JP4572621B2 - Electrostatic air purifier - Google Patents

Description

  The present invention relates to an electrostatic air cleaner that has needle-like electrodes and performs electrostatic dust collection.

  FIG. 5 is a diagram illustrating an example of a conventional electrostatic air cleaner.

Conventionally, in this type of electrostatic air cleaner, as shown in FIG. 5, a needle-like discharge electrode 1 and a counter discharge electrode 2 are provided, and a high voltage is applied between these discharge electrodes to corona. By discharging electric discharge, the dust in the air is charged and collected, and the indoor air is purified (see, for example, Patent Document 1).
No. 4-40745

  However, as shown in FIG. 5, the charge released from the needle-like electrode 1 is mainly emitted toward the counter electrode 2 and charges the dust in the air passing between the electrodes, but some of the charges are It leaks to the outside of the unit 3 of the electric air cleaner and is absorbed by the outer shell member of the product, for example, the panel 4 or the top grid 5 to charge them. The charged panel 4 and the top grid 5 adsorb dust in the air, and have a problem that the surface is immediately contaminated despite a short period of operation.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide an electrostatic air cleaner that suppresses the electric charge leaking to the outside of the electrostatic air cleaner and prevents the surface of the outer shell member of the product from becoming dirty. And

  In order to solve the conventional problem, the electrostatic air cleaner of the present invention is provided with a needle-like discharge electrode and a counter discharge electrode, and a high voltage is applied between these discharge electrodes, Electrostatic air having a plurality of configurations for charging dust contained in the air passing through the air, a plurality of conductors connecting the discharge electrodes, and an insulating cover covering the conductors In the cleaner, an opening is provided in a part of the insulating cover, and the discharge electrodes are connected to each other on a straight line connecting a needle tip of the needle-shaped discharge electrode and an edge of the opening of the insulating cover. The end face of the conductor is arranged.

  As a result, direct discharge from the needle-shaped discharge electrode to the end faces of the conductors connecting the discharge electrodes is shielded by the opening edge of the insulating cover, and leaks outside the unit of the electrostatic air cleaner. The charge to be absorbed is absorbed by the end face of the conductor connecting the discharge electrodes.

  The electrostatic air cleaner of the present invention can provide an electrostatic air cleaner that suppresses the electric charge leaking to the outside of the electrostatic air cleaner and prevents the surface of the outer shell member of the product from becoming dirty.

  The first invention provides a plurality of configurations in which a needle-like discharge electrode and a counter discharge electrode are provided, a high voltage is applied between the discharge electrodes, and dust contained in the air passing between the discharge electrodes is charged. In an electrostatic air purifier comprising a conductor that is held in a single piece and connects the discharge electrodes, and an insulating cover that covers the conductor, an opening is provided in a part of the insulating cover. By arranging the end face of the conductor that connects the discharge electrodes on a straight line connecting the needle tip of the needle-shaped discharge electrode and the edge of the opening of the insulating cover, The direct discharge from the discharge electrodes to the end faces of the conductors connecting the discharge electrodes is shielded by the opening edge of the insulating cover, and the electric charge that attempts to leak outside the unit of the electrostatic air cleaner Absorbing at the end surfaces of the conductors connecting the discharge electrodes; Ri, electrostatic air cleaner of the present invention is to suppress the charges from leaking out of the electrostatic air cleaner, it is possible to provide a surface of the outer shell member is stain-resistant electrostatic air cleaner product.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 shows a schematic diagram of an electrostatic air cleaner according to a first embodiment of the present invention.

  In FIG. 1, a needle-like discharge electrode 1 and a counter discharge electrode 2 are provided, a high voltage is applied between these discharge electrodes by a high voltage generator 6, and dust is generated between the needle-like discharge electrode 1 and the counter discharge electrode 2. A plurality of such units are provided. An insulating cover that includes a conductor 7 that connects a plurality of needle-like electrodes 1 and a conductor 8 that connects a plurality of counter electrodes 2, and covers each of the conductor 7 and the conductor 8. 9 and an insulating cover 10 are provided. The opening 11 is provided in a part of the insulating cover 10. The needle-like discharge electrode 1 and the counter discharge electrode 2 described above, the insulating cover 9 covering the conductor 7 and the conductor 8, and the insulating cover 10 are provided inside the electrostatic air purifier unit 3. It is stored.

  FIG. 2 shows a cross-sectional view of the electrostatic air cleaner according to the first embodiment of the present invention viewed from the direction of arrow A in FIG.

  In FIG. 2, the end face 14 of the conductor 8 connecting the opposing discharge electrodes is arranged on a straight line X connecting the needle tip 12 of the needle-like discharge electrode 1 and the edge 13 of the opening 11 of the insulating cover 10. It is configured to do.

  About the electrostatic air cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  Direct discharge from the needle-like discharge electrode 1 to the end face 14 of the conductor 8 connecting the opposite discharge electrodes is shielded by the opening edge 13 of the insulating cover 10 and the electrostatic air cleaner unit 3. The electric charge that is about to leak to the outside is absorbed by the end face 14 of the conductor 8 that connects the opposing discharge electrodes, and the electric charge that leaks to the outside of the electrostatic air cleaner is suppressed, and the surface of the outer shell member of the product It is possible to provide an electrostatic air cleaner that is less susceptible to contamination.

(Embodiment 2)
FIG. 3 shows a cross-sectional view of the electrostatic air cleaner according to the second embodiment of the present invention as seen from the direction of arrow A in FIG.

  In FIG. 3, the needle-like discharge electrode 1 is covered with an insulating tube 15 except for the tip 12 of the needle. Here, the same components as those of the first embodiment are given the same reference numerals and the description thereof is omitted.

  About the electrostatic air cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The acicular discharge electrode 1 emits electric charge from the tip 12, but a slight amount of electric charge is also emitted from the portion other than the tip 12, and thus leaks to the outside of the unit 3 of the electrostatic air purifier. Covering with the insulating tube 15 except for the front end portion 12 of the discharge electrode 1 suppresses the generation of charges discharged from other than the front end portion 12, and the amount of electric charge leaking outside the unit 3 of the electrostatic air cleaner. Therefore, it is possible to provide an electrostatic air cleaner that suppresses the electric charge leaking to the outside of the electrostatic air cleaner and prevents the surface of the outer shell member of the product from becoming dirty.

(Embodiment 3)
FIG. 4 shows a cross-sectional view of the electrostatic air cleaner according to the third embodiment of the present invention, viewed from the direction of arrow A in FIG.

  In FIG. 4, the needle-like discharge electrode 1 is surrounded by a resin plate 16 except for the tip 12 of the needle. Here, the same components as those of the first embodiment are given the same reference numerals and the description thereof is omitted.

  About the electrostatic air cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The acicular discharge electrode 1 emits electric charge from the tip 12, but a slight amount of electric charge is also emitted from the portion other than the tip 12, and thus leaks to the outside of the unit 3 of the electrostatic air purifier. Covering with a resin plate 16 except for the tip 12 of the discharge electrode 1 suppresses the generation of charges released from other than the tip 12 and the amount of charge leaking outside the unit of the electrostatic air cleaner. The electrostatic air cleaner of the present invention provides an electrostatic air cleaner that suppresses the electric charge leaking to the outside of the electrostatic air cleaner and prevents the surface of the outer shell member of the product from becoming dirty. be able to.

  As described above, since the electrostatic air cleaner of the present invention can suppress the electric charge leaking to the outside of the electrostatic air cleaner and make the surface of the outer shell member of the product difficult to get dirty, It can be applied to other uses.

The schematic diagram of the electrostatic air cleaner in Embodiment 1 of this invention. Sectional drawing of the electrostatic air cleaner in Embodiment 1 of this invention seen from the arrow direction A of FIG. Sectional drawing of the electrostatic air cleaner in Embodiment 2 of this invention seen from the arrow direction A of FIG. Sectional drawing of the electrostatic air cleaner in Embodiment 3 of this invention seen from the arrow direction A of FIG. Sectional view showing a conventional electrostatic air cleaner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Needle-shaped discharge electrode 2 Opposite discharge electrode 3 Electric air cleaner unit 4 Panel 5 Top surface grid 6 High voltage generator 7 Conductor 8 Conductor 9 Insulating cover 10 Insulating cover 11 Opening 12 Needle tip 13 Edge 14 End surface 15 Insulating tube 16 Resin board

Claims (1)

There are a plurality of configurations in which a needle-shaped discharge electrode and a counter discharge electrode are provided, a high voltage is applied between the discharge electrodes, and the dust contained in the air passing between the discharge electrodes is charged. In an electrostatic air cleaner comprising a conductor that connects the discharge electrodes to each other and an insulating cover that covers the conductor, an opening is provided in a part of the insulating cover, and the needle-shaped discharge An electrostatic air cleaner characterized in that an end face of a conductor connecting the discharge electrodes is arranged on a straight line connecting a needle tip of an electrode and an edge of an opening of the insulating cover.

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