JPH0889844A - Collector of air cleaner - Google Patents

Abstract

PURPOSE: To apply a stable voltage to the collector (dust collection part) of an air cleaner and to make the air cleaner thin. CONSTITUTION: The collector of an air cleaner consists of an ionizer and a dust collection part 5 wherein second collector plate electrodes 21 of the electrodes on the high voltage side and first collector plate electrodes 22 of the electrodes on a low voltage side are opposed to each other and each of the second collector plate electrodes 21 is constituted by attaching a conductive material to one end part thereof on the side of the ionizer 3 and directly applying a voltage thereto by the ionizer 3. Therefore, a stable voltage can be applied to the dust collection part 5 and a float electrode is not required and the air cleaner can be made thin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier collector for use in, for example, an automobile air purifier, which collects dust by charging dust.

[0002]

2. Description of the Related Art As shown in FIG. 6, a collector of a conventional air cleaner has a first collector plate electrode 55 on the low voltage side.
And the second collector plate electrode 51 on the high voltage side connected to the float electrode 53, and the dust 100 charged by the ionizer 57 is adsorbed to the first collector plate electrode 55 and collected. There is a known auto-bias type air cleaner (for example,
JP-A-3-270744).

The float electrode 53 is applied by the discharge electrode 59 of the ionizer 57 to apply a high voltage to the second collector plate electrode 51.

Further, as shown in FIG. 7, the conventional second collector plate electrode 51 has a resin-made insulating film 6 as shown in FIG.
1 is used as a base material, and one side of this insulating film is coated with a conductive material 63 having a width narrower than that of the insulating film.

[0005]

However, in this type of auto-bias type air cleaner, the float electrode 5 is used.
The first collector plate electrode 55 having a polarity opposite to that of No. 3 cannot be brought close to the float electrode. When both electrodes are brought close to each other for the purpose of downsizing the air cleaner, an arc is easily generated between them.

On the other hand, the ionizer 57, the float electrode 53, and the collector (dust collecting portion) 65 are plate-shaped separate bodies, and the ionizer 57 is assembled when these are assembled.
It is necessary to keep the distance between the float electrode 53 and the float electrode 53 constant, and the float electrode 53 is arranged so as to be sandwiched between the ionizer 57 and the collector 65. However, since the float electrode 53 is made of wire mesh, punching metal, or the like, distortion is low and the distance between the ionizer 57 and the float electrode 53 is unlikely to be constant. Therefore, there is an inconvenience that the high voltage supplied to the collector 65 is not stable.

Further, although there has been a strong demand for thinning the device, it is necessary to arrange the three parts of the ionizer 57, the float electrode 53 and the collector 65 at a predetermined interval, so that there is a limit to thinning. there were.

[0008] Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, to supply a stable voltage to the dust collecting portion, and to make the device thinner in collector. To provide.

[0009]

In order to achieve the above object, the first invention is an ionizer comprising a discharge electrode and a counter electrode facing each other in an air passage, and an electrode on the high voltage side. A second collector plate electrode and a first collector plate electrode, which is a low-voltage side electrode, facing each other, and the second collector plate electrode has a conductive material at one end on the ionizer side, and One end is arranged in the vicinity of the ionizer.

In the present invention, the one end where the conductive material is arranged on the second collector plate electrode is adjacent to the end surface of the second collector plate electrode on the ionizer side and the end surface of the plate surface of the second collector plate electrode. Of the surface (upper surface and / or lower surface), or both of the end face and the part of the surface adjacent to the end face.

In a second aspect of the invention, a large number of the second collector plate electrodes and the first collector plate electrodes are alternately stacked.

In a third aspect of the invention, a Zener diode is connected between the second collector plate electrode and the first collector plate electrode.

According to a fourth aspect of the present invention, in the air passage, an ionizer having a counter electrode facing the discharge electrode, a float electrode, a second collector plate electrode which is a high voltage side electrode connected to the float electrode, and A first collector plate electrode, which is a low-electricity-side electrode, and a dust collecting portion that faces the first collector plate electrode.
A Zener diode is connected between the collector plate electrode and the collector plate electrode.

[0014]

According to the first invention, the collector is arranged directly next to the ionizer without providing the float electrode,
The second electrode, which is the electrode on the high voltage side due to the discharge of the ionizer
Supply high voltage to the collector plate. In this case, the second
Since a conductive material is provided at one end of the collector plate electrode on the ionizer side, the second contact plate electrode can directly receive electric charges by the discharge of the ionizer. Therefore, a stable voltage can be supplied to the dust collecting portion, and the device can be made thin.

According to the second invention, in the first invention, a large number of second collector plate electrodes and first collector plate electrodes are alternately stacked to form a dust collecting portion, so that the dust collecting effect is enhanced. be able to.

According to the third invention, in the first invention, since the maximum voltage is defined by the Zener diode, the voltage is maintained constant even if dust is accumulated and the voltage is easily changed, and the arc is maintained. Can be reliably prevented.

According to the fourth aspect of the invention, since the maximum voltage is regulated by the Zener diode, the voltage is maintained constant even if dust accumulates and the voltage easily changes, so that arcing is surely prevented. You can do it. Therefore, a stable voltage can be supplied to the dust collecting portion, and the device can be made thin.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes an electric dust collector type air purifier. The air purifier 1 supplements the ionizer 3 for charging the dust 100 to, for example, a positive pole, and the charged dust 100. Collector 5 for collecting (dust collecting part)
It consists of and.

The ionizer 3 is composed of, for example, a linear discharge electrode 13 connected to a high voltage power source 11 of 6 KV and a plate-shaped counter electrode 15 grounded to ground, and dust 100 is added by corona discharge between both electrodes. Charge to the pole.

The collector 5 is directly arranged beside the ionizer 3, and a float electrode is not provided between the ionizer 3 and the collector 5 as in the conventional case. By thus omitting the float electrode, the device can be made thinner. That is, the second electrode, which is the electrode on the high voltage side of the collector 5 due to the discharge of the ionizer 3,
It is configured to supply a high voltage to the collector plate electrode 21.

The collector 5 is a second collector plate electrode 21 which receives electric charges directly by the discharge of the ionizer 3.
And the grounded first collector plate electrode 22 are alternately laminated at a predetermined interval, and the dust 100 charged to the positive pole is attracted to the grounded first collector plate electrode 22 by Coulomb attraction. , Has been configured to be collected.

As shown in FIG. 2, the second collector plate electrode 21 has an insulating film 23 made of polypropylene or the like as a base material, and a portion 25C narrower than the insulating film 23 and an insulating film 23 are formed on the upper surface or the lower surface of the insulating film 23. A conductive material 25 is applied to one end of the film 23.

That is, as shown in FIGS. 2A and 2B, the conductive material 25 is applied so that only the end surface 25a of the second collector plate electrode 21 on the ionizer side is adjacent to the end surface of this plate surface. Surface (upper surface and / or lower surface)
Only the portion 25b is formed in any region of both the end surface 25a and the surface portion 25b.

The one end portion coated with the conductive material is the conductive portion 2
End face 2 which is energized to the narrow portion 25C via 5d
5b is applied to the end surface 25a as shown in FIG.
Although it is applied with a predetermined width along the line, it may be a part that covers the entire portion of the insulating film 23 on the side of the ionizer 3 as shown in FIG. 3B.

In this way, the second collector plate electrode 2
By applying the conductive material to the end portion of 1, the second collector plate electrode 21 can directly receive the electric charge by the discharge of the ionizer 3.

On the other hand, the grounded first collector plate electrode 22 is formed by applying an electrically conductive material 25 to the insulating film 23 made of polypropylene or the like as a base material. A conductive material is not applied to the end portion of the first collector plate electrode 22 so that abnormal discharge does not occur even if it approaches the ionizer 3.

Next, the operation of this embodiment will be described.

The air A containing the dust 100 sent to the air purifier 1 is discharged from the air purifier 1 as purified air B in a state where only the dust 100 is removed.

In the ionizer 3, the discharge electrode 13
The dust 100 is charged to the positive pole by the discharge of.

At the same time, since the conductive material 25 is applied to the end portion of the second collector plate electrode 21 located close to the discharge electrode 13 of the ionizer 3, the second collector plate electrode 21 of the collector 5 is also discharged. It is charged by the discharge of 13. As a result, the conductive material 25 on the surface is charged via the end portion.

Therefore, in the collector 5, dust 100
Is the first collector plate electrode 22 due to the Coulomb attractive force.
Is adsorbed on.

Since the second collector plate electrode 21 has the same polarity as the discharge electrode 13 (both are positive electrodes), no arc is generated even if both electrodes are brought close to each other, and the collector 5 having high safety is provided.
become. Furthermore, since both electrodes can be brought closer to each other by excluding the float electrode (the distance L in FIG. 1 can be reduced), the air cleaner 1 can be made compact.

Therefore, various effects such as the safety of the air cleaner and the miniaturization thereof can be achieved.

Next, the second and third embodiments of the present invention will be described. The same parts as those of the first embodiment described above are designated by the same reference numerals, and a detailed description of those parts will be given. Is omitted.

The second embodiment of the present invention is different from the above-described first embodiment in that a Zener diode 31 is arranged on the second collector plate electrode 21. By thus providing the Zener diode 31, the voltage applied to the collector 5 can be made constant. By keeping the voltage applied to the collector 5 constant, when dust 100 adheres to the vibration or the ionizer 3 or the collector 5 and is stacked, the first collector plate electrode 22 and the second collector plate electrode 21 are separated from each other. Although an arc is likely to occur, it is possible to prevent the arc from occurring by making the voltage applied to the collector 5 constant. By preventing the generation of such an arc, it is possible to prevent the deterioration of the air cleaning function and the generation of voltage radiation noise.

The third embodiment of the present invention is different from the first embodiment in that a float electrode 17 is provided between the ionizer 3 and the collector 5, and a zener is provided between the float electrode 17 and the second collector plate electrode 21. The diode 31 is arranged.

In the third embodiment, since the maximum voltage is regulated by the Zener diode 31, the voltage is maintained constant even if dust is accumulated and the voltage is likely to change, so that the arc is surely prevented. You can do it. Therefore, a stable voltage can be supplied to the collector, and the float electrode 17 can be disposed between the ionizer 3 and the collector 5 in close proximity, so that the device can be thinned.

[0039]

According to the first aspect of the invention, the collector is directly arranged next to the ionizer without providing the float electrode, and the second collector plate, which is the electrode on the high voltage side, has a high voltage due to the discharge of the ionizer. Supply voltage. in this case,
Since a conductive material is provided at one end of the second collector plate electrode on the ionizer side, electric charges can be directly received by the discharge of the ionizer. Therefore, a stable voltage can be supplied to the collector and the device can be made thin.

Further, since the float electrode is not required, it is possible to reduce the parts inspection.

According to the second invention, in the first invention, a large number of second collector plate electrodes and first collector plate electrodes are alternately stacked to form a collector, so that the dust collecting effect can be enhanced. it can.

According to the third invention, in the first invention, since the maximum voltage is defined by the Zener diode, the voltage is maintained constant even if dust is accumulated and the voltage easily changes, and the arc is maintained. Can be reliably prevented.

According to the fourth aspect of the invention, since the maximum voltage is regulated by the Zener diode in the device having the float electrode, the voltage is maintained constant even if dust accumulates and the voltage easily changes, and the arc is maintained. Can be reliably prevented. Therefore, a stable voltage can be supplied to the collector.
Further, it is possible to reduce the thickness of the device in which the float electrode can be disposed in the vicinity of the ionizer and the collector.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a collector of an air cleaner according to an embodiment of the present invention.

FIG. 2 is a diagram showing a second collector plate electrode,
(A) is a front view and (b) is a plan view.

3A and 3B are diagrams showing a second collector plate electrode according to another embodiment, FIG. 3A being a front view and FIG. 3B being a plan view.

FIG. 4 is a configuration diagram of a collector of an air purifier according to a second embodiment of the present invention.

FIG. 5 is a configuration diagram of a collector of an air purifier according to a third embodiment of the present invention.

FIG. 6 is a configuration diagram of a collector of a conventional air cleaner.

FIG. 7 is a plan view of a conventional second collector plate electrode.

[Explanation of symbols]

 1 Air Purifier 3 Ionizer 5 Collector (Dust Collection Part) 13 Discharge Electrode 21 Second Collector Plate Electrode 22 First Collector Plate Electrode 25 Conductive Material 25a, 25b End 31 Zener Diode 100 Dust

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinji Okuhara 39 East Tobara, Chiyo-ji, Konan-cho, Oza-gun, Saitama Prefecture XXcel Co., Ltd. Konan factory (72) Inventor Senichi Masuda 1-30-1 Nishigahara, Kita-ku, Tokyo -1202

Claims (4)

[Claims] 1. An ionizer in which a counter electrode is opposed to a discharge electrode, a second collector plate electrode that is a high-voltage side electrode, and a first collector plate electrode that is a low-voltage side electrode in an air passage. And a dust collecting portion facing each other, the second collector plate electrode has a conductive material at one end portion on the ionizer side, and the one end portion is arranged in proximity to the ionizer. Purifier collector. 2. The collector of an air cleaner according to claim 1, wherein a plurality of the second collector plate electrodes and the first collector plate electrodes are alternately stacked. 3. The collector of the air purifier according to claim 1, further comprising a Zener diode connected between the second collector plate electrode and the first collector plate electrode. 4. An ionizer having a discharge electrode and a counter electrode facing each other in the air passage, and a float electrode.
The second electrode, which is the high voltage side electrode connected to this float electrode
In a collector of an air cleaner, comprising: a collector plate electrode and a dust collector that faces a first collector plate electrode, which is a low-voltage side electrode, between the first collector plate electrode and the second collector plate electrode. A collector of an air purifier characterized by connecting a Zener diode to the.