JPH0751593A - Air cleaning apparatus - Google Patents

Abstract

PURPOSE:To wind up automatically a dust collecting paper on which dust in the air adheres. CONSTITUTION:The air cleaning apparatus. consists of a feeding reel 6 on which a dust collecting paper A on which dust floating in the air adheres is wound, a wind-up reel 8 for winding up the dust collecting paper A pulled out of the feeding reel 6, a wind-up mechanism 3 for rotating and driving the wind-up reel 8 in the wind-up direction, and a control part 4 for controlling wind-up motion of the dust collecting paper A by the wind-up mechanism 3. The wind-up reel 8 is rotated and driven by a definite amt. by means of a geared motor 12 with a slow speed in the wind-up direction to wind up gradually the dust collecting paper while it is mounted on a guide part 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaning device, and more particularly to an air cleaning device configured to automatically wind up dust collecting paper to which dust particles in the air adhere.

[0002]

2. Description of the Related Art As a conventional air cleaning device, there is, for example, the device disclosed in Japanese Patent Laid-Open No. 2-198650 previously proposed by the present applicant.

This electrostatic air purifying apparatus is provided with an ionization electrode (cathode) for ionizing dust particles floating in the air and a dust collecting electrode (anode) for adsorbing ionized particles, A dust collecting paper is interposed between both electrodes so as to cover the surface of the dust collecting electrode, and the ionized dust is adhered to the surface of the dust collecting paper. When potentials are set on both electrodes, lines of electric force are generated from the ionization electrode toward the dust collecting electrode, which causes an ionic wind flowing between the electrodes. Due to this ionic wind, ambient air flows into the device, passes through the surface of the dust collecting paper, and flows out to the outside. When dust in the air flowing into the device comes into contact with gas ions and electrons generated by discharge, it is negatively charged, moves toward the dust collecting electrode side, and adheres to the dust collecting paper.

Further, the dust-collecting paper is wound in a roll shape, appropriately pulled out by a manual operation, and wound so as to cover the surface of the dust-collecting electrode.

[0005]

However, in the above-mentioned device, the dust collecting effect gradually decreases as the dust adheres to the dust collecting paper, and eventually the dust collecting paper becomes clogged so that clean air cannot be generated. . Therefore, in the air purifier, in order to maintain a constant air purification performance, about 2-4
It is necessary to replace the dust collecting paper every week. However, conventionally, after removing the cover, the used dust collecting paper is discarded, and then the dust collecting paper wound in a roll is pulled out by hand and a new dust collecting paper is wound around the surface of the dust collecting electrode. However, there is a problem that not only is the task of exchanging the dust collecting paper troublesome, but also the user may forget to replace the dust collecting paper.

In another device, a sheet-shaped dust collecting paper
Although there is a configuration in which the dust collecting papers are replaced one by one, it is necessary to remove a stopper that locks the sheet-shaped dust collecting papers to the housing or the like, which causes a problem that it takes time to replace the dust collecting papers.

[0007] In particular, when the above air cleaning device is used in a leasing business, there is also a problem that maintenance personnel must regularly visit the installation place of each air cleaning device.

Therefore, an object of the present invention is to provide an air cleaning device that solves the above problems.

[0009]

According to the present invention, there is provided a supply reel around which dust collecting paper for adhering dust floating in the air is wound, and a take-up reel for winding up the dust collecting paper pulled out from the supply reel. In an air purifying device having a winding mechanism that rotates the winding reel in a winding direction, the winding mechanism is configured to cause the dust collecting paper wound around the supply reel to travel at a low speed toward the winding reel. It is characterized by comprising a control means for driving and controlling.

[0010]

[Operation] By rotating the take-up reel in the take-up direction at a low speed (slow speed) by the take-up mechanism, the dust-collecting paper wound on the supply reel is gradually pulled out, and the dust-collecting paper is automatically drawn on the take-up reel. Can be wound up, and the troublesome dust collecting paper replacement work can be eliminated for a long time.

[0011]

1 to 4 show an embodiment of the air cleaning apparatus according to the present invention.

In each figure, the air purifying device is an electrostatic air purifying device having an ionizing electrode and a dust collecting electrode as will be described later, and a dust collecting unit 2 is provided on the upper part of the device body 1 to A dust collecting paper winding mechanism 3 and a control unit (control means) 4 for driving and controlling the dust collecting paper winding mechanism 3 are provided inside.

The dust collecting unit 2 includes a dust collecting paper roll 5 on the supply side around which unused dust collecting paper A is wound, a supply reel 6 on which the dust collecting paper roll 5 is mounted, and a used dust collecting paper A. A winding-side roll 7 that is wound, a winding reel 8 on which the winding-side roll 7 is mounted, and a guide that guides the dust collecting paper A that is mounted between the supply reel 6 and the winding reel 8. It has a part 9, an ionization electrode 10 and a dust collecting electrode 11 provided on the guide part 9. The guide portion 9 is formed in an isosceles triangle shape as shown in FIG. 2, and the ionization electrode 10 and the dust collection electrode 11 are provided on the long side portion of the isosceles triangle.

The dust collecting paper winding mechanism 3 is composed of a geared motor 12 having a speed reducer built therein and a motor controller 13 for controlling the rotation of the geared motor 12. Motor controller 13
Controls the rotation speed of the output shaft 12a of the geared motor 12 according to an instruction from the operation control circuit 14 described later.

The output shaft 12a of the geared motor 12 engages with the lower end of the take-up reel 8 and transmits the rotational driving force of the geared motor 12 to the take-up reel 8. The reduction ratio of the geared motor 12 is set such that the take-up reel 8 rotates at a low speed at a speed at which the dust collecting paper A on the supply reel 6 side can be taken up by about 2 to 3 cm per day.

The take-up reel 8 is a geared motor 12
It is mounted so as to engage with the output shaft 12a only in the rotational direction and can be separated in the axial direction. That is, when all the dust collecting paper A on the supply reel 6 is wound up, the winding reel 8
Is pulled up and replaced with a new one. The supply reel 6 to which the dust collecting paper roll 5 on the supply side is mounted is rotatably supported and provided so as to be pulled upward.

The control unit 4 also controls the ionization electrode 10,
An operation control circuit 14 that controls the dust collecting electrode 11 and the motor controller 13, a memory 15 that stores the count value of a counter (not shown) built in the motor controller 13, and a current from the power supply 16 are rectified. It has a rectifier circuit 17 and a backup battery 18 to which the current supplied from the rectifier circuit 17 is charged.

Since the winding amount per rotation changes depending on the winding diameter of the winding-side roll 7, the motor controller 13 counts the number of rotations of the geared motor 12, and the rotation of the output shaft 12a according to the count value. Change speed.

That is, after the winding-side roll 7 is replaced, the geared motor 12 is activated and makes one revolution, and 1 is counted. Every time the geared motor 12 makes one revolution, the count value is incremented by one. Then, the motor controller 13
Increases the rotation speed of the geared motor 12 when the count value is small, and decreases the rotation speed corresponding to the count value each time the count value increases.

Further, the backup battery 18 operates at the same time when the power source of the device is turned off to supply a current to the memory 15.

The memory 15 stores a count value output from a counter (not shown) built in the motor controller 13, and when the power of the apparatus is once turned off and then turned on again. , Update the stored count value.

As shown in FIG. 2, the take-up sensor 2 composed of a light emitting element 19 and a light receiving element 20 facing each other on the outer periphery of the dust collecting paper roll 5 on the supply side at a position separated from the supply reel 6.
1 is provided. Normally, in the take-up sensor 21, the light from the light emitting element 19 is blocked by the dust collecting paper roll 5 and the detection signal from the light receiving element 20 is turned off. However, as the dust collecting paper A is taken up, the diameter of the dust collecting paper roll 5 is reduced. Then, as shown in FIG. 5, the light from the light emitting element 19 is received by the light receiving element 20 immediately before the entire dust collecting paper A is wound up, and it is detected that it is time to replace the dust collecting paper roll 5.

Therefore, the take-up sensor 21 which has received the light from the light emitting element 19 causes the operation control circuit 14 to receive the light receiving element 20.
A detection signal is output from the speaker 22, and the speaker 22 informs the dust collecting paper roll 5 on the supply side that the dust collecting paper A has run out.

Further, the guide portion 9 has an isosceles triangular shape when viewed from above, and column-shaped guide pins 9a to 9c with which the dust collecting paper A slides are provided at each corner portion. Therefore, when the take-up reel 8 is rotationally driven by the geared motor 12, the dust collecting paper A pulled out from the dust collecting paper roll 5 on the supply reel 6 side is stretched between the columnar guide pins 9a to 9c, and is collected. It moves so as not to contact the dust electrode 11.

As shown in FIGS. 3 and 4, a cup-shaped cover 2 covering the periphery of the dust collecting unit 2 is provided on the upper portion of the main body 1.
3 is provided. The cover 23 is provided with a plurality of slits 23a forming an opening for sucking dust floating in the air.

On the side surface of the main body 1, a power switch 24,
A reset switch 25 and the speaker 22 are provided, and an LED (light emitting diode) 26 is provided on the side surface of the cover 23 to light up and indicate that it is in operation.

When the power switch 24 is turned on, for example, −7 kv is applied to the ionization electrode 10 and +7 kv is applied to the pair of dust collecting electrodes 11. As a result, a line of electric force is generated from the ionization electrode 10 toward the dust collecting electrode 11. When lines of electric force are generated between the ionization electrode 10 and the dust collecting electrode 11 in this manner, ion wind as indicated by an arrow in FIG. 3 is generated. Therefore, the dust floating around the cover 23 passes through the slit 23a and the cover 23
Flows into the inside of the chamber, and further the ionization electrode 10 and the dust collecting electrode 1
1. The dust collecting paper A mounted on the side surface of the guide portion 9 provided with
Reach.

That is, since the ionization electrode 10 has a plurality of linear protrusions 10a, the discharge is easily started by a high voltage, and when gas ions or electrons generated by the discharge come into contact with dust, the dust is negatively charged. The negatively charged dust (ionized dust) moves toward the dust collecting electrode 11 having a higher potential than the ionizing electrode 10. Since the dust collecting paper A is wrapped around the dust collecting electrode 11, dust in the air adheres to the dust collecting paper A.

At the same time when the power switch 24 is turned on, an alternating current from the power source 16 is supplied to the rectifier circuit 17, and the operation control circuit 14 starts to operate. And the cover 23
The LED 26 provided in the LED lights up and the ionization electrode 1
It is displayed that the air cleaning operation is performed between 0 and the dust collecting electrode 11.

The operation control circuit 14 is the ionization electrode 1 described above.
0, a constant voltage is applied to the dust collecting electrode 11, and a control signal for starting the operation is sent to the motor controller 13. As a result, the motor controller 13 causes the take-up reel 8 to collect the dust collecting paper A on the supply reel 6 side, for example, 0.014 to 0.021 mm per minute.
The geared motor 12 is driven to rotate so as to wind at a low speed.

Therefore, the output shaft 12a of the geared motor 12 rotates at a low speed, and the take-up reel 8 having the take-up roll 7 mounted thereon slowly rotates in the take-up direction to wind the dust-collecting paper roll 5 on the supply side. The unused dust collecting paper A that has been turned is gradually pulled out to the guide portion 9 side, and the used dust collecting paper A on which the dust is sufficiently attached is wound around the winding side roll 7.

As described above, the dust collecting paper A mounted along the guide portion 9 automatically moves at a constant speed from the supply side to the winding side at the time of the air cleaning operation, so that the dust collecting paper A is periodically moved. There is no need for manual maintenance, that is, manual winding work. Further, the dust collecting paper A can be used still, but the dust collecting paper A is not wasted by being wound up,
It is possible to effectively use the dust collecting paper A. The dust collecting paper roll 5 on the supply side is wound with a considerable length of the dust collecting paper A, so that the dust collecting paper A can usually be continuously used for 2 to 3 years. When the take-up sensor 21 detects that all of the dust collecting paper A of the dust collecting paper roll 5 on the supply side has been taken up by the take-up side roll 7, the cover 2 from the apparatus main body 1 is detected.
After removing 3 and removing the winding side roll 7 together with the supply reel 6 and the take-up reel 8, a new dust collecting paper roll 5 is mounted on the apparatus main body 1 together with the supply reel 6 and the take-up reel 8.

In each of the above-mentioned embodiments, it goes without saying that the memory 15 may be an EPROM (writable ROM). In that case, the backup battery 18 becomes unnecessary.

Further, in the above embodiment, when the dust collecting paper of the dust collecting paper roll 5 on the supply side runs out, the LED 22 may be blinked instead of the speaker 22.

Further, in the above embodiment, the electrostatic air purifying device has been described as an example, but not limited to this, for example, the air sucked by the air suction fan is passed through a paper filter to remove dust. Of course, it can be applied to a device having a configuration.

In the above embodiment, the supply reel 6 and the take-up reel 8 are erected in the vertical direction. However, the present invention is not limited to this. For example, the supply reel 6 and the take-up reel 8 are supported in the horizontal direction and the dust collecting paper is collected. A may be moved upward or downward and wound up.

[0037]

As described above, in the air cleaning apparatus according to the present invention, the dust collecting paper wound around the supply reel is driven by rotating the take-up reel in the winding direction at a low speed (slow speed) by the winding mechanism. It is possible to automatically wind the dust collecting paper around the take-up reel while gradually pulling out, and it is possible to automatically replace the used dust collecting paper. Therefore, the troublesome dust collecting paper replacement work by the user or maintenance personnel can be eliminated for a long period of time. Further, it has a feature that the dust collecting paper can be effectively used without winding the dust collecting paper to waste even though the dust collecting paper is still usable.

[Brief description of drawings]

FIG. 1 is a system diagram of an embodiment of an air cleaning device according to the present invention.

FIG. 2 is a plan view of the electrostatic air purifier shown in FIG. 1 with a cover removed.

FIG. 3 is a vertical sectional view showing the inside of the electrostatic air purifier.

FIG. 4 is a side view of the electrostatic air cleaning device.

FIG. 5 is a plan view for explaining the detection operation of the winding sensor when the dust collecting paper is wound.

[Explanation of symbols]

 1 Device Main Body 2 Dust Collection Unit 3 Winding Mechanism 4 Control Section 5 Dust Collection Paper Roll 6 Supply Reel 7 Winding Side Roll 8 Winding Reel 9 Guide Section 10 Ionization Electrode 11 Dust Collection Electrode 12 Geared Motor 13 Motor Controller 14 Operation Control Circuit 15 memory 21 take-up sensor 23 cover

Claims (1)

[Claims] 1. A supply reel around which dust-collecting paper to which dust floating in the air is attached, a take-up reel that winds up the dust-collecting paper drawn from the supply reel, and a winding-up direction of the take-up reel. An air purifying device including: a winding mechanism that is rotationally driven in a direction; and a control unit that drives and controls the winding mechanism such that the dust collecting paper wound around the supply reel travels toward the winding reel at a low speed. An air purifier characterized by the following.