JP5238047B2 - 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, Patent Document 1 discloses a humidifier configured to simultaneously release a micro-size large-diameter mist and a nano-size small-diameter mist (charged fine particle water) using an electrostatic atomizer. .

  In the conventional example shown in Patent Document 1, a large diameter mist discharge port and a small diameter mist discharge port are separately provided, and a large diameter mist is generated by heating a pot provided in the humidifier body. The large diameter mist is discharged to the outside from the large diameter mist discharge port, and the small diameter mist generated by the electrostatic atomizer is discharged to the outside from the small diameter mist discharge port. . And the electrostatic atomizer provided in the humidifier includes a water aggregating part that a part of the large-diameter mist is supplied to agglomerate the large-diameter mist, and a water conveying part that agglomerates water generated in the water aggregating part. To the discharge electrode, and by applying a high voltage to the discharge electrode, the water supplied to the discharge electrode is electrostatically atomized to generate a small-diameter mist and discharge it from the small-diameter mist outlet as described above. It is like that.

  However, in the above conventional example, it is necessary to transport the water generated in the agglomeration part to the tip of the discharge electrode through the water transport part. There is a possibility that the water will not be sufficiently supplied to the tip of the discharge electrode due to clogging. In addition, since it is necessary for the discharge electrode to send the water transported to the rear end of the discharge electrode in the water transport section to the front end of the discharge electrode using a capillary phenomenon or the like, the discharge electrode is formed of a porous material or has pores. For this reason, restrictions on materials for forming the discharge electrode and drilling are required.

JP 2004-361909 A

  The present invention has been invented in view of the above-described conventional problems, and discharges charged fine particle water in addition to humidified air to moisturize the human body and can be expected to have a deodorizing and sterilizing effect. It is an object of the present invention to provide an electrostatic atomizer that can stably and effectively produce fine particle water.

In order to solve the above problems, the electrostatic atomizer according to the present invention condenses moisture in the air by the discharge electrode 3, the heat exchange unit 7 including the cooling unit 5 and the heat dissipation unit 9, and the cooling unit 5. Then, in the electrostatic atomizer 4 including a high voltage application unit 16 that applies a high voltage to the water supplied to the discharge electrode 3, humidification means 2 that generates humid air, and the discharge electrode 3. A flow path for sending a part of the humidified air to the electrostatic atomization space 47 where the heat dissipating part 9 is disposed, a flow path for sending another part of the humidified air to the heat dissipating part disposition space 48 where the heat dissipating part 9 is disposed, The air passages 46 are provided to divide the air into the respective flow paths, and the temperature of the heat dissipating portion arrangement space 48 is lower than the temperature of the electrostatic atomization space 47. It is characterized by being set as follows.

With such a configuration, dew condensation water can be generated based on the humidified air in the electrostatic atomization space 47 , and water can be stably and reliably supplied to the discharge electrode 3 so that the nano-size charging can be performed. generate water particles, with the humidified air which is micro-sized mist diameter generated by the humidifying unit 2, it can be released. In this case, since the charged fine particle water is nano-sized, it moisturizes the human body and contains radicals, so that it exerts deodorizing and sterilizing effects. Moreover , in the present invention, the heat exchanging part 7 for condensing moisture in the air is provided, and the heat dissipating part 9 of the heat exchanging part 7 is arranged in the heat dissipating part arrangement space 48 into which other part of the humidified air is sent. Therefore, the heat radiation in the heat radiating section 9 is improved by the heat absorption effect of the humidified air, and as a result, the cooling efficiency of the discharge electrode 3 is improved and the condensed water can be efficiently generated in the discharge electrode 3. In addition, since the temperature of the heat dissipating part arrangement space 48 is set to be lower than the temperature of the electrostatic atomization space 47, the heat dissipating in the heat dissipating part 9 is more effectively performed.

The electrostatic atomizer of the present invention can stably generate dew condensation water and can stably generate charged fine particle water, and releases charged fine particle water in addition to humidified air to the human body. deodorant together with moisturizing, Ru can expect the sterilization effect. Moreover, the heat radiating portion of the heat exchange section, since the arrangement in addition to the heat radiating portion arranged space part is sent in humidified air, the generation of the charged water particles are effectively made stable. In addition, since the temperature of the heat dissipating part arrangement space is set to be lower than the temperature of the electrostatic atomization space, heat dissipation in the heat dissipating part is performed more effectively.

It is sectional drawing of one usage example of the electrostatic atomizer of this invention. It is a whole perspective view same as the above. It is a schematic block diagram of the electrostatic atomizer of this invention. It is sectional drawing of the other usage example of the electrostatic atomizer of this invention. It is a principal part expanded sectional view same as the above.

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

  FIG. 1 shows an embodiment of the present invention. The humidifier body 1 is provided with a flow path 12 having one end portion serving as a suction port 10 and the other end portion serving as a discharge port 11. The fan 13 and the humidified air are generated in the middle of the flow path 12. Humidification means 2 is provided.

  In the embodiment shown in FIG. 1, the water in the water storage unit 14 provided in the humidifier body 1 is humidified by the humidifying means 2 to generate humid air in the flow channel 12, and the flow channel 12 generated by the operation of the fan 13. It is discharged from the discharge port 11 as humidified air on the airflow flowing through the air.

  In addition, when the water in the water storage unit 14 is consumed, the water is supplied from the water tank 15 correspondingly.

  On the downstream side of the humidifying means 2 of the flow path 12 is a portion through which humidified air flows, that is, a humidified space 8.

  In the humidification space 8, there is disposed an electrostatic atomizer 4 that generates charged fine particle water by electrostatic atomization of water supplied to the discharge electrode 3.

  The electrostatic atomizer 4 condenses moisture in the air to supply water to the discharge electrode 3, and applies a high voltage by the high voltage application unit 16 to electrostatically atomize the water supplied to the discharge electrode 3. Thus, charged fine particle water is generated. Here, the electrostatic atomizer 4 is provided with a heat exchange unit 7 such as a Peltier unit including a cooling unit 5 and a heat radiating unit 9, and the cooling unit 5 of the heat exchange unit 7 is provided on the discharge electrode 3 side. The discharge electrode 3 is cooled by the cooling unit 5 so that moisture in the air is condensed, and the condensed water is generated in the discharge electrode 3.

  FIG. 3 shows a schematic configuration diagram of the electrostatic atomizer 4 used in the present invention.

  The Peltier unit, which is the heat exchanging unit 7, is a pair of Peltier circuit boards 27 having a circuit formed on one side of an insulating plate made of alumina or aluminum nitride having high thermal conductivity so that the circuits face each other. The BiTe thermoelectric elements 28 arranged in a large number of rows are sandwiched between the two Peltier circuit boards 27 and the adjacent thermoelectric elements 28 are electrically connected to each other by the circuits on both sides. Thus, heat is transferred from one Peltier circuit board 27 side to the other Peltier circuit board 27 side by energizing the thermoelectric element 28. Further, the cooling part 5 is connected to the outside of the one side Peltier circuit board 27, and the heat dissipating part 9 is connected to the outside of the other side Peltier circuit board 27. Then, an example of a heat radiating fin is shown as the heat radiating portion 9. The rear end of the discharge electrode 3 is connected to the cooling part 5 of the Peltier unit.

  The discharge electrode 3 is surrounded by a cylinder 30 made of an insulating material, and a window 30 a that communicates the inside and outside of the cylinder 30 is provided on the peripheral wall of the cylinder 30. Further, a ring-shaped counter electrode 25 is disposed at the tip opening of the cylindrical body 30, and the center of the ring of the ring-shaped counter electrode 25 is positioned on an extension line of the axial center of the discharge electrode 3. And the counter electrode 25 are opposed to each other, and the inside of the cylindrical body 30 is an atomization space.

  In the electrostatic atomizer 4, the cooling unit 5 is cooled by energizing the Peltier unit, the discharge unit 3 is cooled by cooling the cooling unit 5, and moisture in the air is condensed to form the discharge electrode. 3 is supplied with water (condensation water).

  When a high voltage is applied between the discharge electrode 3 and the counter electrode 25 in a state where water is supplied to the discharge electrode 3 in this way, the discharge electrode is caused by the high voltage applied between the discharge electrode 3 and the counter electrode 25. The Coulomb force acts between the water supplied to the tip 3 and the counter electrode 25, and the liquid level of the water locally rises in a cone shape (tailor cone). When the tailor cone is formed in this way, the electric charge concentrates on the tip of the tailor cone and the electric field strength in this portion increases, thereby increasing the Coulomb force generated in this portion and further growing the tailor cone. . When the tailor cone grows like this and the charge concentrates on the tip of the tailor cone and the density of the charge becomes high, the water at the tip of the tailor cone has a large energy (repulsive force of the charge that has become dense). In response to this, a large amount of nanometer-sized charged fine particle water charged negatively by repeating splitting and scattering (Rayleigh splitting) exceeding the surface tension is generated.

  The generated charged particulate water rides on the flow of humidified air flowing through the flow path 12 and is discharged from the discharge port 11 into the humidification target space.

  The humidified air containing charged fine particle water released to the humidification target space humidifies the humidification target space, and since the charged fine particle water is a nanometer-size mist, it is very small and has active species. Then, it floats in the humidification target space and flies to every corner of the humidification target space, and effectively decomposes, inactivates, suppresses or disinfects odor components, allergen substances, viruses and bacteria in the humidification target space. In particular, since the charged fine particle water is nanometer-sized water particles, it penetrates into the wall surface of the humidification target space or the object existing in the humidification target space and accumulates inside the wall or the object due to the penetration of water. Decomposes and inactivates odorous components and allergens, or suppresses or eliminates viruses and bacteria.

  Here, in the present invention, since the discharge electrode 3 and the heat radiating portion 9 are arranged in the humidification space 8 in the humidifier body 1, the discharge electrode 3 is cooled and the humidified air in the humidification space 8 is discharged to the discharge electrode 3. Is generated as dew condensation water, stably and reliably supplying water to the discharge electrode 3 to generate nano-sized charged fine particle water, and humidifying which is a large-sized micro-sized mist generated by the humidifying means 2 It can be released together with the air to humidify the room. In this case, the charged fine particle water is nano-sized and moisturizes the human skin and throat, and also contains radicals, so it exhibits deodorizing and disinfecting effects. In particular, nano-sized charged fine particle water flies far and penetrates deep into walls and curtains, so that odors that permeate walls and curtains can be reliably deodorized. Further, since the heat dissipating part 9 of the heat exchanging part 7 made of the Peltier unit is also arranged in the humidifying space 8, the heat dissipating in the heat dissipating part 9 is improved by the heat absorbing effect of the humidified air, and as a result, the cooling efficiency of the cooling part 5 is improved. As a result, the cooling efficiency of the discharge electrode 3 is improved. Therefore, energy can be saved in generating the necessary amount of condensed water.

  Next, another embodiment of the present invention will be described with reference to FIGS.

  The humidifier body 1 is provided with a humidifying means 2 comprising a hook 40 and a heater 41. By heating the hook 40 with the heater 41, water in the pot 40 is heated and evaporated to generate water vapor. ing. In the figure, reference numeral 42 denotes a flow path through which high-temperature water vapor generated by heating and evaporating water in the pot 40 flows. The downstream side of the merging chamber 43 is a discharge port 44 that is open to the outer surface of the humidifier body 1.

  The humidifier body 1 is provided with a blower passage 46 through which the wind sent by the fan 45 flows, and a blower port 46 a at the tip of the blower passage 46 opens into the merge chamber 43. The air blowing port 46 a is opened laterally in the merge chamber 43 toward the downstream side of the merge chamber 43 (that is, the discharge port 44 side).

  The humidifier body 1 further includes an electrostatic atomization space 47 in which the discharge electrode 3 of the electrostatic atomizer 4 is disposed, and a heat radiation portion in which the heat radiator 9 of the heat exchange unit 7 provided in the electrostatic atomizer 4 is disposed. An arrangement space 48 is provided.

  The electrostatic atomization space 47 in which the discharge electrode 3 is disposed communicates with the merge chamber 43. Further, the electrostatic atomization space 47 is connected to the outside via a charged fine particle water discharge port 53 that opens in the humidifier body 1. Communicate.

  In addition, since the electrostatic atomizer 4 is the same structure as the above-mentioned embodiment, detailed description is abbreviate | omitted.

  The flow path 42 is provided with a communication portion 49 that communicates with the heat radiation portion arrangement space 48. A branch channel 50 is branched from the blower channel 46, and a tip opening 51 of the branch channel 50 communicates with the heat dissipating portion arrangement space 48. The communication portion 49 and the tip opening 51 are both located upstream of the heat radiating portion 9 in the heat radiating portion arrangement space 48. Further, in the embodiment shown in the figure, the communication portion 49 is located upstream of the tip opening 51. The heat dissipating portion arrangement space 48 communicates with the outside through an outlet opening 52 that opens in the humidifier body 1.

  Moreover, although the electrostatic atomization space 47 and the heat radiation part arrangement space 48 are partitioned by a partition, the cylindrical body 30 of the electrostatic atomizer is a partition in the embodiment shown in FIGS. 4 and 5. In this embodiment, the electrostatic atomization space 47 and the merge chamber 43 communicate with each other through a window 30 a provided on the peripheral wall of the cylindrical body 30.

  When steam is generated by heating the water in the pot 40, the high-temperature steam flows through the flow path 42 to the merge chamber 43, and on the other hand, the fan 45 is operated to merge from the blower port 46 a via the blower path 46. The high-temperature water vapor and the air flow blown from the blower port 46a merge in the merge chamber 43 and are discharged from the discharge port 44 to the outside. Thus, since the water vapor discharged from the discharge port 44 to the humidification target space is a micro-size mist, the humidification target space can be effectively humidified.

  Part of the high-temperature water vapor that merges with the air flow in the merge chamber 43 flows into the electrostatic atomization space 47. As the water vapor flows in this way, the electrostatic atomization space 47 becomes the humidification space 8 (8a). That is, the discharge electrode 3 is disposed in the humidification space 8a. Therefore, when the cooling unit 5 is cooled and the discharge electrode 3 is cooled, water vapor flowing into the electrostatic atomization space 47 is condensed to generate dew condensation water, thereby supplying water to the discharge electrode 3 stably. Can do. By applying a high voltage in a state where water is supplied to the discharge electrode 3 in this way, nanometer-sized charged fine particle water is generated by electrostatic atomization. The generated charged fine particle water is discharged from the charged fine particle water discharge port 53 to the humidification target space.

  On the other hand, most of the high-temperature water vapor flowing through the flow path 42 flows into the merge chamber 43 as described above, but a part flows from the communication portion 49 into the heat radiating portion arrangement space 48 (the heat radiating portion arrangement space 48 is therefore the humidification space 8). Furthermore, the airflow flows from the blower passage 46 through the branch passage 50 to the heat dissipating portion arrangement space 48 from the tip opening 51, and the water vapor entering the passage 42 is cooled by the airflow, Heat exchange with the heat radiating section 9 is performed to cool the heat radiating section 9 and discharged from the outlet opening 52 to the humidification target space.

  Here, in this embodiment, it sets so that the temperature of the humidification space 8b which arrange | positions the thermal radiation part 9 of the heat exchange part 7 may become lower than the humidification space 8a which has arrange | positioned the discharge electrode 3. FIG. That is, the high-temperature water vapor flowing from the communication part 49 into the heat radiation part arrangement space 48 so that the temperature of the humidification space 8b in which the heat radiation part 9 of the heat exchange part 7 is arranged is lower than the humidification space 8a in which the discharge electrode 3 is arranged. The relationship between the mixing ratio of the air flow flowing into the heat dissipating portion arrangement space 48 via the branch flow path 50 and the mixing ratio of the high-temperature water vapor and the air flow in the merge chamber 43 is set in advance.

  Thus, by disposing the heat dissipating part 9 in the humidifying space 8b, heat dissipating by the heat dissipating part 9 is effectively performed by the heat absorbing effect of the humidified air, and the heat dissipating in the heat dissipating part 9 is more effectively performed by reducing the temperature of the humidified air. It will be possible.

  In the embodiment shown in the accompanying drawings, an example of the electrostatic atomizer 4 that generates charged fine particle water by applying a high voltage between the discharge electrode and the counter electrode is shown. However, the counter electrode is not provided. There may be.

2 Humidification means 3 Discharge electrode 4 Electrostatic atomizer 5 Cooling unit 7 Heat exchange unit 8 Humidification space 8a Humidification space 8b Humidification space 9 Heat dissipation unit

Claims (1)

A discharge electrode;
A heat exchanging unit having a cooling unit and a heat radiating unit;
In the electrostatic atomizer, comprising: a high voltage application unit that condenses moisture in the air by the cooling unit and applies a high voltage to the water supplied to the discharge electrode.
Humidifying means for generating humidified air ;
A flow path for sending a part of the humidified air to the electrostatic atomization space in which the discharge electrode is disposed,
A flow path for sending another part of the humidified air to the heat dissipating part space where the heat dissipating part is disposed,
An air passage that divides the wind into each of the flow paths and sends the air;
Each said flow path and the said air flow path are set so that the temperature of the said thermal radiation part space may become lower than the temperature of the said electrostatic atomization space, The electrostatic atomizer characterized by the above-mentioned .

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