JPS5951451B2 - automotive ventilation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilation system for an automobile for preventing the cabin, trunk, etc. of a parked automobile from being exposed to high temperatures for a long time under the scorching sun.

Conventionally, when a car is parked outdoors in the hot summer sun for a long time, the inside of the car and trunk can reach high temperatures of over 100 degrees Celsius due to sunlight radiation.
In the passenger compartment, this has the disadvantage that it causes great discomfort to the occupants when boarding the vehicle, and also impairs the onset of the cooling effect of the near conditioner.

Furthermore, in the case of a trunk room, if the food or other living things placed inside the trunk room are subject to deterioration or decomposition due to high temperatures, there is a problem.

The present invention has been made in view of the above points, and it is possible to maintain the temperature inside the car at a relatively low temperature close to the outside temperature by ventilating the inside of the car even when the car is parked in the hot summer sun.
Another object of the present invention is to provide a highly practical ventilation system for a vehicle that does not cause over-discharge of the vehicle battery even if the blowing means is activated when the engine is stopped.

The present invention employs the following configuration to achieve the above object.

That is, the first invention provides a ventilation system for a vehicle, which includes: a means disposed on the vehicle body for converting sunlight into electrical energy; and a blower disposed on the vehicle body and driven by the electrical energy to exchange air inside and outside the vehicle. and a temperature detection means for detecting the temperature inside the vehicle and introducing the electrical energy to the air blowing means when the detected temperature is equal to or higher than a predetermined temperature.

A second aspect of the invention is a ventilation system for an automobile, comprising: means for converting sunlight into electrical energy, which is disposed on the vehicle body;
A blower means disposed on the vehicle body and driven by the electric energy to exchange air inside and outside the vehicle, and an engine interlocking means that introduces the electric energy into the blower means when the engine of the automobile is stopped. It is something to do.

Further, a third aspect of the present invention is a ventilation system for an automobile, including means for converting sunlight into electrical energy, which is disposed on the vehicle body;
a blowing means disposed on the vehicle body and driven by the electric energy to exchange air between the interior of the vehicle and the outside of the vehicle; a temperature detection means for detecting the temperature inside the vehicle; and an engine interlocking means linked with the operation of the engine of the vehicle; Controls energization to the air blowing means based on signals from the temperature detection means and the engine interlocking means, and supplies the electric energy to the air blowing means when the temperature inside the vehicle is above a predetermined temperature and the engine of the automobile is stopped. and control means to be introduced.

A fourth aspect of the present invention is a ventilation system applied to an automobile having an air purifier that includes at least activated carbon and purifies the air inside the vehicle, including means for converting sunlight into electrical energy, which is disposed on the vehicle body; A ventilation passage whose one end communicates with the interior of the vehicle via the air purifier and whose other end opens to the outside of the vehicle, and which is provided in the ventilation passage and is driven by the electrical energy to supply air inside the vehicle to the ventilation passage. The vehicle is equipped with a blowing means for discharging air to the outside of the vehicle through a passage, and a temperature detection means for detecting the temperature inside the vehicle and introducing the electrical energy into the blowing means when the detected temperature is equal to or higher than a predetermined temperature.

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

FIGS. 1 and 2 show a first embodiment of the present invention. Reference numeral 1 designates a water-cooled engine for driving an automobile, which is installed in an engine room 2. FIG.

3 is a bonnet for opening and closing the engine compartment 2; 4 is a passenger compartment of the automobile; and 5 is a floor of the passenger compartment 4.

6 and 7 are seats installed on the floor 5, 8 is the roof of the passenger compartment 4,
9 is a front window of the vehicle compartment 4, 10 and 11 are side windows, and 12 is a rear window.

13 is a trunk room formed behind the rear seat 7;
14 is a trunk lid that opens and closes this crank room 13;
15 is a fuel tank installed in the trunk room 13;
Reference numeral 16 indicates an instrument panel provided at the front of the vehicle compartment 4, and 17 indicates an automotive heating device installed below the instrument panel 16, which includes a heater fan 17a and a heater core 17b.

The heater fan 17a is driven by a motor powered by an on-vehicle battery (not shown), and the heater core 17a
b is for heating air for heating using the cooling water of the engine 1 as a heat source.

17C is a ventilation outlet of the heating system, and 17d is a warm air outlet for blowing air to the feet of the occupants.

A solar cell 18 is provided on the upper surface of the roof 8 and is used to convert sunlight B from the sun A into electrical energy.

This solar cell 18 is housed and mounted within a concave mounting plate 8a attached to the lower surface of the roof 8 so as not to spoil the exterior appearance of the automobile.

8b is an opening in the roof 8 for irradiating the solar cell 18 with sunlight, and a transparent window 18b made of acrylic resin and integral with the solar cell 18 is fitted therein.

19 is a parking ventilation passage provided in the instrument panel 16; 20
is a ventilation fan installed in this passage 19, which is driven by a small-capacity micromotor 21, which is operated by electrical energy obtained from the solar cell 18.

22 is a mounting stay for the micro motor 21;
is fixed to the outer circumferential surface of the

Reference numeral 23 denotes a fan casing, which is fastened together with the mounting stay 22 to the wall of the passage 19 by bolts 24.

Reference numeral 25 denotes an air outlet of the passage 19, which has a louver 25a that can be opened and closed by manual operation.

26 is an outside air intake port for taking in air outside the vehicle, that is, outside air into the passenger compartment, and is opened in the lower part of the front window 9;
It communicates with the heater fan 17a of the heating device 17 described above and the upstream side (suction side) of the ventilation fan 20.

Reference numeral 27 denotes a vehicle interior air outlet provided at the rear of the vehicle compartment 4.

28 is a manually operated switch located on the instrument panel 16 near the driver's seat.
It is installed in

29 is a relay that serves as an engine interlocking means, with a normally closed contact 29
a and a coil 29b.

The coil 29b is energized via an ignition switch (not shown), and when the ignition switch is opened and the engine 1 is stopped, the coil 29b is energized.
9b is de-energized, and the normally closed contact 29a returns from the open state to the closed state.

Reference numeral 30 denotes a bimetallic switch serving as temperature detection means, which closes when the temperature inside the vehicle reaches a predetermined temperature or higher, and is installed at an appropriate location in the vehicle interior, for example, on the instrument panel 16.

The above-mentioned switches 28, 30 and relay 29 are inserted in series in the current-carrying circuit between the solar cell 18 and the motor 21 of the ventilation fan 20.

In this example, between the solar cell 18 and the motor 21,
The circuit connection itself, in which the three components 28, 29, and 30 are connected in series, satisfies the AND condition and controls the energization of the motor 21.

Therefore, in this example, the circuit connection itself constitutes a control means for controlling the remoter, but it is obvious that this control means can be modified in various ways using well-known logic circuit techniques.

Next, a specific example of the solar cell 18 described above will be explained with reference to FIG. N-type silicon thin layer 101 as a light-receiving surface
is formed.

By the way, since the efficiency of the solar cell 18 tends to decrease as the temperature rises, it is desirable to take in as much light as possible from the sensitive part of the solar cell 18 and reflect all the light that is not sensitive.

The spectral sensitivity of solar cells using silicon is wavelength 0.5~
It is known that 1.1μ is sufficient, and as a countermeasure to the above problem, an interference thin film is applied to the surface of the solar cell 18 to transmit and absorb light with a wavelength of 0.5 to 1.1μ, and other What is necessary is to form a selective reflection layer that reflects light having a wavelength of .

This can be realized, for example, by a combination of a multilayer thin film of Zns-MgF2-Sio.

Generally commercially available solar cells include Sharp's S-224 (Figure 3b), S-225 (Figure 3C),
Alternatively, there are 5S-2020G, SS55-2O2, etc.

The S-224 solar cell 18' shown in Figure 3 is a square acrylic resin package 103 with a side length of 8 cm.
20 semicircular unit elements 18a are incorporated in the .

The output of this solar cell 18' is approximately 35 Qm watts, but the output of this solar cell 18' may vary depending on the capacity of the ventilation fan 20, which is determined by the size and shape of the vehicle, the climate, etc.
It is only necessary to determine the number of 8' to be used.

The solar cell 18'' shown in FIG. 3C is S-225, and has five circular unit elements 18a assembled in a rectangular package 104, and has an output of about 1 wattage.

Small size and high output products are 5S-2020G and SS.
55-2O2, which was developed for use in artificial hygiene, has an output of 55.9 mWa per unit element, and has an output of 1.5 mW per unit area compared to S-224 and S-225. Four times the output (14mWatt/cm2) can be obtained.

Since the capacity of the motor 21 of the ventilation fan 20 shown in FIGS. 1 and 2 of the present invention is 1 to 5 Wa, the above 5S-2
When using 020G, the total area of the solar cells 18 is S-
1000/14~5000/14-71~3570m2
It will be about.

When using S-224, 350 yen per solar cell
Since the output is mWatt, the number of solar cells 18' used is 3 to 14, and the total area is 192 to 900 cm.
It will be about m2.

To explain the operation of the device of the present invention in the above configuration, the manually operated switch 28 is normally closed.
Further, the contact 29a of the relay 29 is closed when the engine 1 is stopped because the ignition switch is open.

When the temperature inside the vehicle rises to a predetermined temperature, for example 40 degrees Celsius, due to parking under the scorching sun in summer, the bimetal switch 30 also closes, and the motor 21 of the ventilation fan 20 and the roof 8
It is electrically connected to the solar cell 18 on the top surface of.

As a result, the voltage generated by the electromotive force of the solar cell 18 is applied to the motor 21, and the motor 21 rotates.

As the motor 21 rotates, the ventilation fan 20 sucks air from outside the vehicle through the outside air intake port 26 and sends it into the vehicle interior 4 through the passage 19 and the air outlet 25.

Thereby, the heated air inside the vehicle interior 4 is forcibly discharged to the outside of the vehicle from the exhaust port 27, so that the interior of the vehicle interior 4 can be prevented from reaching a high temperature state like a greenhouse.

In addition, the bimetal switch 30 is opened when there is no need to ventilate the parking space, such as in spring, autumn, or winter, to prevent the motor 21 from rotating unnecessarily and extend the life of the motor 21. Contribute to things.

In addition, when the engine is running, the on-board battery is used as a power source.
Since the ventilation effect by the heater fan 17H or the cooling effect by the air conditioner can be performed, there is no need to operate the ventilation fan 20. Therefore, when the engine is running, the contact 29a of the relay 29 is opened and the ventilation fan 20 is activated. Stop unnecessary operations.

□ Also, if you do not want to operate the ventilation fan 20 even when the vehicle is parked, you can open the manual switch 28.

4 and 5 show a second embodiment of the present invention, in which a solar cell 18 is closely fixed to the interior side of the rear window 12 by adhesive or the like, and sunlight B is irradiated through the rear window 12.
This makes the solar cell 18 work.

Further, the ventilation fan 20 is installed in a ventilation passage 19 provided at the bottom of the rear window 12, and one end of this ventilation passage 19 constitutes a cabin air intake 31 that opens into the cabin 4. The other end constitutes a discharge port 27 that opens outside the vehicle interior.

On the other hand, in this example, a bimetallic switch 30 for detecting the temperature inside the vehicle is installed at the upper side of the rear part of the vehicle interior 4, and this bimetallic switch 30 is housed in a case 32 having a large number of ventilation holes 32a. .

The bimetal switch 30 consists of a bimetal piece 30a fixed to a mounting base 33 with screws, a movable contact 30b provided at the tip thereof, and a fixed contact 30C disposed opposite the movable contact 30b.

A relay 29 interlocked with the ignition switch of the engine 1 and the bimetal switch 30 are connected in series between the motor 21 of the ventilation fan 20 and the solar cell 18.

6 and 7 show a third embodiment of the present invention, which is a modification of the second embodiment, in which the solar cell 18
is connected to a spherical body 34 made of a steel ball, and a hemispherical bone of a support member 35 made of elastic resin supports the spherical body 34 rotatably on a surface, and this support member 35
By attaching the solar cell 18 to the luggage rack 37 behind the rear seat 7 using a suction cup 36, the installation direction of the solar cell 18 can be changed according to the directions of the sun's rays B and B' as shown by the broken line A.
The output of the solar cell 18 is sunlight B.

This is to ensure efficient performance regardless of changes in the direction of B'.

Further, in this example, by providing the cabin air intake 31 at a high position near the roof 8 at the rear of the cabin 4, the hot air rising to the upper part of the cabin 4 is sucked in from the inlet 31, and the duct 38 The air is guided to the entrance 19a of the ventilation passageway 19 through the outlet 27, and is discharged outside the vehicle through the outlet 27.

FIG. 8 shows a fourth embodiment of the present invention, which is designed to ventilate the trunk compartment 13. A solar cell 18 is attached to the top surface of the trunk lid 14, and a ventilator is installed at the rear of the trunk compartment 13. A passage 19 is provided, and this passage 1
A ventilation fan 20 and a drive motor 21 are installed inside the passage 19, and the lower end of the passage 19 is opened to the outside of the vehicle to form an outside air intake port 39. The upper end of the passage 19 is connected to the trunk room 13.
It opens inward to form an air outlet 40.

Further, an exhaust port 41 is provided at the upper part of the trunk room 13 and below the rear window 12 for discharging the air in the trunk room 13 and the vehicle interior 4 to the outside of the vehicle.

In this example, by operating the ventilation fan 20 using the output of the solar cell 18, air from outside the vehicle is sucked in through the intake port 39, circulated within the trunk compartment 13 as shown by the arrow, and is discharged outside the vehicle from the exhaust port 41. Trunk room 1
Prevent the interior of 3 from becoming hot and protect the trunk room 1.
It can prevent the organisms 42 and 43 inside 3 from deteriorating and decomposing.

Although not shown, the ventilation fan 20 is also used in this example.
It goes without saying that it is a good idea to insert a temperature switch that detects the temperature in the trunk room 13 and opens and closes it and a manually operated switch into the current-carrying circuit between the motor 21 and the solar cell 18.

9 and 10 show a fifth embodiment of the present invention, and this embodiment is applied to an automobile equipped with an air purifier 44 for removing dirt and bad odor from the air inside the vehicle. , this air purifier 44 has activated carbon built-in, and when the manual switch 45 installed near the driver's seat is closed,
The electric fan 47 is energized from the on-board battery 46, rotates, and air inside the vehicle is sucked through the intake port 48.

At this time, when the manual switch 45 is closed, the electromagnetic solenoid 49 is also energized, and the attraction force of the electromagnetic solenoid 49 draws the switching valve 50 to the position shown by the broken line in FIG. 9, opening the discharge port 51 into the passenger compartment. do.

Therefore, the cabin air sent by the fan 47 has dirt and bad odors absorbed by the activated carbon of the air purifier 44 to become clean air, and is then supplied into the cabin 4 from the discharge port 51 again.

On the other hand, when the manual switch 45 is in the open state, the switching valve 50 is in the solid line state shown in FIG. 9 by the force of the spring 52, closing the discharge port 51 and opening the entrance to the ventilation passage 19.

In this state, when the car is parked and the temperature inside the cabin 4 rises, the bimetal switch 30 (not shown in this example) that detects the temperature inside the cabin closes, and the solar cell 18 closes.
An electromotive force (not shown in this example) is supplied to the motor 21 of the ventilation fan 20, and the ventilation fan 20 is operated.

As a result, the hot air inside the vehicle passes through the activated carbon of the air purifier 44 through the intake port 48, passes through the ventilation passage 19, and then passes through the exhaust port 27.
is ejected from the vehicle.

Here, the activated carbon of the air purifier 44 generally has a property of desorbing adsorbed components when the temperature becomes high, so when the hot air inside the vehicle passes through the activated carbon, the activated carbon desorbs the adsorbed components of the activated carbon and increases its activity.

As described above, in this example, 1. While the vehicle is parked, solar energy can be used to simultaneously cool the interior of the vehicle interior 4 and clean the activated carbon.

Note that the solar cell 18, which is not shown in the drawings in this example, may be installed on the top surface of the roof 8, the side surface of the rear window 120 inside the vehicle, the top surface of the luggage rack 37, etc.

Similarly, the bimetal switch 30 may be installed anywhere as long as the average temperature inside the vehicle interior 4 can be detected.

Further, in the first embodiment described above, the ventilation fan 19 was installed in the ventilation passage 19 independent from the heating device 17, but it is also possible to install it in the passage of the ventilation outlet 17C in the heating device 17. .

In addition, the solar battery 1 is connected to the heater fan 17a of the heating device 17.
The heater fan 17a is supplied with an electromotive force of 8.
It is also possible to have the fan 19 also function as the ventilation fan 19.

Further, the device of the present invention may be configured to ventilate both the interior of the vehicle compartment 4 and the interior of the trunk room 13 using solar cells 18 provided at one or more locations.

In addition, as shown in Fig. 1, a solar cell 18 installed on the roof 8
Also, as shown in FIG. 8, the solar cell 18 installed on the trunk lid 14 may have a structure in which the installation direction of the solar cell 18 can be adjusted.

Further, as the temperature detection means, a temperature sensing switch other than the bimetal switch 30, a semiconductor temperature sensing element, etc. can be used, and it is possible to detect not only the temperature of the air inside the car but also the surface temperature of the steering wheel, instrument panel, seats, etc. Needless to say, it is a good thing.

Further, as the engine interlocking means, in addition to the relay 29 interlocking with the ignition switch, any device related to the operation of the engine 1, such as an engine oil pressure switch or an engine tachometer, may be interlocked. .

As described above, the present invention can be widely modified and implemented in various embodiments.

As explained in detail above, according to the first aspect of the present invention,
To effectively ventilate the interior of the vehicle compartment 4 and the trunk compartment 13 when parking under the hot summer sun, etc.
It is possible to maintain the inside of these at a relatively low temperature, thereby preventing deterioration and decomposition of organisms stored in the passenger compartment 4 and trunk compartment 13. It has an excellent effect of providing a pleasant feeling and eliminating the slow onset of the cooling effect of the near conditioner.

Moreover, since the ventilation fan 20 is powered by electrical energy from sunlight, there is no risk of over-discharge of the vehicle battery even when the vehicle is parked for a long time. There are no problems such as the inability to start as described in No. 1, and it is extremely convenient as a ventilation system for automobiles.

Furthermore, obtaining the power source of the ventilation fan 20 from electrical energy generated by sunlight is very advantageous for enhancing the ventilation effect, and this point is a major feature of the present invention.

In other words, when a car is parked outdoors, the temperature inside the car increases as the sun's rays become stronger, but the electromotive force of the solar cell 18 also increases in proportion to the stronger the sun's rays. The ventilation air volume of the ventilation fan 20 can be increased as the temperature is stronger, so that a special effect is obtained in that the ventilation capacity corresponding to the weather at the time of parking can be automatically obtained without requiring a special control device.

Further, in the first invention, since the temperature detection means for detecting the temperature inside the car is provided, and the ventilation fan 20 is automatically activated only when the temperature inside the car is higher than a predetermined temperature, in addition to the above effects, This has the effect that the ventilation fan 20 and its drive motor 21 can be prevented from performing unnecessary operations, thereby extending their lifespan.

Further, in the second invention, instead of the temperature detection means of the first invention, an engine interlocking means is provided, and the ventilation fan 20 is automatically operated by the engine interlocking means only when the engine of the automobile is stopped. Since the ventilation fan 20 and its drive motor 21 are configured as , it has the advantage of being extremely easy to configure.

In a third aspect of the invention, the temperature detecting means and the engine interlocking means are combined, and in response to signals from both means, the temperature inside the vehicle is equal to or higher than a predetermined temperature and the engine 1 is stopped. Since the ventilation fan 20 is equipped with a control means that operates the ventilation fan 20 only when the ventilation fan 20 is present, the ventilation fan 20 is only operated to the minimum necessary extent, and the life of the ventilation fan 20 and its drive motor 21 is further extended. Furthermore, the operation of the ventilation fan 20 can be automatically controlled without bothering the driver, which has a great effect of reducing the burden on the driver.

In addition, in the fourth invention, (1) when performing ventilation during parking, the air inside the vehicle is discharged to the outside of the vehicle through an air purifier containing activated carbon, so that high-temperature air during parking is Since the adsorbed components of the activated carbon can be desorbed by the air inside the vehicle and the activity of the activated carbon can be increased, the ventilation effect can be used as is and the deodorizing effect of the activated carbon can be maintained for a long period of time, which is an excellent effect.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view of an automobile showing a first embodiment of the present invention, and FIG. 2 is a combination of the enlarged sectional view of the main parts of FIG. 1 and an electric circuit diagram. Figure 3a. b, C are explanatory diagrams of specific examples of the solar cells shown in FIGS. 1 and 2, FIG. 4 is a schematic cross-sectional view of the rear part of an automobile showing a second embodiment of the present invention, and FIG. 5 is a diagram of FIG. FIG. 6 is a schematic sectional view of the rear part of an automobile showing a third embodiment of the present invention; FIG. 7 is an enlarged sectional view of the essential parts of FIG. 6; FIG. 8 is a schematic sectional view of the rear part of an automobile showing a fourth embodiment of the present invention, FIG. 9 is a schematic sectional view of the rear part of an automobile showing a fifth embodiment of the invention, and FIG. FIG. 2 is a control circuit diagram for an air purifier. 1... Engine, 4... Vehicle compartment, 8...
... Roof, 12 ... Rear window, 13 ...
... Trunk room, 18 ... Solar battery, 20
．． 21... Ventilation fan and motor serving as air blowing means, 29... Relay serving as engine interlocking means, 30... Bimetal switch serving as temperature detection means.

Claims (1)

[Scope of Claims] 1. A means disposed on the vehicle body to convert sunlight into electrical energy; a blowing means disposed on the vehicle body and driven by the electrical energy to exchange air inside and outside the vehicle; 1. A ventilation system for an automobile, comprising temperature detection means for detecting temperature and introducing the electrical energy to the blowing means when the detected temperature is equal to or higher than a predetermined temperature. 2. The ventilation system for a motor vehicle according to claim 1, wherein the means for converting the sunlight into electrical energy is installed on the roof of the vehicle interior. 3. The ventilation system for a motor vehicle according to claim 1, wherein the means for converting sunlight into electrical energy is installed on the inside of the vehicle at the rear window of the vehicle. 4. The ventilation system for a motor vehicle according to claim 1, wherein the means for converting the sunlight into electrical energy is installed on a luggage stand behind a rear seat in the vehicle interior. 5 Means for converting the sunlight into electrical energy
- The automobile ventilation system according to claim 1, which is installed on the upper surface of the rank lid. 6. The ventilation system for an automobile according to any one of claims 1 to 5, characterized in that the air blowing means is installed in a trunk room. 7. The ventilation system for a motor vehicle according to any one of claims 1 to 5, wherein the air blowing means is installed in an instrument panel at the front of the vehicle compartment. 8. The ventilation system for a motor vehicle according to any one of claims 1 to 5, wherein the air blowing means is installed in a ventilation passage formed at a lower part of a rear window of the motor vehicle. 9. Any one of claims 1 to 8, characterized in that the means for converting sunlight into electrical energy is configured such that its installation direction can be changed depending on the direction of the sunlight. Automotive ventilation system as described in . 10 A means disposed on the vehicle body for converting sunlight into electrical energy; a blowing means disposed on the vehicle body driven by the electrical energy to exchange air inside and outside the vehicle; A ventilation system for a motor vehicle, comprising: an engine interlocking means for introducing the electrical energy into the blowing means when the engine of the motor vehicle is stopped. 11. A means disposed on the vehicle body to convert sunlight into electrical energy; a blower means disposed on the vehicle body and driven by the electric energy to exchange air inside the vehicle and outside the vehicle;
A temperature detection means for detecting the temperature inside the vehicle interior; an engine interlocking means interlocking with the operation of the engine of the vehicle; and controlling energization to the air blowing means based on signals from the temperature detection means and the engine interlocking means. 1. A ventilation system for a motor vehicle, comprising: control means for introducing the electrical energy into the air blowing means when the temperature is above a predetermined temperature and the engine of the motor vehicle is stopped. 12 In a vehicle having an air purifier that contains at least activated carbon and purifies the air inside the vehicle, there is a means installed in the vehicle body for converting sunlight into electrical energy; a ventilation passageway that communicates with the ventilation passageway and opens at the other end to the outside of the vehicle; and a blowing means that is disposed in the ventilation passageway and is driven by the electrical energy to discharge the air inside the vehicle to the outside of the vehicle through the ventilation passageway; 1. A ventilation system for an automobile, comprising temperature detection means for detecting a temperature inside a vehicle interior and introducing the electric energy to the blowing means when the detected temperature is equal to or higher than a predetermined temperature.