JPH0261301B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides an electrostatic system that provides the filter with the ability to adsorb dust and other particles in the atmosphere by installing a filter with a high dielectric constant in a strong electric field. The present invention relates to an air purifier.

Conventional technology The dust collection section of a conventional electrostatic air purifier is
As shown in FIG. 2, the ground electrode 101 is formed in a U-shaped groove, a high dielectric constant filter 102 is installed inside the ground electrode 101, and a plurality of conductive wires 103 are installed inside the ground electrode 101. ing.

In the above configuration, the dust in the air that is taken in is charged by the conductive wire 103 to which a high voltage is applied, and the dust is charged by the high dielectric constant filter provided in the electric field between the conductive wire 103 and the ground electrode 101. 102
It is adsorbed to clean the air.

Problems to be Solved by the Invention However, in the conventional configuration described above, since a high voltage is applied to all of the conductive filaments 103, the distribution of electric lines of force 104 from each of the conductive filaments 103 toward the ground electrode 101 is limited. As shown in FIG. 2, there are no electric lines of force 104 in the portions 102a of the high dielectric constant filter 102 corresponding between the conductive wires 103, and the electric field becomes non-uniform as a whole. Therefore, portion 10 of filter 102
2a had the problem that clogging occurs slowly in localized areas, and clogging occurs in other areas in a relatively short period of time.

The present invention solves the above conventional problems,
The purpose is to uniformize the electric field applied to a filter having a high dielectric constant and prevent local clogging of the filter.

Means for Solving the Problems In order to achieve this object, the electrostatic air purifier of the present invention includes a U-shaped or V-shaped grounding electrode with ventilation, and an air intake side of the grounding electrode. A high-permittivity filter of the same shape is provided in close contact with the inner surface of the filter, and multiple conductive wires are placed in the longitudinal center of the high-permittivity filter and to which a high voltage is applied by a high-voltage generator. A conductive wire grounded to the ground electrode is provided at an intermediate position between the conductive wires to uniformize the electric field applied to the high dielectric constant filter.

Effect When a high voltage is applied to a plurality of conductive filaments in this configuration, lines of electric force generated from the conductive filaments to which a high voltage is applied toward the ground electrode are generated between the conductive filaments. The electric field distribution of the high dielectric constant filter becomes almost uniform because the high dielectric constant filter is attracted to the conductive wire provided at a certain position and grounded to the ground electrode.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

As shown in the figure, a device main body 1 is provided with an inlet 2 and an outlet 3, and inside there is a blower 4 that takes in air from the inlet 2 and blows it out from the outlet 3, and a conductive fiber or linear body. An air permeable ground electrode 5 formed in a substantially U-shape is provided with an opening corresponding to the suction port 2, and a high dielectric constant filter 6 of the same shape is provided in close contact with the inner surface of the ground electrode 5. A plurality of conductive wires 8 connected to the poles of a high voltage generator 7 provided in the device main body 1 are provided in the longitudinal center of the high dielectric constant filter 6. A conductive wire 8' grounded to the ground electrode 5 is provided at an intermediate position between the conductive wires 8 and 8, and the pole of the high voltage generator 7 is connected to the ground electrode 5, so that an electric force is generated from the conductive wire 8. The structure is such that the wire 9 is generated toward the ground electrode 5.

To explain the operation in the above configuration, the blower 4
The dust in the air taken in from the suction port 1 is
The conductive wire 8 to which a high voltage is applied by the high voltage generator 7 is charged, and the conductive wire 8 and the ground electrode 5 are charged.
A high dielectric constant filter 6 provided in the electric field between
It is adsorbed to clean the air. The electric lines of force 9 generated from the conductive filaments 8 toward the grounding electrode 5 are attracted to the conductive filament 8' which is provided at an intermediate position between the conductive filaments 8 and is grounded to the grounding electrode 5. As shown in FIG. 4, the electric lines of force 9 are distributed, the electric field distribution of the high dielectric constant filter 6 is almost uniform, and the dust is almost uniformly attracted to the high dielectric constant filter 6. This alleviates local clogging.

In the drawings used to explain the above embodiment, two conductive wires 8 to which a high voltage is applied are used, and a ground electrode 5 and one conductive wire 8' grounded are used at an intermediate position. However, depending on the size of the air purifying device, even if two or more conductive wires 8 to which a high voltage is applied are provided, the conductive wire 8' grounded to the ground electrode 5 may be connected to a high voltage. If it is provided at an intermediate position between the conductive filaments 8 to which is applied, the same effect as described above can be obtained. Furthermore, it goes without saying that the shape of the ground electrode 5 is not limited to the U-shape, but may be V-shape.

Effects of the Invention As described above, according to the present invention, it is possible to obtain a high dielectric constant with a simple structure in which a conductive wire grounded to the ground electrode is provided at an intermediate position between a plurality of conductive wires to which a high voltage is applied. The electric field distribution of the filter can be made uniform, local clogging of the high dielectric constant filter can be alleviated, and an efficient electrostatic air cleaning device can be provided.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional dust collection section, FIG. 2 is an enlarged sectional view of the same dust collection section, FIG. 3 is a side sectional view of an electrostatic air purifier according to an embodiment of the present invention, and FIG. The figure is an enlarged sectional view of the dust collecting part. 5... Ground electrode, 6... High dielectric constant filter, 7
...High voltage generator, 8...Conductive wire, 8'...
Conductive striations.

Claims (1)

[Claims] 1. A ground electrode with air permeability formed in a U-shape or V-shape, a high dielectric constant filter of the same shape provided in close contact with the inner surface of this ground electrode on the air intake side, and this high dielectric constant filter. a plurality of conductive wires arranged in the center in the longitudinal direction and to which a high voltage is applied by a high voltage generator, and a conductive wire that is grounded to the ground electrode at an intermediate position between the conductive wires. Electrostatic air purifier with sexual striations.