JP6357443B2 - Cowl louva - Google Patents

Description

  The present invention relates to a cowl louver installed at a front lower portion of a front window, and more particularly, to a cowl louver having a water shielding plate structure that can prevent water from entering a vehicle compartment even when high-pressure water is received.

An automobile cowl louver is installed at the front lower part of the front window and functions as a blind duct and a blindfold for the vehicle body joint.
FIG. 4 is a sectional view of a conventional cowl louver. In FIG. 4, a rear end portion of a cowl 61 that covers the engine is connected to the vehicle body 60. Above the rear end of the cowl 61, an outside air intake port 70 is provided for taking outside air into the vehicle interior (air conditioner).

  The cowl louver 50 is assembled to the front upper portion of the cowl 61. The cowl louver 50 has a drainage panel 51. The drainage panel 51 is provided with a plurality of openings 52 for draining water on the cowl louver 50 and taking in outside air. Further, a shielding plate 53 that is inclined downward and forward is provided behind the drainage panel 51.

In the cowl louver 50 configured as described above, the air taken in from the opening 52 flows on the cowl 61 and is taken into the vehicle through the outside air intake port 70.
Further, when it is raining, water flows down from the opening 52 of the drainage panel 51 onto the cowl 61 and is drained from a drain outlet (not shown) at the bottom of the cowl 61. In addition, when it is rained while the vehicle is running, rain falls relatively obliquely rearward into the opening 52, so that it is received by the water shielding plate 53 to suppress the momentum of the water, rebound, etc. Water is prevented from entering the outside air intake port 70 due to the above.
Patent Document 1 discloses a structure in which a water shielding body (not shown) having an L-shaped cross section is provided in a plurality of openings to receive water from obliquely forward in a drainage panel of a cowl louver.

JP 2012-61991 A

However, in the cowl louver 50 having the conventional configuration shown in FIG. 4, for example, when the vehicle is injected with high-pressure water by a high-pressure car wash machine, high-pressure water enters the opening 52 of the drainage panel 51 from various directions. Will do. For this reason, there is room for improvement in order to prevent the high pressure water from directly hitting the cowl 61 and preventing the rebound from entering the outside air intake port 70.
Such a problem is the same even when a water shield having an L-shaped cross section is provided in the opening as disclosed in Patent Document 1.

  The present invention has been made paying attention to the above-described points, and is a cowl louver having a water shielding plate structure, and more particularly, a cowl louver capable of preventing water from entering a vehicle interior when receiving high-pressure water. The purpose is to provide.

In order to solve the above-described problems, a cowl louver according to the present invention is a cowl louver installed at a front lower portion of a front window, and has an opening for taking in outside air, and a water shielding plate structure disposed below the opening. The water shielding plate structure is bent so that a fold extending in the vehicle width direction is formed, and a first water shielding plate having a valley side surface directed toward the vehicle front side, and the first In front of the first water shielding plate, it is bent so that a fold extending in the vehicle width direction is formed, and the valley side surface thereof is arranged opposite to the valley side surface of the first water shielding plate. An upper end of the second water-blocking plate facing the valley-side surface of the first water-blocking plate, and a valley-side of the second water-blocking plate. A lower end of the first water shielding plate is disposed facing the surface, and a flow path is formed between the first water shielding plate and the second water shielding plate. Characterized in that it is.
In addition, it is preferable that the first water shielding plate bends in an L-shaped cross section, and the second water shielding plate bends in a U-shaped cross section.
Further, the water shielding plate structure is disposed above a cowl having a drain outlet, and the distance between the upper end of the second water shielding plate and the valley side surface of the first water shielding plate is a, When the distance between the lower end of the first water shielding plate and the valley side surface of the second water shielding plate is b, and the distance between the lower end of the first water shielding plate and the cowl is c, a It is desirable that> b and b <c.
Further, the distance between the first water shielding plate and the second water shielding plate so that the water entering the flow path through the opening hits at least the valley side surface of the first water shielding plate. Is desirable to be set.
Further, the first water shielding plate and the second Saegimizuban is formed to extend in the vehicle width direction, the flow rate of air in the flow path that is set by the length of the vehicle width direction desirable.

  According to such a structure, the flow path of a labyrinth structure can be comprised by the said 1st water shielding board and the 2nd water shielding board in the said water shielding board structure. For this reason, necessary and sufficient air can be taken into the vehicle interior, and no matter what direction the high-pressure water enters during high-pressure car washing or the like, it does not hit the cowl directly, and the water flows through the flow path of the labyrinth structure. The speed (energy) of can be greatly attenuated. Therefore, the invasion of water into the outside air intake due to the splashing of water can be remarkably suppressed as compared with the conventional case, and the ejection of water from the outlet in the air conditioner can be prevented.

  According to the present invention, in a cowl louver having a water shielding plate structure, it is possible to prevent water from entering the vehicle compartment particularly when high pressure water is received.

FIG. 1 is a perspective view of a cowl louver according to the present invention as seen from the front side. FIG. 2 is a perspective view (partially broken) of the water shielding plate structure assembled to the cowl louver in FIG. 1. FIG. 3 is a cross-sectional view of the cowl louver shown in FIG. 1 attached to the vehicle. FIG. 4 is a cross-sectional view of a conventional cowl louver attached to a vehicle.

  Hereinafter, embodiments of the cowl louver of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a cowl louver according to the present invention as viewed from the front side, and FIG. 2 is a perspective view showing a partially broken water shielding plate structure assembled to the cowl louver of FIG.

  The cowl louver 1 shown in FIG. 1 is a member installed at the front lower part of the front window. In the cowl louver 1, for example, a mesh-shaped opening 2 is formed at a position corresponding to a vehicle air conditioner. A water shielding plate structure 10 shown separately in FIG. 1 is provided below the opening 2. The length dimension in the vehicle width direction of the opening 2 and the length dimension in the vehicle width direction of the water shielding plate structure 10 are formed to be substantially equal, and the length dimension takes into account the efficiency of taking in air (predetermined) Is set so that the flow rate can be taken in).

  FIG. 3 is a cross-sectional view of the cowl louver 1 attached to the vehicle body. In FIG. 3, a rear end portion of a cowl 31 that covers an engine (not shown) is connected to the vehicle body 30. Above the rear end of the cowl 31, an outside air intake 40 is provided for taking outside air into the vehicle interior (air conditioner). The cowl louver 1 is supported by the front end portion of the cowl 31 and the lower end side of the windshield 35.

  As shown in the drawing, the water shielding plate structure 10 of the cowl louver 1 includes a first water shielding plate 11 having an L-shaped cross section bent so as to form a fold extending in the vehicle width direction, and the first water shielding plate. 11 and a second water shielding plate 12 having a U-shaped cross section that is bent so that a crease extending in the vehicle width direction is formed. The first water shielding plate 11 is formed in a cross-sectional L shape by a plate-like standing portion 11a and a bottom portion 11b, and a valley side surface thereof is directed to the front side of the vehicle.

On the other hand, the second water shielding plate 12 is formed in front of the first water shielding plate 11 and has a substantially flat plate-like support plate 12b that supports a standing portion 12a having a U-shaped cross section and a lower portion thereof. The surface on the valley side of the standing portion 12a is arranged opposite to the surface on the valley side of the first water shielding plate 11.
More specifically, an upper end of the second water shielding plate 12 (standing portion 12a) is disposed so as to face the valley-side surface of the first water shielding plate 11, and the second water shielding plate. The lower end of the first water shielding plate 11 is disposed so as to face the surface on the valley side of 12 (standing portion 12a).
As a result, a labyrinth flow path 15 is formed between the first water shielding plate 11 and the second water shielding plate 12, and the support plate 12 b in the second water shielding plate 12. A flow path 16 that flows in the vehicle width direction is formed above. In addition, the water which flows into the flow path 16 flows into the drain port (not shown) provided in the vehicle width direction edge part.

  Moreover, in the flow path 15 of the labyrinth structure, the distance between the valley-side surface of the first water shielding plate 11 and the upper end portion of the second water shielding plate 12 is a, and the first water shielding plate 11. A> b and b <, where b is the distance between the lower end of the first water shielding plate 12 and the valley side surface of the second water shielding plate 12, and c is the distance between the lower end surface of the first water shielding plate 11 and the cowl 31. It is comprised so that it may become c. Further, the water that enters the flow path 15 through the opening 2 hits at least the valley-side surface of the first water shielding plate 11, and the first water shielding plate 11 and the second water shielding plate 12. The distance from the (standing portion 12a) is set.

In the cowl louver 1 configured as described above, when water enters from the opening 2, the water entering the flow channel 16 strikes the second water shielding plate 12 or the support plate 12 b to attenuate the speed (energy), and the vehicle width direction It flows to a drain outlet (not shown) provided on the end side.
On the other hand, the water that has entered the flow path 15 from the opening 2 first hits the first water shielding plate 11 and its speed (energy) is greatly attenuated.
Next, the water bounced off from the first water shielding plate 11 hits the second water shielding plate 12 and falls onto the cowl 31, and further flows to the bottom of the cowl 31 in a state where the speed (energy) is weakened.

Further, according to such a water shielding plate structure 10, no matter what direction the water enters the opening 2, the water shielding plate structure 10 always hits either the first shielding plate 11 or the second shielding plate 12. . For example, when high-pressure water enters from the position directly above the opening or from the rear side, the water hits the bottom 11b of the first water shielding plate 11 and flows through the flow path 15 in a state where much energy has been lost.
For this reason, water entering from the opening 2 against the cowl 31 does not hit the speed (energy) and the occurrence of rebound is suppressed, so that water can be prevented from entering the outside air intake 40. it can.

  As described above, according to the embodiment of the present invention, in the water shielding plate structure 10 below the opening 2, the flow path of the labyrinth structure is formed by the first water shielding plate 11 and the second water shielding plate 12. 15 was configured. For this reason, necessary and sufficient air can be taken into the vehicle interior, and the labyrinth structure does not directly hit the cowl 31 even if high-pressure water enters the opening 2 from any direction during high-pressure car washing or the like. The flow rate (energy) of water can be greatly attenuated by the flow path 15. Therefore, the invasion of water into the outside air intake port 40 due to the splash of water can be remarkably suppressed as compared with the conventional case, and the ejection of water from the air outlet in the air conditioner can be prevented.

In the above-described embodiment, the inclination angle of the first water shielding plate 11 and the second water shielding plate 12 (stand-up portion 12a) in the vehicle front-rear direction is not particularly limited. To design.
In the above embodiment, the first water shielding plate 11 is bent in an L-shaped cross section, and the second water shielding plate 12 (the standing portion 12a) is bent in a U-shaped cross section. However, the present invention is not limited to this, and the degree of bending can take various forms.

  The cowl louver according to the present invention will be further described based on examples. In this example, the effect of the present invention was verified by forming the cowl louver shown in the above embodiment and conducting an experiment.

[Experiment 1]
In Experiment 1, the cowl louver shown in the above embodiment was manufactured and attached to an experimental vehicle. Then, after spraying high pressure water with a predetermined pressure on the cowl louver from a predetermined direction for a predetermined time, the amount of water entering the outside air intake was measured (Example 1).
Further, as a comparative example, a cowl louver having the conventional structure shown in FIG. 4 was used, and the amount of water that had entered the outside air intake was measured under the same conditions as in Example 1 (Comparative Example 1).

As a result of Experiment 1, the amount of water that entered the outside air intake port in Example 1 was about one-fifth of the amount of water that entered the outside air intake port in Comparative Example 1.
From the results of Experiment 1 above, it was confirmed that by using the cowl louver of the present invention, it was possible to prevent water from entering the vehicle compartment even when receiving high-pressure water.

DESCRIPTION OF SYMBOLS 1 Cowl louver 2 Opening part 10 Water shielding board structure 11 1st water shielding board 11a Standing part 11b Bottom part 12 2nd water shielding board 12a Standing part 12b Support plate 15 Flow path 16 Flow path 31 Cowl 70 External air intake mouth

Claims (5)

A cowl louver installed at the front lower part of the front window,
Comprising an opening for taking in outside air, and a water shielding plate structure disposed below the opening,
The water shielding plate structure is
A first water shielding plate bent so as to form a crease extending in the vehicle width direction, the valley side surface thereof facing the vehicle front side;
In front of the first water shielding plate, it is bent so that a crease extending in the vehicle width direction is formed, and the valley side surface thereof is arranged opposite to the valley side surface of the first water shielding plate. And a second water shielding plate,
The upper end of the second water shielding plate is disposed so as to face the valley side surface of the first water shielding plate,
The lower end of the first water shielding plate is disposed so as to face the valley side surface of the second water shielding plate,
A cowl louver, wherein a flow path is formed between the first water shielding plate and the second water shielding plate.   2. The cowl louver according to claim 1, wherein the first water shielding plate is bent into an L-shaped cross section, and the second water shielding plate is bent into a U-shaped cross section. The water shielding plate structure is disposed above a cowl having a drain port,
The distance between the upper end of the second water shielding plate and the valley side surface of the first water shielding plate is a,
The distance between the lower end of the first water shielding plate and the valley side surface of the second water shielding plate is b,
When the distance between the lower end of the first water shielding plate and the cowl is c,
The cowl louver according to claim 1 or 2, wherein a> b and b <c.   The distance between the first water shielding plate and the second water shielding plate is set so that water entering the flow path through the opening hits at least a valley side surface of the first water shielding plate. The cowl louver according to any one of claims 1 to 3, wherein the cowl louver is provided. Said first impermeable sheet and the second Saegimizuban is formed to extend in the vehicle width direction, the flow rate of air in the flow path, and characterized in that it is set by the length of the vehicle width direction The cowl louver according to any one of claims 1 to 4.

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