JPH0214762A - Air cleaner - Google Patents

Abstract

PURPOSE:To eliminate the need of the honeycomb structure applied with the catalyst promoting deodorizing effect and to make an air cleaner in a small- sized and light-weighted structure of low cost by applying the catalyst promoting deodorizing effect to a dust collecting electrode of electrostatic precipitating part. CONSTITUTION:An electrostatic precipitating part A, a deodorizing part B applied with the catalyst promoting deodorizing effect, a sterilizing part C, and a blower part D constitute an air cleaner. And, the catalyst 7 promoting deodorizing effect is applied to the dust collecting electrode 2 of the electrostatic precipitating part A. Namely, the dust in the air is accumulated in front of the dust collecting electrode near an ionizing electrode, and is difficult to be accumulated in the rear half of the dust collecting electrode near the blower part, so that the catalyst promoting deodorizing effect applied to the dust collecting electrode is not covered by the dust with the result the deodorizing effect is not deteriorated. Moreover, as the honeycomb applied with the catalyst promoting deodorizing effect is not in need of installation, the air cleaner is made in a small-size and light-weight unit with low cost.

Description

[Detailed Description of the Invention] [Summary] Regarding an air purifier that can remove dust or odor from the air and also has a sterilizing effect, the present invention aims to reduce costs, reduce size and weight, and has an electrostatic precipitator part and deodorizing effect. An air purifier comprising a deodorizing section, a sterilizing section, and a blowing section coated with a catalyst that promotes the deodorizing effect, wherein the dust collecting electrode of the electric precipitator section is coated with a catalyst that promotes the deodorizing effect. do.

[Industrial application field]

The present invention relates to an air cleaner that can remove dust and odors from the air and also has a sterilizing effect.

In recent years, air purifiers other than electrostatic precipitators that have deodorizing or sterilizing effects have been considered.

[Prior art]

FIG. 3 is a schematic diagram of an air cleaner illustrating a conventional example.

In Figure 3, 1 is a high-voltage DC power supply, 2 is a dust collection electrode, and 3
It's electric! electrode, 4 is an ultraviolet lamp, 5 is a socket,
6 indicates a fan, 8 indicates dust, 10 indicates earth, and 11 indicates honeycomb.

In addition, A is an electric precipitator section, B is a deodorizing section, C is a sterilization section, and D
indicates the ventilation section.

As shown in Figure 3, the electrostatic precipitator section A includes a high voltage DC power supply 1
, a dust collection electrode 2, an ionization electrode 3, and a control device (not shown).

Further, the dust collection electrodes 2 are arranged to sandwich the ionization type 1F5i3, and are connected to the ground 10. The ionization electrode 3 is supported by an insulating support (not shown), and
It is connected to the high voltage side of the high voltage DC power supply 1.

The high-voltage DC power supply 1 performs DC/AC conversion using DC voltage from a DC power supply (or one rectified from a commercial power supply), obtains a high-frequency high voltage, and then rectifies it. The mechanical configuration of the entire DC power supply 1 can be made small.

A control device (not shown) controls the voltage to maintain an appropriately high DC voltage that does not cause arc discharge.

The deodorizing section B has a honeycomb structure coated with a catalyst that promotes the deodorizing effect, such as titanium oxide, and is provided at two locations sandwiching the sterilizing section C as shown in Figure 3, but only one location is provided. But it's okay.

The sterilizing section C, for example, as shown in FIG. 3, is composed of an ultraviolet lamp 4 attached to a socket 5, and the ultraviolet lamp 4 activates a catalyst that promotes the deodorizing effect in addition to the sterilizing effect.

The blowing section has a fan 6 and is for sucking air from which dust has been removed and discharging clean air. In an air purifier having such a configuration, when gas or air containing dust 8 passes between the dust collection electrodes 2 from left to right as shown by the arrow in FIG. 8
Some of the suspended particles are removed by a pre-filter (not shown). The remaining suspended particles are charged by corona discharge caused by the DC electric field between the ionization electrode 3 and the dust collection electrode 2, and then the suspended particles are attracted to the dust collection electrode 2 at ground potential, and the dust collection electrode Dust 8 is gradually deposited on 2.

As a result, the air is purified and enters the deodorizing section B, where it is deodorized by the action of the catalyst applied to the honeycomb structure that promotes the deodorizing effect.

Next, in the sterilization section C, the air is sterilized using, for example, an ultraviolet lamp 4, and a catalyst that promotes a good deodorizing effect of the ultraviolet lamp 4 is activated.

[Problem to be solved by the invention]

However, in order to increase the effect of the catalytic action that promotes deodorization, it is necessary to increase the surface area of the deodorizing part B, and there is a problem that the deodorizing part B becomes large even though it has a honeycomb structure.

The present invention provides an air purifier that aims to reduce cost, size, and weight.

[Means to solve the problem]

In an air purifier composed of an electrostatic precipitator section A, a deodorizing section B coated with a catalyst that promotes the deodorizing effect, a sterilizing section C, and a blower section, the dust collecting electrode of the electrostatic precipitator section A (
2) is coated with a catalyst (7) that promotes the deodorizing effect.

[For production]

According to the present invention, dust in the air accumulates in the front part of the dust collecting electrode near the ionizing electrode, and is difficult to accumulate in the rear part of the collecting electrode near the blower. The deodorizing effect is not reduced because the catalyst that promotes the effect is not hidden by dust.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 and FIG. 2 are schematic diagrams of an air cleaner according to the present invention.

In the figure, 1 is a high-voltage DC power supply, 2 is a dust collection electrode, 3 is an ionization electrode, 4 is an ultraviolet lamp, 5 is a socket, 6 is a fan, 7 is a catalyst that promotes the deodorizing effect, such as titanium oxide,
8 indicates dust, 9 indicates a cylindrical fan, and 10 indicates ground. Further, A indicates an electric dust collector section, B indicates a deodorizing section, C indicates a sterilization section, and D indicates a blower section. In the air cleaner of the present invention, the electrostatic precipitator section A and the sterilization section C are the same as those of the conventional example,
The blower parts in FIGS. 1 and 2 are shown to emit clean air laterally and upwardly.

The deodorizing section B of the present invention has a structure in which the catalyst is fixed in the dust collection chamber rF12 of the electrostatic precipitator section A as a device for fixing a catalyst that promotes the deodorizing effect.

That is, high voltage DC is applied to the ionizing electrode 3 from the high voltage DC power supply 1.
and connects the dust collecting electrode 2 to ground 10. 1st
In the figure and FIG. 2, an ionizing electrode 3 is shown between the dust collecting electrode 2.
They are arranged so that they are sandwiched between them, but such arrangements can be stacked in multiple stages to increase the dust collection effect. Air passes from the left to the right in the drawing due to suction from the blower. Floating particles of dust 8 contained in the air are given an electric charge by the ionization electrode 3 and are attracted to the dust collection chamber 52 at ground potential.

At this time, the dust 8 adhering to the dust collecting electrode 2 adheres to a portion of the dust collecting electrode 2 close to the ionization electrode 3, and does not adhere to a portion of the dust collecting electrode 2 near the air blowing section. Therefore, the air passes through the portion coated with the catalyst 7 that promotes the deodorizing effect of the dust collection electrode 2 and is deodorized.

Thereafter, the air is sterilized by the ultraviolet lamp 4 and discharged from the air blower to the outside of the air cleaner.

〔Effect of the invention〕

According to the present invention, since the dust collection electrode is coated with a catalyst that promotes the deodorizing effect, the honeycomb coated with the catalyst that promotes the deodorizing effect is no longer necessary, so it is possible to provide a small, lightweight, and inexpensive air purifier. .

[Brief explanation of the drawing]

1 and 2 are schematic diagrams of an air cleaner according to the present invention, and FIG. 3 is a schematic diagram of an air cleaner illustrating the conventional side. In the figure, 1-.- High voltage DC power supply 2-.- Dust collection electrode 3-.-
・・・・−・Ionizing electrode 4−・−−−1・・・UV lamp 5−m−−Socket 6−−−−−・
Fan 7--Catalyst 8--
111 Dust 9 --- Fan 10 ----- Earth 11 --- 11 Honeycomb A --- 1 Electrostatic precipitator section B --- 1. Deodorizing section C -
・−・・Sterilization part D −−−−−1・Blower part

Claims (1)

[Scope of Claims] An air purifier comprising an electrostatic precipitator section A, a deodorizing section B coated with a catalyst that promotes the deodorizing effect, a sterilizing section C, and an air blowing section D. An air purifier characterized in that the dust electrode (2) is coated with a catalyst (7) that promotes the deodorizing effect.