JPH0357826B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to improvements in ionic air cleaners used in automobiles, homes, offices, and the like.

Structure of conventional example and its problems Conventional ion generators are usually divided into an ion generating part and a blowing part, and the ion generating part has one tip, one flat plate or net shape, two wires, one flat plate or net shape, and three wires and one flat plate or net shape. There are cylinders, etc., and a fan is generally used for the air blowing part. In addition, there is no fan, and a part of the vessel is opened and grounded, and a needle-like electrode is placed inside the opening to generate anions without a fan (Special Publication No. 39-15633).
(No. 3), but this lacked safety considerations, as there was a risk of touching the needle electrode from outside the device, and it did not have a dust collection function.

In addition, it was common for ionized air purifiers to have the ionization wire and the second electrode at the same potential (Japanese Patent Publication No. 54-23147), but in order to generate anions, negative high pressure was used. However, if negative high pressure was used for the ionizing wire as the ionizing wind, there was a drawback that a large amount of ozone would be generated.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks and provides an ionic air purifier that safely supplies anions without using a fan.

Structure of the Invention The ionizing air purifier of the present invention includes a counter electrode provided behind the ionizing electrode in the wind direction and parallel to the ionizing electrode, and applying a high voltage between the ionizing electrode and the counter electrode to generate corona discharge. At the same time, a second electrode is placed between the opposing electrodes with the end face of the electrode away from the ionizing electrode, a positive high voltage is applied to the ionizing electrode, and either the opposing electrode or the second electrode is grounded, and either the other second electrode or counter electrode is applied with negative high voltage, and a needle-shaped part or thin wire is provided downwind of the electrode applied with negative high voltage to generate anions. The purpose is to safely supply anions to the outside of the vessel using ion wind.

DESCRIPTION OF EMBODIMENTS In the figure, 1 is an ionization electrode, which is placed upwind of the counter electrode 2, and is a thin metal electrode so that a corona current flows when a high voltage is applied between the counter electrode 2 and the counter electrode 2. A line is formed. The counter electrode 2 is a plate-shaped electrode arranged parallel to the wind direction.

Reference numeral 3 denotes a second electrode which is parallel to the counter electrode 2 and placed in the middle of the counter electrode 2, with the end face of the electrode lowered downwind from the counter electrode 2, and a negative high voltage is applied between it and the counter electrode 2. There is. 4 is a wire mesh provided in front of the ionization electrode 1 at right angles to the wind flow; 9;
is a wire mesh provided at the exhaust port 8, which is provided at right angles to the flow of the wind, and both are grounded. 5,
6 is a high voltage power supply that applies a high voltage to the ionization electrode 1 and the second electrode 3. 7 is an intake port, and 10 is an outer casing of the air purifier. 11 is a thin wire provided downstream of the second electrode 3.

In the above configuration, when a high voltage is applied from the power supply 5 between the ionization electrode 1 and the counter electrode 2, corona discharge is performed from the ionization electrode 1 to the counter electrode 2, and a current flows. At this time, ions flow from the ionizing electrode 1 toward the counter electrode 2, but these ions collide with air molecules and push the air toward the counter electrode 2, causing a flow of air, that is, an ion wind. At the same time, the ions charge the dust and smoke in the air and head toward the counter electrode 2, some of which adhere to the counter electrode 2, and immediately flow toward the second electrode 3, removing most of the dust and smoke from the second electrode. Attach to 3. On the other hand, the thin wire 11 provided on the leeward side of the second electrode 3 is applied with negative high voltage, and generates anions toward the counter electrode 2 and the wire mesh 9 provided at the exhaust port 8, and opposes the ionized wire 1. The ion wind induced by the electrode 2 releases the ions to the outside of the vessel. According to the experiment, wire mesh 9
It was possible to release 1 billion/cm ³ of anions with no wire mesh 9 provided, and 600 million/cm ³ of anions with the wire mesh 9 provided. In this case, the air outflow velocity was approximately 1 m/sec, and the efficiency of collecting cigarette smoke was 95%.

In the embodiment, the counter electrode 2 is grounded and a negative high voltage is applied to the second electrode 3. However, a negative high voltage is applied to the counter electrode 2, the second electrode is grounded, and the A similar effect can be obtained by providing a thin line in the area. In this case, the counter electrode 2 serves as a dust collecting electrode, and most of the dust adheres to the counter electrode 2. That is, by providing the thin wire 11 on the negative side of the high voltage applied between the counter electrode 2 and the second electrode 3, anions can be generated and dirty air can be efficiently purified without a motor fan. It is something that can be done. Of course, the same effect can be obtained even if the thin wire 11 electrode is formed into a needle shape. Further, according to the present invention, either the corresponding electrode or the second electrode is grounded, and a negative high voltage is applied to either the other second electrode or the counter electrode, so a special anion generation circuit is not provided. By providing a needle-shaped or thin metal wire in a part of the ionic air purifier, it is possible to easily generate negative ions that are good for the body.

Effects of the Invention As is clear from the above examples, the present invention induces an ion wind between an ionizing electrode and a counter electrode, collects fine dust on the electrode, and safely generates a large amount of anions. It is possible to quietly send anions to a distant place without using a motor fan, and it is also able to collect dust in the air very efficiently. Further, this embodiment has the advantage that the proportion of anions lost through the wire mesh is small and can be used safely.

[Brief explanation of drawings]

The figure is a side sectional view showing one embodiment of the present invention. 1...Ionization electrode, 2...Counter electrode, 3...
Second electrode, 8...exhaust port, 9...wire mesh, 11...thin wire.

Claims (1)

[Claims] 1. A counter electrode is provided behind the ionization electrode in the wind direction and parallel to the ionization electrode, and a high voltage is applied between these ionization electrodes and the counter electrode to generate a corona discharge and induce an ion wind. A second electrode is placed between the opposing electrodes with the electrode end face being further away from the ionizing electrode than the opposing electrode, and a positive high voltage is applied to the ionizing electrode, either the opposing electrode or the second electrode is grounded, and the other An ionic air purifier in which a negative high voltage is applied to a second electrode or a counter electrode, a needle-shaped part or a thin wire is provided on the leeward side of the electrode to which the negative high voltage is applied, and a grounded wire mesh is further provided at the exhaust port.