JP3714382B2 - Ventilation structure of the vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
When a closed space is formed in the vehicle by a door or the like provided in the vehicle, it is desirable to ventilate the interior of the vehicle, and the number of vehicles equipped with an air conditioner or the like is increasing. In a ventilation structure of an automobile or the like, a ventilation port (discharge port) is provided regardless of whether an air conditioner or the like is mounted. The present invention relates to a ventilation structure for a vehicle having a closed space.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there are air vents provided in automobiles that are formed by using side surfaces of a vehicle body. In this case, the height position of the ventilation opening is set so that dirty air in the vehicle is discharged smoothly. If an air conditioner or the like is installed, the position of the air vent is set so that the air adjusted by the air conditioner or the like spreads inside the vehicle, passes through the vent (exhaust port), and is discharged outside the vehicle. .
[0003]
The vehicle described in Japanese Patent Application Laid-Open No. 7-304393 has a concave portion formed in the wall surface by quarter trim of the vehicle interior wall surface, which is used as a trim pocket and has a large number of small holes on the bottom surface and lower side surface thereof as ventilation holes. Yes.
In the vehicle described in Japanese Patent Laid-Open No. 9-86287, a rectangular box projects inward from the luggage inner panel side so as to enter between the two luggage outer panels and the luggage inner panel on the side surface of the vehicle. When it sees, it is in the state by which the recessed part was formed in the luggage inner panel. Another box is attached to the bottom (lower part) of this box and is partitioned by a lid. The first box is detachably provided with a lid with vents (slits), and a vent is also provided on the upper side of the box, and these two vents are used for ventilation inside the car. ing.
[0004]
An example of a conventional vehicle ventilation structure is shown in FIG. The rear side surface of the vehicle body forms a space by the body inner panel 1 and the body outer panel 2, and a thick side surface is formed. The accessory case 3 is mounted in a hole 1a formed in the body inner panel 1.
A ventilation opening (a plurality of holes) 3a is opened on the upper surface of the accessory case 3, and a sound absorbing material 4 is provided at a place where the accessory case 3 is attached. Felt and glass cotton are used as the sound absorbing material 4. Then, after the accessory case 3 is accommodated in the hole 1a, it is fixed by the quarter trim 5, so that the sound absorption of the interior of the vehicle interior is increased, and the feeling of the rear seat is improved. The accessory case 3 includes a concave box 6 installed in a hole 5a formed in the quarter trim 5, and a trim cover 7 that closes a lower portion of the concave box 6, and an upper portion serves as an outlet (accommodating port).
[0005]
The air in the vehicle is ventilated by exiting from the vent 3a on the upper surface of the accessory case 3, and the sound absorbing material 4 provides a soundproofing effect.
[0006]
[Problems to be solved by the invention]
However, since the air flow path exits from the ventilation port 3a on the upper surface of the accessory case 3 and is immediately discharged to the outside, noise is easily transmitted and it is difficult to maintain the interior temperature. In addition, as described above, in the configuration where a small number of small holes are opened in the bottom surface and the lower side surface of the trim pocket to be utilized, the air flow path becomes long, but ventilation is not sufficient when small items are accommodated, In addition, uncomfortable feelings due to sudden fluctuations in the internal pressure of the vehicle when the door is opened and closed are caused.
In addition, when the trim cover 7 is attached to the quarter trim 5 due to the structure, it takes time to assemble this portion, and it is necessary to assemble the line or the like.
[0007]
It is an object of the present invention to provide a vehicle ventilation structure that improves sound insulation by passing around a passage of air discharged from an accessory case incorporated in a side surface of a vehicle body and improves the assemblability of the portion. .
[0008]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention , a space portion is provided by a body inner panel and a body outer panel, and a quarter trim in which a box-shaped accessory case is fixed is put on the body inner panel. The accessory case is inserted into the space through a hole formed in the body inner panel, a trim cover is provided at the lower part of the front surface of the accessory case, and an accessory storage opening is provided at the upper part, and the ceiling part of the accessory case is provided. In the vehicle vent structure provided with a vent hole in the vehicle, on both sides of the hole formed in the body inner panel, a cover member having an opening on the front surface and the bottom surface is attached to the side surface on the body outer panel side of the body inner panel , Attaching a sound absorbing material to the inner surface of the cover member and accommodating the accessory case inside the cover member, and an outer surface of the accessory case; A first air passage is provided between the cover member and the inner surface of the cover member, and a second air passage is provided between the outer surface of the cover member and the inner surface of the body outer panel. The air taken into the interior of the accessory case flows upward, escapes from the ventilation port of the accessory case, then reverses along the lower surface of the ceiling portion of the cover member, and passes through the first ventilation path. It flows downward, reverses again along the lower end of the rear wall of the cover member, flows upward through the second ventilation path, and then discharged to the outside .
[0009]
According to a second aspect of the present invention, the rear wall of the cover member disposed between the accessory case and the body outer panel is inclined to the front side, and the opening area of the bottom surface is larger than the area of the ceiling portion of the cover member. wherein the widely set only.
[0010]
Therefore, when the accessory case is a box shape, the upper part of the side facing the vehicle inside is provided with a receiving part at the lower part as an accommodation port (outlet), but the box-like one with the upper part on the side as it is as an opening, There are two types in which a concave is formed on the side of the concave box having a full side opening, and an opening is formed on the upper side. Either can be used here. Further, the accessory case and the cover member are assembled separately to make it easy to attach the sound absorbing material. Further, the cover member is made larger than the opening surface of the hole of the body inner panel to prevent the function from being deteriorated.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. As shown in FIG. 4, the body inner panel 1 and the body outer panel 2 are bonded to each other at the rear side surface of the vehicle body, and the cover member 8 and the concave box 6 are inserted from the hole 1 a formed in the body inner panel 1. At the same time, the accessory case 3 is formed on the side surface of the vehicle body by covering the quarter trim 5 and the trim cover 7.
For ventilation in the vehicle, ventilation holes (a plurality of holes) 3a opened on the upper surface of the accessory case 3 are used.
[0012]
The cover member 8 includes left and right side walls 8a, a rear wall 8b, a ceiling portion 8c, and a bent portion 8d at the top of the front surface. The left and right side walls 8a are provided with flanges 9, and the rear wall 8b is inclined to the front side. It has become. Moreover, the felt 4 is stuck inside as a sound-absorbing material.
As shown in FIGS. 2 and 4, when the cover member 8 is attached to the body inner panel 1, the cover member 8 is tilted through the hole 1a of the body inner panel 1 and inserted from the ceiling portion 8c, and at a fixed position (FIG. 1). Fix it. Thereby, the front and the lower part are opened. An air passage is also formed between the cover member 8 and the body outer panel 2. In addition, in such an installation method, even if the vertical dimension of the cover member 8 is larger than the hole 1a of the body inner panel 1, it can be attached.
[0013]
Next, the concave box 6 is attached in alignment with the hole 5 a formed in the quarter trim 5, and the trim cover 7 is put on the lower part of the concave box 6 to form the accessory case 3. A vent hole 3a is opened on the upper surface of the concave box 6 for use in ventilation.
As shown in FIG. 1, by attaching the quarter trim 5 to the body inner panel 1, the accessory case 3 is installed inside the body inner panel 1, and the ventilation path is also opened. That is, the air in the vehicle enters from the accommodation opening of the accessory case 3 and passes through the ventilation port 3a of the ceiling, is guided by the cover member 8 and flows below the accessory case 3, and then the air is discharged to the outside. Become.
[0014]
Therefore, the air flow is smooth even if the route meanders, and the reflected sound and the like are absorbed by the felt 4, so that the sound insulation is improved and the comfort in the vehicle is improved. The graph shown in FIG. 3 is a summary of the relationship between sound pressure and frequency by measuring the noise in the vehicle running at a constant speed, with the dotted line showing the conventional product and the solid line showing the sound insulation effect according to the present invention.
In addition, the uncomfortable feeling at the time of opening and closing the door is also eliminated, and air having a temperature difference is trapped in the upper part of the cover member 8 and becomes a trap, which can improve the efficiency of air conditioning.
Further, in the assembly procedure, attaching the accessory case 3 and the cover member 8 to the quarter trim 5 means that when the quarter trim 5 is attached to the body inner panel 1 thereafter, the cover member 8 has the shape of the hole 1a of the body inner panel 1. Since it does not fit and cannot be tilted, the assembly work takes time. Moreover, when changing the shape of the body side from this, cost starts. In the present invention, the workability is improved by attaching the cover member 8 to the body side first and then attaching the quarter trim 5 provided with the accessory case 3 thereafter. Therefore, the cover member 8 serves as a cover for the accessory case 3 and can block noise by meandering the ventilation path and the sound absorbing material.
[0015]
【The invention's effect】
The present invention is configured as described above, and by attaching the cover member to the body inner panel, a ventilation path can be formed between the cover member and the body outer panel, and the quarter trim having the accessory case is attached to the body inner panel. By attaching to, the ventilation path is made between the accessory case upper part and the cover member, and the ventilation structure with good workability is obtained. Moreover, noise can be attenuated by the long meandering path formed. Further, the sound insulation is improved by attaching a sound absorbing material to the inside of the cover member. Thereby, the comfort in a vehicle is improved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a vehicle ventilation structure according to the present invention.
FIG. 2 is a cross-sectional view illustrating a process of attaching the cover member having the ventilation structure shown in FIG.
FIG. 3 is a graph showing the effect of the vehicle ventilation structure shown in FIG. 1;
FIG. 4 is a development view of a vehicle ventilation structure according to the present invention.
FIG. 5 is a development view of a conventional vehicle ventilation structure.
[Explanation of symbols]
1 Body inner panel
1a hole 2 body outer panel 3 accessory case
3a Ventilation port 4 Sound absorbing material 5 Quarter trim 8 Cover member

Claims (2)

A space is provided by a body inner panel and a body outer panel, and the body inner panel is covered with a quarter trim to which a box-shaped accessory case is fixed, and the accessory case is inserted into the space part through a hole formed in the body inner panel. In the vent structure of the vehicle, the trim cover is provided at the lower part of the front of the accessory case and the accessory storage port is provided at the upper part, and the ventilation part is provided at the ceiling of the accessory case.
At both sides of the hole formed in the body inner panel, a cover member having a front surface and a bottom surface is attached to the side surface of the body inner panel on the body outer panel side, and a sound absorbing material is attached to the inner surface of the cover member and the cover member The accessory case is housed inside, and a first ventilation path is provided between the outer surface of the accessory case and the inner surface of the cover member, and between the outer surface of the cover member and the inner surface of the body outer panel. A second ventilation path is provided, and air taken into the accessory case from the storage port of the accessory case flows upward and exits from the ventilation hole of the accessory case, and then the ceiling portion of the cover member. Reverses along the lower surface of the cover, flows downward through the first ventilation path, reverses again along the lower end of the rear wall of the cover member, and passes through the second ventilation path. Ventilation structure of a vehicle characterized in that it is discharged to the outside after flowing upward. The back wall of the cover member disposed between the accessory case and the body outer panel is inclined to the front side, and the opening area of the bottom surface is provided wider than the area of the ceiling portion of the cover member. The ventilation structure of the vehicle according to claim 1 .

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