JP2011045817A - Electrostatic atomizer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrostatic atomizer capable of generating electrically charged fine particle mist efficiently even while using a piezoelectric vibrator. <P>SOLUTION: The electrostatic atomizer includes: a piezoelectric vibrator 10 which generates high voltage at a secondary side electrode 11 by electricity-machine-electric conversion based on a voltage application to a primary side electrodes 12a and 12b; a discharge electrode 3 carrying out a discharge based on the high voltage application generated at this piezoelectric vibrator 10; and a tank 1 carrying out liquid supply to the discharge electrode 3. In the electrostatic atomizer, the discharge electrode 3 and the secondary side electrode 11 of the piezoelectric vibrator 10 are electrically connected via a contact member 14 having elasticity in order to control the transmission of the mechanical vibration of the piezoelectric vibrator 10 to the discharge electrode 3 side. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an electrostatic atomizer for generating nanometer-sized charged fine particle mist.

  Conventionally, as in Patent Document 1, for example, a long time is obtained by electro-mechanical-electric conversion based on voltage application to primary electrodes (input electrodes) provided on both surfaces in the thickness direction of a piezoelectric vibrator (piezoelectric transformer). Devices that generate ozone and ions by generating a high voltage at a secondary electrode (output electrode) provided on an end face in the vertical direction and performing discharge based on the high voltage are known.

  In such an apparatus, there is also known an electrostatic atomizing apparatus that generates a nanometer-sized charged fine particle mist by atomizing the liquid by supplying the liquid to a discharge portion. This charged fine particle mist is attracting attention because of its high health and beauty effects.

Japanese Patent Laid-Open No. 6-243952

  By the way, when an electrostatic atomizer is configured using the above-described piezoelectric vibrator, mechanical vibration (ultrasonic vibration) is generated in the piezoelectric vibrator, so that a functional mist that can provide health and beauty effects like a charged fine particle mist. In addition, since a lot of simple mist generated by the mechanical vibration is generated, it is difficult to efficiently generate charged fine particle mist.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an electrostatic atomizer capable of efficiently generating charged fine particle mist while using a piezoelectric vibrator. It is in.

  In order to solve the above problems, the invention according to claim 1 is a piezoelectric vibrator that generates a high voltage at a secondary side electrode by electro-mechanical-electrical conversion based on voltage application to the primary side electrode; A discharge electrode that discharges based on application of a high voltage generated by a piezoelectric vibrator and a liquid supply means that supplies liquid to the discharge electrode are provided, and the liquid is atomized by the discharge to generate charged fine particle mist. In the electrostatic atomizer, the discharge electrode and the secondary electrode of the piezoelectric vibrator are connected via vibration damping means for suppressing transmission of mechanical vibration of the piezoelectric vibrator to the discharge electrode side. The gist is that they are electrically connected.

  According to this invention, the discharge electrode and the secondary electrode of the piezoelectric vibrator are electrically connected via the vibration damping means for suppressing the transmission of the mechanical vibration of the piezoelectric vibrator to the discharge electrode side. Therefore, generation of uncharged mist generated from the mechanical vibration at the discharge electrode can be suppressed, and charged fine particle mist can be efficiently generated.

  According to a second aspect of the present invention, in the electrostatic atomization device according to the first aspect of the present invention, the electrostatic atomizer includes a contact member that electrically connects the discharge electrode and the secondary electrode of the piezoelectric vibrator. The gist of the invention is that the vibration damping means is constituted by its own elasticity.

  According to the present invention, since the contact member for electrical connection between the discharge electrode and the secondary electrode of the piezoelectric vibrator is provided, and the contact member itself has elasticity, the vibration damping means is configured. Transmission of mechanical vibrations generated by the piezoelectric vibrator to the discharge electrode is suppressed without increasing the number of points.

  The invention according to claim 3 is the electrostatic atomization device according to claim 1, further comprising a contact member for electrically connecting the discharge electrode and the secondary electrode of the piezoelectric vibrator. The gist of the invention is that the vibration damping means is configured by fixing the elastic member to the surface.

  According to the present invention, the contact member for electrical connection between the discharge electrode and the secondary electrode of the piezoelectric vibrator is provided, and the vibration damping means is configured by fixing the elastic member to the contact member. In addition, transmission of mechanical vibration generated by the piezoelectric vibrator to the discharge electrode is preferably suppressed by a separately prepared elastic member.

The gist of the invention described in claim 4 is that, in the electrostatic atomizer according to claim 2 or 3, the contact member is in point contact with the secondary electrode of the piezoelectric vibrator. .
According to the present invention, since the contact member is in point contact with the secondary electrode of the piezoelectric vibrator, it is possible to more reliably suppress the mechanical vibration generated by the piezoelectric vibrator from being transmitted to the contact member and thus the discharge electrode. It becomes.

  Invention of Claim 5 has the ventilation means which sends the wind for transferring the mist atomized from the said discharge electrode in the electrostatic atomizer of any one of Claims 1-4. This is the gist.

  According to this invention, since the blowing means for sending the wind for transferring the atomized mist from the discharge electrode is provided, the generated charged fine particle mist can be efficiently transferred to a desired location, and the health and beauty effects are improved. Can contribute.

Invention of Claim 6 makes it the summary to have the counter electrode connected to the ground with respect to the said discharge electrode in the electrostatic atomizer of any one of Claims 1-5. .
According to the present invention, since the counter electrode connected to the ground with respect to the discharge electrode is provided, the discharge electrode can be discharged efficiently and stably, and the charged fine particle mist can be generated more satisfactorily. Become.

  A seventh aspect of the present invention is the electrostatic atomizer according to any one of the first to sixth aspects, wherein the liquid supply means causes condensation on the discharge electrode by a cooling operation of the Peltier unit. The gist is that it is configured to supply condensed water.

  According to the present invention, the discharge electrode is cooled by the Peltier unit, and condensation is generated on the discharge electrode from moisture in the air, and the condensed water is used for electrostatic atomization. Thereby, since the liquid for electrostatic atomization can respond, without using storage means, such as a tank, the miniaturization and weight reduction of an electrostatic atomization apparatus and the effort which supplies a liquid each time can be omitted.

The gist of an eighth aspect of the present invention is the electrostatic atomizer according to any one of the first to seventh aspects, wherein a plurality of the discharge electrodes are provided.
According to the present invention, since a plurality of discharge electrodes are provided, it is possible to increase the generation amount of charged fine particle mist as compared with the case where one discharge electrode is provided.

  According to a ninth aspect of the present invention, in the electrostatic atomizer according to any one of the first to eighth aspects, the piezoelectric vibrator is disconnected from a position that becomes a node of mechanical vibration to the secondary electrode. The gist is that the area is small.

  According to the present invention, the piezoelectric vibrator has a smaller cross-sectional area from the position where it becomes a node of mechanical vibration to the secondary electrode, so that it is possible to generate a high voltage boosted to the secondary electrode more efficiently. It becomes.

  According to a tenth aspect of the present invention, in the electrostatic atomizer according to any one of the first to ninth aspects, in the piezoelectric vibrator, the piezoelectric vibrator is disposed at a position that becomes a node of mechanical vibration. The gist of the present invention is that a holding portion is provided.

  According to the present invention, in the piezoelectric vibrator, since the holding portion that holds the piezoelectric vibrator is provided at a position that becomes the mechanical vibration node, the holding portion that holds the piezoelectric vibrator causes the holding portion of the piezoelectric vibrator to move to the node of the piezoelectric vibrator. Concentration of tensile / compressive stress due to mechanical vibration can be suppressed. Therefore, it is possible to avoid breakage of the piezoelectric vibrator at a position that becomes a node of mechanical vibration.

  An eleventh aspect of the present invention is the electrostatic atomization device according to the tenth aspect, wherein in the piezoelectric vibrator, a plurality of positions serving as mechanical vibration nodes exist and the holding portion is provided. The gist of the present invention is that a protective portion for protecting the piezoelectric vibrator is provided at a position that becomes a node other than the position where it becomes.

  According to this invention, in the piezoelectric vibrator, there are a plurality of positions serving as mechanical vibration nodes, and the piezoelectric vibrator is protected at positions other than the position where the holding portion is provided. Since the protective part is provided, it is possible to suppress the concentration of tensile / compressive stress due to mechanical vibration on the nodes of the piezoelectric vibrators by the holding part and the protective part that hold the piezoelectric vibrators. Therefore, it is possible to avoid breakage of the piezoelectric vibrator at a position that becomes a node of a plurality of mechanical vibrations.

  The invention according to claim 12 is the electrostatic atomizer according to any one of claims 1 to 11, wherein the secondary electrode of the piezoelectric vibrator is provided with a protective material. Is the gist.

  According to the present invention, since the secondary side electrode of the piezoelectric vibrator is provided with the protective material, durability against acid, high voltage, and strong mechanical vibration is improved in the secondary side electrode.

  ADVANTAGE OF THE INVENTION According to this invention, the electrostatic atomizer which can produce | generate charged fine particle mist efficiently can be provided, using a piezoelectric vibrator.

The block diagram of the electrostatic atomizer in this embodiment. (A) The longitudinal cross-sectional view of the piezoelectric vibrator in this embodiment, (b) The perspective view of the piezoelectric vibrator in this embodiment. (A)-(c) The block diagram of the discharge electrode part in another example. (A) (b) The block diagram of the discharge part in another example. The block diagram provided with the Peltier unit in another example. The block diagram provided with the elastic member for vibration damping in another example. (A)-(c) The block diagram which shows the piezoelectric vibrator of various shapes in another example. (A) (b) The block diagram which shows the counter electrode of various shapes in another example. The block diagram which provided the holding member and the protection member in the piezoelectric vibrator in another example.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, each figure shown below is a schematic diagram of the electrostatic atomizer showing only the configuration necessary for explaining the mechanism for generating the charged fine particle mist. The illustration and description of the configuration are omitted.

  As shown in FIG. 1, a tank 1 is detachably provided in a tank holder (not shown) in the electrostatic atomizer. The liquid in the tank 1 is supplied to the discharge electrode 3 through the liquid supply path 2 by a water supply pump P disposed on the liquid supply path 2. The electrostatic atomizer is provided with a fan 4.

  As shown in FIGS. 2 (a) and 2 (b), a rectangular plate-like piezoelectric vibrator (piezoelectric transformer) 10 made of a lead zirconate titanate (PZT) material is polarized in two directions, ie, a thickness direction and a longitudinal direction. Has been configured. A secondary electrode (output electrode) 11 is provided on one end face side in the longitudinal direction of the piezoelectric vibrator 10 (the direction of the arrow X shown in FIG. 2). Further, on the other side in the longitudinal direction of the piezoelectric vibrator 10 and on both surfaces in the thickness direction of the piezoelectric vibrator 10 (the direction of the arrow Y shown in FIG. 2), primary side electrodes (input electrodes) 12a and 12b are respectively provided. It has been. The dimensional ratio between the thickness direction and the length direction of the piezoelectric vibrator 10 corresponds to an approximate amplification ratio between the input voltage and the output voltage, and is set to about 10 to 20 times in this embodiment.

  As shown in FIG. 1, the primary electrodes 12 a and 12 b are electrically connected to a power supply unit 13 that supplies power (alternating voltage), and the length in the longitudinal direction of the piezoelectric vibrator 10 by the power supply unit 13. An AC voltage having a resonance frequency corresponding to is applied to the primary electrodes 12a and 12b. Based on this AC voltage application, strong mechanical vibration (ultrasonic vibration) is generated in the longitudinal direction of the piezoelectric vibrator 10, and vibration is generated in the standing wave W1 mode forming the wavelength 1 / 2λ shown by the two-dot chain line in FIG. To do. Note that the standing wave is originally a longitudinal wave vibration, but in FIG. 1 it is shown as a transverse wave for convenience of explanation. Due to this mechanical vibration, a higher voltage is generated at the secondary side electrode 11 than the voltage applied from the power supply unit 13 to the primary side electrodes 12a and 12b.

  The high voltage generated in the secondary electrode 11 is applied to the discharge electrode 3 through the contact member 14 that makes point contact at the center of the surface of the secondary electrode 11 on the discharge electrode 3 side. In the present embodiment, the discharge electrode 3 and the piezoelectric vibrator 10 are separately supported, and the discharge electrode 3 and the contact member 14 are fixed, and the contact member 14 is the secondary electrode 11 of the piezoelectric vibrator 10. Is touching.

  The contact member 14 is formed of a metal material such as stainless steel (SUS), copper, and aluminum so as to have elasticity, and suppresses mechanical vibration generated in the piezoelectric vibrator 10 from being transmitted to the discharge electrode 3. Therefore, a high voltage boosted by the secondary electrode 11 can be applied to the discharge electrode 3 while suppressing transmission of mechanical vibration to the discharge electrode 3 without increasing the number of parts. In addition, since the secondary electrode 11 and the contact member 14 are in point contact, the mechanical vibration generated in the piezoelectric vibrator 10 can be more reliably suppressed from being transmitted to the discharge electrode 3. The secondary side electrode 11 is coated with a gold plating or the like made of an acid resistant material as a protective material (not shown), and the secondary side electrode 11 improves durability against acid, high voltage, and strong mechanical vibration. ing.

  A holding member 16 as a holding portion for holding the piezoelectric vibrator 10 is provided at a position where the standing wave W1 of the piezoelectric vibrator 10 becomes the node F1 so as to sandwich the piezoelectric vibrator 10 in the thickness direction. Yes. The holding member 16 is made of an elastic body and is fastened to the piezoelectric vibrator 10 by a bolt (not shown) and supported by a support (not shown) in the electrostatic atomizer. Therefore, although mechanical vibration is generated in the longitudinal direction in the piezoelectric vibrator 10, the holding member 16 that sandwiches the piezoelectric vibrator 10 is provided at a position that becomes the node F1 of the standing wave W1. Concentration of tensile and compressive stress can be suppressed.

  A counter electrode 15 connected to the ground is provided so as to face the discharge electrode 3, and a high voltage is applied between the discharge electrode 3 and the counter electrode 15 to generate a corona discharge around the discharge electrode 3. The liquid supplied from 1 to the tip of the discharge electrode 3 via the liquid supply path 2 is charged, and a Coulomb force acts on the charged liquid. Further, the liquid level supplied and held at the tip of the discharge electrode 3 rises locally in a cone shape with a sharp tip, forming a tailor cone, and the charge is concentrated on the tip of the tailor cone to increase the density. At the same time, electrostatic atomization is performed by repeatedly dividing and scattering (Rayleigh splitting) of the liquid by the repulsive force of the densified charge. Then, nanometer-sized charged fine particle mist having radicals is generated by electrolysis. The charged fine particle mist generated in this way can be efficiently transferred to a desired location (in the direction of the arrow X1 shown in FIG. 1) by the fan 4 so that health and beauty effects can be obtained. It has become.

Next, characteristic effects of the present embodiment will be described.
(1) In this embodiment, the discharge electrode 3 and the secondary electrode 11 of the piezoelectric vibrator 10 are connected via a contact member 14 for suppressing transmission of mechanical vibration of the piezoelectric vibrator 10 to the discharge electrode 3 side. Are electrically connected. Therefore, generation of uncharged mist generated from the mechanical vibration in the discharge electrode 3 can be suppressed, and charged fine particle mist can be efficiently generated.

  (2) In the present embodiment, the contact member 14 that makes electrical connection between the discharge electrode 3 and the secondary electrode 11 of the piezoelectric vibrator 10 is provided, and the contact member 14 itself has elasticity so that vibration damping means is provided. Is configured. Therefore, transmission of mechanical vibration generated in the piezoelectric vibrator 10 to the discharge electrode 3 can be suppressed without increasing the number of parts.

  (3) In this embodiment, since the contact member 14 is in point contact with the secondary electrode 11 of the piezoelectric vibrator 10, mechanical vibration generated in the piezoelectric vibrator 10 is applied to the contact member 14, and eventually to the discharge electrode 3. It is possible to more reliably suppress transmission.

  (4) In this embodiment, since the fan 4 for sending wind for transferring the atomized mist from the discharge electrode 3 is provided, the generated charged fine particle mist can be efficiently transferred to a desired location, and health And can contribute to the improvement of beauty effects.

  (5) In this embodiment, since the counter electrode 15 connected to the ground with respect to the discharge electrode 3 is provided, the discharge electrode 3 is discharged efficiently and stably, and the charged fine particle mist is more satisfactorily performed. Can be generated.

  (6) In the present embodiment, since the holding member 16 that holds the piezoelectric vibrator 10 is provided at a position that becomes the mechanical vibration node F <b> 1 in the piezoelectric vibrator 10, the holding member 16 that holds the piezoelectric vibrator 10. Accordingly, it is possible to suppress the concentration of tensile / compressive stress due to the mechanical vibration on the node F1 of the piezoelectric vibrator 10. Accordingly, it is possible to avoid breakage of the piezoelectric vibrator 10 at a position where the mechanical vibration node F1 is obtained.

  (7) In the present embodiment, the secondary electrode 11 of the piezoelectric vibrator 10 is provided with a protective material such as gold plating made of an acid-resistant material (coated). Improves durability against acid, high voltage and strong mechanical vibration.

In addition, you may change embodiment of this invention as follows.
In the above embodiment, as shown in FIG. 1 and the like, the tip of the discharge electrode 3 has a sharp projecting shape. For example, as shown in FIG. In order to prevent deterioration of the tip of the discharge electrode 3 due to application of a high voltage as shown in FIG. 3B, the tip may be flat. You may make it.

  Further, as shown in FIG. 3C, a plurality of discharge electrodes 3 may be provided to increase the generation amount of charged fine particle mist. Further, when a plurality of discharge electrodes 3 are provided, a plurality of discharge electrodes 3 may be provided from one contact member 14 as shown in FIG. 4A, and a plurality of contacts are provided as shown in FIG. One discharge electrode 3 may be provided on each member 14. It is good also as a structure which combined these.

  In the above embodiment, the liquid is supplied to the discharge electrode 3 using the tank 1. However, for example, the contact member 14 may be provided with a Peltier unit 20 (liquid supply means) on the secondary electrode 11 side. As shown in FIG. 5, the cooling surface of the Peltier element 21 is disposed so as to contact the contact member 14, and the radiation fins 22 are attached to the radiation surface opposite to the cooling surface of the Peltier element 21. The discharge electrode 3 is cooled via the contact member 14 by the driving of this, and condensation is generated on the surface of the discharge electrode 3 to supply moisture to the discharge electrode 3. When the liquid is supplied by the Peltier unit 20, the liquid for electrostatic atomization can be handled without using storage means such as the tank 1, so that the electrostatic atomization apparatus can be reduced in size and weight, and the trouble of supplying the liquid each time. Can be omitted.

  As shown in FIG. 6, an elastic member 30 such as an anti-vibration rubber may be fixed to the contact member 14. That is, the vibration damping means is configured by fixing the elastic member 30 to the contact member 14. Accordingly, transmission of mechanical vibration generated in the piezoelectric vibrator 10 to the discharge electrode 3 is preferably suppressed by the elastic member 30 separately prepared.

  As shown in FIG. 7A, both side surfaces 40a and 40b from the node F1 of the standing wave W1 in the longitudinal direction of the piezoelectric vibrator 10 to the secondary electrode 11 are directed toward the secondary electrode 11 side. A configuration in which the width is reduced in a curved shape may be employed. Since the width H1 in the short direction of the piezoelectric vibrator 10 on the secondary electrode 11 side is shorter than the width H2 in the short direction of the piezoelectric vibrator 10 corresponding to the node F1 of the standing wave W1, the secondary side The cross-sectional area of the piezoelectric vibrator 10 decreases toward the electrode 11 side, and the high voltage boosted to the secondary electrode 11 can be generated more efficiently. Moreover, as shown in FIG.7 (b), it is good also as a structure which both side surfaces 40a and 40b shrink | contract linearly as it goes to the secondary side electrode 11, and as shown in FIG.7 (c), a secondary side may be sufficient as it. Even if the electrode 11 side is configured as a narrow stepped shape, the same effect can be obtained.

  Although not specifically mentioned in the above embodiment, the counter electrode 15 may be configured in a mesh shape in which a plurality of holes 15a having a rectangular shape in plan view are formed, as shown in FIG. As shown in FIG. 8 (b), the counter electrode 15 may be configured in the shape of a ring hole 15b, and the discharge electrode 3 may be arranged so as to be positioned at the center of the ring hole 15b.

  In the above embodiment, the piezoelectric vibrator 10 vibrates in the standing wave W1 mode that forms the wavelength 1 / 2λ, but for example, in the standing wave W2 mode that forms the wavelength 1λ as shown in FIG. It may be vibrated. In this case, there are two nodes (nodes F1 and F2) in the standing wave W2, as shown in FIG. Therefore, in addition to the holding member 16 provided at the position of the node F <b> 1 in the piezoelectric vibrator 10, a protection member 50 as a protection unit that protects the piezoelectric vibrator 10 is provided at the position of the node F <b> 2 in the piezoelectric vibrator 10. Yes. The protection member 50 is made of an elastic body, and is fastened together with a bolt (not shown) so as to sandwich the piezoelectric vibrator 10 in the thickness direction, and is supported by a support portion (not shown) in the electrostatic atomizer. Thereby, even if mechanical vibration is generated in the longitudinal direction in the piezoelectric vibrator 10 and tensile / compressive stress is concentrated on the nodes F1 and F2 of the standing wave W2, the holding member 16 and the protection member 50 that sandwich the piezoelectric vibrator 10 are interposed. Can suppress the tensile / compressive stress concentrated on the nodes F1 and F2 of the standing wave W2, and the piezoelectric vibrator 10 can be prevented from being broken.

  In the above embodiment, the contact member 14 is in point contact at the center portion of the contact surface with the secondary electrode 11 as shown in FIG. 2B, but may not be at the center portion. You may make it contact the width direction edge part side, as shown to 4 (a).

In each of the above embodiments, the water supply pump P is used as the liquid supply means. However, for example, the liquid stored in the tank 1 by capillary action may be supplied to the discharge electrode 3.
In the above embodiment, the piezoelectric vibrator 10 is configured using a lead zirconate titanate (PZT) -based material, but the piezoelectric vibrator 10 may be configured using another piezoelectric body.

  In the above-described embodiment, the radiating fins 22 of the Peltier unit 20 may be configured to be blown by the blower fan 4. In this case, the radiating fins 22 can be cooled more efficiently.

  In the above embodiment, the holding member 16 is fastened to the piezoelectric vibrator 10 with a bolt. However, the fixing method is not limited to this, and the holding member 16 may be fixed using sandwiching by a housing or an adhesive.

  DESCRIPTION OF SYMBOLS 1 ... Tank (liquid supply means), 3 ... Discharge electrode, 4 ... Fan (blower means), 10 ... Piezoelectric vibrator, 11 ... Secondary side electrode, 12a, 12b ... Primary side electrode, 14 ... Contact member (vibration damping) Means), 15 ... Counter electrode, 16 ... Holding member (holding part), 20 ... Peltier unit (liquid supply means), 30 ... Elastic member (vibration damping means), 50 ... Protection member (protection part), F1, F2 ... section.

Claims (12)

A piezoelectric vibrator that generates a high voltage at the secondary electrode by electro-mechanical-electric conversion based on voltage application to the primary electrode, and a discharge that discharges based on the high voltage application generated by the piezoelectric vibrator An electrostatic atomization device comprising an electrode and a liquid supply means for supplying a liquid to the discharge electrode, and generating the charged fine particle mist by atomizing the liquid by the discharge,
The discharge electrode and the secondary electrode of the piezoelectric vibrator are electrically connected via vibration damping means for suppressing transmission of mechanical vibration of the piezoelectric vibrator to the discharge electrode side. An electrostatic atomizer characterized by. In the electrostatic atomizer of Claim 1,
The vibration attenuating means is configured by comprising a contact member for electrically connecting the discharge electrode and the secondary electrode of the piezoelectric vibrator, and the contact member itself has elasticity. Electric atomizer. In the electrostatic atomizer of Claim 1,
A contact member for achieving electrical connection between the discharge electrode and the secondary electrode of the piezoelectric vibrator;
The electrostatic atomizer is characterized in that the vibration damping means is configured by fixing an elastic member to the contact member. In the electrostatic atomizer of Claim 2 or 3,
The electrostatic atomizer according to claim 1, wherein the contact member is in point contact with the secondary electrode of the piezoelectric vibrator. In the electrostatic atomizer of any one of Claims 1-4,
An electrostatic atomizer comprising a blowing means for sending wind for transferring atomized mist from the discharge electrode. In the electrostatic atomizer of any one of Claims 1-5,
An electrostatic atomizer having a counter electrode connected to the ground with respect to the discharge electrode. In the electrostatic atomizer of any one of Claims 1-6,
The electrostatic atomizer is characterized in that the liquid supply means is configured to generate dew condensation on the discharge electrode and supply dew condensation water by a cooling operation of the Peltier unit. In the electrostatic atomizer of any one of Claims 1-7,
An electrostatic atomizer comprising a plurality of the discharge electrodes. In the electrostatic atomizer of any one of Claims 1-8,
The electrostatic atomizer according to claim 1, wherein the piezoelectric vibrator has a cross-sectional area that decreases from a position that becomes a node of mechanical vibration to the secondary electrode. In the electrostatic atomizer of any one of Claims 1-9,
In the piezoelectric vibrator, an electrostatic atomizing device is characterized in that a holding portion for holding the piezoelectric vibrator is provided at a position serving as a node of mechanical vibration. In the electrostatic atomizer of Claim 10,
In the piezoelectric vibrator, there are a plurality of positions serving as mechanical vibration nodes, and a protection unit that protects the piezoelectric vibrator is provided at a position other than the position where the holding unit is provided. An electrostatic atomizer characterized by being provided. In the electrostatic atomizer of any one of Claims 1-11,
An electrostatic atomizer, wherein the secondary electrode of the piezoelectric vibrator is provided with a protective material.

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