle 1 and the air flow path is formed as described above, the intake flow velocity is made gentle. Thus, it is possible to prevent the water that has entered from the air inlet 7 from becoming mist and entering the air intake 8.
[0037]
Further, a drainage guide 16 is formed at the center lower end of the cowl top lower 2B as the water shielding plate 10, and the dash upper panel 3 that constitutes the rear bottom wall of the cowl box below the rear portion of the water shielding plate 10 for storing water below the water shielding plate 10. Therefore, the water that has entered the cowl box 1 can be discharged out of the vehicle.
[0038]
In addition, in the present embodiment, the bottom wall portion of the cowl front extension 13 is inclined downward toward the center and the rear of the vehicle, and the water dripped on the cowl front extension 13 is also connected to the drain groove 9 via the drain guide 16. Therefore, the water that has entered the cowl box 1 can be reliably discharged out of the vehicle.
[0039]
Here, since the bottom wall portion of the cowl front extension 13 is inclined downward toward the center and the rear of the vehicle, the engine room has a relatively large space in terms of the component layout in the engine room ER. Since the bottom wall portion bulges out at the vehicle central portion at the rear end of the E / R, it is possible to prevent obstructing the component layout in the engine room E / R.
[0040]
Further, a cowl top lower 2B is joined to the lower surface of the windshield panel 5 fixing portion of the cowl top upper 2A constituting the upper wall of the cowl box 1, and the cowl top upper 2A and the cowl top lower 2B are connected in the vehicle width direction. Since the closed cross section 14 is formed, the rigidity of the vehicle body can be increased and the support rigidity of the windshield panel 5 can be increased.
[0041]
Moreover, since the cowl top lower 2B is used in this way, it goes without saying that it can be advantageously obtained in terms of cost.
[0042]
In the above-described embodiment, a cowl front extension 13 projecting forward is provided at the upper edge of the cowl front panel 4 for reasons such as modeling of the vehicle body. Although the overhang type projecting toward the R side is shown, it goes without saying that the effect can be obtained by using the conventional type.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is an exploded perspective view of the embodiment.
3 is a cross-sectional view taken along line AA in FIG.
FIG. 4 is a perspective view showing a conventional structure.
5 is a cross-sectional view taken along line BB in FIG.
[Explanation of symbols]
1 cowl box 2A cowl top upper 2B cowl top lower 3 dash upper panel 4 cowl front panel 5 windshield panel 7 air inlet 8 air intake 9 groove 10 water shield plate 12 dash panel 13 cowl front extension 14 closed cross section 16 drain guide

Claims (6)

An air inlet is provided at one end in the vehicle width direction at the vehicle width direction center on the upper surface of the cowl box, an air intake is provided below the rear of the cowl box at the other end in the vehicle width direction, and the air inlet A cowl of an automobile in which a water shielding plate is provided along the vehicle width direction from the vicinity to the vicinity of the air intake, and an air circulation path is formed that bypasses the water shielding plate from the air introduction port and goes around its both ends. Box structure,
By disposing the air introduction port on the front side of the vehicle with respect to the water shielding plate and arranging the air intake on the rear side of the vehicle with respect to the water shielding plate, water entering the outside air from the air introduction port enters the air intake. A cowl box structure for an automobile, characterized in that it is prevented from doing so. 2. A drainage guide is formed at the center lower end of the water shielding plate, and the water stored below the water shielding plate is guided to a drainage groove provided in the bottom wall portion of the cowl box. The car cowl box structure described in 1. The cowl box structure for an automobile according to any one of claims 1 and 2, wherein a closed cross section is formed in the vehicle width direction on the lower surface of the fixed part of the windshield panel fixed to the upper wall of the cowl box. . A cowl front extension that protrudes forward is provided at the upper edge of the cowl front panel that constitutes the front wall of the cowl box, and the cowl box on the upper side of the dash panel is formed to protrude toward the engine room from the dash panel. 4. The water shielding plate is constituted by a cowl top lower disposed in a vehicle width direction from the upper edge of the cowl front panel to the lower surface of the cowl top upper constituting the upper wall of the cowl box. A car cowl box structure according to any one of the above. The bottom wall of the cowl front extension is tilted downward toward the center and rear of the vehicle, and a drainage guide is formed at the lower center of the cowl top lower, so that the water stored below the water shielding plate is stored in the cowl box below the rear part. 5. The cowl box structure for an automobile according to claim 4, wherein the dash upper panel constituting the rear bottom wall is guided toward a groove for drainage formed in the vehicle width direction. A cowl top lower is joined to the lower surface of the windshield panel fixing part of the cowl top upper constituting the upper wall of the cowl box, and a closed cross section is formed in the vehicle width direction by the cowl top upper and the cowl top lower. The automobile cowl box structure according to any one of claims 4 and 5.

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