JPH11165530A - Ventilator for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress a rise in temperature effectively by introducing outside air into the inside of a vehicle, during parking. SOLUTION: An in-vehicle fan device 2 is provided which allows switching an air conditioning mode between an outside air introducing mode and an inside air circulation mode and allows switching an outlet position among a defroster side and a ventilate side and a floor side. A solar battery 18 transducing sunbeams to electric energy is provided on a roof 17 of a vehicle 1. A ventilation controlling means is provided for performing control to drive an in-vehicle fan device 2 by output of the solar battery 18. The ventilation controlling means switches an air conditioning mode to the outside air introducing mode and switches the outlet position to a ventilation side outlet 6 at the time of sending air. Outside air is blown out through the ventilation side outlet 6, so that the upper space in the vehicle 1 which reaches a high temperature can be ventilated with efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle ventilator for preventing a temperature inside a vehicle from increasing during parking.

[0002]

Conventionally, as this kind, Japanese Patent Publication No. 60-9929 discloses a solar cell mounted on a vehicle body for converting sunlight into electric energy.
Communication means for communicating between the vehicle interior and the trunk room;
A ventilator for an automobile, which is driven by the output of the solar cell and has a blower that exhausts the air in the passenger compartment to the outside of the vehicle through the communication unit and the trunk room, has been proposed. It is provided in the trunk room, and the ventilation means can be driven by the output of the solar cell irrespective of the vehicle-mounted storage battery, so that ventilation in the vehicle interior and the trunk room can be performed. In this automobile ventilator, a concave portion is formed by press working in a metal sun visor attached to the frame of the rear window, and the solar cell is housed in the concave portion (JP-A No. 4, 31-31). 34
Also, in the vehicle ventilator disclosed in Japanese Patent Publication No. Sho 62-60288, a solar cell is provided on an air rectifying plate.

Further, in the above-described Japanese Patent Publication No. 60-9929, the blower is fixed by a mounting stay inside a blower duct which is mounted on the back of a trunk lid of a trunk room (see column 5 of the publication). 1-4
Line), and an air vent opening into the trunk room is opened in the rear side wall of the vehicle cabin (column 4, lines 20 to 21). Also,
The switch uses a temperature-sensitive switch (publication column 6, lines 3 to 5) that is installed in a vehicle compartment or a trunk room and is closed when the temperature of the room rises to a predetermined temperature. Furthermore, Japanese Patent Publication No. 60-9929 discloses that an upper portion of the front window is opened by an appropriate amount, for example, about 5 to 8 mm (in the seventh column, lines 1 and 2) for introducing outside air. .

However, in the ventilation system disclosed in Japanese Patent Publication No. 60-9929, the ventilation means is provided in the trunk room, so that the ventilation means is provided in the trunk separately from the vehicle ventilation system, and the ventilation duct is provided. It is necessary to modify the trunk in order to provide it, and there is a problem that the space in the trunk is narrowed. Also, in order to enhance the ventilation effect, it is necessary to open the window and then leave the vehicle, which is troublesome.

When the vehicle is parked under the scorching sun, the temperature rise in the upper part of the vehicle becomes maximum.
In the ventilation device disclosed in Japanese Patent Application Publication No. 0-9929, even if the window is opened, the outside air flows from the opening of the window to the air vent on the rear side wall. As a result, the heat inside the vehicle cannot be efficiently discharged. In Japanese Patent Publication No. 60-9929, a solar cell is provided on a metal sun visor attached to a rear window frame. In Japanese Patent Publication No. 62-60288, a solar cell is provided on a rectifying plate. Since the visor and the rectifying plate are provided to be exposed outside the vehicle,
It is expected that the temperature of the visor and the rectifying plate will become high, and the temperature of the solar cell will also become high. When the temperature of the solar cell becomes high, there is a problem that the generation efficiency of electric energy is reduced.

Accordingly, an object of the present invention is to provide a vehicle ventilator that can effectively suppress an increase in the temperature inside a vehicle by introducing outside air into the vehicle during parking, and further aims to provide a solar battery. It is an object of the present invention to provide a vehicle ventilator that can efficiently use a vehicle.

[0007]

According to the first aspect of the present invention, there is provided an in-vehicle blower in which an air conditioning mode can be switched between an outside air introduction and an inside air circulation, and a blowing position can be switched between a defroster side, a ventilate side and a floor side. And a vehicle ventilation system having a solar cell for converting sunlight into electric energy provided in a vehicle, provided with ventilation control means for controlling the in-vehicle air blower to be driven by the output of the solar cell. The means switches the air conditioning mode to outside air introduction at the time of air blowing, and switches the blowing position to the ventilating side.

[0010] According to the configuration of the first aspect, the in-vehicle air blower of the vehicle is used, the in-vehicle air blower is driven by the output of the solar cell to perform ventilation, and the outside air is blown out from the ventilating side. The ventilation in the upper space inside the vehicle is efficiently performed.

According to a second aspect of the present invention, the solar cell is provided on a roof of the vehicle.

According to the structure of the second aspect, the ventilation in the upper space in the vehicle is efficiently performed, so that the temperature rise of the solar cell provided on the roof can be suppressed.

Further, the invention according to claim 3 is provided with a temperature sensor for measuring the temperature in the vehicle, and starts blowing when the temperature in the vehicle reaches a set temperature or higher.

According to this configuration, when the temperature inside the vehicle reaches the set temperature, the ventilation is automatically performed.

Further, the invention according to claim 4 is provided with an illuminance sensor for detecting illuminance, and the set temperature is controlled by the level of illuminance.

According to the configuration of the fourth aspect, when the illuminance is high during the daytime in the middle of summer, the temperature inside the vehicle rises quickly. When the illuminance is high, the set temperature is lowered and the ventilation is accelerated. Start.

According to a fifth aspect of the present invention, the temperature sensor is disposed at a position near a roof in a vehicle.

According to the fifth aspect of the invention, it is possible to measure the temperature of the high temperature area in the upper part of the vehicle.
Ventilation control can be performed according to the temperature in the high temperature region.

[0017]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 7 show an embodiment of the present invention, and a vehicle 1 provided with a vehicle ventilating device of the present embodiment.
Has an in-vehicle air blower 2, and as shown in FIGS. 1 to 3, the in-vehicle air blower 2 has a debloster-side outlet 5 and a ventilator-side blower An outlet 6 and a floor side outlet 7 are provided, and each of the outlets 5, 6, 7 is provided with an opening / closing member 5A, 6A, 7A which is opened or closed by an electric type or an outlet switching operation part 42, Inside the device 2, a heater core 8 having a switching member 8A for switching the air flow, a cooling heat exchanger 9, and a blower fan 10 are provided. An inlet 11 is provided upstream of the blower fan 10, and an inlet 11 is provided. 10 is provided with an electrically operated or electrically operated switching member 11A for switching the air conditioning mode between the outside air introduction and the inside air circulation by the air conditioning mode operation unit 41. The blower fan 10 is driven by a motor 12.

An opening / closing side window 15 is provided in the opening 14 of the side door 13 of the vehicle 1, and a visor 16 is fixedly provided on the side door 13 above the side window 15. The side window 15 is opened and closed by an electric opening and closing device 15A. A solar cell 18 using an amorphous solar cell is provided on a roof 17 of the vehicle 1. In this example, the illuminance sensor 19 is arranged near the solar cell 18.

A temperature sensor 20 is provided in the interior 3 of the vehicle.
By providing the temperature sensor 20 on the footrest 22 of the seat 21, the temperature sensor 20 is disposed near the roof 17. It is preferable that the temperature sensor 20 be disposed on the center side of the footrest 22 in the vehicle.

The in-vehicle air blower 2, the solar cell 18, the illuminance sensor 19, and the temperature sensor 20 are electrically connected to a ventilation control means 31 constituted by a microcomputer or the like, and correspond to the illuminance detected by the illuminance sensor 19. The detected signal and the detection signal corresponding to the vehicle interior temperature detected by the temperature sensor are output to the ventilation control means 31, respectively.

The vehicle ventilator of the present invention has an ignition switch detecting means 23, a voltage detecting means 24 for detecting the voltage of the solar cell 18, an air conditioning mode detecting means 25, and a manual switch 26. The ignition switch detection means 23 is for determining whether the engine is on or off. Generally, a key cylinder switch operated by a key can be used, and the ignition switch operation signal based on the on / off of the switch is transmitted to the ventilation switch. Control means
Output to 31. Further, the voltage detecting means 24 detects the voltage of the solar cell 18 and outputs a detection signal corresponding to this voltage to the ventilation control means 31. Further, the air-conditioning mode detecting means 25 detects the air-conditioning mode of the in-vehicle air blower 2 and the opening / closing of the air outlets 5, 6, and 7, and outputs these detection signals to the ventilation control means 31.

The ventilation control means 31 includes a voltage comparison means 32 for comparing the voltage V of the solar cell 18 with drive / stop setting voltages V1 and V2 (V1> V2), and changes an air conditioning mode to outside air introduction, Air-conditioning mode switching means 33 for controlling the ventilating side outlet 5 to be opened, the defroster side outlet 5 and the floor side outlet 7 to be closed, the in-vehicle temperature T based on the temperature sensor 20 and the drive / stop set temperature T1. , T2, and an illuminance comparison unit 35 for comparing the illuminance L based on the illuminance sensor 19 with the set illuminance L1.
Then, the ventilation control means 31 drives the blower fan 10 on condition that the voltage V is equal to or higher than the drive set voltage V1, and when the voltage V becomes equal to or lower than the stop set voltage V2, the blower fan 10 Before the blower fan 10 is driven, the air conditioning mode is switched to outside air introduction, and the opening / closing members 5A, 6A, 7A are operated to open the ventilating-side outlet 6; Control is performed so as to close the defroster-side outlet 5 and the floor-side outlet 7, and if the illuminance L is equal to or higher than the set illuminance L1, the drive set temperature T1 is controlled to be lowered.
Note that the voltage comparison means 32 includes drive and stop setting voltages V1 and V2.
Can be set arbitrarily and the set value is stored. The temperature comparison means 34 can set the drive and stop set temperatures T1 and T2 arbitrarily and store the set values. The illuminance comparison means 35 The set illuminance L1 can be set arbitrarily and the set value is stored. In the present embodiment, as a preferred example, the drive / stop setting voltages V1 and V2 are set to 12 volts, 1
0 volt, drive and stop set temperatures T1 and T2 at 35 ° C,
The setting illuminance L is set to 50,000 lux at 30 ° C.

Next, the operation of the apparatus will be described with reference to the flowchart of FIG. 4 showing the operation procedure of the ventilation control means 31. In the flowchart of FIG. 4, first, the ventilation control unit 31 determines whether the manual switch 26 is on or off (S · 1). If the manual switch 26 is on, based on the operation signal from the ignition switch detection unit 23, It is determined that the engine has stopped (S2). If the engine has stopped, the voltage V of the solar cell 18 is compared with the drive set voltage V1 by the voltage comparison means 32 of the ventilation control means 31 (S · 2).
3) If the voltage V of the solar cell 18 is equal to or higher than the drive voltage V1 (12 volts), then the ventilation control means 31 sets the in-vehicle air blower 2 to the air conditioning mode based on the detection signal from the air conditioning mode detection means 25. Detects the open / closed state of each outlet 5, 6, 7
These are compared with a state in which the outside air is introduced, the vent side outlet 6 is opened, and the other outlets 5 and 7 are closed (S · 4), and the air conditioning mode switching means 33 of the ventilation control means 31 sets the air conditioning mode. The outside air is introduced, the ventilating side outlet 6 is opened, and the other outlets 5, 7 are changed to the closed mode (S5). Next, the illuminance comparison means 35 of the ventilation control means 31 compares whether or not the illuminance L is equal to or more than the set illuminance L1 (50,000 lux) based on the detection signal of the illuminance sensor 19 (S.7). continue,
If the illuminance L is equal to or more than 50,000 lux, the ventilation control means 31 sets the drive set temperature T1 low (S · 7). If the illuminance L is less than 50,000 lux, the ventilation control means 31 sets the drive set temperature T1.
Is set to a preset 35 ° C. (S · 8). That is, in this example, since the temperature to be lowered Δt = 2 ° C., when the illuminance L is equal to or more than 50,000 lux, the drive set temperature T1
Is lowered by 2 ° C from 35 ° C to 33 ° C. next,
The temperature comparison means 34 of the ventilation control means 31 compares whether or not the vehicle interior temperature T based on the detection signal of the temperature sensor 20 is equal to or higher than the drive set temperature T1 (S6).
Is reached, it is determined whether or not the blower fan 10 is driven (S · 10). Since the blower fan 10 is initially stopped, the blower fan 10 is stopped by the output of the solar cell 18. It is driven (S · 11). Note that Δt is a temperature smaller than the difference between the set drive temperature T1 and the stop drive temperature T2.

When the blower fan 10 is driven, outside air is blown out from the ventilating side outlet 6 toward the lower area of the roof 17 of the vehicle interior 3, and an air flow is generated there.
Ventilation in the upper space inside the vehicle, which becomes hot, is performed efficiently. Further, when the illuminance L is high, the drive set temperature T1 for driving the blower fan 10 is controlled to be low. Therefore, when the illuminance L is large, the temperature T in the vehicle generally increases quickly.
By starting ventilation early, the heat inside the vehicle can be efficiently discharged.

Next, after the blower fan 10 is driven, the temperature comparison means 34 of the ventilation control means 31 compares the in-vehicle temperature T with the set stop temperature T2 (S12), and the in-vehicle temperature T becomes the set stop temperature T2. If the engine has stopped, it is determined whether or not the engine has stopped (S13). If the engine has stopped, the voltage V of the solar cell 18 is compared with the stop setting voltage V2 (10 volts). Then, while the voltage V exceeds the stop set voltage V2, the process returns to (S · 10).

On the other hand, a comparison between the voltage V of the solar cell 18 and the stop set voltage V2 (10 volts) (S · 14) shows that the voltage V
Is less than the stop set voltage V2, the blower fan 10
Is stopped (S · 15), and the process returns to before the comparison (S · 12). By setting the stop setting voltage V2 of the blower fan 10 lower than the drive setting voltage V1, the drive setting voltage V
The intermittent operation of the motor 12 due to a voltage change near 1 is prevented. For example, even if the sun is shaded due to the movement of clouds or the like, the motor 12 does not stop every time if it is temporary, so that the durability of the motor 12 is not impaired. Further, even when the blower fan 10 is stopped (S · 15), if the vehicle interior temperature T is equal to or higher than the stop set temperature T2 (S · 12) and the engine is stopped (S · 13), the comparison (S · 14) is performed. ), The voltage V
Exceeds the stop set voltage V2, the blower fan 10 is driven again (S.11).

After the blower fan 10 is driven, the temperature comparison means 34 of the ventilation control means 31 compares the in-vehicle temperature T with the set stop temperature T2 (S.12). , The ventilation control means 31
Is stopped (S16). After the blower fan 10 is driven, the ventilation control means 31 determines that the in-vehicle temperature T has reached the set stop temperature T2.
If it exceeds, it is determined that the engine has stopped (S.1
3) If the engine is not stopped, blower fan 1
Stop 0 (S16). The case where the engine is driven is, for example, a case where the driver returns to the parked vehicle 1 and starts the engine.

The above flowchart shown in FIG. 4 is repeated repeatedly while the manual switch 26 is on and the engine is stopped.

In order to detect the air conditioning mode of the in-vehicle air blower 2 and the opening / closing of the air outlets 5, 6, and 7, the operation lever, knob, switch, etc. on the front of the instrument panel 4, as shown in FIG. The air conditioning mode operation unit 41 and the air outlet switching operation unit 42 can be used, and the air conditioning mode operation unit 41 drives the switching member 11A to switch between outside air introduction and inside air circulation, and the air outlet switching operation unit 42 Is the opening / closing member 5
A, 6A, and 7A are driven to switch the opening and closing of the outlets 5, 6, and 7. And the air-conditioning mode operation unit 41
And the mode of the air outlet switching operation section 42 is detected by the air conditioning mode detection means 25, and the air conditioning mode operation section 41 and the air outlet switching operation section 42 are controlled by the air conditioning mode switching means 33.
May be switched to the outside air introduction and the ventilation only from the ventilating side outlet 6.

Next, with reference to FIGS. 6 and 7, the operation of the vehicle interior ventilation according to the present invention will be described. As shown in FIG. 6, the temperature is measured at a point C near the roof 17 in the vehicle interior 3, a point F near the floor, and a point S substantially at the center in the height direction. FIG. 7 is a graph showing the relationship between temperature and time when the air conditioner cooling operation is performed using the means 9. As shown in the graph, generally, when the vehicle 1 is parked under the scorching sun or the like, the temperature at the point C near the roof 17 becomes maximum. On the other hand, as shown in FIG. 6, by blowing the outside air from the ventilating-side outlet 6, an air flow is generated at a lower portion of the roof 17, and the temperature rise near the point C can be efficiently suppressed. it can. In addition, since a rise in the temperature of the roof 17 can be suppressed, a decrease in the output of the solar cell 18 due to the rise in the temperature can also be suppressed.

As described above, in this embodiment, the air conditioning mode can be switched between the outside air introduction and the inside air circulation, and the outlet position can be switched between the defroster side, the ventilate side, and the floor side. Ventilation control means for controlling the vehicle air blower 2 to be driven by the output of the solar cell 18 in a vehicle ventilator provided in the vehicle 1 with the vehicle air blower 2 and a solar cell 18 for converting sunlight into electric energy. The ventilation control means 31 switches the air conditioning mode to outside air introduction at the time of air blowing, and switches the air outlet position to the ventilating side air outlet 6.
The ventilation device 2 is driven by the output of the solar cell 18 to perform ventilation, and the outside air is blown out from the ventilating-side outlet 6, so that it is possible to efficiently ventilate the high temperature interior space of the vehicle. . Therefore, even if the air conditioner is used after the engine is started, the load on the air conditioner can be reduced, the fuel efficiency can be prevented from deteriorating due to the high temperature inside the vehicle, and the compressor used for the air conditioner can be of small capacity.

Further, as described above, in this embodiment, claim 2
Since the solar cell 18 is provided on the roof 17 of the vehicle 1 corresponding to the above, the temperature rise of the solar cell 18 provided on the roof 17 can be suppressed by efficiently ventilating the upper space inside the vehicle 3. And a decrease in the output of the solar cell 18 due to a rise in temperature can be suppressed.

Further, in this embodiment, the temperature sensor 20 for measuring the temperature of the vehicle interior 1 is provided according to the third aspect of the present invention, and when the vehicle interior temperature T reaches the set temperature T1 or more, air blowing is started. Therefore, when the temperature inside the vehicle 3 reaches the set temperature T1, ventilation is automatically performed.

Further, as described above, according to the present embodiment, the illuminance sensor 19 for detecting the illuminance L is provided in the present embodiment.
Since the set temperature T1 is controlled by the level of the illuminance L, when the illuminance L is high in the middle of the summer, for example, the vehicle interior temperature T rises quickly. Is started earlier, thereby effectively suppressing the temperature rise in the vehicle.

As described above, in the present embodiment, claim 5
Since the temperature sensor 20 is disposed in the vicinity of the roof 17 in the vehicle interior 3 corresponding to the above, the temperature of the high temperature region in the upper part of the vehicle interior can be measured, Ventilation control.

As an effect of the embodiment, a temperature sensor
By providing the front seat 20 with the headrest 22, the vehicle interior temperature T near the roof 17 having a high temperature rise rate can be measured. Further, if the air-conditioning mode detecting means 25 detects the modes of the air-conditioning mode operation unit 41 and the air outlet switching operation unit 42, it is possible to easily detect the modes of the outside air introduction, the inside air circulation and the blowing position, and The mode can be switched by operating the mode operation unit 41 and the outlet switching operation unit 42 under the control of the air conditioning mode switching unit 33.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, the mounting position of the illuminance sensor can be appropriately selected. Further, the second set illuminance L2 (L2
Using <L1), when the illuminance L is equal to or less than the second set illuminance L2, the control may be performed such that the set temperature is T1 + Δt. Further, the temperature sensor is not limited to the inside of the vehicle, and may be provided outside the vehicle.

[0038]

According to the first aspect of the present invention, there is provided an in-vehicle blower capable of switching an air-conditioning mode between outside air introduction and internal air circulation and switching a blowing position between a defroster side, a ventilator side, and a floor side, and a solar light line. In a vehicle ventilation device provided with a solar cell that converts air into electric energy, the vehicle has ventilation control means for controlling the output of the solar cell to drive the in-vehicle air blower. At the same time, the air conditioning mode is switched to the introduction of outside air, and the outlet position is switched to the ventilating side. During parking, for a vehicle that can introduce outside air into the vehicle and effectively suppress a rise in the temperature inside the vehicle. A ventilator can be provided.

According to a second aspect of the present invention, the solar cells are provided on the roof of the vehicle, so that the solar cells can be used efficiently, and the outside air is introduced into the vehicle during parking while the vehicle is parked. It is possible to provide a vehicle ventilation device capable of effectively suppressing a rise in temperature.

Further, the invention according to claim 3 is provided with a temperature sensor for measuring the temperature in the vehicle, and starts blowing air when the temperature in the vehicle reaches a set temperature or higher. When parking, outside air is introduced into the vehicle. As a result, it is possible to provide a vehicle ventilation device capable of effectively suppressing an increase in the temperature inside the vehicle.

Further, the invention of claim 4 is provided with an illuminance sensor for detecting the illuminance, and the set temperature is controlled by the level of the illuminance, so that the solar cell can be used efficiently, and It is possible to provide a vehicle ventilation device that can effectively suppress an increase in the temperature of the vehicle by introducing outside air into the vehicle.

According to a fifth aspect of the present invention, the temperature sensor is arranged at a position near the roof in the vehicle, so that the solar cell can be used efficiently, and
It is possible to provide a vehicle ventilation device that can effectively suppress an increase in the temperature of the vehicle by introducing outside air into the vehicle.

[Brief description of the drawings]

FIG. 1 is a block diagram of ventilation control means showing one embodiment of the present invention.

FIG. 2 is a side view of a vehicle showing one embodiment of the present invention.

FIG. 3 is a sectional view of an in-vehicle air blower showing one embodiment of the present invention.

FIG. 4 is a flowchart illustrating an operation of ventilation control means according to an embodiment of the present invention.

FIG. 5 is a block diagram related to an air-conditioning mode operation unit and an air outlet switching operation unit according to an embodiment of the present invention.

FIG. 6 is a sectional view of a vehicle showing one embodiment of the present invention.

FIG. 7 is a graph showing a relationship between an in-vehicle temperature and an air-conditioner cooling time according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle 2 In-vehicle blower 3 In-vehicle 6 Ventilation side outlet 17 Roof 18 Solar cell 19 Illuminance sensor 20 Temperature sensor 31 Ventilation control means L Illumination L1 Set illuminance

Claims (5)

[Claims] 1. An in-vehicle air blower capable of switching an air conditioning mode between introduction of outside air and circulation of inside air, and capable of switching a blowing position between a defroster side, a ventilate side, and a floor side, and a sun that converts sunlight into electric energy. In a vehicle ventilator provided with a battery and a vehicle, ventilation control means for controlling the inside air blower to be driven by the output of the solar cell is provided, and the ventilation control means sets the air-conditioning mode to the outside air introduction when blowing air. And the ventilating position is switched to the ventilating side. 2. The vehicle ventilation device according to claim 1, wherein the solar cell is provided on a roof of the vehicle. 3. The vehicle ventilating device according to claim 1, further comprising a temperature sensor for measuring the temperature in the vehicle, and starting air blowing when the temperature in the vehicle reaches a set temperature or higher. 4. The vehicle ventilator according to claim 3, further comprising an illuminance sensor for detecting illuminance, wherein the set temperature is controlled according to the level of the illuminance. 5. The vehicle ventilator according to claim 1, wherein the temperature sensor is disposed near a roof in the vehicle.