JPH0788399A - Electric precipitator - Google Patents

Abstract

PURPOSE:To provide an electric precipitator in which only parts required for replacement are replaced to lower running cost and whose replacement parts are easily treated and which are manufactured at a low cost. CONSTITUTION:In an electric precipitator in which fine particles in passing air are charged in an ionization part 30 and the charged fine particles are stuck to plural dust collecting electrodes 36 of a dust collecting part 31 and air is purified and discharged, an electrode made of paper in which aluminum foil. carbon, etc., are stuck to a long, narrow piece of belt-like paper and the piece is subjected to conducting surface treatment is folded at prescribed intervals and the folded parts are laid over the other and long and short laminated parts 37a and 37b are alternately formed to constitute a replacement part 37, and also the replacement part 37 is exchangeably fitted to a casing 26. An opposite electrode 33 of the ionization part 30 is formed of the end of the long laminated part 37a, and the dust collecting electrode 36 of the duct collecting part 31 is formed of the base end of the long laminated part 37a and the short laminated part 37b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrostatic precipitator applicable to, for example, an air cleaner. More specifically, the present invention relates to an electrostatic precipitator that charges fine particles in passing air in an ionization unit, attaches the charged fine particles to a plurality of dust collecting electrodes in a dust collecting unit, and cleans and discharges air.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, an electrostatic precipitator provided in an air cleaner or the like has an ionization section 3 including an ionization line 1 and a counter electrode 2, a charge electrode 4 and a dust collection electrode 5. And a dust collecting part 6 including.

When the air purifier is used, fine particles floating in the air passing in the direction of the arrow in the figure are charged by the ionization section 3, and the charged fine particles are collected by a plurality of dust collecting electrodes of the dust collecting section 6. It adhered to No. 5, and the air was cleaned and discharged.

On the other hand, when the dust collecting electrode 5 becomes dirty due to the adhesion of fine particles, the dust collecting portion 6 is removed, soaked in a cleaning liquid, and the dirt is floated and rubbed off with a brush or the like to prevent the dust collecting efficiency from decreasing. .

However, the conventional electrostatic precipitator has the following problems. Cleaning work is a heavy burden on the user. After washing, it takes about a day before it can be dried and reused.
It's inconvenient. If you ask a cleaning company, the cost will be high.

[0006] Therefore, there is a conventional electrostatic precipitator in which the dust collecting portion 6 is disposed of without being cleaned when the dust collecting electrode 5 becomes dirty.

As shown in FIG. 7, the disposable type dust collecting portion 6 includes a paper dust collecting electrode 7 made of paper which has been subjected to a conductive surface treatment.
An electrode group 10 in which the charging electrodes 8 are arranged at predetermined intervals via a separator 9, a soft conductive urethane foam 11 provided with a notch for sandwiching the dust collecting electrode 7 and the charging electrode 8, and its soft conductivity. A frame member 12 for accommodating the urethane foam 11 and a power supply conductor plate 13 adhered to the back surface of the soft conductive urethane foam 11 are integrally assembled to form a unit configuration.

When the dust collecting electrode 7 is contaminated with fine particles, the dust collecting portion 6 is replaced with the unit to prevent the dust collecting efficiency from decreasing.

[0009]

However, in such a conventional electrostatic precipitator, when the dust-collecting electrode 7 is contaminated with fine particles, the dust-collecting section 6 is replaced with the unit, and therefore the following problems occur. It was Parts other than those that need to be replaced must be replaced, which increases running costs. You will throw away the ones that burn and those that do not. It takes time and effort to assemble the unit, which increases the cost.

Therefore, an object of the present invention is to provide an electrostatic precipitator in which only the parts that need to be replaced can be replaced to reduce the running cost, the replacement parts can be easily processed, and the cost can be reduced. Especially.

[0011]

Therefore, the present invention provides
For example, as shown in the following illustrated embodiment, fine particles in passing air are charged in the ionization section 30, and the charged fine particles are attached to a plurality of dust collecting electrodes 36 of the dust collecting section 31 to clean the air. In the electrostatic precipitator 25, which discharges as a result, the plurality of dust collecting electrodes 36 ... Are integrally connected to form a replacement part 37. It is characterized in that it is attached to a housing 26 having ...

According to a second aspect of the present invention, for example, as shown in the following illustrated embodiment, in the electrostatic precipitator 25 of the first aspect, the counter electrodes 33 of the ionization section 30 ...
Is formed continuously with the dust collecting electrode 36.

[0013]

In the present invention, when the dust collecting electrodes 36 ... Are soiled due to the adhesion of fine particles, they are removed from the housing 26 and only the replacement parts 37 are replaced.

According to the second aspect, the dust collecting electrode 36
When replacing the ..., the counter electrode 33 of the ionization unit 30
……… Also exchange.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described in detail with reference to the drawings. FIG. 5 is an external perspective view of an air cleaner provided with the electric dust collector of the present invention. FIG. 4 is an external perspective view of the front panel with the front panel opened.

Reference numeral 20 in the drawing denotes an outer case. The outer case 20 is formed in a slightly flat box shape, and an intake port 21 is opened in the lower lower surface and an exhaust port 22 is opened in the upper front surface, and an air flow path (not shown) from the intake port 21 to the exhaust port 22 is formed. Is provided inside. The outer case 20
And a mounting port 23 for an electrostatic precipitator 25, which will be described later, is provided side by side on the front side of the air intake port 21 side.
A front panel 24 is provided between the intake port 21 and the exhaust port 22. The front panel 24 is provided so as to be openable and closable from the state of FIG. 5 to the state of FIG. 4 with an upper edge near the exhaust port 22 side as a fulcrum. Then, the electrostatic precipitator 25 of the present invention is inserted into the outer case 20 by being inserted from the mounting port 23.
Is detachably installed.

The electrostatic precipitator 25 is shown in FIGS.
As shown in FIG. The housing 26 is formed of a synthetic resin material in a rectangular shape having an opening at the top and bottom, a handle 27 is provided on the front portion 26a, and long grooves 26c and short grooves 26d are provided on the left and right side plate portions 26b. The long groove 26c and the short groove 26d extend from the top side toward the bottom side, are formed alternately and in parallel at predetermined intervals, and the lower end of the long groove 26c extends longer than the lower end of the short groove 26d toward the bottom side. .

As shown in FIG. 1, inside the housing 26, ionization lines 32 ... Are provided on the bottom side and charging electrodes 35 ... are provided on the top side. Each of the ionization lines 32 ...
Is made of tungsten, both ends thereof are supported by the side plate portions 26b, and they are laid in parallel on the extension lines of the short grooves 26d.

Each of the charging electrodes 35 ... Is formed by laminating an insulating film 35b around an aluminum plate 35a, and both ends are supported by the side plate portions 26b.
The long groove 26c and the short groove 26d are bridged in parallel.

On the other hand, the replacement part 37 is a paper-made electrode in which aluminum foil, carbon, or the like is attached to an elongated strip-shaped paper and subjected to a conductive surface treatment. Then, as shown in FIG. 2, the sheets are bent at predetermined intervals and overlapped with each other, and the overlapped portion 3 extending downward from the planar connecting portion 37c.
7a and short overlapping portions 37b are alternately formed, and a long and narrow ventilation window 37d is formed in each connecting portion 37c between the long and short overlapping portions 37a and 37b. And the replacement part 37 so formed
Insert a long overlapping portion 37a into the long groove 26c and a short overlapping portion 37b into the short groove 26d,
The replacement part 37 is replaceably attached to the housing 26.

Then, as shown in FIG. 1, the ionization line 32 is provided between the tips of the long overlapping portions 37a.
Is located and forms the ionization part 30 there,
The charging electrodes 35 are respectively located between the base end of the long overlapping portion 37a and the short overlapping portion 37b.
The dust collecting part 31 is formed there. That is, the tip of the long overlapping portion 37 a functions as the counter electrode 33 of the ionization section 30, and the base end thereof functions as the dust collecting electrode 36 of the dust collecting section 31.

Therefore, when the air cleaner is used, an intake fan (not shown) is driven to suck air from the intake port 21, and the ionization line 32 of the electrostatic precipitator 25 is used.
A high voltage is applied between the counter electrode plate 33 and the counter electrode plate 33 to cause corona discharge, and positive ions are charged to fine particles such as dust and smoke in the air passing in the direction of the arrow in FIG.
At the same time, the charging electrodes 35 ... And the dust collecting electrodes 36 ...
, And a high voltage is applied between them and the fine particles such as dust and smoke charged with positive ions are attracted to and adsorbed on the dust collecting electrode 36. Then, the air is cleaned to the exhaust port 22.
Discharge from.

When the dust collecting electrode 36 becomes dirty due to the adhering of particles over time, the plate panel 24 is opened as shown in FIG. 4, and the grip 27 is used to remove the electrostatic precipitator 25. Then, the replacement part 37 is removed from the housing 26 of the electrostatic precipitator 25 in the direction of the arrow in FIG. 3 and replaced with a new replacement part. Then, the dust collecting electrode 36 of the dust collecting portion 31 ...
, And the counter electrode 33 of the ionization section 30 are simultaneously replaced, and then the electrostatic precipitator 25 is attached again, and the front panel 24 opened in FIG. 4 is closed to obtain the state shown in FIG.

[0024]

As described above, according to the present invention, a plurality of dust collecting electrodes are integrally connected to form a replacement part, and the replacement part is attached to the housing in a replaceable manner.
Running costs can be reduced. Further, since the replacement parts are not unitary as in the conventional case, the labor for assembling can be saved and the cost can be reduced. Further, since the replacement parts are made of the same material, it is possible to easily dispose of dust.

According to the second aspect of the present invention, since the counter electrode of the ionization section is also replaced at the same time when the dust collecting electrode is replaced, it is possible to save the trouble of separately replacing the contaminated counter electrode.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an electrostatic precipitator according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view thereof.

FIG. 3 is a partial cross-sectional view showing a state in which a replacement part is removed from the casing of the electrostatic precipitator.

FIG. 4 is a perspective view of an air purifier including the electric dust collector, with its front panel opened.

FIG. 5 is a perspective view with its front panel closed.

FIG. 6 is a schematic configuration diagram of a conventional electrostatic precipitator.

FIG. 7 is a schematic configuration diagram of a dust collecting portion in another example of the conventional electric dust collector.

[Explanation of symbols]

 25 Electrostatic Precipitator 26 Housing 30 Ionization Section 31 Dust Collection Section 33 Counter Electrode 36 Dust Collection Electrode 37 Replacement Parts

Claims (2)

[Claims] 1. An electrostatic precipitator in which fine particles in passing air are charged in an ionization section and the charged fine particles are attached to a plurality of dust collecting electrodes in a dust collecting section to clean and discharge air.
An electrostatic precipitator in which the plurality of dust collecting electrodes are integrally connected to form a replacement part, and the replacement part is replaceably attached to a case having a charging electrode of the dust collecting part. 2. The electrostatic precipitator according to claim 1, wherein the counter electrode of the ionization section is formed continuously with the dust collecting electrode.