JPS6132164B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention prevents the interior of a car parked under the scorching sun from being exposed to high temperatures, and at the same time prevents unpleasant odors from accumulating in the interior of the vehicle. This invention relates to an automotive ventilation system for preventing

(Conventional technology) Conventionally, when a car is parked outdoors in the hot summer sun for a long time, the inside of the car and the trunk can reach a high temperature of over 60°C due to the broad rays of the sun's rays. This has the disadvantage that it causes great discomfort to the passengers when boarding the vehicle, and that it also makes the cooling effect of the air conditioner less effective. Furthermore, the resin products, adhesives, and painted surfaces inside the vehicle interior generate bad odors when exposed to sunlight.

(Object of the Invention) The present invention has been made in view of the above-mentioned points, and the present invention has been made in view of the above-mentioned points. The purpose of this system is to ventilate the inside and outside of the car, thereby lowering the temperature inside the parked car and eliminating odors inside the car.

(Structure of the Invention) In order to achieve the above object, the present invention employs the following structure.

That is, in the first invention, (a) a blowing means disposed on the vehicle body and operated using the vehicle battery as a power source to ventilate the interior and exterior of the vehicle; (c) parking state detection means for detecting whether the vehicle is parked; and (d) charge amount detection means for detecting the charge amount of the on-vehicle battery. and (e) controlling energization of the air blowing means based on signals from the solar irradiation detection means, the parking state detection means, and the charge amount detection means, so that when the automobile is in the parked state and the amount of sunlight irradiation is and a control means for energizing the air blowing means from the on-vehicle battery when the charge amount of the on-vehicle battery is both above a predetermined value.

The second invention also provides: (a) a blowing means disposed on the vehicle body and operated using the vehicle battery as a power source to ventilate the inside and outside of the vehicle; (b) a blowing means disposed on the vehicle body and irradiating the vehicle (c) temperature detection means for detecting the temperature inside the vehicle; (d) parking state detection means for detecting whether the vehicle is parked; (e) a charge amount detection means for detecting a charge amount of the vehicle-mounted battery; (f) energization of the air blowing means based on signals from the sunlight irradiation detection means, the temperature detection means, the parking state detection means, and the charge amount detection means; When the vehicle is parked, the amount of charge in the vehicle battery is at least a predetermined value, and at least one of the amount of sunlight irradiation and the detected temperature inside the vehicle is at least a predetermined value, the vehicle and control means for energizing the air blowing means from the battery.

(Example) Hereinafter, an example of the present invention shown in the drawings will be described. 1 to 4 show an embodiment of the present invention. In FIG. 1, 1 is a passenger compartment of an automobile, and 2
is the floor of this vehicle compartment 1. 3 is a rear seat installed on the floor 2, 4 is the roof of the passenger compartment 1, 5 is a side window of the passenger compartment 1, and 6 is a rear window. 7 is a trunk room formed behind the rear seat 3, 8 is a trunk lid that opens and closes the trunk room 7, 9 is a fuel tank installed in the trunk room 7, and 10 is a solar ray A.
This is a phototransistor that serves as an irradiation detection means, and is installed in the luggage rack 11 behind the rear seat 3 in the passenger compartment 1 by means of screws, suction cups, etc. The phototransistor 10 is installed at a position directly below the rear window 6, which is a suitable location for detecting the irradiation of sunlight A into the vehicle interior 1. Here, the irradiation detection means is not limited to a phototransistor, but any photoelectric element can be used; for example, a photodiode or a solar cell element can also be used. A solar cell element generates a voltage when exposed to sunlight, so by applying this voltage to the base of the transistor via a resistor, it can function similarly to a phototransistor.

Reference numeral 12 denotes a parking ventilation passage provided under the rear window 6, and 13 a ventilation fan installed within the passage 12, which is driven by a small-capacity micromotor 14. This micro motor 14
is fixed to the inner wall of the passage 12 by a mounting stay (not shown). One end of the above-mentioned ventilation passage 12 is a vehicle interior air intake port 15 that opens at the rear of the vehicle interior 1.
The other end constitutes a discharge port 16 that opens to the outside of the vehicle at the rear of the rear window 6.

A bimetal switch 17 serves as a temperature detection means for detecting the temperature inside the vehicle, and is installed at the upper side of the rear part of the vehicle interior 1.
7 closes when the temperature inside the vehicle rises to a predetermined temperature, for example, 40° C. or more, and opens when the temperature is below a predetermined temperature. In FIG. 2, 18 is a manually operated switch installed near the driver's seat. A relay 19 serves as a parking state detection means, and is composed of a normally closed contact 19a and a coil 19b. The coil 19b is energized by the car's on-board battery (supplying power to on-board electrical equipment) 21 via the car engine's ignition switch 20, and when the ignition switch 20 is opened, the car engine is turned off. When the coil 19b is stopped, the current supply to the coil 19b is cut off, and the normally closed contact 19a returns from the open state to the closed state. Reference numeral 22 denotes a charge amount detection device for the automobile battery 21, and an example of its specific configuration is as shown in FIG. The detection device 22 shown in FIG. 3 attempts to detect the state of charge of the battery 21 by utilizing the fact that the terminal voltage of the battery 21 decreases as the discharge time of the battery 21 passes, as shown in FIG. In FIG. 3, 23 is a voltage detection circuit, 24 and 25 are resistors for dividing the terminal voltage of the battery 21, 26 is a non-inverting amplifier that amplifies the voltage at the connection point A between these two resistors 24 and 25, and 27 is a comparison circuit. The set voltage determined by the two resistors 28 and 29 and the Zener diode 30 is compared with the output voltage of the non-inverting amplifier 26. 31 is a base resistor, 32 is a switching transistor, and 33 is a relay, which consists of a normally open contact 33a and a relay coil 33b. Normally open contact 33a
is inserted between the normally closed contact 19a and the bimetal switch 17 as shown in FIG.

In this example, the above-mentioned phototransistor (sunlight irradiation detection means) 10 and bimetal switch (temperature detection means) 17 are directly connected in parallel and inserted into the energizing circuit of the motor 14, and the circuit connection itself of this parallel connection The energization to the motor 14 is controlled by satisfying the logical sum condition. Therefore, in this example, in the energizing circuit that energizes the motor 14 from the in-vehicle battery 21, the contact 19a of the relay 19 serving as the parking state detection means and the charge amount detection device 2
The control means for controlling the motor is constituted by the circuit connection itself in which the two contacts 33a are connected in series, and the phototransistor 10 and bimetal switch 17 are further connected in parallel to this series connection circuit.

Next, to explain the operation of the device of the present invention, in FIG. 2, when the vehicle is parked, the ignition switch 20 is
is open, normally closed contact 1 of relay 19
9a is closed, and sunlight A is inside the passenger compartment 1.
When the phototransistor 10 is irradiated, the phototransistor 10 is activated and becomes conductive. Further, the manual switch 18 is normally closed, and the normally closed contact 33a of the charge amount detection device 22 is closed if the battery 21 is normal. As a result, power is supplied from the battery 21 to the fan drive motor 14 through the manual switch 18, the normally closed contact 19a, the normally open contact 33a of the charge amount detection device 22, and the phototransistor 10, and the ventilation fan 13 is operated. As a result, the air inside the vehicle compartment 1 passes through the passage 12 and is discharged to the outside of the vehicle from the exhaust port 16, and at the same time, relatively low-temperature outside air from outside the vehicle enters the outside air intake (not shown) of the instrument panel or the side. It is introduced into the vehicle interior 1 through a gap in the window 5 or the like. As a result, the interior of the vehicle compartment 1 is ventilated, preventing the interior of the vehicle compartment 1 from becoming as hot as a greenhouse, and at the same time prevents bad odors generated from resin products, adhesives, etc. can be prevented.

In addition, in the circuit example of FIG. 2, the phototransistor 1
0, the bimetal switch 17 is connected in parallel, so even if the phototransistor 10 is cut off, the temperature inside the vehicle is high and the bimetal switch 1 is switched off.
7 is closed, the motor 14 is energized and the vehicle compartment 1 is ventilated. Here, the phototransistor 10 and the bimetal switch 17 may be connected in series instead of being connected in parallel as shown in FIG. In the case of this series connection, the motor 14 is energized only under the worst conditions for the generation of bad odors, such as high temperature inside the vehicle and penetration of sunlight A.
Battery 21 is used less frequently and battery 2
This is preferable from the viewpoint of a voltage drop of 1.

In addition, if the battery gets stuck for a long time while parked,
If power is supplied to the motor 14 from
When the terminal voltage at point 1 drops below the specified voltage, for example, 12.3V in FIG.
Since the transistor 32 enters the cutoff state, the current to the relay coil 33b is cut off, and the normally open contact 33
a returns from the closed state to the open state. As a result, power to the motor 14 of the ventilation fan 13 is cut off, and over-discharge of the battery 21 is prevented.

The present invention is not limited to the above-mentioned embodiments, but can be implemented in a wide range of modifications, and the modifications are enumerated as follows.

(1) Phototransistor 10 for detecting sunlight irradiation
The installation location is not limited to inside the vehicle compartment 1, but can also be provided outside the vehicle compartment 1 on the vehicle body of the vehicle.

(2) Connecting the vehicle compartment 1 and the trunk room 7,
The vehicle compartment 1 and the trunk room 7 may be ventilated at the same time. In this case, the ventilation fan 13 may be provided inside the trunk room 7. Further, a bimetal switch 17 serving as temperature detection means may also be provided in the trunk room 7.

(3) Bimetal switch 1 as temperature detection means
Of course, temperature switches other than 7 and semiconductor temperature sensing elements can also be used.

(4) The battery charge amount detection device 22 may be constituted by a device that detects a change in the specific gravity of the battery electrolyte shown in FIG. 4.

(5) As a means for detecting the parking state, in addition to the relay 19 that is linked to the ignition switch 20, any device that is linked to the engine operation, such as an engine oil pressure switch or an engine tachometer, can be linked. You can do it like this.

As explained in detail above, according to the first aspect of the present invention, when parking under the scorching sun in the summer, etc., the interior of the vehicle compartment 1 and the trunk compartment 7 are effectively ventilated, and the interiors of these compartments are ventilated. The temperature can be maintained at a relatively low temperature, which prevents the deterioration and decomposition of organisms stored in the passenger compartment 1 and the trunk compartment 7, and also prevents passengers from feeling uncomfortable due to hot air when boarding the vehicle after parking, and from air conditioner daylight. It is possible to eliminate the slow start-up of the air conditioner's cooling effect, and furthermore, by controlling the drive of the air blowing means using a detection means that is activated by direct sunlight irradiation, it is possible to eliminate the occurrence of bad odors during parking due to the intrusion of sunlight. This has an excellent effect in that it is possible to reliably prevent this, and it is also possible to start driving the air blowing means in advance before the temperature inside the vehicle rises. Furthermore, since the ventilation means can be operated only when ventilation is necessary due to the action of the solar irradiation detection means, unnecessary ventilation operation can be prevented, and since the vehicle is equipped with a means for detecting the amount of charge of the on-vehicle battery, , it is possible to prevent over-discharge of the vehicle battery. Therefore, even if the ventilation blowing means is operated using the on-vehicle battery as a power source when the vehicle is parked, an excellent effect can be obtained in that problems such as inability to start the engine due to over-discharge of the on-vehicle battery can be resolved.

Further, according to the second invention, not only the irradiation of sunlight but also the temperature inside the vehicle is detected, and when at least one of the two detected amounts is equal to or higher than a predetermined value, the blowing means is activated. Therefore, even under weather conditions where sunlight irradiation is temporarily interrupted, as long as the temperature inside the vehicle is above a predetermined value, the air blowing means can continue to be driven, which is an excellent effect.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view of the rear part of an automobile showing an embodiment of the present invention, FIG. 2 is an electric circuit diagram of the present invention, and FIG. 3 is an electric circuit diagram of a battery charge amount detection device used in the present invention. Figure 4 is a diagram showing the discharge characteristics of an automobile battery (lead storage battery). 10...Phototransistor serving as solar irradiation detection means, 13, 14...Ventilation fan and motor serving as air blowing means, 17...Bimetal switch serving as temperature detection means, 21...Automobile serving as in-vehicle power supply means For battery.

Claims (1)

[Scope of Claims] 1 (a) A blowing means disposed on the vehicle body and operated using the vehicle battery as a power source to ventilate the inside and outside of the vehicle; (b) A blower means disposed on the vehicle body and irradiating the vehicle. (c) Parking state detection means for detecting whether the vehicle is parked; (d) Charge amount detection means for detecting the charge amount of the on-vehicle battery; (e) controlling energization to the air blowing means based on signals from the solar irradiation detection means, the parking state detection means, and the charge amount detection means, so that when the vehicle is parked and the amount of sunlight irradiation and the vehicle battery are 1. A ventilation system for an automobile, comprising: control means for energizing the air blowing means from the on-vehicle battery when both charge amounts are equal to or greater than a predetermined value. 2 (a) A ventilation means installed in the vehicle body and powered by the vehicle battery to ventilate the inside and outside of the vehicle; (b) A solar device installed in the vehicle body to detect sunlight shining on the vehicle. light irradiation detection means; (c) temperature detection means for detecting temperature inside the vehicle; (d) parking state detection means for detecting whether the vehicle is parked; and (e) charge amount of the vehicle battery. (f) controlling energization of the air blowing means based on signals from the solar irradiation detection means, the temperature detection means, the parking state detection means, and the charge amount detection means; When the vehicle is parked and the amount of charge of the vehicle battery is equal to or higher than a predetermined value, and at least one of the amount of sunlight irradiation and the detected temperature inside the vehicle is equal to or higher than a predetermined value, air is supplied from the vehicle battery to the air blowing means. A ventilation system for an automobile, comprising a control means for energizing.