JPS6021084B2 - automotive ventilation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an automotive ventilation system for ventilating the interior of a vehicle, and more particularly to an electric ventilation system for ventilating the interior of a vehicle while the vehicle is parked.

[Conventional technology]

Conventionally, automobiles are equipped with ventilation systems for use when driving, but these do not operate at all when parked, and when a car is parked outdoors in the hot summer sun, the interior of the car is severely affected by the rays of the sun's rays. This results in a high temperature state, which causes great discomfort to the occupants when boarding the vehicle, and also has the drawback of slowing down the cooling effect of the air conditioner.

Furthermore, if a normal battery is used to operate the electric fan motor of the ventilation system while the vehicle is parked, there is a drawback that if the vehicle is parked for a long time, the battery will become over-discharged and the engine will not be able to start.

Therefore, the inventors of the present invention proposed in Tokubuta Sho 52-53915 (Samurai Gan Sho 53-140731 Publication) that a solar battery is installed in the vehicle body, and when the vehicle is parked, a ventilation blower is operated by the output of the solar battery. We have previously proposed an automotive ventilation system that ventilates the interior of the vehicle without over-discharging the vehicle battery.

[Problem that the invention seeks to solve]

However, according to the inventor's experimental studies, it has been found that the above-mentioned device has the following problems when put into practical use.

That is, because the output of the solar cells is small due to constraints on the solar cell installation space in the vehicle body, the amount of air blown by the ventilation blower is small.

Therefore, in order to prevent the temperature inside the vehicle from rising when the vehicle is parked, it is important to bring as much cold outside air into the vehicle as possible, but when the vehicle is normally parked, the surface of the vehicle body becomes hot due to sunlight. Therefore, when outside air is taken in, the temperature of the outside air increases due to contact with the vehicle body (usually made of steel plates), making it difficult to prevent the temperature inside the vehicle from increasing. Therefore, in view of the above experimental findings, it is an object of the present invention to suppress as much as possible the temperature rise of the introduced air due to contact with the vehicle body, and to effectively perform the ventilation function during parking using a solar cell as a power source.

[Means for solving problems]

In order to achieve the above object, the present invention includes an outside air introduction passage that guides outside air into the vehicle interior, a heat insulating material lined on the inner surface of the outside air introduction passage, an exhaust port that discharges the air inside the vehicle interior to the outside, and a A technical means is adopted in which the vehicle is equipped with an electric blower that generates an air flow from an outside air introduction passageway through the interior of the vehicle to the exhaust port, and a solar cell that is disposed on the vehicle body and drives the electric blower when the vehicle is parked. .

[Effect]

According to the above technical means, the outside air introduced into the vehicle interior can be introduced into the vehicle interior with almost no temperature rise through the outside air introduction passage. It is possible to effectively prevent the temperature inside the vehicle from rising when the vehicle is parked.

〔Example〕

This invention will be described below with reference to embodiments shown in the drawings.

1 and 2, a front window glass 2, a rear window glass 3, a door 4, etc. are attached to a vehicle body 1 of an automobile. A solar cell 7 is installed on the roof of the vehicle body 1 in a state that it is incorporated into a panel 6. This panel 6 is formed into a concave shape by pressing stainless steel or the like.
A solar cell 7 is housed in this recess.

Although not shown in detail, each element of the solar cell 7 is fixed to a printed circuit board made of Bakelite, glass epoxy, or the like, and is electrically connected in series or in parallel. Further, the solar cell 7 is protected by being covered with a transparent acrylic resin plate 8 on the light-receiving surface side. The panel 6 is fixed to a rain gutter part 9 formed on the roof of the vehicle body 1 using mounting fittings 10 so as to leave a slight gap with the roof.
Note that providing this gap is effective in cooling the solar cell 7 and improving output. Next, to explain the ventilation system that ventilates the interior of the vehicle while the vehicle is parked, an outside air introduction row 1 is formed in the front side of the front window glass 2 in the vehicle body 1 of the automobile. One end of an outside air introduction duct 13 for guiding outside air into the vehicle interior is connected.

The other end of the duct 13 is provided with a blow-off grill 14 for blowing out outside air to the front of the vehicle interior. The outside air introduction port 11 and the outside air introduction duct 13 constitute an outside air introduction passage in the present invention, and their inner surfaces are lined with a heat insulating material 12 made of urethane foam, heat insulating rubber, or the like. On the other hand, a ventilation port 15 is provided on the rear side of the vehicle body 1 and serves as an exhaust port for discharging the air inside the vehicle to the outside. An electric blower consisting of a driven fan 17 is provided.

Further, in order to prevent rainwater from entering the vehicle interior from the ventilation row 5, a check curtain 18 made of silicone rubber and having a thickness of approximately 0.2 to 0.5 skin is provided downstream of the electric blower. . Here, the ventilation port 15 is a louver 15a in the vehicle interior.
, louver 15b outside the vehicle and louvers 15a, 15b
The electric motor 16 is electrically connected to the solar cell 7 via a manual switch (not shown).

Note that a blower including a ventilation port 15, a motor 16, a fan 17, and the like are symmetrically provided on both left and right sides of the vehicle body 1. In the above configuration, when a car is parked under the scorching sun during the summer, the window glass is usually sealed to prevent theft, or the window glass is slightly opened as shown in FIG.

Then, when the manual switch is turned on, the electric motor 16 is driven by the electromotive force of the solar cell 7, and the fan 17 is rotated. Therefore, the high temperature air inside the vehicle is
Namely, the louver 15a, the duct 15c, the check curtain 18
, is exhausted outside the vehicle through the louver 15b, while fresh air from outside the vehicle is introduced through the outside air inlet 11, the outside air introduction duct 13, the outlet grille 14, or the closed part of the window glass,
The vehicle interior is ventilated. Since the interior of the vehicle is ventilated in this manner, a rise in temperature within the vehicle interior is prevented even when the window glass is sealed or slightly opened. In particular, when the sun's rays are strong, the temperature inside the vehicle increases to a high degree, but the output of the solar cell 7 also increases, which increases the ventilation capacity, which is extremely advantageous. Moreover, the introduction row 1 that forms the outside air introduction passage
Since the inner surface of the duct 13 is lined with a heat insulating material 12, the introduced air is heated by contact with the steel plate that makes up the vehicle body 1 (which reaches an extremely high temperature of about 80 to 9,000 Celsius when parked in the hot sun), causing a temperature rise. This can be effectively prevented.

This greatly contributes to preventing the temperature inside the vehicle from rising when the vehicle is parked. Further, since the ventilation row 5 and the blower are provided on the external side surface of the vehicle body 1, that is, the so-called roof side, the high temperature air in the upper part of the vehicle interior can be efficiently discharged to the outside of the vehicle, and ventilation can be performed extremely effectively.

Note that the electric motor 16 has a power consumption of about 0.3 to 3 (W), and the solar cell 7 has an output characteristic of 10 (mW/ground) at an illuminance of about 100,000 (Lux), so the total If the light receiving area is 600 (ground), approximately 6 (W) of power can be obtained, which is sufficient to drive the motor 16. In the above embodiment, the air inside the vehicle is discharged to the outside of the vehicle using a blower, but as shown in FIG. 3, the air blower may be used to introduce air from outside the vehicle into the interior of the vehicle.

That is, in the embodiment of FIG. 3, the ventilation row 5
is provided for introducing outside air, therefore the duct 15
c constitutes an outside air introduction passage, and a heat insulating material 20 made of urethane foam or the like is lined on the inner surface of the portion of this duct 15c where the steel plates of the vehicle body become hot when the vehicle is parked, so that the introduced air passes through the steel plates of the vehicle body 1. This prevents it from being heated.

In this example, as well, good ventilation is achieved during parking by introducing outside air into the vehicle interior by a blower installed in the ventilation row 5, and by discharging the air from the vehicle interior to the outside from an outlet (not shown). be able to. [Effects of the Invention] As described above, according to the present invention, when the vehicle is parked, the electric blower is driven by a solar battery to introduce outside air into the passenger compartment from the outside air introduction passage, and to exhaust air from the passenger compartment to the outside from the exhaust port. By discharging the air to the outside air, the interior of the vehicle can be well ventilated without over-discharging the battery.In addition, since the outside air introduction passage is lined with insulation material, the outside air introduction passage can be ventilated well. Even if the vehicle body is heated to a high temperature when the vehicle is parked, the introduced air can be prevented from being heated, thereby effectively preventing the temperature inside the vehicle from increasing when the vehicle is parked.

[Brief explanation of drawings]

1 and 2 are a partial sectional side view and a partial sectional rear view showing one embodiment of the present invention, respectively, and FIG. 3 is a partial sectional view showing a main part of another embodiment of the invention. DESCRIPTION OF SYMBOLS 1...Vehicle body, 7...Solar cell, 11...Outside air inlet, 12, 20...Insulating material, 13...Outside air inlet duct, 15...Ventilation port (Fig. 1, In the example shown in Fig. 2, the exhaust port is configured.), 16, 17... Electric motors and fans forming the electric blower Fig. 1 Fig. 2 Fig. 3

Claims (1)

[Scope of Claims] 1. An outside air introduction passageway for introducing outside air into the vehicle interior, a heat insulating material lined on the inner surface of the outside air introduction passageway, an exhaust port for discharging the air inside the vehicle interior to the outside, and an outside air introduction passageway from the outside air introduction passageway. A ventilation system for an automobile, comprising: an electric blower that generates an air flow that reaches the exhaust port via the interior of the vehicle; and a solar cell that is disposed on the vehicle body and drives the electric blower when the vehicle is parked. 2. The ventilation system for a motor vehicle according to claim 1, wherein the outside air introduction passage is provided at the front of the vehicle compartment, and the exhaust port is provided at the rear side of the vehicle body. 3. The automobile ventilation system according to claim 1 or 2, wherein the electric blower is provided within the exhaust port.