JPH08142648A - Ventilation unit for vehicle - Google Patents

Abstract

PURPOSE: To correctly detect the in-cabin temperature while a car is parked without wasting the power of the battery by providing a ventilation starting control means to control a ventilation fan driving means so as to drive the ventilation fan when a judgement is made that the detected temperature exceeds the prescribed value by a detected temperature judging means. CONSTITUTION: An air conditioner control device outputs the control signal to stop fan motors 1b, 3c when the detected temperature of an in--cabin temperature sensor does not reach the prescribed value. The respective relay coils of relays 17, 18 are energized, and the energization to the fan motors 1b, 3c is stopped. When the detected temperature of the in-cabin temperature sensor exceeds the prescribed value, the respective relay coils of the relay 17, 18 are in the non-energized condition, and the power of an auxiliary battery 8 is supplied to the fan motors 1b, 3c. Convection of the in-cabin air is made to unify the temperature distribution by intermittently repeating the driving and the stopping of the ventilation fan while the car is parked, and the in-cabin temperature can be correctly detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device for a vehicle that rotates a ventilation fan during parking to ventilate the air in the passenger compartment.

[0002]

2. Description of the Related Art Ventilation devices for vehicles as described above have been conventionally known, and as one example thereof, when the vehicle is stopped and the vehicle ignition key is pulled out, the outside air temperature is a predetermined temperature (for example, 15 ° C.) or more. In that case, there is one that ventilates the interior of the vehicle by rotating the ventilation fan with the electric power generated by the solar cell.

[0003]

However, in the above, when the outside air temperature is lower than the predetermined temperature, the ventilation fan does not rotate even if the amount of solar radiation is high and the vehicle interior temperature rises.
Therefore, in order to reliably turn the ventilation fan when the temperature inside the vehicle compartment during parking becomes higher than the temperature that requires ventilation, a means for detecting the temperature inside the vehicle compartment is required.

However, for example, when only a part of the passenger compartment is exposed to the solar radiation, the temperature of this part becomes higher than that of the other parts. As described above, since the temperature distribution in the vehicle interior is actually biased, the vehicle interior temperature cannot be accurately detected depending on the position where the vehicle interior temperature detecting means is arranged. If the vehicle interior temperature cannot be accurately detected in this way, the ventilation fan may turn when it is not necessary to turn it, or may not turn when it is desired. Here, if the ventilation fan is rotated when it is not necessary to rotate, if the ventilation fan is configured to be rotated by the power of the battery, the power of the battery is wasted. On the other hand, if the ventilation fan does not rotate when you want it to, you will not be able to feel the temperature inside the vehicle while it is parked, and you will not be able to feel it.

In view of the above problems, the present invention detects the temperature inside the vehicle compartment during parking by means for detecting the temperature inside the vehicle compartment, and rotates the ventilation fan based on the detected temperature to ventilate the air inside the vehicle interior during parking. This ventilation fan for vehicles is configured to be driven by the power of the battery, without wasting the power of the battery and detecting the temperature inside the parked vehicle as accurately as possible to give the occupant's feeling. The aim is to be satisfied.

[0006]

In order to achieve the above-mentioned object, in the invention according to claim 1, a ventilation passage (3a) for connecting a vehicle interior and a vehicle exterior is provided, and the ventilation passage (3a) is provided in the ventilation passage (3a). A ventilation fan (3b), a ventilation fan drive means (3c) for driving the ventilation fan (3b) with electric power from a battery (8), a vehicle interior temperature detection means (20) for detecting a vehicle interior temperature, Parking determination means (step 110) for determining whether or not the vehicle is parked, and driving of the ventilation fan (3b) at a predetermined cycle when it is determined by the parking determination means (step 110) that the vehicle is parked, The ventilation fan driving means (3
intermittent control means (step 150 to step 170) for controlling c), and the vehicle interior temperature detection means (2) during the control of the intermittent control means (step 150 to step 170).
0) detected temperature determining means (step 180) for determining whether or not the detected temperature is equal to or higher than a predetermined temperature, and the detected temperature determining means (step 180) determines that the detected temperature is equal to or higher than the predetermined temperature. Then, the ventilation start control means (step 19) for controlling the ventilation fan drive means (3c) so that the ventilation fan (3b) is driven.
0) and are provided.

In the invention according to claim 2, in the vehicle ventilation device according to claim 1, when the parking determination means (step 110) determines that the vehicle is parked, the vehicle interior temperature detection means (20). Second detection temperature determining means (step 130) for determining whether or not the detected temperature is equal to or higher than the second predetermined temperature, and the detection temperature is determined by the second detection temperature determining means as the second predetermined temperature. When it is determined that the temperature is equal to or higher than the temperature, the control by the intermittent control means is performed.

According to a third aspect of the invention, in the vehicle ventilation system according to the first or second aspect, the vehicle interior temperature detecting means (20) is provided on the ceiling of the vehicle. Further, in the invention according to claim 4, in the vehicle ventilation device according to claim 1 or 2, the vehicle interior temperature detecting means (20) includes the ventilation passage (3).
It is provided in the vicinity of the ventilation fan (3b) in a).

The predetermined temperature referred to in the invention of claim 1 corresponds to a temperature high enough to drive the ventilation fan to ventilate the hot air in the passenger compartment. Further, the second predetermined temperature referred to in the second aspect of the present invention means that if the vehicle compartment temperature is equal to or higher than the second predetermined temperature, the ventilation fan is driven intermittently by the control of the intermittent control means. , The battery power consumed for this drive corresponds to a high temperature that is not wasted.

Further, the reference numerals in the parentheses of the above-mentioned means indicate the corresponding relations with the concrete means of the embodiments described later.

[0011]

According to the invention described in claim 1, when the parking determination means determines that the vehicle is parked, the intermittent control means controls (hereinafter, referred to as intermittent control) to control the ventilation fan at a predetermined cycle. Driving and stopping are repeated intermittently. As a result, the air in the passenger compartment is intermittently convected,
The temperature distribution inside the vehicle is made uniform.

Then, the homogenized vehicle interior temperature is detected by the vehicle interior temperature detection means, and the detected temperature determination means determines whether or not the detected temperature exceeds a predetermined temperature. When it is determined that the temperature becomes equal to or higher than the predetermined temperature, the ventilation fan is driven by the control of the ventilation start control means, and the warm air in the vehicle compartment is ventilated. As described above, according to the present invention, driving and stopping of the ventilation fan are intermittently repeated during parking to convect the air in the vehicle compartment and uniformize the temperature distribution in the vehicle compartment. The temperature can be made as accurate as possible. Then, by performing the ventilation based on the accurate detected temperature, the ventilation suitable for the feeling of the occupant can be performed. Further, as described above, the ventilation fan is not driven continuously but intermittently driven to convect the air in the vehicle compartment, so that the power consumption of the battery can be reduced.

According to the second aspect of the invention, if the second detected temperature determining means determines that the detected temperature of the vehicle interior temperature detecting means during parking is equal to or higher than the second predetermined temperature, the intermittent control is performed. Done. In other words, even after the vehicle is parked, the intermittent control is not performed unless the detected temperature becomes equal to or higher than the second predetermined temperature. Therefore, when the temperature inside the vehicle is low enough to eliminate the need for ventilation, the ventilation fan will not be driven unnecessarily intermittently, so that waste of battery power can be eliminated.

When the vehicle interior temperature detecting means is provided near the ventilation fan in the ceiling of the vehicle or in the ventilation passage as in the invention of claim 3 or the invention of claim 4, the vehicle interior temperature is detected. The means detects a temperature as close as possible to the temperature inside the vehicle in the vicinity of the vehicle driver. Therefore, by making the temperature distribution in the vehicle compartment uniform by the intermittent control, it is possible to more accurately detect a temperature close to the temperature in the vicinity of the driver, thereby preventing waste of battery power and satisfying the occupant's feeling. can do.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a mounting position of a vehicle ventilation device and a vehicle air conditioner in a vehicle in the present embodiment, in which 1 is an air conditioning unit of the air conditioner, 2 is a room lamp mounting portion, and 3 is It is a ventilation unit of the ventilation device. The ventilation unit 3 will be described later.

The air conditioning unit 1 is provided on the front side of the vehicle as shown. The air conditioning unit 1 cools the air from the fan 1a in addition to the air conditioning fan 1a that sucks the outside air or the inside air and blows the intake air into the vehicle compartment, the fan motor 1b that drives the air conditioning fan 1a. Cooling means, heating means for reheating the cold air from the evaporator, temperature adjusting means for adjusting the degree of air heating in this heating means, and switching to which position in the passenger compartment the air whose temperature is adjusted by this temperature adjusting means is blown out This is a well-known device equipped with a blowing mode switching means (not shown) and the like.

The room lamp mounting portion 2 is provided on the ceiling of the vehicle. The room lamp mounting portion 2 is provided with a room lamp 2a as shown in FIG.
A switch 2 for instructing on / off of the room lamp 2a
b is provided. Further, the room lamp mounting portion 2 is formed with a slit-shaped opening 2c.
An inside air temperature sensor 20 for detecting the temperature inside the vehicle is arranged on the back side of FIG. Note that FIG. 2 is a view of the room lamp mounting portion 2 viewed from the bottom to the top of FIG.

The ventilation unit 3 is provided on the rear side of the vehicle as shown in FIG. As shown in FIG. 3, the ventilation unit 3 has an opening 4a formed in the rear tray 4.
Ventilation duct 3 that connects the exhaust port 5 opened to the outside of the vehicle
a, a ventilation fan 3 provided in this ventilation duct 3a
b, a fan motor 3c for driving this ventilation fan 3b,
And a ventilation duct 3 between the ventilation fan 3b and the exhaust port 5.
a means for opening and closing the inner passage (specifically, the first door) 3d
It has.

Further, the ventilation duct 3a has a structure in which, in FIG. 3, the ventilation fan 3b is extended more toward the back of the drawing than the portion where the ventilation fan 3b is shown, and the extended portion has a filter (not shown) of the air cleaner. ) Is provided.
Further, means for opening and closing a passage in the ventilation duct 3a between the filter and the ventilation fan 3b (specifically, a second door, not shown) between the filter and the ventilation fan 3b.
Is provided.

When the ventilation fan 3b is driven with the first door 3d closing the passage in the ventilation duct 3 and the second door opening the passage in the ventilation duct 3, the ventilation fan 3b sucks the air. Impurities contained in the air are filtered by the filter and returned to the passenger compartment to enter the air cleaning mode. Further, when the ventilation fan 3b is driven with the first door 3d opening the ventilation duct 3 internal passage and the second door 3d closing the ventilation duct 3 internal passage, the air in the vehicle interior is replaced by the ventilation duct 3a. The ventilation mode is in which the air is ventilated from the exhaust port 5 via.

Next, the electrical construction of this embodiment will be described with reference to FIG. In FIG. 4, 6 is a main battery that supplies electric power to electric components mounted on the vehicle, 7 is an ignition key, and 8 is power to the fan motors 1b and 3c only when the ignition key 7 is off (during parking). Is an auxiliary battery for supplying the air conditioner, and 9 is an air conditioning controller for controlling the air conditioner. In addition to the inside air temperature sensor 20, signals from an outside air temperature sensor that detects the outside air temperature, a solar radiation sensor that detects the amount of solar radiation applied to the vehicle interior, and the like are input to the air conditioning control device 9.

Further, in FIG. 4, 10 is a fan motor 1b.
Means for adjusting the voltage applied to the device (specifically, a power transistor), 11 is a controller for the air cleaner that controls the air cleaner, and 12 is a device for comparing the voltage of the auxiliary battery 8 with a predetermined voltage. A voltage comparison circuit for stopping energization of the fan motors 1b and 3c when the predetermined voltage becomes higher, and 13 to 19 are relays.

When the ignition key 7 is turned on, electric power is supplied to the air conditioning control device 9, and this air conditioning control device 9
Is ready for operation. At this time, relays 13, 14, 1
Current flows through each relay coil of No. 5, and each relay contact closes. Therefore, at this time, if the control signal for setting the air cleaning mode is output from the air cleaner control device 11, the fan motor 3c is energized and the ventilation fan 3b rotates. At this time, the air purifier control device 11 also controls the first door 3d and the second door so that the air cleaning mode is set. Further, when the relay contacts are closed, the fan motor 1b is turned on via the power transistor 10, and the air conditioning fan 1a is rotated.

When the ignition key 7 is turned on, the coil of the relay 16 is energized, the relay contact is closed, and power is supplied from the main battery 6 to the auxiliary battery 8. That is, the auxiliary battery 8 is charged. Next, when the ignition key 7 is turned off and the vehicle is parked, the contacts of the relays 13 to 16 are opened. As a result, the charging is stopped. At this time, the temperature detected by the inside air temperature sensor 20 is so high as to require ventilation in the ventilation mode (claim 2
The second predetermined temperature referred to in the described invention is 4 in this embodiment.
0 ° C.), the electric power of the auxiliary battery 8 is supplied to the fan motors 1b and 3c, and the electric power of the auxiliary battery 8 is supplied to the fan motors 1b and 3c unless the second predetermined temperature is reached.
It is not supplied to b and 3c.

That is, when the temperature detected by the inside air temperature sensor 20 does not reach the second predetermined temperature, the air conditioning control device 9 determines that it is not necessary to ventilate the vehicle while parking, and turns on the fan motors 1b and 3c. A control signal for stopping is output (control in step 140 of the flowchart described later).
At this time, by outputting the control signal, the relay coils of the relays 17 and 18 are energized, the relay contacts of the relays 17 and 18 are opened, and the energization of the fan motors 1b and 3c is stopped. On the contrary, when the temperature detected by the inside air temperature sensor 20 is equal to or higher than the second predetermined temperature, the relay coils of the relays 17 and 18 are in the non-energized state, so that the power of the auxiliary battery 8 is increased by the fan motor 1.
b, 3c.

Further, when the power supply voltage of the auxiliary battery 8 drops and becomes equal to or lower than the minimum voltage (for example, 10 V) required to operate the fan motors 1b and 3c, the transistor 12a of the voltage comparison circuit 12 becomes conductive. , Current flows through the coil of relay 19 and the contact of relay 19 opens,
The power supply from the auxiliary battery 8 to the fan motors 1b and 3c is stopped.

Next, the control processing of the air conditioning control device 9 will be described with reference to the flowchart of FIG. In this embodiment, if the outside air temperature is 20 (° C.) or higher, the air conditioner enters the mode for introducing the outside air and the ventilator enters the ventilation mode when the ignition key 7 is turned off. First, when the automatic control process of the air conditioner is started in step 100, it is determined in step 110 whether or not the ignition key 7 is off, that is, whether or not the vehicle is parked. If NO is determined here, normal air conditioning control is performed in step 120. That is, the target air outlet temperature, the target air flow rate, the target air outlet mode, etc. are determined based on the vehicle interior temperature, the outside air temperature, the amount of solar radiation, etc. at that time, and each air conditioning actuator is controlled to obtain these target values. Control. Then, the process returns to step 110 again.

If YES is determined in step 110, it is determined in step 130 whether the vehicle interior temperature detected by the inside air temperature sensor 20 is equal to or higher than the second predetermined temperature. If NO is determined here, in step 140, a control signal for stopping the fans 1a and 3b is output.
As a result, the relay coils of the relays 17 and 18 are energized, and the fan motors 1b and 3c are stopped. Then, the process returns to step 110.

If YES is determined in step 130, it is determined in step 150 whether or not a predetermined time (10 minutes in this embodiment) has elapsed since the determination in step 130 is YES. If NO is determined, the process returns to step 110, and if YES is determined, the process proceeds to the next step 160. According to this, step 130
If the ignition key 7 is turned on within 10 minutes after the determination is YES in step 160, the process of step 160 is not performed.

At step 160, a control signal for driving the fans 1a, 3b is output. This makes the relay 17,
Each of the 18 relay coils is de-energized, and the fan motors 1b and 3c are driven. Then, in the next step 170, it is determined whether or not a predetermined time (30 seconds in this embodiment) has elapsed since the process of step 160 was started, and NO
If it is determined that the process returns to step 160, YE
If it is determined to be S, the process proceeds to the next step 180. That is, the fans 1a and 3b are driven for 30 seconds.

In step 180, the temperature inside the vehicle detected by the inside air temperature sensor 20 is so high that it is necessary to drive the fans 1a and 3b to ventilate the hot air inside the vehicle (the invention of claim 1). The predetermined temperature referred to in this example is 50 ° C. in this embodiment. Hereinafter, it is determined whether the predetermined temperature is equal to or higher than the first predetermined temperature). If NO is determined here, it is determined that ventilation is not necessary, and step 110
Return to processing. If it is determined that the ventilation is necessary, the fans 1a and 3b are determined in step 190.
Output a control signal for driving. This makes relay 1
The relay coils 7 and 18 are de-energized, and the fan motors 1b and 3c are driven.

Then, in step 200, it is judged whether or not the vehicle interior temperature detected by the inside air temperature sensor 20 is lower than a third predetermined temperature (30 ° C. in this embodiment). Where N
If it is determined to be O, it is considered that the passenger compartment is still hot, and the process returns to step 190 to continue ventilation. If YES is determined, it is considered that the vehicle interior temperature has decreased to the extent that ventilation is no longer required, and the process returns to step 110.

The above steps constitute means for realizing the respective functions. Next, FIG. 6 shows changes in the vehicle interior temperature due to the above control. The outside temperature at this time is 3
It is assumed that 800 (W / m ² ) of solar radiation is applied only to the inside of the passenger compartment at 5 (° C). In addition, the vehicle interior temperature before turning off the ignition key 7 is 25 (° C.). The solid line A in the figure indicates the temperature detected by the inside air temperature sensor 20,
The dashed-dotted line B shows a total of 4 drivers, passengers and rear seats (2 seats)
The average temperature of the occupant's head, chest and thighs in the seat is shown.

As shown in FIG. 6, when the ignition key 7 is turned off at time t ₀ , the outside air temperature is higher than the passenger compartment temperature and the passenger compartment is exposed to solar radiation.
The cabin temperature rises. At this time, the fans 1a and 3b are stopped by the control of step 140. And
When the temperature detected by the inside air temperature sensor 20 exceeds the second predetermined temperature (= 40 ° C.) at time t ₁ , the time t ₂ 10 minutes after the second predetermined temperature is exceeded by the control of steps 150 to 170. only 30 seconds from to time t ₃ fan 1a,
3b is driven. Here, as shown in FIG. 6, the fan 1
By driving a and 3b, it can be seen that the temperature detected by the inside air temperature sensor 20 becomes substantially equal to the actual temperature of the passenger portion.

Then, as shown in FIG. 6, if the temperature detected by the inside air temperature sensor 20 at the time t ₃ is equal to or lower than the first predetermined temperature (= 50 ° C.), then at step 180 N
It is determined to be O, and the control from the time t ₁ to the time t ₃ is repeated again (time t _{3 to} t ₅ ). Then, as shown in FIG. 6, if the temperature detected by the inside air temperature sensor 20 at time t ₅ is equal to or higher than the first predetermined temperature, step 19
At 0, the fans 1a and 3b are driven to perform ventilation. Although not shown in FIG. 6, the ventilation lowers the vehicle interior temperature, and when the detected temperature becomes equal to or lower than the third predetermined temperature (= 30 ° C.), the fans 1a and 3b are stopped and the time is restarted. The above control after t ₀ is repeated.

As described above, in the present embodiment, when the ignition key 7 is turned off, the intermittent control of driving the fans 1a and 3b for 30 seconds at a cycle of 10 minutes and 30 seconds is performed. Due to this, the indoor air is convected, and the vehicle interior temperature can be detected by the inside air temperature sensor 20 as accurately as possible. Further, in this embodiment, the fans 1a and 3b are not continuously driven to perform the above convection, but are driven only for 30 seconds at a cycle of 10 minutes and 30 seconds, so that the fans 1a and 3b are driven more than necessary. Therefore, it is possible to prevent the auxiliary battery 8 from wasting electric power.

Further, in the present embodiment, the ignition key 7
The intermittent control is not performed immediately after turning off, but is performed after the temperature detected by the inside air temperature sensor 20 becomes equal to or higher than the second predetermined temperature. Therefore, the fan 1a is unnecessary.
Since 3b is not driven, it is possible to prevent wasted power of the auxiliary battery 8. Further, in the present embodiment, the fan 1a is driven in addition to the fan 3b in order to perform ventilation during parking, so that the air in the passenger compartment during parking can be firmly convected.

Further, in this embodiment, the inside air temperature sensor 20 is
Since it is provided on the ceiling of the vehicle that has the highest correlation with the passenger compartment temperature in the passenger compartment, it is possible to detect the passenger compartment temperature that is not affected as much as possible by the outside air temperature, the amount of solar radiation, and the direction of solar radiation. Therefore, the effect of the intermittent control can be further exerted, the waste of the electric power of the auxiliary battery 8 can be further prevented, and the occupant's feeling can be satisfied.

(Other Embodiments) In the above embodiment, the inside air temperature sensor 20 is provided on the ceiling of the vehicle. However, as shown in FIG.
Even if it is provided in the ventilation duct 3a in the vicinity of the ventilation fan 3b (for example, on the suction side of the ventilation fan 3b), the inside air temperature sensor 2
At 0, a temperature as close as possible to the passenger compartment temperature in the vehicle can be detected, and the effect of the intermittent control can be further exerted.

In the case of this embodiment, the change in the vehicle interior temperature by the above control is as shown in FIG. At this time, the outside air temperature is 35 (° C.), and the vehicle interior temperature before the ignition key 7 is turned off is 25 (° C.). The solid line A in the figure indicates the temperature detected by the inside air temperature sensor 20 when 800 (W / m ² ) of solar radiation is applied to the rear of the vehicle interior, and the solid line B indicates the temperature of 800 (W / m ² ) in front of the vehicle interior. The detected temperature of the inside air temperature sensor 20 when the solar radiation is applied is shown. In addition, the dashed-dotted line C indicates the driver's seat, the passenger seat, and the rear seats (2 seats) for a total of 4 seats,
Shows the average temperature of the occupant's head, chest and thighs.

As shown by the solid line A, when the solar radiation is applied to the rear, the inside air temperature sensor 20 is provided in the ventilation duct 3a at the rear of the vehicle.
0 is easily affected by solar radiation, and a temperature higher than the one-dot chain line C is detected. Further, as shown by the solid line B, when the solar radiation is applied to the front, the temperature is lower than that of the one-dot chain line C, which is the reverse of the above case.

However, in any case, the intermittent temperature control allows the inside air temperature sensor 20 to detect a temperature substantially equal to the actual temperature of the passenger portion. That is, even if the vehicle interior temperature on the rear side of the vehicle is high or the vehicle interior temperature on the front side of the vehicle is high due to solar radiation, the inside air temperature sensor 20 can detect an almost accurate vehicle interior temperature by performing the intermittent control. You can Note that in FIG. 8, times t ₁ , t
₃ and t ₄ show intermittent control in the case of rear insolation, and times t ₂ , t ₅ , and t ₆ show intermittent control in the case of front insolation.

In each of the above embodiments, both the fans 1a and 3b are driven during the intermittent control, but only the fan 3b may be driven. Further, in each of the above embodiments, when performing the intermittent control, the air conditioner is in a mode for introducing outside air, and the ventilation device is in the above ventilation mode.However, the air conditioner is in the inside air mode for circulating the inside air, and the ventilation is performed. The device may be in the air cleaning mode. The point is that air may be convected in the vehicle compartment during intermittent control.

[Brief description of drawings]

FIG. 1 is a side view showing a mounting position of a vehicle ventilation device and a vehicle air conditioner on a vehicle according to an embodiment of the present invention.

FIG. 2 is a front view of a room lamp mounting portion 2 of the above embodiment.

FIG. 3 is a cross-sectional view showing a mounting state of the ventilation unit 3 of the above embodiment on a vehicle.

FIG. 4 is an electric circuit diagram of the above embodiment.

FIG. 5 is a flowchart of the air conditioning control device 9 of the above embodiment.

FIG. 6 is a graph showing the relationship between the time after the ignition key 7 of the embodiment is turned off and the temperature detected by the inside air temperature sensor 20.

FIG. 7 is a cross-sectional view showing a mounted state of an inside air temperature sensor 20 according to another embodiment of the present invention.

FIG. 8 is a graph showing the relationship between the time after the ignition key 7 is turned off and the temperature detected by the inside air temperature sensor 20 in the other embodiment.

[Explanation of symbols]

1 ... Air conditioning unit, 1a ... Air conditioning fan, 1b ... Fan motor, 2 ... Room lamp mounting part, 3 ... Ventilation unit,
3a ... Ventilation duct (ventilation passage), 3b ... Ventilation fan, 3
c ... Fan motor (ventilation fan driving means), 6 ... Main battery, 7 ... Ignition key, 8 ... Auxiliary battery, 9 ... Air conditioning control device, 11 ... Air purifier control device, 20 ... Interior temperature sensor (vehicle interior temperature detection) means)

Claims (4)

[Claims] 1. A ventilation passage for connecting a vehicle interior and a vehicle exterior, a ventilation fan provided in the ventilation passage, a ventilation fan driving means for driving the ventilation fan with electric power from a battery, and a vehicle interior temperature. The vehicle interior temperature detecting means for detecting, the parking determining means for determining whether or not the vehicle is parked, and if the parking determining means determines that the vehicle is parked, the ventilation fan is driven or stopped at a predetermined cycle. Intermittent control means for controlling the ventilation fan drive means so as to repeat intermittently, and detection for determining whether or not the temperature detected by the vehicle interior temperature detection means is equal to or higher than a predetermined temperature during the control of the intermittent control means. The temperature determining means, and when the detected temperature determining means determines that the detected temperature is equal to or higher than the predetermined temperature, controls the ventilation fan driving means to drive the ventilation fan. Vehicle ventilating device being characterized in that a ventilation start control means for. 2. When the parking determination means determines that the vehicle is parked, the second detected temperature determination means determines whether or not the temperature detected by the vehicle interior temperature detection means is equal to or higher than a second predetermined temperature. When the second detected temperature determining means determines that the detected temperature is equal to or higher than the second predetermined temperature, the intermittent control means performs control. Item 1. The vehicle ventilation device according to Item 1. 3. The ventilation device for a vehicle according to claim 1, wherein the vehicle interior temperature detecting means is provided on a ceiling of the vehicle. 4. The vehicle ventilation device according to claim 1, wherein the vehicle interior temperature detecting means is provided in the ventilation passage in the vicinity of the ventilation fan.