JPH06344947A - Outside air introducing device for automobile - Google Patents

Abstract

PURPOSE:To provide an outside air introducing device which provides the high workability in the assembly and disassembly for a body and effectively suppresses the intrusion of rainwater, etc. CONSTITUTION:An upper dash cover 7 which covers the front upper surface part of a nearly U shaped space part 4 and a lower dash cover 8 which covers the front surface part are arranged in front of a dash panel 3. The upper dash cover 8 is constituted integrally of an upper dash cover part 7A as the covering for the front upper surface part of the nearly U shaped space 4 and an air duct part 7B for introducing the outside air which is suspended on the upper dash cover part 7A. Further, in the air duct part 7B, a water discharge box 12 is installed in a suspended state. The outside air taken into the air duct part 7B is allowed to flow into an air conditioner unit 5 through an outside air effluence port 10 in the rear surface part from a ventilating opened port 13 at the side surface part of the water discharge box 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle outside air introduction device for introducing outside air into a vehicle, and more particularly, a dash panel for partitioning the engine room and the room has a substantially U-shaped cross section open to the engine room side. The present invention relates to an outside air introduction device suitable for an automobile having a structure in which an opening of the substantially U-shaped space is formed and is covered by a dash cover arranged in front of the dash panel.

[0002]

2. Description of the Related Art Conventionally, as shown in a perspective view of FIG. 12 and a cross-sectional view of FIG. 13 (corresponding to line XX of FIG. 12), a dash panel disposed between an engine room 41 and a room 42. There is known a structure in which 43 is formed into a substantially U-shaped cross section that opens toward the engine room. According to such a structure, the dash panel 43 and the front pillar 46 are
It is possible to increase the joint length with the vehicle body and obtain a vehicle body front structure with high vehicle rigidity.

A dash upper cover 47 and a dash lower cover 48 are arranged on the upper surface and the front surface of the dash panel 43 so as to cover the opening of the substantially U-shaped space 44. When such a structure is adopted, the partition wall between the engine room 41 and the room 42 has a double structure, and sound insulation and heat insulation are improved. The rear end of the dash upper cover 47 is sandwiched between the upper ends of the dash panel 43 via a sealing material 49, and the front end thereof is fixed by a bolt 52 to a dash cover bracket 51 which is horizontally mounted between the left and right apron upper members 50. Has been done. Also,
An upper end of the dash lower cover 48 is fixed to the dash cover bracket 51 by a bolt 52, and a lower end of the dash lower cover 48 is provided with a stud bolt 53 provided on a vertical lower surface of the dash panel 43.
It is fixed by a nut 54.

Further, the substantially U-shaped space 44 is used as a storage space for an air conditioning unit 45 (a case in which air conditioners such as an evaporator, a heater core, and a blower are housed), and outside air is introduced into the air conditioning unit 45. This is done using the air duct 55. The air duct 55 for introducing the outside air is arranged to extend in the vertical direction between the dash panel 43 and the dash lower cover 48, and has an outside air intake 56 in the upper part and an outside air flow outlet 57 leading to the air conditioning unit 45 in the middle rear part. , And drain ports 58 are provided below.

Therefore, the gap between the windshield glass 59 and the engine hood 60 and the dash upper cover 4
The outside air taken in through the opening 7 is sent from the outside airflow outlet 57 to the air conditioning unit 45 through the air duct 55 as shown by the solid arrow. Further, rainwater, washing water, and the like that have flowed in together with the outside air are drained to the outside of the vehicle through the lower drainage port 58 as indicated by the broken line arrow. In the figure, 59 is a windshield glass, 60 is an engine hood, 61 is a dash lower panel, 62 is a steering gear box support, and 63 is a front floor.

[0006]

Therefore, in the above-described conventional structure, the body is assembled by first assembling the air duct 55 and then the dash upper cover 47 and the dash lower cover 48 in sequence. In addition, the removal of the air conditioning unit 45 for maintenance is performed in the reverse order. However, there are many man-hours for assembling and dismounting, which causes a problem in workability. In addition, there is a possibility that a part of rainwater or the like that has flown in with the outside air from the outside air inlet 56 may enter the air conditioning unit 45 via the air duct 55, which is problematic in terms of rust prevention of the air conditioning unit 45 and maintenance of the air conditioning performance.

In view of the above-mentioned problems, therefore, the present invention should solve the problem of providing an outside air introducing device which has a high workability of assembling and disassembling to a body and which can effectively prevent intrusion of rainwater and the like. This is a technical issue.

[0008]

In order to solve the above problems, the present invention is configured as follows. That is, according to the invention of claim 1, the dash panel for partitioning the engine room and the room is formed into a substantially U-shaped cross-section opening to the engine room side, and the opening of the substantially U-shaped space is the dash panel. An outside air introduction device for a vehicle having a structure covered by a dash cover arranged in the front, wherein the dash cover includes a dash upper cover that covers a front upper surface portion of the substantially U-shaped space and a substantially U-shaped space. A dash lower cover that covers the front surface portion, wherein the dash upper cover is a dash upper cover portion that covers the front upper surface portion of the substantially U-shaped space, and an air duct for introducing outside air that hangs down on the dash upper cover portion. And an air duct part,
The upper part has an outside air intake port, the lower part has a drain port, and the vertical wall surface has an outside air flow outlet leading to the air conditioning unit.
A water removal box was suspended in the interior thereof, and this water removal box was provided with a ventilation opening on the vertical wall surface and an outflow opening connected to the outside airflow outlet, and a drainage opening on the bottom surface. It is characterized by that.

According to a second aspect of the present invention, a dash panel for partitioning the engine room and the room is formed into a generally U-shaped cross section that opens toward the engine room, and the opening of the substantially U-shaped space is the dash panel. An outside air introducing device for an automobile having a structure covered by a dash cover disposed in front of the dash cover, wherein the dash cover covers a front upper surface portion of the substantially U-shaped space and a substantially U-shaped space. Of the dash lower cover for covering the front surface of the dash upper cover, the dash upper cover portion as a front upper surface portion cover of the substantially U-shaped space, and for introducing the outside air depending on the dash upper cover portion. An air duct part is integrally provided, and the air duct part has an outside air intake port at an upper part and a drain port at a lower part,
Each of the vertical wall surfaces is provided with an outside air outlet, and the outside air outlet is provided with an outside air guide passage for guiding the outside air upward and then sending the outside air to the air conditioning unit.

According to the third aspect of the present invention, the dash panel for partitioning the engine room and the room is formed in a substantially U-shaped cross section that opens toward the engine room, and the opening of the substantially U-shaped space is the dash panel. An outside air introducing device for an automobile having a structure covered with a dash cover arranged in front of the dash cover, wherein the dash cover is a dash upper cover part as a front upper surface part cover of the substantially U-shaped space, and the dash upper. A dash lower cover part as a front part cover of the substantially U-shaped space extending downward continuously to the front end edge of the cover part, and an air duct part for introducing outside air hanging on the dash upper cover part. In addition, the duct part is provided with an outside air intake port in the upper part, and the bottom surface thereof is a stepped bottom surface. Attached includes a drain outlet in the lower bottom surface of the bottom surface, the vertical wall surface continuous with the upper bottom surface is characterized by having a fresh air outlet communicating with the air conditioning unit.

[0011]

In the outside air introducing device for a vehicle according to the invention of claim 1, which is configured as described above, the dash upper cover portion as the front upper surface portion cover of the substantially U-shaped space of the dash panel and the air duct for introducing the outside air. Since the parts are integrated, the man-hours for assembling or removing the body are reduced. Further, the outside air taken into the air duct portion flows into the water removal box from the ventilation opening of the water removal box, and then flows into the air conditioning unit side through the outflow opening of the vertical wall surface and the outside airflow outlet of the air duct portion. . Then, the rainwater and the like that have flowed into the air duct portion together with the outside air flow down along the inner wall surface of the air duct portion, and most of it is drained to the outside of the vehicle from the lower drain port. In this case, since the water removal box is suspended, the entry of water from the ventilation opening is effectively blocked, and even if some water enters the water removal box from the ventilation opening, Flows down from the drainage opening on the bottom surface of the water removal box and is drained to the outside of the vehicle through the drainage port of the air duct.

Further, in the outside air introducing device for a vehicle according to the invention of claim 2, as in the case of the invention of claim 1, the dash upper cover part and the outside air as a front upper surface part cover of the substantially U-shaped space of the dash panel Since the air duct for introduction is integrated, the number of man-hours for assembling or removing the body is reduced. Then, the outside air taken into the air duct section is turned from the outflow opening of the vertical wall surface of the air duct section to the U-shape through the outside air guide path and then flows into the air conditioning unit side. Therefore, rainwater and the like that have flowed into the air duct portion together with the outside air are effectively prevented from entering the air conditioning unit side, and are drained to the outside of the vehicle from the drain port of the air duct portion.

Further, in the outside air introducing device for an automobile according to the third aspect of the present invention, a dash upper cover portion as a front upper surface portion covering the substantially U-shaped space of the dash panel, an air duct portion for introducing outside air, and a substantially U-shaped air duct portion. Since the dash lower cover part as a front part cover of the character space and the air duct part for introducing the outside air are integrated, the number of man-hours for assembling or removing the body is further reduced. Then, the outside air taken into the air duct portion flows into the air conditioning unit side through the outside air flow outlet, while the rainwater that has flowed in together with the outside air flows down along the inner wall surface of the air duct portion and drains out of the vehicle from the drain port. To be done. In this case, since the bottom surface of the air duct is formed in upper and lower two steps, the drain hole is provided in the lower bottom surface, and the outside airflow outlet is set in the vertical wall surface on the upper bottom surface side, the infiltration of water to the air conditioning unit side is effective. Be blocked.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. First, a first embodiment of the present invention will be described with reference to FIGS. In the drawings, arrow UP indicates the vehicle upper side, FR indicates the vehicle front side, and LH indicates the vehicle left side. FIG. 1 is a vertical cross-sectional view of the front portion of the vehicle body (corresponding to line XX in FIG. 12), showing an outside air introducing device. Also, FIG.
Is a sectional view taken along the line YY of FIG. 1, and FIG. 3 is a sectional view taken along the line ZZ of FIG. The outside air introduction device according to the present embodiment is intended for an automobile having a structure in which a dash panel 3 that partitions the engine room 1 and the room 2 is formed in a substantially U-shaped cross-section that opens to the engine room 1 side. In the substantially U-shaped space 4 of the dash panel 3, a case is shown in which an air conditioning unit 5 accommodating air conditioning equipment such as an evaporator, a heater core, and a blower is arranged in a case.

In front of the dash panel 3, a dash cover 6 for covering the opening of the substantially U-shaped space 4 is arranged. The dash cover 6 is a dash upper cover 7 for covering the front upper surface of the substantially U-shaped space 4 as shown in the perspective view of FIG. 4, and a perspective view of FIG. 5 for covering the front part of the substantially U-shaped space 4. It is composed of a dash lower cover 8 as shown in the figure.

The dash upper cover 7 is composed of a dash upper cover portion 7A as a front upper surface cover of the substantially U-shaped space 4 of the dash panel 3 and an air duct portion 7B for introducing outside air into the air conditioning unit 5. There is. The dash upper cover portion 7A is a plate having a plane width capable of covering the front upper surface portion of the substantially U-shaped space 4, and a substantially funnel-shaped air duct portion 7B in a front view hangs down from the lower surface thereof. The dash upper cover portion 7A is provided with the outside air intake 9, and the bottom of the air duct portion 7B is provided with the drain port 1.
1, and an outside airflow outlet 10 is provided on the rear vertical wall surface at a predetermined height from the bottom surface.

Further, the dash upper cover portion 7A has a flange on the peripheral edge thereof, the rear flange 7a is sandwiched by the upper edge of the dash panel 3 via the seal material 15, and the left and right and front flanges 7b are formed. It is fixed to a dash cover bracket 17 on the body side with bolts 16.

A substantially rectangular water removal box 12 is provided at the center of the air duct portion 7B. In this embodiment, the water removing box 12 has a structure in which front and rear vertical surfaces also serve as front and rear vertical wall surfaces of the air duct portion 7B. That is, the water removal box 12 includes an upper surface, left and right side surfaces, and a bottom surface, and the front and rear direction terminals of these surfaces are the air duct portions 7B.
It has a suspended structure that is fixed to the front and rear walls. Further, ventilation openings 13 are provided on both left and right side surfaces of the water removal box 12, and an outflow opening (which also serves as the outside airflow outlet 8 in this embodiment) is provided on the rear surface at a predetermined height from the bottom surface. Is provided with a drainage opening 14.

In the dash upper cover 7 of the present embodiment constructed as described above, the dash upper cover portion 7A for covering the front upper surface portion of the substantially U-shaped space 4 and the air duct portion 7B for introducing the outside air are integrated. Has been formed, in this case,
If possible, it is desirable to integrally form the water removal box 12 as well. Even if integral molding is not possible, it is substantially integrated by retrofitting and is handled as one assembly when mounted on a vehicle.

On the other hand, the dash lower cover 8 is disposed on the front surface of the air duct portion 7B of the dash upper cover 7 and can cover the front portion of the substantially U-shaped space 4 of the dash panel 3 including the duct portion 7B. The vertical surface of the dash cover bracket 1
7 is fixed to the stud bolt 7 by a bolt 16, and the lower flange 8b is erected on the lower edge of the dash panel 3
8 is fastened with a nut 19.

Incidentally, the drainage port 11 of the air duct portion 7B.
Is hung downward through a hole in the lower part of the dash lower cover 8. In FIG. 1, 20 is an engine hood, 21 is a windshield glass, 22 is a hood seal, 23 is a dash lower panel, 24 is a steering gear box support, and 25 is a front floor.

In the outside air introducing apparatus according to the present embodiment constructed as described above, since the dash upper cover 7 has the structure in which the dash upper cover portion 7A and the air duct portion 7B are integrally formed, Since it can be handled as one assembly at the time of attachment, the work man-hour (man-hour for attaching and detaching the bolt 16) at the time of assembling or removing from the body is reduced and the workability is improved.

On the other hand, the outside air taken into the air duct portion 7B from the outside air inlet 9 of the dash upper cover portion 7A as shown by the arrow on the side surface of the water removing box 12 suspended in the air duct portion 7B. It flows into the water removal box 12 through the ventilation opening 13, and is then sent to the air conditioning unit 5 through the outside airflow outlet 10.

Further, the inflow water such as rainwater and washing water that has flowed in from the outside air intake 9 together with the outside air flows down along the inner wall surface of the air duct portion 7B and enters from the ventilation opening 13 of the water removing box 12 suspended in the air. Without doing so, the water is drained out of the vehicle through the drainage port 11. Even if a part of the inflow water enters the water removal box 12 through the ventilation opening 13, the inflowing water flows down from the drainage opening 14 on the bottom surface of the water removal box 12 and the drainage port of the air duct portion 7B. It is drained from 11 to the outside of the car. In the figure, the flow of outside air is shown by a solid line, and the flow of water is shown by a broken line.

Next, an outside air introducing device according to a second embodiment of the present invention will be described with reference to FIGS. 6 and 7. In this embodiment, the outside air introduction passage of the air duct portion 7B in the above-described first embodiment is changed, and basically has a configuration similar to that of the first embodiment. That is, the water removal box 12 in the first embodiment is eliminated, and instead of this, the air duct portion 7B.
The outside airflow outlet 10 is configured to communicate with the air conditioning unit 5 via the outside air guide passage 26 for changing the flow direction. The outside airflow outlet 10 is set on the lower side of the rear vertical wall surface of the air duct portion 7B, and the outside air guide path 26 is formed on the rear side of the rear vertical wall surface so as to communicate with this.

Since the other structures are the same as those of the first embodiment, the same reference numerals are given and the description thereof will be omitted.

Therefore, also in this embodiment, since the dash upper cover 7 has a structure in which the dash upper cover portion 7A and the air duct portion 7B are integrally provided, when assembling and dismounting as in the case of the first embodiment. The work man-hours are reduced. In addition, when the outside air taken into the air duct portion 7B flows into the air conditioning unit 5 side through the outside air guiding path 26, the outside air flows into the air duct portion 7B together with the outside air since the direction of the outside air is changed. Rainwater or the like is drained from the drain port 11 of the air duct portion 7B without entering the air conditioning unit 5 side.

Next, an outside air introducing device according to a third embodiment of the present invention will be described with reference to FIGS. In this embodiment, the dash cover 6 is configured to integrally include a dash upper cover portion 7A, an air duct portion 7B, and a dash lower cover portion 7C. The dash upper cover portion 7A has a plane width for covering the front upper surface portion of the substantially U-shaped space 4 of the dash panel 3 and extends downward continuously from the front end of the dash upper cover portion 7A. The dash lower cover portion 7C has a vertical surface width for covering the front surface portion of the substantially U-shaped space 4, and further the air duct portion 7B.
Is formed in a horizontally long shape on the rear surface of the dash lower cover portion 7C.

The outside air intake 9 is a dash upper cover portion 7.
It is formed on the left or right side of A. Further, the bottom surface of the air duct portion 7B is formed in a stepped shape of two upper and lower steps with the side corresponding to the outside air intake 9 being a lower position, and in this embodiment, the upper and lower stepped bottom surfaces are continuous from the R-shaped inclined surface. Then, the drainage port 11 is formed on the lower side of the stepped bottom surface,
An outside airflow outlet 10 is formed on the rear vertical wall surface on the upper stage side.

Therefore, according to the third embodiment, the outside air introducing device is constituted by one part, and the number of parts is greatly reduced, so that the assemblability to the body is improved and the structure is improved. It is possible to reduce the weight and cost by simplifying. Further, the outside air taken into the air duct portion 7B from the outside air intake 9 is sent to the air conditioning unit 5 via the outside airflow outlet 10. On the other hand, rainwater and the like flowing in along with the outside air flows along the inner wall surface of the air duct portion 7B and is discharged to the outside of the vehicle from the drainage port 11 on the bottom surface of the air duct portion 7B. Since it is set on the upper vertical wall surface, the inflow water is blocked by the step surface and is prevented from entering the hydraulic unit 5.

In the illustrated example, the case where the air conditioning unit 5 is installed in the substantially U-shaped space 4 of the dash panel 3 has been described, but the present invention is not limited to this, and the air conditioning unit 5 is located on the indoor side. It does not matter even if it is the type of car that is placed in the. In short, the outside air introduction device described here is of a type in which the dash panel 3 has the substantially U-shaped space 4, and the dash cover 6 for covering the opening of the substantially U-shaped space 4 is provided. It is applicable to any automobile having a structure provided.

[0032]

As described in detail above, according to the present invention,
Since the dash cover that covers the opening of the substantially U-shaped space of the dash panel and the air duct for introducing the outside air can be integrated, and the number of parts can be reduced, the workability of assembling and removing the body is improved. Moreover, since it is possible to effectively prevent rainwater and the like from entering the air conditioning unit through the air duct, it is not necessary to set a waterproof filter for the air conditioning unit, and the performance of the air conditioning unit can be guaranteed.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a vehicle body front structure having an outside air introducing device according to a first embodiment of the present invention, showing a cross section taken along line XX of FIG.

FIG. 2 is a sectional view taken along line YY of FIG.

FIG. 3 is a sectional view taken along line ZZ of FIG.

FIG. 4 is a perspective view showing a dash upper cover.

FIG. 5 is a perspective view showing a dash lower cover.

FIG. 6 is a vertical cross-sectional view showing a vehicle body front structure having an outside air introducing device according to a second embodiment, showing a cross section taken along line XX of FIG. 12;

FIG. 7 is a rear perspective view showing a dash upper cover according to the second embodiment.

FIG. 8 is a vertical cross-sectional view showing a vehicle body front structure having an outside air introducing device according to a third embodiment, showing a cross section taken along line XX of FIG.

FIG. 9 is a front perspective view showing a dash cover according to the third embodiment.

FIG. 10 is a rear perspective view of the dash upper cover.

FIG. 11 is a front sectional view of the dash cover.

FIG. 12 is a simplified perspective view showing a front portion of a vehicle body having a structure in which a dash panel has a space having a substantially U-shaped cross section.

FIG. 13 is a vertical cross-sectional view showing a conventional vehicle body front portion having a structure in which a dash panel has a space having a substantially U-shaped cross section;
-A cross section along the X-ray.

[Explanation of reference numerals] 1 ... Engine room 2 ... Interior 3 ... Dash panel 4 ... Almost U-shaped space 5 ... Air conditioning unit 6 ... Dash cover 7 ... Dash upper cover 7A ... Dash upper cover 7B ... Air duct 7C ... Dash lower Cover part 8 ... Dash lower cover 9 ... Outside air intake 10 ... Outside air flow outlet 11 ... Drainage port 12 ... Drainage box 13 ... Ventilation opening 14 ... Drainage opening 26 ... Outside air guideway

Front Page Continuation (72) Inventor Mamoru Hozumi 2-1-1 Toyota-cho, Kariya-shi, Aichi Stock Company Toyota Industries Corporation (72) Inventor Hajime Hasegawa 2-chome, Toyota-cho, Kariya-shi, Aichi Stock Company Toyota Inside the automatic loom mill

Claims (3)

[Claims] 1. A dash panel for partitioning an engine room and a room is formed in a generally U-shaped cross-section that opens toward the engine room, and an opening of the substantially U-shaped space is arranged in front of the dash panel. In the outside air introduction device for an automobile, the dash cover covers a front upper surface portion of the substantially U-shaped space and a front surface portion of the substantially U-shaped space. And a dash upper cover, wherein the dash upper cover integrally includes a dash upper cover portion as a front upper surface portion cover of the substantially U-shaped space, and an air duct portion for introducing outside air suspended from the dash upper cover portion. The air duct part has an external air intake port on the upper side, a drain port on the lower side, and an external air flow outlet leading to the air conditioning unit on the vertical wall surface. Each of them is provided with a drainage box suspended in the interior thereof, and this drainage box has a ventilation opening on the vertical wall surface and an outflow opening connected to the outside airflow outlet, and a drainage box on the bottom surface. Outside air introduction device for vehicles equipped with an opening. 2. A dash panel for partitioning the engine room and the room is formed in a substantially U-shaped cross section that opens toward the engine room, and an opening of the substantially U-shaped space is arranged in front of the dash panel. In the outside air introduction device for an automobile having a structure covered by a dash cover, the dash cover covers a front upper surface portion of the substantially U-shaped space and a front surface portion of the substantially U-shaped space. And a dash lower cover, wherein the dash upper cover integrally includes a dash upper cover portion as a front upper surface portion cover of the substantially U-shaped space, and an air duct portion for introducing outside air suspended from the dash upper cover portion. The air duct part is provided with an outside air intake port at an upper part, a drainage port at a lower part, and an outside air flow outlet on a vertical wall surface. In addition, the outside air introduction device for a vehicle, which is provided with an outside air guide path for guiding the outside air to the outside and then sending it to the air conditioning unit at the outside air flow outlet. 3. A dash panel for partitioning the engine room from the inside is formed in a substantially U-shaped cross-section that opens toward the engine room, and an opening of the substantially U-shaped space is arranged in front of the dash panel. An outside air introducing device for a vehicle having a structure covered by a dash cover, wherein the dash cover is a dash upper cover part as a front upper surface part cover of the substantially U-shaped space, and a front end edge of the dash upper cover part. And a dash lower cover part as a front part cover for the substantially U-shaped space extending downward continuously, and an air duct part for introducing outside air hanging from the dash upper cover part. In addition, the duct portion is provided with an outside air intake port on an upper portion thereof, and the bottom surface thereof is a stepped bottom surface. The surface includes a drainage port, the outside air introduction device of a motor vehicle with external air outlet port communicating with the air conditioning unit to a vertical wall surface continuous with the upper bottom side.