JPS6349518A - Air cleaner for vehicle - Google Patents

Abstract

PURPOSE:To improve comfortableness by switching a damper to a ventilation port communicating duct side by the action of a shape memory alloy when the temperature in the car compartment rises when the car is in parking and automatically carrying out ventilation by driving a blower. CONSTITUTION:A cleaner case 110 having an inside air intake port on one side surface and a car compartment blow-out port 113 on the front surface and an air ventilating port 111 on the bottom surface is installed, and a blower 300 is arranged inside the case 110. The discharge port 301a of the blower 300 is connected with a branched duct 123 communicating to a car compartment communicating duct 121 and a ventilating port communicating duct 122, and a damper 500 is installed into the branched duct 123. The damper 500 is switching-operated to the state where the duct 122 is opened through a lever 601, using a coil which is made of shape memory alloy 602 and is extended when the environmental temperature rises over a prescribed value, as driving source. Ventilation is executed by driving the blower 300, interlocked with the switching operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air cleaner that purifies and ventilates the air inside a vehicle.

[Prior Art] When a car is parked outdoors in the hot summer sun for a long time, the width of the sun's rays causes the interior of the car to become ili'! It becomes an i-vortex state.

This causes great discomfort to passengers during boarding, and also makes it difficult for the air conditioning system to start cooling.
There were problems such as items placed inside the vehicle becoming deteriorated or rotting.

Conventionally, when a vehicle is parked, the interior of the vehicle is ventilated.
BACKGROUND ART Devices have been proposed that purify the air inside a vehicle while the vehicle is running.

[Problems to be solved by the invention] However, conventional devices that combine an air purifier and a ventilation device have very poor operability because switching between ventilation and air purification is done manually. It had some problems.

The present invention has been made in view of the above circumstances, and its purpose is to provide an air cleaner with excellent operability that automatically switches between ventilation and air purification.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an inlet for sucking air inside the vehicle interior, a ventilation port for discharging the air sucked from the inlet to the outside of the vehicle interior, and The air you inhale through your mouth? an air purifier case equipped with an air outlet into the vehicle interior; an air purifying means provided within the air cleaner case for purifying the air flowing out from the air outlet in the vehicle interior; A blower is provided in the air cleaner case and sucks air from the intake port, and a blower is provided in the air purifier case, and by being displaced, the blade of the blower directs the emitted air to the ventilation port or into the vehicle interior. supply direction switching means for switching and supplying air to one of the air outlets; and a shape that is deformed by an upper limit of temperature in the vehicle interior to displace the supply direction switching means and guide air discharged from the blower to the ventilation port. A driving means using a memory alloy and a detection means for detecting the displacement position of the supply direction switching means are provided, and when the supply direction switching means is in a position to guide the air discharged from the blower to the ventilation opening, The technical means is that it is equipped with an electric control circuit that drives the wind shore.

[Function] By employing the above means, the present invention allows the shape memory alloy to guide the air discharged from the blower to the ventilation opening when the humidity inside the vehicle rises above the transformation temperature of the shape memory alloy of the drive means. , displacing the supply direction switching means.

When the supply direction switching means is displaced so that the air discharged by the blower is guided to the ventilation port, the detection means detects that the supply direction switching means is set to guide the air discharged from the blower to the ventilation port, and the Drive I[.

As a result, when the temperature inside the vehicle increases, the air inside the vehicle is automatically sucked in through the intake port of the air purifier case and exhausted through the ventilation port.

When the blower is operated when the temperature inside the passenger compartment is low, such as when the vehicle is running, the supply direction switching means is displaced by the spring member, negative pressure, motor, etc. so as to guide the air discharged by the blower to the air outlet in the passenger compartment. The air inside the vehicle that is sucked in through the suction port of the purifier case passes through the air purifying means, and then is discharged from the indoor air outlet II to purify the air inside the vehicle.

[Effects of the Invention] As described above, according to the present invention, when the vehicle is parked, the operator does not have to perform the conventional cumbersome manual switching, and when the interior of the vehicle becomes hot, the ventilation inside the vehicle is automatically performed. It can significantly improve your sexuality.

[Embodiment 1] Next, a vehicle air cleaner of the present invention will be described based on an embodiment shown in the drawings.

1 to 3 show a vehicle air cleaner 10 of the present invention.
0 is the back seat 201 and rear window 2 of the car 200
02 or assembled on the upper surface of the tray 203. This rear tray 203 is the rear seat 2
01 and the rear window 202 is supported by a lever panel 204. Further, the rear tray 203 and the rear panel 204 are provided with a ventilation hole 205 in which the ventilation opening 111 of the lower purifier case 110 is arranged.

The cleaner case 110 of the air cleaner 100 is located at the front (first
It is a box body whose sides (left side in the figure) and rear (right side in Figure 1) are inclined.
It is installed by This purifier case 110 is
Inlet port 1 on one side for sucking air inside the vehicle interior (inside air)
12, and a vehicle interior air outlet 11 on the front inclined surface.
3, and further includes a ventilation port 111 on the bottom. Inside the purifier case 110, there is a scroll case 301, a sirocco fan 302, and a drive motor 303.
A blower 300 consisting of:

Air outlet 3 of scroll case 301 of this blower 300
A branch duct 01a branches the air discharged from the air outlet 301a into a vehicle interior communication duct 121 that communicates with the vehicle interior air outlet 113 of the purifier case 110 and a ventilation port communication duct 122 that communicates with the ventilation port 111. 123.

Inside the vehicle interior communication duct 121, a filtration-type purification filter 400 containing activated carbon or the like, which is an air purification means of the present invention, is arranged, and purifies the air passing through the vehicle interior communication duct 121.

Further, the ventilation port 111 of the purifier case 110 is connected to one opening 131 of an exhaust duct 130 attached to the lower surface of the rear panel 204. This exhaust duct 13
The other opening 132 of 0 is an existing ventilation opening 207 provided on the outer surface of the rear side pillar 206 of the automobile 200.
It is set up so that it communicates with the

This ventilation port 207 is provided to ventilate the interior of the vehicle.Since the air in the vehicle interior is released from the existing ventilation port 207, the air purifier 100 can be installed in the vehicle without making any major modifications to the vehicle body. It can be easily installed on.

Further, inside the branch duct 123, a damper 500, which is a supply direction switching means according to the present invention, is arranged. By rotating (displacing) this damper 500, it closes either the vehicle interior communication duct 121 or the ventilation port communication duct 122, and directs the air discharged from the air outlet 301a of the blower 300 to the ventilation port 111 or the vehicle interior air outlet 113. Switch to one side and supply.

This damper 500 is fixed to a shaft 501 rotatably supported by the branch duct 123. A lever 601 is fixed to this shaft 501, and by operating the lever 601, the damper 500 is driven.

This lever 601 is equipped with a shape memory alloy 602 that changes into an elongated coil shape as shown by the solid line in FIG. 4 when the environmental temperature rises above a predetermined temperature (preset transformation temperature). One end is attached. The other end of this shape memory alloy 602 is a branch duct 123.
is fixed to the side of the

Further, one end of a tension coil spring 603 that attempts to return to the state indicated by the broken line in FIG. 4 is attached to the lever 601. The other end of this tension coil spring 603 is fixed to the side surface of the branch duct 123.

As a result, when the environmental temperature of the shape memory alloy 602 rises above a predetermined temperature, the shape memory alloy 602 changes into an extended coil shape as shown by the solid line in FIG. The damper 500 closes the vehicle interior communication duct 121.

Further, when the environmental temperature of the shape memory alloy 602 falls below a predetermined temperature, the tension coil spring 603 is activated by the lever 60.
1, the lever 601 is moved to the position indicated by the broken line in FIG. 4, and the damper 500 closes the ventilation port communication duct 122. These levers 601, shape memory alloys 602, and tension
The driving means 60 of the present invention is
0 is configured.

A microswitch 701 is attached to the side surface of the vehicle interior communication duct 121, and is turned on by being biased by a lever 601 that works with the damper 500. When the lever 601 is moved to a position where the damper 500 closes the vehicle interior communication duct 121, the microswitch 701 Switch 701 is turned on.

On the other hand, a solar cell 702 made of amorphous silicon, silicon single crystal, polycrystalline, etc. is attached to the rear slope of the purifier case 110, and the rear window 202
Generates electricity using more incident light.

FIG. 5 shows an electric circuit 700 of this embodiment.

This electric circuit 700 includes a relay 710 that switches between a secondary power source 704 consisting of a solar cell 702 and a secondary battery 103 that is charged by the solar cell 702, and a battery 705 that is a vehicle power source that is charged when the vehicle is running. Be prepared. This relay 710 is connected to the engine key switch 720.
a relay coil 711 that is energized by selecting an ignition terminal 721 in which is the engine operating position;
A relay switch 712 is provided, which is switched by energizing or de-energizing the relay coil. When this relay coil 711 is energized, the relay switch 712 is switched so that the drive motor 303 is energized with the battery 705, and when the relay coil 711 is de-energized, the relay switch 712 is switched so that the drive motor 303 is connected to the battery 705. Switch to connect to electric gi704.

Further, a microphone [1 switch 101 is provided between the secondary power source 704 and the relay switch 712, and a damper 500
The secondary power source 704 is provided so that power from the secondary power source 704 is not supplied to the drive motor 303 unless it is set in a position that blocks the vehicle interior communication duct 121.

Furthermore, the ignition terminal 121 and the relay switch 7
12, the relay switch 7 is operated by the vehicle occupant.
Drive motor 303 and battery 7 regardless of switching of 12
A manual switch 706 is provided to de-energize 05 and 05.

Note that the secondary battery 703 is a backup power source, and the secondary battery 703 is a backup power source.
04 to drive the drive motor 303, the solar cell 70
2, and when the relay coil 711 is not energized or the manual switch 706 is OFF, it is charged by the solar cell 702 and stores power. Note that 702a indicates that the current of the secondary battery 703 is the same as that of the solar cell 702.
This is a diode that prevents water from flowing into the air.

Next, the operation of the above embodiment will be explained.

b) The temperature inside the vehicle is the transformation temperature of the shape memory alloy 602 (
For example, if the temperature is lower than 40°C.

The shape memory alloy 602, which does not reach the transformation temperature, is relatively soft, so the lever 601 is pulled by the tension coil spring 603.
4, and the damper 500 closes the ventilation opening communication duct 122.

Therefore, when the vehicle is driven while the temperature inside the vehicle is lower than the transformation temperature of the shape memory alloy 602, the key switch 720 is set to the ignition terminal 721, and the relay coil 711 is energized. Then, relay switch 7
12 is set to the state indicated by the solid line in FIG. 5 in which the drive motor 303 and battery 705 are energized.

Then, when the vehicle occupant turns on the manual switch 706,
Drive motor 303 is electrically connected to battery 705, and sirocco fan 302 rotates. As a result, the air purifier 10
0 sucks the air in the vehicle interior through the suction port 112 of the purifier case 110, guides it into the vehicle interior communication duct 121, passes it through the purification filter 400 to purify it, and then returns it to the vehicle interior through the vehicle interior air outlet 113. Blows out and purifies the air inside the vehicle.

Further, when the manual switch 706 is turned on, the drive motor 303 is de-energized and the air purifier 100 does not purify the air inside the vehicle.

Furthermore, when the vehicle is parked when the temperature inside the vehicle is lower than the transformation temperature of the shape memory alloy 602, the relay coil 711 is The relay switch 712 is set to the state shown by the broken line in FIG. 5 in which the drive motor 303 and the secondary power source 704 are energized.
Since the microswitch 701 is turned off, the secondary power supply 704 and the drive motor 303 are not energized, and the air purifier 100 performs purification and ventilation of the air inside the vehicle. Don't do it.

口) The temperature inside the vehicle is the transformation temperature of the shape memory alloy 602 (
For example, if the temperature is higher than 40℃).

The shape memory alloy 602 that has reached the transformation temperature changes its shape from the state shown by the broken line in FIG. 4 into an extended coil shape as shown by the solid line against the force of the tension coil spring 603.

As a result, the lever 601 rotates to the position shown by the solid line in FIG. 4, the damper 500 closes the vehicle interior communication duct 121, and the microswitch 701 is biased by the lever 601 and turned on.

As described above, when the vehicle is driven in a state where the humidity in the vehicle interior is higher than the transformation temperature of the shape memory alloy 602, the key switch 720 is set to the ignition terminal 721 and the relay coil 711 is energized. Then, even though the microswitch 701 is ON, the relay switch 712 is set to the state indicated by the solid line in FIG. 5 in which the drive motor 303 and the battery 105 can be energized.

Then, when the vehicle occupant turns on the manual switch 706,
The drive motor 303 is electrically connected to the battery 705 and drives the sirocco fan 302 to rotate. As a result, the air purifier 100 inhales air from the vehicle interior through the suction port 112 of the purifier case 110 and
The gas is discharged into the exhaust duct 130.

Then, the air discharged into the exhaust duct 130 is
32 and is discharged to the outside of the vehicle from the exhaust port 207 of the side pillar 206.

When the vehicle is running, when the temperature inside the vehicle becomes lower than the transformation temperature of the shape memory alloy 602 due to ventilation by the air purifier 100, the lever 601 is moved to the fourth position by the tension coil spring 603.
It rotates to the position indicated by the broken line in the figure, and then purifies the air inside the vehicle.

Further, when the manual switch 706 is turned off while the vehicle is running, the drive motor 303 is de-energized and the air purifier 10
0 does not ventilate or purify the air inside the vehicle.

On the other hand, when the vehicle is parked, the temperature inside the vehicle increases due to the shape memory alloy 602.
If the temperature rises above the transformation temperature of
is set to the F terminal 722, which is the engine stop position, so the relay coil 711 is de-energized and the relay switch 712 is turned on, as shown by the broken line in FIG. set to state. At this time, since the microswitch 701 is biased by the lever 601 and set to the ON state, the drive motor 303 is energized by the secondary power source 704.

As a result, the drive motor 303 rotates the sirocco fan 302 without consuming the power of the battery 705. The air purifier 100 includes a purifier case 110.
The air inside the vehicle is inhaled through the intake port 112 of the
1 into the exhaust duct 130.

The air discharged into the exhaust duct 130 is then discharged to the outside of the vehicle from the exhaust port 207 of the side pillar 206.

When the vehicle is parked, when the temperature inside the vehicle becomes lower than the transformation temperature of the shape memory alloy 602 due to ventilation by the air purifier 100, the lever 601 is moved to the fourth position by the tension coil spring 603.
The microswitch 701 is turned to the position shown by the broken line in the figure.
The drive motor 303 is turned off, and the drive motor 303 is de-energized, and ventilation in the vehicle interior is stopped.

As described above, for example, when a car is parked outdoors in the hot summer sun for a long time, ventilation is automatically performed when the temperature inside the car rises without having to manually switch the air purifier 100 to ventilation each time. is always kept low, which can prevent passengers from feeling uncomfortable during boarding, and can improve the start-up of the cooling effect of the air conditioner.

Since the damper 500 is driven by the shape change of the shape memory alloy 602, the air outlet 301a of the scroll case 301 and the ventilation port communication duct 122 can be communicated without consuming power from the battery 705 or the like.

Since the secondary power source 704 and the battery 705 are switched depending on the set position of the key switch to energize the drive motor 303, the power consumed by the secondary power source 704 can be kept low.

Furthermore, during ventilation, the power supply 300 is operated using electrical energy from sunlight, so there is no risk of over-discharge of the battery 705 even when the vehicle is parked for a long time.

Furthermore, in this case, in addition to the solar cell 702, the blower 300 is driven with the assistance of a secondary battery 703 charged with electrical energy from sunlight, so it is possible to drive the blower 300 with sufficient electric power. .

(Modification) Although the driving means in the above embodiment is a combination of a tension coil spring and a shape memory alloy, it may also be combined with a spring member such as a compression coil spring, a leaf spring, or a torsion spring, or a negative pressure The actuator or motor may be combined with a shape memory alloy, or a two-way bamboo shape memory alloy may be used to omit the spring member.

Although a damper is used as the supply direction switching means, the scroll case may be rotated to connect the air outlet of the scroll case to the ventilation port or the vehicle interior air outlet.

Although the displacement position of the supply direction switching means was detected by the position of the lever, it may also be detected by the rotational position of the damper or scroll case. Further, in addition to the microswitch, the displacement position of the supply direction switching means may be detected by optical detection using a photocoupler or the like.

An example of using a filtration type air purification method was shown, but
Other air purification means such as electrostatic type may also be used.

An example was shown in which the air purifier was placed on the rear tray behind the rear seat.1. It can be placed in other locations such as the vehicle ceiling or inside the instrument panel.

[Brief explanation of the drawing]

1 and 2 are side sectional views of the air cleaner, FIG. 3 is a perspective view of the air cleaner, FIG. 4 is a side view of the driving means, and FIG. 5 is a circuit diagram of the electric control circuit.

Claims (1)

[Scope of Claims] 1) (a) An intake port that sucks air inside the vehicle interior, a ventilation port that discharges the air sucked from the intake port to the outside of the vehicle interior, and an air intake port that discharges the air sucked from the intake port into the vehicle interior. (b) an air purifying means provided in the air purifier case for purifying the air flowing out from the vehicle interior outlet; (c) the air (d) a blower provided in the air purifier case and sucking air from the suction port;
or a supply direction switching means that switches and supplies the air to one of the air outlets in the vehicle interior; (f) a detection means for detecting a displacement position of the supply direction switching means, and the supply direction switching means directs the air discharged from the blower to the ventilation opening. and an electric control circuit that drives the blower when the blower is in a position to guide the blower. 2) The electric control circuit drives the blower using the vehicle power source when the key switch is set to the engine operating position, and when the key switch is set to the engine stop position, and the supply direction switching means is configured to Claim 1, characterized in that the blower is configured to be driven by a solar cell that converts sunlight into electrical energy when the blower is in a position to guide air discharged from the blower to the ventilation opening. The vehicle air purifier described. 3) Claim 1 or 2, wherein the supply direction switching means is a damper that blocks either a duct communicating with the ventilation port or a duct communicating with the vehicle interior air outlet. Vehicle air purifier described in. 4) The driving means includes a shape memory alloy having one end attached to the supply direction switching means or an interlocking member interlocking with the supply direction switching means, and a spring having one end attached to the supply direction switching means or the interlocking member. An air cleaner for a vehicle according to any one of claims 1 to 3, characterized in that it consists of a member. 5) The detection means is turned ON by being biased by the supply direction switching means or a member interlocked with the supply direction switching means.
An air cleaner for a vehicle according to any one of claims 1 to 4, characterized in that the air cleaner is a microswitch that performs. 6) The air purifier for a vehicle according to any one of claims 1 to 5, wherein the air purifying means is a filtration type purifying filter containing activated carbon.