JP2012066221A - Electrostatic atomizing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrostatic atomizing device that suppresses the amount of ozone generation and stably increases the amount of charged particulate water generation without increasing a voltage applied to an atomizing electrode.SOLUTION: The electrostatic atomizing device 10 includes: a high-voltage generation circuit 11; an atomizing electrode 12 which is applied with a high voltage generated in the high-voltage generating circuit 11; and a water supplying unit 14 for supplying a water to be atomized to the atomizing electrode 12. The electrostatic atomizing device is characterized by a vibration wave generation part 23 for emitting vibration waves to a discharge portion 12a as a discharge area of the atomizing electrode 12.

Description

  The present invention relates to an electrostatic atomizer that generates charged fine particles by applying a high voltage to water.

  A high-voltage generating circuit and an atomizing electrode to which a high voltage generated by the high-voltage generating circuit is applied; applying a high voltage to the water on the atomizing electrode causes the water to atomize; An electrostatic atomizer that generates charged fine particle water of a size is known (see, for example, Patent Document 1). The nanometer-sized charged fine particle water (nanoion mist) has a particle size of about 1 to several tens of nm, which is smaller than 70 nm, which is the size of the horny cells of the human body. Water is sufficiently replenished even to the back of the stratum corneum surface. And a high moisturizing effect is obtained.

  Further, the charged fine particle water generated by electrostatic atomization contains radicals such as hydroxy radicals, and it is known that there are effects such as a deodorizing effect, a sterilizing effect, and an allergen inactivating effect.

  In the conventional electrostatic atomizer as described above, when increasing the generation amount of charged fine particle water and the amount of radicals contained in the charged fine particle water, the voltage applied to the atomization electrode is increased by the high voltage generation circuit. The method was taken.

JP 2005-131549 A

  However, in the conventional electrostatic atomizer, in order to increase the generation amount of charged fine particle water, if the voltage applied to the atomization electrode is increased by the high voltage generation circuit, there is a possibility that arc discharge or short circuit may occur. There is a problem that the charged fine particle water cannot be stably generated. Moreover, when the voltage applied to the atomization electrode is increased, there is a problem that the amount of ozone generated increases.

  The present invention has been made to solve the above-described problems, and its object is to suppress the generation amount of ozone without increasing the voltage applied to the atomizing electrode, and to stably charge the charged fine particle water. It is providing the electrostatic atomizer which can increase generation amount.

  In order to solve the above-described problems, an electrostatic atomizer of the present invention includes a high voltage generation circuit, an atomization electrode to which a high voltage generated by the high voltage generation circuit is applied, and a fog on the atomization electrode. An electrostatic atomizing device comprising a liquid supply means for supplying water to be atomized, wherein a vibration wave generator for irradiating a vibration wave to a discharge region of the atomizing electrode is provided.

In the electrostatic atomizer, the vibration wave is preferably at least one selected from ultrasonic waves and microwaves.
In this electrostatic atomizer, it is preferable that the ultrasonic wave has an irradiation frequency of 20 kHz to 600 kHz.

In this electrostatic atomizer, the microwave is preferably irradiated with a frequency of 2 GHz to 4 GHz.
In this electrostatic atomizer, it is preferable that the electrostatic atomizer is provided with a shielding portion that prevents irradiation of the vibration wave to regions other than the discharge region.

  In the electrostatic atomizer, a control unit for controlling a voltage applied by the high voltage generation circuit is provided, and the control unit includes an irradiation amount of the vibration wave in the vibration wave generation unit and water in the liquid supply unit. It is preferable to control at least one selected from the supply amount of.

  In this electrostatic atomizer, an ambient air sensor that detects at least one selected from the temperature, humidity, and atmospheric components of the environment in which the electrostatic atomizer is used is provided, and based on the measured value of the ambient air sensor, It is preferable that at least one selected from an irradiation amount of the vibration wave in the vibration wave generation unit and a supply amount of water in the liquid supply unit is controlled.

  According to the present invention, it is possible to suppress the generation amount of ozone and increase the generation amount of charged fine particle water stably without increasing the voltage applied to the atomizing electrode.

It is a schematic block diagram of the electrostatic atomizer in 1st Embodiment. It is a flowchart which shows the flow of control in the electrostatic atomizer of 1st Embodiment. It is a schematic block diagram of the electrostatic atomizer in 2nd Embodiment. It is a flowchart which shows the flow of control in the electrostatic atomizer of 2nd Embodiment. It is a schematic sectional drawing of the electrostatic atomizer of another example.

(First embodiment)
A first embodiment of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the electrostatic atomizer 10 of the first embodiment includes a high voltage generation circuit 11, an atomization electrode 12, a counter electrode 13 facing the atomization electrode 12, and the atomization electrode 12. The main body is constituted by the liquid supply means 14 for supplying water to be atomized. A high voltage generated by the high voltage generation circuit 11 is applied to the atomizing electrode 12.

  The atomizing electrode 12 and the counter electrode 13 are attached to a substantially cylindrical casing 15 serving as a casing. A liquid supply means 14 is attached to one end edge of the casing 15. A counter electrode 13 is attached to the other edge of the casing 15, and the counter electrode 13 side in the casing 15 is an electrostatic atomization chamber 16. A ventilation opening 15 a is provided in the side wall portion of the housing 15.

  In the present embodiment, the liquid supply means 14 condenses water vapor in the air by the cooling means, and a Peltier module 17 that is a semiconductor electronic heat exchange element is used as the cooling means. The liquid supply means 14 connects the heat absorbing portion 17a of the Peltier module 17 to a cooling unit 18 made of a material such as an insulating material having a high thermal conductivity and a low electric conductivity. The liquid supply means 14 connects the heat radiating portion 17b of the Peltier module 17 to a heat radiating portion 19 having heat radiating fins made of a material having high thermal conductivity such as aluminum. The cooling unit 18 is attached to the other end edge of the cylindrical casing 15. The cooling part 18 has a base part 18a in which a part located in the housing 15 rises in a truncated cone shape toward the inside, and the atomizing electrode 12 is erected there.

  The atomizing electrode 12 is made of a material having high thermal conductivity and high electrical conductivity, such as copper, aluminum, tungsten, titanium, and alloys thereof. The atomizing electrode 12 is molded in a columnar shape, and a discharge part 12a as a discharge region is provided at the tip of the atomizing electrode 12, and is shaped into a sharp cone. The base end portion 12b of the atomizing electrode 12 is embedded in the central portion of the base portion 18a in plan view, and the discharge portion 12a of the atomizing electrode 12 is electrostatically directed toward the other end side of the housing 15. It protrudes into the atomizing chamber 16.

  The counter electrode 13 has a flat plate ring shape, is attached to one end edge of a cylindrical casing 15, and communicates the inside and outside of the electrostatic atomization chamber 16 through a central hole 13 a. The counter electrode 13 and the atomizing electrode 12 are arranged such that the atomizing electrode 12 is disposed at the center of the hole 13a at the center of the counter electrode 13 in plan view. The counter electrode 13 and the atomizing electrode 12 are arranged such that the counter electrode 13 and the discharge part 12a of the atomizing electrode 12 are arranged at regular intervals in a side view. A high voltage is applied between the activating electrode 12.

  The operation of the basic configuration of the electrostatic atomizer 10 described above will be described. In order to supply water to the atomization electrode 12, the cooling control unit 20 is operated and supplied to the Peltier module 17 of the cooling means while controlling the current. Then, movement of heat occurs in the Peltier module 17, heat is absorbed by the heat absorbing portion 17a of the Peltier module 17, and heat is dissipated by the heat radiating portion 17b. And the atomization electrode 12 is cooled through the cooling part 18 connected to the heat absorption part 17a, and the air around the atomization electrode 12 is cooled to reach the dew point or less, so that the surface of the atomization electrode 12 Condensed water is generated on the top, and this is water to be atomized by the atomizing electrode 12.

  Then, with the condensed water attached to the discharge part 12a of the atomization electrode 12, the discharge part 12a side of the atomization electrode 12 becomes a negative electrode and is opposed to the atomization electrode 12 by the high voltage generation circuit 11 so that charges are concentrated. A high voltage is applied between the electrodes 13. As a result, the condensed water held in the atomizing electrode 12 is pulled up to the counter electrode 13 side by electrostatic force to form a shape called a Taylor cone, and repeatedly undergoes Rayleigh splitting to form nanometer-sized charged fine particle water. Is released (electrostatic atomization).

  The generated charged fine particle water is negatively charged and moves toward the counter electrode 13 by the electric field generated between the atomizing electrode 12 and the counter electrode 13, and the hole in the center of the counter electrode 13. 13a is discharged outside the electrostatic atomization chamber 16. The amount of charged fine particle water generated by electrostatic atomization is estimated by the voltage applied between the counter electrode 13 and the atomization electrode 12 by the high voltage generation circuit 11 and the value of the current flowing between the electrodes. The An ammeter 21 that measures a current value that flows when a voltage is applied is provided on a circuit between the atomizing electrode 12 and the counter electrode 13. The control unit 22 including an electronic circuit adjusts the voltage applied by the high voltage generation circuit 11 and the current flowing between both electrodes according to the current value measured by the ammeter 21. When the applied voltage is constant, the amount of charged fine particle water generated increases as the current value increases.

  The charged fine particle water generated by electrostatic atomization contains superoxide radicals and hydroxy radicals, and is known to have effects such as deodorizing and sterilizing effects, allergen inactivating effects, and agricultural chemical degrading effects. Yes. These effects are dramatically improved by stabilizing and increasing the amount of charged fine particle water generated.

  The energy of hydrogen bonds acting between water molecules is 9.6 to 26.4 (kJ / mol), and the charged fine particle water generated by atomizing water is between the atomizing electrode 12 and the counter electrode 13. If the voltage applied to is increased, hydrogen bonds are easily broken and the amount generated is increased. However, when the applied voltage is increased, there is a possibility that arc discharge or a short circuit may occur, thereby causing problems that the charged fine particle water cannot be stably generated or the amount of ozone generated is increased. Therefore, in the electrostatic atomizer 10 of the present invention, the vibration wave generator 23 is provided in order to increase the amount of charged fine particle water generated without increasing the voltage applied between the atomizing electrode 12 and the counter electrode 13. It is provided.

  The vibration wave generator 23 irradiates the vibration wave with the amount of vibration wave to be irradiated being varied and adjusted to an arbitrary amount by the vibration wave control unit 24. The vibration wave control unit 24 is controlled by the control unit 22. The vibration wave generator 23 is disposed outside the side wall of the casing 15 and is formed on the side wall, and is connected to the discharge part of the atomization electrode 12 from the irradiation opening 15b that communicates the outside of the side wall and the electrostatic atomization chamber 16. Irradiate a vibration wave toward 12a. More specifically, the vibration wave is irradiated toward the condensed water (Taylor cone) held in the discharge part 12a of the atomizing electrode 12. Examples of the vibration wave include ultrasonic waves and microwaves. When the vibration wave is an ultrasonic wave, the frequency of irradiation is preferably 20 kHz to 600 kHz. When the vibration wave is a microwave, the frequency of irradiation is preferably 2 GHz to 4 GHz. By adjusting the frequency of irradiation within these numerical ranges, the amount of charged fine particle water generated can be increased efficiently.

  Moreover, you may provide the shielding cover 25 as a shielding part which prevents the irradiated vibration wave from irradiating area | regions other than the discharge part 12a, for example, the atomization electrode 12 and the counter electrode 13. FIG. The shielding cover 25 is molded into a plate shape by, for example, a synthetic resin, and an irradiation hole 25a having a smaller opening diameter than the irradiation opening 15b formed in the housing 15 is formed. The shielding cover 25 is attached to the outer surface of the side wall of the housing 15 so that a straight line connecting the vibration wave generation unit 23 and the discharge unit 12a passes directly through the irradiation hole 25a. Since the shielding cover 25 is arranged so that the irradiation hole 25a is not located on the straight line connecting the vibration wave generating unit 23, the atomizing electrode 12 and the counter electrode 13, the vibration is generated in the atomizing electrode 12 and the counter electrode 13. No waves are irradiated.

  The housing 15, the cooling control unit 20, the heat absorption part 17 a and the heat radiation part 17 b of the Peltier module 17, the cooling part 18 and the heat radiation part 19, the control part 22, the high voltage generation circuit 11, the vibration wave generation part 23, the vibration wave control. The part 24 is accommodated in an outer casing (not shown).

  The amount of charged fine particle water generated by atomization is determined by the vibration wave generated by the vibration wave generator 23 when the value of the voltage applied between the atomization electrode 12 and the counter electrode 13 by the high voltage generation circuit 11 is constant. The amount of irradiation increases and the amount of water supplied in the liquid supply means 14 increases. In this embodiment, in order to adjust the generation amount of charged fine particle water and stably atomize, the irradiation amount of the vibration wave in the vibration wave generation unit 23 and the supply amount of water in the Peltier module 17 are controlled by the control unit 22. To be. That is, the vibration wave control unit 24 that controls the vibration wave generation unit 23 and the cooling control unit 20 that controls the Peltier module 17 are controlled by the control unit 22 that controls the high voltage generation circuit 11.

As an example, specific control contents executed by the control unit 22 in the present embodiment will be described with reference to FIG.
When a power switch (not shown) of the electrostatic atomizer 10 is turned on, the control unit 22 energizes the circuit and supplies power to the high voltage generation circuit 11 so that the high voltage generated by the high voltage generation circuit 11 is It is applied to the atomizing electrode 12 (step S1). In the electrostatic atomization in the electrostatic atomizer, first, when a starting voltage is applied, the Coulomb force is applied to the water supplied to the tip of the atomization electrode 12, and the liquid level of the water is locally conical. A swell (Taylor cone) is formed. When the Taylor cone formed in this way grows and the charge concentrates at the tip of the Taylor cone and the density of the charge becomes high, the water at the tip of the Taylor cone has a large energy (repulsion of the high-density charge). Force) and split / scatter (Rayleigh split) exceeding the surface tension. Thereby, nanometer-sized charged fine particle water is generated, and electrostatic atomization is started.

  After step S1, the control unit 22 determines whether atomization has been started from the atomization electrode 12 (step S2). When the determination result is affirmative (atomization has started), the control unit 22 turns on the vibration wave generation unit 23 via the vibration wave control unit 24, and a predetermined amount of initial vibration wave toward the discharge unit 12a. Is irradiated (step S3). If the determination result in step S2 is negative (atomization has not started), the control unit 22 starts atomization from the atomization electrode 12 again in step S2 while continuing to apply a high voltage by the high voltage generation circuit 11. It is determined whether or not it has been done.

  After step S3, the control unit 22 determines whether or not the generation amount (atomization amount) of the charged fine particle water atomized by the atomization electrode 12 is a preset desired atomization amount (step S4). When the determination result is NG (the desired atomization amount is not obtained), the control unit 22 increases the vibration wave irradiation amount of the vibration wave generation unit 23 from the initial vibration wave via the vibration wave control unit 24. (Step S7). After increasing the vibration wave irradiation amount of the vibration wave generating unit 23 in step S7, the generation amount (atomization amount) of the charged fine particle water atomized by the atomizing electrode 12 in step S4 is set again in a desired mist. It is determined whether or not the amount is a conversion amount. If the determination result in step S4 is OK (a desired atomization amount is obtained), it is determined whether or not to stop the atomization by the atomization electrode 12 (step S5). This step S5 is determined by, for example, a preset atomization time and a high voltage application time. If the atomization by the atomization electrode 12 is not stopped in step S5, the process returns to step S4. When the atomization by the atomization electrode 12 is stopped in step S5, the control unit 22 turns off the high voltage application by the high voltage generation circuit 11 and the vibration wave generated by the vibration wave generation unit 23 via the vibration wave control unit 24. The irradiation is turned off (step S6).

Next, characteristic actions and effects of the first embodiment will be described.
(1) The electrostatic atomizer 10 of 1st Embodiment is provided with the high voltage generation circuit 11, the atomization electrode 12, and the liquid supply means 14, and also the discharge as a discharge area | region of the atomization electrode 12 A vibration wave generator 23 for irradiating the part 12a with vibration waves is provided. According to this configuration, the generation amount of charged fine particle water can be increased without increasing the voltage applied between the atomizing electrode 12 and the counter electrode 13. Therefore, the generation amount of ozone can be suppressed and the generation amount of charged fine particle water can be stably increased.

  (2) The electrostatic atomizer 10 of 1st Embodiment is comprised so that at least 1 type chosen from an ultrasonic wave and a microwave may be used as a vibration wave irradiated by the vibration wave generation part 23. FIG. According to this configuration, since the vibration wave can be irradiated using a known means, the vibration wave can be irradiated using a simple and inexpensive method.

  (3) In the electrostatic atomizer 10 of the first embodiment, when an ultrasonic wave is used as the vibration wave, the irradiation frequency is 20 kHz to 600 kHz, and when the microwave is used, the irradiation frequency is 2 GHz. It is configured to be ˜4 GHz. According to this structure, the generation amount of charged fine particle water can be increased efficiently.

  (4) The electrostatic atomizer 10 of 1st Embodiment is provided with the shielding cover 25 as a shielding part, in order to prevent irradiation of the vibration wave to areas other than a discharge area. According to this configuration, it is possible to accurately irradiate the discharge part 12a with a vibration wave, and to efficiently increase the amount of charged fine particle water generated. Moreover, irradiation to the area | regions other than the discharge part 12a, for example, the atomization electrode 12 and the counter electrode 13, can be prevented, and the temperature rise by irradiation with a vibration wave can be prevented. Therefore, it is possible to prevent a region other than the discharge part 12a, for example, the atomization electrode 12 and the counter electrode 13 from being overheated and causing malfunction. Moreover, the production | generation of condensed water on the surface of the cooled atomization electrode 12 is not prevented.

  (5) The electrostatic atomizer 10 according to the first embodiment includes a control unit 22 that controls the voltage applied by the high voltage generation circuit 11. The control unit 22 controls the vibration wave irradiation amount in the vibration wave generation unit 23 and the water supply amount in the liquid supply unit 14 via the vibration wave control unit 24 and the cooling control unit 20, respectively. According to this configuration, the amount of charged fine particle water generated can be increased more stably. Moreover, the generation amount of charged fine particle water can be adjusted.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to FIG.
The electrostatic atomizer 10 of the present embodiment is different from the electrostatic atomizer 10 of the first embodiment in that an outside air sensor 26 is provided. For this reason, in the embodiment described below, the same configuration (the same control content) as that of the already described embodiment is denoted by the same reference numeral, and the overlapping description is omitted or simplified.

  In the present embodiment, an outside air sensor 26 that detects temperature, humidity, or atmospheric components of an external environment such as a room where the electrostatic atomizer 10 is installed is provided. The outside air sensor 26 may be configured to detect one of temperature, humidity, and atmospheric components of the external environment, or may be configured to detect a plurality of them. Although the atmospheric component which the external air sensor 26 detects is not specifically limited, For example, an odor component is mentioned. Examples of odor components include methane gas, ammonia gas, and combustion components. The outside air sensor 26 is accommodated in an outer shell casing (not shown).

  The outside air sensor 26 is connected to the control unit 22, and the control unit 22 reads the measurement value of the outside air sensor so that the generation amount of the charged particulate water is appropriate to the vibration wave control unit 24 and the vibration in the vibration wave generation unit 23. The amount of current applied to the liquid supply means 14 is adjusted to the irradiation amount of the wave or the cooling control unit 20. Thereby, it is possible to maintain the charged fine particle water efficiently and stably based on the external environment.

  For example, when a temperature sensor and a humidity sensor are used as the outside air sensor 26, the control unit 22 preliminarily has a liquid supply capability in the liquid supply unit 14 and a vibration wave irradiation amount in the vibration wave generation unit with respect to a combination of temperature and humidity. With a table set. Based on this table, the control unit 22 controls the cooling control unit 20 to adjust the cooling capacity, and also controls the vibration wave control unit 24 to adjust the irradiation amount of the vibration wave, so that the desired amount of charged fine particle water is generated. To get.

  For example, when a gas sensor is used as the outside air sensor 26, first, the concentration of a specific atmospheric component (for example, an odor component such as methane gas) is detected. Next, based on the measured concentration of atmospheric components, the control unit 22 controls the cooling control unit 20 to adjust the cooling capacity and also controls the vibration wave control unit 24 to adjust the irradiation amount of the vibration wave. For example, when the concentration of a specific odor component is high, the amount of condensed water generated by the liquid supply unit 14 and the amount of vibration wave irradiation by the vibration wave generator 23 are increased to increase the amount of charged particulate water generated. Thereby, charged fine particle water is generated according to a specific odor component concentration, and the odor component can be efficiently decomposed by the charged fine particle water.

As an example, specific control contents executed by the control unit 22 in the present embodiment will be described with reference to FIG.
When a power switch (not shown) of the electrostatic atomizer 10 is turned on, the controller 22 performs steps S1 to S3 as in steps S1 to S3 in FIG. Next, the control unit 22 determines whether the generation amount (atomization amount) of the charged fine particle water atomized by the atomization electrode 12 is a preset desired atomization amount and the measurement value input from the outside air sensor 26. Is a desired measurement value set in advance (step S4a).

  When the determination result is NG (the desired atomization amount or the measured value of the outside air sensor 26 is not obtained), the vibration wave irradiation amount of the vibration wave generation unit 23 is determined from the initial vibration wave via the vibration wave control unit 24. Is also increased (step S7). After increasing the vibration wave irradiation amount of the vibration wave generator 23 in step S7, whether or not the generation amount (atomization amount) of the charged fine particle water is a preset desired atomization amount and the outside air sensor in step S4a again. It is determined whether the measurement value input from 26 is a desired measurement value set in advance. If the determination result in step S4a is OK (a desired atomization amount or a measured value of the outside air sensor 26 is obtained), it is determined whether or not atomization by the atomization electrode 12 is to be stopped (step S5). Step S5 is determined based on, for example, a preset atomization time and a high voltage application time. In step S5, when the atomization by the atomization electrode 12 is not stopped, the process returns to step S4a. When the atomization by the atomization electrode 12 is stopped in step S5, the control unit 22 turns off the high voltage application by the high voltage generation circuit 11 and the vibration wave generated by the vibration wave generation unit 23 via the vibration wave control unit 24. The irradiation is turned off (step S6).

Next, characteristic effects of the second embodiment will be described.
(6) The electrostatic atomizer 10 of 2nd Embodiment is provided with the external air sensor 26 which detects the temperature, humidity, or atmospheric component of external environments, such as a room. The outside air sensor 26 is connected to the control unit 22. The control unit 22 reads the measured value of the outside air sensor 26 and the vibration wave control unit 24 reads the vibration wave irradiation amount and the cooling control unit 20 so that the generation amount of the charged fine particle water is appropriate. The energization amount to the liquid supply means 14 is configured to be adjusted. According to this configuration, the charged fine particle water can be stably maintained based on the external environment.

In addition, you may change each said embodiment of this invention as follows.
In the above embodiment, the electrostatic atomizer 10 is formed so as to apply a high voltage between the atomization electrode 12 and the counter electrode 13 disposed to face the atomization electrode 12. However, the electrostatic atomizer 10 may be configured not to include the counter electrode 13 and to apply a high voltage to the atomization electrode 12. Further, the counter electrode 13 is formed by the components of the electrostatic atomizer 10 disposed around the atomization electrode 12 such as the casing 15 and the shielding cover 25, and the outer casing of the device on which the electrostatic atomizer 10 is mounted. You may make it play the role of.

  In each of the above embodiments, the atomizing electrode 12 is formed of a capillary electrode or a porous body, and water supplied up to the periphery of the atomizing electrode 12 is supplied to the tip surface of the atomizing electrode 12 using a capillary phenomenon. It is good also as a structure. Specifically, as shown in FIG. 5, a water reservoir portion 28 that stores water 27 (liquid) supplied to the atomizing electrode 12 is provided, and the tip of the atomizing electrode 12 is utilized from the water reservoir portion 28 by utilizing capillary action. Water is supplied to the section. In this case, water is supplied using the capillary phenomenon by providing the atomizing electrode 12 with a fine hole or a porous portion so that the capillary phenomenon occurs. When the water reservoir 28 and the atomizing electrode 12 are separated from each other, water is supplied from the water reservoir 28 to the atomizing electrode 12 through a water transport member that generates a capillary phenomenon.

  In each of the above embodiments, the synthetic resin shielding cover 25 is provided as a shielding portion for preventing the irradiated vibration wave from irradiating the region other than the discharge portion 12a, for example, the atomizing electrode 12 and the counter electrode 13. However, the shape of the shielding part is not particularly limited, and may be a cylindrical shape. Moreover, the material of the shielding part is not particularly limited, and may be a material such as a metal other than the synthetic resin.

  In each of the above-described embodiments, the shielding cover 25 is provided as a shielding portion for preventing the irradiated vibration wave from irradiating the region other than the discharge portion 12a, for example, the atomizing electrode 12 and the counter electrode 13. However, the shielding unit is not an essential configuration, and the electrostatic atomizer may be configured without providing the shielding unit.

  In each of the above embodiments, the Peltier module 17 that is a semiconductor electronic heat exchange element is used as a cooling unit that constitutes the liquid supply unit 14. However, the liquid supply unit 14 may be configured to be able to cool the atomizing electrode 12 and may employ a heat exchanger such as a cooling cycle.

  DESCRIPTION OF SYMBOLS 10 ... Electrostatic atomizer, 11 ... High voltage generation circuit, 12 ... Atomization electrode, 12a ... Discharge part, 13 ... Counter electrode, 14 ... Liquid supply means, 22 ... Control part, 23 ... Vibration wave generation part, 25 ... shielding cover, 26 ... outside air sensor.

Claims (7)

A high voltage generation circuit;
An atomizing electrode to which a high voltage generated by the high voltage generation circuit is applied;
An electrostatic atomizer comprising a liquid supply means for supplying water to be atomized to the atomization electrode,
An electrostatic atomizer comprising a vibration wave generator for irradiating a vibration wave to a discharge region of the atomizing electrode. In the electrostatic atomizer of Claim 1,
The electrostatic atomizer is characterized in that the vibration wave is at least one selected from ultrasonic waves and microwaves. In the electrostatic atomizer of Claim 2,
The ultrasonic atomizing apparatus, wherein the ultrasonic wave has an irradiation frequency of 20 kHz to 600 kHz. In the electrostatic atomizer of Claim 2,
The electrostatic atomizing apparatus, wherein the microwave is irradiated with a frequency of 2 GHz to 4 GHz. In the electrostatic atomizer of any one of Claims 1-4,
An electrostatic atomizer comprising a shielding portion for preventing irradiation of the vibration wave to a region other than the discharge region. In the electrostatic atomizer of any one of Claims 1-5,
A control unit for controlling a voltage applied by the high voltage generation circuit;
The control unit controls at least one selected from an irradiation amount of vibration waves in the vibration wave generation unit and a supply amount of water in the liquid supply means. In the electrostatic atomizer of any one of Claims 1-6,
An outside air sensor that detects at least one selected from the temperature, humidity, and atmospheric components of the environment in which the electrostatic atomizer is used;
The electrostatic atomizer is characterized in that at least one selected from a vibration wave irradiation amount in the vibration wave generation unit and a water supply amount in the liquid supply means is controlled based on a measurement value of the outside air sensor. .

Images