JP5179261B2 - Electrostatic atomizer - Google Patents

Description

  The present invention relates to an electrostatic atomizer that generates charged fine particle water using an electrostatic atomization phenomenon.

  Conventionally, a discharge electrode, water supply means for supplying water to the discharge electrode, a counter electrode facing the discharge electrode, and a high voltage applying means for applying a high voltage between the discharge electrode and the counter electrode There is known an electrostatic atomizer that electrostatically atomizes water supplied to a discharge electrode by applying a high voltage to generate charged fine particle water.

  The discharge electrode in the conventional electrostatic atomizer has a needle shape with a sharp tip, and the counter electrode is disposed so as to face the tip of the needle-like discharge electrode, and faces the needle-like discharge electrode. When a high voltage is applied between the electrodes, the Coulomb force acts on the water supplied to the tip of the needle-like discharge electrode, the water level rises locally in a cone shape, and a tailor cone is formed, When the electric charge concentrates on the tip of the tailor cone and the electric field strength in this portion increases, and the electric charge concentrates on the tip of the tailor cone and the charge density becomes high, the solution at the tip of the tailor cone becomes large. In response to energy (repulsive force of high-density electric charges), nanometer-sized charged fine particle water is generated by repeating splitting and scattering (Rayleigh splitting) exceeding the surface tension.

  In this way, conventionally, water supplied to the tip of the needle-like discharge electrode is formed as a tailor cone and electrostatic atomization is performed, so only one tailor cone can be formed on one discharge electrode. There was a problem that the amount of charged fine particle water produced was small.

  Thus, Patent Document 1 proposes an electrostatic atomizer provided with a plurality of needle-shaped discharge electrodes in order to generate a large amount of charged fine particle water.

However, the conventional example disclosed in Patent Document 1 requires a plurality of discharge electrodes, and the plurality of discharge electrodes are needle-shaped with a pointed tip, which is cumbersome to manufacture and costly. In addition, in order to enable stable electrostatic atomization of all the discharge electrodes under the same conditions, the dimensional accuracy of the discharge electrodes, the accuracy of the arrangement position, adjustment of the applied voltage, etc. are required, There is a problem that it is difficult to stably electrostatically atomize water supplied to the tips of a plurality of discharge electrodes.
JP 2006-205013 A

  The present invention has been invented in view of the above-described conventional problems, and has a simple structure capable of generating a large amount of charged fine particles by forming a plurality of tailor cones on one discharge electrode. It is an object to provide an apparatus.

In order to solve the above problems, an electrostatic atomizer according to the present invention includes a discharge electrode 1, water supply means 2 for supplying water W to the discharge electrode 1, and a long counter electrode facing the discharge electrode 1. 3 and a high voltage applying means 4 for applying a high voltage between the discharge electrode 1 and the counter electrode 3, and the water W supplied to the discharge electrode 1 is electrostatically applied by applying the high voltage. An electrostatic atomizing device 5 for atomizing, wherein the discharge electrode 1 and the counter electrode 3 are long, and the long discharge electrode 1 and the long counter electrode 3 are respectively in the longitudinal direction. It is arranged in parallel so as to be parallel, provided with an opening 6 for discharging electrostatically atomized charged fine particle water on the counter electrode 3 side , the discharge electrode 1 is a wire or a plate, A plurality of protrusions 7 are arranged in parallel in the longitudinal direction of the long discharge electrode 1, and each protrusion 7 protrudes toward the long counter electrode 3 side. It is characterized in that formed by.

With such a configuration, water W is supplied to the long discharge electrode 1, and a high voltage is generated between the long discharge electrode 1 and the long counter electrode 3 arranged in parallel to face the discharge electrode 1. Is applied, water W is formed as a tailor cone T at a plurality of locations in the longitudinal direction of one long discharge electrode 1, and electrostatic atomization is performed at a plurality of locations to generate a large amount of charged fine particle water. The generated charged fine particle water can be discharged from the opening 6 provided on the counter electrode 3 side. Moreover, the structure of the discharge electrode 1 can be simplified by using the discharge electrode 1 as a wire. Further, the tail cones T of the water W are stably formed at the plurality of projections 7 of the long discharge electrode 1, and electrostatic atomization is performed, so that a large amount of charged fine particle water can be generated stably.

  Moreover, it is preferable that the water supply means 2 supplies the water W by flowing the water W along the long discharge electrode 1.

  By adopting such a configuration, the water W is stably supplied to each part of the long discharge electrode 1 by flowing the water W along the long discharge electrode 1. A tailor cone T is formed at a plurality of locations in the longitudinal direction and electrostatic atomization is performed at a plurality of locations, so that a large amount of charged fine particle water can be generated.

  Moreover, it is preferable that the water supply means 2 is a cooling means 8 for cooling the long discharge electrode 1 to generate moisture in the air in the long discharge electrode 1.

  With this configuration, the long discharge electrode 1 is cooled to generate moisture in the air as condensed water over the entire length of the long discharge electrode 1, and generated over the entire length of the long discharge electrode 1. The condensed water (water W) is formed as a tailor cone T at a plurality of locations in the longitudinal direction of the long discharge electrode 1 and electrostatic atomization is performed at a plurality of locations to generate a large amount of charged fine particle water.

  In the present invention, as described above, the discharge electrode and the counter electrode are each long, and the long discharge electrode and the long counter electrode face each other so that their longitudinal directions are parallel to each other. Since there are openings for discharging electrostatically atomized charged fine particle water on the counter electrode side, tailor cones are formed at a plurality of locations in the longitudinal direction of one long discharge electrode to form electrostatic discharges. Atomization can be performed, and a large amount of charged fine particle water can be generated and discharged from the opening with a single discharge electrode. In generating a large amount of charged fine particle water, A large amount of charged fine particle water can be stably generated with a simple configuration with a single discharge electrode without the need for a discharge electrode having a shape.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  The electrostatic atomizer 5 of the present invention includes a discharge electrode 1, a water supply means 2 that supplies water W to the discharge electrode 1, a long counter electrode 3 that faces the discharge electrode 1, and a discharge electrode 1. High voltage applying means 4 for applying a high voltage between the counter electrode 3 is provided.

  The discharge electrode 1 is a conductive material such as a metal wire as in the embodiments of FIGS. 1, 2, 3, 4, and 5, or a narrow and long metal plate as in the embodiment of FIG. It is formed by a long member of the nature.

  An example of a metal wire can be a wire such as a φ0.1 tungsten wire. Of course, other metal wires may be used, and the diameter is not limited to the above example.

  The counter electrode 3 is formed of a long member having conductivity. In the embodiment shown in FIGS. 1, 2, 3, and 4, a punching metal and a perforated plate are formed in a U-shaped cross section. A large number of openings 6 are formed for discharging the electromisted charged fine particle water. Further, in FIG. 5, the counter electrode 3 is configured by arranging a pair of strip-shaped metal plates 10 side by side at a predetermined interval, and an electrostatic fog is formed between one end portions of the pair of strip-shaped metal plates 10. The opening 6 is used to discharge the charged fine particle water. In the embodiment shown in FIG. 6, the counter electrode 3 is formed of a corrugated metal plate, and the opening 6 is formed at the top of the wave crest 11 of the corrugated metal plate.

  The long discharge electrode 1 and the long counter electrode 3 are arranged to face each other so that their longitudinal directions are parallel to each other.

  In each embodiment shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 4, the discharge electrode 1 made of a wire is located between the tips of both side pieces of the counter electrode 3 having a U-shaped cross section. Further, in the embodiment shown in FIG. 5, the discharge electrode 1 made of a wire is located between the other ends of the pair of metal plates 10 having a band shape.

  Water W is supplied to the discharge electrode 1 by the water supply means 2.

  Each embodiment of the water supply means 2 is shown in FIGS. In the embodiment shown in FIG. 1 and FIG. 2, the discharge electrode 1 is inclined or vertical, and a water supply unit 9 (which supplies water) is supplied to the upper end of the discharge electrode 1 that is inclined or vertical. 2), and water W is supplied from the water supply portion 9 to the upper end portion of the discharge electrode 1 so that the water W is discharged from the upper end of the long discharge electrode 1 toward the lower end by gravity. The water W is supplied to each part in the longitudinal direction of the long discharge electrode 1.

  Various methods are conceivable for supplying water W from the water supply unit 9 to the upper end portion of the discharge electrode 1. For example, water is supplied by dropping water droplets on the upper end of the discharge electrode 1.

  In the embodiment shown in FIG. 1, the water supply part 9 is comprised by the water reservoir part 9a and the dew condensation water production | generation means 9b. In this example, the dew condensation water generating means 9b is constituted by a cooling means comprising a cooling part of a Peltier unit or other heat exchanger, and cools the cooling part of the heat exchanger (or a cooling member connected to the cooling part). Thus, moisture in the air is generated as condensed water, the condensed water is stored in the water reservoir 9a, and the water W stored in the water reservoir 9a is supplied to the upper end of the discharge electrode 1 from the water inlet 9c. It has become. In this embodiment, since moisture in the air is generated as condensed water and used as a water source, the user does not need to replenish water.

  In the embodiment shown in FIG. 2, the water supply unit 9 is composed of a water reservoir 9a and a supply tank 9d. An opening / closing valve 9g elastically biased in the closing direction by a spring 9f is provided at the mouth portion 9e of the replenishing tank 9d. The opening / closing valve 9g is provided with an action portion 9h, and a force for pressing the action portion 9h is applied. Unless otherwise, the opening / closing valve 9g closes the opening 9e. The water reservoir 9a is provided with an opening 9i, and when the replenishment tank 9d is turned upside down and the opening 9e is fitted into the opening 9i, the contact portion 9j provided in the water reservoir 9a has an action portion 9h. The on-off valve 9g moves against the spring 9f to open the opening 9, and the water in the replenishing tank 9d flows down and is stored in the water reservoir 9a. The water W stored in the water reservoir 9a is supplied to the upper end of the discharge electrode 1 from the water injection port 9c. In this embodiment, the user supplies water to the supply tank 9d and supplies it to the water reservoir 9a.

  In the embodiment shown in FIGS. 3, 4, 5, and 6, the discharge electrode 1 is cooled by the cooling means 8 constituting the water supply means 2, and moisture in the air is turned into the long discharge electrode 1. This is an example of generating as condensed water.

  In the case of this example, for example, the cooling part of the Peltier unit or other heat exchanger can be used as the cooling means 8, and the discharge electrode 1 is connected by connecting the end of the discharge electrode 1 to the cooling part of the heat exchanger. Water W is supplied to each part of the long discharge electrode 1 in the longitudinal direction after cooling. In the case where the discharge electrode 1 is cooled and water in the air is generated as condensed water in the long discharge electrode 1 as in this example, the posture of the discharge electrode 1 is not particularly limited, Condensed water can be generated in each part of the long discharge electrode 1.

  High voltage applying means 4 is connected to the discharge electrode 1 and the counter electrode 3.

  The electrostatic atomizer 5 supplies water W to each part in the longitudinal direction of the long discharge electrode 1 by the water supply means 2. When a high voltage is applied between the long discharge electrode 1 and the long counter electrode 3 in a state where the water W is supplied to each part in the longitudinal direction of the discharge electrode 1 in this way, A Coulomb force acts between the counter electrode 3 and the water W supplied to each part in the longitudinal direction of the long discharge electrode 1 by a high voltage applied between the counter electrode 3 arranged in parallel with the counter electrode. Thus, the liquid surface of the water W locally rises in a conical shape at a plurality of locations in the longitudinal direction of the long discharge electrode 1 to form a tailor cone T. When the tailor cones T are formed at a plurality of positions in the longitudinal direction of the long discharge electrode 1 as described above, electric charges are concentrated at the tips of the tailor cones T, and the electric field strength in this portion increases. As a result, the Coulomb force generated in this portion is increased, and the tailor cone T is further grown. As described above, when the tailor cone T grows at a plurality of locations in the longitudinal direction of the discharge electrode 1 and the charge concentrates at the tip of each tailor cone T and the density of the charge becomes high, W receives large energy (repulsive force of high-density charge) and repeats splitting and scattering (Rayleigh splitting) exceeding the surface tension to generate nanometer-sized charged fine particle water containing active species, and the counter electrode 3 It is discharged to the outside from the opening 6 provided on the side.

  Of course, the air may be blown in the direction of the arrow in the accompanying drawings by a blowing means (not shown), or the charged fine particle water may be discharged to the outside through the opening 6 in the flow of air by the blowing means.

  In the present invention, as described above, water W is formed as a tailor cone T at a plurality of locations in the longitudinal direction of one long discharge electrode 1, and electrostatic atomization is performed at a plurality of locations. 1 can generate a large amount of charged fine particle water.

  The charged fine particle water generated by electrostatic atomization in this way is extremely small and has a nanometer size, so it floats in the air for a long time and has high diffusivity, so it floats to every corner in the atomization target space. It adheres to the inner surface of the atomization target space and the items stored in the atomization target space, and the nanometer-sized charged fine particle water active species are encapsulated in water molecules, so it has a deodorizing effect, mold. It has the effect of suppressing the sterilization and propagation of bacteria and bacteria, and adheres to the inner surface of the atomization target space and the contents stored in the atomization target space, and has the effect of deodorizing fungi and bacteria and the suppression of propagation. Will be demonstrated. In the present invention, since a large amount of charged fine particle water can be generated by one discharge electrode 1 as described above, the effect of suppressing the deodorization, the sterilization of fungi and fungi, and the propagation is excellent. .

Here, in the present invention, a plurality of protrusions 7 are arranged in the longitudinal direction of the long discharge electrode 1 , and each protrusion 7 protrudes toward the long counter electrode 3. The tailor cone T may be generated.

  An example is shown in FIG. In the embodiment shown in FIG. 6, protrusions 7 having a pointed tip (for example, a triangular shape) are formed at a plurality of positions in the longitudinal direction of a narrow and long metal plate at a constant interval. The protrusions 7 may be formed on the discharge electrode 1 made of a metal wire. However, in the case where the protrusions 7 are formed on the discharge electrode 1 made of a narrow and long metal plate as shown in FIG. The discharge electrode 1 with the protrusion 7 can be formed.

  In the embodiment of FIG. 6, the counter electrode 3 has a corrugated shape, and the protrusions 7 of the discharge electrode 1 are arranged between the adjacent valleys 12 so as to face the peaks 11 of the wave of the counter electrode 3. The distance between the discharge electrode 1 and the counter electrode 3 is set so that the distance between the tip of each projection 7 and the counter electrode 3 is the shortest. An opening 6 is formed at the top of the wave peak 11.

In this embodiment, supplies water W in the longitudinal direction of each portion of the discharge electrode 1 long such Ri by the water supply means 2 as described in the previous embodiments, the elongated discharge electrode 1 and the elongated of When a high voltage is applied to the counter electrode 3, the longitudinal direction of the long discharge electrode 1 is caused by the high voltage applied between the long discharge electrode 1 and the counter electrode 3 arranged in parallel to the long discharge electrode 1. The Coulomb force acts between the water W at the tip of each projection 7 provided at a plurality of locations and the counter electrode 3, and the liquid level of the water W locally rises in a cone shape at the tips of the projection 7 at the tailor. A cone T is formed. When the tailor cones T are formed at the tips of the projections 7 provided at a plurality of positions in the longitudinal direction of the long discharge electrode 1 as described above, electric charges are concentrated at the tips of the tailor cones T, and the electric field in this portion is formed. The strength is increased, thereby increasing the Coulomb force generated in this portion, and further growing the tailor cone T. As described above, when the tailor cone T grows at a plurality of locations in the longitudinal direction of the discharge electrode 1 and the charge concentrates at the tip of each tailor cone T and the density of the charge becomes high, the water at the tip of the tailor cone T becomes water. W receives a large energy (repulsive force of high-density charge), and the surface tension is exceeded, and splitting and scattering (Rayleigh splitting) are repeated, and negatively charged nanometer-sized charged fine particle water containing active species is generated. The light is emitted to the outside from the opening 6 provided on the counter electrode 3 side. Each projection 7 is supplied with water W present in the vicinity of each projection 7 of the long discharge electrode 1.

  In this embodiment, since the tail cone T of water W is stably formed at each of the plurality of protrusions 7 of the long discharge electrode 1 and electrostatic atomization is performed, the static discharge in the long discharge electrode 1 is performed. The position where electro atomization is performed is determined, and a large amount of charged fine particle water can be generated stably.

  In each of the above-described embodiments, an example in which one long discharge electrode 1 and one long counter electrode 3 are arranged in parallel so that their longitudinal directions are parallel to each other has been shown. A plurality of long counter electrodes 3 are continuously integrated to form a counter electrode member, and one long discharge electrode 1 is provided in each longitudinal direction of each long counter electrode 3 provided on the one counter electrode member. You may arrange in parallel so that it may become parallel. In this case, a larger amount of charged fine particle water can be generated.

A plurality of protrusions 7 are arranged in the longitudinal direction of the long discharge electrode 1 , and each protrusion 7 protrudes toward the long counter electrode 3, and a tailor cone T is generated by the plurality of protrusions 7. In the embodiment shown in FIG. 6, the counter electrode 3 is formed in a corrugated shape and each protrusion 7 of the discharge electrode 1 is opposed to each peak 11 of the wave of the counter electrode 3. The counter electrode 3 is not limited to a wave shape.

An embodiment of the present invention is shown, (a) is a schematic configuration diagram, (b) is an explanatory diagram showing a state in which a tailor cone is formed at a plurality of locations of a long discharge electrode. It is a schematic block diagram which shows other embodiment same as the above. The other embodiment is shown, (a) is a schematic configuration diagram, (b) is a cross-sectional view, and (c) is a state in which tailor cones are formed at a plurality of locations of a long discharge electrode. It is explanatory drawing shown. It is a schematic block diagram which shows other embodiment same as the above. Another embodiment same as the above is shown, (a) is a schematic configuration diagram, and (b) is a sectional view. It is a schematic block diagram which shows other embodiment same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Discharge electrode 2 Water supply means 3 Counter electrode 4 High voltage application means 5 Electrostatic atomizer 6 Opening 7 Protrusion 8 Cooling means W Water T Tailor cone

Claims (3)

A discharge electrode, water supply means for supplying water to the discharge electrode, a long counter electrode facing the discharge electrode, and a high voltage applying means for applying a high voltage between the discharge electrode and the counter electrode An electrostatic atomizer that electrostatically atomizes water supplied to the discharge electrode by applying a high voltage, wherein the discharge electrode and the counter electrode are each long, and the long electrode Discharge electrodes and long counter electrodes are arranged in parallel so that their longitudinal directions are parallel to each other, and an opening for discharging electrostatically atomized charged fine particle water is provided on the counter electrode side . The discharge electrode is a wire or a plate, and a plurality of protrusions are juxtaposed in the longitudinal direction of the long discharge electrode, and each protrusion protrudes toward the long counter electrode. Electrostatic atomizer. The electrostatic atomizer according to claim 1, wherein the water supply means supplies water by flowing water along a long discharge electrode. The electrostatic atomizer according to claim 1, wherein the water supply means is a cooling means for cooling the long discharge electrode to generate moisture in the air on the long discharge electrode.

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