JPH0751594A - Dust collector in air cleaner - Google Patents

Abstract

PURPOSE:To improve dust collecting efficiency by keeping uniformly the distance between electrodes and making air resistance as small as possible. CONSTITUTION:Both a dust collecting electrode 20 with projections 20a and an anode plate 19 are made into belt-like shape and they are arranged in the orthogonal direction to each other and they are bent at every distance with a dimension of the other one's width to form a folding part 25 wherein a definite distance is kept from each other by means of the projections 20a and they are folded one on another and a vent 20c for passing air through to a folding part 25 is provided in a bent part 20b of the dust collecting electrode 20. A square dust collecting part 21 is prepd. by piling the folding parts 25 and the dust collecting part 21 is assembled in a frame 16 so that the vent 20c faces a vent port of the frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention charges, for example, particles of smoke, dust, dust, etc. in the air taken in by an ionizer and collects the charged particles by a dust collector to obtain clean air from an outlet. It can be applied to the air purifier sent out. Specifically, in such an air purifier, an anode plate and a dust collecting electrode plate are provided at a fixed distance from each other, and a dust collecting electrode plate adsorbs particles such as smoke, dust, and dust charged by the ionization device. Regarding dust equipment.

[0002]

2. Description of the Related Art Conventionally, as an air purifier, for example, FIG.
As shown in FIG. 5, in the main body case 2 having the air flow passage 1 inside, the air inlet 1 a of the air flow passage 1 to the outlet 1 thereof.
Towards b, an ionizer 3, a dust collector 4, and a fan 5 are sequentially installed.
There are some with. Further, the ionization device 3 is provided with the ionization wire 3a and the ground electrode plate 3b, and the dust collector 4 is provided with the anode plate 4a and the dust collection electrode plate 4b, which are spaced from each other at constant intervals.

In this air purifier, however, a high voltage is applied between the ionizing wire 3a and the ground electrode plate 3b and between the anode plate 4a and the dust collecting electrode plate 4b by a high pressure generator (not shown), and a fan is used. 5 is driven to take in air from the air inlet 1a. Then, the particles of smoke, dust, dust, etc. in the air taken in are charged by the ionization device 3, and the charged particles are adsorbed by the dust collecting electrode plate 4b to discharge clean air from the air outlet 1b. It was

By the way, in such an air purifier, conventionally, the dust collecting device 4 has been constructed, for example, as shown in FIG. That is, the dust collecting device 4 has a box-shaped frame 6 in which a band-shaped anode plate 4a and a dust-collecting electrode plate 4b are overlapped with each other at a constant interval.
The core 6a was wound in a spiral shape. Then, the ventilation passage 7 between the anode plate 4a and the dust collection electrode plate 4b is arranged along the air flow passage 1 and attached inside the main body case 2.

[0005]

However, in such a conventional dust collecting apparatus 4, the anode plate 4a and the dust collecting electrode plate 4b are provided.
Since it is configured to be wound in a spiral shape, a core portion 6a at the beginning of winding is required for the frame body 6, and the corner portions 6 are provided at the four corners.
b occurs, and the core portion 6a and the corner portion 6b greatly hinder the air flow. Further, since the electrodes 4a and 4b are wound while being pulled from the terminal end side, the distance between the electrodes 4a and 4b is narrowed at the curved portions, and the electrode plate spacing is likely to be uneven. After all, in the past, the dust collection efficiency was considerably reduced due to the nonuniformity of the electrode plate spacing and the air resistance of the core portion 6a and the like.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to improve the dust collection efficiency by keeping the electrode plate spacing uniform and reducing the air resistance as much as possible in the dust collector of the air purifier.

[0007]

Therefore, in the dust collector 15 of the air purifier according to the present invention, both the anode plate 19 and the dust collecting electrode plate 20 are formed in a strip shape as shown in the following illustrated embodiment, At least one of the anode plate 19 and the dust collecting electrode plate 20 is formed by arranging them in a direction orthogonal to each other, bending each of them at a predetermined interval, and maintaining a certain interval between them to alternately fold them. For example, the bent portion 20b of the dust collecting electrode plate 20 is provided with a ventilation hole 20c for allowing air to pass through the folded portion 25.

[0008]

In the dust collector 15 according to the present invention, the strip-shaped anode plates 19 and the dust-collecting electrode plates 20 are arranged in directions orthogonal to each other, and are bent at predetermined intervals to maintain a constant interval therebetween. The folded portion 25 is formed by alternately folding.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 8 is an external perspective view of an air purifier provided with a dust collector according to an embodiment of the present invention.

Reference numeral 10 in the figure denotes a main body case of the air purifier. The main body case 10 has a box shape, an air inlet 10a is provided on the bottom surface, and an air outlet 10b is provided on the front upper side. Further, a display unit 11 is provided on the lower side of the front surface to display the dust collecting state and the on / off state of the switch. And the main case
The operation switch 1 is attached to the outside of the switch 10 via the pull-out cord 12.
3 is provided. On the other hand, an air inlet 1 is provided in the main case 10.
Although not shown, an ionizer, a dust collector of the present invention, and a fan are sequentially provided from 0a toward the air outlet 10b.

By operating the operation switch 13 to drive the fan, air is taken in from the air inlet 10a in the direction of arrow A in the figure, and the particles of smoke, dust, dust, etc. in the taken air are directed upward. The particles are charged by the ionizer through the air flow path, and the charged particles are adsorbed and collected by the dust collector, and clean air is discharged from the air outlet 10b in the arrow B direction.

By the way, as shown in FIG. 1, the dust collector 15 provided in the main body case 10 is provided with a horizontally long box-shaped frame body 16, and the air circulation of the frame body 16 shown by an arrow C. Rectangular ventilation openings 15a on the lower and upper surfaces in the direction
And grips 15c are provided on both ends of one side surface 15b in the front of the drawing. Then, the contact plates 17 are attached to both end surfaces 15d. Then, in the frame 16,
A dust collecting portion 21 formed by the anode plate 19 and the dust collecting electrode plate 20 is provided.

As shown in FIG. 2, the anode plate 19 has a strip shape, and as shown in FIG. 3, both surfaces of an aluminum plate 22 are covered with insulating resin sheets 23, 23 made of polypropylene or the like. Further, as shown in FIG. 4, the dust collecting electrode plate 20 has a relatively wide band shape, and as shown in FIG. 5, is bent in a substantially N-shaped cross section to provide convex portions 20a on the front and back sides, and the convex portions 20a are formed in the width direction. At regular intervals. Further, as shown in FIG. 4, the dust collecting electrode plate 20 is provided with ventilation holes 20c at equal intervals in the length direction thereof in accordance with the width of the anode plate 19. Each ventilation hole 20c
Is formed by a laterally long slot.

In this dust collecting device 15, the dust collecting portion 21
When making, as shown in FIG. 6, for example, the anode plate 19 and the dust collecting electrode plate 20 are arranged in directions orthogonal to each other. Then, as shown in FIG. 7, the anode plate 19 and the dust collecting electrode plate 20.
Each of them is alternately bent at the respective bent portions 19a and 20b at intervals of the width dimension of the other party. Thus, the folds 25 are formed by the ridges 20a, which are alternately folded at a certain distance from each other. Then, the folding portions 25 are stacked to form the square dust collecting portion 21. Then, as shown in FIG.
It is assembled in the frame body 16 with c facing the ventilation port 15a.

When the illustrated dust collector 15 is attached to the above-mentioned air purifier, the ventilation ports 15a are arranged so as to face the air circulation direction inside the main body case 10 with the grip portion 15c. Then, the contact plates 17 at both ends are connected to the anode plate 1
9 and the dust collecting electrode plate 20 are electrically connected to a high voltage generator (not shown) for applying a high voltage.

In the dust collector 15 shown, however, a high voltage is applied between the anode plate 19 and the dust collector electrode plate 20 by the high-voltage generating portion during air cleaning. And the air inlet 10a
The air taken in from is introduced into the folding portion 25 from the ventilation hole 20c on one side, and is discharged from the ventilation hole 20c on the other side through the folding portion 25. At that time, particles such as smoke, dust, and dust in the charged air are adsorbed by the dust collecting electrode plate 20 and collected.

By the way, in the illustrated embodiment described above, the ventilation hole 20c is provided in the bent portion 20b of the dust collecting electrode plate 20, but, for example, as shown in FIG. 9, the same ventilation hole is provided in the bent portion 19a of the anode plate 19. 19b may be provided.

In this other example, contrary to the above embodiment, the anode plate 19 is formed in a relatively wide band shape, while the dust collecting electrode plate 20 is formed in a relatively elongated band shape. Then, the anode plate 19 and the dust collecting electrode plate 20 are arranged in directions orthogonal to each other, and as shown in FIG. 10, they are bent at intervals of the width dimension of each other and are protruded from each other by the convex portions 20a as described above. Folding portions 25 are formed by alternately folding at a constant interval to form a square dust collecting portion 21. And
The dust collecting portion 21 is assembled in the frame body 16 with the ventilation hole 19b facing the ventilation hole 15a.

Further, in the illustrated embodiment described above, a part of the dust collecting electrode plate 20 is bent into a substantially N-shaped cross section to provide convex portions 20a on the front and back sides, and the convex portion 20a allows the anode plate 19 and the dust collecting electrode plate 20 to be formed. The interval between was kept constant. However, in the present invention, as shown in FIGS. 11 and 12, for example, a large number of small hemispherical projections 20a are provided on the front and back of the dust collecting electrode plate 20, and the intervals between the hemispherical projections 20a are constant. It may be configured to hold. Alternatively, as shown in FIGS. 13 and 14, for example, the anode plate 19 may be provided with projections 19c to maintain the intervals. In the illustrated embodiment,
The resin sheet 23, which covers the aluminum plate 22, is provided with arcuate convex portions 19c at the edges thereof. After all, the shape of the concave portion that holds the space does not matter, and it may be provided in any shape.

[0020]

According to the present invention, therefore, in the dust collector of the air purifier, the strip-shaped anode plates and the dust-collecting electrode plates are not spirally wound but are arranged in directions orthogonal to each other. Because it is a structure that is folded alternately,
Unlike the conventional case, the core part at the beginning of winding is unnecessary, and there is no need to create air resistance parts at the four corners such as the conventional corner parts. This reduces the air resistance as much as possible and the dust collection efficiency. Can be improved. Further, it is not necessary to wind the anode plate and the dust collecting electrode plate while pulling them as in the conventional case, and thereby the interval between the electrodes can be more surely kept uniform and the dust collecting efficiency can be further improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a dust collector that is an embodiment of the present invention.

FIG. 2 is a partial plan view of an anode plate of the dust collector.

FIG. 3 is a vertical sectional view of the anode plate.

FIG. 4 is a partial plan view of a dust collecting electrode plate of the dust collecting apparatus.

FIG. 5 is a partial vertical sectional view of the dust collecting electrode plate.

FIG. 6 is a partial plan view showing an arrangement configuration at the beginning of making a dust collecting portion with the dust collecting electrode plate and the anode plate.

FIG. 7 is a perspective view showing a state in which the dust collecting electrode plate and the anode plate are folded in several stages.

FIG. 8 is a perspective view of an air cleaner provided with this dust collector.

FIG. 9 is a partial plan view showing an arrangement configuration at the beginning of production of another example in which a dust collecting portion is made up of a dust collecting electrode plate and an anode plate.

FIG. 10 is a perspective view showing a state in which the dust collecting electrode plate and the anode plate are folded in several stages.

FIG. 11 is a partial plan view of a dust collecting electrode plate according to still another example.

12 is a sectional view taken along line XX in FIG.

FIG. 13 is a partial plan view of an anode plate of a dust collector according to another embodiment of the present invention.

FIG. 14 is an arrow view of the anode plate in FIG. 13 viewed from the arrow Y direction.

FIG. 15 is a schematic configuration diagram showing an example of an air purifier including a conventional dust collector.

FIG. 16 is a perspective view of the dust collector.

[Explanation of symbols]

 15 Dust collector 19 Anode plate 20 Dust collector plate 20b Bent section 20c Ventilation hole 25 Folded section

Claims (1)

[Claims] 1. A folding part in which both an anode plate and a dust collecting electrode plate are formed in a strip shape, and they are arranged in directions orthogonal to each other, and they are bent at predetermined intervals and alternately folded at a predetermined interval. And a ventilation hole for allowing air to pass through the folded portion at least at the bent portion of at least one of the anode plate and the dust collecting electrode plate.