KR100570714B1 - Apparatus for generating negative ion in air cleaner - Google Patents

Abstract

The present invention relates to a net ion generating device of an air purifier that removes ozone and nitrogen dioxide (NO 2) by generating anion in an ionization method (pure ion method), and allows anion to propagate away regardless of humidity. The present invention is an anion generator of a conventional air purifier comprising a command selection unit, a timer, an operation display unit, a memory, an anion control unit, and a controller, which is connected to the anion control unit, and is connected to the anion control unit in air according to the high frequency signal generated by the anion control unit. Cations (plus ions) are shorted and extinguished, and constitute a pure ion generating unit which emits only pure anions, the pure ion generating unit comprising: a field generating unit generating an electric field; Plasma is located on the vertical line with the field generator, and formed around the plasma region formed by a corona discharge method, a relatively small plasma region to shorten and eliminate the cations and to emit only pure anions, thereby implementing a plasma Since the oxygen / nitrogen atoms separated by the phenomenon can be prevented from recombining with air in advance, only anions that are beneficial to the human body can be generated without generating ozone and nitrogen oxides.

Description

Apparatus for generating negative ion in air cleaner

1 is a conceptual diagram of a negative ion generator by a corona discharge method applied to a conventional air purifier,

Figure 2 is a block diagram showing the configuration of a pure ion generating device of the air purifier according to the present invention,

Figure 3 is a configuration diagram of an embodiment of the pure ion generating unit in the present invention.

<Explanation of symbols for the main parts of the drawings>

180 ..... Pure ion generator

181 ..... Electric field generator

182 ..... negative ion release needle

The present invention relates to a pure ion generating device of an air purifier, and more particularly, to generate anion in an ionization method (pure ion method) to eliminate the generation of ozone and nitrogen dioxide (NO 2), and to remove anion regardless of humidity. It relates to a net ion generating device of an air purifier that is capable of propagating far away.

Most of the modern people have been living indoors for a long time, and keeping the indoor air clean has been the key.In order to change the indoor air into healthy breathing air, it is possible to use the air in any office, living room, or room. A purifier was provided.

Healthy breathing air refers to air free of harmful gas components or various odorous substances. It should contain as few VOCs (volatile organic substances), bacteria, viruses and new electromagnetic waves as possible. In other words, the more harmful substances in the air, the less the anions and the more positive ions. Air containing high amounts of cations significantly reduces human comfort, condition and concentration, and deteriorates the quality of life as a cause of various diseases. It is a known fact that has been found as a result of the research.

Therefore, a technology for purifying indoor air has been developed and known. The air purifying technology known to date is mainly used by using a filter or an electric dust collector to remove indoor dust, dust and odors and clean the indoor air cleanly. To achieve.

In general, there is a disadvantage in that the air is not effectively kept clean by the filter alone. Recently, many air purifiers using an electrostatic precipitating anion have been developed.

Negative ions have an effect on the parasympathetic nerve to relax the mind and body to stabilize and calm the body, protect the body from disease, increase immunity and effectively remove various contaminants in the air.

1, the concept of the negative ion generating device applied to the conventional air purifier is shown.

Reference numeral 10 denotes a discharge needle, and 20 denotes an electrode plate.

The high pressure current flows through the discharge needle 10, and the pole plate 20 is grounded to generate negative ions. In general, when more than one voltage is applied to an insulator, it acts as a conductor. This phenomenon is called electric breakdown, and an electric current flowing along with the breakdown is called an electric discharge.

When a DC voltage is applied between the discharge needle 10 and the electrode plate 20 and the value thereof gradually increases, air at the tip of the discharge needle 10 causes insulation breakdown and emits weak light. At this time, a current of about microamps flows between the electrodes. This discharge is called a corona discharge.

The corona discharge separates (dissociates) nitrogen (N 2) / oxygen (O 2) molecules in the air. At this time, the positive ions generated in the plasma region around the electrode plate 20 away from the discharge needle 10 are not adsorbed by the discharge needle 10 and are released to the outside of the apparatus to recombine to generate ozone and nitrogen oxides. In other words, the separated oxygen atoms combine again to form oxygen molecules and ozone (O3), and thus ozone is generated in the air. In addition, the separated nitrogen atoms also recombine with oxygen molecules in the air to generate nitrogen oxides (eg, nitrogen dioxide (NO 2)).

The ozone and nitrogen oxides thus produced cause odors and act as impurities and are not beneficial to the human body.

In addition, the negative ion generating device using a conventional corona discharge method propagates the generated negative ions in the air using moisture between the electrodes. Therefore, the electronic distance is limited by the humidity in the air caused a disadvantage.

Accordingly, the present invention has been proposed to solve various problems generated in the negative ion generating device by the corona discharge method applied to the conventional air purifier,

SUMMARY OF THE INVENTION An object of the present invention is to provide a pure ion generating device of an air purifier that eliminates the generation of ozone and nitrogen dioxide (NO 2) by generating anions in an ionization method (pure ion method), and allows the anions to propagate away regardless of humidity. There is.

Pure ion generating device of the air purifier according to the present invention for achieving the above object,

In the negative ion generating device of a conventional air purifier comprising a command selection unit, a timer, an operation display unit, a memory, an anion control unit, and a controller,

It is connected to the anion control unit, according to the high frequency signal generated by the anion control unit is characterized in that it comprises a pure ion generating unit for shorting and extinguish the cations (plus ions) in the air, and releases only pure anions.

In the above, the pure ion generating unit,

An electric field generator generating an electric field;

Located on the vertical line with the field generator, and formed around the plasma region formed by a relatively small corona discharge method by forming a relatively small plasma region, the cations are shorted and extinguished, characterized in that composed of an anion emitting needle that emits only pure anions do.

In the above, the anion release needle is made of tungsten material, characterized in that formed three at regular intervals on the vertical line with the field generator.

Hereinafter, described in detail with reference to the accompanying drawings, preferred embodiments of the present invention according to the technical spirit as described above.

2 is a block diagram showing the configuration of a pure ion generating device of the air purifier according to the present invention.

As shown therein, the command selection unit 110, the timer 120, the power supply unit 130, the memory 140, the operation display unit 150, the controller 160, and the negative ion control unit 170 are described. ) And the pure ion generating unit 180.

Here, the command selector 110 includes a plurality of selection switches for selecting and inputting various commands related to power and negative ions, and the timer 120 generates a time value for checking elapsed time and provides the controller 160 with the power. The supply unit 130 receives the AC power input from the outside, converts it into an appropriate DC voltage such as 12V and 5V, and supplies driving power to each component.

In addition, the operation display unit 150 displays the selection of the command selection unit 110 and the operation state of the air purifier according to the control signal of the controller 160, and the controller 160 selects the command selection unit 110. According to the command to control the operation of the various devices, the negative ion control unit 170 receives the PWM signal from the controller 160 to generate a high frequency signal.

On the other hand, the pure ion generating unit 180 is a newly configured part according to the present invention. When receiving a high frequency signal from the anion control unit 170, the pure ion generating unit amplifies the high voltage using its own resonance, and the field generator 181 and tungsten By using the three anion release needle 182 made of a material, the cations are shorted and extinguished, and only the anions are released.

That is, the operation of the pure ion generating unit 180 will be described in more detail with reference to FIG. 3 as follows.

When a high voltage is applied to the negative electrode, the tip of the anion-emitting needle 182, which has a sharp tip, becomes high temperature. When air molecules come into contact with the high temperature part, the energized air molecules generate a dissociated plasma phenomenon. It becomes an ion (cationic) and a negative ion (anion). In the plasma region, the cations are absorbed by the negative ion discharge needle 182 to which the high voltage of the cathode is applied, and a short occurs and disappears. Electrons (negative ions) that remain electrically negatively repel the same anion-emitting needle 182, escape from the plasma region, and each other at the poles such as negative ions contained in air molecules other than the plasma region or moisture in the air. Repulsion spreads in the air.

In the conventional case using the corona discharge method, the space between the counter electrode (pole plate) 20 and the discharge needle 10 becomes a plasma region, and at this time, the positive generated in the plasma region around the pole plate 20 away from the discharge needle 10. Ions are released without being adsorbed to the discharge needle 10 to combine with oxygen molecules to generate ozone and nitrogen oxides. In addition, the negative ions disappeared into the positive electrode plate 20 and caused a disadvantage of neutralizing the negative ions in the process of diffusion.

In contrast, the present invention includes the field generator 181 instead of the conventional counter electrode. For this reason, the plasma phenomenon occurs only in a very small area around the anion emitting needle 182, and thus positive ions can be shorted and extinguished, thereby preventing ozone and nitrogen oxides from recombination.

According to the present invention as described above, since the positive ions generated by the plasma phenomenon can be shortened and extinguished, the recombination can be prevented in advance, so that only anions that are beneficial to the human body can be generated without generating ozone and nitrogen oxides. have.

In addition, the anion generator according to the present invention has the effect that can be diffused in the air only pure anions regardless of humidity.

Claims (3)

delete An electric field generator 181 forming an electric field; Located on the vertical line with the field generator 181, the tip is composed of a point anion emission 182, When the high voltage of the negative electrode is applied to the anion release needle 182, the anion release needle 182 absorbs and shortens the cations in the plasma region formed in the periphery to generate pure ions, characterized in that to release only pure anions. Device. The pure ion generating device of claim 2, wherein the negative ion generating needle 182 is made of tungsten and formed three at regular intervals on a vertical line with the field generator 181.

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