JPS6220042B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilation structure for an automobile, and particularly to a structure that is effective when applied to a vehicle equipped with a back door such as a van-type automobile.

Conventionally, the structure of a vehicle equipped with a back door was
To explain from the drawings based on FIG. 3, 1 is a roof panel, (BD) is a back door composed of a back door inner panel 5 and a back door outer panel 3, which can be opened and closed on the vehicle body via a hinge not shown. It is installed, and 2 is the back door (B.
D) A weather strip placed on the edge of the opening seals the interior and exterior of the vehicle by coming into contact with the back door inner panel 5.

This back door inner panel 5 has a plurality of air intake ports 6 provided on the lower side of the rear window panel 4 to take in air from inside the vehicle.
As shown in Fig. 3, on both sides of the back door (BD), there is a weather strip 2 of the back door inner panel 5 on the outside of the vehicle, and air inside the vehicle that is taken in from the air intake port 6 on the vehicle body side. A plurality of air exhaust ports 7 are provided to discharge air to the outside of the vehicle. 8 is a rear floor panel, 9 is a floor member which is a strength member in the vehicle width direction, and the floor member 9 is a rear side inner panel 13 and a rear side outer panel 1 at the back door (BD) opening edge of the vehicle body.
4 and is connected to the lower end of the back door (BD) opening edge. In the figure, 10 is a rear bumper, and 12 is a weather strip that seals between the rear side window panel 11 and the vehicle body.

In such a conventional structure, the air inside the vehicle is discharged to the outside of the vehicle when the air inside the vehicle is guided to the air intake port 6 via the interior side of the roof panel 1 and the rear window panel 4, etc., and passes through the inside of the back door BD. The air passes through and is discharged to the outside of the vehicle through air exhaust ports 7 provided on both sides of the back door BD.

However, the conventional configuration described above has the disadvantage that the ventilation efficiency cannot be increased because the horizontal cross-sectional area of the side part of the back door BD is small. If the side cross-sectional area of the back door BD is extended inward in the vehicle width direction as shown, the rear window panel 4 will have to become smaller, resulting in poor rear visibility. In addition, since the air intake port 6 is provided below the rear window panel 4, the air inside the vehicle that is guided to the air intake port 6 does not flow along the rear side window panel 11, which is effective in preventing fogging of the rear side window panel 11. I couldn't have expected it. Furthermore, since the air outlet 7 faces the flow path of rainwater etc. during rainy weather, rainwater etc. can easily enter the inside of the back door BD, which poses a quality problem.
This tendency was noticeable when the air outlet 7 etc. were made larger in an attempt to improve ventilation efficiency.

The present invention was made in view of the above-mentioned conventional problems, and provides a structure that improves ventilation efficiency and prevents fogging of wind panels, especially rear side window panels, and does not adversely affect rear visibility. In order to achieve this object, the first invention provides a back pillar inner panel and a back pillar outer panel in the shape of a box in horizontal section on both sides in the vehicle width direction near the back door. A rear fender panel is disposed on the outside of the exhaust duct to form a two-layer structure, and an air intake port is provided on the lower side of the back pillar inner panel in the vehicle interior. At the same time, an air outlet is provided on the outside of the vehicle interior of the back pillar outer panel and above the two-layer structure for discharging the interior air taken in from the air intake port to the outside of the vehicle interior. In the second invention, both left and right end portions of a floor member having a box-like vertical cross section, which is disposed in the vehicle width direction on the floor surface near the back door, are attached to back pillars which are disposed on both sides in the vehicle width direction near the back door. Connected in communication with an exhaust duct formed in a box-like horizontal section by the inner panel and the back pillar outer panel,
A rear fender panel is disposed on the outside of the exhaust duct to form a two-layer structure, and an air intake port is provided in a predetermined portion of the floor member, while a rear fender panel is provided on the outside of the vehicle interior of the back pillar outer panel. The gist of the present invention is that an air outlet is provided above the two-layer structure for discharging the cabin air taken in from the air intake to the outside of the cabin.

Embodiments of the present invention will be specifically described below based on the drawings. Incidentally, the same parts as in the prior art are given the same reference numerals, and the explanation thereof will be omitted.

4 to 7 show a first embodiment of the present invention, and a backdoor BD is composed of a backdoor inner panel 5 and a backdoor outer panel 3, and can be opened and closed on the vehicle body via a hinge (not shown). installed on. On both sides in the vehicle width direction near the back door BD on the vehicle body side, there is a back pillar inner panel 2 which is a vertically strong member with a box-like horizontal section.
3 and a back pillar outer panel 24 is provided, and a rear fender panel 26 is disposed on the outside of the vehicle through a rear fender extension panel 25. There is. Therefore, a two-layer structure including a back pillar outer panel 24 and a rear fender panel 26 is formed on the vehicle outer side of the air flow passage 27 of the exhaust duct 40.

An air intake port 19 is provided on the lower side of the back pillar inner panel 23 inside the vehicle interior, while an air outlet 33 is provided on the upper side outside the vehicle interior of the back pillar outer panel 24 and above the two-layer structure. It is being A drain plate 30 is installed in the air outlet 33 to prevent rainwater, etc. flowing into the air outlet 33 from outside the vehicle from directly entering the inside of the vehicle.
The other peripheral edge of the draining plate 30 is fixed to the back pillar outer panel 24 on the inner side so that the upper side is open. Reference numeral 22 denotes a trim member disposed on the inside of the vehicle, and a plurality of slits 22a are formed at positions corresponding to the air intake ports 19. Further, 34 is a finisher that hides the air outlet 33 from the outside of the vehicle interior, and 32 is a rear side window panel.

Next, the flow of the vehicle interior air W is such that the vehicle interior air W taken in from the air intake port 19 provided at the lower side of the vehicle interior of the back pillar inner panel 23 passes through the air flow passage 27 of the exhaust duct 40. air outlet 3 opened in the back pillar outer panel 24
3, he was led out of the car. Since the air intake ports 19 are provided on both sides in the vehicle width direction near the back door, when the air inside the vehicle is taken into the air intake ports 19, it is blown against the rear window panel and the rear side window panels 32, so that the anti-fogging effect is reduced. increase In addition, the air outlet 33 is
There is no possibility that the water that is directly invading will flow directly inward.

Furthermore, a back pillar outer panel 24 and a rear fender panel 26 are located on the outside of the exhaust duct 40.
Since a two-layer structure is formed by the above, it is possible to prevent dew condensation from occurring on the inner wall surface of the exhaust duct 40 due to the temperature difference between the outside and outside of the vehicle when warm air inside the vehicle passes through. . Furthermore, the back door BD side can have the same structure as before, so it does not impede rear visibility. Furthermore, since the exhaust duct 40 has a large horizontal cross-sectional area, ventilation efficiency can be greatly improved.

8 to 12 show a second embodiment of the present invention. In this embodiment, both left and right ends of a floor member 9, which is a box-shaped vertical cross-sectional strength member disposed in the vehicle width direction, are shown. The exhaust duct 40 is connected to an exhaust duct 40 formed in a box shape in horizontal section by a back pillar inner panel 23 and a back pillar outer panel 24 arranged on both sides in the vehicle width direction near the back door. A rear fender panel 26 is disposed on the outside of the vehicle via a rear fender extension panel 25. Therefore, even in the second embodiment, the back pillar outer panel 24 and the rear fender panel 2 are located outside the air flow passage 27 of the exhaust duct 40.
A two-layer structure with 6 is formed. Further, while the cabin air intake port 35 is provided at a predetermined portion of the floor member 9, an air exhaust port 33 and a drain plate 30 are provided at the upper side of the back pillar outer panel 24 outside the cabin and above the two-layer structure. It is provided. In this embodiment, the air Y in the vehicle interior is taken in through the air intake port 35, passes through the floor member 9, and then passes through the air flow passage 27 of the exhaust duct 40 and is then returned to the back pillar outer panel 24.
The air is guided to the outside of the vehicle through an air exhaust port 33 opened in the air.

In the second embodiment, since the cross-sectional area of the floor member 9 serving as an air flow path is large, there is an advantage that the ventilation efficiency is greatly improved. Furthermore, by changing the opening position of the air intake port 35, the air flow path within the vehicle interior can be changed, thereby increasing the degree of freedom in design.

As explained above, according to the present invention, an exhaust duct is formed by arranging a back pillar inner panel and a back pillar outer panel in a box shape in horizontal section, and a rear fender panel is arranged on the outside of the exhaust duct. A layered structure is provided, and an air intake port is provided at the lower side of the back pillar inner panel in the vehicle interior, while an air outlet is provided at the outer side of the vehicle interior of the back pillar outer panel and above the two layer structure section. (first invention), and both left and right end portions of the floor member are communicated and connected to the exhaust ducts disposed on both sides in the vehicle width direction,
A vehicle interior air intake port is provided at a predetermined portion of the floor member, and the vehicle interior air taken in from the air intake port is provided outside the vehicle interior of the back pillar outer panel and above the two-layer structure portion to the vehicle interior. Since the configuration is provided with an air exhaust port (second invention), the following effects are brought about. In other words, since the cross-sectional areas of the exhaust duct and the floor member serving as air flow paths are large, it is possible to improve the air ventilation efficiency and to obtain a ventilation structure that does not impair rear visibility. In particular, since the air flow path is formed by using the back pillars and floor members that make up the vehicle body, there is no need to add new components such as ducts, and there is an effect that there is no increase in cost or weight. . In particular, in cases where an air intake port is provided on the floor member side, by changing the setting position of the air intake port, the air flow path within the vehicle interior can be changed appropriately. First, the anti-fogging effect of the rear side window panel can be improved.

Furthermore, in the present invention, since the rear fender panel is disposed on the outside of the vehicle of the exhaust duct which is formed in the shape of a box in horizontal cross section to form a two-layer structure, the inner wall surface of the exhaust duct is It also has the advantage of preventing dew condensation caused by temperature differences between the inside and outside of the vehicle, and increasing the rust prevention effect of exhaust ducts, making it effective when used primarily in the ventilation structure of van-type vehicles. It is.

[Brief explanation of the drawing]

Fig. 1 is a rear perspective view of the conventional structure of the automobile, Fig. 2 is an explanatory sectional view taken along A-A of the same, and Fig. 3 is B of the same.
4 is an explanatory side view of the rear of the vehicle showing the first embodiment of the present invention, FIG. 5 is an explanatory sectional view of the same, FIG. 6 is an explanatory sectional view of the same, and FIG. 8 is a rear perspective view of a vehicle showing a second embodiment of the present invention, FIG. 9 is an explanatory sectional view of the same, FIG. 10 is an explanatory sectional view of the same, and FIG. An explanatory cross-sectional view of XI and FIG. 12 show a perspective view of essential parts. 9...Floor member, 19...Air intake,
23... Back pillar inner panel, 24... Back pillar outer panel, 26... Fender panel, 33... Air exhaust port, 40... Exhaust duct.

Claims (1)

[Claims] 1. An exhaust duct is formed by arranging a back pillar inner panel and a back pillar outer panel in a box shape in horizontal section on both sides in the vehicle width direction near the back door, and a rear fender panel is provided on the outside of the exhaust duct. is arranged to constitute a two-layer structure part, and an air intake port is provided on the lower side of the vehicle interior of the back pillar inner panel, while an air intake port is provided on the outside of the vehicle interior of the back pillar outer panel and of the two-layer structure part. A ventilation structure for an automobile, characterized in that an air outlet is provided at an upper position for discharging the air inside the vehicle taken in from the air intake to the outside of the vehicle. 2. Both left and right ends of a floor member having a box-like vertical cross section arranged in the vehicle width direction on the floor near the back door are connected to a back pillar inner panel and a back pillar outer panel arranged on both sides in the vehicle width direction near the back door. Therefore, it is connected in communication with an exhaust duct formed in the shape of a box in horizontal section, and a rear fender panel is disposed on the outside of the exhaust duct to constitute a two-layer structure, and a predetermined portion of the floor member is connected to the rear fender panel. An air intake port is provided in the vehicle interior, and an air discharge port is provided outside the vehicle interior of the back pillar outer panel and above the two-layer structure for discharging the interior air taken in from the air intake port to the outside of the vehicle interior. An automobile ventilation structure characterized by: