JP3770973B2 - Ventilator for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ventilator, and more particularly to a ventilator that is a vehicle in which a passenger compartment and a cargo compartment of a vehicle are not partitioned and exhausts indoor air close to the cargo compartment to the atmosphere side outside the vehicle.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, vehicles that do not partition a so-called passenger compartment and cargo compartment by partitions, as represented by RV vehicles (recreational vehicles) and wagon vehicles including passenger car types, are known.
[0003]
In addition, there is a vehicle body side wall panel that forms such a cargo compartment provided with a ventilation device that exhausts indoor air close to the cargo compartment to the atmosphere (outside the vehicle body).
[0004]
FIG. 6 shows an example of such a vehicle ventilation device. Reference numeral 1 denotes a vehicle body side wall panel including an inner panel 2 and an outer panel 3 positioned on the indoor side. A side rear window glass 5 is provided. In addition, a floor panel 6 is provided in the vehicle body vertical direction midway portion on the cargo compartment side of the vehicle body side wall panel 1, and a part of the rear bumper 7 wraps around from the rear of the vehicle body below the vehicle body on the atmosphere side of the vehicle body side wall panel 1. . In FIG. 6, interior decoration members such as a trunk room trim and a carpet are omitted.
[0005]
The inner panel 2 and the outer panel 3 are formed with a space P by separating the opposing wall surfaces.
[0006]
An intake opening 2a is formed in a portion of the inner panel 2 located on the upper part of the vehicle body from the floor panel 6. A grille 8 is provided on the luggage compartment side of the intake opening 2a, and on the space P side of the intake opening 2a. A fan 10 is provided via the bracket 9.
[0007]
An exhaust opening 3 a is formed in a portion of the outer panel 3 located at the lower part of the vehicle body than the floor panel 6, and a drafter 12 is provided via a bracket 11 on the space P side of the exhaust opening 3 a.
[0008]
On the other hand, a duct 13 is provided between the fan 10 and the drafter 12 to form an exhaust path P ′ that communicates with the fan 10 and is isolated from the space P in an airtight state.
[0009]
The drafter 12 has a one-way valve function that allows the air flow through the exhaust opening 3a from the space P side toward the atmosphere side and blocks the air flow from the exhaust opening 3a from the atmosphere side toward the space P side.
[0010]
Accordingly, when the fan 10 is driven, the air in the passenger compartment close to the cargo compartment is pressurized and sucked from the grille 8 as it is driven, and passes through the exhaust path P ′ in the duct 13 as it is to open the drafter 12 to exhaust the exhaust. The air is discharged from the space between the outer panel 3 and the rear bumper 7 to the atmosphere (outside the passenger compartment) through the opening 3a.
[0011]
[Problems to be solved by the invention]
By the way, in the vehicle ventilation structure configured as described above, the fan 10 and the drafter 12 are connected by the duct 13, and the exhaust path P ′ formed by the duct 13 is isolated from the space P in an airtight state. However, the duct 13 is not only expensive, but, for example, if the front surface of the grill 8 is blocked by luggage, the ventilation performance deteriorates, and the fan 10 cannot be cooled, resulting in failure. There was a problem that could cause Further, when the fan 10 is OFF or broken, there is a problem that the fan 10 becomes a ventilation resistance and the natural ventilation performance deteriorates.
[0012]
In addition, when such ventilation performance or natural ventilation performance deteriorates, for example, due to a temperature difference between the inside and outside of the vehicle interior, water droplets and fogging are likely to occur, and the air conditioner mounted on the vehicle. Even if an attempt is made to remove water droplets or cloudiness by operating the (cooling / heating device), problems such as being unable to be removed easily occur.
[0013]
Further, the fan 10 is driven even when the inside air circulation is performed by the above-described air conditioner, but this inside air circulation is caused by the outside air (atmosphere) being contaminated. This is done to avoid taking it indoors.
[0014]
Accordingly, since the cabin air is not supplied from other parts when the inside air is circulated, the interior ventilation is not practically performed and power consumption is wasted, and only the operation sound of the fan 10 is generated. Has occurred.
[0015]
The present invention has been made in view of the above circumstances, and can realize cost reduction, and can improve the ventilation performance to reduce the burden on the fan, and also improve the natural ventilation performance. An object of the present invention is to provide a vehicle ventilation device that can be used.
[0016]
It is another object of the present invention to provide a vehicle ventilator that can prevent waste of power consumption when circulating inside air.
[0017]
[Means for Solving the Problems]
In order to achieve the above-described object, according to the first aspect of the present invention, a vehicle body side wall panel located in a cargo compartment where the passenger compartment and the cargo compartment are not clearly defined is formed by a closed cross-sectional structure of the inner panel and the outer panel. At the same time, a semi-enclosed space is formed between the panels, and the semi-enclosed space communicates with the cargo compartment through a gap , an intake opening is formed in the inner panel, and an exhaust opening is formed in the outer panel. A fan is attached to the inner panel so as to face the intake opening, and allows air to flow through the exhaust opening from the semi-enclosed space side toward the atmosphere side outside the vehicle and from the atmosphere side to the semi-enclosed space side. Dorafuta to block the flow of air from the exhaust opening is provided towards the Dorafuta is a bracket attached to the exhaust opening, taken up in that open to the bracket Flapper is provided vignetting in opposite to the exhaust opening, it is opened by pressurizing the air sucked luggage compartment side from the intake opening due to the rotation of the fan in the semi-enclosed space, from the exhaust opening The vehicle ventilator is provided with the flapper that discharges air outside the vehicle .
[0018]
The gist of the invention described in claim 2 is that the fan is operated only when the air conditioner is in the outside air introduction state or the outside air introduction / inside air circulation combination state.
[0019]
The gist of the invention described in claim 3 is that the exhaust opening is disposed below the intake opening and substantially at the same position in the vehicle longitudinal direction.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of a vehicle ventilation device of the present invention will be described based on the drawings of FIGS. 1 to 5.
[0021]
FIG. 5 is a schematic perspective view of the rear left side of the luggage compartment of a passenger car type wagon vehicle in which the passenger compartment and the cargo compartment are not clearly defined, as viewed from the indoor side. Note that decorative items such as interior panels and floor carpets are omitted.
[0022]
In FIG. 5, 20 is a vehicle body, 21 is a back door, 22 is a rear window glass of the back door 21, 23 is a vehicle body side wall panel at the rear of the vehicle body, 24 is a side window glass of the vehicle body side wall panel 23, 25 is a floor panel, 26 Is a tire house, and 27 is a rear bumper.
[0023]
As shown in FIG. 1, the vehicle body side wall panel 23 is formed by a closed sectional structure of an inner panel 28 and an outer panel 29, and at the same time, a semi-enclosed space 30 is formed between the panels 28 and 29.
[0024]
An intake opening 28a is formed in a portion of the inner panel 28 that is positioned above the floor panel 25 relative to the vehicle body. A fan 31 is provided on the semi-sealed space 30 side of the inner panel 28 so as to cover the intake opening 28. Furthermore, a grill 32 is provided on the cargo compartment side of the inner panel 28 so as to face the fan 31 and cover the intake opening 28.
[0025]
As shown in FIG. 2, the fan 31 and the grill 32 are coupled so as to sandwich the inner panel 28 by a plurality of screws 33, 33. In FIG. 2, reference numerals 28 b, 28 b, and 31 a, 31 a, and so on are holes through which the screws 33, 33, and the screws 33, 33 are screwed into the grill 32.
[0026]
An exhaust opening 29a is formed in the outer panel 29 at substantially the same position below the intake opening 28a below the vehicle body and in the vehicle longitudinal direction. Further, a bracket 34 having an opening 34a facing the exhaust opening 29a is fixed to the semi-sealed space 30 side of the outer panel 29. Further, the air side of the exhaust opening 29a is covered with a bumper 27 through a predetermined space. The formation positions of the intake openings 28a and the exhaust openings 29a are not limited to the positions disclosed in the present embodiment.
[0027]
The bracket 34 has a flapper 35 that allows the air flow from the exhaust opening 29a toward the atmosphere side from the semi-enclosed space 30 side and blocks the air flow from the exhaust opening 29a toward the semi-enclosed space 30 side from the atmosphere side. A drafter 36 is formed by the bracket 34 and the flapper 35.
[0028]
On the other hand, the fan 31 is driven by the circuit shown in FIG. In FIG. 3, reference numeral 41 denotes a battery, 42 denotes a fan drive switch, 43 denotes whether the air conditioner mounted on the vehicle is in an outside air introduction state, an inside air circulation state, or a combination thereof (an outside air introduction / inside air circulation combination state). Air-conditioning state detection means for detecting, 44 an indicator lamp for recognizing the driving state of the fan 31, 45 a relay, and 46 a motor of the fan 31.
[0029]
The air-conditioning state detection means 43 is, for example, a means for detecting the inside / outside air switching door position of the air conditioner, as shown in FIG. 4A, an inside air circulation switch 47 provided in the air conditioner mounted on the vehicle, As shown in FIG. 4B, whether the inside air circulation state or the outside air introduction state is detected by detecting ON / OFF of the inside air circulation switch 48 and the outside air introduction switch 49 also provided in the air conditioner. It is conceivable to use a detection means.
[0030]
Note that the inside air circulation switch 47 shown in FIG. 4A is for the inside air circulation when it is in the ON state, and the outside air is introduced when it is in the OFF state. 4B, when either one of the inside air circulation switch 48 and the outside air introduction switch 49 is turned on, the other is turned off, or both are turned on (both outside air introduction and inside air circulation combined state). There is something.
[0031]
When the air-conditioning state detecting means 43 detects that the internal air circulation state is not established when the fan driving switch 42 is in the ON state, an exciting current flows through the relay 45, whereby the motor 46 is driven and the fan 31 is driven. Simultaneously with the rotation, the indicator lamp 44 is turned on.
[0032]
Even when the fan drive switch 42 is ON, the motor 46 is not driven and the indicator lamp 44 is not lit when the air-conditioning state detection means 43 detects that the internal air circulation state is only set. It is possible to prevent waste of power consumption when the inside air circulation is performed.
[0033]
In the above configuration, when the fan 31 rotates while satisfying the circuit conditions described above, air flows from the cargo compartment to pressurize the semi-enclosed space 30, and the static pressure of the semi-enclosed space 30 increases. Since the pressure difference from the outside of the vehicle (atmospheric pressure) becomes large, the closed state of the opening 34a by the flapper 35 is released by the pressure (the open state of the drafter 36), and the air from the cargo compartment is shown by arrows a and b in FIG. , C are exhausted outside the vehicle.
[0034]
When the fan 31 is not rotated, the room air on the cargo compartment side enters the semi-enclosed space 30 through a gap (not shown) between the inner panel 28 and the semi-enclosed space 30, and the opening 34 a and the flapper 35. Natural ventilation performance is ensured so as to be discharged to the atmosphere via the exhaust opening 29a.
[0035]
【The invention's effect】
As described above, in the vehicle ventilator according to the present invention, the vehicle body side wall panel located in the cargo compartment where the passenger compartment and the cargo compartment are not clearly defined is formed by the closed sectional structure of the inner panel and the outer panel. At the same time, a semi-enclosed space is formed between the panels, an intake opening is formed in the inner panel, an exhaust opening is formed in the outer panel, and a fan is provided in the inner panel so as to face the intake opening. A drafter that is mounted and that allows the air flow from the exhaust opening toward the atmosphere side from the semi-enclosed space side and blocks the air flow from the exhaust opening toward the semi-enclosed space side from the atmosphere side outside the vehicle is provided. The air in the cargo compartment that is sucked from the intake opening accompanying the rotation of the fan is pressurized in the semi-enclosed space, so that the drafter is opened and the exhaust opening In addition, it is possible to reduce costs by improving the ventilation performance, reducing the burden on the fan, and improving the natural ventilation performance. .
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a main part of a vehicle body, showing an embodiment of a vehicle ventilation device of the present invention.
FIG. 2 is an exploded perspective view of the main part, similarly.
FIG. 3 is a circuit diagram showing fan driving conditions in the same manner.
4A is a front view of the internal circulation switch in a state where the outside air introduction switch of the vehicle air conditioner is also used, and FIG. 4B is a front view of the internal circulation switch and the outside air introduction switch of the vehicle air conditioner. is there.
FIG. 5 is a schematic perspective view of the left rear portion (loading chamber) of a passenger car type wagon vehicle in which the passenger compartment and the cargo compartment are not clearly defined, as viewed from the indoor side.
FIG. 6 is a longitudinal sectional view of a main part of a vehicle body, showing a conventional vehicle ventilation device.
[Explanation of symbols]
23 ... Body side panel 27 ... Bumper 28 ... Inner panel 28a ... Intake opening 29 ... Outer panel 29a ... Exhaust opening 30 ... Semi-enclosed space 31 ... Fan 36 ... Draft

Claims (3)

A semi-sealed space is formed above and at the same time the vehicle body side wall panel and the passenger compartment and the luggage compartment is positioned in luggage compartment that is not expressly partition is formed by a closed cross-section structure of the inner panel and the outer panel between the respective panel, wherein The semi-enclosed space communicates with the cargo space through a gap , an intake opening is formed in the inner panel, an exhaust opening is formed in the outer panel, and a fan is mounted on the inner panel so as to face the intake opening. A drafter is provided that allows air flow from the exhaust opening toward the atmosphere side outside the vehicle from the semi-enclosed space side and blocks air flow from the exhaust opening from the atmosphere side toward the semi-enclosed space side; the Dorafuta is a bracket attached to the exhaust opening, the flapper opposite is provided to the exhaust opening can be opened and closed attached to the bracket, Air aspirated luggage compartment side from the intake opening due to the rotation of the serial fan is opened by pressing in the semi-enclosed space, said flapper for discharging air is formed provided on the outside of the vehicle from the exhaust opening and vehicle ventilating system, characterized in that are. 2. The vehicle ventilator according to claim 1, wherein the fan is operated only when the air conditioner is in an outside air introduction state or an outside air introduction / internal air circulation combination state. 2. The vehicle ventilation device according to claim 1, wherein the exhaust opening is disposed below the intake opening and substantially at the same position in a vehicle longitudinal direction.

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