JPS62168710A - Front body structure of automobile - Google Patents

Abstract

PURPOSE:To aim at smoothly draining rain water and at preventing hot air from entering into the passenger's compartment from the engine room, by draining rain water having entered into an air-intake box, from a drain port formed in a partition wall and provided therein with an one-way valve after the rain water is introduced into a cowl side. CONSTITUTION:Rain water W having entered into air-intake boxes 4, 5 from an air-inlet port 7 flows through a drain port in a partition wall 12 after it flows into a cowl side 3 through a communication port, and is dropped into a wheel house 19 from a hole 20 the outside through a hole 21 in the wheel house 19. Meanwhile, hot air from the engine room 15 is inhibited by means of an one-way valve 14 fitted in a discharge port, from entering into the cowl side 3 in the rear of the partition wall 12. Accordingly, the rain water W may be smoothly drained from the cowl side 3 and further, it is possible to surely prevent hot air from entering into the passenger's compartment from the engine room 15. Further, the partition wall 12 may enhance the strength of the cowl side 3.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the front body structure of an automobile, and more particularly to the structure of a drain port in the cowl side provided at the front of the automobile body.

(Prior Art) As a conventionally known front body/structure of an automobile, that is, a drainage port structure in the cowl side, an air intake box formed in the cowl communicates with a closed cross section in the cowl side. It has already been proposed to form an opening between the outer edge of the cowl and the outer edge of the dungeon panel constituting the bottom surface of the cowl side to serve as a drainage port (see, for example, Japanese Utility Model Application Publication No. 57-47573). .

(Problems to be Solved by the Invention) If the structure is such that the air intake box communicates with the closed section inside the cowl side as in the above-mentioned known example, hot air from the engine room will pass through the inside of the cowl side and reach the inside of the air intake box. There is a risk that the air will be sucked into the vehicle interior by the blower installed in the air intake box. Further, when an opening is formed between the outer edge of the cowl side and the outer edge of the Dasonyu panel that constitutes the bottom surface of the cowl side, the strength of the cowl side itself may be reduced due to the formation of the opening.

The present invention has been made in view of the above points, and provides a drainage structure that prevents hot air in the engine room from entering the air intake box through the inside of the cowl side and prevents the strength of the cowl side from decreasing. The purpose is to

(Means for solving the problems) In the present invention, as means for solving the above problems,
An air intake box formed by a cowl panel and a dunnoy panel and extending in the vehicle width direction is communicated with a closed section extending in the longitudinal direction of the vehicle body formed between a cowl side outer and a cowl side inch through a communication port. In addition, the closed cross section is partitioned into surfaces by a partition wall at a position forward of the communication port, and a drain port is formed in the partition wall for discharging water flowing into the closed cross section from the air intake box. Furthermore, a one-way valve is attached to the drain port, which functions to drain rainwater that has flowed in from the air intake box and to prevent hot air from the Ennon Room from entering the air intake box.

(Function) In the present invention, the following effects can be obtained by the above means.

That is, rainwater that has entered the air intake box flows into the closed section of the cowl side through the communication port and is then discharged to the outside from the drainage port formed in the partition wall, but the hot air in the engine room is A one-way valve attached to the drain port prevents the water from entering the cowl side (in other words, the air intake box).

Further, by forming the partition wall, a joint is formed in the cowl site, and the rigidity of the cowl site is strengthened.

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

In this embodiment, a structure of a joint portion between a cowl 2 and a cowl side 3 that constitute a peripheral portion of an engine compartment 15 in the front portion of a vehicle body I of an automobile will be described (see FIG. 1).

An air intake box 6 extending in the vehicle width direction is formed by the panel 4 and the dash panel 5 (see FIG. 2).

The air intake box 6 is connected to the cowl panel 1.
The air passage forms an air passageway for guiding air taken in from the air intake lower formed in the vehicle interior.

On the other hand, the ll'l a self-purchase 3 consists of a cowl resin outer 8 and a cowl side inner 9, and a closed cross section 10 extending in the longitudinal direction of the vehicle body is formed between the two. Incidentally, the bottom surface of this cowl sight 3 is made up of the above-mentioned DANNOYUPARU 5.

The air intake hook 6 and the closed section 10 are communicated through a communication port 11 formed at the joint between the dash panel 5 and the cowl site inner 9. In this embodiment, the communication port 11 is formed by recessing the lower end of the cowl side inner 9, but it may also be formed by recessing the dash panel 5 side.

Further, in the closed cross section 10, a partition wall 12 is provided at a position in front of the communication port 11 to partition the closed cross section 10 into a surface. The partition wall 12 is fixed to the inner peripheral surface of the cowl side 3 by joining a flange portion I2a formed at the peripheral edge thereof to the inner peripheral surface of the cowl side 3.

A drain port 13 is formed in the lower part of the partition wall 12 for discharging rainwater W flowing into the cowl site 3 from the air intake box 6 through the communication port 11.

The drain port 13 is used to discharge rainwater W flowing from the air intake box 6 and to drain the engine room 1.
A one-way valve 14 is installed which acts to prevent hot air from entering the air intake box 6 from the air intake box 6. In this embodiment, the one-way valve 14 is composed of a rubber-like piece having one end fixed to the upper edge of the drain port 13.

In the drawing, 16 is a front fender outer, 17 is a front fender inner, 18 is a front pillar, 1
Reference numeral 9 indicates a wheel house, and reference numeral 20.21 indicates drainage holes formed in the gussonyu panel 5 and the wheel house 19.

With the above configuration, rainwater W that has entered the air intake hook 6 from the air intake lower can be removed from the communication port 11.
After flowing into the cowl side 3 through the drain port 13 of the partition wall 12, it falls into the wheel house 19 from the hole 20 of the dash panel 5, and is discharged to the outside from the hole 21 of the wheel house 19. Hot air from the room 15 is prevented from entering into the cowl side 3 behind the partition wall 12 by a one-way valve 14 attached to the drain port 13. Therefore, cowl side 3
This makes it possible to drain rainwater W extremely smoothly, and also to reliably prevent hot air from the engine room 15 from entering the vehicle interior through the cowl side 3 and the air intake box 6.

In addition, the cowl side 3 has a closed section 1 inside the cowl side 3.
Since the partition wall 12 that partitions the cowl side 3 into the front and back is provided, joints are formed in the cowl side 3, and the robustness of the cowl side structure is improved.

Note that the present invention is not limited to the above embodiments,
It goes without saying that the structures of the partition walls, one-way valves, etc. can be modified as appropriate without departing from the spirit of the invention.

(Effects of the Invention) As described above, according to the present invention, the air intake box, which is formed by the cowl panel and the dash panel and extends in the vehicle width direction, is in communication with the air intake box through the communication port, and the cowl side outer and the cowl side inner A closed cross section extending in the longitudinal direction of the vehicle body formed between the air intake box and the air intake box is partitioned into front and back by a partition wall at a position forward of the communication port, and rainwater flowing from the air intake box is discharged to a drainage port formed in the partition wall. In addition, a one-way valve is installed that acts to prevent hot air from the engine room from entering the air intake box, so rainwater that has entered the air intake box flows through the communication port into the closed section of the cowl side. The hot air from the engine room flows into the cowl side (
In other words, it effectively prevents hot air from entering the engine room (air intake hook) and allows rainwater to drain smoothly from the cowl side. It has the practical effect of being able to.

First, joints are formed on the cowl side during the formation of the partition wall, which greatly contributes to strengthening the rigidity of the cowl side.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the main parts of the front body structure of an automobile according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view taken along the line ■-■ of FIG. It is a ■-■ enlarged sectional view of. 1... Vehicle body 4... Cowl panel 5... Dash panel 6... Air intake box 8... Cowl side outer 9... Cowl side inner 10...Closed section 11...Communication port 12...Partition wall 13...Drain port 14...One-way valve 15...Engine room Fig. 3

Claims (1)

[Claims] 1. An air intake box formed by a cowl panel and a dash panel and extending in the vehicle width direction, and a closed section extending in the longitudinal direction of the vehicle body formed between a cowl side outer and a cowl side inner are connected through a communication port. The closed cross section is partitioned into the front and back by a partition wall at a position forward of the communication port, and the partition wall has a wall for discharging water flowing into the closed cross section from the air intake box. A drainage port is formed, and a one-way valve is attached to the drainage port to discharge rainwater that has flowed in from the air intake box and to prevent hot air from the engine room from entering the air intake box. An automobile front body structure characterized by: